Building energy-saving roof system based on full-spectrum self-adaptive composite flexible phase-change material

Abstract

The utility model belongs to the technical field of common building construction, and provides a building energy-saving roof system based on a full-spectrum self-adaptive composite flexible phase-change material. The building energy-saving roof system based on the full-spectrum self-adaptive composite flexible phase-change material comprises a first rolling assembly, a summer energy-saving diaphragm, a second rolling assembly, a winter energy-saving diaphragm and a first driving assembly, wherein the first rolling assembly is fixedly arranged at one end of a roof; the summer energy-saving membrane is rolled in the first rolling assembly; the second winding assembly is arranged on one side of the first winding assembly. The winter energy-saving diaphragm is wound in the second winding assembly, and one end of the winter energy-saving diaphragm is connected with one end of the summer energy-saving diaphragm; the first driving assembly is fixedly arranged, and the power output end of the first driving assembly is connected with the second winding assembly. The building energy-saving roof system based on the full-spectrum self-adaptive composite flexible phase-change material can provide a good energy-saving effect in summer and winter.

Description

Technical Field

[0001] This utility model belongs to the field of general building construction technology, and specifically relates to a building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material. Background Technology

[0002] Building cooling and heating energy consumption constitutes a major portion of daily energy consumption. Effectively reducing building cooling and heating energy consumption will play a positive role in reducing overall energy consumption.

[0003] The roof is an important part of the building for heat exchange. In existing technologies, energy-saving roof systems usually involve laying special functional materials on the roof to insulate against heat in summer and absorb heat in winter, thereby achieving the goal of reducing energy consumption.

[0004] However, current energy-saving roof systems typically involve laying a single functional material on the roof, such as insulation or heat-absorbing materials. This can only achieve good energy-saving effects in a single season, while the energy-saving effect is poor or even counterproductive in other seasons.

[0005] For example, laying a photothermal conversion composite phase change material film on the roof can increase the absorption rate of sunlight, absorb and store heat, raise the indoor temperature, and reduce the amount of heat lost from the inside of the building walls to the outside by exchanging the stored heat with the heat of the external environment outside the building walls. Therefore, it can reduce heating energy consumption in winter; however, in summer or when the temperature is high, it will make the indoor temperature too high and increase cooling energy consumption.

[0006] Laying a radiative cooling composite phase change material film on the roof can reduce the roof's solar absorption rate and increase its infrared emissivity, thereby lowering the indoor temperature inside the building walls. This can reduce cooling energy consumption in summer; however, in winter or when temperatures are low, it can cause the indoor temperature to drop too low, increasing heating energy consumption. Utility Model Content

[0007] This invention provides a building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material, aiming to provide a roof system that can achieve energy-saving effects in both winter and summer.

[0008] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a building energy-saving roof system based on a full-spectrum adaptive composite flexible phase change material, comprising:

[0009] The first winding assembly is fixedly installed at one end of the roof;

[0010] The summer energy-saving film is wound up inside the first winding assembly;

[0011] The second winding assembly is located on one side of the first winding assembly;

[0012] A winter energy-saving film is wound up in the second winding assembly, with one end of the winter energy-saving film connected to one end of the summer energy-saving film;

[0013] The first drive assembly is fixedly installed, and its power output end is connected to the second winding assembly to drive the second winding assembly to move on the roof along a direction perpendicular to the length of the first winding assembly.

[0014] Specifically, in summer and winter, the first drive assembly drives the second winding assembly to move to the end of the roof away from the first winding assembly, while in other seasons, the first drive assembly drives the second winding assembly to move to the end of the roof closer to the first winding assembly; and in summer, the summer energy-saving film extends out of the first winding assembly and is laid on the roof, while in winter, the winter energy-saving film extends out of the second winding assembly and is laid on the roof.

[0015] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, both the first winding assembly and the second winding assembly are electric winding boxes, which retract and release the summer energy-saving film and the winter energy-saving film by rotating the motor in both directions.

[0016] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the first winding assembly includes:

[0017] The first box has a retraction opening on the side;

[0018] The first rotating shaft is rotatably disposed inside the first housing, and one end of the summer energy-saving diaphragm passes through the opening and is connected to the first rotating shaft.

[0019] A first drive box is located at one end of the first box body. A first spring is provided inside the first drive box and the first spring is connected to the first rotating shaft.

[0020] The first limiting component is connected to the first housing and is used to limit the rotation of the first rotating shaft.

[0021] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the first rotating shaft has a first limiting surface on its side, and the first limiting component includes:

[0022] The first limiting rod has one end used to abut against the first limiting surface to restrict the rotation of the first rotating shaft;

[0023] The first limit drive assembly is connected to the first housing, and its power output end is connected to the first limit rod, used to drive the first limit rod to move closer to or away from the first rotating shaft.

[0024] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the second winding assembly includes:

[0025] The second compartment has a retraction opening on the side;

[0026] The second rotating shaft is rotatably disposed inside the second housing, and one end of the winter energy-saving diaphragm passes through the opening and is connected to the second rotating shaft.

[0027] A second drive box is located at one end of the second housing. A second spring is provided inside the second drive box and is connected to the second rotating shaft.

[0028] The second limiting component is connected to the second housing and is used to limit the rotation of the second shaft.

[0029] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the second rotating shaft side is provided with a second limiting surface, and the second limiting component includes:

[0030] The second limiting rod has one end used to abut against the second limiting surface to restrict the rotation of the second rotating shaft;

[0031] The second limit drive assembly is connected to the second housing, and its power output end is connected to the second limit rod, which is used to drive the second limit rod to move closer to or away from the second rotating shaft.

[0032] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, a guide component is also included. The guide component is fixedly installed on the roof and connected to the second winding component to limit the sliding direction of the second winding component.

[0033] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the guiding component includes:

[0034] Two slide rails are respectively located on both sides of the roof along the length of the second winding assembly;

[0035] Two sliders interact with the two slide rails respectively, and both sliders are connected to the second winding assembly.

[0036] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the first driving component includes:

[0037] The mounting bracket is fixedly installed on one side of the roof.

[0038] A drive roller is located at one end of the roof and rotates in conjunction with the mounting frame.

[0039] The driven roller is located at the other end of the roof and rotates in conjunction with the mounting frame.

[0040] The motor assembly, along with the mounting bracket, has its power output end connected to the drive roller;

[0041] A conveyor belt is fitted onto the drive roller and the driven roller, and the conveyor belt is connected to the second winding assembly.

[0042] In one possible implementation of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, the summer energy-saving membrane is a radiation-cooling composite phase change material membrane, and the winter energy-saving membrane is a photothermal conversion composite phase change material membrane.

[0043] The beneficial effects of the energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model are as follows: Compared with the prior art, the energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model, in summer, the first driving component drives the second winding component to move to the other end of the roof. During this process, the first winding component simultaneously releases the summer energy-saving film, laying the summer energy-saving film on the roof to achieve the effect of reducing cooling energy consumption; in autumn, when cooling and heating are not required, the first driving component drives the second winding component to move to the end where the first winding component is located. During this process, the first winding component simultaneously winds up the summer energy-saving film. The system features a first drive assembly that drives a second winding assembly to move towards the other end of the roof during winter. During this process, the second winding assembly simultaneously releases the winter energy-saving film, laying it on the roof to reduce heating energy consumption. In spring, when cooling and heating are not required, the first drive assembly drives the second winding assembly to the end where the first winding assembly is located. During this process, the second winding assembly simultaneously winds up the winter energy-saving film, protecting it. Therefore, the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this invention can achieve good energy-saving effects in both winter and summer. Attached Figure Description

[0044] Figure 1 A three-dimensional structural diagram of a building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided for an embodiment of this utility model during summer.

[0045] Figure 2 A three-dimensional structural diagram of a building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided for an embodiment of this utility model during winter.

[0046] Figure 3 for Figure 2 Enlarged view of part A in the image;

[0047] Figure 4 A three-dimensional structural diagram of a building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided for an embodiment of this utility model during spring and autumn seasons;

[0048] Explanation of reference numerals in the attached figures:

[0049] 10. First winding assembly; 11. First housing; 12. First shaft; 13. First drive housing;

[0050] 14. First mainspring spring; 15. First limit rod; 16. First limit drive assembly;

[0051] 20. Second winding assembly; 21. Second housing; 22. Second shaft; 23. Second drive box;

[0052] 24. Second spring; 25. Second limit rod; 26. Second limit drive assembly;

[0053] 30. Summer energy-saving diaphragm; 40. Winter energy-saving diaphragm; 51. Slide rail; 52. Slider;

[0054] 61. Mounting frame; 62. Drive roller; 63. Driven roller; 64. Motor assembly; 65. Conveyor belt. Detailed Implementation

[0055] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0056] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0057] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0058] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0059] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not 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 on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0060] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0061] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0062] Please refer to the following: Figures 1 to 4 The present invention describes an energy-saving roof system based on a full-spectrum adaptive composite flexible phase change material. The energy-saving roof system includes a first winding assembly 10, a summer energy-saving film 30, a second winding assembly 20, a winter energy-saving film 40, and a first drive assembly. The first winding assembly 10 is fixedly mounted at one end of the roof. The summer energy-saving film 30 is wound inside the first winding assembly 10. The second winding assembly 20 is located on one side of the first winding assembly 10. The winter energy-saving film 40 is wound inside the second winding assembly 20, with one end of the winter energy-saving film 40 connected to one end of the summer energy-saving film 30. The first drive assembly is fixedly mounted, and its power output end is connected to the second winding assembly 20 to drive the second winding assembly 20 to move on the roof along a direction perpendicular to the length of the first winding assembly 10.

[0063] In summer and winter, the first drive assembly drives the second winding assembly 20 to move to the end of the roof away from the first winding assembly 10; in other seasons, such as... Figure 4 As shown, the first drive assembly drives the second take-up assembly 20 to move to the roof near one end of the first take-up assembly 10.

[0064] In summer, such as Figure 1 As shown, in summer, the energy-saving diaphragm 30 extends out of the first winding assembly 10 and is laid on the roof; in winter, as... Figure 2 As shown, the winter energy-saving membrane 40 extends out of the second winding assembly 20 and is laid on the roof.

[0065] It should be noted that the summer mentioned above refers to the season when indoor cooling is required, the winter refers to the season when indoor heating is required, and the spring and autumn seasons are the seasons when indoor cooling and heating are not required.

[0066] The beneficial effects of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this embodiment of the invention are as follows: Compared with the prior art, the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this embodiment of the invention, in summer, the first driving component drives the second winding component 20 to move to the other end of the roof. During this process, the first winding component 10 simultaneously releases the summer energy-saving film 30, laying the summer energy-saving film 30 on the roof to achieve the effect of reducing cooling energy consumption; in autumn, when cooling and heating are not required, the first driving component drives the second winding component 20 to move to the end where the first winding component 10 is located. During this process, the first winding component 10 simultaneously winds up the summer energy-saving film. The first drive assembly 10 drives the second winding assembly 20 to move to the other end of the roof. During this process, the second winding assembly 20 simultaneously releases the winter energy-saving film 40, laying it on the roof to reduce heating energy consumption. In spring, when cooling and heating are not required, the first drive assembly 10 drives the second winding assembly 20 to move to the end where the first winding assembly 10 is located. During this process, the second winding assembly 20 simultaneously winds up the winter energy-saving film 40, protecting it. Therefore, the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided by this utility model embodiment can achieve good energy-saving effects in both winter and summer.

[0067] It should be noted that the summer energy-saving diaphragm 30 is a radiation-cooling composite phase change material diaphragm, which is made by uniformly mixing a polymer material for shaping, a phase change material for storing and releasing heat, and a radiation-cooling material for increasing solar reflectivity, and then processing it through an extruder or the like.

[0068] Winter energy-saving membrane 40 is a photothermal conversion composite phase change material membrane, which is made by uniformly mixing polymer material for shaping, phase change material for storing and releasing heat, and photothermal conversion material for increasing solar light absorption rate, and then processing it through an extruder or the like.

[0069] Among them, the polymer material is a linear triblock copolymer, the phase change material is paraffin wax, the radiation cooling material is poly(vinylidene fluoride-co-hexafluoropropylene), and the photothermal conversion material is carbon nanotubes.

[0070] The ends of the summer energy-saving diaphragm 30 and the winter energy-saving diaphragm 40 are connected together using hot-melt technology, or they can be bonded together using glue, tape, etc.

[0071] Preferably, the thickness of the radiation-cooling composite phase change material film and the photothermal conversion composite phase change material film is 2 mm.

[0072] In addition, the summer energy-saving membrane 30 can be replaced by other materials that can provide heat insulation in summer; the winter energy-saving membrane 40 can be replaced by other materials that can absorb heat and keep warm in winter.

[0073] like Figure 1 and Figure 2 As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the first winding assembly 10 and the second winding assembly 20 are both electric winding boxes, which retract and release the summer energy-saving film 30 and the winter energy-saving film 40 by the forward and reverse rotation of the motor.

[0074] It should be noted that the electric winding box is an existing device, which usually consists of a box body, a reel, and a motor. The motor drives the reel to rotate, winding the film into the box body.

[0075] The first winding assembly 10 and the second winding assembly 20 use electric winding boxes, making operation more convenient.

[0076] like Figure 1 and Figure 2 As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the first winding assembly 10 includes a first housing 11, a first rotating shaft 12, a first drive box 13, and a first limiting assembly. The first housing 11 has a winding opening on its side. The first rotating shaft 12 is rotatably disposed inside the first housing 11, and one end of the summer energy-saving diaphragm 30 passes through the winding opening and is connected to the first rotating shaft 12. The first drive box 13 is disposed at one end of the first housing 11, and a first spring 14 is disposed inside the first drive box 13. The first spring 14 is connected to the first rotating shaft 12. The first limiting assembly is connected to the first housing 11 and is used to limit the rotation of the first rotating shaft 12.

[0077] Specifically, such as Figure 1 and Figure 2 As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the first rotating shaft 12 is provided with a first limiting surface on its side. The first limiting component includes a first limiting rod 15 and a first limiting drive component 16. One end of the first limiting rod 15 is used to abut against the first limiting surface to limit the rotation of the first rotating shaft 12. The first limiting drive component 16 is connected to the first housing 11, and the power output end is connected to the first limiting rod 15 to drive the first limiting rod 15 to move closer to or away from the first rotating shaft 12.

[0078] like Figure 1and Figure 2 As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the second winding assembly 20 includes a second housing 21, a second rotating shaft 22, a second drive box 23, and a second limiting assembly. The second housing 21 has a winding opening on its side. The second rotating shaft 22 is rotatably disposed inside the second housing 21, and one end of the winter energy-saving diaphragm 40 passes through the winding opening and is connected to the second rotating shaft 22. The second drive box 23 is disposed at one end of the second housing 21, and a second spring 24 is disposed inside the second drive box 23. The second spring 24 is connected to the second rotating shaft 22. The second limiting assembly is connected to the second housing 21 to limit the rotation of the second rotating shaft 22.

[0079] Specifically, such as Figure 1 and Figure 2 As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the second rotating shaft 22 is provided with a second limiting surface on its side. The second limiting component includes a second limiting rod 25 and a second limiting drive component 26. One end of the second limiting rod 25 is used to abut against the second limiting surface to limit the rotation of the second rotating shaft 22. The second limiting drive component 26 is connected to the second housing 21, and the power output end is connected to the second limiting rod 25 to drive the second limiting rod 25 to move closer to or away from the second rotating shaft 22.

[0080] It should be noted that the second winding assembly 20, driven by the first driving assembly, serves as the power source to pull out the summer energy-saving diaphragm 30 and the winter energy-saving diaphragm 40. The first spring spring 14 and the second spring spring 24 drive the first rotating shaft 12 and the second rotating shaft 22 to reset. Compared with using a motor drive, the production cost is lower.

[0081] Specifically, the first and second limiting surfaces are offset from the summer energy-saving diaphragm 30, the winter energy-saving diaphragm 40, the first spring, and the second spring. The first limiting drive assembly 16 and the second limiting drive assembly 26 are devices such as electric actuators, cylinders, or hydraulic cylinders.

[0082] Preferably, the first rotating shaft 12 and the second rotating shaft 22 extend out of the first housing 11 and the second housing 21 respectively, and the first limiting surface and the second limiting surface are located on the outside of the first housing 11 and the second housing 21 for easy observation and confirmation of the situation.

[0083] In summer, when the summer energy-saving film 30 needs to be laid, the second limiting rod 25 abuts against the second limiting surface and locks the second rotating shaft 22; the first limiting rod 15 moves away from the first limiting surface, allowing the first rotating shaft 12 to rotate; then, the first drive assembly drives the second housing 21 to move to the other end of the roof, pulling the summer energy-saving film 30 out of the first housing 11. After the summer energy-saving film 30 is laid, the first limiting rod 15 abuts against the first limiting surface and locks the first rotating shaft 12 to prevent the summer energy-saving film 30 from being subjected to continuous tension.

[0084] In winter, when the winter energy-saving film 40 needs to be laid, the first limiting rod 15 abuts against the first limiting surface, locking the first rotating shaft 12; the second limiting rod 25 moves away from the second limiting surface, allowing the second rotating shaft 22 to rotate; then, the first drive assembly drives the second housing 21 to move to the other end of the roof, pulling the winter energy-saving film 40 out of the second housing 21. After the winter energy-saving film 40 is laid, the second limiting rod 25 abuts against the second limiting surface, locking the second rotating shaft 22 to prevent the winter energy-saving film 40 from being subjected to continuous tension.

[0085] like Figure 1 and Figure 2 As shown, in a specific embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model embodiment, a guide component is also included. The guide component is fixedly installed on the roof and connected to the second winding component 20 to limit the sliding direction of the second winding component 20.

[0086] Specifically, such as Figure 1 and Figure 3 As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the guide component includes two slide rails 51 and two sliders 52. The two slide rails 51 are respectively arranged on both sides of the roof in the length direction of the second winding component 20; the two sliders 52 interact with the two slide rails 51 respectively, and both sliders 52 are connected to the second winding component 20.

[0087] It should be noted that the slide rail 51 is located on the side of the roof to avoid supporting the summer energy-saving membrane 30 or the winter energy-saving membrane 40, which would cause the summer energy-saving membrane 30 or the winter energy-saving membrane 40 to be separated from the roof and affect the energy-saving effect.

[0088] like Figure 1 and Figure 3As shown in the embodiment of the building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material provided in this utility model, the first drive assembly includes a mounting frame 61, a drive roller 62, a driven roller 63, a motor assembly 64, and a conveyor belt 65. The mounting frame 61 is fixedly mounted on one side of the roof; the drive roller 62 is located at one end of the roof and rotatably engages with the mounting frame 61; the driven roller 63 is located at the other end of the roof and rotatably engages with the mounting frame 61; the motor assembly 64 is connected to the mounting frame 61, and its power output end is connected to the drive roller 62; the conveyor belt 65 is sleeved on the drive roller 62 and the driven roller 63, and the conveyor belt 65 is connected to the second winding assembly 20.

[0089] Specifically, the conveyor belt 65 is a belt with a certain width and is fixedly connected to the second housing 21. The motor assembly 64 is a combination of an existing motor and a reducer.

[0090] It should be noted that the first drive component can also be a motor and a motor-driven screw, with the screw threaded into the second housing 21.

[0091] A first drive component can be provided on one side of the second winding component 20, or a first drive component can be provided on both sides of the second winding component 20, so that the second winding component 20 is subjected to more uniform force.

[0092] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material, characterized in that, include: The first winding assembly is fixedly installed at one end of the roof; The summer energy-saving film is wound up inside the first winding assembly; The second winding assembly is located on one side of the first winding assembly; A winter energy-saving film is wound up in the second winding assembly, with one end of the winter energy-saving film connected to one end of the summer energy-saving film; The first drive assembly is fixedly installed, and its power output end is connected to the second winding assembly to drive the second winding assembly to move on the roof along a direction perpendicular to the length of the first winding assembly. Specifically, in summer and winter, the first drive assembly drives the second winding assembly to move to the end of the roof away from the first winding assembly, while in other seasons, the first drive assembly drives the second winding assembly to move to the end of the roof closer to the first winding assembly; and in summer, the summer energy-saving film extends out of the first winding assembly and is laid on the roof, while in winter, the winter energy-saving film extends out of the second winding assembly and is laid on the roof.

2. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 1, characterized in that, Both the first winding assembly and the second winding assembly are electric winding boxes, which use the motor to rotate forward and reverse to wind up and release the summer energy-saving film and the winter energy-saving film.

3. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 1, characterized in that, The first take-up component includes: The first box has a retraction opening on the side; The first rotating shaft is rotatably disposed inside the first housing, and one end of the summer energy-saving diaphragm passes through the opening and is connected to the first rotating shaft. A first drive box is located at one end of the first box body. A first spring is provided inside the first drive box and the first spring is connected to the first rotating shaft. The first limiting component is connected to the first housing and is used to limit the rotation of the first rotating shaft.

4. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 3, characterized in that, The first rotating shaft has a first limiting surface on its side, and the first limiting component includes: The first limiting rod has one end used to abut against the first limiting surface to restrict the rotation of the first rotating shaft; The first limit drive assembly is connected to the first housing, and its power output end is connected to the first limit rod, used to drive the first limit rod to move closer to or away from the first rotating shaft.

5. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 1, characterized in that, The second take-up assembly includes: The second compartment has a retraction opening on the side; The second rotating shaft is rotatably disposed inside the second housing, and one end of the winter energy-saving diaphragm passes through the opening and is connected to the second rotating shaft. A second drive box is located at one end of the second housing. A second spring is provided inside the second drive box and is connected to the second rotating shaft. The second limiting component is connected to the second housing and is used to limit the rotation of the second shaft.

6. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 5, characterized in that, The second rotating shaft has a second limiting surface on its side, and the second limiting component includes: The second limiting rod has one end used to abut against the second limiting surface to restrict the rotation of the second rotating shaft; The second limit drive assembly is connected to the second housing, and its power output end is connected to the second limit rod, which is used to drive the second limit rod to move closer to or away from the second rotating shaft.

7. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 1, characterized in that, It also includes a guide assembly, which is fixedly mounted on the roof and connected to the second winding assembly to limit the sliding direction of the second winding assembly.

8. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 7, characterized in that, The guiding component includes: Two slide rails are respectively located on both sides of the roof along the length of the second winding assembly; Two sliders interact with the two slide rails respectively, and both sliders are connected to the second winding assembly.

9. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in claim 1, characterized in that, The first driving component includes: The mounting bracket is fixedly installed on one side of the roof. A drive roller is located at one end of the roof and rotates in conjunction with the mounting frame. The driven roller is located at the other end of the roof and rotates in conjunction with the mounting frame. The motor assembly, along with the mounting bracket, has its power output end connected to the drive roller; A conveyor belt is fitted onto the drive roller and the driven roller, and the conveyor belt is connected to the second winding assembly.

10. The building energy-saving roof system based on full-spectrum adaptive composite flexible phase change material as described in any one of claims 1-9, characterized in that, The summer energy-saving membrane is a radiation-cooling composite phase change material membrane, and the winter energy-saving membrane is a photothermal conversion composite phase change material membrane.

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