Energy storage charging pile dynamic adjustment equipment under microgrid source-load interaction

Abstract

The invention discloses an energy storage charging pile dynamic adjusting device under micro-grid source-load interaction, an energy storage unit comprises a bearing frame and energy storage structures, the bearing frame is arranged in a central cavity of a shell in a position-adjustable manner, the number of the energy storage structures is multiple, and the energy storage structures are supported by the bearing frame; the lower end of each energy storage structure is provided with a charging electrode, and the upper end is provided with a discharging electrode. The base is connected to the lower end of the shell and comprises a charging terminal which extends towards the central cavity and is arranged opposite to the charging electrode, and the power grid is connected with the charging terminal through a charging interface; the top seat is connected to the upper end of the shell and comprises a discharging terminal extending towards the central cavity and arranged opposite to the discharging electrode, and the control unit is in control connection with the bearing frame and controls and drives the bearing frame to adjust the position so as to drive the charging electrode of each energy storage structure to be connected with the charging terminal in a conversion mode and drive the discharging electrode of each energy storage structure to be connected with the discharging terminal in a conversion mode. And the charging and discharging working conditions of each energy storage structure are converted, so that the efficiency and the safety are improved.

Description

Technical Field

[0001] This invention relates to the field of dynamic adjustment equipment for energy storage charging piles, and particularly to a dynamic adjustment equipment for energy storage charging piles under the interaction of microgrid source and load. Background Technology

[0002] The dynamic adjustment equipment for energy storage charging piles under the interaction of microgrid source and load is an integrated control system. By coordinating distributed energy (such as photovoltaic and wind power), energy storage system and charging pile group in microgrid, it realizes intelligent distribution and dynamic balance of power, improves energy utilization efficiency, reduces electricity costs and enhances system stability. Its core components include microgrid coordination controller, bidirectional energy conversion system, energy storage system, charging pile group and communication and monitoring system.

[0003] Traditional charging stations rely on the power grid, converting alternating current (AC) to direct current (DC) to quickly charge the batteries of electric vehicles. In this process, the charging station acts like an energy converter, transforming AC to DC and high voltage to low voltage. The charging efficiency of these stations is generally low, and they will cease operation if the power grid experiences a power outage. To address this, newly developed charging stations are equipped with battery packs that can store a certain amount of electricity input from the grid. Electric vehicle users then charge their batteries through these battery packs using charging guns. This improves charging efficiency and solves the charging problem during power outages. However, traditional charging stations typically use a single battery pack, which is limited in its charging and discharging capabilities. Simultaneous operation is not possible; charging or discharging can only occur at any given time. Typically, battery packs are charged via the grid at night, while during the day they are switched to discharging mode, charging electric vehicles via electric guns. During the charging phase, electric vehicle users cannot use the charging station, causing inconvenience and reducing efficiency. Furthermore, the battery packs heat up during long-term charging, and existing technologies, where individual battery packs are installed within the charging station, make rotational charging difficult. The accumulated temperature of a single battery pack over a long period, coupled with the reliance on natural cooling, poses safety hazards. Therefore, we propose a dynamic adjustment device for energy storage charging stations under microgrid source-load interaction. Summary of the Invention

[0004] The main objective of this invention is to provide a dynamic adjustment device for energy storage charging piles under the interaction of microgrid source and load, which can effectively solve the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] A dynamic adjustment device for energy storage charging piles under microgrid source-load interaction includes a shell with a vertically penetrating central cavity; an energy storage unit including a support frame and energy storage structures, wherein the support frame is positionally adjustable within the central cavity; multiple energy storage structures supported by the support frame, each energy storage structure having a charging electrode at its lower end and a discharging electrode at its upper end; a base connected to the lower end of the shell, including charging terminals extending toward the central cavity and arranged opposite to the charging electrodes, with the power grid connected to the charging terminals via a charging interface; a top seat connected to the upper end of the shell, including discharging terminals extending toward the central cavity and arranged opposite to the discharging electrodes, with an electric gun connected to the discharging terminals via a discharging interface; and a control unit connected to the support frame, configured to control and drive the support frame to adjust its position, thereby switching the connection between the charging electrodes and charging terminals of each energy storage structure, and switching the connection between the discharging electrodes and discharging terminals of each energy storage structure, thus switching the charging and discharging operating conditions of each energy storage structure.

[0007] Furthermore, an upper support plate is provided near the upper end of the central axis of the support frame, and a lower support plate is provided at the lower end. The support frame is rotatably arranged in the central cavity around the vertical central axis. The energy storage structure includes an even number of structures evenly distributed in a circle outside the central axis. Each energy storage structure is vertically arranged between the upper support plate and the lower support plate. The discharge electrode of each energy storage structure extends out of the through hole of the upper support plate, and the charging electrode extends out of the through hole of the lower support plate. The control unit includes an adjustment motor driven by the central axis and is configured to drive the support frame and each energy storage structure to rotate around the vertical central axis.

[0008] Furthermore, each of the energy storage structures has a discharge electrode at the top center and a discharge electrode at the bottom center, the charging terminals are evenly distributed in a circle at the lower end of the central cavity and the number is half the number of charging electrodes, and / or the discharge terminals are evenly distributed in a circle at the upper end of the central cavity and the number is half the number of discharge electrodes, and the discharge terminals and charging terminals are arranged crosswise in the circumferential direction.

[0009] Furthermore, the energy storage structure includes four circumferentially distributed outside the central axis, wherein two energy storage structures arranged at intervals are the first energy storage structure, and the other two charging bodies arranged at intervals are the second energy storage structure. The top seat is provided with two discharge terminals arranged symmetrically in the transverse direction outside the central axis, and the base is provided with two charging terminals arranged symmetrically in the longitudinal direction outside the central axis.

[0010] Furthermore, the control unit is configured to control the adjustment motor to drive the support frame to rotate around the central axis to switch operating conditions: In the first operating condition, the support frame is in its initial position, the charging electrode of the first energy storage structure is electrically connected to the charging terminal, while the discharging electrode is disconnected from the discharging terminal; the discharging electrode of the second energy storage structure is electrically connected to the discharging terminal, while the charging electrode is disconnected from the charging terminal. In the second operating condition, the adjustment motor drives the support frame to rotate 45° around the central axis, the discharging electrode of the first energy storage structure is switched to being electrically connected to the discharging terminal, while the charging electrode is disconnected from the charging terminal; the charging electrode of the second energy storage structure is switched to being electrically connected to the charging terminal, while the discharging electrode is disconnected from the discharging terminal. In the third operating condition, the adjustment motor drives the support frame to rotate 45° around the central axis, the discharging electrode of each energy storage structure is disconnected from the discharging terminal, while the charging electrode is disconnected from the charging terminal.

[0011] Furthermore, the energy storage structure includes multiple storage batteries connected in series vertically. The discharge electrode is located at the uppermost end and connected to each storage battery, and the charging electrode is located at the lowermost end and connected to each storage battery. The charging / discharging terminal includes a vertically arranged metal guide post and a metal end cap. The metal guide post is electrically connected to the charging / discharging interface. The rear end of the metal end cap is movably fitted onto the guide post. The guide post is provided with an elastic component that applies an elastic outward pushing force to the metal end cap, so that the metal end cap is elastically pressed against the charging / discharging electrode.

[0012] Furthermore, the control unit is equipped with a temperature sensor that detects the temperature of each energy storage structure in real time. The control unit is configured to receive and control the adjustment motor to drive the support frame to rotate according to the detected temperature values ​​of each energy storage structure to switch between charging and discharging conditions: when the temperature of one energy storage structure is detected to be higher than the set charging temperature, the control motor is controlled to drive the support frame to rotate, so that the charging electrode of the energy storage structure is disconnected from the charging terminal and charging is stopped; when the temperature of one energy storage structure is detected to be higher than the set discharging temperature, the control motor is controlled to drive the support frame to rotate, so that the discharging electrode of the energy storage structure is disconnected from the discharging terminal and discharging is stopped, and the discharging electrode of the other energy storage structure is connected to the discharging terminal.

[0013] Furthermore, the control unit is equipped with a power detector that monitors the power of each energy storage structure in real time. The control unit is configured to receive and control the adjustment motor to drive the support frame to rotate according to the detected power of each energy storage structure to switch between charging and discharging conditions: when the power of an energy storage structure is detected to be lower than the minimum set power, the control motor is controlled to drive the support frame to rotate, so that the discharge electrode of the energy storage structure is disconnected from the discharge terminal and the discharge stops; when the power of an energy storage structure is detected to be higher than the maximum set power, the control motor is controlled to drive the support frame to rotate, so that the charging electrode of the energy storage structure is disconnected from the charging terminal and the charging stops.

[0014] Furthermore, each of the energy storage structures is rotatably disposed between the upper and lower support plates. The outer shell is provided with an internal gear ring in the central cavity, and each of the energy storage structures is provided with an external gear ring that meshes with the internal gear ring. While the adjusting motor drives the support frame to rotate, each of the energy storage structures rotates due to the meshing connection between the internal and external gear rings, thus adjusting the circumferential angle.

[0015] Furthermore, a cooler is installed in the top cavity of the top seat, a circulating fan is installed in the bottom cavity of the base, and a vertically penetrating air duct is provided on the outer periphery of the outer shell. The top cavity of the top seat is connected to the central cavity through an upper air inlet and to the air duct through an upper air outlet. The bottom cavity of the base is connected to the central cavity through a lower air outlet and to the vertical channel through a lower air inlet. The circulating fan is configured to drive air to circulate within the top cavity, the central cavity, the bottom cavity, and the air duct.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0017] 1. By setting a movable and adjustable support frame in the central inner cavity of the outer shell, and setting multiple energy storage structures on the support frame, the control unit controls the support frame to adjust its position, and replaces the charging electrode and charging terminal of different energy storage structures to switch charging conditions, and replaces the discharging electrode and discharging terminal of different energy storage structures to achieve the goal that while one part of the charging body in the charging pile is charged by the grid, another part of the charging body discharges to meet the needs of new energy vehicles, thereby improving the convenience and efficiency of use.

[0018] 2. By setting multiple energy storage structures on the support frame, with the charging electrodes and charging terminals of each energy storage structure arranged opposite each other, and the control unit driving the position adjustment of the support frame, the charging electrodes and charging terminals of different energy storage structures are switched and connected. Thus, during the long-term charging process of the charging pile, different energy storage structures are charged in turn, avoiding the temperature accumulation caused by continuous charging of a single energy storage structure for a long time, improving the safety of charging, and maintaining the charging continuity of the entire charging pile to achieve higher charging efficiency.

[0019] 3. By setting an air duct outside the central cavity of the outer shell, an air circulation channel is formed with the top cavity of the top seat and the bottom cavity of the base. The cold air driven by the circulating fan to cool the air circulates in the air circulation channel. When it flows through the central cavity, it quickly carries away the heat generated by the energy storage structure during charging and discharging, and cools it down through the cooler, which improves the heat dissipation efficiency of charging and discharging and maintains the safety of the charging pile. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural schematic diagram of an embodiment of a dynamic adjustment device for energy storage charging piles under microgrid source-load interaction;

[0021] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure with part of the outer shell removed;

[0022] Figure 3 It is along Figure 1 A sectional view in the AA direction;

[0023] Figure 4 This is a three-dimensional structural diagram of the provided single energy storage structure;

[0024] Figure 5 This is a three-dimensional structural diagram of the provided load-bearing rotating frame;

[0025] Figure 6 This is a three-dimensional structural diagram of multiple energy storage structures assembled onto a support frame.

[0026] Figure 7 This is a three-dimensional structural diagram of the provided outer casing;

[0027] Figure 8 This is a schematic diagram of the three-dimensional structure of the energy storage structure bearing the rotating frame inside the outer shell;

[0028] Figure 9 This is a three-dimensional structural diagram of the provided base;

[0029] Figure 10 This is a three-dimensional structural diagram of the provided top mount;

[0030] Figure 11 This is a schematic diagram of the working status of the energy storage charging pile dynamic adjustment equipment under the microgrid source-load interaction (along...). Figure 1 (Cross-sectional view of the CC longitudinal plane).

[0031] In the diagram: 1. Base; 11. Charging interface; 12. Charging terminal; 13. Lower air inlet; 14. Lower air outlet; 2. Top mount; 21. Discharge interface; 22. Discharge terminal; 23. Upper air outlet; 24. Upper air inlet; 3. Outer shell; 31. Inner gear ring; 32. Air duct; 4. Energy storage structure; 4a. First energy storage structure; 4b. Second energy storage structure; 41. Outer gear ring; 42. Discharge electrode; 43. Charging electrode; 5. Support frame; 51. Central shaft; 52. Upper support plate; 53. Lower support plate; 6. Cooler; 7. Circulating fan. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] like Figure 1-2 As shown, the present invention provides a dynamic adjustment device for energy storage charging piles under the interaction of microgrid source and load, including a shell 3, an energy storage unit, a base 1, a top seat 2 and a control unit. The outer casing 3 has a vertically penetrating central cavity; the energy storage unit includes a support frame 5 and an energy storage structure 4. The support frame 5 is positionally adjustable and is located within the central cavity. The energy storage structure 4 includes multiple structures supported by the support frame 5. Each energy storage structure 4 has a charging electrode 43 at its lower end and a discharging electrode 42 at its upper end. The base 1 is connected to the lower end of the outer casing 3 and includes a charging terminal 12 extending toward the central cavity and arranged opposite to the charging electrode 43. The power grid is connected to the charging terminal 12 through a charging interface 11. The top seat 2 is connected to the upper end of the outer casing 3 and includes a discharging terminal 22 extending toward the central cavity and arranged opposite to the discharging electrode 42. The electric gun is connected to the discharging terminal 22 through a discharging interface 21. The control unit is connected to the support frame 5 and is configured to control the position adjustment of the drive support frame 5 to switch the connection between the charging electrode 43 and the charging terminal 12 of each energy storage structure 4, and to switch the connection between the discharging electrode 42 and the discharging terminal 22 of each energy storage structure 4, thereby switching the charging and discharging conditions of each energy storage structure 4.

[0034] It should be noted that a charging function circuit is provided between the charging interface 11 and the charging terminal 12 to realize the AC to DC conversion function and avoid overcharging and other problems. This uses existing technology circuitry. Similarly, a discharging function circuit is provided between the discharging interface 21 and the discharging terminal 22 to control the charging speed and other functions. This also uses existing technology circuitry, and its structural principle will not be described in detail.

[0035] Using the provided dynamic adjustment equipment for energy storage charging piles under microgrid source-load interaction, a movable and adjustable support frame is set in the central cavity of the outer shell, and multiple energy storage structures are set on the support frame. The control unit controls the position adjustment of the support frame 5 to replace the connection between the charging electrode 43 and the charging terminal 12 of different energy storage structures 4, to switch the charging conditions, and replace the connection between the discharging electrode 42 and the discharging terminal 22 of different energy storage structures 4. This allows one part of the charging body in the charging pile to be charged by the grid while another part of the charging body discharges to meet the needs of new energy vehicles, improving the convenience and efficiency of use.

[0036] like Figure 5-6 As shown, in some embodiments, an upper support plate 52 is provided near the upper end of the central axis 51 of the support frame 5, and a lower support plate 53 is provided at the lower end. The support frame 5 is rotatably arranged in the central cavity around the vertical central axis 51. The energy storage structure 4 includes an even number of structures evenly distributed in a circle outside the central axis 51. Each energy storage structure 4 is vertically arranged between the upper support plate 52 and the lower support plate 53. The discharge electrode 42 of each energy storage structure 4 extends out from the through hole of the upper support plate 52, and the charging electrode 43 extends out from the through hole of the lower support plate 53. The control unit includes an adjustment motor that is drivenly connected to the central axis 51 and is configured to drive the support frame 5 and each energy storage structure 4 to rotate around the vertical central axis 51.

[0037] like Figure 4 As shown, each of the energy storage structures 4 has a discharge electrode 42 at the top center and a discharge electrode 42 at the bottom center. The charging terminals 12 are evenly distributed in a circle at the lower end of the central cavity and their number is half the number of charging electrodes 43. And / or, the discharge terminals 22 are evenly distributed in a circle at the upper end of the central cavity and their number is half the number of discharge electrodes 42. The discharge terminals 22 and the charging terminals 12 are arranged crosswise in the circumferential direction.

[0038] like Figure 2-3 , Figure 6 and Figure 8 As shown, in some embodiments, the energy storage structure 4 includes four circumferentially distributed outside the central axis 51, wherein two energy storage structures 4 arranged at intervals are the first energy storage structure 4a, and the other two charging bodies arranged at intervals are the second energy storage structure 4b. The top seat 2 is provided with two discharge terminals 22 arranged symmetrically in the transverse direction outside the central axis 51, and the base 1 is provided with two charging terminals 12 arranged symmetrically in the longitudinal direction outside the central axis 51. Based on the above embodiments, the control unit is configured to control the adjustment motor to drive the support frame 5 to rotate around the central axis 51 to switch operating conditions: In the first operating condition, the support frame is in its initial position, the charging electrode 43 of the first energy storage structure 4a is electrically connected to the charging terminal 12, while the discharging electrode 42 is disconnected from the discharging terminal 22; the discharging electrode 42 of the second energy storage structure 4b is electrically connected to the discharging terminal 22, while the charging electrode 43 is disconnected from the charging terminal 12. In the second operating condition, the adjustment motor drives the support frame 5 to rotate 90° around the central axis 51, the discharging electrode 42 of the first energy storage structure 4a is switched to be electrically connected to the discharging terminal 22, while the charging electrode 43 is disconnected from the charging terminal 12; the charging electrode 43 of the second energy storage structure 4b is switched to be electrically connected to the charging terminal 12, while the discharging electrode 42 is disconnected from the discharging terminal 22. In the third operating condition, the adjustment motor drives the support frame 5 to rotate 45° around the central axis 51, the discharging electrode 42 of each energy storage structure 4 is disconnected from the discharging terminal 22, while the charging electrode 43 is disconnected from the charging terminal 12.

[0039] Based on the above implementation process, the control unit drives the position adjustment of the support frame 5, so that the charging electrode 43 of different energy storage structures 4 is switched to the charging terminal 12. Thus, during the long-term charging process of the charging pile, different energy storage structures 4 are charged in turn, avoiding the temperature accumulation caused by continuous charging of a single energy storage structure 4 for a long time, improving the safety of charging, and maintaining the charging continuity of the entire charging pile to obtain higher charging efficiency.

[0040] During implementation, the energy storage structure 4 includes multiple storage batteries connected in series vertically. The discharge electrode 42 is located at the uppermost end and connected to each storage battery, and the charging electrode 43 is located at the lowermost end and connected to each storage battery. The charging terminal 12 / discharging terminal 22 includes a vertically arranged metal guide post and a metal end cap. The metal guide post is electrically connected to the charging interface 11 / discharging interface 21. The rear end of the metal end cap is movably fitted onto the guide post. The guide post is provided with an elastic component that applies an elastic outward pushing force to the metal end cap, so that the metal end cap is elastically pressed against the charging electrode 43 / discharging electrode 42.

[0041] In some preferred embodiments, the control unit is equipped with a temperature sensor that detects the temperature of each of the energy storage structures 4 in real time. The control unit is configured to receive and control the adjustment motor to drive the support frame 5 to rotate according to the detected temperature values ​​of each energy storage structure 4 to switch between charging and discharging conditions: when the temperature of one energy storage structure 4 is detected to be higher than the set charging temperature, the control motor is controlled to drive the support frame 5 to rotate, so that the charging electrode 43 of the energy storage structure 4 is disconnected from the charging terminal 12 and charging is stopped; when the temperature of one energy storage structure 4 is detected to be higher than the set discharging temperature, the control motor is controlled to drive the support frame 5 to rotate, so that the discharging electrode 42 of the energy storage structure 4 is disconnected from the discharging terminal 22 and discharging is stopped, and the discharging electrode 42 of the other energy storage structure 4 is connected to the discharging terminal 22.

[0042] In some preferred embodiments, the control unit is equipped with a power detector that detects the power of each of the energy storage structures 4 in real time. The control unit is configured to receive and control the adjustment motor to drive the support frame 5 to rotate according to the detected power of each energy storage structure 4 to switch between charging and discharging conditions: when the power of an energy storage structure 4 is detected to be lower than the minimum set power, the control motor is controlled to drive the support frame 5 to rotate, so that the discharge electrode 42 of the energy storage structure 4 is disconnected from the discharge terminal 22 and the discharge stops; when the power of an energy storage structure 4 is detected to be higher than the maximum set power, the control motor is controlled to drive the support frame 5 to rotate, so that the charging electrode 43 of the energy storage structure 4 is disconnected from the charging terminal 12 and the charging stops.

[0043] like Figure 7-11As shown, in order to improve heat dissipation efficiency, in some preferred embodiments, a cooler 6 is provided in the top cavity of the top seat 2, a circulating fan 7 is provided in the bottom cavity of the base 1, and a vertically penetrating air duct 32 is provided on the outer periphery of the outer shell 3. The top cavity of the top seat 2 is connected to the central cavity through the upper air inlet 24 and to the air duct 32 through the upper air outlet 23. The bottom cavity of the base 1 is connected to the central cavity through the lower air outlet 14 and to the vertical channel through the lower air inlet 13. The circulating fan 7 is configured to drive air to circulate in the top cavity, the central cavity, the bottom cavity and the air duct 32. By setting an air duct 32 outside the central cavity of the outer shell 3, an air circulation channel is formed with the top cavity of the top seat 2 and the bottom cavity of the base 1. The cold air driven by the circulating fan 7 to cool the air cooled by the cooler 6 circulates in the air circulation channel. When it flows through the central cavity, it quickly carries away the heat generated by the energy storage structure 4 during charging and discharging, and cools it through the cooler 6, thereby improving the heat dissipation efficiency of charging and discharging and maintaining the safety of the charging pile.

[0044] like Figure 2-3 , Figure 6 and Figure 8 As shown, each of the energy storage structures 4 is rotatably disposed between the upper support plate 52 and the lower support plate 53. An internal gear ring 31 is disposed within the central cavity of the outer shell 3, and each of the energy storage structures 4 is provided with an external gear ring 41 that meshes with the internal gear ring 31. While the adjusting motor drives the support frame 5 to rotate, each of the energy storage structures 4 rotates due to the meshing connection between the internal gear ring 31 and the external gear ring 41, adjusting its circumferential angle. This structure allows different sides of the energy storage structure 4 to face outwards, improving heat dissipation efficiency.

[0045] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A dynamic adjustment device for energy storage charging piles under microgrid source-load interaction, characterized in that: The device includes an outer shell (3) with a vertically penetrating central cavity, an energy storage unit including a support frame (5) and an energy storage structure (4), the support frame (5) being positionally adjustable and located within the central cavity, the energy storage structure (4) including multiple structures supported by the support frame (5), each energy storage structure (4) having a charging electrode (43) at its lower end and a discharging electrode (42) at its upper end; a base (1) connected to the lower end of the outer shell (3), including a charging terminal (12) extending toward the central cavity and arranged opposite to the charging electrode (43), the power grid being connected to the charging terminal (12) via a charging interface (11); The top seat (2) is connected to the upper end of the outer shell (3) and includes a discharge terminal (22) extending toward the central cavity and arranged opposite to the discharge electrode (42). The electric gun is connected to the discharge terminal (22) through the discharge interface (21). The control unit is connected to the support frame (5) and is configured to control and drive the support frame (5) to adjust its position so as to drive the charging electrode (43) of each energy storage structure (4) to switch the connection with the charging terminal (12) and drive the discharge electrode (42) of each energy storage structure (4) to switch the connection with the discharge terminal (22) to perform the charging and discharging operation switching of each energy storage structure (4).

2. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 1, characterized in that: The support frame (5) has an upper support plate (52) near the upper end of the central axis (51) and a lower support plate (53) at the lower end. The support frame (5) is arranged in the central cavity and rotates around the vertical central axis (51). The energy storage structure (4) includes an even number of structures that are evenly distributed in a circle outside the central axis (51). Each energy storage structure (4) is arranged vertically between the upper support plate (52) and the lower support plate (53). The discharge electrode (42) of each energy storage structure (4) extends out of the through hole of the upper support plate (52), and the charging electrode (43) extends out of the through hole of the lower support plate (53). The control unit includes an adjustment motor that is driven and connected to the central axis (51) and is configured to drive the support frame (5) and each energy storage structure (4) to rotate around the vertical central axis (51).

3. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 2, characterized in that: Each of the energy storage structures (4) has a discharge electrode (42) at the top center and a discharge electrode (42) at the bottom center. The charging terminals (12) are evenly distributed in a circle at the lower end of the central cavity and the number is half the number of the charging electrodes (43). And / or, the discharge terminals (22) are evenly distributed in a circle at the upper end of the central cavity and the number is half the number of the discharge electrodes (42). The discharge terminals (22) and the charging terminals (12) are arranged crosswise in the circumferential direction.

4. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 3, characterized in that: The energy storage structure (4) includes four energy storage structures (4) arranged in a circle around the central axis (51). Two of the energy storage structures (4) are arranged at intervals, which are the first energy storage structure (4a). The other two are arranged at intervals, which are the second energy storage structure (4b). The top seat (2) is provided with two discharge terminals (22) arranged symmetrically in the transverse direction outside the central axis (51). The base (1) is provided with two charging terminals (12) arranged symmetrically in the longitudinal direction outside the central axis (51).

5. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 4, characterized in that: The control unit is configured to control the adjustment motor to drive the support frame (5) to rotate around the central axis (51) to switch operating conditions: First operating condition: the support frame is in its initial position, the charging electrode (43) of the first energy storage structure (4a) is electrically connected to the charging terminal (12), while the discharging electrode (42) is disconnected from the discharging terminal (22), and the discharging electrode (42) of the second energy storage structure (4b) is electrically connected to the discharging terminal (22), while the charging electrode (43) is disconnected from the charging terminal (12); Second operating condition: the adjustment motor drives the support frame (5) to rotate 90° around the central axis (51), the second operating condition... In the first energy storage structure (4a), the discharge electrode (42) is switched to be electrically connected to the discharge terminal (22), while the charging electrode (43) is disconnected from the charging terminal (12). In the second energy storage structure (4b), the charging electrode (43) is switched to be electrically connected to the charging terminal (12), while the discharge electrode (42) is disconnected from the discharge terminal (22). In the third working condition, the motor drives the support frame (5) to rotate 45° around the central axis (51), and the discharge electrode (42) of each energy storage structure (4) is disconnected from the discharge terminal (22), while the charging electrode (43) is disconnected from the charging terminal (12).

6. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 5, characterized in that: The energy storage structure (4) includes multiple storage batteries connected in series vertically. The discharge electrode (42) is located at the top and connected to each storage battery. The charging electrode (43) is located at the bottom and connected to each storage battery. The charging terminal (12) / discharging terminal (22) includes a vertically arranged metal guide post and a metal end cap. The metal guide post is electrically connected to the charging interface (11) / discharging interface (21). The rear end of the metal end cap is movably fitted on the guide post. The guide post is provided with an elastic component that applies an elastic external force to the metal end cap so that the metal end cap is elastically pressed onto the charging electrode (43) / discharging electrode (42).

7. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 6, characterized in that: The control unit is equipped with a temperature sensor that detects the temperature of each of the energy storage structures (4) in real time. The control unit is configured to receive and control the adjustment motor to drive the support frame (5) to rotate according to the detected temperature value of each energy storage structure (4) to switch between charging and discharging conditions: when the temperature of one energy storage structure (4) is detected to be higher than the set charging temperature, the control motor is controlled to drive the support frame (5) to rotate, so that the charging electrode (43) of the energy storage structure (4) is disconnected from the charging terminal (12) and charging stops. When the temperature of one energy storage structure (4) is detected to be higher than the set discharging temperature, the control motor is controlled to drive the support frame (5) to rotate, so that the discharging electrode (42) of the energy storage structure (4) is disconnected from the discharging terminal (22) and discharging stops, and the discharging electrode (42) of another energy storage structure (4) is connected to the discharging terminal (22).

8. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 7, characterized in that: The control unit is equipped with a power detector that detects the power of each energy storage structure (4) in real time. The control unit is configured to receive and control the adjustment motor to drive the support frame (5) to rotate according to the detected power of each energy storage structure (4) to switch between charging and discharging conditions: when the power of an energy storage structure (4) is detected to be lower than the minimum set power, the control motor drives the support frame (5) to rotate, so that the discharge electrode (42) of the energy storage structure (4) is disconnected from the discharge terminal (22) and the discharge stops; when the power of an energy storage structure (4) is detected to be higher than the maximum set power, the control motor drives the support frame (5) to rotate, so that the charging electrode (43) of the energy storage structure (4) is disconnected from the charging terminal (12) and the charging stops.

9. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 8, characterized in that: Each of the energy storage structures (4) is rotatably disposed between the upper support plate (52) and the lower support plate (53). The outer shell (3) is provided with an inner gear ring (31) in the central cavity. Each of the energy storage structures (4) is provided with an outer gear ring (41) that meshes with the inner gear ring (31). While the adjusting motor drives the support frame (5) to rotate, each of the energy storage structures (4) rotates due to the meshing connection between the inner gear ring (31) and the outer gear ring (41), thus adjusting the circumferential angle.

10. The dynamic adjustment device for energy storage charging piles under microgrid source-load interaction as described in claim 9, characterized in that: A cooler (6) is provided in the top cavity of the top seat (2), a circulating fan (7) is provided in the bottom cavity of the base (1), and a vertically penetrating air duct (32) is provided on the outer periphery of the outer shell (3). The top cavity of the top seat (2) is connected to the central cavity through the upper air inlet (24) and to the air duct (32) through the upper air outlet (23). The bottom cavity of the base (1) is connected to the central cavity through the lower air outlet (14) and to the vertical channel through the lower air inlet (13). The circulating fan (7) is configured to drive air to circulate in the top cavity, the central cavity, the bottom cavity and the air duct (32).

Images