JPH02224292A - Terminalless wire connector - Google Patents

Abstract

PURPOSE:To lower the production cost by using a naked wire section of a wire to be connected directly as a terminal. CONSTITUTION:A wire K whose front end coat k is peeled is inserted through the through hole 13 of a connector body 1 and the front end of a naked wire (s) is made to stick out from the end surface of a boss 14. The length of the naked wire section (s) is set beforehand at this time so that the front end of the naked wire (s) slightly sticks out. Thereafter, the wire K is bent and fitted to a groove 10 at right angles to the groove 10. An engagement body 2 is pressed and engaged into the connector body 1, and the wire K is bent and held between these bodies 1, 2. At the same time, the posture in which the front end of the naked wire (s) sticks out slightly from the end surface of the boss 14 is kept. This projecting end of the naked wire (s) is used as an output terminal. Thus, the production cost can be lowered.

Description

[Detailed Description of the Invention] <Industrial Field of Application/ The present invention applies to various electrical devices!・It is an electric wire connector used to connect multiple glues and electric wires.
Use the wire itself without using a connection terminal at the end of the wire or inside the connector! The present invention relates to a terminalless electric wire connector that is used as an F-contact terminal member, and in which the electric wire insertion direction and the output direction are bent in two angles.

<Prior art> Conventionally, this type of electric wire connector has a metal terminal embedded in the tip of the gauze for receiving crimp-connected terminals to prevent accidental connections such as bottle terminals. It is formed by

Particularly, in the case of electric wire connectors for L-shaped connection in which the insertion direction and the output direction of electric wires are perpendicular to each other, metal terminals for receiving electric wire terminals have been indispensable.

<Problems to be Solved by the Invention> Therefore, conventionally, as described above, a terminal for receiving and electrically connecting a terminal crimp-connected to the end of a wire is embedded in the connector body. Since this metal terminal needs to be manufactured and insert processing into the connector body is required, there is a problem in that the manufacturing cost is high. In addition, a terminal is required for attachment to the end of the electric wire, and the attachment requires work, which inevitably increases the overall cost.

Therefore, in order to solve such conventional drawbacks, the present invention does not embed any metal terminals in the connector body, and therefore does not require terminals for embedding or any means for embedding. The main object of the present invention is to provide a new electric wire connector in which the covered electric wire itself as a lead wire can be directly used as an output terminal of the connector.

Means for Solving the Problems> The structure of the present invention for achieving the above object will be explained based on FIGS. 1 to 9 corresponding to the embodiments. A groove (10
)... are arranged in parallel, and a fitting body (2) that is fitted and fixed to the connector body (1). It is provided with a presser part (21) that presses the upper part of the covered end (k) of the covered electric wire (K) fitted into the groove (10) when the main body (1) is fitted into the groove (10). 10) are vertical through holes (13) arranged in parallel on the connector body (1).
The through holes (13) are connected to cylindrical bosses (14) protruding from the lower surface of the connector body (1).
..., and the upper part of the through hole (13) is formed in a size that allows insertion of the covering part (k) of the covered electric wire (K), and the lower part is formed into a size that allows the covering part (k) of the covered electric wire (K) to be inserted. It is formed to have a small diameter so as to allow the bare wire (3) portion that is not to be removed to pass through, but prevent the covering end (k) from passing through, thereby allowing the bare wire to pass through from the tip surface of the cylindrical boss (14). 1(s) is formed so that its tip is slightly exposed.

<Function> Since the present invention has such a configuration, the electric wire (2) whose tip has been stripped of its coating is pushed through the through hole (13) of the connector body (1), and the bare electric wire (2) is inserted. The tip portion is made to protrude from the tip surface of the boss (14). At this time naked electric II
(s) so that the tip of the wire (s) protrudes a little.
Set the length of the part s). After this, bend the electric wire (K) at a right angle toward the edge (10) and fit it into the groove (10), and attach the fitting body (2) to the connector body (1). By press-fitting the wires (into) these picture bodies (1)
, (2) and at the same time, the bare electric wire (9)
The tip of the boss (14) is maintained in a position where it slightly protrudes from the tip surface of the boss (14). The tip of this protruding bare electric wire (s) is used as an output terminal.

<Example> The present invention will be described in detail below based on the drawings.

As shown in FIGS. 1 to 9, the electric wire connector according to the present invention includes a connector body (1) and a connector body (1).
A fitting body (2) that is fitted and fixed to (1),
The connector body <1) and the fitting body (2) are both injection molded from synthetic resin material, and have a rectangular shape.
) are integrally connected via a hinge portion <5) so as to be freely foldable.

The connector body (1) has a proximal end (1).
1) toward the hinge part (5), there are five wire sheathing parts (k) and fitting grooves (10) arranged in parallel in the longitudinal direction.
... is formed. Furthermore, when the fitting body (2) is fitted to the connector body (1), the presser part (21) presses the upper part of the covered end (k) of the covered electric wire (in) fitted into the groove 10). ). Furthermore, the groove (1
0)... are respectively communicated with vertical through holes (13) arranged in parallel in the connector body (1). This through hole (13) is opened at the tip of a cylindrical boss (14) formed protrudingly on the lower surface of the connector body 1), and is opened at one end (13 m) of the through hole (13). ) is formed to a size that allows insertion of the covering part (k) of the covered electric wire (K),
The lower part (13b) is formed to have a small diameter so as to allow the bare wire (s) from which the sheath has been removed to pass through, but to prevent the sheathed end (k) from passing through. A tapered part (13e) is formed between the lower part (13a) and the lower part (13b), so that the tip of the bare electric wire (8) can be smoothly connected to the lower part (13b) with a small diameter.
b).

Further, as shown more clearly in FIG. 1, the face plate means of the connector body (1) and the fitting body (2) are formed by an engaging protrusion (12) formed on the connector body (1)... engages with the engagement recess M (22) formed in the fitting body (2), and both (
1) and (2) are combined.

Furthermore, the lower ends of both longitudinal ends of the connector body (1) are provided with fitting holes (
Hooked locking protrusion (16) that fits into P, ), (
16) is formed.

Peel off the coating on the tip of such a wire connector body (1) and insert Q5 wires <K) into the through holes (13) of the connector body (1). Insert and bare; make the tip of the wire (!) protrude from the tip of the boss (14). At this time, adjust the length of the IT wire (9) in advance so that the tip of the bare wire (s) protrudes slightly. , then bend the electric wire (K) at right angles toward the groove (10), fit it into the groove (10), and press-fit the fitting body (2) into the connector body (1). By this, the electric wire (K) is held bent between these objects (1) and (2), and at the same time, the tip of the bare electric wire (9) is kept in a position slightly protruding from the tip surface of the boss (14). thirst,
The groove (10) and the 113! If a raised weir (17) is provided between the L hole (13), the wire (K) can be firmly held between the connector body (1) and the mating body (2), preventing the wire from being pulled out. It is possible to do so with certainty.

Further, most of the bare electric wire (s) is covered and protected by a cylindrical boss (14), and only the tip portion thereof is protected by the boss (14).
4) Since the wires protrude slightly from the tip surface, the strands of the bare electric wires (s), which are made by collectively connecting many thin wires, will not come loose and become dirty, and this will prevent the printed circuit board (P.
) can be reliably soldered.

To attach the connector with wires connected in this way to the printed circuit board (P), insert the locking protrusions (18) and (16) of the connector body (1) into the fitting holes (Pl) of the printed circuit board (P). and the printed circuit board (P) at the same time.
Insert and attach the boss (14) of the connector body (1) into the connection hole (P,) formed in the connector body (1). And the boss (14)
Electrical connection is made by soldering (w) the bare T4 wire (8) slightly protruding from the tip of the wire to the printed wire (p>) formed on the back side of the printed circuit board (P).

In this embodiment, the connector body (1) and the fitting body 2) are a single member integrally connected via the hinge part (5), but these bodies (1) ( 2) may be formed as separate bodies and may have a structure in which they fit relative to each other.

The above embodiments are merely explanations of typical embodiments of the present invention, and the present invention is not necessarily limited to the structure of the above embodiments. 1 within the range that achieves the purpose of and has the following effects! ! This is a program that can be modified and implemented as needed.

<Effects of the Invention> As detailed above, the present invention does not use any terminals such as metal terminals or connectors in the connector, and uses the bare wire portion of the electric wire to be connected directly as a terminal. In terms of manufacturing, only the connector body needs to be made of synthetic resin material, and as it is an integrally molded product, mass production is extremely easy and inexpensive, and there is no need for burying terminal parts during molding or for any subsequent assembly process. Therefore, manufacturing costs can be significantly reduced, and in addition, there is no need to connect oil terminals to the ends of the electric wires used, so the process of manufacturing the terminals and connecting them to the ends of the electric wires is reduced. Since this is not necessary, the overall cost can be further reduced. Moreover, since the wire insertion direction and the output terminal side are bent at right angles, the wire will not easily come out even if an external force is applied to the wire in the withdrawal direction.

In particular, in the present invention, most of the bare wires of the electric wires to be connected are covered and protected by a cylindrical boss protruding from the bottom surface of the connector body, and only the tip portion thereof is slightly protruded from the boss tip surface. This has the remarkable effect that the strands of bare electric wires formed by collectively connecting a large number of thin wires do not come loose and become messy, and that soldering to printed circuit boards can be easily and reliably performed.

[Brief explanation of the drawing]

FIG. 1 is an overall perspective view showing an embodiment of the present invention together with connected electric wires, FIG. 2 is a plan view thereof, and FIG.
The figure is an end view taken along the line ■-■ in Figure 2, Figure 4 is a sectional view taken along the line ■-■ in Figure 2, and Figure 5 is the ff-N of Figure 2.
6, 7, and 8 are sectional views showing the state of connection to the printed circuit board over time, and FIG. 9 is a sectional view taken along the line.
It is a sectional view along the ff-ff line in the figure. In the figure, (1) is the connector body, (2) is the mating body, (10
) is a groove, (13) is a through hole, (14) is a boss, (21)
is the holding part, (ni) is the electric wire, (k) is the covering part of the electric wire, (8
) is the bare end of the wire. Figure 1 [Figure 13 Figure 4 Figure 3b

Claims (1)

[Claims] (1) A groove into which the covered end (k) of the covered wire (K) fits (
10) The connector body (1
), and a fitting body (2) that is fitted and fixed to the connector body (1), and the fitting body (2) is formed in the groove (10) when it is fitted to the connector body (1). It is provided with a holding part (21) that presses the upper part of the covered end (k) of the covered wire (K) fitted into the connector body (1), and the groove (10) is provided with a vertical groove (10) arranged in parallel with the connector body (1). Through hole (13
)..., and the through hole (13) is a cylindrical boss (14) protrudingly formed on the lower surface of the connector body (1).
)... is opened at the tip and has a through hole (13)
The upper part (13a) is the covering part (k) of the covered electric wire (K)
The lower part (13b) has a small diameter so as to allow the bare wire (s) from which the covering of the covered wire (K) has been removed to pass through, but to prevent the covered end (k) from passing through. The terminalless electric wire connector is formed such that the tip of the bare electric wire (s) is slightly exposed from the tip surface of the cylindrical boss (14).