JP3680166B2 - connector - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of cable connectors.
[0002]
[Prior art]
Conventionally, a cable connector attached to the tip of a cable has a contact as a socket contact, and an electrical contact is obtained by inserting a pin contact of a mating connector into the socket contact.
[0003]
The connection between the cable connector contact and the cable is made up of a crimping portion for holding and holding the cable together with the coating, and a portion for pressing the core wire with the coating pressed against the contact.
When the connector and the cable are multi-core, each contact and the cable connected thereto are aligned in the connector housing.
[0004]
[Problems to be solved by the invention]
However, in the case of the multi-core connector described above, each core wire is positioned with respect to each contact at the time of crimping and pressure welding between each contact and each cable, but since the cable itself is not rigid, everything is completely It does not necessarily become the same position and the same direction, and if it is crimped or pressed in that state, the spacing between adjacent cables may vary, or a portion where the cables are not parallel may occur.
[0005]
As a result, there is a problem in that the mutual impedance between the cables varies, and there is a portion where the crosstalk between the cables exceeds a specified value.
When the cable is a coaxial cable, the shape of the outer conductor with respect to the center conductor is deformed from the concentric circle in the portion to be crimped together with the covering, but if there is variation in the positioning of the cable with respect to the contact, the deformation method There is a problem that the characteristic impedance varies, and as a natural result, the characteristic impedance varies.
[0006]
In addition, since the contact with the mating contact is made by inserting the pin contact into the socket contact, the pin contact is pushed in until reaching the dead end after contacting the socket contact, so there is inevitably sliding friction between the two. , Thereby producing a metal powder.
[0007]
Further, even if the optimum fitting position is before the dead end, there is a problem that useless sliding friction is easily performed, that is, pushing from the psychology for obtaining a reliable fitting to the dead end.
[0008]
An object of the present invention is to provide a contact method that eliminates the need for crimping and crimping of a contact and a cable as in the prior art, and that hardly causes sliding friction with a counterpart contact, in view of the problems of the prior art. It is to provide an adopted cable connector.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the first configuration (basic configuration) of the cable connector of the present invention includes the following means.
(A) A first contact having an outer peripheral tip conductor that protrudes from the outer periphery of the cross section of the wire-shaped contact conductor as viewed from the rear side of the contact conductor. (B) One or more first contacts 1st insulator which maintains alignment (c) It is a plate-shaped conductor which has elasticity, and has a notch | incision of the width | variety which the diameter of the said contact conductor enters but the diameter of a front-end | tip conductor does not enter, and a contact conductor enters this notch | incision The second conductor that is in contact with the tip conductor and is brought into elastic contact by applying a pulling force to the contact conductor in the rearward state. (D) Second insulator for aligning and holding one or more second contacts
(E) Contact conductor tension applying portion for applying a force to pull back the contact conductor to the contact conductor.
The second configuration is a locking mechanism in which, in the first configuration, the first insulator holds the first contact so that the first contact can slide forward and backward, and holds the state when the first contact is retracted. It is a connector which has.
[0011]
A third configuration is a connector according to the first configuration or the second configuration, wherein the first contact is a wire whose contact conductor is a wire and a solder ball is a tip conductor.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
In the connector according to the present invention, in the first configuration described in the above problem solving means, the connector on the cable side is configured by the configuration (A) and the configuration (B), and the mating connector is configured by the configuration (C) and the configuration (D). Is configured.
As an embodiment of the present invention, the mating connector may be a fixed connector fixed to a device / apparatus or the like, or a cable connector attached to the tip of a cable.
[0013]
In the connector of the present invention, the contact conductor of the contact (first contact) of the cable side connector is brought into the notch of the contact (second contact) of the mating connector, and the contact conductor is pulled in the longitudinal direction, and attached to the tip. Since the outer periphery of the tip conductor is larger than the width of the notch, it is caught at the notch, and the second contact is a plate-like conductor and has elasticity. Therefore, the tip conductor of the first contact and the second contact Elastic contact is obtained between them.
[0014]
As described above, after the contact between the first contact and the second contact is brought into contact with the tip conductor and the second contact, the contact pressure between the two increases only by the force of pulling the first contact. There is almost no sliding friction between the second contact and the tip conductor.
Therefore, there is no problem of wear or metal dust generated due to sliding friction.
[0015]
In addition, the shape of the contact conductor of the cable-side connector is not particularly limited, and may be a wire shape. In that case, the core wire of the cable can be used as it is as a contact conductor. This eliminates the need for crimping and crimping cable cores to contacts, such as cable connectors, eliminating the need for the work process, as well as non-uniform spacing between the cores and misalignment of the cores due to crimping and crimping. Problems in the prior art such as uneven impedance and crosstalk are eliminated.
[0016]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a partial perspective view showing a fitting state of the connector of the present invention.
A contact conductor 5 hangs downward from the guide groove 9 of the first insulator 2, and a tip conductor 6 such as a solder ball is attached to the tip thereof. The contact conductor 5 is pulled upward with a constant force in a state in which the hanging portion of the contact conductor 5 enters the cut 7 of the second contact 3 fixed to the second insulator 4.
Since the diameter of the tip conductor 6 is larger than the width of the notch 7, it is caught by the notch 7.
[0017]
Since the second contact 3 is a plate-like conductor having elasticity, the second contact 3 is warped upward by the pulling force of the contact conductor 5 and electrical contact with the tip conductor 6 is obtained. .
As shown in FIG. 3, the contact conductor 5 in this embodiment is a conductor from which the covering of the cable 11 has been removed.
In FIG. 1, the portion of the cable 11 is omitted.
[0018]
FIG. 2 is a diagram illustrating a state before the contact portion is fitted.
Before the mating, the hanging contact conductor 5 is positioned by cutting the guide plate 8 provided in the first insulator 2 so as to be slidable in the left-right direction. The cut 7 is entered.
[0019]
Therefore, the lateral position of the guide plate 8 is set so that the cut position just faces the cut 7 of the second contact 3, and the vertical position is a position close to the position where the second contact 3 is rubbed. Is provided.
[0020]
The guide plate 8 is retracted in the first insulator 2 after the first contact 1 and the second contact 3 are fitted. In FIG. 1, since it is a fitting state, the guide plate 8 is pulled rightward and is shown in the first insulator 2.
[0021]
FIG. 4 is a perspective view of the connector of the present invention in the case of 6 cores.
The second insulator 4 has six second contacts 3 embedded therein that have notches 7 and are integrated with the terminals 10.
The first insulator 2 is provided with six guide grooves 9 at the top of the inclined portion, and the contact conductors 5 are respectively suspended.
[0022]
A cable holder 12 that sandwiches the cable 11 from above and below is placed on the right side of the inclined portion, and the contact conductor 5 protrudes from the cable holder 12. A holder holder 13 is provided so as to hold the cable holder 12 from above. The holder presser 13 is fixed to the first insulator 2 by presser locks 17 on both sides.
[0023]
The structure of the cable holder 12 is as shown in FIG. That is, it is composed of a cable holder upper side 12a and a cable holder lower side 12b, each of which has a cable groove 18 with a semicircular cross section with a diameter for each sheath of the cable 11 and a semicircular cross section with a diameter of only the cable conductor 5 with the sheath stripped. As shown in the figure, the cable 11 and the contact conductor 5 are fitted into the cable holder lower side 12b, and the cable holder upper side 12a is covered from above.
[0024]
Eventually, there is a step at the boundary between the cable groove 18 and the conductor groove 19, and when the cable holder is pulled rearward (upward obliquely in FIG. 5), the pulling force is applied to the contact conductor 5.
[0025]
In this way, the cable holder 12 holding the cable 11 and the six contact conductors 5 is placed on the first insulator 2, the contact conductor 5 is hung on the guide groove 9, and in this state, the holder presser 13 is connected to the cable holder. 12 is to be pressed.
[0026]
As shown in FIG. 6, the retaining fin 13 is provided on the lower surface of the holder press 13 with elasticity so as to press the upper surface of the cable holder upper side 12 a. 16 is provided.
On the other hand, on the upper surface of the cable holder upper side 12a, there is provided a locking rise 14 consisting of a left upward inclined portion and a vertical portion.
[0027]
By having such a structure, when the cable holder 12 is pulled rightward, the tip of the locking fin 15 is gradually pushed up, and when the locking rising 14 reaches the locking hole 16, the locking rising 14 is engaged. Since the end of the locking fin 15 is lowered so as to fit in the stop hole 16, the lock rising 14 is caught in the lock hole 16, and the cable holder 12 moves to the left even if the cable holder 12 is pulled to the right. It will be locked so as not to return.
[0028]
With the structure as described above, when the left and right connectors of FIG. 4 are fitted as shown in FIG. 1 and the cable holder 12 is pulled to the right until it is locked, the contact conductor 5 is suspended. The portion is pulled up, and the tip conductor 6 and the second contact 3 come into elastic contact.
[0029]
This contact hardly causes sliding friction as in the case where the pin contact is inserted into the socket contact as in the prior art.
In this embodiment, the cable holder 12 is slid as a means for applying tension to the contact conductor, but is not limited to this.
[0030]
【The invention's effect】
In the connector of the present invention, since the cable conductor itself can be used as a contact conductor, there is no need for crimping or pressure contact for connecting the cable or the conductor and the contact as in the prior art, and the cable can be aligned. Therefore, there is an advantage that the problems of variations in impedance and crosstalk due to variations in the distance between cables and unevenness due to crimping and pressure welding are eliminated.
[0031]
Also, since the contact with the mating contact is an elastic pressure contact, there is no sliding friction when inserting a conventional pin contact into a socket contact, so contact wear and generation of metal powder accompanying wear There is an advantage that the problem is completely eliminated.
[Brief description of the drawings]
FIG. 1 is a partial perspective view showing a fitting state of a connector of the present invention.
FIG. 2 is a partial perspective view showing a state of the connector of the present invention before the contact portion is fitted.
FIG. 3 is a perspective view for explaining that the conductor of the cable is a contact conductor.
FIG. 4 is a perspective view of the connector embodiment of the present invention in the case of 6 cores.
FIG. 5 is a perspective view illustrating the structure of a cable holder in the connector of the present invention.
FIG. 6 is a cross-sectional view illustrating a cable holder locking mechanism in the connector of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 1st contact 2 1st insulator 3 2nd contact 4 2nd insulator 5 Contact conductor (cable conductor)
6 Lead conductor 7 Notch 8 Guide plate 9 Guide groove 10 Terminal 11 Cable 12 Cable holder 12a Cable holder upper side 12b Cable holder lower side 13 Holder presser 14 Locking rise 15 Locking fin 16 Locking hole 17 Pressing lock 18 Cable groove 19 Conductor groove

Claims (3)

A connector having the following configurations.
(A) A first contact having an outer peripheral tip conductor that protrudes from the outer periphery of the cross section of the wire-shaped contact conductor as viewed from the rear side of the contact conductor. (B) One or more first contacts 1st insulator which maintains alignment (c) It is a plate-shaped conductor which has elasticity, and has a notch | incision of the width | variety which the diameter of the said contact conductor enters but the diameter of a front-end | tip conductor does not enter, and a contact conductor enters this notch | incision The second conductor that is in contact with the tip conductor and is brought into elastic contact by applying a pulling force to the contact conductor in the rearward state. (D) Second insulator for aligning and holding one or more second contacts
(E) Contact conductor tension applying portion that applies a force to pull back the contact conductor to the contact conductor   The connector according to claim 1, wherein the first insulator includes a locking mechanism that holds the first contact so that the first contact can be slid forward and backward, and holds the state when the first contact is retracted.   3. The connector according to claim 1, wherein the first contact is a wire whose contact conductor is a wire and a solder ball is a tip conductor.

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