JP4321710B2 - Shield type connector - Google Patents

Description

  The present invention relates to a shielded connector used in an electric / electronic device such as a mobile phone, and more particularly to a shielded connector mounted on a substrate disposed in a narrow space.

  Various types of shield-type connectors are conventionally known. For example, there is known a structure in which a single metal shield shell is bent around a rectangular insulating housing (Patent Document 1). In this connector, a seam where the edges of the shield shell contact each other is formed on the bottom surface of the shield shell. Further, a contact piece that contacts the shield shell of the mating connector is formed on the bottom surface, and mounting legs that are cut and raised from the bottom surface and attached to the board are formed.

A connector of a type in which two shield shells are arranged around an insulating housing is also known (Patent Document 2). The shield shell is divided into upper and lower portions, and overlaps with each other at the side wall portion of the housing, and is engaged with each other at the overlapping portion to be integrated together.
US Pat. No. 5,797,770 (FIGS. 10 and 11) Japanese Patent Laid-Open No. 2003-187916 (FIGS. 1 and 2)

  In the connector disclosed in Patent Document 1, although the number of parts of the shield shell is small, the position and shape of the mounting legs on the board are limited because the contact pieces need to be formed on the same bottom surface. For this reason, it may be difficult to set the most preferable mounting position and secure an appropriate dimension. In addition, since the joint portion is merely in contact with each other, if the external force is applied before mounting the substrate, the joint portion may spread and the shield shell may be deformed.

  Further, in the connector described in Patent Document 2, since the upper and lower shield shells are engaged with each other at the side wall portion, the strength of the shield shell after mounting the board is high. However, before the board is mounted, the side wall of the upper shell that overlaps the lower shell may be opened by an external force, and the mutual engagement between the shells may be uncertain.

  The present invention has been made in view of the above circumstances, and the mounting legs to the board can be easily formed in the most appropriate shape and position, has a high degree of design freedom, and is securely attached to the board. An object of the present invention is to provide a shielded connector that can be used.

  Another object of the present invention is to provide a shielded connector that protects a seam formed by bending a single shield shell, and can maintain integrity as a shield shell even when subjected to external force before mounting on a board. There is to do.

  Still another object of the present invention is to provide a shielded connector that can reduce the height at which the connector protrudes from the board when the connector is mounted on the board.

  Furthermore, another object of the present invention is to provide a shielded connector that can be easily adapted to both the type of mounting from the upper surface side and the type of mounting from the lower surface side by preparing two extending directions of the mounting legs. Is to provide.

  The shield type connector of the present invention is a shield type connector comprising a contact, an insulating housing that accommodates the contact, and a metal shield shell that covers the outer periphery of the insulating housing and has a seam on one surface of the insulating housing. Has a separate metal mounting member, the mounting member has a surface covering the seam, and mounting legs for mounting the shield type connector on the board at positions corresponding to both sides of the shield shell. It is what.

  The mounting leg extends upward or downward away from the side wall of the shield shell. When the shield type connector is attached to the board, the shield shell is disposed in the notch of the board, and the mounting leg is mounted on the board. It may be configured to be.

  A first locking portion and a second locking portion that overlap the outer surface of the side wall of the shield shell and are spaced apart from each other in the insertion / extraction direction are formed on both sides of the mounting member, respectively. And an engaging portion that engages with the second locking portion to fix the attachment member.

  The mounting leg is preferably located between the first locking portion and the second locking portion on each side of the shield shell.

  The shield type connector of the present invention covers the outer periphery of the insulating housing and the shield shell having a seam on one surface of the insulating housing has a separate metal mounting member, and the mounting member has a surface covering the seam, Since the mounting legs for mounting the shield type connector on the board are provided at positions corresponding to both sides of the shield shell, the following effects can be obtained. That is, the mounting legs on the board can be easily formed in the most appropriate shape and position without being affected by the configuration of the shield shell, and the degree of freedom in design is increased. In addition, since the strength required for the mounting leg can be obtained, the mounting leg can be securely mounted to the substrate without fear of deformation. In addition, since the seam formed at the abutting part between the edges is protected by bending one shield shell, it maintains integrity as a shield shell without deformation even if it receives external force before board mounting A shielded connector that can be obtained is obtained.

  In addition, when the shield type connector of the present invention is attached to the board, the shield shell is disposed in the notch of the board and the mounting legs are configured to be mounted on the board. The height at which the connector protrudes from the board can be reduced, and the assembly of the board and the connector can be installed in a narrow space. Further, by preparing two extending directions of the mounting legs, it is possible to obtain a shielded connector that can easily cope with both the type of mounting from the upper surface side and the type of mounting from the lower surface side.

  Preferred embodiments of a shielded connector (hereinafter simply referred to as a connector) according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a perspective view of a shielded connector (hereinafter simply referred to as a connector) 1 according to a first embodiment of the present invention as viewed from the front 2 side. Hereinafter, a description will be given with reference to FIG.

  The connector 1 includes an insulating housing (hereinafter simply referred to as a housing) 6, a plurality of contacts 8 held by the housing 6, and a shielding member or shield shell (hereinafter simply referred to as a shell) disposed so as to cover the periphery of the housing 6. 10 and a mounting member 70 disposed in the lower part of the shell 10.

  First, the shell 10 will be described with reference to FIG. FIG. 2 is a perspective view of the shell 10 including the housing 6. The shell 10 is punched from one conductive metal plate and bent into a shape along the outer periphery of the housing 6. The entire housing 6 is accommodated in the shell 10. Then, the edges of the shell 10 come into contact with each other to form the seam 60. Since the seam 60 is formed in a relationship of “present” and “present groove”, the edges are difficult to separate from each other.

  On both sides of the rear portion 4 of the upper wall 28 of the shell 10, a cantilever-like tongue piece 30 having a fixed end on the upper wall 28 is punched in a direction perpendicular to the insertion / extraction direction 62 of the mating connector (not shown). Formed and bent inward. A recess 32 is formed in the housing 6 at a position corresponding to the tongue piece 30, and the tongue piece 30 is engaged in the recess 32. A tongue piece 31 similar to the tongue piece 30 is also formed on the bottom wall 36 of the shell 10, and is similarly engaged with a recess 33 formed in the lower part of the housing 6 (FIG. 5). The shell 10 is fixed to the housing 6 by the engagement between the tongue pieces 30 and 31 and the recesses 32 and 33.

  L-shaped mounting legs 42, 42, which extend rearward and further hang down, hang downward on the rear 4 side of the side walls 40 of the shell 10. In the vicinity of the front portion 2 of the shell 10, an L-shaped spring piece 46 is formed by punching from the upper wall 28 to the side wall 40. The spring piece 46 has a fixed end on the upper wall 28 and is formed symmetrically on the left and right side walls 40 of the shell 10. And it has the arm 48 extended from the upper wall 28 to the side wall 40, and the latching piece 50 extended at right angle from the front-end | tip of this arm 48 back. The locking piece 50 is formed with a locking projection 52 that protrudes inwardly in an arc shape. The locking projection 52 is adapted to engage with the mating connector when mated with the mating connector (not shown).

  Engagement protrusions (engagement portions) 44 are formed in the longitudinal direction of the side walls 40, that is, substantially in the middle of the insertion / extraction direction 62, and project outward and upward by cutting and raising. The engagement protrusion 44 engages with the attachment member 70, and the mode of engagement will be described later. Further, a projecting piece (engaging portion) 49 is formed at the front end of each side wall 40 so as to expand outward of the shell 10 and engage with the notch 76 a of the mounting member 70. Further, a tongue piece 45 extending downward is formed in the vicinity of the spring piece 46 on the side wall 40.

  In the drawing, protrusions, ie, pressure contact protrusions (beads) 54 and 56 are formed on the upper wall 28 and the bottom wall 36 of the shell 10 (FIG. 5). These pressure contact projections 54 and 56 are formed by inwardly projecting from the top wall 28 and the bottom wall 36, respectively, and slightly project inward from these wall surfaces. The amount of protrusion is such that when mated with the mating connector, it slides into contact with the insulating housing of the mating connector. The pressure contact protrusions 56, 56 of the bottom wall 36 each have a substantially elliptical shape, and are arranged on both sides with the joint 60 interposed therebetween. These pressure contact projections 54, 56, 56 are formed at positions substantially opposite to each other so as to balance the force applied to the housing of the mating connector from above and below.

  Next, the attachment member 70 will be described with reference to FIG. FIG. 3 is a perspective view of the attachment member 70. As best shown in FIG. 3, the mounting member 70 includes a flat portion (surface) 72 located below the bottom wall 36 of the shell 10, a transition portion 74 inclined outward from both sides of the flat portion 72, and Through the transition portion 74, a tongue-shaped first locking portion 76 and a second locking portion 78 projecting substantially perpendicular to the flat portion 72 are provided above and behind the transition portion 74. The first locking part 76 has a notch 76a facing forward, and the second locking part 78 has a rectangular opening 78a. A mounting portion 80 having a width slightly smaller than the interval between the locking portions 76 and 78 is formed between the first locking portion 76 and the second locking portion 78. The mounting portion 80 has an inverted U-shaped cross section that extends upward through a web 84 that is slightly outwardly biased from the transition portion 74. A tip portion extending downward is an attachment leg 82 that is slightly narrower than the attachment portion 80.

  Regardless of the presence of the shield shell seam 60 and the spring piece 46, the mounting leg 82 can be formed at a relatively free position of the mounting member 70 with a sufficient width and shape as required. A downward projection 80 a is formed on the front portion of the mounting leg 82 in the insertion / extraction direction 62 adjacent to the mounting leg 82. The protrusion 80 a functions to maintain the connector 1 at an appropriate mounting height by contacting the surface of the substrate 26 when the mounting leg 82 is inserted into the substrate 26. In the transition portion 74 described above, a rectangular opening 74a is formed in the approximate center in the insertion / extraction direction. In the flat portion 72, two rectangular openings 72 a extending in a direction orthogonal to the insertion / extraction direction 62 are formed to reduce the weight of the mounting member 70.

  A mode in which the mounting member 70 formed in this way is mounted under the shell 10 will be described with reference to FIGS. 4 and 5 together. FIG. 4 is a rear view of the connector 1 as viewed from the rear part 4. FIG. 5 is a bottom view of the connector 1. In order to attach the attachment member 70 to the shell 10, when the attachment member 70 is pressed against the shell 10 from below while engaging the notch 76 a of the first locking portion 76 and the protruding piece 49 of the shell 10, The mating protrusion 44 engages with the opening 78 a of the attachment member 70. And the downward tongue piece 45 of the shell 10 penetrates into the opening 74a. Thereby, the attachment member 70 is fixed to the shell 10 so as not to move in the insertion / extraction direction 62, the left / right direction, and the up / down direction. The shell 10 is held from both sides by the mounting member 70, and the flat portion 72 of the mounting member 70 is in close contact with the bottom wall 36 to cover the joint 60. Therefore, the side wall 40 of the shell 1 is prevented from expanding and the seam 60 of the shell 10 is prevented from being separated.

  As shown in FIG. 4, the housing 6 has tapers 12 formed at the lower corners in accordance with the shape of the shell. And it has the contact support plate 16 which protrudes ahead (FIG. 6). A plurality of contact receiving grooves 18 are formed on the upper and lower surfaces of the contact support plate 16 at predetermined intervals. The contacts 8 are press-fitted into the contact receiving grooves 18 and are arranged on the contact support plate 16. The contact 8 has a tine 8 a that extends horizontally to the rear part of the housing 6 and is connected to the substrate 26 at the rear end part. Further, a pair of support projections 20 projecting in the same direction as the tine 8a are formed at both ends of the rear portion of the housing 6 at positions slightly shifted from the row of tines 8a. When the connector 1 is attached to the board 26, the support protrusion 20 comes into contact with the board 26 and excessive stress is applied to the tine 8a when the tine 8a comes into contact with the board 26 and is accidentally excessively bent. This is to prevent this.

  Next, a mode in which the connector 1 is attached to the board 26 will be described with reference to FIG. FIG. 6 is a perspective view showing a state in which the connector 1 of the first embodiment is attached to the board 26. A notch 27 having a width slightly larger than the width of the connector 1 is formed at the edge of the substrate 26 to which the connector 1 is attached. In the cutout 27, the connector 1 is disposed from above. In the vicinity of the notch 27, through holes 26a and 26b are formed at positions corresponding to the mounting legs 42 and 82, respectively. When the connector 1 is mounted in the notch 27, the tine 8a of the contact 8 is surface-mounted on a conductive pad (not shown) on the substrate 26. The mounting legs 42 and 82 are inserted into the through holes 26a and 26b and soldered, respectively. Thus, since the connector 1 is arrange | positioned in the board | substrate 26, the mounting height of the connector 1 can be made low. FIG. 4 clearly shows that the tine 8 a of the contact 8 is surface-mounted on the upper surface of the substrate 26 when the connector 1 is attached to the substrate 26.

  Next, a second embodiment of the present invention will be described with reference to FIGS. 7 is a perspective view of a connector according to the second embodiment, FIG. 8 is a perspective view of a shell including a housing, FIG. 9 is a perspective view of a mounting member, FIG. 10 is a rear view of the connector as viewed from the rear side, and FIG. FIG. 1 shows a perspective view showing a state where a connector is attached to a substrate. In the description, differences from the first embodiment will be mainly described, and description of the same configuration will be omitted. The connector 101 of the second embodiment is greatly different from the connector 1 of the first embodiment in that the connector 101 is configured to be attached to the lower surface side of the substrate 126 (FIG. 11). For this reason, the mounting legs 142 and 182 attached to the board 126 are formed to extend upward.

  First, the shell 110 will be described with reference to FIG. The mounting leg 142 has a bowl shape that hangs down from the rear end portion of the side wall 140 of the shell 110 and extends further rearward. The shell 110 is also formed with a seam 160, an engaging protrusion 144, and a protruding piece 149 similar to those of the first embodiment.

  As for the mounting member 170, the mounting portion 180 between the first locking portion 176 and the second locking portion 178 extends outwardly and substantially parallel to the flat portion (surface) 172, and further has mounting legs. 182 extends upward. A surface 182 a of the attachment portion 180 that is substantially parallel to the flat portion 172 contacts the lower surface of the substrate 126 when the connector 101 is attached to the substrate 126. The first locking portion 176 has a notch 176a similar to that of the first embodiment, and the second locking portion 178 has an opening 178a. In addition, a rectangular opening 172 a is formed on the front side of the flat portion 172. The lower surface of the flat region in which the rectangular opening 172a is not formed becomes a suction surface of a suction device used when the connector 101 is mounted on the board 126. When the housing 106 having the shell 110, the mounting member 170, and the contacts 108 is assembled in the same manner as in the first embodiment, the connector 101 shown in FIGS. 7 and 10 is obtained.

  In order to attach the connector 101 to the board 126, the connector 101 is attached to the notch 127 of the board 126 from below. The mounting legs 142 and 182 are inserted into the through holes 126a and 126b of the board from below and soldered. The tine 108 a of the contact 108 is surface-mounted on the lower surface of the substrate 126.

  The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the above-described embodiments, and it goes without saying that various modifications and changes can be made by those skilled in the art. For example, the mounting legs 42, 142, 82, and 182 have been described as having shapes that are inserted into the through holes of the substrate, but may be shapes that are surface-mounted on the conductive pads of the substrate.

  Since the present invention is configured as described above, two types of connectors attached to the upper surface or the lower surface of the substrate can be manufactured by relatively changing the mold, that is, exchanging the mold parts. Therefore, it has the effect of being able to respond to the customer's request for quick delivery by standardizing the design and sharing the equipment.

The perspective view which looked at the shield type connector which concerns on the 1st Embodiment of this invention from the front part side The perspective view of the shield shell containing the insulation housing used for the shield type connector of FIG. The perspective view of the attachment member used for the shield type connector of FIG. 1 is a rear view of the shielded connector of FIG. 1 viewed from the rear. Bottom view of shielded connector in Fig. 1 The perspective view which shows the state which attached the shield type connector of FIG. 1 to the board | substrate. The perspective view which looked at the shield type connector which concerns on the 2nd Embodiment of this invention from the front part side The perspective view of the shield shell containing the insulation housing used for the shield type connector of FIG. The perspective view of the attachment member used for the shield type connector of FIG. The rear view which looked at the shield type connector of Drawing 7 from the rear The perspective view which shows the state which attached the shield type connector of FIG. 7 to the board | substrate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Shield type connector 6,106 Insulation housing 8,108 Contact 10,110 Shield shell 27,127 Notch 40,140 Side wall 60,160 Seam 70,170 Mounting member 72,172 Flat part (surface)
82, 182 Mounting legs

Claims (1)

In a shielded connector comprising a contact, an insulating housing that accommodates the contact, and a metal shield shell that covers the outer periphery of the insulating housing and has a seam on one surface of the insulating housing,
The shield shell has a separate metal mounting member, the mounting member has a surface covering the seam, and mounting legs for mounting the shield type connector on a substrate having a notch are included in the shield shell. of possess at positions corresponding to both sides, the mounting leg extends upward or downward away from the side wall of the shield shell,
When the shield type connector is attached to the board, the shield shell is arranged in the cutout of the board, and the attachment leg is mounted on the board .

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