KR101872790B1 - Terminal Structure of Motor - Google Patents

Abstract

The present invention improves the structure of the terminal structure that connects the coils supplying electric power to make electrical connection, thereby eliminating the inability of the coil to be wound on a part of the interference area of the core part interfered between the coil winding machine and the terminal structure, In addition to the assembling operation of the terminal structure, the coil and the terminal structure can be easily connected to each other. The body is vertically disposed. The body is connected to the body in a direction intersecting the body, And a joint fixing portion provided at a lower end of the body portion and inserted and coupled to an upper surface of the insulator, wherein the coil mounting portion is integral with the body portion, and the coil mounting portion is formed integrally with the coil mounting portion A wedge groove is formed for fixing the coil, And the coil mounting portion including the connecting end is formed in a curved surface structure having a curvature along an arc of an imaginary circle so as to be disposed in a state deviated from the tip of the insulator, A structure in which any one of a structure having a different width in the front and rear direction of the coil mounting portion or a structure having a narrowed width in a direction from the upper end to the lower end of the wedge groove so as to be coupled and fixed in a coil- Is provided.

Description

[0001] The present invention relates to a terminal structure of a motor,

[0001] The present invention relates to a terminal structure of a motor, and more particularly, to a new type of terminal structure in which a coil for supplying electric power is connected to achieve electrical connection, thereby improving a part of the core part interfering between the coil winding machine and the terminal structure The coil can not be wound around the interference region, and the connection between the coil and the terminal structure can be easily performed as well as the assembly work of the terminal structure.

Generally, a motor is provided with a housing having a cylindrical shape, a stator coupled to the housing in such a manner as to be received therein, and a rotor rotatable by electromagnetic interaction between the stator and the stator at the center of the stator .

The motor is equipped with a PCB (Printed Circuit Board), and a terminal assembly is connected to the PCB to receive the current applied to the PCB and operate the motor.

A conventional motor structure will now be described with reference to the drawings.

1A and 1B, the stator 24 includes an assembly of a stator core 10 and an insulator 12. The stator 24 is fixedly coupled to an upper end of the insulator 12, The terminal structure 14 is provided.

Specifically, the terminal structure 14 includes a terminal body 16 fixed around the upper end surface of the insulator 12, and a stator core 16 connected integrally with the stator core 16, And a plurality of terminal terminals 18 which are bent and arranged inside the terminal terminals 10.

The coil 22 wound around the core portion 20 of the stator core 10 is electrically connected to the terminal terminal 18 through soldering.

The structure of the terminal structure 14 has a structure in which the terminal terminal 18 is bent and disposed inward of the stator core 10 as described above. In other words, as shown in FIG. 1B, The coil winding unit 22 is disposed on the upper portion of the core unit 20 on which the coil winding unit 22 is wound so that interference occurs between the coil winding unit and the terminal terminal 18 when the coil 22 using the coil winding unit There is a problem that the coil 22 can not be wound in the interference region P of the core portion 20.

When the coil 22 can not be wound in the interference region P of the core portion 20 due to the interference between the terminal terminal 18 and the coil winding device as described above, There is a problem that the performance of the motor is lowered by the amount of winding that is not wound.

In addition, when the coil 22 is electrically connected to the terminal terminal 18, since it is necessary to connect the terminal 22 through the soldering operation, the number of workpieces is increased, resulting in a long operation time and reduced workability. There was a problem that I could not do.

The terminal structure 14 has a structure in which the terminal body 16 and the terminal terminal 18 are integrated and the coil 22 is soldered and connected to the terminal terminal 18. For example, There is a problem in that it is structurally difficult to partially repair the part of the terminal terminal 18. [

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a terminal structure for connecting a coil for supplying electric power, A terminal structure of a motor which can solve the problem that a coil is not wound on a part of the interference area of the core part interfering between the coil winding machine and the terminal structure and that can be easily connected between the coil and the terminal structure as well as assembling the terminal structure The purpose is to provide.

A coil mounting portion connected to the body portion in a direction intersecting the body portion and having a connecting end formed at an end thereof; The coil mounting portion is integrally formed with the body portion. A wedge groove is formed on the upper surface of the coil mounting portion to fix the coil to the mounting portion of the motor. And a coupling protrusion protruding from the coupling protrusions for reinforcing a coupling force and having a curved surface having a curvature along an arc of an imaginary circle so that the coil mounting portion including the coupling end can be disposed in a state deviating from the tip of the insulator And the wedge groove is formed in the coil mounting portion Before, any of the structure of the structure in which the width-to-back direction gradually narrow the width direction from the top to the bottom of the wedge groove or other structure may selectively achieve the object through the terminal structure of the motor to be formed.

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When the terminal structure of the motor according to the present invention is applied as described above, it is possible to solve the problem that the performance of the motor is deteriorated by winding the coil in the interference region of the core portion interfering between the coil winding device and the terminal structure.

In addition, when the terminal structure of the motor according to the present invention is used, it is possible to easily perform the electrical connection between the coil and the terminal structure as well as the assembling operation of the terminal structure, thereby improving the working efficiency and productivity. It is possible to expect an effect of selectively repairing the structure.

Figs. 1A and 1B show a state in which a terminal structure of a motor according to the related art is mounted on a motor, wherein Fig. 1A is a perspective view and Fig. 1B is a plan view.
FIGS. 2A and 2B show a state where a terminal structure of a motor according to a first embodiment of the present invention is mounted on a motor. FIG. 2A is a perspective view and FIG. 2B is a plan view.
FIGS. 3A and 3B show a terminal structure of a motor according to Embodiment 1 of the present invention, wherein FIG. 3A is a perspective view and FIG. 3B is a flat cross-sectional view.
FIGS. 4A and 4B show a terminal structure of a motor according to a second embodiment of the present invention, wherein FIG. 4A is a perspective view and FIG. 4B is a plan view.
FIGS. 5A and 5B show a terminal structure of a motor according to a second embodiment of the present invention, wherein FIG. 5A is a perspective view and FIG. 5B is a horizontal sectional view.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[Example 1]

FIGS. 2A and 2B illustrate a state in which a terminal structure of a motor according to a first embodiment of the present invention is mounted on a motor. FIGS. 2A and 2B are a perspective view and a plan view, respectively. 3A and 3B illustrate a terminal structure of a motor according to a first embodiment of the present invention. FIG. 3A is a perspective view, and FIG. 3B is a plan sectional view.

As shown in the drawings, the terminal structure 30 according to the first embodiment of the present invention includes a vertically disposed body portion 32 and a body portion 32 connected to a selected one of the one side or both sides of the body portion 32 A coil mounting portion 34 horizontally arranged in an elongated form and a joint fixing portion 36 formed to have a length at the lower end of the body portion 32.

Specifically, the coil mounting portion 34 is integrally formed with the body portion 32. Particularly, the coil mounting portion 34 having the connecting end 38 formed at the end thereof is connected to the stator 40, And is bent so as to be disposed outside the tip end of the base plate 28.

At the lower end of the body part 32, a coupling part 36 is formed to have a length so as to be inserted into the coupling groove 42 formed at a depth of the upper surface of the insulator 40. The engaging protrusions 44 protrude from the sides of the engaging and fixing part 36 so that when the engaging and fixing part 36 is inserted into the engaging groove 42, So that the terminal structure 30 is prevented from being separated from the terminal structure 30 as well as from being shaken due to vibration and impact.

On the other hand, a wedge groove 46 having a width different in width in the front and back direction is formed on the upper surface of the coil mounting portion 34 so that the coil 22 is stuck in the wedge groove 46 The fastening force is ensured by the provision of a fast and stable connection connection. However, the present invention is not necessarily limited to such a structure, and the present invention also includes a structure in which the wedge groove 46 is formed in a V-shape having a gradually narrower width from the upper end to the lower end.

When the engaging portion 36 of the terminal structure 30 having the above structure is coupled to the engaging groove 42 of the insulator 40, The coil mounting portion 34 completely deviates from the core portion 20 of the stator core 39 in which the coil 22 is wound so that the coil winding device It is possible to solve the problem that the coil can not be wound on the interference region of the core portion 20 due to the interference of the coil portion.

Accordingly, in the present invention, since the coil 22 is wound on the interference region P of the core portion 20 described in the background art, the performance of the motor can be prevented from deteriorating.

When the coil 22 is electrically connected to the body portion 32 of the terminal structure 30 and the coil mounting portion 34, the wedge groove 46 is fitted and fixed in a fitting manner, The work time can be remarkably shortened, thereby improving workability and productivity.

In addition, since the terminal structure 30 according to the present invention is an independent coupling type, it is possible to selectively replace the terminal structure 30, which is required to be replaced, thereby solving the problem raised in the background art.

When the connection of the coil 22 to the terminal structure 30 is completed with the winding of the coil 22 on the core portion 20 of the stator core 39, Is arranged outside the front end of the stator 28 and therefore the coil mounting portion 34 including the connecting end 38 is disposed so as to be disposed inside the tip end of the stator core 39, The housing is housed in the housing which forms the outer appearance of the motor, so that the housings can be accommodated in the housing without increasing the size of the housing for securing the inner diameter of the housing.

[Example 2]

The terminal structure 30 described in Embodiment 1 has a structure in which the coil mounting portion 34 is bent with an internal angle, but in Embodiment 2, a structure in which the coil mounting portion is formed as a curved surface is shown.

As shown in Figs. 4A to 5B, the coil mounting portion 52 of the terminal structure 50 is formed integrally with a side surface selected from one side or both side surfaces of the body portion 54, as in Embodiment 1 described above, Respectively. Particularly, the coil mounting portion 52 formed at the end portion including the connection end 56 has a curved surface R having a curvature along the arc S of the virtual circle so as to be disposed outside the front end of the stator 28 Respectively.

As described above, when the coil mounting portion 52 including the connection end 56 has a curved surface having a curved shape, for example, in order to improve the electrical conductivity, Cracking or peeling occurs in the treated plating layer at the bent portion when the coil mounting portion 52 is allowed to be placed inside the tip of the stator core 39 so as to be accommodated in the housing of the motor, However, in the case of Embodiment 2, since the coil mounting portion 52 has a curved structure, which is not a bending structure, cracking or peeling of the plating layer is not so severe as compared with the bending structure, so that the electrical conducting performance can be maintained .

The same components as those in the first embodiment are denoted by the same reference numerals and will not be described in order to avoid redundant description.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, But fall within the scope of the appended claims.

10, 39: stator core
12: Insulator
14, 30, 50: terminal structure
16: Terminal body
20: core part
22: Coil
24, 28:
32, 54:
34, 52: coil mounting portion
36:
38, 56: connection terminal
40: insulator
42: Coupling groove
44:
46: Wedge groove

Claims (4)

A coil mounting portion 52 connected to the body portion 54 in a direction intersecting with the body portion 54 and having a connecting end 56 at an end thereof; And a joint fixing portion (36) provided at the lower end of the body portion (54) and inserted and coupled to the upper surface of the insulator (40)
The coil mounting portion 52 is integrally formed with the body portion 54 and a wedge groove 46 is formed on the upper surface of the coil mounting portion 52 for fixing the coil 22, (36) is provided with a locking protrusion (44) protruding therefrom in order to strengthen the coupling force,
The coil mounting portion 52 including the connecting end 56 is formed of a curved surface having a curvature along the circular arc S of the imaginary circle so as to be disposed in a state deviating from the tip of the insulator 40 ,
The wedge grooves 46 are formed to have different widths in the front and rear direction of the coil mounting portion 52 so that the coils 22 can be engaged and fixed, And the width of the terminal structure is narrowed. delete delete delete

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