JP2019068636A - Connection structure of objects to be stored, electric connection box, and wiring harness - Google Patents

Abstract

To improve insertion workability while suppressing rattling.SOLUTION: A locking mechanism 30 locking an object to be stored 20 at an accommodation completion position of a housing box 10 comprises: first and second locking bodies 31, 32; first and second guide rails 33, 34 which guide each other; and third and fourth guide rails 35, 36. The first and third guide rails respectively have guide surfaces 33a and 35a, interposing the first locking body therebetween, extending in the insertion direction, and inclining toward the first locking body side as going to the insertion direction. The second and fourth guide rails respectively have guide surfaces 34a and 36a, interposing the second locking body therebetween, extending in the insertion direction, and inclining toward the second locking body side as going to the insertion direction. The 33a, 35a and 34a, 36a are arranged opposed to each other in a parallel state at the accommodation completion position. All of the guide surfaces are inclined larger than a draft angle of a mold as well as at an inclination angle θ less than the maximum inclination angle allowing a guide operation by paired guide rails.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a connection structure of an object to be accommodated, an electrical connection box, and a wire harness.

  DESCRIPTION OF RELATED ART Conventionally, the connection structure for connecting an accommodation target object and a storage box is known. The connection structure includes a locking mechanism that locks the inserted storage object at the storage completion position of the storage box. The locking mechanism includes locking members respectively provided on the storage target and the storage box. Each locking body guides the storage subject to the storage completion position and a locking portion such as a claw portion that can lock the movement in the removal direction between the storage target and the storage box at the storage completion position. And a guide rail. This type of connection structure is disclosed, for example, in Patent Documents 1 and 2 below.

Japanese Patent Application Laid-Open No. 10-70811 JP 2004-72941 A

  By the way, the object to be accommodated and the container box are formed of synthetic resin, and the extraction direction from the mold is set along any one of the insertion and extraction directions between them. Further, since the storage object and the storage box are molded together with the locking member, the removal direction from the mold is set to be along the extending direction of the guide rail (the guiding direction of the storage object). Therefore, the draft of the mold is provided on the wall surface, the end face, and the like of the storage object and the storage box at a minute inclination angle along the extraction direction. The wall surface, the end surface, etc. become an inclined surface inclined according to the draft of the mold. Here, since the storage object is an element in determining the removal direction from the mold also in its own shape, some may be removed in the insertion direction to the storage box, and may be removed in the removal direction from the storage box There are also The direction of removal from the mold likewise depends on the shape of the storage box. Therefore, in the guide rails that guide each other, the two inclined surfaces are not necessarily disposed opposite to each other in a parallel state, and a large or small difference occurs in the gap at each position between the respective inclined surfaces. There is a possibility. For example, when the respective inclined surfaces are disposed to face each other in a state of being inclined in the opposite direction to each other, large and small differences may occur in the gap at each position between them. In addition, even if the inclined surfaces are arranged opposite to each other in the same direction, if the inclination angles are different, large and small differences may occur in the gap at each position between them. . Therefore, in the conventional locking mechanism, even if the locking members can be inserted and fitted, rattling may occur between the inclined surfaces of the respective guide rails. Moreover, in the conventional locking mechanism, there is a possibility that the inclined surfaces of the respective guide rails abut against each other before the storage target reaches the storage completion position, and the insertion workability of the locking members may be reduced. .

  Then, this invention makes it the objective to provide the connection structure of an accommodation target object, an electric connection box, and a wire harness which can suppress rattle while improving insertion workability.

  In order to achieve the above object, the connection structure of the storage subject according to the present invention includes a locking mechanism that locks the storage subject at the storage completion position of the storage box. The locking mechanism locks the movement in the removal direction between the storage target and the storage box by locking the storage target to each other when the storage target is at the storage completion position. The first locking member and the first guiding member guide each other along the insertion direction of the storage object into the storage box until the first locking member and the second locking member reach lockable positions with each other. And second guide rails, and third and fourth guide rails guiding each other along the insertion direction until the first and second locking bodies reach a position where they can lock with each other. The first and third guide rails are disposed to interpose the first locking body in a direction perpendicular to the insertion direction, and extend in the insertion direction and go in the insertion direction. Each have a guide surface inclined to the side of the first locking body. The second and fourth guide rails are disposed to interpose the second locking body in a direction perpendicular to the insertion direction, and extend in the insertion direction and toward the insertion direction. Each of the guide surfaces of the first and second guide rails is parallel to each other when the storage target is in the storage completion position. The guide surfaces of the third and fourth guide rails are formed so as to be opposed to each other in the state, so that the accommodation objects are arranged to be opposed in parallel with each other when the accommodation completion position is established. Forming all of the guide surfaces larger than the draft of the mold in the first and second locking bodies and the first to fourth guide rails, and forming a pair of the guide rails Guidance operation It is characterized in that tilting at the maximum inclination angle following the inclination angle as possible.

  Here, between the guide surface of the second guide rail and the guide surface of the fourth guide rail, insertion openings into which the first locking body and the first and third guide rails are inserted are provided. The inclination angles of all the guide surfaces are further determined by the third and fourth gaps between the guide surfaces of the first and second guide rails when the storage target is at the storage completion position. The total value of the gaps between the guide surfaces of the guide rails is 0.6 mm or more, and the distance between the guide surface of each of the second and fourth guide rails at the insertion opening and the insertion opening are reached It is preferable to set the difference in the distance between the guide surface of each of the first and third guide rails at the insertion opening to 2 mm or less.

  Further, it is desirable to set the inclination angles of all the guide surfaces within the range of 3 degrees or more and 15 degrees or less.

  Further, in order to achieve the above object, the electrical connection box according to the present invention locks the storage object, the storage box for storing the storage object, and the storage object at the storage completion position of the storage box. And a locking mechanism. The storage target is an electronic component that is electrically connected to one end of a wire inside the storage box, or an electronic component holder that stores and holds the electronic component. The locking mechanism locks the movement in the removal direction between the storage target and the storage box by locking the storage target to each other when the storage target is at the storage completion position. The first locking member and the first guiding member guide each other along the insertion direction of the storage object into the storage box until the first locking member and the second locking member reach lockable positions with each other. And second guide rails, and third and fourth guide rails guiding each other along the insertion direction until the first and second locking bodies reach a position where they can lock with each other. The first and third guide rails are disposed to interpose the first locking body in a direction perpendicular to the insertion direction, and extend in the insertion direction and go in the insertion direction. Each have a guide surface inclined to the side of the first locking body. The second and fourth guide rails are disposed to interpose the second locking body in a direction perpendicular to the insertion direction, and extend in the insertion direction and toward the insertion direction. Each of the guide surfaces of the first and second guide rails is parallel to each other when the storage target is in the storage completion position. The guide surfaces of the third and fourth guide rails are formed so as to be opposed to each other in the state, so that the accommodation objects are arranged to be opposed in parallel with each other when the accommodation completion position is established Forming all of the guide surfaces larger than the draft of the mold in the first and second locking bodies and the first to fourth guide rails, and forming a pair of the guide rails Guidance operation It is characterized in that tilting at the maximum inclination angle following the inclination angle as possible.

  Further, in order to achieve the above object, the wire harness according to the present invention accommodates an electric wire, an accommodation object, the accommodation object, and one end side of the electric wire inside and the other end side of the electric wire outside And a locking mechanism for locking the storage target at the storage completion position of the storage box. The storage target is an electronic component that is electrically connected to one end side of the electric wire inside the storage box or an electronic component holder that stores and holds the electronic component. The locking mechanism locks the movement in the removal direction between the storage target and the storage box by locking the storage target to each other when the storage target is at the storage completion position. The first locking member and the first guiding member guide each other along the insertion direction of the storage object into the storage box until the first locking member and the second locking member reach lockable positions with each other. And second guide rails, and third and fourth guide rails guiding each other along the insertion direction until the first and second locking bodies reach a position where they can lock with each other. The first and third guide rails are disposed to interpose the first locking body in a direction perpendicular to the insertion direction, and extend in the insertion direction and go in the insertion direction. Each have a guide surface inclined to the side of the first locking body. The second and fourth guide rails are disposed to interpose the second locking body in a direction perpendicular to the insertion direction, and extend in the insertion direction and toward the insertion direction. Each of the guide surfaces of the first and second guide rails is parallel to each other when the storage target is in the storage completion position. The guide surfaces of the third and fourth guide rails are formed so as to be opposed to each other in the state, so that the accommodation objects are arranged to be opposed in parallel with each other when the accommodation completion position is established. Forming all of the guide surfaces larger than the draft of the mold in the first and second locking bodies and the first to fourth guide rails, and forming a pair of the guide rails Guidance operation It is characterized in that tilting at the maximum inclination angle following the inclination angle as possible.

  In the connection structure of the storage object according to the present invention, in the locking mechanism, when the storage target is inserted into the storage box, the tips of the first and third guide rails on the first locking body side (insertion The tip on the direction side reaches the insertion opening formed by the second and fourth guide rails on the second locking body side. In this locking mechanism, a gap (insertion port) is widely taken when engagement between the first locking body side and the second locking body side starts. Therefore, in this locking mechanism, the insertion opening can easily pick up the tips of the first and third guide rails. Therefore, since this locking mechanism is excellent in the insertion workability between the first locking body side and the second locking body side, the insertion workability of the storage target into the storage box is improved. be able to. Furthermore, this locking mechanism narrows the gap formed by the first and third guide rails on the first locking body side and the second and fourth guide rails on the second locking body side in the housing complete position. You can do it, and you can control backlash. As described above, in the connection structure of the storage target according to the present invention, the operation of inserting each other when the first locking body side and the second locking body side start to be engaged is easily performed. Furthermore, in this connection structure, when the first locking body and the second locking body can be locked, the first and third guide rails and the second guiding rail on the first locking body side can be used. The rattling between the second and fourth guide rails on the locking body side is suppressed. Therefore, this connection structure can suppress rattling between the accommodation object and the accommodation box while improving the workability of inserting the accommodation object into the accommodation box. Moreover, since the electrical connection box and the wire harness according to the present invention have the connection structure, the effect of the connection structure can be obtained.

FIG. 1 is a perspective view showing the electrical connection box and the wire harness of the embodiment, showing a state in which the inside of the storage box is seen through from the second housing member side. FIG. 2 is a perspective view showing a state in which the electronic component holder is pulled out of the storage box (first housing member). FIG. 3 is a perspective view of the state where the electronic component holder is pulled out of the storage box (first housing member), as viewed from another angle. FIG. 4 is a plan view of the housing box (first housing member) and a part of the electronic component holders housed in the housing box (first housing member) as viewed from the first opening side. FIG. 5 is a perspective view showing the first locking body and the first and third guide rails. FIG. 6 is a perspective view showing a second locking body and second and fourth guide rails. FIG. 7 is a cross-sectional view taken along the line X-X in FIG. 4 and shows the locking mechanism in an enlarged manner. FIG. 8 is a cross section taken along line X1-X1 of FIG. FIG. 9 is a cross section taken along line X2-X2 of FIG. FIG. 10 is a cross-sectional view of the locking mechanism when the tips of the first and third guide rails reach the insertion openings of the second and fourth guide rails.

  Below, the connection structure of the accommodation target object which concerns on this invention, an electrical connection box, and embodiment of a wire harness are described in detail based on drawing. The present invention is not limited by this embodiment.

[Embodiment]
One of the embodiments of the connection structure, the electrical connection box, and the wire harness according to the present invention will be described with reference to FIGS. 1 to 10.

  The code | symbol 1 of FIG. 1 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 target 20 stored in the storage box 10 (FIGS. 1 to 3).

  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 (FIGS. 1 to 3). The storage room 11 is a room for storing the storage target 20. At least one storage object 20 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 (FIGS. 1 to 3). The opening 12 is an insertion port when the storage target object 20 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 target 20 is inserted from the opening 12 and stored in the storage chamber 11. As the storage target object 20 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 storing and holding the electronic component, or the like can be considered. The electrical 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 target object 20, and the connection target via the electric wire We to the electronic component. 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 (FIGS. 1 to 3). 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 20 is stored in each of the storage chambers 11.

  In the first housing member 10A, the electronic component as the storage target 20 and the electronic component housed and held in the electronic component holder as the storage target 20 are inserted from the first opening 12A. On the other hand, the electronic component holder as the storage target 20 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 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.

  As described above, the electric connection box 1 of the present embodiment includes the plurality of storage chambers 11 and the plurality of storage target objects 20, and the electronic components and the electronic component holder are stored as the storage target objects 20. . Therefore, when describing a specific example of the electrical connection box 1, an electronic component holder will be mentioned as an example of the storage object 20. Here, attention is paid to a certain storage chamber 11A and the electronic component holder 20A (FIGS. 1 to 3).

  The electronic component holder 20A is molded of an insulating material such as a synthetic resin. The illustrated electronic component holder 20A is formed to be able to accommodate and hold a plurality of electronic components. The electronic component holder 20A may be referred to as a block or a cassette.

  While the illustrated electronic component holder 20A is inserted from the second opening 12B to the storage completion position of the storage chamber 11A, it is removed from the storage chamber 11A via the second opening 12B in the opposite direction to the insertion direction. You can also. The electronic component holder 20A is extracted from a molding die (not shown) along the insertion / removal direction with respect to the storage chamber 11A. The electronic component holder 20A is removed from the mold along the removal direction with respect to the storage chamber 11A. Therefore, the electronic component holder 20A is provided with a draft of the die which is inclined inward toward the insertion direction side as viewed in the insertion / removal direction with respect to the storage chamber 11A. That is, in the electronic component holder 20A, the wall surface, the end surface, etc. along the insertion / removal direction is an inclined surface inclined according to the extraction gradient of the mold (an inclined surface inclined inward toward the insertion direction) ). The inclination angle with respect to the insertion / extraction direction of the inclined surface is set, for example, within the range of 0.5 degrees or more and 1 degree or less.

  The first housing member 10A in which the storage chamber 11A is formed has a plurality of wall bodies (an outer peripheral wall and an inner wall) connecting the first opening 12A and the second opening 12B. Here, the direction in which the first opening 12A and the second opening 12B are connected and the direction along the wall is made to coincide with the insertion / removal direction of the electronic component holder 20A. The first housing member 10A is extracted from the molding die (not shown) along the direction. The first housing member 10A is extracted from the mold along the insertion direction of the electronic component holder 20A with respect to the housing chamber 11A. Therefore, the first housing member 10A is provided with a draft of the mold which is inclined inward toward the insertion direction side as viewed in the insertion / removal direction of the electronic component holder 20A with respect to the storage chamber 11A. . That is, also in the first housing member 10A, the wall surface, the end surface, etc. along the inserting / removing direction is an inclined surface inclined according to the extraction gradient of the mold (inclination inclined toward the inward direction toward the insertion direction) Face). The inclination angle of the inclined surface with respect to the insertion and removal direction is set, for example, within a range of 0.5 degrees or more and 1 degree or less.

  In the electric connection box 1, the storage chamber 11A has a plurality of inner wall surfaces 15 arranged to face the electronic component holder 20A with a gap when the storage of the electronic component holder 20A is finished ( 2 and 3). In addition, the electronic component holder 20A has a plurality of outer wall surfaces 21 disposed so as to be opposed to the inner wall surface 15 at intervals when storage in the storage chamber 11A is completed (FIGS. 2 and 3) . The inner wall surface 15 and the outer wall surface 21 are also inclined surfaces corresponding to the draft of the mold.

  The electric connection box 1 includes a connection structure (connection structure of an object to be accommodated) for connecting the electronic component holder 20A inserted to the accommodation completion position to the accommodation chamber 11A. The connection structure includes a locking mechanism 30 (FIGS. 2 to 6) for locking the electronic component holder 20A at the storage completion position of the storage box 10.

  The locking mechanism 30 includes first and second locking members 31 and 32 that lock each other when the electronic component holder 20A is at the storage completion position (FIG. 2, FIG. 3, FIG. 5, and FIG. 6). . The first locking body 31 and the second locking body 32 mutually lock at the storage completion position, whereby the electronic component holder 20A and the storage box 10 (storage chamber 11A of the first housing member 10A) Lock the movement in the removal direction between

  In the locking mechanism 30, the first locking body 31 is provided in one of the electronic component holder 20A and the storage box 10, and the second locking body 32 is provided in the other. Specifically, the first locking body 31 is provided on one of the outer wall surface 21 and the inner wall surface 15 to be a pair, and the second locking body 32 is provided on the other. Here, the first locking body 31 is provided on the outer wall surface 21, and the second locking body 32 is provided on the inner wall surface 15. In the electric connection box 1, a plurality of sets of combinations of the outer wall surface 21 and the inner wall surface 15 which are paired are provided, and at least two of them are provided with the locking mechanism 30. In the electrical connection box 1, at least one of all the locking mechanisms 30 may have the structure shown below.

  The first locking body 31 and the second locking body 32 have, for example, claw portions that can abut each other so as to lock the movement in the removal direction of each other at the storage completion position as the locking portions 31a and 32a. Have (Figures 5 and 6). Further, at least one of the first locking body 31 and the second locking body 32 has flexibility so that it can be bent by an external force. Here, the first locking body 31 has flexibility. The first locking body 31 is formed to be cantilevered with the outer wall 21 side as the base, and the gap between the locking portion 31 a and the outer wall 21 with the locking portion 31 a on the free end side It is formed to be changeable. Accordingly, when the electronic component holder 20A is inserted into the storage chamber 11A, the first locking body 31 is pushed toward the outer wall 21 by the second locking body 32 and is thus bent. The locking portion 32 a of the second locking body 32 can be made to ride over. The locking portion 32a which has climbed over the first locking body 31 is disposed opposite to the locking portion 31a in the insertion / removal direction, and the locking with the locking portion 31a is possible. Further, the first locking body 31 can be bent even when pressed to the outer wall surface 21 side with a jig or the like, and with the occurrence of the bending, the arrangement positions of the respective locking portions 31a and 32a ( The lockable state can be released. The electronic component holder 20A can be removed from the storage chamber 11A together with the release of the lockable state.

  Furthermore, in the locking mechanism 30, the storage box 10 of the electronic component holder 20A (the storage chamber of the first housing member 10A until the first and second locking members 31, 32 reach the position where they can lock with each other). 11A) until the first and second guide rails 33, 34 guiding each other along the inserting direction to the 11A) and the first and second locking bodies 31, 32 reach a position where they can be locked with each other The third and fourth guide rails 35 and 36 guide each other along the direction (FIGS. 2, 3 and 5 to 7).

  In this locking mechanism 30, the first and third guide rails 33 and 35 are provided in one of the electronic component holder 20A and the storage box 10, and the second and fourth guide rails 34 are provided in the other. , 36 are provided. Specifically, the first and third guide rails 33 and 35 are provided on one of the outer wall surface 21 and the inner wall surface 15 to be paired, and the second and fourth guide rails 34 and 36 are provided on the other. Provide Here, the first and third guide rails 33 and 35 are provided on the outer wall surface 21, and the second and fourth guide rails 34 and 36 are provided on the inner wall surface 15.

  The first and third guide rails 33 and 35 are disposed so as to interpose the first locking body 31 in the direction perpendicular to the insertion direction of the electronic component holder 20A. The first and third guide rails 33, 35 each have at least one guide surface 33a, 35a extending in the insertion direction (FIGS. 5, 7 and 8). The guide surface 33a of the first guide rail 33 and the guide surface 34a of the second guide rail 34 along the insertion direction when the electronic component holder 20A is inserted into the storage box 10 It is a wall surface or an end surface which guides each other. The guide surface 35a of the third guide rail 35 and the guide surface 36a of the fourth guide rail 36 along the insertion direction when the electronic component holder 20A is inserted into the storage box 10 It is a wall surface or an end surface which guides each other. Each of the guide surfaces 33a and 35a is an inclined surface which is inclined toward the first locking body 31 as it goes in the insertion direction.

  The second and fourth guide rails 34, 36 are disposed such that the second locking body 32 is interposed therebetween in a direction perpendicular to the insertion direction of the electronic component holder 20A. The second and fourth guide rails 34, 36 each have at least one guide surface 34a, 36a extending in the insertion direction (FIGS. 6, 7 and 9). Each of the guide surfaces 34a and 36a is an inclined surface which is inclined toward the second locking body 32 toward the insertion direction. Here, the first locking body 31 and the first and third guide rails 33, 35 are inserted between the guide surface 34a of the second guide rail 34 and the guide surface 36a of the fourth guide rail 36. An insertion port 37 is formed. When the electronic component holder 20A is inserted into the storage box 10, the first locking body 31 and the first and third guide rails 33 and 35 are inserted from the insertion port 37.

  The guide surfaces 33a and 34a of the pair of first and second guide rails 33 and 34 are formed so as to face each other in parallel with each other when the electronic component holder 20A is at the storage completion position (see FIG. Figure 7). Further, the guide surfaces 35a, 36a of the third and fourth guide rails 35, 36 as a pair are formed so as to be disposed parallel to each other when the electronic component holder 20A is at the storage completion position. Do it (Figure 7).

  Furthermore, all the guide surfaces 33a, 34a, 35a, 36a are larger than the draft of the mold in the first and second locking members 31, 32 and the first to fourth guide rails 33-36, and , And inclined at an inclination angle θ equal to or less than the maximum inclination angle at which the guide operation between the pair of guide rails (the first and second guide rails 33 and 34 and the third and fourth guide rails 35 and 36) is possible. 8 and 9). For example, the inclination angle θ of all the guide surfaces 33a, 34a, 35a, 36a is set in the range of 3 degrees or more and 15 degrees or less. Here, with the inclination angle θ at which the guide operation mentioned here is possible, the guide surfaces (a pair of guide surfaces 33a and 34a, a pair of guide surfaces 35a and 36a) guiding each other are guided along the wall surfaces. It is an angle at which the component holder 20A can reach the accommodation completion position, and it has a meaning of excluding the one in which the guide surfaces which are the pair are merely approaching or abutting. Of all the guide surfaces 33a, 34a, 35a, 36a may be set with respect to the insertion / removal direction of the electronic component holder 20A as follows.

  For example, here, the spacing S1 at the insertion opening 37 of the guide surfaces 34a and 36a of the second and fourth guide rails 34 and 36, and the first and third guide rails 33 reaching the insertion opening 37. , 35 at intervals S2 (<S1) at the insertion openings 37 of the respective guide surfaces 33a, 35a (FIG. 10). Furthermore, here, the gap G1 {<(D1 / 2)} between the guide surfaces 33a and 34a when the electronic component holder 20A is at the housing complete position, and the guide surface when the electronic component holder 20A is at the housing complete position A gap G2 {<(D1 / 2)} between 35a and 36a is used (FIG. 7). The gaps G1 and G2 are gaps when the electronic component holder 20A is disposed at the housing complete position, and have the same size along the direction orthogonal to the insertion and removal direction of the electronic component holder 20A. The inclination angle θ of all the guide surfaces 33a, 34a, 35a, 36a is such that the total value of the respective gaps G1, G2 is equal to or greater than a predetermined size (for example, 0.6 mm) and between the interval S1 and the interval S2. Gold of places other than the guide surfaces 33a, 34a, 35a, 36a in which the difference D1 (= S1-S2) is less than a predetermined size (for example, 2 mm) and in the first to fourth guide rails 33-36. Maximum inclination angle larger than the draft of the die and capable of guiding the pair of guide rails (first and second guide rails 33 and 34, third and fourth guide rails 35 and 36). Set to the following size.

  In the locking mechanism 30, when the electronic component holder 20A is inserted into the storage box 10, first, the tips of the first and third guide rails 33, 35 on the first locking body 31 side ( The leading end on the insertion direction side reaches the insertion opening 37 formed by the second and fourth guide rails 34 and 36 on the second locking body 32 side. In the locking mechanism 30, the engagement between the first locking body 31 side and the second locking body 32 side starts with the arrival at the insertion port 37. In the locking mechanism 30, a gap (insertion port 37) is widely taken when engagement between the first locking body 31 side and the second locking body 32 side starts. For example, when the engagement is started, as described above, in the insertion opening 37, the gap is open by the difference D1. Therefore, in the locking mechanism 30, the insertion opening 37 can easily pick up the tips of the first and third guide rails 33, 35. Therefore, since this locking mechanism 30 is excellent in the insertion workability between the first locking body 31 side and the second locking body 32 side, the storage box 10 of the electronic component holding body 20A. The insertion workability can be improved. In addition, since the locking mechanism 30 is inserted at the same time as the electronic component holder 20A is inclined with respect to the expected insertion direction because of the width of the opening, the first and the first locking body 31 side and the first Biting between the third guide rails 33 and 35 and the second and fourth guide rails 34 and 36 on the second locking member 32 side is less likely to occur. Therefore, the locking mechanism 30 can continue the insertion work of the electronic component holder 20A as it is.

  Subsequently, in the locking mechanism 30, the insertion work of the electronic component holder 20A into the storage box 10 proceeds, and the electronic component holder 20A reaches the storage completion position, thereby the first locking member 31 and It will be in the state which can be latched with the 2nd latching body 32. FIG. In the housing complete position, the distance S3 between the guide surfaces 34a and 36a of the second and fourth guide rails 34 and 36 and the distance S4 between the guide surfaces 33a and 35a of the first and third guide rails 33 and 35 (<S3 ) And a difference D2 (= S3-S4) has occurred (FIG. 7). The intervals S3 and S4 are along the direction orthogonal to the insertion and removal direction of the electronic component holder 20A. At the storage completion position, the intervals S3 and S4 are different at each position in the insertion and removal direction, but the difference D2 is the same size at each position. The difference D2 represents the total value of the gaps G1 and G2 shown above. That is, in the housing complete position, a gap formed by the first and third guide rails 33 and 35 on the first locking body 31 side and the second and fourth guide rails 34 and 36 on the second locking body 32 side. (The total value of the gaps G1 and G2) is narrowed, and rattling can be suppressed.

  As described above, in the connection structure of the storage object 20 of the present embodiment, the insertion work is performed when the first locking body 31 side and the second locking body 32 side start to be engaged. It is easier. Furthermore, in this connection structure, when the first locking body 31 and the second locking body 32 are in the lockable state, the first and third guides on the first locking body 31 side are provided. A rattling between the rails 33 and 35 and the second and fourth guide rails 34 and 36 on the second locking body 32 side is suppressed. Therefore, this connection structure suppresses rattling between the storage object 20 and the storage box 10 while improving the workability of inserting the storage object 20 (the electronic component holder 20A) into the storage box 10. be able to. Moreover, since the electrical connection box 1 and the wire harness WH of this embodiment are provided with the connection structure, the effect of the connection structure can be exhibited.

DESCRIPTION OF SYMBOLS 1 electrical-connection box 10 accommodation box 20 accommodation object 20A electronic component holding body 30 latching mechanism 31 1st latching body 32 2nd latching body 33 1st guide rail 34 2nd guide rail 35 3rd guide rail 36 4th Guide rail 33a, 34a, 35a, 36a Guide surface 37 Insertion port D1 Difference G1, G2 Clearance S1, S2 Spacing We Electric wire WH Wire harness

Claims (5)

A locking mechanism for locking the storage target at the storage completion position of the storage box;
The locking mechanism locks the movement in the removal direction between the storage target and the storage box by locking each other when the storage target is at the storage completion position. And the first and second guides guiding each other along the insertion direction of the storage object into the storage box until the first and second locking bodies reach a position where they can be locked to each other. The second and third guide rails, and the third and fourth guide rails guiding each other along the insertion direction until the first and second locking members reach the lockable positions.
The first and third guide rails are disposed such that the first locking body is interposed therebetween in a direction orthogonal to the insertion direction, and extend in the insertion direction and move toward the insertion direction. Each having a guide surface inclined to the first locking body side,
The second and fourth guide rails are disposed such that the second locking body is interposed therebetween in a direction perpendicular to the insertion direction, and extend in the insertion direction and move toward the insertion direction. Each having a guide surface inclined to the second locking body side,
The guide surfaces of each of the first and second guide rails are formed so as to be disposed to face each other in parallel with each other when the accommodation target is at the accommodation completion position,
The guide surfaces of each of the third and fourth guide rails are formed so as to be disposed opposite to each other in parallel with each other when the accommodation target is at the accommodation completion position,
All the guide surfaces are larger than the draft of the mold in the first and second locking members and the first to fourth guide rails, and the guide operation between the guide rails as a pair is A connection structure of an object to be accommodated characterized in that it is inclined at an inclination angle equal to or less than the possible maximum inclination angle. Between the guide surface of the second guide rail and the guide surface of the fourth guide rail, there are formed insertion openings into which the first locking body and the first and third guide rails are inserted,
The inclination angles of all the guide surfaces are further determined by the gaps between the guide surfaces of the first and second guide rails and the third and fourth guide rails when the storage object is at the storage completion position. The total value of the gaps between the guide surfaces is 0.6 mm or more, and the distance between the guide surface of each of the second and fourth guide rails at the insertion opening and the second opening reached the insertion opening The connection structure of an object to be accommodated according to claim 1, characterized in that the difference between the distance between the guide surface of each of the first and third guide rails and the distance between the insertion openings is 2 mm or less. .   The connection structure of an object to be accommodated according to claim 1, wherein the inclination angles of all the guide surfaces are set in a range of 3 degrees or more and 15 degrees or less. Containment object,
A storage box for storing the storage target;
A locking mechanism for locking the storage object at a storage completion position of the storage box;
Equipped with
The storage target is an electronic component that is electrically connected to one end of a wire inside the storage box or an electronic component holder that stores and holds the electronic component.
The locking mechanism locks the movement in the removal direction between the storage target and the storage box by locking each other when the storage target is at the storage completion position. And the first and second guides guiding each other along the insertion direction of the storage object into the storage box until the first and second locking bodies reach a position where they can be locked to each other. The second and third guide rails, and the third and fourth guide rails guiding each other along the insertion direction until the first and second locking members reach the lockable positions.
The first and third guide rails are disposed such that the first locking body is interposed therebetween in a direction orthogonal to the insertion direction, and extend in the insertion direction and move toward the insertion direction. Each having a guide surface inclined to the first locking body side,
The second and fourth guide rails are disposed such that the second locking body is interposed therebetween in a direction perpendicular to the insertion direction, and extend in the insertion direction and move toward the insertion direction. Each having a guide surface inclined to the second locking body side,
The guide surfaces of each of the first and second guide rails are formed so as to be disposed to face each other in parallel with each other when the accommodation target is at the accommodation completion position,
The guide surfaces of each of the third and fourth guide rails are formed so as to be disposed opposite to each other in parallel with each other when the accommodation target is at the accommodation completion position,
All the guide surfaces are larger than the draft of the mold in the first and second locking members and the first to fourth guide rails, and the guide operation between the guide rails as a pair is An electrical connection box characterized by being inclined at an inclination angle equal to or less than the possible maximum inclination angle. With the electric wire,
Containment object,
A storage box for receiving the storage target and one end side of the electric wire inside and drawing out the other end side of the electric wire to the outside;
A locking mechanism for locking the storage object at a storage completion position of the storage box;
Equipped with
The storage target is an electronic component that is electrically connected to one end side of the electric wire inside the storage box, or an electronic component holder that stores and holds the electronic component.
The locking mechanism locks the movement in the removal direction between the storage target and the storage box by locking each other when the storage target is at the storage completion position. And the first and second guides guiding each other along the insertion direction of the storage object into the storage box until the first and second locking bodies reach a position where they can be locked to each other. The second and third guide rails, and the third and fourth guide rails guiding each other along the insertion direction until the first and second locking members reach the lockable positions.
The first and third guide rails are disposed such that the first locking body is interposed therebetween in a direction orthogonal to the insertion direction, and extend in the insertion direction and move toward the insertion direction. Each having a guide surface inclined to the first locking body side,
The second and fourth guide rails are disposed such that the second locking body is interposed therebetween in a direction perpendicular to the insertion direction, and extend in the insertion direction and move toward the insertion direction. Each having a guide surface inclined to the second locking body side,
The guide surfaces of each of the first and second guide rails are formed so as to be disposed to face each other in parallel with each other when the accommodation target is at the accommodation completion position,
The guide surfaces of each of the third and fourth guide rails are formed so as to be disposed opposite to each other in parallel with each other when the accommodation target is at the accommodation completion position,
All the guide surfaces are larger than the draft of the mold in the first and second locking members and the first to fourth guide rails, and the guide operation between the guide rails as a pair is A wire harness characterized by being inclined at an inclination angle equal to or less than the possible maximum inclination angle.

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