JP2019068635A - Waterproof structure of slide cover, electric connection box, and wire harness - Google Patents

Abstract

To improve waterproof performance.SOLUTION: A waterproof structure of a slide cover has a first fit-in body 31 projected from two end portions 14a arranged oppositely to each other across an opening 15 in an exterior wall body 14, a first fit-in groove 32 provided on respective end portions 21a of a cover body 21 and to which the first fit-in body is slide-inserted and fitted, an inner wall body 33 which is a wall body per first fit-in body provided on the exterior wall body, extends along a slide insertion direction, and extends so as to follow an intersection direction to a wall surface of the first fit-in body, an intersection wall body 34 projecting from an inner wall surface 21d of the cover body per inner wall body so as to follow a wall surface 33a of the inner wall body, and slide-inserted and fitted between the wall surface of respective inner wall body, a second fit-in body 35 per inner wall body projected from the inner wall body to the opening and extended along the slide insertion direction, and a second fit-in groove 36 which is a groove provided on the inner wall surface of the cover body per second fit-in body and to which the second fit-in body is slide-inserted and fitted.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a waterproof structure of a slide cover, an electrical connection box, and a wire harness.

  Conventionally, in a storage box such as an electrical connection box, an opening is provided in a wall forming an outer wall. The opening is closed by a slide cover attached to the wall as it slides along the wall. The slide cover is a part of the outer wall of the storage box by closing the opening, and the same plane as the wall surface of the wall forming the outer wall or a plane offset parallel to the wall surface of the wall It has a cover main body provided as a wall surface. About this kind of storage box, it is disclosed by the following patent documents 1, for example. In the storage box of Patent Document 1, a piece along the wall surface of the cover main body is provided at each end extending along the sliding direction of the cover main body, and a storage portion for sliding insertion of the piece is a wall of the other It has a waterproof structure provided on each body. The housing portion includes two pieces in which wall surfaces separated from each other are arranged in parallel in a parallel state, and a connecting body connecting the two pieces. The two pieces and the coupling body extend along the sliding direction of the cover body. The two pieces of the housing portion have their own wall surface that is the same plane as the wall surface of the wall or a plane offset parallel to the wall surface of the wall. One piece of slide cover is slide inserted between the two pieces of the housing. In addition, in the storage box described in Patent Document 2 below, the slide cover is disposed inward, and the paired pieces and the accommodating portion are disposed on the wall body and the slide cover in reverse to Patent Document 1. It is done. The respective housing portions of the slide cover are not intended to improve the waterproof performance, but extend the coupling body inward so as to sandwich the electric wire.

JP 2011-55630 A JP, 2012-228078, A

  As described above, in the storage box, a waterproof structure is provided between the slide cover and the wall to suppress the infiltration of liquid (water or the like) inward. However, the conventional waterproof structure has room for improvement in terms of suppressing the infiltration of liquid.

  Then, this invention makes it the objective to provide the waterproof structure of a slide cover which can improve waterproof performance, an electrical connection box, and a wire harness.

  In order to achieve the above object, the waterproof structure of the slide cover according to the present invention is a flat plate-like structure in which the two ends disposed opposite to each other across the opening in the outer wall of the storage box respectively project along the opening. 1) An insert body, and an end portion which is slide-inserted into the outer wall body along the opening and which is disposed opposite to the end portion of the outer wall body after the slide insertion is completed for each of the end portions of the outer wall body A groove provided for each of the first fitting bodies in a flat cover body of a slide cover, provided at each of the end portions of the cover body, and along with the slide insertion of the cover body into the outer wall, the first A first fitting groove into which the fitting body is fitted, and a wall body for each of the first fitting bodies provided on the outer wall body on the first fitting body side inward of the storage box, the cover main body for the outer wall body Along the slide insertion direction of And extending from the inner wall surface of the cover main body along the wall surface of the inner wall body, and the inner wall body extending along the cross direction to the wall surface of the first fitting body A cross wall which is made to project and is fitted between the wall surfaces of the respective inner walls with sliding insertion of the cover main body into the outer wall, and protruding from the inner wall toward the opening and in the slide insertion direction A second fitting body for each of the inner wall bodies extended along the groove, and a groove provided for each of the second fitting bodies in the inner wall surface of the cover main body, along with the slide insertion of the cover main body into the outer wall body And a second insertion groove into which the second insertion body is inserted.

  Here, each end of the cover body is inclined toward the center with respect to the slide insertion direction so that the width becomes narrower toward the slide insertion direction, and the respective ends of the outer wall body It is desirable that the portions be inclined so as to be disposed at equal intervals after the slide insertion is completed with respect to the respective end portions of the cover body.

  In order to achieve the above object, an electrical connection box according to the present invention includes an outer wall body having an opening, and a slide cover having a flat cover body which is slidably inserted into the outer wall body along the opening. A storage box provided, an electronic component electrically connected to one end of a wire inside the storage box, or an electronic component holder for storing and holding the electronic component, the storage target being stored in the storage box And the outer wall body has two end portions disposed opposite to each other across the opening, and the cover main body is disposed opposite to the end portion of the outer wall body after the slide insertion is completed. An end is provided for each end of the outer wall body, and the storage box is provided with a waterproof structure that suppresses the inflow of liquid from the outer side to the inner side. The waterproof structure is provided at each of the end portions of the cover main body, and the flat-shaped first fitting body respectively projected along the opening from the respective end portions of the outer wall body; A first fitting groove into which the first fitting body is fitted with the slide insertion of the cover main body into the body, and the first fitting body provided on the outer wall body on the first fitting body side inward of the storage box An inner wall extending along a sliding insertion direction of the cover body with respect to the outer wall and extending along a direction intersecting with a wall surface of the first fitting body; A cross wall which is made to project from the inner wall surface of the cover main body along the wall surface of the body for each of the inner walls and to be fitted between the wall surfaces of the respective inner walls with slide insertion of the cover main body into the outer wall. And the inner wall body A second fitting body for each of the inner wall members that protrudes toward the opening and extends along the slide insertion direction, and a groove provided for each of the second fitting bodies on the inner wall surface of the cover main body And a second insertion groove into which the second insertion body is inserted along with the slide insertion of the cover main body into the outer wall body.

  Further, to achieve the above object, a wire harness according to the present invention includes an outer wall body having an opening, and a slide cover having a flat cover body which is slidably inserted into the outer wall body along the opening. A storage box, an electric wire, an electronic component electrically connected to one end side of the electric wire inside the storage box, or an electronic component holder for storing and holding the electronic component, which is stored in the storage box An object to be accommodated, the outer wall body having two end portions disposed opposite to each other across the opening, and the cover main body faces the end portion of the outer wall body after the slide insertion is completed The end portion to be disposed is provided for each of the ends of the outer wall body, and the storage box is provided with a waterproof structure that suppresses the inflow of liquid from the outer side to the inner side. The waterproof structure is provided at each of the end portions of the cover main body, and the flat-shaped first fitting body respectively projected along the opening from the respective end portions of the outer wall body; A first fitting groove into which the first fitting body is fitted with the slide insertion of the cover main body into the body, and the first fitting body provided on the outer wall body on the first fitting body side inward of the storage box An inner wall extending along a sliding insertion direction of the cover body with respect to the outer wall and extending along a direction intersecting with a wall surface of the first fitting body; A cross wall which is made to project from the inner wall surface of the cover main body along the wall surface of the body for each of the inner walls and to be fitted between the wall surfaces of the respective inner walls with slide insertion of the cover main body into the outer wall. And the inner wall body A second fitting body for each of the inner wall members that protrudes toward the opening and extends along the slide insertion direction, and a groove provided for each of the second fitting bodies on the inner wall surface of the cover main body And a second insertion groove into which the second insertion body is inserted along with the slide insertion of the cover main body into the outer wall body.

  The waterproof structure of the slide cover according to the present invention can suppress the infiltration of liquid from the outside of the storage box by the first insertion body and the insertion structure of the first insertion groove. In addition, even if the waterproof structure can not be suppressed by the insertion structure, even if the liquid infiltrates, the intrusion of the liquid further back into the insertion structure of the inner wall and the cross wall and the second insertion body and the second It can be restrained by the insertion structure of the insertion groove. Therefore, this waterproof structure can improve waterproof performance more than before. Moreover, since the electrical connection box and the wire harness according to the present invention have the waterproof structure, the effect of the waterproof structure can be exhibited.

FIG. 1 is a perspective view showing the electric connection box and the wire harness of the embodiment, and shows a state in which the inside of the storage box is seen through from the second housing member side. FIG. 2 is a plan view of the electric connection box of the embodiment as viewed from the slide cover side. FIG. 3 is an exploded perspective view showing a waterproof structure of the slide cover of the embodiment. FIG. 4 is a perspective view showing the configuration of the waterproof structure on the side of the storage box. FIG. 5 is a perspective view of the configuration of the waterproof structure on the side of the storage box as viewed from another angle. FIG. 6 is a perspective view of the slide cover as viewed from the outer wall side, and shows the configuration of the waterproof structure on the slide cover side. FIG. 7 is a perspective view of the slide cover as viewed from the inner wall surface side, showing the configuration of the waterproof structure on the slide cover side. FIG. 8 is a perspective view of the slide cover as seen from another angle from the inner wall surface side, showing a configuration of a waterproof structure on the slide cover side. FIG. 9 is a side view of the slide cover, showing the configuration of the waterproof structure on the slide cover side. FIG. 10 is a rear view of the slide cover, showing the configuration of the waterproof structure on the slide cover side. FIG. 11 is a cross-sectional view taken along line X1-X1 of FIG. 2 and illustrates the waterproof structure in an enlarged manner. FIG. 12 is a cross-sectional view taken along line X2-X2 of FIG. 2 and illustrates the waterproof structure in an enlarged manner.

  Hereinafter, embodiments of a waterproof structure for a slide cover, an electrical connection box, and a wire harness according to the present invention will be described in detail based on the drawings. The present invention is not limited by this embodiment.

[Embodiment]
One of the embodiments of the waterproof structure of the slide cover, the electrical connection box and the wire harness according to the present invention will be described based on FIGS. 1 to 12.

  The code | symbol 1 of FIG.1 and FIG.2 shows the electrical connection box of this embodiment. Moreover, the code WH of FIG. 1 shows the wire harness of this embodiment provided with the electrical connection box 1.

  The electrical connection box 1 of the present embodiment includes a storage box 10 and at least one storage object AC stored in the storage box 10 (FIG. 1).

  The storage box 10 is formed of an insulating material such as a synthetic resin. The storage box 10 has at least one storage chamber 11 (FIG. 1). The storage room 11 is a room for storing the storage subject AC. At least one storage object AC is stored in one storage chamber 11. In addition, the storage box 10 has at least one opening 12 communicated with the storage chamber 11 (FIG. 1). The opening 12 is an insertion port when the storage object AC is stored in the storage chamber 11. In the storage box 10, one end side of the electric wire (power supply line, signal line or the like) We is accommodated in the internal storage chamber 11, and the other end side of the electric wire We is drawn out from the internal storage chamber 11. Therefore, the storage box 10 has at least one outlet 13 for drawing the electric wire We from the inside to the outside (FIG. 1). In FIG. 1, a part of the plurality of electric wires We is illustrated.

  The storage object AC is inserted from the opening 12 and stored in the storage chamber 11. As the accommodation object AC in the electric connection box 1, an electronic component electrically connected to one end side of the electric wire We, an electronic component holding body for accommodating and holding the electronic component, or the like can be considered. The electric connection box 1 of the present embodiment includes the storage box 10 and at least one of the electronic component and the electronic component holder as the storage object AC, and the connection target to the electronic component via the electric wire We. An object (not shown) is electrically connected. In the electric connection box 1, the wire We is electrically connected to the electronic component in the storage box 10, and the electronic component is connected via the wire We drawn from the inside of the storage box 10 to the outside. Electrical connection is made to the connection object. The electrical connection box 1 forms a wire harness WH together with the electric wire We.

  Here, the electronic components refer to, for example, circuit protection components such as relays and fuses, connectors, and terminal fittings. Here, electronic devices such as circuit boards and electronic control units (so-called ECUs) are also considered as a form of electronic components. Further, the connection target refers to a power source such as a secondary battery, a load such as an electric device (actuator or the like), a sensor, and the like. In the electrical connection box 1, for example, one electric wire We is electrically connected to the power supply, and another electric wire We is electrically connected to the load, and the power supply and the load are connected. And are electrically connected via electronic components.

  Specifically, the illustrated storage box 10 is formed by assembling three members of a first housing member 10A, a second housing member 10B, and a third housing member 10C (FIG. 1).

  The first housing member 10A constitutes the main part of the storage box 10, and has a storage chamber 11 and an opening 12 (FIG. 1). The first housing member 10A is a box having two oppositely disposed openings 12 (first opening 12A and second opening 12B) at both ends, and may be referred to as a so-called frame. A plurality of storage chambers 11 are formed in the first housing member 10 </ b> A, and the storage target object AC is stored in each of the storage chambers 11.

  In the first housing member 10A, the electronic component as the accommodation object AC and the electronic component accommodated and held in the electronic component holder as the accommodation object AC are inserted from the first opening 12A. On the other hand, the electronic component holder as the storage object AC is inserted from the second opening 12B. The electric wire We is pulled out of the storage chamber 11 through the second opening 12 B and guided to the outlet 13.

  The first housing member 10A has a cylindrical outer wall surrounded by a plurality of flat outer walls 14 (FIG. 1). In the first housing member 10A, the openings at both ends thereof are used as the first opening 12A and the second opening 12B, respectively. In the first housing member 10A, at least one of the plurality of outer wall bodies 14 is provided with an opening 15 (FIGS. 3 to 5). The opening 15 is formed like a notch. The illustrated opening 15 is cut away from the first opening 12A side. The outer wall body 14 has two end portions 14a opposite to each other across the opening 15 (FIGS. 2 to 5). In the outer wall body 14, the respective end portions 14 a are inclined such that the width of the opening 15 becomes narrower from the first opening 12 A side toward the second opening 12 B side. The outer wall body 14 has an opening 15 on the second opening 12B side of the opening 15 and a tip 14b connecting the second opening 12B of each end 14a (FIGS. 2 to 5).

  The storage box 10 also includes a slide cover 20 that closes the opening 15 (FIGS. 1 to 3 and 6 to 10). The slide cover 20 has a flat cover body 21 which is slide-inserted into the outer wall 14 along the opening 15. In the storage box 10 of this example, a wire We with a metal terminal Tm is disposed on the inner side of the cover main body 21, and the wire We is pulled out of the storage box 10 through the slide cover 20. (Figure 1).

  The cover main body 21 has an end 21a disposed opposite to the end 14a of the outer wall 14 after the slide insertion is completed (FIGS. 2, 3 and 6 to 10). The cover body 21 has its end 21 a at each end 14 a of the outer wall 14. Further, the cover main body 21 has a tip portion 21b disposed opposite to the tip portion 14b of the outer wall body 14 after the slide insertion is completed (FIGS. 2, 3 and 6 to 10). The cover main body 21 is slide-inserted into the opening 15 from its tip 21 b. In the opening 15, the first opening 12A side becomes the insertion port 15a of the cover main body 21 (FIG. 3).

  The illustrated cover main body 21 is formed such that the outer wall surface 21c is disposed on the same plane as the outer wall surface 14c of the outer wall body 14 after the slide insertion is completed (FIGS. 1, 11 and 12). Further, in the illustrated cover main body 21, each end 21 a is inclined toward the center with respect to the slide insertion direction so that the width becomes narrower toward the slide insertion direction with respect to the outer wall body 14.

  The second housing member 10B is a cover member that closes the first opening 12A, and is attached to the first housing member 10A from the first opening 12A side. The third housing member 10C is a cover member that closes the second opening 12B, and is attached to the first housing member 10A from the second opening 12B side.

  Thus, the electrical connection box 1 of the present embodiment includes the plurality of storage chambers 11 and the plurality of storage objects AC, and the electronic components and the electronic component holder are stored as the storage objects AC. .

  By the way, the storage box 10 is provided with the waterproof structure 30 which suppresses the penetration of the liquid (water etc.) to the inner side from the outer side (FIGS. 3-12). Here, a waterproof structure 30 for enhancing the waterproof performance between the outer wall body 14 and the slide cover 20 will be described.

  The waterproof structure 30 is provided with a first insertion body 31 and a first insertion groove 32 which form a maze structure by being fitted to each other (FIGS. 3 and 11). Even if the first inset body 31 and the first inset groove 32 are engaged with each other to increase the creeping distance between the outer wall body 14 and the slide cover 20 and the liquid infiltrates from the outside of the storage box 10, It is difficult to make the liquid reach the inside of the storage box 10.

  The first fitting bodies 31 respectively project from the respective end portions 14a of the outer wall body 14 along the openings 15 (FIGS. 4, 5 and 11). The first fitting body 31 is formed as a flat wall and extends along the slide insertion direction so that the wall surface of the first insertion body 31 is along the slide insertion direction. The illustrated first fitting body 31 extends between the insertion port 15 a side of the opening 15 and the tip end 14 b side of the outer wall body 14. The inner wall surface 31 a of the first fitting body 31 of this example is disposed on the same plane as the inner wall surface 14 d of the outer wall body 14 (FIG. 11). On the other hand, the outer wall surface 31b of the first fitting body 31 of this example is offset to the inside of the storage box 10 with respect to the outer wall surface 14c of the outer wall body 14 (FIG. 4, FIG. 5 and FIG. 11).

  The first insertion grooves 32 are respectively provided at the respective end portions 21 a of the cover main body 21. The first insertion groove 32 is a groove into which the first insertion body 31 is inserted along with the slide insertion of the cover main body 21 into the outer wall body 14. The first fitting groove 32 is provided for each first fitting body 31. The first fitting groove 32 has a first groove wall body 32a and a second groove wall body 32b in which wall surfaces spaced from each other are arranged opposite to each other in parallel (FIGS. 3, 6 to 9 and FIG. 11). The first groove wall body 32a and the second groove wall body 32b are each formed as a flat wall body, and the space equivalent to the plate thickness of the first fitting body 31 is formed so that the first fitting body 31 can be fitted therein. Leave the space between them and place them opposite each other. The first groove wall body 32a and the second groove wall body 32b respectively project from the end 21a along the wall surface (the outer wall surface 21c, the inner wall surface 21d) of the cover main body 21.

First Mizokabetai 32a of this exemplary is formed as an outer wall surface 32a ₁ is disposed on the outer wall surface 21c and the same plane of the cover body 21 (FIGS. 6, 11 and 12). Therefore, the first Mizokabetai 32a, after the slide is completely inserted, the outer wall surface 32a ₁ is disposed on the outer wall surface 14c and the same plane of the outer wall member 14. The illustrated first groove wall body 32a extends in the slide insertion direction along the end portion 21a of the cover main body 21 so as to cover and cover the entire outer wall surface 31b of the first fitting body 31 disposed opposite to the first groove wall body 32a. It is made to exist.

  The second groove wall body 32b extends along the end 21a of the cover main body 21 so that the entire inner wall surface 31a of the first fitting body 31 oppositely disposed can be covered in the slide insertion direction. You may That is, the first insertion groove 32 may be one into which the entire first insertion body 31 is inserted. However, the illustrated second groove wall body 32 b is provided only on the side of the insertion opening 15 a in the opening 15. Therefore, the illustrated first fitting groove 32 fits only the insertion port 15 a side of the first fitting body 31 after the slide insertion is completed.

  The waterproof structure 30 further extends the creeping distance between the outer wall body 14 and the slide cover 20 in the cross direction to the wall surface of the first fitting body 31 and the first fitting groove 32 inside the accommodation box 10. And the cross wall 34 (FIGS. 3, 11 and 12). Even if the liquid is transmitted between the first fitting body 31 and the first fitting groove 32, the inner wall body 33 and the cross wall body 34 receive the liquid inward of the storage box 10 (the back of the cover main body 21). It is difficult to reach the wire We with the metal terminal Tm.

  The inner wall body 33 is a flat wall body provided on the outer wall body 14 on the side of the first fitting body 31 inside the storage box 10. The inner wall body 33 is provided for each of the first fitting bodies 31 and integrated with the outer wall body 14 via the connecting body 16 (FIGS. 11 and 12). The inner wall body 33 is provided at an interval to the first insertion body 31. The inner wall body 33 extends along the slide insertion direction of the cover main body 21 with respect to the outer wall body 14 and extends along the cross direction with respect to the wall surface of the first fitting body 31. The illustrated inner wall body 33 extends between the insertion port 15 a side of the opening 15 and the tip end 14 b side of the outer wall body 14. Each inner wall body 33 has the wall surface 33a mutually opposingly arranged by mutually spacing (FIG. 4, FIG. 5, FIG. 11 and FIG. 12). Further, the illustrated inner wall body 33 is orthogonal to the wall surface of the first fitting body 31. Therefore, the wall surfaces 33a of the respective inner wall bodies 33 in this example are arranged to face each other in a parallel state with a space therebetween.

  The cross wall 34 is a flat wall that protrudes from the inner wall surface 21 d of the cover main body 21 along the wall surface 33 a of the inner wall 33. The cross wall 34 is provided for each of the inner walls 33. The cross wall 34 extends along the slide insertion direction and along the cross direction to the inner wall surface 21 d of the cover main body 21. The illustrated cross wall 34 is formed so that the entire wall surface 33a of the oppositely disposed inner wall body 33 can be covered with the wall surface 34a (FIGS. 11 and 12). In the slide cover 20, a space S is formed between the respective cross walls 34 (FIGS. 7, 8 and 10 to 12), and the wire We with the metal terminal Tm is accommodated in the space. Therefore, each cross wall 34 is formed so as to be able to hide the electric wire We with the metal terminal Tm between them. Further, the illustrated cross wall 34 is orthogonal to the inner wall surface 21 d of the cover main body 21. Thus, the cross walls 34 in this example are arranged in parallel and spaced apart from each other.

  Here, the respective cross walls 34 are formed so as to be fitted between the wall surfaces 33 a of the respective inner wall bodies 33 along with the slide insertion of the cover main body 21 into the outer wall body 14. Thereby, between the inner wall body 33 and the cross wall body 34 which become a pair, the clearance gap between the wall surface 33a and wall surface 34a which were opposingly arranged is a space | interval which can suppress the permeation of a liquid.

  The waterproof structure 30 further forms a labyrinth structure by fitting each other as a fitting structure different from the fitting structure of the first fitting body 31 and the first fitting groove 32 (from FIG. 3). 5 and 12) and the second fitting groove 36 (FIGS. 7 to 10 and 12). The second fitting body 35 and the second fitting groove 36 are fitted to each other, so that the outer wall body 14 and the slide cover 20 with respect to the wall surface of the first fitting body 31 and the first fitting groove 32 inside the storage box 10. Increase the creepage distance between Even if the liquid is transmitted between the first insertion body 31 and the first insertion groove 32, the second insertion body 35 and the second insertion groove 36 receive the liquid inward of the storage box 10 (cover main body 21 Make it difficult to reach the wire We with metal terminals Tm on the back).

  The second insertion body 35 is a flat wall which protrudes from the inner wall body 33 toward the opening 15 and extends along the slide insertion direction. The second insertion body 35 is provided for each inner wall body 33. The second insertion body 35 is extended along the cross direction to the wall surface of the first insertion body 31. The second fitting body 35 of this example is formed so that one wall surface 35a is disposed on the same plane as the wall surface 33a of the inner wall body 33 (FIGS. 3 to 5 and 12). Therefore, the second insertion body 35 is orthogonal to the wall surface of the first insertion body 31. Then, the wall surface 34 a of the cross wall 34 is disposed opposite to the wall surface 35 a of the second insertion body 35 in the same manner as the wall surface 33 a of the inner wall body 33. Further, the illustrated second insertion body 35 is an end of the inner wall body 33 on the opening 15 side extending toward the opening 15, and is provided as a part of the inner wall body 33.

  The second insertion body 35 may extend between the insertion opening 15a side of the opening 15 and the tip end 14b side of the outer wall 14, and a part of the second insertion body 35 extends in the slide insertion direction. It may be extended. The illustrated second fitting body 35 extends between the first fitting groove 32 side and the tip portion 14 b side on the tip portion 14 b side with respect to the first fitting groove 32 in the slide insertion direction. .

  The second insertion groove 36 is provided on the inner wall surface 21 d of the cover main body 21 for each second insertion body 35. The second insertion groove 36 is a groove into which the second insertion body 35 is inserted along with the slide insertion of the cover main body 21 into the outer wall body 14. The second insertion groove 36 has a first groove wall body 36a and a second groove wall body 36b in which wall surfaces spaced from each other are arranged opposite to each other in parallel (FIGS. 7, 8, 10, and 12). The first groove wall body 36a and the second groove wall body 36b are each formed as a flat wall body, and the space equivalent to the plate thickness of the second fitting body 35 is formed so that the second fitting body 35 can be fitted therein. Leave the space between them and place them opposite each other. In addition, the first groove wall body 36a and the second groove wall body 36b respectively project from the inner wall surface 21d of the cover main body 21 in a direction intersecting with the inner wall surface 21d. The illustrated first groove wall body 36a and the second groove wall body 36b respectively project in a direction orthogonal to the inner wall surface 21d.

  The first groove wall body 36a may be extended so as to cover the entire one wall surface 35a of the second fitting body 35 oppositely disposed in the slide insertion direction, the one wall surface 35a It may be extended to cover part of the The illustrated first groove wall body 36a extends in the slide insertion direction so as to cover the entire one of the wall surfaces 35a.

  Here, in the second fitting groove 36 of this example, a part (a part of the root on the cover main body 21 side) of the cross wall 34 disposed opposite to the second fitting body 35 is used as the first groove wall 36 a. Use (Figures 7, 8 and 12).

  The second groove wall body 36b extends so as to cover up the whole of the other wall surface 35b (FIGS. 4, 5 and 12) of the second fitting body 35 disposed opposite to each other in the slide insertion direction. It may be extended or extended so that a part of the other wall 35b can be concealed. The illustrated second groove wall body 36b extends in the slide insertion direction so as to cover the whole of the other wall surface 35b. That is, the second groove wall body 36b extends between the first fitting groove 32 side and the tip portion 14b side on the tip portion 14b side with respect to the first fitting groove 32 in the slide insertion direction. There is. Therefore, the second fitting groove 36 in this example fits the second fitting body 35 on the tip end 14 b side of the cover main body 21 after the slide insertion is completed. Here, the illustrated second groove wall body 36 b constitutes the groove bottom of the first insertion groove 32.

  As described above, in the illustrated storage box 10, the insertion structure of the first insertion body 31 and the first insertion groove 32 and the insertion structure of the second insertion body 35 and the second insertion groove 36 are inserted at the opening 15. It is divided into the mouth 15 a side and the tip end 14 b side of the outer wall body 14. And in this example storage box 10, each insertion structure is put in order and arrange | positioned in the slide insertion direction.

  As described above, the waterproof structure 30 of the slide cover 20 according to the present embodiment suppresses the entry of liquid from the outside of the storage box 10 by the insertion structure of the first insertion body 31 and the first insertion groove 32. Can. In addition, even if the waterproof structure 30 can not be suppressed by the insertion structure and liquid infiltrates, the intrusion of the liquid further to the back of the insertion structure of the inner wall body 33 and the cross wall body 34 and the second insertion body This can be suppressed by the insertion structure of 35 and the second insertion groove 36. Therefore, this waterproof structure 30 can improve waterproof performance more than before.

  Furthermore, the waterproof structure 30 of the slide cover 20 of the present embodiment has the respective end portions in the outer wall body 14 so that the width of the opening 15 becomes narrower from the first opening 12A side toward the second opening 12B side. 14a is inclined. The respective end portions 21a of the cover main body 21 are inclined toward the center with respect to the slide insertion direction so that the width becomes narrower toward the slide insertion direction with respect to the outer wall body 14.

  Here, the respective end portions 14a of the outer wall body 14 are respectively inclined so as to be arranged at equal intervals after the slide insertion is completed with respect to the respective end portions 21a of the cover main body 21. Thereby, in the storage box 10, the insertion workability at the time of slidingly inserting the cover main body 21 into the outer wall body 14 can be improved, and between the outer wall body 14 and the cover main body 21 after the slide insertion is completed. I can suppress the rash.

  For example, when the cover main body 21 is slidingly inserted into the outer wall body 14, first, the tip end 21 b of the cover main body 21 reaches the insertion port 15 a in the opening 15. The width of the insertion opening 15a is wider than the width of the tip 21b of the cover main body 21 due to the inclination of each end 14a of the outer wall body 14 and the inclination of each end 21a of the cover main body 21. That is, in the outer wall body 14, the opening (insertion opening 15a) is widely taken when the cover main body 21 starts to slide. Therefore, in the outer wall body 14, the opening 15 is easy to pick up the front end portion 21b of the cover main body 21, and therefore, the insertion workability at the time of slide insertion of the cover main body 21 is excellent. Further, in the outer wall body 14, because of the width of the opening, even if the cover main body 21 starts to be inserted while being inclined with respect to the intended slide insertion direction, biting of the cover main body 21 is less likely to occur. . Therefore, in the outer wall body 14, the slide insertion work of the cover main body 21 can be continued as it is.

  Furthermore, as the slide insertion work of the cover main body 21 progresses between the outer wall body 14 and the cover main body 21, the distance between the end 14a and the end 21a narrows and reaches the slide insertion completion position. By doing this, the interval is the narrowest. Therefore, between the outer wall body 14 and the cover main body 21, the gap between the end portions 14 a and 21 a after completion of the slide insertion is narrowed most in consideration of the productivity and the slide insertion workability. It is possible to suppress the infiltration of the liquid from between the end 14a and the end 21a. Thus, the waterproof structure 30 of the slide cover 20 of the present embodiment can further improve the waterproof performance by inclining the end portions 14a and 21a.

  Moreover, since the electrical connection box 1 and the wire harness WH of the present embodiment include the waterproof structure 30, the effects of the waterproof structure 30 can be exhibited.

DESCRIPTION OF SYMBOLS 1 electrical connection box 10 accommodation box 14 outer wall body 14a end portion 14b tip end portion 14c outer wall surface 14d inner wall surface 15 opening 15a insertion port 20 slide cover 21 cover main body 21a end portion 21b tip portion 21c outer wall surface 21d inner wall surface 30 waterproof structure 31 DESCRIPTION OF SYMBOLS 1 insert body 31a inner wall surface 31b outer wall surface 32 1st insert groove 33 inner wall body 33a wall surface 34 cross wall body 34a wall surface 35 2nd insert body 35a wall surface 35b wall surface 36 2nd insertion groove AC accommodation object We electric wire WH wire harness

Claims (4)

A flat plate-shaped first fitting body which is protruded along the opening from two ends oppositely disposed across the opening in the outer wall of the storage box;
A flat plate of a slide cover which has an end portion slidably inserted into the outer wall along the opening and disposed opposite to the end portion of the outer wall after the slide insertion is completed for each end of the outer wall The grooves are provided in the cover body for each of the first fitting bodies, respectively provided in the respective end portions of the cover bodies, and the first fitting bodies are fitted together with the slide insertion of the cover body into the outer wall body First fitting groove, and
A wall body for each of the first fitting bodies provided on the outer wall body on the side of the first fitting body on the inner side of the storage box, extending along a sliding insertion direction of the cover main body with respect to the outer wall body; An inner wall extending along a direction intersecting with a wall surface of the first insertion body;
An intersection made to project from the inner wall surface of the cover body along the wall surface of the inner wall body for each of the inner wall bodies, and be fitted between the wall surfaces of the respective inner wall bodies with slide insertion of the cover main body into the outer wall body. With the wall,
A second fitting body for each of the inner wall bodies that protrudes from the inner wall body toward the opening and extends along the slide insertion direction;
A groove provided for each of the second fitting bodies in the inner wall surface of the cover body, and a second fitting groove into which the second fitting body is fitted with slide insertion of the cover body into the outer wall body;
Waterproof structure of slide cover characterized by having. The cover body is inclined toward the center with respect to the slide insertion direction so that the width of the cover body becomes narrower toward the slide insertion direction;
2. The apparatus according to claim 1, wherein the end of each of the outer wall bodies is inclined to be arranged at equal intervals after the slide insertion is completed with respect to each of the ends of the cover main body. Slide cover waterproof structure. An outer wall body having an opening, and a storage box provided with a slide cover having a flat cover body slide-inserted into the outer wall body along the opening;
An electronic component holder for housing and holding the electronic component or the electronic component electrically connected to one end side of the electric wire inside the housing box, and a housing target object housed in the housing box,
Equipped with
The outer wall body has two ends oppositely disposed across the opening,
The cover body has an end disposed opposite to the end of the outer wall after the slide insertion is completed for each of the ends of the outer wall,
The housing box has a waterproof structure that suppresses the inflow of liquid from the outside to the inside,
The waterproof structure is
A flat plate-shaped first fitting body which is protruded along the opening from each of the end portions of the outer wall body,
A first fitting groove provided on each of the ends of each of the cover bodies and into which the first fitting body is fitted with slide insertion of the cover body into the outer wall body;
A wall body for each of the first fitting bodies provided on the outer wall body on the side of the first fitting body on the inner side of the storage box, extending along a sliding insertion direction of the cover main body with respect to the outer wall body; An inner wall extending along a direction intersecting with a wall surface of the first insertion body;
An intersection made to project from the inner wall surface of the cover body along the wall surface of the inner wall body for each of the inner wall bodies, and be fitted between the wall surfaces of the respective inner wall bodies with slide insertion of the cover main body into the outer wall body. With the wall,
A second fitting body for each of the inner wall bodies that protrudes from the inner wall body toward the opening and extends along the slide insertion direction;
A groove provided for each of the second fitting bodies in the inner wall surface of the cover body, and a second fitting groove into which the second fitting body is fitted with slide insertion of the cover body into the outer wall body;
Electrical connection box characterized by having. An outer wall body having an opening, and a storage box provided with a slide cover having a flat cover body slide-inserted into the outer wall body along the opening;
With the electric wire,
An electronic component holding body for housing and holding the electronic component or the electronic component electrically connected to one end side of the electric wire inside the housing box, and a housing target object housed in the housing box,
Equipped with
The outer wall body has two ends oppositely disposed across the opening,
The cover body has an end disposed opposite to the end of the outer wall after the slide insertion is completed for each of the ends of the outer wall,
The housing box has a waterproof structure that suppresses the inflow of liquid from the outside to the inside,
The waterproof structure is
A flat plate-shaped first fitting body which is protruded along the opening from each of the end portions of the outer wall body,
A first fitting groove provided on each of the ends of each of the cover bodies and into which the first fitting body is fitted with slide insertion of the cover body into the outer wall body;
A wall body for each of the first fitting bodies provided on the outer wall body on the side of the first fitting body on the inner side of the storage box, extending along a sliding insertion direction of the cover main body with respect to the outer wall body; An inner wall extending along a direction intersecting with a wall surface of the first insertion body;
An intersection made to project from the inner wall surface of the cover body along the wall surface of the inner wall body for each of the inner wall bodies, and be fitted between the wall surfaces of the respective inner wall bodies with slide insertion of the cover main body into the outer wall body. With the wall,
A second fitting body for each of the inner wall bodies that protrudes from the inner wall body toward the opening and extends along the slide insertion direction;
A groove provided for each of the second fitting bodies in the inner wall surface of the cover body, and a second fitting groove into which the second fitting body is fitted with slide insertion of the cover body into the outer wall body;
A wire harness characterized by comprising.

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