Electric locomotive coupling reconnection system based on high-voltage electric connector

Abstract

The invention discloses an electric locomotive coupling reconnection system based on high-voltage electric connectors, which belongs to the technical field of rail transit circuit equipment and is composed of a group of high-voltage electric connectors and a management host. One group of high-voltage electric connectors comprises two high-voltage electric connectors which are matched with each other, and the two high-voltage electric connectors are respectively arranged on two electric locomotives for coupling and reconnection; the high-voltage electric connector comprises a mounting seat which is fixed on the electric locomotive and is connected with the management host through a connecting cable, and a front frame body is arranged at the front end of the mounting seat; a contact module is arranged in the front frame body and comprises a high-voltage contact module for realizing current transmission between the electric locomotives and a control contact module for realizing signal transmission between the electric locomotives. According to the high-voltage electric connector, two locomotive high-voltage circuits and control circuits can be automatically connected, high-voltage and large-current transmission and control circuit electric signal transmission are completed, and the working state of the high-voltage electric connector is monitored in real time.

Description

Technical Field

[0001] This invention belongs to the field of rail transit circuit equipment technology, specifically a coupling and multiple-unit system for electric locomotives based on high-voltage electrical connectors. Background Technology

[0002] The high-voltage electrical connector for electric locomotives is a key component used to connect the high-voltage circuits and control circuits of two locomotives or locomotives and rolling stock when they are coupled together, so as to realize the transmission of high voltage and high current and the transmission of electrical signals from the control circuits. Under normal circumstances, the high-voltage electrical connector for electric locomotives is installed at both ends of each locomotive or rolling stock parallel to the coupler position. It relies on the force of the locomotive coupling coupler to simultaneously connect and disconnect with the coupler.

[0003] In the existing field of high-voltage electrical connectors, it is difficult to achieve automatic connection of the high-voltage circuits and control circuits of two locomotives when they are coupled together; at the same time, it does not have the function of real-time monitoring of the status of high-voltage electrical connectors during the transmission of high voltage and high current and control circuit electrical signals. Summary of the Invention

[0004] To address the above problems, this invention provides an electric locomotive coupling and multiple-unit system based on a high-voltage electrical connector, which can automatically connect the high-voltage circuit and control circuit of two locomotives, complete the transmission of high voltage and high current and the transmission of electrical signals of the control circuit, and monitor the working status of the high-voltage electrical connector in real time.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A high-voltage electric locomotive coupling and multiple-unit operation system based on high-voltage electric connectors comprises a set of high-voltage electric connectors and a management host. The set of high-voltage electric connectors includes two mating high-voltage electric connectors, each mounted on one of two electric locomotives used for coupling and multiple-unit operation. Each high-voltage electric connector includes a mounting base fixed to the electric locomotive and connected to the management host via a connecting cable. A front frame is provided at the front end of the mounting base. A contact module is provided within the front frame, comprising a high-voltage contact module for transmitting electric current within the locomotive and a control contact module for transmitting electric signal within the locomotive.

[0007] As a further improvement to the above solution, a 720-degree swaying head assembly is provided between the mounting base and the front frame; the 720-degree swaying head assembly includes connecting plates respectively fixedly mounted on the mounting base and the front frame, a spring frame is provided between the two connecting plates, and a rubber stack is provided on the outside of the spring frame.

[0008] As a further improvement to the above solution, a front protection module is provided at the front end of the front frame; the front protection module includes a front protection cover provided in front of the high-voltage contact module and the control contact module; the front protection cover is provided with an opening and closing mechanism in front of the high-voltage contact module and the control contact module.

[0009] As a further improvement to the above solution, a bellows cover is provided between the side of the front protective cover and the front end of the front frame, and a sealing strip is provided between the front protective cover and the bellows cover.

[0010] As a further improvement to the above solution, a self-locking module is also provided in the front frame, which is an electromagnet structure controlled by the host computer; the front end of the self-locking module is located on the outside of the front protective cover.

[0011] As a further improvement to the above solution, a source-finding guide module is provided on the outer front end of the front frame; the source-finding guide module includes guide posts and conical hole positioning seats respectively provided on both sides of the front frame, and the guide posts and conical hole positioning seats cooperate with each other.

[0012] As a further improvement to the above solution, a compression spring is provided between the front contact and the rear contact of the contact module, and it is a cage-type spring-loaded socket structure; the front contact and the rear contact are provided with insulation protection on their outer sides.

[0013] As a further improvement to the above solution, a monitoring module is also provided in the front frame. The monitoring module is an integrated sensor module used to collect data on running time parameters, humidity parameters, temperature parameters, and high-voltage connector contact pressure parameters.

[0014] As a further improvement to the above solution, the management host includes a power conversion circuit, an M1808 chip core board, an RTC clock circuit, a storage interface circuit, a display driver circuit, an I / O conversion circuit, a debugging interface circuit, a communication interface circuit, and a display screen; the M1808 chip core board is connected to a power supply through the power conversion circuit; the M1808 chip core board is also connected to the RTC clock circuit, the storage interface circuit, the display driver circuit, the I / O conversion circuit, the debugging interface circuit, and the communication interface circuit respectively, and the M1808 chip core board is connected to a display screen through the display driver circuit.

[0015] As a further improvement to the above solution, the management host and the monitoring module are connected in a chain network via a CAN channel; the power conversion circuit outputs 24V / 12V power to power the high-voltage connector monitoring host.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The high-voltage electrical connectors of the electric locomotives are installed at both ends of each locomotive or rolling stock, parallel to the coupler position. When two locomotives or rolling stock are coupled together, the connectors automatically connect to the couplers, relying on the force of the coupling, thus automatically connecting the high-voltage circuits and control circuits of the two locomotives. This enables the transmission of high voltage and high current, as well as electrical signals from the control circuits. The connectors also automatically disconnect when the couplers disengage. The entire operation requires no manual intervention, achieving unmanned operation.

[0018] 2. The 720-degree swing head module of the high-voltage electrical connector for electric locomotives connects the high-voltage electrical connector mounting base and the front frame, and is a key component enabling the 720-degree swing head function of the connector. The swing head module adopts a structural design combining a new type of composite rubber and a spring skeleton, and is manufactured using specialized molds and high-pressure injection molding processes to ensure the high density of the swing head and the bonding strength with the spring skeleton. This ensures the stability, reliability, and safety of the front frame in locomotive and rolling stock coupling operation scenarios, allowing the high-voltage electrical connector to move in any direction (front-back, left-right) while maintaining the contact pressure of the high-voltage connector, thus achieving the 720-degree swing head function of the connector.

[0019] 3. High-voltage electrical connectors for electric locomotives must withstand various harsh environments, such as dust, humidity, and salt spray contamination. The high-voltage connector's front-end protection module is installed at the front end of the connector. During locomotive or vehicle coupling, the relative motion of the locomotive or vehicle causes contact, and the module moves towards the rear of the high-voltage connector, automatically opening the contacts within its designed travel range. When the locomotive or vehicle disengages, its spring structure automatically closes the contacts. No manual intervention is required. The protection rating reaches IP67, ensuring stable operation and resistance to damage or failure.

[0020] 4. The self-locking module of the high-voltage connector in electric locomotives is a self-locking structural component that ensures the safety and stability of the connection, and increases its shock resistance and durability during operation after the high-voltage connector is mated. The self-locking module uses an electromagnet as the power source for the self-locking structure, controlling the locking and unlocking of the module by turning the power on and off. This effectively prevents accidental removal and loosening of the locomotive or vehicle during operation. It continuously maintains the contact pressure of the high-voltage connector contacts, ensuring the reliability and safety of the high-voltage connector during locomotive operation.

[0021] 5. The high-voltage electrical connectors of electric locomotives adopt modular design and easy-to-disassemble structure, which facilitates maintenance personnel to inspect or replace parts and reduces maintenance costs. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the system configuration of the present invention.

[0023] Figure 2 This is a three-dimensional structural diagram of the high-voltage electrical connector in this invention.

[0024] Figure 3 This is a three-dimensional structural diagram of the 720-degree head-swinging module in this invention.

[0025] Figure 4 This is a schematic diagram showing the positional relationship of the spring skeleton in this invention.

[0026] Figure 5 This is a three-dimensional structural diagram of the front frame 2 in this invention.

[0027] Figure 6 This is a schematic diagram of the front protection module in this invention.

[0028] Figure 7 This is a top view schematic diagram of the source-finding and guiding module in this invention.

[0029] Figure 8 This is a three-dimensional structural diagram of the opening and closing mechanism in this invention.

[0030] Figure 9 This is a front view schematic diagram of the contact module in this invention.

[0031] Figure 10 for Figure 9 A schematic diagram of the cross-sectional structure of AA.

[0032] Figure 11 for Figure 9 A schematic diagram of the cross-sectional structure of BB.

[0033] Figure 12 This is a block diagram of the system configuration of the management host in this invention.

[0034] In the diagram: 1. Mounting base; 2. Front frame; 3. Contact module; 4. 720-degree oscillating head assembly; 5. Front protection module; 6. Self-locking module; 7. Source tracing guide module; 8. Monitoring module; 31. High-voltage contact module; 32. Control contact module; 41. Connecting plate; 42. Spring frame; 43. Rubber stack; 51. Front protective cover; 52. Opening and closing mechanism; 53. Bellows cover; 54. Sealing strip; 71. Guide column; 72. Conical hole positioning seat. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.

[0036] like Figures 1-10As shown, the specific solution of this embodiment is as follows: a high-voltage electric locomotive coupling and multiple-unit system based on high-voltage electric connectors, which consists of a set of high-voltage electric connectors and a management host; the set of high-voltage electric connectors includes two mutually cooperating high-voltage electric connectors, and the two high-voltage electric connectors are respectively installed on two electric locomotives used for coupling and multiple-unit operation; the high-voltage electric connector includes a mounting base 1 fixed on the electric locomotive and connected to the management host through a connecting cable, and a front frame 2 is provided at the front end of the mounting base 1; a contact module 3 is provided inside the front frame 2, and the contact module 3 includes a high-voltage contact module for realizing the current transmission in the electric locomotive workshop and a control contact module for realizing the signal transmission in the electric locomotive workshop.

[0037] like Figures 1-10 As shown, in a preferred embodiment of the above, a 720-degree swaying head assembly 4 is provided between the mounting base 1 and the front frame 2; the 720-degree swaying head assembly 4 includes connecting plates 41 respectively fixedly mounted on the mounting base 1 and the front frame 2, a spring frame 42 is provided between the two connecting plates 41, and a rubber stack 43 is provided on the outside of the spring frame 42.

[0038] like Figures 1-10 As shown, in a preferred embodiment, the front frame 2 is provided with a front protection module 5 at its front end; the front protection module 5 includes a front protection cover 51 provided in front of the high voltage contact module and the control contact module; the front protection cover 51 is provided with an opening and closing mechanism 52 in front of the high voltage contact module and the control contact module.

[0039] like Figures 1-10 As shown, in a preferred embodiment of the above, a bellows cover 53 is provided between the side of the front protective cover 51 and the front end of the front frame 2, and a sealing strip 54 is provided between the front protective cover 51 and the bellows cover 53.

[0040] like Figures 1-10 As shown, in a preferred embodiment, a self-locking module 6 is also provided inside the front frame 2. The self-locking module 6 is an electromagnet structure controlled by the management host. The front end of the self-locking module 6 is located outside the front protective cover 51.

[0041] like Figures 1-10 As shown, in a preferred embodiment, a source-finding guide module 7 is provided on the outer side of the front end of the front frame 2; the source-finding guide module 7 includes guide posts 71 and conical hole positioning seats 72 respectively provided on both sides of the front frame 2, and the guide posts 71 and conical hole positioning seats 72 cooperate with each other.

[0042] like Figures 1-10 As shown, in a preferred embodiment of the above embodiment, a compression spring is provided between the front contact and the rear contact of the contact module 3, and it is a cage-type spring-loaded socket structure; the front contact and the rear contact are provided with insulation protection on their outer sides.

[0043] like Figures 1-10 As shown, in a preferred embodiment of the above, a monitoring module 8 is also provided in the front frame 2. The monitoring module 8 is an integrated sensor module for collecting data on running time parameters, humidity parameters, temperature parameters and high-voltage connector contact pressure parameters.

[0044] like Figures 1-10 As shown, in a preferred embodiment of the above, the management host includes a power conversion circuit, an M1808 chip core board, an RTC clock circuit, a storage interface circuit, a display driver circuit, an I / O conversion circuit, a debug interface circuit, a communication interface circuit, and a display screen; the M1808 chip core board is connected to a power source through the power conversion circuit; the M1808 chip core board is also connected to the RTC clock circuit, the storage interface circuit, the display driver circuit, the I / O conversion circuit, the debug interface circuit, and the communication interface circuit, respectively, and the M1808 chip core board is connected to a display screen through the display driver circuit.

[0045] like Figures 1-10 As shown, in a preferred embodiment, the management host and the monitoring module 8 are connected in a chain network via a CAN channel; the power conversion circuit outputs 24V / 12V power to power the high-voltage connector monitoring host.

[0046] In this invention:

[0047] The high-voltage electrical connector mounting base 1 for electric locomotives is a necessary component that provides stable support for the electrical connector, ensures its operational stability, and facilitates connection with the locomotive or vehicle. To ensure its mechanical strength, it is made of 6063-T4 aluminum alloy and manufactured using a CNC machining center single-piece forming process.

[0048] The 720° swing head module of the high-voltage electrical connector for electric locomotives connects the high-voltage electrical connector mounting base 1 and the front frame 2. It is a key component enabling the 720° swing head function of the connector. The swing head module adopts a new composite rubber and spring skeleton 42 structure design, manufactured using specialized molds and high-pressure injection molding processes to ensure the high density of the swing head and the bonding strength with the spring skeleton 42. This ensures the stability, reliability, and safety of the front frame 2 in locomotive and rolling stock coupling applications, allowing the high-voltage electrical connector to move in any direction (front-back, left-right) while maintaining contact pressure, thus achieving the 720° swing head function of the connector.

[0049] The 720° swing head module adopts a new composite rubber and spring skeleton 42 structure design, and is manufactured using a special mold and high pressure injection process to ensure the high density of the swing head stack and the bonding strength with the spring skeleton 42.

[0050] The front frame 2 of the high-voltage connector is used to support the front protection module 5, the source guidance module 7, the high-voltage contact module, the control contact module, the high-voltage connector self-locking module 6, the high-voltage connector status monitoring module 8, and to withstand the vibration and impact during high-voltage connector mating. It is manufactured by a five-axis machining center after high-pressure precision casting of aluminum alloy A380. As the basic structure of the high-voltage connector, the front frame 2 plays a crucial role in providing stable structural support for the equipment, supporting other components and accessories, facilitating maintenance and repair, and meeting the application scenarios of locomotive operation.

[0051] The high-voltage connector front-end protection module 5 is a key component ensuring the safe and stable operation of high-voltage connector equipment. Connector contacts, as a crucial part of high-voltage connector equipment, are often exposed to various risks, including poor contact due to dust, dirt, or water intrusion, arc flashover, and accidental contact. The high-voltage connector front-end protection device, through its unique structural design and function, effectively reduces safety hazards, ensures the overall protection level of the equipment, and improves operational safety and stability.

[0052] The high-voltage connector front protection module 5 is installed at the front end of the high-voltage connector. During coupling or linkage of locomotives or vehicles, it utilizes the relative motion of the locomotives or vehicles to move towards the rear end of the high-voltage connector after contact, automatically opening the contacts within its designed stroke. When the locomotive or vehicle disengages, its spring structure automatically closes the contacts. No manual intervention is required.

[0053] The high-voltage connector locating and guiding module 7 for electric locomotives is a crucial component that automatically adjusts the alignment of the high-voltage connectors during locomotive or vehicle coupling, ensuring accurate alignment and connection of the front ends of the A and B units of the high-voltage connector. The high-voltage connector locating and guiding module 7 consists of two parts: a guide post 71 and a tapered hole positioning seat 72. The guide post 71 has a spherical design at its front end. The mating surfaces of the guide post 71 and the tapered hole positioning seat 72 are machined, heat-treated, and precision-ground to ensure the high-voltage connector locating and guiding module 7 can withstand impact and ensure smooth connection during coupling operations. The guide post 71 and the tapered hole positioning seat 72 are symmetrically installed on the left and right sides of the front frame 2 of the high-voltage connector. During locomotive or vehicle coupling, the spherical surface of the guide post 71 first contacts the arc surface of the tapered hole. Through the force of the coupling, the guide post adjusts along the arc surface of the tapered hole positioning seat 72 and finally inserts into the hole of the tapered hole positioning seat 72. This automatically achieves accurate alignment and connection of the A and B units of the high-voltage connector.

[0054] The self-locking module 6 of the high-voltage connector for electric locomotives is a self-locking structural component that ensures the safety and stability of the connection, and increases its shock resistance and durability during operation after the high-voltage connector is mated. The self-locking module 6 effectively prevents accidental pull-out and loosening of the locomotive or vehicle during operation. It continuously maintains the contact pressure of the high-voltage connector contacts, ensuring reliable and safe operation of the equipment. The self-locking module 6 uses an electromagnet as the power source for the self-locking structure, and the locking and unlocking operations of the self-locking module 6 are controlled by power-on and power-off. It features good control performance, fast response, simple maintenance, high load capacity, good stability, and long service life.

[0055] The high-voltage contact module of the electric locomotive high-voltage connector is the core component of the connector, primarily responsible for transmitting high-voltage, high-current signals through the locomotive's power lines. The control contact module is a key component responsible for transmitting electrical signals through the locomotive's power lines, enabling control and communication between locomotives or vehicles. Both the high-voltage and control contacts feature a planar contact design at the front end and a "cage-type spring hole" structure at the rear end to ensure contact pressure. The contacts are made of copper alloy, precision-machined, and hard-gold plated to achieve low contact resistance and excellent conductivity.

[0056] The high-voltage contacts and control contacts are secured to the electrical medium using insulating ceramic bases, while the front-end electrical medium uses insulating silicone rubber material. The rear contacts are bolted to the wires, and the bolted connection is protected by a high-voltage insulating silicone rubber box.

[0057] The high-voltage connector monitoring module 8 for electric locomotives is a core component responsible for real-time monitoring of the operating status of the high-voltage connectors. The design utilizes integrated sensor modules to collect data, and the monitoring host displays the real-time operating status of the high-voltage connectors, including key parameters such as operating time, temperature, humidity, and high-voltage connector contact pressure.

[0058] The high-voltage connector monitoring module 8 has a reserved communication multi-functional train bus (MVB), which is widely used on rail transit trains. Due to the high speed of trains and the relatively complex application scenarios, the requirements for communication speed and stability are higher. The MVB communication rate is 1.5M. To ensure communication stability, it has two communication lines, A line and B line. If one line fails, it can quickly switch to the other to ensure that the system can continue to operate normally and stably.

[0059] The high-voltage connector monitoring host for electric locomotives is responsible for analyzing the data collected by the high-voltage connector monitoring module 8, including key parameters such as operating time, temperature, humidity, insulation status, and high-voltage connector contact pressure, in real time. The high-voltage connector monitoring host and the connector monitoring module 8 are connected via a CAN channel to form a chain network, enabling communication. It predicts and displays the operating status of the high-voltage connector in real time and provides timely warnings in case of any abnormalities.

[0060] The high-voltage connector monitoring host for electric locomotives is installed in the locomotive driver's cab, with one monitoring host configured in each driver's cab. Each monitoring host is responsible for real-time analysis of the data collected by the two high-voltage connector monitoring modules 8. The system architecture of the monitoring host includes a power conversion circuit, an M1808 chip core board, an RTC clock circuit, a storage interface circuit, a display driver circuit, an I / O conversion circuit, a debugging interface circuit, a communication interface circuit, and a 10.1-inch display screen.

[0061] The power conversion circuit converts a DC source from one voltage level to another, taking the DC input voltage as input and outputting different DC voltages. The power conversion circuit adopts a dedicated isolation design for the rail transit industry. The front stage of the conversion circuit has reverse connection protection and surge protection circuits. The power conversion circuit outputs 24V / 12V power to power the high-voltage connector monitoring host. The power conversion circuit is suitable for special application scenarios in the railway industry, such as wide voltage range, high harmonics, and high interference.

[0062] The M1808 is based on Rockchip's RK1808 AIoT processor. This CPU uses a 1.6GHz dual-core 64-bit Arm® Cortex®-A35 architecture, with a peak NPU computing power of up to 3.0 TOPs. It supports mixed INT8 / INT16 / FP16 operations, maximizing the balance between performance, power consumption, and computational accuracy. It also boasts strong compatibility with network model conversion across frameworks such as TensorFlow / MXNet / PyTorch / Caffe. The video processing unit supports 1080P video encoding and decoding, microphone arrays, and hardware VAD functionality. It supports low-power far-field wake-up and camera video signal input, and has a built-in ISP.

[0063] The M1808 features a rich set of peripheral interfaces for easy application expansion. Video input supports MIPI / CIF / BT1120 and MIPI / RGB display output; it has a range of sensor input / output interfaces including PWM / I2C / SPI / UART; high-speed device interfaces such as USB 3.0 / USB 2.0 / PCIE are available, supporting Gigabit Ethernet and external Wi-Fi / BT modules; audio input supports microphone array input, and audio output is also supported.

[0064] The storage interface circuit supports high-capacity SD cards for storing important information such as alarms and warnings, and supports viewing and exporting historical records. The export USB interface supports hot-swapping and allows exporting historical alarm and warning records stored internally by the host computer. Data is exported to the backend for further data analysis. The circuit design incorporates electrostatic discharge (ESD) protection.

[0065] The display driver circuit is a key part of controlling the operation of the display screen. It is mainly responsible for converting the input electrical signals into image or text information that the display screen can recognize, and driving the display screen to display the corresponding image or text.

[0066] An I / O level converter, also known as an input / output level converter, is typically used in the signal input / output interface circuits of a chip. Its main functions are to perform level conversion, improve drive capability, and provide ESD (electrostatic discharge) protection. Level conversion is a core function of the I / O converter. When the high / low levels of the internal circuit signals of the chip are inconsistent with external requirements, the I / O circuit can achieve level conversion. The I / O converter input has short-circuit protection and overcurrent protection functions. This circuit can be used as both an output and an input. The output circuit uses the MCU's output level to control the BTS5215L chip's switch, driving the chip's high-side output. The BTS5215L chip has two simultaneous outputs, supporting a maximum load of 3A per channel, and features current feedback, overcurrent protection, and short-circuit protection. The feedback signal is output to the MCU's analog sampling circuit via ST1 and ST2. In case of an abnormal situation, the system automatically shuts off the output to protect the system. The input circuit automatically closes the output port when used as an input. The signal is ultimately input into the system via IN193, a voltage divider circuit, a clamping circuit, and a filtering circuit, and is compatible with both digital and analog inputs.

[0067] The debugging interface circuit is used for communication and debugging of the high-voltage connector monitoring host. It is used for development, testing, and software maintenance upgrades, enabling technicians to interact with the monitoring host to view equipment status, modify monitoring host settings, and perform other functions. The debugging interface circuit uses a CAN debugging interface for external serial communication.

[0068] The communication interface circuit is the part of the high-voltage connector monitoring host used for data communication. Its main function is to transmit data from one monitoring host to another, or from a monitoring host to an external network. The design and implementation of the communication interface circuit depends on the communication protocol and method used. The high-voltage connector monitoring host communication interface circuit uses industrial Ethernet communication and mainly includes an Ethernet PHY chip (LAN8720), a network transformer, and an RJ45 interface. It adopts a simplified 4-wire interface, uses a standard M12 connector externally for convenient field operation, supports 100 Mbps networks, and can support LAN bridging and other functions.

[0069] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or variations without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A coupling and multiple-unit system for electric locomotives based on high-voltage electrical connectors, characterized in that, It consists of a set of high-voltage connectors and a management host; the set of high-voltage connectors includes two mutually cooperating high-voltage connectors, and the two high-voltage connectors are respectively installed on two electric locomotives used for coupling and reconnection; the high-voltage connectors include a mounting base (1) fixed on the electric locomotive and connected to the management host through a connecting cable, and a front frame (2) is provided at the front end of the mounting base (1); a contact module (3) is provided inside the front frame (2), and the contact module (3) includes a high-voltage contact module (31) for realizing the current transmission in the electric locomotive workshop and a control contact module (32) for realizing the signal transmission in the electric locomotive workshop.

2. The electric locomotive coupling and multiple-unit system based on a high-voltage electrical connector according to claim 1, characterized in that, A 720-degree sway head assembly (4) is provided between the mounting base (1) and the front frame (2); the 720-degree sway head assembly (4) includes connecting plates (41) respectively fixedly mounted on the mounting base (1) and the front frame (2), a spring skeleton (42) is provided between the two connecting plates (41), and a rubber stack (43) is provided on the outside of the spring skeleton (42).

3. The electric locomotive coupling and multiple-unit system based on a high-voltage electrical connector according to claim 1, characterized in that, The front frame (2) is provided with a front protection module (5); the front protection module (5) includes a front protection cover (51) provided in front of the high voltage contact module (31) and the control contact module (32); the front protection cover (51) is provided with an opening and closing mechanism (52) in front of the high voltage contact module (31) and the control contact module (32).

4. The electric locomotive coupling and multiple-unit system based on a high-voltage electrical connector according to claim 3, characterized in that, A bellows cover (53) is provided between the side of the front protective cover (51) and the front end of the front frame (2), and a sealing strip (54) is provided between the front protective cover (51) and the bellows cover (53).

5. A coupling and multiple-unit system for electric locomotives based on a high-voltage electrical connector according to claim 4, characterized in that, The front frame (2) is also provided with a self-locking module (6), which is an electromagnet structure controlled by the host computer; the front end of the self-locking module (6) is located outside the front protective cover (51).

6. The electric locomotive coupling and multiple-unit system based on a high-voltage electrical connector according to claim 1, characterized in that, The front side of the front frame (2) is provided with a source-finding guide module (7); the source-finding guide module (7) includes guide posts (71) and cone hole positioning seats (72) respectively provided on both sides of the front frame (2), and the guide posts (71) and cone hole positioning seats (72) cooperate with each other.

7. The electric locomotive coupling and multiple-unit system based on a high-voltage electrical connector according to claim 1, characterized in that, A compression spring is provided between the front and rear contacts of the contact module (3), and it is a cage-type spring-loaded socket structure; the front and rear contacts are provided with insulation protection on their outer sides.

8. A coupling and multiple-unit system for electric locomotives based on a high-voltage electrical connector according to claim 1, characterized in that, The front frame (2) is also equipped with a monitoring module (8), which is an integrated sensor module for collecting data on running time parameters, humidity parameters, temperature parameters and high voltage connector contact pressure parameters.

9. A coupling and multiple-unit system for electric locomotives based on a high-voltage electrical connector according to claim 8, characterized in that, The management host includes a power conversion circuit, an M1808 chip core board, an RTC clock circuit, a storage interface circuit, a display driver circuit, an I / O conversion circuit, a debug interface circuit, a communication interface circuit, and a display screen. The M1808 chip core board is connected to a power source through the power conversion circuit. The M1808 chip core board is also connected to the RTC clock circuit, the storage interface circuit, the display driver circuit, the I / O conversion circuit, the debug interface circuit, and the communication interface circuit. The M1808 chip core board is connected to a display screen through the display driver circuit.

10. A coupling and multiple-unit system for electric locomotives based on a high-voltage electrical connector according to claim 9, characterized in that, The management host and the monitoring module (8) are connected in a chain network via a CAN channel; the power conversion circuit outputs 24V / 12V power to power the high-voltage connector monitoring host.

Images