JPH06314891A - Filler panel with air barrier - Google Patents

Abstract

PURPOSE: To mount a barrier member and a filler panel for blind lid to a chassis easily and reliably in a rack for substrate. CONSTITUTION: To mount a filler panel 30 with air barrier to a chassis 10, the lower edge part of a barrier member 32 is retained by a guide rail 17 that is provided at an insertion position where a board BC for electrical circuit is not inserted yet and may be pushed into the deep part of the chassis 10. Thereby the filler panel 30 with air barrier can be fitted to the chassis 10 with the same feeling as to insert the board BC into the chassis 10. Also, since the filler panel 31 for blind lid and the barrier member 32 are constituted in one piece, the front opening can be blocked positively without worrying about whether the barrier member 32 has been fitted or not later.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board rack for accommodating a plurality of electric circuit boards (board computers, etc.) in an upright state, and in particular, cooling air is provided from below the chassis along each board. The present invention relates to a rack for substrates that is made to flow.

[0002]

2. Description of the Related Art A board rack as described above is composed of a box-shaped chassis having a front opening and an internal space having a width such that a plurality of boards for electric circuits can be inserted side by side in a standing state. By inserting into the chassis,
Each board can be connected to a connector or the like mounted inside the chassis. In order to enable parallel insertion in such an upright state, a plurality of guide rails for positioning the insertion position of each board in the internal space are provided in the upper and lower parts of the chassis near the front opening. Extend in parallel in the insertion direction. In addition,
These guide rails also guide the insertion of the board while holding the lower end of the board to be inserted at each insertion position, thereby facilitating the insertion of the board.

By the way, various electronic components are mounted on each substrate, and when these electronic components operate, they generate heat. For this reason, cooling air is sent from the lower side of the chassis into the chassis by an electric fan or the like.

The front end of each board (the rear end in the insertion direction)
After being inserted into the chassis, a filler panel (a substrate mounting filler panel) for closing a portion of the front opening of the chassis facing the insertion position where the substrate is inserted is attached. Further, a portion of the front opening facing the insertion position where the substrate has not been inserted is closed by attaching a blind lid filler panel to the chassis. Therefore, the cooling air flows into the chassis through the gap formed between the guide rails, flows upward along the surface of each substrate without escaping to the outside through the front opening, and is formed on the upper surface of the chassis. It is discharged to the outside through the created air vent.

Here, the existence of the electric circuit board in the chassis is a resistance to the flow of the cooling air. Therefore, if there is an insertion position where the substrate is not inserted, most of the cooling air tends to flow through this resistanceless insertion position. As a result, sufficient cooling air may not flow along the surface of each substrate, and the electronic components on each substrate may become overheated. Therefore, there is a barrier member for blocking the flow of air that tries to pass by closing the gap formed between the guide rail provided at the insertion position where the substrate is not inserted and the guide rail adjacent to the guide rail. May be mounted in chassis.

[0006]

However, there is a problem that it is troublesome to perform the work of attaching the barrier member separately from the work of attaching the filler panel for the blind lid before the work of attaching the blind lid filler panel. Further, for example, after closing the entire front opening, it is not possible to confirm whether or not the barrier member has been attached to all the insertion positions where the substrate has not been inserted. There is also a risk of operating electronic components.

The present invention has been made in view of the above problems, and provides a filler panel with an air barrier in which the barrier member and the blind lid filler panel can be easily and surely attached to the chassis. It is an object.

[0008]

In order to achieve the above-mentioned object, the filler panel with an air barrier of the present invention has a blind filler panel for covering a gap formed between two adjacent guide rails. The barrier member is integrally attached and configured. Then, while the lower end portion of the barrier member is held by the guide rail, the insertion guide of the barrier member to the insertion position in the chassis is performed.

[0009]

When such a filler panel with an air barrier is attached to the chassis, the lower end of the barrier member is held by the guide rail provided at the insertion position where the electric circuit board is not yet inserted and is pushed into the chassis. Just good. This gives you the same feel as inserting the board into the chassis,
You can easily attach this filler panel with air barrier to the chassis. Further, since the blind lid filler panel and the barrier member are integrally formed, the front opening of the chassis can be surely closed without worrying about whether or not the barrier member is attached later.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will now be described with reference to FIG.
Will be described with reference to. First, FIG. 1 shows a substrate rack 1 to which a filler panel with an air barrier according to the present invention is attached. The rack 1 includes a plurality of board computers (however, only one is shown in the drawing).
It is composed of a box-shaped chassis 10 having a front opening 11 and an internal space 12 having a width such that the BC can be inserted in parallel in a standing state. In addition, I is on the surface of each board computer BC.
A large number of electronic components such as C are attached (hereinafter, this surface is referred to as a component attachment side surface). Also, chassis 10
A motherboard 13 having a plurality of connectors 13a, 13a, ... Arranged in parallel in the width direction is attached to the back opening formed on the back surface of the board so as to close it. Further, the power supply unit 15 is inserted into the right end portion (front side in the drawing) of the internal space 12. The power supply unit 15 supplies necessary voltage and current to each connector 13a of the motherboard 13.

At the top and bottom of the chassis 10,
Each board computer B in the chassis 10
A plurality of guide rails 1 for positioning the insertion position of C
Are arranged in parallel so as to extend in the depth direction from the vicinity of the front opening 11. Here, the “insertion position” means, as indicated by I, II, III, ...
The inner space 12 of the chassis 10 is provided with one guide rail 17
The position of each narrow space when it is considered that the partition is divided into a plurality of narrow spaces having a width from the left side surface to the left side surface of the guide rail 17 adjacent thereto. That is, a pair of upper and lower guide rails 1 for each insertion position I, II, III, ...
7, 17 are provided, and each pair of guide rails 17,
17 is a board computer B inserted at each insertion position.
The board computer BC is inserted and guided while holding the upper and lower ends of C.

Further, below the chassis 10, two electric fans 18, 1 for sending cooling air into the internal space 12 through a gap formed between the lower guide rails 17, 17.
8 is attached.

In the board rack 1 assembled in this way, the insertion positions I, II, II in the chassis 10 are arranged.
When the board computers BC are inserted into I, ..., The connectors (not shown) attached to the front end portions of the boards of these board computers BC in the insertion direction are connected to the mother board 1.
It is inserted in each connector 13a on 3 and engages with this.
As a result, the inserted board computer BC is electrically connected to the power supply unit 15 and other board computers BC that are also inserted into the chassis 10 to form a computer unit as a whole. Depending on the function required of the computer unit, the insertion position I,
Among the II, III, ..., there are some in which the board computer BC is not inserted. Hereinafter, such an insertion position where the substrate is not inserted is referred to as an uninserted position.

Further, as shown in the figure, a strip-shaped filler panel (hereinafter referred to as a substrate mounting filler panel) 21 is formed at the front end (rear end in the insertion direction) of the board of the board computer BC. It is installed. Therefore, when the board computer BC is inserted into the insertion position, the portion of the front opening 11 facing the insertion position is closed by the board mounting filler panel 21 attached to the inserted board computer BC. Get off. On the other hand, the part of the front opening 11 facing the above-mentioned non-inserted position is the filler panel 3 with an air barrier according to the present invention.
It is closed by a strip-shaped filler panel 31 for a blind lid which constitutes 0.

Here, a filler panel 30 with an air barrier is provided.
The configuration will be described with reference to FIG. The filler panel 30 with an air barrier is composed of the above-mentioned blind lid filler panel 31 and a barrier member 32 integrally attached to the lower portion of the back surface of the blind lid filler panel 31. The barrier member 32 is a plastic longitudinal member having a U-shaped cross section with an opening facing downward, and a plate-shaped projecting portion 32a for screwing to the blind lid filler panel 31 at the front end thereof. 32a is formed. Further, a lower end portion (hereinafter, referred to as a right lower end portion) 32b of the right side surface of the barrier member 32 is bent outward rightward, and this portion has an L-shaped cross section.

When the filler panel 30 with the air barrier thus formed is attached to the chassis 10, first, as shown in FIG. For example,
It is held by the lower guide rail 17 provided at the insertion position III. Then, the lower left end portion 32c is slid on the guide rail 17 and pushed inward of the insertion position III. At this time, the lower right end 32b of the barrier member 32
Slides while making contact with the left side surface of the guide rail 17 (provided at the insertion position IV) adjacent to the guide rail 17 on the right side. Insertion position III
When the pushing in is completed, the gap (hereinafter, referred to as a non-inserted gap) S ′ between the guide rails 17 is covered with the barrier member 32 from above. When this pushing is completed, the insertion position III in the front opening 11 is
The blind lid filler panel 31 is located in the portion facing the front side, and the portion can be closed by screwing the filler panel 31 to the chassis 10. If it can be confirmed that the blind lid filler panel 31 is attached from the outside of the chassis 10, it can be seen that the non-insertion gap S is closed by the barrier member 32. Therefore, look inside the chassis 10 one by one. do not have to.

In this way, when the electric fans 18, 18 are operated in a state in which the entire front opening 11 is closed by the board mounting filler panel 21 and the blind lid filler panel 31, as shown in FIG. The cooling air A sent by 18 flows into the chassis 10 through gaps S, S, ... Except the non-inserted gap S'covered by the barrier member 32 among the gaps formed between the guide rails. The air A flowing into the chassis 10 flows upward along the component mounting side surface of each board computer BC without flowing out from the closed front opening 11. As a result, the electronic components of each board computer BC are cooled. Then, finally, the cooling air A is discharged to the outside from the upper surface opening of the chassis 10.

In the above embodiment, the barrier member 32 that completely blocks the non-insertion gap S'and shuts off the air flow is used. However, as shown in FIG. 4, the barrier member 132 that allows the air flow. May be used. On the left side surface of the barrier member 132, the fins 132a, 13 inclined upward to the left are provided.
A plurality of slits 132b, 132b, ... With 2a are formed. If this barrier member 132 is used, the cooling air A flowing inside the barrier member 132
Flows out from each slit 132a (flows into the chassis 10) while being directed toward the component mounting side surface of the adjacent board computer BC on the left side, and cools the electronic components of the board computer BC.

[0019]

As described above, the filler panel with an air barrier of the present invention is constructed by integrally mounting the barrier member on the filler panel for the blind lid, and further, the barrier member is guided by the guide rails and the chassis. It is designed to be inserted inside. Therefore, this filler panel with an air barrier can be easily attached to the chassis with the same feeling as inserting the electric circuit board into the chassis. If this filler panel is attached, it is possible to know that the barrier member is always attached in the chassis without checking each time. Therefore, it is possible to prevent forgetting to attach the barrier member.

[Brief description of drawings]

FIG. 1 is a perspective view of a board rack to which a filler panel with an air barrier according to the present invention is attached.

FIG. 2 is an explanatory diagram of the filler panel with an air barrier.

FIG. 3 is a partial cross-sectional view of a board rack to which the filler panel with an air barrier is attached.

FIG. 4 is a partial cross-sectional view of a board rack showing a second embodiment of the filler panel with an air barrier.

[Explanation of symbols]

 1 Board Rack 10 Chassis 13 Motherboard 15 Power Supply Unit 17 Guide Rail 18 Electric Fan 21 Board Mounting Filler Panel 30 Air Barrier Filler Panel 31 Blind Cover Filler Panel 32, 132 Barrier Member

Claims (1)

[Claims] 1. A box-shaped chassis having a front opening and an internal space into which a plurality of electric circuit boards can be inserted in parallel with each other in an upright state, and a box-shaped chassis arranged in parallel at a lower part of the chassis, and each of the boxes in the internal space. A plurality of guide rails for positioning the insertion position of the electric circuit board and for guiding the insertion of the electric circuit board while holding the lower end portion of the electric circuit board inserted at each of the insertion positions. In the front opening, a portion facing the insertion position where the electric circuit board is inserted is closed by a board mounting filler panel attached to the inserted electric circuit board. The portion of the electric circuit board facing the insertion position where the electric circuit board has not been inserted is closed by a filler panel for blind lid. A substrate rack in which cooling air is made to flow from the lower side to the upper side of the chassis through a gap formed between the guide rails in a state where the entire front opening is closed, A barrier member for integrally covering a gap formed between two adjacent guide rails is integrally attached to the blind lid filler panel, and the lower end portion of the barrier member is held by the guide rail and the barrier member is provided. A filler panel with an air barrier, characterized in that the insertion guide to the insertion position is performed.