A cooling device for an electroplating production line

CN224633591UActive Publication Date: 2026-08-14QINGDAO YUNCHUANG ENVIRONMENTAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-11
Publication Date
2026-08-14

AI Technical Summary

Technical Problem

[0002]电镀槽冷却工艺是指在电镀生产过程中通过外部冷却系统将电镀液温度控制在特定范围内的技术手段,电镀反应通常伴随电流的热效应(焦耳热)以及化学反应放热,导致槽液温度持续上升,而温度过高会加速添加剂分解、改变镀层结晶结构、引起阳极钝化或导致镀层粗糙、烧焦等问题,因此需通过冷却系统将热量及时移出,维持最佳工艺温度,从而保证镀层质量和沉积速率,然而缺乏搅拌结构的电镀槽在温度分布方面存在显著缺点,主要表现为槽内温度分布不均匀,形成垂直和水平方向的温度梯度,具体而言,槽液底部和靠近冷却元件的区域温度较低,而液面及远离冷却源的区域温度较高,这种温度不均匀性会直接导致镀层厚度和性能差异,进一步地可能引起镀层结合力下降、粗糙度增加甚至局部烧焦等问题,严重影响电镀一致性和产品质量,因此,我们希望设计一种‌电镀产线工艺冷却装置,从而解决这个问题

Benefits of technology

1、通过设置冷却机构,在电镀槽的内部设置有注入循环冷却液的中空主冷却管道,然后通过主冷却管道外侧的螺旋搅拌叶搅拌,从而避免了局部过热的分层现象,进一步地确保了电镀过程的温度均匀性,从而显著提升了镀层质量的稳定性与一致性。

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Abstract

This utility model provides a process cooling device for an electroplating production line, including an electroplating tank and a base. The electroplating tank is equipped with a main cooling mechanism inside, and an auxiliary cooling mechanism is also provided at the bottom of the electroplating tank. Compared with the prior art, this utility model has the following advantages: By setting up a cooling mechanism, a hollow main cooling pipe for injecting circulating coolant is provided inside the electroplating tank. Then, the main cooling pipe is stirred by spiral stirring blades on its outer side, thereby avoiding local overheating and stratification, further ensuring the temperature uniformity of the electroplating process, and thus significantly improving the stability and consistency of the plating quality. By setting up an auxiliary cooling mechanism, using an auxiliary cooling system formed by adding multiple auxiliary cooling pipes and merging with the main cooling pipe, higher precision temperature field control of the tank solution is achieved, as well as improved heat exchange capacity, thereby quickly offsetting the intense heat load generated by high current or continuous production.
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Description

Technical Field

[0001] This utility model belongs to the field of electroplating production line cooling, and specifically relates to a process cooling device for electroplating production lines. Background Technology

[0002] Electroplating bath cooling technology refers to the technical means of controlling the temperature of the electroplating solution within a specific range during the electroplating production process through an external cooling system. Electroplating reactions are usually accompanied by the thermal effect of the current (Joule heating) and the exothermic chemical reaction, causing the bath temperature to rise continuously. Excessive temperature can accelerate the decomposition of additives, change the crystal structure of the coating, cause anode passivation, or lead to problems such as rough coating and scorching. Therefore, a cooling system is needed to remove heat in a timely manner to maintain the optimal process temperature, thereby ensuring coating quality and deposition rate. However, electroplating baths lacking stirring structures have significant drawbacks in terms of temperature distribution, mainly manifested as uneven temperature distribution within the bath, forming temperature gradients in the vertical and horizontal directions. Specifically, the temperature is lower at the bottom of the bath and near the cooling elements, while the temperature is higher at the surface and away from the cooling source. This temperature unevenness directly leads to differences in coating thickness and performance, and may further cause problems such as decreased coating adhesion, increased roughness, or even localized scorching, seriously affecting electroplating consistency and product quality. Therefore, we hope to design a process cooling device for electroplating production lines to solve this problem. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a process cooling device for electroplating production lines to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a process cooling device for an electroplating production line, comprising: an electroplating tank and a base, wherein a main cooling mechanism is provided inside the electroplating tank, and an auxiliary cooling mechanism is also provided at the bottom of the electroplating tank; The main cooling mechanism includes a main cooling pipe, which is connected to the inside of the electroplating tank through a shaft seal. A spiral stirring blade is fixedly connected to the outside of the main cooling pipe, and connecting flanges are integrally fixedly connected to both the left and right ends of the main cooling pipe. The main cooling mechanism also includes a rotary joint, which is connected to the connecting flange by screws after being fitted with a sealing ring. By setting up the cooling mechanism, a hollow main cooling pipe for injecting circulating coolant is set inside the electroplating tank. Then, the main cooling pipe is stirred by a spiral stirring blade on the outside, thereby avoiding the phenomenon of local overheating and stratification, further ensuring the temperature uniformity of the electroplating process, and thus significantly improving the stability and consistency of the coating quality.

[0005] In a preferred embodiment, the base is disposed on the lower side of the electroplating tank, a drive motor is fixedly installed on the inner side of the base, a drive wheel is fixedly installed on the output shaft of the drive motor, a driven wheel is fixedly sleeved on the outer side of the main cooling pipe, and the driven wheel is connected to the drive wheel through a transmission belt.

[0006] In a preferred embodiment, a partition plate is fixedly connected to the inner side of the electroplating tank to separate the cooling zone from the electroplating working zone.

[0007] In a preferred embodiment, the auxiliary cooling mechanism includes several sets of auxiliary cooling pipes, and the left and right ends of the auxiliary cooling pipes are fixedly connected to a collecting pipe. By setting up the auxiliary cooling mechanism, and using the auxiliary cooling system formed by the addition of multiple auxiliary cooling pipes and the main cooling pipes, higher precision control of the tank liquid temperature field and improved heat exchange capacity are achieved, thereby quickly offsetting the severe heat load generated by high current or continuous production.

[0008] In a preferred embodiment, the auxiliary cooling mechanism includes two sets of T-joints, which are respectively screwed into the interior of two sets of rotary joints.

[0009] In a preferred embodiment, the auxiliary cooling mechanism further includes a connecting pipe, the two ends of which are fixedly connected to a manifold and a tee connector, respectively.

[0010] In a preferred embodiment, the connecting pipe is a high-temperature resistant metal braided hose.

[0011] In a preferred embodiment, both the main cooling pipe and the auxiliary cooling pipe are made of titanium metal, which has high corrosion resistance and good thermal conductivity.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are: 1. By setting up a cooling mechanism, a hollow main cooling pipe with circulating coolant is installed inside the electroplating tank. Then, the main cooling pipe is stirred by a spiral stirring blade on the outside, which avoids the phenomenon of local overheating and stratification, and further ensures the temperature uniformity of the electroplating process, thereby significantly improving the stability and consistency of the coating quality.

[0013] 2. By setting up an auxiliary cooling mechanism, and using an auxiliary cooling system formed by the convergence of multiple auxiliary cooling pipes with the main cooling pipe, higher precision temperature field control of the bath liquid is achieved, as well as improved heat exchange capacity, which can quickly offset the severe heat load generated by high current or continuous production. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional view of the overall structure of a cooling device for an electroplating production line according to the present invention.

[0016] Figure 2 This is a partially exploded view of the overall structure of a cooling device for an electroplating production line according to the present invention.

[0017] Figure 3 This is a front perspective view of the overall structure of a cooling device for an electroplating production line according to the present invention.

[0018] Figure 4 This is a partial three-dimensional view of a cooling device for an electroplating production line according to the present invention.

[0019] In the diagram, 1-electroplating tank, 2-main cooling mechanism, 3-auxiliary cooling mechanism, 4-base; 11-Separator; 21-Main cooling pipe, 22-spiral stirring blade, 23-connecting flange, 24-rotary joint, 25-drive motor, 26-drive wheel, 27-driven wheel; 31-Auxiliary cooling pipe, 32-Manifold pipe, 33-T-connector, 34-Connecting pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-3 As the first embodiment of this utility model: A process cooling device for an electroplating production line includes: an electroplating tank 1 and a base 4. The electroplating tank 1 is provided with a main cooling mechanism 2, and the bottom of the electroplating tank 1 is also provided with an auxiliary cooling mechanism 3. The main cooling mechanism 2 includes a main cooling pipe 21, which is connected to the inside of the electroplating tank 1 through a shaft seal. A spiral stirring blade 22 is fixedly connected to the outside of the main cooling pipe 21, and a connecting flange 23 is integrally fixedly connected to both the left and right ends of the main cooling pipe 21. The main cooling mechanism 2 also includes a rotary joint 24. The rotary joint 24 and the connecting flange 23 are connected by screws after being fitted together by a sealing ring. By setting up the cooling mechanism, a hollow main cooling pipe 21 for injecting circulating coolant is set inside the electroplating tank 1. Then, the main cooling pipe 21 is stirred by the spiral stirring blades 22 on the outside of the main cooling pipe 21, thereby avoiding the phenomenon of local overheating and stratification, further ensuring the temperature uniformity of the electroplating process, and thus significantly improving the stability and consistency of the coating quality.

[0022] The base 4 is located on the lower side of the electroplating tank 1. The drive motor 25 is fixedly installed on the inner side of the base 4. The drive wheel 26 is fixedly installed on the output shaft of the drive motor 25. The driven wheel 27 is fixedly sleeved on the outer side of the main cooling pipe 21. The driven wheel 27 and the drive wheel 26 are connected by a transmission belt.

[0023] A partition plate 11 is fixedly connected to the inner side of the electroplating tank 1 to separate the cooling area from the electroplating working area.

[0024] Specifically, the drive motor 25 is started first. The output shaft of the drive motor 25 drives the drive wheel 26 to rotate. The drive wheel 26 drives the driven wheel 27, which is fixedly sleeved on the main cooling pipe 21, to rotate through the transmission belt. This drives the entire main cooling pipe 21 and the spiral stirring blade 22 to operate stably. After being cooled by an external cooler, the circulating coolant is injected into the main cooling pipe 21 through the rotary joint 24. During the flow, it continuously exchanges heat with the surrounding tank liquid. The spiral stirring blade 22, which is fixedly connected to the outside of the main cooling pipe 21, rotates with the pipe. This not only enhances the convective heat transfer efficiency between the coolant and the wall of the main cooling pipe 21, but also generates forced eddies, effectively breaking the temperature stratification of the tank liquid and promoting a more uniform temperature distribution in the electroplating tank 1. The main cooling pipe 21 is made of titanium metal with high corrosion resistance and good thermal conductivity, ensuring long-term reliability and efficient heat conduction in corrosive environments. This integrated stirring and cooling structure significantly improves the stability and consistency of the plating quality.

[0025] Please see Figure 1 , Figure 2 as well as Figure 4 As a second embodiment of this utility model: The auxiliary cooling mechanism 3 includes several sets of auxiliary cooling pipes 31. Both ends of the auxiliary cooling pipes 31 are fixedly connected to a manifold 32. By setting up the auxiliary cooling mechanism 3, the auxiliary cooling system formed by the addition of multiple auxiliary cooling pipes 31 and the main cooling pipe 21 is used to achieve higher precision control of the tank liquid temperature field and improve the heat exchange capacity, thereby quickly offsetting the severe heat load generated by high current or continuous production.

[0026] The auxiliary cooling mechanism 3 includes two sets of three-way connectors 33, which are respectively screwed into the interior of two sets of rotary joints 24.

[0027] The auxiliary cooling mechanism 3 also includes a connecting pipe 34, with both ends of the connecting pipe 34 fixedly connected to the manifold 32 and the tee connector 33, respectively.

[0028] Connecting pipe 34 is a high-temperature resistant metal braided hose.

[0029] Both the main cooling pipe 21 and the auxiliary cooling pipe 31 are made of titanium metal, which has high corrosion resistance and good thermal conductivity.

[0030] Based on the above embodiments, further, as a supplement to the main cooling mechanism 2, the electroplating tank 1 is provided with several auxiliary cooling pipes 31. The left and right ends of the auxiliary cooling pipes 31 are connected in parallel through a manifold 32 to form an integrated cooling unit. The auxiliary cooling pipes 31 are connected to the main cooling circuit through a connecting pipe 34 of a high-temperature resistant metal braided hose. Specifically, the two ends of the connecting pipe 34 are fixedly connected to the manifold 32 and the three-way connector 33 screwed into the rotary joint 24, respectively, so that the coolant in the main and auxiliary cooling pipes can flow and circulate. The multiple auxiliary cooling pipes 31 distributed at the bottom of the tank greatly increase the heat exchange area, thereby achieving efficient cooling. Moreover, it works in conjunction with the main cooling mechanism 2 to achieve higher precision control of the temperature field of the tank liquid and can quickly respond to the drastic heat load changes related to high current electroplating or continuous production, thereby ensuring the high temperature stability of the entire electroplating process.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., 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. A process cooling device for an electroplating production line, comprising: The electroplating tank (1) and the base (4) are characterized in that a main cooling mechanism (2) is provided inside the electroplating tank (1), and an auxiliary cooling mechanism (3) is also provided at the bottom of the electroplating tank (1). The main cooling mechanism (2) includes a main cooling pipe (21), which is connected to the inside of the electroplating tank (1) through a shaft seal. A spiral stirring blade (22) is fixedly connected to the outside of the main cooling pipe (21), and a connecting flange (23) is integrally fixedly connected to both the left and right ends of the main cooling pipe (21). The main cooling mechanism (2) also includes a rotary joint (24), which is connected to the connecting flange (23) by screws after being fitted with a sealing ring.

2. The electroplating production line process cooling device as described in claim 1, characterized in that: The base (4) is located on the lower side of the electroplating tank (1). A drive motor (25) is fixedly installed on the inner side of the base (4). A drive wheel (26) is fixedly installed on the output shaft of the drive motor (25). A driven wheel (27) is fixedly sleeved on the outer side of the main cooling pipe (21). The driven wheel (27) and the drive wheel (26) are connected by a transmission belt.

3. The electroplating production line process cooling device as described in claim 1, characterized in that: A partition plate (11) is fixedly connected to the inner side of the electroplating tank (1) to separate the cooling area from the electroplating working area.

4. The electroplating production line process cooling device as described in claim 1, characterized in that: The auxiliary cooling mechanism (3) includes several sets of auxiliary cooling pipes (31), and the left and right ends of the auxiliary cooling pipes (31) are fixedly connected to a collecting pipe (32).

5. The electroplating production line process cooling device as described in claim 4, characterized in that: The auxiliary cooling mechanism (3) includes two sets of three-way connectors (33), which are respectively screwed into the interior of two sets of rotary joints (24).

6. The electroplating production line process cooling device as described in claim 4, characterized in that: The auxiliary cooling mechanism (3) also includes a connecting pipe (34), the two ends of which are fixedly connected to the manifold (32) and the tee connector (33), respectively.

7. The electroplating production line process cooling device as described in claim 6, characterized in that: The connecting pipe (34) is a high-temperature resistant metal braided hose.

8. The electroplating production line process cooling device as described in claim 1, characterized in that: The main cooling pipe (21) and the auxiliary cooling pipe (31) are both made of titanium metal with high corrosion resistance and good thermal conductivity.