CN114822186A - Electricity principle teaching aid based on computer - Google Patents

Abstract

The invention relates to a computer-based electrical principle teaching aid, which solves the problems that the prior teaching aid can not well protect components and devices to avoid the damage of the components and the damage of the components caused by the line connection problem and is not beneficial to students to independently analyze faults at the same time, and comprises a bottom plate, wherein a panel for installing electrical elements, a power supply module matched with the panel, a controller and a PC are arranged on the bottom plate, students can design the positions of the electrical elements on the panel through the PC, then install the electrical elements on the panel and train the good connection habit of the students, the electrical elements comprise a shell, a detection line and an entity line are arranged in the shell, after the connection of the electrical elements is finished, the detection line is firstly communicated by default, the current and voltage information in the line can be reflected on the PC through the detection element arranged in the detection line, and the students can analyze the line according to the current and voltage information, arouse the interest of the independent students of the students.

Description

Electricity principle teaching aid based on computer

Technical Field

The invention belongs to the technical field of electrical teaching aids, and particularly relates to a computer-based electrical principle teaching aid.

Background

In the current circuit learning process, no practical operation is performed, under the guidance of a teacher, students correspondingly connect components through a circuit diagram, and complete the analysis of the circuit by using some detection elements according to the completed circuit structure and complete some electrical principle operations;

at present there is a lot of to the teaching aid of electricity principle, and it is common on the market to adopt the building blocks form to install each components and parts on the panel, and the connection between wire, the components and parts goes out sealed better comparatively safety, however, this kind of teaching aid also has certain shortcoming, if the short circuit phenomenon appears, causes the components and parts to damage very easily, changes the finished product and will increase use cost, also can not do benefit to the student and independently carry out the analysis of trouble simultaneously, is unfavorable for arousing the interest that the student studied.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a computer-based electrical principle teaching aid, which solves the problems that the existing teaching aid cannot well protect components and devices, avoids the circuit connection problem to cause the damage of the components and devices, and is not beneficial to autonomous fault analysis of students.

The technical purpose of the invention is realized by the following technical scheme:

the invention content part is as follows: the utility model provides an electricity principle teaching aid based on computer, includes the bottom plate, its characterized in that, install the panel on the bottom plate, interval arrangement distributes and is provided with a plurality of first through-holes on the panel, vertical sliding fit has first piece and second piece in the first through-hole, be 90 contained angle settings between first piece and the second piece, first piece and second piece are used for cooperating the connecting element module, the element module includes the shell, the shell both ends are provided with the connecting block that is used for connecting wire, two be provided with detection circuitry and the entity circuit of installation in the shell between the connecting block, be provided with the connection that the shifter is used for converting two circuits between detection circuitry and the entity circuit, still including setting up on the shell and panel cooperation be used for the locking mechanism of fixed element module.

The invention has the beneficial effects that:

1. the electric wire connecting device comprises a bottom plate, wherein a panel for installing electric elements, a power supply module, a controller and a PC (personal computer) which are matched with the panel are arranged on the bottom plate, students can design the positions of the electric elements on the panel through the PC, and then the electric elements are installed on the panel, so that the good wire connecting habit of the students is developed;

2. the electric element comprises a shell, a detection line and an entity line are arranged in the shell, the detection line is firstly communicated after the electric element is connected by default, current and voltage information in the line can be reflected on a PC (personal computer) through the detection element arranged in the detection line, and students can analyze the line according to the current and voltage information to arouse the interest of the students;

3. the invention also provides a switching mechanism for switching the connection of the detection circuit and the entity circuit, and the communication relation of the two circuits is switched by driving the matching block which is connected on the first rotating shaft in a sliding manner to be matched with the fan-shaped rotating plate, so that the structure is simple and the practicability is strong.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a perspective view of the present invention.

Fig. 3 is a partial structural view one of the present invention.

Fig. 4 is a second partial structural view of the present invention.

Fig. 5 is a view three of a portion of the structure of the present invention.

Fig. 6 is a partial structural view four of the present invention.

Fig. 7 is a partial structural view five of the present invention.

Fig. 8 is a partial structural view six of the present invention.

Fig. 9 is a seventh partial structural view of the present invention.

Fig. 10 is a partial structural view eight of the present invention.

Fig. 11 is a partial structural view nine of the present invention.

In the figure, 2, panel; 3. a first through hole; 4. a first support block; 5. a second branch block; 6. a housing; 7. connecting blocks; 8. a power supply module; 9. a PC machine; 10. a first resistor; 11. a first coil; 12. a second resistor; 13. a second coil; 14. a first magnet; 15. pressing a plate; 16. a pressure sensor; 17. a rotating plate; 18. a mating groove; 19. a first rotating shaft; 20. a matching block; 21. a second rotating shaft; 22. a third coil; 23. a second magnet; 24. a first baffle plate; 25. a baffle groove; 26. a pressing plate; 27. briquetting; 28. a second baffle; 29. a stay bar; 30. a pressure lever; 31. dialing a plate; 32. a limiting plate; 33. a limiting groove.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 11.

In the first embodiment, with reference to fig. 1-11, a computer-based electrical principle teaching aid comprises a base plate 1, a panel 2 is installed on the base plate 1, and is preset, the panel 2 is used as a base for bearing an electrical element module in an experimental process, a power module 8 for supplying power to the element module is arranged on the base plate 1, a self-locking switch is arranged on the power module 8, when the switch is pressed, the power is connected, and the switch is pressed again, then the power is cut off, and during the experiment, the element module is installed on the panel 2 according to the design of a student, and then the element module is connected with the power module 8 through a lead wire, in the invention, a controller is installed in the base plate 1, a PC 9 is installed on the base plate 1, the PC 9 and the controller can communicate with each other, the student can receive a circuit diagram issued by a teacher on the PC 9 during the experiment, and matched driving software is arranged in the PC 9, according to the design page that the panel 2 set up in the software, the student can design the position that every component module installed on the panel 2 in the software before the line, cultivates the good wiring custom of student, interval arrangement distributes and is provided with a plurality of first through-holes 3 on the panel 2, vertical sliding fit has first piece 4 and second piece 5 in the first through-hole 3, be 90 contained angles setting between first piece 4 and the second piece 5, predetermine, two pieces will play the positioning action as the mechanism of installation connection component module, and the drive mechanism that is set up respectively below two pieces drives and can carry out vertical slip in first through-hole 3, in this embodiment, drive mechanism includes the lead screw of vertical rotation connection on bottom plate 1, coaxial fixedly connected with turbine on the lead screw, the turbine side cooperates with the worm of vertical rotation connection on bottom plate 1, the worm is driven to rotate by the servo motors, all the servo motors are controlled to be powered off by the controller, the condition that after students set the position where each element module is placed in software is met, the PC 9 transmits the information to the controller through communication, the controller drives the corresponding motor on the bottom plate 1 to rotate and drive the corresponding support block to lift according to the information transmitted by the PC 9 is preset, the first support block 4 and the second support block 5 are arranged at 90 degrees, so that the element modules can be placed transversely or vertically, and the convenience in connection of the element modules is improved;

in this embodiment, the component module includes a housing 6, connection blocks 7 for connecting wires are disposed at two ends of the housing 6, a detection line and a physical line installed in the housing 6 are disposed between the two connection blocks 7, an electrical component, which does not include a current meter and a voltage meter and is common in an electrical experiment, is disposed in the physical line, the detection line includes a first resistor 10 fixedly connected in the housing 6, a value of the first resistor 10 is proportional to a resistance value of an electrical component, in this embodiment, a resistance value of the first resistor 10 is one half of a resistance value of the electrical component, the first resistor 10 is connected to one of the connection blocks 7 through a wire, the other is not connected, and the physical line is preset in a connection relationship that the electrical component is connected to the connection block 7 connected to the first resistor 10 and is not connected to the other connection block 7, so that one end of the first resistor 10 is connected to the other end of the electrical component, preset, in this embodiment, the purpose of providing the detection circuit is to detect whether the connection relationship of each electrical element is correct, that is, the series-parallel connection relationship between each electrical element, a corresponding detection mechanism is provided in the detection circuit, which includes a first coil 11 connected in series to a connection line of a first resistor 10, and further includes a second resistor 12 fixedly connected in parallel to the first resistor 10 in the housing 6, and in this embodiment, the resistance value of the second resistor 12 is much larger than the resistance value of the first resistor 10, the resistance value of the second resistor 12 is ten times that of the first resistor 10, a second coil 13 is connected to the connection line of the second resistor 12, the number of turns of the second coil 13 is preset to be larger than that of the first coil 11, a first magnet 14 slidably connected to the housing 6 is respectively disposed at the center of the first coil 11 and the second coil 13, a pressing plate 15 is respectively slidably connected in two first magnets 14, the side edge of the pressing plate 15 is arranged on a pressure sensor 16 fixedly connected to the shell 6, a first spring is arranged between the pressing plate 15 and the pressure sensor 16, and the first spring is preset, when the shell 6 is placed on the panel 2 and is in fit connection with the support block in an initial state, the first spring is not compressed, a circuit for electrically connecting the two pressure sensors 16 with a controller on the panel 2 is arranged, in the preset embodiment, a conductive rod respectively connected with the two pressure sensors 16 is connected on the lower end surface of the shell 6 in a penetrating way, conductive sheets respectively communicated with the controller wires are respectively connected on the first support block 4 and the second support block 5 in a sliding way, springs are arranged between the conductive sheets and the first support block 4 and the second support block 5, the conductive rod is required to be placed on the panel 2 to touch the conductive sheets and compress and extrude the springs downwards, so that the pressure sensors 16 are electrically connected with the controller, after the two pressure sensors 16 are electrically connected with the controller, when the first coil 11 and the second coil 13 are powered on, a magnetic field opposite to the direction of the magnetic field of the first magnet 14 is generated, so that the two magnets extrude the first spring, so that the pressure plate 15 feeds back the pressure to the pressure sensors 16, the larger the value of the current passing through the coils is, the larger the magnetism of the generated magnetic field is, the larger the data of the pressure sensors 16 is, the current of the first resistor 10 and the second resistor 12 at the reaction part is, after the controller receives the pressure values transmitted by the two pressure sensors 16 in all the electrical elements, the values of the two pressure sensors 16 in each electrical element are fed back to the PC 9, the PC 9 identifies and compares the values fed back by the controller according to the number of the position of the electrical element set in the software, and displays the comparison result, for example, in an experiment, R1, R2 and L1 are provided, wherein R2 and L1 are connected in parallel and then connected in series with R1, in the circuit, after a student designs the positions of three elements in software, a PC 9 controls the corresponding support blocks to rise, in the process, each support block is provided with corresponding different numbers in the PC 9 and a controller, meanwhile, ports on the controller, which are communicated with a pressure sensor 16, are numbered according to the numbers of the support blocks, when the values transmitted by the pressure sensor 16 are read by the controller, the controller renumbers the values input by the ports, changes the numbers represented by the ports into the numbers of the support blocks at the positions and outputs the numbers to the PC 9, after the PC 9 reads data in the form of the numbers and the values, the sizes of the values are compared, and the results are displayed through the elements represented by the numbers, example R1 represents 1, R2 represents 2, L1 represents 3, the controller outputs to the PC data in the form of "1-1, XX" (where "1" represents R1 and "1" represents current and "XX" pressure sensor value), and the PC 9 compares the values in magnitude and compares the values in "current: r1 greater than L1 greater than R2; voltage: the mode that R1 is larger than R2 and is equal to L1' is displayed to students, the students need to judge the connection relation between each component according to the current-voltage relation between each component displayed by the PC 9 so as to judge whether the circuit is correctly connected, and then the entity circuit is connected, so that the purpose that the electric elements are not damaged as long as wires and resistors are connected in the circuit at the beginning can be ensured, and after the problem of the circuit connection is checked according to the numerical relation displayed by the PC 9, the entity circuit is connected again so as to continue the corresponding electrical experiment;

in this embodiment, a switching mechanism is arranged between the detection line and the physical line and is used for switching connection of the two lines, the switching mechanism includes a rotating plate 17 rotatably connected to the top surface of the housing 6, the rotating plate 17 is a quarter fan-shaped plate structure, a torsion spring is sleeved on a rotating shaft of the rotating plate 17, the rotating plate 17 will communicate with the first resistor 10 and the connecting block 7 under the action of the torsion spring without an external force, so that the two connecting blocks 7 on the housing 6 are simultaneously communicated with the first resistor 10, thereby ensuring that the detection circuit is preferentially powered, a matching groove 18 is formed on the lower end surface of the rotating plate 17, a first rotating shaft 19 rotatably connected to the first supporting block 4 and the second supporting block 5 is arranged below the matching groove 18, matching blocks 20 are vertically and slidably connected in the two first rotating shafts 19, and the matching blocks 20 are matched with the matching grooves 18, a second spring is arranged below the matching block 20, the matching block 20 enters the matching groove 18 and tightly clings to the matching groove 18 under the action of the second spring, so that when the first rotating shaft 19 drives the matching block 20 to rotate, the rotating plate 17 is driven to rotate, a mechanism for driving the first rotating shaft 19 to rotate is arranged in the embodiment, a second rotating shaft 21 which is rotatably connected to the panel 2 is vertically and slidably connected in the two first rotating shafts 19, the first rotating shaft 19 can vertically slide along with the first supporting block 4 or the second supporting block 5, a third coil 22 is wound on the second rotating shaft 21, the third coil 22 is matched with a second magnet 23 arranged on the panel 2, the third coil 22 is electrically connected with the controller, a magnetic field opposite to that of the second magnet 23 is generated after the third coil 22 is electrified, so that the second rotating shaft 21 drives the first rotating shaft 19 to rotate, preset, a torsion spring is sleeved on the first rotating shaft 19, and when no external force is applied, the initial position of the first rotating shaft 19 after the action of the torsion spring is the same as the initial position of the rotating plate 17 after the action of the torsion spring, thereby ensuring that the matching block 20 can be well matched with the matching groove 18, the first rotating shaft 19 is fixedly connected with a limiting block 32, the limiting block 32 is matched with the limiting grooves 33 arranged on the first supporting block 4 and the second supporting block 5, so that the rotation angle of the first rotating shaft 19 is limited to 90 degrees, namely, after the first rotating shaft 19 is driven to rotate by 90 degrees, the rotating plate 17 is driven to be separated from the electric connection of the first resistor 10, and then the connecting blocks 7 are communicated with the entity electric element, so that the two connecting blocks 7 at the two ends of the shell 6 are both communicated with the entity electric element, and the function of converting the circuit from the detection circuit to the entity circuit is realized;

in the present invention, the housing 6 is placed on the panel 2 according to the position of the first support block 4 and the second support block 5 after the first support block 4 or the second support block 5 on the panel 2 is lifted, meanwhile, the pressure sensor 16 in the housing 6 needs to be electrically connected with the controller in the panel 2, and meanwhile, the matching block 20 in the housing 6 needs to be matched with the matching block 20 on the panel 2, so that the housing 6 needs to be placed on the two support blocks well during the placing process, which cannot allow the matching block to be in the lifted state, otherwise, the housing 6 is positioned and installed on the panel 2 after the matching block 20 is matched with the matching groove 18, which is obviously not reasonable, therefore, a vertically arranged press rod 30 is fixedly connected to the housing 6, the press rod 30 is matched with a shifting plate 31 hinged on the first support block 4 and the second support block 5, a torsion spring is arranged on a hinged shaft of the shifting plate 31, the shifting plate 31 is matched with the matching block 20 to tightly clamp the matching block 20 under the action of the torsion spring, namely, after the matching block 20 is pressed downwards into the first through hole 3, the matching block 20 is limited by the shifting rod 31, when the shell 6 is arranged on the supporting block, the shell 6 is firstly positioned by the supporting block, and then when the shell 6 is pressed downwards, the pressing rod 30 can extrude the shifting rod 31 to enable the shifting rod 31 to loosen the matching block 20, so that the matching block 20 can accurately enter the matching groove 18, the stability of electric connection between the pressure sensor 16 and the controller is ensured, a locking mechanism for fixing the shell 6 is arranged on the shell 6 and the panel 2 in a matching way, the locking mechanism comprises three first baffle plates 24 which are connected on the panel 2 in a sliding way, springs are arranged between the three first baffle plates 24 and the panel 2, and the part of the upper ends of the first baffle plates 24, which is contacted with the side wall of the shell 6, is arranged in an inclined arc shape, the first baffle plate 24 can be extruded to retract when the shell 6 is pressed downwards, the first baffle plate 24 is matched with a blocking groove 25 formed in the shell 6, after the shell 6 is completely attached to the panel 2, the first baffle plate 24 can enter the blocking groove 25 to block the shell 6, a pressing rod 26 connected to the shell 6 in a sliding mode is arranged in the blocking groove 25 in a sliding mode, a spring for applying force to the pressing rod 26 is arranged between the pressing rod 26 and the shell 6, the pressing rod 26 has a tendency of being far away from the shell 6 under the action of the spring, in addition, when the shell 6 is mounted on the panel 2 downwards, the shell 6 cannot be guaranteed not to shake and to be in friction contact with other components, in the process, if the pressing rod 30 is contacted, the pressing rod is likely to be bent, so that the shell 6 is influenced to continue to move downwards, and a pressing block 27 is connected to the lower end face of the shell 6 in a sliding mode, meanwhile, inclined side walls matched with the pressing block 27 are arranged on the first supporting block 4 and the second supporting block 5, a spring is arranged between the pressing block 27 and the shell 6, the pressing block 27 is close to the side edge of the pressing rod 30 under the action of the spring, and meanwhile, no force is generated on the pressing rod 30, so that the pressing rod 30 can be protected from being contacted with the pressing rod 30, when the shell 6 is pressed downwards, the pressing block 27 slides towards the direction far away from the pressing rod 30 under the action of the inclined side walls of the supporting blocks, the right end of the pressing block 27 is fixedly connected with a second baffle plate 28 matched with the first baffle plate 24, the second baffle plate 28 is contacted with the first baffle plate 24 along with the downward sliding of the pressing block 27, the first baffle plate 24 is extruded to enable the first baffle plate 24 to retract, until the shell 6 is completely attached to the panel 2, the second baffle plate 28 is completely positioned below the first baffle plate 24, at the moment, the first baffle plate 24 is stretched out again under the action of the spring and limits the second baffle plate 28, if the pressing rod 26 is provided with the stay 29, the stay 29 is located on the left side of the second baffle 28 in the initial state and does not contact with the second baffle 28, but the side edge of the stay 29 is an inclined arc surface, after the pressing rod 26 is pressed down, on one hand, the inclined arc surface of the stay 29 will press the first baffle 24 matched with the second baffle 28 to retract and unlock the second baffle 28, and on the other hand, the pressing rod 26 will press the first baffle 24 entering the blocking groove 25 to be ejected out of the blocking groove 25, so as to unlock the shell 6, that is, the shell 6 can be taken up from the panel 2 after the pressing rod 26 is pressed.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. The utility model provides an electricity principle teaching aid based on computer, includes bottom plate (1), its characterized in that, install panel (2) on bottom plate (1), interval arrangement distributes and is provided with a plurality of first through-holes (3) on panel (2), vertical sliding fit has first piece (4) and second piece (5) in first through-hole (3), be 90 contained angles setting between first piece (4) and the second piece (5), first piece (4) and second piece (5) are used for cooperating the connecting element module, the element module includes shell (6), shell (6) both ends are provided with connecting block (7) that are used for connecting the wire, two be provided with detection circuitry and the entity circuit of installing in shell (6) between connecting block (7), be provided with the connection that is used for converting two circuits between detection circuitry and the entity circuit, and the locking mechanism is arranged on the shell (6) and matched with the panel (2) for fixing the component module.

2. The computer-based electrical principle teaching aid as claimed in claim 1, wherein a power module (8) for supplying power to the element module is arranged on the bottom plate (1), the power module (8) and the element module are connected through a lead, a controller is installed in the bottom plate (1), a PC (9) is installed on the bottom plate (1), and the PC (9) and the controller can communicate with each other.

3. The computer-based electrical principle teaching aid as claimed in claim 1, wherein the detection circuit comprises a first resistor (10) fixedly connected in the housing (6), the value of the first resistor (10) is in direct proportion to the resistance value of the electrical component, the first resistor (10) is connected with one of the connecting blocks (7) through a wire, the other one of the first resistor and the connecting block is not connected, the first resistor (10) is connected in series with a first coil (11) on the connecting circuit, the computer-based electrical principle teaching aid further comprises a second resistor (12) fixedly connected in parallel with the first resistor (10) in the housing (6), the resistance value of the second resistor (12) is far greater than that of the first resistor (10), and the second resistor (12) is connected with a second coil (13) on the connecting circuit.

4. A computer-based electrical principle teaching aid as claimed in claim 3, wherein the first coil (11) and the second coil (13) are used for detecting the current flowing through the first resistor (10) and the second resistor (12), respectively, the number of turns of the second coil (13) is larger than that of the first coil (11), the first magnet (14) slidably connected to the housing (6) is arranged at the center of each of the first coil (11) and the second coil (13), the two first magnets (14) are respectively slidably connected with the pressure plate (15), the side edge of the pressure plate (15) is arranged on the pressure sensor (16) fixedly connected to the housing (6), and a first spring is arranged between the pressure plate (15) and the pressure sensor (16).

5. The computer-based electrical principle teaching aid as claimed in claim 1, wherein the conversion mechanism comprises a rotating plate (17) rotatably connected to a top plate of the housing (6), the rotating plate (17) is of a quarter fan-shaped plate structure, a torsion spring is sleeved on a rotating shaft of the rotating plate (17), a matching groove (18) is formed in the lower end face of the rotating plate (17), a first rotating shaft (19) rotatably connected to the first supporting block (4) and the second supporting block (5) is arranged below the matching groove (18), matching blocks (20) are respectively and vertically slidably connected in the first rotating shafts (19), the matching blocks (20) are matched with the matching grooves (18), a second spring is arranged below the matching blocks (20), and a second rotating shaft (21) rotatably connected to the panel (2) is vertically slidably connected in the two rotating shafts, and a third coil (22) is wound on the second rotating shaft (21), and the third coil (22) is matched with a second magnet (23) arranged on the panel (2).

6. A computer-based teaching aid of the electrical principles as claimed in claim 5, wherein the locking mechanism comprises three first blocking plates (24) slidably connected to the panel (2), three springs are arranged between the first blocking plates (24) and the panel (2), the first blocking plates (24) are matched with blocking grooves (25) formed in the housing (6), pressing rods (30) and (26) slidably connected to the housing (6) are slidably matched with the blocking grooves (25), and springs for applying force to the pressing rods (30) and (26) are arranged between the pressing rods (30) and (26) and the housing (6).

7. The computer-based electrical principle teaching aid as claimed in claim 1, wherein a first supporting block (4) and a second supporting block (5) are slidably connected to the lower end of the housing (6) to form a pressing block (27) matched with the inclined side wall, a spring for applying force to the pressing block (27) is arranged between the pressing block (27) and the housing (6), a second baffle (28) matched with the first baffle (24) is fixedly connected to the right end of the pressing block (27), and the second baffle is matched with a supporting rod (29) fixedly connected to the pressing rods (30) and (26).

8. The computer-based electrical principle teaching aid as claimed in claim 1, wherein a pressure lever (30) fixedly connected to the bottom surface of the housing (6) is disposed at a side edge of the pressure plate (15), the pressure lever (30) is matched with a shifting plate (31) hinged to the first supporting block (4) and the second supporting block (5), a torsion spring is disposed on a hinged shaft of the shifting plate (31), and the shifting plate (31) is matched with the matching block (20) to clamp the matching block (20) under the action of the torsion spring.

9. A computer-based teaching aid of electrical principles as claimed in claim 8, wherein the pressure piece (27) abuts against the pressure rod (30) at spring-loaded extreme positions.

10. The computer-based electricity principle teaching aid of claim 5, characterized in that, the cover is equipped with the torsional spring on first pivot (19), fixedly connected with stopper (32) on first pivot (19), stopper (32) and the spacing groove (33) cooperation of seting up on first piece (4) and second piece (5), satisfy and restrict first pivot (19) turned angle and be 90.

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