JPH06314575A - Pressure welding connector - Google Patents

Abstract

PURPOSE:To make high density wiring possible by installing a middle cover which closes the upper part of a lower step, by installing a holding part, in at least one of an upper cover, the middle cover, and a connector main body, and by surely holding in a row plural wires pressure-welded to pressure welding terminals in a difference-in-level part in either one of the connector main body, the middle cover, and the upper cover. CONSTITUTION:To pressure-weld plural wires to a pressure welding connector 21, each wire end is pressure-welded to a pressure welding part 61 of plural pressure-welding terminals 29 arranged on a lower difference-in level part 35, and a wire W is inserted into a wire holding groove 39 to hold the wire W, then the lower difference-in-level part 35 is closed with a middle cover 31, and each wire end is pressure-welded to a pressure welding part 61 of plural pressure-welding terminals 29 arranged on an upper difference-in-level part 33. Similarly, the wire is inserted into a wire holding grooves 57 of the middle cover 31 to hold the wire. After all wires were pressure-welded, the difference-in- level parts 33, 35 are closed with an upper cover 27, and lock arms 45 are locked to a locking groove 43. Plural wires, thereby, can be pressure-welded to the pressure welding connector 21.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press-connecting connector for press-connecting an electric wire to a press-connecting terminal, and more particularly to a press-connecting connector having stepped steps for high-density wiring.

[0002]

2. Description of the Related Art FIG. 15 and FIG.
The pressure contact connector 1 described in Japanese Patent No. 59 is shown. In the figure, the press-connecting connector 1 has a step-like stepped portion 3a, 3b, 3
connector main body 5 provided with c and step portions 3a, 3b,
An upper lid 7 for closing the upper surface side of 3c, and step portions 3a, 3b,
And a plurality of pressure contact terminals 13 each having a pressure contact portion 9 on which the plurality of electric wires W are pressure contacted.
The pressure contact terminal 13 has a terminal portion 11 formed integrally with the pressure contact portion 9. Further, the connector body 5 has a locking projection 5
a is formed on both sides, and the upper lid 7 has locking protrusions 5a, 5a.
Are provided with locking holes 7a, 7a.

In such a pressure contact connector 1, the pressure contact portions 9 of the pressure contact terminals 13 are arranged on the step portions 3a, 3b, 3c at equal intervals in the width direction, and the upper pressure contact portions 9, 9 are arranged.
The pressure contact portions 9 of the lower pressure contact terminals 13 are arranged in a so-called zigzag pattern. By arranging in this way, more electric wires W can be routed to one press-connecting connector.

[0004]

However, in the pressure contact connector 1 described in the above publication, since the wire W is pulled out from the connector body 5 only by being pressed against the pressure contact portion 9, the wire can be freely moved. The electric wire drawn out from the upper pressure contact portion 9 may contact the lower pressure contact portion 9 or may contact the adjacent pressure contact portion 9 in the same step.

Further, if the pitch between the pressure contact portions 9 of the pressure contact terminals is made narrower for high-density wiring, the electric wires will easily come into contact with other pressure contact portions 9. Must have wide gaps so that the wires do not come into contact with the adjacent pressure contact parts. For this reason, the connector main body 5 becomes large in size, and it is difficult to cope with the multilayer structure.

Therefore, an object of the present invention is to provide a press-connecting connector which can prevent the movement of the electric wire drawn out from the press-connecting terminal.

[0007]

In order to achieve the above object, in the invention according to claim 1, a connector main body provided with a plurality of stepped step portions, an upper lid for closing the upper surface side of the step portions, In a press-connecting connector having a plurality of press-connecting terminals having a press-contacting portion arranged on the stepped portion to press-connect an electric wire, an inner lid for closing the upper part of the step portion on the lower stage side is provided, and an upper lid, an inner lid, At least one of the connector main bodies is provided with a holding portion for holding the electric wires pressed against the step portion, and holds a plurality of electric wires in an aligned state on any of the connector main body, the inner lid and the upper lid. .

According to a second aspect of the invention, in the first aspect of the invention, the upper side wire holding portion for holding the electric wire pressed against the step portion on the upper side is formed in the inner lid, and the lower side wire holding portion is formed. It is characterized in that a lower side wire holding portion for holding the wire pressed against the step portion is formed in the connector body.

According to a third aspect of the present invention, in the second aspect of the invention, the upper lid that closes the upper surfaces of the plurality of step portions is locked to the connector body, and the inner lid is on the lower step portion. It is characterized by having a locking means for fixing to.

According to a fourth aspect of the invention, in the first aspect of the invention, the upper-side wire holding portion for holding the electric wire pressed against the upper-side step portion and the lower-side step portion are pressed against each other. It is characterized in that the lower side wire holding portion for holding the wire is formed on the inner lid.

According to a fifth aspect of the present invention, in the first aspect of the invention, the upper-side wire holding portion for holding the wire pressed against the upper-side step portion is formed on the upper lid, and the lower-side step portion is formed. It is characterized in that the lower side electric wire holding portion for holding the electric wire pressure-welded to is formed on the inner lid.

According to the invention described in claim 6,
The invention according to claims 4 and 5 is characterized in that the upper lid and the inner lid have a waterproof function.

[0013]

According to the first aspect of the invention, the electric wire press-contacted to the press-contact terminal of the step portion is held in a holding portion formed in at least one of the upper lid, the inner lid and the connector body, and then aligned in the connector body. Be withdrawn.

According to the second aspect of the present invention, the electric wire press-contacted to the press-contact terminal of the step portion on the upper side is held in the upper-side wire holding portion formed on the inner lid and then pulled out in an aligned state from the connector body. Further, the electric wire press-contacted to the press-contact terminal of the lower step portion is held in the lower electric wire holding portion formed in the connector body and then pulled out in an aligned state from the connector body.

According to the third aspect of the present invention, after closing the step portion on the lower stage side with the inner lid, the step portion on the upper stage side is closed with the upper lid, and the upper lid is locked to the connector main body by the locking means. In addition to being fixed, the inner lid is sandwiched between the upper lid and the connector body and fixed to the step portion on the lower side.

According to the fourth aspect of the present invention, the electric wire press-contacted to the press-contact terminal of the step portion on the upper side is held in the upper-side electric wire holding portion formed on the inner lid and then pulled out in an aligned state from the connector body. In addition, the electric wire press-contacted to the press-contact terminal of the lower step portion is held in the lower electric wire holding portion formed on the inner lid, and then pulled out in an aligned state from the connector body. In this case, the diameter of the wire can be changed only by replacing the inner lid with the upper wire holding portion and the lower wire holding portion corresponding to other wires.

According to the fifth aspect of the present invention, the electric wire press-contacted to the press-contact terminal of the stepped portion on the upper side is held in the upper-side electric wire holding portion formed on the upper lid and then pulled out in an aligned state from the connector body. In addition, the electric wire press-contacted to the press-contact terminal of the lower step portion is held in the lower electric wire holding portion formed on the inner lid, and then pulled out in an aligned state from the connector body. In the invention of claim 6, the pressure contact portion on the step portion is waterproofed by the waterproof function of the upper lid and the inner lid.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a pressure contact connector according to the present invention will be described below with reference to the drawings.

First Embodiment FIG. 1 is an exploded perspective view showing a press contact connector 21 of the first embodiment, and FIG. 2 is a partially broken perspective view. Further, FIG. 3 is a perspective view showing a state in which the electric wire W is routed to the press contact connector 21.

As shown in FIGS. 1 to 3, the press-connecting connector 21 is embedded in the connector body 23, an upper lid 27 connected to one side of the connector body 23 via a hinge 25, and the connector body 23. Pressure contact terminal 29 and inner lid 31
Consists of.

The connector body 23 is in the shape of a rectangular parallelepiped, and has two stepped step portions 33 and 35 formed on the upper surface. In addition, a lower wire holding portion 37 is formed at the end of the lower step 35 on the wire lead-out side. The lower wire holding portion 37 has a plurality of wire holding grooves 39 formed at equal intervals along the width direction of the connector body 23. From both sides of the opening edge of the wire holding groove 39, as shown in FIG. As shown, flexible electric wire pressing pieces 41, 41 are provided in a protruding manner. The electric wire W is pushed into these electric wire holding grooves 39, and as shown in FIG. 5, the electric wire W is held in a snap fit manner. Further, locking grooves 43 are formed on both sides of the lower wire holding portion 37 in the width direction. This locking groove 4
The lock arm 45 of the upper lid 27 is locked at 3.

The upper lid 27 is a stepped portion 3 of the connector body 23.
It is composed of a flat plate-like closing plate portion 47 having a size capable of totally closing the upper portions of 3, 35 and a vertical wall 49 formed over the entire outer periphery of the closing plate portion 47. It is flexibly connected to the side portion of the upper step portion 33 via a hinge 25. The inside of the vertical wall 49 has a waterproof function, and waterproofs the step portions 33, 35 when the step portions 33, 35 are closed.

On the side of the vertical wall 49 facing the connecting portion of the connector body 23, a plurality of electric wire holding portions 51 are formed at equal intervals along the width direction. These wire holding parts 51
From the vertical walls 49 on both sides in the width direction, a lock arm 45 having a locking projection 53 protruding inward at its tip is provided upright. The lock arm 45 and the locking projection 53 constitute the locking means 50 with the locking groove 43 of the connector body 23, and are locked in the locking groove 43 to be locked by the connector body 2.
3 is closed and the inner lid 31 is attached to the connector body 23.
Fixed to.

The inner lid 31 is a flat plate having a thickness corresponding to the step of the lower step 35 of the connector body 23, and has a function of waterproofing the step 35 with the step 35 closed. An upper wire holding portion 55 is formed on the wire lead-out side of the inner lid 31. As shown in FIGS. 4 and 5, this wire holding portion 55 is formed in the same shape as the lower wire holding portion 37, and has a plurality of wire holding grooves 57 formed at equal intervals along the width direction. There is. Further, flexible electric wire pressing pieces 59, 59 are projected from both sides of the opening edge of the electric wire holding groove 57. These electric wire holding grooves 57 hold the electric wires W in a snap fit manner like the electric wire holding grooves 39. This inner lid 31 has a lower step portion 3
The pressure contact terminal 29 of 5 is closed.

The pressure contact terminal 29 comprises a pressure contact portion 61 arranged on the step portions 33 and 35 and a terminal portion 63 housed in the connector body 23. The press contact portion 61 has the step portion 33,
35 are arranged in two rows at equal intervals along the width direction on the 35. These two rows are arranged in a staggered manner so that the pressure contact portions 61 of one row are located between the pressure contact portions 61 of the other row. It is arranged. The press contact portion 61 has a pair of press contact grooves,
The insulating coating material of the electric wire W is peeled off and pressed by the pressing blades on the inner side walls of these pressing grooves, and the electric wire W and the pressing terminal 29 are electrically connected. Further, the terminal portion 63 is a so-called female terminal portion, and a mating terminal (male terminal portion) is fitted therein.

In order to press-connect a plurality of electric wires to the press-connecting connector 21 as described above, first, as shown in FIG. 1, the press-connecting portions 6 of the press-connecting terminals 29 arranged on the lower step portion 35 are arranged.
The end of the wire is pressed onto 1. Then, the electric wire W is inserted into the electric wire holding groove 39 to hold the electric wire W. Next, as shown in FIG. 2, the upper step portion 35 is closed by the inner lid 31.
Then, the wire ends are pressed into contact with the pressure contact portions 61 of the plurality of pressure contact terminals 29 arranged on the upper step portion 33. Similarly, the electric wire is inserted and held in the electric wire holding groove 57 of the inner lid 31.
After pressing all the electric wires, the step portion 33,
By closing the upper part 35 and locking the lock arm 45 in the locking groove 43, a plurality of electric wires W can be pressed into contact with the press contact connector 21, as shown in FIG.

In this state, since the plurality of electric wires are securely held in the connector body 23 and the inner lid 31 in an aligned state, the electric wires pressed against the upper pressure contact terminal 29 come into contact with the lower pressure contact terminal 29. In addition, the electric wire does not come into contact with the left and right press contact terminals 29.

Further, by having such a configuration,
It is possible to reliably prevent the movement of the electric wire W and to set the pitch between the press contact terminals 29 to be narrower, and it is possible to cope with the increase in the number of poles. Further, since the movement of the electric wire W is surely prevented by the inner lid 31, the height (step) between the step portions 33 and 35 can be set low, and the multilayer structure can be realized. Therefore, a higher-density wiring is possible.

Further, by forming the inner lid 31 with a material having a waterproof function (for example, rubber), a pressure contact connector having a waterproof function can be obtained.

Further, when the electric wire W is inserted into the upper-side electric wire holding portion 39 and the lower-side electric wire holding portion 37, the electric wire can be easily inserted only by pushing it into the electric wire holding grooves 39 and 57.

Although the wire holding portions 37 and 55 are provided on both the inner lid 31 and the connector body 23 in this embodiment, they may be formed on at least one of them.

Further, in the above embodiment, the upper lid 27 and the inner lid 3
1 had a waterproof function, but a separate packing was used for the upper lid 2
7 and the inner lid 31, between the inner lid 31 and the step portion 35, and between the upper lid 27 and the step portion 33.

Second Embodiment Next, the press contact connector of the second embodiment will be described. Figure 6
FIG. 8 is an exploded perspective view showing a press-connecting connector 71 of a second embodiment, and FIGS. 7 and 8 are a perspective view and a plan view showing details of the wire holding groove 93. 9 to 12 are perspective views showing a procedure of pressing and assembling the electric wire W to the pressing connector 71. In the first embodiment, the upper wire holding portion 55 is formed on the inner lid 31, and the lower wire holding portion 37 is formed on the connector body 23. However, in this embodiment, the upper wire holding portion 55 is formed on the inner lid 77. It is an example in which the holding portion 91 and the lower-side wire holding portion 101 are formed.

As shown in FIG. 6, the press contact connector 71 is
It includes a connector body 73, an upper lid 75 that closes the upper portion of the connector body 73, a pressure contact terminal 29 embedded in the connector body 73, and an inner lid 77.

The connector main body 73 has a rectangular parallelepiped shape, and has two stepped stepped portions 79 and 81 formed on the upper surface thereof. Also, on the wire lead-out side of the lower stepped portion 79,
A long receiving projection 83 is formed. This receiving projection 83
Locking portions 83a, 83a with which a lock arm 103 of an inner lid 77, which will be described later, engages are formed on both sides of. A locking projection 85 is provided on the side surface of the connector body 73. The locking protrusion 85 engages with the locking arm 87 of the upper lid 75.

The upper lid 75 is formed separately from the connector body 73, and both side walls 75 are formed on both sides of the closing plate portion 74.
locking arms 87 and 8 having locking holes 89 in a and 75a
7 are formed. Further, an electric wire drawing opening 72 through which a plurality of electric wires W are drawn is formed on one surface side between the both side walls 75a, 75a. An inner lid 77 that closes the step portion 79 is sandwiched between the upper lid 75 and the connector body 73.

The inner lid 77 is a flat plate having a thickness corresponding to the step of the lower step 79, and has a function of waterproofing the step 79 when the step 79 is closed. An upper-stage wire holding portion 91 is formed on the upper surface of the inner lid 77 on the stepped portion 81 side. As shown in FIGS. 7 and 8, the upper-side wire holding portion 91 has wire holding grooves 93 formed at equal intervals in the width direction.
And a projection 95 protruding from one inner wall of the wire holding groove 93 and a recess 97 formed in the other inner wall. The opening edge 99 of the wire holding groove 93 is expanded in a tapered shape so that the wire W inserted into the wire holding groove 93 is guided into the wire holding groove 93. Further, the projection 95 protruding from one inner wall of the electric wire holding groove 93 pushes the electric wire W accommodated in the electric wire holding groove 93 into the recess 97 side of the other inner wall as shown in FIG.
It is accommodated in the electric wire holding groove 93 in a bent state.

Further, as shown in FIGS. 6 and 9, on the lower surface side of the inner lid 77 on the wire pull-out side, the lower side on which the wire W pressed by the pressure contact portion 61 of the pressure contact terminal of the step portion 79 is held. The wire holding portion 101 is formed. The lower-side wire holding portion 101 has the same structure as the upper-side wire holding portion 91 described above, and includes a wire holding groove 93, a protrusion 95, and a recess 97. Then, the lower-side wire holding portion 101 abuts on the receiving projection 83, as shown in FIG. 10, in a state in which the lower step portion 79 is closed. Further, lock arms 103, 103 are formed on both sides of the lower wire holding portion 101. These lock arms 103, 103 are provided with receiving protrusions 8
The inner lid 77, which closes the upper part of the lower stepped portion 79 by engaging with the locking portions 83a, 83a on both sides of 3, is fixed to the stepped portion 79, and the pressure contact terminal 13 of the stepped portion 79 is closed.

Since the pressure contact terminal 13 has the same structure as the pressure contact terminal of the first embodiment described above, its explanation is omitted here.

Next, with reference to FIGS. 9 to 12, a procedure for press-connecting a plurality of electric wires W to the press-connecting connector 71 will be described.

First, as shown in FIG. 9, the lower step portion 7
The end portion of the electric wire W is pressed against the pressure contact portions 61 of the plurality of pressure contact terminals 29 arranged in a staggered pattern on the wire 9, and is pulled out from the wire pull-out side. From this state, as shown in FIG.
The upper portion of the step 79 is closed with the electric wire W and the electric wire holding groove 93.
Press and insert into each. Then, the inner lid 77 is brought into contact with the receiving projection 83, and the lock arm 103 is received.
3 engages with the engaging portions 83a on both sides of the inner lid 77 and the inner lid 77
Fix at 9. At this time, since the electric wire W is accommodated in the electric wire holding groove 93 in a bent state (see FIG. 8), the resistance in the axial direction is large and a strong holding force against external force such as tensile force is obtained.

Then, as shown in FIG. 11, the pressure contact portions 61 of the plurality of pressure contact terminals 29 arranged on the upper step portion 81.
Then, the end portion of the electric wire is pressed and pulled out onto the inner lid 77, and the electric wire is pressed and inserted into the electric wire holding groove 93 of the upper side electric wire holding portion 91. At this time, the electric wire W is accommodated in the electric wire holding groove 93 in a bent state, so that the resistance in the axial direction is large and a strong holding force against external force such as tensile force is obtained. Further, since the opening edge portion 99 is expanded in a tapered shape, even if the electric wire W is slightly deviated from the electric wire holding groove 93, the electric wire holding groove 9 is formed.
You will be guided to the center of No. 3. Next, the step portion 81 and the inner lid 7
7 is closed by the upper lid 75, and the locking projection 8 is locked in the locking hole 89.
5 is engaged to fix the upper lid 75 to the connector body 73. Thereby, as shown in FIG. 12, a plurality of electric wires W
Can be pressed against the pressure contact connector 71.

In this state, since the plurality of electric wires W are securely held in the inner lid 77 in an aligned state, the electric wires W pressed against the upper pressure contact terminals 29 may come into contact with the lower pressure contact terminals 29. In addition, the electric wire W does not contact the adjacent pressure contact terminals 29 on the left and right.

Further, with such a structure,
The movement of the electric wire W can be reliably prevented, and the pressure contact terminal 1
It is possible to set the pitch between the three narrower, and it is possible to cope with the multi-pole.

Further, since the movement of the electric wire W is reliably prevented by the inner lid 77, the height between the step portions 79 and 81 (step)
Can be set lower, and multiple layers can be obtained.

Further, according to this embodiment, even if the diameter of the wire to be pressed is changed, it can be dealt with by exchanging only the inner lid 77. Therefore, the connector body 73 and the upper lid 7
Standardization of 5 is possible.

Further, the terminals are divided into upper and lower stages, and after the electric wires are pressure-welded to the pressure-contacting portions of the pressure-contacting terminals in the lower stage, the pressure-contact management at the time of connecting the pressure-contacting upper stage becomes easy.

Third Embodiment Next, the press contact connector of the third embodiment will be described with reference to FIGS.
4 will be described. FIG. 13 is an exploded perspective view showing the press-connecting connector 111, and FIG. 14 is a plan view showing the back surface side of the upper lid 113. The pressure contact connector 111 of the second embodiment is used.
Constituent parts that are the same as those in FIG.

As shown in FIG. 13, the press-connecting connector 111 of this embodiment is also composed of a connector body 113, an upper cover 115, and an inner cover 117, like the press-connecting connector 71 described above.
Step portions 79 and 81 are formed in the connector body 113, and a receiving projection 83 and a locking projection 85 are formed as in the second embodiment.

In addition, as shown in FIG. 14, the upper lid 115 of this embodiment has an upper-stage wire holding portion 119 on the rear surface side wall 7 thereof.
It is formed between 5a and 75a. The upper wire holding portion 119 is the upper wire holding portion 9 of the second embodiment.
As in the case of 1, the electric wire W, which is composed of a plurality of electric wire holding grooves 93, projections 95, and concave portions 97 and is press-contacted to the press-contact portion 61 of the press-contact terminal 29 of the upper step 81, is inserted and held.

As shown in FIG. 13, the inner lid 117 of this embodiment has a receiving groove 121 formed in the upper surface thereof, and the receiving groove 121 has an upper wire holding portion 119 on the upper side of the upper lid 115.
Abut. Further, the inner lid 117 has a lower-side wire holding portion 123 formed on the lower surface side on the wire drawing side.

In order to press-connect a plurality of electric wires W to the press-connecting connector 111 as described above, first, a plurality of electric wires W are press-contacted to the press-contacting portion 61 of the press-contacting terminal 29 on the lower stepped portion 79, and the wire lead-out side Pull out from. From this state, the inner lid 117
The upper portion of the step 79 is closed with the electric wire W and the electric wire holding groove 93.
Press and insert into each. Then, the inner lid 117 is brought into contact with the receiving projection 83, the lock arms 103 are engaged with the locking portions 83 a on both sides of the receiving projection 83, and the inner lid 117 is fixed to the step portion 79. At this time, the electric wire W is connected to the electric wire holding groove 9
Since it is housed in a bent state in 3, the resistance in the axial direction is large and a strong holding force against external force such as tensile force can be obtained.

Then, the ends of the electric wires are pressed against the pressure contact portions 61 of the plurality of pressure contact terminals 29 arranged on the upper step portion 81 and pulled out onto the inner lid 117, so that the upper step portion 81 and the inner lid 117 of the upper step portion 81 are connected. The upper part is closed by the upper lid 115, and the locking protrusions 85 are engaged with the locking holes 89 to allow the connector body 113 to be closed.
The upper lid 115 is fixed to. At this time, the upper stepped portion 81
The electric wire W pressure-contacted to the pressure-contact portion 61 of the upper pressure-contact terminal 29 is
Upper-side wire holding portion 11 formed on the back surface side of the upper lid 115
9 is inserted into the wire holding groove 93. In this case, the electric wire W inserted into the electric wire holding groove 93 has the projection 95 and the concave portion 97.
Since it is bent and accommodated, a strong holding force can be obtained against an external force such as a tensile force in the axial direction.

Also in this embodiment, as in each of the above-mentioned embodiments, since the plurality of electric wires are securely held in the aligned state by the inner lid 117, they are pressed against the pressure contact terminals 29 of the upper step portion 81. The electric wire W does not come into contact with the lower pressure contact terminal 29, and the electric wire W does not contact the left and right adjacent pressure contact terminals 29.

Further, by having such a configuration,
The movement of the electric wire W can be reliably prevented, and the pressure contact terminal 2
It becomes possible to set the pitch between 9 narrower, and it is possible to cope with multi-pole.

Further, since the movement of the electric wire W is surely prevented by the inner lid 117, the height (step) between the step portions 79 and 81 can be set lower, and the multilayer structure can be realized.

[0057]

As described above, according to the first aspect of the invention, the inner lid for closing the upper portion on the lower side is provided, and the holding portion is provided for at least one of the upper lid, the inner lid and the connector body. Therefore, it is possible to reliably hold the plurality of electric wires press-contacted to the press-contact terminals of the stepped portion in the aligned state on the connector body, the inner lid, or the upper lid. Therefore, the electric wire does not come into contact with other pressure contact terminals, the pitch between the pressure contact terminals can be made narrower, and higher density wiring can be achieved. Further, since the upper side wire holding portion is formed on the inner lid, the movement of the wire can be reliably prevented, the height of the stepped portion can be further lowered, and the multilayer structure can be realized.

According to the second aspect of the present invention, the inner lid for closing the upper portion on the lower side is provided, the upper wire holding portion is formed on the inner lid, and the lower wire holding portion is formed on the connector body. It is possible to reliably hold the plurality of electric wires pressed against the pressure contact terminal in an aligned state with the connector body and the inner lid. Therefore, the electric wire does not come into contact with other pressure contact terminals, and the pitch between the pressure contact terminals can be made narrower,
Higher density wiring is possible. Further, since the upper side wire holding portion is formed on the inner lid, the movement of the wire can be reliably prevented, the height of the stepped portion can be further lowered, and the multilayer structure can be realized.

According to the third aspect of the invention, after closing the lower step portion with the inner lid, the upper step portion is closed with the upper lid, and the upper lid is locked to the connector main body by the locking means. While being fixed to the connector body, the inner lid is sandwiched between the upper lid and the connector body and fixed to the step portion on the lower stage side, so that the work of fixing the inner lid to the connector body becomes easy.

According to the invention as set forth in claim 4, since the inner lid for closing the upper portion on the lower stage side is provided, and the upper side wire holding portion and the lower side wire holding portion are formed on the inner lid, they are pressed against the pressure contact terminals. Further, it is possible to securely hold a plurality of electric wires in an aligned state with the connector body and the inner lid. In addition, the wire diameter can be changed by simply replacing it with an inner lid that has an upper-side wire holding portion and a lower-side wire holding portion that are compatible with other wires, and standardization of the connector body and upper lid is possible. .

According to the fifth aspect of the present invention, the inner lid for closing the upper portion on the lower side is provided, and the upper wire holding portion is formed on the upper lid, and the lower wire holding portion is provided on the inner lid. It is possible to reliably hold the plurality of electric wires pressed against the pressure contact terminal in an aligned state with the connector body and the inner lid.
Therefore, the electric wire does not come into contact with other pressure contact terminals, the pitch between the pressure contact terminals can be made narrower, and higher density wiring can be achieved. Further, since the upper side wire holding portion is formed on the inner lid, the movement of the wire can be reliably prevented, the height of the stepped portion can be further lowered, and the multilayer structure can be realized.

According to the sixth aspect of the invention, the pressure contact portion of the pressure contact terminal on each step can be waterproofed by the function of preventing the upper lid and the inner lid.

[Brief description of drawings]

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

FIG. 2 is a partially broken perspective view showing a first embodiment of a press-connecting connector according to the present invention.

FIG. 3 is a perspective view showing a state in which an electric wire is pressed against a press-connecting connector.

FIG. 4 is an enlarged perspective view of a part of a step portion.

FIG. 5 is a sectional view showing an electric wire holding groove.

FIG. 6 is an exploded perspective view showing a second embodiment of the press-connecting connector according to the present invention.

FIG. 7 is an enlarged view of a part of the wire holding groove, (a)
Is a perspective view showing a protrusion protruding from one inner wall, (b)
[Fig. 4] is a perspective view showing a recessed portion protruding from the other inner wall.

FIG. 8 is a plan view showing a state in which an electric wire is accommodated in an electric wire holding groove.

FIG. 9 is a perspective view showing a state in which an electric wire is pressure-welded to a pressure-contact terminal on a lower step portion.

FIG. 10: Press the electric wire to the press contact terminal on the lower step,
It is a perspective view which shows the state which closed this step part with an inner lid.

FIG. 11 is a perspective view showing a state in which an electric wire is pressure-welded to a pressure-contacting terminal on an upper step portion.

FIG. 12 is a perspective view showing a state in which an upper portion of the connector body is closed by an upper lid.

FIG. 13 is an exploded perspective view showing a press-connecting connector according to a third embodiment.

FIG. 14 is a plan view showing the back surface side of the upper lid of the third embodiment.

FIG. 15 is a perspective view showing a conventional pressure contact connector.

FIG. 16 shows a conventional press-connecting connector, which is shown in FIG.
It is a VII line sectional view.

[Explanation of reference numerals] 21, 71, 111 Pressure contact connector 23, 73, 113 Connector body 27, 75, 115 Upper lid 29 Pressure contact terminal 31, 77, 117 Inner lid 33, 35, 79, 81 Step portion 37, 101, 123 Lower stage Side wire holding part 50 Locking means 55, 91, 119 Upper side wire holding part 61 Pressure contact part W Wire

Claims (6)

[Claims] 1. A plurality of connector bodies provided with a plurality of stepped steps, an upper lid closing an upper surface side of the stepped portions, and a press-contact portion arranged on the stepped portion for press-connecting an electric wire. In a press-connecting connector equipped with individual press-connecting terminals,
While providing an inner lid that closes the upper part of the lower step,
At least one of the upper lid, the inner lid, and the connector body
First, a holding portion for holding the electric wire pressed against the step portion is provided to hold a plurality of electric wires in an aligned state on the connector body, the inner lid, or the upper lid. . 2. The invention according to claim 1, wherein an upper side wire holding portion for holding an electric wire pressed against the step portion on the upper side is formed on the inner lid, and is pressed against the step portion on the lower side. A pressure contact connector characterized in that a lower-side electric wire holding portion for holding an electric wire is formed on the connector body. 3. The lock device according to claim 2, wherein an upper lid that closes upper surface sides of the plurality of step portions is locked to the connector body, and the inner lid is fixed to the lower step portion. A press-connecting connector having: 4. The invention according to claim 1, wherein an upper wire holding portion holds an electric wire press-contacted to an upper step portion, and a lower side electric wire holds an electric wire press-contacted to a lower step portion. A press-connecting connector, wherein an electric wire holding portion is formed on the inner lid. 5. The invention according to claim 1, wherein an upper wire holding portion for holding an electric wire press-contacted to the step portion on the upper side is formed on the upper lid, and the electric wire press-contacted to the step portion on the lower side is formed. A press-connecting connector, wherein a lower wire holding portion for holding is formed on the inner lid. 6. The invention according to claim 2, 4, 5,
The press-connecting connector, wherein the upper lid and the inner lid have a waterproof function.