Electroplating oven for preventing copper surface area from being polluted and oxidized during tin electroplating

By installing processing and temperature control components in the electroplating oven, gas circulation filtration and purification are achieved, solving the problem of pollutant accumulation during the electroplating process and improving equipment operation stability and electroplating efficiency.

CN223866811UActive Publication Date: 2026-02-03SHANGHAI WELNEW MICRO ELECTRONICS
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Patent Information

Application Number
CN202520485184.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-02-03
Estimated Expiration
2035-03-19

AI Technical Summary

Technical Problem

Harmful gases and particulate matter generated during the electroplating process in electroplating ovens cannot be effectively filtered and recycled, resulting in high equipment maintenance costs, high failure rates, and affecting equipment lifespan and operation.

Method used

An electroplating oven with processing components was designed, including a filter tank, filter frame, activated carbon filter plate, dehumidifier and cleaning brush, to achieve gas circulation filtration and purification. Combined with temperature control components and placement components, it ensures that the electroplated parts are electroplated at a suitable temperature to prevent copper surface oxidation.

Benefits of technology

It effectively reduces humidity inside the oven, reduces the risk of copper surface oxidation, improves energy efficiency, keeps the oven environment clean, reduces maintenance costs and failure rate, and improves the efficiency of electroplated parts entering and leaving the oven and the accuracy of temperature control.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223866811U_ABST
Patent Text Reader

Abstract

The utility model discloses an electroplating oven for preventing a copper surface area from being polluted and oxidized during tin electroplating, which comprises an oven body, placing components arranged on two sides of the inner wall of the oven body, a temperature control component arranged on the inner wall of the oven body, a processing component connected below the oven body, and a cleaning component arranged on one side of the processing component. According to the drying oven, the humidity in the drying oven can be effectively reduced, the risk of copper surface oxidation can be reduced, pollutants in air can be continuously removed, cyclic utilization of gas in the drying oven is achieved, the energy utilization efficiency is improved, meanwhile, the cleaning assembly is arranged on the treatment assembly, the air humidity can be reduced, dust, impurity particles and organic gas can be adsorbed, and the environment is protected. The environment in the oven is kept clean, the oxidation risk of a copper surface is reduced, the filter element plate can be regularly wiped and cleaned, the situation that the filter efficiency of the filter screen is reduced due to pollutant blockage is prevented, the workload and frequency of manual cleaning are reduced, and the maintenance cost and the failure rate are reduced.
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Description

Technical Field

[0001] This utility model relates to the field of electroplating oven technology, specifically to an electroplating oven that prevents contamination and oxidation of the copper surface area during tin electroplating. Background Technology

[0002] Electroplating ovens are devices used to address the problem of copper surface contamination and oxidation during the electroplating process of IGBT modules. These ovens employ a series of technical measures to ensure cleanliness and efficiency during the electroplating process, thereby improving product quality and reliability.

[0003] However, electroplating ovens generate a large amount of harmful gases and particulate matter during the electroplating process. If these pollutants are not filtered and circulated in a timely and effective manner, they will accumulate inside the oven, which will easily increase the maintenance cost and failure rate of the equipment. Furthermore, the long-term use of electroplating ovens can easily accumulate pollutants, affecting their normal operation and service life.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes an electroplating oven to prevent contamination and oxidation of the copper surface area during tin electroplating, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] An electroplating oven for preventing contamination and oxidation of the copper surface during tin electroplating includes a chamber, placement components on both sides of the inner wall of the chamber, a temperature control component on the inner wall of the chamber, a processing component connected to the bottom of the chamber, a cleaning component on one side of the processing component, the cleaning component including multiple filter tanks opened on one side of the processing component, filter frames installed on the inner wall of the filter tanks, filter element plates and activated carbon filter plates respectively installed on the inner wall of the filter frames, a dehumidifier installed on the inner wall of the processing component, and an electric telescopic rod two installed on the inner wall of the processing component. One end of the electric telescopic rod two is equipped with a cleaning brush, and one side of the cleaning brush contacts one side of the filter element plate.

[0008] Furthermore, in order to better place IGBT module products, the placement components include placement openings on both sides of the enclosure, a conveyor installed on the inner wall of the placement opening, sealing frames fixed on both sides of the enclosure, an electric telescopic rod on the upper inner wall of the sealing frame, a sealing plate fixed to one end of the electric telescopic rod, the two sides of the sealing plate connected to the inner wall of the sealing frame, and one side of the sealing plate contacting one side of the enclosure.

[0009] Furthermore, in order to better assist in temperature control of IGBT module products, the temperature control component includes multiple mounting bases located on the lower part of the inner wall of the enclosure, electric heating tubes on opposite sides of the mounting bases, multiple temperature and humidity sensors installed on the inner wall of the enclosure, and a temperature controller installed on the top of the enclosure.

[0010] Furthermore, in order to better transport and process the gas generated during the processing of IGBT module products, the processing component includes an auxiliary cover penetrating the bottom of the housing. The auxiliary cover is positioned opposite the electric heating tube. An inlet pipe and an outlet pipe respectively penetrate the bottom of the auxiliary cover and the housing. A control valve is installed at one end of the inlet pipe and the outlet pipe. One end of the control valve is connected to a circulating filter cartridge. One end of one of the circulating filter cartridges is connected to a conveying pipe. A control valve is installed at one end of the conveying pipe. A circulation box is penetrating one end of the circulating filter cartridge. A circulation pump is installed on the inner wall of the circulation box. The two ends of the circulation pump are connected to one end of the circulating filter cartridge through connecting pipes. A filter tank is opened on one side of the circulating filter cartridge. The inner wall of the circulating filter cartridge is connected to a dehumidifier and an electric telescopic rod.

[0011] Furthermore, an operating platform is fixed at the bottom of the housing, and the operating platform is connected through the auxiliary cover and the air outlet pipe. The top of the operating platform is connected to the bottom of the conveyor.

[0012] Furthermore, multiple support frames and support columns are fixedly installed below the operating table and the circulation box. The support columns and support frames are threadedly connected to the lower part of the support frame and the support rod is fixed to a support base at one end.

[0013] Furthermore, an inner liner is installed on the inner wall of the box, and one side of the inner liner is fixedly connected to the side of the mounting base.

[0014] The beneficial effects of this utility model are as follows:

[0015] (1) The processing components installed in the chamber can not only effectively reduce the humidity in the oven and reduce the risk of copper surface oxidation, but also continuously remove pollutants in the air and realize the recycling of gas in the oven, thus improving energy efficiency. At the same time, the cleaning components installed in the processing components can not only reduce air humidity and adsorb dust, impurity particles and organic gases, keep the environment inside the oven clean and reduce the risk of copper surface oxidation, but also wipe and clean the filter element plate regularly to prevent the filter screen from reducing the filtration efficiency due to pollutants clogging it, thus reducing the workload and frequency of manual cleaning, and reducing maintenance costs and failure rate.

[0016] (2) By using the placement components in the chamber, the electroplated parts can be transported smoothly and accurately to the designated position inside the oven, which improves the efficiency of the electroplated parts entering and leaving the oven and reduces the tediousness and error rate of manual operation. At the same time, the temperature control components in the chamber can accurately heat the air inside the oven, providing a suitable temperature environment for the electroplated parts and preventing copper surface oxidation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0018] Figure 1 This is a schematic diagram of the main structure of an electroplating oven according to an embodiment of the present invention, which prevents contamination and oxidation of the copper surface area during tin electroplating.

[0019] Figure 2 This is a side view of an electroplating oven according to an embodiment of the present invention, which prevents contamination and oxidation of the copper surface area during tin electroplating.

[0020] Figure 3 This is a schematic diagram of the placement and temperature control components of an electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating, according to an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the processing component structure of an electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating, according to an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the cleaning component structure of an electroplating oven according to an embodiment of the present invention, which prevents contamination and oxidation of the copper surface area during tin electroplating.

[0023] In the picture:

[0024] 1. Cabinet; 2. Placement Components; 201. Conveyor; 202. Sealing Frame; 203. Electric Telescopic Rod I; 204. Sealing Plate; 3. Temperature Control Components; 301. Mounting Base; 302. Electric Heating Element; 303. Temperature and Humidity Sensor; 304. Thermostat; 4. Processing Components; 401. Auxiliary Cover; 402. Air Inlet Pipe; 403. Air Outlet Pipe; 404. Control Valve I; 405. Circulating Filter Cartridge; 406. Conveying Pipe; 407. Control Valve II; 408. Circulation Box; 409. Circulation Pump; 5. Cleaning Components; 501. Filter Frame; 502. Filter Cartridge Plate; 503. Activated Carbon Filter Plate; 504. Dehumidifier; 505. Electric Telescopic Rod II; 506. Cleaning Brush; 6. Operating Table; 7. Support Column; 8. Adjusting Rod; 9. Support Base; 10. Inner Liner; 11. Support Frame. Detailed Implementation

[0025] 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.

[0026] Example 1:

[0027] like Figures 1-5 As shown, an electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating, according to an embodiment of the present invention, includes a box body 1, and placement components 2 arranged on both sides of the inner wall of the box body 1. The placement components 2 include placement openings on both sides of the box body 1. A conveyor 201 is installed on the inner wall of the placement opening. The conveyor 201 is prior art and therefore not described in detail. Sealing frames 202 are fixedly arranged on both sides of the box body 1. An electric telescopic rod 203 is arranged above the inner wall of the sealing frame 202. A sealing plate 204 is fixed to one end of the electric telescopic rod 203. The two sides of the sealing plate 204 are connected to the inner wall of the sealing frame 202, and one side of the sealing plate 204 is in contact with one side of the box body 1.

[0028] A temperature control component 3 is installed on the inner wall of the chamber 1. The temperature control component 3 includes multiple mounting bases 301 located at the bottom of the inner wall of the chamber 1. There are four mounting bases 301, with two in each group, for installing electric heating tubes 302. Electric heating tubes 302 are located on opposite sides of the multiple mounting bases 301. Multiple temperature and humidity sensors 303 are installed on the inner wall of the chamber 1. There are four temperature and humidity sensors 303, with two in each group located on one side of the inner wall of the chamber 1, for real-time monitoring of the temperature and humidity inside the oven and feeding the data back to the control system. A temperature controller 304 is installed on the top of the chamber 1. An inner liner 10 is installed on the inner wall of the chamber 1. The inner liner 10 is made of corrosion-resistant and easy-to-clean materials, such as stainless steel and Teflon coating, to reduce contaminant adhesion and facilitate cleaning and maintenance. One side of the inner liner 10 is fixedly connected to the side of the mounting base 301.

[0029] Example 2:

[0030] like Figures 1-5 As shown, according to an embodiment of the present invention, an electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating has a processing component 4 connected to the bottom of the oven body 1. The processing component 4 includes an auxiliary cover 401 that extends through the bottom of the oven body 1. The auxiliary cover 401 is positioned opposite to the electric heating tube 302. An air inlet pipe 402 and an air outlet pipe 403 extend through the bottom of the auxiliary cover 401 and the oven body 1, respectively. The air outlet pipe 403 is equipped with a heat insulation sleeve (not shown in the figure) during actual use. A control valve 404 is installed at one end of the air inlet pipe 402 and the air outlet pipe 403. A circulating filter cylinder 405 is connected to one end of the control valve 404.

[0031] One end of one of the circulating filter cartridges 405 is connected to a conveying pipe 406, and a control valve 407 is installed at one end of the conveying pipe 406. One end of the circulating filter cartridge 405 is connected to a circulating box 408, and a circulating pump 409 is installed on the inner wall of the circulating box 408. The two ends of the circulating pump 409 are connected to one end of the circulating filter cartridge 405 through connecting pipes.

[0032] An operating platform 6 is fixed at the bottom of the housing 1. The operating platform 6 is connected through the auxiliary cover 401 and the air outlet pipe 403. The top of the operating platform 6 is connected to the bottom of the conveyor 201. Multiple support frames 11 and support columns 7 are fixedly installed below the operating platform 6 and the circulation box 408. The number of support columns 7 and support frames 11 are four and two respectively. The bottom of the support columns 7 and support frames 11 are threaded with adjusting rods 8. One end of the adjusting rod 8 is fixed with a support seat 9.

[0033] A cleaning component 5 is provided on one side of the processing component 4. The cleaning component 5 includes multiple filter slots opened on one side of the processing component 4. There are two filter slots. The filter slots are opened on one side of the circulating filter cylinder 405. A filter frame 501 is installed on the inner wall of the filter slot. One end of the filter frame 501 is snapped into the inner wall of the mounting slot (not shown in the figure). A filter element plate 502 and an activated carbon filter plate 503 are respectively installed on the inner wall of the filter frame 501. The filter element plate 502 is made of HEPA filter material and is used to adsorb dust and impurity particles in the air. The activated carbon filter plate 503 is used to adsorb organic gases in the oven.

[0034] A dehumidifier 504 is installed on the inner wall of the processing component 4. The inner wall of the circulating filter cylinder 405 is connected to the dehumidifier 504 to reduce the humidity in the oven, thereby reducing the risk of contamination and oxidation of the copper surface area. An electric telescopic rod 505 is installed on the inner wall of the processing component 4. The inner wall of the circulating filter cylinder 405 is connected to the electric telescopic rod 505. A cleaning brush 506 is installed at one end of the electric telescopic rod 505. A chip discharge port (not shown in the figure) is opened at the bottom of the circulating filter cylinder 405 during actual use. A sealing cover (not shown in the figure) is installed on the inner wall of the chip discharge port. The sealing cover is opposite to the cleaning brush 506. One side of the cleaning brush 506 is in contact with one side of the filter element plate 502.

[0035] The electric telescopic pole 2 (505), circulating pump 409, control valve 2 (407), control valve 1 (404), thermostat 304, temperature and humidity sensor 303, electric heating element 302, electric telescopic pole 1 (203), and conveyor 201 are electrically connected to a PLC controller during actual use. These components are also electrically connected to an external power supply.

[0036] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0037] In summary, with the help of the above-mentioned technical solution of this utility model, during the processing, the workers place the IGBT module products after electroplating tin onto the conveyor 201, and then drive the sealing plate 204 to move inside the sealing frame 202 through one of the electric telescopic rods 203, so that the sealing plate 204 is in close contact with the side wall of the box 1, ensuring that the inside of the box 1 is isolated from the outside world and preventing contaminants from entering. After opening, it is sent into the inside of the box 1 through the conveyor 201 for drying treatment.

[0038] Then, the inner liner 10 of the chamber 1 is heated by the electric heating tube 302. The temperature is automatically adjusted by the temperature controller 304 according to the real-time data of the temperature and humidity sensor 303. The temperature and humidity sensor 303 is distributed on the inner wall of the chamber 1 to monitor the temperature and humidity and feed it back to the control system. At the same time, the circulation pump 409, control valve one 404 and control valve two 407 are started to draw the air inside the chamber 1 and the outside air into the circulation filter cartridge 405 through the air outlet pipe 403 and the delivery pipe 406.

[0039] The incoming air then passes through filter element plate 502 to adsorb dust and particulate matter in the air, activated carbon filter plate 503 to remove organic gases and volatile pollutants, and dehumidifier 504 to reduce air humidity and reduce the risk of copper surface oxidation. After one treatment, it is transported by circulation pump 409 to another circulation filter cartridge 405 and then further processed by filter element plate 502, activated carbon filter plate 503, and dehumidifier 504. The purified dry air returns to the housing 1 through air inlet pipe 402, forming a closed loop to maintain a clean environment.

[0040] The electric telescopic rod 505 installed inside the circulating filter cartridge 405 periodically drives the cleaning brush 506 to scrape the surface of the filter element plate 502 to remove attached impurities. The debris generated during cleaning is discharged through the debris discharge port at the bottom of the circulating filter cartridge 405 (the sealing cover needs to be opened manually for cleaning).

[0041] The height of the control panel 6, support frame 11, and support column 7 can be adjusted by adjusting rod 8 to ensure stable operation of the equipment and adapt to different production environment requirements.

[0042] 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. An electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating, characterized in that, The assembly includes a housing (1), placement components (2) on both sides of the inner wall of the housing (1), a temperature control component (3) on the inner wall of the housing (1), a processing component (4) connected to the bottom of the housing (1), a cleaning component (5) on one side of the processing component (4), the cleaning component (5) including multiple filter slots opened on one side of the processing component (4), a filter frame (501) installed on the inner wall of the filter slot, a filter element plate (502) and an activated carbon filter plate (503) respectively installed on the inner wall of the filter frame (501), a dehumidifier (504) installed on the inner wall of the processing component (4), an electric telescopic rod (505) on the inner wall of the processing component (4), a cleaning brush (506) on one end of the electric telescopic rod (505), and one side of the cleaning brush (506) in contact with one side of the filter element plate (502).

2. The electroplating oven according to claim 1 for preventing contamination and oxidation of the copper surface area during tin electroplating, characterized in that, The placement component (2) includes placement openings on both sides of the box (1). A conveyor (201) is installed on the inner wall of the placement opening. A sealing frame (202) is fixedly installed on both sides of the box (1). An electric telescopic rod (203) is installed on the upper part of the inner wall of the sealing frame (202). A sealing plate (204) is fixed at one end of the electric telescopic rod (203). Both sides of the sealing plate (204) are connected to the inner wall of the sealing frame (202). One side of the sealing plate (204) is in contact with one side of the box (1).

3. The electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating according to claim 2, characterized in that, The temperature control component (3) includes multiple mounting bases (301) provided on the lower part of the inner wall of the box (1), electric heating tubes (302) provided on the opposite side of the multiple mounting bases (301), multiple temperature and humidity sensors (303) installed on the inner wall of the box (1), and a temperature controller (304) installed on the top of the box (1).

4. The electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating according to claim 3, characterized in that, The processing component (4) includes an auxiliary cover (401) extending through the bottom of the housing (1). The auxiliary cover (401) is positioned opposite the electric heating tube (302). An air inlet pipe (402) and an air outlet pipe (403) extend through the bottom of the auxiliary cover (401) and the housing (1), respectively. A control valve (404) is installed at one end of the air inlet pipe (402) and the air outlet pipe (403). One end of the control valve (404) is connected to a circulating filter cartridge (405). One end of one of the circulating filter cartridges (405) extends through... A conveying pipe (406) is provided, with a control valve (407) installed at one end. A circulation box (408) is passed through one end of the circulating filter cylinder (405). A circulation pump (409) is installed on the inner wall of the circulation box (408). The two ends of the circulation pump (409) are connected to one end of the circulating filter cylinder (405) through connecting pipes. The filter tank is opened on one side of the circulating filter cylinder (405). The inner wall of the circulating filter cylinder (405) is connected to the dehumidifier (504) and the electric telescopic rod (505).

5. An electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating according to claim 4, characterized in that, An operating table (6) is fixed below the box (1). The operating table (6) is connected through the auxiliary cover (401) and the air outlet pipe (403). The upper part of the operating table (6) is connected to the lower part of the conveyor (201).

6. An electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating, as described in claim 5, is characterized in that... Multiple support frames (11) and support columns (7) are fixedly installed below the operating table (6) and the circulation box (408). The support columns (7) and the support frames (11) are threadedly connected to the lower part of the support frame (11) with an adjusting rod (8). One end of the adjusting rod (8) is fixed with a support seat (9).

7. An electroplating oven for preventing contamination and oxidation of the copper surface area during tin electroplating according to claim 6, characterized in that, The inner wall of the box (1) is fitted with an inner liner (10), and one side of the inner liner (10) is fixedly connected to the side of the mounting base (301).