JPH07202458A - Housing for electronic device - Google Patents

Abstract

PURPOSE:To obtain a housing for electronic device having drawer structure in which an optical fiber cable is employed for a internal signal path. CONSTITUTION:In the housing 1 for electronic devices, a drawer 11 moves back and forth within a frame body 6 and a second optical fiber cable 29, for transmitting a signal between the rear side of the drawer 11 and the back side of the frame body 6, is wound spirally around a pipe 24 above the frame body 6. Under each state where the drawer 11 is housed in the frame body 6, shifted therefrom, or opened, the second optical fiber cable 29 has the radius of curvature for limiting the transmission loss within an allowable range in the wiring path thereof.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is for transmitting a signal sent from the outside of a casing to a printed circuit board or the like mounted in a drawer, and for processing a signal processed on the printed circuit board to the outside of the casing. The present invention relates to an electronic device housing that uses an optical fiber cable for transmitting data to and has a drawer structure.

[0002]

2. Description of the Related Art Conventionally, in an electronic equipment casing having a drawer structure, a signal transmitted from the outside of the casing is transmitted to a printed circuit board or the like mounted in the drawer, and is processed on the printed circuit board. Electric signal cables such as flat cables and coaxial cables have been used as a method of transmitting such signals to the outside of the housing.

However, with the recent high-density mounting of printed circuit boards and the like, the amount of signals that can be processed by individual printed circuit boards and the like has increased, so that the amount of wiring per printed circuit board has increased.

As a result, the number of connectors for exchanging signals with the outside of the housing, the amount of wiring connecting the above-mentioned connector with the printed circuit board mounted on the drawer inside the housing, and the number of connectors at the relay points in the drawer. Has increased, which has been a great obstacle to reducing the size and weight of the housing.

On the other hand, when the warm air signal cable is used as the wiring, noise from the power cable for supplying power to the printed circuit board in the housing may adversely affect the signal, and the power source and the signal are structurally affected. It was necessary to consider the wiring route so that interference would not occur.

When the drawer structure is used for the housing structure, a signal transmitted from the outside of the housing is transmitted to a printed circuit board or the like mounted in the drawer, and a signal processed on the printed circuit board is used for the housing. In many cases, the signal cable that transmits to the outside of the body and the power cable take the same route, and in order to avoid the above electrical interference, it is necessary to intentionally separate the wiring in consideration of the shielding property. It was

FIG. 14 is a side sectional view of a typical electronic equipment housing with a drawer closed, FIG. 15 is a side sectional view with a drawer pulled out, and FIG. 16 is an upper surface with a drawer pulled out. A sectional view is shown.

In the figure, an electronic equipment housing 1 includes a panel 4 for fixing a first electric signal connector 2 and a first power supply connector 3, and a shield plate 5 standing upright on the panel 4.
A rectangular parallelepiped frame body 6 for fixing the panel 4 to the back surface, two outer rails 7 respectively fixed to the inner side surfaces of the frame body 6, and two inner rails 8 engaged with the outer rails 7, respectively. , A drawer 11 that is fixed between the inner rails 8 and can move inside and outside the frame 6 together with the inner rails 8 and that has a second electric signal connector 9 and a second power supply connector 10 on the back surface, and a drawer 11 on the back surface of the drawer 11. A bracket 12 for fixing the second electric signal connector 9 and the second power connector 10, a printed circuit board 13 housed in the drawer 11, a mother board 14 with which the printed circuit board 13 engages, and one end on the mother board side. A first electric signal cable 16 connected to the electric signal connector 15 and the other end to the second electric signal connector 9, and a bus bar on the motherboard 14 at one end. A first power cable 18 connected to the second power connector 10 and a second power connector 18 connected to the second power connector 10, and one end connected to the first electric signal connector 2 and the other end connected to the second electric signal connector 9. Second electrical signal cable 1 to connect
9 and ... The second power cable 20 has one end connected to the first power connector 3 and the other end connected to the second power connector 10.

Next, the operation will be described. The electric signal sent from the outside of the housing or the electric signal sent to the outside of the housing includes the first electric signal connector 2, the second electric signal cable 19, the second electric signal connector 10, and the first electric signal connector 10. It is transferred to and received from the mother board 14 mounted on the drawer 11 via an electric signal cable. The power supplied from the outside of the housing is supplied from the first power connector 3 to the second power cable 20, the second power connector 10, and the first power cable 1.
8, via the bus bar 17, is supplied to the motherboard 14 mounted on the drawer 11. The drawer 11 is mounted on the frame body 6 via an outer rail 7 and an inner rail 8. The second electric signal cable 19 and the second power cable 20 have a sufficient extra length so that the drawer 11 can be pulled out from the frame 6 without disconnecting the respective connectors.

In the electronic equipment casing 1, when the printed circuit board 13 mounted on the drawer 11 and the mother board 14 are maintained, the drawer 11 can be pulled out from the frame 6 to perform the work. Further, the shield plate 5 is an electromagnetic shield so that the electromagnetic waves generated in the second power cable 20 do not adversely affect the second electric signal cable 19 when the drawer 11 is housed in the frame body 6. It has been attached with the property.

[0011]

Since the electronic equipment casing having the conventional drawer structure is constructed as described above,
In a case requiring a large amount of signal exchange, a large number of connectors are arranged on the rear surface of the case, and the amount of wiring in the case is also very large, and the mass is accordingly large. Therefore, it cannot be said that the ratio of the wiring to the capacity of the housing is large in terms of the structure of the housing.

Further, the wiring by the electric signal cable is apt to receive the electric interference from the power cable, and special measures such as a shield must be provided inside the housing.

The present invention has been made in order to solve the above-mentioned problems, and an electronic device using an optical fiber cable characterized by ensuring good maintainability by a drawer structure and high signal transmission capability. The purpose of the present invention is to improve the efficiency of the equipment casing structure and to increase the reliability of signal transmission by using an optical fiber cable which is characterized by not receiving electrical interference.

In addition, in the optical fiber cable, in order to solve the problem that the required signal transmission ability cannot be maintained when the cable itself becomes less than a certain bending radius and the accurate signal cannot be transmitted, an electronic device using a drawer system is used. In the case where the optical fiber cable is used as the wiring inside the case, the optical fiber cable must always have a certain bending radius or more in each state of the drawer when it is stored, when it is moved, and when it is open.

[0015]

An electronic equipment housing according to the present invention is a panel for fixing a first optical adapter with a flange and a first power supply connector, and a first support plate standing upright on the panel. A rectangular parallelepiped frame body for fixing the panel to the back surface, two support plates standing upright on the inner surface of the upper surface of the frame body and parallel to each other, and two facing surfaces of the second support plate. A cylindrical pipe fixed between them, a semi-cylindrical first guide fixed to the rear end of the pipe, two outer rails fixed to the inside of both side surfaces of the frame body, and the outer rail Two inner rails that are engaged with each other, and are movable between the inner rail and the inner rail, which are fixed between the inner rails, and have a second optical adapter with a flange and a second power connector on the back surface. With a drawer A second guide having a curved surface fixed to the back of the drawer, a printed circuit board housed in the drawer, a mother board to which the printed circuit board engages, and one end connected to a connector on the mother board. A first optical fiber cable having optical connectors at both ends for connecting one end to one of the second flanged optical adapters on the back of the drawer, and one end connected to the first flanged optical adapter, and the first optical cable The first plate is fixed to the support plate and
It is spirally wrapped around the above pipe through the guide of
A second optical fiber cable connecting the other end to the second flanged adapter via the second guide, and
A first power cable having one end connected to the bus bar on the motherboard and the other end connected to the second power connector; and one end connected to the first power connector and the other end connected to the second power connector. It is composed of a second power cable connected to the power connector.

The electronic equipment casing according to the present invention is
A panel for fixing the first optical adapter with a flange and the first power supply connector, a first support plate standing upright on the panel, and a rectangular parallelepiped frame body for fixing the panel to the rear surface,
Two second support plates standing vertically to the inner surface of the upper surface of the frame body and parallel to each other, a cylindrical pipe fixed between the two facing faces of the support plate, and the pipe rear end. A semi-cylindrical first guide fixed to the inner side of the frame body, two outer rails fixed to the inner side surfaces of the frame body, two inner rails engaged with the outer rails, and the inner rail. It is fixed between the inner rail and the inner rail so that it can move inside and outside the frame,
The optical adapter with a flange and a drawer having a second power connector, a second guide having a curved surface fixed to the back surface of the drawer, a printed circuit board housed in the drawer, and the printed circuit board engage with each other. Between motherboard and 1
A first optical fiber cable having optical connectors at both ends, the ends being connected to the connector on the motherboard and the other end being connected to the optical adapter with the second flange on the back of the drawer; and one end having the first flange. It is connected to an optical adapter, is fixed to the first support plate, and is spirally wound around the pipe through the first guide, and the other end through the second guide. A second optical fiber cable to be connected to the flanged adapter, and a first power cable to be connected at one end to the bus bar on the motherboard and the other end to the second power connector, and
One end is connected to the first power connector and the other end is connected to the second power connector.
And a second power cable connected to the power connector, and a spiral elastic body along the second optical fiber cable having both ends fixed by the first guide and the second guide.

In the electronic equipment casing according to the present invention, a panel for fixing the first flanged optical adapter and the first power supply connector, a first support plate standing upright on the panel, and the panel are provided. A third guide having a curved surface to be fixed; a rectangular parallelepiped frame body for fixing the panel to the back surface; a first rail fixed to the inner surface of the upper surface of the frame body;
, A spring attached to the pulley so as to pull the pulley toward the back of the frame, a semi-cylindrical fourth guide fixed to the upper surface of the frame, and both sides of the frame. Two outer rails fixed to the inside of the surface, two inner rails engaged with each of the outer rails, and fixed between the inner rails are movable inside and outside the frame together with the inner rails. A drawer having a second optical adapter with a flange and a second power connector on the back surface, a second guide having a curved surface fixed to the back surface of the drawer, a printed circuit board housed in the drawer, and the print A mother board to which the board engages, and an optical connector connecting one end to the connector on the mother board and the other end to the second flanged optical adapter on the back of the drawer. A first optical fiber cable having a connector at both ends and one end connected to the first optical adapter with a flange and fixed to the first support plate, the third guide, the fourth guide, the A second optical fiber cable, the other end of which is connected to the second flanged adapter via the pulley and the second guide, and one end of which is connected to a bus bar on the motherboard, and the other end is connected to the second A first power cable to be connected to the power connector and one end to the first power connector, and through the third guide, the fourth guide, the pulley, the second guide, etc. A second power cable whose end is connected to the second power connector, and one end fixed to the fourth guide,
The optical fiber cable and the elastic body that fixes the other end to the second guide via the pulley along the second power cable.

The electronic equipment casing according to the present invention is
A panel for fixing the first optical adapter with a flange and the first power supply connector, a first support plate standing upright on the panel, and a second rail standing upright on the panel,
A pulley that can move up and down on the second rail, a rectangular parallelepiped frame body that fixes the panel to the back surface, two outer rails that are fixed to the insides of both side surfaces of the frame body, and the outer rail, respectively. Drawer having two inner rails engaged with each other, fixed between the inner rails, movable inside and outside the frame together with the inner rail, and having a second flanged optical adapter and a second power connector on the back surface. A second guide having a semi-cylindrical shape fixed to the back surface of the drawer, a printed board housed in the drawer, a mother board housed in the drawer and engaged with the printed board, 1 A first optical fiber connector having optical connectors at both ends, one end of which is connected to the connector on the motherboard and the other end of which is connected to the second flanged optical adapter on the back of the drawer. And Iba cable, the one end first
A second optical fiber cable which is connected to the flanged adapter and is fixed to the first support plate, and the other end of which is connected to the second flanged adapter via the pulley and the second guide, A first power cable connecting one end to the bus bar on the motherboard and the other end to the second power connector; and one end connecting to the first power connector, the pulley, the second A second power cable, the other end of which is connected to the second power connector via the guide, and one end fixed to the first support plate, the second optical fiber cable, and the second power source. It is configured by an elastic body that fixes the other end to the guide via the pulley along the cable.

[0019]

The electronic device housing according to the present invention outputs an optical signal for inputting a signal necessary for processing inside the housing from the outside and for outputting a signal processed inside the housing to the outside. I am using. On the rear surface of the housing, there is an optical adapter with a flange that is smaller than a general electrical signal connector for transmitting and receiving signals to and from the outside of the housing and that can transmit the same amount of signals with a small number. Therefore, the electronic device housing according to the present invention is less in number than an electric signal cable such as a flat cable or a coaxial cable for exchanging a signal input from the outside and a signal between a printed circuit board mounted in the drawer. It had an optical fiber cable that could transmit the same signal with the number of wires. As described above, by transmitting and receiving signals from the outside of the housing to the printed circuit board mounted in the drawer by optical signals, the number of connectors mounted on the back of the housing, the number of cables in the housing, and the back of the drawer are mounted. The number of connectors to be used can be reduced and the number can be reduced. From the above, the number of connectors mounted in the housing,
The mass of the entire housing can be reduced by reducing the number of wires and the amount of wires.

Further, in the case of the present invention, by using an optical signal which has less loss as compared with an electric signal transmitted in an electric wire such as a copper wire and which is not interfered with from other signals, an accurate signal can be transmitted. It is possible to input an accurate signal to the printed circuit board and the like and to accurately output a signal from the printed circuit board and the like. On the other hand, in the case of optical fiber cable, if the cable itself does not always ensure a certain bending radius or more,
Optical transmission loss increases and accurate signal transmission becomes impossible. In consideration of the above, even when the drawer is stored, moved, or released, the changing part of the optical fiber cable that connects the optical adapter with flange mounted on the outer circumference of the housing and the drawer is bent It is necessary to consider so that the radius or more can be secured. The housing of the present invention has a pipe having a diameter equal to or larger than a required bending radius above the housing,
As a variable part of the above-mentioned optical fiber cable, by spirally winding the optical fiber cable in a state with a certain extra length around the pipe, the advantage of using an optical signal is not lost, and a drawer type printed circuit board, etc. Maintainability can be secured.

Further, according to the present invention, by covering the outer circumference of the optical fiber cable with an elastic body such as a tube-shaped resin in the varying portion of the optical fiber cable, friction occurring between the pipe and the optical fiber cable is eliminated and at the same time stress such as tension is exerted. Can be prevented and deterioration of the optical fiber cable can be prevented.

Further, according to the present invention, when a large amount of wiring is generated between the optical adapter with a flange mounted on the outer circumference of the housing and the drawer, the diameter of the bending radius larger than the required bending radius is provided in the changing portion of the optical fiber cable above the housing. By using a pulley that has a housing and is movable in the front-back direction of the housing, and has a spring that pulls the pulley toward the rear surface of the housing, a wide wiring path can be secured in the lateral direction, and even for a large amount of wiring, It can be routed along the wiring route. In addition, by fixing the elastic body to the bending side inside the optical fiber cable at the part where the tensile force is applied to the optical fiber cable, the tensile force does not work directly on the optical fiber cable, preventing deterioration of the optical fiber cable. It is possible.

Further, according to the present invention, the variable portion of the optical fiber cable is located at the rear of the housing, and a pulley having a diameter larger than a required bending radius and movable in the direction of gravity is used. By using the structure in which the elastic body is fixed to the bending side in the optical fiber cable, it is possible to suppress the height dimension of the housing.

[0024]

【Example】

Example 1. FIG. 1 is a perspective view showing a state where a drawer is pulled out from a frame body in an electronic device housing having a drawer structure.
Is a cross-sectional view of the state where the drawer is stored in the frame, as seen from the side,
FIG. 3 is a cross-sectional view of the electronic device housing in a state where a drawer is pulled out from a frame as seen from a side surface, and FIG. 4 is a cross-sectional view of the electronic device housing in which a drawer is pulled out from a frame as seen from an upper surface. It is a figure.

The electronic equipment housing 1 according to the present invention includes a panel 4 for fixing the first flanged optical adapter 21 and the first power supply connector 3, and a first panel vertically installed on the panel 4.
Support plate 22, a rectangular parallelepiped frame body 6 for fixing the panel to the back surface, two second support plates 23 standing upright in parallel to each other inside the upper surface of the frame body 6, and A cylindrical pipe 24 fixed between two facing surfaces of the second support plate 23, a semi-cylindrical first guide 25 fixed to the rear end of the pipe 24, and inside both side surfaces of the frame body 6. Two outer rails 7 fixed to the outer rails 7 and two inner rails 8 engaged with the outer rails 7 respectively.
And a drawer 11 that is fixed between the inner rails 8 and is movable inside and outside the frame 6 together with the inner rails 8 and that has a second flanged optical adapter 26 and a second power connector 10 on the back surface. A second guide 27 having a curved surface fixed to the back surface of the drawer 11, a printed board 13 housed in the drawer 11, a mother board 14 to which the printed board 13 engages, and one end of the mother board 14 A first optical fiber cable 28 having at both ends an optical connector that is connected to the upper connector 15 and the other end is connected to the second flanged adapter 26 on the back of the drawer 11, and one end is the first flanged optical fiber 28. Adapter 2
1 is fixed to the first support plate 22, and is spirally wound around the pipe 24 through the first guide 25, the second gad 27, and the second end at the second end.
Second optical fiber cable 29 connected to the above-mentioned flanged adapter 26, and a first power cable connecting one end to the bus bar 17 on the motherboard 14 and the other end to the second power connector 10. 18 and a second power cable 20 having one end connected to the first power connector 3 and the other end connected to the second power connector 10.

Next, the operation will be described. The signal sent from outside the housing or the signal sent to the outside of the housing is
From the first optical connector with flange 21 to the second optical fiber cable 29, the second optical connector with flange 26,
The drawer 11 is connected via the first optical fiber cable 28.
It is transferred to and received from the mother board 14 mounted on. The power sent from the outside of the housing is from the first power connector 3
It is supplied to the motherboard 14 mounted on the drawer 11 via the second power cable 20, the second power connector 10, the first power cable 18, and the bus bar 17. The drawer 11 is mounted on the frame body 6 via an outer rail 7 and an inner rail 8.

The second optical fiber cable 29 and the second power cable 20 are wound around the pipe 24 with a sufficient extra length so that the drawer 11 can be pulled out from the frame 6 without disconnecting the respective connectors. ing. Pipe 2
4, the first guide 25, and the second guide 27 have a diameter equal to or larger than the bending radius at which the second optical fiber cable 29 causes transmission loss. The electronic device housing 1 is a drawer 1.
When the maintenance of the printed circuit board 13 and the mother board 14 mounted on the board 1 is performed, the frame 6 is pulled out to the drawer 11
Can be pulled out to do the work. In addition, when the drawer 11 is housed in the frame 6 and is open or moving, the second optical fiber cable 2
The portion of the pipe 9 that is spirally wound around the pipe 24 expands and contracts like a spring.

Example 2. FIG. 5 is a cross-sectional view of the electronic equipment casing according to the second embodiment of the present invention in which a drawer is housed in a frame body as seen from a side surface, and FIG. FIG. 7 is a cross-sectional view of a state where the drawer is pulled out from the frame body in the electronic device housing, which is seen from the upper side.

The electronic device housing 1 according to the present invention includes a panel 4 for fixing the first flanged optical adapter 21 and the first power supply connector 3, and a first panel vertically installed on the panel 4.
Support plate 22, a rectangular parallelepiped frame body 6 for fixing the panel 4 to the back surface, two support plates 23 standing upright in parallel to each other on the inner surface of the frame body 6, and the second frame. Cylindrical pipe 2 fixed between two facing surfaces of the support plate 23 of the
4 and a cylindrical first fixed to the rear end of the pipe 24.
Fixed between the inner rail 8 and the two guides 25, two outer rails 7 fixed to the inner side surfaces of the frame 6, two inner rails 8 engaged with the outer rails 7, respectively. A drawer 11 that is movable inside and outside the frame 6 together with the inner rail 8 and has a second flanged optical adapter 26 and a second power connector 10 on the back surface, and a curved surface fixed to the back surface of the drawer 11. The second guide 27, the printed circuit board 13 housed in the drawer 11, and the printed circuit board 13
Is connected to the connector 15 on the motherboard 14, and the other end is connected to the drawer 1.
1st optical fiber cable 28 which has the optical connector which connects to the 2nd optical adapter 26 with a flange on the back
And one end is connected to the first flanged optical adapter 21, is fixed to the first support plate 22, and is spirally wound around the pipe 24 via the first guide 25. A second optical fiber cable 29, the other end of which is connected to the second adapter with flange 26, and one end of which is connected to the bus bar 17 on the motherboard 14, and the other end of which is the second via the second guide 27. Power connector 10
The first power cable 18 to be connected to the
Second power cable 20 connected to the power connector 3 and the other end connected to the second power connector 10, and the first guide 25 and the second guide 27 fixing both ends to the second power cable 20. It is constituted by a spiral elastic body 30 along the second optical fiber cable 29.

The electronic equipment casing 1 in the second embodiment is
The outer periphery of the second optical fiber cable 29 of the electronic device housing according to the first embodiment is covered with a spiral elastic body 30.

Example 3. FIG. 8 is a cross-sectional view of the electronic equipment casing according to the third embodiment of the present invention in which a drawer is housed in a frame as seen from a side surface, and 98 is a drawer of the drawer in the electronic equipment casing. FIG. 10 is a cross-sectional view of the state of the electronic device housing seen from the side, and FIG.

The electronic equipment casing 1 shown in the figure has a panel 4 for fixing the first optical adapter with flange 21 and the first power supply connector 3, and a first support plate 22 standing upright on the panel 4. A third having a curved surface fixed to the panel
Guide 31, a rectangular parallelepiped frame body 6 for fixing the panel 4 to the back surface, a first rail 32 fixed to the inner surface of the upper surface of the frame body 6, and a pulley 33 movable on the first rail 32. A spring 34 attached to the pulley 33 so as to pull it toward the back of the frame body 6, a semi-cylindrical fourth guide 35 fixed to the upper surface of the frame body 6, and inner surfaces of both side surfaces of the frame body 6. Two outer rails 7 fixed to each
And two inner rails 8 that engage with the outer rails 7, respectively, are fixed between the inner rails 8 and can move inside and outside the frame 6 together with the inner rails 8, and have a second flange on the back surface. A drawer 11 having an optical adapter 26 and a second power connector 10, and a second guide 27 having a curved surface fixed to the back surface of the drawer 11.
And a printed circuit board 13 housed in the drawer 11
And the mother board 14 with which the printed circuit board 13 is engaged.
And a first optical fiber cable 28 having one end connected to a connector on the motherboard 14 and the other end connected to the second flanged optical adapter 26 on the rear surface of the drawer 11, and one end It is connected to the first optical adapter with a flange 21 and is fixed to the first support plate 22, and through the third guide 31, the fourth guide 35, the pulley 33, and the second guide 27. A second optical fiber cable 29 having the other end connected to the second flanged adapter 26, and one end connected to the mother board 14
A first power cable 18 connected to the upper bus bar 17 and the other end to the second power connector 10, and one end connected to the first power connector 3, and the third guide 31. , The second power cable 20 having the other end connected to the second power connector 26 via the fourth guide 35, the pulley 33, and the second guide 27, and one end of the second power cable 20. Of the second optical fiber cable 29 and the second power cable 20 via the pulley 33, and the other end is fixed to the second guide 27 by an elastic body 36. It

Next, the operation will be described. The signal sent from the outside of the housing or the signal sent to the outside of the housing is transmitted from the first optical connector with flange 21 to the second optical fiber cable 29, the second optical connector with flange 26, and the first optical fiber. The data is transmitted / received to / from the mother board 14 mounted on the drawer 11 via the cable 28. The power supplied from the outside of the housing is fed from the first power connector 3
It is supplied to the motherboard 14 mounted on the drawer 11 via the second power cable 20, the second power connector 10, the first power cable 18, and the bus bar 17. The drawer 11 is mounted on the frame body 6 via an outer rail 7 and an inner rail 8.

In the first rail 32, the pulley 33 is
The second optical fiber cable 29 and the second power cable 20 have a sufficient movement amount so that the drawer 11 can be pulled out from the frame 6 without disconnecting the respective connectors, and at the same time, the second optical fiber cable 29, Also, the second power cable 20 has a sufficient extra length. The pulley 35 has a diameter equal to or larger than the bending radius at which the second optical fiber cable 29 causes transmission loss.

The electronic device housing 1 can be pulled out of the frame 6 and used for the maintenance of the printed circuit board 13 mounted on the drawer 11 and the motherboard 14. The second guide 27,
The third guide 31 and the fourth guide 35 have a diameter equal to or larger than the bending radius at which the second optical fiber cable 29 causes transmission loss. The spring 34 expands and contracts so that the pulley can be operated smoothly when the drawer 11 is housed in the frame 6. The elastic body 36 is attached so that tension is not applied to the second optical fiber cable 29 when the drawer 11 is housed in the frame body 6, opened, or moving.

Example 4. FIG. 11 is a cross-sectional view of the electronic equipment casing according to the fourth embodiment of the present invention in which a drawer is housed in a frame as seen from a side surface, and FIG. 12 is the electronic equipment casing in which the drawer is removed from the frame. FIG. 13 is a cross-sectional view of a state in which the drawer is pulled out from the frame body in the electronic device housing, as viewed from the top, as viewed from the side.

The electronic device housing 1 in the figure has a panel 4 for fixing the first flanged optical adapter 21 and the first power supply connector 3, and a first support plate 22 standing upright on the panel 4. A second rail 37 standing upright on the panel 4, a pulley 33 movable up and down on the second rail 37, a rectangular parallelepiped frame body 6 for fixing the panel 4 to the back surface, Two outer rails 7 that are respectively fixed to the inner side surfaces of the frame body 6, two inner rails 8 that engage with each of the outer rails 7, and an inner rail 8 that is fixed between the inner rails 8 and A drawer 11 that is movable inside and outside the frame 6 and that has a second flanged optical adapter 26 and a second power connector 10 on the back surface, and a semi-cylindrical shape that is fixed to the back surface of the drawer 11. The guide 26, the printed circuit board 13 housed in the drawer 11, the motherboard 14 housed in the drawer 11 and to which the printed circuit board 13 engages, and one end of which is connected to the connector on the motherboard 14, A first optical fiber cable 28 having optical connectors at both ends for connecting the other end to the second flanged optical adapter 26 on the back of the drawer 11, and one end connected to the first flanged optical adapter 21, First support plate 22
Fixed to the second optical fiber cable 29 having the other end connected to the second flanged adapter 26 via the pulley 33 and the second guide 36, and one end to the bus bar 17 on the motherboard 14. A first power cable 1 which is connected and the other end is connected to the second power connector 10.
8 and a second power cable 20 having one end connected to the first power connector 3 and the other end connected to the second power connector 26 via the pulley 33 and the second guide 27. One end is fixed to the first supporting plate 22, the second optical fiber cable 29 and the second power cable 20 are passed through the pulley 33, and the other end is the second optical cable.
It is constituted by an elastic body 36 fixed to the guide 27.

[0038]

As described above, according to the present invention, conventionally, an electronic device having a drawer structure having a connector for an electric signal on the rear surface of the housing for receiving the electric signal from the outside of the housing and sending the electric signal to the outside of the housing. With respect to the device housing, by using a flanged optical adapter for optical signals that has a large signal transmission amount and a small occupied area in place of the electrical signal connector, the total occupied area of the connector on the rear surface of the housing can be reduced, It is possible to secure a physical capacity for mounting components such as a cooling system necessary for the electronic device housing.

Particularly in an electronic device casing having a drawer structure, since the wiring path inside the casing is long, the effect obtained by using an optical fiber cable with a small transmission loss for the wiring inside the casing is great.

Furthermore, by using an optical fiber cable having a larger signal transmission amount than the electric signal cable for signal transmission in the housing, the amount of wiring in the housing can be reduced.

Further, conventionally, when signals are transmitted and received in and out of the housing by an electric signal, a wiring path having a shield property is intentionally shielded in order to prevent the signal system from being adversely affected electromagnetically by the power supply system. However, by using an optical signal for the signal system, the signal is not subject to electromagnetic interference from the power supply system, and it is not necessary to take special measures for the wiring path.

Further, even when the travel amount of the drawer increases due to an increase in the number of printed circuit boards mounted on the drawer, the wiring itself has a tension when the drawer itself moves by covering the wiring with an elastic body. Wiring does not get entangled in.

Further, in the case of the optical fiber cable, if the cable itself becomes less than a certain bending radius, the required signal transmission ability cannot be maintained and an accurate signal cannot be transmitted. The optical fiber cable can always have a certain bending radius or more in its wiring path even when it is moving, moving, or open.

The electronic equipment casing maintains the maintainability of the drawer structure casing without impairing the advantages of using the above-mentioned optical fiber cable.

[Brief description of drawings]

FIG. 1 is a perspective view showing an external appearance of an electronic device housing having a drawer structure of the present invention.

FIG. 2 is a side sectional view of a state in which a drawer is housed in a frame body according to the first embodiment of the present invention.

FIG. 3 is a cross-sectional view showing a state in which the drawer is pulled out from the frame body, as seen from the side surface, in the first embodiment of the present invention.

FIG. 4 is a cross-sectional view of the drawer, which is pulled out from the frame body, according to the first embodiment of the present invention, as seen from above.

FIG. 5 is a side sectional view of a state in which a drawer is housed in a frame body according to the second embodiment of the present invention.

FIG. 6 is a cross-sectional view of the drawer according to the second embodiment of the present invention, showing the drawer pulled out from the frame, as seen from above.

FIG. 7 is a cross-sectional view showing a state in which a drawer is pulled out from a frame body according to the second embodiment of the present invention, as viewed from above.

FIG. 8 is a cross-sectional view of a state in which a drawer is housed in a frame body as seen from a side surface in the third embodiment of the present invention.

FIG. 9 is a side sectional view of the drawer according to the third embodiment of the present invention with the drawer pulled out from the frame.

FIG. 10 is a cross-sectional view of the drawer, which is pulled out from the frame body, as seen from above in the third embodiment of the present invention.

FIG. 11 is a side sectional view of a state in which a drawer is housed in a frame body according to the fourth embodiment of the present invention.

FIG. 12 is a side sectional view showing a state in which the drawer is pulled out from the frame in the fourth embodiment of the present invention.

FIG. 13 is a cross-sectional view of the drawer of the drawer according to the fourth embodiment of the present invention, which is viewed from above.

FIG. 14 is a cross-sectional view of a conventional housing in which a drawer is housed in a frame as viewed from the side.

FIG. 15 is a cross-sectional view of a conventional housing in which a drawer is pulled out from a frame as viewed from a side surface.

FIG. 16 is a cross-sectional view of a drawer in which a drawer is pulled out from a frame in a conventional housing, as viewed from above.

[Explanation of symbols]

 1 Electronic Equipment Housing 2 First Electrical Signal Connector 3 First Power Connector 4 Rear Panel 5 Shield Plate 6 Frame 7 Outer Rail 8 Inner Rail 9 Second Electrical Signal Connector 10 Second Power Connector 11 Drawer 12 Bracket 13 Printed Circuit Board 14 Motherboard 15 Connector on Motherboard 16 First Electric Signal Cable 17 Bus Bar 18 First Power Cable 19 Second Electric Signal Cable 20 Second Power Cable 21 First Optical Connector with Flange 22 First Support plate 23 Second support plate 24 Second power connector 25 First guide 26 Optical connector with second flange 27 Second guide 28 First optical fiber cable 29 Second optical fiber cable 30 Spiral elastic body 31 Third Guide 32 First Rail 33 Pulley 4 spring 35 the fourth guide 36 the elastic body 37 second rail

Claims (4)

[Claims] 1. A panel for fixing a first optical adapter with a flange and a first power supply connector, a first supporting plate standing upright on the panel, and a rectangular parallelepiped frame body for fixing the panel to the back surface. And two second support plates that are erected perpendicularly to the inner surface of the upper surface of the frame and parallel to each other, and a cylindrical pipe fixed between the two facing surfaces of the second support plate. ,
A semi-cylindrical first guide fixed to the rear end of the pipe, two outer rails fixed to the inner side surfaces of the frame body, and two inner rails engaged with the outer rails. Fixed between the inner rails, movable inside and outside the frame together with the inner rails, and on the back surface with a second flanged optical adapter and a second optical adapter.
A drawer having a power connector, a second guide having a curved surface fixed to the back surface of the drawer, a printed circuit board housed in the drawer, a mother board to which the printed circuit board engages, and one end of the mother board. A first optical fiber cable having an optical connector at both ends which is connected to the upper connector and the other end is connected to the second flanged optical adapter on the back of the drawer, and one end is connected to the first flanged adapter Then, it is fixed to the first support plate and is spirally wound around the pipe through the first guide, and the other end is connected to the second flanged optical adapter through the second guide. The second optical fiber cable to be connected, one end is connected to the bus bar on the motherboard, and the other end is connected to the second power connector. Electronics enclosure, characterized in that connected to the second power connector, comprising a second end and a second power cable that is connected to the first power connector. 2. A panel for fixing the first flanged optical adapter and the first power connector, a first support plate standing upright on the panel, and a rectangular parallelepiped frame body for fixing the panel to the rear surface. And two second support plates that are erected perpendicularly to the inner surface of the upper surface of the frame and parallel to each other, and a cylindrical pipe fixed between the two facing surfaces of the second support plate. ,
A semi-cylindrical first guide fixed to the rear end of the pipe, two outer rails fixed to the inner side surfaces of the frame body, and two inner rails engaged with the outer rails. Fixed between the inner rails, movable inside and outside the frame together with the inner rails, and on the back surface with a second flanged optical adapter and a second optical adapter.
A drawer having a power connector, a second guide having a curved surface fixed to the back surface of the drawer, a printed circuit board housed in the drawer, a mother board to which the printed circuit board engages, and one end of the mother board. A first optical fiber cable having an optical connector at both ends which is connected to the upper connector and the other end is connected to one of the second flanged optical adapters on the back of the drawer, and one end is the first flanged optical adapter. It is connected to an adapter, is fixed to the first support plate, and is spirally wound around the pipe through the first guide, through the second guide, and the other end is at the second side.
Second optical fiber cable to be connected to the flanged adapter of the above, a first power cable to which one end is connected to the bus bar on the motherboard and the other end is connected to the second power connector, and one end is the above A second power cable which is connected to the second power connector and the other end of which is connected to the second power connector, and the second optical fiber cable which is fixed at both ends by the first guide and the second guide. An electronic device housing, comprising: a spiral elastic body extending along the line. 3. A panel for fixing the first flanged optical adapter and the first power connector, a first support plate standing upright on the panel, and a third curved surface fixed to the panel. Of the guide, a rectangular parallelepiped frame body for fixing the panel to the back surface, a first rail fixed to the inner surface of the upper surface of the frame body, a pulley that can move on the first rail, and the pulley. A spring attached so as to be pulled toward the back of the body, a semi-cylindrical fourth guide fixed to the upper surface of the frame, two outer rails fixed to the inside of both side surfaces of the frame, and the outer. Two inner rails that engage with each of the rails, and a second flanged adapter and a second power supply connector that are fixed between the inner rails and can move inside and outside the frame together with the inner rails. A drawer having, a second guide having a curved surface fixed to the back surface of the drawer, a printed board housed in the drawer, a mother board to which the printed board engages, and one end to a connector on the mother board. A first optical fiber cable having optical connectors at both ends, which are connected to each other and the other end to the second flanged optical adapter on the back of the drawer; and one end connected to the first flanged optical adapter, The third guide, the fourth guide, the pulley, and the second fixed to the first support plate.
Second optical fiber cable, the other end of which is connected to the second flanged adapter, and one end of which is connected to the bus bar on the motherboard, and the other end of which is connected to the second optical fiber cable.
A first power cable to be connected to the power connector of, and one end is connected to the first power connector, and through the third guide, the fourth guide, the pulley, the second guide, A second end that connects the other end to the second power connector
Fix the power cable and one end to the fourth guide,
An electronic device housing comprising: the second optical fiber cable; and an elastic body that fixes the other end to the second guide via the pulley along the second power cable. 4. A panel for fixing the first flanged optical adapter and the first power supply connector, a first support plate standing upright on the panel, and a second supporting plate standing upright on the panel. A rail, a pulley that can move up and down on the second rail, a rectangular parallelepiped frame body that fixes the panel to the back surface, and two outer rails that fix inside the side surfaces of the frame body, respectively. Two inner rails engaged with the outer rails respectively, fixed between the inner rails, movable inside and outside the frame together with the inner rails, and a second flanged optical adapter and a second optical adapter on the back surface.
A drawer having a power connector, a second guide having a semi-cylindrical shape fixed to the back surface of the drawer, a printed circuit board housed in the drawer, and a printed circuit board housed in the drawer. With a matching motherboard,
A first optical fiber cable having optical connectors at both ends, one end of which is connected to the connector on the motherboard and the other end of which is connected to the second flanged optical adapter on the back of the drawer; Connect to an optical adapter with a flange,
A second optical fiber cable fixed to the first support plate and having the other end connected to the second flanged adapter via the pulley and the guide, and one end connected to the first power connector And a second power cable for connecting the other end to the second power connector via the pulley and 1
From an elastic body having an end fixed to the first support plate, the second optical fiber cable, the second power cable, the pulley, and the other end fixed to the second guide. An electronic device housing characterized by the following.