WO2019044953A1

WO2019044953A1 - Stator structure and resolver

Info

Publication number: WO2019044953A1
Application number: PCT/JP2018/032064
Authority: WO
Inventors: 一輝宮尾
Original assignee: ミネベアミツミ株式会社
Priority date: 2017-08-31
Filing date: 2018-08-30
Publication date: 2019-03-07
Also published as: JPWO2019044953A1; CN111095754B; JP6983246B2; CN111095754A

Abstract

A stator structure (1) according to an embodiment is provided with: a stator core (10); an insulator (20); a plurality of coils (30); a plurality of terminals (40); a terminal base portion (50); and a lead wire holding portion (60). The stator core (10) includes an annular body portion (11), and a plurality of teeth (12) extending in a radial direction from the body portion (11) and arranged in a circumferential direction of the body portion (11). The insulator (20) covers the plurality of teeth (12). The plurality of coils (30) are respectively wound around the plurality of teeth (12) via the insulator (20). The plurality of terminals (40) extend in an axial direction of the stator core (10), and each have one end connected to the end of windings of the coils (30). The terminal base portion (50) is disposed on the body portion (11) of the stator core (10), and holds the plurality of terminals (40). The lead wire holding portion (60) is disposed on the body portion (11) of the stator core (10), and houses the other end of each of the plurality of terminals (40). A lead wire (100) is inserted into the lead wire holding portion (60) in the axial direction and is connected to the other end.

Description

Stator structure and resolver

The present invention relates to a stator structure and a resolver.

BACKGROUND Conventionally, resolvers that detect the rotation angle of a rotating electrical machine such as a motor or a generator are known. The resolver includes, for example, a stator core including a plurality of teeth extending from the inner circumferential side of the annularly formed main body toward the center, and a rotor disposed so as to face the plurality of teeth inside the stator core. Prepare. In addition, a winding is wound around the teeth via an insulator, and the winding is entangled at one end of the terminal. Then, the other end of the terminal is disposed so as to extend to the lead wire holding portion, and the lead wire holding portion is connected to a lead wire extending from the external device (see, for example, Patent Document 1).

Unexamined-Japanese-Patent No. 2006-107869

However, in the prior art, since the lead wire holding portion is provided so as to project outward from the outer peripheral side of the stator core, the outer diameter of the resolver becomes large, and there is a possibility that dimensional constraints may occur when attaching to the rotating electric machine. there were.

This invention is made in view of the above, Comprising: It aims at providing the stator structure and resolver which can improve the attachment nature to a rotating electrical machine.

In order to solve the problems described above and to achieve the object, a stator structure according to an aspect of the present invention includes a stator core, an insulator, a plurality of coils, a plurality of terminals, a terminal block portion, and a lead wire holding portion And. The stator core has an annular main body, and a plurality of teeth radially extending from the main body and arranged along the circumferential direction of the main body. The insulator covers the plurality of teeth. The plurality of coils are wound around each of the plurality of teeth via the insulator. The plurality of terminals extend in the axial direction of the stator core, and the ends of the windings constituting the coil are entangled at one end. The terminal block portion is disposed on the main body portion of the stator core and holds the plurality of terminals. The lead wire holding portion is disposed on the main body portion of the stator core, accommodates the other end of the plurality of terminals, and a lead wire is inserted in the axial direction and connected to the other end.

According to one aspect of the present invention, the attachment to a rotating electrical machine can be improved.

FIG. 1 is a perspective view showing the configuration of the stator structure according to the embodiment. FIG. 2 is another perspective view showing the configuration of the stator structure according to the embodiment. FIG. 3 is an enlarged perspective view showing an internal wiring structure of the stator structure according to the embodiment. FIG. 4 is a diagram (1) for explaining an assembly process of the stator structure according to the embodiment. FIG. 5 is a diagram (2) for explaining the assembly process of the stator structure according to the embodiment. FIG. 6 is a top view showing the configuration of the resolver according to the embodiment. FIG. 7 is a perspective view showing the configuration of a stator structure according to another embodiment.

Hereinafter, a stator structure and a resolver according to an embodiment will be described with reference to the drawings. The application of the stator structure and the resolver is not limited by the embodiments described below. In addition, it should be noted that the drawings are schematic, and the relationship between dimensions of each element, the ratio of each element, and the like may differ from reality. Furthermore, even between the drawings, there may be portions where dimensional relationships and proportions differ from one another.

(Configuration of stator structure)
First, details of the stator structure 1 according to the embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing the configuration of a stator structure 1 according to the embodiment, and FIG. 2 is another perspective view showing the configuration of the stator structure 1 according to the embodiment.

As shown in FIG. 1, the stator structure 1 includes a stator core 10, an insulator 20, a plurality of coils 30, a plurality of terminals 40, a terminal block portion 50, and a lead wire holding portion 60. In addition, although the coil 30 is illustrated cyclically for convenience, the embodiment is wound around each of the plurality of teeth 12 as shown in FIG. 5.

The stator core 10 has a laminated structure in which a plurality of steel plates formed of a soft magnetic material such as an electromagnetic steel plate are laminated. The stator core 10 has a main body 11 and a plurality of teeth 12. The main body portion 11 is annular, and in the embodiment is annular. The plurality of teeth 12 extend from the inner peripheral side of the main body portion 11 toward the center of the main body portion 11 (that is, in the radial direction). The stator core 10 is configured by laminating a plurality of cores manufactured by pressing a steel plate such as an electromagnetic steel plate.

In the following, as shown in FIG. 1, the radial direction, the axial direction, and the circumferential direction of the stator core 10 will be defined and described. Here, the “radial direction” is a direction orthogonal to the rotation axis of the rotor 2 (see FIG. 6) rotating inside the stator core 10, and the “axial direction” is the axial direction of the rotation axis of the rotor 2 The directions are coincident, and the “circumferential direction” is a direction coincident with the rotational direction of the rotor 2.

The insulator 20 is an insulating member, and is formed, for example, by injection molding of an insulating resin. The insulator 20 is composed of a first insulator 21 and a second insulator 22. The stator core 10 is covered with the first insulator 21 and the second insulator 22 from both sides in the axial direction.

The plurality of coils 30 are wound around each of the plurality of teeth 12 via the insulator 20, as shown in FIG. The coil 30 is composed of an excitation winding and an output winding. Further, the output winding of the coil 30 is composed of a sin phase output winding that outputs an output signal of sin phase and a cos phase output winding that outputs an output signal of the cos phase.

The plurality of terminals 40 are conductive members such as metal. One end of each of the plurality of terminals 40 extends in the axial direction from the terminal block 50, and the other end is accommodated in the lead wire holding portion 60. The end of the winding constituting the corresponding coil 30 is wound around one end of the terminal 40, and the other end of the terminal 40 is connected to the lead wire 100 shown in FIG. The wiring structure of the plurality of terminals 40 will be described later.

The terminal block 50 extends in the axial direction from the main body 11 of the stator core 10. In the embodiment, the terminal structure 50 is provided with a pair of terminal blocks 50, and each terminal block 50 is provided with three terminals 40 respectively.

The lead wire holding portion 60 extends in the axial direction from above the main body portion 11 of the stator core 10. In the embodiment, the lead wire holding portion 60 is provided between the pair of terminal blocks 50. A plurality of hole-shaped insertion portions 61 are formed in the lead wire holding portion 60, and the lead wires 100 extending from an external device (not shown) are inserted into the insertion portions 61 and held.

Since the other end of the terminal 40 is exposed in the insertion portion 61, the lead wire 100 is electrically connected to the terminal 40 by inserting the lead wire 100 into the insertion portion 61. Can. For example, by applying resistance welding to a portion where lead wire 100 and terminal 40 contact, lead wire 100 and terminal 40 can be electrically connected.

Here, in the embodiment, as shown in FIG. 1 and the like, the terminal block portion 50 and the lead wire holding portion 60 are both disposed on the main body portion 11 of the stator core 10 and extend in the axial direction. Thus, the terminal block 50 and the lead wire holding portion 60 can be prevented from protruding outward from the main body portion 11 of the stator core 10 in the radial direction.

In the embodiment, as shown in FIG. 2, the plurality of terminals 40 are arranged to extend in the axial direction, and the plurality of lead wires 100 are inserted in the insertion portion 61 in the axial direction. Thereby, the plurality of terminals 40 and the plurality of lead wires 100 can be suppressed from protruding outward in the radial direction from the main body portion 11 of the stator core 10.

That is, in the embodiment, since the respective constituent members of the stator structure 1 and the lead wires 100 can be prevented from protruding outward from the main body portion 11 of the stator core 10 in the radial direction, the stator structure 1 can be reduced in diameter. Can. Therefore, according to the embodiment, since the dimensional restriction when attaching to the rotating electrical machine can be reduced, the attachability to the rotating electrical machine can be improved.

In the embodiment, the terminal block 50 and the lead wire holding portion 60 may be integrally formed with the first insulator 21. As a result, since the terminal base portion 50 and the lead wire holding portion 60 can be simultaneously formed when the first insulator 21 is formed, the manufacturing process of the stator structure 1 can be simplified.

In the embodiment, as shown in FIG. 1, the terminal block 50 and the lead wire holding portion 60 may be integrally formed in a substantially arc shape along the circumferential direction. Thereby, the strength can be increased as compared with the case where the terminal block 50 and the lead wire holding portion 60 are formed independently on the first insulator 21. Therefore, according to the embodiment, the reliability of the stator structure 1 can be improved.

In the embodiment, as shown in FIG. 2, the terminal block 50 is formed with a through hole 51 penetrating in the radial direction. Here, when the end of the winding wound around the teeth 12 is wound around one end of the terminal 40, a slack pin (not shown) is inserted into the through hole 51 in advance. Then, by winding the end of the winding around the terminal 40 while detouring the winding with the slack pin and then removing the slack pin, it is possible to form a predetermined slack in the winding.

Thereby, even when the winding is thermally shrunk, it is possible to suppress the breakage of the winding due to the formed sag. Therefore, according to the embodiment, the reliability of the stator structure 1 can be improved.

(Internal wiring structure of stator structure)
Subsequently, the internal wiring structure of the stator structure 1 will be described with reference to FIG. FIG. 3 is an enlarged perspective view showing an internal wiring structure of the stator structure 1 according to the embodiment, and a wiring portion embedded inside is shown by a broken line.

As shown in FIG. 3, among the pair of terminal blocks 50,

terminals

40 a, 40 b, and 40 c are provided as the terminals 40 on the terminal block 50 a on the left side of FIG. 3. In addition,

terminals

40d, 40e, and 40f are provided as the terminals 40 in the terminal block 50b on the right side of FIG.

For example, the winding start of the excitation winding is wound on one end of the terminal 40a, the winding end of the sin phase output winding is wound on one end of the terminal 40b, and the sin phase output is wound on one end of the terminal 40c. The winding start of the winding is entangled. In addition, the winding start of the cos phase output winding is wound on one end of the terminal 40d, the winding end of the cos phase output winding is wound on one end of the terminal 40e, and excitation is performed on one end of the terminal 40f. The winding end of the winding is tangled. And the end of the winding tangled in the terminal 40 is welded and electrically joined by TIG (Tungsten Inert Gas) welding.

The example shown here is merely an example, and one of the excitation winding, the sin phase output winding, and the cos phase output winding may be entwined at one end of the terminals 40a to 40f.

Further, in the lead wire holding part 60, insertion parts 61a to 61f are formed as the insertion part 61. The other end of the terminal 40a is wired in the insertion portion 61a so as to extend in the circumferential direction inside the terminal base portion 50a and the lead wire holding portion 60, and the other end of the terminal 40b is a terminal block in the insertion portion 61b. It is wired so as to extend in the circumferential direction inside the portion 50a and the lead wire holding portion 60, and the other end of the terminal 40c extends in the circumferential direction in the terminal base portion 50a and the lead wire holding portion 60 in the insertion portion 61c. Wired to

Similarly, in the insertion portion 61 d, the other end of the terminal 40 d is wired so as to extend in the circumferential direction inside the terminal base portion 50 b and the lead wire holding portion 60, and in the insertion portion 61 e, the other end of the terminal 40 e is a terminal The other end of the terminal 40f extends in the circumferential direction in the terminal block portion 50b and the lead wire holding portion 60 in the insertion portion 61f. It is wired.

Here, as shown in FIG. 3, the

terminals

40 a, 40 b and 40 c are provided so as to be stacked in the axial direction inside the terminal block 50 a and the lead wire holding portion 60. Similarly, the

terminals

40 d, 40 e, 40 f are provided so as to be stacked in the axial direction inside the terminal block 50 b and the lead wire holding portion 60. The coil 30 is omitted.

As described above, while providing the pair of

terminal block portions

50a and 50b on both sides of the lead wire holding portion 60, the terminals 40a to 40f are provided so as to be laminated inside, thereby increasing the size in the circumferential direction and the axial direction The wiring structure can be formed between the

terminal block portions

50 a and 50 b and the lead wire holding portion 60 while suppressing the Therefore, according to the embodiment, the stator structure 1 can be miniaturized in the axial direction in addition to the circumferential direction.

Furthermore, in the embodiment, the same number of terminals 40 may be provided on the terminal block 50a and the terminal block 50b. Thereby, the number of terminals 40 stacked in the axial direction can be minimized. Therefore, according to the embodiment, the stator structure 1 can be further miniaturized in the axial direction.

On the other hand, if the restriction of the dimension in the axial direction is small, it is not always necessary to provide the same number of terminals 40 on the terminal block 50a and the terminal block 50b. For example, four terminals 40 may be provided on one terminal block 50 and two terminals 40 may be provided on the other terminal block 50, or five terminals 40 may be provided on one terminal block 50, One terminal 40 may be provided on the terminal block 50.

In the embodiment, as shown in FIG. 3, in the lead wire holding portion 60, the insertion portions 61a to 61f are formed in line in a straight line. Thus, when resistance welding of the lead wire 100 to the terminals 40a to 40f in the insertion portions 61a to 61f, the electrodes used for the resistance welding can be easily applied to the terminals 40a to 40f.

Therefore, according to the embodiment, the workability at the time of attaching the lead wire 100 to the stator structure 1 can be improved.

(Stator structure and resolver assembly process)
Subsequently, an assembly process of the stator structure 1 and the resolver according to the embodiment will be described with reference to FIGS. 4 to 6. FIG. 4: is a figure (1) for demonstrating the assembly process of the stator structure 1 which concerns on embodiment, The coil 30 is abbreviate | omitted.

As shown in (a) to (c) of FIG. 4, in the stator structure 1, the first insulator 21, the stator core 10, and the second insulator 22 center on the rotation axis R of the rotor 2 (see FIG. 6). And assembled in order from the top.

As shown to (a) of FIG. 4, the 1st insulator 21 has the cyclic | annular main-body part 21a. Further, the first insulator 21 includes a plurality of extending portions 21b extending inward in the radial direction from the inner peripheral portion of the main body portion 21a, and a wall portion 21c projecting downward from the edge of the extending portion 21b. A wall 21d is provided which protrudes upward from the tip of the extension 21b.

Further, the terminal block 50 and the lead wire holding portion 60 are integrally formed on the first insulator 21. Specifically, the terminal block 50 and the lead wire holding portion 60 are integrally formed with the main portion 21 a of the first insulator 21. When the first insulator 21 is integrally formed with the terminal block 50 and the lead wire holding portion 60, the plurality of terminals 40 may be embedded by insert molding.

As shown in (b) of FIG. 4, the stator core 10 has an annular main body portion 11. Further, the stator core 10 is provided with a plurality of teeth 12 extending inward in the radial direction from the inner peripheral portion of the main body portion 11. The teeth 12 are substantially T-shaped in a plan view, and extend in the radial direction from the inner peripheral portion of the main body 11 to the inside in the radial direction, and both ends in the circumferential direction from the tip of the extension 12a. And a protruding portion 12b protruding from the In addition, gaps 13 are formed between the adjacent teeth 12.

As shown to (c) of FIG. 4, the 2nd insulator 22 has the cyclic | annular main-body part 22a. Further, in the second insulator 22, a plurality of extending portions 22b extending inward in the radial direction from the inner peripheral portion of the main body portion 22a, and the upper periphery from the inner peripheral portion of the main body portion 22a and the edge portions of the extending portions 22b And a wall 22d projecting downward from the tip of the extension 22b.

Then, in the assembly process of the stator structure 1, the teeth 12 of the stator core 10 are vertically sandwiched by the extending portion 21 b of the first insulator 21 and the extending portion 22 b of the second insulator 22. At this time, the wall 21 c of the first insulator 21 is inserted into the gap 13 of the stator core 10, and the wall 22 c of the second insulator 22 is inserted into the gap 13 of the stator core 10.

Here, as shown in (c) of FIG. 4, the wall portion 22 c of the second insulator 22 is formed such that one height thereof is higher than the other height in the circumferential direction. As a result, since the entire upper surface of the wall 22c can be inserted into the gap 13 without accurate alignment, the wall 22c can be easily inserted into the gap 13. Therefore, according to the embodiment, assembling workability of the stator structure 1 can be improved.

Although not clearly shown in FIG. 4A, since the wall portion 21c of the first insulator 21 also has the same shape, the assembling workability of the stator structure 1 can be similarly improved.

Subsequently, as shown in FIG. 5, the coil 30 is wound around the extension portion 12 a of the tooth 12 with respect to the laminate formed of the first insulator 21, the stator core 10 and the second insulator 22. . FIG. 5: is a figure (2) for demonstrating the assembly process of the stator structure 1 which concerns on embodiment.

In this step, a coil 30 having a predetermined number of turns is wound around each tooth 12, and a slack pin is inserted into the through hole 51 (see FIG. 2). Then, while the winding is diverted by the slack pin, the end of the predetermined winding is tangled in the predetermined terminal 40. Thereafter, the slack pins are removed from the through holes 51 to obtain the stator structure 1 shown in FIG.

Furthermore, as shown in FIG. 6, the resolver 3 is obtained by providing the rotor 2 inside the obtained stator structure 1. FIG. 6 is a top view showing the configuration of the resolver 3 according to the embodiment. The resolver 3 according to the embodiment is a VR (Variable Reluctance) type resolver, and the rotor 2 is fixed to the output shaft of the rotating electrical machine, and rotates with the rotation of the output shaft. Thereby, the rotation angle of the output shaft of a rotary electric machine can be detected.

(Other embodiments)
Subsequently, a stator structure 1 according to another embodiment will be described with reference to FIG. FIG. 7 is a perspective view showing a stator structure 1 according to another embodiment. In the following description, the same reference numerals are given to the same components as those in the above-described embodiment, and the detailed description is omitted.

In the stator structure 1 according to the embodiment shown in FIG. 1 and the like, the terminal base portion 50 and the lead wire holding portion 60 are both integrally formed with the first insulator 21, and the lead wire holding portion 60 has an insertion portion 61 ( 61a to 61f) are formed. Then, the lead wire 100 is inserted into the insertion portions 61a to 61f, and the lead wire 100 is connected to the other end of the terminal 40.

On the other hand, the stator structure 1 according to the other embodiment shown in FIG. 7 has a form in which the connecting portion is a connector structure instead of the method of directly connecting the lead wire 100 and the lead wire holding portion 60.

As shown in FIG. 7, a stator structure 1 according to another embodiment includes a connector housing 60 </ b> A in place of the lead wire holding portion 60. The connector housing 60A is another example of the lead wire holding portion 60.

The connector housing 60 </ b> A extends in the axial direction from the main body 11 of the stator core 10. The connector housing 60A is integrally formed with the first insulator 21, provided between the pair of terminal blocks 50, and has a shape that can be fitted with the connector 110. The connector 110 integrally holds the plurality of lead wires 100.

Further, the other end of the terminal 40 (40a to 40f) is exposed and disposed inside the connector housing 60A, and the distal end portion of the lead wire 110 is exposed and provided on the connector 110. The lead wire 100 and the terminal 40 can be electrically connected by inserting the connector 110 into the connector housing 60A.

That is, the connector housing 60A functions as a male connector, and the connector 110 functions as a female connector. The connector housing 60A may function as a female connector, and the connector 110 may function as a male connector.

According to another embodiment shown in FIG. 7, since the operation of connecting the lead wire 100 to the other end of the terminal 40 is not necessary, the workability at the time of connecting the lead wire 100 to the terminal 40 can be improved. .

As mentioned above, although each embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning. For example, although the embodiment shows an example in which the insulator 20 is divided into the first insulator 21 and the second insulator 22, the insulator 20 may be formed by insert molding so that the stator core 10 is embedded inside. .

In the embodiment, the example in which the pair of

terminal block portions

50a and 50b are provided on both sides of the lead wire holding portion 60 is shown, but one terminal block portion 50 is provided adjacent to the lead wire holding portion 60 It is also good.

Furthermore, although the embodiment shows an example in which the coil cover for protecting the coil 30 is not provided, a coil cover for protecting the coil 30 may be separately provided. In the embodiment, the present invention is applied to the inner rotor type resolver 3, but the present invention may be applied to the outer rotor type resolver.

As described above, the stator structure 1 according to the embodiment includes the stator core 10, the insulator 20, the plurality of coils 30, the plurality of terminals 40, the terminal block 50, and the lead wire holding portion 60. The stator core 10 has an annular main body portion 11 and a plurality of teeth 12 extending in the radial direction from the main body portion 11 and arranged along the circumferential direction of the main body portion 11. The insulator 20 covers the plurality of teeth 12. The plurality of coils 30 are wound around each of the plurality of teeth 12 via the insulator 20. The plurality of terminals 40 extend in the axial direction of the stator core 10, and the ends of the windings constituting the coil 30 are entangled at one end. The terminal block 50 is disposed on the main body 11 of the stator core 10 and holds a plurality of terminals 40. The lead wire holding portion 60 is disposed on the main body portion 11 of the stator core 10, accommodates the other end of the plurality of terminals 40, and the lead wire 100 is axially inserted and connected to the other end. Thereby, the attachment property to a rotary electric machine can be improved.

Further, in the stator structure 1 according to the embodiment, the

terminal block portions

50a and 50b are provided in a pair, and the pair of

terminal block portions

50a and 50b are disposed on both sides of the lead wire holding portion 60. Thereby, the stator structure 1 can be miniaturized in the axial direction as well.

Moreover, in the stator structure 1 which concerns on embodiment, a pair of

terminal block part

50a, 50b hold | maintains the same number of terminals 40, respectively. Thereby, the stator structure 1 can be further miniaturized in the axial direction.

Further, in the stator structure 1 according to the embodiment, the insulator 20, the terminal block portion 50, and the lead wire holding portion 60 are integrally formed. Thereby, the reliability of the stator structure 1 can be improved.

Further, in the stator structure 1 according to the embodiment, the plurality of terminals 40 are provided so as to be axially stacked inside the terminal block 50 and the lead wire holding portion 60. Thus, the stator structure 1 can be miniaturized in the axial direction in addition to the radial direction.

Further, in the stator structure 1 according to the embodiment, the lead wire holding portion 60 is formed as the connector housing 60A, and the lead wire 100 is held by the connector 110 that can be fitted to the connector housing 60A. Thereby, the workability at the time of connecting lead wire 100 to terminal 40 can be improved.

Further, the resolver 3 according to the embodiment includes the rotor 2 and the stator structure 1 described above. Thereby, the resolver 3 which improved the attachment property to a rotary electric machine is realizable.

Further, the present invention is not limited by the above embodiment. What is configured by appropriately combining the above-described constituents is also included in the present invention. Further, further effects and modifications can be easily derived by those skilled in the art. Therefore, the broader aspects of the present invention are not limited to the above embodiment, and various modifications are possible.

DESCRIPTION OF SYMBOLS 1 Stator structure, 2 rotor, 3 resolver, 10 stator core, 11 body part, 12 teeth, 20 insulators, 21 first insulator, 22 second insulator, 30 coils, 40, 40a to 40f terminals, 50 terminal blocks, 51 penetration Hole, 60 lead wire holding portion, 60A connector housing, 61, 61a to 61f insertion portion, 100 lead wire, 110 connector

Claims

A stator core having an annular main body, and a plurality of teeth radially extending from the main body and arranged along the circumferential direction of the main body;
An insulator covering the plurality of teeth;
A plurality of coils wound around each of the plurality of teeth via the insulator;
A plurality of terminals extending in the axial direction of the stator core and having the ends of windings constituting the coil wound around at one end;
A terminal block disposed on the main body of the stator core and holding the plurality of terminals;
A lead wire holding portion disposed on the main body portion of the stator core, accommodating the other end of the plurality of terminals, and having a lead wire inserted in the axial direction and connected to the other end;
Stator structure, comprising:
The terminal block is provided in a pair,
The stator structure according to claim 1, wherein a pair of the terminal blocks are disposed on both sides of the lead wire holding portion.
The stator structure according to claim 2, wherein the pair of terminal blocks hold the same number of terminals.
The stator structure according to any one of claims 1 to 3, wherein the insulator, the terminal block portion, and the lead wire holding portion are integrally formed.
The stator structure according to claim 4, wherein the plurality of terminals are provided to be stacked in the axial direction inside the terminal block portion and the lead wire holding portion.
The lead wire holding portion is formed as a connector housing.
The stator structure according to any one of claims 1 to 5, wherein the lead wire is held by a connector that can be fitted to the connector housing.
With the rotor,
A stator structure according to any one of claims 1 to 6;
, A resolver.