Device for cleaning foreign matters on surface of photovoltaic glass and photovoltaic production system

Abstract

The utility model relates to the technical field of photovoltaic glass plate production, in particular to a device for cleaning foreign matters on the surface of photovoltaic glass and a photovoltaic production system. A device for cleaning foreign matter on the surface of photovoltaic glass comprises a conveying assembly suitable for conveying a photovoltaic glass plate to be cleaned; the brush assembly comprises a cleaning brush, the cleaning brush is arranged above the photovoltaic glass plate to be cleaned, and the cleaning brush is in contact with the first surface of the photovoltaic glass plate to be cleaned; and the blowing assembly is arranged on the downstream of the brush assembly, the blowing assembly comprises a blowing nozzle, and a blowing opening of the blowing nozzle is higher than the first surface of the photovoltaic glass plate to be cleaned. The utility model provides a device for cleaning foreign matters on the surface of photovoltaic glass and a photovoltaic production system, and aims to solve the problems of low efficiency, low recognition rate by naked eyes and easiness in secondary pollution caused by manual cleaning in a traditional cleaning mode when an embossed surface of a photovoltaic glass plate needs to be cleaned after a photovoltaic module starts to be produced.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic glass plate production technical field, concretely relates to a device and photovoltaic production system that clean photovoltaic glass surface foreign matter. BACKGROUND

[0002] In the photovoltaic module production process, photovoltaic glass plate is important encapsulating material, and the embossed surface of photovoltaic glass plate needs to be matched with relevant material to complete crosslinking encapsulation through lamination, test inspection and lamination, and the cleanliness of the embossed surface of photovoltaic glass plate directly affects the sealing and appearance of module encapsulation. After the manufacture of photovoltaic glass plate is completed, glass paper is placed between each glass according to the packaging mode in the conveying process to prevent adjacent photovoltaic glass plates from rubbing and scratching, that is, glass paper is arranged between the two adjacent photovoltaic glass plates, and the glass paper needs to be removed preferentially in the production process of the module.

[0003] In the conveying process, the photovoltaic glass plate can generate paper scraps, dust, fibers and other foreign matters due to friction with the glass paper. When the embossed surface of the photovoltaic glass plate needs to be cleaned after the production of the photovoltaic module starts, the traditional cleaning method usually adopts manual cleaning, which has low efficiency, low naked-eye recognition rate and is easy to cause secondary pollution. UTILITY MODEL CONTENT

[0004] Therefore, the utility model provides a device and photovoltaic production system that clean photovoltaic glass surface foreign matter to solve the problem that when the embossed surface of the photovoltaic glass plate needs to be cleaned after the production of the photovoltaic module starts, the traditional cleaning method usually adopts manual cleaning, which has low efficiency, low naked-eye recognition rate and is easy to cause secondary pollution.

[0005] In the first aspect, the utility model provides a device that cleans photovoltaic glass surface foreign matter, which comprises:

[0006] A conveying assembly is suitable for conveying the photovoltaic glass plate to be cleaned.

[0007] A brush assembly comprises a cleaning brush, which is arranged above the photovoltaic glass plate to be cleaned and is in contact with the first surface of the photovoltaic glass plate to be cleaned.

[0008] A blowing assembly is arranged downstream of the brush assembly and comprises a blowing nozzle, and the blowing port of the blowing nozzle is higher than the first surface of the photovoltaic glass plate to be cleaned. In the cleaning state, the conveying assembly conveys the photovoltaic glass plate to be cleaned in turn through the cleaning brush and the blowing nozzle, the cleaning brush separates the foreign matter on the first surface from the photovoltaic glass plate to be cleaned, and the blowing nozzle blows gas to blow the foreign matter away from the photovoltaic glass plate to be cleaned.

[0009] The blowing nozzle and the cleaning brush are cooperated to remove the foreign matters on the first surface of the photovoltaic glass panel to be cleaned, without using manual cleaning, avoiding low visual recognition rate, and avoiding secondary pollution due to blowing of the blowing nozzle.

[0010] In an alternative embodiment, the conveying assembly comprises a base, a circulating conveying belt and a power member, the power member is fixed on the base, the rotating end of the power member is connected with the circulating conveying belt, the power member drives the circulating conveying belt to move, and the surface of the circulating conveying belt is arranged with the photovoltaic glass panel to be cleaned.

[0011] In an alternative embodiment, the brush assembly comprises a first frame, the first frame is provided with a first cross beam, the cleaning brush comprises a connecting plate, and the connecting plate is provided with a connecting rod between the first cross beam.

[0012] In an alternative embodiment, the blowing assembly further comprises a second frame, and the second cross beam of the second frame is connected with the blowing nozzle.

[0013] In an alternative embodiment, the outlet section of the blowing nozzle is arranged at an angle with the photovoltaic glass panel to be cleaned, and the angle ranges from 30° to 60°.

[0014] In an alternative embodiment, the first frame and the second frame are both "U"-shaped, the accommodating space of the first frame is suitable for accommodating the conveying assembly, and the accommodating space of the second frame is suitable for accommodating the conveying assembly.

[0015] In an alternative embodiment, the distance between the first frame and the second frame is greater than the width of the photovoltaic glass panel to be cleaned.

[0016] In an alternative embodiment, the number of the blowing nozzles is at least two, and the at least two blowing nozzles are suitable for being communicated with the air pump through the air pipe.

[0017] In an alternative embodiment, a light sensor and a controller are further included, the light sensor is located upstream of the blowing nozzle, the light sensor is fixed on the base, and the controller is connected with the light sensor and the air pump in circuit, respectively.

[0018] In a second aspect, the utility model further provides a photovoltaic production system, comprising the device of cleaning foreign matters on photovoltaic glass surface. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0020] Figure 1 A schematic view of the device for cleaning foreign matter on the surface of photovoltaic glass of the embodiment of the present application, with the photovoltaic glass plate to be cleaned located below the blowing assembly.

[0021] Figure 2 A schematic view of the device for cleaning foreign matter on the surface of photovoltaic glass of the embodiment of the present application, with the photovoltaic glass plate to be cleaned located below the blowing assembly.

[0022] Explanation of reference signs: 1, photovoltaic glass plate to be cleaned; 101, first surface; 2, conveying assembly; 201, base; 202, circulating conveying belt; 3, brush assembly; 301, first frame; 3011, first cross beam; 302, connecting rod; 303, cleaning brush; 3031, connecting plate; 4, blowing assembly; 401, second frame; 4011, second cross beam; 402, blowing nozzle; 4021, fixed section; 5, light sensor. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] The embodiments of the present application will be described below in combination with Figures 1 to 2 .

[0025] According to the embodiments of the present application, on the one hand, a device for cleaning foreign matter on the surface of photovoltaic glass is provided, which comprises: a conveying assembly 2, the conveying assembly 2 is suitable for conveying a photovoltaic glass plate 1 to be cleaned;

[0026] a brush assembly 3, the brush assembly 3 comprises a cleaning brush 303, the cleaning brush 303 is arranged above the photovoltaic glass plate 1 to be cleaned, and the cleaning brush 303 is in contact with a first surface 101 of the photovoltaic glass plate 1 to be cleaned;

[0027] The blowing assembly 4 is arranged downstream of the brush assembly 3, and the blowing assembly 4 comprises a blowing nozzle 402, the blowing port of the blowing nozzle 402 is higher than the first surface 101 of the photovoltaic glass panel 1 to be cleaned, and in the cleaning state, the conveying assembly 2 conveys the photovoltaic glass panel 1 to be cleaned to sequentially pass through the cleaning brush 303 and the blowing nozzle 402, the cleaning brush 303 separates the foreign matter on the first surface 101 from the photovoltaic glass panel 1 to be cleaned, and the blowing nozzle 402 blows gas to blow the foreign matter away from the photovoltaic glass panel 1 to be cleaned.

[0028] The foreign matter on the first surface 101 of the photovoltaic glass panel 1 to be cleaned is removed through the cooperation of the blowing nozzle 402 and the cleaning brush 303, without the need for manual cleaning, avoiding low naked-eye recognition rate, and because the blowing nozzle 402 blows gas to blow the foreign matter away from the photovoltaic glass panel 1 to be cleaned, secondary pollution is avoided. In the embodiment, the first surface 101 of the photovoltaic glass panel 1 to be cleaned is the surface used for bonding with other photovoltaic assemblies. The blowing assembly 4 is arranged downstream of the brush assembly 3, which means that the photovoltaic glass panel 1 to be cleaned first passes through the brush assembly 3 and then passes through the blowing assembly 4, that is, the foreign matter is first separated from the first surface 101 by the brush assembly 3, and then the foreign matter is separated from the photovoltaic glass panel 1 to be cleaned by the blowing nozzle 402 blowing gas. It should be noted that the gas blown by the blowing nozzle 402 in the embodiment is gas with a certain pressure, the foreign matter is paper dust generated by friction between the photovoltaic glass panel and the glass paper during transportation, dust, fibers and the like, and the first surface 101 refers to the embossed surface of the photovoltaic glass panel 1 to be cleaned.

[0029] In one embodiment, as shown in Figure 1 , Figure 2 , the conveying assembly 2 comprises a base 201, a circulating conveying belt 202 and a power member, the power member is fixedly arranged on the base 201, the rotating end of the power member is connected with the circulating conveying belt 202, and the power member drives the circulating conveying belt 202 to move, and the surface of the circulating conveying belt 202 is provided with the photovoltaic glass panel 1 to be cleaned. Specifically, the power member is a servo motor, and one circulating conveying belt 202 corresponds to one power member. By fixing the power member on the base 201, the circulating conveying belt 202 is driven to rotate by the power member, thereby driving the photovoltaic glass panel 1 to be cleaned to move from the brush assembly 3 towards the blowing assembly 4. In the embodiment, as shown in Figure 1 , Figure 2 , the number of the circulating conveying belts 202 is two, and the two circulating conveying belts 202 bear the two ends of the photovoltaic glass panel 1 to be cleaned, and the conveying directions and conveying speeds of the two circulating conveying belts 202 are the same. In addition, the conveying assembly 2 further comprises a plurality of supporting rollers, a tension roller and the like, to form a belt type conveying mechanism in the prior art, and the tension roller and the power member are respectively arranged at the two ends of the circulating conveying belt 202, and the plurality of supporting rollers are arranged between the tension roller and the power member.

[0030] In one embodiment, as shown in Figure 1 , Figure 2 The brush assembly 3 comprises a first frame 301 provided with a first cross beam 3011, and the cleaning brush 303 comprises a connecting plate 3031, and a connecting rod 302 is arranged between the first cross beam 3011 of the first frame 301 and the connecting plate 3031. The connecting rod 302 is used to connect the connecting plate 3031 and the first cross beam 3011. The cleaning brush 303 comprises a brush head fixedly connected to the connecting plate 3031, and the brush head is arranged towards the first surface 101 of the photovoltaic glass panel 1 to be cleaned. The brush head is provided with a plurality of bristles, and the length of the brush head is greater than or equal to the width of the photovoltaic glass panel 1 to be cleaned. In this embodiment, the movement direction of the photovoltaic glass panel 1 to be cleaned along the circulating conveying belt 202 is defined as the length direction, and the width direction is perpendicular to the length direction.

[0031] In one embodiment, as shown in Figure 1 , Figure 2 The air blowing assembly 4 further comprises a second frame 401, and a second cross beam 4011 of the second frame 401 is connected to the air blowing nozzle 402. The second cross beam 4011 supports the air blowing nozzle 402 to fix the air blowing nozzle 402.

[0032] In one embodiment, as shown in Figure 1 , Figure 2 The air outlet section of the air blowing nozzle 402 is arranged at an angle to the photovoltaic glass panel 1 to be cleaned, and the angle is in the range of 30°-60°, and preferably 45°. In this embodiment, the air blowing nozzle 402 comprises a fixed section 4021 and an air outlet section. The fixed section 4021 is fixedly connected to the second cross beam 4011, and the fixed section 4021 is a metal rod. The gas outlet of the air outlet section of the air blowing nozzle 402 is arranged towards the brush assembly 3, so that the blowing direction of the gas is opposite to the movement direction of the photovoltaic glass panel 1 to be cleaned. The air outlet section is composed of an air pipe and an air nozzle. It should be noted that the height distance between the air blowing nozzle 402 and the first surface 101 of the photovoltaic glass panel 1 to be cleaned should not be too large, and the height distance is in the range of 1-8 mm, and preferably 4 mm.

[0033] In one embodiment, as shown in Figure 1 , Figure 2As shown, the first frame 301 and the second frame 401 are respectively "U" shaped, and the accommodating space of the first frame 301 is adapted to accommodate the conveying assembly 2, and the accommodating space of the second frame 401 is adapted to accommodate the conveying assembly 2. The inverted "U" shaped structure formed by the first frame 301 and the second frame 401 is such that the brush head of the cleaning brush 303 and the air outlet section of the air blowing nozzle 402 are respectively arranged towards the first surface 101 of the photovoltaic glass panel 1 to be cleaned. It should be noted that a gap is left between the inner side of the first frame 301 or the second frame 401 and the outer side of the conveying assembly 2, and the existence of the gap makes it possible to clean the photovoltaic glass panel 1 to be cleaned of different sizes as long as the photovoltaic glass panel 1 to be cleaned is greater than the interval of the two circulating conveying belts 202 and smaller than the interval between the inner sides of the first frame 301 or the second frame 401, so as to adapt to photovoltaic glass panels 1 to be cleaned of different sizes.

[0034] In one embodiment, as shown in Figure 1 , Figure 2 The interval between the first frame 301 and the second frame 401 is greater than the width of the photovoltaic glass panel 1 to be cleaned, so that at least two photovoltaic glass panels 1 to be cleaned are placed on the circulating conveying belts 202 of the conveying assembly 2, effectively improving the overall cleaning efficiency of the photovoltaic glass panel 1 to be cleaned. It should be noted that a gap is left between the two adjacent photovoltaic glass panels 1 to be cleaned during transportation, so that the foreign matter on the first surface 101 of the photovoltaic glass panel 1 to be cleaned upstream is blown off by the air blowing nozzle 402 to the ground.

[0035] In one embodiment, as shown in Figure 1 , Figure 2 The number of air blowing nozzles 402 is at least two, and the at least two air blowing nozzles 402 are adapted to communicate with the air pump through an air pipe. Specifically, the number of air blowing nozzles 402 in the present embodiment is 15, and the air blowing nozzles 402 adopt flat fan metal nozzles to increase the air outlet width of a single air blowing nozzle 402. The air pump is an air compressor, and the air compressor blows high-pressure gas with a certain pressure. It should be noted that the air blowing nozzles 402 are connected with the air pump through an air pipe, and the air blowing nozzles 402 are supplied with high-pressure gas with a certain pressure by the air pump to blow towards the surface of the photovoltaic glass panel 1 to be cleaned.

[0036] In order to realize automatic sensing and automatic control, a light sensor 5 is arranged upstream of the blowing nozzle 402 and close to the blowing nozzle, the light sensor 5 is fixed to the base 201 and located below the photovoltaic glass panel 1 to be cleaned to sense whether the photovoltaic glass panel 1 to be cleaned passes through, and a controller is connected with the light sensor 5, the air pump and the power member in circuit to make the blowing nozzle 402 start blowing when the photovoltaic glass panel 1 to be cleaned reaches the range of the second frame 401, and to close the blowing nozzle 402 after passing through the second frame 401, so as to realize automatic cleaning. Specifically, the controller is a PLC board. In order to facilitate personnel operation, a control panel is further arranged, which is connected with the PLC board in circuit, and personnel can realize automatic control through buttons on the control panel.

[0037] A photovoltaic production system comprising the device for cleaning foreign matters on the surface of photovoltaic glass panel, further comprising two mechanical arms, the mechanical arms are arranged on both sides of the device for cleaning foreign matters on the surface of photovoltaic glass panel, and are divided into an upper feeding mechanical arm and a lower feeding mechanical arm, and a controller is connected with the upper feeding mechanical arm and the lower feeding mechanical arm in circuit to adsorb the photovoltaic glass panel to be cleaned and the cleaned photovoltaic glass panel, so as to realize automatic feeding and discharging.

[0038] A use method of the device for cleaning foreign matters on the surface of photovoltaic glass panel, comprising the following steps:

[0039] (1) Start the upper feeding mechanical arm and the power member, and place the photovoltaic glass panel to be cleaned on the circulating conveying belt 202 by the upper feeding mechanical arm, and convey the whole photovoltaic glass panel to be cleaned through the brush assembly 3 by the brush on the brush head to clean the first surface 101 to separate the foreign matters from the first surface 101, so as to realize the first cleaning;

[0040] (2) With the movement of the circulating conveying belt 202, the photovoltaic glass panel to be cleaned moves towards the second frame 401, the light sensor 5 senses the entering of the photovoltaic glass panel to be cleaned, starts the air pump, and the blowing nozzle 402 sprays gas to blow the foreign matters away from the first surface 101 of the photovoltaic glass panel, the gas blown by the blowing nozzles 402 covers the width direction of the photovoltaic glass panel to be cleaned to ensure the cleaning effect, and the lower feeding mechanical arm takes out the cleaned photovoltaic glass panel to be cleaned.

[0041] The device for cleaning foreign matters on the surface of photovoltaic glass has the following advantages: (1) the cooperative work of the cleaning brush 303 and the blowing nozzle 402 is realized, and the foreign matters on the first surface 101 of the photovoltaic glass plate 1 to be cleaned can be quickly and effectively removed; (2) the automation operation is realized by the controller, and the manual intervention is reduced, the labor intensity of the personnel is reduced, and the production efficiency is improved; (3) the conveying speed of the circulating conveying belt 202 and the gas pressure of the blowing nozzle 402 can be adjusted according to the pollution degree of the first surface 101, so that the cleaning effect is ensured; (4) the device is suitable for cleaning photovoltaic glass plates of different sizes and different types; (5) the overall structure is relatively simple, and the device is easy to maintain and replace; (5) the cleaning brush 303 and the blowing nozzle 402 are stationary, and the photovoltaic glass plate 1 to be cleaned moves, so that the photovoltaic glass plate 1 to be cleaned in flow is cleaned.

[0042] As an alternative embodiment, the number of blowing nozzles 402 can also be 2, 3, 4 or even more.

[0043] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope defined by the appended claims.

Claims

1. A device for cleaning foreign matter from the surface of a photovoltaic glass, characterized in that, The device comprises: a conveying assembly (2) suitable for conveying a photovoltaic glass panel (1) to be cleaned; a brush assembly (3) comprising a cleaning brush (303) arranged above the photovoltaic glass panel (1) to be cleaned, the cleaning brush (303) being in contact with a first surface (101) of the photovoltaic glass panel (1) to be cleaned; a blowing assembly (4) arranged downstream of the brush assembly (3), the blowing assembly (4) comprising a blowing nozzle (402), the blowing nozzle (402) having a blowing opening with a height higher than the first surface (101) of the photovoltaic glass panel (1) to be cleaned, in a cleaning state, the conveying assembly (2) conveying the photovoltaic glass panel (1) to be cleaned sequentially through the cleaning brush (303) and the blowing nozzle (402), the cleaning brush (303) separating foreign matters on the first surface (101) from the photovoltaic glass panel (1) to be cleaned, and the blowing nozzle (402) blowing gas to blow the foreign matters away from the photovoltaic glass panel (1) to be cleaned.

2. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 1, wherein, The conveying assembly (2) comprises a base (201), a circulating conveying belt (202), and a power member fixedly arranged on the base (201), a rotating end of the power member being connected with the circulating conveying belt (202), the power member driving the circulating conveying belt (202) to move, and the circulating conveying belt (202) having a surface on which the photovoltaic glass panel (1) to be cleaned is placed.

3. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 2, wherein The brush assembly (3) comprises a first frame (301) provided with a first cross beam (3011), and the cleaning brush (303) comprises a connecting plate (3031) and a connecting rod (302) arranged between the connecting plate (3031) and the first cross beam (3011).

4. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 3, wherein The blowing assembly (4) further comprises a second frame (401), and a second cross beam (4011) of the second frame (401) is connected with the blowing nozzle (402).

5. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 4, wherein An outlet section of the blowing nozzle (402) is arranged at an angle with the photovoltaic glass panel (1) to be cleaned, and the angle ranges from 30° to 60°.

6. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 5, wherein The first frame (301) and the second frame (401) are respectively "U"-shaped, the first frame (301) has a containing space suitable for containing the conveying assembly (2), and the second frame (401) has a containing space suitable for containing the conveying assembly (2).

7. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 5, wherein A distance between the first frame (301) and the second frame (401) is greater than a width of the photovoltaic glass panel (1) to be cleaned.

8. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 5, wherein The number of the blowing nozzles (402) is at least two, and at least two of the blowing nozzles (402) are suitable for being in communication with a gas pump through gas pipes.

9. The apparatus for cleaning foreign matter on a photovoltaic glass surface according to claim 8, wherein, The device further comprises a light sensor (5) arranged upstream of the blowing nozzle (402), the light sensor (5) being fixed to the base (201), and a controller connected with the light sensor (5) and a gas pump circuit respectively.

10. A photovoltaic production system, characterized by, The device comprises the device for cleaning foreign matters on a photovoltaic glass surface according to any one of claims 1-9.

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