CN107230531A - A kind of signal cable and electrical connection arrangement - Google Patents
A kind of signal cable and electrical connection arrangement Download PDFInfo
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- CN107230531A CN107230531A CN201610180409.5A CN201610180409A CN107230531A CN 107230531 A CN107230531 A CN 107230531A CN 201610180409 A CN201610180409 A CN 201610180409A CN 107230531 A CN107230531 A CN 107230531A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
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Abstract
The present invention provides a kind of signal cable and electrical connection arrangement, and signal cable includes：At least two first signal core lines and at least one low frequency signal cored wire of insulated hull, outer surface provided with insulating barrier and in insulated hull；First signal core line includes first kind signal core line and/or Equations of The Second Kind signal core line, and first kind signal core line includes high-frequency signal cored wire, and Equations of The Second Kind signal core line includes similar intermediate-freuqncy signal cored wire (sense of current identical signal core line)：Low frequency signal cored wire is provided with electromagenetic wave radiation region between at least two first signal core lines.Electrical connection arrangement includes signal cable and connected first connector or including the first connector and the second connector.Electromagnetic interference in electromagenetic wave radiation region between first signal core line between maskable many first signal core lines, saves the consumption of individually shielded line, the miniaturization of electrical equipment, promotion signal cable effective rate of utilization has can be achieved.
Description
Technical Field
The present invention relates to cables, and more particularly, to a signal cable and an electrical connection device.
Background
In modern society, electrical devices such as electromechanical devices, measurement and control devices (e.g. wireless communication base stations, medical devices) and the like are increasing, functions of the electrical devices are also increasing, interfaces on the electrical devices are also increasing, the electrical devices at present are generally provided with a plurality of serial ports, a plurality of network ports and a plurality of USB ports, and the size of the interfaces is large, such as the serial ports in fig. 1a and 1b, the serial ports are generally 31.19cm long and 12.93cm wide, the network ports and the network ports in fig. 2a and 2b are generally 15.9cm long and 13.55cm wide, the USB ports in fig. 3a and 3b are generally 7.70cm long and 4.06cm wide, and the GPS module interfaces in fig. 4a and 4b are generally 95cm in outer diameter, and in consideration of electrical interference problems, certain spatial isolation must be performed between the interfaces, so that the surface area of the entire electrical devices is increased, and further the volume of the electrical devices is increased, and the cable is more, and the wiring is complicated.
Although there is a composite connector applicable to miniaturized electrical equipment, most pins in the composite connector are occupied by shielding wires due to the fact that a plurality of shielding wires are needed in the existing cable, so that the effective utilization rate of the composite connector is not high, namely, the number of effective signal wires is small, and the types and the number of signals capable of being transmitted are correspondingly small.
Therefore, it is desirable to provide a cable and an electrical connection device that can achieve miniaturization of electrical equipment and can improve the effective utilization rate of signal cables.
Disclosure of Invention
The invention provides a signal cable and an electrical connection device, which realize miniaturization of electrical equipment and improve the effective utilization rate of the signal cable due to the fact that a low-frequency signal wire is used for shielding electromagnetic interference between a high-frequency signal core wire and a part of intermediate-frequency signal core wires.
In a first aspect, the present invention provides a signal cable comprising: the cable comprises an insulating sheath, at least two first signal core wires and at least one low-frequency signal core wire;
the first signal core wire and the low-frequency signal core wire are both core wires with insulating layers on the outer surfaces, and the first signal core wire and the low-frequency signal core wire are both positioned in the insulating layers;
the first signal core wire comprises a first type signal core wire and/or a second type signal core wire, the first type signal core wire comprises a high-frequency signal core wire, the second type signal core wire comprises a similar intermediate-frequency signal core wire, and the similar intermediate-frequency signal core wire is a signal core wire with the same current passing direction;
the low-frequency signal core wire is arranged between the at least two first signal core wires and arranged in an electromagnetic wave radiation area between the at least two first signal core wires, and is used for shielding electromagnetic interference between the first signal core wires.
Preferably, the method further comprises the following steps: a common power line and a common ground line for providing a reference voltage for the first signal core and the low frequency signal core.
Preferably, the number of the first signal core wires in the signal cable is an even number which is greater than or equal to four, and the number of the low-frequency signal core wires in the signal cable is greater than or equal to two;
the signal cable comprises at least two groups of first signal core wires, each group of first signal core wires comprises an even number of first signal core wires, each group of first signal core wires is arranged in a virtual central symmetry mode, each group of first signal core wires corresponds to one low-frequency signal core wire, and the low-frequency signal core wires are arranged in the virtual central symmetry mode.
Preferably, each group of first signal core wires are arranged into a circle, the circle and the insulation sheath are concentric circles, and the virtual center is the center of the insulation sheath.
Preferably, the first signal cores of each group are uniformly distributed on a circle.
Preferably, any one low-frequency signal core wire and two first signal core wires adjacent to the low-frequency signal core wire form a triple, and each triple is arranged in one built-in insulating sheath; the low-frequency signal core wire is arranged in an electromagnetic wave radiation area between the low-frequency signal core wire and the two first signal core wires and used for shielding electromagnetic interference between the two first signal core wires;
or,
any one low-frequency signal core wire and two first signal core wires adjacent to the low-frequency signal core wire form a triple, and each triple is arranged in one built-in insulating sheath; the low-frequency signal core wire is arranged in an electromagnetic wave radiation area between the low-frequency signal core wire and the two first signal core wires and used for shielding electromagnetic interference between the two first signal core wires;
when the low-frequency signal core wires in the signal cable except for the low-frequency signal core wires in the triad comprise two adjacent low-frequency signal core wires, any two adjacent low-frequency signal core wires form a doublet, and any doublet is arranged in an internal insulating sheath.
In a second aspect, the present invention also provides an electrical connection device comprising the signal cable and a first connector;
the first connecting head comprises pins corresponding to a first signal core wire and a low-frequency signal core wire in the signal cable respectively, and the first signal core wire and the low-frequency signal core wire are connected with the pins in the first connecting head correspondingly.
Preferably, the first connection terminal includes pins corresponding to a common power line and a common ground line in the signal cable, and the common power line and the common ground line are respectively connected to the pins in the first connection terminal.
In a second aspect, the present invention further provides an electrical connection device, including the signal cable, the first connector and a plurality of second connectors;
the first connector comprises pins corresponding to a first signal core wire and a low-frequency signal core wire in the signal cable, the first signal core wire and the low-frequency signal core wire in the signal cable are respectively and correspondingly connected with the pins in the first connector, and a set of signal core wires in the signal cable are respectively connected with a corresponding second connector;
the set of signal core wires are a signal transmitting wire and a signal receiving wire based on the same signal.
Preferably, a common power line and a common ground line in the signal cable are connected with the corresponding second connectors.
According to the technical scheme, the low-frequency signal wire is arranged in the electromagnetic wave radiation area between at least two first signal core wires, so that electromagnetic interference between the first signal core wires can be shielded, the low-frequency signal core wires are used for shielding the electromagnetic interference between the high-frequency signal core wires or the medium-frequency signal core wires of the same type (the medium-frequency signal core wires of the same type are signal core wires with the same current passing direction), and the low-frequency signal core wires are used for transmitting low-frequency signals instead of single shielding wires for realizing the electromagnetic interference between the high-frequency signal core wires and part of medium-frequency signal core wires, so that the cable can comprise more effective core wires (the effective core wires refer to the signal wires), thereby realizing the miniaturization of electrical equipment and improving the effective utilization rate of the signal cable.
Drawings
FIG. 1a is a front view of a conventional serial port;
FIG. 1b is a schematic structural diagram of a conventional serial port;
FIG. 2a is a front view of a conventional portal;
FIG. 2b is a schematic diagram of a conventional network port;
FIG. 3a is a front view of a conventional USB port;
FIG. 3b is a schematic diagram of a conventional USB port;
FIG. 4a is a front view of a conventional GPS module interface;
FIG. 4b is a schematic structural diagram of an interface of a conventional GPS module;
FIG. 5 is a cross-sectional view of a signal cable according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an electrical connection device according to an embodiment of the present invention;
FIG. 7a is a schematic structural view of a conventional composite joint;
FIG. 7b is a front view of a prior art composite fitting;
fig. 8 is a schematic structural diagram of another electrical connection device according to an embodiment of the present invention.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Fig. 5 is a schematic cross-sectional view of a signal cable according to an embodiment of the present invention.
As shown in fig. 5, a signal cable of the present embodiment includes: the cable comprises an insulating sheath 5, at least two first signal core wires and at least one low-frequency signal core wire;
the first signal core wire and the low-frequency signal core wire are both core wires with insulating layers on the outer surfaces, and the first signal core wire and the low-frequency signal core wire are both positioned in the insulating sheath 5;
the first signal core wire comprises a first type signal core wire and/or a second type signal core wire, the first type signal core wire comprises a high-frequency signal core wire, the second type signal core wire comprises a similar intermediate-frequency signal core wire, and the similar intermediate-frequency signal core wire is a signal core wire with the same current passing direction;
the low-frequency signal core wire is arranged between the at least two first signal core wires and arranged in an electromagnetic wave radiation area between the at least two first signal core wires, and is used for shielding electromagnetic interference between the first signal core wires.
In practical applications, one end of the signal cable of this embodiment is connected to a first connector (as shown in fig. 6, the first connector is a composite connector), the first connector 6 is connected to a corresponding interface of the electrical device, the complete set of signal cores in the signal cable are respectively connected to a corresponding second connector, and each second connector is respectively connected to a corresponding interface of the first device;
the first device is connected with the electrical device for signal transmission, and the corresponding interfaces are interfaces such as a network port and a serial port.
Complete set of signal heart yearns in the signal cable connect a corresponding second connector respectively, can be: the network cable for sending and receiving the network signal in the signal cable is connected with the network port of the second connector, and the data cable for sending and receiving the serial port data in the signal cable is connected with the serial port of the second connector. The second connector can be seen in fig. 8.
In this embodiment, the low-frequency signal line is disposed in the electromagnetic wave radiation area between the at least two first signal core lines, so that electromagnetic interference between the first signal core lines can be shielded, the multiple high-frequency or similar intermediate-frequency signal core lines (the similar intermediate-frequency signal core lines are signal core lines having the same current direction) are used, and the low-frequency signal core lines are used to shield electromagnetic interference between the high-frequency or similar intermediate-frequency signal core lines, so that the low-frequency signal core lines capable of transmitting low-frequency signals are used instead of the single shielding line to achieve electromagnetic interference between the high-frequency signal core lines and a part of the intermediate-frequency signal core lines, so that the cable can include more effective core lines (the effective core lines refer to the signal lines), thereby achieving miniaturization of the electrical equipment, and improving the effective utilization rate of the.
As can be seen from the above, the signal cable may include a plurality of signal cores, some of the signal cores need to be equipped with a power supply (for example, USB needs a power line and a ground line), the voltage required between the plurality of signal cores that need to be equipped with a power supply is different, the voltage with different magnitudes may cause a voltage difference between the signal cores, thereby affecting the stability and safety of different signal transmissions in the signal cable, and therefore, the signal cores of different types need to have the same reference voltage therebetween, thereby ensuring the normal operation of each signal core, as shown in fig. 5, the signal cable further includes: a common power line and a common ground line for providing a reference voltage for the first signal core and the low frequency signal core.
The common power supply and the common ground wire are adopted in the embodiment, so that unstable or unsafe signal transmission caused by differential pressure of different types of signal core wires can be prevented.
In order to reduce the amount of low-frequency signal lines and further optimize the above functions (to achieve miniaturization of electrical equipment and to improve the effective utilization rate of signal cables) on the premise of achieving the shielding effect, as many first signal cores as possible should adopt as few low-frequency signal cores as possible, and therefore, the preferred embodiment that can be adopted is: the number of first signal core wires in the signal cable is an even number which is more than or equal to four, and the number of low-frequency signal core wires in the signal cable is more than or equal to two;
the signal cable comprises at least two groups of first signal core wires, each group of first signal core wires comprises an even number of first signal core wires, each group of first signal core wires is arranged in a virtual central symmetry mode, each group of first signal core wires corresponds to one low-frequency signal core wire, and the low-frequency signal core wires are arranged in the virtual central symmetry mode.
It is understood that the low-frequency signal core is a low-frequency signal core disposed in the electromagnetic wave radiation region between the first signal cores of each group to shield electromagnetic interference between the first signal cores of each group.
It should be noted that each group of first signal core wires corresponds to one low-frequency signal core wire, and each group of first signal core wires may include two, four, six or eight first signal core wires, and it can be understood that the low-frequency signal core wires corresponding to each group of first signal core wires need to be arranged in the electromagnetic wave radiation area between all the first signal core wires of the group of first signal core wires, so as to shield the electromagnetic interference between all the first signal core wires, obviously, in this arrangement mode, because the number of the first signal core wires corresponding to each low-frequency signal core wire is greater, the usage amount of the low-frequency signal wires is reduced on the premise of achieving the shielding effect, and the above functions are further optimized (the effective utilization rate of the signal cable is improved on the basis of realizing the miniaturization of the electrical equipment). And every first signal heart yearn of group sets up with virtual central symmetry, and the low frequency signal heart yearn that corresponds with every first signal heart yearn of group (because first signal heart yearn is at least two sets of, so the low frequency signal heart yearn also is many) also with virtual central symmetry sets up, considers setting based on characteristics such as the direction of the magnetic field line of first signal heart yearn (wire), and this kind of mode of arranging is more convenient for set up a low frequency signal heart yearn in the common electromagnetic wave radiation region between many first signal heart yearns to reduce the quantity of low frequency signal heart yearn.
In practical applications, as shown in fig. 5, each group of first signal cores may include four first signal wire cores, but may also include six, eight, etc., and this is not limited herein.
Since the signal cable is circular in cross section and the magnetic field lines of the conducting wires are helical, it can be understood that each set of first signal cores may be arranged in a circle, the circle and the insulating sheath 5 are concentric circles, and the virtual center is the center of the insulating sheath 5. This facilitates the arrangement of the first signal cores, and facilitates the setting of one low-frequency signal core in the common electromagnetic wave radiation region between the plurality of first signal cores, thereby reducing the amount of use of the low-frequency signal cores.
In order to facilitate the arrangement of a low-frequency signal core in the electromagnetic wave radiation region between the plurality of first signal cores, it is preferable that each group of first signal cores is uniformly distributed on a circle, so that the magnetic field distribution of each first signal core is uniform, and it is more convenient to arrange a low-frequency signal core in the common electromagnetic wave radiation region between the plurality of first signal cores.
In order to further realize the insulation between the signal core wires, preferably, any one low-frequency signal core wire and two first signal core wires adjacent to the low-frequency signal core wire form a triple, and each triple is arranged in one built-in insulating sheath 5; the low-frequency signal core wire is arranged in an electromagnetic wave radiation area between the two first signal core wires and is used for shielding electromagnetic interference between the two first signal core wires.
Or,
any one low-frequency signal core wire and two first signal core wires adjacent to the low-frequency signal core wire form a triple, and each triple is arranged in one built-in insulating sheath 5; the low-frequency signal core wire is arranged in an electromagnetic wave radiation area between the low-frequency signal core wire and the two first signal core wires and used for shielding electromagnetic interference between the two first signal core wires;
when the low-frequency signal core wires in the signal cable except for the low-frequency signal core wires in the triad comprise two adjacent low-frequency signal core wires, any two adjacent low-frequency signal core wires form a doublet, and any doublet is arranged in the built-in insulating sheath 5.
The present invention is specifically described below with reference to the signal cable shown in fig. 5.
One specific signal cable shown in fig. 5 includes an insulating sheath 5, four triplets, namely a first triplet S1, a second triplet S2, a third triplet S3 and a fourth triplet S4;
wherein,
the first triplet S1 includes: the first signal core wire X1, the second signal core wire X2 and a ninth signal core wire X9 of a low-frequency signal wire adjacent to the first signal core wire X2, wherein the ninth signal core wire X9 is used for shielding electromagnetic interference in the circumferential direction of the first signal core wire X1 and the second signal core wire X2;
the second triplet S2 includes: the third signal core wire X3, the fourth signal core wire X4 and a tenth signal core wire X10 of a low-frequency signal line adjacent to them, the tenth signal core wire X10 is used for shielding electromagnetic interference in the circumferential direction of the third signal core wire X3 and the fourth signal core wire X4;
the third triplet S3 includes: the fifth signal core X5, the sixth signal core X6 and an eleventh signal core X11 of low frequency signal line adjacent thereto, the eleventh signal core X11 being adapted to shield the fifth signal core X5 and the sixth signal core X6 from electromagnetic interference;
the fourth triplet S4 includes: the seventh signal core X7, the eighth signal core X8 and a twelfth signal core X12 of low frequency signal line adjacent thereto, the twelfth signal core X12 being adapted to shield the seventh signal core X7 and the eighth signal core X8 from electromagnetic interference;
doublet E1 includes eighteenth and nineteenth signal cores X18 and X19, eighteenth and nineteenth signal cores X18 and X19 each being a low frequency signal core, wherein eighteenth signal core X18 is configured to correspond to electromagnetic interference in a lateral direction between first and third signal cores X1 and X5, and electromagnetic interference in a lateral direction of third and seventh signal cores X3 and X7, where the lateral direction is for the embodiment of FIG. 5;
wherein the first signal core wire X1, the third signal core wire X3, the fifth signal core wire X5 and the seventh signal core wire X7 form a circle, the second signal core wire X2, the fourth signal core wire X4, the sixth signal core wire X6 and the eighth signal core wire X8 form another circle, the two circles and the insulation sheath 5 are concentric circles, and the eighteenth signal core wire X18 and the nineteenth signal core wire X19 are arranged in circular symmetry with the insulation sheath 5;
the insulating sheath 5 also comprises: the thirteenth signal core wire X13, the fourteenth signal core wire X14, the fifteenth signal core wire X15, the sixteenth signal core wire X16 and the seventeenth signal core wire X17, the fifteenth signal core wire X15 is a common power line, the seventeenth signal core wire X17 is a common ground line, the thirteenth signal core wire X13, the fourteenth signal core wire X14 and the sixteenth signal core wire X16 may be idle lines or may be arranged according to the arrangement of other signal core wires, for example, the signal core wires on two adjacent sides of the sixteenth signal core wire X16 are both high-frequency signal core wires, and the sixteenth signal core wire X16 needs to be a low-frequency signal core wire.
It can be seen that eight first signal heart yearns have used eleven low frequency signal heart yearns to do the shielding, can transmit 8 signals simultaneously, so not only reduce electrical equipment's volume, and promoted the effective utilization ratio of signal cable.
Fig. 6 is a schematic structural diagram of an electrical connection device according to an embodiment of the present invention.
An electrical connection device as shown in fig. 6, comprising said signal cable and a first connector 6;
the first connector 6 comprises pins corresponding to a first signal core wire and a low-frequency signal core wire in the signal cable XL, and the first signal core wire and the low-frequency signal core wire are connected with the pins in the first connector 6 correspondingly.
Since the signal cable XL in the electrical connection device corresponds to the above-described signal cable, the signal cable is not described in detail here.
As a preferred embodiment, the first connector 6 includes pins corresponding to a common power line and a common ground line in the signal cable, and the common power line and the common ground line are respectively connected to the pins in the first connector 6.
As can be seen from the above description, the common power supply and the common ground line can prevent unstable or unsafe signal transmission due to voltage differences in the different kinds of signal cores.
The first connector 6 is intended to be plugged into an electrical device, it being understood that an electrical socket on the electrical device should mate with the first connector 6.
It is worth mentioning that the first connection joint 6 may employ an existing composite joint 7 as shown in fig. 7a and 7 b.
The first connector 6 may also be a first connector that has a one-to-one correspondence with each signal core wire in the signal cable in the embodiment of the present invention to achieve one-to-one direct connection between each signal core wire in the signal cable and each connector in the first connector, for example, the first connector is a connector with a circular cross section and the same diameter as the cable, and each connector with the same position as each signal core wire in the signal cable is provided on the first connector, and the interface at the same position as each signal core wire in the signal cable of the present invention on the first connector is matched with the function of the signal core wire, for example, the signal core wire is a serial port wire, the interface of the first connector corresponding to the serial port wire position is a serial port, and the rest of the interfaces are not listed one by one. The first connector can solve the problem that when the arrangement of the signal cable is different from the interface arrangement of the first connector, the end heads of the signal core wires need to be rearranged to adapt to the interfaces of the first connector, and the signal core wires are prevented from being bent to shorten the service life of the core wires. Fig. 8 is a schematic structural diagram of another electrical connection device according to an embodiment of the present invention.
An electrical connection device as shown in fig. 8, comprising said signal cable, a first connector 6 and a plurality of second connectors;
the first connector 6 comprises pins corresponding to a first signal core wire and a low-frequency signal core wire in the signal cable XL, the first signal core wire and the low-frequency signal core wire in the signal cable are respectively and correspondingly connected with the pins in the first connector 6, and a set of signal core wires in the signal cable is connected with a corresponding second connector; for example, a network cable for transmitting and receiving network signals is connected to a network port, and a data cable for transmitting and receiving serial port data is connected to a serial port;
the set of signal core wires are a signal transmitting wire and a signal receiving wire based on the same signal.
As shown in FIG. 8, a first group of signal cores in a signal cable XL are connected with a first video splitter junction J1, a second group of signal cores are connected with a second video splitter junction J2, a third group of signal cores are connected with a third video splitter junction J3, a fourth group of signal cores are connected with a crystal junction J4, a fifth group of signal cores are connected with a first serial interface J5, and a sixth group of signal cores are connected with a second serial interface J6, wherein each group of signal cores refers to a group of signal cores. Since the signal cable XL in the electrical connection device corresponds to the above-described signal cable, the signal cable is not described in detail here.
The first connector 6 is intended to be plugged into an electrical device, it being understood that an electrical socket on the electrical device should mate with the first connector 6.
It should be noted that, the first connector 6 may adopt the existing composite connector 7 as shown in fig. 7a and fig. 7b, or may adopt a first connector having a one-to-one correspondence with each signal core wire in the signal cable in the embodiment of the present invention to realize one-to-one direct insertion connection between each signal core wire in the present signal cable and each connector port in the first connector, for example, the first connector is also a connector with a circular cross section and the same diameter as the cable, and the first connector is provided with each interface at the same position as each signal core wire in the signal cable of the present invention, and the interface at the same position as each signal core wire in the signal cable of the present invention on the first connector matches with the role of the signal core wire, for example, the signal core wire is a serial port wire, the interface of the first connector corresponding to the serial port wire position is a serial port, and the rest of the interfaces are not listed one by one.
The complete set of signal core wires in the signal cable are respectively connected with a corresponding second connector, and each second connector is respectively connected with a corresponding interface on first equipment (the first equipment is equipment which is connected with the electrical equipment and performs signal transmission);
complete set of signal heart yearns in the signal cable connect a corresponding second connector respectively, can be: the network cable for sending and receiving the network signal in the signal cable is connected with the network port of the second connector, and the data cable for sending and receiving the serial port data in the signal cable is connected with the serial port of the second connector.
Each second connector is connected with the corresponding interface on the first equipment respectively, and can be: the network port of the second connector is connected to the network port of the first device, and the serial port of the second connector is connected with the serial port of the first device.
In a preferred embodiment, the common power line and the common ground line in the signal cable are connected to the corresponding second connectors. As can be seen from the above description, the common power supply and the common ground line can prevent unstable or unsafe signal transmission due to voltage differences in the different kinds of signal cores.
Those of ordinary skill in the art will understand that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions and scope of the present invention as defined in the appended claims.
Claims (10)
1. A signal cable, comprising: the cable comprises an insulating sheath, at least two first signal core wires and at least one low-frequency signal core wire;
the first signal core wire and the low-frequency signal core wire are both core wires with insulating layers on the outer surfaces, and the first signal core wire and the low-frequency signal core wire are both positioned in the insulating layers;
the first signal core wire comprises a first type signal core wire and/or a second type signal core wire, the first type signal core wire comprises a high-frequency signal core wire, the second type signal core wire comprises a similar intermediate-frequency signal core wire, and the similar intermediate-frequency signal core wire is a signal core wire with the same current passing direction;
the low-frequency signal core wire is arranged between the at least two first signal core wires and arranged in an electromagnetic wave radiation area between the at least two first signal core wires, and is used for shielding electromagnetic interference between the first signal core wires.
2. The signal cable of claim 1, further comprising: a common power line and a common ground line for providing a reference voltage for the first signal core and the low frequency signal core.
3. The signal cable of claim 1, wherein the number of first signal cores in the signal cable is an even number greater than or equal to four, and the number of low-frequency signal cores in the signal cable is greater than or equal to two;
the signal cable comprises at least two groups of first signal core wires, each group of first signal core wires comprises an even number of first signal core wires, each group of first signal core wires is arranged in a virtual central symmetry mode, each group of first signal core wires corresponds to one low-frequency signal core wire, and the low-frequency signal core wires are arranged in the virtual central symmetry mode.
4. The signal cable of claim 3, wherein each group of the first signal cores is arranged in a circle, the circle is concentric with the insulating sheath, and the virtual center is a center of the insulating sheath.
5. The signal cable of claim 4, wherein each set of first signal cores is evenly distributed over a circle.
6. The signal cable of claim 1, wherein any one low frequency signal core wire and two first signal core wires adjacent to the low frequency signal core wire form a triad, each triad being disposed within an inner insulation sheath; the low-frequency signal core wire is arranged in an electromagnetic wave radiation area between the low-frequency signal core wire and the two first signal core wires and used for shielding electromagnetic interference between the two first signal core wires;
or,
any one low-frequency signal core wire and two first signal core wires adjacent to the low-frequency signal core wire form a triple, and each triple is arranged in one built-in insulating sheath; the low-frequency signal core wire is arranged in an electromagnetic wave radiation area between the low-frequency signal core wire and the two first signal core wires and used for shielding electromagnetic interference between the two first signal core wires;
when the low-frequency signal core wires in the signal cable except for the low-frequency signal core wires in the triad comprise two adjacent low-frequency signal core wires, any two adjacent low-frequency signal core wires form a doublet, and any doublet is arranged in an internal insulating sheath.
7. An electrical connection device comprising the signal cable and the first connector of any one of claims 1-6;
the first connecting head comprises pins corresponding to a first signal core wire and a low-frequency signal core wire in the signal cable respectively, and the first signal core wire and the low-frequency signal core wire are connected with the pins in the first connecting head correspondingly.
8. The electrical connection device according to claim 7, wherein the first connection terminal includes pins corresponding to a common power supply line and a common ground line in the signal cable, and the common power supply line and the common ground line are respectively connected to the pins in the first connection terminal.
9. An electrical connection device comprising the signal cable of any one of claims 1-6, a first connector and a plurality of second connectors;
the first connector comprises pins corresponding to a first signal core wire and a low-frequency signal core wire in the signal cable, the first signal core wire and the low-frequency signal core wire in the signal cable are respectively and correspondingly connected with the pins in the first connector, and a set of signal core wires in the signal cable are respectively connected with a corresponding second connector;
the set of signal core wires are a signal transmitting wire and a signal receiving wire based on the same signal.
10. The electrical connection device of claim 9, wherein a common power line and a common ground line in the signal cable are connected to the corresponding second connectors.
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| CN201610180409.5A CN107230531A (en) | 2016-03-25 | 2016-03-25 | A kind of signal cable and electrical connection arrangement |
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| CN201610180409.5A CN107230531A (en) | 2016-03-25 | 2016-03-25 | A kind of signal cable and electrical connection arrangement |
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