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CN-121972752-A - Reflow oven assembly

CN121972752ACN 121972752 ACN121972752 ACN 121972752ACN-121972752-A

Abstract

A reflow oven assembly includes a reflow oven and a purge assembly. The reflow oven is configured to generate a gas including an atmosphere gas. The purification component comprises a liquid storage device, a mixed flow device, a reaction container and a waste liquid collecting device. The liquid storage device is configured to store a liquid. The flow mixing device is in communication with the reflow oven and the liquid storage device and is configured to mix a gas of the reflow oven with a liquid of the liquid storage device. The reaction vessel communicates with the mixed flow device so as to receive the gas and the liquid flowing out of the mixed flow device, and the gas generates bubbles in the reaction vessel. The waste collection device is configured to receive the bubbles and communicate with the reflow oven, the bubbles forming a purified atmosphere gas upon collapse in the waste collection device and entering the reflow oven. The reflow oven assembly can purify the atmosphere gas, thereby ensuring the cleanliness of the product produced by the reflow oven.

Inventors

  • CHEN YUEXIN

Assignees

  • 伊利诺斯工具制品有限公司

Dates

Publication Date
20260505
Application Date
20241025

Claims (11)

  1. 1. A reflow oven assembly, comprising: A reflow oven (102), the reflow oven (102) configured to generate a gas including an atmospheric gas, and A decontamination assembly (104), the decontamination assembly (104) comprising: a reservoir (108), the reservoir (108) configured to store a liquid; -a flow mixing device (110), the flow mixing device (110) being in communication with the reflow oven (102) and the liquid storage device (108) and being configured to mix a gas of the reflow oven (102) with a liquid of the liquid storage device (108); A reaction vessel (112), the reaction vessel (112) being in communication with the flow mixing device (110) so as to receive the gas and the liquid flowing out of the flow mixing device (110), the gas generating bubbles in the reaction vessel (112), and A waste collection device (114), the waste collection device (114) being configured to receive the bubbles and communicate with the reflow oven (102), the bubbles forming a purified atmosphere gas upon rupture in the waste collection device (114) and entering the reflow oven (102).
  2. 2. The reflow oven assembly of claim 1, wherein: the gas includes the atmosphere gas and a flux gas, and the liquid is configured to be capable of dissolving the flux gas.
  3. 3. The reflow oven assembly of claim 1, wherein: the reaction vessel (112) comprises a reaction inner cavity (161) and a reaction outer cavity (162); wherein the reaction content chamber (161) is communicated with the mixed flow device (110), and the gas from the mixed flow device (110) forms bubbles in the reaction content chamber (161); wherein the reaction outer volume (162) is disposed around the reaction inner volume (161) and is in fluid communication with the reaction inner volume (161), the reaction outer volume (162) being configured to receive at least a portion of the liquid.
  4. 4. A reflow oven assembly as in claim 3, wherein: the reaction vessel (112) is arranged above the mixed flow device (110), and an outlet of the mixed flow device (110) is in fluid communication with the reaction content cavity (161); the reaction content chamber (161) and the reaction outer chamber (162) are in fluid communication at an upper portion of the reaction vessel (112) such that at least a portion of the liquid in the reaction content chamber (161) is able to flow into the reaction outer chamber (162).
  5. 5. The reflow oven assembly of claim 4, wherein: The outlet of the mixing device (110) is arranged towards the upper side, so that the mixed liquid flowing out of the mixing device (110) can enter the reaction content cavity (161) from the lower side of the reaction content cavity (161).
  6. 6. The reflow oven assembly of claim 1, wherein: the flow mixing device (110) is a needle brush pump.
  7. 7. A reflow oven assembly as in claim 3, wherein: The reaction outer volume (162) communicates with the reservoir (108) such that the liquid in the reaction outer volume (162) flows into the reservoir (108).
  8. 8. A reflow oven assembly as in claim 3, wherein: The waste collection device (114) includes a waste collection device inlet (181), a first outlet (182), and a second outlet (183); The waste liquid collecting device inlet (181) is arranged at the bottom of the waste liquid collecting device (114) and is communicated with the reaction content cavity (161), the first outlet (182) is arranged at the top of the waste liquid collecting device (114) and is communicated with the reflow soldering furnace (102), and the second outlet (183) is arranged at the lower part of the waste liquid collecting device (114).
  9. 9. The reflow oven assembly of claim 1, further comprising: A liquid level detection device (192), the liquid level detection device (192) configured to detect a liquid level of the liquid storage device (108); -a return channel (171), said reaction vessel (112) being in communication with said reservoir means (108) through said return channel (171); A return valve (191), the return valve (191) being disposed on the return passage (171) and configured to control the flow of fluid in the return passage (171), and -A control device (210), the control device (210) being in communication with the liquid level detection device (192) and the return valve (191), the control device (210) being configured to control the return valve (191) in dependence of the liquid level detected by the liquid level detection device (192).
  10. 10. The reflow oven assembly of claim 1, further comprising: -a drying device (116), the drying device (116) being configured to dry the purified atmosphere gas discharged from the waste liquid collection device (114).
  11. 11. The reflow oven assembly of claim 1, wherein: The liquid storage device (108) is provided with a liquid level observation window (121), so that the liquid level of the liquid in the liquid storage device (108) can be seen through the liquid level observation window (121).

Description

Reflow oven assembly Technical Field The present application relates to the field of reflow ovens. Background In the prior art, there is an atmosphere in the reflow oven. The flux (e.g., solder paste) becomes flux gas at high temperature in the reflow oven and generates organics, resulting in contamination of the atmosphere gas. The organic matter cannot exit the reflow oven and contaminate the furnace cavity in the reflow oven and may even contaminate the product. Disclosure of Invention Exemplary embodiments of the present application may solve at least some of the above problems. The application provides a reflow oven assembly comprising a reflow oven and a purge assembly. The reflow oven is configured to generate a gas including an atmosphere gas. The purification component comprises a liquid storage device, a mixed flow device, a reaction container and a waste liquid collecting device. The reservoir is configured to store a liquid. The flow mixing device is in communication with the reflow oven and the liquid storage device and is configured to mix a gas of the reflow oven with a liquid of the liquid storage device. The reaction vessel communicates with the mixed flow device so as to receive the gas and the liquid flowing out from the mixed flow device, the gas generating bubbles in the reaction vessel. The waste collection device is configured to receive the bubbles and communicate with the reflow oven, the bubbles forming a purified atmosphere gas upon collapse in the waste collection device and entering the reflow oven. According to the above reflow oven assembly, the gas includes the atmosphere gas and a flux gas, and the liquid is configured to be capable of dissolving the flux gas. According to the reflow oven assembly, the reaction vessel comprises a reaction inner cavity and a reaction outer cavity. Wherein the reaction content cavity is communicated with the mixed flow device, and the gas from the mixed flow device forms bubbles in the reaction content cavity. Wherein the reaction outer volume is disposed around and in fluid communication with the reaction inner volume, the reaction outer volume being configured to receive at least a portion of the liquid. According to the reflow oven assembly, the reaction vessel is arranged above the mixed flow device, and the outlet of the mixed flow device is in fluid communication with the reaction content cavity. The reaction content chamber and the reaction outer chamber are in fluid communication at an upper portion of the reaction vessel such that at least a portion of the liquid in the reaction content chamber is able to flow into the reaction outer chamber. According to the reflow oven assembly, the outlet of the mixed flow device is arranged upward, so that the mixed liquid flowing out of the mixed flow device can enter the reaction content cavity from below the reaction content cavity. According to the reflow oven assembly, the mixed flow device is a needle brush pump. According to the reflow oven assembly described above, the reaction external cavity communicates with the liquid storage device, so that the liquid in the reaction external cavity flows into the liquid storage device. According to the reflow oven assembly described above, the waste liquid collection device includes a waste liquid collection device inlet, a first outlet, and a second outlet. The waste liquid collecting device inlet is arranged at the bottom of the waste liquid collecting device and is communicated with the reaction content cavity, the first outlet is arranged at the top of the waste liquid collecting device and is communicated with the reflow oven, and the second outlet is arranged at the lower part of the waste liquid collecting device. The reflow oven assembly according to the above further comprises a liquid level detection device, a reflow channel, a reflow valve, and a control device. The liquid level detection device is configured to detect a liquid level of the liquid storage device. The reaction vessel is communicated with the liquid storage device through the backflow channel. The return valve is disposed on the return passage and is configured to control a flow rate of the fluid in the return passage. The control device is in communication with the liquid level detection device and the return valve, and the control device is configured to control the return valve according to the liquid level detected by the liquid level detection device. The reflow oven assembly as recited in the above, further comprising a drying device configured to dry the purified atmosphere gas exhausted from the waste liquid collection device. According to the reflow soldering furnace assembly, the liquid level observation window is arranged on the liquid storage device, so that the liquid level of the liquid in the liquid storage device can be seen through the liquid level observation window. The reflow oven assembly can purify the atmosphere gas, thereby ensuring the cleanliness of