JP6733373B2 - Rotating electric machine - Google Patents

Description

The present invention relates to a rotary electric machine, and more particularly to a rotary electric machine including a conductive member to which external wiring for supplying power to a main body of a rotary electric machine is connected.

BACKGROUND ART Conventionally, there is known a motor including a conductive member to which external wiring for supplying power to a rotating electric machine body is connected (see, for example, Patent Document 1).

Patent Document 1 discloses a motor including a housing that covers an opening of a motor case. In this motor, the housing is provided with a hole for inserting a wire harness for supplying power to the drive mechanism of the motor. A terminal is provided at the tip of the wire harness. Further, the housing is provided with an accommodating portion (hole) for accommodating the nut. Then, the terminal is fixed to the housing by screwing the screw through the terminal into the nut housed in the housing portion.

Further, the housing portion in which the nut is housed has a concave shape that is recessed along the rotation axis direction. Further, the accommodating portion is considered to be approximately the same size as the nut. That is, the nut is accommodated in the accommodating portion in a state where the outer surface of the nut is in contact with the inner surface of the concave accommodating portion (the nut cannot move).

JP, 2003-250242, A

However, in the motor described in Patent Document 1, the nut is accommodated in the accommodating portion in a state where the outer surface of the nut is in contact with the inner side surface of the concave accommodating portion (the nut cannot move). For this reason, when the pressure inside the motor case (case portion) becomes high and a force for pushing the wire harness out (a force for pulling the wire harness out) acts on the wire harness, The force that pushes out the conductive member) is applied to the housing portion of the housing via the nut. As a result, there is a problem that the housing and the motor case may be distorted.

The present invention has been made to solve the above problems, and one object of the present invention is to prevent the housing portion from being distorted due to the force of pushing the conductive member to the outside. An object is to provide a rotating electric machine that can be suppressed.

In order to achieve the above object, a rotating electrical machine according to one aspect of the present invention provides a case portion in which a rotor and a stator are housed, a housing portion provided to cover an opening of the case portion, and a rotating electrical machine main body. And an accommodating portion for accommodating a first fastening member for attaching the conductive member to the housing portion. The accommodating portion is substantially the same as the first fastening member in plan view. In a plan view, the first accommodating portion having the same size is larger than the first fastening member, and in the state where the first fastening member is accommodated in the first accommodating portion, the second fastening member is connected to the second fastening member via the conductive member. And a second accommodating portion in which the first fastening member accommodated in the first accommodating portion moves and is accommodated by being fastened to the first fastening member.

In the rotary electric machine according to one aspect of the present invention, as described above, the accommodation portion is larger than the first fastening member in plan view, and the conductive member is accommodated in the state where the first fastening member is accommodated in the first accommodation portion. By including the second fastening member fastened to the first fastening member via the second fastening member, the first fastening member accommodated in the first accommodation unit is moved to be accommodated in the second accommodation unit. Accordingly, since the first fastening member is accommodated in the second accommodation portion larger than the first fastening member in the state where the second fastening member is fastened to the first fastening member, the first fastening member and the second accommodation portion. There is a gap between and. As a result, even when the force that pushes the conductive member outward (the force that the conductive member tries to come out) acts, the first fastening member moves together with the conductive member, so the conductive member is pushed to the outside. It is possible to suppress the force that tries to be exerted on the housing portion. Accordingly, it is possible to prevent the housing portion from being distorted due to the force of pushing the conductive member to the outside.

Further, since the housing portion is prevented from being distorted, it is possible to prevent appropriate power supply from being discontinued during the operation of the rotating electric machine (difference in energization timing) due to the distortion of the housing portion. .. As a result, damage to the rotary electric machine can be suppressed. In addition, it is possible to prevent the O-ring and the like provided in the housing from being deformed in a manner different from the original way of deformation due to the distortion of the housing, so that the airtightness inside the case cannot be maintained. ..

In the rotary electric machine according to the above aspect, preferably, the first fastening member and the first fastening member are accommodated in the second accommodating portion, and the first fastening member and the first fastening member are connected to each other on a side where the external wiring of the conductive member is connected. A gap is formed between the member and the member.

According to this structure, when a force that pushes the conductive member to the outside acts on the conductive member, the conductive member can be easily moved in the direction in which the external wiring is connected.

In the rotary electric machine according to the above aspect, preferably, the first fastening member has a polygonal shape in a plan view, and the first accommodating portion corresponds to the first fastening member having a polygonal shape in a plan view. The second accommodating portion having a polygonal shape is provided so as to be continuous with a pair of opposing surfaces of the first accommodating portion having a polygonal shape, and the first fastening member is provided in the second accommodating portion. It has a contact surface which contacts the first fastening member when it is stored.

According to this structure, when the first fastening member is accommodated in the second accommodating portion, the first fastening member comes into contact with the pair of contact surfaces. Therefore, even when the first fastening member is accommodated in the second accommodating portion, The contact surface can prevent the fastening member from rotating.

In the rotating electric machine according to the above aspect, a positioning member having a substantially L shape for positioning the conductive member is preferably provided between the conductive member and the second fastening member, and the conductive member is a housing. It is configured to be inserted into a hole provided in the hole, the conductive member is provided in the vicinity of the accommodating portion so as to extend along the direction in which the conductive member is inserted into the hole, and has a substantially L-shaped positioning. A groove is provided in which the end of the member is inserted.

According to this structure, the positioning of the conductive member in the direction intersecting the insertion direction in which the conductive member is inserted into the hole can be performed by the positioning member whose end is inserted into the groove, and the conductive member is The conductive member can move along with the positioning member along the groove when a force that pushes it to the outside acts. That is, while the conductive member is positioned in the direction intersecting the insertion direction, it is possible to suppress the force of pushing the conductive member to the outside from being applied to the housing portion.

In the rotating electric machine according to the above aspect, preferably, the rotating electric machine includes a compressor motor in which a space surrounded by the case portion and the housing portion is airtight.

Here, in the motor for the compressor, since the inside of the motor (case portion) has a relatively high pressure, a force for pushing the conductive member to the outside (a force for the conductive member to come out) tends to act. .. Therefore, as in the above-described one aspect, the accommodation portion is configured to include the second accommodation portion that is larger than the first fastening member in plan view, and the force for pushing the conductive member to the outside is It is particularly effective for the compressor motor to suppress the portion from being applied.

In the present application, in addition to the rotating electric machine according to the above aspect, the following other configurations are also possible.

(Appendix 1)
That is, in the rotating electrical machine according to the other configuration of the present application, the first accommodating portion and the second accommodating portion are arranged along the direction in which the first fastening member moves by fastening the second fastening member to the first fastening member. It is provided to be continuous.

(Appendix 2)
Further, in the rotating electric machine according to the other configuration of the present application, the first accommodating portion and the second accommodating portion, which are provided so as to be continuous, have a stepped shape on the side where the external wiring of the conductive member is connected. It is connected.

(Appendix 3)
Further, a rotating electric machine according to another configuration of the present application further includes a brush holder provided in the housing portion for holding the brush, and the first housing portion and the second housing portion are integrally provided in the brush holder. ing.

(Appendix 4)
Further, in a rotating electric machine according to another configuration of the present application, the first fastening member includes a nut, the second fastening member includes a bolt, and the nut is accommodated in the first accommodating portion, and the conductive member is interposed therebetween. The nut accommodated in the first accommodating portion moves to the bolt side and is accommodated in the second accommodating portion by rotating the bolt.

3 is a cross-sectional view of a motor according to an exemplary embodiment of the present invention. FIG. FIG. 3 is a perspective view of a brush holder of a motor according to an exemplary embodiment of the present invention. It is sectional drawing of the state after a bolt fastened to a nut. It is sectional drawing of the state before a bolt fastens to a nut. 3 is a perspective view of an insulating member of a motor according to an exemplary embodiment of the present invention. FIG. FIG. 3 is a perspective view of a housing of a motor according to an exemplary embodiment of the present invention. It is sectional drawing (schematic diagram) along the 200-200 line of FIG. FIG. 11 is a sectional view (schematic diagram) taken along the line 300-300 in FIG. 10. FIG. 4 is a cross-sectional view of a housing portion (before a bolt is fastened to a nut) of the motor according to the embodiment of the present invention. FIG. 3 is a cross-sectional view of a housing portion (after a bolt is fastened to a nut) of a motor according to an exemplary embodiment of the present invention. FIG. 3 is a perspective view of a housing portion (a state in which a nut and a positioning member are arranged) of the motor according to the embodiment of the present invention.

Embodiments of the present invention will be described below with reference to the drawings.

The configuration of the motor 100 according to the present embodiment will be described with reference to FIGS. 1 to 11. In the present embodiment, the motor 100 is, for example, a compressor motor 100 in which the space surrounded by the motor case 10 and the housing portion 20 is airtight.

As shown in FIG. 1, the motor 100 is provided with a motor case 10. The motor case 10 is formed in a cylindrical shape (a cup shape having an opening on the Z2 direction side). A rotor 11 and a stator 12 (permanent magnets) are housed inside the motor 100. The motor case 10 is an example of the “case portion” in the claims.

Further, the rotor 11 is provided with a rotating shaft 13. The rotating shaft 13 is supported by a bearing 14a provided on the motor case 10 and a bearing 14b provided on a housing portion 20 described later.

Further, the motor 100 is provided with a housing portion 20 made of aluminum or the like. The housing portion 20 is provided so as to cover the opening of the motor case 10. Further, an O-ring 21 is provided between the inner peripheral surface of the motor case 10 and the outer peripheral surface of the housing portion 20. This ensures the airtightness between the motor case 10 and the housing portion 20.

A commutator 15 is provided on the rotor 11. A coil wire extending from the rotor 11 is connected to the commutator 15. Further, the commutator 15 is fixed to the rotating shaft 13.

Further, as shown in FIG. 2, a brush holder 30 is provided on the Z1 direction side of the housing section 20. A plurality of brushes 31 that supply electric power to the commutator 15 of the rotor 11 are held on the Z1 direction side of the brush holder 30. Then, the commutator 15 and the brush 31 are arranged so as to face each other.

A pigtail 32 is connected to the brush 31 so as to be electrically connected to the brush 31. The pigtail 32 is composed of flexible wiring.

Further, as shown in FIGS. 3 and 4, a hole 22 is provided on the side surface side (X1 direction side) of the housing portion 20. The hole 22 is a through hole.

Here, in the present embodiment, the motor 100 is provided with the conductive member 41 that is inserted into the hole portion 22 of the housing portion 20. An external lead wire 42 for supplying power to the inside of the motor 100 (motor main body 100a) is connected to the end of the conductive member 41 on the X1 direction side. The end of the conductive member 41 on the X2 direction side is electrically connected to the pigtail 32. Specifically, a non-penetrating screw insertion hole 41a for screwing the external lead wire 42 is provided on the X1 direction side of the conductive member 41. Then, the external lead wire 42 is connected to the conductive member 41 by screwing the screw 43 into the screw insertion hole 41 a of the conductive member 41 via the external lead wire 42. The external lead wire 42 is an example of the “external wiring” in the present invention.

Further, the X2 direction side of the conductive member 41 is formed flat. A screw insertion hole 41b is provided on the X2 direction side of the conductive member 41. Then, the bolt 52 is fastened (screwed) to the nut 51 via the screw insertion hole 60b of the positioning member 60 and the screw insertion hole 41b of the conductive member 41, which are connected to the pigtail 32 described later, to thereby cause the conductive member. An end portion of the 41 on the X2 direction side is electrically connected to the pigtail 32.

An insulating member 44 that insulates the housing portion 20 from the conductive member 41 is provided between the hole 22 of the housing portion 20 and the conductive member 41. Specifically, the insulating member 44 has a substantially cylindrical shape (see FIG. 5), and the insulating member 44 includes an inner peripheral surface of the hole 22 of the housing portion 20 and an outer peripheral surface of the conductive member 41. In between, it is provided so as to fill the space between the hole 22 and the conductive member 41. Further, the conductive member 41 is configured to be inserted into the hole 44 a provided in the insulating member 44. The insulating member 44 is made of resin or the like.

Further, between the outer peripheral surface of the conductive member 41 and the inner peripheral surface of the insulating member 44, gas (air) flows out from the inner side (X2 direction side) of the housing portion 20 to the outer side (X1 direction side). An O-ring 45 having restraining elasticity is provided.

Further, between the outer peripheral surface of the insulating member 44 and the inner peripheral surface of the hole portion 22 of the housing portion 20, gas (air) from the inner side (X2 direction side) of the housing portion 20 to the outer side (X1 direction side). 2) is provided with an elastic O-ring 46.

Further, the housing portion 20 is provided with a plate member 47 so as to cover the hole portion 22. The plate-shaped member 47 is configured to be fixed to the housing portion 20 with a screw 48 in a state where the conductive member 41 is inserted into the insulating member 44 and the external lead wire 42 is connected to the conductive member 41. There is.

Here, in the present embodiment, as shown in FIG. 6, the brush holder 30 is provided with an accommodating portion 33 that accommodates a nut 51 for attaching the conductive member 41 to the housing portion 20. The housing portion 33 has a first housing portion 34 (see FIG. 7) that has substantially the same size as the nut 51 in a plan view, and a second housing portion 35 that is larger than the nut 51 in a plan view (see FIG. 8). Including and Then, when the nut 51 is accommodated in the first accommodating portion 34 (see FIG. 9 ), the bolt 52 is fastened to the nut 51 via the conductive member 41 so that the nut 51 is accommodated in the first accommodating portion 34. The nut 51 moves and is housed in the second housing portion 35 (see FIG. 10). Specifically, in a state where the nut 51 is accommodated in the first accommodating portion 34, the bolt 52 is rotated via the conductive member 41 so that the nut 51 accommodated in the first accommodating portion 34 is located on the bolt 52 side. It moves to (Z1 direction side) and is accommodated in the second accommodating portion 35. The nut 51 and the bolt 52 are examples of the “first fastening member” and the “second fastening member” in the claims, respectively.

Further, in the present embodiment, as shown in FIG. 7, the nut 51 has a substantially regular hexagonal shape in a plan view. The first accommodating portion 34 has a substantially regular hexagonal shape so as to correspond to the nut 51 having a substantially regular hexagonal shape in a plan view. The nut 51 is housed in the first housing portion 34 in a state of being lightly press-fitted. Then, the bolt 52 is inserted into the nut 51, which is lightly press-fitted into the first housing portion 34, from the Z1 direction side through the end portion of the conductive member 41 on the X2 direction side and the positioning member 60 described later. It is fastened (screwed) to the nut 51. As a result, the nut 51 accommodated in the first accommodating portion 34 moves to the Z1 direction side and is accommodated in the second accommodating portion 35.

Further, as shown in FIG. 10, the depth d of the first accommodating portion 34 (the depth d along the Z direction) is smaller than the thickness t of the nut 51 along the Z direction. The lower surface 51a (the surface on the Z2 direction side) of the nut 51 is substantially the same as the opening end 34a of the first accommodating portion 34 when the nut 51 moves in the Z1 direction and is accommodated in the second accommodating portion 35. It is at the height position, or the height position of the lower surface 51a of the nut 51 is slightly higher than the height position of the opening end 34a of the first accommodating portion 34.

Further, in the present embodiment, as shown in FIGS. 7 and 8, the second accommodating portion 35 is continuous with the pair of inner side surfaces 34c and 34d facing each other of the first accommodating portion 34 having a substantially regular hexagonal shape. And a pair of inner side surfaces 35c and 35d that come into contact with the nut 51 when the nut 51 is housed in the second housing portion 35. Specifically, the first accommodating portion 34 (see FIG. 7) has inner side surfaces 34a to 34f that have substantially equal lengths L1 in a plan view. The second accommodating portion 35 (see FIG. 8) is provided so as to be continuous with the inner side surfaces 34a and 34b of the first accommodating portion 34 in a plan view, and has a length substantially equal to the length L1 of the inner side surfaces 34a and 34b. Having inner surfaces 35a and 35b having a height L2. The second accommodation portion 35 is provided so as to be continuous with the inner side surfaces 34c and 34d of the first accommodation portion 34 in a plan view, and has a length L3 larger than the length L1 of the inner side surfaces 34c and 34d. It has side surfaces 35c and 35d. Then, the inner side surfaces 35a to 35d contact the nut 51. In this way, the inner surfaces 35a to 35d of the second housing portion 35 contact the nut 51, so that rotation of the nut 51 is suppressed even when the nut 51 is housed in the second housing portion 35 that is larger than the nut 51. To be done. The inner side surfaces 34a and 34b are examples of the "opposing surface" in the claims. The inner side surfaces 35c and 35d are examples of the "contact surface" in the claims.

Further, in the present embodiment, as shown in FIG. 8, in the state where the nut 51 is accommodated in the second accommodating portion 35, in the direction side (X1 direction side) to which the external lead wire 42 of the conductive member 41 is connected. A gap C is formed between the second accommodating portion 35 and the nut 51. Specifically, in a plan view, the inner side surface 35e connected to the inner side surface 35c of the second accommodating portion 35 and the inner side surface 35f connected to the inner side surface 35d are respectively inner side surfaces of the first accommodating portion 34. 34e (see FIG. 7) and the inner side surface 34f are arranged on the X1 direction side. Thereby, in a state where the nut 51 is accommodated in the second accommodating portion 35, a gap is formed along the X direction between the nut 51 and the inner side surface 35e and the inner side surface 35f of the second accommodating portion 35 in a plan view. C occurs.

Further, as shown in FIG. 7, in plan view, the ends of the inner side surfaces 34a to 34f are connected to each other in an arc shape. Further, as shown in FIG. 8, in plan view, the ends of the inner side surfaces 35a to 35f are connected to each other in an arc shape. Although the inner side surface 34d and the inner side surface 35d are illustrated as straight lines in FIGS. 7 and 8, in reality, they have a corrugated shape as shown in FIG. This allows the nut 51 to be easily lightly press-fitted into the first housing portion 34 and the second housing portion 35.

Further, as shown in FIG. 6, the first accommodating portion 34 and the second accommodating portion 35 are continuous along the direction (Z direction) in which the nut 51 moves when the bolt 52 is fastened to the nut 51. It is provided in. Specifically, the first accommodating portion 34 and the second accommodating portion 35 that are provided so as to be continuous have a step difference on the side (X1 direction side) in which the external lead wire 42 of the conductive member 41 is connected. Are connected in a shape.

Further, in the present embodiment, as shown in FIGS. 3 and 4, the positioning is provided between the conductive member 41 and the bolt 52 and has a substantially L-shape (see FIG. 11) for positioning the conductive member 41. A member 60 is provided. The positioning member 60 is made of conductive copper or the like and is connected (welded) to the pigtail 32. Further, the positioning member 60 is provided with a screw insertion hole 60a through which the bolt 52 passes. Then, the bolt 52 is fastened to the nut 51 via the screw insertion hole 60 a of the positioning member 60 and the screw insertion hole 41 b of the conductive member 41, so that the conductive member 41 is fixed to the housing portion 20. It

Here, in the present embodiment, as shown in FIG. 11, the conductive member 41 is provided in the vicinity of the housing portion 33 so as to extend along the direction (X direction) of being inserted into the hole portion 22 of the housing portion 20. The groove portion 36 into which the end portion 60b of the positioning member 60 having a substantially L shape is inserted is provided. Specifically, the housing portion 33 has a columnar shape (cut in half along the axial direction) provided so as to extend downward (Z2 direction) from a hole portion 30b provided in the annular portion 30a of the brush holder 30. It is provided at the lower end of the portion 30c having a cylindrical shape). The groove portion 36 is provided between the outer surface 33a of the housing portion 33 (the wall portion forming the housing portion 33) and the columnar portion 30c. Then, while the end portion 60b of the substantially L-shaped positioning member 60 is inserted into the groove portion 36, the movement of the conductive member 41 in the Y direction is restricted, but the movement in the X1 direction is not restricted. This allows the conductive member 41 to move in the X1 direction when a force that pushes the conductive member 41 outward (a force that causes the conductive member 41 to come out in the X1 direction) is exerted.

Further, the housing portion 33 (first housing portion 34, second housing portion 35) is provided integrally with the brush holder 30. For example, the brush holder 30 and the housing portion 33 (the first housing portion 34, the second housing portion 35) are integrally formed of resin.

(How to attach the conductive member)
Next, a method of attaching the conductive member 41 will be described.

First, as shown in FIG. 4, the brush holder 30 is placed on the housing portion 20. The housing portion 33 is arranged on the X2 direction side of the hole portion 22 of the housing portion 20 in a state where the brush holder 30 is placed on the housing portion 20. Then, the conductive member 41 is inserted into the hole 22 of the housing portion 20. As a result, the end portion of the conductive member 41 on the X2 direction side is arranged above the housing portion 33 (on the Z1 direction side). The nut 51 is stored in the first storage portion 34 of the storage portion 33 in advance. Here, since the size of the first accommodating portion 34 is substantially the same as the size of the nut 51, the nut 51 cannot move in the X direction.

Next, the positioning member 60 is arranged above the end of the conductive member 41 on the X2 direction side. At this time, the end portion 60b of the positioning member 60 is inserted into the groove portion 36 (see FIG. 11). Then, the bolt 52 is fastened to the nut 51 through the screw insertion hole 60a of the positioning member 60 and the screw insertion hole 41a of the conductive member 41, so that the nut 51 stored in the first storage portion 34 (see FIG. 4, FIG. 7, and FIG. 9) are accommodated in the second accommodating portion 35 (see FIGS. 3, 8, and 10). In this state, since the gap C is formed on the X1 direction side of the nut 51, the conductive member 41 can move in the X1 direction together with the nut 51. Further, since the groove portion 36 is also formed so as to extend in the X1 direction, the positioning member 60 having the end portion 60b inserted into the groove portion 36 becomes movable in the X1 direction together with the conductive member 41 and the nut 51.

In this embodiment, the following effects can be obtained.

In the present embodiment, as described above, the housing portion 33 is larger than the nut 51 in a plan view, and the bolt 52 is inserted through the conductive member 41 while the nut 51 is housed in the first housing portion 34. By being fastened to 51, the nut 51 accommodated in the first accommodating portion 34 is moved to be accommodated in the second accommodating portion 35. As a result, the nut 51 is accommodated in the second accommodating portion 35 larger than the nut 51 in the state where the bolt 52 is fastened to the nut 51, so that a gap C is generated between the nut 51 and the second accommodating portion 35. .. As a result, the nut 51 moves together with the conductive member 41 even when a force to push the conductive member 41 to the outside (a force to pull the conductive member 41 to the outside) is exerted. It is possible to suppress the force of pushing out to the housing 20 from being applied. Accordingly, it is possible to prevent the housing portion 20 from being distorted due to the force of pushing the conductive member 41 to the outside.

Further, since the housing portion 20 is suppressed from being distorted, it is possible to suppress that proper power supply is not performed during operation of the motor 100 (difference in energization timing) due to the distortion of the housing portion 20. You can As a result, damage to the motor 100 can be suppressed. Also, due to the distortion of the housing portion 20, the O-ring 21 and the like provided in the housing portion 20 may be deformed differently from the original manner of deformation, and the airtightness inside the motor case 10 may not be maintained. Can be suppressed.

Further, in the present embodiment, as described above, in the state where the nut 51 is accommodated in the second accommodating portion 35, the nut 51 is accommodated in the second accommodating portion 35 on the side where the external lead wire 42 of the conductive member 41 is connected. A gap C is formed between the nut 51 and the nut 51. Accordingly, when a force that pushes the conductive member 41 outward is applied to the conductive member 41, the conductive member 41 can be easily moved in the direction in which the external lead wire 42 is connected.

In addition, in the present embodiment, as described above, the second accommodating portion 35 is provided in a pair so as to be continuous with the pair of inner side surfaces 34c and 34d facing each other of the first accommodating portion 34 having a polygonal shape, and the nut. It has inner side surfaces 35c and 35d that come into contact with the nut 51 when 51 is housed in the second housing portion 35. Accordingly, when the nut 51 is accommodated in the second accommodating portion 35, the nut 51 abuts on the pair of inner side surfaces 35c and 35d, so that the nut 51 rotates even when the nut 51 is accommodated in the second accommodating portion 35. Can be suppressed by the inner side surfaces 35c and 35d.

Further, in the present embodiment, as described above, the end of the positioning member 60 having a substantially L-shape is provided in the vicinity of the housing portion 33 so as to extend along the direction in which the conductive member 41 is inserted into the hole portion 22. A groove 36 into which the portion 60b is inserted is provided. Accordingly, the positioning of the conductive member 41 in the direction intersecting the insertion direction in which the conductive member 41 is inserted into the hole can be performed by the positioning member 60 having the end portion 60b inserted into the groove portion 36, and the conductive member 41 can be positioned. When a force that pushes 41 out is exerted, the conductive member 41 can move along the groove 36 together with the positioning member 60. That is, while the conductive member 41 is positioned in the direction (Y direction) intersecting the insertion direction (X direction), it is possible to suppress the force of pushing the conductive member 41 to the outside from being applied to the housing portion 20. You can

Further, in the present embodiment, as described above, the motor 100 is the compressor motor 100 in which the space surrounded by the motor case 10 and the housing portion 20 is airtight. Here, in the motor 100 for a compressor, since the inside of the motor 100 (motor case 10) has a relatively high pressure, the force for pushing the conductive member 41 to the outside (the conductive member 41 tries to come out to the outside). Power) is easy to work. Therefore, the housing portion 33 is configured so as to include the second housing portion 35 that is larger than the nut 51 in plan view, and a force that pushes the conductive member 41 outward is suppressed from being applied to the housing portion 20. This is particularly effective for the motor 100 for the compressor.

Further, in the present embodiment, as described above, the first accommodating portion 34 and the second accommodating portion 35 are arranged along the direction (Z direction) in which the nut 51 moves when the bolt 52 is fastened to the nut 51. It is provided so as to be continuous. As a result, the first accommodating portion 34 and the second accommodating portion 35 are provided so as to be continuous with each other, so that the nut 51 accommodated in the first accommodating portion 34 can be smoothly moved to the second accommodating portion 35. You can

Further, in the present embodiment, as described above, the first accommodating portion 34 and the second accommodating portion 35, which are provided so as to be continuous with each other, are located on the side of the direction in which the external lead wire 42 of the conductive member 41 is connected ( In the X1 direction side), they are connected in a stepped shape. This makes it possible to easily form the gap C on the side of the conductive member 41 in the direction in which the external lead wire 42 is connected.

Further, in the present embodiment, as described above, the first accommodating portion 34 and the second accommodating portion 35 are provided integrally with the brush holder 30. Thereby, unlike the case where the 1st accommodating part 34 and the 2nd accommodating part 35 are provided separately from the brush holder 30, it can suppress that the number of parts increases.

Further, in the present embodiment, as described above, the nut 51 is accommodated in the first accommodating portion 34 by rotating the bolt 52 via the conductive member 41 while the nut 51 is accommodated in the first accommodating portion 34. The nut 51 moves to the bolt 52 side and is housed in the second housing portion 35. As a result, by rotating the bolt 52 via the conductive member 41, the nut 51 accommodated in the first accommodating portion 34 can be easily moved to the second accommodating portion 35.

It should be understood that the embodiments disclosed this time are exemplifications in all points and not restrictive. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and further includes meanings equivalent to the scope of the claims and all modifications (modifications) within the scope.

For example, in the above embodiment, the nut 51 has a substantially hexagonal shape in plan view, but the present invention is not limited to this. For example, the nut 51 may have a polygonal shape other than the substantially hexagonal shape in a plan view.

Further, in the above embodiment, an example in which the present invention is applied to the compressor motor 100 has been shown, but the present invention is not limited to this. For example, the present invention may be applied to a motor other than a compressor motor or a generator.

Further, in the above embodiment, an example in which the first accommodating portion 34 and the second accommodating portion 35 are provided so as to be continuous along the moving direction of the nut 51 when the bolt 52 is fastened to the nut 51. However, the present invention is not limited to this. For example, the first accommodating portion 34 and the second accommodating portion 35 may be separated from each other.

Further, in the above embodiment, the example in which the first accommodating portion 34 and the second accommodating portion 35 are integrally provided in the brush holder 30 is shown, but the present invention is not limited to this. For example, the first housing portion 34 and the second housing portion 35 may be provided separately from the brush holder 30.

In the above embodiment, the conductive member 41 is attached to the housing portion 20 by the nut 51 and the bolt 52, but the present invention is not limited to this. For example, the conductive member 41 may be attached to the housing portion 20 by a fastening member other than the nut 51 and the bolt 52.

10 Motor case (case part)
11 rotor 12 stator 20 housing part 22 hole part 33 accommodating part 34 first accommodating part 34c, 34d inner surface (opposing surface)
35 2nd accommodating part 35c, 35d inner side surface (contact surface)
36 Groove 41 Conductive member 42 External lead wire (external wiring)
51 Nut (first fastening member)
52 bolts (second fastening member)
60 Positioning member 60b End 100 Motor (rotary electric machine)
100a motor body (rotary electric machine body)
C gap

Claims (5)

A case portion accommodating the rotor and the stator,
A housing portion provided so as to cover the opening of the case portion,
A conductive member to which external wiring for supplying power to the rotating electric machine main body is connected,
A housing portion for housing a first fastening member for mounting the conductive member to the housing portion,
The accommodating portion is larger than the first fastening member in a plan view with a first accommodating portion having substantially the same size as the first fastening member in a plan view, and the first fastening portion is fastened to the first accommodating portion. When the second fastening member is fastened to the first fastening member via the conductive member in the state where the member is housed, the first fastening member housed in the first housing unit moves. A rotating electrical machine, comprising: a second housing portion that is housed. In a state where the first fastening member is accommodated in the second accommodating portion, a gap is formed between the second accommodating portion and the first fastening member on a side of the conductive member in which the external wiring is connected. The rotating electrical machine according to claim 1, wherein the rotating electrical machine is configured to cause. The first fastening member has a polygonal shape in a plan view,
The first accommodating portion has a polygonal shape corresponding to the first fastening member having a polygonal shape in a plan view,
A pair of the second accommodating portions are provided so as to be continuous with a pair of opposing surfaces of the first accommodating portion having the polygonal shape, and the first fastening member is accommodated in the second accommodating portion. The rotary electric machine according to claim 1 or 2, further comprising a contact surface that contacts the first fastening member. A positioning member provided between the conductive member and the second fastening member and having a substantially L-shape for positioning the conductive member;
The conductive member is configured to be inserted into a hole provided in the housing portion,
In the vicinity of the accommodating portion, the conductive member is provided so as to extend along a direction of being inserted into the hole portion, and a groove portion into which an end portion of the positioning member having the substantially L shape is inserted is provided. The rotating electrical machine according to any one of claims 1 to 3, wherein: The rotary electric machine according to any one of claims 1 to 4, wherein the rotary electric machine includes a compressor motor in which a space surrounded by the case portion and the housing portion is airtight.

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