Protective cover assembly structure and electrical junction box

Abstract

To improve assembling workability.SOLUTION: The first locking body 31 of the mounting object 110 has a locking part 31a for locking the first locked body 32 of the protective cover at the temporary holding position and holding it at the position on at least one of both ends when viewed in the axial direction of the rotary shaft 21 of the protective cover 10. The first locked body includes a cantilever-shaped flexible portion 32a that protrudes from the cover main body 11 of the protective cover in the opening direction and can be bent and deformed in the axial direction of the rotation shaft, and a locked projection portion 32b that protrudes from a free end of the flexible portion in the axial direction of the rotation shaft and is locked by the locking portion at the temporary holding position and is held at that position, and the locked projection portion is provided with an input-portion 32c that causes the flexible portion to be bent and deformed and to get over the locking portion by applying a force to a contact position with the locking portion when the protective cover at the temporary holding position is rotated in the closing direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an assembly structure for a protective cover and an electrical junction box. [Background technology]

[0002] Conventionally, there has been known an electrical junction box in which an electrical connection portion exposed from an opening is covered with a protective cover along with the opening, and the protective cover is opened around the axis of a rotating shaft to perform work such as connecting conductive components to the electrical connection portion. This type of electrical junction box is disclosed, for example, in Patent Document 1 listed below. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-27724 Summary of the Invention [Problem to be solved by the invention]

[0004] In some cases, the manufacturing process of an electrical junction box and the process of connecting conductive components to the electrical connection portions are performed in different locations. In such cases, the electrical junction box manufactured in one location needs to be transported to another location. It is desirable to transport the electrical junction box to the other location with the protective cover open, considering the ease of connection work at the other location. However, in conventional electrical junction boxes, the protective cover cannot be left in the open position, and the electrical junction box must be transported to the other location with the protective cover closed. Therefore, in conventional electrical junction boxes, the protective cover must be opened from the closed position to the open position before the conductive component connection work can begin.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a protective cover assembly structure and an electrical junction box that can improve the ease of assembly work. [Means for solving the problem]

[0006] The assembly structure for a protective cover according to the present invention includes: a protective cover that exposes an opening of a main body of an object to be assembled at an open position relative to the object to be assembled, and covers the opening with a cover main body at a closed position relative to the object to be assembled; a rotating shaft provided on one of the protective cover and the object to be assembled; a bearing provided on the other of the protective cover and the object to be assembled, and capable of rotating the protective cover around the axis of the rotating shaft between the open position and the closed position; and a temporary holding mechanism that temporarily holds the protective cover at the temporary holding position by locking a first locked body of the protective cover with a first locking body of the object to be assembled at the temporary holding position, where the protective cover is rotated further in an open direction than the open position, and a locking portion at at least one of both ends as viewed in the axial direction that locks the first locked body at the temporary holding position and keeps it in that position, the first locked body having a cantilever-shaped flexible portion that protrudes from the cover body in the opening direction and is capable of bending and deforming in the axial direction, and a locking protrusion that protrudes in the axial direction from the free end of the flexible portion and is locked by the locking portion at the temporary holding position to keep it in that position, and the locking protrusion is provided with an input portion that, when the protective cover is rotated in the closing direction from the temporary holding position, applies a force to a position where it abuts with the locking portion, receives a reaction force from the abutment position, and causes the flexible portion to bend and deform so as to overcome the locking portion.

[0007] Furthermore, the assembly structure for a protective cover according to the present invention includes a protective cover that exposes an opening of a main body of an object to be assembled at an open position relative to the object to be assembled and covers the opening with a cover main body at a closed position relative to the object to be assembled; a rotating shaft provided on one of the protective cover and the object to be assembled; a bearing provided on the other of the protective cover and the object to be assembled and capable of rotating the protective cover around the axis of the rotating shaft between the open position and the closed position; and a temporary holding mechanism that temporarily holds the protective cover at the temporary holding position by locking a first locked body of the object to be assembled with a first locking body of the protective cover at the temporary holding position rotated further in an open direction than the open position, and a locking portion on at least one of both ends as viewed in the closing direction that locks the first locked body at the temporary holding position and keeps it in that position, and the first locked body has a cantilever-shaped flexible portion that protrudes from the main body of the assembly object in the closing direction and is capable of bending and deforming in the axial direction, and a locking protrusion that protrudes in the axial direction from the free end of the flexible portion and is locked by the locking portion at the temporary holding position to keep it in that position, and the locking protrusion is provided with an input portion that, when the protective cover is rotated in the closing direction from the temporary holding position, applies a force to a position where it abuts with the locking portion, and receives a reaction force from the abutting position, causing the flexible portion to bend and deform so as to overcome the locking portion.

[0008] The electrical junction box according to the present invention includes an accommodating member that accommodates in a chamber an electrical connection member provided with an electrical connection portion that physically and electrically connects a mating conductive component; a cover member that is assembled to the accommodating member and covers the accommodating chamber with a main body and exposes the electrical connection portion from an opening in the main body; a protective cover that exposes the electrical connection portion together with the opening in an open position relative to the cover member and covers the opening and the electrical connection portion with the cover main body in a closed position relative to the cover member; a rotating shaft provided on one of the protective cover and the cover member; a bearing provided on the other of the protective cover and the cover member that can rotate the protective cover around the axis of the rotating shaft between the open position and the closed position; and a first locked body of the protective cover that locks with a first locking body of the cover member at a temporary holding position rotated further in an open direction than the open position. and a temporary holding mechanism for temporarily holding the protective cover at the temporary holding position by rotating the protective cover in the closing direction, wherein the first locking body has a locking portion on at least one of both ends of the rotating shaft as viewed in the axial direction that locks the first locked body at the temporary holding position and keeps it in that position, and the first locked body has a cantilever-shaped flexible portion that protrudes from the cover body in the opening direction and is capable of bending and deforming in the axial direction, and a locked protrusion that protrudes from the free end of the flexible portion in the axial direction and is locked by the locking portion at the temporary holding position to keep it in that position, and the locked protrusion is provided with an input portion that, when the protective cover at the temporary holding position is rotated in the closing direction, applies a force to a contact position with the locking portion and receives a reaction force from the contact position, causing the flexible portion to bend and deform so as to overcome the locking portion. [Effects of the Invention]

[0009] The protective cover assembly structure and electrical junction box according to the present invention can keep the protective cover open in the temporary holding position, so that the protective cover can be transported in an open state, for example. Therefore, this protective cover assembly structure and electrical junction box can be used to perform connection work using the opening while in the transported state, improving assembly workability. [Brief explanation of the drawings]

[0010] [Figure 1] FIG. 1 is an exploded perspective view showing an assembly structure of a protective cover and an electrical junction box according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing the main points of the assembled structure of the protective cover and the electrical junction box according to the embodiment, showing the protective cover in a temporary holding position. [Figure 3] FIG. 3 is an exploded perspective view of the protective cover assembly structure and the electrical junction box according to the embodiment, as viewed from a different angle. [Figure 4] FIG. 4 is a perspective view of the protective cover assembly structure and the main points of the electrical junction box according to the embodiment, seen from a different angle, showing the protective cover in a temporary holding position. [Figure 5] FIG. 5 is a cross-sectional view taken along line XX in FIG. [Figure 6] FIG. 6 is a cross-sectional view taken along line YY in FIG. [Figure 7] FIG. 7 is a perspective view showing the main points of the assembled structure of the protective cover and the electrical junction box of the embodiment, showing the protective cover in the open position. [Figure 8] FIG. 8 is a perspective view of the protective cover assembly structure and the main points of the electrical junction box according to the embodiment, seen from a different angle, showing the protective cover in the open position. [Figure 9] FIG. 9 is a cross-sectional view taken along line XX in FIG. [Figure 10] FIG. 10 is a perspective view showing the main points of the assembled structure of the protective cover and the electrical junction box of the embodiment, showing the protective cover in the closed position. DETAILED DESCRIPTION OF THE INVENTION

[0011] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the protective cover assembly structure and the electrical junction box according to the present invention will be described in detail below with reference to the accompanying drawings. However, the present invention is not limited to these embodiments.

[0012] [Embodiment] One embodiment of the protective cover assembly structure and electrical junction box according to the present invention will be described with reference to FIGS. 1 to 10. FIG.

[0013] 1 to 10, reference numeral 1 denotes the protective cover assembly structure of this embodiment, and reference numeral 101 denotes an electrical junction box provided with the protective cover assembly structure 1.

[0014] The assembly structure 1 includes a protective cover 10 that exposes an opening 112 in a main body 111 of the object 110 to be assembled when in an open position relative to the object 110, and that covers the opening 112 with a cover main body 11 when in a closed position relative to the object 110 ( FIGS. 1 to 10 ). The assembly structure 1 also includes a rotating shaft 21 provided on one of the protective cover 10 or the object 110 to be assembled, and a bearing 22 provided on the other of the protective cover 10 or the object 110 to be assembled, and that can rotate the protective cover 10 around the axis of the rotating shaft 21 between the open position and the closed position ( FIGS. 1 , 3 to 5 , and 8 to 10 ). The assembly structure 1 also includes a temporary holding mechanism 30 that temporarily holds the protective cover 10 at a temporary holding position where the protective cover 10 is rotated further in the open direction than the open position ( FIGS. 1 to 3 , and 5 to 10 ). This temporary holding mechanism 30 temporarily holds the protective cover 10 in the temporary holding position by engaging a locking body (hereinafter referred to as the "first locking body") 32 of the protective cover 10 with a locking body (hereinafter referred to as the "first locking body") 31 of the object to be assembled 110 at the temporary holding position (Figures 1 to 3 and Figures 5 to 10).

[0015] In this embodiment, an electric junction box 101 is shown as an example of an application of this assembly structure 1.

[0016] The electrical junction box 101 includes a housing member 120 molded from an insulating material such as synthetic resin (FIGS. 1 and 3). The housing member 120 houses an electrical connection member 130 in a housing chamber. The electrical connection member 130 is, for example, a metal bus bar, and is provided with an electrical connection portion 131 that physically and electrically connects a mating conductive component (FIGS. 1 to 4). In this example, the electrical connection portion 131 is formed in the shape of a rectangular flat plate.

[0017] The electrical junction box 101 also includes a cover member as an object 110 to which the protective cover 10 is to be attached (FIGS. 1 to 10). Hereinafter, the object 110 to be attached may be referred to as the cover member 110. The cover member 110 is attached to the accommodating member 120, and the main body 111 covers the accommodating chamber of the accommodating member 120, with the electrical connection portion 131 exposed from an opening 112 in the main body 111. The main body 111 of the cover member 110 shown here has a rectangular accommodating chamber 113 formed therein for accommodating the electrical connection portion 131 (FIGS. 1 to 4). One flat surface of the electrical connection portion 131 is placed on the bottom surface of the accommodating chamber 113. The electrical connection portion 131 is exposed from a rectangular opening 112 that is arranged opposite the other flat surface of the electrical connection portion 131 with a gap therebetween.

[0018] In this electrical connection box 101, the protective cover 10 exposes the opening 112 and the electrical connection portion 131 when in the open position relative to the cover member 110 (Figures 7 to 9), and covers the opening 112 and the electrical connection portion 131 with the cover body 11 when in the closed position relative to the cover member 110 (Figure 10).

[0019] In this electrical junction box 101, a rotation shaft 21 is provided on the cover member 110, and a bearing 22 is provided on the protective cover .

[0020] The temporary holding mechanism 30 will be specifically described below using this electrical junction box 101.

[0021] The first locking body 31 has a locking portion 31a on at least one of its ends in the axial direction of the rotating shaft 21 that locks the first locked body 32 at the temporary holding position and keeps it in that position ( FIGS. 1 to 3 , 6 , 7 , and 10 ). The first locked body 32 also has a cantilever-shaped flexible portion 32a that protrudes from the cover body 11 in the opening direction and is capable of bending and deforming in the axial direction of the rotating shaft 21, and a locked protrusion 32b that protrudes from the free end of the flexible portion 32a in the axial direction of the rotating shaft 21 and is locked by the locking portion 31a at the temporary holding position to keep it in that position ( FIGS. 1 , 2 , 5 to 7 , and 9 to 10 ). The flexible portion 32a is positioned opposite the locking portion 31a in the axial direction of the rotating shaft 21 at the temporary holding position. In the temporary holding position, the free end of the flexible portion 32a is positioned on the opening side of the locking portion 31a. In other words, in the temporary holding mechanism 30, the cover body 11 in the temporary holding position and the locked protrusion portion 32b sandwich the locking portion 31a, thereby holding the protective cover 10 in the temporary holding position.

[0022] Specifically, the first locking body 31 has a locking portion 31a at each end as viewed in the axial direction of the rotating shaft 21 (FIGS. 1 to 3, 6, 7, and 10). The protective cover 10 is provided with a first locked body 32 for each locking portion 31a (FIGS. 1, 2, 6, 7, and 10).

[0023] The first locking body 31 shown here has a cantilever shape that protrudes from the main body 111 side of the cover member as the assembly object 110 as a fixed end, and is formed in the shape of a rectangular half with both ends, as viewed in the axial direction of the rotating shaft 21, as sides that extend along the direction of protrusion from the main body 111 (FIGS. 1 to 3, 6, 7, and 10). In the first locking body 31, a portion of the side is used as the locking portion 31a.

[0024] The protective cover 10 is assembled to a cover member, which is an assembly target 110, in an assembly direction opposite to the protruding direction of the first locking bodies 31 (FIGS. 1 to 4). As previously described, in the protective cover 10, the locking portions 31a are sandwiched between the cover main body 11 and the locked protrusions 32b at the temporary holding position (FIG. 6). In addition, with the protective cover 10 in this temporary holding position, the locking portions 31a are sandwiched between the cover main body 11 and the locked protrusions 32b for each first locking body 32 (FIG. 6). In other words, the protective cover 10 has a space 12 surrounded by the cover main body 11, the pair of flexible portions 32a, and the pair of locked protrusions 32b, and the first locking bodies 31 are inserted into the space 12 at the temporary holding position (FIGS. 1 and 6). The first locking bodies 31 are inserted into the space 12 from their free ends when the protective cover 10 is assembled to a cover member serving as the assembly object 110. In other words, the first locking bodies 31 are inserted into the space 12 from their free ends in conjunction with the assembly operation of the protective cover 10 to the cover member serving as the assembly object 110. In other words, the pair of first locked bodies 32 are formed so that the first locking bodies 31 can be inserted into the space 12 from their free ends in conjunction with the assembly operation of the protective cover 10 to the cover member serving as the assembly object 110.

[0025] Furthermore, the bearing 22 has an insertion opening 22a through which the rotating shaft 21 is inserted in conjunction with the assembling operation of the protective cover 10 to the cover member as the assembly object 110, and a bearing portion 22b that rotatably supports the rotating shaft 21 inserted through this insertion opening 22a (FIGS. 1, 3, 5, and 9). Therefore, by assembling the protective cover 10 to the cover member as the assembling object 110, the protective cover 10 is temporarily held in the temporary holding position (FIGS. 2, 4, and 5).

[0026] This electrical junction box 101 is manufactured at one location and transported to another location to physically and electrically connect a mating conductive part to the electrical connection portion 131. This electrical junction box 101 is transported from the manufacturing location to the connection location of the mating conductive part with the protective cover 10 temporarily held in the temporary holding position. Therefore, after the mating conductive part is connected, the protective cover 10 is displaced from the temporary holding position to the closed position.

[0027] Therefore, the engaging projection portion 32b is provided with an input portion 32c that applies a force to the contact position with the engaging portion 31a when the protective cover 10 in the temporary holding position is rotated in the closing direction, and receives a reaction force from the contact position with the engaging portion 31a, causing the flexible portion 32a to bend and deform, thereby overcoming the engaging portion 31a (Figures 1, 2, 5, 6, 9 and 10).

[0028] The input portion 32c is a wall surface inclined with respect to the axial direction of the rotary shaft 21 and positioned opposite the locking portion 31a at the abutment position with the locking portion 31a. The input portion 32c is formed as an inclined surface that protrudes less from the free end of the flexible portion 32a toward the closing direction (FIGS. 1, 2, 6, 9, and 10). Therefore, in the protective cover 10, when a force is applied in the closing direction from the temporary hold position, the input portion 32c of the locking projection 32b abuts against the locking portion 31a and applies the force. The input portion 32c receives a reaction force from the abutment position with the locking portion 31a, causing the flexible portion 32a to bend and deform. In the protective cover 10, as the force in the closing direction continues to be applied, the amount of bending and deformation of the flexible portion 32a increases, and the locking projection 32b overcomes the locking portion 31a. This allows the protective cover 10 to reach the open position and then move to the closed position.

[0029] For example, the engaging protrusion 32b shown here is mainly a cylinder having an axis parallel to the axis of the rotating shaft 21, and an input portion 32c is formed as if a part of this cylinder had been carved into an inclined surface shape (Figures 1, 2, 6, 9 and 10).

[0030] Furthermore, the protective cover 10 is opened from the closed position when performing maintenance and inspection. When the protective cover 10 is in the open position, the locking portion 31a locks the locking protrusion 32b in the opening direction. Here, after the protective cover 10 is temporarily displaced from the temporary holding position to the open position, the protective cover 10 is prevented from returning to the temporary holding position. Therefore, the locking portion 31a and the locking protrusion 32b are formed in a shape that allows the locking portion 31a to continue to lock the locking protrusion 32b when a force in the opening direction is applied to the protective cover 10 in the open position, thereby keeping the protective cover 10 in the open position (FIGS. 7 to 9). In this example, the arc-shaped outer peripheral surface of the main portion of the locking protrusion 32b abuts against the locking portion 31a. This allows the locking portion 31a to continue to lock the locking protrusion 32b.

[0031] Here, the protective cover 10 is formed to have a center of gravity Cg that is offset around the axis of the rotating shaft 21 in the open position from the vertically upper side of the rotating shaft 21 toward the closed position (FIG. 9). Therefore, the protective cover 10 in the open position will return to the closed position by its own weight if no force is applied.

[0032] As described above, the assembly structure 1 for the protective cover 10 and the electrical junction box 101 of this embodiment can keep the protective cover 10 open in the temporary holding position, so that, for example, the protective cover 10 can be transported in an open state. Therefore, the assembly structure 1 for the protective cover 10 and the electrical junction box 101 can be used to perform connection work using the opening 112 while they are still in the transported state, improving the ease of assembly.

[0033] Furthermore, in the assembly structure 1 of the protective cover 10 and the electrical connection box 101 of this embodiment, when rotating the protective cover 10 from the temporary holding position to the closing direction, the flexible portion 32a and the input portion 32c of the engaging protrusion portion 32b can be used to rotate the protective cover 10 from the temporary holding position to the open position with a light force.

[0034] Furthermore, the assembly structure 1 for the protective cover 10 and the electrical junction box 101 of this embodiment prevent the protective cover 10 from returning to the temporary hold position after it has been displaced from the temporary hold position to the open position. The assembly structure 1 for the protective cover 10 and the electrical junction box 101 of this embodiment set the center of gravity Cg of the protective cover 10 as described above, so that if no force is applied to the protective cover 10 in the open position, the protective cover 10 will return to the closed position by its own weight. Therefore, the assembly structure 1 for the protective cover 10 and the electrical junction box 101 can prevent the protective cover 10 from remaining open.

[0035] Here, the assembly structure 1 for the protective cover 10 and the electrical junction box 101 of this embodiment are provided with a holding mechanism 40 that keeps the protective cover 10 in a closed position (FIGS. 1 to 4). This holding mechanism 40 includes a locking body (hereinafter referred to as a "second locking body") 41 provided on the cover member as the assembly object 110, and a locked body (hereinafter referred to as a "second locked body") 42 provided on the protective cover 10, and these are locked to each other to keep the protective cover 10 in the closed position (FIGS. 1 to 4). The second locking body 41 has a groove portion 41a, and part of the peripheral wall of this groove portion 41a is used as a locking portion 41b (FIGS. 1 to 4). The second engaging body 42 has a flexible piece portion 42a formed in a cantilevered, flexible piece shape, and a claw portion 42b protruding from one plane of the flexible piece portion 42a (Figures 1 to 4).

[0036] In the second locking body 41 and the second locked body 42, when the protective cover 10 is closed toward the closed position, the claws 42b abut against the locking portions 41b on the peripheral walls of the grooves 41a. Applying a force in the closing direction to the protective cover 10 in this state causes the claws 42b to overcome the locking portions 41b while bending and deforming the flexible pieces 42a. As a result, in the second locking body 41 and the second locked body 42, the claws 42b enter the grooves 41a and are positioned within the grooves 41a so that the claws 42b can be locked with the locking portions 41b. The protective cover 10 reaches the closed position when the claws 42b enter the grooves 41a. The second locking body 41 and the second locked body 42 can keep the protective cover 10 in the closed position by locking the claws 42b with the locking portions 41b within the grooves 41a.

[0037] The assembly structure 1 for the protective cover 10 and the electrical junction box 101 shown here are equipped with such a retaining mechanism 40, so that when the protective cover 10 in the open position closes under its own weight, the claws 42b come into contact with the locking portions 41b, and the movement of the protective cover 10 stops at that position. However, with the assembly structure 1 for the protective cover 10 and the electrical junction box 101, the protective cover 10 closes under its own weight to a position that covers the opening 112, so the protective cover 10 can be prevented from remaining open. Here, it is necessary to push the protective cover 10 in so that the claws 42b fit into the grooves 41a.

[0038] Although not shown, the temporary holding mechanism 30 may have a first locking body 31 provided on the protective cover 10 and a first locked body 32 provided on the cover member serving as the assembly object 110. In this case, the first locked body 32 has a flexible portion 32a that protrudes in the closing direction from the main body 111 of the cover member serving as the assembly object 110, and a locked protrusion 32b is provided at the tip (free end) of the protruding end of the flexible portion 32a. [Explanation of symbols]

[0039] 1. Assembly structure 10 Protective cover 11 Cover body 12 Space section 21 Rotation axis 22 Bearings 22a insertion port 22b Bearing section 30 Temporary holding mechanism 31 First locking body 31a Locking part 32 First locked object 32a Flexible part 32b Locked protrusion 32c input section 40 Retention mechanism 41 Second locking body 42 Second locked object 101 Electrical junction box 110 Assembly object (cover member) 111 Main Unit 112 Aperture 120 Storage member 130 Electrical connection parts 131 Electrical Connections Cg center of gravity

Claims

1. a protective cover that exposes an opening in a main body of the object to be assembled when in an open position relative to the object to be assembled, and covers the opening with a cover main body when in a closed position relative to the object to be assembled; a rotation shaft provided on one of the protective cover and the object to be assembled; a bearing provided on the other of the protective cover and the assembly object, the bearing enabling the protective cover to rotate around the axis of the rotation shaft between the open position and the closed position; a temporary holding mechanism that temporarily holds the protective cover at the temporary holding position by engaging a first locked body of the protective cover with a first locking body of the object to be assembled at the temporary holding position rotated further in an opening direction than the open position; Equipped with the first locking body has a locking portion on at least one of both ends as viewed in the axial direction of the rotation shaft, which locks the first locked body at the temporary holding position and keeps it at that position; The first locked body has a cantilever-shaped flexible portion that protrudes from the cover body in the opening direction and is capable of bending and deforming in the axial direction, and a locked protrusion that protrudes in the axial direction from a free end of the flexible portion and is locked by the locking portion at the temporary holding position to be maintained in that position, The protective cover assembly structure is characterized in that the engaging protrusion portion is provided with an input portion that applies a force to the abutment position with the engaging portion when the protective cover is rotated in the closing direction from the temporary holding position, receives a reaction force from the abutment position, and causes the flexible portion to flex and deform, thereby overcoming the engaging portion.

2. the flexible portion is disposed opposite the locking portion in the axial direction at the temporary holding position, and the free end is disposed on the opening direction side of the locking portion at the temporary holding position; 2. The protective cover assembly structure according to claim 1, wherein the input portion is a wall surface that is inclined with respect to the axial direction and positioned opposite the engaging portion at the abutment position, and is formed as an inclined surface that reduces the amount of protrusion from the free end of the flexible portion as it moves toward the closing direction.

3. the first locking body has the locking portion at each of the two ends as viewed in the axial direction, 3. The protective cover assembly structure according to claim 2, wherein the protective cover is provided with the first locked body for each of the locking portions.

4. the first locking body has a cantilever shape that protrudes from the main body side of the assembly object as a fixed end, and is formed in a rectangular, one-piece shape with both ends, as viewed in the axial direction, as sides that extend along the protruding direction from the main body, the protective cover is assembled to the assembly object in an assembly direction opposite to a protruding direction of the first engaging body, and has a space surrounded by the cover body, the pair of flexible portions, and the pair of engaged protrusions, the pair of first locked bodies are formed so that the first locking bodies can be inserted into the space from their free ends in conjunction with an assembling operation of the protective cover to the assembling object, 4. The protective cover assembly structure according to claim 3, wherein the bearing has an insertion opening for inserting the rotating shaft in conjunction with the assembling operation of the protective cover to the object to be assembled, and a bearing portion for rotatably supporting the rotating shaft inserted through the insertion opening.

5. 5. The assembly structure of a protective cover according to claim 1, 2, 3 or 4, wherein the protective cover is formed so that the movement of the locked protrusion in the opening direction is locked by the locking portion in the open position, and the protective cover has a center of gravity that is eccentric around the axis of the rotation shaft in the open position toward the closed position rather than vertically above the rotation shaft.

6. 6. The protective cover assembly structure according to claim 5, wherein the locking portion and the locked protrusion are formed in a shape that allows the locking portion to continue to lock the locked protrusion when a force in the opening direction is applied to the protective cover in the open position, thereby stopping the protective cover in the open position.

7. 6. The protective cover assembly structure according to claim 5, further comprising a second engaging body provided on the object to be assembled and a second engaged body provided on the protective cover, and a retaining mechanism for retaining the protective cover in the closed position by engaging these with each other.

8. a protective cover that exposes an opening in a main body of the object to be assembled when in an open position relative to the object to be assembled, and covers the opening with a cover main body when in a closed position relative to the object to be assembled; a rotation shaft provided on one of the protective cover and the object to be assembled; a bearing provided on the other of the protective cover and the assembly object, the bearing enabling the protective cover to rotate around the axis of the rotation shaft between the open position and the closed position; a temporary holding mechanism that temporarily holds the protective cover at the temporary holding position by engaging a first locked body of the object to be assembled with a first locking body of the protective cover at the temporary holding position, the temporary holding position being rotated further in an opening direction than the open position; Equipped with the first locking body has a locking portion on at least one of both ends as viewed in the axial direction of the rotation shaft, which locks the first locked body at the temporary holding position and keeps it at that position; the first locked body has a cantilever-shaped flexible portion that protrudes from the main body of the assembly object in the closing direction and is capable of bending and deforming in the axial direction, and a locked protrusion that protrudes in the axial direction from a free end of the flexible portion and is locked by the locking portion at the temporary holding position to be maintained at that position, The protective cover assembly structure is characterized in that the engaging protrusion portion is provided with an input portion that applies a force to the abutment position with the engaging portion when the protective cover is rotated in the closing direction from the temporary holding position, receives a reaction force from the abutment position, and causes the flexible portion to flex and deform, thereby overcoming the engaging portion.

9. an accommodation member that accommodates in an accommodation chamber an electrical connection member provided with an electrical connection portion that physically and electrically connects a mating conductive component; a cover member that is attached to the housing member to cover the housing chamber with a main body and exposes the electrical connection portion from an opening in the main body; a protective cover that exposes the opening and the electrical connection portion when in an open position relative to the cover member, and covers the opening and the electrical connection portion with a cover body when in a closed position relative to the cover member; a rotation shaft provided on one of the protective cover and the cover member; a bearing provided on the other of the protective cover and the cover member, the bearing enabling the protective cover to rotate about the axis of the rotation shaft between the open position and the closed position; a temporary holding mechanism that temporarily holds the protective cover at the temporary holding position by engaging a first locked body of the protective cover with a first locking body of the cover member at the temporary holding position, the temporary holding position being rotated further in an opening direction than the open position; Equipped with the first locking body has a locking portion on at least one of both ends as viewed in the axial direction of the rotation shaft, which locks the first locked body at the temporary holding position and keeps it at that position; The first locked body has a cantilever-shaped flexible portion that protrudes from the cover body in the opening direction and is capable of bending and deforming in the axial direction, and a locked protrusion that protrudes in the axial direction from a free end of the flexible portion and is locked by the locking portion at the temporary holding position to be maintained in that position, The electrical connection box is characterized in that the engaging protrusion portion is provided with an input portion that, when the protective cover is rotated in the closing direction from the temporary holding position, applies a force to the abutment position with the engaging portion, receives a reaction force from the abutment position, and causes the flexible portion to bend and deform, thereby overcoming the engaging portion.

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