Electrified coil magnetic field effect demonstration device

Abstract

The utility model discloses an electrified coil magnetic field effect demonstration device which comprises a wire duct, a cross beam, an upper buckle, a lower buckle, a footstand, a connecting plate, a threading hole, a binding post clamping groove, a binding post and a coil. Compared with the prior art, the device disclosed by the utility model is lower in overall cost and simpler and more convenient in production process, and achieves the effects of small size, light weight, convenience in carrying and simplicity in operation on the premise of ensuring the experiment effect. After the device is electrified, the magnetic needle base and the magnetic needle can be arranged outside and inside the connecting plate and can move freely, so that magnetic effect differences of different positions of the electrified coil can be observed conveniently, and teaching and learning are facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to experimental teaching aid technical field, concretely is a power coil magnetic field effect demonstration device. BACKGROUND

[0002] Electromagnetic induction is a very important knowledge point in electromagnetics, and the magnetic field effect around the power coil is an electrical knowledge closely related to life and widely used, such as electromagnet, relay, motor, transformer and some inductance components.

[0003] In the existing teaching activities, teachers often use current magnetic field demonstrator to demonstrate the magnetic field effect around the power conductor, such as straight wire type, circular coil type, solenoid type, and even a product integrating the three. The solenoid type can be equivalent to multiple circular coil type and straight wire type, and is a high comprehensive scheme, which is frequently used in teaching activities.

[0004] The existing solenoid type current magnetic field demonstrator is often based on a platform type base, and the coil is embedded or directly wound on the base. The volume of the equipment is often not too small. Since the effective part of the experiment is the coil, the base is used to support the coil or place the compass so that the compass can be located at the center position of the coil. However, the base has a large area, and the amount of material used is also large, which accounts for a large proportion of the cost of the entire solenoid type current magnetic field demonstrator. There is still a lot of space for optimization of production cost under the premise of ensuring the experimental effect when producing a solenoid type current magnetic field demonstrator. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a power coil magnetic field effect demonstration device to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: including wire slot, crossbeam, upper buckle, lower buckle, foot base, connecting plate, threading hole, terminal post clamping groove, terminal post, coil, the wire slot is circular, and the central recess is opened, and a plurality of wire slots are vertically and parallelly arranged, and the adjacent two wire slots are connected by the crossbeam; the upper buckle is installed on the left upper side of the front side of the front side crossbeam; the lower buckle is installed on the right lower side of the front side of the front side crossbeam; the foot base is equipped with the connecting plate and is installed on the left side of the left side wire slot and the right side of the right side wire slot, and the connecting plate front side lower side is equipped with the threading hole; the front side foot base is equipped with the terminal post clamping groove, and the terminal post clamping groove is equipped with the terminal post; the left end of the coil is installed on the left terminal post through the left side threading hole, and then a plurality of turns are wound in the recess of all wire slots from left to right, and are fixed by the upper buckle and the lower buckle, and the other end is installed on the right terminal post through the right side threading hole.

[0007] As a preferred technical scheme of the utility model, the wire slot, the crossbeam, the upper buckle, the lower buckle, the foot base and the connecting plate are integrally formed.

[0008] As a preferred technical scheme of the utility model, the connecting post clamping groove outer wall is equipped with a notch, and the coil is clamped into the connecting post clamping groove from the notch and is fixed by the connecting post.

[0009] Compared with the prior art, the utility model has the advantages of lower overall cost, simpler production process, small size, light weight, convenient carrying, simple operation and the like under the premise of ensuring experimental effect. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 is a three-dimensional schematic view of the utility model Figure 1 ;

[0011] Figure 2 is a three-dimensional schematic view of the utility model Figure 2 ;

[0012] Figure 3 is a three-dimensional schematic view of the utility model Figure 1 ;

[0013] Figure 4 is a three-dimensional schematic view of the utility model Figure 2 ;

[0014] In the drawing: wire slot 1, crossbeam 2, upper buckle 3, lower buckle 4, foot base 5, connecting plate 6, wire hole 7, connecting post clamping groove 8, connecting post 9, coil 10 DETAILED DESCRIPTION

[0015] Example 1

[0016] As Figures 1 to 4The utility model discloses a power-on coil magnetic field effect demonstration device, including wire slot 1, crossbeam 2, upper buckle 3, lower buckle 4, foot stand 5, connecting plate 6, threading hole 7, terminal post clamping groove 8, terminal post 9, coil 10, wire slot 1 is circular ring, and the recess is opened in the center, and a plurality of wire slot 1 is vertically, mutually parallel arrangement, and is equipped with crossbeam 2 connection between the adjacent two wire slot 1, upper buckle 3 is installed in the left upper side of front side crossbeam 2 front side, lower buckle 4 is installed in the right lower side of front side crossbeam 2 front side, foot stand 5 is equipped with connecting plate 6 and is installed in the left side of the leftmost wire slot 1 and the right side of the rightmost wire slot 1, and the left side of the leftmost wire slot 1 and the right side of the rightmost wire slot 1 are equipped with connecting plate 6 front side below threading hole 7, the front side foot stand 5 is equipped with terminal post clamping groove 8, and terminal post clamping groove 8 is equipped with terminal post 9, coil 10 left end passes through left side threading hole 7 and is installed on left side terminal post 9, then from left to right in succession in the recess of all wire slot 1 is wound several turns, and is fixed by upper buckle 3, lower buckle 4 spacing, and the other end passes through right side threading hole 7 and is installed on right side terminal post 9.

[0017] The utility model works as follows: when using, the power supply two ends are respectively on two terminal posts 9, the coil 10 wound in the wire slot 1 is electrified, the compass can be placed outside the coil 10, or one is placed inside the coil 10, and the other is placed outside the electrified coil, the inside and outside magnetic field directions of the coil can be observed directly, the compass can be moved randomly when observing, the magnetic effect difference of the electrified coil different positions is convenient for observing, and the use is simple and convenient, and teaching is more intuitive.

[0018] Although the specific embodiments of the utility model have been described in detail above, the utility model is not limited to the above-mentioned embodiments, within the knowledge range possessed by the ordinary skill in the art, various changes can be made without departing from the purpose of the utility model, and the modification or deformation without creative labor is still within the protection scope of the utility model.

Claims

1. A device for demonstrating the magnetic field effect of a current-carrying coil, characterized in that: The system includes a wire trough (1), a crossbeam (2), an upper buckle (3), a lower buckle (4), a foot (5), a connecting plate (6), a wire hole (7), a terminal slot (8), a terminal (9), and a coil (10). The wire trough (1) is annular with a groove in the center. Several wire troughs (1) are arranged vertically and parallel to each other. A crossbeam (2) connects two adjacent wire troughs (1). The upper buckle (3) is installed on the upper left side of the front side of the front crossbeam (2). The lower buckle (4) is installed on the lower right side of the front side of the front crossbeam (2). The foot (5) is fitted with a connecting plate (6) and installed on the front side of the crossbeam (2). On the left side of the leftmost wire groove (1) and the right side of the rightmost wire groove (1), a wire hole (7) is provided on the lower front side of the connecting plate (6); a terminal slot (8) is provided on the foot (5) located on the front side, and a terminal (9) is installed in the terminal slot (8); the coil (10) is an enameled wire, the left end of which passes through the left wire hole (7) and is installed on the left terminal (9), and then is wound several times in the grooves of all wire grooves (1) from left to right, and is fixed by the upper buckle (3) and the lower buckle (4), and the other end passes through the right wire hole (7) and is installed on the right side terminal (9).

2. The device for demonstrating the magnetic field effect of a current-carrying coil according to claim 1, characterized in that: The cable tray (1), crossbeam (2), upper buckle (3), lower buckle (4), foot (5), and connecting plate (6) are integrally formed.

3. The device for demonstrating the magnetic field effect of a current-carrying coil according to claim 1, characterized in that: The outer wall of the terminal slot (8) is provided with a notch, and the coil (10) is inserted into the terminal slot (8) through the notch and pressed and fixed by the terminal (9).

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