Separated direct current charging cable and charging gun

Abstract

The utility model relates to the technical field of charging cables, and particularly provides a separated direct-current charging cable and a charging gun, and the cable body of the separated direct-current charging cable is internally provided with a direct-current power line, a protection ground wire, a low-voltage auxiliary power line, a voltage line, a power ground wire and a star flash module. The direct-current power line, the voltage line and the protective ground line are respectively used for conducting, supplying stable voltage and preventing electric leakage; the power ground wire is matched with the protective ground wire for use, so that the effects of preventing electric leakage and faults are achieved; the low-voltage auxiliary power line is used for auxiliary power supply; the satellite flash module is used for receiving and outputting signals; the requirements of electric conduction and signal transmission required by the national standard can be met; moreover, the signal transmission process and the conduction process are thoroughly separated through the star flash module, the phenomenon of mutual interference between signal transmission and conduction is prevented, and when a signal transmission or conduction fault occurs, the corresponding wire and the star flash module can be replaced, so that installation and maintenance are facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of charging cables, in particular to a separated direct current charging cable and a charging gun. BACKGROUND

[0002] The existing direct current charging cable is mainly a cylindrical cable composed of a plurality of core wires, including power lines (DC+ / DC-), communication lines (S+ / S-), auxiliary direct current power lines (A+ / A-), charging connection confirmation lines (CC1 / CC2), ground lines and signal lines; wherein the conductive lines and the signal lines of the cable are together, which may cause mutual interference, and the problem of one core wire may cause the failure of the entire cable, which cannot be partially repaired or replaced.

[0003] Therefore, the existing direct current charging cable has the problem that the signal lines and the conductive lines are arranged together, which are easy to interfere with each other. CONTENT OF THE INVENTION

[0004] In view of the above shortcomings of the prior art, the present application aims to provide a separated direct current charging cable and a charging gun, which aims to solve the problem that the signal lines and the conductive lines of the existing direct current charging cable are arranged together, which are easy to interfere with each other.

[0005] The technical solution adopted by the present application to solve the technical problem is as follows: a separated direct current charging cable, comprising:

[0006] The star flash module comprises a star flash receiving module and a star flash output module which are electrically connected to each other;

[0007] The input end is provided with a direct current power line input port, a protective ground line input port, a low-voltage auxiliary power line input port, a voltage line input port and a power supply ground line input port, and the star flash receiving module is arranged on the input end;

[0008] The output end is provided with a direct current power line output port, a protective ground line output port, a low-voltage auxiliary power line output port, a voltage line output port and a power supply ground line output port, and the star flash output module is arranged on the output end;

[0009] One end of the direct current power line is connected with the direct current power line input port, and the other end of the direct current power line is connected with the direct current power line output port; one end of the protective ground wire is connected with the protective ground wire input port, and the other end of the protective ground wire is connected with the protective ground wire output port; one end of the low-voltage auxiliary power line is connected with the low-voltage auxiliary power line input port, and the other end of the low-voltage auxiliary power line is connected with the low-voltage auxiliary power line output port; one end of the voltage line is connected with the voltage line input port, and the other end of the voltage line is connected with the voltage line output port; one end of the power ground wire is connected with the power ground wire input port, and the other end of the power ground wire is connected with the power ground wire output port.

[0010] The star flash receiving module is used for inputting signals, and the star flash output module is used for receiving the signals input by the star flash receiving module and outputting the signals.

[0011] Further, the cable main body is further provided with a conversion module, and the star flash output module is arranged on the conversion module.

[0012] Further, the star flash output module is further provided with a feedback signal line, a temperature sensing device, a charging connection confirmation line, a charging signal confirmation line and a shielding line, and the shielding line is wrapped outside the feedback signal line, the temperature sensing device, the charging connection confirmation line and the charging signal confirmation line.

[0013] Further, the cross-sectional length of the cable main body is greater than the cross-sectional width, and the direct current power line, the protective ground wire, the low-voltage auxiliary power line, the voltage line and the power ground wire are arranged horizontally in the cable main body.

[0014] Further, the ratio of the cross-sectional area of the direct current power line, the cross-sectional area of the protective ground wire, the cross-sectional area of the low-voltage auxiliary power line, the cross-sectional area of the voltage line and the cross-sectional area of the power ground wire is 35:6.0:2.5:0.5:0.5.

[0015] Further, the direct current power line includes a power positive line and a power negative line, and the low-voltage auxiliary power line includes an auxiliary power positive line and an auxiliary power negative line.

[0016] Further, an electromagnetic lock is arranged between the voltage line and the power ground wire, and the voltage line and the power ground wire are connected through the electromagnetic lock; the feedback signal line includes an electromagnetic lock feedback signal positive line and an electromagnetic lock feedback signal negative line, the temperature sensing device includes a first temperature sensor, a second temperature sensor and a third temperature sensor, the charging connection confirmation line includes a charging communication one line and a charging communication two line, and the charging signal confirmation line includes a first charging connection confirmation line and a second charging connection confirmation line.

[0017] Furthermore, a control board is also provided on the input terminal, and the star flash receiver module is disposed on the control board.

[0018] This application also provides a charging gun, including a charging gun body connected to each other and a separate DC charging cable as described above.

[0019] Furthermore, the charging gun body includes an output connection terminal, with the DC power cord output port located in the middle of the output connection terminal; and the low-voltage auxiliary power cord output port located on one side of the DC power cord output port.

[0020] Compared with existing technologies, this application provides a detachable DC charging cable and charging gun. The detachable DC charging cable includes a DC power line, a protective ground wire, a low-voltage auxiliary power line, a voltage line, a power ground wire, and a star-flash module. The DC power line, voltage line, and protective ground wire are used for conduction, supplying stable voltage, and preventing leakage, respectively. The power ground wire and protective ground wire work together to prevent leakage and malfunctions. The low-voltage auxiliary power line provides auxiliary power. The star-flash module is used for signal reception and output. It meets the national standard requirements for conductivity and signal transmission. Furthermore, the star-flash module completely separates the signal transmission process from the conduction process, preventing interference between signal transmission and conduction. In case of signal transmission or conduction failure, the corresponding wires and star-flash module can be replaced, facilitating installation and maintenance. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the main body of the detachable DC charging cable provided in this application;

[0022] Figure 2 This is a schematic diagram of the star flash output module in the separate DC charging cable provided in this application;

[0023] Figure 3 This is a schematic diagram of the charging gun provided in this application (the area within the dashed box is an enlarged schematic diagram of the output end);

[0024] Figure 4 This is a front view of the charging gun body provided in this application;

[0025] Figure 5 yes Figure 3 Sectional view of AA.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100. Cable body; 200. Input end; 300. Output end; 400. Star flash output module; 500. Control board; 600. Conversion module; 700. Charging gun body; 210. DC power input port; 220. Protective ground input port; 230. Low voltage auxiliary power input port; 240. Voltage input port; 250. Power ground input port; 310. DC power output port; 320. Protective ground output port; 330. Low voltage auxiliary power output port; 340. Voltage output port; 350. Power ground output port; 410. Feedback signal line; 420. Temperature sensing device; 430. Charging connection confirmation line; 440. Charging signal confirmation line; 450. Shielded wire; 510. 710. Starlight receiver module; 211. Output connection terminal; 212. DC power supply positive input port; 231. DC power supply negative input port; 232. Auxiliary power supply positive input port; 311. DC power supply positive output port; 312. DC power supply negative output port; 331. Auxiliary power supply negative output port; 332. Auxiliary power supply positive output port; 411. Electromagnetic lock feedback signal positive line; 412. Electromagnetic lock feedback signal negative line; 421. First temperature sensor; 422. Second temperature sensor; 423. Third temperature sensor; 431. Charging communication line 1; 432. Charging communication line 2; 441. First charging connection confirmation line; 442. Second charging connection confirmation line. Detailed Implementation

[0028] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0029] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] The terms "parallel" and "perpendicular" do not mean that the components must be absolutely parallel or perpendicular, but rather that they can be slightly tilted. For example, "parallel" simply means that its direction is more parallel than "perpendicular," not that the structure must be completely parallel, but that it can be slightly tilted.

[0032] The terms "horizontal," "vertical," and "sag" do not imply that a component must be absolutely horizontal, vertical, or sagging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] Reference Figure 1 and Figure 2 The first embodiment of this application provides a detachable DC charging cable, including a cable body 100, which includes an input end 200 and an output end 300. The cable body 100 contains a DC power line, a protective ground wire, a low-voltage auxiliary power line, a voltage line, a power ground wire, and a star flash module. The star flash module includes a star flash receiver module 510 and a star flash output module 400 electrically connected to each other. The input end 200 has a DC power line input port 210, a protective ground wire input port 220, a low-voltage auxiliary power line input port 230, a voltage line input port 240, and a power ground wire input port 250. The star flash receiver module 510 is located at the input end 200. The output end 300 has a DC power line output port 310, a protective ground wire output port 320, a low-voltage auxiliary power line output port 330, a voltage line output port 340, and a power ground wire output port 350. The star flash output module 400 is located at the output end 300.

[0035] One end of the DC power line is connected to the DC power line input port 210, and the other end of the DC power line is connected to the DC power line output port 310; one end of the protective ground wire is connected to the protective ground wire input port 220, and the other end of the protective ground wire is connected to the protective ground wire output port 320; one end of the low-voltage auxiliary power line is connected to the low-voltage auxiliary power line input port 230, and the other end of the low-voltage auxiliary power line is connected to the low-voltage auxiliary power line output port 330; one end of the voltage line is connected to the voltage line input port 240, and the other end of the voltage line is connected to the voltage line output port 340; one end of the power ground wire is connected to the power ground wire input port 250, and the other end of the power ground wire is connected to the power ground wire output port 350; the star flash receiver module 510 is used to input signals; the star flash output module 400 is used to receive the signals input by the star flash receiver module 510 and output the signals.

[0036] The DC power cord is used to charge or supply power to the equipment. It can be connected to the outside through the DC power cord input port 210, thereby supplying current to the DC power cord output port 310. The protective ground wire is used to connect to the ground and introduce current to the earth in case of leakage or other faults. It can be specifically marked as PE (Protective Earth). A resistor is installed on the protective ground wire to further prevent leakage. The low-voltage auxiliary power cord is used to connect to the external power supply and input low-voltage power to assist in power supply. Specifically, it can be connected to the external power supply equipment through the low-voltage auxiliary power cord input port 230. The voltage line is used to supply power to equipment with a specific voltage value and also has the function of shielding external signal interference to improve the quality of power transmission. It can be specifically marked as 12V. The power ground wire and the protective ground wire are used together to provide a reference point for the circuit and ensure the normal operation of the circuit. It can be specifically marked as GND (Ground). An electromagnetic lock is installed between the voltage line and the power ground wire. The electromagnetic lock is a mechanical device to prevent the charging gun from being plugged or unplugged during charging. When the charging pile starts charging, the electromagnetic lock prevents the charging gun from being plugged or unplugged. The magnetic lock activates, ensuring a tight connection between the charging gun and the car's charging port. Specifically, the voltage line and power ground line supply pulses to the electromagnetic lock, enabling the detachable DC charging cable to lock the charging gun head based on the electromagnetic lock's induction when used. A feedback signal line provides feedback on the electromagnetic lock's status. The StarSignal module is a short-range wireless communication technology, including SLB (Basic Access) and SLE (Small Energy Access). The StarSignal receiver module 510 receives signals and converts the national standard signal into the StarSignal transmission standard signal. The StarSignal output module 400 receives the StarSignal transmission standard signal from the StarSignal receiver module 510, analyzes it, and converts it into a national standard signal for output. This ensures the detachable DC charging cable has the conductivity and signal transmission functions required by national standards. Specifically, the power ground line corresponds to the voltage line, connecting the voltage line to ground to protect it and prevent leakage and other faults.

[0037] Furthermore, by completely separating conductivity and signal transmission through the star strobe module, mutual interference between the two can be prevented. In the event of a signal transmission or conductivity failure, the corresponding wires and star strobe module can be replaced, facilitating installation and maintenance.

[0038] The separate DC charging cable of this embodiment includes a DC power supply line, a protective ground wire, a low-voltage auxiliary power supply line, a voltage line, a power ground wire, and a star-flash module in its main body 100. The DC power supply line, voltage line, and protective ground wire are used for conduction, supplying stable voltage, and preventing leakage, respectively. The power ground wire and protective ground wire are used together to prevent leakage and malfunctions. The low-voltage auxiliary power supply line is used for auxiliary power supply. The star-flash module is used for signal reception and output. It meets the national standard requirements for conduction and signal transmission. Furthermore, the star-flash module completely separates the signal transmission process from the conduction process, preventing interference between signal transmission and conduction. In case of signal transmission or conduction failure, the corresponding wires and star-flash module can be replaced, facilitating installation and maintenance.

[0039] In some embodiments, the DC power line includes a positive power line and a negative power line, and the low-voltage auxiliary power line includes an auxiliary power line and an auxiliary power line.

[0040] The positive power supply line is the positive terminal of the DC power supply, and can be specifically marked as DC+; the negative power supply line is the negative terminal of the DC power supply, and can be specifically marked as DC-; the positive auxiliary power supply line refers to the positive terminal of the auxiliary power supply positive line, and can be specifically marked as A+; the negative auxiliary power supply line refers to the negative auxiliary power supply line, and can be specifically marked as A-.

[0041] Specifically, the DC power input port 210 includes a DC power positive input port 211 and a DC power negative input port 212, and the DC power output port 310 includes a DC power positive output port 311 and a DC power negative output port 312; one end of the positive power line is connected to the DC power positive input port 211, and the other end is connected to the DC power positive output port 311; one end of the negative power line is connected to the DC power negative input port 212, and the other end is connected to the DC power negative output port 312.

[0042] The low-voltage auxiliary power supply input port 230 includes an auxiliary power positive line input port 231 and an auxiliary power negative line input port 232. The low-voltage auxiliary power supply output port 330 includes an auxiliary power positive line output port 332 and an auxiliary power negative line output port 331. One end of the auxiliary power positive line is connected to the auxiliary power positive line input port 231, and the other end is connected to the auxiliary power positive line output port 332. One end of the auxiliary power negative line is connected to the auxiliary power negative line input port 232, and the other end is connected to the auxiliary power negative line output port 331.

[0043] In some embodiments, the cable body 100 is further provided with a conversion module 600, and the star-flash output module 400 is disposed on the conversion module 600. The star-flash output module 400 can complete signal conversion through the conversion module 600. Specifically, the conversion module 600 can be a circle-to-rectangle conversion module 600; providing the star-flash output module 400 on the conversion module 600 can improve the signal conversion efficiency of the star-flash output module 400.

[0044] In some embodiments, the star flash output module 400 is further provided with a feedback signal line 410, a temperature sensing device 420, a charging connection confirmation line 430, a charging signal confirmation line 440, and a shielding line 450, wherein the shielding line 450 is wrapped around the outside of the feedback signal line 410, the temperature sensing device 420, the charging connection confirmation line 430, and the charging signal confirmation line 440.

[0045] The feedback signal line 410 is used to receive, transmit, and provide feedback signals indicating the current status. The temperature sensing device 420 is used to sense the temperature of the star flash output module 400, thereby adjusting the power of the star flash output module 400 to prevent overheating. The charging connection confirmation line 430 is used to confirm whether the charging connection is in progress and to check whether the charging connection is normal, preventing abnormal situations during the charging process. The charging signal confirmation line 440 is used to confirm whether the charging signal is correct, thereby working with the charging connection confirmation line 430 to determine whether the charging connection is in progress and to check whether the charging connection is normal. The shielding line 450 is a structure added in this embodiment and is not part of the original power line and signal line. It is mainly used to wrap around the feedback signal line 410, the temperature sensing device 420, the charging connection confirmation line 430, and the charging signal confirmation line 440 to shield against electromagnetic interference. Specifically, it can be marked as S. Specifically, it prevents internal signals from being interfered with by external electromagnetic interference and avoids internal signals from causing signal interference to external devices or other components, further separating conductivity from signal transmission to prevent mutual interference.

[0046] In some embodiments, an electromagnetic lock is provided between the voltage line and the power ground line, and the voltage line and the power ground line are connected through the electromagnetic lock; the feedback signal line 410 includes an electromagnetic lock feedback signal positive line 411 and an electromagnetic lock feedback signal negative line 412; the temperature sensing device 420 includes a first temperature sensor 421, a second temperature sensor 422 and a third temperature sensor 423; the charging connection confirmation line 430 includes a charging communication first line 431 and a charging communication second line 432; and the charging signal confirmation line 440 includes a first charging connection confirmation line 441 and a second charging connection confirmation line 442.

[0047] The feedback signal line 410 is equipped with a microswitch, which is connected to the electromagnetic lock. The electromagnetic lock's status signal is then fed back via the positive feedback signal line 411 and the negative feedback signal line 412. The positive feedback signal line 411 is the positive terminal of the feedback signal line 410, and can be specifically labeled SIGN+. The negative feedback signal line 412 is the negative terminal of the feedback signal line 410, and can be specifically labeled SIGN-. The first temperature sensor 421, the second temperature sensor 422, and the third temperature sensor 423 correspond to specific devices and systems and can be configured according to actual needs. The identifiers can be T1+, T-, and T+, respectively; the first charging communication line 431 is the CAN_H line, and the second charging communication line 432 is the CAN_L line. The CAN_H and CAN_L lines together form the CAN bus for data transmission between the vehicle and the charging equipment; the first charging connection confirmation line 441 and the second charging connection confirmation line 442 are used together to confirm the charging connection between the charging pile and the vehicle. Specifically, the first charging connection confirmation line 441 is identified as CC1 and is used for charging connection confirmation detection of the charging pile, and the second charging connection confirmation line 442 is identified as CC2 and is used for charging connection confirmation detection of the vehicle.

[0048] The Star Flash output module 400 can quickly receive, convert, transmit, and provide feedback signals through the aforementioned feedback signal line 410 and temperature sensing device 420. It can be compatible with specific devices and systems and prevents the Star Flash output module 400 from overheating. At the same time, it detects the charging connection status of the device through the charging connection confirmation line 430 and the charging signal confirmation line 440. This improves the signal transmission efficiency and range of the separate DC charging cable, enhances the control of the charging connection, prevents abnormal charging connection, and eliminates the need for separate signal lines.

[0049] In some embodiments, the cross-sectional length of the cable body 100 is greater than its cross-sectional width; the DC power line, protective ground wire, low-voltage auxiliary power line, voltage line and power ground wire are all arranged laterally within the cable body 100.

[0050] The cross-sectional length of the cable body 100 is greater than its cross-sectional width, meaning the cross-section of the cable body 100 is flat. This reduces the bending radius of the cable body 100. Specifically, the cable body 100 uses flat braided fine copper wire, which does not damage the conductor when bent, significantly increasing its bendability and making it convenient to use. Furthermore, the DC power line, protective ground wire, low-voltage auxiliary power line, voltage line, and power ground wire are all arranged horizontally on the cable body 100, reducing the contact area between them. This facilitates heat dissipation for these conductors, preventing excessive heat concentration in the cable body 100 during operation, extending its service life, reducing energy loss due to heat, and further improving cable power output.

[0051] To improve the current transmission capability and signal stability of the split DC charging cable, the cross-sectional areas of the DC power line, protective ground wire, low-voltage auxiliary power line, voltage line, and power ground wire are optimized. In some embodiments, the ratio of the cross-sectional areas of the DC power line, the protective ground wire, the low-voltage auxiliary power line, the voltage line, and the power ground wire is 35:6.0:2.5:0.5:0.5. Specifically, the cross-sectional area of ​​the DC power line is 35mm². 2 The cross-sectional area of ​​the protective grounding wire is 6mm². 2 The cross-sectional area of ​​the low-voltage auxiliary power supply line is 2.5 mm². 2 The cross-sectional area of ​​both the voltage line and the power ground line is 0.5 mm². 2 .

[0052] The cross-sectional area of ​​the DC power supply line can meet the needs of large currents, and as the current increases, the DC power supply line can be divided into several pairs of positive and negative DC power supply lines; the cross-sectional area of ​​the voltage line can meet the requirement of providing a stable 12V voltage; the cross-sectional area settings of the protective ground line and the power ground line, based on the size of the DC power supply line's cross-sectional area, can provide a sufficiently low resistance path, allowing fault current to flow quickly into the ground; the cross-sectional area of ​​the low-voltage auxiliary power supply line can ensure the provision of low-voltage power for auxiliary power supply without affecting the normal use of the DC power supply line.

[0053] In some embodiments, a control board 500 is also provided on the input terminal 200, and the star flash receiver module 510 is disposed on the control board 500. The control board 500 can be used to adjust and control the star flash receiver module 510, thereby receiving specific signals and filtering out redundant signals, preventing interference from external magnetic fields and redundant signals, and improving the quality of signal reception and transmission.

[0054] Reference Figure 3 , Figure 4 andFigure 5 The second embodiment of this application provides a charging gun, including a charging gun body 700 interconnected with each other and a separate DC charging cable as described in the first embodiment or any of its embodiments. The separate DC charging cable supplies power to the charging gun body 700, separating the charging process from the signal transmission process, reducing mutual interference between the two, and ensuring stable operation of both the charging and signal transmission processes. Furthermore, the signal transmission range is within a circumference of 200 meters or more, eliminating the need for separate signal lines when a star-flash module is included, thus reducing the production cost of the charging gun.

[0055] In some embodiments, the charging gun body 700 includes an output connection terminal 710, with the DC power line output port 310 located in the middle of the output connection terminal 710; the low-voltage auxiliary power line output port 330 is located on one side of the DC power line output port 310. The output connection terminal 710 is the output port of the charging gun body 700, and the charging gun body 700 can charge the device or equipment to be powered through the output connection terminal 710.

[0056] The DC power line output port 310 is located in the middle of the output connection end 710, which can shorten the distance between the DC power line output port 310 and the other wire output ports, ensuring power supply effect. The DC power line output port 310 and the low-voltage auxiliary power line output port 330 are arranged vertically on the output connection end 710. The DC power line output port 310 includes a positive power line output port and a negative power line output port, and the low-voltage auxiliary power line output port 330 includes an auxiliary power positive output port 332 and an auxiliary power negative output port 331.

[0057] The protective grounding output port 320 is located between the auxiliary power positive output port 332 and the auxiliary power negative output port 331, on one side of the DC power line output port 310; the charging signal confirmation line 440 is located between the power positive output port and the power negative output port, on the side of the DC power line output port 310 away from the low-voltage auxiliary power line output port 330; the charging communication first line 431 and the charging communication second line 432 are located on the side of the DC power line output port 310 of the charging signal confirmation line 440 close to the charging signal confirmation line 440; a second charging connection confirmation line 442 is also provided between the charging communication first line 431 and the charging communication second line 432 as a spare line for the first charging connection confirmation line 441.

[0058] The charging signal confirmation line 440 and the charging connection confirmation line 430 are both located at the end of the DC power line output port 310 away from the low-voltage auxiliary power line output port 330. This separates the signal transmission process of the star flash output module 400 from the charging process of the DC power line and the signal transmission process of the low-voltage auxiliary power line, reducing electromagnetic interference and ensuring the stability and accuracy of signal transmission. At the same time, the protective grounding output port 320 is located close to the DC power line output port 310, which can quickly conduct current to the ground in the event of a leakage fault, ensuring the safety of personnel and equipment. The charging signal confirmation line 440 is located close to the DC power line output port 310, which helps to accurately control and manage the charging process.

[0059] In summary, this application provides a detachable DC charging cable and a charging gun. The detachable DC charging cable includes a DC power line, a protective ground wire, a low-voltage auxiliary power line, a voltage line, a power ground wire, and a star-flash module. The DC power line, voltage line, and protective ground wire are used for conduction, supplying stable voltage, and preventing leakage, respectively. The power ground wire and protective ground wire work together to prevent leakage and malfunctions. The low-voltage auxiliary power line provides auxiliary power. The star-flash module is used for signal reception and output. It meets the national standard requirements for conductivity and signal transmission. Furthermore, the star-flash module completely separates the signal transmission process from the conduction process, preventing interference between signal transmission and conduction. In case of signal transmission or conduction failure, the corresponding conductive wire and star-flash module can be replaced, facilitating installation and maintenance.

[0060] Finally, it should be noted that the above examples are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing examples, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions in the examples of this application.

Claims

1. A detachable DC charging cable, characterized in that, include: The cable body includes an input end and an output end; the cable body contains a DC power line, a protective ground wire, a low-voltage auxiliary power line, a voltage line, a power ground wire, and a star flash module; the star flash module includes a star flash receiving module and a star flash output module that are electrically connected to each other. The input terminal is provided with a DC power line input port, a protective ground input port, a low-voltage auxiliary power line input port, a voltage line input port, and a power ground input port. The star flash receiver module is located on the input terminal. The output terminal is provided with a DC power line output port, a protective ground output port, a low-voltage auxiliary power line output port, a voltage line output port, and a power ground output port. The star flash output module is located on the output terminal. One end of the DC power line is connected to the DC power line input port, and the other end of the DC power line is connected to the DC power line output port; one end of the protective ground wire is connected to the protective ground wire input port, and the other end of the protective ground wire is connected to the protective ground wire output port; one end of the low-voltage auxiliary power line is connected to the low-voltage auxiliary power line input port, and the other end of the low-voltage auxiliary power line is connected to the low-voltage auxiliary power line output port; one end of the voltage line is connected to the voltage line input port, and the other end of the voltage line is connected to the voltage line output port; one end of the power ground wire is connected to the power ground wire input port, and the other end of the power ground wire is connected to the power ground wire output port. The star flash receiving module is used to input signals; the star flash output module is used to receive the signals input by the star flash receiving module and output the signals.

2. The detachable DC charging cable according to claim 1, characterized in that, The cable body is also equipped with a conversion module, and the star flash output module is mounted on the conversion module.

3. The detachable DC charging cable according to claim 2, characterized in that, The star flash output module is also equipped with a feedback signal line, a temperature sensing device, a charging connection confirmation line, a charging signal confirmation line, and a shielding line. The shielding line is wrapped around the outside of the feedback signal line, the temperature sensing device, the charging connection confirmation line, and the charging signal confirmation line.

4. The detachable DC charging cable according to claim 1, characterized in that, The cross-sectional length of the cable body is greater than its cross-sectional width; the DC power line, protective ground wire, low-voltage auxiliary power line, voltage line and power ground wire are all arranged horizontally within the cable body.

5. The detachable DC charging cable according to claim 1, characterized in that, The ratio of the cross-sectional area of ​​the DC power line, the cross-sectional area of ​​the protective ground wire, the cross-sectional area of ​​the low-voltage auxiliary power line, the cross-sectional area of ​​the voltage line, and the cross-sectional area of ​​the power ground wire is 35:6.0:2.5:0.5:0.

5.

6. The detachable DC charging cable according to claim 1, characterized in that, The DC power supply line includes a positive power supply line and a negative power supply line, and the low-voltage auxiliary power supply line includes an auxiliary power supply positive line and an auxiliary power supply negative line.

7. The detachable DC charging cable according to claim 3, characterized in that, An electromagnetic lock is provided between the voltage line and the power ground line, and the voltage line and the power ground line are connected through the electromagnetic lock; the feedback signal line includes a positive electromagnetic lock feedback signal line and a negative electromagnetic lock feedback signal line; the temperature sensing device includes a first temperature sensor, a second temperature sensor, and a third temperature sensor; the charging connection confirmation line includes a first charging communication line and a second charging communication line; and the charging signal confirmation line includes a first charging connection confirmation line and a second charging connection confirmation line.

8. The detachable DC charging cable according to claim 1, characterized in that, The input terminal is also equipped with a control board, and the star flash receiver module is mounted on the control board.

9. A charging gun, characterized in that, It includes an interconnected charging gun body and a separate DC charging cable according to any one of claims 1 to 8.

10. The charging gun according to claim 9, characterized in that, The charging gun body includes an output connection terminal, and the DC power line output port is located in the middle of the output connection terminal; the low-voltage auxiliary power line output port is located on one side of the DC power line output port.

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