CN107124671B

CN107124671B - Communication equipment

Info

Publication number: CN107124671B
Application number: CN201610101001.4A
Authority: CN
Inventors: 秦振; 王承忠; 郑旭锋
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-02-24
Filing date: 2016-02-24
Publication date: 2022-01-25
Anticipated expiration: 2036-02-24
Also published as: CN107124671A; WO2017143881A1

Abstract

A communication device comprises a shell and an inter-board connection structure, wherein the inter-board connection structure forms a communication system with exchange, the inter-board connection structure comprises a service single board, an exchange single board and a back board, in the inter-board connection structure, the back board is parallel to the ventilation direction inside the communication device, the service single board is vertically connected with the back board, and the exchange single board is connected with the back board through a plurality of connectors. By adopting the inter-board connection structure of the communication equipment, ventilation is facilitated, and multi-connector connection of the exchange single board can be supported.

Description

Communication equipment

Technical Field

The present invention relates to a communication apparatus, and more particularly, to a communication apparatus with a switched communication system including an inter-board connection structure.

Background

Conventional communication equipment, simple and small, without central switching; complex and large-scale, with central switching function. The communication equipment is generally a front air duct and a rear air duct, namely the front panel enters air and penetrates through the back plate, the rear fan exhausts the air, and meanwhile a large number of back plate interconnection signals are arranged between the business single plate and the exchange single plate.

The most common backplane switching topology is shown in fig. 1, which is a dual-star architecture. The essence is that in the same system, there are multiple service boards and 2 switch boards, and all the service boards are connected to 2 switch boards at the same time. In order to ensure that the traffic of the service single board can realize non-blocking switching through the switching single board and avoid single-point failure of the system, the backplane interconnection signal line needs to be designed redundantly. In the double star system, at least one link fault and one single board fault can be allowed to occur simultaneously, the normal operation of the network system is not influenced, the reliability of the system is high, and the transmission efficiency is also high.

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

The common connection structure between boards in communication equipment includes the following:

the first one is used in communication system without exchange, and the service single board and the back board are both horizontally placed.

Fig. 3A is a front view and fig. 3B is a plan view of an exemplary connection structure of the present embodiment, which are both schematic views. As shown in the figure, the service single board 1 and the backplane 3 are both horizontally placed in the chassis 4, and the fan 6 is disposed at the rear of the backplane 4. The service board 1 is pushed from the operation surface of the chassis 4 (i.e. the front surface or front surface of the chassis 4), and is connected to the backplane 3 through the connector 5, such as a plug-in connection.

Because the width direction of the case can only contain few service single boards without the exchange single board. Therefore, the method is only suitable for small devices with simple functions, such as 1U servers, and the system without exchange is realized.

And the second, for use in a communication system with switching. The back plate is perpendicular to the ventilation direction in the equipment, and the service single plate and the exchange single plate are both vertically connected with the back plate.

Fig. 3A is a front view and fig. 3B is a plan view of an exemplary connection structure of the present embodiment. As shown, the back panel 3 is perpendicular to the ventilation direction inside the apparatus (i.e., the direction from the operation surface to the back surface of the cabinet 4), and the blower 6 is provided at the rear of the back panel 3. The service single board 1 and the switch single board 2 are pushed in from the front of the chassis 4, and are connected with the backplane 3 through the connector 5, such as plug-in connection. After connection, the service board 1 and the switch board 2 are both perpendicular to the backplane 3. Each service single board 1 is connected to the backplane 3 through a pair of connectors 5, and the switch single board 2 is connected to the backplane 3 through four pairs of connectors 5. A connector 5 is arranged behind the board surface on one side of the service single board 1, four connectors 5 are arranged behind the board surface on one side of the exchange single board 2, and a plurality of connectors 5 are arranged at corresponding positions of the board surface of the back board 3. The single-point contact between the service single board 1 and the backplane 3 is connected through one connector 5, and the multi-point contact between the switch single board 2 and the backplane 3 is connected through four connectors 5. The number of the above connectors is only exemplary, the service board 1 and the backplane 3 may also be connected by a plurality of, for example, two connectors 5, the number of the connectors 5 for the switch board 2 and the backplane 3 to connect is related to the number of the service boards 1, and is generally greater than the number of the connectors for the service boards 1 and the backplane 3, but the case of the two being equal is not excluded.

In the figure, for convenience of illustration, the structures for connection on the service board 1, the switch board 2 and the backplane 3 are all represented as connectors 5. However, the structures of the service board 1, the switch board 2 and the connector 5 on the backplane 3 may be divided into a male connector and a female connector, for example, the connector 5 on the service board 1 and the switch board 2 may be the female connector, and the connector 5 on the backplane 3 may be the male connector, or vice versa. The connectors on the service board 1 and the switch board 2 may also be different, such as different models.

This way, more single boards can be placed, and multiple connectors can be placed in the exchange slot, so that complex and large-scale equipment, such as 4U communication platform, server, storage device, etc., can be formed. The structure is simple, and the exchange of multiple single plate strips is supported, so the method is widely adopted.

However, this method also has the obvious and insurmountable disadvantage of disadvantageous ventilation. In the case of communication machine room, the ventilation is carried out before and after to avoid heat superposition (because a plurality of machine frames are stacked up and down in one machine frame, if the wind direction is up and down, the inlet wind of one machine frame is the hot wind from the previous machine frame, and the heat is superposed). The back panel is parallel to the front of the chassis, i.e. perpendicular to the ventilation direction inside the device. The back plate thus blocks the wind and can only be ventilated by hollowing out the back plate. The back plate has wiring, strength requirement and installation requirement, so the hollowing rate is difficult to be increased. Resulting in difficulty in ventilation. With the current power density becoming larger and larger, this problem becomes more and more prominent and difficult to solve. The energy consumption can be increased by increasing the air draft power of the fan, and the requirement of green energy conservation cannot be met; moreover, the fan power is increased, which causes high noise and can not meet the safety requirements (ensuring the safety and comfort of maintenance and contact personnel).

And thirdly, for use in a communication system with switching. The back plate is parallel to the ventilation direction in the equipment, and the service single plate and the exchange single plate are both vertically connected with the back plate.

Fig. 4A is a front view and fig. 4B is a plan view of an exemplary connection structure of the present embodiment. As shown in the figure. The back plate 3 is arranged horizontally, i.e. parallel to the ventilation direction inside the device, and the fan 6 is arranged at the rear of the back plate 3. The service single board 1 and the switch single board 2 are pushed in from the front of the chassis 4, and are connected with the backplane 3 through the connector 5, such as plug-in connection. After connection, the service board 1 and the switch board 2 are both perpendicular to the backplane 3. Each service single board 1, the switch single board 2 and the backplane 3 are in single-point contact and are connected through a pair of connectors 5. A connector 5 is arranged behind the board surfaces of one sides of the service single board 1 and the exchange single board 2, and a plurality of connectors 5 are arranged at corresponding positions of the front side of the board surface of the back board 3.

This way, more single boards can be placed with the exchange single board. The problem of the ventilation that the second mode exists is solved, because the backplate is on a parallel with the inside ventilation direction of equipment, does not keep off the wind channel.

However, this approach also has the significant disadvantage of not supporting the exchange of a single strip with multiple connectors (e.g., receptacles). Since the switch board and backplane are in contact at only one point. Whereas according to the dual star architecture, assuming one connector per board, if all signals are connected to 2 switch boards, the switch boards need 8 connectors (for comparison with the same type of connector). Generally, for a single board connector, half of signals go to the switch board, and the switch board needs 4 connectors. Therefore, even if the connectors are placed on the front and back sides, only half of the exchange capacity can be achieved. Furthermore, the connectors are tall and the height of the device on the exchange board is severely limited by the placement of the connectors on the opposite side.

This approach is very limited in functionality and performance, and is only used in very few systems with very low requirements for switching bandwidth, such as systems with only some control information, and no data switching.

Disclosure of Invention

In view of the above, the present invention provides the following technical solutions.

A kind of communication equipment, including chassis and a inter-board connection structure, the said inter-board connection structure forms a communication system with exchange, the said inter-board connection structure includes business single-board, exchange single-board and backplate, characterized by that: in the inter-board connection structure, the backplane is parallel to the ventilation direction inside the communication device, the service single board is vertically connected with the backplane, and the exchange single board is connected with the backplane through a plurality of connectors.

A kind of communication equipment, including chassis and a inter-board connection structure, the said inter-board connection structure forms a communication system with exchange, the said inter-board connection structure includes business single-board, exchange single-board and backplate, characterized by that: the inter-board connection structure comprises a first back board parallel to the ventilation direction inside the communication equipment and a second back board perpendicular to the ventilation direction inside the communication equipment, the service single board is respectively and vertically connected with the first back board and the second back board through connectors, and the exchange single board is respectively and vertically connected with the first back board and the second back board through connectors.

By adopting the inter-board connection structure of the communication equipment, ventilation is facilitated, and multi-connector connection of the exchange single board can be supported.

The invention also provides a guide structure of the single plate in the communication equipment, which is arranged on the rack, wherein the guide structure comprises an upper guide rail and/or a lower guide rail, the upper guide rail and/or the lower guide rail is a stepped guide rail, and the front part of the upper guide rail and/or the lower guide rail is higher than the rear part of the upper guide rail and/or the lower guide rail. This special guide structure can be used for guiding a single board having a plurality of connectors arranged in the longitudinal direction when it is pushed in.

Drawings

FIG. 1 is a schematic diagram of a communication system employing two-star switching;

fig. 2A and 2B are a front view and a top view, respectively, of a prior art inter-board connection structure for a communication system without a switch in a horizontal placement mode;

fig. 3A and 3B are a front view and a top view, respectively, of a conventional inter-board connection structure in which a back plate is perpendicular to a ventilation direction for a communication system with exchange;

fig. 4A and 4B are a front view and a top view, respectively, of a conventional inter-board connection structure in which a backplane is parallel to a ventilation direction for a communication system with a band switch;

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

fig. 6A to fig. 6D are schematic diagrams illustrating a running track of a process of connecting a switch board and a backplane according to an embodiment of the present invention;

FIGS. 7A, 7B and 7C are front, side and top views, respectively, of an inter-board connection structure with a backplane parallel to the direction of ventilation air for a communication system with switching according to an embodiment of the present invention;

FIG. 8 is a front view and a top view of an inter-board connection structure with multiple backplanes parallel to the direction of the ventilation air for a three-purpose communications system of an embodiment of the present invention with switching;

fig. 9A and 9B are front and side views of an inter-board connection structure in which a part of a backplane is parallel to a direction of ventilation wind and a part of the backplane is perpendicular to the direction of the ventilation wind, according to an embodiment of the present invention;

fig. 10A and fig. 10B are schematic diagrams illustrating that a four-service board and a switch board are connected to a backplane through a guide rail according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.

Example one

This embodiment provides a communication device, including casing and inter-plate connection structure, inter-plate connection structure constitutes the communication system who takes the exchange, and in this connection structure (structure after connecting), the backplate is on a parallel with the inside ventilation direction of equipment, and business veneer, exchange veneer are all connected with the backplate is perpendicular promptly the face mutually perpendicular, and the connected mode between business veneer and the backplate is similar with the third mode of background art part. The exchange single board is connected with the back board through a plurality of connectors. The housing in this context refers to the housing of the communication device, the present invention is not limited in its shape, structure and size,

in this application, for convenience of description, when describing a connection relationship between a switch board and a backplane, if there is no description on the contrary, one of the switch boards is taken as an example to describe the connection relationship between the switch board and the backplane. The same is true for the description of the connection relationship between the service single board and the backplane.

Fig. 5A is a front view, fig. 5B is a top view, and fig. 5C is a perspective view of the connection structure between the communication device boards of this embodiment. The drawings of the application are schematic diagrams, mainly used for showing the connection relation between plates and not drawn strictly according to the requirements of engineering design drawings. For example, in fig. 5A, the connector 5 is enlarged for clarity, and the size of an actual connector, such as a receptacle, is typically about 1/15 for a single board. As are the other figures. The cabinet 4 is omitted in fig. 5C for convenience of displaying the inter-board connection structure.

As shown in the figure. The back panel is parallel to the ventilation direction inside the device, which in this embodiment is arranged horizontally, and the fan 6 is arranged at the rear of the back panel 3. The service board 1 and the switch board 2 are both pushed in from the front of the housing 4 and are connected to the backplane 3 vertically through the connector 5, for example, they may be plug-in connections. As an example, there are 4 service boards 1 on the left and right in the figure, 2 switch boards 2 in the middle, and each service board 1 is connected to the backplane 3 through a pair of connectors 5, and the plugging and unplugging manner is conventional.

In order to realize the multi-connector connection between the switch board 2 and the backplane 3, the switch board 2 of this embodiment extends in a longitudinal direction (parallel to the ventilation direction inside the device) relative to the service board 1, that is, the length of the switch board in the longitudinal direction is longer than that of the service board, and a plurality of connectors, such as sockets, are arranged in the longitudinal direction at the lower part of one side board surface of the switch board 2, wherein at least part of the connectors are arranged on the extended part. In the figure, 4 connectors are taken as an example, and the number of the connectors may be 2 or 3 or more. Correspondingly, a plurality of connectors are also arranged on corresponding positions of the surface of the back plate 3 along the longitudinal direction, and after the single exchange plate 2 is inserted in place, the plurality of connectors 5 on the single exchange plate 2 are connected with the plurality of connectors 5 on the corresponding positions of the back plate 3. In the figure, the connector 5 on the exchange board 2 is arranged at the lower part of the board surface of one side of the exchange board 2, the connector 5 on the backboard 3 is arranged at the upper board surface of the backboard 3, and the exchange board 2 and the backboard 3 are connected at the upper board surface of the backboard 3, but in other embodiments, the connector 5 on the exchange board 2 may be arranged at the upper part of the board surface of one side of the exchange board 2, the connector 5 on the backboard 3 is arranged at the lower board surface of the backboard 3, and the exchange board 2 and the backboard 3 are connected at the lower board surface of the backboard 3. Of course, the connectors 5 may be disposed on the two side boards of the swap board 2, and the device height of the swap board may increase.

Fig. 6A to 6D illustrate movement traces of the swap single board plugging process in this embodiment. In this embodiment, the 4 connectors of the switch board 2 are arranged in the longitudinal direction, and if the connectors are directly inserted and pulled in the longitudinal direction, the front connector blocks the pushing route of the switch board 2. Therefore, during the installation of the switch board 2 in this embodiment, the user can hold the front panel 21 of the switch board 2 to move it longitudinally to the vicinity of the upper oblique side of the back panel 3, as shown in fig. 6A; then move down as shown in FIG. 6B; after moving down to the right, 4 connectors 5 on the switch 4 correspond to the corresponding connectors 5 on the backplane 3 one by one, as shown in fig. 6C; and then reinserted into full coupling as shown in fig. 6D. The connected structure can also be seen in fig. 5C.

The slot of the exchange board of this embodiment has a plurality of connectors, so that the requirement of large capacity exchange can be met. Because the backplate is placed parallel to the inside ventilation direction of equipment, does not keep out the wind, so reached simultaneously and done benefit to ventilation cooling's effect. In the structure of the single board, the service single board does not need to be changed, the exchange single board is slightly complex, but the improvement of the relative function and performance can be ignored.

Example two

This embodiment provides a communication device, including casing and inter-plate connection structure, inter-plate connection structure constitutes the communication system who takes the exchange, and in this connection structure, the backplate is on a parallel with the inside ventilation direction of equipment, and the business veneer is connected with the backplate perpendicularly, and the exchange veneer is on a parallel with the backplate after being connected and being connected with the backplate through a plurality of connectors. The connector for connecting the back board and the exchange single board is arranged on one side board surface, and the connector for connecting the service single board is arranged on the other side board surface.

Fig. 7A is a front view, fig. 7B is a side view, and fig. 7C is a top view of the connection structure between the communication device boards of this embodiment. The housing 4 is omitted in fig. 5B.

As shown in the figure. The back plate is parallel to the ventilation direction inside the device, which is horizontal in this embodiment, and the fan 6 is arranged at the rear of the back plate 3. The service board 1 is pushed in from the front of the housing 4 and is vertically connected to the backplane 3 through a connector 5, which may be a plug-in connection. The switch board 2 is pushed in from the front of the chassis 4, and is connected to the backplane 3 through a plurality of connectors 5 and is parallel to the backplane 3, for example, a plug-in connection is possible. As an example, there are 8 service boards 1 in the figure, which are located obliquely above the backplane 3 after connection, and each service board 1 is connected to the backplane 3 through a pair of connectors 5, and the plugging and unplugging manner is conventional.

In order to realize multi-connector connection between the single switch board 2 and the backplane 3, the single switch board 2 and the backplane 3 of the present embodiment are also horizontally disposed, and a plurality of connectors are arranged in a transverse direction (perpendicular to the ventilation direction) at the rear of one side board surface (the front and the rear of the board are consistent with the front and the rear of the enclosure), and 4 connectors are taken as an example in the figure, and may be 2 or other numbers greater than or equal to 3. Correspondingly, a plurality of connectors are arranged in the corresponding positions of the front part of one side board surface of the back board 3 along the transverse direction, and after the single switch board 2 is inserted in place, the plurality of connectors 5 on the single switch board 2 are connected with the plurality of connectors 5 in the 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 backplane 3 is disposed on the lower board surface of the backplane 3, but in other embodiments, the connector 5 on the switch board 2 may be disposed on the lower board surface of the switch board 2, and the connector 5 on the backplane 3 may be disposed on the upper board surface of the backplane 3, in which case, the service board 1 should be connected to the obliquely lower side of the backplane 3.

In the inter-board connection structure of the embodiment, the exchange single board with multiple connectors and the backboard are both horizontally arranged, the service single board with only one connector is vertically connected with the backboard, so that ventilation and heat dissipation are facilitated, and meanwhile, the exchange single board slot position is provided with the multiple connectors, so that the requirement of large-capacity exchange can be met. Compared with the first embodiment, the structure is simpler to realize. The connectors are placed on the back plate in a positive and negative mode, interference is easy to generate in positions, and the size of the connectors is limited, so that the connectors are small, the number of corresponding signals is small, the supported exchange capacity is small, and the connector is suitable for relatively small-sized systems.

EXAMPLE III

This embodiment provides a communication device, including casing and inter-plate connection structure, inter-plate connection structure constitutes the communication system who takes the exchange, and this connection structure includes a plurality of backplates, a plurality of backplates all are on a parallel with the inside ventilation direction of equipment, and business veneer and exchange veneer all are connected with the backplate is perpendicular, and exchange veneer passes through the connector and is connected respectively with two at least backplates among them, has also constituted the exchange veneer on the whole and has been connected with the many connectors of backplate.

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

As shown in the figure. The plurality of back plates 3 are all parallel to the ventilation direction inside the device, and the plurality of back plates 3 are all vertically arranged (if there is no comparison object, vertical or horizontal arrangement refers to vertical or horizontal arrangement relative to the ground). The transverse metal strips can be placed on the frame and provided with the positioning holes, and each small back plate is provided with the positioning pin so as to realize accurate positioning of each back plate. The fan is arranged at the rear of the back plate 3. The service single board 1 is pushed in from the front of the housing, and is vertically connected with the plurality of backplanes 3 through one or more connectors 5, which may be plug-in connection. The switch board 2 is pushed in from the front of the chassis 4, and is vertically connected with the backplanes 3 through the connectors 5, which may be plug-in connection. The figure shows 4 service boards 1, 2 switch boards and 3 backplanes, where the service board 1 is horizontally arranged, and each service board 1 may be connected to one or more backplanes 3 through a connector 5, and the plug-in and pull-out manner is conventional.

In order to implement multi-connector connection between the single switch board 2 and the backplane 3, in this embodiment, a plurality of backplanes are used, the single switch board 2 is horizontally disposed, and a plurality of connectors are disposed at the rear of a side board surface, which is illustrated by 3 connectors as an example, and may be 2 connectors, or other numbers greater than 3 connectors. Correspondingly, a plurality of connectors are arranged at the front part of one side plate surface of each back plate 3, and after the single exchange plate 2 is inserted in place, each connector 5 is connected with one connector 5 at a corresponding position on one back plate 3 in the plurality of connectors 5 on the single exchange plate 2. In the figure, the switch board 2 is connected to each backplane 3 by a connector 5, but the invention need not be so, and may be connected to some of the backplanes (more than 2 backplanes) by connectors 5. In the figure, the connectors 5 on the single exchange board 2 and the back board 3 are both provided on one side of the board surface, but in other embodiments, the connectors may be provided on both sides of the board surface.

In the existing third mode, 1 switch board is connected to 1 backplane only, and only 1 contact point is available, so that only 1 connector (or 2 connections) can be placed. The function and performance are limited. In the embodiment, a multi-backplane scheme is adopted to split the backplane into a plurality of small backplanes. A single switch board can be connected with a plurality of backplanes, has a plurality of contact points with the backplanes, and can be provided with a plurality of connectors. The number of signals and the bandwidth are also multiplied.

In this embodiment, the number of the back plates can be flexibly configured according to the types and the number of various requirements, so that upgrading is facilitated. All backplanes may be divided into groups, with different groups being used for transmitting different types of signals in the communication system. For example, the backplane sequences from left to right in FIG. 8 are named as backplane one, backplane two, and backplane three. The data channel and the high-speed signal are divided into a backplane single-channel SAS (Serial Attached SCSI), which is a computer hub interface, and the functions of the data channel and the high-speed signal are mainly data transmission of Peripheral parts, which is currently the mainstream protocol standard of a storage function), a backplane double-channel PCIE (Peripheral Component Interconnect Express, a standard interface of a processor local bus) signal x4 bandwidth, and a backplane triple-channel PCIE signal x4 bandwidth. In case both traffic planes are not needed, the puncturing may be done. For example, only the first backboard, the second backboard and the third backboard are installed as long as the SAS storage system is used; only a second backboard and a third backboard are installed as long as the PCIE system is adopted; it is also possible to install only backplane two when PCIE bandwidth does not need x 8.

The embodiment also achieves the requirement of being beneficial to ventilation and heat dissipation, and the exchange single board slot position is provided with a plurality of connectors to realize large-capacity exchange. Compared with the first embodiment and the second embodiment, the structure is relatively simple to realize, and large exchange capacity can be realized. In this way, the connectors of the service single board may also need to be multiple to interface to multiple split backplanes. The switch board may use a large connector while the service board uses a small connector. The embodiment is suitable for large-scale communication equipment systems, such as large data exchange equipment, which need large exchange capacity and need more connectors to carry more signals.

It should be noted that the structure of this embodiment may be converted into a structure in which a plurality of backplanes are horizontally disposed, and a service single board and a switch single board are vertically disposed, that is, a structure obtained by rotating the structure in fig. 8 by 90 degrees to the left or the right, and 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 housing. The first embodiment and the second embodiment are similar, and the structures in the corresponding figures can be rotated to obtain another structure with the same relative connection relationship between the plates, but the structure changes in the horizontal or vertical direction, and the corresponding effects can be achieved.

In the three embodiments, the back plate is parallel to the ventilation direction in the equipment, so that ventilation and heat dissipation are facilitated, and high-capacity exchange is supported. The problems that heat dissipation of existing main communication equipment is limited, the number of the connectors of the switching single board is not enough, and the bandwidth is limited are solved.

The board-to-board connection structure of the first embodiment is suitable for most systems. For a smaller system, the board-to-board connection structure of the second embodiment can be adopted. The method is simple to implement and low in cost. For larger systems, large data exchange equipment, such as 9U, 12U height cabinets. The multiple backplane scheme of example three may be employed.

Example four

In the inter-board connection structure of this embodiment, according to the thinking of signal classification, veneer split, adopt a plurality of backplates, different from the third embodiment, this a plurality of backplates include the backplate of perpendicular and level in the direction of ventilation simultaneously.

The communication device of this embodiment includes a housing and an inter-board connection structure, where the inter-board connection structure forms a communication system with switching, as shown in fig. 9A and 9B, the inter-board connection structure includes a service single board 1, a switching single board 2, and a backplane, where the backplane includes a first backplane 31 parallel to a ventilation direction inside the communication device and a second backplane 32 perpendicular to the ventilation direction inside the communication device, the service single board 1 is respectively and vertically connected to the first backplane 31 and the second backplane 32 through connectors, and the switching single board 2 is respectively and vertically connected to the first backplane 31 and the second backplane 32 through connectors.

In this embodiment, the ventilation direction inside the communication device is a direction from the operation surface to the back surface of the housing, and the first back plate 31 and the second back plate 32 are disposed at the back of the communication device perpendicularly to the ground. The fan may be disposed behind the back panel. In this embodiment, the inter-board connection structure includes 2 switch boards 2, and each switch board 2 is connected to the first backplane 31 and the second backplane 32 through more than 3 connectors. The first backplane 31 and the second backplane 32 may be used to transmit different types of signals used in the communication system. For example, the first backplane may route more signals, such as being a high speed signal data channel. The second backplane may take fewer signals, such as low speed control signals. The service board may be provided with 2 sockets, one of which is connected to the first backplane 31 and the other of which is 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 not limited thereto.

In this embodiment, all the connectors 5 on the same service board 1 and the same switch board 2 may be arranged on a same line, the connector on the first backplane 31 may adopt a bent male connector, and the connector on the second backplane 32 may adopt a bent male connector, and it is only necessary to align the connectors of the first backplane and the second backplane at the contact surfaces.

The communication device of each of the above embodiments may have other inter-board connection structures besides the described inter-board connection structure, that is, a plurality of communication systems with exchanges may be implemented in one communication device, and these inter-board connection structures may be the same or different, for example, 2 or 3 inter-board connection structures in the above 3 embodiments may exist in one housing at the same time. In addition, although the above embodiment exemplifies a communication system of a dual star structure, the present invention may be applied to a communication system of a single star structure (only one switch board).

In the first embodiment, a plurality of connectors (not shown) at the lower part of the board surface of the single board 2 are arranged in the longitudinal direction, and a plurality of connectors at corresponding positions on the board surface of the backboard are also arranged in the longitudinal direction. Therefore, in the installation process of the service single board, a method of firstly moving longitudinally and then moving downwards, aligning with the backplane connectors one by one and then connecting is needed. If the guide structure is adopted in the pushing process, the guide structure different from that used by the common single plate is adopted.

EXAMPLE five

The present embodiment provides a guiding structure for a board in a communication device, as shown in fig. 10B, the guiding structure is disposed on a rack 8, the guiding structure includes a lower rail 71 and an upper rail 72, and the lower rail 71 and the upper rail 72 are stepped rails and the front portion is higher than the rear portion. In a specific structure, in this embodiment, the lower rail 71 is a linear rail with an "|" or inverted "T" shaped groove, and a transition portion is provided at the front portion thereof; the upper rail 72 is a linear rail with a "T" shaped slot, with a transition section at the rear. Only one of the upper rail and the lower rail may be provided. This guide structure of this embodiment can be used for guiding the incoming board of the exchange board in which a plurality of connectors are arranged in the longitudinal direction in the first embodiment. But of course also for guiding other veneers of similar construction.

For comparison, fig. 10A illustrates a case where the service single board 1 is connected to the backplane through a common guiding structure, and as shown in the figure, a user can hold the front panel 11 of the service single board 1 to operate, and push the upper and lower sides of the service single board 1 along the tracks defined by the lower guide rails 71 and the upper guide rails 72 disposed on the rack 8, respectively. The lower rail 71 and the upper rail 72 are both linear rails.

Fig. 10B is a schematic diagram of the connection of the single exchange board 2 to the backplane through the guiding structure of the present embodiment, and as shown in the figure, the guiding structure includes a rack 8, and a lower guide rail 71 and an upper guide rail 72 disposed on the rack 8. The lower rail 71 and the upper rail 72 are both stepped rails, with the front higher than the rear. Wherein, the lower guide rail 71 is provided with a T-shaped groove, the front part is provided with a transition part, and the rear part of the upper guide rail 72 which is provided with an I-shaped or inverted T-shaped groove is provided with a transition part so as to realize the change of height. In the drawings, the transition portion is a slope, but the invention is not limited thereto, and the transition portion may be a curved surface having a curvature, or a vertical surface, etc. When in connection, a hanger 9 is connected above the rear part of the plate surface of the exchange veneer 2, the hanger 9 is T-shaped, the upper part is wider, and the hanger can be embedded into the T-shaped groove of the upper guide rail 72 and can slide along the longitudinal groove of the upper guide rail 72. The lower end of the plate surface of the single exchange plate 2 can be inserted into the groove of the lower guide rail 71 and slide. For fitting, the lower side of the single exchange plate 2 also has a shape with a high front and a low back, and a transition part. In the present application, the front and rear portions of the guide rail and the exchange board are identical to the front and rear portions of the housing.

During installation, the front end of the service single board 1 is hung on the upper guide rail through the hanger 8, a user can hold the panel 21 at the front part of the exchange single board 2, the upper side and the lower side of the service single board 1 are respectively pushed in along the track defined by the lower guide rail 71 and the upper guide rail 72 arranged on the rack 8, when the transition part of the lower guide rail 71 and the upper guide rail 72 is reached, the service single board 1 moves towards the oblique lower side (or the lower side), so that the connectors on the service single board 1 correspond to the connectors on the backboard one by one, and then the service single board and the backboard are coupled by pushing forwards to complete the connection of the service single board and the backboard. The guide structure can ensure the stability of the veneer in the pushing and pulling processes.

Although the present embodiment provides the above-mentioned guiding structure, the present invention is not limited to this, for example, only the upper guide rail or the upper guide rail may be included, and other direction-changing and pushing structures for realizing the insertion and pulling between the single boards may be used.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A kind of communication equipment, including chassis and a inter-board connection structure, the said inter-board connection structure forms a communication system with exchange, the said inter-board connection structure includes business single-board, exchange single-board and backplate, characterized by that in the said inter-board connection structure:

the backplane is parallel to a ventilation direction inside the communication device;

the service single board is vertically connected with the backboard;

the exchange single board is connected with the back board through a plurality of connectors;

the exchange single board is provided with a plurality of connectors.

2. The communication device of claim 1, wherein:

the exchange single board is perpendicular to the backboard after being connected with the backboard, a plurality of connectors on the exchange single board are longitudinally arranged on the board surface, and a plurality of connectors connected with the exchange single board on the backboard are longitudinally arranged at corresponding positions on the board surface; the longitudinal direction is parallel to the ventilation direction.

3. The communication device of claim 2, wherein:

the switch board extends in the longitudinal direction relative to the service board, and at least part of the connectors in the plurality of connectors on the switch board are arranged on the extended part.

4. The communication device of claim 2, wherein:

the communication equipment also comprises a rack, wherein a guide structure used for pushing the exchange veneer is arranged on the rack, the guide structure comprises an upper guide rail and/or a lower guide rail, the upper guide rail and/or the lower guide rail are stepped guide rails, and the front part of the upper guide rail and/or the lower guide rail is higher than the rear part of the upper guide rail and/or the lower guide rail; the lower side of the exchange single board is stepped, and the front part of the exchange single board is higher than the rear part of the exchange single board.

5. The communication device of claim 1, wherein:

the exchange single board is connected with the back board and then is parallel to the back board, a plurality of connectors on the exchange single board are transversely arranged on the board surface, and a plurality of connectors connected with the exchange single board on the back board are transversely arranged at corresponding positions on the board surface; the transverse direction is perpendicular to the ventilation direction.

6. The communication device of claim 5, wherein:

the connector for connecting the backboard and the exchange single board is arranged on one side of the board surface, and the connector for connecting the backboard and the service single board is arranged on the other side of the board surface.

7. The communication device of claim 1, wherein:

the inter-board connecting structure comprises a plurality of parallel back boards, the exchange single board is respectively connected with at least two back boards through connectors, and the exchange single board is perpendicular to the back boards after being connected.

8. The communication device of claim 7, wherein:

the plurality of parallel backplanes are divided into a plurality of groups, different groups being for transmitting different types of signals used in the communication system; the exchange single board and the service single board are connected with at least one backboard in each group of backplanes.

9. The communication device of any of claims 1-8, wherein:

the ventilation direction inside the communication device is a direction from the operation surface to the back surface of the housing, and the back plate is disposed at the back of the communication device vertically or horizontally with respect to the ground.

10. The communication device of any of claims 1-8, wherein:

the inter-board connection structure comprises 2 exchange single boards, and each exchange single board is connected with the back board through more than 3 connectors.

11. A kind of communication equipment, including chassis and a inter-board connection structure, the said inter-board connection structure forms a communication system with exchange, the said inter-board connection structure includes business single-board, exchange single-board and backplate, characterized by that: the backplane comprises a first backplane parallel to the ventilation direction inside the communication equipment and a second backplane perpendicular to the ventilation direction inside the communication equipment, the service single board is respectively and vertically connected with the first backplane and the second backplane through connectors, and the exchange single board is respectively and vertically connected with the first backplane and the second backplane through connectors.

12. The communication device of claim 11, wherein:

the ventilation direction in the communication device is a direction from the operation surface to the back surface of the housing, and the first back plate and the second back plate are arranged at the back of the communication device perpendicularly relative to the ground.

13. The communication device of claim 11 or 12, wherein:

the inter-board connection structure comprises 2 exchange single boards, and each exchange single board is connected with the first back board and the second back board through more than 3 connectors.

14. The communication device of 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.

15. The communication device of claim 11, wherein: the system also comprises an upper guide rail and a lower guide rail which are arranged on the rack and used for inserting and guiding the switching single board or the service single board.

16. The communications device of claim 15, wherein: the upper guide rail is a stepped guide rail, and the front part of the upper guide rail is higher than the rear part of the upper guide rail; the upper guide rail is provided with a T-shaped groove, and the rear part of the upper guide rail is provided with a transition part; the lower guide rail is a stepped guide rail, and the front part of the lower guide rail is higher than the rear part of the lower guide rail; the lower guide rail is provided with an I-shaped or inverted T-shaped groove, and the front part of the lower guide rail is provided with a transition part.