Photovoltaic unit and photovoltaic device

Abstract

The utility model is applicable to the technical field of photovoltaic devices, and provides a photovoltaic unit and a photovoltaic device, the photovoltaic unit comprises a mounting plate and a dedusting mechanism, and a photovoltaic assembly is mounted on the mounting plate; the dust removal mechanism is provided with a transmission assembly and a rolling brush assembly, and the rolling brush assembly is arranged on the transmission assembly in a sleeving mode. Groove rails are formed in the two sides of the mounting plate respectively, the two ends of the transmission assembly are connected with the groove rails and drive the rolling brush assembly to move along the groove rails, and the transmission assembly moves on the groove rails so as to drive the rolling brush assembly to move on the mounting plate to clean dust on the photovoltaic module. The cleaning effect is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of photovoltaic devices, and particularly relates to a photovoltaic unit and a photovoltaic device. Background Art

[0002] Due to the influence of climate and environmental factors, the surface of photovoltaic modules working outdoors for a long time is prone to dust accumulation. Dust is an important factor affecting the efficiency of photovoltaic power generation systems. Dust deposition will have a series of negative effects on photovoltaic modules, such as shading, corrosion and hot spot effect, thereby reducing the radiation in the system, reducing the photoelectric conversion efficiency, resulting in a reduction in the power generation of photovoltaic modules and reducing the utilization rate of photovoltaic power generation systems.

[0003] In the prior art, photovoltaic modules are generally cleaned manually or by using mechanical devices to remove dust from the glass surface of the photovoltaic modules. First, manual cleaning requires regular use of water or mops and other tools to clean the surface of the photovoltaic modules. The manual cleaning method consumes less water and is also low in cost, but the level and method of cleaning of each worker are different, which easily leads to different cleaning effects, thereby reducing the cleaning efficiency. Second, mechanical devices are used for cleaning. Although the dust removal effect is good, the existing cleaning mechanical devices require the use of mobile devices to move them to the designated position in order to work due to their large footprint, and the dust removal process also requires manual operation. At the same time, a large amount of water is required during the dust removal process, which seriously wastes water resources. Utility Model Content

[0004] The purpose of the utility model is to provide a photovoltaic unit and a photovoltaic device, so as to overcome the problem of low cleaning efficiency. The specific technical solution is as follows:

[0005] On the one hand, a photovoltaic unit is provided, including a mounting plate and a dust removal mechanism, and the photovoltaic component is mounted on the mounting plate; the dust removal mechanism is provided with a transmission assembly and a roller brush assembly, and the roller brush assembly is sleeved on the transmission assembly; groove tracks are respectively opened on both sides of the mounting plate, and the two ends of the transmission assembly are connected to the groove tracks and drive the roller brush assembly to move along the groove tracks.

[0006] Preferably, the transmission assembly includes a screw rod, gears are provided at both ends of the screw rod, a rack is laid in the groove track, and the gear is meshed with the rack.

[0007] Preferably, positioning holes are respectively provided at the tops of the inner walls at both ends of the groove track, and positioning buckles are provided on the gear, and the positioning buckles are adapted to the positioning holes.

[0008] Preferably, the mounting plate is provided with a bottom plate, the groove rails are respectively fixed on the bottom plate, and the thickness of the plane formed by the bottom plate and the end faces of the groove rails exceeds 3-5 cm.

[0009] Preferably, the roller brush assembly comprises an outer cover and a brush, and the outer cover is arranged on the surface of the brush.

[0010] On the other hand, a photovoltaic device is provided, including the photovoltaic unit, a support frame is fixed under the photovoltaic unit, the support frame includes a support beam, a connecting beam and a cross beam, the connecting beam connects the support beam and the cross beam respectively, the support beam is connected to one end of the mounting plate, and the cross beam is connected to the other end of the mounting plate.

[0011] Preferably, the cross beam is provided with a limit block, and the limit block is provided with a bayonet.

[0012] Preferably, the support frame further comprises a telescopic beam, and the telescopic beam is installed below the cross beam.

[0013] Preferably, the telescopic beam is provided with a telescopic rod and an adjusting member, the adjusting member is connected to the telescopic rod, and one end of the telescopic rod is connected to the photovoltaic unit.

[0014] Preferably, the groove track is provided with an opening along the direction of the cross beam.

[0015] Compared with the existing technology, the utility model has the following beneficial effects:

[0016] The photovoltaic unit of the present application includes a mounting plate and a dust removal mechanism, the photovoltaic module is mounted on the mounting plate, and the dust removal mechanism is provided with a transmission assembly and a roller brush assembly, wherein the roller brush assembly is sleeved on the transmission assembly, and groove tracks are respectively provided on both sides of the mounting plate, and both ends of the transmission assembly are connected to the groove tracks and drive the roller brush assembly to move along the groove tracks, and the specific transmission assembly moves at a uniform speed on the groove tracks, driving the roller brush to move on the mounting plate, so that the roller brush can evenly clean the dust on the photovoltaic module. The roller brush is used to automatically move on the mounting plate to evenly clean the dust on the photovoltaic module, replacing manual scrubbing with a mop, and effectively improving the cleaning efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a photovoltaic unit and a photovoltaic device provided by the utility model;

[0018] Figure 2 It is a partial structural schematic diagram of the photovoltaic unit and photovoltaic device provided by the utility model;

[0019] Figure 3 It is a partial structural schematic diagram of the photovoltaic unit and the photovoltaic device provided by the utility model.

[0020] Description of main reference numerals:

[0021] 1-mounting plate, 11-bottom plate, 2-dust removal mechanism, 31-screw, 32-gear, 41-outer cover, 42-brush, 5-support frame, 51-support beam, 52-connecting beam, 53-cross beam, 531-limiting block, 54-telescopic beam, 541-telescopic rod, 542-adjusting piece. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "top surface", "bottom surface", "inside", "outside", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If the terms "first", "second", "third" are described, they are only used for the purpose of description and distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is a description of the embodiments of the present invention based on its overall structure.

[0026] Embodiment 1

[0027] The utility model provides a photovoltaic unit, which is used for improving the cleaning efficiency of photovoltaic components.

[0028] The utility model is further described below in conjunction with the accompanying drawings. Figures 1 to 2 As shown, the photovoltaic unit includes a mounting plate 1 and a dust removal mechanism 2, wherein the photovoltaic component is mounted on the mounting plate 1, and the dust removal mechanism 2 is provided with a transmission component 3 and a roller brush component 4, the roller brush component 4 is sleeved on the transmission component, and groove tracks are respectively opened on both sides of the mounting plate 1, and the two ends of the transmission component 3 are connected to the groove tracks and drive the roller brush component to move along the groove tracks. The transmission component 3 in the photovoltaic unit of the utility model moves on the groove track to drive the roller brush component 4 to move, and the roller brush component 4 moves evenly on the surface of the photovoltaic component to achieve dust removal. Compared with robot cleaning, this solution is simple in process and low in cost during the dust removal process, and improves the cleaning effect compared with manual cleaning.

[0029] Furthermore, the transmission assembly 3 includes a screw rod 31, gears 32 are provided at both ends of the screw rod 31, a rack 33 is laid in the groove track, the gear 32 is meshed with the rack, the gears 32 at both ends of the transmission assembly 3 move at a uniform speed on the rack, and can drive the roller brush assembly 4 to move at a uniform speed in the groove track. The use of the gear 32 and the rack is relatively light, and can also make the roller brush move at a uniform speed to improve the cleaning effect.

[0030] Furthermore, positioning holes are respectively provided at the top of the inner walls at both ends of the groove track, and positioning buckles are provided on the gear 32, and the positioning buckles are adapted to the positioning holes. Specifically, when the roller brush assembly 4 is fixed to the top of the mounting plate 1, the positioning buckle on the gear 32 cooperates with the positioning hole so that the roller brush assembly 4 can be fixed to the mounting plate 1 when the mounting plate is in an inclined state; when the roller brush assembly 4 has finished cleaning, that is, when it moves to the bottom end of the mounting plate 1, the positioning buckle on the gear 32 cooperates with the positioning hole at the bottom end, so that the roller brush assembly 4 can be fixed to the bottom end of the mounting plate 1, which plays a certain role in fixing and limiting.

[0031] Furthermore, the mounting plate 1 is provided with a base plate 11, and the groove rails are respectively fixed on the base plate 11. The plane thickness formed by the end faces of the base plate 11 and the groove rails exceeds 3-5 cm. Setting this thickness allows the roller brush to have a certain cleaning space when moving on the photovoltaic module, which can effectively improve the cleaning effect.

[0032] Furthermore, the roller brush assembly 4 includes an outer cover 41 and a brush 42. The outer cover 41 is arranged on the surface of the brush 42. The roller brush assembly 4 in this embodiment can be used as a dry dust removal brush or a water-added dust removal brush. When used as a dry dust removal brush, the bristles 42 continue to sweep up the dust on the surface of the photovoltaic module. Since the photovoltaic module is in a fully tilted state at this time, the dust also falls off under the action of the bristles 42; when the dust accumulation is relatively serious, the roller brush assembly 4 can be connected to a water pipe. Specifically, a groove can be opened on the outer cover 41, and the water pipe can be passed into the groove, or if other accessories can accommodate the water pipe, water can be evenly sprinkled on the bristles. The specific operation is not limited here.

[0033] Embodiment 2

[0034] The utility model also provides a photovoltaic device, which is used to adjust the supporting effect of the photovoltaic unit and adjust the inclination angle of the photovoltaic unit.

[0035] See also Figure 3 The photovoltaic device includes the above-mentioned photovoltaic unit, and a support frame 5 is fixed under the photovoltaic unit. The support frame 5 includes a support beam 51, a connecting beam 52 and a cross beam 53. The connecting beam 52 connects the support beam 51 and the cross beam 53 respectively. The support beam 51 is connected to one end of the mounting plate 1, and the cross beam 53 is connected to the other end of the mounting plate 1. The support frame 5 plays a role in supporting the mounting plate 1.

[0036] Furthermore, the cross beam 53 is provided with a limit block 531, and the limit block 531 is provided with a bayonet. The bayonet in the limit block 531 in this embodiment can be flipped up and down. When the photovoltaic component does not need to be cleaned, the roller brush assembly 4 is fixed to the bottom end of the mounting plate 1, the bayonet at the limit block 531 can be opened, and the buckle on the gear 32 can be released, so that the gear 32 is separated from the rack, and the roller brush assembly 4 can be removed, thereby realizing the detachable function of the roller brush assembly 4.

[0037] Furthermore, the support frame 5 further includes a telescopic beam 54, which is installed below the cross beam 53. The telescopic beam 54 is provided with a telescopic rod 541 and an adjusting member 542, the adjusting member 542 is connected to the telescopic rod 541, one end of the telescopic rod 541 is connected to the photovoltaic unit, and the groove track is provided with an opening along the direction of the cross beam 53. Specifically, the telescopic beam 54 can adjust the inclination angle of the mounting plate 1 at will.

[0038] Working principle: When cleaning the photovoltaic module, the positioning buckle in the mobile transmission assembly 3 is disengaged from the positioning hole, so that the gear 32 moves along the rack 33 in the groove track, thereby driving the roller brush assembly 4 to remove dust along the surface of the photovoltaic module, effectively improving the cleaning effect. When cleaning is not required, the height of the telescopic beam 54 can be appropriately adjusted to make the mounting plate 1 at a suitable tilt angle. In addition, the roller brush assembly 4 can also be disassembled, which has a simple structure and is easy to install.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A photovoltaic unit, comprising a mounting plate (1) and a dust removal mechanism (2), characterized in that: The photovoltaic assembly is mounted on the mounting plate (1); the dust removal mechanism (2) is provided with a transmission assembly (3) and a roller brush assembly (4), and the roller brush assembly (4) is sleeved on the transmission assembly (3); groove tracks are respectively provided on both sides of the mounting plate (1), and both ends of the transmission assembly (3) are connected to the groove tracks and drive the roller brush assembly (4) to move along the groove tracks.

2. The photovoltaic unit according to claim 1, characterized in that: The transmission assembly (3) comprises a screw rod (31), gears (32) are arranged at both ends of the screw rod (31), a rack is laid in the groove track, and the gear (32) is meshed with the rack.

3. The photovoltaic unit according to claim 2, characterized in that: Positioning holes are respectively arranged at the top of the inner walls at both ends of the groove track, and a positioning buckle is arranged on the gear (32), and the positioning buckle is adapted to the positioning hole.

4. The photovoltaic unit according to claim 1, characterized in that: The mounting plate (1) is provided with a bottom plate (11), the groove rails are respectively fixed on the bottom plate (11), and the thickness of the plane formed by the bottom plate (11) and the end faces of the groove rails exceeds 3-5 cm.

5. The photovoltaic unit according to claim 1, characterized in that: The roller brush assembly (4) comprises an outer cover (41) and a brush (42), wherein the outer cover (41) is arranged on the surface of the brush (42).

6. A photovoltaic device, comprising the photovoltaic unit according to any one of claims 1 to 5, characterized in that: A support frame (5) is fixed below the photovoltaic unit, and the support frame (5) comprises a support beam (51), a connecting beam (52) and a cross beam (53), wherein the connecting beam (52) respectively connects the support beam (51) and the cross beam (53), the support beam (51) is connected to one end of the mounting plate (1), and the cross beam (53) is connected to the other end of the mounting plate (1).

7. The photovoltaic device according to claim 6, characterized in that: The crossbeam (53) is provided with a limit block (531), and the limit block (531) is provided with a bayonet.

8. The photovoltaic device according to claim 6, characterized in that: The support frame (5) further comprises a telescopic beam (54), wherein the telescopic beam (54) is installed below the cross beam (53).

9. The photovoltaic device according to claim 8, characterized in that: The telescopic beam (54) is provided with a telescopic rod (541) and an adjusting member (542), the adjusting member (542) is connected to the telescopic rod (541), and one end of the telescopic rod (541) is connected to the photovoltaic unit.

10. The photovoltaic device according to claim 6, characterized in that: The groove track is provided with an opening along the direction of the cross beam (53).

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