JPH0945383A - Pressure contact connector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reliably perform pressure contact connection by a compact means by arranging pressure contact edges different in height in a first case, placing branch line electric wires on low side pressure contact edges, and arranging electric wire depressing pieces to trunk line electric wires held in the other case. SOLUTION: In a pressure contact connector, two terminals 10 are installed on an inside bottom surface of a first case 20. The tips of a pair of branch line electric wires 30 are placed on low side pressure contact edges 12b. In a second case 40, two trunk line electric wires 50 are pushed in notches 42a. The trunk line electric wires 50 cross at right angles to electric wire pressing-down pieces 43 and 44, and L-shaped projections 44a are put in a condition of striding over the trunk line electric wires 50. When the first case 20 and the second case 40 are opposed to each other and are united together, the branch line electric wires 30 and the trunk line electric wires 50 overlap each other. High side pressure contact edges 12a in the terminals 10 are pushed against the trunk line electric wires 50, and are connected in pressure contact. The branch line electric wires 30 on the low side pressure contact edges 12b are pressed against surfaces of the pressure contact edges 12b by the L-shaped projections 44a, and are connected in pressure contact.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure contact connector, and more particularly to a pressure contact connector that holds a plurality of pressure contact blades by opening them in the same direction.

[0002]

2. Description of the Related Art Conventionally, in this type of pressure contact connector, a terminal having a pressure contact blade is arranged so as to be orthogonal to two pressure contact wires arranged in parallel, so that a slit-shaped pressure contact blade is parallel to a flat metal plate. Is formed. Here, the respective pressure contact blades are formed at the same height, and when a plurality of sets of electric wires are pressure contact connected, they are arranged side by side in a row.

[0003]

In the above-described conventional press-connecting connector, the electric wires to be press-connecting are arranged in a row in the lateral direction, so that the wire as a whole has to be wide. The present invention has been made in view of the above problems, and an object thereof is to provide a press-connecting connector that can be made more compact.

[0004]

In order to achieve the above object, the invention according to claim 1 has a terminal provided with pressure contact blades having different heights in a straight line in the axial direction of the pressure contact wire, and having an opening on one surface. A first case for accommodating the terminal with the pressure contact direction facing the same opening direction and for accommodating the end of the branch line electric wire to the pressure contact blade on the lower side, and the opening of the first case can be covered. And
The main wire is housed so as to be pressure-welded to the high-side press contact blade of the terminal, and the branch line at the projecting end of the main wire that straddles the main wire and faces the low-side press contact blade. And a second case having an electric wire pressing piece that comes into contact with the electric wire.

The invention according to claim 2 is the same as claim 1.
In the press-connecting connector according to item 3, the wire pressing piece projects from the inner surface of the second case in a substantially inverted L shape so as to accommodate the trunk wire inside and to contact the branch wire outside the protruding end. Is configured.

[0006]

In the invention according to claim 1 configured as described above, since the pressure contact blades having different heights at the terminals are provided in a straight line in the axial direction of the pressure contact wire, the pressure contact blade is connected to the lower pressure contact blade. The branch line electric wire and the main line electric wire which is press-contacted to the press-contact blade on the higher side overlap each other. On the other hand, after the terminal is housed in the first case so that the pressure contact direction faces the opening direction, the end of the branch line electric wire is placed on the lower pressure contact blade to cover the opening of the first case. The main wire is housed in the second case, facing the pressure contact blade on the higher side of the terminal. In the second case, since a portion of the main wire facing the lower pressure contact blade is provided with a wire pressing piece that straddles the main wire and abuts the branch wire at its protruding end, the second case When the lid is covered from above the case, the main wire housed in the second case faces the pressure contact blade on the higher side of the terminal housed in the first case, and the branch wire housed in the first case is low. Facing the protruding end of the wire pressing piece that is inserted from above while being placed on the pressure contact blade on the side. Then, when the second case is pushed further, the main wire is pushed into the pressure-contact blade on the higher side and pressure-connected, and the branch wire is pushed into the pressure-contact blade on the lower side at the protruding end of the wire pressing piece to perform pressure-contact connection.

Further, in the invention according to claim 2 configured as described above, the wire pressing piece is formed so as to project from the inner surface of the second case in a substantially inverted L shape, and is formed inside the hook shape. The trunk electric wire is housed and faces the branch electric wire and abuts on the outside of the protruding end.

[0008]

As described above, according to the present invention, the main line electric wire and the branch line electric wire are superposed on each other and pressure-connected to each other. It is possible to make it compact compared to the case where it is installed side by side in a row, and instead of pushing the overlapping branch line wires into the pressure contact blade with the main wire, it is pressed into the pressure contact blade with the wire pressing piece that straddles the main wire, so the branch wire It is possible to provide a press-connecting connector capable of surely press-connecting without incomplete pressing.

According to the second aspect of the invention, the wire pressing piece that straddles the main wire is formed in an L shape, and the shape is simple and the wire can be easily attached and detached.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a press-connecting connector according to an embodiment of the present invention. In the same figure, the terminal 10 has slits cut out at both ends of a strip-shaped strip 11 to form pressure contact blades 12a and 12b, and the pressure contact blades 12a and 12b have a substantially U-shaped cross section.
The part is bent up. Here, of the pressure contact blades 12a and 12b bent and raised, the pressure contact blade 1 on the back side in the drawing is shown.
2a is formed to be higher than the pressure contact blade 12b on the front side, and the pressure contact blades 12a and 12b have different heights.

In this embodiment, a strip-shaped strip 11 is used.
Terminals 10 are formed by bending both ends of the wire differently, but in order to press and connect the electric wires to be connected under pressure to each other, the press contact blades 12a, 12
It suffices that b is formed, and the two press contact blades 12a, 12
It suffices that b is formed so as to have different heights and to be overlapped on the axis of the press-contact wire. Therefore, FIG.
Both press contact blades 12a and 12b may be the ends of the curved strips as shown in Fig. 3, or in the directions orthogonal to each other as shown in Fig. 3 in addition to being parallel to the axial direction in the slit forming direction. It does not matter even if it is formed.

The terminal 10 is housed in a box-shaped first case 20 having an opening on one side. The first case 20 is formed in a substantially dish shape, and notches 21a, 21 for leading out the branch line electric wire 30 are provided on one standing wall 21 in the lateral direction.
a is formed. As shown in FIG. 4, the notches 21a and 21a are formed in the groove portion 2 into which the branch wire 30 can be pushed.
1a1 is formed, and slits 21a2 and 21a2 are formed on both sides so as to sandwich the groove 21a1. As shown in FIG. 5, when the branch wire 30 is pushed in, the walls on both sides of the groove 21a1 are bent toward the slits 21a2 and 21a2, so that the branch wire 30 can be elastically held. In this embodiment, such slits 21a2 and 21a2 are formed,
As shown in FIG. 6, small protrusions 21a3, 21a3 protruding inward are formed at the opening end of the groove 21a1, and the branch wire 30 is forcibly inserted against the small protrusions 21a3, 21a3 when inserting. After insertion, the small protrusion 21a
It is also possible to prevent 3,3a3 from catching on the branch wire 30 and easily coming off.

Further, the terminal 10 is the first case 2 concerned.
Pressure contact blades 12a, 12 in a state parallel to the longitudinal direction of 0.
The strip plate piece 11 connecting b is locked to the inner bottom surface of the first case 20 and fixed. In this embodiment,
As shown in FIG. 7, the opposite L-shaped locking claws 22a and 22a sandwich and lock both side edges of the strip plate piece 11. However, as shown in FIG. Board 11
May be made narrower and grooves 23a, 23a may be formed so that the bent lower ends of the pressure contact blades 12a, 12b can be pushed and fixed. Here, the two press contact blades 12
Of the a and 12b, the lower pressure contact blade 12b is located on the side of the notches 21a and 21a, and as shown in FIG. 1, the tip end portion of the branch wire 30 is placed on the same pressure contact blade 12b. While being pushed, it can be pushed and held in the notch 21a. In the longitudinal walls 24, 24 in the longitudinal direction of the first case 20, lock arms 24a, 24a are formed by extending in a central portion in a loop shape, and one surface is opened like the first case 20. When the second case 40 thus made faces the first case 20 and is united, the second case 40 can be locked with the lock projections 41, 41 formed on the side wall surface of the second case 40.

Similarly to the first case 20, the second case 40 is also formed in a substantially dish shape, and the standing walls 4 in the lateral direction facing each other.
Cutouts 42a, 42a for passing the main wire 50 through the main wire 50 are formed in 2, 42. The notches 42a and 42a can be elastically held when the trunk wire 50 is pushed in, like the notches 21a and 21a shown in FIGS.
0 is the pressure contact blades 12a, 12b in the second case 40.
It is held so that it is orthogonal to.

Electric wire pressing pieces 43, 44 are formed on the inner bottom surface of the second case 40 at positions facing the pressure contact blades 12a, 12b of the terminal 10 when combined with the first case 20. Of these, the wire pressing piece 43 facing the pressure contact blade 12a on the higher side is oriented in a direction orthogonal to the main wire 50, and is separated from the two ridge walls 43a and 43a that are formed to be separated by the thickness of the pressure contact blade 12a. Thus, as shown in FIG. 9, the main wire 50 can be placed on the upper surface. On the other hand, the electric wire pressing piece 44 facing the pressure contact blade 12b on the lower side is composed of two L-shaped projections 44a and 44a formed to project in an inverted L shape, and the projecting end on the tip side is the same as the above convex wall 43a. In addition, they are arranged orthogonally to the main wire 50 and parallel to each other with a thickness of the same press contact blade 12b therebetween. Since it has an inverted L shape, a recessed portion is formed on the inner side, and as shown in FIG. 10, the main wire 50 can be straddled by this portion. At the four corners of the opening facing the first case 20 in the second case 40,
Four positioning guides 45 each having a prismatic shape are provided upright, and when the second case 40 faces the first case 20 and is united, the positioning guides 45 are respectively inserted into the four corners of the opening in the first case 20. It is supposed to be positioned. That is, if the four positioning guides 45 are accommodated in the first case 20, the press contact blades 12a, 12b.
Is pressed against the electric wire at a regular position.

In this embodiment, the lower pressure contact blade 12
The electric wire pressing piece 44 protruding toward b is formed by the inverted L-shaped L-shaped projections 44a and 44a.
It suffices that it protrudes toward the pressure contact blade 12b on the lower side so as to straddle the above, and it may be formed by a mere slanted wall or the like other than the L shape. Further, it is not always necessary to be integrally formed with the second case 40, and it may be attached so as to cover the main wire 50 with a separate U-shaped cover. However, the L-shaped protrusion 44a has a simple shape and is easy to manufacture.

Next, the operation of this embodiment having the above configuration will be described. The two terminals 10 are mounted on the inner bottom surface of the first case 20. The lower side pressure contact blade 12b of the terminal 10 is attached to the notch 21 formed in the standing wall 21.
The first case 20 is made so as to face the side a.
It is locked by the locking claw 22a formed on the inner bottom surface of the. While placing the tips of the pair of branch line electric wires 30 on the press contact blades 12b, 12b, the branch line electric wires 30 are cut out 21 of the upright wall 21.
When pushed into a and 21a, the peripheral wall portion in each notch 21a bends and is elastically held.

On the other hand, in the second case 40, two sets of notches 42a, 42a formed in the standing walls 42, 42 facing each other so as to cross the second case 40 and the two main line electric wires 50 are cut. Push into the notches 42a, 42a. When the main wire 50 crosses the second case 40, the main wire 50 is orthogonal to the two wire pressing pieces 43 and 44, and the two ridge walls 4
The wire holding piece 43 made of 3a is placed as it is, and the wire holding piece 4 made of the L-shaped projections 44a, 44a.
As for No. 4, the L-shaped protrusion 44 is pushed inwardly.
It is assumed that a is straddling the main wire 50.

That is, when viewed from the opening side of the second case 40, the main wire 50 of the wire holding piece 43 is located on the opening side of the wire holding piece 43, and the main wire 50 of the wire holding piece 44 is the same. Wire holding piece 44
It is located on the side opposite to the opening. next,
When the first case 20 and the second case 40 in which the branch line electric wire 30 and the trunk line electric wire 50 are thus arranged face each other and are combined with each other, the branch line electric wire 30 and the main line electric wire 50 overlap each other, and the wire holding piece 43 The pressure contact blade 12a on the higher side of the terminal 10 is pressed against the main wire 50 and pressure-connected as shown in FIG. 9, and the wire pressing piece 44 is placed on the pressure contact blade 12b on the lower side of the terminal 10. The branch line electric wire 30 is pressed against the press contact blade 12b by the L-shaped projection 44a protruding in an inverted L shape, and is press connected as shown in FIG.

As described above, in the terminal 10, the two pressure contact blades 12a and 12b are made to have different heights so as to be pressure-contacted to the respective wires in a state where the wires to be pressure-contacted are overlapped, and the terminals 10 are overlapped on the axis of the pressure-contact wire. In the first case 20 accommodating the terminal 10, the branch line electric wire 30 is formed on the lower pressure contact blade 12b.
In the second case 40 on the other side, the main wire 50 is held at a position facing the pressure contact blade 12a on the higher side and the main wire 50 is crossed at a position facing the pressure contact blade 12b on the lower side. Since the wire pressing piece 44 protruding toward the same pressure contact blade 12b is thus provided, the first case 20
When the second case 40 and the second case 40 face each other and are combined, the pressure contact blade 12a on the higher side is pressed against the main wire 50,
The pressure contact blade 12b on the lower side holds the branch wire 30 against the wire holding piece 4
Press and connect to 4 and press-connect. Branch line electric wire 30
Since the main wire 50 and the main wire 50 are overlapped with each other and arranged in the horizontal direction, the overall width can be reduced and the size can be reduced, and the wire pressing piece 44 that straddles the main wire 50 overlaps the press contact blade 12b. The electric wire 30 can be pressed to ensure pressure contact connection.

[Brief description of drawings]

FIG. 1 is a perspective view of a press-connecting connector according to an embodiment of the present invention.

FIG. 2 is a development view showing a modified example of the terminal.

FIG. 3 is a development view showing a modified example of the terminal.

FIG. 4 is a partially enlarged front view showing a state of the notch of the first case before the electric wire is inserted.

FIG. 5 is a partially enlarged front view showing a state after the electric wire is inserted in the notch of the first case.

FIG. 6 is a partially enlarged perspective view of a modification of the notch of the first case.

FIG. 7 is a partially enlarged perspective view showing a mechanism for holding a terminal in the first case.

FIG. 8 is a partially enlarged perspective view showing a modified example of the mechanism for holding the terminal in the first case.

FIG. 9 is a cross-sectional view showing a relationship between one electric wire pressing piece and a press contact blade.

FIG. 10 is a cross-sectional view showing the relationship between the other wire pressing piece and the press contact blade.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Terminal 11 ... Strip plate piece 12a, 12b ... Pressure contact blade 20 ... First case 21 ... Standing wall 21a ... Notch 21a1 ... Groove part 21a2 ... Slit part 21a3 ... Small protrusion 22a ... Locking claw 23a ... Groove 24 ... Standing wall 24a ... Lock arm 30 ... Branch line electric wire 40 ... Second case 41 ... Lock projection 42 ... Standing wall 42a ... Notch 43 ... Electric wire pressing piece 43a ... Convex wall 44 ... Electric wire pressing piece 44a ... L-shaped projection 50 ... Main wire

Claims (2)

[Claims] 1. A terminal provided with pressure contact blades having different heights in a straight line in an axial direction of a pressure contact electric wire, an opening on one surface of the terminal for accommodating the terminal with the pressure contact direction facing the same opening direction, and a lower side. A first case for accommodating the end portion of the branch line electric wire to the press contact blade of (1) and an opening of the first case can be covered, and the press contact blade on the higher side of the terminal can be press connected. A second case that houses the main wire and that has a wire pressing piece that abuts the branch wire at its projecting end across the main wire at a portion facing the pressure contact blade on the lower side of the main wire. A press-connecting connector, comprising: 2. The press-connecting connector according to claim 1, wherein the wire pressing piece is protruded from the inner side surface of the second case in a substantially inverted L shape to accommodate the main wire inside and the protruding end outside. The press-connecting connector, which is in contact with the branch line electric wire.