Battery integrated module for photovoltaic energy storage system

Abstract

The application relates to the technical field of photovoltaic energy storage devices, and discloses a battery integrated module for a photovoltaic energy storage system, which comprises a photovoltaic assembly, a power consumption assembly and a battery assembly, the photovoltaic assembly is connected with the power consumption assembly, the power consumption assembly is connected with the battery assembly, the photovoltaic assembly converts light energy into electric energy to provide energy for the battery assembly, the photovoltaic assembly comprises a floating plate and a photovoltaic cell plate, the floating plate is arranged on the water surface, a gravity center rod is hingedly connected to the bottom of the photovoltaic cell plate, the gravity center rod is movably inserted into the floating plate, a gravity center ball is connected to the bottom of the gravity center rod, and the gravity center ball is located underwater; when the floating plate shakes due to the fluctuation of the water surface, the photovoltaic cell plate tries to keep still as much as possible under the influence of the weight of the gravity center ball, thereby reducing the adverse influence of the fluctuation of the water surface on the photovoltaic cell plate, improving the stability and reliability of the photovoltaic assembly in the battery integrated module for the photovoltaic energy storage system, reducing energy consumption loss, and improving economic benefits.

Description

Technical Field

[0001] This invention relates to the field of photovoltaic energy storage equipment technology, specifically to a battery integrated module for a photovoltaic energy storage system. Background Technology

[0002] A photovoltaic (PV) energy storage system is a system that uses solar energy to generate electricity through photovoltaic energy storage. Simply put, a PV energy storage system consists of two main components: PV equipment and energy storage equipment. The PV equipment absorbs solar energy and converts it into electricity, while the energy storage equipment stores the electricity generated by the PV equipment. When the PV system's power is insufficient, the energy storage system converts the stored electricity into the required AC power for grid supply. Specifically, it can be divided into off-grid PV power generation systems, on-grid and off-grid energy storage systems, grid-connected PV energy storage systems, and microgrid energy storage systems.

[0003] Existing technologies connect photovoltaic (PV) panels to electrical appliances, which in turn connect to energy storage batteries. Since large-scale PV panel installations require significant space, they are often installed in low-traffic environments such as rooftops or water surfaces. Water-based PV panels are typically installed using foam floats or inflatable cushions, with multiple floats connected by ropes. Each float is supported by an angled bracket, placing a PV panel at an angle. However, the water environment is affected by wind and underwater activity. Fluctuations in the water directly impact the floats, affecting the stability of the PV panels and consequently the overall solar energy storage system's battery integration module's light energy conversion efficiency. Therefore, this approach does not meet current requirements. To address this, we propose a battery integration module for PV energy storage systems. Summary of the Invention

[0004] This invention provides a battery integration module for a photovoltaic energy storage system, which offers the following advantages: it solves the problem mentioned in the background art where existing floating photovoltaic panels are typically used with foam floats or inflatable cushions, connecting multiple floats together with ropes, and each float has an angled bracket that tilts a photovoltaic panel. However, the water surface environment is affected by wind and underwater activities; any fluctuations in the water surface directly affect the floats, thus impacting the stability of the photovoltaic panel and the overall light energy conversion efficiency of the photovoltaic energy storage system's battery integration module.

[0005] This invention provides the following technical solution: a battery integrated module for a photovoltaic energy storage system, comprising a photovoltaic module, an electrical component, and a battery module. The photovoltaic module is connected to the electrical component, and the electrical component is connected to the battery module. The photovoltaic module converts light energy into electrical energy to provide energy for the battery module. The photovoltaic module includes a floating plate and a photovoltaic panel. The floating plate is disposed on the water surface. A center of gravity rod is hinged to the bottom of the photovoltaic panel. The center of gravity rod movably passes through the floating plate. A center of gravity ball is connected to the bottom of the center of gravity rod, and the center of gravity ball is located underwater.

[0006] As an optional solution for a battery integration module for a photovoltaic energy storage system according to the present invention, wherein: the floating plate is a foam board, the side of the floating plate is equipped with connecting strips, a plurality of floating plates are provided, the plurality of connecting strips are mutually restrained by ropes, and the plurality of floating plates are interconnected.

[0007] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, wherein: the photovoltaic panel is tilted during normal operation, the center of gravity rod is horizontally and vertically arranged, the center of gravity rod is located at the center of gravity at the bottom of the photovoltaic panel, and the center of gravity ball is set as a stone ball or sandbag.

[0008] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, wherein: a circular movable hole is provided in the middle of the floating plate, the center of gravity rod passes through the circular movable hole, a hemispherical movable seat is provided inside the circular movable hole, a hemispherical connecting seat is installed in the middle of the center of gravity rod, the hemispherical connecting seat and the hemispherical movable seat are correspondingly and convexly fitted, and the hemispherical connecting seat and the hemispherical movable seat are slidably connected by a groove.

[0009] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, the center of gravity rod includes a rod head, a rod body and a connecting screw, a damping shaft is installed at the bottom of the photovoltaic panel, the rod head is connected to the damping shaft, the rod body is inserted into the inside of the rod head, the connecting screw passes through the rod head and is connected to the rod body.

[0010] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, wherein: the floating plate has a movable cavity inside, the movable cavity is connected to the circular movable hole, a transmission gear is rotatably installed inside the movable cavity, and an arc-shaped rack is provided on the bottom side of the hemispherical connecting seat, and the transmission gear meshes with the arc-shaped rack.

[0011] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, wherein: when the photovoltaic panel is in a clean state, the photovoltaic panel is horizontally arranged and the center of gravity rod is inclined.

[0012] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, wherein: a pedal is slidably installed on the upper side of the floating plate, a connecting rod is connected to the bottom of the pedal, the connecting rod is slidably disposed inside the movable cavity, and a transmission rack is horizontally and vertically disposed at the end of the connecting rod, the transmission rack meshing with the transmission gear.

[0013] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, a reset spring is installed at the bottom of the pedal. The reset spring is configured as a compression spring, the top end of the reset spring is installed at the bottom of the pedal, and the bottom end of the reset spring is fixedly connected to the floating plate.

[0014] As an optional solution for a battery integrated module for a photovoltaic energy storage system according to the present invention, a reset spiral spring is installed on the side of the transmission gear, one end of the reset spiral spring is connected to the central shaft of the transmission gear, and the other end of the reset spiral spring is connected to the inner wall of the floating plate.

[0015] The present invention has the following beneficial effects:

[0016] 1. This photovoltaic energy storage system uses battery integrated modules. Utilizing existing technology, the photovoltaic panels in the system are placed on the water surface, reducing land occupation space. Furthermore, the water surface minimizes shading by buildings, allowing for full sunlight exposure for the photovoltaic panels. Building upon existing technology, the direct connection between the photovoltaic panels and the floating platform is eliminated. Instead, the photovoltaic panels are supported by a center-of-gravity rod in conjunction with the floating platform. A center-of-gravity sphere is added to the bottom of the center-of-gravity rod, modularizing the photovoltaic panels, center-of-gravity rod, and center-of-gravity sphere. These three structures are connected via hemispherical connectors and... The hemispherical movable seat connects the center of gravity rod to the floating plate, providing stable support for both the center of gravity rod and the photovoltaic panel. The center of gravity rod and the photovoltaic panel can rotate, making the photovoltaic panel flexible in use. Because the center of gravity sphere controls the center of the photovoltaic panel, when the floating plate sways due to water surface fluctuations, the photovoltaic panel remains as stationary as possible due to the weight of the center of gravity sphere. This reduces the adverse effects of water surface fluctuations on the photovoltaic panel, improves the stability and reliability of the photovoltaic modules in the battery integrated module of the photovoltaic energy storage system, reduces energy loss, and improves economic efficiency.

[0017] 2. The battery integrated module of this photovoltaic energy storage system, through the detachable connection between the pole head and the pole body, facilitates independent maintenance or replacement of photovoltaic panels, improves the convenience of manual operation, shortens the manual operation time, and thus improves the safety of manual water operation of the photovoltaic modules of the battery integrated module of the photovoltaic energy storage system.

[0018] 3. The photovoltaic energy storage system uses a battery integrated module. Through the transmission cooperation between the pedal, connecting rod, transmission rack, and transmission gear, when the operator steps on the pedal, the pedal moves downward, causing the connecting rod to move downward. The connecting rod then moves the transmission rack downward, causing the transmission rack and transmission gear to mesh. The transmission rack then moves the transmission gear, causing the transmission gear to rotate and tilting the hemispherical connecting seat. This ultimately changes the angle of the center of gravity rod and the photovoltaic panel, turning the photovoltaic panel from its original tilted position to a horizontal position, making it easier for operators to clean. Operators only need to step on the pedal to control the angle change of the photovoltaic panel, reducing operation steps and improving cleaning convenience and efficiency. At the same time, through the cooperation of the return spring and return spiral spring, when the operator releases the pedal, the pedal, connecting rod, and transmission gear will automatically reset, allowing the photovoltaic panel to return to its original angle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the photovoltaic energy storage system structure of the present invention.

[0020] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0021] Figure 3 This is a three-dimensional cross-sectional structural diagram of the present invention.

[0022] Figure 4 This is a schematic diagram of the first cross-sectional structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the second cross-sectional structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the structure of the photovoltaic panel for cleaning according to the present invention.

[0025] Figure 7 This is an enlarged structural diagram of point A in the present invention.

[0026] Figure 8 This is a partially enlarged structural schematic diagram of the present invention.

[0027] In the diagram: 10, Photovoltaic module; 20, Power consumption module; 30, Battery module; 110, Floating plate; 111, Hemispherical movable seat; 120, Connecting side strip; 141, Damping shaft; 130, Circular movable hole; 140, Photovoltaic panel; 150, Center of gravity rod; 151, Rod head; 152, Rod body; 153, Connecting screw; 154, Through groove; 155, Tube spring; 160, Center of gravity ball; 170, Movable cavity; 180, Pedal; 181, Return spring; 190, Connecting rod; 191, Transmission rack; 192, Transmission gear; 193, Return spiral spring; 200, Hemispherical connecting seat. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Example 1

[0030] This embodiment aims to address the current practice of using foam floats or inflatable cushions with existing floating photovoltaic (PV) panels. Multiple floats are connected by ropes, and each float holds a PV panel at an angle using an angled support. However, the water environment is affected by wind and underwater activities. Fluctuations in the water surface directly impact the floats, affecting the stability of the PV panel and consequently the overall solar energy storage system's battery integration module's light energy conversion efficiency. Please refer to [link to relevant documentation]. Figures 1-8 A battery integrated module for a photovoltaic energy storage system includes a photovoltaic module 10, a power consumption module 20, and a battery module 30. The power consumption module 20 is commonly referred to as the power grid. The photovoltaic module 10 is connected to the power consumption module 20, and the power consumption module 20 is connected to the battery module 30. The photovoltaic module 10 converts light energy into electrical energy to provide energy for the battery module 30.

[0031] Currently, there are two commonly used structures for applying energy storage systems to photovoltaic (PV) power generation systems. The first structure couples the battery module 30 energy storage system with the PV module 10 PV power generation system on the AC grid side of the power consumption module 20. Specifically, the battery module 30 energy storage system is connected to the AC grid of the power consumption module 20 sequentially through its own DC / AC converter and transformer. The second structure couples the battery module 30 energy storage system with the PV module 10 PV power generation system on the DC side. Specifically, the DC side of the battery module 30 energy storage system and the PV array of the PV module 10 PV power generation system are combined in the combiner box of the PV power generation system's DC / AC converter, and then connected to the AC grid of the power consumption module 20 through the PV power generation system's DC / AC converter and transformer. Both structures are mature existing technologies and are well-known to those skilled in the art.

[0032] Because large-scale installation of photovoltaic panels requires a large amount of space, they are often installed in environments with less human activity, such as rooftops or water surfaces. When installing water-based photovoltaic panels, they are generally used in conjunction with foam floating boards or inflatable cushions. Multiple floating boards 110 are connected together by ropes, and a photovoltaic panel is placed at an angle on each floating board 110 via an angle bracket. Unlike existing technologies, in this solution, the photovoltaic module 10 includes floating boards 110 and photovoltaic panels 140. The floating boards 110 are set on the water surface, and a center of gravity rod 150 is hinged to the bottom of the photovoltaic panel 140. The center of gravity rod 150 movably passes through the floating boards 110, and a center of gravity ball 160 is connected to the bottom of the center of gravity rod 150, which is located underwater.

[0033] The float 110 is made of foam board or air cushion and can float on the water surface. Connecting side strips 120 are sewn on the side of the float 110. There are several floats 110. The connecting side strips 120 are mutually restrained by ropes. The floats 110 are connected to each other. The movement of a single float 110 is restricted, which improves the stability of the overall setup.

[0034] See Figure 2 and Figure 3 The photovoltaic panel 140 is tilted during normal operation, while the center-of-gravity rod 150 is horizontally and vertically positioned at the center of gravity of the bottom of the photovoltaic panel 140. The center-of-gravity ball 160 is a stone ball or sandbag. The direct connection between the photovoltaic panel 140 and the floating plate 110 in the prior art has been eliminated. Instead, the photovoltaic panel 140 is supported by the cooperation of the center-of-gravity rod 150 and the floating plate 110. Furthermore, the center-of-gravity ball 160 is added to the bottom of the center-of-gravity rod 150, making the photovoltaic panel 140, center-of-gravity rod 150, and center-of-gravity ball 160 modularly configured.

[0035] For specific settings, see Figure 4 and Figure 5 A circular movable hole 130 is provided in the middle of the float 110. The center of gravity rod 150 passes through the circular movable hole 130. A hemispherical movable seat 111 is provided inside the circular movable hole 130. A hemispherical connecting seat 200 is installed in the middle of the center of gravity rod 150. The hemispherical connecting seat 200 and the hemispherical movable seat 111 are correspondingly and convexly fitted. The hemispherical connecting seat 200 and the hemispherical movable seat 111 are slidably connected by a groove. The opening of the circular movable hole 130 not only restricts the range of motion of the center of gravity rod 150, but also provides support when it tilts.

[0036] In this embodiment: Utilizing existing technology, the photovoltaic panel 140 in the photovoltaic energy storage system is placed on the water surface, reducing the land space occupied. Furthermore, the water surface provides less shading and facilitates full sunlight exposure for the photovoltaic panel 140. Based on existing technology, the direct connection between the photovoltaic panel 140 and the floating plate 110 is eliminated. Instead, the photovoltaic panel 140 is supported by the cooperation of the center-of-gravity rod 150 and the floating plate 110. A center-of-gravity ball 160 is added to the bottom of the center-of-gravity rod 150, making the photovoltaic panel 140, center-of-gravity rod 150, and center-of-gravity ball 160 modularly arranged. These three structures are connected by a hemispherical connecting seat 200 and a hemispherical movable seat 111. The center of gravity rod 150 is connected to the floating plate 110 in coordination with the floating plate 110, providing stable support for the center of gravity rod 150 and the photovoltaic panel 140. The center of gravity rod 150 and the photovoltaic panel 140 can rotate, making the photovoltaic panel 140 flexible in use. Since the center of gravity ball 160 controls the center of the photovoltaic panel 140, when the floating plate 110 is shaken by water surface fluctuations, the photovoltaic panel 140 is kept as stationary as possible due to the weight of the center of gravity ball 160, thereby reducing the adverse effects of water surface fluctuations on the photovoltaic panel 140, improving the stability and reliability of the photovoltaic module 10 in the battery integrated module of the photovoltaic energy storage system, reducing energy loss, and improving economic efficiency.

[0037] Example 2

[0038] This embodiment aims to address the issue that when workers need to perform maintenance or replacement of photovoltaic panels 140 on water, the work is inherently risky, and the existing photovoltaic panel 140 installation is relatively cumbersome, increasing the difficulty and safety risks. This embodiment is an improvement upon Embodiment 1. For details, please refer to... Figures 1-8 The center of gravity rod 150 includes a rod head 151, a rod body 152, and a connecting screw 153. A damping shaft 141 is installed at the bottom of the photovoltaic panel 140. The rod head 151 is connected to the damping shaft 141. The rod body 152 is inserted into the inside of the rod head 151. The connecting screw 153 is threaded through the rod head 151 and is connected to the rod body 152.

[0039] For specific settings, see Figure 8 The shaft 152 is made of stainless steel hollow tube, and the shaft head 151 is sleeved on the outside of the shaft 152. The holes on both sides of the shaft head 151 are circular threaded holes, and the shaft 152 has through grooves 154 on both sides. The through grooves 154 are vertically set, and the shaft head 151 can slide along the through grooves 154 by connecting screws 153. At the same time, an internal spring 155 is installed inside the shaft head 151. The internal spring 155 is located at the top of the shaft 152. When the center of gravity shaft 150 is shaken, the internal spring 155 is compressed, which drives the sleeve of the shaft head 151 and the shaft 152 to slide, making the structure of the center of gravity shaft 150 flexible and improving the force-bearing capacity.

[0040] In this embodiment, the detachable connection between the pole head 151 and the pole body 152 facilitates independent repair or replacement of the photovoltaic panel 140, improves the convenience of manual operation, shortens the manual operation time, and thus improves the safety of manual water operation of the photovoltaic module 10 of the battery integrated module for photovoltaic energy storage system.

[0041] Example 3

[0042] This embodiment aims to address the issue of severe dust accumulation on the surface of the photovoltaic panel 140 after long-term use, which affects sunlight illumination. Therefore, regular cleaning by personnel is necessary. Currently, before operation, workers adjust the components between the float 110 and the photovoltaic panel 140 to ensure the panel 140 is laid horizontally for easier cleaning. However, this structure and operation are cumbersome, time-consuming, and make water surface operations more unsafe. This embodiment is an improvement upon Embodiment 2. For details, please refer to [link / reference]. Figures 1-8 The float plate 110 has a movable cavity 170 inside, which is connected to the circular movable hole 130. A transmission gear 192 is rotatably installed inside the movable cavity 170. An arc-shaped rack is provided on the bottom side of the hemispherical connecting seat 200, and the transmission gear 192 meshes with the arc-shaped rack.

[0043] When the photovoltaic panel 140 is in a clean state, the photovoltaic panel 140 should be set horizontally and the center of gravity rod 150 should be set at an angle.

[0044] For specific settings, see Figure 5 and Figure 6 A pedal 180 is slidably mounted on the upper side of the float 110. A connecting rod 190 is connected to the bottom of the pedal 180. The connecting rod 190 is a T-shaped rod and is slidably disposed inside the movable cavity 170. The left end of the connecting rod 190 is slidably connected to the movable cavity 170 to limit the movement direction and angle of the connecting rod 190. A transmission rack 191 is horizontally and vertically disposed on the right end of the connecting rod 190, and the transmission rack 191 meshes with the transmission gear 192. The hemispherical connector 200 has an arc-shaped rack on its side. The transmission gear 192 meshes with the arc-shaped rack. Through the transmission cooperation between the pedal 180, the connecting rod 190, the transmission rack 191, and the transmission gear 192, when the operator steps on the pedal 180, the pedal 180 moves downward, causing the connecting rod 190 to move downward. The connecting rod 190 then causes the transmission rack 191 to move downward, resulting in meshing between the transmission rack 191 and the transmission gear 192. The transmission rack 191 then rotates the transmission gear 192, causing the hemispherical connector 200 to tilt. Ultimately, this causes the angle of the center of gravity rod 150 and the photovoltaic panel 140 to change.

[0045] A return spring 181 is installed at the bottom of the pedal 180. The return spring 181 is a compression spring, with its top end installed at the bottom of the pedal 180 and its bottom end fixedly connected to the float plate 110. A return spiral spring 193 is installed on the side of the transmission gear 192. One end of the return spiral spring 193 is connected to the central shaft of the transmission gear 192, and the other end is connected to the inner wall of the float plate 110. When the operator releases the pedal 180, the return spring 181 and the return spiral spring 193 rebound, thereby automatically resetting the pedal 180, connecting rod 190, and transmission gear 192, so that the photovoltaic panel 140 returns to its original angle.

[0046] In this embodiment: through the transmission cooperation between pedal 180, connecting rod 190, transmission rack 191, and transmission gear 192, when the worker steps on pedal 180, pedal 180 moves downward, causing connecting rod 190 to move downward. Connecting rod 190 causes transmission rack 191 to move downward, causing transmission rack 191 to mesh with transmission gear 192. Transmission rack 191 moves transmission gear 192, causing transmission gear 192 to rotate, thereby tilting hemispherical connecting seat 200, ultimately driving center of gravity rod 150 and photovoltaic panel 14. The 0-degree angle change allows the photovoltaic panel 140 to change from its original tilted setting to a horizontal setting, making it easier for staff to clean. Staff only need to step on the pedal 180 to control the angle change of the photovoltaic panel 140, reducing operation steps and improving cleaning convenience and efficiency. At the same time, through the cooperation of the return spring 181 and the return spiral spring 193, when the staff releases the pedal 180, the pedal 180, the connecting rod 190, and the transmission gear 192 will automatically reset, so that the photovoltaic panel 140 returns to its original angle.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A battery integrated module for a photovoltaic energy storage system, comprising a photovoltaic module (10), an electrical component (20), and a battery module (30), wherein the photovoltaic module (10) is connected to the electrical component (20), the electrical component (20) is connected to the battery module (30), and the photovoltaic module (10) converts light energy into electrical energy to provide energy for the battery module (30), characterized in that: The photovoltaic module (10) includes a float (110) and a photovoltaic panel (140). The float (110) is set on the water surface. A center of gravity rod (150) is hinged to the bottom of the photovoltaic panel (140). The center of gravity rod (150) is movably inserted through the float (110). A center of gravity ball (160) is connected to the bottom of the center of gravity rod (150). The center of gravity ball (160) is located underwater. The float (110) has a circular movable hole (130) in the middle, the center of gravity rod (150) passes through the circular movable hole (130), the circular movable hole (130) is provided with a hemispherical movable seat (111), the center of gravity rod (150) is installed with a hemispherical connecting seat (200), the hemispherical connecting seat (200) and the hemispherical movable seat (111) are correspondingly concave and convex and fit together, and the hemispherical connecting seat (200) and the hemispherical movable seat (111) are slidably connected by a groove.

2. The battery integration module for a photovoltaic energy storage system according to claim 1, characterized in that: The float (110) is a foam board, and a connecting side strip (120) is installed on the side of the float (110). There are several floats (110), and several connecting side strips (120) are mutually restrained by ropes. Several floats (110) are connected to each other.

3. The battery integration module for a photovoltaic energy storage system according to claim 1, characterized in that: The photovoltaic panel (140) is tilted during normal operation, the center of gravity rod (150) is horizontally and vertically arranged, the center of gravity rod (150) is located at the center of gravity at the bottom of the photovoltaic panel (140), and the center of gravity ball (160) is set as a stone ball or sandbag.

4. The battery integration module for a photovoltaic energy storage system according to claim 1, characterized in that: The center of gravity rod (150) includes a rod head (151), a rod body (152), and a connecting screw (153). A damping shaft (141) is installed at the bottom of the photovoltaic panel (140). The rod head (151) is connected to the damping shaft (141). The rod body (152) is inserted into the inside of the rod head (151). The connecting screw (153) passes through the rod head (151) and is connected to the rod body (152).

5. A battery integration module for a photovoltaic energy storage system according to claim 1, characterized in that: The float plate (110) has an open movable cavity (170) inside, which is connected to the circular movable hole (130). A transmission gear (192) is rotatably installed inside the movable cavity (170). An arc-shaped rack is provided on the bottom side of the hemispherical connecting seat (200), and the transmission gear (192) meshes with the arc-shaped rack.

6. A battery integration module for a photovoltaic energy storage system according to claim 5, characterized in that: When the photovoltaic panel (140) is in a clean state, the photovoltaic panel (140) is horizontally arranged and the center of gravity rod (150) is inclined.

7. A battery integration module for a photovoltaic energy storage system according to claim 6, characterized in that: A pedal (180) is slidably mounted on the upper side of the float (110). A connecting rod (190) is connected to the bottom of the pedal (180). The connecting rod (190) is slidably disposed inside the movable cavity (170). A transmission rack (191) is horizontally and vertically disposed at the end of the connecting rod (190). The transmission rack (191) meshes with the transmission gear (192).

8. A battery integration module for a photovoltaic energy storage system according to claim 7, characterized in that: A return spring (181) is installed at the bottom of the pedal (180). The return spring (181) is configured as a compression spring. The top end of the return spring (181) is installed at the bottom of the pedal (180), and the bottom end of the return spring (181) is fixedly connected to the float plate (110).

9. A battery integration module for a photovoltaic energy storage system according to claim 5, characterized in that: A reset spiral spring (193) is installed on the side of the transmission gear (192). One end of the reset spiral spring (193) is connected to the central shaft of the transmission gear (192), and the other end of the reset spiral spring (193) is connected to the inner wall of the float (110).

Images