Assembly structure of protective cover and electrical junction box

Abstract

The invention provides an assembly structure of a protective cover and an electrical junction box, which can improve assembly workability. An assembly structure (1) of a protective cover (10) is provided with: a protective cover which exposes an opening (113) of a main body of an object to be assembled (110) at an open position with respect to the object to be assembled, and which covers the opening with a cover main body (11) at a closed position with respect to the object to be assembled; a rotating shaft (21) provided to one of the object to be assembled and the protective cover; and a bearing (22) that is provided to the other one of the object to be assembled and the protective cover and has a gripping portion (23) that grips the rotating shaft, the bearing being configured so that the protective cover can rotate around the axis of the rotating shaft between an open position and a closed position, and the protective cover being configured so as to be able to be assembled to the object to be assembled by inserting the rotating shaft between the gripping portions at the assembly position. The rotating shaft has a recessed portion (21a) formed in a recessed shape with respect to an outer peripheral surface (21s) of the rotating shaft at a portion facing the nip portion in a state where the protective cover is in the assembled position.

Description

Technical Field

[0001] This invention relates to the assembly structure of a protective cover and an electrical junction box. Background Technology

[0002] Conventionally, electrical junction boxes sometimes include a protective cover that covers electrical connections exposed through openings. Such a cover is configured to open about a rotational axis, allowing for connection of conductive components to the electrical connections. For example, Patent Document 1 discloses an electrical junction box comprising a block and a frame housing the block. In the electrical junction box of Patent Document 1, the block has a terminal support portion that supports the busbar's rescue terminal portion in a protruding state, and a first cover support portion adjacent to the terminal support portion. The frame has an insertion hole for the rescue terminal portion to be inserted when the block is housed, and a second cover support portion adjacent to the insertion hole. With the block housed in the frame, the terminal cover supports the block for free rotation by clamping its shaft between the first and second cover support portions.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2014-27724 Summary of the Invention

[0006] The technical problem that the invention aims to solve

[0007] However, in electrical junction boxes like those described in Patent Document 1, there is room for further improvement, for example, in the ease of assembling the protective cover.

[0008] The present invention was made in view of the above circumstances, and its object is to provide an assembly structure for a protective cover and an electrical junction box that can improve assembly workability.

[0009] Technical means for solving problems

[0010] The assembly structure of the protective cover of the present invention is characterized by: a protective cover that exposes the opening of the main body of the assembled object in an open position relative to the assembled object, and covers the opening with the cover body in a closed position relative to the assembled object; a rotating shaft disposed on one of the assembled object and the protective cover; and a bearing disposed on the other of the assembled object and the protective cover, having a clamping portion for clamping the rotating shaft, the bearing being configured to allow the protective cover to rotate about the axis of the rotating shaft between the open position and the closed position; the protective cover being configured to be assembled to the assembled object by inserting the rotating shaft between the clamping portions in an assembly position further away from the open direction than the open position; the rotating shaft having a concave portion at the portion opposite the clamping portion when the protective cover is in the assembly position, the concave portion being formed concave relative to the outer peripheral surface of the rotating shaft.

[0011] The electrical junction box of the present invention is characterized by comprising: a receiving member that receives an electrical connection member having an electrical connection portion, the electrical connection portion of which is physically and electrically connected to a conductive part of a counterpart device, and the receiving member exposing the electrical connection portion from an opening; a protective cover that, in an open position relative to the receiving member, exposes the opening of the receiving member and the electrical connection portion, and in a closed position relative to the receiving member, covers the opening and the electrical connection portion with a cover body; and a rotating shaft disposed on one of the receiving member and the protective cover; The protective cover is provided in the other of the receiving member and the protective cover, and has a clamping portion for clamping the rotating shaft. The bearing is configured to allow the protective cover to rotate about the axis of the rotating shaft between the open position and the closed position. The protective cover is configured to be assembled to the receiving member by inserting the rotating shaft into the clamping portion at an assembly position further from the open direction than the open position. The rotating shaft has a concave portion at the portion opposite to the clamping portion when the protective cover is in the assembly position. The concave portion is formed concave relative to the outer peripheral surface of the rotating shaft.

[0012] Invention Effects

[0013] The assembly structure of the protective cover and the electrical junction box of the present invention can improve the ease of assembly. Attached Figure Description

[0014] Figure 1 This is an exploded perspective view showing the assembly structure of the protective cover and the electrical junction box involved in the embodiment.

[0015] Figure 2This is a perspective view showing the assembly structure of the protective cover and the electrical junction box involved in the embodiment, indicating the protective cover located in the assembly position.

[0016] Figure 3 This is a perspective view of the protective cover illustrating an embodiment.

[0017] Figure 4 This is a top view illustrating the cover component of an embodiment.

[0018] Figure 5 yes Figure 2 A sectional view along line AA.

[0019] Figure 6 This is a top view showing the assembly structure of the protective cover according to an embodiment, indicating the protective cover in the assembled position.

[0020] Figure 7 This is a perspective view of the assembly structure of the protective cover in the embodiment, showing the protective cover in the assembly position.

[0021] Figure 8 This is a perspective view showing the assembly structure of the protective cover and the electrical junction box according to an embodiment, with the protective cover in the open position.

[0022] Figure 9 This is a perspective view of the assembly structure of the protective cover and the electrical junction box of the embodiment from another angle, showing the protective cover in the open position.

[0023] Figure 10 yes Figure 8 BB line section view.

[0024] Figure 11 This is a perspective view showing the assembly structure of the protective cover and the electrical junction box according to an embodiment, with the protective cover in the closed position.

[0025] Explanation of reference numerals in the attached figures

[0026] 1. Assembly Structure

[0027] 10 Protective shields

[0028] 11. Main body of the cover

[0029] 12 Space Department

[0030] 21 Rotation axis

[0031] 22 bearings

[0032] 23 Clamping section

[0033] 23a First clamping part

[0034] 23b Second clamping part

[0035] 30 Temporary maintenance agencies

[0036] 31 First card fixation body

[0037] 31a Caliper section

[0038] 32 First locked body

[0039] 32a Flexible section

[0040] 32b is locked protrusion

[0041] 32c Input Section

[0042] 40. Maintenance mechanism

[0043] 41 Second Card Fixing Body

[0044] 42 Second locked body

[0045] 101 Electrical Junction Box

[0046] 110 Assembly Object (Containing Components)

[0047] 111 Cover Components

[0048] 112 Main body

[0049] 113 Opening

[0050] 120 Electrical connection components

[0051] 121 Electrical connection part

[0052] Cg Center of Gravity Detailed Implementation

[0053] Hereinafter, the assembly structure of the protective cover and the electrical junction box of embodiments of the present invention will be described in detail with reference to the accompanying drawings. Furthermore, the present invention is not limited to this embodiment. Additionally, the structural elements of the following embodiments include elements that are readily conceived by those skilled in the art, or substantially the same elements.

[0054] [Example]

[0055] Reference Figures 1 to 11 The embodiments are described below. Figure 1 This is an exploded perspective view showing the assembly structure of the protective cover and the electrical junction box according to an embodiment. Figure 2 This is a perspective view showing the assembly structure of the protective cover and the electrical junction box according to an embodiment. Figure 3 This is a perspective view of the protective cover illustrating an embodiment. Figure 4 This is a top view illustrating the cover component of an embodiment. Figure 5 yes Figure 2AA-line sectional view, Figure 6 This is a top view illustrating the assembly structure of the protective cover according to an embodiment. Figure 7 This is a perspective view of the assembly structure of the protective cover in the embodiment, viewed from another angle. Figure 8 This is a perspective view showing the assembly structure of the protective cover and the electrical junction box according to the embodiment. Figure 9 This is a perspective view of the assembly structure of the protective cover and the electrical junction box of the embodiment from other angles. Figure 10 yes Figure 8 BB line section view, Figure 11 This is a perspective view showing the assembly structure of the protective cover and the electrical junction box according to the embodiment. Additionally, Figure 6 and Figure 7 A protective cover indicating the assembly location. Additionally, Figure 8 and Figure 9 The protective cover indicates the open position. Additionally, Figure 11 The protective cover indicates the closed position.

[0056] like Figure 1 As shown, the assembly structure 1 of the protective cover 10 in the embodiment includes a protective cover 10, a rotating shaft 21, and a bearing 22. The protective cover 10 is a component that exposes the opening 113 of the assembly object 110 in the open position relative to the assembly object 110, and covers the opening 113 with the cover body 11 in the closed position relative to the assembly object 110.

[0057] In one embodiment, an electrical junction box 101 is shown as an example of an assembly structure 1 for the protective cover 10. The electrical junction box 101 is referred to as a relay box, junction box, etc. The electrical junction box 101 is connected, for example, via wires to a power source such as a battery and to various electrical devices installed within the vehicle. The electrical junction box 101 distributes power supplied from the power source to the various electrical devices within the vehicle.

[0058] The electrical junction box 101 includes a housing component, which is the assembly object 110 of the protective cover 10. In the following description, the "assembly object 110" will sometimes be referred to as the "housing component 110". In an embodiment, the housing component 110 includes a cover component 111 and a main body 112. The main body 112 is a box with an opening at the top, configured to accommodate electronic components (relays, etc.), electrical connection components 120, etc.

[0059] The electrical connection component 120 is, for example, a metal busbar, and is provided with an electrical connection portion 121 that is physically and electrically connected to the conductive component of the other party. The cover component 111 is a component that covers the opening of the main body 112 from above. The cover component 111 is assembled to the main body 112 in such a way that an opening 113 is formed in the cover component 111, and the electrical connection portion 121 is exposed through the opening 113.

[0060] In this embodiment, a rotating shaft 21 is disposed on a receiving member 110 (cover member 111), and a bearing 22 is disposed on a protective cover 10. The bearing 22 has a clamping portion 23 for clamping the rotating shaft 21, configured to allow the protective cover 10 to rotate about the axis of the rotating shaft 21 between an open position and a closed position. In the open position relative to the cover member 111, the protective cover 10 exposes the opening 113 of the cover member 111, and in the closed position relative to the cover member 111, the cover body 11 covers the opening 113.

[0061] Furthermore, in the following description, when rotating about the axis 21, the direction along the direction from the open position to the closed position is referred to as the closing direction, and the direction along the direction from the closed position to the open position is referred to as the opening direction.

[0062] The assembly structure 1 of the protective cover 10 in this embodiment includes a temporary holding mechanism 30, which temporarily holds the protective cover 10 in an assembly position further away from the open position than the open position. Here, the assembly position, as detailed below, is the position where the protective cover 10 is assembled relative to the cover member 111 of the receiving member 110 (the object to be assembled 110), and is located on the opposite side of the closed position relative to the open position. In the assembly position, the protective cover 10 also exposes the opening 113.

[0063] The assembly position in this embodiment corresponds to the position after the protective cover 10 is rotated 90 degrees from the closed position to the open position. Furthermore, the open position refers to the position between the closed position and the assembly position, and is the position where the opening 113 of the protective cover 10 is exposed when the temporary holding mechanism 30 is released from the assembly position.

[0064] The temporary holding mechanism 30 temporarily holds the protective cover 10 in the assembled position by engaging the first locking body 32 of the protective cover 10 with the first locking body 31 of the cover component 111. Figure 1 As shown, at least one of the two ends of the first locking body 31 viewed axially from the rotation shaft 21 has a locking portion 31a that locks the first locked body 32 in a temporary holding position and holds it in that position. Figure 5 In this embodiment, the first locking body 31 is formed as a plate-shaped portion protruding from the cover member 111 toward the side opposite to the main body 112 (above).

[0065] More specifically, the first locking body 31 is formed as a cantilever beam shape with the cover member 111 side as the fixed end, and is formed as a rectangular sheet shape with both ends as edges along the protruding direction from the cover member 111 when viewed axially from the rotation axis 21. In the embodiment of the first locking body 31, a portion of its edge is used as a locking part 31a. The first locking body 31 of the embodiment has locking parts 31a at both ends when viewed axially from the rotation axis 21. In the protective cover 10, a first locked body 32 is provided for each locking part 31a.

[0066] The first locking body 32 has: a cantilever beam-shaped flexible portion 32a that protrudes from the cover body 11 toward the opening direction and is capable of axially flexing toward the rotation axis 21; and a locking protrusion 32b that protrudes axially from the free end of the flexible portion 32a along the rotation axis 21 and is locked in a temporary holding position to the locking portion 31a, thereby holding it in that position. Figure 3 and Figure 5 ).

[0067] The flexible portion 32a is positioned opposite the locking portion 31a along the axial direction of the rotation axis 21 at the assembled position. Furthermore, at the assembled position, the free end of the flexible portion 32a is positioned further towards the opening direction than the locking portion 31a. That is, in this temporary holding mechanism 30, the protective cover 10 is held in the assembled position by the cover body 11 at the assembled position and the locking protrusion 32b clamping the locking portion 31a.

[0068] The protective cover 10 is configured to be assembled to the cover component 111 by inserting the rotating shaft 21 between the clamping portions 23 at the assembly position. For example... Figure 1 and Figure 2 As shown, the protective cover 10 is assembled to the cover component 111 in an assembly direction opposite to the protruding direction of the first locking body 31.

[0069] Figure 4 This is a top view of the cover component 111 viewed from the side of the main body 112. Figure 4 For ease of explanation, the illustration of protective cover 10 has been omitted. (See attached image.) Figure 4 As shown, the rotating shaft 21 has a concave portion 21a formed in a concave shape relative to the outer peripheral surface 21s of the rotating shaft 21. The concave portion 21a is formed in the rotating shaft 21 at the portion opposite to the clamping portion 23 when the protective cover 10 is in the assembled position.

[0070] In this embodiment, the rotating shaft 21 is formed as a cylindrical shape extending along the axial direction, and the concave portion 21a is formed as a notch formed by partially cutting away the cylindrical shape. In this embodiment, the bottom surface of the concave portion 21a is formed as a flat surface.

[0071] like Figure 1and Figure 3 As shown, when viewed axially from the rotation axis 21, the clamping portion 23 of the embodiment includes two first clamping portions 23a disposed on one side relative to the rotation axis 21 and a second clamping portion 23b disposed on the other side relative to the rotation axis 21. The first clamping portions 23a and the second clamping portion 23b are arranged alternately along the axial direction. That is, the second clamping portion 23b is located axially between the two first clamping portions 23a.

[0072] In addition, such as Figure 4 As shown, the concave portion 21a in this embodiment includes two first concave portions 21aa and one second concave portion 21ab. The first concave portions 21aa are formed in a one-to-one relationship with the first clamping portion 23a at the portion opposite to the first clamping portion 23a when the protective cover 10 is in the assembled position. The second concave portion 21ab is formed at the portion opposite to the second clamping portion 23b when the protective cover 10 is in the assembled position. That is, in this embodiment, the second concave portion 21ab is located between the two first concave portions 21aa in the axial direction of the rotation shaft 21.

[0073] In the rotating shaft 21, with the protective cover 10 in the assembled position, the width W1 of the rotating shaft 21 in the clamping direction of the clamped portion 23 is formed to be smaller than the width W2 in the direction orthogonal to both the clamping and axial directions. Figure 5 Furthermore, the first concave portion 21aa is formed with a width W3 (axial length) sufficient to accommodate a portion of the corresponding first clamping portion 23a inside, and the second concave portion 21ab is formed with a width W4 (axial length) sufficient to accommodate a portion of the second clamping portion 23b inside. Figure 4 In addition, the concave portion 21a is formed to a depth such that the protective cover 10 is not easily detached when clamped by the clamping portion 23 of the bearing 22.

[0074] like Figure 3 As shown, the first clamping portion 23a includes a first bearing portion 23aa, a first protruding portion 23ab, and a first tip portion 23ac. The first bearing portion 23aa, the first protruding portion 23ab, and the first tip portion 23ac are sequentially arranged from the cover body 11 side, forming a plate-like structure overall. The second clamping portion 23b includes a second bearing portion 23ba, a second protruding portion 23bb, and a second tip portion 23bc. The second bearing portion 23ba, the second protruding portion 23bb, and the second tip portion 23bc are sequentially arranged from the cover body 11 side, forming a plate-like structure overall.

[0075] The first bearing portion 23aa is slidably assembled onto the rotating shaft 21, together with the second bearing portion 23ba, clamping the rotating shaft 21. In this embodiment, the first bearing portion 23aa is formed as an arc-shaped portion, with its facing side opposite to the rotating shaft 21 recessed. Similarly, the second bearing portion 23ba is formed as an arc-shaped portion, with its facing side opposite to the rotating shaft 21 recessed. The protective cover 10 rotates about the axis of the rotating shaft 21 by sliding the first bearing portion 23aa and the second bearing portion 23ba against the outer peripheral surface 21s of the rotating shaft 21.

[0076] When viewed axially from the rotation shaft 21, the first protruding portion 23ab is formed as an arc-shaped portion protruding toward the second clamping portion 23b, and when viewed axially from the rotation shaft 21, the second protruding portion 23bb is formed as an arc-shaped portion protruding toward the first clamping portion 23a. When viewed axially from the rotation shaft 21, the gap between the first protruding portion 23ab and the second protruding portion 23bb is narrower than the diameter of the rotation shaft 21.

[0077] When viewed axially from the rotation axis 21, the first top portion 23ac is inclined such that the surface on the side of the second clamping portion 23b is inclined further away from the second clamping portion 23b as it moves towards the top from the base end. When viewed axially from the rotation axis 21, the second top portion 23bc is inclined such that the surface on the side of the first clamping portion 23a is inclined further away from the first clamping portion 23a as it moves towards the top from the base end. That is, when viewed axially from the rotation axis 21, the distance between the first top portion 23ac and the second top portion 23bc is narrower as it gets closer to the cover body 11. When viewed axially from the rotation axis 21, the distance between the first protrusion 23ab and the second protrusion 23bb is narrower than the distance between other portions of the first clamping portion 23a and the second clamping portion 23b.

[0078] The bearing 22 houses the rotating shaft 21 between the first top portion 23ac and the second top portion 23bc. The gap between the first protrusion 23ab and the second protrusion 23bb is pushed open by the rotating shaft 21. The rotating shaft 21 passes over the first protrusion 23ab and the second protrusion 23bb and is clamped between the first bearing portion 23aa and the second bearing portion 23ba, thereby being assembled to the rotating shaft 21.

[0079] In the assembly structure 1 of the protective cover 10 in this embodiment, a first concave portion 21aa and a second concave portion 21ab are formed on the rotating shaft 21. Therefore, when the bearing 22 is assembled onto the rotating shaft, the amount of displacement when the first clamping portion 23a and the second clamping portion 23b clamp the rotating shaft can be reduced. That is, when the rotating shaft 21 passes between the first protruding portion 23ab and the second protruding portion 23bb, the first protruding portion 23ab passes through the first concave portion 21aa, and the second protruding portion 23bb passes through the second concave portion 21ab. The amount of displacement of the bearing 22 required for the rotating shaft 21 to pass through the gap between the first protruding portion 23ab and the second protruding portion 23bb is reduced by the amount of concavity of the first concave portion 21aa and the second concave portion 21ab formed on the rotating shaft 21. Therefore, the force required by the operator to move the rotating shaft 21 through the gap between the first protruding portion 23ab and the second protruding portion 23bb to between the first bearing portion 23aa and the second bearing portion 23ba can be reduced. Therefore, the assembly structure 1 of the protective cover 10 in the embodiment can improve the assembly workability when assembling the protective cover 10 to the assembly object 110. In addition, when the rotating shaft 21 is inserted between the first clamping portion 23a and the second clamping portion 23b, the first concave portion 21aa and the second concave portion 21ab also function as guide portions to guide the first clamping portion 23a and the second clamping portion 23b to the predetermined positions.

[0080] In addition, such as Figure 5 and Figure 6 As shown, in the embodiment of the protective cover 10, the locking part 31a is clamped by the cover body 11 and the locking protrusion 32b in the assembled position. Furthermore, in the assembled position, the protective cover 10 is in a state where the locking part 31a is clamped by the cover body 11 and the locking protrusion 32b for each first locking body 32. That is, the protective cover 10 has a space 12 surrounded by the cover body 11, a pair of flexible parts 32a, and a pair of locking protrusions 32b, and when the protective cover 10 is in the assembled position, the first locking body 31 is inserted into this space 12.

[0081] The protective cover 10 is assembled to the cover component 111 by inserting the rotating shaft 21 between the clamping portions 23 at the assembly position. The first locking body 31 is inserted from its free end into the space portion 12 in conjunction with the assembly action of the protective cover 10 onto the cover component 111. That is, a pair of first locking bodies 32 are configured such that the first locking body 31 is inserted from its free end into the space portion 12 in conjunction with the assembly action of the protective cover 10 onto the cover component 111. By inserting the first locking body 31 into the space portion 12, the protective cover 10 is temporarily held in the assembly position by the temporary holding mechanism 30. Figure 7 ).

[0082] For example, after the electrical junction box 101 is manufactured at one location, it will be transported to another location to physically connect and electrically wire the conductive component to the electrical connection part 121. In the embodiment of the electrical junction box 101, the protective cover 10 is temporarily held in the assembled position and transported from the manufacturing location to the location where the connection operation with the conductive component is performed. After connecting the conductive component, the operator moves the protective cover 10 from the assembled position to the closed position.

[0083] In the temporary holding mechanism 30 of the embodiment, the locked protrusion 32b has an input portion 32c. When the protective cover 10 in the assembled position is rotated in the closing direction, the input portion 32c applies force to its contact position with the locking portion 31a, thereby bearing the reaction force from the contact position with the locking portion 31a, and causing the flexible portion 32a to flex and deform, thus passing over the locking portion 31a. Figure 3 ).

[0084] The input portion 32c is a wall surface that is axially inclined relative to the rotation axis 21 and is positioned opposite the locking portion 31a at the contact position. It is formed such that the amount of protrusion from the free end of the flexible portion 32a decreases as it moves toward the closing direction. Therefore, in the protective cover 10, when a force in the closing direction is applied at the assembled position, the input portion 32c of the locked protrusion 32b abuts against the locking portion 31a and applies force. The input portion 32c receives the reaction force from the contact position abutting against the locking portion 31a, causing the flexible portion 32a to flex and deform. In the protective cover 10 of this embodiment, by continuously applying a force in the closing direction, the amount of flexural deformation of the flexible portion 32a increases, and the locked protrusion 32b passes over the locking portion 31a. With this structure, the protective cover 10 can reach the open position and can be moved to the closed position.

[0085] In the embodiment, the locked protrusion 32b is formed with an input portion 32c, which is a cylinder having an axis parallel to the axis of the rotation axis 21 as the main body, and the free end side of the cylinder is an inclined surface.

[0086] In addition, when performing maintenance and inspection of the electrical junction box 101, the operator can rotate the protective cover 10 from the closed position to the open position. For example... Figures 8 to 10 As shown, when the protective cover 10 is in the open position, the locking part is locked by the locking protrusion 32b moving in the opening direction. According to this structure, the assembly structure 1 of the protective cover 10 of the embodiment can prevent the protective cover 10 from returning to the assembly position once it has moved from the assembly position to the open position.

[0087] The locking part 31a and the locked protrusion 32b are shaped such that when a force in the opening direction is applied to the protective cover 10 in the open position, the locking part 31a can continuously lock the locked protrusion 32b, thereby stopping the protective cover 10 in the open position. Specifically, as follows... Figure 10 As shown, by bringing the arc-shaped outer peripheral surface of the main body of the locked protrusion 32b into contact with the locking part 31a, the locking part 31a can continuously lock the locked protrusion 32b.

[0088] Furthermore, when the protective cover 10 is in the range from the open position to the closed position, the clamping part 23 of the bearing 22 does not clamp the bottom surface of the concave part 21a but clamps the outer peripheral surface 21s of the rotating shaft 21. Figure 7 That is, when the protective cover 10 is in the range from the open position to the closed position, the first bearing portion 22aa and the second bearing portion 22ba clamp the outer peripheral surface 21s of the rotating shaft 21. When the protective cover 10 is in the range from the open position to the closed position, if it is desired to remove the protective cover 10 from the rotating shaft 21, the protruding portions (first protruding portion 23ab and second protruding portion 23bb) of the bearing 22 do not pass through the concave portions (first concave portion 21aa and second concave portion 21ab) of the rotating shaft 21. Therefore, compared to the case where it is desired to remove the protective cover 10 from the rotating shaft 21 in the assembled position, it is necessary to push the first protruding portion 23ab and the second protruding portion 23bb apart more. Therefore, when the protective cover 10 is in the range from the open position to the closed position, the clamping portion 23 becomes more difficult to detach from the rotating shaft 21 than when the protective cover 10 is in the assembled position. The temporary holding mechanism 30 of the embodiment can restrict the protective cover 10 from returning to the assembled position from the open position, thus keeping the protective cover 10 in a state where it is difficult to detach from the rotation axis 21.

[0089] In addition, such as Figure 8 and Figure 9 As shown, in this embodiment, the assembly structure 1 of the protective cover 10 and the electrical junction box 101 are provided with a retaining mechanism 40 for holding the protective cover 10 in a closed position. The retaining mechanism 40 includes: a second locking body 41 disposed on the cover member 111 of the receiving member 110 (assembly object 110); and a second locked body 42 disposed on the protective cover 10, and the protective cover 10 is held in a closed position by locking the second locking body 41 and the second locked body 42 against each other. Figure 11 ).

[0090] The second locking body 41 has a groove 41a, and a portion of the peripheral wall of the groove 41a is used as a locking part 41b. The second locked body 42 has: a flexible sheet 42a, which is cantilever beam shaped and formed into a flexible sheet shape; and a claw 42b, which protrudes from a plane of the flexible sheet 42a.

[0091] In addition, such as Figure 10 As shown, the protective cover 10 is formed such that, in the open position, it has a center of gravity Cg that is eccentric to the closed position side above the vertical direction of the rotation axis 21. Therefore, if no force is applied, the protective cover 10 in the open position will return to the closed position due to its own weight. Figure 11 ).

[0092] Furthermore, the above description used an example of a structure in which a rotating shaft 21 is provided on the assembly object 110 and a bearing 22 is provided on the protective cover 10, but this structure is not limited to that. For example, it is also possible to have a structure in which a rotating shaft 21 is provided on the protective cover 10 and a bearing 22 is provided on the assembly object 110.

[0093] As described above, the assembly structure 1 of the protective cover 10 of the embodiment includes: a protective cover 10, which exposes the opening 113 of the main body of the assembly object 110 in an open position relative to the assembly object 110, and covers the opening 113 by the cover body 11 in a closed position relative to the assembly object 110; a rotating shaft 21 disposed on one of the assembly object 110 and the protective cover 10; and a bearing 22 disposed on the other of the assembly object 110 and the protective cover 10 and having a clamping mechanism for holding the rotating shaft 21. The holding part 23 and the bearing 22 are configured to allow the protective cover 10 to rotate about the axis of the rotating shaft 21 between the open position and the closed position. The protective cover 10 is configured to be assembled to the assembly object 110 by inserting the rotating shaft 21 between the holding parts 23 in an assembly position that is closer to the opening direction than the open position. When the protective cover 10 is in the assembly position, the rotating shaft 21 has a concave part 21a in the part opposite to the holding part 23. The concave part 21a is formed to be concave relative to the outer peripheral surface 21s of the rotating shaft 21.

[0094] In the assembly structure 1 of the protective cover 10 of the embodiment, the rotating shaft 21 has a concave portion 21a formed on the portion opposite to the clamping portion 23 when the protective cover 10 is in the assembly position. The assembly structure 1 of the protective cover 10 of the embodiment can reduce the amount of displacement when the clamping portion 23 clamps the rotating shaft when assembling the bearing 22 onto the rotating shaft. The assembly structure 1 of the protective cover 10 of the embodiment allows for easy assembly of the bearing 22 onto the rotating shaft 21, thus improving assembly workability.

[0095] Furthermore, in the assembly structure 1 of the protective cover 10 in the embodiment, when viewed from the axial direction of the rotation axis 21, the clamping portion 23 includes two first clamping portions 23a disposed on one side relative to the rotation axis 21 and a second clamping portion 23b disposed on the other side relative to the rotation axis 21. The first clamping portions 23a and the second clamping portions 23b are arranged alternately along the axial direction. The concave portion 21a includes a first concave portion 21aa opposite to the first clamping portion 23a and a second concave portion 21ab opposite to the second clamping portion 23b in the rotation axis 21 when the protective cover 10 is in the assembled position. The bottom surfaces of the first concave portion 21aa and the second concave portion 21ab are each formed as flat surfaces.

[0096] In the assembly structure 1 of the protective cover 10 in the embodiment, when the protective cover 10 is in the assembly position, concave portions 21a (first concave portion 21aa, second concave portion 21ab) are formed on the portion opposite to the first clamping portion 23a and the portion opposite to the second clamping portion 23b. The rotating shaft 21 is inserted between the first clamping portion 23a and the second clamping portion 23b in a manner that expands the gap between the first clamping portion 23a and the second clamping portion 23b. However, in the assembly structure 1 of the protective cover 10 in the embodiment, when assembling the protective cover 10, the rotating shaft 21 is inserted between the first clamping portion 23a and the second clamping portion 23b with the concave portions 21a (first concave portion 21aa, second concave portion 21ab) facing the clamping portions 23 (first clamping portion 23a, second clamping portion 23b). The bearing 22 is assembled in such a way that it clamps the portion of the rotating shaft 21 whose width is locally reduced by forming a concave portion 21a. Therefore, the amount of displacement of the bearing 22 when it is assembled to the rotating shaft 21 can be reduced. The assembly structure 1 of the protective cover 10 of the embodiment can easily assemble the bearing 22 to the rotating shaft 21, thus improving the ease of assembly.

[0097] Furthermore, the assembly structure 1 of the protective cover 10 in the embodiment also includes a temporary holding mechanism 30 for temporarily holding the protective cover 10 in the assembly position. The temporary holding mechanism 30 includes a first locking body 31 formed on the assembly object 110 and a first locked body 32 formed on the protective cover 10. At least one of the two ends of the first locking body 31 in the axial direction of the rotation shaft 21 has a locking portion 31a. The locking portion 31a temporarily holds the protective cover 10 in the assembly position by locking the first locked body 32. The first locked body 32 has a flexible portion 32a in the shape of a cantilever beam. The cover body 11 protrudes towards the side opposite to the closed position and is capable of axial flexural deformation; and a locking protrusion 32b, which protrudes axially from the free end of the flexible portion 32a and is locked to the locking portion 31a. The locking protrusion 32b has an input portion 32c. When the protective cover 10 in the assembled position is rotated toward the closed position, the input portion 32c applies force to the contact position where it abuts against the locking portion 31a, thereby receiving the reaction force from the contact position, and thus causing the flexible portion 32a to flex and deform and pass over the locking portion 31a.

[0098] The assembly structure 1 of the protective cover 10 in the embodiment includes a temporary holding mechanism 30 for temporarily holding the protective cover 10 in an assembled position. The temporary holding mechanism 30 includes a first locking body 31 formed on the assembly object 110 and a first locked body 32 formed on the protective cover 10. According to this structure, for example, a worker delivering a product using the assembly structure 1 with the protective cover 10 applied can deliver the product with the protective cover 10 temporarily held in the assembled position (i.e., the protective cover 10 in the open state). Moreover, the worker can start work from the state where the protective cover 10 is temporarily held in the assembled position, thus enabling efficient work.

[0099] Furthermore, in the assembly structure 1 of the protective cover 10 in the embodiment, when the protective cover 10 is in the assembly position, the flexible part 32a is axially opposed to the locking part 31a, and in the assembly position, the free end is arranged on the side opposite to the closed position side relative to the locking part 31a. The input part 32c is a wall surface that is inclined relative to the axis and is arranged opposite to the locking part 31a in the abutment position, and is formed as an inclined surface such that the amount of protrusion from the free end of the flexible part 32a decreases as it moves toward the closed position side.

[0100] In the assembly structure 1 of the protective cover 10 in the embodiment, the input part 32c is formed as an inclined surface, which can reduce the force required to rotate the protective cover 10 from the assembled position to the closed position and improve workability.

[0101] Furthermore, in the assembly structure 1 of the protective cover 10 in the embodiment, when a force is applied to the protective cover 10 in the open position toward the side opposite to the closed position, the locking part 31a abuts against the locked protrusion 32b, thereby restricting the protective cover 10 from rotating from the open position toward the assembly position.

[0102] In the embodiment, the assembly structure 1 of the protective cover 10 is secured by the locking part 31a and the locking protrusion 32b, thereby preventing the protective cover 10 from rotating from the open position to the assembled position. The assembly structure 1 of the protective cover 10 of the embodiment can prevent the protective cover 10 from being held in the assembled position (the state of the protective cover being open), thereby improving safety.

[0103] Furthermore, the electrical junction box 101 according to the embodiment includes: a receiving member 110 that receives an electrical connection member having an electrical connection portion, the electrical connection portion of which is physically and electrically connected to a conductive part of a counterpart device, and the receiving member 110 exposes the electrical connection portion from an opening 113; a protective cover 10 that exposes the opening 113 and the electrical connection portion of the receiving member 110 in an open position relative to the receiving member 110, and covers the opening 113 and the electrical connection portion with a cover body 11 in a closed position relative to the receiving member 110; and a rotating shaft 21 disposed in one of the receiving member 110 and the protective cover 10. The bearing 22 is disposed in the other of the housing member 110 and the protective cover 10 and has a clamping portion 23 for clamping the rotating shaft 21. The bearing 22 is configured to allow the protective cover 10 to rotate about the axis of the rotating shaft 21 between the open position and the closed position. The protective cover 10 is configured to be assembled to the housing member 110 by inserting the rotating shaft 21 between the clamping portions 23 in an assembly position that is closer to the opening direction than the open position. The rotating shaft 21 has a concave portion 21a at the portion opposite to the clamping portion 23 when the protective cover 10 is in the assembly position. The concave portion 21a is formed to be concave relative to the outer peripheral surface 21s of the rotating shaft 21.

[0104] In the electrical junction box 101 of this embodiment, a recessed portion 21a is formed on the portion of the rotating shaft 21 opposite the clamping portion 23 when the protective cover 10 is in the assembled position. When assembling the bearing 22 onto the rotating shaft, the electrical junction box 101 of this embodiment can reduce the amount of displacement when the clamping portion 23 clamps the rotating shaft. The electrical junction box 101 of this embodiment allows for easy assembly of the bearing 22 onto the rotating shaft 21, thus improving assembly workability.

[0105] [Modifications of the Embodiments]

[0106] Furthermore, in the above embodiments, the example of using a temporary holding mechanism 30 including a first locking body 31 formed on the assembly object 110 and a first locked body 32 formed on the protective cover 10 has been described, but the structure is not limited to this. For example, the temporary holding mechanism 30 may also include a first locking body 31 formed on the protective cover 10 and a first locked body 32 formed on the assembly object 110. In this case, the temporary holding mechanism 30 is configured to temporarily hold the protective cover 10 in the assembly position by locking the first locked body 32 of the assembly object to the first locking body 31 of the protective cover 10 in the assembly position. For example, the first locking body 31 protrudes from the protective cover 10 toward the opening direction, and the first locked body 32 protrudes from the assembly object 110 toward the upward direction, thus clamping the first locking body 31 of the protective cover 10 in the assembly position. The first locking body 32 has: a flexible portion 32a in the shape of a cantilever beam, which is capable of flexing and deforming axially; and a locking protrusion 32b, which protrudes axially from the free end of the flexible portion 32a and is locked to the locking portion 31a. In addition, the locking protrusion 32b has an input portion 32c, which, when the protective cover 10 in the assembly position is rotated toward the closed position, applies a force to the contact position that abuts against the locking portion 31a, thereby receiving a reaction force from the contact position, and causing the flexible portion 32a to flex and deform and pass over the locking portion 31a.

[0107] The assembly structure 1 of the modified protective cover 10 further includes a temporary holding mechanism 30 for temporarily holding the protective cover 10 in the assembled position. The temporary holding mechanism 30 includes a first locking body 31 formed on the protective cover 10 and a first locked body 32 formed on the assembled object 110. At least one of the two ends of the first locking body 31 in the axial direction of the rotation shaft 21 has a locking portion 31a. The locking portion 31a temporarily holds the protective cover 10 in the assembled position by locking the first locked body 32. The first locked body 32 has a cantilever beam. The flexible portion 32a protrudes from the assembly object 110 toward the side opposite to the closed position and is capable of axial flexural deformation; and the locking protrusion 32b protrudes axially from the free end of the flexible portion 32a and is locked to the locking portion 31a. When the protective cover 10 in the assembly position is rotated toward the closed position, the locking protrusion 32b exerts a force on the contact position that abuts against the locking portion 31a, thereby bearing the reaction force of the force from the contact position, thereby causing the flexible portion 32a to flex and deform and pass over the locking portion 31a.

[0108] The modified assembly structure 1 of the protective cover 10 includes a temporary holding mechanism 30 for temporarily holding the protective cover 10 in the assembly position. The temporary holding mechanism 30 includes a first locking body 31 formed on the protective cover 10 and a first locked body 32 formed on the assembly object 110. In this structure, for example, an operator delivering a product using the assembly structure 1 with the protective cover 10 applied can deliver the product with the protective cover 10 temporarily held in the assembly position (i.e., the protective cover 10 open). Furthermore, the operator can begin work from the state where the protective cover 10 is temporarily held in the assembly position, thus enabling efficient work.

[0109] The contents disclosed in the above embodiments and variations can be appropriately combined to perform the task.

Claims

1. An assembly structure for a protective cover, characterized in that, include: A protective cover, wherein in an open position relative to the assembled object, the opening of the main body of the assembled object is exposed, and in a closed position relative to the assembled object, the opening is covered by the cover body; A rotating shaft, wherein the rotating shaft is disposed on one of the assembled object and the protective cover; as well as A bearing, disposed in one of the assembled object and the protective cover, and having a clamping portion for clamping the rotating shaft. The bearing is configured to allow the protective cover to rotate about the axis of the rotation between the open position and the closed position. The protective cover is configured such that the rotating shaft is inserted between the clamping portions at an assembly position further away from the opening direction than the opening position, thereby allowing the protective cover to be assembled onto the object to be assembled. The rotating shaft has a concave portion at the part opposite the clamping part when the protective cover is in the assembled position, and the concave portion is formed in a concave shape relative to the outer peripheral surface of the rotating shaft.

2. The assembly structure of the protective cover according to claim 1, characterized in that, When viewed from the axial direction of the rotation axis, the clamping portion includes two first clamping portions disposed on one side relative to the rotation axis and a second clamping portion disposed on the other side relative to the rotation axis. The first clamping portion and the second clamping portion are arranged offset from each other along the axial direction. On the rotating shaft, the concave portion includes a first concave portion opposite to the first clamping portion and a second concave portion opposite to the second clamping portion when the protective cover is in the assembled position. The bottom surfaces of the first concave portion and the second concave portion are each formed as flat surfaces.

3. The assembly structure of the protective cover according to claim 1, characterized in that, It also includes a temporary holding mechanism for temporarily holding the protective cover in the assembled position. The temporary holding mechanism includes a first locking body formed on the assembled object and a first locked body formed on the protective cover. The first locking body has a locking portion at at least one of its two ends along the axial direction of the rotating shaft, the locking portion temporarily holding the protective cover in the assembled position by locking the first locking body. The first locking body has: a cantilever beam-shaped flexible portion that protrudes from the cover body toward a side opposite to the closed position and is capable of flexing and deforming axially; and a locking protrusion that protrudes axially from the free end of the flexible portion and is locked into the locking portion. The locking protrusion has an input portion. When the protective cover in the assembly position is rotated toward the closed position, the input portion applies a force to the contact position that abuts the locking portion, thereby receiving the reaction force from the contact position, and causing the flexible portion to flex and deform to pass over the locking portion.

4. The assembly structure of the protective cover according to claim 1, characterized in that, It also includes a temporary holding mechanism for temporarily holding the protective cover in the assembled position. The temporary holding mechanism includes a first locking body formed on the protective cover and a first locked body formed on the assembled object. The first locking body has a locking portion at at least one of its two ends along the axial direction of the rotating shaft, the locking portion temporarily holding the protective cover in the assembled position by locking the first locking body. The first locking body has: a cantilever beam-shaped flexible portion that protrudes from the assembled object toward a side opposite to the closed position and is capable of flexing and deforming axially; and a locking protrusion that protrudes axially from the free end of the flexible portion and is locked into the locking portion. The locking protrusion has an input portion. When the protective cover in the assembly position is rotated toward the closed position, the input portion applies a force to the contact position that abuts the locking portion, thereby receiving the reaction force from the contact position, and causing the flexible portion to flex and deform to pass over the locking portion.

5. The assembly structure of the protective cover according to claim 3 or 4, characterized in that, With the protective cover in the assembled position, the flexible portion is positioned opposite the locking portion in the axial direction, and in the assembled position, the free end is positioned relative to the locking portion on the side opposite to the closed position side. The input section is a wall surface that is inclined relative to the axial direction and is disposed opposite to the locking section at the abutment position, and the input section is formed as an inclined surface such that the amount of protrusion from the free end of the flexible section decreases as it moves toward the closed position side.

6. The assembly structure of the protective cover according to claim 3 or 4, characterized in that, When a force is applied to the protective cover in the open position in the locking part and the locked protrusion, the locking part abuts against the locked protrusion, thereby restricting the protective cover from rotating from the open position to the assembled position.

7. An electrical junction box, characterized in that, include: A receiving component that receives an electrical connection component having an electrical connection portion physically and electrically connected to a conductive component of a counterpart device, and the receiving component exposes the electrical connection portion from an opening. A protective cover, wherein in an open position relative to the receiving member, the opening of the receiving member and the electrical connection portion are exposed, and in a closed position relative to the receiving member, the cover body covers the opening and the electrical connection portion. A rotating shaft, wherein the rotating shaft is disposed on one of the receiving component and the protective cover; as well as A bearing, disposed in the other of the receiving component and the protective cover, and having a clamping portion for clamping the rotating shaft. The bearing is configured to allow the protective cover to rotate about the axis of the rotation between the open position and the closed position. The protective cover is configured such that the rotating shaft is inserted between the clamping portions at an assembly position further away from the opening direction than the opening position, thereby allowing the protective cover to be assembled to the receiving component. The rotating shaft has a concave portion at the part opposite the clamping part when the protective cover is in the assembled position, and the concave portion is formed in a concave shape relative to the outer peripheral surface of the rotating shaft.

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