Solar energy storage device

Abstract

The invention relates to the technical field of solar energy storage, in particular to a solar energy storage device which comprises a solar water heater body, the solar water heater body comprises a support, a water storage tank and a heat collecting pipe communicated with the water storage tank are arranged on the support, and the solar energy storage device further comprises a hollow rotating shaft rotationally arranged on the water storage tank. According to the device, the driving assembly drives the stirring blades to rotate so as to realize mixing of water in the water storage tank, and in the rotating process of the stirring blades, the angle switching assembly drives the stirring blades to perform angle deflection switching, so that the upper-layer water in the water storage tank flows from left to right and the lower-layer water flows from right to left, and then circulating convection is formed; the design can effectively avoid the layering phenomenon of upper and lower cold and hot water in the water storage tank, ensure that the water temperatures at the left and right ends of the water storage tank tend to be consistent, remarkably improve the balance of the water temperatures in the water storage tank, and further reduce the possibility of scale condensation in the rotating process of the stirring blades.

Description

Technical Field

[0001] The present invention relates to the technical field of solar energy energy storage, and specifically to a solar energy energy storage device. Background Art

[0002] As a device for efficiently utilizing solar energy, the core function of a solar energy energy storage device is to achieve the collection, conversion, and storage of solar energy, and release energy when needed. In the civilian field, a solar water heater is a highly representative solar energy energy storage device. Among them, a vacuum tube solar water heater mainly consists of three parts: a heat collecting tube, a water storage tank, and a bracket. The heat collecting tube is usually located below the water storage tank; In terms of physical properties, liquid water follows the law that the higher the temperature (above room temperature), the smaller the density in a certain temperature range. Based on this property, when the cold water in the heat collecting tube is heated, its density decreases and it will float to the water storage tank, while the relatively colder cold water in the water storage tank will sink to the heat collecting tube, thus forming a convection cycle of cold and hot water. However, this convection cycle also brings a significant problem - the stratification of cold and hot water in the water storage tank. The stratification of cold and hot water in the water storage tank will cause a series of adverse consequences. In terms of hot water supply, it will lead to unstable hot water supply, specifically manifested as the outlet water temperature being alternately cold and hot. At the level of system efficiency, stratification will increase the temperature difference of the water, increase the heat loss of the upper hot water; at the same time, it will also affect the efficiency of the collector, resulting in abnormal water temperature at the outlet of the collector, thereby reducing the operating efficiency of the entire solar water heating system. For this reason, we propose a solar energy energy storage device. Summary of the Invention

[0003] To solve the above technical problems, an embodiment of the present application provides a solar energy energy storage device, including a solar water heater main body. The solar water heater main body includes a bracket, a water storage tank is arranged on the bracket, and a heat collecting tube communicated with the water storage tank. It also includes a hollow rotating shaft rotatably arranged on the water storage tank, and the hollow rotating shaft penetrates through the water storage tank. A plurality of stirring blades are evenly arranged at equal intervals on the hollow rotating shaft. A driving component connected to the hollow rotating shaft is arranged on the water storage tank, which is used to drive the plurality of stirring blades to rotate and mix the water body in the water storage tank. An angle switching component connected to the plurality of stirring blades is arranged on the hollow rotating shaft, which is used to drive the stirring blades to deflect and switch angles when the hollow rotating shaft rotates, so that the upper and lower layer water bodies in the water storage tank can flow, and the flow directions are opposite and form a cycle.

[0004] In some embodiments, the angle switching component includes a plurality of shaft ones rotatably connected to the hollow rotating shaft. Both ends of the shaft one are fixed to the stirring blades. A rectangular sliding sleeve is fixedly connected inside the hollow rotating shaft. A push plate sliding through a plurality of rectangular sliding sleeves is arranged inside the hollow rotating shaft. A linkage member is arranged between the push plate and the plurality of shaft ones, which is used to drive the plurality of shaft ones to rotate when moving the push plate; And a driving member connected to the push plate is provided on the water storage tank, which is used to drive the push plate to move when the stirring blades switch levels so as to drive the stirring blades to deflect.

[0005] In some embodiments, the driving assembly includes an external gear ring fixedly connected to one end of the hollow rotating shaft, a driving motor is fixedly connected to the water storage tank, and a gear disk meshing with the external gear ring is fixedly connected to the output shaft of the driving motor. Starting the driving motor drives the hollow rotating shaft to rotate.

[0006] In some embodiments, the linkage member includes a circular ring fixedly connected to the first shaft, a deflection plate is fixedly connected to the circular ring, a chute is formed on the push plate, and a second shaft whose one end slides through the chute is fixedly connected to the deflection plate. Moving the push plate drives the first shaft to rotate.

[0007] In some embodiments, the driving member includes an L-shaped plate fixedly connected to one end of the push plate, a third shaft is rotatably connected to one end of the L-shaped plate, a hollow column is fixedly connected to the water storage tank, a guide groove member is formed on the hollow column, and one end of the third shaft is located in the guide groove member, which is used to drive the third shaft to slide along the guide groove member when the hollow rotating shaft rotates so as to drive the push plate to move.

[0008] In some embodiments, the guide groove member includes an arc-shaped guide groove one formed on the hollow column, one end of the third shaft is located in the arc-shaped guide groove one and is slidably connected to its inner wall, an arc-shaped guide groove two is formed on the hollow column, and two threaded guide grooves are formed on the hollow column. The two threaded guide grooves correspondingly connect the two ends of the arc-shaped guide groove one and the arc-shaped guide groove two.

[0009] In some embodiments, a sliding rod is fixedly connected to one end of the push plate, a circular plate is fixedly connected to the sliding rod, springs sleeved on the sliding rod are fixedly connected to both ends of the circular plate, and two limiting plates are fixedly connected to the inner wall of the hollow rotating shaft. The sliding rod slides through the limiting plates, and one ends of the two springs are correspondingly in contact with and abutted against the two limiting plates, which is used to compress the spring on one side of the circular plate when moving the push plate to drive the stirring blades to deflect and tilt, so as to provide a self-restoring elastic force for it; And two right trapezoidal notches are formed on the hollow column, and the two right trapezoidal notches are correspondingly communicated with the arc-shaped guide groove one and the arc-shaped guide groove two, which is used to drive the third shaft to move into the right trapezoidal notch by the spring reset when the stirring blades rotate to the heat collection pipe orifice, so as to drive the stirring blades to deflect and reset.

[0010] In some embodiments, a photosensitive resistance sensor electrically connected to the driving motor controller is installed on the water storage tank.

[0011] In some embodiments, two temperature sensors electrically connected to the driving motor controller are installed in the water storage tank.

[0012] In some embodiments, a rotating ring is fixedly connected to one end of the push plate, an electric push rod is fixedly connected to the water storage tank, a connecting plate is fixedly connected to the extending end of the electric push rod, and a shaft four whose one end is rotatably connected to the rotating ring is fixedly connected to the connecting plate. Starting the electric push rod drives the push plate to move.

[0013] The present invention has at least the following beneficial effects: This device drives the stirring blades to rotate with the help of the driving component to realize the mixing of the water body in the water storage tank. During the rotation of the stirring blades, the angle switching component is used to drive the stirring blades to deflect and switch angles, so that the upper layer of the water body in the water storage tank flows from left to right, and the lower layer of the water body flows from right to left, thereby forming a circulating convection. This design can effectively avoid the phenomenon of stratification of cold and hot water in the upper and lower parts of the water storage tank, and at the same time ensure that the water temperatures at the left and right ends of the water storage tank tend to be consistent, significantly improving the uniformity of the water temperature in the water storage tank. In addition, the rotation process of the stirring blades can also reduce the possibility of scale condensation.

[0014] When the stirring blades rotate to the position where the heat collecting pipe is located, this device will actively control the stirring blades to deflect back to the correct position. In this way, it is possible to avoid directly stirring the water body at the heat collecting pipe, reducing the interference with the heat convection process between the water body in the heat collecting pipe and the water body in the water storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention; Figure 2 for the present invention Figure 1 is a schematic diagram of the sectional structure; Figure 3 for the present invention Figure 2 is a schematic diagram of the structure of Area A in the present invention; Figure 4 for the present invention Figure 2 is a schematic diagram of the sectional structure; Figure 5 for the present invention Figure 4 is a schematic diagram of the structure of Area B in the present invention; Figure 6 for the present invention Figure 4 is a schematic diagram of the sectional structure; Figure 7 for the present invention Figure 6 is a schematic diagram of the structure of Area C in the present invention; Figure 8 for the present invention Figure 6 is a schematic diagram of the exploded structure; Figure 9 is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 10 for the present invention Figure 9 is a schematic diagram of the structure of Area D in the present invention.

[0016] In the figure: 1 - main body of solar water heater; 11 - support; 12 - water storage tank; 13 - heat collecting tube; 2 - hollow rotating shaft; 3 - stirring blades; 4 - driving assembly; 5 - angle switching assembly; 51 - shaft one; 52 - rectangular sliding sleeve; 53 - push plate; 54 - linkage; 55 - driving member; 56 - external gear ring; 57 - driving motor; 58 - gear disk; 59 - ring; 61 - deflection plate; 62 - chute; 63 - shaft two; 64 - L-shaped plate; 65 - shaft three; 66 - hollow column; 67 - guide groove member; 68 - first arc-shaped guide groove; 69 - second arc-shaped guide groove; 71 - threaded guide groove; 72 - sliding rod; 73 - round plate; 74 - spring; 75 - limiting plate; 76 - right trapezoidal notch; 77 - photoresistive sensor; 78 - temperature sensor; 79 - rotating ring; 81 - electric push rod; 82 - connecting plate; 83 - shaft four. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0018] Embodiment 1: Please refer to Figures 1-8 , the present invention provides a technical solution: a solar energy storage device, including a main body 1 of a solar water heater. The main body 1 of the solar water heater includes a support 11, a water storage tank 12 is arranged on the support 11, and a heat collecting tube 13 communicated with the water storage tank 12. It further includes: A hollow rotating shaft 2, rotatably arranged on the water storage tank 12 and penetrating through the water storage tank 12; Multiple stirring blades 3 are evenly arranged on the hollow rotating shaft 2 at equal intervals. A driving assembly 4 connected to the hollow rotating shaft 2 is arranged on the water storage tank 12. The driving assembly 4 includes an external gear ring 56 fixedly connected to one end of the hollow rotating shaft 2. A driving motor 57 is fixedly connected to the water storage tank 12. A gear disk 58 meshing with the external gear ring 56 is fixedly connected to the output shaft of the driving motor 57. Starting the driving motor 57 drives the gear disk 58 to rotate, thereby driving the external gear ring 56 and the hollow rotating shaft 2 to rotate, for driving the multiple stirring blades 3 to rotate and mix the water body in the water storage tank 12; An angle switching assembly 5, arranged on the hollow rotating shaft 2 and connected to the multiple stirring blades 3, for driving the stirring blades 3 to perform angle deflection switching when the hollow rotating shaft 2 rotates, so that the upper and lower layers of water in the water storage tank 12 can flow, and the flow directions are opposite and form a cycle; Specifically, this device drives the stirring blade 3 to rotate by means of the driving component 4 to achieve the mixing of the water body in the water storage tank 12. During the rotation of the stirring blade 3, the angle switching component 5 is used to drive the stirring blade 3 to perform angle deflection switching, prompting the upper-layer water body in the water storage tank 12 to flow from left to right and the lower-layer water body to flow from right to left, thereby forming a circulating convection. This design can effectively avoid the phenomenon of upper and lower cold and hot water stratification in the water storage tank 12, and at the same time ensure that the water temperatures at both ends of the water storage tank 12 tend to be consistent, significantly improving the uniformity of the water temperature in the water storage tank 12. In addition, the rotation process of the stirring blade 3 can also reduce the possibility of scale condensation; At the same time, when the stirring blade 3 rotates to the position where the heat collecting pipe 13 is located, the device will actively control the stirring blade 3 to deflect back to the original position. In this way, it is possible to avoid directly agitating the water body at the heat collecting pipe 13 and reduce the interference with the heat convection process between the water body in the heat collecting pipe 13 and the water body in the water storage tank 12.

[0019] The angle switching component 5 includes a plurality of shaft ones 51 rotatably connected to the hollow rotating shaft 2. Both ends of the shaft one 51 are fixedly connected to the stirring blade 3. A rectangular sliding sleeve 52 is fixedly connected inside the hollow rotating shaft 2. A push plate 53 is arranged inside the hollow rotating shaft 2 and sequentially slides through a plurality of rectangular sliding sleeves 52. A linkage member 54 is arranged between the push plate 53 and the plurality of shaft ones 51. The linkage member 54 includes a ring 59 fixedly connected to the shaft one 51. A deflection plate 61 is fixedly connected to the ring 59. A chute 62 is formed on the push plate 53. A shaft two 63 with one end sliding through the chute 62 is fixedly connected to the deflection plate 61. Specifically, by moving the push plate 53, the shaft two 63 is pushed by the chute 62, thereby driving the deflection plate 61 and the ring 59 to deflect, and then driving the shaft one 51 to rotate, so as to drive the stirring blade 3 to switch angles; And a driving member 55 connected to the push plate 53 is arranged on the water storage tank 12, which is used to drive the push plate 53 to move to drive the stirring blade 3 to deflect and switch when the stirring blade 3 switches levels.

[0020] A protective shell is fixedly connected to one end of the water storage tank 12. The driving motor 57, the external gear ring 56, and the gear disk 58 are all located inside the protective shell.

[0021] The driving member 55 includes an L-shaped plate 64 fixedly connected to one end of the push plate 53. One end of the L-shaped plate 64 is rotatably connected to a shaft three 65. A hollow column 66 is fixedly connected to the water storage tank 12. A guide groove member 67 is formed on the inner wall of the hollow column 66. One end of the shaft three 65 is located inside the guide groove member 67 and is used to drive the shaft three 65 to slide along the guide groove member 67 when the hollow rotating shaft 2 rotates, so as to drive the push plate 53 to move.

[0022] The guide groove member 67 includes an arc-shaped guide groove 68 formed on the hollow column 66. One end of the third shaft 65 is located inside the arc-shaped guide groove 68 and is slidably connected to its inner wall. An arc-shaped guide groove 69 is formed on the hollow column 66. The arc-shaped guide groove 68 and the arc-shaped guide groove 69 are located at different positions on the axis of the hollow column 66. Two threaded guide grooves 71 are formed on the hollow column 66. The two threaded guide grooves 71 correspondingly connect the two ends of the arc-shaped guide groove 68 and the arc-shaped guide groove 69 and make the arc-shaped guide groove 69 communicate with the arc-shaped guide groove 68. Specifically, when the driving motor 57 drives the hollow rotating shaft 2 to rotate, it will drive the third shaft 65 located on the push plate 53 to rotate around the hollow rotating shaft 2 as the axis. During this process, the third shaft 65 will sequentially slide along the arc-shaped guide groove 68, the threaded guide groove 71, the arc-shaped guide groove 69, and the other threaded guide groove 71 to form a cyclic rotation. Whenever the third shaft 65 passes through the spiral guide groove, it will drive the push plate 53 to generate a displacement, thereby driving the stirring blade 3 to deflect and switch. When the stirring blade 3 is in the upper layer, its deflection state can push the water body to flow from left to right; when the stirring blade 3 is in the lower layer, its deflection state can push the water body to flow from right to left.

[0023] One end of the push plate 53 is fixedly connected with a sliding rod 72. A circular plate 73 is fixedly connected to the sliding rod 72. Springs 74 sleeved on the sliding rod 72 are fixedly connected to both ends of the circular plate 73. Two limiting plates 75 are fixedly connected to the inner wall of the hollow rotating shaft 2. The sliding rod 72 slidably passes through the limiting plates 75. One ends of the two springs 74 correspondingly contact and abut against the two limiting plates 75, so as to compress the spring 74 on one side of the circular plate 73 when moving the push plate 53 to drive the stirring blade 3 to deflect and tilt, so as to provide a self-restoring elastic force for it. Two right trapezoidal notches 76 are formed on the hollow column 66. The two right trapezoidal notches 76 correspondingly communicate with the arc-shaped guide groove 68 and the arc-shaped guide groove 69, and are used to drive the push plate 53 to move by the reset of the spring 74 when the stirring blade 3 rotates to the port of the heat collecting tube 13. At the same time, the third shaft 65 also moves into the right trapezoidal notch 76 to drive the stirring blade 3 to deflect and reset, that is, the stirring blade 3 will deflect back to the normal position. In this way, the water body at the heat collecting tube 13 can be directly stirred, and the interference with the heat convection process between the water body in the heat collecting tube 13 and the water body in the water storage tank 12 can be reduced. Subsequently, when the stirring blade 3 rotates past the heat collecting tube 13, the third shaft 65 also returns to the arc-shaped guide groove 68 or the arc-shaped guide groove 69 along the inclined piece of the right trapezoidal notch 76, and at the same time, the stirring blade 3 also deflects and tilts again. It should be particularly noted that the stirring blade 3 deflecting back to the normal position means that the stirring blade 3 is perpendicular to the axis of the hollow rotating shaft 2. When the stirring blade 3 is in this state, rotating the hollow rotating shaft 2 to drive the stirring blade 3 to rotate, at this time, the stirring blade 3 hardly pushes the water body to move along the axis direction of the hollow rotating shaft 2.

[0024] A photoresistor sensor 77 electrically connected to the controller of the drive motor 57 is installed on the water storage tank 12. The photoresistor sensor 77 can be used to monitor the intensity of sunlight in real time. Specifically, when the sunlight intensity is high, the heat absorbed by the solar water heater collector tube 13 increases, and the temperature rises rapidly. At this time, the water temperature difference at different positions in the water storage tank 12 increases, and the possibility of stratification also increases. In this case, the drive motor 57 can be controlled to start and rotate intermittently through a preset program, driving the stirring blade 3 to stir the water body in the water storage tank 12 to promote water body mixing and reduce the stratification phenomenon.

[0025] Two temperature sensors 78 electrically connected to the controller of the drive motor 57 are installed in the water storage tank 12. These two temperature sensors 78 are used to detect the temperatures of the upper and lower layers of the water body in the water storage tank 12 in real time. When there is an obvious temperature difference between the two, the drive motor 57 can be controlled to start and rotate intermittently through a preset program, driving the stirring blade 3 to stir the water body in the water storage tank 12 to promote water body mixing and reduce the stratification phenomenon.

[0026] Embodiment 2: Please refer to Figures 9-10 , the present invention provides a technical solution: Embodiment 2 is another specific implementation manner of the driving member 55 in Embodiment 1: One end of the push plate 53 is fixedly connected with a rotating ring 79. An electric push rod 81 is fixedly connected to the water storage tank 12. The extending end of the electric push rod 81 is fixedly connected with a connecting plate 82. A shaft four 83 fixedly connected to the connecting plate 82 and rotatably connected to the rotating ring 79 at one end. Starting the electric push rod 81 drives the connecting plate 82 to move, thereby driving the shaft four 83 and the rotating ring 79 to move, so as to drive the push plate 53 to move.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A solar energy storage device, comprising a solar water heater main body (1), wherein the solar water heater main body (1) includes a bracket (11), a water storage tank (12) is arranged on the bracket (11), and a heat collecting tube (13) communicated with the water storage tank (12), and is characterized in that: It further includes: A hollow rotating shaft (2), rotatably arranged on the water storage tank (12) and penetrating through the water storage tank (12); Multiple stirring blades (3), equidistantly and uniformly arranged on the hollow rotating shaft (2). A driving assembly (4) connected to the hollow rotating shaft (2) is arranged on the water storage tank (12) for driving the multiple stirring blades (3) to rotate and mix the water body in the water storage tank (12); An angle switching assembly (5), arranged on the hollow rotating shaft (2) and connected to the multiple stirring blades (3), for driving the stirring blades (3) to deflect and switch angles when the hollow rotating shaft (2) rotates, so that the upper and lower layer water bodies in the water storage tank (12) can flow, and the flow directions are opposite and form a cycle.

2. The solar energy storage device according to claim 1, wherein: The angle switching assembly (5) includes multiple first shafts (51) rotatably connected to the hollow rotating shaft (2). Both ends of the first shaft (51) are fixed to the stirring blade (3). A rectangular sliding sleeve (52) is fixedly connected inside the hollow rotating shaft (2). A push plate (53) sliding through multiple rectangular sliding sleeves (52) is arranged inside the hollow rotating shaft (2). A linkage member (54) is arranged between the push plate (53) and the multiple first shafts (51) for driving the multiple first shafts (51) to rotate when moving the push plate (53); And a driving member (55) connected to the push plate (53) is arranged on the water storage tank (12) for driving the push plate (53) to move to drive the stirring blade (3) to deflect when the stirring blade (3) switches levels.

3. The solar energy storage device according to claim 1, characterized in that: The driving assembly (4) includes an external tooth ring (56) fixedly connected to one end of the hollow rotating shaft (2). A driving motor (57) is fixedly connected to the water storage tank (12). A tooth disc (58) meshing with the external tooth ring (56) is fixedly connected to the output shaft of the driving motor (57). Starting the driving motor (57) drives the hollow rotating shaft (2) to rotate.

4. The solar energy storage device according to claim 2, wherein: The linkage member (54) includes a ring (59) fixedly connected to the first shaft (51). A deflection plate (61) is fixedly connected to the ring (59). A chute (62) is formed on the push plate (53). A second shaft (63) with one end sliding through the chute (62) is fixedly connected to the deflection plate (61). Moving the push plate (53) drives the first shaft (51) to rotate.

5. The solar energy storage device according to claim 4, characterized in that: The driving member (55) includes an L-shaped plate (64) fixedly connected to one end of the push plate (53). One end of the L-shaped plate (64) is rotatably connected to a third shaft (65). A hollow column (66) is fixedly connected to the water storage tank (12). A guide groove member (67) is formed on the hollow column (66). One end of the third shaft (65) is located inside the guide groove member (67) for driving the third shaft (65) to slide along the guide groove member (67) when the hollow rotating shaft (2) rotates, so as to drive the push plate (53) to move.

6. The solar energy storage device according to claim 5, characterized in that: The guide groove member (67) includes an arc-shaped guide groove one (68) formed on the hollow column (66). One end of the shaft three (65) is located in the arc-shaped guide groove one (68) and is slidably connected to its inner wall. An arc-shaped guide groove two (69) is formed on the hollow column (66), and two threaded guide grooves (71) are formed on the hollow column (66). The two threaded guide grooves (71) correspondingly connect the two ends of the arc-shaped guide groove one (68) and the arc-shaped guide groove two (69).

7. The solar energy storage device according to claim 6, wherein: One end of the push plate (53) is fixedly connected with a slide bar (72). A circular plate (73) is fixedly connected to the slide bar (72). Springs (74) sleeved on the slide bar (72) are fixedly connected to both ends of the circular plate (73). Two limiting plates (75) are fixedly connected to the inner wall of the hollow rotating shaft (2). The slide bar (72) slidably passes through the limiting plates (75). One ends of the two springs (74) are correspondingly in contact with and abutted against the two limiting plates (75), so as to compress the spring (74) on one side of the circular plate (73) when the push plate (53) is moved to drive the stirring blade (3) to deflect and tilt, and provide a self-restoring elastic force for it; Two right trapezoidal notches (76) are formed on the hollow column (66). The two right trapezoidal notches (76) are correspondingly communicated with the arc-shaped guide groove one (68) and the arc-shaped guide groove two (69), so as to drive the shaft three (65) to move into the right trapezoidal notch (76) by the reset of the spring (74) when the stirring blade (3) rotates to the port of the heat collecting tube (13), so as to drive the stirring blade (3) to deflect and reset.

8. The solar energy storage device according to claim 7, wherein: A photosensitive resistance sensor (77) electrically connected to the controller of the driving motor (57) is installed on the water storage tank (12).

9. The solar energy storage device according to claim 7, wherein: Two temperature sensors (78) electrically connected to the controller of the driving motor (57) are installed in the water storage tank (12).

10. The solar energy storage device according to claim 4, wherein: One end of the push plate (53) is fixedly connected with a rotating ring (79). An electric push rod (81) is fixedly connected to the water storage tank (12). A connecting plate (82) is fixedly connected to the extending end of the electric push rod (81). A shaft four (83) with one end rotatably connected to the rotating ring (79) is fixedly connected to the connecting plate (82). Starting the electric push rod (81) drives the push plate (53) to move.

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