KR20120069530A - Shield case for receptacle - Google Patents

Abstract

PURPOSE: A shield case of a receptacle is provided to freely set up elastic strength of a spring without restriction of a shield case. CONSTITUTION: A shield case body(11) includes an opening unit. The shield case body includes an upper wall, a lower wall, and left/right walls. The shield case body includes a through-hole on left/side walls. An auxiliary sidewall(20) is fixed on the left/right walls of the shield case body. A spring is formed on the auxiliary sidewall.

Description

Shield case for receptacle {SHIELD CASE FOR RECEPTACLE}

The present invention relates to a shield case (also called a "shell") of a receptacle (also referred to as a "receptacle connector") connected to a plug. For example, the present invention relates to a receptacle of a high speed connector for which a shell is required. It is about a shield case.

It is a perspective view which shows the structure of the receptacle of the prior art example disclosed by the nonpatent literature 1.
The receptacle 101 includes a shield case 111, an insulator 102 attached to the shield case 111, and a plurality of contacts 103 held by the insulator 102.

The shield case 111 is provided with a plug insertion opening 112 that is open toward the front, and an upper surface wall so as to surround a fitting portion of a plug (not shown) inserted into the opening 112. A polygonal cylinder shape is provided with 111A, bottom surface wall 111C, left and right side wall 111B, and inclined wall 111D connecting bottom surface wall 111C and left and right side wall 111B.

The upper surface wall 111A is provided with a through groove 113 having a “C” shape, and is provided with a locking spring 115 for protruding the free end into the shield case 111. The free end of the spring 115 is configured to suppress the plug inserted into the shield case 111. In addition, the through hole 121 having a “C” shape is formed from the inclined wall 111D to the lower surface wall 111C, so that the terminal fixing terminals 123 and 124 protrude from the lower end of the left and right side walls 111B. And the lower case wall 111C of the shield case 111 is mounted on the circuit board to be mounted, and the board fixing terminals 123 and 124 are inserted into the through-holes of the circuit board and soldered to form a receptacle. It is possible to fix the 101 to the circuit board, and the part where the terminals 123 and 124 for fixing the board are cut out and left is left as a hole.

9 is a perspective view showing the structure of another conventional example receptacle.
The receptacle 201 includes a shield case 211, an insulator 202 attached to the shield case 211, and a plurality of contacts 203 held by the insulator 202.

The shield case 211 has an opening 212 for plug insertion opening toward the front side, and an upper surface wall 211A and a lower surface so as to surround a fitting portion of a plug (not shown) inserted into the opening 212. The wall 211C, the left and right side walls 211B, and the inclined wall 211D connecting the lower surface wall 211C and the left and right side walls 211B have a polygonal shape.

The left and right side walls 211B are provided with a spring portion 222 which suppresses a plug inserted into the shield case 211 from the opening 212. Further, substrate fixing terminals 223 and 224 formed by shearing the lower surface wall 211C, the inclined wall 211D, and the like of the shield case 211 protrude from the lower end of the left and right side wall 211B. The receptacle 201 is mounted by mounting the lower surface wall 211C of the shield case 211 on a circuit board to be mounted, and inserting and fixing the board fixing terminals 223 and 224 into a through hole of a circuit board or the like. ) Can be fixed to the circuit board. Also in this case, the part which cut out and stood up the board | substrate fixing terminals 223 and 224 remains as a hole.

Japan Molex Corporation homepage: http://www.molex.com/pdm_docs/sd/467651001_sd.pdf (searched Sep. 2010)

However, since the shield cases 111 and 211 of the conventional receptacle described above did not have a clear contact portion having elasticity for GND (ground) connection, the GND connection (the shield case on the plug side and the shield case on the receptacle side) were not provided. Connection) was unstable. For example, even when the locking spring 115 of the shield case 111 of FIG. 8 or the spring portion 222 of the shield case 211 of FIG. 9 functions as a GND contact portion, those springs (for locking) The spring 115 and the spring portion 222 are formed on the circumferential wall of the shield cases 111 and 211 (top walls 111A and 211A, bottom walls 111C and 211C, left and right side walls 111B and 211B, and inclined walls). (111D, 211D), etc.), it was difficult to give strong elasticity due to the configuration constraint.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and it is possible to set the elastic strength of the spring piece that can function as the GND contact portion as freely as possible without being restricted by the shield case circumferential wall, thereby achieving stabilization of the GND connection. It is an object of the present invention to provide a shield case of a receptacle to be able to.

In order to achieve the above object, the shield case of the receptacle according to the present invention is characterized by the following (1) to (6).
(1) A shield case of a receptacle connected to a plug, comprising: a polygon having an upper surface wall, a lower surface wall, and a left and right side wall so as to have an opening for plug insertion opened toward the front and surround the fitting portion of the plug inserted into the opening. A shield case having a cylindrical shape, the shield case main body including the opening portion, the upper surface wall, the lower surface wall, and the left and right side walls, and having perforations in the left and right side walls; An auxiliary side wall fixedly overlapping with an outer side of the left and right side walls of the shield case body; A spring having a free end projecting from the through hole into the shield case main body, and press-contacting the shield case on the plug side when the plug is inserted into the shield case main body. The piece is formed integrally.
(2) In the shield case of the receptacle of the above structure (1), a protruding piece protrudes from the lower end of the auxiliary side wall, and the protruding piece is provided when the receptacle is mounted on a circuit board. And a substrate fixing terminal for fixing the receptacle to the receptacle.
(3) In the shield case of the receptacle of the above configuration (1) or (2), a protruding piece protrudes from the lower end of the left and right side walls of the shield case main body, and the protruding piece protrudes from the lower end of the auxiliary side wall. It overlaps with the provided protrusion, and it becomes the said board | substrate fixing terminal. It is characterized by the above-mentioned.
(4) In the shield case of the receptacle of the configuration (1) to (3), the auxiliary side wall is formed by bending an extension plate integrally extended to the shield case body.
(5) In the shield case of the receptacle of the configuration of (4), the extension plate is extended to the rear end of the left and right side walls of the shield case body, and the extension plate is bent by 180 ° to the front to bend the above. The auxiliary side wall is comprised, and the front end of the said auxiliary side wall is latched by the locking part provided in the left and right side wall of the said shield case main body.
(6) In the shield case of the receptacle of the above configuration (1) to (3), the auxiliary side wall is formed separately from the shield case main body, and then overlaps and is fixed to the outside of the left and right side walls of the shield case main body. It is characterized by being.

According to the shield case of the structure (1), the auxiliary side wall is provided on the outer side of the left and right side walls of the polygonal shield case main body, the spring side is integrally provided on the auxiliary side wall, and the free end of the spring piece is provided. The spring strength of the spring piece is made to protrude from the perforations provided in the left and right side walls of the shield case main body to the inside of the shield case main body, and to pressurize the shield case on the plug side when the plug is inserted into the shield case main body. It can be set strongly without being restricted by the circumferential wall of the shield case main body, and the contact force with the shield case of a plug side can be raised. In addition, the shield case main body is provided in the circumferential wall (left and right side walls) of the shield case main body only by providing a perforation having a size that allows the free end of the spring piece to be inserted, not a hole or groove for forming the spring piece. It is not necessary to provide unnecessary deficiency in the circumferential wall, and while maintaining the strength as a shell of the shield case main body sufficiently high, the simplification of the shape of the shield case main body can be realized.
According to the shield case of the above structure (2), the terminal for fixing the substrate for fixing the receptacle to the circuit board when the projecting piece is provided on the lower end of the auxiliary side wall and the receptacle is mounted on the circuit board is provided. Since a part of the circumferential wall of the shield case body is cut and raised to form a terminal for fixing the substrate, the terminal for fixing the substrate can be freely formed without unnecessary holes in the circumferential wall of the shield case body. The board fixing terminal of high strength can be formed. In addition, when cutting and raising a portion of the lower surface wall or the inclined wall of the shield case main body to form a terminal for fixing the substrate, the cut-out portion remains as a hole, so that the flux flows from the hole into the shield case body during soldering. There is a risk of intrusion, but it can be resolved.
According to the shield case of the above configuration (3), the substrate is fixed by arranging the projection piece at the lower end of the left and right side walls of the shield case main body and overlapping the projection piece with the projection piece provided to protrude at the lower end of the auxiliary side wall. Since it is a terminal for fixing, the board | substrate for board | substrate of higher strength can be formed, and the improvement of the mounting strength to a circuit board can be realized.
According to the shield case of the above configuration (4), since the auxiliary side wall is formed by bending an extension plate integrally extended to the shield case body, the auxiliary side wall can be manufactured only by a consistent press process, and the manufacturing cost can be reduced. have.
According to the shield case of the structure (5), the extension plate constituting the auxiliary side wall is extended to the rear ends of the left and right side walls of the shield case main body, and the auxiliary side wall is bent by flipping the extension plate 180 ° forward. Since it is comprised, the shape of the vicinity of the front end of a shield case main body does not need to be complicated, and generation | occurrence | production of the deformation of the periphery of the opening part which requires precision in inserting a plug can be suppressed. In addition, since the rear end of the auxiliary side wall formed by bending is supported by the bent portion and the front end is supported by the locking portion, the auxiliary side wall can be firmly fixed to the side wall of the shield case body. Therefore, by increasing the supporting strength of the spring piece, it is possible to exhibit stable elasticity.
According to the shield case of the above configuration (6), since the auxiliary side wall is formed separately from the shield case main body, it is fixed to the outside of the left and right side walls of the shield case main body, thereby facilitating the manufacture of the auxiliary side wall. Can be. In addition, since the material of the auxiliary side wall can be selected separately from the material constituting the shield case main body, the freedom of setting the spring piece elasticity increases. For example, by varying the thickness of the material of the shield case body and the auxiliary side wall, it is possible to easily set the spring strength of the spring piece.

According to this invention, the spring strength of the spring piece which functions as a GND contact part can be set strongly, without being restricted by the peripheral wall of a shield case main body. Therefore, the contact force with the shield case on the plug side can be raised, and stabilization of the GND connection can be realized.

In the above, this invention was demonstrated briefly. Hereinafter, the present invention will be further clarified by the embodiments described with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view seen from the front upper surface of the receptacle using the shield case which concerns on embodiment of this invention.
2 is a perspective view of the receptacle viewed from the front side;
3 is a front view of the receptacle.
4 is a perspective view from behind the top of the receptacle;
5 is a perspective view as seen from the front upper surface of the shield case used for the receptacle.
6 is a perspective view of the shield case seen from the front side;
Fig. 7 is a perspective view showing a state before bending the auxiliary side wall of the shield case.
8 is a perspective view showing a first example of a conventional receptacle.
9 is a perspective view showing a second example of a conventional receptacle.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described with reference to drawings.
1 to 4 are perspective views showing the structure of the receptacle using the shield case according to the embodiment, FIGS. 5 and 6 are perspective views showing the structure of the shield case used for the receptacle, and FIG. 7 is an auxiliary side wall of the shield case. It is a perspective view which shows the state before bending.

As shown in FIGS. 1-4, this receptacle 1 is a female connector connected with the plug which is a male connector, the shield case 10 of the polygonal cylinder shape, and the shield case 10 is shown. And an insulator 2 mounted from the rear end opening thereof, and a plurality of contacts 3 held by the insulator 2.

As shown in FIGS. 1-6, the shield case 10 consists of a shield case main body 11 of a polygonal cylinder shape, and two auxiliary side walls 20. As shown in FIG. The shield case main body 11 has the plug insertion opening part 12 opened toward the front, and 11 A of upper surface walls and the fitting part of the plug (not shown) inserted in this opening part 12, The bottom surface wall 11C, the left and right side wall 11B, and the inclined wall 11D which connects the bottom surface wall 11C and the left and right side wall 11B are comprised in the polygonal shape. A rectangular perforation 14 (see FIG. 7) is formed in the left and right side walls 11B of the shield case main body 11, and the auxiliary side wall 20 is formed by bending an inner side of the perforation 14 outwards to raise it. The engaging piece (locking part) 19 which latches the front end of () is formed.

The auxiliary side wall 20 has a rectangular plate shape and is fixed to the outer side of the left and right side wall 11B of the shield case body 11. In this embodiment, the auxiliary side wall 20 is formed by pressing a metal plate integral with the shield case body 11 and bending the extension plate integrally extended to the shield case body 11. It is formed by.

That is, as shown in FIG. 7, the extension plate 20P is extended to the rear end of the left and right side wall 11B of the shield case main body 11, and this extension plate 20P is moved forward by the bending part 20A. The secondary side wall 20 is constituted by bending over 180 degrees toward the side. 5 and 6, caulking the locking piece 19 formed in the shield case main body 11 to the engagement depression 25 provided at the front end of the auxiliary side wall 20. Thus, the front end of the auxiliary side wall 20 is tightly fixed to the outer surface of the left and right side wall 11B of the shield case main body 11. In addition, the bent portion 20A is formed in a narrow band shape so as to be easily bent.

The shield case on the plug side when the free end 22B protrudes from the through hole 14 into the shield case body 11 and is inserted into the shield case body 11. The strip | belt-shaped spring piece 22 which press-contacts is formed integrally. The spring piece 22 is comprised by the inner side of the "-" shaped through-groove 21, and the fixed end 22A is located in the rear end side of the auxiliary side wall 20, and the free end 22B is carried out. It is formed of a cantilever spring extending toward the front end side of the auxiliary side wall 20. The free end 22B is inclined toward the inner side of the shield case main body 11, and the free end 22B is shielded through the through hole 14 formed in the side wall 11B of the shield case main body 11. It protrudes inside the case main body 11. Moreover, the free end 22B of the spring piece 22 is bent in a "ヘ" shape, and it is easy to receive a flag.

In addition, the lower end of the auxiliary side wall 20 is provided with protruding pieces 23 and 24 spaced apart from the front and rear, and the protruding pieces 23 and 24 are attached to the circuit board when the receptacle 1 is mounted on the circuit board. It is a board fixing terminal for fixing the receptacle. The protruding piece 18 protrudes also in the lower end of the left and right side wall 11B of the shield case main body 11 corresponding to the rear protruding piece 24, and this protruding piece 18 of the auxiliary side wall 20 is provided. It overlaps with the rear side protruding piece 24 which protrudes at the lower end, and it becomes a board | substrate fixing terminal. When the receptacle 1 is mounted on a circuit board, the bottom surface wall 11C of the shield case main body 11 is mounted on the circuit board to be mounted, and the protruding pieces 23, 24, and 18 as the terminal for fixing the board are mounted. The receptacle 1 can be fixed to the circuit board by inserting the solder into the through hole of the circuit board or the like and soldering the same.

Moreover, a pair of arms 15 are provided in the vicinity of both ends in the width direction of the upper surface of the shield case main body 11 and are bent forward at the rear end of the upper surface wall 11A and extended to the front side. On the free end of each arm 15, a stopper portion 17 protruding from the hole 13 formed in the top wall 11A of the shield case body 11 into the shield case body 11 is a plug picking portion. (16) is provided.

The stopper portion 17 is for preventing the non-normal plug from interfering with the non-standard plug when the non-normal plug (plug smaller in width than the normal plug) is inserted into the opening 12, and thereby preventing the non-normal plug from being inserted. It is arrange | positioned in the position of the width direction inner side which interferes. The plug picking portion 16 interferes with the regular plug prior to the stopper portion 17 when the regular plug having a wider width than the non-normal plug is inserted into the opening 12, and is pressed against the regular plug to bend the arm 15. This is to evacuate the stopper portion 17 out of the insertion path of the regular plug.

In this case, as an example of a regular plug, the plug for HDMI Type-D (also called "HDMI micro") can be mentioned. Further, as an example of the non-standard plug, a USB plug for a small digital camera may be shorter in width than the plug for HDMI and shorter in width than the distance between the plug picking portions 16.

Next, the operation will be described.
In the case where the receptacle 1 is fixed to the circuit board, the protruding pieces 23, 24, and 18 serving as the board fixing terminals can be fixed by inserting and soldering the through-holes of the circuit board. When the regular plug is inserted into the opening 12 of the shield case main body 11 in this state, the plug interferes with the plug picking portion 16 and bends the arm 15 to evacuate the stopper portion 17. Thereby, a plug can be inserted to a suitable position. In that state, since the spring piece 22 of the shield case 10 is strongly pressed in contact with the shield case of the plug, stable GND connection is achieved.

In this case, the auxiliary side wall 20 is superposed on the outer side of the left and right side wall 11B of the polygonal shield case main body 11, and the spring piece 22 is integrally provided in the auxiliary side wall 20, Since the free end of the spring piece 22 projects from the through hole 14 provided in the left and right side walls 11B of the shield case main body 11 to the inside of the shield case main body 11, The spring strength can be set strongly without being restricted by the circumferential wall of the shield case main body 11, and the contact force with the shield case on the plug side can be raised. In addition, the circumferential wall (left and right side wall 11B) of the shield case main body 11 has a size that allows the free end of the spring piece 22 to be inserted instead of a hole or a groove for forming the spring piece 22. Since only the perforation 14 is provided, it is not necessary to provide unnecessary deficiency in the peripheral wall of the shield case main body 11, and the strength as a shell of the shield case main body 11 can be kept high enough, The simplification of the shape of the shield case main body 11 can be realized.

In addition, the lower end of the auxiliary side wall 20 is provided with protruding pieces 23 and 24 so as to protrude, and the protruding pieces 23 and 24 are provided with a substrate for fixing the receptacle to the circuit board when the receptacle is mounted on the circuit board. Since it is a terminal for fixing, unlike a part which cuts and raises a part of the circumferential wall of the shield case main body 11, and forms a terminal for fixing a board | substrate, it freely does not make unnecessary holes in the circumferential wall of the shield case main body 11, The board fixing terminal can be formed, and the board fixing terminal of high strength can be formed.
In addition, as in the conventional example, when cutting and raising a part of the lower surface wall 11C or the inclined wall 11D of the shield case body 11 to form a terminal for fixing the substrate, the cut-out portion remains as a hole. In the case of soldering, there is a possibility that the flux penetrates into the shield case main body from the hole at the time of soldering, but according to the shield case 10 of the present embodiment, the concern can be eliminated.

Furthermore, the protrusion piece which provided the protrusion piece 18 in the lower end of the left and right side wall 11B of the shield case main body 11, and protruded the protrusion piece 18 in the lower end of the auxiliary side wall 20 ( By overlapping with 24), the terminal for fixing the substrate can be formed, whereby a terminal having a higher strength can be formed, and the mounting strength on the circuit board can be improved.

Moreover, since the auxiliary side wall 20 is formed by bending the extension plate 20P integrally extended to the shield case main body 11, it can manufacture only by a consistent press process and can reduce manufacturing cost. . In particular, the extension plate 20P constituting the auxiliary side wall 20 extends to the rear end of the left and right side wall 11B of the shield case body 11, and is bent by flipping the extension plate 20P 180 ° forward. Since the auxiliary side wall 20 is formed, the shape of the front end of the shield case main body 11 does not have to be complicated, and the deformation | transformation of the periphery of the opening part which requires precision in inserting a plug can be suppressed. Can be.

In addition, since the rear end of the auxiliary side wall 20 formed by bending is supported by the bent portion 20A, and the front end is supported by the locking piece 19, the auxiliary side wall 20 is left and right sides of the shield case body 11. It can be firmly fixed to the surface wall 11B. Therefore, by increasing the supporting strength of the spring piece 22, stable elasticity can be exhibited.

In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, number, arrangement position, etc. of each component in the above-mentioned embodiment can be arbitrarily implemented as long as this invention can be achieved, and is not limited to the above-mentioned embodiment.

For example, in the said embodiment, although the auxiliary wall part 20 was integrally formed in the shield case main body 11, after forming the auxiliary side wall 20 separately from the shield case main body 11, the shield case main body You may overlap and fix to the outer side of the left and right side wall 11B of (11).

In this case, the production of the auxiliary side wall 20 can be facilitated. Moreover, since the material of the auxiliary side wall 20 can be selected separately from the material which comprises the shield case main body 11, the freedom degree of setting the elasticity of the spring piece 22 increases. For example, by changing the thickness of the material of the shield case main body 11 and the auxiliary side wall 20, the spring strength of the spring piece 22 can be set easily easily.

1: receptacle
2: insulator
3: contact
10: shield case
11: shield case body
11A: Top wall
11B: side walls
11C: Bottom wall
12: opening
14: perforation
18: protrusion
19: account book (account book)
20: secondary side wall
20P: Extension
20A: bend
22: spring piece
22B: Free End
23, 24: protrusion

Claims (6)

A shield case of a receptacle connected to a plug, comprising: a polygonal cylinder shape having an upper surface wall, a lower surface wall, and a left and right side wall so as to have an opening for plug insertion opening toward the front and surrounding the fitting portion of the plug inserted into the opening; It is a shield case
A shield case main body including the opening portion, the upper surface wall, the lower surface wall, and the left and right side walls, and having perforations in the left and right side walls; An auxiliary side wall fixedly overlapping with an outer side of the left and right side walls of the shield case body; And
On the auxiliary side wall, when the free end protrudes from the through hole into the shield case main body and the flag is inserted into the shield case main body, a spring piece which is in pressure contact with the shield case on the plug side is integrally formed. Shield case of receptacle characterized by the above-mentioned. The method of claim 1,
A projecting piece protrudes from a lower end of the auxiliary side wall, and the projecting piece is a board fixing terminal for fixing a receptacle to a circuit board when the receptacle is mounted on a circuit board. The method of claim 2,
A protruding piece protrudes from a lower end of the left and right side walls of the shield case main body, and the protruding piece overlaps with the protruding piece provided protruding from the lower end of the auxiliary side wall to form the terminal for fixing the substrate. Shield case of the receptacle. The method according to any one of claims 1 to 3,
The auxiliary side wall is formed by bending an extension plate integrally extended to the shield case main body. The method of claim 4, wherein
The auxiliary side wall is extended to rear ends of the left and right side walls of the shield case main body, and the auxiliary side wall is formed by bending the extension plate 180 ° forward, and the front side of the auxiliary side wall is the shield case main body. The shield case of the receptacle characterized in that it is locked by the locking portion formed on the left and right side walls of the. The method according to any one of claims 1 to 3,
The auxiliary side wall is formed separately from the shield case main body, and is then fixed to the outer side of the left and right side walls of the shield case main body and fixed.

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