HDMI cable and HDMI device

Abstract

The invention discloses an HDMI (High Definition Multimedia Interface) cable and HDMI equipment, the HDMI cable comprises a cable body and two HDMI joints respectively connected to two ends of the cable body, and the cable body comprises a data 0 differential signal line, a data 1 differential signal line, a data 2 differential signal line, a clock differential signal line, a CEC line, an SCL line, an SDA line, a power line and a hot plug monitoring line; a first wire group is not arranged in the wire body, the first wire group comprises one or more of a data 0 shielding wire, a data 1 shielding wire, a data 2 shielding wire, a clock shielding wire and a DDC / CEC ground wire, all signal wires associated with the first wire group in the wire body are ultra-thin coaxial wires, and shielding layers of the ultra-thin coaxial wires are connected with ground pins on a PCB of the HDMI connector in a conducting mode. According to the technical scheme, the wire diameter and the occupied volume of the wire body of the HMDI cable are reduced, and the cost of the HDMI cable is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of HDMI, and in particular to an HDMI cable and an HDMI device. Background Art

[0002] At present, many products on the market (such as aerial photography drones, optoelectronic pods, medical equipment, testing equipment, etc.) need to use HDMI cables to transmit high-definition video signals. The two ends of the HDMI cable are HDMI connectors, and the middle is a wire body that connects the two HDMI connectors. The existing HDMI cable has 19 signal lines in the wire body. The wire body is too thick, occupies a large volume, and is expensive. Summary of the invention

[0003] The main purpose of the present invention is to provide a HDMI cable, aiming to reduce the wire diameter and occupied volume of the HDMI cable body, as well as the cost of the HDMI cable.

[0004] To achieve the above object, the HDMI cable proposed in the present invention includes a line body and two HDMI connectors respectively connected to the two ends of the line body, wherein the line body includes: a data 0 differential signal line, a data 1 differential signal line, a data 2 differential signal line, a clock differential signal line, a CEC line, an SCL line, an SDA line, a power line and a hot plug monitoring line;

[0005] The cable body is not provided with a first line group, the first line group includes one or more of a data 0 shielded line, a data 1 shielded line, a data 2 shielded line, a clock shielded line, and a DDC / CEC ground line, and each signal line associated with the first line group in the cable body is an ultra-fine coaxial line, and a shielding layer of the ultra-fine coaxial line is conductively connected to a ground pin on a PCB board of the HDMI connector;

[0006] Among them, the signal line associated with the data 0 shield line is the data 0 differential signal line, the signal line associated with the data 1 shield line is the data 1 differential signal line, the signal line associated with the data 2 shield line is the data 2 differential signal line, the signal line associated with the clock shield line is the clock differential signal line, and the signal line associated with the DDC / CEC ground line is the CEC line, the SCL line and the SDA line.

[0007] In some embodiments, the cable body is not provided with a reserved wire corresponding to the reserved pin of the HDMI connector.

[0008] In some embodiments, the first line group includes the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line, and the DDC / CEC ground line.

[0009] In some embodiments, the total number of signal lines in the line body is 13, and the 13 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line and the hot plug monitoring line;

[0010] Or, the total number of signal lines in the line body is 14, and the 14 signal lines in the line body are: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the reserved line, the power line and the hot plug monitoring line.

[0011] In some embodiments, the total number of signal lines in the line body is 14, and the 14 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and the data 0 shield line or the data 1 shield line or the data 2 shield line or the clock shield line or the DDC / CEC ground line;

[0012] Or, the total number of signal lines in the line body is 15, and the 15 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any two of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line and the reserved line;

[0013] Or, the total number of signal lines in the line body is 16, and the 16 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any three of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line and the reserved line;

[0014] Or, the total number of signal lines in the line body is 17, and the 17 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any four of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line and the reserved line;

[0015] Or, the total number of signal lines in the line body is 18, and the 18 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the reserved line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any four of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line.

[0016] In some embodiments, all signal lines in the wire body are the extremely fine coaxial line; or, a portion of the signal lines in the wire body are the extremely fine coaxial line, and another portion of the signal lines are electronic lines different from the extremely fine coaxial line.

[0017] In some embodiments, the end of each signal line in the line body is connected to the corresponding signal pin of the PCB board by welding.

[0018] In some embodiments, at least one end of the wire body is conductively connected to the corresponding HDMI connector via a connector, the connector comprising a first part and a second part, the first part being connected to the end of the wire body, the shielding layer of the extremely fine coaxial line in the wire body being conductively connected to the outer shell of the first part, the second part being connected to a PCB board disposed on the HDMI connector, the first part and the second part being detachably connected, the outer shell of the first part being conductively connected to the grounding pin of the PCB board, and the diameter of the smallest hole through which the first part can pass is smaller than the diameter of the smallest hole through which the HDMI connector can pass.

[0019] In some embodiments, the connector is a micro coaxial connector;

[0020] And / or, both ends of the wire are conductively connected to the corresponding HDMI connector through a connector.

[0021] The present invention also provides an HDMI device, comprising at least one of the above-mentioned HDMI cables.

[0022] The technical solution of the HDMI cable of the present invention reduces the number of signal lines in the line body by 1 to 5 by canceling at least one of the data 0 shielding line, the data 1 shielding line, the data 2 shielding line, the clock shielding line, and the DDC / CEC ground line in the line body of the HDMI cable; at the same time, all signal lines associated with the signal lines canceled in the line body are made of ultra-fine coaxial lines, and the shielding layers of these ultra-fine coaxial lines are connected to the grounding pins on the PCB board of the HDMI connector, that is, the shielding layers of the ultra-fine coaxial lines are grounded, so that the shielding layers of each ultra-fine coaxial line play the same role as the corresponding canceled signal line, thereby ensuring that the HDMI cable can still accurately and reliably transmit signals without affecting the performance of the HDMI cable in transmitting signals. Compared with the HDMI cable of the prior art, the solution of the HDMI cable of the present invention reduces 1 to 5 signal lines in the line body, so that the number of signal lines in the line body is only 14 to 18, the line diameter of the line body is reduced, the occupied volume is reduced, and the cost is reduced; and some signal lines in the line body also use ultra-fine coaxial lines, which further reduces the line diameter and occupied volume of the line body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A schematic diagram of the connection between a signal line of an HDMI cable body and an HDMI connector in the prior art;

[0025] Figure 2 is a schematic structural diagram of an embodiment of an HDMI cable of the present invention;

[0026] Figure 3 This is a schematic diagram of the connection between the signal line of the cable body and the HDMI connector of the first embodiment of the HDMI cable of the present invention;

[0027] Figure 4 It is a schematic diagram showing the connection between the signal line of the cable body and the HDMI connector of the second embodiment of the HDMI cable of the present invention;

[0028] Figure 5 It is a schematic diagram of the connection between the signal line of the cable body and the HDMI connector of the third embodiment of the HDMI cable of the present invention;

[0029] Figure 6 It is a partial structural schematic diagram of an embodiment of an HDMI cable of the present invention;

[0030] Figure 7 It is a partial structural schematic diagram of a cable body of an embodiment of an HDMI cable of the present invention;

[0031] Figure 8 FIG. 1 is a partial structural diagram of an HDMI connector of an embodiment of an HDMI cable of the present invention. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, "and / or" in the full text includes three solutions. Taking A and / or B as an example, it includes technical solution A, technical solution B, and technical solution that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0035] like Figure 1As shown, at present, the high-definition multimedia interface (HDMI) cable in the prior art, that is, the HDMI cable, has an interface of 19 pins on its HDMI connector, namely: TMDS (Transition Minimized Differential Signaling) data 0+ pin, TMDS data 0- pin, TMDS data 0 shield pin, TMDS data 1+ pin, TMDS data 1- pin, TMDS data 1 shield pin, TMDS data 2+ pin, TMDS data 2- pin, TMDS data 2 shield pin, TMDS clock+ pin, TMDS clock- pin, TMDS clock shield pin, CEC (Consumer Electronics Control, Consumer Electronics Control) pin, reserved pin, SCL pin, SDA pin, DDC / CEC ground pin, power pin and hot plug monitoring pin, and there are 19 corresponding signal lines in the line body, namely: TMDS data 0+ line X7, TMDS data 0- line X9, data 0 shield line X8, TMDS data 1+ line X4, TMDS data 1- line X6, data 1 shield line X5, TMDS data 2+ line X1, TMDS data 2- line X3, data 2 shield line X2, TMDS clock+ line, TMDS clock-line, clock shield line X11, CEC line X13, reserved line X14, SCL line X15, SDA line X16, DDC / CEC ground line X17, power line X18 and hot plug monitoring line X19.

[0036] The existing HDMI cables have a large number of signal lines, resulting in a large wire diameter, a large occupied volume, and a high cost.

[0037] In view of the above-mentioned deficiencies of the existing HDMI cables, the present invention proposes a new solution for HDMI cables to improve the problems of large wire diameter, large occupied volume and high cost of the HDMI cable body 10 .

[0038] Reference Figures 2 to 5In this embodiment, the HDMI cable includes a line body 10 and two HDMI connectors 20 respectively connected to both ends of the line body 10; wherein the line body 10 includes: a data 0 differential signal line (i.e., a TMDS data 0+ line X7 and a TMDS data 0- line X9), a data 1 differential signal line (i.e., a TMDS data 1+ line X4 and a TMDS data 1- line X6), a data 2 differential signal line (i.e., a TMDS data 2+ line X1 and a TMDS data 2- line X3), a clock differential signal line (i.e., a TMDS clock+ line and a TMDS clock- line), a CEC line X13, an SCL line X15, an SDA line X16, a power line X18 and a hot plug monitoring line X19.

[0039] The line body 10 is not provided with a first line group, and the first line group includes one or more of a data 0 shield line X8, a data 1 shield line X5, a data 2 shield line X2, a clock shield line X11, and a DDC / CEC ground line X17; that is, the data 0 shield line X8 and / or the data 1 shield line X5 and / or the data 2 shield line X2 and / or the clock shield line X11 and / or the DDC / CEC ground line X17 are cancelled in the line body 10 of the HDMI cable, so the number of signal lines in the line body 10 of the HDMI cable of this embodiment does not exceed 18. Compared with the existing HDMI cable, the line body 10 of the HDMI cable of this embodiment reduces 1 to 5 signal lines. In this embodiment, the signal line associated with the data 0 shield line X8 is the data 0 differential signal line, the signal line associated with the data 1 shield line X5 is the data 1 differential signal line, the signal line associated with the data 2 shield line X2 is the data 2 differential signal line, the signal line associated with the clock shield line X11 is the clock differential signal line, and the signal line associated with the DDC / CEC ground line X17 is the CEC line X13, the SCL line X15 and the SDA line X16.

[0040] In order to ensure that the HDMI cable without the first wire group (i.e., without the first wire group) can still accurately and reliably transmit signals normally, in this embodiment, each signal line associated with the first wire group in the wire body 10 is an ultra-fine coaxial wire (the ultra-fine coaxial wire itself has a shielding layer), and the shielding layer of the ultra-fine coaxial wire is connected to the ground pin on the PCB board 21 of the HDMI connector 20 (which can be a TMDS data 0 shielding pin, a TMDS data 1 shielding pin, a TMDS data 2 shielding pin, a TMD clock shielding pin or a DDC / CEC ground pin, or an additional grounding pin provided on the PCB board 21). By connecting the shielding layer of the ultra-fine coaxial wire to the grounding pin on the PCB board 21, the shielding layer shields the external signal, ensuring that the signal transmitted on the central conductor of the ultra-fine coaxial wire is not interfered, thereby ensuring the accuracy and reliability of data or signal transmission. Therefore, even if the first wire group is cancelled in the wire body 10 of the HDMI cable, the role played by each signal line of the first wire group is achieved by each signal line associated with the first wire group being grounded through their own shielding layers, so that the HDMI cable without the first wire group can still ensure the accuracy and reliability of signal transmission.

[0041] For example, the data 0 shielding line X8 is cancelled in the line body 10 (that is, the data 0 shielding line X8 is not provided in the line body 10), and the signal line associated with the data 0 shielding line X8 (that is, the data 0 differential signal line, that is, the TMDS data 0+ line X7 and the TMDS data 0- line X9) is an extremely fine coaxial line, and the TMDS data 0+ line X7 and the TMDS data 0- line X9 are grounded through their respective shielding layers, playing the same role as the data 0 shielding line X8 to shield interference from external signals, so that the data transmitted on the central conductors of the TMDS data 0+ line X7 and the TMDS data 0- line X9 are not interfered with, and the data transmission is accurate and reliable. For another example, the DDC / CEC ground wire X17 is eliminated in the cable body 10 (i.e., the DDC / CEC ground wire X17 is not provided in the cable body 10), and the signal lines associated with the DDC / CEC ground wire X17 (i.e., the CEC line X13, the SCL line X15, and the SDA line X16) are extremely fine coaxial lines, and the shielding layers of the CEC line X13, the SCL line X15, and the SDA line X16 are respectively grounded, thereby playing the same role as the DDC / CEC ground wire X17, so that the signals transmitted on the central conductors of the CEC line X13, the SCL line X15, and the SDA line X16 are stable and accurate.

[0042] The technical solution of the HDMI cable of the present embodiment reduces the number of signal lines in the cable body 10 by 1 to 5 by eliminating at least one of the data 0 shielded line X8, the data 1 shielded line X5, the data 2 shielded line X2, the clock shielded line X11, and the DDC / CEC ground line X17 in the cable body 10 of the HDMI cable; at the same time, all signal lines associated with the signal lines eliminated in the cable body 10 adopt ultra-fine coaxial lines, and the shielding layers of these ultra-fine coaxial lines are connected to the grounding pins on the PCB board 21 of the HDMI connector 20, that is, the shielding layers of the ultra-fine coaxial lines are grounded, so that the shielding layers of each ultra-fine coaxial line play the same role as the corresponding eliminated signal line, thereby ensuring that the HDMI cable can still accurately and reliably transmit signals without affecting the signal transmission performance of the HDMI cable. The HDMI cable of the present embodiment reduces 1 to 5 signal lines in the cable body 10 (i.e., reduces the data 0 shielded line X8 and / or the data 1 shielded line X5 and / or the data 2 shielded line X2 and / or the clock shielded line X11 and / or the DDC / CEC ground line X17), compared with the HDMI cable of the prior art, so that the number of signal lines in the cable body 10 is only 14 to 18, the wire diameter of the cable body 10 is reduced, the occupied volume is reduced, and the cost is reduced; and some of the signal lines in the cable body 10 also use ultra-thin coaxial lines (the wire diameter is smaller than that of conventional electronic wires), which further reduces the wire diameter and occupied volume of the cable body 10.

[0043] like Figure 4 As shown, in some embodiments, the reserved line X14 corresponding to the reserved pin of the HDMI connector 20 is not provided in the cable body 10. Since the reserved pin is usually not used in the normal transmission of signals by the HDMI cable, that is, the reserved line X14 in the cable body 10 is usually not used, and the reserved line X14 has no associated signal line, the reserved line X14 corresponding to the reserved pin in the cable body 10 is cancelled in this embodiment, which will not affect the normal signal transmission of the HDMI cable, and by canceling the reserved line X14 in the cable body 10, the number of signal lines in the cable body 10 is reduced by one, further reducing the wire diameter and occupied volume of the cable body 10, while saving the cost of the reserved line X14, further reducing the cost of the HDMI cable.

[0044] like Figure 3As shown, in some embodiments, the first line group includes a data 0 shield line X8, a data 1 shield line X5, a data 2 shield line X2, a clock shield line X11 and a DDC / CEC ground line X17, that is, the five signal lines of the data 0 shield line X8, the data 1 shield line X5, the data 2 shield line X2, the clock shield line X11 and the DDC / CEC ground line X17 are all cancelled in the line body 10 of the HDMI cable, and the 11 signal lines associated with these five signal lines (that is, the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line X13, the SCL line X15, and the SDA line X16) all use ultra-fine coaxial lines, and the shielding layers of these 11 signal lines are conductively connected to the ground pin on the PCB board 21 of the HDMI connector 20. The HDMI cable of this embodiment reduces 5 signal lines in the line body 10, and only has 14 signal lines, and among the 14 signal lines in the line body 10, at least 11 are ultra-fine coaxial lines. Therefore, the HDMI cable of this embodiment greatly reduces the wire diameter and occupied volume of the line body 10, while greatly reducing the cost.

[0045] like Figure 4 As shown, in some embodiments, the total number of signal lines in the line body 10 is 13, and the 13 signal lines in the line body 10 are respectively: data 0 differential signal line (TMDS data 0+ line X7 and TMDS data 0- line X9), data 1 differential signal line (TMDS data 1+ line X4 and TMDS data 1- line X6), data 2 differential signal line (TMDS data 2+ line X1 and TMDS data 2- line X3), clock differential signal line (TMDS clock+ line and TMDS clock- line), CEC line X13, SCL line X15, SDA line X16, power line X18 and hot plug monitoring line X19. That is, in the HDMI cable of the present embodiment, the data 0 shielded line X8, the data 1 shielded line X5, the data 2 shielded line X2, the clock shielded line X11, the DDC / CEC ground line X17 and the reserved line X14 are cancelled in the line body 10 (that is, the line body 10 is not provided with) and the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line X13, the SCL line X15 and the SDA line X16 in the line body 10 are ultra-fine coaxial lines, that is, 6 signal lines are reduced in the line body 10, and there are only 13 signal lines in the line body 10, and at least 11 of them are ultra-fine coaxial lines, so that the wire diameter and the occupied volume of the line body 10 are smaller, and the cost of the HDMI cable is lower.

[0046] like Figure 3As described, in some embodiments, the total number of signal lines in the line body 10 is 14, and the 14 signal lines in the line body 10 are respectively: data 0 differential signal line, data 1 differential signal line, data 2 differential signal line, clock differential signal line, CEC line X13, SCL line X15, SDA line X16, reserved line X14, power line X18 and hot plug monitoring line X19. That is, in this embodiment, the data 0 shielded line X8, the data 1 shielded line X5, the data 2 shielded line X2, the clock shielded line X11 and the DDC / CEC ground line X17 are cancelled in the cable body 10, but the reserved line X14 is retained, and the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line X13, the SCL line X15 and the SDA line X16 in the cable body 10 are ultra-fine coaxial lines, that is, 5 signal lines are reduced in the cable body 10, and there are only 14 signal lines in the cable body 10, and at least 11 of them are ultra-fine coaxial lines. Compared with the HDMI cable in the prior art, the wire diameter and the occupied volume of the cable body 10 are greatly reduced, and the cost is greatly reduced.

[0047] like Figure 5 As shown, in some embodiments, the total number of signal lines in the line body 10 is 14, and the 14 signal lines in the line body 10 are respectively: data 0 differential signal line, data 1 differential signal line, data 2 differential signal line, clock differential signal line, CEC line X13, SCL line X15, SDA line X16, power line X18, hot plug monitoring line X19, and data 0 shield line X8 or data 1 shield line X5 or data 2 shield line X2 or clock shield line X11 or DDC / CEC ground line X17 (the figure of this embodiment only takes the retention of data 0 shield line X8 as an example). That is, in the HMDI cable of this embodiment, the reserved line X14, as well as four of the data 0 shielded line X8, the data 1 shielded line X5, the data 2 shielded line X2, the clock shielded line X11, and the DDC / CEC ground line X17 are cancelled in the line body 10, that is, 5 signal lines are reduced in the line body 10, and there are only 14 signal lines in the line body 10, and at least 8 of them are ultra-fine coaxial lines. The wire diameter and occupied volume of the line body 10 are greatly reduced, and the cost is greatly reduced.

[0048] In some embodiments, the total number of signal lines in the wire body 10 is 15, and the 15 signal lines in the wire body 10 are: data 0 differential signal line, data 1 differential signal line, data 2 differential signal line, clock differential signal line, CEC line X13, SCL line X15, SDA line X16, power line X18, hot plug monitoring line X19, and any two of the data 0 shielded line X8, data 1 shielded line X5, data 2 shielded line X2, clock shielded line X11, DDC / CEC ground line X17 and reserved line X14; that is, in the HMDI cable of this embodiment, the reserved line X14 and three of the data 0 shielded line X8, data 1 shielded line X5, data 2 shielded line X2, clock shielded line X11, and DDC / CEC ground line X17 are cancelled in the wire body 10, that is, 4 signal lines are reduced in the wire body 10, and there are only 15 signal lines in the wire body 10, and at least 6 of them are ultra-fine coaxial lines.

[0049] In some embodiments, the total number of signal lines in the wire body 10 is 16, and the 16 signal lines in the wire body 10 are: data 0 differential signal line, data 1 differential signal line, data 2 differential signal line, clock differential signal line, CEC line X13, SCL line X15, SDA line X16, power line X18, hot plug monitoring line X19, and any three of the data 0 shielded line X8, data 1 shielded line X5, data 2 shielded line X2, clock shielded line X11, DDC / CEC ground line X17 and reserved line X14; that is, in the HMDI cable of this embodiment, the reserved line X14 and two of the data 0 shielded line X8, data 1 shielded line X5, data 2 shielded line X2, clock shielded line X11, and DDC / CEC ground line X17 are cancelled in the wire body 10, that is, 3 signal lines are reduced in the wire body 10, and there are only 16 signal lines in the wire body 10, and at least 4 of them are ultra-fine coaxial lines.

[0050] In some embodiments, the total number of signal lines in the cable body 10 is 17, and the 17 signal lines in the cable body 10 are: a data 0 differential signal line, a data 1 differential signal line, a data 2 differential signal line, a clock differential signal line, a CEC line X13, an SCL line X15, an SDA line X16, a power line X18, a hot plug monitoring line X19, and any four of the data 0 shielded line X8, the data 1 shielded line X5, the data 2 shielded line X2, the clock shielded line X11, the DDC / CEC ground line X17 and the reserved line X14; that is, in the HMDI cable of this embodiment, the reserved line X14 and one of the data 0 shielded line X8, the data 1 shielded line X5, the data 2 shielded line X2, the clock shielded line X11, and the DDC / CEC ground line X17 are cancelled in the cable body 10, that is, 2 signal lines are reduced in the cable body 10, and there are only 17 signal lines in the cable body 10, and at least 2 of them are ultra-fine coaxial lines.

[0051] In some embodiments, the total number of signal lines in the cable body 10 is 18, and the 18 signal lines in the cable body 10 are: data 0 differential signal line, data 1 differential signal line, data 2 differential signal line, clock differential signal line, CEC line X13, reserved line X14, SCL line X15, SDA line X16, power line X18, hot plug monitoring line X19, and any four of data 0 shielded line X8, data 1 shielded line X5, data 2 shielded line X2, clock shielded line X11 and DDC / CEC ground line X17; that is, in the HMDI cable of this embodiment, one of the data 0 shielded line X8, data 1 shielded line X5, data 2 shielded line X2, clock shielded line X11, and DDC / CEC ground line X17 is cancelled in the cable body 10, but the reserved line X14 is retained, that is, one signal line is reduced in the cable body 10, and there are only 18 signal lines in the cable body 10, and at least 2 of them are ultra-fine coaxial lines.

[0052] In some embodiments, the HDMI cable can be such that the signal lines in the cable body 10 are all extremely fine coaxial lines, so that the wire diameter of each signal line in the cable body 10 is reduced, thereby further reducing the outer diameter of the cable body 10 and the volume occupied by the cable body 10.

[0053] In some embodiments, the HDMI cable may also be a cable body 10 in which a portion of the signal lines are very fine coaxial lines, and another portion of the signal lines are electronic lines different from the very fine coaxial lines (such as copper wires, two-core wires, three-core wires, etc.). For example, the signal lines associated with the first line group in the cable body 10 are very fine coaxial lines, and the remaining signal lines in the cable body 10 are electronic lines different from the very fine coaxial lines; or, the signal lines associated with the first line group in the cable body 10 are very fine coaxial lines, and some of the remaining signal lines are also very fine coaxial lines, and the remaining are electronic lines different from the very fine coaxial lines. Specifically, for example, the first line group includes a data 1 shielded line X5, a data 2 shielded line X2, a clock shielded line X11 and a DDC / CEC ground line X17, and the signal lines associated with the first line group in the line body 10 (data 1 differential signal line, data 2 differential signal line, clock differential signal line, CEC line X13, SCL line X15 and SDA line X16) are ultra-fine coaxial lines, and the data 0 differential signal line among the remaining signal lines in the line body 10 is also an ultra-fine coaxial line, and the remaining signal lines are copper wires.

[0054] In some embodiments, the ends of each signal line in the cable body 10 are connected by welding to the corresponding signal pins of the PCB board 21. In this embodiment, the cable body 10 is connected to the HDMI connector 20 by welding the ends of each signal line to the corresponding signal pins on the PCB board 21 of the HDMI connector 20; wherein, the conductive connection between the shielding layer of the ultra-fine coaxial line in the cable body 10 and the grounding pin on the PCB board 21 of the HDMI connector 20 can also be achieved by welding.

[0055] Combination Figure 2 and Figures 6 to 8 In the present embodiment, at least one end of the cable body 10 is conductively connected to the corresponding HDMI connector 20 via a connector 30. The connector 30 includes a first portion 31 and a second portion 32. The first portion 31 is connected to the end of the cable body 10, and the second portion 32 is connected to a PCB board 21 provided on the HDMI connector 20. The first portion 31 and the second portion 32 are detachably connected (e.g., plugged in, snapped in, etc.), that is, at least one end of the cable body 10 is detachably connected to the HDMI connector 20. The shielding layer of the ultra-fine coaxial line in the wire body 10 is conductively connected to the shell of the first part 31 (a conductor, such as a metal material), and the shell of the first part 31 is conductively connected to the ground pin of the PCB board 21; wherein, the shell of the first part 31 can be conductively connected to the ground pin of the PCB board 21 through the shell of the second part 32 (a conductor, such as a metal material), such as the shell of the second part 32 is conductively connected to the ground pin on the PCB board 21, and when the first part 31 is connected to the second part 32, the shell of the first part 31 is conductively connected to the shell of the second part 32; of course, a fixed foot can also be set on the shell of the first part 31, and when the first part 31 is connected to the second part 32, the fixed foot directly contacts the ground pin on the PCB board 21, so that the shell of the first part 31 is conductively connected to the ground pin on the PCB board 21. wherein, the aperture of the smallest hole that the first part 31 can pass through is smaller than the aperture of the smallest hole that the HDMI connector 20 can pass through, that is, the size of the first part 31 is smaller than the size of the HDMI connector 20 (such as the width of the first part 31 is smaller than the width of the HDMI connector 20).

[0056] In this embodiment, the number of pins of the first part 31 of the connector 30 can be consistent with the number of signal lines in the line body 10, and the number of pins of the first part 31 can also be greater than the number of signal lines in the line body 10 (for example, the number of signal lines in the line body 10 is 13, and the number of pins of the first part 31 is 14), and each signal line of the line body 10 is respectively connected to its corresponding pin (pin of the first part 31).

[0057] In the scheme of the HDMI cable of the present embodiment, at least one end of the wire body 10 is detachably connected to the HDMI connector 20 through the connector 30, the first part 31 of the connector 30 is connected to the end of the wire body 10, the second part 32 of the connector 30 is connected to the PCB of the HDMI connector 20, and the aperture of the smallest hole that the first part 31 can pass through is smaller than the aperture of the smallest hole that the HDMI connector 20 can pass through; therefore, when the HDMI cable encounters a wire hole with a smaller aperture during the perforation routing arrangement, and the aperture of the wire hole cannot allow the HDMI connector 20 to pass through but can allow the first part 31 of the connector 30 to pass through, the first part 31 of the connector 30 can be firstly disassembled and separated from the second part 32 to separate the HDMI connector 20 from the wire body 10, and then the first part 31 is allowed to pass through the wire hole with one end of the wire body 10, and finally the first part 31 that passes through the wire hole is reconnected with the second part 32 of the HDMI connector 20, so that the HDMI cable perforation arrangement is completed. The solution of the HDMI cable in this embodiment enables the HDMI cable to pass through a cable hole with a smaller aperture, making it more convenient to arrange the holes of the HDMI cable.

[0058] In some embodiments, the connector 30 between the end of the cable body 10 and the HDMI connector 20 is an ultra-fine coaxial connector; compared with the ordinary connector 30, the ultra-fine coaxial connector is smaller in size, that is, the size of the first part 31 is further reduced, so that the aperture of the minimum hole through which the first part 31 can pass is smaller, further reducing the aperture of the cable hole through which the HDMI cable can pass.

[0059] In some embodiments, there are 14 signal lines in the line body 10, and the connector 30 is a 14-pin ultra-fine coaxial connector, and the 14 pins of the ultra-fine coaxial connector are connected to the signal lines one by one. In some embodiments, there are 13 signal lines in the line body 10, and the connector 30 is a 14-pin ultra-fine coaxial connector, and one pin of the ultra-fine coaxial connector is vacant, and the remaining 13 pins are connected to the signal lines one by one.

[0060] In some embodiments, both ends of the wire body 10 are connected to the corresponding HDMI connector 20 through a connector 30, so that the wire body 10 and the HDMI connectors 20 at both ends can be disassembled and separated. When the wire body 10 or the HDMI connector 20 of the HDMI cable is broken, only the broken part of the HDMI cable can be replaced, and the remaining unbroken part can be retained, without replacing the entire HDMI cable, thereby reducing the maintenance cost of the equipment using the HDMI cable of this embodiment. For example, when the HDMI connector 20 at one end of the HDMI cable is broken, it is only necessary to remove the broken HMDI connector and replace it with a new HDMI connector 20 connected to the original wire body 10; for another example, when the wire body 10 of the HDMI cable is broken, it is only necessary to disassemble the wire body 10 and the HDMI connectors 20 at both ends, and connect the new wire body 10 to the HDMI connectors 20 at both ends.

[0061] In the embodiment of the present invention, the first part 31 may be a male socket and the second part 32 may be a female socket; or the first part 31 may be a female socket and the second part 32 may be a male socket. In some embodiments, the first part 31 may be the male socket or the female socket of the connector 30 with a smaller width, so that the first part 31 may be smaller in size and can pass through a hole with a smaller diameter.

[0062] Of course, in other embodiments, the first part 31 may be a female socket and the second part 32 may be a male socket.

[0063] In some embodiments, the connector 30 may be a connector 30 with a lock, and when the first part 31 and the second part 32 of the connector 30 are in a connected state, the lock is locked to make the connection between the first part 31 and the second part 32 more stable. Alternatively, in some embodiments, an anti-detachment structure is provided on the HDMI connector 20, and when the first part 31 and the second part 32 are in a connected state, the anti-detachment structure acts on the first part 31 to prevent the first part 31 and the second part 32 from detaching by themselves, so as to ensure the stability of the connection between the first part 31 and the second part 32; wherein the anti-detachment structure may be, for example, a micro screw, a buckle or other structure.

[0064] The present invention also provides an HDMI device, which uses an HDMI cable to transmit a high-definition video signal, such as a drone, an optoelectronic pod, a medical device, etc. The HDMI device includes at least one HDMI cable as described above, and the structure of the HDMI cable can refer to the above embodiment, which will not be repeated here. Since the HDMI device of the present invention adopts the technical solution of any embodiment of the above HDMI cable, it has at least all the technical effects brought by the technical solution of the above embodiment, which will not be repeated here.

[0065] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0066] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the application concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An HDMI cable, characterized in that: It includes a line body and two HDMI connectors respectively connected to the two ends of the line body, wherein the line body includes: a data 0 differential signal line, a data 1 differential signal line, a data 2 differential signal line, a clock differential signal line, a CEC line, an SCL line, an SDA line, a power line and a hot plug monitoring line; The cable body is not provided with a first line group, the first line group includes one or more of a data 0 shielded line, a data 1 shielded line, a data 2 shielded line, a clock shielded line, and a DDC / CEC ground line, and each signal line associated with the first line group in the cable body is an ultra-fine coaxial line, and a shielding layer of the ultra-fine coaxial line is conductively connected to a ground pin on a PCB board of the HDMI connector; Among them, the signal line associated with the data 0 shield line is the data 0 differential signal line, the signal line associated with the data 1 shield line is the data 1 differential signal line, the signal line associated with the data 2 shield line is the data 2 differential signal line, the signal line associated with the clock shield line is the clock differential signal line, and the signal line associated with the DDC / CEC ground line is the CEC line, the SCL line and the SDA line.

2. The HDMI cable according to claim 1, wherein: The cable body is not provided with a reserved wire corresponding to the reserved pin of the HDMI connector.

3. The HDMI cable according to claim 1, wherein: The first line group includes the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line, and the DDC / CEC ground line.

4. The HDMI cable according to claim 3, characterized in that: The total number of signal lines in the line body is 13, and the 13 signal lines in the line body are: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line and the hot plug monitoring line; Or, the total number of signal lines in the line body is 14, and the 14 signal lines in the line body are: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the reserved line, the power line and the hot plug monitoring line.

5. The HDMI cable according to claim 1, wherein: The total number of signal lines in the line body is 14, and the 14 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and the data 0 shield line or the data 1 shield line or the data 2 shield line or the clock shield line or the DDC / CEC ground line; Or, the total number of signal lines in the line body is 15, and the 15 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any two of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line and the reserved line; Or, the total number of signal lines in the line body is 16, and the 16 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any three of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line and the reserved line; Or, the total number of signal lines in the line body is 17, and the 17 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any four of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line and the reserved line; Or, the total number of signal lines in the line body is 18, and the 18 signal lines in the line body are respectively: the data 0 differential signal line, the data 1 differential signal line, the data 2 differential signal line, the clock differential signal line, the CEC line, the reserved line, the SCL line, the SDA line, the power line, the hot plug monitoring line, and any four of the data 0 shield line, the data 1 shield line, the data 2 shield line, the clock shield line and the DDC / CEC ground line.

6. The HDMI cable according to claim 1, wherein: All the signal lines in the wire body are the extremely fine coaxial lines; or, a part of the signal lines in the wire body are the extremely fine coaxial lines, and another part of the signal lines are electronic lines different from the extremely fine coaxial lines.

7. The HDMI cable according to any one of claims 1 to 6, characterized in that: The ends of the signal lines in the line body are connected to the corresponding signal pins of the PCB board by welding.

8. The HDMI cable according to any one of claims 1 to 6, characterized in that: At least one end of the wire body is conductively connected to the corresponding HDMI connector via a connector, the connector comprising a first part and a second part, the first part being connected to the end of the wire body, the shielding layer of the extremely fine coaxial line in the wire body being conductively connected to the outer shell of the first part, the second part being connected to a PCB board disposed on the HDMI connector, the first part and the second part being detachably connected, the outer shell of the first part being conductively connected to the grounding pin of the PCB board, and the diameter of the smallest hole through which the first part can pass is smaller than the diameter of the smallest hole through which the HDMI connector can pass.

9. The HDMI cable according to claim 8, characterized in that: The connector is an ultra-fine coaxial connector; And / or, both ends of the wire are conductively connected to the corresponding HDMI connector through a connector.

10. An HDMI device, characterized in that: Comprising at least one HDMI cable according to any one of claims 1 to 9.

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