Quick-response high-strength electromagnet
By introducing a second iron core and a second coil into the electromagnet, and utilizing their magnetic assistance to break the circuit, the problem of insufficient spring return force is solved, resulting in a faster circuit breaking response speed and higher reliability.
Patent Information
- Application Number
- CN202520189842.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-07
AI Technical Summary
High-strength electromagnets with fast response rely on the relatively small spring force when the circuit is broken, resulting in a slow rebound speed. Furthermore, the spring force decreases during use, affecting the electromagnet's fast response capability.
A second iron core and a second coil are introduced into the electromagnet structure. The magnetism of the second iron core is used to assist the spring's return force when the circuit is broken. By setting the spring and the second iron core between the first fixed plate and the second fixed plate, the second iron core generates magnetism when the power is off to accelerate the circuit breaking process.
The magnetic assistance of the second iron core shortens the time required for the electromagnet to break the circuit, improves the response speed and reliability, and reduces the impact of spring return force attenuation.
Smart Images
Figure CN223842700U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-strength electromagnets, specifically a fast-response high-strength electromagnet. Background Technology
[0002] An electromagnet is a device that generates magnetism when an electric current flows through it. It typically consists of an iron core and conductive windings surrounding it. When current flows through the windings, the iron core is magnetized, causing the electromagnet to exhibit properties similar to a permanent magnet. The magnetism of an electromagnet can be adjusted by controlling the presence, magnitude, or direction of the current flowing through it. Once the power is off, the magnetism in the electromagnet quickly disappears because it is usually made of materials that are easily magnetized and demagnetized, such as soft iron or silicon steel. Electromagnets can be classified according to the type of current they carry: alternating current (AC) electromagnets and direct current (DC) electromagnets. Furthermore, they can be classified according to their application, such as lifting electromagnets, braking electromagnets, traction electromagnets, and valve electromagnets. Lifting electromagnets are commonly used for hoisting steel and other magnetically conductive materials, while braking electromagnets are used for mechanical braking in electrical drive systems.
[0003] A fast-response high-strength electromagnet is a device capable of generating a strong magnetic force in a short time. It is typically used in automated equipment requiring rapid positioning, clamping, or pulling. The design of these electromagnets focuses on optimizing coil structure, using high-performance magnetic materials, and employing advanced drive circuits to achieve rapid magnetic force generation and release. However, while the fast-response high-strength electromagnet improves the connection, it still relies on the spring's elasticity to break the circuit. The spring's own return force is relatively small, thus affecting the rebound speed. Furthermore, in actual use, the spring's return force diminishes with repeated use, making a rapid response even more difficult and increasing the time required to break the circuit. Utility Model Content
[0004] The purpose of this invention is to provide a fast-response, high-strength electromagnet. This is achieved by setting a first iron core in the center of the bottom surface of a second fixed plate, a first coil outside the first iron core, a first pre-drilled hole on a first movable plate, and springs on the left and right sides of the bottom of the first movable plate. This function, by connecting current to the second coil, makes the second iron core magnetic. When the electromagnet is broken, in addition to utilizing the tension of the springs, it also possesses the magnetism generated by the second iron core, enabling a rapid response and shortening the time required to break the circuit.
[0005] To achieve the above objectives, a fast-response high-strength electromagnet is provided, comprising a first fixing plate, a second fixing plate above the first fixing plate, a second iron core fixedly connected to the center of the bottom surface of the second fixing plate, a second coil wound around the outside of the second iron core, springs fixedly connected to the left and right sides of the bottom of the second fixing plate, and a second reserved hole provided in the center of the front side of the top surface of the second fixing plate.
[0006] According to the aforementioned fast-response high-strength electromagnet, the second pre-drilled hole penetrates the second fixing plate, and the second coil penetrates the second pre-drilled hole. This arrangement allows the second coil to pass through the second fixing plate and wind around the second iron core.
[0007] According to the aforementioned fast-response high-strength electromagnet, a movable plate is provided below the second fixed plate, the movable plate is fixedly connected to a spring, and the movable plate is located between the first fixed plate and the second fixed plate.
[0008] According to the aforementioned fast-response high-strength electromagnet, a plurality of first iron cores are fixedly connected to the top of the first fixed plate, and a first coil is wound around the outside of each of the first iron cores. This arrangement, through the multiple first iron cores and the first coils, increases the attraction force on the moving plate, enabling it to respond quickly.
[0009] According to the aforementioned fast-response high-strength electromagnet, the front side of the top face of the first fixing plate is provided with a plurality of first reserved holes, and the first reserved holes penetrate the first fixing plate, and the first reserved holes are correspondingly arranged with the first coil.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. By setting a second coil, a second reserved hole, a second iron core, and a spring, and by setting a first iron core in the middle of the bottom surface of the second fixed plate, setting a first coil outside the first iron core, setting a first reserved hole on the first moving plate, and setting springs on the left and right sides of the bottom of the first moving plate, this function enables the second iron core to become magnetic by connecting current to the second coil. This allows the electromagnet to react quickly and shorten the time required to break the circuit, in addition to utilizing the tension of the spring.
[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0014] Figure 1 This is a three-dimensional structural diagram of a fast-response high-strength electromagnet according to the present invention;
[0015] Figure 2 This is a front cross-sectional view of the second fixing plate portion of a fast-response high-strength electromagnet according to the present invention;
[0016] Figure 3 This is a front cross-sectional view of the first fixing plate portion of a fast-response high-strength electromagnet according to the present invention.
[0017] In the diagram: 1. First fixed plate; 2. Second fixed plate; 3. Movable plate; 4. First iron core; 5. Spring; 6. Second reserved hole; 7. Second coil; 8. Second iron core; 9. First coil; 10. First reserved hole. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0019] Please see Figure 1-3 This utility model provides a technical solution: a fast-response high-strength electromagnet, including a first fixing plate 1, a plurality of first iron cores 4 are fixedly connected to the top of the first fixing plate 1, and a first coil 9 is wound around the outside of each of the first iron cores 4. The first coil 9 is used to make the first iron core 4 magnetic after being energized. A plurality of first reserved holes 10 are provided on the front side of the top of the first fixing plate 1, and the first reserved holes 10 penetrate the first fixing plate 1, and the first coil 9 penetrates the first reserved holes 10.
[0020] A second fixed plate 2 is provided above the first fixed plate 1, and a movable plate 3 is provided below the second fixed plate 2. The movable plate 3 is made of iron material, which is convenient to be attracted to the first iron core 4 and the second iron core 8 after they become magnetic. The movable plate 3 is fixedly connected to the spring 5. The movable plate 3 is located between the first fixed plate 1 and the second fixed plate 2. The second iron core 8 is fixedly connected to the middle of the bottom surface of the second fixed plate 2. The second coil 7 is wound around the outside of the second iron core 8. The second coil 7 is used to make the second iron core 8 magnetic after being energized. The spring 5 is fixedly connected to the left and right sides of the bottom of the second fixed plate 2. A second reserved hole 6 is provided in the middle of the front side of the top surface of the second fixed plate 2. The second reserved hole 6 penetrates the second fixed plate 2, and the second coil 7 penetrates the second reserved hole 6.
[0021] Working principle: During operation, the first coil 9 is energized, making the first iron core 4 magnetic and attracting the moving plate 3. This causes the moving plate 3 and the first iron core 4 to come into contact, forming a current path. Because multiple first coils 9 and first iron cores 4 are used, the magnetic attraction is strong, resulting in a faster response speed. When it is necessary to disconnect the current, the current to the first coil 9 is disconnected, causing the first iron core 4 to lose its magnetism. At the same time as disconnecting the current to the first coil 9, the current to the second coil 7 is connected, making the second iron core 8 magnetic. Therefore, when the current to the first coil 9 is disconnected, the moving plate 3 retracts under the pull of the spring 5. Simultaneously, the magnetic attraction of the second iron core 8 to the moving plate 3 further accelerates its reset and retraction response.
[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A fast-response high-strength electromagnet, comprising a first fixing plate (1), characterized in that, A second fixing plate (2) is provided above the first fixing plate (1). A second iron core (8) is fixedly connected to the middle of the bottom surface of the second fixing plate (2). A second coil (7) is wound around the outside of the second iron core (8). Springs (5) are fixedly connected to the left and right sides of the bottom of the second fixing plate (2). A second reserved hole (6) is provided in the middle of the front side of the top of the second fixing plate (2).
2. The fast-response high-strength electromagnet as described in claim 1, characterized in that: The second reserved hole (6) passes through the second fixing plate (2), and the second coil (7) passes through the second reserved hole (6).
3. The fast-response high-strength electromagnet as described in claim 1, characterized in that: A movable plate (3) is provided below the second fixed plate (2). The movable plate (3) is fixedly connected to the spring (5). The movable plate (3) is located between the first fixed plate (1) and the second fixed plate (2).
4. The fast-response high-strength electromagnet as described in claim 1, characterized in that: The top of the first fixing plate (1) is fixedly connected with several first iron cores (4), and the outside of each first iron core (4) is wound with a first coil (9).
5. A fast-response high-strength electromagnet as described in claim 1, characterized in that: The top front side of the first fixing plate (1) is provided with a plurality of first reserved holes (10), and the first reserved holes (10) penetrate the first fixing plate (1). The first reserved holes (10) and the first coil (9) are provided in correspondence.