Intelligent alternating current charging pile

By integrating the control motherboard, SOC light board and card swiping module on the AC charging pile, the automatic lighting and real-time power display of the charging pile are realized, which solves the problem that existing charging piles are difficult to identify in an environment with insufficient light and that users cannot monitor the charging progress in real time, improving user experience and convenience.

CN119705157APending Publication Date: 2025-03-28CHERY AUTOMOBILE CO LTD
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Patent Information

Application Number
CN202510036127.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-09
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Existing AC charging piles are difficult to quickly identify by users at night or in poor lighting environments, and users cannot understand the vehicle's charging progress and power information in real time.

Method used

An intelligent AC charging pile is designed, equipped with a control motherboard, SOC light board and card swiping module. When the vehicle is close to the charging pile, the light bar will automatically light up. During the charging process, the vehicle battery capacity will be displayed through the SOC light panel, and the display will be updated in real time through information transmission.

Benefits of technology

The recognizability of charging piles in night or in poor lighting environments is improved. Users can easily find charging piles, and can understand the vehicle's battery power and charging status through the SOC lights of the charging pile, solving the problem that users find it difficult to monitor the charging progress in real time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of charging piles, and discloses an intelligent alternating current charging pile. Comprising a charging pile body, the lower surface of the charging pile body is fixedly connected with a cable head, the interior of the cable head is fixedly connected with a charging gun cable, the charging gun cable is electrically connected with the charging pile body, and the end, away from the cable head, of the charging gun cable is fixedly connected with a charging gun. A charging gun dustproof cover is embedded in the end, away from the charging gun cable, of the charging gun, and the charging gun dustproof cover is connected with the charging gun through a tying chain. The cable head is in threaded connection with a rear shell, and the interior of the rear shell is in threaded connection with a control mainboard through a fastening bolt. During actual use, by arranging the control mainboard and a card swiping module, when a vehicle gets close to the charging pile, a light bar of the charging pile body is lightened, so that the charging pile is higher in eye-catching performance at night or in an environment with poor light rays, and the charging pile is more convenient to use. A driver can find and find the charging pile conveniently and quickly, and identifiability is improved.
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Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to an intelligent AC charging pile. Background Art

[0002] Charging piles, also known as electric vehicle charging stations or electric vehicle power supply equipment, are devices that provide electric vehicles with electrical energy. It transfers electrical energy from the external power grid to the electric vehicle battery, allowing the electric vehicle to continue its battery life. The function of charging piles is similar to that of gas stations for traditional fuel vehicles, but it transfers electrical energy instead of fuel. According to different standards and classification methods, charging piles can be divided into many types. They are mainly divided into two types: AC charging piles and DC charging piles. AC charging piles are usually called "slow charging" and are suitable for home use. They are installed in places such as garages or parking lots and have a long charging time. DC charging piles are called "fast charging" and can directly charge the battery of electric vehicles. The charging time is shorter, generally between one and two hours. The function of AC charging piles is to charge electric vehicles with AC to meet their energy needs, enabling electric vehicles to store enough electricity to support their operation. They are generally installed indoors or outdoors. Indoor installation environments include ground garages and underground parking lots, and outdoor installation environments include ground open-air parking spaces. AC charging piles access power from the AC power grid and connect to the electric vehicle charging socket through their own charging guns to output energy.

[0003] Existing AC charging piles only have the function of charging. Charging-related information such as charging voltage and charging current are displayed on the built-in screen or not. There is no information transmission capability between the AC charging pile and the charging vehicle, and it is only used for charging. Users cannot know the charging progress, charging power and other information of the vehicle through the charging pile. Especially at night or in rainy environments, due to insufficient light, it is not easy for users to find the charging pile, which brings a lot of inconvenience to parking and charging. Summary of the invention

[0004] 1. Technical issues to be resolved In view of the shortcomings of the prior art, the present invention provides an intelligent AC charging pile. By setting a control mainboard and a card swiping module, when a vehicle approaches the charging pile, the light bar of the charging pile body lights up, making the charging pile more conspicuous at night or in a poorly lit environment. The driver can quickly and easily find and find the charging pile, increasing the recognizability. When the charging gun is inserted into the vehicle charging seat, the charging pile starts to charge the vehicle by setting a control mainboard, a SOC light board, and a card swiping module. Through a certain information transmission method, the battery power value of the vehicle is transmitted to the charging pile control mainboard. The charging pile SOC light board lights up the corresponding number of SOC lamp beads according to the instructions of the control mainboard to indicate the current battery power value of the vehicle. The SOC lamp beads light up in a cycle, indicating that the current vehicle is charging. The user does not need to unlock the vehicle and check the battery power information through the vehicle's instrument or screen. Instead, within a certain distance from the charging pile, the SOC light of the charging pile can know the current vehicle battery power and charging status, etc., solving the problem of insufficient light, difficulty for users to find charging piles, and many inconveniences for parking and charging.

[0005] (II) Technical solution In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a charging pile body, a Gland head is fixedly connected to the lower surface of the charging pile body, a charging gun cable is fixedly connected to the inside of the Gland head, and the charging gun cable is electrically connected to the charging pile body, an end of the charging gun cable away from the Gland head is fixedly connected to a charging gun, and the charging gun is electrically connected to the charging gun cable, an end of the charging gun away from the charging gun cable is embedded with a charging gun dust cover, and the charging gun dust cover is connected to the charging gun through a tether; The gland is connected to the rear shell through a thread, and the interior of the rear shell is threadedly connected to the control main board through a fastening bolt. The interior of the rear shell is provided with a groove, and the interior of the groove is connected to the light bar through a light bar buckle press-fit, and the side surface of the light bar buckle is sleeved with a buckle screw, the front surface of the rear shell is threadedly connected to the front shell through the front shell screw, and the front shell is connected to the light bar, and the interior of the front shell is threadedly connected to a rectangular SOC light board and a card swiping module through the SOC light board screw.

[0006] Through the above technical solution, the control mainboard is set to be bound to the user's vehicle. When the vehicle approaches the charging pile within a preset distance range, the signal sent by the vehicle itself can be used to communicate with the charging pile, and the light bar of the charging pile body automatically lights up. When the charging gun is inserted into the vehicle charging seat, the charging pile starts to charge the vehicle by setting the control mainboard, SOC light board, and card swiping module. Through a certain information transmission method, the battery power value of the vehicle is transmitted to the charging pile control mainboard. The charging pile SOC light board lights up the corresponding number of SOC lamp beads according to the instructions of the control mainboard, indicating the current battery power value of the vehicle. The SOC lamp beads light up in a cycle, indicating that the current vehicle is charging. The user does not need to unlock the vehicle and check the battery power information through the vehicle's instrument or screen. Instead, within a certain distance range from the charging pile, the current vehicle battery power and charging status can be known through the SOC light of the charging pile.

[0007] Preferably, a threaded hole is provided inside the front shell, and the threaded hole is threadedly connected to the front shell screw.

[0008] Through the above technical solution, the front housing and the rear housing can be disassembled and installed by using the front housing screws, so that the control mainboard in the device can be repaired conveniently.

[0009] Preferably, a U-shaped SOC lamp bead groove is provided in the middle portion of the front shell, and the U-shaped SOC lamp bead groove is engaged and connected with the SOC lamp bead.

[0010] Through the above technical solution, five SOC lamp beads can be installed in sequence inside the U-shaped SOC lamp bead slot. When one SOC lamp bead is lit, it means that the battery power of the vehicle is 20% or less. When two SOC lamp beads are lit, it means that the battery power of the vehicle is 40% or less. When three SOC lamp beads are lit, it means that the battery power of the vehicle is 60% or less. When four SOC lamp beads are lit, it means that the battery power of the vehicle is 80% or less. When five SOC lamp beads are lit, it means that the battery power of the vehicle is 100% or less. The SOC lamp beads are lit in the order of arrangement.

[0011] Preferably, the front surface of the front shell is snap-connected with a front cover via a snap-fit ​​structure, and the front cover is located outside the charging pile body.

[0012] Through the above technical solution, the front cover is used for the visual shape of the charging pile body, the SOC lamp beads are electrically connected and evenly distributed and fixed on the SOC lamp board, and the light of the SOC lamp beads enters the environment outside the charging pile body through the U-shaped SOC lamp bead groove of the front shell and the U-shaped light-transmitting hole of the front cover 0.

[0013] Preferably, a U-shaped light-transmitting hole is provided in the middle portion of the front cover, and the size of the U-shaped light-transmitting hole is the same as that of the U-shaped SOC lamp bead groove.

[0014] Through the above technical solution, the U-shaped light-transmitting hole is utilized to allow the SOC lamp beads to pass through the interior of the U-shaped light-transmitting hole, so that the bright light emitted by the SOC lamp beads can enter the environment outside the charging pile body.

[0015] Preferably, the U-shaped SOC lamp bead groove is arranged in a convex shape, and the convex part of the U-shaped SOC lamp bead groove passes through the interior of the U-shaped light-transmitting hole.

[0016] Through the above technical solution, it is convenient for the SOC lamp beads to pass through the interior of the U-shaped light-transmitting hole, so that the U-shaped light-transmitting hole can cover the SOC lamp board for protection, and at the same time will not affect the normal illumination of the SOC lamp beads.

[0017] Preferably, the front shell is made of a transparent plastic material, and a light diffuser is added to the transparent plastic material, and the front mask is made of a non-transparent plastic material.

[0018] Through the above technical solution, the transparent plastic material of the front shell is used to transmit the light of the SOC lamp beads on the front SOC lamp board to the external environment, while the non-transparent plastic material of the front mask is used to prevent the light outside the front U-shaped light transmission hole from transmitting to the external environment.

[0019] Preferably, an emergency stop switch is provided on the side surface of the charging pile body, and a product label is affixed to the side surface of the charging pile body, and the product label is located below the emergency stop switch.

[0020] Through the above technical solution, when the user does not need to charge, the user can press the emergency stop switch to stop the charging pile body from charging the new energy vehicle.

[0021] Preferably, the front cover is used for the visual shape of the charging pile body.

[0022] Through the above technical solution, the front cover is used to improve the overall aesthetics of the charging pile body, and the visual appearance is relatively high-quality.

[0023] Preferably, five SOC lamp beads are evenly arranged along the long side in the middle of the rectangular SOC lamp board, and the SOC lamp beads are electrically connected to the SOC lamp board.

[0024] Through the above technical solution, five SOC lamp beads are lit, indicating that the battery power of the vehicle is 100% or less. The SOC lamp beads are lit in order of arrangement. When the battery power is not full, that is, less than 100%, for example 60%, the first, second, and third SOC lamp beads are lit, and the fourth and fifth SOC lamp beads are lit in a cycle, indicating that the vehicle is charging. When the battery power is 100%, all SOC lamp beads are lit and no longer light up in a cycle, indicating that the vehicle battery is fully charged.

[0025] Compared with the prior art, the present invention provides a smart AC charging pile, which has the following beneficial effects: 1. In actual use, the present invention sets a control main board and a card swiping module. When a vehicle approaches a charging pile, the light bar of the charging pile body lights up, making the charging pile more conspicuous at night or in a poorly lit environment. The driver can quickly and easily discover and find the charging pile, thereby increasing recognizability.

[0026] 2. In the present invention, when the charging gun is inserted into the vehicle charging seat, the charging pile starts to charge the vehicle by setting the control mainboard, SOC light board, and card swiping module. Through a certain information transmission method, the battery power value of the vehicle is transmitted to the charging pile control mainboard. The charging pile SOC light board lights up the corresponding number of SOC lamp beads according to the instructions of the control mainboard, indicating the current battery power value of the vehicle. The SOC lamp beads light up cyclically, indicating that the current vehicle is charging. The user does not need to unlock the vehicle and check the battery power information through the vehicle's instrument or screen. Instead, within a certain distance range from the charging pile, the current vehicle battery power and charging status can be known through the SOC light of the charging pile. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the explosion structure of the charging pile body of the present invention; Figure 4 This is a schematic diagram of the light bar installation structure of the present invention; Figure 5 This is a schematic diagram of the SOC lamp board installation structure of the present invention.

[0028] Among them: 1. Charging pile body; 2. Gland head; 3. Charging gun cable; 4. Charging gun; 5. Charging gun dust cover; 6. Emergency stop switch; 7. Product label; 8. Rear shell; 9. Front shell; 10. Front cover; 11. Control main board; 12. U-shaped SOC lamp bead slot; 13. Front shell screw; 14. U-shaped light hole; 15. Light bar; 16. Light bar buckle; 17. Buckle screw; 18. SOC light board; 19. Card swiping module; 20. SOC light board screw. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Embodiment 1: See also Figure 1-5A smart AC charging pile comprises a charging pile body 1, a Gland head 2 is fixedly connected to the lower surface of the charging pile body 1, a charging gun cable 3 is fixedly connected to the inside of the Gland head 2, and the charging gun cable 3 is electrically connected to the charging pile body 1, a charging gun 4 is fixedly connected to the end of the charging gun cable 3 away from the Gland head 2, and the charging gun 4 is electrically connected to the charging gun cable 3, a charging gun 4 is embedded with a charging gun dust cover 5 at one end away from the charging gun cable 3, and the charging gun dust cover 5 is connected to the charging gun 4 through a tether, an emergency stop switch 6 is provided on the side surface of the charging pile body 1, a product label 7 is affixed to the side surface of the charging pile body 1, and the product label 7 is located below the emergency stop switch 6, when the user does not need to charge, the emergency stop switch can be pressed to stop the charging pile body from charging the new energy vehicle.

[0031] One end of the charging gun cable 3 is electrically connected to the control main board 11 and then passes through the central cylindrical hole of the gland 2 and is fastened to the rear shell 8 of the charging pile through the threaded pair of the gland 2. The other end of the charging gun cable 3 is electrically connected to the charging gun 4. After the user inserts the charging gun 4 into the vehicle charging seat, the charging pile can be started to charge the vehicle by contacting the card swiping module 19 inside the front shell 9 with the NFC card.

[0032] Embodiment 2: See also Figure 1-5 The gland 2 is connected to the rear shell 8 through a thread, and the interior of the rear shell 8 is threadedly connected to the control main board 11 through a fastening bolt. A groove is provided inside the rear shell 8, and the interior of the groove is press-fitted with a light bar 15 through a light bar buckle 16. When the light bar 15 of the charging pile body 1 is lit, the charging pile is more conspicuous at night or in a poorly lit environment.

[0033] By setting the control main board 11 to be bound with the user's vehicle, when the vehicle approaches the charging pile within a preset distance range, the signal emitted by the vehicle itself can be used to communicate with the charging pile, and the light bar 15 of the charging pile body 1 will automatically light up.

[0034] Embodiment three: See also Figure 1-5The side surface of the light bar buckle 16 is sleeved with a buckle screw 17, the front surface of the rear shell 8 is threadedly connected with the front shell 9 through the front shell screw 13, and the front shell 9 is connected to the light bar 15. The interior of the front shell 9 is provided with a threaded hole, and the threaded hole is threadedly connected with the front shell screw 13. The front shell screw 13 is used to make it possible to disassemble and install the front shell 9 and the rear shell 8, which is convenient for repairing the control mainboard 11 in the device. The interior of the front shell 9 is threadedly connected with a rectangular SOC light board 18 and a card swiping module 19 through an SOC light board screw 20. The middle part of the front shell 9 is provided with a U The U-shaped SOC lamp bead slot 12 is provided, and the U-shaped SOC lamp bead slot 12 is connected with the SOC lamp bead in an inlaid manner. The front surface of the front shell 9 is connected with the front cover 10 through a buckle structure, and the front cover 10 is located on the outside of the charging pile body 1. The front cover 10 is used for the visual shape of the charging pile body 1. The middle part of the front cover 10 is provided with a U-shaped light-transmitting hole 14, and the size of the U-shaped light-transmitting hole 14 is the same as that of the U-shaped SOC lamp bead slot 12. The U-shaped SOC lamp bead slot 12 is convex, and the convex part of the U-shaped SOC lamp bead slot 12 passes through the inside of the U-shaped light-transmitting hole 14. The middle part of the rectangular SOC lamp panel 18 is provided with a U-shaped light-transmitting hole 14. There are five SOC lamp beads evenly arranged on the side, and the SOC lamp beads are electrically connected to the SOC lamp board 18. When one SOC lamp bead is lit, it means that the battery power of the vehicle is 20% or less, and when two SOC lamp beads are lit, it means that the battery power of the vehicle is 40% or less; when three SOC lamp beads are lit, it means that the battery power of the vehicle is 60% or less, and when four SOC lamp beads are lit, it means that the battery power of the vehicle is 80% or less, and when five SOC lamp beads are lit, it means that the battery power of the vehicle is 100% or less. The SOC lamp beads are lit in the order of arrangement. When the battery power is not fully charged, it is not When the battery level is 100%, for example 60%, the first, second and third SOC lamp beads are lit, and the fourth and fifth SOC lamp beads are lit in a cycle, indicating that the vehicle is charging. When the battery level is 100%, all SOC lamp beads are lit and no longer light in a cycle, indicating that the vehicle battery is fully charged. The front shell body 9 is made of transparent plastic material, and a light diffuser is added to the transparent plastic material to transmit the light of the SOC lamp beads on the front SOC lamp board 18 to the external environment. The front mask 10 is made of non-transparent plastic material to prevent light outside the front U-shaped light-transmitting hole 14 from transmitting to the external environment.

[0035] After the user inserts the charging gun 4 into the vehicle charging seat, the user can start the charging pile to charge the vehicle by contacting the card swiping module 19 inside the front shell 9 with the NFC card. By setting the control motherboard 11 to bind with the user's vehicle, the battery power value of the vehicle is transmitted to the control motherboard 11 of the charging pile through a certain information transmission method. The SOC lamp board 18 of the charging pile lights up the corresponding number of SOC lamp beads according to the instructions of the control motherboard 11. The five SOC lamp beads correspond to the battery power range of 0% to 100%. Each SOC lamp bead represents 20% of the power. One SOC lamp bead is lit, which means that the battery power of the vehicle is 20% or less. Two SOC lamp beads are lit. , indicating that the vehicle battery power is 40% or less, three SOC lamp beads are lit, indicating that the vehicle battery power is 60% or less, four SOC lamp beads are lit, indicating that the vehicle battery power is 80% or less; five SOC lamp beads are lit, indicating that the vehicle battery power is 100% or less, the SOC lamp beads are lit in order of arrangement. When the battery power is not full, that is, less than 100%, for example 60%, the first, second, and third SOC lamp beads are lit, and the fourth and fifth SOC lamp beads are lit in cycle, indicating that the vehicle is charging. When the battery power is 100%, all SOC lamp beads are lit and no longer light up in a cycle, indicating that the vehicle battery is fully charged.

[0036] During use, the control motherboard 11 is set to be bound to the user's vehicle. When the vehicle approaches the charging pile within a preset distance range, the signal emitted by the vehicle itself can be used to communicate with the charging pile, and the light bar 15 of the charging pile body 1 automatically lights up. After the user inserts the charging gun 4 into the vehicle charging seat, the charging pile can be started to charge the vehicle by contacting the card swiping module 19 inside the front shell 9 with the NFC card. The control motherboard 11 is set to be bound to the user's vehicle, and the battery power value of the vehicle is transmitted to the control motherboard 11 of the charging pile through some information transmission method. The SOC light board 18 of the charging pile follows the instructions of the control motherboard 11. The user does not need to unlock the vehicle and can view the battery power information through the vehicle's instrument or screen. Instead, within a certain distance from the charging pile, the current vehicle battery power and charging status can be known through the SOC light of the charging pile. The corresponding number of SOC lamp beads is lit. The five SOC lamp beads correspond to the battery power range of 0% to 100%. Each SOC lamp bead represents 20% of the power. One SOC lamp bead is lit, which means that the vehicle battery power is 20% or less. Two SOC lamp beads are lit, which means that the vehicle battery power is 40% or less. Three SOC lamp beads are lit, which means that the vehicle battery power is 60% or more. If four SOC lamp beads are lit, it means the battery power of the vehicle is 80% or less; if five SOC lamp beads are lit, it means the battery power of the vehicle is 100% or less. The SOC lamp beads are lit in order. When the battery power is not full, that is, less than 100%, for example, 60%, the first, second, and third SOC lamp beads are lit, and the fourth and fifth SOC lamp beads are lit in a cycle, indicating that the vehicle is charging. When the battery power is 100%, all SOC lamp beads are lit and no longer light up in a cycle, indicating that the vehicle battery is fully charged.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart AC charging pile, comprising a charging pile body (1), characterized in that: The lower surface of the charging pile body (1) is fixedly connected to a Gland head (2), the interior of the Gland head (2) is fixedly connected to a charging gun cable (3), and the charging gun cable (3) is electrically connected to the charging pile body (1); an end of the charging gun cable (3) away from the Gland head (2) is fixedly connected to a charging gun (4), and the charging gun (4) is electrically connected to the charging gun cable (3); an end of the charging gun (4) away from the charging gun cable (3) is embedded with a charging gun dust cover (5), and the charging gun dust cover (5) is connected to the charging gun (4) via a tether; The gland head (2) is threadedly connected to the rear housing (8), the interior of the rear housing (8) is threadedly connected to the control main board (11) via a fastening bolt, the interior of the rear housing (8) is provided with a groove, the interior of the groove is press-fitted with a light bar (15) via a light bar buckle (16), the side surface of the light bar buckle (16) is sleeved with a buckle screw (17), the front surface of the rear housing (8) is threadedly connected to the front housing (9) via a front housing screw (13), and the front housing (9) is connected to the light bar (15), and the interior of the front housing (9) is threadedly connected to a rectangular SOC light board (18) and a card swiping module (19) via an SOC light board screw (20).

2. The intelligent AC charging pile according to claim 1, characterized in that: A threaded hole is provided inside the front housing (9), and the threaded hole is threadedly connected to the front housing screw (13).

3. The intelligent AC charging pile according to claim 1, characterized in that: A U-shaped SOC lamp bead groove (12) is provided in the middle portion of the front housing (9), and the U-shaped SOC lamp bead groove (12) is engaged and connected with the SOC lamp bead.

4. The intelligent AC charging pile according to claim 1, characterized in that: The front surface of the front shell (9) is snap-connected to a front cover (10) via a snap-fit ​​structure, and the front cover (10) is located outside the charging pile body (1).

5. The intelligent AC charging pile according to claim 1, characterized in that: A U-shaped light-transmitting hole (14) is provided in the middle portion of the front cover (10), and the size of the U-shaped light-transmitting hole (14) is the same as that of the U-shaped SOC lamp bead groove (12).

6. The intelligent AC charging pile according to claim 1, characterized in that: The U-shaped SOC lamp bead groove (12) is arranged in a convex shape, and the convex part of the U-shaped SOC lamp bead groove (12) penetrates the interior of the U-shaped light-transmitting hole (14).

7. The intelligent AC charging pile according to claim 1, characterized in that: The front shell (9) is made of a transparent plastic material, and a light diffuser is added to the transparent plastic material; the front mask (10) is made of a non-transparent plastic material.

8. The intelligent AC charging pile according to claim 1, characterized in that: An emergency stop switch (6) is provided on the side surface of the charging pile body (1), and a product label (7) is affixed to the side surface of the charging pile body (1), and the product label (7) is located below the emergency stop switch (6).

9. The intelligent AC charging pile according to claim 1, characterized in that: The front cover (10) is used for the visual shape of the charging pile body (1).

10. The intelligent AC charging pile according to claim 1, characterized in that: Five SOC lamp beads are evenly arranged along the long sides in the middle of the rectangular SOC lamp board (18), and the SOC lamp beads are electrically connected to the SOC lamp board (18).

Citation Information

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