JPH0122226Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to the improvement of pressure contact type terminals used as external terminals or relay terminals of meters, etc., and particularly improves the alignment and fixing effect of the conductive lead wire and the electrical connection state at the pressure contact conduction part. It relates to pressure contact type terminals that provide stability.

Pressure contact terminals are already known in which a cut groove is provided in the terminal body and a covered lead wire is press-fitted into the cut groove to achieve connection and conduction. However, since conventional pressure contact terminals do not have the function of arranging and fixing the lead wires, they have the disadvantage that the area around the terminals is cluttered and workability is poor, and the electrical connection state at the pressure contact conductive part is poor. It was unstable and had problems with reliability against vibrations, etc.

Therefore, in the present invention, a wire straightening groove is recessed into the side plate of the terminal body so that the lead wire can be securely fixed in a non-conducting state before reaching the pressure welding conduction part, and the lead wire is fixed in the wire straightening groove. It is an object of the present invention to provide a pressure contact type terminal in which the tip of a lead wire is guided to a pressure contact conduction part so as to be substantially orthogonal to the terminal, and conduction is achieved in an electrically stable state.

EMBODIMENT OF THE INVENTION Hereinafter, the specific structure of this invention is demonstrated in detail based on the illustrated Example.

In the figure, 1 is a terminal body consisting of a front plate 2, a back plate 3, and left and right side plates 4, 4. The upper part of the terminal body 1 is a part for connecting and conducting the lead wire 5, and the lower part is an insulating plate. (not shown), etc. Note that a through hole 6 for attachment is bored in the attachment portion.

As shown in FIGS. 1 and 5, the front plate 2 has a wide guide notch 7 at the top for guiding the lead wire 5.
A narrow groove 8A smaller than the diameter of the lead wire 5 is formed at the lower part of the guide notch 7A so as to be connected to the guide notch 7A. As shown in FIGS. 2 and 5, the back plate 3 is
Located opposite the front plate 2,
A guide notch 7B and a narrow notch 8 corresponding to the guide notch 7A and the narrow notch 8A provided on the front plate 2
B is provided.

Since the terminal main body 1 in this embodiment is manufactured by punching and pressing a metal plate, the back plate 3 is separated at the center, but only the lower part is connected, and a gap 9 is provided only at the upper part. Of course, the back plate 3 may also be configured as shown in FIG. Also,
In the illustrated embodiment, two guide notches and grooves are provided on each of the front plate 2 and the rear plate 3, but it is also possible to make a pressure contact terminal with only one system, or conversely, two guide notches and grooves are provided on each of the front plate 2 and rear plate 3. More than one system, for example three systems,
Terminal body 1 with four guide notches and grooves
It is also good to do so.

Note that the terminal main body 1 in this embodiment has no particular directionality, and is provided with a front plate 2 and a back plate 3 for convenience, but either plate surface may serve as the front surface. Furthermore, in this embodiment, since the kerf grooves 8A and 8B are located opposite to each other with a predetermined interval, it is also possible to establish electrical conduction through both the kerf grooves 8A and 8B, or by connecting only one of the kerf grooves 8A and 8B. Electrical conduction may be achieved using only the cut grooves.

The left and right narrow side plates 4, 4 connecting both ends of the front plate 2 and the back plate 3 have wire alignment grooves 1 extending downward from the upper ends and capable of fixing lead wires 5 in a non-conducting state.
0 and 10 are recessed. It is preferable that the recessed depth of the wire straightening groove 10 is set to be somewhat deeper than the recessed depth of the cut grooves 8A and 8B, and the width of the wire straightening groove 10 is set so that the coating of the lead wire 5 to be inserted therein will not be peeled off. The width is such that the lead wire 5 can be fixed.

Additionally, reference numeral 11 in the figure is a gap provided at the center of the upper part of the front plate 2.

The pressure contact type terminal of the present invention has the above-mentioned structure, and the tip of the lead wire 5 to be connected is connected to the straight wire provided on the left and right side plates 4, 4 of the terminal body 1, as shown in FIG. After passing through the grooves 10, 10, bend the tip of the lead wire 5 and insert it into the guide notch 7.
A, 7B, and in this state use your hands or a screwdriver to cut the cut groove 8 as shown in Figure 5.
It is press-fitted into A and 8B. Therefore, the lead wire 5 is firmly fixed by the wire straightening groove provided in the terminal body before connection and conduction, and the tip of the lead wire is press-fitted so as to be almost perpendicular to the fixed lead wire. Since the wire is guided to the terminal and conduction is achieved, the area around the terminal is neat and workability is improved, the electrical connection is extremely stable, and reliability against vibrations etc. can be significantly improved. be. Further, since the lead wires are fixed in a crosswise manner by the wire alignment grooves and cut grooves formed in the terminal body, there is also the advantage that they will not come off even if a tensile force is applied in any direction.

[Brief explanation of the drawing]

The drawings show one embodiment of the pressure contact type terminal of the present invention, and Fig. 1 is a front view, Fig. 2 is a rear view, Fig. 3 is a side view, Fig. 4 is a plan view, and Fig. 5 is a diagram showing the connection process. FIG. 1: Terminal body, 2: Front plate, 3: Back plate, 4:
Side plate, 5: Lead wire, 6: Through hole, 7A, 7B:
Guide notch, 8A, 8B: Cut groove, 9: Interval, 1
0: Linear groove, 11: Gap.

Claims (1)

[Scope of utility model registration request] A front plate formed with a guide notch for guiding the lead wire and a narrow groove connected to the guide notch, which is located opposite to this front plate, and has a guide notch provided in the front plate and a narrow groove formed in the front plate. It consists of a back plate having a guide notch corresponding to the wide cut groove and a narrow cut groove, and left and right narrow side plates connecting both ends of the front plate and the back plate, and the both side plates A wiring groove is recessed downward from the upper end of the housing to allow the lead wire to be fixed in a non-conducting state, and the lead wire to be connected is first inserted through the wiring groove and the lead wire is fixed. , guide the tip of the lead wire to the guide notch provided in the back plate and the front plate so as to be almost perpendicular to the fixed lead wire, and push the lead wire into the groove connected to the guide notch to establish continuity. A press-contact type terminal characterized by: