TWM613619U - High speed transmission line - Google Patents

Abstract

This creation relates to the technical field of connecting wires, in particular to a high-speed transmission line, which includes a first shielding layer, a first insulating layer, a conductor layer, a second insulating layer, and a second shielding layer that are sequentially attached. The conductor layer includes a plurality of first shielding layers. A conductor, a plurality of the first conductors are arranged at intervals, and the cross section of the first conductor is circular. This creation provides a high-speed transmission line. The first conductor adopts a circular copper wire, which can greatly increase the transmission speed of signals, etc., and increase the application range of the transmission line flexible flat cable.

Description

High-speed transmission line

This creation relates to the technical field of connection lines, especially a high-speed transmission line.

Transmission line flexible flat cable, also known as flat cable, is a new type of signal cable made of insulating materials and extremely thin flat copper wires and pressed by high-tech automated equipment production lines. It is flexible, flexible, flexible, thin, and bulky. With the advantages of small size and fast heat dissipation, the current transmission lines are mostly used in electronic products such as computers and printers.

In servers or servers, there are very big requirements for high-speed data transmission. Therefore, data cables such as coaxial cables are basically used in the data transmission of servers or servers. These cables are relatively large in size and dissipate heat. Slow and not convenient enough to use. Therefore, how to improve the data transmission speed of the transmission line so that the advantages of the transmission line can be applied to the structure of the server or the server is a problem that needs to be solved at present.

This creation provides a high-speed transmission line in response to the problems of the prior art. The first conductor adopts a circular copper wire, which can greatly increase the transmission speed of signals and the like, and increase the application range of the transmission line flexible flat cable.

In order to solve the above technical problems, this creation adopts the following technical solution: a high-speed transmission line, including a first shielding layer, a first insulating layer, a conductor layer, a second insulating layer, and a second shielding layer that are attached in sequence, the first shielding layer The layer and the second shielding layer are in signal connection, the conductor layer includes a plurality of first conductors, and the plurality of first conductors are arranged at intervals, and the cross section of the first conductor is circular.

Preferably, the conductor layer further includes a plurality of second conductors, the cross section of the second conductor is rectangular, and the plurality of second conductors and the plurality of first conductors are arranged interspersedly.

Preferably, the first conductor includes a first front end, a first middle end, and a first rear end that are sequentially connected, and the first middle end is wrapped between the first insulating layer and the second insulating layer, The first front end and the first rear end are both exposed outside the first insulating layer and the second insulating layer; the second conductor includes a second front end, a second middle end, and a second rear At the end, the second middle end is wrapped between the first insulating layer and the second insulating layer, and the second front end and the second rear end are both exposed outside the first insulating layer and the second insulating layer .

Preferably, the first front end and/or the first rear end of the at least one first conductor includes a first shielded conductor and a second shielded conductor, and the first shielded conductor is signal-connected to the second shielded conductor; The first shielding conductor is signal-connected to the first shielding layer or the second shielding conductor is signal-connected to the second insulating layer.

Preferably, the second front end and/or the second rear end of the at least one second conductor includes a third shielded conductor and a fourth shielded conductor, and the third shielded conductor is in signal connection with the fourth shielded conductor; The third shielding conductor is signally connected to the first shielding layer or the fourth shielding conductor is signally connected to the second insulating layer.

Preferably, the high-speed transmission line further includes a protective sleeve, the inner surface of the protective sleeve is conductive, and the outer surface of the protective sleeve is insulated. The protective sleeve is sleeved on the outer surfaces of the first shielding layer and the second shielding layer, and the first shielding Both the second shielding layer and the second shielding layer are in signal connection with the inner surface of the protective sleeve.

Preferably, the first shielding layer is provided with an upper conductive portion, the second shielding layer is provided with a lower conductive portion, and both the upper conductive portion and the lower conductive portion are signal-connected to the inner surface of the protective cover.

Preferably, the first shielding layer and the second shielding layer are both aluminum foil composite layers.

Preferably, the first conductor is made of tin-plated copper wire, silver-plated copper wire or bare copper wire, and the second conductor is made of tin-plated copper wire, silver-plated copper wire or bare copper wire.

Preferably, the protective cover is made of aluminum foil Mylar or silver-plated aluminum foil Mylar or copper-plated aluminum foil Mylar.

The beneficial effects of this creation:

This creation provides a high-speed transmission line. The first conductor of the conductor layer uses a circular copper wire, which can reduce the capacitance effect of the conductor layer and increase the data transmission speed. Compared with the flat copper wire, the round copper wire The cable can greatly increase the transmission speed of the signal, so that the high-speed transmission line can be applied to the server or server, which increases the application range of the transmission line flexible flat cable. At the same time, the transmission line has a better heat dissipation effect than the cable. The work of the server or the server is more stable, and the round copper wire does not have the structure such as edges and corners, and can be better laminated with the first insulating layer and the second insulating layer.

In order to facilitate the understanding of those skilled in the art, the present creation will be further described below in conjunction with the embodiments and drawings, and the content mentioned in the implementation manners does not limit the creation. The creation will be described in detail below in conjunction with the accompanying drawings.

The high-speed transmission line provided by this embodiment, as shown in FIG. 1 and FIG. 2, includes a first shielding layer 1, a first insulating layer 2, a conductor layer, a second insulating layer 3, and a second shielding layer 4 that are sequentially attached. The first shielding layer 1 and the second shielding layer 4 are signal-connected, the conductor layer includes a plurality of first conductors 5, the plurality of first conductors 5 are arranged at intervals, and the cross section of the first conductor 5 is circular. Preferably, the first conductor 5 is made of tin-plated copper wire, silver-plated copper wire or bare copper wire. Wherein, the first shielding layer 1 is attached to the first insulating layer 2 through hot melt adhesive or self-adhesive, and the second shielding layer 4 is attached to the second insulating layer 2 through hot melt adhesive or self-adhesive adhesive. 3 Bonding, the first insulating layer 2 and the second insulating layer 3 are both bonded to the conductor layer by hot melt glue. Of course, in addition to hot melt glue and self-adhesive glue, other materials that can be used for bonding can also be used. And it is suitable for the adhesive in the structure of the flexible flat cable of the transmission line.

Specifically, the first conductor 5 of the conductor layer uses a circular copper wire, which can reduce the capacitive effect of the conductor layer and thereby increase the data transmission speed. Therefore, compared to a flat copper wire, a circular copper wire can be greatly improved. Improve the signal transmission speed, so that the high-speed transmission line can be applied to the server or server, increasing the application range of the transmission line flexible flat cable. At the same time, the transmission line has a better heat dissipation effect than the cable, which can make the server or the servo The work of the device is more stable, and the round copper wire does not have structures such as edges and corners, and can be better pressed with the first insulating layer 2 and the second insulating layer 3.

Preferably, the first shielding layer 1 and the second shielding layer 4 are made of materials with low dielectric constant, such as aluminum foil composite materials, which can effectively reduce the gap between the conductor layer and the first shielding layer 1 or the second shielding layer 4. The dielectric constant can further reduce the capacitance effect between the first conductor 5 and the first conductor 5, thereby having a good effect of high-speed data transmission, and can reduce the first shielding layer 1, the first insulating layer, and the conductor layer. , The heat generated between the second insulating layer and the second shielding layer 4, so that the transmission line of this embodiment not only has the function of high-speed data transmission, but also has a better heat dissipation function, and is more suitable for servers or servers and other devices .

A high-speed transmission line provided by this embodiment, as shown in Figures 3 and 4, the conductor layer also includes a number of second conductors 6, the cross section of the second conductor 6 is rectangular, a number of the second conductor 6 and a number of The first conductors 5 are interspersedly arranged. Preferably, the second conductor 6 is made of tin-plated copper wire, silver-plated copper wire or bare copper wire.

Specifically, the circular first conductor 5 and the flat second conductor 6 are interspersed and arranged, and the arrangement sequence is determined according to the actual product; in fact, each first conductor 5 and each second conductor 6 transmit different signals , The signal transmission of some electronic products may involve high speed and normal speed. Therefore, it is not suitable to set all the conductor layers as circular first conductors 5 or all flat second conductors 6. Therefore, according to the actual product, The conductor layer is set as a structure in which the first conductor 5 and the second conductor 6 are combined, which can better meet the different requirements of products.

This embodiment provides a high-speed transmission line, as shown in Figure 1, Figure 3 and Figure 4. The first conductor 5 includes a first front end 51, a first middle end 52, and a first back end 53, which are connected in sequence. The first middle end 52 is wrapped between the first insulating layer 2 and the second insulating layer 3, and the first front end 51 and the first rear end 53 are both exposed on the first insulating layer 2 and the second insulating layer. 3; the second conductor 6 includes a second front end 61, a second middle end 62, and a second rear end 63 that are connected in sequence, and the second middle end 62 is wrapped in the first insulating layer 2 and Between the second insulating layers 3, the second front end 61 and the second rear end 63 are both exposed outside the first insulating layer 2 and the second insulating layer 3.

Specifically, both ends of the first conductor 5 and the second conductor 6 are exposed and do not contact the first insulating layer 2 and the second insulating layer 3. The transmission line flexible flat cable in the prior art has only one side of its wire leaking out. Therefore, this type of transmission line flexible flat cable in the prior art usually needs to be connected to a circuit board or product through a corresponding connector, which leads to the need to produce a corresponding connector to use the transmission line flexible flat cable. In this high-speed transmission line, the two ends of the first conductor 5 and the second conductor 6 are directly exposed and can be soldered directly to the circuit board without going through the connector, so it is more convenient to use, and the use of the connector can be reduced. Certain production costs.

A high-speed transmission line provided by this embodiment, as shown in FIGS. 5 to 9, the first front end 51 and/or the first rear end 53 of at least one first conductor 5 includes a first shielded conductor 54 and a second shielded conductor 55 , The first shielding conductor 54 is signal-connected to the second shielding conductor 55; the first shielding conductor 54 is signal-connected to the first shielding layer 1, or the second shielding conductor 55 is signal-connected to the second insulating layer connection.

When the second conductor 6 is provided, the second front end 61 and/or the second rear end 63 of the at least one second conductor 6 includes a third shielded conductor 64 and a fourth shielded conductor 65. The third shielded conductor 64 is in signal connection with the fourth shield conductor 65; the third shield conductor 64 is in signal connection with the first shield layer 1 or the fourth shield conductor 65 is in signal connection with the second insulating layer.

Specifically, in order to improve the anti-EMI (electromagnetic shielding) effect of the high-speed transmission line, take the first conductor 5 as an example, as shown in FIGS. 8 and 9, a first shielding conductor 54 and a second shielding conductor are provided on the first conductor 5. 55. The first shielding conductor 54 and the second shielding conductor 55 can have a parallel positional relationship or a positional relationship other than parallel, as long as the signal connection between the first shielded conductor 54 and the second shielded conductor 55 can be realized. Any one of the first shielding conductor 54 and the second shielding conductor 55 is signally connected to the first shielding layer 1 or the second shielding layer 4.

In this embodiment, the first shielding layer 1 and the second shielding layer 4 are both aluminum foil composite layers, and a PET (polyester resin) on the surface of the first shielding layer 1 and the second shielding layer 4 is burned off by laser. , The aluminum layer is exposed, that is, the upper conductive portion 11 and the lower conductive portion (not shown in the figure) are exposed aluminum layers, and then the first shielding conductor 54 or the second shielding conductor 55 is folded back to make the first shielding conductor 54 Or the second shielding conductor 55 is in contact with the exposed aluminum layer to realize signal connection. Finally, the protective sleeve 7 is sleeved outside the first shielding layer 1 and the second shielding layer 4. The protective sleeve 7 is made of aluminum foil Mylar or plating. It is made of silver aluminum foil Mylar or copper-plated aluminum foil Mylar, so the inner surface of the protective cover 7 is conductive and the outer surface is insulated, so it realizes the function of signal connection between the first shielding layer 1 and the second shielding layer 4, and at the same time, the first shielding layer 1 is connected to the second shielding layer 4. The shielding conductor 54 or the second shielding conductor 55 and the exposed aluminum layer are protected in the protective sleeve 7, and the inner surface of the protective sleeve 7 is attached to the first shielding conductor 54 or the second shielding conductor 55 or the exposed aluminum layer to ensure The first shield conductor 54 or the second shield conductor 55 is in normal contact with the aluminum layer.

Of course, when the second conductor 6 is provided, the third shielding conductor 64 and the fourth shielding conductor 65 can also be provided on the second conductor 6. The third shielding conductor 64 and the fourth shielding conductor 65 can be in an overlapping relationship, such as 5 to 7, of course, positional relationships other than overlapping may also be used, as long as the effect of the signal connection between the third shielded conductor 64 and the fourth shielded conductor 65 is satisfied. The methods and effects of the third shielding conductor 64 and the fourth shielding conductor 65 are the same as those of the first shielding conductor 54 and the second shielding conductor 55. They both improve the anti-EMI performance of the transmission line of this embodiment and make the transmission line flexible and flat. The cable is more stable when in use, thereby improving the stability of product signal transmission.

In addition, the first shielding conductor 54, the second shielding conductor 55, the third shielding conductor 64, and the fourth shielding conductor 65 can all be set to one or more, which can be set according to actual requirements.

The above is only the preferred embodiment of this creation, and does not limit this creation in any form. Although the preferred embodiment of this creation is disclosed as above, it is not intended to limit this creation. Anyone familiar with the profession , Without departing from the scope of this creative technical solution, when using the above-disclosed technical content to make some changes or modification into equivalent embodiments with equivalent changes, provided that the content of this creative technical solution does not deviate from the content of the creative technical solution, it means the above Any simple modifications, equivalent changes and modifications made to the embodiments fall within the scope of the technical solution of this creation.

1: the first shielding layer 11: Upper conductive part 2: The first insulating layer 3: The second insulating layer 4: The second shielding layer 5: The first conductor 51: The first front end 52: first middle end 53: first rear end 54: The first shielded conductor 55: second shielded conductor 6: second conductor 61: second front end 62: second middle end 63: second rear end 64: third shielded conductor 65: Fourth shielded conductor 7: Protective sleeve

[Figure 1] A schematic diagram of the structure of this creation. [Fig. 2] is a front view of Fig. 1. [Figure 3] A schematic diagram of the breakdown structure of this creation. [Figure 4] This is a schematic diagram of the structure with the first conductor and the second conductor created by this author. [Figure 5] The structure diagram of the third shielded conductor, the fourth shielded conductor and the upper conductive part of this creation. [Figure 6] This is a schematic diagram of the structure of the upper overlapping conductor connected to the upper conductive part. [Figure 7] This is a schematic diagram of the structure with a protective cover created for this creation. [Figure 8] The schematic diagram of the structure of the first shielded conductor and the second shielded conductor of this creation. [Fig. 9] is a cross-sectional view at AA in Fig. 8. [Fig.

1: the first shielding layer

2: The first insulating layer

3: The second insulating layer

4: The second shielding layer

5: The first conductor

Claims (10)

A high-speed transmission line, comprising a first shielding layer, a first insulating layer, a conductor layer, a second insulating layer, and a second shielding layer that are sequentially laminated, and the first shielding layer and the second shielding layer are connected in signal, and are characterized in that: The conductor layer includes a plurality of first conductors, the plurality of first conductors are arranged at intervals, and the cross section of the first conductor is circular. The high-speed transmission line according to claim 1, wherein the first conductor includes a first front end, a first middle end, and a first back end that are connected in sequence, and the first middle end is wrapped around the first Between an insulating layer and a second insulating layer, the first front end and the first rear end are both exposed outside the first insulating layer and the second insulating layer. A high-speed transmission line according to claim 1, characterized in that: the conductor layer further includes a plurality of second conductors, the cross section of the second conductor is rectangular, and the plurality of second conductors and the plurality of first conductors are interspersed arrangement. A high-speed transmission line according to claim 3, wherein the second conductor includes a second front end, a second middle end, and a second rear end that are connected in sequence, and the second middle end is wrapped around the first Between an insulating layer and a second insulating layer, the second front end and the second rear end are both exposed outside the first insulating layer and the second insulating layer. A high-speed transmission line according to claim 2, characterized in that: the first front end and/or the first rear end of the at least one first conductor includes a first shielded conductor and a second shielded conductor, and the first shielded conductor Signal connection with the second shielding conductor; signal connection of the first shielding conductor with the first shielding layer or signal connection of the second shielding conductor with the second insulating layer. A high-speed transmission line according to claim 4, wherein the second front end and/or the second rear end of the at least one second conductor includes a third shielded conductor and a fourth shielded conductor, and the third shielded conductor Signal connection with the fourth shielding conductor; signal connection with the third shielding conductor and the first shielding layer or signal connection with the fourth shielding conductor and the second insulating layer. The high-speed transmission line according to claim 1, characterized in that: the high-speed transmission line further includes a protective sleeve, the inner surface of the protective sleeve is conductive, the outer surface of the protective sleeve is insulated, and the protective sleeve is sleeved on the first shielding layer and the second shielding layer. The outer surface of the shielding layer, the first shielding layer and the second shielding layer are both signal-connected to the inner surface of the protective sleeve. A high-speed transmission line according to claim 7, characterized in that: the first shielding layer is provided with an upper conductive portion, the second shielding layer is provided with a lower conductive portion, and the upper conductive portion and the lower conductive portion are both connected to each other. The signal connection on the inner surface of the protective sleeve. The high-speed transmission line according to claim 1, wherein the first shielding layer and the second shielding layer are both aluminum foil composite layers. A high-speed transmission line according to claim 3, characterized in that: the first conductor is made of tin-plated copper wire, silver-plated copper wire or bare copper wire, and the second conductor is made of tin-plated copper wire, silver-plated copper Wire or bare copper wire.

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