Electric connection box

Abstract

To provide an electric connection box excellent in waterproofness.SOLUTION: An electric connection box 100 comprises: a case body 2 which can accommodate a case-side connection part 5 connected with a counterpart-side connection part inside and has a first opening; a case cover 1 having a second opening 11 assembled to the case body 2 to block the first opening and capable of exposing the case-side connection part 5 to the outside by communicating with the first opening; and an opening / closing cover 3 movably assembled to the case cover 1 between an open position for exposing the case-side connection part 5 to the outside and a closed position for covering the second opening 11 to be blocked. The case cover 1 is provided with a drain gutter 13 surrounding the second opening 11 and having an end extending to an edge of the case cover 1. The opening / closing cover 3 exposes most of the drain gutter 13 to the outside when it is at the closed position.SELECTED DRAWING: Figure 7

Description

[Technical field]

[0001] The present invention relates to an electrical junction box. [Background technology]

[0002] Conventionally, there has been proposed an electrical connection box that includes a case that houses electronic components and case-side connections electrically connected to the electronic components and has an opening that can expose the case-side connections to the outside, and an opening / closing cover that can rotate between a closed position that closes the case opening and an open position that exposes the case-side connections to the outside (see, for example, Patent Document 1). In Patent Document 1, the opening / closing cover is journaled on a rotating shaft that extends parallel to the opening surface, and opens and closes by rotating vertically relative to the opening of the case. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-197772 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, in an electrical junction box having an openable cover as described above, when the case is exposed to water, the openable cover can prevent water from directly entering the inside of the case from the opening, but water may accumulate on the surface of the case or on the openable cover. In this case, water accumulated near the opening may enter the inside of the case through a gap between the case and the openable cover. In addition, in an electrical junction box in which the openable cover rotates vertically relative to the opening of the case to open and close the case, as in Patent Document 1, holes from the molding die tend to remain as molding marks on the rotating shaft portion, etc. Therefore, when the case is exposed to water, water may enter the inside of the case through the holes. In other words, there is room for improvement in conventional electrical junction boxes in terms of waterproofness.

[0005] The present invention has been made in consideration of the above-mentioned circumstances, and an object of the present invention is to provide an electrical junction box that is excellent in waterproof properties. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the electrical junction box according to the present invention has the following features. a case body capable of accommodating therein a case side connection part to be connected to a mating connection part and having a first opening; a case cover attached to the case body so as to close the first opening and having a second opening communicating with the first opening and capable of exposing the case side connection portion to the outside; an opening / closing cover that is assembled to the case cover and can rotate between an open position that exposes the case side connection portion to the outside and a closed position that covers the second opening; An electrical connection box comprising: The case cover is provided with a drain groove portion surrounding the second opening and having an end portion extending to an edge of the case cover, The opening and closing cover is When in the closed position, a majority of the drain groove portion is exposed to the outside. It is an electrical junction box. Effect of the Invention

[0007] According to the present invention, the case cover is provided with a drain groove portion that surrounds the second opening and whose end extends to the edge of the case cover, and when in the closed position, the openable cover exposes most of the drain groove portion to the outside. As a result, when the electrical junction box is exposed to water, the openable cover can prevent water from directly entering through the second opening, and further, water that drips near the second opening is drained from the edge of the case body via the drain groove portion. In other words, according to the present invention, it is possible to prevent water from pooling near the second opening, and the waterproofing is superior to that of the conventional art.

[0008] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the following description of the preferred embodiment of the present invention (hereinafter, referred to as "embodiment") with reference to the accompanying drawings. [Brief description of the drawings]

[0009] [Figure 1] FIG. 1 is a perspective view showing an electrical junction box according to one embodiment of the present invention with an opening / closing cover in a closed position. [Diagram 2] FIG. 2 is a perspective view of the electrical junction box shown in FIG. 1 with the openable cover in an open position. [Diagram 3] FIG. 3 is an exploded perspective view of a main part of the electrical junction box shown in FIG. [Figure 4] FIG. 4 is an enlarged perspective view of a main part of the case cover shown in FIG. [Diagram 5] FIG. 5 is a top view of FIG. [Figure 6] 6 is a perspective view of the opening and closing cover shown in FIG. [Figure 7] 7 is an enlarged perspective view of a main part of the electric junction box shown in FIG. 1, which corresponds to FIG. [Figure 8] FIG. 8 is an enlarged cross-sectional view of a main part of the electrical junction box shown in FIG. [Figure 9] FIG. 9 is a first diagram for explaining an example of a drainage method in the electrical junction box shown in FIG. [Figure 10] FIG. 10 is a second diagram for explaining an example of a drainage method in the electrical junction box shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] An electric junction box 100 according to one embodiment of the present invention will now be described with reference to the drawings.

[0011] For the sake of convenience, the following definitions are used for the terms "front", "rear", "left", "right", "upper" and "lower" as shown in Fig. 1 etc. The "front-rear direction", "left-right direction" and "upper-lower direction" are mutually orthogonal. The upper-lower direction corresponds to the "crossing direction" of the present invention.

[0012] The electrical connection box 100 is mounted on a vehicle such as an automobile, and is electrically connected to an in-vehicle device such as a power source (not shown) by fastening a mating connection portion 4 connected to the in-vehicle device such as a power source (not shown) to the case side connection portion 5 (see Figure 3) using a bolt 6.

[0013] As shown in Figures 1 to 3, the electrical junction box 100 is configured to include a case cover 1, a case main body 2, and an opening / closing cover 3. In the following description, the housing completed by assembling the case cover 1 to the case main body 2 may be referred to as a "case." Below, the case cover 1 and the opening / closing cover 3 that configure the electrical junction box 100 will be described in order.

[0014] The case main body 2 has an upper end opening (symbol omitted, corresponding to the "first opening" of the present invention) that penetrates in the vertical direction to connect the inside and outside, and is formed in a roughly rectangular tube shape (in other words, a roughly rectangular tube with a bottom) with a bottom formed at the lower end, and accommodates electronic components (not shown) and a case side connection part 5 that is connected to the electronic components and the mating connection part 4 inside.

[0015] First, a description will be given of the case cover 1. The case cover 1 is formed in a substantially rectangular tubular shape (in other words, a substantially rectangular tubular shape with a bottom) with a bottom formed at the upper end corresponding to the case body 2, and is attached to the case body 2 so as to close the upper end opening of the case body 2.

[0016] 4 and 5, an opening 11 is provided at the front end of the upper end surface of the case cover 1, penetrating in the vertical direction. The opening 11 communicates with the upper end opening of the case main body 2 in the vertical direction, and exposes the case side connection part 5 to the outside of the case when the opening-closing cover 3 is in the open position (see FIGS. 3 and 5).

[0017] The front end wall of the opening 11 also serves as the front end wall of the case cover 1, as shown in Figures 4 and 7, and the upper end surface of this front end wall is formed in a concave shape recessed downward from the upper end surface of the case cover 1, as shown in Figures 4 and 8. As a result, a space 12 is defined in the front end wall of the case cover 1, communicating the inside and outside of the case in the front-rear direction, as shown in Figures 4 and 5. In the electrical junction box 100, even when the opening / closing cover 3 is in the closed position, the mating connection part 4 fastened together with the case side connection part 5 by the bolt 6 is led out forward from this space 12 (see Figures 1, 7 and 9).

[0018] As shown in Figs. 4 and 5, a drain groove 13 recessed downward is provided at the front end of the upper surface of the case cover 1 so as to surround the periphery of the opening 11. The drain groove 13 is composed of a first portion 13a located to the right of the opening 11 and extending in the front-rear direction, a second portion 13b located to the left of the opening 11 and extending in the front-rear direction, and a third portion 13c located behind the opening 11 and extending in the left-right direction and connecting the rear end of the first portion 13a and the rear end of the second portion 13b, and is formed in a generally rectangular U-shape when viewed from above. The front ends of the first portion 13a and the second portion 13b extend to the front edge of the upper surface of the case cover 1. Therefore, water dripping into the drain groove 13 is discharged from the front ends of the first portion 13a and the second portion 13b (see Fig. 9). In addition, water discharged from the front ends of the first portion 13a and the second portion 13b flows down, for example, along the front end wall of the case, and is therefore prevented from entering the inside of the case.

[0019] As shown in Figs. 4 and 5, a substantially cylindrical pivot shaft 14 is provided on the bottom surface of the second portion 13b, protruding upward and pivotally supporting the open-close cover 3. Therefore, the left-right width of the second portion 13b is greater than the left-right width of the first portion 13a. A drain space 14a is provided in the substantially central portion of the pivot shaft 14 in the front-rear direction, extending left-right so as to divide the pivot shaft 14 in half in the front-rear direction and extending from the upper surface of the pivot shaft to the bottom surface of the second portion 13b. As a result, water dripping into the drain space 14a reaches the second portion 13b and is discharged from the front end of the second portion 13b (see Fig. 10).

[0020] 4 and 5, a locking projection 15 for locking the open-close cover 3 is provided to the right of the pivot shaft 14 so as to protrude to the right. A molding hole 16 penetrating in the vertical direction is formed in the bottom surface of the second portion 13b in correspondence with the locking projection 15. The molding hole 16 is a punch hole for a molding die required for molding the locking projection 15. In other words, the molding hole 16 is not provided intentionally, but is a so-called molding mark.

[0021] As shown in Figures 4 and 5, a mounting portion 17 is provided on the bottom surface of the second portion 13b on which a base portion 32 of the opening / closing cover 3, which will be described later, is placed. A gap is defined between the mounting portion 17 and the periphery of the rotating shaft portion 14, and the gap is formed so as to communicate with the groove space of the drain groove portion 13 (second portion 13b) on the left side. In other words, water that has traveled along the outer circumferential surface of the rotating shaft portion 14 and reached the gap flows from the communicating portion to the second portion 13b and is discharged from the front end portion of the second portion 13b (see Figures 9 and 10).

[0022] As shown in Figs. 4-5 and 7-8, a first restricting rib 18 is provided at the rear of the opening 11 (the third portion 13c of the drain groove portion 13) on the upper end surface of the case cover 1 to restrict excessive rotation of the opening / closing cover 3 in the closing direction (counterclockwise when viewed from above in this example). Also, a first provisionally locking projection 19 that protrudes upward by a short distance is provided on the upper end surface of the left side wall of the first portion 13a. When the opening / closing cover 3 is in the closed position, the side wall of the opening / closing cover 3 is locked to the first provisionally locking projection 19 at its outer surface (see Fig. 7). That is, the opening / closing cover 3 is maintained in the normal position of the closed position by the first restricting rib 18 and the first provisionally locking projection 19.

[0023] As shown in Figs. 4-5 and 7-8, a second restricting rib 20 is provided to the left of the opening 11 (second portion 13b of the drain groove portion 13) on the upper end surface of the case cover 1 to restrict excessive rotation of the opening cover 3 in the opening direction (clockwise when viewed from above in this example). In addition, a second temporary locking projection 21 that protrudes slightly upward is provided to the right of the second restricting rib 20. When the opening cover 3 is in the open position, the side wall of the opening cover 3 is locked by the second temporary locking projection 21 at its inner surface (see Fig. 8). That is, the opening cover 3 is maintained in the normal open position by the second restricting rib 20 and the second temporary locking projection 21.

[0024] Next, the opening / closing cover 3 will be described. The directions used in the description of the opening / closing cover 3 are the directions when the opening / closing cover 3 is in the closed position. The opening / closing cover 3 is assembled to the case cover 1 so as to be rotatable between an open position (see Figs. 2 and 8) where the case side connection part 5 is exposed to the outside of the case, and a closed position (see Figs. 1, 7, 9, and 10) where the opening / closing cover 3 covers the opening 11 to block it. As shown in Fig. 6, the opening / closing cover 3 has a cover main body 31 and a base part 32 formed integrally.

[0025] The cover body 31 has an outer dimension corresponding to the opening 11, and is formed in a generally rectangular truncated shape (it has no bottom surface) that is convex upward. Therefore, the right surface of the cover body 31 is formed in a downward inclination toward the first portion 13a of the drain groove portion 13. That is, water that drips onto the right surface of the cover body 31 flows down the right surface, reaches the first portion 13a, and is discharged from the front end portion of the first portion 13a (see Figures 9 and 10).

[0026] Similarly, the left surface of the cover body 31 is formed with a downward slope toward the second portion 13b of the drain groove portion 13. That is, water dripping onto the left surface of the cover body 31 flows along the left surface, reaches the second portion 13b, and is discharged from the front end portion of the second portion 13b (see Figures 9 and 10).

[0027] Similarly, the rear surface of the cover body 31 is formed with a downward slope toward the third portion 13c of the drain groove portion 13. That is, water that drips onto the rear surface of the cover body 31 flows along the rear surface to the third portion 13c, and then flows to the first portion 13a or the second portion 13b, and is discharged from the front end of the first portion 13a or the second portion 13b (see FIG. 9).

[0028] Similarly, the front surface of the cover body 31 is formed with a downward slope toward the cover drain groove 34 described later. That is, water that drips onto the front surface of the cover body 31 flows along the front surface into the cover drain groove 34, and then flows into the second portion 13b and is discharged from the front end of the second portion 13b (see FIG. 9).

[0029] The base 32 is located to the left of the cover body 31, and is placed on the placement portion 17 when the opening / closing cover 3 is assembled to the case cover 1 (see FIG. 7). The placement portion 17 is provided with an axis hole 33 that penetrates in the vertical direction and corresponds to the pivot shaft portion 14 of the case cover 1. The opening / closing cover 3 is assembled to the case cover 1 by inserting the pivot shaft portion 14 into the axis hole 33 and engaging the upper end surface of the periphery of the axis hole 33 with the engaging protrusion 15 (see FIG. 7). Note that a slight clearance is formed between the upper end surface of the periphery of the axis hole 33 and the engaging protrusion 15.

[0030] A gutter-shaped cover drain groove 34 that extends across the entire left-right area of ​​the cover body 31 and opens to the left is provided at the front end of the cover body 31. Therefore, water that drips into the cover drain groove 34 is drained toward the second part 13b of the drain groove 13. This prevents water that drips onto the front surface of the cover body 31 from being guided forward from the space 12 of the case cover 1 and getting onto the mating connection part 4.

[0031] The above describes the case cover 1 and the opening / closing cover 3 that constitute the electrical junction box 100. An example of a manufacturing method for the electrical junction box 100 will now be described.

[0032] First, with the electronic components and case side connection parts 5 housed inside the case body 2, the case cover 1 is attached to the case body 2 from above so as to close the upper end opening of the case body 2. Then, the pivot shaft part 14 of the case cover 1 is inserted into the shaft hole 33 of the opening / closing cover 3 from above, and the pivot shaft part 14 is engaged with the shaft hole 33. This completes the electrical connection box 100.

[0033] Thereafter, for example, the opening / closing cover 3 can be rotated from the closed position to the open position, and the case side connection part 5 and the mating side connection part 4 can be fastened together with the bolt 6 to be electrically connected.

[0034] The above describes one example of a manufacturing method for the electrical junction box 100. The following describes the manner in which the open-close cover 3 rotates. In this embodiment, the open-close cover 3 is configured to rotate laterally relative to the opening 11.

[0035] First, the rotational manner of the opening / closing cover 3 from the closed position to the open position will be described. When the opening / closing cover 3 is in the closed position, the opening / closing cover 3 is restricted from rotating in the opening direction by the first provisional locking projection 19 of the case cover 1. Therefore, by lifting the opening / closing cover 3 upward and rotating it in the opening direction, the opening / closing cover 3 passes over the first provisional locking projection 19, and the lock between the opening / closing cover 3 (cover body 31) and the first provisional locking projection 19 is released, and the opening / closing cover 3 is rotated in the opening direction. Then, after the opening / closing cover 3 is rotated to the second provisional locking projection 21, the opening / closing cover 3 is lifted upward again and further rotated in the opening direction, and the opening / closing cover 3 passes over the second provisional locking projection 21 and reaches the open position. That is, the opening / closing cover 3 (cover body 31) is locked by the second provisional locking projection 21. This completes the rotation of the opening / closing cover 3 from the closed position to the open position. At this time, the second restricting rib 20 restricts the opening / closing cover 3 from rotating excessively in the opening direction.

[0036] Next, the manner of rotation of the opening / closing cover 3 from the open position to the closed position will be described. When the opening / closing cover 3 is in the open position, the opening / closing cover 3 is restricted from rotating in the closing direction by the second provisional locking projection 21 of the case cover 1. Therefore, by lifting the opening / closing cover 3 upward and rotating it in the closing direction, the opening / closing cover 3 passes over the second provisional locking projection 21, and the lock between the opening / closing cover 3 (cover body 31) and the second provisional locking projection 21 is released, and the opening / closing cover 3 is rotated in the closing direction. Then, after the opening / closing cover 3 is rotated to the first provisional locking projection 19, the opening / closing cover 3 is lifted upward again and further rotated in the closing direction, and the opening / closing cover 3 passes over the first provisional locking projection 19 and reaches the closed position. That is, the opening / closing cover 3 (cover body 31) is locked by the first provisional locking projection 19. This completes the rotation of the opening / closing cover 3 from the open position to the closed position. At this time, the first restricting rib 18 restricts the opening / closing cover 3 from rotating excessively in the closing direction.

[0037] When the opening / closing cover 3 is in the closed position, the opening / closing cover 3 covers a part of the second portion 13b of the drain groove portion 13, but leaves most of the drain groove portion 13 exposed to the outside of the case (see FIG. 9). Also, when the opening / closing cover 3 is in the closed position, the opening / closing cover 3 covers and blocks the molding hole portion 16 (see FIG. 10).

[0038] As described above, according to this embodiment, the case cover 1 is provided with the drain groove portion 13 that surrounds the opening 11 and whose front end extends to the front edge of the case cover 1, and when in the closed position, the open-close cover 3 exposes most of the drain groove portion 13 to the outside. As a result, when the electrical junction box 100 becomes wet, the open-close cover 3 can prevent water from entering directly from the opening 11, and further, water that drips near the opening 11 is drained from the front edge of the case cover 1 via the drain groove portion 13. That is, according to this embodiment, water can be prevented from pooling near the opening 11, and waterproofing is superior to conventional methods.

[0039] Furthermore, according to this embodiment, the cover body 31 of the opening / closing cover 3 is formed in a convex shape so that at least a portion of the outer surface slopes downwardly toward the drain groove portion 13, so that water dripping onto the opening / closing cover 3 flows down into the drain groove portion 13, preventing water from accumulating on the opening / closing cover 3.

[0040] Furthermore, according to this embodiment, the molding hole 16 (punch hole) created when molding the locking protrusion 15 of the rotating shaft portion 14 is covered in a blocking manner by the opening / closing cover 3, thereby preventing water from entering through the molding hole 16 when the electrical connection box 100 becomes wet.

[0041] Furthermore, according to this embodiment, the case cover 1 is provided with a first regulating rib 18 and a first temporary locking projection 19, as well as a second regulating rib 20 and a second temporary locking projection 21, thereby restricting excessive rotation of the opening / closing cover 3 and maintaining the opening / closing cover 3 in the correct position, either the open position or the closed position.

[0042] Furthermore, according to this embodiment, since the pivot shaft portion 14 is provided so as to protrude in the vertical direction, the molding marks generated in the case cover 1 are only the molding holes 16 which are punch holes for molding the locking projections 15, and therefore the punch holes (molding holes 16) can be made smaller than in the past. In other words, according to this embodiment, the possibility of water entering the inside of the case through the punch holes (molding holes 16) can be reduced.

[0043] <Other forms> The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, etc. In addition, the material, shape, size, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary as long as the present invention can be achieved, and are not limited.

[0044] Here, the features of the above-described embodiments of the electrical junction box according to the present invention will be briefly summarized and listed in the following [1] to [4].

[0045] [1] a case body (2) capable of accommodating therein a case side connection part (5) to be connected to a mating connection part and having a first opening; a case cover (1) attached to the case body (2) so as to close the first opening, the case cover having a second opening (11) communicating with the first opening and capable of exposing the case side connection portion (5) to the outside; an opening / closing cover (3) assembled to the case cover (1) so as to be rotatable between an open position in which the case side connection portion (5) is exposed to the outside and a closed position in which the case side connection portion (5) covers the second opening portion (11) to close it; An electrical connection box (100) comprising: The case cover (1) is provided with a drainage groove portion (13) surrounding the second opening (11) and having an end portion extending to an edge of the case cover (1), The opening and closing cover (3) is When in the closed position, most of the drain groove portion (13) is exposed to the outside. Electrical junction box (100).

[0046] According to the configuration of [1] above, the case cover is provided with a drain groove portion that surrounds the second opening and whose end extends to the edge of the case cover, and when in the closed position, the openable cover exposes most of the drain groove portion to the outside. As a result, when the electrical junction box is exposed to water, the openable cover can prevent water from directly entering through the second opening, and further, water that drips near the second opening is drained from the edge of the case body via the drain groove portion. In other words, according to this configuration, it is possible to prevent water from accumulating near the second opening, and the waterproofing is superior to that of the conventional configuration.

[0047] [2] The electrical connection box (100) according to the above [1], The opening / closing cover (3) has a cover body (31) that covers the second opening (11), The cover body (31) is formed in a convex shape such that at least a part of the outer surface is downwardly inclined toward the drain groove portion (13). Electrical junction box (100).

[0048] According to the above configuration [2], the cover body of the opening / closing cover is formed in a convex shape so that at least a portion of the outer surface slopes downwardly toward the drain groove portion, so that water dripping onto the opening / closing cover flows down into the drain groove portion, thereby preventing water from accumulating on the opening / closing cover.

[0049] [3] The electrical connection box (100) according to the above [1] or [2], The drainage groove portion (13) has a rotation shaft portion (14) is provided which protrudes in a direction intersecting with an opening surface of the second opening portion (11) (vertical direction) and supports the opening / closing cover (3) so as to be rotatable; The case cover (1) is The pivot shaft portion (14) is provided with a locking projection (15) to which the openable cover (3) is locked, and a molding hole portion (16) for the locking projection (15) is formed in the bottom surface of the drain groove portion (13), The opening and closing cover (3) is When in the closed position, the molding hole (16) is covered so as to be closed. Electrical junction box (100).

[0050] According to the above configuration [3], the molding hole (punch hole) created when molding the locking protrusion of the pivot shaft portion is covered by the opening / closing cover, thereby preventing water from entering through the molding hole when the electrical connection box becomes wet.

[0051] [4] An electrical connection box (100) according to any one of the above [1] to [3], The case cover (1) has: a first restricting portion (a first restricting rib 18, a first provisional locking projection 19) that restricts excessive rotation in the closing direction when the openable cover (3) is in the closed position; and a second restricting portion (a second restricting rib 20, a second provisionally engaging projection 21) that restricts excessive rotation in the opening direction when the opening / closing cover (3) is in the open position. Electrical junction box (100).

[0052] According to the above configuration [4], by providing the first and second restricting portions on the case cover, excessive rotation of the opening / closing cover can be restricted, and the opening / closing cover can be maintained in the normal position, that is, the open position or the closed position. [Explanation of symbols]

[0053] 1 Case cover 2 Case body 3 Opening and closing cover 11 Opening (second opening) 13 Drain section 13a Part 1 13b Part 2 13c Part 3 14 Rotating shaft 14a Drainage space 15 Locking protrusion 16 Molding hole 18 First Restriction Rib 19 First provisional locking projection 20 Second Restriction Rib 21 Second provisional locking projection 31 Cover body 32 Base 33 Shaft hole 34 Cover drain 100 Electrical junction box

Claims

1. a case body capable of accommodating therein a case side connection part to be connected to a mating connection part and having a first opening; a case cover attached to the case body so as to close the first opening, the case cover having a second opening communicating with the first opening and capable of exposing the case side connection portion to the outside; an opening / closing cover attached to the case cover so as to be rotatable between an open position in which the case side connection portion is exposed to the outside and a closed position in which the case side connection portion is covered to close the second opening; An electrical connection box comprising: the case cover is provided with a drain groove portion surrounding the second opening and having an end portion extending to an edge of the case cover; The opening and closing cover is When in the closed position, a majority of the drain groove portion is exposed to the outside. Electrical junction box.

2. 2. The electrical connection box according to claim 1, the opening / closing cover has a cover body that covers the second opening, The cover body is formed in a convex shape such that at least a portion of an outer surface thereof is inclined downward toward the drainage groove portion. Electrical junction box.

3. 2. The electrical connection box according to claim 1, The drainage groove portion has a rotation shaft portion that protrudes in a direction intersecting an opening surface of the second opening and rotatably supports the opening / closing cover; The case cover is The pivot shaft portion is provided with a locking projection to which the openable cover is locked, and a molding hole portion for the locking projection is formed in a bottom surface of the drain groove portion, The opening and closing cover is When in the closed position, the molding hole is covered so as to be closed. Electrical junction box.

4. 2. The electrical connection box according to claim 1, The case cover includes: a first restriction portion that restricts excessive rotation of the opening / closing cover in a closing direction when the opening / closing cover is in the closed position; and a second restriction portion that restricts excessive rotation of the opening / closing cover in the opening direction when the opening / closing cover is in the open position. Electrical junction box.

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