CN115149674A - Stator and motor - Google Patents

Abstract

The invention provides a stator and a motor. One aspect of the stator according to the present invention is a stator disposed radially outside a rotor rotatable about a central axis, the stator including: a winding portion having a plurality of conductor connectors formed by connecting a plurality of conductors in series; a stator core provided with a plurality of slots through which the conductor connection body passes; and a first temperature sensor. The measurement section of the first temperature sensor is sandwiched between a first phase conductor coupling body and a second phase conductor coupling body which are conductor coupling bodies that are different phases from each other.

Description

Stator and motor

Technical Field

The invention relates to a stator and a motor.

Background

In recent years, motors such as motors for electric vehicles are provided with temperature sensors for managing the temperature during driving. Patent document 1 discloses a structure in which a temperature sensor is brought into contact with a coil wire to measure the temperature of the coil wire.

[ Prior art documents ]

[ patent document ]

[ patent document 1] Japanese patent laid-open publication No. 2013-219961

On the other hand, control is known in which a current flows only in a specific phase among wires constituting a plurality of phases of a motor. In this case, only the specific phase may generate heat. Therefore, the temperature sensors are preferably provided on the leads of all the phases, but if the temperature sensors are provided on the leads of all the phases, there is a problem that the cost increases.

Disclosure of Invention

In view of the above circumstances, an object of the present invention is to provide a stator and a motor that can reduce the number of temperature sensors to be mounted.

One aspect of the stator according to the present invention is a stator disposed radially outside a rotor rotatable about a central axis, the stator including: a winding portion having a plurality of conductor connectors formed by connecting a plurality of conductors in series; a stator core having a plurality of slots through which the conductor coupling passes; and a first temperature sensor. The measurement section of the first temperature sensor is sandwiched between a first phase conductor coupling body and a second phase conductor coupling body which are the conductor coupling bodies that are out of phase with each other.

According to one embodiment of the present invention, it is possible to provide a stator and a motor that can reduce the number of temperature sensors to be mounted.

Drawings

Fig. 1 is a sectional view of a motor according to an embodiment.

Fig. 2 is a schematic diagram showing a circuit configured by the winding portion according to the embodiment.

Fig. 3 is a schematic diagram illustrating a part of a winding structure of a first U-phase conductor connector according to an embodiment.

Fig. 4 is a schematic diagram illustrating a part of a winding structure of a second U-phase conductor connector according to an embodiment.

Fig. 5 is a schematic cross-sectional view of a slot of a portion of a stator of an embodiment.

Fig. 6 is a partially enlarged view of the region VI of fig. 5.

Fig. 7 is a sectional view of an upper end portion of a stator according to a modification.

Fig. 8 is a cross-sectional view of a lower end portion of a stator according to a modification.

(symbol description)

1, 8230, motor, 2, 8230, stator, 3, 8230, rotor, 6, 8230, insulating paper (insulating part), 20, 8230, stator core, 30, 8230, winding part, 41, 8230, first temperature sensor, 42, 8230, second temperature sensor, 41, 42, 8230, measuring part, 50, 8230, conductor, 60, 160, 8230, U phase conductor connector, 60, 160, S308230, central axis, S3082, slot, S1, S8230, first slot, S2, 8230, and second slot.

Detailed Description

The Z-axis direction shown in each drawing is a vertical direction in which a positive side is an "upper side" and a negative side is a "lower side". The central axis J appropriately shown in each drawing is an imaginary line parallel to the Z-axis direction and extending in the up-down direction. In the following description, the axial direction of the central axis J, i.e., the direction parallel to the vertical direction, may be simply referred to as "axial direction", the upper side as "one axial side", and the lower side as "the other axial side". In addition, the radial direction centered on the central axis J may be simply referred to as the "radial direction". The circumferential direction around the central axis J may be simply referred to as "circumferential direction".

The vertical direction, the upper side, and the lower side are names for explaining the arrangement of the respective parts, and the actual arrangement may be an arrangement other than the arrangement shown by these names. Further, even when the directions described as the one axial side and the other axial side are mutually replaced, the effects of the embodiments can be reproduced.

< Motor >

Fig. 1 is a sectional view of a motor 1 of the present embodiment.

The motor 1 of the present embodiment is an inner rotor type motor. The motor 1 of the present embodiment is a three-phase ac motor. The center of the motor 1 is the central axis J.

The motor 1 includes a rotor 3, a stator 2, a bearing holder 4, and a housing 1a that houses them. The motor 1 may have a bus bar unit, not shown. In this case, the bus bar unit is disposed on the upper side of the stator 2 and connected to the stator 2.

The stator 2 is provided with a first temperature sensor 41 and a second temperature sensor 42. The first temperature sensor 41 and the second temperature sensor 42 have measurement portions 41a, 42a and wiring portions 41b, 42b, respectively. The first temperature sensor 41 and the second temperature sensor 42 measure temperatures in the measurement portions 41a, 42a, respectively. The wiring portions 41b and 42b of the first temperature sensor 41 and the second temperature sensor 42 extend from the measuring portions 41a and 42a, respectively, and are connected to a control device, not shown. The temperatures of the stator 2 measured by the first temperature sensor 41 and the second temperature sensor 42 are used for control of the motor 1. The types of the first temperature sensor 41 and the second temperature sensor 42 are not particularly limited as long as they can detect the temperature of the quantum 2.

< rotor >

The rotor 3 is disposed radially inside the annular stator 2. That is, the rotor 3 is radially opposed to the stator 2. The rotor 3 has a shaft 3a, a rotor magnet 3b, and a rotor core 3c. The rotor 3 is rotatable about the central axis J.

The shaft 3a extends in the axial direction along the center axis J. The shaft 3a is, for example, a cylindrical shape extending in the axial direction with the center axis J as the center. The shaft 3a is supported by a bearing 3p, not shown, so as to be rotatable about the center axis J.

The rotor core 3c has a cylindrical shape extending in the axial direction. The rotor core 3c is formed by laminating electromagnetic steel plates. The inner peripheral surface of the rotor core 3c is fixed to the outer peripheral surface of the shaft 3 a. The rotor core 3c is provided with a holding hole 3h into which the rotor magnet 3b is inserted and fixed.

The rotor magnet 3b is opposed to the stator 2 in the radial direction. The rotor magnet 3b is held in a state of being embedded in the rotor core 3c. The rotor magnet 3b of the present embodiment is an 8-pole (8-pole). The number of magnetic poles of the rotor 3 is not limited to the present embodiment. The rotor magnet 3b may be a magnet of another type such as an annular ring magnet.

< stator >

The stator 2 is radially opposed to the rotor 3 with a gap therebetween. In the present embodiment, the stator 2 is disposed radially outward of the rotor 3. The stator 2 includes a stator core 20, a winding portion 30, a first temperature sensor 41, and a second temperature sensor 42.

The stator core 20 is annular with the center axis J as the center. Stator core 20 is formed of a plurality of electromagnetic steel sheets stacked in the axial direction. The stator core 20 has a cylindrical core back portion 21 centered on the central axis J, and a plurality of pole tooth portions 22 extending radially inward from the core back portion 21.

The plurality of pole teeth 22 are arranged at equal intervals in the circumferential direction. The circumferentially adjacent tooth portions 22 are provided with a groove S therebetween. The conductor 50 of the winding portion 30 is accommodated in the slot S. In addition, the measurement portions 41a and 42a of the first temperature sensor 41 and the second temperature sensor 42 are housed in the tank S.

Fig. 2 is a schematic diagram showing an electric circuit constituted by the winding portion 30 of the present embodiment.

The winding portion 30 of the present embodiment includes a plurality of conductor connectors 60 to form a segment coil. The plurality of conductor connectors 60 form a 2Y connection. The winding section 30 of the present embodiment connects in parallel a Y connection composed of the first U-phase conductor connection 60U1, the first V-phase conductor connection 60V1, and the first W-phase conductor connection 60W1, and a Y connection composed of the second U-phase conductor connection 60U2, the second V-phase conductor connection 60V2, and the second W-phase conductor connection 60W 2.

One ends of the first U-phase conductor connection 60U1, the first V-phase conductor connection 60V1, and the first W-phase conductor connection 60W1 are connected to each other at the neutral point 10. Similarly, one ends of the second U-phase conductor coupling 60U2, the second V-phase conductor coupling 60V2, and the second W-phase conductor coupling 60W2 are connected to each other at the neutral point 10. Further, a U-phase bus bar 70 is connected to the other ends of the first U-phase conductor connection body 60U1 and the second U-phase conductor connection body 60U 2. A V-phase bus bar 80 is connected to the other ends of the first V-phase conductor connector 60V1 and the second V-phase conductor connector 60V 2. A W-phase bus bar 90 is connected to the other ends of the first W-phase conductor connector 60W1 and the second W-phase conductor connector 60W 2.

In the present embodiment, the winding portion 30 uses the 2Y wire in which two Y wires are connected in parallel, but may use the 1Y wire, or may connect three or more Y wires in parallel.

The motor 1 of the present embodiment has two modes, i.e., a rotation driving mode and a heat generation driving mode, as control modes. The rotational driving mode is a normal control mode in which ac currents shifted by 120 ° are caused to flow through the U-phase, V-phase, and W-phase conductor coupling bodies 60 of the stator 2 to rotate the rotor 3.

In the heat generation drive mode, a current is caused to flow through any one of the conductor coupling bodies 60 of the U-phase, V-phase, and W-phase, or the balance of the amounts of currents flowing through the respective phases is changed, so that the amount of current flowing through a specific phase is increased relative to the amount of current flowing through the other phases. The heat generated by the stator 2 in the heating drive mode is used for heating, for example. In the heat generation drive mode, heat generated by the stator 2 is transferred to the air conditioning equipment through, for example, a heat medium.

In the heat generation drive mode, when a current flows only in a specific phase or the amount of current flowing in the specific phase becomes large due to a protrusion, the temperature rises in the conductor connecting body 60 of the phase and its surroundings, and if the temperature becomes too high, the insulating layer may be broken.

Fig. 3 is a schematic diagram illustrating a part of the winding structure of the first U-phase conductor connector 60U 1. Fig. 4 is a schematic diagram showing a part of the winding structure of the second U-phase conductor connector 60U 2. Fig. 5 is a schematic cross-sectional view of a groove S of a part of the stator 2 of the present embodiment.

The stator core 20 of the present embodiment is provided with 72 slots S. In fig. 3 and 4, numerals arranged in one direction show slot numbers of the stator core 20. Fig. 3 shows the winding structure of the slots of slot numbers 59 to 72 and 01 to 13 among the total 72 slots, and fig. 4 shows the winding structure of the slots of slot numbers 65 to 72 and 01 to 19. Fig. 5 shows grooves S corresponding to groove numbers 71, 72, 01, 02, and 03.

Fig. 3 and 4 show only the winding structure of the U-phase conductor coupling body 60, but the V-phase and W-phase conductor coupling bodies 60 also have the same winding structure as the U-phase. The groove S through which the V-phase and W-phase conductor coupling 60 passes is circumferentially offset from the groove S through which the U-phase conductor coupling 60 passes.

As shown in fig. 5, 4 linear portions 50a are inserted through 1 groove S in the present embodiment in a radially aligned manner. Here, the 4-layer wire layer of 1 groove S is referred to as a first layer L1, a second layer L2, a third layer L3, and a fourth layer L4, respectively, from the radially inner side toward the radially outer side.

Fig. 3 and 4 show the conductor connection 60 of the first layer L1 and the second layer L2 through the slot S and the conductor connection 60 of the third layer L3 and the fourth layer L4, respectively. In fig. 3 and 4, the conductor connection 60 passing through the first layer L1 or the third layer L3 is shown by a solid line, and the conductor connection 60 passing through the second layer L2 or the fourth layer L4 is shown by a dashed-dotted line.

As shown in fig. 3 and 4, the conductor connector 60 is formed by connecting a plurality of conductors 50 in series. Each conductor 50 is formed by bending a flat wire. Therefore, the space factor of the conductor 50 in the slot S can be increased as compared with the case of using a round wire. In the present specification, the term "flat wire" refers to a wire rod having a cross-sectional shape of a quadrangle or substantially a quadrangle. In the present specification, "substantially quadrangular" includes a rounded quadrangle having corners of the quadrangle rounded. Although not shown, in the present embodiment, the conductor 50 has an enamel coating on the surface.

The conductor coupling body 60 includes linear portions 50a passing through the slots S, transition portions 50d connecting the linear portions 50a to each other on the upper side of the stator core 20, and a coupling portion 50j connecting the linear portions 50a to each other on the lower side of the stator core 20. The plurality of conductors 50 are connected to each other at the connection portion 50j. The transition portion 50d forms a coil end 30e on the upper side of the stator core 20. Similarly, the coupling portion 50j forms the coil end 30f on the lower side of the stator core 20.

The conductor connecting body 60 of the present embodiment is mounted on the stator core 20 by short pitch winding. The conductor connecting body 60 has a number of slots per pole s-1 (five slots in the present embodiment) in the transition portion 50d located at one coil end 30e. The conductor connecting body 60 has the connecting portion 50j located at the other coil end 30f straddling the same by the number s +1 of slots per pole (7 slots in the present embodiment).

The number of slots per pole S is the number of slots S of the stator 2 arranged between one magnetic pole of the rotor 3 in the combination of the rotor 3 and the stator 2. The number s of slots per pole is calculated from (the number of all slots of the stator 2)/(the number of magnetic poles of the rotor 3). In the present embodiment, the number s of slots per pole is 6.

As shown in fig. 5, since the winding portion 30 of the present embodiment adopts the short-pitch winding method, the conductor coupling body 60 of a plurality of phases passes through one slot S.

In the following description, the first U-phase conductor coupling body 60U1 and the second U-phase conductor coupling body 60U2 are simply referred to as a U-phase conductor coupling body (first-phase conductor coupling body) 60U without distinction from each other. The first V-phase conductor connection 60V1 and the second V-phase conductor connection 60V2 are simply referred to as V-phase conductor connection (second phase conductor connection) 60V without distinction. Further, the first W-phase conductor connection body 60W1 and the second W-phase conductor connection body 60W2 are simply referred to as a W-phase conductor connection body (third phase conductor connection body) 60W without distinguishing from each other. The U-phase conductor connection 60U, the V-phase conductor connection 60V, and the W-phase conductor connection 60W are conductor connections 60 that are out of phase with each other.

An insulating paper (insulating member) 6 is disposed in each groove S. The insulating paper 6 may be a sheet-like insulating member. The insulating paper 6 is disposed along the inner side surface of the slot S, and insulates the conductor connecting body 60 in the slot S from the inner side surface of the slot S. The insulating paper 6 is disposed between the conductor connectors 60 of different phases to insulate the conductor connectors 60 of different phases from each other. The insulating paper 6 of the present embodiment is disposed in an S shape in the groove S.

As described above, the surface of the conductor 50 is provided with a porcelain coat. Therefore, the insulation of the conductor 50 is ensured without the insulating paper 6. The insulating paper 6 is provided to further improve the insulation of the conductor 50.

The measurement unit 41a of the first temperature sensor 41 is disposed in one of the plurality of grooves S, and the measurement unit 42a of the second temperature sensor 42 is disposed in the other groove S. Here, the groove S in which the first temperature sensor 41 is disposed is referred to as a first groove S1, and the groove S in which the second temperature sensor 42 is disposed is referred to as a second groove S2.

In the first groove S1, the measurement portion 41a of the first temperature sensor 41, three U-phase conductor coupling bodies 60U, and one V-phase conductor coupling body 60V are arranged. The three U-phase conductor connectors 60U are disposed in the second layer L2, the third layer L3, and the fourth layer L4, respectively. One V-phase conductor connector 60V is disposed in the first layer L1. The measurement unit 41a of the first temperature sensor 41 is disposed between the first layer L1 and the second layer L2. That is, the measurement portion 41a of the first temperature sensor 41 is sandwiched between the U-phase conductor coupling 60U and the V-phase conductor coupling 60V.

According to the present embodiment, the measurement portion 41a of the first temperature sensor 41 is located between the U-phase conductor coupling 60U and the V-phase conductor coupling 60V. Therefore, the first temperature sensor 41 can measure the temperature of either the U-phase conductor coupling 60U or the V-phase conductor coupling 60V. According to the present embodiment, the number of temperature sensors can be reduced compared to the case where a temperature sensor for measuring the temperature of the U-phase conductor coupling 60U and a temperature sensor for measuring the temperature of the V-phase conductor coupling 60V are separately provided. This reduces the number of parts of the motor 1, and reduces the manufacturing cost of the motor 1.

Fig. 6 is a partially enlarged view of the area VI of fig. 5.

In the present embodiment, the insulating paper 6 of the first slot S1 is disposed between the U-phase conductor coupling 60U and the measurement portion 41a of the first temperature sensor 41, and between the V-phase conductor coupling 60V and the measurement portion 41a of the first temperature sensor 41, respectively. Therefore, the heat transfer efficiency between the first temperature sensor 41 and the U-phase conductor coupling 60U and the heat transfer efficiency between the first temperature sensor 41 and the V-phase conductor coupling 60V can be made close to each other. Thus, the first temperature sensor 41 can measure the temperature of the U-phase conductor coupling 60U and the V-phase conductor coupling 60V on the same basis, and the reliability of the temperature measurement by the first temperature sensor 41 can be improved.

Since the insulating paper 6 of the present embodiment is disposed between the U-phase conductor connection 60U and the V-phase conductor connection 60V, insulation between the U-phase conductor connection 60U and the V-phase conductor connection 60V can be ensured. This effect can be obtained by disposing the insulating paper 6 at least one of between the U-phase conductor coupling body 60U and the measurement portion 41a of the first temperature sensor 41 and between the V-phase conductor coupling body 60V and the measurement portion 41a of the first temperature sensor 41.

As shown in fig. 5, the measurement portion 42a of the second temperature sensor 42, three W-phase conductor coupling bodies 60W, and one U-phase conductor coupling body 60U are arranged in the second slot S2. The three W-phase conductor connectors 60W are disposed in the second layer L2, the third layer L3, and the fourth layer L4, respectively. One U-phase conductor connector 60U is disposed in the first layer L1. The measurement unit 42a of the second temperature sensor 42 is disposed between the first layer L1 and the second layer L2.

According to the present embodiment, the measurement portion 42a of the second temperature sensor 42 is sandwiched between the W-phase conductor coupling 60W and the U-phase conductor coupling 60U. According to the present embodiment, the second temperature sensor 42 can measure the temperature of either the W-phase conductor coupling 60W or the U-phase conductor coupling 60U.

According to the present embodiment, the conductor coupling 60 for three phases can be measured by two temperature sensors (the first temperature sensor 41 and the second temperature sensor 42). Thus, in the above-described heat generation drive mode, even when a current flows through any one of the U-phase conductor coupling 60U, the V-phase conductor coupling 60V, and the W-phase conductor coupling 60W, the temperature of the stator 2 can be measured more accurately.

According to the present embodiment, the measuring portions 41a and 42a of the first temperature sensor 41 and the second temperature sensor 42 are respectively sandwiched between the conductor coupling bodies 60 that are different in phase from each other in the different grooves S. More specifically, the measurement portion 41a of the first temperature sensor 41 is sandwiched between the U-phase conductor coupling 60U and the V-phase conductor coupling 60V in the first groove S1 of the plurality of grooves S. Further, the measurement portion 42a of the second temperature sensor 42 is sandwiched between the U-phase conductor coupling 60U and the W-phase conductor coupling 60W in the second slot S2 of the plurality of slots S. This allows the measuring sections 41a and 42a to be stably brought into contact with the conductor coupling body 60 in the groove S, thereby improving the reliability of temperature measurement.

However, the measurement portions 41a and 42a of the first temperature sensor 41 and the second temperature sensor 42 may be arranged outside the groove S as long as they are sandwiched between the conductor coupling bodies 60 that are out of phase with each other. Hereinafter, the above-described case will be described as a modified example.

Fig. 7 is a sectional view of the upper end portion of the stator 102 according to the present modification. Fig. 8 is a cross-sectional view of the lower end of the stator 102 according to the present modification. Further, although the 8-layer conductors 150 are inserted into the slots S of the stator core 120 of the present modification shown in fig. 7 and 8, the configuration of the present modification can also be adopted in a stator in which the 4-layer conductors 150 are inserted as in the above-described embodiment.

The winding portion 130 of the stator 102 of the present modification includes a first coil end portion 130e and a second coil end portion 130f on the upper side and the lower side of the stator core 120, respectively, as in the above-described embodiment.

As shown in fig. 7, the first coil end 130e is formed by the transition portions 150d of the plurality of conductor coupling bodies 160. The transition portion 150d connects the straight portions 150a to each other at an upper side of the stator core 120.

The measurement portion 141a of the first temperature sensor 141 of the present modification is attached to the first coil end portion 130e. The measurement portion 141a is disposed between the upper end portions of the two transition portions 150d arranged in a radial direction. The wiring portion 141b of the first temperature sensor 141 is drawn to the upper side of the first coil end portion 130e.

The transition portion 150d disposed radially inward of the measurement portion 141a is a transition portion 150d of a V-phase conductor connector (second phase conductor connector) 160V. On the other hand, the transition portion 150d disposed radially outward of the measurement portion 141a is the transition portion 150d of the U-phase conductor connector (first phase conductor connector) 160U. According to the present modification, the measurement portion 141a of the first temperature sensor 141 is sandwiched between the U-phase conductor coupling 160U and the V-phase conductor coupling 160V at the first coil end 130e.

As shown in fig. 8, the second coil end 130f is formed by the connection portions 150j of the plurality of conductor connection bodies 160. The coupling portion 150j extends from the lower end of the linear portion 150a below the stator core 120. The coupling portions 150j of the conductors 150 extending from the different slots S are connected to each other by welding or the like. Since the enamel skin is removed from the connection portion between the connection portions 150j, the connection portion is covered with the cover portion 107 to secure insulation. The covering portion 107 is formed by powder coating, for example.

The measurement unit 142a of the second temperature sensor 142 of the present modification is attached to the second coil end portion 130f. The measurement portion 142a is disposed between the upper end portions of the two coupling portions 150j arranged in a radial direction. The measurement portion 142a is disposed directly below the groove S. The measurement portion 142a of the second temperature sensor 142 is disposed between the connection portions 150j of the two conductor coupling bodies 160 extending from one groove S.

The coupling portion 150j disposed radially inward of the measurement portion 142a is a coupling portion 150j of the V-phase conductor coupling body 160V. On the other hand, the connection portion 150j disposed radially outward of the measurement portion 142a is the connection portion 150j of the W-phase conductor connection body (third-phase conductor connection body) 160W. According to the present modification, the measurement portion 142a of the second temperature sensor 142 is sandwiched between the V-phase conductor coupling 160V and the W-phase conductor coupling 160W at the second coil end portion 130f.

In the present modification, the case where the measurement unit 141a of the first temperature sensor 141 is attached to the first coil end 130e and the measurement unit 142a of the second temperature sensor 142 is attached to the second coil end 130f is described. According to the present modification, it is possible to check the temperature difference between the coil ends 130e and 130f due to the supply state of the cooling oil to the coil ends 130e and 130f. However, the measurement portions 141a and 142a of the first and second temperature sensors 141 and 142 may be attached to either one of the first and second coil ends 130e and 130f.

While various embodiments of the present invention have been described above, the configurations and combinations thereof in the embodiments are merely examples, and additions, omissions, substitutions, and other modifications of the configurations can be made without departing from the spirit of the present invention. The present invention is not limited to the embodiments.

For example, although the motor 1 is a three-phase motor in the above embodiment, it may be another motor such as a five-phase motor. That is, the plurality of conductor coupling bodies may include a multi-phase conductor coupling body that mutually constitutes a multi-phase circuit.

In the above-described embodiment, a combination of phases measured by the first temperature sensor and the second temperature sensor is an example. That is, when the stator constitutes a three-phase circuit, the same effects can be obtained regardless of which of the U-phase, the V-phase, and the W-phase is used as the first phase, the second phase, and the third phase.

In addition, the configuration of the above embodiment and the configuration of the modification may be combined with each other with respect to the position where the measurement units of the first temperature sensor and the second temperature sensor are attached. The measuring unit of one of the first temperature sensor and the second temperature sensor may be disposed in the slot, and the other may be disposed at the coil end. Hereinafter, the positions where the measurement units of the first temperature sensor and the second temperature sensor are attached are summarized. That is, the first temperature sensor and the second temperature sensor may be both attached to the coil end portion on one side in the axial direction, may be both attached to the coil end portion on the other side in the axial direction, or may be attached to the coil end portions on one side and the other side in the axial direction, respectively. Further, as in the above-described embodiment, the first temperature sensor and the second temperature sensor may be disposed in different tanks. Alternatively, one of the first temperature sensor and the second temperature sensor may be disposed in the slot, and the other may be attached to one or the other of the coil ends in the axial direction.

Claims (12)

1. A stator, which is disposed radially outside a rotor rotatable about a central axis, includes:

a winding portion having a plurality of conductor connectors formed by connecting a plurality of conductors in series;

a stator core provided with a plurality of slots through which the conductor connections pass; and

a first temperature sensor for measuring a temperature of the fluid,

the measurement portion of the first temperature sensor is sandwiched between a first phase conductor coupling and a second phase conductor coupling, which are the conductor couplings that are different in phase from each other.

2. The stator of claim 1,

the measurement portion of the first temperature sensor is sandwiched between the first phase conductor connector and the second phase conductor connector in a first slot of the plurality of slots.

3. The stator according to claim 2, wherein,

in the first groove, an insulating member is disposed at least one of between the first phase conductor connector and the measurement portion of the first temperature sensor and between the second phase conductor connector and the measurement portion of the first temperature sensor.

4. The stator of claim 2,

in the first groove, insulating members are disposed between the first phase conductor connector and the measurement portion of the first temperature sensor, and between the second phase conductor connector and the measurement portion of the first temperature sensor, respectively.

5. The stator of claim 1,

the measurement portion of the first temperature sensor is sandwiched between the first phase conductor coupling and the second phase conductor coupling at a coil end.

6. The stator according to any one of claims 1 to 5,

and a second temperature sensor is also included, wherein,

the measuring section of the second temperature sensor is sandwiched between the conductor coupling bodies that are out of phase with each other.

7. The stator of claim 5,

a second temperature sensor is also included and,

the measuring section of the second temperature sensor is sandwiched between the second phase conductor coupling body and a third phase conductor coupling body which are the conductor coupling bodies that are out of phase with each other.

8. The stator of claim 7,

the measuring section of the second temperature sensor is sandwiched between the second phase conductor connector and the third phase conductor connector in a second slot of the plurality of slots.

9. The stator of claim 7,

the measuring portion of the second temperature sensor is sandwiched between the second phase conductor coupling and the third phase conductor coupling, which are the conductor couplings that are different in phase from each other, at a coil end.

10. The stator according to claim 9, wherein,

a measuring portion of the first temperature sensor is sandwiched between the first phase conductor coupling body and the second phase conductor coupling body at a coil end portion on one side of the stator core in an axial direction,

the measurement portion of the second temperature sensor is sandwiched between the second phase conductor coupling body and the third phase conductor coupling body at a coil end portion on the other side in the axial direction of the stator core.

11. The stator according to any one of claims 1 to 10,

the conductor connecting body is mounted on the stator core in a short pitch winding manner.

12. A motor, comprising:

a stator according to any one of claims 1 to 11; and

the rotor.

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