CN214754587U - Data line, cable and subassembly that charges - Google Patents

Abstract

The application provides a data line, cable and subassembly that charges, this data line includes joint and cable. The connector comprises a first signal pin and a second signal pin. The cable is connected with the joint, and the cable includes coaxial signal line, and coaxial signal line includes the inner conductor and encircles the outer conductor layer in the inner conductor periphery, and outer conductor layer and inner conductor interval set up, correspond respectively and connect first signal pin and second signal pin, and then realize the transmission of signal. The technical scheme that this application provided can reduce the line footpath of data line.

Description

Data line, cable and subassembly that charges

Technical Field

The application relates to the technical field of communication cables, in particular to a data line, a cable and a charging assembly.

Background

With the popularization of electronic devices, USB data lines are widely used. In the current market, most of the signal wires in the data wires adopt twisted pair wire structures. When the cable of the data line exceeds more than 2m, in order to meet the requirements of parameters such as attenuation, characteristic impedance and the like in relevant test standards, the conductor of the signal line needs to be enlarged, the diameter of the signal line is thickened, the overall line diameter of the data line is thickened, the hand feeling is relatively rigid, the resilience is poor, and after the cable is used for a period of time, the data line is more prone to breakage and damage, and data transmission failure is caused.

SUMMERY OF THE UTILITY MODEL

The application provides a data line, cable and subassembly that charges, has solved the too big technical problem of line diameter of data line among the prior art.

The first technical scheme adopted by the application is as follows: a data line is provided that includes a header and a cable. The connector comprises a first signal pin and a second signal pin. The cable is connected with the joint, and the cable includes coaxial signal line, and coaxial signal line includes the inner conductor and encircles the outer conductor layer in the inner conductor periphery, and outer conductor layer and inner conductor interval set up, correspond respectively and connect first signal pin and second signal pin, and then realize the transmission of signal.

Optionally, the coaxial signal line further comprises a first insulating layer disposed between the inner conductor and the outer conductor layer, the first insulating layer having a concentricity with respect to the inner conductor of greater than 90%.

Optionally, the first insulating layer includes a first sub-layer and a second sub-layer formed by a two-layer extrusion process, and at least one of the first sub-layer and the second sub-layer is a foamed layer.

Optionally, both the first and second sub-layers are foamed layers.

Optionally, the first sub-layer is a foamed layer and the second sub-layer is a skin layer.

Optionally, the coaxial signal line further includes an inner shielding layer and a second insulating layer sequentially surrounding the outer conductor layer.

Optionally, the number of the connectors is at least two, and the two connectors are respectively connected to two ends of the same coaxial signal line.

Optionally, the cable includes at least one of a power line, a ground line, and a cc (configuration channel) line, and is twisted together with the coaxial signal line.

The second technical scheme adopted by the application is as follows: the cable comprises a coaxial signal line, a first end of the coaxial signal line is connected with the inner conductor, and a second end of the coaxial signal line is connected with the outer conductor; the signal connection ports of the inner conductor and the outer conductor layer are respectively used for corresponding to the first signal pin and the second signal pin of the connector, so that signal transmission is realized.

The third technical scheme adopted by the application is as follows: a charging assembly is provided, which comprises a charging head and any one of the data lines, wherein the charging head is connected with the data line.

Compared with the prior art, the beneficial effect of this application: for the data line needs two signal line pair twists at least just can accomplish the transmission of signal, in the data line that this application provided, adopt coaxial signal line as the signal line, utilize the inner conductor of coaxial signal line and outer conductor layer to connect respectively first signal pin and second signal pin, and then realize the transmission of signal. Therefore, on the premise that the signal transmission rate is constant, the number of the signal lines in the data line provided by the application can be half of the number of the signal lines in the twisted-pair data line, so that the number of the signal lines in the data line can be effectively reduced, and the overall line diameter of the data line is reduced.

In addition, this application adopts the coaxial line as the signal line, can guarantee that the signal line has the advantage of low dielectric constant, and the reliability is high simultaneously.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an embodiment of a charging assembly of the present application;

FIG. 2 is a schematic structural diagram of an embodiment of a data line of the present application;

FIG. 3 is a schematic view of a structure of a connector of the data line shown in FIG. 2;

FIG. 4 is a cross-sectional view of an embodiment of the cable of the present application;

FIG. 5 is a schematic cross-sectional view of an embodiment of a cable of the present application;

fig. 6 is a cross-sectional view of the coaxial signal line of the cable of fig. 4.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive work are within the scope of the present application.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

As shown in fig. 1, fig. 1 is a schematic structural diagram of a charging assembly according to an embodiment of the present application. The charging assembly 400 may include a charging head 300 and a data line 200. The charging head 300 may be connected to the data line 200.

The charging head 300 may be a charging adapter, among others. Specifically, one side of the charging head 300 may be provided with at least one interface, which may be a USB interface, such as any one of USB Type-a, USB Type-B, USB Type-C, misro USB, for connecting with the connector of the data line 200. The other side of the charging head 300 may be provided with a plug for connection with a power source, and the electronic device can be charged and/or data can be transmitted through the data line 200. The specific structure of the charging head 300 is not limited in this embodiment, and those skilled in the art can select the structure according to actual needs.

An "electronic device" in this application may include, but is not limited to, a device configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communication terminal). Such as smart phones, tablets, laptops, wearable devices, and the like.

The description of the data line 200 of the present embodiment may refer to the detailed description of the data line embodiments described below.

As shown in fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the data line of the present application, and the data line 200 may include a connector 110 and a cable 100.

As shown in fig. 3, fig. 3 is a schematic view of a structure of a joint of the data line shown in fig. 2. Specifically, the joint 110 may be provided at an end of the cable 100. The connector 110 may be used to plug in electronic devices. The header 110 may include a first signal pin 111 and a second signal pin 112.

Further, the connector 110 may further include a housing 1100, and a power pin 113, a ground pin 114, and a cc (configuration channel) pin 115 disposed inside the housing 1100. The first signal pin 111 and the second signal pin 112 may also be disposed inside the case 1100. The power pin 113, the ground pin 114, the CC pin 115, the first signal pin 111, and the second signal pin 112 are exposed through an opening or a surface of the housing 1100, so as to be in contact with corresponding pins of the electronic device, thereby realizing signal transmission.

The first signal pin 111 may be a signal input pin, and the second signal pin 112 may be a signal output pin. In some embodiments, the first signal pin 111 may be a signal output pin, and the second signal pin 112 may be a signal input pin, which is not limited in this embodiment and can be selected by a person skilled in the art according to actual requirements.

In some embodiments, there may be a plurality of the first signal pins 111 and a plurality of the second signal pins 112, and the specific number of the first signal pins 111 and the second signal pins 112 is related. The embodiment is not limited, and those skilled in the art can select the embodiment according to actual requirements.

In some embodiments, the connector 110 may not include the power pin 113, the ground pin 114, or the CC pin 115, or the number of the power pin 113, the ground pin 114, and the CC pin 115 may be multiple. The embodiment is not limited, and those skilled in the art can select the embodiment according to actual requirements.

The connector 110 may be a USB connector. For example, it may be any of USB Type-A, USB Type-B, USB Type-C, misro USB, or Lightning connector.

Alternatively, as shown in fig. 2, the number of the connectors 110 is at least two, and two of the connectors 110 are respectively connected to two ends of the same coaxial signal line 10.

Taking the number of the connectors 110 as two as an example, the two connectors 110 are respectively connected to two ends of the cable 100, wherein one connector 110 may be a Type-C connector, and the other connector 110 may be a USB Type-a connector. Of course, the present embodiment is not limited with respect to the specific type of the joint 110, and those skilled in the art can select the type according to actual requirements.

Taking the number of the connectors 110 as three as an example, one connector 110 may be connected to one end of the cable 100, and the other two connectors 110 may be connected to the other end of the cable 100. The other two connectors 110 may be of the same type or different types, so that data transmission or charging can be performed simultaneously for a plurality of electronic devices.

Taking the number of the connectors 110 as four as an example, one connector 110 may be connected to one end of the cable 100, and the other three connectors 110 may be connected to the other end of the cable 100. Of course, two connectors 110 may be connected to each end of the cable 100.

The present embodiment does not limit the specific type and number of the connectors 110 and the specific distribution of the connectors 110 at the two ends of the cable 100, and those skilled in the art can select the type and number according to actual requirements.

For the cable 100 of the present embodiment, reference may be made to the following detailed description of the cable embodiments.

As shown in fig. 4 and 5, fig. 4 is a schematic cross-sectional structure of the cable embodiment of the present application, and fig. 5 is a schematic cross-sectional structure of the cable embodiment of the present application. The cable 100 described in the present embodiment may include a coaxial signal line 10. The coaxial signal line 10 may include an inner conductor 101 and an outer conductor layer 103 surrounding the outer periphery of the inner conductor 101. The outer conductor layer 103 and the inner conductor 101 are disposed at intervals and are correspondingly connected to the first signal pin 111 and the second signal pin 112, respectively.

In this embodiment, the outer conductor layer 103 and the inner conductor 101 are disposed at an interval and respectively connected to the first signal pin 111 and the second signal pin 112, which may refer to: the outer conductor layer 103 and the inner conductor 101 are disposed at an interval, the outer conductor 101 is connected to the first signal pin 111, and the inner conductor 101 is connected to the second signal pin 112.

The inventor of the present application has found, through long-term research, that if a twisted pair is used as a signal line, at least two twisted pairs are required to complete signal transmission. Specifically, the two signal lines are respectively connected to different signal pins, such as a signal input pin of one connector 110 and a signal output pin of the other connector 110, and cooperate with each other to complete signal transmission.

The present embodiment uses a coaxial line as a signal line, and connects the first signal pin 111 and the second signal pin 112 of the connector 110 with the inner conductor 101 and the outer conductor layer 103 of the coaxial signal line 10, respectively, to further realize signal transmission. In this way, the outer conductor layer 103 is also used for signal transmission and cooperates with the inner conductor 101, so that signal transmission can be efficiently achieved. Therefore, on the premise that the signal transmission rate is constant, the number of signal lines in the data line 200 of the present embodiment is half of the number of signal lines in the data line in which the double signal lines are twisted in pairs, and thus the number of signal lines in the data line 200 can be reduced, thereby reducing the line diameter of the data line 200.

In addition, this application adopts the coaxial line as the signal line, can guarantee that the signal line has the advantage of low dielectric constant, and the reliability is high simultaneously.

Specifically, the outer conductor layer 103 and the inner conductor 101 are disposed at intervals, and each may have a signal connection port. The signal connection ports of the outer conductor layer 103 and the inner conductor 101 may be end portions of the two. As an example, the inner conductor 101 may have both ends thereof serving as signal connection ports, and of course, a connector may be connected to the end of the inner conductor 101 and may serve as the signal connection ports. The signal connection ports of the inner conductor 101 and the outer conductor layer 103 are respectively used for corresponding first signal pins 111 and second signal pins 112 of the connection joint 110 to realize the transmission of signals.

By arranging the outer conductor layer 103 and the inner conductor 101 to have signal connection ends respectively corresponding to the first signal pin 111 and the second signal pin 112 of the connector 110, the transmission of signals can be completed by using one coaxial signal line 10 as a signal line, and the situation that the signal transmission can be realized by at least more than two signal lines in the conventional technology is changed. Further, the number of signal lines in the data line 200 can be reduced, and the line diameter of the data line 200 can be reduced.

As shown in fig. 6, fig. 6 is a schematic cross-sectional view of the coaxial signal line of the cable shown in fig. 4. For example, the coaxial signal line may include an inner conductor 101, and a first insulating layer 102, an outer conductor layer 103, an inner shield layer 104, and a second insulating layer 105 sequentially disposed around an outer circumference of the inner conductor 101.

The inner conductor 101 may be formed by twisting a plurality of conductive core wires, and the diameter of the inner conductor 101 may be between 0.05mm and 0.5mm, for example, the diameter of the inner conductor may be 0.05mm, 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5 mm. In addition, the present embodiment does not limit the twisting manner, number, material, and the like of the conductive core wire in the inner conductor 101. For example, the twisting mode can be forward direction, reverse direction, single strand, multiple strand, etc., the number of the conductive core wires can be between 7 and 200, the material of the conductive core wires can be tin-plated copper, bare copper, alloy copper, etc., and those skilled in the art can select the twisting mode according to actual needs.

Wherein, outer conductor layer 103 can be copper wire netting layer or copper wire winding layer, and about outer conductor layer 103's specific structure and material, this embodiment does not make the restriction, and the skilled person in the art can select according to actual need.

The thickness of the first insulating layer 102 ranges from 0.1mm to 0.5mm, and the concentricity of the inner conductor 101 is greater than 90%. The concentricity of the first insulating layer 102 to the inner conductor 101 is greater than 90%, which is beneficial to reducing the dielectric constant of the first insulating layer 102 and reducing the external interference so as to adjust the characteristic impedance to be within the standard range.

The term "characteristic impedance" in this application refers to an alternating current signal (or a high frequency signal), and the characteristic impedance belongs to a concept in long-line transmission. During the transmission of a signal in a transmission line, an electric field is formed between the transmission line and a reference plane at a point where the signal arrives, and due to the existence of the electric field, a small instantaneous current is generated, and the small current exists at each point in the transmission line. Meanwhile, a certain voltage also exists in the signal, so that each point of the transmission line can be equivalent to a resistor in the signal transmission process, and the resistor is the characteristic impedance of the transmission line.

For example, the thickness of the first insulating layer 102 may be 0.1mm, 0.2mm, 0.3mm, 0.4mm, or 0.5 mm. The concentricity of the first insulating layer 102 to the inner conductor 101 may be 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, or 99%.

Further, the first insulating layer 102 may include a first sub-layer 1021 and a second sub-layer 1022 through a dual layer extrusion process. At least one of the first sub-layer 1021 and the second sub-layer 1022 is a foamed layer.

The dielectric material is foamed to reduce the dielectric constant of the first insulating layer 102. The attenuation of the coaxial signal line 10 is improved advantageously under the condition of the same line diameter. In particular, the threshold value of the loss tangent of the dielectric material can be increased by foaming, since the polarization loss increases with increasing frequency at high frequencies, and particularly when a polar dielectric is used for the capacitor, the polarization loss increases rapidly with increasing frequency.

In the present application, "attenuation" refers to the fact that the intensity (voltage) of a high-frequency electronic signal is reduced due to the resistance of a basic material during transmission, but the intensity of the electronic signal is reduced due to Impedance caused by high frequency, the attenuation of the basic resistance depends on the material of a conductor, so called dc attenuation, the attenuation of capacitance and inductance depends on the frequency, so called ac attenuation, and the attenuation is more serious as the frequency is higher. If the ATT value approaches 0, the signal loss is less. Conversely, the more negative (smaller) the ATT value, the more serious the signal loss.

The double-layer extrusion process can enable the concentricity of the first insulating layer 102 to the inner conductor 101 to be more than 95%, and is beneficial to avoiding the problem that the attenuation is large due to large dielectric constant under the condition of the same wire diameter when the coaxial signal wire 10 is extruded by a single layer of common insulating materials or the specification of the conductor needs to be increased under the condition of the same attenuation, so that the parameters of capacitance, inductance, TDR and the like of the coaxial signal wire 10 are more stable, and the reliability of data transmission is high.

Next, the structure of the first insulating layer 102 will be described by taking an example in which the first sublayer 1021 and the second sublayer 1022 sequentially surround the outer periphery of the inner conductor 101, but in some embodiments, the second sublayer 1022 may be closer to the inner conductor 101 than the first sublayer 1021.

In some embodiments, the first sub-layer 1021 and the second sub-layer 1022 may be both foamed layers, for example, one or more of foamed PE (Polyethylene), foamed PP (Polypropylene), and foamed TFLON (polytetrafluoroethylene).

In some embodiments, the first sub-layer 1021 is a foamed layer and the second sub-layer 1022 is a non-foamed layer, and for example, can be a skin layer. For example, the first insulating layer 102 may have a structure of foamed PE + PE, foamed PE + PP, foamed PE + TFLON, foamed PP + PE, foamed PP + PP, foamed PP + TFLON, foamed TFLON + PE, foamed TFLON + PP, foamed TFLON + TELON, and so on.

In some embodiments, the first sub-layer 1021 may be a non-foamed layer, for example, may be a skin layer, and the second sub-layer 1022 may be a foamed layer. For example, the first insulating layer 102 may include a three-layer structure, for example, the first insulating layer 102 may include a skin layer, a foam layer, and a skin layer sequentially disposed around the inner conductor 101, which are within the scope easily understood by those skilled in the art and will not be described herein.

The inner shielding layer 104 may be any one or more of aluminum foil mylar, copper foil mylar, or graphene material. Optionally, the thickness of the inner shield layer 104 may range from 0.05mm to 0.25mm, for example, the thickness of the inner shield layer 104 may be 0.05mm, 0.1mm, 0.105mm, 0.2mm, or 0.25 mm. In some embodiments, the coaxial signal line 10 may not include the inner shielding layer 104, which is not limited herein and can be selected by one skilled in the art according to actual needs.

The second insulating layer 105 is used as an outer coating material to surround the outer periphery of the inner shielding layer 104, and the material of the second insulating layer 105 may be any one or more of tpe (thermoplastic elastomer), pvc (polyvinyl chloride), silica gel, tpu (thermoplastic polyurethanes), and the like. Regarding the specific materials and structures of the inner shield layer 104 and the second insulating layer 105, the present embodiment is not limited thereto, and those skilled in the art can select the materials and structures according to actual requirements.

Further, the cable 100 may further include at least one of a power line 20, a ground line 30, and a cc (configuration channel) line 40, and is twisted together with the coaxial signal line 10.

As shown in fig. 4, the cable 100 described in this embodiment may include two power lines 20, two ground lines 30, one CC line 40, and one coaxial signal line 10, where the two power lines 20, the two ground lines 30, the one CC line 40, and the one coaxial signal line 10 are twisted together to form a core of the cable 100.

Further, the cable 100 in this embodiment may further include an outer shielding layer 50 and a third insulating layer 60 sequentially surrounding the outer circumference of the core.

Wherein, outer shielding layer 50 can be including surrounding in proper order in the first shielding layer 51 and the second shielding layer 52 of the periphery of sinle silk, and first shielding layer 51 can be for any one or several kinds in aluminium foil wheat, copper foil wheat or the graphite alkene material, and second shielding layer 52 can be copper wire netting layer or copper wire winding layer to make cable 100's circularity better. The thickness of the first shielding layer 51 may range from 0.05mm to 0.25mm, for example, the thickness of the first shielding layer 51 may be 0.05mm, 0.1mm, 0.105mm, 0.2mm, or 0.25 mm.

For example, in some embodiments, the outer shielding layer 50 may only include the first shielding layer 51, or may only include the second shielding layer 52, and the second shielding layer 52 may also be closer to the core of the cable 100 than the first shielding layer 51.

The third insulating layer 60 is used as an outer covering material to surround the outer periphery of the outer shielding layer 50, and the material of the third insulating layer 60 may be any one or more of tpe (thermoplastic elastomer), pvc (polyvinyl chloride), silica gel, tpu (thermoplastic polyurethanes), and the like.

The cable 100 in this embodiment can reduce the wire diameter when the relevant test standard is satisfied, and can reduce the wire diameter by 15% to 30% compared with the technical scheme that twisted pairs are used as signal wires. The wire diameter can be effectively controlled during design, and the cost can be reduced. The consumer can not feel fool and coarse when using the data line finished product with the length of more than 2 m.

As shown in fig. 5, the cable 100 described in this embodiment may further include a power line 20, three ground lines 30, a CC line 40, and six coaxial signal lines 10, where the power line 20, the three ground lines 30, the CC line 40, and the six coaxial signal lines 10 are twisted together to form a core of the cable 100.

For example, the inner conductor 101 and the outer conductor layer 103 of each coaxial signal line 10 correspond to the first signal pin 111 and the second signal pin 112 of the connection joint 110, respectively, so that the inner conductor 101 and the outer conductor layer 103 of each coaxial signal line 10 are respectively responsible for inputting and outputting signals. That is, each coaxial signal line 10 may be used to transmit one type of signal.

The present embodiment is different from the previous embodiment in that six coaxial signal lines 10 are included, and the data transmission rate is high. Further features of the cable 100 in this embodiment may be the same as or similar to those of the previous embodiment, and are within the scope of easy understanding of those skilled in the art, and are not described herein again.

The cable 100 in this embodiment can reduce the wire diameter under the condition that the relevant test standards are satisfied, and can reduce the wire diameter by 5% -10% compared with the technical scheme that twisted pairs are adopted as signal wires in the prior art. The wire diameter can be effectively controlled during design, and the cost can be reduced.

The number of power lines 20, ground lines 30, CC lines 40, and coaxial signal lines 10 in the cable 100 is not limited in this embodiment, and those skilled in the art can select them according to the data transmission requirement. For example, in some embodiments, the number of coaxial signal lines 10 may be two, three, four, five, or even more. The cable 100 may not include the CC wire 40, and is within the scope of a person skilled in the art to easily understand it, and will not be described here.

The terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any indication of the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless explicitly specifically limited otherwise. All directional indications (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement, and the like in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is changed accordingly. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

The above description is only a part of the embodiments of the present application, and not intended to limit the scope of the present application, and all equivalent devices or equivalent processes performed by the content of the present application and the attached drawings, or directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims (10)

1. A data line, comprising

A connector comprising a first signal pin and a second signal pin;

the cable, with articulate, the cable includes coaxial signal line, coaxial signal line include the inner conductor and surround in the outer conductor layer of inner conductor periphery, the outer conductor layer with the inner conductor interval sets up, corresponds respectively and connects first signal pin with second signal pin, and then realizes the transmission of signal.

2. The data line of claim 1, wherein the coaxial signal line further comprises a first insulating layer disposed between the inner conductor and the outer conductor layer, the first insulating layer having a concentricity with the inner conductor of greater than 90%.

3. The data line of claim 2, wherein the first insulating layer comprises a first sub-layer and a second sub-layer formed by a two-layer extrusion process, at least one of the first sub-layer and the second sub-layer being a foamed layer.

4. The data line of claim 3, wherein the first sublayer and the second sublayer are both foamed layers.

5. The data line of claim 3, wherein the first sub-layer is a foamed layer and the second sub-layer is a skin layer.

6. The data line of claim 1, wherein the coaxial signal line further comprises an inner shield layer and a second insulating layer sequentially surrounding the outer periphery of the outer conductor layer.

7. The data line of claim 1, wherein the number of the connectors is at least two, and two of the connectors are respectively connected to two ends of the same coaxial signal line.

8. The data line of claim 1, wherein the cable includes at least one of a power line, a ground line, and a cc (configuration channel) line, and is twisted together with the coaxial signal line.

9. A cable is characterized by comprising a coaxial signal line, wherein the coaxial signal line comprises an inner conductor and an outer conductor layer surrounding the periphery of the inner conductor, the outer conductor layer and the inner conductor are arranged at intervals and are provided with signal connection ports; the signal connection ports of the inner conductor and the outer conductor layer are respectively used for corresponding to a first signal pin and a second signal pin of a connector, so that signal transmission is realized.

10. A charging assembly comprising a charging head and a data line according to any of claims 1 to 8, the charging head being connected to the data line.

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