KR102554395B1 - Motor - Google Patents

Abstract

The present invention is a shaft; a rotor including a hole in which the shaft is disposed; A stator disposed outside the rotor; and a cover disposed on the stator, wherein the stator includes a stator core, an insulator disposed on the stator core, and a coil wound on the insulator, wherein the coil It includes a first terminal connected to, a second terminal disposed on the cover and connected to an external power source, and a third terminal connecting the first terminal and the second terminal, wherein the third terminal comprises the A motor fitted to the first terminal may be provided by penetrating from the upper side of the cover to the lower side.

Description

motor {Motor}

The embodiment relates to a motor.

A motor includes a rotor and a stator. A coil is wound on the stator. The coil is connected to an external power source through terminals. A cover containing these terminals is provided on the upper side of the stator. Holes penetrating the upper and lower surfaces of the cover are provided in the cover. The first terminal disposed on the cover and the second terminal connected to the coil are connected through a third terminal penetrating the hole of the cover. At this time, after the third terminal passes through the hole, the hole is blocked through a curing process after applying a sealing member.

however. This has a problem of causing an increase in the manufacturing process and manufacturing cost of the motor.

Therefore, the embodiment is intended to solve the above problems, and in connecting the terminals disposed on the cover and the terminals connected to the coil, providing a motor capable of reducing the manufacturing process and manufacturing cost is a task to be solved. .

The problem to be solved by the present invention is not limited to the above-mentioned problems, and other problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

The embodiment includes a shaft, a rotor including a hole in which the shaft is disposed, a stator disposed outside the rotor, and a cover disposed on the stator, wherein the stator includes a stator core and a stator core. A second terminal including an insulator disposed on the insulator and a coil wound on the insulator, including a first terminal connected to the coil and disposed on the cover to be connected to an external power source The first terminal and the second terminal And a third terminal for connecting, the third terminal may provide a motor that is fitted to the first terminal by penetrating from the upper side to the lower side of the cover.

Preferably, the first terminal is coupled to the insulator and may include a coupling portion at which an end of the third terminal is disposed.

Preferably, a part of the second terminal is connected to an external power source, another part of the second terminal is spaced apart from the upper surface of the cover, the cover includes a hole penetrating the upper and lower surfaces of the cover, , The third terminal may pass through the hole, contact the second terminal on the upper side of the upper surface of the cover, and contact the first terminal on the lower side of the lower surface of the cover.

Preferably, the size of the hole may correspond to the size of the horizontal section of the third terminal.

Preferably, the cover includes a boss portion protruding from the upper surface of the cover, the hole is disposed through the upper surface of the boss portion and the lower surface of the cover, and the boss portion includes a thermally fused portion disposed along a circumference of the hole. can include

Preferably, the second terminal may be disposed above the boss part.

Preferably, the first terminal includes a first body, a first connection end disposed at one end of the first body, and a second connection end disposed at the other end of the first body, The first body may be coupled to the insulator, the first connection end may be connected to the coil, and the second connection end may be connected to the third terminal.

Preferably, the second terminal is a second body and a third connection end disposed on one end of the second body. and a fourth connection end disposed at the other end of the second body, the second body disposed inside the cover, and the third connection end and the fourth connection end exposed to the outside of the cover, respectively. The third connection end may be connected to an external power source, and the fourth connection end may be connected to the third terminal.

Preferably, the third terminal is a third body and a fifth connection end disposed on one end of the third body. A sixth connection end disposed at the other end of the third body, the fifth connection end disposed below the cover, the sixth connection end disposed above the cover, and the fifth connection end disposed below the cover. The end may be connected to the first terminal, and the sixth connection end may be connected to the second terminal.

Preferably, the fifth connecting end has a width smaller than that of the third body, and a locking protrusion may be disposed thereon.

According to the embodiment, advantageous effects of reducing the manufacturing process and manufacturing cost are provided.

According to the embodiment, an advantageous effect capable of excluding the fusing process is provided.

1 is a cross-sectional view showing a motor according to an embodiment;
2 shows a first terminal, a second terminal and a third terminal disposed above the stator;
3 is a perspective view showing a first terminal, a second terminal, and a third terminal;
4 is an exploded view of a first terminal, a second terminal, and a third terminal;
5 is a view showing a modified example of a combination form of a third connection terminal and a cover;
6 is a view showing a modified example of a combination form of a third connection terminal and a cover;
7 is a view showing a boss portion disposed on the upper surface of the cover;
8 is a diagram illustrating a state in which holes are blocked through a fusing process.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. And the terms or words used in this specification and claims should not be construed as being limited to ordinary or dictionary meanings, and the inventor appropriately defines the concept of terms in order to explain his/her invention in the best way. Based on the principle that it can be done, it should be interpreted as meaning and concept consistent with the technical spirit of the present invention. And, in describing the present invention, detailed descriptions of related known technologies that may unnecessarily obscure the subject matter of the present invention will be omitted.

Terms including ordinal numbers such as second and first may be used to describe various components, but the components are not limited by the terms. These terms are only used for the purpose of distinguishing one component from another. For example, a second element may be termed a first element, and similarly, a first element may be termed a second element, without departing from the scope of the present invention. The terms and/or include any combination of a plurality of related recited items or any of a plurality of related recited items.

1 is a cross-sectional view showing a motor according to an embodiment.

Referring to FIG. 1 , a motor according to an embodiment may include a shaft 100, a rotor 200, a stator 300, and a cover 400.

Shaft 100 may be coupled to rotor 200 . When electromagnetic interaction occurs between the rotor 200 and the stator 300 through the supply of current, the rotor 200 rotates and the shaft 100 rotates in conjunction therewith.

The rotor 200 rotates through electrical interaction with the stator 300.

The rotor 200 may include a rotor core and a magnet. The rotor core may be implemented in a shape in which a plurality of plates in the form of circular thin steel plates are stacked or in the form of a single cylinder. A hole to which the shaft 100 is coupled may be formed in the center of the rotor core. The magnet may be attached to an outer circumferential surface of the rotor core. A plurality of magnets may be disposed along the circumference of the rotor core at regular intervals. Alternatively, one ring-shaped magnet may be attached to the rotor core.

A coil 330 may be wound around the stator 300 to cause electrical interaction with the rotor 200 . The specific configuration of the stator 300 for winding the coil is as follows. The stator 300 may include a stator core 310 including a plurality of teeth. The stator core 310 may be provided with an annular yoke portion, and may be provided with teeth on which a coil is wound in a central direction from the yoke. Teeth may be provided at regular intervals along the outer circumferential surface of the yoke portion. Meanwhile, the stator core 310 may be formed by stacking a plurality of plates in the form of thin steel plates. In addition, the stator core 310 may be formed by combining or connecting a plurality of split cores. The insulator 320 may be mounted on the teeth of the stator core 310 . The coil 330 may be wound around the insulator 320 .

The cover 400 may be disposed on the stator 300 . Cover 400 may include a bearing in the center.

FIG. 2 is a view showing a first terminal, a second terminal, and a third terminal disposed on a stator, and FIG. 3 is a perspective view showing the first terminal, the second terminal, and the third terminal.

Referring to FIGS. 2 and 3 , the first terminal 500 is disposed on the insulator 310 and serves to connect the coil 330 and the third terminal 700 . An outer guide of the insulator 310 may be provided with a coupling portion 321 for connection with the first terminal 500 .

4 is an exploded view of a first terminal, a second terminal, and a third terminal.

2 to 4 , the first terminal 500 may include a first body 510, a first connection end 520, and a second connection end 530. The first body 510 may include a support part 511 . The support part 511 may be disposed to branch downward from the first body 510 . The support part 511 may be plural. The support part 511 is inserted into the coupling part 321 of the insulator 320 . The first connection end 520 is disposed at one end of the first body 510 . The first connection end 520 may include a “U”-shaped bent connection terminal. A coil (330 in FIG. 2 ) is connected to the first connection end 520 by fusing. The second connection end 530 is connected to the other end of the first body 510 . The second connection end 530 may have a block shape having a certain height. A groove 531 may be disposed at the second connection end 530 . The third terminal 700 is inserted into the groove 531 .

The second terminal 600 is disposed on the cover 400 . The second terminal 600 is disposed above the first terminal 500 . The second terminal 600 is connected to an external power source and is connected to the third terminal 700 . The second terminal 600 may include a second body 610, a third connection end 620, and a fourth connection end 630. The second terminal 600 may be inserted and injected into the cover 400 and disposed. At this time, the second body 610 is disposed inside the cover 400, and the third connection end 620 and the fourth connection end 630 may be disposed to be exposed to the outside of the cover 4000, respectively. The third connection end 620 may be branched upward from the second body 610. The third connection end 620 is a portion to which an external power source is connected. The fourth connection end 630 is the second body. It extends from the side of the 610. The fourth connection end 630 may be disposed with an end bent in an “L” shape, and the lower surface 631 of the fourth connection end 630 is the second body ( 610 may be disposed higher than the lower surface 611. This is to secure a separation space between the lower surface 631 of the fourth connection end 630 and the upper surface of the cover 400.

The third terminal 700 is disposed between the first terminal 500 and the second terminal 600 . The third terminal 700 serves to connect the first terminal 500 and the second terminal 600 . The third terminal 700 may include a third body 710, a fifth connection end 720, and a sixth connection end 730. The fifth connection end 720 is disposed at one end of the third body 710. The fifth connection end 720 is fitted into the groove 531 of the first terminal 500 . The fifth connection end 720 is formed to be narrower in width than the third body 710, and a plurality of protrusions 721 may be disposed. The sixth connection end 730 is disposed at the other end of the third body 710. The sixth connection end 730 makes surface contact with the fourth connection end 630 of the second terminal 600 . To facilitate contact with the fourth connection end 630 , a portion of the sixth connection end 730 may protrude toward the fourth connection end 630 . The third terminal 700 is disposed through the cover 400 . At this time, the fifth connection end 720 is exposed to the lower side of the cover 400 . And the sixth connection end 730 is exposed on the upper side of the cover 400 .

Although the third terminal 700 and the second terminal 600 are illustrated as separate objects, the present invention is not limited thereto, and the third terminal 700 and the second terminal 600 may be integrated.

The following modifications are exemplified according to the combination form of the third terminal 700 and the cover 400 .

5 is a view showing a modified example of a combination form of a third connection terminal and a cover.

Referring to FIG. 5 , in order to pass the third terminal 700 through, the third terminal 700 may be insert-injected into the cover 400 without forming a hole in the cover 400 . At this time, the fifth connection end 720 is exposed on the upper side of the cover 400, and the sixth connection end 730 is exposed on the lower side of the cover 400. As a result, a gap is eliminated at the boundary 401 between the third terminal 700 and the cover 400 . Accordingly, there is no need for a process or member for sealing the hole through which the third terminal 700 passes.

When the third terminal 700 and the second terminal 600 are separate objects, the sixth connection end 730 of the third terminal 700 and the fourth connection end 630 of the second terminal 600 are in contact. state In order to increase coupling, the sixth connection end 730 and the fourth connection end 630 may be fused and coupled.

FIG. 6 is a view showing a modified example of a combination of a third connection terminal and a cover, FIG. 7 is a view showing a boss portion disposed on the upper surface of the cover, and FIG. 8 is a view showing a state in which a hole is blocked through a fusing process. it is a drawing

Referring to FIGS. 6 to 8 , a hole 430 may be disposed in the cover 400 . The hole 430 is disposed through the upper and lower surfaces of the cover 400 . The third terminal 700 passes through the hole 430 . The size of the hole 430 is greater than the horizontal sectional area of the sixth connection end 730 of the third terminal 700 . Accordingly, a separation space as shown in P in FIG. 6 occurs between the boundary between the third terminal 700 and the hole 430 . This separation space (P) should be blocked. for teeth. As shown in FIG. 7 , a boss portion 420 is disposed on the cover 400 . The boss portion 420 protrudes from the upper surface 410 of the cover 400 to have a certain height. A hole 430 is disposed in the boss portion 420 . When fusing proceeds in a state where the sixth connection end 730 passing through the hole 430 and the fourth connection end 630 come into contact, heat generated during the fusing process is transferred to the upper portion of the boss portion 420 .

When heat is transferred to the upper portion of the boss portion 420 , a heat fusion portion 421 is generated around the hole 430 and the hole 430 is blocked. Therefore, a separate sealing process or sealing member for blocking the hole 430 is not required.

In the above, the motor according to one preferred embodiment of the present invention has been examined in detail with reference to the accompanying drawings.

One embodiment of the present invention described above should be understood as illustrative in all respects and not limiting, and the scope of the present invention will be indicated by the claims to be described later rather than the detailed description above. And it should be construed that all changes or transformable forms derived from the meaning and scope of the claims as well as their equivalent concepts are included in the scope of the present invention.

100: shaft
200: rotor
300: stator
310: stator core
320: insulator
330: coil
400: cover
410: upper surface
420: boss part
430: hall
500: first terminal
510: first body
520: first connection end
530: second connection end
600: second terminal
610: second body
620: third connection end
630: fourth connection end
700: third terminal
710 third body
720: fifth connection end
730: sixth connection end

Claims (10)

shaft;
a rotor including a hole in which the shaft is disposed;
A stator disposed outside the rotor; And
Including a cover disposed on the stator,
The stator is
A stator core, an insulator disposed on the stator core, and a coil wound on the insulator,
Including a first terminal connected to the coil,
A second terminal disposed on the cover and connected to an external power source;
a third terminal connecting the first terminal and the second terminal;
The third terminal penetrates from the top to the bottom of the cover and is fitted to the first terminal, a part of the second terminal is connected to an external power source, and another part of the second terminal is spaced apart from the top surface of the cover. The cover includes a hole penetrating upper and lower surfaces of the cover, the third terminal passes through the hole, and contacts the second terminal at the upper side of the upper surface of the cover, and the lower surface of the cover is in contact with the first terminal at the lower side of the hole, the size of the hole corresponds to the size of the horizontal section of the third terminal, the cover includes a boss protruding from the upper surface of the cover, and the hole is the upper surface of the boss And disposed through the lower surface of the cover, The motor including a thermal fusion portion disposed along the circumference of the boss portion of the hole. According to claim 1,
The first terminal is coupled to the insulator, and the motor includes a coupling portion in which an end of the third terminal is disposed. delete delete delete According to claim 1,
The second terminal is a motor disposed on the upper side of the boss part. According to claim 1,
The first terminal includes a first body, a first connection end disposed at one end of the first body, and a second connection end disposed at the other end of the first body,
The first body is coupled to the insulator, the first connection end is connected to the coil, and the second connection end is connected to the third terminal. According to claim 1,
The second terminal is a second body and a third connection end disposed at one end of the second body. And a fourth connection end disposed at the other end of the second body,
The second body is disposed inside the cover, and the third connection end and the fourth connection end are disposed to be exposed to the outside of the cover, respectively.
The third connection end is connected to an external power source, and the fourth connection end is connected to the third terminal. According to claim 1,
The third terminal is a third body and a fifth connection end disposed at one end of the third body. And a sixth connection end disposed at the other end of the third body,
The fifth connection end is disposed on the lower side of the cover, and the sixth connection end is disposed on the upper side of the cover,
The fifth connection end is connected to the first terminal, and the sixth connection end is connected to a second terminal. According to claim 9,
The fifth connection end has a width smaller than the width of the third body, and a motor in which a locking protrusion is disposed.

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