JP3865983B2 - connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connector.
[0002]
[Prior art]
In the wire harness in which two twisted wires obtained by twisting two electric wires in a spiral shape are wired in parallel, as shown in FIG. 5, in the connector 101 provided in the middle of the routing route, one twist One electric wire 103a of the wire 102a and one electric wire 103b of the other twisted wire 102b are jointed by being pressed against the two press contact blades 105a and 105b of the press contact terminal fitting 104a, and the other electric wire of the one twist wire 102a 103c and the other electric wire 103d of the other twisted wire 102b are pressed and joined to the press contact blades 105c and 105d of the press contact terminal fitting 104b. A connector for such a wiring structure is disclosed, for example, in JP-A-8-162183.
[0003]
When performing this type of joint wiring, rather than twisting a part of the twisted wire that has been twisted in advance and ensuring that the parallel joint is secured and then crimping it, twist it after crimping two parallel wires. The workability is better when the twisted wires are combined. In addition, after pressure welding, cover the pressure contact part before twisting to prevent the wire from coming off from the pressure contact part or twisting force from the wire to the pressure contact part during twisting. It needs to be protected.
In view of such circumstances, the procedure of joint connection in the conventional connector is as follows. First, the two electric wires 103a and 103c are press-contacted, and then the press-contact portion is covered with a cover (not shown), and finally, the two electric wires 103a and 103c that have been press-contacted are twisted together to form one twisted wire 102a. Form. Next, after the remaining two electric wires 103b and 103d are pressed in the same procedure as described above, a cover is placed and twisted to form a second twisted wire 102b.
[0004]
[Problems to be solved by the invention]
In the conventional connector, four electric wires 103a, 103b, 103c, and 103d are wired in parallel, and the press-contact terminal fittings 104a and 104b are connected to the two electric wires 103a, 103c or 103b, 104d. The form is such that they are next to each other. That is, two electric wires 103a and 103c constituting one twisted wire 102a and two electric wires 103b and 103d constituting the other twisted wire 102b are alternately arranged.
[0005]
Here, looking back at the procedure of the joint, since the press contact and the cover are assembled for each twist wire 102a, 102b, for example, the press contact is completed in the state where the upper twist wire 102a in FIG. Of the four pressure contact blades arranged in parallel, the first and third pressure contact blades 105a and 105c from the top are two pressure contact blades every other place. The second and fourth press contact blades 105b and 105d need to be opened for press contact with the other twisted wire 102b. Therefore, one cover is required for each press contact blade 105a, 105b, 105c, 105d when the press contact is completed.
[0006]
The present invention has been made in view of the above circumstances, and aims to reduce the number of covers to be attached to the pressed parts.
[0007]
[Means for Solving the Problems]
According to the first aspect of the present invention, the plurality of electric wires in each twisted wire constitute a plurality of twisted wires with respect to the conductive path in which a plurality of twisted wires formed by twisting a plurality of electric wires are arranged in parallel. It is for making the connection of the form jointed separately with respect to an electric wire, Comprising: The housing which can wire the said electric wire which should be jointed in parallel, It is provided in this housing, A plurality of press contact terminal fittings provided with a plurality of press contact blades arranged in the wire parallel direction, and a cover attached to the housing so as to cover the press contact terminal fitting and the press contact portion of the wire. Therefore, at least one of the plurality of press contact terminal fittings is arranged with an electric wire not jointed by the press contact terminal fitting between the adjacent press contact blades. It is a form that ensures a relief portion for further wherein the cover is provided separately for each of the twisted wires, and the before stranding a plurality of wires forming each twisted wire is made, to the housing It is characterized in that it is assembled.
[0008]
According to a second aspect of the present invention, in the first aspect of the invention, a press contact blade of another press contact terminal fitting is disposed at a position corresponding to the escape portion in a direction substantially orthogonal to the electric wire parallel direction.
[0009]
[Action and effect of the invention]
[Invention of Claim 1]
One of the plurality of electric wires constituting one twist wire is pressed against one of the pressure contact blades adjacent to each other with the relief portion interposed therebetween, and the same twist wire is constituted on the escape portion. Only the other wire is routed, and the other wires routed in the escape portion are pressed against the press contact blade of another press contact terminal fitting. Thus, all the electric wires which comprise one twist line are pressed. Since there is no need to interpose an electric wire constituting another twisted wire between electric wires constituting one twisted wire, it is possible to cover the press contact portion of the electric wire constituting one twisted wire with one cover. is there. Therefore, the number of covers can be reduced as compared with the case where covers are individually covered for each electric wire.
[0010]
[Invention of claim 2]
Since the press contact blade of another press contact terminal fitting is disposed at a position corresponding to the escape portion in a direction substantially perpendicular to the wire parallel direction, the wire that is press-contacted through the escape portion is routed substantially linearly. be able to. Therefore, compared with the case where the electric wire is bent and wired, the contact reliability with the press contact blade is high, and the wiring route of the electric wire in the housing and the shape of the cover can be simplified.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
[Embodiment 1]
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. 1 and 2.
[0012]
In the first embodiment, a case will be described in which two twisted wires 10a and 10b configured by twisting two electric wires 11a and 11b are arranged in parallel. The connector according to the first embodiment includes a housing 12, press-contact terminal fittings 15a and 15b, and a cover 19.
The housing 12 is made of a synthetic resin material and has a shallow box shape with an open upper surface, and two twist wires 10a and 10b are penetrated in parallel in the interior. In the following description, what is arranged on the upper side in FIG. 1 is called a first twist line 10a, and what is arranged on the lower side is called a second twist line 10b. In the housing 12, the electric wires 11a and 11b constituting the twisted wires 10a and 10b are not twisted but are arranged in parallel with each other in a straight line. A holding groove 14 is formed at both portions in the wiring direction of the housing 12 to allow the electric wires 11a and 11b to be individually fitted to restrict loose movement.
[0013]
Further, in the housing 12, press contact terminal fittings 15a and 15b are arranged. As shown in FIG. 2, each press contact terminal fitting 15a, 15b is formed by punching a conductive metal plate into a predetermined shape, and has a base 16 elongated in a direction perpendicular to the wiring direction of the twisted wires 10a, 10b. The base 16 is composed of a pair of press contact blades 17a, 17b extending upward at substantially right angles, and a space between the press contact blades 17a, 17b is a relief recess 18 opened upward (the configuration of the present invention). (Relief part that is a requirement).
[0014]
Four of the press contact terminal fittings 15a and 15b are provided in the same shape and size with respect to one housing 12, and two of them (hereinafter referred to as the first press contact terminal fitting 15a) are parallel to each other and compared. It is located in the upper left position of the housing 12 in FIG. Further, the other two sheets (hereinafter referred to as second press-contact terminal fittings 15b) are arranged in the lower right position of the housing 12 in FIG. With this arrangement, the press contact blades 17a and 17b correspond to the holding grooves 14 in the wiring direction of the twisted wires 10a and 10b. In addition, the relief recess 18 of the first press contact terminal fitting 15a is provided on one of the second press contact terminal fittings 15b in the wiring direction of the twisted wires 10a, 10b (direction perpendicular to the parallel direction of the electric wires 11a, 11b) (FIG. 1). Corresponds to the upper pressure contact blade 17a. Similarly, the relief recess 18 of the second press contact terminal fitting 15b corresponds to the press contact blade 17b of one of the first press contact terminal fittings 15a (the lower side in FIG. 1) in the wiring direction of the twisted wires 10a and 10b.
[0015]
The cover 19 covers the pressure contact portions (pressure contact blades 17a, 17b) between the pressure contact terminal fittings 15a, 15b and the electric wires 11a, 11b by being attached so as to cover the open upper surface of the housing 12. Two are provided. Each cover 19 has a length over the entire length of the housing 12 in the wiring direction of the twisted wires 10a and 10b, but is the minimum necessary to cover only one twisted wire 10a and 10b in the parallel direction of the electric wires 11a and 11b. It is said that the width dimension.
[0016]
Next, the operation of this embodiment will be described.
The electric wires 11a and 11b (twisted wires 10a and 10b) are jointed in a predetermined pattern by the press contact terminal fittings 15a and 15b by being pressed against the predetermined press contact blades 17a and 17b. At the time of press contact, first, one of the two electric wires 11a and 11b constituting the first twist wire 10a is pressed against the upper press contact blade 17a in FIG. 1 of the first press contact terminal fitting 15a, and the other Is pressed against the press contact blade 17a on the upper side of the second press contact terminal fitting 15b. At this time, the first press-contact terminal fitting 15a is positioned so as to cross the wiring path of the electric wire 11b press-contacted to the second press-connect terminal fitting 15b. Is provided with a relief recess 18 corresponding to the wiring path of the electric wire 11b, so that the electric wire 11b press-contacted with the second press-contact terminal fitting 15b does not interfere with the first press-contact terminal fitting 15a. . Thereafter, one cover 19 is attached to the housing 12 so as to cover the two pressure-welded wires 11a and 11b. Then, the two twisted electric wires 11a and 11b are twisted to form the first twisted wire 10a.
[0017]
After the first twisted wire 10a is completed in this way, the second twisted wire 10b is pressed. The two electric wires 11a and 11b constituting the second twisted wire 10b are brought into pressure contact with the lower pressure contact blade 17b in FIG. 1 of the first and second pressure contact terminal fittings 15a and 15b. At this time, the electric wire 11a press-contacted to the first press-contact terminal fitting 15a does not interfere with the second press-contact terminal fitting 15b because it passes through the relief recess 18 of the second press-contact terminal fitting 15b. Thereafter, the cover 19 is attached so as to cover the pressure contact portion, and finally, the two electric wires 11a and 11b are twisted together to form the second twisted wire 10b.
[0018]
As described above, in the present embodiment, the electric wires 11a and 11b constituting the other twist wires 10a and 10b are interposed between the two electric wires 11a and 11b constituting the one twist wire 10a and 10b. Therefore, it is possible to cover the pressure contact portions of the electric wires 11a and 11b constituting one twist wire 10a and 10b with one cover 19. Therefore, the number of covers is reduced compared to the case where covers are individually covered for each electric wire.
[0019]
Further, the second press contact terminal fitting 15b is located at a position corresponding to the relief recess 18 of the first press contact terminal fitting 15a (or the second press contact terminal fitting 15b) in a direction substantially orthogonal to the parallel direction of the electric wires 11a and 11b. Since the press contact blades 17a and 17b of the (or first press contact terminal fitting 15a) are arranged, it is realized that the electric wires 11a and 11b press-contacted through the relief recess 18 are arranged almost linearly. . Therefore, the contact reliability with the press contact blades 17a and 17b is higher than when the wires are bent and routed, and the route of the wires 11a and 11b in the housing 12 and the shape of the cover can be simplified. .
[0020]
[Embodiment 2]
Next, a second embodiment of the present invention will be described with reference to FIGS.
In the second embodiment, a case where three twisted wires 10a, 10b, and 10c including two electric wires 11a and 11b are routed will be described. Since the effect of the second embodiment is the same as that of the first embodiment, the description thereof is omitted.
The connector according to the second embodiment includes a housing 20, press contact terminal fittings 25 a and 25 b, and a cover 29. The housing 20 is made of a synthetic resin material and has a shallow box shape with an open upper surface, and three twist wires 10a, 10b, and 10c are penetrated in parallel in the housing 20. In the following description, the first, second, and third twist lines 10a, 10b, and 10c are referred to in order from the top in FIG. In the housing 20, the electric wires 11a and 11b constituting the twisted wires 10a, 10b, and 10c are not twisted but are arranged in parallel with each other in a straight line. At both ends of the housing 20 in the wiring direction, holding grooves 22 are formed for restricting loose movement by individually fitting the electric wires 11a and 11b.
[0021]
In the housing 20, pressure contact terminal fittings 25a and 25b are arranged. As shown in FIG. 4, each press-contact terminal fitting 25a, 25b has a base 26 that is elongated in a direction perpendicular to the direction in which the twisted wires 10a, 10b, 10c are routed, and upwards at right angles from both ends and intermediate positions of the base 26. It is composed of three press contact blades 27a, 27b, 27c extending, and the space between the adjacent press contact blades 27a, 27b, 27c is the release recesses 28a, 28b opened upward (the release which is a constituent element of the present invention). Part).
[0022]
Four of the press contact terminal fittings 25a and 25b are provided in the same shape and size with respect to one housing 20, and two of them (hereinafter referred to as the first press contact terminal fitting 25a) are parallel to each other and compared. It is located in the upper left of the housing 20 in FIG. Further, the other two sheets (hereinafter referred to as second press-contact terminal fittings 25b) are arranged in the lower right of the housing 20 in FIG. With this arrangement, the press contact blades 27a, 27b, and 27c correspond to the holding grooves 22 in the wiring direction of the twisted wires 10a, 10b, and 10c. Further, in FIG. 3, the escape recess 28a on the upper side of the first press-contact terminal fitting 25a is a second press-contact in the wiring direction of the twisted wires 10a, 10b, 10c (direction perpendicular to the parallel direction of the electric wires 11a, 11b). Corresponds to the uppermost press contact blade 27a of the terminal fitting 25b. Similarly, the center press contact blade 27b, the lower escape recess 28b, and the lowermost press contact blade 27c of the first press contact terminal fitting 25a are respectively connected to the upper release recess 28a and the center of the second press contact terminal fitting 25b. It corresponds to the press contact blade 27b and the lower relief recess 28b.
[0023]
Three covers 29 are provided for one housing 20. Each cover 29 has a length over the entire length of the housing 20 in the wiring direction of the twisted wires 10a, 10b, 10c, as in the first embodiment, but one twisted wire 10a in the parallel direction of the electric wires 11a, 11b. , 10b, 10c are the minimum width necessary to cover only.
Next, the operation of this embodiment will be described.
At the time of press contact, first, one of the two electric wires 11a and 11b constituting the first twisted wire 10a is pressed against the uppermost press contact blade 27a in FIG. 3 of the first press contact terminal fitting 25a. The other electric wire 11b is pressed against the uppermost press contact blade 27a of the second press contact terminal fitting 25b while passing through the relief recess 28a on the upper side of the first press contact terminal fitting 25a. Thereafter, a cover 29 is attached to the housing 20 so as to cover the two wires 11a and 11b that have been press-contacted. Then, the two twisted electric wires 11a and 11b are twisted to form the first twisted wire 10a.
[0024]
Next, in the press-contact of the second twisted wire 10b, one of the two electric wires 11a and 11b is passed through the relief recess 28a on the upper side of the second press-contact terminal fitting 25b, and the first press-contact terminal fitting 25a. The pressure contact blade 27b at the center is pressed, and the other wire 11b is pressed against the pressure contact blade 27b at the center of the second pressure contact terminal fitting 25b while passing through the lower relief recess 28b of the first pressure contact terminal fitting 25a. Then, a cover 29 is attached to the housing 20 so as to cover the two wires 11a and 11b that have been press-contacted, and the two twisted wires 10b are twisted by twisting the two wires 11a and 11b that have been press-contacted. Form.
[0025]
Finally, in the press-contact of the third twisted wire 10c, the first press-contact terminal fitting 25a passes one of the two electric wires 11a and 11b through the relief recess 28b on the lower side of the second press-fit terminal fitting 25b. Is pressed against the lowermost pressure contact blade 27c, and the other electric wire 11b is pressed against the lowermost pressure contact blade 27c of the second pressure contact terminal fitting 25b. Then, a cover is attached to the housing 20 so as to cover the two wires 11a and 11b that have been press-contacted, and the third twisted wire 10c is formed by twisting the two wires 11a and 11b that have been press-contacted. To do.
[0026]
[Other Embodiments]
The present invention is not limited to the embodiment described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.
(1) Although the case where two or three twist lines are jointed has been described in the above embodiment, the present invention can also be applied to the case where four or more twist lines are jointed.
[0027]
(2) In each of the above embodiments, the press contact terminal fittings attached to one housing are all arranged in the same shape and sequentially shifted in the wire parallel direction. However, according to the present invention, a plurality of press contact blades and relief portions are arranged differently. You may combine a kind of press-fit terminal fitting.
(3) In the above embodiment, the press contact blade of another press contact terminal fitting is arranged at a position corresponding to the escape portion in the direction orthogonal to the electric wire parallel direction. The press contact blades may be displaced so as not to correspond in the direction orthogonal to the electric wire parallel direction.
[Brief description of the drawings]
FIG. 1 is a plan view of Embodiment 1. FIG. 2 is a sectional view taken along line XX. FIG. 3 is a plan view of Embodiment 2. FIG. 4 is a sectional view taken along line YY. Explanation of symbols]
10a ... first twist wire 10b ... second twist wire 11a ... electric wire 11b ... electric wire 12 ... housing 15a ... first press contact terminal fitting 15b ... second press contact terminal fitting 17a ... press contact blade 17b ... press contact blade 18 ... relief Concave part (relief part)
19 ... cover 10a ... right twist wire 10b ... middle twist wire 10c ... left twist wire 11a ... electric wire 11b ... electric wire 11c ... electric wire 20 ... housing 25a ... first press contact terminal fitting 25b ... second press contact terminal fitting 27a ... Pressing blade 27b ... Pressing blade 27c ... Pressing blade 28a ... Relief recess (relief part)
28b ... Relief recess (relief part)
29 ... Cover

Claims (2)

For a conductive path in which a plurality of twisted wires formed by twisting a plurality of wires are arranged in parallel, each of the plurality of wires in each twisted wire is individually jointed to a plurality of wires constituting another twisted wire. For making a connection of the form
A housing in which the wires to be jointed can be arranged in parallel;
A plurality of press-contact terminal fittings provided in the housing and provided with a plurality of press-contact blades for press-contacting the electric wires to be jointed in the electric wire parallel direction;
The housing is provided with a cover attached so as to cover the pressure contact terminal fitting and the pressure contact portion of the electric wire,
At least one of the plurality of press contact terminal fittings is configured to ensure an escape portion for routing an electric wire that is not jointed by the press contact terminal fitting between the adjacent press contact blades,
Furthermore, the cover is provided separately for each twisted wire, and the connector is assembled to the housing before a plurality of electric wires constituting each twisted wire are twisted together .   The connector according to claim 1, wherein a press contact blade of another press contact terminal fitting is disposed at a position corresponding to the escape portion in a direction substantially perpendicular to the electric wire parallel direction.

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