JPH0660077U - Connector plug - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a connector plug that can be downsized and have multiple cores with high reliability and that has sufficient locking strength. [Structure] The connector plug 1 includes an insulator 4 in which a plurality of signal contacts 41 are arranged side by side, and a hood 3 which is composed of a pair of hood pieces and in which the insulator 4 is partially housed and sandwiched between the ends. . The insulator 4 is arranged such that the positions of the connection portions of the plurality of signal contacts 41 are offset from each other between the signal contacts adjacent to each other with respect to the mating direction with the mating connector and the direction orthogonal to the mating connector. Of the reverse insertion prevention key portion notched on both sides of the fitting surface and a hook portion adjacent to the reverse insertion prevention key portion for hooking and locking the mating connector. And a stop spring. The hood 3 and the insulator 4 are fixed by press-fitting the convex portion and the concave portion in the sandwiching direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a connector plug which is mainly provided in a mobile phone or the like and is used for connection with a mating connector.

[0002]

[Prior art]

 Conventionally, as this type of connector plug, one having a structure as shown in FIGS. 6 (a) to 6 (e) show connector plugs 100 as an example thereof in plan views from respective directions. The connector plug 100 includes a cable support piece 120 for a cable connected to itself, a hood 130 formed by combining a pair of hood pieces in two, and an insulator partially attached to the hood 130. 140 and a grip piece 150 fixed to both sides of the hood 130.

Since the connector plug 100 handles a large number of signals, a large number of signal contacts 141 are provided inside the insulator 140, as shown in FIGS. 7A to 7C. These signal contacts 141 are usually arranged side by side vertically and horizontally within the insulator 140 as shown in the figure. In addition, a connection portion (solder point) 141a that is a wide portion is formed at the end of each of these signal contacts 141, and wiring from the cable is connected to this connection portion 141a by soldering. A coaxial cable 142 for other signals is inserted into the cylindrical hole 142 formed in the insulator 140.

On the other hand, referring to FIG. 8 (a), on the mating surface of the insulator 140 with the mating connector, a key portion for preventing reverse insertion at the time of mating with the mating connector (hereinafter, (Referred to as anti-locking key portion) 144 is formed, and on both sides of the insulator 140, referring to FIGS. 2A and 2B, a locking portion that functions as a locking portion at the time of fitting thereof. A spring (lock spring) 143 is fixed.

In the case of the locking spring 143 shown in FIGS. 8A and 8B, a pair of hook portions 143 a protruding from the side surface of the insulator 140 are engaged with corresponding recesses of the mating connector. Depending on the insulator 140, as shown in FIGS. 9A and 9B, a spherical catching portion 143b formed in the central portion of the locking spring 143 may be used.

The insulator 140 is fitted at the end portions of the pair of hood pieces forming the hood 130 [lower end portions in FIG. 1B]. In this case, conventionally, as shown in FIG. 10, a method of sandwiching the insulator 140 from above and below by a pair of hood pieces and fixing one of the hoods 130 with a screw 160 [see FIG. 6 (d)] is generally used. It has been adopted.

[0007]

[Problems to be solved by the device]

 By the way, with the recent miniaturization and higher performance of mobile phones and the like, there is a tendency that the connector plugs used therein are required to be further downsized and have multiple cores. In the case of miniaturizing connector plugs and increasing the number of cores in this way, for example, for signal contacts, miniaturizing the connector itself is problematic in terms of mechanical strength, etc. A method is adopted in which the mutual spacing is made finer to make it smaller.

However, this method also has a limit, and it may not be possible to provide a necessary and sufficient space between signal contacts. That is, if the mutual spacing of the signal contacts is made too small, the connection parts on the adjacent signal contacts become very close to each other, which may cause the connection parts to come into contact with each other, and soldering etc. in the manufacturing process. There is a problem that the workability of is deteriorated.

Further, if there is a sufficient space on the fitting surface of the insulator, the layout of the reverse insertion prevention key portion can be freely performed, and the locking spring can also be made sufficiently large, but this contributes to downsizing of the connector. As a result, if there is not enough room in the fitting surface of the insulator, it may not be possible to provide the reverse insertion prevention key part of the required size. In this case, it is possible to downsize the locking spring by providing the reverse insertion prevention key part, but if this is done, the connection between the hooking part of the locking spring and the spring part will be poor, and as a result, the locking spring will be locked. There is a problem that the locking strength (lock strength) of the spring itself is reduced.

Further, although the thickness of the hood must be reduced due to the miniaturization of the connector, the bending rigidity of the hood is reduced as this thickness is reduced. In such a case, fitting the connector plug to the mating connector not only makes it easier to open between the pair of hood pieces that make up the hood, but also causes the hood to be insufficiently secured to the insulator, causing the connector to come off the hood. There is a risk that

The present invention has been made to solve such a problem, and its technical problem is to achieve miniaturization and multi-core reliability with high reliability, and a connector plug having sufficient locking strength. To provide.

[0012]

[Means for Solving the Problems]

 According to the present invention, it includes an insulator in which a plurality of signal contacts are arranged in parallel, and a hood that is formed by combining a pair of hood pieces and partially holds the insulator between the one ends of the pair of hood pieces. In the connector plug, the insulators are arranged so that the positions of the connection parts of multiple signal contacts are offset between the signal contacts that are adjacent to each other with respect to the mating direction with the mating connector and the direction orthogonal to this. At the same time, the reverse insertion prevention key portion is formed by cutting out both sides of the mating surface with the mating connector, and is provided adjacent to the reverse insertion prevention key portion, and hooks the mating connector. A connector plug having a locking spring having a substantially L-shaped cross section including a hooking portion for stopping is obtained.

According to the present invention, in the above connector plug, the connector plug in which the hood and the insulator are fixed by press-fitting the convex portion and the concave portion in the sandwiching direction can be obtained.

[0014]

[Action]

 In the connector plug of the present invention, the signal contacts are arranged side by side with respect to each other in such a manner that the signal contacts are brought close to each other in order to achieve a small size and a sufficient space is provided between the wire connections. The signal contacts are arranged so as to be offset from each other. Also, in order to prevent reverse insertion when miniaturizing the connector plug and maintain the required locking strength, both sides of the mating surface of the insulator with the mating connector are cut out to prevent the reverse insertion key. A locking spring having a substantially L-shaped cross section is provided adjacent to the reverse insertion prevention key portion and includes a catching portion for rattling to lock and lock the mating connector. Furthermore, even if a thin hood with weak mechanical strength is used, the hood and the insulator have a press-fitting fitting structure between the convex portion and the concave portion so that the fixing of the hood and the insulator is stable.

[0015]

【Example】

 Hereinafter, the connector plug of the present invention will be described in detail with reference to the drawings with reference to embodiments.

1 (a) to 1 (e) show a connector plug 1 according to an embodiment of the present invention in plan view in each direction. This connector plug 1 is also a cable support piece 2 for a cable to be connected to itself, a hood 3 formed by combining a pair of hood pieces divided in two, and an insulator partially mounted in the hood 3. 4 and a gripping piece 5 fixed to both sides of the hood 3.

The cable support piece 2 is made of an elastic synthetic resin or the like, and supports a cable (not shown) connected to the connector plug 1. The hood 3 is constructed by fixing a pair of hood pieces divided into two by screws 6 with a cable supporting piece 2 at one end and an insulator 4 at the other end. ing. That is, in this state, the hood 3 partially holds and holds the insulator 4 between one ends of the pair of hood pieces, and partially holds and holds the cable support piece 2 between the other ends of the pair of hood pieces.

As shown in FIGS. 2 (a) to 2 (c), the insulator 4 has two signal contacts 41 in the vertical direction, and a plurality of signal contacts 41 are arranged in parallel in the horizontal direction of each step. At the ends of these signal contacts 41 on the opposite side to the mating side with the mating connector, connection parts 41a and 41b are formed wider than the other parts. As shown in FIGS. 2 (a) and 2 (b), these connecting portions 41a and 41b are provided between the signal contacts 41 adjacent to each other in the mating direction with the mating connector and in the direction orthogonal thereto. They are arranged in a staggered manner.

As described above, in order to bring the signal contacts 41 close to each other and to leave a sufficient space between the connection portions 41a and 41b, the protruding lengths of the signal contacts 41 are relatively different. For example, a method of making the signal contact 41 bent or a part thereof is bent. A coaxial cable or the like for signal transmission is inserted into the cylindrical hole 42 formed in the insulator 4.

As shown in FIGS. 3 (a) and 3 (b), reverse insertion prevention key portions 44 for the mating connector are formed on both sides of the mating surface of the insulator 4 with the mating connector. ing. Further, at a location adjacent to the reverse insertion prevention key portion 44, a locking spring 43 having a substantially L-shaped cross section including a hooking portion for hooking and locking the mating connector is provided. In FIG. 3 (a), the hook portion protruding to the right side of the locking spring 43 is located immediately below the reverse insertion prevention key portion 44 and adjacent to the reverse insertion prevention key portion 44. There is. In this way, the locking spring 43 has a substantially L-shaped cross section and has one catching portion, so that the portion for providing the reverse insertion preventing key portion 44 is secured.

FIG. 4 shows clamping and fixing of the insulator 4 by the hood 3. The pair of hood pieces forming the hood 3 are each formed with a concave portion 31 which is recessed in the sandwiching direction of the insulator 4, and the insulator 4 is formed with a convex portion 45 which protrudes at a position corresponding to these concave portions 31. ing. The concave portion 31 and the convex portion 45 are fitted by press-fitting (light press-fitting) when the insulator 4 is sandwiched by the hood 3.

FIG. 5 shows another example of holding and fixing the insulator 4 by the hood 3. Here, a convex portion 32 is provided on the sandwiching side surface of one hood piece above the hood 3, and a concave portion 33 is formed on the other sandwiching side surface below. In this example, the protrusion 32 and the recess 33 are press-fitted into the through hole formed in the insulator 4, for example, so that the insulator 4 can be clamped and fixed by the hood 3. Incidentally, the hood 3 and the insulator 4 are screwed by the screws 6 after being sandwiched, as in the case described above. Further, when the hood 3 and the insulator 4 are fixed by press-fitting the convex portion 32 and the concave portion 33, the fixed strength of the hood 3 and the insulator 4 is significantly improved.

[0023]

[Effect of device]

 As described above, according to the connector plug of the present invention, by arranging the connection positions of the signal contacts juxtaposed on the insulator so as to be shifted between the adjacent signal contacts, the signal contacts can be brought close to each other. Moreover, since a sufficient space is provided between the connection parts, it is possible to reasonably reduce the size and improve workability when connecting the signal contact. In addition, both sides of the mating surface of the insulator with the mating connector are cut out to provide a reverse insertion prevention key portion, and a hook for locking the engagement of the mating connector adjacent to the reverse insertion prevention key portion. Since there is a locking spring that has a substantially L-shaped cross-section including parts, and rattling is suppressed at the catches, it is possible to prevent the reverse insertion while providing the necessary locking strength. Become. Furthermore, since the hood and the insulator have a press-fitting fitting structure of the convex portion and the concave portion, the hood and the insulator can be stably and reliably fixed even if a thin hood having a not so excellent mechanical strength is used. As a result, miniaturization and multi-core can be achieved with high reliability, and a connector plug having sufficient locking strength can be obtained.

[Brief description of drawings]

FIG. 1 is a plan view showing a connector plug according to an embodiment of the present invention in each direction, and FIG.
(B) is the front view, (c) is the side view, (d) is the partially cutaway rear view, (e) is the bottom view.

2A and 2B show an insulator constituting the connector plug shown in FIG. 1, FIG. 2A being a front view thereof, FIG. 2B being a side view thereof, and FIG.

3A and 3B show a main part of the insulator shown in FIG. 2, in which FIG. 3A is a sectional view thereof, and FIG. 3B is a side view thereof.

FIG. 4 is a view for explaining fixing of the insulator and the hood in the connector plug shown in FIG.

5 is a diagram shown for explaining another example of fixing the insulator and the hood in the connector plug shown in FIG. 1. FIG.

6A and 6B are plan views showing a conventional connector plug in each direction, where FIG. 6A is a top view thereof, FIG. 6B is a front view thereof, FIG. 6C is a side view thereof, and FIG. The back view which fractured | ruptured the part, (e) is the bottom view.

7A and 7B show an insulator forming the connector plug shown in FIG. 6, FIG. 7A being a front view thereof, FIG. 7B being a side view thereof, and FIG.

8 is an enlarged view of a main part of the insulator shown in FIG. 7, in which (a) is a sectional view and (b) is a side view thereof.

9 is an enlarged view of a main part of another insulator separate from the insulator shown in FIG.
(A) is the sectional view and (b) is the side view.

FIG. 10 is a view for explaining fixing of the insulator and the hood in the connector plug shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1,100 Connector plug 2,120 Cable support piece 3,130 Hood 4,140 Insulator 5,150 Grip piece 6 Screw 31, 33 Recessed portion 32,45 Convex portion 41,141 Signal contact 41a, 41b, 141a Connection portion 42,142 Holes 43,143 Locking springs 44,144 Reverse insertion prevention key parts 143a, 143b Hook parts

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Nakazawa ▲ Sho ▼ 5-23 Osaki, Shinagawa-ku, Tokyo Hirose Electric Co., Ltd. (72) Akio Suzuki 5-5-23 Osaki, Shinagawa-ku, Tokyo Hirose Electric Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A connector plug including an insulator having a plurality of signal contacts arranged in parallel, and a hood in which a pair of hood pieces are combined, and a hood in which the insulator is partially housed and sandwiched between one ends of the pair of hood pieces. In the above-mentioned insulator, the insulators are arranged such that the positions of the connection portions of the plurality of signal contacts are offset from each other between the adjacent signal contacts with respect to the mating direction with the mating connector and the direction orthogonal to the mating connector. Reverse insertion prevention key portion formed by cutting out both sides of the fitting surface with the side connector, and a hook provided adjacent to the reverse insertion prevention key portion and hooking and locking the mating connector A connector plug having a locking spring having a substantially L-shaped cross section including a portion. 2. The connector plug according to claim 1, wherein the hood and the insulator are fixed by press-fitting a convex portion and a concave portion in the sandwiching direction.