CN216849378U - Hybrid transmission cable, charging circuit, charging gun head and testing tool - Google Patents
Hybrid transmission cable, charging circuit, charging gun head and testing tool Download PDFInfo
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- CN216849378U CN216849378U CN202220131501.3U CN202220131501U CN216849378U CN 216849378 U CN216849378 U CN 216849378U CN 202220131501 U CN202220131501 U CN 202220131501U CN 216849378 U CN216849378 U CN 216849378U
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Abstract
The application provides a hybrid transmission cable, charging circuit, rifle head and test fixture charge relates to transmission cable technical field. The hybrid transmission cable includes: the cable comprises an insulating layer, a metal film shielding layer, at least one communication cable, at least one power cable and a connecting terminal; the metal film shielding layer is wrapped on the outer layers of the at least one communication cable and the at least one power cable, and the edge layer is wrapped on the outer layer of the metal film shielding layer; one end of at least one communication cable and one end of at least one power cable are connected with connecting terminal, and at least one communication cable adopts helical structure near the preset length scope of connecting terminal. The application can reduce the cable disconnection fault, and improve the reliability and the service life of the cable.
Description
Technical Field
The utility model relates to a transmission cable technical field particularly, relates to a hybrid transmission cable, charging circuit, rifle head and test fixture charge.
Background
The traditional multi-specification flexible copper core wire cable mixed loading scheme is that copper core multi-strand wires with various different models and different wire diameters are subjected to insulation treatment and then extruded together to be subjected to outer rubber packaging, so that the effects of insulation and flexibility are achieved, and a certain tensile and anti-bending function is achieved.
Because the radiation interference and the tensile strength that long distance overhead line and ground shop line arouse are mainly considered in present cable design, bring the interference consideration less to the operating mode and the conduction of cable free droop and long-term high frequency time bending, especially take the cable of aviation plug terminal output, very easily the broken string under the operating mode of high frequency time bending, and then lead to cable open circuit and other serious outage accidents.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the not enough among the above-mentioned prior art, provide a mixed transmission cable, charging circuit, rifle head and test fixture charge to improve the anti ability of bending of cable.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, an embodiment of the present application provides a hybrid transmission cable, including: the cable comprises an insulating layer, a metal film shielding layer, at least one communication cable, at least one power cable and a connecting terminal;
the metal film shielding layer wraps the outer layers of the at least one communication cable and the at least one power cable, and the insulating layer wraps the outer layer of the metal film shielding layer;
at least one communication cable with the one end of at least one power cable with connecting terminal connects, at least one communication cable is close to connecting terminal's length range in predetermineeing adopts helical structure.
Optionally, a first structural strength reinforcement is wrapped between the at least one communication cable in the metal film shielding layer.
Optionally, a second structural strength reinforcement is wrapped between the at least one power cable in the metal film shielding layer.
Optionally, a separation strip is disposed between the at least one communication cable and the at least one power cable in the metal film shielding layer.
Optionally, the separation belt is a metal film.
Optionally, the insulating layer is a flame retardant rubber insulating layer.
Optionally, the spiral structure is a structure in which the diameter of a spiral circle is a preset diameter, the number of spiral turns is a preset number of spiral turns, the deviation between the preset diameter and 5mm is within a preset range, and the preset number of spiral turns is any one of 10-15.
In a second aspect, an embodiment of the present application further provides a low-voltage battery charging circuit, including: the hybrid transmission cable according to any one of the above embodiments, and a charging module, wherein the connection terminal on the hybrid transmission cable is connected to a charging port of the charging module.
In a third aspect, an embodiment of the present application further provides an ac/dc charging gun head, where any one of the hybrid transmission cables in the above embodiments is provided in the ac/dc charging gun head, and a connection terminal on the hybrid transmission cable is used to connect a device to be charged.
In a fourth aspect, an embodiment of the present application further provides a power module testing tool, where a testing port on the power module testing tool is connected to any one of the connection terminals of the hybrid transmission cable in the above embodiments.
The beneficial effect of this application is:
the application provides a mixed transmission cable, charging circuit, rifle head and test fixture charge, wherein, mixed transmission cable includes: the cable comprises an insulating layer, a metal film shielding layer, at least one communication cable, at least one power cable and a connecting terminal; the metal film shielding layer is wrapped on the outer layers of the at least one communication cable and the at least one power cable, and the edge layer is wrapped on the outer layer of the metal film shielding layer; one end of at least one communication cable and one end of at least one power cable are connected with connecting terminal, and at least one communication cable adopts helical structure near the preset length scope of connecting terminal. This application is through being spiral structure with communication cable's the length scope design of predetermineeing, can guarantee that mixed transmission cable makes communication cable can extend in certain extent when operations such as bending, plug, dragging, and to a great extent eliminates the mechanical gravitation that communication cable bore, has reduced communication cable's broken string trouble, has improved mixed transmission cable's reliability, increases mixed transmission cable's life.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a longitudinal sectional view of a hybrid transmission cable according to an embodiment of the present application;
fig. 2 is a cross-sectional view of a proximal terminal side of a hybrid transmission cable according to an embodiment of the present application;
fig. 3 is a schematic diagram illustrating a hybrid transmission cable according to an embodiment of the present application;
fig. 4 is an equivalent electrical schematic diagram of a hybrid transmission cable according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a low-voltage battery charging circuit according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an ac/dc charging gun head according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a power module testing tool according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it should be noted that if the terms "upper", "lower", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship which is usually arranged when the product of the application is used, the description is only for convenience of describing the application and simplifying the description, but the indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation and operation, and thus, cannot be understood as the limitation of the application.
Furthermore, the terms "first," "second," and the like in the description and in the claims, and in the drawings described above, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the features of the embodiments of the present application may be combined with each other without conflict.
Fig. 1 is a longitudinal sectional view of a hybrid transmission cable according to an embodiment of the present application, and fig. 2 is a transverse sectional view of a proximal terminal side of the hybrid transmission cable according to the embodiment of the present application, and as shown in fig. 1 and fig. 2, a hybrid transmission cable 10 includes: insulating layer 11, metal film shielding layer 12, at least one communication cable 13, at least one power cable 14 and connection terminal 15.
The metal film shielding layer 12 is wrapped on the outer layer of at least one communication cable 13 and at least one power cable 14, and the insulating layer 11 is wrapped on the outer layer of the metal film shielding layer 12.
One end of at least one communication cable 13 and one end of at least one power cable 14 are connected with a connecting terminal 15, and a spiral structure 16 is adopted within a preset length range of at least one communication cable 13 close to the connecting terminal 15.
Specifically, the communication cable 13 is used for transmitting communication signals, the power cable 14 is used for transmitting electrical signals, the communication cable 13 may also be referred to as a signal line, and the power cable 14 may also be referred to as a cable, and the communication cable 13 and the power cable 14 are wrapped together to form a hybrid transmission cable, so that signal transmission and electrical transmission can be performed simultaneously through a small wiring range.
The metal film shielding layer 12 wraps all the communication cables 13 and all the power cables 14 together, so that the communication cables 13 and the power cables 14 are prevented from being interfered by signals and interfered by electromagnetism due to the external environment, the insulating layer 11 wraps the metal film shielding layer 12, and the electric shock risk caused by electric leakage of the hybrid transmission cables is avoided.
For example, fig. 3 is a schematic diagram of a hybrid transmission cable according to an embodiment of the present disclosure, as shown in fig. 3, the connection terminal 15 includes a terminal 151 and a plug end 152, and one end of all the communication cables 13 and one end of the power cable 14, which are wrapped by the metal film shielding layer 12 and the insulating layer 11, are enclosed in the terminal 151 of the connection terminal 15, as shown in fig. 2, at least one communication cable 13 adopts a spiral structure 16 within a preset length range on a side close to the terminal 151 of the connection terminal 15, and the communication cable with the spiral structure can extend within a certain range like a spring, so that a mechanical attraction force applied to the communication cable with a straight-line structure is greatly eliminated, a disconnection fault of the communication cable is reduced, and reliability of the communication cable is improved. The helical structure 16 ensures that the hybrid transmission cable 10 can be extended within a certain range during bending, plugging, pulling, etc. operations.
As an example, as shown in fig. 1, the hybrid transmission cable 10 provided in the embodiment of the present application has three communication cables 13 and three power cables 14.
In an alternative embodiment, each communication cable 13 is an insulated communication cable and each power cable 14 is an insulated power cable.
Specifically, the outer layer of each communication cable 13 is wrapped by an insulating layer to prevent the communication cable from generating signal interference in the process of transmitting signals, and the outer layer of each power cable 14 is wrapped by an insulating layer to prevent the power cable from generating electromagnetic interference in the process of transmitting electricity.
The hybrid transmission cable provided by the embodiment of the application comprises an insulating layer, a metal film shielding layer, at least one communication cable, at least one power cable and a connecting terminal; the metal film shielding layer is wrapped on the outer layers of the at least one communication cable and the at least one power cable, and the edge layer is wrapped on the outer layer of the metal film shielding layer; one end of at least one communication cable and one end of at least one power cable are connected with connecting terminal, and at least one communication cable adopts helical structure near connecting terminal's the preset length within range. This application embodiment is through the length scope design of predetermineeing with the communication cable for helical structure, can guarantee that the hybrid transmission cable makes the communication cable can extend in certain extent when operations such as bending, plug, dragging, and to a great extent eliminates the mechanical gravitation that the communication cable bore, has reduced the broken string trouble of communication cable, has improved the reliability of hybrid transmission cable, increases the life of hybrid transmission cable.
On the basis of the above embodiments, the present embodiment further provides a hybrid transmission cable, as shown in fig. 1, a first structural strength reinforcement 17 is wrapped between at least one communication cable 13 in the metal film shielding layer 12.
Specifically, because the line diameter of communication cable 13 is thinner, for avoiding leading to communication cable 13 broken string because of the strength of pulling, can wrap up first structural strength reinforcement 17 between at least one communication cable 13, first structural strength reinforcement 17 can increase the intensity of at least one communication cable 13, avoids communication cable 13's broken string risk. For example, the first structural strength reinforcement 17 may be a cable with poor expansion and contraction ability, such as hemp, glass fiber, etc., to avoid excessive pulling of the communication cable 13.
According to the hybrid transmission cable provided by the embodiment of the application, the first structural strength reinforcing piece wraps the at least one communication cable in the metal film shielding layer. This application embodiment is through setting up first structural strength reinforcement between the communication cable, avoids because draw the disconnected line risk that the dynamics leads to the communication cable, has improved the reliability of hybrid transmission cable.
On the basis of the above embodiments, the present embodiment further provides a hybrid transmission cable, as shown in fig. 1, in which a second structural strength reinforcement 18 is wrapped between at least one power cable 14 in the metal film shielding layer 12.
Specifically, the wire diameter of the power cable 14 is thicker in general, the bearable pulling force is stronger, when the pulling force required to be borne exceeds the pulling limit of the power cable, or the power cable with the thinner wire diameter is adopted in order to reduce the wire diameter of the hybrid transmission cable, the second structural strength reinforcing member 18 can be wrapped between the at least one power cable 14 according to the requirement, the second structural strength reinforcing member 18 can increase the strength of the at least one power cable 14, and the risk of wire breakage of the power cable 14 is avoided. Illustratively, the second structural strength reinforcement 18 may also be a cable having a relatively low elongation such as hemp, fiberglass, etc. to avoid excessive pulling of the power cable 14.
The hybrid transmission cable that this application embodiment provided, the parcel has second structural strength reinforcement between at least one power cable in the metallic film shielding layer. This application embodiment is through setting up second structural strength reinforcement between the power cable, avoids having improved the reliability that mixes the transmission cable because drag the disconnected line risk that the dynamics leads to the communication cable.
On the basis of the above embodiments, the present embodiment further provides a hybrid transmission cable, as shown in fig. 1, a separation tape 19 is disposed between at least one communication cable 13 and at least one power cable 14 in the metal film shielding layer 12.
Specifically, the separation belt 19 separates at least one communication cable 13 from at least one power cable 14, the at least one communication cable 13 is located on one side of the separation belt 19, the at least one power cable 14 is located on the other side of the separation belt 19, and the separation belt 19 is used for isolating communication signals and electric signals, so that interference of the communication signals and the electric signals is avoided.
In an alternative embodiment, the release tape is a metal film.
According to the hybrid transmission cable provided by the embodiment of the application, the separation belt is arranged between at least one communication cable and at least one power cable in the metal film shielding layer. According to the embodiment of the application, the separation belt is arranged between the at least one communication cable and the at least one power cable, so that the interference between the communication signals and the electric signals in the conduction process is avoided.
On the basis of the above embodiments, the embodiments of the present application further provide a hybrid transmission cable, wherein the insulating layer is a flame retardant rubber insulating layer.
Specifically, the insulating layer is used for insulating communication cable and power cable and external environment, avoids taking place to electrocute danger, and the insulating layer can adopt fire-retardant rubber, carries out electrical insulation on the one hand, carries out fire-retardant on the one hand, avoids mixing communication cable burning under high temperature environment and leads to the cable fracture to take place danger.
In an alternative embodiment, the flame retardant rubber insulation layer is made of high strength insulation rubber or vulcanized rubber.
The embodiment of the application provides a hybrid transmission cable, the insulating layer is fire-retardant rubber insulating layer. This application embodiment is through adopting fire-retardant rubber insulating layer, carries out electrical insulation and fire-retardant, improves the security of mixing transmission cable.
On the basis of the above embodiment, the embodiment of the present application further provides a hybrid transmission cable, wherein the spiral structure 16 is a structure in which the diameter of the spiral circle is a preset diameter, the number of spiral turns is a preset number of spiral turns, a deviation between the preset diameter and 5mm is within a preset range, and the preset number of spiral turns is any one of values from 10 to 15.
Specifically, because the line diameter of communication cable 13 is less, because bending probably leads to communication cable 13 broken string in long-term use, consequently according to the communication cable 13 at the plug radian of bending of use, set up communication cable 13 that is close to connecting terminal 15 one end into helical structure 16, the diameter of spiral circle is the diameter of every spiral circle in the helical structure, and the number of turns of spiral is the quantity of spiral circle in the helical structure.
The preset diameter and the preset number of spiral turns can be determined according to the radian of bending and plugging of the hybrid transmission cable in the transmission process and the inductance value required to be adjusted, the preset diameter can be set to be within a preset range with the deviation existing in the diameter of 5mm, the preset number of spiral turns can be set to be any value of 10-15 turns when the preset diameter is about 5mm, and the application is not limited herein.
For example, fig. 4 is an equivalent electrical schematic diagram of a hybrid transmission cable provided in the embodiment of the present application, and as shown in fig. 4, R is a self-resistance of the hybrid transmission cable, L is an air core inductance after the hybrid transmission cable adopts a spiral structure, C is a parasitic capacitance between a communication cable and a power cable in the hybrid transmission cable, a low-pass filter circuit composed of RCLs can suppress conducted interference to a certain extent, and a cutoff frequency thereof is:
in an alternative embodiment, at least one communication cable is stacked together.
Specifically, because the wire diameter of the communication cable 13 is thin, at least one communication cable 13 is replaced by the same spiral circle diameter for spiral processing, when packaging is carried out, a plurality of communication cables 13 can be overlapped together, and too much space is not occupied, so that the wire diameter of the mixed transmission cable is reduced.
The mixed transmission cable that this application embodiment provided, helical structure is diameter for predetermineeing the diameter for the spiral circle, and the spiral turn is the structure of predetermineeing the spiral turn, predetermines diameter and 5 mm's deviation and predetermines any numerical value in the spiral turn is 10-15 in predetermineeing the within range. This application embodiment is through the spiral circle diameter and the spiral turn that set up helical structure, can restrain the conduction interference that mixed transmission cable produced in transmission process, improves mixed transmission cable's transmission effect.
On the basis of the foregoing embodiments, an embodiment of the present application further provides a low-voltage battery charging circuit, and fig. 5 is a schematic structural diagram of the low-voltage battery charging circuit provided in the embodiment of the present application, and as shown in fig. 5, the low-voltage battery charging circuit includes: in any of the above embodiments, the hybrid transmission cable 10 and the charging module 20, the connection terminal 15 on the hybrid transmission cable 10 is connected to the charging port of the charging module 20.
Specifically, the connection terminal 15 of the hybrid transmission cable 10 is connected to a charging port of the charging module 20 to transmit a charging command through the communication cable 13 in the hybrid transmission cable 10, and the charging module 20 is charged through the power cable in the hybrid transmission cable 10.
In an optional embodiment, the communication cable 13 may be applied to communication networks such as RS485, RS422, RS232, and CAN, but the communication cable is not limited to the above, and may be applied to communication with a communication rate below 10M bps.
In an alternative embodiment, the power cable 14 is not limited to a single phase 220VAC, but may be adapted for use with a variety of electrical transmissions, such as three phase 380VAC, single phase 110VAC, high voltage DC, multi-level DC power transmission, and the like.
The embodiment of the application provides a low-voltage battery charging circuit, including mixed transmission cable and the module of charging, the last connecting terminal of mixed transmission cable connects the mouth that charges of the module of charging. Through the communication cable transmission charging instruction of this application embodiment hybrid transmission cable, the power cable through hybrid transmission cable charges for the module that charges, adopts this hybrid transmission cable can provide the security that the low-voltage battery charges.
On the basis of the foregoing embodiment, an alternating current/direct current charging gun head is further provided in the embodiment of the present application, fig. 6 is a schematic structural diagram of the alternating current/direct current charging gun head provided in the embodiment of the present application, as shown in fig. 6, a hybrid transmission cable 10 obtained in any one of the foregoing embodiments is arranged in the alternating current/direct current charging gun head, and a connection terminal 15 on the hybrid transmission cable 10 is used for connecting a device to be charged 30.
Specifically, the alternating current-direct current rifle head that charges is used for charging for waiting to charge equipment 30, and alternating current-direct current power supply is connected to the one end of mixed charging cable 10, and the other end of mixed transmission cable 10 is connecting terminal 15, and connecting terminal 15 connects and waits to charge equipment 30 to send the instruction of charging through the communication cable 13 in the mixed transmission cable 10, charge equipment 30 of waiting to charge through the power cable in the mixed transmission cable 10.
The alternating current-direct current rifle head that charges that this application embodiment provided is provided with the hybrid transmission cable in the alternating current-direct current rifle head that charges, and connecting terminal on the hybrid transmission cable is used for connecting the equipment of waiting to charge. The rifle head that charges of alternating current-direct current of this application embodiment adopts the mixed transmission cable, can guarantee the security of charging for waiting charging equipment carries out the charging process.
On the basis of the foregoing embodiments, an embodiment of the present application further provides a power module testing tool, fig. 7 is a schematic structural diagram of the power module testing tool provided in the embodiment of the present application, and as shown in fig. 7, a test port on the power module testing tool is connected to the connection terminal 15 of the hybrid transmission cable 10 in any one of the embodiments.
Specifically, the power module test fixture is an automatic test tool for testing the performance of the power module, a plurality of power modules can be arranged on the power module test fixture, and the connecting terminal 15 of the hybrid transmission cable 10 is connected with a test port on the power module test fixture so as to provide test current with certain power for each power module through a power cable in the hybrid transmission cable 10.
According to the power module testing tool, the testing port on the power module testing tool is connected with the connecting terminal of the hybrid transmission cable. The power module test fixture of the embodiment of the application adopts the hybrid transmission cable, and the test safety can be ensured when the test current is provided for the power module.
The above is only the embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A hybrid transmission cable, characterized in that it comprises: the cable comprises an insulating layer, a metal film shielding layer, at least one communication cable, at least one power cable and a connecting terminal;
the metal film shielding layer wraps the outer layers of the at least one communication cable and the at least one power cable, and the insulating layer wraps the outer layer of the metal film shielding layer;
at least one communication cable with the one end of at least one power cable with connecting terminal connects, at least one communication cable is close to connecting terminal's length range in predetermineeing adopts helical structure.
2. The hybrid transmission cable of claim 1, wherein the at least one communication cable is wrapped with a first structural strength reinforcement within the metallic film shield.
3. The hybrid transmission cable of claim 2, wherein a second structural strength reinforcement is wrapped between the at least one power cable within the metallic film shield.
4. The hybrid transmission cable of claim 1, wherein a separation tape is disposed within the metallic film shielding layer between the at least one communication cable and the at least one power cable.
5. The hybrid transmission cable of claim 4, wherein the separation tape is a metal film.
6. The hybrid transmission cable of claim 1, wherein the insulating layer is a flame retardant rubber insulating layer.
7. The hybrid transmission cable of claim 1, wherein the spiral structure has a spiral diameter of a predetermined diameter and a spiral number of predetermined spiral turns, and the deviation of the predetermined diameter from 5mm is within a predetermined range, and the predetermined spiral number is any one of 10 to 15.
8. A low voltage battery charging circuit, comprising: the hybrid transmission cable according to any one of claims 1 to 7, and a charging module, wherein a connection terminal of the hybrid transmission cable is connected to a charging port of the charging module.
9. An alternating current and direct current charging gun head, characterized in that a mixing transmission cable according to any one of claims 1 to 7 is arranged in the alternating current and direct current charging gun head, and a connecting terminal on the mixing transmission cable is used for connecting a device to be charged.
10. A power module testing tool, characterized in that a testing port on the power module testing tool is connected with a connecting terminal of the hybrid transmission cable of any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220131501.3U CN216849378U (en) | 2022-01-18 | 2022-01-18 | Hybrid transmission cable, charging circuit, charging gun head and testing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220131501.3U CN216849378U (en) | 2022-01-18 | 2022-01-18 | Hybrid transmission cable, charging circuit, charging gun head and testing tool |
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| CN216849378U true CN216849378U (en) | 2022-06-28 |
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| CN202220131501.3U Active CN216849378U (en) | 2022-01-18 | 2022-01-18 | Hybrid transmission cable, charging circuit, charging gun head and testing tool |
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| CN (1) | CN216849378U (en) |
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