JP2880977B2 - Equipment housing structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device housing structure for a base station communication device or the like, and more particularly, to a device housing structure in which a plurality of device housings are collectively installed in a small space.

[0002]

2. Description of the Related Art The shape of a housing forming an outer case of a base station communication device is generally a rectangular or cubic box. Normally, in a base station, as shown in FIGS. 8A and 8B, for example, the device housings 2 of a plurality of communication devices 1 of the same type or different types are laid out vertically and horizontally.

The equipment housing 2 of each communication device 1 is, for example, partitioned into a box shape in several vertical stages, and each stage is provided with a flat printed circuit board, a semiconductor device package, or an electronic component 5 such as a board module. It can be inserted and implemented. Various cables 6 for power supply and transmission / reception necessary for the device are introduced from the back surface 4 of the device housing 2.

[0004] In order to perform maintenance and inspection of the apparatus, the device housings 2 arranged side by side are installed with the front face 3 facing forward.
o Back).

On the other hand, as a conventional example of the arrangement structure of this type of apparatus housing, there is a printed board apparatus and a remote monitoring control apparatus described in Japanese Patent Application Laid-Open No. 6-177562.

In this apparatus, a device housing is formed in a cylindrical shape, and printed boards mounted inside the housing are arranged in a non-parallel radial pattern, and the electrical function is divided for each board. The components are mounted so as to face the outside of the board.

[0007]

The former case shown in FIG. 8 as an example of a conventional general housing structure has the following problems to be solved.

First, it is difficult to make effective use of the limited installation space. That is, external cables 6 for power supply and transmission / reception are externally connected on the rear surface 4 side of each device housing 2.
Therefore, at the time of wiring connection, it is necessary to allow a worker to work around the back surface 4 of the device housing 2 and work. Providing a space on the rear surface 4 only for such a work purpose would allow a very large work space in the case of a considerable number of multiple units to be installed, which is extremely uneconomical.

One is that, in order to easily perform the work, the orientation and position of each equipment housing 2 cannot be freely changed. Particularly, in the case of a base station communication device or device, work may be performed in a place where it is not possible to go around the rear surface 4 side. In such a case, pull out the device housing 2 toward you,
The wiring work of the external cable 6 is performed on the rear surface 4, and after the work is completed, the device housing 2 is pushed back to the original position. In particular, in the case of the communication device 1, the device housing 2 has a relatively large amount of heavy material, and working on the heavy material in a narrow place is inconvenient in terms of risk and work loss.

On the other hand, in the case of the latter device described in Japanese Patent Application Laid-Open No. 6-177562, there are the following problems to be solved.

One is a structure in which a printed circuit board, which is a mounted electronic component, is mounted in a non-parallel manner and radially. Therefore, the number of mounted components is limited and limited, and the limited space cannot be fully utilized.

First, since the electrical functions are divided for each board, it is often impossible or difficult to expand the system as needed.

Therefore, an object of the present invention is particularly suitable for an equipment housing of a base station communication device, a large number of devices can be installed in a limited small space, and in extreme cases, the layout of each device is unnecessary. In addition, it is an object of the present invention to provide a device housing structure that can easily perform maintenance and inspection work on the device housing of each device.

Another object of the present invention is to dispose a large number of equipment housings in a small space, thereby minimizing the distance between the equipments, minimizing the connection cable between the equipments, and reducing the cable cost. Another object of the present invention is to provide a device housing structure which is effective for preventing deterioration of radio characteristics as a base station communication device by using the shortest cable.

[0015]

According to the present invention, there is provided an apparatus housing structure having a vertically fixed vertically standing internal hollow support at the center, and a housing support plate rotatable around the fixed support. Turntable provided with the housing carrying plate
Supported on the turntable and rotatably supported on the turntable
Together are, toward toward the back portion to said fixed post, a front portion for insertion and removal of the mounted components on the outside, around the fixed post
A plurality of device housings radially arranged on the device housing, and the device housing
Formed on each back part corresponding to the upper and lower partitions of the device housing
And the electric heat generated in the device housing is
That through the section and a waste heat duct to dissipate
Features .

Therefore, with this configuration, by changing the positions of a plurality of equipment housings to an arbitrary angle and orientation on the turntable, the maintenance and inspection work for each equipment housing can be changed to a desired position, and the mounted parts can be mounted. The front part to be inserted and removed can always be brought to the front side.

Further, since a plurality of equipment casings are arranged radially on a turntable, special arrangement space and layout considerations are almost unnecessary as in the prior art, and the equipment casings are extremely close to each other. Therefore, the length of the cable between the devices is the shortest, and especially when the cable is used for a wireless station communication device, it is effective to prevent a decrease in communication characteristics.

[0018]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing the configuration of an apparatus housing structure for a base station communication apparatus according to an embodiment of the present invention.

FIG. 1 is an exploded perspective view showing the present structure.
The four box-shaped device housings 10 which are partitioned into several vertical stages in the vertical direction are assembled in a form orthogonal to each other in a back-to-back manner, that is, as a radial cross-shaped integrated structure when viewed from a plane.

The four device housings 10 are supported on a disk-shaped housing supporting plate 11, and the housing supporting plate 11 is rotatably supported on a disk-shaped turntable 12 as an apparatus base. I have. That is, a bearing ring 13 in which a large number of steel balls or the like are connected in an annular shape on the upper surface of the turntable 12.
The housing supporting plate 11 is mounted on the bearing ring 13, and the positions of the four device housings 10 are variable by rotational displacement in all directions of 360 °.

At the center of the upper surface of the turntable 12, a column 14 having a hollow cylindrical shape is fixed upright in the vertical direction. The four device housings 10 are radially cross-shaped from the pillars 14 with their fronts facing outward.
1 and rotates about the support 14. Prop 14
The external cable 6 for power supply and transmission / reception shown in FIG. 8 of the conventional example is inserted and introduced using the hollow interior 14a.

The rotation of the housing supporting plate 11 on the turntable 12 can be stopped by the rotation lock mechanism 15. This rotation lock mechanism 1
Reference numeral 5 has a locking claw 15a which can be protruded and retracted from the upper surface of the turntable 12. The pop-out operation and the retraction operation of the locking claw 15a are performed by an operator performing a foot operation on the lock operation pedal 16. Housing support plate 1 at a position corresponding to locking claw 15a
1 is provided with a cut-out lock hole 11a, and a locking claw 15a is engaged with and disengaged from the lock hole 11a.
It enables a fixed position of 0 and a rotational displacement.

The locking claw 15a of the rotation lock mechanism 15
Not limited to individual locations. Several pieces can be provided in several places on the same circumference. A number of lock holes 11a corresponding to the number of the installation claws 15a are provided on the housing supporting plate 11 side.

As is apparent from both FIGS. 2 and 3, the upper ends of the four device housings 10 are fixed by fixing covers 17 and are covered by a top plate 18 from above. The upper top plate 18 and the above-mentioned housing supporting plate 1
1 is an upper and lower fixing member, and the four device housings 10 are covered from outside by a cylindrical protective cover 20 including a front cover 21 and a decorative cover 22. The front cover 20 is formed of a transparent material and covers each front part of the four device housings 10 so that operation inside each device housing 10 can be checked. The decorative cover 21 is disposed between the adjacent device housings 1.
The space between the zeros is covered from the outside to enhance the appearance.

On the other hand, as shown in FIGS. 4 and subsequent figures, metal conductive members 30 are provided in a ring shape along the peripheral surface of the support column 14 and at equal intervals over the entire length of the column height. In the present embodiment, a plurality of the ring-shaped conductive members 30 are provided at equal intervals in the vertical direction corresponding to the number of partitions in the device housing 10 (the electronic components 5 are mounted on each partition). . These conductive members 30 are electrically connected to an external power cable 6 for power supply and transmission / reception which is routed inside the hollow of the column 14.

4 and 5, conductive brushes 31 are provided at equal intervals in the height direction on the back side of each of the four device housings 10, and each of the ring-shaped conductive members 30 provided on the column 14 is provided with a conductive brush 31. I correspond. A conductive brush 31 that rotates together with the device housing 10 electrically contacts the fixed conductive member 30 on the support column 14 side to perform a dielectric action. Thus, even if the four device housings 10 are rotationally displaced to any position in all 360 ° azimuths, power is supplied to each of the device housings 10 without the power supply or the transmission / reception external cable 6 becoming entangled. Or energize.

As shown in the enlarged portion of FIG. 4, guide ribs 32 having a convex cross section are provided annularly at equal intervals in the vertical direction on the back surface of the device housing 10 and engage with the guide ribs 32. An annular groove 33 is formed along the outer periphery of the support column 14 for guiding. These guide ribs 32 and annular concave grooves 33
The guide structure guides the movement of the conductive brush 31 provided on each of the device housings 10. In addition, the conductive brush 31 on the device housing 10 side is supported by the support structure 14 by the guide structure.
This prevents a short circuit from occurring with the other conductive member 30 on the side.

Further, on the back surface of each equipment housing 10, as shown in FIG. 5, heat exhaust ducts 34 are formed alternately with the conductive brushes 31 provided corresponding to the upper and lower partitions.
The heat exhaust duct 34 generates heat from the electronic components 5 such as a printed circuit board mounted on each partition of the device housing 10.
Then, heat generated from the conductive brush 31 can be radiated.

As shown in FIG. 4, in order to radiate the heat generated by the electronic components 5 mounted on each stage of the equipment housing 10 to the outside of the apparatus, the upper electronic component 5 and the lower electronic component 5 are radiated. And a shielding plate 35 is provided between them. When the heat generated by the electronic component 5 is exhausted by the shielding plate 35, the portion of the support 14 corresponding to the exhaust heat duct 34 has only the bone frame over the entire circumference. Therefore, the heat exhausted without hindering the heat radiation to the outside of the device is transferred to the support 14 regardless of the rotational displacement position or the disposition position of the device housing 10.
Through the hollow interior 14a, and the upper open end 14b of the strut 14
The heat is dissipated using the exhaust port.

Further, the four device housings 10 are electrically connected to adjacent ones by electric wire cables 36 (see FIG. 7).

As described above, the device housing structure of the present embodiment does not need to consider a layout that makes it difficult to work in a work space or always faces the front of the apparatus, for example, a layout in a blind alley or the like. It is possible to effectively use limited installation space such as a radio station.

Further, regardless of the rotational displacement of the device housing 10, the external cable 6 and the inter-device cable 36 become entangled,
There is an advantage that the generated electric heat can be efficiently dissipated, and the equipment housings 10 of all the devices can be maintained and inspected in an operation state without system down.

Further, all the equipment casings 10 can be locked or unlocked at an arbitrary position by the operation of depressing the pedal of the operator, so that the worker himself does not move, and the equipment casings of the desired equipment to be inspected and maintained are not moved. The body 10 can be easily and freely moved. Thus, the work can be reduced without the danger of moving a heavy object as in the related art.

Furthermore, since the device housings 10 of the devices are adjacent to each other, the inter-device cable 36 can be minimized, the cable cost can be drastically reduced, and when used for a radio station communication device, the radio characteristics deteriorate. An excellent advantage of not being allowed is obtained.

[0035]

As described above, in the equipment housing structure of the present invention, a plurality of equipment housings can be changed to any position in all 360 ° azimuth directions, the minimum necessary space, and extremely It can be installed with almost no space required, and all equipment housings can be easily maintained and inspected from the front front side.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a device housing structure for a wireless station communication device according to an embodiment of the present invention.

FIG. 2 is an assembled perspective view of the embodiment.

FIG. 3 is a partially exploded perspective view of the embodiment.

FIG. 4 is a cross-sectional view of a main part taken along line AA of FIG. 2;

FIG. 5 is a perspective view of a single unit of the device housing according to the present embodiment as viewed from behind.

FIG. 6 is a plan view showing a mounting mode of a protective cover in the device housing structure of the present embodiment.

FIG. 7 is a cross-sectional plan view of the device housing structure of the present embodiment.

8A and 8B are perspective views showing a conventional device housing structure.

[Explanation of symbols]

 REFERENCE SIGNS LIST 5 mounted electronic component 6 external power cable for power supply and transmission / reception 10 device housing 11 housing support plate 11 a lock hole 12 turntable 13 housing rotation bearing ring 14 support 14 b heat radiating port 15 rotation lock mechanism 15 a locking claw 16 Lock operation pedal 18 Top plate 20 Protective cover 21 Transparent front cover 22 Decorative cover 30 Conductive member 31 Dielectric brush 32 Guide rib 33 Annular concave groove for rib guide 34 Heat exhaust duct 35 Shielding plate 36 Cable between devices

Claims (6)

(57) [Claims] To 1. A central, has an internal hollow fixed post launched vertically, a turntable provided with a rotatable housing carrier plates around this fixed post, said housing carrying plate Carried, the turntable
With the rear part facing the fixed support and the front part for inserting and removing the mounted parts facing outward.
A plurality of equipment casings radially arranged around the fixed support column, and upper and lower partitions of the equipment casing on each back surface of the equipment casing.
The electric heat generated in the device housing is formed in response to the
A device housing structure comprising: a heat exhaust duct that radiates heat through the inside of the fixed support . 2. A conductive member is provided in an annular shape along the outer periphery of the fixed support, and this conductive member is electrically connected to an external cable introduced into the fixed support, and a conductive member is provided at a position corresponding to the conductive member. 2. The device according to claim 1, wherein a dielectric brush is provided on a back portion of each of the plurality of device housings, and the device housing is electrically connected to the external cable via the dielectric brush. Device housing structure as described. 3. When each of the device housings has a structure in which the mounting components are mounted on each of a plurality of stages vertically and vertically divided along the fixed column, the mounting components of each of the stages are provided. The dielectric brush is provided on the back portion corresponding to
The device housing structure according to claim 2, wherein the conductive member is provided at a position corresponding to the dielectric brush on an outer periphery of the fixed support over the support height. 4. A heating generated in the equipment cabinet, the instrument chassis structure according to claim 1, characterized in that heat is radiated from the upper open end of the standing column. 5. A foot pedal operation on the turntable.
Direction to engage or disengage with the housing support plate
To lock the rotation of the housing supporting plate or
Provided rotation lock mechanism having a locking claw to be unlocked
The device housing structure according to any one of claims 1 to 4, wherein: 6. The device housing is vertically placed back to back.
It is noted that the four
The device housing structure according to claim 1 .