[Boutique] Electrical Internship Report

This article directory 1 electrician internship report 2 electrician internship report 3 electrician internship report part 1: electrician internship report

I. Internship purpose

Internship is a practice. It is an important link between theory and practice, application and consolidation of professional knowledge, and an important means of cultivating our abilities and skills.

Internship is an indispensable part of our design process after studying a professional course. It has great significance for cultivating our hands-on ability, and it also allows us to understand the difference between traditional mechanical manufacturing processes and modern mechanical manufacturing techniques. Internship is a necessary prerequisite for us to go to work. Through internships, we can directly contact the society, understand social needs, deepen our understanding of society, enhance our adaptability to society, integrate ourselves into society, cultivate our practical ability, and shorten our experience from a university student. The thought-to-business distance between a staff member lays the foundation for the transformation of our social role after graduation. There are several specific purposes:

1. Familiar with the use, maintenance and repair of common tools for manual welding.

2. Basically master the welding technology of manual soldering iron, can independently install and solder simple electronic products, and be familiar with the production process of electronic product installation process.

3. Familiar with the steps and methods of designing printed circuit boards, familiar with the process flow of hand-made printed circuit boards, and design and manufacture printed circuit boards according to circuit schematics and components.

4. Familiar with the types, models, specifications, performance and scope of use of commonly used electronic devices, and can refer to related electronic device books.

5, can correctly identify and select commonly used electronic devices. 6. Understand the welding, debugging and maintenance methods of electronic products. Second, the internship content

Internship project 1: Safe use of electricity 1, understand the importance of safe use of electricity

2. Recognize electric shock and its considerable protective measures, including understanding the types of electric shock, the factors affecting the degree of injury to the adult body of electric shock, the cause of electric shock, the technical measures to prevent electric shock, the first aid and electric fire protection. 3. Safe use of electricity

4, the safe use of equipment

5, the laboratory safety operation notes

Internship 2: Commonly used electronic instruments

This project mainly introduces the use, specifications and precautions for use of commonly used electrical and electronic tools. Familiar with and master the structure, performance, use methods and operation specifications of common electrical and electronic tools, will help us improve work efficiency and product quality and even protect personal safety.

The tools we need include: 1. Screwdriver 2, wire cutter 3, needle nose pliers 4, wire stripper 5, electrician knife

6, low voltage electroscope

7, scorpion, scissors, sickle

Internship 3: Recognition and testing of commonly used electronic components

The electronic whole machine is composed of a series of electronic components, which masters the correct identification of common components, and uses common sense and quality identification methods, which will play an important role in improving the quality and reliability of electronic products. :

1, resistor 2, potentiometer 3, capacitor 4, inductor 5, diode 6, triode 7, integrated circuit

Internship Project 4: Use of Common Tools, Welding Process and Welding Training

This project introduces the use, specifications and precautions for use of commonly used electrical and electronic equipment. Common tools include:

1, electric iron 2, suction tin

3, auxiliary tools, etc.

Internship 5: Use of Protel 1 - Draw circuit schematics 1. Understand the application of Protel 99 SE

2, draw the schematic diagram, take the schematic diagram of the light control circuit controlled by 555

3, use software on the computer, and use some circuit components to design the circuit diagram

Internship 6: Protel use 2 - draw printed circuit diagram 1, understand Protel 99 SE software automatic wiring, complete the wiring work of the printed circuit class

2, according to the previously designed 555 light control circuit schematic diagram using automatic wiring layout and routing to draw its single-sided printed circuit diagram

3, use software on the computer, and use some circuit components to design the circuit diagram

Internship 7: Production of printed circuit boards

1. Understand the functions of printed circuit boards, the characteristics of printed circuit boards, the types of printed circuit boards, and the structure of printed circuit boards.

Into, with the same copper plate

2, the physical method of PCB board rapid production, the chemical method of PCB board rapid production, the ratio of various rapid board making methods

Comparative, printed circuit board inspection

3, the basic production method of PCB board, the main process flow of single and double panel, the main production process of PCB board processing

Internship 8: Circuit assembly and commissioning 1. Understand the purpose of electronic product debugging 2. Debug electronic products

3. Understand the debugging methods of electronic products, including visual inspection before commissioning, power-on observation, static debugging and dynamic debugging.

Internship Program 9: Electronic Machine Product Assembly

1. Understand the structure and assembly of electronic products, including: the main components of electronic products, the assembly of electronic products

2, the assembly of printed short circuit board, including the formation of component leads, component insertion, soldering of printed circuit boards, soldering of vulnerable components, wiring. Including the welding of wires and connecting terminals, soldering wires on metal plates, pressing wires, connecting plug-ins 4. Fastening and installation, including: fasteners, screwing and precautions

Internship Project 10: Assembly of lighting circuit 1. Assembly of incandescent lighting circuit controlled by one lamp and one switch 2. Assembly of fluorescent lamp lighting circuit 3. Assembly of dual control lighting circuit

Internship Program 11: General Indoor Electrical Circuit Installation

In the household electric line, a control device such as a power meter, a miniature circuit breaker, an earth leakage circuit breaker, and a low voltage distribution box are disposed. Through the study of this project, we need to understand the functions of these electrical devices and how to install and use them. Commonly used low-voltage power distribution control devices include:

1, the electricity meter

2. Miniature circuit breaker 3, leakage circuit breaker 4, low voltage distribution box

Third, the internship summary or experience

A week of electrician internships, said that the length is not long, short and short, but during this period we have learned a lot of technology, laying the foundation for our future work and entering the social field. During the internship, I fully satisfied the curiosity of our previous electrical profession. Because we not only have to connect the circuit, solder the circuit board, but also the independent design of the radio, which we seem to be impossible to accomplish before, but we have completed this task.

The one-week internship soon ended, and among us we had a hard time, excitement, frustration, and surprise. The most deeply felt in the internship is the importance of the practice of connection theory. When encountering practical problems, just think carefully and use the knowledge you have learned to do it step by step. This time includes safe use of electricity, the use of common electronic equipment, the recognition and detection of common electronic components, the use of common tools, welding processes and welding training, the use of Protel 1 - drawing circuit schematics, the use of Protel 2 - Drawing printed circuit diagrams, manufacturing of printed circuit boards, circuit assembly and debugging, assembly of electronic complete products, assembly of lighting circuits, and installation of general indoor electrical circuits. The purpose of this internship is mainly to understand the electronics and electrical appliances, to understand the electronic components and the assembly of electronic components, to further understand the professional knowledge of electronic information technology, and to cultivate and exercise our practical skills to make our The theoretical knowledge and practice are fully combined to produce high-quality talents who not only have professional knowledge, but also have strong hands-on ability, can analyze problems and solve problems, and learn better in the future.

In this experiment, we have to do it ourselves. Some things look simple, just like the circuit board. We usually look like a small version, but we only know that we need to write it. Very small parts are soldered on the circuit board, but there are a lot of things to pay attention to in actual operation. Only when you do it can you feel the mystery. Some things are different from your imagination. Our experiment is to We crossed the gap between reality and theory. However, through this experiment, we also found that some things seem to be practical. In this internship, we have to go to the circuit, that is, use some wires to connect some parts together, and also need to consider various aspects, such as Whether it is reversed, whether to prevent leakage, because these are related to our usual home, so we have learned more than knowledge, but also learned the common sense of daily life. In addition, the most exciting thing about this internship is the production of the radio, because the radio is almost made by ourselves, from soldering boards, to installation, to audition, all of which are our own, the most The hard part is soldering the board, because the parts that come into contact with us are very small, then we have to be very careful to solder the components to the board, because a little soldering error will cause the final product to appear like this. problem. After the finished board is soldered, we also need to debug the radio. This is also a very important part. During the internship, we learned that the debugging process is to ensure the success of our results.

In the debugging of the radio, we clearly understand how to check the radio's fault. For example, we found that the radio has no sound, it is likely that the radio's circuit board is short-circuited in a certain section. Or we find that the radio has sound but the sound is not the radio, but the sound of "shasha", then this is not a short-circuit problem, it should be due to the solder joint or poor contact of the components, so we need to check The board is soldered. It is after this series of debugging and inspection that we have made a big palm radio. In addition to the design of the radio, we also have a design of the light control circuit board. This internship course requires us to design ourselves from the circuit board. We first use the protel software to design the circuit diagram on the computer and print it again. The PCB is made by the thermal transfer method, and the excess copper piece is chemically removed. Finally, the first picture of the circuit board is left, and it needs to be punched and polished to become a circuit board. With the board, we need to repeat the previous steps to solder the components. After two days of welding, debugging, and inspection, I finally finished my light control board. During the internship, I also found that a very important thing is that the help of classmates is very important. My light control circuit class is completed by the help of classmates.

This experiment gave us such an opportunity, and now we can make it independently. In general, after a week of study and training, we have a certain understanding of the electronic and electrical engineering, and also have a certain understanding of the welding process, circuit design, and protel software application. This is also the first time in our university. Once I came into contact with things close to the technical level, I believe that these things have important guiding significance in future electronic process internships, and they play an essential role in daily life.

Through this internship, I have a certain understanding of the direction my professional career is engaged in. In the internship, I also cultivated a good quality of mutual cooperation, because in our internship we have a lot of time to cooperate, just like welding wire cubes. This quality is very helpful in our future entry into society. This internship combines basic skills training, basic process knowledge and everyone's hands-on skills to cultivate our practical ability and innovative spirit. As a university student in the information age, as a high-skilled talent cultivated by the state, it is not enough to answer questions in the classroom. The basic hands-on ability is the basis and necessary condition for all work and creation.

I am very grateful to the teachers for their careful guidance. From them, I have learned a lot of things that I can't learn in books. I teach you how to connect theory with practical operations. These things will be studied or lived in the future. China will help me a lot.

A short internship in a week, but gave me a direction for my future development, that is, thinking about doing things, doing more with less. More importantly, the mentality of doing things can also be honed and can change many bad habits. Through the study with everyone, the exchange of heart and heart and the gradual proficiency, we have learned more valuable knowledge. The internships have been a bit of a hard work these days, but everyone is very happy. Through this internship, we have just developed a good hands-on habit. It makes us more fulfilling and richer. This is the harvest of the internship in a week. I hope there will be more. The harvest is accompanied by me, to the ocean of knowledge, to the unknown future.

Part 2: Electrician Internship Report

First, the purpose of the internship

There is a certain perceptual and rational understanding of electrical components and electrical engineering. Get practical production knowledge and installation skills through internships.

Familiar with the steps and methods of printed circuit board design, familiar with the process flow of hand-made printed circuit boards, can design and manufacture printed circuit boards according to circuit schematics and components.

Improve the ability to analyze problems and solve problems.

Enhance independent work ability and cultivate team spirit.

Second, the internship equipment

Zhongxia brand ZX-05 FM and AM radio experiment kit electric iron screwdriver, tweezers and other necessary gadgets rosin and tin two 5th battery

Third, the internship content

Identify simple electronic components and electronic circuits. Learn how the radio works.

After getting the kit, check the quantity one by one against the "component list". If possible, use a multimeter to measure the quality of the components, especially the ceramic capacitors. It is best to use a capacitance meter to measure.

Familiar with the drawings.

According to the drawings, the welding components are welded according to the principle of welding small components first, then welding the large components, and finally welding the integrated blocks. The components are placed on the bottom plate as much as possible, and the components are not inserted into the wrong position. The integrated block CD1691CB adopts a double-row 28-pin patch structure, which has a dense row of legs. It is quickly soldered with a pointed tip during soldering. If a soldering is unsuccessful, it should be cooled before proceeding to the next soldering. Bad integrated block, after welding, check whether there is any false, false, wrong welding, and whether there is a short circuit caused by dragging.

Assembled into a radio as described above. Install the battery to receive the broadcast AM segment, and the antenna can be received by the FM broadcast. Medium wave adjustment: Since various parameters are designed on the integrated block, the debugging is very simple. It is only necessary to pull the radio station in the middle band. L1 and T1 are respectively adjusting the coverage of the high frequency part and the oscillation frequency of the medium wave, T3 Is to adjust the intermediate frequency.

FM frequency FM adjustment: L2 and L3 are respectively adjusted to cover the high frequency part and the oscillation frequency. When adjusting, only the inductive screwdriver is used to toggle their tightness. Here, the adjustment of L3 is very important, which directly affects the number of stations. . When the tightness of the L3 is still not received or the number of the stations is not enough, please increase or decrease the number of turns of l3 to achieve satisfactory results. T2 is the intermediate frequency of 10.7MHz. T1 T2 T3 has been adjusted to the specified frequency before leaving the factory. It only needs to be fine-tuned left and right when adjusting.

Attachment 1: Radio schematic and circuit board diagram.

Fourth, the internship summary

On the first day, before entering the welding laboratory, the teacher briefly explained the structure and working principle of the radio, let us have a general understanding of the radio, and I was more aware of the internship.

Entering the lab, the teacher sent us a ZX-05 FM and AM radio experiment kit. Our job in the next few days is to install the kit as a qualified radio. After the experimental team disassembled the kit, the component list was carefully checked to see if the components were missing or damaged.

After returning to the bedroom, we checked the relevant information online and watched the internship video.

Before welding the components on the second day, we used the circuit board practice of the previous seniors to master the usage of the pen. When we started our own practice, our solder joints can be described as "can not bear to gamble", and some students even have hand shaking when welding. The teacher told us to use a soldering pen to touch the foot and the chip when soldering, and then quickly push the tin into the low end of the tip of the pen, and then quickly lift the tin and the pen. In this way, a better welding can be completed, and the speed and accuracy of the welding can be improved while avoiding the virtual welding, and the hand tremor during the welding process can be avoided to some extent, so that the welded joints are also relatively good.

Then, our experimental team carefully studied the radio schematic and printed circuit board. After many familiarizations, you can be confident and understand the position and function of each component.

Then solder again. Use the method that the teacher gave us, first solder small components, then solder large components, and finally solder the integrated blocks. The welding process of small components and large components is relatively smooth, and there is a little trouble in soldering the integrated blocks. Due to the tip of the tip of the pen and the lack of our experience, the feet of the block are densely packed. After the soldering, we found that the soldering pin was scratched, which caused a short circuit. After thinking about it, we tried to fix it, but the problem of dragging tin has not been solved.

After asking the teacher, the teacher showed us a new way – instead of welding one foot separately, we used a large drop of tin droplets to roll down a row of solder joints in a row of integrated blocks. We found that where there are solder fillets and solder tabs, the solder will automatically stick, and where there is no contact between the solder fillet and the solder tab, the tin will automatically roll down. This will quickly and perfectly weld a whole block of integrated blocks.

Under the guidance of the teacher, we carefully completed the radio. After repeated inspections, we installed the battery for debugging with expectation. After careful debugging, the music sounded clear on the radio! We succeeded! Our hearts are full of joy and sense of accomplishment.

Through this internship, I got a lot of gains. These are things that I can't usually learn in class theory. My main achievements are as follows:

1. During the internship, you should not only care about whether the function is qualified after welding, and the process should be more demanding;

2. Mastered the use of several basic electrical tools, and learned the basic common sense of wiring and component layout in circuit installation;

3. This internship has greatly enhanced our team spirit and cultivated our hands-on practical ability and careful and rigorous style.

This internship gave us a very meaningful social practice class, which greatly improved our overall quality, enabled our theoretical knowledge to be integrated into practice, and made me more confident in my major. Let us have a preliminary systematic understanding of the theory of electronic processes. We learned the techniques of soldering common components and circuit components, the design and fabrication of printed circuit board diagrams, the working principle of radios, and the role of components. This knowledge is not only effective in the classroom, but also has great guiding significance for the learning of electronic technology courses in the future. It has practical significance in daily life; it is also a great exercise for one's own hands-on ability. Practice knows the truth, and all the inventions and creations are tested in practice. Without sufficient hands-on ability, it is extravagant to make achievements in future research, especially experimental research. During my internship, I exercised my own hands-on skills and improved my ability to solve problems. For example, when the radio was assembled and debugged, the spacing of several pads was extremely small, and they were welded together with a little carelessness, but I still completed the task. During my internship, I exercised my own hands-on skills and improved my ability to solve problems.

I am very grateful to the teachers and classmates who helped me during this internship. Thank you!

Part 3: Electrician Internship Report

I. Internship time: 2006-2-27~2006-3-3

2. Place of Internship: Electrical and Electronic Laboratory of Hunan Institute of Engineering

Third, the instructor: Teacher Yang, Teacher Li

Fourth, the purpose of the internship:

Through a week of electronic internships, I have a certain perceptual and rational understanding of the installation and commissioning of electronic components and radios, and have laid the foundation for the future of electronic technology courses. At the same time, the internship enabled me to acquire the actual production knowledge and assembly skills of the radio, cultivated my ability to connect theory with practice, improved my ability to analyze and solve problems, and enhanced my ability to work independently. The most important thing is to cultivate the spirit of teamwork, discussion and common progress with other students. details as follows:

1. Familiar with the use of common tools for manual soldering and its maintenance and repair.

2. Basically master the welding technology of manual soldering iron, and can independently install and solder simple electronic products. Familiar with the production process of the installation process of electronic products.

3. Familiar with the steps and methods of printed circuit board design, familiar with the process flow of hand-made printed circuit boards, can design and manufacture printed circuit boards according to circuit schematics and components.

4. Familiar with the types, models, specifications, performance and scope of use of commonly used electronic devices, can refer to the relevant electronic device books.

5. Ability to correctly identify and select commonly used electronic devices, and be proficient in using ordinary multimeters and digital multimeters.

6. Understand the welding, debugging and maintenance methods of electronic products.

V. Internship content:

Sixth, the feeling of welding internship:

One of the most challenging exercises in my internship during the week was welding. Welding is one of the basic methods of metal processing. Its basic operation is "five-step method." Prepare welding, heat the weldment, melt the solder, remove the solder, and remove the soldering iron. It seems easy, but it takes a long time to practice. The solder joints at the beginning can only be described by the words “ugly and ugly”, but the welding assessment forced us to complete the assessment target in just one day. It can be said that there must be a qualitative leap. So I endured my mind, arrogant and arrogant, and slowly came. In the process of constantly challenging myself, my hand holding the soldering iron does not shake, and the hand that sends the solder can basically master the dosage, and the welding technology is becoming more and more mature. When I finally managed to complete a qualified solder joint in the shortest amount of time, the fear of soldering had long since dissipated, and I was replaced by confidence in my ability to do it. In the process, I feel deeply that it may seem simple, but it may not be the case. In the process of welding internship, I learned a lot of things that I didn't know before. For example, I only know that there is a soldering iron before the internship. I don't know that there are many kinds of them. There are single-use, dual-use, and temperature-regulating. There are so many types of thermostatic, direct heating, inductive, internal and external heating. Also, you can't use rosin to wipe the soldering iron before hanging the tin, which will speed up its corrosion and reduce air pollution, and so on. However, I also encountered a lot of things that I don't understand. 1. Why do you want to hang the solder on the solder to prevent oxidation? As long as I clean the surface of the soldered component, I don't understand it. After the soldering iron is completely heated, whether it is first coated with flux or first with tin, I use the latter, some people use the former. They are all welded out, but I often get a situation of welding in the process of welding, and the latter is not to speed up its corrosion and reduce air pollution, I don't understand.

Seven, the feeling of design internship of printed circuit board diagram

The welding challenge I have to do, then the printed circuit board design is challenging my ability to quickly accept new knowledge. Under the premise that I have never touched the printed circuit board diagram in the past, it is a great challenge for me to use one afternoon to accept and digest the contents of the teacher. In this process, I mainly exercised the spirit of teamwork, discussion and common progress with me and other students. Because I am not very clear about circuit knowledge, it can be said to be vague. But when I have something to understand, I will ask other students, even if they are busy thinking, they will stop to help me and eliminate my blind spots. When I have any idea to tell them, they will not accept my advice because I have no idea. In the whole process of this internship, although I was only a supporting role, I deeply felt the true meaning of friendship between my classmates. During the internship, I was familiar with the process flow, design steps and methods of printed circuit boards. However, I have not been able to independently complete the design of the printed circuit board diagram. It is a pity. This internship forced me to believe that my knowledge is still not perfect and that the design ability needs to be improved.