WO2010060178A2

WO2010060178A2 - Mobile modular laboratory for electricity and electronics teaching

Info

Publication number: WO2010060178A2
Application number: PCT/BR2009/000441
Authority: WO
Inventors: Severino Cervelin
Original assignee: ADUR, Renato Guimarães; BUKTA, Hélio Pedro
Priority date: 2008-11-28
Filing date: 2009-11-27
Publication date: 2010-06-03
Also published as: BRPI0805517A2; WO2010060178A3

Abstract

Mobile modular laboratory for electricity and electronics teaching, the present invention refers to a Mobile Modular Laboratory consisting of cabinets (1 ), easel (2), modules (3), measurement and control apparatus (4), support tools (5), personal protection equipments (7), extension cord (8), feeding and electrical protection module (9), fire extinguisher (10) and blackboard (11 ), which intends to assist the training process and development on electrotechnic and electronics areas, improving professionals, preparing them to their insertion in the labor market. The equipment has advantages such as being specific and containing items described on the attached books, being one hundred percent usable on disciplines of technical courses, of including books and personal protection equipment (PPE), collective protection equipment (CPE) and first aid material that come with the product, of being modular, meeting the needs of all areas of electronics, of being light and of easy transportation, handling, assembly and storage.

Description

MOBILE MODULAR LABORATORY FOR ELECTRICITY AND ELECTRONICS TEACHING

The present patent application refers to a

Mobile Modular Laboratory, which intends^1* to assist the training process and development on electrotechnic and electronics areas, improving professionals, preparing them to their insertion in the labor market. The equipment has advantages such as being specific and containing items described on the attached books, being one hundred percent usable on disciplines of technical courses, of including books and personal protection equipment (PPE), collective protection equipment (CPE) and first aid material, being modular, meeting the needs of all areas of electronics, of being light and of easy transportation, handling, assembly and storage.

As it's known by technicians connected to training and vocational courses, nowadays it exists mobile laboratories manufactured in aluminum composition, main bench, consisting of two working places that will work as a base for using personal kits and separate tables for storing engines, used mainly on professional training centers and vocational schools from the several areas of the electrical energy sector; mobile laboratory in a single module with fundamental typical functions of fixed laboratories consisting of a one-piece body with built-in metallic chassis in special synthetic material stiffened with fiberglass, with robust construction that difficult its handling; and fixed laboratories consisting of rooms and benches on masonry with single use, which mostly is not specific, has limited floor space not allowing many students, depending of the presence of a full time teacher and availability of place.

Researching Brazilian and international patents database, we have found on the state of art the following patents:

Brazilian Patent MU6201418-8, that reveals electroelectronic bench, without wheels, consisting of upper and lower separable parts, considering that the drawers are located on the lower part, arranged horizontally and plugs together with the drawers, on the upper part, at the backend, a horizontal girder with adjustable height which has plugs.

Brazilian Patent MU 7503043-8, that shows a single mobile module, equipped with hydraulic rack, sink, tap, clean water reservoirs, sewage, electronic control panel, electric accumulator, fixed or variable energy measurers. Its main body consists of one-piece body with built- in metallic chassis in special synthetic material, stiffened with fiberglass. Also presents organized storage compartment with several utility kits, keeping them available on the same place, being able to displace it without great effort due to its wheels and support for movement.

Brazilian Patent MU 8100289-0, shows a utility model of a module with new arrangement of mobile laboratory with bench, emergency light, compartment for storing chemical products with a security lock and ventilation door, tank for electrolysis experiments, white board for further explanations about the experiments, water level reader on the reservoir, support for placing towel paper, a water distillation system with vaporizer, duct, condenser and thump keg.

Brazilian Patent MU 8100060-0, shows a mobile laboratory, with surface anti-skid bench, salient borders avoiding draining of liquids, fire extinguisher, uninterruptible Power system (UPS) and shelves on the upper internal stocking part.

German Patent DE 2155298, shows a portable laboratory bench, with adjustable height, fixed sink, with flexible connection for electricity inputs or outputs, water, gas and/or compressed air installation, fixed plugs for energy supply and/or measurement, placed on the floor for connecting flexible tubes.

German Patent 4142453, shows bench without wheels, consisting of upper part with measurement components and control panel, table with two fixed components and drawers on the lower part. This work station system is used for testing communication unities or components. At least one operational and indication unit communicates with the equipment being tested with network line.

American Patent US 5484293, shows mobile multidisciplinary laboratory for self-learning / studying through experimentation and exploring methods. The referred laboratory is permanently preconfigured, eliminating installation, having physical equipments and consumer items for complex investigation, does not. require a teacher, can be used individually or in groups, providing access to the library holdings and ends operationally its use. The current laboratories have as disadvantages not being specific,. demanding assembly time and preparation, are not modular, depend on space; do not have specific books that come with the product, are heavy and of difficult displacement.

MOBILE MODULAR LABORATORY FOR

ELECTRICITY AND ELECTRONICS TEACHING, object of the present patent application was developed to assist the process of instruction and training on the electric and electronic areas, including additional instructions on work safety and first aid on eletrotechnics and electronics, with demonstration of tools and materials used on practice being flexible when teaching several subjects on the same place. Has security protection, allows demonstration of main tools and electric materials used on electro-electronic practice, tools for controlling and measuring the functioning of the observed components, its test and demonstration. Has also frontal space for demonstration (shiftable) for each type of class, easel, built so the module could be substituted, for each type of class, kits for instrumentation and books and equipments for self protection, cases to support disciplines and electro-electronic industrial practice and drawers have divisions with fitting spaces for components. Is applicable for continued education, providing a solid base to professionals that search technical training, improvement and upgrading; for training in companies improving their level of productivity; opened to the community in general, and applied for on-site practice of distance teaching. Ameliorates learning, is fully practical and applicable, providing consistent training and preparing for placement in the labor market; lowering costs due to not needing constructing buildings, quick assembly for classroom practice and low cost per student. The high quality books content and visual chart are related to the practical classes held on the mobile laboratories of the present application, assuring the students learning, on the techniques for teaching electrotechnics and electronics, on teaching work safety including scripts of protective procedures against accidents and first aid and security and preparation of the equipments assembly. Regarding the security aspect, the advantage of being modules, Terminal Blocks with exposed wires do not exist. More efficient classes on same period (time) and preparing expenses, making it possible to develop more practical activities. When speaking about the language used in the collection of books that come with the mobile modular laboratory, explanations were alternated with the technical language, so that the student will gradually incorporate the technical terminology of the area, in other words, that the exhibition would start from the explanation and lead to the concept and technical language.

For better understanding of the present patent the following figures were attached:

Figure 1., shows the front view of the Mobile Modular Laboratory of the present patent application, when assembled;

Figure 2., shows the side view of the Mobile Modular Laboratory of the present patent application, when assembled;

Figure 3., shows a sectional top view of the

Mobile Modular Laboratory of the present patent application, with its doors opened;

Figure 4., shows the side view of the Mobile Modular Laboratory of the present patent application;

Figure 5., shows the front view of the Mobile Modular Laboratory of the present patent application, with its doors opened;

Figure 6., shows the back view of the Mobile Modular Laboratory of the present patent application;

Figure 7., shows the front view of the Mobile Modular Laboratory of the present patent application, in detail its blackboard;

Figure 8., shows the module^'s front view of the Mobile Modular Laboratory of the present patent application;

Figure 9., shows the module^'s side view of the Mobile Modular Laboratory of the present patent application;

Figure 10., shows the front view of the feeding and electrical protection module of the present patent application.

The Mobile Modular Laboratory consists of cabinet (1) of prismatic poligonal shape, with doors (1-A)₁ hinges (1-A-1) and lock (1-A-2), shelves (1-B) of prismatic shape and located inside the cabinet (1), drawers (1-C) of prismatic shape and located inside the cabinet (1), and with handles (1-C-1), space for storing the easel (1-D), which is placed in the space between the front part of the drawers and shelves and the front part of the doors, wheels (1-E) with locks on the Iqwer part and the cover (1-F) on the upper part with holes (1-F-1); easel (2) of "Y" inverted shape, with two supports for fixation (2-A) with "L" shape and with screws (2-A-1) with butterfly shaped screws (2-B); boards (2-C) of rectangular shape with internal frames (2-C-1), located on the superior part of the easel (2), dimensioned for fitting the modules with components that are being tested and demonstrated (3); modules to be tested and demonstrated (3) of plate with rectangular shape with posterior rectangular box containing components to be tested and demonstrated (3-A) fixed over the previously mentioned plate and fit on the easel (2), either supported by the cover (1-F) and kept in the drawers (1-C); measurement and control apparatus (4) placed by fitting on the easel (2) either supported by the shelves (1-B) or on the cover (1-F) and kept on the shelves (1-B); tools and support material (5) kept on the drawers (1-C); books (6) with technical, learning and security content kept in the drawers(i-C); personal security equipment (7) kept on the drawers (1-C); extension cord (8) placed on the shelf (1-B); feeding and electrical protection module (9) with general circuit breaker (9-A), differential switch with shock protection (9-B) and feeding Terminal Blocks for practical activities in class (9-C) placed by fitting on the easel (2); fire extinguisher (10) placed sideways by the cabinet (1), kept on the shelf (1-B) and blackboard (11) placed sideways on the easel (2) and kept on the shelf (1-B).

The equipments and components to be tested and demonstrated (3) could be the following: direct current, frequency inverter for activating the induction motor, Induction Motors, RLC Circuit, Function Generator, Resistors, Capacitors, Diodes, Bipolar Transistor, Voltage Regulator, Operational Amplifier, Integrated Circuits, Transformers, Ring Conductors, Power supplies AC and DC, Audio and Van de Graaf Generator, Kit for Power verification, Centre for squared jumping ring, Constantan and Nickelchrome Resistance Panel, Rheostat, Resistance wire, Solenoid, Presence sensors, inductive and capacitive, Dimmers, Timer, Single-phase and bi-phase engines, Power supply/Breaker with protection system, Motor Circuit Breakers and Single-phased breaker, Single-phased and motor starter Autotransformer, Rectifier Bridge, Computer with operating systems and No- Break, Programmable Logic Controller, Synchronism columns, motor/generator group with a Continuous Current Machine, Dahlander Motor, Variable Voltage Transformer, Universal Motor, Mercury Vapor Ballast, sodium-, and metallic, Double and single action cylinders, valves, air distributer, pneumatic electrovalves, tree-phase inverter, function generator, 1n4148, Zener, LED, SCR TIC, TRIAC, DIAC, LDR, NTC, timer switch, pulsers for timer switch and auxiliary for centralized control, simple relay, time and bimetallic, photoelectric and impulse, common and mercury vapor fluorescent lamps, demountable didactic transformer, button and two-way switches, sockets, bells, ddr socket, starter and star switches, tri-phase contactor, several electronic buttons, clamp multimeter, reverse switch, knife switch for star-delta, panel indicators, independent units of emergency lights, metal ignitor for lamp, among others.

The measurement and control apparatus (4) could be the following: Power Meters and Analyzers, Digital Ocilloscope, digital Multimeter, digital Wattmeter, Luxmeter, Ammeter, didactic Compass, pendular Electroscope, Milliammeter, Multimeter, Logarithmic and linear Potentiometer, Varmeter, analog Voltmeter, cosφ meter, digital, optic and contact tachometer, Frequencimeter, synchronism columns, digital megohmmeter, Kelvin bridge for resistance measurement, Proto board, clamp-on ammeter, infrared thermometer among others.

The tools and support materials (5) could be the following: two position switches, soldering Iron, solder Sucker, Tin, pliers and cutting pliers, Tweezers, screwdrivers, Banana Cables / banana and banana / alligator, regular switches (on/off), several magnets, Connectors, Feeding Cables, Fuses, Starter set, Tools set, flexible small cables, coded decimal switch, Buzzer, Timer clock, several cables, Banana plugs and Terminal Blocks for plugs, cardiopulmonary resuscitation (CPR) doll, personal protection equipments (security glasses, protective boots, arc electric proof clothing etc.), collective protection equipments (fire extinguisher and others), books, blackboard among others.

All cabinets will have an extension cord (8) and a feeding electrical protection module (9), fire extinguisher (10) and blackboard (11), regardless of class or activity to be conducted.

The Mobile Modular Laboratory described above is able of being assembled with the following options of practical activities: a) Electronics Laboratory with Applied Electronics book; b) Electricity and Electric Measurement units Laboratory with the books: Basic Electricity, Electromagnetism and Circuits, and Electrical Averages; c) Electrical Machines Laboratory with the books: Transformers and Rotating Electrical Machines, and Electrical Machines Maintenance and Testing; d) Laboratory of Automation and Drive Elements with the books: Electromagnetic Drive, Electropneumatic Drive and Programmable Logic Controllers (PLCs); e) Electrical Installations Laboratory with the Electrical Installations of Buildings book; f) Computers with specific Programs with the book Computer Science Applied on Electrotechnics (CAD); and g) Work Safety and First Aid on Electrotechnic practice with the book Work Safety.

Before initializing the use of the Mobile

Modular Laboratory of the present patent application, the teacher together with the students, should take notice of the orientations below:

1. Notice what is being requested in the laboratorial activities;

2. Elaborate a list of the needed material to verify the practice and better assimilate the studied theme;

3. Carry the material to the appropriate place to practice and which has energy installed;

4. Confirm that the bench's power feeding breaker, where the practice is taking place, is turned off and, together with the students, verify where is the switchboard Power, so that in case of an emergency while practicing, students will know where to cut it out;

5. Avoid hitting the equipments;

6. Make sure the first aid equipments and all needed equipments for practice are in the room where practice takes place;

7. 7. Test all equipments to reassure that they are all operating perfectly; 8. Check if all students doing the practice are wearing safety glasses and appropriate gloves for the level of voltage being used, and other safety accessories that might be necessary;

9. Confirm if all other spectator students wear safety glasses;

10. Initiate assembling the practical activity demanded;

11. After concluding all connections, as requested DO NOT SUPPLY POWER TO THE CIRCUIT;

12. For your own safety, the student, the student will ask for the teacher's presence, who will verify IF the task is being done correctly, avoiding accidents and damage to the equipment.

For effectively utilizing the Mobile Modular Laboratory of the present patent the sequence above should be followed:

13. Supply Power to the circuit and make sure it is working in perfect conditions;

14. In case the practice is wrong, restart activities from item 7;

15. If it is right, the student will answer a few questions made by the teacher regarding the importance of the activity;

16. Switch off the bench's Power making sure if it is really without energy, testing with instruments if the voltage is zero;

17. In case there are further activities to be done, initiate from item 6;

18. Finishing the practical activity, disassemble the one previously done;

19. Put away all materials and equipments, on the same safe place where they previously were; and

20. Verify if the place of practice is clean and well organized.

Claims

1. MOBILE MODULAR LABORATORY FOR ELECTRICITY AND ELECTRONICS TEACHING, consisting of, cabinet (1) of prismatic poligonal shape, with doors (1-A), hinges (1-A-1) and lock (1-A-2), shelves (1-B) of prismatic shape and located inside the cabinet (1), drawers (1-C) of prismatic shape and located inside the cabinet (1), and with handles (1-C-1), space for storing the easel (1-D), which is placed in the space between the front part of the drawers and shelves and the front part of the doors, wheels (1-E) on the lower part and the cover (1-F) on the upper part with holes (1-F-1); easel (2) of "Y" inverted shape, with two supports for fixation (2-A) with "L" shape and with screws (2-A-1) with butterfly shaped screws (2-B); boards (2-C) of rectangular shape with internal frames (2-C-1), located on the superior part of the easel (2), dimensioned for fitting the modules with components that are being tested and demonstrated (3); modules to be tested and demonstrated (3) of plate with rectangular shape with posterior rectangular box containing components to be tested and demonstrated (3-A) fixed over the previously mentioned plate and kept in the drawers (1-C); measurement and control apparatus (4) and kept on the shelves (1-B); tools and support material (5) kept on the shelves (1-C); books (6) with technical, learning and security content kept in the shelves (1-B); personal security equipment (7) kept on the drawers (1-C); extension cord (8) placed on the shelf (1-B); feeding and electrical protection module (9) with general circuit breaker (9-A), differential switch with shock protection (9-B) and feeding Terminal Blocks for practical activities in class (9-C) placed by fitting on the easel (2); fire extinguisher (10) placed sideways by the cabinet (1), kept on the shelf (1-B) and blackboard (11) placed sideways on the easel (2) and kept on the shelf (1-B).

2. MOBILE MODULAR LABORATORY FOR ELECTRICITY AND ELECTRONICS TEACHING, according to claim 1 , characterized by, allowing the training of electrotechnics and electronics, and additional classes on work safety and first aid on electric and electronics.