JPH0573883U - Chain-shaped electrical connector - Google Patents

Abstract

(57) [Summary] [Purpose] To reduce the pitch of electrical connectors in a chained electrical connector in which one ends of the electrical connectors are connected by a carrier in a parallel state. [Structure] A first chain-shaped electrical connector and a second chain-shaped electrical connector, which are formed by connecting one end of each electrical connector on the wire crimping side with a carrier and processing them in parallel at a constant pitch, are provided.
And the flat carriers of the second chain-shaped electrical connector are stacked one above the other so as to position the electrical connector of the second chain-shaped electrical connector between adjacent electrical connectors of the first chain-shaped electrical connector, In this state, the superposed carriers are joined together to reduce the pitch of the parallel electrical connectors.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a chained electrical connector, and more specifically, in a joint box, a relay box, a fuse box, etc. mounted in an automobile or the like, a plurality of continuous electrical connections of the same power supply circuit connected to a fuse. It is used as a child.

[0002]

[Prior Art]

 In a fuse box or the like used in an automobile or the like, as shown in FIG. 8, an individual electric connector 1 to be connected to a fuse 5 is mounted in a terminal accommodating chamber 4 provided in a box (connector) 3. In the case of the same power supply circuit, one electric connector 1A is connected to the power supply 7 through the electric wire 6, and the electric wire connector 1A and the other electric connectors 1B and 1C are short-circuited (conducting each other). ) Is provided and a common power source is used.

As the connecting piece 8, a carrier of an electric connector has been conventionally used as shown in the figure. The electrical connectors are formed in a parallel state by punching out a metal plate with a press machine and bending the punched and expanded product. As shown in FIG. 9, the electrical connectors 1 formed in parallel are connected to each other. The tip of the wire connection side is connected by the carrier 2. Therefore, when a carrier is used as the connecting piece 8 for electrically connecting the electric connectors 1A, 1B, 1C of the same power supply circuit connected to the fuse 5 as described above, the pitch of the electric connectors 1 connected by the carrier 2 It is necessary to match B with the pitch A of the terminal accommodating chamber 4.

However, since the electrical connector is formed by bending the unfolded state as described above, the length of the carrier 2 between the adjacent electrical connectors 1 is limited by the unfolded state. Big On the other hand, the pitch A of the terminal accommodating chamber 4 of the fuse box 3 is set to be relatively small due to a demand for downsizing. Therefore, the pitch B of the electrical connectors 1 connected by the carrier 2 is generally larger than the pitch A of the terminal accommodating chamber 4.

Therefore, as shown in FIGS. 10 (A) and 10 (B), the carrier 2 between the adjacent electrical connectors, which are the connecting pieces 8, is bent to form a step portion 2 a, and the length of the carrier 2 is increased. Is reduced to match the pitch B ′ of the electrical connector 1 with the pitch A.

[0006]

[Problems the device is trying to solve]

 The electrical connector connected to the fuse by the carrier is composed of two electrical connectors 1 connected by a connecting piece 8 made of a carrier 2 or three electrical connectors, depending on the circuit design. Therefore, it is necessary to cut from the state of being connected by the carrier 2 provided with the step portion 2a shown in FIG. 10 at the portion of the carrier 2 to obtain the state shown in FIG. 8 such as two stations or three stations.

For example, in order to cut at the portion of the carrier 2 provided with the step portion 2a, as shown in FIG. 11, a cutter holder 9 of a crimping die is inserted into the lower portion of the step portion 2a, and then upwardly moved. The placed slide cutter 10 may be lowered and cut.

Therefore, the structure of the crimping die becomes complicated, and if the position of the step portion 2a and the holder 9 deviate from each other even a little, the holder 9 pushes the carrier 8 forward at the time of insertion, and the crimping deviation occurs. There was a problem that defective products were likely to appear. Further, when the height of the stepped portion 2a is made large and the pitch B'is made small, the width W of the stepped portion 2a also becomes small and there is a problem that the width of the die holder 9 is restricted.

Further, the carrier is liable to be stretched and contracted in the lateral opening direction at the stepped portion which is bent, and is also liable to be warped in the lateral direction, which is a problem in strength.

The present invention has been made in view of the above problems, and the pitch of the electrical connector can be contracted so as to match the pitch of the terminal accommodating chamber in which the electrical connector is mounted, without bending the carrier. The purpose of the present invention is to make it possible to cut at the flat-shaped carrier portion so as to eliminate the above-mentioned problems at the time of cutting, and to eliminate the stretching, shrinkage, warpage, etc. that occur at the portion where the pitch is adjusted by bending.

[0011]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, one end of each electric connector on the wire crimping side is connected by a carrier and processed into a parallel state with a constant pitch, a first chain-shaped electrical connector and a second chain-shaped electrical connector. A child is provided, and the flat carriers of the first and second chain-shaped electrical connectors are stacked one above the other so that the second carrier is provided at the center of the carrier between the adjacent electrical connectors of the first chain-shaped electrical connector. The electric connector of the chain-like electric connector is positioned, and in this state, the electric parts of the first chain-like electric connector and the electric chain of the second chain-like electric connector are joined by joining the above-mentioned carrier parts. And the alternating electric wires are alternately arranged in parallel, and the pitch of the electric wires connected in parallel is set to 1/2 of the pitch of the electric wires of the first and second electric wires. Is provided.

The pitch of the adjacent electrical connectors of the chain-shaped electrical connector formed by superposing the first and second chain-shaped electrical connectors is determined by the pitch of the terminal accommodating chambers such as the fuse box and the joint box. The fuses are attached to the fuse box or the like as a plurality of connected electrical connectors used for the same power supply circuit that is connected to the fuses by cutting them at the above-mentioned overlapped carrier parts. ..

As the first chain-shaped electrical connector and the second chain-shaped electrical connector, those having the same size of wire barrel and insulation barrel and provided with an electrical connector for crimping electric wires of the same size are used. The electrical connectors of the same shape may be arranged in parallel. Alternatively, the first chain-shaped electrical connector is an electrical connector for heavy electrical wires, and the second chain-shaped electrical connector is an electrical connector for thin electrical wires, and electrical connectors for thick electrical wires and thin electrical wires are provided. The configuration may be such that they are alternately arranged in parallel.

[0014]

[Action]

 By overlapping the two sets of chain-like electrical connectors as described above, the pitch can be reduced to ½ without providing a stepped portion in the carrier portion between the electrical connectors. As described above, since the carrier portion has a flat plate shape in which two sheets are superposed, the flat plate portion can be cut, and the problem that occurs when cutting at the stepped portion can be eliminated. In addition, since the carrier portion is not bent, there is no problem of strength such as expansion and contraction, warpage, etc. On the contrary, the strength is improved because the two layers are joined together.

Further, when the thick and thin electrical connectors are arranged in parallel, it is not necessary to separately prepare the thick and thin electrical connectors, and the product number can be reduced.

[0016]

【Example】

 Hereinafter, the present invention will be described with reference to the embodiments shown in the drawings. 1 to 3 show a first embodiment. As shown in FIG. 3, the chain-shaped electrical connector 20 of the first embodiment is a combination of the first and second chain-shaped electrical connectors 21 and 22 of the same shape, and a wire barrel 23 and an insulation barrel of the same shape. Electrical connections 25 and 26 having 24 are alternately juxtaposed.

In each of the first and second chain-shaped electrical connectors 21 and 22, after punching out a single metal plate, the developed portion of each electrical connector is bent to form the wire barrel 23 and the insulator. The electrical connectors 25 and 26 having the aeration barrel 24 and the electrical contact portion 27 are connected by flat carriers 28 and 29 to have a shape shown in FIG. The pitches of the electrical connectors 25, 26 of the first and second chain-shaped electrical connectors 21, 22 have a constant pitch P.

The central portions C and C ′ of the carriers 28 and 29 between the adjacent electrical connectors 25 and 26 of the first and second chain-shaped electrical connectors 21 and 22 are located at positions indicated by ○ in the figure. is there. As shown in FIG. 3, the second chain-shaped electrical connector 22 is positioned below the first chain-shaped electrical connector 21, and the carrier 29 is superposed on the lower surface of the carrier 28. The electrical connection 26 of the second chain-shaped electrical connector 22 on the central portion C of the carrier 28 of the second chain-shaped electrical connector 22 and thus the first chain-shaped electrical connection of the carrier central portion C ′ of the second chain-shaped electrical connector 22. The electric connector 25 of the child 21 is positioned.

As described above, the carriers 28 and 29 are overlapped with each other, and the electrical connectors 25 and 26 are alternately juxtaposed at a pitch of 1 / 2P. It is joined. The joining is carried out by spot welding, ultrasonic welding, caulking, or the like so that the carriers 28 and 29 can be electrically connected to each other.

As described above, by using the two sets of the chain-shaped electric connectors 21 and 22, the carriers 28 and 29 are superposed and integrally joined to each other, so that the pitch of the adjacent electric connectors 25 and 26 is increased. As described above, the pitch can be reduced to 1/2 of the pitch P of the chain-like electrical connectors 21 and 22. The pitch P of the chain-like electrical connectors 21 and 22 is preset so that the pitch of 1/2 P matches the pitch A of the terminal accommodating chamber 4 of the fuse box 3 shown in FIG.

The above-mentioned chain-shaped electrical connector 20 is for two continuous electrical connectors 25 and 26, or electrical connector 25-26-25,26-, depending on the circuit design of the fuse box or the like to be mounted. Since 25-26 are used for three consecutive connections such as three, the carrier is cut at the required position. The carrier portion has a structure in which two flat plate-shaped carriers 28 and 29 are stacked, and the flat plate-shaped portion can be cut. Therefore, it is possible to solve the problem that occurs when cutting at the folded carrier part.

4 to 7 show a second embodiment of the present invention. As shown in FIG. 7, the chain-like electrical connector 30 of the second embodiment includes a first chain-like electrical connector 33 in which electrical connectors 31 for thick electric wires are connected in parallel by a carrier 32, and a thin electrical wire. A second chain-like electric connector 36 in which the electric connecting members 34 are connected in parallel by the carrier 35 is formed by superposing the carriers 32 and 35 in the same manner as in the first embodiment.

The thick wire electric connector 31 of the first chain-shaped electric connector 33 is formed by crimping the wire barrel 38 and the protruding portions 38a, 39a on both sides of the insulation barrel 39 with a thick outer wire. Large protrusions so that they can be fixed. On the other hand, the electric connector 34 for the fine electric wire of the second chain-shaped electric connector 36 projects both side portions 38a ', 39a' of the wire barrel 38 ', 39' to such an extent that the fine electric wire can be caulked and fixed. The amount of protrusion is smaller than for thick ones.

As described above, the electric connectors 31 and 34 of the first and second chain-shaped electric connectors 33 and 36 are different from those for thick objects and thin objects, but the respective electric connectors 31 and 32 are different. The pitch P is set to be the same. Therefore, as in the case of the first embodiment, the first and second chain-like electrical connectors 33 and 36 are superposed with the carriers 32 and 35 and integrally joined to each other, so that the pitch of 1 / 2P can be used for thicker objects. The electric connectors 31 for electric wires and the electric connectors 34 for small electric wires are alternately arranged in parallel, and a chain-shaped electric connector 30 in which the carrier portions are two sheets of the carriers 32 and 35 can be formed.

FIG. 6 shows the chain-shaped electrical connector 30 cut into two electrical connectors. Since this double electrical connector is provided with an electrical connector 31 for thick objects and an electrical connector 34 for thin objects, it can be used regardless of whether the electric wire connected to the power supply side is thick or thin. You can do it. In this way, since it becomes an electrical connector for different sizes, it is not necessary to separately provide an electrical connector for thin electric wires and an electrical connector for thick electric wires, and product numbers can be integrated.

[0026]

[Effect of the device]

 As is apparent from the above description, in the chain-like electrical connector according to the present invention, two chain-like electrical connectors are arranged so that one electrical connector is positioned between the other electrical connectors. Since the portions are overlapped and integrally joined, the pitch of the electrical connectors can be reduced to 1/2 pitch. In this way, in order to reduce the pitch of the electrical connectors, the carrier portion is not bent and is formed into a flat plate shape of two sheets, so the problem at the time of cutting at the carrier portion can be solved. .. That is, since the cutting with the crimping die can be performed on the flat plate portion that is not bent, the cutting mechanism is not complicated and it is not necessary to insert the cutter holder into the bent step. , It is possible to prevent the defective product from coming out due to the displacement during crimping.

Further, when the carrier is bent to adjust the pitch, there is a problem in strength due to expansion and contraction and warpage at the bent part. Since two flat plate portions are stacked to adjust, the strength of the carrier portion can be improved conversely.

Furthermore, when the chain-shaped electrical connector for thick electric wires and the chain-shaped electrical connector for thin electric wires are combined, a unique effect that an electric connector for different sizes can be obtained is obtained. There is.

[Brief description of drawings]

FIG. 1 is a plan view showing a first embodiment of the present invention.

FIG. 2 is a schematic front view of FIG.

FIG. 3 is a drawing showing a manufacturing process of the first embodiment.

FIG. 4 is a plan view of a second embodiment of the present invention.

5 is a schematic front view of FIG.

FIG. 6 is a plan view of a case where the chain-shaped electric connector of the second embodiment is used for two continuous lines.

FIG. 7 is a drawing showing a manufacturing process of the second embodiment.

FIG. 8 is a perspective view showing an electric connector to which the fuse box is attached.

FIG. 9 is a plan view of a conventional chained electrical connector.

10 (A) is a plan view showing a state in which the chain-like electric connector of FIG. 9 is bent, and FIG. 10 (B) is a perspective view.

FIG. 11 is a schematic diagram showing a conventional problem.

[Explanation of symbols]

 3 Fuse box 4 Terminal accommodating chamber 5 Fuse 20,30 Chain-like electrical connector 21,33 First chain-like electrical connector 22,36 Second chain-like electrical connector 25,26 Electrical connector 28,29,32, 35 Carrier 31 Electric Connector for Thick Electric Wire 34 Electric Connector for Thin Electric Wire

Claims (3)

[Scope of utility model registration request] 1. A first chain-shaped electrical connector and a second chain-shaped electrical connector which are formed by connecting one end of each electrical connector on the wire crimping side with a carrier and processing them in parallel at a constant pitch. And the flat carriers of the second chain-shaped electrical connector are stacked one above the other so as to position the electrical connector of the second chain-shaped electrical connector between adjacent electrical connectors of the first chain-shaped electrical connector, A chain-shaped electrical connector in which the electrical connectors of the first electrical connector and the electrical connectors of the second electrical connector are alternately juxtaposed to each other in such a state that they are joined together at the carrier portions. 2. The pitch of the adjacent electrical connectors of the chain-shaped electrical connector formed by superposing the first and second chain-shaped electrical connectors on each other is defined by a fuse box, a joint,
Attached to the fuse box, etc. as a plurality of connected electrical connectors used for the same power supply circuit that is connected to the fuse by cutting it at the overlapping carrier part to match the pitch of the terminal accommodating chamber of the box etc. The chain-like electrical connector according to claim 1, wherein 3. The electricity for a thick electric wire and that for a thin electric wire, wherein the first chain-shaped electric connector is an electric connector for a thick electric wire, and the second chain-shaped electric connector is an electric connector for a thin electric wire. The chain-like electrical connector according to claim 1, wherein the electrical connectors having different electric wire sizes are combined so that the connectors are alternately arranged in parallel.