Cover unit

Abstract

This technology provides a method for stably holding a support in an upright position relative to a base. [Solution] The cover unit 10 comprises a base body 12 and a supported body 13. The supported body 13 has a supported portion 13F and is rotatable between an upright state and a collapsed state around the supported portion 13F relative to the base body 12. The supported body 13 is provided with a protrusion 13G, and the base body 12 is provided with a recess 12G that fits the protrusion 13G in the upright state and restricts the rotation of the supported body 13 from the upright state to the collapsed state.

Description

[Technical Field]

[0001] The present disclosure relates to a cover unit. [Background Art]

[0002] Patent Document 1 discloses a cover (supported member) that covers a fuse accommodating portion formed in an electrical junction box (base body). This cover is rotatably attached to a shaft provided on the electrical junction box, and can hold the fuse accommodating portion in a closed state. [Prior Art Literature] [Patent Literature]

[0003] [Patent Document 1] Japanese Unexamined Patent Publication No. Hei 7-222330 [Summary of the Invention] [Problem to be Solved by the Invention]

[0004] The cover of Patent Document 1 is considered to be rotatable 180 degrees around the shaft from the closed state. For example, if the cover can be held in an upright posture and the rotation range can be suppressed to less than 180 degrees, other components can be arranged in the space facing the back surface of the cover, which can contribute to downsizing the structure around the electrical junction box. In this case, a structure capable of holding the cover in an upright posture is required.

[0005] The present disclosure has been completed based on the above circumstances, and an object of the present disclosure is to provide a technique for stably holding a supported member in an upright posture with respect to a base body. [Means for Solving the Problem]

[0006] The cover unit of the present disclosure: a base body, a supported member, comprising The supported member has a supported portion and is rotatable between an upright state and a collapsed state with respect to the base, One of the supported body and the base body is provided with a protrusion, and the other body is provided with a recess that, when in the upright state, fits the protrusion and restricts the rotation of the supported body from the upright state to the collapsed state. [Effects of the Invention]

[0007] According to this disclosure, the support can be stably held in an upright position relative to the base. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is an exploded perspective view of an electrical junction box including a cover unit according to Embodiment 1. [Figure 2] Figure 2 is an enlarged perspective view of the main parts, showing the upright portion and back support portion of the base. [Figure 3] Figure 3 is a perspective view showing the support structure. [Figure 4] Figure 4 is a side view showing the support structure positioned above the base. [Figure 5] Figure 5 is a side view showing the support attached to the base. [Figure 6] Figure 6 is a side view showing the support being in contact with the backing portion. [Figure 7] Figure 7 is a front view showing the support attached to the base. [Figure 8] Figure 8 is a side view showing the support structure positioned in a lying-down position relative to the substrate. [Modes for carrying out the invention]

[0009] [Description of Embodiments in this Disclosure] First, the embodiments of this disclosure will be listed and described. The cover unit of this disclosure is (1) A base body and a supported body, wherein the supported body has a supported portion and is rotatable with respect to the base body, with respect to the supported portion as the center of rotation between an upright state and a collapsed state, and one of the supported body and the base body is provided with a convex portion, and the other is provided with a recess that, in the upright state, fits the convex portion and restricts the rotation of the supported body from the upright state to the collapsed state. According to (1) above, the convex portion fits into the recess, thereby preventing the supported object from rotating from an upright state to a collapsed state, and the convex portion disengages from the recess, thereby changing the supported object to a collapsed state. Here, the upright state is the state in which the convex portion fits into the recess and the supported object stands upright from the base, and the collapsed state is the state in which the supported object lies down along the upper surface of the base.

[0010] (2) In the cover unit described in (1) above, the base body has a base, an upright portion protruding from the base, and a support portion provided on the upright portion to support the supported portion, and of the recess and the protrusion, the portion provided on the base body is preferably provided between the support portion and the base in the direction in which the upright portion protrudes. According to (2) above, it is possible to prevent the recess and the protrusion from being positioned away from the base in the direction of the protrusion of the upright portion, making it easier to make the structure smaller.

[0011] (3) In the cover unit described in (2) above, it is preferable that the supported body in the upright state is opened to more than 90 degrees from the fallen state, the back surface of the supported body is positioned at an acute angle with respect to the seating surface of the base, and the base has a back support portion that supports the back surface of the supported body in the upright state. According to (3) above, the back support makes it easier to stably maintain the posture of the person being supported in an upright position.

[0012] (4) In the cover unit described in (3) above, it is preferable that the back support portion has an inclined surface that is inclined to follow the back surface of the support in the upright position. According to the above (4), the back support portion can be in surface contact with the back surface of the supported body, and the stress generated when contacting the back surface of the supported body can be dispersed on the inclined surface.

[0013] (5) In the cover unit according to any one of the above (1) to (4), it is preferable that the supported body has a protrusion extending in one direction and capable of elastic deformation, the convex portion is provided at a distal end portion of the protrusion in the one direction, and is detachably latched in the concave portion. According to the above (5), the protrusion is elastically deformable, and the convex portion is provided at the distal end in the protruding direction, so that the fitting and releasing between the convex portion and the concave portion can be easily and smoothly performed. [Details of Embodiments of the Present Disclosure] Specific examples of embodiments of the present disclosure will be described below with reference to the drawings. It should be noted that the present invention is not limited to this example, and is defined by the claims, and it is intended that all modifications within the meaning and scope equivalent to the claims are included.

[0014] <Embodiment 1> A specific example of Embodiment 1 will be described with reference to FIGS. 1 to 8. A cover unit 10 according to Embodiment 1 is used, for example, in an electrical connection box 11 mounted on a vehicle such as an electric vehicle. In the drawings, "front side", "rear side", "upper side", "lower side", "right side", and "left side" are represented by "F", "B", "U", "D", "R", and "L", respectively. It should be noted that the reference for directions is defined for convenience, and does not necessarily match the direction in a state where the electrical connection box 11 with the cover unit 10 mounted on a vehicle or the like. For example, the vertical direction is not limited to the direction of gravity.

[0015] [Configuration of Electrical Connection Box] The electrical connection box 11 shown in FIG. 1 accommodates unillustrated electrical components such as relays and resistors, bus bars and the like. The electrical connection box 11 includes a case 20 and the cover unit 10. The electrical connection box 11 shown in FIG. 1 shows a main part by cutting out.

[0016] The case 20 is made of synthetic resin. In this embodiment 1, the case 20 is the lower case. The case 20 has a mounting wall portion 20A and a peripheral wall portion 20B that rises up to surround the mounting wall portion 20A. Electronic components such as relays and resistors (not shown) and busbars are attached to and fixed to the mounting wall portion 20A of the case 20.

[0017] In this embodiment 1, the cover unit 10 is an upper case. The cover unit 10 comprises a base 12 and a plurality of supported bodies 13.

[0018] [Substrate composition] The base 12 is made of synthetic resin. The base 12 has a flat base 12A with its thickness direction oriented vertically, a hanging wall portion 12D that is connected to and hangs down from the outer edge of the base 12A, a plurality of upright portions 12B, and a plurality of back support portions 12C. The base 12 is box-shaped and open downwards.

[0019] Multiple through holes 12E are formed in the base 12A, penetrating in the direction of the plate thickness. In this embodiment 1, the opening shapes of the multiple through holes 12E are rectangular or circular.

[0020] As shown in Figure 2, the upright portion 12B and the back support portion 12C are formed to rise and protrude from the base 12A. Multiple upright portions 12B and back support portions 12C are provided corresponding to each through hole 12E. Specifically, a pair of upright portions 12B are positioned to sandwich the back support portion 12C from the left and right outer sides. With respect to the through hole 12E, the pair of upright portions 12B and the back support portion 12C are positioned along the edge of the through hole 12E. The pair of upright portions 12B are positioned to sandwich the back support portion 12C. The back support portion 12C is then sandwiched between the pair of upright portions 12B.

[0021] Each upright portion 12B is provided with a support portion 12F and a recess 12G. The support portion 12F is formed to be recessed downward at the upper part (the tip in the protruding direction) of the upright portion 12B. In each upright portion 12B, the support portion 12F is open inward in the left-right direction, facing the backrest portion 12C. The recess 12G is formed at the lower part (the base end in the protruding direction) of the upright portion 12B. In other words, in the protruding direction (up and down direction) of the upright portion 12B, the recess 12G is provided between the support portion 12F and the base 12A. In each upright portion 12B, the recess 12G is formed to be recessed outward in the left-right direction (away from the backrest portion 12C) on the surface facing inward in the left-right direction (the surface facing the backrest portion 12C).

[0022] The back support portion 12C is formed to be wide in the left-right direction (the direction in which the pair of upright portions 12B are aligned). Two through holes 12H are formed in the back support portion 12C, penetrating in the front-rear direction perpendicular to the left-right direction. The side of the back support portion 12C facing the through holes 12E is formed as an inclined surface 12J that gradually moves away from the through holes 12E towards the plate surface of the base 12A as it approaches the upper end of the back support portion 12C (the tip in the protruding direction). In other words, the back support portion 12C has an inclined surface 12J. A projection 12K is provided on the base 12A between the back support portion 12C and the through holes 12E, projecting upward.

[0023] [Structure of the support] As shown in Figure 3, each of the multiple supported structures 13 has a closing portion 13A, a pair of protruding portions 13B, and a pair of extending portions 13C. Each supported structure 13 is made of, for example, synthetic resin. The following description of the supported structures 13 is based on the upright position, with the side facing the through hole 12E being considered the front. The closing portion 13A has a rectangular, substantially flat closing wall portion 13D, and an annular wall portion 13E extending from the outer peripheral edge of the closing wall portion 13D in the thickness direction of the closing wall portion 13D.

[0024] The pair of protrusions 13B extend one from each of the left and right ends of one of the four wall sections constituting the annular wall section 13E. Specifically, each protrusion 13B extends in a flat plate shape downward (one direction) away from the closing section 13A in the planar direction of the closing wall section 13D. Each protrusion 13B has its plate thickness direction oriented in the left-right direction. The base end of each protrusion 13B widens in plate width as it approaches the annular wall section 13E. Each protrusion 13B is elastically deformable in the left-right direction. The tip of each protrusion 13B in the protruding direction extends in the opposite direction to the extension direction of the annular wall section 13E, that is, towards the rear of the back surface 13J of the closing wall section 13D. In other words, each protrusion 13B has an L-shaped bend.

[0025] Each projection 13B has a supported portion 13F and a convex portion 13G. The supported portion 13F and the convex portion 13G are provided projecting outward in the left-right direction from each projection 13B. The convex portion 13G is provided at the tip of each projection 13B. The supported portion 13F has a cylindrical shape with its axis oriented in the left-right direction. The lower side of the tip of the supported portion 13F in the projection direction is inclined inward in the left-right direction as it goes downward.

[0026] The protrusion 13G is hemispherical in shape. The diameter of the protrusion 13G is smaller than the diameter of the supported portion 13F. The projection dimension of the protrusion 13G from the projection 13B is smaller than the projection dimension of the supported portion 13F. The protrusion 13G is provided at the tip of each projection 13B in the projection direction. The distance between the supported portion 13F and the closing portion 13A is smaller than the distance between the protrusion 13G and the closing portion 13A.

[0027] The pair of extensions 13C are arranged side by side in the left-right direction between the pair of projections 13B. Each extension 13C extends in a flat plate shape along the closing wall 13D and away from the closing portion 13A. The thickness direction of each extension 13C is oriented in the left-right direction. Therefore, each extension 13C is elastically deformable in the left-right direction. A locking projection 13H is provided at the tip of each extension 13C in the direction of projection, projecting inward in the left-right direction.

[0028] [Example of assembly procedure for an electrical junction box] Next, an example of the assembly procedure for the electrical junction box 11 will be described. First, as shown in Figure 4, the pair of protruding parts 13B and the pair of extending parts 13C are positioned opposite the base 12A of the base body 12. Furthermore, the direction in which the annular wall part 13E extends from the closing wall part 13D is directed toward the through hole 12E, and the closing wall part 13D is directed toward the back support part 12C. In this position, the supported body 13 is brought closer to the base body 12 from above.

[0029] Next, the supported portion 13 is brought closer to the base 12 by aligning the left-right outer surfaces of the pair of protrusions 13B with the left-right inner surfaces of the pair of upright portions 12B (see Figure 7). As a result, each supported portion 13F is pressed inward in the left-right direction by the guide surface 12L (see Figure 7) formed on the support portion 12F of each upright portion 12B, and each protrusion 13B elastically deforms inward in the left-right direction. Then, as the supported portion 13F passes downward through the guide surface 12L, the supported portion 13F fits into the fitting recess 12Q (see Figure 7) formed below the guide surface 12L, and at the same time, the base end of each protrusion 13B (the protrusion 13B at the location where the supported portion 13F is positioned) elastically returns to its original position. As a result, the supported portion 13F of each protrusion 13B fits into the support portion 12F of each upright portion 12B in a locking state (see Figures 5 and 7). In this way, the support part 12F supports the supported part 13F.

[0030] Furthermore, the protrusion 13G is pressed inward in the left-right direction by the left-right inner surface of the upright portion 12B, and slides downward on the left-right inner surface of the upright portion 12B. At this time, the tip of the protruding portion 13B on which the protrusion 13G is located is elastically deformed inward in the left-right direction. In Figure 5, the state of the supported member 13 is not included in the upright state in this embodiment 1 because the protrusion 13G is not fitted into the recess 12G.

[0031] Next, as shown in Figure 6, the closing portion 13A of the supported portion 13 is rotated around the supported portion 13F in a direction away from the through hole 12E (rearward). Then, the protrusion 13G slides along the inward-facing surfaces of each upright portion 12B in the left-right direction toward the through hole 12E (forward). When the protrusion 13G reaches the recess 12G of the upright portion 12B, the protrusion 13G fits into the recess 12G from the inside in the left-right direction. The dimension of the recess 12G in the front-rear direction is larger than the diameter of the protrusion 13G. At the same time, the tip of the protruding portion 13B on which the protrusion 13G is positioned elastically returns to its original position. At this time, the back surface 13J of the closing wall portion 13D makes surface contact with the inclined surface 12J of the back support portion 12C. Furthermore, the locking projection 13H is pressed outward in the left-right direction by the projection 12K, causing the extension 13C to elastically deform outward in the left-right direction (see Figure 7). When the locking projection 13H overcomes the projection 12K towards the through hole 12E (forward), the extension 13C elastically returns to its original position (see Figure 7). At this time, the convex portion 13G is located below the back surface 13J of the closing wall portion 13D.

[0032] For example, when the back surface 13J of the closing wall portion 13D of each supported object 13 is pressed in the direction toward the through hole 12E (forward), the convex portion 13G strikes the rear edge of the concave portion 12G. In other words, the concave portion 12G fits the convex portion 13G in the upright state, restricting the rotation of the supported object 13 from the upright state to the collapsed state. At the same time, the locking projection 13H abuts against the projection 12K from the front. As a result, each supported object 13 is attached to the base 12 while being held in the upright state. The inclined surface 12J of the back support portion 12C is inclined to follow the back surface 13J of the supported object 13 in the upright state. The back support portion 12C supports the back surface 13J of the supported object 13 in the upright state.

[0033] The back surface 13J of the upright supported object 13 is positioned at an acute angle with respect to the seat surface 12P of the base 12A. In the front-to-back direction, when the supported object 13 is upright, the end of the supported object 13 furthest from the base 12 (the upper end) is located behind the back support portion 12C. Since the supported object 13 does not tip backward due to the back support portion 12C, other components (in this embodiment 1, other supported objects 13) can be placed in the space faced by the back surface 13J of the supported object 13, and the structure around the electrical connection box 11 can be made smaller.

[0034] Next, the cover unit 10 is assembled to the case 20, which is fitted with electronic components such as relays and registers (not shown) and busbars. Specifically, the cover unit 10 is brought close to the case 20 from above, and the hanging wall portion 12D of the base 12 is positioned so as to cover the peripheral wall portion 20B from the outside (see Figure 1). Then, the elastic locking portion 12M provided on the hanging wall portion 12D locks into the locking claw 20C provided on the peripheral wall portion 20B, connecting the case 20 and the cover unit 10 (see Figure 1).

[0035] Then, bolts (not shown) are tightened through the through-hole 12E to secure electronic components, busbars, etc., housed in the case 20. At this time, the supported structure 13 is in an upright position, tilted away from the through-hole 12E, and is opened to more than 90 degrees from its fallen state (see Figure 6). This makes it easier to perform the work through the through-hole 12E.

[0036] Then, as shown in Figure 8, the supported object 13 is changed from an upright state to a collapsed state to close the through hole 12E. Specifically, the closing portion 13A of the supported object 13 is pressed in a direction toward the through hole 12E (forward). As a result, the convex portion 13G detaches from the concave portion 12G. At the same time, the tip of each protruding portion 13B in the direction of protrusion elastically deforms inward in the left-right direction, and the convex portion 13G slides along the left-right inward-facing surfaces of each upright portion 12B toward a direction toward away from the through hole 12E (rearward). In other words, the convex portion 13G is detachably hooked onto the concave portion 12G. When the convex portion 13G reaches a position away from the pair of upright portions 12B (behind the upright portions 12B), each protruding portion 13B elastically returns to its original position. In other words, when the convex portion 13G detaches from the concave portion 12G, the supported object 13 changes from an upright state to a collapsed state.

[0037] Simultaneously, the locking projection 13H is pressed outward in the left-right direction by the projection 12K, causing the extension 13C to elastically deform outward in the left-right direction (see Figure 7). As the locking projection 13H passes the projection 12K away from the through hole 12E (rearward), the elastic restoring force of the extension 13C is converted into a rotational force that causes the closing part 13A to rotate around the supported part 13F toward the through hole 12E. As a result, the closing part 13A is biased toward the through hole 12E (forward) and rotates around the supported part 13F, closing the through hole 12E from above. At this time, the locking projection 13K provided on the closing part 13A locks with the locking projection 12N provided on the base 12. In this way, each supported part 13 is held in a collapsed state relative to the base 12. In other words, each supported member 13 is connected to the base 12 so as to be rotatable between an upright position and a collapsed position, with the supported portion 13F as the center.

[0038] As described above, the cover unit 10 according to this embodiment 1 comprises a base body 12 and a supported body 13. The supported body 13 has a supported portion 13F and is rotatable between an upright state and a collapsed state with respect to the base body 12, with respect to the supported portion 13F as the center. The supported body 13 is provided with a protrusion 13G, and the base body 12 is provided with a recess 12G that, when in the upright state, fits the protrusion 13G to restrict the rotation of the supported body 13 from the upright state to the collapsed state. With this configuration, the rotation of the supported body 13 from the upright state to the collapsed state can be suppressed by the protrusion 13G fitting into the recess 12G, and the supported body 13 can be changed to the collapsed state by the protrusion 13G disengaging from the recess 12G. Here, the upright state is the state in which the convex portion 13G is fitted into the concave portion 12G and the supported portion 13 is standing upright from the base 12, and the fallen state is the state in which the supported portion 13 is lying down along the base 12A (upper surface) of the base 12.

[0039] The base 12 includes a base 12A, an upright portion 12B protruding from the base 12A, and a support portion 12F provided on the upright portion 12B to support the supported portion 13F. The recess 12G provided in the base 12 is located between the support portion 12F and the base 12A in the direction in which the upright portion 12B protrudes. This configuration prevents the recess 12G and the protrusion 13G from being located away from the base 12A in the direction in which the upright portion 12B protrudes, making it easier to create a compact structure.

[0040] In its upright position, the supported object 13 is at an angle greater than 90 degrees from its prone position, and the back surface 13J of the supported object 13 is positioned at an acute angle with respect to the seat surface 12P of the base 12A. The base 12 has a back support portion 12C that supports the back surface 13J of the supported object 13 in its upright position. With this configuration, the back support portion 12C makes it easy to stably maintain the upright position of the supported object 13.

[0041] The back support portion 12C has an inclined surface 12J that is inclined to follow the back surface 13J of the supported object 13 in an upright position. With this configuration, the back support portion 12C can make surface contact with the back surface 13J of the supported object 13, and the stress generated when contacting the back surface 13J can be distributed to the inclined surface 12J.

[0042] The support 13 has a projection 13B that extends in one direction and is elastically deformable. A convex portion 13G is provided at the tip of the projection 13B in the aforementioned direction and is detachably hooked into the recess 12G. With this configuration, since the projection 13B is elastically deformable and the convex portion 13G is provided at the tip in the direction of projection, the fitting and detachment of the convex portion 13G and the recess 12G can be made smoother.

[0043] [Other embodiments of this disclosure] Embodiment 1 disclosed herein should be considered in all respects to be illustrative and not restrictive. (1) The opening shape of the through hole is not limited to the opening shape of the embodiment described above. (2) In contrast to the above embodiment, the convex portion may be provided on the upright portion of the base and the concave portion on the protruding portion of the supported object. In this case, the convex portion may be provided between the support portion and the base in the direction of the protrusion of the upright portion. In other words, it is sufficient that the supported object and the base have a convex portion and the other has a concave portion. (3) The cover unit of this disclosure may be applied to a box other than an electrical junction box. (4) Unlike the above embodiment, the supported portion and the base portion may be formed by integral molding, and the supported portion may be configured as a hinge connected to the supported portion and the base portion. (5) In a supported structure in an upright position in which the convex portion fits into the concave portion and rises upward from the base, the back surface of the supported structure may be positioned perpendicular to the seating surface of the base. [Explanation of Symbols]

[0044] 10: Cover Unit 11: Electrical junction box 12: Base 12A: Base 12B: Standing part 12C: Back support section 12D: Hanging wall part 12E: Through hole 12F: Support part 12G: recessed 12H: Through hole 12J: Inclined surface 12K:Protrusion 12L: Guide surface 12M: Elastic locking part 12N: Locking protrusion 12P: Seat 13:Supported object 13A: Closed part 13B:Protrusion 13C: Extension part 13D: Enclosed wall section 13E: Annular wall section 13F: Supported part 13G: Convex part 13H: Locking protrusion 13J: Back 13K: Locking protrusion 20: Case 20A: Mounting wall section 20B: Peripheral wall part 20C:Latching claw

Claims

1. It comprises a substrate and a support, The supported member has a supported portion and is rotatable relative to the base, with respect to the supported portion as the pivot point, between an upright state and a collapsed state. A cover unit in which one of the supported body and the base body is provided with a protrusion, and the other body is provided with a recess that, when in the upright state, fits the protrusion and restricts the rotation of the supported body from the upright state to the collapsed state.

2. The aforementioned substrate is The base and The upright portion protruding from the aforementioned base, A support portion provided on the upright portion and supporting the supported portion, It has, The cover unit according to claim 1, wherein of the recess and the protrusion, the one provided on the base is provided between the support portion and the base in the direction of protrusion of the upright portion.

3. The upright support is positioned at an angle greater than 90 degrees from the fallen state, and the back of the support is positioned at an acute angle with respect to the seating surface of the base. The cover unit according to claim 2, wherein the base has a back support portion that supports the back surface of the support in the upright position.

4. The cover unit according to claim 3, wherein the back support portion has an inclined surface that is inclined to conform to the back surface of the support in the upright position.

5. The support has a projection that extends in one direction and is elastically deformable, The cover unit according to any one of claims 1 to 4, wherein the convex portion is provided at the tip of the protruding portion in one direction and is detachably hooked into the recess.

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