Charging pile and self-service cloud service charging pile

Abstract

The invention belongs to the technical field of charging piles, and particularly relates to a charging pile and a self-service cloud service charging pile, the charging pile comprises a box body, a charging module is mounted in the box body, a control screen is mounted at the front end of the box body, the charging module is electrically connected with a charging wire, the other end of the charging wire is connected with a charging gun, and a gun seat is mounted on one side of the box body. The charging gun can be inserted into the gun base, the tail end of the charging line is installed on the sliding rail mechanism, the displacement acquisition module is located on the sliding rail mechanism and used for detecting the dragging displacement of the charging gun, and the dragging force acquisition module is installed at the joint of the charging gun and the charging line and used for collecting the dragging force of the charging gun. And the dragging force applied to the charging gun can be detected in real time. In the invention, once the dragging event is detected, the execution mechanism is immediately started, and the charging gun and the automobile charging port are automatically separated, so that the damage of the charging pile and the automobile charging port caused by negligence of an automobile owner is effectively avoided, and the maintenance cost and the safety risk are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a charging pile and a self-service cloud service charging pile. Background Art

[0002] With the popularity of electric vehicles, the frequency of use of charging piles is increasing. In actual use, it is often the case that car owners forget to unplug the charging gun and drive away directly, which will cause the charging pile to be dragged.

[0003] Such incidents will not only damage the charging pile, such as the charging cable being pulled off, the charging gun being damaged, and the internal charging module connection parts being damaged, which will increase the maintenance cost and time and affect the normal operation of the charging pile; it may also damage the charging interface of the electric vehicle, affecting the charging function of the vehicle, and even causing safety hazards, such as short circuits and leakage. Existing charging piles lack effective technical means to prevent such dragging incidents, and it is difficult to take timely measures to avoid losses when the charging gun is dragged. Therefore, there is an urgent need for a new type of charging pile and self-service cloud service charging pile that can effectively prevent the occurrence of charging pile dragging incidents. Summary of the invention

[0004] Based on the technical problems existing in the prior art, the present invention proposes a charging pile and a self-service cloud service charging pile.

[0005] A charging pile and a self-service cloud service charging pile proposed in the present invention include a box body, a charging module is installed inside the box body, a control screen is installed at the front end of the box body, the charging module is electrically connected to a charging cable, the other end of the charging cable is connected to a charging gun, a gun seat is installed on one side of the box body, the charging gun can be inserted into the gun seat, and also includes a displacement acquisition module, a drag force acquisition module and a control module, the end of the charging cable is installed on a slide rail mechanism, the displacement acquisition module is located on the slide rail mechanism and is used to detect the displacement of the charging gun being dragged out in real time, the drag force acquisition module is installed at the connection between the charging gun and the charging cable, and is used to detect the drag force exerted on the charging gun in real time; the control The module is fixed on the inner wall of one side of the box; the car owner can charge the car by taking the charging gun out of the gun holder. When the car owner forgets to unplug the charging gun and drives away directly, the control module will receive the data collected by the displacement acquisition module and the drag force acquisition module in real time, and conduct a comprehensive analysis, and then generate an evaluation coefficient. By comparing the evaluation coefficient with the pre-set evaluation coefficient reference threshold, it is determined whether the charging gun is dragged, and the working state of the actuator is controlled according to the comparison result. If the charging gun is dragged, the actuator will start and automatically detach the charging gun from the car's charging port, thereby avoiding the occurrence of charging pile dragging incidents.

[0006] Preferably, the slide rail mechanism includes a slide rail fixed to one side of the box body close to the charging cable, a slider is slidably connected in the slide rail, the slider is sleeved on the charging cable, a spring is fixed to an inner wall of one side of the slider, the other end of the spring is fixed to an inner wall of one side corresponding to the slide rail, and the displacement acquisition module is fixed to an inner wall of one side of the slide rail; when the charging gun is dragged, the charging cable will drive the slider to overcome the elastic force of the spring and move along the slide rail, so that the displacement of the charging gun being dragged out can be better detected in real time through the displacement acquisition module, and during normal charging, the force applied by the owner when pulling the charging cable normally cannot overcome the elastic force of the spring, thereby ensuring that the position of the slider is relatively stable under normal circumstances.

[0007] Preferably, the control screen is provided with a fixing part located above the slider, and the fixing part includes two clamps that can just clamp the charging cable, and the two clamps are fixed together by a group of bolt fasteners; in this way, after adjusting the remaining length of the charging cable between the slider and the box body, the two clamps can be clamped onto the charging cable, and the two clamps can be fixed to the charging cable by bolt fasteners, so as to ensure that when the slider is dragged and moved by the charging cable, the connection between the charging cable and the charging module will not be pulled and damaged.

[0008] Preferably, the actuator includes two groups of electric push rods and a first push block, the two groups of electric push rods and the first push block are respectively located in two slots at the interface end of the charging gun, the electric push rods are fixed in the slots, and the first push block is fixed on the output shaft of the electric push rods; when the actuator receives a corresponding instruction, the electric push rods will start, and the output shaft of the electric push rods will drive the first push block to extend out of the slot and then contact the car charging port, thereby disengaging the charging gun from the car charging port.

[0009] Preferably, the actuator includes two groups of motors, a second push block, a rack and a gear, and the two groups of motors, the second push block, the rack and the gear are respectively located in two slots at the interface end of the charging gun, the motor is fixed in the slot, the gear is fixed on the output shaft of the motor, the rack is fixed at the rear end of the second push block, and the rack and the gear are meshed and connected; when the actuator receives a corresponding instruction, the motor will start, and the output shaft of the motor will drive the gear to rotate, and then the gear meshes with the rack to drive the second push block to extend from the slot and then contact the car charging port, thereby disengaging the charging gun from the car charging port.

[0010] Preferably, the calculation formulas for the dragging force F and the dragging displacement d are:

[0011]

[0012] Where N is the sampling window size.

[0013] Preferably, the basic threshold is set according to the specification of the charging gun, and the dynamic threshold K0 is calculated in combination with the real-time charging status:

[0014] K0=αF max +βd max

[0015] A nonlinear weighted formula is used to enhance the sensitivity of the displacement scenario. The calculation formula of the evaluation coefficient K is:

[0016] K=F filtered ·ln(1+d filtered )

[0017] Among them, α, β are weight coefficients, F max is the maximum tensile strength, d max To allow displacement.

[0018] Preferably, the control logic of the control module for the working state of the actuator according to the comparison result is as follows:

[0019] When K ≥ K0 and duration t ≥ 1s, it is determined to be a drag event;

[0020] The actuator starts with a constant acceleration a to ensure a smooth separation process:

[0021]

[0022] Among them, d retract To escape from the stroke, t retract To escape from time.

[0023] The present invention also provides a self-service cloud service charging pile for a charging pile, comprising a cloud server connected to the control screen signal in the plurality of charging piles, the cloud server is equipped with a cloud system, and a cloud payment platform is integrated with the cloud system, the control screen is equipped with a subsystem that interacts with the cloud system, the subsystem is also equipped in an associated APP in a mobile terminal, the mobile terminal is connected to the cloud server signal, and each box is installed with a camera electrically connected to the control screen in the middle position at the rear of the parking space.

[0024] Compared with the prior art, the present invention provides a charging pile and a self-service cloud service charging pile, which have the following beneficial effects:

[0025] 1. A charging pile and a self-service cloud service charging pile, which monitor the displacement and drag force of the charging gun in real time by setting a displacement acquisition module and a drag force acquisition module. The control module can comprehensively analyze these data and generate an evaluation coefficient, and compare it with a pre-set reference threshold to accurately determine whether the charging gun has been dragged. Once a drag event is detected, the actuator is immediately activated to automatically detach the charging gun from the car charging port, effectively avoiding damage to the charging pile and the car charging port due to negligence of the owner, and reducing maintenance costs and safety risks.

[0026] 2. A charging pile and a self-service cloud service charging pile, the design of the slide rail, slider and spring in the slide rail mechanism enables the charging cable to drive the slider to overcome the spring force and move along the slide rail when the charging gun is dragged, and the displacement acquisition module can accurately and in real time detect the displacement of the charging gun being dragged out. During normal charging, the normal force of the owner pulling the charging cable cannot overcome the spring force, ensuring the relative stability of the slider position, ensuring the accuracy and reliability of displacement detection, and avoiding unnecessary startup of the actuator due to misjudgment.

[0027] 3. A charging pile and a self-service cloud service charging pile, the fixing part set on the control screen is composed of two clamps and bolt fasteners. After adjusting the remaining length of the charging cable between the slider and the box, the clamp can be closed and fixed on the charging cable. In this way, when the slider is dragged and moved by the charging cable, the connection between the charging cable and the charging module can be effectively protected from being pulled and damaged, thereby extending the service life of the charging equipment and reducing the maintenance and replacement costs caused by damage to the connection parts.

[0028] 4. A charging pile and a self-service cloud service charging pile, which obtain the drag force and the drag displacement through an accurate calculation formula, and set the basic threshold value in combination with the specifications of the charging gun, and then calculate the dynamic threshold value according to the real-time charging status. The evaluation coefficient is calculated using a nonlinear weighted formula to enhance the sensitivity of the displacement scenario. The control module has a clear logic for determining the drag event based on the comparison results, and the actuator is started at a constant acceleration, ensuring a smooth separation process, which can not only accurately determine the drag event, but also avoid secondary damage to the charging equipment and the car when performing the disengagement operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0030] Figure 2 This is a schematic diagram of the first angle structure of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0031] Figure 3 A schematic diagram of the structure of a charging pile and a self-service cloud service charging pile from a second angle proposed by the present invention;

[0032] Figure 4 A schematic diagram of the internal structure of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0033] Figure 5 This is a schematic diagram of the installation structure of a drag force collection module of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0034] Figure 6 For the present invention Figure 3 A schematic diagram of the enlarged structure at point A;

[0035] Figure 7 A schematic diagram of the fixing structure of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0036] Figure 8 A schematic diagram of the installation structure of a first push block of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0037] Fig. 9 A schematic diagram of the installation structure of a second push block of a charging pile and a self-service cloud service charging pile proposed by the present invention;

[0038] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure at B.

[0039] In the figure: 1. Box; 2. Control panel; 3. Charging cable; 4. Charging gun; 5. Gun holder; 6. Displacement acquisition module; 7. Drag force acquisition module; 8. Control module; 9. Slide rail; 10. Slider; 11. Spring; 12. Fixing part; 1201. Clamp; 1202. Bolt fastener; 13. Notch; 14. Electric push rod; 15. First push block; 16. Motor; 17. Second push block; 18. Rack; 19. Gear; 20. Camera. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0041] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 cannot be understood as a limitation on the present invention.

[0042] Reference Figure 1-Figure 10A charging pile and a self-service cloud service charging pile, comprising a box 1, a charging module is installed inside the box 1, a control panel 2 is installed at the front end of the box 1, the charging module is electrically connected to a charging line 3, the other end of the charging line 3 is connected to a charging gun 4, a gun seat 5 is installed on one side of the box 1, the charging gun 4 can be inserted on the gun seat 5, and also includes a displacement acquisition module 6, a drag force acquisition module 7 and a control module 8, the end of the charging line 3 is installed on a slide rail mechanism, the displacement acquisition module 6 is located on the slide rail mechanism and is used to detect the displacement of the charging gun 4 being dragged out in real time, the drag force acquisition module 7 is installed at the connection between the charging gun 4 and the charging line 3, and is used to detect the drag force of the charging gun 4 in real time; the control module 8 is fixed on the inner wall of one side of the box 1;

[0043] It should be noted that the displacement acquisition module 6 can be a displacement sensor or other equipment that can detect the amount of scratches on the workpiece surface in real time, the drag force acquisition module 7 can be a tension sensor or other equipment that can detect the amount of debris accumulated on the workpiece surface in real time, and the control module 8 is an embedded controller (such as STM32 series) with an integrated data fusion algorithm. Therefore, the displacement acquisition module 6, the drag force acquisition module 7 and the control module 8 are not specifically limited here and can be selected according to actual needs;

[0044] When in use, the car owner can charge the car by taking the charging gun 4 out of the gun holder 5. When the car owner forgets to unplug the charging gun 4 and drives away directly, the control module 8 will receive the data collected by the displacement acquisition module 6 and the drag force acquisition module 7 in real time, and conduct a comprehensive analysis, and then generate an evaluation coefficient. By comparing the evaluation coefficient with a preset evaluation coefficient reference threshold, it is determined whether the charging gun 4 is dragged, and the working state of the actuator is controlled according to the comparison result. If the charging gun 4 is dragged, the actuator will start and automatically disengage the charging gun 4 from the car charging port, thereby avoiding the occurrence of a charging pile drag event.

[0045] The slide rail mechanism includes a slide rail 9 fixed to one side of the box 1 close to the charging line 3, a slider 10 is slidably connected in the slide rail 9, the slider 10 is sleeved on the charging line 3, a spring 11 is fixed to the inner wall of one side of the slider 10, and the other end of the spring 11 is fixed to the inner wall of one side of the slide rail 9, and the displacement acquisition module 6 is fixed to the inner wall of one side of the slide rail 9;

[0046] During use, when the charging gun 4 is dragged, the charging cable 3 will drive the slider 10 to overcome the elastic force of the spring 11 and move along the slide rail 9, so that the displacement of the charging gun 4 being dragged can be better detected in real time through the displacement acquisition module 6. During normal charging, the force applied by the owner when pulling the charging cable 3 normally cannot overcome the elastic force of the spring 11, thereby ensuring that the position of the slider 10 is relatively stable under normal circumstances.

[0047] The control screen 2 is provided with a fixing member 12 located above the slider 10. The fixing member 12 includes two clamps 1201 that can just clamp the charging cable 3. The two clamps 1201 are fixedly connected together by a set of bolt fasteners 1202.

[0048] When in use, after adjusting the remaining length of the charging cable 3 between the slider 10 and the box 1, the two clamps 1201 can be clamped onto the charging cable 3, and the two clamps 1201 can be fixed to the charging cable 3 by bolt fasteners 1202. This ensures that when the slider 10 is dragged and moved by the charging cable 3, the connection between the charging cable 3 and the charging module will not be pulled and damaged.

[0049] In Example 1, referring to Figure 8 The actuator includes two sets of electric push rods 14 and a first push block 15, which are respectively located in two notches 13 at the interface end of the charging gun 4, the electric push rods 14 are fixed in the notches 13, and the first push block 15 is fixed on the output shaft of the electric push rods 14;

[0050] During use, when the actuator receives the corresponding command, the electric push rod 14 will start, and the output shaft of the electric push rod 14 will drive the first push block 15 to extend from the slot 13 and then contact the car charging port, thereby separating the charging gun 4 from the car charging port.

[0051] In Example 2, referring to Figure 8 and Fig.10 The actuator includes two groups of motors 16, a second push block 17, a rack 18 and a gear 19. The two groups of motors 16, the second push block 17, the rack 18 and the gear 19 are respectively located in the two notches 13 at the interface end of the charging gun 4. The motor 16 is fixed in the notch 13, the gear 19 is fixed on the output shaft of the motor 16, the rack 18 is fixed at the rear end of the second push block 17, and the rack 18 and the gear 19 are meshed and connected;

[0052] During use, when the actuator receives the corresponding instruction, the motor 16 will start, and the output shaft of the motor 16 will drive the gear 19 to rotate, and then the gear 19 engages the rack 18 to drive the second push block 17 to extend from the slot 13 and then contact the car charging port, thereby disengaging the charging gun 4 from the car charging port.

[0053] In another embodiment, through the cooperation between the displacement acquisition module 6, the drag force acquisition module 7, the control module 8 and the actuator, the control logic of automatically disengaging the charging gun 4 from the vehicle charging port is as follows:

[0054] 1. Signal acquisition and filtering:

[0055] Perform sliding average filtering on F and d to eliminate noise interference.

[0056]

[0057] (N is the sampling window size)

[0058] 2. Dynamic threshold calculation:

[0059] Set the basic threshold according to the charger specifications and combine it with the real-time charging status (for example, enter the warning mode when the current is 0):

[0060] K0=αF max +βd max

[0061] (α, β are weight coefficients, F max is the maximum tensile strength, d max To allow displacement)

[0062] 3. Risk factor assessment:

[0063] Using a nonlinear weighted formula to enhance the sensitivity of the displacement scenario, the calculation formula for the evaluation coefficient K is:

[0064] K=F filtered ·ln(1+d filtered )

[0065] Trigger conditions:

[0066] When K≥K0 and duration t≥1s, it is determined as a drag event;

[0067] The actuator starts with a constant acceleration a to ensure a smooth separation process:

[0068]

[0069] (d retract To escape from the stroke, t retract to escape time).

[0070] In another embodiment, the present invention further provides a self-service cloud service charging pile for a charging pile, including a cloud server connected to the control screen 2 in a plurality of charging piles by signal, the cloud server is equipped with a cloud system, and a cloud payment platform is integrated with the cloud system, the control screen 2 is equipped with a subsystem that interacts with the cloud system, the subsystem is also installed in an associated APP in a mobile terminal, the mobile terminal is connected to the cloud server by signal, and each box 1 is installed with a camera 20 electrically connected to the control screen 2 in the middle position at the rear of the parking space;

[0071] During the operation of the self-service cloud service system based on charging piles, the car owner can use the APP in his mobile terminal to register a dedicated account, which is logged into the APP associated with the mobile terminal and interacts with the cloud system through the subsystem. The dedicated account is bound to the car owner's identity information for real-name authentication, and is also bound to the basic information of the vehicle, such as the license plate number and vehicle model;

[0072] At this time, the car owner unplugs the charging gun 4 and inserts it into the vehicle's charging port for charging. After the charging pile detects the charging signal, it supplies power and performs relevant billing. After charging is completed, the charging pile disconnects the power supply and settles the charging fee. The car owner does not need to take the initiative to settle the charging fee. The relevant account is pre-charged or bound to a credit payment through a cloud payment platform. The fee is automatically deducted after charging is completed. At the start and end of charging, a reminder notification will be sent to the car owner's mobile terminal through information transmission, and the charging record will be synchronized in real time on the APP logged in to the relevant account. The car owner can view it at any time and actively terminate charging through the APP.

[0073] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A charging pile, comprising a box (1), characterized in that: The box (1) is provided with a charging module inside, a control panel (2) is provided at the front end of the box (1), the charging module is electrically connected to a charging cable (3), the other end of the charging cable (3) is connected to a charging gun (4), a gun seat (5) is provided on one side of the box (1), the charging gun (4) can be inserted into the gun seat (5), and the box (1) further comprises a displacement acquisition module (6), a drag force acquisition module (7) and a control module (8), the end of the charging cable (3) is provided on a slide rail mechanism, the displacement acquisition module (6) is located on the slide rail mechanism and is used to detect in real time the displacement of the charging gun (4) being dragged out, and the drag force acquisition module (7) is provided at the connection between the charging gun (4) and the charging cable (3) and is used to detect in real time the drag force exerted on the charging gun (4).

2. A charging pile according to claim 1, characterized in that: The slide rail mechanism comprises a slide rail (9) fixed to a side of the box (1) close to the charging line (3); a slider (10) is slidably connected inside the slide rail (9); the slider (10) is sleeved on the charging line (3); a spring (11) is fixed to an inner wall of one side of the slider (10); the other end of the spring (11) is fixed to an inner wall of one side corresponding to the slide rail (9); and a displacement acquisition module (6) is fixed to an inner wall of one side of the slide rail (9).

3. A charging pile according to claim 2, characterized in that: The control panel (2) is provided with a fixing member (12) located above the slider (10), and the fixing member (12) includes two clamps (1201) that can just clamp the charging cable (3), and the two clamps (1201) are fixedly connected together by a group of bolt fasteners (1202).

4. A charging pile according to claim 1, characterized in that: The actuator comprises two groups of electric push rods (14) and a first push block (15), the two groups of electric push rods (14) and the first push block (15) are respectively located in two notches (13) at the interface end of the charging gun (4), the electric push rods (14) are fixed in the notches (13), and the first push block (15) is fixed on the output shaft of the electric push rods (14).

5. A charging pile according to claim 1, characterized in that: The actuator comprises two groups of motors (16), a second push block (17), a rack (18) and a gear (19); the two groups of motors (16), the second push block (17), the rack (18) and the gear (19) are respectively located in two notches (13) at the interface end of the charging gun (4); the motor (16) is fixed in the notch (13); the gear (19) is fixed on the output shaft of the motor (16); the rack (18) is fixed at the rear end of the second push block (17); and the rack (18) and the gear (19) are meshed and connected.

6. A charging pile according to claim 1, characterized in that: The calculation formula of the drag force F and the drag displacement d is: Where N is the sampling window size.

7. A charging pile according to claim 6, characterized in that: The basic threshold is set according to the specifications of the charging gun (4), and the dynamic threshold K0 is calculated in combination with the real-time charging status: K0=α F max +β d max A nonlinear weighted formula is used to enhance the sensitivity of the displacement scenario. The calculation formula of the evaluation coefficient K is: K=F filtered ·ln(1+d filtered ) Among them, α, β are weight coefficients, F max is the maximum tensile strength, d max To allow displacement.

8. A charging pile according to claim 7, characterized in that: The control logic of the control module (8) for the working state of the actuator according to the comparison result is as follows: When K ≥ K0 and duration t ≥ 1s, it is determined to be a drag event; The actuator starts with a constant acceleration a to ensure a smooth separation process: Among them, d retract To escape from the stroke, t retract To escape from time.

9. A self-service cloud service charging pile according to claim 1, characterized in that: The invention comprises a cloud server connected to the control screens (2) in the plurality of charging piles by signal, the cloud server being equipped with a cloud system, and a cloud payment platform being integrated with the cloud system, the control screen (2) being equipped with a subsystem interacting with the cloud system, the subsystem also being equipped in an associated APP in a mobile terminal, the mobile terminal being connected to the cloud server by signal, and each box (1) being installed with a camera (20) electrically connected to the control screen (2) in the middle position at the rear of the parking space.

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