CN201252166Y - HDMI cable structure with protect function - Google Patents

Abstract

An HDMI cable structure with protection circuit, comprising: the circuit board comprises a first connector, a circuit board, a cable and an outer coating body. The first connector is used for being plugged in the HDMI connecting port of the playing end or the receiving end. The circuit board is electrically connected with the pins of the first connector and is provided with a protection component. The cable is electrically connected with the circuit board and is used for transmitting the output signal of the playing end to the receiving end. The outer coating body is arranged on the cable, the circuit board and the first connecting head, and enables the first connecting head part to be in an exposed state so as to be electrically connected with the HDMI connecting port of the playing end or the receiving end. When the first connector and the second connector of the HDMI cable are plugged into the HDMI connecting port of the playing end or the receiving end, the generated instantaneous over-current or surge signal is blocked by the protection circuit, so that the electronic device of the receiving end or the playing end is prevented from being damaged.

Description

HDMI cable structure with protection function

technical field

The utility model relates to a cable, in particular to a cable structure of a high-definition multimedia transmission interface (High-Definition Multimedia Interface, HDMI) with a protection function.

Background technique

HDMI stands for High Definition Multimedia Interface. The HDMI interface can provide data transmission bandwidth up to 5Gbps, and can transmit uncompressed audio signals and high-resolution video signals. The HDMI interface can obtain high-quality video and audio signal transmission without digital/analog or analog/digital conversion before signal transmission. The advantage of using the HDMI interface is that only one HDMI cable is needed to transmit audio and video signals at the same time, which is different from the traditional need for multiple cables to connect, which greatly simplifies the installation of the home theater system.

The structure of the traditional HDMI cable has a cable, one end of the cable is electrically connected to the first connector, and the other end of the cable is electrically connected to the second connector, and the outer coating of the cable and the first and second connectors There is an outer cladding. When in use, the first connector is inserted into the HDMI connection port of the player, and the second connector is inserted into the HDMI connection port of the receiver. When the first connector or the second connector is plugged into the HDMI port, it is easy to generate a surge signal or an excessive reverse current, or when either end of the playback end or the receiving end is not working normally, it is also easy to generate a momentary overshoot. Large current or surge signal, and when the excessive current or surge signal is reversely input to the receiving end or the playback end, it is easy to cause damage to the electronic device at the receiving end or the playback end.

Utility model content

Therefore, the main purpose of the present invention is to add a protection circuit to the HDMI cable structure. When the first connector or the second connector of the HDMI cable is plugged and unplugged from the HDMI port, or when either end of the playback end and the receiver end is not working normally, the instantaneous excessive current or surge signal is generated It will be blocked by a protective circuit to avoid damage to the electronic device at the receiving end or playing end.

In order to achieve the above object, the HDMI cable structure with protective function provided by the present invention includes: a cable; a first connector electrically connected to one end of the cable; a circuit board connected to the first connector One end is electrically connected, and the circuit board is electrically connected with a protection component; an outer covering body, which covers the cable, the first connector and the circuit board, and makes the first connector Partially exposed.

According to the HDMI cable structure with protection function provided by the utility model, when an excessive current enters the HDMI cable during transmission, the protection component will block the excessive current from flowing, so as to avoid excessive current from flowing into the playback terminal or receiving end, causing damage to the electronic device at the playback end or receiver.

Description of drawings

Fig. 1 is an exploded schematic view of the HDMI cable of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the appearance of the HDMI cable of the present invention;

Fig. 3 is a schematic diagram of the HDMI connection port of the HDMI cable of the present invention, the receiving end and the player;

Fig. 4 is an exploded schematic view of another embodiment of the utility model;

Fig. 5 is a combined appearance schematic diagram of another embodiment of the present utility model.

[Description of main component symbols]

first connector 1

Second connector 1'

circuit board 2

Protection Components 21

cable 3

First Cable 31

Second cable 32

Outer cladding 4

Receiver 5

HDMI connection port 51

player 6

HDMI connection port 61

Outer shell 7

Cover 71

Bottom cover 72

Detailed ways

Below in conjunction with accompanying drawing, the technical content of the present utility model is described in detail.

Fig. 1 and Fig. 2 are the disassembly and appearance schematic diagrams of the HDMI cable of the present invention. As shown in the figure: the structure of the protective HDMI transmission cable of the present invention includes: a first connector 1 , a circuit board 2 , a cable 3 and an outer covering body 4 .

The first connector 1 is plugged into the HDMI connection port (not shown) of the playback end (not shown in the figure) or the receiving end;

The circuit board 2 is electrically connected to the pin (not shown in the figure) of the first connector 1 , and has a protection component 21 electrically connected to the circuit board 2 . The protection component 21 is a protection IC. When the signal transmitted by the cable 3 has an excessive current through the protection component 21, the protection component 21 can block the excessive current from entering, so as to prevent the excessive current from flowing into the playback end or the receiving end, causing damage to the electronic device at the playback end or the receiving end. damage.

The cable 3 is electrically connected to the circuit board 2 for transmitting the output signal of the player to the receiver.

After the cable 3 and the circuit board 2 are electrically connected to the first connector 1, they are placed in a mold (not shown in the figure), and plastic or rubber is injected into the mold, so that the cable 3 and the circuit board 2 can be connected to each other. An outer covering body 4 is formed on the first connecting head 1 . After the outer covering body 4 is manufactured, the first connector 1 is partly exposed to be electrically connected to the HDMI connection port of the player or receiver.

Fig. 3 is a schematic diagram of the HDMI cable of the present invention, the receiving end and the HDMI connection port of the player. As shown in the figure: the first connector 1 of the HDMI cable is plugged into the HDMI connection port 51 of the receiving end 5, and the second connector 1' is plugged into the HDMI connection port 61 of the player 6. When video and audio signals are transmitted, if there is an excessive current entering during the transmission process, the protection component 21 of the circuit board 2 will block the excessive current from flowing, so as to avoid excessive current flowing into the playback end or the receiving end, causing the playback end or receiving end to be damaged. The electronic device at the terminal is damaged.

Fig. 4 and Fig. 5 are exploded and assembled appearance diagrams of another embodiment of the present utility model. As shown in the figure: in this embodiment, the circuit board 2 is electrically connected to one end of the first cable 31 and the second cable 32 of the cable 3, and the other end of the first cable 31 is electrically connected to the first connector. 1. The first connector 1 and the first cable 31 are provided with an outer covering 4, and the other end of the second cable 32 is connected to the second connector 1'. An outer shell 7 is packaged on the circuit board 2, and the outer shell 7 is composed of an upper cover 71 and a bottom cover 72, and the outer shell 7 can protect the circuit board 2 from being impacted by external objects.

When an excessive current enters the HDMI cable during the transmission process, the protection component 21 of the circuit board 2 will block the excessive current from flowing, so as to avoid excessive current flowing into the playback end or the receiving end, causing damage to the electronic device at the playback end or the receiving end. damage.

The above-mentioned embodiments are only for the purpose of illustrating the utility model, rather than restricting the utility model. Those skilled in the art can make various equivalent structural changes without departing from the spirit and scope of the utility model. Within the scope of the utility model. The protection scope of the utility model is defined by the claims.

Claims (7)

1. A protective HDMI cable structure, comprising: Cable; a first connector electrically connected to one end of the cable; A circuit board, electrically connected to one end of the first connector, and a protection component is electrically connected to the circuit board; The outer covering body wraps the cable, the first connector and the circuit board, and makes the first connector partially exposed. 2. The HDMI cable structure with protection function according to claim 1, wherein the other end of the cable is electrically connected to a second connector. 3. The HDMI cable structure with protection function according to claim 1 or 2, wherein the protection component is a protection IC. 4. A protective HDMI cable structure, comprising: The cable has first and second cables; A circuit board, electrically connected to one end between the first and second cables, the circuit board is electrically connected to a protection component; an outer casing, which is combined on the outside of the circuit board; a first connector electrically connected to the other end of the first cable; The outer covering body wraps the first cable and the first connector, and exposes the first connector part. 5. The HDMI cable structure with protection function according to claim 4, wherein the other end of the cable is electrically connected to a second connector. 6. The HDMI cable structure with protection function according to claim 4 or 5, wherein the protection component is a protection IC. 7. The HDMI cable structure with protective function according to claim 4 or 5, wherein, the outer casing is composed of an upper cover and a lower cover.

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