Charging pile prompting device and charging pile

Abstract

The utility model relates to the technical field of new energy charging piles, and provides a charging pile prompting device and a charging pile. The charging pile prompting device comprises a prompting lamp, a communication module and a micro-control unit, the micro-control unit is connected with the prompting lamp, and the micro-control unit is connected with the communication module; the micro-control unit is used for being connected with a main control board of the charging pile through the communication module, the micro-control unit generates a circulation control signal through a main control signal of the main control board, and the light emitting state of the prompting lamp is controlled according to the circulation control signal until the next main control signal arrives. The communication module and the micro-control unit are additionally arranged between the prompting lamp and the main control board, the main control board only needs to send a main control signal to the micro-control unit, and the micro-control unit controls the prompting lamp to emit light circularly, so that the data processing pressure of the main control board is reduced, and the overall energy efficiency is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of new energy charging piles, and in particular to a charging pile prompting device and a charging pile. Background Art

[0002] Electric vehicles are gradually replacing traditional vehicles and are widely used due to their advantages such as energy saving, environmental protection and pollution-free. Charging piles are supporting facilities for electric vehicles and are the carriers for charging electric vehicles.

[0003] In the related art, the main control board of the charging pile directly controls the lighting status of the indicator light. If the indicator light is to remain on, the main control board needs to continuously send control signals to the indicator light for control. In addition, the main control board of the charging pile is also responsible for user payment, charging startup, charging process control, billing, etc. The data processing pressure of the main control board of the charging pile is high. Utility Model Content

[0004] The purpose of the present disclosure is to provide a charging pile reminder device and a charging pile to solve the problems in the related art.

[0005] In order to achieve the above object, the present disclosure provides a charging pile prompting device, the charging pile prompting device comprising:

[0006] Tip light,

[0007] Communication module,

[0008] A micro control unit is connected to the warning light, and the micro control unit is connected to the communication module, and the micro control unit is used to connect to the main control board of the charging pile through the communication module.

[0009] Optionally, the charging pile prompting device further includes:

[0010] A card reading module is connected to the micro control unit.

[0011] Optionally, the card reading module includes:

[0012] A coil, the coil being used to generate a coil electrical signal when sensing the proximity of a user card;

[0013] A card reader chip is connected to the coil and the card reader chip is connected to the micro control unit.

[0014] Optionally, the prompt light includes an RGB light strip.

[0015] Optionally, the RGB light strip is arranged around the coil.

[0016] Optionally, the charging pile prompting device further includes:

[0017] A driving circuit, wherein the micro control unit is connected to the RGB light strip via the driving circuit.

[0018] Optionally, the charging pile prompting device further includes:

[0019] A buzzer is connected to the micro control unit.

[0020] Optionally, the communication module includes an RS232 transceiver.

[0021] Optionally, the charging pile prompting device further includes:

[0022] A power conversion module is connected to the prompt light, the RS232 transceiver, and the micro control unit.

[0023] The present disclosure also provides a charging pile, the charging pile comprising:

[0024] The main control board of the charging pile;

[0025] And, the charging pile reminder device as described in any of the above items.

[0026] Through the above technical scheme, the charging pile prompt device includes: a prompt light, a communication module and a micro control unit. The micro control unit is connected to the prompt light, and the micro control unit is connected to the communication module. The micro control unit is used to connect to the main control board of the charging pile through the communication module. The micro control unit generates a cyclic control signal through the main control signal of the main control board, and controls the lighting state of the prompt light according to the cyclic control signal until the next main control signal arrives. A communication module and a micro control unit are added between the prompt light and the main control board. The main control board only needs to send a main control signal to the micro control unit, and the rest of the control of the prompt light is performed by the micro control unit, which reduces the data processing pressure of the main control board and improves the overall energy efficiency.

[0027] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0029] Figure 1 The figure is a block diagram of a charging pile prompting device according to an exemplary embodiment.

[0030] Figure 2 The figure is a schematic diagram of a charging pile prompt device according to an exemplary embodiment.

[0031] Figure 3 The figure is a schematic diagram of another charging pile prompting device according to an exemplary embodiment.

[0032] Figure 4 is a flowchart of a program processing of a micro control unit according to an exemplary embodiment.

[0033] Figure 5 is a block diagram of a charging pile according to an exemplary embodiment.

[0034] Description of Reference Numerals

[0035] 10-charging pile prompt device, 11-prompt light, 12-communication module, 13-micro control unit, 14-card reading module, 15-coil, 16-card reader chip, 17-power conversion module, 20-main control board, 18-top panel layer, 19-bottom panel layer. DETAILED DESCRIPTION

[0036] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0037] Electric vehicles are gradually replacing traditional vehicles and are widely used due to their advantages such as energy saving, environmental protection and pollution-free. Charging piles are supporting facilities for electric vehicles and are the carriers for charging electric vehicles.

[0038] A charging pile is a hardware device that provides electric vehicle charging services to users. It is mainly composed of a pile body (cabinet), a control unit, and a charging unit. Its human-computer interaction methods include touch screen, card reader, and QR code scanning. The basic operating status of the charging pile is usually indicated by an indicator light. A charging pile with a screen can output more intuitive and detailed information. With the development of technology, charging piles are becoming more and more small and convenient. This feature is more obvious in private charging piles and on-board charging piles.

[0039] In the related art, when displaying dynamic lighting effects such as breathing and running lights, the miniaturized charging pile main control board needs to continuously output display data of a specific timing, which occupies the processor resources of the charging pile main control board. The charging pile main control board directly controls the light-on status of the indicator light. If the indicator light is to remain on, the main control board needs to continuously send control signals to the indicator light for control. In addition, the charging pile main control board is also responsible for user payment, charging startup, charging process control, billing, etc., and the charging pile main control board is under great pressure to process data.

[0040] In order to solve the above technical problems, a microcontroller unit is connected to the indicator light, and the microcontroller unit is connected to the communication module. The microcontroller unit is used to connect to the main control board of the charging pile through the communication module. The microcontroller unit generates a cyclic control signal through the main control signal of the main control board, and controls the lighting state of the indicator light according to the cyclic control signal until the next main control signal arrives. A communication module and a microcontroller unit are added between the indicator light and the main control board. The main control board only needs to send a main control signal to the microcontroller unit, and the rest of the control of the indicator light is performed by the microcontroller unit, which reduces the data processing pressure of the main control board and improves the overall energy efficiency.

[0041] Figure 1 is a block diagram of a charging pile reminder device according to an exemplary embodiment. Figure 1 The charging pile prompt device 10 may include: a prompt light 11, a communication module 12 and a micro control unit 13.

[0042] The micro control unit 13 is connected to the warning light 11 , and the micro control unit 13 is connected to the communication module 12 . The micro control unit 13 is used to connect to the main control board 20 of the charging pile through the communication module 12 .

[0043] The microcontrol unit 13 receives the main control signal sent by the main control board 20, and generates a cyclic control signal according to the main control signal to control the indicator light 11 to light up until the next main control signal arrives. The light state of the indicator light 11 represents the charging state of the charging pile. Different colors can be used to represent the different charging states of the charging pile, and different flashing modes can also be used to represent the different charging states of the charging pile, which is not limited in this embodiment.

[0044] For example, a red light that is always on indicates that the charging pile is in a normal standby state. If the red light of the indicator light on the charging pile does not flash after the gun is inserted, it may be that the gun is not properly inserted and needs to be reinserted; a flashing red light means that after the charging gun is inserted into the charging port of the vehicle, the corresponding indicator light changes from a solid red light to a flashing red light, indicating that the charging gun is well connected to the vehicle, but charging has not officially started at this time; a flashing green light means that after the charging pile receives a signal from the Bluetooth card or the car's charging system, the indicator light changes from flashing red to flashing green, indicating that the vehicle is charging; a green light that is always on means that charging is complete and the gun can be pulled out to end charging; a continuous flashing yellow light may indicate that the equipment voltage is too low or other related faults require power failure, and the power supply line needs to be inspected and then powered on again.

[0045] In this way, the main control board 20 only needs to send a single main control signal to keep the indicator light 11 in a lighting state, and there is no need to continuously send the main control signal to control the indicator light 11, which reduces the data processing pressure of the main control board 20 and improves the overall energy efficiency. Moreover, the lighting effects of indicator lights of different products can be achieved by modifying the program, and the hardware does not need to replace materials.

[0046] Among the user interaction methods of charging piles, the card reader is the most convenient one. Users use contactless cards to swipe the card in the card reading area of ​​the charging pile, and start charging after verification. The status information during the charging process can be most intuitively expressed by the color of the indicator light and the status of the light on and off.

[0047] In a possible implementation, the charging pile prompt device 10 may further include: a card reading module 14, which is connected to the micro control unit 13. The micro control unit 13 is used to control the card reading module 14 to perform a card reading operation according to a preset time interval, and when the card reading module 14 reads the card information, the card information is sent to the main control board 20 through the communication module 12.

[0048] The preset time interval can be set according to actual needs, for example, 0.5s.

[0049] The micro control unit 13 controls the card reading module 14 to perform a card reading operation at a preset time interval, and uploads the card information to the main control board 20 when the card reading module 14 reads the card information, so as to avoid the main control board 20 continuously monitoring whether the card reading module 14 has read the card information.

[0050] Integrating the card reading module 14 and the warning light 11 into the charging pile warning device 10 further reduces the resource occupation of the main control board 20, reduces the data processing pressure of the main control board 20, and improves the overall energy efficiency.

[0051] The circuits of the two functional modules are concentrated together, and the center of the position of the ring-shaped indicator light belt is the card reading area, so that the basic user interaction function of the charging pile can be realized. The indicator light and the card reader use a communication module, and the user interaction of swiping the card and the light prompt is realized through the communication protocol, which reduces wiring, simplifies the hardware design of the charging pile main control board 20, and reduces the cost.

[0052] In a possible implementation, the card reading module 14 may include a coil 15 and a card reader chip 16 .

[0053] The coil 15 is used to generate a coil electrical signal when sensing the proximity of a user card.

[0054] The card reader chip 16 is connected to the coil 15 and the card reader chip 16 is connected to the micro control unit 13 . The card reader chip 16 is used to decode and convert the coil electrical signal to obtain the card information and send it to the micro control unit 13 .

[0055] The card information may include, but is not limited to, account number, account balance, usage history, charging permissions, etc.

[0056] By way of example, the coil 15 may be a printed circuit board (PCB) antenna coil 15 , and the card reader chip 16 may be a 13.56 MHz contactless card reader chip.

[0057] In a possible implementation, the prompt light 11 may include an RGB light strip.

[0058] For example, the RGB light strip may be composed of 16 WS2815 lamp beads.

[0059] The RGB light strip can be set to a circular shape, and through software programming it can achieve dynamic multi-color breathing, clockwise / counterclockwise rotating flowing lights and other effects. It can indicate the working status of the charging pile with richer light language, bringing a good user experience.

[0060] Figure 2 is a schematic diagram of a charging pile reminder device according to an exemplary embodiment. Figure 2 The RGB light strip is arranged around the coil 15 , and the prompt light 11 can be arranged on the outer circle of the card reading module 14 .

[0061] In other embodiments, the coil 15 of the card reader module 14 can be integrated in the hollow interior of the ring-shaped RGB light strip, and electronic components such as the micro control unit 13 and the card reader chip 16 can be distributed on the other side.

[0062] In a possible implementation, the charging pile prompting device 10 may further include a driving circuit.

[0063] The micro control unit 13 can be connected to the RGB light strip through a driving circuit, and the micro control unit 13 controls the light-emitting state of the RGB light strip through the driving circuit. The driving circuit converts the cyclic control signal output by the micro control unit 13 into a lamp bead driving signal.

[0064] By way of example, the driving circuit may be a 5V to 3.3V level conversion circuit.

[0065] In a possible implementation, the charging pile prompting device 10 may further include a buzzer.

[0066] The buzzer is connected to the micro control unit 13 , and the micro control unit 13 is also used to control the sounding state of the buzzer according to the main control signal of the main control board 20 .

[0067] The buzzer can be used as a sound reminder for swiping the card. The buzzer can also be used as a weak sound reminder when operating the charging pile, which can enhance the interactive experience.

[0068] In a possible implementation, the communication module 12 may include an RS232 transceiver.

[0069] The micro control unit 13 interacts with the main control board 20 via the RS232 transceiver. The main control board 20 sends a main control signal to the micro control unit 13 via the RS232 transceiver. The micro control unit 13 uploads the card information to the main control board 20 via the RS232 transceiver.

[0070] The RS232 transceiver can be connected with a 4-wire RS232 interface cable to convert RS232 signals into TTL serial port signals and provide 12V power supply to realize power supply and communication functions.

[0071] By setting up an RS232 transceiver, the internal wiring of the charging pile is reduced. Compared with the separate wiring of the card reader module 14 and the indicator light, in this embodiment, only one set of RS232 cables with a 12V power supply is required for the charging pile main control board 20, and the main control board 20 of the charging pile does not need to be designed with an additional indicator light drive interface.

[0072] Optionally, the charging pile prompting device 10 may further include:

[0073] The power conversion module 17 is connected to the indicator light 11, the RS232 transceiver, and the micro control unit 13. The power conversion module 17 is used to convert the power signal sent by the RS232 transceiver to provide power supply to the indicator light 11 and the micro control unit 13. The power conversion module 17 can be a DC-DC conversion module.

[0074] In other embodiments, the power conversion module 17 can also provide power supply to other functional modules in the charging pile prompting device 10, such as a driving circuit.

[0075] Figure 3 1 is a schematic diagram of another charging pile prompt device according to an exemplary embodiment. The charging pile prompt device 10 is made into a panel, and the charging pile prompt device 10 is composed of functional modules such as an MCU minimum system, a contactless card reader chip, a 13.56MHz antenna, a power supply, an RS232 communication interface, and a serial RGB lamp array.

[0076] The top layer 18 of the panel includes an indicator light ring composed of 16 WS2815 lamp beads, and the interior of the indicator light ring is composed of a 13.56MHz PCB antenna. The interior of the light ring is a card reading area, and the user card is placed in Figure 3 The card swiping operation is completed above the card reading area in the center of the light ring; optionally, when the user swipes the card, the light ring can temporarily interrupt and give a specific card swiping prompt light effect.

[0077] The bottom layer 19 of the panel can be provided with MCU, power supply, RS232 communication interface, contactless card reader chip, buzzer, etc. The buzzer is used for the sound prompt of swiping the card. Optionally, the buzzer can be used as a weak sound reminder when operating the charging pile to enhance the interactive experience.

[0078] The through holes on the four corners of the panel are M3 screw / stud binding holes, which are installed in the screw holes / nut columns of the charging pile housing through screws / nuts.

[0079] Based on the above charging pile prompt device, the program processing process of the micro control unit in the charging pile prompt device is given below. Figure 4 , Figure 4 The program of the micro control unit mainly includes two processes, one is processing the card swiping operation, and the other is processing the lighting effect control.

[0080] The microcontroller unit first initializes the program, sets the light strip to the initial effect, and then sets the main loop of the program to detect whether a card is swiped. If a card is swiped, the card information is sent to the charging pile main control board, and at the same time determines whether a communication data frame is received, that is, the above-mentioned main control signal. If a communication data frame is received, the data frame is parsed, and then the lighting effect is changed or a card write operation is performed.

[0081] The present disclosure also provides a charging pile, see Figure 5 , Figure 5 1 is a block diagram of a charging pile according to an exemplary embodiment. The charging pile may include a main control board 20 and the above-mentioned charging pile prompt device 10.

[0082] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0083] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0084] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A charging pile reminder device, characterized in that: The charging pile prompting device comprises: Tip light, Communication module, A micro control unit is connected to the warning light, and the micro control unit is connected to the communication module, and the micro control unit is used to connect to the main control board of the charging pile through the communication module.

2. The charging pile prompt device according to claim 1, characterized in that: The charging pile prompting device also includes: A card reading module is connected to the micro control unit.

3. The charging pile prompt device according to claim 2, characterized in that: The card reading module comprises: A coil, the coil being used to generate a coil electrical signal when sensing the proximity of a user card; A card reader chip is connected to the coil and the card reader chip is connected to the micro control unit.

4. The charging pile prompt device according to claim 3, characterized in that: The prompt light includes an RGB light strip.

5. The charging pile prompt device according to claim 4, characterized in that: The RGB light strip is arranged around the coil.

6. The charging pile prompt device according to claim 5, characterized in that: The charging pile prompting device also includes: A driving circuit, wherein the micro control unit is connected to the RGB light strip via the driving circuit.

7. The charging pile prompt device according to claim 1, characterized in that: The charging pile prompting device also includes: A buzzer is connected to the micro control unit.

8. The charging pile prompt device according to claim 1, characterized in that: The communication module includes an RS232 transceiver.

9. The charging pile prompt device according to claim 8, characterized in that: The charging pile prompting device also includes: A power conversion module is connected to the prompt light, the RS232 transceiver, and the micro control unit.

10. A charging pile, characterized in that: The charging pile comprises: The main control board of the charging pile; And, a charging pile reminder device as described in any one of claims 1-9.

Images