JP2008301602A - Disassemblable mounting structure of electric connection box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simultaneously disassemble an electric connection box when the electric connection box is mainly removed. <P>SOLUTION: The electric connection box 12 comprises a case body 22 which is arranged so as to abut on a mounting base 11, and can accommodate and hold a circuit board 21, and a lid body 24. The lid body 24 has a locking hole 26 which locks a clip member 14 mounted to a harness 13, and a lid-side mounting piece 27 which can be mounted to the mounting base 11 by another clip member 15, the case body 22 has a body-side mounting piece 28 which can be mounted to the mounting base 11 by still another clip member 16, an outward protrusion 32 is formed at the external side of the case body 22, a case-fixing claw piece 33 is protrusively arranged at the lid body 24, a claw-fixing protrusion 35 which can constrain the retreat of the case-fixing claw piece 33 is protrusively formed at the mounting base 11, a board lower-part supporting part 41 and a board-fixing claw piece 42 are protrusively arranged in the case body 22, and a claw stopper 44 which can regulate the retreat of the board-fixing claw piece 42 is protrusively arranged in the lid body 24. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a dismountable mounting structure for an electrical junction box.

  Many electric junction boxes are attached to vehicles such as automobiles. Some of such electrical junction boxes are attached so that they can be easily removed from the vehicle body (see, for example, Patent Document 1).

  In the detachable mounting structure of the electrical junction box described in this document, as shown in FIGS. 12 and 13, the electrical junction box 2 is disposed with respect to the mounting base portion 1. And the connector part 5 attached to the front-end | tip of several harness 4 is each couple | bonded with the some connector 3 provided in this electrical-connection box 2. As shown in FIG. Furthermore, using the clip members 6 attached to each harness 4, a plurality of attachment pieces 7 provided at both end portions of the electrical connection box 2 are fixed to the locking holes 8 provided in the attachment base portion 1.

  According to such a configuration, the clip member 6 attached to each harness 4 is inserted and locked between the plurality of attachment pieces 7 provided at both ends of the electrical junction box 2 and the attachment base portion 1. Thus, the electrical connection box 2 can be easily and reliably fixed to the mounting base portion 1.

On the contrary, the electrical connection box 2 can be easily removed from the mounting base 1 by pulling each harness 4 and removing the clip member 6 or destroying the clip member 6.
Japanese Patent No. 3707387

  However, in the detachable mounting structure of the electrical junction box described in Patent Document 1, the electrical junction box 2 itself could not be disassembled at the time of detachment from the mounting base 1, so that the removed electrical connection There is a problem that the box 2 needs to be disassembled in a later process, and accordingly, the number of processes increases, and the disassembly work requires time and labor.

  In order to solve the above-mentioned problems, in the invention described in claim 1, an electrical connection box is disposed on the mounting base, and the electrical connection box is pressed by a harness routed along the mounting base. , A separable mounting structure for an electric connection box that is locked and fixed by a plurality of clip members attached to a harness, wherein the electric connection box is disposed in contact with the mounting base and can accommodate and hold a circuit board A main body and a lid that is detachably fitted to an opening provided on the opposite side of the mounting base of the case main body, and the lid is engaged with the clip member at least at an intermediate portion thereof. The lid body is provided with a lid-side mounting piece that can be attached to the mounting base portion by another clip member only at one end portion thereof, and the case main body is provided only at the other end portion. Mounting base by clip member A mounting piece on the main body side that can be attached is provided, and an outward projection having a claw hole is provided on the outer side of the case body, and a claw piece for fixing the case that can be inserted and locked into the claw hole is projected on the lid. A claw piece retreating gap portion is formed between the claw hole portion and the case fixing claw piece so that the case fixing claw piece can be retreated in a direction to release the locked holding state. When inserted into the claw piece retraction gap, a claw fixing projection that can restrain the retraction of the case fixing claw piece protrudes, and the lower part of the substrate that can support the lower part of the circuit board inside the case body A supporting part is provided, and a board fixing claw piece that can hold and hold the upper part of the circuit board is projected inside the case body, and the board fixing claw is provided between the case body and the board fixing claw piece. A space for retraction of the claw piece that can be retreated in the direction in which the piece is released from the locked holding state is formed, and the claw piece retraction is formed inside the lid. By being plugged into the use space, it is characterized in that regulation can claw stopper retraction of the substrate fixing claw is projected.

  According to invention of Claim 1, the following effects can be acquired by the said structure. That is, by removing the electrical junction box from the mounting base, it is possible to disassemble the electrical junction box at the same time. This eliminates the need for a disassembling process, thereby reducing the number of processes and disassembling work, thereby eliminating the time and labor required for the disassembling work.

  Hereinafter, embodiments embodying the present invention will be described together with illustrated examples.

  1 to 10 show an embodiment of the present invention.

  First, the configuration will be described.

  An electric junction box is attached to a vehicle such as an automobile so that it can be easily detached from the vehicle body.

  That is, as shown in FIGS. 1 and 2, the electrical connection box 12 is arranged on the mounting base 11. Then, the electrical connection box 12 is pressed by the harness 13 routed along the mounting base portion 11. Further, the plurality of clip members 14 to 16 attached to the harness 13 are locked and fixed. Note that the mounting base portion 11 can be a vehicle body strength member such as a vehicle body panel or a steering support member. The clip members 14 to 16 have a clip part and a band part integrally, and can be bound to the harness 13 by the band part.

  More specifically, the electrical junction box 12 includes at least a case main body 22 (or a lower case) that is disposed in contact with the mounting base portion 11 and can accommodate and hold the circuit board 21, and the mounting base portion of the case main body 22. 11 is provided with a lid 24 (or an upper case) that is detachably fitted to an opening 23 provided on the side opposite to the opening 11.

  And the cover body 24 is provided with the latching hole 26 with respect to the clip member 14 at the intermediate part at least. Further, the lid body 24 includes a lid-side attachment piece 27 that can be attached to the attachment base portion 11 by another clip member 15 only at one end portion thereof. Further, the case main body 22 includes a main body side mounting piece 28 that can be attached to the mounting base portion 11 by another clip member 16 only at the other end portion. The lid-side attachment piece 27 is for attaching the lid 24 to the attachment base portion 11 alone. The main body side mounting piece 28 is for mounting the case main body 22 on the mounting base portion 11 alone.

  An outer protrusion 32 having a claw hole 31 is provided on the outer side of the case body 22. In addition, a case fixing claw piece 33 that can be inserted and locked into the claw hole 31 is projected from the lid 24. Between the claw hole portion 31 and the case fixing claw piece 33, a claw piece retreating gap portion 34 is formed that can be retreated in a direction in which the case fixing claw piece 33 releases the locked holding state. . Further, the mounting base portion 11 is provided with a nail fixing projection 35 that can be restrained from retreating the case fixing nail piece 33 by being inserted into the nail piece retraction gap 34. Thus, the outer disassembleable attachment structure 36 is configured.

  In this case, the outward projection 32 has a substantially U shape or the like in plan view. The case fixing claw piece 33 extends in a direction substantially perpendicular to the mounting base portion 11 or in a direction in which the lid body 24 is attached to and detached from the case main body 22. The nail fixing projection 35 is a cut and raised piece provided on the mounting base 11. You may make it the nail | claw fixing projection part 35 sharpen the front-end | tip. The case fixing claw piece 33 and the claw fixing projection 35 are provided substantially in parallel.

  Apart from the above, a substrate lower support portion 41 capable of supporting the lower portion of the circuit substrate 21 is provided inside the case body 22. In addition, a board fixing claw piece 42 that can hold and hold the upper side portion of the circuit board 21 protrudes inside the case body 22. A claw piece retreating space 43 is formed between the case body 22 and the substrate fixing claw piece 42 so that the substrate fixing claw piece 42 can be retreated in a direction in which the latch holding state is released. A claw stopper 44 that protrudes into the claw piece retreating space 43 and that can restrict the retraction of the substrate fixing claw piece 42 is provided in a projecting manner. By these, the inner disassembleable attachment structure 46 is configured.

  In this case, the board fixing claw piece 42 and the claw stopper 44 are provided substantially in parallel with the case fixing claw piece 33 and the claw fixing projection 35.

  The outer dismountable attachment structure 36 and the inner dismountable attachment structure 46 are provided at substantially the same position. In this case, these are provided at four locations with respect to the vicinity of each corner portion on both sides of the electrical junction box 12.

  Next, the operation of this embodiment will be described.

  When attaching the electrical junction box 12 to the mounting base 11, the electrical junction box 12 is first assembled as follows.

  The circuit board 21 is housed inside the case body 22, and the lower part of the circuit board 21 is supported by the board lower support part 41, and the upper part of the circuit board 21 is locked by the board fixing claw pieces 42.

  Next, the lid 24 is fitted into the opening 23 provided on the opposite side of the case main body 22 from the mounting base 11.

  At this time, the claw stopper 44 projecting from the inside of the lid 24 is inserted into a claw piece retreating space 43 formed between the case main body 22 and the substrate fixing claw piece 42, thereby fixing the substrate. The retraction of the claw piece 42 is restricted, and the claw piece 42 for fixing the substrate is locked in the locked state. Thereby, the circuit board 21 is reliably held by the case main body 22.

  In addition, a case fixing claw piece 33 projecting from the lid 24 is inserted and locked into a claw hole portion 31 of an outward projection 32 provided on the outer side of the case body 22.

  Thus, the assembled electrical junction box 12 is placed in contact with a predetermined position of the mounting base portion 11.

  At this time, the nail fixing projection 35 projecting from the mounting base 11 is inserted into the nail piece retraction gap 34 formed between the nail hole 31 and the case fixing nail piece 33. Accordingly, the retraction of the case fixing claw piece 33 is restrained, and the case fixing claw piece 33 is locked in the latched holding state. Thereby, the case main body 22 and the cover body 24 are fixed reliably. In addition, the electrical connection box 12 is partly restrained by the mounting base 11.

  Then, the electrical connection box 12 is pressed from above with a harness 13 routed along the mounting base 11.

  At this time, the plurality of clip members 14 to 16 attached to the harness 13 are locked and fixed. That is, the clip member 14 is inserted and locked in the locking hole 26 provided in the intermediate portion of the lid body 24, and the lid side mounting piece 27 provided only in one end portion of the lid body 24 is attached to another clip member 15. The main body side attachment piece 28 provided only on the other end portion of the case main body 22 is attached to the attachment base portion 11 by another clip member 16.

  As described above, as shown in FIGS. 1 and 2, the electrical connection box 12 is securely attached to the mounting base 11.

  On the contrary, when the electrical connection box 12 is removed from the mounting base 11, as shown in FIGS. 3 and 4, one end side of the harness 13 is pulled upward, for example, the lid-side mounting piece 27 is attached. The clip member 14 attached to the attachment base 11 is removed or the clip member 14 is destroyed.

  Then, since the fixed state of the one end part of the electrical connection box 12 and the mounting base part 11 is cancelled | released, the one end part of the electrical connection box 12 will be in the state which floated slightly from the mounting base part 11. FIG.

  If the harness 13 continues to be pulled up as it is, the harness 13 is connected by the locking hole 26 in the middle portion of the lid 24 and the clip member 14, so that the electrical connection box 12 is as shown in FIGS. Then, it is lifted obliquely so as to rotate about the main body side mounting piece 28 at the other end.

  At this time, since the nail fixing projection 35 protruding from the mounting base 11 is pulled out from the nail piece retraction gap 34 formed between the nail hole 31 and the case fixing nail piece 33, The case fixing claw piece 33 can be retracted, and the case fixing claw piece 33 can be released from the locked holding state. Thereby, the fixed state of the case main body 22 and the lid body 24 can also be released.

  Further, if one end side of the harness 13 is continuously pulled upward, the lifting angle of the electrical junction box 12 increases, so that the weight of the case main body 22 and the circuit board 21 with respect to the lid body 24 as shown in FIGS. As a result, the case main body 22 and the lid body 24 are released from the fixed state, and the case main body 22 and the lid body 24 are separated.

  Thus, when the case main body 22 and the lid body 24 are separated, a claw stopper 44 protruding from the inside of the lid body 24 is formed between the case main body 22 and the board fixing claw piece 42. 9 and 10, the board fixing claw piece 42 can be withdrawn, and the board fixing claw piece 42 can be released from the locked state. . Thereby, the locked state of the circuit board 21 by the case body 22 is released, and the circuit board 21 is separated from the case body 22.

  Further, when the harness 13 is pulled upward, finally, the clip member 16 that attaches the main body side attachment piece 28 to the attachment base portion 11 is removed or the clip member 16 is destroyed.

  Then, since the fixed state of the other end part of the electrical connection box 12 and the mounting base part 11 is released, the electrical connection box 12 is completely removed from the mounting base part 11.

  At this time, the circuit board 21 and the case main body 22 are in an independent state with respect to the mounting base 11 and the harness 13, respectively. And since only the lid 24 is connected to the harness 13 by the clip member 14, the clip member 14 is detached or the clip member 14 is destroyed by pulling the lid 24 by hand or the like. The lid 24 is separated from the harness 13.

As described above, the electrical junction box 12 is completely disassembled. In addition, you may make it remove the harness 13 from the main body side attachment piece 28 side.
In the above embodiment, the board fixing claw piece 42 capable of locking and holding the upper part of the circuit board 21 inside the case main body 22 is substantially parallel to the case fixing claw piece 33 and the claw fixing projection 35. The board fixing claw piece 42 is bent (elastically deformed) and engaged when the circuit board 21 is inserted into the case main body 22, but as shown in FIG. When the circuit board 21 is assembled to the case body 22, the circuit board 21 is assembled without bending the board fixing claw piece 42, and then the claw piece is retracted. By inserting the claw stopper 44 on the lid 24 side into the working space 43, the board fixing claw piece 42b may be tilted to the circuit board side and locked in the engaged state.

  As described above, according to this embodiment, the electrical connection box 12 is arranged on the mounting base 11, and the electrical connection box 12 is pressed by the harness 13 routed along the mounting base 11, and the harness 13 The electric connection box can be disassembled and fixed by a plurality of clip members 14 to 16 attached to the electric connection box, and the electric connection box 12 is disposed in contact with the mounting base 11 to accommodate the circuit board 21. A case main body 22 that can be held, and a lid body 24 that is detachably fitted to an opening 23 provided on the opposite side of the mounting base 11 of the case main body 22; In the middle part, it is provided with a locking hole 26 for the clip member 14, and the lid body 24 is provided with a lid side attachment piece 27 that can be attached to the attachment base part 11 by another clip member 15 only at one end part thereof, Case body 22 In addition, a main body side mounting piece 28 that can be attached to the mounting base portion 11 by a further clip member 16 is provided only at the other end portion, and an outer protrusion 32 having a claw hole portion 31 is provided on the outer side portion of the case main body 22. A case fixing claw piece 33 is provided on the lid body 24 and can be inserted and locked into the claw hole portion 31, and between the claw hole portion 31 and the case fixing claw piece 33, the case fixing claw piece is provided. A claw piece retreating gap 34 that can be retreated in a direction in which 33 is released from the locked holding state is formed, and is inserted into the claw piece retreating gap 34 in the mounting base 11, whereby the case fixing claw piece A protrusion 35 for claw fixing that can restrain the retraction of 33 is projected, and a substrate lower support portion 41 that can support a lower portion of the circuit board 21 is provided inside the case body 22, and inside the case body 22, Substrate fixing claw piece capable of locking and holding the upper side of the circuit board 21 2 is formed, and between the case main body 22 and the substrate fixing claw piece 42, a claw piece retreating space 43 is formed that can be retreated in a direction in which the substrate fixing claw piece 42 releases the locked holding state. By inserting the claw piece retreating space 43 into the claw piece retraction space 43 and projecting a claw stopper 44 that can restrict the retraction of the substrate fixing claw piece 42, the following effects are obtained. Obtainable.

  That is, by removing the electrical connection box 12 from the mounting base portion 11, the electrical connection box 12 can be disassembled at the same time. This eliminates the need for a disassembling process, thereby reducing the number of processes and disassembling work, thereby eliminating the time and labor required for the disassembling work.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described.

It is a perspective view of the attachment state of the disassembleable attachment structure of the electrical junction box concerning the Example of this invention. FIG. 3 is a cross-sectional view of FIG. 2. It is a perspective view which shows a removal process. FIG. 4 is a cross-sectional view of FIG. 3. It is a perspective view which shows the removal process following FIG. It is sectional drawing of FIG. It is a perspective view which shows the removal process following FIG. It is sectional drawing of FIG. It is a perspective view which shows the removal process following FIG. FIG. 10 is a cross-sectional view of FIG. 9. It is a modification of this invention. It is a disassembled perspective view of the releasable attachment structure of the electrical junction box concerning a prior art example. It is a sectional side view of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Mounting base part 12 Electric junction box 13 Harness 14 Clip member 15 Clip member 16 Clip member 21 Circuit board 22 Case main body 23 Opening part 24 Lid body 26 Locking hole 27 Lid side attachment piece 28 Main body side attachment piece 31 Claw hole part 32 Outer protrusion 33 Case fixing claw 34 Claw piece retraction gap 35 Claw fixing protrusion 41 Substrate lower support part 42 Substrate fixing claw 43 Claw piece retraction space 44 Claw stopper

Claims (1)

An electrical junction box is disposed on the mounting base, and the electrical junction box is held by a harness routed along the mounting base and is secured by a plurality of clip members attached to the harness. The dismountable mounting structure of
The electrical connection box is detachably fitted to the case body, which is placed in contact with the mounting base and can accommodate and hold the circuit board, and the opening provided on the opposite side of the case main body from the mounting base. And a lid to be
The lid includes a locking hole for the clip member at least in the middle thereof, and the lid includes a lid-side mounting piece that can be attached to the mounting base portion by another clip member only at one end thereof. The case main body includes a main body side mounting piece that can be attached to the mounting base portion by another clip member only at the other end portion,
An outer protrusion having a claw hole is provided on the outer side of the case body, and a case fixing claw piece that can be inserted and locked into the claw hole is protruded from the lid so that the claw hole and the case are fixed. A claw piece retraction gap is formed between the claw pieces that can be retreated in a direction in which the case fixing claw pieces release the locked holding state, and is inserted into the claw piece retraction gap in the mounting base. Accordingly, a projection for fixing the claw that can restrain the retraction of the claw piece for fixing the case is projected,
A board lower support part capable of supporting the lower part of the circuit board is provided inside the case body, and a board fixing claw piece capable of locking and holding the upper part of the circuit board is protruded from the case body. A claw piece retraction space is formed between the main body and the substrate fixing claw piece so that the substrate fixing claw piece can be retreated in a direction to release the locked holding state. An electric connection box dismountable mounting structure, wherein a claw stopper capable of restricting the retraction of the board fixing claw piece by being inserted into is provided.

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