Electrical junction box

Abstract

This enables miniaturization of electrical junction boxes. [Solution] The electrical connection box comprises a case, a circuit section provided inside the case, a wire harness for electrically connecting the circuit section to another device outside the case, a first terminal supporting a first wire electrically connected to the circuit section, and a second terminal supporting a second wire electrically connected to the circuit section. A portion of the wire harness, the first terminal, and the second terminal are arranged on the first surface side of the case. When the direction along one side of the first surface is defined as the left-right direction, and the direction along the other side of the first surface is defined as the up-down direction, the first terminal and the second terminal are located in a first region which is one of the left-right directions with respect to the portion of the wire harness, and the first terminal and the second terminal are in different positions in the up-down direction within the first region.

Description

Technical Field

[0001] This disclosure relates to an electrical connection box.

Background Art

[0002] Patent Document 1 discloses an electrical connection box having a function of distributing an input current and outputting it to an external load device. The electrical connection box has a case and a bus bar provided in the case. The bus bar has a branched structure.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The electrical connection box disclosed in Patent Document 1 has a power supply side end on the first surface side of the case and a load side end on the second surface side opposite to the first surface side. Depending on the electrical connection box, both the power supply side end and the load side end may be provided on the first surface side of the case. That is, both the input wire for connection to the power supply device and the output wire for connection to the load device may pass through the first surface side of the case.

[0005] FIG. 7 is a schematic diagram showing the internal structure of a conventional electrical connection box. An input wire harness 92 connected to a power supply device and an output wire harness 95 connected to a load device pass through the first surface 91 side of the case 90. Further, the electrical connection box 100 is configured such that a first output wire 93 and a second output wire 94 respectively connected to two separate load devices pass through the first surface 91 side.

[0006] The electrical junction box 100 has a first terminal 96 that supports the first output wire 93 and a second terminal 97 that supports the second output wire 94. If the direction along one side of the first surface 91 is defined as the left-right direction, then the first terminal 96, a part 92a of the input wire harness 92, a part 95a of the output wire harness 95, and the second terminal 97 are arranged in a line in one direction in the left-right direction. In this case, the left-right dimension W of the electrical junction box 100 becomes larger.

[0007] Therefore, the purpose of this disclosure is to provide an electrical junction box that can be miniaturized. [Means for solving the problem]

[0008] The electrical junction box of this disclosure comprises a case, a circuit section provided inside the case, a wire harness for electrically connecting the circuit section to another device outside the case, a first terminal for supporting a first wire electrically connected to the circuit section, and a second terminal for supporting a second wire electrically connected to the circuit section. An electrical connection box in which a part of the wire harness, the first terminal, and the second terminal are arranged on the first side of the case, If we define the direction along one side of the first face as the left-right direction, and the direction along the other side of the first face as the up-down direction, The first terminal and the second terminal are located in a first region which is in one of the left-right directions, with reference to the part of the wire harness. The first terminal and the second terminal are located at different positions relative to each other in the vertical direction within the first region. [Effects of the Invention]

[0009] According to this disclosure, it will be possible to miniaturize the electrical junction box. [Brief explanation of the drawing]

[0010] [Figure 1] Figure 1 is a perspective view of an electrical junction box. [Figure 2]Figure 2 is a perspective view of the electrical junction box (with the cover removed). [Figure 3] Figure 3 is a perspective view of the electrical junction box shown in Figure 2, viewed from a different direction. [Figure 4] Figure 4 is a front view of the electrical junction box with the cover removed. [Figure 5] Figure 5 is a plan view of the electrical junction box with the cover removed. [Figure 6] Figure 6 is an enlarged perspective view of the first and second terminals. [Figure 7] Figure 7 is a schematic diagram showing the internal structure of a conventional electrical junction box. [Modes for carrying out the invention]

[0011] <Summary of the embodiments of this disclosure> The embodiments of this disclosure are outlined below. (1) The electrical connection box of this embodiment comprises a case, a circuit section provided inside the case, a wire harness for electrically connecting the circuit section to another device outside the case, a first terminal for supporting a first wire electrically connected to the circuit section, and a second terminal for supporting a second wire electrically connected to the circuit section. An electrical connection box in which a part of the wire harness, the first terminal, and the second terminal are arranged on the first side of the case, If we define the direction along one side of the first face as the left-right direction, and the direction along the other side of the first face as the up-down direction, The first terminal and the second terminal are located in a first region which is in one of the left-right directions, with reference to the part of the wire harness. The first terminal and the second terminal are located at different positions relative to each other in the vertical direction within the first region.

[0012] According to the electrical connection box, the first terminal and the second terminal are concentrated and located in a first region which is one of the left - right directions with respect to a part of the wire harness. Therefore, the electrical connection box is miniaturized in the left - right direction. Even though the first terminal and the second terminal are concentrated in the first region, the first terminal and the second terminal are at different positions in the up - down direction. Therefore, interference between the first electric wire and the second electric wire is prevented.

[0013] Note that the "up - down direction" and the "left - right direction" are directions defined for explaining the configuration of the electrical connection box, and do not mean the "up - down direction (vertical up - down direction)" and the "left - right direction (horizontal left - right direction)" in the state where the electrical connection box is actually mounted on a vehicle body (entire device) such as an automobile.

[0014] (2) In the electrical connection box of (1) above, preferably, the first terminal has a first support portion that supports the first electric wires arranged in the left - right direction, the second terminal has a second support portion that supports the second electric wires arranged in the up - down direction, and the second support portion is located closer to the part of the wire harness in the left - right direction than the first support portion. According to the above configuration, since the second support portion supports the second electric wires arranged in the up - down direction, the second terminal is likely to be located closer in the left - right direction to the part of the wire harness. The first support portion supports the first electric wires arranged in the left - right direction. Therefore, compared with the case where the first electric wires are arranged in the up - down direction, the dimension of the first region in the up - down direction becomes smaller.

[0015] (3) In the electrical connection box of (2) above, preferably, the first terminal has a first fixing portion that fixes the first support portion to the case, the second terminal has a second fixing portion that fixes the second support portion to the case, and the first fixing portion and the second fixing portion are at different positions from each other in the left - right direction in the first region. According to the above configuration, for example, when the first terminal is located in one of the up - down directions relative to the second terminal, the first electric wire can pass through one of the up - down spaces of the second fixing portion, and it becomes possible to effectively utilize that space.

[0016] (4) In the electrical connection box according to any one of (1) to (3) above, preferably, when the direction orthogonal to the left-right direction and the up-down direction is defined as the front-back direction, the first terminal and the second terminal are at different positions in the front-back direction from each other in the first region. According to the above configuration, for example, when the first terminal and the second terminal are attached to the case from one side in the up-down direction, the first fixing portion of the first terminal and the second fixing portion of the second terminal do not overlap in the up-down direction, and the attachment work becomes easy.

[0017] (5) In the electrical connection box according to (3) or (4) above, preferably, the case has a tray-shaped first case that opens to one side in the up-down direction, a first bolt and a second bolt that protrude from the first case to the one side in the up-down direction, and a first nut and a second nut that are fastened to the first bolt and the second bolt, and each of the first terminal and the second terminal is fixed to the first case by the first nut and the second nut. According to the above configuration, when the first terminal and the second terminal are attached to the first case, the fastening work of the first nut and the second nut becomes easy.

[0018] (6) Preferably, the electrical connection box according to any one of (1) to (5) above includes an attachment member that supports at least one of the first electric wire and the second electric wire and wires the one electric wire along the wall of the case. According to the above configuration, interference between the first electric wire and the second electric wire is prevented inside the case.

[0019] <Details of Embodiments of the Present Disclosure> Hereinafter, details of embodiments of the present disclosure will be described with reference to the drawings. Note that at least a part of the embodiments described below may be arbitrarily combined.

[0020] 〔Overall Configuration of Electrical Connection Box〕 Figures 1 and 2 are perspective views of the electrical junction box 10. Figure 2 shows the electrical junction box 10 with the cover 15 removed. Figure 3 is a perspective view of the electrical junction box 10 shown in Figure 2, viewed from a different direction. Figure 4 is a front view of the electrical junction box 10 with the cover 15 removed. Figure 5 is a top view of the electrical junction box 10 with the cover 15 removed.

[0021] The electrical junction box 10 of this embodiment has the function of distributing input current and outputting it to an external load device, and is also called a branch box. The electrical junction box 10 has a case 11 and a circuit section 16 provided inside the case 11. The circuit section 16 has a plurality of busbars 12. The plurality of busbars 12 constitute a branch structure for the conductive path. The electrical junction box 10 is installed in an automobile such as an electric vehicle or a hybrid vehicle, and distributes the battery power to a plurality of on-board devices.

[0022] [Regarding Case 11] The orientation of the electrical junction box 10 will be defined later, but the case 11 has a flattened box shape with smaller dimensions in the vertical direction (Z direction) compared to the left-right direction (X direction) and the front-back direction (Y direction). The case 11 has a first case 13, a second case 14, and a cover 15 (see Figure 1). The first case 13 has a tray shape that opens upwards. The first case 13 also has a shape that opens forwards. The first case 13 is made of a metal material (aluminum or steel). The first case 13 is the lower case located below.

[0023] The second case 14 is housed within the first case 13 and serves as an upper case positioned on the bottom plate of the first case 13. A space for housing the circuit section 16 is provided between the first case 13 and the second case 14. The second case 14 is made of an insulating material (resin material). The cover 15 closes the opening on top of the first case 13. The cover 15 is made of a metal material (aluminum or steel).

[0024] With the cover 15 attached to the first case 13 (see Figure 1), the case 11 has an opening 40 that opens forward. The surface of the case 11 having the opening 40 is defined as the "first surface 41". In this embodiment, the first surface 41 is a virtual surface because it is open as a whole. Note that the first surface 41 does not have to be open as a whole.

[0025] [Regarding the direction of the electrical junction box 10] In Case 11, the direction along one side of the first face 41 (the wider direction) is defined as the "left-right direction." The direction along the other side of the first face 41 (the narrower direction) is defined as the "up-down direction." The direction perpendicular to the left-right and up-down directions is defined as the "front-back direction."

[0026] Each figure shows the orthogonal coordinates for the X, Y, and Z directions. The left-right direction is parallel to the X direction, the front-back direction is parallel to the Y direction, and the up-down direction is parallel to the Z direction. The first surface 41 does not have to be a strict rectangle. In this embodiment, the first surface 41 has an uneven surface but is elongated along one direction (left-right direction). The longest side of the smallest rectangle virtually enclosing the first surface 41 is the "left-right direction". The shortest direction of the rectangle is the "up-down direction".

[0027] Note that the aforementioned up-down direction, left-right direction, and up-down direction are directions defined for the purpose of explaining the configuration of the electrical junction box 10, and do not actually refer to the "up-down direction (vertical up-down direction)", "left-right direction (horizontal left-right direction)", and "front-back direction (horizontal front-back direction)" when the electrical junction box 10 is mounted on a vehicle such as an automobile.

[0028] [Regarding circuit section 16] In Figure 2, a circuit section 16 including busbars 12 is provided inside the case 11. In addition to including a plurality of busbars 12 for forming a branch circuit, the circuit section 16 also includes an overcurrent protection element (fuse) and a circuit board, etc., although these are not shown. The circuit section 16 is provided between the first case 13 and the second case 14.

[0029] [Regarding wire harnesses, etc.] The electrical junction box 10 includes a wire harness for electrically connecting the circuit section 16 to other equipment outside the case 11. In this embodiment, the electrical junction box 10 includes a first wire harness 17 and a second wire harness 18. The first wire harness 17 is an input wire harness electrically connected to a power supply (battery) not shown. The second wire harness 18 is an output wire harness electrically connected to a load device (motor). Both the first wire harness 17 and the second wire harness 18 are for high voltage applications.

[0030] The first wire harness 17 has two positive and negative wires 17a and 17b, a first connector 26, and a metal first shield shell 31. The wires 17a and 17b are connected to the circuit section 16 through the first connector 26. The second wire harness 18 has two positive and negative wires 18a and 18b, a second connector 27, and a metal second shield shell 32. The wires 18a and 18b are connected to the circuit section 16 through the second connector 27. As shown in Figure 3, the first shield shell 31 is fixed to the case 11 (first case 13) by fixing bolts 56 and nuts, and the first wire harness 17 is fixed to the case 11. The second shield shell 32 is fixed to the case 11 (first case 13) by fixing bolts 57 and nuts, and the second wire harness 18 is fixed to the case 11.

[0031] Other devices outside of case 11 include, in addition to the battery and motor, load devices such as air conditioners, heaters, and control units. The electrical junction box 10 further comprises a third wire harness 19 and a fourth wire harness 20. The third wire harness 19 and the fourth wire harness 20 are connected to other load devices (such as air conditioners and heaters) outside the case 11. The third wire harness 19 has two positive and negative wires 19a and 19b and a third connector 28. The wires 19a and 19b are fixed to the case 11 (first case 13) by the third connector 28 and electrically connected to the circuit section 16. The fourth wire harness 20 has two positive and negative wires 20a and 20b and a fourth connector 29. The wires 20a and 20b are fixed to the case 11 (first case 13) by the fourth connector 29 and electrically connected to the circuit section 16. The third wire harness 19 and the fourth wire harness 20 are for low voltage.

[0032] [Regarding the first terminal 21 and the second terminal 22] The electrical junction box 10 has a first terminal 21 and a second terminal 22 (see Figures 2 and 3). The first terminal 21 supports a first wire 23 that is electrically connected to the circuit section 16. The second terminal 22 supports a second wire 24 that is electrically connected to the circuit section 16.

[0033] The first wire 23 is a wire for outputting power from the circuit section 16 to another load device outside the case 11 (such as the first control unit). The first wire 23 has two positive and negative wires 23a and 23b and a fifth connector 35. The fifth connector 35 is mounted on the second case 14, and the wires 23a and 23b are electrically connected to the circuit section 16.

[0034] The second wire 24 is a wire for outputting power from the circuit section 16 to another load device outside the case 11 (such as a second control unit). The second wire 24 has two positive and negative wires 24a and 24b and a sixth connector 36. The sixth connector 36 is mounted on the second case 14, and the wires 24a and 24b are electrically connected to the circuit section 16.

[0035] The first wire 23 and the second wire 24 are for low voltage. The first wire 23 has a shield, not shown in the figure, that covers two wires 23a and 23b outside the case 11. The shield is made of braided wire. The shield is electrically connected to the first terminal 21, which also functions as a ground terminal. The second wire 24 has a shield, not shown in the figure, that covers two wires 24a and 24b outside the case 11. The shield is made of braided wire. The shield is electrically connected to the second terminal 22, which also functions as a ground terminal.

[0036] [Regarding the electrical junction box 10] With the above configuration, the current input from the first wire harness 17 to the electrical junction box 10 is distributed through the second wire harness 18, the third wire harness 19, the fourth wire harness 20, the first wire 23, and the second wire 24, respectively, and output to multiple load devices.

[0037] The first shield shell 31 and the second shield shell 32 are positioned on the first surface 41, which is the front side of the case 11. The first wire harness 17 and the second wire harness 18 pass through the first surface 41, which is the front side of the case 11, in the front-to-back direction. The first terminal 21 and the second terminal 22 are located on the first surface 41, which is the front side of the case 11. The first wire 23 and the second wire 24 pass through the first surface 41, which is the front side of the case 11, in the front-to-back direction.

[0038] In the case of the electrical junction box 10 of this embodiment (see Figures 2 and 5), the first shield shell 31, which is part of the first wire harness 17, the second shield shell 32, which is part of the second wire harness 18, the first terminal 21, and the second terminal 22 are arranged closer to the first surface 41 side (i.e., the front side) of the case 11.

[0039] The first terminal 21 and the second terminal 22 are concentrated and arranged in the first region K1, which is one side in the left-right direction (the right side in Figures 2 and 5). More specifically, the first terminal 21 and the second terminal 22 are located in the first region K1, which is one side in the left-right direction, with reference to a part of the first wire harness 17 (first shield shell 31) and a part of the second wire harness 17 (second shield shell 32). The first shield shell 31, located on the other side in the left-right direction (the left side in Figures 2 and 5), is close to a part of the case 11 (the left side wall 11L). No wires or terminals supporting those wires are located between the first shield shell 31 and the side wall 11L.

[0040] [Regarding the arrangement of the first terminal 21 and the second terminal 22] As shown in Figure 4, the first terminal 21 is located above the second terminal 22. As shown in Figure 3, the case 11 (first case 13) has a first bottom 37 for mounting the first terminal 21 and a second bottom 38 for mounting the second terminal 22 in the first region K1. The first bottom 37 rises above the second bottom 38. The first bottom 37 and the second bottom 38 are provided as separate regions in the front-to-back direction. Space is secured for mounting the first terminal 21 (first bottom 37) and space is secured for mounting the second terminal 22 (second bottom 38).

[0041] The second bottom portion 38 is a part that rises above the bottom plate 13b of the first case 13, where the circuit section 16 is provided. The second bottom portion 38 is located above the second case 14. The first terminal 21 is attached to the first bottom portion 37, and the second terminal 22 is attached to the second bottom portion 38. As a result, the first terminal 21 and the second terminal 22 are in different positions relative to each other in the vertical direction within the first region K1.

[0042] Figure 6 is an enlarged perspective view of the first terminal 21 and the second terminal 22. The case 11 has a first bolt 42 that protrudes upward and is attached to the first bottom 37 in the first region K1. The case 11 has a second bolt 44 that protrudes upward and is attached to the second bottom 38. The case 11 has a first nut 43 that fastens with the first bolt 42 and a second nut 45 that fastens with the second bolt 44.

[0043] The first terminal 21 is a flag terminal. The first terminal 21 has two first support parts 46 and one first fixing part 47. The second terminal 22 is a flag terminal. The second terminal 22 has two second support parts 48 and one second fixing part 49. The first terminal 21 and the second terminal 22 are fixed to the first case 13 by a first nut 43 and a second nut 45, respectively. The fixing structure will be described below.

[0044] The first fixing part 47 is made of a plate and has a hole 47a through which the first bolt 42 passes. The first fixing part 47 is placed on the first bottom part 37, and with the first bolt 42 passing through the hole 47a, the first nut 43 is tightened onto the first bolt 42. This fixes the first fixing part 47 to the first bottom part 37. Since one first fixing part 47 and two first support parts 46 are integrated, the first support parts 46 are fixed to the case 11 (first bottom part 37) by the first fixing part 47.

[0045] The first terminal 21 has a stopper portion 59. The stopper portion 59 is a part that extends downward from the front of the first fixing portion 47. The stopper portion 59 can contact the front surface 13a (see Figure 5), which is part of the case 11 (first case 13), toward the rear. The stopper portion 59 positions the first terminal 21.

[0046] In Figure 6, the second fixing part 49 is made of a plate and has a hole 49a through which the second bolt 44 passes. The second fixing part 49 rests on the second bottom part 38, and with the second bolt 44 passing through the hole 49a, the second nut 45 is tightened onto the second bolt 44. This fixes the second fixing part 49 to the second bottom part 38. Since one second fixing part 49 and two second support parts 48 are integrated, the second support parts 48 are fixed to the case 11 (second bottom part 38) by the second fixing part 49.

[0047] As shown in Figure 6, the two first support parts 46 support the two wires 23a and 23b of the first electric wire 23 side by side in the left-right direction (X direction). In contrast, the second support part 48 supports the two wires 24a and 24b of the second electric wire 24 side by side in the up-down direction (Z direction). The first support part 46 has a cylindrical portion through which the first electric wire 23 passes. The second support part 48 also has a cylindrical portion through which the second electric wire 24 passes. As shown in Figure 4, the second support part 48 is positioned closer to the second shield shell 32 in the left-right direction than the first support part 46.

[0048] As shown in Figure 5, the first fixing part 47 and the second fixing part 49 are located at different positions relative to each other in the left-right direction (X direction) within the first region K1. Specifically, the first fixing part 47 is located on one side in the left-right direction (to the right in Figure 5) that is further away from the second shield shell 32 than the second fixing part 49. The first terminal 21 and the second terminal 22 are located at different positions relative to each other in the front-to-back direction (Y direction) within the first region K1. Specifically, the first terminal 21 is located further forward than the second terminal 22, towards the opening 40.

[0049] [Regarding the arrangement of the first wire 23 and the second wire 24] As shown in Figures 2, 3, and 5, the first wire 23 and the second wire 24 are provided along the right side wall 11R of the case 11. In the portion of the case along the side wall 11R, the first wire 23 is positioned above the second wire 24. The two wires 23a and 23b of the first wire 23 are bundled together with tape (not shown). The two wires 24a and 24b of the second wire 24 are bundled together with tape (not shown).

[0050] Within the case 11, the electrical junction box 10 is equipped with a mounting member 50 to prevent interference between the first wire 23 and the second wire 24. The mounting member 50 is provided on the side wall 11R and protrudes into the case 11. In this embodiment, the mounting member 50 supports the first wire 23 (two wires 23a and 23b). The mounting member 50 prevents the two wires 23a and 23b from being displaced in the vertical and horizontal directions.

[0051] In this embodiment, the second wire 24 (two wires 24a and 24b) is not supported by a mounting member. However, although not shown, the second wire 24 may also be supported by a mounting member provided on the side wall 11R. In other words, the mounting member 50 supports at least one of the first wire 23 and the second wire 24, and allows that one wire to be routed along the wall (side wall 11R) of the case 11.

[0052] [Regarding the electrical connection box 10 of this embodiment] As described above, the electrical connection box 10 of this embodiment comprises a case 11, a circuit section 16 provided inside the case 11, wire harnesses 17 and 18 for electrically connecting the circuit section 16 to other equipment outside the case 11, a first terminal 21, and a second terminal 22. The first terminal 21 supports a first wire 23 that is electrically connected to the circuit section 16. The second terminal 22 supports a second wire 24 that is electrically connected to the circuit section 16. The shield shells 31 and 32, which are part of the wire harnesses 17 and 18, the first terminal 21, and the second terminal 22 are arranged on the first surface 41 side of the case 11.

[0053] The first terminal 21 and the second terminal 22 are located in the first region K1, which is one side (right side in the case of Figure 2) in the left-right direction relative to the shield shells 31 and 32. The first terminal 21 and the second terminal 22 are concentrated in the first region K1. According to the electrical junction box 10 of this embodiment, it is possible to miniaturize the electrical junction box 10 in the left-right direction compared to the conventional technology shown in Figure 7. Moreover, the first terminal 21 and the second terminal 22 are located in different positions in the up-down direction relative to each other in the first region K1. Therefore, interference between the first wire 23 and the second wire 24 is prevented within the case 11.

[0054] As shown in Figure 6, the first terminal 21 has a first support portion 46, which supports the first electric wire 23 (wires 23a, 23b) arranged in the left-right direction. In contrast, the second terminal 22 has a second support portion 48, which supports the second electric wire 24 (wires 24a, 24b) arranged in the up-down direction. As shown in Figure 4, the second support portion 48 is located closer to the second shield shell 32 in the left-right direction than the first support portion 46.

[0055] The second support section 48 supports the second electric wire 24 (wires 24a, 24b) in the vertical direction, so the second terminal 22 is easily positioned close to the second shield shell 32 in the horizontal direction. The first support section 46 supports the first electric wire 23 (wires 23a, 23b) in the horizontal direction. Therefore, compared to the case where the two electric wires 23a and 23b are arranged vertically, the required vertical dimension of the first region K1 is reduced. This makes it possible to miniaturize the electrical junction box 10 in the vertical direction. Furthermore, the first support section 46 and the second support section 48 are located in different positions in the vertical direction, preventing interference between the first electric wire 23 and the second electric wire 24.

[0056] The first terminal 21 has a first fixing part 47 that fixes the first support part 46 to the case 11. The second terminal 22 has a second fixing part 49 that fixes the second support part 48 to the case 11. As shown in Figure 5, the first fixing part 47 and the second fixing part 49 are located at different positions in the left-right direction in the first region K1. In this embodiment, as described above, the first terminal 21 is located above the second terminal 22. With this configuration, the first electric wire 23 passes through the space above the second fixing part 49, making effective use of that space. Moreover, the first electric wire 23 (wires 23a, 23b) is supported by the first terminal 21, aligned in the left-right direction, contributing to the miniaturization of the electrical connection box 10 in the vertical direction.

[0057] In this embodiment in particular, the first terminal 21 and the second terminal 22 are flag terminals. The case 11 has a tray-shaped first case 13 that opens upward. The case 11 has a first bolt 42 and a second bolt 44 that protrude upward. The case 11 has a first nut 43 and a second nut 45 that fasten with the first bolt 42 and the second bolt 44. The first terminal 21 (first fixing part 47) and the second terminal 22 (second fixing part 49) are fixed to the first case 13 by the first nut 43 and the second nut 45, respectively.

[0058] In this embodiment, the first terminal 21 and the second terminal 22 are attached to the case 11 from above. The first terminal 21 and the second terminal 22 are located at different positions relative to each other in the front-to-back direction within the first region K1. This configuration ensures that there is space for the first terminal 21 to be attached (first bottom 37) and space for the second terminal 22 to be attached (second bottom 38). The first fixing part 47 and the second fixing part 49 do not overlap in the vertical direction, making the installation process easier.

[0059] As described above, in this embodiment, the first terminal 21 and the second terminal 22 are concentrated in the first region K1. The second support portion 48, which is close to the second shield shell 32, supports the second electric wire 24 (two electric wires 24a and 24b) arranged vertically. In contrast, the first support portion 46, which is located above the second support portion 48, supports the first electric wire 23 (two electric wires 23a and 23b) arranged horizontally. Furthermore, the first fixing portion 47 and the second fixing portion 49 are located in different positions relative to each other in the horizontal and vertical directions. According to this embodiment, it is possible to miniaturize the electrical connection box 10 in the horizontal and vertical directions, and moreover, interference between each part is prevented, and the installation of the first terminal 21 and the second terminal 22 to the case 11 is made easier.

[0060] 〔others〕 In this embodiment, the electrical junction box 10 has a second wire harness 18, but the second wire harness 18 may be omitted. In this case, the first terminal 21 and the second terminal 22 are located in the first region K1, which is one side in the left-right direction with respect to a part of the first wire harness 17 (first shield shell 31). One or both of the third wire harness 19 and the fourth wire harness 20 may be omitted.

[0061] In the first region K1, we have described the case where the first terminal 21 is in the upper position and the second terminal 22 is in the lower position. However, the first terminal 21 may be in the lower position and the second terminal 22 may be in the upper position. In other words, the first terminal 21 and the second terminal 22 may be in different positions relative to each other in the vertical direction.

[0062] In this embodiment, the first terminal 21 and the second terminal 22 are flag terminals, but have different shapes. The first terminal 21 and the second terminal 22 may have the same shape. The case where the first terminal 21 and the second terminal 22 are flag terminals has been described, but they may also be terminals with other shapes. The description above describes an electrical junction box 10 having a mounting member 50 inside that supports the electric wire (first electric wire 23), but the mounting member 50 may be omitted.

[0063] The embodiments described above are illustrative and not restrictive in all respects. The scope of the present invention is indicated by the claims rather than by the embodiments, and includes all modifications within the scope equivalent to the configurations described in the claims. [Explanation of symbols]

[0064] 10. Electrical junction box 11 cases 11L side wall 11R side wall 12 Bass Bar 13. Case 1 13a front 13b Bottom plate 14. Second Case 15 Cover 16 Circuit section 17 First Wire Harness 17a,17b Electric wire 18. Second Wire Harness 18a,18b electric wire 19. Third wire harness 19a,19b Electric wire 20 Fourth Wire Harness 20a,20b electric wire 21 First terminal 22 Second terminal 23 Daiichi Electric Cable 23a,23b Electric wire 24 Second electric wire 24a,24b electric wire 26 First Connector 27 Second connector 28 Third connector 29 Fourth connector 31 First Shield Shell 32 Second Shield Shell 35 Fifth Connector 36 Sixth Connector 37 First bottom 38 Second bottom 40 openings 41 Front page 42 First bolt 43 First nut 44 Second bolt 45 Second nut 46 First support part 47 First fixed part 47a Hole 48 Second support part 49 Second fixed part 49a Hole 50 Mounting components 56 Fixing bolts 57 Fixing bolts 59 Stopper section K1 First area

Claims

1. The case and, The circuit section provided inside the case, A wire harness for electrically connecting the circuit section to another device outside the case, A first terminal supporting the first electric wire that is electrically connected to the aforementioned circuit section, A second terminal supporting a second wire electrically connected to the aforementioned circuit section, Equipped with, An electrical connection box in which a part of the wire harness, the first terminal, and the second terminal are arranged on the first side of the case, If we define the direction along one side of the first face as the left-right direction, and the direction along the other side of the first face as the up-down direction, The first terminal and the second terminal are located in a first region which is in one of the left-right directions, with reference to the part of the wire harness. The first terminal and the second terminal are located in different positions relative to each other in the vertical direction within the first region. Electrical junction box.

2. The first terminal has a first support portion that supports the first electric wires arranged in the left-right direction, The second terminal has a second support portion that supports the second electric wires arranged in the vertical direction, The electrical connection box according to claim 1, wherein the second support portion is positioned closer to the part of the wire harness in the left-right direction than the first support portion.

3. The first terminal has a first fixing portion that fixes the first support portion to the case, The second terminal has a second fixing portion that fixes the second support portion to the case, The electrical connection box according to claim 2, wherein the first fixing portion and the second fixing portion are located at different positions relative to each other in the left-right direction within the first region.

4. If the direction perpendicular to the left-right direction and the up-down direction is defined as the front-back direction, The electrical connection box according to any one of claims 1 to 3, wherein the first terminal and the second terminal are located at different positions relative to each other in the front-to-back direction within the first region.

5. The case comprises a tray-shaped first case opening in one of the vertical directions, a first bolt and a second bolt protruding from the first case in one of the vertical directions, and a first nut and a second nut fastening the first bolt and the second bolt. The electrical connection box according to claim 4, wherein the first terminal and the second terminal are each fixed to the first case by the first nut and the second nut, respectively.

6. An electrical junction box according to any one of claims 1 to 3, comprising a mounting member that supports at least one of the first wire and the second wire and allows the one wire to be routed along the wall of the case.

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