WO2017143881A1

WO2017143881A1 - Communication device and board guiding structure thereof

Info

Publication number: WO2017143881A1
Application number: PCT/CN2017/070904
Authority: WO
Inventors: 秦振; 王承忠; 郑旭锋
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-02-24
Filing date: 2017-01-11
Publication date: 2017-08-31
Also published as: CN107124671A; CN107124671B

Abstract

Disclosed is a communication device, comprising a housing and an inter-board connection structure, wherein the inter-board connection structure forms a communication system having a switching function; the inter-board connection structure comprises service boards, switching boards, and a backboard; in the inter-board connection structure, the backboard is parallel with the ventilation direction inside the communication device; the service boards are vertically connected to the backboard; the switching boards are connected to the backboard by means of multiple connectors. Also disclosed is a board guiding structure of the communication device.

Description

Guide structure of single board in communication equipment and communication equipment

Technical field

The present invention relates to a communication device, and more particularly to a communication device with an exchange communication system comprising an inter-board connection structure and a guiding structure of the single board therein.

Background technique

Conventional communication equipment, simple, small, without center switching; complex, large, with central switching. The communication device is generally a front and rear air duct, that is, the front panel enters the air, passes through the back panel, and the rear fan draws air. At the same time, there is a large number of backplane interconnection signals between the service board and the switch board.

The most common backplane switching topology is shown in Figure 1, which is a double star structure. The essence is that there are multiple service boards and two switch boards in the same system. All service boards are connected to two switch boards at the same time. The backplane interconnect signal line needs to be redundantly designed to ensure that the traffic of the service board can be exchanged through the switch board and avoid single point of failure. In a dual-star system, at least one link failure and one board failure can be allowed at the same time without affecting the normal operation of the network system. The reliability of the system is high and the transmission efficiency is high because In the dual-star network, each lower link is still directly connected to the upper switch. Therefore, similar to the single-star network structure, the dual-star network system is still a layered network structure with high transmission efficiency.

Corresponding to the implementation of the communication device, the hardware corresponding to the switch of FIG. 1 is a switching board, and the hardware corresponding to the service node is a service board, and the connection between the service board and the switching board is implemented on the backplane.

Common inter-board connection structures in communication equipment are as follows:

The first one is used for a communication system without switching, and the service board and the backboard are horizontally placed.

A front view of an exemplary connection structure of the present embodiment is FIG. 2A, and a top view is FIG. 2B, which are schematic views. As shown in the figure, the service board 1 and the back board 3 are horizontally placed in the chassis 4, and the fan 6 is disposed at the rear of the backboard 4. The service board 1 is pushed in from the operation surface of the chassis 4 (ie, the front or the front of the chassis 4), and is connected to the backplane 3 through the connector 5, such as a plug connection.

The board can be placed in a small number of service boards without a switch board. Therefore, this method is only applicable to small devices with simple functions, such as 1U servers, which implement systems that do not need to be exchanged.

The second type is used for the communication system with the switch. The backplane is perpendicular to the ventilation direction of the device. The service boards and switch boards are connected to the backplane.

A front view of an exemplary connection structure of the present mode is FIG. 3A, and a top view is FIG. 3B. As shown, the back panel 3 is perpendicular to the direction of ventilation inside the device (i.e., from the operating surface of the chassis 4 to the back), and the fan 6 is disposed at the rear of the back panel 3. The service board 1 and the switch board 2 are pushed in from the front of the chassis 4, and are connected to the backplane 3 through the connector 5, such as a plug-in connection. After the connection, the service board 1 and the switch board 2 are perpendicular to the backplane 3. Each of the service boards 1 and the back board 3 is connected by a pair of connectors 5, and the switch board 2 and the back board 3 are connected by four pairs of connectors 5. A connector 5 is disposed behind the board surface of the service board 1 , and four connectors 5 are disposed behind the board surface of the switch board 2 , and a plurality of connectors are disposed at corresponding positions on the board surface of the back board 3 5. A single point of contact between the service board 1 and the backplane 3 is connected through a connector 5, and multiple points of contact between the switch board 2 and the back board 3 are connected through four connectors 5. The number of the above-mentioned connectors is only exemplary. The service board 1 and the backplane 3 can also be connected through a plurality of connectors 5, and the number of connectors 5 connected to the backplane 3 and the service board are exchanged. The number of 1 is generally greater than the number of connectors connected to the service board 1 and the backplane 3, but the two are not excluded.

In the figure, for convenience of presentation, the structures for connecting the service boards 1, the exchange boards 2, and the back board 3 are all represented as connectors 5. The structure of the connector 5 on the service board 1, the switch board 2, and the back board 3 can be divided into a male and a female. For example, the service board 1 and the connector 5 on the switch board 2 can be female. The connector 5 on the back panel 3 can be male or vice versa. The connectors on the service board 1 and the switch board 2 can also be different, such as using different models.

In this way, a large number of boards can be placed, and a switch board can be placed. Multiple connectors can be placed in the switch slot, thus forming a complex and large-scale device, such as a 4U communication platform, a server, a storage device, and the like. Because it is simple in structure and supports multi-board strip exchange, it is widely used.

But this approach also has obvious and insurmountable shortcomings - ventilation is not good. In the chassis of the communication equipment room, the ventilation is forward and backward to avoid heat superimposition (because multiple frames are stacked one on top of the other. If it is up and down, there is a chassis air intake is before The hot air from a frame. The heat will be superimposed. The backplane is parallel to the front of the chassis, which is perpendicular to the inside of the device. Ventilation direction. In this way, the backboard blocks the wind and can only be ventilated by hollowing out the back panel. The backplane has traces, strength requirements, and installation requirements, so the knockout rate is difficult to make high. Causes ventilation difficulties. With the increasing power density, this problem is becoming more and more serious and difficult to solve. Increasing the exhaust power of the fan will increase the energy consumption and fail to meet the demand for green energy saving. Moreover, if the fan power is increased, it will cause noise and cannot meet the safety requirements (guarantee maintenance and contact personnel safety and comfort).

The third type is used for the communication system with the switch. The backplane is parallel to the ventilation direction of the device. The service boards and switch boards are connected to the backplane.

A front view of an exemplary connection structure of the present mode is FIG. 4A, and a top view is FIG. 4B. as the picture shows. The backboard 3 is horizontally disposed, that is, parallel to the ventilation direction inside the apparatus, and the fan 6 is disposed at the rear of the backboard 3. The service board 1 and the switch board 2 are pushed in from the front of the chassis 4, and are connected to the backplane 3 through the connector 5, such as a plug-in connection. After the connection, the service board 1 and the switch board 2 are perpendicular to the backplane 3. Each service board 1 has a single point of contact between the switch board 2 and the back board 3 and is connected by a pair of connectors 5. A connector 5 is disposed behind the board side of the service board 1 and the switch board 2, and a plurality of connectors 5 are disposed at corresponding positions on the front side of the back board 3.

In this way, you can place more boards and exchange boards. The ventilation problem existing in the second mode is solved because the back plate is parallel to the ventilation direction inside the device and does not block the air passage.

However, this method also has major drawbacks, and it cannot support the exchange of boards with multiple connectors (such as sockets). Because the exchange board and the backplane are only in contact at one point. According to the double-star structure, assuming one connector per board, if all signals are connected to two switch boards, the switch board requires eight connectors (compared to the same type of connector). Generally, half of the connectors of the board are connected to the switch board, and the switch board requires four connectors. Therefore, even if the connector is placed on the front and back, only half of the switching capacity can be achieved. Moreover, if the connector is high and the connector is placed on the reverse side, the device height of the exchange board will be severely limited.

Therefore, this method is greatly limited in function and performance. Only in a system with very low switching bandwidth requirements, such as only exchanging some control information, a system with no data exchange is adopted.

Summary of the invention

In order to solve the existing technical problems, an embodiment of the present invention provides a communication device and communication. The guiding structure of the single board in the device.

The technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides a communication device, including a chassis and an inter-board connection structure, where the inter-board connection structure comprises a communication system with a switch, and the inter-board connection structure includes a service board, a switch board, and In the inter-board connection structure, the backplane is parallel to the ventilation direction of the communication device, the service board is vertically connected to the backplane, and the switchboard is connected to the backplane through multiple connectors. The backboard is connected.

The embodiment of the present invention further provides a communication device, including a chassis and an inter-board connection structure, wherein the inter-board connection structure comprises a communication system with a switch, and the inter-board connection structure includes a service board and a switch board. And a backplane, the inter-board connection structure, including a first backplane parallel to a ventilation direction inside the communication device and a second backplane perpendicular to a ventilation direction inside the communication device, the service board The first backplane and the second backplane are vertically connected to each other through a connector, and the switchboard is vertically connected to the first backplane and the second backplane through a connector.

The inter-board connection structure of the above communication device is used to facilitate ventilation and support multi-connector connection of the exchange board.

The embodiment of the present invention further provides a guiding structure of a single board in a communication device, wherein the guiding structure is disposed on a frame, wherein the guiding structure comprises an upper rail and/or a lower rail, and the upper rail and/or The lower rail is a stepped rail and the front is higher than the rear. This special guiding structure can be used for guiding when a single board in which a plurality of connectors are arranged in the longitudinal direction is pushed in.

DRAWINGS

1 is a schematic diagram of a principle in which a communication system adopts double star exchange;

2A and 2B are respectively a front view and a top view of a conventional inter-board connection structure in a horizontal placement mode for a communication system without switching;

3A and 3B are respectively a front view and a top view of a conventional inter-board connection structure for a communication system with a switch, the backplane being perpendicular to the ventilation direction;

4A and 4B are respectively a front view and a top view of a conventional inter-board connection structure for a communication system with a switch, the backplane being parallel to the ventilation direction;

5A, FIG. 5B, and FIG. 5C are respectively a front view, a top view, and a perspective view of an inter-board connection structure for a communication system with a switch, with the backplane parallel to the ventilation direction, according to an embodiment of the present invention;

6A-6D are schematic diagrams showing a running track of a process of connecting a switch board and a backboard according to an embodiment of the present invention;

7A, FIG. 7B, and FIG. 7C are respectively a front view, a side view, and a top view of an inter-board connection structure of a communication system for band exchange according to Embodiment 2 of the present invention, wherein the backplane is parallel to the ventilation direction;

8 is a front view and a plan view of an inter-board connection structure in which a multi-backplane is parallel to a ventilation air direction according to a third embodiment of the present invention;

9A and FIG. 9B are respectively a front view and a side view of a communication system for a belt exchange according to a fifth embodiment of the present invention, wherein a part of the backboard is parallel to the ventilation direction, and a part of the backboard is perpendicular to the ventilation direction;

10A and FIG. 10B are schematic diagrams showing the connection of the service boards and the switch boards through the guide rails and the backplanes in the fourth embodiment of the present invention.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

Embodiment 1

The embodiment provides a communication device, including a casing and an inter-board connection structure. The inter-board connection structure constitutes a communication system with switching. In the connection structure (the connected structure), the back plate is parallel to the inside of the device. In the ventilation direction, the service board and the switch board are connected to the backplane vertically, that is, the board faces are perpendicular to each other. The connection between the service board and the backplane is similar to the third method in the background technology. The switch board is connected to the back board through multiple connectors. The casing in the text refers to the outer casing of the communication device, and the shape, structure and size of the embodiment of the invention are not limited.

In the embodiment of the present invention, for the convenience of the description, when describing the connection relationship between the exchange board and the backboard, if there is no description to the contrary, one of the exchange boards is taken as an example to describe the back and the back. The connection between the boards. The same is true for the description of the connection relationship between the service board and the backplane.

The front view of the connection structure between the communication devices of the present embodiment is FIG. 5A, the top view is FIG. 5B, and the perspective view is FIG. 5C, which are schematic views. The drawings of the embodiments of the present invention are schematic diagrams, mainly for indicating the connection relationship between boards, and are not drawn strictly in accordance with the requirements of engineering design drawings. For example, in Fig. 5A, it is clear that the connector 5 is enlarged, and the actual size of a connector such as a socket is usually about 1/15 of a single board. The other figures are the same. In order to facilitate the connection structure between the display panels, the casing 4 is omitted in Fig. 5C.

As shown in the figure, the back plate is parallel to the ventilation direction inside the device, the embodiment is horizontally disposed, and the fan 6 is disposed at the rear of the back plate 3. Both the service board 1 and the switch board 2 are pushed in from the front of the casing 4, and are vertically connected to the backboard 3 through the connector 5, such as a plug connection. As an example, there are four service boards 1 on the left and right sides, and two switch boards 2 are located in the center. Each service board 1 and the back board 3 are connected by a pair of connectors 5, and the plugging and unplugging method is Regular.

The switchboard 2 of the present embodiment extends in the longitudinal direction (parallel to the airflow direction of the device), that is, the switchboard, in the longitudinal direction of the service board 1 The length in the longitudinal direction is longer than that of the service board. The lower part of the side of the board of the exchange board 2 is longitudinally arranged with a plurality of connectors such as sockets, at least some of which are disposed on the extended portion. In the figure, four connectors are taken as an example, and they may be two or more than three other numbers. Correspondingly, a plurality of connectors are arranged in the longitudinal direction of the board 2, and after the switch board 2 is inserted into the position, the plurality of connectors 5 and the back board 3 on the board 2 are exchanged at corresponding positions. A plurality of connectors 5 are connected together. In the figure, the connector 5 on the switch board 2 is disposed on the lower part of the board side of the switch board 2, and the connector 5 on the back board 3 is disposed on the upper board of the back board 3, and the switch board 2 and the back board are exchanged. 3 is connected to the upper panel of the backplane 3, but in other embodiments, the connector 5 on the switchboard 2 may also be disposed on the upper portion of the panel of the switchboard 2, and the connector on the backplane 3 5 is disposed on the lower surface of the backboard 3, and the exchange board 2 and the backboard 3 are connected to the lower panel of the backboard 3. Of course, the connector 5 can also be disposed on both sides of the board of the exchange board 2, and the device height of the exchange board will increase.

6A-6D illustrate the motion trajectory of the swapping board insertion and removal process in this embodiment. In this embodiment, the four connectors of the exchange board 2 are arranged in the longitudinal direction. If directly inserted and removed in the longitudinal direction, the front connector blocks the push-in route of the exchange board 2. Therefore, during the installation process of the exchange board 2 in this embodiment, The user can hold the panel 21 at the front of the exchange board 2 to operate, moving it longitudinally to the vicinity of the oblique upper side of the backboard 2, as shown in FIG. 6A; then moving down, as shown in FIG. 6B; The four connectors 5 on the switch 4 correspond one-to-one with the corresponding connectors 5 on the backplane 3, as shown in Fig. 6C; and then inserted into full coupling, as shown in Fig. 6D. The structure after the connection can also be seen in Figure 5C.

The switch board slot in this embodiment has multiple connectors, which can realize the requirement of large-capacity switching. Because the back plate is placed parallel to the ventilation direction inside the device, it does not block the wind, so at the same time it achieves the effect of facilitating ventilation and heat dissipation. On the structure of the board, the service boards do not need to be changed. The exchange boards are slightly more complicated, but the relative functions and performance improvements are negligible.

Embodiment 2

The present embodiment provides a communication device, including a casing and an inter-board connection structure. The inter-board connection structure constitutes a communication system with a switch. In the connection structure, the backplane is parallel to the ventilation direction inside the device, and the service board is The switch board is connected to the backplane through a plurality of connectors and is connected to the backplane. The connector connected to the switchboard is disposed on one side of the board, and the connector connected to the service board is disposed on the other side.

The front view of the inter-board connection structure of the communication device of this embodiment is FIG. 7A, the side view is FIG. 7B, and the top view is FIG. 7C, which are schematic views. The casing 4 is omitted in Fig. 5B.

As shown in the figure, the back plate is parallel to the ventilation direction inside the device, and the embodiment is horizontally disposed, and the fan 6 is disposed at the rear of the back plate 3. The service board 1 is pushed in from the front of the casing 4, and is vertically connected to the backboard 3 through a connector 5, such as a plug connection. The exchange board 2 is pushed in from the front of the casing 4, connected to the backboard 3 through a plurality of connectors 5 and parallel to the backboard 3, as may be a plug connection. As an example, there are eight service boards 1 in the figure, which are connected to the upper side of the backplane 3, and each service board 1 and the back board 3 are connected by a pair of connectors 5, and the plugging and unplugging method is conventional. of.

In order to realize the multi-connector connection between the switch board 2 and the back board 3, the switch board 2 of the embodiment is the same as the back board 3, and is disposed horizontally at the rear of one side of the board (front and rear of the board) A plurality of connectors are arranged in the lateral direction (perpendicular to the ventilation direction) in the lateral direction (perpendicular to the ventilation direction), and the four connectors are exemplified in the figure, and may be two or more than three other numbers. Correspondingly, a plurality of connectors are arranged along the lateral direction at corresponding positions on the front side of the side plate of the back plate 2, and will be delivered. After the replacement board 2 is inserted into position, the plurality of connectors 5 on the exchange board 2 are connected to the plurality of connectors 5 at corresponding positions on the back board 3. In the figure, the connector 5 on the switch board 2 is disposed on the upper board surface of the switch board 2, and the connector 5 on the back board 3 is disposed on the lower board side of the back board 3, but in other embodiments, the exchange order The connector 5 on the board 2 can also be disposed on the lower board surface of the switch board 2, and the connector 5 on the back board 3 is disposed on the upper board side of the back board 3. At this time, the service board 1 should be connected. It is obliquely below the back plate 3.

In this embodiment, the inter-board connection structure, the switchboard with the multi-connector and the backplane are horizontally arranged, and only one service board of the connector is vertically connected with the backplane, which is advantageous for ventilation and heat dissipation, and at the same time, the switchboard slot is exchanged. There are multiple connectors in place to enable high-capacity switching. Compared with the first embodiment, the structure is relatively simple to implement. Since the connector is placed in the front and back on the backplane, the position is easy to interfere, and the size of the connector is limited, so the connector is smaller, the corresponding number of signals is small, and the supported switching capacity is small, which is suitable for relatively small size. system.

Embodiment 3

The embodiment provides a communication device, including a casing and an inter-board connection structure. The inter-board connection structure comprises a communication system with an exchange, the connection structure includes a plurality of back plates, and the plurality of back plates are parallel to The internal ventilation direction of the device, the service board and the switch board are connected to the backplane. The switchboard is connected to at least two of the backplanes through the connector. The switchboard and the backplane are also integrated. Connector connection.

The front view of the connection structure between the boards of the communication device of this embodiment is shown in Fig. 8, and the casing and the fan are omitted.

As shown in the figure, the plurality of back plates 3 are parallel to the ventilation direction inside the device. In this embodiment, the plurality of back plates 3 are vertically disposed (if there is no comparison object, the vertical or horizontal setting fingers are vertically or horizontally arranged with respect to the ground) . Horizontal metal strips can be placed in the frame with positioning holes, and each small back plate has positioning pins to accurately position the respective back plates. The fan is disposed at the rear of the backboard 3. The service board 1 is pushed in from the front of the casing, and is vertically connected to the plurality of backboards 3 through one or more connectors 5, and may be a plug connection. The exchange board 2 is pushed in from the front of the casing 4, and is vertically connected to the plurality of backboards 3 through a plurality of connectors 5, and may be a plug connection. The figure shows four service boards, two switch boards, and three back boards. The service board 1 is horizontally set. Each service board 1 can be combined with one. Or a plurality of backboards 3 are connected by a connector 5, and the plugging and unplugging method is conventional.

In order to realize the multi-connector connection between the switching board 2 and the backboard 3, the embodiment adopts a plurality of backplanes, the switching board 2 is horizontally disposed, and a plurality of connectors are arranged at the rear of one side panel. For example, three connectors are used, and they may be two or more than three other numbers. Correspondingly, a plurality of connectors are disposed on the front side of each side of the backplane 2, and after the switchboard 2 is inserted into the position, the plurality of connectors 5 on the single board 2 are exchanged, and each connector 5 is A connector 5 at a corresponding position on a backing plate 3 is joined together. In the figure, the switch board 2 and each back board 3 are connected by a connector 5, but the present invention does not have to be the same, and a part of the back board (two or more) may be connected through the connector 5. In the figure, the connectors 5 on the exchange board 2 and the back board 3 are each provided with one side of the board surface, but in other embodiments, they may be disposed on both sides of the board surface.

In the third mode, only one switch board can be connected to only one backplane, so only one connector (or two connections) can be placed. Therefore, the function and performance are limited. In this embodiment, the multi-backplane solution is adopted, and the backplane is split into a plurality of small backplanes. An exchange board can be connected to multiple backplanes, and has multiple contact points with the backplane. Multiple connectors can be provided. The number of signals and bandwidth will also increase exponentially.

In this embodiment, the number of the backplanes can also be flexibly configured according to the types and quantities of various requirements, and the upgrade is convenient. All backplanes can be divided into groups, with different groups for transmitting different types of signals in the communication system. For example, the left-to-back backplanes in FIG. 8 are named as the backplane one, the backboard two and the backplane three. Data channel and high-speed signal, divided into the backplane, SAS (Serial Attached SCSI, is a computer hub interface, its function is mainly used as the data transmission of peripheral parts, is currently the mainstream protocol standard of storage function) signal, backplane Second, PCIE (Peripheral Component Interconnect Express), the standard interface of the processor local bus, has a x4 bandwidth, and the backplane takes the PCIE signal x8 bandwidth. In the case that it is not required for both service planes, it can be deleted. For example, as long as the SAS storage system, only the backplane 1 is installed, and the backplane 2 and the backplane 3 are not installed; as long as the PCIE system is installed, only the backplane 2 and the backplane 3 are installed; and the PCIE bandwidth is not required to be x8. When you only install the backplane two.

This embodiment also achieves the requirement of facilitating ventilation and heat dissipation, and having multiple connectors in the switching board slot for large capacity switching. Compared with the first embodiment and the second embodiment, the structure is relatively simple to implement, and a large switching capacity can be realized. In this mode, the connector of the service board may also need multiple. To dock multiple split backplanes. The switch board can use a large connector, while the service board uses a small connector. This embodiment is applicable to large communication equipment systems, such as big data exchange equipment, which require large switching capacity and require more connectors to take more signals.

It should be noted that the structure of the embodiment can be changed into a structure in which a plurality of backplanes are horizontally placed, and a service board and a switchboard are vertically placed, that is, a structure in which the structure in FIG. 8 is rotated 90 degrees to the left or right. It is easy to understand that this structure is equivalent to the structure in Fig. 8, and can be flexibly selected according to the size of the casing. Similarly, in the first embodiment and the second embodiment, the structure in the corresponding drawing can be rotated to obtain the same structure in which the relative connection relationship between the plates is the same, but the horizontal or vertical direction can also have a corresponding effect.

In the above three embodiments, the backplane is parallel to the ventilation direction inside the device, which is favorable for ventilation and heat dissipation, and supports large-capacity exchange. It solves the problem that the current mainstream communication device has a heat dissipation limitation, and the number of exchanged single-board connectors is insufficient and the bandwidth is limited.

The inter-board connection structure of the first embodiment is suitable for most systems. For a system smaller than the size, the inter-board connection structure of the second embodiment can be used. This method is simple to implement and low in cost. For larger systems, big data switching equipment, such as 9U, 12U height cabinets. The multiple backplane solution of the third embodiment can be employed.

Embodiment 4

In the inter-board connection structure of the embodiment, according to the signal classification and the splitting of the board, a plurality of back boards are adopted. Different from the third embodiment, the plurality of back boards include the backs vertically and horizontally in the ventilation direction. board.

The communication device of the present embodiment includes a casing and an inter-board connection structure, and the inter-board connection structure constitutes a communication system with a switch. As shown in FIG. 9A and FIG. 9B, the inter-board connection structure includes a service board 1 The switchboard 2 and the backplane, wherein the backplane includes a first backplane 31 parallel to a ventilation direction inside the communication device and a second backplane 32 perpendicular to a ventilation direction inside the communication device, The service board 1 is vertically connected to the first back board 31 and the second back board 32 through a connector, and the switch board 2 passes through the connector and the first back board 31 and the second back board. 32 are connected vertically.

In this embodiment, the ventilation direction inside the communication device is a direction from the operation surface of the casing to the back surface, and the first back plate 31 and the second back plate 32 are vertically disposed at the rear of the communication device with respect to the ground. . The fan can be placed behind the back panel. In this embodiment, the inter-board connection structure includes two switch boards 2, and each switch board 2 is connected to the first back board 31 and the second back board 32 through three or more connectors. The first backplane 31 and the second backplane 32 can be used to transmit different types of signals used in the communication system. For example, the first backplane can take more signals, such as a high speed signal data channel. The second backplane can take fewer signals, such as a low speed control signal. The service board can be provided with two sockets, one connected to the first backboard 31 and the other connected to the second backplane 32. In the figure, the first back plate 31 is disposed on the left side, and the second back plate 32 is disposed on the right side, but is not limited thereto.

In this embodiment, all the connectors 5 on the same service board 1 and the switch board 2 may be disposed on one line. The connector on the first backplane 31 may be a bent male head, and the second backplane 32 may be used. The upper connector can be a bent male connector, and the connectors of the first backboard and the second backplane can be aligned on the contact surface.

The communication device of each of the above embodiments may have other inter-board connection structures in addition to the inter-board connection structure described, that is, a plurality of communication systems with switching may be implemented in one communication device, and the inter-board connection structure may be the same. Or different, for example, two or three inter-board connection structures of the above three embodiments may exist in one casing. In addition, although the above embodiment is exemplified by a communication system of a double-star structure, the embodiment of the present invention can also be applied to a communication system of a single-star structure (only one switching board).

In the first embodiment, a plurality of connectors (omitted in the figure) at the lower portion of the board of the exchange board 2 are arranged in the longitudinal direction, and a plurality of connectors at corresponding positions on the board surface of the board are also arranged in the longitudinal direction. Therefore, in the installation process of the service board, it is necessary to vertically and then move down, and the backplane connector is aligned and reconnected. If a guiding structure is used in the pushing process, it is necessary to adopt a guiding structure different from that used in ordinary single boards.

Embodiment 5

The embodiment provides a guiding structure for a single board in a communication device. As shown in FIG. 10B, the guiding structure is disposed on a frame 8. The guiding structure includes a lower rail 71 and an upper rail 72, and the lower rail The upper rail 72 and the upper rail 72 are stepped rails and the front portion is higher than the rear portion. In a specific structure, in the embodiment, the lower rail 71 is a linear guide with a "|" shape or an inverted "T" slot, and has a transition portion at the front portion thereof; the upper rail 72 has a "T" The linear guide of the groove has a transition at the rear. Only one of the upper rail and the lower rail can be provided. The guiding structure of this embodiment can be used for guiding the pushing of the exchange boards in which the plurality of connectors are arranged in the longitudinal direction in the first embodiment. Of course, it can also be used for guiding other boards of similar structure.

For the sake of comparison, the service board 1 is connected to the backplane through a common guiding structure. As shown in the figure, the user can hold the front panel 11 of the service board 1 to operate the service board. The upper and lower sides are respectively pushed along the trajectory defined by the lower rail 71 and the upper rail 72 provided on the frame 8. The lower rail 71 and the upper rail 72 are linear guide rails.

FIG. 10B is a schematic view of the exchange board 2 connected to the backboard through the guiding structure of the embodiment. As shown, the guiding structure includes a frame 8 and a lower rail 71 and an upper rail 72 disposed on the frame 8. The lower rail 71 and the upper rail 72 are stepped rails, and the front portion is higher than the rear portion. The lower rail 71 has a "T"-shaped groove, and the front portion has a transition portion. The upper rail 72 has a transition portion at the rear portion of the "|" shape or the inverted "T"-shaped groove to achieve high and low variations. In the figure, the transition portion has a slope shape, but the present invention is not limited thereto, and the transition portion may also be a curved surface having a curvature, or a vertical surface or the like. When connected, a hanging member 9 is connected above the rear portion of the board of the exchange board 2, and the hanging member 9 has a "T" shape, and the upper portion is wider, and can be embedded in the "T" groove of the upper rail 72, along the upper portion. The longitudinal grooves of the guide rail 72 slide. The lower end of the plate surface of the exchange veneer 2 can be inserted into the groove of the lower rail 71 and slid. In order to cooperate with the installation, the lower side of the exchange veneer 2 also exhibits a front high and a low shape, and also has a transition portion. In the present application, the front and rear portions of the guide rail and the exchange board are identical to the front and rear of the cabinet.

During the installation, the front end of the service board 1 is hung on the upper rail through the hanging member 8. The user can hold the front panel 21 of the switch board 2 and set the upper and lower sides of the service board 1 along the rack 8. When the trajectory defined by the lower rail 71 and the upper rail 72 is pushed in, and the transition portion of the lower rail 71 and the upper rail 72 is reached, the service board 1 is moved obliquely downward (or downward) so that the service board 1 is The connectors are in one-to-one correspondence with the connectors on the backplane, and then pushed forward to couple the connectors to complete the connection between the service board and the backplane. The guiding structure can ensure the stability of the board during push-in and pull-out.

Although the present embodiment provides the above-mentioned guiding structure, the present invention is not limited thereto, and for example, only the upper rail or the upper rail may be included therein, and other redirecting and pushing structures for realizing inter-board interleaving are also can use.

The serial numbers of the embodiments of the present invention are merely for the description, and do not represent the advantages and disadvantages of the embodiments. The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the description of the present invention and the drawings are directly or indirectly applied to other related technical fields. The same is included in the scope of patent protection of the present invention.

Industrial applicability

In the communication device provided by the embodiment of the present invention, in the inter-board connection structure, the backplane is parallel to the ventilation direction of the communication device, and the service board is vertically connected to the backplane, and the switchboard passes through multiple a connector connected to the backboard, or an inter-board connection structure including a first backplane parallel to a ventilation direction inside the communication device and a second backplane perpendicular to a ventilation direction inside the communication device The service board is vertically connected to the first back board and the second back board respectively through a connector, and the switch board is vertically connected to the first back board and the second back board through a connector, respectively. This inter-board connection structure facilitates ventilation and supports multi-connector connections for switching boards. At the same time, the guiding structure is arranged on the frame, wherein the guiding structure comprises an upper rail and/or a lower rail, the upper rail and/or the lower rail being a stepped rail and the front portion being higher than the rear portion. This special guiding structure can be used for guiding when a single board in which a plurality of connectors are arranged in the longitudinal direction is pushed in.

Claims

A communication device includes a casing and an inter-board connection structure, and the inter-board connection structure comprises a communication system with a switch, and the inter-board connection structure comprises a service board, a switchboard and a backboard, and the board In the inter-connecting structure, the backplane is parallel to the ventilation direction inside the communication device, the service board is vertically connected to the backplane, and the switchboard is connected to the backplane through a plurality of connectors.
The communication device of claim 1 wherein:

The switchboard is connected to the backplane and is perpendicular to the backplane. The plurality of connectors on the switchboard are longitudinally arranged on the board, and the backplane is connected to the switchboard. The plurality of connectors are arranged longitudinally at respective locations on the panel surface; the longitudinal direction being parallel to the direction of ventilation.
The communication device of claim 2 wherein:

The switchboard extends in a longitudinal direction relative to the service board, and at least a part of the plurality of connectors on the switchboard are disposed on the extended portion.
The communication device of claim 2 wherein:

The communication device further includes a frame, the frame is provided with a guiding structure for exchanging the push-in of the single board, the guiding structure comprises an upper rail and/or a lower rail, and the upper rail and/or the lower rail is a ladder The guide rail has a front portion higher than the rear portion; the lower side of the exchange veneer is stepped and the front portion is higher than the rear portion.
The communication device of claim 1 wherein:

The switchboard is connected to the backplane and is parallel to the backplane. The plurality of connectors on the switchboard are arranged in a horizontal direction on the board, and the backplane is connected to the switchboard. The plurality of connectors are arranged in a lateral direction at respective positions on the board surface; the lateral direction is perpendicular to the ventilation direction.
The communication device of claim 5 wherein:

A connector that is connected to the switchboard is disposed on one side of the board, and a connector that is connected to the service board is disposed on the other side.
The communication device of claim 1 wherein:

The inter-board connection structure includes a plurality of parallel backplanes, and the switchboards are connected through a connector At least two of the backplanes are respectively connected, and are connected perpendicular to the backplane.
The communication device of claim 7 wherein:

The plurality of parallel backplanes are divided into multiple groups, and different groups are used to transmit different types of signals used in the communication system; at least one of the switching boards and service boards and each group of back boards Backplane connection.
A communication device according to any of claims 1-8, wherein:

The ventilation direction inside the communication device is a direction from the operation surface of the casing to the back surface, and the back plate is vertically or horizontally disposed at a rear portion of the communication device with respect to the ground.
A communication device according to any of claims 1-8, wherein:

The inter-board connection structure includes two switchboards, and each switchboard is connected to the backplane through more than three connectors.
A communication device includes a casing and an inter-board connection structure, and the inter-board connection structure comprises a communication system with a switch, and the inter-board connection structure includes a service board, a switch board and a back board, and the back The board includes a first backplane parallel to a ventilation direction inside the communication device and a second backplane perpendicular to a ventilation direction inside the communication device, and the service board is respectively connected to the first backplane through a connector The first backplane is vertically connected to the second backplane, and the switchboard is vertically connected to the first backplane and the second backplane respectively through a connector.
The communication device of claim 11 wherein:

The ventilation direction inside the communication device is a direction from the operation surface of the casing to the back surface, and the first back plate and the second back plate are vertically disposed at a rear portion of the communication device with respect to the ground.
A communication device according to claim 11 or 12, wherein:

The inter-board connection structure includes two switchboards, and each switchboard is connected to the first backplane and the second backplane through at least three connectors.
A communication device according to claim 11 or 12, wherein:

The first backplane and the second backplane are used to transmit different types of signals used in the communication system.
A guiding structure of a single board in a communication device, the guiding structure being disposed on a frame The guiding structure comprises an upper rail and/or a lower rail, the upper rail and/or the lower rail being stepped rails and the front portion being higher than the rear portion.
The guiding structure of claim 15 wherein:

The upper rail is a linear guide with a "T" shaped slot, and the rear portion of the upper rail has a transition portion;

The lower rail is a linear guide with a "|" shape or an inverted "T" shaped groove, and the front portion of the lower rail has a transition portion.