JP6309277B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical junction box that is mounted on an automobile and mainly performs power distribution.

  An electrical junction box 310 shown in FIG. 12 is an electrical junction box for which the applicant has applied for a patent (Patent Document 1). The electrical junction box 310 includes a case 301, a block 305 attached in the case 301, and a plurality of electronic components attached to the block 305.

  The case 301 is formed by connecting the case main body 302 formed in a box shape by the peripheral wall 322, the back wall 323, and the opening 320, the cover 303 that covers the opening 320 of the case main body 302, and the case main body 302 and the cover 303. The hinge part 304 is integrally provided.

  The block 305 is provided with an electronic component mounting portion on one side and an electric wire insertion portion on the other side. The block 305 is housed in the direction of the arrow A from the opening 320 into the case main body 302 with the electronic component mounted on the electronic component mounting portion and the terminal-attached electric wire W inserted in the electric wire insertion portion. The block 305 is attached to the case main body 302 such that the electronic component mounting side faces the one side 322a of the peripheral wall 322.

  A wire insertion hole 324 is provided on a side surface 322b facing the one side surface 322a of the peripheral wall 322 (that is, the side surface 322b facing the side where the electric wire W with terminal of the block 305 is inserted).

  In such an electrical junction box 310, when the block 305 is attached to the case main body 302 or after the block 305 is attached to the case main body 302, the plurality of electric wires W led out from the electric wire insertion portion of the block 305 are inserted into the electric wire. By closing the cover 303 through the hole 324, it is possible to prevent the electric wire W from being caught between the case main body 302 and the cover 303.

JP2013-85404A

  However, when replacing the electrical components mounted on the block 305, the electrical junction box 310 must be replaced after opening the cover 303 and pulling the block 305 out of the case main body 302, which is cumbersome. There was a problem. When an object is placed on the rotation path of the cover 303 with the electric connection box 310 mounted on the automobile, the electric connection box 310 is removed from the vehicle body, the cover 303 is opened, and the block 305 is opened. There was a problem that the work had to be pulled out of the case 301 and the work was very complicated.

  Accordingly, an object of the present invention is to provide an electrical junction box that can easily perform an electronic component replacement operation.

The invention described in claim 1 is a case main body formed in a box shape by a peripheral wall, a back wall, and a first opening, a cover that covers the first opening, a block on which electronic components are mounted, The block is housed in the case body from the first opening, and the block is attached to the case body so that the side on which the electronic component is mounted faces one side surface of the peripheral wall. In the junction box, a second opening for exchanging the fuse is provided on the one side surface of the peripheral wall so that the fuse can be attached to and detached from the block while the block is housed in the case body for all the fuses in the electronic component. An electrical junction box comprising shielding means for covering the second opening.

  The invention described in claim 2 is the invention described in claim 1, wherein the shielding means is continuous with the cover, and the shielding means covers the second opening in a closed state of the cover. The shielding means is positioned at a position where the second opening is released when the cover is open.

  The invention described in claim 3 is the invention described in claim 1, wherein the shielding means is formed as a second cover separately from the cover, and the second cover is in a state in which the cover is closed. It can be opened and closed.

According to the first aspect of the present invention, the fuse replacement for the fuse can be attached to and detached from the block while the block is housed in the case body for all the fuses of the electronic component on the one side surface of the peripheral wall. Since the second opening is provided and the shielding means for covering the second opening is provided, the fuse can be exchanged from the second opening while the block is housed in the case body. Therefore, it is possible to provide an electrical junction box that can easily replace electronic components.

  According to the invention described in claim 2, the shielding means is continuous with the cover, and the shielding means is positioned at a position covering the second opening in a closed state of the cover. Since the shielding means is positioned at a position where the second opening is released in the open state, the number of parts can be reduced and the cost can be reduced.

According to the invention described in claim 3, the shielding means is formed as a second cover separately from the cover, and the second cover can be opened and closed with the cover closed. When the electrical connection box is mounted on an automobile and an object is placed on the rotation trajectory of the cover, the second opening is opened by opening the second cover without removing the electrical connection box from the vehicle body. From the fuse can be replaced.

It is a perspective view of the electric junction box concerning a 1st embodiment of the present invention, and is a perspective view showing an open state of a cover. It is a perspective view which shows the closed state of the cover in the electrical junction box shown by FIG. FIG. 2 is a plan view of the electric junction box shown in FIG. 1. It is explanatory drawing explaining the inside of the case main body shown by FIG. FIG. 5 is a perspective view of the block shown in FIG. 4. It is a figure which shows the modification of the electrical-connection box shown by FIG. It is a figure which shows the other modification of the electrical-connection box shown by FIG. It is a figure which shows the further another modification of the electrical-connection box shown by FIG. It is a perspective view of the electrical junction box concerning the 2nd Embodiment of this invention, and is a perspective view which shows the closed state of a cover, and the open state of a 2nd cover. FIG. 10 is a perspective view showing an open state of the cover and an open state of the second cover in the electrical junction box shown in FIG. 9. FIG. 11 is a perspective view illustrating a closed state of the cover and a closed state of the second cover in the electrical junction box illustrated in FIG. 10. It is a perspective view of the conventional electrical junction box, and is a perspective view which shows the open state of a cover.

(First embodiment)
An “electric connection box” according to a first embodiment of the present invention will be described with reference to FIGS.

  1-3 is mounted on an automobile and mainly performs power distribution. The electrical junction box 10 includes a case 1, a plurality of blocks 5, 6 attached in the case 1, and a plurality of electronic components 8 a, 8 b, 9 attached to these blocks 5, 6. The electronic components 8a and 8b are fuses, and the electronic component 9 is a relay.

  The case 1 includes a case main body 2 formed in a box shape by the peripheral wall 22, the back wall 23, and the first opening 20, a cover 3 that covers the first opening 20 of the case main body 2, and the case main body 2 and the cover 3. And a shielding part 7 (“shielding means” in the claims) provided continuously with the cover 3. The cover 3 opens and closes the first opening 20 by rotating around the hinge 4. Further, the case 1 is provided with a lock portion 36 and a lock receiving portion 26 for maintaining the state where the cover 3 is positioned at the closed position, a bracket 25 which is bolted to the vehicle body, and the like. The case body 2, the cover 3, the hinge part 4, and the shielding part 7 are integrally formed of synthetic resin.

  The blocks 5 and 6 are formed in a block shape from a synthetic resin. As shown in FIGS. 4 and 5, electronic component mounting portions 51, 52, 61 are provided on one side of the blocks 5, 6, and an electric wire insertion portion is provided on the other side. The electronic component mounting portions 51 and 52 are mounted with fuses 8a and 8b. The relay 9 is mounted on the electronic component mounting portion 61. An electric wire with a terminal is inserted into the electric wire insertion portion. The electric wire with terminal is electrically connected to the electronic components 8a, 8b, and 9.

  On a pair of opposing side surfaces of the block 5, a slide portion 57 that is a locking means with the case 1 is provided. On the other side surface of the block 5, three locking receiving portions 53 that are locking means with the block 6 are provided. On a pair of opposing side surfaces of the block 6, a slide portion 69 serving as a locking means for the case 1 is provided. On the other side surface of the block 6, one locking portion 64 that is a locking means with the block 5 or the other block 6 is provided. On the side surface of the block 6 opposite to the locking portion 64, there is provided one locking receiving portion 63 that is a locking means for the other block 6.

  Such blocks 5 and 6 are housed in the case body 2 through the first opening 20 as shown by an arrow A in FIG. The number and layout of the blocks 6 to be used can be changed according to the specifications of the electrical junction box. In the electrical junction box 10 of the present embodiment, one block 5 and six blocks 6 are used. In this case, three blocks 6 are assembled to one block 5, and one block 6 is assembled to each of the three blocks 6. In the electrical junction box 11 of the modification shown in FIG. 6, only the block 5 is used. In the electric junction box 12 of another modification shown in FIG. 7, one block 5 and one block 6 are used. In the electric junction box 13 of still another modification shown in FIG. 8, one block 5 and three blocks 6 are used. In these electrical connection boxes 10 to 13, since the blocks 5 and 6 can be directly assembled (locking receiving portions 53 and 63 and locking portion 64), the outer periphery of the blocks 5 and 6 is framed. There is no need to enclose it, and costs can be reduced.

  As shown in FIG. 4, a pair of rail portions 27 that are locking means with the block 5 and three pairs of rail portions 29 that are locking means with the block 6 are provided inside the case body 2. It has been. The pair of rail portions 27 is provided on the inner surface of the peripheral wall 22 and in the vicinity of the first opening 20. The pair of rail portions 27 positions the slide portion 57 of the block 5 to be slidable in the arrow A direction. The three pairs of rail portions 29 are provided in a row in the vicinity of the back wall 23. The two rail portions 29 located at both ends of the three pairs of rail portions 29 are along the inner surface of the peripheral wall 22, and the rail portions 29 not along the inner surface of the peripheral wall 22 are reinforced by the reinforcing ribs 28. The three pairs of rail portions 29 position the slide portion 69 of the block 6 so as to be slidable in the arrow A direction.

  The blocks 5 and 6 described above are assembled with each other, the electronic components 8a, 8b, and 9 are mounted on the electronic component mounting portions 51, 52, and 61, and the terminal-attached wires are inserted into the wire insertion portion. It is accommodated in the case body 2 from the portion 20. At this time, the slide portion 57 of the block 5 slides on the rail portion 27 and the slide portion 69 of the block 6 is accommodated in the case body 2 while sliding the rail portion 29. The blocks 5 and 6 are attached to the case main body 2 such that the side on which the electronic components 8a, 8b, and 9 are mounted faces the one side surface 22a of the peripheral wall 22.

  A wire insertion hole 24 is provided on the side surface 22b facing the one side surface 22a of the peripheral wall 22 (that is, the side surface 22b facing the side where the electric wires with terminals of the blocks 5 and 6 are inserted). The electric wire insertion hole 24 is formed by cutting out the end of the side surface 22b on the first opening 20 side.

  In such an electrical junction box 10, when the blocks 5, 6 are attached to the case body 2, or after the blocks 5, 6 are attached to the case body 2, a plurality of leads derived from the wire insertion portions of the blocks 5, 6 are provided. It is possible to prevent the electric wire from being caught between the case main body 2 and the cover 3 by passing the electric wire through the electric wire insertion hole 24 and closing the cover 3.

  Further, a second opening 21 for replacing parts is provided on one side surface 22 a of the peripheral wall 22. The second opening portion 21 is formed by cutting out portions of the side surface 22a facing the electronic component mounting portions 51 and 52 of the block 5. The shielding part 7 is for covering the second opening 21 and is formed in substantially the same shape as the second opening 21. The shield 7 is positioned at a position that covers the second opening 21 when the cover 3 is closed (FIG. 2), and is at a position that opens the second opening 21 when the cover 3 is open (FIGS. 1 and 3). Positioned. For this reason, when replacing the fuses 8a and 8b mounted on the electronic component mounting portions 51 and 52 of the block 5, the block 3 is opened in the case body 2 by opening the cover 3 as shown in FIGS. The fuses 8a and 8b can be replaced (removed) from the second opening 21 while being accommodated.

  Further, since the hinge portion 4 is set on a side surface perpendicular to the side surface 22a provided with the second opening portion 21 in the peripheral wall 22, the fuses 8a and 8b can be opened from the second opening portion 21 without opening the cover 3 widely. Can be exchanged.

(Second Embodiment)
An “electric connection box” according to a second embodiment of the present invention will be described with reference to FIGS. 9-11, the same code | symbol is attached | subjected to the same component as 1st Embodiment mentioned above, and description is abbreviate | omitted.

  The electrical junction box 110 includes a case 101, a plurality of blocks 5 and 6 attached in the case 101, and a plurality of electronic components 8 a, 8 b and 9 attached to the blocks 5 and 6. The blocks 5 and 6 and the electronic components 8a, 8b, and 9 have the same configuration as in the first embodiment.

  The case 101 is provided separately from the case body 102, the cover 103 that covers the first opening 20 of the case body 102, the hinge portion 104 that connects the case body 102 and the cover 103, and the cover 103. A second cover 107 (“shielding means” in the claims) covering the second opening 121 and a hinge portion 108 connecting the case main body 102 and the second cover 107 are integrally provided.

  The second opening 121 is formed by notching portions of the side surface 22 a of the peripheral wall 22 that face the electronic component mounting portions 51 and 52 of the block 5. The second cover 107 is for covering the second opening 121 and is formed in substantially the same shape as the second opening 121. The second cover 107 is connected to one side surface 22 a of the peripheral wall 22 via the hinge portion 108. As shown in FIG. 9, the second cover 107 can be opened and closed with the cover 103 closed.

  The cover 103 is provided with a locking portion 136 for maintaining the second cover 107 in the closed position. The second cover 107 is provided with an engagement receiving portion 126 that can be engaged with the engagement portion 136. As shown in FIG. 11, when the second cover 107 is positioned at the closed position with the cover 103 positioned at the closed position, the locking portion 136 and the locking receiving portion 126 are locked, and the second cover 107 is maintained in the closed position.

  When replacing the fuses 8a and 8b mounted on the electronic component mounting portions 51 and 52 of the block 5, the block 5 is accommodated in the case body 102 by opening the second cover 107 as shown in FIG. The fuses 8a and 8b can be exchanged (detached) from the second opening 121 without change.

  Further, in the electrical junction box 110 of the present embodiment, the second cover 107 can be opened and closed with the cover 103 closed, so that the cover 103 can be rotated while the electrical junction box 110 is mounted on an automobile. When an object is placed on the trajectory, the fuses 8a and 8b can be exchanged from the second opening 121 by opening the second cover 107 without removing the electrical junction box 110 from the vehicle body.

  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.

2,102 Case body 3,103 Cover 5 Block 7 Shielding part (shielding means)
8a, 8b Fuses (electronic parts)
DESCRIPTION OF SYMBOLS 10,110 Electrical junction box 20 1st opening part 21, 121 2nd opening part 22 Perimeter wall 23 Back wall 107 2nd cover (shielding means)

Claims (3)

A case main body formed in a box shape by a peripheral wall, a back wall, and a first opening; a cover that covers the first opening; and a block on which an electronic component is mounted.
In the electrical junction box, the block is accommodated in the case main body from the first opening, and the block is attached to the case main body in such a direction that the side on which the electronic component is mounted faces one side surface of the peripheral wall. ,
The one side surface of the peripheral wall is provided with a second opening for replacing the fuse that can be attached to and detached from the block while the block is housed in the case body for all the fuses of the electronic component,
An electrical junction box comprising a shielding means for covering the second opening. The shielding means is continuous with the cover;
The shielding means is positioned at a position covering the second opening when the cover is closed, and the shielding means is positioned at a position releasing the second opening when the cover is open. Item 3. An electrical junction box according to Item 1. The shielding means is formed as a second cover separately from the cover,
The electrical junction box according to claim 1, wherein the second cover can be opened and closed with the cover closed.

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