An antireflection coated glass color difference observation device and its observation method

Abstract

The present invention provides a device for observing the color difference of antireflection coated glass, which comprises a detection table (1), and is characterized in that: the detection table (1) comprises a tank body (1a), a group of support legs (1b) are connected to the bottom of the tank body (1a), a group of support columns (3) are evenly distributed in the tank body (1a), a liquid level control assembly (2) is communicated with the tank body (1a), a fully black coating is provided on the inner wall of the tank body (1a) and the outer surface of the support columns (3), a group of liquid flow pushing assemblies (4) are installed in the tank body (1a), and a liquid is provided in the tank body (1a). The antireflection coated glass is placed in the tank body, and the liquid level is controlled to rise and fall to a proper position, and then the color difference of the antireflection coated glass can be observed. The provided device has a simple structure, is convenient to use, and the observation method is simple, and can accurately and quickly observe the subtle color difference on the surface of the low-color-difference coated glass.

Description

Technical field:

[0002] The invention relates to the field of anti-reflection coated glass detection, and in particular to an anti-reflection coated glass chromatic aberration observation device and an observation method thereof. Background technology:

[0004] The front side of the rolled photovoltaic glass (called velvet in the industry) is coated with an anti-reflection and anti-transmission coating to increase light transmittance and improve the power generation capacity of photovoltaic modules. The back side of the rolled photovoltaic glass is an embossed surface (a surface covered with small uneven grooves, with a depth of about 0.12mm and a certain mesh number arrangement). The purpose of the embossing on the back side is to better fit the EVA film of the photovoltaic power generation module and increase friction to prevent movement.

[0005] When the front of rolled photovoltaic glass is coated, the difference in the thickness of the coating film often causes color difference defects on the glass surface. At present, the color difference of coated glass is usually detected by direct observation with the naked eye or by using a lamp to illuminate the glass surface and then observe the surface color difference. As the coating process gradually matures, the uniformity of the film layer becomes higher and higher, and the color difference on the glass surface becomes smaller and smaller. Under normal circumstances, it is difficult to observe the color difference on the glass surface. However, after the glass is made into photovoltaic modules, the modules are laminated, and the glass is tightly attached to the EVA film, battery cell, and black backplane, so it is easier to observe surface color difference defects, resulting in customer complaints. Summary of the invention:

[0007] The present invention aims to overcome the deficiencies in the prior art and provides an anti-reflection coated glass chromatic aberration observation device and an observation method thereof.

[0008] The present application provides the following technical solutions: A device for observing chromatic aberration of anti-reflective coated glass, which includes a detection platform, characterized in that: the detection platform includes a trough body, a group of supporting legs are connected to the bottom of the trough body, a group of supporting columns are evenly distributed in the trough body, a liquid level control component is connected to the trough body, a full black coating is provided on the inner wall of the trough body and the outer surface of the supporting column, and a liquid is provided in the trough body, and the liquid is water or a saturated sodium chloride solution.

[0009] On the basis of the above technical solutions, the following technical solutions can also be provided:

[0010] A cushion layer made of rubber or silicone is connected to the top of the support column.

[0011] A group of liquid flow driving components is installed in the tank body, which includes a mounting groove on the inner wall of the tank body, a rotating shaft passing through the mounting groove, a paddle connected to one end of the rotating shaft, and the other end of the rotating shaft is connected to the motor installed on the outer wall of the outer tank body.

[0012] The described liquid level control assembly includes a slide rail provided on the tank wall of the tank body, a slider provided on the slide rail and correspondingly matched, a locking pin provided on the slider, an overflow port provided on the tank body, an overflow pipe connected to the overflow port, a support rod connected to the slider, and the support rod is connected to the overflow pipe.

[0013] The described overflow pipe includes a corrugated pipe section and a straight pipe section. The overflow port is communicated with the corrugated pipe section, and the support rod is connected to the straight pipe section.

[0014] The described liquid level control assembly includes a liquid discharge port and a liquid inlet provided on the tank body, a liquid supply tank provided below the detection table, a liquid inlet pipe and a liquid outlet pipe correspondingly matched and connected to the liquid discharge port and the liquid inlet respectively, valves correspondingly matched and installed on the liquid inlet pipe and the liquid outlet pipe, a pump body correspondingly matched with the liquid inlet pipe provided in the liquid supply tank, a control module provided on the detection table, and the control module forms an electrical signal control cooperation with the valve body and the pump body.

[0015] An observation method for an anti-reflection coated glass color difference observation device is characterized by comprising the following steps: 1) Place the anti-reflection coated glass to be observed flat on the cushion layer; 2) Inject liquid into the tank body and submerge the cushion layer by a certain depth so that the liquid completely submerges the lower surface of the anti-reflection coated glass; 3) According to the thickness of the anti-reflection coated glass to be observed, control the liquid level to rise or fall to a suitable liquid level through the liquid level control assembly; 4) Conduct color difference observation.

[0016] On the basis of the above steps, the following further technical solutions may also be available:

[0017] After step 3) is completed, check whether there are bubbles below the anti-reflection coated glass. If there are bubbles, start the liquid flow pushing assembly to make the liquid flow, and then push out the bubbles below the anti-reflection coated glass.

[0018] The suitable liquid level is 1.5 mm above the bottom surface of the anti-reflection coated glass.

[0019] Advantages of the invention:

[0020] The structure of the present invention is simple and convenient to use, and can accurately and quickly observe the subtle color difference problems on the surface of low-color-difference coated glass. Description of the drawings: Figure 1 is the top view of the present invention;

[0022] Figure 2 is the structural schematic diagram of Embodiment 1 of the present invention;

[0023] Figure 3 is Figure 2 the enlarged view in the direction of A in

[0024] Figure 4 is the structural schematic diagram of Embodiment 2

[0025] Figure 5 It is a schematic structural diagram of Embodiment 3. Specific implementation manner:

[0027] Embodiment 1:

[0028] As Figures 1 - 3 shown, an anti-reflection coated glass color difference observation device includes a detection table 1. The detection table 1 includes a rectangular trough 1a. A group of support legs 1b are connected to the bottom of the trough 1a, and the lower ends of the support legs 1b are in contact with the ground.

[0029] A group of vertically distributed support columns 3 are evenly distributed on the bottom surface of the trough 1a. The group of support columns 3 are distributed in a matrix. A cushion layer 3a made of rubber is connected to the top of the support columns 3. A full black coating is provided on the inner wall of the trough 1a and the outer surface of the support columns 3, and the cushion layer 3a is also black.

[0030] A group of liquid flow pushing components 4 are installed on the length side wall and width side wall of the trough 1a on one side, so that the group of liquid flow pushing components 4 are distributed in an L shape on the side wall of the trough 1a. The liquid flow pushing component 4 includes a group of mounting grooves 4a distributed on the length side wall and width side wall of the trough 1a on one side. A rotating shaft 4b is inserted through each mounting groove. A paddle 4c is connected to one end of the rotating shaft 4b, and the other end of the rotating shaft 4b extends out of the trough 1a and is connected and matched with a motor 4d installed on the outer wall. The length of the mounting groove 4a is less than the height of the support column 3 to ensure that the paddle 4c is located below the liquid level.

[0031] A liquid level control component 2 is installed on the outer wall of the trough 1a. The liquid level control component 2 includes a vertically distributed slide rail 2a installed on the outer wall of the trough 1a. A corresponding slider 2b is installed on the slide rail 2a. A locking pin 2c corresponding to the slide rail 2a is installed on the slider 2b. A horizontally extending support rod 2d is connected to the slider 2b.

[0032] An overflow port 2e is provided on the side wall of the trough 1a. An overflow pipe 2f is provided outside the trough 1a. The overflow pipe 2f includes a corrugated pipe section a that can be stretched and deformed and a straight pipe section b of a rigid pipe body. The overflow port 2e is communicated with the corrugated pipe section a, and the support rod 2d is axially connected to the straight pipe section b.

[0033] A scale (not shown in the figure) corresponding to the slider 2b is adhered to the side wall of the slide rail 2a on one side.

[0034] An observation method of an anti-reflection coated glass color difference observation device includes the following steps: 1) Place the anti-reflection coated glass to be observed flat on the cushion layer.

[0035] 2) Inject a saturated sodium chloride solution into the tank so that the sodium chloride solution completely submerges the lower surface of the anti-reflection coated glass.

[0036] 3) According to the category (thickness) of the anti-reflection coated glass 5, adjust the height of the slider in the liquid level control component, and then adjust the height of the straight pipe section to drain the excess sodium chloride solution, so that the liquid level of the saturated sodium chloride solution submerges the bottom surface of the anti-reflection coated glass 5 by 1.5 mm.

[0037] Check whether there are bubbles under the anti-reflection coated glass. If there are bubbles, according to their positions, turn on the liquid flow pushing components at the corresponding positions to drive the saturated sodium chloride solution to flow and push the bubbles out from under the anti-reflection coated glass.

[0038] 4) Color difference observation can be carried out with the naked eye.

[0039] Example 2:

[0040] As Figure 4 shown, an anti-reflection coated glass color difference observation device includes a detection table 1. The detection table 1 includes a rectangular tank 1a. A group of support legs 1b are connected to the bottom of the tank 1a, and the lower ends of the support legs 1b are in contact with the ground.

[0041] A group of vertically distributed support columns 3 are evenly arranged on the bottom surface of the tank 1a. The group of support columns 3 are arranged in a matrix. A cushion layer 3a made of rubber is connected to the top of the support columns 3. A full black coating is provided on the inner wall of the tank 1a and the outer surface of the support columns 3, and the cushion layer 3a is also black.

[0042] A group of liquid flow pushing components 4 are installed on one side length wall and width wall of the tank 1a, so that the group of liquid flow pushing components 4 are distributed in an L shape on the tank wall of the tank 1a. The liquid flow pushing component 4 includes a group of installation grooves 4a distributed on one side length wall and width wall of the tank 1a. A rotating shaft 4b is inserted through each installation groove. A paddle 4c is connected to one end of the rotating shaft 4b, and the other end of the rotating shaft 4b extends out of the tank 1a and is connected and matched with a motor 4d installed on the outer wall. The length of the installation groove 4a is less than the height of the support column 3 to ensure that the paddle 4c is located below the liquid level.

[0043] A liquid level control component 2 is installed on the tank 1a. The liquid level control component 2 includes a liquid discharge port 1d and a liquid inlet port 1e provided on the bottom of the tank 1a. A liquid supply tank 2h is provided below the detection table 1. A liquid inlet pipe 2g and a liquid outlet pipe 2j are respectively connected to the liquid discharge port 1d and the liquid inlet port 1e in a corresponding matching manner. Valves 2k are installed on the liquid inlet pipe 2g and the liquid outlet pipe 2j in a corresponding matching manner. A pump body 2y corresponding to and communicating with the liquid inlet pipe 2g is placed in the liquid supply tank 2h, and one end of the liquid outlet pipe 2j also extends into the liquid supply tank 2h.

[0044] A control module is provided on the detection table 1, and the control module forms an electrical signal control cooperation with the valve body 2k and the pump body 2y.

[0045] An observation method of an anti-reflection coated glass color difference observation device includes the following steps: 1) Place the anti-reflection coated glass to be observed flat on the cushion layer.

[0046] 2) Inject saturated sodium chloride solution into the tank so that the sodium chloride solution completely submerges the lower surface of the reflection coated glass.

[0047] 3) According to the category (thickness) of the anti-reflection coated glass 5, input the thickness of the anti-reflection coated glass 5 into the control module in the liquid level control component, and then the control module controls the opening or closing of the valve body 2k on the liquid inlet pipe 2g and the liquid outlet pipe 2j according to the data, and controls the rise or fall of the liquid level of the saturated sodium chloride solution until the liquid level of the saturated sodium chloride solution exceeds the bottom surface of the anti-reflection coated glass 5 by 1.5 mm. Then close and lock the valve body 2k.

[0048] Check whether there are bubbles under the anti-reflection coated glass. If there are bubbles, control the valve body 2k to open and the pump body 2y to start through the control module, and keep the flow rates of the liquid inlet pipe 2g and the liquid outlet pipe 2j consistent. In this way, the saturated sodium chloride solution can be driven to flow under the condition of maintaining the height of the stable saturated sodium chloride solution, so as to bring the bubbles out from under the anti-reflection coated glass and avoid the influence of bubbles on the color difference observation. (Since the area of the anti-reflection coated glass is large, the flowing saturated sodium chloride solution under the action of its own weight will not affect the stability of the anti-reflection coated glass).

[0049] 4) The color difference can be observed with the naked eye.

[0050] Embodiment 3:

[0051] As Figure 3 and Figure 5 shown, the difference between Embodiment 3 and Embodiment 1 is that: the liquid flow pushing component 4 is not installed on the tank wall of the tank 1a, and other structures are the same as those in Embodiment 1; the observation method of the anti-reflection coated glass color difference observation device also does not have the usage steps of the liquid flow pushing component 4 compared with Embodiment 1, and other steps are the same. So it will not be elaborated here.

[0052] Principle of use:

[0053] Since the inside of the tank is completely black, the bottom surface of the anti-reflection coated glass is in seamless contact with the saturated sodium chloride solution. Because light reflection also occurs at different interfaces, and the refractive indices of the two media, saturated sodium chloride and glass, are basically the same, light passing through their interface does not undergo reflection, which further reduces the interference of reflected light, allowing the reflected light observed by the naked eye to come mainly from the light reflection on the surface of the anti-reflection coated glass. This is beneficial for distinguishing the color difference on the surface of the anti-reflection coated glass.

[0054] Five groups of experiments were conducted on the selection of the immersion height in the liquid surface, and the data are as follows:

[0055] Immersion liquid level height (mm) 0.5 1.0 1.5 2.0 2.5 Observe color difference effect Invalid Invalid Valid Valid Valid

[0056] Considering that the current thickness of photovoltaic glass can reach 3.2 mm, in order to prevent the water level from fluctuating and covering the glass during the detection of thin glass, the optimal immersion height of the bottom surface of the glass in the liquid surface is selected as 1.5 mm.

[0057] In Examples 1-3, the depth of the tank 1a is 100 mm, the height of the support column is 50 mm, and the thickness of the cushion layer 3a is 6 mm.

Claims

1. An anti-reflection coated glass color difference observation device, which comprises a detection table (1), and is characterized in that: The detection table (1) includes a tank body (1a), a set of support legs (1b) are connected to the bottom of the tank body (1a), a set of support columns (3) are evenly distributed in the tank body (1a), a liquid level control component (2) for controlling the rise and fall of the liquid level is communicated with the tank body (1a), a full black coating is provided on the inner wall of the tank body (1a) and the outer surface of the support column (3), and a liquid is provided in the tank body (1a); a cushion layer (3a) made of rubber or silica gel is connected to the top of the support column (3); a set of liquid flow pushing components (4) are installed on one side length wall and width wall of the tank body (1a), which includes an installation groove (4a) provided on the inner wall of the tank body (1a), a rotating shaft (4b) is penetrated through the installation groove, a paddle (4c) is connected to one end of the rotating shaft (4b), and the other end of the rotating shaft (4b) is connected and cooperated with a motor on the outer wall of the installation outer tank body (1a); the liquid level is controlled by the liquid level control component (2) to rise and fall to a proper liquid level, and the proper liquid level is 1.5 mm higher than the bottom surface of the anti-reflection coated glass (5).

2. The anti-reflection coated glass color difference observation device according to claim 1, characterized in that: The liquid level control component (2) includes a slide rail (2a) provided on the tank wall of the tank body (1a), a corresponding slider (2b) is provided on the slide rail (2a), a locking pin (2c) is provided on the slider (2b), an overflow port (2e) is provided on the tank body (1a), an overflow pipe (2f) is connected to the overflow port (2e), a support rod (2d) is connected to the slider (2b), and the support rod (2d) is connected to the overflow pipe (2f).

3. The anti-reflection coated glass color difference observation device according to claim 2, characterized in that: The overflow pipe (2f) includes a corrugated pipe section (a) and a straight pipe section (b), the overflow port (2e) is communicated with the corrugated pipe section (a), and the support rod (2d) is connected to the straight pipe section (b).

4. The anti-reflection coated glass color difference observation device according to claim 1, characterized in that: The liquid level control component (2) includes a liquid discharge port (1d) and a liquid inlet (1e) provided on the tank body (1a), a liquid supply tank (2h) is provided below the detection table (1), a corresponding liquid inlet pipe (2g) and a liquid outlet pipe (2j) are respectively connected to the liquid discharge port (1d) and the liquid inlet (1e), corresponding valves (2k) are installed on the liquid inlet pipe (2g) and the liquid outlet pipe (2j), a pump body (2y) corresponding to the liquid inlet pipe (2g) is provided in the liquid supply tank (2h), a control module is provided on the detection table (1), and the control module forms an electrical signal control cooperation with the valve body (2k) and the pump body (2y).

5. The observation method of an anti-reflection coated glass color difference observation device described in claim 1, characterized in that It includes the following steps: 1) Place the anti-reflection coated glass (5) to be observed flat on the cushion layer (3a); 2) Inject the liquid into the tank body and submerge the cushion layer to a certain depth so that the liquid completely submerges the lower surface of the anti-reflection coated glass (5); 3) According to the thickness of the anti-reflection coated glass (5) to be observed, control the liquid level to rise and fall to a proper liquid level through the liquid level control component (2); 4) Conduct color difference observation.

6. The observation method of an antireflection coating glass color difference observation device according to claim 5, characterized in that: After step 3) is completed, check whether there are bubbles below the reflection coated glass (5). If there are bubbles, start the liquid flow pushing component (4) to make the liquid flow, and then push out the bubbles below the anti-reflection coated glass (5).

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