Motor

Abstract

The present invention may provide a motor comprising: a stator core; an insulator coupled to the stator core; and a first terminal and a second terminal coupled to the insulator, wherein the stator core comprises a yoke and a tooth protruding from the yoke, and the insulator comprises a body disposed on the tooth and a seating portion extending from the body and disposed on the yoke, and the seating portion comprises a base and first to third partitions extending from the base, wherein the first terminal is disposed between the first partition and the second partition, and the second terminal is disposed between the second partition and the third partition.

Description

Technology Field

[0001] The example relates to a motor. Background Technology

[0002] The motor includes a rotor and a stator. Coils are wound around the stator. The terminals of the coils wound on the stator can be connected to a busbar. The busbar can be positioned on the upper side of the stator.

[0003] The busbar includes a busbar body and a terminal. The terminal can be electrically connected to the connecting end of the coil. The busbar body is made of plastic resin and is an annular member. The busbar body may be a molded member formed by injection molding together with the terminal.

[0004] However, these busbars have the inconvenience of requiring positional alignment with the stator. In other words, the connection ends of the busbar terminals and the ends of the coils wound on the stator must be aligned. Furthermore, unlike insulators, the busbar's support structure is weak, posing a high risk of movement due to external vibrations or forces. Additionally, since the busbar body is constructed as a separate component, the number of parts increases, leading to longer assembly processes and difficulties in management. The problem to be solved

[0005] Accordingly, the embodiment aims to solve the aforementioned problem by providing a motor capable of connecting coils wound on a stator to an external power source without a busbar body.

[0006] The problems that the present invention aims to solve are not limited to those mentioned above, and other problems not mentioned herein will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] An embodiment may provide a motor comprising a stator core, an insulator coupled to the stator core, and a first terminal and a second terminal coupled to the insulator, wherein the stator core comprises a yoke and a tooth protruding from the yoke, and the insulator comprises a body disposed on the tooth and a seating portion extending from the body and disposed on the yoke, and the seating portion comprises a base and first to third partitions extending from the base, wherein the first terminal is disposed between the first partition and the second partition, and the second terminal is disposed between the second partition and the third partition.

[0008] Preferably, the first terminal includes a body and a terminal portion extending from the body, and the terminal portion of the first terminal may extend in the direction of the body of the insulator.

[0009] Preferably, the first partition wall may include a groove that is coupled to the terminal portion of the first terminal.

[0010] Preferably, the mounting portion includes a fourth partition and a fifth partition extending from the base, a third terminal disposed between the third partition and the fourth partition, and a fourth terminal disposed between the fourth partition and the fifth partition, and the first to fourth terminals may include a body and a terminal portion extending from the body in the direction of the body of the insulator.

[0011] Preferably, the heights of the first to fifth partitions may be the same relative to the upper surface of the base.

[0012] Preferably, the heights of the upper surface of the base on which the first to fifth partitions are formed may differ from each other with respect to the lower surface of the base.

[0013] Preferably, the body and terminal portion of the first to fourth terminals may have different heights with respect to the upper surface of the base.

[0014] Preferably, the height of the upper surface of the base where the fifth bulkhead is formed, relative to the lower surface of the base, may be greater than the height of the upper surface of the base where the first bulkhead is formed.

[0015] Preferably, the first partition wall may include a groove that engages with the terminal portion of the first terminal, the second partition wall may include a groove that engages with the terminal portion of the second terminal, the third partition wall may include a groove that engages with the terminal portion of the third terminal, and the fourth partition wall may include a groove that engages with the terminal portion of the fourth terminal.

[0016] Preferably, the first partition is positioned closer to the body of the insulator than the fifth partition, and the first terminal may be a neutral terminal.

[0017] Preferably, at least one of the groove of the first bulkhead, the groove of the second bulkhead, the groove of the third bulkhead, and the groove of the fourth bulkhead may not overlap radially with respect to the center of the stator core.

[0018] Preferably, the groove of the second bulkhead, the groove of the third bulkhead, and the groove of the fourth bulkhead may overlap radially with respect to the center of the stator core.

[0019] An embodiment comprises a stator core, an insulator coupled to the stator core, a coil disposed on the insulator, and a terminal portion coupled to the insulator, wherein the insulator comprises a body on which the coil is wound and a seating portion extending from the body on which the terminal portion is disposed, and the terminal portion comprises a top terminal and a neutral terminal, wherein the top terminal and the neutral terminal are spaced apart from each other and disposed on the seating portion, and one end of the coil may be connected to the top terminal and the other end of the coil may be connected to the neutral terminal.

[0020] Preferably, the neutral terminal may be positioned closer to the body of the insulator than the upper terminal.

[0021] Preferably, the upper terminal and the neutral terminal include a body and a terminal portion extending from the body and coupled to the coil, and the radial length of the terminal portion of the upper terminal may be smaller than the radial length of the terminal portion of the neutral terminal.

[0022] An embodiment may provide a motor comprising a stator core, an insulator coupled to the stator core, a coil disposed on the insulator, and a terminal portion coupled to the insulator, wherein the insulator comprises a body on which the coil is wound and a seating portion extending from the body on which the terminal portion is disposed, wherein the terminal portion comprises a first terminal and a second terminal, and the seating portion comprises a first groove on which the first terminal is disposed and a second groove on which the second terminal is disposed, and wherein the heights of the bottom surfaces of the first groove and the second groove are different with respect to the bottom surface of the seating portion. Effects of the invention

[0023] According to the embodiment, there is an advantage in that the coils wound on the stator can be connected to an external power source without a busbar body.

[0024] According to the embodiment, there is an advantage in that the connection end of the coil wound on the stator and the terminal connecting the coil are easily aligned.

[0025] According to the embodiment, removing the busbar body reduces the number of parts and offers the advantage of easy assembly and management. Brief explanation of the drawing

[0026] FIG. 1 is a drawing illustrating a motor according to an embodiment, FIG. 2 is a drawing illustrating a stator core and an insulator, FIG. 3 is a drawing illustrating an insulator according to a first embodiment, FIGS. 4 and FIGS. 5 are side views of the insulator mounting portion, FIG. 6 is a drawing showing a terminal mounted on an insulator, FIG. 7 is an enlarged view of A in FIG. 6. FIG. 8 is an enlarged view of B in FIG. 6. FIG. 9 is an enlarged view of C in FIG. 6. FIG. 10 is a side view of the seating portion in the state of FIG. 7, FIG. 11 is a drawing illustrating an insulator according to a second embodiment, FIG. 12 is a side view of the seating portion of the insulator illustrated in FIG. 11, FIG. 13 is a drawing showing the state in which the first terminal and the fourth terminal are combined in the seating portion of the insulator illustrated in FIG. 11. FIG. 14 is a side view of a seating portion in which the upper surface of the base is arranged in a stepped manner. Specific details for implementing the invention

[0027] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[0028] However, the technical concept of the present invention is not limited to some of the described embodiments but can be implemented in various different forms, and within the scope of the technical concept of the present invention, one or more of the components among the embodiments may be selectively combined or substituted.

[0029] In addition, terms used in the embodiments of the present invention (including technical and scientific terms) may be interpreted in a sense that is generally understood by those skilled in the art to which the present invention belongs, unless explicitly and specifically defined otherwise. Terms that are commonly used, such as terms defined in advance, may be interpreted in consideration of their meaning in the context of the relevant technology.

[0030] Furthermore, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

[0031] In this specification, the singular form may include the plural form unless specifically stated otherwise in the text, and when described as “at least one of A and B, C (or more than one of them),” it may include one or more of all combinations that can be formed from A, B, and C.

[0032] In addition, terms such as first, second, A, B, (a), (b), etc. may be used when describing the components of the embodiments of the present invention.

[0033] These terms are intended merely to distinguish a component from other components and are not limited by the nature, order, sequence, etc., of the said component.

[0034] And, where it is stated that a component is 'connected', 'combined', or 'joined' to another component, this may include not only cases where the component is directly connected, combined, or joined to the other component, but also cases where it is 'connected', 'combined', or 'joined' due to another component located between the component and the other component.

[0035] Furthermore, when described as being formed or placed on the “top or bottom” of each component, “top or bottom” includes not only cases where two components are in direct contact with each other, but also cases where one or more other components are formed or placed between the two components. Additionally, when expressed as “top or bottom,” it may include the meaning of a downward direction as well as an upward direction relative to a single component.

[0036] FIG. 1 is a drawing illustrating a motor according to an embodiment.

[0037] Referring to FIG. 1, a motor according to an embodiment may include a shaft (10), a rotor (20), a stator (30), and a housing (1). Hereinafter, "inner side" refers to the direction from the housing (1) toward the shaft (10), which is the center of the motor, and "outer side" refers to the opposite direction of the inner side, which is the direction from the shaft (10) toward the housing (1). Additionally, the circumferential direction or the radial direction below is each based on the axis center.

[0038] The shaft (10) can be coupled with the rotor (20). When an electromagnetic interaction occurs between the rotor (20) and the stator (30) through the supply of current, the rotor (20) rotates and the shaft (10) rotates in conjunction with it.

[0039] The rotor (20) rotates through electrical interaction with the stator (30). The rotor (20) can be positioned corresponding to the stator (30) and can be positioned inside. The rotor (20) may include a magnet.

[0040] The stator (30) is positioned on the outside of the rotor (20). The stator (30) may include a stator core (100), an insulator (200), and a coil (300). The insulator (200) is mounted on the stator core (100). The coil (300) may be wound around the insulator (200). The insulator (200) is positioned between the coil (300) and the stator core (100) to electrically insulate the stator core (100) and the coil (300) from each other. The coil (300) causes electrical interaction with the magnet of the rotor (20).

[0041] FIG. 2 is a drawing illustrating a stator core (100) and an insulator (200).

[0042] Referring to FIG. 2, the insulator (200) may include an upper insulator (200A) and a lower insulator (200B). The upper insulator (200A) may be positioned on one side of the stator core (100). The lower insulator (200B) may be positioned on the other side of the stator core (100). The upper insulator (200A) and the lower insulator (200B) may have the same shape and size. Hereinafter, the characteristics of the insulator (200) will be described based on the upper insulator (200A).

[0043] The stator core (100) may include a yoke (110) and a tooth (120). The tooth (120) may protrude from the inner surface of the yoke (110). There may be multiple teeth (120). The number of teeth (120) may be varied in accordance with the number of magnets. The stator core (100) may be formed by combining multiple segmented cores that include such a yoke (110) and a tooth (120).

[0044] FIG. 3 is a drawing illustrating an insulator (200) according to a first embodiment.

[0045] Referring to FIG. 3, the insulator (200) is not only wound with a coil (300) but also has terminals (40, 50, 60, 70) connected to the coil (300) seated on it. The terminals (40, 50, 60, 70) are seated on the insulator (200) without a busbar body. Such an insulator (200) may include a body (210) and a seating portion (220). The body (210) is where the coil (300) is wound and is positioned on the tooth (120) of the stator core (100). The seating portion (220) extends outward from the body (210). The seating portion (220) is positioned on the yoke (110) of the stator core (100). The seating portion (220) is where the terminals (40, 50, 60, 70) are seated.

[0046] The mounting portion (220) may include a base (226) and partitions (221, 222, 223, 224, 225). The partitions (221, 222, 223, 224, 225) may include a first partition (221), a second partition (222), a third partition (223), a fourth partition (224), and a fifth partition (225) in order from the inside to the outside. Accordingly, the first partition (221), the second partition (222), the third partition (223), the fourth partition (224), and the fifth partition (225) may be positioned close to the body (210) of the insulator (200) in that order.

[0047] The first partition (221) to the fifth partition (225) each protrude from the base (226). The first partition (221) to the fifth partition (225) may be spaced apart.

[0048] A groove (221a) is disposed in the first bulkhead (221). The groove (221a) may be formed concavely at the top of the first bulkhead (221). Additionally, the groove (221a) may be disposed penetrating the inner and outer surfaces of the first bulkhead (221). Multiple such grooves (221a) may be disposed.

[0049] A groove (221a) is disposed in the second bulkhead (222). The groove (221a) may be formed concavely at the top of the second bulkhead (222). Additionally, the groove (221a) may be disposed penetrating the inner and outer surfaces of the second bulkhead (222). Multiple such grooves (221a) may be disposed.

[0050] A groove (222a) is provided in the third bulkhead (223). The groove (222a) may be formed concavely at the top of the third bulkhead (223). Additionally, the groove (222a) may be provided penetrating the inner and outer surfaces of the third bulkhead (223). Multiple such grooves (222a) may be provided.

[0051] A groove (223a) is disposed in the fourth bulkhead (224). The groove (223a) may be formed concavely at the top of the fourth bulkhead (224). Additionally, the groove (223a) may be disposed penetrating the inner and outer surfaces of the fourth bulkhead (224). Multiple such grooves (223a) may be disposed.

[0052] A groove (224a) is disposed in the fifth bulkhead (225). The groove (224a) may be formed concavely at the top of the fifth bulkhead (225). Additionally, the groove (224a) may be disposed penetrating the inner and outer surfaces of the fifth bulkhead (225). Multiple such grooves (224a) may be disposed.

[0053] At least one of these grooves (221a, 222a, 223a, 224a) may be arranged so as not to overlap radially with respect to the center of the stator core (100). However, the groove (222a) of the second bulkhead (222), the groove (223a) of the third bulkhead (223), and the groove (224a) of the fourth bulkhead (224) may be arranged to overlap radially with respect to the center of the stator core (100).

[0054] FIGS. 4 and FIGS. 5 are side views of the seating portion (220) of the insulator (200).

[0055] Referring to FIG. 4, the height (P1) of the first bulkhead (221), the height (P2) of the second bulkhead (222), the height (P3) of the third bulkhead (223), the height (P4) of the fourth bulkhead (224), and the height (P5) of the fifth bulkhead (225) may all be the same. Here, the height (P1 to P5) may be the straight distance from the upper surface (226b) of the base (226) on which the bulkheads (221, 222, 223, 224, 225) protrude to the top of the bulkheads (221, 222, 223, 224, 225).

[0056] Referring to FIG. 5, the heights (H1 to H4) of the upper surface (226b) of the base (226) on which the first partition (221) to the fifth partition (225) are formed can all be different from each other based on the lower surface (226a) of the base (226). Accordingly, the upper surface (226b) of the base (226) on which the first partition (221) to the fifth partition (225) are formed can be arranged in a stepped manner.

[0057] A first groove (S1) is formed between the first partition (221) and the second partition (222). A first terminal (40) is placed in the first groove (S1). A second groove (S2) is formed between the second partition (222) and the third partition (223). A second terminal (50) is placed in the second groove (S2). A third groove (S3) is formed between the third partition (223) and the fourth partition (224). A third terminal (60) is placed in the third groove (S3). A fourth groove (S4) is formed between the third partition (223) and the fourth partition (224). A fourth terminal (70) is placed in the fourth groove (S4).

[0058] Meanwhile, the height of the bottom surface (H1) of the first groove (S1), the height of the bottom surface (H2) of the second groove (S2), the height of the bottom surface (H3) of the third groove (S3), and the height of the bottom surface (H4) of the fourth groove (S4) may differ from each other. Here, the height of the bottom surface (P1 to P4) of the first to fourth grooves (S1 to S4) refers to the height of the upper surface (226b) of the base (226) on which the first bulkhead (221) to the fifth bulkhead (225) are formed, based on the lower surface (226a) of the base (226).

[0059] FIG. 6 is a drawing showing terminals (40, 50, 60, 70) mounted on an insulator (200).

[0060] Referring to FIG. 6, a first terminal (40), a second terminal (50), a third terminal (60), and a fourth terminal (70) can each be installed on an insulator (200). The first terminal (40), the second terminal (50), and the third terminal (60) are phase terminals connected to the power supply of the U, V, and W phases, and the fourth terminal (70) may be a neutral terminal.

[0061] The terminals can be arranged in the order of the first terminal (40), second terminal (50), third terminal (60), and fourth terminal (70) from the inside to the outside.

[0062] The first terminal (40) includes a plurality of terminal portions (41), each terminal portion (41) extends inward and is located between the body (210) of an adjacent insulator (200).

[0063] The second terminal (50) includes a plurality of terminal portions (51), each terminal portion (51) extends inward and is located between the body (210) of the adjacent insulator (200).

[0064] The third terminal (60) includes a plurality of terminal portions (61), each terminal portion (61) extends inward and is located between the body (210) of the adjacent insulator (200).

[0065] The fourth terminal (70) includes a plurality of terminal portions (71), each terminal portion (71) extends inward and is located between the body (210) of the adjacent insulator (200).

[0066] Figure 7 is an enlarged view of A in Figure 6.

[0067] Referring to FIG. 7, a first terminal (40) is positioned between a first partition (221) and a second partition (222) based on one of the plurality of insulators (200). The terminal portion (41) of the first terminal (40) can be coupled with a groove (221a) of the first partition (221). The terminal portion (41) can penetrate the groove (221a) and be located inside the seating portion (220) of the insulator (200). The terminal portion (41) can be formed with its end bent in a direction away from the body (210) of the insulator (200).

[0068] Additionally, a fourth terminal (70) is positioned between the fourth partition (224) and the fifth partition (225). The terminal portion (71) of the fourth terminal (70) can be coupled with the groove (224a) of the fourth partition (224). The terminal portion (71) can penetrate the groove (224a) and be positioned inside the seating portion (220) of the insulator (200). The terminal portion (71) can be formed with its end bent in a direction away from the body (210) of the insulator (200).

[0069] Meanwhile, the radial length (R1) of the terminal portion (41) of the first terminal (40) may be greater than the radial length (R4) of the terminal portion (71) of the fourth terminal (70). This is because the fourth terminal (70) is positioned further outward than the first terminal (40).

[0070] The terminal portion (41) of the first terminal (40), which is the upper terminal, can be connected to one end (310) of the coil (300). And the terminal portion (71) of the fourth terminal (70), which is the neutral terminal, can be connected to the other end (320) of the coil (300).

[0071] Figure 8 is an enlarged view of B in Figure 6.

[0072] Referring to FIG. 8, the insulator (200) illustrated in FIG. 8 corresponds to the insulator (200) adjacent to the insulator (200) illustrated in FIG. 7. Based on the insulator (200) illustrated in FIG. 8, a second terminal (50) is positioned between the second partition (222) and the third partition (223). The terminal portion (51) of the second terminal (50) can be coupled with the groove (222a) of the second partition (222). The terminal portion (51) can penetrate the groove (222a) and be located inside the seating portion (220) of the insulator (200). The terminal portion (51) can be formed with its end bent in a direction away from the body (210) of the insulator (200).

[0073] Additionally, a fourth terminal (70) is positioned between the fourth partition (224) and the fifth partition (225). The terminal portion (71) of the fourth terminal (70) can be coupled with the groove (224a) of the fourth partition (224). The terminal portion (71) can penetrate the groove (224a) and be positioned inside the seating portion (220) of the insulator (200). The terminal portion (71) can be formed with its end bent in a direction away from the body (210) of the insulator (200).

[0074] Additionally, the first terminal (40) can be placed between the first partition (221) and the second partition (222) without a terminal portion (41).

[0075] Meanwhile, the radial length (R4) of the terminal portion (71) of the fourth terminal (70) may be greater than the radial length (R2) of the terminal portion (41) of the second terminal (50). This is because the fourth terminal (70) is positioned further outward than the second terminal (40). The radial length (R2) of the terminal portion (41) of the second terminal (50) is greater than the radial length (R1) of the terminal portion (41) of the first terminal (40). This is because the second terminal (50) is positioned further outward than the first terminal (40).

[0076] The terminal portion (51) of the second terminal (50), which is the upper terminal, can be connected to one end (310) of the coil (300). And the terminal portion (71) of the fourth terminal (70), which is the neutral terminal, can be connected to the other end (320) of the coil (300).

[0077] Figure 9 is an enlarged view of C in Figure 6.

[0078] Referring to FIG. 9, the insulator (200) illustrated in FIG. 9 corresponds to the insulator (200) adjacent to the insulator (200) illustrated in FIG. 7. Based on the insulator (200) illustrated in FIG. 9, a third terminal (60) is positioned between the third partition (223) and the fourth partition (224). The terminal portion (61) of the third terminal (60) can be coupled with the groove (223a) of the third partition (223). The terminal portion (61) can penetrate the groove (223a) and be located inside the seating portion (220) of the insulator (200). The terminal portion (61) can be formed with its end bent in a direction away from the body (210) of the insulator (200).

[0079] Additionally, a fourth terminal (70) is positioned between the fourth partition (224) and the fifth partition (225). The terminal portion (71) of the fourth terminal (70) can be coupled with the groove (224a) of the fourth partition (224). The terminal portion (71) can penetrate the groove (224a) and be positioned inside the seating portion (220) of the insulator (200). The terminal portion (71) can be formed with its end bent in a direction away from the body (210) of the insulator (200).

[0080] Meanwhile, the radial length (R4) of the terminal portion (71) of the fourth terminal (70) may be greater than the radial length (R3) of the terminal portion (61) of the third terminal (60). This is because the fourth terminal (70) is positioned further outward than the third terminal (60). The radial length (R3) of the terminal portion (61) of the third terminal (60) is greater than the radial length (R2) of the terminal portion (51) of the second terminal (50). This is because the third terminal (60) is positioned further outward than the second terminal (50).

[0081] The terminal portion (61) of the third terminal (60), which is the upper terminal, can be connected to one end (310) of the coil (300). And the terminal portion (71) of the fourth terminal (70), which is the neutral terminal, can be connected to the other end (320) of the coil (300).

[0082] FIG. 10 is a side view of the seating portion (220) in the state of FIG. 7.

[0083] Referring to FIG. 10, the height (K1) of the first terminal (40) and the height (K4) of the fourth terminal (70) are the same, but because the upper surface (226b) of the base (226) where the first partition (221) is located is positioned with a step difference from the upper surface (226b) of the base (226) where the fifth partition (225) is located, even if there is an area where the first terminal (40) and the fourth terminal (70) are positioned to overlap in the radial direction, the height of the terminal portion (41) of the first terminal (40) and the terminal portion (71) of the fourth terminal (70) are different.

[0084] FIG. 11 is a drawing illustrating an insulator (200) according to a second embodiment, and FIG. 12 is a side view of the seating portion (220) of the insulator (200) illustrated in FIG. 11.

[0085] Referring to FIG. 11 and FIG. 12, in the seating portion (220) of the insulator (200) according to the second embodiment, the position of the upper end (T1) of the first partition (221), the position of the upper end (T2) of the second partition (222), the position of the upper end (T3) of the third partition (223), the position of the upper end (T4) of the fourth partition (224), and the position of the upper end (T5) of the fifth partition (225) may all be the same. Additionally, with respect to the lower surface (226a) of the base (226), the heights (H1 to H4) of the upper surface (226b) of the base (226) on which the first partition (221) to the fifth partition (225) are formed may all be the same. Accordingly, the upper surface (226b) of the base (226) on which the first partition (221) to the fifth partition (225) are formed may be arranged on the same plane. Also, the height (P1) of the first partition (221), the height (P2) of the second partition (222), the height (P3) of the third partition (223), the height (P4) of the fourth partition (224), and the height (P5) of the fifth partition (225) may all be the same. Here, height may be the straight distance from the upper surface (226b) of the base (226) on which the partitions (221, 222, 223, 224, 225) protrude to the top (T1 to T5) of the partitions (221, 222, 223, 224, 225).

[0086] FIG. 13 is a drawing showing the state in which the first terminal (40) and the fourth terminal (70) are combined on the seating portion (220) of the insulator (200) shown in FIG. 11.

[0087] Referring to FIG. 13, since the heights of the upper surface (226b) of the base (226), on which the first bulkhead (221) to the fifth bulkhead (225) are formed, are all the same relative to the lower surface (226a) of the base (226), the first to fourth terminals (70) can have different heights relative to the upper surface (226b) of the base (226), thereby creating a step difference between the terminals (40, 50, 60, 70). For example, the height (K5) of the second terminal (50) may be greater than the height (K1) of the first terminal (40).

[0088] FIG. 14 is a side view of a seating portion (220) in which the upper surface (226b) of the base (226) is arranged in a stepped manner.

[0089] Referring to FIG. 14, while the position of the upper end (T1) of the first partition (221), the position of the upper end (T2) of the second partition (222), the position of the upper end (T3) of the third partition (223), the position of the upper end (T4) of the fourth partition (224), and the position of the upper end (T5) of the fifth partition (225) are all the same, the heights (H1 to H4) of the upper surface (226b) of the base (226) on which the first partition (221) to the fifth partition (225) are formed may differ from one another with respect to the lower surface (226a) of the base (226). Accordingly, even if the heights of the first to fourth terminals (70) are the same, a step difference between the terminals (40, 50, 60, 70) is realized.

[0090] For the above, a motor according to one preferred embodiment of the present invention has been specifically examined with reference to the attached drawings.

[0091] The aforementioned embodiment of the present invention should be understood as illustrative in all respects and not limiting, and the scope of the invention will be defined by the claims set forth below rather than by the detailed description above. Furthermore, the meaning and scope of these claims, as well as all modifications or variations derived from equivalents thereof, should be interpreted as being included within the scope of the invention. Explanation of the symbols

[0092] 10: Shaft 20: Rotor 30: Status 100: Status Core 110: York 120: Tooth 200: Insulator 210: Body 220: Settlement 221: 1st bulkhead 222: Second bulkhead 223: Third bulkhead 224: 4th bulkhead 225: 5th bulkhead

Claims

Claim 1 A motor comprising: a stator core; an insulator coupled to the stator core; and wherein the stator core comprises a yoke and a tooth protruding from the yoke, and the insulator comprises a body disposed on the tooth on which a coil is wound and a seating portion extending from the body and disposed on the yoke, wherein the seating portion has a plurality of grooves formed with axially formed inlets, a terminal is seated in the groove and connected to the coil, and the axial position of the groove located radially outward among the plurality of grooves is formed higher. Claim 2 In claim 1, the terminal comprises a body and a terminal portion extending from the body, and the terminal portion of the terminal extends in the direction of the body of the insulator. Claim 3 A motor according to claim 1, wherein the seating portion comprises a base and a plurality of partitions extending axially from the base and spaced radially apart to form the groove. Claim 4 In claim 3, the above bulkhead is a motor comprising a groove formed concavely at the top of the above bulkhead and coupled with the terminal. Claim 5 In claim 2, the end of the terminal is a motor located radially inside the seating portion. Claim 6 In Clause 3, the upper ends of the plurality of partitions are different motors. Claim 7 In claim 1, the axial positions of the terminal portions of the plurality of terminals are different from each other. Claim 8 In claim 4, the plurality of partitions include a first partition, a second partition, and a third partition that are radially spaced apart from each other, and the plurality of terminals include a first terminal located radially between the first partition and the second partition, and a second terminal located radially between the second partition and the third partition. Claim 9 In claim 8, the groove of the first bulkhead and the groove of the second bulkhead are positioned to overlap radially. Claim 10 In claim 3, the upper positions of the plurality of bulkheads are the same motor. Claim 11 A motor according to claim 10, wherein the upper position of the plurality of partitions is formed higher as they face outward with respect to the radial direction. Claim 12 In claim 4, the grooves of the plurality of partitions overlap radially with respect to the center of the stator core. Claim 13 A motor according to claim 1, wherein among the plurality of terminals, the upper terminal and the neutral terminal are spaced apart from each other and disposed in the seating portion, and one end of the coil is connected to the upper terminal and the other end of the coil is connected to the neutral terminal. Claim 14 In claim 13, the neutral terminal is positioned closer to the body of the insulator than the upper terminal. Claim 15 In claim 13, the motor comprises a body and a terminal portion extending from the body and coupled to the coil, wherein the radial length of the terminal portion of the upper terminal is smaller than the radial length of the terminal portion of the neutral terminal. Claim 16 delete

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