Ampere force demonstrator

Abstract

The utility model discloses an ampere force demonstrator which comprises a base, a pointer support, a pointer assembly and a magnet support. The pointer bracket is fixed on the upper surface of the base; the pointer assembly comprises at least two conductive wiring pieces, a power-on wire frame and a pointer body. One ends of the two conductive wiring pieces are fixedly connected with the magnet bracket, and the other ends extend out of the magnet bracket; the connecting part is movably connected with one end, far away from the magnet bracket, of the conductive wiring piece; the pointer body is fixedly connected with the outer wall of the electrified wire frame; the magnet support slides on the upper surface of the base and is located on one side of the magnet support, and the upper surface of the magnet support is provided with a U-shaped magnet set capable of penetrating into a space defined by the electrified wire frame. Through the arrangement, the Ampere force demonstration instrument can clearly demonstrate the relationship between Ampere force and each influence factor, and is convenient to use in physics teaching.

Description

Technical Field

[0001] This utility model relates to the field of teaching equipment, and in particular to an Ampere force demonstrator. Background Technology

[0002] In the field of physics teaching and experimental demonstration, the Ampere force demonstrator plays a vital role in helping students understand the principles of electromagnetism.

[0003] However, current Ampere force demonstrators still have certain shortcomings. For example, in terms of magnetic field strength adjustment, most Ampere force demonstrators still use the method of adjusting the distance between two magnets to change the magnetic field strength. However, in reality, the magnetic field created by this method is approximately uniform between the two magnets. Even with adjusting the distance, the change in magnetic field strength is extremely limited, making it difficult to visually demonstrate the significant impact of magnetic field strength on Ampere force in experiments. This prevents students from clearly observing the changes in Ampere force caused by changes in magnetic field strength. Furthermore, the common magnet configuration involves two bar magnets connected by a conductor. This connection method is prone to magnetic field interruption, resulting in an uneven and unstable magnetic field distribution. During experiments, an unstable magnetic field introduces additional error factors, interfering with the accurate exploration of the relationship between Ampere force and magnetic field strength, affecting the accuracy of experimental data and the reliability of experimental results, and thus hindering students' in-depth and accurate understanding of the connection between Ampere force and magnetic field strength.

[0004] Therefore, an Ampere force demonstrator is needed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an Ampere force demonstrator that is simple in structure, easy to operate, and provides intuitive and accurate demonstration results. It can clearly show the relationship between Ampere force and various influencing factors, making it convenient for use in physics teaching.

[0006] To solve the above-mentioned technical problems, this utility model provides an Ampere force demonstrator, including a base, a pointer support, a pointer assembly, and a magnet support;

[0007] The pointer holder is fixed to the upper surface of the base;

[0008] The pointer assembly includes at least two conductive connectors, a wire frame, and a pointer body;

[0009] One end of each of the two conductive connectors is fixedly connected to the magnet bracket, and the other end extends to the outside of the magnet bracket;

[0010] The power line frame has a connection portion that matches the number of the conductive connectors. The connection portion is movably connected to the end of the conductive connector away from the magnet bracket, so that while the power line frame is conductively connected to the conductive connector, it can also swing relative to the magnet bracket.

[0011] The pointer body is fixedly connected to the outer wall of the wire frame;

[0012] The magnet bracket slides on the upper surface of the base and is located on one side of the magnet bracket, and the upper surface is provided with a U-shaped magnet group that can pass through the wire frame and surround the space formed.

[0013] The magnet bracket is movable and self-locking relative to the pointer bracket to adjust the relative position between the power line frame and the U-shaped magnet assembly.

[0014] Furthermore, it also includes a scale plate;

[0015] The scale plate is fixedly installed on the upper surface of the base and is perpendicular to the pointer bracket, with a gap reserved between them.

[0016] Furthermore, the pointer body is located within the gap.

[0017] Furthermore, the conductive connector is provided in three parts, and the wire frame has three connecting parts, so that the space formed by the wire frame includes a first space and a second space.

[0018] The U-shaped magnet assembly is provided in two sets, which are respectively inserted into the first space and the second space.

[0019] Furthermore, the number of U-shaped magnets in the two sets of U-shaped magnets are different.

[0020] Furthermore, the conductive connector includes a terminal block and a conductive copper sheet;

[0021] The terminal block is disposed on the pointer bracket;

[0022] Both ends of the conductive copper sheet are provided with connection holes, one of which is used to connect to the terminal block and the other is used to connect to the connection part.

[0023] Furthermore, the wire frame is made of phosphor bronze sheet material.

[0024] Furthermore, the base includes a panel, a housing, and a sealing plate arranged sequentially from top to bottom;

[0025] Both the pointer holder and the magnet holder are mounted on the panel.

[0026] Compared with the prior art, the present invention has at least the following beneficial effects:

[0027] By setting up a pointer assembly including a pointer bracket, conductive connectors, a wire frame, and a pointer body, and a magnet bracket, and setting a U-shaped magnet group on the magnet bracket that can pass through the space formed by the wire frame, when the wire frame is connected to an external power source, according to the Ampere force principle, the wire frame can drive the pointer body to deflect. Therefore, the magnitude of the input power and the magnitude of the Ampere force can be investigated based on the deflection amplitude.

[0028] Furthermore, by allowing the magnet support to move relative to the pointer support, the positional relationship between the wire frame and the U-shaped magnet assembly can be changed. Since the magnetism is strongest at the port of the U-shaped magnet assembly and relatively weaker in the middle region, when the magnitude of the current input from the external power supply remains constant, the magnitude of the magnetic field strength and the magnitude of the Ampere force can be explored based on the positional relationship between the wire frame and the U-shaped magnet assembly. This clearly demonstrates the relationship between the Ampere force and various influencing factors, making it convenient for use in physics teaching.

[0029] Furthermore, by setting up a scale plate, the range of pointer deflection during each experiment can be effectively recorded, providing a data basis for subsequent experimental verification.

[0030] Furthermore, by setting up three conductive connectors, three connecting parts, and two sets of U-shaped magnets that pass through the first and second spaces formed by the conductive connectors respectively, and the number of U-shaped magnets in the two sets of U-shaped magnets being different, it is possible to complete the investigation of the effective length of the conductive connector in the magnetic field and the magnitude of the Ampere force by connecting the conductive connectors in pairs to form a closed loop. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an Ampere force demonstrator in one embodiment of the present invention;

[0032] Figure 2 This is a partial structural schematic diagram of an Ampere force demonstrator in one embodiment of the present invention.

[0033] Reference numerals: 1. Base; 11. Panel; 12. Housing; 13. Cover plate; 2. Pointer support; 3. Pointer assembly; 31. Conductive connector; 311. Terminal block; 312. Conductive copper sheet; 32. Conductive wire frame; 33. Pointer body; 4. Magnet support; 41. U-shaped magnet assembly; 5. Scale plate. Detailed Implementation

[0034] The Ampere force demonstrator of this utility model will now be described in more detail with reference to the accompanying drawings, which illustrate preferred embodiments of the present utility model. It should be understood that those skilled in the art can modify the present utility model described herein while still achieving its advantageous effects. Therefore, the following description should be understood as being of general knowledge to those skilled in the art and is not intended to limit the present utility model.

[0035] The present invention will be described in more detail below by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0036] like Figure 1 and Figure 2 As shown in the figure, this utility model embodiment proposes an Ampere force demonstrator, including a base 1, a pointer bracket 2, a pointer assembly 3, and a magnet bracket 4.

[0037] The pointer bracket 2 is fixed to the upper surface of the base 1.

[0038] In this embodiment, the pointer assembly 3 includes at least two conductive connectors 31, a wire frame 32, and a pointer body 33.

[0039] One end of each of the two conductive connectors 31 is fixedly connected to the magnet bracket 4, and the other end extends to the outside of the magnet bracket 4 for connection to the electrical wire frame 32.

[0040] Specifically, the wire frame 32 has a connecting portion matching the number of conductive connectors 31. This connecting portion is movably connected to the end of each conductive connector 31 away from the magnet support 4, allowing the wire frame 32 to be electrically connected to the conductive connectors 31 while also being able to swing relative to the magnet support 4. The pointer body 33 is fixedly connected to the outer wall of the wire frame 32, meaning that when the wire frame 32 swings under Ampere force, it synchronously drives the pointer body 33 to swing, thus allowing the magnitude of the Ampere force to be visually reflected by the amplitude of the pointer body 33's swing.

[0041] Furthermore, the magnet bracket 4 slides on the upper surface of the base 1 and is located on one side of the magnet bracket 4. The upper surface is provided with a U-shaped magnet group 41 that can pass through the wire frame 32 and surround the space formed, so as to form a magnetic field outside the wire frame 32, so that when the wire frame 32 is energized and forms a closed circuit, it can be subjected to Ampere force.

[0042] It should be noted that the magnet bracket 4 can move and self-lock relative to the pointer bracket 2 to adjust the relative position between the wire frame 32 and the U-shaped magnet group 41. Since the magnetism is strongest at the port of the U-shaped magnet group 41 and relatively weaker in the middle area, the magnetic field strength of the wire frame 32 can be adjusted by changing the relative position between the U-shaped magnet group 41 and the wire frame 32 to explore the influence of magnetic field strength on Ampere force.

[0043] This device comprises a pointer support 2, a pointer assembly 3 including a conductive connector 31, a wire frame 32, and a pointer body 33, and a magnet support 4. The magnet support 4 is equipped with a U-shaped magnet assembly 41 that can pass through the space formed by the wire frame 32. When the wire frame 32 is connected to an external power source, according to the Ampere force principle, the wire frame 32 can drive the pointer body 33 to deflect. Therefore, the magnitude of the input power and the magnitude of the Ampere force can be investigated based on the deflection amplitude.

[0044] Furthermore, by allowing the magnet support 4 to move relative to the pointer support 2, the positional relationship between the wire frame 32 and the U-shaped magnet group 41 can be changed. Since the magnetism is strongest at the port of the U-shaped magnet group 41 and relatively weaker in the middle region, when the magnitude of the current input from the external power supply remains constant, the magnitude of the magnetic field strength and the magnitude of the Ampere force can be explored based on the positional relationship between the wire frame 32 and the U-shaped magnet group 41. This clearly demonstrates the relationship between the Ampere force and various influencing factors, making it convenient for use in physics teaching.

[0045] In a further embodiment, the Ampere force demonstrator also includes a scale plate 5 for recording data parameters during the experiment, providing a data basis for subsequent experimental verification.

[0046] Specifically, the scale plate 5 is fixedly installed on the upper surface of the base 1 and is perpendicular to the pointer bracket 2, with a gap reserved between them.

[0047] The pointer body 33 is located within the gap to ensure that the scale plate 5 does not interfere with the swing of the pointer body 33 and the wire frame 32.

[0048] It should be noted that when the power supply frame 32 is not powered, the pointer body 33 is always in a vertical position, that is, the pointer points to the middle of the scale plate 5.

[0049] like Figure 1 and Figure 2 As shown, in this embodiment, the number of conductive connectors 31 is further limited to allow for a more intuitive exploration of the relationship between each parameter and the magnitude of the Ampere force.

[0050] Specifically, the conductive connector 31 is provided in three parts, and the conductive wire frame 32 has three connecting parts, so that the space formed by the conductive wire frame 32 includes a first space and a second space.

[0051] The U-shaped magnet group 41 is provided in two sets, so that it can be inserted into the first space and the second space respectively.

[0052] It should be noted that the number of U-shaped magnets in the two sets of U-shaped magnet groups 41 is different, which makes the effective length of the wire frame 32 in each magnetic field different (i.e., in a multiple relationship). Therefore, the two conductive connectors 31 can be connected to the positive and negative poles of the external power supply to form a closed loop, so as to explore the effective length of the wire frame 32 in the magnetic field and the magnitude of the Ampere force.

[0053] In one example, a U-shaped magnet group 41 consisting of one U-shaped magnet is used as the first magnet, and a U-shaped magnet group 41 consisting of two U-shaped magnets is used as the second magnet. The effective length of the wire frame 32 in the magnetic field corresponding to the second magnet is twice the effective length of the magnetic field corresponding to the second magnet. Therefore, when the current input to the wire frame 32 is a certain value, the Ampere force in the magnetic field formed by the first magnet, the magnetic field formed by the second magnet, and the overall magnetic field formed by the first and second magnets can be measured by connecting the three conductive connectors 31 in pairs. The relationship between the values ​​can be detected, thereby completing the investigation of the effective length of the wire frame 32 in the magnetic field and the magnitude of the Ampere force.

[0054] In one example, the conductive connector 31 is further defined to better conduct electricity to the wire frame 32 without affecting the swing of the wire frame 32.

[0055] Specifically, the conductive connector 31 includes a terminal block 311 and a conductive copper sheet 312.

[0056] The terminal block 311 is disposed on the pointer bracket 2, and both ends of the conductive copper sheet 312 are provided with connection holes, one of which is used to connect the terminal block 311 and the other is used to connect the connection part.

[0057] In this embodiment, the electrical wire frame 32 is made of phosphor bronze sheet material to have good conductivity.

[0058] In a further embodiment, a specific base 1 is also proposed to better support the various components. The base 1 includes a panel 11, a housing 12, and a cover plate 13 arranged sequentially from top to bottom, and the pointer bracket 2 and the magnet bracket 4 are both disposed on the panel 11.

[0059] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An Ampere force demonstrator, characterized in that, Includes base, pointer holder, pointer assembly, and magnet holder; The pointer holder is fixed to the upper surface of the base; The pointer assembly includes at least two conductive connectors, a wire frame, and a pointer body; One end of each of the two conductive connectors is fixedly connected to the magnet bracket, and the other end extends to the outside of the magnet bracket; The power line frame has a connection portion that matches the number of the conductive connectors. The connection portion is movably connected to the end of the conductive connector away from the magnet bracket, so that the power line frame can swing relative to the magnet bracket while being electrically connected to the conductive connector. The pointer body is fixedly connected to the outer wall of the wire frame; The magnet bracket slides on the upper surface of the base and is located on one side of the magnet bracket, and the upper surface is provided with a U-shaped magnet group that can pass through the wire frame and surround the space formed. The magnet bracket is movable and self-locking relative to the pointer bracket to adjust the relative position between the power line frame and the U-shaped magnet assembly.

2. The Ampere force demonstrator as described in claim 1, characterized in that, It also includes a scale plate; The scale plate is fixedly installed on the upper surface of the base and is perpendicular to the pointer bracket, with a gap reserved between them.

3. The Ampere force demonstrator as described in claim 2, characterized in that, The pointer body is located within the gap.

4. The Ampere force demonstrator as described in claim 1, characterized in that, The conductive connector is provided in three parts, and the wire frame has three connecting parts, so that the space formed by the wire frame includes a first space and a second space. The U-shaped magnet assembly is provided in two sets, which are respectively inserted into the first space and the second space.

5. The Ampere force demonstrator as described in claim 4, characterized in that, The number of U-shaped magnets in the two sets of U-shaped magnets are different.

6. The Ampere force demonstrator as described in claim 1, characterized in that, The conductive connector includes a terminal block and a conductive copper sheet; The terminal block is disposed on the pointer bracket; Both ends of the conductive copper sheet are provided with connection holes, one of which is used to connect to the terminal block and the other is used to connect to the connection part.

7. The Ampere force demonstrator as described in claim 1, characterized in that, The wire frame is made of phosphor bronze sheet.

8. The Ampere force demonstrator as described in claim 1, characterized in that, The base includes a panel, a housing, and a sealing plate arranged sequentially from top to bottom; Both the pointer holder and the magnet holder are mounted on the panel.

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