JP5065987B2 - Communication cable connection mechanism - Google Patents

Description

  The present invention relates to a communication cable connection mechanism in a communication apparatus such as a multiplex radio apparatus.

  2. Description of the Related Art Conventionally, in a communication device such as a multiplex wireless device, a communication cable (for example, an SP type coaxial cable) is introduced from an upper end portion of a housing, and a printed circuit board side connector (contact) is disposed substantially parallel to the direction of introduction of the communication cable. It is designed to be connected to the stopper seat.

  For example, as shown in FIG. 7, a signal input / output unit 100 (corresponding to a communication cable connection mechanism) of a multiplex radio apparatus includes printed circuit boards 101a and 101b that are substantially perpendicular to the upper end surface of the casing of the multiplex radio apparatus, and a printed circuit board. SP type coaxial connectors (connector seats) 103a to 103d protruding substantially vertically from one surface of 101a and 101b, and four internal wiring connectors connected to the SP type coaxial connectors 103a to 103d via the printed boards 101a and 101b 102a to 102d, and cable introduction ports 104a and 104b are arranged on the upper end surface of the housing. The SP-type coaxial connectors 103a to 103d are provided in a row of 8 pieces, for a total of 32 rows of 4 rows. The internal wiring connectors 102a to 102d are further connected to a control board (main board) (not shown). The transmission / reception duplexer 105 performs operation / standby switching processing of a transmitter and a receiver (not shown). FIG. 7 shows a case where a communication cable (for example, an SP type coaxial cable) is not connected.

  As shown in FIG. 8, the SP type coaxial cable 106 is introduced from the cable introduction port 104a substantially parallel to the plate surface of the printed circuit board 101a, and is attached to one end of the SP type coaxial cable. ) And the like are inserted into SP-type coaxial connectors 103a and 103b (connector seats) on the printed circuit board side. Here, the plug and connector seat of the SP-type coaxial connector are bent (substantially orthogonal) by the interposition of an L-shaped adapter or the like, and the direction of the SP-type coaxial cable 106 (the direction of the core wire) is also bent.

  Further, the SP type coaxial cable 106 connected to the SP type coaxial connectors 103a and 103b is inverted (bent) below the coupling portion. By this inversion, for example, the force applied to the coupling portion due to vibration or traction of the SP type coaxial cable 106 is buffered, and the connection state of the SP type coaxial cable 106 is stabilized. Accordingly, the SP type coaxial cable 106 has a surplus length for reversal, and the plurality of SP type coaxial cables 106 are bent while contacting with each other in the housing. Alternatively, a plurality of SP type coaxial cables 106 are bundled so as not to come into contact with a device provided in the housing. When a large number of SP-type coaxial cables 106 are attached, the work is performed while avoiding contact with adjacent SP-type coaxial connectors (plug seats) or installed SP-type coaxial cables.

In addition to the signal input / output unit shown in FIGS. 7 and 8, cable connecting means (coaxial socket connector, which can be directly and detachably attached to the tip of the input and output communication cables (for example, SP type coaxial cable). A coaxial plug connector), and the length of the second fixed rack that supports the coaxial cable on the outgoing side is made half the length of the first fixed rack that supports the cable connecting means of the SP-type coaxial cable on the incoming side. In some cases, a space for accommodating a surplus length for switching the cable connection between the entry side and the exit side is obtained (see, for example, Patent Document 1). In this case, the opening on the inlet side and the outlet side of the SP type coaxial cable are provided on the upper end surface of the casing, and the upper end surface of the casing and the first and second fixed racks are substantially perpendicular so that the SP type coaxial cable is provided. Is inverted in the housing.
JP 9-18173 A

  In the conventional communication cable connection mechanism, the direction of communication cable introduction (perpendicular to the upper end surface) and the direction of attachment of the communication cable (connector etc.) to the connector (connector seat) on the printed board Vertical direction), the communication cable side plug or L-shaped adapter that has moved up and down in the housing at the time of introduction is aligned with the plug seat on the printed circuit board side to the left and right direction (horizontal direction). ) Will be operated. Further, depending on the size of the space around the signal input / output unit in the housing, the mounting work is performed with a part of the housing opened so that the printed circuit board is exposed. According to the conventional communication cable connection mechanism, since the introduction direction and the installation direction of the communication cable are different, there is a problem that the installation work is troublesome.

  The present invention has been made to solve the conventional problems, and provides a communication cable connection mechanism capable of easily connecting a communication cable by making the introduction direction and the mounting direction of the communication cable the same. For the purpose.

(1) A communication cable connection mechanism according to the present invention includes a printed circuit board disposed so as to be substantially parallel to a communication cable introduced from the outside, a plug connected to the communication cable, and the printed circuit board. An external connector for connecting the communication cable to the printed circuit board, and a connector seat coupled to the connector in the same direction as the direction in which the communication cable is installed; and the external connector by the external connector in a state in which the communication cable is connected to the printed circuit board, and the connector support means coupling portion of the communication cable and the external connector to support the external connector so that the printed circuit board and substantially parallel, said coupling portion A cable holding means for holding the communication cable connected to the printed circuit board by the external connector; The cable holding means has a curved portion that fits with a part of the peripheral surface of the communication cable, and a peripheral edge of the curved portion is brought into contact with a step portion of a joint portion between the communication cable and the plug This is characterized in that the communication cable is held .

  According to this configuration, the connector support means is such that the connecting portion of the communication cable and the external connector (for example, the plug and plug seat of the SP type coaxial connector as the external connector) is substantially parallel to the printed circuit board. Since the external connector is supported, the introduction direction when the communication cable is introduced into the housing is the same as the insertion direction when the communication cable side plug is inserted into the plug seat on the printed circuit board side, for example ( For example, the vertical direction). Since the introduction direction and the insertion direction of the communication cable are the same, connection work such as alignment between the plug on the communication cable side and the plug seat on the printed circuit board side is facilitated. Further, since relay parts such as an L-shaped adapter are not required, the configuration can be simplified and the working time can be shortened.

In addition, according to this configuration, the cable holding means holds the connected communication cable in the vicinity of the coupling portion between the communication cable and the external connector, so that the direction of the communication cable is kept the same as when it is fitted, It is possible to prevent the communication cable from being disconnected from the external connector. For example, by holding the communication cable at a position in contact with one end and the peripheral surface of the connected communication cable side plug, the communication cable side plug is prevented from being detached from the printed circuit board side plug seat. be able to.

( 2 ) In the communication cable connection mechanism according to the present invention, the upper end surface of the communication device includes an opening for introducing the communication cable from the outside, and the printed circuit board is substantially perpendicular to the upper end surface. There is a feature in being.

  According to this configuration, as described above, the introduction direction from the opening portion of the communication cable is the same as the insertion direction at the time of connection, and the printed circuit board is substantially perpendicular to the upper end surface of the communication device. The communication cable introduced from the unit can be held in a state of being connected to the external connector without being inverted inside the housing of the communication device. Therefore, the extra length of the communication cable can be reduced, and the space for accommodating the extra length can be used effectively. Or the enlargement of a communication apparatus can be suppressed.

  The present invention provides a printed circuit board disposed so as to be substantially parallel to a communication cable introduced from the outside, and the communication cable and the communication cable in a state where the communication cable is connected to the printed circuit board by an external connector. A connector support means for supporting the external connector so that a coupling portion of the external connector is substantially parallel to the printed circuit board, and the communication cable introduction direction and the mounting direction are made the same, thereby providing a communication cable It is possible to provide a communication cable connection mechanism having an effect of facilitating connection.

  Hereinafter, a multiplex radio apparatus including a signal input / output unit as an embodiment of a communication cable connection mechanism according to the present invention will be described with reference to the drawings.

  An appearance of a multiplex radio apparatus as an embodiment of the present invention is shown in FIG. The overall configuration of this multiplex radio apparatus is shown in FIG. 5, and the partial configuration of the signal input / output unit is shown in FIGS. 2, 3, and 4 (front view (a) and side view (b)).

  In FIG. 1, a multiplex radio apparatus 1 constitutes a microwave radio network together with a plurality of external apparatuses (external terminals), for example, and opens and closes an upper panel 12 at the upper part of the rack case and the upper part of the rack case. An upper door 13, an operation panel 15 having a telephone and a display, a lower door 16 for opening and closing the lower part of the rack, a lower panel 17 at the lower part of the rack, and a side surface of the rack And a plate member such as a side plate 14 surrounding the back surface, and the upper end surface is open (having an opening 12a on the upper end surface).

  As shown in FIG. 2, a signal input / output unit 11 for inputting / outputting a bipolar signal is disposed on the upper part of the multiplex radio apparatus 1. SP type coaxial cables 115 (a part of 16 are shown in FIGS. 3 and 4) are introduced. The 32 SP coaxial cables 115 introduced are held by two pairs of drop-off prevention members 111a to 111d in a state of being connected to the printed circuit board side. The signal input / output unit 11 receives a bipolar signal from an external device via the SP-type coaxial cable 115 and distributes the bipolar signal to the inside of the multiplex radio device 1 and transmits the bipolar signal to the external device. .

  As shown in FIGS. 3 and 4, the signal input / output unit 11 includes a pair of flat printed boards 114 a and 114 b, a pair of drop-off prevention members 111 a and 111 b, and an attachment member 112. The other pair of printed circuit boards, the other pair of drop-off preventing members, and the other mounting members that are not shown in the figure have the same configuration, and thus the description thereof is omitted.

Two sets of SP type coaxial connectors (connector seats) 117a _{1 to} 117a ₈ , 117b _{1 to} 117b ₈ and a pair of internal wiring connectors 116a and 116b are attached to each printed circuit board 114a and 114b as eight sets. It has been.

  A pair of printed circuit boards 114 and drop-off prevention members 111a and 111b are attached to the attachment member 112 by fastening members such as bolts, nuts, and screws. The attachment member 112 supports 16 SP type coaxial connectors (plug seats) 117 attached to the pair of printed circuit boards 114. Further, the mounting member 112 is fixed to the housing side by mounting screws 113a and 113b.

Stopper members 111a, 111b may be prevented from falling off of which is connected to a pair of printed circuit board 114 the two sets 16 of SP coaxial cable _{115a 1 ~115a 2, 115b 1 ~115b} 2. In the drop-off prevention members 111a and 111b, the edges of the opposing horizontal portions are cut off based on the outer diameters of the two sets of SP type coaxial cables 115, and a plurality of curved portions are formed to face each other. In a state where the SP type coaxial connector 120 and the SP type coaxial connector 117 are coupled (a state where the SP type coaxial cable 115 is connected), the bending portion is fitted to a part of the circumferential surface (half or less) of the SP type coaxial cable 115. It is supposed to be.

  Note that the drop-off prevention members 111a and 111b are arranged in the horizontal direction within the range of the slide holes 111e, 111f, and 111g (with the printed board 114). It is movable in the direction perpendicular to the plate surface.

SP-type coaxial connectors (plugs) 120a _{1 to} 120a ₂ and 120b _{1 to} 120b ₂ are attached to one end of the 16 SP-type coaxial cables 115a _{1 to} 115a ₂ and 115b _{1 to} 115b ₂ . By inserting any of the 16 SP type coaxial connectors (connectors) 120 into any of the 16 SP type coaxial connectors (connector seats) 117, the two are coupled (the SP type coaxial cable 115 has a signal input). Connected to the printed circuit board 114 of the output unit 11).

  Here, since the outer diameter of the SP-type coaxial connector (connector) 120 is larger than the outer diameter of the SP-type coaxial cable 115, a step is generated at the joint between the two. In a state in which both are joined, the joint portion (annular step portion on the side of the plug) abuts against the peripheral edge (back surface) of the curved portion of the drop-off preventing member 111a, 111b, so that the vertical axis of the SP type coaxial cable 115 is obtained. This will prevent movement in the direction (upward). Similarly, the curved portion described above is fitted to a partial circumferential surface of the SP-type coaxial cable 115, thereby preventing the SP-type coaxial cable 115 from moving in the horizontal direction.

  The 16 SP coaxial connectors (connector seats) 117 are connected to a pair of internal wiring connectors 116 via a pair of printed circuit boards 114. The pair of internal wiring connectors 116 is connected to a main board (not shown). The main board performs signal processing necessary for communication with an external device.

  In the present embodiment, since the SP type coaxial cable 115 is attached to the printed circuit board 114, the connecting portion of the SP type coaxial connector is supported at the upper and lower portions of the attachment member 112 and the drop prevention members 111a and 111b. In addition, the direction of the core wire of the SP-type coaxial cable 115 can be kept the same as the introduction direction and the mounting direction.

  On the other hand, as shown in FIG. 5, the multiplex radio apparatus 1 includes a transmission unit 42, a reception unit 44, a transmission / reception sharing switching unit 46, a control unit 48, a power supply unit 50, a temperature sensor 51, and a liquid crystal display device. (LCD) 60 and a screen controller 62.

  The controller 48 is connected to the administrator computer 32 and is connected to the outside line exchange 28 via the modem 64. The transmission / reception sharing switching unit 46 corresponds to the signal input / output unit 11 described above, and the control unit 48 corresponds to the main board described above.

  The transmission unit 42 includes two transmitters 52a and 52b for normal use and backup use. For example, the data output from the terminal station device (corresponding to an external device) 22 is a transmission / reception common switching unit 46, a parabolic antenna, and the like. The transmission process via the antenna 24 (transmission signal modulation process) is performed.

  The receiving unit 44 includes two receivers 54 a and 54 b for normal use and backup, for example, receives data via the transmission / reception shared switching unit 46 and the antenna 24, and supplies the received data to the terminal device 22. Processing (reception signal demodulation processing) is performed.

  The screen controller 62 controls the liquid crystal display device 60 so as to display an alarm or the like according to the model specification of the multiplex wireless device 1.

  The power supply unit 50 supplies power to the transmission unit 42, the reception unit 44, the transmission / reception sharing switching unit 46, the screen controller 62, the modem 64, and the control unit 48.

  The control unit 48 is composed of, for example, a microcomputer, and controls, for example, the transmission unit 42, the reception unit 44, the transmission / reception sharing switching unit 46, and the power supply unit 50, and other multiplex radio devices and terminal devices in the microwave radio network. A process for transmitting data to the outside or the like, or a communication process with the outside through the modem 64 and the exchange 28 is performed. Further, when the control unit 48 detects that a failure has occurred in the transmitters 52a and 52b and the receivers 54a and 54b, the control unit 48 instructs the transmission / reception common switching unit 46 and the like to enter a standby state. A switching process is performed so as to switch.

  A procedure for attaching the SP-type coaxial cable 115 to the signal input / output unit 11 of the multiplex radio apparatus 1 configured as described above will be described. Here, a case where the signal input / output unit 11 is fixed to the housing by the mounting screw 113 and the drop-off prevention members 111a and 111b are temporarily fixed to the support member 118 by the mounting screw 119 is shown.

  First, an operator attaches an SP-type coaxial connector (plug) 120 to one end of an SP-type coaxial cable 115 to be connected, and inserts the plug into an SP-type coaxial connector (plug seat) 117 on the printed circuit board 114 side. And combine both.

  Next, the operator moves the anti-drop-off members 111a and 111b temporarily fixed as described above along the slide holes 111e, 111f, and 111g, so that the curved portion of the drop-off prevention members 111a and 111b is connected to the SP type coaxial. Part of the peripheral surface of the cable 115 is fitted, and the mounting screw 119 is tightened to fix the drop-off prevention members 111a and 111b. At this time, the SP type coaxial cable 115 is positioned so as to be parallel to the printed circuit board 114.

  When removing the attached SP type coaxial cable 115, the mounting screws 119 are loosened and the drop prevention members 111a, 111b are moved along the slide holes 111e, 111f, 111g, etc., and the drop prevention members 111a, 111b are moved. After the SP-type coaxial cable 115 is separated from the curved portion, the SP-type coaxial connector (plug) 120 to be removed is pulled out from the SP-type coaxial connector (plug seat) 117 and removed. When there is an installed SP type coaxial cable 115 in addition to the removed SP type coaxial cable, the drop prevention members 111a and 111b are moved along the slide holes 111e, 111f, 111g, etc. After the cable 115 is fitted to the curved portions of the drop prevention members 111a and 111b and positioned as described above, the mounting screws 119 are tightened to fix the drop prevention members 111a and 111b.

  According to the multiplex radio apparatus 1 as one embodiment of the present invention, the SP type coaxial connector 117 (connecting seat) attached to the printed circuit board 114 is substantially parallel to the plate surface of the printed circuit board 114. In addition, since the SP-type coaxial connector 117 is supported by the attachment member 112, the operator attaches the SP-type coaxial cable 115 to the signal input / output unit 11 (introduction direction) and the SP-type coaxial cable 115. The direction (insertion direction) in which the SP-type coaxial connector (connector) 120 is inserted into the SP-type coaxial connector 117 (connector seat) is the same direction (vertical direction). Since the introduction direction and insertion direction of the SP-type coaxial cable 115 are the same, connection work such as positioning of the SP-type coaxial connector plug and the plug seat is facilitated. Further, since the core wire of the SP-type coaxial cable 115 is not bent, a relay part such as an L-shaped adapter becomes unnecessary.

  Further, according to the present embodiment, the drop-off prevention members 111a and 111b have curved portions corresponding to the respective SP-type coaxial cables 115, and the SP-type coaxial cable 115 and the SP-type coaxial connector 120 are provided on the back surface of the curved portions. Since the SP-type coaxial cable 115 is held by fitting the curved portion and the SP-type coaxial cable 115 at a position where the seam portion (annular step) contacts, the direction of the SP-type coaxial cable 115 is set at the time of insertion. The movement in the horizontal direction and the vertical direction can be prevented while keeping the same.

  Further, according to the present embodiment, as described above, the introduction direction and the insertion direction of the SP type coaxial cable 115 are the same, and the printed circuit board 114 is substantially perpendicular to the upper end surface of the multiplex communication apparatus 1. Therefore, the SP-type coaxial cable 115 introduced from the opening on the upper end surface is held in a state of being connected to the printed circuit board 114 by the SP-type coaxial connectors 117 and 120 without being inverted inside the housing of the multiplex communication apparatus 1. Can do. Therefore, the extra length of the SP type coaxial cable 115 can be reduced as compared with the configuration in which the SP type coaxial cable 115 is inverted inside the housing.

  Further, by reducing the extra length of the SP-type coaxial cable 115, the signal input / output unit 11 can be made compact and the number of connectable SP-type coaxial cables 115 (corresponding to the number of external devices) can be increased. Can do. Further, by providing the signal input / output unit 11 in the vicinity of the opening on the upper end surface, it is not necessary to introduce the SP type coaxial cable 115 to the central part or the lower part of the casing. It will not span the module mounting area.

  In the conventional signal input / output unit, the opening for introducing the communication cable corresponding to the SP type coaxial cable 115 into the casing is on the upper end surface, and the communication cable is inverted in the casing. There is a problem that it is difficult to reduce the extra length of the communication cable (see, for example, Patent Document 1, FIG. 7, and FIG. 8). On the other hand, the signal input / output unit 11 according to the present embodiment makes the introduction direction and insertion direction of the SP type coaxial cable 115 the same, and prints on the opening (for example, the upper end surface) of the multiplex communication apparatus 1. By arranging the substrate 114 substantially vertically and providing the signal input / output unit 11 in the vicinity of the opening of the housing, the above-mentioned problems can be solved and the space inside the housing can be used effectively.

  Further, in the above-described embodiment, the case where the opening is provided in the upper part (for example, the upper end surface) of the multiplex radio apparatus 1 has been described. However, the present invention is not limited to the lower part (for example, the bottom surface) of the multiplex radio apparatus 1. The same effect can be obtained even if an opening is provided in the case. Furthermore, by introducing a communication cable from the opening on the bottom surface, it becomes possible to deal with underfloor wiring, and the effect of increasing the versatility of cable connection can be obtained. Here, another embodiment according to the present invention is shown in FIG.

  As shown in FIG. 6, the signal input / output unit 11 is disposed near the lower panel 17 at the bottom of the casing of the multiplex radio apparatus 1, and 32 SP type coaxial cables 115 of external devices are introduced. Here, the printed circuit board 114 is arranged substantially parallel to the opening 121 on the bottom surface of the housing. Further, the insertion direction when the SP type coaxial connector 120 (connector) is inserted into the SP type coaxial connector (connector seat) 117 is substantially parallel to the plate surface of the printed circuit board 114. In addition, the SP-type coaxial cable 115 is held by fitting the curved portions of the drop-off prevention members 111a and 111b and a part of the peripheral surface of the SP-type coaxial cable 115, and the SP-type coaxial cable 115 is horizontally and vertically aligned. The movement of the direction is blocked.

  Note that the orientation of the core wire of the SP type coaxial cable 115 changes by bending from the horizontal direction in the vicinity of the drop-off preventing members 111a and 111b, but compared with the configuration in which the SP type coaxial cable 115 is inverted inside the housing, the SP type. The extra length of the coaxial cable 115 can be reduced. Further, since the SP type coaxial cable 115 is not bent at the connecting portion of the SP type coaxial connector 120 (plug) and the SP type coaxial connector (connector seat) 117, the position of the SP type coaxial connector plug and the plug seat. Connection work such as alignment is easy, and there is no need to provide relay parts such as an L-shaped adapter. Furthermore, the wiring extending upward from the internal wiring connector 116 is bent on the rear side of the housing, but using a flexible wiring component does not interfere with other modules or cause a transmission failure.

1 is a perspective view of a multiplex radio apparatus as an embodiment according to the present invention. It is a perspective view near the signal input / output part as one embodiment according to the present invention. It is a perspective view of the signal input / output part as one embodiment concerning the present invention. It is the front view and side view near a signal input / output part as one embodiment concerning the present invention. It is a block diagram which shows the electric constitution of the multiplex radio | wireless apparatus as one Embodiment which concerns on this invention. It is a perspective view of the signal input / output part vicinity as other embodiment which concerns on this invention. It is a perspective view of the vicinity of a conventional signal input / output unit (not equipped with a communication cable). It is a perspective view near the conventional signal input / output part (communication cable attachment).

Explanation of symbols

1 Multiplex radio equipment 11 Signal input / output unit (communication cable connection mechanism)
12 Overhead panel 12a Opening 13 Upper door 14 Side plate 15 Operation panel 16 Lower door 17 Overhead panel 111a, 111b Drop-off prevention member (cable holding means)
111e to 111g Slide hole 112 Mounting member (connector support means)
113a, 113b Mounting screw 114, 114a, 114b Printed circuit board 115, 115a _{1 to} 115a ₈ , 115b _{1 to} 115b ₈ SP type coaxial cable (communication cable)
116a, 116b Internal wiring connector 117, 117a _{1 to} 117a ₈ , 117b _{1 to} 117b ₈ SP type coaxial connector (connector seat, external connector)
118, 118a-118c Support member (connector support means, cable holding means)
119,119a~119c mounting screws _{120,120a 1 ~120a 8, 120b 1 ~120b} 8 SP -type coaxial connector (plug connector, connectors for external)

Claims (2)

A printed circuit board arranged to be substantially parallel to a communication cable introduced from the outside;
A plug connected to the communication cable; and a plug seat attached to the printed circuit board and coupled to the plug in the same direction as the communication cable is introduced to connect the communication cable to the printed circuit board. An external connector for
Connector support for supporting the external connector so that the connecting portion of the communication cable and the external connector is substantially parallel to the printed circuit board in a state where the communication cable is connected to the printed circuit board by the external connector. Means,
A cable holding means for holding the communication cable connected to the printed circuit board by the external connector in the vicinity of the coupling portion;
The cable holding means has a curved portion that fits with a partial peripheral surface of the communication cable, and a peripheral portion of the curved portion is brought into contact with a step portion of a joint portion between the communication cable and the plug. A communication cable connection mechanism that holds the communication cable. An opening for introducing the communication cable from the outside is provided on an upper end surface of a housing accommodating the communication cable mounting mechanism, and the printed circuit board is substantially perpendicular to the upper end surface. Item 12. A communication cable mounting mechanism according to Item 1.

Images