Stator and Rotating Electric Machine

Abstract

To provide a stator and a rotary electric machine capable of suppressing buckling of a core sheet.SOLUTION: A stator 11 includes: a stator core 20 composed of a plurality of core sheets layered in an axial direction, having an annular yoke part 25 and a teeth 23 extending from the yoke part 25 toward an inner circumference; a bobbin 30 covering the teeth 23; a coil 40 wound around the bobbin 30; and a resin mold part 50 as a pressing member having an abutting part 54 abutting on an axial direction end face 25a of the yoke part 25.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a stator and a rotating electric machine.

Background Art

[0002] For example, the stator described in Patent Document 1 includes a stator core formed of a plurality of core sheets laminated in the axial direction. The stator core has an annular yoke portion and teeth extending from the yoke portion to the inner peripheral side. Coils are wound around the teeth. The stator core is housed in a housing in such a manner that the outer peripheral surface of the yoke portion contacts the inner peripheral surface of the housing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the stator as described above, for example, due to the force received by the yoke portion from the housing, there is a risk that the portion of the core sheet constituting the yoke portion may buckle. An object of the present disclosure is to provide a stator and a rotating electric machine capable of suppressing buckling of a core sheet.

Means for Solving the Problems

[0005] The stator for solving the above problems is formed of a plurality of core sheets (24) laminated in the axial direction, and includes a stator core (20) having an annular yoke portion (25) and teeth (23) extending from the yoke portion to the inner peripheral side, a bobbin (30) covering the teeth, a coil (40) wound around the bobbin, and a pressing member (50) having a contact portion (54) that contacts the axial end surface (25a) of the yoke portion.

[0006] A rotating electric machine that solves the above problems is a rotating electric machine (10) comprising a stator (11) and a rotor (12) facing the stator, wherein the stator is formed of a plurality of core sheets (24) stacked in the axial direction and comprises a stator core (20) having an annular yoke portion (25) and teeth (23) extending inward from the yoke portion, a bobbin (30) covering the teeth, a coil (40) wound around the bobbin, and a retaining member (50) having a contact portion (54) that abuts against the axial end face (25a) of the yoke portion.

[0007] According to the stator and rotating electric machine described above, buckling of the portion constituting the yoke portion in the core sheet can be suppressed by a retaining member having a contact portion that abuts against the axial end face of the yoke portion. [Brief explanation of the drawing]

[0008] [Figure 1] This is a schematic diagram of a rotating electric machine in an embodiment. [Figure 2] This is a perspective view showing a stator of the same configuration in a partial cross-section. [Figure 3] This is a schematic cross-sectional view of a stator of the same configuration. [Figure 4] This is a schematic side view of a stator of the same configuration. [Figure 5] This is a schematic side view of the stator in the modified example. [Figure 6] This is a schematic side view of the stator in the modified example. [Modes for carrying out the invention]

[0009] The following describes one embodiment of a stator and a rotating electric machine with reference to the drawings. In each drawing, some parts of the configuration may be exaggerated or simplified for ease of explanation. Also, the dimensional ratios of each part may differ in each drawing.

[0010] As shown in Figure 1, the rotating electric machine 10 comprises a stator 11 and a rotor 12 facing the stator 11. The stator 11 is annular in shape. The rotor 12 is positioned inside the stator 11. The rotor 12 has a rotation axis 13. The rotor 12 is radially opposed to the stator 11. The stator 11 is housed in a cylindrical housing 14. The stator 11 is housed in the housing 14, for example, by shrink fitting.

[0011] (Configuration of State 11) As shown in Figures 1 and 2, the stator 11 comprises a stator core 20, a bobbin 30, a coil 40, and a resin molded part 50 as a retaining member. In Figure 2, a portion of the resin molded part 50 is shown in cross-section.

[0012] The stator core 20 has a plurality of segmented cores 21 arranged in an annular shape along the circumferential direction of the stator 11. For example, there are 12 segmented cores 21. The stator core 20 has, for example, 12 segmented cores 21. Each segmented core 21 is made of, for example, a magnetic metal material. In the following description, the circumferential direction of the stator 11, the radial direction of the stator 11, and the axial direction of the stator 11 may be simply referred to as "circumferential direction," "radial direction," and "axial direction," respectively.

[0013] Each segmented core 21 has a core back 22 and teeth 23 extending radially from the core back 22. Multiple segmented cores 21 are arranged circumferentially such that each core back 22 forms an annular shape overall. Each tooth 23 extends radially.

[0014] In each segmented core 21, the teeth 23 protrude radially inward from, for example, the inner surface of the core back 22. The tip of the tooth 23 is oriented toward the axis L1 of the stator 11. The base of the tooth 23 is the radially outer end of the tooth 23.

[0015] As shown in FIG. 3, each divided core 21 is formed by a plurality of core sheets 24 laminated in the axial direction. Each core sheet 24 is made of, for example, an electromagnetic steel sheet. Each core sheet 24 is fixed to each other by, for example, adhesion.

[0016] As shown in FIGS. 1 and 2, in a state where the divided cores 21 are arranged annularly in the circumferential direction, the core backs 22 of the divided cores 21 are arranged annularly along the circumferential direction. Each core back 22 constitutes an annular yoke portion 25. Each core back 22 is in contact with the adjacent core backs 22 on both sides in the circumferential direction. The radially outer surface of each core back 22 forms the outer peripheral surface of the yoke portion 25. The outer peripheral surface of the yoke portion 25, that is, the radially outer surface of each core back 22, contacts the inner peripheral surface of the housing 14. Each tooth 23 extends from the yoke portion 25 toward the inner peripheral side.

[0017] As shown in FIG. 3, at each of both axial ends of the stator core 20, the axial end surfaces of the core backs 22 form the axial end surfaces 25a of the yoke portion 25. The axial end surfaces of each core back 22 are, for example, located on the same plane perpendicular to the axis L1. That is, the axial end surfaces 25a on both axial sides of the yoke portion 25 are planar perpendicular to the axis L1.

[0018] Each divided core 21 is provided with a bobbin 30. A plurality of bobbins 30 are provided corresponding to each of the plurality of divided cores 21, for example. The bobbin 30 has a tooth covering portion 31 that covers the teeth 23. The coil 40 is wound around each tooth covering portion 31. That is, the tooth covering portion 31 of the bobbin 30 is interposed between the divided core 21 and the coil 40. Thereby, the bobbin 30 electrically insulates between the divided core 21 and the coil 40. Incidentally, one divided core 21, one bobbin 30, and one coil 40 constitute one integral component.

[0019] The bobbin 30 is made of an insulator such as synthetic resin. As the material of the bobbin 30, for example, an epoxy resin or the like can be used. The bobbin 30 is, for example, molded with respect to the split core 21. That is, it is integrally formed with respect to the split core 21. Thereby, it becomes possible to make the bobbin 30 adhere to the split core 21 in a close contact state.

[0020] As a configuration different from that of the present embodiment, for example, when a bobbin manufactured separately from the split core 21 is attached to the split core 21 by post - attachment, there is a concern that a large gap may occur between the split core 21 and the bobbin. In that regard, by molding the bobbin 30 with respect to the split core 21 as in the present embodiment, it is possible to eliminate the gap between the split core 21 and the bobbin 30 or make the gap extremely small.

[0021] (Configuration of the resin mold part 50) As shown in FIG. 2, the resin mold part 50, for example, collectively covers a plurality of coils 40. As shown in FIG. 3, the coil 40 has a first end part 41 which is one end part in the axial direction and a second end part 42 which is the other end part in the axial direction. The resin mold part 50 has a first covering part 51 that covers the first end part 41 of the coil 40 and a second covering part 52 that covers the second end part 42 of the coil 40. The first covering part 51 covers the outside in the axial direction and both sides in the radial direction of the first end part 41 of the coil 40. The second covering part 52 covers the outside in the axial direction and both sides in the radial direction of the second end part 42 of the coil 40.

[0022] As shown in FIGS. 1 and 2, the resin mold part 50 has a connecting part 53 that connects the first covering part 51 and the second covering part 52 through between the teeth 23 adjacent in the circumferential direction. The connecting part 53 is filled between each of the plurality of teeth 23. The first covering part 51 and the second covering part 52 are connected to each other by a plurality of connecting parts 53.

[0023] In the stator 11, for example, an integral component including a divided core 21, bobbins 30, and coils 40 is arranged in a ring, and each coil 40 is electrically connected, for example, by busbars. Then, for example, a resin molded part 50 is molded to cover each coil 40, each bobbin 30, and the busbars together.

[0024] The resin molded part 50 is formed of a resin with a higher thermal conductivity than the bobbin 30, for example. As the material for the resin molded part 50, for example, an epoxy resin or an unsaturated polyester resin mixed with alumina powder can be used. The thermal conductivity of the bobbin 30 is set to, for example, 1.0 (W / m·K). In contrast, it is preferable that the thermal conductivity of the resin molded part 50 be set to, for example, 2.0 (W / m·K) or higher.

[0025] Furthermore, it is preferable that the resin molded portion 50 has a structure with a high spring constant. A high spring constant of the resin molded portion 50 makes it possible to keep the volume of the resin molded portion 50 necessary to suppress buckling of the yoke portion 25 small. As a result, it becomes possible to keep the weight of the resin molded portion 50 small.

[0026] As shown in Figures 2 and 3, each of the first covering portion 51 and the second covering portion 52 has a contact portion 54 that abuts against the axial end face 25a of the yoke portion 25. The contact portion 54 of the first covering portion 51 abuts against the axial end face 25a on one axial side in the axial direction. The contact portion 54 of the second covering portion 52 abuts against the axial end face 25a on the other axial side in the axial direction. In other words, the contact portions 54 of the first covering portion 51 and the second covering portion 52 are provided so as to sandwich the yoke portion 25 in the axial direction.

[0027] In this embodiment, the contact portion 54 forms a continuous annular shape along the circumferential direction. The contact portion 54 abuts against each axial end face 25a along the entire circumferential direction of the yoke portion 25. That is, as shown in Figure 4, the contact portion 54 abuts against the axial end face 25a at the boundary portion 22x where adjacent core backs 22 in the circumferential direction meet each other. In addition, the contact portion 54 abuts against the axial end face 25a at the circumferential central portion 22y of each core back 22.

[0028] The operation of this embodiment will now be described. The yoke portion 25 of the stator core 20 is subjected to a radially inward force from the housing 14. When the stator core 20 is assembled to the housing 14 by shrink fitting, the yoke portion 25 is subjected to a more pronounced radially inward force from the housing 14. As a result, each core back 22 constituting the yoke portion 25 experiences a force moving toward each other in the circumferential direction. Therefore, if no countermeasures are taken, there is a risk that the core sheet 24 in each core back 22 constituting the yoke portion 25 may buckle, for example, due to stress during shrink fitting.

[0029] Therefore, in this embodiment, the contact portion 54 of the resin molded portion 50 is in contact with the axial end face 25a of the yoke portion 25. As a result, when each core back 22 constituting the yoke portion 25 receives force from the housing 14, the contact portion 54 presses against the axial end face 25a of the yoke portion 25, thereby suppressing buckling of the portion of the core sheet 24 that constitutes the core back 22. Furthermore, the force that causes the yoke portion 25 to buckle is applied in a direction that expands on both axial sides, and this force is received by the contact portions 54 of the first covering portion 51 and the second covering portion 52. Here, since the first covering portion 51 and the second covering portion 52 are connected by a connecting portion 53, the force that causes the yoke portion 25 to buckle can be suitably received by the contact portions 54 of the first covering portion 51 and the second covering portion 52.

[0030] Furthermore, the rotor 12 rotates due to the interaction with the rotating magnetic field generated in the stator 11 by the energization of each coil 40. At this time, the coils 40 generate heat due to the energization. Some of the heat from the coils 40 is released to the outside through the resin molded part 50. One example of a heat dissipation path is a heat dissipation path from the coils 40 to the stator core 20 via the resin molded part 50. Moreover, by forming the resin molded part 50 from a material with a higher thermal conductivity than the bobbin 30, it is possible to further improve the heat dissipation performance.

[0031] The effects of this embodiment will now be explained. (1) The stator 11 includes a resin molded portion 50 as a retaining member having a contact portion 54 that abuts against the axial end face 25a of the yoke portion 25. With this configuration, the resin molded portion 50 having a contact portion 54 that abuts against the axial end face 25a of the yoke portion 25 makes it possible to suppress buckling of the portion of the core sheet 24 that constitutes the yoke portion 25.

[0032] Furthermore, the contact portion 54 suppresses buckling of the core sheet 24, making it possible to eliminate the need for crimping to fix each core sheet 24 to each other, or to minimize the number of crimping points. This makes it possible to reduce crimping losses in the magnetic flux flow inside the core sheet 24, and as a result, contributes to increasing the output power of the rotating electric machine 10.

[0033] Furthermore, since buckling of the core sheets 24 is suppressed by the contact portion 54, it becomes possible to eliminate the need for adhesive to fix each core sheet 24 to each other, resulting in a structure in which each core sheet 24 is not fixed to each other. In this case, since no adhesive is used to bond each core sheet 24 to each other, it is possible to create a structure with excellent heat resistance.

[0034] (2) The stator core 20 is composed of a plurality of segmented cores 21 arranged along the circumferential direction. Each of the segmented cores 21 has a core back 22 that constitutes the yoke portion 25 and teeth 23 extending from the core back 22. With this configuration, the yoke portion 25 is composed of the core backs 22 of each segmented core 21. Therefore, each segmented core back 22 is more susceptible to buckling due to the force received from the housing 14. Consequently, the buckling suppression effect of the contact portion 54 can be obtained more significantly.

[0035] (3) The contact portion 54 is in contact with the axial end face 25a along the entire circumferential direction of the yoke portion 25. With this configuration, in each core back 22, both the boundary portion 22x and the circumferential central portion 22y, which are prone to buckling, can be held down by the contact portion 54. Therefore, the contact portion 54 can more effectively suppress buckling of the yoke portion 25.

[0036] (4) The resin molded part 50 covers the coil 40. The coil 40 has a first end 41 which is one end in the axial direction and a second end 42 which is the other end in the axial direction. The resin molded part 50 has a first covering part 51 which covers the first end 41 of the coil 40, a second covering part 52 which covers the second end 42 of the coil 40, and a connecting part 53 which connects the first covering part 51 and the second covering part 52 by passing between adjacent coils 40 in the circumferential direction. The contact part 54 is included in the first covering part 51 and the second covering part 52, respectively. With this configuration, the contact part 54 of the first covering part 51 and the contact part 54 of the second covering part 52 sandwich the yoke part 25 in the axial direction. The first covering part 51 and the second covering part 52 are connected to each other by the connecting part 53. Therefore, on both axial sides of the yoke portion 25, the contact portions 54 can more effectively suppress buckling of the yoke portion 25.

[0037] (5) The stator core 20 has a plurality of teeth 23 arranged along the circumferential direction. Multiple coils 40 are provided, each corresponding to one of the multiple teeth 23. The resin molded part 50 covers the multiple coils 40 together. The heat dissipation of the coils 40 via the resin molded part 50 can be improved. As a result, it can contribute to increasing the output of the rotating electric machine 10.

[0038] (6) The resin molded part 50 is made of a material with a higher thermal conductivity than the bobbin 30. This makes it possible to further improve the heat dissipation of the coil 40 through the resin molded part 50.

[0039] (Example of change) This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0040] For example, as shown in Figure 5 or Figure 6, the contact portion 54 may be configured to partially contact the axial end face 25a of the yoke portion 25 in the circumferential direction. Such a configuration makes it possible to reduce the volume of the resin molded portion 50, and as a result, contributes to reducing the weight of the stator 11.

[0041] In the configuration shown in Figure 5, the contact portion 54 abuts against the axial end face 25a at each boundary portion 22x where adjacent core backs 22 in the circumferential direction come into contact with each other. With this configuration, it is possible to reduce the weight of the resin molded portion 50 while suppressing buckling of the boundary portions 22x, which are prone to buckling in the core back 22. In this case, the resin molded portion 50, including the contact portion 54, may be scattered in the circumferential direction. Alternatively, as shown in Figure 5, the resin molded portion 50 may not cover the axially outer side of the coil 40.

[0042] In the configuration shown in Figure 6, the contact portion 54 abuts against the axial end face 25a at the circumferential center portion 22y of each core back 22. With this configuration, it is possible to reduce the weight of the resin mold portion 50 while suppressing buckling of the circumferential center portion 22y of the core back 22, which is prone to buckling.

[0043] The resin molded portion 50 may be formed from a material having the same thermal conductivity as the bobbin 30, or from a material having lower thermal conductivity than the bobbin 30. Each core sheet 24 may be fixed to each other by, for example, crimping. Alternatively, each core sheet 24 may be fixed to each other by, for example, crimping and adhesive. Alternatively, each core sheet 24 may be fixed to each other by, for example, welding such as laser welding.

[0044] • As a temporary fixation until the resin molded portion 50 is formed, an adhesive may be used to fix each core sheet 24 to each other. In this case, the adhesive strength of the adhesive is sufficient as long as it is sufficient to form the resin molded portion 50, so there are few constraints on the selection of the adhesive material.

[0045] The stator core 20 is not limited to being formed from multiple segmented cores 21, but may also be formed from a single integrated component. In such a configuration, buckling of the portion constituting the yoke portion 25 in the core sheet 24 can be suppressed by the contact portion 54.

[0046] • In the above embodiment, the bobbin 30 is molded onto the stator core 20, but the invention is not limited to this, and for example, a separately manufactured bobbin may be attached to the stator core 20.

[0047] The number of divided cores 21 and teeth 23 is not limited to the above embodiment and can be changed as appropriate depending on the configuration. The rotating electric machine 10 in the above embodiment is an inner rotor type rotating electric machine in which the rotor 12 is arranged on the inner circumference side of the stator 11. However, it may also be applied to an outer rotor type rotating electric machine in which the rotor is arranged on the outer circumference side of the stator.

[0048] The embodiments and modifications disclosed herein are illustrative in all respects, and the present invention is not limited to these examples. That is, the scope of the present invention is indicated by the claims, and all modifications within the meaning and scope equivalent to the claims are intended to be included.

[0049] (Note) The features of this invention are as follows. [1] A stator comprising a stator core (20) formed of a plurality of core sheets (24) stacked in the axial direction, having an annular yoke portion (25) and teeth (23) extending inward from the yoke portion; a bobbin (30) covering the teeth; a coil (40) wound around the bobbin; and a retaining member (50) having a contact portion (54) that abuts against the axial end face (25a) of the yoke portion.

[0050] [2] The stator according to [1], wherein the stator core is composed of a plurality of segmented cores (21) arranged in the circumferential direction, and each of the plurality of segmented cores has a core back (22) that constitutes the yoke portion and teeth extending from the core back.

[0051] [3] The stator according to [1] or [2] above, wherein the contact portion is in contact with the axial end face over the entire circumferential direction of the yoke portion. [4] The stator according to [2] above, wherein the contact portion is in partial contact with the axial end face of the yoke portion in the circumferential direction.

[0052] [5] The stator according to [4] above, wherein the contact portion abuts the axial end face at the boundary portion (22x) where adjacent core backs in the circumferential direction are in contact with each other. [6] The stator according to [4] above, wherein the contact portion is in contact with the axial end face at the circumferential central portion (22y) of the core back.

[0053] [7] The stator according to any one of [1] to [6] above, wherein the retaining member is a resin molded portion (50) covering the coil, the coil has an axial end (41) and an axial end (42), the resin molded portion has a first covering portion (51) covering the axial end of the coil, a second covering portion (52) covering the axial end of the coil, and a connecting portion (53) connecting the first covering portion and the second covering portion, and the contact portion is included in the first covering portion and the second covering portion, respectively.

[0054] [8] The stator according to [7], wherein the stator core has a plurality of teeth arranged in the circumferential direction, a plurality of coils are provided corresponding to each of the plurality of teeth, and the resin molded portion covers the plurality of coils together.

[0055] [9] The stator according to [7] or [8] above, wherein the resin molded portion is formed of a material with a higher thermal conductivity than the bobbin.

[10] A rotating electric machine (10) comprising a stator (11) and a rotor (12) facing the stator, wherein the stator is formed of a plurality of core sheets (24) stacked in the axial direction and comprises a stator core (20) having an annular yoke portion (25) and teeth (23) extending inward from the yoke portion, a bobbin (30) covering the teeth, a coil (40) wound around the bobbin, and a retaining member (50) having a contact portion (54) that abuts against the axial end face (25a) of the yoke portion. [Explanation of symbols]

[0056] 10... Rotating electric machine, 11... Stator, 12... Rotor, 20... Stator core, 21... Split core, 22... Core back, 22x... Boundary section, 22y... Circumferential center section, 23... Teeth, 24... Core sheet, 25... Yoke section, 25a... Axial end face, 30... Bobbin, 40... Coil, 41... First end (one end in the axial direction), 42... Second end (the other end in the axial direction), 50... Resin molded section (pressure member), 51... First covering section, 52... Second covering section, 53... Connecting section, 54... Contact section.

Claims

1. A stator core (20) is formed from a plurality of core sheets (24) stacked in the axial direction, and has an annular yoke portion (25) and teeth (23) extending inward from the yoke portion. A bobbin (30) covering the teeth, The coil (40) wound around the bobbin, A retaining member (50) having a contact portion (54) that abuts against the axial end face (25a) of the yoke portion, Equipped with, The aforementioned retaining member is a resin molded portion (50) that covers the coil, The coil has one end in the axial direction (41) and the other end in the axial direction (42). The resin molded portion has a first covering portion (51) that covers one axial end of the coil, a second covering portion (52) that covers the other axial end of the coil, and a connecting portion (53) that connects the first covering portion and the second covering portion. The aforementioned contact portion is included in the first covering portion and the second covering portion, respectively. A stator in which the resin molded portion is spaced apart from the stator core, the coil, the bobbin, and the housing (14) that houses the resin molded portion.

2. The stator core is composed of a plurality of segmented cores (21) arranged along the circumferential direction, Each of the plurality of segmented cores has a core back (22) that constitutes the yoke portion and teeth extending from the core back. The stator according to claim 1.

3. The aforementioned contact portion is in contact with the axial end face of the yoke portion over the entire circumferential direction. The stator according to claim 1 or claim 2.

4. The abutment portion partially abuts the axial end face of the yoke portion in the circumferential direction. The stator according to claim 2.

5. The abutment portion abuts the axial end face at the boundary portion (22x) where adjacent core backs in the circumferential direction come into contact with each other. The stator according to claim 4.

6. The abutment portion abuts the axial end face at the circumferential central portion (22y) of the core back. The stator according to claim 4.

7. The stator core has a plurality of teeth arranged in the circumferential direction, The coils are provided in multiple quantities, each corresponding to one of the multiple teeth. The aforementioned resin molded portion covers the plurality of coils together. The stator according to claim 1.

8. The resin mold portion is formed of a material with a higher thermal conductivity than the bobbin. The stator according to claim 1.

9. A stator core (20) formed of a plurality of core sheets (24) stacked in the axial direction, having an annular yoke portion (25) and teeth (23) extending inward from the yoke portion, A bobbin (30) covering the teeth, The coil (40) wound around the bobbin, A retaining member (50) having a contact portion (54) that abuts against the axial end face (25a) of the yoke portion, Equipped with, The stator core is composed of a plurality of segmented cores (21) arranged along the circumferential direction, Each of the plurality of segmented cores has a core back (22) that constitutes the yoke portion and teeth extending from the core back, The aforementioned retaining member is a resin molded portion (50) that covers the coil, The coil has one end in the axial direction (41) and the other end in the axial direction (42). The resin molded portion has a first covering portion (51) that covers one axial end of the coil, a second covering portion (52) that covers the other axial end of the coil, and a connecting portion (53) that connects the first covering portion and the second covering portion. The aforementioned contact portion is included in the first covering portion and the second covering portion, respectively. The stator core is housed in the housing (14) by shrink-fitting, The contact portion is a stator that partially contacts the axial end face of the yoke portion in the circumferential direction.

10. A rotating electric machine (10) comprising a stator (11) and a rotor (12) facing the stator, The stator is, A stator core (20) is formed from a plurality of core sheets (24) stacked in the axial direction, and has an annular yoke portion (25) and teeth (23) extending inward from the yoke portion. A bobbin (30) covering the teeth, The coil (40) wound around the bobbin, A retaining member (50) having a contact portion (54) that abuts against the axial end face (25a) of the yoke portion, Equipped with, The aforementioned retaining member is a resin molded portion (50) that covers the coil, The coil has one end in the axial direction (41) and the other end in the axial direction (42). The resin molded portion has a first covering portion (51) that covers one axial end of the coil, a second covering portion (52) that covers the other axial end of the coil, and a connecting portion (53) that connects the first covering portion and the second covering portion. The aforementioned contact portion is included in the first covering portion and the second covering portion, respectively. A rotating electric machine wherein the resin molded portion is spaced apart from the stator core, the coil, the bobbin, and the housing (14) that houses the resin molded portion.