Automatic PCB board corrosion chamber

A technology of PCB board and corrosion box, which is applied in the field of PCB circuit board corrosion equipment, can solve the problems of hindering water flow, low corrosion efficiency, long corrosion time, etc., and achieve the effect of reducing resource waste and improving corrosion efficiency

Inactive Publication Date: 2015-05-20
博罗县亿阳电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the shaking process, the inertia of the water will maintain the original state, hindering the flow of water, the efficiency is relatively low and a lot of power resources are wasted
[0004] Some corrosion tanks on the market use water pumps to extract corrosive liquid to wash the PCB circuit board in the corrosion tank. Since the internal part of the water pump is in contact with the corrosion liquid for a long time, the water pump is easily damaged, and the PCB circuit board will be corroded

Method used

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  • Automatic PCB board corrosion chamber
  • Automatic PCB board corrosion chamber
  • Automatic PCB board corrosion chamber

Examples

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Example

[0038] First embodiment

[0039] This automatic PCB board corrosion box, its circuit features: include: central control module, frequency modulation vibration module, mechanical transmission module, temperature detection and feedback module, heating module, liquid level sensor module, stroke control module, alarm prompt module, OLED LCD Display module, key module, drive module, power module.

[0040] See figure 1 — Figure 4 : Its structural characteristics:

[0041] Including a rectangular corrosion box 1.1 made of transparent corrosion-resistant materials. There are three water level marks 1.7 on the front side of the box, corresponding to PCB circuit boards of different sizes; there are three sensors and an infrared pair switch on the front side of the box. 2.2. From top to bottom, the three sensors are the upper liquid level sensor 2.1, the temperature sensor 2.3, and the lower liquid level sensor 2.4. The sensing parts of the three sensors are located inside the box and are w...

Example

[0043] Second embodiment

[0044] See image 3 : FM vibration module:

[0045] The solubility of gas is related to the temperature. When the temperature rises, the solubility of the gas in the corrosive liquid decreases. Some of the gas will be heated and escape on the PCB to form gas bubbles attached to the PCB, thereby preventing the PCB from contacting the corrosive liquid. , Thereby greatly reducing the corrosion efficiency, so the gas bubbles on the PCB board must be removed every once in a while. The PWM input terminal of the vibration motor is controlled through the main control chip, and the PWM input value is changed at regular intervals, thereby changing the vibration frequency and vibration amplitude of the vibration motor 3.2, clearing the gas bubbles on the PCB board, and then making The corrosive liquid is in full contact with the PCB board, thereby accelerating the corrosion rate. The vibration of the vibration motor 3.2 drives the PCB board to vibrate, which can g...

Example Embodiment

Specific embodiment three

[0072] See figure 1 — Figure 4 : Specific steps:

[0073] Corrosion personnel judged which size of circuit board their PCB board belongs to according to the three water level markings 1.7 on the corrosion box. After selecting the water level marking 1.7, the corrosion personnel fix the PCB circuit board on the strip clip 3.3, and then Pour the appropriate amount of corrosive agent into the transmission frame 3.7 for the area to be corroded by your own board, and click the confirm corrosion button. At this time, the water inlet pump will pump the clean water from the clean water tank B to the corrosion tank A. At this time, the 220V heating rod 1.8 starts Work; when the water level in the corrosion tank A reaches the selected water level mark 1.7 line, the water inlet pump stops working. At this time, the transmission frame 3.7 begins to descend. When the transmission frame 3.7 descends into the tank, the vibration motor 3.2 starts to work. , The air ...

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PUM

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Abstract

The invention discloses an automatic PCB board corrosion chamber. The automatic PCB board corrosion chamber comprises a central control module, a frequency modulation vibration module, a mechanical transmission module, a temperature detection and feedback module, a heating module, a liquid-level sensor module, a stroke control module, an alarm reminding module, an OLED liquid crystal display module, a button module, a drive module and a power supply module. According to the working mode of the automatic PCB board corrosion chamber, the temperature detection and feedback module and the heating module form a closed loop so that the temperature of a corrosion solution is maintained at optimum corrosion temperature range; the PCB board is driven to be vibrated by the vibration of a vibration motor so as to greatly speed up the contact rate of PCB board and effective ions in the corrosion solution; the corrosion solution inside the corrosion chamber is stirred through the gas generated from a gas pump so that the effective ions inside the corrosion chamber are uniformly distributed in the corrosion solution, the corrosion rate is accelerated, the corrosion quality is improved, the erosion waiting time is reduced, the manpower is released through automatic control and the corrosion quality is improved by setting and establishing a delay control mechanism. The automatic PCB board corrosion chamber is simple in operation and is convenient to popularize.

Description

technical field [0001] The invention relates to a PCB circuit board corrosion device, in particular to a fully automatic PCB board corrosion box. Background technique [0002] For companies, enterprise laboratory developers and electronic innovation laboratories of major universities, in the production of circuit boards, mainly through the thermal transfer method, the corrosion of circuit boards is one of the very important procedures. At present, the corrosion of circuit boards in most electronic innovation laboratories in China is still at the stage of manual corrosion. By shaking the corrosion box, the corrosion liquid washes the PCB circuit boards regularly, and then corrodes the PCB circuit boards. A lot of lab developers' time was wasted by manual etching. [0003] Some corrosion devices on the market improve the mechanical structure and shake the corrosion box regularly, so that the corrosion liquid can wash the PCB board regularly. During the shaking process, due ...

Claims

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Application Information

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IPC IPC(8): C23F1/08
CPCH05K3/068H05K2203/0292H05K2203/0766
Inventor 宋彦震
Owner 博罗县亿阳电子有限公司
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