electromagnet

Abstract

This invention provides an electromagnet. The electromagnet includes a power source and a housing, and further includes a core rod, a coil, a winding cylinder, and a bushing disposed within the housing. The winding cylinder is fitted onto the core rod, and the coil is wound around the winding cylinder. A first permanent magnet and a second permanent magnet with opposite magnetic poles are respectively mounted at both ends of the core rod. The two adjacent poles of the first and second permanent magnets have the same polarity. By changing the direction of the current fed into the coil by the power source, the first and second permanent magnets are alternately attracted or repelled by the magnetic field of the coil, driving the core rod to move along the bushing, thereby achieving the alternating movement of the first and second permanent magnets towards the coil. This invention allows for free control of the direction of movement and increases the force of the movement.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic equipment manufacturing, and in particular to electromagnets. Background Technology

[0002] An electromagnet is a device that generates magnetic force by passing an electric current through it. By turning the external current on and off, the electromagnet causes its internal core rod to move mechanically, thus realizing the extension and retraction of the electromagnet's push rod. It is widely used in aviation, aerospace, automotive, photovoltaic and other fields.

[0003] In existing technology, an electromagnet has a push rod on one side with a spring at its end. The push rod can move towards the coil by attracting the ferromagnetic material component with the electromagnet's magnetic force, but its movement away from the coil can only be achieved through inertia and the spring at the end. Mechanical motion achieved by this type of electromagnet has drawbacks such as unstable motion.

[0004] Therefore, how to provide an electromagnet that can freely control the direction of motion and increase the force of motion has become a technical problem that urgently needs to be solved in the industry. Summary of the Invention

[0005] To address the aforementioned problems in the prior art, this utility model proposes an electromagnet, including a power source and a housing, and further including a core rod, a coil, a winding cylinder, and a bushing disposed within the housing. The winding cylinder is fitted onto the core rod, and the coil is wound around the winding cylinder. A first permanent magnet and a second permanent magnet with opposite magnetic poles are respectively installed at both ends of the core rod. The two adjacent poles of the first and second permanent magnets have the same polarity. By changing the direction of the current fed into the coil by the power source, the first and second permanent magnets are alternately attracted or repelled by the magnetic field of the coil, thereby driving the core rod to move along the bushing, thus realizing the alternating movement of the first and second permanent magnets towards the coil.

[0006] In one embodiment, the power supply uses a dual-channel relay to change the direction of the current fed into the coil.

[0007] In one embodiment, the core rod is made of a non-magnetic material.

[0008] In one embodiment, the material of the mandrel includes one of copper, aluminum, zinc, lead, tin, gold, silver, platinum, or austenitic stainless steel.

[0009] In one embodiment, the coil is a high-temperature resistant polyimide enameled copper coil.

[0010] In one embodiment, thermally conductive silicone is injected around the coil inside the housing.

[0011] In one embodiment, the electromagnet includes two bushings, which are respectively disposed on both sides of the winding cylinder. Each bushing has a first step, and both sides of the winding cylinder have a second step that matches the first step.

[0012] In one embodiment, both the first permanent magnet and the second permanent magnet are samarium cobalt magnets.

[0013] In one embodiment, the length of the mandrel is 20-100 mm, and the stroke of the first permanent magnet and the second permanent magnet alternately moving toward the coil is 10-50 mm.

[0014] In one embodiment, the power supply is a DC current source with an output current range of 0-100A.

[0015] Compared to existing electromagnets where the movement of the rod near the coil is manifested by magnetic force, resulting in unstable motion, this invention's electromagnet includes a power source, a housing, a core rod disposed within the housing, a coil, a winding cylinder, and a bushing. The winding cylinder is fitted onto the core rod, and the coil is wound around the winding cylinder. A first permanent magnet and a second permanent magnet with opposite magnetic poles are respectively mounted at both ends of the core rod. The two adjacent poles of the first and second permanent magnets have the same polarity. By changing the direction of the current fed into the coil by the power source, the first and second permanent magnets alternately attract or repel the coil's magnetic field, driving the core rod to move along the bushing, thus achieving the alternating movement of the first and second permanent magnets towards the coil. This invention allows for free control of the direction of movement and increases the force of the movement. Attached Figure Description

[0016] The above-described features and advantages of this invention can be better understood after reading the following detailed description of the embodiments of this disclosure in conjunction with the accompanying drawings. In the drawings, the components are not necessarily drawn to scale, and components having similar related characteristics or features may have the same or similar reference numerals.

[0017] Figure 1 This is a schematic diagram of the composition structure of an embodiment of the electromagnet of this utility model;

[0018] Figure 2 This is a schematic diagram of the motion state of an embodiment of the electromagnet of this utility model; and

[0019] Figure 3 This is a schematic diagram of the second motion state of the electromagnet embodiment of this utility model. Detailed Implementation

[0020] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this invention are limited to these embodiments. On the contrary, the purpose of describing the invention in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] Furthermore, the terms "upper," "lower," "left," "right," "top," "bottom," "horizontal," and "vertical" used in the following description should be understood as the orientations shown in the relevant paragraphs and accompanying drawings. These relative terms are for illustrative purposes only and do not imply that the described device must be manufactured or operated in a specific orientation; therefore, they should not be construed as limiting the scope of this invention.

[0023] It is understood that although terms such as "first," "second," and "third" may be used herein to describe various components, regions, layers, and / or parts, these components, regions, layers, and / or parts should not be limited by these terms, and these terms are only used to distinguish different components, regions, layers, and / or parts. Therefore, the first component, region, layer, and / or part discussed below may be referred to as the second component, region, layer, and / or part without departing from some embodiments of this utility model.

[0024] Please see Figure 1 This is a schematic diagram of the structural composition of an embodiment of the electromagnet 1 of this utility model. Figure 1As shown, the electromagnet 1 of this utility model includes a power supply 10, a housing 11, a core rod 12, a coil 13, a winding cylinder 14, a bushing 15, a first permanent magnet 16, and a second permanent magnet 17. The core rod 12, coil 13, winding cylinder 14, and bushing 15 are disposed in the housing 11. The winding cylinder 14 is sleeved on the core rod 12, and the coil 13 is wound on the winding cylinder 14. The first permanent magnet 16 and the second permanent magnet 17 are installed at both ends of the core rod 12 with their magnetic poles facing each other. The two adjacent poles of the first permanent magnet 16 and the second permanent magnet 17 have the same polarity. By changing the direction of the current fed into the coil 13 by the power supply, the first permanent magnet 16 and the second permanent magnet 17 are alternately attracted or repelled by the magnetic field of the coil 13, thereby driving the core rod 12 to move along the bushing 15, thus realizing the alternating movement of the first permanent magnet 16 and the second permanent magnet 17 towards the coil 13.

[0025] The electromagnet 1 also includes a dual-channel relay 18, through which the power supply 10 changes the direction of the current fed into the coil 13. The power supply 10 is a DC current source with an output current range of 0-100A.

[0026] The core rod 12 is made of a non-magnetic material, including copper, aluminum, zinc, lead, tin, gold, silver, platinum, or austenitic stainless steel. The coil 13 is a high-temperature resistant polyimide enameled copper coil, which allows the coil 13 to conduct electricity and generate electromagnetic force normally at high temperatures. Thermally conductive silicone is injected around the coil 13 inside the outer casing 11 to enhance the heat dissipation of the electromagnet 1, making it less prone to arcing and extending its lifespan.

[0027] The electromagnet 1 includes two bushings 15, which are respectively disposed on both sides of the winding cylinder 14. Each bushing 15 has a first step, and both sides of the winding cylinder 14 have a second step that matches the first step. The first permanent magnet 16 and the second permanent magnet 17 are both samarium cobalt magnets, which are resistant to high temperatures. The length of the core rod 12 is 20-100 mm, and the stroke of the first permanent magnet 16 and the second permanent magnet 17 as they alternately move towards the coil 13 is 10-50 mm.

[0028] See Figure 2 as well as Figure 3 The two figures are schematic diagrams of motion state one and motion state two of the electromagnet embodiment of this utility model, respectively. Figure 2 In the coil 13, the current fed into the coil creates an electromagnetic field with a left N pole and a right S pole. The two closest poles of the first permanent magnet 16 and the second permanent magnet 17 are both N poles, causing the second permanent magnet 17 to move the core rod 12 towards the coil 13 under the influence of magnetic force until it abuts against the housing 11. Figure 3In the process, the direction of the current fed into the coil is changed by the dual-channel relay 18, so that an electromagnetic field with the left S pole and the right N pole is formed in the coil 13. The two adjacent poles of the first permanent magnet 16 and the second permanent magnet 17 are both N poles, so that the second permanent magnet 16 drives the core rod 12 to move toward the coil 13 under the action of magnetic force until it abuts against the housing 11.

[0029] In use such Figure 1 When the electromagnet 1 shown is used, the moving part can be set on the first permanent magnet 16 and / or the second permanent magnet 17, and then the direction of the current fed into the coil 13 can be changed by the dual-channel relay 18 to make the moving part reciprocate towards the coil 14 and away from the coil 14.

[0030] In summary, the electromagnet of this invention includes a power source, a housing, a core rod disposed within the housing, a coil, a winding cylinder, and a bushing. The winding cylinder is fitted onto the core rod, and the coil is wound around the winding cylinder. A first permanent magnet and a second permanent magnet with opposite magnetic poles are respectively mounted at both ends of the core rod. The two adjacent poles of the first and second permanent magnets have the same polarity. By changing the direction of the current fed into the coil by the power source, the first and second permanent magnets are alternately attracted or repelled by the magnetic field of the coil, driving the core rod to move along the bushing, thereby achieving the alternating movement of the first and second permanent magnets towards the coil. This invention allows for free control of the direction of movement and increases the force of the movement.

[0031] The prior description of this disclosure is provided to enable any person skilled in the art to make or use this disclosure. Various modifications to this disclosure will be apparent to those skilled in the art, and the general principles defined herein can be applied to other variations without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not intended to be limited to the examples and designs described herein, but should be granted the widest scope consistent with the principles and novel features disclosed herein. The above embodiments are provided to those skilled in the art for implementing or using this invention. Those skilled in the art can make various modifications or changes to the above embodiments without departing from the inventive concept of this invention. Therefore, the scope of protection of this invention is not limited to the above embodiments, but should be the maximum scope conforming to the innovative features mentioned in the claims.

Claims

1. An electromagnet, comprising a power source and a housing, further comprising a core rod, a coil, a winding cylinder, and a bushing disposed within the housing, wherein the winding cylinder is sleeved on the core rod, and the coil is wound around the winding cylinder, characterized in that, The core rod is equipped with a first permanent magnet and a second permanent magnet with opposite magnetic poles at both ends. The two adjacent poles of the first permanent magnet and the second permanent magnet have the same polarity. By changing the direction of the current fed into the coil by the power supply, the first permanent magnet and the second permanent magnet are alternately attracted or repelled by the magnetic field of the coil, thereby driving the core rod to move along the bushing, thus realizing that the first permanent magnet and the second permanent magnet alternately move towards the coil.

2. The electromagnet according to claim 1, characterized in that, The power supply uses a dual-channel relay to change the direction of the current fed into the coil.

3. The electromagnet according to claim 1, characterized in that, The core rod is made of a non-magnetic material.

4. The electromagnet according to claim 3, characterized in that, The material of the mandrel includes one of copper, aluminum, zinc, lead, tin, gold, silver, platinum, or austenitic stainless steel.

5. The electromagnet according to claim 1, characterized in that, The coil is a high-temperature resistant polyimide enameled copper coil.

6. The electromagnet according to claim 1, characterized in that, Thermally conductive silicone is injected around the coil inside the housing.

7. The electromagnet according to claim 1, characterized in that, The electromagnet includes two bushings, which are respectively disposed on both sides of the winding cylinder. Each bushing has a first step, and both sides of the winding cylinder have a second step that matches the first step.

8. The electromagnet according to claim 1, characterized in that, Both the first permanent magnet and the second permanent magnet are samarium cobalt magnets.

9. The electromagnet according to claim 1, characterized in that, The length of the core rod is 20-100 mm, and the stroke of the first permanent magnet and the second permanent magnet alternately moving close to the coil is 10-50 mm.

10. The electromagnet according to claim 1, characterized in that, The power supply is a DC current source with an output current range of 0-100A.

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