Connecting structure of outer wall panel and photovoltaic-thermal panel for ultra-low energy consumption building

Abstract

The utility model relates to the technical field of fabricated building, disclose a kind of connecting structure for the outer wall board and photovoltaic photo-thermal plate of super low energy consumption building.The connecting structure of the utility model, comprising: internal connecting piece, external connecting piece and safety pin, internal connecting piece includes bottom plate and the protruding piece being set on bottom plate, protruding piece is equipped with external thread, external connecting piece includes end plate and the sleeve being set on end plate, sleeve is equipped with the internal thread of adaptation with external thread, protruding piece and sleeve are all equipped with through hole, bottom plate is set in outer wall board, end plate is set in photovoltaic photo-thermal plate.The connecting structure of the utility model, when photovoltaic photo-thermal plate is connected with outer wall board, protruding piece is inserted into sleeve, then safety pin is inserted into the through hole of sleeve and protruding piece, complete photovoltaic photo-thermal plate and the connection of outer wall board, and make the connection of both more safe, beautiful, and can satisfy super low energy consumption building requirement.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated building technology, specifically to a connection structure for an exterior wall panel and a photovoltaic thermal panel for ultra-low energy consumption buildings. Background Technology

[0002] With my country's continuous improvement in building energy efficiency standards, ultra-low energy buildings are gradually becoming the development direction of the construction industry. In ultra-low energy buildings, the performance of the building envelope system is crucial. It not only needs to possess excellent thermal insulation performance but also needs to be organically integrated with renewable energy systems to achieve near-zero or zero-carbon goals. Currently, combining "ultra-low energy sandwich insulated unit wall panels" with photovoltaic thermal panel products such as "PVT boards / photovoltaic panels" has become one of the important means to achieve building energy conservation.

[0003] Existing technologies for connecting photovoltaic (PV) thermal panels such as PVT boards and solar panels to building envelope systems have several shortcomings. For example, while fixing PVT boards or PV panels to the building structure using metal clamps, secondary joists, and main joists is suitable for roof or ground installation, it presents the following problems when used on building walls: 1) Significant thickness: The thickness increases significantly after the metal clamps, secondary joists, and main joists are stacked with the PVT boards or PV panels, resulting in a large bending moment on the external envelope system, which is detrimental to structural stability; 2) Poor aesthetics: The large spacing between PVT boards or PV panels affects the overall aesthetics of the building facade; 3) Thermal bridging and leakage risks: This connection method does not consider the integration of PVT boards or PV panels with the building envelope system, which may lead to thermal bridging, reduced insulation performance, and even leakage problems; 4) Lack of integrated design: The synergy between PVT boards, PV panels, and the building envelope system in the manufacturing, transportation, and installation stages is not comprehensively considered, leading to various problems at each stage.

[0004] Therefore, how to safely, accurately, and aesthetically connect exterior wall panels with photovoltaic thermal panels (PVT panels / photovoltaic panels) is a technical problem currently facing technicians in the industry. Utility Model Content

[0005] The purpose of this utility model is to provide a connection structure for exterior wall panels and photovoltaic thermal panels in ultra-low energy consumption buildings, so as to solve the problems in the background art.

[0006] This utility model embodiment provides a connection structure for an exterior wall panel and a photovoltaic thermal panel for an ultra-low energy consumption building, including: an internal connector, an external connector, and a safety pin;

[0007] The internal connector includes: a bottom plate and a protrusion;

[0008] The protrusion is vertically positioned in the middle of the bottom plate, and the head end of the protrusion is provided with an external thread.

[0009] The external connector includes: an end plate and a sleeve;

[0010] The sleeve is vertically disposed at the middle position of the end plate, and the hole wall of the sleeve is provided with internal threads;

[0011] Both the protrusion and the sleeve are provided with a through hole for the safety pin to pass through;

[0012] The bottom plate is disposed inside the outer wall panel, and the end plate is disposed inside the photovoltaic thermal plate;

[0013] The protrusion extends into the sleeve and the external thread engages with the internal thread. The safety pin is inserted into the through hole to fix the protrusion in the sleeve, thereby connecting the photovoltaic thermal panel to the outer wall panel.

[0014] Based on the above scheme, the connection structure of the exterior wall panel and photovoltaic thermal plate for ultra-low energy consumption buildings of this utility model is provided with internal connectors, external connectors and safety pins. The internal connectors include a bottom plate and a protrusion on the bottom plate. The protrusion has external threads. The external connectors include an end plate and a sleeve on the end plate. The sleeve has internal threads in its hole wall. Both the protrusion and the sleeve have through holes. The bottom plate is located inside the exterior wall panel and the end plate is located inside the photovoltaic thermal plate. This utility model discloses a connection structure for an exterior wall panel and a photovoltaic thermal plate used in ultra-low energy consumption buildings. When the photovoltaic thermal plate is connected to the exterior wall panel, it is attached to the outer side of the exterior wall panel, and a protrusion extends into the sleeve, with the external thread of the protrusion engaging with the internal thread of the sleeve. When the through hole of the protrusion aligns with the through hole of the sleeve, a safety pin is inserted into the through holes of the sleeve and the protrusion to complete the connection between the photovoltaic thermal plate and the exterior wall panel, ensuring the stability and sealing between the two, making the connection safer and more aesthetically pleasing, and meeting the requirements of ultra-low energy consumption buildings.

[0015] In one feasible solution, a steel keel is provided inside the outer wall panel, and a fixing frame is provided inside the photovoltaic thermal panel;

[0016] The bottom plate and the end plate are respectively fixed to the steel keel and the fixed frame.

[0017] In one feasible solution, the bottom plate and the end plate are respectively fixed to the steel keel and the fixing frame by self-tapping screws.

[0018] In one feasible solution, a thermal break pad is provided between the bottom plate and the steel keel.

[0019] In one feasible solution, the thermal break pad is made of high-density polyurethane.

[0020] In one feasible solution, an elastic adjusting shim is provided between the end plate and the fixed frame.

[0021] In one feasible solution, a strip-shaped pressure block is provided at the connection between the end plate and the fixed frame to resist horizontal loads.

[0022] In one feasible solution, the exterior wall panel is a sandwich insulation unit assembled exterior wall panel, which consists of, from the inside out, an interior surface, an inner panel, a sound insulation layer, a thermal insulation layer, a steel keel thermal insulation bridge layer, an outer panel, and an exterior finish.

[0023] The photovoltaic thermal plate is a photovoltaic panel or a photovoltaic thermal composite panel.

[0024] In one feasible solution, the bottom plate and the end plate are both steel plates, and the protrusion and the sleeve are made of steel.

[0025] In one feasible solution, the protrusion and the sleeve are fixed to the bottom plate and the end plate respectively by welding.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] The connection structure of this utility model features an internal connector and a thermal break pad fixed to the steel keel, while the external connector is fixed to the fixing frame of the photovoltaic thermal panel. The protruding part of the internal connector is inserted into the sleeve of the external connector and secured by a safety pin. The safety pin provides shock absorption and prevents loosening, further enhancing the reliability of the connection. The thermal break pad, placed between the internal connector and the steel keel, acts as a thermal break, effectively blocking heat transfer and ensuring the thermal performance of the composite envelope system, thus contributing to achieving the energy-saving goals of ultra-low energy consumption buildings.

[0028] Furthermore, after installation using the connection structure of this utility model, the gaps between the PVT panels and photovoltaic panels of the photovoltaic thermal panel are smaller from the perspective of the building's exterior surface, similar to the effect of a frameless glass curtain wall, making the overall exterior surface of the building more aesthetically pleasing and improving its appearance quality. The photovoltaic thermal panel is fixed to the fixed frame by connectors, and the fixed frame is pressed down by strip blocks, which can effectively resist horizontal loads, enhance the stability of the connection, and ensure safety during use. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings in an embodiment of this utility model.

[0031] Figure 2 As described in the embodiments of this utility model Figure 1 A magnified view of a portion of the image;

[0032] Figure 3 This is a schematic diagram of the internal connecting parts in an embodiment of the present utility model;

[0033] Figure 4 This is a schematic diagram of the external connector in an embodiment of the present utility model;

[0034] Figure 5 This is a schematic diagram showing the connection between the external connector and the internal connector in an embodiment of this utility model.

[0035] Numbering on the map:

[0036] 1. Internal connector; 11. Bottom plate; 12. Protrusion; 2. External connector; 21. End plate; 22. Sleeve; 3. Safety pin; 301. Through hole; 4. Exterior wall panel; 41. Steel keel; 5. Photovoltaic thermal panel; 51. Fixing frame; 6. Self-tapping screw; 7. Thermal break pad; 8. Adjusting shim; 9. Strip pressure block. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", 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 this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The technical solution of this utility model will be described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0041] As described in the background section of this application, the existing connection methods between PVT boards, photovoltaic panels, and other photovoltaic thermal panels and building envelope systems have many shortcomings. For example, while fixing PVT boards or photovoltaic panels to the building structure using metal blocks, secondary joists, and main joists is suitable for roof or ground installation, it presents the following problems when used on building walls: 1) Large thickness: The thickness increases significantly after the metal blocks, secondary joists, and main joists are stacked with the PVT boards or photovoltaic panels, resulting in a large bending moment on the external envelope system, which is detrimental to structural stability; 2) Poor aesthetics: The large spacing between PVT boards or photovoltaic panels affects the overall aesthetics of the building facade; 3) Thermal bridging and leakage risks: This connection method does not consider the integration of PVT boards or photovoltaic panels with the building envelope system, which may lead to thermal bridging, reduce insulation performance, and even cause leakage problems; 4) Lack of integrated design: The synergy between PVT boards, photovoltaic panels, and the building envelope system in the manufacturing, transportation, and installation stages is not comprehensively considered, leading to various problems in each stage.

[0042] Therefore, how to safely, accurately, and aesthetically connect exterior wall panels with photovoltaic thermal panels (PVT panels / photovoltaic panels) is a technical problem currently facing technicians in the industry.

[0043] To address the aforementioned problems, the inventors of this application have proposed a technical solution, the specific embodiments of which are as follows:

[0044] Figure 1 This is a schematic diagram of the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings in an embodiment of this utility model. Figure 2 As described in the embodiments of this utility model Figure 1 A magnified view of a portion of the image. Figure 3 This is a schematic diagram of the internal connecting parts in an embodiment of the present utility model. Figure 4 This is a schematic diagram of the external connector in an embodiment of the present utility model. Figure 5 This is a schematic diagram showing the connection between the external connector and the internal connector in an embodiment of this utility model.

[0045] like Figures 1 to 5 As shown, the connection structure for the exterior wall panel and photovoltaic thermal panel of the ultra-low energy consumption building in this embodiment includes: an internal connector 1, an external connector 2, and a safety pin 3.

[0046] The internal connector 1 includes a bottom plate 11 and a protrusion 12.

[0047] The protrusion 12 is vertically fixed at the center of the bottom plate 11. The protrusion 12 has an external thread on the head end away from the bottom plate 11, forming a threaded section at the head end of the protrusion 12.

[0048] The external connector 2 includes an end plate 21 and a sleeve 22.

[0049] The sleeve 22 is vertically positioned at the center of the end plate 21. The inner wall of the sleeve 22 is provided with internal threads, and the internal threads of the sleeve 22 are adapted to the external threads of the protrusion 12.

[0050] Both the head end of the protrusion 12 and the end of the sleeve 22 are provided with through holes 301, and the through holes 301 are arranged perpendicular to the axial direction of the protrusion 12 and the sleeve 22.

[0051] The length of the safety pin 3 is greater than the outer diameter of the sleeve 22, and it can pass through the through hole 301 of the sleeve 22.

[0052] The exterior wall panel 4 is installed on the building wall, and the bottom plate 11 of the internal connector 1 is installed inside the exterior wall panel 4 and is fixedly connected to the exterior wall panel 4.

[0053] The end plate 21 of the external connector 2 is disposed inside the photovoltaic thermal plate 5 and is used to fix it to the photovoltaic thermal plate 5.

[0054] In this embodiment, when the photovoltaic thermal plate 5 is connected to the outer wall panel 4, it is attached to the outer surface of the outer wall panel 4, and the protrusion 12 of the inner connector 1 extends into the sleeve 22 of the outer connector 2, with the external thread of the protrusion 12 meshing with the internal thread of the sleeve 22. When the through hole 301 of the protrusion 12 is opposite to the through hole 301 of the sleeve 22, the safety pin 3 is inserted into the through hole 301 of the sleeve 22 and the protrusion 12, fixing the protrusion 12 and the sleeve 22 together, and preventing the protrusion 12 from rotating or moving axially relative to the sleeve 22, thus completing the connection between the photovoltaic thermal plate 5 and the outer wall panel 4 and ensuring a stable connection and sealing between them.

[0055] It is not difficult to see from the above that the connection structure of the exterior wall panel and photovoltaic thermal plate for ultra-low energy consumption buildings in this embodiment is provided with internal connectors, external connectors and safety pins. The internal connectors include a bottom plate and a protrusion on the bottom plate. The protrusion has external threads. The external connectors include an end plate and a sleeve on the end plate. The sleeve has internal threads in its hole wall. Both the protrusion and the sleeve have through holes. The bottom plate is located inside the exterior wall panel and the end plate is located inside the photovoltaic thermal plate. This embodiment describes a connection structure for an exterior wall panel and a photovoltaic thermal panel used in ultra-low energy consumption buildings. When the photovoltaic thermal panel is connected to the exterior wall panel, it is attached to the outer side of the exterior wall panel, and a protrusion extends into the sleeve. The external thread of the protrusion engages with the internal thread of the sleeve. When the through hole of the protrusion aligns with the through hole of the sleeve, a safety pin is inserted into the through holes of the sleeve and the protrusion to complete the connection between the photovoltaic thermal panel and the exterior wall panel. This ensures the stability and sealing between the two, making the connection safer and more aesthetically pleasing, and meeting the requirements of ultra-low energy consumption buildings.

[0056] Optionally, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings includes a steel keel 41 inside the exterior wall panel 4 and a fixing frame 51 inside the photovoltaic thermal panel 5.

[0057] The bottom plate 11 of the internal connector 1 is fixed to the steel keel 41 of the outer wall panel 4, and the end plate 21 of the external connector 2 is fixed to the fixing frame 51 of the photovoltaic thermal panel 5.

[0058] Furthermore, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal plate for ultra-low energy consumption buildings has the bottom plate 11 of the internal connector 1 fixed to the steel keel 41 of the exterior wall panel 4 by self-tapping screws 6, and the end plate 21 of the external connector 2 also fixed to the fixing frame 51 of the photovoltaic thermal plate 5 by self-tapping screws 6.

[0059] Furthermore, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings has a thermal break pad 7 between the bottom plate 11 of the internal connector 1 and the steel keel 41 of the exterior wall panel 4, which serves as a thermal break and effectively prevents heat transfer.

[0060] Furthermore, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings, the thermal break pad 7 between the bottom plate 11 and the steel keel 41 is made of high-density polyurethane material. Of course, the thermal break pad 7 can also be made of other thermal break materials that meet the requirements.

[0061] Furthermore, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings includes an adjusting shim 8 between the end plate 21 of the external connector 2 and the fixing frame 51.

[0062] The adjusting shim 8 is made of elastic material, which allows its thickness to be elastically compressed and adjusted to accommodate fixed frames 51 of different thicknesses, ensuring a tight connection between the external connector 2 and the photovoltaic thermal plate 5.

[0063] Furthermore, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings is provided with a strip-shaped pressure block 9 at the connection between the end plate 21 of the external connector 2 and the fixed frame 51. The two ends of the strip-shaped pressure block 9 press down on the fixed frame 51 to resist horizontal loads.

[0064] Optionally, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings includes an exterior wall panel 4 that is a sandwich-insulated unit prefabricated exterior wall panel. From the inside out, it consists of an interior surface, an inner panel, a sound insulation layer, a thermal insulation layer, a steel keel thermal insulation bridge layer, an outer panel, and an exterior finish. The exterior wall panel 4 is a key component of ultra-low energy consumption buildings, and its structural design directly affects the building's thermal insulation performance and service life.

[0065] Photovoltaic thermal panels 5 utilize either photovoltaic (PV) panels or photovoltaic-thermal composite (PVT) panels. A PV panel is a device that converts solar energy into electrical energy using high-efficiency monocrystalline or polycrystalline silicon photovoltaic cells. A PVT panel, based on the PV panel, adds a photothermal conversion function, providing both electrical and thermal energy, thus improving energy efficiency. Photovoltaic thermal panels are crucial energy equipment in ultra-low energy consumption buildings, and their structural design directly affects energy efficiency and service life.

[0066] Optionally, in this embodiment, the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings has a bottom plate 11 of the internal connector 1 made of steel plate and a protrusion 12 made of steel rod. The end of the protrusion 12 is fixed to the bottom plate 11 by welding, forming an integral part with the bottom plate 11.

[0067] The end plate 21 of the internal connector 2 is also made of steel plate, and the sleeve 22 is made of steel. The sleeve 22 is also fixed to the end plate 21 by welding, forming an integral part with the end plate 21.

[0068] The specific installation steps of the connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings of this utility model are as follows:

[0069] Step 1: According to the design drawings, weld and assemble the steel keel 41 of the sandwich insulation unit prefabricated exterior wall panel: Use a calibration tool to calibrate the dimensions of the welded steel keel 41, then place the inner panel inside the steel keel, and according to the design requirements, use screws or other fixing methods to firmly fix the inner panel to the steel keel 41; lay a sound insulation layer and a heat insulation layer between the inner panel and the steel keel.

[0070] Step 2: Mark the installation positions of the thermal break pads and internal connectors on the steel keel 41 according to the design requirements; use self-tapping screws to fix the bottom plate 11 of the thermal break pads 7 and internal connectors 1 to the corresponding positions on the steel keel 41; install the steel keel thermal break layer on the thermal break pads. The thermal break layer should be tightly bonded to the steel keel 41 and the thermal break pads to ensure the thermal insulation effect.

[0071] Step 3: Using a special drill bit that matches the outer panel, make holes in the corresponding positions of the laid-out outer panel; place the outer panel with the holes made on the outside of the steel keel, and use screws or other fixing methods to firmly fix the outer panel to the steel keel 41.

[0072] Step 4: Fix the end plate 21 of the external connector 2 of the two-section connector to the subframe 51 of the PVT board / photovoltaic thermal plate 5 with self-tapping screws.

[0073] Step 5: Connect the outer connector 2 of the two-section connector to the inner connector 1. When connecting, ensure that the protrusion 12 of the inner connector and the sleeve 22 of the outer connector are accurately positioned and that the interface is tightly fitted without gaps. Then, insert the safety pin 3 vertically into the through hole 301 on the protrusion 12 and the sleeve 22 to ensure the overall stability and safety of the connector.

[0074] Step 6: Carry out exterior finishing work according to design requirements. After the exterior finish is dry, install the photovoltaic thermal panels (PVT panels or photovoltaic panels).

[0075] Step 7: After the photovoltaic thermal panels (PVT panels or photovoltaic panels) are installed, install foam strips between the photovoltaic thermal panels (PVT panels or photovoltaic panels). The foam strips should fit tightly against the gaps between the panels to fill and seal them. Apply silicone weather-resistant sealant to the outside of the foam strips. The silicone weather-resistant sealant should be applied evenly to cover the gaps and ensure a good seal to prevent rainwater leakage and air penetration.

[0076] In this utility model, unless otherwise explicitly specified and limited, the first feature being "on" or "below" the second feature can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate medium.

[0077] Furthermore, "above," "on top of," and "above" the first feature in relation to the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "under," and "beneath" the first feature in relation to the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0078] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A connection structure for exterior wall panels and photovoltaic thermal panels in ultra-low energy consumption buildings, characterized in that, include: Internal connectors, external connectors, and safety pins; The internal connector includes: a bottom plate and a protrusion; The protrusion is vertically positioned in the middle of the bottom plate, and the head end of the protrusion is provided with an external thread. The external connector includes: an end plate and a sleeve; The sleeve is vertically disposed at the middle position of the end plate, and the hole wall of the sleeve is provided with internal threads; Both the protrusion and the sleeve are provided with a through hole for the safety pin to pass through; The bottom plate is disposed inside the outer wall panel, and the end plate is disposed inside the photovoltaic thermal plate; The protrusion extends into the sleeve and the external thread engages with the internal thread. The safety pin is inserted into the through hole to fix the protrusion in the sleeve, thereby connecting the photovoltaic thermal panel to the outer wall panel.

2. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 1, characterized in that, The exterior wall panel is equipped with a steel keel, and the photovoltaic thermal panel is equipped with a fixing frame. The bottom plate and the end plate are respectively fixed to the steel keel and the fixed frame.

3. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 2, characterized in that, The bottom plate and the end plate are respectively fixed to the steel keel and the fixed frame with self-tapping screws.

4. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 2, characterized in that, A thermal break pad is provided between the bottom plate and the steel keel.

5. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 4, characterized in that, The thermal break pad is made of high-density polyurethane.

6. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 2, characterized in that, An elastic adjusting shim is provided between the end plate and the fixed frame.

7. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 2, characterized in that, A strip-shaped pressure block is provided at the connection between the end plate and the fixed frame to resist horizontal loads.

8. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 1, characterized in that, The exterior wall panel is a sandwich insulation unit prefabricated exterior wall panel, which consists of, from the inside out, an interior surface, an inner panel, a sound insulation layer, a thermal insulation layer, a steel keel thermal insulation and thermal break layer, an outer panel, and an exterior finish. The photovoltaic thermal plate is a photovoltaic panel or a photovoltaic thermal composite panel.

9. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 1, characterized in that, Both the bottom plate and the end plate are made of steel, and the protrusion and the sleeve are made of steel.

10. The connection structure between the exterior wall panel and the photovoltaic thermal panel for ultra-low energy consumption buildings according to claim 9, characterized in that, The protrusion and the sleeve are fixed to the bottom plate and the end plate respectively by welding.

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