High-temperature cloth for large electric heating laminating machine

Abstract

The utility model relates to high-temperature cloth for a large-scale electric heating laminating machine, belongs to the technical field of photovoltaic panel manufacturing, and solves the problems in the prior art that photovoltaic modules enter the large-scale electric heating laminating machine in sequence, the heating rate is not uniform, and the photovoltaic modules entering the laminating machine first are easy to generate cracks, offset in series and the like. The high-temperature cloth comprises a first edge part, a second edge part and a bearing part, two ends of the bearing part are respectively connected with the first edge part and the second edge part, and the bearing part is used for bearing a photovoltaic module during lamination processing; the thickness of the bearing part is larger than the thickness of the first edge part and the thickness of the second edge part, and the heat transfer efficiency of the bearing part is smaller than that of the first edge part and the second edge part, so that the heating rate of the photovoltaic module in the process of entering the large-scale electric heating laminating machine is uniform, and the photovoltaic module firstly entering the laminating machine is not prone to generating the defects such as splitting and displacement.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic panel manufacturing, in particular to a high-temperature cloth used for a large electric heating laminator. Background Art

[0002] As the natural environment deteriorates, more environmentally friendly electric heating laminators are gradually replacing oil heating laminators and entering the historical stage.

[0003] The electric heating laminator has a fast heating rate, but poor heating uniformity.

[0004] During the production process, the first few photovoltaic modules entering the large electric heating laminator are heated quickly, which can easily lead to defects such as cracks and string spacing deviation. The solution is to increase the thickness of the high-temperature cloth to improve the thermal insulation performance of the high-temperature cloth, but this will cause the cavity of the large electric heating laminator to be poorly sealed. Simply increasing or decreasing the heating time of the photovoltaic modules in the large electric heating laminator cannot solve the above problems.

[0005] Therefore, there is an urgent need for a high-temperature cloth for large electric heating laminators to solve the problem that photovoltaic modules enter the large electric heating laminators one after another, the heating rate is uneven, and the photovoltaic modules that enter the laminator first are prone to defects such as cracks and string spacing deviation. Utility Model Content

[0006] In view of the above analysis, an embodiment of the utility model aims to provide a high-temperature cloth for a large electric heating laminator, so as to solve the problems in the prior art that photovoltaic modules enter the large electric heating laminator one after another, the heating rate is uneven, and the photovoltaic modules that enter the laminator first are prone to cracks, string distance deviation and other defects.

[0007] The purpose of this utility model is mainly achieved through the following technical solutions:

[0008] A high temperature cloth for a large electric heating laminator, comprising a first side portion, a second side portion and a bearing portion, wherein two ends of the bearing portion are respectively connected to the first side portion and the second side portion, and the bearing portion is used to bear a photovoltaic module during lamination processing;

[0009] The thickness of the bearing portion is greater than the thickness of the first side portion, and greater than the thickness of the second side portion.

[0010] Furthermore, the first side portion and the second side portion have the same thickness.

[0011] Furthermore, the thickness of the first side portion and the second side portion are both 0.5 mm-0.6 mm.

[0012] Furthermore, the thickness of the first side portion and the second side portion are both 0.5 mm-0.55 mm.

[0013] Further, the difference between the thickness of the bearing portion and the thickness of the first side portion is 0.1 mm-0.3 mm, and the difference between the thickness of the bearing portion and the thickness of the second side portion is 0.1 mm-0.3 mm.

[0014] Furthermore, the bearing portion has a thickness of 0.6 mm to 0.8 mm.

[0015] Furthermore, the bearing portion has a thickness of 0.7 mm to 0.8 mm.

[0016] Furthermore, it also includes a first cushion layer and a second cushion layer, the first cushion layer is arranged on the first edge portion, and the second cushion layer is arranged on the second edge portion, the first cushion layer and the second cushion layer are used to thicken the first edge portion and the second edge portion respectively, and the sum of the thickness of the first cushion layer and the first edge portion and the sum of the thickness of the second cushion layer and the second edge portion are both smaller than the thickness of the bearing portion.

[0017] Furthermore, the first cushion layer and the second cushion layer have the same thickness, both of which are 0.1 mm-0.2 mm.

[0018] Furthermore, the first cushion layer and the second cushion layer have the same thickness, both of which are 0.1 mm-0.15 mm.

[0019] Furthermore, it also includes a first pulling part and a second pulling part, the first pulling part is arranged on the first side part, and the second pulling part is arranged on the second side part; the first pulling part and the second pulling part are used to be connected to the pull rod of the large electric heating laminator.

[0020] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0021] (1) The thickness of the bearing part of the high-temperature cloth of the utility model is greater than the thickness of the first side part and the second side part, so the heat transfer efficiency of the bearing part is lower than that of the first side part and the second side part, thereby ensuring that the photovoltaic module is heated at a uniform rate during the process of entering the large electric heating laminator, and the photovoltaic module that enters the laminator first is not prone to defects such as cracks and string spacing deviation;

[0022] (2) The first side and the second side of the utility model have the same thickness, and can be manufactured using high-temperature cloth of the same specification, thereby simplifying the production process; the first side and the second side are relatively thin, and the gap at the flange after the laminating machine is closed is small, thereby ensuring the airtightness of the laminating process;

[0023] (3) A first cushion layer and a second cushion layer with relatively thin thickness are respectively arranged at the first side and the second side of the utility model. When the laminator is closed and vacuumed, the first cushion layer and the second cushion layer act as sealing gaskets to further ensure the airtightness at the flange of the laminator.

[0024] In the present invention, the above-mentioned technical solutions can also be combined with each other to achieve more preferred combination solutions. Other features and advantages of the present invention will be described in the following content, and some advantages can be obvious from the description or understood by implementing the present invention. The purpose and other advantages of the present invention can be achieved and obtained through the contents specifically pointed out in the text and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are only used for the purpose of illustrating specific embodiments and are not to be considered as limiting the present invention. In the entire drawings, the same reference symbols represent the same components.

[0026] Figure 1 This is a schematic diagram of the longitudinal section structure of the high temperature cloth of the utility model;

[0027] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of area A in the middle.

[0028] Reference numerals:

[0029] 1-first side portion; 2-second side portion; 3-bearing portion; 4-first pulling portion; 5-second pulling portion; 6-first cushion layer; 7-second cushion layer; 8-buffer portion; 9-third pulling portion. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0031] During the production of photovoltaic modules, a laminator is required to heat the photovoltaic modules in a closed manner. The heating temperature is generally controlled at 140℃-160℃. The high-temperature cloth is used to carry the photovoltaic modules and transport the photovoltaic modules in and out of the laminator. The large electric heating laminator uses electric heating to vacuum heat-press the interconnected photovoltaic cell strings and packaging materials. It can realize fully automatic loading and unloading and has an effective lamination area of ​​more than 2.7m*11.5m.

[0032] A specific embodiment of the utility model is as follows Figure 1 As shown, a high-temperature cloth (hereinafter referred to as high-temperature cloth) for a large electric heating laminator is disclosed, including a first side portion 1, a second side portion 2 and a bearing portion 3, wherein the two ends of the bearing portion 3 are respectively connected to the first side portion 1 and the second side portion 2, and the bearing portion 3 is used to carry photovoltaic modules during lamination processing.

[0033] Preferably, the thickness of the bearing portion 3 is greater than the thickness of the first side portion 1 and the second side portion 2. The heat transfer efficiency of the bearing portion 3 is lower than that of the first side portion 1 and the second side portion 2, ensuring that the photovoltaic module will not be overheated and cross-linked during entering a large electric heating laminator (hereinafter referred to as a laminator).

[0034] Preferably, the first side portion 1 and the second side portion 2 have the same thickness and can be made of high-temperature cloth of the same specification, thereby simplifying the production process.

[0035] Preferably, the thickness of the first side portion 1 and the second side portion 2 are both 0.5 mm-0.6 mm, further, the thickness of the first side portion 1 and the second side portion 2 are both 0.5 mm-0.55 mm, and optimally, the thickness of the first side portion 1 and the second side portion 2 are both 0.5 mm or 0.55 mm. The first side portion 1 and the second side portion 2 of such thickness are relatively thin, and the gap at the flange after the laminating machine is closed is small, thereby ensuring the airtightness of the laminating process.

[0036] Preferably, the difference between the thickness of the bearing part 3 and the thickness of the first side part 1 is 0.1mm-0.3mm, and the difference between the thickness of the bearing part 3 and the thickness of the second side part 2 is 0.1mm-0.3mm; the thickness of the bearing part 3 is 0.6-0.8mm, preferably, the thickness of the bearing part 3 is 0.7-0.8mm, and optimally, the thickness of the bearing part 3 is 0.7mm, 0.75mm or 0.79mm. The bearing part 3 of such thickness can provide better thermal insulation performance to ensure the lamination quality of the photovoltaic module.

[0037] Preferably, the high temperature cloth of this embodiment further includes a first pulling portion 4 and a second pulling portion 5, wherein the first pulling portion 4 is arranged on the first side portion 1, and the second pulling portion 5 is arranged on the second side portion 2. The first pulling portion 4 and the second pulling portion 5 are used to be connected to the pull rod of the laminator, so that the laminator can pull the high temperature cloth of this embodiment to pull the photovoltaic module into the laminator.

[0038] Preferably, if Figure 1 and Figure 2 As shown, in order to further improve the sealing performance of the first edge 1 and the second edge 2, the high temperature cloth of this embodiment also includes a first cushion layer 6 and a second cushion layer 7, the first cushion layer 6 is arranged on the first edge 1, and the second cushion layer 7 is arranged on the second edge 2, and the sum of the thickness of the first cushion layer 6 and the first edge 1 and the sum of the thickness of the second cushion layer 7 and the second edge 2 are both less than the thickness of the bearing portion 3, and the first cushion layer 6 and the second cushion layer 7 are respectively used to thicken the first edge 1 and the second edge 2. When the laminator is closed and vacuumed, the flange of the laminator can be connected with the first cushion layer 6 and the second cushion layer 7, and the first cushion layer 6 and the second cushion layer 7 increase the airtightness at the flange of the laminator.

[0039] Preferably, the first cushion layer 6 and the second cushion layer 7 have the same thickness, both of which are 0.1 mm-0.2 mm. More preferably, the first cushion layer 6 and the second cushion layer 7 have a thickness of 0.1 mm-0.15 mm. Optimally, the first cushion layer 6 and the second cushion layer 7 have a thickness of 0.13 mm or 0.15 mm.

[0040] Preferably, both surfaces of the high-temperature cloth at the first edge 1, the second edge 2, the first cushion layer 6 and the second cushion layer 7 are smooth surfaces; the surface of the high-temperature cloth of the bearing part 3 in contact with the photovoltaic component is a smooth surface, and the other surface of the high-temperature cloth of the bearing part 3 is a non-smooth surface.

[0041] Preferably, the high temperature cloth in this embodiment is Teflon high temperature cloth.

[0042] Preferably, if Figure 1 As shown, the high temperature cloth of this embodiment further includes a buffer portion 8 and a third pulling portion 9, one end of the buffer portion 8 is connected to the second side portion 2, and the other end of the buffer portion 8 is connected to the third pulling portion 9. The third pulling portion 9 is used to connect with the pull rod of the laminator, so that the laminator can pull the high temperature cloth of this embodiment into the laminator. During use, the buffer portion 8 is used to prevent the pulling force of the laminator pull rod from being too large, causing the high temperature cloth of this embodiment to break, and plays a buffering role.

[0043] Compared with the prior art, the thickness of the bearing portion 3 of the high-temperature cloth of this embodiment is greater than the thickness of the first side 1 and the second side 2. The heat transfer efficiency of the bearing portion 3 is less than that of the first side 1 and the second side 2, ensuring that the photovoltaic module will not be overheated and cross-linked during entry into the large electric heating laminator. The thickness of the first side 1 and the second side 2 is the same, and high-temperature cloth of the same specification can be selected for manufacturing, simplifying the production process. The thickness of the first side 1 and the second side 2 is relatively thin, and the gap at the flange is small after the laminator is closed, ensuring the airtightness of the lamination process. When the laminator is closed and vacuumed, the flange of the laminator can be connected to the first cushion layer 6 and the second cushion layer 7, and the first cushion layer 6 and the second cushion layer 7 ensure the airtightness at the flange of the laminator.

[0044] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature cloth for a large electric heating laminator, characterized in that: It comprises a first side portion (1), a second side portion (2) and a bearing portion (3), wherein two ends of the bearing portion (3) are respectively connected to the first side portion (1) and the second side portion (2), and the bearing portion (3) is used to bear the photovoltaic module during lamination processing; The thickness of the bearing portion (3) is greater than the thickness of the first side portion (1), and greater than the thickness of the second side portion (2).

2. The high temperature cloth for large electric heating laminator according to claim 1, characterized in that: The first side portion (1) and the second side portion (2) have the same thickness.

3. The high temperature cloth for large electric heating laminator according to claim 2, characterized in that: The thickness of the first side portion (1) and the second side portion (2) are both 0.5 mm to 0.6 mm.

4. The high temperature cloth for large electric heating laminator according to claim 2, characterized in that: The thickness of the first side portion (1) and the second side portion (2) are both 0.5 mm to 0.55 mm.

5. The high temperature cloth for large electric heating laminator according to any one of claims 1 to 4, characterized in that: The difference between the thickness of the bearing portion (3) and the thickness of the first side portion (1) is 0.1 mm-0.3 mm, and the difference between the thickness of the bearing portion (3) and the thickness of the second side portion (2) is 0.1 mm-0.3 mm.

6. The high temperature cloth for large electric heating laminator according to claim 5, characterized in that: The bearing portion (3) has a thickness of 0.6 mm to 0.8 mm.

7. The high temperature cloth for large electric heating laminator according to claim 5, characterized in that: The bearing portion (3) has a thickness of 0.7 mm to 0.8 mm.

8. The high temperature cloth for large electric heating laminator according to any one of claims 1 to 4, characterized in that: The invention also comprises a first cushion layer (6) and a second cushion layer (7), wherein the first cushion layer (6) is arranged on the first edge portion (1), and the second cushion layer (7) is arranged on the second edge portion (2), and the first cushion layer (6) and the second cushion layer (7) are used to thicken the first edge portion (1) and the second edge portion (2), respectively, and the sum of the thickness of the first cushion layer (6) and the first edge portion (1) and the sum of the thickness of the second cushion layer (7) and the second edge portion (2) are both less than the thickness of the bearing portion (3).

9. The high temperature cloth for large electric heating laminator according to claim 8, characterized in that: The first cushion layer (6) and the second cushion layer (7) have the same thickness, both of which are 0.1 mm-0.2 mm.

10. The high temperature cloth for large electric heating laminator according to claim 8, characterized in that: The first cushion layer (6) and the second cushion layer (7) have the same thickness, both of which are 0.1 mm-0.15 mm.

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