JPH05315040A - Branching of on-vehicle network - Google Patents

Abstract

PURPOSE:To provide a branching method of an on-vehicle network having the reduced number of parts and easy in optional application. CONSTITUTION:In a branching method of an on-vehicle network 11 provided with a unit performing control of an auxiliary machine of an automobile, an expected branching part of the net work 11 is cut followed and female terminals 14 are connected to the respective tip parts of the cut net work 11, and then the expected branching parts are inserted into a housing 13 for short circuit provided with short circuit members 15 having the contact parts coming into elastic contact with each of the female terminals 14 in order to be engaged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for branching an in-vehicle network.

[0002]

2. Description of the Related Art Conventionally, a joint method, a joint connector method, and a pressure welding joint connector method have been known as branching methods for an in-vehicle network. FIG. 3 is a diagram showing a branch of a vehicle-mounted network by a joint method. According to this method, first, the network 1
The insulation coating at the planned branching point is removed, and then one end of the branch line (composed of two electric wires) 2 is directly crimped to the exposed part and attached, and the other end of the branch line 2 is female terminal. 3 is attached, and then these female terminals 3 are mounted in a branching housing 4 to produce a branching connector 5.
Next, a connector of a unit for controlling various auxiliary machines such as a lamp and a wiper or a connector of an adjacent harness is connected to the produced branching connector 5. FIG. 4 is a diagram showing a branch of the vehicle-mounted network by the joint connector method. According to this method, first, the network 1 is cut at the planned branching point, then the female terminals 3 are attached to each end of the cut network 1, these female terminals 3 are mounted in the housing 7, and then, Female terminal 3 on one side
The branch line 2 attached with is attached in the housing 7. Then, each end of the network 1 mounted in the housing 7 and the female terminal 3 attached to the branch line 2 are connected by a short bar 6. Next, the branching connector 5 is produced on the other side of the branch line 2 in the same manner as above. FIG. 5 is a diagram showing a branch of an in-vehicle network by a pressure welding joint connector system. According to this method, first, the housing 9
The planned branch point of the network 1 and one side of the branch line 2 are arranged in the inside, and then the network 1 and the branch line 2 are pressure-contacted with each other by the short bar 8 to be connected, and then the other side of the branch line 2 is arranged. In the same manner as above, the branch connector 5 is manufactured. Here, Table 1 shows the names and the numbers of parts required in each of the above-mentioned methods.

[0003]

[Table 1]

[0004]

However, each branching method in the above-described conventional vehicle-mounted network has the following problems. That is, 1) In the joint method, the number of parts is small, but there are joints that significantly reduce productivity. 2) In the joint / connector method, the number of parts is large (as shown in Table 1, 18 pieces are required in total), resulting in high cost. In addition, it is necessary to slacken the network 1 in order to tape the connector (which has the housing 7, the short bar 6 and the female terminal 3) for directly branching the network to the wire harness. It is necessary to make it long (total 30-40 cm). 3) In the crimping joint connector system, it is necessary to increase the network length for the same reason as the joint connector system described above. As described above, in each conventional branching method, there are problems that the number of parts is large and the cost is high, and conversely, the productivity is poor even if the number of parts is small. There is also the problem that the configuration must be changed depending on the presence or absence of options.

[0005]

The present invention provides a method for branching an in-vehicle network which solves the above problems.
In a branching method of a vehicle-mounted network having a unit for controlling an auxiliary machine of an automobile, a branching point of the network is cut, and then a female terminal is connected to each tip of the cut network, and then the branching is performed. The first invention is to insert and lock a predetermined location in a short-circuit housing including a short-circuit member having a contact portion that elastically contacts each of the female terminals, and in the above invention, the short-circuit housing includes: A short-circuit member integrally formed with a terminal second locking portion that double-locks the female terminal or confirms locking of the female terminal, locks the female terminal in the short-circuit housing, and then The second invention is to electrically short-circuit the female terminals at the same time as mounting the second terminal locking portions.

[0006]

As described above, the planned branching points of the network are cut, and then the female terminals are connected to the respective tip portions of the cut network, and then the planned branching points are elastically contacted with the respective female terminals. By inserting and locking in a short-circuit housing having a short-circuit member having a contact portion, the number of parts can be reduced, and options can be easily handled.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. FIG. 1 is an explanatory diagram of an embodiment of a method of branching an in-vehicle network according to the present invention. The short-circuit connector 12 has the following configuration. That is, the short-circuit housing 13 has a part of the network 11 (hereinafter referred to as the branch line portion 11a) drawn therein from the left side of the drawing. In this case, the branch line portion 11a is cut in the short-circuit housing 13 and is composed of four electric wires. A female terminal 14 is attached to the tip of each electric wire. Reference numeral 15 is a short-circuit member having a contact portion having a spring property, and short-circuits the cut electric wire. This short-circuit connector 12 has a female terminal 14 attached to it.
To the connector of the unit to be controlled or the connector of the adjacent wire harness. The manufacturing process of the above-described short-circuit connector 12 is as follows. That is, 1) First, the planned branch point of the network 11 is cut,
Next, each of the cut ends of the branch line portion 11a is peeled off, and the female terminal 14 is attached by pressure bonding. 2) Next, the female terminal 14 is inserted and locked in the short-circuit housing 12. 3) Simultaneously with the insertion of the female terminal 14, the contact portions of the short-circuit member 15 elastically contact with the female terminal 14, respectively, and the disconnected networks 11 are electrically coupled (short-circuited) again. Table 2 shows the number of parts of this example manufactured in this way.

[0008]

[Table 2]

FIG. 2 shows an example in which the above-mentioned embodiment is applied to an automobile. In the figure, the portion indicated by reference numeral A is the application site. Further, 16a to 16i are units for controlling various auxiliary machines of each automobile. In this case, units 16a-1
6i is each option, and each of these has a cable 17,
It is connected to the network through the short-circuit connector 18. In addition, the network is generally a small size electric wire, insert the female terminal connected to this into the housing,
When making contact with the contact portion of the short-circuit member, a strong force is applied to the terminal due to contact friction, the electric wire is deformed, and it may be difficult to insert or lock the female terminal. In this case, if the short-circuit member is formed integrally with the terminal locking portion, the terminal is inserted into the housing, and then the short-circuit member assembled with the terminal second locking portion is mounted, workability is improved. To be done. This short-circuit member is provided from the rear of the housing (that is, the direction in which the terminals are inserted), from the opposite direction, or from the direction perpendicular to the two directions by using a hole provided therefor in the center of the housing. Can be attached to.

[0010]

As described above, according to the present invention, in a branching method of an in-vehicle network having a unit for controlling an auxiliary machine of an automobile, a planned branching point of the network is cut and then cut. After connecting the female terminal to each tip of the network, the planned branching point is inserted and locked in a short-circuit housing having a short-circuit member having a contact portion that elastically contacts each of the female terminals. Therefore, the number of parts can be reduced and the cost can be reduced, and the same structure can be used regardless of whether or not the units are connected, which has an excellent effect that the option can be easily handled.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of an example of a method of branching an in-vehicle network according to the present invention.

FIG. 2 is an explanatory diagram of an example in which the above embodiment is applied to an automobile.

FIG. 3 is an explanatory diagram of a conventional in-vehicle network branching method.

FIG. 4 is an explanatory diagram of another example of a conventional on-vehicle network branching method.

FIG. 5 is an explanatory diagram of still another example of the conventional method of branching the vehicle-mounted network.

[Explanation of symbols]

 1, 11 Network 2 Branch wire 3, 14 Female terminal 4 Branch housing 5 Branch connector 6, 8 Short bar 7, 9 Housing 11a Branch wire part 12 Shorting connector 13 Shorting housing 15 Shorting member

Claims (2)

[Claims] 1. A branching method for an in-vehicle network having a unit for controlling an auxiliary machine of an automobile, cutting a planned branching point of the network, and then connecting a female terminal to each tip of the cut network. After that, the method for branching a vehicle-mounted network is characterized in that the planned branching point is inserted and locked in a short-circuit housing having a short-circuit member having a contact portion that elastically contacts each of the female terminals. 2. The short-circuit housing is provided with a short-circuit member integrally formed with a terminal second locking portion that double-locks the female terminal or confirms locking of the female terminal. Locked in the short-circuit housing, then the second terminal
The method for branching a vehicle-mounted network according to claim 1, wherein an electrical short circuit is performed between the female terminals at the same time as mounting the locking portion.