TW201742338A - USB connector - Google Patents

Abstract

To make it possible to stabilize a paddle card with a simple constitution. A conductive shell (13) covering at least part of an insulated housing (11) is provided with a pair of shell protrusions (13b, 13b) in contact with both sides of a paddle card (P) so as to sandwich the paddle card (P). The paddle card (P) is held strongly sandwiched between the pair of shell protrusions (13b, 13b) from both sides, and the paddle card (P) is held stably even when the USB connector is mated to another connector (20), giving a constitution having an excellent signal transfer function.

Description

USB connector

The present invention relates to a USB connector in which a switching card to which a signal transmission medium is coupled is connected to a contact member, and the contact member is electrically connected to other connectors of the fitting object.

There are various specifications regarding the specifications of the USB connector. However, in recent years, a USB connector called a C-type (Type-C) has been used, which has a configuration in which the structure is symmetrical by up, down, left, and right. Can be inserted in one direction. In such a C-type USB connector, a switching card (relay substrate) connected to a signal transmission medium such as a coaxial cable is disposed inside the conductive casing. Further, the contact portion of the contact member attached to the insulating case is electrically connected to the electrode portion formed on the switching card by solder bonding or the like, and the USB connector is fitted to other objects. In the state of the connector, the other contact portions of the contact member are in electrical contact with the other object connectors.

Here, in the USB connector of the general C-type specification, the switching card is held in a cantilever shape by inserting the edge portion of the switching card into the concave nip provided in the insulating case. Therefore, it is considered that the holding force of the switching card is rapidly lowered and the posture of the switching card becomes unstable when the holding force of the insulating case is scratched in addition to the insufficient holding force for the switching card. There is a problem that causes reliability in electrical connection.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2015-230770

[Patent Document 2] Japanese Utility Model Registration No. 3195845

Accordingly, it is an object of the present invention to provide a USB connector capable of stably maintaining the posture of a switching card with a simple configuration.

In order to achieve the above object, the invention of claim 1 is a USB connector comprising: an insulative housing; a conductive outer casing covering at least a portion of the insulative housing; and an insulative housing mounted to the insulative housing and electrically connected to the mating object The contact member of the other connector is configured such that the contact member is connected to at least one of both surfaces of the switching card to which the signal transmission medium is coupled, and the conductive housing has a pair of housing protrusions, and the pair The housing protrusion abuts on both sides of the switching card to lock the switch card.

According to the invention of claim 1 having the above configuration, since one of the conductive housings is firmly held by the housing projections so as to be clamped from both sides, even when the USB connector is fitted to other connectors, It can also stably maintain the posture of the switching card and obtain a good signal transmission function.

In the case of the invention of claim 2, it is preferable that the portion where the outer casing protruding portion abuts against the switching card is disposed in a state in which the contact member is in contact with the contact member. The portion of the switch card is displaced in the direction in which the signal is transmitted.

According to the invention of claim 2 of the above configuration, since the switching card is held in the direction in which the signal is transmitted by the contact member and the housing projection, even if the switching card is given a deflection as in the thickness direction, In the case of a force other than the impact direction, the posture of the switching card is also well stabilized.

Further, in the invention of claim 3, it is preferable that the outer casing protrusion portion includes a case contact portion, and the case contact portion is electrically connected to a ground lead circuit provided in the switch card.

According to the invention of claim 3 having the above configuration, since the conductive casing is grounded via the casing projection, the grounding function is enhanced.

Further, in the invention of claim 4, it is preferable that the side latch is provided, and the side latch is engaged with the ground contact portion of the other connector, and the ground connection is performed while maintaining the fitting state, and the side latch is provided And a first latch contact portion electrically connected to the grounding guide circuit provided on the switching card, and a second latch contact portion connected to the conductive housing.

According to the invention of claim 4 having the above configuration, since the first and second latch contact portions are connected to each other via the side latch, the grounding function is enhanced, and the first latch is touched via the side latch. Keep the switch card more stable at the point.

Further, in the invention of claim 5, it is preferable that the insulating case includes a case protrusion, and the case protrusion is opposed to the first latch contact portion via the switching card, and The first latch contact portion and the housing projection sandwich the switch card.

According to the invention of claim 5 having the above configuration, since the holding force of the first latch contact portion of the side latch is further enhanced by the housing projection, the posture of the switching card is further improved.

As described above, the present invention has a configuration in which the posture of the switching card can be stabilized with a simple configuration, that is, the conductive casing covering at least a part of the insulating case is placed in contact with both sides of the switching card. The switching card is one of the clamped state and the housing protrusion, and the switch card is firmly held by the pair of housing protrusions, and can be stably maintained even when the USB connector is fitted to other connectors. Switch the card position and get a good signal transmission function.

10‧‧‧ plug connector

11‧‧‧Insulated housing

11a‧‧‧ housing projections

12‧‧‧Contact members

12a‧‧‧ front side contact

12b‧‧‧Back end contact

13‧‧‧Electrically conductive housing

13a‧‧‧Grounding lug

13b‧‧‧ housing projections

14‧‧‧ Side latch

14a‧‧‧Link board

14b‧‧‧Care Department

14c‧‧‧Ground connection

14d‧‧‧1st latch contact

14e‧‧‧2nd latch contact

20‧‧‧ jack connector (other connectors)

P‧‧‧Switch card (relay board)

Electrode part for P1‧‧‧ signal transmission

P2‧‧‧Electrode parts for grounding

Fig. 1 is a perspective view showing the appearance of a USB connector according to an embodiment of the present invention from the upper side of the rear side of the connector.

Fig. 2 is a perspective view showing the appearance of the USB connector shown in Fig. 1 from the upper side of the front side of the connector.

3 is a top plan view of the USB connector shown in FIGS. 1 and 2.

4 is a front view of the USB connector shown in FIGS. 1 to 3.

FIG. 5 is a rear view of the USB connector shown in FIGS. 1 to 4.

Figure 6 is a side elevational view of the USB connector shown in Figures 1 through 5.

Fig. 7 is a perspective view showing the appearance of the internal structure in which the conductive case and the insulating case in the USB connector shown in Figs. 1 to 6 are removed.

Fig. 8 is an external perspective explanatory view showing a single side of the connector width direction of the rear end portion of the USB connector shown in Figs. 1 to 6 in an enlarged manner.

Figure 9 is a view showing the appearance of the state in which the USB card of the USB connector shown in Figs. 1 to 8 is mounted with a switching card. Body diagram.

Fig. 10 is an external perspective explanatory view showing a portion indicated by IX in Fig. 9 in an enlarged manner.

Fig. 11 is a view showing the USB connector in which the switching card is mounted in Fig. 9;

Fig. 12 is an external perspective view showing an enlarged side view of a connector in a width direction of a rear end portion of the USB connector to which the switch card is attached.

Fig. 13 is a perspective external perspective view showing a state in which the USB connector shown in Figs. 1 to 8 is fitted to a receptacle connector (other connector) to be fitted.

Fig. 14 is a plan explanatory view showing a state in which the jack connector (other connector) shown in Fig. 13 is fitted to the USB connector.

Fig. 15 is a view showing the fitting state of the jack connector (other connector) shown in Figs. 13 and 14 and the USB connector.

Fig. 16 is a view showing a state in which the jack connector (other connector) shown in Figs. 13 to 15 is fitted to the USB connector, and is a side view showing the internal structure by breaking a part of the USB connector. .

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

[About the overall structure of the USB connector]

The plug connector 10 according to the embodiment of the present invention shown in FIGS. 1 to 8 includes an insulating case 11 made of an insulating resin material in a thin hollow box shape, and a hollow interior of the insulating case 11 The space is arranged such that the sub-housing (not shown) of the plurality of contact members 12 is held in a multi-pole manner across the upper and lower stages. Further, the metal member of the thin plate that holds the insulating case 11 and the sub-housing of the contact member 12 from the outer side is composed of a hollow box-shaped bent body The conductive outer casing 13 is attached so as to surround the insulating case 11.

Further, in the hollow interior of the insulating case 11, for example, as shown in Fig. 7, a connecting plate having a pair of side latches 14, 14 formed of a press member of a metal member of a thin plate is similarly (see Fig. 7). The symbol 14a) is attached so as to be sandwiched between the upper and lower sub-casings. The pair of side latches 14 and 14 are configured to be engaged with the jack connector (other connector) 20 as a fitting object (see FIGS. 13 and 14) as will be described later. One portion of the jack connector 20.

In other words, the plug connector 10 of the present invention has a configuration in which a jack connector that is fitted to a printed wiring board (not shown) is fitted as shown in FIG. 13 to FIG. In the other connector 20, the fitting is performed along the extending direction of the surface of the printed wiring board. Here, in the following, the plug connector 10 is fitted in the direction of the receptacle connector 20 as another connector, that is, the direction in which the surface of the printed wiring board extends, and is referred to as "horizontal direction".

Further, when the plug connector 10 is fitted or detached, the front end portion of the plug connector 10 is inserted into the jack connector (other connector) 20 or removed from the jack connector 20, The direction in which the plug connector 10 is fitted and removed in this manner is referred to as "the front-rear direction of the connector", the direction of the fitting is set to "the front of the connector", and the direction of the removal is set to "the rear of the connector". Further, the front end portion of the plug connector 10 inserted into the jack connector 20 is referred to as a "connector front end portion", and the opposite side portion is referred to as a "connector rear end portion". Further, the "signal transmission" performed by the plug connector 10 and the jack connector 20 in the present embodiment is performed in the "connector front-rear direction".

On the other hand, the above-mentioned contact member 12 is arranged in a multi-pole arrangement. The direction of the "horizontal direction" is the "connector width direction" which is substantially orthogonal to the "connector front-back direction" in which the plug connector 10 is fitted and removed. In addition, the direction orthogonal to the "multi-pole array direction", that is, the "connector width direction" and the "connector front-rear direction" is the "connector height direction", and the direction away from the surface of the printed wiring board Set to "upward direction" and set the direction near the surface of the printed wiring board to "downward direction".

For example, as shown in FIG. 9, a "switching board rear end portion" of the plug connector 10 is connected to a switching card (relay board) P to which a signal transmission medium such as a coaxial cable is connected (not shown ). In the electrode portion P1 for signal transmission formed on both sides of the front and rear sides of the switching card P, the end portion of the contact member 12 is connected. Further, the electrode portion P2 for grounding formed on both sides of the front and back sides of the switching card P is electrically connected to the end portion of the side latch 14 by solder bonding, and is provided in a later-described portion. One of the conductive outer casings 13 is opposed to the outer casing projections 13b, 13b.

[About contact members]

As described above, the contact members 12 that are disposed across the upper and lower stages are respectively held by the upper and lower sub-casings (not shown), and are in cantilever-like contact from the sub-casings in the "rear direction of the connector". The front end portion of the member 12 is mounted in a state of being accommodated in a plurality of contact mounting grooves (not shown) formed in the insulating case 11 so as to extend in the "front-rear direction of the connector". In other words, the contact mounting grooves are formed on the inner wall portion which is formed above and below the hollow portion of the insulating case 11 so as to face the upper and lower sides in the "connector height direction" with the hollow portion interposed therebetween. Further, the cantilever-like projecting portion of the contact member 12 attached to the upper and lower two-stage contact mounting grooves is also connected to the upper and lower sections in the "connector height direction" via the hollow portion of the insulating casing 11 to "connect" The front and rear directions are extended, and the upper and lower contact structures are arranged. The members 12 and 12 are arranged symmetrically with each other in the "connector height direction".

In this way, the front end portion and the rear end portion of the "connector front-rear direction" in each of the contact members 12 are extended from the contact mounting groove of the insulating housing 11 toward the front side and the rear side, respectively, and are extended at the end portion. For example, as shown in FIG. 7, the front end side contact portion 12a and the rear end side contact portion 12b are disposed in such a manner that the upper and lower contact members 12 and 12 are close to each other. The front end side contact portion 12a and the rear end side contact portion 12b are configured to be elastically displaced so as to approach or separate from each other in the "connector height direction" based on the elasticity of the contact member 12.

Further, when the plug connector 10 is fitted to the jack connector (other connector) 20, the front end side contact portion 12a of the contact member 12 is opposed to the electrode portion provided in the jack connector 20 (refer to FIG. 16). The configuration relationship is elastically abutted and electrically connected. Further, after the contact member 12, the end side contact portion 12b is configured to be electrically connected to the electrode portion P1 for signal transmission of the switching card (relay substrate) P by solder bonding in abutment state.

[About conductive housing]

On the other hand, in the front end portion of the conductive outer casing 13, for example, as shown in FIG. 2, a horizontally long front end opening portion fitted to a receptacle connector (other connector) 20 as a fitting target is provided. A plurality of the ground connection pieces 13a are provided in a tongue-like manner at the front end opening portion. Each of the ground connection pieces 13a is configured such that when the plug connector 10 is fitted to the receptacle connector (other connector) 20, it is electrically fitted to the ground terminal provided on the side of the receptacle connector 20 ( Omit the illustration).

Further, the front end side contact portion 12a of the upper and lower two-stage contact members 12 is, for example, as shown in FIG. 4, by the front end opening portion provided at the front end portion of the conductive outer casing 13. The state exposed to the front side of the connector. Further, in the rear end portion of the conductive outer casing 13, a horizontally long rear end opening portion is similarly provided, and the rear end contact portion 12b is formed by the rear end opening portion 12, for example, as shown in FIG. As shown, it is in a state of protruding toward the rear side of the connector.

Further, the portion between the end contact portions 12b and 12b which protrudes outward from the lower end portion of the contact member 12 by the end opening portion of the conductive outer casing 13 in this manner is, for example, connected as shown in FIG. A switching card (relay substrate) P of a signal transmission medium (not shown) such as a coaxial cable is inserted from the rear side of the connector toward the front side. After the contact member 12, the end contact portions 12b and 12b are joined to the electrode portion P1 for signal transmission formed on both sides of the front and rear sides of the switch card P by the solder material from the upper and lower sides, thereby constituting the signal transmission circuit. . At this time, the rear end side contact portion 12b can be soldered at one time in the direction of the multipolar array.

Further, as described above, the plate-shaped outer casing projections 13b are provided on both side portions of the end edge portion of the conductive outer casing 13 in the "connector width direction" so as to protrude toward the "connector rear side". For example, as shown in FIG. 8, each of the outer casing protrusions 13b is formed so as to form a part of the outer wall portion of the end opening portion of the conductive outer casing 13, and one side portion of the "connector width direction" is provided. The outer casing protrusions 13b and 13b have a shape that is symmetrical with each other in the "connector height direction". The one-side pair of outer casing projections 13b and 13b have a shape having a top portion facing each other, and a housing contact portion as a ground contact portion is formed at each of the top portions protruding in the mutually approaching directions.

In other words, the end portion of the switching card (relay substrate) P is inserted from the rear side of the connector toward the front side as shown in FIG. 9 in the portion between the pair of the one-side housing projections 13b and 13b. Installed in such a manner that the outer casing of the pair of outer casing protrusions 13b, 13b on the one side is touched The point portion is joined to the grounding electrode portion on both sides of the "connector width direction" formed on both sides of the front and back sides of the switching card P by a solder material in a state in which the portion is abutted from the connector height direction. P2. Thereby, the edge portion of the switching card P is sandwiched between the pair of outer casing protrusions 13b and 13b on one side to be in a fixed state, and constitutes a ground circuit.

The outer casing protruding portion 13b of the electrode portion P2 for grounding of the switching card (relay substrate) P is configured such that it is disposed with respect to the electrode portion P1 for signal transmission that abuts against the switching card P. In the state in which the end contact portion 12b of the contact member 12 is slightly displaced toward the "rear connector side" side, the contact member 12 and the case projection portion 13b are in the direction of signal transmission, that is, "connector front-rear direction". By keeping the switching card P, the posture of the switching card P is well stabilized even when the switching card P is given a force other than the so-called impact direction which is deflected in the thickness direction.

[about side latch]

On the other hand, the side latch 14 is disposed such that the contact members 12 on both sides in the multi-pole array direction (contact width direction) protrude outward in the direction, for example, as shown in FIGS. The flat connecting plate 14a in which the pair of side latches 14 and 14 are integrally connected to each other is placed in the upper and lower sub-shells in a state of being disposed inside the hollow portion of the insulating case 11 The way the bodies are fixed to each other. Further, the pair of side latches 14, 14 are oriented toward the "connector width direction" at both end edges of the "connector width direction" of the connecting plate 14a disposed inside the hollow portion of the insulating case 11. In addition, the other side latches 14 are cantilevered in the "horizontal direction" toward the "connector front side" and are elastically displaceable.

In the front end portion of the extending side (front side) of each of the side latches 14, the hook-shaped engaging portions 14b are respectively oriented toward the inner side in the "connector width direction" (the connector center) Side) is set to stand out. Each of the engaging portions 14b is configured such that when the plug connector 10 is fitted to the jack connector 20 as another connector, it is engaged with the recessed side from the "connector width direction". The locking portion (not shown) provided inside the receptacle connector 20 is configured to maintain the fitting state of the two connectors 10 and 20 to each other.

At this time, a ground contact portion is formed in a locking portion (not shown) provided in the jack connector (other connector) 20, and the plug connector 10 is fitted into a jack as another connector. When the engaging portion 14b of each side latch 14 is engaged with the locking portion on the side of the receptacle connector 20, the connector 20 constitutes a ground circuit as follows via the side latch 14.

In other words, first, at the both end edges of the "connector width direction" of the flat connecting plate 14a, the ground connecting portion 14c is oriented from a portion close to the "connector rear" with respect to each side latch 14 The way of extending the "rear behind the connector" side is set separately. A first latch contact portion 14d serving as a ground contact portion is provided at an extending end portion of each of the ground connection portions 14c, and the first latch contact portion 14d provided in the ground connection portion 14c is in contact with each other. The grounding electrode portion P2 (see FIG. 9) formed on both sides of the "connector width direction" of the one surface (upper surface) of the switching card P is joined by a solder material.

The electrode portion P2 for grounding of the switching card (relay substrate) P to which the first latch contact portion 14d is joined, and the electrode portion for signal transmission after the contact member 12 is joined to the end side contact portion 12b P1 has a pair on both sides of the "connector width direction".

Corresponding to the first latch contact portion 14d of the ground connection portion 14c, for example, as shown in FIG. 8, the housing case 11a is provided in the insulating case 11. The housing projection 11a is configured such that it is disposed at a position below the first latch contact portion 14d so as to face each other in the "connector height direction" via a switching card (relay substrate) P. , at the first latch contact A switching card P is sandwiched between a portion between the portion 14d and the housing projection 11a.

Further, at the rear end portion of each of the side latches 14, for example, as shown in FIG. 10, the second latch contact portion 14e that is electrically connected to the inner wall surface of the electric housing 13 is electrically formed as a protruding piece. Settings. The second latch contact portion 14e is configured to be grounded via the case protrusion 13b of the electric housing 13.

According to the present embodiment having the above-described configuration, one of the conductive housings 13 is provided to the housing projections 13b and 13b so that the switching card (relay substrate) P is firmly held from the front and back sides, so that even the plug When the connector 10 is fitted to the jack connector (other connector) 20 (see FIGS. 13 to 16), the posture of the switching card can be stably maintained, thereby obtaining a good signal transmission function.

In particular, the case protrusion portion 13b in the present embodiment is disposed in a state in which the contact member 12 is in contact with the portion of the switching card (relay substrate) P in the direction of signal transmission (front and rear of the connector). Therefore, the switching card (relay substrate) P is held in the direction in which the signal is transmitted (the front-rear direction of the connector) by the contact member 12 and the housing projection 13b, even if the switching card P is given as in the thickness direction. In the case of a so-called force other than the impact direction, the posture of the switching card P is also well stabilized.

Further, in the present embodiment, the case protrusion portion 13b provided in the conductive case 13 is provided with a case contact portion that is electrically connected to the ground electrode portion P2 provided on the switching card (relay substrate) P. Therefore, the ground connection of the conductive outer casing 13 is performed via the outer casing protrusion 13b, and the grounding function is enhanced.

Further, in the present embodiment, the engaging portion 14b of the side latch 14 is engaged with a locking portion (not shown) provided in the jack connector (other connector) 20 to be fitted. The side latch 14 of the present embodiment includes the first electrode ground portion P2 that is in contact with the grounding electrode portion P2 of the switching card (relay substrate) P and is grounded for the first time. The latch contact portion 14d and the second latch contact portion 14e are connected to the conductive housing 13. Thereby, the switching card P is more stably held via the first latch contact portion 14d of the side latch 14, and is grounded via the first and second latch contact portions 14c and 14d of the side latch 14, thereby Enhance the grounding function.

Further, the insulating case 11 of the present embodiment includes the case protruding portion 11a facing the first latch contact portion 14d via the switching card (relay substrate) P, and thus the first latch of the side latch 14 The holding force of the lock contact portion 14d is stably obtained by the housing protrusion portion 11a, and the posture of switching the card P is further improved.

The invention made by the inventors of the present invention has been specifically described above, but the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit and scope of the invention.

For example, in the above embodiment, the contact member is in contact with both the front and back surfaces of the switch card, but the contact member may be in contact with only one side of the switch card.

[Industrial availability]

The present invention can be widely applied to various USB connectors used in various electrical devices.

12b‧‧‧Back end contact

13‧‧‧Electrically conductive housing

13b‧‧‧ housing projections

14‧‧‧ Side latch

14c‧‧‧Ground connection

14d‧‧‧1st latch contact

14e‧‧‧2nd latch contact

Electrode part for P1‧‧‧ signal transmission

P2‧‧‧Electrode parts for grounding

Claims (5)

A USB connector comprising: an insulative housing; a conductive housing covering at least a portion of the insulative housing; and a contact member mounted to the insulative housing and electrically connected to other connectors of the mating object, and The contactor is connected to at least one of both sides of the switching card to which the signal transmission medium is connected, and the USB connector is characterized in that the conductive housing includes a pair of housing protrusions, and the pair of housing protrusions abuts The two sides of the switch card are used to make the switch card in a clamped state. The USB connector of claim 1, wherein the portion of the housing protrusion that abuts against the switching card is disposed in a state in which the signal is transmitted to a portion of the switching member that abuts against the switching card. Directional displacement. The USB connector of claim 1, wherein the housing protrusion has a housing contact portion, and the housing contact portion is electrically connected to a grounding conductor provided on the switching card. The USB connector of claim 1 is provided with a side latch, wherein the side latch is engaged with a ground contact portion of the other connector, and is grounded while being held in a fitted state, the side latch having And a first latch contact portion electrically connected to the grounding guide circuit provided on the switching card, and a second latch contact portion connected to the conductive housing. The USB connector of claim 4, wherein the insulating case includes a case protrusion, and the case protrusion is opposed to the first latch contact portion via the switch card. The switch card is sandwiched between the first latch contact portion and the housing projection.