An annealing and cooling device for photovoltaic solder ribbon production
By designing an annealing cooling device for photovoltaic ribbon production, a temperature sensor and a hot and cold water tank are used to mix the coolant to maintain a stable temperature. Combined with a drying device to remove moisture, the problem of ribbon breakage caused by unstable cooling water temperature is solved, thus improving the annealing effect and performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGSHU FUERTONG METAL MATERIALS CO LTD
- Filing Date
- 2025-07-16
- Publication Date
- 2026-05-29
AI Technical Summary
During the annealing process of photovoltaic solder ribbon, the internal stress of the copper ribbon could not be effectively eliminated due to the unstable temperature of the cooling water, which affected the performance of the solder ribbon.
Design an annealing cooling device that uses a temperature sensor to monitor the coolant temperature in real time, uses a cold water tank and a hot water tank to mix the coolant to maintain a stable temperature, and combines it with a drying device to remove moisture, thus ensuring the annealing effect.
Stable control of coolant temperature was achieved, which improved the annealing effect of photovoltaic ribbon, reduced the risk of ribbon breakage, and enhanced performance.
Smart Images
Figure CN224299306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of photovoltaic welding strip production technology, specifically to an annealing and cooling device for photovoltaic welding strip production. Background Technology
[0002] Photovoltaic solder ribbon, also known as tin-plated copper ribbon or tin-coated copper ribbon, comes in two types: busbars and interconnect strips. It is used to connect photovoltaic module cells, playing a crucial role in conductivity and charge concentration. The production of photovoltaic solder ribbon mainly involves three stages: rolling, annealing, and tin plating. After copper wire is rolled into a flat copper strip, internal stress is generated, and the surface hardness is relatively high. This makes the resulting photovoltaic solder ribbon prone to breakage when welded to the solar panel. Annealing is used to eliminate the internal stress of the copper strip and reduce its yield strength.
[0003] When the weather is cold, the temperature of the cooling water in the cooling water tank is unstable, which can lead to poor annealing of the copper strip and thus affect the normal performance of the solder strip. Utility Model Content
[0004] The purpose of this invention is to provide an annealing cooling device for photovoltaic ribbon production, which has the characteristic of controlling the temperature of the coolant stably.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an annealing cooling device for photovoltaic welding strip production, comprising a support frame fixedly installed on the top of a base, wherein a cold water tank, a cooling water tank, and a hot water tank are fixedly installed sequentially from left to right on the top of the base; an anti-oxidation pipe is fixedly installed on the front side of the support frame; a temperature sensor is fixedly installed on the inner side of the cooling water tank; multiple cooling chips are fixedly installed on the outer side of the cold water tank, wherein the cold water tank cools the cooling water tank; an electric heating rod is fixedly installed on the inner side of the hot water tank, wherein the hot water tank heats the cooling water tank; an input wheel and an output wheel are rotatably installed on the front side of the support frame; a guide wheel is rotatably installed on the inner side of the cooling water tank; a drying cylinder for drying copper strips is fixedly installed on the front side of the support frame; and a fan for blowing air onto the drying cylinder is fixedly installed on the front side of the support frame.
[0006] To facilitate dehumidification by blowing air, in a preferred embodiment of the annealing cooling device for photovoltaic welding strip production according to this utility model, the output end of the fan is equipped with an air supply pipe, three annular pipes are fixedly installed on the inner side of the drying cylinder, and air nozzles are fixedly installed at the bottom of the annular pipes at an angle. The three ends of the air supply pipe away from the fan are respectively fixedly connected to the three annular pipes.
[0007] To facilitate mixed cooling, in a preferred embodiment of the annealing cooling device for photovoltaic welding strip production according to this utility model, a first connecting pipe is fixedly installed between the cold water tank and the cooling water tank. One end of the first connecting pipe passes through the left side of the cooling water tank and a first liquid outlet box is fixedly installed thereon. A first one-way valve is fixedly installed on the outside of the first connecting pipe.
[0008] To facilitate further mixing and cooling, as a preferred embodiment of the annealing cooling device for photovoltaic ribbon production according to this utility model, a first water pump is fixedly installed on the left side of the cooling water tank, a first liquid delivery pipe is installed at the output end of the first water pump, and one end of the first liquid delivery pipe is fixedly connected to the cooling water tank.
[0009] To facilitate mixing and heating, in a preferred embodiment of the annealing cooling device for photovoltaic welding strip production according to this utility model, a second connecting pipe is fixedly installed between the hot water tank and the cooling water tank. One end of the second connecting pipe passes through the right side of the cooling water tank and a second liquid outlet box is fixedly installed thereon. A second one-way valve is fixedly installed on the outside of the second connecting pipe.
[0010] To facilitate further mixing and heating, as a preferred embodiment of the annealing cooling device for photovoltaic ribbon production according to this utility model, a second water pump is fixedly installed on the right side of the cooling water tank, a second liquid delivery pipe is installed at the output end of the second water pump, and one end of the second liquid delivery pipe is fixedly connected to the hot water tank.
[0011] For ease of covering, in a preferred embodiment of the annealing cooling device for photovoltaic welding strip production according to this utility model, the top of the cooling water tank is rotatably mounted with a lid, and a handle is fixedly mounted on the upper surface of the lid.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] The temperature of the coolant in the cooling water tank is monitored in real time by a temperature sensor. When the coolant temperature is high, the coolant in the cold water tank is mixed with the coolant in the cooling water tank to adjust the temperature. When the coolant temperature is low, the coolant in the hot water tank is mixed with the coolant in the cooling water tank to adjust the temperature. This ensures that the coolant in the cooling water tank maintains a stable temperature, which is convenient for the annealing and cooling operation of the steel strip and improves the annealing effect. A fan blows air into the drying cylinder to dry the steel strip that passes through the drying cylinder and facilitate the removal of moisture. Attached Figure Description
[0014] Figure 1 This is a top-view perspective structural diagram of the present invention.
[0015] Figure 2 This is a top-down perspective view of the present invention.
[0016] Figure 3 This is a partial cross-sectional three-dimensional structural view of the present invention;
[0017] Figure 4 This is a partial three-dimensional structural diagram of the present utility model.
[0018] In the diagram: 1. Base; 2. Support frame; 3. Cooling water tank; 4. Tank cover; 5. Cold water tank; 6. Cooling element; 7. First water pump; 8. First infusion pipe; 9. First connecting pipe; 10. First one-way valve; 11. Hot water tank; 12. Second water pump; 13. Second infusion pipe; 14. Second connecting pipe; 15. Second one-way valve; 16. Electric heating rod; 17. Temperature sensor; 18. First liquid outlet box; 19. Second liquid outlet box; 20. Anti-oxidation pipe; 21. Drying tube; 22. Fan; 23. Gas supply pipe; 24. Ring pipe; 25. Air nozzle; 26. Input wheel; 27. Output wheel; 28. Guide wheel. Detailed Implementation
[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must be set in a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. In addition, in the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0020] Please see Figures 1 to 4An annealing cooling device for photovoltaic welding strip production includes a support frame 2 fixedly installed on the top of a base 1. From left to right, a cold water tank 5, a cooling water tank 3, and a hot water tank 11 are fixedly installed on the top of the base 1. An anti-oxidation pipe 20 is fixedly installed on the front side of the support frame 2. A temperature sensor 17 is fixedly installed on the inner side of the cooling water tank 3. Multiple cooling chips 6 are fixedly installed on the outer side of the cold water tank 5. The cold water tank 5 cools the cooling water tank 3. An electric heating rod 16 is fixedly installed on the inner side of the hot water tank 11. The hot water tank 11 heats the cooling water tank 3. An input wheel 26 and an output wheel 27 are rotatably installed on the front side of the support frame 2. A guide wheel 28 is rotatably installed on the inner side of the cooling water tank 3. A drying cylinder 21 for drying copper strips is fixedly installed on the front side of the support frame 2. A fan 22 for blowing air onto the drying cylinder 21 is fixedly installed on the front side of the support frame 2.
[0021] In this embodiment: by setting an anti-oxidation tube 20, it is easy to pass the steel strip through the nitrogen-filled anti-oxidation tube 20 to prevent the copper strip from oxidizing. By setting a temperature sensor 17, an electric heating rod 16, and a cooling element 6, it is easy to detect the temperature of the coolant in the cooling water tank 3 in real time through the temperature sensor 17. When the temperature of the coolant in the cooling water tank 3 is high, the low-temperature coolant in the cold water tank 5 is mixed with the coolant in the cooling water tank 3. When the temperature of the coolant in the cooling water tank 3 is low, the high-temperature coolant in the hot water tank 11 is mixed with the coolant in the cooling water tank 3. The temperature can be adjusted to ensure that the coolant in the cooling water tank 3 maintains a stable temperature, which is convenient for the steel strip to undergo annealing and cooling operations.
[0022] As a technical optimization of this utility model, an air supply pipe 23 is installed at the output end of the fan 22, and three annular pipes 24 are fixedly installed on the inner side of the drying cylinder 21. An air nozzle 25 is fixedly installed at the bottom of the annular pipe 24 at an angle. The three ends of the air supply pipe 23 away from the fan 22 are respectively fixedly connected to the three annular pipes 24.
[0023] In this embodiment: by setting up a fan 22 and an air drying cylinder 21, it is convenient to blow air into the annular pipe 24 inside the air drying cylinder 21 through the fan 22 and the air supply pipe 23, and blow the air through the air nozzle 25 to the outside of the steel belt passing through the air drying cylinder 21 to blow away the water, which facilitates the dehumidification operation of the steel belt.
[0024] As a technical optimization of this utility model, a first connecting pipe 9 is fixedly installed between the cold water tank 5 and the cooling water tank 3. One end of the first connecting pipe 9 passes through the left side of the cooling water tank 3 and a first liquid outlet box 18 is fixedly installed thereon. A first one-way valve 10 is fixedly installed on the outside of the first connecting pipe 9. A first water pump 7 is fixedly installed on the left side of the cooling water tank 3. A first liquid delivery pipe 8 is installed at the output end of the first water pump 7. One end of the first liquid delivery pipe 8 is fixedly connected to the cold water tank 5.
[0025] In this embodiment: by setting a first water pump 7 and a first one-way valve 10, it is convenient to pump the coolant in the cooling water tank 3 into the cold water tank 5 through the first water pump 7 and the first liquid delivery pipe 8. The low-temperature coolant in the cold water tank 5 flows back to the cooling water tank 3 through the first connecting pipe 9. The liquid flows from the cold water tank 5 to the cooling water tank 3 through the first one-way valve 10 for one-way delivery, which facilitates the mixing and cooling of the coolant in the cooling water tank 3, so that the coolant in the cooling water tank 3 can better cool the steel strip.
[0026] As a technical optimization of this utility model, a second connecting pipe 14 is fixedly installed between the hot water tank 11 and the cooling water tank 3. One end of the second connecting pipe 14 passes through the right side of the cooling water tank 3 and a second liquid outlet box 19 is fixedly installed thereon. A second one-way valve 15 is fixedly installed on the outside of the second connecting pipe 14. A second water pump 12 is fixedly installed on the right side of the cooling water tank 3. A second liquid delivery pipe 13 is installed at the output end of the second water pump 12. One end of the second liquid delivery pipe 13 is fixedly connected to the hot water tank 11.
[0027] In this embodiment: by setting a second water pump 12 and a second one-way valve 15, it is convenient to pump the coolant in the cooling water tank 3 into the hot water tank 11 through the second water pump 12 and the second liquid delivery pipe 13. The high-temperature coolant in the hot water tank 11 flows back to the cooling water tank 3 through the second connecting pipe 14. The liquid flows from the hot water tank 11 to the cooling water tank 3 through the second one-way valve 15 for one-way delivery, which facilitates the mixing and heating of the coolant in the cooling water tank 3, so that the coolant in the cooling water tank 3 can better cool the steel strip.
[0028] As a technical optimization of this utility model, a cover 4 is rotatably installed on the top of the cooling water tank 3, and a handle is fixedly installed on the upper surface of the cover 4.
[0029] In this embodiment: by providing a cover 4, it is easy to hold the handle and open the cover 4 from the top of the cooling water tank 3. Alternatively, the cover 4 can be placed on the top of the cooling water tank 3. By covering the top of the cooling water tank 3 with the cover 4, the heat loss of the coolant in the cooling water tank 3 is reduced.
[0030] Working principle: First, the temperature sensor 17 inside the cooling water tank 3 detects the coolant temperature in real time. When the temperature of the coolant in the cooling water tank 3 is high, the first water pump 7 and the first delivery pipe 8 draw the coolant from the cooling water tank 3 into the cold water tank 5. The low-temperature coolant in the cold water tank 5 flows back into the cooling water tank 3 through the first connecting pipe 9. The first one-way valve 10 facilitates the one-way transfer of liquid from the cold water tank 5 to the cooling water tank 3, allowing for mixing and cooling of the coolant in the cooling water tank 3. When the temperature of the coolant in the cooling water tank 3 is low, the second water pump 12 and the second delivery pipe 13... The coolant in water tank 3 is pumped into hot water tank 11. The high-temperature coolant in hot water tank 11 flows back to cooling water tank 3 through the second connecting pipe 14. The liquid is unidirectionally transported from hot water tank 11 to cooling water tank 3 through the second one-way valve 15, which facilitates mixing and heating of the coolant in cooling water tank 3. This allows the coolant in cooling water tank 3 to better cool the steel strip. After the steel strip is cooled, air is blown into the annular pipe 24 in the drying cylinder 21 through the fan 22 and air supply pipe 23. The air is blown through the nozzle 25 to the outside of the steel strip passing through the drying cylinder 21 to blow away the water, which facilitates the dehumidification of the steel strip.
[0031] All standard parts used in this utility model can be purchased from the market. Irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as riveting and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art. All electrical equipment in this utility model is powered by an external power source.
[0032] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An annealing cooling device for photovoltaic ribbon production, comprising a support frame (2) fixedly mounted on the top of a base (1), characterized in that: The base (1) is fixedly mounted with a cold water tank (5), a cooling water tank (3), and a hot water tank (11) from left to right on its top. An anti-oxidation pipe (20) is fixedly mounted on the front side of the support frame (2). A temperature sensor (17) is fixedly mounted on the inner side of the cooling water tank (3). Multiple cooling coils (6) are fixedly mounted on the outer side of the cold water tank (5). The cold water tank (5) cools the cooling water tank (3). A temperature sensor (17) is fixedly mounted on the inner side of the hot water tank (11). An electric heating rod (16) is provided. The hot water tank (11) heats the cooling water tank (3). An input wheel (26) and an output wheel (27) are rotatably installed on the front side of the support frame (2). A guide wheel (28) is rotatably installed on the inner side of the cooling water tank (3). A drying cylinder (21) for drying copper strips is fixedly installed on the front side of the support frame (2). A fan (22) for blowing air onto the drying cylinder (21) is fixedly installed on the front side of the support frame (2).
2. The annealing cooling device for photovoltaic ribbon production according to claim 1, characterized in that: The output end of the fan (22) is equipped with an air supply pipe (23), and three annular pipes (24) are fixedly installed on the inner side of the air drying cylinder (21). An air nozzle (25) is fixedly installed at the bottom of the annular pipe (24) at an angle. The three ends of the air supply pipe (23) away from the fan (22) are fixedly connected to the three annular pipes (24) respectively.
3. The annealing cooling device for photovoltaic ribbon production according to claim 1, characterized in that: A first connecting pipe (9) is fixedly installed between the cold water tank (5) and the cooling water tank (3). One end of the first connecting pipe (9) passes through the left side of the cooling water tank (3) and a first liquid outlet box (18) is fixedly installed thereon. A first one-way valve (10) is fixedly installed on the outside of the first connecting pipe (9).
4. An annealing cooling device for photovoltaic ribbon production according to claim 1, characterized in that: A first water pump (7) is fixedly installed on the left side of the cooling water tank (3). A first infusion pipe (8) is installed at the output end of the first water pump (7). One end of the first infusion pipe (8) is fixedly connected to the cold water tank (5).
5. An annealing cooling device for photovoltaic ribbon production according to claim 1, characterized in that: A second connecting pipe (14) is fixedly installed between the hot water tank (11) and the cooling water tank (3). One end of the second connecting pipe (14) passes through the right side of the cooling water tank (3) and a second liquid outlet box (19) is fixedly installed thereon. A second one-way valve (15) is fixedly installed on the outside of the second connecting pipe (14).
6. An annealing cooling device for photovoltaic ribbon production according to claim 1, characterized in that: A second water pump (12) is fixedly installed on the right side of the cooling water tank (3). A second infusion pipe (13) is installed at the output end of the second water pump (12). One end of the second infusion pipe (13) is fixedly connected to the hot water tank (11).
7. An annealing cooling device for photovoltaic ribbon production according to claim 1, characterized in that: The top of the cooling water tank (3) is rotatably mounted with a tank cover (4), and a handle is fixedly mounted on the upper surface of the tank cover (4).