Water guiding assembly and photovoltaic module

A water guiding assembly configured to drain water or discharge other liquid or solid substances for a photovoltaic assembly is provided. The water guiding assembly includes a water guider and a mounting component. The water guider includes a water guiding portion, the water guiding portion has a fitting portion configured to abut against a frame of the photovoltaic assembly, to provide a gap between the water guiding portion and the frame to form a guiding channel. The mounting component includes a fixing portion and a connecting portion, an end of the connecting portion is detachably connected to the water guider, and another end of the connecting portion is connected to the fixing portion to form a clamping opening with the water guider and the fixing portion, which is configured to clamp the frame. The connecting portion is provided with a discharge channel butted with the guiding channel.

CROSS REFERENCE TO RELATED APPLICATIONS

This application claims the priority to Chinese Patent Application No. 202021343323.8 titled “WATER GUIDING ASSEMBLY AND PHOTOVOLTAIC MODULE”, filed with the China National Intellectual Property Administration on Jul. 8, 2020, which is incorporated herein by reference in its entirety.

FIELD

The present application relates to the technical field of photovoltaic module manufacturing, and in particular to a water guiding assembly and a photovoltaic module.

BACKGROUND

A photovoltaic assembly includes a glass layer and a photovoltaic power generation layer sequentially from top to bottom, and the glass layer and the photovoltaic power generation layer are fixed together by a frame in the circumferential direction. Generally, the frame of the photovoltaic assembly is higher than the glass layer which is at the upper layer, and thus rainwater and dust may easily remain on the glass layer. Since the photovoltaic power generation layer receives light energy from light transmitted through the glass layer, if there is rainwater and dust remain on the glass layer, the rainwater or dust will prevent the light from entering the photovoltaic power generation layer through the glass layer, which affects the power generation of the photovoltaic power generation layer, and thus the function of an antireflection coating of the photovoltaic power generation layer is weakened.

Currently, a conventional way to cope with the accumulation of water or dust on the glass layer is to provide a guiding hole or a water guiding assembly on the photovoltaic assembly. However, in a case that the guiding hole is provided in the frame to discharge accumulated water and dust, the guiding hole is required to be provided in the frame or the glass layer, leading to high requirements on the manufacturing process of the photovoltaic assembly, which is difficult to achieve. The water guiding assembly is thereby provided on the photovoltaic assembly to discharge the accumulated water and dust. However, an additional support component is required to fix the water guiding assembly, and after the water guiding assembly is fixed to the support component, the support component is fixed to the frame by screws. The installation process is complicated. Also, the support component and the water guiding assembly have independent functions, and the structural requirements are complex, which increase manufacture and installation costs.

SUMMARY

An object of the present application is to provide a water guiding assembly and a photovoltaic module, to address the technical problems of high production and installation costs of the conventional water guiding assembly.

In order to achieve the above object, a water guiding assembly configured to drain water or discharge other liquid or solid substances for a photovoltaic assembly is provided according to the present application. The water guiding assembly includes:a water guider, where the water guider includes a water guiding portion, the water guiding portion has a fitting portion configured to abut against a frame of the photovoltaic assembly, to provide a gap between the water guiding portion and the frame, so as to form a guiding channel; anda mounting component, where the mounting component includes a fixing portion and a connecting portion, the connecting portion has one end detachably connected to the water guider, and another end connected to the fixing portion, to form a clamping opening with the water guider and the fixing portion; the clamping opening is configured to clamp the frame; where the connecting portion is provided with a discharge channel butted with the guiding channel.

In an embodiment, an inner wall of the guiding channel has wettability.

In an embodiment, the fitting portion has a fitting surface, the water guiding portion further has a water guiding surface connected to the fitting surface, and an angle is formed between the water guiding surface and the fitting surface, which is greater than 180 degrees, to allow the gap to be formed between the water guiding surface and the frame when the fitting surface abuts against the frame, to form the guiding channel.

In an embodiment, the water guiding surface is an arc-shaped surface.

In an embodiment, the water guiding portion includes a water guiding surface, and the fitting portion is a boss protruding downward from the water guiding surface; the boss has a fitting surface, and the fitting surface is away from the water guiding surface and abuts against the frame.

In an embodiment, the water guider further includes a mounting portion perpendicular to the water guiding portion, and the mounting portion is provided with a buckle at an end that is away from the water guiding portion; the connecting portion is perpendicular to the fixing portion, the connecting portion is provided with a buckle slot at an end that is away from the fixing portion, and the buckle is in a snap fit with the buckle slot.

In an embodiment, the fixing portion is provided with an anti-separation buckle at an end that is away from the connecting portion, and the anti-separation buckle is configured to with the frame.

In an embodiment, the connecting portion is provided with multiple buckle slots, and the buckle slots are arranged at intervals in a direction toward the fixing portion.

In an embodiment, the connecting portion includes a connecting segment and a pressing segment, the pressing segment is perpendicular to the connecting segment, and the pressing segment presses against a surface, away from the fitting portion, of the water guiding portion.

In an embodiment, a width of the connecting portion is less than or equal to a width of the fitting portion, to form, at an edge of the connecting portion, the discharge channel that is connected to the guiding channel.

A photovoltaic module is further provided by the present application, including the photovoltaic assembly and the water guiding assembly described above, where the guiding channel with a water guiding port is formed between the water guider of the water guiding assembly and a top of the frame of the photovoltaic assembly; where the discharge channel of the mounting portion of the water guiding assembly is butted with the guiding channel, and the water guiding port is located at the photovoltaic assembly.

According to the water guiding assembly and photovoltaic module in the embodiments of the present application, by providing the fitting portion on the water guiding portion, a capillary guiding channel is directly formed between the water guiding portion and the frame after the water guiding assembly is mounted. When there is water accumulated on a glass layer, which is located at an inner side of the frame, the accumulated water flows to the guiding channel, such that the water or dust in the frame is introduced to the water guider. The water guider is mounted on the frame through the mounting component, and the mounting component includes a fixing portion and a connecting portion. Since the connecting portion detachably connected with the water guider, the disassembly and assembly of the water guider are realized. Since a structure having the clamping opening can be formed by the connecting portion, the water guider and the fixing portion after the connecting portion is connected to the water guider, the water guider is mounted and fixed on the frame through the clamping opening, which simplifies the installation of the water guider and reduces the installation cost. Since the connecting portion is provided with the discharge channel butted with the guiding channel, the water guider is capable of guiding water to the discharge channel via the guiding channel, and further discharges the water out of the frame through the discharge channel. The mounting component has a drainage function, so that the structure of the water guider can be simplified and the production cost can be reduced.

REFERENCE NUMERALS

DETAILED DESCRIPTION OF THE EMBODIMENTS

Technical solutions according to the embodiments of the present application will be described clearly and completely as follows in conjunction with the accompany drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments according to the present application, rather than all of the embodiments. All the other embodiments obtained by those skilled in the art based on the embodiments in the present application without any creative work belong to the scope of protection of the present application.

It should be noted that, all directional indicators (such as up, down, left, right, front, back . . . ) in the embodiments of the present application are only used for explaining a relative position relationship and movement situation among components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indicators will change accordingly.

In addition, the terms “first” and “second” in the embodiments of the present application are only used for descriptive purposes, and cannot be understood as indicating or implying its relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with “first” and “second” may include at least one of the features explicitly or implicitly. In addition, the technical solutions of the embodiments can be combined with each other on the basis that the combination of the technical solutions can be implemented by the person skilled in the art. When the technical solutions are contradictory or the combination of the technical solutions be implemented, it should be considered that such a combination of technical solutions does not exist, and is not within the protection scope of the present application.

A water guiding assembly applicable to a photovoltaic assembly is provided by the application, which is configured to drain water or discharge other liquid or solid substances for the photovoltaic assembly. Specifically, the water guiding assembly is mounted on a frame of the photovoltaic assembly.

Referring toFIGS. 1 to 6, the water guiding assembly30includes a water guider31and a mounting component32. The water guide31is configured to guide water, and the mounting component32is configured to fix the water guider31and drain water.

In the embodiment, the water guiding assembly30is applied to the photovoltaic assembly, to achieve the function of water drainage or other substances removal by cooperation with the photovoltaic assembly. It should be noted here that the photovoltaic assembly includes a frame20, a glass layer40and a photovoltaic power generation layer10. The glass layer40is located above the photovoltaic power generation layer10, and the glass layer40and the photovoltaic power generation layer10are mounted in the frame20. An end face of the frame20, located on the same side of the glass layer, is defined as an upper end face21, and an end surface that is opposite to the upper end face21is defined as a lower end face22. A surface of the frame20between the upper end face21and the lower end face22and located at an outer side of the frame20is defined as an outer side face23; and a surface of the frame20for mounting the glass layer40and the photovoltaic power generation layer10is defined as an inner side face.

The water guider31includes a water guiding portion311, the water guiding portion311has a fitting portion312configured to abut against the frame20of the photovoltaic assembly, so as to provide a gap between the water guiding portion311and the frame20to form a guiding channel314, where an inner wall of the guiding channel314has wettability.

The mounting component32includes a fixing portion321and a connecting portion322, the connecting portion322has one end detachably connected to the water guider31and another end connected to the fixing portion321, to form a clamping opening with the water guider31and the fixing portion321, and the clamping opening is used to clamp the frame20. The connecting portion322is provided with a discharge channel323butted with the guiding channel314. That is, the mounting component32is provided with the discharge channel323to butt with the guiding channel314, and the water drained from the guiding channel314is discharged through the discharge channel323, thus the mounting component32functions to drain the water while fixing the water guider31. With the above arrangement, there is no need to provide a drainage channel in the water guider31, which simplifies the structure of the water guider31, and thereby reducing the production cost of the water guider31.

Specifically, when the water guiding assembly30is mounted on the frame20, the water guiding portion311is located at the upper end face21of the frame20. One end of the water guiding portion311is located on the glass layer40which is at the inner side face of the frame20, and another end of the water guiding portion311toward the outer side face23of the frame20. The mounting component32is located at the outer side face23of the frame20, and the connecting portion322of the mounting component32is connected to the another end of the water guiding portion311which is away from the glass layer40. A U-shaped clamping opening is formed by the water guider31, the connecting portion322, and the fixing portion321, and the U-shaped clamping opening clamps the frame20, to fixing and mounting the water guider31on the frame20.

The water guiding assembly30is mounted on the frame20of the photovoltaic assembly. The water guiding portion311is located at the upper end face21of the frame20, and the guiding channel314is formed between the water guiding portion311and the upper end face21of the frame20. The guiding channel314is butted with the discharge channel323on the connecting portion322, the accumulated water or dust on the glass layer40is guided to the discharge channel323via the guiding channel314, and then discharged out of the frame20through the discharge channel323.

It should be noted that, the water guiding assembly30according to this embodiment employs the capillary principle to realize guiding the accumulated water to the discharge channel323by the water guiding portion311. Specifically, with the arrangement of the fitting portion312of the water guiding portion311, the gap is formed between the water guiding portion311and the frame20after the water guiding assembly30is mounted on the frame20, and the gap forms the capillary guiding channel314. When there is accumulated water on the glass layer40located at the inner side of the frame20, the accumulated water flows along the guiding channel314in a direction toward the discharge channel323, the water accumulated on the glass layer40and in the frame20is sucked into the water guiding portion311and further guided into the discharge channel323. Since the discharge channel323is located at the outer side of the frame20, the accumulated water is discharged out of the frame20along the discharge channel323under an action of gravity. Specifically, the discharge channel323is embodied as a channel formed by the mounting component32of the water guider31and the outer side face23of the frame20. Since the capillary principle is adopted in this embodiment for guiding the water, which has certain water suction ability, compared to a manner of directly providing a guiding hole to drain water (without water suction ability), the water guiding assembly30in this embodiment can discharge accumulated water or other substances more effectively.

In addition, since a size of the water guiding channel may affect capillary performance, in this embodiment, the fitting portion312is provided to allow the guiding channel314to be directly formed between the water guiding portion311and the frame20when the water guiding assembly30is mounted, which prevents mounting misalignment of the guiding channel314, improves a mounting accuracy of the water guiding assembly30, and thereby improving the water guiding performance of the water guiding assembly30.

It can be understood that, in a case that a width of the connecting portion322is provided to be less than or equal to a width of the fitting portion312, to form, at an edge of the connecting portion322, the discharge channel323butted with the guiding channel314, in this way, when the water in the guiding channel314is drained to a position above the discharge channel323, the water flows out of the frame20through the discharge channel323. Therefore, the mounting component32in this embodiment not only functions to mount and fix the water guider31, but also functions to drain the water in the water guide channel314out of the frame20, so that no additional drainage structure is needed on the water guider31, which simplifies the structure of the water guider31, and thereby reducing the production cost of the water guider31.

Secondly, since the clamping opening can be formed by cooperation between the mounting component32and the water guider31, the water guider31is able to clamp on the frame20via the clamping opening without using screws, which simplifies the mounting process. Moreover, with the structural design of the fitting portion312, the guiding channel314of the water guiding assembly30is further ensured to meet capillary action requirements while the mounting is simplified at the same time.

In a further embodiment, the inner wall of the guiding channel314of the water guider31has wettability, specifically, the inner wall of the guiding channel314is made of a wettable material, and thus the inner wall of the guiding channel314has wettability. Due to the wettability of the inner wall of the guiding channel314, the accumulated water on the inner side of the frame20can flow along the inner wall of the guiding channel314to the discharge channel323. The guiding channel314with wettability has a better water guiding performance.

It can be understood that, the structure of the water guider31in the embodiments of the present application may have many simplified forms. The two types listed below are only two of the preferable solutions. The water guider31in the embodiments of the present application includes but is not limited to the following two types.

In an embodiment, reference is made toFIGS. 2 and 4. The fitting portion312of the water guider31has a fitting surface3121, the water guiding portion311further has a water guiding surface313connected to the fitting surface3121, and an angle is formed between the water guiding surface313and the fitting surface3121, which is greater than 180 degrees, so that a gap is formed between the water guiding surface313and the frame20when the fitting surface3121abuts against the frame20, to form the guiding channel314. Specifically, the water guiding surface313is the inner wall of the guiding channel314.

In this embodiment, the angle is shown as θ inFIG. 2, which is greater than 180 degrees, so that the water guiding surface313and the fitting surface3121are not on the same horizontal plane. Thus, when the fitting surface3121is fitted on the frame20, there is a gap between the water guiding surface313and the frame20, and the gap forms the guiding channel314.

It can be understood that, the water guiding surface313may be a flat surface, which is arranged obliquely with respect to the fitting surface3121. The water guiding surface313may also be an arc-shaped surface. Referring toFIG. 2, the arc-shaped water guiding surface313may be only provided at one side of the fitting surface3121, or, the arc-shaped water guiding surface313may also be provided at each of both sides of the fitting surface3121. Since the arc-shaped water guiding surface313has a larger effective area, it has a better water guiding performance.

In another embodiment, referring toFIGS. 5, 6 and 7, the water guiding portion311includes a water guiding surface313, the fitting portion312is a boss protruding downward from the water guiding surface313, and the fitting surface3121, away from the water guiding surface313, of the boss abuts against the frame20.

Specifically, the water guiding portion311is a water guiding plate, one surface of the water guiding plate, facing the upper end face21of the frame20, is the water guiding surface313, and the boss protrudes downward from the water guiding surface313. Thus, when the water guiding assembly30is mounted on the frame20, the boss abuts against the frame20, and the guiding channel314is formed between the water guiding surface313and the frame20. In this way, a height of the boss is a width of the guiding channel314.

It can be understood that, an area occupied by the boss on the water guiding surface313is smaller than an area of the water guiding surface313. The water guiding surface313may be provided with one boss, and the boss is disposed at any position of the water guiding surface313. Alternatively, the water guiding surface313may be provided with multiple bosses with a smaller length compared with a length of the boss in the above situation that only one boss is provided, the multiple bosses are arranged at intervals or in a staggered manner, and the multiple bosses ensure that the water guider is always stable.

In a further embodiment, the boss is arranged at a middle position of the water guiding surface313, to divide the gap between the water guiding surface313and the frame20into at least two guiding channels314, where the water is guided by the water guiding surface313toward a drainage surface. Herein, the drainage surface is a surface of the water guiding assembly30where the discharge channel323is located and close to the outer side face23.

The boss extends along the direction in which the water flows into the guiding channel314, so as to divide the gap between the water guiding surface313and the frame20into two guiding channels314, where the water is guided by the guiding channel314toward the discharge channel323.

That is, the boss is provided as a protrusion in the middle of the water guiding surface313, and the boss divides the gap between the water guiding surface313and the frame20into two open guiding channels314. That is, the guiding channel314having an opening at one side thereof is defined by the water guiding surface313, the boss and the frame20. In this embodiment, since the guiding channel314is open, if there are unwanted substances having large particle sizes on the glass layer40of the photovoltaic assembly, they can be discharged through the opening of the guiding channel314. In addition, the opening also facilitates manual cleaning, which effectively prevents the guiding channel314from being blocked by the substances.

In a further embodiment, referring toFIG. 7, the water guiding surface313includes a first water guiding surface3131and a second water guiding surface3132. The second water guiding surface3132has one end connected to the drainage surface and the other end connected to the first water guiding surface3131. The first water guiding surface3131is arranged obliquely with respect to the second water guiding surface3132, so that the first water guiding surface3131is located above the glass layer40of the photovoltaic assembly, to form a water guiding port with the glass layer40. Where, the fitting portion312is arranged at the second water guiding surface3132.

In this embodiment, the first water guiding surface3131is arranged obliquely with respect to the second water guiding surface3132, so that the first water guiding surface3131extends toward the glass layer40located in the frame20, to make the water guiding assembly30be in contact with the accumulated water on the glass layer40, so as to introduce the accumulated water into the guiding channel314.

In other embodiments, the first water guiding surface3131may also be an arc-shaped surface. In this way, the first water guiding surface3131is on the glass layer40and forms an arc-shaped water guiding port with the glass layer40, which increases an contact area between the water guiding assembly30and the water, and thereby increasing the water guiding speed.

In the embodiments of the present application, the mounting component32and the water guider31may be connected in various manners, two of which are listed below.

Referring toFIGS. 5 to 8, in an embodiment, the mounting component32is buckled with the water guider31. For example, the water guider31further includes a mounting portion315, which is perpendicular to the water guiding portion311. The mounting portion315is provided with a buckle316at an end that is away from the water guiding portion311. The connecting portion322is perpendicular to the fixing portion321and is provided with a buckle slot3221at an end that is away from the fixing portion321, and the buckle316is in a snap fit with the buckle slot3221. Where, the buckle316may be an elastic buckle.

The specific mounting process is as follows. The water guiding portion311of the water guider31is placed on the upper end face21of the frame20, and the mounting portion315is arranged to extend along the outer side face23of the frame20toward the lower end face22of the frame20. The fixing portion321of the mounting component32abuts against the lower end face22of the frame20, and the connecting portion322extends along the outer side face23of the frame20toward the upper end face21of the frame20. The elastic buckle316of the mounting portion315is inserted into the buckle slot3221, so that the water guider31and the mounting component32are buckled and fixed on the frame20.

In this embodiment, the water guider31is fixed on the frame20through the elastic buckle316, which is convenient to mount and easy to disassemble. Further, there is no need to improve the frame20, which reduces the requirements of improving the photovoltaic assembly.

It can be understood that, since the mounting component32and the water guider31are in a snap fit with each other, a U-shaped clamping opening is formed by the mounting component32and the water guider31to clamp the frame20, to realize quick mounting of the water guider31. In order to improve the stability of the water guider31, a barb324or the like is provided at a surface of the fixing portion321facing the frame20, to enlarge friction between the fixing portion321and the frame20, so as to improve stability. Alternatively, in preferred embodiment, an anti-separation buckle3211is provided at an end, away from the connecting portion322, of the fixing portion321, and the anti-separation buckle3211is configured to buckle the frame20, to prevent the mounting component32from falling off from the frame20. Specifically, the anti-separation buckle3211is a buckle groove that clasps an edge of the frame20, so that the mounting component32is fixed on the frame20.

In a further embodiment, referring toFIGS. 9 and 10, the connecting portion322is provided with multiple buckle slots3221arranged at intervals in a direction toward the fixing portion321. By providing the multiple buckle slots3221in the connecting portion322, a corresponding buckle slot3221may be selected to be in the snap fit with the water guider31according to a height of the frame20. That is, a distance between the water guider31and the mounting component32can be adjusted through the multiple buckle slots3221. In this way, the mounting component32in this embodiment may be adapted to the mounting of various types of photovoltaic assemblies, which improves the applicability of the water guiding assembly30in this embodiment.

Referring toFIGS. 1, 3, and 4, in another embodiment, the mounting component32and the water guider31are connected in an elastically pressing manner. For example, the connecting portion322includes a connecting segment3222and a pressing segment3223perpendicular to the connecting segment3222, and the pressing segment3223presses against a surface, away from the fitting portion312, of the water guiding portion311.

Specifically, a U-shaped structure is defined by the pressing segment3223, the connecting portion3222, and the fixing portion321. During the mounting process of the water guider31, the water guider31is mounted on the upper end face21of the frame20; the fixing portion321abuts against the lower end face22of the frame20, and the pressing segment3223presses against the water guider31. A distance between the pressing section3223and the fixing portion321is set to provide an interference fit with the frame20, so as to tightly press the water guider31against the upper end face21of the frame20.

The mounting component32in this embodiment has a simple structure and is convenient to mount.

In a further embodiment, in order to increase the stability of the mounting component32, so as to improve the stability of the water guider31, an anti-separation structure is provided on a surface, abutting against the frame20, of the fixing portion321, to prevent the fixing portion321from being separated from the frame20under an action of an external force, which may lead to separation of the water guider31. Specifically, the anti-separation structure may be the barb324provided on the surface, abutting against the frame20, of the fixing portion321, or a rack provided on the surface abutting against the frame20, of the fixing portion321.

A photovoltaic module100is further provided according to the present application. Referring toFIGS. 1 to 10, the photovoltaic module100includes the photovoltaic assembly. The photovoltaic assembly includes the photovoltaic power generation layer10, the glass layer40, the frame20, and the water guiding assembly30, where the glass layer40is located above the photovoltaic power generation layer10, and both the glass layer40and the photovoltaic power generation layer10are mounted in the frame20. The guiding channel314with the water guiding port is formed between the water guider31of the water guiding assembly30and the top of the frame20. The discharge channel323of the mounting component32of the water guiding assembly30butts with the guiding channel314. The water guiding port is located on the glass layer40, to drain the water or other substances on the glass layer40out of the frame20through the water guiding port, the guiding channel314and the discharge channel323.

The water guiding assembly30employed by the photovoltaic module100in this embodiment is the water guiding assembly30described in the above embodiments, so the photovoltaic module100in this embodiment has all the beneficial effects of the water guiding assembly30described above.

It should be noted that, in order to accelerate the drainage of accumulated water on the glass layer40of the photovoltaic module100, the photovoltaic module100includes at least two water guiding assemblies30arranged on the frame20at intervals, the two water guiding assemblies30guide water at the same time to increase the water guiding speed, so that the glass layer40of the photovoltaic module100can keep dry and clean all the time.

The embodiments described hereinabove are only preferred embodiments of the present application, and are not intended to limit the scope of the present application in any form. Although the present application is disclosed by the above preferred embodiments, the preferred embodiments should not be interpreted as a limitation to the present application. For those skilled in the art, many variations, modifications or equivalent replacements may be made to the technical solutions of the present application by using the methods and technical contents disclosed hereinabove, without departing from the scope of the technical solutions of the present application. Therefore, any simple modifications, equivalent replacements and modifications, made to the above embodiments based on the technical essences of the present application without departing from the technical solutions of the present application, are deemed to fall into the scope of the technical solution of the present application.