JP5776739B2 - Winding switch and vehicle - Google Patents

Description

  The present invention relates to a motor and a vehicle including the motor, and more particularly to a winding switch and a vehicle including the same.

  2. Description of the Related Art Conventionally, regarding a motor having a motor main body and a winding switch that switches the winding of the motor main body, a structure in which a winding switch is provided on the outer peripheral surface of the motor main body has been proposed (for example, Patent Document 1). reference).

  FIG. 13 is a diagram showing a conventional motor and driving apparatus having the above-described structure. The driving device 91 is connected to the motor 92 via the motor cable 93 and the signal line 94. The motor 92 includes a motor main body 921 and a winding switch 922. The driving device 91 drives the motor main body 921 and outputs a control signal corresponding to the driving status of the motor main body 921 to the winding switch 922 via the signal line 94. The winding switch 922 is provided on the outer peripheral surface of the motor main body 921 and switches the winding of the motor main body 921 according to the control signal.

Japanese Utility Model Publication No. 64-37364

  In the motor having the motor main body and the winding switching device as described above, both the motor main body and the winding switching device generate heat. Therefore, it is desired to cool them efficiently. However, in the above conventional motor, the motor main body and the winding switch are merely cooled by natural air cooling, and these cannot be efficiently cooled.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a winding switch that can be cooled more efficiently than before and a vehicle including the same.

The present invention has been made to solve the above problems, and the winding switch according to the present invention is provided on the non-load side of the motor main body, and switches the winding of the motor main body. A heat generating component comprising a first casing member and a second casing member and including a semiconductor switching element; and an outer surface side of the first casing member opposite to the second casing member; wherein the first casing member of the second housing member mounted on at least one sides of the outer surface of the opposite side, the winding switching housing, the first housing member and the second housing member In combination, the heat generating component formed between the inner surface of the first casing member on the second casing member side and the inner surface of the second casing member on the first casing member side is cooled. And a winding switching device side cooling liquid path for carrying out .

Preferably, the winding switching device side cooling liquid path has a shape in which one end and the other end are arranged in the same direction side of the winding switching housing and are folded in a region corresponding to a region where the heat generating component is attached. Good.
Also preferably, fever part, when the outer surface and the motor housing side of the first housing member present on the motor housing side of the motor main body is provided on each of the outer surface of the second housing member on the opposite side Good.

Further preferably, the winding switching housing, the other components other than the heat generating component also includes, all heat-generating components, and other components, are present on the opposite side to the motor housing side of the motors body portion It may be provided on the outer surface of the two housing members .

  Preferably, one end of the motor side cooling liquid path provided in the motor casing of the motor body is provided on the outer surface of the motor casing in contact with the outside of the motor, and one end of the winding switch side cooling liquid path. Is provided on the outer surface of the winding switching housing in contact with the outside of the motor, and the other end of the motor side cooling liquid path and the other end of the winding switching side cooling liquid path may be coupled.

  In this case, the other end of the motor side cooling liquid path is provided on the outer surface of the motor casing in contact with the winding switching casing, and the other end of the winding switching section side cooling liquid path is a winding in contact with the motor casing. It may be provided at a position on the outer surface of the switching housing and coupled to the other end of the motor-side cooling liquid path.

  Alternatively, the coolant may flow in from one end of the winding switch side cooling liquid path and flow out from one end of the motor side cooling liquid path, or the cooling liquid may flow from one end of the motor side cooling liquid path. It may flow in and flow out from one end of the winding switch side cooling liquid path.

The winding switching device according to the present invention is a winding switching device that is provided on the non-load side of the motor main body portion and switches the winding of the motor main body portion. A winding switching housing attached to at least one of the two sides in the direction, and a winding switch-side cooling liquid path provided in the winding switching housing so as to cool the heat-generating component via a wall surface; And a signal line terminal for inputting a control signal from an inverter for controlling the motor body, provided in a portion other than the wall surface in the winding switching housing, and the winding switching device side coolant The path is branched inside the winding switching housing, and the first end and the second end of the winding switching device side cooling liquid path are provided on the outer surface of the winding switching housing in contact with the outside of the motor, The third end of the winding switch side coolant path is the motor housing of the motor body. Provided on the outer surface of the winding switching housing that contacts the motor is one end of the motor side cooling fluid passage provided in the housing, winding a outer surface of the switch housing and contact the motor housing the winding switching unit side The other end of the motor side cooling liquid path is provided on the outer surface of the motor casing that contacts the outside of the motor .

The winding switching device according to the present invention is a winding switching device that is provided on the non-load side of the motor main body portion and switches the winding of the motor main body portion. A winding switching housing attached to at least one of the two sides in the direction, and a winding switch-side cooling liquid path provided in the winding switching housing so as to cool the heat-generating component via a wall surface; A signal line terminal for inputting a control signal from an inverter that is provided in a portion other than the wall surface of the winding switching housing and that controls the motor body, and the motor housing of the motor body motor side cooling fluid channel provided in is branched inside the motors housing, first and second ends of the motor side cooling fluid path, the outer surface of the motor casing in contact with the outside of the motor The third end of the motor-side coolant path is Provided on the outer surface of the motor casing in contact with the switching casing, and one end of the winding switch side cooling liquid path is provided on the outer surface of the winding switching casing in contact with the outside of the motor, the other end of the road is Ru provided in a position coupled with the third end of the motor side cooling fluid path to a outer surface of the winding switching housing that contacts the motor housing.

Preferably, one end and the other end of the motor side cooling liquid path provided in the motor casing of the motor main body are provided on the outer surface of the motor casing of the motor main body contacting the outside of the motor. One end and the other end of the side cooling liquid passage may be provided on the outer surface of the winding switching housing in contact with the outside of the motor.

Preferably, the winding switching housing is provided on the outer surface of the motor body on the side opposite to the load of the motor housing.
Further, a vehicle according to the present invention includes a motor main body having windings, and a winding switch provided on a non-load side of the motor main body and switching the windings of the motor main body. And a drive device that controls switching of the winding switching device, wherein the winding switching device includes a first housing member and a second housing member, and includes a semiconductor switching element. and attached to at least hand of the second casing member opposite to the outer surface side to the first casing member opposite to the outer surface side and the second casing member of the first housing member In addition, the winding switching housing, the first housing member, and the second housing member are combined, whereby the inner surface of the first housing member on the second housing member side and the second housing The heat generating part formed between the inner surfaces of the members on the first housing member side Having a winding switching unit side coolant channel for cooling the.

  ADVANTAGE OF THE INVENTION According to this invention, the winding switch which can be cooled more efficiently than before, and a vehicle provided with the same can be provided.

The figure which showed an example of the cooling system which concerns on Example 1 of this invention The perspective view of the motor which concerns on Example 1 of this invention. 1 is an exploded perspective view of a winding switch 5 provided in a motor according to Embodiment 1 of the present invention. The front view of the motor which concerns on Example 1 of this invention. Sectional drawing of the motor which concerns on Example 1 of this invention. Sectional drawing of the motor which concerns on Example 2 of this invention. The figure which showed an example of the cooling system which concerns on Example 3 of this invention Sectional drawing of the motor which concerns on Example 3 of this invention. Sectional drawing of the motor which concerns on Example 4 of this invention. Sectional drawing of the motor which concerns on Example 5 of this invention. The figure which showed an example of the cooling system which concerns on Example 6 of this invention The figure which showed the other example of the cooling system which concerns on Example 6 of this invention The figure which shows the conventional motor and drive device

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  First, an example of a cooling system according to Embodiment 1 of the present invention will be described with reference to FIG. FIG. 1 is a diagram illustrating an example of a cooling system according to Embodiment 1 of the present invention.

  In FIG. 1, the cooling system is mounted on a vehicle and includes a radiator 1, a pump 2, an inverter 3, and a motor 4. The motor 4 includes a winding switch 5 and a motor body 6. The motor main body 6 has a winding and a motor-side coolant path for cooling the winding. The winding switch 5 includes a heat generating component such as a bipolar transistor or a semiconductor switching element such as an IGBT used for switching the winding of the motor main body 6, and a winding switch side coolant for cooling the heat generating component. Road. The winding switch 5 is provided on the outer surface of the motor body 6 on the side opposite to the load. The inverter 3 is a drive device having a third coolant path that controls the switching of the winding switch 5 according to the drive status of the motor 4 and applies a drive voltage to the windings of the motor body 6. As the circuit configuration of the winding of the motor main body 6, the circuit configuration of the winding switch 5, and the control method of the inverter 3, for example, the one disclosed in Japanese Patent Application Laid-Open No. 2003-111492 is used. The detailed explanation is omitted. The radiator 1 is a cooling device that cools a coolant C such as water. The pump 2 is a device that applies pressure to the coolant C and circulates the coolant C in the cooling system.

  In FIG. 1, the coolant C cooled by the radiator 1 flows through the third coolant path of the inverter 3 via the pump 2 and cools the heat generating components of the inverter 3. The coolant C that has flowed through the third coolant path flows through the winding switch-side coolant path of the winding switch 5 and cools the heat generating components. The coolant C that has flowed through the winding switch-side coolant passage flows through the motor-side coolant passage of the motor body 6 to cool the winding. The coolant C that has flowed through the motor-side coolant path again flows into the radiator 1 and is cooled by the radiator 1. The coolant C cooled by the radiator 1 again flows through the third coolant path of the inverter 3 via the pump 2. Through such a path, the coolant C circulates in the cooling system and cools the heat generating components and the windings.

  Next, a specific configuration of the motor 4 according to the present embodiment will be described with reference to FIGS. FIG. 2 is a perspective view of the motor 4 according to the present embodiment. O in FIG. 2 indicates the rotation axis of the shaft 619. FIG. 3 is an exploded perspective view of the winding switch 5 provided in the motor 4 according to the present embodiment. FIG. 4 is a front view of the motor 4 according to the present embodiment. FIG. 5 is a cross-sectional view of the motor 4 according to the present embodiment cut along a line AOB in FIG. 4 and a cross section thereof viewed from the arrow in FIG.

  2 to 5, the motor 4 includes a motor main body 4 and a winding switch 5. The motor body 6 includes a frame 611, piping members 613 and 614, a stator 615, a rotor 616, bearings 617 and 618, a shaft 619, a resolver 620, an anti-load side bracket 621, and a motor cable 622.

  The shape of the frame 611 is a substantially cylindrical shape with an open end on the load side closed. An anti-load side bracket 621 is provided on the anti-load side of the frame 611. The frame 611 and the anti-load side bracket 621 constitute a motor housing. A motor side coolant passage 612 is formed inside the frame 611. As shown in FIG. 2, the motor side coolant passage 612 is formed in a zigzag shape over the outer periphery of the frame 611. As shown in FIGS. 2 and 5, one end and the other end of the motor-side cooling liquid path 612 are provided on the outer surface of the frame 611 in contact with the outside of the motor 4. A piping member 613 is provided at one end of the motor side cooling liquid passage 612, and a piping member 614 is provided at the other end of the motor side cooling liquid passage 612. The piping member 613 is provided with a hose 72 connected to the radiator 1 shown in FIG. The piping member 614 is provided with a hose 73 connected to a winding switch side cooling liquid path 57 of the winding switch 5 described later.

  The stator 615 includes a winding 615a having a circuit configuration disclosed in, for example, Japanese Patent Application Laid-Open No. 2003-111492. Winding 615 a is provided on the stator core of stator 615. The stator 615 is fixed to the inner surface of the frame 611. The rotor 616 has a substantially cylindrical shape. The outer periphery side of the rotor 616 is surrounded by the stator 615, and the inner periphery of the rotor 616 is provided on the outer periphery of the shaft 619. The rotor 616 is rotated by a magnetic field generated by the winding 615a. The shaft 619 is rotatably supported by the bearings 617 and 618 with respect to the frame 611 and the anti-load side bracket 621. A resolver 620 is provided on the opposite side of the shaft 619. Two motor cables 622 are provided as shown in FIGS. 2 and 4, one end is connected to the winding 615a, and the other end is connected to the inverter 3 shown in FIG.

  2 to 5, the winding switch 5 is provided on the outer surface of the motor body 6 on the side opposite to the load, and includes a first housing member 51, a second housing member 52, piping members 53 and 54, and a heat generating component. 55, a cover 56, and a signal line terminal 58.

  The second housing member 52 is provided on the anti-load side of the anti-load side bracket 621. The first housing member 51 is provided on the anti-load side of the second housing member 52. The first casing member 51 and the second casing member 52 constitute a winding switching casing. As shown in FIG. 3, a first inner surface recess 51 a is formed on the load-side surface 51 c of the first housing member 51. A hole 51d extending to the piping members 53 and 54 is formed in the inner wall of the first inner surface recess 51a. Although not shown in FIG. 3, a second inner surface recess 52 a having the same shape as the first inner surface recess 51 a is also formed on the surface 52 c on the anti-load side of the second housing member 52. As shown in FIG. 5, the first inner surface recess 51a, the hole 51d, and the second inner surface recess 52a are used in the winding switching housing formed by combining the first housing member 51 and the second housing member 52. Inside the winding switching device side cooling liquid path 57 is formed. In FIG. 5, the cross section of the wall 51e shown in FIG. 3 and the cross section of the wall on the second housing member 52 side corresponding to the wall 51e are not shown for easy understanding. As shown in FIGS. 3 and 5, one end and the other end of the winding switching device side cooling liquid passage 57 are provided on the outer surface of the first housing member 51 in contact with the outside of the motor 4. A piping member 53 is provided at one end of the winding switching device side cooling liquid passage 57, and a piping member 54 is provided at the other end of the winding switching device side cooling liquid passage 57. The pipe member 53 is provided with a hose 71 connected to the third coolant path of the inverter 3 shown in FIG. The pipe member 54 is provided with a hose 73 connected to the other end of the motor-side coolant path 612 of the motor body 6.

  As shown in FIGS. 3 and 5, a first outer surface recess 51 b is formed on the surface opposite to the load side of the first casing member 51, and a second side recess is formed on the load side surface of the second casing member 52. An outer surface recess 52b is formed. A heat generating component 55 such as a bipolar transistor or a semiconductor switching element such as an IGBT used for switching the winding 615a is in close contact with each of the first outer surface recess 51b and the second outer surface recess 52b. A cover 56 that covers the first outer surface recess 51 b is provided on the surface of the first housing member 51 on the side opposite to the load. The first housing member 51 is provided with a signal line terminal 58 for inputting a control signal from the inverter 3.

  Next, the flow of the coolant C in the motor 4 configured as described above will be described with reference to FIG. The coolant C that has flowed through the third coolant path of the inverter 3 flows through the coil switch-side coolant path 57 of the coil switch 5 via the hose 71 and the piping member 53. As a result, the heat generating component 55 is cooled, and the ambient temperature in the winding switch 5 is also kept low. The coolant C that has flowed through the winding switch-side coolant passage 57 flows through the motor-side coolant passage 612 of the motor body 6 via the piping member 54, the hose 73, and the piping member 614. Thereby, the winding 615a is cooled via the frame 611. The coolant C that has flowed through the motor-side coolant channel 612 flows out to the radiator 1 through the piping member 613 and the hose 72.

  As described above, in this embodiment, the motor body 6 and the winding switch 5 are cooled by the coolant C. For this reason, the motor main-body part 6 and the winding switch 5 can be cooled more efficiently than before.

  In the present embodiment, the winding switch 5 is provided on the outer surface of the motor body 6 on the side opposite to the load. The load side of the motor body 6 is often attached to a vehicle chassis or the like. For this reason, by providing the winding switch 5 on the outer surface of the motor main body 6 on the side opposite to the load, it is easy to perform maintenance and inspection of the winding switch 5 by opening the cover 56.

  Further, in the present embodiment, the coolant C flows through the winding switching device side cooling fluid passage 57 of the winding switching device 5 and then flows through the motor side cooling fluid passage 612 of the motor body 6. In general, the maximum temperature of the winding 615 a of the motor body 6 is higher than the maximum temperature of the heat generating component 55 of the winding switch 5. For this reason, the temperature rise of the coolant C is lowered by flowing the coolant C first through the winding switching device side coolant channel 57 as compared with the case where the coolant C is first flowed through the motor side coolant channel 612. Can be suppressed. As a result, the heat generating component 55 of the winding switch 5 can be cooled more efficiently.

  In the above description, the winding switch 5 is provided on the outer surface of the motor body 6 on the side opposite to the load. However, the present invention is not limited to this. The winding switch 5 may be provided on the outer surface of the motor main body 6 on the load side or on the outer peripheral surface of the motor main body 6.

  In the above description, the motor casing is configured by the frame 611 and the anti-load side bracket 621, but the present invention is not limited to this. For example, a housing in which the frame 611 and the anti-load side bracket 621 are integrated may be used as the motor housing. Further, for example, the frame 611 has a substantially cylindrical shape with the load side opened, and a load side bracket is further provided on the load side of the frame 611. The motor housing may be constituted by the load side bracket, the frame 611, and the anti-load side bracket 621.

  In the above description, the coolant C has flowed through the motor-side coolant channel 612 of the motor body 6 after flowing into the coil-switcher-side coolant channel 57 of the coil-switching device 5, but is not limited thereto. Not. When the motor main body 6 is used in a range in which the temperature of the winding 615a does not become higher than the temperature of the heat generating component of the winding switch 5, the coolant C may flow first to the motor side coolant channel 612. . Thereby, the coil | winding 615a of the motor main-body part 6 can be cooled more efficiently.

  With reference to FIG. 6, the structure of the motor which concerns on Example 2 of this invention is demonstrated. FIG. 6 is a cross-sectional view of a motor according to Embodiment 2 of the present invention. O in FIG. 6 indicates the rotation axis of the shaft 619. In FIG. 6, the same components as those in the first embodiment shown in FIG. The cooling system according to the present embodiment is the same as the cooling system according to the first embodiment shown in FIG. 1, and the description thereof is omitted here. The motor according to the present embodiment is different from the motor 4 according to the first embodiment in that all of the heat generating component 55 and other components of the winding switch 5 are anti-motor body portion 6 of the winding switch-side cooling liquid passage 57. The only difference is that the other end of the winding switch side cooling liquid path 57 of the winding switch 5 is directly coupled to the other end of the motor side cooling liquid path 612 of the motor body 6. Hereinafter, different points will be mainly described.

  In FIG. 6, the motor 4a according to the present embodiment includes a winding switch 5a and a motor body 6a. The motor body 6 a includes a frame 611, a piping member 613, a stator 615, a rotor 616, bearings 617 and 618, a shaft 619, a resolver 620, an anti-load side bracket 621, and a motor cable 622.

  A hole 621 a is formed in the non-load side bracket 621. The hole 621 a constitutes a part of the motor side cooling liquid passage 612 formed in the frame 611. One end of the motor-side coolant path 612 is provided on the outer surface of the frame 611 that contacts the outside of the motor 4a. A piping member 613 is provided at one end of the motor-side cooling liquid passage 612, and the piping member 613 is provided with a hose 72 connected to the radiator 1 shown in FIG. The other end of the motor side cooling liquid path 612 is provided on the outer surface of the anti-load side bracket 621 in contact with the winding switching unit 5a, and the other end of the winding switching unit side cooling liquid path 57 of the winding switching unit 5a described later. Directly coupled.

  In FIG. 6, the winding switch 5a is provided on the outer surface of the motor body 6a on the side opposite to the load, and includes a first housing member 51, a second housing member 521, a piping member 53, a heat generating component 55, a cover 56, A signal line terminal 58 is provided.

  The second housing member 521 is a plate-like member having a hole 521 a and is provided on the anti-load side of the anti-load side bracket 621. The first housing member 51 is provided on the anti-load side of the second housing member 521. The first casing member 51 and the second casing member 521 constitute a winding switching casing. A first inner surface recess 51 a is formed on the load-side surface of the first housing member 51. A hole 51d extending to the piping member 53 and a hole 51f extending to the hole 521a of the second housing member 521 are formed on the inner wall of the first inner surface recess 51a. In such a winding switching casing formed by combining the first casing member 51 and the second casing member 521 by the first inner surface recess 51a, the hole 51d, the hole 51f, and the hole 521a, a winding switcher is provided. A side cooling liquid passage 57 is formed. One end of the winding switch-side coolant path 57 is provided on the outer surface of the first casing member 51 that contacts the outside of the motor 4a. A pipe member 53 is provided at one end of the winding switch side cooling liquid path 57, and a hose 71 connected to the third cooling liquid path of the inverter 3 shown in FIG. 1 is provided in the pipe member 53. . The other end of the winding switch-side cooling liquid path 57 is provided on the outer surface of the second housing member 521 that contacts the anti-load side bracket 621 of the motor main body 6 and the motor-side cooling liquid path 612 of the motor main body 6a. Directly coupled to the other end. The first outer surface recess 51b of the first casing member 51 is in close contact with the heat generating component 55 and other components of the winding switch 5a.

  Next, the flow of the coolant C in the motor 4a configured as described above will be described with reference to FIG. The coolant C that has flowed through the third coolant path of the inverter 3 flows through the winding switching device side cooling fluid path 57 of the winding switching device 5 a via the hose 71 and the piping member 53. As a result, the heat generating component 55 is cooled, and the ambient temperature in the winding switch 5a is also kept low. The coolant C that has flowed through the winding switch-side coolant channel 57 flows through the motor-side coolant channel 612 of the motor body 6 without going through a hose or a piping member. Thereby, the winding 615a is cooled via the frame 611. The coolant C that has flowed through the motor-side coolant channel 612 flows out to the radiator 1 through the piping member 613 and the hose 72.

  As described above, in the present embodiment, all of the heat generating component 55 and other components of the winding switch 5a are provided on the side opposite to the motor main body 6a of the winding switch-side cooling liquid path 57. For this reason, the heat transmitted from the motor body 6a to the components of the winding switch 5a is blocked by the winding switch-side cooling fluid path 57, and the motor body received by the components of the winding switch 5a. The influence of heat from 6a can be reduced. Furthermore, the structure of the second housing member 521 can be simplified compared to the second housing member 52 in the first embodiment, and the winding switch 5a can be downsized.

  Further, in this embodiment, the other end of the winding switching device side cooling liquid path 57 of the winding switching device 5 a is directly coupled to the other end of the motor side cooling liquid path 612 of the motor body 6. For this reason, the piping members 614 and 54 and the hose 73 shown in the first embodiment can be reduced, and the cost and weight can be reduced.

  In the above description, the structure in which all of the heat generating component 55 and other components of the winding switching device 5a are provided on the side opposite to the motor main body 6a of the winding switching device side cooling liquid path 57, and the winding switching device 5a. Although the structure in which the other end of the winding switch side cooling liquid path 57 is directly coupled to the other end of the motor side cooling liquid path 612 of the motor body 6a is applied together, only one of the structures is applied. Also good.

  With reference to FIG. 7, an example of the cooling system which concerns on Example 3 of this invention is demonstrated. FIG. 7 is a diagram illustrating an example of a cooling system according to Embodiment 3 of the present invention. In FIG. 7, the same components as those in the first embodiment shown in FIG. The cooling system according to the present embodiment is different from the cooling system according to the first embodiment in that the coolant C is allowed to flow in parallel to the winding switch 5 and the motor main body 6. Hereinafter, different points will be mainly described.

  In FIG. 7, the cooling system is mounted on a vehicle and includes a radiator 1, a pump 2, an inverter 3, and a motor 4b. The motor 4b includes a winding switch 5b and a motor main body 6b. The motor main body 6b has a winding and a motor-side coolant path for cooling the winding. The winding switch 5b includes a heat generating component used for switching the winding of the motor main body 6b and a winding switch-side cooling liquid path for cooling the heat generating component. The winding switch 5b is provided on the outer surface of the motor body 6b on the side opposite to the load. As the circuit configuration of the winding of the motor main body 6b, the circuit configuration of the winding switch 5b, and the control method of the inverter 3, for example, the one disclosed in Japanese Patent Application Laid-Open No. 2003-111492 is used. The detailed explanation is omitted.

  In FIG. 7, the coolant C cooled by the radiator 1 flows through the third coolant path of the inverter 3 via the pump 2 to cool the heat generating components of the inverter 3. The coolant C that has flowed through the third coolant path flows in parallel through the coil switcher-side coolant path of the coil switcher 5b and the motor-side coolant path of the motor body 6b. The heating parts and the windings of the motor body 6b are cooled. The coolant C that has flowed through the motor side coolant path and the winding switch side coolant path again flows into the radiator 1 and is cooled by the radiator 1. The coolant C cooled by the radiator 1 again flows through the third coolant path of the inverter 3 via the pump 2. Through such a path, the coolant C circulates in the cooling system and cools the heat generating components and the windings.

  Next, a specific configuration of the motor 4b according to the present embodiment will be described with reference to FIG. FIG. 8 is a cross-sectional view of the motor 4b according to the present embodiment. O in FIG. 8 indicates the rotation axis of the shaft 619. In FIG. 8, the same components as those in the first embodiment shown in FIG. The motor 4b according to the present embodiment branches the winding switch side cooling liquid path 57 inside the winding switch 5 from the motor 4 according to the first embodiment, and the branched winding switch side cooling liquid. The difference is that the path 57 and the motor side cooling liquid path 612 of the motor body 6 are combined. Hereinafter, different points will be mainly described.

  In FIG. 8, the motor body 6 b includes a frame 611, a piping member 614, a stator 615, a rotor 616, bearings 617 and 618, a shaft 619, a resolver 620, a non-load side bracket 621, and a motor cable 622.

  A hole 621 b is formed in the non-load side bracket 621. The hole 621 b constitutes a part of the motor side cooling liquid path 612 formed inside the frame 611. One end of the motor-side cooling liquid path 612 is provided on the outer surface of the anti-load side bracket 621 in contact with the winding switching unit 5b, and a branch end of the winding switching unit-side cooling liquid path 57 of the winding switching unit 5b described later. Combined. The other end of the motor-side coolant path 612 is provided on the outer surface of the frame 611 that contacts the outside of the motor 4b. A piping member 614 is provided at the other end of the motor-side cooling liquid passage 612, and the piping member 614 is provided with a hose 75 connected to the radiator 1 shown in FIG.

  In FIG. 8, the winding switch 5b is provided on the outer surface of the motor body 6b on the side opposite to the load, and includes a first housing member 51, a second housing member 52, piping members 53 and 54, a heat generating component 55, a cover. 56 and a signal line terminal 58.

  The second casing member 52 is formed with a hole 52g that is coupled to one end of the motor-side coolant path 612 of the motor body 6b. A hole 51d extending to the piping members 53 and 54 is formed in the inner wall of the first inner surface recess 51a. A branch 51 g is further formed in the hole 51 d extending in the piping member 53. A branch end branched from the hole 51d by the branch portion 51g is coupled to the hole 52g of the second housing member 52. The first inner surface recess 51a, the hole 51d, the hole 52g, and the second inner surface recess 52a branch into the winding switching housing formed by combining the first housing member 51 and the second housing member 52. The winding switch side cooling liquid path 57 branched by the part 51g is formed. A first end that is one end of the winding switch-side coolant passage 57 and a second end that is the other end are provided on the outer surface of the first casing member 51 that contacts the outside of the motor 4b. A piping member 53 is provided at the first end of the winding switch side cooling liquid path 57, and a piping member 54 is provided at the second end of the winding switch side cooling liquid path 57. The pipe member 53 is provided with a hose 71 connected to the third coolant path of the inverter 3 shown in FIG. The piping member 54 is provided with a hose 74 connected to the radiator 1 shown in FIG. The third end of the winding switching device side cooling fluid path 57 that is a branching end branched by the branching portion 51g is provided on the outer surface of the second casing member 52 that is in contact with the outer surface of the anti-load side bracket 621, and the motor side cooling fluid. Coupled to one end of path 612.

  Next, the flow of the coolant C in the motor 4b configured as described above will be described with reference to FIG. The coolant C that has flowed through the third coolant path of the inverter 3 flows through the winding switcher-side coolant path 57 of the coil switcher 5b via the hose 71 and the piping member 53, and at the same time, the motor body 6b. It also flows to the motor side coolant passage 612. As a result, the heat generating component 55 of the winding switch 5b and the winding 615a of the motor body 6b are cooled. The coolant C that has flowed through the winding switching device side coolant channel 57 flows out to the radiator 1 through the piping member 54 and the hose 74. The coolant C that has flowed through the motor-side coolant channel 612 flows out to the radiator 1 through the piping member 614 and the hose 75.

  As described above, in this embodiment, the coolant C is allowed to flow in parallel to the winding switch 5b and the motor body 6b. For this reason, the temperature rise of the coolant C by the winding switch 5b does not affect the motor body 6b as in the first embodiment, and the temperature rise of the coolant C by the motor body 6b is also the winding switch 5b. Will not be affected. As a result, the motor body 6b and the winding switch 5b can be cooled more efficiently.

  Further, in this embodiment, the winding switching device side cooling liquid passage 57 is branched inside the winding switching device 5b, and the branched winding switching device side cooling liquid passage 57 and the motor side cooling liquid of the motor main body 6b are branched. The path 612 is coupled. For this reason, the piping member 613 shown in Example 1 can be reduced, and cost reduction and weight reduction can be achieved.

  In the above description, the coolant C flows from the hose 71 and flows out from the hoses 74 and 75. However, the present invention is not limited to this. The coolant C may flow in from the hoses 74 and 75 and flow out from the hose 71. In this case, the hoses 74 and 75 are connected to the third coolant path of the inverter 3 shown in FIG. 7, and the hose 71 is connected to the radiator 1.

  In the above description, as in the first embodiment, the heat generating component 55 of the winding switch 5b is provided in each of the first outer surface recess 51b and the second outer surface recess 52b. However, the present invention is not limited to this. As in the second embodiment, all of the heat generating component 55 and other components of the winding switch 5b are disposed only on the side opposite to the motor main body 6b of the winding switch-side cooling liquid passage 57 (only on the first outer surface recess 51b). The provided structure may be applied to the motor 4b according to the present embodiment.

  With reference to FIG. 9, the structure of the motor which concerns on Example 4 of this invention is demonstrated. FIG. 9 is a cross-sectional view of the motor according to the fourth embodiment. O in FIG. 9 indicates the rotation axis of the shaft 619. In FIG. 9, the same components as those of the first embodiment shown in FIG. The cooling system according to the present embodiment, like the cooling system according to the third embodiment shown in FIG. 7, flows the coolant C in parallel to the winding switch and the motor main body, and the description thereof is omitted here. . The motor according to the present embodiment branches the motor-side cooling liquid path 612 inside the motor body 6 with respect to the motor 4 according to the first embodiment, and the branched motor-side cooling liquid path 612 and the winding switch 5. Are different from each other in that the winding switch side cooling liquid passage 57 is coupled. Hereinafter, different points will be mainly described.

  In FIG. 9, the motor 4c includes a winding switch 5c and a motor main body 6c. The motor body 6 c includes a frame 611, piping members 613 and 614, a stator 615, a rotor 616, bearings 617 and 618, a shaft 619, a resolver 620, an anti-load side bracket 621, and a motor cable 622.

  A first end that is one end of the motor-side coolant passage 612 and a second end that is the other end are provided on the outer surface of the frame 611 that contacts the outside of the motor 4c. A piping member 613 is provided at the first end of the motor-side cooling liquid passage 612, and the piping member 613 is provided with a hose 72 connected to the third cooling liquid passage of the inverter 3 shown in FIG. A pipe member 614 is provided at the second end of the motor-side coolant path 612, and the hose 75 connected to the radiator 1 shown in FIG. A branch portion 611 a is formed in the motor-side coolant path 612 inside the frame 611. A branch end branched by the branch portion 611a is coupled to a hole 621c formed in the anti-load side bracket 621. The hole 621c constitutes a part of the motor-side cooling fluid path 612, and the third end, which is the branching end of the motor-side cooling liquid path 612 branched by the branching portion 611a, is in contact with the outer surface of the second housing member 52. Provided on the outer surface of the load side bracket 621.

  In FIG. 9, the winding switch 5c is provided on the outer surface of the motor body 6c on the side opposite to the load, and includes a first housing member 51, a second housing member 52, a piping member 53, a heat generating component 55, a cover 56, A signal line terminal 58 is provided.

  The second housing member 52 is formed with a hole 52h that is coupled to the third end of the motor-side coolant path 612 of the motor body 6c. A hole 51 d extending to the piping member 53 and a hole 51 h extending to the hole 52 h of the second housing member 52 are formed on the inner wall of the first inner surface recess 51 a. The inside of the winding switching housing formed by combining the first housing member 51 and the second housing member 52 with the first inner surface recess 51a, the hole 51d, the hole 51h, the hole 52h, and the second inner surface recess 52a. In addition, the winding switching device side cooling liquid passage 57 is formed. One end of the winding switch-side coolant path 57 is provided on the outer surface of the first casing member 51 that contacts the outside of the motor 4c. A pipe member 53 is provided at one end of the winding switch side cooling liquid path 57, and a hose 71 connected to the third cooling liquid path of the inverter 3 shown in FIG. . The other end of the winding switching device side cooling liquid path 57 is provided on the outer surface of the second casing member 52 in contact with the outer surface of the anti-load side bracket 621, and is coupled to the third end of the motor side cooling liquid path 612.

  Next, the flow of the coolant C in the motor 4c configured as described above will be described with reference to FIG. The coolant C that has flowed through the third coolant path of the inverter 3 flows through the winding switching device side coolant coolant path 57 of the winding switch 5c via the hose 71 and the piping member 53, and at the same time, the hose 72 and the piping member. It also flows through the motor-side cooling liquid passage 612 of the motor main body 6 c via 613. As a result, the heat generating component 55 of the winding switch 5c and the winding 615a of the motor body 6c are cooled. The coolant C that flows through the winding switch-side coolant channel 57 and the coolant C that flows through the motor-side coolant channel 612 flow out to the radiator 1 via the piping member 614 and the hose 75.

  As described above, in this embodiment, the coolant C is allowed to flow in parallel to the winding switch 5c and the motor main body 6c. For this reason, the temperature rise of the coolant C by the winding switch 5c does not affect the motor body 6c as in the first embodiment, and the temperature rise of the coolant C by the motor body 6c is also the winding switch 5c. Will not be affected. As a result, the motor body 6c and the winding switch 5c can be cooled more efficiently.

  Further, in this embodiment, the motor side cooling liquid path 612 is branched inside the motor body 6c, and the branched motor side cooling liquid path 612 and the winding switching side cooling liquid path 57 of the winding switching unit 5c Are combined. For this reason, the piping member 54 shown in Example 1 can be reduced, and cost reduction and weight reduction can be achieved.

  In the above description, the coolant C flows from the hose 71 and the hose 72 and flows out from the hose 75, but the present invention is not limited to this. The coolant C may flow from the hose 75 and flow out from the hose 71 and the hose 72. In this case, hose 75 is connected to the third coolant path of inverter 3 shown in FIG. 7, and hoses 71 and 72 are connected to radiator 1.

  In the above description, as in the first embodiment, the heat generating component 55 of the winding switching unit 5c is provided in each of the first outer surface recess 51b and the second outer surface recess 52b. However, the present invention is not limited to this. As in the second embodiment, all of the heat generating component 55 and other components of the winding switch 5c are disposed only on the side opposite to the motor body 6c of the winding switch-side cooling fluid passage 57 (only on the first outer surface recess 51b). The provided structure may be applied to the motor 4c according to the present embodiment.

  With reference to FIG. 10, the structure of the motor according to the fifth embodiment of the present invention will be described. FIG. 10 is a cross-sectional view of the motor according to the fifth embodiment. O in FIG. 10 indicates the rotation axis of the shaft 619. In FIG. 10, the same components as those in the first embodiment shown in FIG. The cooling system according to the present embodiment, like the cooling system according to the third embodiment shown in FIG. 7, flows the coolant C in parallel to the winding switch and the motor main body, and the description thereof is omitted here. . The motor according to the present embodiment is different from the motor 4 according to the first embodiment in the other end of the motor side cooling liquid path 612 of the motor body 6 and the other side of the winding switching side cooling liquid path 57 of the winding switching unit 5. The difference is that the ends are not connected. Hereinafter, different points will be mainly described.

  In FIG. 10, the motor 4d includes a winding switch 5d and a motor body 6d. The motor body 6 d includes a frame 611, piping members 613 and 614, a stator 615, a rotor 616, bearings 617 and 618, a shaft 619, a resolver 620, an anti-load side bracket 621, and a motor cable 622.

  One end and the other end of the motor-side coolant path 612 are provided on the outer surface of the frame 611 in contact with the outside of the motor 4d. A piping member 613 is provided at one end of the motor side cooling liquid passage 612, and a piping member 614 is provided at the other end of the motor side cooling liquid passage 612. The piping member 613 is provided with a hose 72 connected to the third coolant path of the inverter 3 shown in FIG. 7, and the piping member 614 is provided with a hose 75 connected to the radiator 1 shown in FIG. It is done.

  In FIG. 10, the winding switch 5d is provided on the outer surface of the motor body 6d on the side opposite to the load, and includes a first housing member 51, a second housing member 52, piping members 53 and 54, a heat generating component 55, a cover. 56 and a signal line terminal 58.

  One end and the other end of the winding switch-side cooling liquid passage 57 are provided on the outer surface of the first housing member 51 in contact with the outside of the motor 4d. A pipe member 53 is provided at one end of the winding switch side cooling liquid passage 57, and a pipe member 54 is provided at the other end. The piping member 53 is provided with a hose 71 connected to the third coolant path of the inverter 3 shown in FIG. 7, and the piping member 54 is provided with a hose 74 connected to the radiator 1 shown in FIG. It is done.

  Next, the flow of the coolant C in the motor 4d configured as described above will be described with reference to FIG. The coolant C that has flowed through the third coolant path of the inverter 3 flows through the winding switching device side cooling fluid path 57 of the winding switch 5d via the hose 71 and the piping member 53, and at the same time, the hose 72 and the piping member. It also flows through the motor-side cooling liquid passage 612 of the motor main body 6d through 613. As a result, the heat generating component 55 of the winding switch 5d and the winding 615a of the motor body 6d are cooled. The coolant C that has flowed through the winding switching device side coolant channel 57 flows out to the radiator 1 through the piping member 54 and the hose 74. The coolant C that has flowed through the motor-side coolant channel 612 flows out to the radiator 1 through the piping member 614 and the hose 75.

  As described above, in the present embodiment, the coolant C is allowed to flow in parallel to the winding switch 5d and the motor main body 6d. For this reason, the temperature rise of the coolant C by the winding switch 5d does not affect the motor body 6d as in the first embodiment, and the temperature rise of the coolant C by the motor body 6d is also affected by the winding switch 5d. Will not be affected. As a result, the motor main body 6d and the winding switch 5d can be cooled more efficiently.

  In the above description, the coolant C flows from the hose 71 and the hose 72 and flows out from the hoses 74 and 75, but the present invention is not limited to this. The coolant C may flow from the hoses 74 and 75 and flow out from the hose 71 and the hose 72. In this case, hoses 74 and 75 are connected to the third coolant path of inverter 3 shown in FIG. 7, and hoses 71 and 72 are connected to radiator 1.

  In the above description, as in the first embodiment, the heat generating component 55 of the winding switch 5d is provided in each of the first outer surface recess 51b and the second outer surface recess 52b. However, the present invention is not limited to this. As in the second embodiment, all of the heat generating component 55 and other components of the winding switch 5d are disposed only on the side opposite to the motor main body 6d of the winding switch-side cooling liquid passage 57 (only on the first outer surface recess 51b). The provided structure may be applied to the motor 4d according to the present embodiment.

  With reference to FIG. 11, an example of the cooling system which concerns on Example 6 of this invention is demonstrated. FIG. 11 is a diagram illustrating an example of a cooling system according to Embodiment 6 of the present invention. In FIG. 11, the same components as those in the first embodiment shown in FIG. The cooling system according to the present embodiment differs from the cooling system according to the first embodiment in that the coolant C flowing through the inverter 3 and the coolant C flowing through the motor 4 are separately cooled by the radiator 1. Hereinafter, different points will be mainly described.

  In FIG. 11, the cooling system is mounted on a vehicle and includes a radiator 1, pumps 2 and 8, an inverter 3, and a motor 4. The motor 4 is a motor according to the first embodiment, for example, and includes a winding switch 5 and a motor main body 6.

  In FIG. 11, a part of the cooling liquid C cooled by the radiator 1 passes through the pump 2 through the winding switching unit side cooling liquid path of the winding switching unit 5 and the motor side cooling liquid path of the motor body 6. The flow, the heat generating component of the winding switch 5 and the winding of the motor body 6 are each cooled. The coolant C that has flowed through the motor side coolant path and the winding switch side coolant path again flows into the radiator 1 and is cooled by the radiator 1. A part of the coolant C cooled by the radiator 1 again flows through the third coolant path of the inverter 3 via the pump 2. The other part of the cooling liquid C cooled by the radiator 1 flows through the third cooling liquid path of the inverter 3 via the pump 8 to cool the heat generating components of the inverter 3. The coolant C that has flowed through the third coolant channel again flows into the radiator 1 and is cooled by the radiator 1. The other part of the coolant C cooled by the radiator 1 flows through the third coolant path of the inverter 3 via the pump 8 again. Through such a path, the coolant C circulates in the cooling system and cools the heat generating components and the windings.

  As described above, in this embodiment, the coolant C flowing through the inverter 3 and the coolant C flowing through the motor 4 are separately cooled by the radiator 1. For this reason, it is not necessary to influence the temperature rise of the coolant C by the inverter 3 on the coolant C flowing through the winding switch 5 and the motor body 6. As a result, the winding switch 5 and the motor body 6 can be cooled more efficiently.

  In the above description, the case where the motor 4 according to the first embodiment is used as the motor, that is, the case where the motor side cooling liquid path 612 and the winding switch side cooling liquid path 57 are coupled in series has been described. However, the present invention is not limited to this. As shown in FIG. 12, the motor side cooling liquid path 612 of the motor 4b according to the third embodiment and the winding switch side cooling liquid path 57 may be coupled in parallel. FIG. 12 is a diagram illustrating another example of the cooling system according to the sixth embodiment.

  The embodiment of the present invention has been described above. However, it goes without saying that those skilled in the art can make appropriate modifications from this embodiment, and even if such modifications are made, they are also included in the technical scope of the present invention. deep.

1 Radiator 2, 8 Pump 3 Inverter 4, 4 a to 4 d, 92 Motor 5, 5 a to 5 d, 922 Winding switch 6, 6 a to 6 d, 921 Motor main body 611 Frame 612 Motor side coolant passage 53, 54, 613 , 614 Piping member 615 Stator 615a Winding 616 Rotor 617, 618 Bearing 619 Shaft 620 Resolver 621 Anti-load side bracket 622, 93 Motor cable 51 First housing member 52, 521 Second housing member 55 Heat generating component 56 Cover 57 Winding switch side cooling liquid path 58 Signal line terminals 71 to 75 Hose 91 Drive device 94 Signal line

Claims (13)

A winding switch provided on the anti-load side of the motor body, and for switching the winding of the motor body,
An exothermic part that includes a semiconductor switching element and includes a first casing member and a second casing member, and an outer surface side of the first casing member opposite to the second casing member and the second casing A winding switching housing attached to at least one of the outer surfaces of the member opposite to the first housing member;
By combining the first housing member and the second housing member, the inner surface of the first housing member on the second housing member side and the first housing member side of the second housing member A winding switch side cooling liquid path for cooling the heat-generating component formed between the inner surfaces of
A winding switch characterized by comprising:   The winding switch side cooling liquid path has a shape in which one end and the other end are arranged in the same direction side of the winding switching housing and are folded in a region corresponding to a region to which the heat generating component is attached. The winding switch according to claim 1, wherein:   The heat generating component is provided on each of the outer surface of the first housing member that is present on the motor housing side of the motor body and the outer surface of the second housing member that is on the opposite side of the motor housing side. The winding switch according to claim 1 or 2, wherein the winding switch is provided. The winding switching housing also includes other parts than the heat generating parts,
3. The heat generating component and the other components are all provided on the outer surface of the second casing member that is on the opposite side of the motor main body from the motor casing. Winding switch as described in. One end of the motor-side cooling liquid path provided in the motor casing of the motor main body is provided on the outer surface of the motor casing in contact with the outside of the motor,
One end of the winding switching device side cooling liquid path is provided on the outer surface of the winding switching housing in contact with the outside of the motor,
5. The winding switch according to claim 1, wherein the other end of the motor-side coolant path and the other end of the winding switch-side coolant path are coupled. The other end of the motor-side cooling liquid path is provided on the outer surface of the motor casing in contact with the winding switching casing,
The other end of the winding switching unit side cooling liquid path is provided on the outer surface of the winding switching casing in contact with the motor casing, and is connected to the other end of the motor side cooling liquid path. The winding switch according to claim 5.   The winding switch according to claim 5 or 6, wherein the coolant flows in from one end of the winding switch side cooling liquid path and flows out from one end of the motor side cooling liquid path. .   The winding switch according to claim 5 or 6, wherein the coolant flows in from one end of the motor side coolant path and flows out from one end of the winding switch side coolant path. . A winding switch provided on the anti-load side of the motor body, and for switching the winding of the motor body,
A winding switching housing in which a heat generating component including a semiconductor switching element is attached to at least one side of both sides in the axial direction,
A winding switching device side cooling liquid path provided in the winding switching housing so as to cool the heat-generating component via the wall surface;
A signal line terminal for inputting a control signal from an inverter that is provided in a portion other than the wall surface of the winding switching housing and that controls the motor main body;
The winding switching device side cooling liquid path is branched inside the winding switching housing,
The first end and the second end of the winding switching unit side cooling liquid path are provided on the outer surface of the winding switching casing in contact with the outside of the motor,
The third end of the winding switch side cooling liquid path is provided on the outer surface of the winding switching casing in contact with the motor casing of the motor main body,
One end of the motor-side cooling liquid path provided in the motor casing is an outer surface of the motor casing in contact with the winding switching casing and is coupled to the third end of the winding switching-side cooling liquid path Provided in a position to
The other end of the motor-side coolant path is provided on the outer surface of the motor casing that contacts the outside of the motor. A winding switch provided on the anti-load side of the motor body, and for switching the winding of the motor body,
A winding switching housing in which a heat generating component including a semiconductor switching element is attached to at least one side of both sides in the axial direction,
A winding switching device side cooling liquid path provided in the winding switching housing so as to cool the heat-generating component via the wall surface;
A signal line terminal for inputting a control signal from an inverter that is provided in a portion other than the wall surface of the winding switching housing and that controls the motor main body;
The motor side coolant passage provided in the motor casing of the motor main body is branched inside the motor casing,
A first end and a second end of the motor-side cooling fluid path are provided on an outer surface of the motor casing in contact with the outside of the motor;
A third end of the motor-side cooling fluid path is provided on an outer surface of the motor casing in contact with the winding switching casing;
One end of the winding switching device side cooling liquid path is provided on the outer surface of the winding switching housing in contact with the outside of the motor,
The other end of the winding switching unit side cooling liquid path is provided on the outer surface of the winding switching casing in contact with the motor casing and at a position coupled to the third end of the motor side cooling liquid path. A winding switch featuring the features. One end and the other end of the motor-side cooling fluid path provided in the motor casing of the motor main body are provided on the outer surface of the motor casing of the motor main body in contact with the outside of the motor,
The one end and the other end of the winding switching unit side cooling liquid path are provided on an outer surface of the winding switching casing in contact with the outside of the motor. Winding switch as described in.   The winding switch according to any one of claims 1 to 11, wherein the winding switching casing is provided on an outer surface of the motor main body on the side opposite to the load of the motor casing. A motor comprising a motor main body having windings, and a winding switch provided on a non-load side of the motor main body to switch the winding of the motor main body;
A driving device for controlling the switching of the winding switch;
A vehicle comprising:
The winding switch is
An exothermic part that includes a semiconductor switching element and includes a first casing member and a second casing member, and an outer surface side of the first casing member opposite to the second casing member and the second casing A winding switching housing attached to at least one of the outer surfaces of the member opposite to the first housing member;
By combining the first housing member and the second housing member, the inner surface of the first housing member on the second housing member side and the first housing member side of the second housing member A winding switch side cooling liquid path for cooling the heat-generating component formed between the inner surfaces of
The vehicle characterized by having.

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