A USB Type-C to HDMI audio / video cable with PD charging function

Abstract

The utility model belongs to audio and video adapter technical field, and disclose a kind of USB type-C to HDMI audio and video connecting line with PD charging function, to solve the problem that existing adapter cannot consider audio and video transmission and equipment charging. It includes USB type-C male interface, USB type-C data wire, enlarged structural block, HDMI male interface and PD fast charging female mouth. USB type-C male interface and data wire adopt DisplayPort video protocol and PD fast charging protocol;Enlarged structural block is built-in audio and video conversion and PD fast charging chip, can be converted into HDMI format with DisplayPort signal;PD fast charging female mouth is connected with data wire through independent circuit, realizes side projection side charging. Wire adopts 9-19 wire core design, outer wrapping flexible plastic sheath, interface is equipped with wear-resistant sleeve and antiskid structure. The utility model is separated by signal and power supply channel design, while ensuring high-definition audio and video transmission, solve the video source equipment endurance problem, and structure wear-resistant durable, applicable to the connection scene of multiple portable equipment and display terminal.

Description

Technical Field

[0001] This utility model relates to the field of video adapter cable technology, specifically a USB Type-C to HDMI audio and video connection cable with PD charging function. Background Technology

[0002] With the rapid development of mobile smart device technology, portable devices such as handheld game consoles, smartphones, tablets, and thin and light laptops have become core tools for consumers' daily entertainment, work, and content sharing. Although these devices have powerful computing and content output capabilities, their screen sizes are generally small due to portability requirements (e.g., handheld game console screens are mostly 6-8 inches, and mobile phone screens are mostly 6-7 inches). In multi-person scenarios (such as family movie viewing, team project discussions, and game sharing at friends' gatherings), small screens cannot meet the needs of multiple people watching simultaneously, and the display of image details is also significantly limited. Consumers' demand for "large-screen projection" is becoming increasingly urgent.

[0003] Currently, most devices capable of large-screen displays (such as projectors, traditional LCD monitors, televisions, and commercial large screens) still primarily use traditional signal interfaces, supporting only mature signal protocols like HDMI, DP, and VGA, while being incompatible with newer interface protocols such as USB Type-C and Thunderbolt. This "interface gap" prevents portable devices from directly connecting to large-screen display devices, necessitating the use of adapter cables as signal conversion media to convert the DisplayPortAlt Mode signal (USB Type-C interface) output by the portable device into HDMI or other signals recognizable by the large-screen device, thus enabling image projection.

[0004] However, existing adapter cables lack practicality and fail to fully meet the actual usage scenarios of users. On the one hand, in pursuit of portability and a minimalist appearance, current mainstream handheld game consoles, mobile phones, and thin and light laptops all adopt a "single USB Type-C interface" design, which simultaneously handles charging, data transfer, and video output. However, traditional adapter cables only have the single capability of "signal conversion." When a device is connected to a large-screen device as a video source via an adapter cable, the interface is occupied by the adapter cable, and the device lacks an additional charging port to power it. In actual use, this deficiency directly leads to continuous power consumption of the video source device. If users engage in prolonged screen mirroring (such as watching a movie for 2-3 hours or conducting a conference presentation), the device is prone to power depletion and interruption, affecting not only the continuity of content sharing but also potentially causing the loss of unsaved files due to sudden power outages, causing significant inconvenience to users. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a USB Type-C to HDMI audio / video cable with PD charging function, thereby solving the power consumption problems of video source devices when using adapter cables as mentioned in the background art.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a USB Type-C to HDMI audio / video cable with PD charging function, comprising:

[0007] USB Type-C male connector, wherein the USB Type-C male connector is fixedly mounted on a plastic or metal structure;

[0008] The USB type-C data cable is located on the side of the structure away from the USB type-C male connector, and the USB type-C data cable is electrically connected to the USB type-C male connector.

[0009] An enlarged structural block is provided at the other end of the USB type-C data cable. The enlarged structural block contains an audio / video conversion and PD fast charging chip, and the USB type-C data cable is electrically connected to the audio / video conversion and PD fast charging chip.

[0010] An HDMI male connector is fixedly located at the end of the enlarged structural block away from the USB type-C data cable, and the HDMI male connector is electrically connected to the audio / video conversion chip.

[0011] The PD fast charging female port is located on one side of the enlarged structural block corresponding to the USB type-C data cable, and the PD fast charging female port is electrically connected to the USB type-C data cable.

[0012] Preferably, the USB type-C data cable has nine to nineteen wires.

[0013] Preferably, the USB type-C data cable has a cable sheath on its outer side.

[0014] Preferably, a small wear-resistant sleeve is fixedly provided on the outer side of the structure.

[0015] Preferably, a large wear-resistant sleeve is provided on the outer side of the enlarged structural block, and both the small wear-resistant sleeve and the large wear-resistant sleeve are made of wear-resistant plastic material.

[0016] Preferably, the large wear-resistant sleeve is provided with anti-slip texture.

[0017] Preferably, the large wear-resistant sleeve has a mating interface on the side opposite to the HDMI male connector, and the enlarged structural block has a mating protrusion corresponding to the mating interface.

[0018] Compared with the prior art, this utility model provides a USB Type-C to HDMI audio / video connection cable with PD charging function, which has the following advantages:

[0019] This USB Type-C to HDMI audio / video cable with PD charging function features a USB Type-C male connector, a USB Type-C data cable, an enlarged structural block with a conversion chip, an HDMI male connector, and a PD fast charging female port. Based on the DisplayPort video protocol and PD fast charging protocol, it can convert video signals output from devices such as handheld game consoles, mobile phones, tablets, and laptops into HDMI format. It can directly connect to HDMI-compatible projectors, monitors, and TV screens, and continuously charge the video source device during use, preventing the video source device from running out of power during prolonged large-screen viewing. It is convenient to use, connects directly, and features wear-resistant sleeves at the connectors to prevent wear and tear over time, resulting in a long service life and high practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the enlarged structural block and the large wear-resistant sleeve of this utility model.

[0024] In the diagram: 1. USB Type-C male connector; 2. USB Type-C data cable; 3. Enlarged structural block; 4. HDMI male connector; 5. PD fast charging female port; 6. Cable sheath; 7. Small wear-resistant sleeve; 8. Large wear-resistant sleeve; 9. Anti-slip texture; 10. Connecting interface; 11. Connecting protrusion. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model provides a technical solution:

[0027] A USB Type-C to HDMI audio / video cable with PD charging function includes:

[0028] USB Type-C Male Interface 1, which is fixedly mounted on a plastic or metal structure;

[0029] USB type-C data cable 2, USB type-C data cable 2 is disposed on the side of the structure away from USB type-C male connector 1, and USB type-C data cable 2 is electrically connected to USB type-C male connector 1;

[0030] Enlarged structural block 3 is located at the other end of the USB type-C data cable 2. Enlarged structural block 3 contains an audio / video conversion and PD fast charging chip, and the USB type-C data cable 2 is electrically connected to the audio / video conversion and PD fast charging chip. The device is based on the DisplayPort video protocol and PD fast charging protocol, and can convert DisplayPort signals to HDMI format, which is convenient for direct connection to HDMI-enabled devices such as projectors, monitors, and TV screens. The audio / video conversion chip can use different chips according to different resolutions, which is convenient for producing different levels of products. That is, each resolution uses a different chip, and multiple models of products can be made. Consumers can purchase the corresponding resolution model of audio / video connection cable according to their needs.

[0031] The HDMI male connector 4 is fixedly mounted on one end of the enlarged structural block 3 away from the USB type-C data cable 2. The HDMI male connector 4 is electrically connected to the audio / video conversion chip. In this utility model, the pin connections of the interface follow the publicly available interface definitions. The specific circuit connections between the audio / video conversion chip and the PD fast charging chip and the interface are all existing technologies. The wiring can be done according to the chip manual. There are no limitations on the audio / video conversion chip and the PD fast charging chip and the algorithm. The methods commonly used by those skilled in the art are applicable. Here, a 4K solution is recommended, using Analogix ANX7688, which supports HDMI 2.0 and has good compatibility, especially suitable for various mobile phones and tablets.

[0032] The PD fast charging female port 5 is located on one side of the enlarged structural block 3 corresponding to the USB type-C data cable 2, and is electrically connected to the USB type-C data cable 2. An auxiliary chip may or may not be included in the fast charging cable; if included, it is placed inside the enlarged structural block 3.

[0033] Furthermore, the USB Type-C data cable 2 contains nine to nineteen wires. Two typical configurations are recommended here: sixteen wires consist of eight differential pairs + four power supply wires + four auxiliary signal wires; nineteen wires consist of eight differential pairs + four power supply wires + four auxiliary signal wires + two compatibility wires + one VCONN power supply wire.

[0034] Furthermore, the USB Type-C data cable 2 is provided with a cable sheath 6 on its outer side. The cable sheath 6, the enlarged structural block 3, and the plastic structure can all be made of the same flexible plastic material. Using the same material facilitates connection and results in a more precise connection. This allows the outer cable sheath 6 to bear more force and prevents stress on the core wire.

[0035] Furthermore, a small wear-resistant sleeve 7 is fixedly installed on the outside of the structure.

[0036] Furthermore, a large wear-resistant sleeve 8 is provided on the outer side of the enlarged structural block 3. The small wear-resistant sleeve 7 and the large wear-resistant sleeve 8 are made of wear-resistant plastic material. The main function of the small wear-resistant sleeve 7 and the large wear-resistant sleeve 8 is to protect the relatively soft internal structure, provide it with good mechanical properties, and be wear-resistant and durable, thus greatly improving the service life of the conversion line.

[0037] Furthermore, the large wear-resistant sleeve 8 is equipped with anti-slip texture 9. The anti-slip texture 9 improves the user experience.

[0038] Furthermore, a mating interface 10 is provided on the side of the large wear-resistant sleeve 8 facing away from the HDMI male connector 4, and a mating protrusion 11 corresponding to the mating interface 10 is provided on the enlarged structural block 3. The entire large wear-resistant sleeve 8 is fitted onto the enlarged structural block 3 from one side of the HDMI male connector 4. It can be permanently fixed with strong adhesive or with weaker adhesive. The mating interface 10 and the mating protrusion 11 facilitate the positioning and assembly of the large wear-resistant sleeve 8. If the internal chip of the conversion cable is damaged, the large wear-resistant sleeve 8 can be broken to expose the internal circuit structure for maintenance. After maintenance, a new large wear-resistant sleeve 8 can be used to re-fix it onto the enlarged structural block 3 by gluing.

[0039] Structural Description:

[0040] USB Type-C Male Interface 1: An interface for connecting video source devices, fixedly mounted on the structure, electrically connected to USB Type-C data cable 2, based on the DisplayPort video protocol and PD fast charging protocol, capable of transmitting DisplayPort format audio and video signals, providing signal input for subsequent conversion;

[0041] USB Type-C Data Cable 2: A cable used to transmit audio and video signals and power supply signals. It is located on the side of the structure away from the USB Type-C male connector 1. It is electrically connected to the audio and video conversion and PD fast charging chips in the USB Type-C male connector 1 and the enlarged structural block 3, respectively. It contains 9-19 wire cores and is wrapped with a wire sheath 6 on the outside.

[0042] Enlarged structural block 3: It carries the HDMI male connector 4 and is the core structural component for accommodating the audio / video conversion and PD fast charging chip. It is located at the other end of the USB type-C data cable 2 and has a built-in audio / video conversion and PD fast charging chip (Analogix ANX7688 recommended). It is electrically connected to the USB type-C data cable 2, the HDMI male connector 4 and the PD fast charging female port 5 respectively. It is covered with a large wear-resistant sleeve 8 on the outside and has a mating protrusion 11 that mates with the interface 10, providing installation space for signal conversion and power supply distribution.

[0043] HDMI male connector 4: An interface for connecting HDMI display devices. It is fixedly located at the end of the enlarged structure block 3 away from the USB type-C data cable 2. It is electrically connected to the audio / video conversion and PD fast charging chip inside the enlarged structure block 3. It can receive converted HDMI format audio and video signals (supports HDMI 2.0 standard) and realize signal output to devices such as projectors and monitors.

[0044] PD fast charging female port 5: A female port for connecting an external charger. It is located on the side of the enlarged structural block 3 corresponding to the USB type-C data cable 2 and is electrically connected to the USB type-C data cable 2. It can enable simultaneous screen projection and charging of video source devices through an independent circuit. The auxiliary chip (if set) needs to be placed inside the enlarged structural block 3.

[0045] Cable sheath 6: A protective layer wrapped around the outside of the USB type-C data cable 2. It uses the same flexible plastic material as the enlarged structural block 3 and the plastic structure. It can protect the core wire inside the cable and bear external force to avoid stress on the core wire, thus ensuring the stability of signal transmission.

[0046] Small wear-resistant sleeve 7: A wear-resistant component used to protect the structure of the USB type-C male connector 1. It is fixedly installed on the outside of the structure and is made of wear-resistant plastic material. It can reduce wear during plugging and unplugging and use, and extend the service life of the male connector and the structure.

[0047] Large wear-resistant sleeve 8: A wear-resistant component used to protect the enlarged structural block 3 and the internal chip. It is sleeved on the outside of the enlarged structural block 3, made of wear-resistant plastic material, and has anti-slip texture 9 and mating interface 10 that mates with mating protrusion 11. It can protect the internal circuit structure and facilitate assembly, positioning and subsequent maintenance and installation.

[0048] Anti-slip texture 9: The textured structure on the surface of the large wear-resistant sleeve 8 is used to increase the friction when the user holds or inserts / removes the large wear-resistant sleeve 8, improve the feel of use, and prevent slippage during operation;

[0049] Interface 10: A mating structure set on the side of the large wear-resistant sleeve 8 away from the HDMI male connector 4, which is adapted to the mating protrusion 11 on the enlarged structural block 3, for precise positioning when the large wear-resistant sleeve 8 is fitted, ensuring structural alignment during assembly;

[0050] Mud-fitting protrusion 11: A protrusion on the enlarged structural block 3 that cooperates with the mating interface 10 of the large wear-resistant sleeve 8 to assist the large wear-resistant sleeve 8 in completing positioning and assembly, and at the same time provides a structural basis for replacing the large wear-resistant sleeve 8 during later maintenance.

[0051] Working principle: When the USB Type-C male connector 1 is connected to a video source device such as a mobile phone or tablet, device identification and protocol negotiation are first completed through the configuration channel (CC pin) within the interface. The video source device outputs DisplayPort format audio and video signals through the 8 high-speed differential pairs (two sets of bidirectional transmission channels) within the USB Type-C data cable 2. The 9-19 core design ensures high-speed transmission bandwidth for video signals (supporting 8K video data) and enables parallel transmission of multiple signals through independent power supply lines (VBUS / GND) and auxiliary signal lines (SBU).

[0052] After the signal enters the enlarged structure block 3, the internal audio / video conversion and PD fast charging chip (such as Analogix ANX7688) undertakes the core processing tasks: on the one hand, it receives the DisplayPort signal and completes the protocol conversion, re-encodes it into a TMDS signal (3 data channels + 1 clock channel) according to the HDMI 2.0 standard, and outputs it to terminal devices such as monitors and projectors through the HDMI male interface 4 to achieve stable display of 4K and below resolutions; on the other hand, it separates the power supply signal through the internal circuit, leads the VBUS voltage (5V / 20V) of the video source device to the PD fast charging female port 5, and retains the protocol communication function of the CC pin.

[0053] In terms of charging functionality, the PD fast charging female port 5, through its electrical connection with the USB type-C data cable 2, establishes a power supply circuit independent of video transmission. When an external charger is connected to the PD fast charging female port 5, the charger's PD protocol chip and the video source device's built-in PD chip complete power negotiation (e.g., 20V / 3A = 60W) via the CC pin. The negotiation result is transmitted to the video source device through the circuit within the enlarged structural block 3, enabling simultaneous screen projection and charging. If an auxiliary chip is configured (placed within the enlarged structural block 3), power supply efficiency can be further optimized, supporting dynamic power adjustment (e.g., automatically adjusting the charging current based on the video source device's battery level).

[0054] The hardware structure design ensures operational stability from the perspectives of mechanics and signal integrity: the wire sheath 6, the enlarged structural block 3, and the plastic structure all use the same flexible plastic material, and the integrated molding reduces impedance changes during signal transmission; the small wear-resistant sleeve 7 and the large wear-resistant sleeve 8 (including anti-slip texture 9) respectively enhance the bending resistance of the USB type-C male connector 1 and the enlarged structural block 3, avoiding wire breakage caused by frequent plugging and unplugging; the positioning design of the interface 10 and the mating protrusion 11 ensures precise matching between the large wear-resistant sleeve 8 and the internal circuitry, protecting the conversion chip from physical damage and providing a removable base for later maintenance.

[0055] Throughout the entire workflow, video transmission and charging functions operate in parallel through independent signal channels without interfering with each other: the high-speed differential pair focuses on low-latency transmission of audio and video signals, while the power supply line and auxiliary signal line ensure PD protocol communication and power delivery, ultimately achieving a "plug and play" user experience—meeting the needs of multiple people sharing large-screen content and solving the problem of insufficient power for video source devices caused by prolonged use.

[0056] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A USB Type-C to HDMI audio / video cable with PD charging function, comprising: USB type-C male connector (1), wherein the USB type-C male connector (1) is fixedly mounted on a plastic or metal structure; USB type-C data cable (2), the USB type-C data cable (2) is disposed on the side of the structure away from the USB type-C male connector (1), and the USB type-C data cable (2) is electrically connected to the USB type-C male connector (1); Enlarged structural block (3), the enlarged structural block (3) is disposed at the other end of the USB type-C data cable (2), the enlarged structural block (3) is provided with an audio and video conversion and PD fast charging chip, and the USB type-C data cable (2) is electrically connected to the audio and video conversion and PD fast charging chip; HDMI male connector (4), the HDMI male connector (4) is fixedly disposed at one end of the enlarged structural block (3) away from the USB type-C data cable (2), and the HDMI male connector (4) is electrically connected to the audio and video conversion chip; PD fast charging female port (5) is located on the side of the enlarged structural block (3) corresponding to the USB type-C data cable (2), and the PD fast charging female port (5) is electrically connected to the USB type-C data cable (2).

2. The USB Type-C to HDMI audio / video cable with PD charging function according to claim 1, characterized in that, The USB type-C data cable (2) has nine to nineteen wire cores.

3. The USB Type-C to HDMI audio / video cable with PD charging function according to claim 2, characterized in that, The USB type-C data cable (2) is provided with a cable sheath (6) on the outside.

4. The USB Type-C to HDMI audio / video cable with PD charging function according to claim 1, characterized in that, A small wear-resistant sleeve (7) is fixedly installed on the outside of the structure.

5. A USB Type-C to HDMI audio / video cable with PD charging function according to claim 4, characterized in that, The enlarged structural block (3) is provided with a large wear-resistant sleeve (8) on the outside, and the small wear-resistant sleeve (7) and the large wear-resistant sleeve (8) are made of wear-resistant plastic material.

6. A USB Type-C to HDMI audio / video cable with PD charging function according to claim 5, characterized in that, The large wear-resistant sleeve (8) is provided with anti-slip texture (9).

7. A USB Type-C to HDMI audio / video cable with PD charging function according to claim 5, characterized in that, The large wear-resistant sleeve (8) has a mating interface (10) on the side away from the HDMI male connector (4), and the enlarged structural block (3) has a mating protrusion (11) corresponding to the mating interface (10).

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