CN111095754B - Stator structure and rotary transformer - Google Patents
Stator structure and rotary transformer Download PDFInfo
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- CN111095754B CN111095754B CN201880055305.9A CN201880055305A CN111095754B CN 111095754 B CN111095754 B CN 111095754B CN 201880055305 A CN201880055305 A CN 201880055305A CN 111095754 B CN111095754 B CN 111095754B
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- 239000012212 insulator Substances 0.000 claims abstract description 51
- 238000004804 winding Methods 0.000 claims abstract description 35
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 42
- 238000010276 construction Methods 0.000 claims 3
- 238000003780 insertion Methods 0.000 description 18
- 230000037431 insertion Effects 0.000 description 18
- 238000000034 method Methods 0.000 description 8
- 230000002093 peripheral effect Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K24/00—Machines adapted for the instantaneous transmission or reception of the angular displacement of rotating parts, e.g. synchro, selsyn
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Motor Or Generator Frames (AREA)
Abstract
The invention relates to a stator structure and a resolver. A stator structure (1) of an embodiment comprises: the stator includes a stator core (10), an insulator (20), a plurality of coils (30), a plurality of terminals (40), a terminal block section (50), and a lead holding section (60). The stator core (10) has an annular main body portion (11), and a plurality of teeth (12) extending radially from the main body portion (11) and arranged along the circumferential direction of the main body portion (11). An insulator (20) covers the plurality of teeth (12). A plurality of coils (30) are wound around each of the plurality of teeth (12) via an insulator (20). The plurality of terminals (40) extend in the axial direction of the stator core (10), and the ends of the windings that form the coil (30) are wound around one end of the plurality of terminals (40). The terminal block (50) is disposed on the main body (11) of the stator core (10) and holds a plurality of terminals (40). The wire holding section (60) is disposed on the main body section (11) of the stator core (10), accommodates the other ends of the plurality of terminals (40), and is connected to the other ends of the plurality of terminals (100) so that the wires are inserted in the axial direction.
Description
Technical Field
The invention relates to a stator structure and a resolver.
Background
Conventionally, a resolver that detects a rotation angle of a rotating electrical machine such as a motor or a generator is known. The resolver includes, for example: the stator includes a stator core having a plurality of teeth extending from an inner peripheral side of a main body portion formed in an annular shape toward a center, and a rotor disposed inside the stator core so as to face the plurality of teeth. Further, a winding is wound around the teeth via an insulator, and the winding is wound around one end of the terminal. The other end of the terminal is arranged to extend along the wire holding portion and is connected to a wire extending from an external device in the wire holding portion (see, for example, patent document 1).
Patent document 1: japanese patent laid-open publication No. 2006-107869
However, in the conventional art, since the lead wire holding portion is provided so as to protrude outward from the outer peripheral side of the stator core, the outer diameter of the resolver may be increased, and there is a concern that size restrictions may occur when the resolver is mounted on a rotating electrical machine.
Disclosure of Invention
The present invention has been made in view of the above circumstances, and an object thereof is to provide a stator structure and a resolver that can improve mountability to a rotating electrical machine.
In order to solve the above problems and achieve the object, a stator structure according to an embodiment 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. The stator core includes an annular main body portion, and a plurality of teeth extending radially from the main body portion and arranged along a circumferential direction of the main body portion. 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 wound around one end of the plurality of terminals. The terminal block portion is disposed on the main body portion of the stator core, and holds the plurality of terminals. The wire holding portion is disposed on the main body portion of the stator core, receives the other ends of the plurality of terminals, and is connected to the other ends of the plurality of terminals through which a wire is inserted in the axial direction.
According to an embodiment of the present invention, the mountability of the rotating electric machine can be improved.
Drawings
Fig. 1 is a perspective view showing a structure of a stator structure according to an embodiment.
Fig. 2 is another perspective view showing the structure of the stator structure of the embodiment.
Fig. 3 is an enlarged perspective view showing an internal wiring structure of the stator structure of the embodiment.
Fig. 4 is a diagram (1) for explaining an assembly process of the stator structure of the embodiment.
Fig. 5 is a diagram (2) for explaining an assembly process of the stator structure of the embodiment.
Fig. 6 is a plan view showing the structure of the resolver according to the embodiment.
Fig. 7 is a perspective view showing a structure of a stator structure according to another embodiment.
Detailed Description
Hereinafter, a stator structure and a resolver according to an embodiment will be described with reference to the drawings. The stator structure and the application of the resolver are not limited to the embodiments described below. Note that the drawings are schematic, and the dimensional relationship, the ratio, and the like of each element may be different from those in the actual case. Further, even in the drawings, the drawings may include portions having different dimensional relationships and ratios.
(Structure of stator Structure)
First, details of the stator structure 1 of the embodiment will be described with reference to fig. 1 and 2. Fig. 1 is a perspective view showing a structure of a stator structure 1 of the embodiment, and fig. 2 is another perspective view showing the structure of the stator structure 1 of the embodiment.
As shown in fig. 1, the stator structure 1 includes: stator core 10, insulator 20, a plurality of coils 30, a plurality of terminals 40, terminal block 50, and wire holding portion 60. Note that, for convenience, the coil 30 is illustrated in a ring shape, but as illustrated in fig. 5, in the embodiment, the coil 30 is wound around each of the plurality of teeth 12.
The stator core 10 has a laminated structure in which a plurality of steel sheets made of a soft magnetic material such as an electromagnetic steel sheet are laminated. The stator core 10 has a main body portion 11 and a plurality of teeth 12. The body 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 (i.e., radial direction) of the main body portion 11. The stator core 10 is formed by laminating a plurality of iron cores, and the iron cores are manufactured by pressing steel sheets such as electromagnetic steel sheets.
In the following description, as shown in fig. 1, the radial direction, the axial direction, and the circumferential direction of the stator core 10 are defined. Here, "radial direction" is a direction perpendicular to the rotation axis of the rotor 2 (see fig. 6) rotating inside the stator core 10, "axial direction" is a direction matching the axial direction of the rotation axis of the rotor 2, and "circumferential direction" is a direction matching the rotation direction of the rotor 2.
The insulator 20 is an insulating member, and is formed by injection molding of an insulating resin, for example. The insulator 20 is composed of a first insulator 21 and a second insulator 22. The stator core 10 is covered from both sides in the axial direction by the first insulator 21 and the second insulator 22.
As shown in fig. 5, a plurality of coils 30 are wound around each of the plurality of teeth 12 via the insulator 20. The coil 30 is composed of an excitation winding and an output winding. The output winding of the coil 30 is composed of a sin phase output winding for outputting a sin phase output signal and a cos phase output winding for outputting a cos phase output signal.
The plurality of terminals 40 are conductive members such as metal. One end of each of the plurality of terminals 40 extends to project from the terminal block 50 in the axial direction, and the other end thereof is received in the lead wire holding portion 60. The ends of the windings constituting the corresponding coils 30 are wound around one end of the terminal 40, and the other end of the terminal 40 is connected to the wire 100 shown in fig. 2. The wiring structure of the plurality of terminals 40 will be described later.
The terminal block portion 50 extends from the main body portion 11 of the stator core 10 in the axial direction. In the embodiment, the stator structure 1 is provided with a pair of terminal block portions 50, and each of the terminal block portions 50 is provided with three terminals 40.
The wire holding portion 60 extends in the axial direction from the main body portion 11 of the stator core 10. In the embodiment, the wire holding portion 60 is provided between the pair of terminal table portions 50. The wire holding portion 60 is formed with a plurality of hole-shaped insertion portions 61, and the wire 100 extending from an external device (not shown) is inserted into and held by the insertion portions 61.
Since the other end of the terminal 40 is exposed to the insertion portion 61, the lead wire 100 can be electrically connected to the terminal 40 by inserting the lead wire 100 into the insertion portion 61. For example, the lead wire 100 and the terminal 40 can be electrically connected by resistance welding a portion where the lead wire 100 and the terminal 40 are in contact with each other.
Here, in the embodiment, as shown in fig. 1 and the like, the terminal block portion 50 and the wire holding portion 60 are both disposed on the main body portion 11 of the stator core 10 and extend in the axial direction. This can prevent the terminal block portion 50 and the wire holding portion 60 from protruding outward in the radial direction from the main body portion 11 of the stator core 10.
In addition, 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 wires 100 are inserted into the insertion portion 61 in the axial direction. This can prevent the plurality of terminals 40 and the plurality of lead wires 100 from protruding radially outward from the main body 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 radially outward from the main body portion 11 of the stator core 10, the stator structure 1 can be reduced in diameter. Therefore, according to the embodiment, the size restriction when the rotating electric machine is mounted can be reduced, and therefore, the mounting property of the rotating electric machine can be improved.
In the embodiment, the terminal block portion 50 and the lead wire holding portion 60 may be formed integrally with the first insulator 21. Thus, the terminal block portion 50 and the lead wire holding portion 60 can be formed at the same time when the first insulator 21 is formed, and therefore, the manufacturing process of the stator structure 1 can be simplified.
In the embodiment, as shown in fig. 1, the terminal block portion 50 and the lead wire holding portion 60 may be integrally formed in a substantially arc shape along the circumferential direction. This can improve the strength as compared with a case where the terminal block portion 50 and the lead wire holding portion 60 are formed separately 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, a through hole 51 penetrating in the radial direction is formed in the terminal block portion 50. Here, when winding the end of the coil wound around the tooth 12 around one end of the terminal 40, a loosening pin, not shown, is inserted into the through hole 51 in advance. Then, the terminal of the winding is wound around the terminal 40 while the winding is wound by the loosening pin, and then the loosening pin is removed, whereby a predetermined slack can be formed in the winding.
Thus, even when the winding is thermally contracted, the formed slack can be used to suppress the breakage of the winding. Therefore, according to the embodiment, the reliability of the stator structure 1 can be improved.
(internal wiring structure of stator structure)
Next, an internal wiring structure of the stator structure 1 will be described with reference to fig. 3. Fig. 3 is an enlarged perspective view showing an internal wiring structure of the stator structure 1 of the embodiment, and shows a wiring portion embedded inside with a broken line.
As shown in fig. 3, terminals 40a, 40b, and 40c are provided as the terminals 40 in the terminal block 50a on the left side of fig. 3 out of the pair of terminal blocks 50. In addition, terminals 40d, 40e, and 40f are provided as the terminals 40 in the terminal block portion 50b on the right side in fig. 3.
For example, a winding start point of the excitation winding is wound around one end of the terminal 40a, a winding end point of the sin phase output winding is wound around one end of the terminal 40b, and a winding start point of the sin phase output winding is wound around one end of the terminal 40 c. Further, a winding start point of the cos phase output winding is wound around one end of the terminal 40d, a winding end point of the cos phase output winding is wound around one end of the terminal 40e, and a winding end point of the field winding is wound around one end of the terminal 40 f. The terminals of the coil wound around the terminal 40 are welded by TIG (Tungsten Inert Gas) welding to be electrically joined.
The example shown here is merely an example, and any one of the field winding, the sin-phase output winding, and the cos-phase output winding may be wound around one end of the terminals 40a to 40 f.
The wire holding portion 60 has insertion portions 61a to 61f as insertion portions 61. In the insertion portion 61a, the other end of the terminal 40a is wired so as to extend in the circumferential direction inside the terminal block portion 50a and the lead wire holding portion 60, in the insertion portion 61b, the other end of the terminal 40b is wired so as to extend in the circumferential direction inside the terminal block portion 50a and the lead wire holding portion 60, and in the insertion portion 61c, the other end of the terminal 40c is wired so as to extend in the circumferential direction inside the terminal block portion 50a and the lead wire holding portion 60.
Similarly, in the insertion portion 61d, the other end of the terminal 40d is wired so as to extend in the circumferential direction inside the terminal block portion 50b and the lead wire holding portion 60, in the insertion portion 61e, the other end of the terminal 40e is wired so as to extend in the circumferential direction inside the terminal block portion 50b and the lead wire holding portion 60, and in the insertion portion 61f, the other end of the terminal 40f is wired so as to extend in the circumferential direction inside the terminal block portion 50b and the lead wire holding portion 60.
Here, as shown in fig. 3, the terminals 40a, 40b, 40c are provided to be stacked in the axial direction inside the terminal table portion 50a and the lead wire holding portion 60. Similarly, the terminals 40d, 40e, and 40f are stacked in the axial direction inside the terminal table portion 50b and the lead wire holding portion 60. In addition, the coil 30 is omitted.
As described above, by providing the pair of terminal block portions 50a and 50b on both sides of the lead wire holding portion 60 and providing the terminals 40a to 40f so as to be stacked inside, it is possible to form a wiring structure between the terminal block portions 50a and 50b and the lead wire holding portion 60 while suppressing an increase in the dimensions in the circumferential direction and the axial direction. Therefore, according to the embodiment, the stator structure 1 can be downsized in the axial direction in addition to the circumferential direction.
In the embodiment, the same number of terminals 40 may be provided in the terminal block 50a and the terminal block 50 b. 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 downsized in the axial direction.
On the other hand, if the restriction on the dimension in the axial direction is small, it is not necessary to provide the same number of terminals 40 in the terminal block 50a and the terminal block 50 b. For example, four terminals 40 may be provided in one terminal block 50, and two terminals 40 may be provided in the other terminal block 50, or five terminals 40 may be provided in one terminal block 50, and one terminal 40 may be provided in the other terminal block 50.
In the embodiment, as shown in fig. 3, the insertion portions 61a to 61f are linearly arranged in the wire holding portion 60. Accordingly, when the lead wire 100 is resistance-welded to the terminals 40a to 40f in the insertion portions 61a to 61f, the electrodes for resistance welding can be easily brought into contact with the terminals 40a to 40 f.
Therefore, according to the embodiment, the workability when assembling the lead wire 100 to the stator structure 1 can be improved.
(stator Structure and Assembly Process of resolver)
Next, an assembly process of the stator structure 1 and the resolver according to the embodiment will be described with reference to fig. 4 to 6. Fig. 4 is a diagram (1) for explaining an assembly process of the stator structure 1 of the embodiment, and the coil 30 is omitted.
As shown in fig. 4 (a) to (c), the stator structure 1 is assembled by stacking the first insulator 21, the stator core 10, and the second insulator 22 in this order from the top with the rotation axis R of the rotor 2 (see fig. 6) as the center.
As shown in fig. 4 (a), the first insulator 21 has a ring-shaped body portion 21 a. The first insulator 21 is provided with a plurality of extending portions 21b extending radially inward from the inner peripheral portion of the main body portion 21a, a wall portion 21c projecting downward from the edge portion of the extending portion 21b, and a wall portion 21d projecting upward from the tip end portion of the extending portion 21 b.
In addition, the terminal block portion 50 and the lead wire holding portion 60 are integrally formed on the first insulator 21. Specifically, the terminal block portion 50 and the lead wire holding portion 60 are formed integrally with the main body portion 21a of the first insulator 21. When the first insulator 21 is formed integrally 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 fig. 4 (b), the stator core 10 has an annular body portion 11. Further, the stator core 10 is provided with a plurality of teeth 12 extending radially inward from the inner peripheral portion of the main body portion 11. The teeth 12 are substantially T-shaped in plan view, and include an extending portion 12a extending radially inward from the inner peripheral portion of the main body portion 11, and a protruding portion 12b protruding circumferentially on both sides from the tip end of the extending portion 12 a. In addition, a gap 13 is formed between the adjacent teeth 12.
As shown in fig. 4 (c), the second insulator 22 has an annular body portion 22 a. The second insulator 22 is provided with a plurality of extending portions 22b extending radially inward from the inner peripheral portion of the main body portion 22a, a wall portion 22c projecting upward from the inner peripheral portion of the main body portion 22a and the edge portions of the extending portions 22b, and a wall portion 22d projecting downward from the tip end portion of the extending portion 22 b.
In the assembly process of the stator structure 1, the teeth 12 of the stator core 10 are sandwiched from above and below by the extending portions 21b of the first insulator 21 and the extending portions 22b of the second insulator 22. At this time, the wall portion 21c of the first insulator 21 is inserted into the gap 13 of the stator core 10, and the wall portion 22c of the second insulator 22 is inserted into the gap 13 of the stator core 10.
Here, as shown in fig. 4 (c), the wall portion 22c of the second insulator 22 is formed such that one height is higher than the other height in the circumferential direction. This allows the entire upper surface of the wall portion 22c to be inserted into the gap 13 without being accurately aligned, and therefore the wall portion 22c can be easily inserted into the gap 13. Therefore, according to the embodiment, the assembling workability of the stator structure 1 can be improved.
Although not explicitly shown in fig. 4 (a), the wall portion 21c of the first insulator 21 has the same shape, and therefore the assembling workability of the stator structure 1 can be similarly improved.
Next, as shown in fig. 5, the coil 30 is wound around the laminated body including the first insulator 21, the stator core 10, and the second insulator 22 at the position of the extension portion 12a of the tooth 12. Fig. 5 is a diagram (2) for explaining an assembly process of the stator structure 1 according to the embodiment.
In this step, the coil 30 is wound around each tooth 12 by a predetermined number of turns, and a loose pin is inserted into the through hole 51 (see fig. 2). Then, the predetermined terminal 40 is wound with the predetermined end of the winding while the winding is wound by the loosening pin. Then, the loose pins are taken out of the through holes 51, and the stator structure 1 shown in fig. 5 is obtained.
As shown in fig. 6, a rotor 2 is provided inside the obtained stator structure 1, thereby obtaining a resolver 3. Fig. 6 is a plan view showing the structure of the resolver 3 according to the embodiment. The resolver 3 of the embodiment is a VR (Variable Reluctance) type resolver, and the rotor 2 is fixed to an output shaft of the rotating electrical machine and rotates with the rotation of the output shaft. This enables detection of the rotation angle of the output shaft of the rotating electric machine.
(other embodiments)
Next, a stator structure 1 according to another embodiment will be described with reference to fig. 7. Fig. 7 is a perspective view showing a stator structure 1 according to another embodiment. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
In the stator structure 1 according to the embodiment shown in fig. 1 and the like, both the terminal block portion 50 and the lead wire holding portion 60 are formed integrally with the first insulator 21, and the lead wire holding portion 60 is formed with the insertion portions 61(61a to 61 f). Then, the lead 100 is inserted into the insertion portions 61a to 61f, and the other end of the terminal 40 is connected to the lead 100.
In contrast, the stator structure 1 of the other embodiment shown in fig. 7 is in the form of a connector structure in which a connection portion is formed instead of a method of directly connecting the lead wire 100 and the lead wire holding portion 60.
As shown in fig. 7, the stator structure 1 of the other embodiment includes a connector housing 60A instead of the lead wire holding portion 60. The connector housing 60A is another example of the wire holding portion 60.
The connector housing 60A extends from the main body portion 11 of the stator core 10 in the axial direction. The connector housing 60A is integrally molded with the first insulator 21, is provided between the pair of terminal table portions 50, and has a shape capable of being fitted to the connector 110. The connector 110 integrally holds the plurality of wires 100.
The other ends of the terminals 40(40A to 40f) are disposed so as to be exposed inside the connector housing 60A, and the distal end of the lead wire 110 is provided so as to be exposed at the connector 110. Then, the lead 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 the other embodiment shown in fig. 7, since the work of connecting the lead wire 100 to the other end of the terminal 40 is not required, the workability in connecting the lead wire 100 to the terminal 40 can be improved.
While the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit thereof. 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 table portions 50a and 50b are provided on both sides of the lead wire holding portion 60 is shown, but one terminal table portion 50 may be provided adjacent to the lead wire holding portion 60.
In the embodiment, although the example in which the coil cover for protecting the coil 30 is not provided is shown, 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 an outer rotor type resolver.
As described above, the stator structure 1 of the embodiment includes: stator core 10, insulator 20, a plurality of coils 30, a plurality of terminals 40, terminal block 50, and wire holding portion 60. The stator core 10 includes an annular main body portion 11, and a plurality of teeth 12 extending in a radial direction from the main body portion 11 and arranged along a circumferential direction of the main body portion 11. An 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 wound around one end of the plurality of terminals 40. The terminal block 50 is disposed on the main body 11 of the stator core 10 and holds the plurality of terminals 40. The wire holding portion 60 is disposed in the main body portion 11 of the stator core 10, and receives the other ends of the plurality of terminals 40, and the wire 100 is inserted in the axial direction and connected to the other ends of the plurality of terminals 40. This improves the mountability of the rotating electrical machine.
In the stator structure 1 of the embodiment, a pair of terminal block portions 50a and 50b are provided, and the pair of terminal block portions 50a and 50b are disposed on both sides of the lead wire holding portion 60. This enables the stator structure 1 to be reduced in size in the axial direction.
In the stator structure 1 of the embodiment, the pair of terminal table portions 50a and 50b hold the same number of terminals 40, respectively. This enables further downsizing of the stator structure 1 in the axial direction.
In addition, in the stator structure 1 of the embodiment, the insulator 20, the terminal block portion 50, and the wire holding portion 60 are integrally formed. This can improve the reliability of the stator structure 1.
In addition, in the stator structure 1 of the embodiment, the plurality of terminals 40 are provided to be stacked in the axial direction inside the terminal table portion 50 and the lead wire holding portion 60. This enables the stator structure 1 to be reduced in size in the axial direction in addition to the radial direction.
In the stator structure 1 of 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. This improves workability in connecting the lead wire 100 to the terminal 40.
The resolver 3 according to the embodiment includes the rotor 2 and the stator structure 1. This can realize the resolver 3 having improved mountability to the rotating electrical machine.
The present invention is not limited to the above embodiments. The present invention also includes a technical means in which the above-described respective constituent elements are appropriately combined. Further effects and modifications can be easily derived by those skilled in the art. Therefore, the further embodiments of the present invention are not limited to the above-described embodiments, and various modifications can be made.
Description of reference numerals
1 … stator structure, 2 … rotor, 3 … resolver, 10 … stator core, 11 … main body, 12 … teeth, 20 … insulator, 21 … first insulator, 22 … second insulator, 30 … coil, 40a to 40f … terminal, 50 … terminal table portion, 51 … through hole, 60 … wire holding portion, 60a … connector housing, 61a to 61f … insertion portion, 100 … wire, 110 … connector.
Claims (5)
1. A stator structure is characterized by comprising:
a stator core having an annular main body portion and a plurality of teeth extending radially from the main body portion and arranged along a circumferential direction of the main body portion;
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 an axial direction of the stator core, ends of windings constituting the coil being wound around one ends of the plurality of terminals;
a terminal block portion that is disposed on the main body portion of the stator core and holds the plurality of terminals; and
a wire holding portion that is disposed on the main body portion of the stator core, that houses the other ends of the plurality of terminals, and that is connected to the other ends of the plurality of terminals so that a wire is inserted in the axial direction,
a pair of the terminal block portions are provided, the pair of terminal block portions being disposed on both sides of the wire holding portion in the circumferential direction,
the terminal block portion is formed in a substantially circular arc shape along the circumferential direction,
a portion that joins one end of the terminal to the other end of the terminal extends in the circumferential direction, and the joined portion is provided to be stacked in the axial direction inside the terminal table portion and the wire holding portion.
2. The stator construction according to claim 1,
the pair of terminal block portions hold the same number of terminals, respectively.
3. The stator construction according to claim 1,
the insulator, the terminal block portion, and the wire holding portion are integrally formed.
4. The stator construction according to claim 1,
the wire holding portion is formed as a connector housing,
the lead wire is held by a connector capable of fitting with the connector housing.
5. A resolver is characterized by comprising:
a rotor; and
the stator structure according to any one of claims 1 to 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-167679 | 2017-08-31 | ||
| JP2017167679 | 2017-08-31 | ||
| PCT/JP2018/032064 WO2019044953A1 (en) | 2017-08-31 | 2018-08-30 | Stator structure and resolver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111095754A CN111095754A (en) | 2020-05-01 |
| CN111095754B true CN111095754B (en) | 2022-06-03 |
Family
ID=65527347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880055305.9A Active CN111095754B (en) | 2017-08-31 | 2018-08-30 | Stator structure and rotary transformer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6983246B2 (en) |
| CN (1) | CN111095754B (en) |
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| JP7466868B2 (en) * | 2020-09-11 | 2024-04-15 | 多摩川精機株式会社 | Resolver stator structure |
| CN113782315B (en) * | 2021-09-15 | 2022-06-03 | 上海赢双电机有限公司 | Split type insulating skeleton structure of rotary transformer |
| JP7695858B2 (en) | 2021-10-15 | 2025-06-19 | ミネベアミツミ株式会社 | Resolver |
| CN118232589A (en) * | 2024-04-30 | 2024-06-21 | 东莞市本末科技有限公司 | Motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106287A (en) * | 2006-07-04 | 2008-01-16 | 本田技研工业株式会社 | The stator structure of the motor |
| CN102377254A (en) * | 2011-10-25 | 2012-03-14 | 佛山市威灵洗涤电机制造有限公司 | Stator structure of molding electrical machine for washing machine |
| CN105556804A (en) * | 2013-09-17 | 2016-05-04 | 松下知识产权经营株式会社 | Brushless DC motor and ventilation device having same mounted therein |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3790958B2 (en) * | 2001-10-12 | 2006-06-28 | ミネベア株式会社 | Resolver lead terminal structure |
| JP2004072867A (en) * | 2002-08-05 | 2004-03-04 | Tamagawa Seiki Co Ltd | Terminal connection structure of stator coil of resolver stator |
| JP4491544B2 (en) * | 2003-12-18 | 2010-06-30 | 多摩川精機株式会社 | Resolver stator structure |
| JP4594026B2 (en) * | 2004-10-07 | 2010-12-08 | 多摩川精機株式会社 | Resolver external conductor fixing structure |
| JP5703604B2 (en) * | 2010-03-03 | 2015-04-22 | 日本電産株式会社 | Bus bar unit and motor |
| JP5604666B2 (en) * | 2010-12-20 | 2014-10-08 | 多摩川精機株式会社 | Resolver structure |
| JP5547687B2 (en) * | 2011-05-27 | 2014-07-16 | Ｃｋｄ株式会社 | Multistage resolver |
| JP6227315B2 (en) * | 2013-07-29 | 2017-11-08 | ミネベアミツミ株式会社 | VR-type resolver stator structure |
| JP6267907B2 (en) * | 2013-09-26 | 2018-01-24 | 株式会社ミツバ | Busbar unit and brushless motor |
| JP6303093B2 (en) * | 2014-03-25 | 2018-04-04 | 多摩川精機株式会社 | Manufacturing method of connector for servo motor with integrated angle type connector for in-vehicle use |
| JP6208717B2 (en) * | 2015-06-24 | 2017-10-04 | ミネベアミツミ株式会社 | Resolver |
| JP6406206B2 (en) * | 2015-10-20 | 2018-10-17 | トヨタ自動車株式会社 | Terminal block connection structure of rotating electrical machine |
| JP6378660B2 (en) * | 2015-11-16 | 2018-08-22 | ミネベアミツミ株式会社 | Stator structure and resolver |
| JP2017131030A (en) * | 2016-01-20 | 2017-07-27 | 多摩川精機株式会社 | Resolver lead wire fixing structure |
-
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- 2018-08-30 JP JP2019539607A patent/JP6983246B2/en active Active
- 2018-08-30 CN CN201880055305.9A patent/CN111095754B/en active Active
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101106287A (en) * | 2006-07-04 | 2008-01-16 | 本田技研工业株式会社 | The stator structure of the motor |
| CN102377254A (en) * | 2011-10-25 | 2012-03-14 | 佛山市威灵洗涤电机制造有限公司 | Stator structure of molding electrical machine for washing machine |
| CN105556804A (en) * | 2013-09-17 | 2016-05-04 | 松下知识产权经营株式会社 | Brushless DC motor and ventilation device having same mounted therein |
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| Publication number | Publication date |
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| CN111095754A (en) | 2020-05-01 |
| JPWO2019044953A1 (en) | 2020-10-01 |
| WO2019044953A1 (en) | 2019-03-07 |
| JP6983246B2 (en) | 2021-12-17 |
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