Electrical energy to mechanical energy converter

Abstract

The present invention comprises: a stator core 20 in which a plurality of teeth are projected from a base; U-phase conductors 111, 112, ..., V-phase conductors 121, 122, ..., and W-phase conductors 131, 132, ... disposed in spaces between the teeth; one heat-medium-flow member 310 that is disposed on one side of the stator core 20 and that prevents a heat medium flowing through the U-phase conductors 111, 112, ..., the V-phase conductors 121, 122, ..., and the W-phase conductors 131, 132, ... from leaking to the outside; and another heat-medium-flow member 320 that is disposed on the other side of the stator core 20 and prevents the heat medium flowing through the U-phase conductors 111, 112, ..., the V-phase conductors 121, 122, ..., and the W-phase conductors 131, 132, ... from leaking to the outside.

Description

[[Technical Field]]

[0001] The present invention relates to a converter that converts electrical energy into mechanical energy or mechanical energy into electrical energy. [[Background Art]]

[0002] Examples of converters that convert electrical energy into mechanical energy or mechanical energy into electrical energy include rotating electrical machines that function as electric motors or generators, linear motors, and the like. In these converters, suppressing temperature rise is important.

[0003] Japanese Unexamined Patent Publication No. 2004-135386 discloses an electric machine in which a single hollow conducting wire is folded back in the middle to form a double layer, wound around a stator core to constitute a stator coil, and a heat medium is passed through the hollow conducting wire to suppress temperature rise. [[Summary of the Invention]]

[0004] However, in the above-described conventional electric machine, it is necessary to wind a hollow conducting wire into a coil shape, resulting in poor productivity.

[0005] The present invention has been made focusing on such conventional problems. An object of the present invention is to provide an electrical-mechanical energy converter that has high cooling performance, high output, small size and light weight, and is also excellent in productivity.

[0006] The present invention solves the above problems by the following solving means. For ease of understanding, reference numerals corresponding to the embodiments of the present invention are given in parentheses, but the present invention is not limited thereto. In addition, the configurations described with reference numerals may be appropriately substituted or improved.

[0007] One aspect is: a stator core (20) having a plurality of teeth protruding from a base portion; A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, the first U-phase conductor (111) is placed in the space between the teeth and is longer than the thickness of the stator core (20) and protrudes from both sides of the stator core (20), A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and a second U-phase conductor (112) that is longer than the thickness of the stator core (20) and protrudes from both sides of the stator core (20), A conductive U-phase wire (11) is connected to one end of the first U-phase conductor (111) protruding from the stator core (20), A conductive U-phase connector (210) is connected to the other end of the first U-phase conductor (111) protruding from the stator core (20) and to the other end of the second U-phase conductor (112) protruding from the stator core (20), A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, the first V-phase conductor (121) is placed in the space between the teeth and is longer than the thickness of the stator core (20) and protrudes from both sides of the stator core (20), A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and a second V-phase conductor (122) that is longer than the thickness of the stator core (20) and protrudes from both sides of the stator core (20), A conductive V-phase wire (12) connected to one end of the first V-phase conductor (121) protruding from the stator core (20), A conductive V-phase connector (220) is connected to the other end of the first V-phase conductor (121) protruding from the stator core (20) and to the other end of the second V-phase conductor (122) protruding from the stator core (20), A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, the first W-phase conductor (131) is placed in the space between the teeth and is longer than the thickness of the stator core (20) and protrudes from both sides of the stator core (20), A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and a second W-phase conductor (132) that is longer than the thickness of the stator core (20) and protrudes from both sides of the stator core (20), A conductive W-phase wire (13) is connected to one end of the first W-phase conductor (131) protruding from the stator core (20), A conductive W-phase connector (230) is connected to the other end of the first W-phase conductor (131) protruding from the stator core (20) and to the other end of the second W-phase conductor (132) protruding from the stator core (20), A conductive neutral wire (240) is connected to one end of the second U-phase conductor (112) protruding from the stator core (20), one end of the second V-phase conductor (122), and one end of the second W-phase conductor (132), A heat transfer medium passage member (310) is provided, which is capable of allowing a heat transfer medium to flow through its interior, and is positioned on one side of the stator core (20). This passage member prevents the heat transfer medium flowing through the first U-phase conductor (111), the second U-phase conductor (112), the first V-phase conductor (121), the second V-phase conductor (122), the first W-phase conductor (131), and the second W-phase conductor (132) from leaking to the outside from the point of contact with the stator core (20). A heat transfer medium passage member (320) is provided, which is located on the other side of the stator core (20) and through which a heat transfer medium can flow, preventing the heat transfer medium flowing through the first U-phase conductor (111), the second U-phase conductor (112), the first V-phase conductor (121), the second V-phase conductor (122), the first W-phase conductor (131), and the second W-phase conductor (132) from leaking to the outside from the point of contact with the stator core (20), It is an electrical energy to mechanical energy converter.

[0008] Another aspect is, A stator core (20) with multiple teeth protruding from the base, A plate-like body that is conductive and has a flow channel through which a heat transfer medium can pass, wherein a plurality of U-phase conductors (111, 112, ...) are arranged in a plurality of spaces between the plurality of teeth and are longer than the thickness of the stator core (20) and protrude from both sides of the stator core (20), A plurality of U-phase connectors (211, 2121, 2122) which are conductive and connect one end to one or the other end to one of the plurality of U-phase conductors (111, 112, ...) protruding from the stator core (20), A conductive U-phase wire (11) connected to one end of one of the plurality of U-phase conductors (111, 112, ...) that does not have the U-phase connector connected to one end, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of V-phase conductors (121, 122, ...) are arranged in a plurality of spaces between the plurality of teeth and are longer than the thickness of the stator core (20) and protrude from both sides of the stator core (20), Multiple V-phase connectors (221, 2221, 2222) which are conductive and connect one end to one or the other end to one of the multiple V-phase conductors (121, 122, ...) protruding from the stator core (20), A conductive V-phase wire (12) connected to one end of one of the plurality of V-phase conductors (121, 122, ...) that does not have the V-phase connector connected to one end, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of W-phase conductors (131, 132, ...) are arranged in a plurality of spaces between the plurality of teeth and are longer than the thickness of the stator core (20) and protrude from both sides of the stator core (20), Multiple W-phase connectors (231, 2321, 2322) are conductive and connected to one end or the other end of the multiple W-phase conductors (131, 132, ...) protruding from the stator core (20), A conductive W-phase wire (13) connected to one end of one of the plurality of W-phase conductors (131, 132, ...) that does not have the W-phase connector connected to one end, A conductive neutral wire (240) connected to one end of a plurality of U-phase conductors (111, 112, ...) to which the U-phase connector is not connected and the U-phase wire (11) is not connected; one end of a plurality of V-phase conductors (121, 122, ...) to which the V-phase connector is not connected and the V-phase wire (12) is not connected; and one end of a plurality of W-phase conductors (131, 132, ...) to which the W-phase connector is not connected and the W-phase wire (13) is not connected. A heat transfer medium passage member (310) is provided, which is capable of allowing a heat transfer medium to flow through its interior, and is positioned on one side of the stator core (20). This passage member prevents the heat transfer medium flowing through the plurality of U-phase conductors (111, 112, ...), the plurality of V-phase conductors (121, 122, ...), and the plurality of W-phase conductors (131, 132, ...) from leaking to the outside from the point of contact with the stator core (20). A heat transfer medium passage member (320) is provided, which is located on the other side of the stator core (20) and allows a heat transfer medium to flow through its interior, preventing the heat transfer medium flowing through the plurality of U-phase conductors (111, 112, ...), the plurality of V-phase conductors (121, 122, ...), and the plurality of W-phase conductors (131, 132, ...) from leaking to the outside from the point of contact with the stator core (20). It is an electrical energy to mechanical energy converter.

[0009] Another aspect is, A stator core (20) with multiple teeth protruding from the base, A plate-like body that is conductive and has a flow channel through which a heat transfer medium can pass, wherein a plurality of U-phase conductors (111, 112, ...) are arranged in a plurality of spaces between the plurality of teeth and are longer than the thickness of the stator core (20) and protrude from both sides of the stator core (20), A plurality of U-phase connectors (211, 2121, 2122) which are conductive and connect one end to one or the other end to one of the plurality of U-phase conductors (111, 112, ...) protruding from the stator core (20), A U-phase wire (11) is connected to one end of one of the plurality of U-phase conductors (111, 112, ...) which has the U-phase connector connected to both its other end and its conductive U-phase conductor, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of V-phase conductors (121, 122, ...) are arranged in a plurality of spaces between the plurality of teeth and are longer than the thickness of the stator core (20) and protrude from both sides of the stator core (20), Multiple V-phase connectors (221, 2221, 2222) which are conductive and connect one end to one or the other end to one of the multiple V-phase conductors (121, 122, ...) protruding from the stator core (20), A V-phase wire (12) connected to one end of one of the plurality of V-phase conductors (121, 122, ...) to which the V-phase connector is connected to both the one end and the other end, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of W-phase conductors (131, 132, ...) are arranged in a plurality of spaces between the plurality of teeth and are longer than the thickness of the stator core (20) and protrude from both sides of the stator core (20), Multiple W-phase connectors (231, 2321, 2322) are conductive and connected to one end or the other end of the multiple W-phase conductors (131, 132, ...) protruding from the stator core (20), A conductive W-phase wire (13) connected to one end of one of the plurality of W-phase conductors (131, 132, ...) to which the W-phase connector is connected to both the one end and the other end, a neutral wire (240) that is conductive and connected to one end of a U-phase conductor among said plurality of U-phase conductors (111, 112, ...) to which said U-phase connector is connected only to the other end side, one end of a V-phase conductor among said plurality of V-phase conductors (121, 122, ...) to which said V-phase connector is connected only to the other end side, and one end of a W-phase conductor among said plurality of W-phase conductors (131, 132, ...) to which said W-phase connector is connected only to the other end side; one heat medium flow member (310) in which a heat medium can flow inside, disposed on one side of said stator core (20), and configured to prevent the heat medium flowing through said plurality of U-phase conductors (111, 112, ...), said plurality of V-phase conductors (121, 122, ...) and said plurality of W-phase conductors (131, 132, ...) from leaking to the outside from a location in contact with said stator core (20); the other heat medium flow member (320) in which a heat medium can flow inside, disposed on the other side of said stator core (20), and configured to prevent the heat medium flowing through said plurality of U-phase conductors (111, 112, ...), said plurality of V-phase conductors (121, 122, ...) and said plurality of W-phase conductors (131, 132, ...) from leaking to the outside from a location in contact with said stator core (20); which is an electrical energy-mechanical energy converter comprising: BRIEF DESCRIPTION OF THE DRAWINGS

[0010] [Figure 1] Figure 1 is a diagram showing a stator of an electrical energy-mechanical energy converter. [Figure 2] Figure 2 is a diagram showing an example of a flat conductor with a flow path. [Figure 3] Figure 3 is an exploded view showing an example of a rotating electrical machine. [Figure 4] Figure 4A is an assembly view of the rotating electrical machine shown in Figure 3 as viewed from an oblique left side, and Figure 4B is an assembly view as viewed from an oblique right side. [Figure 5] Figure 5 is an assembly view of the rotating electrical machine shown in Figure 3. [Figure 6]Fig. 6 is a developed view modeling the rotating electrical machine shown in Fig. 3. [Figure 7] Fig. 7 is a diagram illustrating the flow of a heat medium in the developed model view shown in Fig. 6. [Figure 8] Fig. 8 is a diagram illustrating the flow of electricity from a U-phase wire to a V-phase wire in the developed model view shown in Fig. 6. [Figure 9] Fig. 9 is a diagram illustrating the flow of electricity from a V-phase wire to a W-phase wire in the developed model view shown in Fig. 6. [Figure 10] Fig. 10 is a diagram illustrating the flow of electricity from a W-phase wire to a U-phase wire in the developed model view shown in Fig. 6. [Figure 11] Fig. 11 is an exploded view showing a second embodiment of the rotating electrical machine. [Figure 12] Fig. 12 is an assembly view of the rotating electrical machine shown in Fig. 11. [Figure 13] Fig. 13 is a developed view modeling the rotating electrical machine shown in Fig. 11. [Figure 14] Fig. 14 is an exploded view showing a third embodiment of the rotating electrical machine. [Figure 15] Fig. 15A is an assembly view of the rotating electrical machine shown in Fig. 14 as viewed from an oblique left direction, and Fig. 15B is an assembly view thereof as viewed from an oblique right direction. [Figure 16] Fig. 16 is a developed view modeling the rotating electrical machine according to a fourth embodiment. [Figure 17] Fig. 17 is a diagram illustrating the flow of electricity from a V-phase wire to a W-phase wire in the developed model view shown in Fig. 16. [Figure 18] Fig. 18 is a diagram illustrating the flow of electricity from a W-phase wire to a U-phase wire in the developed model view shown in Fig. 16. [Figure 19] Fig. 19 is a developed view modeling the rotating electrical machine according to a fifth embodiment. [Figure 20] Fig. 20 is a diagram illustrating the flow of electricity from a U-phase wire to a V-phase wire in the developed model view shown in Fig. 19. [Figure 21]Figure 21 is a diagram illustrating the flow of electricity from the V-phase to the W-phase in the model development diagram shown in Figure 19. [Figure 22] Figure 22 is a diagram illustrating the flow of electricity from the W phase to the U phase in the model development diagram shown in Figure 19. [Figure 23] Figure 23 is an exploded view modeling the rotating electric machine of the sixth embodiment. [Figure 24] Figure 24 is a diagram illustrating the flow of electricity from the U-phase to the V-phase in the model development diagram shown in Figure 23. [Figure 25] Figure 25 is a diagram illustrating the flow of electricity from the V-phase to the W-phase in the model development diagram shown in Figure 23. [Figure 26] Figure 26 is a diagram illustrating the flow of electricity from the W phase to the U phase in the model development diagram shown in Figure 23. [Figure 27] Figure 27 is an exploded view showing the seventh embodiment of the rotating electric machine. [Figure 28] Figure 28A is an assembly diagram of the rotating electric machine shown in Figure 27, viewed from the left at an oblique angle, and Figure 28B is an assembly diagram viewed from the right at an oblique angle. [Figure 29] Figure 29 is an exploded view modeling the rotating electric machine of the eighth embodiment. [Figure 30] Figure 30 is a diagram illustrating the flow of electricity from the U-phase to the V-phase in the model development diagram shown in Figure 29. [Figure 31] Figure 31 is a diagram illustrating the flow of electricity from the V-phase to the W-phase in the model development diagram shown in Figure 29. [Figure 32] Figure 32 is a diagram illustrating the flow of electricity from the W phase to the U phase in the model development diagram shown in Figure 29. [Figure 33] Figure 33 is an exploded view modeling the rotating electric machine of the ninth embodiment. [Figure 34] Figure 34 is a diagram illustrating the flow of electricity from the U-phase to the V-phase in the model development diagram shown in Figure 33. [Figure 35]Figure 35 is a diagram illustrating the flow of electricity from the V-phase to the W-phase in the model development diagram shown in Figure 33. [Figure 36] Figure 36 is a diagram illustrating the flow of electricity from the W phase to the U phase in the model development diagram shown in Figure 33. [Figure 37] Figure 37 is an exploded view modeling the rotating electric machine of the 10th embodiment. [Figure 38] Figure 38 is a diagram illustrating the flow of electricity from the U-phase to the V-phase in the model development diagram shown in Figure 37. [Figure 39] Figure 39 is a diagram illustrating the flow of electricity from the V-phase to the W-phase in the model development diagram shown in Figure 37. [Figure 40] Figure 40 is a diagram illustrating the flow of electricity from the W phase to the U phase in the model development diagram shown in Figure 37. [Figure 41] Figure 41 is an exploded view modeling the rotating electric machine of the 11th embodiment. [Figure 42] Figure 42 is a diagram illustrating the flow of electricity from the U-phase to the V-phase in the model development diagram shown in Figure 41. [Figure 43] Figure 43 is a diagram illustrating the flow of electricity from the V-phase to the W-phase in the model development diagram shown in Figure 41. [Figure 44] Figure 44 is a diagram illustrating the flow of electricity from the W phase to the U phase in the model development diagram shown in Figure 41. [Figure 45] Figure 45 shows another example 1 of a flat conductor with a flow channel. [Figure 46] Figure 46 shows another example 2 of a flat conductor with a flow channel. [Figure 47] Figure 47 shows another example 3 of a flat conductor with a flow channel. [Figure 48] Figure 48 shows another example 4 of a flat conductor with a flow channel. [Figure 49] Figure 49 shows another example 5 of a flat conductor with a flow channel. [Figure 50]Figure 50 shows another example 6 of a flat conductor with a flow channel. [Figure 51] Figure 51 shows another example 7 of a flat conductor with a flow channel. [Figure 52] Figure 52 shows another example 8 of a flat conductor with a flow channel. [Figure 53] Figure 53 shows an example in which one heat transfer medium passage member and the other heat transfer medium passage member used in the second embodiment are applied to the fourth embodiment. [Modes for carrying out the invention]

[0011] Embodiments and advantages of the present invention will be described in detail below with reference to the accompanying drawings.

[0012] (First Embodiment) Figure 1 shows the stator of an electrical-to-mechanical energy converter.

[0013] In the following explanation, unless otherwise specified, the electrical energy-to-mechanical energy converter will refer to a rotating electric machine that functions as either an electric motor or a generator.

[0014] Figure 1 shows the stator core of a rotating electric machine according to this embodiment. Note that Figure 1 shows a stator core used in an inner rotor type rotating electric machine, but this is just one example. The gist of the present invention may also be applied to an outer rotor type rotating electric machine.

[0015] As shown in Figure 1, the stator core 20 is cylindrical and has a structure in which multiple teeth 2001, 2002, ... are protruding from the inner circumferential wall of the base. In Figure 1, 192 teeth are protruding. The stator core 20 is formed by laminating thin sheets of electromagnetic steel.

[0016] Figure 2 shows an example of a flat conductor with a flow channel. Figure 2 shows an example of a flat conductor 100 with a flow channel. Hereafter, the flat conductor with a flow channel will be referred to simply as "conductor".

[0017] The conductor 100 shown in Figure 2 is a plate-shaped conductor with grooves 101 formed along its central axis, and its cross-section is angularly U-shaped. The conductor 100 is conductive, and a heat transfer medium can flow through the grooves 101. These grooves 101 serve as flow channels for the heat transfer medium. The conductor 100 has sufficient rigidity to withstand light pressure applied to both ends without bending. The surface of the conductor 100 is treated with an insulating varnish or the like for insulation. Such a conductor 100 is easy to manufacture and can be formed, for example, by press-forming a general flat bar. Alternatively, it may be formed by extrusion molding, etching, or cutting of a flat bar. Furthermore, the conductor 100 may be formed by casting or forging. Note that the shape of the conductor 100 is not limited to that shown in Figure 2. Other specific shapes will be described later.

[0018] The conductor 100 is placed in the space (slot) between the teeth of the stator core 20. Since the conductor 100 is longer than the thickness of the stator core 20, it protrudes from both sides of the stator core 20 when placed in the slots of the stator core 20.

[0019] Figure 3 is an exploded view showing an example of a rotating electric machine.

[0020] Figure 1 illustrates a stator core 20 with 192 protruding teeth, but this structure is extremely complex. Therefore, to facilitate understanding, the following explanation will use simplified structures. However, these are not merely models; they are also fully functional.

[0021] The rotating electric machine 1 shown in Figure 3 has a structure in which 12 teeth are protruding from the stator core 20, and 12 conductors are arranged in the spaces (slots) between the teeth. The rotor 50 is of the 4-pole type, and the rotating electric machine in Figure 3 is of the 12N4P type.

[0022] The stator core 20 is formed by laminating thin sheets of electromagnetic steel. Twelve teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. Twelve conductors 111, 112, ... are placed in the spaces (slots) between the teeth. Since the conductors are longer than the thickness of the stator core 20, they protrude from both sides of the stator core 20 when placed in the slots. After the conductors 111, 112, ... are placed, a thin coating material is applied to the inner circumference of the stator core 20. As will be described later, a heat transfer medium flows through the grooves of the conductors 111, 112, ... Since a thin coating material is applied to the inner circumference of the stator core 20, the heat transfer medium flowing through the grooves of the conductors 111, 112, ... does not leak to the inner circumference of the stator core 20.

[0023] Furthermore, heat transfer medium passage members 310 and 320 are arranged on both sides of the stator core 20.

[0024] The heat transfer medium passage member 310 includes a main body 311 and an annular portion 312. The main body 311 is made of metal (for example, aluminum). The main body 311 has a passage through which the heat transfer medium flows. This passage is divided into two by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging the heat transfer medium is connected to one of the sections (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying the heat transfer medium is connected to the other section (second heat transfer medium passage section 3102). The annular portion 312 is made of resin, for example, and is insulating. The annular portion 312 has a hole in it into which one end of a conductor is inserted. Connectors 211, 221, ... are connected to the conductor, allowing specific conductors to conduct electricity with each other. Further details will be described later. The connectors 211, 221, ... are configured such that two parallel, arc-shaped or annular members are connected by a radially extending straight section. With this configuration, the straight section of the connector comes into contact with the conductor, allowing for a longer contact length and facilitating laser welding and other processes. Furthermore, the main body 311 is liquid-tightly fixed to the annular section 312 to prevent the heat transfer medium flowing through the flow path of the main body 311 from leaking to the outside. The annular section 312 is not an essential component. If the main body 311 is liquid-tightly fixed to the stator core 20, the annular section 312 may be omitted.

[0025] The heat transfer medium passage member 320 includes a main body 321 and an annular portion 322. The main body 321 is made of metal (for example, aluminum). A passage for the heat transfer medium is formed in the main body 321. The annular portion 322 is made of resin, for example, and is insulating. A hole is formed in the annular portion 322 into which the other end of a conductor is inserted. Connectors 2121, 2221, ... are connected to the conductor, allowing specific conductors to conduct electricity with each other. Details will be described later. The main body 321 is liquid-tightly fixed to the annular portion 322 so that the heat transfer medium flowing through the passage in the main body 321 does not leak to the outside. Note that the annular portion 322 is not an essential component. If the main body 321 is liquid-tightly fixed to the stator core 20, the annular portion 322 may be omitted.

[0026] U-phase wire 11 is connected to one of the U-phase conductors among the 12 conductors. V-phase wire 12 is connected to one of the V-phase conductors among the 12 conductors. W-phase wire 13 is connected to one of the W-phase conductors among the 12 conductors.

[0027] Figure 4A is an assembly diagram of the rotating electric machine shown in Figure 3, viewed from the left at an oblique angle, and Figure 4B is an assembly diagram viewed from the right at an oblique angle. However, the main body parts 311 and 321 are shown detached. As can be seen in Figures 4A and 4B, twelve conductors 111, 112, ... are arranged in the spaces (slots) between the teeth of the stator core 20. On both sides of the stator core 20 are the annular portions 312 of the heat transfer medium passage member 310 and 322 of the heat transfer medium passage member 320. The twelve conductors 111, 112, ... protrude from the annular portions 312 and 322. Connectors 211, 221, ... are connected to these protruding portions, enabling current to flow between specific conductors.

[0028] Figure 5 is an assembly diagram of the rotating electric machine shown in Figure 3. Figure 5 shows the machine with the main body parts 311 and 321 attached. Figure 5 shows that one of the heat transfer medium passage members 310 is provided with a first heat transfer medium passage pipe 331 and a second heat transfer medium passage pipe 332. It can also be seen that the U-phase wire 11, V-phase wire 12, and W-phase wire 13 protrude from the heat transfer medium passage member 310.

[0029] Figure 6 is an unfolded diagram modeling the rotating electric machine shown in Figure 3.

[0030] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. In Figure 6, from left to right, these are the first tooth 2001, the second tooth 2002, the third tooth 2003, the fourth tooth 2004, the fifth tooth 2005, the sixth tooth 2006, the seventh tooth 2007, the eighth tooth 2008, the ninth tooth 2009, the tenth tooth 2010, the eleventh tooth 2011, and the twelfth tooth 2012.

[0031] Conductors are placed in the spaces (slots) between each tooth. A U-phase first conductor 111 is placed in the space (slot) between the first tooth 2001 and the second tooth 2002. A V-phase fourth conductor 124 is placed in the space (slot) between the second tooth 2002 and the third tooth 2003. A W-phase third conductor 133 is placed in the space (slot) between the third tooth 2003 and the fourth tooth 2004. A U-phase second conductor 112 is placed in the space (slot) between the fourth tooth 2004 and the fifth tooth 2005. A V-phase first conductor 121 is placed in the space (slot) between the fifth tooth 2005 and the sixth tooth 2006. A W-phase fourth conductor 134 is placed in the space (slot) between the sixth tooth 2006 and the seventh tooth 2007. A U-phase third conductor 113 is placed in the space (slot) between the seventh tooth 2007 and the eighth tooth 2008. A V-phase second conductor 122 is placed in the space (slot) between the eighth tooth 2008 and the ninth tooth 2009. A W-phase first conductor 131 is placed in the space (slot) between the ninth tooth 2009 and the tenth tooth 2010. A U-phase fourth conductor 114 is placed in the space (slot) between the tenth tooth 2010 and the eleventh tooth 2011. A V-phase third conductor 123 is placed in the space (slot) between the eleventh tooth 2011 and the twelfth tooth 2012. A W-phase second conductor 132 is placed in the space (slot) between the twelfth tooth 2012 and the first tooth 2001.

[0032] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0033] Twelve holes are formed on the bottom surface of one of the heat transfer medium passage members 310. Six of the holes are formed in the first heat transfer medium passage section 3101. The remaining six holes are formed in the second heat transfer medium passage section 3102.

[0034] One end of the U-phase first conductor 111, V-phase fourth conductor 124, W-phase third conductor 133, U-phase second conductor 112, V-phase first conductor 121, and W-phase fourth conductor 134 are inserted into the holes formed in the first heat transfer medium passage section 3101.

[0035] One end of the U-phase third conductor 113, V-phase second conductor 122, W-phase first conductor 131, U-phase fourth conductor 114, V-phase third conductor 123, and W-phase second conductor 132 are inserted into the holes formed in the second heat transfer medium passage section 3102.

[0036] The other heat transfer medium passage member 320 is positioned below (on the other end side of) the stator core 20. Twelve holes are formed in the bottom surface of the other heat transfer medium passage member 320. The other ends of the U-phase first conductor 111, V-phase fourth conductor 124, W-phase third conductor 133, U-phase second conductor 112, V-phase first conductor 121, W-phase fourth conductor 134, U-phase third conductor 113, V-phase second conductor 122, W-phase first conductor 131, U-phase fourth conductor 114, V-phase third conductor 123, and W-phase second conductor 132 are inserted into these holes.

[0037] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a flat conductor. A U-phase other-end first connector 2121 is connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0038] A U-phase one-end connector 211 is connected to one end of the U-phase second conductor 112 and one end of the U-phase third conductor 113, and the U-phase second conductor 112 and the U-phase third conductor 113 are electrically connected.

[0039] A second U-phase other-end connector 2122 is connected to the other end of the third U-phase conductor 113 and the other end of the fourth U-phase conductor 114, and the third U-phase conductor 113 and the fourth U-phase conductor 114 are electrically connected.

[0040] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. The V-phase wire 12 is a flat conductor. A V-phase other-end first connector 2221 is connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, making the V-phase first conductor 121 and the V-phase second conductor 122 electrically connected.

[0041] A V-phase one-end connector 221 is connected to one end of the V-phase second conductor 122 and one end of the V-phase third conductor 123, and the V-phase second conductor 122 and the V-phase third conductor 123 are electrically connected.

[0042] A second V-phase other-end connector 2222 is connected to the other end of the third V-phase conductor 123 and the other end of the fourth V-phase conductor 124, and the third V-phase conductor 123 and the fourth V-phase conductor 124 are electrically connected.

[0043] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. The W-phase wire 13 is a flat conductor. A W-phase other-end first connector 2321 is connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, making the W-phase first conductor 131 and the W-phase second conductor 132 electrically connected.

[0044] A W-phase one-end connector 231 is connected to one end of the W-phase second conductor 132 and one end of the W-phase third conductor 133, and the W-phase second conductor 132 and the W-phase third conductor 133 are electrically connected.

[0045] A W-phase other-end second connector 2322 is connected to the other end of the W-phase third conductor 133 and the other end of the W-phase fourth conductor 134, and the W-phase third conductor 133 and the W-phase fourth conductor 134 are electrically connected.

[0046] A neutral wire connector 240 is connected to one end of the U-phase fourth conductor 114, one end of the V-phase fourth conductor 124, and one end of the W-phase fourth conductor 134, and the U-phase fourth conductor 114, V-phase fourth conductor 124, and W-phase fourth conductor 134 are electrically connected.

[0047] Figure 7 illustrates the flow of the heat transfer medium in the model development diagram shown in Figure 6. The arrows indicate the direction of the heat transfer medium flow.

[0048] The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from the first heat transfer medium passage section 3101 of one heat transfer medium passage member 310 through one of the grooves of the U-phase first conductor 111, V-phase fourth conductor 124, W-phase third conductor 133, U-phase second conductor 112, V-phase first conductor 121, or W-phase fourth conductor 134 to reach the other heat transfer medium passage member 320. Then, it flows through one of the grooves of the U-phase third conductor 113, V-phase second conductor 122, W-phase first conductor 131, U-phase fourth conductor 114, V-phase third conductor 123, or W-phase second conductor 132 to reach the second heat transfer medium passage section 3102 of one heat transfer medium passage member 310 and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0049] Next, I will explain the flow of electricity. Figure 8 illustrates the flow of electricity from the U-phase to the V-phase in the model diagram shown in Figure 6. The arrows indicate the direction of the electricity flow.

[0050] First, let's explain the case where electricity flows from the U-phase wire 11 to the V-phase wire 12. The electricity entering from the U-phase wire 11 flows as follows: U-phase wire 11 → U-phase first conductor 111 → U-phase other end first connector 2121 → U-phase second conductor 112 → U-phase one end connector 211 → U-phase third conductor 113 → U-phase other end second connector 2122 → U-phase fourth conductor 114 → neutral wire connector 240 → V-phase fourth conductor 124 → V-phase other end second connector 2222 → V-phase third conductor 123 → V-phase one end connector 221 → V-phase second conductor 122 → V-phase other end first connector 2221 → V-phase first conductor 121 → V-phase wire 12.

[0051] Figure 9 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 6. The arrows indicate the direction of the electricity flow.

[0052] Next, we will explain the case where electricity flows from the V-phase wire 12 to the W-phase wire 13. The electricity entering from the V-phase wire 12 flows as follows: V-phase wire 12 → V-phase first conductor 121 → V-phase other end first connector 2221 → V-phase second conductor 122 → V-phase one end connector 221 → V-phase third conductor 123 → V-phase other end second connector 2222 → V-phase fourth conductor 124 → neutral wire connector 240 → W-phase fourth conductor 134 → W-phase other end second connector 2322 → W-phase third conductor 133 → W-phase one end connector 231 → W-phase second conductor 132 → W-phase other end first connector 2321 → W-phase first conductor 131 → W-phase wire 13.

[0053] Figure 10 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 6. The arrows indicate the direction of the electricity flow.

[0054] Next, we will explain the case where electricity flows from the W phase wire 13 to the U phase wire 11. The electricity entering from the W phase wire 13 flows as follows: W phase wire 13 → W phase first conductor 131 → W phase other end first connector 2321 → W phase second conductor 132 → W phase one end connector 231 → W phase third conductor 133 → W phase other end second connector 2322 → W phase fourth conductor 134 → neutral wire connector 240 → U phase fourth conductor 114 → U phase other end second connector 2122 → U phase third conductor 113 → U phase one end connector 211 → U phase second conductor 112 → U phase other end first connector 2121 → U phase first conductor 111 → U phase wire 11.

[0055] According to the embodiment described above, the heat transfer medium flows through the grooves of each conductor (flat conductor with flow channels), resulting in excellent cooling performance.

[0056] Furthermore, each conductor (flat conductor with flow path) is placed in the space (slot) between the teeth of the stator core 20, and one end of each conductor is inserted into a hole formed in one heat transfer medium passage member 310, while the other end is inserted into a hole formed in the other heat transfer medium passage member 320, thereby holding the conductors in place. In this way, it is not necessary to wind the conductor around the teeth as in a typical rotating electric machine, resulting in superior productivity.

[0057] Furthermore, the heat transfer medium is supplied from a first heat transfer medium passage pipe 331 provided in one of the heat transfer medium passage members 310, flows from the first heat transfer medium passage section 3101 through the grooves of one of the conductors to reach the other heat transfer medium passage member 320, flows through the grooves of the other conductor to reach the second heat transfer medium passage section 3102 of the one heat transfer medium passage member 310, and is discharged from the second heat transfer medium passage pipe 332. In this way, since both the supply and discharge points of the heat transfer medium are provided in one of the heat transfer medium passage members 310, the mounting advantages when attaching the rotating electric machine of this embodiment to equipment are excellent.

[0058] Furthermore, the conductor (flat conductor with channels) can be molded, for example, by pressing a general-purpose flat bar, making it easy to manufacture. Therefore, manufacturing costs can be kept low.

[0059] Furthermore, the conductor is flat (plate-shaped), and the connector is also flat. In particular, the part of the connector that contacts the conductor is a straight section. Therefore, the two can be connected by laser welding, making connection easy. In this respect as well, manufacturing costs can be kept low.

[0060] The conductive material is flat (plate-shaped), and its thickness and length can be freely specified. It can be used in rotating electric machines of various sizes.

[0061] Since the heat transfer fluid flows from the first heat transfer fluid passage section 3101 through one of the conductive grooves and then through another conductive groove, the heat transfer fluid passages (grooves) can be arranged in parallel, improving redundancy.

[0062] (Second Embodiment) Figure 11 is an exploded view showing a second embodiment of a rotating electric machine. In the following, parts that perform the same function as described above will be denoted by the same symbols, and redundant explanations will be omitted as appropriate.

[0063] In this second embodiment, the shapes of one heat transfer medium passage member 310 and the other heat transfer medium passage member 320 differ from those of the first embodiment. In other words, in the first embodiment, one of the heat transfer medium passage members 310 was divided into two sections by a pair of partitions 3100, but in this second embodiment, one of the heat transfer medium passage members 310 does not have partitions. Furthermore, in the second embodiment, one of the heat transfer medium passage members 310 is connected to a first heat transfer medium passage pipe 331 through which the heat transfer medium flows, but it is not connected to a second heat transfer medium passage pipe 332 through which the heat transfer medium flows.

[0064] The second heat transfer medium passage pipe 332 is connected to the other heat transfer medium passage member 320.

[0065] Figure 12 is an assembly diagram of the rotating electric machine shown in Figure 11. Figure 12 shows that one heat transfer medium passage member 310 is provided with a first heat transfer medium passage pipe 331, and the other heat transfer medium passage member 320 is provided with a second heat transfer medium passage pipe 332. It can also be seen that the U-phase wire 11, V-phase wire 12, and W-phase wire 13 protrude from the heat transfer medium passage member 310.

[0066] Figure 13 is an unfolded diagram modeling the rotating electric machine shown in Figure 11. The arrows indicate the direction of flow of the heat transfer medium.

[0067] Conductors are arranged in the spaces (slots) between the teeth of the stator core 20. The arrangement of these teeth and conductors, as well as the connector connection configuration, are the same as in the first embodiment, so a detailed explanation is omitted.

[0068] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. A first heat transfer medium passage pipe 331 for supplying or discharging the heat transfer medium is connected to the first heat transfer medium passage member 310. A second heat transfer medium passage pipe 332 for discharging or supplying the heat transfer medium is connected to the other heat transfer medium passage member 320.

[0069] The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from one of the heat transfer medium passage members 310 through one of the grooves of the U-phase first conductor 111, V-phase fourth conductor 124, W-phase third conductor 133, U-phase second conductor 112, V-phase first conductor 121, W-phase fourth conductor 134, U-phase third conductor 113, V-phase second conductor 122, W-phase first conductor 131, U-phase fourth conductor 114, V-phase third conductor 123, and W-phase second conductor 132, reaches the other heat transfer medium passage member 320, and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0070] As explained above, this second embodiment also provides excellent cooling performance because the heat transfer medium flows through the grooves of each conductor. In particular, in this second embodiment, the heat transfer medium is supplied from a first heat transfer medium passage pipe 331 provided in one of the heat transfer medium passage members 310, flows from the first heat transfer medium passage section 3101 through the grooves of one of the conductors, reaches the other heat transfer medium passage member 320, and is discharged from the second heat transfer medium passage pipe 332. In this way, the distance over which the heat transfer medium flows is short, resulting in even better cooling performance compared to the first embodiment.

[0071] Furthermore, since all the heat transfer fluid flows in one direction (from top to bottom in Figure 13), the flow resistance of the heat transfer fluid is low, and the output of heat transfer fluid supply equipment such as pumps can be kept low.

[0072] (Third embodiment) Figure 14 is an exploded view showing a third embodiment of a rotating electric machine. In the first and second embodiments, a thin coating material is applied to the inner circumference of the stator core 20 so that the heat transfer medium flowing through the grooves of the conductors 111, 112, ... leaks to the inner circumference of the stator core 20. In contrast, in the third embodiment, instead of applying a coating material, a slot sealing member 60 is added to the inner circumference of the stator core 20. This member prevents the heat transfer medium flowing through the grooves of the conductors 111, 112, ... from leaking to the inner circumference of the stator core 20. This improves productivity.

[0073] Furthermore, in the rotating electric machine of the third embodiment, the positions of the conductors 111, 112, ... can be fixed by the slot sealing member 60. Therefore, the annular portions 312 and 322 may be omitted. Accordingly, the annular portions 312 and 322 are not shown in Figure 14.

[0074] Figure 15A is an assembly diagram of the rotating electric machine shown in Figure 14, viewed from the left at an oblique angle, and Figure 15B is an assembly diagram viewed from the right at an oblique angle. However, the main body parts 311 and 321 are shown detached. As can be seen in Figures 15A and 15B, twelve conductors 111, 112, ... are arranged in the spaces (slots) between the teeth of the stator core 20. These twelve conductors 111, 112, ... protrude from the stator core 20. Connectors 211, 221, ... are connected to these protruding parts, enabling current to flow between specific conductors.

[0075] (Fourth embodiment) Figure 16 is an exploded view modeling the rotating electric machine of the fourth embodiment.

[0076] The rotating electric machine of this fourth embodiment differs from the rotating electric machine of the first embodiment in the connection of the conductors by connectors. The arrangement of the teeth and conductors is the same as in the first embodiment, so a description is omitted. Also, the configuration of the heat transfer medium passage member and the way the heat transfer medium flows are the same as in the first embodiment, so a description is omitted.

[0077] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. A U-phase one-end connector 211 is connected to one end of the U-phase first conductor 111 and one end of the U-phase third conductor 113, making the U-phase first conductor 111 and the U-phase third conductor 113 electrically connected.

[0078] A U-phase other-end first connector 2121 is connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, and the U-phase first conductor 111 and the U-phase second conductor 112 are electrically connected.

[0079] A second U-phase other-end connector 2122 is connected to the other end of the third U-phase conductor 113 and the other end of the fourth U-phase conductor 114, and the third U-phase conductor 113 and the fourth U-phase conductor 114 are electrically connected.

[0080] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. A V-phase one-end connector 221 is also connected to one end of the V-phase first conductor 121 and one end of the V-phase third conductor 123, making the V-phase first conductor 121 and the V-phase third conductor 123 electrically connected.

[0081] A V-phase other-end first connector 2221 is connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, and the V-phase first conductor 121 and the V-phase second conductor 122 are electrically connected.

[0082] A second V-phase other-end connector 2222 is connected to the other end of the third V-phase conductor 123 and the other end of the fourth V-phase conductor 124, and the third V-phase conductor 123 and the fourth V-phase conductor 124 are electrically connected.

[0083] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. A W-phase one-end connector 231 is connected to one end of the W-phase first conductor 131 and one end of the W-phase third conductor 133, making the W-phase first conductor 131 and the W-phase third conductor 133 electrically connected.

[0084] A W-phase other-end first connector 2321 is connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, and the W-phase first conductor 131 and the W-phase second conductor 132 are electrically connected.

[0085] A W-phase other-end second connector 2322 is connected to the other end of the W-phase third conductor 133 and the other end of the W-phase fourth conductor 134, and the W-phase third conductor 133 and the W-phase fourth conductor 134 are electrically connected.

[0086] Neutral wire connectors 240 are connected to one end of the U-phase second conductor 112, one end of the U-phase fourth conductor 114, one end of the V-phase second conductor 122, one end of the V-phase fourth conductor 124, one end of the W-phase second conductor 132, and one end of the W-phase fourth conductor 134, thereby creating electrical conductivity between the U-phase second conductor 112 and the U-phase fourth conductor 114, the V-phase second conductor 122 and the V-phase fourth conductor 124, and the W-phase second conductor 132 and the W-phase fourth conductor 134.

[0087] Next, we will explain the flow of electricity from the U-phase to the V-phase. The arrows indicate the direction of the electric flow. The electricity entering from the U-phase line 11 branches into two. In the first embodiment, the electricity flows from the U-phase line to the V-phase line without branching, and is a series connection type. In contrast, in this fourth embodiment, the electricity branches and then merges, and is a parallel connection type.

[0088] One of the branched flows as follows: U-phase one-end connector 211 → U-phase third conductor 113 → U-phase other-end second connector 2122 → U-phase fourth conductor 114 → neutral wire connector 240 → V-phase second conductor 122 → V-phase other-end first connector 2221 → V-phase first conductor 121 → V-phase wire 12.

[0089] Another flow is from the U-phase first conductor 111 → U-phase other end first connector 2121 → U-phase second conductor 112 → neutral wire connector 240, and then branches into two. Then, one of the connections is: V-phase second conductor 122 → V-phase other end first connector 2221 → V-phase first conductor 121 → V-phase wire 12. Another way the current flows is from the fourth conductor 124 of the V phase → the second connector 2222 on the other end of the V phase → the third conductor 123 of the V phase → the connector 221 on one end of the V phase → the V phase wire 12.

[0090] Figure 17 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 16. The arrows indicate the direction of the electricity flow.

[0091] Next, we will explain the case where electricity flows from the V-phase wire 12 to the W-phase wire 13. The electricity entering through the V-phase wire 12 branches into two. One flow is as follows: V-phase one-end connector 221 → V-phase third conductor 123 → V-phase other-end second connector 2222 → V-phase fourth conductor 124 → neutral wire connector 240 → W-phase fourth conductor 134 → W-phase other-end second connector 2322 → W-phase third conductor 133 → W-phase one-end connector 231 → W-phase wire 13.

[0092] Another flow is from the V-phase first conductor 121 → V-phase other end first connector 2221 → V-phase second conductor 122 → neutral wire connector 240, and then branches into two. Then, one of the connections is: W-phase second conductor 132 → W-phase other end first connector 2321 → W-phase first conductor 131 → W-phase wire 13. Another way the current flows is from the W-phase fourth conductor 134 → the W-phase other end second connector 2322 → the W-phase third conductor 133 → the W-phase one end connector 231 → the W-phase wire 13.

[0093] Figure 18 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 16. The arrows indicate the direction of the electricity flow.

[0094] Next, we will explain the case where electricity flows from the W phase wire 13 to the U phase wire 11. The electricity entering from the W phase wire 13 branches into two. One flow is as follows: W-phase one-end connector 231 → W-phase third conductor 133 → W-phase other-end second connector 2322 → W-phase fourth conductor 134 → neutral wire connector 240 → U-phase second conductor 112 → U-phase other-end first connector 2121 → U-phase first conductor 111 → U-phase wire 11.

[0095] Another flow is from the W-phase first conductor 131 → W-phase other end first connector 2321 → W-phase second conductor 132 → neutral wire connector 240, and then branches into two. And one way the current flows is from the U-phase second conductor 112 → U-phase other end first connector 2121 → U-phase first conductor 111 → U-phase wire 11. Another way the current flows is from the U-phase fourth conductor 114 → the U-phase other end second connector 2122 → the U-phase third conductor 113 → the U-phase one end connector 211 → the U-phase wire 11.

[0096] As described above, this fourth embodiment also provides excellent cooling performance because the heat transfer medium flows through the grooves of each conductor.

[0097] For the same current value, this fourth embodiment (parallel connection type) generates 1 / 4 the heat compared to the series connection type as in the first embodiment. At the same voltage and output, the parallel connection type rotates twice as fast as the series connection type. To achieve the same rotational speed, the motor length must be doubled, resulting in approximately half the heat generation. If twice the rotational speed compared to the series connection type is acceptable, then at the same voltage, output, and motor length, the heat generation is reduced to 1 / 4. In this way, heat generation can be kept low. Conversely, this means that with the same motor size and weight, the rotational speed is doubled, but twice the current can be supplied.

[0098] (Fifth embodiment) Figure 19 is an exploded view modeling the rotating electric machine of the fifth embodiment.

[0099] The rotating electric machines in each of the embodiments described above were all 12N4P type rotating electric machines that used a 4-pole type rotor with 12 conductors arranged in the space (slot) between the teeth.

[0100] In contrast, the rotating electric machine of this fifth embodiment is a 12N8P type rotating electric machine that uses an 8-pole type rotor with 12 conductors arranged in the space (slot) between the teeth. Specifically, the arrangement of the conductors is different from that of the rotating electric machine of the first embodiment, as is the connection of the conductors by connectors.

[0101] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. As shown in Figure 19, from left to right, they are the first tooth 2001, the second tooth 2002, the third tooth 2003, the fourth tooth 2004, the fifth tooth 2005, the sixth tooth 2006, the seventh tooth 2007, the eighth tooth 2008, the ninth tooth 2009, the tenth tooth 2010, the eleventh tooth 2011, and the twelfth tooth 2012.

[0102] A conductor is placed in the space (slot) between each tooth. A U-phase first conductor 111 is placed in the space (slot) between the first tooth 2001 and the second tooth 2002. A U-phase second conductor 112 is placed in the space (slot) between the second tooth 2002 and the third tooth 2003. A V-phase third conductor 123 is placed in the space (slot) between the third tooth 2003 and the fourth tooth 2004. A V-phase fourth conductor 124 is placed in the space (slot) between the fourth tooth 2004 and the fifth tooth 2005. A W-phase first conductor 131 is placed in the space (slot) between the fifth tooth 2005 and the sixth tooth 2006. A W-phase second conductor 132 is placed in the space (slot) between the sixth tooth 2006 and the seventh tooth 2007. A U-phase third conductor 113 is placed in the space (slot) between the seventh tooth 2007 and the eighth tooth 2008. A U-phase fourth conductor 114 is placed in the space (slot) between the eighth tooth 2008 and the ninth tooth 2009. A V-phase first conductor 121 is placed in the space (slot) between the ninth tooth 2009 and the tenth tooth 2010. A V-phase second conductor 122 is placed in the space (slot) between the tenth tooth 2010 and the eleventh tooth 2011. A W-phase third conductor 133 is placed in the space (slot) between the eleventh tooth 2011 and the twelfth tooth 2012. A W-phase fourth conductor 134 is placed in the space (slot) between the twelfth tooth 2012 and the first tooth 2001.

[0103] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0104] Twelve holes are formed on the bottom surface of one of the heat transfer medium passage members 310. Six of the holes are formed in the first heat transfer medium passage section 3101. The remaining six holes are formed in the second heat transfer medium passage section 3102.

[0105] One end of each of the U-phase first conductor 111, U-phase second conductor 112, V-phase third conductor 123, V-phase fourth conductor 124, W-phase first conductor 131, and W-phase second conductor 132 is inserted into the hole formed in the first heat transfer medium passage section 3101.

[0106] One end of each of the U-phase third conductor 113, U-phase fourth conductor 114, V-phase first conductor 121, V-phase second conductor 122, W-phase third conductor 133, and W-phase fourth conductor 134 is inserted into the hole formed in the second heat transfer medium passage section 3102.

[0107] The other heat transfer medium passage member 320 is positioned below (on the other end side of) the stator core 20. Twelve holes are formed in the bottom surface of the other heat transfer medium passage member 320. The other ends of the U-phase first conductor 111, U-phase second conductor 112, V-phase third conductor 123, V-phase fourth conductor 124, W-phase first conductor 131, W-phase second conductor 132, U-phase third conductor 113, U-phase fourth conductor 114, V-phase first conductor 121, V-phase second conductor 122, W-phase third conductor 133, and W-phase fourth conductor 134 are inserted into these holes.

[0108] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a solid conductor. A U-phase other-end first connector 2121 is connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0109] A U-phase one-end connector 211 is connected to one end of the U-phase second conductor 112 and one end of the U-phase third conductor 113, and the U-phase second conductor 112 and the U-phase third conductor 113 are electrically connected.

[0110] A second U-phase other-end connector 2122 is connected to the other end of the third U-phase conductor 113 and the other end of the fourth U-phase conductor 114, and the third U-phase conductor 113 and the fourth U-phase conductor 114 are electrically connected.

[0111] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. The V-phase wire 12 is a solid conductor. A V-phase other-end first connector 2221 is connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, making the V-phase first conductor 121 and the V-phase second conductor 122 electrically connected.

[0112] A V-phase one-end connector 221 is connected to one end of the V-phase second conductor 122 and one end of the V-phase third conductor 123, and the V-phase second conductor 122 and the V-phase third conductor 123 are electrically connected.

[0113] A second V-phase other-end connector 2222 is connected to the other end of the third V-phase conductor 123 and the other end of the fourth V-phase conductor 124, and the third V-phase conductor 123 and the fourth V-phase conductor 124 are electrically connected.

[0114] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. The W-phase wire 13 is a solid conductor. A W-phase other-end first connector 2321 is connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, making the W-phase first conductor 131 and the W-phase second conductor 132 electrically connected.

[0115] A W-phase one-end connector 231 is connected to one end of the W-phase second conductor 132 and one end of the W-phase third conductor 133, and the W-phase second conductor 132 and the W-phase third conductor 133 are electrically connected.

[0116] A W-phase other-end second connector 2322 is connected to the other end of the W-phase third conductor 133 and the other end of the W-phase fourth conductor 134, and the W-phase third conductor 133 and the W-phase fourth conductor 134 are electrically connected.

[0117] A neutral wire connector 240 is connected to one end of the U-phase fourth conductor 114, one end of the V-phase fourth conductor 124, and one end of the W-phase fourth conductor 134, and the U-phase fourth conductor 114, V-phase fourth conductor 124, and W-phase fourth conductor 134 are electrically connected.

[0118] (Flow of heat transfer medium) In Figure 19, the arrows indicate the direction of flow of the heat transfer medium. The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from the first heat transfer medium passage section 3101 of one of the heat transfer medium passage members 310 through one of the grooves of the U-phase first conductor 111, U-phase second conductor 112, V-phase third conductor 123, V-phase fourth conductor 124, W-phase first conductor 131, or W-phase second conductor 132 to reach the other heat transfer medium passage member 320.

[0119] The heat transfer medium then flows through the grooves of one of the U-phase third conductor 113, U-phase fourth conductor 114, V-phase first conductor 121, V-phase second conductor 122, W-phase third conductor 133, or W-phase fourth conductor 134, reaches the second heat transfer medium passage section 3102 of one of the heat transfer medium passage members 310, and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0120] Next, we will explain the flow of electricity from the U-phase to the V-phase. Figure 20 illustrates the flow of electricity from the U-phase to the V-phase in the model diagram shown in Figure 19. The arrows indicate the direction of the electricity flow. The electricity entering from the U-phase wire 11 flows as follows: U-phase wire 11 → U-phase first conductor 111 → U-phase other end first connector 2121 → U-phase second conductor 112 → U-phase one end connector 211 → U-phase third conductor 113 → U-phase other end second connector 2122 → U-phase fourth conductor 114 → neutral wire connector 240 → V-phase fourth conductor 124 → V-phase other end second connector 2222 → V-phase third conductor 123 → V-phase one end connector 221 → V-phase second conductor 122 → V-phase other end first connector 2221 → V-phase first conductor 121 → V-phase wire 12.

[0121] Figure 21 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 19. The arrows indicate the direction of the electricity flow.

[0122] Next, we will explain the case where electricity flows from the V-phase wire 12 to the W-phase wire 13. The electricity entering from the V-phase wire 12 flows as follows: V-phase wire 12 → V-phase first conductor 121 → V-phase other end first connector 2221 → V-phase second conductor 122 → V-phase one end connector 221 → V-phase third conductor 123 → V-phase other end second connector 2222 → V-phase fourth conductor 124 → neutral wire connector 240 → W-phase fourth conductor 134 → W-phase other end second connector 2322 → W-phase third conductor 133 → W-phase one end connector 231 → W-phase second conductor 132 → W-phase other end first connector 2321 → W-phase first conductor 131 → W-phase wire 13.

[0123] Figure 22 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 19. The arrows indicate the direction of the electricity flow.

[0124] Next, we will explain the case where electricity flows from the W phase wire 13 to the U phase wire 11. The electricity entering from the W phase wire 13 flows as follows: W phase wire 13 → W phase first conductor 131 → W phase other end first connector 2321 → W phase second conductor 132 → W phase one end connector 231 → W phase third conductor 133 → W phase other end second connector 2322 → W phase fourth conductor 134 → neutral wire connector 240 → U phase fourth conductor 114 → U phase other end second connector 2122 → U phase third conductor 113 → U phase one end connector 211 → U phase second conductor 112 → U phase other end first connector 2121 → U phase first conductor 111 → U phase wire 11.

[0125] By configuring the machine as described above in this embodiment, even in a 12N8P type rotating electric machine, the heat transfer medium can flow through the grooves of each conductor, resulting in excellent cooling performance.

[0126] (Sixth Embodiment) Figure 23 is an exploded view modeling the rotating electric machine of the sixth embodiment.

[0127] This sixth embodiment of the rotating electric machine is a 6N2P type rotating electric machine that uses a two-pole type rotor with six conductors arranged in the space (slot) between the teeth.

[0128] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. As shown in Figure 23, from left to right, they are the first tooth 2001, the second tooth 2002, the third tooth 2003, the fourth tooth 2004, the fifth tooth 2005, and the sixth tooth 2006.

[0129] Conductors are placed in the spaces (slots) between each tooth. A U-phase first conductor 111 is placed in the space (slot) between the first tooth 2001 and the second tooth 2002. A V-phase second conductor 122 is placed in the space (slot) between the second tooth 2002 and the third tooth 2003. A W-phase first conductor 131 is placed in the space (slot) between the third tooth 2003 and the fourth tooth 2004. A U-phase second conductor 112 is placed in the space (slot) between the fourth tooth 2004 and the fifth tooth 2005. A V-phase first conductor 121 is placed in the space (slot) between the fifth tooth 2005 and the sixth tooth 2006. A W-phase second conductor 132 is placed in the space (slot) between the sixth tooth 2006 and the first tooth 2001.

[0130] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0131] One of the heat transfer medium passage members 310 has six holes formed on its bottom surface. Three of the holes are formed in the first heat transfer medium passage section 3101. The remaining three holes are formed in the second heat transfer medium passage section 3102.

[0132] One end of the U-phase first conductor 111, the V-phase second conductor 122, and the W-phase first conductor 131 are inserted into the holes formed in the first heat transfer medium passage section 3101.

[0133] One end of the U-phase second conductor 112, the V-phase first conductor 121, and the W-phase second conductor 132 are inserted into the holes formed in the second heat transfer medium passage section 3102.

[0134] The other heat transfer medium passage member 320 is positioned below (on the other end side of) the stator core 20. Six holes are formed in the bottom surface of the other heat transfer medium passage member 320. The other ends of the U-phase first conductor 111, V-phase second conductor 122, W-phase first conductor 131, U-phase second conductor 112, V-phase first conductor 121, and W-phase second conductor 132 are inserted into these holes.

[0135] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a solid conductor. U-phase connectors 210 are connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0136] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. The V-phase wire 12 is a solid conductor. V-phase connectors 220 are connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, making the V-phase first conductor 121 and the V-phase second conductor 122 electrically connected.

[0137] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. The W-phase wire 13 is a solid conductor. W-phase connectors 230 are connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, making the W-phase first conductor 131 and the W-phase second conductor 132 electrically connected.

[0138] Furthermore, a neutral wire connector 240 is connected to one end of the U-phase second conductor 112, one end of the V-phase second conductor 122, and one end of the W-phase second conductor 132, and the U-phase second conductor 112, V-phase second conductor 122, and W-phase second conductor 132 are electrically connected.

[0139] (Flow of heat transfer medium) In Figure 23, the arrows indicate the direction of flow of the heat transfer medium. The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from the first heat transfer medium passage section 3101 of one of the heat transfer medium passage members 310 through one of the grooves of the U-phase first conductor 111, V-phase second conductor 122, or W-phase first conductor 131 to reach the other heat transfer medium passage member 320. Then, it flows through one of the grooves of the U-phase second conductor 112, V-phase first conductor 121, or W-phase second conductor 132 to reach the second heat transfer medium passage section 3102 of one of the heat transfer medium passage members 310, and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0140] Next, I will explain the flow of electricity. Figure 24 illustrates the flow of electricity from the U-phase to the V-phase in the model diagram shown in Figure 23. The arrows indicate the direction of the electricity flow. First, let's explain the flow of electricity from the U-phase to the V-phase. The electricity entering from the U-phase wire 11 flows as follows: U-phase wire 11 → U-phase first conductor 111 → U-phase connector 210 → U-phase second conductor 112 → neutral wire connector 240 → V-phase second conductor 122 → V-phase connector 220 → V-phase first conductor 121 → V-phase wire 12.

[0141] Figure 25 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 23. The arrows indicate the direction of the electricity flow.

[0142] Next, we will explain the case where electricity flows from the V-phase wire 12 to the W-phase wire 13. The electricity entering from the V-phase wire 12 flows as follows: V-phase wire 12 → V-phase first conductor 121 → V-phase connector 220 → V-phase second conductor 122 → neutral wire connector 240 → W-phase second conductor 132 → W-phase connector 230 → W-phase first conductor 131 → W-phase wire 13.

[0143] Figure 26 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 23. The arrows indicate the direction of the electricity flow.

[0144] Next, we will explain the case where electricity flows from the W phase wire 13 to the U phase wire 11. The electricity entering from the W phase wire 13 flows as follows: W phase wire 13 → W phase first conductor 131 → W phase connector 230 → W phase second conductor 132 → neutral wire connector 240 → U phase second conductor 112 → U phase connector 210 → U phase first conductor 111 → U phase wire 11.

[0145] By configuring the machine as described above in this embodiment, even in a 6N2P type rotating electric machine, the heat transfer medium can flow through the grooves of each conductor, resulting in excellent cooling performance.

[0146] (Seventh Embodiment) Figure 27 is an exploded view showing the seventh embodiment of the rotating electric machine. In the above embodiment, the connector (U-phase one-end connector 211, U-phase other-end first connector 2121, neutral wire connector 240, ...) is configured such that two parallel arc-shaped or annular members are connected by a radially extending straight section. With this configuration, the straight section of the connector comes into contact with the conductor, allowing for a longer contact length and facilitating laser welding, etc. However, the shape of the connector is not limited to this. It may be formed from a single arc-shaped or annular member. For example, it may be a shape like that illustrated in Figure 27, that is, a single arc-shaped or annular member with a protruding connection point to the conductor. In this way, the connector is compact and can be placed in a narrow space. Note that the connection point to the conductor does not have to be protruding.

[0147] Figure 28A is an assembly diagram of the rotating electric machine shown in Figure 27, viewed from the left at an oblique angle, and Figure 28B is an assembly diagram viewed from the right at an oblique angle. However, the main body parts 311 and 321 are shown detached. As can be seen in Figures 28A and 28B, twelve conductors 111, 112, ... are arranged in the spaces (slots) between the teeth of the stator core 20. On both sides of the stator core 20 are the annular portions 312 of the heat transfer medium passage member 310 and 322 of the heat transfer medium passage member 320. The twelve conductors 111, 112, ... protrude from the annular portions 312 and 322. Connectors 211, 221, ... are connected to these protruding portions from the outer circumference, enabling current to flow between specific conductors.

[0148] (Eighth embodiment) Figure 29 is an exploded view modeling the rotating electric machine of the eighth embodiment.

[0149] The rotating electric machine of this eighth embodiment is a 3N2P type rotating electric machine that uses a two-pole type rotor in which conductors are arranged in the spaces (slots) between the three teeth.

[0150] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. As shown in Figure 29, from left to right, these are the first tooth 2001, the second tooth 2002, and the third tooth 2003.

[0151] A conductor is placed in the space (slot) between each tooth. The space (slot) between the first tooth 2001 and the second tooth 2002 contains the U-phase second conductor 112 and the V-phase first conductor 121. In Figure 29, the U-phase second conductor 112 is located on the first tooth 2001 side and the V-phase first conductor 121 is located on the second tooth 2002 side. However, the opposite arrangement is also possible: the V-phase first conductor 121 may be located on the first tooth 2001 side and the U-phase second conductor 112 on the second tooth 2002 side. However, from an efficiency standpoint, it is preferable to have the U-phase second conductor 112 located on the first tooth 2001 side and the V-phase first conductor 121 located on the second tooth 2002 side, as shown in Figure 29. The same applies hereafter. The space (slot) between the second tooth 2002 and the third tooth 2003 contains the V-phase second conductor 122 and the W-phase first conductor 131. The space (slot) between the third tooth 2003 and the first tooth 2001 contains the W-phase second conductor 132 and the U-phase first conductor 111.

[0152] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0153] One of the heat transfer medium passage members 310 has six holes formed on its bottom surface. Three of the holes are formed in the first heat transfer medium passage section 3101. The remaining three holes are formed in the second heat transfer medium passage section 3102.

[0154] One end of the U-phase first conductor 111, the U-phase second conductor 112, and the V-phase first conductor 121 are inserted into the holes formed in the first heat transfer medium passage section 3101.

[0155] One end of the V-phase second conductor 122, the W-phase first conductor 131, and the W-phase second conductor 132 are inserted into the holes formed in the second heat transfer medium passage section 3102.

[0156] The other heat transfer medium passage member 320 is positioned below (on the other end side of) the stator core 20. Six holes are formed in the bottom surface of the other heat transfer medium passage member 320. The other ends of the U-phase first conductor 111, U-phase second conductor 112, V-phase first conductor 121, V-phase second conductor 122, W-phase first conductor 131, and W-phase second conductor 132 are inserted into these holes.

[0157] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a solid conductor. U-phase connectors 210 are connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0158] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. The V-phase wire 12 is a solid conductor. V-phase connectors 220 are connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, making the V-phase first conductor 121 and the V-phase second conductor 122 electrically connected.

[0159] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. The W-phase wire 13 is a solid conductor. W-phase connectors 230 are connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, making the W-phase first conductor 131 and the W-phase second conductor 132 electrically connected.

[0160] Furthermore, a neutral wire connector 240 is connected to one end of the U-phase second conductor 112, one end of the V-phase second conductor 122, and one end of the W-phase second conductor 132, and the U-phase second conductor 112, V-phase second conductor 122, and W-phase second conductor 132 are electrically connected.

[0161] (Flow of heat transfer medium) In Figure 29, the arrows indicate the direction of flow of the heat transfer medium. The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from the first heat transfer medium passage section 3101 of one heat transfer medium passage member 310 through one of the grooves of the U-phase first conductor 111, U-phase second conductor 112, or V-phase first conductor 121 to reach the other heat transfer medium passage member 320. Then, it flows through one of the grooves of the V-phase second conductor 122, W-phase first conductor 131, or W-phase second conductor 132 to reach the second heat transfer medium passage section 3102 of one heat transfer medium passage member 310 and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0162] Next, I will explain the flow of electricity. Figure 30 illustrates the flow of electricity from the U-phase to the V-phase in the model diagram shown in Figure 29. The arrows indicate the direction of the electricity flow. First, let's explain the flow of electricity from the U-phase to the V-phase. The electricity entering from the U-phase wire 11 flows as follows: U-phase wire 11 → U-phase first conductor 111 → U-phase connector 210 → U-phase second conductor 112 → neutral wire connector 240 → V-phase second conductor 122 → V-phase connector 220 → V-phase first conductor 121 → V-phase wire 12.

[0163] Figure 31 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 29. The arrows indicate the direction of the electricity flow.

[0164] Next, we will explain the case where electricity flows from the V-phase wire 12 to the W-phase wire 13. The electricity entering from the V-phase wire 12 flows as follows: V-phase wire 12 → V-phase first conductor 121 → V-phase connector 220 → V-phase second conductor 122 → neutral wire connector 240 → W-phase second conductor 132 → W-phase connector 230 → W-phase first conductor 131 → W-phase wire 13.

[0165] Figure 32 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 29. The arrows indicate the direction of the electricity flow.

[0166] Next, we will explain the case where electricity flows from the W phase wire 13 to the U phase wire 11. The electricity entering from the W phase wire 13 flows as follows: W phase wire 13 → W phase first conductor 131 → W phase connector 230 → W phase second conductor 132 → neutral wire connector 240 → U phase second conductor 112 → U phase connector 210 → U phase first conductor 111 → U phase wire 11.

[0167] By configuring the machine as described above in this embodiment, even in a 3N2P type rotating electric machine, the heat transfer medium can flow through the grooves of each conductor, resulting in excellent cooling performance.

[0168] (Ninth Embodiment) Figure 33 is an exploded view modeling the rotating electric machine of the ninth embodiment.

[0169] The rotating electric machine of this ninth embodiment is a 12N4P type rotating electric machine that uses a 4-pole type rotor with conductors arranged in the spaces (slots) between the 12 teeth. Furthermore, while the above embodiments were one-turn types in which electricity makes only one rotation around the teeth, this ninth embodiment is a two-turn type in which electricity makes two rotations around the teeth.

[0170] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. As shown in Figure 33, from left to right, they are the first tooth 2001, the second tooth 2002, the third tooth 2003, the fourth tooth 2004, the fifth tooth 2005, the sixth tooth 2006, the seventh tooth 2007, the eighth tooth 2008, the ninth tooth 2009, the tenth tooth 2010, the eleventh tooth 2011, and the twelfth tooth 2012.

[0171] Conductors are placed in the spaces (slots) between each tooth. In the space (slot) between the first tooth 2001 and the second tooth 2002, a U-phase first conductor 111 and a U-phase third conductor 113 are placed. In Figure 33, the U-phase first conductor 111 is placed on the first tooth 2001 side and the U-phase third conductor 113 is placed on the second tooth 2002 side, but conversely, the U-phase third conductor 113 may be placed on the first tooth 2001 side and the U-phase first conductor 111 may be placed on the second tooth 2002 side. Also, the U-phase first conductor 111 and the U-phase third conductor 113 may be placed so that they overlap front to back. The same applies below. In the space (slot) between the second tooth 2002 and the third tooth 2003, a V-phase sixth conductor 126 and a V-phase eighth conductor 128 are placed. The space (slot) between the third tooth 2003 and the fourth tooth 2004 contains the W-phase fifth conductor 135 and the W-phase seventh conductor 137. The space (slot) between the fourth tooth 2004 and the fifth tooth 2005 contains the U-phase second conductor 112 and the U-phase fourth conductor 114. The space (slot) between the fifth tooth 2005 and the sixth tooth 2006 contains the V-phase first conductor 121 and the V-phase third conductor 123. The space (slot) between the sixth tooth 2006 and the seventh tooth 2007 contains the W-phase sixth conductor 136 and the W-phase eighth conductor 138. The space (slot) between the seventh tooth 2007 and the eighth tooth 2008 contains the U-phase fifth conductor 115 and the U-phase seventh conductor 117. The space (slot) between the 8th tooth 2008 and the 9th tooth 2009 contains the V-phase 2nd conductor 122 and the V-phase 4th conductor 124. The space (slot) between the 9th tooth 2009 and the 10th tooth 2010 contains the W-phase 1st conductor 131 and the W-phase 3rd conductor 133. The space (slot) between the 10th tooth 2010 and the 11th tooth 2011 contains the U-phase 6th conductor 116 and the U-phase 8th conductor 118. The space (slot) between the 11th tooth 2011 and the 12th tooth 2012 contains the V-phase 5th conductor 125 and the V-phase 7th conductor 127.The space (slot) between the 12th tooth 2012 and the 1st tooth 2001 contains the W-phase second conductor 132 and the W-phase fourth conductor 134.

[0172] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0173] Twenty-four holes are formed on the bottom surface of one of the heat transfer medium passage members 310. Twelve of the holes are formed in the first heat transfer medium passage section 3101. The remaining twelve holes are formed in the second heat transfer medium passage section 3102.

[0174] One end of each of the following materials is inserted into the holes formed in the first heat transfer medium passage section 3101: U-phase first conductor 111, U-phase third conductor 113, V-phase sixth conductor 126, V-phase eighth conductor 128, W-phase fifth conductor 135, W-phase seventh conductor 137, U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, V-phase third conductor 123, W-phase sixth conductor 136, and W-phase eighth conductor 138.

[0175] One end of each of the following materials is inserted into the holes formed in the second heat transfer medium passage section 3102: U-phase fifth conductor 115, U-phase seventh conductor 117, V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, U-phase sixth conductor 116, U-phase eighth conductor 118, V-phase fifth conductor 125, V-phase seventh conductor 127, W-phase second conductor 132, and W-phase fourth conductor 134.

[0176] Below the stator core 20 (on the other end side), the other heat transfer medium passage member 320 is positioned. Twenty-four holes are formed on the bottom surface of the other heat transfer medium passage member 320. These holes are for the first U-phase conductor 111, the third U-phase conductor 113, the sixth V-phase conductor 126, the eighth V-phase conductor 128, the fifth W-phase conductor 135, the seventh W-phase conductor 137, the second U-phase conductor 112, the fourth U-phase conductor 114, the first V-phase conductor 121, the third V-phase conductor 123, the sixth W-phase conductor 136, the eighth W-phase conductor 138, The other ends of the U-phase fifth conductor 115, U-phase seventh conductor 117, V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, U-phase sixth conductor 116, U-phase eighth conductor 118, V-phase fifth conductor 125, V-phase seventh conductor 127, W-phase second conductor 132, and W-phase fourth conductor 134 are inserted.

[0177] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a solid conductor. A U-phase other-end first connector 2121 is connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0178] A U-phase one-end first connector 2111 is connected to one end of the U-phase second conductor 112 and one end of the U-phase third conductor 113, and the U-phase second conductor 112 and the U-phase third conductor 113 are electrically connected.

[0179] A second U-phase other-end connector 2122 is connected to the other end of the third U-phase conductor 113 and the other end of the fourth U-phase conductor 114, and the third U-phase conductor 113 and the fourth U-phase conductor 114 are electrically connected.

[0180] A U-phase one-end second connector 2112 is connected to one end of the U-phase fourth conductor 114 and one end of the U-phase fifth conductor 115, and the U-phase fourth conductor 114 and the U-phase fifth conductor 115 are electrically connected.

[0181] A third U-phase other-end connector 2123 is connected to the other end of the fifth U-phase conductor 115 and the other end of the sixth U-phase conductor 116, and the fifth U-phase conductor 115 and the sixth U-phase conductor 116 are electrically connected.

[0182] A U-phase one-end third connector 2113 is connected to one end of the U-phase sixth conductor 116 and one end of the U-phase seventh conductor 117, and the U-phase sixth conductor 116 and the U-phase seventh conductor 117 are electrically connected.

[0183] A U-phase other-end fourth connector 2124 is connected to the other end of the U-phase seventh conductor 117 and the other end of the U-phase eighth conductor 118, and the U-phase seventh conductor 117 and the U-phase eighth conductor 118 are electrically connected.

[0184] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. The V-phase wire 12 is a solid conductor. A V-phase other-end first connector 2221 is connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, making the V-phase first conductor 121 and the V-phase second conductor 122 electrically connected.

[0185] A V-phase one-end first connector 2211 is connected to one end of the V-phase second conductor 122 and one end of the V-phase third conductor 123, and the V-phase second conductor 122 and the V-phase third conductor 123 are electrically connected.

[0186] A second V-phase other-end connector 2222 is connected to the other end of the third V-phase conductor 123 and the other end of the fourth V-phase conductor 124, and the third V-phase conductor 123 and the fourth V-phase conductor 124 are electrically connected.

[0187] A V-phase one-end second connector 2212 is connected to one end of the V-phase fourth conductor 124 and one end of the V-phase fifth conductor 125, and the V-phase fourth conductor 124 and the V-phase fifth conductor 125 are electrically connected.

[0188] A third V-phase other-end connector 2223 is connected to the other end of the fifth V-phase conductor 125 and the other end of the sixth V-phase conductor 126, and the fifth V-phase conductor 125 and the sixth V-phase conductor 126 are electrically connected.

[0189] A V-phase one-end third connector 2213 is connected to one end of the V-phase sixth conductor 126 and one end of the V-phase seventh conductor 127, and the V-phase sixth conductor 126 and the V-phase seventh conductor 127 are electrically connected.

[0190] A V-phase other-end fourth connector 2224 is connected to the other end of the V-phase seventh conductor 127 and the other end of the V-phase eighth conductor 128, and the V-phase seventh conductor 127 and the V-phase eighth conductor 128 are electrically connected.

[0191] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. The W-phase wire 13 is a solid conductor. A W-phase other-end first connector 2321 is connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, making the W-phase first conductor 131 and the W-phase second conductor 132 electrically connected.

[0192] A W-phase one-end first connector 2311 is connected to one end of the W-phase second conductor 132 and one end of the W-phase third conductor 133, and the W-phase second conductor 132 and the W-phase third conductor 133 are electrically connected.

[0193] A W-phase other-end second connector 2322 is connected to the other end of the W-phase third conductor 133 and the other end of the W-phase fourth conductor 134, and the W-phase third conductor 133 and the W-phase fourth conductor 134 are electrically connected.

[0194] A W-phase one-end second connector 2312 is connected to one end of the W-phase fourth conductor 134 and one end of the W-phase fifth conductor 135, and the W-phase fourth conductor 134 and the W-phase fifth conductor 135 are electrically connected.

[0195] A W-phase other-end third connector 2323 is connected to the other end of the W-phase fifth conductor 135 and the other end of the W-phase sixth conductor 136, and the W-phase fifth conductor 135 and the W-phase sixth conductor 136 are electrically connected.

[0196] A W-phase one-end third connector 2313 is connected to one end of the W-phase sixth conductor 136 and one end of the W-phase seventh conductor 137, and the W-phase sixth conductor 136 and the W-phase seventh conductor 137 are electrically connected.

[0197] A W-phase other-end fourth connector 2324 is connected to the other end of the W-phase seventh conductor 137 and the other end of the W-phase eighth conductor 138, and the W-phase seventh conductor 137 and the W-phase eighth conductor 138 are electrically connected.

[0198] A neutral wire connector 240 is connected to one end of the U-phase eighth conductor 118, one end of the V-phase eighth conductor 128, and one end of the W-phase eighth conductor 138, and the U-phase eighth conductor 118, V-phase eighth conductor 128, and W-phase eighth conductor 138 are electrically connected.

[0199] (Flow of heat transfer medium) In Figure 33, the arrows indicate the direction of flow of the heat transfer medium. The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from the first heat transfer medium passage section 3101 of one heat transfer medium passage member 310 through one of the grooves of the U-phase first conductor 111, U-phase third conductor 113, V-phase sixth conductor 126, V-phase eighth conductor 128, W-phase fifth conductor 135, W-phase seventh conductor 137, U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, V-phase third conductor 123, W-phase sixth conductor 136, and W-phase eighth conductor 138 to reach the other heat transfer medium passage member 320. The heat transfer medium then flows through the grooves of one of the U-phase fifth conductor 115, U-phase seventh conductor 117, V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, U-phase sixth conductor 116, U-phase eighth conductor 118, V-phase fifth conductor 125, V-phase seventh conductor 127, W-phase second conductor 132, or W-phase fourth conductor 134, reaches the second heat transfer medium passage section 3102 of one of the heat transfer medium passage members 310, and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0200] Next, I will explain the flow of electricity. Figure 34 illustrates the flow of electricity from the U-phase to the V-phase in the model diagram shown in Figure 33. The arrows indicate the direction of the electricity flow. First, let's explain the flow of electricity from the U-phase to the V-phase. The electricity entering from the U-phase wire 11 passes through: U-phase wire 11 → U-phase first conductor 111 → U-phase other end first connector 2121 → U-phase second conductor 112 → U-phase one end first connector 2111 → U-phase third conductor 113 → U-phase other end second connector 2122 → U-phase fourth conductor 114 → U-phase one end second connector 2112 → U-phase fifth conductor 115 → U-phase other end third connector 2123 → U-phase sixth conductor 116 → U-phase one end third connector 2113 → U-phase seventh conductor 117 → U-phase other end fourth connector 2124 → U-phase eighth conductor 118 → The current flows from the male wire connector 240 → V-phase 8th conductor 128 → V-phase other end 4th connector 2224 → V-phase 7th conductor 127 → V-phase one end 3rd connector 2213 → V-phase 6th conductor 126 → V-phase other end 3rd connector 2223 → V-phase 5th conductor 125 → V-phase one end 2nd connector 2212 → V-phase 4th conductor 124 → V-phase other end 2nd connector 2222 → V-phase 3rd conductor 123 → V-phase one end 1st connector 2211 → V-phase 2nd conductor 122 → V-phase other end 1st connector 2221 → V-phase 1st conductor 121 → V-phase wire 12.

[0201] Figure 35 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 33. The arrows indicate the direction of the electricity flow. Next, we will explain the flow of electricity from the V-phase to the W-phase. The electricity entering from the V-phase wire 12 passes through: V-phase wire 12 → V-phase first conductor 121 → V-phase other end first connector 2221 → V-phase second conductor 122 → V-phase one end first connector 2211 → V-phase third conductor 123 → V-phase other end second connector 2222 → V-phase fourth conductor 124 → V-phase one end second connector 2212 → V-phase fifth conductor 125 → V-phase other end third connector 2223 → V-phase sixth conductor 126 → V-phase one end third connector 2213 → V-phase seventh conductor 127 → V-phase other end fourth connector 2224 → V-phase eighth conductor 128 → The current flows from the male wire connector 240 → W-phase eighth conductor 138 → W-phase other end fourth connector 2324 → W-phase seventh conductor 137 → W-phase one end third connector 2313 → W-phase sixth conductor 136 → W-phase other end third connector 2323 → W-phase fifth conductor 135 → W-phase one end second connector 2312 → W-phase fourth conductor 134 → W-phase other end second connector 2322 → W-phase third conductor 133 → W-phase one end first connector 2311 → W-phase second conductor 132 → W-phase other end first connector 2321 → W-phase first conductor 131 → W-phase wire 13.

[0202] Figure 36 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 33. The arrows indicate the direction of the electricity flow. Next, we will explain the flow of electricity from the W phase to the U phase. The electricity entering from the W phase wire 13 passes through: W phase wire 13 → W phase first conductor 131 → W phase other end first connector 2321 → W phase second conductor 132 → W phase one end first connector 2311 → W phase third conductor 133 → W phase other end second connector 2322 → W phase fourth conductor 134 → W phase one end second connector 2312 → W phase fifth conductor 135 → W phase other end third connector 2323 → W phase sixth conductor 136 → W phase one end third connector 2313 → W phase seventh conductor 137 → W phase other end fourth connector 2324 → W phase eighth conductor 138 → The current flows from the male wire connector 240 → U-phase eighth conductor 118 → U-phase other end fourth connector 2124 → U-phase seventh conductor 117 → U-phase one end third connector 2113 → U-phase sixth conductor 116 → U-phase other end third connector 2123 → U-phase fifth conductor 115 → U-phase one end second connector 2112 → U-phase fourth conductor 114 → U-phase other end second connector 2122 → U-phase third conductor 113 → U-phase one end first connector 2111 → U-phase second conductor 112 → U-phase other end first connector 2121 → U-phase first conductor 111 → U-phase wire 11.

[0203] By configuring the machine as described above in this embodiment, even in a 2-turn type 12N4P type rotating electric machine, the heat transfer medium can flow through the grooves of each conductor, resulting in excellent cooling performance.

[0204] Furthermore, by using a two-turn type design, it is possible to increase the output.

[0205] In this embodiment, the explanation uses a 2-turn type to avoid complexity, but it is also possible to create a 3-turn type or a type with more turns by increasing the number of conductors placed in the space (slot) between the teeth.

[0206] (Tenth embodiment) Figure 37 is an exploded view modeling the rotating electric machine of the 10th embodiment.

[0207] The rotating electric machine of this tenth embodiment is a 6N2P type rotating electric machine that uses a two-pole type rotor with conductors arranged in the spaces (slots) between the six teeth. Furthermore, while the sixth embodiment was a one-turn type in which electricity makes only one rotation around the teeth, this tenth embodiment is a two-turn type in which electricity makes two rotations around the teeth.

[0208] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. As shown in Figure 37, from left to right, they are the first tooth 2001, the second tooth 2002, the third tooth 2003, the fourth tooth 2004, the fifth tooth 2005, and the sixth tooth 2006.

[0209] Conductors are placed in the spaces (slots) between each tooth. In the space (slot) between the first tooth 2001 and the second tooth 2002, a U-phase first conductor 111 and a U-phase third conductor 113 are placed. In Figure 37, the U-phase first conductor 111 is placed on the first tooth 2001 side and the U-phase third conductor 113 is placed on the second tooth 2002 side, but conversely, the U-phase third conductor 113 may be placed on the first tooth 2001 side and the U-phase second conductor 112 may be placed on the second tooth 2002 side. Also, the U-phase first conductor 111 and the U-phase third conductor 113 may be placed so that they overlap front to back. The same applies below. In the space (slot) between the second tooth 2002 and the third tooth 2003, a V-phase second conductor 122 and a V-phase fourth conductor 124 are placed. The space (slot) between the third tooth 2003 and the fourth tooth 2004 contains the W-phase first conductor 131 and the W-phase third conductor 133. The space (slot) between the fourth tooth 2004 and the fifth tooth 2005 contains the U-phase second conductor 112 and the U-phase fourth conductor 114. The space (slot) between the fifth tooth 2005 and the sixth tooth 2006 contains the V-phase first conductor 121 and the V-phase third conductor 123. The space (slot) between the sixth tooth 2006 and the first tooth 2001 contains the W-phase second conductor 132 and the W-phase fourth conductor 134.

[0210] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0211] Twelve holes are formed on the bottom surface of one of the heat transfer medium passage members 310. Six of the holes are formed in the first heat transfer medium passage section 3101. The remaining six holes are formed in the second heat transfer medium passage section 3102.

[0212] One end of each of the U-phase first conductor 111, U-phase third conductor 113, V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, and W-phase third conductor 133 is inserted into the hole formed in the first heat transfer medium passage section 3101.

[0213] One end of each of the U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, V-phase third conductor 123, W-phase second conductor 132, and W-phase fourth conductor 134 is inserted into the hole formed in the second heat transfer medium passage section 3102.

[0214] The other heat transfer medium passage member 320 is positioned below (on the other end side of) the stator core 20. Twelve holes are formed in the bottom surface of the other heat transfer medium passage member 320. The other ends of the U-phase first conductor 111, U-phase third conductor 113, V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, V-phase third conductor 123, W-phase second conductor 132, and W-phase fourth conductor 134 are inserted into these holes.

[0215] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a solid conductor. A U-phase other-end first connector 2121 is connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0216] A U-phase one-end connector 211 is connected to one end of the U-phase second conductor 112 and one end of the U-phase third conductor 113, and the U-phase second conductor 112 and the U-phase third conductor 113 are electrically connected.

[0217] A second U-phase other-end connector 2122 is connected to the other end of the third U-phase conductor 113 and the other end of the fourth U-phase conductor 114, and the third U-phase conductor 113 and the fourth U-phase conductor 114 are electrically connected.

[0218] A V-phase wire 12 is connected to one end of the V-phase first conductor 121. The V-phase wire 12 is a solid conductor. A V-phase other-end first connector 2221 is connected to the other end of the V-phase first conductor 121 and the other end of the V-phase second conductor 122, making the V-phase first conductor 121 and the V-phase second conductor 122 electrically connected.

[0219] A V-phase one-end connector 221 is connected to one end of the V-phase second conductor 122 and one end of the V-phase third conductor 123, and the V-phase second conductor 122 and the V-phase third conductor 123 are electrically connected.

[0220] A second V-phase other-end connector 2222 is connected to the other end of the third V-phase conductor 123 and the other end of the fourth V-phase conductor 124, and the third V-phase conductor 123 and the fourth V-phase conductor 124 are electrically connected.

[0221] A W-phase wire 13 is connected to one end of the W-phase first conductor 131. The W-phase wire 13 is a solid conductor. A W-phase other-end first connector 2321 is connected to the other end of the W-phase first conductor 131 and the other end of the W-phase second conductor 132, making the W-phase first conductor 131 and the W-phase second conductor 132 electrically connected.

[0222] A W-phase one-end connector 231 is connected to one end side of the W-phase second conductor 132 and one end side of the W-phase third conductor 133, so that the W-phase second conductor 132 and the W-phase third conductor 133 are electrically conducted.

[0223] A W-phase other-end second connector 2322 is connected to the other end side of the W-phase third conductor 133 and the other end side of the W-phase fourth conductor 134, so that the W-phase third conductor 133 and the W-phase fourth conductor 134 are electrically conducted.

[0224] A neutral wire connector 240 is connected to one end side of the U-phase fourth conductor 114, one end side of the V-phase fourth conductor 124, and one end side of the W-phase fourth conductor 134, so that the U-phase fourth conductor 114, the V-phase fourth conductor 124, and the W-phase fourth conductor 134 are electrically conducted.

[0225] (Flow of Heating Medium) In FIG. 37, arrows indicate the flow direction of the heating medium. The heating medium supplied from the first heating medium flow pipe 331 flows from the first heating medium flow compartment 3101 of one heating medium flow member 310, through a groove of any one of the U-phase first conductor 111, the U-phase third conductor 113, the V-phase second conductor 122, the V-phase fourth conductor 124, the W-phase first conductor 131, and the W-phase third conductor 133, and reaches the other heating medium flow member 320. Then, the heating medium flows through a groove of any one of the U-phase second conductor 112, the U-phase fourth conductor 114, the V-phase first conductor 121, the V-phase third conductor 123, the W-phase second conductor 132, and the W-phase fourth conductor 134, reaches the second heating medium flow compartment 3102 of the one heating medium flow member 310, and is discharged from the second heating medium flow pipe 332. In the present embodiment, the description is given with the pattern that the heating medium is supplied from the first heating medium flow pipe 331 and discharged from the second heating medium flow pipe 332, but a pattern that the heating medium is supplied from the second heating medium flow pipe 332 and discharged from the first heating medium flow pipe 331 is also acceptable.

[0226] Next, the flow of electricity will be described. FIG. 38 is a diagram illustrating the flow of electricity from a U-phase wire to a V-phase wire in the developed model diagram shown in FIG. 37. Arrows indicate the flow direction of electricity. First, the flow of electricity from the U-phase wire to the V-phase wire will be described. Electricity entering from the U-phase wire 11 flows in the following sequence: U-phase wire 11 → U-phase first conductor 111 → U-phase other end side first connector 2121 → U-phase second conductor 112 → U-phase one end side connector 211 → U-phase third conductor 113 → U-phase other end side second connector 2122 → U-phase fourth conductor 114 → neutral wire connector 240 → V-phase fourth conductor 124 → V-phase other end side second connector 2222 → V-phase third conductor 123 → V-phase one end side connector 221 → V-phase second conductor 122 → V-phase other end side first connector 2221 → V-phase first conductor 121 → V-phase wire 12.

[0227] FIG. 39 is a diagram illustrating the flow of electricity from the V-phase wire to the W-phase wire in the developed model diagram shown in FIG. 37. Note that the arrows indicate the direction of electricity flow. Next, the flow of electricity from the V-phase wire to the W-phase wire will be described. Electricity entering from the V-phase wire 12 flows in the following sequence: V-phase wire 12 → V-phase first conductor 121 → V-phase other end side first connector 2221 → V-phase second conductor 122 → V-phase one end side connector 221 → V-phase third conductor 123 → V-phase other end side second connector 2222 → V-phase fourth conductor 124 → neutral wire connector 240 → W-phase fourth conductor 134 → W-phase other end side second connector 2322 → W-phase third conductor 133 → W-phase one end side connector 231 → W-phase second conductor 132 → W-phase other end side first connector 2321 → W-phase first conductor 131 → W-phase wire 13.

[0228] FIG. 40 is a diagram illustrating the flow of electricity from the W-phase wire to the U-phase wire in the developed model diagram shown in FIG. 37. Note that the arrows indicate the direction of electricity flow. Next, the flow of electricity from the W-phase wire to the U-phase wire will be described. The electricity entering from the W phase wire 13 flows as follows: W phase wire 13 → W phase first conductor 131 → W phase other end first connector 2321 → W phase second conductor 132 → W phase one end connector 231 → W phase third conductor 133 → W phase other end second connector 2322 → W phase fourth conductor 134 → neutral wire connector 240 → U phase fourth conductor 114 → U phase other end second connector 2122 → U phase third conductor 113 → U phase one end connector 211 → U phase second conductor 112 → U phase other end first connector 2121 → U phase first conductor 111 → U phase wire 11.

[0229] By configuring the machine as described above in this embodiment, even in a 2-turn type 6N2P type rotating electric machine, the heat transfer medium can flow through the grooves of each conductor, resulting in excellent cooling performance.

[0230] Furthermore, using a two-turn type design allows for higher voltage operation.

[0231] In this embodiment, the explanation uses a 2-turn type to avoid complexity, but it is also possible to create a 3-turn type or a type with more turns by increasing the number of conductors placed in the space (slot) between the teeth.

[0232] (11th embodiment) Figure 41 is an exploded view modeling the rotating electric machine of the 11th embodiment.

[0233] The rotating electric machine of this 11th embodiment is a 3N2P type rotating electric machine that uses a two-pole type rotor with conductors arranged in the spaces (slots) between the three teeth. Furthermore, while the 8th embodiment was a one-turn type in which electricity makes only one rotation around the teeth, this 11th embodiment is a two-turn type in which electricity makes two rotations around the teeth.

[0234] Multiple teeth are provided protruding from the inner circumferential wall of the base portion of the stator core 20. As shown in Figure 41, from left to right, these are the first tooth 2001, the second tooth 2002, and the third tooth 2003.

[0235] A conductor is placed in the space (slot) between each tooth. The space (slot) between the first tooth 2001 and the second tooth 2002 contains the U-phase second conductor 112, the U-phase fourth conductor 114, the V-phase first conductor 121, and the V-phase third conductor 123. In Figure 41, the U-phase second conductor 112 and the U-phase fourth conductor 114 are located on the first tooth 2001 side, while the V-phase first conductor 121 and the V-phase third conductor 123 are located on the second tooth 2002 side. Conversely, the V-phase first conductor 121 and the V-phase third conductor 123 may be located on the first tooth 2001 side, while the U-phase second conductor 112 and the U-phase fourth conductor 114 are located on the second tooth 2002 side. However, from an efficiency standpoint, it is desirable that the U-phase second conductor 112 and the U-phase fourth conductor 114 are arranged on the first tooth 2001 side, as shown in Figure 41, and the V-phase first conductor 121 and the V-phase third conductor 123 are arranged on the second tooth 2002 side. The same applies below. The space (slot) between the second tooth 2002 and the third tooth 2003 contains the V-phase second conductor 122, the V-phase fourth conductor 124, the W-phase first conductor 131, and the W-phase third conductor 133. The space (slot) between the third tooth 2003 and the first tooth 2001 contains the W-phase second conductor 132, the W-phase fourth conductor 134, the U-phase first conductor 111, and the U-phase third conductor 113.

[0236] One heat transfer medium passage member 310 is positioned above (at one end of) the stator core 20. The interior of one heat transfer medium passage member 310 is divided into two sections by a pair of partitions 3100. A first heat transfer medium passage pipe 331 for supplying or discharging heat transfer medium is connected to one section (first heat transfer medium passage section 3101). A second heat transfer medium passage pipe 332 for discharging or supplying heat transfer medium is connected to the other section (second heat transfer medium passage section 3102).

[0237] Twelve holes are formed on the bottom surface of one of the heat transfer medium passage members 310. Six of the holes are formed in the first heat transfer medium passage section 3101. The remaining six holes are formed in the second heat transfer medium passage section 3102.

[0238] One end of each of the U-phase first conductor 111, U-phase third conductor 113, U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, and V-phase third conductor 123 is inserted into the hole formed in the first heat transfer medium passage section 3101.

[0239] One end of each of the V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, W-phase second conductor 132, and W-phase second conductor 134 is inserted into the hole formed in the second heat transfer medium passage section 3102.

[0240] The other heat transfer medium passage member 320 is positioned below (on the other end side of) the stator core 20. Six holes are formed in the bottom surface of the other heat transfer medium passage member 320. The other ends of the U-phase first conductor 111, U-phase third conductor 113, U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, V-phase third conductor 123, V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, W-phase second conductor 132, and W-phase second conductor 134 are inserted into these holes.

[0241] A U-phase wire 11 is connected to one end of the U-phase first conductor 111. The U-phase wire 11 is a solid conductor. A U-phase other-end first connector 2121 is connected to the other end of the U-phase first conductor 111 and the other end of the U-phase second conductor 112, making the U-phase first conductor 111 and the U-phase second conductor 112 electrically connected.

[0242] A U-phase one-end connector 211 is connected to one end of the U-phase second conductor 112 and one end of the U-phase third conductor 113, and the U-phase second conductor 112 and the U-phase third conductor 113 are electrically connected.

[0243] A U-phase second connector 2122 on the other end side is connected to the other end side of the U-phase third conductor 113 and the other end side of the U-phase fourth conductor 114, and the U-phase third conductor 113 and the U-phase fourth conductor 114 are conducted.

[0244] A V-phase wire 12 is connected to one end side of the V-phase first conductor 121. The V-phase wire 12 is a solid conductor. A V-phase first connector 2221 on the other end side is connected to the other end side of the V-phase first conductor 121 and the other end side of the V-phase second conductor 122, and the V-phase first conductor 121 and the V-phase second conductor 122 are conducted.

[0245] A V-phase one end side connector 221 is connected to one end side of the V-phase second conductor 122 and one end side of the V-phase third conductor 123, and the V-phase second conductor 122 and the V-phase third conductor 123 are conducted.

[0246] A V-phase second connector 2222 on the other end side is connected to the other end side of the V-phase third conductor 123 and the other end side of the V-phase fourth conductor 124, and the V-phase third conductor 123 and the V-phase fourth conductor 124 are conducted.

[0247] A W-phase wire 13 is connected to one end side of the W-phase first conductor 131. The W-phase wire 13 is a solid conductor. A W-phase first connector 2321 on the other end side is connected to the other end side of the W-phase first conductor 131 and the other end side of the W-phase second conductor 132, and the W-phase first conductor 131 and the W-phase second conductor 132 are conducted.

[0248] A W-phase one end side connector 231 is connected to one end side of the W-phase second conductor 132 and one end side of the W-phase third conductor 133, and the W-phase second conductor 132 and the W-phase third conductor 133 are conducted.

[0249] A W-phase second connector 2322 on the other end side is connected to the other end side of the W-phase third conductor 133 and the other end side of the W-phase fourth conductor 134, and the W-phase third conductor 133 and the W-phase fourth conductor 134 are conducted.

[0250] A neutral wire connector 240 is connected to one end of the U-phase fourth conductor 114, one end of the V-phase fourth conductor 124, and one end of the W-phase fourth conductor 134, and the U-phase fourth conductor 114, V-phase fourth conductor 124, and W-phase fourth conductor 134 are electrically connected.

[0251] (Flow of heat transfer medium) In Figure 41, the arrows indicate the direction of flow of the heat transfer medium. The heat transfer medium supplied from the first heat transfer medium passage pipe 331 flows from the first heat transfer medium passage section 3101 of one heat transfer medium passage member 310 through one of the grooves of the U-phase first conductor 111, U-phase third conductor 113, U-phase second conductor 112, U-phase fourth conductor 114, V-phase first conductor 121, or V-phase third conductor 123 to reach the other heat transfer medium passage member 320. Then, it flows through one of the grooves of the V-phase second conductor 122, V-phase fourth conductor 124, W-phase first conductor 131, W-phase third conductor 133, W-phase second conductor 132, or W-phase fourth conductor 134 to reach the second heat transfer medium passage section 3102 of one heat transfer medium passage member 310 and is discharged from the second heat transfer medium passage pipe 332. In this embodiment, the heat transfer medium is described as being supplied from the first heat transfer medium passage pipe 331 and discharged from the second heat transfer medium passage pipe 332, but it may also be supplied from the second heat transfer medium passage pipe 332 and discharged from the first heat transfer medium passage pipe 331.

[0252] Next, I will explain the flow of electricity. Figure 42 illustrates the flow of electricity from the U-phase to the V-phase in the model diagram shown in Figure 41. The arrows indicate the direction of the electricity flow. First, let's explain the flow of electricity from the U-phase to the V-phase. The electricity entering from the U-phase wire 11 flows as follows: U-phase wire 11 → U-phase first conductor 111 → U-phase other end first connector 2121 → U-phase second conductor 112 → U-phase one end connector 211 → U-phase third conductor 113 → U-phase other end second connector 2122 → U-phase fourth conductor 114 → neutral wire connector 240 → V-phase fourth conductor 124 → V-phase other end second connector 2222 → V-phase third conductor 123 → V-phase one end connector 221 → V-phase second conductor 122 → V-phase other end first connector 2221 → V-phase first conductor 121 → V-phase wire 12.

[0253] Figure 43 illustrates the flow of electricity from the V-phase to the W-phase in the model diagram shown in Figure 41. The arrows indicate the direction of the electricity flow. Next, we will explain the flow of electricity from the V-phase to the W-phase. The electricity entering from the V-phase wire 12 flows as follows: V-phase wire 12 → V-phase first conductor 121 → V-phase other end first connector 2221 → V-phase second conductor 122 → V-phase one end connector 221 → V-phase third conductor 123 → V-phase other end second connector 2222 → V-phase fourth conductor 124 → neutral wire connector 240 → W-phase fourth conductor 134 → W-phase other end second connector 2322 → W-phase third conductor 133 → W-phase one end connector 231 → W-phase second conductor 132 → W-phase other end first connector 2321 → W-phase first conductor 131 → W-phase wire 13.

[0254] Figure 44 illustrates the flow of electricity from the W phase to the U phase in the model diagram shown in Figure 41. The arrows indicate the direction of the electricity flow. Next, we will explain the flow of electricity from the W phase to the U phase. The electricity entering from the W phase wire 13 flows as follows: W phase wire 13 → W phase first conductor 131 → W phase other end first connector 2321 → W phase second conductor 132 → W phase one end connector 231 → W phase third conductor 133 → W phase other end second connector 2322 → W phase fourth conductor 134 → neutral wire connector 240 → U phase fourth conductor 114 → U phase other end second connector 2122 → U phase third conductor 113 → U phase one end connector 211 → U phase second conductor 112 → U phase other end first connector 2121 → U phase first conductor 111 → U phase wire 11.

[0255] By configuring the machine as described above in this embodiment, even in a 2-turn type 3N2P type rotating electric machine, the heat transfer medium can flow through the grooves of each conductor, resulting in excellent cooling performance.

[0256] Furthermore, by using a two-turn type design, it is possible to increase the output.

[0257] In this embodiment, the explanation uses a 2-turn type to avoid complexity, but it is also possible to create a 3-turn type or a type with more turns by increasing the number of conductors placed in the space (slot) between the teeth.

[0258] Although embodiments of the present invention have been described above, these embodiments only represent a part of the application examples of the present invention, and are not intended to limit the technical scope of the present invention to the specific configurations of the above embodiments.

[0259] For example, in the above embodiment, the flat conductor with a channel 100 was a plate-shaped conductor with a groove 101 formed along its central axis, as shown in Figure 2, and its cross-section was angularly U-shaped. However, the flat conductor with a channel 100 is not limited to this shape.

[0260] For example, as shown in Figure 45, it may be a plate-shaped conductor with multiple parallel grooves 101 formed along the central axis. Although the flat conductor with flow channels 100 in Figure 45 has six grooves 101, it may have five or fewer, or seven or more.

[0261] Furthermore, as shown in Figure 46, an insulating tube 102 may be wrapped around the plate-shaped conductor. In this way, the heat transfer medium flowing through the groove 101 of the conductor does not leak to the inner circumference of the stator core, so it is not necessary to apply a coating material to the inner circumference of the stator core 20, nor is it necessary to add a slot sealing member 60.

[0262] Furthermore, as shown in Figure 47, the end portion 103 of the plate-shaped conductor does not have a flow path (groove), and grooves 101 may be formed in other portions.

[0263] Furthermore, as shown in Figure 48, grooves 101 may be formed on the front and back surfaces of the conductor. And, as shown in Figure 49, these grooves 101 may be formed in offset positions on the front and back surfaces.

[0264] Furthermore, as shown in Figure 50, the groove 101 may be a round groove, or as shown in Figure 51, it may be a triangular groove.

[0265] Furthermore, as shown in Figure 52, a channel for the heat transfer medium may be formed by a slit 101 that penetrates from the surface to the back surface.

[0266] These configurations may be combined as appropriate.

[0267] Furthermore, for example, in the above embodiment, the stator core was cylindrical, with a plurality of teeth protruding from the inner circumferential wall of the base portion, and a conductor was arranged in the space (slot) between the teeth. However, the stator core may be flat rather than cylindrical. Furthermore, it may have a structure in which multiple teeth protrude from the bottom surface that forms the base, with conductors placed in the spaces (slots) between the teeth. In this way, the present invention can be applied to a linear motor.

[0268] Furthermore, it is applicable to all types of rotating electric machines. For example, it can be used with axial flux-type rotating electric machines, SR rotating electric machines, induction rotating electric machines, synchronous rotating electric machines, and more. For example, by using liquid nitrogen or liquid helium as the heat transfer medium, a superconducting rotating electric machine can be created.

[0269] Furthermore, the heat transfer medium used may be a liquid insulating heat transfer medium, a gas such as air, or other substances such as antifreeze, liquefied fluorocarbons / halons, liquefied hydrocarbons, silicone oils, liquefied ammonia, liquefied nitrogen, liquefied hydrogen, liquefied noble gases, or liquefied carbon dioxide. If a heat transfer medium such as water is used, pure water with very low conductivity may be used, and appropriate additives such as corrosion inhibitors may be mixed in.

[0270] By using a cryogenic heat transfer medium such as liquid nitrogen or liquid helium, and a superconducting material as the conductor, a superconducting rotating electric machine can be created.

[0271] Furthermore, an ion exchange resin filter may be installed along the heat transfer medium path. By doing so, ions in the heat transfer medium can be removed, reducing its electrical conductivity and improving its insulation properties. This minimizes electrical leakage in the event of a leak of conductive heat transfer medium.

[0272] In addition to using power from pumps to circulate the cooling fluid, a natural circulation system that utilizes gravity, such as a heat pipe, can also be used to supply the heat transfer medium without the need for pumps.

[0273] Motor winding methods include concentrated winding, distributed winding, single-layer winding, double-layer winding, full-section winding, short-section winding, overlapping winding, concentric winding, and wave winding. These are combined and selected as appropriate during the design phase.

[0274] It is also possible to manufacture a type where the stator slot teeth are closed.

[0275] Furthermore, it is also possible to perform cooling from outside the stator core as needed.

[0276] In the above embodiment, examples of connectors were given in which two parallel, arc-shaped or annular members are connected by a radially extending straight section, or in which a single arc-shaped or annular member has a protruding connection point to a conductor. However, these shapes are merely examples, and the shape of the connector is not limited.

[0277] Furthermore, the connector may use common conductive wires such as so-called magnet wire or stranded wire.

[0278] The above embodiments can be combined as appropriate. For example, one heat transfer medium passage member 310 and the other heat transfer medium passage member 320 used in the second embodiment may be applied to the fourth embodiment. In this case, the configuration will be as shown in Figure 53.

[0279] Thus, the above embodiments can be combined as appropriate.

[0280] This application claims priority under Japanese Patent Application No. 2024-079429, filed with the Japan Patent Office on 15 May 2024, and all contents of that application are incorporated herein by reference.

Claims

1. A stator core with multiple teeth protruding from the base, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and comprises a first U-phase conductor that is longer than the thickness of the stator core and protrudes from both sides of the stator core, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and a second U-phase conductor that is longer than the thickness of the stator core and protrudes from both sides of the stator core, A conductive U-phase wire connected to one end of the first U-phase conductor protruding from the stator core, A conductive U-phase connector connected to the other end of the first U-phase conductor protruding from the stator core and the other end of the second U-phase conductor protruding from the stator core, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and comprises a first V-phase conductor that is longer than the thickness of the stator core and protrudes from both sides of the stator core, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and a second V-phase conductor that is longer than the thickness of the stator core and protrudes from both sides of the stator core, A conductive V-phase wire connected to one end of the first V-phase conductor protruding from the stator core, A conductive V-phase connector connected to the other end of the first V-phase conductor protruding from the stator core and the other end of the second V-phase conductor protruding from the stator core, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and comprises a first W-phase conductor that is longer than the thickness of the stator core and protrudes from both sides of the stator core, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, and is disposed in the space between the teeth, and a second W-phase conductor that is longer than the thickness of the stator core and protrudes from both sides of the stator core, A conductive W-phase wire connected to one end of the first W-phase conductor protruding from the stator core, A conductive W-phase connector connected to the other end of the first W-phase conductor protruding from the stator core and the other end of the second W-phase conductor protruding from the stator core, A conductive neutral wire connected to one end of the second U-phase conductor, one end of the second V-phase conductor, and one end of the second W-phase conductor, which protrude from the stator core, A heat transfer medium passage member is provided, through which a heat transfer medium can flow, and is positioned on one side of the stator core, preventing the heat transfer medium flowing through the first U-phase conductor, the second U-phase conductor, the first V-phase conductor, the second V-phase conductor, the first W-phase conductor, and the second W-phase conductor from leaking to the outside from the point of contact with the stator core. A heat transfer medium passage member is provided, which is capable of allowing a heat transfer medium to flow through its interior, and is positioned on the other side of the stator core, preventing the heat transfer medium flowing through the first U-phase conductor, the second U-phase conductor, the first V-phase conductor, the second V-phase conductor, the first W-phase conductor, and the second W-phase conductor from leaking to the outside from the point of contact with the stator core. An electrical energy to mechanical energy converter.

2. In the electrical energy-mechanical energy converter according to claim 1, The aforementioned heat transfer medium passage member is Distended to be in contact with one side of the stator core, and comprising a plurality of conductor insertion holes, each conductor insertion hole having an annular portion into which one end of any one of the first U-phase conductor, the second U-phase conductor, the first V-phase conductor, the second V-phase conductor, the first W-phase conductor, and the second W-phase conductor is inserted, The main body portion is liquid-tightly fixed to the annular portion, An electrical energy to mechanical energy converter.

3. In the electrical energy-mechanical energy converter according to claim 1, The other heat transfer medium passage member is, Distended in contact with the other side of the stator core, and comprising a plurality of other conductor insertion holes, each other conductor insertion hole has an annular portion into which the other end of any one of the first U-phase conductor and the second U-phase conductor and the first V-phase conductor and the second V-phase conductor and the first W-phase conductor and the second W-phase conductor is inserted, The main body portion is liquid-tightly fixed to the annular portion, An electrical energy to mechanical energy converter.

4. A stator core with multiple teeth protruding from the base, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of U-phase conductors are arranged in a plurality of spaces between the plurality of teeth and protrude from both sides of the stator core, and the U-phase conductors are longer than the thickness of the stator core. A plurality of U-phase connectors that are conductive and connected to one end or the other end of the plurality of U-phase conductors protruding from the stator core, A conductive U-phase wire connected to one end of one of the plurality of U-phase conductors, which does not have the U-phase connector connected to one end; A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of V-phase conductors are arranged in a plurality of spaces between the plurality of teeth and protrude from both sides of the stator core, and the V-phase conductors are longer than the thickness of the stator core. A plurality of V-phase connectors that are conductive and connected to one end or the other end of the plurality of V-phase conductors protruding from the stator core, A conductive V-phase wire connected to one end of one of the plurality of V-phase conductors, which does not have the V-phase connector connected to one end; A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of W-phase conductors are arranged in a plurality of spaces between the plurality of teeth and protrude from both sides of the stator core, and the W-phase conductors are longer than the thickness of the stator core. A plurality of W-phase connectors that are conductive and connected to one end or the other end of the plurality of W-phase conductors protruding from the stator core, A conductive W-phase wire connected to one end of one of the plurality of W-phase conductors, which does not have the W-phase connector connected to one end; A neutral wire connected to one end of a U-phase conductor which is conductive and to which the U-phase connector and U-phase wire are not connected, one end of a V-phase conductor which is which is conductive and to which the V-phase connector and V-phase wire are not connected, and one end of a W-phase conductor which is which is conductive and to which the U-phase connector and W-phase wire are not connected, A heat transfer medium passage member is provided, which is capable of allowing a heat transfer medium to flow through its interior, and is positioned on one side of the stator core, preventing the heat transfer medium flowing through the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors from leaking to the outside from the point of contact with the stator core. A heat transfer medium passage member is provided, which has a heat transfer medium flowing through its interior and is located on the other side of the stator core, and prevents the heat transfer medium flowing through the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors from leaking to the outside from the point of contact with the stator core. An electrical energy to mechanical energy converter.

5. In the electrical energy-mechanical energy converter according to claim 4, The aforementioned heat transfer medium passage member is Distended in contact with one side of the stator core, and comprising a plurality of conductor insertion holes, each conductor insertion hole has an annular portion into which one end of any of the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors is inserted, The main body portion is liquid-tightly fixed to the annular portion, An electrical energy to mechanical energy converter.

6. In the electrical energy-mechanical energy converter according to claim 4, The other heat transfer medium passage member is, Distended in contact with the other side of the stator core, and comprising a plurality of other conductor insertion holes, each other conductor insertion hole has an annular portion into which the other end of one of the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors is inserted, The main body portion is liquid-tightly fixed to the annular portion, An electrical energy to mechanical energy converter.

7. A stator core with multiple teeth protruding from the base, A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of U-phase conductors are arranged in a plurality of spaces between the plurality of teeth and protrude from both sides of the stator core, and the U-phase conductors are longer than the thickness of the stator core. A plurality of U-phase connectors that are conductive and connected to one end or the other end of the plurality of U-phase conductors protruding from the stator core, A U-phase wire connected to one end of one of the plurality of U-phase conductors, which is conductive and has the U-phase connector connected to both its other end and one end; A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of V-phase conductors are arranged in a plurality of spaces between the plurality of teeth and protrude from both sides of the stator core, and the V-phase conductors are longer than the thickness of the stator core. A plurality of V-phase connectors that are conductive and connected to one end or the other end of the plurality of V-phase conductors protruding from the stator core, A V-phase wire connected to one end of one of the plurality of V-phase conductors, which is conductive and has the V-phase connector connected to both its other end and one end; A plate-like body that is conductive and has a channel through which a heat transfer medium can flow, wherein a plurality of W-phase conductors are arranged in a plurality of spaces between the plurality of teeth and protrude from both sides of the stator core, and the W-phase conductors are longer than the thickness of the stator core. A plurality of W-phase connectors that are conductive and connected to one end or the other end of the plurality of W-phase conductors protruding from the stator core, A W-phase wire connected to one end of one of the plurality of W-phase conductors, which is conductive and has the W-phase connector connected to both its other end and one end; A conductive neutral wire connected to one end of a U-phase conductor among the plurality of U-phase conductors, where the U-phase connector is connected only to the other end; one end of a V-phase conductor among the plurality of V-phase conductors, where the V-phase connector is connected only to the other end; and one end of a W-phase conductor among the plurality of W-phase conductors, where the W-phase connector is connected only to the other end; A heat transfer medium passage member is provided, which is capable of allowing a heat transfer medium to flow through its interior, and is positioned on one side of the stator core, preventing the heat transfer medium flowing through the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors from leaking to the outside from the point of contact with the stator core. A heat transfer medium passage member is provided, which has a heat transfer medium flowing through its interior and is located on the other side of the stator core, and prevents the heat transfer medium flowing through the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors from leaking to the outside from the point of contact with the stator core. An electrical energy to mechanical energy converter.

8. In the electrical energy-mechanical energy converter according to claim 7, The aforementioned heat transfer medium passage member is Distended in contact with one side of the stator core, and comprising a plurality of conductor insertion holes, each conductor insertion hole has an annular portion into which one end of any of the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors is inserted, The main body portion is liquid-tightly fixed to the annular portion, An electrical energy to mechanical energy converter.

9. In the electrical energy-mechanical energy converter according to claim 7, The other heat transfer medium passage member is, Distended in contact with the other side of the stator core, and comprising a plurality of other conductor insertion holes, each other conductor insertion hole has an annular portion into which the other end of one of the plurality of U-phase conductors, the plurality of V-phase conductors, and the plurality of W-phase conductors is inserted, The main body portion is liquid-tightly fixed to the annular portion, An electrical energy to mechanical energy converter.

10. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, The flow path through which the heat transfer medium can pass is a groove formed by pressing, extruding, etching, or cutting a plate-shaped material. An electrical energy to mechanical energy converter.

11. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, The flow path through which the heat transfer medium can pass is a slit that penetrates from the surface to the back of the plate-like body. An electrical energy to mechanical energy converter.

12. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, A coating material is applied to the inner circumference of the stator core so that the heat transfer medium flowing through the passage through which the heat transfer medium can pass does not leak to the inner circumference of the stator core. An electrical energy to mechanical energy converter.

13. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, The stator core has a slot sealing member positioned on its inner circumference, which prevents the heat transfer medium flowing through a channel through which the heat transfer medium can pass from leaking to the inner circumference side of the stator core. An electrical energy to mechanical energy converter.

14. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, The plate-shaped body has a channel through which the heat transfer medium can flow, and an insulating tube is wrapped around the periphery of the plate-shaped body. An electrical energy to mechanical energy converter.

15. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, At least one of the U-phase connector, the V-phase connector, the W-phase connector, and the neutral wire is configured such that two parallel arc-shaped or annular members are connected by a radially extending straight portion. An electrical energy to mechanical energy converter.

16. In the electrical energy-mechanical energy converter according to any one of claims 1 to 9, At least one of the U-phase connector, the V-phase connector, the W-phase connector, and the neutral wire is formed by a single arc-shaped or annular member. An electrical energy to mechanical energy converter.

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