JPH055669Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a low insertion/removal force connector that allows connection terminals to be inserted and removed with low insertion/removal force.

[Prior Art] In conventional connectors, due to the fitting force between the connecting terminals built in each of the pair of housings, considerable force is required to fit and separate the housings. The resistance increases as the number of connection terminals in the housing increases.

[Object of the invention] An object of the invention is to eliminate the above-mentioned drawbacks and to provide a low insertion/removal force connector capable of fitting or separating connecting terminals with low insertion/removal force.

[Summary of the invention] The gist of the invention to achieve the above objectives is as follows:
A receiving connection terminal having a movable contact piece for pressure-welding the insertion portion of the insertion connection terminal is fixed in the housing,
A rotatable round bar-shaped braking member is attached to the housing and is inserted in a direction perpendicular to the longitudinal direction of the receiving connection terminal, and the braking member has a notch in its surface into which the free end of the movable contact piece can fit. is provided, and the braking member is rotated to bring the free end of the movable contact piece into contact with the arc-shaped surface or the notch of the braking member, so that the pressure contact force of the movable contact piece can be adjusted; An elliptical protrusion is provided on a part of the braking member, and a columnar locking member made of a soft material and penetrating the housing is installed in the housing so as to be orthogonal to the braking member, and the locking member is provided at approximately the center of the locking member. Inserting the projection of the brake member into the provided hole and rotating the brake member, the free end of the movable contact piece fits into the notch and the lock member is extended by the projection. , a low insertion/removal force connector, characterized in that an end of the locking member protrudes outside from the housing, and is locked with a mating housing by fitting into a part of the mating housing. be.

[Embodiments of the invention] The invention will be described in detail based on illustrated embodiments.

FIG. 1 shows an exploded perspective view of the embodiment, and FIG. 2 shows a longitudinal sectional view. The first housing 1 houses a reception connection terminal 2, and the second housing 3 houses an insertion connection terminal 4. The receiving connection terminal 2 is fixed by a flexible locking piece 1a provided in the first housing 1. Note that the electric wires connected to the connection terminals 2 and 4 are not shown.
A hole 1c that is a combination of a circular hole and an elliptical hole is provided on both side surfaces 1b of the first housing 1, and a round bar-shaped member is partially provided with notches 5a in number corresponding to the number of connection terminals 2, and in the center thereof. A braking member 5 having an elliptical protrusion 5b and a rotary knob 5c at its end is rotatably inserted into the first housing 1 through the hole 1c. In addition, upper and lower surfaces 1d of the first housing 1
A square hole 1e is provided in the hole 1e. A substantially prismatic locking member 6 made of a soft material such as synthetic resin is inserted in the vertical direction into this square hole 1e so as to be perpendicular to the braking member 5, and an elliptical hole 6a provided in the locking member 6 is inserted into the elliptical hole 6a. An elliptical protrusion 5b of the member 5 is inserted. The receiving connection terminal 2 installed in the first housing 1 has a substantially box-shaped connection part for connecting to the insertion part 4a of the mating insertion connection terminal 4, and has a bottom part 2a extending forward. Furthermore, the movable contact piece 2b is folded back into the connecting part, and the ceiling part 2c is formed by bending the bottom part 2a from the side surface to the top surface.
The insertion portion 4a of the insertion connection terminal 4 is
It is designed to be pressure-welded. The free end of the movable contact piece 2b is oriented diagonally, and a protrusion 2d is provided at the tip thereof, and the protrusion 2d can be fitted into the notch 5a of the brake member 5.
Further, a notch 3b into which the shaft portion of the braking member 5 enters is provided in one side surface 3a of the second housing 3, and a corner 3b that matches the square hole 1e of the first housing 1 in the fitted state is provided in the upper and lower surfaces 3c. A hole 3d is provided.

FIG. 2 shows the state before the housings 1 and 3 are fitted, and since the protrusion 2d of the movable contact piece 2b is in contact with the shaft part other than the notch 5a of the brake member 5, the movable contact piece 2b When pressed, the contact force is weakened,
A sufficient gap is provided between the ceiling part 2c and the ceiling part 2c. At this time, the elliptical direction of the elliptical portion 5b of the braking member 5 is oriented in the left-right direction, and the hole 6a of the locking member 6 is expanded laterally as shown in FIG. is reduced and does not protrude outward from the square hole 1e in the upper and lower surfaces 1d of the first housing 1. In this state, the first housing 1
When the is fitted into the second housing 3, the state shown in the longitudinal cross-sectional view of FIG. The pressure contact force is not exerted. This insertion can therefore be carried out with extremely low resistance. Further, the locking member 6 is shortened as shown in the sectional view of FIG.
It does not protrude outward from the

When the fitting is completed, rotate the rotary knob 5c of the brake member 5 in the direction of the arrow as shown in FIG. 6 to the state shown in FIG. 7, and it will move as shown in the cross-sectional view of FIG. 8. The protrusion 2d of the contact piece 2b enters the notch 5a of the braking member 5, and the spring force of the movable contact piece 2b is released, so that the movable contact piece 2b
The pressure contact force is exerted, and the insertion portion 4 of the insertion connection terminal 4
a can be sandwiched between the ceiling part 2c and the ceiling part 2c.
In this state of use, current flows between the connection terminals 2 and 4 with low electrical resistance. Furthermore, when the braking member 5 is rotated, the oval direction of the elliptical protrusion 5b is oriented in the vertical direction as shown in FIG. The housings 1 and 3 are stopped. In this state of use, the connection terminals 2,
A current will be passed between 4.

When separating the housings 1 and 3, when the brake member 5 is rotated using the rotation knob 5c, the protrusion 2d of the movable contact piece 2b comes off the notch 5a and comes into contact with the shaft, resulting in a pressure contact force. The lock member 6 is further contracted and the lock is released. Therefore, the insertion portion 4a is no longer subjected to pressure contact force from the movable contact piece 2b, so no frictional resistance occurs between the connection terminals 2 and 4, and the first housing 1 is connected to the second housing 3.
It can be easily pulled out.

[Effect of the invention] As explained above, the low insertion/removal force connector according to the invention applies pressure contact force of the connection terminal to the insertion portion of the insertion connection terminal after the housings are fitted together, that is, the connection terminals are fitted together. This allows mating to occur with almost no resistance during insertion.
Furthermore, separation can be similarly achieved with low resistance during extraction.

Further, when the housings are completely connected, the housings are completely locked together by the locking member.

[Brief explanation of the drawing]

The drawings show an embodiment of the low insertion/removal force connector according to the present invention; FIG. 1 is an exploded perspective view thereof, FIG. 2 is a vertical sectional view, FIG. Figure 4 is a longitudinal cross-sectional view at the contact terminal position with the control member applied, Figure 5 is a vertical cross-sectional view at the lock member position with the braking member applied, and Figure 6
7 are perspective views of the fitted state, and FIGS. 8 and 9 are longitudinal sectional views corresponding to FIGS. 4 and 5, respectively, of the state in which the braking member is not applied. Symbol 1 is the first housing, 1c is the hole, 1e
is a square hole, 2 is a receiving connection terminal, 2b is a movable contact piece, 2
c is a ceiling part, 2d is a projection, 3 is a second housing, 3d is a square hole, 4 is an insertion connection terminal, 4a is an insertion part, 5 is a braking member, 5a is a notch, 5b is a projection, 5c 6 is a rotating knob, 6 is a locking member, and 6a is a hole.

Claims (1)

[Scope of utility model registration request] A receiving connection terminal having a movable contact piece for press-contacting the insertion portion of the insertion connection terminal is fixed in a housing, and a rotatable circle is inserted into the housing in a direction orthogonal to the longitudinal direction of the receiving connection terminal. A rod-shaped braking member is attached, and the surface of the braking member is provided with a notch into which the free end of the movable contact piece can fit, and the braking member is rotated so that the free end of the movable contact piece is attached to the braking member. The pressure contact force of the movable contact piece can be adjusted by contacting the arc-shaped surface or the notch, and an elliptical protrusion is provided on a part of the braking member, and the braking member is made of a soft material and penetrates the housing. A column-shaped locking member is mounted in the housing so as to be perpendicular to the braking member, and a protrusion of the braking member is inserted into a hole provided at approximately the center of the locking member, and the braking member is rotated. As a result, the free end of the movable contact piece fits into the notch, and the protrusion extends the locking member, causing the end of the locking member to protrude outside from the housing, and a part of the mating housing. A low insertion/removal force connector characterized in that it locks with a mating housing by fitting into the housing.