CN213927163U - Multilayer retreating type sun shading system - Google Patents

Abstract

The utility model relates to a multilayer formula solar shading system that advances that moves back, including building glass curtain wall, solar protection devices and controller, solar protection devices installs in the glass curtain wall outside, and solar protection devices includes the sunshade diaphragm that the multilayer level was laid, and the one end of every layer of sunshade diaphragm all sets firmly in glass curtain wall, and the other end all rotates and installs the sunshade and changes the board, and solar angle detection device is installed in the glass curtain wall outside, and the controller changes the turned angle of board according to solar angle detection device's every sunshade of detection signal real-time control. The utility model discloses under the prerequisite that blocks the field of vision at minimum, can be in real time and automatically adjust the turned angle of multilayer sunshade commentaries on classics board according to the sun irradiation angle with the light inlet quantity of control light to the surface diffuse reflection through sunshade diaphragm material turns into partial direct light and gets into indoorly with the scattered light, thereby reach the building energy-conservation and provide comfortable luminous environment effect, this system can make uncomfortable illuminance reduce 300% to 600% under the typical work condition, and make the annual unit area energy consumption reduce 36%.

Description

Multilayer retreating type sun shading system

Technical Field

The utility model relates to a building sunshade field, concretely relates to multilayer formula solar shading system that moves back.

Background

The indoor natural light environment has positive influence on the activities of people, a relatively complete evaluation system is provided for the evaluation of the indoor light environment, and the influence of the sun-shading design on the indoor light environment is still less considered in the actual sun shading or facade design.

At present, the research on the sun shading system mainly focuses on the influence of sun shading control and sun shading on energy consumption, and the control, the energy consumption and the indoor light environment are rarely considered simultaneously. In the sunshade design, the sunshade types are mainly classified into static sunshade and dynamic sunshade. In complex weather conditions, dynamic shading tends to be more adaptive and adjustable than static shading. The research in the field of static sunshade mainly focuses on the influence of the geometrical form of sunshade and the skin photovoltaic power generation on the energy consumption of buildings, and less considers the indoor luminous environment and the vision comfort level of people. In the dynamic sunshade system, the passive sunshade control system often makes the staff lose the control sense of the indoor environment and cause uncomfortable indoor light environment.

For example, chinese patent with application number CN201911143460.9 discloses an intelligent sun visor for building, which is convenient for angle adjustment, specifically: the two right-angle fixing seats are symmetrically arranged in the left-right direction, mounting seats are arranged on opposite surfaces of the two right-angle fixing seats, and fixing pieces are fixedly connected to the top ends of the right-angle fixing seats; a first rotating shaft is fixedly arranged between the two mounting seats in a penetrating manner; the middle part of the mounting seat is fixedly provided with a partition plate, and the sun shield is fixedly inserted between the partition plate and the inner top surface of the mounting seat; a supporting plate is fixedly connected between the upper ends of the right-angle fixing seats, and an angle adjusting mechanism is arranged at the bottom of the supporting plate; the fixed light sensor that is provided with on the preceding lateral wall of the right angle fixing base bottom of the left and right sides, light sensor are connected with external power source and controller, can adjust the sunshade angle of sunshading board along with the change of sun height, and what adopt is automatic adjustment mode, has improved the intelligent degree of device. However, the solar energy sun-shading device can only play a pure sun-shading effect, does not fully consider the indoor light environment comfort level of a building while achieving the sun-shading effect, and can only control the indoor light incoming amount by only shading a part of sunlight, but the shading mode often influences the indoor illumination condition of the building.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the problem that prior art exists, a multilayer formula solar shading system that moves back is proposed.

The utility model discloses a can realize through following technical scheme:

the utility model provides a multilayer formula solar shading system that advances that moves back, includes building glass curtain wall, solar protection devices and controller, and solar protection devices installs in the glass curtain wall outside, and solar protection devices includes the sunshade diaphragm that the multilayer level was laid, and the one end of every layer of sunshade diaphragm all sets firmly in glass curtain wall, and the other end all rotates and installs the sunshade commentaries on classics board, and solar angle detection device is installed to the glass curtain wall outside, and the controller is according to the turned angle of every sunshade commentaries on classics board of solar angle detection device's detection signal real-time control.

Preferably, the sunlight can enter the glass curtain wall after being diffusely reflected by the surface of the sunshade transverse plate material at a proper angle by rotating each sunshade rotating plate, or the sunlight is blocked from entering the glass curtain wall.

Preferably, the plurality of sunshade rotating plates can form a complete sunshade structure which is inclined along the top of the glass curtain wall on the outer side of the glass curtain wall so as to prevent sunlight from entering the glass curtain wall.

Preferably, the sunshade runner is rotatably mounted at the other end of the sunshade transverse plate through a rotating shaft, the rotating shaft is connected with a motor, and the controller controls the rotating angle of each sunshade runner through the motor.

Preferably, no gap is left between the sunshade transverse plate arranged at the uppermost end of the glass curtain wall and the building structure layer.

Preferably, a gap is reserved between the sunshade transverse plate arranged at the uppermost end of the glass curtain wall and the building structure layer.

Preferably, the distance between the sunshade transverse plate arranged at the lowermost end of the glass curtain wall and the floor surface of the floor where the glass curtain wall is arranged is more than 2.8 m.

Preferably, the plurality of layers of sunshade transverse plates are arranged at equal intervals, and the angles between the sunshade rotating plates and the upper surfaces of the sunshade transverse plates perpendicular to the sunshade transverse plates are the same.

Preferably, the rotation angle between the sunshade runner and the vertical to the upper surface of the sunshade cross panel ranges from 60 to 80.

Preferably, the number of layers of the sunshade transverse plate is 2-5.

The utility model has the advantages that:

1. the utility model discloses in can be real-time and automatic adjust the turned angle of sunshade commentaries on classics board according to the sun illumination angle to the light inlet amount of control light reaches energy-conservation and adjusts the effect of indoor luminous environment.

2. Set up multilayer sunshade diaphragm, the surperficial diffuse reflection of light accessible sunshade diaphragm material, it gets into indoor to turn into the scattered light with partial direct light, it can be lower to get into indoor produced heat with the direct light with the scattered light form indoor, illumination intensity can be lower, consequently give people indoor the luminous environment effect that forms totally different, and sunshade rotor plate rotation angle is different, the light inlet volume that gets into indoor and the light inlet volume that directly penetrates into indoor after at first through diffuse reflection will be different, secondly, the angle when carrying out diffuse reflection is different, the indoor angle of the entering of scattered light will also be different, the indoor position that finally shines also can be different, the energy-conserving effect that consequently reaches and luminous environment state also will be different, can be through the turned angle who adjusts sunshade rotor plate, adjust energy-conserving effect and indoor light environment.

3. The number of layers of the sunshade transverse plate is different, the light entering quantity of the indoor light entering through diffuse reflection is different, the energy-saving effect and the light environment state finally achieved are different, and the energy-saving effect and the indoor light environment can be adjusted by adjusting the number of layers of the sunshade transverse plate.

4. The sunshade rotor plate sets up to the formula of turning up, and the sunshade rotor plate can only rotate in sunshade diaphragm upper end promptly, for the formula of turning down of sunshade rotor plate, the setting of the formula of turning up can be better make light get into indoorly through diffuse reflection, and the formula of turning up sets up to adjusting energy-conserving effect and indoor light environment promptly and establishes the basis.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of a multi-layer retractable sunshade system;

FIG. 2 is a schematic structural view of the sunshade device installed outside the glass curtain wall;

FIG. 3 is a schematic structural view of the 4-layer sunshade transverse plate, with no gap left between the structural layer and the structural layer, and with an angle of 52.5 degrees;

FIG. 4 is a schematic structural view of 4 layers of sunshade transverse plates, no gap is left between the sunshade transverse plates and the structural layer, and the angle is 0 degree;

FIG. 5 is a schematic structural view of the 4-layer sunshade transverse plate, with no gap left between the structural layer and the structural layer, at an angle of-76 degrees;

FIG. 6 is a schematic structural view of the 4-layer sunshade transverse plate with a gap left between the structural layer and the structural layer at an angle of 52.5 degrees;

FIG. 7 is a schematic structural view of 4 layers of sunshade transverse boards with a gap left between the sunshade transverse boards and the structural layer and an angle of 0 degree;

FIG. 8 is a schematic structural view of the 4-layer sunshade transverse plate with a gap left between the structural layer and the structural layer at an angle of-76 degrees;

FIG. 9 is a scatter diagram of the average indoor illuminance under 12 working conditions with gaps;

FIG. 10 is a scatter diagram of average indoor inner side illuminance under 12 working conditions with gaps;

FIG. 11 is a partial room difference scatter diagram of indoor inner side illuminance under 12 working conditions with gaps;

FIG. 12 is a plot of the indoor average illuminance for 12 operating conditions with and without gaps;

FIG. 13 is a scatter diagram of the average indoor illuminance for 12 working conditions with and without gaps;

FIG. 14 is a scattering diagram of indoor inner side partial room difference of 12 working conditions with and without gaps;

FIG. 15 is a plot of glare index for 12 working conditions with gaps left during angular changes of the sunshade rotation panel;

FIG. 16 is a glare index scattering diagram of the sunshade transverse plate with a number of layers changed under 12 working conditions with gaps left;

FIG. 17 is a graph of annual unit area energy dissipation plots for 12 working conditions with gaps left during the angle change of a sunshade rotation plate;

FIG. 18 is a graph of an annual unit area energy dissipation plot when the number of layers of the sun-shading transverse plates changes in 12 working conditions with gaps left;

FIG. 19 is a comprehensive score chart of 12 kinds of angle changes of the sunshade rotary plate under the working condition of keeping gaps in normalization processing;

FIG. 20 is a comprehensive scoring chart of 12 kinds of working conditions of gap left during normalization processing when the number of layers of the sunshade transverse plate changes;

FIG. 21 is a flow chart of a multi-layer retraction type sunshade control method;

the codes in the figure are respectively: 1-sunshade transverse plate; 2-a sunshade rotating plate; 3-glass curtain wall; 4-building a building structure layer; 5-solar angle detection means; 6-a controller; 7-a motor; 8-a rotating shaft; h-the distance from the sunshade transverse plate arranged at the lowermost end of the glass curtain wall to the floor where the glass curtain wall is arranged.

Detailed Description

The invention will be further described with reference to the following examples and the accompanying drawings. The embodiments of the present invention are intended to better enable those skilled in the art to better understand the present invention, and do not limit the present invention.

The first embodiment is as follows:

referring to fig. 1 and 2, the embodiment provides a multilayer retreating type sunshade system, which comprises a building glass curtain wall 3, a sunshade device and a controller 6, wherein the sunshade device is installed at the outer side of the glass curtain wall 3 and comprises a plurality of layers of sunshade transverse plates 1 horizontally arranged, one end of each layer of sunshade transverse plate 1 is fixedly arranged on the glass curtain wall 3, the other end of each layer of sunshade transverse plate 1 is rotatably provided with a sunshade rotating plate 2, the range of the rotation angle between the sunshade rotating plate 2 and the upper surface perpendicular to the sunshade transverse plates 1 is 60-80 degrees, a solar angle detection device 5 is installed at the outer side of the glass curtain wall 3, and the controller 6 controls the rotation angle of each sunshade rotating plate 2 in real time according to the detection signal of the solar angle detection device 5.

The sunlight can enter the glass curtain wall 3 after being subjected to diffuse reflection on the surface of the sunshade transverse plate 1 material at a proper angle by rotating each sunshade rotating plate 2, or the sunlight is prevented from entering the glass curtain wall 3.

The sunshade rotating plate 2 is rotatably arranged at the other end of the sunshade transverse plate 1 through a rotating shaft 8, the rotating shaft 8 is connected with a motor 7, and the controller 6 controls the rotating angle of each sunshade rotating plate 2 through the motor 7.

When the plurality of sunshade rotary plates 2 form a sunshade structure with one complete surface inclined along the top of the glass curtain wall 3 outside the glass curtain wall 3, the effect of blocking sunlight from entering the glass curtain wall 3 is the best. Under other working conditions, the sunlight enters the glass curtain wall 3 after being subjected to diffuse reflection on the surface of the sunshade transverse plate 1 material at a proper angle, and part of direct light is converted into scattered light to enter the room.

The view field condition in the range of 2.8 meters or less greatly affects the work efficiency of the person according to the height and the view field range of the person, so the sunshade device is arranged above 2.8 meters, preferably 2.8m-3.5m away from the ground in the embodiment.

In this embodiment, the plurality of layers of the sunshade transverse plates 1 are arranged at equal intervals, and the angle between each sunshade rotating plate 2 and the upper surface perpendicular to the sunshade transverse plates 1 is the same. When the equal distance distribution and the same angle are adopted, the light entering the room through diffuse reflection is more regular, and the indoor illumination uniformity is higher. And the surface material of the sunshade transverse plate 1 should be a material with high reflectivity, such as galvanized plate, because diffuse reflection is required.

This embodiment multilayer formula solar protection system that moves back is under the prerequisite that the minimum blocked the field of vision, not only can be in real time and automatically adjust multilayer sunshade rotor 2's turned angle according to the sun irradiation angle, thereby reach required sunshade effect with the light inlet amount of control light, and sunshade rotor 2's turned angle is different or sunshade diaphragm 1's the installation number of piles is different, at first can change light and get into indoor light inlet amount with direct light form or scattered light form, secondly can also change the final indoor position of shining of scattered light, consequently the turned angle of accessible regulation sunshade rotor 2 or the installation number of piles of sunshade diaphragm 1, in order to reach energy-conserving effect and indoor light environment comfort's balance.

Example two:

this embodiment uses the Shenzhen region as an example, explains in detail the utility model discloses solar protection system's solar protection effect.

The multilayer retreating type sun-shading system in the first embodiment is applied to the outside of a certain building glass curtain wall 3 in the Shenzhen region, and an outer facade at a position of 2.8-3.5 m is selected as a laying layer of the sun-shading device. The maximum projecting size of the sun-shading device is ensured: noon in spring, summer and autumn 12:00 no sunlight directly enters a region with the spatial depth exceeding 1 m; the maximum outward rotation angle of the sunshade rotary plate 2 is ensured: in this state, the sun of Shenzhen autumn festival 12:00 can just be reflected to the edge of the upper sunshade transverse plate 1 via the edge of the lower sunshade rotating plate 2, and the maximum inward rotation angle of the sunshade rotating plate 2 ensures: in this state, no light is diffused and reflected by the surface of the sunshade transverse plate 1 and enters the room.

In order to search for the best setting mode of the sun shading device, 18 working conditions (referring to fig. 3-8, 6 working conditions in the case of installing 4 layers of sun shading transverse plates 1 are shown in 6 figures, and the rest 12 working conditions are not shown) are set according to the number of layers of the sun shading transverse plates 1, the position relation (with gaps or without gaps) between the sun shading transverse plates 1 and the building structure layer 4, the rotation angle of the sun shading rotating plate 2 and three geometric parameters, and specific parameters of the 18 working conditions are shown in table 1.

TABLE 1 sunshade specific parameters

In order to compare the shading performance of the sun shading device, three angles of indoor illumination, glare index and uniformity are used for analysis and comparison, and 20%, 10% and 20% of the indoor illumination, the glare index and the uniformity are respectively weighted.

Firstly, under typical working conditions (the rotation angle of the installation of 2 layers of sunshade transverse plates 1 and the sunshade rotary plates 2 is-76 degrees, and a gap is reserved between the installation of the sunshade transverse plates and the structural layer 4), the simulation calculation is carried out on the sunshade system by using Radiance and EnergyPlus, so that the discomfort illumination of the system can be reduced by 300-600%, and the unit area energy consumption of the whole year can be reduced by about 36% (the whole year). On this basis, in order to better explain the effect of the sun-shading system on energy conservation and indoor light environment comfort regulation, the following analysis is carried out:

1. single day illumination analysis:

the 12 working conditions with gaps left are subjected to simulation analysis to obtain the single-day illumination conditions of the working conditions, and a scatter diagram is drawn by using the specific data of the single-day illumination conditions and taking the number of layers of the sunshade transverse plate 1 and the rotation angle of the sunshade rotating plate 2 as independent variables and the indoor average illumination, the indoor inner side average illumination and the indoor inner side illumination variance as dependent variables, as shown in fig. 9-11. The results show that: as the sunshade horizontal plate 1 is changed from 5 layers to 2 layers, the average illumination intensity of the indoor whole is increased, the average illumination intensity of the indoor inner side is increased, and the inner side uniformity is reduced (the variance is increased). Along with the change of the number of layers of the sunshade transverse plate 1, the average illumination and the uniformity change trend are opposite, and the quality is difficult to judge from absolute numerical values, so that the relative change value is adopted for judgment: i.e., from x layers to x ± 1 layers, the dominant terms increase relatively much and the inferior terms increase relatively little. From the viewpoint of reducing the overall illumination, the sunshade transverse plate 1 is changed most obviously from 2 layers to 3 layers; from increasing inside illuminance, the sunshade slat 1 changes least significantly from 4 to 5 layers and less significantly from 3 to 4 layers; from the standpoint of increasing uniformity, the sunshade web 1 changes most significantly from 2 layers to 3 layers, and more significantly from 3 layers to 4 layers. In conclusion: the 3 or 4 layers of the sunshade transverse plates 1 are relatively good choices, the 3 layers of the sunshade transverse plates 1 can effectively reduce the overall illumination, but the illumination of the inner side is not too low, but the uniformity can still be improved; the 4 layers of sunshade transverse plates 1 can effectively reduce the overall illumination, the uniformity is better, but the illumination of the inner side is lower.

Selecting the better conditions of 3 layers of sunshade transverse plates 1 and 4 layers of sunshade transverse plates, adding the working conditions of no gap between the sunshade device and the structural layer 4 for further analysis and comparison, carrying out simulation analysis on 12 working conditions of no gap and no gap between the 3 layers of sunshade transverse plates 1 and 4 layers of sunshade transverse plates 1 and the structural layer 4 to obtain the single-day illumination conditions of the sunshade transverse plates and the structural layer, and drawing a scatter diagram by using the specific data of the single-day illumination conditions, taking the number of layers of the sunshade transverse plates 1 and the rotation angle of the sunshade rotating plate 2 as independent variables, and taking the indoor average illumination, the indoor inner side average illumination and the indoor inner side illumination variance as dependent variables, as shown in figures 12-14. The result shows that when the number of layers of the sunshade transverse plate 1 is the same, the illumination intensity of the seams is higher than that of the seams, and meanwhile, the uniformity is lower; when the number of layers of the sunshade transverse plate 1 is changed, the variation of the illumination intensity and the illumination intensity uniformity of the seamless group is larger than that of the seamless group.

2. Glare analysis:

firstly, carrying out simulation analysis on the condition that a gap is reserved between the sunshade transverse plate 1 and the structural layer 4 to obtain 12 glaring conditions of ten am in winter solstice days under the working condition of reserving the gap; and drawing a scatter diagram by using the specific data of the glare condition and taking the number of layers of the sunshade transverse plate 1, the rotation angle of the sunshade rotating plate 2 as independent variables and the glare index as a dependent variable, as shown in fig. 15-16. The results show that: after the sun-shading device is arranged, the indoor glare condition is basically improved greatly. The influence of the change of the number of layers of the sunshade transverse plate 1 on the glare index is small, and the fluctuation trend is presented. The influence of the rotation angle of the sun-shading rotating plate 2 on the glare index is large, and when the rotation angle of the sun-shading rotating plate 2 is changed from-76 degrees, 0 degrees and 52.5 degrees in sequence, the glare index shows the trend of increasing after decreasing. This result indicates that, in a state where the rotation angle of the sunshade rotary 2 is 0 °, the ability to reflect light is strong, and thus the ability to improve the glare condition is stronger than that in the case of 52.5 ° or-76 °. When the number of layers of the sunshade transverse plate 1 is 2-4 and the rotation angle of the sunshade rotating plate 2 is-76 degrees, the sunshade device has no optimization effect on the glare condition; however, when the number of the layers of the sunshade transverse plate 1 is 5, the glare condition can be obviously optimized at all angles. In conclusion: the number of layers of the sunshade transverse plate 1 is 5, and when the rotation angle of the sunshade rotating plate 2 is 0 degree, the improvement effect on the indoor glare condition is strongest.

3. Energy consumption analysis:

and performing simulation analysis on 12 working conditions with gaps to obtain energy consumption conditions of the working conditions, and drawing a scatter diagram by using the specific conditions of the energy consumption conditions, and taking energy consumption EUI of a unit area of the whole year as a dependent variable, and taking the number of layers of the transverse sunshade plates 1 and the rotation angle of the rotary sunshade plate 2 as independent variables respectively, as shown in FIGS. 17-18. The results show that: the number of layers of the sunshade transverse plate 1 has a remarkable influence on the energy consumption per unit area of the whole year, and when the number of layers of the sunshade transverse plate 1 is 5, the energy consumption per unit area of the whole year is the lowest; when the number of the layers of the sunshade transverse plate 1 is 4, the energy consumption of the whole year unit area of the building is reduced to a lower level.

The rotation angle of the sunshade rotating plate 2 also has a certain influence on the unit area energy consumption of the whole year, and since Shenzhen is in the regions of summer heat and winter warm, the sunshade is very important for reducing the energy consumption of buildings. Therefore, when the sunshade rotary plate 2 is opened outwards, namely the rotation angle of the sunshade rotary plate 2 is minus 76 degrees, the length of the sunshade device is longest, direct sunlight can be blocked to the greatest extent, and the energy consumption of the annual unit area is also lowest. In addition, the more the number of layers of the sunshade transverse plate 1 is, the influence of the rotation angle of the sunshade rotating plate 2 on the unit area energy consumption of the whole year is in a descending trend.

In order to comprehensively consider the performance of the sun-shading device on the luminous environment and the building energy consumption for selection, 12 annual unit area energy consumptions with gap working conditions are normalized, and the results are shown in table 2.

TABLE 2 annual unit energy consumption chart with 12 times of simulation by normalization processing

Finally, the energy consumption per unit area, glare value, illuminance variance (description uniformity) all year around are normalized, and the total score is calculated according to the weight of each item, and the result is shown in table 3. The total score in Table 3 was used as a dependent variable, and the number of layers of the sunshade horizontal plate 1 and the rotation angle of the sunshade rotary plate 2 were used as independent variables, and scattergrams were plotted, and the results were shown in FIGS. 19 to 20. The result shows that the score of the 5 layers of sunshade transverse plates 1 is the highest, and the score is the highest when the rotation angle of the sunshade rotating plate 2 is 0 degrees.

TABLE 3 comprehensive score Table for normalization processing of 12 simulations

Note: energy consumption normalization per unit area throughout the year (A); normalization of glare values (B); luminance normalization (C); luminance variance (describing uniformity) normalization (D); the total score was-0.5A-0.1B + 0.2C-0.2D.

In conclusion:

from the viewpoint of ensuring the illuminance of the indoor side: the number of layers of the sunshade transverse plate 1 is 2, and the illumination of the indoor inner side is the highest when the rotation angle of the sunshade rotating plate 2 is 0 degree; the number of layers of the sunshade transverse plate 1 is 5, and the illumination of the indoor inner side is the lowest when the rotation angle of the sunshade rotating plate 2 is 52.5 degrees.

From the perspective of improving the uniformity of indoor illuminance: the number of layers of the sunshade transverse plate 1 is 5, and the indoor inner side illumination uniformity is highest (the illumination variance is minimum) when the rotation angle of the sunshade rotating plate 2 is 52.5 degrees; the number of layers of the sunshade transverse plate 1 is 2, and the indoor inner side illumination uniformity (the illumination variance is maximum) is the lowest when the rotation angle of the sunshade rotating plate 2 is 0 degree.

From the perspective of reducing the indoor glare index: the glare index DGI of the sun-shading rotating plate 2 is larger when the rotating angle is minus 76 degrees; as long as the rotation angle of the sunshade rotary plate 2 is not-76 degrees, the influence of the layer number of the sunshade transverse plate 1 on the glare index DGI is very small;

from the perspective of reducing building energy consumption: the number of layers of the sunshade transverse plate 1 is 5, and the energy consumption per unit area of the whole year is lowest when the rotation angle of the sunshade rotating plate 2 is minus 76 degrees; the number of layers of the sunshade transverse plate 1 is 2, and the energy consumption per unit area of the whole year is highest when the rotation angle of the sunshade rotating plate 2 is 52.5 degrees.

Example three:

referring to fig. 21, the present embodiment discloses a multilayer retreating sunshade control method, including the steps of:

s1, detecting the irradiation angle of the sun in real time by the sun angle detection device 5, and transmitting the detected irradiation angle signal to the controller 6;

s2, the controller 6 controls the rotation angle of each sunshade rotation panel 2 based on the irradiation angle signal detected by the sun angle detection device 5.

The above-mentioned embodiments are only described for the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the technical solution of the present invention is not limited by the above-mentioned embodiments, and various modifications and improvements made by those skilled in the art can be made without departing from the spirit of the present invention.

Claims (10)

1. The utility model provides a multilayer formula solar shading system that advances that moves back, its characterized in that includes building glass curtain wall, solar shading device and controller, and solar shading device installs in the glass curtain wall outside, and solar shading device includes the sunshade diaphragm that the multilayer level was laid, and the one end of every layer of sunshade diaphragm all sets firmly in glass curtain wall, and the other end all rotates and installs the sunshade commentaries on classics board, and solar angle detection device is installed to the glass curtain wall outside, and the controller is according to every solar angle detection device's detected signal real-time control rotation angle of sunshade commentaries on classics board.

2. The multi-layer retractable sunshade system of claim 1, wherein each of said sunshade panels is rotated to allow sunlight to enter said glass curtain wall after being diffusely reflected at a desired angle by said surface of said sunshade cross panel material, or to block sunlight from entering said glass curtain wall.

3. The multiple-story retractable sunshade system of claim 2, wherein the plurality of sunshade panels are adapted to form a complete sunshade structure on the outside of the glass curtain wall, the sunshade structure being inclined along the top of the glass curtain wall to block sunlight from entering the glass curtain wall.

4. The multi-deck retractable sunshade system of claim 1, wherein said sunshade rotary plate is rotatably mounted to the other end of said sunshade transverse plate by a rotary shaft, said rotary shaft being connected to a motor, said controller controlling the rotation angle of each sunshade rotary plate by said motor.

5. The multiple-story retractable sunshade system of claim 1, wherein no gap is left between the sunshade cross-slab mounted at the uppermost end of the glass curtain wall and the building structure.

6. The multiple-story retractable sunshade system of claim 1, wherein a gap is provided between the sunshade cross-slab mounted at the uppermost end of the glass curtain wall and the building structure.

7. The multiple-story retractable sunshade system of claim 1, wherein the distance between the sunshade cross-slab installed at the lowermost end of the glass curtain wall and the floor surface of the storey where the glass curtain wall is located is greater than 2.8 m.

8. The system of claim 1 wherein the plurality of sunshade slats are equally spaced and the angle between the sunshade runner and the vertical plane of the sunshade slats is the same.

9. The multiple layer retractable sunshade system of claim 1 wherein said rotation angle of said sunshade runner to a plane perpendicular to said top surface of said sunshade cross panel is in the range of 60 ° -80 °.

10. The multiple layer retractable sunshade system of claim 1 wherein said number of layers of said sunshade cross panel is between 2 and 5.

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