Electromagnetic alternation demonstration device

Abstract

The utility model relates to the technical field of electromagnetic induction, and particularly discloses an electromagnetic alternation demonstration device, which comprises a bearing mechanism and a demonstration mechanism, the bearing mechanism comprises a power bank, a base and a bulb mounting seat, the upper surface of the base is provided with a coil mounting seat and two lamp holders, and the upper surface of the coil mounting seat is provided with an induction coil. The display mechanism comprises a first LED energy-saving lamp, a second LED energy-saving lamp and a small bulb. The first LED energy-saving lamp and the second LED energy-saving lamp are installed on two lamp holders respectively. By arranging the power bank, the base and the bulb mounting seat, the device is simple to manufacture, convenient to connect, safe and convenient to operate and high in experiment visibility, and can arouse the learning interest of students.

Description

Technical Field

[0001] The utility model belongs to the technical field of electromagnetic induction, and in particular relates to an electromagnetic mutual generation demonstration device. Background Art

[0002] Electricity and magnetism are inseparable. Oersted discovered that there is a magnetic field around a conductor carrying current, which is called electromagnetism. Faraday discovered that changes in magnetic flux through a closed circuit will generate induced current, which is the principle of magnetoelectricity.

[0003] According to the patent publication number CN 211427667 U, an electromagnetic induction experiment display device is proposed, which includes a fixed component and a mobile component; wherein the fixed component includes an insulating bottom plate, a transparent insulating shell covered and fixed on the bottom plate, and a plurality of magnets; the plurality of magnets are evenly distributed and fixed on the bottom plate in an arrangement manner with equal intervals to form a magnetic field; the mobile component includes a multi-turn coil arranged in a closed insulating box body and an LED bulb partially exposed outside the box body and connected in series with the multi-turn coil; the electromagnetic induction experiment display device is designed according to the requirements of science and technology museum exhibits and is suitable for exhibits in science and technology museums and other popular science exhibition halls. It aims to display the physical phenomenon of electromagnetic induction. In terms of structural design, it adopts a fixed component fixed on the exhibition stand and a mobile component that is convenient for the public to hold and operate, so that the public can directly participate in the experimental process, deepen their understanding of the physical phenomenon of electromagnetic induction through operation and observation, and popularize the basic knowledge of electromagnetism;

[0004] The display device has a high production cost, is inconvenient to display, and has poor visibility when displayed in a classroom.

[0005] To this end, those skilled in the art have proposed an electromagnetic interaction demonstration device to solve the problems raised by the background technology.

[0006] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the utility model, therefore, it may include prior art that is not known to ordinary technicians in the field. Utility Model Content

[0007] The purpose of the utility model is to provide an electromagnetic mutual generation demonstration device to solve the problems raised in the above background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] An electromagnetic mutual generation demonstration device, comprising:

[0010] A carrying mechanism, the carrying mechanism comprising a power bank, a base and a bulb mounting seat, the upper surface of the base is provided with a coil mounting seat and two lamp holders, and the upper surface of the coil mounting seat is provided with an induction coil;

[0011] The display mechanism comprises a first LED energy-saving lamp, a second LED energy-saving lamp and a small light bulb. The first LED energy-saving lamp and the second LED energy-saving lamp are respectively mounted on two lamp holders, and the small light bulb is mounted on a light bulb mounting holder.

[0012] Preferably, the power bank includes a power supply interface and a data cable, and one end of the data cable is plugged into the power bank through the power supply interface.

[0013] Preferably, a circuit input interface is provided on one surface of the coil mounting seat, an end of the data cable away from the power bank is plugged into the circuit input interface, and the induction coil is electrically connected to the power bank via the data cable.

[0014] Preferably, a positive electrode interface and a negative electrode interface are provided on the upper surface of the bulb mounting base, and the positive electrode interface and the negative electrode interface are respectively provided on both sides of the small bulb.

[0015] Preferably, the positive electrode interface and the negative electrode interface both include a stud and a locking knob fixedly arranged on the bulb mounting base, the locking knob is threadedly engaged with the stud, and the stud on the positive electrode interface is provided with a closed loop, one end of the closed loop is wound around the stud on the positive electrode interface, and the other end of the closed loop is wound around the stud on the negative electrode interface.

[0016] Preferably, the induction coil is located between two lamp holders.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] (1) The utility model is provided with a power bank, a base and a bulb mounting seat. When it is necessary to demonstrate the electromagnetism phenomenon, the power bank can be connected to a data cable, and then the data cable can be connected to the circuit input interface. At this time, the coil current generates a magnetic field through the induction coil. The magnetic field excites the semiconductors in the first LED energy-saving lamp and the second LED energy-saving lamp to generate holes. The electrons and holes in the semiconductors collide violently and recombine to generate photons, thereby making the first LED energy-saving lamp and the second LED energy-saving lamp emit light. When it is necessary to demonstrate the magnetoelectric phenomenon, a closed loop is connected between the positive electrode interface and the negative electrode interface, and then the closed loop is put on the induction coil. At this time, when the magnetic flux passing through the closed loop changes, an induced current is generated in the closed loop, thereby making the small bulb emit light. The device is simple to manufacture, convenient to connect, safe and convenient to operate, and has high experimental visibility.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a front view of the utility model;

[0021] Figure 2 The utility model is a schematic diagram of the specific structure of the small light bulb.

[0022] In the figure: 1. Power bank; 2. Data cable; 3. First LED energy-saving lamp; 4. Induction coil; 5. Circuit input interface; 6. Second LED energy-saving lamp; 7. Small light bulb; 8. Base; 9. Coil mounting seat; 10. Lamp holder; 11. Light bulb mounting seat; 12. Positive electrode interface; 13. Negative electrode interface; 14. Closed loop. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1:

[0025] See also Figure 1-Figure 2 As shown, an electromagnetic mutual generation demonstration device comprises:

[0026] The carrying mechanism includes a power bank 1, a base 8 and a bulb mounting seat 11. A coil mounting seat 9 and two lamp holders 10 are arranged on the upper surface of the base 8. An induction coil 4 is installed on the upper surface of the coil mounting seat 9.

[0027] The display mechanism comprises a first LED energy-saving lamp 3 , a second LED energy-saving lamp 6 and a small light bulb 7 . The first LED energy-saving lamp 3 and the second LED energy-saving lamp 6 are respectively mounted on two lamp holders 10 , and the small light bulb 7 is mounted on a light bulb mounting holder 11 .

[0028] Specifically, the power bank 1 includes a power supply interface and a data cable 2 , and one end of the data cable 2 is plugged into the power bank 1 through the power supply interface.

[0029] Specifically, a circuit input interface 5 is provided on one surface of the coil mounting seat 9 , an end of the data line 2 away from the power bank 1 is plugged into the circuit input interface 5 , and the induction coil 4 is electrically connected to the power bank 1 through the data line 2 .

[0030] Specifically, a positive electrode interface 12 and a negative electrode interface 13 are provided on the upper surface of the bulb mounting base 11 , and the positive electrode interface 12 and the negative electrode interface 13 are respectively provided on both sides of the small bulb 7 .

[0031] Specifically, the positive electrode interface 12 and the negative electrode interface 13 both include a stud and a locking knob fixedly arranged on the bulb mounting base 11, the locking knob is threadedly matched with the stud, and the stud on the positive electrode interface 12 is provided with a closed loop 14, one end of the closed loop 14 is wound around the stud on the positive electrode interface 12, and the other end of the closed loop 14 is wound around the stud on the negative electrode interface 13.

[0032] Specifically, the induction coil 4 is located between two lamp holders 10 .

[0033] As can be seen from the above, the device is provided with a power bank 1, a base 8 and a bulb mounting seat 11. When it is necessary to demonstrate the electromagnetism phenomenon, the power bank 1 can be connected to the data line 2, and then the data line 2 is connected to the circuit input interface 5. At this time, the coil current generates a magnetic field through the induction coil 4, and the magnetic field excites the semiconductors in the first LED energy-saving lamp 3 and the second LED energy-saving lamp 6 to generate holes. The electrons and holes in the semiconductors collide violently and recombine to generate photons, so that the first LED energy-saving lamp 3 and the second LED energy-saving lamp 6 emit light. When it is necessary to demonstrate the magnetoelectric phenomenon, a closed loop 14 is connected between the positive electrode interface 12 and the negative electrode interface 13, and then the closed loop 14 is put on the induction coil 4. At this time, when the magnetic flux passing through the closed loop 14 changes, an induced current is generated in the closed loop 14, thereby making the small bulb 7 emit light. The device is simple to make, easy to connect, safe and convenient to operate, and has high experimental visibility.

[0034] The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0035] In the description of the present utility model, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. The meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0039] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic interaction demonstration device, characterized in that: include: A bearing mechanism, the bearing mechanism comprising a power bank (1), a base (8) and a bulb mounting seat (11), the upper surface of the base (8) being provided with a coil mounting seat (9) and two bulb holders (10), the upper surface of the coil mounting seat (9) being provided with an induction coil (4); A display mechanism, the display mechanism comprising a first LED energy-saving lamp (3), a second LED energy-saving lamp (6) and a small light bulb (7), the first LED energy-saving lamp (3) and the second LED energy-saving lamp (6) being respectively mounted on two lamp holders (10), the small light bulb (7) being mounted on a light bulb mounting seat (11), the upper surface of the light bulb mounting seat (11) being provided with a positive electrode interface (12) and a negative electrode interface (13), the positive electrode interface (12) and the negative electrode interface (13) being respectively arranged on both sides of the small light bulb (7), the positive electrode interface (12) and the negative electrode interface (13) both comprising a stud fixedly arranged on the light bulb mounting seat (11) and a locking knob, the locking knob being threadedly matched with the stud, the stud on the positive electrode interface (12) being provided with a closed loop (14), one end of the closed loop (14) being wound around the stud on the positive electrode interface (12), and the other end of the closed loop (14) being wound around the stud on the negative electrode interface (13).

2. An electromagnetic mutual generation demonstration device according to claim 1, characterized in that: The power bank (1) comprises a power supply interface and a data cable (2), and one end of the data cable (2) is plugged into the power bank (1) via the power supply interface.

3. An electromagnetic mutual generation demonstration device according to claim 2, characterized in that: A circuit input interface (5) is provided on one surface of the coil mounting seat (9), and an end of the data cable (2) away from the power bank (1) is plugged into the circuit input interface (5), and the induction coil (4) is electrically connected to the power bank (1) via the data cable (2).

4. The electromagnetic mutual generation demonstration device according to claim 1, characterized in that: The induction coil (4) is located between two lamp holders (10).

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