Host-free terminal integrated charging pile

Abstract

The utility model discloses a host-free terminal integrated type charging pile, which relates to the technical field of charging piles, comprises a charging pile body and is formed by interconnection of a plurality of independent charging piles, and has the beneficial effects that the charging pile body formed by the plurality of independent charging piles is interconnected through a direct current interconnection bus and a control signal line, so that a traditional integrated type host structure is abandoned, and the cost is reduced; high hardware cost caused by module integration is avoided, independent charging piles are allowed to be independently produced and maintained through modular design, coupling of complex modules is reduced, difficulty and cost of later maintenance and replacement of parts are reduced, and meanwhile the space utilization rate is optimized and the occupied area is reduced through scattered layout of the independent charging piles. Besides, the master control circuit board can acquire the requirements of the terminal in real time and coordinate the output power of each charging module, so that the cooperative cooperation of on-demand power supply and multi-module parallel output is realized, and the charging efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of charging pile technology, and in particular to hostless terminal clustered charging piles. Background Technology

[0002] As an important charging device, the charging pile generally adopts a "one-to-many" charging mode, which centralizes modular power supplies that would otherwise be installed independently onto a single host unit. The host unit then distributes power to each charging terminal, enabling power sharing among multiple terminals. 2

[0003] However, since a charging pile is essentially a large power cluster, typically composed of multiple charging modules, the integration of numerous modules significantly increases its manufacturing cost. Furthermore, the numerous complex modules require specialized technicians and equipment for later maintenance, and the cost of repairing and replacing parts is also high, resulting in persistently high long-term maintenance costs for charging piles. In addition, the large structure of a charging pile occupies a significant amount of space, which undoubtedly increases site rental and construction costs in areas with limited land resources.

[0004] While existing individual charging piles mitigate some of the aforementioned problems, they cannot achieve the power-sharing advantages of charging piles. Therefore, a hostless terminal clustered charging pile needs to be designed, which can combine the advantages of charging piles while overcoming their disadvantages such as large footprint and high cost. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the aforementioned problems with hostless terminal-connected charging piles, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a hostless terminal interconnected charging pile, including a charging pile body, which is composed of multiple independent charging piles interconnected, and the multiple independent charging piles are electrically connected to each other through a DC interconnection bus and a control signal line;

[0008] Each of the aforementioned independent charging stations includes:

[0009] Input circuit breaker, used to connect to external power and control the on / off state of the circuit;

[0010] The charging module, electrically connected to the input circuit breaker, is used to convert the input power into DC power required for charging the charging terminal, and can adjust the output voltage and current.

[0011] The main control circuit board is electrically connected to the charging module and is used to coordinate the operation of each charging module and realize power distribution between charging piles.

[0012] The DC module contactor is electrically connected to the main control circuit board and is used to control the on / off state of signal lines and power sharing.

[0013] The multiple independent charging piles are interconnected by a DC interconnection bus and transmit the coordinated control signals sent by the main control circuit board through the control signal line to complete the dynamic power allocation and task coordination of multiple charging modules.

[0014] As a preferred embodiment of the hostless terminal clustered charging pile of this utility model, the DC interconnection bus adopts a parallel connection method, and the charging module output terminal of each independent charging pile is connected to the DC interconnection bus through a DC module contactor to form a distributed power supply cluster.

[0015] As a preferred embodiment of the hostless terminal clustered charging pile of this utility model, the main control circuit board has a built-in communication module, which realizes real-time data interaction between each independent charging pile through control signal lines, and dynamically adjusts the power output according to the terminal requirements.

[0016] As a preferred embodiment of the hostless terminal-connected charging pile of this utility model, the independent charging pile further includes:

[0017] A fuse, connected in series between the input circuit breaker and the charging module, is used for overcurrent protection;

[0018] The shunt and DC meter are integrated into the DC interconnect bus for real-time monitoring of current and power.

[0019] As a preferred embodiment of the hostless terminal clustered charging pile of this utility model, the independent charging pile is equipped with a charging gun, which is electrically connected to the charging module and used to connect to the charging terminal for charging.

[0020] As a preferred embodiment of the hostless terminal clustered charging pile of this utility model, wherein: the independent charging pile is provided with an air duct and equipped with a fan for thermal management.

[0021] As a preferred embodiment of the hostless terminal clustered charging pile of this utility model, the surface of the independent charging pile is equipped with a display screen for displaying charging status and operation information.

[0022] The beneficial effects of this invention are as follows: By using a charging pile body composed of multiple independent charging piles interconnected via a DC interconnection bus and control signal lines, the traditional centralized host structure is eliminated, avoiding the high hardware costs associated with module integration. Furthermore, the modular design allows for independent production and maintenance of each charging pile, reducing the coupling of complex modules and lowering the difficulty and cost of later maintenance and replacement of parts. Simultaneously, the distributed layout of the independent charging piles optimizes space utilization and reduces the floor space required. In addition, the main control circuit board can collect the terminal's needs in real time and coordinate the output power of each charging module, achieving on-demand power supply and coordinated parallel output of multiple modules, thereby improving charging efficiency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of 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. Among them:

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the principle of this utility model.

[0026] Figure descriptions: 1. Charge stack body; 11. DC interconnection bus; 12. Control signal line; 2. Input circuit breaker; 3. Charging module; 4. Main control circuit board; 5. DC module contactor; 6. Charging gun; 7. Fan; 8. Display screen. Detailed Implementation

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0030] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0031] Reference Figures 1-2 This invention provides a hostless terminal clustered charging pile, which includes a charging pile body 1, which is composed of multiple independent charging piles interconnected. The multiple independent charging piles are electrically connected to each other through a DC interconnection bus 11 and a control signal line 12. The distributed charging architecture is constructed through multiple independent charging piles, eliminating the traditional centralized host, reducing centralized thermal management and cost pressure, and improving system flexibility and scalability.

[0032] Each individual charging station includes:

[0033] Input circuit breaker 2 is used to connect to an external power source and control the circuit's on / off state, ensuring safe connection and disconnection of the circuit and preventing abnormal current from damaging internal components. At the same time, it supports independent operation or shutdown of a single charging pile, facilitating maintenance and energy consumption management.

[0034] The charging module 3 is electrically connected to the input circuit breaker 2 and is used to convert the input alternating current (AC) into direct current (DC). It also adjusts the output voltage and current through a DC / DC conversion circuit to adapt to the charging needs of different charging terminals.

[0035] The main control circuit board 4 is electrically connected to the charging module 3 and is used to coordinate the operation of each charging module 3 and realize the power distribution between charging piles. The main control circuit board 4 has a built-in communication module, which realizes real-time data interaction between each independent charging pile through the control signal line 12 and dynamically adjusts the power output according to the terminal requirements.

[0036] The DC module contactor 5 is electrically connected to the main control circuit board 4 and is used to control the on / off state of the signal line 12 and power sharing, flexibly manage the power flow, ensure that power is allocated on demand, and improve the reliability and flexibility of power sharing.

[0037] The DC interconnection bus 11 adopts a parallel connection method. The output terminals of the charging modules 3 of each independent charging pile are connected to the DC interconnection bus 11 through the DC module contactor 5 to form a distributed power cluster, which integrates the power of the dispersed charging modules 3, balances the load, reduces the cost and maintenance difficulty of the centralized power cluster, and improves the system reliability.

[0038] Among them, multiple independent charging piles are interconnected through DC interconnection bus 11, and the coordinated control signals sent by the main control circuit board 4 are transmitted through control signal line 12 to complete the dynamic power allocation and task coordination of multiple charging modules 3.

[0039] The specific coordination methods are as follows:

[0040] When only some independent charging piles are working, such as when the charging gun of pile 1 is plugged in while piles 2 and 3 are not plugged in, the charging modules 3 of piles 2 and 3 transmit power to pile 1 through the DC interconnection bus 11. At the same time, the main control circuit board 4 sends a coordinated control signal through the control signal line 12 to coordinate the power output of the charging modules 3 of each pile, so that piles 1, 2, and 3 can jointly supply power to the charging gun 6 of pile 1. If piles 1 and 2 are plugged in and working at the same time, the main control circuit board 4 sends a signal through the control signal line 12 to prioritize the power supply to pile 1. When the charging gun of pile 1 is unplugged, the main control circuit board 4 adjusts the signal again through the control signal line 12 so that pile 3 allocates power according to the preset logic (such as prioritizing the power task originally undertaken by pile 1), and pile 2 works independently.

[0041] When the charging guns 6 of the three charging piles are simultaneously engaged, the main control circuit board 4 sends a signal through the control signal line 12, causing the charging modules 3 of the three piles to operate independently. At this time, the DC interconnection bus 11 does not perform cross-pile power allocation, and each charging module 3 supplies power to its respective connected charging gun 6, without participating in cross-pile power dynamic allocation. Through the above method, the charging pile body 1 can realize dynamic power allocation and task coordination of the charging modules 3 according to different charging gun engagement scenarios, using the DC interconnection bus 11 and the control signal line 12, flexibly meeting diverse charging needs.

[0042] Independent charging stations also include:

[0043] A fuse is connected in series between the input circuit breaker 2 and the charging module 3 for overcurrent protection, preventing abnormally large currents from damaging components such as the charging module 3 and enhancing circuit safety.

[0044] The shunt and DC meter are integrated into the DC interconnect bus 11 for real-time monitoring of current and power consumption. The shunt, typically connected in series in the circuit, is essentially a very small resistor that generates a voltage drop when DC current flows through it, thus measuring the current. The DC meter, however, is connected in parallel with the shunt. This is because the DC meter indirectly displays the current value by measuring the voltage signal generated across the shunt; that is, the DC meter must be connected in parallel to the potential terminal of the shunt to obtain the voltage signal for current measurement. Real-time and accurate monitoring of charging current and power consumption provides data support for charging management and billing, facilitating operational monitoring.

[0045] The independent charging pile is equipped with a charging gun 6, which is electrically connected to the charging module 3 and is used to connect to the charging terminal for charging, so as to realize the power transmission between the charging terminal and the charging pile body 1.

[0046] The independent charging pile has an internal air duct and is equipped with a fan 7 for thermal management, which reduces the temperature of internal components, prevents overheating from causing failure, extends equipment life, and improves operational stability.

[0047] Each independent charging station is equipped with a display screen 8 on its surface to show the charging status and operation information, providing an intuitive human-machine interface so that users can understand the charging status in real time and facilitate operation and management.

[0048] In addition, in this device, the main control circuit board 4, the charging module 3, the fan 7, and the display screen 8 are all electrically connected.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A hostless terminal-based interconnected charging pile, characterized in that, include: The charging pile body (1) is composed of multiple independent charging piles interconnected, and the multiple independent charging piles are electrically connected to each other through a DC interconnection bus (11) and a control signal line (12); Each of the aforementioned independent charging stations includes: Input circuit breaker (2) is used to connect to an external power source and control the circuit's on / off state; The charging module (3) is electrically connected to the input circuit breaker (2) and is used to convert the input power into DC power required for charging the charging terminal, and can adjust the output voltage and current. The main control circuit board (4) is electrically connected to the charging module (3) and is used to coordinate the operation of each charging module (3) and realize the power distribution between charging piles; The DC module contactor (5) is electrically connected to the main control circuit board (4) and is used to control the on / off state of the signal line (12) and power sharing. Among them, multiple independent charging piles are interconnected by DC interconnection bus (11) and transmit the coordinated control signal sent by the main control circuit board (4) through the control signal line (12) to complete the dynamic power allocation and task coordination of multiple charging modules (3).

2. The hostless terminal clustered charging pile according to claim 1, characterized in that: The DC interconnection bus (11) is connected in parallel. The output terminals of the charging modules (3) of each independent charging pile are connected to the DC interconnection bus (11) through the DC module contactor (5) to form a distributed power supply cluster.

3. The hostless terminal clustered charging pile according to claim 2, characterized in that: The main control circuit board (4) has a built-in communication module, which realizes real-time data interaction between each independent charging pile through the control signal line (12) and dynamically adjusts the power output according to the terminal requirements.

4. The hostless terminal clustered charging pile according to claim 1, characterized in that: The independent charging station also includes: A fuse is connected in series between the input circuit breaker (2) and the charging module (3) for overcurrent protection; The shunt and DC meter are integrated in the DC interconnect bus (11) for real-time monitoring of current and power.

5. The hostless terminal clustered charging pile according to claim 1, characterized in that: The independent charging pile is equipped with a charging gun (6), which is electrically connected to the charging module (3) and is used to connect to the charging terminal for charging.

6. The hostless terminal clustered charging pile according to claim 1, characterized in that: The independent charging pile is equipped with an air duct and a fan (7) for thermal management.

7. The hostless terminal clustered charging pile according to claim 1, characterized in that: The surface of the independent charging pile is equipped with a display screen (8) for displaying charging status and operation information.

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