Device for detecting current direction and magnetic pole of direct-current generator

Abstract

The utility model relates to the technical field of physics teaching, and specifically discloses a direct current generator current direction and magnetic pole detection device comprising a generator body and a detector body, the generator body comprises a binding post and a magnet which are arranged on a pedestal; the detector body comprises a controller U1, a current direction detection module, a magnetic pole detection module, a dot matrix module, an indication module and a power supply module; the input end of the current direction detection module is connected with the binding post; the input end of the magnetic pole detection module is arranged on one side close to the magnet; the controller U1 is connected with the current direction detection module, the magnetic pole detection module, the dot matrix module and the indication module. The output of the power supply module is connected with the power input ends of the controller U1, the magnetic pole detection module and the dot matrix module. According to the utility model, the generator body is combined with the detector body, so that the direction and the magnetic pole of current generated by the generator can be detected, visual display can be carried out through the dot matrix module and the indication module, and observation of students is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of physics teaching, in particular to a device for detecting current direction and magnetic poles of a direct current generator. Background Art

[0002] Physics is an important course, which includes many common physical elements in life, such as sound, light, heat, force, electricity, etc. At the same time, electricity is a more difficult course in physics, which needs to be explained with models. The model of DC generator is a more common teaching model.

[0003] Existing DC generator models can usually only demonstrate the principle of current generation, but cannot clearly show the direction of current and the direction of magnetic poles, making it difficult for students to distinguish the direction of current and the magnetic poles of the magnet. Utility Model Content

[0004] In order to clearly display the direction of current and the direction of magnetic poles, the utility model provides a current direction and magnetic pole detection device for a DC generator, which has the advantages of intuitively displaying the current direction and magnetic poles and facilitating students' observation.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a current direction and magnetic pole detection device of a DC generator, comprising a generator body and a detector body, the generator body comprising a terminal and a magnet arranged on a base, the detector body comprising a controller, a current direction detection module, a magnetic pole detection module, a dot matrix module, an indication module and a power supply module;

[0006] The input end of the current direction detection module is connected to the terminal;

[0007] The input end of the magnetic pole detection module is arranged on a side close to the magnet;

[0008] The controller U1 is electrically connected to the output end of the current direction detection module, the output end of the magnetic pole detection module, the input end of the dot matrix module and the input end of the indication module respectively;

[0009] The output end of the power supply module is electrically connected to the power input end of the controller U1, the power input end of the magnetic pole detection module and the power input end of the dot matrix module respectively.

[0010] Furthermore, the current direction detection module is a DC voltmeter.

[0011] Furthermore, there are two groups of terminals, and the red electrodes of the DC voltmeter are respectively connected to one group of terminals and the D2 pin of the controller U1; the black electrodes of the DC voltmeter are respectively connected to the other group of terminals and the D3 pin of the controller U1.

[0012] Furthermore, the N-pole output terminal and the S-pole output terminal of the magnetic pole detection module are respectively connected to the D4 pin and the D5 pin of the controller U1.

[0013] Furthermore, the CLK pin of the dot matrix module is connected to the A2 pin of the controller U1, the CS pin of the dot matrix module is connected to the A3 pin of the controller U1, and the DIN pin of the dot matrix module is connected to the A4 pin of the controller U1.

[0014] Further, the indication module includes a resistor R2, a light emitting diode L2, a resistor R3, a light emitting diode L3, a resistor R4, a light emitting diode L4, a resistor R5 and a light emitting diode L5, wherein:

[0015] The D9 pin of the controller U1 is connected to the input end of the light-emitting diode L2 through the resistor R2, the D8 pin of the controller U1 is connected to the input end of the light-emitting diode L3 through the resistor R3, the D7 pin of the controller U1 is connected to the input end of the light-emitting diode L4 through the resistor R4, the D6 pin of the controller U1 is connected to the input end of the light-emitting diode L5 through the resistor R5, and the output ends of the light-emitting diodes L2, L3, L4 and L5 are all connected to the ground terminal GND.

[0016] Furthermore, the power supply module includes a battery BAT, a switch SW1, a resistor R1 and a light emitting diode L1, wherein:

[0017] The positive electrode of the battery BAT is connected to one end of the switch SW1, and the negative electrode is connected to the ground terminal GND;

[0018] The other end of the switch SW1 is respectively connected to the +5V pin of the controller, the +5V pin of the magnetic pole detection module, the +5V pin of the dot matrix module and the resistor R1;

[0019] The other end of the resistor R1 is connected to the input end of the light emitting diode L1 , and the output end of the light emitting diode L1 is connected to the ground end GND.

[0020] Furthermore, the colors of the light emitting diode L1, the light emitting diode L2, the light emitting diode L3, the light emitting diode L4, and the light emitting diode L5 are different from each other.

[0021] Furthermore, the detector body also includes a box body, and the controller U1, the current direction detection module, the indication module and the power supply module are all arranged in the box body.

[0022] Furthermore, the lattice module is arranged on a base of the generator body.

[0023] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0024] The utility model combines a generator body with a detector body, which can not only detect the direction of the current generated by the generator and the direction of the magnetic pole, but also can be displayed intuitively through an indication module and a dot matrix module, which is convenient for students to observe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the utility model;

[0026] Figure 2 It is a flowchart of the utility model;

[0027] Figure 3 It is the circuit principle diagram of the utility model;

[0028] Figure 4 This is a circuit schematic diagram of the power supply module of the utility model;

[0029] Among them: 1-generator body, 101-terminal, 102-magnet, 2-detector body, 201-current direction detection module, 202-magnetic pole detection module, 203-lattice module, 204-indication module, 205-power supply module. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] like Figures 1 to 4 As shown, the utility model provides a current direction and magnetic pole detection device for a DC generator, comprising a generator body 1 and a detector body 2, the generator body 1 comprising a terminal 101 and a magnet 102 arranged on a base, the detector body 2 comprising a controller U1, a current direction detection module 201, a magnetic pole detection module 202, a dot matrix module 203, an indication module 204 and a power supply module 205;

[0032] The input end of the current direction detection module 201 is connected to the terminal 101;

[0033] The input end of the magnetic pole detection module 202 is arranged on a side close to the magnet 102;

[0034] The controller U1 is electrically connected to the output end of the current direction detection module 201, the output end of the magnetic pole detection module 202, the input end of the dot matrix module 203 and the input end of the indication module 204 respectively;

[0035] The output end of the power supply module 205 is electrically connected to the power input end of the controller U1 , the power input end of the magnetic pole detection module 202 , and the power input end of the dot matrix module 203 , respectively.

[0036] The embodiment of the present application combines the generator body 1 with the detector body 2, which can not only detect the direction of the current generated by the generator and the direction of the magnetic pole, but also can be intuitively displayed through the dot matrix module 203 and the indication module 204, so as to facilitate students' observation.

[0037] The embodiment of the present application does not specifically limit the model of the controller U1, which may be an aurdnio microcontroller, an STM microcontroller, or a 51 series microcontroller.

[0038] like Figure 1 As shown, specifically, the current direction detection module 201 in the embodiment of the present application is a DC voltmeter, which can determine the direction of the current by the positive and negative values ​​of the DC power output by the generator body 1, with low cost and strong practicality.

[0039] like Figures 1 to 3 As shown, specifically, there are two groups of terminals 101 in the embodiment of the present application, and the red electrodes of the DC voltmeter are respectively connected to one group of terminals 101 and the D2 pin of the controller U1; the black electrodes of the DC voltmeter are respectively connected to the other group of terminals 101 and the D3 pin of the controller U1. When the controller U1 receives the corresponding signal, it can be output to the indication module 204 for corresponding indication after internal calculation.

[0040] When a demonstration is required, the DC voltmeter measures the voltage generated by the generator body 1 through two sets of terminals and can display it on the DC voltmeter, so that the user can understand the voltage and current direction generated by the generator through the voltage value and pointer direction displayed on the voltmeter.

[0041] like Figure 3 As shown, specifically, the N-pole output terminal and the S-pole output terminal of the magnetic pole detection module 202 in the embodiment of the present application are respectively connected to the D4 pin and the D5 pin of the controller U1.

[0042] The embodiment of the present application does not specifically limit the model of the magnetic pole detection module 202. For example, an integrated dual-pole magnetic sensor AHM025 can be selected to identify two magnetic field magnetisms, the S pole and the N pole.

[0043] like Figure 3As shown, specifically, the CLK pin of the dot matrix module 203 in the embodiment of the present application is connected to the A2 pin of the controller U1, the CS pin of the dot matrix module 203 is connected to the A3 pin of the controller U1, and the DIN pin of the dot matrix module 203 is connected to the A4 pin of the controller U1. The display mode of the dot matrix module 203 can be set by the controller U1, for example, to display the direction of the current of the generator body 1, the direction of the magnetic pole, or display them simultaneously.

[0044] The embodiment of the present application does not specifically limit the model of the dot matrix module 203. For example, a MAX7219 module can be selected and connected to the interface of the controller U1. The user can easily modify its internal parameters to achieve multi-digit LED display.

[0045] like Figure 3 As shown, specifically, the indication module 204 in the embodiment of the present application includes a resistor R2, a light emitting diode L2, a resistor R3, a light emitting diode L3, a resistor R4, a light emitting diode L4, a resistor R5 and a light emitting diode L5, wherein:

[0046] The D9 pin of the controller U1 is connected to the input end of the light-emitting diode L2 through the resistor R2, the D8 pin of the controller U1 is connected to the input end of the light-emitting diode L3 through the resistor R3, the D7 pin of the controller U1 is connected to the input end of the light-emitting diode L4 through the resistor R4, the D6 pin of the controller U1 is connected to the input end of the light-emitting diode L5 through the resistor R5, and the output ends of the light-emitting diodes L2, L3, L4 and L5 are all connected to the ground terminal GND.

[0047] like Figure 4 As shown, specifically, the power supply module 205 in the embodiment of the present application includes a battery BAT, a switch SW1, a resistor R1 and a light emitting diode L1, wherein:

[0048] The positive electrode of the battery BAT is connected to one end of the switch SW1, and the negative electrode is connected to the ground terminal GND;

[0049] The other end of the switch SW1 is respectively connected to the +5V pin of the controller U1, the +5V pin of the magnetic pole detection module 202, the +5V pin of the dot matrix module 203 and the resistor R1;

[0050] The other end of the resistor R1 is connected to the input end of the light emitting diode L1 , and the output end of the light emitting diode L1 is connected to the ground end GND.

[0051] Specifically, the colors of the LEDs L1, L2, L3, L4, and L5 in the embodiment of the present application are different from each other. For example, the LED L1 is a power indicator light, which can be red; the LEDs L2 and L3 are current direction indicator lights, which can be orange and green; the LEDs L4 and L5 are magnetic pole indicator lights, which can be blue and purple.

[0052] like Figure 1 As shown, specifically, in the embodiment of the present application, the detector body 2 also includes a box body, and the controller U1, the current direction detection module 201, the indication module 204 and the power supply module 205 are all arranged in the box body, so that the detector body 2 is easy to carry and has a wider range of application scenarios.

[0053] like Figure 1 As shown, specifically, the dot matrix module 203 in the embodiment of the present application is arranged on the base of the generator body 1 to facilitate external debugging and display.

[0054] It can be seen that the DC generator current direction and magnetic pole detection device of the embodiment of the present application combines the generator body 1 with the detector body 2, which can not only detect the direction of the current generated by the generator and the direction of the magnetic pole, but also can be intuitively displayed through the indication module and the dot matrix module, which is convenient for students to observe.

[0055] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the attached claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0056] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above is only the preferred implementation of the utility model and is not used to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made to it without departing from the principle and spirit of the utility model shall be included in the protection scope of the utility model.

Claims

1. A device for detecting current direction and magnetic pole of a DC generator, characterized in that: The invention comprises a generator body (1) and a detector body (2), wherein the generator body (1) comprises a terminal (101) and a magnet (102) arranged on a base, and the detector body (2) comprises a controller U1, a current direction detection module (201), a magnetic pole detection module (202), a dot matrix module (203), an indication module (204) and a power supply module (205); The input end of the current direction detection module (201) is connected to the terminal (101); The input end of the magnetic pole detection module (202) is arranged on a side close to the magnet (102); The controller U1 is electrically connected to the output end of the current direction detection module (201), the output end of the magnetic pole detection module (202), the input end of the dot matrix module (203), and the input end of the indication module (204) respectively; The output end of the power supply module (205) is electrically connected to the power input end of the controller U1, the power input end of the magnetic pole detection module (202), and the power input end of the dot matrix module (203) respectively.

2. The device for detecting the current direction and magnetic pole of a DC generator according to claim 1, characterized in that: The current direction detection module (201) is a DC voltmeter.

3. The device for detecting the current direction and magnetic pole of a DC generator according to claim 2, characterized in that: There are two groups of the binding posts (101), and the red electrodes of the DC voltmeter are respectively connected to one group of the binding posts (101) and the D2 pin of the controller U1; the black electrodes of the DC voltmeter are respectively connected to the other group of the binding posts (101) and the D3 pin of the controller U1.

4. The device for detecting the current direction and magnetic pole of a DC generator according to claim 1, characterized in that: The N-pole output terminal and the S-pole output terminal of the magnetic pole detection module (202) are respectively connected to the D4 pin and the D5 pin of the controller U1.

5. The device for detecting the current direction and magnetic pole of a DC generator according to claim 1, characterized in that: The CLK pin of the dot matrix module (203) is connected to the A2 pin of the controller U1, the CS pin of the dot matrix module (203) is connected to the A3 pin of the controller U1, and the DIN pin of the dot matrix module (203) is connected to the A4 pin of the controller U1.

6. The device for detecting the current direction and magnetic pole of a DC generator according to claim 1, characterized in that: The indication module (204) comprises a resistor R2, a light emitting diode L2, a resistor R3, a light emitting diode L3, a resistor R4, a light emitting diode L4, a resistor R5 and a light emitting diode L5, wherein: The D9 pin of the controller U1 is connected to the input end of the light-emitting diode L2 through the resistor R2, the D8 pin of the controller U1 is connected to the input end of the light-emitting diode L3 through the resistor R3, the D7 pin of the controller U1 is connected to the input end of the light-emitting diode L4 through the resistor R4, the D6 pin of the controller U1 is connected to the input end of the light-emitting diode L5 through the resistor R5, and the output ends of the light-emitting diodes L2, L3, L4 and L5 are all connected to the ground terminal GND.

7. The device for detecting the current direction and magnetic pole of a DC generator according to claim 6, characterized in that: The power supply module (205) comprises a battery BAT, a switch SW1, a resistor R1 and a light emitting diode L1, wherein: The positive electrode of the battery BAT is connected to one end of the switch SW1, and the negative electrode is connected to the ground terminal GND; The other end of the switch SW1 is respectively connected to the +5V pin of the controller U1, the +5V pin of the magnetic pole detection module (202), the +5V pin of the dot matrix module (203) and the resistor R1; The other end of the resistor R1 is connected to the input end of the light emitting diode L1 , and the output end of the light emitting diode L1 is connected to the ground end GND.

8. The device for detecting the current direction and magnetic pole of a DC generator according to claim 7, characterized in that: The colors of the light emitting diode L1, the light emitting diode L2, the light emitting diode L3, the light emitting diode L4 and the light emitting diode L5 are different from each other.

9. The device for detecting current direction and magnetic pole of a DC generator according to claim 1, characterized in that: The detector body (2) further comprises a box body, in which the controller U1, the current direction detection module (201), the indication module (204) and the power supply module (205) are all arranged.

10. The device for detecting current direction and magnetic pole of a DC generator according to claim 1, characterized in that: The lattice module (203) is arranged on the base of the generator body (1).

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