CN107704411B - Hot plug control device and network equipment - Google Patents
Hot plug control device and network equipment Download PDFInfo
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- CN107704411B CN107704411B CN201710848440.6A CN201710848440A CN107704411B CN 107704411 B CN107704411 B CN 107704411B CN 201710848440 A CN201710848440 A CN 201710848440A CN 107704411 B CN107704411 B CN 107704411B
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- interface board
- limiting
- clamping structure
- board
- driving
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
- G06F13/4081—Live connection to bus, e.g. hot-plugging
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/38—Universal adapter
- G06F2213/3808—Network interface controller
Abstract
The application discloses a hot plug control device and network equipment. The hot plug control device comprises: a driving part and a limiting part; the limiting part is used for limiting the interface board; the driving part is used for driving the limiting part to limit the interface board according to the received limiting signal so as to limit the interface board from being pulled out of the service board; releasing the limit of the interface board according to the received release signal so as to pull the interface board out of the service board; the limit signal is issued when the interface board is plugged into the network device, and the release signal is issued after the data resource corresponding to the interface board is cleared. According to the method and the device, the hot plug control device is arranged in the network equipment, and the driving part of the hot plug control device is used for controlling the limiting part to limit the interface board, so that the hot plug operation of the interface board is ensured to be safely and effectively carried out.
Description
Technical Field
The present application relates to the field of electromechanical control technologies, and in particular, to a hot plug control device and a network device.
Background
Hot-plugging (Hot-plugging or Hot Swap) is also called Hot plugging, and the Hot-plugging function is to allow a user to take out and replace damaged components such as a hard disk, a power supply or an interface board without closing the system or cutting off the power supply, so as to improve the timely recovery capability, expansibility, flexibility and the like of the system to disasters.
The interface board and the service board are generally connected through a connector of the backplane, some preprocessing needs to be performed in the hot plug process of the interface board, and particularly when the interface board is hot-unplugged, resources need to be released in advance to stop accessing the interface board, so that the service board needs to be notified in advance before the interface board is unplugged or plugged.
At present, hot plug preprocessing is mainly realized in a command line mode, namely, a command line is input to inform a service board before an interface board is pulled out, but for certain environments which cannot use the command line, safe and effective hot plug operation cannot be carried out.
Disclosure of Invention
The application provides a hot plug control device and network equipment to realize the automatic control of the plugging of an interface board and ensure the safe and effective hot plug operation of the interface board.
In order to achieve the purpose, the technical scheme of the application is realized as follows:
on one hand, the application provides a hot plug control device, which is applied to network equipment, wherein the network equipment comprises a service board and an interface board; the device comprises: a driving part and a limiting part;
the limiting part is used for limiting the interface board;
the driving part is used for driving the limiting part to limit the interface board according to the received limiting signal so as to limit the interface board from being pulled out of the service board; releasing the limit of the interface board according to the received release signal so as to pull the interface board out of the service board; the limiting signal is issued when the interface board is plugged into the network equipment, and the release signal is issued after the data resource corresponding to the interface board is removed.
In another aspect, the present application provides a network device, including: service board, interface board and the hot plug control device.
The beneficial effect of this application is: according to the method and the device, the hot plug control device is arranged in the network equipment, the driving part of the hot plug control device is used for receiving the limiting signal and the releasing signal, so that the limiting part is driven to limit or release the limitation on the interface board according to the type of the received signal, the interface board can be pulled out from the service board only after the network equipment clears the data resources corresponding to the interface board, and the hot-pull operation of the interface board is ensured to be safely and effectively carried out.
Drawings
Fig. 1 is a block diagram of a hot plug control device according to an embodiment of the present disclosure;
fig. 2 is a schematic diagram of pins of an interface board connector according to an embodiment of the present application;
fig. 3 is a schematic circuit diagram of a service board sensing interface board connection state according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a hot plug control device applied to a network device according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of another hot plug control device applied to a network device according to an embodiment of the present disclosure;
fig. 6-8 are schematic diagrams illustrating states of changes of the position-limiting end and the blocking body during a hot insertion process of the interface board according to an embodiment of the disclosure;
FIGS. 9-12 are schematic diagrams illustrating states of the stoppers and the baffles during thermal extraction of the interface board according to an embodiment of the disclosure;
fig. 13 is a schematic diagram illustrating a process of limiting the hot-plug operation of the interface board by the mobile locking structure according to an embodiment of the present disclosure;
fig. 14 is a schematic diagram of a process of limiting the hot-plug operation of the interface board by the rotary locking structure according to the embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
Fig. 1 is a block diagram of a hot plug control device according to an embodiment of the present application, where the hot plug control device 30 according to the embodiment of the present application is applied to a network device, the network device includes a service board 10 and an interface board 20, the interface board 20 may be directly plugged into the service board 10 through a connector, or an auxiliary connection mechanism, such as a backplane, may be set on the service board 10, and the interface board 20 is plugged into the service board 10 through the backplane.
As shown in fig. 1, the hot plug control device 30 includes a driving portion 31 and a limiting portion 32, wherein the limiting portion 32 is used for limiting the interface board 20; the driving part 31 is used for driving the limiting part 32 to limit the interface board 20 according to the received limiting signal so as to limit the interface board 20 from being pulled out of the service board 10; the interface board 20 is released from the limit according to the received release signal, so that the interface board is pulled out from the service board 10.
In the embodiment, the network device is provided with the hot plug control device, and the driving part of the hot plug control device is used for receiving the limit signal and the release signal so as to drive the limit part to limit or release the limit of the interface board according to the type of the received signal, so that the interface board can be pulled out from the service board only after the network device clears the data resource corresponding to the interface board, and the hot-pull operation of the interface board is ensured to be safely and effectively performed.
The limit signal in this embodiment is issued when the interface board 20 is plugged into the network device, and the release signal is issued after the data resource corresponding to the interface board 20 is cleared.
The limit signal and the release signal can be issued by a controller of the network device, and the controller centrally controls the insertion/extraction process of each interface board. If the controller sends a limit signal to the driving part 31 of the hot plug control device 30 to limit the interface board 20 from being pulled out of the service board 10 after the interface board 20 is inserted into the service board 10, when the controller senses that the interface board 20 is pulled out of the service board 10, the controller clears the data resource corresponding to the interface board 20 on the controller and controls the service board 10 to clear the data resource corresponding to the interface board on the service board 10, and after the clearing is completed, the controller sends a release signal to the driving part 31 to enable the interface board 20 to be pulled out of the service board 10.
In practical application, the limit signal and the release signal can also be issued by the service board 10 of the network device, and the service board 10 controls the insertion/extraction process of the interface board 20. If the service board 10 senses that the interface board 20 is inserted into the service board 10, the service board 10 sends a limit signal to the driving part 31 to limit the interface board 20 from being pulled out of the service board 10; when the service board 10 senses that the interface board 20 is pulled out from the service board 10, the service board 10 clears the data resource corresponding to the interface board 20 on the service board 10 and notifies the controller of clearing the data resource corresponding to the interface board 20 on the controller, and after the clearing is completed, a release signal is issued to the driving portion 31 so that the interface board 20 can be pulled out from the service board 10.
The data resources in this embodiment include, but are not limited to: the memory resource occupied by the interface board on the controller, the interrupt resource, the timer data and other related data resources, and the MAC table entry and other data resources on the service board.
In one embodiment of the present application, the service board 10 can sense the insertion or extraction state of the interface board 20 in the following manner.
The interface board 20 is connected to the service board 10 through the connector, as shown in fig. 2, the hot-plug signal pin and the common ground pin of the connector of the interface board 20 have the longest pin length, the hot-plug signal pin has the next longest pin length, and the other signal pins have the shortest pin length, that is, the lengths of the hot-plug signal pin and the common ground pin > the length of the hot-plug signal pin > the length of the other signal pins. In the hot insertion process of the interface board, the hot insertion signal pin and the common ground pin are firstly connected with the service board, and in the hot extraction process of the interface board, the hot extraction signal pin is firstly disconnected with the service board. The insertion/extraction state of the interface board can thereby be identified based on the hot-extraction interruption and the level change of the hot-insertion interruption of the hot-extraction signal pin corresponding to the hot-insertion signal pin.
Fig. 3 is a schematic circuit diagram of a service board sensing interface board connection state according to an embodiment of the present disclosure, and as shown in fig. 3, the service board is provided with a hot-plug signal line and a hot-plug signal line, where the hot-plug signal line is provided with a hot-plug interrupt point, and the hot-plug signal line is provided with a hot-plug interrupt point, so that the plug-in and plug-out states of the board card can be identified according to level values of the hot-plug interrupt and the hot-plug interrupt.
If the service board is not plugged in by the interface board, the hot plug interrupt EXT _ INT0 and the hot plug interrupt EXT _ INT1 are initially at high level; referring to fig. 3, when the interface board is inserted, the hot-plug signal pin and the common ground pin are first connected to the service board, and at this time, the hot-plug interrupt EXT _ INT1 is pulled down to a low level, and the level change generates an interrupt notification, and the service board determines that the interface board starts to be inserted into the service board based on the interrupt notification, and after the interface board is inserted into the service board, the hot-plug interrupt EXT _ INT0 is a low level; when the interface board is pulled out from the service board, the hot pull signal pin is firstly disconnected with the service board, the hot pull interrupt EXT _ INT0 is changed from low level to high level, the level change generates an interrupt notification, and the service board judges that the interface board starts to be pulled out based on the interrupt notification.
In one embodiment of the present application, the position limiting portion 32 includes a mobile detent structure; correspondingly, the driving part 31 drives the mobile clamping structure to move to the first position according to the limit signal, and drives the mobile clamping structure to move to the second position according to the release signal; when the mobile clamping structure is located at the first position, the interface board 20 is limited, and when the mobile clamping structure is located at the second position, the limitation on the interface board 20 is released.
In an implementation of this embodiment, the mobile locking structure can limit the interface board in any one of the following first and second manners.
The first method is as follows:
the mobile clamping structure comprises a vertical movable rod and a blocking body, and the driving part 31 comprises a motor; one end of the vertical movable rod close to the baffle body is a limiting end, and the other end of the vertical movable rod is in transmission connection with the motor; the motor drives the limiting end to be located at the first position or the second position through the vertical movable rod, when the limiting end is located at the first position, the blocking body limits the interface board, and when the limiting end is located at the second position, the blocking body releases the limiting of the interface board.
The second method comprises the following steps:
in another implementation of this embodiment, the mobile clamping structure includes a horizontal movable rod, the driving portion 31 includes a motor, one end of the horizontal movable rod is a clamping elastic sheet, the other end of the horizontal movable rod is in transmission connection with the motor, and the motor drives the horizontal movable rod to move horizontally between the first position and the second position; when the horizontal movable rod moves to the first position, the clamping elastic sheet limits the clamping of the interface board, and when the horizontal movable rod moves to the second position, the clamping elastic sheet relieves the clamping limit of the interface board.
The present application takes the limiting manner in the first manner as an example, and describes a limiting process of the interface board by the mobile clamping structure in combination with the schematic structural diagram of the hot plug control device shown in fig. 4. The interface board 20 shown in fig. 4 is plugged into the service board 10 through the backplane 40, the hot plug control device 30 is installed on the backplane 40, a male connector can be arranged on the hot plug control device 30, a corresponding female connector is arranged on the backplane 40, and the hot plug control device 30 is installed by matching the male connector and the female connector, so as to replace the hot plug control device 30. Of course, in practical applications, the hot plug control device 30 may also be fixedly mounted on the backplane 1.
Referring to fig. 4, the housing of the hot-plug control device 30 encloses a cavity in which the motor 3201, the vertical movable rod 3202, and the stopper 3204 are installed; the motor 3201 is in transmission connection with one end of the vertical movable rod 3202, when in practical application, a gear can be externally connected to the motor 3201, a rack meshed with the gear is arranged on the vertical movable rod 3202, and the vertical movable rod 3202 is in transmission connection with the motor 3201 through the mutually meshed gear and rack; the other end of the vertical movable rod 3202 is provided with a limiting end 3203, and the limiting end 3203 is driven by the motor 3201 to be in the first position or the second position. Wherein vertical refers to the vertical direction as viewed from the top view shown in fig. 4.
As shown in fig. 4, the blocking body 3204 may be a spherical blocking body having a first elastic structure 3205, the spherical blocking body is clamped at the opening of the housing by the first elastic structure 3205, and the exposed portion of the blocking body 3204 exposed out of the opening of the housing is changed by an external force and the first elastic structure 3203 and 3205, that is, when the exposed portion of the blocking body 3204 exposed out of the opening of the housing is increased, the exposed portion of the blocking body 3204 is engaged with the blocking body 21 on the interface board 20 to limit the interface board 20, and when the exposed portion of the blocking body 3204 exposed out of the opening of the housing is decreased, the limit of the blocking body 3204 on the interface board 20 is released.
This implementation also includes auxiliary structures for supporting the stops 3204. As shown in fig. 4, the auxiliary structure includes a second elastic structure 3207 and a supporting end 3206, the second elastic structure 3207 presses the supporting end 3206 inside the cavity and brings the supporting end 3206 into contact with the stopper 3204 to support the stopper 3204 in a vertical direction, ensuring that the stopper 3204 is stably inserted into the opening of the housing.
It should be noted that fig. 4 only illustrates the limiting end 3203, the blocking body 3204, and the supporting end 3206 as spherical shapes, and other shapes can be set in practical applications; fig. 4 only illustrates the components of the hot plug control device 30 necessary for performing a limit blocking on the interface board 20, and in a specific implementation, corresponding components, such as a power supply, a motor control circuit, and the like, may be added according to requirements, which is not limited in this embodiment.
In order to explain the process of limiting the interface board by the mobile locking structure in detail, this embodiment is specifically described with reference to fig. 6 to 8 and fig. 13. Fig. 6 to 8 are schematic diagrams illustrating the changing states of the limiting end and the blocking body during the hot insertion process of the interface board according to the embodiment of the present application, and fig. 13 is a schematic diagram illustrating a limiting process of the mobile locking structure for the hot insertion operation of the interface board according to the embodiment of the present application, as shown in fig. 13, the limiting process for the hot insertion operation of the interface board according to the embodiment of the present application is as follows:
s1310, the blocking body 21 contacts with the blocking body when the interface board 20 is just inserted into the service board 10.
In this embodiment, for example, when the service board 10 senses that the interface board 20 is not plugged in the service board 10, the limiting part 32 is controlled to be in a non-limiting state, at this time, the network device does not issue a limiting information number or a release signal to the driving part 31, and the limiting part 32 does not limit the interface board 20. Referring to fig. 6, the limiting end 3203 of the vertical movable rod 3202 is in the second position, and the stopper 3204 does not block the body 21, i.e., does not limit the interface board 20.
S1320, when the interface board 20 is half inserted into the service board 10, the stopper 21 slides into the card slot through the stopper 3204.
The half-insertion service board 10 of the interface board of the present embodiment can be understood as: when the maximum blocking position of the blocking body 21 passes through the blocking body 3204, the interface board 20 is half inserted into the service board 10; referring to fig. 7, the stopper 21 of the interface board 20 presses the stopper 3204, and the stopper 3204 does not perform a limit stopper on the interface board 20, so that the interface board 20 can slide into the card slot through the stopper 3204.
When the interface board 20 is just inserted or half-inserted into the service board 10, the limiting end 3203 of the vertical movable rod 3202 is in the second position, and does not limit and block the interface board 20, so that the interface board 20 can be smoothly inserted into the card slot and connected to the service board 10.
S1330, when the interface board 20 is completely inserted into the service board 10, the block 3204 is in a limiting state.
When the interface board 20 is sensed to be inserted into the service board 10, the controller of the network device or the service board 10 sends a limit signal to the driving portion 31, and controls the motor 3201 to rotate in the reverse direction, so that the limit end 3203 of the vertical movable rod 3202 is in the first position, the stopper 3204 is in a limit state, the interface board 20 is limited in the card slot at a position where the hot-extraction signal pins of the connector can be disconnected from the back plate 40, and the other signal pins are not disconnected from the back plate 40. In this case, the stop 3204 can provide the functions of the fixed interface board 20 and the limiting interface board 20.
Fig. 9 to 12 are schematic diagrams illustrating a variation state of the limiting end and the blocking body during a hot-plug operation of the interface board according to an embodiment of the present application, and fig. 14 is a schematic diagram illustrating a limiting process of the mobile locking structure for a hot-plug operation of the interface board according to an embodiment of the present application, as shown in fig. 14, the limiting process for the hot-plug operation of the interface board according to the present embodiment is as follows:
s1410, when the interface board 20 is just pulled out from the service board 10, the block 3204 fixes and limits the interface board 20.
Referring to fig. 9, the motor 3201 still controls the limiting end 3203 of the vertical movable rod 3202 to be in the first position, and the stopper 3204 can be pressed back only by a certain amount under the action of external force, and the retracted amount ensures that the state of being pulled out to the maximum extent is: the hot-plug signal pin of the interface board connector can be disconnected from the backplane 40, and the other signal pins are not disconnected from the backplane 40, and wait for clearing the resource data corresponding to the interface board 20.
S1420, when the interface board 20 half-pulls out the service board 10, the block 3204 limits the interface board 20.
When the interface board of the present embodiment is half-pulled out, it can be understood that: the interface board 20 half pulls out the service board 10 when the maximum blocking position of the blocking body 21 is limited by the blocking body 3204.
Referring to fig. 10, the limiting end 3203 of the vertical movable rod 3202 is still in the first position, and at this time, the blocking body 3204 is maximally pressed and retracted into the cavity under the action of an external force, the blocking body 3204 blocks the blocking body 21, so that the interface board 20 is limited and cannot be continuously pulled out of the service board 10, and at this time, the interface board is limited in a position where the hot-pull signal pins of the connector are disconnected from the back plate 40, and other signal pins are not disconnected from the back plate 40.
S1430, the data resource corresponding to the interface board 20 is cleared.
When the controller of the network device senses that the interface board 20 is pulled out of the service board 10, the controller clears the data resource corresponding to the interface board 20 on the controller, and controls the service board 10 to clear the data resource corresponding to the interface board on the service board 10; or, when the service board 10 senses that the interface board 20 is pulled out from the service board 10, the service board 10 clears the data resource corresponding to the interface board 20 on the service board 10, and notifies the controller of clearing the data resource corresponding to the interface board 20 on the controller.
S1440, after the data resource is cleared, the block 3204 releases the limit block on the interface board.
After the data resource is cleared, the controller or the service board 10 sends a release signal to the driving unit 31 to control the motor 3201 to rotate in the forward direction, so that the limiting end 3203 of the vertical movable rod 3202 is located at the second position, and the stopper 3204 is released from limiting, thereby ensuring that the interface board 20 can be pulled out continuously.
Referring to fig. 11, the motor 3201 rotates in a forward direction, the limiting end 3203 of the vertical movable rod 3202 is in a second position, and the stopper 3204 continues to be pressed back by an external force, and the stopper 21 passes through the stopper 3204.
S1450, the interface board 20 is completely pulled out from the service board 10, and the stopper 3204 is in the non-limiting state.
As shown in fig. 12, when the interface board 20 is completely pulled out from the service board 10, the motor 3201 still controls the limiting end 3203 to be in the second position, and the blocking body 3204 is in the non-limiting state, so as to ensure that the interface board 20 can be smoothly inserted into the service board 10.
In another embodiment of the present application, the position-limiting portion 32 includes a rotational detent structure; at this time, the driving part 31 drives the rotary clamping structure to rotate by a first set angle according to the limit signal, and drives the rotary clamping structure to rotate by a second set angle according to the release signal; when the rotary clamping structure rotates for a first set angle, the interface board 20 is limited, and when the rotary clamping structure rotates for a second set angle, the limit of the interface board 20 is removed.
Specifically, the rotary clamping structure comprises a rotating shaft, a blocking body and an electromagnetic piece arranged on the blocking body, and the driving part 31 comprises a power supply control circuit and an electromagnet; the power supply control circuit controls the power supply mode of the power supply for supplying power to the electromagnet; the electromagnet adsorbs the electromagnetic part according to the power supply mode, and the driving blocking body rotates a first set angle or a second set angle around the rotating shaft.
Referring to fig. 5, a housing of the hot-plug control device 30 encloses a cavity, and the spindle 3211, the blocking body 3212, the electromagnetic element 3213, and the electromagnet 3214 are installed in the cavity; the power supply control circuit supplies power to the electromagnet 3214 in a first power supply mode according to the received limit signal, the electromagnet 3214 drives the blocking body 3212 to rotate by a first set angle by attracting the electromagnetic piece 3213, and the blocking body 3212 is matched with the blocking body 22 of the interface board 20 to limit the interface board 20; the power supply control circuit supplies power to the electromagnet 3214 in a second power supply manner according to the received release signal, the electromagnet 3214 drives the stopper 3212 to rotate by a second set angle by attracting the electromagnet 3213, and the stopper 3212 releases the limit on the interface board 20 and cancels the limit on the interface board 20. The first power supply mode and the second power supply mode mainly adopt different frequencies and amplitudes of alternating current.
It should be noted that: the blocking body 3212 shown in fig. 5 is a triangular body, and in practical applications, other blocking bodies may be used, which is not particularly limited in the present application.
In practical application, when the limiting part 32 includes the rotary clamping structure, the driving part 31 can also drive the rotary clamping structure to stop rotating according to the limiting signal, and drive the rotary clamping structure to rotate according to the release signal; when the rotation locking structure stops rotating, the interface board 20 is limited, and when the rotation locking structure rotates, the limitation of the interface board 20 is released.
Specifically, the rotary clamping structure includes a gear, and the interface board 20 is provided with a rack engaged with the gear; the driving section 31 includes a motor; the motor controls the rotation mode of the gear, and when the gear stops rotating, the gear and the rack limit the interface board 20; when the gear rotates, the gear is meshed with the rack, and the limit of the interface board is released.
The process of limiting the interface board by the rotation blocking structure of this embodiment is similar to the process of limiting the moving blocking structure shown in fig. 4, and is not described herein again.
An embodiment of the present application further provides a network device, as shown in fig. 1, the network device includes: a service board 10, an interface board 20 and the hot plug control device 30.
Referring to fig. 4 and 5, the interface board 20 of the present embodiment is provided with a blocking body, the present embodiment does not limit the position of the blocking body on the interface board and the installation manner of the blocking body 22 on the interface board, and the shape of the blocking body may be designed according to the shape of the blocking body, which is not limited in the present embodiment.
In practical application, a group of hot plug control devices 30 may be respectively disposed on two sides of the service board 10 corresponding to the insertion or extraction direction of the interface board 20, so as to enhance the reliability of limiting the interface board.
The embodiments of the apparatuses described in this embodiment are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may also be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (5)
1. A hot plug control device is characterized in that the device is applied to network equipment, and the network equipment comprises a service board and an interface board; the device comprises: a driving part and a limiting part;
the limiting part is used for limiting the interface board;
the driving part is used for driving the limiting part to limit the interface board according to the received limiting signal so as to limit the interface board from being pulled out of the service board; releasing the limit of the interface board according to the received release signal so as to pull the interface board out of the service board; the limiting signal is issued when the interface board is plugged into the network equipment, and the releasing signal is issued after the data resource corresponding to the interface board is removed;
the limiting part comprises a movable clamping structure, a first rotary clamping structure or a second rotary clamping structure;
when the limiting part comprises a mobile clamping structure, the driving part is used for driving the mobile clamping structure to move to a first position according to the limiting signal and driving the mobile clamping structure to move to a second position according to the releasing signal; when the mobile clamping structure is positioned at the first position, the interface board is limited, and when the mobile clamping structure is positioned at the second position, the limitation on the interface board is removed;
when the limiting part comprises a first rotary clamping structure, the driving part is used for driving the first rotary clamping structure to rotate by a first set angle according to the limiting signal and driving the first rotary clamping structure to rotate by a second set angle according to the releasing signal; when the first rotary clamping structure rotates by a first set angle, the interface board is limited, and when the first rotary clamping structure rotates by a second set angle, the limitation on the interface board is removed;
when the limiting part comprises a second rotary clamping structure, the driving part is used for driving the second rotary clamping structure to stop rotating according to the limiting signal and driving the second rotary clamping structure to rotate according to the releasing signal; when the second rotary clamping structure stops rotating, the interface board is limited, and when the second rotary clamping structure rotates, the limitation on the interface board is removed;
the mobile clamping structure comprises a vertical movable rod and a blocking body, and the driving part comprises a motor;
one end of the vertical movable rod, which is close to the blocking body, is a limiting end, and the other end of the vertical movable rod is in transmission connection with the motor;
the motor drives the limiting end to be located at a first position or a second position through the vertical movable rod, when the limiting end is located at the first position, the blocking body limits the interface board, and when the limiting end is located at the second position, the blocking body releases the limiting of the interface board.
2. The hot plug control device according to claim 1, wherein the first rotary detent structure comprises a spindle, a blocking body and an electromagnetic member disposed on the blocking body, and the driving part comprises a power supply control circuit and an electromagnet;
the power supply control circuit is used for controlling a power supply mode of the power supply to the electromagnet;
the electromagnet is used for adsorbing the electromagnetic piece according to the power supply mode and driving the blocking body to rotate for a first set angle or a second set angle around the rotating shaft.
3. The hot plug control device according to claim 1, wherein the second rotational detent structure comprises a gear, and a rack engaged with the gear is disposed on the interface board; the driving part comprises a motor;
the motor is used for controlling the rotation mode of the gear, and when the gear stops rotating, the gear and the rack limit the interface board; when the gear rotates, the gear is meshed with the rack, and the limit of the interface board is released.
4. A network device, characterized in that the network device comprises: a service board, an interface board and a hot plug control device according to any of claims 1-3.
5. The network device according to claim 4, wherein a group of the hot plug control devices is respectively disposed on two sides of the service board corresponding to the direction of inserting or pulling out the interface board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710848440.6A CN107704411B (en) | 2017-09-19 | 2017-09-19 | Hot plug control device and network equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710848440.6A CN107704411B (en) | 2017-09-19 | 2017-09-19 | Hot plug control device and network equipment |
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| CN107704411A CN107704411A (en) | 2018-02-16 |
| CN107704411B true CN107704411B (en) | 2020-11-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109471501A (en) * | 2018-09-30 | 2019-03-15 | 天津市英贝特航天科技有限公司 | A kind of mainboard hot plug server |
| CN111400227A (en) * | 2020-03-12 | 2020-07-10 | 苏州浪潮智能科技有限公司 | Hot plug method, device, equipment and storage medium of PCIE network card |
| CN111857246B (en) * | 2020-06-30 | 2022-03-22 | 浪潮电子信息产业股份有限公司 | Switching device of OCP network card and server |
| CN115033512A (en) * | 2022-04-29 | 2022-09-09 | 浙江华锐捷技术有限公司 | Method for preventing hard disk from hot plug, vehicle-mounted monitoring system and computer storage medium |
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| CN100550783C (en) * | 2003-09-29 | 2009-10-14 | 华为技术有限公司 | The detection of hot plug and processing method |
| CN104679167A (en) * | 2013-11-29 | 2015-06-03 | 昆达电脑科技(昆山)有限公司 | Tray structure of blade server |
| US9456519B2 (en) * | 2013-12-23 | 2016-09-27 | Dell Products, L.P. | Single unit height storage sled with lateral storage device assembly supporting hot-removal of storage devices and slidable insertion and extraction from an information handling system rack |
| CN105630094A (en) * | 2014-10-30 | 2016-06-01 | 阿里巴巴集团控股有限公司 | Server chassis and hot plug control method of fan |
| CN104866385B (en) * | 2015-06-09 | 2017-11-17 | 广东欧珀移动通信有限公司 | Mobile terminal and its storage card hot plug method |
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