Curing lamp and curing equipment

Abstract

The curing lamp comprises a shell, an ultraviolet light source and a light reflecting piece, the shell is provided with a containing cavity, the containing cavity is provided with an opening, the opening is used for allowing the end portion of a solar cell to enter or exit from the containing cavity, the ultraviolet light source is arranged in the containing cavity, the light reflecting piece is arranged in the containing cavity, and the ultraviolet light source is arranged in the containing cavity. And the reflecting part is used for reflecting the ultraviolet light so as to gather the ultraviolet light at the end part of the solar cell, so that the ultraviolet light can be gathered to prevent the redundant ultraviolet light from irradiating the middle position of the solar cell, thereby preventing the photosensitive ink of the solar cell from being exposed and cured, and facilitating the removal of a mask on the surface of the solar cell.

Description

Technical Field

[0001] The utility model relates to the technical field of curing lamps, in particular to a curing lamp and curing equipment. Background Art

[0002] During the copper manufacturing process of solar cells, the edges and sides of the solar cells cannot be covered by photosensitive ink after printing. Since solar cells are conductors, copper grows on the sides of the solar cells during the electroplating process. The copper growing on the front and back of the solar cells causes the efficiency of the solar cells to decrease, and the copper on the sides conducts the NP side of the cell, so that the electrons of the solar cells no longer pass through the PN junction, causing the product to fail. To solve this problem, an insulating layer needs to be added to the end of the solar cell to cover the copper on the side of the solar cell. This process is referred to as edge wrapping.

[0003] Conventional curing lamps directly irradiate the solar cell. The irradiation area of ​​the curing lamp is the insulating layer on the side and the edges of the front and back sides. Since the width of the front and back sides of the solar cell that needs to be irradiated is only 0.2-0.4mm, the ultraviolet light directly irradiates the side of the solar cell, and the excess ultraviolet light irradiates the surface of the solar cell, exposing and curing the photosensitive ink of the solar cell, resulting in poor film removal. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a curing lamp that can prevent the photosensitive ink of the solar cell from being exposed and cured.

[0005] The utility model also provides a curing device having the curing lamp.

[0006] According to the first aspect of the present invention, a curing lamp includes a shell, an ultraviolet light source and a reflector. The shell is provided with a housing cavity, the housing cavity has an opening, and the opening is used for allowing the end of the solar cell to enter or exit the housing cavity. The ultraviolet light source is arranged in the housing cavity, and the reflector is arranged in the housing cavity. The reflector is used to reflect ultraviolet light to concentrate the ultraviolet light on the end of the solar cell.

[0007] The curing lamp according to the first aspect of the present invention has at least the following beneficial effects:

[0008] When the curing lamp is working, the end of the solar cell enters the accommodating cavity through the opening, and then the ultraviolet light emitted by the ultraviolet light source is concentratedly irradiated to the end of the solar cell through the reflective element to avoid excess ultraviolet light irradiating the middle position of the solar cell, thereby preventing the photosensitive ink of the solar cell from being exposed and cured, so as to facilitate the removal of the mask on the surface of the solar cell.

[0009] According to some embodiments of the utility model, the reflector includes an upper reflector and a lower reflector, the ultraviolet light source is located between the upper reflector and the lower reflector, the upper reflector can concentrate ultraviolet rays on the upper surface of the end of the solar cell, and the lower reflector can concentrate ultraviolet rays on the lower surface of the end of the solar cell.

[0010] According to some embodiments of the present invention, the upper reflective element and the lower reflective element are symmetrically arranged along the horizontal plane where the ultraviolet light source is located.

[0011] According to some embodiments of the utility model, a heat dissipation component is also included, which is arranged on the shell and is used to discharge the heat generated by the ultraviolet light source.

[0012] According to some embodiments of the utility model, the heat dissipation assembly includes an air intake fan and an exhaust fan, the accommodating cavity has an air inlet hole and an air outlet hole, the air intake fan is arranged at the air inlet hole, and the exhaust fan is arranged at the air outlet hole.

[0013] According to some embodiments of the present invention, a shading member is also included, wherein the shading member is disposed on the housing and covers a portion of the opening.

[0014] According to some embodiments of the present invention, the shielding area of ​​the shading member is adjustable to adjust the opening area of ​​the opening.

[0015] According to some embodiments of the present invention, the ultraviolet light source is configured in plurality, and the plurality of ultraviolet light sources are arranged at intervals along the length direction of the opening.

[0016] According to the second aspect of the present invention, the curing equipment comprises a frame, a conveyor belt assembly and the curing lamp described in the above embodiment, wherein the conveyor belt assembly and the curing lamp are both arranged on the frame, the conveyor belt assembly is used to convey the solar cell sheets, the conveying direction of the conveyor belt assembly is taken as a first direction, and the opening passes through the shell along the first direction.

[0017] According to some embodiments of the utility model, two curing lamps are configured, and the two curing lamps are arranged opposite to each other along the width direction of the conveyor belt assembly, one of the two curing lamps is used to cure one end of the solar cell, and the other is used to cure the other end of the solar cell.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 This is a schematic diagram of the internal structure of a curing lamp according to an embodiment of the utility model;

[0021] Figure 2 A side view of a curing lamp according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of a curing device according to an embodiment of the utility model;

[0023] Figure 4 It is a top view of the curing device according to an embodiment of the utility model.

[0024] Reference numerals:

[0025] The housing 100 , the accommodating cavity 110 , the opening 120 , the ultraviolet light source 200 , the upper reflector 310 , the lower reflector 320 , the upper shading member 410 , the lower shading member 420 , the intake fan 510 , the exhaust fan 520 , the solar cell 600 , and the conveyor belt assembly 700 . DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the technical field can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific content of the technical solution.

[0030] As mentioned above, in the related art, during the copper manufacturing process of solar cells, the edges and sides of the solar cells cannot be covered by photosensitive ink after printing. Since solar cells are conductors, copper grows on the sides of the solar cells during the electroplating process. The copper grown on the front and back sides of the solar cells causes the efficiency of the solar cells to decrease, and the copper on the sides conducts the NP side of the cell, so that the electrons of the solar cells no longer pass through the PN junction, causing the product to fail. To solve this problem, a layer of insulating material needs to be added to the end of the solar cell to cover the copper on the side of the solar cell. This process is referred to as hemming. After the hemming process is completed, the middle position of the solar cell is coated with photosensitive ink, and the end of the solar cell is provided with an insulating layer formed by insulating material, which can be cured under the irradiation of a curing lamp.

[0031] Conventional curing lamps directly irradiate the solar cell. The irradiation area of ​​the curing lamp is the insulating layer on the side and the edges of the front and back sides. Since the width of the front and back sides of the solar cell that needs to be irradiated is only 0.2-0.4mm, the ultraviolet light directly irradiates the side of the solar cell, and the excess ultraviolet light irradiates the surface of the solar cell, exposing and curing the photosensitive ink of the solar cell, resulting in poor film removal.

[0032] Based on this, the utility model sets a reflector to reflect and concentrate ultraviolet light, so that the width of the end of the solar cell irradiated by ultraviolet light is reduced, which can prevent ultraviolet light from irradiating the photosensitive ink of the solar cell, thereby preventing the photosensitive ink of the solar cell from being exposed and cured.

[0033] Under the irradiation of the curing lamp, the photoinitiator in the insulating layer absorbs ultraviolet photons of a specific wavelength and is excited to an excited state, forming free radicals or cations. These active groups then initiate polymerization and cross-linking reactions, thereby converting the liquid resin material into a solid high molecular polymer in a short time.

[0034] Reference Figure 1 , Figure 2According to the curing lamp of the first embodiment of the utility model, the housing 100 includes a housing 110, an ultraviolet light source 200 and a reflector. The housing 100 is provided with a housing cavity 110, and the housing cavity 110 has an opening 120. The opening 120 is used for the end of the solar cell 600 to enter or exit the housing cavity 110. The ultraviolet light source 200 is arranged in the housing cavity 110, and the reflector is arranged in the housing cavity 110. The reflector is used to reflect ultraviolet light to concentrate the ultraviolet light at the end of the solar cell 600. In this way, the ultraviolet light can be concentrated to avoid excess ultraviolet light from irradiating the middle position of the solar cell 600, thereby preventing the photosensitive ink of the solar cell 600 from being exposed and cured, so as to facilitate the removal of the mask on the surface of the solar cell 600.

[0035] Specifically, when the curing lamp is working, the end of the solar cell 600 enters the accommodating cavity 110 through the opening 120, and then the ultraviolet light emitted by the ultraviolet light source 200 is concentratedly irradiated to the end of the solar cell 600 through the reflective element to avoid excess ultraviolet light irradiating the middle position of the solar cell 600, thereby preventing the photosensitive ink of the solar cell 600 from being exposed and cured, so as to facilitate the removal of the mask on the surface of the solar cell 600.

[0036] It should be noted that the reflector does not focus all the ultraviolet light on the end of the solar cell 600 , and a small portion of the ultraviolet light is still irradiated to another position, which will not be described in detail here.

[0037] In some embodiments of the utility model, the reflector includes an upper reflector 310 and a lower reflector 320, and the ultraviolet light source 200 is located between the upper reflector 310 and the lower reflector 320. The upper reflector 310 can concentrate ultraviolet rays on the upper surface of the end of the solar cell 600, and the lower reflector 320 can concentrate ultraviolet rays on the lower surface of the end of the solar cell 600. No additional curing lamps are required, which can save parts costs and thus reduce the production cost of the curing device.

[0038] Specifically, from top to bottom, the upper reflector 310, the ultraviolet light source 200 and the lower reflector 320 are spaced apart in sequence. In the horizontal direction, the upper reflector 310 and the lower reflector 320 are spaced apart from the ultraviolet light source 200. Part of the ultraviolet light emitted by the ultraviolet light source 200 can be refracted by the upper reflector 310 and gathered to the upper surface of the end of the solar cell 600, and another part of the ultraviolet light emitted by the ultraviolet light source 200 can be refracted by the lower reflector 320 and gathered to the upper surface of the end of the solar cell 600, so that a single curing lamp can cure the upper and lower surfaces of the end of the solar cell 600, without the need for additional curing lamps, which can save parts costs and thus reduce the production and manufacturing costs of the curing device.

[0039] In some embodiments of the utility model, the ultraviolet light source 200 is located at the lower left of the upper reflector 310, and the ultraviolet light source 200 is located at the upper left of the lower reflector 320. Along the horizontal plane where the ultraviolet light source 200 is located, the upper reflector 310 and the lower reflector 320 are symmetrically arranged, so that the irradiation area of ​​the ultraviolet light on the upper surface of the end of the solar cell 600 is the same as the irradiation area of ​​the ultraviolet light on the lower surface of the end of the solar cell 600, which can improve the consistency of the solar cell.

[0040] Of course, in some specific embodiments, the reflection angle of the upper reflective element 310 or the lower reflective element 320 can be changed so that the irradiation area of ​​the ultraviolet light on the upper surface of the end of the solar cell 600 is different from the irradiation area of ​​the ultraviolet light on the lower surface of the end of the solar cell 600, which is not limited here.

[0041] In some embodiments of the utility model, a heat dissipation component is also included. The heat dissipation component is arranged in the shell 100. The heat dissipation component is used to discharge the heat generated by the ultraviolet light source 200 and can cool the ultraviolet light source 200 so that the ultraviolet light source 200 is in a normal working environment, thereby ensuring the normal operation of the curing device.

[0042] In some embodiments of the utility model, the heat dissipation assembly includes an air intake fan 510 and an exhaust fan 520, and the accommodating chamber 110 has an air inlet hole and an air outlet hole. The air intake fan 510 is arranged at the air inlet hole, and the exhaust fan 520 is arranged at the air outlet hole, which can improve the heat dissipation efficiency to ensure the normal operation of the curing device.

[0043] Specifically, during heat dissipation, the intake fan 510 inhales low-temperature air to exchange heat with the ultraviolet light source 200, and the exhaust fan 520 discharges the air in the accommodating chamber 110 to the outside, which can improve the heat dissipation efficiency to ensure the normal operation of the curing device.

[0044] It should be noted that the exhaust fan 520 may be provided only on the housing 100 to discharge the heat generated by the ultraviolet light source 200, which will not be described in detail herein.

[0045] Of course, in some specific embodiments, the heat dissipation component can also cool the ultraviolet light source 200 by water cooling or semiconductor cooling sheet. Specifically, when the heat dissipation component is configured as a semiconductor cooling sheet, the cold end of the semiconductor cooling sheet is connected to the ultraviolet light source 200, which can cool the ultraviolet light source 200, which will not be described in detail here.

[0046] In some embodiments of the present invention, a shading member is further included. The shading member is disposed on the housing 100 and blocks part of the opening 120 to prevent ultraviolet light from irradiating the photosensitive ink of the solar cell 600, thereby reducing the probability of defective products.

[0047] Specifically, the shading member is a long strip structure, and the shading member is extended along the length direction of the opening 120, so that the width of the opening 120 is constant, which can prevent ultraviolet light from irradiating the photosensitive ink of the solar cell 600 and reduce the probability of defective products.

[0048] It should be pointed out that the shading member includes an upper shading member 410 and a lower shading member 420. The upper shading member 410 is used to block the upper side of the opening 120, and the lower shading member 420 is used to block the lower side of the opening 120, which can prevent ultraviolet light from irradiating the photosensitive ink of the solar cell 600, thereby improving the yield rate of the solar cell 600.

[0049] In some embodiments of the present invention, the shielding area of ​​the shading member is adjustable to adjust the opening area of ​​the opening 120, so as to be applicable to solar cells 600 of different thicknesses and improve the versatility of the curing lamp.

[0050] Specifically, when the thickness of the solar cell 600 is relatively thick, the shading member can be moved to increase the opening area of ​​the opening 120. When the thickness of the solar cell 600 is relatively thin, the shading member can be moved in the opposite direction to reduce the opening area of ​​the opening 120. This makes it possible to adapt to solar cells 600 of different thicknesses and improve the versatility of the curing lamp.

[0051] It should be pointed out that the shading member can be fixed to the shell 100 by bolting. The shading member is provided with a waist-shaped hole, and the bolts are passed through the waist-shaped hole. When the position of the shading member needs to be adjusted, the operator can loosen the bolts to adjust the position of the shading member, and then adjust the open area. It will not be described in detail here.

[0052] It should be pointed out that the shading area of ​​the shading member can also be adjusted by adjusting the knob, which will not be described in detail here.

[0053] Reference, Figure 4 In some embodiments of the present invention, a plurality of ultraviolet light sources 200 are provided, and the plurality of ultraviolet light sources 200 are spaced apart along the length direction of the opening 120 .

[0054] Reference Figure 3 , Figure 4 According to the curing device of the second embodiment of the utility model, it includes a frame, a conveyor belt assembly 700 and a curing lamp of the first embodiment of the utility model. The conveyor belt assembly 700 and the curing lamp are both arranged on the frame. The conveyor belt assembly 700 is used to convey the solar cell 600. The conveying direction of the conveyor belt assembly 700 is the first direction. The opening 120 penetrates the shell 100 along the first direction. When the end of the solar cell 600 passes through the opening 120, the end of the solar cell 600 can be cured by the curing lamp, and the end of the solar cell 600 can be automatically cured.

[0055] In some embodiments of the utility model, two curing lamps are configured, and the two curing lamps are arranged opposite to each other along the width direction of the conveyor belt assembly 700. One of the two curing lamps is used to cure one end of the solar cell 600, and the other is used to cure the other end of the solar cell 600. The insulating layers at both ends of the solar cell 600 can be cured at the same time, which can improve the curing efficiency of the curing device.

[0056] Specifically, one of the two curing lamps is arranged on one side of the conveyor belt assembly 700 in the width direction to cure one end of the solar cell 600, and the other is arranged on the other side of the conveyor belt assembly 700 in the width direction to cure the other end of the solar cell 600. The insulating layers at both ends of the solar cell 600 can be cured at the same time, thereby improving the curing efficiency of the curing device.

[0057] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A curing lamp for curing the end of a solar cell, characterized in that: include: The housing is provided with a receiving cavity, wherein the receiving cavity has an opening, and the opening is used for the end of the solar cell to enter or exit the receiving cavity; An ultraviolet light source is disposed in the accommodating cavity; A reflector is arranged in the accommodating cavity, and is used for reflecting ultraviolet light so as to gather the ultraviolet light at the end of the solar cell sheet.

2. The curing lamp according to claim 1, characterized in that The reflector includes an upper reflector and a lower reflector, the ultraviolet light source is located between the upper reflector and the lower reflector, the upper reflector can gather ultraviolet light on the upper surface of the end of the solar cell, and the lower reflector can gather ultraviolet light on the lower surface of the end of the solar cell.

3. The curing lamp according to claim 2, characterized in that Along the horizontal plane where the ultraviolet light source is located, the upper reflective element and the lower reflective element are symmetrically arranged.

4. The curing lamp according to claim 1, characterized in that It also includes a heat dissipation component, which is arranged on the shell and is used to discharge the heat generated by the ultraviolet light source.

5. The curing lamp according to claim 4, characterized in that The heat dissipation component includes an air intake fan and an exhaust fan, the accommodating cavity has an air intake hole and an air outlet hole, the air intake fan is arranged at the air intake hole, and the exhaust fan is arranged at the air outlet hole.

6. The curing lamp according to claim 1, characterized in that It also includes a shading member, which is arranged on the shell and blocks part of the opening.

7. The curing lamp according to claim 6, characterized in that The shielding area of ​​the shading member is adjustable to adjust the opening area of ​​the opening.

8. The curing lamp according to claim 1, characterized in that A plurality of ultraviolet light sources are provided, and the plurality of ultraviolet light sources are arranged at intervals along the length direction of the opening.

9. A curing device, characterized in that: It comprises a frame, a conveyor belt assembly and a curing lamp as described in any one of claims 1 to 8, wherein the conveyor belt assembly and the curing lamp are both arranged on the frame, the conveyor belt assembly is used to convey the solar cell sheets, the conveying direction of the conveyor belt assembly is taken as a first direction, and the opening passes through the shell along the first direction.

10. The curing device according to claim 9, characterized in that: There are two curing lamps, which are arranged opposite to each other along the width direction of the conveyor belt assembly. One of the two curing lamps is used to cure one end of the solar cell sheet, and the other is used to cure the other end of the solar cell sheet.

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