CN212229538U - Case hard connection structure based on VPX rear IO board - Google Patents

Abstract

The utility model provides a case hard connection structure based on VPX rear IO board, the rear IO board of using the exchange trench is as the keyset, the special switching trench of internal interconnection is not designed, the module installation quantity in the finite space is increased, the connection steadiness is not firm, the impedance continuity is not good, the installation and maintenance difficulty brought by the cable interconnection mode can also be avoided; the modularized design is adopted, so that the installation difficulty is reduced; a large amount of network differential signals needing to be externally connected are directly led out from the rear IO board, and no wiring processing is carried out on the backboard, so that the quality of the provided network signals is better; flexibly designing the size of the IO plate according to the size of the equipment to complete internal interconnection; the hard connection uses a standard VPX connector and can switch high-speed signals; the hard connection structure can also avoid high production and maintenance cost caused by a flexible printed board connection mode.

Description

Case hard connection structure based on VPX rear IO board

Technical Field

The utility model belongs to the technical field of the computer, concretely relates to quick-witted case hard attach structure based on IO board behind VPX.

Background

VPX is a series of standards established by the VITA organization, including basic specifications, mechanical structure, signal definitions, and the like. According to the standard, the VPX equipment consists of a backboard and a front card-inserting function module, wherein the function module is inserted on the front surface of the backboard, and a rear IO card can be selectively inserted on the back surface of the backboard. In application, besides integrating the back board and the functional modules, the VPX device also needs to lead signals of the functional modules to the device-to-external connector, so as to complete internal connection. The internal connection of the case can be divided into three types: the cable interconnection, the flexible printed board interconnection and the hard connection interconnection. The cable interconnection means that a cable is used for connecting the aviation plug and a connector of the backboard; the flexible printed board interconnection means that the flexible printed board is used for connecting the back board and the aviation plug printed board; the hard connection interconnection means that the adapter plate and the connector are used for connecting the back plate and the aviation plug board, and although the hard connection mode has the advantages of stable connection, continuous impedance and simple installation, the hard connection mode has the defects of complex design and high processing precision requirement.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a quick-witted case rigid connection structure based on IO board behind VPX can save space, improves stability, flexibility.

A chassis hard connection structure based on a VPX rear IO panel comprises a back panel (1), a first rear IO adapter panel (3), a second rear IO adapter panel (4), a rear IO panel fixing piece (5) and a rear aerial plug-in module (2);

the rear aviation plug module (2) comprises a rear aviation plug module printed board 8, a VPX connector female head (12) and an aviation plug (13); the back surface of the rear aviation plug module printed board (8) is welded with an aviation plug (13), and the front surface is in compression joint with a VPX connector female head (12) which is electrically connected with the aviation plug (13);

one end of the first rear IO adapter plate (3) and one end of the second rear IO adapter plate (4) are correspondingly inserted into the two exchange slot positions of the backboard (1) respectively, and the other end of the first rear IO adapter plate is electrically connected with a VPX connector male head (7) and used for being interconnected with a VPX connector female head (12) on the rear aviation plug module (2); and the first rear IO adapter plate (3) and the second rear IO adapter plate (4) are fixed on the back plate (1) through the rear IO plate fixing structural member (5).

Furthermore, the rear aviation plug module (2) further comprises a rear aviation plug module structural part (9) which is used for fixing a rear aviation plug module printed board (8) and an aviation plug (13).

Furthermore, a VPX positioning pin (11) is arranged near the VPX connector female head (12) and is inserted into a VPX positioning seat (6) arranged on the back plate (1) in a butting mode and used for positioning the VPX connector male head (7) and the corresponding VPX connector female head (12).

Furthermore, the rear aviation plug module (2) is also provided with a secondary positioning pin (10) for installing and positioning the rear aviation plug module (2).

The utility model discloses following beneficial effect has:

the utility model provides a case hard connection structure based on VPX rear IO board, the rear IO board of using the exchange trench is as the keyset, the special switching trench of internal interconnection is not designed, the module installation quantity in the finite space is increased, the connection steadiness is not firm, the impedance continuity is not good, the installation and maintenance difficulty brought by the cable interconnection mode can also be avoided; the modularized design is adopted, so that the installation difficulty is reduced; a large amount of network differential signals needing to be externally connected are directly led out from the rear IO board, and no wiring processing is carried out on the backboard, so that the quality of the provided network signals is better; flexibly designing the size of the IO plate according to the size of the equipment to complete internal interconnection; the hard connection uses a standard VPX connector and can switch high-speed signals; the hard connection structure can also avoid high production and maintenance cost caused by a flexible printed board connection mode.

Drawings

FIG. 1 is a front layout view of a backplane;

FIG. 2 is a schematic view of the internal connection of the case;

FIG. 3 is a schematic diagram of a backplane and a rear IO board hard connection;

FIG. 4 is a schematic view of a rear aviation plug module;

FIG. 5 is a rear view of the rear avionics module;

wherein, 1-a back plate; 2-rear aerial plug-in module; 3-a first rear IO adapter plate; 4-a second rear IO adapter plate; 5-fixing the structural member by the rear IO plate; 6-VPX positioning seat; 7-VPX connector male; 8-rear aviation plug module printed board; 9-rear aerial plug-in module structural member; 10-a secondary positioning pin; 11-VPX locating pins; 12-VPX connector female; 13-aerial plug.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings by way of examples.

As shown in fig. 1, the backplane 1 of the chassis has 16 slot positions, the 7 th slot and the 8 th slot are switching slot positions, the two slot positions are used for plugging a VPX switching module, the switching module has 20 network signal interfaces to the outside, the 6 th slot position of the backplane 1 is a KVM slot position and provides VGA and USB signals to the outside, the other slot positions of the backplane 1 are server module slot positions, and each slot position provides USB and serial signals to the outside. According to the characteristics of the back plate 1: the 7 th slot and the 8 th slot are slots with the most dense external interconnection of the chassis, the slots only define signals J0 and J3-J6, the J3-J5 connectors define 20 external network signals, the two VPX connectors J1 and J2 do not define signals, and the signals of the rest slots can be connected to the J1 and J2 connectors of the exchange slot and output to the aerial terminal of the aerial patch panel through the rear IO panel of the exchange panel.

According to 1 characteristics of backplate and the distribution that the machine case was inserted to outer boat, the utility model discloses IO keysets 4, back IO board mounting 5 and back boat insert module 2 behind backplate 1, first back IO keysets 3, the second hard connection structure, 1 IO keysets 3 after pegging graft of backplate two, 4 again with back boat insert module 2 and connect the switching of constituteing all signals. The internal connection of the chassis is schematically shown in fig. 2.

A schematic diagram of hard connection between the back plate 1 and the rear IO plate is shown in fig. 3; one end of each rear IO adapter plate 3,4 is plugged on the back plate 1, and the other end is connected with a VPX connector male head 7 and is used for being interconnected with a female head 12 of a VPX connector on the rear aviation plug module 2; back IO keysets 3,4 are fixed with backplate 1 through back IO board fixed knot component 5, and the main objective is to increase the fastness that keysets and backplate 1 are connected and increase the rigidity of keysets self.

The schematic view of the rear aviation plug-in module 2 is shown in fig. 4 and 5. The rear aviation plug module 2 consists of a rear aviation plug module printed board 8, a rear aviation plug module structural part 9 and a secondary positioning pin 10; the back of the rear aviation plug module printed board 8 is welded with an external aviation plug 13, and the front is in compression joint with a VPX connector female head 12; a VPX positioning pin 11 is arranged near the VPX connector female head 12 and is inserted into the VPX positioning seat 6 arranged on the back plate 1 for positioning the VPX connector. Distributing a VPX connector female head 12 and a VPX positioning pin 11 according to the aviation plug distribution clearance; the rear aviation plug module structural part 9 is used for fixing a rear aviation plug module printed board 8, an aviation plug 13 and a secondary positioning pin 10; the secondary positioning pin 10 has the function of assisting the installation and positioning of the rear aviation plug module, and is matched with the VPX positioning pin 11 of the rear aviation plug module printed board 8 to complete the high-precision positioning of the hard connection in the case.

The utility model discloses a hard connection structure's assembling process does: firstly, a backboard 1 is installed in a case, then rear IO adapter plates 3 and 4 with an exchange slot position 1/2 are installed with a fixed structural member 5 into a whole, then the rear IO adapter plates are inserted into the backboard 1, and finally a rear aerial plug-in module 2 is inserted. When the signal output by the main board is transmitted to the backboard 1, then the signal is transmitted to the IO adapter board, and finally the signal is transmitted to the outside through the VPX connector.

In summary, the above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (4)

1. A chassis hard connection structure based on a VPX rear IO panel is characterized by comprising a back panel (1), a first rear IO adapter panel (3), a second rear IO adapter panel (4), a rear IO panel fixed structural member (5) and a rear aerial plug-in module (2);

the rear aviation plug module (2) comprises a rear aviation plug module printed board (8), a VPX connector female head (12) and an aviation plug (13); the back surface of the rear aviation plug module printed board (8) is welded with an aviation plug (13), and the front surface is in compression joint with a VPX connector female head (12) which is electrically connected with the aviation plug (13);

one end of the first rear IO adapter plate (3) and one end of the second rear IO adapter plate (4) are correspondingly inserted into the two exchange slot positions of the backboard (1) respectively, and the other end of the first rear IO adapter plate is electrically connected with a VPX connector male head (7) and used for being interconnected with a VPX connector female head (12) on the rear aviation plug module (2); and the first rear IO adapter plate (3) and the second rear IO adapter plate (4) are fixed on the back plate (1) through the rear IO plate fixing structural member (5).

2. A VPX rear IO board based chassis hard-wired structure according to claim 1, wherein the rear aviation plug module (2) further comprises a rear aviation plug module structure (9) for fixing the rear aviation plug module printed board (8) and the aviation plug (13).

3. The hard connection structure of the chassis based on the VPX rear IO board as claimed in claim 1, wherein, a VPX positioning pin (11) is installed near the VPX connector female head (12) and is inserted into a VPX positioning seat (6) arranged on the back board (1) for positioning the VPX connector male head (7) and the corresponding VPX connector female head (12).

4. The VPX rear IO board-based chassis hard-wired structure of claim 1, wherein the rear aviation plug module (2) is further provided with a secondary positioning pin (10) for installing and positioning the rear aviation plug module (2).

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