Split type one-pile two-gun direct current charging pile

Abstract

This utility model discloses a split-type dual-gun DC charging pile, relating to the field of vehicle charging technology. It includes a base; a DC charging box body disposed in the middle of the base; charging pile bodies symmetrically disposed on both sides of the DC charging box body and located at the top of the base; connecting wires connecting the DC charging box body and the two charging pile bodies; charging guns symmetrically disposed on both sides of the charging pile bodies; charging wires connecting the charging pile bodies and the charging guns; a separate control mechanism disposed inside the DC charging box body; heat dissipation components disposed on both sides of the interior of the DC charging box body; and a power module and a control module disposed inside the DC charging box body. This utility model has a reasonable and reliable structure. Through the coordinated design of the separate control mechanism and heat dissipation components, the operational stability, flexibility, and durability of the split-type dual-gun DC charging pile are improved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle charging technology, specifically to a split-type DC charging pile with two charging guns. Background Technology

[0002] With increasing global emphasis on environmental protection and sustainable development, the penetration rate of electric vehicles is rising year by year, leading to a growing demand for charging infrastructure, especially efficient and flexible DC charging stations. Split-type dual-gun DC charging stations not only meet the needs of multiple vehicles charging simultaneously and rapidly in scenarios such as urban public charging stations and large parking lots, but also greatly simplify the design of charging stations and improve system flexibility and maintainability by centralizing power conversion, distribution, and management in the main charging cabinet.

[0003] While existing split-type DC electric vehicle charging stations are generally equipped with intelligent systems and control programs, enabling core functions such as dynamic power distribution, remote monitoring, and automatic charging scheduling, thus improving charging efficiency and operational flexibility, a failure in the intelligent system often leads to a cascading shutdown of the entire system. Not only do intelligent functions like dynamic power distribution and remote control fail, but even basic operations such as charging start / stop and safety protection may fail to execute properly, rendering the charging station completely unusable. This disrupts the operational continuity of the charging station and causes significant inconvenience to users urgently needing to recharge.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In response to the problems in related technologies, this utility model proposes a split-type DC charging pile with two guns to overcome the aforementioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows: A split-type dual-gun DC charging pile includes a base; a DC charging box body located in the middle of the base; charging pile bodies symmetrically arranged on both sides of the DC charging box body and located on top of the base; connecting wires connecting the DC charging box body and the two charging pile bodies; charging guns symmetrically arranged on both sides of the charging pile body; charging wires connecting the charging pile body and the charging guns; a separate control mechanism located inside the DC charging box body; and the separate control mechanism dynamically adjusts the output ratio of the power module inside the DC charging box body to adapt to the differentiated power requirements when charging with both guns simultaneously; heat dissipation components located on both sides inside the DC charging box body; and the heat dissipation components realize air circulation of the core heat-generating components inside the DC charging box body to quickly dissipate the large amount of heat generated during dual-gun charging; a power module and a control module located inside the DC charging box body.

[0007] Furthermore, to ensure that the power distribution command is rigidly executed and to achieve true fault degradation capability, the sub-control mechanism includes a mounting bracket installed inside the DC charging box body. The inner circumference of the mounting bracket is symmetrically equipped with stationary contacts, and two sets of stationary contacts are connected to connecting wires respectively. A driven component is fitted on the inner circumference of the stationary contacts, and a driving component is fitted on the top of the driven component. The driven component includes a cross bracket at the top of the mounting bracket, a rotating shaft inserted in the middle of the cross bracket, a rotating arm at the bottom of the rotating shaft, and several moving contacts that cooperate with the stationary contacts on the outer side of the rotating arm. A cross connecting rod is installed on the outer circumference of the top of the rotating shaft, and a limit rod is installed at the top of the cross connecting rod. A disc is installed on the outer circumference of the rotating shaft and at the top of the cross connecting rod, and the top of the disc has several circular grooves arranged in a circle. The driving component includes a U-shaped support frame mounted on the top of the mounting bracket. A servo motor is mounted on the top of the U-shaped support frame. The output end of the servo motor passes through the U-shaped support frame and is connected to a rotating shaft. A lever that cooperates with a limit rod is fitted on the outer circumference of the rotating shaft. A circular block that cooperates with a circular groove is fitted on the outer circumference of the rotating shaft and at the bottom of the lever.

[0008] Furthermore, in order to achieve modular layout and compact design, save installation space and improve assembly efficiency, the bottom of the power module is connected to the moving contact via a DC wire, and the DC wire is wound around the outer circumference of the rotating shaft and cooperates with the rotating arm; the top of the mounting bracket is provided with a limiting post that cooperates with the DC wire.

[0009] Furthermore, to prevent the connecting wires from vibrating during equipment operation, symmetrical mounting brackets that cooperate with the connecting wires are provided at the bottom of the DC charging box body.

[0010] Furthermore, in order to achieve distributed control of the charging piles, two sets of gaps are formed between the two sets of stationary contact pieces, one set being smaller than the diameter of the rotating arm and the other set being larger than the diameter of the rotating arm.

[0011] Furthermore, to prevent heat from accumulating inside the box and forming localized high-temperature zones, and to ensure the continuous and stable operation of the dual charging guns, the heat dissipation components include cooling fans located on both sides inside the DC charging box body, with the two sets of cooling fans located at the inner top and inner bottom of the DC charging box body, respectively; louvered protective plates are installed on the outer side of the cooling fans.

[0012] Furthermore, to enhance the safety and reliability of the DC charging box in practical applications, an emergency stop knob is provided on one side of the DC charging box, and the emergency stop knob is connected to the power module.

[0013] Furthermore, in order to improve the intelligence level of DC charging piles, a door panel is installed on one side of the main body of the DC charging box, and a display is installed on one side of the door panel.

[0014] The beneficial effects of this utility model are as follows: 1. This utility model features a reasonable and reliable structure and simple operation. Through the coordinated design of the sub-control mechanism and heat dissipation components, it enhances the operational stability, flexibility, and durability of the split-type dual-gun DC charging pile. The sub-control mechanism uses a rotating arm to precisely switch between moving and stationary contacts, coupled with a servo motor for efficient drive. This dynamically allocates the charging power of the two guns and flexibly switches the power supply state, ensuring a stable charging experience for different vehicles. Furthermore, the physical contact-based allocation avoids the interference risks associated with purely electronic control, achieving fault degradation capability and ensuring uninterrupted core charging functions. The heat dissipation components utilize cooling fans distributed vertically on both sides of the DC charging box to create convective air circulation, quickly dissipating the large amount of heat generated by the high-power charging of the dual piles. This effectively prevents component performance degradation or shutdown caused by localized high temperatures within the DC charging box. Simultaneously, the louvered protective plates on the outside of the cooling fans, without obstructing ventilation, provide dust and water protection, block debris, prevent component corrosion and damage, extend equipment life, and reduce maintenance costs. Overall, this provides a reliable guarantee for the efficient and continuous operation of the charging pile.

[0015] 2. This utility model, through the setting of a separate control mechanism, can achieve dynamic and precise allocation of charging power between dual charging stations to adapt to different needs. Utilizing a rotating arm to drive the precise contact switching between the moving contact piece and two sets of stationary contact pieces, coupled with the efficient drive of a servo motor, it can flexibly switch the power supply state between the two charging stations, ensuring a stable charging experience for different vehicles. At the same time, the physical contact-based mechanical allocation method fundamentally avoids the potential for interference inherent in purely electronic control, ensuring that power allocation commands are rigidly executed and achieving true fault degradation capability.

[0016] 3. This utility model, through the installation of heat dissipation components, provides efficient and stable heat dissipation for the DC charging box body. The cooling fans on both sides, at the top and bottom, form an upward and downward convection air circulation path, which can fully cover all the core heat-generating components inside the DC charging box body. The large amount of heat generated when both charging piles are charging at high power simultaneously can be quickly carried away and discharged from the DC charging box body, preventing heat from accumulating inside the DC charging box body and forming local high-temperature zones, thus ensuring the continuous and stable operation of the dual charging guns. At the same time, the louvered protective plate on the outside of the cooling fans can effectively prevent external dust, rainwater, and debris from entering the DC charging box body without obstructing airflow. This not only prevents dust from adhering to the fan blades or the surface of heat-generating components, affecting heat dissipation efficiency, but also prevents moisture corrosion from causing electrical faults, extending the service life of the cooling fans and the core components inside the DC charging box body, and reducing the frequency and cost of later maintenance. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is one of the structural schematic diagrams of a split-type DC charging pile with two guns according to an embodiment of the present utility model; Figure 2 This is the second structural schematic diagram of a split-type DC charging pile with two guns according to an embodiment of the present utility model; Figure 3 This is one of the partial structural schematic diagrams of a split-type DC charging pile with two guns according to an embodiment of the present utility model; Figure 4 yes Figure 3 Enlarged view of point A in the image; Figure 5 This is a second partial structural schematic diagram of a split-type DC charging pile with two guns according to an embodiment of the present utility model; Figure 6 This is the third partial structural schematic diagram of a split-type DC charging pile with two guns according to an embodiment of the present utility model; Figure 7 yes Figure 6 Enlarged view of point B in the image; Figure 8 This is a partial plan view of a split-type DC charging pile with two guns according to an embodiment of the present utility model.

[0019] In the picture: 1. Base; 2. DC charging box body; 3. Charging pile body; 4. Connecting wire; 5. Charging gun; 6. Charging wire; 7. Sub-control mechanism; 701. Mounting bracket; 702. Stationary contact piece; 703. Follower; 7031. Cross bracket; 7032. Rotating shaft; 7033. Cross linkage; 7034. Limiting rod; 7035. Disc; 7036. Circular groove; 7037. Rotating arm; 7038 704. Moving contact piece; 704. Driving component; 7041. U-shaped support frame; 7042. Servo motor; 7043. Rotating shaft; 7044. Circular block; 7045. Lever; 8. Heat dissipation assembly; 801. Heat dissipation fan; 802. Louvered protective plate; 9. Power module; 10. Control module; 11. DC wire; 12. Limit post; 13. Fixing base; 14. Emergency stop knob; 15. Display; 16. Door panel. Detailed Implementation

[0020] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0021] According to an embodiment of the present invention, a split-type DC charging pile with two charging guns is provided.

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-8 As shown, a split-type dual-gun DC charging pile according to an embodiment of the present invention includes a base 1; a DC charging box body 2, disposed in the middle of the base 1; a charging pile body 3, symmetrically disposed on both sides of the DC charging box body 2 and located on the top of the base 1; a connecting wire 4, connecting the DC charging box body 2 and the two sets of charging pile bodies 3; charging guns 5, symmetrically disposed on both sides of the charging pile body 3; a charging wire 6, connecting the charging pile body 3 and the charging guns 5; a separate control mechanism 7, disposed inside the DC charging box body 2; and the separate control mechanism 7 realizes dynamic adjustment of the output ratio of the power module inside the DC charging box body 2 to adapt to the differentiated power requirements when charging with two guns simultaneously; a heat dissipation component 8, respectively disposed on both sides inside the DC charging box body 2, and the heat dissipation component 8 realizes air circulation of the core heat-generating components inside the DC charging box body 2 to quickly dissipate the large amount of heat generated during dual-gun charging; a power module 9 and a control module 10, respectively disposed inside the DC charging box body 2.

[0023] By utilizing the aforementioned technical solutions and through the collaborative design of the sub-control mechanism 7 and the heat dissipation component 8, the operational stability, flexibility, and durability of the split-type dual-gun DC charging pile are improved. The sub-control mechanism 7, using a rotating arm 7037 to precisely switch between the moving contact 7038 and the stationary contact 702, coupled with a servo motor 7042 for efficient drive, can dynamically allocate charging power between the two guns and flexibly switch power supply states, ensuring a stable charging experience for different vehicles. Furthermore, the physical contact-based allocation avoids the interference risks associated with purely electronic control, achieving fault degradation capability and ensuring uninterrupted core charging functions. The heat dissipation component 8, through the cooling fans 801 distributed vertically and horizontally on both sides inside the DC charging box body 2, forms a convective air circulation, quickly dissipating the large amount of heat generated by the high-power charging of the dual piles, effectively preventing component performance degradation or shutdown caused by localized high temperatures inside the DC charging box body 2. Simultaneously, the louvered protective plate 802 on the outside of the cooling fans 801, without obstructing ventilation, can prevent dust and water damage, block debris, prevent component corrosion and damage, extend equipment life, and reduce maintenance costs, providing a reliable guarantee for the efficient and continuous operation of the charging pile.

[0024] Specifically, the control module 10 is equipped with a human-machine interface and a PLC (programmable logic controller). The human-machine interface is the interaction interface between the operator and the automation system. Its main function is to display the real-time operating status and the input of control commands. The PLC is used to execute specific control tasks, such as switch and sensor signal acquisition and processing.

[0025] It should be noted that the DC charging box body 2 is mainly composed of a power module 9, a control module 10, a power conversion module, a charging interface module, a safety protection module, a display 15, and a communication module.

[0026] The control module 10 is the core component, responsible for coordinating the work of various parts, receiving user commands such as starting or stopping charging and vehicle BMS (Battery Management System) information, and controlling the charging process. The power conversion module converts the AC power from the grid into the DC power required by the vehicle battery, while adjusting the voltage and current to match the battery's needs. The charging interface module includes a charging gun and a socket, which is the physical interface connecting the charging pile and the vehicle, and has a built-in safety lock and signal terminals. The display 15 is used for user operation and information display. The safety protection module covers overcurrent, overvoltage, leakage, and overtemperature protection functions to ensure charging safety. The communication module realizes data interaction between the charging pile, the backend system, and the vehicle.

[0027] The user initiates a charging request through the display 15. The charging pile shakes hands with the vehicle's BMS via the communication module to confirm the battery parameters. Based on the BMS information, the control module 10 instructs the power conversion module to convert the grid AC power into a suitable DC power. The current is input to the vehicle battery through the charging interface module. At the same time, the protection module monitors the charging status in real time. When charging is complete or an abnormality is encountered, the sub-control mechanism 7 cuts off the output and ends the charging process.

[0028] In one embodiment, the sub-control mechanism 7 includes a mounting bracket 701 disposed inside the DC charging box body 2. Static contact pieces 702 are symmetrically arranged on the inner circumference of the mounting bracket 701, and the two sets of static contact pieces 702 are respectively connected to the connecting wires 4. A follower 703 is provided on the inner circumference of the static contact piece 702, and a driving member 704 is provided on the top of the follower 703. The follower 703 includes a cross bracket 7031 disposed at the top of the mounting bracket 701, a rotating shaft 7032 inserted in the middle of the cross bracket 7031, a rotating arm 7037 disposed at the bottom of the rotating shaft 7032, and a plurality of moving contacts 7038 disposed on the outer side of the rotating arm 7037 to cooperate with the stationary contact 702; a cross connecting rod 7033 disposed on the outer circumferential wall of the top of the rotating shaft 7032, and a limit rod 7034 disposed at the top of the cross connecting rod 7033; a disc 7035 disposed on the outer circumferential wall of the rotating shaft 7032 and at the top of the cross connecting rod 7033, and a plurality of circular grooves 7036 arranged in a circle are opened at the top of the disc 7035. The drive unit 704 includes a U-shaped support frame 7041 mounted on the top of the mounting bracket 701. A servo motor 7042 is mounted on the top of the U-shaped support frame 7041. The output end of the servo motor 7042 passes through the U-shaped support frame 7041 and is connected to a rotating shaft 7043. A lever 7045 that cooperates with a limit rod 7034 is fitted on the outer circumference of the rotating shaft 7043. A circular block 7044 that cooperates with a circular groove 7036 is fitted on the outer circumference of the rotating shaft 7043 and at the bottom of the lever 7045. This ensures that the power distribution command is rigidly executed, achieving true fault degradation capability.

[0029] It should be noted that both the stationary contact 702 and the moving contact 7038 use silver metal oxide composite material. This material, with silver metal oxide composite material as the matrix, has excellent conductivity. Combined with the contact design of the moving contact 7038 and the stationary contact 702 and the powerful pressure mechanism, it can form extremely low contact resistance, stably carrying the large current during dual-pile fast charging and reducing contact heat generation. At the same time, its surface oxide film has outstanding high-temperature resistance, effectively resisting arc erosion when the contacts are switched on and off. Its hardness far exceeds that of pure silver, resulting in slow wear and an extremely long lifespan, making it suitable for high-frequency switching requirements. In addition, the circuit on / off state is directly determined by the mechanical position, making the status intuitive, with strong anti-interference capabilities, and ensuring long-term stable conductivity.

[0030] The specific working principle of the sub-control mechanism 7 is as follows: When it is necessary to switch the dual-gun power supply state or adjust the power distribution, the servo motor 7042 starts, and its output end drives the rotating shaft 7043 to rotate. The rotating shaft 7043 synchronously drives the lever 7045 on the outer circumference wall and the circular block 7044 to rotate together. During the rotation of the lever 7045, it contacts the limit rod 7034 of the driven member 703, pushing it to achieve intermittent rotation. The torque is transmitted to the rotating shaft 7032 through the cross link 7033, causing the rotating shaft 7032 to rotate precisely around the central axis of the cross bracket 7031. The rotating arm 7037 at the bottom of the rotating shaft 7032 rotates synchronously with it, driving the moving contact piece 7038 on the outer side to move along the circumferential trajectory and complete the contact switching with the stationary contact piece 702 arranged on the inner wall of the mounting bracket 701. When the moving contact 7038 contacts the left stationary contact 702, the left charging pile body 3 is powered through the connecting wire 4; when it contacts the right stationary contact 702, the right charging pile body 3 starts to supply power, thereby realizing flexible switching between dual-gun power supply states.

[0031] If power needs to be supplied to both charging pile bodies 3 at the same time, the moving contact 7038 will contact the stationary contact 702 on both sides simultaneously, and the power will be evenly distributed through physical connection to ensure stable output when charging both guns at the same time.

[0032] In one embodiment, for the power module 9, the bottom of the power module 9 is connected to the moving contact 7038 via a DC wire 11, and the DC wire 11 is wound around the outer circumference of the rotating shaft 7032 and cooperates with the rotating arm 7037; the top of the mounting bracket 701 is provided with a limiting post 12 that cooperates with the DC wire 11. This facilitates modular layout and compact design, saves installation space, and improves assembly efficiency.

[0033] In one embodiment, for the DC charging box body 2 described above, symmetrically arranged fixing seats 13 are provided at the bottom inside the DC charging box body 2 to cooperate with the connecting wires 4. This prevents the connecting wires 4 from vibrating during equipment operation.

[0034] In one embodiment, for the DC charging box body 2 described above, the two sets of gaps formed between the two sets of stationary contact pieces 702 are such that one set is smaller than the diameter of the rotating arm 7037, and the other set is larger than the diameter of the rotating arm 7037. This achieves distributed control of the charging pile.

[0035] In one embodiment, the heat dissipation assembly 8 includes two cooling fans 801 respectively disposed on both sides inside the DC charging box body 2, with the two sets of cooling fans 801 located at the inner top and inner bottom of the DC charging box body 2, respectively; a louvered protective plate 802 is provided on the outer side of the cooling fans 801. This prevents heat from accumulating inside the box and forming a local high-temperature zone, ensuring the continuous and stable operation of the dual charging guns of the charging pile.

[0036] The specific working principle of the heat dissipation component 8 is as follows: When the DC charging box body 2 starts working, the heat dissipation component 8 automatically starts. The cooling fan 801 located at the inner top exhausts air outward, and the cooling fan 801 located at the inner bottom draws air inward, forming a vertical convection air circulation path. External cold air enters the box through the louvered protective plate 802 outside the bottom cooling fan 801. When it flows past the heat-generating components, it absorbs heat and becomes hot air. It is then carried away by the top cooling fan 801 and discharged outside the box through the top louvered protective plate 802, thereby quickly removing the heat accumulated inside the box and reducing the overall temperature.

[0037] Meanwhile, the louvered protective plate 802 has an inclined blade structure, which can effectively block rainwater, dust and debris from entering the box without obstructing air circulation. This prevents dust from adhering to the fan blades or the surface of the heat-generating components and affecting the heat dissipation efficiency. It also prevents water vapor corrosion from causing electrical short circuits, ensuring the long-term stable operation of the cooling fan 801 and providing continuous heat dissipation protection for the equipment during dual-gun high-power charging.

[0038] In one embodiment, the DC charging box body 2 is provided with an emergency stop knob 14 on one side, and the emergency stop knob 14 is connected to the power module 9. This enhances the safety and reliability of the DC charging box body 2 in practical applications.

[0039] In one embodiment, the DC charging box body 2 has a door panel 16 on one side and a display 15 on one side of the door panel 16. This improves the intelligence level of the DC charging pile.

[0040] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0041] like Figures 1-8 As shown, in practical applications, the control module 10 is electrically connected in sequence to the charging pile body 3, the servo motor 7042, the cooling fan 801, the power module 9, the emergency stop knob 14, and the display 15.

[0042] When not activated, the rotating arm 7037 is in its initial state, located in one of the gaps formed between the two sets of stationary contact pieces 702, which is larger than the diameter of the rotating arm 7037, and does not contact the stationary contact pieces 702. When power needs to be supplied to either side of the charging pile body 3, the user scans the QR code on the display 15 and follows the operation steps to supply power to one of the charging pile bodies 3 closest to the vehicle. After the user confirms, this signal is transmitted to the control module 10. The control module 10 controls the servo motor 7042 to start, controlling the rotating arm 7037 to rotate, causing the outer moving contact piece 7038 to move along a circumferential trajectory and contact the stationary contact piece 702 arranged on the inner wall of the mounting bracket 701, thus completing the power supply to the charging pile body 3 and maximizing the power for a single vehicle.

[0043] When another set of charging pile bodies 3 also needs power, the user scans the QR code on the display 15 and operates according to the steps to supply power to the other set of charging pile bodies 3 near the vehicle. This signal is transmitted to the control module 10, which controls the servo motor 7042 to start, controls the rotating arm 7037 to rotate, and drives the outer moving contact piece 7038 to move along the circumferential trajectory, making contact with the two sets of stationary contact pieces 702 arranged on the inner wall of the mounting bracket 701 at the same time, thus supplying power to both sets of charging pile bodies 3.

[0044] Once one set of charging pile main body 3 is powered, the signal is transmitted to the control module 10. The control module 10 controls the servo motor 7042 to start, controls the rotating arm 7037 to rotate, and drives the outer moving contact piece 7038 to move along the circumferential trajectory to contact another set of stationary contact pieces 702 arranged on the inner wall of the mounting bracket 701, so that the power of the single vehicle is maximized.

[0045] When the rotating arm 7037 rotates, it drives the outer moving contact piece 7038 to move precisely along the circumferential trajectory. Through flexible contact switching with different groups of stationary contact pieces 702, it can dynamically adapt to various scenarios such as single pile independent power supply and dual pile simultaneous power supply, ensuring that power output is allocated as needed, avoiding redundancy and waste, thereby maximizing the utilization of power resources.

[0046] When the DC charging box body 2 starts working, the heat dissipation component 8 automatically starts to quickly remove the heat accumulated inside the box and reduce the overall temperature.

[0047] The specific working principles of the sub-control mechanism 7 and the heat dissipation component 8 are as described above.

[0048] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0049] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A split-type DC charging pile with two charging guns, characterized in that, include: Base (1); The DC charging box body (2) is located in the middle of the base (1); The charging pile body (3) is symmetrically arranged on both sides of the DC charging box body (2) and located on the top of the base (1); Connecting wire (4) is used to connect the DC charging box body (2) to the two sets of charging pile bodies (3); Charging guns (5) are symmetrically arranged on both sides of the main body (3) of the charging pile; A charging cable (6) is connected between the charging pile body (3) and the charging gun (5); The sub-control mechanism (7) is located inside the DC charging box body (2); and the output ratio of the power module inside the DC charging box body (2) is dynamically adjusted through the sub-control mechanism (7) to adapt to the different power requirements when charging with two guns at the same time. Heat dissipation components (8) are respectively disposed on both sides inside the DC charging box body (2), and the heat dissipation components (8) realize the air circulation of the core heat-generating components inside the DC charging box body (2) to quickly dissipate the large amount of heat generated during dual-gun charging; The power module (9) and the control module (10) are respectively located inside the DC charging box body (2).

2. The split-type dual-gun DC charging pile according to claim 1, characterized in that, The sub-control mechanism (7) includes a mounting bracket (701) disposed inside the DC charging box body (2). The mounting bracket (701) has symmetrically arranged stationary contact pieces (702) on its inner circumference. The two sets of stationary contact pieces (702) are respectively connected to the connecting wire (4). The inner circumferential wall of the stationary contact piece (702) is fitted with a follower (703), and the top of the follower (703) is fitted with a drive (704).

3. A split-type dual-gun DC charging pile according to claim 2, characterized in that, The driven member (703) includes a cross bracket (7031) disposed at the top of the mounting bracket (701), a rotating shaft (7032) is inserted through the middle position of the cross bracket (7031), a rotating arm (7037) is disposed at the bottom of the rotating shaft (7032), and a plurality of moving contacts (7038) that cooperate with the stationary contact (702) are disposed on the outer side of the rotating arm (7037). A cross link (7033) is provided on the outer circumference of the top of the rotating shaft (7032), and a limit rod (7034) is provided on the top of the cross link (7033). A disc (7035) is provided on the outer circumference of the rotating shaft (7032) and at the top of the cross link (7033). The top of the disc (7035) has several circular grooves (7036) arranged in a circular pattern.

4. A split-type dual-gun DC charging pile according to claim 3, characterized in that, The driving component (704) includes a U-shaped support frame (7041) disposed at the top of the mounting bracket (701). A servo motor (7042) is disposed at the top of the U-shaped support frame (7041). The output end of the servo motor (7042) passes through the U-shaped support frame (7041) and is connected to a rotating shaft (7043). A lever (7045) that cooperates with the limiting rod (7034) is sleeved on the outer circumference of the rotating shaft (7043). A circular block (7044) that mates with the circular groove (7036) is fitted on the outer circumference of the rotating shaft (7043) and at the bottom of the lever (7045).

5. A split-type dual-gun DC charging pile according to claim 3, characterized in that, The bottom of the power module (9) is connected to the moving contact (7038) via a DC wire (11), and the DC wire (11) is wound around the outer circumference of the rotating shaft (7032) and cooperates with the rotating arm (7037); The top of the mounting bracket (701) is provided with a limiting post (12) that cooperates with the DC wire (11).

6. A split-type dual-gun DC charging pile according to claim 1, characterized in that, The bottom of the DC charging box body (2) is symmetrically provided with a fixing seat (13) that cooperates with the connecting wire (4).

7. A split-type dual-gun DC charging pile according to claim 2, characterized in that, The two sets of gaps formed between the two sets of stationary contact pieces (702) are one set smaller than the diameter of the rotating arm (7037) and the other set larger than the diameter of the rotating arm (7037).

8. A split-type dual-gun DC charging pile according to claim 1, characterized in that, The heat dissipation assembly (8) includes heat dissipation fans (801) respectively disposed on both sides inside the DC charging box body (2), and the two sets of heat dissipation fans (801) are respectively located at the inner top and inner bottom of the DC charging box body (2); The cooling fan (801) is provided with a louvered protective plate (802) on its outer side.

9. A split-type dual-gun DC charging pile according to claim 1, characterized in that, An emergency stop knob (14) is provided on one side of the DC charging box body (2), and the emergency stop knob (14) is connected to the power module (9).

10. A split-type dual-gun DC charging pile according to claim 1, characterized in that, A door panel (16) is provided on one side of the DC charging box body (2), and a display (15) is provided on one side of the door panel (16).

Images