Electron beam PCBA aging equipment

Abstract

The utility model discloses an electron beam PCBA aging device, and belongs to the technical field of integrated circuits. Comprising a shell, a real-time dynamic fault monitoring part and a signal input and switching part are arranged on the upper half portion of the front face of the shell, the real-time dynamic fault monitoring part and the signal input and switching part are distributed on the two sides of the upper half portion respectively, and a to-be-aged PCBA bearing part is arranged on the lower half portion of the front face of the shell. The side surfaces and the back part of the housing are provided with equipment heat evacuation parts, and the interior of the housing is provided with a power supply loop protection part and a load part. According to the electronic beam PCBA aging equipment provided by the utility model, different input signals, different real loads, visual dynamic monitoring and sensitivity abnormity alarm are integrated according to the performance of different PCBAs, the aged PCBA can be put into use again, and the stability of the equipment is improved to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of integrated circuits, in particular to an electron beam PCBA aging device. Background Art

[0002] PCB burn-in refers to the process of subjecting a circuit board to power-on operation for a certain period of time under certain conditions. This process changes the parameters of certain components on the circuit board, which is related to the board's age. Burn-in treatment is crucial for various circuit boards to improve product stability and reliability, ensuring the board's performance and lifespan in real-world use. Therefore, many circuit boards undergo burn-in treatment before shipment to ensure stability and reliability. Burn-in treatment can enhance board stability and significantly improve product reliability and safety. Burn-in treatment can also identify and resolve potential issues before shipment, eliminating problematic PCBA boards and replacing them with stable ones, thereby improving overall product performance and user experience.

[0003] The primary purpose of circuit board burn-in is to simulate the actual operating environment of a real-world application. By subjecting the PCBA to continuous or periodic operation for a certain period of time, its reliability and stability can be observed. This testing helps identify potential issues that may arise with long-term operation of the PCBA and ensure its long-term stability in real-world applications.

[0004] Currently, even products manufactured on production lines with mature design principles, mature processes, and strict quality control may still contain premature failures. Their presence significantly reduces the reliability of the entire batch of products. By screening and eliminating prematurely failing components, the components that pass the screening experience a low and constant failure rate from the start of use, thereby improving component reliability. PCBA aging is currently addressed in the following areas:

[0005] Different device manufacturers have different methods for component aging. Most manufacturers will purchase components in advance and store them for a period of time, allowing the electronic components to naturally experience the test of high temperatures in summer and low temperatures in winter. Some manufacturers will also conduct simple electrical aging, design special component aging boards, and perform power-on static aging according to the characteristics of the device, thereby effectively accelerating early failures. Some manufacturers will also conduct whole-machine experiments on electronic products, but this product is only used for new product finalization testing.

[0006] It can be seen that the existing technology still has problems such as single function, small scope of application, long aging process, single means and poor stability. Utility Model Content

[0007] The purpose of the utility model is to provide an electron beam PCBA aging device, which solves the problems of single function, small scope of application, long aging process, single means and poor stability.

[0008] To achieve the above-mentioned purpose, the utility model provides an electron beam PCBA aging device, including a shell, the upper half of the front side of the shell is provided with a real-time dynamic fault monitoring part and a signal input and switching part, and the real-time dynamic fault monitoring part and the signal input and switching part are respectively distributed on both sides of the upper half, the lower half of the front side of the shell is provided with a PCBA bearing part to be aged, the side and back of the shell are provided with equipment heat evacuation parts, and the interior of the shell is respectively provided with a power supply circuit protection part and a load part.

[0009] Preferably, the signal input and switching part includes a coaxial PCBA input signal circuit and signal switching and a deflection and focus PCBA signal input and signal switching circuit, and the above circuits are all controlled separately;

[0010] The coaxial PCBA input signal circuit and signal switching include focusing box one coaxial input, focusing box two coaxial input and switching circuit one, and focusing box one coaxial input and focusing box two coaxial input are connected through switch one and switch two;

[0011] The focusing PCBA signal input and signal switching circuit include deflection box one input, deflection box two input, focusing box three input, focusing box four input, switching circuit two and switching circuit three. The deflection box one input and the deflection box two input are connected through switch three and switch four, and the focusing box three input and the focusing box four input are connected through switch five and switch six.

[0012] Preferably, the real-time dynamic fault monitoring part includes a 15V PCBA real-time dynamic fault monitoring circuit, a coaxial PCBA real-time dynamic fault monitoring circuit, a deflection PCBA real-time dynamic fault monitoring circuit and a focusing PCBA real-time dynamic fault monitoring circuit;

[0013] The 15V PCBA real-time fault dynamic monitoring circuit includes two sets of 15V positive and negative outputs of the focusing box. One of the 15V positive and negative outputs of the focusing box is connected to the positive and negative poles of power supply No. 1, and the other 15V positive and negative outputs of the focusing box is connected to the positive and negative poles of power supply No. 2.

[0014] The real-time dynamic fault monitoring circuit of the combined axis PCBA includes the combined axis output of focusing box 1 and the combined axis output of focusing box 2. The combined axis output of focusing box 1 is connected to combined axis 1, combined axis 2, combined axis 3 and combined axis 4 respectively, and the combined axis output of focusing box 2 is connected to combined axis 5, combined axis 6, combined axis 7 and combined axis 8 respectively;

[0015] The deflection PCBA real-time dynamic fault monitoring circuit includes deflection box output 1 and deflection box output 2, where deflection box output 1 is connected to deflection No. 1 and deflection No. 2 respectively, and deflection box output 2 is connected to deflection No. 3 and deflection No. 4 respectively;

[0016] The real-time dynamic fault monitoring circuit of the focused PCBA includes the output of the focusing box one and the output of the focusing box two. The output of the focusing box one is connected to the focusing box one, and the output of the focusing box two is connected to the focusing box two.

[0017] Preferably, the power supply circuit protection part includes a power supply circuit, and the power supply circuit is provided with an emergency stop and a fuse for protecting the power supply circuit from sudden conditions.

[0018] Preferably, the load part includes a combined axis coil 1, a combined axis coil 2, a combined axis coil 3, a combined axis coil 4, a combined axis coil 5, a combined axis coil 6, a combined axis coil 7, an combined axis coil 8, a deflection coil 1, a deflection coil 2, a deflection coil 3, a deflection coil 4, a focusing coil 1 and a focusing coil 2, and the above coils are all relatively independent loads.

[0019] Preferably, the heat dissipation portion of the device is a plurality of heat dissipation holes arranged evenly and equidistantly.

[0020] Therefore, the present invention adopts an electron beam PCBA aging device with the above structure, which has the following beneficial effects:

[0021] The utility model integrates different input signals, different real loads, visual dynamic monitoring, and sensitivity abnormality alarm into an aging device according to the performance of different PCBAs. The PCBA can be put into use again after aging, which greatly improves the stability of the equipment.

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural diagram of an electron beam PCBA aging device of the utility model;

[0024] Figure 2 This is a schematic diagram of the back structure of an electron beam PCBA aging device of the present invention;

[0025] Figure 3 This is the input signal circuit diagram for the coaxial PCBA, deflection PCBA, and focus PCBA;

[0026] Figure 4 Circuit diagram for signal input and signal switching of deflection and focus PCBA;

[0027] Figure 5This is the ±15V PCBA real-time fault dynamic monitoring circuit diagram;

[0028] Figure 6 This is the circuit diagram for real-time dynamic fault monitoring of the coaxial PCBA of the focus box 1;

[0029] Figure 7 This is the circuit diagram for real-time dynamic fault monitoring of the coaxial PCBA of focus box 2;

[0030] Figure 8 To deflect the PCBA real-time dynamic fault monitoring circuit diagram;

[0031] Figure 9 To focus on the PCBA real-time dynamic fault monitoring circuit diagram;

[0032] Figure 10 Wiring diagram for 220Vac power supply;

[0033] Figure 11 This is a schematic diagram of the combined axis coil load;

[0034] Figure 12 This is a schematic diagram of the deflection coil and focusing coil loads;

[0035] Reference numerals

[0036] 1. Shell, 2. Signal input and switching part, 3. Bearing part to be aged, 4. Real-time dynamic fault monitoring part, 5. Heat evacuation part. DETAILED DESCRIPTION

[0037] The technical solution of the present utility model is further described below through the accompanying drawings and embodiments.

[0038] Unless otherwise defined, the technical or scientific terms used in this utility model shall have the usual meanings understood by persons of ordinary skill in the field to which this utility model belongs. The words "first", "second" and similar terms used in this utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0039] Example

[0040] like Figure 1-2As shown, the utility model provides an electron beam PCBA aging device, including a shell 1, the upper half of the front side of the shell 1 is provided with a real-time dynamic fault monitoring part 4 and a signal input and switching part 2, and the real-time dynamic fault monitoring part 4 and the signal input and switching part 2 are respectively distributed on both sides of the upper half, the lower half of the front side of the shell 1 is provided with a PCBA bearing part 3 to be aged, the side and back of the shell 1 are provided with a device heat evacuation part 5, and the interior of the shell 1 is respectively provided with a power supply circuit protection part and a load part.

[0041] The signal input and switching part 2 includes a separately controlled coaxial PCBA input signal circuit and signal switching and a separately controlled deflection and focus PCBA signal input and signal switching circuit;

[0042] The coaxial PCBA input signal circuit and signal switching include focusing box one coaxial input, focusing box two coaxial input and switching circuit one, and focusing box one coaxial input and focusing box two coaxial input are connected through switch one and switch two;

[0043] The focusing PCBA signal input and signal switching circuit include deflection box one input, deflection box two input, focusing box three input, focusing box four input, switching circuit two and switching circuit three. The deflection box one input and the deflection box two input are connected through switch three and switch four, and the focusing box three input and the focusing box four input are connected through switch five and switch six.

[0044] The real-time dynamic fault monitoring part 4 includes a 15V PCBA real-time dynamic fault monitoring circuit, a coaxial PCBA real-time dynamic fault monitoring circuit, a deflection PCBA real-time dynamic fault monitoring circuit, and a focusing PCBA real-time dynamic fault monitoring circuit;

[0045] The 15V PCBA real-time fault dynamic monitoring circuit includes two sets of 15V positive and negative outputs of the focusing box. One of the 15V positive and negative outputs of the focusing box is connected to the positive and negative poles of power supply No. 1, and the other 15V positive and negative outputs of the focusing box is connected to the positive and negative poles of power supply No. 2.

[0046] The real-time dynamic fault monitoring circuit of the combined axis PCBA includes the combined axis output of focusing box 1 and the combined axis output of focusing box 2. The combined axis output of focusing box 1 is connected to combined axis 1, combined axis 2, combined axis 3 and combined axis 4 respectively, and the combined axis output of focusing box 2 is connected to combined axis 5, combined axis 6, combined axis 7 and combined axis 8 respectively;

[0047] The deflection PCBA real-time dynamic fault monitoring circuit includes deflection box output 1 and deflection box output 2, where deflection box output 1 is connected to deflection No. 1 and deflection No. 2 respectively, and deflection box output 2 is connected to deflection No. 3 and deflection No. 4 respectively;

[0048] The real-time dynamic fault monitoring circuit of the focused PCBA includes the output of the focusing box one and the output of the focusing box two. The output of the focusing box one is connected to the focusing box one, and the output of the focusing box two is connected to the focusing box two.

[0049] The power supply circuit protection part includes a power supply circuit, which is equipped with an emergency stop and a fuse to protect the power supply circuit from sudden conditions.

[0050] The load part includes the combined axis coil 1, the combined axis coil 2, the combined axis coil 3, the combined axis coil 4, the combined axis coil 5, the combined axis coil 6, the combined axis coil 7, the combined axis coil 8, the deflection coil 1, the deflection coil 2, the deflection coil 3, the deflection coil 4, the focusing coil 1 and the focusing coil 2. The above coils are all relatively independent loads.

[0051] The heat dissipation portion 5 of the equipment is a plurality of heat dissipation holes arranged evenly and equidistantly.

[0052] Figure 3 This is the input signal circuit diagram for the coaxial PCBA, deflection PCBA, and focus PCBA. This equipment can simultaneously age eight coaxial PCBAs, with two independent control paths. When the coaxial selector switch is in position 1, coaxial PCBAs 1-4 are activated; when the coaxial selector switch is in position 2, coaxial PCBAs 5-8 are activated; and when both coaxial selectors 1 and 2 are in position, coaxial PCBAs 1-8 are activated. The coaxial selector switch selects different coaxial PCBA groups for aging by controlling the energization of different relays. This provides convenient support for future PCBA aging tests.

[0053] Figure 4 This is the signal input and switching circuit diagram for the deflection and focus PCBAs. This equipment can simultaneously age four deflection and two focus PCBAs, respectively. Deflection and focus are each separated into two independent burn-in paths. When the deflection selector switch is in position 3, deflection PCBAs 1-2 are active; when the deflection selector switch is in position 4, deflection PCBAs 3-4 are active; and when both deflection selectors are in position 3 and 4, deflection PCBAs 1-4 are active. The deflection selector switch selects different groups of deflection PCBAs for burn-in by controlling relay closure. When the focus selector switch is in position 1, focus PCBA 1 is active; when the focus selector switch is in position 2, focus PCBA 2 is active; and when the focus selector switches are in positions 1&2, focus PCBAs 2 and 3 are active. The focus selector switch selects different groups of focus PCBAs for burn-in by controlling relay closure.

[0054] the following Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9The following are circuit diagrams for dynamic fault monitoring of different PCBAs. This monitor features a digital display and two independent internal alarm contacts. In conjunction with an external alarm, the digital display provides real-time indication of dynamic changes in the corresponding PCBA output. The external alarm's sound and light provide timely indication of abnormal PCBA output conditions. The digital display can be set to upper and lower alarm limits; if the monitoring signal exceeds these limits, an audible and visual alarm will sound.

[0055] Figure 5 This is the ±15V PCBA real-time fault dynamic monitoring circuit diagram. Figure 6 、 Figure 7 These are the real-time dynamic fault monitoring circuit diagrams of the coaxial PCBA of focusing box 1 and focusing box 2. Figure 8 It is the deflection PCBA real-time dynamic fault monitoring circuit diagram, Figure 9 This diagram focuses on the real-time dynamic fault monitoring circuitry for PCBAs. Except for ±15V PCBAs, where each PCBA corresponds to two monitoring and alarm units, all other types of PCBAs have one corresponding monitoring and alarm unit.

[0056] the following Figure 10 This is a 220Vac power supply wiring diagram. There are emergency stop and fuses in the power supply circuit to protect the power supply circuit from sudden conditions. Figure 11 、 12 are the loads of this aged PCBA, where Figure 11 is the load of the combined axis coil, Figure 12 The load for the deflection coil and focus coil is the real load in the actual use environment, making the aging closer to the actual use situation.

[0057] Therefore, the present invention adopts the above-mentioned electron beam PCBA aging equipment, which integrates different input signals, different real loads, visual dynamic monitoring, and sensitivity abnormality alarm according to the performance of different PCBAs. The PCBA can be put into use again after aging, which greatly improves the stability of the equipment.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. An electron beam PCBA aging device, characterized by: It includes a shell, and the upper part of the front of the shell is provided with a real-time dynamic fault monitoring part and a signal input and switching part, and the real-time dynamic fault monitoring part and the signal input and switching part are distributed on both sides of the upper part respectively, and the lower part of the front of the shell is provided with a PCBA bearing part to be aged, and the side and back of the shell are provided with equipment heat evacuation parts, and the inside of the shell is respectively provided with a power supply circuit protection part and a load part.

2. The electron beam PCBA aging equipment according to claim 1, characterized in that: The signal input and switching part includes the coaxial PCBA input signal circuit and signal switching as well as the deflection and focus PCBA signal input and signal switching circuit. The above circuits are all controlled separately. The coaxial PCBA input signal circuit and signal switching include focusing box one coaxial input, focusing box two coaxial input and switching circuit one, and focusing box one coaxial input and focusing box two coaxial input are connected through switch one and switch two; The focusing PCBA signal input and signal switching circuit include deflection box one input, deflection box two input, focusing box three input, focusing box four input, switching circuit two and switching circuit three. The deflection box one input and the deflection box two input are connected through switch three and switch four, and the focusing box three input and the focusing box four input are connected through switch five and switch six.

3. The electron beam PCBA aging equipment according to claim 1, characterized in that: The real-time dynamic fault monitoring part includes the 15V PCBA real-time dynamic fault monitoring circuit, the axis PCBA real-time dynamic fault monitoring circuit, the deflection PCBA real-time dynamic fault monitoring circuit and the focusing PCBA real-time dynamic fault monitoring circuit; The 15V PCBA real-time fault dynamic monitoring circuit includes two sets of 15V positive and negative outputs of the focusing box. One of the 15V positive and negative outputs of the focusing box is connected to the positive and negative poles of power supply No. 1, and the other 15V positive and negative outputs of the focusing box is connected to the positive and negative poles of power supply No.

2. The real-time dynamic fault monitoring circuit of the combined axis PCBA includes the combined axis output of focusing box 1 and the combined axis output of focusing box 2. The combined axis output of focusing box 1 is connected to combined axis 1, combined axis 2, combined axis 3 and combined axis 4 respectively, and the combined axis output of focusing box 2 is connected to combined axis 5, combined axis 6, combined axis 7 and combined axis 8 respectively; The deflection PCBA real-time dynamic fault monitoring circuit includes deflection box output 1 and deflection box output 2, where deflection box output 1 is connected to deflection No. 1 and deflection No. 2 respectively, and deflection box output 2 is connected to deflection No. 3 and deflection No. 4 respectively; The real-time dynamic fault monitoring circuit of the focused PCBA includes the output of the focusing box one and the output of the focusing box two. The output of the focusing box one is connected to the focusing box one, and the output of the focusing box two is connected to the focusing box two.

4. The electron beam PCBA aging equipment according to claim 1, characterized in that: The power supply circuit protection part includes a power supply circuit, which is equipped with an emergency stop and a fuse to protect the power supply circuit from sudden conditions.

5. The electron beam PCBA aging equipment according to claim 1, characterized in that: The load part includes the combined axis coil 1, the combined axis coil 2, the combined axis coil 3, the combined axis coil 4, the combined axis coil 5, the combined axis coil 6, the combined axis coil 7, the combined axis coil 8, the deflection coil 1, the deflection coil 2, the deflection coil 3, the deflection coil 4, the focusing coil 1 and the focusing coil 2. The above coils are all relatively independent loads.

6. The electron beam PCBA aging equipment according to claim 5, characterized in that: The heat dissipation part of the equipment is a number of heat dissipation holes arranged evenly and equidistantly.

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