A charging pile component with power storage function

Abstract

The present invention discloses a charging pile assembly with a power storage function, comprising a charging pile body and a photovoltaic power generation device, wherein the charging pile body is connected to a charging gun, and a hollow embedded shell is provided at the bottom of the charging pile body, wherein a power storage and power supply mechanism is provided in the embedded shell, and the power storage and power supply mechanism comprises a power supply selection component and at least two power storage and power supply components, wherein the power storage and power supply components comprise a battery, a power supply connector, a photovoltaic charging connector, an external network charging connector, and a charging docking component. The charging pile assembly with a power storage function increases the power storage capacity by providing multiple batteries. On sunny days and during off-peak hours, the photovoltaic power generation device and the external network are used to charge batteries with insufficient power, respectively. The power supply selection component sequentially uses batteries with sufficient power to electrically connect to the charging gun to charge the car, thereby avoiding the use of peak power, reducing charging and electricity costs, and alleviating the power consumption pressure of the external power grid during the day.

Description

Technical Field

[0001] The present invention relates to the technical field of charging piles, and in particular to a charging pile assembly with a power storage function. Background Art

[0002] Charging piles function similarly to gas pumps at gas stations. They can be fixed to the ground or walls and installed in public buildings (such as public buildings, shopping malls, and public parking lots), residential parking lots, or charging stations. They can charge various models of electric vehicles at different voltage levels. Currently, charging stations connect directly to the AC power grid at the input, and are equipped with charging plugs or charging guns at the output for charging electric vehicles. This method increases charging costs and puts increased pressure on the AC power grid during the day, as electric vehicles are mostly charged during peak electricity consumption.

[0003] To this end, Chinese invention patent application publication number CN112356723A discloses a charging pile with a photovoltaic power generation device. The charging pile comprises a main body, a solar photovoltaic panel mounted above the main body, a battery electrically connected to the panel, and a mains charging cable electrically connected to a first pair of charging electrodes. A switch is mounted on the mains charging cable. The charging pile can charge multiple electric vehicles at night, effectively increasing the effective utilization rate of the charging pile. Furthermore, by providing batteries to store electricity during off-peak hours and supply power during peak hours, the solar photovoltaic panel reduces pressure on the power grid.

[0004] However, the battery storage capacity of the above-mentioned charging piles is limited. After the internal power of the battery is used up during the day, the external power grid still needs to be used for power supply, which increases the pressure on the external power grid. Moreover, this is peak power, which increases the charging cost.

[0005] Therefore, it is necessary to improve the charging pile with power storage function in the prior art. Summary of the Invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide a charging pile assembly with a power storage function that reduces the daytime power consumption pressure of the external power grid and reduces the charging cost.

[0007] To achieve the above technical effects, the technical solution of the present invention is: a charging pile component with a power storage function, comprising a charging pile body and a photovoltaic power generation device arranged on the top of the charging pile body, the charging pile body is connected to a charging gun, and a hollow embedded shell is provided at the bottom of the charging pile body, and a power storage and power supply mechanism is provided in the embedded shell, the power storage and power supply mechanism includes a power supply selection component and at least two power storage and power supply components, the power storage and power supply component includes a battery, a power supply connector electrically connected to the battery electrode, a photovoltaic charging connector electrically connected to the output end of the photovoltaic power generation device, an external network charging connector electrically connected to the external network, and a charging docking component, the power supply selection component is used to electrically connect the battery to the charging gun in sequence until the remaining power is less than 10%, and the charging docking component is used to control the battery to be electrically connected to the photovoltaic charging connector on sunny days and to the external network charging connector during off-peak hours until it is fully charged.

[0008] In the charging pile assembly of the above technical solution, the charging pile body is fixedly installed on the ground, and the embedded shell is installed under the ground. When the equipment is running, on a sunny day, the charging docking assembly in the power storage and power supply assembly electrically connects the photovoltaic charging connector connected to the photovoltaic power generation device with the electrode of the battery, so that the photovoltaic power generation device stores the electricity generated by photovoltaic power generation in the battery until the battery is fully charged. When someone uses the charging gun to charge the car, the power supply selection assembly selects the fully charged battery and electrically connects it to the charging gun so that the battery can charge the car through the charger until the remaining power of the battery is reduced to 10%. The power supply selection assembly selects the remaining batteries with sufficient power to supply power to the car. After charging is completed, the battery power drops, and the charging docking component will electrically connect the photovoltaic charging connector to the battery until the battery is fully charged. During the off-peak period at night, if the battery in the power storage and power supply component is not full, the charging docking component will electrically connect the battery to the external network, and supply power to the battery through the external network to fully charge the battery. When someone charges the car during the off-peak period, the power supply selection component selects the fully charged battery to be electrically connected to the charging gun, and supplies power to the car through the charging gun battery. When the battery power drops to 10%, the power supply selects other batteries to be electrically connected to the charging gun, and uses the external network to charge the battery that has been powered until it is fully charged. In this way, the charging pile component increases the storage capacity by setting up multiple batteries, uses photovoltaic power generation to charge batteries with insufficient power during the day, and uses valley electricity to charge batteries with insufficient power at night, ensuring that the charging pile component can charge electric vehicles at any time without using peak power, thereby reducing the power consumption pressure of the external power grid during the day, and reducing the charging cost due to the use of photovoltaic power generation and valley electricity for charging.

[0009] Preferably, the power supply selection component includes a turntable that rotates around its own axis, a rotating unit that drives the turntable to rotate, and a trigger member arranged on the circumferential outer edge of the turntable. The power supply connectors of each power storage and power supply component are fixed in the embedded shell and distributed at intervals along the circumference of the turntable. The charging gun has an input connector that is arranged in the embedded shell and is opposite to the power supply connector. The input connector is connected to an elastic component that drives it away from the power supply connector, and the rotation path of the trigger member intersects with the input connector.

[0010] By adopting the above technical solution, the rotation unit is used to drive the turntable to rotate, so that the trigger member on the outer periphery of the turntable rotates. Since the input connector is connected to an elastic component that drives it away from the power supply connector, when the trigger member is in contact with and acts on the input connector, a gap is maintained between the power supply connector and the input connector, thereby disconnecting the electrical connection between the two. When the trigger member is in contact with and acts on the input connector, the input connector and the power supply connector are docked. Since the input connector is electrically connected to the charging gun, and the power supply connector is electrically connected to the battery, the electrical connection between the battery and the charging gun is realized at this time. At this time, after the charging gun is inserted into the car's charging port, the battery can charge the car.

[0011] Preferably, the elastic component includes a slider that slides in the embedded shell along the distribution direction of the power supply connector and the input connector, and a spring whose two ends are respectively connected to the slider and the inner wall of the embedded shell.

[0012] By adopting the above technical solution, the pressure generated by the deformation of the spring acts on the slider, so that the slider tends to slide in a direction parallel to the distribution of the input connector and the power supply connector, thereby ensuring that when the trigger member does not act on the input connector, it can drive the input connector away from the power supply connector.

[0013] Preferably, the trigger member is a rotatable trigger roller, and the rotation axis of the trigger roller is parallel to the rotation axis of the turntable.

[0014] By adopting the above technical solution, the trigger roller rotates around its own axis and around the axis of the turntable, thereby avoiding sliding friction caused by the trigger roller contacting the input connector. When the trigger roller contacts the input connector, the trigger roller can roll on the input connector, thereby reducing the friction between the two and alleviating wear on both.

[0015] Preferably, the rotating unit includes a rotating motor fixed in the embedded shell and electrically connected to the external grid.

[0016] By adopting the above technical solution, the rotary motor can drive the turntable in the embedded shell to rotate around its own axis, and the output end of the rotary motor is electrically connected to the external network, thereby ensuring that the rotary motor can operate normally and stably.

[0017] Preferably, the power supply connectors of each power storage and power supply assembly are distributed at equal intervals along the circumference of the turntable, and the rotating motor is a stepping motor.

[0018] By adopting the above technical solution, the power supply connectors and the stepper motor are used in combination with evenly spaced ones to ensure the accuracy of the rotation of the turntable driven by the rotating motor, so as to ensure that when it is necessary to control the electrical connection between a certain battery and the charging gun, the trigger on the turntable can accurately act on the input connector corresponding to the battery, so that the input connector and the power supply connector are connected.

[0019] Preferably, the photovoltaic charging connector and the external grid charging connector are both fixed in the embedded shell and arranged opposite each other, and the charging docking assembly includes a docking connector arranged between the photovoltaic charging connector and the external grid charging connector and with both ends facing the two respectively, and a translation unit that drives the docking connector to move along the distribution direction of the photovoltaic charging connector and the external grid charging connector.

[0020] By adopting the above technical solution, the translation unit can drive the docking connector to move between the photovoltaic charging connector and the external grid charging connector. On sunny days, the photovoltaic power generation device generates electricity, and the translation unit drives the docking connector to dock with the photovoltaic charging connector, so that the electricity generated by the photovoltaic power generation device can be transmitted to the battery to supply power to the battery; during the off-peak period, the translation unit drives the docking connector to dock with the external grid charging connector, so that the external power grid can charge the battery. Since this is the off-peak period, the charging cost of the battery is reduced.

[0021] Preferably, the translation unit includes a translation motor fixed in the embedded shell and electrically connected to the battery, a screw coaxially fixed to the output end of the translation motor, and a translation block threadedly matched with the screw and connected to the docking head.

[0022] By adopting the above technical solution, when driving the docking joint to move, the translation motor drives the screw to rotate, and the screw acts on the translation block through the thread, thereby driving the docking joint to move. When the docking joint is docked with the photovoltaic charging connector, the electricity generated by the photovoltaic power generation device can be transmitted to the battery, and when the docking joint is docked with the external grid charging connector, the external grid can charge the battery. When the docking joint is disconnected from the photovoltaic charging connector and the external grid charging connector, the battery is disconnected from the photovoltaic power generation device and the external grid, thereby avoiding continuous charging of the battery to cause waste of electricity and damage the battery life.

[0023] Preferably, the docking connector is plugged into and matched with the photovoltaic charging connector and the external network charging connector, and the power supply connector is plugged into and matched with the input connector.

[0024] By adopting the above technical solution, the contact area between the connector and the photovoltaic charging connector, the external network charging connector, and the contact area between the power supply connector and the input connector are increased by plug-in matching, ensuring that the battery can stably charge the car through the charging gun, and that the photovoltaic power generation device and the external power grid can charge the battery with insufficient power.

[0025] Preferably, the battery is electrically connected to a detector for detecting the remaining power of the battery.

[0026] By adopting the above technical solution, the remaining power of the battery can be conveniently detected using a detector. After the battery supplies power to the car through the charging gun, when the detector detects that the remaining power drops to 10%, the power supply selection component can disconnect the battery from the charging gun and select another battery to be electrically connected to the charging gun. When the battery is charged using a photovoltaic power generation device or an external network, the detector detects whether the battery is fully charged. When it is detected that the battery is fully charged, the device controls the connection connector to disconnect from the external network charging connector and the photovoltaic charging connector, thereby preventing power waste and reduced battery life caused by continuous charging.

[0027] In summary, compared with the prior art, the charging pile component with power storage function of the present invention increases the power storage capacity by setting multiple batteries, and uses photovoltaic power generation devices and external networks to charge batteries with insufficient power on sunny days and during off-peak hours respectively. Through the power supply selection component, batteries with sufficient power are used in turn to be electrically connected to the charging gun to charge the car, avoiding the use of peak power, reducing charging and electricity costs, and at the same time alleviating the power consumption pressure of the external power grid during the day. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a structural schematic diagram of another perspective of the present invention;

[0030] Figure 3 It is a schematic diagram of the internal structure of the embedded shell;

[0031] Figure 4 yes Figure 3 A top view of

[0032] Figure 5 This is a schematic diagram of the connection structure between the power supply selection component and two power storage and power supply components of the present invention;

[0033] Figure 6 This is a schematic diagram of the structure of the connection frame between the power supply selection component and one of the power storage and power supply components of the present invention;

[0034] Figure 7This is a schematic diagram of the connection structure between the power supply selection component and one of the power storage and power supply components from another perspective of the present invention;

[0035] Figure 8 yes Figure 7 A magnified view of part A;

[0036] Figure 9 yes Figure 7 A magnified view of part B;

[0037] Figure: 1. Charging pile body, 2. Photovoltaic power generation device, 3. Charging gun, 3a. Connecting electrode, 4. Embedded shell, 4a. Embedded barrel, 4b. Barrel cover, 5. Battery, 6. Power supply connector, 6a. Power supply connection plate, 6b. Power supply electrode, 7. Photovoltaic charging connector, 7a. Photovoltaic connection plate, 7b. Photovoltaic charging electrode, 8. External network charging connector, 8a. External network connection plate, 8b. External network charging electrode, 8c. External network connection line, 9. Power supply selection component, 9a. Turntable , 9b. Rotation unit, 9c. Trigger, 10. Input connector, 10a. Input connecting plate, 10b. Input electrode, 11. Elastic component, 11a. Slider, 11b. Spring, 11c. Slide rail, 12. Docking head, 13. Translation unit, 13a. Translation motor, 13b. Screw, 13c. Translation block, 13d. Bearing, 13e. Track, 13f. Sleeve, 14. Detector, 15. Processor, 16. External network connection electrode, 17. Sliding frame. DETAILED DESCRIPTION

[0038] The following embodiments are further described in conjunction with the accompanying drawings and examples. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention and are not intended to limit the scope of protection of the present invention.

[0039] like Figures 1-9 As shown, the charging device assembly with a power storage function of the present invention includes a charging pile body 1, a charging gun 3 is connected to one side wall of the charging pile body 1 through a cable, a photovoltaic power generation device 2 is arranged directly above the charging pile body 1, and the photovoltaic power generation device 2 includes a solar panel; a hollow embedded shell 4 is arranged directly below the charging pile body 1, and the embedded shell 4 consists of an embedded barrel 4a with the barrel mouth facing upward and a barrel cover 4b fixed on the embedded barrel 4a. Five pairs of external network connection electrodes 16 are arranged at the bottom of the embedded barrel 4a, of which four pairs are circumferentially evenly distributed on the periphery of the remaining pair, and the five external network connection electrodes 16 are all connected to the external network.

[0040] like Figure 3 and Figure 4As shown, an electricity storage and power supply mechanism is provided on the inner side of the embedded barrel 4a, which includes a power supply selection component 9 provided at the center of the embedded barrel 4a and four electricity storage and power supply components provided around the power supply selection component 9. A processor 15 is also fixed in the embedded barrel 4a; the power storage and power supply component includes a battery 5, a power supply connector 6, a photovoltaic charging connector 7, an external network charging connector 8 and a charging docking component, wherein the battery 5, the power supply connector 6 and the external network charging connector 8 are all fixedly connected to the inner bottom wall of the embedded barrel 4a, and the photovoltaic charging connector 7 is fixedly connected to the barrel cover 4b; the power supply connector 6 is electrically connected to the battery 5, and the power supply selection component 9 is used to electrically connect the battery 5 to the charging gun 3 in turn until the remaining power is less than 10%, and the charging docking component is used to control the battery 5 to be electrically connected to the photovoltaic charging connector 7 on sunny days, and to be electrically connected to the external network charging connector 8 during off-peak hours until the battery is fully charged.

[0041] In the charging pile assembly of the present invention, an embedded shell 4 is fixedly installed underground, and the charging pile body 1 is installed above ground. Four batteries 5 are installed within the embedded shell 4, thereby increasing the amount of energy that can be stored in the power storage and power supply. When the device is in use, the power supply selection component 9 controls the electrical connection between the battery 5 in one of the power storage and power supply components and the charging gun 3. In the initial state, the battery 5 is fully charged. When someone on the ground uses the charging gun 3 to plug it into the electric vehicle charging port for charging, the battery 5 electrically connected to the charging gun 3 charges the vehicle. When the battery 5's charge drops to 10%, the charging selection component disconnects the battery 5 from the charging gun 3 and selects another fully charged battery 5 to provide power.

[0042] For the charged battery, the processor 15 controls the charging docking component to be electrically connected to the external network charging connector 8 or the photovoltaic charging connector 7 and the battery 5 according to the current time period. The specific operation method is: if it is currently sunny, the charging docking component chooses to electrically connect the battery 5 to the photovoltaic power generation device 2, and the electric energy generated by the photovoltaic power generation device 2 is transmitted to the battery 5; if it is currently in a valley power period, the charging docking component chooses to electrically connect the battery 5 to the external network, and charges the battery 5 through the valley power of the external network until the battery 5 is fully charged, so that the battery 5 can be used to charge the car through the charging gun 3 later.

[0043] In this way, through the above-mentioned operation method, on the basis of increasing the storage capacity, the photovoltaic power generation device 2 and the valley electricity of the external power grid are used to charge the battery 5, avoiding the use of peak electricity to charge the battery 5, which not only reduces the power consumption pressure of the external power grid during the day, but also reduces the charging and electricity costs.

[0044] In order to facilitate the electrical connection between the battery 5 and the charging gun 3, the photovoltaic power generation device 2 and the external network, so as to facilitate the power supply and charging operation of the battery 5, as shown in FIG. Figure 5-Figure 9As shown, the power supply connector 6 includes a power supply connection plate 6a fixed on the inner bottom wall of the embedded barrel 4a, and two power supply electrodes 6b are fixed at both ends of the power supply connection plate 6a on the side facing away from the battery 5, and the two power supply electrodes 6b are respectively electrically connected to the two electrodes of the battery 5; the photovoltaic charging connector 7 includes a long strip photovoltaic connection plate 7a fixed under the barrel cover 6b, and two photovoltaic charging electrodes 7b are respectively provided at both ends of the photovoltaic connection plate 7a, and the two photovoltaic charging electrodes 7b are respectively electrically connected to the two electrodes of the battery 5; the external grid charging connector 8 includes a long strip external grid connection plate 8a fixed directly above the battery 5, and two external grid charging electrodes 8b are respectively provided at both ends of the external grid connection plate 8a, and the two external grid charging electrodes 8b are respectively electrically connected to the two electrodes of the battery 5 and are arranged directly opposite to the two photovoltaic charging electrodes 7b. The two external grid charging electrodes 8b are also electrically connected to one of the pairs of external grid connection electrodes 16 at the bottom of the embedded shell 4 through the external grid connection line 8c.

[0045] In order to facilitate the electrical connection between the charging gun 3 and one of the batteries 5 in the embedded shell 4, the input end of the charging gun 3 is provided with two connecting electrodes 3a, which are fixed under the barrel cover 4b. The two connecting electrodes 3a are connected to the input connector 10, which is arranged in the embedded barrel 4a. The input connector 10 includes a long input connecting plate 10a and input electrodes 10b arranged at both ends of the input connecting plate 10a. The two input electrodes 10b are respectively arranged opposite the two power supply electrodes 6b and are respectively electrically connected to the two connecting electrodes 3a.

[0046] The power supply selection component 9 includes a turntable 9a that rotates around its own axis. A rotating unit 9b that drives the turntable 9a to rotate is provided between the turntable 9a and the inner bottom wall of the embedded barrel 4a. The rotating unit 9b is a rotating motor fixed to the inner bottom wall of the embedded barrel 4a. The rotating motor is a stepper motor with a step angle of 90°. The power supply interfaces of the stepper motor and the processor 15 are electrically connected to a pair of external network connection electrodes 16 at the center below the embedded barrel 4a. A trigger member 9c is fixed to the outer periphery of the turntable 9a. The trigger member 9c is a trigger roller that rotates around its own axis, and its own rotation axis is parallel to the rotation axis of the turntable 9a. The power supply connectors 6 of each power storage and power supply component are evenly distributed on the cylindrical body with the rotation axis of the turntable 9a as the center line. On the surface, the turntable 9a is arranged between each power supply connector 6; the input connector 10 is connected to an elastic component 11 that drives it away from the power supply connector 6, and the rotation path of the trigger member 9c intersects with the input connector 10; wherein the elastic component 11 includes a U-shaped slide rail 11c fixed to the inner bottom wall of the embedded barrel 4a, and the length direction of the slide rail 11c extends along the distribution direction of the input connector 10 and the power supply connector 6. There are two slide rails 11c side by side, which are respectively arranged directly below the two ends of the input connecting plate 10a. A slider 11a is slidably fitted on the slide rail 11c, and the slider 11a is fixedly connected to the input connecting plate 10a of the input connector 10. The side of the slider 11a adjacent to the battery 5 is connected to one end of the slide rail 11c through a spring 11b.

[0047] When the power supply selection component 9 is in operation, the rotating unit 9b drives the turntable 9a to rotate around its axis by a certain angle, so that the trigger 9c on the outer edge of the turntable 9a contacts the input connector 10 and is squeezed on the side of the input connecting plate 10a adjacent to the turntable 9a. Under the sliding cooperation of the slider 11a and the slide rail 11c, the input connecting plate 10a is driven to approach the power supply connecting plate 6a, and at the same time, the spring 11b is compressed, and finally the two input electrodes 10b on the input connecting plate 10a are respectively connected to the two power supply electrodes 6b on the power supply connecting plate 6a. Since the power supply electrode 6b is electrically connected to the battery 5, and the input electrode 10b is electrically connected to the charging gun 3 through the connecting electrode 3a, the battery 5 is finally electrically connected to the charging gun 3. When people insert the charging gun 3 into the charging port of the car, the battery 5 can be charged by the charging gun 3.

[0048] The rotating unit 9b continues to drive the turntable 9a to rotate, so that the trigger member 9c on the turntable 9a is separated from the input connecting plate 10a. The compressed spring 11b restores its original shape, pushing the slider 11a to move along the slide rail 11c, so that the input connecting plate 10a moves away from the power supply connecting plate 6a, and finally separates the input electrode 10b from the power supply electrode 6b, thereby disconnecting the battery 5 from the charging gun 3.

[0049] Rotation unit 9b utilizes a stepper motor with a 90° step angle, enabling precise control of the rotation angle of turntable 9a. Each time the turntable 9a rotates, its rotation angle is precisely 90°, ensuring that the trigger 9c engages the input connector 10 corresponding to one of the power storage and power supply components while simultaneously disengaging the input connection plate 10a of the other input connector 10. It should be noted that, as an alternative to achieving similar results, the number of power storage and power supply components can be selected from multiple sources, for example, six. In this case, the rotation unit 9b can utilize a stepper motor with a 60° step angle. In this embodiment, both the rotation unit 9b and the processor 15 are electrically connected to a pair of external grid connection electrodes 16 located at the bottom center of the embedded barrel 4a, ensuring the normal and stable operation of the processor 15 and the rotation unit 9b. The trigger 9c utilizes a rotating roller that rolls on the input connection plate 10a, reducing wear between the trigger 9c and the input connection plate 10a.

[0050] The charging docking assembly includes a docking connector 12 that is arranged between the photovoltaic charging connector 7 and the external grid charging connector 8 and moves along the distribution direction of the two. There are two docking connectors 12, which are used to electrically connect to the two photovoltaic charging electrodes 7b of the photovoltaic charging connector 7 on sunny days and to electrically connect to the two external grid charging electrodes 8b of the external grid charging connector 7 during off-peak periods; the docking connector 12 is connected to a translation unit 13 that drives its movement.

[0051] The translation unit 13 includes a translation motor 13a fixed above the battery 5, and the output end of the translation motor 13a is fixedly connected to the coaxial centerline with a screw rod 13b, and the end of the screw rod 13b away from the translation motor 13a is provided with a bearing 13d fixedly connected to the battery 5, and a translation block 13c is threadedly engaged on the screw rod 13b, and both sides of the translation block 13c are fixedly connected with a sliding sleeve 13f, and the sliding sleeve 13f is slidably engaged with a track 13e fixedly connected to the battery 5 and extending axially along the screw rod 13b, and both ends of the sliding sleeve 13f are provided with a sliding frame 17 that slides with the track 13e, and the two sliding frames 17 are respectively fixed below the two ends of the docking joint 13.

[0052] When the position of docking connector 13 needs to be adjusted, translation motor 13a is activated, driving translation screw 13b to rotate under the support of bearing 13d. Screw 13b acts on translation block 13c through a thread, causing translation block 13c to move axially along screw 13b. This in turn drives sleeve 13f to slide on track 13e, acting on one of the sliding frames 17, driving sliding frame 17 along track 13e, thereby moving docking connector 12. When the two docking connectors 12 are connected to the two photovoltaic charging electrodes 7b of photovoltaic charging connector 7, photovoltaic power generation device 2 is electrically connected to battery 5, allowing photovoltaic power generation device 2 to charge battery 5. When the two docking connectors 12 are electrically connected to the two external charging electrodes 8b of external charging connector 8, the battery 5 is connected to the external power grid, allowing the external power grid to charge battery 5. After the battery is fully charged, translation unit 13 adjusts the position of docking connector 12 to disengage it from photovoltaic charging connector 7 and external charging connector 8.

[0053] A detector 14 is fixed to the battery 5 and electrically connected thereto. The detector 14 is used to detect the remaining power of the battery 5 and is electrically connected to the processor 15. The detector 14 can detect the remaining power of the battery 5 and transmit a remaining power signal to the processor 15. In this way, when the battery 5 is charged by the charging gun 3, by detecting its remaining power, if its power level drops below 10%, the processor 15 controls the power selection component to disconnect the battery 5 from the charging gun 3. On the one hand, this prevents the battery 5 from being completely exhausted and thus shortening its service life. On the other hand, it allows the battery 5 to retain a certain amount of power to power the translation motor 13a and the detector 14. When the battery 5 is charged by off-peak power from the external power grid or the photovoltaic power generation device 2, when the battery 5 is fully charged, the processor 15 controls the translation unit 13 to operate to disconnect the docking connector 12 from the photovoltaic power generation device 2 and the external power grid, thereby avoiding continuous charging of the battery 5, which would waste power and shorten the service life of the battery 5.

[0054] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A charging pile assembly with a power storage function, comprising a charging pile body (1) and a photovoltaic power generation device (2) arranged on the top of the charging pile body (1), wherein the charging pile body (1) is connected to a charging gun (3), and is characterized in that: The bottom of the charging pile body (1) is provided with a hollow embedded shell (4), and a power storage and power supply mechanism is provided in the embedded shell (4). The power storage and power supply mechanism includes a power supply selection component (9) and at least two power storage and power supply components. The power storage and power supply components include a battery (5), a power supply connector (6) electrically connected to the electrode of the battery (5), a photovoltaic charging connector (7) electrically connected to the output end of the photovoltaic power generation device (2), an external network charging connector (8) electrically connected to the external network, and a charging docking component. The power supply selection component (9) is used to sequentially electrically connect the battery (5) to the charging gun (3) until the remaining power is less than 10%. The charging docking component is used to control the battery (5) to connect to the photovoltaic charging connector (7) on sunny days and to connect to the external network on valley days. The power supply selection component (9) is electrically connected to the external network charging connector (8) until it is fully charged. The power supply selection component (9) includes a turntable (9a) rotating around its own axis, a rotating unit (9b) driving the turntable (9a) to rotate, and a trigger member (9c) arranged on the circumferential outer edge of the turntable (9a). The power supply connectors (6) of each power storage and power supply component are fixed in the embedded shell (4) and distributed at intervals along the circumference of the turntable (9a). The charging gun (3) has an input connector (10) arranged in the embedded shell (4) and facing the power supply connector (6). The input connector (10) is connected to an elastic component (11) driving it away from the power supply connector (6). The rotation path of the trigger member (9c) intersects with the input connector (10); The rotating unit is a stepper motor with a step angle of 90°.

2. The charging pile assembly with power storage function according to claim 1, characterized in that: The elastic component (11) comprises a slider (11a) that slides in the embedded shell (4) along the distribution direction of the power supply connector (6) and the input connector (10), and a spring (11b) whose two ends are respectively connected to the slider (11a) and the inner wall of the embedded shell (4).

3. The charging pile assembly with power storage function according to claim 1, characterized in that: The trigger member (9c) is a rotatably arranged trigger roller, and the rotation axis of the trigger roller is parallel to the rotation axis of the turntable (9a).

4. The charging pile assembly with power storage function according to claim 1, characterized in that: The rotating unit (9b) comprises a rotating motor fixed in the embedded shell (4) and electrically connected to the external grid.

5. The charging pile assembly with power storage function according to claim 4, characterized in that: The power supply connectors (6) of each power storage and power supply assembly are distributed at equal intervals along the circumference of the turntable (9a).

6. The charging pile assembly with power storage function according to claim 1, characterized in that: The photovoltaic charging connector (7) and the external network charging connector (8) are both fixed in the embedded shell (4) and arranged opposite each other. The charging docking assembly comprises a docking connector (12) arranged between the photovoltaic charging connector (7) and the external network charging connector (8) and having two ends facing each other, and a translation unit (13) driving the docking connector (12) to move along the distribution direction of the photovoltaic charging connector (7) and the external network charging connector (8).

7. The charging pile assembly with power storage function according to claim 6, characterized in that: The translation unit (13) comprises a translation motor (13a) fixed in the embedded shell (4) and electrically connected to the storage battery (5), a screw rod (13b) coaxially fixed to the output end of the translation motor (13a), and a translation block (13c) threadedly engaged with the screw rod (13b) and connected to the docking head (12).

8. The charging pile assembly with power storage function according to claim 7, characterized in that: The docking connector (12) is plugged into and matched with the photovoltaic charging connector (7) and the external network charging connector (8), and the power supply connector (6) is plugged into and matched with the input connector (10).

9. The charging pile assembly with power storage function according to claim 1, characterized in that: The battery (5) is electrically connected to a detector (14) for detecting the remaining power of the battery.

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