CN201282237Y - Choke coil signal adjusting device and connector using the same - Google Patents

Abstract

A choke coil signal adjusting device comprises a circuit board arranged in a connector, wherein a plurality of transmission circuits are arranged on the circuit board, one side of each transmission circuit is a signal input end, the other side of each transmission circuit is a signal output end, and a plurality of choke coils are correspondingly arranged in series in the middle of each transmission circuit. And the connector comprises the choke coil signal adjusting device, the signal input end is electrically connected with the input terminal of the connector, and the signal output end is electrically connected with the output terminal of the connector. Therefore, the balanced transmission signal can be adjusted from the non-isochronous state to the isochronous signal, and the signal transmission quality can be effectively improved.

Description

Choke coil signal conditioning device and connector using the same

technical field

The utility model relates to an electric connector, in particular to a choke coil signal adjustment device and a connector using the device.

Background technique

The connector has a wide range of applications. It is an important bridge connecting circuits and signals, and is an important component to maintain the normal and stable functions of electronic products. With the continuous development of electronic products in the direction of light, thin, short and small, the internal system processing capacity is also getting stronger, such as audio-visual discs, digital multi-functional discs, high-resolution digital TVs, audio-visual telephones and video conferencing in recent years. In order to allow users to enjoy better quality, these new systems have adopted a fully digitalized approach to process audio and video information, and the speed of the transmitted digital signals is constantly increasing (signals can be uncompressed). The planning and design of the connector must also develop in the direction of "fine pitch" and "high frequency".

However, high-speed transmission will cause problems such as matching impedance, crosstalk noise, transmission delay, signal attenuation, electromagnetic wave interference, etc., which will easily cause noise or interruption during playback of video signals or audio signals, greatly affecting the quality of listening or watching Reduced; and it is easy to cause important data to be lost during network communication. These problems must be further solved effectively, so that the quality of the connector can be improved to meet market demand.

As shown in Figure 1, the circuit boards inside the traditional existing cable connectors have only generally planned transmission lines without any good signal adjustment devices preset, so they are used in high When the frequency is used for balanced transmission, the state of unequal timing is likely to occur between the pins, which seriously affects the signal transmission effect, which is its main disadvantage.

Contents of the invention

In view of this, the inventor of the utility model is to study and improve the above-mentioned deficiency,

In order to achieve the aforementioned purpose, the utility model provides a choke coil signal adjustment device, which includes a circuit board, on which a plurality of transmission circuits are arranged, one side of the transmission circuit is a signal input terminal, and the other side is a signal input terminal. The signal output terminal is characterized in that a plurality of choke coils are arranged in corresponding series in the middle of the plurality of transmission circuits.

The utility model also provides a connector, the connector includes a choke coil signal adjustment device, the signal adjustment device includes a circuit board, a plurality of transmission circuits are arranged on the circuit board, and one side of the transmission circuit is a signal input terminal , the other side is the signal output end, and the middle of the complex transmission circuit is provided with a plurality of choke coils; the signal input end is electrically connected to the input terminal of the connector, and the signal output end is electrically connected to the output terminal of the connector sexual connection.

The beneficial effect of the utility model is that its structural design is simple and practical, and the balanced transmission signal can be adjusted from the non-isochronous state to the isochronous signal, which can effectively improve the signal transmission quality, and is especially suitable for high-frequency signal transmission .

Description of drawings

Fig. 1 is the plan view of existing structure;

Fig. 2 is the plan view of the utility model;

Fig. 3 is a perspective view of the utility model;

Fig. 4 is a sectional view of the cable connector made by the utility model;

Fig. 5 is a sectional view of a connector adapter made of the utility model;

Fig. 6 is a sectional view of another connector adapter of the present invention;

Fig. 7 is a circuit diagram of the utility model.

Explanation of reference signs:

10-signal adjustment device; 20-circuit board; 21-transmission circuit; 22-input end; 23-output end; 30-choke coil; 31-shell; 32-pin; 40-cable connector; 41- Output terminal; 42-cable; 43-housing; 44-connector; 50-connector adapter; 51-output terminal; 52-input terminal; 53-housing; 54-connector; 55-connector.

Detailed ways

The composition content and other features of the present utility model will become clearer after reading the following detailed description of the embodiments in conjunction with the accompanying drawings.

As shown in Figures 2 to 7, a choke coil signal adjustment device 10 provided by the present invention includes a circuit board 20 on which a plurality of transmission circuits 21 are arranged, and one side of the transmission circuit 21 is used for signal input Terminal 22, the other side is the signal output terminal 23, and its improvement features are:

The middle of the complex transmission circuit 21 is provided with a plurality of choke coils 30 in corresponding series; during implementation, as shown in Fig. There are two choke coils 30 inside, and four pins 32 protrude outside, so that they are respectively connected to the reserved positions of two adjacent transmission circuits 21 .

Please refer to FIGS. 2 to 4. During manufacture, the choke coil signal adjustment device 10 can be directly installed on a cable connector 40, and the circuit board 20 can be buried inside the cable connector 40 to transmit the circuit 21. The output end 23 of the transmission circuit 21 is electrically connected to the output terminal 41 of the connector, and the other input end 22 of the transmission circuit 21 is electrically connected to the cable 42 . When assembled, the circuit board 20 is located inside the cable connector 40, and the cable connector 40 is provided with an outer casing 43 made of plastic material; the terminal of the casing 43 is provided with at least one output terminal joint 44.

As shown in Figures 5 and 6, the choke coil signal adjustment device 10 can also be directly arranged on the connector adapter 50, and the circuit board 20 is buried inside the connector adapter 50 to transmit the output end of the circuit 21. 23 is electrically connected to the output terminal 51 of the connector adapter, and the other input end 22 of the transmission circuit 21 is electrically connected to the input terminal 52 of the connector adapter.

When assembled, the connector adapter 50 includes a built-in circuit board 20 ; an outer casing 53 made of plastic material; and at least one output terminal joint 54 and one input terminal joint 55 .

Wherein, in the connector adapter 50, the output terminal joints 54 and input terminal joints 55 at both ends can be set to be of the same type, that is, the two sides are the same male (or the same female) as shown in Figure 5, or the two sides are set as the male and female are different from each other as shown in Figure 6. The different types are convenient for users to choose and use in various changes, so that ordinary cable connectors can also enjoy the functions of the signal adjustment device 10 of the present invention through the connector adapter 50.

Thereby, as shown in Figures 2 to 7, during application, the connector adapter 50 or the output terminal joint 54 or 44 of the cable connector 40 made by the signal adjustment device 10 of the present invention can be used for general display devices Such as LCD TV or plasma TV (not shown), or signal repeater and other audio-visual equipment are connected (not shown). Wherein, because the middle of the transmission circuit 21 on the circuit board 20 of the utility model is equipped with a choke coil 30 correspondingly in series, it can eliminate the unequal timing that originally occurred in the existing structure when performing a balanced transmission signal at a high frequency. The state is adjusted to an isochronous signal, and a better signal adjustment effect can indeed be obtained after testing.

Thereby, it is proved that the signal adjustment device 10 of the present invention has a very good signal adjustment function, which can effectively improve the quality of signal transmission, so as to avoid noise or interruption during high-frequency transmission of image signals or audio signals during playback, or Problems such as loss of important data during network communication.

To sum up, the utility model has a simple and practical structure, its functions are far superior to conventional ones, and it has creativity and industrial application value. A utility model patent application is filed in accordance with the law.

The above specific implementations are only preferred embodiments of the present utility model, which are illustrative rather than restrictive to the present utility model. Those skilled in the art may make changes, modifications or even equivalents without departing from the spirit and scope of the present utility model, and these changes will all fall within the protection scope of the claims of the present utility model.

Claims (8)

1. A choke coil signal adjustment device, the signal adjustment device comprises a circuit board, on the circuit board is provided with a plurality of transmission circuits, one side of the transmission circuit is a signal input end, and the other side is a signal output end, it is characterized in that: A plurality of choke coils are provided in corresponding series in the middle of the complex transmission circuit. 2. The choke coil signal adjustment device according to claim 1, characterized in that, the complex choke coils are common mode choke coils, which are composed of a shell and two choke coils that are provided with cross-ripples inside and As a result, four pins protrude from the outside to respectively bridge the reserved positions of two adjacent transmission circuits. 3. A connector, characterized in that the connector includes a choke coil signal adjustment device, the signal adjustment device includes a circuit board, a plurality of transmission circuits are arranged on the circuit board, and one side of the transmission circuit is a signal input terminal , the other side is the signal output end, and the middle of the complex transmission circuit is provided with a plurality of choke coils; the signal input end is electrically connected to the input terminal of the connector, and the signal output end is electrically connected to the output terminal of the connector sexual connection. 4. The connector according to claim 3, wherein the connector is a cable connector, the circuit board is buried inside the cable connector, and the signal output end of the transmission circuit is electrically connected to the output terminal of the connector. The signal input terminal of the transmission circuit is electrically connected with the cable. 5. The connector according to claim 3, wherein the connector is a connector adapter, the circuit board is buried inside the connector adapter, and the signal output end of the transmission circuit is connected to the output terminal of the connector adapter. are electrically connected, and the signal input end of the transmission circuit is electrically connected with the input terminal of the connector adapter. 6. The connector according to claim 4, characterized in that, the cable connector includes a built-in circuit board; an outer cover shell made of plastic material; and at least one output terminal connector; wherein , the circuit board is placed inside the housing, and the signal output terminal is electrically connected to the output terminal. 7. The connector according to claim 5, characterized in that, the connector adapter has joints of the same type at both ends. 8 . The connector according to claim 5 , wherein the connector adapter is provided with different male and female connectors at both ends.

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