A photovoltaic module lamination system and lamination method

Abstract

This application provides a photovoltaic module lamination system and lamination method, relating to the field of photovoltaic technology, including: a lamination feed chamber, a lamination chamber, and a sealed electric injection chamber; the sealed electric injection chamber is used to keep the high-temperature electric injection process warm, and the material of the sealed electric injection chamber is metal, or, the material of the sealed electric injection chamber is organic transparent glass, or, the material of the sealed electric injection chamber is metal in some areas and organic transparent glass in other areas; the sealed electric injection chamber includes a roller or Ferris wheel stacking structure, and the sealed electric injection chamber includes an air cooling device, an exhaust device, or a water cooling platform or an external water cooling chamber. In this way, the photovoltaic module can be electrically injected under slow cooling conditions, achieving better power gain, reducing power attenuation caused by rapid cooling, thereby improving the power generation of the photovoltaic module.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and more specifically, to a photovoltaic module lamination system and lamination method. Background Technology

[0002] Photovoltaic modules are devices that convert light energy into electrical energy. They have a multi-layered structure, and during manufacturing, a laminator is used to laminate the multi-layered photovoltaic modules at a certain temperature. The degradation mechanism is generally believed to be due to the presence of recombination centers in the silicon wafer. Under the condition of additional, non-equilibrium carrier injection, recombination occurs in the cell or module, leading to a reduction in minority carrier lifetime and diffusion length, ultimately causing a decline in the performance of the photovoltaic module.

[0003] To improve the photoelectric performance of photovoltaic modules, electrical injection is usually performed on them before they leave the factory. Electrical injection refers to placing the photovoltaic module in an electrical injection device and applying a forward bias voltage to the photovoltaic module at a certain temperature to form carrier injection. Electrical injection can reduce light-induced degradation of photovoltaic modules, repair defects, and improve the power generation of photovoltaic modules. Summary of the Invention

[0004] In view of this, this application provides a photovoltaic module lamination system and lamination method to improve electrical injection gain, reduce power decay caused by rapid cooling, and thereby improve the power generation of photovoltaic modules.

[0005] In a first aspect, this application provides a photovoltaic module lamination system, comprising: a lamination feed chamber, a lamination chamber, and a sealed electric injection chamber;

[0006] The sealed electric injection chamber is used to keep the temperature during the high-temperature electric injection process. The discharge end of the lamination feed chamber is connected to the feed end of the lamination chamber, and the feed end of the sealed electric injection chamber is connected to the discharge end of the lamination chamber.

[0007] The sealed electro-injection cavity is made of metal, or the sealed electro-injection cavity is made of organic transparent glass, or a portion of the sealed electro-injection cavity is made of metal and a portion of the cavity is made of organic transparent glass.

[0008] Optionally, the sealed electric injection cavity includes multiple rollers for carrying the laminate, and the multiple rollers are placed vertically along the direction from the feed end of the sealed electric injection cavity to the discharge end of the sealed electric injection cavity;

[0009] The sealed electro-injection cavity also includes a plurality of alignment cylinders. In a direction perpendicular to the extension direction of the roller, the plurality of alignment cylinders are equally spaced along both ends of the roller. The alignment cylinders are used to align and position the laminate.

[0010] The sealed electro-injection cavity further includes multiple three-dimensional guide rails and multiple ejector pins. Each three-dimensional guide rail is connected to a corresponding ejector pin. The ejector pin is externally connected to a constant current source. The three-dimensional guide rails are used to control the ejector pins to electro-inject into the laminate. A spring is also provided between the three-dimensional guide rails and the ejector pins. The spring is used to buffer the movement of the ejector pins relative to the laminate.

[0011] Optionally, the sealed electro-injection chamber further includes an air-cooling device and an exhaust device, which are used to cool the laminate after electro-injection; the air-cooling device is turned off and the exhaust device is turned off when the laminate is electro-injected; the air-cooling device is turned on and the exhaust device is turned on simultaneously after the electro-injection of the laminate is completed.

[0012] Optionally, the photovoltaic module lamination system further includes a water-cooled cavity, wherein the outlet end of the sealed electro-injection cavity is connected to the inlet end of the water-cooled cavity, and the water-cooled cavity is used to cool the laminated part after electro-injection.

[0013] Optionally, the sealed electro-injection cavity includes a Ferris wheel stack structure, which includes a rotating shaft, a multi-layer stack platform, and multiple fixed rods. The stack platform is connected to each of the fixed rods in a one-to-one correspondence, and the stack platform rotates along the rotating shaft with the length of the fixed rod extending in the direction of extension as the radius.

[0014] Each of the stacking platforms is equipped with a centering cylinder, which is used to center and position the laminate.

[0015] The sealed electro-injection cavity also includes multiple three-dimensional guide rails and ejector pins. Each three-dimensional guide rail is connected to an ejector pin, and the ejector pin is externally connected to a constant current source. The three-dimensional guide rails are used to control the ejector pins to electro-inject into the laminate on the stack platform. A spring is also provided between the three-dimensional guide rails and the ejector pins, and the spring is used to buffer the movement of the ejector pins relative to the laminate.

[0016] Optionally, the sealed electro-injection cavity further includes a water-cooled platform, which is used to receive the laminate after it has been transferred and electro-injected through the Ferris wheel stack structure, and to cool the electro-injected laminate.

[0017] Optionally, the sealed electro-injection cavity further includes a temperature detection device, which is used to collect the temperature of the laminate to be electro-injected. When the temperature of the laminate to be electro-injected is not lower than 100°C, electro-injection is performed on the laminate to be electro-injected.

[0018] Secondly, this application also provides a photovoltaic module lamination method, which is applied to the photovoltaic module lamination system described in the first aspect, including:

[0019] After sorting, interconnecting, and stacking the batteries to form pre-laminated photovoltaic modules, the pre-laminated photovoltaic modules are placed on the loading platform of the lamination feeding chamber.

[0020] The pre-laminated photovoltaic module enters the lamination chamber from the outlet end of the lamination feed chamber and is laminated in the lamination chamber.

[0021] The laminated photovoltaic module enters the inlet of the sealed electric injection chamber from the outlet end of the lamination chamber; the temperature detection device in the sealed electric injection chamber collects the temperature of the laminate to be injected; when the temperature of the laminate to be injected is not lower than 100℃, electric injection is performed on the laminate to be injected in the sealed electric injection chamber.

[0022] Cool the laminated part after electro-injection.

[0023] Optionally, the step of electro-injecting the laminate to be electro-injected in the sealed electro-injection cavity includes: the laminate to be electro-injected moving on a roller along the inlet end of the sealed electro-injection cavity toward the outlet end of the sealed electro-injection cavity, and the alignment cylinder aligning and positioning the laminate to be electro-injected.

[0024] A three-way guide rail controls the ejector pin to contact the laminator to be electrically injected. A spring is also provided between the three-way guide rail and the ejector pin. The spring buffers the relative movement of the ejector pin with respect to the laminator to be electrically injected. The laminator to be electrically injected is then completed.

[0025] Alternatively, the stack platform in the Ferris wheel stack structure inside the sealed electro-injection cavity moves down to receive the laminate to be electro-injected. The aligning cylinders around the stack platform align and position the laminate to be electro-injected. The Ferris wheel stack structure rotates continuously to complete the continuous reception of the laminate to be electro-injected.

[0026] The three-way guide rail is mechanically positioned with the stack platform. The three-way guide rail controls the ejector pin to contact the laminator to be electrically injected. A spring is also provided between the three-way guide rail and the ejector pin. The spring buffers the relative movement of the ejector pin with respect to the laminator to be electrically injected. The laminator to be electrically injected is then completed.

[0027] Optionally, the cooling of the laminate after electro-injection includes: after the laminate to be injected into the sealed electro-injection cavity has completed electro-injection, the air-cooling device and the exhaust device in the sealed electro-injection cavity are turned on to cool the laminate after electro-injection.

[0028] Alternatively, the laminated part that has undergone electro-injection can be transported from the outlet end of the sealed electro-injection chamber to the inlet end of the water-cooling chamber for cooling.

[0029] Alternatively, after the laminate to be injected with electricity is completed on the Ferris wheel stack structure in the sealed electric injection cavity, the Ferris wheel stack structure will transfer the laminate to the water-cooling platform in the sealed electric injection cavity, and the laminate will be cooled on the water-cooling platform after the electric injection is completed.

[0030] Compared with the prior art, the photovoltaic module lamination system and lamination method provided in this application achieve at least the following beneficial effects:

[0031] 1. By setting a sealed electrical injection chamber in the photovoltaic module lamination system, the photovoltaic module can be electrically injected under slow cooling conditions, achieving better power gain and reducing power decay caused by rapid cooling, thereby improving the power generation of the photovoltaic module.

[0032] 2. Metal materials can give the sealed electro-injection cavity a certain strength, while organic transparent glass materials can make the electro-injection process of the photovoltaic module inside the sealed electro-injection cavity visible, which is convenient for monitoring the electro-injection process and handling any possible faults in a timely manner.

[0033] 3. Roller or Ferris wheel stacking structures can transport laminated components, which can reduce heat dissipation from contact between laminated components and facilitate mechanical positioning between the three-way guide rails and the stacking platform, eliminating the need for additional visual positioning devices.

[0034] 4. When the sealed electro-injection cavity can perform electro-injection on the laminated parts in a slow cooling environment and also cool down the laminated parts after electro-injection, it can effectively reduce the area occupied by the cooling structure in the workshop and improve the space utilization rate.

[0035] Of course, any product implementing this application does not necessarily need to achieve all of the technical effects described above at the same time.

[0036] Other features and advantages of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0037] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the present application and, together with their description, serve to explain the principles of the present application.

[0038] Figure 1 The diagram shown is a schematic diagram of a photovoltaic module lamination system provided in an embodiment of this application;

[0039] Figure 2 The diagram shown is a schematic of a sealed electro-injection cavity in a photovoltaic module lamination system provided in an embodiment of this application;

[0040] Figure 3 The diagram shown is a schematic of a three-way guide rail in a sealed electro-injection cavity provided in an embodiment of this application;

[0041] Figure 4 The diagram shown is a schematic diagram of a Ferris wheel stack structure in a sealed electro-injection cavity provided in an embodiment of this application. Detailed Implementation

[0042] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the present application.

[0043] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0044] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0045] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0046] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0047] Figure 1 The diagram shown is a schematic of a photovoltaic module lamination system provided in an embodiment of this application. Figure 2 The diagram shown is a schematic of a sealed electro-injection cavity in a photovoltaic module lamination system according to an embodiment of this application. Figure 3 The diagram shown is a schematic of a three-way guide rail in a sealed electro-injection cavity according to an embodiment of this application. Figure 4 The diagram shown is a schematic representation of a Ferris wheel stack structure in a sealed electro-injection cavity according to an embodiment of this application. Please refer to it. Figures 1 to 4 This application provides a photovoltaic module lamination system 00, including: a lamination feed chamber 01, a lamination chamber 02, and a sealed electric injection chamber 03;

[0048] The sealed electric injection chamber 03 is used to keep the temperature of the high-temperature electric injection process. The discharge end 012 of the lamination feed chamber 01 is connected to the feed end 021 of the lamination chamber 02, and the feed end 031 of the sealed electric injection chamber 03 is connected to the discharge end 022 of the lamination chamber 02.

[0049] The sealed electric injection cavity 03 is made of metal, or the sealed electric injection cavity 03 is made of organic transparent glass, or a portion of the sealed electric injection cavity 03 is made of metal and a portion of the sealed electric injection cavity 03 is made of organic transparent glass.

[0050] Specifically, in a photovoltaic module lamination system 00 provided in this application embodiment, pre-laminated photovoltaic modules sequentially enter a lamination feed chamber 01, a lamination chamber 02, and a sealed electric injection chamber 03 for lamination and electric injection. The discharge end 012 of the lamination feed chamber 01 is connected to the feed end 021 of the lamination chamber 02, and the discharge end 022 of the lamination chamber 02 is connected to the feed end 031 of the sealed electric injection chamber 03. The sealed electric injection chamber 03 includes a shell 033, the overall outline of which is a cuboid. The shell 033 includes an opening (not shown in the figure), which is located on two opposite sides of the shell 033. The opening is used for a conveying device to pass through. The conveying device is used to transport the laminated photovoltaic modules that have not yet been electric injected to the sealed electric injection chamber 03. The conveying device is also used to transport the electric injected photovoltaic modules to the next process.

[0051] The outer shell 033 of the sealed electric injection cavity 03 is made entirely of metal, or entirely of organic transparent glass, or a portion of the outer shell 033 is metal and another portion is organic transparent glass. In one embodiment of this application, the top of the cuboid-shaped outer shell 033 is made of metal and the four sides are made of organic transparent glass. In another embodiment of this application, one side of the cuboid-shaped outer shell 033 is made of organic transparent glass and the rest is made of metal. In yet another embodiment of this application, any two sides of the cuboid-shaped outer shell 033 are made of organic transparent glass and the rest is made of metal. It should be noted that the specific area ratio of the metal area to the organic transparent glass area in the outer shell of the sealed electric injection cavity 03 can be set according to actual production needs, and will not be elaborated here.

[0052] Thus, by setting a sealed electric injection cavity 03 in the photovoltaic module lamination system 00, the photovoltaic module can be electrically injected under slow cooling conditions, achieving better power gain and reducing power decay caused by rapid cooling, thereby improving the power generation of the photovoltaic module. The metal material can give the sealed electric injection cavity 03 a certain strength, and the organic transparent glass material can make the electric injection process of the photovoltaic module in the sealed electric injection cavity 03 visible, which is convenient for monitoring the electric injection process and handling any possible faults in a timely manner.

[0053] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination system 00, in which a sealed electric injection cavity 03 includes multiple rollers 08, which are used to support the laminate 10. The multiple rollers 08 are placed vertically along the direction from the feed end 031 of the sealed electric injection cavity 03 to the discharge end 032 of the sealed electric injection cavity 03.

[0054] The sealed electric injection cavity 03 also includes a plurality of straightening cylinders 09. In a direction perpendicular to the extension direction of the roller 08, the plurality of straightening cylinders 09 are equally spaced along both ends of the roller 08. The straightening cylinders 09 are used to straighten and position the laminate 10.

[0055] The sealed electro-injection cavity 03 also includes multiple three-dimensional guide rails 06 and multiple ejector pins 065. Each three-dimensional guide rail 06 is connected to two ejector pins 065. The ejector pins 065 are externally connected to a constant current source. The three-dimensional guide rails 06 are used to control the ejector pins 065 to inject electricity into the laminate 10. A spring 064 is also provided between the three-dimensional guide rails 06 and the ejector pins 065. The spring 064 is used to buffer the movement of the ejector pins 065 relative to the laminate 10.

[0056] Specifically, the sealed electric injection cavity 03 includes multiple rollers 08. Along the direction from the feed end 031 to the discharge end 032 of the sealed electric injection cavity 03, the multiple rollers 08 are placed parallel to each other at the bottom of the sealed electric injection cavity 03, and the extension direction of the rollers 08 is perpendicular to the direction from the feed end 031 to the discharge end 032 of the sealed electric injection cavity 03. In the direction perpendicular to the extension direction of the rollers 08, multiple straightening cylinders 09 are arranged at equal intervals at both ends of the rollers 08. Further, the straightening cylinders 09 can also be located in the middle of the rollers 08, which can be set as needed. The rollers 08 are used to carry and transport the laminate 10, and the straightening cylinders 09 located on both sides and in the middle of the rollers 08 are used to straighten and position the laminate 10.

[0057] The sealed electro-injection cavity 03 also includes multiple three-way guide rails 06. Each three-way guide rail 06 includes an X-axis movable clamp 061, a Y-axis movable cylinder 062, and a Z-axis movable cylinder 063. The X-axis movable clamp 061 is located on a crossbeam 05 within the sealed electro-injection cavity 03 and can move relative to the crossbeam 05 along its extension direction. One end of the Y-axis movable cylinder 062 is connected to the X-axis movable clamp 061, and the other end is connected to the Z-axis movable cylinder 063. The Y-axis movable cylinder 062 can move relative to the laminate 10 in a direction parallel to the plane of the laminate 10 and perpendicular to the extension direction of the crossbeam 05. The end of the Z-axis movable cylinder 063 facing the laminate 10 is also connected to an ejector pin 065. The Z-axis movable cylinder 063 moves relative to the laminate 10 in a direction perpendicular to the plane of the laminate 10. The movement of the three-way guide rails 06 drives the ejector pin 065. The Z-axis movable cylinder 063 moves to the position where the laminate 10 needs to be electrically injected. It controls the ejector pin 065 to contact the laminate 10. An external constant current source injects electricity into the laminate 10 through the ejector pin 065. In an optional embodiment provided in this application, a spring 064 is also included between the Z-axis movable cylinder 063 and the ejector pin 065. The spring 064 is used to reduce the impact force of the ejector pin 065 relative to the laminate 10. In this way, by setting the roller 08 and the alignment cylinder 09 inside the sealed electrical injection cavity 03, the laminate 10 to be electrically injected can be aligned and positioned. The three-way guide rail 06 can control the ejector pin 065 to contact the laminate 10 to be electrically injected and to inject electricity into the laminate 10 under the action of the external constant current source. The spring 064 between the three-way guide rail 06 and the ejector pin 065 can reduce the impact force of the ejector pin 065 relative to the laminate 10 and reduce the defects of the laminate 10 caused by mechanical collision.

[0058] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination system 00. The sealed electric injection chamber 03 further includes an air cooling device 11 and an exhaust device 12. The air cooling device 11 and the exhaust device 12 are used to cool the laminate 10 after electric injection. When the laminate 10 is being electrically injected, the air cooling device 11 is turned off and the exhaust device 12 is turned off. After the laminate 10 is electrically injected, the air cooling device 11 is turned on and the exhaust device 12 is turned on simultaneously.

[0059] Specifically, the bottom of the sealed electric injection chamber 03 is also equipped with a cooling device 11. Further, the cooling device 11 can be a powerful electric fan or similar device that generates airflow to dissipate heat from the object through rotation. The top of the sealed electric injection chamber 03 is also equipped with an exhaust device 12. Further, the exhaust device 12 can be an exhaust hood, ceiling-mounted exhaust hood, or top-mounted fume hood, etc., that uses an electrically powered impeller or fan to exhaust the air inside the sealed electric injection chamber 03, thereby controlling the internal temperature and humidity. When the laminate 10 enters the sealed electric injection chamber 03 until the electric injection of the laminate 10 is completed, the cooling device 11 and the exhaust device 12 are turned off. After the electro-injection is completed, the air-cooling device 11 is turned on to physically cool the laminate 10 after electro-injection. At the same time, the exhaust device 12 is turned on to extract the hot air from the sealed electro-injection chamber 03. In this way, by setting the air-cooling device 11 and the exhaust device 12 in the sealed electro-injection chamber 03, the laminate 10 after electro-injection can be physically cooled without the need for a separate cooling chamber, which reduces the space occupied by the photovoltaic module lamination system 00. The exhaust device 12 can also control the temperature of the sealed electro-injection chamber 03 within a certain temperature and humidity range, which is conducive to the slow cooling of the laminate 10 during the electro-injection process and maximizes the electro-injection gain of the laminate 10.

[0060] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination system 00, which further includes a water-cooled cavity 04. The discharge end of the sealed electric injection cavity 03 is connected to the inlet end of the water-cooled cavity 04. The water-cooled cavity 04 is used to cool the laminate 10 after electric injection.

[0061] In one optional embodiment of this application, the sealed electric injection cavity 03 is not equipped with an air-cooling device 11 and a water-cooling device. Instead, a water-cooling cavity 04 is connected to the discharge end 032 of the sealed electric injection cavity 03. That is to say, the photovoltaic module lamination system 00 includes a lamination feed cavity 01, a lamination cavity 02, a sealed electric injection cavity 03, and a water-cooling cavity 04. The discharge end 032 of the sealed electric injection cavity 03 is connected to the feed end 041 of the water-cooling cavity 04. After the laminate 10 completes the electric injection process in the sealed electric injection cavity 03, it is transported by a roller 08 through the discharge end 032 of the sealed electric injection cavity 03 to the feed end 041 of the water-cooling cavity 04 for water cooling. In this way, a water-cooling cavity 04 can be connected outside the sealed electric injection cavity 03, separating the electric injection process from the cooling process, saving time and improving efficiency.

[0062] Please continue to refer to this. Figures 1 to 4This application provides a photovoltaic module lamination system 00, the sealed electric injection cavity 03 includes a Ferris wheel stack structure 14, the Ferris wheel stack structure 14 includes a rotating shaft 141, a multi-layer stack platform 143 and a plurality of fixed rods 142, the stack platform 143 is connected to the fixed rods 142 in a one-to-one correspondence, and the stack platform 143 rotates along the rotating shaft 141 with the length of the fixed rods 142 extending in the direction of extension as the radius;

[0063] Each stacking platform 143 is equipped with a straightening cylinder 09, which is used to straighten and position the laminate 10.

[0064] The sealed electro-injection cavity 03 also includes multiple three-dimensional guide rails 06 and ejector pins 065. Each three-dimensional guide rail 06 is connected to an ejector pin 065. The ejector pin 065 is connected to a constant current source. The three-dimensional guide rails 06 are used to control the ejector pins 065 to inject electricity into the laminate 10 on the stack platform 143. A spring 064 is also provided between the three-dimensional guide rails 06 and the ejector pins 065. The spring 064 is used to buffer the movement of the ejector pins 065 relative to the laminate 10.

[0065] Specifically, in one optional embodiment provided in this application, the transmission device in the sealed electro-injection cavity 03 is a Ferris wheel stack structure 14. The Ferris wheel stack structure 14 is used to transport the laminate 10 from the feed end 031 of the sealed electro-injection cavity 03 to the discharge end, and to electro-inject the laminate 10 during the transport process. The Ferris wheel stack structure 14 includes a rotating shaft 141, a multi-layer stack platform 143, and multiple fixing rods 142. One end of each fixing rod 142 is connected to the rotating shaft 141, and the other end is connected to the stack platform 143. The multiple fixing rods 142 are evenly distributed around the rotating shaft 141. The stack platform 143 rotates along the rotating shaft 141 with the length of the fixing rods 142 extending in the direction of extension as the radius. Further, each stack platform 143 is provided with a straightening cylinder 09. The number of straightening cylinders 09 is one or more. This application does not specifically limit the number of straightening cylinders 09. It can be set according to actual needs. The straightening cylinders 09 are used to straighten and position the laminate 10.

[0066] Furthermore, in an optional embodiment provided in this application, the sealed electro-injection cavity 03 including the Ferris wheel stack structure 14 further includes a three-way guide rail 06 and a ejector pin 065 (not shown in the figure). The three-way guide rail 06 includes an X-axis movable clamp 061, a Y-axis movable cylinder 062, and a Z-axis movable cylinder 063. The X-axis movable clamp 061 is located on the crossbeam 05 in the sealed electro-injection cavity 03 and can move relative to the crossbeam 05 along its extension direction. One end of the Y-axis movable cylinder 062 is connected to the X-axis movable clamp 061, and the other end is connected to the Z-axis movable cylinder 063. The Y-axis movable cylinder 062 can move along a direction parallel to the plane of the laminate 10 and interact with the laminate 10. The Z-axis movable cylinder 063 is connected to the ejector pin 065 at one end facing the laminate 10. The Z-axis movable cylinder 063 moves relative to the laminate 10 in a direction perpendicular to the plane where the laminate 10 is located. The movement of the three guide rails 06 drives the ejector pin 065 to move to the position of the laminate 10 where electrical injection is required. The Z-axis movable cylinder 063 controls the ejector pin 065 to contact the laminate 10. An external constant current source performs electrical injection on the laminate 10 through the ejector pin 065. In an optional embodiment provided in this application, a spring 064 is also included between the Z-axis movable cylinder 063 and the ejector pin 065. The spring 064 is used to reduce the impact force of the ejector pin 065 relative to the laminate 10.

[0067] In one optional embodiment provided in this application, the sealed electro-injection cavity 03 may contain only one three-axis guide rail 06. The Z-axis movable cylinder 063 in the three-axis guide rail 06 may be connected to two ejector pins 065. The two ejector pins 065 can complete the electro-injection by contacting the leftmost and rightmost leads of the laminate 10 respectively. When there is only one three-axis guide rail 06, the stack platform 143 moves to the corresponding position of the three-axis guide rail 06 as the rotating shaft 141 rotates. The three-axis guide rail 06 and the stack platform 143 are positioned by a mechanical structure. The three-axis guide rail 06 controls the ejector pins 065 to complete the electro-injection of the laminate 10 on the stack platform 143. The mechanical structure positioning can be understood as positioning by the alignment cylinder 09 or other positioning methods.

[0068] It should be noted that there can be multiple three-way guide rails 06, and multiple ejector pins 065 corresponding to the three-way guide rails 06 can also be set. Those skilled in the art should understand that when there are multiple three-way guide rails 06, the vertical distance between each stack platform 143 and the crossbeam 05 inside the sealed electric injection cavity 03 is different, and the moving distance of the Z-axis movable cylinder 063 in each three-way guide rail 06 is different, which will not be elaborated here. In this way, by setting the Ferris wheel stack platform 143 inside the sealed electric injection cavity 03, electric injection can be performed on the laminate 10 during the conveying process without affecting the flow rhythm and improving the working efficiency of the electric injection process.

[0069] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination system 00. The sealed electric injection cavity 03 further includes a water-cooled platform. The water-cooled platform is used to receive the laminate 10 after it has been transferred and electrically injected through the Ferris wheel stack structure 14, and to cool the laminate 10 after it has been electrically injected.

[0070] In one optional embodiment provided in this application, the sealed electro-injection cavity 03, which includes the Ferris wheel stacking platform 143, also includes a water-cooled platform (not shown in the figure). The water-cooled platform is located at the bottom of the sealed electro-injection cavity 03. It should be noted that the motor-controlled rotating shaft 141 can rotate both clockwise and counterclockwise. When the motor-controlled rotating shaft 141 rotates, the stacking platform 143 moves downward to receive the laminate 10 at the discharge end 022 of the lamination cavity. The rotation of the rotating shaft 141 drives the stacking platform 143 to move to a position away from the water-cooled platform for electro-injection. The laminate 10, after electro-injection, is moved to a position close to the water-cooling platform via the rotating shaft 141 and then transferred to the water-cooling platform for cooling. In this way, by setting a water-cooling platform at the bottom of the sealed electro-injection cavity 03, the stacking platform 143 is moved to a position away from the water-cooling platform to perform electro-injection on the laminate 10 carried on the stacking platform 143. After the electro-injection of the laminate 10 is completed, it is transferred to the water-cooling platform for water cooling. This achieves slow cooling of the laminate 10 during the electro-injection process, improves the electro-injection efficiency, and allows for timely cooling of the laminate 10 after electro-injection, saving production cycle time.

[0071] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination system 00.

[0072] The sealed electro-injection chamber 03 also includes a temperature detection device 15, which is used to collect the temperature of the laminate 10 to be electro-injected. When the temperature of the laminate 10 to be electro-injected is not lower than 100°C, electro-injection is performed on the laminate 10 to be electro-injected.

[0073] In one optional embodiment provided in this application, the sealed electric injection cavity 03 further includes a temperature detection device 15. Specifically, the temperature detection device 15 can be an infrared temperature detector, an electronic digital display thermometer, or other device capable of temperature detection. The temperature detection device 15 monitors the temperature inside the sealed electric injection cavity 03. When the temperature inside the sealed electric injection cavity 03 is below 100°C, electric injection is not performed on the laminate 10 inside the sealed electric injection cavity 03. When the temperature inside the sealed electric injection cavity 03 is not lower than 100°C, such as 110°C, 120°C, 150°C, or other conditions not lower than 100°C, electric injection is performed on the laminate 10 inside the sealed electric injection cavity 03. Thus, by setting the temperature detection device 15, it is ensured that the laminate 10 is electrically injected when the temperature is not lower than 100°C, which is beneficial to improve the electric injection gain and reduce the power loss caused by rapid cooling.

[0074] Please continue to refer to this. Figures 1 to 4 Based on the same inventive concept, this application also provides a photovoltaic module lamination method, applied in the photovoltaic module lamination system 00 as described above, comprising:

[0075] After sorting, connecting, and stacking the cells to form pre-laminated photovoltaic modules, the pre-laminated photovoltaic modules are placed on the loading platform of the lamination feeding chamber 01.

[0076] The pre-laminated photovoltaic module enters from the discharge end 012 of the lamination feed chamber 01 into the feed end 021 of the lamination chamber 02, and lamination is performed in the lamination chamber 02.

[0077] The laminated photovoltaic module enters the inlet end 031 of the sealed electric injection chamber 03 from the outlet end 022 of the lamination chamber 02; the temperature detection device 15 in the sealed electric injection chamber 03 collects the temperature of the laminate 10 to be injected; when the temperature of the laminate 10 to be injected is not lower than 100°C, electric injection is performed on the laminate 10 to be injected in the sealed electric injection chamber 03.

[0078] Cool the laminate 10 after the electro-injection is completed.

[0079] Specifically, after the solar cells undergo sorting, string welding, and stacking to form pre-laminated photovoltaic modules, they are placed on the loading platform of the lamination feeding chamber 01. The pre-laminated photovoltaic modules enter the lamination feeding chamber 01 from the feeding end 011 for lamination preparation, and then enter the lamination chamber 02 from the feeding end 021 for lamination. The laminated photovoltaic modules then enter the sealed electric injection chamber 03 from the discharge end 022 of the lamination chamber 02 via the feeding end 031 of the sealed electric injection chamber 03. The temperature detection device 15 monitors the temperature of the laminated components 10 in the sealed electric injection chamber 03. The system monitors the temperature of the laminate 10 inside the sealed electric injection cavity 03 to 100°C or higher. Electric injection is then performed on the laminate 10, followed by cooling. This completes the entire electric injection process. Thus, by completing the lamination and electric injection of the photovoltaic module in the photovoltaic module lamination system 00 containing the sealed electric injection cavity 03 provided in this application, the photovoltaic module can be kept warm, reducing power loss caused by rapid cooling. Performing electric injection at 100°C or higher increases the electric injection gain, reduces power attenuation, and thereby improves the power generation efficiency of the photovoltaic module.

[0080] It should be noted that, in one optional embodiment provided in this application, the laminate 10 is electro-injected at a temperature not lower than 100°C. The optimal gain current range for electro-injection is 5A-20A, specifically, the current range can be 5A-10A, 6A-12A, 7A-14A, 8A-16A, 10A-18A, 10A-20A, etc.; the optimal gain injection time range for electro-injection is 60-300S, specifically, the electro-injection time range can be 60S-300S, 70S-100S, 90S-120S, 110S-140S, 130S-160S, 150S-180S, 170S-200S, 190S-220S, 210S-250S, 230S-280S, 250S-300S, etc.; these will not be elaborated here, as long as the electro-injection current and time are within the above-mentioned ranges.

[0081] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination method, applied in the photovoltaic module lamination system 00 as described above, wherein electrical injection is performed on the laminate 10 to be injected into the sealed electrical injection cavity 03, including:

[0082] The laminate to be injected 10 moves on the roller 08 in the direction from the feed end 031 of the sealed electric injection cavity 03 to the discharge end 032 of the sealed electric injection cavity 03, and the alignment cylinder 09 aligns and positions the laminate to be injected 10.

[0083] The three-way guide rail 06 controls the ejector pin 065 to contact the laminar material 10 to be electrically injected. A spring 064 is also provided between the three-way guide rail 06 and the ejector pin 065. The spring 064 buffers the relative movement of the ejector pin 065 with respect to the laminar material 10 to be electrically injected. The laminar material 10 completes the electrical injection.

[0084] Alternatively, the stack platform 143 in the Ferris wheel stack structure 14 inside the sealed electro-injection cavity 03 moves down to receive the laminate 10 to be electro-injected. The aligning cylinders 09 around the stack platform 143 align and position the laminate 10 to be electro-injected. The Ferris wheel stack structure 14 continues to rotate to complete the continuous reception of the laminate 10 to be electro-injected.

[0085] The three-way guide rail 06 is mechanically positioned with the stack platform 143. The three-way guide rail 06 controls the ejector pin 065 to contact the laminar material 10 to be electrically injected. A spring 064 is also provided between the three-way guide rail 06 and the ejector pin 065. The spring 064 buffers the relative movement of the ejector pin 065 with respect to the laminar material 10 to be electrically injected. The laminar material 10 completes the electrical injection.

[0086] In one optional embodiment provided in this application, the sealed electro-injection cavity 03 conveys the laminate 10 via a roller 08. After the solar cells undergo sorting, string welding, and stacking to form a pre-laminated photovoltaic module, they are placed on the loading platform of the lamination feed cavity 01. The pre-laminated photovoltaic module enters the lamination feed cavity 01 from the feed end 011 for lamination preparation, and then enters the lamination cavity 02 from the feed end 021 for lamination. The laminated photovoltaic module exits from the discharge end 012 of the lamination feed cavity 01 via... The roller 08 at the feed end 031 of the sealed electric injection chamber 03 conveys the material into the sealed electric injection chamber 03. The alignment cylinders 09 on both sides and in the middle of the roller 08 align and position the laminate 10. The X-axis movable clamp 061 in the three-way guide rail 06 moves along the extension direction of the crossbeam 05. The Y-axis movable cylinder 062 moves in a direction parallel to the plane of the laminate 10 and perpendicular to the extension direction of the crossbeam 05. The Z-axis movable cylinder 063 moves relative to the laminate 10 in a direction perpendicular to the plane of the laminate 10. That is, the coordinated control of the X-axis movable clamp 061, Y-axis movable cylinder 062, and Z-axis movable cylinder 063 in the three-axis guide rail 06 moves the ejector pin 065 to a position in contact with the laminate 10, turns on the external constant current source, and completes the electrical injection by contacting the ejector pin 065 with the laminate 10. A spring 064 is also included between the three-axis guide rail 06 and the ejector pin 065. The spring 064 is used to buffer the impact force of the ejector pin 065 moving relative to the laminate 10. It should be noted that this application adopts a series injection method for the laminate 10. Electrical injection can be performed using a single constant current source. In this way, the laminate 10 is transported within the sealed electrical injection chamber 03 via the roller 08, which facilitates the cylinder alignment of the laminate 10 and reduces heat dissipation from contact between the laminates 10. The electrical injection uses a three-way guide rail 06 to position the ejector pin 065 and a cylinder in the roller 08 to position the laminate 10. Both positions are achieved using mechanical structures, making the operation simple and eliminating the need for visual positioning. A single constant current source is sufficient to perform series electrical injection of the laminate 10, reducing equipment usage and improving electrical injection efficiency.

[0087] In another optional embodiment provided in this application, the sealed electric injection cavity 03 transports the laminate 10 through the Ferris wheel stack structure 14. After the solar cells are sorted, interconnected by string welding, and stacked to form a pre-laminated photovoltaic module, they are placed on the loading platform of the lamination feeding cavity 01. The pre-laminated photovoltaic module enters the lamination feeding cavity 01 from the feeding end 011 of the lamination feeding cavity 01 for lamination preparation, and then enters the lamination cavity 02 from the feeding end 021 of the lamination cavity 02 for lamination. The laminated photovoltaic module enters the sealed electric injection cavity 03 from the discharging end 012 of the lamination feeding cavity 01 through the feeding end 031 of the sealed electric injection cavity 03. Specifically, the stacking platform 143 in the Ferris wheel stack structure 14 moves down to receive the laminate 10, and the alignment cylinders 09 located around the stacking platform 143 perform alignment and positioning of the received laminate 10. When the structure 14 rotates and moves the laminate 10 to a certain position, the three-way guide rail 06 and the stacking platform 143 achieve contact between the ejector pin 065 and the laminate 10 through mechanical positioning to complete the electro-injection (the specific movement method of the three-way guide rail 06 is the same as before and will not be repeated). After electro-injection, the laminate 10 is transferred to the water-cooling platform. The Ferris wheel stacking structure 14 continues to rotate, continuously receiving subsequent laminates 10 to the stacking platform 143, completing the electro-injection cycle. In this way, transporting the laminate 10 through the Ferris wheel stacking structure 14 can reduce heat dissipation from contact between the laminates 10, facilitate mechanical positioning between the three-way guide rail 06 and the stacking platform 143, and eliminate the need for a separate visual positioning device. The Ferris wheel stacking structure 14 is set in the sealed electro-injection cavity 03, which can reduce the rapid cooling of the laminate 10 during the electro-injection process, improve the electro-injection gain, and reduce power loss.

[0088] Please continue to refer to this. Figures 1 to 4 This application provides a photovoltaic module lamination method, which involves cooling the laminate 10 after electro-injection, including:

[0089] After the lamination 10 to be injected into the sealed electric injection chamber 03 is injected, the air-cooling device 11 and the exhaust device 12 in the sealed electric injection chamber 03 are turned on to cool down the lamination 10 that has completed the electric injection.

[0090] Alternatively, the laminate 10 that has undergone electro-injection can be transported from the discharge end 032 of the sealed electro-injection chamber to the inlet end of the water-cooling chamber 04 for cooling.

[0091] Alternatively, after the laminate 10 to be electrically injected is completed on the Ferris wheel stack structure 14 in the sealed electrical injection cavity 03, the Ferris wheel stack structure 14 will transfer the electrically injected laminate 10 to the water-cooling platform in the sealed electrical injection cavity 03, and the electrically injected laminate 10 will be cooled on the water-cooling platform.

[0092] In one optional embodiment provided in this application, the laminate 10 is transported by the roller 08 in the sealed electric injection cavity 03, and the bottom of the sealed electric injection cavity 03 is also provided with a cooling device 11, and the top of the sealed electric injection cavity 03 is also provided with an exhaust device 12. When the three-way guide rail 06 controls the ejector pin 065 to perform electric injection on the laminate 10 on the roller 08 under the action of an external constant current source, the cooling device 11 at the bottom of the sealed electric injection cavity 03 is turned on, and the exhaust device 12 at the top of the sealed electric injection cavity 03 is turned on simultaneously to cool down the laminate 10 after electric injection.

[0093] In another optional embodiment provided in this application, the laminate 10 is transported by the roller 08 in the sealed electric injection cavity 03, and a water-cooling cavity 04 is also provided outside the sealed electric injection cavity 03. At this time, the photovoltaic module lamination system 00 includes a lamination feed cavity 01, a lamination cavity 02, a sealed electric injection cavity 03 and a water-cooling cavity 04. When the three-way guide rail 06 in the sealed electric injection cavity 03 controls the ejector pin 065 to perform electric injection on the laminate 10 on the roller 08 under the action of an external constant current source, the roller 08 transports the laminate 10 after electric injection to the feed end of the water-cooling cavity 04 through the discharge end 032 of the sealed electric injection cavity. The laminate 10 after electric injection completes the cooling process in the water-cooling cavity 04.

[0094] In another optional embodiment provided in this application, the laminate 10 is transferred within the sealed electro-injection cavity 03 by the Ferris wheel stack structure 14, and the bottom of the sealed electro-injection cavity 03 also includes a water-cooling platform. When the triangular guide rail 06 controls the ejector pin 065 to electro-inject the laminate 10 on the stack platform 143, which is far from the water-cooling platform, under the action of an external constant current source, the Ferris wheel stack structure 14 continues to rotate to transfer the electro-injected laminate 10 to the water-cooling platform, and the electro-injected laminate 10 is cooled on the water-cooling platform.

[0095] Thus, by designing three different cooling methods, it is possible to perform electrical injection on the laminate 10 under slow cooling conditions to improve the electrical injection gain, and also to cool down the laminate 10 after electrical injection. When the sealed electrical injection cavity 03 can perform electrical injection on the laminate 10 under slow cooling conditions and also cool down the laminate 10 after electrical injection, the space occupied by the cooling structure in the workshop can be effectively reduced, and the space utilization rate can be improved.

[0096] In summary, the photovoltaic module lamination system and lamination method provided in this application achieve at least the following beneficial effects: by setting a sealed electric injection cavity in the photovoltaic module lamination system, the photovoltaic module can be electrically injected under slow cooling conditions, achieving better power gain and reducing power attenuation caused by rapid cooling, thereby improving the power generation of the photovoltaic module; the metal material can give the sealed electric injection cavity a certain strength, and the organic transparent glass material can make the electric injection process of the photovoltaic module in the sealed electric injection cavity visible, which is convenient for monitoring the electric injection process and timely handling of possible faults.

[0097] By setting rollers and a centering cylinder inside the sealed electro-injection chamber, the laminate to be electro-injected can be centered and positioned. The three-way guide rail can control the ejector pin to contact the laminate to be electro-injected and perform electro-injection on the laminate under the action of an external constant current source. The spring between the three-way guide rail and the ejector pin can reduce the impact force of the ejector pin relative to the laminate and reduce defects such as microcracks in the laminate caused by mechanical collision.

[0098] By installing a cooling device and an exhaust device inside the sealed electric injection chamber, the laminated component can be physically cooled after electric injection, eliminating the need for a separate cooling chamber and reducing the space occupied by the photovoltaic module lamination system. The exhaust device can also control the temperature of the sealed electric injection chamber within a certain temperature and humidity range, which is conducive to the slow cooling of the laminated component during the electric injection process and maximizes the electric injection gain of the laminated component.

[0099] A water-cooling chamber can be connected to the outside of the sealed electric injection chamber to separate the electric injection process from the cooling process, saving time and improving efficiency.

[0100] By setting up a Ferris wheel stacking platform inside the sealed electro-injection cavity, electro-injection can be carried out during the transport of laminated components without affecting the flow rate, thus improving the efficiency of the electro-injection process.

[0101] By setting a water-cooled platform at the bottom of the sealed electro-injection chamber, the stacking platform is moved to a position away from the water-cooled platform to perform electro-injection on the laminates carried on the stacking platform. After the electro-injection of the laminates is completed, they are transferred to the water-cooled platform for water cooling and cooling. This can achieve slow cooling of the laminates during the electro-injection process, improve the electro-injection efficiency, and cool the laminates in time after electro-injection, saving production cycle time.

[0102] By performing electrical injection at temperatures of 100°C and above, the electrical injection gain can be increased, power attenuation can be reduced, and thus the power generation efficiency of photovoltaic modules can be improved.

[0103] By transporting the laminates by rollers, the cylinders can easily align the laminates and reduce heat dissipation from contact between the laminates. The mechanical structure positioning is simple and does not require visual positioning. Only a single constant current source is needed to achieve series electrical injection of the laminates, reducing equipment usage and improving electrical injection efficiency.

[0104] Transporting laminated components via a Ferris wheel stack structure reduces heat dissipation from contact between the components, facilitates mechanical positioning between the three-way guide rails and the stack platform, eliminates the need for additional visual positioning devices, reduces rapid cooling during the electro-injection process of the laminated components, improves electro-injection gain, and reduces power loss.

[0105] By designing three different cooling methods, it is possible to perform electrical injection on the laminate under slow cooling conditions to improve the electrical injection gain, and also to cool down the laminate after electrical injection. When the sealed electrical injection cavity can perform electrical injection on the laminate under slow cooling conditions and also cool down the laminate after electrical injection, it can effectively reduce the area occupied by the cooling structure in the workshop and improve the space utilization rate.

[0106] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A photovoltaic module lamination system, characterized in that, include: Lamination feed chamber, lamination chamber, sealed electric injection chamber; The sealed electric injection chamber is used to keep the temperature during the high-temperature electric injection process. The discharge end of the lamination feed chamber is connected to the feed end of the lamination chamber, and the feed end of the sealed electric injection chamber is connected to the discharge end of the lamination chamber. The sealed electric injection cavity is made of metal, or the sealed electric injection cavity is made of organic transparent glass, or a portion of the sealed electric injection cavity is made of metal and a portion of the sealed electric injection cavity is made of organic transparent glass; The sealed electro-injection cavity includes a Ferris wheel stack structure, which includes a rotating shaft, a multi-layer stack platform, and multiple fixed rods. The stack platform is connected to each of the fixed rods in a one-to-one correspondence. The stack platform rotates along the rotating shaft with the length of the fixed rod extending in the direction of extension as the radius. Each of the stacking platforms is equipped with a centering cylinder, which is used to center and position the laminate. The sealed electro-injection cavity also includes multiple three-dimensional guide rails and ejector pins. Each three-dimensional guide rail is connected to an ejector pin, and the ejector pin is externally connected to a constant current source. The three-dimensional guide rails are used to control the ejector pins to electro-inject into the laminate on the stack platform. A spring is also provided between the three-dimensional guide rails and the ejector pins, and the spring is used to buffer the movement of the ejector pins relative to the laminate.

2. The photovoltaic module lamination system according to claim 1, characterized in that, The sealed electro-injection chamber also includes an air-cooling device and an exhaust device, which are used to cool the laminate after electro-injection. When the laminate is electro-injected, the air-cooling device is turned off and the exhaust device is turned off. After the electro-injection of the laminate is completed, the air-cooling device is turned on and the exhaust device is turned on simultaneously.

3. The photovoltaic module lamination system according to claim 1, characterized in that, The sealed electro-injection cavity also includes a water-cooled platform, which is used to receive the laminate after it has been transferred and electro-injected through the Ferris wheel stack structure, and to cool the laminate after electro-injection.

4. The photovoltaic module lamination system according to claim 1, characterized in that, The sealed electro-injection chamber also includes a temperature detection device, which is used to collect the temperature of the laminate to be electro-injected. When the temperature of the laminate to be electro-injected is not lower than 100°C, electro-injection is performed on the laminate to be electro-injected.

5. A photovoltaic module lamination method, characterized in that, After sorting, interconnecting, and stacking the batteries to form pre-laminated photovoltaic modules, the pre-laminated photovoltaic modules are placed on the loading platform of the lamination feeding chamber. The pre-laminated photovoltaic module enters the lamination chamber from the outlet end of the lamination feed chamber and is laminated in the lamination chamber. The laminated photovoltaic module enters the sealed electric injection chamber from the outlet end of the lamination chamber. A temperature detection device inside the sealed electro-injection chamber collects the temperature of the laminate to be electro-injected. When the temperature of the laminate to be electro-injected is not lower than 100°C, electro-injection is performed on the laminate to be electro-injected within the sealed electro-injection chamber. This includes: a stacking platform in the Ferris wheel stacking structure inside the sealed electro-injection chamber lowers to receive the laminate to be electro-injected; a aligning cylinder around the stacking platform aligns and positions the laminate to be electro-injected; the Ferris wheel stacking structure rotates continuously to continuously receive the laminate to be electro-injected; a three-way guide rail is mechanically positioned with the stacking platform; the three-way guide rail controls the ejector pin to contact the laminate to be electro-injected; a spring is also provided between the three-way guide rail and the ejector pin to buffer the relative movement of the ejector pin relative to the laminate to be electro-injected. Wait for the laminated component to complete the electrical injection; Cool the laminated part after electro-injection.

6. The photovoltaic module lamination method according to claim 5, characterized in that, The cooling of the laminated part after electro-injection includes: After the lamination to be injected into the sealed electro-injection chamber is completed, the air-cooling device and the exhaust device in the sealed electro-injection chamber are turned on to cool down the lamination that has completed electro-injection. Alternatively, after the laminate to be injected with electricity is completed on the Ferris wheel stack structure in the sealed electric injection cavity, the Ferris wheel stack structure will transfer the laminate to the water-cooling platform in the sealed electric injection cavity, and the laminate will be cooled on the water-cooling platform after the electric injection is completed.

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