Power supply system for reflow soldering workshop

Abstract

The utility model provides a reflow soldering workshop power supply system, and belongs to the technical field of power supply. The reflow soldering workshop power supply system comprises a power supply VCC, an air switch, a standby power supply, a first relay, a second relay and a vacuum pump which are arranged in a reflow soldering workshop, the first end of the air switch and the first end of the vacuum pump are both connected with a power supply VCC, the second end of the air switch is connected with the first end and the second end of the first relay, the third end of the first relay is connected with a standby power supply, the fourth end of the first relay is grounded, and the fifth end of the first relay is connected with the first end of the second relay; the second end of the second relay is connected with the second end of the vacuum pump, and the third end and the fourth end of the second relay are both grounded; the first relay is configured to switch on the standby power supply when the air switch is switched off, and the second relay is configured to control the power supply VCC to supply power to the vacuum pump. According to the invention, the problem of crown block string drop caused by air switch tripping can be solved.

Description

Technical Field

[0001] The present disclosure relates to the field of power supply technology, and in particular to a power supply system for a reflow soldering workshop. Background Art

[0002] An air switch is a protective device in an electrical circuit. When an abnormality occurs in the circuit, such as excessive current or a short circuit, it can automatically trip to cut off the circuit, protecting the safety of the equipment and circuit. A reflow soldering air switch may trip, causing the overhead crane to disconnect. This is because the compressed air in the workshop has poor oil-water separation, which causes oil mist to appear on the circuit board of the reflow soldering air cooling torch. This oil mist will occasionally come into contact with the circuit part on the circuit board, causing the circuit on the circuit board to become abnormal, such as causing a short circuit or current overload, thereby triggering the air switch to automatically trip, interrupting the power supply to the circuit, and ultimately causing the overhead crane to disconnect. Utility Model Content

[0003] The embodiments of the present disclosure provide a power supply system for a reflow soldering workshop to solve the problem of overhead crane disconnection caused by power failure of an air switch.

[0004] An embodiment of the present disclosure provides a power supply system for a reflow soldering workshop, comprising: a power supply VCC, an air switch, a backup power supply, a first relay, a second relay, and a vacuum pump arranged in the reflow soldering workshop.

[0005] The first end of the air switch and the first end of the vacuum pump are both connected to the power supply VCC, the second end of the air switch is respectively connected to the first end of the first relay and the second end of the first relay, the third end of the first relay is connected to the backup power supply, the fourth end of the first relay is grounded, and the fifth end of the first relay is connected to the first end of the second relay.

[0006] A second end of the second relay is connected to the second end of the vacuum pump, and a third end of the second relay and a fourth end of the second relay are both grounded.

[0007] The first relay is configured to connect the backup power supply when the air switch is disconnected, and the second relay is configured to control the power supply VCC to power the vacuum pump.

[0008] In an exemplary embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0009] Voltage detection module and central control module. The voltage detection module is connected to the central control module.

[0010] The voltage detection module includes a resistor and a capacitor.

[0011] A first end of the resistor is connected to the first relay and the first end of the capacitor, a second end of the resistor is connected to the second end of the capacitor, and the second end of the resistor is grounded.

[0012] In an exemplary embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0013] Oil mist monitoring module.

[0014] The oil mist monitoring module is connected to the central control module, and the oil mist monitoring module is configured to detect the oil mist content information of the circuit boards in the reflow soldering workshop.

[0015] In an exemplary embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0016] Circuit board cleaning module.

[0017] The circuit board cleaning module is connected to the central control module.

[0018] In an exemplary embodiment of the present disclosure, a circuit board cleaning module includes:

[0019] Cleaning agent storage tank, oil sump, recovery pump, spray head and rotary wiper head.

[0020] The recovery pump is connected to the oil collecting tank and the central control module respectively, the spray head is connected to the cleaning agent storage tank and the central control module respectively, and the rotary wiping head is connected to the central control module.

[0021] In an exemplary embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0022] Oil-water separation device.

[0023] The oil-water separation device is connected to the central control module.

[0024] In an exemplary embodiment of the present disclosure, the oil mist monitoring module includes:

[0025] Circuit board detection sensor and oil-water separation detection sensor.

[0026] The circuit board detection sensor is arranged above the circuit board, and the circuit board detection sensor is connected to the central control module.

[0027] The oil-water separation detection sensor is arranged at the output end of the oil-water separation device, and the oil-water separation detection sensor is connected to the central control module.

[0028] In an exemplary embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0029] Communication module and early warning module.

[0030] The communication module and the early warning module are both connected to the central control module.

[0031] The reflow soldering workshop power supply system provided by the disclosed embodiments has the following beneficial effects: The disclosed embodiments significantly improve production continuity and stability. When the air switch is disconnected, the first relay can quickly connect to the backup power supply to power the second relay, allowing the second relay to continue controlling the power supply VCC to power the vacuum pump. This prevents the vacuum pump from suddenly shutting down and disrupting the production process, which could lead to the overhead crane disconnecting. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 This is a schematic structural diagram of a power supply system for a reflow soldering workshop provided by an embodiment of the present disclosure;

[0034] Figure 2 It is a structural schematic diagram of another reflow soldering workshop power supply system provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] To help those skilled in the art better understand this solution, the following will clearly describe the technical solutions in the embodiments of this solution in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of this solution, not all of it. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative work should fall within the scope of protection of this solution.

[0036] Throughout the specification, claims, and accompanying figures of this solution, the term "including" and any variations thereof mean "including, but not limited to," and are intended to cover non-exclusive inclusions and are not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish between different objects, not to describe a specific order.

[0037] The following describes the implementation of the present disclosure in detail with reference to the accompanying drawings:

[0038] Figure 1 This is a schematic diagram of a power supply system for a reflow soldering workshop provided by an embodiment of the present disclosure. Figure 1 The power supply system of the reflow soldering workshop includes: a power supply VCC set in the reflow soldering workshop, an air switch 101, a backup power supply 102, a first relay 103, a second relay 104 and a vacuum pump 105.

[0039] The first end of the air switch 101 and the first end of the vacuum pump 105 are both connected to the power supply VCC, the second end of the air switch 101 is respectively connected to the first end of the first relay 103 and the second end of the first relay 103, the third end of the first relay 103 is connected to the backup power supply 102, the fourth end of the first relay 103 is grounded, and the fifth end of the first relay 103 is connected to the first end of the second relay 104.

[0040] A second end of the second relay 104 is connected to a second end of the vacuum pump 105 , and a third end of the second relay 104 and a fourth end of the second relay 104 are both grounded.

[0041] The first relay 103 is configured to connect the backup power supply 102 when the air switch 101 is disconnected, and the second relay 104 is configured to control the power supply VCC to supply power to the vacuum pump 105 .

[0042] In this embodiment, power supply VCC is configured as the main power supply, powering vacuum pump 105. First relay 103 is a standard relay, while second relay 104 is a solid-state relay. In this embodiment, first relay 103 functions as a "single-pole, double-throw" switch, while second relay 104 functions as a "switch." A solid-state relay (SSR) is an electronic switching device without mechanical contacts. It consists of three parts: an input circuit, an isolation (coupling) circuit, and an output circuit. Its operating principle is to control the on / off state of a circuit by switching semiconductor devices, such as thyristors and transistors, on and off.

[0043] In this embodiment, the first end of the first relay 103 and the fourth end of the first relay 103 are the first end and the second end of the internal coil of the first relay 103, respectively. The second end, the third end, and the fifth end of the first relay 103 are the operating contacts of the first relay 103. The first end and the third end of the second relay 104 are the first end and the second end of the internal coil of the second relay 104, respectively. The second end and the fourth end of the second relay 104 are the operating contacts of the second relay 104.

[0044] In this embodiment, when the air switch 101 is closed, a circuit is formed between the power supply VCC, the first relay 103, the second relay 104, and the vacuum pump 105, allowing the vacuum pump 105 to operate. When the air switch 101 is opened, the current in the circuit disappears, the first relay 103 is disconnected from the air switch 101, the second relay 104 is disconnected, and the vacuum pump 105 stops operating. At this time, the first relay 103, after disconnecting from the air switch 101, connects to the backup power supply 102, forming a circuit between the backup power supply 102, the first relay 103, the second relay 104, the vacuum pump 105, and the power supply VCC. The backup power supply 102 supplies power to the second relay 104, allowing the second relay 104 to continue to activate the power supply VCC to power the vacuum pump 105.

[0045] For example, when the air switch 101 is closed, power supply VCC serves as the primary power source. Current flows sequentially through the air switch 101, the operating contacts of the first relay 103, and the operating contacts of the second relay 104, powering the vacuum pump 105. This forms a working circuit, allowing the vacuum pump 105 to operate normally. When the air switch 101 trips, the current in the circuit instantly disappears. The internal coil of the first relay 103 loses power, disconnecting its operating contacts from the air switch 101. Simultaneously, the internal coil of the second relay 104 also loses power, disconnecting its operating contacts, and the vacuum pump 105 stops operating. After disconnecting from the air switch 101, the first relay 103 quickly connects to the backup power supply 102. At this point, a new circuit is formed, consisting of the backup power supply 102, the first relay 103, the second relay 104, the vacuum pump 105, and power supply VCC. The backup power supply 102 powers the internal coil of the second relay 104, closing its operating contacts. This allows power supply VCC to continue powering the vacuum pump 105, ensuring that the vacuum pump 105 continues to operate.

[0046] In this embodiment, one reason for the air switch 101 tripping is the oil mist cooling caused by the unique workshop environment, which in turn affects the circuit boards. This is an unforeseen and difficult-to-avoid emergency. A reflow workshop power supply system equipped with a backup power supply 102 and dual relays can prevent this emergency from causing the vacuum pump 105 to shut down, potentially leading to serious consequences such as overhead crane disconnection.

[0047] For example, during the generation and transmission of compressed air, the oil and water should be separated by the oil-water separator 110. However, due to poor separation efficiency, the oil mist travels with the compressed air to the cooling torch of the convergent welding process and adheres to the circuit board. The electronic components and circuits on the circuit board have a certain current and voltage range during normal operation. When the oil mist accumulates to a certain level, it will change the electrical characteristics of the circuit board, causing local short circuits or leakage, resulting in a sudden increase in current. The air switch 101 contains an electromagnetic induction element and a tripping mechanism. When the current passing through exceeds the set value, the magnetic force generated by the electromagnetic induction triggers the tripping mechanism, causing the air switch 101 to quickly disconnect the circuit and achieve its protective function. The operation of the overhead crane is driven by electricity. When the related circuit loses power due to the air switch 101 tripping, the overhead crane loses power and cannot maintain the state of hoisting the object, causing the object to fall, i.e., the overhead crane loses its string.

[0048] For example, in a reflow soldering workshop, large-scale electronic product production is underway. An overhead crane continuously lifts circuit boards undergoing various processes between workstations. During the production process, due to the poor oil-water separation of compressed air, oil mist occasionally invades the circuit boards of the convergent soldering air cooling torch. At some point, the oil mist becomes so severe that it trips the 24V (3F10) air switch 101, immediately shutting down the vacuum pump 105. This results in uneven cooling of the circuit boards being soldered, affecting soldering quality and potentially causing the crane to lose balance and cause the crane to lose control. By applying the solution provided in this embodiment, when the air switch 101 trips, the first relay 103 quickly switches to the backup power supply 102. The backup power supply 102 then powers the second relay 104, closing it and reconnecting the power supply VCC to power the vacuum pump 105.

[0049] This embodiment can improve the continuity and stability of production in the reflow soldering workshop. When the air switch 101 is disconnected, the first relay 103 can quickly connect to the backup power supply 102 to power the second relay 104, allowing the second relay 104 to continue controlling the power supply VCC to power the vacuum pump 105. This prevents the sudden shutdown of the vacuum pump 105 from interrupting the production process and causing the overhead crane to disconnect.

[0050] like Figure 2 As shown, in one embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0051] Voltage detection module 106 and central control module 107 : The voltage detection module 106 is connected to the central control module 107 .

[0052] The voltage detection module includes a resistor and a capacitor.

[0053] A first end of the resistor is connected to the first relay 103 and a first end of the capacitor, a second end of the resistor is connected to a second end of the capacitor, and the second end of the resistor is grounded.

[0054] In this embodiment, the voltage detection module 106 detects the voltage in the circuit through a combination of resistors and capacitors. The resistors and capacitors form a simple voltage divider circuit. When the voltage in the circuit changes, the voltage across the resistor will also change accordingly. The capacitor plays a role in filtering and stabilizing the voltage, making the detected voltage more stable and accurate. The detected voltage signal is transmitted to the central control module 107. The purpose of adding the voltage detection module 106 and the central control module 107 is to monitor the voltage status of the power supply system of the reflow soldering workshop in real time. By timely understanding the voltage situation, it can be determined whether the air switch 101 is disconnected.

[0055] For example, during the production process of a reflow soldering workshop, the voltage detection module 106 and the central control module 107 are in continuous operation. When multiple devices in the workshop are started at the same time, the load increases instantaneously, and the circuit voltage changes. At this time, the voltage divider circuit composed of resistors and capacitors comes into play and detects voltage fluctuations. A stable and accurate voltage signal is transmitted to the central control module 107, which quickly analyzes and judges. If the voltage change is too large, it indicates that the air switch 101 may be disconnected. The central control module 107 immediately issues an alarm and notifies maintenance personnel to check. This ensures smooth production and avoids production interruptions and equipment damage caused by voltage abnormalities and failures of the air switch 101.

[0056] This embodiment implements real-time monitoring of the power supply system voltage by adding a voltage detection module 106 and a central control module 107. This not only improves system stability and safety, allowing for timely notification of tripping of the air switch 101, but also enables timely detection and handling of voltage anomalies, effectively preventing equipment damage and production interruptions, and ensuring smooth production.

[0057] like Figure 2 As shown, in one embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0058] Oil mist monitoring module 108 .

[0059] The oil mist monitoring module 108 is connected to the central control module 107 , and is configured to detect oil mist content information of circuit boards in the reflow soldering workshop.

[0060] In this embodiment, the oil mist monitoring module 108 includes a circuit board detection sensor 111 and an oil-water separation detection sensor 112. Circuit board detection sensor 111 is located above the circuit board and is connected to the central control module 107. Oil-water separation detection sensor 112 is located at the output of the oil-water separation device 110 and is connected to the central control module 107.

[0061] In this embodiment, the circuit board detection sensor 111 is configured to detect the cooling oil mist content of the circuit board. The oil-water separation detection sensor 112 is configured to detect the oil mist content of the oil-water separation module. The circuit board detection sensor 111 may include a photoelectric sensor or a capacitive sensor. Photoelectric sensors utilize the photoelectric effect to determine the oil mist content by emitting light and detecting changes in the intensity of reflected or scattered light. Oil mist alters the propagation and reflection of light, thereby affecting the detected light intensity. Capacitive sensors operate based on the principle of capacitance. When the medium surrounding the circuit board (including oil mist) changes, the capacitance value changes accordingly, thereby detecting the oil mist content. The oil-water separation detection sensor 112 may include an ultrasonic sensor, which utilizes the differences in the propagation speed and attenuation of ultrasonic waves in different media. When the oil mist content changes, the propagation characteristics of ultrasonic waves change, thereby detecting the oil mist content.

[0062] In this embodiment, circuit board detection sensor 111 is located above the circuit board and can directly detect the oil mist content around the circuit board during cooling and transmit relevant information to central control module 107. Oil-water separation detection sensor 112 is located at the output end of oil-water separation device 110 and is responsible for monitoring the oil mist content after oil-water separation and transmitting the data to central control module 107.

[0063] For example, the purpose of the oil mist monitoring module 108 is to accurately monitor the distribution and changes of oil mist within the reflow soldering workshop in real time. By monitoring the oil mist content on the circuit boards, it is possible to promptly identify the risk of excessive oil mist affecting the normal operation of the circuit boards. Furthermore, monitoring the oil mist content at the output of the oil-water separator 110 allows for assessment of its performance, enabling timely adjustments or maintenance. This effectively controls the generation and spread of oil mist at the source, ensuring normal production in the workshop and stable operation of the equipment.

[0064] For example, in the daily production of the reflow soldering workshop, when the reflow soldering air cooling gun is working, the oil mist monitoring module 108 starts to run. The circuit board detection sensor 111 monitors in real time that the oil mist content above a certain circuit board exceeds the normal range, and immediately transmits this information to the central control module 107. The central control module 107 then issues an alarm and instructs relevant personnel to check whether there is a fault in the cooling system. At the same time, the oil-water separation detection sensor 112 finds that the oil mist content at the output end of the oil-water separation device 110 is too high, indicating that the oil-water separation device 110 may be working abnormally. After receiving this information, the central control module 107 arranges maintenance personnel to promptly inspect and maintain the oil-water separation device 110, adjust the working parameters, so as to improve the oil-water separation effect, reduce the impact of oil mist on production, and ensure that the production of the reflow soldering workshop can be carried out continuously, stably and efficiently.

[0065] like Figure 2 As shown, in one embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0066] Circuit board cleaning module 109.

[0067] The circuit board cleaning module 109 is connected to the central control module 107 .

[0068] In this embodiment, the circuit board cleaning module 109 includes:

[0069] Cleaning agent storage tank, oil sump, recovery pump, spray head and rotary wiper head.

[0070] The recovery pump is connected to the oil collecting tank and the central control module 107 respectively, the spray head is connected to the cleaning agent storage tank and the central control module 107 respectively, and the rotary wiping head is connected to the central control module 107.

[0071] In this embodiment, the circuit board cleaning module 109 is connected to the central control module 107 to achieve intelligent control. The central control module 107 can generate control instructions and send them to the circuit board cleaning module 109 to control the circuit board cleaning module 109 to start the corresponding cleaning operation (cleaning the circuit board).

[0072] For example, under the control of central control module 107, the spray head draws cleaning agent from the cleaning agent storage tank and precisely sprays it onto the circuit board to be cleaned. Driven by central control module 107, the rotating wiping head wipes the circuit board to remove oil stains. The oil sump collects the mixture of oil stains and cleaning agent generated during the cleaning process. Under the control of central control module 107, the recovery pump pumps the mixture out of the sump for subsequent processing or recycling.

[0073] For example, during the production process in the reflow soldering workshop, the oil mist monitoring module 108 detects that the oil mist content on a batch of circuit boards has reached a preset cleaning threshold and transmits this information to the central control module 107. The central control module 107 then activates the circuit board cleaning module 109. The nozzle accurately sprays the cleaning agent onto these circuit boards, and the rotating wiping head starts to rotate at high speed, carefully wiping the circuit boards. The oil collection tank quickly collects the flowing oil and cleaning agent mixture, and the recovery pump starts in time according to the instructions of the central control module 107 to pump the mixture out of the oil collection tank. After cleaning, the oil on this batch of circuit boards was effectively removed, and they were restored to a good working condition and continued to be put into production, avoiding circuit board failures and production quality problems caused by the accumulation of oil.

[0074] This embodiment can promptly and effectively clean oil stains from circuit boards, preventing oil accumulation from affecting the performance and service life of the circuit boards and reducing the frequency of disconnection of the air switch 101. By connecting to the central control module 107, automated and precise control can be achieved, adjusting the cleaning strategy based on the actual oil stain situation, improving cleaning efficiency and quality, while reducing manual intervention and the risk of operational errors, thereby ensuring the stability and reliability of production in the reflow soldering workshop.

[0075] like Figure 2 As shown, in one embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0076] Oil-water separation device 110.

[0077] The oil-water separator 110 is connected to the central control module 107 .

[0078] In this embodiment, the oil-water separation module is configured to separate oil and water from the compressed air in the reflow soldering workshop. The oil-water separation device 110 separates the oil and water contained in the compressed air in the reflow soldering workshop through physical or chemical methods. This separation can be achieved by utilizing differences in density, hydrophilicity, or hydrophobicity between oil and water, directing the oil and water to separate areas within a specific device.

[0079] For example, during normal production in the reflow soldering workshop, compressed air is continuously supplied to each process link. The oil-water separation device 110 continues to work in coordination with the central control module 107. When the compressed air enters the oil-water separation device 110, the oil and water are effectively separated. The oil mist monitoring module 108 monitors the separation effect in real time and transmits it to the central control module 107. After comparing with the preset threshold, the central control module 107 finds that the oil mist content in the separated air is still high, and then adjusts the operating parameters of the oil-water separation device 110, such as increasing the separation time, increasing the separation pressure, etc. This ensures that the compressed air in the workshop is clean and dry, reduces the risk of circuit boards being contaminated by oil mist, and improves product quality and production stability.

[0080] like Figure 2 As shown, in one embodiment of the present disclosure, the reflow workshop power supply system further includes:

[0081] Communication module 113 and early warning module 114.

[0082] The communication module 113 and the early warning module 114 are both connected to the central control module 107 .

[0083] In this embodiment, the communication module 113 establishes a data transmission channel between the central control module 107 and other related devices or systems to achieve information exchange and sharing. The early warning module 114 constantly receives monitoring data and analysis results from the central control module 107 and issues an alarm signal in a timely manner when an abnormal situation occurs.

[0084] For example, in the daily production of the reflow soldering workshop, the communication module 113 transmits various sensor data collected by the central control module 107, such as voltage, oil mist content, oil-water separation effect, and other information, to the remote monitoring terminal or the upper management system in real time. At the same time, when the central control module 107 analyzes the voltage anomaly, the oil mist content exceeds the standard, or the oil-water separation device 110 fails, the early warning module 114 is immediately triggered. The early warning module 114 can remind on-site operators and maintenance personnel to deal with it in time through sound and light alarms, SMS notifications, or system pop-ups. For example, when the air switch 101 is disconnected, the early warning sounds in time, and the operator quickly takes emergency measures to ensure that the production line does not stop and reduce losses.

[0085] This embodiment introduces the communication module 113 and the early warning module 114 to enhance the system's interactivity and security. The communication module 113 enables the central control module 107 to effectively communicate with the outside world and promptly obtain or transmit important information. The early warning module 114 quickly notifies relevant personnel when a system failure or potential risk occurs, allowing them to take appropriate measures to prevent the problem from escalating and ensure production continuity and stability.

[0086] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present disclosure.

Claims

1. A power supply system for a reflow soldering workshop, characterized in that: include: Power supply VCC, air switch, backup power supply, first relay, second relay and vacuum pump set in the reflow soldering workshop; The first end of the air switch and the first end of the vacuum pump are both connected to the power supply VCC, the second end of the air switch is connected to the first end of the first relay and the second end of the first relay respectively, the third end of the first relay is connected to the backup power supply, the fourth end of the first relay is grounded, and the fifth end of the first relay is connected to the first end of the second relay; The second end of the second relay is connected to the second end of the vacuum pump, and the third end of the second relay and the fourth end of the second relay are both grounded; The first relay is configured to connect the backup power supply when the air switch is disconnected, and the second relay is configured to control the power supply VCC to power the vacuum pump.

2. The reflow workshop power supply system according to claim 1, characterized in that: Also includes: Voltage detection module and central control module; The voltage detection module is connected to the central control module; The voltage detection module includes a resistor and a capacitor; A first end of the resistor is connected to the first relay and the first end of the capacitor, a second end of the resistor is connected to the second end of the capacitor, and the second end of the resistor is grounded.

3. The reflow workshop power supply system according to claim 2, wherein: Also includes: Oil mist monitoring module; The oil mist monitoring module is connected to the central control module, and is configured to detect oil mist content information of circuit boards in the reflow soldering workshop.

4. The reflow workshop power supply system according to claim 2, wherein: Also includes: Circuit board cleaning module; The circuit board cleaning module is connected to the central control module.

5. The reflow workshop power supply system according to claim 4, characterized in that: The circuit board cleaning module includes: cleaning agent storage tank, oil collection tank, recovery pump, spray head and rotary wiper head; The recovery pump is connected to the oil collecting tank and the central control module respectively, the nozzle is connected to the cleaning agent storage tank and the central control module respectively, and the rotary wiping head is connected to the central control module.

6. The reflow workshop power supply system according to claim 3, wherein: Also includes: Oil-water separation device; The oil-water separation device is connected to the central control module.

7. The reflow workshop power supply system according to claim 6, wherein: The oil mist monitoring module includes: Circuit board detection sensor and oil-water separation detection sensor; The circuit board detection sensor is arranged above the circuit board, and the circuit board detection sensor is connected to the central control module; The oil-water separation detection sensor is arranged at the output end of the oil-water separation device, and the oil-water separation detection sensor is connected to the central control module.

8. The reflow workshop power supply system according to claim 2, wherein: Also includes: Communication module and early warning module; The communication module and the early warning module are both connected to the central control module.

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