Solar photovoltaic photo-thermal heat collection device

Abstract

The invention relates to the technical field of solar photovoltaic photo-thermal, in particular to a solar photovoltaic photo-thermal heat collecting device. Comprising a bottom plate, a fixing unit is installed at the upper end of the bottom plate, a plurality of evenly-distributed heat collecting units are connected to the fixing unit, the fixing unit comprises a water inlet frame which is arranged above the bottom plate and is in an inclined state, a water inlet pipe is installed on the upper rear portion of the right end of the water inlet frame, and guide rail rods are symmetrically installed at the left end of the water inlet frame. The multiple mounting frames and the multiple heat collection parts can be directly matched with the two guide rail rods in an inserted mode, the multiple mounting frames and the multiple heat collection parts can be limited only through the clamping parts, the repeated and independent mounting steps of the multiple heat collection devices are effectively reduced, and the mounting efficiency of the multiple heat collection devices is improved.

Description

Technical Field

[0001] The present invention relates to the field of solar photovoltaic and thermal technology, and in particular to a solar photovoltaic and thermal heat collecting device. Background Art

[0002] Solar photovoltaic thermal collectors are devices that combine photovoltaic power generation and thermal energy collection; they are designed to generate both electricity and heat, thereby increasing the efficiency of solar energy utilization and reducing the space required for installation.

[0003] Before use, a solar photovoltaic thermal collector device is usually installed with multiple collectors closely and neatly arranged on a support base. The photovoltaic device and the collector are then connected to external power equipment and water pipes respectively, and the collector is then used normally. However, when installing, multiple collectors are usually fixed to the support frame in sequence by multiple bolts. The installation steps are repeated, which reduces the efficiency of installing multiple collectors. In addition, when replacing an installed collector, the collector needs to be disassembled as a whole, which increases the difficulty of replacing the collector. Summary of the invention

[0004] Based on this, it is necessary to provide a solar photovoltaic thermal collector device, which aims to solve the problems caused by the existing solar photovoltaic thermal collector equipment during installation.

[0005] In order to achieve the above objectives, the present invention adopts the following technical solutions: A solar photovoltaic thermal collector device comprises: a base plate, a fixing unit is installed on the upper end of the base plate, and a plurality of evenly distributed collector units are connected to the fixing unit.

[0006] The fixing unit comprises a water inlet frame which is arranged above the base plate and is in an inclined state, a water inlet pipe is installed on the upper rear right end of the water inlet frame, a guide rail rod is symmetrically installed on the left end of the water inlet frame, a plurality of water pipes which are evenly distributed and fixedly connected to the water inlet frame are arranged between the two guide rail rods, and a clamping component is commonly connected to one end of the two guide rail rods away from the water inlet frame.

[0007] The heat collecting unit comprises a plurality of mounting frames evenly distributed and slidably connected between two guide rail rods, the mounting frame being a U-shaped structure with its opening facing obliquely upward, a heat insulation plate located below the plurality of water pipes being installed at the inner end of the middle section of the mounting frame, a heat collecting component being connected inside the mounting frame, and two clamping components being symmetrically connected to the outer end of the middle section of the mounting frame.

[0008] The clamping component includes two limit assemblies which are symmetrically distributed front and back and respectively connected to the ends of the two guide rail rods, a water outlet frame is connected between the two limit assemblies, and a pushing assembly is connected to the lower end of the water outlet frame.

[0009] The multiple installation frames are plugged into corresponding heat collecting components, and then the multiple installation frames are slidably connected to the two guide rails. The two limit assemblies are used to limit the multiple installation frames, and the pushing assembly is used to push the pressing component to make the heat collecting component close to the multiple water pipes.

[0010] Furthermore, the heat collecting component includes a heat collecting module plugged into the installation frame, and the heat collecting module is installed with placement bars at both ends close to the two guide rods, and a plug-in board is installed at the oblique lower end of the placement bar, and guide openings are opened at the opposite ends of the front and rear plug-in boards.

[0011] Furthermore, the clamping component includes a guide frame installed at the oblique lower end of the installation frame through a connecting column, a movable plate is slidably connected in the guide frame, a U-shaped frame with an opening toward the guide rod is installed at the end of the movable plate close to the guide rod, a pushing column is installed in the U-shaped frame, a circular protrusion is integrally formed at the end of the movable plate away from the U-shaped frame, a square plate is installed at the oblique upper end of the movable plate, and a reset spring is installed between the square plate and the connecting column.

[0012] Furthermore, the heat collecting unit also includes four connecting seats which are distributed in a rectangular shape and are respectively installed at two ends of the opening of the installation frame, and the upper ends of the connecting seats are rotatably connected to a locking plate.

[0013] Furthermore, the limit assembly includes a limit sleeve mounted on the end of the guide rod away from the water inlet frame, the limit sleeve is a stepped structure, the limit sleeve is fixedly connected to the end of the water outlet frame, a locking screw is rotatably connected to the vertical end wall of the limit sleeve, and the locking screw is threadedly connected to the end of the guide rod.

[0014] Furthermore, the pushing assembly includes a first rectangular plate installed on the oblique lower end of the water outlet frame, the first rectangular plate is provided with a rectangular through hole, the pushing plate is inserted into the rectangular through hole, and the front and rear ends of the pushing plate are provided with a plurality of evenly distributed and right-angled trapezoidal pushing protrusions, the inclined surface of the pushing protrusion faces the movable plate, and the right end of the pushing plate is slidably sleeved with a second rectangular plate, and the second rectangular plate is fixedly connected to the oblique lower end of the water inlet frame.

[0015] Furthermore, the pushing assembly also includes a pressing plate installed at the left end of the pushing plate, a guide plate that slides through and cooperates with the first rectangular plate is installed at the right end of the pressing plate, and a connecting screw is threadedly connected at the lower end of the pressing plate.

[0016] Furthermore, a plurality of evenly distributed and communicating sleeves are installed on the inner end surface of the right frame wall of the water outlet frame. The communicating sleeves are plugged into and matched with the corresponding ends of the water pipes. A sealing ring is laid on the inner annular surface of the communicating sleeve. A water outlet pipe is installed at the lower front side of the left end of the water outlet frame.

[0017] Furthermore, the fixing unit also includes a plurality of support plates which are respectively installed on the front and rear sides of the upper end of the base plate and are evenly distributed. The upper ends of the plurality of support plates on the front and rear sides are respectively fixedly connected to the guide rail rods on the front and rear sides. The plurality of support plates on the front and rear sides have the same structure and only have different heights.

[0018] Furthermore, a heat insulating layer is provided at one end of the water inlet frame and the water outlet frame close to the heat collecting component.

[0019] In summary, the present invention includes the following beneficial technical effects: 1. The multiple installation frames and multiple heat collecting components adopted in the present invention can be directly plugged into and matched with two guide rails, and the multiple installation frames and multiple heat collecting components can be limited only by clamping components, which effectively reduces the steps of repeated separate installation of multiple heat collecting devices and improves the installation efficiency of multiple heat collecting devices.

[0020] 2. The multiple installation frames and multiple heat collecting components used in the present invention are detachably connected, so the heat collecting components can be quickly inspected, repaired or replaced, effectively reducing the difficulty of repairing the heat collecting device.

[0021] 3. The cooperation of multiple installation frames, multiple heat collecting components and pushing components adopted in the present invention can further improve the close contact between the heat collecting components and the water pipes, thereby ensuring the heat collecting effect of the heat collecting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from a first viewing angle is shown.

[0024] Figure 2 A schematic diagram of the second viewing angle stereoscopic structure of the present invention is shown.

[0025] Figure 3 A front view of the present invention is shown.

[0026] Figure 4 A left side view of the present invention is shown.

[0027] Figure 5 Shows Figure 3 Sectional view of AA.

[0028] Figure 6 Shows Figure 4Cross-sectional view of BB.

[0029] Figure 7 Shows Figure 6 Magnified view of the middle N region.

[0030] Figure 8 A cross-sectional view of a heat collecting unit of the present invention is shown.

[0031] Fig. 9 The diagram shows the positional relationship between the heat collecting unit and part of the fixing unit of the present invention.

[0032] The above drawings include the following reference numerals: 1, bottom plate; 2, fixing unit; 21, water inlet frame; 22, guide rail rod; 23, water pipe; 24, clamping component; 241, limit assembly; 2411, limit sleeve; 2412, locking screw; 242, water outlet frame; 2421, connecting sleeve; 243, pushing assembly; 2431, first rectangular plate; 2432, second rectangular plate; 2433, rectangular through hole; 2434, pushing plate; 2435, pushing protrusion ; 2436, pressing plate; 2437, guide plate; 2438, connecting screw; 25, support plate; 3, heat collecting unit; 31, mounting frame; 32, heat insulation board; 33, heat collecting component; 331, heat collecting module; 332, placement strip; 333, plug-in board; 334, guide opening; 34, pressing component; 341, guide frame; 342, movable plate; 343, U-shaped frame; 344, pushing column; 345, reset spring; 35, connecting seat; 36, positioning plate. DETAILED DESCRIPTION

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0034] See also Figure 1-Figure 4 A solar photovoltaic thermal collector device comprises a base plate 1, a fixing unit 2 is mounted on the upper end of the base plate 1, and a plurality of evenly distributed collector units 3 are connected to the fixing unit 2.

[0035] See also Figure 1 , Figure 5 and Figure 6The fixing unit 2 includes a water inlet frame 21 which is arranged above the bottom plate 1 and is in an inclined state. A water inlet pipe is installed at the upper rear right end of the water inlet frame 21. A guide rod 22 is symmetrically installed at the left end of the water inlet frame 21. A plurality of water pipes 23 which are evenly distributed and fixedly connected to the water inlet frame 21 are arranged between the two guide rods 22.

[0036] See also Figure 1 and Figure 5 The fixing unit 2 also includes a plurality of support plates 25 respectively installed at the front and rear sides of the upper end of the base plate 1 and evenly distributed. The upper ends of the plurality of support plates 25 at the front and rear sides are respectively fixedly connected to the guide rail rods 22 at the front and rear sides. The plurality of support plates 25 at the front and rear sides have the same structure and only differ in height.

[0037] During specific work, the base plate 1 is fixed in the working position, and the base plate 1 supports the two guide rods 22 through two support plates 25 with inconsistent heights, so that the coplanar surface of the two guide rods 22 is in an inclined state, thereby facilitating the contact between the thermal collection unit 3 and the sunlight, and then connecting the water inlet pipe on the water inlet frame 21 to the existing water pump.

[0038] See also Figure 1 , Figure 2 , Figure 5 and Figure 8 The heat collecting unit 3 includes a plurality of mounting frames 31 evenly distributed and slidably connected between the two guide rails 22, the mounting frame 31 is a U-shaped structure with its opening facing obliquely upward, a heat insulation plate 32 located below the plurality of water pipes 23 is installed at the inner end of the middle section of the mounting frame 31, a heat collecting component 33 is connected inside the mounting frame 31, and the heat collecting unit 3 also includes four connecting seats 35 distributed in a rectangular shape and respectively installed at both ends of the opening of the mounting frame 31, and a positioning plate 36 is rotatably connected to the upper end of the connecting seat 35.

[0039] See also Figure 1 , Figure 5 , Figure 8 and Fig. 9 The heat collecting component 33 includes a heat collecting module 331 inserted into the installation frame 31, and the heat collecting module 331 is installed with placement strips 332 at both ends close to the two guide rods 22. A plug-in board 333 is installed at the oblique lower end of the placement strip 332, and guide openings 334 are opened at the opposite ends of the front and rear plug-in boards 333.

[0040] During specific work, the two placement bars 332 are spliced ​​with the corresponding two mounting frames 31 before use. The placement bars 332 drive the plug-in board 333 to pass through the middle section of the mounting frame 31. At the same time, the two placement bars 332 drive the heat collecting module 331 to move into the mounting frame 31 until the placement bars 332 are tightly attached to the open end of the mounting frame 31. Then, the four positioning plates 36 on the mounting frame 31 are rotated to the two ends of the two placement bars 332 to realize the function of limiting the two placement bars 332, and then realize the function of preliminarily limiting the heat collecting module 331. Repeat this step to realize the connection between multiple heat collecting components 33 and the mounting frame 31. The heat collecting module 331 mainly includes glass, covering film, solar cells and aluminum alloy heat absorbing plates. The solar cells have their own output ports connected to external wires. The heat collecting module 331 is modularly designed and is detachably connected to the mounting frame 31. The installation and disassembly are simple and convenient, thereby facilitating the maintenance and care of the heat collecting module 331.

[0041] See also Figure 1 , Figure 2 , Figure 6 and Figure 7 The two ends of the guide rails 22 away from the water inlet frame 21 are commonly connected with a clamping component 24, and the clamping component 24 includes two limiting components 241 that are symmetrically distributed front and back and respectively connected to the ends of the two guide rails 22, and the limiting component 241 includes a limiting sleeve 2411 that is sleeved on the end of the guide rail 22 away from the water inlet frame 21, and the limiting sleeve 2411 is a stepped structure, and the limiting sleeve 2411 is fixedly connected to the end of the water outlet frame 242, and a locking screw 2412 is rotatably connected to the vertical end wall of the limiting sleeve 2411, and the locking screw 2412 is threadedly connected to the end of the guide rail 22.

[0042] See also Figure 1 , Figure 2 and Figure 5 The multiple installation frames 31 are plugged into and matched with the corresponding heat collecting components 33, and then the multiple installation frames 31 are slidably connected to the two guide rods 22. The two limiting components 241 are used to limit the multiple installation frames 31, and the pushing component 243 is used to push the clamping component 34 to make the heat collecting component 33 close to the multiple water pipes 23.

[0043] During specific work, multiple installation frames 31 connected with corresponding heat collecting components 33 are slidably connected to the two guide rods 22 in sequence. When connecting, ensure that the heat collecting components 33 are facing obliquely upward. After multiple installation frames 31 are connected to the two guide rods 22, two limit sleeves 2411 are simultaneously sleeved on the ends of the two guide rods 22, and then the locking screw 2412 is rotated. The locking screw 2412 is threadedly connected to the guide rod 22 and drives the limit sleeve 2411 to move. The limit sleeve 2411 pushes the multiple installation frames 31 to make the multiple installation frames 31 fit toward the water inlet frame 21, avoiding gaps between the multiple installation frames 31, and there is no need to limit each installation frame 31 with a large number of bolts, which effectively reduces the difficulty of installing multiple installation frames 31, reduces the installation steps, and improves the installation efficiency.

[0044] See also Figure 1 and Figure 7 A water outlet frame 242 is connected between the two limit components 241. A plurality of evenly distributed connecting sleeves 2421 that are connected thereto are installed on the inner end surface of the right frame wall of the water outlet frame 242. The connecting sleeves 2421 are plugged into and matched with the corresponding ends of the water pipes 23. A sealing ring is laid on the inner annular surface of the connecting sleeve 2421. A water outlet pipe is installed on the lower front side of the left end of the water outlet frame 242.

[0045] See also Figure 1 and Figure 7 The water inlet frame 21 and the water outlet frame 242 are both provided with a heat insulation layer at one end close to the heat collecting component 33 .

[0046] During specific operation, the two limit sleeves 2411 are sleeved on the guide rod 22 and drive the water outlet frame 242 to move in the direction of the multiple water pipes 23. The multiple connecting sleeves 2421 on the water outlet frame 242 correspond to the multiple water pipes 23 one by one and are plugged into each other. The sealing ring in the connecting sleeve 2421 improves the sealing performance of the connection between the connecting sleeve 2421 and the end of the water pipe 23. After the limit sleeve 2411 limits the multiple installation frames 31, the existing drain pipe is connected to the water outlet pipe on the water outlet frame 242. At this time, the multiple water pipes 23 are located between the insulation board 32 and the heat collection module 331. The insulation layer on the water inlet frame 21 and the water outlet frame 242 and the multiple insulation boards 32 and the multiple heat collection modules 331 form an insulation space, which reduces the influence of the external temperature on the heat collection of the water pipe 23.

[0047] See also Figure 2 , Figure 5 , Figure 8 and Fig. 9Two clamping parts 34 are symmetrically connected to the outer end of the middle section of the mounting frame 31, and the clamping part 34 includes a guide frame 341 installed at the oblique lower end of the mounting frame 31 through a connecting column, and a movable plate 342 is slidably connected in the guide frame 341, and a U-shaped frame 343 with an opening toward the guide rail rod 22 is installed at the end of the movable plate 342 close to the guide rail rod 22, and a pushing column 344 is installed in the U-shaped frame 343. A circular protrusion is integrally formed at the end of the movable plate 342 away from the U-shaped frame 343, and a square plate is installed at the oblique upper end of the movable plate 342, and a return spring 345 is installed between the square plate and the connecting column.

[0048] See also Figure 1 , Figure 5 , Figure 7 and Fig. 9 The lower end of the water outlet frame 242 is connected to a pushing component 243, and the pushing component 243 includes a first rectangular plate 2431 installed at the oblique lower end of the water outlet frame 242, and a rectangular through hole 2433 is opened on the first rectangular plate 2431, and a pushing plate 2434 is inserted into the rectangular through hole 2433. A plurality of evenly distributed and right-angled trapezoidal pushing protrusions 2435 are installed at both the front and rear ends of the pushing plate 2434, and the inclined surface of the pushing protrusion 2435 faces the movable plate 342. The right end of the pushing plate 2434 is slidably sleeved with a second rectangular plate 2432, and the second rectangular plate 2432 is fixedly connected to the oblique lower end of the water inlet frame 21.

[0049] See also Figure 1 and Figure 7 The pushing assembly 243 also includes a pressing plate 2436 installed at the left end of the pushing plate 2434, and a guide plate 2437 that slides through and cooperates with the first rectangular plate 2431 is installed at the right end of the pressing plate 2436, and a connecting screw 2438 is threadedly connected at the lower end of the pressing plate 2436.

[0050] During specific operation, the pushing plate 2434 is initially in a separated state from the first rectangular plate 2431 and the second rectangular plate 2432. After the plurality of mounting frames 31 are limited, the water outlet frame 242 limits the first rectangular plate 2431, and then the pushing plate 2434 is inserted into the rectangular through hole 2433 and moved toward the second rectangular plate 2432 by pushing the pressing plate 2436. The guide plate 2437 guides the movement of the pushing plate 2434. In the process of plugging and matching the pushing plate 2434 with the second rectangular plate 2432, the pushing plate 2434 drives the plurality of pushing protrusions 2435 on both sides to push the circular protrusions on the movable plate 342 on both sides, and the movable plate 342 is driven by the U-shaped frame 343. The pushing column 344 moves toward the guide opening 334 on the plug-in plate 333 and pushes the oblique lower side wall of the guide opening 334. The plug-in plates 333 on both sides are stressed and pull the heat collecting module 331 downward through the two placement strips 332 to ensure that the heat collecting module 331 is close to the water pipe 23, thereby ensuring the heat collecting effect of the water pipe 23. At the same time, the moving plate 342 squeezes the return spring 345 through the square plate. When the pushing plate 2434 is plugged into the second rectangular plate 2432, the connecting screw 2438 is rotated, and the connecting screw 2438 is threadedly connected to the first rectangular plate 2431, and then the pushing plate 2434 is limited by the pressing plate 2436, and then the solar photovoltaic thermal collector is used normally.

[0051] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A solar photovoltaic thermal collector, characterized in that: It comprises a base plate (1), a fixing unit (2) is installed on the upper end of the base plate (1), and a plurality of evenly distributed heat collecting units (3) are connected to the fixing unit (2); The fixing unit (2) comprises a water inlet frame (21) arranged above the bottom plate (1) and in an inclined state, a water inlet pipe being installed at the upper rear right end of the water inlet frame (21), a guide rail (22) being symmetrically installed at the left end of the water inlet frame (21), a plurality of water pipes (23) evenly distributed and fixedly connected to the water inlet frame (21) being arranged between two of the guide rails (22), and a clamping component (24) being commonly connected at one end of the two guide rails (22) away from the water inlet frame (21); The heat collecting unit (3) comprises a plurality of evenly distributed installation frames (31) slidably connected between two guide rails (22); the installation frames (31) are in a U-shaped structure with an opening facing obliquely upward; a heat insulation board (32) located below the plurality of water pipes (23) is installed at the inner end of the middle section of the installation frame (31); a heat collecting component (33) is connected inside the installation frame (31); and two pressing components (34) are symmetrically connected to the outer end of the middle section of the installation frame (31); The clamping component (24) comprises two limit assemblies (241) which are symmetrically distributed front and back and respectively connected to the ends of the two guide rail rods (22); a water outlet frame (242) is connected between the two limit assemblies (241); and a pushing assembly (243) is connected to the lower end of the water outlet frame (242); The plurality of installation frames (31) are plugged into and matched with corresponding heat collecting components (33), and the plurality of installation frames (31) are then slidably connected to two guide rails (22). The two limiting components (241) are used to limit the plurality of installation frames (31), and the pushing component (243) is used to push the pressing component (34) so ​​that the heat collecting component (33) is closely attached to the plurality of water pipes (23).

2. A solar photovoltaic thermal collector according to claim 1, characterized in that: The heat collecting component (33) comprises a heat collecting module (331) plugged into the installation frame (31), and the heat collecting module (331) is provided with placement bars (332) at both ends close to the two guide rails (22), and a plug-in board (333) is installed at the oblique lower end of the placement bar (332), and the opposite ends of the front and rear plug-in boards (333) are provided with guide openings (334).

3. A solar photovoltaic thermal collector according to claim 1, characterized in that: The pressing component (34) comprises a guide frame (341) mounted at the oblique lower end of the mounting frame (31) via a connecting column, a movable plate (342) being slidably connected in the guide frame (341), a U-shaped frame (343) with an opening facing the guide rail (22) being mounted at one end of the movable plate (342) close to the guide rail rod (22), a pushing column (344) being mounted in the U-shaped frame (343), a circular protrusion being integrally formed at one end of the movable plate (342) away from the U-shaped frame (343), a square plate being mounted at the oblique upper end of the movable plate (342), and a return spring (345) being mounted between the square plate and the connecting column.

4. A solar photovoltaic thermal collector according to claim 1, characterized in that: The heat collection unit (3) further comprises four connection seats (35) distributed in a rectangular shape and respectively mounted at both ends of an opening of the installation frame (31); the upper ends of the connection seats (35) are rotatably connected to a locking plate (36).

5. A solar photovoltaic thermal collector according to claim 1, characterized in that: The limiting assembly (241) comprises a limiting sleeve (2411) sleeved on the end of the guide rail rod (22) away from the water inlet frame (21); the limiting sleeve (2411) is fixedly connected to the end of the water outlet frame (242); a locking screw (2412) is rotatably connected to the vertical end wall of the limiting sleeve (2411); and the locking screw (2412) is threadedly connected to the end of the guide rail rod (22).

6. A solar photovoltaic thermal collector according to claim 1, characterized in that: The pushing assembly (243) comprises a first rectangular plate (2431) mounted on the oblique lower end of the water outlet frame (242); a rectangular through hole (2433) is provided on the first rectangular plate (2431); a pushing plate (2434) is inserted into the rectangular through hole (2433); a plurality of evenly distributed pushing protrusions (2435) in the shape of right-angle trapezoids are mounted on both the front and rear ends of the pushing plate (2434); the inclined surfaces of the pushing protrusions (2435) face the movable plate (342); a second rectangular plate (2432) is slidably sleeved on the right end of the pushing plate (2434); and the second rectangular plate (2432) is fixedly connected to the oblique lower end of the water inlet frame (21).

7. A solar photovoltaic thermal collector according to claim 6, characterized in that: The pushing assembly (243) also includes a pressing plate (2436) installed at the left end of the pushing plate (2434), and a guide plate (2437) that slides through and cooperates with the first rectangular plate (2431) is installed at the right end of the pressing plate (2436), and a connecting screw (2438) is threadedly connected at the lower end of the pressing plate (2436).

8. A solar photovoltaic thermal collector according to claim 1, characterized in that: The inner end surface of the right frame wall of the water outlet frame (242) is provided with a plurality of evenly distributed and interpenetrating communication sleeves (2421), the communication sleeves (2421) are plug-fitted with the corresponding ends of the water pipes (23), the inner annular surface of the communication sleeves (2421) is provided with a sealing ring, and the water outlet pipe is provided at the lower front side of the left end of the water outlet frame (242).

9. A solar photovoltaic thermal collector according to claim 1, characterized in that: The fixing unit (2) further comprises a plurality of support plates (25) respectively mounted on the front and rear sides of the upper end of the base plate (1) and evenly distributed, the upper ends of the plurality of support plates (25) on the front and rear sides being respectively fixedly connected to the guide rails (22) on the front and rear sides, and the plurality of support plates (25) on the front and rear sides having the same structure and only different heights.

10. A solar photovoltaic thermal collector according to claim 1, characterized in that: The water inlet frame (21) and the water outlet frame (242) are both provided with a heat insulation layer at one end close to the heat collecting component (33).

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