CN209843216U - LED box and spliced display screen - Google Patents
LED box and spliced display screen Download PDFInfo
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- CN209843216U CN209843216U CN201920587856.1U CN201920587856U CN209843216U CN 209843216 U CN209843216 U CN 209843216U CN 201920587856 U CN201920587856 U CN 201920587856U CN 209843216 U CN209843216 U CN 209843216U
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Abstract
The embodiment of the utility model discloses LED box and a concatenation formula display screen. The LED box body comprises: a box body main body; the LED lamp panels are fixedly arranged on the first side surface of the box body main body; and the integrated control card is arranged on the box body, is opposite to the second side surface of the first side surface, and is positioned on the back surfaces of the LED lamp panels. The embodiment of the utility model provides a can improve the simple to operate nature.
Description
Technical Field
The utility model relates to a show technical field, especially relate to a LED box and a concatenation formula display screen.
Background
Traditional LED shows trade, contains mutually independent AC/DC power, HUB board and receiving card in the LED box, and each component need be installed alone during the installation, finally constitutes the LED box through winding displacement or board to board connector connection, and the installation is more complicated.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides a LED box and a concatenation formula display screen can improve the simple to operate nature.
On the one hand, the embodiment of the utility model provides a pair of LED box, include: a box body main body; the LED lamp panels are fixedly arranged on the first side surface of the box body main body; and an integrated control card, set up in the box main part with the relative second side of first side, just be located the back of a plurality of LED lamp plates, integrated control card includes: a circuit board; the lamp panel power output interface and the display signal output interface are arranged on the circuit board and are connected with the plurality of LED lamp panels; the alternating current power supply input interface is arranged on the circuit board; the alternating current power supply cascade connection port is arranged on the circuit board and is connected with the alternating current power supply input interface; the alternating current-to-direct current power supply circuit is arranged on the circuit board and is connected with the alternating current power supply input interface and the lamp panel power supply output interface; the receiving card power circuit is positioned on the circuit board and is connected with the alternating current-to-direct current power circuit; the receiving card function circuit is positioned on the circuit board and is connected with the receiving card power circuit and the display signal output interface; and the image signal input interface and the image signal cascade interface are arranged on the circuit board and are respectively connected with the receiving card functional circuit.
In an embodiment of the present invention, the card receiving function circuit includes: the programmable logic device is connected with the receiving card power circuit and the display signal output interface; the microcontroller is connected with the programmable logic device and the receiving card power circuit; and an Ethernet physical layer transceiver connected between the image signal input interface and the programmable logic device and connected with the receiving card power circuit.
In an embodiment of the present invention, the integrated control card is installed and fixed on the second side surface; the box main part still includes the back lid, the back lid is fixed on the second side and cover integrated control board, the back lid is provided with first through-hole, second through-hole, third through-hole and fourth through-hole, first through-hole the second through-hole the third through-hole with the fourth through-hole with alternating current power supply input interface alternating current power supply level hookup mouth image signal input interface image signal cascade interface one-to-one sets up, and exposes alternating current power supply input interface alternating current power supply level hookup mouth image signal input interface with image signal cascade interface.
In an embodiment of the present invention, the integrated control card is installed and fixed on the second side surface; the box body further comprises a rear cover, the rear cover is fixed on the second side face and covers the integrated control card, the rear cover is provided with a first connector, a second connector, a third connector and a fourth connector, and the first connector, the second connector, the third connector and the fourth connector are connected with the alternating current power supply input interface, the alternating current power supply level connecting port, the image signal input interface and the image signal cascade interface in a one-to-one correspondence mode.
In an embodiment of the present invention, the integrated control card is installed and fixed on the second side surface; the box body further comprises a rear cover, the rear cover is fixed on the second side face and covers the integrated control card, the rear cover is provided with a first connector, a second connector, a first through hole and a second through hole, the first connector and the second connector are connected with the alternating current power supply input interface and the alternating current power supply level connecting port in a one-to-one correspondence mode, and the first through hole and the second through hole are arranged in a one-to-one correspondence mode and expose the image signal input interface and the image signal cascade interface.
In an embodiment of the present invention, the box body further includes a rear cover, the rear cover is fixed on the second side and covers the integrated control card, the integrated control card is fixed in the rear cover, the rear cover is provided with a first through hole, a second through hole, a third through hole and a fourth through hole, the first through hole, the second through hole, the third through hole and the fourth through hole with the ac power supply input interface the ac power supply level connection port the image signal input interface the image signal cascade interface one-to-one setting, and exposing the ac power supply input interface the ac power supply level connection port the image signal input interface and the image signal cascade interface.
In an embodiment of the present invention, the box body further includes a back cover, the back cover is fixed on the second side and covers the integrated control card, the integrated control card is fixed in the back cover, the back cover is provided with a first connector, a second connector, a third connector and a fourth connector, the first connector, the second connector, the third connector and the fourth connector are connected in a one-to-one correspondence manner, the ac power input interface, the ac power level connection interface, the image signal input interface, and the image signal cascade interface.
In an embodiment of the present invention, the box body further includes a back cover, the back cover is fixed on the second side and covers the integrated control card, the integrated control card is fixed in the back cover, the back cover is provided with a first connector, a second connector, a first through hole and a second through hole, the first connector is connected to the second connector in a one-to-one correspondence manner, the ac power input interface is connected to the ac power level connection port, the first through hole and the second through hole are provided to the image signal input interface and the image signal cascade interface in a one-to-one correspondence manner, and the image signal input interface and the image signal cascade interface are exposed.
The utility model discloses an embodiment, integrated control card still includes the core card, receive card power supply circuit with it sets up to receive card functional circuit on the core card, be provided with the connector on the circuit board, the core card plug-in connect to the connector.
In an embodiment of the present invention, a value range of a rated output power of the ac-dc power circuit is 200 to 300W; the lamp panel power output interfaces are 4-pin connectors and comprise two positive pins and two negative pins, and the number of the lamp panel power output interfaces is 4, 6 or 8; the display signal output interfaces are 16 or 26pin headers, and the number of the display signal output interfaces is 4, 6 or 8; the lamp panel power output interface and the display signal output interface are located on the same side face of the circuit board.
On the other hand, the embodiment of the utility model provides a pair of concatenation formula display screen, include: a first LED box, such as the aforementioned LED box; and a second LED box, such as the LED box described above, wherein the ac power input interface of the second LED box is connected to the ac power cascade interface of the first LED box, and the image signal input interface of the second LED box is connected to the image signal cascade interface of the first LED box.
One of the above technical solutions has the following advantages or beneficial effects: the embodiment of the utility model provides a through will integrate to have and exchange integrated control card settings such as change DC power supply circuit and lamp plate signal interface output circuit in the LED box, can improve the simple to operate nature of LED box, reduce the line connection degree of difficulty and the possibility of mistake appears.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1a is an exploded schematic view of an LED box according to a first embodiment of the present invention.
Fig. 1b is a schematic side view of the LED box according to the first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the integrated control card shown in fig. 1 a.
Fig. 3 is another schematic structural diagram of the integrated control card shown in fig. 1 a.
Fig. 4a is an exploded schematic view of another structure of the LED box according to the first embodiment of the present invention.
Fig. 4b is a schematic side view of another structure of the LED box according to the first embodiment of the present invention.
Fig. 4c is an exploded schematic view of another structure of the LED box according to the first embodiment of the present invention.
Fig. 4d is a schematic side view of another structure of the LED box according to the first embodiment of the present invention.
Fig. 5a to 5d are schematic diagrams illustrating the connection relationship between the main circuits of some components in the integrated control card according to the first embodiment of the present invention.
Fig. 6a is a schematic structural diagram of a core board of another integrated control card according to another embodiment of the present invention.
Fig. 6b is a schematic structural diagram of a circuit board of the integrated control card shown in fig. 6 a.
Fig. 7 is a schematic structural diagram of a tiled display screen according to a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
[ first embodiment ] A method for manufacturing a semiconductor device
As shown in fig. 1a and 1b, a first embodiment of the present invention provides an LED box 10. Specifically, the LED box 10 provided in this embodiment includes, for example: the integrated control card 100, a plurality of LED lamp panels 300 and a box body 500.
The integrated control card 100 includes, for example, a circuit board 110, an ac-to-dc power circuit 120, a lamp panel power output interface 130, a display signal output interface 140, a receiving card function circuit 150, a receiving card power circuit 160, an ac power input interface 170, an ac power level interface 180, an image signal input interface 190, and an image signal cascade interface 200. The Circuit Board 110 is, for example, a Printed Circuit Board (PCB).
The ac-to-dc power supply circuit 120 is disposed on the circuit board 110. The ac-to-dc power circuit 120 is connected to the ac power input interface 170 to obtain power. The ac-to-dc power circuit 120 includes, for example, a rectifier filter circuit, which converts ac power input from the ac power input interface 170 into dc power, for example, converts 220V ac power into 5V dc power to supply power to the integrated control card 100 and the LED lamp panels 300. The rated output power of the ac-to-dc power circuit 120 can be determined and set according to the number and specifications of the LED lamp panels 300 of different LED boxes 10. The value range of the rated output power of the AC-to-DC power supply circuit 120 is 200 to 300W, and it should be mentioned that the AC-to-DC power supply circuit 120 of this embodiment can be built by similar electronic components in a commercially available AC-to-DC power supply, so the specific circuit structure thereof is not repeated herein.
The ac power cascade port 180 is connected to the ac power input interface 170 for supplying the input ac power to the next integrated control card in the cascade when the next integrated control card is cascaded.
The lamp panel power output interface 130 is connected to the ac-to-dc power circuit 120, so as to obtain power from the ac-to-dc power circuit 120 and supply dc power with a voltage not higher than 5V, such as 4.2V, 4.5V, 4.6V, 5V, etc., to the LED lamp panel connected thereto. The lamp panel power output interface 130 is typically multiple (see fig. 2), such as multiple dc voltage output ports. A plurality of lamp plate power output interface 130 are for example the connector respectively to the user connects the power cord of LED lamp plate through inserting fast, and it is convenient to connect the line. The number of the lamp panel power output interfaces 130 is, for example, 4, 6, or 8. In addition, the power output interface 130 of a single lamp panel can be connected with one LED lamp panel or a plurality of LED lamp panels. For example, the single lamp panel power output interface 130 is a 4-pin connector that includes two positive pins and two negative pins.
The display signal output interface 140 is connected to the LED lamp panel 300 to provide display data and control signals, and displays a corresponding picture on the LED lamp panel 300. The display signal output interface 140 includes, for example, display data output pins such as red (R), green (G), and blue (B) signals, and related control signal output pins such as an enable signal (OE), a blank signal (CTRL), a clock signal (CLK), and the like. The display signal output interface 140 is typically a plurality (see fig. 2), and each display signal output interface 140 is, for example, a connector, such as a 16-pin or 26-pin header, so that the LED light panel can be connected by a flexible flat cable. Of course, the display signal output interface 140 may also be other types of connectors, and the embodiments of the present invention are not limited thereto. The number of the display signal output interfaces 140 is, for example, 4, 6, or 8. One display signal output interface 140 may be a connector, and each connector may be connected to one LED lamp panel 300, or may be connected to a plurality of cascaded LED lamp panels 300. Of course, the display signal output interfaces 140 may share the same connector, and the integrated connector may be connected to the LED lamp panels 300. Further, the number of the lamp panel power output interfaces 130 is equal to the number of the display signal output interfaces 140.
Preferably, the lamp panel power output interface 130 and the display signal output interface 140 are disposed on the same side of the circuit board 110, so that a user can complete connection between the lamp panel power circuit and the image signal circuit from the same side of the integrated control card 100 more conveniently, and convenience of wiring is improved. In other preferred embodiments, each lamp panel power output interface 130 and each display signal output interface 140 share one connector, so that the number of cables can be reduced, a user can connect the lamp panel power circuit and the display signal circuit at one time, the workload of circuit connection is further reduced, and the circuit connection efficiency is improved.
The image signal input interface 190 is provided on the circuit board 110. The image signal input interface 190 is used, for example, to connect an image signal transmitting apparatus such as a transmitting card to acquire an image signal from the transmitting card and transmit it to the receiving card function circuit 150. The image signal input interface 190 is, for example, an ethernet interface such as an RJ45 network interface, or an aviation connector. The image signal input interface 190 may also be other types of signal interfaces such as other signal interfaces suitable for long-distance signal transmission.
The receiving card power circuit 160 is provided on the circuit board 110. The card-receiving power circuit 160 is connected to the ac-to-dc power circuit 120 and the card-receiving function circuit 150. The receiving card power circuit 160 may convert Direct Current (DC) power into direct current power having different voltages, which are of a boost, buck-boost, etc. type. For example, the ac-dc power circuit 120 converts the input ac power into dc power and outputs the dc power with a suitable voltage to the receiving card power circuit 160, and the receiving card power circuit 160 converts the dc power and outputs the converted dc power to the receiving card function circuit 150 to supply power to the receiving card function circuit 150.
The receiving card function circuit 150 is located on the circuit board 110. The receiving card function circuit 150 is connected to the image signal input interface 190 to obtain the input image signal (e.g. including display data and field frequency signal) from the image signal input interface 190. The receiving card function circuit 150 is further connected to the display signal output interface 140 to output display data and control signals to the LED lamp panel 300.
As described above, as shown in fig. 3, the receiving card function circuit 150 includes, for example, a programmable logic device 152, a microcontroller 154, and an ethernet physical layer transceiver 153. The programmable logic device 152 is, for example, a Field Programmable Gate Array (FPGA) device, for example, of a type EP3C16F484, and is mainly used for processing an image signal to generate display data and a control signal for the LED lamp panel 300. The microcontroller 154 is, for example, an MCU, and its model is, for example, GD32F130, and is mainly used for loading the programmable logic device 152, and even for performing temperature and humidity detection, voltage detection, etc. by connecting a sensor. The ethernet physical layer transceiver 153 is connected between the image signal input interface 190, such as an ethernet interface, and the programmable logic device 152. The microcontroller 154 is connected to the programmable logic device 152. The programmable logic device 152, the microcontroller 154 and the ethernet physical layer transceiver 153 are respectively connected to the receiving card power circuit 160 to get power. The programmable logic device 152 is connected to the display signal output interface 140. In addition, as shown in fig. 3, the receiving card function circuit 150 may further include a nonvolatile memory 155 such as FLASH. The nonvolatile memory 155 is connected to the programmable logic device 152 and the microcontroller 154, for example, and is used for storing data of the integrated control card 100 and avoiding data loss after the integrated control card 100 is powered down. It should be noted that the number of the non-volatile memories 155 can also be two, and the two non-volatile memories are connected to the programmable logic device 152 and the microcontroller 154 in a one-to-one correspondence. In addition, the receiving card function circuit 150 may also include volatile memory 156, such as SDRAM, with the volatile memory 156 providing data buffer space. The nonvolatile memory 155 and the volatile memory 156 are connected to a card power supply circuit 160 (see fig. 3) to supply power.
As shown in fig. 2, the image signal cascade interface 200 is provided on the circuit board 110. The image signal cascade interface 200 is, for example, an ethernet interface such as an RJ45 network port or an air connector. The image signal cascade interface 200 is connected to the ethernet physical layer transceiver 153 of the receiving card function circuit 150. The image signal cascade interface 200 is connected to the receiving card function circuit 150 to transmit the image signal not belonging to the present-stage integrated control card 100 to the next integrated control card in cascade. Preferably, the image signal cascade interface 200 and the image signal input interface 190 are integrated into a dual-port structure for connecting wires.
Further, as shown in fig. 2, the integrated control card 100 further includes a plurality of signal driving chips 210 disposed on the circuit board 110. The display signal output interface 140 is also plural. The display signal output interfaces 140 are connected to the programmable logic device 152 of the card function receiving circuit 150 via the signal driving chips 210, respectively.
Furthermore, the integrated control card 100 may further include a network transformer chip 220. The network transformer chip 220 is disposed on the circuit board 110. The network transformer chip 220 is connected between the image signal input interface 190 and the ethernet phy transceiver 153, and the network transformer chip 220 is further connected between the image signal cascade interface 200 and the ethernet phy transceiver 153, so that the two ethernet interfaces share one network transformer chip 220.
A plurality of LED lamp panels 300 are spliced to form a large-sized display screen. The number of the plurality of LED lamp panels 300 may be, for example, 4, 6, or 8, etc. The LED lamp panel 300 may be a commercially available LED lamp panel. The plurality of LED lamp panels 300 are connected to the lamp panel power output interface 130 and the display signal output interface 140 of the integrated control card 100. Here, it can be understood that the integrated control card 100 is provided with a plurality of lamp panel power output interfaces 130 and a plurality of display signal output interfaces 140, and each LED lamp panel 300 of the plurality of LED lamp panels 300 is connected to one lamp panel power output interface 130 and one display signal output interface 140; it can also be understood that, the integrated control card 100 is provided with a lamp panel power output interface 130 and a display signal output interface 140, a first LED lamp panel 300 of the plurality of LED lamp panels 300 is connected to the lamp panel power output interface 130 and the display signal output interface 140, and the other LED lamp panels 300 are connected to the first LED lamp panel 300 in a cascade manner; it can also be understood that a plurality of lamp panel power output interfaces 130 and one display signal output interface 140 are arranged on the integrated control card 100, the plurality of LED lamp panels 300 are connected to the plurality of lamp panel power output interfaces 130 in a one-to-one correspondence manner, a first LED lamp panel 300 of the plurality of LED lamp panels 300 is connected to the one display signal output interface 140, and the other LED lamp panels 300 are connected to the first LED lamp panel 300 in a cascade manner; it can also be understood that 1 lamp panel power output interface 130 and a plurality of display signal output interfaces 140 are arranged on the integrated control card 100, a first LED lamp panel 300 of the plurality of LED lamp panels 300 is connected to the one lamp panel power output interface 130, other LED lamp panels 300 are connected to the first LED lamp panel 300 in a cascade manner, and the plurality of LED lamp panels 300 are connected to the plurality of display signal output interfaces 140 in a one-to-one correspondence manner; it can also be understood that M lamp panel power output interfaces 130 and N display signal output interfaces 140 are disposed on the integrated control card 100, and the M LED lamp panels 300 and the N display signal output interfaces 140 are connected to the plurality of LED lamp panels 300 in a one-to-one corresponding connection manner and a cascade combination manner.
The box body 500 is, for example, a metal structural member or a plastic structural member, which can provide a support and a mounting position for the plurality of LED lamp panels 300 and the integrated control card 100. As shown in fig. 1 and 2, a first side surface of the box body 500 is used for mounting and fixing the plurality of LED lamp panels 300.
The second side surface of the box body 500 opposite to the first side surface is provided with an integrated control card 100. At this time, the integrated control card 100 is located on the back (non-display) side of the LED lamp panels 300. The lamp panel power output interface 130 and the display signal output interface 140 of the integrated control card 100 are respectively connected to the plurality of LED lamp panels 300 through, for example, flat cables.
As mentioned above, the integrated control card 100 is disposed on the second side surface of the box body 500, which may be a plane, or may be formed with a receiving space 510 for placing and fixing the integrated control card 100, for example, the integrated control card 100 is directly fixedly mounted on the second side surface of the box body 500 by a screw connection method.
Further, as shown in fig. 4a and 4b, the box body 500 further includes a rear cover 530. The rear cover 530 may be, for example, a housing-like member having an opening at one side. The rear cover 530 is fixed to the second side of the box body 500 by, for example, a screw connection manner, and covers and encloses the integrated control card 100. In this way, the rear cover 530 can protect the integrated control card 100 from water or dust, for example, so as to improve the reliability and the service life of the LED box 10. The rear cover 530 is provided with a first through hole, a second through hole, a third through hole and a fourth through hole, the first through hole, the second through hole, the third through hole and the fourth through hole are arranged in one-to-one correspondence with the ac power input interface 170, the ac power level connection port 180, the image signal input interface 190 and the image signal cascade interface 200, and expose the ac power input interface 170, the ac power level connection port 180, the image signal input interface 190 and the image signal cascade interface 200, so that cables can be connected to the ac power input interface 170, the ac power level connection port 180, the image signal input interface 190 and the image signal cascade interface 200 through the first through hole, the second through hole, the third through hole and the fourth through hole. In this way, the integrated control card 100 can be used in common no matter whether the rear cover 530 is provided, so that the variety of the integrated control card 100 can be reduced, and the universality of the integrated control card 100 can be improved.
Further, a plurality of connectors are arranged on the rear cover 530, and the connectors are connected to the ac power input interface 170, the ac power cascade interface 180, the image signal input interface 190, and the image signal cascade interface 200 in a one-to-one correspondence manner. For example, the plurality of connectors include a connector 531, a connector 533, a connector 535, and a connector 537, one of which is connected to the ac power input interface 170, the ac power level connection interface 180, the image signal input interface 190, and the image signal cascade interface 200. Specifically, the connector 531 is connected to the ac power input interface 170, the connector 533 is connected to the ac power level connection interface 180, the connector 535 is connected to the image signal input interface 190, and the connector 537 is connected to the image signal cascade interface 200; of course, there are other ways of attachment. The connector 531, the connector 533, the connector 535 and the connector 537 are all aviation connectors; alternatively, connectors 531 and 533 are aircraft connectors and connectors 535 and 537 are network connectors. In this way, damage to the ac power input interface 170, the ac power stage interface 180, the image signal input interface 190, and the image signal cascade interface 200 on the integrated control card 100 due to repeated plugging can be reduced. When the connector 531, the connector 533, the connector 535, and/or the connector 537 are damaged due to repeated plugging, only the connector 531, the connector 533, the connector 535, and/or the connector 537 on the rear cover 530 need to be replaced, thereby reducing the damage of the integrated control card 100, prolonging the service life of the product, and improving the product quality.
Alternatively, the rear cover 530 is provided with two connectors and two through holes. The two connectors are connected with the ac power input interface 170 and the ac power cascade interface 180 in a one-to-one correspondence manner, and the two through holes are arranged in a one-to-one correspondence manner with the image signal input interface 190 and the image signal cascade interface 200 and expose the image signal input interface 190 and the image signal cascade interface 200, so that the cable can be directly connected to the image signal input interface 190 and the image signal cascade interface 200 through the two through holes.
As mentioned above, the integrated control card 100 is disposed on the second side of the box body 500, and it can be further understood that the integrated control card 100 is, for example, covered and mounted in the rear cover 530 on the second side of the box body 500, and disposed on the second side of the box body 500 through the rear cover 530, as shown in fig. 4c and 4 d. Further, the rear cover 530 may also be provided with connectors and/or through holes in the manner described above to facilitate the connection of the ac power input interface 170, the ac power stage interface 180, the image signal input interface 190, and the image signal cascade interface 200.
The main circuit connection relationships of some components in this embodiment are shown in fig. 5a to 5 d. Specifically, fig. 5a-5c are diagrams illustrating the main circuit connections of the programmable logic device 152, and fig. 5d is a diagram illustrating the main circuit connections of the microcontroller 154.
To sum up, the embodiment of the utility model provides a through having the integrated control card setting such as exchange commentaries on classics DC power supply circuit and lamp plate signal interface output circuit to change in the LED box, can improve the simple to operate nature of LED box, reduce the line connection degree of difficulty and the possibility of mistake appears. The structural design of the integrated control card integrates upstream and downstream resources better, improves the compatibility of products and the connection reliability between interfaces, reduces the size of a circuit board such as the thickness of the circuit board and reduces the size of the whole structure. The lamp panel power output interface 130 and the display signal output interface 140 are arranged on the same side of the circuit board 110, so that a user can conveniently complete connection between a lamp panel power circuit and an image signal circuit from the same side of the integrated control card 100, and the connection convenience is improved. In addition, every lamp plate power output interface 130 and every display signal output interface 140 share a connector, both reducible cable quantity can make the user once only connect lamp plate power supply circuit and display signal circuit again, have further alleviateed the work load of line connection, have promoted line connection efficiency. Moreover, set up back lid 530 on box main part 500, protected integrated control card 100 waterproof, dustproof lamp effectively, promoted product reliability and life. The rear cover 530 is provided with a connector to protect the service life of the ac power input interface 170, the ac power cascade interface 180, the image signal input interface 190, and the image signal cascade interface 200 on the integrated control card 100, and to improve the product quality.
In addition, in other embodiments of the present invention, as shown in fig. 6a, the integrated control card 100 includes a core board 700. The receiving card power supply circuit 160 and the receiving card function circuit 150 located on the circuit board 110 in the original figure 1 are provided on the core board 700, not directly on the circuit board 110. Specifically, as shown in fig. 6b, the receiving card function circuit 150 and the receiving card power supply circuit 160 on the circuit board 110 in fig. 1 are replaced with the connector 113. The core board 700 is plugged to the connector 113 on the circuit board 110. In addition, the ac-to-dc power supply circuit 120 provided on the circuit board 110 is connected to the card receiving power supply circuit 160 provided on the core board 700 through the connector 113. The network transformer chip 220 disposed on the circuit board 110 is connected to the ethernet physical layer transceiver 153 disposed on the core board 500, which receives the card function circuit 150, through the connector 113. Therefore, by reserving a connection interface on the circuit board 110, flexible replacement and later-stage function expansion and upgrading of the core board 700 are facilitated. Further, the connectors 113 are, for example, connectors such as row female connectors arranged in pairs, and the core board 700 is also provided with connectors 510 such as row pin connectors arranged in pairs to be matched with the connectors 113, so that the core board 700 can be quickly inserted on the circuit board 110.
[ second embodiment ]
As shown in fig. 7, a second embodiment of the present invention provides a tiled display screen 900. The tiled display screen 900 includes, for example, a plurality of LED boxes, such as the LED box 10 and the LED box 20, … …, cascaded in sequence. A plurality of LED boxes here can be the LED box provided by the first embodiment of the present invention. Of course, a part of the plurality of LED boxes may also be the LED box provided in the first embodiment of the present invention, and another part may be other cascaded LED boxes.
Specifically, the LED housing 10 includes an ac power supply cascade interface 180 and an image signal cascade interface 200.
The LED housing 20 includes an ac power input interface 170 and an image signal input interface 190. The ac power input interface 170 of the LED box 20 is connected to the ac power cascade interface 180 of the LED box 10, and the image signal input interface 190 of the LED box 20 is connected to the image signal cascade interface 200 of the LED box 10.
In addition, the LED box 10 further includes an ac power input interface 170 and an image signal input interface 190.
The ac power input interface 170 of the LED housing 10 is connected to an ac power source to obtain power, and the image signal input interface 190 of the LED housing 10 is connected to an image signal transmitting device such as a transmitting card to obtain an image signal.
Further, the LED box 20 further includes an ac power supply cascade interface 180 and an image signal cascade interface 200 to cascade the LED box of the subsequent stage.
Of course, the LED box in the final cascade may also be an LED box without the ac power supply cascade interface 180 and the image signal cascade interface 200.
The utility model discloses concrete implementation process and technological effect of embodiment refer to the utility model discloses the description of first embodiment, no longer give unnecessary details here.
Furthermore, it should be understood that the foregoing embodiments are only exemplary illustrations of the present invention, and the technical solutions of the embodiments can be arbitrarily combined and collocated for use on the premise that the technical features are not conflicted, the structure is not contradictory, and the purpose of the present invention is not violated.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (11)
1. An LED box, its characterized in that includes:
a box body main body;
the LED lamp panels are fixedly arranged on the first side surface of the box body main body; and
integrated control card sets up in the box main part with the relative second side of first side, just be located the back of a plurality of LED lamp plates, integrated control card includes:
a circuit board;
the lamp panel power output interface and the display signal output interface are arranged on the circuit board and are connected with the plurality of LED lamp panels;
the alternating current power supply input interface is arranged on the circuit board;
the alternating current power supply cascade connection port is arranged on the circuit board and is connected with the alternating current power supply input interface;
the alternating current-to-direct current power supply circuit is arranged on the circuit board and is connected with the alternating current power supply input interface and the lamp panel power supply output interface;
the receiving card power circuit is positioned on the circuit board and is connected with the alternating current-to-direct current power circuit;
the receiving card function circuit is positioned on the circuit board and is connected with the receiving card power circuit and the display signal output interface; and
and the image signal input interface and the image signal cascade interface are arranged on the circuit board and are respectively connected with the receiving card functional circuit.
2. The LED housing of claim 1, wherein the card-receiving functional circuit comprises:
the programmable logic device is connected with the receiving card power circuit and the display signal output interface;
the microcontroller is connected with the programmable logic device and the receiving card power circuit; and
and the Ethernet physical layer transceiver is connected between the image signal input interface and the programmable logic device and is connected with the receiving card power circuit.
3. The LED cabinet as claimed in claim 2, wherein the integrated control card is fixedly mounted on the second side; the box main part still includes the back lid, the back lid is fixed on the second side and cover integrated control board, the back lid is provided with first through-hole, second through-hole, third through-hole and fourth through-hole, first through-hole the second through-hole the third through-hole with the fourth through-hole with alternating current power supply input interface alternating current power supply level hookup mouth image signal input interface image signal cascade interface one-to-one sets up, and exposes alternating current power supply input interface alternating current power supply level hookup mouth image signal input interface with image signal cascade interface.
4. The LED cabinet as claimed in claim 2, wherein the integrated control card is fixedly mounted on the second side; the box body further comprises a rear cover, the rear cover is fixed on the second side face and covers the integrated control card, the rear cover is provided with a first connector, a second connector, a third connector and a fourth connector, and the first connector, the second connector, the third connector and the fourth connector are connected with the alternating current power supply input interface, the alternating current power supply level connecting port, the image signal input interface and the image signal cascade interface in a one-to-one correspondence mode.
5. The LED cabinet as claimed in claim 2, wherein the integrated control card is fixedly mounted on the second side; the box body further comprises a rear cover, the rear cover is fixed on the second side face and covers the integrated control card, the rear cover is provided with a first connector, a second connector, a first through hole and a second through hole, the first connector and the second connector are connected with the alternating current power supply input interface and the alternating current power supply level connecting port in a one-to-one correspondence mode, and the first through hole and the second through hole are arranged in a one-to-one correspondence mode and expose the image signal input interface and the image signal cascade interface.
6. The LED box of claim 2, wherein the box body further comprises a back cover, the back cover is fixed on the second side and covers the integrated control card, the integrated control card is fixed in the back cover, the back cover is provided with a first through hole, a second through hole, a third through hole and a fourth through hole, the first through hole, the second through hole, the third through hole and the fourth through hole are arranged in a one-to-one correspondence with the ac power input interface, the ac power stage connection port, the image signal input interface and the image signal cascade interface, and the ac power input interface, the ac power stage connection port, the image signal input interface and the image signal cascade interface are exposed.
7. The LED housing as claimed in claim 2, wherein the housing body further comprises a rear cover, the rear cover is fixed on the second side surface and covers the integrated control card, the integrated control card is fixed in the rear cover, the rear cover is provided with a first connector, a second connector, a third connector and a fourth connector, and the first connector, the second connector, the third connector and the fourth connector are connected to the ac power input interface, the ac power stage connection interface, the image signal input interface and the image signal cascade interface in a one-to-one correspondence.
8. The LED housing of claim 2, wherein the housing body further comprises a rear cover, the rear cover is fixed on the second side and covers the integrated control card, the integrated control card is fixed in the rear cover, the rear cover is provided with a first connector, a second connector, a first through hole and a second through hole, the first connector and the second connector are connected to the ac power input interface and the ac power stage connection interface in a one-to-one correspondence, and the first through hole and the second through hole are arranged in a one-to-one correspondence with the image signal input interface and the image signal cascade interface and expose the image signal input interface and the image signal cascade interface.
9. The LED box of claim 2 wherein the integrated control card further comprises a core card, the receiving card power circuit and the receiving card function circuit are disposed on the core card, the circuit board has a connector disposed thereon, and the core card is plugged into the connector.
10. The LED box body of claim 1, wherein the rated output power of the AC-to-DC power circuit ranges from 200W to 300W; the lamp panel power output interfaces are 4-pin connectors and comprise two positive pins and two negative pins, and the number of the lamp panel power output interfaces is 4, 6 or 8; the display signal output interfaces are 16 or 26pin headers, and the number of the display signal output interfaces is 4, 6 or 8; the lamp panel power output interface and the display signal output interface are located on the same side face of the circuit board.
11. A tiled display screen, comprising:
a first LED housing, the LED housing of any one of claims 1 to 10; and
the LED box of any one of claims 1 to 10, wherein the AC power input interface of the second LED box is connected to the AC power cascade interface of the first LED box, and the image signal input interface of the second LED box is connected to the image signal cascade interface of the first LED box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587856.1U CN209843216U (en) | 2019-04-26 | 2019-04-26 | LED box and spliced display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920587856.1U CN209843216U (en) | 2019-04-26 | 2019-04-26 | LED box and spliced display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209843216U true CN209843216U (en) | 2019-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920587856.1U Active CN209843216U (en) | 2019-04-26 | 2019-04-26 | LED box and spliced display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209843216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168577A1 (en) * | 2022-03-07 | 2023-09-14 | 西安青松光电技术有限公司 | Display unit and display device |
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2019
- 2019-04-26 CN CN201920587856.1U patent/CN209843216U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023168577A1 (en) * | 2022-03-07 | 2023-09-14 | 西安青松光电技术有限公司 | Display unit and display device |
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