JP5758170B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electric junction box mounted on a motorcycle as a moving body.

  In general, a motorcycle as a moving body is equipped with various electronic devices such as lamps such as a head lamp and a tail lamp, a starter motor, and the like.

  In order to supply electric power to the various electronic devices described above, the motorcycle has arranged junction blocks at appropriate locations. The junction block is composed of various electric circuit units such as a large number of fuses and relays.

  Note that the junction block may include a fuse, a relay, a bus bar, and the like, and thus is also referred to as a fuse block, a relay box, or an electrical connection box. In the present specification, the above-described fuse block, relay box, and junction block are collectively referred to as an electric junction box (for example, refer to Patent Document 1).

  The electrical junction box disclosed in Patent Document 1 and the like includes a box body, a plurality of bus bars housed in the box body, and an upper cover and a lower cover that house the box body. The box body includes a plurality of blocks each made of an insulating synthetic resin and attached to each other.

  The block has electric parts such as fuses and relays attached to the upper surface thereof, and terminals of a plurality of electric wires of the wire harness attached to the lower surface thereof. The bus bar is provided in the block, and electrically connects each electric wire of the above-described wire harness and the above-described electric component according to a predetermined pattern.

  The upper cover and the lower cover are attached to each other and accommodate the aforementioned box body inside.

  In the electrical junction box described above, power from the power source is supplied by a power cable, this power is branched by a bus bar, etc., passed through the fuses and relays described above, and then supplied to various electronic devices via the wires of the wire harness. Supply.

JP-A-8-279686

  The electrical junction box mounted on the motorcycle described above is required to be smaller. However, the electrical junction box disclosed in Patent Document 1 is increased in size to accommodate the box body in the upper cover and the lower cover. Therefore, it has been proposed to directly attach an upper cover to a plurality of blocks assembled to each other to reduce the size of the electrical junction box. However, in this case, it is necessary to provide an engaging part for attaching the upper cover to the block, and the box main body is enlarged by the engaging part.

  Accordingly, an object of the present invention is to provide an electrical junction box that can suppress an increase in size of the box body even when a plurality of blocks are assembled to form a box body.

In order to solve the above-mentioned problems and achieve the object, the electrical junction box according to claim 1 comprises a box body to which electrical components are attached on an upper surface, and the box body in a state of covering the upper surface of the box body. in the electrical connection box having an upper cover attached, to, the box body is provided with a plurality of blocks to be assembled together, the one end of the block, respectively, the first engagement portion is provided, wherein an end portion of the block each other, the second engaging portion is provided, the first engagement portion is an engagement frame section for locking the upper cover, the second engagement portion Is a protrusion-like hook for hooking the upper cover, and the other end of each of the blocks accommodates the engagement frame at a position overlapping the electrical component. housing recess is provided for positioning It is characterized in Rukoto.

  An electrical junction box according to a second aspect of the present invention is the electrical junction box according to the first aspect, wherein the plurality of blocks are formed in the same shape.

  According to the electrical junction box of the present invention as set forth in claim 1, the housing recess for housing the first engagement portion in the plurality of blocks constituting the box body and positioning the first engagement portion at a position overlapping the electrical component. Is provided. For this reason, the length of the box body constituted by assembling a plurality of blocks is not increased by the amount of the first engaging portion.

  According to the electrical connection box of the present invention described in claim 2, since the plurality of blocks are formed in the same shape, it is possible to prevent an increase in the types of parts constituting the electrical connection box.

  As described above, the present invention according to claim 1 is such that the box body formed by assembling a plurality of blocks does not increase in length by the amount of the first engaging portion. Increase in size can be suppressed. Therefore, even if a plurality of blocks are assembled together to form a box body, an increase in the size of the box body can be suppressed.

  According to the second aspect of the present invention, it is possible to prevent an increase in the types of parts constituting the electrical junction box.

It is a perspective view of the electrical junction box concerning one embodiment of the present invention. It is a perspective view which decomposes | disassembles and shows the box main body of the electrical-connection box shown by FIG. It is the perspective view seen from the other direction of the electrical junction box shown by FIG. FIG. 4 is a perspective view of a box body of the electrical junction box shown in FIG. 3. It is a top view of the block of the box main body of the electrical junction box shown by FIG. It is the side view seen from the arrow IV direction in FIG. It is the side view seen from the arrow V direction in FIG. It is sectional drawing which follows the VI-VI line in FIG. It is sectional drawing which follows the VII-VII line in FIG. FIG. 2 is a side view of a motorcycle including the electric junction box shown in FIG. 1.

  Hereinafter, an electrical junction box according to an embodiment of the present invention will be described with reference to FIGS. The electrical junction box 1 shown in FIG. 1 according to the present embodiment is mounted on a motorcycle 2 (shown in FIG. 10) as a moving body. As shown in FIG. 10, the electrical junction box 1 is accommodated adjacent to the battery 5 in a battery box 4 disposed on the front side of the dummy tank-type storage box 3 of the motorcycle 2.

  As shown in FIGS. 1, 2, and 3, the electrical junction box 1 includes a box body 6 and an upper cover 7. In the present embodiment, the direction in which the box body 6 and the upper cover 7 overlap each other is referred to as the thickness direction Z, intersects the thickness direction Z (orthogonal in the illustrated example), and the direction in which the blocks 8 described later are arranged. The longitudinal direction Y is referred to as the width direction X and the direction intersecting (orthogonal in the illustrated example) with respect to both the thickness direction Z and the longitudinal direction Y is referred to as the width direction X.

  The box body 6 includes a plurality of blocks 8 that are pumped together and a bus bar (not shown). In the illustrated example, the box body 6 includes two blocks 8, and these two blocks 8 are formed in the same shape.

  The block 8 is made of an insulating synthetic resin and has a box shape. As shown in FIGS. 4 to 8, the block 8 includes a box-shaped block main body 9, a connecting portion 10, a cover fixing portion 11, and an accommodating recess 12.

  The block body 9 is formed in a box shape, and a fuse 13 or a relay 14 as an electrical component is mounted on a surface 9a (hereinafter referred to as an upper surface) located on the upper side in FIGS. A mounting portion 15 is provided, and a connector mounting portion on which a wire harness connector is mounted is provided on a lower surface 9b (hereinafter referred to as a lower surface) in FIG. 4, FIG. 6 and FIG.

  The connecting portion 10 includes a connecting engagement portion 19 and a guide groove portion 20 provided at one end portion 17 (corresponding to one end portion of the block 8) of the block main body 9, and the other end portion 18 ( A connection engagement receiving portion 21 and a guide projection 22 provided on the other end of the block 8. The connection engaging portion 19 is formed in a protruding shape protruding from the center of the end surface 17 a of the one end portion 17 of the block body 9 of the block 8. The guide groove portions 20 are provided at both ends in the width direction X of the end surface 17a. The guide groove portion 20 includes a pair of ridge walls 23 that are convex from the surface of the end surface 17a and that are spaced apart from each other in the width direction X and extend linearly along the thickness direction Z. .

  The connection engagement receiving portion 21 is formed in a flexible arm shape having one end connected to the center of the end surface 18 a of the other end portion 18 of the block main body 9 of the block 8. The guide protrusions 22 are provided at both ends in the width direction X of the end face 18a. The guide protrusion 22 is convex from the surface of the end face 18a and extends linearly along the thickness direction Z.

  The connecting portion 10 having the above-described configuration guides the blocks 8 to each other along the thickness direction Z by passing the guide protrusion 22 between the pair of protruding strip walls 23 of the guide groove portion 20, and the connecting engaging portion. 19 engages with the coupling engagement receiving portion 21 to couple the blocks 8 in series.

  As shown in FIGS. 5 and 8, the cover fixing portion 11 includes a hook portion 24 as a second engagement portion and an engagement frame portion 25 as a first engagement portion. The hook portion 24 includes a pair of hook protrusions 26 that protrude from the end surface 18 a of the other end portion 18 of the block body 9. The pair of hooking protrusions 26 are provided at locations near the upper surface 9 a of the end surface 18 a of the other end portion 18 of the block main body 9, and are provided at intervals in the width direction X.

  The engagement frame portion 25 is formed in a frame shape in which both ends are connected to the end surface 17 a of the one end portion 17 of the block main body 9. The engagement frame portion 25 is provided at a location near the upper surface 9 a of the end surface 17 a of the one end portion 17 of the block body 9 and in the center in the width direction X.

  The housing recess 12 is formed to be recessed from both the end surface 18a and the upper surface 9a of the other end 18 of the block body 9, and is provided at the center in the width direction X of the end surface 18a. As shown in FIG. 9, the housing recess 12 houses the engagement frame portion 25 inside when the blocks 8 are connected in series by the connecting portion 10. Further, as shown in FIG. 9, the housing recess 12 is provided with a relay 14 as an electrical component that is mounted on the mounting portion 15 closest to the end surface 18 a of the other end portion 18 on the engagement frame portion 25 housed inside. It is provided at the overlapping position. That is, the housing recess 12 positions the engagement frame portion 25 of the block body 9 of the block 8 at a position overlapping the relay 14.

  The bus bar is made of a conductive sheet metal and is accommodated in the block body 9. The bus bar electrically connects the fuse 13 and the relay 14 attached to the attachment portion 15 and the connector of the wire harness attached to the connector attachment portion according to a predetermined pattern.

  The box body 6 having the above-described configuration is assembled by connecting the blocks 8 in series by the connecting portion 10. In the box body 6, the fuse 13 and the relay 14 are attached to the attachment portion 15, and the connector of the wire harness is attached to the connector attachment portion. The box body 6 electrically connects the fuse 13 and the relay 14 attached to the attachment portion 15 and the connector of the wire harness attached to the connector attachment portion according to a predetermined pattern.

  The upper cover 7 is made of an insulating synthetic resin and is formed by a known injection molding. The upper cover 4 includes a flat ceiling wall 27 and four peripheral walls 28 erected from each outer edge of the ceiling wall 27. An engaging claw 29 is provided at one end portion in the longitudinal direction Y of the upper cover 7, and a catching portion 30 is provided at the other end portion in the longitudinal direction Y of the upper cover 7. The engaging claw 29 is formed in a claw shape protruding from the edge of the peripheral wall 28 of the upper cover 7 toward the box body 6. The engaging claw 29 enters the engaging frame portion 25 and is locked to the engaging frame portion 25. The hook portion 30 is formed in a flat plate shape that protrudes from the edge of the peripheral wall 28 of the upper cover 7 toward the box body 6 and is provided with an intrusion receiving hole 31 into which the hook protrusion 26 enters.

  The upper cover 7 having the above-described configuration causes the hook protrusion 26 to enter the intrusion receiving hole 31 of the hook portion 30 and hook the hook protrusion 26. Then, the upper cover 7 is rotated around the intrusion receiving hole 31 so that the engaging claw 29 approaches the engaging frame portion 25 and is brought close to the box body 6. The upper cover 7 is attached to the box body 6 in a state where the upper surface 9 a of the box body 6 is covered by the engagement claw 29 entering the engagement frame part 25 and being locked to the engagement frame part 25. It is attached.

  The electrical junction box 1 configured as described above is accommodated in the battery box 4 adjacent to the battery 5 and attached to the motorcycle 2.

  According to the present embodiment, the housing recess 12 for housing the engaging frame portion 25 in the plurality of blocks 8 constituting the box body 6 and positioning the engaging frame portion 25 at a position overlapping the relay 14 is provided. For this reason, the length of the box body 6 configured by assembling the plurality of blocks 8 to each other does not increase by the amount of the engagement frame portion 25. Therefore, an increase in the size of the box body 6 can be suppressed. Therefore, even if a plurality of blocks 8 are assembled to form the box body 6, an increase in the size of the box body 6 can be suppressed.

  In addition, since the plurality of blocks 8 are formed in the same shape as each other, it is possible to prevent an increase in the types of parts constituting the electrical junction box 1.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Electrical junction box 6 Box main body 7 Upper cover 8 Block 9a Upper surface 12 Housing recessed part 13 Fuse (electrical part)
14 Relay (electrical parts)
17 One end 18 Other end 24 Hook (second engaging portion)
25 Engagement frame portion (first engagement portion)

Claims (2)

A box body on which electrical components are mounted on the upper surface;
In the electrical junction box and a upper cover attached to the box body while covering the upper surface of the box the body,
The box body is
It has a plurality of blocks that can be assembled together,
It said block at one end of the respective first engaging portion is provided,
It said block to the end of the respective other, second engagement portion is provided,
The first engagement portion is an engagement frame portion for locking the upper cover,
The second engaging portion is a protruding hook for hooking the upper cover,
Wherein the other end of the block respectively, an electrical connection box, characterized in that the housing recess to position the engaging frame portion accommodates the engagement frame section at a position overlapping the electrical component is provided .   The electrical connection box according to claim 1, wherein the plurality of blocks are formed in the same shape.

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