JP5054462B2 - Balanced transmission connector - Google Patents

Description

  The present invention relates to a balanced transmission connector for transmitting high-speed and high-density information signals.

Conventionally, balanced transmission connectors have been used to connect personal computers and peripheral devices such as hard disks and optical fibers. Such a balanced transmission connector includes a printed circuit board and a plug cover soldered to the printed circuit board. The plug cover covers the plug for balanced transmission and supports the connecting portion between the plug and the cable (see, for example, Patent Document 1).
JP 2006-073367 A

  In the balanced transmission connector as described above, the plug cover is fixed to the printed circuit board only by soldering. Soldering may have reduced strength due to temperature changes depending on the usage conditions. For this reason, ensuring the intensity | strength corresponding to a temperature change has been a subject.

  Therefore, an object of the present invention is to provide a balanced transmission connector in which the strength of a plug cover fixed to a printed board is improved.

The balanced transmission connector according to one aspect of the present invention is a balanced transmission connector including a plug cover that supports a balanced transmission plug and a substrate to which the plug cover is fixed. The plug cover and the balanced transmission connector include: , One end is inserted into a first hole formed in the thickness direction of the substrate, and the other end is inserted into a second hole formed in the plug cover at a position corresponding to the first hole. A plurality of grooves arranged radially in the radial direction of the opening of the second hole are formed on the surface of the plug cover where the second hole is formed .

  Further, the groove may be a groove having a V-shaped cross section formed so as to become shallower as the distance from the opening of the second hole portion increases.

According to another aspect of the present invention, there is provided a balanced transmission connector including: a plug cover that supports a balanced transmission plug; and a balanced transmission connector that includes a substrate to which the plug cover is fixed. One end is inserted into a first hole formed in the thickness direction of the substrate, and the other end is inserted into a second hole formed in the plug cover at a position corresponding to the first hole. The fixing pin is fixed by a columnar fixing pin, and the fixing pin has a circumferential protrusion part of an outer periphery protruding radially in the circumferential direction, and an opening of the second hole portion of the plug cover. A circumferential recess for accommodating the circumferential projection is formed.

According to another aspect of the present invention, there is provided a balanced transmission connector including: a plug cover that supports a balanced transmission plug; and a balanced transmission connector that includes a substrate to which the plug cover is fixed. One end is inserted into a first hole formed in the thickness direction of the substrate, and the other end is inserted into a second hole formed in the plug cover at a position corresponding to the first hole. The fixing pin is fixed by a columnar fixing pin, and the fixing pin has a one-letter or cross-shaped protruding portion in the axial direction of the fixing pin, and is formed in the opening of the second hole of the plug cover. Is formed with a recess for accommodating the protrusion .

  Moreover, you may have a surface rough part in the outer peripheral surface of the said pin for fixation, or the surface in which the said 1st hole part of the said plug cover is formed.

  The plug cover and the balanced transmission connector may be fixed by an adhesive or solder in addition to the fixing pin.

  According to the present invention, it is possible to provide a specific effect that a balanced transmission connector in which the strength of a plug cover fixed to a substrate is improved can be provided.

  Embodiments to which the balanced transmission connector of the present invention is applied will be described below.

  FIG. 1 is a perspective view showing the configuration of the balanced transmission connector of the present embodiment. FIG. 2 is a diagram showing a cross-sectional structure of the balanced transmission connector according to the present embodiment.

  The balanced transmission connector 10 of the present embodiment can be used, for example, as a connector for connecting an optical transceiver that converts an electrical signal and an optical signal to a computer or the like. In this case, the balanced transmission connector 10 of the present embodiment is connected to the end of the optical fiber, for example.

  The balanced transmission connector 10 is obtained by fixing a plug cover 12 on a substrate 11 made of PCB (polychlorinated biphenyl). The plug cover 12 supports a balanced transmission plug (hereinafter referred to as a balanced transmission plug) 13, and the balanced transmission plug 13 is connected to a socket (not shown) of a computer or the like. The substrate 11 is a printed circuit board in which metal wiring is formed on the upper surface of the PCB substrate, on which a photoelectric conversion element and an optical waveguide are mounted.

  Holes 11a and 12a for inserting columnar pins 14 are formed in the substrate 11 and the plug cover 12, respectively. The hole 11 a is formed so as to penetrate the thickness direction of the substrate 11. The diameter is set so that the pin 14 is fitted. The hole 12a is formed on the bottom surface of the plug cover 12, and has the same diameter and predetermined depth as the hole 11a.

  The base plate 11 and the plug cover 12 are fixed by fitting the columnar pins 14 into the holes 11a and 12a.

  The hole 11a may be formed as a hole having a predetermined depth instead of penetrating the substrate 11. Moreover, the hole 12a may be formed so as to penetrate the plug cover 12 in the height direction. In this case, the length of the pin 14 may be set according to the length of the holes 11a and 12a.

  Thus, according to the balanced transmission connector 10 of the present embodiment, the substrate 11 and the plug cover 12 are fixed by the pins 14. Since the pins 14 are fitted to the substrate 11 and the plug cover 12, the substrate 11 and the plug cover 12 can be firmly fixed. In particular, a change in strength with respect to a change in temperature can be suppressed as compared with a case where fixing is performed only by soldering.

  Although the embodiment in which the substrate 11 and the plug cover 12 of the balanced transmission connector 10 of the present embodiment are fixed by the pins 14 has been described above, they may be fixed using an adhesive in addition to the pins 14. Thereby, the adhesion strength between the substrate 11 and the plug cover 12 is further increased.

  Since stress is applied between the board 11 and the plug cover 12 when the plug 13 is inserted and removed, increasing the fixing strength between the board 11 and the plug cover 12 is not possible with an optical transceiver, a computer, or the like using the balanced transmission connector 10. This leads to improved reliability.

  Moreover, since the amount of the adhesive can be reduced by using the pins 14 as compared with the case where the pins 14 are not used, it is possible to suppress the adhesive from protruding outside the joint portion of the substrate 11 and the plug cover 12. Since the case (not shown) that accommodates the balanced transmission connector 10 often has a small dimensional margin, the protrusion of the adhesive can be suppressed, and the fit into the case can be improved.

  In addition, as an adhesive agent, a thing with high heat-resistant temperature (for example, 80 degree | times or more) is desirable.

  Also, solder can be used instead of the adhesive. If the substrate 11 and the plug cover 12 are fixed only by solder, the strength is reduced due to temperature change. However, if the substrate 11 and the plug cover 12 are used together with the pins 14, there is no practical problem.

  FIG. 3 is a diagram showing a cross-section of the main part of the balanced transmission connector of the present embodiment. FIG. 4 is a diagram showing a structure of pins used in the balanced transmission connector according to the present embodiment.

  As shown in FIG. 4A, the pin 14 shown in FIG. 3 has a circumferential protrusion 14a. The pins 14 are fitted into the holes 11a and 12a, and the substrate 11 and the plug cover 12 are fixed so that the protruding portion 14a is sandwiched between the substrate 11 and the plug cover 12. Moreover, as shown in FIG. 3, the adhesive 15 is apply | coated to the circumferential protrusion part 14a. Since there is the circumferential protrusion 14a, the adhesion area by the adhesive 15 increases, thereby increasing the fillet, and the fixing strength of the substrate 11 and the plug cover 12 can be increased.

  In addition, the pin 14 may have a protruding portion 14b that protrudes so as to have a single letter shape as viewed in the axial direction as shown in FIG. 4 (b), and as viewed in the axial direction as shown in FIG. May have a protruding portion 14c protruding so as to have a cross-shaped shape. The pin 14 having the protrusions 14b and 14c also increases the adhesion area by the adhesive 5 as in the case of using the pin 14 having the protrusion 14a shown in FIG. Since it becomes large, the adhesion strength of the board | substrate 11 and the plug cover 12 can be increased.

  In addition, you may form the recessed part of the shape corresponding to the protrusion parts 14b and 14c in the bottom face of the plug cover 12. FIG.

  FIG. 5 is a diagram showing a cross-section of the main part of the balanced transmission connector of the present embodiment. The pin 14 shown in FIG. 5A has a rough surface portion 14e on a part of the outer peripheral surface. The plug cover 12 shown in FIG. 5B has a rough surface portion 12d around the hole 12a on the bottom surface.

  By providing such rough surface portions 14e and 12d, the adhesive force of the substrate 11 and the plug cover 12 by the adhesive can be increased.

  FIG. 6 is a diagram illustrating a main part of the balanced transmission connector according to the present embodiment. Fig.6 (a) is a figure which shows the bottom face of a plug cover. 6B shows an AA ′ cross section in FIG. 6A, and FIG. 6C shows a BB ′ cross section in FIG. 6A.

  As shown in FIG. 6A, a plurality of grooves 12b arranged radially may be provided around the opening of the hole 12a of the plug cover 12. If such a groove 12b is provided and the substrate 11 and the plug cover 12 are fixed with an adhesive, the fixing strength can be further improved. In addition, such a groove | channel 12b may be formed so that a depth (refer FIG.6 (c)) may become shallow, so that it leaves | separates from an opening part. Thereby, the quantity of the adhesive agent in the part close | similar to an opening part can be increased, and the quantity in a distant part can be decreased. While suppressing the amount of the adhesive, by making the fixing strength near the opening where the pin 14 is fitted higher than the part far away, the synergistic effect of the fixing force by the pin 14 and the adhesive is efficiently obtained. be able to.

  FIG. 7 is a diagram showing a main part of the balanced transmission connector according to the present embodiment. Fig.7 (a) is a figure which shows the bottom face of a plug cover. FIG.7 (b) shows the AA 'cross section in Fig.7 (a).

  As shown in FIG. 7A, a chamfered portion 12 c may be formed at the opening of the hole 12 a of the plug cover 12. The chamfered portion 12c is constituted by a surface corresponding to four slopes of a quadrangular pyramid whose apex is located on the central axis of the hole 12a. If the chamfered portion 12c is provided and the substrate 11 and the plug cover 12 are fixed with an adhesive, the fixing strength can be further improved.

  Note that the shape of the chamfered portion 12c is not limited to the shape of the slope of the quadrangular pyramid, and may be other shapes.

  In these modified examples, solder may be used instead of the adhesive.

  Although the balanced transmission connector of the exemplary embodiment of the present invention has been described above, the present invention is not limited to the specifically disclosed embodiment, and departs from the scope of the claims. Various modifications and changes are possible.

It is a perspective view which shows the structure of the connector for balanced transmission of this Embodiment. It is a figure which shows the cross-section of the connector for balanced transmission of this Embodiment. It is a figure which shows the principal part of the connector for balanced transmission of this Embodiment. It is a figure which shows the principal part of the connector for balanced transmission of this Embodiment. It is a figure which shows the principal part of the connector for balanced transmission of this Embodiment. It is a figure which shows the principal part of the connector for balanced transmission of this Embodiment. It is a figure which shows the principal part of the connector for balanced transmission of this Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Balance transmission connector 11 Board | substrate 11a, 12a Hole part 12 Plug cover 12b Groove 12c Chamfering part 12d, 14e Surface rough part 13 Balance transmission plug 14 Pin 14a, 14b, 14c Protrusion part 15 Adhesive

Claims (6)

In a balanced transmission connector including a plug cover for supporting a balanced transmission plug and a substrate to which the plug cover is fixed,
One end of each of the plug cover and the balanced transmission connector is inserted into a first hole formed in the thickness direction of the substrate, and the other end is formed in the plug cover at a position corresponding to the first hole. Fixed by a columnar fixing pin inserted into the second hole,
A connector for balanced transmission, wherein a plurality of grooves arranged radially in the radial direction of the opening of the second hole are formed on a surface of the plug cover where the second hole is formed.   2. The balanced transmission connector according to claim 1, wherein the groove is a groove having a V-shaped cross section formed so as to become shallower as the distance from the opening of the second hole portion increases. In a balanced transmission connector including a plug cover for supporting a balanced transmission plug and a substrate to which the plug cover is fixed,
One end of each of the plug cover and the balanced transmission connector is inserted into a first hole formed in the thickness direction of the substrate, and the other end is formed in the plug cover at a position corresponding to the first hole. Fixed by a columnar fixing pin inserted into the second hole,
The fixing pin has a circumferential projection having a part of the outer circumference projecting radially in a radial direction, and the circumferential projection is accommodated in the opening of the second hole of the plug cover. A connector for balanced transmission in which a circumferential recess is formed. In a balanced transmission connector including a plug cover for supporting a balanced transmission plug and a substrate to which the plug cover is fixed,
One end of each of the plug cover and the balanced transmission connector is inserted into a first hole formed in the thickness direction of the substrate, and the other end is formed in the plug cover at a position corresponding to the first hole. Fixed by a columnar fixing pin inserted into the second hole,
The fixing pin has a single-letter or cross-shaped protrusion when viewed in the axial direction of the fixing pin, and the opening of the second hole of the plug cover accommodates the protrusion. Is a balanced transmission connector. The balanced transmission connector according to any one of claims 1 to 4 , further comprising a rough surface portion on an outer peripheral surface of the fixing pin or a surface of the plug cover where the first hole portion is formed. The plug cover and the balanced transmission connector, in addition to the fixing pins are fixed by an adhesive or solder, balanced transmission connector according to any one of claims 1 to 5.

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