Solar energy and gravity combined power generation and energy storage system

Abstract

The utility model discloses a solar energy and gravity combined power generation and energy storage system, which comprises a solar power generation assembly, an inversion controller, an energy storage battery, a charging and discharging station, a generator, a gravity power generation assembly and a lifting motor, and is characterized in that the gravity power generation assembly comprises a lifting frame and a battery platform arranged on the lifting frame; according to the utility model, the gravity power generation assembly utilizes electric energy exceeding the energy storage upper limit of the energy storage battery to generate power at night through the gravity power generation assembly, so that the power generation efficiency is improved, and the power generation efficiency is improved. The utilization rate of energy can be improved; besides, through the charging and discharging movable contact structure and the charging and discharging fixed contact structure, the charging and discharging processes of the energy storage battery are carried out on the ground, the charging and discharging movable contact structure is connected with the electrodes of the energy storage battery, wiring of the movement section of the energy storage battery can be omitted, and safety is higher.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage, in particular to a solar gravity composite power generation and energy storage system. Background Art

[0002] As a clean and renewable energy source, solar energy has received increasing attention in its development and utilization. In the prior art, solar power generation is carried out through solar photovoltaic panels, and electric energy is stored through energy storage batteries. However, when the energy storage limit of the energy storage battery is reached, the excess electric energy can only be wasted, and the utilization rate of solar power generation cannot be improved. Summary of the Utility Model

[0003] The utility model provides a solar gravity composite power generation and energy storage system, which uses the electric energy exceeding the energy storage limit of the energy storage battery through a gravity power generation component, and generates electricity through the gravity power generation component at night or under insufficient light, thereby improving the utilization rate of energy.

[0004] A solar gravity composite power generation and energy storage system includes a solar power generation component, an inverter controller, an energy storage battery, a charging and discharging station, a generator, and a lifting motor, and further includes a gravity power generation component. The gravity power generation component includes a lifting frame and a battery platform installed on the lifting frame;

[0005] The lifting motor is used to drive the battery platform to rise on the lifting frame;

[0006] The energy storage battery is installed on the battery platform;

[0007] A charging and discharging electric contact structure connected to the energy storage battery is arranged on the bottom side of the battery platform, and a corresponding charging and discharging static contact structure is installed on the base of the lifting frame. The charging and discharging static contact structure is connected to the charging and discharging station.

[0008] It further includes a gearbox, a winding roller, and a pulling rope. One end of the pulling rope is connected to the battery platform, and the other end is connected to the winding roller;

[0009] The gearbox is a single-input shaft and double-output shaft type gearbox. The winding roller is installed on the input shaft, and the output ends of the generator and the lifting motor are respectively connected to the two output shafts.

[0010] The charging and discharging electric contact structure includes a housing one, a protective cover one, and a contact one located inside the housing one;

[0011] The protective cover one covers the contact one, and the contact one is connected to the energy storage battery;

[0012] A spring one is further installed inside the housing one, and the protective cover one is connected to the spring one.

[0013] The charging and discharging static contact includes a second housing, a second contact disposed within the second housing, and a second protective cover hinged to the second housing. The second protective cover can enclose the top port of the second housing.

[0014] The second protective cover has an ear plate portion, and a push plate corresponding to the ear plate portion is fixedly connected to the first housing. During the descent of the battery platform, the push plate can abut against the ear plate portion, thereby opening the second protective cover, and the first contact extends into the second housing to contact the second contact.

[0015] A support platform is fixedly connected within the second protective cover. After the second protective cover is opened, as the battery platform descends, the first protective cover can be blocked by the support platform, while the first contact continues to descend until it contacts the second contact.

[0016] The number of the second protective covers is two, and the second protective covers are connected to the second housing through second springs.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model uses the electric energy exceeding the energy storage upper limit of the energy storage battery through the gravity power generation component, and during the night or when the light is insufficient, the gravity power generation component is used to generate electricity, thereby improving the energy utilization rate;

[0018] In addition, a charging and discharging moving contact structure and a charging and discharging static contact structure are designed, which can reduce the influence of rainwater and dust on the poor contact of the two contacts, and reduce the occurrence of problems in the charging and discharging of the energy storage battery due to poor contact of the contacts;

[0019] In addition, it is realized that both the charging and discharging processes of the energy storage battery are carried out on the ground. By connecting the energy storage battery electrode through the charging and discharging moving contact structure, the wiring of the moving section of the energy storage battery can be omitted, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is the principle block diagram of the present utility model;

[0021] Figure 2 is the structural schematic diagram of the gravity power generation component of the present utility model;

[0022] Figure 3 is the cross-sectional view when the charging and discharging moving contact structure and the charging and discharging static contact structure of the present utility model are docked;

[0023] Figure 4 is the exploded view when the charging and discharging moving contact structure and the charging and discharging static contact structure of the present utility model are docked.

[0024] Description of the reference numerals:

[0025] 1 - Solar power generation module, 2 - Inverter controller, 3 - Energy storage battery, 4 - Charging and discharging station, 5 - Generator, 6 - Lifting motor, 7 - Lifting frame, 8 - Battery platform, 9 - Charging and discharging electric contact structure, 10 - Charging and discharging static contact structure, 11 - Gearbox, 12 - Winding roller, 13 - Pulling rope, 14 - Guide roller, 21 - Outer shell one, 22 - Protective cover one, 23 - Contact one, 24 - Pushing plate, 25 - Outer shell two, 26 - Protective cover two, 27 - Ear plate part, 28 - Support platform, 29 - Contact two, 30 - Spring one, 31 - Spring two. Detailed implementation manner

[0026] The following combines the drawings to describe in detail a specific implementation manner of the present invention. However, it should be understood that the protection scope of the present invention is not limited by the specific implementation manner.

[0027] As Figures 1 to 4 shown, a solar gravity composite power generation and energy storage system provided by an embodiment of the present invention includes a solar power generation module 1, an inverter controller 2, an energy storage battery 3, a charging and discharging station 4, a generator 5, a lifting motor 6, and a gravity power generation component. The gravity power generation component includes a lifting frame 7 and a battery platform 8 installed on the lifting frame 7. The lifting motor 6 is used to drive the battery platform 8 to rise on the lifting frame 7. The energy storage battery 3 is installed on the battery platform 8. A charging and discharging electric contact structure 9 connected to the energy storage battery 3 is provided on the bottom side of the battery platform 8, and a corresponding charging and discharging static contact structure 10 is installed on the base of the lifting frame 7. The charging and discharging static contact structure 10 is connected to the charging and discharging station 4.

[0028] In addition, the gravity power generation component further includes a gearbox 11, a winding roller 12, and a pulling rope 13. One end of the pulling rope 13 is connected to the battery platform 8, and the other end is connected to the winding roller 12. The gearbox 11 is a single-input shaft and double-output shaft type gearbox 11. The winding roller 12 is installed on the input shaft, and the output ends of the generator 5 and the lifting motor 6 are respectively connected to the two output shafts.

[0029] The solar power generation module 1 of this embodiment uses a solar photovoltaic panel power generation module.

[0030] During the day, the electricity generated by the solar power generation module 1 passes through the inverter controller 2 and is preferentially stored in the energy storage battery 3. The inverter controller 2 determines whether the energy storage battery 3 is fully charged. When the energy storage battery 3 is fully charged, the inverter controller 2 will drive the lifting motor 6. The lifting motor 6 winds and pulls the rope 13 through the transmission of the gearbox 11, thereby raising the battery platform 8 until the battery platform 8 moves to the top of the lifting frame 7. At night or when the light intensity is low and the solar panels cannot provide power for household appliances, the inverter controller 2 preferentially lowers the battery platform 8 by its own weight, and drives the generator 5 to generate electricity by pulling the rope 13. When the battery platform 8 drops to the ground by its own gravity, the charging and discharging moving contact structure 9 contacts the charging and discharging static contact structure 10, and the electricity stored in the energy storage battery 3 is released through the charging and discharging station to achieve continuous power supply at night;

[0031] The specific internal structure of the gearbox 11 is introduced as follows: A gear one is connected to the shaft at the input end through a spline, that is, the gear one can slide on the shaft at the input end and rotate synchronously with the input end. A gear two and a gear three are respectively connected to the two output ends. There is also a fork structure in the gearbox 11. The fork structure includes a cylinder and a push fork. The cylinder pushes the push fork to change the position of the gear one, enabling the gear one to be meshed and connected only with the gear two or the gear one to be meshed and connected only with the gear three, thereby respectively completing the power generation of the engine and the lifting of the battery platform 8 by the lifting motor 6;

[0032] A guide roller 14 is installed on the lifting frame 7 to guide the rope 13;

[0033] In addition, an electric control brake structure (not shown in the figure) for clamping the rope 13 to prevent the rope 13 from moving can be provided on the guide roller 14. This is an existing structure, so it will not be elaborated here. The electric control brake structure and the cylinder are both communicatively connected to the controller;

[0034] The input and output in the single input end and double output ends of the gearbox 11 are only for distinction and do not necessarily represent its input end and output end. When driving the battery platform 8 to rise, the end connected to the lifting motor 6 is the input end, and the end connected to the winding roller 12 is the output end. When the motor platform descends, the end connected to the winding roller 12 is the input end, and the end connected to the generator 5 is the output end;

[0035] Since the lifting frame 7 is located outdoors, it can reduce adverse situations such as dust and poor contact between the charging and discharging moving contact structure 9 and the charging and discharging static contact structure 10 in rainy days. The following charging and discharging moving contact structure 9 and charging and discharging static contact structure 10 are designed in this embodiment:

[0036] The charging and discharging moving contact structure 9 includes a housing one 21, a protective cover one 22 and a contact one 23 located inside the housing one 21;

[0037] A protective cover 22 covers the contact 23, and the contact 23 is connected to the energy storage battery 3;

[0038] A spring 30 is also installed inside the housing 21, and the protective cover 22 is connected to the spring 30;

[0039] The charge and discharge static contact includes a housing 25, a contact 29 disposed inside the housing 25, and a protective cover 26 hinged to the housing 25. The protective cover 26 can close the top port of the housing 25;

[0040] The protective cover 26 has an ear plate portion 27. A push plate 24 corresponding to the ear plate portion 27 is fixedly connected to the housing 21. During the downward movement of the battery platform 8, the push plate 24 can abut against the ear plate portion 27, thereby opening the protective cover 26, and the contact 23 extends into the housing 25 to contact the contact 29;

[0041] A support platform 28 is fixedly connected inside the protective cover 26. After the protective cover 26 is opened, as the battery platform 8 descends, the protective cover 22 can be blocked by the support platform 28, and the contact 23 continues to descend until it contacts the contact 29;

[0042] The protective cover 26 is L-shaped and there are two of them. The protective cover 26 is connected to the housing 25 through a spring 31. The spring 31 pulls the protective cover 26 tightly, so that the protective cover 26 closes the top opening of the housing 25;

[0043] The contact 29 is designed as two C-shaped structures facing away from each other, which plays a buffering role when docking with the contact 23 to avoid hard contact damage;

[0044] Since the contact 23 is located on the lower side of the battery platform 8 and is not easily invaded by rainwater, the bottom of the protective cover 22 is not closed. When the battery platform 8 is at a high position, the bottom end of the protective cover 22 should be lower than the bottom end of the contact 23, which can also reduce the dust on the contact 23. The contact 29 located on the base of the lifting frame 7 is easily affected by rainwater intrusion, so the protective cover 26 is used for sealing. In addition, the top end of the protective cover 26 is a slope, so as to reduce the rainwater staying time and avoid the situation that rainwater penetrates into the housing 25 due to long-term rain. During the docking process of the contact 23 and the contact 29, the two protective covers 26 open outwards. Therefore, even if it has just rained or is in a light rain state, this device can be used normally.

[0045] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit and basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

[0046] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A solar-gravity combined power generation and energy storage system, comprising a solar power generation component (1), an inverter controller (2), an energy storage battery (3), a charging and discharging station (4), a generator (5) and a lifting motor (6), characterized in that: It also includes a gravity power generation component, the gravity power generation component including a lifting frame (7) and a battery platform (8) mounted on the lifting frame (7); The lifting motor (6) is used to drive the battery platform (8) to rise on the lifting frame (7); The energy storage battery (3) is installed on the battery platform (8); The bottom side of the battery platform (8) is provided with a charging and discharging electric contact structure (9) connected to the energy storage battery (3), and a corresponding charging and discharging static contact structure (10) is installed on the base of the lifting frame (7), and the charging and discharging static contact structure (10) is connected to the charging and discharging station (4).

2. A solar-gravity combined power generation and energy storage system as claimed in claim 1, characterized in that: It also includes a gearbox (11), a winding roller (12) and a pull rope (13), one end of the pull rope (13) is connected to the battery platform (8), and the other end is connected to the winding roller (12); The gearbox (11) is a single-input-shaft dual-output-shaft type gearbox (11), the winding roller (12) is mounted on the input shaft, and the output ends of the generator (5) and the lifting motor (6) are respectively connected to the two output shafts.

3. A solar-gravity combined power generation and energy storage system as claimed in claim 1, characterized in that: The charging and discharging electric contact structure (9) comprises a shell one (21), a protective cover one (22) and a contact one (23) located inside the shell one (21); The protective cover 1 (22) covers the outside of the contact 1 (23), and the contact 1 (23) is connected to the energy storage battery (3); A spring (30) is also installed in the housing (21), and the protective cover (22) is connected to the spring (30).

4. A solar-gravity combined power generation and energy storage system as claimed in claim 3, characterized in that: The charging and discharging static contact comprises a second shell (25), a second contact (29) arranged in the second shell (25), and a second protective cover (26) hinged on the second shell (25), wherein the second protective cover (26) can close the top port of the second shell (25).

5. A solar-gravity combined power generation and energy storage system as claimed in claim 4, characterized in that: The second protective cover (26) has an ear plate portion (27), and the first outer shell (21) is fixedly connected with a push plate (24) corresponding to the ear plate portion (27). When the battery platform (8) is lowered, the push plate (24) can abut against the ear plate portion (27), thereby opening the second protective cover (26) and allowing the first contact (23) to extend into the second outer shell (25) and contact the second contact (29).

6. A solar-gravity combined power generation and energy storage system as claimed in claim 5, characterized in that: A support platform (28) is fixedly connected inside the second protective cover (26). When the second protective cover (26) is opened, as the battery platform (8) descends, the first protective cover (22) can be blocked by the support platform (28), and the first contact (23) continues to descend until it contacts the second contact (29).

7. A solar-gravity combined power generation and energy storage system as claimed in claim 4, characterized in that: The number of the second protective cover (26) is two, and the second protective cover (26) is connected to the second housing (25) via a second spring (31).

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