CN104080308A - Back plate and communication equipment with same - Google Patents

Abstract

The invention provides a back plate. The back plate comprises a mounting plate and multiple connector floating modules. Each connector floating module comprises a mounting groove formed in the mounting plate and multiple connectors contained in the mounting groove, two opposite end faces of each connector are respectively provided with a limiting protrusion, limiting grooves corresponding to the limiting protrusions of the connectors are formed in each mounting groove, the limiting protrusions of each connector are clamped in the corresponding limiting grooves and are in clearance fit with the limiting grooves, and therefore the connectors can float relative to the mounting grooves. The invention further provides communication equipment with the back plate.

Description

Backplane and communication equipment with the backplane

technical field

The invention relates to a backboard and communication equipment with the backboard.

Background technique

The communication equipment of the communication system generally includes three main components: a service board, a backplane and a switch board, and the signal interconnection between the service board and the switch board is realized through the backplane. The existing traditional backplane is composed of a rigid fixed PCB, and several connectors are installed on the PCB to form a module, which is installed on the machine frame of the communication equipment for fastening and fixing. With the continuous development of communication systems, more and more high-speed and large-capacity system equipment are used, and the reliability requirements are also getting higher and higher, resulting in the size and number of layers of the backplane becoming larger and larger. The connectors on the backplane The assembly accuracy will exceed the fitting tolerance capability of the connector, and the connector is very easy to be damaged during the process of plugging and unplugging a single board (subcard). One of the traditional methods is to control the position accuracy of the connector on the backplane, but the process control is complicated, and the complicated wiring affects the transmission signal rate.

Contents of the invention

The invention provides a backplane capable of allowing the connector to have space to float, reducing precision requirements and processing difficulty, and realizing high speed.

It is also necessary for the present invention to provide a communication device with the backplane.

In one aspect, a backplane is provided, the backplane includes a mounting plate and several connector floating modules, each of the connector floating modules includes a mounting groove arranged on the mounting plate and is accommodated in the mounting plate. Several connectors in the groove, and the installation groove and the several connectors accommodated in it are assembled through the limit groove and the limit protrusion of the clearance fit, so that the connector can be installed relative to the Slot float.

In a first possible implementation manner, the backplane further includes a flexible transmission medium, and signals are transmitted between corresponding connectors through the flexible transmission medium.

With reference to the first aspect or the first possible implementation manner of the first aspect, in the second possible implementation manner, the installation board is composed of at least one board body, the at least one board body has a surface, and the The mounting grooves of several floating connector modules are opened on the at least one board and penetrate the surface,

Each of the connectors is assembled with the installation groove through at least two pairs of clearance-fit limiting grooves and limiting protrusions;

The position-limiting protrusions are arranged on two opposite ends of the connector, and the position-limiting grooves matched with the position-limiting protrusions are provided on both sides of the installation groove;

Alternatively, the limiting grooves are arranged at two opposite ends of the connector, and the limiting protrusions matched with the limiting grooves are arranged on two side surfaces of the installation grooves.

With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner, the installation groove is surrounded by two opposite side plates connected to two opposite end plates respectively,

Each of the connectors is assembled with the installation groove through at least two pairs of gap-fit limiting grooves and limiting protrusions;

The limiting groove is opened on two opposite side plates of the installation groove, and faces the inside of the installation groove, and the limiting protrusion matched with the limiting groove is arranged on the connector superior;

Alternatively, the limiting protrusion is arranged on the two opposite side plates and faces into the installation groove, and the limiting groove matched with the limiting groove is opened on the connector.

In combination with the second possible implementation manner, in the fourth possible implementation manner, when the number of the boards is multiple, and each of the boards is provided with several installation grooves, the multiple boards The body is connected fixedly or floatingly in turn, so that the connectors in the several installation slots are on the same plane.

With reference to the third possible implementation manner, in the fifth possible implementation manner, the installation plate is composed of at least one carrier, each of which includes two parallel and opposite support plates, and the installation groove is installed between the two parallel and opposite support plates, and the installation groove is connected with the two parallel and opposite support plates through at least one pair of clearance-fitting inserts and slots, so that the installation groove Can move relative to the mounting plate;

The plugboards are arranged on the two parallel and opposite support plates, and the slots that fit the gaps of the plugboards are arranged on the installation grooves

The two parallel and opposite support plates are provided with plug-in plates, and the slots matched with the plug-in plates are arranged on the outer surfaces of the two opposite end plates of the installation groove;

Alternatively, slots are provided on the two parallel and opposite support plates, and the inserting plates matched with the slots are provided on the outer surfaces of the two opposite end plates of the installation groove.

With reference to the first aspect and any one of the first to fifth possible implementations of the first aspect, in a sixth possible implementation, the floating connector module further includes a cover plate, and the cover The plate cover seals the position-limiting protrusion in the position-limiting groove at the place where the position-limiting groove and the position-limiting protrusion cooperate.

With reference to the fifth or sixth possible implementation manner of the first aspect, in a seventh possible implementation manner, the at least one carrier further includes several fixing plates, and both ends of each fixing plate are respectively fixed to the The two supporting plates and the several fixing plates divide the carrying frame into several compartments for accommodating the installation slots.

With reference to the fifth or sixth possible implementation manner of the first aspect, in the eighth possible implementation manner, there are multiple bearing frames, and the multiple bearing frames are fixedly connected or floatably connected in turn, so that The connectors in the several installation slots are on the same plane.

With reference to the fifth or sixth possible implementation of the first aspect, in the ninth possible implementation, there are multiple carriers, and the multiple carriers are fixedly connected at knuckles or floatable The connections make the connectors in the plurality of mounting slots on different sides.

In a second aspect, a communication device is provided, which includes a machine frame and any one of the above-mentioned implementation manners, wherein the mounting plate of the backplane is fixed on the machine frame.

The connector on the backboard of the present invention can be installed relatively floatingly on the installation board, so that the connector has a certain activity space on the backboard, reducing the dimensional accuracy requirements of the backboard, processing difficulty and the cost of the connector. Position accuracy, easy to connect the connector with the outside world.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic diagram of a backplane structure in a preferred embodiment of the present invention.

FIG. 2 is a schematic plan view of three backplane connections shown in FIG. 1 .

FIG. 3 is a schematic diagram of the connector on the backplane of the present invention shown in FIG. 1 .

FIG. 4 is a schematic diagram of a partial structure of the mounting board with the connector floating module shown in FIG. 1 .

FIG. 5 is a schematic structural view of the installation board of the present invention shown in FIG. 1 , wherein the board body of the installation board is a board body and is provided with a plurality of installation grooves.

FIG. 6 is a schematic structural diagram of another preferred embodiment of the mounting board and the connector floating module of the backplane of the present invention.

FIG. 7 is a schematic structural diagram of the connector floating module shown in FIG. 5 .

Fig. 8 is a schematic diagram of the installation board shown in Fig. 7 being arranged at an included angle.

FIG. 9 is a schematic diagram of the assembly of the backplane shown in FIG. 2 and the communication device, wherein the communication device includes a bottom board.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

Referring to FIG. 1 , FIG. 3 and FIG. 4 , a preferred embodiment of the present invention provides a backplane 100 , the backplane 100 includes a mounting board 10 and several connector floating modules 15 . Each of the connector floating modules 15 includes a mounting groove 20 disposed on the mounting plate 10 and a plurality of connectors 25 accommodated in the mounting groove 20 . Limiting protrusions 251 are respectively provided on opposite ends of each connector 25 . A limiting groove 201 is provided in the installation groove 20 corresponding to the limiting protrusions 251 of the plurality of connectors 25 . The limiting protrusion 251 of each connector 25 is locked in the corresponding limiting groove 201 and is loosely matched with the limiting groove 201 , so that the connector 25 can float relative to the installation groove 20 .

The connector 25 on the backplane 100 of the present invention is relatively floatably installed on the mounting plate 10, so that the connector 25 and the backplane have a certain activity space, reducing the dimensional accuracy requirements and processing difficulty of the backplane 100 And the position accuracy of the connector 25 facilitates the plugging of the connector 25 and the outside world.

Please also refer to FIG. 2 , further, the backplane 100 further includes a flexible transmission medium 50 , and signals are transmitted between the plurality of connectors 25 through the flexible transmission medium 50 . The flexible transmission medium 50 may be a cable, an optical fiber, a flexible PCB, a cable, and the like. The signal rate or density transmitted by the connectors 25 on the backplane 100 through the flexible transmission medium 50 can be adjusted according to requirements, thereby increasing the transmission rate.

Specifically, as shown in FIG. 2 and FIG. 3 , the mounting plate 10 is provided with a plurality of mounting holes or studs, bolts, etc. for mounting on the frame of the communication equipment. The connector 25 includes a housing 250 , a plugging end 252 and a guiding end 253 . The material of the mounting board 10 may be one of metal, plastic, ceramic and resin. The two limiting protrusions 251 protrude from opposite ends of the housing 250 . The mating dimensions of the mounting plate 10 and the floating connector module 15 can be matched according to requirements. The limiting protrusion 251 can also be arranged on the installation groove 10 , and the limiting groove 201 is arranged on the housing 250 . The floating manner of the connector 25 and the installation groove 10 may also be realized by the cooperation of the hole and the shaft or pin. The connector 25 and the flexible transmission medium 50 are fixed by welding, crimping, winding, welding, clamping and other connection methods. The side of the backplane 100 where the flexible transmission medium 50 is installed is also covered with a protective cover 60 to prevent the flexible transmission medium 50 and the plurality of connectors 25 from being polluted or damaged.

Please refer to FIG. 5 , further, the installation board 10 is composed of at least one board body 11 . The at least one plate body 11 has a surface 110 . The mounting slots 20 of the plurality of connector floating modules 15 are opened on the at least one board body 11 and pass through the surface 110 . The plurality of limiting grooves 201 are arranged on the surface 11 on both sides of the installation groove 20 opposite to each other. In this embodiment, a board body 11 is taken as an example, and the plurality of installation grooves 20 are spaced apart on the board body 11 and penetrate through the surface 110 . Each of the installation slots 20 is a through slot and accommodates a plurality of the connectors 25 , and the insertion ends 252 and the guide ends 253 are respectively exposed from the installation slots 20 . The multiple connectors 25 have a certain movable space in the installation groove 20, so as to prevent the connectors 25 from being easily damaged during the plugging and unplugging process.

Further, as shown in FIG. 2 , when there are multiple boards 11 , the multiple boards 11 are fixedly connected or floatingly connected in turn, so that the connectors 25 in the several installation grooves 20 are in the position of same plane. The connector 25 in the connector floating module 15 floats relative to the mounting groove 20 of the mounting plate 10, and the mounting plate itself formed by the plurality of boards 11 floats, and then the connector floating module 15 floats relative to the mounting groove 20 of the mounting plate 10. The mounting plate 10 thus forms a two-stage floating backplane 100 . Specifically, taking three boards 11 as an example, the three boards 11 are sequentially fixedly connected to form a flat mounting board 10, and the insertion ends 252 of the several connectors 25 are located in the same plane of the mounting board 10. . The three boards 11 are connected at knuckles and are located on three different planes so that the installation board 10 is a curved board, and the insertion ends 252 of the several connectors 25 are located on three different planes of the installation board 10 .

Further, each connector floating module 15 also includes a cover plate 155 , as shown in FIG. 1 . The cover plate 155 covers the limiting grooves 201 on both sides of the installation groove 20, and seals the limiting protrusion 251 in the limiting groove 201 to prevent the limiting protrusion 251 from detaching from the limiting groove 201. Limiting groove 201. In this embodiment, the size and shape of the cover plate 155 are the same as those of the installation board 10 , so as to cover the limiting slot 201 on the installation board 10 . The cover plate 155 can be omitted, and the side with the limiting groove can be directly fixed to the frame of the communication device, and the limiting protrusion 251 can also be sealed in the limiting groove 201 .

Please refer to Fig. 6 and Fig. 7, in another embodiment of the present invention, the difference from the above embodiment is that: first, the mounting slots 30 of the plurality of floating connector modules 28 are formed by two opposite sides The plate 31 is connected with two opposite end plates 32 respectively to form a circle. The limiting slots 33 are opened on the two opposite side plates 31 and face into the installation slot 30 . The connector 25 is accommodated in the installation slot 30 , and the insertion end 252 and the lead end 253 are respectively exposed from the installation slot 30 . Furthermore, the outer surfaces of the two end plates 32 are provided with slots 321 .

Second, the mounting plate 40 is composed of at least one carrier 45 . The at least one carrier 45 includes two parallel and opposite support plates 451 . The two supporting plates 451 are provided with several inserting plates 452, and the several inserting plates 452 on one supporting plate 451 of the two supporting plates 451 are connected with the number of inserting plates 452 on the other supporting plate 451 respectively. The two boards 452 are oppositely arranged. The installation grooves 30 of the plurality of connector floating modules 28 are installed between the two support plates 451 . The two slots 321 of the installation groove 30 are held respectively on the opposite inserting plates 452 on the two supporting plates 451, and are clearance-fitted with the inserting plates 452, so that the connector 25 is equipped with The installation slot 30 can float relative to the installation plate 40 . It can be understood that the slot 321 may also be disposed on the support plate 451 ; the inserting plate 452 may be disposed on the end plate 32 .

In this embodiment, taking a carrier frame 45 as an example, the two support plates 451 are elongated plates, and the two ends are connected by connecting plates (not shown in the figure) to form a bar-shaped frame. The plurality of inserting boards 452 protrude from one side of the supporting board 451 at intervals. The plurality of connector floating modules 28 are plugged into the board 452 through the slots 321 on the installation groove 30 and cooperate with the board 452 to form a certain space, thereby realizing that the installation groove 30 is opposite to the Carrying frame 45 activities. While the connector 25 is movable relative to the installation groove 30, the connector floating module 28 can also move with the installation plate 40 through the installation groove 30, thereby reducing the position accuracy requirements of the connector, and the back-to-back The dimensional accuracy requirements of the board increase the mating tolerance range of the connectors on the backplane.

Further, the at least one carrier 45 also includes several fixing plates 455 . Both ends of each fixing plate 455 are respectively fixed on the two supporting plates 451 , and the several fixing plates 455 divide the carrier frame 45 into several partition areas 456 for accommodating the installation slots 30 . The supporting plate 451 or the fixing plate 455 are provided with locking parts 457 such as screws, buckles, and pins. It is used to connect the carrier 45 with communication equipment or a plurality of carriers 45 .

Further, when there are multiple carrying frames 45, the multiple carrying frames 45 are fixedly connected or floatably connected in turn, so that the connectors 25 in the several mounting grooves 30 are on the same plane. Specifically, taking three bearing frames 45 as an example, the three bearing frames 45 are sequentially fixedly connected to form a flat mounting plate 30, and the insertion ends 252 of the several connectors 25 are located in the same plane of the mounting plate 10. .

Please refer to FIG. 8 , further, the plurality of bearing frames 45 are fixedly connected at knuckles or connected in a floating manner so that the connectors 25 in the plurality of installation grooves 30 are on different surfaces. In this embodiment, taking three bearing frames 45 as an example, the three bearing frames 45 are connected at right angles and are respectively located on three different planes so that the mounting plate 30 is a three-dimensional shape, and the insertion of the several connectors 25 Ends 252 lie in three different planes of mounting plate 30 .

Referring to FIG. 9 , the present invention also provides a communication device, which includes a frame 200 and any backplane described in the above two embodiments. The backplane is fixed on one side of the machine frame 200 . In this embodiment, the backplane 100 of the first embodiment is taken as an example. The machine frame 200 also includes a bottom plate 2001, on which several through slots are opened, and the bottom plate 2001 is clamped between the machine frame 200 and the back plate 100, and the floating molds of the several connectors The connectors within the group pass through the slots. The backplane can be installed on the bottom plate 2001 first, because the bottom plate 2001 is installed on the machine frame 200; the bottom plate 2001 is first installed on the machine frame 200, and then the connector 25 passes through the through slot , the backplane 100 is then installed and fastened to the machine frame 200 . The bottom plate 2001 is a printed circuit board.

What is disclosed above is only a preferred embodiment of the present invention, and certainly cannot limit the scope of rights of the present invention with this. Those of ordinary skill in the art can understand the whole or part of the process of realizing the above-mentioned embodiment, and make according to the claims of the present invention The equivalent changes still belong to the scope covered by the invention.

Claims (11)

1. a backboard, it is characterized in that, described backboard comprises mounting panel and the unsteady module of several connector, described in each, the connector module that floats comprises and is arranged at the mounting groove of described mounting panel and is contained in the several connectors in described mounting groove, and described mounting groove assembles by stopper slot and the spacing preiection of matched in clearance with the several described connector of accommodating in the inner, so that described connector can float by relatively described mounting groove.

2. backboard as claimed in claim 1, is characterized in that, described backboard also comprises flexible transmission medium, between corresponding described connector, carries out signal transmission by flexible transmission medium.

3. backboard as claimed in claim 1 or 2, is characterized in that,

Described mounting panel is made up of at least one plate body, and described at least one plate body has a surface, and the mounting groove of the unsteady module of described several connectors is opened on described at least one plate body and runs through described surface,

Stopper slot and spacing preiection assembling by least two pairs of matched in clearance between connector and described mounting groove described in each;

Described spacing preiection is located at two opposed ends of described connector, and the described stopper slot matching with described spacing preiection is located in the both side surface of described mounting groove;

Or described stopper slot is located at two opposed ends of described connector, the described spacing preiection matching with described stopper slot is located in the both side surface of described mounting groove.

4. backboard as claimed in claim 1 or 2, is characterized in that,

Described mounting groove is connected and surrounds respectively by two relative side plate end plates relative with two,

Described in each, between connector and described mounting groove, assemble by least two pairs of matched in clearance stopper slots and spacing preiection;

Described stopper slot is opened on two relative side plates of described mounting groove, and towards the inner side of described mounting groove, the described spacing preiection matching with described stopper slot is located on described connector;

Or described spacing preiection is located on described two relative side plates and in described mounting groove, the described stopper slot matching with described stopper slot is opened on described connector.

5. backboard as claimed in claim 3, it is characterized in that, the quantity of described plate body is multiple, and while being equipped with several mounting groove on each described plate body, multiple described plate bodys are fixedly connected sequentially or relocatable connection, make connector in described several mounting groove in same plane.

6. backboard as claimed in claim 4, it is characterized in that, described mounting panel is made up of at least one carrier, described in each, carrier comprises two parallel relative supporting brackets, described mounting groove is loaded between described two parallel relative supporting brackets, and plate and slot by least one pair of matched in clearance between described mounting groove and described two parallel relative supporting brackets connect, so that described mounting groove can move relative to described mounting panel;

Described plate is located in described two parallel relative supporting brackets, is located on described mounting groove with the described slot of described plate matched in clearance

Described two parallel relative supporting brackets are provided with plate, and the described slot matching with described plate is located on the outer surface of two relative end plates of described mounting groove;

Or described two parallel relative supporting brackets are provided with slot, the described plate matching with described slot is located on the outer surface of two relative end plates of described mounting groove.

7. the backboard as described in claim 1 to 6 any one, is characterized in that, the unsteady module of described connector also comprises cover plate, and described cover plate is placed on described stopper slot and described spacing preiection cooperation place, and described spacing preiection is encapsulated in described stopper slot.

8. the backboard as described in claim 6 or 7, it is characterized in that, described at least one carrier also comprises several fixed heads, and each fixed head two ends is individually fixed in described two supporting brackets, and then described carrier is divided into several separated regions of accommodating mounting groove by several fixed head.

9. the backboard as described in claim 6 or 7, is characterized in that, described carrier is multiple, and described multiple carriers are fixedly connected sequentially or relocatable connection, makes connector in described several mounting groove in same plane.

10. the backboard as described in claim 6 or 7, is characterized in that, described carrier is multiple, is that knuckle is fixedly connected with or relocatable connection makes connector in described several mounting groove not on coplanar between described multiple carriers.

11. 1 kinds of communication apparatus, it comprises machine frame and the backboard as described in claim 1 to 10 any one, described backboard is fixed on described machine frame.