Multi-HDMI channel communication structure convenient to mount and dismount

Abstract

The utility model discloses a multi-HDMI channel communication structure convenient to mount and dismount. The multi-HDMI channel communication structure comprises a transmitting and receiving integrated core card and an HUB board, four HDMI interfaces are arranged at the middle positions of four sides of the HUB board, and 485 interfaces are arranged below two of the HDMI interfaces; a high-density connector is arranged in the center of the HUB board and is connected with the sending and receiving integrated core card; and six lamp panel connectors are also arranged, are divided into two groups and are symmetrically distributed on the HUB board. According to the utility model, all core functions are integrated on the core card, so that the HUB board is simple in function, the design cycle of research and development personnel can be greatly shortened, and the product marketing time is accelerated; and the number of PCB layers of the HUB board can be reduced, and the cost is saved.

Description

Technical Field

[0001] The utility model relates to a communication structure with multiple HDMI channels that is convenient for installation and disassembly, belonging to the field. Background Technique

[0002] An LED display screen is a display device made of LED lamp beads. By controlling the lighting and brightness of each lamp bead, various texts, images, videos, etc. can be displayed on the screen. LED display screens are widely used in fields such as advertising, media, stage, and commercial displays. With the continuous progress of LED display technology, the distance between LED pixels is getting smaller and smaller, and the number of pixels that can be displayed by LED cabinets of the same size is increasing. The industry urgently needs to increase the bandwidth of a single network cable or select other connection methods with larger bandwidth.

[0003] At present, the industry has a method of using HDMI cables to replace network cables, but this method has many problems. For example, each type of cabinet needs to be redesigned with an integrated card to meet the structural characteristics of the cabinet (dimensions, positions and definitions of connectors, sizes and positions of positioning holes, avoidance areas, special connector requirements, etc.), which greatly increases the R & D investment and delays the product launch time; since HDMI signals are high-speed differential signals and most HDMI interface chips are BGA 0.8mm pitch packages, this requires that the PCB of the integrated card be at least a 4-layer board, or even a 6-layer board; in the case where the PCB area of the integrated card is generally large, the PCB cost will be relatively high, resulting in the integrated card having no cost advantage. Content of the Utility Model

[0004] Therefore, the utility model provides a communication structure with multiple HDMI channels that is convenient for installation and disassembly, and solves the problems of high R & D costs and long cycles existing in the existing methods.

[0005] In order to achieve the above object, the utility model provides the following technical solution: A communication structure with multiple HDMI channels that is convenient for installation and disassembly, including a sending and receiving integrated core card and a HUB board, and the sending and receiving integrated core card is installed on the HUB board;

[0006] The HUB board is provided with HDMI interfaces, and the HDMI interfaces include a first HDMI input interface, a second HDMI input interface, a first HDMI output interface, and a second HDMI output interface;

[0007] The first HDMI input interface, the second HDMI input interface, the first HDMI output interface, and the second HDMI output interface are all electrically connected to the sending and receiving integrated core card;

[0008] The first HDMI input interface and the second HDMI input interface are both used for input of HDMI signals; the first HDMI output interface and the second HDMI output interface are both used for output of HDMI signals; the integrated sending and receiving core card is used for processing HDMI signals.

[0009] As a preferred solution for a multi-HDMI channel communication structure facilitating installation and disassembly, a 485 communication interface is further provided, and the 485 communication interface includes a first 485 communication interface and a second 485 communication interface;

[0010] Both the first 485 communication interface and the second 485 communication interface are electrically connected to the integrated sending and receiving core card; the first 485 communication interface and the second 485 communication interface are used for transmission of 485 communication signals.

[0011] As a preferred solution for a multi-HDMI channel communication structure facilitating installation and disassembly, the first 485 communication interface is provided below the first HDMI input interface, and the second 485 communication interface is provided below the first HDMI output interface.

[0012] As a preferred solution for a multi-HDMI channel communication structure facilitating installation and disassembly, a high-density connector is provided at the center of the HUB board, and the HUB board is connected to the integrated sending and receiving core card through the high-density connector, and the integrated sending and receiving core card has a screw hole locking structure.

[0013] As a preferred solution for a multi-HDMI channel communication structure facilitating installation and disassembly, a number of lamp board connectors are further provided, and the lamp board connectors are divided into two groups and symmetrically distributed on the HUB board;

[0014] All the lamp board connectors are electrically connected to the integrated sending and receiving core card, and the lamp board connectors are used for connecting LED lamp boards.

[0015] As a preferred solution for a multi-HDMI channel communication structure facilitating installation and disassembly, at least two multi-HDMI channel communication structures are connected in series.

[0016] As a preferred solution for a multi-HDMI channel communication structure facilitating installation and disassembly, after two multi-HDMI channel communication structures are connected in series, they are connected in parallel with another two series-connected multi-HDMI channel communication structures.

[0017] The utility model has the following advantages: All core functions are concentrated on the integrated transmitting and receiving core card. The functions of the integrated transmitting and receiving core card include the reception, forwarding, transformation, cropping, caching, output, etc. of HDMI signals, the recognition, forwarding, parsing, application, etc. of control signals, the lighting, control, read and write control of Flash of the LED light board, etc. The integrated transmitting and receiving core card is buckled on the HUB board through high-density connectors and has a screw hole locking structure, which is closely combined with the HUB board. It can be designed by itself according to actual needs. The utility model is designed once and used multiple times, avoiding repeated labor and repeated R & D investment. All core functions are concentrated on the core card, making the function of the HUB board simple, which can greatly shorten the design cycle of R & D personnel and speed up the product listing time. And it can reduce the number of PCB layers of the HUB board and save costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only exemplary, and for those of ordinary skill in the art, other implementation drawings can be obtained by extension according to the provided drawings without creative efforts.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have technical essence. Any modification of the structure, change of the proportional relationship or adjustment of the size, without affecting the effects that the present utility model can produce and the purposes that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0020] Figure 1 It is a schematic diagram of the overall structure of a multi-HDMI channel communication structure that is convenient for installation and disassembly provided in the embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the connection of the HDMI interface box of a multi-HDMI channel communication structure that is convenient for installation and disassembly provided in the embodiment of the present utility model;

[0022] Figure 3 It is the signal definition of the connector between the integrated transmitting and receiving core card and the HUB board of a multi-HDMI channel communication structure that is convenient for installation and disassembly provided in the embodiment of the present utility model;

[0023] Figure 4 It is the circuit diagram of the 485 communication interface in a multi-HDMI channel communication structure that is convenient for installation and disassembly provided in the embodiment of the present utility model.

[0024] In the figure, 1 is an integrated sending and receiving core card; 2 is a lamp board connector; 3 is a HUB board; 4 is a high-density connector; 5.1 is a first HDMI input interface; 5.2 is a second HDMI input interface 2; 5.3 is a first HDMI output interface; 5.4 is a second HDMI output interface; 6.1 is a first 485 communication interface; 6.2 is a second 485 communication interface. Detailed implementation manners

[0025] The following specific embodiments illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , an embodiment of the present utility model provides a communication structure with multiple HDMI channels that is convenient for installation and disassembly, including an integrated sending and receiving core card 1 and a HUB board 3, and the integrated sending and receiving core card 1 is installed on the HUB board 3;

[0027] HDMI interfaces are provided at the middle positions of the four sides of the HUB board 3, and the HDMI interfaces include a first HDMI input interface 5.1, a second HDMI input interface 5.2, a first HDMI output interface 5.3, and a second HDMI output interface 5.4;

[0028] The first HDMI input interface 5.1, the second HDMI input interface 5.2, the first HDMI output interface 5.3, and the second HDMI output interface 5.4 are all electrically connected to the integrated sending and receiving core card 1;

[0029] The first HDMI input interface 5.1 and the second HDMI input interface 5.2 are both used for input of HDMI signals; the first HDMI output interface 5.3 and the second HDMI output interface 5.4 are both used for output of HDMI signals; the integrated sending and receiving core card 1 is used for processing HDMI signals.

[0030] In a possible embodiment, HDMI interfaces 5 are provided at the middle positions of the four sides of the HUB board 3, and the HDMI interfaces 5 include a first HDMI input interface 5.1, a second HDMI input interface 5.2, a first HDMI output interface 5.3, and a second HDMI output interface 5.4.

[0031] Specifically, the HDMI interface has good compatibility and supports connection between different devices. It is a digital interface that can provide uncompressed digital audio and high-resolution video signals, ensuring the best signal quality during transmission. It transmits video, audio, and control signals simultaneously through a single connection, simplifies the device connection process, and reduces the use of cables.

[0032] In a possible embodiment, a 485 communication interface is further provided. The 485 communication interface includes a first 485 communication interface 6.1 and a second 485 communication interface 6.2.

[0033] Both the first 485 communication interface 6.1 and the second 485 communication interface 6.2 are electrically connected to the transceiver integrated core card 1. The first 485 communication interface 6.1 and the second 485 communication interface 6.2 are used for transmitting 485 communication signals.

[0034] Specifically, the 485 communication interface 6 has good anti-interference ability, supports multi-node connection, has low cost, fast transmission speed, and low power consumption.

[0035] In a possible embodiment, a high-density connector 4 is provided at the center of the HUB board 3. The HUB board 3 is connected to the transceiver integrated core card 1 through the high-density connector 4, and the transceiver integrated core card 1 has a screw hole locking structure.

[0036] Specifically, the HUB board 3 is connected to the transceiver integrated core card 1 through the high-density connector 4, making installation and disassembly more convenient. Different HUB boards 3 can be randomly replaced according to different needs. The screw hole locking structure can fix the transceiver integrated core card 1 and ensure that the transceiver integrated core card 1 does not displace and affect normal use.

[0037] In a possible embodiment, 6 lamp board connectors 2 are further provided. The lamp board connectors 2 are divided into two groups and symmetrically distributed on the HUB board 3.

[0038] All the lamp board connectors 2 are electrically connected to the transceiver integrated core card 1, and the lamp board connectors 2 are used for connecting the LED lamp board.

[0039] Specifically, the lamp board connectors 2 have stable performance. Especially in the initial stage of transmission, they can be effectively connected to achieve a very efficient transmission purpose, making the transmission effect reach the best, and finally making the LED lamp present an excellent video effect.

[0040] In a possible embodiment, at least two communication structures with multiple HDMI channels are connected in series, and two communication structures with multiple HDMI channels can also be connected in series and then connected in parallel with another two series-connected communication structures with multiple HDMI channels.

[0041] Specifically, multiple different communication structures with multiple HDMI channels can be connected simultaneously, which can meet personalized requirements, and has a simple design, is easy to reproduce, and can greatly reduce time, economic, and technical costs.

[0042] In summary, the present utility model includes a transceiver integrated core card 1 and a HUB board 3, and the transceiver integrated core card 1 is installed on the HUB board 3; at the middle positions of the four sides of the HUB board 3, HDMI interfaces are provided, and the HDMI interfaces include a first HDMI input interface 5.1, a second HDMI input interface 5.2, a first HDMI output interface 5.3, and a second HDMI output interface 5.4; the first HDMI input interface 5.1, the second HDMI input interface 5.2, the first HDMI output interface 5.3, and the second HDMI output interface 5.4 are all electrically connected to the transceiver integrated core card 1; the first HDMI input interface 5.1 and the second HDMI input interface 5.2 are both used for the input of HDMI signals; the first HDMI output interface 5.3 and the second HDMI output interface 5.4 are both used for the output of HDMI signals; the transceiver integrated core card 1 is used for the processing of HDMI signals. At the middle positions of the four sides of the HUB board 3, HDMI interfaces 5 are provided, and the HDMI interfaces 5 include a first HDMI input interface 5.1, a second HDMI input interface 5.2, a first HDMI output interface 5.3, and a second HDMI output interface 5.4. The HDMI interfaces have good compatibility and support the connection between different devices; they are digital interfaces that can provide uncompressed digital audio and high-resolution video signals to ensure that the signals maintain the best quality during transmission; they transmit video, audio, and control signals simultaneously through a single connection, simplifying the device connection process and reducing the use of wires. A 485 communication interface is also provided, and the 485 communication interface includes a first 485 communication interface 6.1 and a second 485 communication interface 6.2; the first 485 communication interface 6.1 and the second 485 communication interface 6.2 are both electrically connected to the transceiver integrated core card 1; the first 485 communication interface 6.1 and the second 485 communication interface 6.2 are used for the transmission of 485 communication signals. The 485 communication interface 6 has good anti-interference ability, supports multi-node connection, has a low cost, a fast transmission speed, and low power consumption. The HUB board 3 is connected to the transceiver integrated core card 1 through the high-density connector 4, which is more convenient for installation and disassembly. Different HUB boards 3 can be randomly replaced according to different needs. The screw hole locking structure can fix the transceiver integrated core card 1 to ensure that the transceiver integrated core card 1 does not displace and affect normal use. Six lamp board connectors 2 are provided, and the lamp board connectors 2 are divided into two groups and symmetrically distributed on the HUB board 3; the lamp board connectors 2 are all electrically connected to the transceiver integrated core card 1, and the lamp board connectors 2 are used for connecting LED lamp boards. The lamp board connectors 2 have stable performance, especially in the initial stage of transmission, they can be effectively connected to achieve a very efficient transmission purpose, can make the transmission effect reach the best, and finally make the LED lamps present excellent video effects.A communication structure that can be connected to multiple different multi-HDMI channels simultaneously can meet personalized needs, has a simple design, is easy to reproduce, and can greatly reduce time, economic, and technical costs. The utility model is designed once and used multiple times, avoiding repeated labor and repeated R & D investment. All core functions are concentrated on the core card, making the function of the HUB board simple, which can greatly shorten the design cycle of R & D personnel and speed up the product launch time. And it can reduce the number of PCB layers of the HUB board and save costs.

[0043] In the above text, the present utility model has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present utility model, several conventional adjustments or further innovations can be made to these specific embodiments; but as long as they do not deviate from the technical concept of the present utility model, the technical solutions obtained through these conventional adjustments or further innovations also fall within the protection scope of the claims of the present utility model.

Claims

1. A communication structure of multiple HDMI channels that is easy to install and disassemble, characterized in that: It comprises a sending-receiving integrated core card (1) and a HUB board (3), wherein the sending-receiving integrated core card (1) is mounted on the HUB board (3); The HUB board (3) is provided with an HDMI interface, wherein the HDMI interface comprises a first HDMI input interface (5.1), a second HDMI input interface (5.2), a first HDMI output interface (5.3) and a second HDMI output interface (5.4); The first HDMI input interface (5.1), the second HDMI input interface (5.2), the first HDMI output interface (5.3), and the second HDMI output interface (5.4) are all electrically connected to the transmitting and receiving integrated core card (1); The first HDMI input interface (5.1) and the second HDMI input interface (5.2) are both used for inputting HDMI signals; the first HDMI output interface (5.3) and the second HDMI output interface (5.4) are both used for outputting HDMI signals; and the integrated transmitting and receiving core card (1) is used for processing HDMI signals.

2. The communication structure of multiple HDMI channels that is easy to install and disassemble according to claim 1, characterized in that: A 485 communication interface is also provided, and the 485 communication interface includes a first 485 communication interface (6.1) and a second 485 communication interface (6.2); The first 485 communication interface (6.1) and the second 485 communication interface (6.2) are both electrically connected to the transmitting and receiving integrated core card (1); the first 485 communication interface (6.1) and the second 485 communication interface (6.2) are used for the transmission of 485 communication signals.

3. The communication structure of multiple HDMI channels that is easy to install and disassemble according to claim 2, characterized in that: The first 485 communication interface (6.1) is provided below the first HDMI input interface (5.1), and the second 485 communication interface (6.2) is provided below the first HDMI output interface (5.3).

4. The communication structure of multiple HDMI channels that is easy to install and disassemble according to claim 1, characterized in that: A high-density connector (4) is provided at the center of the HUB board (3), and the HUB board (3) is connected to the sending-receiving integrated core card (1) via the high-density connector (4), and the sending-receiving integrated core card (1) has a screw hole locking structure.

5. The communication structure of multiple HDMI channels that is easy to install and disassemble according to claim 1, characterized in that: A plurality of light board connectors (2) are also provided, and the light board connectors (2) are divided into two groups and symmetrically distributed on the HUB board (3); The light board connectors (2) are electrically connected to the transmitting and receiving integrated core card (1), and the light board connectors (2) are used to connect the LED light board.

6. The communication structure of multiple HDMI channels that is easy to install and disassemble according to claim 1, characterized in that: At least two communication structures of multiple HDMI channels are connected in series.

7. The communication structure of multiple HDMI channels that is easy to install and disassemble according to claim 1, characterized in that: Two communication structures of multiple HDMI channels are connected in series and then connected in parallel with another two communication structures of multiple HDMI channels connected in series.

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