Electrical junction box

Abstract

An electrical junction box includes a frame body, a rescue terminal portion formed in a cuboid shape in a plan view and including a longitudinal side, two lateral sides connected to the longitudinal side, and an upper side, and a resin cover configured to cover the longitudinal side, the two lateral sides, and the upper side. The resin cover includes a rotation shaft extending along the longitudinal side and disposed on a side on which the longitudinal side is disposed and on a base end portion of the rescue terminal portion opposite the upper side, the resin cover being configured to rotate relative to the frame body about the rotation shaft.

Description

Technical Field

[0001] The subject matter currently disclosed pertains to an electrical junction box. Background Technology

[0002] Electrical junction boxes in the related art include a box with a rescue terminal portion that allows connection of a boost cable for power supply when the battery is depleted (see, for example, JP 2015-80342A). The boxes disclosed in the related art and electrical junction boxes including such boxes have an electronic component attachment portion and a rescue terminal attachment portion on the box (receptacle portion). The electronic component can be attached to the electronic component attachment portion, and the rescue terminal, formed of a metal plate, can be attached to the rescue terminal attachment portion, which is detachable from the frame body of the electrical junction box. One of the rescue terminal, a cover covering the rescue terminal, and the electronic component is selected and attached to the box, and while one is attached, the others cannot be attached.

[0003] However, in the electrical junction box of the aforementioned related technology, the rescue terminal attachment portion, which is formed in a cuboid shape in the plan view, is covered by a cover that is also formed in a cuboid shape in the plan view. A shaft portion, arranged along the lateral direction of the cover, is rotatably attached to the shaft portion attachment portion of the cover attachment portion provided in the electrical junction box. Therefore, the radius of rotation from the shaft portion of the cover to the rotating end of the cover is the longer side of a rectangle, requiring a large space for opening and closing the cover. Furthermore, in the rotary hinge structure including the shaft portion and the shaft portion attachment portion for rotatably supporting the cover, since the rotation shaft is arranged in the lateral direction of the cover, during the opening and closing operation of the cover, due to the lever principle, the force in the torsional direction acting on the shaft portion tends to increase, and there is a concern that the cover may not be detached from the shaft portion attachment portion. Summary of the Invention

[0004] The illustrative aspect of the currently disclosed subject matter provides an electrical junction box in which the resin cover covering the rescue terminal portion is unlikely to fall off, while the space for opening and closing the resin cover is reduced.

[0005] According to the illustrative aspects of the currently disclosed subject matter, the electrical junction box includes: a frame body; a rescue terminal portion, which is formed in a cuboid shape in plan view and includes a longitudinal side, two transverse side connected to the longitudinal side, and a top surface; and a resin cover configured to cover the longitudinal side, the two transverse side, and the top surface. The resin cover includes a rotation axis extending along the longitudinal side and disposed on the side where the longitudinal side is disposed and on the base portion of the rescue terminal portion opposite the top surface. The resin cover is configured to rotate relative to the frame body about the rotation axis.

[0006] Based on the electrical junction box of the currently disclosed subject, the resin cover covering the rescue terminal section is unlikely to fall off, and the space for opening and closing the resin cover is reduced.

[0007] Other aspects and advantages of the subject matter disclosed herein will become apparent from the following description, accompanying drawings and claims. Attached Figure Description

[0008] Figure 1 This is an exploded perspective view of the main parts of an electrical junction box according to an embodiment of the currently disclosed subject matter;

[0009] Figure 2 This is a perspective view of the rescue terminal portion covered by a resin cap;

[0010] Figure 3 This is a perspective view of the rescue terminal portion exposed when the resin cap is rotated to the open position via the rotating hinge structure;

[0011] Figure 4 This is an exploded perspective view of the socket section and the rescue terminal section of the main frame;

[0012] Figure 5 This is a perspective view of the rescue terminal section and resin cover separated from the main frame body;

[0013] Figure 6 This is an exploded perspective view showing the rescue terminal section separated from the socket section;

[0014] Figure 7 This is an exploded perspective view of the rescue terminal section and the resin cover;

[0015] Figure 8 This is a perspective view of the rescue terminal section with the resin cover rotated to the fully open position;

[0016] Figure 9 This is a perspective view of the rescue terminal portion covered with a resin cap, viewed from an obliquely upward angle;

[0017] Figure 10 This is a perspective view of the rescue terminal section with the rotation axis of the resin cover removed from the bearing portion of the terminal support plate; and

[0018] Figure 11 This is a side view of the resin cap in contact with the locking claw of the locking arm just before it is fully opened. Detailed Implementation

[0019] In the following description, embodiments based on the currently disclosed subject matter will be described with reference to the accompanying drawings. Figure 1This is an exploded perspective view of the main parts of an electrical junction box 11 according to an embodiment of the currently disclosed subject matter. For example, a "fuse block" in which a large number of fuses can be inserted and removed is used in vehicle power lines to protect the circuits of various electronic devices. Because a fuse block can have relays, it is also referred to as a "relay box" or "junction block." In this specification, fuse blocks, relay boxes, and junction blocks are collectively referred to as electrical junction box 11.

[0020] The electrical junction box 11 according to this embodiment includes a frame body 13 forming a housing, a busbar (not shown) integrally formed with the frame body 13, a lower cover 14 covering the lower opening of the frame body 13, an upper cover (not shown) covering the upper opening of the frame body 13, and a rescue terminal portion 17. A plurality of mounting portions 15 are provided on, for example, the upper surface of the frame body 13, to which electrical components such as relays, fuses, fusible links, and wire harness connection sockets are mounted. Each mounting portion 15 is provided with a terminal portion (not shown) formed by bending or cutting a plate-shaped busbar. The terminal portions provided in the mounting portions 15 are electrically connected to power-side terminals of power-side terminals and load-side terminals of relays, fuses, fusible links, wire harness connection sockets, etc., mounted on the mounting portions 15.

[0021] The electrical junction box 11 according to this embodiment includes a frame body 13 and a rescue terminal portion 17. The rescue terminal portion 17 is detachably mounted on a socket portion 19 of the frame body 13. In this embodiment, the socket portion 19 is detachably mounted on a mounting portion 15 of the frame body 13. The socket portion 19 may be integrally formed with the frame body 13. Hereinafter, the socket portion 19 will be described as part of the electrical junction box 11 integrated with the frame body 13.

[0022] Figure 2 This is a perspective view of the rescue terminal portion 17 covered by the resin cover 21. The rescue terminal portion 17, mounted on the connector mounting portion 23 of the frame body 13 (receptacle portion 19), is formed in a cuboid shape in the plan view. The rescue terminal portion 17 is covered by the resin cover 21, with a portion of the rescue terminal portion 17 exposed. The resin cover 21 is rotatably attached to the rescue terminal portion 17 via a rotating hinge structure. The resin cover 21... Figure 2 The closed position shown covers the rescue terminal section 17.

[0023] Figure 3 This is a perspective view of the rescue terminal portion 17 exposed when the resin cover 21 is rotated to the open position via the rotating hinge structure. The resin cover 21 covers a longitudinal side 25, two transverse sides 27 adjacent to the longitudinal side 25, and the upper surface 29 of the rescue terminal portion 17.

[0024] like Figure 3As shown, when the resin cover 21 is in the open position, the rescue terminal portion 17 is exposed, and a plate-shaped rescue terminal 31 is provided on the longitudinal side 25. The rescue terminal 31 is supported by a terminal support plate 33 made of insulating resin, which is erected perpendicular to the frame body 13. That is, in the rescue terminal portion 17, the rescue terminal 31 and the terminal support plate 33 are stacked in the plate thickness direction, and the rescue terminal 31 is exposed on one side of the terminal support plate 33. The rescue terminal portion 17 is clamped from the plate thickness direction by a clamping portion 35 (opening) made of conductive metal, which is closed by spring force, and the rescue terminal 31 is electrically connected to a boost cable (not shown).

[0025] Figure 4 This is an exploded perspective view of the socket portion 19 and the rescue terminal portion 17 of the frame body 13. An insertion portion 37 formed on a terminal support plate 33 in the rescue terminal portion 17 is detachably mounted on the socket portion 19 of the frame body 13. The rescue terminal portion 17 includes a pair of parallel electrical contact pieces 41, which are bent perpendicular to the two side edges of the terminal base portion 39 of the rescue terminal 31. In the rescue terminal 31, the terminal end portion 43, excluding the terminal base portion 39, is inserted into a slit hole 45 formed in the terminal support plate 33 and held by the terminal support plate 33.

[0026] In the rescue terminal portion 17, where the rescue terminal 31 and terminal support plate 33 are integrated, when the insertion portion 37 is mounted on the connector mounting portion 23, the pair of electrical contact pieces 41 are electrically connected to the tuning fork terminal assembly 47 disposed in the housing of the socket portion 19. In the tuning fork terminal assembly 47, multiple pairs of tuning fork terminals 49, formed by pairs of retaining pieces that clamp the electrical contact pieces 41 of the rescue terminal 31 from the plate thickness direction, are formed in a plate shape. In the tuning fork terminal assembly 47, the socket portion 19 is mounted on the frame body 13 such that a strip-shaped power receiving terminal portion 48 formed at one end portion in the arrangement direction of the tuning fork terminals 49 is electrically connected to a busbar (not shown) on the side of the frame body 13.

[0027] like Figure 3 As shown, Figure 4 The locking arm 51 shown is locked to the engagement recess portion 57 (see...) Figure 6 This restricts the removal of the rescue terminal portion 17, which is mounted on the socket portion 19 of the frame body 13, from the connector mounting portion 23.

[0028] Figure 5This is a perspective view of the rescue terminal portion 17 and resin cover 21 separated from the frame body 13. A locking arm 51 is formed on the side of the insertion portion 37. The locking arm 51 is configured to be parallel to and flush with the side of the insertion portion 37 by inserting a pair of parallel cuts into it. The locking arm 51 has a cantilever shape, wherein the base end of the rescue terminal portion 17 on the lower side in the mounting direction is connected to the side of the insertion portion 37, and the end portion on the opposite side in the upper side in the mounting direction is a free end portion. A locking claw 53 is formed on the free end portion of the locking arm 51, which protrudes from a surface flush with the side of the insertion portion 37. That is, the locking claw 53 protrudes from the side of the insertion portion 37. When the locking claw 53 is pushed toward the insertion portion 37, the free end portion of the locking arm 51 elastically deforms and is pushed to a position where the locking claw 53 is flush with the side of the insertion portion 37. That is, in the normal state, the locking claw 53 protrudes from the side of the insertion portion 37.

[0029] Figure 6 This is an exploded perspective view of the rescue terminal portion 17 separated from the socket portion 19. For example, in the rescue terminal portion 17 with the resin cover 21 in the closed position, when the insertion portion 37 is mounted on the connector mounting portion 23, the locking claw 53 is pressed and pushed into the inner surface 55 of the connector mounting portion 23. Then, when the insertion portion 37 is inserted (mounted) to a predetermined position, the locking claw 53 shifts back to its original position by an elastic restoring force and locks into the engagement recess portion 57 formed in the inner surface 55 of the connector mounting portion 23. Therefore, the rescue terminal portion 17 is restricted from separating from the connector mounting portion 23. On the other hand, when the free end portion of the locking arm 51 is moved to a position flush with the side of the insertion portion 37 by using a clamp or the like, the engagement with the engagement recess portion 57 is released, and the insertion portion 37 can be separated from the connector mounting portion 23.

[0030] like Figure 4 As shown, the resin cap 21 includes a pair of coaxial rotation shafts 59 extending longitudinally along the base portion side of the longitudinal side 25. The resin cap 21 is rotatable about the rotation shafts 59 relative to the frame body 13 (i.e., the rescue terminal portion 17).

[0031] Figure 7 This is an exploded perspective view of the rescue terminal portion 17 and the resin cover 21. The terminal support plate 33 of the rescue terminal portion 17 includes a pair of bearing portions 61 on the upper surface of the insertion portion 37, through which the terminal end portion 43 passes, and the slit holes 45 in the bearing portions 61 are open. The pair of bearing portions 61 are spaced apart from each other at the positions supporting the pair of rotating shafts 59. The pair of rotating shafts 59 disposed in the resin cover 21 are both formed on the same end side ( Figure 7The shaft support portion 63 on the right end side of the bearing 59 is disposed in the resin cover 21. The pair of rotating shafts 59 are simultaneously inserted from the same direction of the pair of bearing portions 61 by sliding the shaft end portions on the side opposite to the shaft support portion 63. In the resin cover 21, the rotating shafts 59 are slidably inserted into the bearing portions 61, the shaft support portion 63 contacts the bearing portion 61, and further sliding is restricted.

[0032] Figure 8 This is a perspective view of the rescue terminal portion 17 with the resin cover 21 rotated to the fully open position. When the resin cover 21 is installed on the rescue terminal portion 17, the resin cover 21 is in the closed position ( Figure 2 Rotate to the open position (as shown) Figure 3 As shown in the figure, this open position is approximately 90 degrees. Furthermore, after the rescue terminal portion 17 separates from the frame body 13, the resin cover 21 can be further rotated approximately 90 degrees to a position where the resin cover 21 contacts the side of the insertion portion 37 (fully open position), as shown. Figure 8 As shown. That is, with the rescue terminal portion 17 separated from the frame body 13, the range of rotation angle of the resin cover 21 from the closed position to the fully open position is approximately 180 degrees.

[0033] Figure 9 This is a perspective view of the rescue terminal portion 17 covered by the resin cap 21, viewed from an obliquely upward angle. A sliding restraint protrusion 65 is formed on one side of the resin cap 21. Figure 9 The shaft support portion 63 on the left side and the other side (in the middle) Figure 9 Between the shaft support portions 63 on the right side of the resin cover 21. On one side ( Figure 9 A reinforcing plate portion 67 is formed between the shaft support portion 63 (left side) and the sliding limiting protrusion 65. On the other hand, in the terminal support plate 33 of the rescue terminal portion 17, a stop protrusion 69 is formed on the upper surface of the insertion portion 37. This stop protrusion 69 contacts the sliding limiting protrusion 65 to restrict the resin cap 21 from moving towards... Figure 9 Slide to the right in the middle.

[0034] exist Figure 9 In the closed position shown, the sliding limiting protrusion 65 of the resin cover 21 contacts the stop protrusion 69, and sliding is restricted. Furthermore, even in the resin cover 21... Figure 5 In the open position shown by rotating 90 degrees, the sliding limiting protrusion 65 also contacts the stop protrusion 69, and the sliding is restricted. That is, with the rescue terminal portion 17 mounted on the frame body 13, the resin cover 21 contacts the socket portion 19 of the frame body 13, and only rotates 90 degrees to the open position, therefore, the sliding of the resin cover 21 remains restricted.

[0035] Here, the rotating hinge structure for rotatably holding the resin cap 21 allows the resin cap 21 to be attached to and detached from the rescue terminal portion 17 only in the fully open position (rotated 180 degrees). That is, as Figure 8 As shown, the resin cap 21 is moved to a position where the sliding limiting protrusion 65 does not interfere with the stop protrusion 69 when rotated 180 degrees from the closed position.

[0036] Figure 10 This is a perspective view of the rescue terminal portion 17 with the rotation axis 59 of the resin cover 21 removed from the bearing portion 61 of the terminal support plate 33. (See image) Figure 10 As shown, since the sliding limiting protrusion 65 does not interfere with the stop protrusion 69 in the fully open position, the resin cover 21 can slide in the direction in which the rotating shaft 59 is pulled out from the bearing portion 61. Figure 7 As shown, the resin cap 21, from which the rotating shaft 59 is removed from the bearing portion 61, can be removed from the rescue terminal portion 17. It should be noted that the attachment of the resin cap 21 to the rescue terminal portion 17 can be performed in the reverse of the process of removing the resin cap 99 from the fully open position.

[0037] Figure 11 This is a side view showing the resin cover 21 in contact with the locking pawl 53 of the locking arm 51 immediately before reaching the fully open position. When the resin cover 21 is about to rotate to the fully open position, it contacts the locking pawl 53 of the locking arm 51 immediately before reaching the fully open position, and the rotation of the resin cover 21 to the fully open position is restricted. That is, when the resin cover 21 is in the position of... Figure 11 When the locking claw 53 is in the rotated position, the sliding limiting protrusion 65 is still in contact with the stop protrusion 69, and the sliding is restricted.

[0038] In other words, the locking arm 51, which detachably holds the rescue terminal portion 17 relative to the frame body 13, is used to hold the resin cover 21 in a position immediately before it is fully open.

[0039] Because the locking arm 51 has the elasticity described above, it can be pushed until the locking claw 53 is flush with the side of the insertion portion 37. Therefore, the resin cover 21, which is restricted from sliding and held in the fully open position, can be slid by pushing the locking claw 53 and rotating it to the fully open position. That is, the resin cover 21 can be removed.

[0040] Next, the function of the above configuration will be described. In the electrical junction box 11 according to this embodiment, the frame body 13 includes a rescue terminal portion 17. The clamping portion 35 of the boost cable can be connected to the rescue terminal portion 17. Although in this embodiment the rescue terminal portion 17 can be separated from the frame body 13, the rescue terminal portion 17 may not be separated from the frame body 13. The rescue terminal portion 17 includes a resin cover 21. The resin cover 21 can cover a longitudinal side 25, two transverse sides 27 adjacent to the longitudinal side 25, and the upper surface 29 of the rescue terminal portion 17.

[0041] The resin cover 21 is rotatable relative to the frame body 13 about a rotation axis 59, which extends longitudinally on the base end side opposite the upper surface 29 of a longitudinal side 25. That is, by rotating relative to the frame body 13 about the rotation axis 59, the resin cover 21 rotates between a closed position where the resin cover 21 covers the rescue terminal portion 17 and an open position where the rescue terminal portion 17 is exposed (open and closed).

[0042] In the electrical junction box 11 according to this embodiment, the rotation axis 59 of the resin cover 21 extends along the longitudinal direction of the rescue terminal portion 17 having a cuboid shape, such that the rotation radius of the resin cover 21 around the rotation axis 59 is smaller than that of the rotation hinge structure of the related art, where the rotation axis 59 is located in the transverse direction of the rescue terminal portion 17. In other words, in the electrical junction box 11 according to this embodiment, the opening and closing space of the resin cover 21 can be smaller than that of the structure in the related art.

[0043] Furthermore, in the rotary hinge structure of the electrical junction box 11 according to this embodiment, the rotation shaft 59 is disposed in the longitudinal direction of the resin cover 21, such that during the opening and closing operation of the resin cover 21, the force in the torsional direction acting on the rotation shaft 59 is reduced by the lever principle. As a result, the rotation shaft 59 of the resin cover 21 is less likely to detach from the frame body 13.

[0044] In the electrical junction box 11 according to this embodiment, the resin cover 21 can only be attached to and detached from the rescue terminal portion 17 in the fully open position. In the electrical junction box 11, as described above, the resin cover 21 rotates between a closed position where the resin cover 21 covers the rescue terminal portion 17 and an open position where the rescue terminal portion 17 is exposed. The resin cover 21 rotates further from the open position where the rescue terminal portion 17 is exposed, such that the resin cover 21 is in the fully open position.

[0045] In the rescue terminal section 17, a rescue terminal 31 formed of a rectangular metal plate stands vertically from the frame body 13. One surface of the rescue terminal 31 is supported by a terminal support plate 33 made of insulating resin, which stands perpendicular to the frame body 13. In the rescue terminal section 17, the rescue terminal 31 and the terminal support plate 33 are stacked in the plate thickness direction, and the rescue terminal 31 is exposed on one side of the terminal support plate 33. The rescue terminal section 17 is clamped in the plate thickness direction by a clamping portion 35 made of conductive metal.

[0046] In the closed position, the resin cover 21 is parallel to the vertically erected rescue terminal portion 17 and covers the rescue terminal 31 exposed on one surface of the rescue terminal portion 17. When the resin cover 21 is rotated approximately 90 degrees from the closed position, the resin cover 21 contacts the frame body 13 and stops rotating. That is, rotation to the fully open position is restricted by the frame body 13 (receptacle portion 19). As a result, the resin cover 21 is unlikely to detach from the frame body 13 during opening and closing operations.

[0047] In the electrical junction box 11, when the locking arm 51 is released and the rescue terminal portion 17 is separated from the frame body 13, the resin cover 21 can be further rotated from the open position. Specifically, when the rescue terminal portion 17 is mounted on the frame body 13, the resin cover 21 rotates approximately 90 degrees from the closed position to the open position. After the rescue terminal portion 17 is separated from the frame body 13, the resin cover 21 can be further rotated 90 degrees to a position where the resin cover 21 contacts the side of the insertion portion 37 (fully open position).

[0048] Here, as Figure 11 As shown, the resin cover 21 contacts the locking claw 53 provided on the locking arm 51, thus limiting further rotation of the resin cover 21 immediately before reaching the fully open position. That is, even after the rescue terminal portion 17 is separated from the frame body 13, the resin cover 21 will not reach the fully open position by abutting against the locking claw 53, so that the resin cover 21 will not fall off the rescue terminal portion 17.

[0049] To remove the resin cover 21 from the rescue terminal portion 17, the locking claw 53 is pressed against the resin cover 21 to elastically deform the locking arm 51, and the resin cover 21 rotates to the fully open position, in which the resin cover 21 contacts the side of the insertion portion 37. Therefore, the resin cover 21 can be detached from the rescue terminal portion 17. In other words, the resin cover 21 can be removed from the rescue terminal portion 17. As a result, the resin cover 21 is unlikely to fall off in the electrical junction box 11, and it is unlikely to be lost.

[0050] Therefore, the electrical junction box 11 according to this embodiment can prevent the resin cover 21 from falling off, while reducing the opening and closing space of the resin cover 21.

[0051] According to one aspect of the above embodiment, the electrical junction box (11) includes a frame body (13), a rescue terminal portion (17), and a resin cover (21). The rescue terminal portion is formed in a cuboid shape in a plan view and includes a longitudinal side (25), two transverse side (27) connected to the longitudinal side (25), and a top surface (29). The resin cover is configured to cover the longitudinal side (25), the two transverse side (27), and the top surface (29). The resin cover (21) includes a rotation axis (59) extending along the longitudinal side (25) and disposed on the side where the longitudinal side (25) is disposed and on the base portion of the rescue terminal portion (17) opposite to the top surface (29). The resin cover (21) is configured to rotate about the rotation axis (59) relative to the frame body (13).

[0052] The electrical junction box (11) with the above-described structure includes a frame body (13) and a rescue terminal portion (17). The rescue terminal portion (17) may or may not be separated from the frame body (13). In the electrical junction box (11) with this structure, the rotation axis (59) of the resin cover (21) extends along the longitudinal direction of the rescue terminal portion (17) which has a cuboid shape, such that the rotation radius of the resin cover (21) about the rotation axis (59) is smaller than that of a rotation hinge structure in which the rotation axis (59) is arranged along the transverse direction of the rescue terminal portion (17). That is, in the electrical junction box (11) with this structure, the opening and closing space of the resin cover (21) can be smaller than that of structures in the related art. Furthermore, in the rotary hinge structure of the electrical junction box (11) with this configuration, the rotating shaft (59) is arranged along the longitudinal direction of the resin cover (21), such that during the opening and closing operation of the resin cover (21), the force in the torsional direction acting on the rotating shaft (59) is reduced by the lever principle. As a result, the rotating shaft (59) of the resin cover (21) is less likely to detach from the frame body (13).

[0053] The rotating hinge structure configured to rotatably hold the resin cap (21) can be configured to allow the resin cap (21) to be attached to and detached from the rescue terminal portion (17) only when the resin cap (21) is in the fully open position.

[0054] Using this construction, the resin cover (21) is rotatably held on the frame body (13) via a rotary hinge structure. In the rotary hinge structure, the resin cover (21) can only be attached to and separated from the rescue terminal portion (17) in the fully open position. The resin cover (21) rotates between a closed position where the resin cover (21) covers the rescue terminal portion (17) and an open position where the rescue terminal portion (17) is exposed. The resin cover (21) rotates further from the open position where the rescue terminal portion (17) is exposed, so that the resin cover (21) reaches the fully open position. In the closed position, the resin cover (21) is parallel to the vertically erected rescue terminal portion (17) and covers the rescue terminal (31) provided on one surface of the rescue terminal portion (17). When the resin cover (21) rotates approximately 90 degrees from the closed position, the resin cover (21) contacts the frame body (13) and no longer rotates. That is, rotation toward the fully open position is restricted by the frame body (13). As a result, the resin cap (21) is unlikely to detach from the frame body (13) due to opening and closing operations.

[0055] The locking arm (51), configured to detachably hold the rescue terminal portion (17) relative to the frame body (13), can be configured to hold the resin cover (21) in a position immediately before it is fully open.

[0056] Using this construction, the rescue terminal portion (17) is formed separately from the frame body (13). In the rescue terminal portion (17), the rescue terminal (31) and the terminal support plate (33) are stacked and integrated in the plate thickness direction. The insertion portion (37) formed on the terminal support plate (33) in the rescue terminal portion (17) is detachably mounted on the frame body (13). The locking arm (51) restricts the rescue terminal portion (17) from disengaging from the frame body (13). The locking arm (51) is formed on the side of the insertion portion (37). The locking arm (51) is arranged parallel to the side of the insertion portion (37) and flush with the side of the insertion portion (37). The locking arm 51 has a cantilever shape. The locking arm (51) is formed with a locking claw (53) protruding from the surface flush with the side of the insertion portion (37). When the locking claw (53) is pushed toward the insertion portion (37), the locking arm (51) elastically deforms and is pushed to a position where the locking claw (53) is flush with the side of the insertion portion (37). That is, in the normal state, the locking claw (53) protrudes from the side of the insertion portion (37). In the electrical junction box (11) with this structure, when the locking arm (51) is released and the rescue terminal portion (17) is separated from the frame body (13), the resin cover (21) can be further rotated from the open position. The resin cover (21) contacts the locking claw (53) provided on the locking arm (51), so further rotation of the resin cover (21) is limited to a position immediately before the fully open position. That is, even after the rescue terminal portion (17) is separated from the frame body (13), the resin cover (21) will not reach the fully open position by abutting against the locking claw (53), so that the resin cover (21) will not fall off the rescue terminal portion (17). In order to remove the resin cap (21) from the rescue terminal portion (17), the locking claw (53) is pressed by the resin cap (21) to cause the locking arm (51) to elastically deform, and the resin cap (21) is rotated to the fully open position, in which the resin cap (21) contacts the side of the insertion portion (37). Thus, the resin cap (21) can be separated from the rescue terminal portion (17).

[0057] Although the subject matter of the present disclosure has been described with reference to certain exemplary embodiments thereof, the scope of the subject matter of the present disclosure is not limited to the exemplary embodiments described above, and those skilled in the art will understand that various changes and modifications may be made to the subject matter of the present disclosure without departing from the scope of the subject matter of the present disclosure as defined by the appended claims.

Claims

1. An electrical junction box, comprising: The main framework; The rescue terminal portion is formed in a cuboid shape in a plan view and includes a longitudinal side, two transverse side connected to the longitudinal side, and a top surface, wherein the longitudinal side is longer than each transverse side. A resin cap configured to cover the longitudinal side, the two transverse side, and the top surface. The resin cap includes a rotating shaft extending along the longitudinal side and disposed on the side having the longitudinal side and on the base end portion of the rescue terminal portion opposite the upper surface. The resin cap is configured to rotate relative to the frame body about the rotating shaft. The rotary hinge structure configured to rotatably hold the resin cap is configured to allow the resin cap to be attached to and detached from the rescue terminal portion only when the resin cap is in the fully open position. Only after the rescue terminal part is removed from the frame body can the resin cover be rotated to the fully open position.

2. The electrical junction box according to claim 1, in, The locking arm, configured to detachably hold the rescue terminal portion relative to the frame body, is configured to hold the resin cover in a position immediately before it is fully open.

Images