Electromechanical injection device of laminating machine and laminating machine for laminated electric injection integrated photovoltaic module

Abstract

In the prior art, an electric injection lamination integrated photovoltaic module laminator electrode and a photovoltaic module power supply leading-out wire electrode need to be conducted through a metal foil arranged on high-temperature cloth, and the position of the metal foil on the high-temperature cloth is easy to change, so that the two electrodes cannot be conducted. The utility model provides an electric injection device of a laminating machine and a laminating machine for a laminated electric injection integrated photovoltaic module, the electric injection device of the laminating machine comprises an electric injection box, a terminal cover, a conductive rod and at least two guide columns used for being connected with a positive electrode and a negative electrode, and the laminating machine for the laminated electric injection integrated photovoltaic module comprises an electric injection box, a terminal cover, a conductive rod and at least two guide columns used for being connected with the positive electrode and the negative electrode. Comprising a laminating main machine for carrying out laminating and curing on a photovoltaic module, the laminating main machine comprises an upper pressing plate and a laminating workbench, and the technical problem that an electric injection electrode and a power supply outgoing line of the photovoltaic module cannot be conducted in the prior art can be solved by adopting the laminating machine electric injection device and the photovoltaic module laminating machine provided by the utility model. And during electric injection, the electrode is reliably connected with a power lead-out wire of the photovoltaic module.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic module electrical injection. Background Art

[0002] The phenomenon of light-induced attenuation refers to the phenomenon that the power of a solar cell photovoltaic module decays after being irradiated by light. The power decay will directly reduce the power generation of the photovoltaic module. When the power decay exceeds a certain range, there will be a large power generation fluctuation when the photovoltaic module operates in a photovoltaic power station.

[0003] Research has found that electrical injection can regulate the valence state and distribution of hydrogen in a solar cell through electrical means, achieve passivation of defects and impurities, and effectively improve the problem of light attenuation.

[0004] At present, the electrical injection process is a key process for passivating the defects in the solar cell body and improving its anti-attenuation performance.

[0005] In order to improve the optoelectronic performance of photovoltaic modules, more and more manufacturers perform electrical injection treatment on photovoltaic modules before they leave the factory, injecting carriers into the battery chips to achieve hydrogen passivation.

[0006] The process of electrical injection is to place the photovoltaic module in an electrical injection device, and apply a forward bias voltage to the photovoltaic module at a certain temperature to form carrier injection.

[0007] Most of the current electrical injection devices are independent, and there are problems such as large floor area, high production cost, and low production efficiency.

[0008] The Chinese invention patent application with the title "Laminator for manufacturing photovoltaic modules, manufacturing process of photovoltaic modules, and photovoltaic modules", application number 201910322715.1, discloses an electro-injection and lamination integrated photovoltaic module laminator. A positive and negative conductive metal foil is provided on the high-temperature cloth of a conventional laminator, and tooling probes are provided on the metal crossbeams at the joints of the loading table and the vacuum pumping chamber, and between the vacuum pumping chamber and the lamination chamber of the conventional laminator. One end of a conductive metal fixture is respectively connected to the positive and negative electrodes of the component power supply lead-out wire on the pre-laminated photovoltaic module, and the other end contacts the positive and negative conductive metal foils on the high-temperature cloth after entering the vacuum pumping chamber and the lamination chamber of the laminator. The other end of the tooling probe is connected to the positive and negative electrodes of a current source. After forming an energized circuit, the control valve of the tooling probe and the switch of the current source are opened, and the laminator synchronously performs the electro-injection treatment and the lamination treatment of the pre-laminated photovoltaic module through the energized circuit; for the electro-injection and lamination integrated photovoltaic module laminator with such a structure, since its conductive metal foil is provided on the high-temperature cloth, and the high-temperature cloth is a material with a certain flexibility, after it enters the laminator, its position is inaccurate, resulting in the inability to align the positive and negative conductive metal foils with the positive and negative positions of the component power supply lead-out wire on the photovoltaic module, and often causing the situation where conduction cannot be achieved during electro-injection. Summary of the Utility Model

[0009] The purpose of the present utility model is to provide a laminator electro-injection device and an electro-injection and lamination integrated photovoltaic module laminator for the deficiency that in the prior art, conduction between the electrodes of the electro-injection and lamination integrated photovoltaic module laminator and the component power supply lead-out wire electrodes of the photovoltaic module needs to be achieved through a metal foil provided on a high-temperature cloth, and the position of the metal foil on the high-temperature cloth is prone to change, resulting in the inability to connect the two.

[0010] The purpose of the present utility model is achieved through the following technical solutions:

[0011] A laminator electro-injection device, the laminator being a photovoltaic module laminator, includes an electro-injection box, a terminal cover, a conductive rod, and at least two guide posts for connecting to positive and negative electrodes. Both the electro-injection box and the terminal cover are made of insulating materials. The terminal cover is fixedly arranged outside the electro-injection box cover. The guide posts are arranged vertically, with one end fixedly connected to the inner side of the electro-injection box cover and the other end being a free end. A spring and an electrode are sleeved on the free end of the guide post. The spring is clamped between the electrode and the electro-injection box cover. The electrode is fixedly connected to the guide post through a locking and fixing device. A through hole for a flexible wire to pass through is provided on the terminal cover. One end of the conductive rod passes through the electro-injection box cover and is located inside the terminal cover, and the other end is located inside the electro-injection box. The end of the conductive rod located inside the electro-injection box is electrically connected to the electrode through a flexible wire, and the other end is connected to an electro-injection power supply through a flexible wire passing through the terminal cover. A connecting flange is fixedly arranged on the outer periphery of the electro-injection box cover, and a sealing ring groove is arranged on the inner side of the connecting flange;

[0012] The electrode is in the shape of a sheet-like long strip, with a boss provided on one side thereof, and an electrode mounting hole for a conductive rod to pass through is provided on the boss. A counterbore coaxial with the motor mounting hole is provided on the side of the electrode opposite to the boss. The electrode passes through the electrode mounting hole, and the locking and fixing device is located in the counterbore;

[0013] Two conductive rods are respectively provided corresponding to each positive electrode and negative electrode;

[0014] It includes an electric injection box, a terminal cover, and at least two conductive rods connected to the positive and negative electrodes. Both the electric injection box and the terminal cover are made of insulating materials. The conductive rod passes through the cover of the electric injection box, with one end inside the electric injection box and the other end outside the cover of the electric injection box. An electrode is fixedly provided at the end of the conductive rod inside the electric injection box, and an insulating plate is fixedly connected to the end outside the cover of the electric injection box and passes through the insulating plate. The terminal cover is provided outside the end of the conductive rod passing through the insulating plate, and the terminal cover covers the conductive rod and is fixedly connected to the insulating plate. A flexible telescopic seal is fixedly provided between the insulating plate and the electric injection box. The flexible telescopic seal is sleeved on the conductive rod. A spring is provided on the same side of the insulating plate where the flexible telescopic seal is provided. One end of the spring is fixedly connected to the insulating plate, and the other end is fixedly connected to a linear reciprocating driving device. A connecting flange is fixedly provided on the outer periphery of the cover of the electric injection box, and a sealing ring groove is provided inside the connecting flange;

[0015] The flexible telescopic seal is a corrugated pipe, and / or the linear reciprocating driving device is an electric cylinder;

[0016] The electrode is in the shape of a sheet-like long strip, and two conductive rods are provided for each electrode.

[0017] A layer piezoelectric injection integrated photovoltaic module laminator. The laminator includes a lamination main machine for laminating and curing a photovoltaic module. The lamination main machine includes an upper pressure plate and a lamination workbench. The upper pressure plate can form a sealed chamber with the lamination workbench under the drive of a lifting drive device and perform lamination on the photovoltaic module. The above-mentioned lamination machine electric injection device is adopted. A plurality of electric injection box mounting through holes are provided on the upper pressure plate. The electric injection box is arranged in the electric injection box mounting through holes. The flange is located on the upper surface of the upper pressure plate. The electric injection box and the upper pressure plate are hermetically and fixedly connected through the flange and a seal. The position of each electrode corresponds to the position of the power lead of the photovoltaic module to be electrically injected. The terminal cover is located outside the upper pressure plate. In the standby state, the electrode protrudes outside the lower end surface of the upper pressure plate. When electrically injecting, the electrode is flush with the lower end surface of the upper pressure plate;

[0018] The laminator includes a lamination main machine for laminating and curing photovoltaic modules. The lamination main machine includes an upper pressure plate and a lamination workbench. The upper pressure plate can form a sealed chamber with the lamination workbench under the drive of a lifting drive device and perform lamination on the photovoltaic module. Using the aforementioned electro-injection device of the laminator, a plurality of electro-injection box mounting through-holes are provided on the upper pressure plate. The electro-injection box is arranged in the electro-injection box mounting through-hole. The flange is located on the upper surface of the upper pressure plate. The electro-injection box and the upper pressure plate are sealed and fixedly connected through the flange and a seal. The linear reciprocating drive device is fixedly arranged above the upper pressure plate. The terminal cover, the insulating plate and the flexible telescopic seal are all located above the upper pressure plate. One end of the flexible wire is fixedly connected to the conductive rod, and the other end passes through the through-hole on the terminal cover and is fixedly connected to the electro-injection power supply. In the standby state, the electrode is located above the lower end surface of the upper pressure plate and inside the electro-injection box. When electro-injecting, the electrode is flush with the lower end surface of the upper pressure plate;

[0019] It further includes a cooling section, which is located at the rear side of the lamination main machine and receives the photovoltaic module after being laminated and cured by the lamination main machine. It includes a cooling section workbench. A support beam is arranged above the cooling section workbench, and an electro-injection device three is arranged on the support beam. The electro-injection device three uses the aforementioned electro-injection device or the above-mentioned electro-injection device;

[0020] The electro-injection device includes a conductive rod three, an electro-injection drive device and an insulating plate two. The insulating plate two is fixedly arranged on the output end of the electro-injection drive device. The conductive rod three passes through the through-hole provided on the insulating plate two and is telescopically and movably connected to the through-hole. A spring three is sleeved on the protruding end of the conductive rod three below the insulating plate two. The end of the protruding end of the conductive rod three is fixedly connected to an electrode three. A limit retaining ring two is arranged on the other protruding end of the conductive rod three. The insulating plate two is located between the limit retaining ring and the spring three. One end of a flexible wire two is connected to the conductive rod three, and the other end is used to connect to the electro-injection power supply. The electrode three corresponds to the power supply lead-out wire position of the photovoltaic module entering the laminator. The length direction of the electrode three is perpendicular to the extension direction of the power supply lead-out wire.

[0021] Using the electro-injection device with the structure of Embodiment 1 of the present utility model, the electro-injection device as a whole can be fixedly arranged on the upper pressure plate of the laminator through its electro-injection box. The electrode located inside the electro-injection box and the electro-injection power supply located outside the electro-injection box can be electrically connected through the conductive rod with one end inside the electro-injection box and the other end outside the electro-injection box. The electrode can float up and down smoothly without dislocation through the guide post and the spring, so that the electrode is directly pressed and connected to the power supply lead-out wire of the photovoltaic module, and the technical problem that the electro-injection electrode and the power supply lead-out wire of the photovoltaic module cannot be conducted in the prior art can be solved.

[0022] The laminator with the electro-injection device adopting the structure of Embodiment 1 of the present utility model has the following advantages for its lamination main machine: at the position on the upper platen corresponding to the position of the power lead-out wire of the photovoltaic module, there is an electro-injection box mounting hole, and the electro-injection box is hermetically and fixedly connected in the electro-injection box mounting hole through a connecting flange. By pre-designing the position of the photovoltaic module in the lamination main machine and the position of the electro-injection box mounting hole, when the photovoltaic module is transported into the lamination main machine, the electrodes can be directly opposite to the position of the power lead-out wire of the photovoltaic module. After the upper platen descends to the position of closing the cover, the electrodes can accurately press on the power lead-out wires of the photovoltaic module, avoiding non-conduction between the electrodes and the power lead-out wires of the photovoltaic module, and ensuring reliable connection between the electrodes and the power lead-out wires of the photovoltaic module during electro-injection.

[0023] For the electro-injection device adopting the structure of Embodiment 2 of the present utility model, through its electro-injection box and connecting flange, the electro-injection device as a whole can be hermetically and fixedly arranged on the upper platen of the lamination main machine. The electrode located inside the electro-injection box and the electro-injection power supply located outside the electro-injection box can be electrically connected through a conductive rod with one end inside the electro-injection box and the other end outside the electro-injection box. The electrode located inside the electro-injection box can be driven to telescopically move by an insulating plate and a linear reciprocating driving device arranged outside the electro-injection box, so as to press on or leave the power lead-out wire of the photovoltaic module. By hermetically and fixedly connecting one end of the conductive rod to the insulating plate and movably connecting the other end to the cover of the electro-injection box, and arranging a flexible sealing telescopic member between the insulating plate and the electro-injection box and making the conductive rod located inside it, the sealing of the lamination cavity and the up-and-down movement of the electrode can be ensured, and the sealing of the lamination cavity can be ensured to be good during the movement. By arranging a spring between the output end of the linear reciprocating driving device and the insulating plate, the electrode can float when contacting the lead-out wire of the photovoltaic module, increasing the flexibility of the contact.

[0024] The laminating press of the electro-injection device adopting the structure of the second embodiment of the present utility model has the following advantages for its laminating main machine: There is an electro-injection box installation hole for installing the electro-injection box on the upper platen. The electro-injection box is fixedly connected to the electro-injection installation hole through the electro-injection box cover and the connecting flange, and the electro-injection box is hermetically and fixedly arranged on the upper platen. By pre-designing the positions of the photovoltaic module in the laminating main machine and the electro-injection box installation hole, when the photovoltaic module is transported into the laminating main machine, the electrodes can be exactly opposite to the positions of the power lead-out lines of the photovoltaic module. When the upper platen descends to the position of closing the cover, the electrodes can accurately press on the power lead-out lines of the photovoltaic module, avoiding non-conduction between the electrodes and the power lead-out lines of the photovoltaic module. During electro-injection, the connection between the electrodes and the power lead-out lines of the photovoltaic module is reliable. By driving the electrodes to press on the power lead-out lines of the photovoltaic module through the linear reciprocating driving device, a certain pressure can be obtained locally for the photovoltaic module at the position where the electro-injection box is set, reducing the influence of setting the electro-injection box on the laminating effect. Since the size of the electro-injection box is relatively small and the electrodes can apply a certain pressure to the photovoltaic module through the linear reciprocating driving device, therefore, the influence of the electro-injection and laminating integrated laminating press of the structure of the present utility model on the laminating effect can be ignored. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 FIG. is a schematic diagram of the overall structure of an embodiment of the laminating and electro-injecting integrated photovoltaic module laminating press of the present utility model;

[0026] Figure 2 is Figure 1 schematic side view;

[0027] Figure 3 is Figure 1 schematic top view of;

[0028] Figure 4 is Figure 3 schematic B-B cross-sectional view of;

[0029] Figure 5 is Figure 3 schematic A-A cross-sectional view of.

[0030] Figure 6 is a schematic diagram of the structure of an embodiment of the electrode;

[0031] Figure 7 is Figure 6 schematic top view of;

[0032] Figure 8 is Figure 6 schematic C-C cross-sectional view of;

[0033] Figure 9 is a schematic diagram of the positions of the positive and negative electrodes and the power lead-out lines of the photovoltaic module

[0034] Figure 10Schematic structural diagram of another embodiment of an electro-injection device;

[0035] Figure 11 Front view schematic diagram of the structure of another electrode embodiment

[0036] Figure 12 is Figure 11 top view schematic diagram of;

[0037] Figure 13 is Figure 11 side view schematic diagram of;

[0038] Figure 14 Schematic structural diagram of a third embodiment of an electro-injection device.

[0039] Description of reference numerals

[0040] 1. Upper pressure plate; 2. Laminating machine frame; 3. Heating plate / cooling plate; 4. Photovoltaic module; 5. Lifting seat; 6. Lifting cylinder; 7. First electro-injection box; 71. First box cover; 72. First mounting flange; 8. First terminal cover; 9. First electrode; 91. First boss; 92. Electrode mounting hole; 93. Counterbore; 10. First spring; 11. First retaining ring; 12. Bolt; 13. Silicone strip; 14. First conductive rod; 15. First flexible wire; 16. Second flexible wire; 17. Reciprocating driving device 17 (first electro-injection cylinder) of the second electrode; 18. First insulating plate; 19. Second conductive rod; 20. Bellows; 21. Second electrode; 22. Support beam; 23. Third conductive rod; 24. Second insulating plate; 25. Third electrode; 26. Guide post; 27. Second electro-injection box; 28. Second terminal cover; 29. Second electro-injection cylinder; 30. Second spring; 31. Second retaining ring; 40. Power supply lead-out wire. Detailed implementation manners

[0041] The present invention will be further described in detail below through specific embodiments. The following embodiments are only descriptive and not restrictive, and the protection scope of the present invention cannot be limited thereby. For the convenience of description, the orientation description is carried out at the position shown in Figure 4 shown.

[0042] As Figures 1 - 14As shown in the figure, the integrated piezoelectric injection laminator for photovoltaic modules in the embodiment of the present utility model generally belongs to a flat pressing laminator, including an upper pressing plate and a laminating workbench. The upper pressing plate body and the laminating workbench body are both rigid plates, which can be curved or flat. Under the lifting action of the lifting drive device, the upper pressing plate and the laminating workbench are closed to form a sealed laminating cavity. The photovoltaic module is arranged in the laminating cavity and is jointly pressed by the upper pressing plate and the laminating workbench to complete lamination. The upper pressing plate is far away from the laminating workbench under the lifting action of the lifting drive device to facilitate workpiece transfer. The present utility model further includes an electric injection device, and the electric injection device completes electric injection on the photovoltaic module during the laminating process cycle to realize the integration of laminating and electric injection. An electric injection device with the following structure can be combined with the flat pressing laminator to complete lamination and curing.

[0043] Embodiment 1 of the electric injection device: As Figures 1 - 9As shown in the figure, the electro-injection device includes an electro-injection box 1-7, a guide post 26, an electro-injection electrode 1-9 (hereinafter referred to as electrode 1 for short), a conductive rod 1-14, and an electro-injection terminal cover 1-8. Both the electro-injection terminal cover 1-8 (hereinafter referred to as terminal cover 1 for convenience of description) and the electro-injection box 1-7 are made of insulating materials. The terminal cover 1 is located outside the lid of the electro-injection box 1-7 and is fixedly connected to the electro-injection box 1-7 by bolts. The guide post 26 is located inside the electro-injection box 1-7 and is vertically arranged. One end is fixedly connected to the inner side of the lid of the electro-injection box 1-7, and the other end is a free cantilever end. A spring 1-10 and an electrode 1-9 are successively penetrated on the guide post 26 from one side of the electro-injection box 1-7 towards the free cantilever end side of the guide post. The spring 1-10 and the electrode 1-9 are clamped on the guide post 26 by the electro-injection box 1-7, a retaining ring 1-11, and bolts 1-12. When the electrode 1-9 is extruded by an external force, the spring 1-10 will be compressed, and thus the electrode will float along the guide post. The conductive rod 1-14 is vertically fixedly and hermetically arranged on the lid of the electro-injection box 1-7. One end is outside the lid of the box, located inside the terminal cover 1-8, and the other end is inside the electro-injection box 1-7. One end of a flexible wire 1-15 is connected to the electrode 1-9, and the other end is electrically connected to one end of the conductive rod 1-14 located inside the electro-injection box 1-7. One end of a flexible wire 1-16 is connected to the conductive rod 1-14, and the other end passes through the terminal cover 1-8 and is connected to an electro-injection power supply. During installation, according to the position of the power lead-out wire of the photovoltaic module 4, after determining the position of the photovoltaic module power lead-out wire relative to the upper platen of the flat laminator when the module enters the laminator, electro-injection box installation through holes are provided at positions corresponding to each photovoltaic module power lead-out wire on the upper platen. The electro-injection box 1-7 is fixedly arranged in this installation through hole. An installation flange 1-72 is provided at the outer edge of the lid of the electro-injection box 1-7. A sealing ring groove is provided inside the connecting flange, and a silica gel strip 1-13 is installed in the sealing ring groove. The electro-injection box 1-7 is sealed with the upper platen 1 by relying on the silica gel strip to ensure the sealing performance under a vacuum state. Since the distance between the two electrodes of the photovoltaic module is relatively small, the distance between the positive and negative electrodes is relatively small, and the size of the electro-injection box 1-7 is relatively small. Therefore, setting the electro-injection box will not affect the lamination of the photovoltaic module by the laminator. The lower end of the electro-injection box 1-7 is flush with the lower plane of the upper platen 1, and the electrode 1-9 slightly protrudes above the lower end of the electro-injection box 1-7. When laminating, after the module arrives, the upper platen 1 presses on the photovoltaic module 4, and the electrode 1-9 presses on the power lead-out wire of the photovoltaic module 4. The height difference of the power lead-out wire of the photovoltaic module 4 is compensated by the spring 1-10, so that the electrode 1-9 is tightly pressed against the power lead-out wire of the photovoltaic module 4.

[0044] In order to further reduce the interference of the electro-injection device on the lamination quality and increase the stability and firmness of the combination of the electrode and the power supply lead-out wire of the photovoltaic module, it is preferable to adopt the following structure for Electrode 1. Electrode 1 is integrally in the shape of a sheet-like long strip. One side end face is a plane, and the other side end face is a convex surface structure with a first boss 91. A pair of electrode mounting holes 92 are provided on the first boss for the guide posts to pass through. The two electrode mounting holes are arranged along the length direction of Electrode 1, and are preferably symmetrically distributed with the center of Electrode 1 as the symmetry point. A counterbore 93 is coaxially provided corresponding to the electrode mounting hole on the plane side of Electrode 1. The bolt and the first retaining ring for fixing Electrode 1 are located in the counterbore 93. In this way, Electrode 1 is guided by two guide posts, and the balance stability of the electrode is good. The long strip-shaped electrode is arranged perpendicular to the length direction of the power supply lead-out wire of the module. In this case, the position requirement for the power supply lead-out wire of the module is not very high, and it can be easily pressed on the power supply lead-out wire of the photovoltaic module. There is a boss, which on the one hand ensures the installation of the electrode, and on the other hand ensures the contact area between the electrode and the battery, further reducing the influence of setting the electro-injection electrode on the lamination process. Since the overall size of the electro-injection device is very small, and coupled with the boss-like structure of Electrode 1, the pressure of the electrode plate on the photovoltaic module during electro-injection depends on the first spring, applying a relatively reasonable pressure to the photovoltaic module, so that the overall photovoltaic module is slightly affected and the lamination process is basically not affected.

[0045] Embodiment 2 of the electro-injection device. As Figure 10As shown in the figure, the electro-injection device of the structure of this embodiment includes an electro-injection box two 27, a conductive rod two 19, an electro-injection electrode two (hereinafter referred to as electrode two for convenience of description) 21, a terminal cover two 28, and an electrode two reciprocating drive device 17. The terminal cover two 28 is located above the electro-injection box two 27, and the two are flexibly and fixedly connected through an insulating plate one 18 and a flexible telescopic seal. The flexible telescopic seal usually adopts a bellows 20. The terminal cover two is arranged above the insulating plate one. The lower surface of the insulating plate one 18 is hermetically and fixedly connected to one end of the bellows 20, and the other end of the bellows is hermetically and fixedly connected to the upper surface of the electro-injection box two. A through hole for the conductive rod two 19 to pass through is provided on the electro-injection box two 27. One end of the conductive rod two 19 passes through the insulating plate one and is located inside the terminal cover two. The conductive rod two and the terminal cover two are fixedly connected. A through hole for a wire to pass through is provided on the terminal cover 2. The soft wire two 16 passes through one end of the terminal cover two 28 and is connected to the electro-injection power supply, and the other end is connected to the conductive rod two 19. The terminal cover two 28 is made of insulating material. The terminal cover two 28 and the insulating plate one 18 are connected by bolts. Both ends of the bellows 20 are hermetically and fixedly connected to the insulating plate one 18 and the electro-injection box two 27 respectively. The other end of the conductive rod two 19 passes through the flexible telescopic seal and then passes through the through hole on the electro-injection box two and is fixedly connected to the electrode two 21. The connection between the conductive rod two 19 and the electro-injection box two is a movable connection. A spring two 30 is arranged at the output end of the electrode two reciprocating drive device 17 and is fixedly connected to the insulating plate two through the spring two. Generally, the electrode two reciprocating drive device 17 adopts an electro-injection cylinder one. The base of the electro-injection cylinder one 17 is fixed to the upper pressing plate 1, and the cylinder head is connected to the spring two 30. The other end of the spring two 30 is fixed to the insulating plate one 18.

[0046] The installation method of the electro-injection box two 27 is the same as that of the electro-injection box one in Scheme One. The structure of the electro-injection box two 27 is the same as that of the electro-injection box one, and both are provided with installation flanges. A silica gel strip 13 is installed at the installation flange, and the electro-injection box one 7 and the upper pressing plate 1 are sealed by relying on the silica gel strip to ensure the sealing performance in a vacuum state. During installation, the electro-injection box two 27 is installed in the electro-injection box installation through hole of the upper pressing plate, and the lower end is flush with the lower plane of the upper pressing plate 1 or slightly shorter than the lower end face of the upper pressing plate. The electrode two 21 retracts inside the lower end of the electro-injection box two 27. When laminating, after the assembly arrives, the upper pressing plate 1 presses on the photovoltaic module 4. When electro-injection is required, the telescopic rod of the electro-injection cylinder one 1 retracts, and the insulating plate one 18 is pulled downward through the spring two 30, thereby driving the electrode two 21 to press on the power lead-out wire of the photovoltaic module 4. The height difference of the power lead-out wire of the photovoltaic module 4 is compensated through the spring two 30, so that the electrode two 21 is tightly pressed against the power lead-out wire of the photovoltaic module 4. In this scheme, the electrode is preferably in the shape of a long strip flat plate, so that the connection range with the power lead-out wire can be increased, and the position requirements of the photovoltaic module can be further reduced.

[0047] The above laminating host can be a hot-pressing and curing laminator or a cooler, and one or two sections of the hot-pressing and curing laminator can be equipped.

[0048] As Figure 14 shown, an electro-injection device with the following structure can also be equipped on the cooling section of the laminator, i.e., the cold press, including a conductive rod III 23, an electro-injection cylinder II 29, and an insulating plate II 24. The insulating plate II 24 is fixedly arranged on the cylinder head II of the electro-injection cylinder II 29. The conductive rod III 23 passes through the through hole provided on the insulating plate II 24 and is telescopically movably connected to the conductive rod III through this through hole. A spring III 10 is sleeved on the extended end of the conductive rod III 24 below the insulating plate II 24. An electrode III 25 is fixedly connected to the end of the extended end of the conductive rod III 23. A limit retaining ring II 31 is arranged on the other extended end of the conductive rod III 23. The insulating plate is located between the retaining ring and the spring III. One end of a flexible wire II 16 is connected to the conductive rod III 23, and the other end is connected to an electro-injection power supply. The electrode III 25 corresponds to the position of the power supply lead-out wire of the photovoltaic module 4 entering the laminator. Preferably, the length direction of the electrode III is perpendicular to the length direction of the power supply lead-out wire. The electrode can adopt the electrode structure of Embodiment 1 or the electrode structure of Embodiment 2.

[0049] The cooling section of the laminator includes a cooling section frame body. A cooling transmission device is arranged on the cooling section frame body to receive the hot photovoltaic module after lamination and curing, and cool the photovoltaic module through natural cooling or physical cooling. When using physical cooling, a fan is arranged on the cooling section frame body to dissipate heat from the photovoltaic module. During installation, a support beam 22 is installed on the frame body 2 of the cooling section of the laminator. The support beam is located above the cooling workbench. The position of the support beam is determined according to the position of the power supply lead-out wire of the photovoltaic module 4. The electro-injection cylinder II 29 is fixed on the support beam 22.

[0050] When electro-injection is required, the electro-injection cylinder II 29 drives the insulating plate II 24 to press downwards, thereby driving the electrode III 25 to press on the position of the power supply lead-out wire of the photovoltaic module 4. The height difference of the power supply lead-out wire of the photovoltaic module 4 can be adjusted through the spring III to ensure that the electrode III is tightly pressed against the power supply lead-out wire of the photovoltaic module 4. After the electro-injection is completed, the electro-injection cylinder II 29 retracts, thereby driving the injection electrode III 25 to disengage from the power supply lead-out wire of the photovoltaic module 4, and the electro-injection is completed.

[0051] Other driving devices can also be used to drive the insulating plate to reciprocate linearly as the electro-injection driving device, such as a lead screw-nut linear driving mechanism, a gear-rack driving mechanism, etc.

Claims

1. An electro-injection device for a laminator, wherein the laminator is a photovoltaic module laminator, characterized in that, It includes an electro-injection box, a terminal cover, a conductive rod, and at least two guide posts for connecting to positive and negative electrodes. Both the electro-injection box and the terminal cover are made of insulating materials. The terminal cover is fixedly arranged outside the cover body of the electro-injection box. The guide posts are arranged vertically, with one end fixedly connected to the inner side of the cover of the electro-injection box and the other end being a free end. A spring and an electrode are sleeved on the free end of the guide post. The spring is clamped between the electrode and the cover of the electro-injection box. The electrode is fixedly connected to the guide post through a locking and fixing device. A through hole for a flexible wire to pass through is provided on the terminal cover. One end of the conductive rod passes through the cover of the electro-injection box and is located inside the terminal cover, and the other end is located inside the electro-injection box. The end of the conductive rod located inside the electro-injection box is electrically connected to the electrode through a flexible wire, and the other end is connected to an electro-injection power supply through a flexible wire passing through the terminal cover. A connection flange is fixedly arranged on the outer periphery of the cover of the electro-injection box, and a sealing ring groove is arranged on the inner side of the connection flange.

2. The laminated electro-injection device according to claim 1, wherein The electrode is in the shape of a sheet-like long strip. A boss is arranged on one side thereof, and an electrode mounting hole for the conductive rod to pass through is arranged on the boss. A counterbore coaxial with the motor mounting hole is arranged on the side of the electrode opposite to the boss. The electrode passes through the electrode mounting hole, and the locking and fixing device is located in the counterbore.

3. The laminated electro-injection device according to claim 2, wherein, Two conductive rods are respectively provided corresponding to each positive electrode and negative electrode.

4. The laminated electro-injection device according to claim 1, wherein It includes an electro-injection box, a terminal cover, and at least two conductive rods connected to positive and negative electrodes. Both the electro-injection box and the terminal cover are made of insulating materials. The conductive rod passes through the cover of the electro-injection box, with one end located inside the electro-injection box and the other end located outside the cover of the electro-injection box. An electrode is fixedly arranged at the end of the conductive rod located inside the electro-injection box, and an insulating plate is fixedly connected to the end located outside the cover of the electro-injection box and passes through the insulating plate. The terminal cover is arranged outside the end of the conductive rod passing through the insulating plate and is fixedly connected to the insulating plate by covering the conductive rod. A flexible telescopic seal is fixedly arranged in a sealed manner between the insulating plate and the electro-injection box. The flexible telescopic seal is sleeved on the conductive rod. A spring is arranged on the same side of the insulating plate where the flexible telescopic seal is provided. One end of the spring is fixedly connected to the insulating plate, and the other end is fixedly connected to a linear reciprocating driving device. A connection flange is fixedly arranged on the outer periphery of the cover of the electro-injection box, and a sealing ring groove is arranged on the inner side of the connection flange.

5. The laminated electro-injection device according to claim 4, wherein The flexible telescopic seal is a corrugated pipe, and / or the linear reciprocating driving device is an electric cylinder.

6. The laminated electro-injection device according to claim 1, characterized in that, The electrode is in the shape of a sheet-like long strip, and two conductive rods are provided for each electrode.

7. Layer piezoelectric injection integrated photovoltaic module laminator, characterized in that, The laminator includes a lamination main machine for laminating and curing photovoltaic modules. The lamination main machine includes an upper pressing plate and a lamination workbench. The upper pressing plate can form a sealed chamber with the lamination workbench under the drive of a lifting drive device, and perform lamination on the photovoltaic modules. The lamination electric injection device described in any one of claims 1-3 is adopted. A plurality of electric injection box mounting through holes are provided on the upper pressing plate. The electric injection box is arranged in the electric injection box mounting through holes. The flange is located on the upper surface of the upper pressing plate. The electric injection box and the upper pressing plate are hermetically and fixedly connected through the flange and a seal. The position of each electrode corresponds to the position of the power lead of the photovoltaic module to be electrically injected. The terminal cover is located outside the upper pressing plate. In the standby state, the electrode protrudes outside the lower end surface of the upper pressing plate. When electric injection is performed, the electrode is flush with the lower end surface of the upper pressing plate.

8. The laminator for laminated piezoelectric injection integrated photovoltaic modules according to claim 7, characterized in that, The laminator includes a lamination main machine for laminating and curing photovoltaic modules. The lamination main machine includes an upper pressing plate and a lamination workbench. The upper pressing plate can form a sealed chamber with the lamination workbench under the drive of a lifting drive device, and perform lamination on the photovoltaic modules. The lamination electric injection device described in any one of claims 4-6 is adopted. A plurality of electric injection box mounting through holes are provided on the upper pressing plate. The electric injection box is arranged in the electric injection box mounting through holes. The flange is located on the upper surface of the upper pressing plate. The electric injection box and the upper pressing plate are hermetically and fixedly connected through the flange and a seal. A linear reciprocating drive device is fixedly arranged above the upper pressing plate. The terminal cover, the insulating plate and the flexible telescopic seal are all located above the upper pressing plate. One end of a flexible wire is fixedly connected to a conductive rod, and the other end passes through a through hole in the terminal cover and is fixedly connected to an electric injection power supply. In the standby state, the electrode is located above the lower end surface of the upper pressing plate and inside the electric injection box. When electric injection is performed, the electrode is flush with the lower end surface of the upper pressing plate.

9. The laminator for the layer piezoelectric injection integrated photovoltaic module according to claim 7, characterized in that, It further includes a cooling section. The cooling section is located at the rear side of the lamination main machine and receives the photovoltaic modules laminated and cured by the lamination main machine. It includes a cooling section workbench. A support beam is provided above the cooling section workbench. An electric injection device three is provided on the support beam. The electric injection device three adopts the electric injection device described in claims 1-3, or adopts the electric injection device described in any one of claims 4-6.

10. The laminator for the laminated piezoelectric injection integrated photovoltaic module according to claim 7, wherein, The electric injection device includes a conductive rod three, an electric injection drive device and an insulating plate two. The insulating plate two is fixedly arranged on the output end of the electric injection drive device. The conductive rod three passes through a through hole provided on the insulating plate two and is telescopically and movably connected to the through hole. A spring three is sleeved on the protruding end of the conductive rod three below the insulating plate two. An electrode three is fixedly connected to the end of the protruding end of the conductive rod three. A limit retaining ring two is provided on the other protruding end of the conductive rod three. The insulating plate two is located between the limit retaining ring and the spring three. One end of a flexible wire two is connected to the conductive rod three, and the other end is used for connecting to an electric injection power supply. The electrode three corresponds to the position of the power lead of the photovoltaic module entering the laminator. The length direction of the electrode three is perpendicular to the extension direction of the power lead.

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