JP2592705Y2 - Electronic component mounting 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 mounting structure of electronic parts in an electronic device having a convection induction plate for natural air cooling.

[0002]

2. Description of the Related Art FIG. 5 shows a conventional communication device.

In a housing 1 of the communication device, two subrack units (electronic device units) 2A, 2A,
2B is implemented.

[0004] These subrack units 2A, 2B
Are each configured by accommodating a plurality of boards 4 in a rack 3, and each board 4 is inserted into the rack 3 by using a guide rail 6 provided in the rack 3 as a guide, and a connector of the motherboard 7 is provided. 8 is connected. Also, the motherboard 7 of the subrack unit 2A provided on the upper part
An optical connector 10 is provided, and an optical multiplexer / demultiplexer (a device for splitting an optical signal into two types of optical signals or a device for multiplexing two types of optical signals) 12 has a mounting bracket 13 attached thereto. The external optical cord 14 is connected to the optical multiplexer / demultiplexer 12 via the optical adapter 15 and the optical cord 16, and the optical multiplexer / demultiplexer 12 is connected to the optical connector 10 via the optical cord 17. It is connected.

On the other hand, the above subrack units 2A, 2B
The substrate 4 is cooled by natural air cooling, and convection guide plates 18A and 18B are provided below the subrack units 2A and 2B, respectively. The outside air introduced into the housing 1 from the ventilation hole 1a provided at the upper part of the front surface of the housing 1 is guided into the subrack unit 2A by the convection guide plate 18A, and the outside air that has cooled the substrate 4 is It is discharged from the ventilation hole 1b provided in the upper part of. Also, housing 1
The outside air introduced into the housing 1 through the ventilation holes 1c provided at the lower part of the front of the sub-rack unit 2
The outside air guided into B and cooling the substrate 4 is discharged from a ventilation hole 1d provided in the back of the housing 1.

According to the above-mentioned conventional electronic equipment, it is necessary to mount the optical multiplexer / demultiplexer 12 on the back side of the subrack unit 2A. Therefore, a space for mounting the optical multiplexer / demultiplexer 12 is secured in the housing 1. Therefore, there is a problem that the depth of the housing 1 must be increased.

In this case, it is conceivable to house the optical multiplexer / demultiplexer 12 in the subrack unit 2A. However, a rack 3 of this type of subrack unit is standardized in terms of cost. Optical multiplexer / demultiplexer 12
Is difficult to store in the rack 3.

[0008]

SUMMARY OF THE INVENTION As described above, in the above electronic equipment, the size of the housing is increased in order to secure a mounting space for electronic components that assist the electronic equipment unit mounted in the housing. There is a point.

SUMMARY OF THE INVENTION The present invention has been made to solve such a conventional drawback, and an electronic component which can be mounted on an electronic device as an auxiliary of the electronic device unit without increasing the size of the housing of the electronic device. It is intended to provide a mounting structure.

[0010]

According to the present invention, there is provided a mounting structure of an electronic component, wherein an electronic device unit is mounted in a housing of an electronic device and a convection induction plate for guiding outside air introduced into the housing to the electronic device unit. In the mounting structure of the electronic device in the electronic device provided below the electronic device unit, an electronic component that assists the electronic device unit is mounted on the convection guide plate, and inside the housing is
A chassis including a guide portion on which the convection guide plate is placed is provided.
Provided, the convection guide plate was placed on the guide portion
In the state, detachable independently of the electronic device unit
It is characterized by being fixed.

[0011]

According to the present invention, since the auxiliary components of the electronic device unit are mounted on the convection guide plate, it is not necessary to secure a separate space for mounting the auxiliary components in the housing. Also, convection invitation
With the guide plate placed on the guide,
Convection induction
The plate can be easily removed from the housing,
The work of attachment and removal is easy.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to FIGS.

FIG. 1 is a cross-sectional view taken along line AA of FIG. 2, FIG. 2 is a front cross-sectional view of an electronic device, FIG. 3 is a front view of a convection guide plate mounted in a housing, and FIG. It is a B sectional view.

[0014] The housing of the communication device (electronic device) according to the present invention.
As shown in FIGS. 1 and 2, two subrack units (electronic device units) 22A and 22B are mounted in the vertical direction.

These subrack units 22A and 22B
Is a standardized unit, and is configured by storing a plurality of boards 24 in a rack 23.
24 is inserted into the rack 23 with a guide rail 26 provided in the rack 23 as a guide, and connected to a connector 28 of a motherboard 27 provided on the back of the rack 23. Also,
The substrates 24 of the subrack units 22A and 22B are configured to be cooled by natural air cooling. A convection guide plate 30A is provided below the subrack unit 22A, and a convection guide plate 30B is provided below the subrack unit 22B. Is provided. Ventilation holes provided in the upper part on the front side of the housing 21
The outside air introduced into the casing 21 from the convection guide plate 30A
Thus, the outside air that has been guided into the subrack unit 22A and cooled the substrate 24 is discharged from the ventilation holes 21b provided in the upper part of the housing 21. The outside air introduced into the housing 21 from the ventilation holes 21c provided in the lower part on the front side of the housing 21
It is led into the subrack unit 22B by 30B and the substrate 24
The outside air that has cooled the
Emitted from d.

On the other hand, an optical connector 32 is provided on a predetermined substrate 24 of the subrack unit 22A.
At A, an optical multiplexer / demultiplexer 33 and an optical adapter 34 are attached. Then, as shown in FIG.
The optical cord 37 introduced into the housing 21 from 21e is an optical adapter
34, is connected to an optical multiplexer / demultiplexer 33 via an optical cord 38, and the optical multiplexer / demultiplexer 33 is connected to a connector 32 of the substrate 24 via an optical cord 39.

FIGS. 3 and 4 are views showing a structure for mounting the convection guide plate 30A.

The convection guide plate 30A is fixed to the guide portion 41a by screws 42 while being mounted on the guide portions 41a and 41b provided on the chassis 41. The chassis 41 is fixed to the housing 21 with screws 45, so that the chassis 41 is attached to the housing 21. The convection guide plate 30A is provided with a cable clamp 47, and the extra length of the optical cord is wound around the cable clamp 47. The convection induction plate 30B is also a convection induction plate 30A.
It has the same configuration as. However, the optical multiplexer / demultiplexer 33 and the like are not attached.

As described above, in this embodiment, the subrack unit
Since an optical multiplexer / demultiplexer 33 which is an auxiliary component of the 22A and a cable clamp 47 for winding the extra length of the optical cord are provided on the convection guide plate 30A, a space for securing these auxiliary components and the like is provided. It is not necessary to separately provide the inside of the body 21, and the housing 21 can be downsized. Further, since the convection guide plates 30A and 30B can be easily attached to and detached from the housing 21, auxiliary parts such as the optical multiplexer / demultiplexer 33 can be easily attached to and removed from the convection guide plates 30A and 30B as necessary. Can be done.

[0020]

As described above, according to the present invention, since the auxiliary components of the electronic device unit are mounted on the convection guide plate, there is no need to secure a separate space for mounting the auxiliary components in the housing. The size can be reduced. Also,
With the flow guide plate placed on the guide,
Is fixed detachably independently of the
The guide plate can be easily removed from the housing, and auxiliary parts
The work of attaching and detaching is easy.

[Brief description of the drawings]

FIG. 1 is a sectional view taken along line AA of FIG.

FIG. 2 is a front cross-sectional view of the electronic device.

FIG. 3 is a detailed view of a convection guide plate part of FIG. 2;

FIG. 4 is a sectional view taken along line BB of FIG. 3;

FIG. 5 is a cross-sectional view of a conventional electronic device.

[Explanation of symbols]

21 Housing 22A Electronic equipment unit 30A Convection induction plate 33 Electronic components

Claims (1)

(57) [Scope of request for utility model registration] An electronic device in which an electronic device unit is mounted in a housing of the electronic device and a convection guide plate for guiding outside air introduced into the housing to the electronic device unit is provided below the electronic device unit. In the electronic component mounting structure, an electronic component that assists the electronic device unit is mounted on the convection guide plate, and a guide portion for mounting the convection guide plate is provided inside the housing.
And a convection guide plate provided with the guide.
The electronic device unit is placed on the
An electronic component mounting structure, which is vertically and detachably fixed .