Automatic transceiving control device for charging cable of charging pile

Abstract

According to the automatic receiving and sending control device for the charging cable of the charging pile, the processor controls the direct-current gear motor to rotate in the forward direction or the reverse direction, the direct-current gear motor drives the concave roller, the cable is driven to move horizontally through friction of the concave roller, and extending and retracting of the charging cable are achieved; a specific color is sprayed to the corresponding position of the cable, the sprayed color is recognized through a color sensor, the cable dragging behavior is detected, and cable movement limiting monitoring is carried out; the remote controller, the 2.4 GHz chip and the antenna communicate with the processor, so that a charging user can manually control the extension and retraction of the charging cable; the processor is in data communication with a charging management system platform through the 4G module and the antenna, and a charging service instruction is downloaded to the processor through the 4G module to control a charging cable to extend and retract; a tilt angle sensor is arranged in a remote control module installed on the charging gun to achieve discarding detection of the charging gun, and when discarding is conducted, a processor controls automatic recycling of a charging cable, so that the charging gun is prevented from being discarded to the ground for a long time.

Description

Technical Field

[0001] The utility model relates to the field of automobile charging piles, and in particular to an automatic sending and receiving control device for charging cables of a charging pile. Background Art

[0002] With the rapid development of the new energy transportation industry, charging piles, as an important supporting facility for new energy vehicles, have also begun to be built on a large scale to provide convenient and reliable charging services for new energy vehicles.

[0003] At present, car charging piles generally use an external charging cable mode, that is, the charging gun of the charging pile, together with the charging cable, is hung on the charging pile bracket. When the user uses it, it is removed from the charging pile and inserted into the car charging port for charging.

[0004] The problem with the external charging cable hanger mode is that the length of the charging cable is fixed, but due to the uncertainty of the parking position and direction when the user is charging, in order to ensure that the length of the charging cable is sufficient to meet various parking methods, the charging cable must be long enough. As a result, the charging cable is often dragged on the ground during user operation, causing damage due to friction with the ground, and the charging cable will be damaged due to rain and snow when charging outdoors.

[0005] In order to improve the drawbacks of fixed-length charging cables of traditional charging piles, the present application proposes an automatic control device for sending and receiving charging cables applied to charging piles or new energy charging systems.

[0006] The control device is installed on the charging pile or deployed as an independent device. Its feature is that it can control the extension length of the charging cable according to user needs. When the charging operation is completed, the charging cable is automatically retracted, thereby ensuring that the user charges with an appropriate cable length and avoiding hidden dangers such as dragging on the ground. Summary of the invention

[0007] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an automatic sending and receiving control device for a charging pile charging cable, which can control the extended length of the charging cable according to user needs. When the charging operation is completed, the charging cable is automatically retracted, thereby ensuring that the user has an appropriate length of cable when charging, avoiding hidden dangers such as dragging on the ground.

[0008] The technical solution of the utility model is as follows: it includes a control module, a DC reduction motor, a roller, a charging cable, and a speaker. The control module controls the DC reduction motor to rotate forward or reversely, and the DC reduction motor drives the concave roller to drive the cable to move horizontally through the friction of the concave roller to achieve the extension and recovery of the charging cable. The control module drives the speaker to give voice reminders;

[0009] The control module includes a processor, a 4G module, and a 4G antenna. The processor communicates data with the charging management system platform through the 4G module and the antenna.

[0010] The control module includes a motor drive circuit, and the processor drives the DC reduction motor to rotate forward or reverse through the motor drive circuit;

[0011] The control module includes a voice playback module and a speaker, the voice playback module includes a voice chip and a voice amplifier, the processor is connected to the voice chip, the voice chip is connected to the voice amplifier, and the voice amplifier is connected to the speaker interface;

[0012] The control module includes a 2.4GHz chip and an antenna, and the processor communicates data with the remote control module via the 2.4GHz chip and the antenna;

[0013] The control module includes an indicator light driving module, and the processor is connected to the indicator light interface through the indicator light driving module;

[0014] The control module includes a power module, which is connected to a 48V battery and a 48V adapter power supply, and supplies power to a motor drive circuit through a power switching circuit and a DC / DC power conversion module. After conversion by the DC / DC power conversion module, it is converted by an LDO power conversion module to supply power to a processor, a 2.4GHz chip, a 4G module, a voice chip, and an indicator light drive module.

[0015] The utility model has the following beneficial effects: the processor controls the DC reduction motor to rotate forward or reversely, the DC reduction motor drives the concave roller, and the friction of the concave roller drives the cable to move horizontally, thereby realizing the extension and recovery of the charging cable;

[0016] Spray a specific color on the corresponding position of the cable, and use the color sensor to identify the sprayed color to detect the cable dragging behavior and monitor the cable movement limit;

[0017] Through the remote control, 2.4GHz chip, antenna and processor communication, the charging user can manually control the extension and retraction of the charging cable; the processor communicates data with the charging management system platform through the 4G module and antenna. The car charging user uses the APP or WeChat applet on the mobile phone to scan the QR code attached to the charging pile, connect to the charging management system platform, and transmit the charging service instructions to the processor through the 4G module to control the extension or retraction of the charging cable;

[0018] There is an inclination sensor inside the remote control module installed on the charging gun. The charging gun discard detection is realized based on the change in the inclination angle of the charging gun when it is charging or discarded. When discarded, the processor controls the automatic recovery of the charging cable to prevent the charging gun from being discarded on the ground for a long time and causing damage or safety accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a structural block diagram of the control module of the utility model;

[0021] Figure 3 The following is a schematic diagram of the recognition of the spray color by the color sensor of the utility model, wherein a is an existing recognition schematic diagram, b is an improved schematic diagram, and b is a second improved schematic diagram;

[0022] Figure 4 This is a schematic diagram of the utility model of the tilt sensor detecting the discarding of the charging gun. DETAILED DESCRIPTION

[0023] For the above and other technical contents, features and functions of the present invention, please refer to the following attached Figures 1 to 4 The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0024] Various exemplary embodiments of the present utility model will be described below with reference to the accompanying drawings.

[0025] Embodiment 1, a charging pile charging cable automatic sending and receiving control device, comprising a control module, a DC reduction motor, a roller, a charging cable, and a speaker, wherein the control module controls the DC reduction motor to rotate forward or reversely, the DC reduction motor drives the concave roller, and the friction of the concave roller drives the cable to move horizontally to achieve the extension and recovery of the charging cable, and the control module drives the speaker to give a voice reminder;

[0026] The control module includes a processor, a 4G module, and a 4G antenna, wherein the 4G module and the antenna are mobile communications and are provided by mobile communication operators. The processor communicates data with the charging management system platform through the 4G module and the antenna. The car charging user uses the APP or WeChat applet on the mobile phone to scan the QR code pasted on the charging pile, connects to the charging management system platform software, completes the login and charging service request, and the charging management system platform software transmits the charging service instruction to the processor through the 4G module and the 4G antenna, and the processor controls the extension or retraction of the charging cable;

[0027] The control module includes a motor drive circuit, and the processor outputs a control signal to drive the DC reduction motor to rotate forward or reverse through the motor drive circuit;

[0028] The control module includes a voice playback module and a speaker. The voice playback module includes a voice chip and a voice amplifier. The processor is connected to the voice chip, the voice chip is connected to the voice amplifier, and the voice amplifier is connected to the speaker interface. It can provide corresponding help, warning and other voice playback according to the charging operation steps and the user's operation;

[0029] The control module includes a 2.4GHz chip and an antenna. The processor communicates data with the remote control module through the 2.4GHz chip and the antenna. The remote control module is installed on the charging gun. When charging, the user controls the extension or retraction of the cable by pressing a button on the remote control module.

[0030] The control module includes an indicator light driving module, and the processor is connected to the indicator light interface through the indicator light driving module for charging status indication;

[0031] The control module includes a power module, which is connected to a 48V battery and a 48V adapter power supply, and supplies power to a motor drive circuit through a power switching circuit and a DC / DC power conversion module. After conversion by the DC / DC power conversion module, it is converted by an LDO power conversion module to supply power to a processor, a 2.4GHz chip, a 4G module, a voice chip, and an indicator light drive module.

[0032] Embodiment 2, based on embodiment 1, further includes a motor drive current detection circuit, which monitors the working current of the DC reduction motor in real time. When the charging cable is extended or retracted, if the cable is stuck or dragged manually for some reason, the working current of the DC reduction motor will increase. After the processor monitors the increase in current through the drive current detection circuit, it takes corresponding operating measures, such as reverse movement to test the cable status, on-site voice alarm, and alarm to the system platform.

[0033] Embodiment 3, based on Embodiment 1, further includes a charging cable movement limit detection module to detect the cable dragging behavior and perform cable movement limit monitoring (for determining whether the cable is extended to the maximum length and reaches the limited length when it is retracted);

[0034] The charging cable movement limit detection module is a color sensor. The working principle of the color sensor is to emit a light beam to illuminate the surface of the detected object, and the reflected light is received by the color sensor. The R\G\B components in the built-in red, green and blue three-color sensing colors are used to parse the surface color of the detected object through a specific algorithm, so as to spray a specific color at the limit position of the charging cable. When the charging cable moves, the color of the cable surface is recognized by the color sensor. When it reaches the limit area painted with a specific color, the color is recognized and transmitted to the processor, thereby realizing the recognition of the specific position of the cable when it moves, as shown in Figure b; as a further practical improvement, different colors are sprayed on different areas of the cable surface to mark different lengths or functional areas of the cable, such as white for extending or retracting limit detection. The detection area is red, and the warning area is red. When the control device extends the charging cable, if the white limit detection area is identified, it indicates that the cable has reached the maximum length; when the charging cable is retracted, if the white limit detection area is identified, it indicates that the cable has reached the maximum length. If the red area is detected when the cable is extended or retracted, in the application scenario, the user may not understand the usage method and drag the charging cable by himself for logging in operations such as scanning the code. This behavior will cause damage and abnormality to the system control system. Based on this problem, further improvements are made, and a specific color is sprayed next to the limit detection area as a drag detection area, as shown in Figure c. When the control device is in standby mode, the drive unit controls the charging cable to stay in the limit detection area. The color sensor continuously scans the color of the cable. When the user illegally drags the cable, the cable moves outward, the drag detection area is identified, the control module determines that there is a dragging behavior, and drives the voice unit to play the warning voice.

[0035] Embodiment 4, based on embodiment 1, further includes a charging gun abandonment detection module. When charging a new energy vehicle, sometimes the user does not put the charging gun back on the rack and abandons it on the ground. Therefore, it is necessary to have the ability to detect this behavior to prevent the charging gun from being abandoned on the ground for a long time and causing damage or safety accidents. When charging is completed, the charging pile automatically cuts off the charging current. It is impossible to detect whether the charger is unplugged from the car charging port. Practical methods such as travel switches and metal detection require changes to the structure of the charging gun, which is difficult to implement due to factors such as cost and power consumption. Based on ergonomic factors, the car's charging interface will be designed at a specific angle to facilitate users to insert or unplug the charger more comfortably. During charging, the charging gun maintains a specific angle. When the charger is discarded on the ground, since the charging gun is an L-shaped design, the charger will tilt to one side. Based on this phenomenon, a charger charging status detection based on the posture and position of the charger is proposed, such as Figure 4As shown, an inclination sensor is installed on the internal circuit board of the remote control module to measure the inclination of the charging gun. When the charging gun is plugged into the charging port of the car, the charging gun is at a specific angle in the front and back and left and right directions. The angle is detected by the inclination sensor and transmitted to the processor of the control device. The processor recognizes that the charging gun is plugged into the car charging port through a preset value. When the charging gun is pulled out of the car charging port, if it is discarded on the ground, due to the shape of the charging gun, the charging gun generally tilts to the left or right. The inclination sensor detects that the inclination angle exceeds the range of the state of being plugged into the charging port, and determines that the charging gun is discarded. After detecting that the charging gun is discarded, the control device starts a voice reminder and automatically retracts the control cable after a delay.

[0036] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A charging pile charging cable automatic sending and receiving control device, comprising a control module, a DC reduction motor, a roller, a charging cable, and a speaker, characterized in that: The control module controls the DC reduction motor to rotate forward or reverse, and the DC reduction motor drives the concave roller, and the friction of the concave roller drives the cable to move horizontally to achieve the extension and retraction of the charging cable, and the control module drives the speaker to give a voice reminder; The control module includes a processor, a 4G module, and a 4G antenna. The processor communicates data with the charging management system platform through the 4G module and the antenna. The control module includes a motor drive circuit, and the processor drives the DC reduction motor to rotate forward or reverse through the motor drive circuit; The control module includes a voice playback module and a speaker, the voice playback module includes a voice chip and a voice amplifier, the processor is connected to the voice chip, the voice chip is connected to the voice amplifier, and the voice amplifier is connected to the speaker interface; The control module includes a 2.4GHz chip and an antenna, and the processor communicates data with the remote control module via the 2.4GHz chip and the antenna; The control module includes an indicator light driving module, and the processor is connected to the indicator light interface through the indicator light driving module; The control module includes a power module, which is connected to a 48V battery and a 48V adapter power supply, and supplies power to a motor drive circuit through a power switching circuit and a DC / DC power conversion module. After conversion by the DC / DC power conversion module, it is converted by an LDO power conversion module to supply power to a processor, a 2.4GHz chip, a 4G module, a voice chip, and an indicator light drive module.

2. The automatic sending and receiving control device for charging cables of a charging pile according to claim 1, characterized in that: It also includes a motor drive current detection circuit to monitor the working current of the DC reduction motor in real time.

3. The automatic sending and receiving control device for charging cables of a charging pile according to claim 1, characterized in that: It also includes a charging cable motion limit detection module; The charging cable movement limit detection module is a color sensor, and the color sensor is connected to the processor.

4. The automatic sending and receiving control device for a charging pile charging cable according to claim 1, characterized in that: It also includes a charging gun discard detection module; The charging gun abandonment detection module is to install a tilt sensor on the internal circuit board of the remote control module. The tilt sensor measures the tilt of the charging gun and transmits it to the processor. The processor recognizes that the charging gun is inserted into the car charging port through a preset value.

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