CN112505846A - Communication device with double-layer rear light-emitting port based on orthogonal machine frame - Google Patents

Abstract

The invention discloses a communication device with a double-layer rear light-emitting port based on an orthogonal machine frame, which comprises the machine frame, a plurality of rear plug-in cards and a plurality of heat dissipation units, wherein each rear plug-in card comprises a chassis and a front panel, and the rear plug-in cards and the heat dissipation units are vertically inserted at the rear part of the machine frame at intervals; and the rear plug-in card front panel is provided with a plurality of optical ports and ventilation openings. The invention improves and innovates the heat dissipation structure of the rear card inserting machine frame, greatly improves the heat dissipation performance of the interface on the premise of not changing the original heat dissipation air duct, avoids the change of the whole machine structure, and has wide application range; through setting up double-deck optical port on the back plug-in card, the interface density of extra increase equipment satisfies the big flow requirement of user data, and good cooling system can guarantee that the heat of production can be discharged rapidly when the consumption rises simultaneously.

Description

Communication device with double-layer rear light-emitting port based on orthogonal machine frame

Technical Field

The present invention relates to a communication device with an orthogonal architecture, and more particularly, to a communication device with a dual-layer rear light-emitting port based on an orthogonal machine frame.

Background

With the rapid development of electronic communication technology, the backbone network traffic is rapidly increasing at a rate of 50% to 80% each year. In order to meet the network market traffic handling requirements, large operators and data centers place higher demands on the interface density of communication equipment. In the prior art, a rack-mounted communication device generally adopts an orthogonal architecture to insert a corresponding plug-in card, that is, the rack-mounted communication device generally comprises a backplane, a main control card, a front plug-in card, a rear plug-in card and a heat dissipation unit. The back board is used as the interconnection line of other board cards, the main control card provides an interface for a user to manage the whole equipment and the system, and user data is transferred in from the interface of the front plug-in card, is forwarded through the rear plug-in card and finally is transferred out from the corresponding interface of the front plug-in card. If the user data is identified to be required to be processed, the rear plug-in card can firstly forward the user data to the front plug-in processing board card for processing, then the processed data is sent to an interface of the target front plug-in card to be output, and the heat dissipation unit dissipates heat for all the board cards at the same time.

User data is accessed and transferred out through the interface on the front card, and when the flow is further increased, the communication equipment needs to provide more interfaces to meet the requirement. However, the higher interface density means that the power consumption of the whole machine is inevitably increased, and at the same time, the excessive interface density can shield the heat dissipation air duct, which provides a challenge for the heat dissipation of the whole machine, so how to balance the interface density and the effective heat dissipation becomes a problem to be solved in the field.

Disclosure of Invention

The purpose of the invention is as follows: the invention aims to provide a double-layer rear light-emitting port communication device with high interface density and high heat dissipation.

The technical scheme is as follows: the communication device with the double-layer rear light-emitting port comprises a machine frame, a plurality of rear plug-in cards and a plurality of heat dissipation units, wherein each rear plug-in card comprises a chassis and a front panel, and the rear plug-in cards and the heat dissipation units are vertically inserted into the rear part of the machine frame at intervals; the front panel is provided with a plurality of optical ports and ventilation openings.

Further, the optical ports include a dual layer optical port and a single layer optical port.

Furthermore, the ventilation openings are arranged on two sides of the optical port, and the ventilation openings are arranged in the vacant space on the front panel and close to the double-layer optical port as much as possible.

Further, the shape of the vent includes one or more of a circle, an ellipse, and a regular polygon.

Furthermore, the number of the rear plug-in cards is 4, and the number of the heat dissipation units corresponds to that of the rear plug-in cards.

Further, the front surface of the double-layer optical port is provided with heat dissipation holes.

When the whole machine works, cooling medium enters from the air inlet at the front end of the case, passes through the front card, the back plate and the rear card and is discharged through the heat dissipation unit, so that the whole machine equipment forming the orthogonal architecture is effectively dissipated.

Because the double-deck light port of back plug-in card and the radiating unit are the parallel arrangement mode, the air inlet of front end can not walk double-deck light kneck, the heat dissipation of the double-deck kneck of back plug-in card then utilizes the wind pressure difference at interface both ends, and the wind pressure of interface panel department is greater than the wind pressure of interface rear end to there is partial wind to get into from back plug-in card interface panel, and the radiating unit of rethread discharges, thereby plays the radiating effect of giving double-deck interface.

Has the advantages that: compared with the prior art, the invention has the following remarkable advantages:

(1) by improving the heat dissipation structure of the rear card inserting machine frame, the heat dissipation performance of the double-layer interface is greatly improved on the premise of not changing the original heat dissipation air duct, the change of the whole machine structure is avoided, and the application range is wide;

(2) through setting up double-deck optical port on the back plug-in card, the interface density of extra increase equipment satisfies the big flow requirement of user data, and good cooling system can guarantee that the heat of production can be discharged rapidly when the consumption rises simultaneously.

Drawings

Fig. 1 is a schematic structural diagram of a communication device with a double-layer rear light-emitting port according to the present invention;

FIG. 2 is a schematic diagram of a rear card according to the present invention;

FIG. 3 is a schematic structural diagram of a dual-layer optical port according to the present invention;

FIG. 4 is an overall block diagram of a rear card according to an embodiment of the present invention;

FIG. 5 is a block diagram of a hexagonal vent according to an embodiment of the present invention;

fig. 6 is a top view of a cooling medium flow for a dual row rear egress interface on a rear card according to an embodiment of the present invention.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings.

The inventor researches and discovers that in most of the communication equipment with the orthogonal architecture, the traffic is basically transferred in/out from the interface on the front card. The number of slots in the front of the communication equipment is fixed, and the number of front plugboard cards which can be placed has an upper limit, so that the interface density also has an upper limit, and the interface density cannot be realized if the interface density is further expanded. Some communication devices utilize a rear card behind the chassis, which exposes interfaces thereon, thereby increasing interface density.

Although some communication devices have interfaces on their back cards, more or less some problems exist. If three layers of interfaces are arranged on part of the rear plug-in cards, but in order to solve the problems of interface heat dissipation and whole machine heat dissipation, only a heat dissipation fan can be arranged in the rear plug-in cards, but the design can bring the reliability problem, because the fan has larger vibration in a high-speed running working state, the reliability of the connection part of the single-board connector can be reduced in a long-term running environment; part of the rear plug-in cards are double-layer, but due to structural limitation, the number of the rear plug-in cards is only 2; and a single-layer/double-layer hybrid structure is arranged on part of the rear plug-in cards, but in order to meet the heat dissipation requirement, only independent heat dissipation air channels of the rear plug-in cards can be established, namely a Z-shaped heat dissipation mode is adopted, so that the overall height of the communication equipment is increased. Therefore, there is a need for an orthogonal structure communication device that can increase the density of device interfaces while ensuring good heat dissipation.

The invention provides a double-layer rear light-emitting port communication device with high interface density and high heat dissipation performance, which comprises a machine frame 3, and rear plug-in cards 1 and heat dissipation units 2 which are vertically inserted on the machine frame 3 and are arranged at intervals, wherein the quantity of the rear plug-in cards 1 corresponds to that of the heat dissipation units 2 one by one, so that the optical ports on each rear plug-in card 1 are ensured to be heat-dissipated by a fan frame, the rear plug-in cards and the heat dissipation units are sequentially arranged at intervals and are tightly attached, and the whole occupied area of the double-layer optical ports 4 is within the range of the heat dissipation units 2. As shown in fig. 1, the present embodiment employs four sets of rear card and heat dissipation units.

As shown in fig. 2 and 4, the rear card 1 includes a chassis 6, a front panel 9 is vertically connected to a front end of the chassis 6, a double-layer optical port 4 is disposed on the front panel 9, a vent 5 is disposed between adjacent optical ports 4, a plurality of connectors 7 are disposed on a rear side of the chassis 6 and are in butt joint with the front card, a main chip 8 is disposed in a middle of the chassis 6, and preferably, a vent 10 is disposed on a surface of the double-layer optical port 4, so as to further improve heat dissipation performance, as shown in fig. 3.

As a further optimization, in order to ensure that the intake air volume and the heat dissipation effect are optimal, the shape of the vent 5 is one or a combination of several of a circle, an ellipse and a regular polygon, but is not limited to the above shape, and a regular hexagon is particularly preferable, as shown in fig. 5.

When the equipment works, cooling medium enters from the air inlet at the front end of the case, finally passes through the heat dissipation unit 2, and is discharged by the heat dissipation unit 2. In this process, since the double-layered optical port 4 is closely adjacent to the heat dissipating unit 2 and is smaller in depth than the heat dissipating unit 2, the cooling medium entering from the front end cannot flow through the double-layered optical port 4.

Because the rear plug-in card 1 and the heat dissipation unit 2 are arranged at intervals in sequence, when the cooling medium is discharged from the heat dissipation unit 2, the wind speed is high, high pressure is formed at the front end area a of the double-layer optical port 4 in fig. 6, and low pressure is formed at the rear end area b of the double-layer optical port 4, so that part of the cooling medium flows through the double-layer optical port 4 according to the heat dissipation channel 5 in fig. 6, enters the heat dissipation unit 2, and is discharged from the heat dissipation unit 2, thereby playing a role in dissipating heat for the double-layer optical port 4. The heat dissipation channel 5 enters through a ventilation hole 5 formed on the front panel 9 and a heat dissipation ventilation hole 10 arranged on the double-layer optical port.

It should be noted that, if the dual-layer interface mode adopts a two-layer interface pressing mode, or only a single-layer interface, the heat dissipation air duct 5 enters the dual-layer optical port 4 through the ventilation hole 5 formed in the front panel 9 to dissipate heat.

Claims (7)

1. A communication device with a double-layer rear light-emitting port based on an orthogonal machine frame comprises a machine frame (3), a plurality of rear plug-in cards (1) and a plurality of heat dissipation units (2), wherein each rear plug-in card (1) comprises a chassis (6) and a front panel (9), and is characterized in that the rear plug-in cards (1) and the heat dissipation units (2) are vertically inserted into the rear part of the machine frame (3) at intervals; the front panel (9) is provided with a plurality of optical ports (4) and ventilation openings (5).

2. The orthogonal frame-based communication device with dual-layer rear optical outlet port according to claim 1, wherein the optical port (4) comprises a dual-layer optical port and a single-layer optical port.

3. The orthogonal frame-based communication device with double-decked rear light-exiting port according to claim 1, wherein the ventilation openings (5) are disposed on both sides of the light port (4).

4. The orthogonal frame-based communication device with double-decked rear light outlet port according to claim 1 or 3, wherein the shape of the vent (5) comprises one or more of a circle, an ellipse, and a regular polygon.

5. The orthogonal-frame-based communication device with double-layer rear light-emitting port according to claim 1, wherein the number of the rear card (1) and the heat dissipation unit (2) is 4.

6. The orthogonal frame-based communication device with double-layer rear light-exiting port according to claim 1, wherein the front surface of the light port (4) is provided with a heat dissipation hole (10).

7. The orthogonal frame-based communication device with double-layer rear light-exiting port according to claim 1, wherein the heat-dissipating unit (2) comprises a fan frame and a heat-dissipating fan.

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