JP2007227272A - Shield type plug connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent breakage or the like on a receptacle connector side when an excessive load is applied, in a fitting state with the receptacle connector. <P>SOLUTION: This connector comprises cushioning parts 19 and 20 which are located in positions covered with the tip part of a resin cover 21 of a shield case 13 and deform the shield case 13 to an excessive load in a state where the connector is fitted to the receptacle connector 2. Further, occurrence of a trouble on a main device side provided with the receptacle connector 2 can be reduced to prevent such a serious damage as to affect the whole system. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a shielded plug connector that is fitted into a receptacle connector mounted on a wiring board or the like to exchange various signals.

  A personal computer configures a system by connecting peripheral devices such as a display, a keyboard, or a mouse by a connector device that can exchange control signals and data and can also supply power. The connector device also has a basic configuration similar to that of a general connector device, and includes, for example, a receptacle connector mounted on a wiring board on the personal computer side and a plug connector connected to a peripheral device. The connector device connects a personal computer and a peripheral device by fitting a plug connector to the receptacle connector so that control signals, data, etc. are exchanged or power is supplied.

  As a general connector device, for example, disclosed in Patent Literature 1 to Patent Literature 4 and the like, the receptacle connector and the plug connector accommodate the respective contact blocks in a rectangular cylindrical shield case, and the receptacle connector side Fit the shield case on the plug connector side in the receiving shield case. With such a fitting structure, the connector device is configured such that the receptacle connector and the plug connector are mechanically protected and prevented from being mixed with electromagnetic noise in the fitting portion, and a reliable and simple fitting operation is performed. .

  In the conventional connector device 100, as shown in FIG. 7, a receptacle connector 101 is composed of, for example, a contact holding body formed of a synthetic resin material and a plurality of contacts on the contact holding body. Cover with a shield case made of thin metal plate assembled to the contact holder. In the connector device 100, the receptacle connector 101 positions the positioning projections formed on the contact holding body on the wiring board 102 by engaging the positioning holes, and solders each contact to the terminal portion provided on the wiring board 102. It is implemented by attaching. In the connector device 100, a receptacle connector 101 is provided on the personal computer side, for example, and the plug connector fitting portion faces a slot provided in the casing, and is soldered and mounted at the end of the wiring board 102. Is done.

  In the connector device 100, a plug connector 103 is provided on the other end side of the cable 104 connected to a peripheral device having one end side on the lower side. The plug connector 103 is also formed in a rectangular cylindrical shape by a contact holder formed of a synthetic resin material and a contact block formed by a plurality of contacts on the contact holder, and the contact block is assembled with a metal thin plate assembled to the contact holder. The shield case 105 is covered. The plug connector 103 is coupled to the receptacle connector 101 by fitting the shield case 105 into a slightly smaller cross-sectional shape than the shield case on the receptacle connector 101 side.

  The plug connector 103 covers the contact block and the shield case 105 with a resin cover 106 to maintain insulation and to provide mechanical protection. As shown in FIG. 7, the plug connector 103 is formed with a resin cover 106 that exposes a fitting portion of the shield case 105 with the receptacle connector 101.

In the connector device 100, the respective contacts of the receptacle connector 101 and the plug connector 103 come into contact with each other, and electrical connection with the receptacle connector 101 is performed. Thus, the connector device 100 connects the personal computer and the peripheral device so that control signals and data are exchanged, and power is supplied from the personal computer side to the peripheral device side. In the connector device 100, as described above, the receptacle connector 101 and the plug connector 102 are respectively provided as a fitting guide means with a shield case that is provided for each of them to provide mechanical protection and prevention of electromagnetic noise in the fitting portion. Since it is configured so that the fitting is performed, a reliable and simple fitting operation is performed. In the connector device 100, the receptacle connector 101 and the plug connector 103 cover the respective contact blocks with a shield case, so that damage due to external force can be prevented and it can be formed of a thin metal material. Can be made thinner and smaller.
Japanese Utility Model Publication No. 5-34679 JP 200431259 A JP 2004-87410 A JP-A-2005-71824

  By the way, in the connector device 100, the plug connector 103 is coupled to the receptacle connector 101 by fitting the exposed portion of the shield case 105 into the shield case on the receptacle connector 101 side, and is strongly pulled out. Removal is performed. In the connector device 100, when the plug connector 103 is inserted into and removed from the receptacle connector 101, the plug connector 103 is squeezed vertically or horizontally with a large force.

  In the connector device 100, for example, a large load is applied to the receptacle connector 101 from the plug connector 103 side due to forcible insertion / removal operation of the plug connector 103, and stress concentration occurs at the connection portion between the receptacle connector 101 and the wiring board 102. As a result, the soldered part may be peeled off or the wiring board 102 may be damaged. In the connector device 100, for example, the cable 104 is caught even in the connected state, and a large load is applied to the connecting portion between the plug connector 103 and the receptacle connector 101. Similarly, on the receptacle connector 101 side due to stress concentration. There was a risk of inconvenience.

  In the conventional connector device 100, as described above, an excessive load applied from the plug connector 103 side causes inconvenience on the main device side such as a personal computer provided with the receptacle connector 101. In the conventional connector device 100, the occurrence of such inconvenience may affect the entire system and cause great damage.

  Therefore, the present invention provides a shielded plug connector that prevents damage to the receptacle connector even when a large load is applied for some reason in a state of being fitted to the receptacle connector mounted on the main apparatus. It was proposed for the purpose of providing.

In the shielded plug connector according to the present invention that achieves the above-described object, the contact block is housed in the shield case, and the shield case is covered with the resin cover while exposing the fitting portion with the receptacle connector. The shield-type plug connector is located at a portion of the shield case that is covered by the tip portion of the resin cover, and buffers the load by deforming the shield case against an excessive load when it is fitted to the receptacle connector. A buffer portion is formed.

  In the shield type plug connector, the buffer portion is constituted by a pair of buffer slits formed by cutting the shield case so as to face each other from both sides in the width direction. In the shield type plug connector, when an excessive load is applied, the shield case is deformed through the buffer slit, thereby reducing the influence on the receptacle connector side and preventing the occurrence of breakage or the like.

  In addition, the shield type plug connector comprises a pair of caulking tongues facing each other in the width direction that are bent inward on the main surface of the shield case and prevent the contact block from coming off from the shield case. It is constituted by a horizontally oriented substantially H-shaped slit. In the case of a shielded plug connector, when an excessive load is applied, the shield case is deformed through the slit that forms the caulking tongue piece, thereby reducing the influence on the receptacle connector side and causing damage or the like. To prevent.

  The shield-type plug connector is formed with a pair of buffer slits formed by cutting the buffer part into the shield case from both sides in the width direction so as to face each other, and on the main surface of the shield case on the extension line of the buffer slit. It is comprised by the horizontal substantially H-shaped slit which comprises a pair of crimping tongue piece of the width direction which mutually opposes which prevents a contact block with respect to a shield case by being bent inward. In the shield type plug connector, when an excessive load is applied, the shield case is deformed through these slits, thereby reducing the influence on the receptacle connector side and preventing the occurrence of breakage or the like.

  In the shielded plug connector, the buffer portion is configured by a groove in the width direction formed so as to wrap around both side portions opposed to the main surface of the shield case. In the shield type plug connector, when an excessive load is applied, the shield case is deformed through the concave groove, thereby reducing the influence on the receptacle connector side and preventing the occurrence of breakage or the like.

  According to the shielded plug connector according to the present invention configured as described above, the receptacle case is deformed through the buffer portion when an excessive load is applied in the mated state with the receptacle connector, so that the receptacle Reduce the impact of the load on the connector side to reduce the occurrence of damage. According to the shield type plug connector, it is possible to reduce the occurrence of inconvenience on the main apparatus side provided with the receptacle connector even in the unlikely event and prevent the occurrence of a large damage that affects the entire system.

  Hereinafter, a connector device 1 including a shielded plug connector 10 shown as an embodiment of the present invention will be described in detail with reference to the drawings. The connector device 1 is also a connector device that constitutes a system by, for example, connecting a personal computer and a peripheral device to exchange control signals and data and supply power. The connector device 1 is also used between peripheral devices. Similarly, the upper device and the lower device are connected to exchange control signals and data, and supply power. The present invention can be applied not only to such a connector device but also to various connector devices for connecting various electronic devices.

The connector device 1 has a basic configuration similar to that of the connector device 100 described above, and as shown in FIGS. 1 and 2, a receptacle connector 2 mounted on a wiring board 3 on the personal computer side, a personal computer, and peripheral devices. It is comprised from the plug connector 10 provided in the cable 4 which connects the side. As shown in FIG. 1, the receptacle connector 2 is provided on the personal computer side, for example, and is mounted at the end of the wiring board 3 with the plug connector fitting portion facing a slot provided in the housing.

  Although the details of the receptacle connector 2 are omitted, for example, a contact holding body 5 formed of an insulating synthetic resin material and a plurality of contacts 6 are formed on the contact holding body 5, and the contact block is held in contact with the contact block 5. It is covered by a shield case 7 assembled to the body 5. In the receptacle connector 2, the shield case 7 is formed in a rectangular cylindrical shape by a thin metal plate, and the plug connector 10 and the contact block that are fitted in the fitting space portion of the plug connector 10 are electrically connected to each other. To be.

  In the receptacle connector 2, a plurality of positioning projections 8 formed integrally with the shield case 7 are passed through positioning holes formed on the wiring board 3 side. In the receptacle connector 2, each contact 6 is soldered to a terminal pattern (not shown) formed on the wiring board 3 by bending the tip portion protruding from the contact holding body 5 to the bottom surface side. 3 is implemented.

  In the connector device 1, the plug connector 10 is inserted into the slot and fitted into the receptacle connector 2 described above, thereby electrically connecting the personal computer and the peripheral device. As will be described later, the plug connector 10 has the same basic structure as that of the conventional plug connector 103 described above, and the connection portion is detailed on the other end side of the cable 4 connected to the peripheral device whose one end side is the lower side. Is provided by being shielded by a shield bush 9. Although details of the plug connector 10 are omitted, a plurality of plug connector contacts corresponding to the respective contacts 6 on the receptacle connector 2 side are integrated with a contact holding body formed of an insulating synthetic resin material to form a contact block 11 (FIG. 4). The contact block 11 is held in a holder member 12 formed in a channel shape with a metal material as shown in FIGS.

  As shown in FIGS. 2 to 4, the plug connector 10 is configured to cover the entire contact block 11 by combining a shield case 13 with the holder member 12. The shield case 13 is integrally formed of a metal thin plate as a raw material, and has a channel-shaped main body portion 14 to be combined with the holder member 12 and a rectangular cylindrical fitting tube formed in a front portion of the main body portion 14. Part 15 and a cable holding part 16 formed in the rear part of the body part 14 opposite to each other. As shown in FIG. 3, the shield case 13 engages the engaging protrusions 14 </ b> A formed on the rising side surface of the main body 14 with the engaging holes 12 </ b> A formed on the rising side surface of the holder member 12, thereby 12 is integrated.

  As shown in FIG. 4, the shield case 13 has a fitting cylinder portion 15 having a slightly smaller diameter than the opening size of the shield case 7 on the receptacle connector 2 side and a slightly longer axis than the shield case 7. Then, the contact block 11 is accommodated in the interior facing the front end opening. The shield case 13 is provided with a lock body 17 having a distal end portion provided with a protruding behavior from the side surface by a spring mechanism (not shown). As will be described in detail later, the lock body 17 has a lock groove formed at the front end portion so as to face the shield case 7 on the receptacle connector 2 side as shown in FIG. 2 in a state in which the plug connector 10 is fitted to the receptacle connector 2. The mating state of the plug connector 10 and the receptacle connector 2 is maintained by engaging with 7A.

The shield case 13 has a pair of caulking tongue pieces 18A and 18B for fixing the contact block 11 housed therein to the main surface of the fitting cylinder portion 15 (the caulking tongue piece 18 and the caulking tongue piece 18 unless otherwise described below). Are collectively referred to). As shown in FIG. 3, the caulking tongue piece 18 is formed in the main surface of the fitting tube portion 15 protruding from the main body portion 14 with a laterally substantially H-shaped slit 19 located at a substantially central portion in the width direction. The pair of tongue pieces in the width direction facing each other left by the slit 19 are formed. As shown in FIGS. 3 and 4, the shield case 13 squeezes each contact tongue 11 by pressing each crimping tongue piece 18 inwardly against the contact block 11 accommodated therein.

  In the shield case 13, a pair of buffer slits 20 </ b> A and 20 </ b> B (hereinafter collectively referred to as the buffer slit 20 except when individually described) are formed in the fitting cylinder portion 15. When the plug connector 10 is fitted to the receptacle connector 2 and an excessive load is applied to the plug connector 10 from the outside, the buffer slit 20 buffers the load to reduce the influence on the receptacle connector 2 side. To do. As shown in FIG. 3, the buffer slits 20 are formed in the shield case 13 so as to be opposed to each other from both sides in the width direction of the base end portion protruding from the main body portion 14 of the fitting cylinder portion 15.

  That is, the shield case 13 is formed with the buffer slits 20 on both side portions of the fitting tube portion 15 so as to straddle the principal surfaces that are located on the same axis and face each other, although the details are omitted. In the shield case 13, the slit 19 constituting the caulking tongue piece 18 described above is also formed on the axis line forming each buffer slit 20. Therefore, the shield case 13 is configured in a structure in which the mechanical strength is reduced by forming the slits 19 and the buffer slits 20 at the base end portion of the fitting tube portion 15 on the same axis. . Of course, the shield case 13 has a mechanical strength at which the fitting tube portion 15 does not deform or break along the slits 19 and the buffer slits 20 in normal handling.

  In the shield case 13, when an excessive load is applied to the plug connector 10 from the outside, the fitting cylinder portion 15 can be easily formed as shown in FIG. 5 using the slit 19 and each buffer slit 20 as a guide. Bend it. Therefore, in the shield case 13, an excessive load is absorbed by the bending operation of the fitting cylinder portion 15 so that a large force due to the excessive load is not applied to the receptacle connector 2. In the shield case 13, a buffer structure with an excessive load is configured by the slit 19 and the pair of buffer slits 20 that constitute the caulking tongue piece 18. Any one of the slits may constitute a buffer slit depending on the bonding strength of the receptacle connector 2 with respect to.

  In the shield case 13, the cable holding portion 16 is protruded integrally with the main body portion 14 deviating to the approximate center of the opposite rear portion. As shown in FIG. 3, the cable holding portion 16 is bent in a cylindrical shape so as to penetrate the outer peripheral portion of the cable 4, and is caulked and stopped by being reduced in diameter.

  The plug connector 10 is covered with the shield case 13 described above by outsert molding a resin cover 21 made of an insulating synthetic resin on the outer periphery. As shown in FIGS. 2 and 4, the resin cover 21 is integrally formed with the shield case 13 so as to cover the main body 14 and the cable holding portion 16 by exposing the fitting cylindrical portion 15. . The resin cover 21 maintains the insulation and rust prevention of the shield case 13 and improves the mechanical strength of the plug connector 10.

The resin cover 21 is formed so as to cover the slit 19 and the buffer slit 20 constituting the caulking tongue piece 18 described above at the proximal end portion of the fitting cylinder portion 15. The resin cover 21 is formed so as to cover the slit 19 and the buffer slit 20 as described above, thereby preventing entry of dust and the like into the fitting tube portion 15 and maintaining the appearance of the plug connector 10. Like that. The resin cover 21 reinforces the fitting cylinder portion 15 whose mechanical strength is reduced by forming the slit 19 and the buffer slit 20. The resin cover 21 closes the inner peripheral portion of a slot provided in the housing, for example, in a state where the fitting cylinder portion 15 is fitted in the shield case 7 and the plug connector 10 is fitted to the receptacle connector 2. To.

  In the connector device 1 configured as described above, the plug connector 10 provided on the cable 4 connected to the peripheral device is connected to the personal computer with the fitting cylinder portion 15 exposed from the resin cover 21 as the fitting side. By being inserted into the provided slot, it is fitted to the receptacle connector 2 mounted on the wiring board 3 so as to face the slot. In the connector device 1, when the fitting cylinder portion 15 of the plug connector 10 is pushed into the fitting space portion of the shield case 7 on the receptacle connector 2 side, the plug contact provided in the fitting cylinder portion 15 is Each is connected to an opposite receptacle contact 6.

  Also in the connector device 1, as described above, the receptacle connector 2 and the plug connector 10 are respectively provided, and the shield cases 7 and 13 are provided for fitting the shield cases 7 and 13 for the purpose of mechanical protection and prevention of electromagnetic noise in the fitting portion. Since the fitting is performed as the means, a reliable and simple fitting operation is performed. Also in the connector device 1, since the receptacle connector 2 and the plug connector 10 cover the respective contact blocks with the shield cases 7 and 13, damage due to external force can be prevented and a thin metal material can be used. Thus, the overall thickness and size can be reduced. In the connector device 1, the fitting state between the receptacle connector 2 and the plug connector 10 is maintained by the lock mechanism in which the lock body 17 is engaged with the lock groove 7 </ b> A as described above.

  In the connector device 1, a personal computer and peripheral devices are connected via a cable 4 to exchange control signals and data or supply power. By the way, in the connector device 1, when the receptacle connector 2 and the plug connector 10 have a tight fitting condition between the shield case 7 and the fitting cylinder portion 15, for example, the plug connector 10 is moved up and down or left and right during the insertion / removal operation. A large operating force is applied in the direction. Further, in the connector device 1, for example, a situation in which a large pulling force is applied to the plug connector 10 may occur by hooking the cable 4 or the like.

  In the connector device 1, even when a very large load is applied to the plug connector 10 from the outside in a state where the plug connector 10 is fitted to the receptacle connector 2, a pair of the slit 19 constituting the caulking tongue piece 18 is paired with the slit 19. A buffer structure constituted by the buffer slit 20 is used for buffering and the receptacle connector 2 reduces the influence on the side. In the connector device 1, when an excessive load is applied to the plug connector 10, the fitting tube portion 15 is deformed at a site where the slit 19 and the pair of buffer slits 20 are formed as shown in FIG. 5. In the connector device 1, an excessive load is buffered by the deformation operation of the fitting cylinder portion 15 so that a direct influence on the receptacle connector 2 is reduced.

  Therefore, in the connector device 1, the occurrence of peeling of the solder connector that fixes the receptacle connector 2 itself or the contact 6 to the wiring board 3 is suppressed. In the connector device 1, it is possible to prevent the occurrence of large damage that affects the entire system by reducing the occurrence of damage on the personal computer side that performs expensive and complicated control for an excessive load. And

In the above-described embodiment, the buffering structure including the slit 19 and the buffering slit 20 is formed on the fitting cylinder portion 15 that constitutes the fitting portion of the plug connector 10 with the receptacle connector 2. However, the present invention is not limited to such a configuration. In the plug connector 30 shown in FIG. 6 as the second embodiment, the shield case 31 is formed integrally with the main body portion 32, the fitting cylindrical portion 33 formed integrally with the front portion thereof, and the rear portion. Cable holding portion 34. Since the plug connector 30 has the same basic configuration as the plug connector 10 described above except for the shield case 31, the description thereof is omitted by attaching the same reference numerals to the corresponding portions.

  As shown in FIG. 6, the shield case 31 has a V-shaped cross section so as to wrap around the opposite side portions 33C and 33D on the main surfaces 33A and 33B of the fitting tube portion 33 protruding from the main body portion 32. A buffer groove 35 is formed. The shield case 31 is configured to have a structure in which the thickness at the portion is reduced by the buffer groove 35 and the mechanical strength is reduced. The buffer groove 35 is formed in the main surfaces 33A and 33B with such a depth that the fitting tube portion 33 is maintained at a mechanical strength that does not cause deformation or breakage in normal handling.

  Also in the plug connector 30, the shield case 31 is covered with the body portion 32 and the cable holding portion 34 by the resin cover 21 that is outsert molded except for the fitting tube portion 33. Also in the plug connector 30, the resin cover 21 is formed so as to cover the buffer groove 35 described above at the base end portion of the fitting cylinder portion 33.

  In the plug connector 30 configured as described above, the buffer groove 35 is formed in the fitting tube portion 33 as described above, so that a very large load is applied from the outside in the state of being fitted to the receptacle connector 2. In this case, the fitting tube portion 33 is deformed or broken along the buffer groove 35. Therefore, in the plug connector 30, an excessive load is buffered by the deformation operation of the fitting tube portion 33 so that a direct influence on the receptacle connector 2 is reduced.

  In addition, this invention is not limited to the buffer structure mentioned above, Of course, the structure which formed the perforation etc. in the base end part of the fitting cylinder part of a shield case may be sufficient. In addition, it goes without saying that the present invention extends to the shield type plug connector according to the present invention with various modifications without departing from the essence of the present invention.

It is a principal part disassembled perspective view of the connector apparatus using the plug connector concerning this invention. It is a principal part disassembled perspective view of the connector apparatus of the state which fitted the plug connector to the receptacle connector. It is a principal part perspective view of the plug connector shown by removing the resin cover. It is principal part sectional drawing of a plug connector. It is principal part sectional drawing of the plug connector by which the excessive load was acted and the fitting cylinder part deform | transformed. It is a principal part perspective view of the plug connector shown by removing the resin cover shown as 2nd Embodiment. It is a principal part disassembled perspective view of the conventional connector apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Connector apparatus 2 Receptacle connector 3 Wiring board 4 Cable 5 Contact holding body 6 Receptacle contact 7 Shield case 10 Plug connector 11 Contact block 12 Holder member member 13 Shield case 14 Body part 15 Fitting cylinder part 16 Cable holding part 18 Caulking tongue piece 19 Slit 20 Buffer Slit 21 Resin Cover 30 Plug Connector 31 Shield Case 32 Body Part 33 Fitting Tube Part 34 Cable Holding Part 35 Buffer Groove

Claims (6)

In the shield type plug connector in which the contact is stored in the shield case, and the shield case is covered with the resin cover by exposing the fitting portion with the receptacle connector,
A buffer portion that is located at a portion of the shield case that is covered by the tip portion of the resin cover and that deforms the shield case against an excessive load in a state of being fitted to the receptacle connector is formed. Shield type plug connector.   The shield type plug connector according to claim 1, wherein the buffer portion is constituted by a pair of buffer slits formed by cutting the shield case from both sides in the width direction so as to face each other.   The buffer portion is bent inwardly on the main surface of the shield case to form a pair of caulking tongue pieces in the width direction that face each other and prevent the contacts from coming off from the shield case. The shield type plug connector according to claim 1, wherein the shield type plug connector is configured by a slit.   The buffer portion is formed by a pair of buffer slits formed by cutting the shield case from both sides in the width direction so as to face each other, and an inner side formed on the main surface of the shield case on an extension line of the buffer slit. It is comprised by the horizontal substantially H-shaped slit which comprises a pair of the crimping tongue piece of the width direction which mutually opposes by which it is bent to the said shield case, and the said contact is prevented from falling out. The shield type plug connector according to claim 1.   The shield-type plug connector according to claim 1, wherein the buffer portion is configured by a groove in a width direction formed so as to wrap around both side portions opposed to the main surface of the shield case. 6. The shield type plug connector according to claim 1, wherein the resin cover is integrated with the shield case by integral molding.

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