JP5758171B2 - 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 electrical connection box.

  A conventional electrical junction box 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 plurality of blocks are formed in different shapes because different electrical components are required depending on the number and type of electronic devices and the like employed in the mounted motorcycle. 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 above-described electric junction box mounted on a motorcycle is dedicated because the number and type of electrical components differ depending on the type of motorcycle, and thus the cost tends to increase individually. In addition, in an electric connection box for a motorcycle that is required to be smaller, a box that houses the box body in the upper cover and the lower cover is enlarged and has a low degree of freedom in mounting. Become.

  Accordingly, an object of the present invention is to provide an electrical junction box that can be reduced in size while enhancing versatility and reducing costs.

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 junction box provided with the upper cover, the box body is assembled with each other and includes a plurality of blocks formed in the same shape, and at one end of each of the blocks, A connecting portion is provided, and a connecting receiving portion for connecting to the connecting portion is provided at the other end of each of the blocks, and the one end of the block is further connected to each other. A rib is provided between the connecting portion and the upper cover .

Electrical connection box of the present invention described in claim 2 is the electric connection box according to claim 1 Symbol placement, wherein the one end portion, a first engaging portion for attaching the upper cover is provided, and The other end has a second engaging part for attaching the upper cover, and an accommodating recess for accommodating the first engaging part and positioning the first engaging part at a position overlapping the electrical component. And is provided.

Electrical connection box of the present invention described in claim 3 is the electric connection box according to claim 1 or claim 2 wherein, prior Symbol block, providing the mounting portion of the front Symbol plurality of electrical components equal, the same arrangement Are formed in the same shape.

According to the electrical junction box of the present invention as set forth in claim 1 and claim 3 , since the upper cover is directly attached to the box body, it is smaller than the case where the box body is accommodated inside the upper cover and the lower cover. Can be achieved. In addition, since the plurality of blocks 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.

Moreover , since the rib which penetrates into the upper cover is provided at one end portion of the block, it is possible to prevent liquid such as water from entering the upper cover from the connecting portion between the connecting portion and the connecting receiving portion.

According to the electric junction box of the present invention described in claim 2 , the first engaging portion is accommodated in a plurality of blocks constituting the box main body, and the first engaging portion is positioned at a position overlapping the electric component. A recess 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.

As described above, according to the first and third aspects of the present invention, it is possible to reduce the size and to prevent an increase in the types of parts constituting the electrical junction box, thereby reducing the size. In addition, the versatility can be improved and the cost can be reduced.

Further , it is possible to prevent liquid such as water from entering the upper cover from the connection portion between the connection portion and the connection receiving portion.

The present invention according to claim 2 suppresses an increase in the size of the box body because the box body configured by assembling a plurality of blocks does not increase in length by the amount of the first engaging portion. can do. 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.

It is a perspective view of the electrical junction box concerning one embodiment of the present invention. It is a perspective view which shows the state which removed the upper cover from the box main body of the electrical-connection box shown by FIG. 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. It is a perspective view of the box main body of the electrical junction box shown by FIG. It is a top view of the box main body of the electrical junction box shown by FIG. 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. It is sectional drawing which follows the IX-IX line | wire in FIG. It is sectional drawing which follows the XX line in FIG. FIG. 3 is a side view of a motorcycle including the electric junction box shown in FIG. 2.

  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. 2 according to the present embodiment is mounted on a motorcycle 2 (shown in FIG. 14) as a moving body. As shown in FIG. 14, 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 storage box 3 of the motorcycle 2.

  As shown in FIGS. 1, 2, 3, and 4, 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. 5 to 10, the block 8 includes a box-shaped block main body 9, a connection fixing portion 10, a cover fixing portion 11, an accommodation recess 12, and a rib 33.

  The block main body 9 is formed in a box shape and has a fuse 9 or a relay 14 as an electrical component on a surface 9a (hereinafter referred to as an upper surface) located on the upper side in FIGS. 5, 6, 8 and 9. A mounting portion 15 for mounting the wire harness is provided, and a connector mounting portion for mounting the connector of the wire harness is provided on the lower surface 9b (hereinafter referred to as the lower surface) in FIGS.

  On the outer edge parallel to the longitudinal direction Y of the block body 9, as shown in FIGS. 12 and 13, a stepped portion 32 is provided over the entire length thereof. The step portion 32 is provided on the lower surface 9b side with respect to the upper surface 9a and extends linearly along the longitudinal direction Y. Moreover, the edge of the peripheral wall 28 mentioned later of the upper cover 7 is piled up on the surface of the level | step-difference part 32. FIG. Further, the outer edge of the upper surface 9 a of the block body 9 enters the inside of the peripheral wall 28 of the upper cover 7, that is, the upper cover 7. The step portion 32 is provided closer to the lower surface 9b than the upper surface 9a, and the edge of the peripheral wall 28 of the upper cover 7 is superimposed on the surface, and the outer edge of the upper surface 9a of the block body 9 enters the upper cover 7. Thus, liquid such as water is prevented from entering between the upper cover 7.

  The connection fixing portion 10 includes a connection engagement portion 19 and a guide groove portion 20 as a connection portion 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 of the block main body 9. A connecting engagement receiving portion 21 and a guide projection 22 as a connecting receiving portion provided at the end portion 18 (corresponding to the other end portion 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 connection fixing portion 10 having the above-described configuration passes the guide protrusion 22 between the pair of projecting wall 23 of the guide groove portion 20 to guide the blocks 8 so as to approach each other along the thickness direction Z, and to perform the connection engagement. When the part 19 engages with the connection engagement receiving part 21, the blocks 8 are connected in series. That is, the connection engagement part 19 is connected to the connection engagement receiving part 21.

  As shown in FIGS. 7 and 10, 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. 11, the accommodating recess 12 accommodates the engaging frame portion 25 inside when the blocks 8 are connected in series by the connecting and fixing portion 10. Further, as shown in FIG. 11, the receiving recess 12 is provided with a relay 14 as an electrical component mounted on the mounting portion 15 closest to the end surface 18 a of the other end portion 18 on the engaging frame portion 25 accommodated 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 rib 33 is provided at one end 17 of the block body 9. As shown in FIG. 12, a pair of ribs 33 are provided at intervals along the width direction X, and each rib 33 is formed to protrude from the stepped portion 32. In other words, the ribs 33 position the coupling engagement portion 19 as a coupling portion between each other. The ribs 33 extend linearly along the longitudinal direction Y and are flush with the upper surface 9a. Further, the rib 33 is provided integrally with the mounting portion 15 whose one end is closest to the one end portion 17. As shown in FIG. 13, the rib 33 located at the center in the longitudinal direction Y of the box body 6 enters the inside of the peripheral wall 28 of the upper cover 7, that is, the upper cover 7. The rib 33 penetrates into the upper cover 7, thereby preventing liquid such as water from entering between the upper cover 7 and the rib 33. Further, as shown in FIG. 4, the rib 33 located at the end in the longitudinal direction Y of the box body 6 penetrates into the notch 34 provided in the peripheral wall 28 of the upper cover 7 and the upper cover 7 is fitted. Shaking of the guide and the upper cover 7 is prevented.

  The block 8 having the above-described configuration includes the coupling engagement portion 19 and the coupling engagement receiving portion 21 that are coupled to each other on both sides in the coupling direction to be assembled with each other, and the hook portion 24 and the engagement frame portion for the upper cover 7. 25, and the same number and the same arrangement of the plurality of mounting portions 15 of the fuses 13 and the relays 14 are provided in the same shape.

  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 connection fixing 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.

  In the electrical junction box 1 configured as described above, the blocks 8 are connected to each other in series, the box body 6 is assembled, and the fuse 13, the relay 14, and the connector of the wire harness are attached to the box body 6. Thereafter, the upper cover 7 is directly attached to the box body 6 and assembled. The electrical junction box 1 assembled in this way is accommodated in the battery box 4 adjacent to the battery 5 and attached to the motorcycle 2.

  According to this embodiment, since the upper cover 7 is directly attached to the box body 6, it is possible to reduce the size compared to the case where the box body 6 is housed inside the upper cover and the lower cover. 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. Therefore, the electrical junction box 1 can be reduced in size, and versatility can be improved and the cost can be reduced.

  Further, since the rib 33 that penetrates into the upper cover 7 is provided at one end 17 of the block main body 9 of the block 8, the upper cover 7 is connected to the connecting portion between the connecting engagement portion 19 and the connecting engagement receiving portion 21. It is possible to prevent liquid such as water from entering inside.

  An accommodating recess 12 is provided in which the engaging frame portion 25 is accommodated in a plurality of blocks 8 constituting the box body 6 and the engaging frame portion 25 is positioned at a position overlapping the relay 14. 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, 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 portion 18 Other end portion 19 Connection engagement portion (connection portion)
21 Connection engagement receiving part (connection receiving part)
24 Hook (second engagement part)
25 Engagement frame portion (first engagement portion)
33 Ribs

Claims (3)

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 body,
The box body is assembled with each other , and includes a plurality of blocks formed in the same shape with each other ,
A connecting portion is provided at one end of each of the blocks, and
At the other end of each of the blocks, a connection receiving portion connected to the connection portion is provided,
The one end of the block is further provided with a rib for positioning the connecting portion between them and penetrating into the upper cover . The one end portion is provided with a first engagement portion for attaching the upper cover, and
A second engaging portion for attaching the upper cover to the other end portion, and an accommodating recess for accommodating the first engaging portion and positioning the first engaging portion at a position overlapping the electrical component. The electrical junction box according to claim 1, further comprising: Before Symbol block, the same number of attachment portions of the front Symbol plurality of electrical components, electrical connection box according to claim 1 or claim 2 wherein, characterized in that it is formed in a same shape by providing the same arrangement.

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