JP3435444B2 - Automotive fuse box - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuse box for an automobile, and relates to a method for wirelessly attaching a fuse box directly to an upper surface of a battery. 2. Description of the Related Art Conventionally, a fuse connected to an automobile battery is, as shown in FIG.
The lead wire 4 is connected to the battery terminal 3 connected to the battery terminal 3, and the lead wire 4 is routed to the fuse box 5,
It is connected to a fuse (not shown) housed inside the fuse box 5. [0003] With the above configuration, a fuse box must be separately installed, requiring installation space, and arranging a lead wire between the battery and the fuse box. And the wiring space for the lead wires is also required. Furthermore, the work of installing the fuse box and the work of arranging the lead wires are also required, which is troublesome. Further, since the connection is made via a lead wire, terminals are required on the connection side with the battery and the connection side with the fuse, respectively, so that the number of parts increases and the connection work between the lead wire and the terminal is also required. And other problems. The present invention has been made in view of the above-mentioned problems, and eliminates the lead wire between the battery and the fuse box which has been required in the past, directly attaches the fuse box to the battery, and reduces the number of parts. The challenge is to reduce it. [0006] In order to solve the above-mentioned problems, the present invention relates to a fuse box mounted on an upper surface of a battery for an automobile, wherein the case comprises a lower case and an upper case. A hole for inserting the battery post is provided on the bottom wall of the battery case, and a wire insertion groove is formed on the side wall by cutting out from the upper end, and a battery terminal portion and a bus bar portion for fitting and connecting to the battery post are formed in the lower case. A stud bolt for wire connection is projected from the conductive material, and one end of the plate fuse is overlapped with the bus bar portion and fastened and fixed, and the other end of the plate fuse is connected to the conductive material. Provide an automotive fuse box that is connected to a terminal of an electric wire terminal inserted through an electric wire insertion groove and covers the lower case with an upper case. are doing. As described above, the fuse box is mounted on the upper surface of the battery, and a bus bar portion for fuse connection is formed integrally with the battery terminal fitted and connected to the battery post. The terminal of the wire terminal is connected to the bus bar portion. When connected via a plate fuse, each electric wire can be directly connected to a power source via the fuse, and the lead wire conventionally required can be eliminated. Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 10 denotes a fuse box mounted on the upper surface of a battery 1 mounted on an automobile. The fuse box 10 comprises a case 1 comprising a lower case 11 and an upper case 12, and a conductive material 1 in which a battery terminal portion 13 fitted and connected to the battery post 2 on the positive side and a bus bar portion 14 for fuse connection are integrally formed.
5 and a plurality of plate fuses 16 each of which accommodates one end of the bus bar portion 14 of the conductive material 15. The lower case 11 has a bottom wall 11a formed in a stepped shape, a hole 17 for inserting the battery post 2 on the deep bottom side, and a side wall 11b on the deep bottom side.
Are formed by notching two electric wire insertion grooves 18 from the upper end. On the shallow side, fuse housing chambers 19 are juxtaposed with a bottom wall 11a via a partition wall 11c, and a side wall of each fuse housing chamber 19 is cut out to form an electric wire insertion groove 20. Further, a nut embedding portion 11d is provided in each fuse accommodating chamber 19, and a nut 23 is embedded therein. The battery terminal portion 13 and the bus bar portion 14 of the conductive material 15 are formed by punching a single conductive plate and then bending it. As shown in FIGS. 1 and 2, the battery terminal portion 13 has an annular portion 13 a provided with a slit which is fitted to the battery post 2.
And a pair of fastening plate portions 13b extending from free ends of both ends of the slit of the annular portion 13a. A stud bolt 22 is interposed between the pair of tightening plate portions 13b, the head of the stud bolt is locked to the bottom surface of the tightening plate portion 13b, and the shaft portion 22a protrudes from between the tightening plate portions 13b. Let me. A fastening tool 21 is fitted into these fastening plate portions 13b from above, a stat bolt shaft portion 22a is passed through a bolt hole 21a of the fastening tool 21, and a nut 25 is screwed from above to tighten. The plate portion 13b is fastened in the approaching direction so that the annular portion 13a is pressed against the outer peripheral surface of the battery post 2 and fixed. The battery post 2 and the electric wire w1 are connected by tightening the nut 22 after passing the terminal 24 connected to the end of the electric wire w1 through the stud bolt shaft portion 22a before tightening the nut 22. A plurality (four in the present embodiment) of screw holes 14a are formed at intervals in the bus bar portion 14 bent and extended from the battery terminal portion 13. One end of the plate fuse 16 is screwed. The upper case 12 has an opening 30 at a position facing the hole 17 of the lower case 11, and a lid 26 for opening and closing the opening 30 is integrally formed via a thin hinge 27. The lid 26 is provided with a peripheral wall portion 26a that becomes a part of the side wall of the upper case 12 when closed, and is formed by cutting the wire insertion groove 26b from the lower end of the peripheral wall portion 26a and locking the distal end of the lid 26. A portion 26c is provided so as to be fixed to the upper case 12 when the opening 30 is closed. Further, an electric wire insertion groove 28 is formed at a position of the lower case 11 facing the electric wire insertion groove 20. The plate fuse 16 has a shape provided through bus bar connecting portions 16a on both sides, an electric wire connecting portion 16b, and a stepped portion 16c which is bent.
Notches 16d and 16e for screw fixing to the wire connection portion 16b and
Is formed. Each plate fuse 16 is accommodated in a fuse accommodating portion 19 of the lower case 11, the bus bar connecting portion 16a is placed on the bus bar portion 14, the notch 16d is aligned with the screw hole 14a, and tightened with a screw (not shown). Fix it. On the other hand, a plurality of electric wires w1 connected to the fuse
Is passed through the wire insertion groove 20 of the lower case 11, and the hole 31 a of the terminal 31 connected to the terminal is cut out of the notch 1 of the plate fuse 16.
6e and positioned on the upper surface of the nut 23,
Tighten and fix with biz (not shown). As described above, the electric wire w1 connected to the fuse is
Can be directly connected to the plate fuse 16 having one end connected to the bus bar portion 14 integrated with the battery terminal portion 13 attached to the battery post 2, and the lead wire conventionally required can be eliminated. Further, a bus bar 33 to which a stud bolt 32 is attached is fixed to the bus bar portion 14 by welding or the like.
The terminal 34 connected to the terminal 3 is fastened and fixed with a nut 35. As described above, the conductive material 15 is accommodated in the lower case 11 and the plate fuses 16 are accommodated. The bus bar portions 14 of the conductive material 15 and the terminals of the terminals of the electric wires w2 are provided at both ends of the plate fuses 16. After connecting the terminals 31, respectively, the upper case 12 is put on the lower case 11, the locking means (not shown) provided on these cases is locked, and the fuse box 10 is assembled. At that time, the battery terminal portion 13 is covered with the fastener 21 and the nut 25 is loosely temporarily fixed to the stat bolt 22. When the fuse box 10 is mounted on an automobile, a lower case 11 is mounted on the upper surface of the battery 1. At this time, the deep bottom side is placed on the + side battery post 2 side, and the battery post 2 is inserted into the hole 17. Lid 2
6, the terminal 24 of the terminal of the electric wire w1 is inserted through the opening 30, and the nut 2 temporarily fixed to the stud bolt 22 is inserted.
5, the terminal 24 is fitted to the stud bolt 22, and then the nut 25 is tightened to the stud bolt 22, the fastening plate portion 13b of the battery terminal portion 13 is brought close to and the annular portion 13a is connected to the battery post 2. And the conductive material 15 is connected to the battery and at the same time to the electric wire w1. Further, when the electric wire w3 is also connected to the battery, the terminal 34 is fitted to the stat bolt 32,
Fasten and fix with a nut 34. These electric wires w1 and w3 pass through the electric wire insertion groove 18 of the lower case 11. As described above, after the connection with the battery post 2 and the connection with the electric wires w1 and w3 are completed, the lid 26 of the upper case 12 is rotated to close the opening 30 and fixed with the lock 26c. When the lid 26 is closed, the electric wire insertion groove 26b provided in the lid 26 coincides with the electric wire insertion groove 18 and serves as a hole for passing the electric wires w1 and w3. As described above, since the conductive material 15 is connected to the battery post 2, the electric wire w 2 connected to the bus bar portion 14 formed partially on the conductive material 15 via the plate fuse 16 is also connected to the plate fuse. It is connected to the power supply via the power supply 16. As is apparent from the above description, the fuse box according to the present invention forms a bus bar portion for fuse connection integrally with the battery terminal portion, and attaches one end of the fuse to the bus bar portion. Therefore, a lead wire for connecting the battery and the fuse box in the related art can be omitted. In addition, needless to say, since lead wires are not required, terminals for connecting to the battery side and the fuse side attached to both ends of the lead can be omitted. As described above, conventionally required lead wires,
No terminals are required, and the battery terminal and the bus bar are integrated, so that the number of parts can be greatly reduced and the number of assembling steps can be greatly reduced. Further, since the fuse box is mounted on the upper surface of the battery, the installation space for the fuse box which has been required conventionally can be eliminated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of an embodiment of the present invention. FIG. 2 is an enlarged perspective view showing a method of attaching a battery terminal of FIG. 1 to a battery post. FIG. 3 is a schematic view showing a state where the fuse box of the present invention is attached to a battery. FIG. 4 is a schematic view showing a conventional example. [Description of Signs] 1 Battery 2 Battery post 10 Fuse box 11 Lower case 12 Upper case 13 Battery terminal part 14 Bus bar part 15 Conductive material 16 Plate fuse 17 Holes 18, 20, 26b Electric wire insertion groove 19 Fuse accommodation part 21 Fastener 22 32 Stat bolt 26 Lid 30 Opening w1, w2, w3 Electric wire

Continuation of front page (56) References JP-A-5-260628 (JP, A) JP-A-11-41751 (JP, A) JP-A-5-258813 (JP, A) JP-A-8-315720 (JP, A) , A) Japanese Utility Model Open Hei 3-82543 (JP, U) Japanese Utility Model Showa 61-33367 (JP, U) Japanese Utility Model Showa 64-19261 (JP, U) Japanese Utility Model Showa 64-48865 (JP, U) Japanese Utility Model 7-41951 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01H 85/00

Claims (1)

(57) [Claim 1] A fuse box mounted on an upper surface of a battery for an automobile, wherein the fuse box comprises a lower case and an upper case, and a battery post is inserted into a bottom wall of the lower case. A hole is provided, and an electric wire insertion groove is formed in the side wall by cutting out from the upper end, and a conductive material integrally formed with a battery terminal portion and a bus bar portion to be fitted and connected to the battery post is accommodated in the lower case. Then, stud bolts for connecting electric wires are projected from the conductive material, and one end of the plate fuse is overlapped with the bus bar portion and tightened.
A fuse box for an automobile, wherein the lower case is covered with an upper case by fixing and fixing the other end of the plate fuse to a terminal of an electric wire terminal inserted through the electric wire insertion groove.