CN210042003U - Video controller array - Google Patents

Abstract

The application relates to a video controller array, which comprises a case, a main control module, a plug-in bottom plate and at least one sub-controller, wherein the case is of a hollow structure and is internally provided with a cavity; the main control module is arranged in the cavity and comprises a power interface and a network interface, the power interface is used for getting electricity, and the network interface is used for connecting to a video source end and/or an LED display screen; the plug-in bottom plate is connected with the main control module and establishes data connection with the main control module, and a connector is arranged on the plug-in bottom plate; the sub-controller is connected with the plugging base plate through the connector and is in hot plug connection with the plugging base plate, and the sub-controller and the plugging base plate realize data transmission through the connector. Each sub-controller is connected to the main control board through the grafting bottom plate, realizes the hot plug between sub-controller and the grafting bottom plate, when breaking down, directly extracts the sub-controller, and a replacement sub-controller can, need not to carry out the grafting action of cable, and the time that needs is shorter.

Description

Video controller array

Technical Field

The present application relates to the field of video controllers, and more particularly, to a video controller array.

Background

The traditional video controller has fixed loading capacity, an ultra-large display screen is often needed in occasions such as a traffic command center, and at the moment, a single video controller can not meet the requirement, and several, dozens or even hundreds of video controllers are needed to be cascaded to jointly complete the loading of ultra-large pictures. However, the video controller is inevitably in failure during operation, and when the failure occurs, the video controller needs to be repaired or replaced. The direct replacement of the video controller is a simple method, the influence on a display picture can be reduced as much as possible, and the consumed time is short. However, the video controller is connected with at least a power cable and two cascade cables, the cables are complex in connection, and in the actual replacement process, a long time is still needed, namely, tens of minutes is less, and half an hour is more, which is obviously unacceptable for a command center and the like.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide a video controller array for solving the problems of more cables and longer maintenance time in the conventional video controller cascading scheme.

A video controller array comprises a case, a main control module, a plug-in bottom plate and at least one sub-controller,

the case is of a hollow structure and is internally provided with a cavity;

the main control module is arranged in the cavity and comprises a power supply interface and a network interface, the power supply interface is used for getting electricity, and the network interface is used for being connected to a video source end and/or an LED display screen;

the plug-in bottom plate is connected with the main control module and establishes data connection with the main control module, and a connector is arranged on the plug-in bottom plate;

the sub-controller is connected with the plug-in bottom plate through the connector and is in hot plug connection with the plug-in bottom plate, and the sub-controller and the plug-in bottom plate realize data transmission through the connector.

In one embodiment, the case includes a partition plate, the partition plate is disposed in the cavity to partition the cavity into a plurality of mounting slots, the insertion base plate is disposed corresponding to the mounting slots, the sub-controller is fixedly mounted in the mounting slots, and the mounting slots are communicated with the outside.

In one embodiment, the chassis further includes a front baffle, a rear baffle and side plates, the front baffle and the rear baffle are disposed opposite to each other and fixed to each other through the side plates, the front baffle, the rear baffle and the side plates surround to form the cavity, two sides of the partition are respectively connected to the two side plates, a preset distance is formed between one end of the partition close to the front baffle and the front baffle, a wiring channel is formed between the partition and the chassis, and the mounting groove is communicated with the wiring channel.

In one embodiment, the insertion base plate is disposed at one end of the mounting groove close to the routing channel and is fixedly connected to the chassis.

In one embodiment, the plugging base plate is provided with a hot plug circuit, so that the sub-controller is powered on after being plugged into the plugging base plate, and the corresponding circuit is disconnected after the sub-controller is unplugged;

the hot plug circuit comprises a switch unit and a power supply on-off control unit, wherein the switch unit receives an electrifying control signal, converts the electrifying control signal into an on-off signal and outputs the on-off signal to the power supply on-off control unit, and the power supply on-off control unit controls the power supply of the connector on the plugging bottom plate according to the on-off signal so as to control the power supply on-off of the sub-controller plugged on the connector.

In one embodiment, the switch unit includes a signal input interface EN, a first fet Q1, a second fet Q2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, a gate of the first fet Q1 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the signal input interface EN, the other end of the second resistor R2 is connected to the first resistor R1 and is grounded through the first resistor R1, a drain of the first fet Q1 is connected to one end of the third resistor R3, the other end of the third resistor R3 is connected to a high level, and a source of the first fet Q1 is grounded; the grid electrode of the second field-effect tube Q2 is connected to the common connection point of the third resistor R3 and the first field-effect tube Q1 and is grounded through the fourth resistor R4, the drain electrode of the second field-effect tube Q2 is connected to the power on-off control unit and is used for outputting an on-off signal to the power on-off control unit, and the source electrode of the second field-effect tube Q2 is grounded;

the power supply on-off control unit comprises a controller U1 and a power supply circuit switch tube Q3, wherein the controller U1 is connected to the drain electrode of the second field effect tube Q2, receives an on-off signal output by the drain electrode of the second field effect tube Q2, converts the on-off signal into a corresponding control signal through conversion processing, and outputs the control signal to the power supply circuit switch tube Q3; the power line switching transistor Q3 has a control terminal and two line terminals, which are connected to the power supply Vpower and the power supply output terminal Vout, respectively, the power supply output terminal Vout being connected to the connector.

In one embodiment, the main control module includes a main control board and a switch board, the power interface and the network interface are both connected to the main control board, the plug-in bottom board is connected to the main control board and the power interface, acquires a network signal from the main control board, and gets power from the power interface, and the main control board is connected to a video source end and/or an LED display screen through the network interface;

the adapter plate is connected with the main control board, the plug-in bottom plate is connected with the adapter plate, and under the coordination of the main control board, a plurality of sub-controllers are mutually matched to complete the on-load work of the picture.

In one embodiment, the sub-controllers back up each other.

In one embodiment, the sub-controller comprises a shell and a fastener, the fastener is arranged on the shell, an inner cavity is arranged in the shell and used for distributing electronic components, a through hole is arranged on the shell, and the inner cavity is communicated with the cavity through the through hole;

the buckle piece is arranged on the inner side wall of the shell, one end of the buckle piece is fixedly connected to the shell, the other end of the buckle piece is a free end, a protruding buckle is arranged on the buckle piece, the protruding buckle corresponds to the through hole, and at least part of the protruding buckle penetrates through the through hole and is exposed out of the shell;

the chassis is provided with a through hole corresponding to the protruding buckle, at least part of the protruding buckle is contained in the through hole, and the free end of the buckle piece can move relative to the shell when stressed, so that the protruding buckle is completely contained in the through hole.

In one embodiment, the shell is further provided with a through hole, the through hole and the through hole are located on different end surfaces of the shell, and the free end of the fastener at least partially penetrates through the through hole and is exposed out of the shell;

the free end comprises a first plane part and a second plane part, the first plane part is fixedly connected with the second plane part, a preset included angle is formed between the first plane part and the second plane part, and a notch is formed in the first plane part corresponding to the through hole, so that the through hole is L-shaped.

The video controller array comprises a main control module, a power interface and a network interface, wherein the power interface and the network interface are arranged on the main control module, a sub-controller actually carrying out loading is connected to the main control module through a plug-in bottom plate, power is taken from the main control module and signals are taken, the sub-controller is not directly connected with an LED display screen or other sub-controllers carried by the main control module through a cable, but is only connected with the plug-in bottom plate, and is connected with the main control module through the plug-in bottom plate. And the sub-controller is connected with the plugging base plate through the connector in a hot plug mode, so that maintenance in use can be realized, and the maintenance time is further reduced.

Drawings

FIG. 1 is a schematic diagram of a video controller array according to an embodiment of the present application;

FIG. 2 is a schematic diagram of another side of a video controller array according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an internal structure of a video controller array according to an embodiment of the present application;

FIG. 4 is a partial enlarged view of portion B of FIG. 3;

fig. 5 is a schematic structural diagram of a main control module of a video controller array according to an embodiment of the present application;

FIG. 6 is a block diagram of a video controller array according to an embodiment of the present application;

FIG. 7 is a hot plug circuit diagram of a video controller array according to an embodiment of the present application;

FIG. 8 is a schematic diagram of a sub-controller of a video controller array according to an embodiment of the present application;

FIG. 9 is an exploded view of a portion of a sub-controller of a video controller array according to an embodiment of the present application;

FIG. 10 is an exploded view of a portion of a video controller array chassis according to an embodiment of the present application;

fig. 11 is a partial enlarged view of portion C of fig. 10;

FIG. 12 is a schematic diagram illustrating a partial structure of a sub-controller of a video controller array according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a fastener of a sub-controller of a video controller array according to an embodiment of the present application.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are given in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

According to the video controller array of each embodiment of the application, each sub-controller is connected to the main control board through the plugging bottom plate, hot plugging is achieved between the sub-controllers and the plugging bottom plate, when a fault occurs, the sub-controllers are directly pulled out, one sub-controller is replaced, plugging action of cables is not needed, and needed time is short.

The video controller array of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

Referring to fig. 1 to 4, the schematic structural diagram of a video controller array 10 according to an embodiment of the present application is exemplarily shown, where the video controller array 10 may include a chassis 110, a main control module 120, a plug-in bottom plate 130, and at least one sub-controller 140, the chassis 110 is a hollow structure and is provided with a cavity therein, the main control module 120 is disposed in the cavity and includes a power interface 121 and a network interface 123, the power interface 121 is used for obtaining power, and the network interface 123 is used for connecting to a video source end and/or an LED display screen; the plug-in bottom plate 130 is connected to the main control module 120 and establishes data connection with the main control module 120, and a connector 131 is arranged on the plug-in bottom plate 130; the sub-controller 140 is connected to the plugging base plate 130 through the connector 131 and is connected to the plugging base plate 130 in a hot plug manner, and the sub-controller 140 and the plugging base plate 130 realize data transmission through the connector 131.

Through setting up power source 121 and network interface 123 on host system 120, the sub-controller 140 that actually carries out the area and carry is connected to host system 120 through grafting bottom plate 130, get the electricity and get the signal from host system 120, sub-controller 140 itself does not directly carry out the cable interconnection with the LED display screen that carries or other sub-controllers 140, but just be connected with grafting bottom plate 130, rethread grafting bottom plate 130 is connected with host system 120, because the electricity of fetching data and power end to the video source end has been accomplished by host system 120, therefore, when changing sub-controller 140, need not to carry out the plug of cable, as long as carry out solitary change can, the demolition of cable has been reduced, the assemble duration, the required time of maintenance has significantly reduced. And then the sub-controller 140 and the plugging base plate 130 are connected in a hot plug way through the connector 131, so that maintenance in use can be realized, and the maintenance time is further reduced.

Referring to fig. 2 to 4, the chassis 110 may include a partition 111, the partition 111 is disposed in the cavity to partition the cavity into a plurality of mounting grooves 110a, the inserting base plate 130 is disposed corresponding to the mounting grooves 110a, the sub-controllers 140 are fixedly assembled in the mounting grooves 110a, the mounting grooves 110a are communicated with the outside, each sub-controller 140 may be individually inserted into and pulled out of the corresponding mounting groove 110a, thereby facilitating the installation and detachment of the sub-controllers 140, and simultaneously, preventing the sub-controllers 140 from affecting other sub-controllers 140 during the insertion and pulling.

In a specific embodiment, the chassis 110 may further include a front baffle 112, a rear baffle 113 and side plates 114, the front baffle 112 and the rear baffle 113 are disposed opposite to each other and fixed to each other through the side plates 114, so that a cavity is defined by the front baffle 112, the rear baffle 113 and the side plates 114, two sides of the partition 111 are respectively connected to the two side plates 114, a preset distance is provided between one end of the partition 111 close to the front baffle 112 and the front baffle 112, or a preset distance is provided between one end of the partition 111 close to the rear baffle 113 and the rear baffle 113, so that a wiring channel 110b is formed between the partition 111 and the chassis 110, and the mounting groove 110a is communicated with the wiring channel 110 b. For example, in the embodiment shown in fig. 3, a predetermined distance is formed between one end of the partition 111 close to the front baffle 112 and the front baffle 112 to form the routing channel 110b, so that the cable connection between the main control module 120 and each sub-controller 140 can be performed through the routing channel 110b, which facilitates the routing and allows the routing to be concealed without being exposed, and facilitates the heat dissipation of the sub-controllers 140.

Two parallel partition boards 111 may also be connected by the partition board 111, for example, in the embodiment shown in fig. 3, the plurality of parallel partition boards 111 partition the cavity to form a plurality of parallel spaces, the main control module 120 is disposed in the parallel space at the bottom of the chassis 110, the sub-controllers 140 are disposed in the parallel spaces above the main control module, the parallel spaces above the main control module are further partitioned by the partition boards 111 to form two installation slots 110a, and one sub-controller 140 may be assembled and fixed in each installation slot 110 a. It is understood that the sub-controllers 140 may or may not be mounted in the mounting slot 110a, and in particular, the sub-controllers 140 may be mounted dynamically according to the loading capacity required by the video controller array 10.

Referring to fig. 5 and 6, the main control module 120 further includes a main control board 125, the power interface 121 and the network interface 123 are both connected to the main control board 125, and the socket board 130 is connected to the main control board 125 and the power interface 121, and obtains a network signal from the main control board 125 and obtains power from the power interface 121, for example, in the embodiment shown in fig. 6, after the power interface 121 obtains power, voltage is reduced through a terminal row, 220V ac power is converted into 48V dc power, and the dc power is provided to the main control board 125 and each socket board 130. The main control board 125 is connected to a video source terminal or an LED display screen through the network interface 123, and under the coordination of the main control board 125, the plurality of sub-controllers 140 cooperate with each other to complete the loading work of the picture.

In some embodiments, the main control module 120 may further include an adapter board 127, the adapter board 127 is connected to the main control board 125, and the plug base 130 is connected to the adapter board 127. Therefore, only the adapter board 127 is required to provide a plurality of adapter ports, and the main control board 125 can be connected to a plurality of plug-in base boards 130 through the adapter board 127 and further connected to a plurality of sub-controllers 140 so as to coordinate the on-load operation of the plurality of sub-controllers 140. By providing the adapter board 127, the number of interfaces provided by the main control board 125 can be reduced, thereby facilitating the circuit design of the main control board 125. When the patch panel 127 is provided, the power interface 121 and the network interface 123 may be connected to the main control panel 125 through the patch panel 127.

Referring to fig. 3 and 4, the socket base 130 is disposed corresponding to the mounting groove 110a and is fixedly connected to the chassis 110, for example, the socket base 130 may be directly disposed in the mounting groove 110a, and each mounting groove 110a may be correspondingly disposed with one socket base 130 to correspond to the sub-controller 140 mounted in the mounting groove 110 a. In the embodiment shown in fig. 3, the plug base 130 is disposed at one end of the mounting groove 110a close to the routing channel 110b and is fixedly connected to the chassis 110.

A plurality of sub-controllers 140 may share a docking backplane 130. For example, in the embodiment shown in fig. 3, a plurality of parallel partitions 111 partition the cavity to form a plurality of parallel spaces, each parallel space is partitioned again to form two mounting slots 110a, and two sub-controllers 140 in the same parallel space share one plug base 130. Illustratively, the docking base 130 is provided with one connector 131 corresponding to each of the two mounting slots 110a, and the two sub-controllers 140 are respectively docked to the connectors 131. By sharing the plugging base plate 130, the two sub-controllers 140 can share part of the circuits on the plugging base plate 130, which is beneficial to reducing the cost of the circuits, and meanwhile, the area of the plugging base plate 130 can be larger by sharing the plugging base plate 130, which is beneficial to the circuit design on the plugging base plate 130. It is understood that when there are more than two mounting grooves 110a per each parallel space, the more than two mounting grooves 110a may share one insertion base plate 130. In other embodiments, the mounting slots 110a with different parallel spaces may also share the socket base 130.

The plug base plate 130 may be provided with a power adapter (not shown) and a network adapter (not shown), the power adapter is connected to the terminal strip and receives power from the power interface 121 through the terminal strip, the plug base plate 130 is connected to the main control board 125 through the network adapter so as to establish data connection with the main control board 125, and the main control board 125 obtains data from the video source through the network interface 123. The sub-controller 140 may be provided with a plug (not shown) corresponding to the connector 131, the plug and the connector 131 are matched with each other to plug and realize data transmission, and the sub-controller 140 realizes hot plugging with the connector 131 on the plugging base plate 130 through the plug.

The plugging base plate 130 is provided with a hot plug circuit 133 to power on the sub-controller 140 after the sub-controller 140 is plugged into the plugging base plate 130, and to disconnect the corresponding circuit after the sub-controller 140 is unplugged.

Referring to fig. 7, the hot plug circuit 133 may include a switch unit 1331 and a power on/off control unit 1333, where the switch unit 1331 receives the power-on control signal, converts the power-on control signal into an on/off signal, and outputs the on/off signal to the power on/off control unit 1333, and the power on/off control unit 1333 controls power supply to the connector 131 on the plug board according to the on/off signal, so as to control power on/off of the sub-controller 140 plugged into the connector 131.

The switch unit 1331 may include a signal input interface EN, a first field effect transistor Q1, a second field effect transistor Q2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, wherein a gate of the first field effect transistor Q1 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the signal input interface EN, the other end of the second resistor R2 is connected to the first resistor R1 and is grounded through the first resistor R1, a drain of the first field effect transistor Q1 is connected to one end of the third resistor R3, the other end of the third resistor R3 is connected to a high level, and a source of the first field effect transistor Q1 is grounded; the gate of the second fet Q2 is connected to the common connection point of the third resistor R3 and the first fet Q1, and is grounded through the fourth resistor R4, the drain of the second fet Q2 is connected to the power on/off control unit 1333, and is configured to output an on/off signal to the power on/off control unit 1333, and the source of the second fet Q2 is grounded.

The power on-off control unit 1333 comprises a controller U1 and a power line switch tube Q3, wherein the controller U1 is connected to the drain of the second field effect tube Q2, receives an on-off signal output by the drain of the second field effect tube Q2, converts the on-off signal into a corresponding control signal after conversion processing, and outputs the control signal to the power line switch tube Q3; the power line switching transistor Q3 has a control terminal and two line terminals connected to the power supply Vpower and the power supply output terminal Vout, respectively, the power supply output terminal Vout being connected to the connector 131.

Specifically, the controller U1 at least includes an on-off signal input pin UVLO/EN, a control signal pin GATE, a power supply pin Vin, and a ground pin GND, where the on-off signal input pin UVLO/EN receives an on-off signal and the control signal pin GATE outputs a control signal.

In a specific embodiment, the signal input interface EN acquires a high level signal or a low level signal, and controls on/off of the first field effect transistor Q1 and the second field effect transistor Q2, so that output of an on/off signal is realized. For example, when the signal input interface EN receives a low level signal, the first fet Q1 is turned off, the current passing through the third resistor R3 flows through the fourth resistor R4, the fourth resistor R4 is configured with a suitable resistance, the gate of the second fet Q2 has a voltage, and turns on the second fet Q2, the switch unit 1331 outputs a low level to the power on-off control unit 1333, the voltage of the on-off signal input pin UVLO/EN of the controller U1 is pulled down to 0.2V to 0.3V, the controller U1 does not work, the power line switch tube Q3 is turned off, and the power output terminal Vout has no power output. When the signal input interface EN receives a high-level signal, the first fet Q1 is turned on, the current flowing through the third resistor R3 flows through the first fet Q1, no current flows through the fourth resistor, no voltage is present at the GATE of the second fet Q2, the second fet Q2 is turned off, the R5, R6, R7, and R8 are configured with appropriate resistance values, the on-off signal input pin UVLO/EN of the controller area U1 is turned on, the control signal pin GATE outputs a high level to the power line switch Q3, and the power line switch Q3 is turned on to connect the power line between the power supply Vpower and the component power output terminal Vout.

It is understood that a detection switch (not shown) may be disposed on the docking bay 130 to detect whether the sub-controller 140 is plugged into the connector 131, and send a low level signal or a high level signal to the signal input interface EN by sensing the detection switch. For example, a tact switch may be disposed on the connector 131, and when the sub-controller 140 is inserted into the connector 131 on the plug base 130 from the installation slot 110a, the tact switch is touched, and the tact switch feeds back a high-level signal to the signal input interface EN, otherwise, feeds back a low-level signal.

In one or more embodiments, the sub-controllers 140 are backed up with each other, that is, each sub-controller 140 may include the loaded data of other sub-controllers 140, thereby enabling the video controller array 10 to implement self-backup, which greatly reduces the cost of backup compared to the conventional video controller that needs to be backed up by using a new video controller alone. For example, the sum of the actual load of the sub-controllers 140 may be greater than the required load, so that at least one sub-controller 140 is in an idle state when the video controller array 10 operates, the main control board 125 distributes data to each sub-controller 140 when operating, the sub-controllers 140 in the idle state receive the load data of all the sub-controllers 140, the sub-controllers 140 in the actual operation may selectively receive only the load data of the corresponding screen, or may receive the load data of all the sub-controllers 140, when one of the sub-controllers 140 fails, the failed sub-controller 140 sends a failure signal to the main control board 125, the main control board 125 allocates the sub-controllers 140 in the idle state to operate, and the failed sub-controllers 140 take over the corresponding screen to complete the load operation, that is, the self-backup process is implemented.

In one or more embodiments, since the sub-controller 140 is connected to the docking backplane 130 in a hot plug manner, in order to prevent the sub-controller 140 from being detached from the chassis 110 at will, the anti-detachment structure is correspondingly disposed on the sub-controller 140.

Referring to fig. 8, 9 and 11, the sub-controller 140 may include a housing 141 and a locking member 143, the locking member 143 is disposed on the housing 141, wherein an inner cavity 141a is disposed in the housing 141 and used for disposing electronic components, a through hole 1411 is disposed on the housing 141, and the inner cavity 141a is communicated with the mounting groove 110a through the through hole 1411; the locking member 143 is disposed on an inner sidewall of the casing 141, one end of the locking member 143 is fixedly connected to the casing 141, the other end of the locking member is a free end 1433, the locking member 143 is provided with a protruding locking member 145, the protruding locking member 145 is disposed corresponding to the through hole 1411, and at least a portion of the protruding locking member 145 passes through the through hole 1411 and is exposed out of the casing 141; the case 110 is provided with a through hole 110c corresponding to the protruding buckle 145, the protruding buckle 145 is at least partially received in the through hole 110c, and the free end 1433 of the buckle 143 can move relative to the housing 141 when being stressed, so that the protruding buckle 145 is completely received in the through hole 1411. Therefore, in a natural state, the protruding buckle 145 of the buckle 143 passes through the through hole 1411 and enters the through hole 110c, so that the sub-controller 140 can be clamped with the chassis 110 by the protruding buckle 145, and the sub-controller 140 is prevented from being separated from the chassis 110 at will; when the sub-controller 140 needs to be pulled out from the mounting groove 110a, an external force acts on the free end 1433, the locking member 143 deforms under the external force, the free end 1433 moves relative to the housing 141 and the chassis 110, so that the protruding locking member 145 slides out of the through hole 110c and is completely accommodated in the through hole 1411, and at this time, the sub-controller 140 can be pulled out.

Referring to fig. 10 and 11, in some embodiments, the chassis 110 may further include an internal plate 115, the internal plate 115 is disposed in the mounting groove 110a and disposed corresponding to the locking member 143, the internal plate 115 is fixedly connected to the partition 111, a predetermined distance is provided between the internal plate 115 and the partition 111, a receiving cavity 110d is formed between the internal plate 115 and the partition 111, the through hole 110c is disposed on the internal plate 115, and the protruding locking member 145 passes through the through hole 110c and enters the receiving cavity 110 d. In a specific embodiment, the built-in plates 115 are disposed corresponding to two sides of the sub-controller 140, so that the two built-in plates 115 form a structure similar to a slide rail, which can facilitate the insertion and extraction of the sub-controller 140 into and from the mounting groove 110 a.

Referring to fig. 12, in some embodiments, a groove 1413 may be formed on an inner side wall of the housing 141, and the locking member 143 is disposed in the groove 1413. Therefore, on one hand, the groove 1413 can provide a certain guiding function for the movement of the latch 143, and on the other hand, the latch 143 can be prevented from interfering with other electronic components in the cavity 141a during movement. For example, in the embodiment shown in fig. 8, the housing 141 is a hollow rectangular parallelepiped, and the groove 1413 may be disposed at a corner of the housing 141, so as to reduce interference of the locking element 143 with other electronic components.

Referring to fig. 12, in one or more embodiments, a through hole 1415 is further disposed on the housing 141, the through hole 1415 and the through hole 1411 are located on different end surfaces of the housing 141, and the free end 1433 of the locking element 143 at least partially passes through the through hole 1415 and is exposed out of the housing 141. For example, the through hole 1415 may be disposed on an end surface of the sub-controller 140 contacting with the outside, and the locking member 143 is exposed from the through hole 1415 to facilitate contact with a human hand, so that when the sub-controller 140 needs to be pulled out, only a force is applied to the free end 1433 by a hand to push the free end 1433 to move relative to the housing 141 within a range defined by the through hole 1415, so that the protruding locking member 145 can be completely retracted into the through hole 1411, and the sub-controller 140 can be conveniently pulled out from the casing 110.

Referring to fig. 9, a handle 1417 may be further disposed on the housing 141, the handle 1417 and the through hole 1415 are disposed on the same end surface of the housing 141, and the handle 1417 and the through hole 1415 are disposed correspondingly. In a specific embodiment, two handles 1417, two through holes 1415 and two latching members 143 may be provided, each latching member 143 corresponds to one through hole 1415 and one handle 1417, when the sub-controller 140 is pulled out, two hands respectively hold one handle 1417, a thumb presses a free end 1433 of the latching member 143, and then the sub-controller 140 can be pulled out by applying force to the two hands.

Referring to fig. 13, the locking member 143 may include a fixed end 1431 and a free end 1433, which are oppositely disposed, the fixed end 1431 is fixed on the housing 141, the free end 1433 is exposed to the housing 141 through the through hole 1415, and the protruding locking member 145 is disposed at an end of the locking member 143 close to the free end 1433. The protruding buckle 145 is arranged at one end close to the free end 1433, so that the protruding buckle 145 has good response force on deformation of the buckle 143, the free end 1433 only needs to move slightly, the protruding buckle 145 can be easily driven to move in the through hole 1411, and the moving amplitude of the free end 1433 of the buckle 143 can be reduced. In a specific embodiment, the fixing end 1431 may be fixed to the housing 141 by screws, for example, the fixing end 1431 may be fixed to the housing 141 by at least two screws, and the at least two screws are disposed along a length extending direction of the locking member 143. Specifically, in the illustrated embodiment, two screws are arranged along the length direction of the latch 143 at a certain distance to fix the latch 143 on the housing 141, so that the fixed end 1431 has a sufficient area to fit the inner sidewall of the housing 141, the deformation restoring force of the latch 143 can be enhanced, and the probability of irreversible physical deformation of the latch 143 can be reduced.

In one or more embodiments, the free end 1433 may include a first flat portion 143a and a second flat portion 143b, the first flat portion 143a is fixedly connected to the second flat portion 143b, and the first flat portion 143a and the second flat portion 143b form a predetermined included angle. Through the first plane part 143a and the second plane part 143b, the free end 1433 has better transferability to the external force, the rigidity of the free end 1433 is enhanced, and the attenuation of the stress in the transferring process is reduced. Meanwhile, the free end 1433 is not easily deformed when being collided. For example, in the illustrated embodiment, the first and second flat portions 143a and 143b are disposed perpendicular to each other.

Referring to fig. 12 and 13, in some embodiments, the first plane portion 143a may be provided with a notch 143c at a position corresponding to the through hole 1415, so that the through hole 1415 may be provided in an L shape. Through set up scarce groove 143c at first plane portion 143a corresponding through-hole 1415 department, free end 1433 is when the atress, move in through-hole 1415, scarce groove 143c forms dodges to casing 141, then the width that through-hole 1415 corresponds first plane portion 143a only needs to suit with the thickness of first plane portion 143a, and need not to suit with the maximum amplitude of movement of free end 1433, thereby, the shape of through-hole 1415 can set up to L shape, the area of through-hole 1415 has been reduced greatly, be favorable to promoting the dustproof effect of sub-controller 140 and video controller array 10.

It will be appreciated that the latch 143 is rigid and can deform under an external force to slide the protruding latch 145 into the through hole 1411 when the external force is applied to the free end 1433, and the latch 143 can automatically reset after the external force at the free end 1433 is removed.

Referring to fig. 13, the protruding buckle 145 may be a boss or a plate-shaped structure. For example, in the embodiment shown in fig. 13, the protruding catch 145 has a plate shape that is bent to conform to the plate-shaped structure of the catch 143. Specifically, the protruding buckle 145 may include a blocking portion 1451 and a slow pushing portion 1453, and the blocking portion 1451 is fixedly connected to the slow pushing portion 1453 and disposed at a predetermined included angle. The blocking portion 1451 and the slow-pushing portion 1453 forming a predetermined included angle can enhance the clamping between the protruding buckle 145 and the case 110, and prevent the protruding buckle 145 from slipping off the case 110.

A wedge 1455 may be disposed on the protruding buckle 145, and the wedge 1455 is used to provide a buffer when the sub-controller 140 slides into the mounting groove 110a, when the sub-controller 140 slides in, the case 110 slides along the wedge 1455 of the protruding buckle 145, and presses the free end 1433 of the buckle 143 down, so that the protruding buckle 145 is completely retracted into the through hole 1411, and after the sliding is in place, the buckle 143 automatically resets, and the sub-controller 140 is automatically engaged with the case 110. In the illustrated embodiment, wedge surface 1455 is disposed on a jog 1453.

Above-mentioned video controller array 10, through setting up power source 121 and network interface 123 on host system 120, the sub-controller 140 that actually carries out the area load is connected to host system 120 through grafting bottom plate 130, get the electricity and get the signal from host system 120, sub-controller 140 itself does not directly carry out the cable interconnection with the LED display screen or other sub-controllers 140 that carry, but just be connected with grafting bottom plate 130, be connected with host system 120 through grafting bottom plate 130, therefore, when changing sub-controller 140, need not to carry out the plug of cable, as long as carry out solitary change can, the demolition of cable has been reduced, the assemble duration, the required time of maintenance has significantly reduced. And then the sub-controller 140 and the plugging base plate 130 are connected in a hot plug way through the connector 131, so that maintenance in use can be realized, and the maintenance time is further reduced.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A video controller array is characterized by comprising a case, a main control module, a plug-in bottom plate and at least one sub-controller, wherein,

the case is of a hollow structure and is internally provided with a cavity;

the main control module is arranged in the cavity and comprises a power supply interface and a network interface, the power supply interface is used for getting electricity, and the network interface is used for being connected to a video source end and/or an LED display screen;

the plug-in bottom plate is connected with the main control module and establishes data connection with the main control module, and a connector is arranged on the plug-in bottom plate;

the sub-controller is connected with the plug-in bottom plate through the connector and is in hot plug connection with the plug-in bottom plate, and the sub-controller and the plug-in bottom plate realize data transmission through the connector.

2. The video controller array according to claim 1, wherein the casing includes a partition plate disposed in the cavity to partition the cavity into a plurality of mounting slots, the socket bottom plate is disposed corresponding to the mounting slots, the sub-controller is fixedly mounted in the mounting slots, and the mounting slots are communicated with the outside.

3. The video controller array according to claim 2, wherein the case further includes a front baffle, a rear baffle and side plates, the front baffle and the rear baffle are disposed opposite to each other and fixed to each other by the side plates, the front baffle, the rear baffle and the side plates surround to form the cavity, two sides of the partition are respectively connected to the two side plates, a preset distance is provided between one end of the partition close to the front baffle and the front baffle, a wiring channel is formed between the partition and the case, and the mounting groove is communicated with the wiring channel.

4. The video controller array according to claim 3, wherein the socket base plate is disposed at an end of the mounting groove close to the routing channel and is fixedly connected to the chassis.

5. The video controller array of claim 1, wherein the docking bay is configured with a hot swap circuit to power up the sub-controller after the sub-controller is docked on the docking bay and to disconnect the corresponding circuit after the sub-controller is unplugged;

the hot plug circuit comprises a switch unit and a power supply on-off control unit, wherein the switch unit receives an electrifying control signal, converts the electrifying control signal into an on-off signal and outputs the on-off signal to the power supply on-off control unit, and the power supply on-off control unit controls the power supply of the connector on the plugging bottom plate according to the on-off signal so as to control the power supply on-off of the sub-controller plugged on the connector.

6. The video controller array of claim 5, wherein the switch unit comprises a signal input interface EN, a first FET Q1, a second FET Q2, a first resistor R1, a second resistor R2, a third resistor R3 and a fourth resistor R4, a gate of the first FET Q1 is connected to one end of the second resistor R2, the other end of the second resistor R2 is connected to the signal input interface EN, the other end of the second resistor R2 is connected to the first resistor R1 and is grounded through the first resistor R1, a drain of the first FET Q1 is connected to one end of the third resistor R3, the other end of the third resistor R3 is connected to a high level, and a source of the first FET Q1 is grounded; the grid electrode of the second field-effect tube Q2 is connected to the common connection point of the third resistor R3 and the first field-effect tube Q1 and is grounded through the fourth resistor R4, the drain electrode of the second field-effect tube Q2 is connected to the power on-off control unit and is used for outputting an on-off signal to the power on-off control unit, and the source electrode of the second field-effect tube Q2 is grounded;

the power supply on-off control unit comprises a controller U1 and a power supply circuit switch tube Q3, wherein the controller U1 is connected to the drain electrode of the second field effect tube Q2, receives an on-off signal output by the drain electrode of the second field effect tube Q2, converts the on-off signal into a corresponding control signal through conversion processing, and outputs the control signal to the power supply circuit switch tube Q3; the power line switching transistor Q3 has a control terminal and two line terminals, which are connected to the power supply Vpower and the power supply output terminal Vout, respectively, the power supply output terminal Vout being connected to the connector.

7. The video controller array according to claim 1, wherein the main control module comprises a main control board and a switch board, the power interface and the network interface are both connected to the main control board, the plug-in bottom board is connected to the main control board and the power interface, acquires network signals from the main control board, and takes power from the power interface, and the main control board is connected to a video source end and/or an LED display screen through the network interface;

the adapter plate is connected with the main control board, the plug-in bottom plate is connected with the adapter plate, and under the coordination of the main control board, a plurality of sub-controllers are mutually matched to complete the on-load work of the picture.

8. The video controller array of claim 7, wherein each sub-controller backs up with each other.

9. The video controller array according to claim 1, wherein the sub-controller comprises a housing and a latch, the latch is disposed on the housing, an inner cavity is disposed in the housing for disposing electronic components, the housing is provided with a through hole, and the inner cavity is communicated with the cavity through the through hole;

the buckle piece is arranged on the inner side wall of the shell, one end of the buckle piece is fixedly connected to the shell, the other end of the buckle piece is a free end, a protruding buckle is arranged on the buckle piece, the protruding buckle corresponds to the through hole, and at least part of the protruding buckle penetrates through the through hole and is exposed out of the shell;

the chassis is provided with a through hole corresponding to the protruding buckle, at least part of the protruding buckle is contained in the through hole, and the free end of the buckle piece can move relative to the shell when stressed, so that the protruding buckle is completely contained in the through hole.

10. The video controller array according to claim 9, wherein the housing further has a through hole, the through hole and the through hole are located on different end surfaces of the housing, and a free end of the locking member at least partially passes through the through hole and is exposed out of the housing;

the free end comprises a first plane part and a second plane part, the first plane part is fixedly connected with the second plane part, a preset included angle is formed between the first plane part and the second plane part, and a notch is formed in the first plane part corresponding to the through hole, so that the through hole is L-shaped.

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