WO2009067873A1

WO2009067873A1 - Communication single board, chassis, system for detecting insertion and extraction of communication single board, and communication system

Info

Publication number: WO2009067873A1
Application number: PCT/CN2008/072678
Authority: WO
Inventors: Congtu Xiao
Original assignee: Huawei Technologies Co., Ltd.
Priority date: 2007-11-27
Filing date: 2008-10-14
Publication date: 2009-06-04
Also published as: CN101447885A

Abstract

A communication single board, a chassis, a system for detecting insertion and extraction of a communication single board, and a communication system, wherein the communication single board comprises: a single board body, a spanner and a handle strip. A magnet is set on the spanner, a magnetoelectric switch is set at the corresponding place to the magnet on the single board body or the handle strip, when the spanner is closed, the magnetoelectric switch is switched on, and when the spanner is opened, the magnetoelectric switch is switched off.

Description

Communication board, chassis, communication board insertion and removal detection system and communication system

The present invention relates to the field of computer technology, and in particular, to a communication board, a chassis, a communication board insertion and removal detection system, and a communication system. Background technique

The board in the communication system is usually for the concept of a plug-in board (also called a motherboard or a backplane), which may be a circuit board provided with circuit lines and electronic components. In the communication system, there is a special requirement for plugging and unplugging a board. When a board is inserted into or removed from the board, a signal needs to be given to the system. The system performs power-on and power-off detection according to the signal, and the system performs corresponding switching. Operation, to avoid the impact of the board insertion or removal on the system.

At present, there are two ways to detect the plugging and unplugging state of the board. One is the long and short pin detecting mode of the plug connector. As shown in FIG. 1 , the structure of the long and short pin detecting device of the prior art plug connector is inserted. FIG. 2 is a schematic view showing the structure of the long and short needle detecting device of the prior art card connector when the board is pulled out. In FIG. 1 , when the board is inserted into the board, the long board of the board connector 04 and the board connector 05 are long. 01 and the first short needle 02 and the second short needle 03 are connected, since the second needle 08 and the third needle 07 of the single board connector 04 are in communication, the first short needle 02 with the card connector 05 The system circuit 06 electrically connected to the second short pin 03 detects that the circuit is turned on, and the system determines that the board is inserted. In FIG. 2, when the board is pulled out, the first board connector 04 and the board connector 05 are first. Both the short needle 02 and the second short needle 03 are disconnected, and the system circuit 06 electrically connected to the first short needle 02 and the second short needle 03 of the card connector 05 detects that the circuit is disconnected, and the system judges that the board is pulled out. . The advantage of this method is that the structure is simple, and the disadvantage is that since the length difference between the long needle and the short needle is relatively small, the time difference from the short needle disconnection to the long needle disconnection is relatively small, that is, the system switching time is relatively short and cannot be satisfied. Some products are hot swappable.

Another method is to use the micro switch detection mode of the wrench to insert and remove the board. As shown The hand 11 is fixed on the handle bar 13 through the rotating shaft 12, and the wrench 11 is opened before the board 15 is unplugged from the board. When the wrench 11 is opened, the micro switch 14 is triggered to be disconnected, and the micro switch 14 and the switch detecting circuit are turned off. 16 is connected, so that the switch detecting circuit 16 detects that the board 15 needs to be unplugged from the board, thereby performing a corresponding system switching operation. Only a part of the structure of the veneer 15 is shown in Figs. 3 and 4, and the veneer 15 is inserted into the card through the slit 19. In this type of detection, the switching time of the system is relatively long. However, the structural design of the wrench is strict, and the tolerance between the switch and the wrench is less than 0.2. If the pressure is too large, the micro switch is easily damaged. If the pressure is small, the wrench cannot touch the micro switch. This will cause abnormal power on and off. In this structure, you need to open a hole in the panel. There are electromagnetic compatibility problems and dust entry problems, and the protection against electromagnetic compatibility is costly. Summary of the invention

The embodiment of the invention provides a communication board, which overcomes the defect that the micro switch in the prior art board is easily damaged, and realizes the non-contact type board insertion and removal detection.

The embodiment of the present invention provides a communication board, including: a single board body, a wrench and a handle bar for assisting the insertion and removal of the communication board, and the wrench is provided with a magnet on the single board body or the handle bar. A magnetoelectric transfer switch is disposed at a position corresponding to the magnet. When the wrench is closed, the electromagnetic switch is closed, and when the wrench is opened, the electromagnetic switch is opened.

The embodiment of the present invention further provides a chassis for a communication system, including a plug-in board, an interface module, and a plurality of communication boards, where the plurality of communication boards are connected to the interface module, and the interface module is used to complete the The information exchange between the communication board and the external network and the data transmission between the communication boards, the board is provided with a plurality of slots for inserting the communication board, and the communication board includes: a board a body, a wrench and a handle bar for inserting and removing the communication board, the wrench is provided with a magnet, and a magnetoelectric switch is disposed at a position corresponding to the magnet on the single body or the handle bar. After the wrench is closed, the magnetoelectric switch is closed, and when the wrench is opened, the The magnetoelectric transfer switch is turned on.

The embodiment of the invention further provides a communication board insertion and removal detection system, comprising:

Magnetoelectric transfer switch;

a switch detecting circuit connected to the magnetoelectric transfer switch for detecting opening and closing of the magnetoelectric transfer switch;

The system switching control circuit module is connected to the switch detecting circuit for receiving an electric signal that the magnetoelectric switch input by the switch detecting circuit is turned on or closed and performs a switching operation.

The embodiment of the present invention further provides a communication system, which includes at least a chassis, the chassis includes a plug-in board, an interface module, and a plurality of communication boards, and the plurality of communication boards are connected to the interface module, The interface module is configured to complete information exchange between the communication board and the external network, and data transmission between the communication boards, where the plurality of slots are configured for the communication board insertion, and the communication is performed. The board includes: a single board body, a wrench and a handle bar, wherein the wrench is provided with a magnet, and a magnetoelectric switch is disposed on the single body or the handle bar at a position corresponding to the magnet, when the wrench is combined After the upper portion, the magnetoelectric switch is closed, and when the wrench is opened, the magnetoelectric switch is opened.

The communication board provided by the embodiment of the invention, the frame for the communication system, the plugging and unplugging detection system of the communication board, and the communication system are provided by setting a magnet on the wrench to set a magnetoelectric transfer switch on the single body or the handle bar. Compared with the prior art, the non-contact single-board plug-in detection reduces the requirement for the structural precision of the wrench, solves the problem that the micro-switching device of the prior art is easily damaged, and improves the yield.

The present invention will be further described in detail below by way of specific embodiments and drawings. DRAWINGS

FIG. 1 is a schematic structural view showing a state in which a long and short needle detecting device of a prior art card connector is inserted;

Figure 2 shows the structure of the long and short needle detection device of the prior art card connector when the board is pulled out. Figure

FIG. 5 is a schematic structural view of a communication board of the present invention when the wrench is closed;

6 is a schematic structural view of a communication board of the present invention when a wrench is opened;

FIG. 7 is a schematic diagram of Embodiment 1 of a communication board insertion and removal detection system according to the present invention. detailed description

FIG. 5 is a schematic structural view of a communication board according to an embodiment of the present invention. FIG. 6 is a schematic structural view of a communication board according to an embodiment of the present invention. The wrench 11 is fixed to the handle bar 13 by a rotating shaft 12. The wrench 11 and the handle bar 13 are generally used to assist the card to be inserted into or removed from the card. The wrench 11 is provided with a magnet 17, and a magnetic field is disposed on the board body 15 at a position corresponding to the magnet 17. The electric switch 18 is electrically connected to the switch detecting circuit 16. The gap 19 on the wrench is an interface between the board and the board. The board body 15 may be a single circuit line or an electronic device. The circuit board of the component, the single-board body 15 and the wrench 11 and the handle bar 13 are collectively referred to as a communication board. The working principle of the device is as follows: When the communication board is ready to be inserted into the card, the board body 15 is first inserted into the gap 19, then the wrench 11 is closed, and the magnetoelectric switch 18 is closed by the magnetic field of the magnet 17, and is given electricity. After the signal detecting circuit 16 detects the electrical signal, the system determines that the communication board is in the inserted state; when the communication board is ready to be pulled out from the board, the wrench 1 is opened, and the magnetic field of the magnetoelectric switch 18 is lost. The magnetoelectric switch 18 is turned off, and after the switch detecting circuit detects the electrical signal that the magnetoelectric switch 18 is turned off, the system judges that the communication board is pulled out and performs corresponding switching, and then the board body 15 can be removed from the gap 19 Unplug it. The magnetoelectric switch 18 can be directly soldered or fixed to the single-board body 15 by screws, or can be disposed on the panel of the handle bar 13. The magnetoelectric switch 18 can be a magnetic switch or a Hall switch.

In this embodiment, the insertion of the non-contact communication board into the state of insertion or removal is realized by providing a magnet on the wrench, which prolongs the time of system switching, and solves the wrench of the communication board in the prior art. Closing or opening the problem of damage to the micro switch, and reducing the structural accuracy of the wrench, the product yield is high, and since there is no need to open a hole in the board, the electromagnetic compatibility problem is effectively solved and the opening is easy to enter the dust The problem.

In a communication system, a board is generally placed as a physical entity in a chassis. The chassis usually includes a card, an interface module, multiple slots, and multiple boards. Multiple boards are connected to the interface module. The information is exchanged between the board and the external network, and the data is transmitted between the boards. The board is configured with multiple slots. The board is inserted into the slot to connect the board to the board. The machine frame of the present invention refers to a machine frame including a communication board according to the embodiment of the present invention. The wrench of the single board of the machine frame is provided with a magnet, and a magnetic field is disposed at a position corresponding to the magnet on the single board body. The electric switch, the magnetoelectric switch is connected to a switch detecting circuit. If a board needs to be inserted into the board, the wrench is first closed, the switch detection circuit detects the signal of the wrench closing and transmits the signal to the communication system, and the communication system receives the signal of the wrench closing to determine the board. If available, switch the corresponding switch to the board. If a board needs to be removed from the board, open the wrench first. The switch detection circuit detects the wrench open signal and transmits the signal to the communication system. The communication system receives the signal that the wrench is open, and determines that the board is unavailable. Then, the communication system switches the operations performed on the board to the remaining boards in the chassis.

FIG. 7 is a schematic diagram of a first embodiment of a communication board insertion and removal detection system according to the present invention. The switch detection circuit 16 is respectively connected to a magnetoelectric conversion switch 18 and a system switching control circuit module 21, wherein the magnetoelectric conversion switch 16 is a communication board. In the magnetoelectric transfer switch, the switch detecting circuit 16 is configured to detect whether the magnetoelectric transfer switch is closed, and the magnetoelectric transfer switch is turned on or off to be transmitted to the corresponding electrical signal of the switch detecting circuit 16; the system switching control circuit module 21 is configured to The signal of the magnetoelectric switch of the switch detection circuit 16 is switched on/off to switch the operation to the board or switch the operation performed on the board to other boards in the chassis. The working principle of the communication board insertion and removal detection system is: when the board is inserted and then the wrench is closed, the switch detection circuit 16 detects the electrical signal of the magnetoelectric switch 18 and inputs the electric signal to the system switching control circuit. Module 21, the system switching control circuit module 21 switches the corresponding operation to the board; when the wrench opens the board, it is ready to be pulled out from the board When the switch detecting circuit 16 detects the electrical signal that the magnetoelectric switch 18 is turned off and inputs the electrical signal to the system switching control circuit module 21, the system switching control circuit module 21 switches the ongoing operation on the board to the machine. Other boards in the box.

In this embodiment, the switch detection circuit detects the open and closed states of the magnetoelectric transfer switch to determine the insertion and removal states of the board, and prolongs the system switching time.

The communication board and the frame of the embodiment of the present invention may be applied to the communication system, for example, the communication system may include at least a chassis, and the chassis includes a plug-in board, an interface module, and multiple communication boards. The plurality of communication boards are connected to the interface module, and the interface module is configured to complete information exchange between the communication board and the external network and data transmission between the communication boards, where the board is configured. A plurality of slots are used for inserting the communication board. The communication board includes: a single board body, a wrench, and a handle bar. The wrench is provided with a magnet, and the board body or the handle bar is disposed on the board. A magnetoelectric switch is disposed at a position corresponding to the magnet. When the wrench is closed, the magnetoelectric switch is closed, and when the wrench is opened, the magnetoelectric switch is turned on.

It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or some of the technical features are equivalently replaced. The modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

Claim

A communication board, comprising: a single board body, a wrench and a handle bar for assisting the insertion and removal of the communication board, wherein the wrench is provided with a magnet on the single board body or the handle bar A magnetoelectric switch is disposed at a position corresponding to the magnet. When the wrench is closed, the magnetoelectric switch is closed, and when the wrench is opened, the magnetoelectric switch is turned on.

2. The communication board according to claim 1, wherein the magnetoelectric transfer switch is a Hall switch.

3. The communication board according to claim 1, wherein the magnetoelectric switch is a magnetic switch.

The communication board according to claim 1 or 2 or 3, wherein the magnetoelectric transfer switch is welded to the body of the single board.

The communication board according to claim 1 or 2 or 3, wherein the magnetoelectric switch is fixed to the body of the single board by screws.

The communication board according to claim 1 or 2 or 3, wherein the magnetoelectric switch is fixed to the handle bar panel by screws.

A chassis for a communication system, comprising: a plug-in board, an interface module, and a plurality of communication boards, wherein the plurality of communication boards are connected to the interface module, and the interface module is configured to complete the communication board The information exchange between the external network and the data transmission between the communication boards, the board is provided with a plurality of slots for the insertion of the communication board, and the communication board includes: a single board body a wrench and a handle bar for assisting the insertion and removal of the communication board, wherein the wrench is provided with a magnet, and a magnetoelectric transfer switch is disposed at a position corresponding to the magnet on the single body or the handle bar. After the wrench is closed, the magnetoelectric switch is closed, and when the wrench is opened, the magnetoelectric switch is turned on.

The machine frame for a communication system according to claim 7, wherein the magnetoelectric switch is a Hall switch.

9. The machine frame for a communication system according to claim 7, wherein said magnetoelectric conversion The switch is a magnetic switch.

The frame for a communication system according to claim 7 or 8 or 9, wherein the magnetoelectric transfer switch is welded to the body of the single board.

The machine frame for a communication system according to claim 7 or 8 or 9, wherein the magnetoelectric transfer switch is fixed to the body of the single board by screws.

The machine frame for a communication system according to claim 7 or 8 or 9, wherein the magnetoelectric transfer switch is fixed to the handle bar panel by screws.

1 3, a communication board insertion and removal detection system, characterized in that:

Magnetoelectric transfer switch;

The communication board insertion and removal detection system according to claim 13, further comprising: a single board body, a wrench and a handle bar for assisting the insertion and removal of the communication board, wherein the wrench is provided with a magnet The magnetoelectric switch is disposed at a position corresponding to the magnet on the single body or the handle bar. When the wrench is closed, the magnetoelectric switch is closed. When the wrench is opened, The magnetoelectric transfer switch is turned on.

The communication board insertion/detachment detecting system according to claim 14, wherein the magnetoelectric switch is a Hall switch.

The communication board insertion/detachment detecting system according to claim 14, wherein the magnetoelectric switch is a magnetic switch.

A communication system, comprising: at least a chassis, the chassis comprising a card, an interface module, and a plurality of communication boards, wherein the plurality of communication boards are connected to the interface module, the interface The module is configured to complete the information exchange between the communication board and the external network and the data transmission between the communication boards, and the plurality of slots are disposed on the board for inserting the communication board. The communication board includes: a single board body, a wrench and a handle bar, the wrench is provided with a magnet, and a magnetoelectric transfer switch is disposed at a position corresponding to the magnet on the single board body or the handle bar, when After the wrench is closed, the magnetoelectric switch is closed, and when the wrench is opened, the magnetoelectric switch is turned on.

18. The communication system according to claim 17, wherein the magnetoelectric transfer switch is a Hall switch.

19. The communication system according to claim ???, wherein said magnetoelectric switch is a magnetic switch.