Stator, motor using the stator, and motor actuator

Abstract

To provide a stator, a motor, and a motor actuator capable of preventing deterioration in insulation of a conductive member even when dust or the like is deposited on a division part of a core cover configured to be dividable.SOLUTION: The stator 1 includes a core 10, an insulating member 20 that covers the core 10, a winding 30 wound around the insulating member 20, and a conductive member 40 that supplies driving power to the winding 30. The conductive member 40 is inserted into the insertion hole 23 of the insulating member 20 and connected to the coil end portion 31. The insulating member 20 is configured to be dividable, and a gap 25 is formed at a divided portion. An insulation auxiliary means is provided at a position corresponding to at least one gap 25 between the periphery of the insertion hole 23 and the conductive member 40.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to, for example, a stator, a motor, and a motor actuator. [Background technology]

[0002] Conventionally, there has been a motor including a stator and a rotor that is rotated by a magnetic field generated by the stator. Patent Document 1, for example, discloses a stator for such a motor, as shown in Fig. 13, in which a conductive member 240 that relays power supply to a winding 230 is inserted into a through-hole 223 formed in an insulating member 220, a winding end 231 is wound around one end of the conductive member 240, and the other end extends downward from the insulating member 220 to form a board connection portion 243. This configuration is said to facilitate connection of the winding 230 to a circuit board.

[0003] Furthermore, by providing a connecting portion 241 on the conductive member 240 and accommodating the connecting portion 241 in the accommodating groove 224 on the bottom surface of the insulating member, the conductive member 240 will not move unnecessarily even if a force is applied to the conductive member 240 in the axially upward direction (axial direction: up and down direction in FIG. 13 ). Therefore, it is said that a highly reliable connection by press-fit or the like can be achieved. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-023793 Summary of the Invention [Problem to be solved by the invention]

[0005] In the stator 200 shown in Patent Document 1, a core 210, which is a magnetic body, and a winding 230 are insulated by an insulating member 220. The insulating member 220 is configured to be separable into a first core cover 221 and a second core cover 222. In such a configuration, a gap 225 is formed at the position corresponding to the separation point. If dust or the like accumulates in the gap 225 around the through hole 223, there is a problem in that the insulation between the core 210 and a conductive member 240 inserted into the through hole 223 is reduced.

[0006] Therefore, the present invention provides a stator that can prevent the insulation properties of the conductive member inserted into the insulating member from being reduced even if dust or the like accumulates at the dividing points of the insulating member. The present invention also provides a motor and a motor actuator that utilize a stator having the above characteristics. [Means for solving the problem]

[0007] The following describes aspects of the present invention that have been made to solve the above problems. The components employed in each aspect described below can be employed in any combination possible. Furthermore, the aspects or technical features of the present invention are not limited to those described below, but can be recognized based on the entire specification and drawings, or on the inventive idea that can be grasped by a person skilled in the art from those descriptions.

[0008] One embodiment of the stator of the present invention comprises: The core and an insulating member covering the core; a winding wound on the insulating member; a conductive member for supplying driving power to the winding, The insulating member is configured to be separable at a separation portion, the insulating member has an insertion portion through which the conductive member is inserted, the conductive member is inserted into the inserted portion and electrically connected to the winding, an insulating auxiliary means is provided around the inserted portion and at a position corresponding to the divided portion of at least one of the conductive member; It is characterized by the following.

[0009] In another embodiment of the stator of the present invention, further features include: "The insulating member is a first core cover attached to one side of the core in the axial direction; a second core cover attached to the other axial side of the core, The auxiliary insulation means is an auxiliary insulation part provided at a position corresponding to the dividing portion between the first core cover and the second core cover. "A protrusion is formed on one of the first core cover or the second core cover, a recess is formed in the other of the first core cover or the second core cover, The insulating auxiliary portion is formed by inserting the convex portion into the concave portion. "The convex portion and the concave portion surround the entire periphery of the inserted portion." "The auxiliary insulation means is an insulating coating provided on at least one of the conductive member and the inside of the inserted portion." "The auxiliary insulation means is a filled resin provided in the inserted portion." Includes.

[0010] Furthermore, one embodiment of the motor of the present invention is The stator of the present invention; a rotor that rotates due to the magnetic field generated by the stator, It is characterized by the following.

[0011] Furthermore, one embodiment of the motor actuator of the present invention is The motor of the present invention; a gear mechanism that transmits the rotational driving force of the motor while reducing the speed; an output shaft that outputs the rotational driving force to the outside, It is characterized by the following.

[0012] Another embodiment of the motor actuator of the present invention is The stator of the present invention; a rotor that rotates due to the magnetic field generated by the stator; a gear mechanism that transmits the rotational driving force of the motor while reducing the speed; an output shaft that outputs the rotational driving force to the outside; a case; The stator is fixed to a stator holding portion provided in the case. It is characterized by the following. [Effects of the Invention]

[0013] According to the stator, motor, and motor actuator of the present invention, even if dust or the like accumulates at the division points of the insulating member that is configured to be separable, it is possible to prevent a decrease in the insulation between the conductive member and the core. [Brief explanation of the drawings]

[0014] [Figure 1] 1A and 1B are perspective views of a stator according to a first embodiment of the present invention, in which (a) is a perspective view seen from above, and (b) is a perspective view seen from below. [Figure 2] 1 is a configuration diagram of a stator according to a first embodiment of the present invention. [Figure 3] 3 is a cross-sectional view taken along the line AA in FIG. 2. [Figure 4] FIG. 4 is an enlarged cross-sectional view of a portion IV in FIG. [Figure 5] 1A and 1B are perspective views of core covers in a stator according to a first embodiment of the present invention, where FIG. 1A is a perspective view of a first core cover seen from below, and FIG. 1B is a perspective view of a second core cover seen from above. [Figure 6] FIG. 4 is a cross-sectional view of a stator according to a second embodiment of the present invention. [Figure 7] FIG. 7 is an enlarged cross-sectional view of a portion VII in FIG. [Figure 8]FIG. 10 is an enlarged cross-sectional view showing a modified example of the stator according to the second embodiment of the present invention. [Figure 9] 10A and 10B are perspective views of a motor according to a third embodiment of the present invention, in which (a) is a diagram of assembling a stator, (b) is a diagram immediately after the stator is fixed, and (c) is a completed diagram. [Figure 10] 10A and 10B are conceptual diagrams of a motor actuator according to a fourth embodiment of the present invention, in which (a) is a diagram using a worm gear, and (b) is a diagram using a pinion gear. [Figure 11] 10A and 10B are conceptual diagrams of a motor actuator according to a fifth embodiment of the present invention, where (a) is an external view and (b) is a top view. [Figure 12] 10A to 10C are perspective views showing the assembly of a motor section of a motor actuator according to a fifth embodiment of the present invention, where (a) is an assembly diagram, (b) is a diagram immediately after the stator and circuit board have been fixed, and (c) is a completed diagram. [Figure 13] FIG. 1 is a cross-sectional view illustrating a conventional technique. DETAILED DESCRIPTION OF THE INVENTION

[0015] In this specification, the direction parallel to the central axis in Figures 1, 3, 6, etc. is referred to as the "axial direction," the radial direction about the central axis is referred to as the "radial direction," and the circumferential direction about the central axis is referred to as the "circumferential direction." Also, in Figures 3, 6, etc., the upward direction is simply referred to as the "upward direction," and the downward direction is simply referred to as the "downward direction." The up-down direction does not necessarily correspond to the positional relationship or direction when incorporated into an actual device.

[0016] Hereinafter, an embodiment of the present invention will be described by way of example with reference to the drawings.

[0017] (First embodiment) A stator according to a first embodiment of the present invention will be described with reference to Figures 1 to 3. Stator 1 is a stator for a so-called outer rotor brushless motor, and has a core 10, an insulating member 20 that covers core 10, a plurality of windings 30 wound around insulating member 20, and a plurality of conductive members 40 for supplying driving power to windings 30.

[0018] Core 10 is disposed around central axis 2. Core 10 is made of a magnetic material and has an annular portion 11 formed to cover central axis 2, a plurality of pole teeth 12 extending radially outward from annular portion 11, and flange portions 13 extending circumferentially from the tips of pole teeth 12. Slots 14 are formed between pole teeth 12. Note that, for ease of explanation, winding 30 wound around one pole tooth 12 is not shown in FIG. 2.

[0019] The insulating member 20 is molded from insulating resin and is configured to be separable in the axial direction into a first core cover 21 that is attached to the core 10 from above in the axial direction, and a second core cover 22 that is attached to the core 10 from below in the axial direction. The insulating member 20 covers the upper and lower surfaces and the outer peripheral surface of the annular portion 11 of the core 10, the periphery of the pole teeth 12, and the inner peripheral surface of the flange portion 13, and ensures insulation between the core 10 and the winding 30 and conductive member 40, which will be described later.

[0020] In this embodiment, the first core cover 21 and the second core cover 22 are not in contact with each other at the dividing point, so a gap 25 is formed at the dividing point between the first core cover 21 and the second core cover 22.

[0021] The insulating member 20 has an insertion hole 23 for inserting an insertion portion 42 of a conductive member 40 (described later) in the axial direction. The insertion hole 23 is provided near the annular portion 11 between the pole teeth 12, and corresponds to the inserted portion in this embodiment. An insulating auxiliary portion 26 (described later) is formed at a position corresponding to a gap 25 around the insertion hole 23.

[0022] Furthermore, on the lower surface of the insulating member 20, an accommodating groove 24 for accommodating a connecting portion 41 of a conductive member 40 (described later) is formed radially outward from the open end of the insertion hole 23. In this embodiment, the first core cover 21 and the second core cover 22 have substantially the same shape, and therefore the insertion hole 23 and the accommodating groove 24 are provided at substantially the same positions on both the first core cover 21 and the second core cover 22.

[0023] The conductive member 40 includes a connecting portion 41 extending radially and arranged approximately parallel to the accommodating groove 24 provided in the insulating member 20, an insertion portion 42 rising axially upward from one end (left side in Figure 3) of the connecting portion 41, and a board connecting portion 43 hanging axially downward from the other end (right side in Figure 3) of the connecting portion 41.

[0024] The insertion portion 42 of the conductive member 40 is inserted into the insertion hole 23 from below the insulating member 20 and is held so as to penetrate the insulating member 20. At this time, the tip of the insertion portion 42 protrudes above the insulating member 20 and is electrically connected to the winding end portion 31 of the winding 30, which will be described later. The connecting portion 41 of the conductive member 40 is received in the receiving groove 24 provided below the insulating member 20 and abuts against the bottom surface of the receiving groove 24 over substantially the entire area.

[0025] A winding 30 for generating a magnetic field is wound around the pole teeth 12, which are covered with an insulating member 20. An end portion 31 of the winding is wound around an insertion portion 42 of a conductive member 40, and is electrically connected by any method such as welding or soldering.

[0026] The auxiliary insulation part 26, which is the auxiliary insulation means in this embodiment, will be described with reference to Figures 4 and 5. At the dividing point between the first core cover 21 and the second core cover 22, the dividing surface 21a of the first core cover and the dividing surface 22a of the second core cover face each other with a gap 25 therebetween.

[0027] A protrusion 26a is formed around the insertion hole 23 on the divided surface 21a of the first core cover, all around the insertion hole 23, with the insertion hole 23 at its center and surrounding the insertion hole 23. A recess 26b is formed around the insertion hole 23 on the divided surface 22a of the second core cover, all around the insertion hole 23, with the insertion hole 23 at its center and surrounding the insertion hole 23. The axial length of the protrusion 26a is longer than the axial length of the expected gap 25, and the protrusion 26a is formed in a shape that can be inserted into the recess 26b. Inserting the protrusion 26a into the recess 26b forms the insulation auxiliary part 26, which is the insulation auxiliary means in this embodiment.

[0028] By forming the insulating auxiliary portion 26, even if dust or the like accumulates in the gap 25 that occurs at the divided point of the insulating member 20, good insulation can be maintained between the conductive member 40 and the core 10, and between the conductive member 40 and the winding 30.

[0029] In this embodiment, the insulating auxiliary part 26 is formed by making the protrusion 26a substantially the same shape as the recess 26b but slightly smaller in size, and inserting the protrusion 26a into the recess 26b, but this is not limited to this. The protrusion 26a may be configured to be fitted to the recess 26b by making the shape substantially the same as that of the recess 26b. Alternatively, the protrusion 26a may be configured to be slightly larger in size than the recess 26b, so that it is press-fitted.

[0030] In this embodiment, the first core cover 21 is provided with the convex portion 26a and the second core cover 22 is provided with the concave portion 26b, but the reverse is also possible. Furthermore, rather than limiting the arrangement of only the convex portion 26a or only the concave portion 26b to either the first core cover 21 or the second core cover 22, a mixture of the convex portion 26a and the concave portion 26b may be arranged. In this case, where the convex portion 26a is provided on the first core cover 21, the concave portion 26b is provided at a corresponding location on the second core cover 22, and where the concave portion 26b is provided on the first core cover 21, the convex portion 26a is provided at a corresponding location on the second core cover 22.

[0031] Furthermore, in this embodiment, the protrusions 26a are formed all around the insertion hole 23, but they may be formed only in a direction where a decrease in insulation is particularly likely. There are no limitations on the arrangement, number, or shape of the protrusions 26a and recesses 26b as long as the insulation of the conductive member 40 is improved by inserting the protrusions 26a into the recesses 26b.

[0032] (Second embodiment) A stator according to a second embodiment of the present invention will be described with reference to Figures 6 and 7. The stator 1 in the second embodiment differs from the first embodiment in terms of the auxiliary insulation means. The other configurations are the same as the stator 1 shown in the first embodiment, so Figures 1 to 3 will be referred to as appropriate, and the same components will be assigned the same reference numerals and redundant explanations will be omitted.

[0033] In this embodiment, the insertion portion 42 of the conductive member 40 is insulated by an insulating coating 27a. The insulating coating 27a is, for example, an insulating tube, and is provided on the portion of the insertion portion 42 that faces the gap 25, covering the entire outer periphery of that portion. The insulating coating 27a corresponds to the auxiliary insulating means in this embodiment.

[0034] Insulating coating 27a may be, other than an insulating tube, a resin tube made by resin molding, a resin film formed by applying an insulating coating agent, insulating tape attached to the outer periphery of insertion portion 42, or the like. Insulating coating 27a is provided on the portion of insertion portion 42 facing gap 25, but is not limited to this portion and may cover a wider area excluding areas necessary for electrical connection with winding 30 and a circuit board (not shown). Insulating coating 27a may be provided not only on the outer periphery of insertion portion 42 but also inside insertion hole 23.

[0035] By forming the insulating coating 27a, even if dust or the like accumulates in the gap 25 that occurs at the divided point of the insulating member 20, good insulation can be maintained between the conductive member 40 and the core 10, and between the conductive member 40 and the winding 30.

[0036] As a modification of the second embodiment, as shown in Fig. 8, a configuration is also possible in which the insertion holes 23 and the gaps 25 are filled with a filling resin 27b. An epoxy resin or the like with excellent insulating properties is suitable as the filling resin 27b. Preventing dust and the like from accumulating in the gaps 25 prevents a decrease in the insulating properties of the conductive member 40, and the adhesive properties of the filling resin 27b also make it possible to firmly fix the conductive member 40.

[0037] (Third embodiment) A motor according to a third embodiment of the present invention will be described with reference to Figure 9. Motor 50 has stator base 51, bearing housing 52 and circuit board 53 fixed on stator base 51, bearing 55 provided within bearing housing 52, stator 1, and rotor 57 having shaft 56. Since the configuration of stator 1 is the same as that of the stator 1 shown in the first and second embodiments, for the configuration of stator 1, refer to Figures 1 to 8 as appropriate, and identical components will be designated by the same reference numerals and redundant description will be omitted.

[0038] Stator base 51 is made of a thin metal plate such as iron or aluminum, and is pressed into a predetermined shape with a central hole near its center. A bearing housing 52, which is approximately cylindrical and has a bottom, is fixed coaxially to the central hole. A bearing 55, made of, for example, a sintered oil-impregnated material, is fixed inside bearing housing 52 by any method.

[0039] The rotor 57 is formed in a generally cylindrical shape with a lid, and includes a cylindrical portion 57a ​​and a generally disk-shaped lid portion 57b attached to the upper end of the cylindrical portion 57a. A shaft 56 is press-fitted into the center of the lid portion 57b so as to pass through it vertically. A drive magnet (not shown) is provided on the inner peripheral surface of the cylindrical portion 57a, and is disposed so as to radially face the pole teeth 12 of the core 10 of the stator 1. The shaft 56 is journaled by a bearing 55.

[0040] The circuit board 53 has a central hole, and is fixed to the stator base 51 by any method, such as adhesive, so that the bearing housing 52 passes through the central hole. A Hall element (not shown) is provided on the circuit board 53 as a means for detecting the position of the magnetic pole of the rotor 57. The circuit board 53 also has a through hole 54 at a position corresponding to the board connection portion 43 of the conductive member 40 provided on the stator 1.

[0041] The stator 1 is inserted and fixed in place so that the inner peripheral surface of the annular portion 11 of the core 10 contacts the outer peripheral surface of the bearing housing 52. The conductive member 40 is inserted into a through hole 54 provided in the circuit board 53 and electrically connected by any method such as soldering.

[0042] When driving power is supplied to the conductive member 40 through the circuit board 53, a magnetic field is generated from the pole teeth 12 of the stator 1, and this magnetic field rotates the rotor 57. When the rotor 57 is rotated, an air current is generated inside the motor 50, which causes dust and the like to enter the inside of the motor 50. However, in the motor 50 of this embodiment, an auxiliary insulation means is provided at a position corresponding to the dividing point (gap 25) of the insulating member 20, so it is possible to prevent a decrease in insulation when dust and the like accumulates in the gap 25, and to prevent malfunction of the motor due to the decrease in insulation.

[0043] (Fourth embodiment) A motor actuator according to a fourth embodiment of the present invention will be described with reference to Figure 10(a). Motor actuator 70 has a lower case 71, an upper case (not shown), a motor 50 serving as a drive source, a gear mechanism 72 that transmits the rotational drive force while reducing the speed, and an output shaft 73 that outputs the rotational drive force to the outside. Since the configuration of motor 50 is the same as that of motor 50 shown in the third embodiment, Figure 9 will be referred to as appropriate for the configuration of motor 50, and identical components will be designated by the same reference numerals and redundant explanations will be omitted.

[0044] The lower case 71 has a bottom wall 71a and four side walls 71b, and is a roughly rectangular container shape with one open side. By assembling the lower case 71 with an upper case (not shown), which also has one open side, by aligning the open sides, a housing with a predetermined internal space is formed.

[0045] A housing (not shown) for the motor 50 is provided on the bottom wall 71a of the lower case 71, and the motor 50 is arranged so that the shaft 56 of the motor 50 is perpendicular to the output shaft 73 described below.

[0046] The rotational driving force of the motor 50 is transmitted to an output shaft 73 via a gear mechanism 72 including a worm gear 72a. A crank (not shown) and the like are attached to the output shaft 73.

[0047] As described above, by configuring the motor 50 and motor actuator 70, a highly reliable motor actuator can be realized that prevents deterioration of the insulation properties of the conductive member 40 of the stator 1, and is particularly suitable for automotive motor actuators that require high reliability.

[0048] Also, as shown in FIG. 8(b), it is possible to mount a pinion gear 72b on the shaft 56, and to position the motor 50 so that the shaft 56 of the motor 50 and the output shaft 73 are parallel to each other.

[0049] (Fifth embodiment) A motor actuator according to a fifth embodiment of the present invention will be described using Figures 11 and 12. Motor actuator 80 of this embodiment can be used, for example, as a drive source for a vehicle grille shutter device, and mainly comprises a lower case 81, an upper case 82, a motor 90 incorporated into lower case 81 and serving as a drive source, a gear mechanism 85 that transmits rotational drive force while reducing the speed, and an output shaft 86 that outputs the rotational drive force to the outside.

[0050] Motor 90 is a so-called outer rotor type motor, and the configurations of stator 1 and circuit board 53 are the same as those shown in the first to third embodiments. Therefore, for the configurations of stator 1 and circuit board 53 in motor 90, refer to Figures 1 to 9 as appropriate, and the same components are designated by the same reference numerals, and redundant explanations will be omitted.

[0051] The lower case 81 has a bottom wall 81a and four side walls 81b, and is shaped like a roughly rectangular container with one open side. By assembling the lower case 81 and the upper case 82 so that the open sides are aligned, a housing with a predetermined internal space is formed. The upper case 82 is provided with an opening (not shown) for exposing the output shaft 86 (described below) to the outside of the upper case.

[0052] A substantially cylindrical stator holding portion 83 is formed on the bottom wall 81a of the lower case 81 for fixing the stator 1 of the motor 90. A bearing 84 made of, for example, a sintered oil-impregnated material is fixed inside the cylindrical portion of the stator holding portion 83 by any method such as press fitting. The circuit board 53 is fixed so that its center hole fits into the stator holding portion 83. Note that, for ease of explanation, Figures 12(a) to (c) only show the periphery of the motor 90, and do not show the gear mechanism 85 and the like.

[0053] The rotor 91 is formed in a generally cylindrical shape with a lid, and includes a cylindrical portion 91a and a generally disk-shaped lid portion 91b provided at the upper end of the cylindrical portion 91a. A shaft 92 is fixed by press fitting into the center of the lid portion 91b. A drive magnet (not shown) is provided on the inner peripheral surface of the cylindrical portion 91a, and is disposed so as to radially face the pole teeth 12 of the core 10 of the stator 1. The shaft 92 is journaled by a bearing 84. A pinion gear 93 is provided above the lid portion 91b, coaxial with the shaft 92, and meshes with a first-stage gear 85a in a gear mechanism 85.

[0054] The stator 1 is inserted and fixed into the stator holding portion 83 so that the inner peripheral surface of the annular portion 11 of the core 10 contacts the outer peripheral surface of the stator holding portion 83. The board connection portion 43 of the conductive member 40 is inserted into a through hole 54 provided in the circuit board 53 and electrically connected by any method. When driving power is supplied to the conductive member 40 through the circuit board 53, a magnetic field is generated from the pole teeth 12 of the stator 1 to a driving magnet (not shown), and a rotational driving force is generated in the rotor 91. The rotational driving force generated in the rotor 91 is transmitted from the pinion gear 93 to the gear mechanism 85 and output to the outside through the output shaft 86.

[0055] As described above, by configuring the motor 90 and motor actuator 80, a highly reliable motor actuator can be realized that prevents deterioration of the insulation of the conductive member 40 of the stator 1, and is particularly suitable for automotive motor actuators that require high reliability.

[0056] The above describes an embodiment of the present invention, but the present invention is not limited to the above, and can be implemented in various other modified forms within the scope of the invention without departing from the spirit of the invention.

[0057] For example, in the embodiment of the present invention, the stator 1 and the motors 50 and 90 are described as being of outer rotor type, but this is not limited thereto and may be an inner rotor type. Also, although a radial air gap motor is described, it is of course possible to apply the present invention to an axial air gap motor. In addition, the present invention can be similarly applied to any motor having a stator configured such that the core is covered with a separable insulating member and a conductive member is inserted through the insulating member.

[0058] In the embodiment of the present invention, the insertion holes 23 are arranged near the annular portion 11 between the pole teeth 12, but this is not limitative. The insertion holes 23 can also be arranged, for example, near the tip of the pole tooth, near the tip of the flange, etc.

[0059] In the embodiment of the present invention, the insulating member 20 is formed by combining the first core cover 21 and the second core cover 22, which are substantially the same shape, in a separable manner, but is not limited to this. For example, the insulating member 20 may be configured such that the first core cover is case-shaped and the second core cover is lid-shaped, and these are combined in a separable manner.

[0060] In the embodiment of the present invention, a gap is provided at the dividing point between the divided surface 21a of the first core cover and the divided surface 22a of the second core cover, but this is not limiting. The divided surface 21a of the first core cover and the divided surface 22a of the second core cover may be in contact with each other.

[0061] In the embodiment of the present invention, the insertion portion 42 of the conductive member 40 passes through the insertion hole 23, but it may not pass through. Also, the conductive member 40 may have a linear shape (so-called pin shape) without any bent portions along the way.

[0062] Furthermore, in the embodiment of the present invention, the stator 1 is applied to the motor 50 and the motor actuator 80 incorporating the motor 90, but the present invention is not limited to this. The stator of the present invention can also be applied to other well-known motors and motor actuators such as induction motors, synchronous motors, stepping motors, and reluctance motors. [Explanation of symbols]

[0063] 1 stator 2 center axis 10 cores 11 Annular section 12 polar teeth 13 Tsuba 14 slots 20 Insulating material 21 First Core Cover 21a Parting surface of first core cover 22 Second Core Cover 22a Second core cover dividing surface 23 Insertion hole 24 Storage groove 25 Gap 26 Insulation auxiliary part 26a Convex part 26b Recess 27a Insulation coating 27b Filled resin 30 windings 31 Winding end 40 Conductive material 41 Connecting part 42 Insertion part 43 PCB connection part 50 motor 51 Stator base 52 Bearing housing 53 Circuit Board 54 through holes 55 bearings 56 Shaft 57 Rotor 57a Cylinder part 57b Lid 70 Motor Actuator 71 Lower case 71a Bottom wall 71b side wall 72 Gear mechanism 72a worm gear 72b pinion gear 73 Output shaft 80 Motor Actuator 81 Lower case 81a Bottom wall 81b side wall 82 Upper case 83 Stator holder 84 Bearings 85 Gear mechanism 85a First gear 86 Output shaft 90 Motor 91 Rotor 91a Cylinder part 91b Lid 92 Shaft 93 Pinion gear 200 Stator 210 cores 220 Insulating materials 221 First Core Cover 222 Second Core Cover 223 Through hole 224 Storage groove 225 Gap 230 windings 231 Winding end 240 Conductive materials 241 Connecting part 243 PCB connection part

Claims

1. The core and an insulating member covering the core; a winding wound on the insulating member; a conductive member for supplying driving power to the winding, The insulating member is configured to be separable at a separation portion, the insulating member has an insertion portion through which the conductive member is inserted, the conductive member is inserted into the inserted portion and electrically connected to the winding, an insulating auxiliary means is provided around the inserted portion and at a position corresponding to the divided portion of at least one of the conductive member; A stator characterized by:

2. The insulating member is a first core cover attached to one axial side of the core; a second core cover attached to the other axial side of the core, the insulation auxiliary means is an insulation auxiliary part provided at a position corresponding to the division portion between the first core cover and the second core cover, 2. The stator according to claim 1.

3. a protrusion is formed on one of the first core cover and the second core cover; a recess is formed in the other of the first core cover or the second core cover, The insulating auxiliary portion is formed by inserting the protrusion into the recess.

3. The stator according to claim 2.

4. The protrusion and the recess surround the entire periphery of the inserted portion.

4. The stator according to claim 3.

5. The auxiliary insulation means is an insulating coating provided on at least one of the conductive member and the inserted portion.

2. The stator according to claim 1.

6. The auxiliary insulation means is a filled resin provided in the inserted portion.

2. The stator according to claim 1.

7. A stator according to any one of claims 1 to 6; a rotor that rotates due to the magnetic field generated by the stator; A motor equipped with

8. A motor according to claim 7; a gear mechanism that transmits the rotational driving force of the motor while reducing the speed; an output shaft that outputs the rotational driving force to the outside; A motor actuator comprising:

9. A stator according to any one of claims 1 to 6; a rotor that rotates due to the magnetic field generated by the stator; a gear mechanism that transmits the rotational driving force of the motor while reducing the speed; an output shaft that outputs the rotational driving force to the outside; a case; The stator is fixed to a stator holding portion provided in the case. A motor actuator characterized by:

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