WO2004052065A1

WO2004052065A1 - Electronic device

Info

Publication number: WO2004052065A1
Application number: PCT/JP2002/012532
Authority: WO
Inventors: Osamu Horikoshi; Koji Sasaki; Kenji Ohyachi; Masahiko Saitou; Shirou Tani
Original assignee: Fujitsu Limited
Priority date: 2002-11-29
Filing date: 2002-11-29
Publication date: 2004-06-17
Also published as: JP4154389B2; JPWO2004052065A1

Abstract

An electronic device comprising an electronic circuit connected to a transmission wire and containing a transmission line fitting member with the transmission wire inside. The transmission wire fitting member is rotatably provided on the electronic device.

Description

Description Electronic device Technical field

The present invention relates to an electronic device such as a communication device, and more particularly to an electronic device in which a transmission Rooster B is housed. Background art

2. Description of the Related Art In recent years, in electronic devices such as communication devices, the electronic devices themselves have advanced functions, and electronic circuit units are mounted at high density on the shelf of the electronic device. For this reason, the number of cables connected to the electronic circuit cutout has also increased dramatically.

FIG. 1 is a perspective view of a conventional communication device 10. FIG. 2 is a cross-sectional view taken along line AA of the conventional communication device 10 shown in FIG.

Referring to FIG. 1, the communication device 10 includes a shelf 11 and a number of electronic circuit cuts 13 housed in an electronic circuit cutout storage section 12 inside the shelf 11. You. Cables 14 are connected to the front surfaces of some of the electronic circuit units 13 (the YZ plane in the XI direction in FIG. 1). In addition, a connector is provided at the rear of the electronic circuit unit 13, and the connector is fitted with a connector inside the shelf 11, so that a plug-in connection is made and an electric signal is connected.

The tray 15 is located on the lower side of the electronic circuit unit storage 1 2 (Z 2 direction in FIG. 1) and on the front side of the shelf 11 (Y—Z side in X 1 direction in FIG. 1). Are provided so as to be depressed on the X2 side in FIG. Referring to FIGS. 1 and 2, the tray 15 has a hollow rectangular shape and a cross-sectional shape provided with an opening in the XI direction when viewed in the Y1-Y2 direction in FIG. A plurality of cables 14 connected to the upper and lower portions of each electronic circuit unit 13 are collectively introduced and held in the tray 15.

In the communication device 10 having a strong and strong structure, since the tray 15 is accommodated inside the communication device 10, it is not possible to save space in the arrangement of the communication device 10. Although it is possible, since the tray 15 is formed so as to be depressed toward the X2 side in FIG. 1, it is difficult to take out the cape knife 14 housed in the tray 15.

In view of this, in order to improve the operability of the operation of removing the cable 14, the tray 15 is moved in the X1 direction in FIG. 1 in order to attach and detach the cable 14 to and from the electronic circuit unit 13. A structure that can be pulled out and operated linearly is conceivable.

However, as shown by a dotted line in FIG. 2, when the tray 15 is pulled out in the XI direction, tension is applied to the cable 14 with the pulling out. Therefore, it is not desirable to adopt such a structure when there is a limit to the tension or bending of the cable, such as an optical cable.

Further, in any of the above-described structures, the plurality of cables 14 connected to the upper and lower portions of the electronic circuit unit 13 are collectively introduced and held in the tray 15. Therefore, when operating only a specific cable, it comes into contact with other cables stored in the tray. This is not desirable, for example, when the cable 14 is the above-mentioned optical cable or the like.

The published utility model publication · Japanese Utility Model Application Laid-Open No. 4-21087 has a cable introduction duct that accommodates the cable and has a lid that opens and closes, and the cable introduction duct has a side edge through which the circuit board comes off. Disclosed is a technology that can be installed as a stop and that can open and close the lid to prevent the circuit board from being pulled out and to introduce and connect external cables.However, multiple cables are collectively housed in the introduction duct. I have. Therefore, even with this technique, when operating only a specific cable, the cable may come into contact with another cable stored in the tray, and the above-mentioned problems cannot be solved. Disclosure of the invention

In view of the above-described problems, an object of the present invention is to provide a space for accommodating transmission wiring in an electronic device to realize space saving in the layout of the electronic device, It is an object of the present invention to provide an electronic device capable of improving operability of an operation of taking out a wiring. More specifically, an object of the present invention is to provide an electronic device which is equipped with an electronic circuit unit to which a transmission rod is connected and which houses therein a transmission wiring mounting member to which the transmission rod is mounted, The wiring attachment member is achieved by an electronic device characterized by being provided rotatably with respect to the electronic device.

The electronic device includes a plurality of the electronic circuit units mounted thereon, and includes a plurality of the transmission cock attachment members in a superimposed manner. One transmission wiring attachment member includes a transmission cock connected to one electronic circuit unit. Attached and connected to other electronic circuit units Transmission rod B / 镍 may be attached to other transmission wiring mounting members.

Further, the transmission wiring mounting member may be provided in the electronic device at a predetermined mounting angle with respect to a horizontal plane.

Furthermore, the position of the center of rotation of the transmission wiring attachment member may be provided on a side where the transmission wiring attachment member is rotated and pulled out from the transmission wiring attachment member in the transmission wiring attachment member. BRIEF DESCRIPTION OF THE FIGURES

Other objects, features and aspects of the present invention will become more apparent from the following detailed description when read in conjunction with the accompanying drawings.

FIG. 1 is a perspective view of a conventional communication device 10.

FIG. 2 is a cross-sectional view of the conventional communication device 10 shown in FIG. 1 taken along line AA. FIG. 3 is a perspective view of the communication device 50 according to the present invention.

FIG. 4 is a perspective view of the communication device 50 shown in FIG. 3, showing the tray plate portion 57_1 rotated from the inside of the tray plate storage portion 55.

FIG. 5 is a side sectional view of the communication device 50 shown in FIG. 3 as viewed in the Y1-Y2 direction in FIG.

FIG. 6 is a side view of the communication device 50 shown in FIG. 3 as viewed in the direction of XI—X2 in FIG.

FIG. 7 is an enlarged view of a portion surrounded by an ellipse in FIG.

FIG. 8 is a diagram showing the tray plate portion 57-1 shown in FIG.

FIG. 9 is a view showing the tray plate support bracket 58 shown in FIG. FIG. 10 is a diagram showing a state where the tray plate portion 57-1 is rotated around the rotation shaft portion 72.

FIG. 11 is a view showing a state where the tray plate portions 57-1 to 57-4 are pivotally operated and pulled out from the tray plate storage portion 55.

FIG. 12 is a diagram for explaining relaxation of the effect of bending stress on the cable 54 in the embodiment of the present invention.

Fig. 13 shows the mounting angles of the tray plates 57-1 through 57-4 with respect to the horizontal plane (X-Y plane in Fig. 3) inside the tray plate storage unit 55. 11 is a schematic diagram of a communication device 50 for explaining a rotation angle Θb of the first to 57-4 with respect to the inside of the tray plate storage portion 55. FIG.

FIG. 14 is a schematic diagram of the communication device 50 of the present invention showing connection positions of cables to be simulated by the inventor.

Fig. 15 shows the tray plate 57-7-5 with the cable 54 connected to the point F on the upper part of the electronic circuit unit 53-3, and the rotation angle b in the direction of the mounting angle Θa. FIG. 10 is a diagram showing a result of calculating a surplus length of the cable 54 when moved by simulation.

Fig. 16 shows the tray plate 57-7-5 with the cable 54 connected to the point G at the bottom of the electronic circuit unit 53-3. FIG. 14 is a diagram showing a result of calculating a surplus length of the cape-notch 54 when moved by simulation.

Fig. 17 shows the tray plate 57-7-6 with the cable 54 connected to the point H on the upper part of the electronic circuit unit 53-3-6, and the rotation angle Θ b times in the direction of the mounting angle Θa. FIG. 14 is a diagram showing a result of calculating a surplus length of the cape-notch 54 when moved by simulation.

Fig. 18 shows the tray plate 57-7-6 to which the cable 54 connected to the lower point I of the electronic circuit unit 53-3-6 is attached. FIG. 10 is a diagram showing a result of calculating a surplus length of the cable 54 when moved by simulation. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 3 is a perspective view of the communication device 50 according to the present invention. Referring to FIG. 3, the communication device 50 includes a shelf 51 and a number of electronic circuit units (circuit boards and the like) 53 stored in an electronic circuit unit storage section 52 inside the shelf 51. Is done. Out of the communication device 50, the four electronic circuit units 53-1 to 53-4 of the electronic circuit unit 53 are located above and below the front surface (Y-Z plane in the X1 direction in FIG. 3). Cable for signal transmission from 5 4 force Connected as transmission wiring. In the present embodiment, the force of setting the number of electronic circuit units 53 to which the cables 54 are connected to four is not limited to this.

In addition, a connector is provided at the rear of the electronic circuit unit 53, and the connector is fitted with a connector inside the shelf 51, so that a plug-in connection is made and an electric signal is connected.

At the bottom of the shelf 51, a fan mounting part 56 is provided. Inside the fan mounting section 56, a fan 60 (see FIG. 5) for forcibly cooling the electronic circuit unit 53 stored in the electronic circuit unit storage section 52 is mounted.

A tray board storage section 55 is provided between the electronic circuit unit storage section 52 of the shelf 51 and the fan mounting section 56 so as to be depressed in the X2 direction. When viewed in the Y1-Y2 direction, the tray plate storage portion 55 has a hollow rectangular cross section and an opening in the XI direction.

Inside the tray plate storage portion 55, a plate-like tray plate portion 5 7 1 1 for introducing and holding the cables 54 connected to the upper and lower portions of the electronic circuit units 53-1 to 53-4. 5-7-4 force As a transmission wiring attachment member, it is rotatably attached to the tray plate support bracket 58. The tray plate support bracket 58 functions as an interposition member interposed between the tray plate portion 57-1 to 57-4 and the tray plate storage portion 55. The mounting structure of the tray plate portions 57-1 to 57-4 to the tray plate storage portion 55 will be described later.

FIG. 4 is a perspective view of the communication device 50 shown in FIG. 3, showing a state in which the tray plate portion 57-1 is rotated from the inside of the tray plate storage portion 55. Referring to FIGS. 3 and 4, in this embodiment, four tray plate portions 57-1 to 57-4 are mounted inside the tray plate storage portion 55. Capes connected to the upper and lower portions of the electronic circuit unit 53_1 at the rightmost (most Y1 side in FIGS. 3 and 4) of the electronic circuit unit 53 to which the cable 54 is connected. The rail 54 is attached to the tray plate 57-1, the longest in length. Similarly, of the electronic circuit unit 53 to which the cable 54 is connected, the uppermost part of the electronic circuit unit 53-4 on the leftmost side (the Y2 side in FIGS. 3 and 4). The cable 54 connected to the lower part is attached to the tray plate 57-7-4 having the shortest overall length.

The cable 54 connected to the upper and lower portions of the electronic circuit unit 53-2 is attached to the tray plate 57-2 having the next longer length than the tray plate 57-1. The cable 54 connected to the upper and lower portions of the electronic circuit unit 53-3 is attached to the tray plate portion 57-3 having the shortest overall length after the tray plate portion 57-4.

Next, a structure for attaching the tray plate portions 57-1 to 57-4 to the tray plate storage portion 55 will be described.

FIG. 5 is a side sectional view of the communication device 50 shown in FIG. 3 as viewed in the Y1-Y2 direction in FIG. In FIG. 5, illustration of the attachment of the cable 54 to the tray plates 57-1 to 57-4 is omitted for convenience of explanation.

Referring to FIG. 5, a fan 60 is mounted inside a fan mounting portion 56 provided at the bottom of the shelf 51. An air duct 61 having a funnel shape is provided above the fan mounting portion 56. The air from the fan 60 is introduced into the electronic circuit unit 53 through the air duct 61, which is a fluid passage, and the electronic circuit unit 53 is forcibly air-cooled.

The tray plate storage portion 55 is provided in a space formed inside the communication device and outside the air duct 61. Inside the tray plate storage portion 55, plate-like tray plate portions 57-1 to 57-4 are provided at predetermined angles (horizontal planes XY in FIG. 3) with respect to a horizontal plane (the XY plane in FIG. 3). 0 a) Tilted in the vertical direction (Z1-Z2 direction in Fig. 3), from below, tray plate 57-1, tray plate 57-1, tray plate 5-7- 3. The tray plates 57-4 are installed in a superimposed order. Accordingly, the tray plate portions 57-1 to 57-4 are housed in the space inside the communication device and formed outside the air duct 61, and the space inside the communication device 50 is effectively used. be able to.

FIG. 6 is a side view of the communication device 50 shown in FIG. 3 as viewed in the XI-X2 direction in FIG. In FIG. 6, illustration of the attachment of the cable 54 to the tray plates 57-1 to 57-4 is omitted for convenience of explanation. FIG. 7 is an enlarged view of a portion surrounded by an ellipse in FIG. 6 (a portion where the tray plate portions 57-1 to 57-4 are mounted inside the tray plate storage portion 55).

FIG. 8 is a diagram showing the tray plate portion 57-1 shown in FIG. 3, and FIG. 8 (a) is a diagram viewed in the Z1-Z2 direction in FIG. 3, and FIG. FIG. 8 is a diagram viewed in the XI-X2 direction in FIG. 3, and FIG. 8_ (c) is a diagram viewed in the Z2-Z1 direction in FIG. FIG. 9 is a diagram showing the tray plate supporting bracket 58 shown in FIG. 3, and FIG. 9A is a diagram viewed in the Z1-Z2 direction in FIG. 3, and FIG. FIG. 3 is a diagram viewed in the Z2-Z1 direction in FIG. Although FIG. 8 shows the tray plate portion 57-1, the tray plate portions 57-2 to 57-4 have the same structure as the tray plate portion 57-1, and therefore, the tray plate portion 57-1 is used. — The description of 1 will be replaced with the description of tray plate 57_2 through 57-4.

Referring to FIG. 5 and FIG. 8, the tray plate portion 57-1 is a member formed by bending a sheet metal so as to have a U-shaped cross section. It has a lower surface portion 80.

The upper surface 70 of the tray plate 57-1 has a substantially rectangular shape as a whole. Inside the upper surface 70, a plurality of notches 70-1 having a substantially rectangular shape are provided. Between the notches 70-1, a holding portion 70-2 for holding the cable 74 (see FIG. 4) together with the lower surface 80 is formed and laid. The cable 74 is attached to the tray plate portion 57-1 by being sandwiched between the holding portion 70-2 and the lower surface portion 80.

Near the left end (Y2 side in FIGS. 3 and 4) of the upper surface 70, and closer to the front than the center line shown by the dotted line in FIG. 8 (a) (rotate the tray plate 57-1). 3 and 4, that is, on the XI side in FIG. 3 and FIG. 0 is provided.

The lower surface portion 80 extending and formed via the side surface portion 75 has a substantially rectangular shape as a whole. Near the end on the left side of the lower surface 80 (Y2 side in FIGS. 3 and 4) and near the rotating shaft 72, a projection 82 is provided on the lower side (Z in FIGS. 3 and 4). (In two directions).

The right side (the Y1 side in FIGS. 3 and 4) of the lower surface 80 is located on the front side (the side where the tray plate 577-1 is rotated and pulled out), that is, the XI side in FIGS. 3 and 4. The protruding surface 82 is formed to extend. The protruding surface 82 is a portion that can be gripped when the tray plate portion 57-1 is rotated from inside the tray plate storage portion 55.

Referring to FIG. 5 and FIG. 9, the tray plate support bracket 58 is a member formed by bending a sheet metal at a predetermined angle described later (an angle 0 a described later). The tray plate support bracket 58 includes a tray plate mounting section 90 and a storage section mounting section 95. The tray plate mounting section 90 has a through-hole forming section 91 and a groove forming section 92. The groove forming portion 92 has a curved cross section and penetrates the tray plate attaching portion 90.

When the lower surface 80 of the tray plate portion 57-1 is placed on the tray plate mounting portion 90, the rotating shaft portion 72 of the tray plate portion 57-1 forms a through hole for the tray plate support bracket 58. It is rotatably engaged with the part 9 1. Further, the protrusion 82 of the tray plate portion 57-1 is slidably engaged with the groove forming portion 92 of the tray plate support bracket 58. Therefore, when the lower surface portion 80 of the tray plate portion 57-1 is rotated with respect to the tray plate supporting bracket 58, the tray plate portion 57-1 is rotated around the rotating shaft portion 72, The lower surface 80 of the part 57-1 slides on the tray plate mounting part 90.

The tray plate portion 57-1 rotates from a state where the tray plate portion 57-1 is stored inside the tray plate storage portion 55 by a predetermined angle (an angle Θb described later), and the tray plate portion 57-1 is rotated. 7-1 projection 8 2 force When contacting the end of the groove forming portion 92 of the S tray plate support bracket 58, the rotational sliding is restricted.

FIG. 10 is a diagram showing a state in which the tray plate portion 57-1 is rotated around the rotation shaft portion 72. In the state shown in FIG. 10— (a), the tray plate portion 57-1 is stored inside the tray plate storage portion 55. At this time, the projection 82 of the tray plate portion 57-1 is in contact with the left end of the groove forming portion 92 of the tray plate support bracket 58.

When the tray plate 57-1 is rotated about the rotary shaft 72 from the state shown in FIG. 10 (a), the state shown in FIG. 10 (b) is obtained. At this time, the protrusion 82 of the tray plate 57-1 slides on the groove forming portion 92 of the tray plate support bracket 58.

From the state shown in Fig. 10- (b), the tray plate 57-1 is further rotated around the rotating shaft 72, and the tray plate 57-7 is stored inside the S tray plate storage 55. When it is turned to a predetermined angle (the angle 0 b described later) from the state shown in FIG. 10, the projection 82 of the tray plate 57-1 is moved to the tray plate support bracket 58 as shown in FIG. Contact the right end of the groove forming portion 92.

By the way, referring to FIG. 9 again, two mounting hole forming portions 96 are formed through the storage portion mounting portion 95. A rivet 97 is inserted into the mounting hole forming portion 96, and the tray plate supporting bracket 58 on which the tray plate portion 57-1 is placed is fixed to the tray plate storage portion 55.

As described above, since the tray plate supporting bracket 58 is formed by bending a sheet metal at a predetermined angle (an angle 0 a described later), the tray plate portion 57-1 placed on the tray plate supporting bracket 58 is formed. Can be rotated with respect to a horizontal plane (XY plane in FIG. 3) at a predetermined angle (an angle 0a described later).

FIG. 11 is a diagram showing a state in which the tray plate portions 57-1 to 57-4 having the above-described structure are rotated and pulled out from the tray plate storage portion 55. In the example shown in FIG. 11, the tray plates 57-1 to 57-4 are inclined at a substantially equal predetermined angle (an angle 0a described later) with respect to a horizontal plane (X_Y plane in FIG. 3). .

FIG. 11A shows a state in which all of the tray plate portions 57-1 to 57-4 are stored in the tray plate storage portion 55. FIG. 11B shows a state in which the tray plate portion 57-4 is rotated by 20 degrees from the tray plate storage portion 55. FIG. 11C shows a state in which the tray plate portion 57-4 is rotated by 30 degrees from the tray plate storage portion 55. FIG. 11D shows a state in which the tray plate portion 57-4 is rotated by 40 degrees from the tray plate storage portion 55. Fig. 11 (e) Shows a state where the tray plate unit 57-2 is rotated by 40 degrees from the tray plate storage unit 55. FIG. 11F shows a state in which the tray plates 57-1 to 57-4 have been rotated 40 degrees from the tray plate storage unit 55. By the way, as described above with reference to FIG. 8, the rotating shaft portion 72 of the tray plate portion 57-1 is located on the left end (the Y2 side in FIGS. 3 and 4) of the upper surface portion 70. In the vicinity of the part, and the V in Fig. 8 (a), the center line indicated by the dotted line (the position at which the cape tray 54 is attached to the tray plate part 57-1) (the tray plate part 57-1 is rotated). 3 and 4, that is, on the XI side in FIG. 3 and FIG. Therefore, the bending stress applied to the cable 54 mounted on the tray plate portion 571-1 can be reduced by rotating the tray plate portion 57-1. Regarding the relaxation of the bending stress, the rotating shaft 72 is located farther than the center line (the mounting position of the cable 54 in the tray plate 57-1) shown by the dotted line in FIG. 8 (a) (the tray plate 57-1). This is described in comparison with the case where it is provided on the X2 side in FIG. 3 and FIG.

FIG. 12 is a diagram for explaining the relaxation of the effect of the bending stress on the cable 54 described above.

More specifically, FIG. 12_ (a) shows, as a virtual example, the case where the rotating shaft 72 has the center line indicated by the dotted line in FIG. 8 (a) (the attachment of the cable 54 in the tray plate 57_1) (In the position opposite to the side where the tray plate portion 57-1 is rotated and pulled out), that is, in the case where the tray plate is provided on the X2 side in FIG. 3 and FIG. FIG. 7 is a diagram showing the relationship between the tray plate portion 57-1 and the cape notch 54 when the portion 57-1 is stored inside the tray plate storage portion 55.

Fig. 12- (b) shows the tray plate 57-1 rotated from the state shown in Fig. 12- (a) in the direction of the arrow around the rotating shaft 72 as shown by the dotted line. FIG. 6 is a diagram showing a relationship between a tray plate portion 57-1 and a cable 54;

As shown in FIGS. 12 (a) and 12 (b), when the tray plate 57-1 is rotated by an arbitrary angle, the point B before the rotation moves to the point C. As shown in Fig. 12- (b), the distance between A and C after rotation is shorter than the distance between A and B before rotation. Here, the length between A and C of cable 54 is the length between A and B of cable 54 Therefore, the bending radius of the cable 54 between A and C (AB) becomes short, and the cape claws 54 are substantially bent near the rotary shaft 72, so that the bend of the caples becomes sharp.

FIG. 12 (c) shows that, as in the present invention, the rotating shaft 72 is closer to the center line indicated by the dotted line in FIG. 8 (a) (the mounting position of the cable 54 in the tray plate 57-1). Side (the side where the tray plate portion 57-1 is rotated and pulled out), that is, in the case where the tray plate portion 57-1 is provided on the XI side in FIG. 3 and FIG. FIG. 6 is a diagram showing a relationship between the tray plate portion 57-1 and the cape notch 54 when the tray is stored in the tray. Fig. 12- (d) shows the tray with the tray plate 57-1 rotated from the state shown in Fig. 12- (c) in the direction of the arrow about the rotation shaft 72 as shown by the dotted line. FIG. 6 is a diagram showing a relationship between a plate portion 57-1 and a cable 54.

As shown in Figs. 12- (c) and 12- (d), when the tray plate 57-1 is rotated by an arbitrary angle, the point B before the rotation moves to the point D. As shown in Fig. 12- (d), the distance between A and D after rotation is longer than the distance between A and B before rotation. Therefore, since the length between A and D of the cable 54 is equal to the length between A and B of the cable 54, the bending radius of the cable 54 between A and D (AB) is shown in Fig. 12- (b). It becomes longer and gently bent as compared to the state shown.

As described above, in the present invention, the rotation shaft 72 of the tray plate 57-1 is located near the left end (the Y2 side in FIGS. 3 and 4) of the upper surface 70, and FIG. a) (the position where the cable 54 is attached to the center line tray plate portion 57-1 indicated by the dotted line) (toward the side where the tray plate portion 57-1 is rotated and pulled out), that is, as shown in FIG. In Fig. 4, it is provided on the XI side. Therefore, according to the structure of the present embodiment, the bending stress applied by rotating the tray plate 57_1 to the cable 54 attached to the tray plate 57-1 can be reduced.

Next, the mounting angle 0 a of the tray plate 57-1 to 57-4 set so that tension is not applied to the cable with respect to the horizontal plane (X-Y plane in Fig. 3) inside the tray plate storage unit 55 The rotation angle 0b of the tray plate portions 57-1 to 57-4 with respect to the inside of the tray plate storage portion 55 will be described. Fig. 13 shows the mounting angle 0a and the tray plate 5 7 _ with respect to the horizontal plane (the X-Y plane in Fig. 3) inside the tray plate storage unit 55 of the tray plate 57-1 to 57-4. FIG. 5 is a schematic diagram of a communication device 50 for explaining a rotation angle Θb of 1 to 57-4 with respect to the inside of a tray plate storage portion 55; In FIG. 13, the communication device 50 is schematically illustrated for convenience of explanation. FIG. 13— (a) is a schematic diagram when the communication device 50 shown in FIG. 3 is viewed in the XI—X2 direction. FIG. 13— (b) is a schematic diagram of the communication device 50 shown in FIG. FIG. 13 is a schematic diagram when viewed in the Y2-Y1 direction, and FIG. 13 (c) is a schematic diagram when the communication device 50 shown in FIG. 3 is viewed in the Z1-Z2 direction.

Referring to FIG. 13, the cable 54 is connected to a point B of an arbitrary electronic circuit unit 53 and is attached to an arbitrary tray plate 57. In FIG. 13— (a), point A indicates the position of the end 100 (see FIG. 4) of the tray plate portion 57 to which the cable 54 is attached. Point C indicates the position of the rotating shaft 72 shown in FIG. 10, that is, the position of the center of rotation of the tray plate 57. L indicates the length in the Y direction of the cable 54 attached to the tray plate portion 57. N is the Z of the cable 54 connected to the point B before the tray plate 57 is rotated, that is, when the tray plate 57 is stored in the tray plate storage 55. The length in the direction, that is, the distance in the Z direction between the point A and the point B before the rotation of the tray plate portion 57 is shown.

Rotate the tray plate 57 to which the cable 54 is fixed with the length L in the Y direction in the direction of the mounting angle 0a of the tray plate 57 with the center point C as the center point. Then, the position of the end 100 (see FIG. 4) of the tray plate portion 57 moved as a result, that is, the coordinates of the point A is obtained. In addition, before the tray plate portion 57 is rotated, that is, the point A in the state where the tray plate portion 57 is stored in the S tray plate storage portion 55 (the end portion 100 0 of the tray plate portion 57 ( Is the origin of the coordinates.

If the distance between the points A and B after the rotation of the tray plate portion 57 is shorter than the distance N between the points A and B before the rotation of the tray plate portion 57, the cable 5 4 will loosen, and no unnecessary tension will act on Cape Nore 5 4.

On the other hand, if the distance between A and B after the rotation of the tray plate portion 57 is longer than the distance N between A and B before the rotation of the tray plate portion 57, the cable 54 becomes This means that the cable 54 is under tension. The distance between A and B after the rotation of the tray plate portion 57 (hereinafter, this distance is referred to as “M”) is specifically calculated by the following equation. That is,

M = f {XXX + YXY + (N-Z) X (N-Z)}

Here, X is the distance in the X direction of A after the rotation of the tray plate portion 57, and is X2LXsin0bXcos0a. Y is the distance of A in the Y direction after the rotation of the tray plate portion 57, and Y = L−LX cos 0 b. Z is the distance in the Z direction of A after the tray plate portion 57 is rotated, and Z = LXs i ηΘbXsinΘa.

For example, when L = 216 [mm], N = 1 10 [mm], Θ a = 40 [degrees], Θ b = 40 [degrees], X = 94. 9071 7, Y = 39. 0631 6 , Z = 79.63657. Therefore, it is calculated as M = 107.0291 [mm]. Therefore, it is understood that N> M, and the cable 54 has an extra length and becomes loose.

As described above, by setting the mounting angle 0a and the rotation angle Θb so that the relationship of N> M is established, unnecessary tension is prevented from acting on the cable 54.

The inventor of the present invention simulated the above-described measurement of the extra length of the cable 54, and obtained the following results. FIG. 14 is a schematic diagram of the communication device 50 of the present invention showing connection positions of cables to be simulated by the inventor.

In the communication device 50 shown in FIG. 14, eight electronic circuit units 53 are mounted. In Fig. 14, the cables 54 are connected to the upper F point and the lower G point of the leftmost electronic circuit unit 53-5, respectively, and the tray board 57 stored in the tray board storage 55 has the Y direction. The Cape Nore 54 is attached to the tray plate 57-5 whose length is short.

In addition, cables 54 are connected to the upper H point and the lower I point of the electronic circuit unit 53-6, which is the eighth from the left in Fig. 14, and the tray board stored in the tray board storage 55 The capele 54 is attached to the tray plate 57-6 of the part 57, which is longer in the Y direction. Above the tray plate 57-6, a tray plate 57-5 is provided in an overlapping manner.

Table 1 and Figure 15 below are connected to point F at the top of electronic circuit unit 53-5. Shows the result of calculation of the extra length of the cable 54 when the tray plate part 57-7 with the attached cable 54 is rotated by the rotation angle 0b in the direction of the mounting angle Θa by simulation. . Here, L = 34 [mm] and N = 330 [mm] are calculated. table 1

[mm] As shown in Table 1 and Figure 15, the tray plate 57-7-5 for mounting the cable 54 connected to the point F on the upper part of the electronic cutout 53-3-5 It can be seen that when the mounting angle 0a is 0 [degree], even if the rotation angle 0b is 10 [degree], the cable is stretched and unnecessary tension is applied. On the other hand, if the mounting angle Θa is more than 15 [degrees], even if the rotation angle 0b is more than 10 [degrees], the cable will be slack and extra length will be generated.

Table 2 below and Fig. 16 show that the tray plate 5 7-5 with the cable 54 connected to the lower point G of the electronic circuit unit 5 3-5 is attached in the direction of the mounting angle Θ a. The result of calculating the extra length of the cable 54 when rotated by the rotation angle 0 b by simulation is shown. Here, the calculation is performed as L = 34 [mm] and N = 110 [mm]. Table 2

Mounting Rotation angle Θ b [degree]

Angle 0 10 20 30 40 50 Θ a

[Every time]

0 0 -0.16

15 0 1.38 2.4 3.03 3.25 3.03

30 0 2.83 5.31 7.34 8.82 9.7

45 0 4.09 7.87 11.18 13.87 15.8

60 0 5.07 9.88 14.24 17.93 20.76

Emm ”As shown in Table 2 and Figure 16, the tray plate part 5 7-5 for mounting the cable 54 connected to the G point at the bottom of the circuit cutout 53-5 When the mounting angle 0a is 0 [degree], even if the rotation angle 0b is 10 [degree], the cable is stretched and unnecessary tension is applied. On the other hand, if the mounting angle 0'a is equal to or greater than 15 [degrees], even if the rotation angle 0b is equal to or greater than 10 [degrees], the cable is slackened and a surplus length occurs.

Table 3 below and Fig. 17 show that the tray plate 57-7 with the cable 54 connected to the point H on the top of the electronic cutout 53-3-6 is attached with the mounting angle Θa The results obtained by calculating the extra length of the cable 54 in the direction when the cable 54 is rotated by the rotation angle 0 b are shown in FIG.

Here, the calculation is performed as L = 216 [mm] and N = 380 [mm]. Electronic circuitry Yunitto _{5 3} - and the upper point F of _5, the top of the electronic circuit Yunitto 5 3 6 The point H, the force Torei plate 5 7 provided at the same height in the height Since the difference is 50 [mm], N at point F is 330 [mm] and N at point H is 380 [mm], which is a difference of 50 [mm] between them. Table 3

Mounting Rotation angle 0 b [degree]

Angle

Θ a

[Degree] 0 10 20 30 40 50

0 0 -1.86

15 0 7.93 11.9 11.68 7.28 -1.03

30 0 17.28 30.78 39.62 43.15 41.1 45 0 25.51 47.85 65.58 77.32 81.99

60 0 31.96 61.56 87.05 106.42 117.65

[mm] As shown in Table 3 and Figure 17, the tray plate 57-7-6 for mounting the cable 54 connected to the point H at the top of the electronic circuit cut 53-3-6 When the mounting angle Θ a is 0 [degree] and the rotation angle 0 b is 10 [degree], the mounting angle 0 a is 15 [degree] and the rotation angle 0 b is 50 [degree]. In the case of], it is understood that the cable is stretched and unnecessary tension is applied.

Table 4 and Fig. 18 below show the mounting angle of the tray plate 57-7 with the cable 54 connected to the point I at the bottom of the electronic cutout 53--6. FIG. 9 shows the result of calculating the extra length of the cable 54 by a simulation when the cable is rotated by a rotation angle of 0 b.

Here, the calculation is performed as L = 216 [mm] and N = 160 [mm]. The point G at the bottom of the electronic circuit unit 5 3—5 and the point I at the bottom of the electronic circuit unit 5 3 _ 6 are provided at the same height, but the height of the tray plate 57 Since there is a difference of 50 [mm], N at point G is 110 [mm] and N at point I is 160 [mm], which is a difference of 50 [mm] between them. Table 4

l! mm ”As shown in Table 4 and Figure 18, connect to the lower point I of the electronic circuit unit 5 3-6. In the tray plate part 5 7-6 on which the mounted cable 54 is mounted, if the mounting angle 0 a is 0 [degree] and the rotation angle 0 b is 10 [degree], If 0a is 15 [degrees], the rotation angle 0b is 30 [degrees]. If the mounting angle 0a is 30 [degrees], the rotation angle 0b is 50 [degrees]. However, it can be seen that the cable is stretched and unnecessary tension is applied.

In this way, it is possible to select a desired mounting angle Θa and a rotation angle 電子 b of each electronic circuit unit 53 such that the cable 54 becomes slack and an extra length is generated.

For convenience of operation, it is desirable that the mounting angle 0a of the tray plate 57 is small and the rotation angle 回動 b is large. Further, the longer the length of the tray plate portion 57 in the Y direction is, the more easily the tray plate portion 57 can be operated even if the rotation angle Θb of the tray plate portion 57 is small.

As in the example shown in FIG. 3, there are a plurality of electronic circuit units 53 to which the cables 54 are connected, and a plurality of tray plate portions 57-1- to 57-4 overlap with the tray plate storage portion 55. First, the mounting angle 0a of the tray plate portion 57-1 to be mounted on the lowermost portion inside the tray plate storage portion 55 is determined. Next, the tray plate portion 57 provided on the tray plate portion 57 attached to the lowermost portion inside the tray plate storage portion 55 (in the order of the tray plate portion 57_2 to the tray plate portion 57-) In the order of 4), the mounting angle 4a is determined.

The mounting angle Θa of the tray plate portion 57 must be equal to or larger than the mounting angle 0a of the tray plate portion 57 provided thereunder. For example, the mounting angle 0a of the tray plate portion 571-2 must be equal to or greater than the mounting angle Θa of the tray plate portion 57-1. If the mounting angle 0a of the tray plate portion 57 is smaller than the mounting angle 0a of the tray plate portion 57 provided therebelow, the respective tray plate portions 57 come into contact with each other.

However, the mounting angle 0 a of each tray plate portion 57-1 to the tray plate portion 57-4 may be the same, and the rotation angle 0 b of each tray plate portion 57 may be the same. There may be.

Under such a structure, when connecting Cape Norre 54 to the electronic circuit unit 53, First, the electronic circuit unit 53 is stored in the electronic circuit unit storage 52 inside the shelf 51 of the communication device 50. Further, the tray plate portion 57 is stored in the tray plate storage portion 55 inside the communication device 50. In this state, the cable 54 is attached to the tray plate 57, and the end of the cable 54 is connected to the electronic circuit unit 53. The tray plate 57 attached to the cable 54 is stored in the tray plate storage 55 inside the communication device 50 so that it can rotate in the direction of the mounting angle Θa. Projection of the communication device 50 to the front is minimized. Thereby, space saving inside the communication device 50 is realized.

When removing the cable 54 from the electronic circuit cut 5.3, only the tray plate 57 on which the cable 54 to be removed is mounted is rotated and pulled out. The cable 54 attached to the tray plate portion 57 has an extra length as described above, and even if the tray plate portion 57 is rotated, unnecessary tension is not applied to the cable 54. Les ,.

By rotating and pulling out the tray plate portion 57, the cable 54 connected to the electronic circuit unit 53 can be easily removed and 11 operations can be performed. The tray plate portion 57 is provided for each cable connected to each electronic circuit unit 53, and the tray plate portions 57 are attached in a superimposed manner. Therefore, the operation of removing the cable 54 can be performed without touching the cable that is not the object of the removal operation.

The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications and changes can be made within the scope of the present invention.

For example, although a cable has been described as an example of the transmission wiring, the present invention can be applied to a case where the transmission wiring is an optical fiber. In addition, the present invention can be applied to electronic devices other than the communication device.

Claims

The scope of the claims

1. Equipped with an electronic circuit unit to which the transmission wiring is connected,

In the electronic device in which the transmission member to which the transmission wiring is attached, a mounting member is housed inside,

The electronic device, wherein the transmission wiring attachment member is provided rotatably with respect to the electronic device.

2. Equipped with a plurality of the electronic circuit units, and provided with a plurality of the transmission rods B / wire mounting members superimposed,

A transmission line connected to one electronic circuit unit is attached to one transmission line attachment member, and a transmission line connected to another electronic circuit unit is attached to another transmission line attachment member. 2. The electronic device according to claim 1, wherein:

3. The transmission wiring mounting member is

3. The electronic device according to claim 1, wherein the electronic device is provided at a predetermined mounting angle with respect to a horizontal plane.

4. The mounting angle of the one transmission wiring mounting member is

4. The electronic device according to claim 3, wherein an angle of attachment of the other transmission wiring attachment member provided below the one transmission wire attachment member is larger than an angle of attachment.

5. The mounting angle of the one transmission wiring mounting member is:

4. The electronic device according to claim 3, wherein a mounting angle of the other transmission rod mounting member provided below the one transmission wiring mounting member is the same.

6. The length from the center of rotation of the transmission wiring mounting member to the end of the transmission wiring mounting member is The electronic device according to any one of claims 2 to 5, wherein the electronic device is different depending on each of the transmission wiring attachment members.

7. The rotation angle of the transmission member is smaller as the length from the center of rotation of the transmission wiring member to the end of the transmission member is smaller. Electronic devices.

8. The position of the rotation center of the transmission wiring mounting member is

8. The transmission rooster mounting member is provided on a side where the transmission wiring mounting member is pivoted and pulled out from a mounting position of the transmission rooster ai in the mounting member. An electronic device as described.

9. The electronic device according to any one of claims 1 to 8, further comprising an interposition member interposed between the electronic device and the transmission wiring attachment member.

10. The transmission wiring mounting member includes a protrusion,

The interposition member includes a groove forming portion in which a projection of the transmission wiring attachment member is slidably engaged.

10. The electronic device according to claim 9, wherein the protrusion contacts the end of the tiff groove forming portion to restrict rotation of the transmission wiring attachment member.

1 1. a fan for air cooling the electronic circuit unit;

The electronic device further includes a fluid passage for introducing air from the fan to the electronic circuit unit, and the transmission rod / wire attachment member is provided in a space formed inside the electronic device and outside the fluid passage. The electronic device according to any one of claims 1 to 10, wherein the electronic device is stored.