A cooling system for a strip of tin-plated copper

Abstract

The utility model discloses a kind of busbar tinning cooling systems, the busbar tinning cooling system is installed in tin pool just above, comprising: cooling air duct, blower, ventilation duct and condenser, the cooling air duct includes air duct body and multiple nozzles, the air duct body is the hollow duct of two ends closed, the hollow duct front is provided with busbar cooling groove through first and last, multiple pairs of nozzle mounting holes through the hollow duct inside and outside are symmetrically arranged on the two side groove walls of the busbar cooling groove, a high-pressure nozzle is installed on each nozzle mounting hole, the hollow duct back is equipped with ventilation pipe interface and cooling air duct fixing mechanism, the ventilation duct is connected with the ventilation pipe interface and blower, the condenser is installed on the ventilation duct. By the above-mentioned mode, the utility model can improve the efficiency of busbar cooling, reduce the energy consumption of cooling process, reduce the operation cost of production line.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic module production, and in particular to a tin-plated cooling system for busbars. Background Technology

[0002] Busbars are an important component of solar photovoltaic modules, primarily used to connect multiple photovoltaic cells in series to form a battery string with a certain voltage and current, achieving the integration and optimization of photovoltaic cells. A key process in busbar production is tin plating on the surface of semi-finished copper strips using a tin bath. During the tin plating process, the tin layer on the surface of the copper strip is not completely solidified immediately after it leaves the tin bath. Therefore, the plating layer needs to be cooled and solidified before the copper strip enters the next guide roller. Traditionally, the cooling method involves placing multiple cooling fans continuously inside the busbar's path, using the fans to drive air convection for cooling. However, it has been found that this method results in dispersed airflow from the fans, failing to concentrate its effect on the busbar surface. To achieve a cooling effect, not only is the total fan power very high, but the fans also cause significant disturbance to the busbar during operation, leading to increased vibration amplitude during the busbar's movement. Utility Model Content

[0003] The main technical problem solved by this utility model is to provide a tin-plated cooling system for busbars, which can improve cooling efficiency and reduce energy consumption.

[0004] To solve the above-mentioned technical problems, the present invention provides a tin-plating cooling system for a manifold. The manifold cooling system is installed directly above the tin bath and includes a cooling duct, a blower, a ventilation duct, and a condenser. The cooling duct includes a duct body and multiple nozzles. The duct body is a hollow pipe closed at both ends. A manifold cooling groove is provided on the front of the hollow pipe, running from end to end. Multiple pairs of nozzle mounting holes, penetrating the inside and outside of the hollow pipe, are symmetrically arranged on the side walls of the manifold cooling groove. A high-pressure nozzle is installed in each nozzle mounting hole. A ventilation pipe interface and a cooling duct fixing mechanism are provided on the back of the hollow pipe. The ventilation duct connects the ventilation pipe interface and the blower. The condenser is installed on the ventilation duct.

[0005] In a preferred embodiment of this utility model, the length of the cooling duct is 1.5 to 1.8 meters. Two ventilation pipe interfaces are symmetrically arranged at the top and bottom of the back of the cooling duct, and a cooling duct fixing mechanism is provided on the outside of each ventilation pipe interface. The ventilation duct includes two branch pipes and one main pipe. The front ends of the two branch pipes are respectively connected to a ventilation pipe interface, and the rear ends are connected to the main pipe together. The condenser is installed on the main pipe.

[0006] In a preferred embodiment of this utility model, the depth of the cooling groove of the busbar is 50mm~80mm and the width is 100mm~200mm.

[0007] In a preferred embodiment of this utility model, there are no fewer than 15 pairs of nozzle mounting holes, which are evenly distributed from top to bottom along the cooling groove of the manifold.

[0008] In a preferred embodiment of this invention, the air pressure in the cooling duct is not less than 1.4 MPa.

[0009] The beneficial effects of this utility model are as follows: This utility model changes the original circular tube cooling to a semi-open cooling structure. In this way, when the busbar passes through the busbar cooling groove on the cooling air duct, the high-pressure cold air can simultaneously and centrally cool the busbar from both sides. On the one hand, the cooling air is concentrated and sprayed onto the surface of the busbar through high-pressure nozzles, resulting in a concentrated and efficient cooling effect. This significantly reduces the total power of each piece of equipment in the cooling process, saves the operating cost of the production line, and the busbar is subjected to force on both sides at the same time, which significantly reduces the amplitude during operation and significantly enhances the stability of operation. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the connection structure of a preferred embodiment of the present invention;

[0011] Figure 2 This is a schematic diagram of the duct structure in the illustrated embodiment;

[0012] Figure 3 This is a schematic diagram of the cross-sectional structure of the duct in the embodiment shown.

[0013] Figure 4 This is a schematic diagram of the nozzle structure in the embodiment shown;

[0014] The components in the attached diagram are labeled as follows:

[0015] 1. Busbar, 2. Cooling duct, 3. Ventilation duct, 4. Condenser, 5. Blower;

[0016] 201. Duct body, 202. High-pressure nozzle, 203. Ventilation duct interface, 204. Cooling duct fixing mechanism. Detailed Implementation

[0017] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0018] Please see Figures 1 to 4 The embodiments of this utility model include:

[0019] A tin-plating cooling system for a busbar is installed directly above a tin bath. The system includes a cooling duct 2, a blower 5, a ventilation duct 3, and a condenser 4. The cooling duct 2 comprises a duct body 201 and multiple high-pressure nozzles 202. The duct body 201 is a hollow pipe closed at both ends. A busbar cooling trough extending from end to end is provided on the front of the hollow pipe. Multiple pairs of nozzle mounting holes, penetrating the inside and outside of the hollow pipe, are symmetrically arranged on the two side walls of the cooling trough. Each nozzle mounting hole is fitted with a high-pressure nozzle 202. A ventilation pipe interface 203 and a cooling duct fixing mechanism 204 are provided on the back of the hollow pipe. The ventilation duct 3 connects the ventilation pipe interface 203 and the blower 5. The condenser 4 is installed on the ventilation duct 3. During actual production, the temperature difference between the condenser 4 and room temperature is controlled to be no less than 10°C, so that the cold air blowing onto the busbar 1, which has just left the tin bath, causes the tin layer on the surface of the busbar to rapidly decrease in temperature and solidify.

[0020] The length of the cooling duct 2 is 1.5 to 2.0 meters, and in practice, the length is generally 1840 mm. Two ventilation pipe interfaces 203 are symmetrically arranged at the top and bottom of the cooling duct 2. The distance between each ventilation pipe interface 203 and its corresponding end is 450 mm. A cooling duct fixing mechanism 204 is provided on the outside of each ventilation pipe interface 203. The ventilation duct 3 includes two branch pipes and one main pipe. The front ends of the two branch pipes are each connected to a ventilation pipe interface, and their rear ends are connected together to the main pipe. The condenser 4 is installed on the main pipe. To ensure cooling effect, the cooling duct 2 must be of sufficient length. Due to the relatively long cooling duct 2, to ensure pressure balance within the cooling duct 2, a ventilation pipe interface 203 is provided near the top and bottom ends of the cooling duct 2, connecting to the main pipe via branch pipes.

[0021] The depth of the cooling trough for the busbar is 50mm~80mm, and the width is 100mm~200mm. In actual implementation, the depth is 60mm and the width is 140mm. The reason for setting the dimensions of the cooling trough for the busbar in this way is that if the opening is too small, the busbar 1 will easily hit the high-pressure nozzles 202 extending from both sides, damaging the surface tin plating. If the opening is too large, the cooling air blowing onto the busbar 1 will not be strong enough, resulting in insufficient heat dissipation.

[0022] The nozzle mounting holes are no fewer than 15 pairs, evenly distributed from top to bottom along the cooling groove of the confluence belt. In actual implementation, a total of 21 pairs are set, with one pair of high-pressure nozzles 202 installed in each pair of nozzle mounting holes. All high-pressure nozzles 202 spray cooling air towards the center, creating a localized, highly efficient heat dissipation environment within the groove. In actual setup, if there are too few high-pressure nozzles 202, there will be localized areas with poor heat dissipation; if there are too many nozzles 202, some effects will overlap, reducing cost-effectiveness and requiring a high-power blower.

[0023] The air pressure in the cooling air duct 2 is not less than 1.4 MPa. In actual operation, it is generally controlled at around 1.5 MPa, because if the air pressure is insufficient, the air force sprayed from the high-pressure nozzle 202 will be small, the heat dissipation effect will be poor, and the surface coating cannot be cured in time before the confluence belt 1 enters the next guide wheel.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A busbar tin plating cooling system, wherein the busbar tin plating cooling system is installed directly above the tin bath, characterized in that, include: The cooling duct comprises a cooling air duct, a blower, a ventilation duct, and a condenser. The cooling air duct includes a duct body and multiple nozzles. The duct body is a hollow pipe closed at both ends. A cooling channel with a continuous flow strip is provided on the front of the hollow pipe. Multiple pairs of nozzle mounting holes with continuous flow strip are symmetrically arranged on the two side walls of the cooling channel, and a high-pressure nozzle is installed in each nozzle mounting hole. A ventilation pipe interface and a cooling air duct fixing mechanism are provided on the back of the hollow pipe. The ventilation duct connects the ventilation pipe interface and the blower. The condenser is installed on the ventilation duct.

2. The busbar tin-plating cooling system according to claim 1, characterized in that, The length of the cooling duct is 1.5 to 1.8 meters.

3. The busbar tin-plating cooling system according to claim 2, characterized in that, Two ventilation pipe interfaces are symmetrically arranged at the top and bottom of the cooling air duct. A cooling air duct fixing mechanism is set on the outside of each ventilation pipe interface. The ventilation duct includes two branch pipes and one main pipe. The front ends of the two branch pipes are respectively connected to a ventilation pipe interface, and the rear ends are connected to the main pipe together. The condenser is installed on the main pipe.

4. The busbar tin-plating cooling system according to claim 1, characterized in that, The busbar The depth of the cooling tank is 50mm~80mm, and the width is 100mm~200mm.

5. The busbar tin-plating cooling system according to claim 1, characterized in that, The nozzle mounting holes are no less than 15 pairs, and are evenly distributed from top to bottom along the cooling groove of the busbar.

6. The busbar tin-plating cooling system according to claim 1, characterized in that, The air pressure inside the cooling duct is not less than 1.4 MPa.

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