Buried charging gun line automatic storage system

Abstract

The invention relates to the technical field of electric vehicle charging equipment, and discloses a buried automatic charging gun wire storage system, which is characterized in that an intelligent control unit is arranged as a master controller, and is combined with a gun wire storage unit and a gun wire dismounting unit to realize efficient and reliable automatic gun wire storage. The real-time tension of the charging gun wire is detected based on the first sensor, and the specification information of the charging gun wire is detected based on the second sensor, so that the intelligent control unit can judge the current gun wire storage scene in real time based on the real-time tension and the specification information, and the running state of the motor module is adaptively adjusted; compared with the prior art, the charging gun line storage method has the advantages that the storage path of the charging gun line is planned according to the real-time tension and specification information of the charging gun line, so that the real-time storage efficiency of the charging gun line can be improved, the compatibility of gun line storage scenes can be improved, and the charging gun line storage efficiency can be improved. And diversified gun line storage requirements in different scenes are further met.

Description

Technical Field

[0001] This invention relates to the field of electric vehicle charging equipment technology, and in particular to an automatic underground charging gun cable storage system. Background Technology

[0002] With the increasing popularity of electric vehicles, underground charging cable storage devices have become widely used due to their advantages such as space saving and aesthetic appeal. According to the national standard GB / T18487.1-2023 "Electric Vehicle Conductive Charging System Part 1: General Requirements," charging cable lengths exceeding 7.5m must be equipped with a cable storage device to prevent cable dragging, wear, and safety hazards. Currently, most charging cable storage devices employ mechanical structures, resulting in high failure rates. Furthermore, they are limited to specific application scenarios, only suitable for storage in one or a few simple natural environments, thus lacking compatibility and failing to adequately meet diverse charging cable storage needs. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes an underground automatic charging cable storage system, which can improve the compatibility of cable storage scenarios and meet the diverse cable storage needs of different scenarios.

[0004] This invention provides an automatic underground charging gun cable storage system, comprising:

[0005] The charging cable storage unit includes a first sensor for detecting the real-time tension of the charging cable, a spiral guide mechanism for guiding the charging cable to retract and extend, and a motor module for providing power to the spiral guide mechanism. The first sensor is connected to the charging cable, and the spiral guide mechanism is connected to the motor module.

[0006] The charging cable removal unit includes a second sensor for detecting the specification information of the charging cable, the second sensor being connected to the charging cable;

[0007] An intelligent control unit is connected to the first sensor, the motor module, and the second sensor respectively. The intelligent control unit is used to adjust the operating state of the motor module based on the real-time tension and specification information of the charging gun cable, so as to control the spiral guide mechanism to provide a suitable three-dimensional trajectory planning for the charging gun cable's storage movement.

[0008] Optionally, in one embodiment of the present invention, the charging cable disassembly unit further includes a magnetic electrical connector for generating a stable adsorption force and a mechanical trigger latch for pressing to trigger the unlocking and separation of the charging cable. The magnetic electrical connector is adsorbed and connected to the charging cable, and the mechanical trigger latch is integrated into the end of the charging cable.

[0009] Optionally, in one embodiment of the present invention, a self-cleaning drying chamber is further included. The self-cleaning drying chamber includes an underground storage compartment and an eddy current drying module, an electrostatic dust removal device, and a temperature and humidity sensor disposed within the underground storage compartment. The underground storage compartment is used to store and place the charging gun cable. The eddy current drying module is activated when the temperature and humidity sensor detects that the humidity in the underground storage compartment exceeds a preset humidity threshold. The electrostatic dust removal device is used to operate after the eddy current drying module is activated. The eddy current drying module, the electrostatic dust removal device, and the temperature and humidity sensor are all connected to the intelligent control unit.

[0010] Optionally, in one embodiment of the present invention, the self-cleaning drying chamber further includes a hydrophobic coated door for providing waterproof protection for the underground storage compartment, the hydrophobic coated door being movably connected to the underground storage compartment.

[0011] Optionally, in one embodiment of the invention, the outer edge of the magnetic electrical connector is covered with a waterproof plug terminal sealed with rubber.

[0012] Optionally, in one embodiment of the present invention, the spiral guide mechanism adopts a variable diameter screw design.

[0013] Optionally, in one embodiment of the present invention, the motor module is a servo motor.

[0014] Optionally, in one embodiment of the present invention, both the first sensor and the second sensor are Hall sensors.

[0015] This invention proposes an underground automatic charging cable retraction system. By setting up an intelligent control unit as the main controller, combined with a cable retraction unit and a cable disassembly unit, it achieves efficient and reliable automatic cable retraction. Specifically, based on the real-time tension of the charging cable detected by a first sensor and the specification information of the charging cable detected by a second sensor, the intelligent control unit can make real-time judgments on the current cable retraction scenario based on the acquired real-time tension and specification information. Based on the judgment results, it adaptively adjusts the operating state of the motor module, thereby controlling the spiral guide mechanism to provide a suitable three-dimensional trajectory planning for the cable retraction movement. This ensures that cable retraction is achieved more efficiently and intelligently. Compared with related existing technologies, adaptively planning the cable retraction path based on the real-time tension and specification information not only improves the real-time cable retraction efficiency and reduces potential safety hazards, but also enhances the compatibility of cable retraction scenarios, further meeting the diverse cable retraction needs of different scenarios. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an underground automatic charging gun cable storage system provided in an embodiment of the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of an underground automatic charging gun cable storage system provided in another embodiment of the present invention;

[0018] Figure 3 This is a schematic diagram illustrating the execution principle of an underground automatic charging gun cable storage system provided in an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0020] Figure 1 This is a schematic diagram of the structure of an underground automatic charging gun cable storage system provided in an embodiment of the present invention. Figure 1 As shown, the underground automatic charging gun cable storage system may include, but is not limited to:

[0021] The charging cable storage unit includes a first sensor for detecting the real-time tension of the charging cable, a spiral guide mechanism for guiding the charging cable to retract and extend, and a motor module for providing power to the spiral guide mechanism. The first sensor is connected to the charging cable, and the spiral guide mechanism is connected to the motor module.

[0022] The charging cable removal unit includes a second sensor for detecting the specifications of the charging cable. The second sensor is connected to the charging cable. It can be seen that, considering that the charging cable may be disassembled and replaced, the second sensor detects the specifications of the charging cable and can automatically identify the cable specifications and adapt the parameters to facilitate more reliable quick disassembly and intelligent identification of the charging cable, which is compatible with different models of charging cables and reduces spare parts inventory costs.

[0023] The intelligent control unit is connected to the first sensor, the motor module, and the second sensor. The intelligent control unit is used to adjust the operating state of the motor module based on the real-time tension and specification information of the charging gun cable, so as to control the spiral guide mechanism to provide a suitable three-dimensional trajectory planning for the charging gun cable's retraction movement. The specific composition and type of the intelligent control unit can be various and can be set by those skilled in the art according to the actual scenario. For example, it can be, but is not limited to, using a PLC control cabinet, a host computer, or a specific training model built based on an AI Agent. There are no restrictions here.

[0024] It can be seen that by setting an intelligent control unit as the main controller, combined with the charging cable storage unit and the charging cable disassembly unit, efficient and reliable automatic charging cable storage is achieved. In particular, based on the real-time tension of the charging cable detected by the first sensor and the specification information of the charging cable detected by the second sensor, the intelligent control unit can make real-time judgments on the current charging cable storage scenario based on the acquired real-time tension and specification information of the charging cable. Based on the judgment results, it adaptively adjusts the operating state of the motor module, and then controls the spiral guide mechanism to provide a suitable three-dimensional trajectory planning for the charging cable storage movement. This ensures that the charging cable storage can be achieved more efficiently and intelligently. Compared with related existing technologies, adaptive planning of the charging cable storage path based on the real-time tension and specification information of the charging cable not only improves the real-time storage efficiency of the charging cable and reduces potential safety hazards, but also improves the compatibility of the charging cable storage scenario, further meeting the diverse charging cable storage needs of different scenarios.

[0025] In one embodiment, the intelligent control unit may also be equipped with, but is not limited to, an LED status indicator module, a touch screen, etc., to implement status visualization and human interaction. For example, the LED status indicator module may be, but is not limited to, a ring-shaped LED status indicator strip, which can display the storage progress and the status of the retrieval cable in real time. The touch screen may be, but is not limited to, a 7-inch touch screen, which supports fault self-check prompts and improves the user's ease of operation.

[0026] In one embodiment, the spiral guide mechanism may, but is not limited to, adopt a variable diameter screw design. Its spiral groove parameters are adapted to the cable winding and unwinding requirements. When winding, the cable is arranged in an involute pattern to avoid tangling. In other words, the spiral guide mechanism with the variable diameter screw design, in conjunction with a servo motor, achieves three-dimensional trajectory planning of the cable through precise control. At the same time, it combines a built-in first sensor as a tension sensor to monitor the cable tension in real time, and then feeds back the monitored tension signal to the intelligent control unit in real time to automatically adjust the motor speed, prevent the cable from being damaged due to abnormal tension, and ensure smooth winding and unwinding. It can be understood that the involute arrangement design of the spiral guide avoids cable tangling and knotting, reduces the risk of tripping, and can also be equipped with an automatic retrieval function, which starts within 10 seconds after charging is completed to prevent the cable from being dragged and worn or run over by vehicles.

[0027] In one embodiment, the specific types and specifications of the motor module, the first sensor, and the second sensor can be set according to the actual application scenario, and there are no restrictions here. For example, the motor module can be, but is not limited to, a servo motor, and the first sensor and the second sensor can be, but are not limited to, Hall sensors, which have high accuracy and can stably monitor relevant data.

[0028] In one embodiment, the charging cable disconnection unit may also include, but is not limited to, a magnetic electrical connector for generating a stable magnetic force and a mechanical trigger latch for pressing to trigger the unlocking and separation of the charging cable. The magnetic electrical connector is magnetically connected to the charging cable, and the mechanical trigger latch is integrated into the end of the charging cable. Unlocking and separation are achieved by pressing to trigger the internal mechanical action. The operation is simple and prevents accidental contact. A single person can complete the hot-plugging in a short time, ensuring a stable connection of the charging cable.

[0029] In one embodiment, the outer edge of the magnetic electrical connector is covered with a waterproof plug terminal sealed with rubber. The combination of the magnetic electrical connector and the waterproof plug terminal allows the magnetic electrical connector to generate a stable attraction force with the help of a highly magnetic material, ensuring a tight connection. At the same time, the waterproof plug terminal is sealed with rubber to prevent water and dust from entering, thus balancing quick connection and reliable sealing.

[0030] In one embodiment, such as Figure 2 As shown, the underground automatic charging cable storage system may also include, but is not limited to, a self-cleaning drying chamber. The self-cleaning drying chamber includes an underground storage compartment and an eddy current drying module, an electrostatic dust removal device, and a temperature and humidity sensor installed inside the underground storage compartment. The underground storage compartment is used to store and place the charging cable. The eddy current drying module is activated when the temperature and humidity sensor detects that the humidity inside the underground storage compartment exceeds a preset humidity threshold. The electrostatic dust removal device is used after the eddy current drying module is activated. The eddy current drying module, the electrostatic dust removal device, and the temperature and humidity sensor are all connected to the intelligent control unit. It can be seen that the eddy current drying module in the underground storage compartment can generate eddy current airflow to quickly remove moisture from the cable, while the electrostatic dust removal device can use high-voltage electrostatic adsorption to adsorb dust, greatly reducing the amount of dust adhering. The two work together to complete the cleaning and drying of the cable.

[0031] It should be noted that the specific value of the preset humidity threshold can be set according to the actual scenario, and there is no restriction here.

[0032] In one embodiment, such as Figure 2 As shown, the self-cleaning drying chamber may also include, but is not limited to, a hydrophobic coated door for providing waterproof protection for the underground storage chamber. The hydrophobic coated door is movably connected to the underground storage chamber. The hydrophobic coated door may, but is not limited to, use a waterproof coating with a contact angle >150° to allow rainwater to slide off quickly, prevent infiltration, maintain a dry environment inside the chamber, and protect the gun line.

[0033] Specifically, the following example illustrates the process:

[0034] like Figure 3As shown, the entire charging cable storage system is initially in standby mode. When a user approaches, the operation intention detection is triggered, and the process begins. If the user pulls out the charging gun, the servo motor releases the cable according to a preset torque. The tension sensor, acting as the first sensor, monitors the cable tension value in real time. Once the cable is detected to be fully extended, the cable release mechanism is locked to facilitate the user's connection to the vehicle's charging port, and the system enters charging standby mode. Once charging is complete or the cable is detached from the vehicle, the tension sensor detects the disappearance of the load, and the intelligent control unit immediately triggers a retraction command. The servo motor drives the spiral guide mechanism to rewind the cable along an involute trajectory. After the cable enters the hydrophobic coated compartment, the hydrophobic coated compartment closes and seals.

[0035] After the wire enters the hydrophobic coated compartment, the temperature and humidity sensor integrated in the underground storage compartment continuously monitors the internal environment. If the internal humidity exceeds 60%RH, the eddy current drying module is activated. If the humidity reaches the standard, the electrostatic dust removal device works. After both complete the linkage operation, the entire system returns to standby mode to ensure that the compartment is dry and clean, which is conducive to the storage of the wire.

[0036] For cable replacement scenarios, after the user presses the mechanical trigger latch, the magnetic electrical connector is de-energized and disconnected, allowing the old cable to be removed and the new cable to be inserted. The specifications are identified by a Hall sensor, and the extension and retraction parameters are automatically calibrated to adapt to the characteristics of the new cable. After the update, the cable returns to standby mode, thus achieving "plug and play".

[0037] It can be seen that the entire process, from user operation to system automatic response, environmental adaptation, and gun wire maintenance, forms a complete closed loop with each link closely linked to ensure the efficient and intelligent operation of the device. In particular, the tension sensor is connected in series with the wire feeding and retrieval key links to accurately reflect the status; the spiral guide mechanism relies on the involute trajectory to ensure orderly winding; the magnetic and mechanical locking structure allows for efficient connection between quick release and intelligent recognition; and the temperature and humidity sensor adapts to the driving environment to build a complete working cycle, covering user operation and system automatic response, fully demonstrating the intelligent, convenient, and reliable design logic.

[0038] Through the inventor's actual testing, the overall structure has reached the IP67 protection level. With an operating temperature range of -30℃ to 65℃ and a positive pressure dustproof system, it can operate stably in rainy, dusty, high-temperature or extremely cold areas. It is suitable for various scenarios such as community parking lots, highway service areas, and outdoor charging stations, solving the problem of poor environmental adaptability of traditional underground storage equipment.

[0039] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to 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 of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. An underground automatic charging gun cable storage system, characterized in that, include: The charging cable storage unit includes a first sensor for detecting the real-time tension of the charging cable, a spiral guide mechanism for guiding the charging cable to retract and extend, and a motor module for providing power to the spiral guide mechanism. The first sensor is connected to the charging cable, and the spiral guide mechanism is connected to the motor module. The charging cable removal unit includes a second sensor for detecting the specification information of the charging cable, the second sensor being connected to the charging cable; An intelligent control unit is connected to the first sensor, the motor module, and the second sensor respectively. The intelligent control unit is used to adjust the operating state of the motor module based on the real-time tension and specification information of the charging gun cable, so as to control the spiral guide mechanism to provide a suitable three-dimensional trajectory planning for the charging gun cable's storage movement.

2. The underground automatic charging gun cable storage system according to claim 1, characterized in that, The charging cable disassembly unit also includes a magnetic electrical connector for generating a stable attraction force and a mechanical trigger latch for pressing to trigger the charging cable to unlock and separate. The magnetic electrical connector is magnetically connected to the charging cable, and the mechanical trigger latch is integrated into the end of the charging cable.

3. The underground automatic charging gun cable storage system according to claim 1, characterized in that, It also includes a self-cleaning drying chamber, which includes an underground storage compartment and an eddy current drying module, an electrostatic dust removal device, and a temperature and humidity sensor disposed within the underground storage compartment. The underground storage compartment is used to store the charging gun cable. The eddy current drying module is activated when the temperature and humidity sensor detects that the humidity in the underground storage compartment exceeds a preset humidity threshold. The electrostatic dust removal device is used to operate after the eddy current drying module is activated. The eddy current drying module, the electrostatic dust removal device, and the temperature and humidity sensor are all connected to the intelligent control unit.

4. The underground automatic charging gun cable storage system according to claim 3, characterized in that, The self-cleaning and drying chamber also includes a hydrophobic coated door for providing waterproof protection for the underground storage compartment, and the hydrophobic coated door is movably connected to the underground storage compartment.

5. The underground automatic charging gun cable storage system according to claim 2, characterized in that, The outer edge of the magnetic electrical connector is covered with a waterproof plug terminal sealed with rubber.

6. The underground automatic charging gun cable storage system according to claim 1, characterized in that, The spiral guide mechanism adopts a variable diameter screw design.

7. The underground automatic charging gun cable storage system according to claim 1, characterized in that, The motor module uses a servo motor.

8. The underground automatic charging gun cable storage system according to claim 1, characterized in that, Both the first sensor and the second sensor are Hall sensors.

Images