JPH0658576U - Shielded connector - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the shielding performance by connecting the metal shells of the connector housing and the rear cover to each other with an integral hinge. A shield connector including a connector housing (3) having a main metal shell (2) and a rear cover (7) having a sub metal shell (6) openably and closably provided in a rear cutout opening (4) of the connector housing, wherein the main metal shell and the sub metal shell are provided. The metal shell and the shell are connected by a metal hinge portion 5 which is integral with both shells. Further, a crimping connection portion 12 for the shielded electric wire inserted into the connector housing 3 through the rear notch opening 4 is integrally formed with the main metal shell 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a shield connector in which a metal shell of a connector housing and a metal shell of a rear cover are connected to each other by an integral hinge to improve shield property.

[0002]

[Prior art]

 FIG. 4 is an exploded perspective view showing a conventional shielded connector described in Japanese Utility Model Laid-Open No. 63-12174. The shield connector 40 has shield metal covers 42 and 43 disposed above and below the connector body 41 to cover the electric wire 44 inside, and the base portions 45 and 46 of both shield metal covers 42 and 43 are connected to the shield electric wire 47. The shield part 48 is brought into contact with the shield part 48 and is tightened with a screw 49 to be joined.

However, in the above-described conventional structure, since the upper and lower shield metal covers 42 and 43 are joined to each other with the screw 49 to obtain contact, contact resistance due to loosening of the screw 49 or the like is caused. There is a problem in that the electrical connection between the two metal covers 42 and 43 becomes incomplete due to the increase, and the shielding property deteriorates.

[0004]

[Problems to be solved by the device]

 In view of the above points, the present invention has an object to provide a shielded connector that joins shielded metals with each other to obtain conduction and that can prevent incomplete conduction and exhibit good shielding property. To do.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a shield connector including a connector housing having a main metal shell and a rear cover openably and closably provided in a rear cutout opening of the connector housing and having a sub metal shell. It is based on a structure in which a main metal shell and the sub metal shell are connected to both metal shells by an integral metal hinge. A structure in which a crimping connection portion for a shielded electric wire inserted into the connector housing through the rear notch opening is integrally formed with the main metal shell is also effective.

[0006]

[Action]

 Since the main metal shell of the connector housing is integrally formed with the sub metal shell of the rear cover via the metal hinge, both metal shells conduct with zero contact resistance and exhibit high shielding performance. In addition, the shield wire is also connected by a crimp connection piece that is integral with the main metal shell, and the crimp connection piece and the main metal shell are electrically connected by a contact resistance zero, and similarly high shielding performance is exhibited.

[0007]

【Example】

 FIG. 1 is a perspective view showing an embodiment of a shield connector according to the present invention, and FIG. 2 is a vertical sectional view showing a state in which shielded wires are also connected. The shield connector 1 includes a connector housing 3 made of an insulating resin in which a conductive main metal shell 2 for shielding is embedded, and a main body metal shell 2 integrated with a rear opening 4 for inserting a terminal of the connector housing 3. A rear cover 7 made of an insulating resin is provided so as to be openable and closable by a hinge 5, and a conductive sub-metal shell 6 for shielding which is integral with the hinge 5 is embedded therein.

The main metal shell 2 is formed of a terminal material such as iron or brass, and is integrally molded in a connector housing 3 made of synthetic resin. The main metal shell 2 includes a front rectangular tubular portion 9 following the shape of the housing peripheral wall 8, a rear trough-shaped portion 10 excluding the cutout opening 4, and a bottom plate portion of the trough-shaped portion 10 with respect to the shielded electric wire 11. 10a (FIG. 2) and a crimping connection portion 12 integrally extended rearward. The upper end surface 10b of the trough portion 10 is located on the same plane as the housing opening edge 4a.

On the upper wall 13 of the rectangular tubular portion 9, a pair of hinges 5 and 5 are integrally cut and raised. The hinge 5 can be stored in the longitudinal groove 14 in the upper part of the housing peripheral wall 8 when the rear cover 7 is closed. As shown in FIG. 2, the base end of the hinge 5 is connected to the shell upper wall 13 by the bending fulcrum portion 15 which is curved in an R shape when the rear cover 7 is in the opened state, and the tip end of the hinge 5 is interposed by the R-shaped curved portion 16. And is connected to the sub metal shell 6 of the rear cover 7. The curved portion 16 projects outwardly above the upper wall 17 of the rear cover 7, constitutes a substantially crank-shaped bent portion 18, and is embedded in the rear cover 7. The curved portion 16 prevents bending damage from the embedded base portion, and elastically supports the rear cover 7 to give a degree of freedom in the front-rear direction when the rear cover is assembled. Further, the hinge 5 exerts a spring force in the rear cover opening direction in a free state, and improves workability of inserting terminals and electric wires, which will be described later.

Further, the sub metal shell 6 is integrally formed of the same material as the main metal shell 2 and is bent integrally into a substantially L shape and has a rear cover 7 having a shield wire lead-out portion 19. Is integrally molded into a substantially gutter-like shape. A front exposed portion 20 protruding between the pair of hinges 5, 5 and a lower exposed portion 22 protruding downward from the side wall 21 of the rear cover 7 corresponding to the inner surface of the gutter-shaped portion 10 of the main metal shell 2. Have.

The rear cover 7 has an engaging frame portion 24 with respect to the engaging protrusion 23 of the connector housing 3, and is joined and closed to the connector housing 3. In this state, the front exposed portion 20 of the sub metal shell 6 is in surface contact with the inner surface of the upper wall 13 of the rectangular tubular portion 9 of the main metal shell 2, and the lower exposed portion 22 is in contact with the inner surface of the side wall of the trough portion 10.

As shown in FIG. 2, the pressure contact terminal 34 is inserted into the connector housing 3 through the notch opening 4 before the rear cover is closed. The lead wire 25 of the shielded electric wire 11 is pressure-connected to the pressure contact terminal 34 by a pressing jig (not shown), and the terminal crimping portion 12 integrated with the main metal shell is crimped to the shield portion of the shield electric wire 11 such as a braid. To connect. As shown in FIG. 1, the terminal crimping portion 12 is composed of a pair of crimping pieces 26, 26 and a central cut-and-raised piece 27 that divides the plurality of electric wires 11 into left and right. Since the terminal crimping portion 12 is integrated with the main metal shell 2, the contact resistance between the crimping portion 12 and the metal shell 2 becomes zero, and the shield property is improved.

FIG. 3 is a vertical cross-sectional view showing a state in which the shield connector (right side) 1 is connected to the mating shield connector (left side) 28. The hinge 5 of the shield connector 1 extends forward from the curved portion 16 on the rear cover 7 side in the longitudinal groove 14 of the housing 3 in parallel, and the tip portion thereof is curved downward to be embedded in the housing peripheral wall 8. There is. The tip curved portion 29 is formed according to the closing of the rear cover 7, and elastically supports the rear cover 7 together with the rear curved portion 16. The rectangular tubular portion 9 of the main metal shell 2 following the tip curved portion 29 is fitted into contact with the tip-side exposed portion 31 of the same main metal shell 30 protruding from the tip of the mating connector 28. The hinge portion 32 of the mating connector 28 is fitted and protected in the front end fitting wall 33 of the shield connector 1.

[0014]

[Effect of device]

 As described above, according to the present invention, since the metal shell on the connector housing side and the metal shell on the rear cover side are electrically connected to each other through the hinge part integrated with each other, the contact resistance between the metal shells becomes zero. , Good shielding performance is demonstrated. Also, since the hinge portion is made of metal, the opening and closing durability of the rear cover is excellent, and the spring property of the hinge portion keeps the rear cover open so that terminals, etc. can be inserted into the connector housing. Workability can be improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a shield connector according to the present invention.

FIG. 2 is a vertical sectional view showing a state in which a shielded electric wire is also connected.

FIG. 3 is a vertical cross-sectional view showing a connection state with a counterpart shield connector.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Shield Connector 2 Main Metal Shell 3 Connector Housing 4 Notch Opening 5 Hinge 6 Sub Metal Shell 7 Rear Cover 11 Shield Wire 12 Crimp Connection

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takayoshi Endo 206-1 Nunobikihara, Haibara-machi, Haibara-gun, Shizuoka Prefecture Yazaki Parts Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A shielded connector comprising a connector housing having a main metal shell and a rear cover having a sub metal shell openably and closably provided in a rear cutout of the connector housing, wherein the main metal shell and the sub metal shell are provided. A shielded connector, characterized in that the shell and the both metal shells are connected by an integral metal hinge. 2. The shield connector according to claim 1, wherein a crimping connection portion for a shielded electric wire inserted into the connector housing through the rear notch opening is integrally formed with the main metal shell.