Magnetic core gear

Abstract

The utility model relates to the technical field of motors, in particular to a magnetic core gear. The magnetic core gear comprises a magnetic core rod, a coil is arranged on the periphery of the magnetic core rod, a cavity is formed between the magnetic core rod and the coil, and the periphery of the magnetic core rod is in clearance fit with the coil through the cavity. According to the utility model, the magnetic core gear body is used as the rotor of the motor, a traditional motor mechanism using a coil as the rotor is changed, an electric brush is omitted, the motor structure is simplified, the problem of brush abrasion of the traditional motor is solved, and the problems of large calorific value and short service life of the traditional motor are solved; according to the device, an electric brush is omitted, electric sparks generated during operation of the electric brush do not exist, interference of the electric sparks on remote control radio equipment is greatly reduced, friction force is greatly reduced during operation of the motor, noise is much lower, and stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and specifically, to a magnetic core gear. Background Technique

[0002] A motor is a device that can convert electrical energy into mechanical energy and is one of the key devices widely used in modern society. It has important applications in fields such as household appliances, automobiles, and industrial manufacturing. A motor consists of multiple parts, mainly including the following aspects: the motor part, the rotor part, the brush part, the bearing part, and the housing part;

[0003] Generally, a motor mechanism with a coil as the rotor has a complex structure. When the brush part is used during the operation of the motor, the friction is relatively large, which easily causes the brush to wear, resulting in unsmooth operation, a large amount of heat generation in the motor, a short service life, and relatively loud noise. In view of this, we propose a magnetic core gear. Content of the Utility Model

[0004] The purpose of the present utility model is to provide a magnetic core gear to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the present utility model provides a magnetic core gear, including a motor body. The motor body includes a housing. An electromagnetic driving member is provided at the center inside the housing. A magnetic core gear body is installed at the end of the electromagnetic driving member. The magnetic core gear body is driven to rotate by the electromagnetic driving member under the principle of electromagnetic induction.

[0006] As a further improvement of this technical solution, the magnetic core gear body includes a magnetic core rod, and a coil is arranged around the magnetic core rod. Among them: a cavity is formed between the magnetic core rod and the coil, and the magnetic core rod and the coil are in clearance fit through the cavity.

[0007] As a further improvement of this technical solution, the magnetic core gear body further includes a tooth disc, and the tooth disc is composed of a rim and teeth. Among them: the teeth are evenly distributed on the outer wall of the annular rim.

[0008] As a further improvement of this technical solution, the electromagnetic driving member includes a rotating shaft. The bottom end of the magnetic core rod extends into the housing. Among them: the bottom end of the rotating shaft is rotatably connected to the bottom end inside the housing, and the top end of the rotating shaft is fixedly connected to the bottom end of the magnetic core rod.

[0009] As a further improvement of this technical solution, an end cover is installed at the top of the housing. Among them: the top end of the end cover is connected to the bottom end of the tooth disc.

[0010] Compared with the prior art, the beneficial effects of the present utility model:

[0011] In this magnetic core gear, by using the magnetic core gear body as the rotor of the motor, the traditional motor mechanism with the coil as the rotor is changed, the brush is cancelled, the motor structure is simplified, the problem of brush wear in the traditional motor is solved, and at the same time, the problems of large heat generation and short service life in the traditional motor are solved; this device cancels the brush, there is no electric spark generated during the operation of the brush, greatly reducing the interference of the electric spark to the remote control radio equipment. At the same time, when the motor is running, the friction force is greatly reduced, the operation is smooth, and the noise will be much lower, improving the stability. Brief Description of the Drawings

[0012] Figure 1 The first overall structure diagram of the present utility model;

[0013] Figure 2 The second overall structure diagram of the present utility model;

[0014] Figure 3 The top view of the overall structure of the present utility model.

[0015] The meanings of each label in the figure are as follows:

[0016] 1. Motor body; 10. Housing; 2. Electromagnetic drive member; 3. Magnetic core gear body; 30. Magnetic core rod; 301. Cavity; 31. Tooth disc; 310. Rim; 311. Teeth; 20. Rotating shaft; 101. End cover. Detailed Description of the Preferred Embodiment

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] A motor is a device that can convert electrical energy into mechanical energy and is one of the key devices widely used in modern society. It has important applications in fields such as household appliances, automobiles, and industrial manufacturing. A motor consists of multiple parts, mainly including the following aspects: the motor part, the rotor part, the brush part, the bearing part, and the housing part.

[0019] Please refer to Figures 1 - 3As shown in the figure, this embodiment provides a magnetic core gear, which includes a motor body 1. Considering that the motor mechanism with a coil as the rotor generally has a complex structure, and when using a brush part during the operation of the motor, the friction is relatively large, which easily causes the brush to wear, the operation is not smooth, the motor generates a large amount of heat, has a short service life, and at the same time has a relatively large noise. Therefore, specifically as follows: The motor body 1 includes a housing 10, and an electromagnetic driving member 2 is arranged at the center inside the housing 10. A magnetic core gear body 3 is installed at the end of the electromagnetic driving member 2. Under the principle of electromagnetic induction, the electromagnetic driving member 2 drives the magnetic core gear body 3 to rotate.

[0020] The improvement of this embodiment lies in:

[0021] By using the magnetic core gear body 3 as the rotor of the motor, it changes the traditional motor mechanism with a coil as the rotor, cancels the brush, simplifies the motor structure, solves the problem of brush wear in traditional motors, and at the same time solves the problems of large heat generation and short service life in traditional motors. Without the electric spark generated during the operation of the brush, it greatly reduces the interference of the electric spark to the remote control radio equipment. At the same time, the friction during the operation of the motor is greatly reduced, the operation is smooth, and the noise is much lower, improving the stability.

[0022] Considering how to make the magnetic core rod 30 rotate, therefore, the magnetic core gear body 3 includes a magnetic core rod 30, and a coil is arranged around the magnetic core rod 30. Among them: A cavity 301 is formed between the magnetic core rod 30 and the coil, and the magnetic core rod 30 and the coil are in clearance fit through the cavity 301. When the coil is energized, according to Ampere's rule, a magnetic field will be generated along the central axis direction of the coil. Since there is an appropriate clearance fit between the coil and the magnetic core rod 30 through the cavity 301, this magnetic field will act on the magnetic core rod 30. According to the magnetic material characteristics of the magnetic core rod 30, it will be affected by the magnetic force and try to align with the magnetic field direction, resulting in the rotation of the magnetic core rod 30.

[0023] In order to cancel the traditional motor structure with a coil as the rotor, the magnetic core gear body 3 further includes a tooth disc 31, and the tooth disc 31 is composed of a rim 310 and teeth 311. Among them: The teeth 311 are evenly distributed on the outer wall of the annular rim 310.

[0024] Considering that the magnetic core rod 30 needs physical support, therefore, the electromagnetic driving member 2 includes a rotating shaft 20, and the bottom end of the magnetic core rod 30 extends into the housing 10. Among them: The bottom end of the rotating shaft 20 is rotatably connected to the bottom end inside the housing 10, and the top end of the rotating shaft 20 is fixedly connected to the bottom end of the magnetic core rod 30. The rotating shaft 20 provides physical support for the magnetic core rod 30 inside the magnetic core gear body 3 to ensure that they can maintain the correct position and direction. The stability of the magnetic core rod 30 directly affects the uniformity and intensity of the magnetic field distribution, and thus affects the transmission effect and the stability of the system.

[0025] To prevent dust or other sundries from entering the interior of the motor body 1, an end cap 101 is installed at the top of the housing 10, where: the top of the end cap 101 is connected to the bottom of the gear disk 31, and the motor body 1 is enclosed by the end cap 101.

[0026] When the magnetic core gear of the present utility model is in specific use, since the rotating shaft 20 is connected to the magnetic core rod 30, the rotating shaft 20 provides physical support for the magnetic core rod 30 in the magnetic core gear body 3 to ensure that they can maintain the correct position and direction. When the electromagnetic drive member 2 is powered on, the power source is transmitted to the coil. When the coil is energized, according to Ampere's law, a magnetic field will be generated along the central axis direction of the coil. Since there is an appropriate clearance fit between the coil and the magnetic core rod 30 through the cavity 301, this magnetic field will act on the magnetic core rod 30. According to the magnetic material characteristics of the magnetic core rod 30, it will be subjected to the action of magnetic force and attempt to align with the magnetic field direction, thereby causing the magnetic core rod 30 to rotate.

[0027] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic core gear, comprising a motor body (1), characterized in that: The motor body (1) comprises a cover (10), an electromagnetic driving component (2) is arranged at the center of the cover (10), a magnetic core gear body (3) is installed at the end of the electromagnetic driving component (2), and the electromagnetic driving component (2) drives the magnetic core gear body (3) to rotate under the principle of electromagnetic induction.

2. The magnetic core gear according to claim 1, characterized in that: The magnetic core gear body (3) comprises a magnetic core rod (30), and a coil is arranged on the periphery of the magnetic core rod (30), wherein: a cavity (301) is formed between the magnetic core rod (30) and the coil, and the periphery of the magnetic core rod (30) and the coil are gap-fitted via the cavity (301).

3. The magnetic core gear according to claim 1, characterized in that: The magnetic core gear body (3) further comprises a toothed disc (31), wherein the toothed disc (31) is composed of a wheel rim (310) and wheel teeth (311), wherein the wheel teeth (311) are evenly distributed on the outer wall of the annular wheel rim (310).

4. The magnetic core gear according to claim 2, characterized in that: The electromagnetic drive component (2) comprises a rotating shaft (20), and the bottom end of the magnetic core rod (30) extends into the interior of the cover shell (10), wherein: the bottom end of the rotating shaft (20) is rotatably connected to the bottom end of the interior of the cover shell (10), and the top end of the rotating shaft (20) is fixedly connected to the bottom end of the magnetic core rod (30).

5. The magnetic core gear according to claim 1, characterized in that: An end cover (101) is installed at the top end of the cover shell (10), wherein the top end of the end cover (101) is connected to the bottom end of the toothed disc (31).

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