Stator unit

Abstract

To provide a stator unit having a thermistor that obviates the need of a separate component when fixing the thermistor to a neutral line, and can be fixed to the neutral line in a stable state.SOLUTION: A stator unit 1 according to the present invention comprises a neutral line 3 and a thermistor 4 fixed to the neutral line 3. The thermistor 4 comprises a thermistor body 41, a temperature measuring part 42, and a locking piece 43 with one end connected to the thermistor body 41. The neutral line 3 has a neutral line body 31 having a folding back part 31a that accommodates the temperature measuring part 42. The thermistor body 41 or the temperature measuring part 42 and the locking piece 43 form a locking part SC for locking the folding back part 31a. When the locking part SC locks the folding back part 31a in a state in which it has accommodated the temperature measuring part 42 in the folding back part 31a, a part of the thermistor body 41 restricts a movement in a direction perpendicular to a direction in which the movement is restricted by the locking part SC, owing to the part of the thermistor body coming into contact with the neutral line body 31.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present disclosure relates to a stator unit. [Background technology]

[0002] When the wiring of the thermistor has an exposed portion that is exposed to the outside, it is necessary to prevent the exposed portion from coming into contact with the stator core. However, in the conventional configuration, it is difficult to position the wiring leading to the detection unit on the end face of the stator core, and there is a risk that the exposed portion may come into contact with the stator core (see Patent Document 1).

[0003] To solve this problem, Patent Document 1 discloses a stator unit comprising a stator, a thermistor having a fixing part fixed to the stator and detecting the temperature of the stator, and a holder attached to the fixing part, wherein the thermistor wiring has a first part exposed to the outside and a second part covered with a tube, and the holder has a hook part for hooking the first part and a holding part for holding the tube in a state where it is bent multiple times. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2022-142097 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in the stator unit disclosed in Patent Document 1, the thermistor and neutral conductor are fixed using a retainer that is a separate part from the thermistor, which means that the thermistor must be positioned on the neutral conductor and then, while maintaining that position, fixed to the neutral conductor using the retainer, which is a time-consuming process.

[0006] The present invention has been made in consideration of the above circumstances, and aims to provide a stator unit having a thermistor that does not require any additional parts to fix the thermistor to the neutral wire and that can be fixed in a stable state to the neutral wire. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention is realized by the following configuration. The stator unit of the present invention comprises: a neutral wire electrically connected to the U-phase, V-phase, and W-phase of the stator; a thermistor fixed to the neutral conductor; The thermistor is a thermistor body; A temperature measuring unit; a locking piece connected to the thermistor body at one end, The neutral conductor has a folded portion that houses the temperature measuring unit and includes a neutral conductor main body that extends along the stator, a locking portion that locks the folded portion is formed by the thermistor main body or the temperature measuring portion and the locking piece, the locking portion locks the folded portion when the temperature measuring portion is housed in the folded portion, When the locking portion is locked to the folded portion, movement in a direction perpendicular to the direction in which movement is restricted by the locking portion is restricted by a portion of the thermistor main body abutting against the neutral conductor main body. [Effects of the Invention]

[0008] According to the present invention, a stator unit can be provided that does not require any additional parts when fixing the thermistor to the neutral conductor, and that has a thermistor that can be fixed stably to the neutral conductor. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 1 is a plan view of a stator unit according to a first embodiment of the present invention. [Figure 2] 1 is a perspective view of a neutral conductor and a thermistor according to a first embodiment of the present invention before the thermistor is fixed to the neutral conductor. FIG. [Figure 3] 1 is a perspective view showing a state in which a thermistor according to a first embodiment of the present invention is fixed to a neutral conductor. [Figure 4] FIG. 10 is a perspective view of a neutral conductor and a thermistor according to a second embodiment of the present invention before the thermistor is fixed to the neutral conductor. [Figure 5] FIG. 10 is a perspective view showing a state in which a thermistor according to a second embodiment of the present invention is fixed to a neutral conductor. DETAILED DESCRIPTION OF THE INVENTION

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as an "embodiment") will be described in detail with reference to the accompanying drawings. It should be noted that the same elements are denoted by the same numbers or symbols throughout the description of the embodiments. Furthermore, the dimensional ratios in the drawings differ from the actual dimensional ratios and are merely drawn to make the explanation easier to understand, and do not guarantee that the same parts are drawn to the same dimensions between drawings. Furthermore, in the drawings, for ease of viewing, there are cases where only some of the parts having the same attribute are given reference symbols.

[0011] [First embodiment] A stator unit 1 according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a plan view of a stator unit 1 according to a first embodiment of the present invention. The stator unit 1 comprises a stator 2, a neutral wire 3, and a thermistor 4, and is used in an inner rotor type motor in which a rotor (not shown) is rotatably arranged in a space SP radially inside the stator 2.

[0012] (Stator 2) The stator 2 includes a stator core 21 having a plurality of teeth 21a protruding inward from the inner peripheral surface and spaced at approximately equal intervals in the circumferential direction, and a coil portion 22 in which a coil wire is wound around the teeth 21a.

[0013] The coil portion 22 includes a U-phase coil 22b, a V-phase coil 22c, and a W-phase coil 22a corresponding to the three phases of U, V, and W.

[0014] In this embodiment, the three-phase coils are electrically connected in a Y-connection using the neutral wire 3, but this is a double Y-connection with two coil lines for each phase, and each phase is electrically connected to the neutral wire 3 at two points.

[0015] However, this is not necessarily limited to this, and a single Y connection may be used in which one coil line is provided for each phase, and electrical connection to the neutral wire 3 is made at one point for each phase.

[0016] (Neutral conductor 3) FIG. 2 is a perspective view of the neutral conductor 3 and thermistor 4 before the thermistor 4 of the first embodiment according to the present invention is fixed to the neutral conductor 3. FIG. As mentioned above, the neutral wire 3 is electrically connected to the U phase (U phase coil 22b), V phase (V phase coil 22c), and W phase (W phase coil 22a) of the stator.

[0017] As shown in Figure 2, the neutral conductor 3 has a folded portion 31a and comprises a neutral conductor main body 31 extending along the stator 2, and electrical connection portions 32 extending from the neutral conductor main body 31 and provided corresponding to each of the U phase, V phase, and W phase. The direction extending along the stator 2 may be referred to as the extension direction.

[0018] The neutral wire main body 31 has a first surface A which is one wide surface, a second surface B which is the other wide surface located opposite the first surface A, and a narrow side surface C (also called a peripheral surface) which connects the first surface A and the second surface B.

[0019] In addition, the neutral wire main body portion 31 is connected to one side (the left side as viewed in the figure) of the folded portion 31a and has an inclined portion 31b having an inclination that displaces in a direction from the second surface B toward the first surface A as it approaches the folded portion 31a.

[0020] The folded portion 31a is folded in a detour toward the outside, intersecting the extension direction of the neutral wire main body portion 31, more than the side C of the inclined portion 31b, and when viewed in a plan view from a side perpendicular to the side C (a plan view of the first surface A or the second surface B viewed from the front), the first surface A and the second surface B are switched on either side of the folded portion 31a. The outward direction that intersects with the extending direction of the neutral conductor main body 31 is the direction that is radially outward of the stator 2 when the neutral conductor 3 is provided on the stator 2 (see Figure 1), and the same applies hereinafter.

[0021] Specifically, in FIG. 2, the first surface A can be seen at the inclined portion 31b, but the second surface B located on the opposite side of the first surface A cannot be seen.

[0022] However, at the neutral conductor main body 31 located on the opposite side of the inclined portion 31b across the folded portion 31a, the second surface B is visible, and conversely, the first surface A is not visible.

[0023] In this manner, the folded portion 31a of this embodiment is folded such that the orientations of the first surface A and the second surface B are reversed before and after the folded portion 31a.

[0024] As described above, the folded portion 31a is folded back so as to make a detour in the outward direction intersecting the extending direction of the neutral conductor main body portion 31 beyond the side surface C of the inclined portion 31b. Therefore, the U-shaped bottom 31aa of the folded portion 31a of the neutral conductor main body 31 is located further outward than the side C located outward from the inclined portion 31b and the side C located outward on the opposite side of the inclined portion 31b relative to the folded portion 31a when viewed in the extension direction of the neutral conductor main body 31.

[0025] This folded portion 31a serves as a folded portion 31a that accommodates a temperature measuring portion 42 of the thermistor 4, which will be described later.

[0026] On the other hand, the electrical connection portion 32 of this embodiment includes two U-phase electrical connection portions 32b, two V-phase electrical connection portions 32c, and two W-phase electrical connection portions 32a to accommodate two lines of coil wire for each of the U-phase, V-phase, and W-phase.

[0027] Specifically, when the neutral conductor 3 is provided in the stator 2 (see Figure 1), the U-phase electrical connection portion 32b, the V-phase electrical connection portion 32c, and the W-phase electrical connection portion 32a all extend so as to bend at approximately 90 degrees from the side C of the neutral conductor main body portion 31 facing radially inward of the stator 2.

[0028] In the case of a single Y-connection in which one coil line is provided for each phase, there may be one each of the U-phase electrical connection portion 32b, the V-phase electrical connection portion 32c, and the W-phase electrical connection portion 32a.

[0029] (Thermistor 4) The thermistor 4 integrally comprises a thermistor main body 41, a temperature measuring part 42 extending laterally from the thermistor main body 41, and a locking piece 43 connected at one end to the thermistor main body 41, which forms a locking part SC that is locked while being sandwiched between the thermistor main body 41 and the temperature measuring part 42.

[0030] The temperature measuring section 42 is adapted to the shape of at least the portion corresponding to the bottom 31aa so that when the thermistor 4 is fixed to the neutral conductor 3, it makes good contact with the U-shaped bottom 31aa of the folded portion 31a of the neutral conductor main body 31. In this embodiment, the shape is made to match the curved surface of the U-shape so as to make good contact with the bottom 31aa of the U-shape.

[0031] In addition, in order to improve the accuracy of temperature measurement, the temperature measuring unit 42 is designed to incorporate a temperature measuring element at a position corresponding to the U-shaped bottom 31aa of the folded portion 31a of the neutral conductor main body 31 when the thermistor 4 is fixed to the neutral conductor 3.

[0032] On the other hand, the locking piece 43 extends almost parallel to the temperature measuring part 42 from a position closer to the end E1 of the thermistor main body 41 on the temperature measuring part 42 side than the temperature measuring part 42, on the end E1 side of the thermistor main body 41, so as to form a locking part SC that locks in place while being sandwiched between the temperature measuring part 42.

[0033] More specifically, the locking piece 43 extends from the side of the thermistor main body 41 approximately parallel to the temperature measuring portion 42 so as to form a locking portion SC that locks in place while being sandwiched between the temperature measuring portion 42 and the neutral conductor main body 31 (the width of the side surface C).

[0034] The locking piece 43 has a locking claw 43a formed at the tip and protruding toward the temperature measuring portion 42, and a convex portion 43b provided on the thermistor main body 41 side, spaced a distance equivalent to the width of the neutral conductor main body 31 (the width of the first surface A and the second surface B), and protruding toward the temperature measuring portion 42.

[0035] Furthermore, to facilitate assembly, the thermistor 4 is provided with a holding portion 45 for holding the harness 44 of the thermistor 4, which is integrally formed on the end E2 side of the thermistor main body 41, which is located opposite the end E1 of the thermistor main body 41 where the locking piece 43 is provided.

[0036] Then, the temperature measuring part 42 is inserted into the folded part 31a of the neutral conductor main body 31, and a part of the folded part 31a is engaged with the engaging part SC formed by the engaging piece 43 and the temperature measuring part 42, thereby fixing the thermistor 4 to the neutral conductor 3.

[0037] FIG. 3 is a perspective view showing a state in which the thermistor 4 of the first embodiment according to the present invention is fixed to the neutral conductor 3. As shown in FIG.

[0038] As shown in FIG. 3, when the temperature measuring unit 42 is housed in the folded portion 31a, the locking portion SC (see FIG. 2) locks the side surface C of the folded portion 31a with the locking claw 43a of the locking piece 43, preventing it from coming off.

[0039] At this time, the part of the neutral conductor main body 31 forming the folded portion 31a fits between the locking claw 43a and the protrusion 43b formed on the locking piece 43 of the locking portion SC, restricting the movement of the thermistor 4 relative to the neutral conductor main body 31 in the insertion / removal direction of the locking portion SC (also called the first direction X).

[0040] In addition, the locking portion SC locks the portion of the neutral conductor main body 31 that forms the folded portion 31a by clamping it between the temperature measuring portion 42 and the locking piece 43, thereby restricting the movement of the thermistor 4 relative to the neutral conductor main body 31 in the clamping direction (also called the second direction Y) perpendicular to the insertion / removal direction of the locking portion SC.

[0041] In this way, when the locking portion SC is locked to the folded portion 31a, the locking portion SC restricts the movement of the thermistor 4 relative to the neutral wire main body portion 31 in the first direction X and the second direction Y, as shown in Figure 3.

[0042] Furthermore, when the locking portion SC is in the locked state with the folded portion 31a, movement in a direction (also called the third direction Z) perpendicular to the directions (first direction X and second direction Y) in which movement is restricted by the locking portion SC, more specifically, movement toward the opening located opposite the U-shaped bottom 31aa (see Figure 2) of the folded portion 31a, is restricted by a portion P1 of the thermistor main body 41 abutting against the side C of the neutral conductor main body 31.

[0043] Specifically, when the locking portion SC is locking the folded portion 31a, the side C of the neutral conductor main body 31 against which the part P1 of the thermistor main body 41 abuts is the side C located on the opposite side of the inclined portion 31b from the folded portion 31a when viewed in the extension direction of the neutral conductor main body 31.

[0044] In other words, when the locking portion SC is in the locked state with the folded portion 31a, the side C of the neutral conductor main body 31 against which the part P1 of the thermistor main body 41 abuts is the side C located on the side of the U-shaped bottom 31aa of the folded portion 31a of the neutral conductor main body 31, which is located on the opposite side of the inclined portion 31b relative to the folded portion 31a, when viewed in the extension direction of the neutral conductor main body 31.

[0045] In this way, when the thermistor 4 of this embodiment is fixed to the neutral conductor 3 by the locking portion SC, movement in three dimensional directions (first direction X, second direction Y, and third direction Z) is restricted, and a stable fixation to the neutral conductor 3 is achieved.

[0046] Furthermore, in this embodiment, when the locking portion SC is locking the folded portion 31a, movement in the direction (third direction Z) perpendicular to the directions (first direction X and second direction Y) in which movement is restricted by the locking portion SC is also restricted by the temperature measuring portion 42 abutting against the side C of the neutral conductor main body portion 31 at position P2 of the inclined portion 31b, thereby further fixing the thermistor 4 in a stable state relative to the neutral conductor 3.

[0047] In addition, the side surface C of the neutral conductor main body 31 at the position P2 of the inclined portion 31b where the temperature measuring portion 42 abuts is also the side surface C located on the bottom 31aa side of the U-shape of the folded portion 31a of the neutral conductor main body 31.

[0048] As described above, in the first embodiment, fixing can be achieved by the simple process of clamping the folded portion 31a of the neutral wire main body portion 31 with the locking portion SC, and the movement of the fixed thermistor 4 in the first direction X, the second direction Y, and the third direction Z is restricted, thereby realizing a stable fixed state.

[0049] [Second embodiment] Next, a stator unit 1 according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a perspective view of the neutral conductor 3 and thermistor 4 before the thermistor 4 of the second embodiment according to the present invention is fixed to the neutral conductor 3. As shown in FIG.

[0050] Below, we will specifically explain the stator unit 1 of the second embodiment, but the stator 2 (not shown) is the same as in the first embodiment, and explanations of the neutral wire 3 and thermistor 4 that are similar to those in the first embodiment may be omitted.

[0051] (Neutral conductor 3) The neutral conductor 3 of the second embodiment is different in the neutral conductor main body 31, and the neutral conductor main body 31 will be described below. As shown in Figure 4, the neutral wire main body 31 of the second embodiment comprises a first main body 3A and a second main body 3B connected to the first main body 3A via a portion of the folded portion 31a and spaced apart from the first main body 3A.

[0052] The folded portion 31a includes a first bent portion 3A1 that extends outward from the side C of the first main body portion 3A that is closer to the second main body portion 3B and then folded back, a second bent portion 3B1 that extends outward from the side C of the second main body portion 3B that is closer to the first main body portion 3A and then folded back, and a bridge portion 3C that connects the tip side of the first bent portion 3A1 to the tip side of the second bent portion 3B1 so as to connect the first main body portion 3A and the second main body portion 3B.

[0053] The outward direction in this embodiment is the same as the outward direction in the first embodiment (the outward direction that intersects with the extension direction of the neutral wire main body 31), and is the direction that is radially outward of the stator 2 when the neutral wire 3 is provided in the stator 2 (see Figure 1).

[0054] Because of this configuration of the folded portion 31a, when viewed in the extension direction of the neutral wire main body portion 31, the folded portion 31a is not folded in such a way that the directions of the first surface A and the second surface B are reversed before and after the folded portion 31a, as in the first embodiment, making it easier to process.

[0055] (Thermistor 4) As in the first embodiment, the thermistor 4 has a temperature measuring portion 42 extending laterally from the thermistor main body 41, and the temperature measuring portion 42 is formed in a shape that matches the U-shape of the folded portion 31a of the neutral conductor main body 31. More precisely, the temperature measuring section 42 is formed in a shape that matches the U-shape inside the first bent portion 3A1.

[0056] Another difference is that the locking piece 43 extends from the end E1 of the thermistor main body 41 so as to cover the end face 41a of the thermistor main body 41 at a distance from the end face 41a of the thermistor main body 41 on the temperature measuring section 42 side, thereby forming a locking section SC that locks the thermistor main body 41 while sandwiching it between the thermistor main body 41.

[0057] More specifically, the locking piece 43 extends from the end E1 of the thermistor main body 41 approximately parallel to the end face 41a of the thermistor main body 41 so as to form a gap equivalent to the thickness of the neutral conductor main body 31 (the width of the side C) from the end face 41a of the thermistor main body 41 to form a locking portion SC that is locked by being sandwiched between the end face 41a of the thermistor main body 41.

[0058] In addition, in the first embodiment, a protrusion 43b was formed on the locking piece 43, but in the second embodiment, a protrusion 43b' protruding toward the locking piece 43 is provided on the end face 41a of the thermistor main body 41, which is spaced a distance equivalent to the locking claw 43a of the locking piece 43 and the width of the neutral wire main body 31 (the width of the first surface A and the second surface B).

[0059] Furthermore, the width of the thermistor body 41 is designed to be approximately equal to the distance between the first body 3A and the second body 3B.

[0060] Then, the temperature measuring portion 42 is inserted into the folded portion 31a (more precisely, the first bent portion 3A1) from the U-shaped opening side of the folded portion 31a, and a part of the folded portion 31a (more precisely, the crossover portion 3C)) is engaged with the engaging portion SC formed by the engaging piece 43 and the end face 41a of the thermistor main body portion 41, thereby fixing the thermistor 4 to the neutral conductor 3.

[0061] FIG. 5 is a perspective view showing a state in which a thermistor 4 according to a second embodiment of the present invention is fixed to a neutral conductor 3. As shown in FIG. In Figure 5, many parts are obscured by locking, and many parts have not been assigned symbols or numbers, so please refer to Figure 4 for symbols and numbers.

[0062] As shown in Figure 5, when the temperature measuring unit 42 is housed in the folded portion 31a, the locking portion SC is engaged with the side C of the folded portion 31a (the side C located on the outer side of the transition portion 3C) by the locking claw 43a of the locking piece 43, preventing it from coming loose.

[0063] At this time, the part of the neutral conductor main body 31 forming the folded portion 31a (more specifically, the transition portion 3C) fits between the locking claw 43a formed on the locking piece 43 of the locking portion SC and the protrusion 43b' formed on the end face 41a of the thermistor main body 41, and as in the first embodiment, the movement of the thermistor 4 relative to the neutral conductor main body 31 in the insertion / removal direction of the locking portion SC (also called the first direction X) is restricted.

[0064] Furthermore, the locking portion SC locks the portion of the neutral conductor main body 31 (more specifically, the transition portion 3C) that forms the folded portion 31a between the end face 41a of the thermistor main body 41 and the locking piece 43, thereby restricting movement of the thermistor 4 relative to the neutral conductor main body 31 in the clamping direction (also called the second direction Y) perpendicular to the insertion / removal direction of the locking portion SC, as in the first embodiment.

[0065] Therefore, in the second embodiment, as in the first embodiment, when the locking portion SC locks the folded portion 31a, the locking portion SC restricts the movement of the thermistor 4 relative to the neutral wire main body 31 in the first direction X and the second direction Y, as shown in Figure 5.

[0066] Furthermore, when the locking portion SC locks the folded portion 31a (more specifically, the transition portion 3C), movement in a direction (also called the third direction Z) perpendicular to the directions (the first direction X and the second direction Y) in which movement is restricted by the locking portion SC is restricted by a portion P1' of the thermistor main body 41 abutting against the side C of the neutral conductor main body 31.

[0067] More specifically, when the locking portion SC locks the folded portion 31a (more specifically, the transition portion 3C), a portion P1' near the temperature measuring portion 42 of the thermistor main body portion 41 fits into the gap between the first main body portion 3A and the second main body portion 3B, and as mentioned above, the width of the thermistor main body portion 41 is designed to be approximately equal to the distance between the first main body portion 3A and the second main body portion 3B.

[0068] Therefore, a portion P1' near the temperature measuring portion 42 of the thermistor main body 41 abuts against the opposing side surfaces C of the first main body 3A and the second main body 3B, thereby restricting movement in a direction (also called the third direction Z) perpendicular to the directions (the first direction X and the second direction Y) in which movement is restricted by the locking portion SC, as in the first embodiment.

[0069] In this embodiment, when the thermistor 4 is fixed to the neutral conductor 3 by the locking portion SC, its movement in three dimensions (first direction X, second direction Y, and third direction Z) is restricted, and the thermistor 4 is fixed stably to the neutral conductor 3.

[0070] As described above, according to the first and second embodiments, no additional parts are required to fix the thermistor 4 to the neutral conductor 3, and the thermistor 4 can be stably fixed to the neutral conductor 3 by a simple and effortless operation of locking the locking portion SC of the thermistor 4 to the neutral conductor 3. Furthermore, since the holding portion 45 for holding the harness 44 of the thermistor 4 is also formed integrally, the number of parts is reduced, and costs can be reduced.

[0071] The present invention has been described above based on specific embodiments, but the present invention is not limited to the above embodiments, and modifications and improvements to the embodiments are also included within the technical scope of the invention, which will be clear to those skilled in the art from the description of the claims. [Explanation of symbols]

[0072] 1... stator unit, 2... stator, 21... stator core, 21a... teeth, 22... coil portion, 22a... W-phase coil, 22b... U-phase coil, 22c... V-phase coil, 3... neutral conductor, 3A... first main body portion, 3B... second main body portion, 3A1... first bent portion, 3B1... second bent portion, 3C... crossover portion, 31... neutral conductor main body portion, 31a... folded portion, 31aa... bottom portion, 31b... inclined portion, 32... electrical connection portion, 32a... for W-phase Electrical connection portion, 32b...U-phase electrical connection portion, 32c...V-phase electrical connection portion, 4...thermistor, 41...thermistor main body portion, 41a...end face, 42...temperature measuring portion, 43...locking piece, 43a...locking claw, 43b, 43b'...protrusion, 44...harness, 45...holding portion, A...first surface, B...second surface, C...side surface, E1, E2...end portion, P1, P1'...part, P2...position, SC...locking portion, X...first direction, Y...second direction, Z...third direction

Claims

1. A stator unit, The stator unit includes: a neutral wire electrically connected to the U-phase, V-phase, and W-phase of the stator; a thermistor fixed to the neutral conductor; The thermistor is a thermistor body; A temperature measuring unit; a locking piece connected to the thermistor body at one end, The neutral conductor has a folded portion that houses the temperature measuring unit and includes a neutral conductor main body that extends along the stator, a locking portion that locks the folded portion is formed by the thermistor main body or the temperature measuring portion and the locking piece, the locking portion locks the folded portion when the temperature measuring portion is housed in the folded portion, A stator unit in which, when the locking portion is in a state where it locks the folded portion, movement in a direction perpendicular to the direction in which movement is restricted by the locking portion is restricted by a portion of the thermistor main body abutting the neutral conductor main body.

2. The locking piece extends from the thermistor body on the temperature measuring portion side to form a locking portion that is sandwiched and locked by the temperature measuring portion, The neutral conductor main body is connected to one side of the folded portion and includes an inclined portion that is inclined toward the folded portion, A stator unit as described in claim 1, wherein when the locking portion is locked to the folded portion, movement in a direction perpendicular to the direction in which movement is restricted by the locking portion is restricted by the temperature measuring portion abutting against the neutral conductor main body portion at the position of the inclined portion.

3. The neutral conductor main body is a first main body portion; a second body portion connected to the first body portion via a part of the folded portion and spaced apart from the first body portion, The folded portion is a first bent portion extending outward from a side surface of the first main body portion closer to the second main body portion and then folded back; a second bent portion extending outward from a side surface of the second main body portion closer to the first main body portion and then folded back; a bridge portion connecting a tip end side of the first bent portion and a tip end side of the second bent portion so as to connect the first main body portion and the second main body portion, The stator unit according to claim 1 , wherein the locking portion locks the bridge portion of the folded portion.

4. 4. A stator unit according to claim 1, wherein the thermistor comprises a holding portion for holding the thermistor harness, the holding portion being integrally formed on an end side of the thermistor body portion opposite the end on which the locking piece is provided.

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