A residential photovoltaic system installed on a window

Abstract

The embodiment of the application provides a kind of installation in window's household photovoltaic system, it is related to photovoltaic power generation technical field, the household photovoltaic system includes: micro inverter and several series photovoltaic components electrically connected with the micro inverter;The mounting assembly is provided on the photovoltaic component, the photovoltaic component is hung or pasted in the inside of window glass by the mounting assembly, and the front surface of the photovoltaic component is close to or adheres to the inside of the window glass.This household photovoltaic system does not need to drill or damage building structure, especially suitable for the scene such as rental housing, high-rise apartment and the like cannot be transformed wall, and installation and removal are flexible and convenient;Equipment is all installed indoors, avoid the influence of bad weather;At the same time, make full use of window vertical surface, break through the space limit of balcony and roof, realize " just paste and use " clean power generation, and its minimalist deployment mode significantly reduces the user threshold.

Description

Technical Field

[0001] This application relates to the field of photovoltaic power generation technology, and more specifically, to a residential photovoltaic system installed in a window. Background Technology

[0002] Taking existing technologies for traditional residential photovoltaic systems as an example: Residential photovoltaic (PV) systems typically consist of monocrystalline / polycrystalline silicon modules, aluminum alloy / steel brackets, and centralized micro-inverters. Their working principle involves fixing the brackets to the roof or balcony through drilled holes, utilizing the photovoltaic effect to convert solar energy into direct current (DC), which is then fed into the grid via the micro-inverter. However, this rigid installation method requires penetrating the roof and damaging the waterproofing layer, leading to potential leaks. It also places a heavy load on older buildings, requiring additional reinforcement at significant costs. Furthermore, flat installations are prone to dust accumulation, causing power generation losses, and obstructions on the module surface can trigger a "hot spot effect" (localized high temperatures that burn out the cells, potentially causing a fire). Installation also occupies considerable space and is susceptible to severe weather conditions, increasing the risk of safety accidents. Summary of the Invention

[0003] The embodiments of this application provide a residential photovoltaic system installed in a window to solve the technical problems existing in the prior art.

[0004] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0005] According to a first aspect of the embodiments of this application, a residential photovoltaic system installed in a window is provided, comprising: a microinverter and a plurality of photovoltaic modules connected in series with the microinverter. The photovoltaic module is equipped with an installation component, which is used to hang or attach the photovoltaic module to the inside of the window glass, with the front of the photovoltaic module close to or attached to the inside of the window glass.

[0006] In some embodiments of this application, based on the foregoing scheme, the installation component includes: nano-adhesive tape; The nano-adhesive tape is placed on the edge of the photovoltaic module and is used to attach the photovoltaic module to the inside of the window glass.

[0007] In some embodiments of this application, based on the foregoing scheme, the installation component includes: a vacuum suction cup hook and a corn eyelet. The eyelet clip is disposed on the edge of the photovoltaic module; The vacuum suction cup hook is attached to the inside of the window glass, and the eyelet is attached to the vacuum suction cup hook.

[0008] In some embodiments of this application, based on the foregoing solution, the vacuum suction cup hook includes: a suction cup body and a hook disposed on the suction cup body; The suction cup body is equipped with a spring locking mechanism for triggering a vacuum. The end of the hook is equipped with a safety snap ring.

[0009] In some embodiments of this application, based on the aforementioned scheme, the tensile strength of the eyelet buckle is >200N.

[0010] In some embodiments of this application, based on the foregoing scheme, the residential photovoltaic system further includes: an AC grid connection point and a power control module; The AC output terminal of the micro inverter is connected to an AC bus via an AC connector, and the AC bus is electrically connected to the AC grid connection point. The power control module is connected to the micro inverter and is used to control the grid-connected output power.

[0011] In some embodiments of this application, based on the foregoing scheme, a module junction box is provided on the back of the photovoltaic module, and the module junction box is electrically connected to the micro inverter.

[0012] In some embodiments of this application, based on the foregoing scheme, an MC4 plug is provided on the connection circuit between the component junction box and the micro inverter.

[0013] Compared to traditional photovoltaic systems, the core advantage of this application's technical solution lies in the spatial versatility and user-friendliness brought by the drill-free installation: it is directly installed on the glass surface using a vacuum suction cup or nano-adhesive tape, without drilling or damaging the building structure, making it particularly suitable for rental housing, high-rise apartments, and other scenarios where wall modifications are not possible, and installation and disassembly are flexible and convenient; all the devices are installed indoors, avoiding the impact of severe weather; at the same time, it makes full use of the vertical surface of windows, breaking through the space limitations of balconies and roofs, and achieving "plug and play" clean power generation, and its minimalist deployment mode significantly reduces the user's threshold for use.

[0014] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0015] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort. In the drawings: Figure 1An installation schematic diagram of a residential photovoltaic system installed in a window according to an embodiment of this application is shown; Figure 2 A schematic diagram of photovoltaic module bonding according to an embodiment of this application is shown; Figure 3 A topology diagram of a residential photovoltaic system installed in a window according to one embodiment of this application is shown.

[0016] Explanation of reference numerals in the attached figures 1-Flexible photovoltaic module, 2-Micro inverter, 3-Power control module, 4-AC grid connection point, 5-Glass clip, 6-Vacuum suction cup hook, 7-Module junction box, 8-MC4 plug, 9-Nano tape. Detailed Implementation

[0017] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0018] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0019] It should be noted that "multiple" in this article refers to two or more. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such uses of these terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described.

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention 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 invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0022] The following detailed description of some embodiments of this application will be provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Existing residential photovoltaic systems have the following problems: (1) Destructive installation: Traditional bolt drilling fixation can cause the roof waterproofing layer to crack, increasing the risk of water leakage. After installation, it is easy to cause cracks in old houses, and in severe cases, it can lead to roof settlement. (2) Easy to cause damage to components: The arrangement of components requires manual avoidance of roof obstacles, the installation of a single component takes a long time, and the risk of working at height is high; (3) Corrosion of the support structure and insufficient wind resistance: The support structure corrodes in harsh environments, leading to structural instability in strong wind areas. Dust accumulation causes efficiency reduction; (4) Dust accumulation leads to efficiency degradation: Flat installation is prone to dust accumulation, resulting in power generation loss, and the obstructions on the module surface may cause "hot spot effect" (local high temperature burns the cells, or even causes a fire); (5) The installation takes up too much space.

[0024] To address the aforementioned issues, this application provides a residential photovoltaic system installed in a window, comprising: a micro inverter and a plurality of photovoltaic modules connected in series with the micro inverter; The photovoltaic module is equipped with an installation component, which is used to hang or attach the photovoltaic module to the inside of the window glass, with the front of the photovoltaic module close to or attached to the inside of the window glass.

[0025] For example, see Figure 1 The diagram shows an installation schematic of a residential photovoltaic system installed on a window according to an embodiment of the present application.

[0026] like Figure 1 As shown, a residential photovoltaic system installed in a window is illustrated. The system includes multiple flexible photovoltaic modules 1, which are arranged adjacent to each other on the inside of the window glass and located indoors. The adjacent flexible photovoltaic modules 1 are connected in series with each other.

[0027] The front of the flexible photovoltaic module 1 is close to or attached to the inside of the window glass to better receive solar energy.

[0028] In this example, the flexible photovoltaic module adopts a lightweight design (≤3kg / It can convert light energy into low-voltage direct current (usually 42-58V DC).

[0029] In some feasible embodiments, based on the foregoing scheme, the installation component includes: nano-adhesive tape; The nano-adhesive tape is placed on the edge of the photovoltaic module and is used to attach the photovoltaic module to the inside of the window glass.

[0030] For example, see Figure 2 The diagram shows a schematic of photovoltaic module mounting.

[0031] like Figure 2 As shown, the flexible photovoltaic module is rectangular in shape. Nano-adhesive tape is attached to the four corners of the flexible photovoltaic module to bond it to the inside of the window glass.

[0032] In this example, nano tape can improve adhesion by about 60% compared to ordinary foam tape.

[0033] In some feasible embodiments, based on the foregoing solution, the installation components include: a vacuum suction cup hook and a corn eyelet; The eyelet clip is disposed on the edge of the photovoltaic module; The vacuum suction cup hook is attached to the inside of the window glass, and the eyelet is attached to the vacuum suction cup hook.

[0034] For example, such as Figure 1 As shown, the flexible photovoltaic module 1 is rectangular in shape. Each of the four corners of the frame of the flexible photovoltaic module 1 has a pre-embedded eyelet 5, and the tensile strength of each eyelet 5 is greater than 200N. The vacuum suction cup hook 6 is attached to the inside of the window glass corresponding to the position of the eyelet 5. The flexible photovoltaic module 1 is hung on the inside of the window glass by hanging the eyelet 5 on the vacuum suction cup hook 6.

[0035] It should be noted that, in this application, the photovoltaic modules should be installed parallel to the window.

[0036] It should be noted that in this application, two non-penetrating installation methods, hook-type installation and adhesive installation, are used to avoid damaging the building structure.

[0037] In some feasible embodiments, based on the foregoing solution, the vacuum suction cup hook includes: a suction cup body and a hook disposed on the suction cup body; The suction cup body is equipped with a spring locking mechanism for triggering a vacuum. The end of the hook is equipped with a safety snap ring.

[0038] For example, such as Figure 1 As shown, rotating the suction cup body 90° triggers a vacuum, with an adsorption force ≥60N / c. The safety catch springs prevent components from accidentally falling off.

[0039] In some feasible embodiments, based on the foregoing scheme, the residential photovoltaic system further includes: an AC grid connection point and a power control module; The AC output terminal of the micro inverter is connected to an AC bus via an AC connector, and the AC bus is electrically connected to the AC grid connection point. The power control module is connected to the micro inverter and is used to control the grid-connected output power.

[0040] For example, such as Figure 3 As shown, several flexible photovoltaic modules 1 are electrically connected to a micro-inverter 2. The AC output terminal of the micro-inverter 2 is connected to an AC bus via an AC connector, and the AC bus is electrically connected to the AC grid connection point 4. The power control module 3 is connected to the micro-inverter 2 via 2.4G to control the grid-connected output power.

[0041] In this example, the flexible photovoltaic module 1 converts sunlight into direct current, which is then converted into alternating current by the micro inverter 2 to supply power to the load or flow to the grid. The output power is controlled by the power control module 3.

[0042] It should be noted that in this example, the microinverter can achieve component-level MPPT control and output 220V / 50Hz AC power.

[0043] The power control module can dynamically adjust the inverter's output power to achieve: priority power supply to the load, surplus power feeding back to the grid, and reverse current protection.

[0044] The AC grid connection point is a compliant interface for grid access and has a built-in bidirectional meter.

[0045] In some feasible embodiments, based on the aforementioned scheme, a module junction box is provided on the back of the photovoltaic module, and the module junction box is electrically connected to the micro inverter.

[0046] In some feasible embodiments, based on the aforementioned scheme, an MC4 plug is provided on the connection circuit between the component junction box and the micro inverter.

[0047] For example, such as Figure 1 As shown, each flexible photovoltaic module 1 has a module junction box 7 on its back. The module junction box 7 is connected to the micro inverter 2, and an MC4 plug is provided between the two connection circuits.

[0048] It should be noted that the MC4 plug has a quick-connect interface (IP67 waterproof), independent locking for positive and negative terminals, and a structure to prevent mis-insertion to ensure correct polarity.

[0049] In summary, compared to traditional photovoltaic systems, which require dedicated external supports and rooftop or ground space, have high land / roof area requirements, and are difficult to deploy in densely populated urban areas or small apartments, the core advantage of this technical solution lies in the spatial versatility and user-friendliness brought by its drill-free installation: it is installed directly on the glass surface using vacuum suction cups or nano-adhesive tape, without drilling or damaging the building structure, making it particularly suitable for rental housing, high-rise apartments, and other scenarios where wall modifications are not possible, and installation and disassembly are flexible and convenient; all the equipment is installed indoors, avoiding the impact of severe weather; at the same time, it makes full use of the vertical surface of windows, breaking through the space limitations of balconies and roofs, achieving "plug and play" clean power generation, and its extremely simple deployment mode significantly reduces the user's threshold for use.

[0050] Other embodiments of this application will readily conceive of by those skilled in the art upon consideration of the specification and practice of the embodiments disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. It should be understood that this application is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A residential photovoltaic system installed on a window, characterized by, Includes: a microinverter and a plurality of photovoltaic modules connected in series with the microinverter; The photovoltaic module is equipped with an installation component, which is used to hang or attach the photovoltaic module to the inside of the window glass, with the front of the photovoltaic module close to or attached to the inside of the window glass.

2. The residential photovoltaic system of claim 1, wherein, The installation components include: nano tape; The nano-adhesive tape is placed on the edge of the photovoltaic module and is used to attach the photovoltaic module to the inside of the window glass.

3. The residential photovoltaic system of claim 1, wherein, The mounting components include: a vacuum suction cup hook and a corn eyelet clip; The eyelet clip is disposed on the edge of the photovoltaic module; The vacuum suction cup hook is attached to the inside of the window glass, and the eyelet is attached to the vacuum suction cup hook.

4. The residential photovoltaic system of claim 3, wherein, The vacuum suction cup hook includes: a suction cup body and a hook disposed on the suction cup body; The suction cup body is equipped with a spring locking mechanism for triggering a vacuum. The end of the hook is equipped with a safety snap ring.

5. The residential photovoltaic system of claim 3, wherein, The tensile strength of the eyelet buckle is >200N.

6. A residential photovoltaic system as claimed in claim 2 or 3, characterised in that, The residential photovoltaic system also includes: an AC grid connection point and a power control module; The AC output terminal of the micro inverter is connected to an AC bus via an AC connector, and the AC bus is electrically connected to the AC grid connection point. The power control module is connected to the micro inverter and is used to control the grid-connected output power.

7. The residential photovoltaic system of claim 6, wherein, A module junction box is provided on the back of the photovoltaic module, and the module junction box is electrically connected to the micro inverter.

8. The residential photovoltaic system of claim 7, wherein, An MC4 connector is provided on the connection circuit between the component junction box and the micro inverter.

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