JP2022127252A - Manufacturing method of electric wire with connector, and electric wire with connector - Google Patents

Abstract

To provide a manufacturing method of an electric wire with a connector with excellent productivity while improving the reliability of electrical connection between a terminal and the electric wire.SOLUTION: In a manufacturing method of an electric wire with a connector includes the steps of arranging a terminal 20 in a connector 60 such that an opening 75 of the connector 60 and a through hole 36 of the terminal 20 are in communication, press-fitting a conductor core wire 11 and press-contact blades 42 by pressing a portion away from a terminal portion 11a between the press-contact blades 42 while arranging the terminal portion 11a of an electric wire 10 on the through hole 36, bonding at least a portion of a plurality of strands constituting the terminal portion 11a by sandwiching the terminal portion 11a of the electric wire 10 between a first jig 130b inserted through the opening 75 and the through hole 36 and a second jig 130a facing the first jig 130b, and moving a second wall portion 80 such that the terminal 20 is surrounded by a first wall portion 70 and the second wall portion 80 to accommodate the terminal 20 in a terminal accommodating chamber 73.SELECTED DRAWING: Figure 5

Description

TECHNICAL FIELD The present invention relates to an electric wire with a connector in which a terminal attached to the electric wire is housed in a connector, and a method for manufacturing the electric wire with a connector.

Conventionally, there has been proposed a terminal-equipped electric wire in which a terminal and an electric wire are conductively connected by press-contacting (that is, press-contacting) a conductor core wire of the electric wire while sandwiching the conductor core wire of the electric wire with press-contact blades provided on the terminal. This type of electric wire with a terminal is typically made by inserting the electric wire with the conductor core covered with an insulating coating between the pressure contact blades, and the pressure contact blade is brought into contact with the conductor core wire while tearing the insulation coating with the pressure contact blade. By doing so, the workability of conductive connection is improved (see Patent Document 1, for example). An electric wire with a terminal manufactured in this way is housed in, for example, a terminal housing chamber of a connector and used.

JP-A-2000-058148

By the way, when the conductor core wire of the electric wire is composed of a plurality of wires (for example, when a plurality of wires are bundled), the pressure contact blade may directly contact some of the wires due to its structure. Although it is in direct contact with other strands, it cannot be in direct contact with them. Therefore, in this type of electric wire with a terminal, the sides of the wires are brought into close contact with each other to achieve conduction between the wires. (ie, indirect connection). However, if the wires are made of aluminum or an aluminum alloy, for example, the insulating oxide film that naturally forms on the surface of the wires has low conductivity between the wires, so the pressure contact blade is not directly exposed to the wires. Only some of the strands in contact with the terminal contribute to the conduction between the terminal and the wire, and other strands that cannot be directly contacted by the pressure contact blade do not substantially contribute to the conduction. From the viewpoint of increasing the reliability of the electrical connection between the terminal and the wire, it is desirable to achieve good electrical continuity between the entire plurality of strands and the press contact blade. Furthermore, it is desirable to improve the productivity of the connector-equipped electric wire in which the terminal attached to the electric wire is accommodated in the connector.

The present invention has been made in view of the circumstances described above, and an object of the present invention is to provide a method for manufacturing a connector-equipped electric wire with excellent productivity while improving the reliability of the electrical connection between the terminal and the electric wire. Another is the provision of electric wires with connectors.

In order to achieve the above object, a method for manufacturing an electric wire with a connector and an electric wire with a connector according to the present invention are characterized by the following [1] to [3].
[1]
A method for manufacturing an electric wire with a connector for manufacturing an electric wire with a connector in which a terminal attached to the electric wire is accommodated in a connector, the method comprising:
The electric wire has a conductor core wire having a plurality of conductive strands,
The terminal has a through hole provided at a portion where the end portion of the conductor core wire is located, and a pressure contact blade that presses and presses a portion of the conductor core wire away from the end portion,
The connector is
a first wall portion having an opening provided at a location where the through hole of the terminal is positioned; a second wall portion that is relatively movable with respect to the first wall portion; the first wall portion and the second wall portion; a terminal receiving chamber defined by a wall portion surrounding the terminal;
The manufacturing method is
disposing the terminal in the connector while aligning the terminal and the first wall so that the opening of the connector communicates with the through hole of the terminal;
While aligning the electric wire and the terminal so that the end portion of the electric wire is arranged on the through hole, a portion away from the end portion is press-fitted between the press-contact blades to form the conductor core wire. and a step of press-contacting the press-contact blade;
The terminal portion of the electric wire is sandwiched by a first jig that is inserted through the opening and the through hole, and a second jig that faces the first jig, and the plurality of the terminal portions are formed. bonding at least a portion of the strands to each other;
moving the second wall so that the terminal is surrounded by the first wall and the second wall to accommodate the terminal in the terminal accommodation chamber;
It shall be a method for manufacturing an electric wire with a connector.
[2]
An electric wire with a connector comprising an electric wire, a terminal attached to the electric wire, and a connector accommodating the terminal,
The electric wire is
A conductor core wire having a plurality of conductive strands, and a joint portion where at least a part of the plurality of strands constituting a terminal portion of the conductor core wire are joined to each other,
The terminal is
a through hole provided at a location where the joint portion of the conductor core wire is located;
The connector is
Having an opening provided at a location where the through hole of the terminal is located,
It must be a wire with a connector.
[3]
In the electric wire with a connector according to [2] above,
The connector is
A first wall portion having the opening, a second wall portion movable relative to the first wall portion, and the first wall portion and the second wall portion are arranged so as to surround the terminal. a terminal receiving chamber defined by
It must be a wire with a connector.

According to the method for manufacturing a connector-equipped electric wire having the above configuration [1], the first jig is inserted through the opening of the connector and the through hole of the terminal arranged so as to communicate with each other, and the first jig faces the first jig. With the second jig, at least a part of the plurality of strands forming the terminal portion is joined to each other with the terminal portion of the conductor core wire sandwiched therebetween. Then, the second wall portion is moved so that the terminal is surrounded by the first wall portion and the second wall portion, and the terminal is received in the terminal receiving chamber. By joining the strands at the ends of the electric wire, the conductivity between the strands is improved. The strands located inside the conductor core wire, which cannot be in direct contact with the conductor core wire, also contribute to the conduction between the terminal and the conductor core wire. Therefore, the reliability of electrical connection between the terminal and the wire can be improved. Furthermore, since this connection is performed while the terminals are arranged on the connector, the productivity of the electric wire with the connector can be improved as compared with the case where the separately prepared electric wire with the terminal is housed in the connector. Therefore, the manufacturing method of this configuration improves the reliability of the electrical connection between the terminal and the wire, and is excellent in the productivity of the connector-equipped wire.

According to the electric wire with connector having the configuration [2], the electric wire has a conductor core wire having a plurality of strands. The conductor core wire is pressed against the press-contact blade of the terminal, and at least a portion of the plurality of strands forming the end portion of the conductor core wire are joined together. By joining the strands at the ends of the electric wire, the conductivity between the strands is improved. The strands located inside the conductor core wire, which cannot be in direct contact with the conductor core wire, also contribute to the conduction between the terminal and the conductor core wire. Therefore, the reliability of electrical connection between the terminal and the wire can be improved. Furthermore, since the through-holes of the terminals and the openings of the connector are arranged to communicate with each other, by inserting a joining jig through the through-holes and the openings, the terminals are arranged on the connector, The end portions of the conductor core wires can be joined. Therefore, the connector-equipped wire of this configuration improves the reliability of the electrical connection between the terminal and the wire, and is excellent in the productivity of the connector-equipped wire.

According to the electric wire with connector having the configuration [3] above, the terminal is housed by surrounding the terminal with the first wall having the opening and the second wall that is relatively movable with respect to the first wall. A chamber is defined. Therefore, when the end portions of the conductor core wires are joined through the opening, the workability of the joining work can be improved by retracting the second wall portion to a position that does not interfere with the joining work.

ADVANTAGE OF THE INVENTION According to this invention, the manufacturing method of the electric wire with a connector which is excellent in productivity, improving the reliability of the electrical connection between a terminal and an electric wire, and an electric wire with a connector can be provided.

The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading the detailed description below with reference to the accompanying drawings.

FIG. 1 is a perspective view of an electric wire with a connector according to an embodiment of the present invention, FIG. 1(a) shows a state in which the cover is closed, and FIG. 1(b) shows a state in which the cover is open. show. 2(a) is a perspective view of the terminal shown in FIG. 1(b), and FIG. 2(b) is a side view of the electric wire and the terminal shown in FIG. 1(b). FIG. 3(a) is a plan view showing a state in which terminals are arranged in the connector with the cover portion opened, and FIG. 3(b) is an enlarged view of the portion A in FIG. 3(a). 3(c) is a plan view showing a state in which electric wires are arranged in the terminals shown in FIG. 3(a), and FIG. 3(d) is an enlarged view of the portion B of FIG. 3(c). . In FIG. 4, the electric wire is pushed into the conductor pressure contact part (pressure contact blade) by the pressure contact punch, the insulation crimping part is crimped to the wire by the crimper, and the end part of the conductor core wire is crushed by the pair of upper and lower compression pins. It is a perspective view which shows a mode that it is performed collectively. FIG. 5(a) shows the pressing of the electric wire into the conductor pressure contact portion (pressure contact blade) by the pressure contact punch, the crimping of the covering crimping portion to the wire by the crimper, and the pressing of the end portion of the conductor core wire by a pair of upper and lower compression pins. Fig. 5(b) is an enlarged view of part C of Fig. 5(a) in a state before crushing of the end portions of the conductor core wires; 5(c) is a view corresponding to FIG. 5(b) in a state in which the joint portion is formed by crushing the end portion of the conductor core wire. 6A and 6B are perspective views of an electric wire with a connector according to a modification, FIG. 6A shows a state in which the main body and the cover are separated, and FIG. Shows installed.

An electric wire 1 with a connector according to an embodiment of the present invention will be described below with reference to FIGS. 1 to 5. FIG. As shown in FIG. 1 and the like, in the connector-equipped electric wire 1 , the terminal 20 attached to the electric wire 10 is accommodated in the connector 60 . The electric wire 10 is conductively connected to the terminal 20 by holding the conductor core wire 11 of the electric wire 10 between a plurality of press-contact blades 42 provided on the terminal 20 , which will be described later.

Hereinafter, for convenience of explanation, as shown in FIGS. . The "front-rear direction", the "width direction" and the "vertical direction" are orthogonal to each other. The front-rear direction coincides with the extending direction of the terminal 20, and the front side and the rear side correspond to the distal end side and the proximal end side of the terminal 20, respectively. Each member constituting the electric wire with connector 1 will be described in order below.

First, the electric wire 10 will be described. As shown in FIG. 2B, the electric wire 10 is composed of a conductor core wire 11 and an insulating coating 12 covering the outer periphery of the conductor core wire 11 . The conductor core wire 11 is an assembly of a plurality of strands in this example. Each wire is made of a conductive metal such as aluminum or an aluminum alloy. The insulating coating 12 is made of an insulating resin. In this example, the insulation coating 12 is removed at the tip portion of the electric wire 10 to expose the conductor core wire 11 for a predetermined length.

The terminal portion 11a (see FIG. 5(b), etc.) of the exposed conductor core wire 11 is later crushed by a pair of upper and lower compression pins 130a, 130b (see FIG. 5(a), etc.), and the terminal portion 11a (at least part of) the plurality of strands constituting the are joined (integrated) with each other.

Next, the terminal 20 will be explained. In this example, the terminal 20 is formed by press working, bending, etc., on a metal plate material in which the surface of a conductive metal plate (eg, copper plate, copper alloy) as a base material is covered with a plating material (plating layer). is formed by applying As shown in FIG. 2, the terminal 20 integrally includes a terminal connecting portion 30, a connecting portion 35, a conductor pressure contact portion 40, and a coating crimping portion 50. As shown in FIG. The terminal connecting portion 30, the connecting portion 35, the conductor pressure contact portion 40, and the covering crimping portion 50 are arranged in this order in a line along the front-rear direction from the front side toward the rear side.

The terminal connection portion 30 is a portion of the terminal 20 that is connected to the mating terminal, and in this example, has a rectangular tubular shape extending in the front-rear direction. The conductor pressure contact portion 40 is a portion to which the conductor core wire 11 covered with the insulating coating 12 at the tip of the electric wire 10 is connected by pressure contact. The conductor pressure contact portion 40 has a plate-like portion 41 consisting of a bottom plate portion extending in the front-rear direction and a pair of side plate portions. A plurality of (three in this example) press-contact blades 42 are provided on the plate-like portion 41 so as to be spaced apart in the front-rear direction.

Each of the plurality of press-contact blades 42 is composed of a pair of plate-like blade portions 43 that are arranged opposite to each other in the width direction with a gap (slot width) in the width direction. In this example, each blade portion 43 is a cut-and-raised piece that is cut and raised from the side plate portion of the plate-like portion 41 toward the inner side in the width direction (the other side plate). The slot width of the press contact blade 42 (pair of blade portions 43 ) is smaller than the outer diameter of the conductor core wire 11 .

The coating crimping portion 50 is a portion of the electric wire 10 that is crimped by crimping to the insulation coating 12 on the rear side of the portion where the conductor core wire 11 is press-contacted by the conductor press-contact portion 40 (press-contact blade 42). 51 and a pair of crimping pieces 52 extending upward from both lateral side edges of the bottom plate portion 51 .

The connection portion 35 is a portion that connects the terminal connection portion 30 and the conductor pressure contact portion 40 in the front-rear direction. Like the plate-like portion 41 of the conductor pressure contact portion 40, the connecting portion 35 is composed of a bottom plate portion extending in the front-rear direction and a pair of side plate portions. A through hole 36 penetrating vertically is formed in the bottom plate portion of the connecting portion 35 (see FIG. 2A).

Next, the connector 60 will be explained. As shown in FIG. 1, the connector 60, which is a resin molded product, includes a body portion 70 and a cover portion 80 connected to the body portion 70 by a hinge 90 (see FIG. 1(a)) so as to be openable and closable.

As shown in FIG. 1(b), the body portion 70 includes a bottom plate portion 71 in the form of a rectangular flat plate. A plurality of wall portions 72 projecting upward and extending in the front-rear direction are integrally provided on the upper surface of the bottom plate portion 71 so as to be arranged in a predetermined pattern at intervals in the width direction. As a result, a plurality of (six in this example) terminal receiving chambers 73 that open upward and extend in the front-rear direction are defined by the bottom plate portion 71 and the plurality of wall portions 72 so as to be aligned in the width direction. .

Upper openings of the front regions of the plurality of terminal accommodating chambers 73 are closed by a rectangular plate-like top plate portion 74 . The top plate portion 74 is provided integrally with the plurality of wall portions 72 and arranged to face the bottom plate portion 71 in the vertical direction. Therefore, in the present example, each terminal accommodating chamber 73 is a rectangular hole (through hole) extending in the front-rear direction surrounded by the entire periphery in the front region, and a region (through hole) in the rear region of the front region. The rear region) is a rectangular recess that is open at the top and extends in the front-rear direction.

As shown in FIG. 3, in the bottom plate portion 71, portions corresponding to portions near the front ends of the rear regions of the plurality of terminal accommodating chambers 73 (portions near the boundaries with the front regions) are vertically penetrated. An opening 75 is formed. As shown in FIG. 1B, a pair of locking claws 76 are integrally formed at the rear end portions of the end surfaces on both sides in the width direction of the bottom plate portion 71 .

As shown in FIG. 1, the cover portion 80 includes a rectangular plate-like cover body portion 81 . The cover main body portion 81 is connected to the top plate portion 74 of the main body portion 70 by a hinge 90 so as to be openable and closable (see FIG. 1A). When the cover main body 81 is open, the rear regions of the plurality of terminal receiving chambers 73 are open upward as shown in FIG. 1(b). As shown in (a), the upper openings of the rear regions of the plurality of terminal accommodating chambers 73 are closed by the cover body portion 81 .

Hereinafter, for convenience of explanation, the terms “front”, “rear”, “upper”, and “lower” of the cover 80 refer to “front”, “rear”, “upper”, and “upper” when the cover main body 81 is closed. and "below".

A plurality of wall portions 82 protruding downward and extending in the front-rear direction corresponding to the plurality of wall portions 72 of the main body portion 70 are integrally arranged on the lower surface of the cover body portion 81 so as to be spaced apart in the width direction. is provided. A pair of locking pieces 83 corresponding to the pair of locking claws 76 of the body portion 70 are integrally formed at the rear end portions of the end faces on both sides in the width direction of the cover body portion 81 . In the above, each member which comprises the electric wire 1 with a connector was demonstrated.

Next, a procedure for assembling the connector-equipped electric wire 1 will be described with reference to FIGS. 3 to 5. FIG. First, as shown in FIGS. 3A and 3B, the terminals 20 are arranged in the terminal accommodating chambers 73 of the body portion 70 of the connector 60 with the cover portion 80 (cover body portion 81) opened. be done. More specifically, the terminal connection portion 30 of the terminal 20 is inserted into the front region (through hole) of the terminal receiving chamber 73 from the rear side, and the opening 75 of the main body portion 70 and the through hole 36 of the terminal 20 are aligned. in the terminal accommodating chamber 73 so that the conductor pressure contact portion 40 and the covering crimping portion 50 are placed in the rear region (recessed portion with an upper opening) of the terminal accommodating chamber 73. placed.

Next, as shown in FIGS. 3(c) and 3(d), the electric wire 10 is placed on the terminal 20 placed in the terminal receiving chamber 73. Then, as shown in FIG. More specifically, the electric wire 10 is arranged such that the end portion 11a of the conductor core wire 11 is positioned above the through hole 36 of the terminal 20 (see FIG. and the terminal 20 so as to be placed on the covering crimping portion 50 .

Then, the electric wire 10 is pushed into the conductor press-contact portion 40 (press-contact blade 42), the sheath crimping portion 50 is crimped onto the wire 10, and the terminal portion 11a of the conductor core wire 11 is crushed all at once. As shown in FIGS. 4 and 5, the electric wire 10 is pressed into the conductor pressure contact portion 40 (pressure contact blade 42) using a pressure contact punch 110, and the insulation crimping portion 50 is crimped to the wire 10 by a crimper. 120, and crushing of the terminal portion 11a of the conductor core wire 11 is performed using a pair of upper and lower compression pins 130a and 130b.

Specifically, with the terminal 20 and the wire 10 arranged on the connector 60 (the terminal accommodating chamber 73) as described above, as shown in FIG. The electric wire 10 is pushed in from above using a pressure contact punch 110 . As a result, for each of the plurality of pressure contact blades 42, the insulating coating 12 is cut by the pair of blade portions 43, and the conductor core wire 11 is sandwiched between the pair of blade portions 43 in the width direction. press contact. As a result, the conductor core wire 11 of the electric wire 10 and the plurality of pressure contact blades 42 (that is, the conductor pressure contact portions 40) are electrically connected. However, among the plurality of strands constituting the conductor core wire 11, only some of the strands located outside the conductor core wire 11 are in direct contact with the pressure contact blade 42, and the rest of the strands are in direct contact with the pressure contact blade 42. cannot be physically contacted.

Further, as shown in FIG. 4, the pair of crimping pieces 52 of the cover crimping portion 50 are pushed in from above using the crimper 120 . As a result, the cover tightening portion 50 is crimped onto the insulation coating 12 of the electric wire 10 located at a location corresponding to the cover tightening portion 50 .

Furthermore, as shown in FIGS. 4, 5(a) and 5(b), the terminal portion 11a of the conductor core wire 11 of the electric wire 10 is inserted into both the opening portion 75 of the body portion 70 and the through hole 36 of the terminal 20. Compression pin 130b inserted from below and positioned below terminal portion 11a and compression pin 130a opposite to compression pin 130b and positioned above terminal portion 11a are used to compress in the vertical direction. . As a result, as shown in FIG. 5(c), (at least part of) the plurality of strands constituting the terminal portion 11a are joined together to obtain the joint portion 11b. In this way, the strands of the terminal portion 11a of the electric wire 10 are joined to obtain the joint portion 11b, whereby the strands are metal-to-metal bonded at the joint portion 11b, so that the conductivity between the strands is improved. Therefore, some strands of the conductor core wire 11 that are in direct contact with the pressure contact blades 42 of the terminal 20 and the remaining strands of the conductor core wire 11 that are not directly in contact with the pressure contact blades 42 are separated. , are reliably electrically connected via the joint portion 11b. As a result, not only some strands of the conductor core wire 11 with which the pressure contact blade 42 of the terminal 20 comes into direct contact, but also the remaining strands of the conductor core wire 11 with which the pressure contact blade 42 cannot come into direct contact. also contributes to conduction between the terminal 20 and the conductor core wire 11 .

As described above, the wire 10 is pressed into the conductor pressure contact portion 40 (pressure contact blade 42) by the pressure contact punch 110, the coating crimping portion 50 is crimped to the wire 10 by the crimper 120, and the pair of upper and lower compression pins 130a and 130b are used. The crushing of the terminal portion 11a of the conductor core wire 11 is collectively performed for each of the plurality of terminal accommodating chambers 73 in order.

After that, as shown in FIG. 1A, the cover portion 80 (cover body portion 81) is closed, and the pair of locking claws 76 of the body portion 70 and the pair of locking pieces 83 of the cover portion 80 are engaged. match. This engagement maintains the closed state of the cover portion 80 . As a result, the assembly of the electric wire with connector 1 is completed.

When the cover portion 80 is closed, as shown in FIG. 1A, the plurality of wall portions 72 of the body portion 70 and the plurality of wall portions 82 of the cover portion 80 face each other in the vertical direction. Upper openings of the rear regions of the plurality of terminal accommodating chambers 73 are closed by the cover body portion 81 . As a result, the rear area of each terminal receiving chamber 73 also becomes a rectangular hole (through hole) extending in the front-rear direction surrounded along the entire circumference, like the front area. In other words, each terminal accommodating chamber 73 is a rectangular hole (through hole) extending continuously in the front-rear direction so as to surround the terminal 20 over the entire front-rear direction.

(action/effect)
As described above, according to the method of manufacturing the connector-attached electric wire 1 according to the present embodiment, the compression pin 130b inserted through the opening 75 of the connector 60 and the through hole 36 of the terminal 20 arranged to communicate with each other, and the compression pin At least a part of the plurality of strands constituting the terminal portion 11a is joined to each other with the terminal portion 11a of the conductor core wire 11 sandwiched between the compression pin 130a facing the 130b. Then, the cover portion 80 is closed so that the terminal 20 is surrounded by the body portion 70 and the cover portion 80 , and the terminal 20 is accommodated in the terminal accommodating chamber 73 . By joining the strands of the terminal portion 11a of the electric wire 10, the continuity between the strands is improved. Instead, the strands located inside the conductor core wire 11 that cannot be directly contacted by the press contact blade 42 also contribute to the conduction between the terminal 20 and the conductor core wire 11 . Therefore, reliability of electrical connection between the terminal 20 and the wire 10 can be improved. Furthermore, since this connection is performed with the terminals 20 arranged on the connector 60, the productivity of the connector-equipped wire 1 can be improved compared to the case where the separately prepared terminal-equipped wire is housed in the connector. Therefore, the manufacturing method according to the present embodiment improves the reliability of the electrical connection between the terminal 20 and the electric wire 10 and is excellent in the productivity of the electric wire 1 with a connector.

Furthermore, according to the electric wire 1 with a connector according to the present embodiment, the electric wire 10 has the conductor core wire 11 having a plurality of strands. The conductor core wire 11 is pressed against the press-contact blade 42 of the terminal, and at least a portion of the plurality of strands forming the terminal portion 11a of the conductor core wire 11 are joined together. By joining the strands of the terminal portion 11a of the electric wire 10, the continuity between the strands is improved. Instead, the strands located inside the conductor core wire 11 that cannot be directly contacted by the press contact blade 42 also contribute to the conduction between the terminal 20 and the conductor core wire 11 . Therefore, reliability of electrical connection between the terminal 20 and the wire 10 can be improved. Furthermore, since the through-hole 36 of the terminal 20 and the opening 75 of the connector 60 are arranged to communicate with each other, a joining jig (compression pin 130b) can be inserted through the through-hole 36 and the opening 75. With the terminal 20 placed on the connector 60, the terminal portion 11a of the conductor core wire 11 can be joined. Therefore, the electric wire 1 with a connector according to the present embodiment improves the reliability of electrical connection between the terminal 20 and the electric wire 10 and is excellent in productivity of the electric wire 1 with a connector.

Furthermore, according to the electric wire 1 with a connector according to the present embodiment, the terminals 20 are surrounded by the main body portion 70 having the openings 75 and the cover portion 80 that is relatively movable with respect to the main body portion 70, so that the terminals can be accommodated. A chamber 73 is defined. Therefore, when the terminal portion 11a of the conductor core wire 11 is joined through the opening 75, the workability of the joining work can be improved by retracting the cover portion 80 to a position that does not interfere with the joining work.

<Other forms>
The present invention is not limited to the above-described embodiments, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the above-described embodiments, and can be modified, improved, etc. as appropriate. In addition, the material, shape, size, number, location, etc. of each component in the above-described embodiment are arbitrary and not limited as long as the present invention can be achieved.

For example, in the above-described embodiment, the body portion 70 and the cover portion 80 that constitute the connector 60 are connected via the hinge 90 . On the other hand, as shown in FIG. 6A, the body portion 70 and the cover portion 80 forming the connector 60 may be independent of each other.

In the modification shown in FIG. 6, the top plate portion 74 is omitted from the main body portion 70, and each of the terminal accommodating chambers 73 is a rectangular recess extending in the front-rear direction and having an upper opening over the entire area in the front-rear direction. It's becoming As in the above embodiment, the wire 10 is pushed into the conductor pressure contact portion 40 by the pressure contact punch 110, the covering crimping portion 50 is crimped to the wire 10 by the crimper 120, and the conductor core wire 11 is pressed by the pair of upper and lower compression pins 130a and 130b. After the terminal portions 11a are crushed in sequence for each of the plurality of terminal accommodating chambers 73, as shown in FIG. , is assembled to the body portion 70 so as to be stacked on the body portion 70, and the pair of locking claws 76 of the body portion 70 and the pair of locking pieces 83 of the cover portion 80 are engaged. This engagement maintains the stacked state of the cover portions 80 . As a result, the assembly of the electric wire with connector 1 is completed.

When the covers 80 are stacked, as shown in FIG. 6B, the plurality of walls 72 of the main body 70 and the plurality of walls 82 of the covers 80 face each other in the vertical direction. , the upper openings of the plurality of terminal accommodating chambers 73 are covered with the cover body portion 81 over the entire area in the front-rear direction. Thereby, each terminal accommodating chamber 73 becomes a rectangular hole (through hole) continuously extending in the front-rear direction so as to surround the terminal 20 over the entire front-rear direction.

Furthermore, in the above-described embodiment and the modification shown in FIG. Ultrasonic vibration may be applied to at least one of the pair of compression pins 130a and 130b (preferably compression pin 130a) to improve the redundancy of bonding at the bonding portion 11b.

Here, the features of the embodiment of the electric wire with connector 1 according to the present invention described above are summarized and listed briefly in [1] to [3] below.
[1]
A method for manufacturing an electric wire with a connector for manufacturing an electric wire with a connector 1 in which a terminal (20) attached to an electric wire (10) is housed in a connector (60), comprising:
The electric wire (10) has a conductor core wire (11) having a plurality of conductive strands,
The terminal (20) includes a through hole (36) provided at a location where the terminal portion (11a) of the conductor core wire (11) is located, and a location apart from the terminal portion (11a) of the conductor core wire (11). and a pressure contact blade (42) that presses across the
The connector (60) is
A first wall portion (70) having an opening (75) provided at a location where the through hole (36) of the terminal (20) is located, and relatively movable with respect to the first wall portion (70) A terminal receiving chamber (73) defined by a second wall (80) and the first wall (70) and the second wall (80) arranged so as to surround the terminal (20). and
The manufacturing method is
Aligning the terminal (20) and the first wall (70) so that the opening (75) of the connector (60) and the through hole (36) of the terminal (20) communicate with each other placing the terminal (20) in the connector (60) while
While aligning the wire (10) and the terminal (20) so that the terminal portion (11a) of the wire (10) is arranged on the through hole (36), the terminal portion (11a) is ) is press-fitted between the press-contact blades (42) to press-contact the conductor core wire (11) and the press-contact blades (42);
A first jig (130b) inserted through the opening (75) and the through hole (36), and a second jig (130a) facing the first jig (130b), the electric wire (10) a step of joining at least a part of the plurality of strands constituting the terminal portion (11a) to each other with the terminal portion (11a) of
The second wall portion (80) is moved so that the terminal (20) is surrounded by the first wall portion (70) and the second wall portion (80), and the terminal (20) is accommodated in the terminal. housing in the chamber (73);
A method for manufacturing an electric wire with a connector.
[2]
An electric wire with a connector (1) comprising an electric wire (10), a terminal (20) attached to the electric wire (10), and a connector (60) accommodating the terminal (20),
The electric wire (10) is
A conductor core wire (11) having a plurality of conductive strands, and a joint portion (11b) where at least a part of the plurality of strands constituting an end portion (11a) of the conductor core wire (11) are joined to each other. ), and
The terminal (20) is
A pressure contact is performed by sandwiching a through hole (36) provided at a portion where the joint portion (11b) of the conductor core wire (11) is located and a portion of the conductor core wire (11) away from the terminal portion (11a). a blade (42);
The connector (60) is
Having an opening (75) provided at a location where the through hole (36) of the terminal (20) is located,
Wire with connector (1).
[3]
In the electric wire with a connector (1) according to [2] above,
The connector (60) is
a first wall (70) having the opening (75), a second wall (80) relatively movable with respect to the first wall (70), and the first wall (70) a terminal receiving chamber (73) defined by the second wall (80) surrounding the terminal (20);
Wire with connector (1).

REFERENCE SIGNS LIST 1 electric wire with connector 10 electric wire 11 conductor core wire 11a end portion 11b joint portion 20 terminal 36 through hole 42 pressure contact blade 60 connector 70 body portion (first wall portion)
73 terminal housing chamber 75 opening 80 cover portion (second wall portion)
130a compression pin (second jig)
130b compression pin (first jig)

Claims (3)

A method for manufacturing an electric wire with a connector for manufacturing an electric wire with a connector in which a terminal attached to the electric wire is accommodated in a connector, the method comprising:
The electric wire has a conductor core wire having a plurality of conductive strands,
The terminal has a through hole provided at a portion where the end portion of the conductor core wire is located, and a pressure contact blade that presses and presses a portion of the conductor core wire away from the end portion,
The connector is
a first wall portion having an opening provided at a location where the through hole of the terminal is positioned; a second wall portion that is relatively movable with respect to the first wall portion; the first wall portion and the second wall portion; a terminal receiving chamber defined by a wall portion surrounding the terminal;
The manufacturing method is
disposing the terminal in the connector while aligning the terminal and the first wall so that the opening of the connector communicates with the through hole of the terminal;
While aligning the electric wire and the terminal so that the end portion of the electric wire is arranged on the through hole, a portion away from the end portion is press-fitted between the press-contact blades to form the conductor core wire. and a step of press-contacting the press-contact blade;
The terminal portion of the electric wire is sandwiched by a first jig that is inserted through the opening and the through hole, and a second jig that faces the first jig, and the plurality of the terminal portions are formed. bonding at least a portion of the strands to each other;
moving the second wall so that the terminal is surrounded by the first wall and the second wall to accommodate the terminal in the terminal accommodation chamber;
A method for manufacturing an electric wire with a connector. An electric wire with a connector comprising an electric wire, a terminal attached to the electric wire, and a connector accommodating the terminal,
The electric wire is
A conductor core wire having a plurality of conductive strands, and a joint portion where at least a part of the plurality of strands constituting a terminal portion of the conductor core wire are joined to each other,
The terminal is
a through hole provided at a location where the joint portion of the conductor core wire is located;
The connector is
Having an opening provided at a location where the through hole of the terminal is located,
Wires with connectors. In the electric wire with a connector according to claim 2,
The connector is
A first wall portion having the opening, a second wall portion movable relative to the first wall portion, and the first wall portion and the second wall portion are arranged so as to surround the terminal. a terminal receiving chamber defined by
Wires with connectors.

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