Multifunctional curtain wall component system

Abstract

The utility model discloses a multifunctional curtain wall component system which aims at integrating multiple functions of sun shading, natural ventilation, solar power generation, night scene illumination and the like so as to meet the high-standard requirements of modern green buildings for energy conservation, emission reduction, environment friendliness and user comfort. The system comprises a curtain wall component arranged on a building structure, and a power generation unit and a sunshade unit which are connected with the curtain wall component, and a ventilation unit is further arranged in the sunshade unit. Wherein the sun-shading unit comprises an aluminum alloy sun-shading component, a flow guide component and an aluminum alloy ventilation shutter; the power generation unit is composed of a photovoltaic frame, an outer side curtain wall (solar photovoltaic component) and a photovoltaic junction box. The ventilation unit is composed of a ventilation channel, a ventilation opening fan and a filter screen, and the channel is connected with an aluminum alloy ventilation shutter and provided with a night scene lighting lamp strip. The night scene lighting lamp strip is connected with the power generation unit, and energy self-sufficiency is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of building curtain wall systems and relates to a multi-functional curtain wall component system. Background Art

[0002] The concepts of green buildings, nearly zero energy consumption buildings, and nearly zero carbon buildings have gradually gained popularity and become the mainstream development trend in the contemporary construction industry. These buildings not only pursue efficient energy utilization but also emphasize harmonious coexistence with the natural environment, aiming to reduce dependence on traditional energy sources, lower carbon emissions, and improve the health and comfort of living and working environments. To this end, a series of standards and specifications have been introduced, such as the "General Code for Building Energy Efficiency and Renewable Energy Utilization" GB 55015-2021, the "Green Building Evaluation Standard" GB / T 50378-2019, and the "Technical Standard for Nearly Zero Energy Consumption Buildings" GB / T 51350-2019. These standards put forward clear and strict requirements for the application of natural ventilation, shading systems, and solar energy systems.

[0003] As the "skin" of modern buildings, building curtain walls not only play a role in protecting the indoor environment from external adverse weather conditions but are also key factors in demonstrating building aesthetics and improving building energy efficiency. Currently, various types of curtain wall systems have emerged in the market. For example, curtain walls that use hollow louvers to achieve shading functions and curtain walls that use photovoltaic glass to achieve self-power generation capabilities. However, most of these designs are limited to the realization of single or a few functions and lack comprehensive consideration and integrated application of multiple demands such as shading, natural ventilation, solar power generation, and night lighting.

[0004] Traditional curtain wall designs often focus on aesthetics or single functional performance requirements and are difficult to fully respond to the comprehensive requirements of green and low-carbon buildings, especially in terms of the integration of natural ventilation, shading systems, and solar energy systems. Therefore, there is an urgent need to develop a new multi-functional curtain wall component system that can break through the limitations of traditional curtain walls and achieve a high degree of integration of multiple functions to meet the high standards of modern green buildings for energy conservation, environmental friendliness, and user comfort. Content of the Utility Model

[0005] In view of this, the purpose of the utility model is to provide a multi-functional curtain wall component system to achieve efficient integration of multiple functions such as shading, natural ventilation, solar power generation, and night lighting to meet the sustainable development needs of green and low-carbon buildings.

[0006] To achieve the above object, the present utility model provides the following technical solution: a multi-functional curtain wall component system, including a curtain wall component disposed on a building structure, as well as a power generation unit and a sunshade unit connected to the curtain wall component and disposed outdoors of the building. A ventilation unit communicating with the interior of the building is further disposed between the sunshade unit and the curtain wall component. The sunshade unit is connected to the curtain wall component through a connecting member and a connecting base.

[0007] Optionally, the sunshade unit includes an aluminum alloy sunshade member cooperatively installed with the connecting base. Aluminum alloy diversion members facing the ventilation unit are disposed on both inward sides of the aluminum alloy sunshade member. Aluminum alloy ventilation louvers are further disposed at the connection between the aluminum alloy sunshade member and the aluminum alloy diversion members.

[0008] Optionally, the power generation unit includes a photovoltaic frame connected to the end of a wind guiding structure, an outer curtain wall disposed within the photovoltaic frame, and a photovoltaic junction box disposed on the indoor side of the outer curtain wall. The outer curtain wall is a crystalline silicon-based, compound, or thin-film solar photovoltaic component.

[0009] Optionally, the ventilation unit includes a ventilation passage between the curtain wall component and a ventilation opening fan disposed at the indoor end position of the ventilation passage. The ventilation passage communicates with the aluminum alloy ventilation louvers.

[0010] Optionally, a filter screen is detachably disposed at a position of the ventilation passage close to the ventilation opening fan.

[0011] Optionally, a night scene lighting strip is vertically disposed on the curtain wall component at a position where the ventilation passage communicates with the aluminum alloy ventilation louvers.

[0012] Optionally, the night scene lighting strip is connected to the power generation unit.

[0013] The beneficial effects of the present utility model are as follows: The multi-functional curtain wall component system of the present utility model realizes the efficient integration of multiple functions such as sunshading, natural ventilation, solar power generation, and night scene lighting. It not only improves the building's energy self-sufficiency ability, but also optimizes the indoor air quality, enhances the building's aesthetics and night recognition, and provides a more comfortable and healthy living or working environment for users.

[0014] Other advantages, objectives, and features of the present utility model will be described to some extent in the subsequent specification, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present utility model. The objectives and other advantages of the present utility model can be realized and obtained through the following specification. Description of the Drawings

[0015] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be described in detail and preferably below in conjunction with the accompanying drawings, where:

[0016] Figure 1 is the elevation cross-sectional view of the present utility model;

[0017] Figure 2 is Figure 1 the partial enlarged view of

[0018] Figure 3 is the overall structural schematic diagram of the present utility model;

[0019] Figure 4 is the design flow chart of the present utility model;

[0020] Figure 5 is the schematic diagram of the aluminum alloy diversion component profile of the present utility model;

[0021] Figure 6 is the schematic diagram of the aluminum alloy ventilation louver profile of the present utility model;

[0022] Figure 7 is the schematic diagram of the connecting component profile of the present utility model;

[0023] Figure 8 is the schematic diagram of the connecting base profile of the present utility model;

[0024] Figure 9 is the schematic diagram of the photovoltaic frame profile of the present utility model;

[0025] Figure 10 is the schematic diagram of the filter screen of the present utility model;

[0026] Figure 11 is the schematic diagram of the aluminum alloy sunshade component profile of the present utility model;

[0027] Figure 12 is the schematic diagram of the outdoor lighting component profile of the present utility model;

[0028] Figure 13 is the schematic diagram of the night lighting light strip of the present utility model.

[0029] Reference numerals: photovoltaic component 1, photovoltaic frame 2, photovoltaic junction box 3, aluminum alloy sunshade component 4, connecting base 5, aluminum alloy diversion component 6, aluminum alloy ventilation louver 7, connecting component 8, ventilation opening fan 9, curtain wall component 10, night lighting light strip 11, filter screen 12;

[0030] A - width dimension (overhanging dimension) of the sunshade panel, B - spacing of the sunshade panels, S11 - effective ventilation area on the left side outdoors, S12 - effective ventilation area on the right side outdoors, S2 - effective ventilation area on the indoor side. Detailed implementation manners

[0031] The following uses specific specific examples to illustrate the implementation manners of the present utility model. Those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. The present utility model can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present utility model. It should be noted that the diagrams provided in the following embodiments only illustrate the basic concept of the present utility model in a schematic manner. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0032] Among them, the attached drawings are only for illustrative purposes, showing only schematic diagrams, not physical diagrams, and cannot be understood as a limitation to the present utility model; in order to better illustrate the embodiments of the present utility model, some components in the attached drawings will be omitted, enlarged or reduced, which does not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the attached drawings may be omitted.

[0033] In the attached drawings of the embodiments of the present utility model, the same or similar reference numerals correspond to the same or similar components; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the attached drawings are only for illustrative purposes and cannot be understood as a limitation to the present utility model. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0034] Please refer to Figures 1 to 13, is a multi-functional curtain wall component system, including a curtain wall component 10 arranged on a building structure, and a power generation unit and a sunshade unit connected to the curtain wall component 10 and arranged outdoors of the building. A ventilation unit communicating with the interior of the building is also arranged inside the curtain wall component 10 and the sunshade unit. The sunshade unit is connected to the curtain wall component 10 through a connecting member 8 and a connecting base 5. The sunshade unit includes an aluminum alloy sunshade member 4 cooperatively installed with the connecting base 5. On both sides of the aluminum alloy sunshade member 4 facing inward, there are aluminum alloy flow guiding members 6 facing the ventilation unit. An aluminum alloy ventilation louver 7 is also arranged at the connection between the aluminum alloy sunshade member 4 and the aluminum alloy flow guiding member 6. The power generation unit includes a photovoltaic frame 2 connected to the end of the air guiding structure, an outer curtain wall arranged inside the photovoltaic frame 2, and a photovoltaic junction box 3 arranged on the indoor side of the outer curtain wall. The outer curtain wall is a crystalline silicon type, compound type, or thin film type solar photovoltaic component 1. The ventilation unit includes a ventilation channel between the curtain wall component 10 and a ventilation opening fan 9 arranged at the indoor end position. The ventilation channel is connected to the aluminum alloy ventilation louver 7. A filter screen 12 is detachably arranged at a position of the ventilation channel close to the ventilation opening fan 9. An outdoor lighting member is arranged vertically on the curtain wall component 10 at the position where the ventilation channel is connected to the aluminum alloy ventilation louver 7. A night scene lighting light strip 11 is arranged inside the outdoor lighting member to achieve the landscape lighting effect. At the same time, the vertical illuminance generated on the outer surface of the functional space window should meet the design requirements and no light pollution should be generated. The night scene lighting light strip 11 is connected to the power generation unit.

[0035] In this embodiment, the solar photovoltaic panels on the outer side of the curtain wall component 10 adopt crystalline silicon type and thin film type solar photovoltaic components 1, preferably a thin film type photovoltaic power generation curtain wall system; the minimum conversion efficiency of each type of solar cell panel should not be lower than its minimum requirement. At the same time, considering the consistency of the overall building facade design style and effect, the visible light reflectance of the photovoltaic curtain wall should be reasonably controlled not to exceed 0.2.

[0036] The design method adapted to the present utility model is as follows:

[0037] S1. According to the actual situation, comprehensively considering the building sunshade and daylighting requirements, indoor air quality requirements, solar radiation conditions in the climate zone to which it belongs, and landscape design requirements, determine the position for arranging the curtain wall component 10;

[0038] S2. The ventilation module determines the effective ventilation area on both sides of the air duct by the opening rate of the aluminum alloy ventilation louver 7 and the opening method and openable angle of the indoor ventilation opening fan 9, combined with the site wind environment and the air thermal pressure difference in the ventilation cavity. Through the total effective ventilation area S11 + S12 on the outdoor side and the ventilation effective area S2 on the indoor side, determine the effective ventilation area S of this part of the component. And comprehensively consider factors such as the coordinated influence of the overhanging dimension A of the sunshade component to determine the preliminary design dimensions;

[0039] S3. The shading module calculates its dimensional ratio based on the climate zone to which the target building belongs, the orientation of the building facade, and the shading coefficients specified in relevant engineering construction standards. At the same time, it comprehensively evaluates in combination with the design effect of the exterior facade to determine the width dimension A of the shading module and the layout spacing B of the sunshade panels.

[0040] S4. The photovoltaic module determines the measurement of building photovoltaic power generation and the design effect of the building curtain wall system based on the analysis of building solar radiation intensity and the application scenarios of photovoltaic power generation, and determines the preliminary design dimension L of its power generation module in combination with the economic calculation of photovoltaic investment.

[0041] S5. Further taking into account the actual functional application, comprehensively considering the strip light design for the photovoltaic system to supply night lighting, the installation of a detachable filter screen 12 on the ventilation opening fan 9, etc., to determine the final design effect.

[0042] In this embodiment, in the calculation of the further described shading module, the external shading coefficient shall be calculated and determined according to the following formula

[0043] SD = ax 2 + bx + 1;

[0044] x = A / B;

[0045] In the formula, SD - external shading coefficient;

[0046] x - external shading characteristic value, when x ≥ 1, take x = 1;

[0047] a, b - fitting coefficients;

[0048] A, B - qualitative dimensional sizes of the external shading structure, A is the width dimension (overhanging dimension) of the sunshade panel, and B is the spacing between the sunshade panels;

[0049] In this embodiment, the value of the shading coefficient SD can be comprehensively determined in combination with the relevant standard requirements of the current national "General Code for Building Energy Efficiency and Renewable Energy Utilization" GB 55015, "Design Standard for Energy Efficiency of Public Buildings" GB50189, etc., and in combination with the climate zone to which the project belongs, the facade orientation, and the design requirements of the architect. For example, the "Technical Standard for Nearly Zero Energy Consumption Buildings" DBJ50 / T - 451 - 2023 requires that the shading coefficient of the external windows facing east, south, and west is not greater than 0.85.

[0050] In this embodiment, the fitting coefficients of a and b can be determined according to the following table:

[0051]

[0052] In this embodiment, the proportional relationship of the qualitative dimensional sizes of the external shading of A and B is determined according to the following formula:

[0053]

[0054] Preliminarily determine the structural qualitative dimensions of the external sunshade based on the proportional relationship between A and B and the building facade effect;

[0055] In this embodiment, the predicted power generation of the solar photovoltaic power generation system can be calculated according to the following formula:

[0056]

[0057] In the formula, E p —— Power generation (kWh);

[0058] H A —— Total solar radiation on the horizontal plane (kW·h / m 2 , peak hour number);

[0059] P Az —— Installation capacity of photovoltaic modules (kWp);

[0060] E s —— Irradiance under standard conditions (constant = 1kW·h / m 2 );

[0061] K - Comprehensive efficiency coefficient; when the photovoltaic array is installed at the optimal inclination angle, it can generally take 0.75 - 0.85;

[0062] Among them, the comprehensive efficiency coefficient K = K1 × K2 × K3 × K4 × K5 × K6 × K7 × K8;

[0063] Specifically include: inclination angle and azimuth correction coefficient K1 of the photovoltaic array, attenuation correction coefficient K2 of the photovoltaic module, temperature correction coefficient K3 of the photovoltaic module, surface pollution and occlusion correction coefficient K4 of the photovoltaic module, photovoltaic string adaptation coefficient K5, availability of the photovoltaic system K6, average efficiency K7 of the inverter, and collector line loss coefficient K8;

[0064] The installation area and design size L of the solar photovoltaic panel should be determined in combination with the building's power generation demand and economic calculation.

[0065] In this embodiment, for the design of the ventilation unit, according to relevant research, to meet the indoor natural ventilation and air change rate of 2 times per hour, the effective ventilation area can be estimated according to 4% of the floor axis area of the room. Therefore, the effective ventilation area is determined according to 4% of the floor axis area of the room. The effective ventilation area on the left side outdoors is S11, the effective ventilation area on the right side outdoors is S12, the total effective ventilation area on the outdoor side is S11 + S12, the effective ventilation area on the indoor side is S2, and the effective ventilation area S of the multi-functional curtain wall component is the minimum of the effective ventilation areas on the outdoor side and the indoor side, that is, S = Min(S11 + S12, S2).

[0066] In this embodiment, when the building photovoltaic power generation component device shades the solar photovoltaic panel with the sunshade aluminum plate frame, the natural ventilation cavity is ventilated mainly by the ventilation wind pressure. The influence of the wind pressure should be considered emphatically for the ventilation efficiency. The wind pressure calculation for the wind pressure ventilation is as follows:

[0067] Calculation formula for wind pressure:

[0068] In the formula, p — wind pressure; ν — wind speed; ρ e — outdoor air density; g — acceleration of gravity; K — aerodynamic coefficient;

[0069] In this embodiment, when the solar photovoltaic panel of the building photovoltaic power generation component device can replace the sunshade aluminum plate (upper part) and be directly installed, the natural ventilation cavity is ventilated mainly by the ventilation wind pressure and the thermal pressure, and the air flow is realized by the thermal pressure difference of the air inside the building. The density of hot air is small and it rises due to the buoyancy effect, thus driving the air convection inside the building. The influence of both should be considered emphatically for the ventilation efficiency. The pressure calculation is as follows:

[0070]

[0071] In the formula, h — height difference between the center lines of the inlet and outlet; ρi — indoor air density; ρ e — outdoor air density; ν — wind speed; ρ e — outdoor air density; g — acceleration of gravity; K — aerodynamic coefficient.

[0072] In this embodiment, the present utility model will achieve the functional effects that the shading coefficient is not greater than 0.85 and the natural ventilation air change rate is not less than 2 times per hour.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model can be modified or equivalently replaced without departing from the purpose and scope of the present technical solution, and they should all be covered within the scope of the claims of the present utility model.

Claims

1. A multifunctional curtain wall component system, characterized in that: It includes a curtain wall component arranged on a building structure, and a power generation unit and a sunshade unit connected to the curtain wall component and arranged outside the building. A ventilation unit connected to the interior of the building is also arranged inside the sunshade unit and the curtain wall component. The sunshade unit is connected to the curtain wall component through a connecting component and a connecting base.

2. A multifunctional curtain wall component system according to claim 1, characterized in that: The sunshade unit comprises an aluminum alloy sunshade component mounted in cooperation with a connecting base, the aluminum alloy sunshade component is provided with aluminum alloy flow guide components facing the ventilation unit on both sides thereof, and aluminum alloy ventilation louvers are also provided at the connection between the aluminum alloy sunshade component and the aluminum alloy flow guide component.

3. A multifunctional curtain wall component system according to claim 2, characterized in that: The power generation unit includes a photovoltaic frame connected to the end of the wind guide structure, an outer curtain wall arranged in the photovoltaic frame, and a photovoltaic junction box arranged on the outer curtain wall facing the indoor side, and the outer curtain wall is a solar photovoltaic component.

4. A multifunctional curtain wall component system according to claim 2, characterized in that: The ventilation unit comprises a ventilation channel between the curtain wall components and a ventilation opening fan arranged at a terminal position between the ventilation channel and the indoor end position; the ventilation channel is communicated with the aluminum alloy ventilation louver.

5. A multifunctional curtain wall component system according to claim 4, characterized in that: The ventilation channel is also provided with a filter screen which can be detachably arranged at a position close to the ventilation opening fan.

6. A multifunctional curtain wall component system according to claim 4, characterized in that: A night scene lighting strip is vertically arranged on the curtain wall component at the connection position between the ventilation duct and the aluminum alloy ventilation louver.

7. A multifunctional curtain wall component system according to claim 6, characterized in that: The night scene lighting lamp belt is connected with the power generation unit.

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