KR102039538B1 - Motor - Google Patents

Abstract

According to the present invention, the rotor core may be disposed in a cylindrical shape to have a hollow portion therein, and the structure may be configured to place permanent magnets on both sides of the rotor core, thereby reducing the weight and allowing the rotor coil to be wound in parallel. No need for back light, the number of related parts constituting the motor and the simple assembly make it possible to reduce the production cost drastically, and to reduce and increase the size according to the place to be installed or the part or device to be used. To achieve a higher power than a general motor of the same size;
A rotor positioned in the axial center direction of the housing to form a magnetic force while a rotor magnetic field is formed; It is characterized in that the stator is located on the front and rear of the rotor to form a magnetic force, attractive force and repulsive force of the rotor and is maintained in the housing so that the rotor can rotate.

Description

Motor using permanent magnet {MOTOR}

The present invention relates to a motor using a permanent magnet, and more particularly, the motor quality is improved by obtaining a high output (rotation power) while pursuing miniaturization and light weight through structural change of the rotor and structural change of the stator. The present invention relates to the provision of a motor to increase durability.

Generally, the configuration of the motor will be briefly described with reference to FIG. 7. The motor 10 includes a cylindrical motor housing 12 having an installation space therein, and is permanently fixed at regular intervals along an inner circumferential surface of the motor housing 12. A plurality of stators 13 which are magnets are installed.

The rotor coil 15 is wound around the plurality of rotor cores 14 which are positioned at the inner center of the motor housing 12 corresponding to the inside of the stator 13 and are laminated with a metal plate material. A rotor 16 is provided which rotates by interaction with the stator 13 while forming a rotor magnetic field by the current applied to the 15.

Rotor coil 15 that is composed of a large shaft (17) which is rotated together with the rotor 16 in the fitted state coupled to the center of the rotor core 14 constituting the rotor 16, the rotor coil (15) It is apparent that a brush or the like coupled to the shaft 17 so as to apply power to the furnace and a bearing or the like for stably maintaining the shaft 17 with respect to the housing are additionally provided.

When the current is applied to the motor 10 through the connector and the brush, the current flows through the rotor coil 15 constituting the rotor 16 and a magnetic field is formed while a rotating magnetic field is formed around the rotor 16. The shaft 17 is driven as the rotor 16 is rotated by the attraction force and the repulsive force formed between the magnetic force and the stator 13.

(Document 1) Patent application No. 10-2013-0028591 (Document 2) Patent No. 10-0601799-0000 (Document 3) Patent No. 10-1754038-0000

None.

In the case of a motor that receives electric power and outputs a rotational force, the technology is being evolved and developed in various forms and configurations as in the case of documents 1,2 and 3, and in this case, it is developed exclusively for a specific purpose. As it is used, there is a disadvantage that the versatility is poor.

In the conventional motor according to the related art, a rotor core made of a metal plate material is laminated on a shaft constituting the rotor so as to have a cylindrical shape, and the rotor core is wound around the rotor coil to form a rotating magnetic field when a current is supplied. Therefore, the metal shaft is added to the disadvantage that the entire volume of the rotor is increased and the weight is excessively increased.

Since the rotor coil is not wound on the rotor core or a general bobbin type (parallel winding or parallel winding), a winding device must be provided or developed so that the entire production cost of the motor is not free from problems. .

In particular, the stator should be attached or fixed over the entire inner wall of the motor housing, which also has the same size as the rotor, and is finished with an end cap or a closing cap in the state attached to the entire motor housing. Eventually, the weight of the entire motor increases, making it vulnerable to weight reduction and miniaturization.

In other words, when the motor is to be applied to a very compact component or device to provide rotational force, or when a motor having high performance is to be installed in spite of a small installation space, the entire motor becomes large in volume and weight. It is heavy, making it difficult to install.

In light of the development of industry and technology, it is not suitable in light of the trend of demanding high-speed rotation, and it is not practical to reduce the weight of the rotor indefinitely to maximize the centrifugal force required for rotation. There are many problems, such as failing to do so.

In the present invention, to solve the above problems, the invention, the rotor 101 is located in the axial center direction of the housing 101 to form a magnetic force while forming a rotating magnetic field;

Stator 130 is located in the front and rear of the rotor 110 to form a magnetic force, attraction force and repulsive force of the rotor 110 is maintained by the housing 101 so that the rotor 110 can rotate Consisting of;

By arranging the rotor core in a cylindrical shape, it has a hollow portion inside, and maintains the configuration of disposing permanent magnets on both sides of the rotor core, so that the weight can be lightened and the rotor coil can be wound in parallel, so a special winding device is required. The number of related parts constituting the motor and the simple assembly make it possible to greatly reduce the production cost, to reduce the size and increase the size according to the place to be installed or the parts or devices to be used. It is possible to achieve the purpose of obtaining a higher output than a general motor.

The present invention improves the structure of the rotor and the structure of the stator to enable lightweight and miniaturization while excellent assembly of the parts to significantly reduce the manufacturing cost to reduce the economic burden of the user while increasing the external competitiveness Has an effect.

The present invention provides a new type of motor while improving the quality and durability of the motor by increasing the efficiency of the motor by increasing the efficiency by increasing the efficiency by increasing the magnetic force while miniaturizing the motor to increase the choice of users It is an invention having various effects such as being broadened.

1 is a perspective view of an exploded state showing a motor using a permanent magnet to which the technique of the present invention is applied.
Figure 2 is a perspective view extracting the rotor and the permanent magnet of the motor using a permanent magnet applied technology of the present invention.
Figure 3 is a perspective view showing a coupled state of the motor using a permanent magnet applied technology of the present invention.
Figure 4 is a broken perspective view taken from an important part showing a motor using a permanent magnet to which the technique of the present invention is applied.
5 is a cross-sectional view taken along the line A-A showing a motor using a permanent magnet to which the technique of the present invention is applied.
6 is a cross-sectional view taken along line B-B of a motor using a permanent magnet to which the technique of the present invention is applied.
7 is a simplified configuration diagram of a general motor to which the prior art is applied.

Hereinafter, with reference to the accompanying drawings will be described a preferred configuration and operation of the present invention for achieving the above object.

1 is a perspective view of an exploded state showing a motor using a permanent magnet to which the technique of the present invention is applied, FIG. 2 is a perspective view of a rotor and a permanent magnet of a motor using a permanent magnet to which the technique of the present invention is applied, and FIG. 4 is a perspective view of a coupled state showing a motor using a permanent magnet to which the technique of the present invention is applied, FIG. 4 is an exploded perspective view showing an important part showing a motor using a permanent magnet to which the technique of the present invention is applied, and FIG. A-A cross-sectional view showing a motor using a permanent magnet, Figure 6 is a cross-sectional view taken along the line B-B showing a motor using a permanent magnet to which the technology of the present invention is applied as follows.

Motor 100 using a permanent magnet to which the technology of the present invention is applied, the rotor 110 is located in the axial center direction inside the housing 101 to form a magnetic force while the rotor magnetic field, and the rotor 110 of the It is largely composed of a stator 130 located at the front and rear to form a magnetic force, attractive force and repulsive force of the rotor 110 to allow the rotor 110 to rotate.

The rotor 110 is a rotor core having a substantially I shape (exactly, I lying down) connected to the square or rectangular front plate 111 and the rear plate 112 by a bridge 113 made of a conductive metal plate. 114 is provided.

The coil coil 115 formed in the bridge 113 connecting the front and rear plates 111 and 112 is wound with a rotor coil 116 for forming a magnetic field by applying current.

The rotor coil 116 wound around the rotor core 114 is arranged in a plurality of cylinders to combine the core holding plate 117 of the disc shape in front and rear, protruding to the edge of the core holding plate 117 By the retaining pins 118, the rotor cores 114 can maintain a predetermined interval without being in close contact with each other.

Shaft body 119 is configured by coupling the shaft 119 to the center of the shaft of the core holding plate 117, the shaft 119 is provided in a cylindrical shape in the center to the core holding plate 117 is in close contact. And a front stem 121 and a rear stem 122 protruding to a diameter smaller than the diameter of the shaft body 120 on both sides of the shaft body 120.

Since the fixing of the rotor core 114 and the retaining pin 118 and the shaft body 120 may be performed in various ways, such as caulking, welding, brazing coupling well known in the industry, the present invention does not specify any one method. Do not.

It is apparent that the core retaining plate 117 and the front and rear stems 121 and 122 may be variously implemented, such as well-known key coupling and welding coupling, and the core retaining plate 117 may include a rotor coil ( It will be apparent that a connection hole for connecting the brush 116 and the brush 119 to the shaft 119 and the lead wire is formed.

In the present invention, the number of the rotor cores 114 is arranged in a cylindrical shape. However, the number of the rotor cores 114 is also exemplary and is not intended to limit the number.

The stator 130 is provided with a disc shaped stator body 133 formed with a bearing groove 132 to maintain the front and rear stems 121 and 122 as bearings 131 at the center thereof.

The permanent magnet housing 134 is formed at the edge of the stator body 133 so as to protrude in the direction of the rotor 110 to accommodate the permanent magnet, and the permanent magnet housing 134 has a number of rotor cores 114. By embedding the same number of permanent magnets 135 to form a magnetic field and attraction force and repulsive force generated in the rotor 110.

The permanent magnet 135 has a receiving groove maintaining a width wider than the thickness of the front and rear plates 111 and 112 to accommodate the front and rear plates 111 and 112 of the rotor core 114 constituting the rotor 100. 136, and having the upper rim 137 and the lower rim 138 on both sides of the receiving groove 136 and connected by a connecting rim 139 to have a roughly c shape, the number of the rotor core 114 It will be obvious that the N and S poles are alternately arranged while being fixed by arranging the same number.

Looking at the operating state of the motor 100 using a permanent magnet applied technology of the present invention as described above are as follows.

When external power is applied through the connector and the brush, electric current flows in the rotor coil 116 constituting the rotor 110, and a magnetic field is formed while a rotating magnetic field is formed around the rotor 110. The magnetic force and stator 130 As the rotor 110 is rotated by the action of the attraction force and the repulsive force formed between the shafts 119 constituting the rotor 110 can be driven.

In the present invention, since the stator 130 is held in the housing 101, and the rotor 110 is held in the stator 130, the rotor 110 rotates from the stator 130, so that the rotating shaft The power of 119 will be available.

In particular, the outer surface of the permanent magnet housing 134 constituting the stator 130 is directly connected to the housing 101, and the shaft 119 constituting the rotor 110 in the center position of the stator body 133 of the disc shape Since the bearing groove 132 is formed via the bearing 131 to maintain the shaft 119 and the rotor 110 does not interfere with the rotation.

In addition, the front and rear plates 111 and 112 of the rotor core 114 constituting the rotor 110 are inserted into the accommodating groove 136 of the permanent magnet 135 coupled to the permanent magnet housing 134 so as not to be spaced apart from each other. Since the current is applied to the rotor coil 116 wound on the bridge 113 to generate a rotating magnetic field in the rotor 113, the permanent magnet 135 housing the front and rear plates 111 and 112. The rotor 110 can be rotated from the stator 130 fixed to the housing 101 by the action of the attraction force and the repulsive force together with the magnetic force.

Since the motor 100 exhibits rotational force as described above, since it is a well-known technical content, a detailed description thereof will be omitted and the advantages of the motor 100 having the configuration of the present invention will be described as follows.

According to the present invention, when a current is applied to the rotor coil 116, a rotor magnetic field is formed in the rotor core 114. In this process, the portion of the bridge 113 in which the rotor coil 114 is wound, and the bridge 113 and The magnetic force of the front and rear plates 111 and 112 except for the inner portion of the front and rear plates 111 and 112 to be connected can be used, so that about 70% of the rotor field formed in the rotor core 114 can be used. do.

In addition, since the permanent magnet 135 has a configuration in which the front and rear plates 111 and 112 are accommodated, the magnetic force is increased together with the rotating magnetic fields of the front and rear plates 111 and 112. Compared with this, high efficiency and high output can be generated.

Incidentally, the rotor 110 is arranged in a cylindrical shape with the I-shaped rotor core 114 in a cylindrical shape to maintain a structure in which a permanent magnet 135 is disposed on both sides of the rotor core 114. Compared with the motor, the weight is lighter.

In addition, even when the rotor coil is wound on the rotor core, general parallel winding is possible, thus eliminating the need for a dedicated winding device by winding in the bobbin shape, and reducing the number of related components constituting the motor and simplifying assembly. This can greatly reduce the cost.

It is easy to reduce and increase its size according to a place to be installed or a part or device to be used, and it is possible to reduce the weight and increase the output compared to a general motor of the same standard.

100; Motor using permanent magnet
101; housing
110; Rotor
114; Rotor core
116; Rotor coil
117; Core Maintenance Plate
118; Retaining pin
119; shaft
130; Stator
133; Stator Body
134; Permanent Magnet Housing
135; Permanent magnet

Claims (4)

A rotor core 114 having a metal plate material connected between the front plate 111 and the rear plate 112 of a square or rectangular shape by a bridge 113; A rotor coil 116 wound around the coil space 115 formed in the bridge 113 connecting the front and rear plates 111 and 112 to form a magnetic field; A core retaining plate 117 having a disc shape in which the rotor coils 116 are wound and arranged in a cylindrical shape and coupled to front and rear sides thereof; A retaining pin 118 protruding from an edge of the core retaining plate 117 to keep each rotor core 114 spaced apart; A rotor 110 including a shaft 119 coupled to an axis center of the core holding plate 117 and positioned in an axial center direction of the housing 101 to form a magnetic force while a rotating magnetic field is formed;
A stator body 133 of a disc shape having a bearing groove 132 formed in the center to maintain the front and rear stems 121 and 122 as a bearing 131; A permanent magnet housing 134 formed to protrude in the direction of the rotor 110 at the edge of the stator body 133; The rotor 110 includes a permanent magnet 135 embedded in the permanent magnet housing 134 to form a magnetic field and attraction force and repulsive force generated in the rotor 110 so that the rotor 110 can rotate. A stator 130 held by the housing 101;
The permanent magnet 135 is inserted into the front and rear plates 111 and 112 of the rotor core 114 constituting the rotor 100 in a c-shape to arrange and fix the same number as the number of the rotor cores 114, N. A motor using a permanent magnet, characterized in that the pole and the S pole arranged alternately. delete delete The method of claim 1;
The permanent magnet 135 is a receiving groove maintaining a width wider than the thickness of the front and rear plates 111 and 112 to accommodate the front and rear plates 111 and 112 of the rotor core 114 constituting the rotor 100. 136, the upper rim 137 and the lower rim 138 formed on both sides of the receiving groove 136, and the connecting rim 139 for connecting the upper and lower rim 137, 138 Motor using a permanent magnet, characterized in that.

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