JP2015192588A - Electric connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric connection box able to achieve, for example, improvement in workability and prevention of half-fitting.SOLUTION: An electric connection box 1 comprises an electric connection box body 6 and fixing leg parts 7, 8. The electric connection box body 6 has an electric wire terminal fitting part 13 on the underside thereof. The electric terminal fitting part 13 is formed as a portion into which the electric terminal is inserted and fitted. The electric wire terminal fitting part 13 is formed so as to be arranged in a position opposite a place to which a vehicle is fixed. The fixing leg parts 7, 8 are formed as portions for fixing the electric connection box 1 to the place to which the vehicle is fixed. The fixing leg parts 7, 8 have a form projecting toward the place to which the vehicle is fixed, beyond the place where the electric wire terminal fitting part 13, from the electric connection box body 6. The fixing leg part 8 among them is formed integrally with a side face of the electric connection box body 6 with a hinge 16. The fixing leg part 8 integrated with the hinge 16 is formed on a portion freely rotated with respect to the electric connection box body 6. The rotation shaft of the hinge 16 is set along the direction of vehicle vibration.

Description

  The present invention relates to an electrical junction box mounted on a vehicle.

  As an electric device mounted on a vehicle such as an automobile, for example, an electric junction box can be cited. The electric junction box is known as a generic term for a relay box, a fuse box, a junction block, an electronic control unit box, or the like. Patent Document 1 below discloses a technique related to an electrical junction box. Hereinafter, a brief description will be given with reference to the drawings.

  In FIG. 7, the electrical junction box 101 includes an electrical junction box main body 102, a cover 103 that covers the upper surface side of the electrical junction box main body 102, and a plurality of fixed legs 104. The electrical junction box 101 is fixed to the vehicle body 106 using bolts 105. The electrical junction box main body 102 has a rectangular and box-shaped resin portion 107. A fixed leg 104 is coupled to the resin portion 107. The fixed leg portion 104 is formed to be continuous with the lower side of the side surface of the resin portion 107 and in the vicinity of the four corners. The fixed leg portion 104 is formed in an L-shaped leg shape so that the electrical junction box main body 102 can be arranged at a predetermined interval from the body 106. Note that the above-described interval is provided to pull in the wire harness 108.

  The wire harness 108 is formed by bundling a plurality of electric wires 109. A terminal (not shown) is provided at the end of each electric wire 109. The terminal is inserted into the inside via a wire terminal assembly portion (not shown) on the lower side of the resin portion 107. The electric wire terminal assembly portion is disposed and formed so as to face the body 106. The terminal inserted into the resin portion 107 is held at a predetermined position. The terminal is electrically connected to the relay 110 and the fuse 111 mounted from above the resin portion 107 after being held inside the resin portion 107.

Japanese Patent Laid-Open No. 200-36678

  In the above prior art, the terminal of the end of the electric wire 109 is inserted into the inside through the electric wire end assembly portion on the lower side of the resin portion 107. Therefore, if the fixed leg 104 gets in the way, it leads to a problem that workability deteriorates. Hereinafter, with reference to FIG. 8 and FIG. 9, a structure that deteriorates workability will be described in more detail. 8 is a perspective view of the electrical junction box as viewed from below (from the body side), and FIG. 9 is a side view of the electrical junction box of FIG.

  8 and 9, the electrical junction box 112 includes an electrical junction box main body 113 and fixed leg portions 114 and 115 integrated with the electrical junction box main body 113. The electrical junction box main body 113 has a rectangular and box-shaped resin portion 116, and fixed leg portions 114 and 115 are integrally formed on both the left and right side surfaces of the resin portion 116. The fixed legs 114 and 115 are formed in a leg shape so that the electrical junction box main body 113 can be arranged at a predetermined interval from the body. The fixed leg portions 114 and 115 are integrally molded with the resin portion 116.

  A locking portion 117 is formed at the tip of the fixed leg 114 to be hooked and locked in the locking hole of the body. In addition, a bolt insertion hole 118 for inserting a stud bolt of the body is formed at the tip of the fixed leg 115. The fixed legs 114 and 115 are formed to have a relatively large structure to support the electrical junction box main body 113. The fixed leg portions 114 and 115 are formed so as to protrude to the body side beyond the electric wire terminal assembly portion 119 disposed on the lower side of the resin portion 116.

  A plurality of terminal insertion portions 120 are formed in the wire terminal assembly portion 119. The terminal insertion part 120 is formed as a part for starting insertion of a terminal provided at a terminal of an electric wire (not shown) into the terminal accommodating part. The terminal accommodating portion is formed so as to extend toward the upper side of the resin portion 116. When a fuse or the like is attached from the upper side of the resin portion 116 in a state where the terminal is accommodated and held in the terminal accommodating portion, the fuse is electrically connected to the terminal.

  In the above configuration and structure, since the fixed leg portions 114 and 115 are relatively large structures, the fixed leg portions 114 and 115 become an obstacle when the terminal of the electric wire terminal is inserted into the terminal insertion portion 120, so that the worker If the hand hits, the insertion work will not proceed smoothly. Therefore, if the fixed leg portions 114 and 115 protruding to the body side beyond the formation position of the wire terminal assembly portion 119 are present as a relatively large structure, there is a problem that workability is deteriorated. In addition, when the operator's hand hits the fixed leg portions 114 and 115, there is a possibility that the insertion of the terminal may be halfway, so that there is a problem that half-fitting (holding failure) occurs.

  As a countermeasure for the above problem, it is conceivable that the fixing leg portions 114 and 115 are made separate from the resin portion 116 and integrated with the side surface of the resin portion 116 after inserting the terminals. Another problem arises that it will interfere with parts management and the like.

  This invention is made | formed in view of an above-described situation, and makes it a subject to provide the electrical connection box which can aim at the improvement of workability | operativity, prevention of a half fitting, etc.

  The present invention according to claim 1, which has been made to solve the above-mentioned problems, is a wire terminal assembly part formed as a part for inserting and assembling a terminal of a wire terminal and / or a part for assembling a connector of a wire terminal. An electrical junction box comprising: a box body arranged at a position facing the vehicle fixing point; and a structure part projecting from the box body beyond the formation position of the wire terminal assembling part to the vehicle fixing point side The electrical connection box has a hinge and a lock part, and the hinge is formed as a part that integrally integrates the structure part with the box body, and the lock part is formed by the hinge. The structure portion is formed as a portion that locks the structure portion with respect to the box body when the structure portion is rotated and disposed at a position protruding toward the vehicle fixing point. Rotation axis by is characterized in that it is configured such that along the vehicle vibration direction.

  According to a second aspect of the present invention, in the electrical junction box according to the first aspect, the structure body portion is at least one of a plurality of fixed leg portions for fixing the electrical junction box to the vehicle fixing point. It is formed as one.

  According to the first aspect of the present invention, when inserting and assembling the terminal of the electric wire terminal into the electric wire terminal assembling part and / or when assembling the connector of the electric wire terminal to the electric wire terminal assembling part, If the structure part is not protruding beyond the position where the terminal assembly part is formed, the operator's hand will not hit the structure part, and it will not feel disturbed. There is an effect that the work can be performed smoothly. That is, there is an effect that workability can be improved. Further, according to the present invention, since the operator's hand does not hit the structure as described above, the assembly of the terminal insertion and the like is not in the middle, and as a result, the half-fitting can be prevented. There is an effect that can be done. In addition, according to the present invention, since the box main body and the structure body are integrated with the hinge, the cost and parts management surface can be improved as compared with the case of separate parts. There is an effect. Further, according to the present invention, since the rotation axis by the hinge is set along the vehicle vibration direction, the hinge and the lock portion can be formed in a direction in which the vibration of the vehicle is not directly applied, resulting in strength. There is an effect that can be secured.

  According to the present invention described in claim 2, in addition to the effect of claim 1, the following effect is further exhibited. In other words, it is an electrical connection box having a fixed leg part so that the box body is arranged at a predetermined interval from the vehicle fixing point, and if the fixed leg part is rotated by a hinge, the work can be smoothly performed. There is an effect that can be done.

It is a perspective view which shows the state which fixed the electric junction box of this invention to the vehicle fixing point. It is a perspective view which shows the state which looked at the electrical junction box of FIG. 1 from the vehicle fixing point side. It is a perspective view which shows the state before fixing a fixed leg part with respect to the electrical-connection box main body of the electrical-connection box of FIG. It is a perspective view which shows the electric junction box of FIG. 1 in the state which changed direction. It is a side view of the electrical connection box which shows the state at the time of assembling by inserting the terminal of an electric wire terminal into an electric wire terminal assembly part. It is a side view of the electrical junction box which shows the state after the assembly | attachment of FIG. It is a disassembled perspective view of the electrical junction box of a prior art example. It is a figure for demonstrating a problem, and is a perspective view which shows the state which looked at the electrical junction box from the body side. It is a side view of the electrical junction box of FIG.

  The electrical junction box is configured to include a box body and a structure part. The box body has an electric wire terminal assembly on the lower side. An electric wire terminal assembly part is formed as a part which inserts and assembles the terminal of an electric wire terminal inside. The electric wire terminal assembly portion is disposed and formed at a position facing the vehicle fixing point. The structure body portion is formed as a fixed leg portion for fixing the electric junction box to the vehicle fixing point. The structure body portion is formed in a shape that protrudes from the box body to the vehicle fixing destination side beyond the position where the electric wire terminal assembly portion is formed. Moreover, a structure part is formed so that it may integrate with the side surface of a box main body via a hinge. The structure part integrated by the hinge is formed in a part that is rotatable with respect to the box body. Therefore, when inserting the terminal of an electric wire terminal inside, it becomes possible to retract | save a structure part to the position which does not become obstructive. After the insertion of the terminal, when the structure portion is rotated, the box body is locked. As a result, the electric junction box can be fixed to the vehicle fixing point. As for the hinge, it is preferable that the rotation axis is set along the vehicle vibration direction.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is a perspective view showing a state in which the electrical junction box of the present invention is fixed to a vehicle fixing point. 2 is a perspective view showing a state where the electric junction box of FIG. 1 is viewed from the vehicle fixing point side, and FIG. 3 is a state before the fixing leg portion is fixed to the electric junction box body of the electric junction box of FIG. FIG. 4 is a perspective view showing the electrical junction box of FIG.

  In FIG. 1, reference numeral 1 indicates an electrical junction box according to the present invention. The electrical junction box 1 is fixed to the vehicle body 3 (vehicle fixing destination) with the wire harness 2 retracted. Specifically, it is hooked and locked in the locking hole of the body 3, and is fixed by tightening the stud bolt 4 and the nut 5 standing on the body 3 (the fixing direction is an example). The electrical junction box 1 of the present embodiment is a fuse box mounted in a cabin, although not particularly limited. A plurality of fuses and relays (not shown) are attached to the electrical connection box 1. The present invention is directed to the electrical junction box 1 in which the wire harness 2 is drawn between the body 3 and the body 3.

  1 and 2, the electrical junction box 1 includes an electrical junction box main body 6 (box main body), a fixed leg portion 7 that is integrated with the electrical junction box main body 6 in a stationary state, and an electrical junction box main body 6. On the other hand, it is configured to include a fixed leg portion 8 (structure body portion) that is rotatably integrated.

  The electrical junction box main body 6 includes a rectangular box-shaped resin portion 9 and a plurality of terminals (not shown) accommodated and held inside the resin portion 9. The plurality of terminals are provided at the terminals of the plurality of electric wires constituting the wire harness 2. The plurality of terminals are formed by pressing a conductive metal plate. A well-known thing is employ | adopted for a some terminal. The plurality of terminals are inserted from the opposite side of the mounting direction of a plurality of fuses and relays (not shown), and are accommodated and held inside the resin portion 9.

  The resin part 9 is formed, for example, in the illustrated shape by resin molding (the shape is an example). The resin portion 9 is resin-molded by integrating the fixed leg portions 7 and 8 together. Here, if the arrow P is the up-down direction, the arrow Q is the left-right direction, and the arrow R is the front-rear direction (direction is an example), the resin portion 9 has a plurality of fuse mounting portions 10 and relay mounting portions 11 on the upper surface side. . Since the plurality of fuse mounting portions 10 and the relay mounting portions 11 are provided, the upper surface side of the resin portion 9 is formed as an electrical component mounting portion 12.

  On the opposite side of the electrical component mounting portion 12, a wire terminal assembly portion 13 is formed. The electric wire terminal assembly portion 13 is formed as a portion that is assembled by inserting the terminal of the electric wire terminal into the resin portion 9. A plurality of terminal insertion portions 14 are formed in the wire terminal assembly portion 13. The terminal insertion part 14 is formed as a part which starts insertion of the terminal provided in the electric wire terminal into a terminal accommodating part (not shown). The terminal accommodating portion is formed to extend toward the electrical component mounting portion 12. When a fuse or the like is attached from the upper side of the resin portion 9 in a state where the terminal is accommodated and held in the terminal accommodating portion, the fuse is electrically connected to the terminal.

  1 to 4, the fixed leg portion 8 is integrally formed on the left side surface 15 of the resin portion 9 via a hinge 16. In addition, the fixed leg portion 7 is integrally formed on the right side surface 17 of the resin portion 9. Furthermore, a pair of main body side lock portions 20 (lock portions) for locking the fixed leg portion 8 is formed on the front surface 18 and the rear surface 19 of the resin portion 9. The pair of main body side lock portions 20 is formed as a portion for hooking and locking a pair of fixed leg side lock portions 22 described later of the fixed leg portion 8. In the present embodiment, it is formed in a bridge-shaped portion so that the locking protrusion 24 of the fixed leg side lock portion 22 can be passed, and the locking protrusion 24 can be hooked and locked. The

  As will be understood later with reference to FIGS. 5 and 6, the pair of main body side lock portions 20 are arranged and formed on the rotation locus of the fixed leg side lock portion 22. The illustrated shapes of the main body side lock unit 20 and the fixed leg side lock unit 22 are only examples (it is only necessary to be able to be in a locked state). For example, the main body side lock unit 20 is formed on the fixed leg unit 8, and the fixed leg side lock unit 22 may be formed in the resin portion 9.

  In addition to the function of hooking and locking the main body side lock portion 20 in the bridge shape as described above, the fixed leg side lock portion 22 to be described later has an arrow P direction (vertical direction) and an arrow R direction (front and rear). It also has a function of restricting movement in the direction). Therefore, when the fixed leg side lock part 22 is locked to the main body side lock part 20 and the locked state of the fixed leg part 8 and the resin part 9 is formed, the fixed leg part 8 does not move to the resin part 9 from the beginning. It becomes as if it was integrated into the state.

  The hinge 16 is a thin part having sufficient flexibility, and is formed so as to be continuous with the left side surface 15 of the resin part 9. The hinge 16 is arranged and formed so that the rotation axis thereby extends along the vehicle vibration direction (in other words, the hinge 16 is arranged and formed so that the extending direction of the hinge 16 is the same as the vehicle vibration direction). ) In this embodiment, the vehicle vibration direction is set to coincide with the front-rear direction of the arrow R. The hinge 16 is formed with a length corresponding to the width of the fixed leg portion 8. The hinge 16 is formed as a portion that allows the fixed leg portion 8 to be continuously rotatable. The hinge 16 is formed so that the fixed leg portion 8 can be brought into surface contact with the left side surface 15 of the resin portion 9.

  The fixed legs 7 and 8 are formed as a structure in which the electrical junction box main body 6 is arranged at a predetermined interval from the body 3. The fixed legs 7 and 8 are formed as a structure that supports the electrical junction box body 6. The fixed leg parts 7 and 8 are formed in the shape which protrudes in the body 3 side beyond the formation position of the electric wire terminal assembly part 13. FIG. First, the fixed leg portion 8 continuing from the hinge 16 will be described.

  The fixed leg portion 8 is formed in a substantially columnar shape. The fixed leg portion 8 is formed such that the base end portion is continuous with the hinge 16. At the distal end of the fixed leg portion 8, a locking portion 21 that is hooked and locked in a locking hole (not shown) of the body 3 is formed. A fixed leg side lock portion 22 (lock portion) is formed on each of the pair of side portions of the fixed leg portion 8. The pair of fixed leg side lock portions 22 are formed in a piece-like locking portion. That is, it is formed in a piece-like locking portion having a piece-like portion 23 and a locking protrusion 24 protruding from the tapered portion of the piece upper portion 23. The pair of fixed leg side lock portions 22 is disposed and formed at a position close to the base end portion of the fixed leg portion 8 (arranged and formed at a position close to the hinge 16; an example).

  Since the fixed leg portion 8 is rotatable by the hinge 16, the pair of fixed leg side lock portions 22 are inserted and locked into the main body side lock portion 20 of the resin portion 9 while drawing a rotation locus.

  Next, the fixed leg portion 7 will be described. The fixed leg portion 7 includes a first wall portion 25 that is parallel to the right side surface 17, a second wall portion 26 that is perpendicular to the first wall portion 25, and a third wall portion that is disposed at the distal end position of the fixed leg portion 7. 27 and is integrally formed on the right side surface 17 of the resin portion 9 so as to be stationary. Note that the fixed leg portion 7 is not fixed and may adopt a rotatable structure similar to the fixed leg portion 8.

  The third wall portion 27 is formed with a bolt insertion hole 28 through which the stud bolt 4 standing on the body 3 is inserted. Such a lower surface of the third wall portion 27 is formed flat as a surface to be placed on the body 3. Further, the upper surface is formed flat as a seating surface of the nut 5 and the washer 29. In the state where the locking portion 21 of the fixed leg portion 8 is locked in the locking hole (not shown) of the body 3, it is needless to say that the periphery of the electrical connection box 1 is restricted even if the nut 5 is tightened. is there.

  The operation | work which inserts the terminal of an electric wire terminal into the electric wire terminal assembly part 13 in the said structure and structure is demonstrated referring FIG.5 and FIG.6. 5 and 6 are side views of the electrical junction box 1 before and after inserting the terminal as seen from the rear surface 19 side of the resin portion 9.

  In FIG. 5, when inserting and assembling the terminal of the electric wire terminal into the electric wire terminal assembling portion 13, the fixed leg portion 8 is first retracted to a position that does not interfere with the operator. By this evacuation, the formation position of the electric wire terminal assembly portion 13 becomes flat, so that the operator's hand does not hit the fixed leg portion 8 and is not disturbed, resulting in a smooth operation. Can do. With the above configuration and structure, workability can be improved. Further, since the operator's hand does not hit the fixed leg portion 8 by retracting the fixed leg portion 8, the assembly such as terminal insertion is not in the middle, and as a result, the half-fitting is prevented. be able to.

  In FIG. 6, when the fixed leg portion 8 is rotated after the terminal assembly is completed, the fixed leg portion 8 is locked with respect to the electrical junction box body 6. As a result, the electrical junction box 1 is ready to be fixed to the body 3.

  As described above with reference to FIGS. 1 to 6, according to the electrical junction box 1, the hinge 16, the main body side lock portion 20, and the fixed leg side lock portion 22 are included. Compared to the structure of 9, it is possible to improve workability and prevent half-fitting.

  Further, according to the electrical junction box 1, the hinge 16, the main body side lock portion 20, and the fixed leg side lock portion 22 are formed in a direction in which the vibration of the vehicle is not directly applied. There is an effect that it can be secured.

  It goes without saying that the present invention can be variously modified without departing from the spirit of the present invention.

  In addition, in the said description, although the electric wire terminal assembly part 13 was formed as a part assembled by inserting the terminal of an electric wire terminal inside, it may be formed not only as this but as a part which assembles the connector of an electric wire terminal. To do.

  DESCRIPTION OF SYMBOLS 1 ... Electrical junction box, 2 ... Wire harness, 3 ... Body (vehicle fixing point), 4 ... Stud bolt, 5 ... Nut, 6 ... Electrical junction box main body (box main body), 7 ... Fixed leg part, 8 ... Fixed leg Part (structure part), 9 ... resin part, 10 ... fuse mounting part, 11 ... relay mounting part, 12 ... electric part mounting part, 13 ... wire terminal assembly part, 14 ... terminal insertion part, 15 ... left side surface, 16 ... Hinges, 17 ... Right side, 18 ... Front side, 19 ... Rear side, 20 ... Main body side locking part (locking part), 21 ... Locking part, 22 ... Fixed leg side locking part (locking part), 23 ... One piece part 24 ... Locking protrusion, 25 ... First wall part, 26 ... Second wall part, 27 ... Third wall part, 28 ... Bolt insertion hole, 29 ... Washer

Claims (2)

A box body in which a terminal of an electric wire terminal is inserted and assembled, and / or an electric wire terminal assembling part formed as a part of assembling a connector of an electric wire terminal is disposed at a position facing the vehicle fixing point;
In an electrical junction box comprising: a structure portion projecting from the box body to the vehicle fixing destination side beyond the formation position of the wire terminal assembly portion;
The electrical junction box has a hinge and a lock part,
The hinge is formed as a part that integrally integrates the structure portion with the box body,
The lock part is formed as a part that locks the structure part with respect to the box body when the structure part is rotationally moved by the hinge and arranged at a position protruding to the vehicle fixing destination side.
Furthermore, the rotating shaft by the said hinge is set along a vehicle vibration direction. The electrical junction box characterized by the above-mentioned. The electrical junction box according to claim 1,
The structure part is formed as at least one of a plurality of fixed legs for fixing the electric junction box to the vehicle fixing point.

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