JP3109294U - Connector with shield - Google Patents

Abstract

A connector including a shield is provided.
A connector having a shield includes a plastic case, and a plurality of terminals are fixed to the inside of the plastic case, and the outside is covered with first and second shields. A plurality of suspension elastic pieces 64 are provided, the free ends of these suspension elastic pieces are all bent toward the inside of the first shield 60, and retracting holes 82 corresponding to the suspension elastic pieces are provided in the second shield 80. In addition, a fixing pin 85 that protrudes downward is provided at the bottom of the second shield. When a connector having a shield according to the present invention is connected to a corresponding connector, the tight shielding of the first shield by the second shield increases the strength of the shield and prevents deformation due to insufficient strength of the shield.
[Selection] Figure 2

Description

  The present invention relates to a kind of digital connector, and more particularly to a connector having a shield.

  A digital connector is a kind of component that a digital engineer makes regular contact with, and its operation is very simple, that is, when the circuit is interrupted or between isolated and disconnected circuits, and serves as a communication bridge, In order to achieve a predetermined function of the circuit.

  A digital connector often seen has a plastic case, a plurality of terminals are accommodated inside, and the outside is covered with a shield. The shield is a sheet metal part, integrally processed and molded, and joined together by a well-known locking mechanism, and is bent to project toward the inside of the shield on the top wall, bottom wall, and both side walls of the shield. A piece is provided. When the known connector is connected to the corresponding connector, the plurality of suspension elastic pieces described above are pressed against the shield of the corresponding connector, thereby completing the combination between the two.

  Currently, most digital connectors used for power transmission employ the above-described structural design. Generally, when using a power connector, it is not necessary to insert / remove regularly, but it requires a relatively large insertion / removal force to ensure signal transmission stability with reliable and strong mechanical and electrical connections. ing. However, the known power connector design described above is provided with only one layer of shield, and the strength increases. When the corresponding connector is inserted and combined, a relatively large insertion force is generated between the two. For this reason, the shield locking mechanism is disengaged and the combination is released, and the shield is deformed and expired. As a result, the combination with the corresponding connector becomes impossible. This problem is very likely to occur.

  The purpose of the present invention is to provide a connector with a kind of shield to solve the above-mentioned problems of the known technology, thereby increasing the strength of the shield, and thereby the deformation due to insufficient strength when the corresponding connector is inserted and combined. It is to be able to prevent.

  In order to achieve the above object, the present invention provides a connector having a kind of shield, which includes a plastic case and first and second shields, and the plastic case holds a plurality of terminals therein. An insertion space is formed inside the first shield, the plastic case is inserted therein, a plurality of suspension elastic pieces are provided on the first shield, and the free ends of these suspension elastic pieces are directed toward the insertion space. It is bent and stretched. A holding space is formed inside the second shield, the first shield described above is held therein, a retracting hole corresponding to the suspension elastic piece of the first shield is provided in the second shield, and the second shield A fixing pin extended downward is formed at the bottom of each.

  In order to improve the present invention, a position restricting groove is formed on the outer surface of the plastic case, the front end of the position restricting groove is closed, the rear end communicates with the outside world, and the position is located in the first shield. A position restriction piece corresponding to the restriction groove is provided, and the position restriction piece is inclined downward and is fitted into the position restriction groove.

  In order to improve the present invention, a pair of juxtaposed bottom plates projecting forward is provided on the front end surface of the plastic case, and a positioning guide groove is provided between the two bottom plates. The end is closed, the front end communicates with the outside world, the bottom wall of the first shield extends downward to form a position limiting column, and the position limiting column is inserted correspondingly into the positioning guide groove. Is done.

  In order to improve the present invention, the tongue plate is extended forward from the front end surface of the plastic case, and a plurality of terminal grooves are formed in the tongue plate, each of which is accommodated corresponding to the terminal. A bottom plate that protrudes further forward is formed on the front end surface of the base plate, the bottom plate is positioned below the tongue plate, and a first engagement groove is formed between the bottom plate and the front end of the top surface of the bottom plate is recessed downward. An engagement groove is formed, the rear end of the first engagement groove is closed, the front end communicates with the outside and the second engagement groove, and the bottom wall of the first shield is placed in the first engagement groove. In other words, the bottom wall of the second shield is placed in the second engagement groove.

  In order to improve the present invention, the both side walls of the second shield are extended downward to form extended walls, and the fixing pins are extended downward from the front and rear ends of the bottom end of each extended wall. .

  In order to improve the present invention, the extending walls are extended downward from the both side walls of the second shield described above, engagement holes are provided in the extending walls, and the bottom ends of both sides of the rear wall of the second shield are bent forward. The wall is stretched to form a folding wall, and an engagement block protruding outward is formed on each folding wall to be engaged in the engagement hole.

  In order to improve the present invention, a notch is formed in the rear end of both sides of the plastic case, and the bent wall enters the corresponding notch.

The invention of claim 1 includes a plastic case, a first shield, and a second shield, the plastic case holds a plurality of terminals therein, and the first shield has an insertion space formed therein, and the plastic case is A plurality of suspension elastic pieces are provided in the first shield, the free ends of these suspension elastic pieces are bent and extended toward the insertion space, and a holding space is formed inside the second shield. The first shield described above is sandwiched therein, the second shield is provided with a retracting hole corresponding to the suspension elastic piece of the first shield, and at least one of the first shield extended downwardly at the bottom of the second shield A connector having a shield, characterized in that a fixing pin is formed.
The invention of claim 2 is the connector having a shield according to claim 1, wherein a positioning guide groove is formed on the outer surface of the plastic case, the front end of the position limiting groove is closed, and the rear end communicates with the outside world. The first shield described above is provided with a position restriction piece corresponding to the position restriction groove, and the position restriction piece is inclined downward and is fitted into the position restriction groove. Connector.
According to a third aspect of the present invention, there is provided a connector having a shield according to the first aspect, wherein a pair of juxtaposed bottom plates protruding forward is provided on the front end surface of the plastic case, and a positioning guide groove is provided between the two bottom plates. And the rear end of the positioning guide groove is closed, the front end communicates with the outside, and the bottom wall of the first shield is extended downward to form a position limiting column. The connector is provided with a shield, and is inserted correspondingly into the groove.
According to a fourth aspect of the present invention, in the connector having the shield according to the first aspect, the tongue plate extends forward from the front end surface of the plastic case, and a plurality of terminal grooves are formed in the tongue plate, each corresponding to the above-described terminal. A bottom plate protruding further forward on the front end surface of the plastic case, the bottom plate being positioned below the tongue plate, and forming a first engagement groove with the tongue plate, The front end of the upper surface of the bottom plate is recessed downward to form a second engagement groove, and the rear end of the first engagement groove is closed, the front end communicates with the outside and the second engagement groove, and the bottom of the first shield described above A connector having a shield is characterized in that the wall is placed in the first engaging groove and the bottom wall of the second shield is placed in the second engaging groove.
The invention according to claim 5 is the connector having the shield according to claim 1, wherein both side walls of the second shield are extended downward to form an extension wall, and the fixing pin has both front and rear ends of the bottom end of each extension wall. The connector is provided with a shield, characterized by being drawn downward.
The invention according to claim 6 is the connector having the shield according to claim 1, wherein extending walls are extended downward from both side walls of the second shield, engagement holes are provided in the extending walls, and the rear wall of the second shield. The vicinity of the bottom ends of both sides is folded forward and stretched to form a folding wall, and an engagement block protruding outward is formed on each folding wall to be engaged in the engagement hole. It is a connector with a shield.
The invention of claim 7 is a connector having a shield according to claim 1, wherein notches are formed in the rear ends of both side surfaces of the plastic case, and the bent walls enter into the corresponding notches. A connector with a shield.

  The connector having a shield of the present invention has a shield design composed of a second shield that covers the first shield tightly with the first shield, obviously increasing the strength of the shield case, and connecting with the corresponding connector In the process, it is possible to withstand a large insertion / extraction force and to prevent deformation and revocation. In addition, when the engagement blocks on both sides of the rear wall of the second shield protrude outward and engage with the corresponding engagement holes on both sides of the wall, when the fixing pins on both sides of the wall are inserted into the external board, the bent wall As a result, the engagement block is engaged with the engagement hole from the beginning to the end, and the second shield is in a reliable and strong engagement state from beginning to end. This prevents the deformation of the shield from becoming invalid.

  As shown in FIGS. 1 and 2, the connector 100 having a shield includes a plastic case 20, a plurality of terminals 40 are fixed inside the plastic case 20, and the outside of the plastic case 20 is covered with a shield. The shield is composed of a first shield 60 that covers the outside of the plastic case 20 and a second shield 80 that covers the outside of the first shield 60.

  See also FIG. A pair of position restricting grooves 21 are formed on the upper surface of the plastic case 20, and the pair of position restricting grooves 21 are located on both sides of the upper surface and are elongated in the vertical direction, the front end thereof is closed, and the rear end communicates with the outside world. Yes. Extending from the front end surface of the plastic case 20 are a tongue plate 22 and a pair of bottom plates 24 positioned below the tongue plate 22 and arranged in parallel. A plurality of terminal grooves 23 are opened in the above-described tongue plate 22 in the vertical direction, and the corresponding terminals 40 are fixed. The positioning guide groove 26 is formed between the two bottom plates 24 described above, the rear end of the positioning guide groove 26 is closed, the front end communicates with the outside world, and between the bottom plate 24 and the tongue plate 22 of the plastic case 20. A first engagement groove 27 is formed, and the top front end of the bottom plate 24 is further recessed downward to form a second engagement groove 28, the rear end of the first engagement groove 27 is closed, and the front end is the outside and It communicates with the second engagement groove 28. Cutouts 25 are formed in portions near the bottom end of the rear ends of both side surfaces of the plastic case 20, and are used for locking and positioning of the second shield 80.

  An insertion space 62 is formed inside the first shield 60, and both front and rear ends of the insertion space 62 communicate with the outside world and are used for insertion into the plastic case 20 described above. A pair of suspension elastic pieces 64 are provided at the front wall front end of the first shield 60, are respectively positioned on both sides of the front end and are elongated in the vertical direction, and a pair of position limiting pieces 66 are provided at the rear end of the top wall. Corresponding to the position of the elastic piece 64, it is inclined downward and enters the insertion space 62. The rear end of the bottom wall of the first shield 60 is opened, a pair of suspension elastic pieces 64 are also provided at the front end of the bottom wall, and a position limiting column 68 that is vertically bent and extended downward substantially at the middle of the rear end of the bottom wall. Is provided. Suspension elastic pieces 64 are also provided on both side walls of the first shield 60, but the length is slightly longer than the suspension elastic pieces 64 on the top wall and the bottom wall. All the free ends of the suspension elastic pieces 64 are bent toward the insertion space 62 and protrude, and are used to press and hold the corresponding wall of the shield of the corresponding connector (not shown). The combination between the two connectors is completed.

  As shown in FIGS. 1 and 4, the shape of the second shield 80 corresponds to the first shield 60, a holding space 81 is formed inside, the front end of the holding space 81 communicates with the outside world, and the rear end is a combination Later, it is sealed by the rear wall of the second shield 80 and is used for sandwiching and fitting the first shield 60. A plurality of retracting holes 82 corresponding to the free ends of the suspension elastic pieces 64 of the first shield 60 are formed on the top wall, bottom wall, and both side walls of the second shield 80, and the suspension elastic pieces 64 serve as shields for the corresponding connectors. Provides a space for retraction when pressing. The rear end of the bottom wall of the second shield 80 is opened, and an extension wall 83 extending downward is provided at the rear end of both side walls. An engagement hole 84 is formed at the rear end of each extension wall 83, and Fixing pins 85 extending downward are provided at both the front and rear ends of the bottom end, and are used for fixing the connector 100 having the shield of the present invention to an external board (not shown). The rear wall of the second shield 80 is integrally connected to the upper wall by a pair of connecting pieces 86. Before the assembly, the connecting piece 86 is parallel to the upper wall as shown in FIG. As shown in FIG. 3, it is bent perpendicular to the upper wall. Near the bottom ends on both sides of the rear wall, the wall is bent forward and extended to be provided with bent walls 87, and each of the bent walls 87 is provided with an engagement block 88 projecting outward.

  During assembly, the plurality of terminals 40 are fitted into the corresponding terminal grooves 23 of the plastic case 20, and then the plastic case 20 is aligned with the position of the insertion space 62 of the inner shield 60, and the inner shield 60 is pushed backward. At this time, the position restriction piece 66 of the inner shield 60 slides along the upper wall of the plastic case 20 and fits into the position restriction groove 21, thereby restricting the forward movement of the inner shield 60 relative to the plastic case 20. Then, the position limiting column 68 and the bottom wall of the inner shield 60 are placed in the positioning guide groove 26 and the first engagement groove 27 of the plastic case 20, so that the inner shield 60 moves backward with respect to the plastic case 20. Limited. Subsequently, the inner shield 60 is aligned with the holding space 81 of the outer shield 80 and is pushed backward by the outer shield 80. At this time, the inner wall surface of the outer shield 80 closely contacts the outer wall surface of the inner shield 60. The bottom wall of the outer shield 80 is placed in the second engagement groove 28 of the plastic case 20, thereby restricting the backward movement of the outer shield 80 relative to the plastic case 20. Finally, the rear wall of the outer shield 80 is bent downward, and each bent wall 87 is inserted into the cutout 25 of the plastic case 20. At this time, the outer wall surface of the bent wall 87 is the inner wall surface of the extending wall 83. , And the engagement block 88 of the bent wall 87 is engaged outwardly into the engagement hole 84 of the extending wall 83, thereby restricting the forward movement of the outer shield 80 relative to the plastic case 20.

  The connector 100 having the shield according to the present invention clearly increases the strength of the shield due to the shield design composed of the first shield 60 and the second shield 80 tightly covering the outside of the first shield 60. It is supposed to withstand a relatively large insertion / extraction force in the process of combination with the connector, and deformation and expiration do not occur. At the same time, when the engagement blocks 88 on both sides of the rear wall of the second shield 80 protrude outward and engage with the corresponding engagement holes 84, the fixing pins 85 on both sides of the second shield 80 are inserted into the external board. The engagement block 88 is engaged in the engagement hole 84 by the outward expansion of the bending wall 87 and the inward engagement of the extending wall 83, so that the second shield 80 can be reliably and firmly maintained from the beginning to the end. In the engaged state, the deformation of the shield is prevented from becoming invalid.

It is a three-dimensional combination diagram of the connector of the present invention. It is a three-dimensional exploded view of the connector of the present invention. It is another three-dimensional exploded view of the connector of this invention. It is a three-dimensional view before the combination of the 2nd shield of this invention.

Explanation of symbols

100 connector 20 shield 21 position limiting groove 22 tongue plate 23 terminal groove 24 bottom plate 25 notch 26 positioning guide groove 27 first engagement groove 28 second engagement groove 40 terminal 60 first shield 62 insertion space 64 suspension elastic piece 66 Position restriction piece 68 Position restriction column 80 Second shield 81 Holding space 82 Retraction hole 83 Extension wall 84 Engagement hole 85 Fixing pin 86 Connecting piece 87 Bending wall 88 Engagement block

Claims (7)

  A plastic case, a first shield, and a second shield are provided, the plastic case holds a plurality of terminals therein, an insertion space is formed in the first shield, the plastic case is inserted therein, A plurality of suspension elastic pieces are provided on one shield, and free ends of these suspension elastic pieces are bent and extended toward the insertion space, a holding space is formed inside the second shield, and the first shield described above A retracting hole corresponding to the suspension elastic piece of the first shield is provided in the second shield, and at least one fixing pin extending downward is formed at the bottom of the second shield. A connector with a shield.   2. A connector having a shield according to claim 1, wherein a positioning guide groove is formed on the outer surface of the plastic case, the front end of the position limiting groove is closed, the rear end communicates with the outside world, and is connected to the first shield. A connector provided with a shield, wherein a position limiting piece corresponding to the position limiting groove is provided, the position limiting piece is inclined downward and is fitted into the position limiting groove.   2. The connector having a shield according to claim 1, wherein a pair of juxtaposed bottom plates projecting forward is provided on the front end face of the plastic case, and a positioning guide groove is provided between the two bottom plates. The rear end of the groove is closed, the front end communicates with the outside world, the bottom wall of the first shield extends downward to form a position limiting column, and the position limiting column is inserted correspondingly into the positioning guide groove. A connector with a shield.   In the connector provided with the shield according to claim 1, the tongue plate is extended forward from the front end surface of the plastic case, a plurality of terminal grooves are formed in the tongue plate, and each of them accommodates the corresponding terminal. A bottom plate that protrudes further forward is formed on the front end surface of the plastic case, the bottom plate is positioned below the tongue plate, and a first engagement groove is formed between the bottom plate and the top front end of the bottom plate is recessed downward. And the rear end of the first engagement groove is closed, the front end communicates with the outside and the second engagement groove, and the bottom wall of the first shield is the first engagement groove. A connector with a shield, characterized in that the bottom wall of the second shield is placed in a second engagement groove.   The connector having a shield according to claim 1, wherein both side walls of the second shield are extended downward to form an extended wall, and the fixing pin is extended downward from the front and rear ends of the bottom end of each extended wall. A connector with a shield, characterized by   2. The connector having a shield according to claim 1, wherein extending walls are extended downward from both side walls of the second shield, engagement holes are provided in each extending wall, and near the bottom ends on both sides of the rear wall of the second shield are directed forward. A connector having a shield, wherein a bent wall is formed by being bent and stretched, and an engaging block protruding outward is formed on each bent wall to be engaged in the engaging hole. 2. The connector with a shield according to claim 1, wherein a notch is formed at the rear end of both side surfaces of the plastic case, and the bent wall enters into the corresponding notch.

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