JP4285319B2 - Electrical junction box - Google Patents

Description

  The present invention relates to an electrical junction box, and is intended to detachably fix a component such as a connector or a vehicle body fixing bracket to a lock portion provided on an outer surface of a case side wall.

2. Description of the Related Art Conventionally, an electrical junction box has been used to intensively connect electrical circuits and the like between electrical components mounted on an automobile.
A structure capable of fixing a plurality of relay cassettes and the like on the outer surface of the case side wall of the electrical junction box is provided in Japanese Patent Laid-Open No. 11-234851 (Patent Document 1), as shown in FIG. In addition, a pair of fitting frames 2 having a large interval provided on the outer surface of the case side wall 1a of the electrical connection box 1 are protruded and the interval between the pair of fitting frames 2 is reduced on the outer surface of the case side wall. 3, and a lock claw 4 is provided on the outer surface of the case side wall sandwiched between the pair of fitting frames 3. As a result, as shown in FIG. 4 (B), the fuse cassette 5 can be fitted into one fitting frame 2 and locked together, and the relay cassette 6 can be fitted into the other fitting frame 3 and locked. The fuse cassette 5 and the relay cassette 6 can be selectively fixed to the same place on the outer surface of the case side wall.
Further, like the electrical junction box 1, there is a structure in which a relay cassette or the like can be fixed to the outer surface of the case side wall 1a, and a connector or a bracket for fixing a vehicle body can be fixed.

However, the electrical junction box 1 has a problem that only one of the fuse cassette 5 and the relay cassette 6 can be fixed to one lock portion provided on the outer surface of the case side wall 1a.
In particular, in the electrical junction box that fixes the vehicle body fixing bracket to the outer surface of the case side wall, the vehicle body fixing bracket often has a fixed position to the electrical junction box. It is preferable that the vehicle body fixing bracket can be fixed at all times. However, with the above structure, if other parts are fixed to the lock portion where the vehicle body fixing bracket is to be fixed, There is a problem that the fixing bracket cannot be fixed.
Conversely, when it is desired to add a connector to be attached to the side wall of the case, if the additional connector is attached to the lock portion to which the vehicle body fixing bracket is attached, there is a problem that the vehicle body fixing bracket cannot be attached.
Japanese Patent Laid-Open No. 11-234851

  The present invention has been made in view of the above problems, and when an additional connector is to be attached to the lock portion arranged in parallel on the outer surface of the case side wall of the electrical junction box, or the vehicle body fixing bracket is attached to the predetermined lock portion. An object of the present invention is to provide an electrical junction box that can be used for various designs in the case where it is necessary to be attached.

In order to solve the above-mentioned problems, the present invention provides at least one of a connector, a connector block, a relay block, a relay cassette, and a vehicle body fixing bracket along the entire outer periphery of the case side wall of an electrical junction box mounted on an automobile. A plurality of lock portions of the same shape that are selectively attached are provided side by side, and the common lock portion includes a pair of holding frames having an L-shaped section and / or a T-shaped section that protrude from the outer surface of the case side wall. A locking claw projecting from the outer surface of the case side wall sandwiched between the pair of holding frames, and a fitting frame is provided from a part of the upper end of the case side wall, and the locking claw projects from the fitting frame at least one projecting, has shifted the locking pawl of the upper layer connector locking portion the position of the locking pawl of the common locking portion above the upper connector locking portion of the shared lock portion obtained by In both cases, a current checking connector is attached to the upper layer connector lock portion, a vehicle body fixing bracket is attached to the common lock portion, and an upper end of the vehicle body fixing bracket contacts the lower surface of the fitting frame of the upper layer connector lock portion. It provides an electrical connection box, characterized in that in contact.

  According to the above configuration, the lock portion is provided side by side on the outer surface of the case side wall of the electrical junction box, and the upper layer connector lock portion is partially provided on the case side wall provided with the lock portion to provide the lock portion in a two-stage structure. Therefore, a part such as a connector or a vehicle body fixing bracket can be fixed to the case side wall in two upper and lower stages. Therefore, a large number of electrical components and a vehicle body fixing bracket can be fixed in a limited space on the case side wall of the electrical junction box.

As described above, the upper layer connector lock portion protrudes above the lock portion for fixing the vehicle body fixing bracket, and the current check connector is attached to the upper layer connector lock portion .

The current checking connector is preferably checked without interfering with a connector, a relay, or the like fixed to another lock portion at the time of checking. Therefore, it is preferable to distinguish the mounting position from other connectors and arrange it at an upper position, so that a current check connector is suitably attached to the upper-layer connector lock portion.
In addition, since the mating connector to be fitted to the connector or an electric wire to be connected to the connector is arranged above the lock portion for fixing the connector, it is not possible to provide another connector lock portion above the connector lock portion. It is not preferable. On the other hand, when a vehicle body fixing bracket that protrudes downward from the lock portion is attached, the upper portion is surely an empty space, so an upper layer connector lock portion is provided above the lock portion of the vehicle body fixing bracket. .

As described above, the upper connector locking portion that has shifted the position of the lock portion and the lock claw of the lower layer provided on the casing side wall outer surface.
As described above , the upper layer connector lock part and the lower layer lock part are shifted from each other, so that the electric wire connected to the connector fixed to the upper layer connector lock part does not get in the way, and the vehicle body fixing bracket is attached to the lower layer lock part. Etc. can be easily fixed. Further, it is possible to reliably prevent the upper end of the vehicle body fixing bracket to be attached to the lower layer lock portion from coming into contact with the lower surface of the fitting frame of the upper layer connector lock portion and contact with the connector attached to the upper layer connector lock portion. it can.

As described above, the common lock portion provided along the outer surface of the case side wall has the same shape, and the locked portion formed in the same shape of the connector, the connector block, the relay block, the relay cassette, and the vehicle body fixing bracket is arbitrarily provided. Can be locked .
If it is the said structure, according to a vehicle model, the components attached to the lock part of a case side wall can be changed arbitrarily, and it becomes a usability thing.

As described above, according to the present invention, a portion of the common lock portion is arranged at the upper end of the side wall of the case that is arranged in parallel around the entire circumference so that a connector, a connector block, a relay block, a relay cassette, a vehicle body fixing bracket, etc. can be attached. Since the upper layer connector lock portion having the lock claw protruding from the fitting frame is provided, it can be attached to the upper layer connector lock portion when there is an additional connector.

Embodiments of the present invention will be described with reference to the drawings.
1 and 2 show a first embodiment of the present invention, in which an internal circuit is accommodated in the case 10 of the electrical junction box and is not shown in the upper wall 10a of the case 10, Connectors, fuses and / or relay fittings are provided.

On the side wall 10b of the case 10, a large number of lock portions 12 are arranged along the entire circumference. Each lock portion 12 has a pair of holding frames 13 having a L-shaped section or a T-shaped section protruding from the outer surface of the side wall 10b, and a groove 10c provided on the outer surface of the case side wall 10b sandwiched between the holding frames 13. It consists of a lock claw 15 projecting from the outer surface of the lock piece 14 provided in a folded shape from the lower end side. The holding frame 13 is refracted with its tip end toward the center of the lock portion 12, and the refracting side serves as a guide portion 13a.
In this embodiment, all the lock parts 12 are common lock parts having the same shape, and three lock parts 12 are provided on the long side of the case side wall 10b and one on the short side.

The lock portion 12 can selectively fix any of a connector, a connector block, a relay block, a relay cassette, and a vehicle body fixing bracket, and is a common lock portion as described above . These parts fixed to the lock portion 12 are provided with a guide groove (not shown) into which a guide portion 13a provided on the holding frame 13 of the lock portion 12 is slid and inserted into a predetermined position. locking pawl 15 of the lock portion 12 is inserted and locked into the locking groove (not shown) provided in the component, the component is secured to the lock portion 12 to.
Further, when the vehicle body fixing bracket 20 is inserted between the case outer surface 10 b and the guide portion 13 a of the holding frame 13 on both sides in the width direction, the lock claw 15 is inserted into the lock hole 21 provided on the distal end side of the vehicle body fixing bracket 20. And the vehicle body fixing bracket 20 is fixed to the lock portion 12.

  Further, an upper-layer connector lock portion 16 protrudes upward from the upper end of the case side wall 10b above the lock portion 12 provided on the outer surface on the short side of the case side wall 10b. The upper connector lock part 16 has a locking claw 17b protruding from a central wall 17a of a fitting frame 17 having a substantially U-shaped cross section. Both ends of the fitting frame 17 of the upper-layer connector lock portion 16 are refracted inward to provide guide portions 17c, which are slid into guide grooves (not shown) of the current check connector 30 fixed to the upper-layer connector lock portion 16. The lock is coupled. The upper-layer connector lock portion 16 and the lock claws 17b and 15 of the lower-layer lock portion 12 are shifted from each other without being provided at positions facing each other.

Between the pair of holding frames 13 of the lock portion 12 provided on the outer surface on the short side of the case side wall 10b, as shown in FIG. The lock claw 15 of the lock portion 12 is engaged with the lock hole 21 of the vehicle body fixing bracket 20 to fix the front end side of the vehicle body fixing bracket 20 to the lock portion 12. Thereby, the electrical junction box 10 is fixed to the vehicle body via the vehicle body fixing bracket 20.
A relay cassette 31 is fixed to the lock portion 12 provided on the outer surface on the long side of the case side wall 10b. In addition, you may fix another connector etc. to the lock part 12 as needed.

  On the other hand, the current check connector 30 is fixedly locked to the upper layer connector lock portion 16 provided at a position shifted above the lower layer lock portion 12 to which the vehicle body fixing bracket 20 is fixed. At this time, the current check connector 30 fixed to the upper layer connector lock portion 16 is a connector, fuse or fuse fitted to the fitting portion of the vehicle body fixing bracket 20 or the relay cassette 31 and the case upper wall 10a fixed to the lock portion 12. / And higher than the relay.

  According to the said structure, while providing the lock part 12 in parallel along the outer surface perimeter of the case side wall 10b of the electrical junction box 10, the upper layer connector lock part 16 is further provided above this lock part 12, and it is set as a 2 step | paragraph structure. Therefore, the current check connector 30 and the vehicle body fixing bracket 20 can be fixed vertically to the case side wall 10b. Therefore, a large number of relay cassettes 31, the vehicle body fixing bracket 20, and the current check connector 30 can be fixed in a limited space on the case side wall 10 b of the electrical junction box 10.

  Further, since the upper layer connector lock portion 16 is provided above the lock portion 12 for fixing the vehicle body fixing bracket 20, even if the current check connector 30 is fixed to the upper layer connector lock portion 16, the lower lock portion 12 does not move. Accordingly, the vehicle body fixing bracket 20 whose fixing position is easily regulated can be securely fixed to the predetermined lock portion 12.

  Further, since the current check connector 30 is fixed to the upper-layer connector lock portion 16 and is disposed at a position higher than the vehicle body fixing bracket 20 and the relay cassette 31 fixed to the lock portion 12, the current check connector 30 When a current connector is checked by fitting a mating connector (not shown) to the connector 30, it is possible to easily check the current without interfering with a connector or a fuse attached to the lock portion 12.

FIG. 3 shows a second embodiment in which an upper layer connector lock portion 16 ′ is provided directly above the lower layer lock portion 12. With this configuration, it is possible to provide a lock portion without an empty space directly below the upper layer connector lock portion 16 ′.
Connectors and the like are respectively attached to the upper layer connector lock portion 16 ′ and the lower layer lock portion 12 provided at the upper and lower positions.

It is a perspective view of the electrical junction box of a 1st embodiment of the present invention. It is drawing which shows the state which fixed the bracket for vehicle body fixation, etc. to the lock part and upper layer connector lock part of an electric junction box. It is a principal part schematic of 2nd Embodiment of this invention. (A) (B) is drawing which shows a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Electrical junction box 12 Lock part 13 Holding frame 14 Lock piece 15 Lock claw 16 Upper layer connector lock part 17 Fitting frame 17b Lock claw 20 Car body fixing bracket 21 Lock hole 30 Current check connector 31 Relay cassette

Claims (1)

A plurality of locks of the same shape to which one or more of a connector, a connector block, a relay block, a relay cassette, and a vehicle body fixing bracket can be selectively attached along the entire outer surface of the case side wall of the electrical junction box mounted on the automobile The common lock portion is a pair of holding frames having a L-shaped section and / or a T-shaped section projecting from the outer surface of the case side wall, and the pair of holding frames sandwiched between the pair of holding frames. consists of a locking pawl which projects from the case side wall outer surface, and a fitting frame provided from a portion of the upper end of the case side wall, the upper connector locking portion is the shared lock portion is protruded a locking pawl from the fitting frame at least one projecting in upward, with which by shifting the locking pawl of the upper layer connector locking portion the position of the locking pawl of the common locking portion, conductive on the upper layer connector locking portion Check connector is attached, the vehicle body fixing bracket is attached to the shared lock unit, electric, characterized in that the upper end of the vehicle body fixing bracket is in contact with the lower surface of the fitting frame of the upper connector locking portion Connection box.

Images