JP2508269Y2 - connector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a connector, and more particularly to a latch-lock type connector having improved grounding performance.

[Prior Art] A conventional connector has a shell 31,
It is composed of a barrel 32, an insulator 33, a ground terminal 34, and a contact 35. That is, the insulator 33 having the contact 35 is inserted into a metal barrel, which is further inserted into a metal shell 31, and these shell 31, barrel 32, and insulator 33,
The ground terminal 34 and the ground terminal 34 are connected to each other by a fixing screw 36 and mechanically fixed. Positioning when assembling the shell 31 and the barrel 32 is performed by providing a groove 37 in the shell 31 and a protrusion 38 in the barrel 32.

[Problems to be Solved by the Invention] In the prior art, the fixing screw 36 was often loosened or forgotten. As a result, the mechanical fixation becomes unstable, the electric connection between the shell 31 and the barrel 32 becomes imperfect, and the shell 31 and the barrel 32 do not have the same potential. In addition, the connection between the shell 31 or barrel 32 and the ground terminal 34 will be incomplete, and the ground performance will deteriorate. On the other hand, in the above-mentioned positioning when assembling the shell 31 and the barrel 32, the dimensional accuracy of the parts must be increased in order to improve the positional accuracy. However, since the barrel 32 is formed by deep drawing, it is very difficult to improve the dimensional accuracy.

It is an object of the present invention to provide a connector having improved grounding performance and a simpler assembly process.

[First Means and Actions for Solving the Problem] In the present invention, the above-mentioned object is to integrally form a shell and a barrel, and to provide an opening on a side surface near a rear portion thereof. A shell member provided with a stop portion that projects inward in the direction, an insulator that is inserted into the shell member, and has a groove formed on the side surface that extends rearward from a portion corresponding to the opening of the shell member,
A fixed terminal which is integrated with the ground terminal, is press-fitted into the opening of the shell member, projects into the groove of the insulator to fix both the shell member and the insulator, and is electrically connected to the shell member. This is achieved by a connector comprising

Since the shell member in which the shell and the barrel are integrated is used as described above, the step of assembling the shell and the barrel is not necessary. Further, the fixed terminal integrated with the ground terminal is securely mechanically and electrically connected to the shell member by being press-fitted into the opening of the shell member, and the fixed terminal press-fitted into the groove of the insulator. It projects and thus the insulator is fixed. Since the shell member and the fixed terminal are connected by press fitting,
The ground performance is improved.

[Second Means and Action for Solving the Problem] In the present invention, the above-mentioned object is also that the shell and the barrel are integrally formed, and a groove is provided on the inner side surface near the rear part. A shell member provided with a stop portion projecting inward in the axial direction at the front, an insulator having a concave portion on the side surface, which is inserted into the shell member, and in which a fixing clip is arranged at a position corresponding to the groove, and a ground terminal This is achieved by a connector which is integrated and has a protruding portion corresponding to the groove on a side surface thereof, is inserted into a concave portion of the insulator, and has a fixing clip which elastically contacts with and fixes the both.

Also in this configuration, since the shell member in which the shell and the barrel are integrated is used, the step of assembling the shell and the barrel is not necessary. Further, the fixing clip integrated with the ground terminal is securely mechanically and electrically connected to the shell member by being inserted into the recess of the insulator, and the inserted fixing clip fixes the insulator to the insulator. Since it is elastically interposed between the shell member and the shell member, each component is reliably connected and the grounding performance is improved.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a shell member 11, an insulator 13, and a contact.
A connector 10 of a first embodiment according to the present invention, which comprises a fixed terminal 15 and a fixed terminal 15, is shown, and the state in which the respective parts are disassembled is shown in FIG. The shell member 11 is formed by integrating a conventional shell and barrel, and has an annular wall portion 18 protruding inward at an intermediate position in the axial direction and a tubular portion 19 extending forward from the inner periphery thereof. have. The annular wall portion 18 in this embodiment also serves as a stop portion for stopping the forward movement of the insulator 13. Further, the opening 12 is provided on the side surface behind the annular wall portion 18. The fixed terminal 15 is formed of a metal body and is integrated with the ground terminal. The fixed terminal 15 corresponds to the shell member 11
The opening 12 has a size substantially equal to that of the opening 12 so as to be press fit. The outer diameter of the insulator 13 is a diameter that fits in the tubular portion 19 of the shell member 11 in the front portion, and the step portion 17 that contacts the rear surface of the annular wall portion 18 is formed in the rear portion thereof to increase the diameter. The inner diameter of the shell member is made substantially equal to that of the shell member. Further, a groove portion 16 extending from the position of the opening 12 of the shell member 11 toward the rear end portion when the insulator 13 is inserted into the shell member 11 is formed on the side surface of the insulator 13. The contacts 14 are arranged in the holes of the insulator 13 by a method similar to the conventional technique.

Next, the assembling method will be described with reference to FIG. The insulator 13 is formed in the shell member 11 with the opening 12 and the groove.
It is inserted so as to correspond to the front portion of 16, and then the fixed terminal 15 is press-fitted into the opening 12 of the shell member 11. Fixed terminal 15
Is sized and shaped to be mechanically fixed to the periphery of the opening 12 by press fitting, and is reliably mechanically connected to the shell member 11. Since the fixed terminal 15 comes into contact with the front wall portion of the groove portion 16 of the insulator 13 by being press-fitted, the fixed terminal 15 serves as a stopper in the rearward direction in which the insulator 13 is about to come out, and the insulator 13 is removed from the shell member 11. It cannot be pulled out. Further, in the forward direction, the inner annular wall portion 18 of the shell member 11 prevents the shell member 11 from projecting from the front surface.
A reliable ground connection is obtained between the shell member 11 and the ground terminal that is mechanically and reliably fixed in the front-rear direction and is integrated with the fixed terminal. (Further, by making the width of the groove 16 slightly smaller than the width of the opening, the fixed terminal 15 can be press-fitted between the side walls of the groove 16 to further increase the mechanical coupling strength.) The shell member 11 There are a plurality of (eg 3
It is convenient for the plating process to provide vertical through holes 19 '.

Further, the shell member 11 may not have a shape having the annular wall portion 18 and the tubular portion 19 as described above, but may have a substantially cylindrical shape having only a stop portion for stopping the forward movement of the insulator 13. In some cases, the insulator 13 also has a step 17
It becomes a substantially columnar shape with no.

Next, a second embodiment according to the present invention is shown in FIGS. 3 and 4. FIG. 3 shows the connector 10 of the second embodiment consisting of the shell member 21, the insulator 23, the contact 14, and the fixing clip 25, and FIG. 4 shows the state in which the respective parts are disassembled. The shell member 21 has substantially the same structure as that of the first embodiment, but the shell member 21 is used instead of the opening 12.
It is provided on the inner side surface of 21. Instead of the fixed terminal 15 of the first embodiment, a fixed clip 25 is used in this embodiment, which is made of an elastic metal body and is a ground terminal.
A projecting portion 26, which is integrated with 27 and which corresponds to the groove 22 for fixing the insulator 23 and the shell member 21, is provided on the side surface (see FIG. 4). Insulator 23
Since the recess 28 for accommodating the fixing clip 25 is formed in the fixing member 25, when the insulator 23 is inserted into the shell member 21, the fixing clip 25 is accommodated in the recess 28, and the protruding portion 26 of the shell member 21. Engage in groove 22.

Next, the assembling method will be described with reference to FIG. When the insulator 23 is inserted into the shell member 21 to a position in front of the recess 28, and then the fixing clip 25 is fitted into the recess 28 and further inserted, the protruding portion 26 is formed in the groove 22 corresponding to the groove 22 of the shell member 21. Engage. The fixing clip 25 is configured such that when the step portion 28 of the insulator 23 comes into contact with the inner annular wall portion 29 of the shell member, the projecting portion 26 thereof is located in the groove on the inner side surface of the shell member, and is projected at the time of insertion. The portion 26 is pushed by the shell member so as to be flush with the other portions of the fixing clip 25, but elastically returns outward at the portion of the groove 22 and elastically comes into contact with the shell member to ensure reliable electrical operation. Make contact. Since the projecting portion 26 functions as a stopper in the groove 22 in the direction in which it is about to come out further, the insulator 23 cannot be pulled out from the shell member 21 thereafter, and in the forward direction, the stopper portion on the inner surface of the shell member 21 is removed. The double-sided annular wall portion 29 prevents the shell member 21 from protruding from the front surface, so that the shell member 21 is mechanically and reliably fixed in the front-rear direction. Even if the groove 22 is a penetrating opening, there is no problem if the protruding portion 26 can be engaged. Further, after the fixing clip 25 is fixed in the groove, the elastic force of the protruding portion 26 exerts a pressing force in the radial direction on the shell member 21 and the insulator 23, so that the earthing terminal 27 and the shell member 21 are securely connected to each other. A good ground connection can be obtained.

By integrating the shell and barrel in this way, it is no longer necessary to assemble the shell and barrel, which was difficult to position, and the fixed terminal integrated with the ground terminal has a smaller cross-sectional dimension at the rear of the insulator. It is possible to easily assemble it integrally by locating it on the stepped portion and inserting it into the shell member. On the other hand, when the shell member and the insulator are fixed to each other, the fixed terminal integrated with the ground terminal is used, so that the mechanical coupling between the respective components is surely performed, so that the ground performance is improved.
Further, according to the above structure, since the number of parts at the time of assembly is small, the cost is low and the manufacturing process is easy.

[Advantages of the Invention] The connector constructed according to the present invention as described above has a simple structure and is easy to assemble, and the coupling of the assembly is mechanically reliable and stable, and the grounding performance is also improved. To do.

[Brief description of drawings]

FIG. 1 is a sectional view of a connector according to a first embodiment of the present invention. FIG. 2 is an exploded view for explaining the embodiment in FIG. FIG. 3 is a sectional view of the connector of the second embodiment according to the present invention. FIG. 4 is an exploded view for explaining the embodiment in FIG. FIG. 5 is an exploded view of a conventional connector. 10 …… Connector, 11, 21 …… Shell member, 12 …… Opening, 1
3,23,33 …… Insulator, 14,35 …… Contact, 15
...... Fixed terminal, 16 ...... groove,, 28 ...... concave, 17 ...... step, 18,29 ...... annular wall, 19 ...... cylindrical part, 22 ...... groove, 2
5 …… Fixing clip, 26 …… Projection part, 27 …… Ground terminal, 31 …… Shell, 32 …… Barrel, 34 …… Ground terminal,
36 …… fixing screw, 37 …… groove, 38 …… protruding part.

Claims (2)

(57) [Scope of utility model registration request] 1. A shell and a barrel are integrally formed,
An opening is provided on the side surface near the rear portion, and a shell member provided with a stop portion that projects inward in the axial direction in front of the opening, and is inserted into the shell member and corresponds to the opening of the shell member. An insulator having a groove formed on its side surface and extending rearward from the portion; and an earth terminal, formed integrally with the insulator, press-fitted into the opening of the shell member, projecting into the groove of the insulator, and the shell member And a fixed terminal that fixes both of the insulator and is electrically connected to the shell member. 2. A shell and a barrel are integrally formed,
A shell member provided with a groove on the inner side surface near the rear part and provided with a stop portion projecting inward in the axial direction in front of the groove, and a position inserted into the shell member and corresponding to the groove An insulator having a concave portion on its side surface and an earth terminal are integrally formed, and a protruding portion corresponding to the groove is provided on the side surface, and is inserted into the concave portion of the insulator to elastically contact and fix both. Connector with a securing clip.