JP3070003B2 - Shield type connector and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shield type connector provided with a shield means for preventing electrical noise on an outer peripheral surface of an insulating housing to which a contact is fixed, and a method of manufacturing the same.

[0002]

2. Description of the Related Art It is known to dispose a metal shield member on the outer peripheral surface of a substantially box-shaped insulating housing of an electric connector in order to prevent electric noise. One example of this type of shielded electrical connector is disclosed in Japanese Utility Model Laid-Open No. 5-34679. The disclosed electrical connector is a board-mounted connector in which a shield member made of a metal plate is disposed so as to overlap four outer peripheral surfaces of a substantially box-shaped insulating housing.

[0003]

In recent years, electrical connectors have tended to be miniaturized, and the above-mentioned shielded connectors are also required to be small. In addition, it is preferable that the shield type connector described above is provided with a shield member so as to surround the outer peripheral surface as much as possible. SUMMARY OF THE INVENTION It is an object of the present invention to provide a shielded connector that is small in size, easy to manufacture and assemble, and has good shielding characteristics, and a method of manufacturing the same.

[0004]

According to the present invention, there is provided a shielded connector in which a shielding means surrounds a substantially box-shaped insulating housing in which a fitting surface and a contact extension surface are arranged back to back, wherein the shielding means comprises the insulating housing. A pair of substantially U-shaped shield members are arranged so as to overlap with three of the six outer surfaces, respectively. One of the shield members has an opening for fitting with a mating connector, and the other has a mating opening. The shield member is provided with a contact extension opening.

Preferably, the one of the substantially U-shaped shield members includes a base wall and a pair of opposed walls, the fitting opening is formed in the base wall, and the insulating housing is provided on the pair of opposed walls. Is formed. The other shield member includes a base wall and a pair of opposing walls, the contact extension opening is formed in the base wall, and engagement means with the insulating housing is formed in the pair of opposing walls. You.

Preferably, the one shield member and the other shield member are formed by processing a metal plate. At this time, the one shield member is formed by processing a metal plate thicker than the other shield member, and the fitting opening is provided in a fitting frame formed by drawing the one shield member. Can be The other shield member has a contact portion that can contact the one shield member.

Further, according to the present invention, in a method of manufacturing a shielded connector having a substantially box-shaped insulating housing, a contact is fixed in the insulating housing so that the contact extends from a surface opposite to a fitting surface. Disposing a pair of substantially U-shaped shield members each having a fitting opening and a contact extension opening from the fitting surface side and the reverse surface of the insulating housing, respectively. The method includes a step of mounting the contact so as to overlap three different surfaces, and a step of bending the contact extending from the contact extension opening.

Preferably, in the step of mounting the pair of shield members, the step of mounting the shield member from the side of the fitting surface is performed after the step of contact bending.

Preferably, the method of fixing the contact in the insulating housing is by press-fitting the contact into the housing or insert-molding the contact.

Preferably, the method for manufacturing a shield type connector includes a step of processing a metal plate. According to this processing step, the pair of shield members are formed by processing a metal plate. One of the pair of shield members mounted from the fitting surface side is formed by processing a metal plate thicker than the other shield member mounted from the opposite surface, and is drawn. Thereby, a fitting frame having the fitting opening inside is formed.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing a shield type connector according to a preferred embodiment of the present invention;

FIG. 1 is a view showing a shield type connector according to a first preferred embodiment of the present invention, wherein FIG.
(B) is a front view, (c) is a bottom view, (d) is a right side view and (e) is a rear view, and (f) is a cross-sectional view taken along line XX in (b) (provided that contacts and The lock piece is shown in a side view). According to FIG. 1, the shielded connector 10 is a so-called SMT type electrical connector which is surface-mounted on a circuit board, and is a pair of an insulating housing 20, a contact 30 fixed to the insulating housing 20, and the insulating housing 20. Of the shield members 40 and 70. As shown in FIG. 1F, the contact 30 is a contact arm 3
1 and an SMT type tine 32 extending from a rear surface (reverse surface) 21 of the insulating housing 20. Contact arm 31
Are supported by the insulating housing 20. FIG.
As shown in (b) to (e), the insulating housing 20 has a pair of posts 24 on the bottom side for limiting the connector mounting position when the connector is mounted on a circuit board.

According to FIGS. 1A to 1F, the shield member 40 has a substantially U-shape, and a base wall 41 located on the fitting surface side.
And opposing side walls 42, 42 located on both sides of the insulating housing 20. As can be understood mainly from FIG. 1F, the shield member 40 is formed by processing a relatively thick metal plate. A fitting frame 49 in which an opening 48 for receiving a part of the mating connector is formed on the inside of the substrate 41 by drawing. Each side wall 42 has an engagement hole 43 that engages with the engagement protrusion 22 formed on the insulating housing 20.
It has a tongue piece 44 located behind the engagement hole 43 and first and second SMT-type soldering portions 45a formed to project laterally. The second soldering portion 45b has a smaller area than the first soldering portion 45a, and is located behind the first soldering portion 45a. The rear end of the second soldered portion 45b is the contact 3
0 and a rear end of the protrusion 75 described later.

1 (a) to 1 (f), the shield member 70 has a substantially U-shape, and a base wall 71 located on the rear end side.
And opposing top bottom walls 72 and 73 located on the top bottom side of the insulating housing 20. As can be understood mainly from FIG. 1F, the shield member 70 is formed by processing a relatively thick metal plate. The base wall 71 has an opening 74 at a position where the contact 30 extends from the insulating housing 20. A pair of projecting walls 75 projecting rearward from the side edges of the opening 74.
Is formed. The protruding piece 75 is a tine 3 of the contact 30.
It acts to protect 2. The top wall 72 is formed by engaging holes 76 for engaging with the engaging projections 23 formed on the insulating housing 20 as shown in FIG. 1A, and by bending the U at the front end as shown in FIG. 1F. The locking piece 77 is provided. Also,
As shown in FIG. 1A, the front end protruding pieces 81 located on both sides of the lock piece 77 are engaged with the support portions 26, 26 of the insulating housing 20 and are supported thereby so as to be prevented from rising. A pair of posts 2 of the insulating housing 20 is provided on the bottom wall 73.
4, a claw 78 that engages with the engagement hole 25 formed between the two, a doubly-supported beam portion 79 located substantially at the center, and the insulating housing 20.
A pair of lances 80 are formed.

A method of manufacturing the shield type connector 10 will be described below with reference to FIGS. 2 to 4 are views for explaining the assembling of each part. FIG. 2 is a plan view, FIG. 3 is a right side view, and FIG. 4 is a bottom view. FIG. 5 is a front view showing the configuration of the shield member 70. FIG. 6 is a sectional view showing a state before bending of the contact.

First of the manufacturing and assembly of the shield type connector 12
In the process, the contact 30 is pressed into the insulating housing 20 and fixed (see the arrow A in FIGS. 2 to 4). The contact 30 arranges the contact arm 31 at a predetermined position, and the tine 32 is arranged so as to linearly extend rearward from the rear surface 21 of the insulating housing 20.

In the second step of manufacturing and assembly, the insulating housing 2
The shield member 70 is mounted from the rear surface side of the reference numeral 0 (see the arrow B in FIGS. 2 to 4). The locking piece 77 of the shield member 70 passes through the concave portion 19 of the insulating housing 20 as shown in FIG.
It is moved to a predetermined position in front of (f). At this time, the front end protruding piece 81 of the top wall 72 is supported by the support portion 26 of the insulating housing 20 as described above, and the engaging hole 76 engages with the engaging protrusion 23 of the insulating housing 20. Further, the pawl 78 located at the front end of the bottom wall 73 enters the engaging hole 25 of the insulating housing 20 and the pair of lances 80 engage the engaging recess 2.
7 is engaged. As can be understood from FIG. 4, a central groove 28 aligned with the engagement hole 25 is formed on the bottom surface side of the insulating housing 20. The above-described double-supported beam portion 79 engages with the concave groove 28 to guide the mounting of the shield member 70 and to align the shield member 70 with the insulating housing 20 at an appropriate position.

3 to 5, the shield member 70 has a side wall portion 82 formed by bending the bottom wall 73 in a direction upright from the rear position of both side edges. Each side wall portion 82 has a doubly supported beam portion 83 extending in the mounting direction of the shield member 70 and a projection 84 at a position at the rear edge of each side edge portion 82 behind the doubly supported beam portion 83.

The above-mentioned doubly supported beam portion 83 is provided in the insulating housing 2.
The side wall 82 is received in the concave groove 29 formed on the side surface of the "0" and guides the side wall portion 82 at the time of mounting so as to be arranged at an appropriate position.

In the third step of manufacturing and assembling, the contact 30 is bent. At the stage when the shields 40 and 70 are mounted on the insulating housing 20, the contacts 30 extend substantially straight rearward as shown in FIG. This is bent at a right angle at a position along the rear surface of the insulating housing 20 and further bent at a position along the bottom wall 73 of the shield member 70 again.
An SMT type tine 32 is formed as shown by a dashed line in FIG. 6 (or shown in FIG. 1F). Tine 3 at this position
2 is a groove 18 of the insulating housing 20 shown in FIGS.
Accepted by.

In the fourth step of manufacturing and assembly, the insulating housing 2
2, the shield member 40 is mounted from the side of the fitting surface of FIG.
To arrow C in FIG. 4). At this time, firstly, the engaging holes 43 formed in the side wall 42 of the shield member 40 are engaged with the engaging projections 22 formed on both side surfaces of the insulating housing 20 and extending in the length direction. Tongue piece 4 in rear position
4 is bent in the direction of arrow R so as to be in the direction shown in FIG. Thereby, the shield member 40
Is securely prevented from coming off with respect to the insulating housing 20.

As understood from FIG. 1 (e), when the shield member 40 is mounted, the projection 84 of the shield member 70,
Reference numeral 84 contacts the shield member 40, thereby realizing a ground connection between the shields 40 and 70. Shield member 7
Since the doubly-supported beam portion 83 formed on the bottom surface abuts against the bottom surface 29 a of the concave groove 29 of the insulating housing 20, the shield member 70 which receives an inward force due to the ground connection between the shield member 40 and the projection 84. Side wall portion 82 is a doubly supported beam portion 83
Elastically supported by

The construction of the shield type connector 10 is realized by the manufacturing method including the above first to fourth steps.

Next, a shield type connector 110 according to a second preferred embodiment of the present invention will be described with reference to FIG. 7A is a plan view, FIG. 7B is a front view, and FIG.
3D shows a bottom view, FIG. 4D shows a right side view, FIG. 4E shows a rear view, and FIG. 4F shows a cross-sectional view taken along line Y-Y in FIG. The shielded connector 110 is the shielded connector 1
Since the basic structure is the same as 0, the members having the same functions as those of the shielded connector 10 and 100 are added to the reference numerals in FIG. 7, and the detailed description of the structure and the manufacturing method is omitted. Hereinafter, only the configuration different from the shielded connector 10 will be described.

The shield type connector 110 is a so-called dip type electrical connector which is inserted and mounted on a circuit board. Accordingly, the tines 132 of the contacts 130 of the shield type connector 110 have a linear shape inserted into a through hole of a circuit board (not shown), and the shield member 1 attached to the insulating housing 120 from the fitting surface side.
The first and second protruding pieces 145a received and soldered in the slots formed in the circuit board are provided on each side wall 142 of the forty.
145b is formed. As can be understood from FIGS. 7C and 7F, two of the four linear tines 132 are provided at the ends of each of a pair of protrusions 20 a formed at the rear end of the insulating housing 20. The two other grooves are received in the formed groove 20b, and the other two are received in the groove 20 formed at the base position of the protruding portion 20a, thereby forming a staggered arrangement. The tine 132 is arranged at an accurate position by these grooves 20b and 20c, and its movement is regulated. As shown in FIGS. 7D and 7F, the second protruding piece 145b is provided at a substantially lateral position of the tine 132 and functions to protect the tine 132. Tyne 1
32 is a shielded connector 1 according to a first preferred embodiment.
In the same manner as the manufacturing method 0, the contact 130 is bent at a right angle in the third step of bending the contact 130.

7 (b), 7 (d), 7 (e) and 7 (f), the shield member 140 has a panel mounting structure 140a formed by drawing. The panel mounting structure 140a includes a screw hole 140b, and enables the shielded connector 110 to be fixed to the panel by cooperation of a screw (not shown) and the screw hole 140b. Panel mounting structure 1
The drawing direction of 40a is opposite to the drawing direction forming the fitting frame 149.

As described above, the shield type connector and the method of manufacturing the shield type connector according to the preferred embodiment of the present invention have been described. However, this does not limit the present invention, and various modifications can be made by those skilled in the art. In particular, in the manufacturing method, the step of mounting the shield members 40 and 140 may be before or after the step of mounting the shield members 70 and 170, and may be before or after the step of bending the contacts 30 and 130. .

[0028]

According to the shielded connector of the present invention, a pair of substantially U-shaped shields are arranged such that the shielding means for shielding the substantially box-shaped insulating housing overlaps each of three of the six surfaces of the insulating housing. Since it is composed of members, a shielded connector that is small and has good shielding characteristics is provided. In particular, according to the shielded connector of the present invention, not all joints between the pair of shield members are located in the six surfaces of the insulating housing.
Since the metal plate is disposed along the edge so as to face in a substantially orthogonal direction, there is no concern that the joint is opened due to the stress applied to the shield member itself during bending. Further, since the thickness of the metal plate forming the shield member can be changed between the fitting surface side and the rear surface side, it is necessary to form the fitting frame with a relatively thick metal plate particularly on the fitting surface side. It is suitable for the case.

[Brief description of the drawings]

FIG. 1 is a view showing a shielded connector according to a first preferred embodiment of the present invention, wherein (a) is a plan view and (b)
Is a front view, (c) is a bottom view, (d) is a right side view, (e)
FIG. 3 is a rear view, and FIG. 3F is a cross-sectional view taken along line XX in FIG.

FIG. 2 is a plan view showing a state before assembly and manufacture of the shielded connector of FIG. 1;

FIG. 3 is a right side view showing a state before assembly and manufacture of the shielded connector of FIG. 1;

FIG. 4 is a bottom view showing a state before assembly and manufacture of the shielded connector of FIG. 1;

FIG. 5 is a front view showing the configuration of a shield member mounted from the rear side of the insulating housing.

FIG. 6 is a sectional view showing a state before bending of the contact.

7A and 7B are views showing a shielded connector according to a second preferred embodiment of the present invention, wherein FIG. 7A is a plan view, FIG. 7B is a front view, FIG. 7C is a bottom view, and FIG. (E) is a rear view, and (f) is a cross-sectional view along line YY in (b).

[Explanation of symbols]

 10, 110 Shield type connector 20, 120 Insulated housing 40, 70, 140, 170 Shielding member 48, 148 Fitting opening 74, 174 Contact extension opening

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-7-254454 (JP, A) JP-A-7-212074 (JP, A) JP-A 8-222324 (JP, A) JP-A 8- 339861 (JP, A) JP-A-63-99887 (JP, A) JP-A-63-26975 (JP, A) JP-A-8-339861 (JP, A) JP-A-6-260247 (JP, A) JP-A-7-73933 (JP, A) JP-A-4-85791 (JP, U) JP-A-4-6183 (JP, U) JP-A-57-89387 (JP, U) JP-A-61-180474 (JP, U) Hikaru 3-32378 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) H01R 13/648 H01R 23/02

Claims (2)

(57) [Claims] 1. A shielded connector in which a shield means surrounds a substantially box-shaped insulating housing in which a fitting surface and a contact extension surface are arranged back to back, wherein the shield means comprises six outer surfaces of the insulating housing. And a pair of substantially U-shaped shield members arranged so as to overlap the three surfaces respectively. One of the shield members has an opening for fitting with a mating connector, and the other shield member has a contact extension opening. The shield type connector characterized by being provided. 2. A method of manufacturing a shielded connector having a substantially box-shaped insulating housing, wherein a step of fixing a contact in the insulating housing and arranging the contact so as to extend from a surface opposite to a fitting surface. And from the fitting surface side and the reverse surface of the insulating housing,
Mounting a pair of substantially U-shaped shield members each having a fitting opening and a contact extension opening so as to overlap three different surfaces of the insulating housing, respectively, and extending from the contact extension opening. And bending the contact.