Automobile charging pile pin assembly with self-locking structure

Abstract

The utility model discloses an automobile charging pile pin assembly with a self-locking structure, and relates to the technical field of automobile charging, in particular to the automobile charging pile pin assembly with the self-locking structure. Comprising a main body, a handle, a microcontroller, a buckle, an electromagnet, an LED lamp, a photoelectric sensor, a guide mechanism, an infrared sensor and a pressure sensor. According to the utility model, the photoelectric sensor, the pressure sensor, the microcontroller and the LED lamp are integrated, so that the function of the self-locking detection system is realized, and the insertion accuracy and real-time feedback of the pin are ensured. And the mechanical buckle is combined with the electromagnet to form a dual self-locking mechanism, so that powerful locking and power-off protection are provided, and the pin is ensured not to be loosened. Through the combination of the infrared sensor, the microcontroller and the guide mechanism, the automatic alignment auxiliary function is realized, the user operation is simplified, the charging efficiency is improved, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle charging, and particularly to a vehicle charging pile pin assembly with a self-locking structure. Background Art

[0002] With the popularization of electric vehicles, as an important supporting facility for electric vehicles, the demand for charging piles is also increasing rapidly. The safety and reliability of charging piles directly affect the charging efficiency of electric vehicles and the user experience. In the prior art, the pin assembly of a charging pile usually only has basic mechanical connection functions, and cannot realize real-time monitoring of the insertion state of the pins and automatic alignment. Moreover, during the charging process, the pins are prone to loosening or improper insertion, resulting in reduced charging efficiency or charging interruption, and even may cause safety accidents. An existing self-locking device for a new energy vehicle charging pile (publication number: CN110843563A) has the following drawbacks and needs further improvement.

[0003] Traditional devices rely on mechanical contact to determine whether the pins are correctly inserted, lacking an accurate feedback mechanism and unable to ensure whether the pins are fully inserted during the insertion process. This design makes it impossible for users to confirm whether the pins are correctly inserted when inserting the pins. When operating at night or in a low visibility environment, it is easy to have the situation that the pins are not fully inserted or inserted into the wrong position, resulting in a decrease in charging efficiency and posing safety hazards such as electric arcs and overheating caused by poor contact of the pins. In addition, traditional devices lack the function of detecting the pin pressure, so that when the pins are not fully inserted but still can be partially conducted, users mistakenly think that the charging is proceeding normally, which is likely to cause poor contact, charging interruption or equipment damage. Therefore, there is an urgent need for a charging pile pin assembly with a self-locking detection system function.

[0004] Traditional devices adopt a single mechanical locking mechanism, relying on simple buckle or spring devices to fix the pins. The single mechanical locking mechanism is easily affected by wear and aging. After long-term use, the reliability of the locking device will gradually decrease, resulting in the pins being prone to loosening or falling off. In addition, when the pins encounter external impact or vibration during the insertion process, the single mechanical locking mechanism cannot provide sufficient locking force, and the pins will become loose, causing charging interruption and even safety accidents. The traditional mechanical locking mechanism cannot maintain the locked state in the case of power failure. Once the charging pile loses power, the pins will fall off due to the loss of locking force, resulting in problems such as power interruption and data loss. Therefore, there is an urgent need for a charging pile pin assembly with a dual self-locking mechanism function.

[0005] Traditional devices require continuous adjustment of the angle and position of the pins to ensure accurate insertion into the socket. This manual alignment method is time-consuming and laborious. In an environment with insufficient light at night, it is difficult for users to accurately align the pins and the socket, resulting in incorrect insertion or failure to insert the pins. In addition, for some elderly or physically inconvenient users, the process of manually aligning the pins is even more difficult, affecting the user experience and charging efficiency. The lack of an automatic alignment function in traditional devices causes users to repeatedly try during the pin insertion process, damaging the pins and the socket and shortening the service life of the device. Incorrect alignment of the pins leads to poor contact between the pins and the socket, resulting in unstable current, slow charging speed, and even electric sparks and device damage, seriously affecting charging safety and reliability. Therefore, there is an urgent need for a charging pile pin component with an automatic alignment assistance function. Summary of the Invention

[0006] The main purpose of the present utility model is to provide an automotive charging pile pin component with a self-locking structure, which can effectively solve the problems in the background technology.

[0007] To achieve the above object, the technical solution adopted by the present utility model is: there is an automotive charging pile pin component with a self-locking structure. A handle is installed behind the main body, a microcontroller is installed above the main body, a buckle is installed inside the main body, an electromagnet is installed inside the main body, an LED lamp is installed outside the main body, a photoelectric sensor is installed outside the main body, a guiding mechanism is installed below the main body, an infrared sensor is installed inside the main body, and a pressure sensor is installed inside the main body.

[0008] Preferably, the outside of the main body adopts a rounded corner design.

[0009] Preferably, the buckle adopts a bidirectional symmetric design.

[0010] Preferably, the guiding mechanism adopts a rope-like structure.

[0011] Preferably, the photoelectric sensor adopts a modular design.

[0012] Preferably, the microcontroller is fixed to the main body by bolts.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] The present utility model can have the following advantages by adding a photoelectric sensor, a pressure sensor, a microcontroller, and an LED lamp. The introduction of the photoelectric sensor enables precise detection of the position of the pin during insertion through optical means. When the pin is inserted in place, the photoelectric sensor is triggered and sends a signal to the microcontroller. This real-time monitoring method ensures the accuracy of the pin insertion process, and the user can immediately understand whether the pin is correctly inserted and locked through the intuitive LED lamp feedback. In a night or low visibility environment, the prompting function of the LED lamp is particularly important, avoiding pin insertion errors caused by poor visibility of the user. The application of the pressure sensor further enhances the reliability of the pin insertion process. It can detect the insertion force of the pin in real time to ensure that the pin is correctly locked after reaching an appropriate pressure. As the core of the system, the microcontroller is responsible for collecting data from the photoelectric sensor and the pressure sensor, and performing real-time analysis and processing. When it is detected that the pin is correctly inserted and locked, the microcontroller controls the LED lamp to display green, otherwise it displays red, clearly and intuitively indicating the status of the pin.

[0015] The present utility model can have the following advantages by adding a buckle and an electromagnet. When the pin is inserted in place, the mechanical buckle automatically locks, providing preliminary fixing protection. The buckle structure is simple and has strong anti-wear ability, and can maintain good locking performance even during long-term use. However, the buckle can only provide limited locking force and has limited resistance to external impact or vibration. The introduction of the electromagnet makes up for this deficiency. The electromagnet is energized after the pin is inserted in place, generating a strong magnetic force to attract the pin and achieve secondary locking. This electromagnetic locking method provides a stronger locking force than the mechanical buckle, and can effectively resist external impact and vibration, ensuring that the pin will not loosen or fall off under any circumstances. In addition, the dual self-locking mechanism also considers the locking problem in the case of power failure. Even when the charging pile is powered off, the buckle can still provide basic locking protection to prevent the pin from falling off.

[0016] The utility model has the following advantages by adding an infrared sensor, a microcontroller and a guiding mechanism. The infrared sensor can detect the alignment of the pin and the socket, and judge the position and angle of the pin by emitting infrared light and receiving the reflected light. When the position of the pin is incorrect, the infrared sensor transmits the data to the microcontroller. After analysis by the microcontroller, the guiding mechanism is controlled to make adjustments. The guiding mechanism is composed of a micro electric push rod, and can automatically adjust the position and angle of the pin according to the instructions of the microcontroller to ensure that it can be accurately aligned with the socket. This automatic alignment function simplifies the operation steps of the user. In the case of insufficient light or inconvenient operation, the user does not need to repeatedly try to insert the pin. Just roughly align the pin with the socket, and the system will automatically complete the precise alignment. It improves the charging efficiency and reduces problems such as incorrect insertion and poor contact of the pin caused by inaccurate manual alignment. In addition, the automatic alignment function helps to protect the pin and the socket, avoids wear and damage caused by multiple pluggings and unpluggings, and extends the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 is a detailed view of part A of the utility model;

[0019] Figure 3 is a front view of the overall structure of the utility model.

[0020] In the figure: 1, main body; 2, handle; 3, microcontroller; 4, buckle; 5, electromagnet; 6, LED lamp; 7, photoelectric sensor; 8, guiding mechanism; 9, infrared sensor; 10, pressure sensor. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the utility model easy to understand, the utility model will be further described below in conjunction with the specific embodiments.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0024] See also Figures 1 - 3 , the utility model provides a technical solution:

[0025] A car charging pile plug assembly with a self-locking structure, wherein a handle 2 is installed at the rear of the main body 1, a microcontroller 3 is installed above the main body 1, a buckle 4 is installed inside the main body 1, an electromagnet 5 is installed inside the main body 1, an LED lamp 6 is installed outside the main body 1, a photoelectric sensor 7 is installed outside the main body 1, a guide mechanism 8 is installed below the main body 1, an infrared sensor 9 is installed inside the main body 1, and a pressure sensor 10 is installed inside the main body 1.

[0026] 1. Subject:

[0027] The main body is the core structure of the entire charging pile plug assembly and is made of metal material. The main body contains various electronic components and mechanical structures, providing space for the plug to be inserted and locked. The design of the main body must take into account factors such as waterproofing, dustproofing, and heat dissipation to ensure stable operation under various environmental conditions. In addition, the main body must also have a certain structural strength to withstand the repeated operation of inserting and removing the plug.

[0028] 2.Handle:

[0029] The handle is a key component for users to operate the pin and is set on the pin housing. The handle design must be ergonomic, provide a comfortable grip and easy operation. The handle material must have a non-slip function to ensure a firm grip even with wet hands or wearing gloves. The handle also has a certain insulation performance to prevent the risk of electric shock during operation.

[0030] 3. Microcontroller:

[0031] The microcontroller is the intelligent control core of the charging pile plug assembly, responsible for processing data from various sensors and controlling the work of other electronic components. The microcontroller uses high-performance chips such as STM32, and realizes complex logic control and real-time data processing through programming. The microcontroller is installed inside the main body and connected with various sensors, LED lights, electromagnets and other components to form a complete control system.

[0032] 4. Snap Fastener:

[0033] The snap fastener is a key component for mechanical locking and is made of high-strength spring. The snap fastener is designed to automatically pop up and lock the pin when the pin is inserted in place, providing an initial fixing force. The position of the snap fastener is usually on the side or bottom of the pin and is used in conjunction with the locking groove in the socket. The design of the snap fastener needs to ensure that it can still maintain good elasticity and locking performance after multiple uses.

[0034] 5. Electromagnet:

[0035] The electromagnet is used to achieve secondary locking of the pin and provides a stronger locking force. The electromagnet is installed inside the socket. After the pin is inserted in place, the electromagnet is energized to generate a magnetic force, firmly adsorbing the pin inside the socket. The electromagnet needs to have sufficient adsorption force to resist external impact and vibration, ensuring that the pin will not become loose under any circumstances. In addition, the control circuit of the electromagnet needs to have a power-off protection function to ensure that the mechanical snap fastener can still maintain a basic locking force when powered off.

[0036] 6. LED Light:

[0037] The LED light is used to indicate the insertion state and working state of the pin, providing intuitive visual feedback. The LED light is usually installed in a conspicuous position on the main body or the socket, and different colored lights are used to prompt the user of the current state. The LED light is controlled by a microcontroller. When it detects that the pin is correctly inserted and locked, the microcontroller will light up the corresponding indicator light.

[0038] 7. Photoelectric Sensor:

[0039] The photoelectric sensor is used to detect whether the pin is correctly inserted into the socket, providing accurate feedback on the insertion position. The photoelectric sensor is usually installed inside the socket, close to the position where the pin is inserted. The photoelectric sensor transmits and receives light signals. When the pin is inserted in place, the optical path of the photoelectric sensor is blocked, and a signal is triggered and transmitted to the microcontroller. The photoelectric sensor needs to have high sensitivity and high reliability to ensure accurate detection of the pin position under various environmental conditions.

[0040] 8. Guiding Mechanism:

[0041] The guiding mechanism is used to provide automatic alignment assistance during the pin insertion process to ensure that the pin can be accurately aligned with the socket. The guiding mechanism consists of a micro electric push rod or a guiding groove and is installed inside or around the socket. The guiding mechanism is controlled by a microcontroller and automatically adjusts the position and angle of the pin according to the data of the infrared sensor. The guiding mechanism needs to have the ability of fast response and precise control to achieve efficient automatic alignment.

[0042] 9. Infrared Sensor:

[0043] An infrared sensor is used to detect the alignment of the pin and the socket, providing position and angle feedback. The infrared sensor is installed inside or around the socket and determines the position of the pin by emitting infrared light and receiving the reflected light. When the position of the pin is incorrect, the infrared sensor transmits the data to the microcontroller, which, after analysis, controls the guiding mechanism to make adjustments. The infrared sensor needs to have high precision and high sensitivity to ensure the accuracy of alignment detection.

[0044] 10. Pressure sensor:

[0045] The pressure sensor is used to detect the pressure when the pin is inserted, ensuring that the pin is correctly locked under appropriate pressure. The pressure sensor is installed inside the socket or at the bottom of the pin. By sensing the insertion force of the pin, the signal is transmitted to the microcontroller. Based on the data from the pressure sensor, the microcontroller determines whether the pin is inserted in place and locked. The pressure sensor needs to have high precision and high reliability to ensure accurate pressure detection under various insertion force conditions.

[0046] 1. Specific technical implementation methods of the self-locking detection system

[0047] The self-locking detection system of the present utility model forms a complete intelligent detection and feedback system by integrating an optoelectronic sensor, a pressure sensor, a microcontroller, and an LED light. The optoelectronic sensor is installed inside the socket, close to the position where the pin is inserted. When the pin is inserted in place, the optoelectronic sensor detects the position of the pin by emitting and receiving optical signals. If the optical path is blocked by the pin, the optoelectronic sensor immediately sends a signal to the microcontroller, indicating that the pin has been inserted in place. At the same time, the pressure sensor installed inside the socket or at the bottom of the pin is responsible for detecting the pressure when the pin is inserted. The pressure sensor can sense the insertion force of the pin and transmit the data to the microcontroller in real time. By analyzing the data from the optoelectronic sensor and the pressure sensor in real time, the microcontroller can accurately determine whether the pin is correctly inserted and locked. If the pin reaches the appropriate pressure and is inserted in place, the microcontroller controls the LED light to display green, prompting the user that the pin has been correctly inserted. If the pin is not fully inserted or the pressure is insufficient, the LED light displays red, reminding the user to insert it again. In this way, the user can quickly understand the state of the pin through the intuitive LED light feedback, avoiding charging failures and safety hazards caused by incorrect pin insertion. Especially in the dark or low visibility environment, the prompting function of the LED light is particularly important, ensuring that the user can operate correctly and improving the safety and reliability of the entire charging process.

[0048] 2. Specific technical implementation methods of the dual self-locking mechanism

[0049] The dual self-locking mechanism of the present utility model provides multi-level locking protection through the combination of a mechanical buckle and an electromagnet. The mechanical buckle is installed at the locking position of the pin or socket. When the pin is inserted in place, the buckle will automatically pop out and catch the pin, providing an initial fixing force. This mechanical locking method has a simple structure and strong anti-wear ability, and can maintain good locking performance during long-term use. However, the mechanical buckle can only provide limited locking force and cannot completely resist external force impacts or vibrations. To supplement this deficiency, an electromagnet is introduced as a secondary locking device. The electromagnet is installed inside the socket. After the pin is inserted in place, the electromagnet is energized to generate a strong magnetic force, firmly adsorbing the pin inside the socket to achieve a stronger locking force. The electromagnetic locking method can effectively resist external force impacts and vibrations, ensuring that the pin will not loosen or fall off under any circumstances. In addition, the dual self-locking mechanism also considers the locking problem in the case of power failure. Even when the charging pile is powered off, the mechanical buckle can still provide basic locking protection to prevent the pin from falling off. The control circuit of the electromagnet needs to have a power-off protection function to ensure that the electromagnet can be quickly released when powered off, but the mechanical buckle still remains locked. In this way, the dual self-locking mechanism not only provides a stronger locking force and anti-interference ability, but also ensures the safety and reliability of the system in extreme cases, avoiding problems such as charging interruption, power interruption, and data loss caused by the loosening of the pin.

[0050] 3. Specific technical implementation methods of the automatic alignment assistance function

[0051] The automatic alignment assistance function of this utility model realizes the intelligent alignment of the pin by integrating an infrared sensor, a microcontroller, and a guiding mechanism. The infrared sensor is installed inside or around the socket and detects the position and angle of the pin by emitting infrared light and receiving the reflected light. When the pin is not properly positioned or not aligned with the socket, the infrared sensor transmits the detected data to the microcontroller. After receiving the data, the microcontroller analyzes the alignment of the pin and the socket through built-in algorithms and calculates the required adjustment amount in real time. The guiding mechanism consists of a micro electric push rod and can automatically adjust the position and angle of the pin according to the instructions of the microcontroller to ensure that it can be accurately aligned with the socket. The microcontroller controls the action of the guiding mechanism to automatically adjust the pin to the optimal position during insertion. This automatic alignment function simplifies the user's operation steps. Especially in the case of insufficient light or inconvenient operation, the user does not need to repeatedly try to insert the pin. Just roughly align the pin with the socket, and the system will automatically complete the precise alignment. The design of the guiding mechanism needs to have the ability of quick response and precise control to ensure that the pin is aligned within a short time and improve the charging efficiency. In addition, the automatic alignment function can also reduce problems such as incorrect pin insertion and poor contact caused by inaccurate manual alignment, protect the pin and the socket, avoid wear and damage caused by multiple pluggings and unpluggings, and extend the service life of the device. Overall, the automatic alignment assistance function not only improves the user experience and charging convenience but also ensures the safety and reliability of the charging process, further promoting the intelligent development of charging pile technology.

[0052] 1. Pin insertion detection:

[0053] a) The user inserts the pin into the charging pile socket.

[0054] b) The optoelectronic sensor detects the position of the pin. When the pin is inserted in place, the optical path is blocked, the sensor is triggered and sends a signal to the microcontroller.

[0055] c) At the same time, the pressure sensor detects the insertion force of the pin to ensure that the pin reaches an appropriate pressure.

[0056] 2. Self-locking detection and feedback:

[0057] a) The microcontroller receives the data from the optoelectronic sensor and the pressure sensor and performs real-time analysis.

[0058] b) If the pin is correctly inserted and locked, the microcontroller controls the LED light to display green; if the pin is not fully inserted or the pressure is insufficient, the LED light displays red.

[0059] 3. Activation of the dual self-locking mechanism:

[0060] a) After the pin is inserted in place, the mechanical buckle automatically pops out and catches the pin to achieve preliminary locking.

[0061] b) When the electromagnet is powered on, it generates a strong magnetic force to attract the pin, providing a stronger locking force to ensure that the pin does not loosen.

[0062] 4. Automatic alignment assistance:

[0063] a) The infrared sensor detects the alignment of the pin and the socket.

[0064] b) If the pin is not in the correct position, the infrared sensor transmits the data to the microcontroller.

[0065] c) After analyzing the data, the microcontroller controls the guiding mechanism (micro electric push rod) to automatically adjust the position of the pin to ensure that the pin is accurately aligned with the socket.

[0066] 5. Charging process monitoring:

[0067] a) During the entire charging process, the microcontroller continuously monitors the data of the photoelectric sensor and the pressure sensor to ensure that the pin remains in the correct inserted state.

[0068] b) The LED light continuously provides visual feedback on the status of the pin.

[0069] 6. Charging end and unplugging:

[0070] a) When the charging is completed, the user pulls out the pin according to the prompt.

[0071] b) When the electromagnet is powered off, the mechanical buckle releases the pin, and the user can smoothly pull out the pin.

[0072] I. Equipment Introduction

[0073] This equipment is a pin component of an automotive charging pile with a self-locking structure, equipped with self-locking detection, double self-locking, and automatic alignment assistance functions, improving the safety of charging and the user experience.

[0074] II. Usage Steps

[0075] 1. Pin insertion:

[0076] a) Align the pin with the charging pile socket.

[0077] b) Insert the pin to ensure that the pin is fully inserted into the socket.

[0078] 2. Status check:

[0079] a) Observe the color indication of the LED light.

[0080] b) When the green light is on, it means the pin is correctly inserted and locked; when the red light is on, it means the pin is not correctly inserted, please re-insert it.

[0081] 3. Charging process:

[0082] a) After the pin is correctly inserted, charging starts automatically.

[0083] b) During charging, avoid pulling out the pin or performing violent operations.

[0084] 4. Charging End:

[0085] a) After charging is completed, press the unlock button on the charging pile or perform an unlock operation on the operation interface.

[0086] b) Confirm that the LED light turns red or goes out, indicating that the pin is unlocked.

[0087] c) Gently pull out the pin.

[0088] 5. Maintenance and Upkeep:

[0089] a) Regularly check the cleanliness of the pin and socket to prevent dust and foreign objects from entering.

[0090] b) Check the working status of the mechanical buckle and electromagnet to ensure their normal functions.

[0091] c) If the device malfunctions, please contact a professional for repair in a timely manner.

[0092] III. Precautions

[0093] 1. Safe Operation:

[0094] a) During operation, do not touch the metal part of the pin to avoid the risk of electric shock.

[0095] b) Keep your hands dry when inserting or removing the pin.

[0096] 2. Environmental Requirements:

[0097] a) Avoid using the device in extreme environments.

[0098] b) Ensure that there are no flammable or explosive items around the charging pile.

[0099] 3. Fault Handling:

[0100] a) If the LED light shows red for a long time, check whether the pin is correctly inserted.

[0101] b) If the device cannot be unlocked or has other faults, immediately stop using it and contact a professional repairman.

[0102] The following are the parameters of this utility model:

[0103] Parameter Name Technical Specification Microcontroller Type STM32 or Arduino Mechanical Snap Material Spring Steel or Engineering Plastic Electromagnet Locking Force ≥100N Guide Mechanism Type Miniature Electric Push Rod Power Supply Voltage 220VAC Operating Temperature Range -20°C to 60°C Protection Grade IP65 Maximum Charging Power 22kW Pin Material Copper Alloy

[0104] The foregoing has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A car charging pile plug assembly with a self-locking structure, comprising a main body (1), characterized in that: A handle (2) is installed at the rear of the main body (1), a microcontroller (3) is installed above the main body (1), a buckle (4) is installed inside the main body (1), an electromagnet (5) is installed inside the main body (1), an LED light (6) is installed outside the main body (1), a photoelectric sensor (7) is installed outside the main body (1), a guide mechanism (8) is installed below the main body (1), an infrared sensor (9) is installed inside the main body (1), and a pressure sensor (10) is installed inside the main body (1).

2. The automobile charging pile plug assembly with a self-locking structure according to claim 1 is characterized in that: The exterior of the main body (1) is designed with rounded corners.

3. The automobile charging pile plug assembly with a self-locking structure according to claim 1 is characterized in that: The buckle (4) adopts a bidirectional symmetrical design.

4. The automobile charging pile plug assembly with a self-locking structure according to claim 1 is characterized in that: The guide mechanism (8) adopts a rope-type structure.

5. The automobile charging pile plug assembly with a self-locking structure according to claim 1 is characterized in that: The photoelectric sensor (7) adopts a modular design.

6. The automobile charging pile plug assembly with a self-locking structure according to claim 1 is characterized in that: The microcontroller (3) is fixed to the main body (1) by means of bolts.

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