WO2021009859A1 - Motor device and egr valve device - Google Patents

Motor device and egr valve device Download PDF

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Publication number
WO2021009859A1
WO2021009859A1 PCT/JP2019/027993 JP2019027993W WO2021009859A1 WO 2021009859 A1 WO2021009859 A1 WO 2021009859A1 JP 2019027993 W JP2019027993 W JP 2019027993W WO 2021009859 A1 WO2021009859 A1 WO 2021009859A1
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WO
WIPO (PCT)
Prior art keywords
flow path
motor
motor device
cooling jacket
stator
Prior art date
Application number
PCT/JP2019/027993
Other languages
French (fr)
Japanese (ja)
Inventor
将貴 清水
祥子 川崎
綿貫　晴夫
裕也 西守
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2019/027993 priority Critical patent/WO2021009859A1/en
Priority to JP2021532611A priority patent/JP7098063B2/en
Publication of WO2021009859A1 publication Critical patent/WO2021009859A1/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/203—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium specially adapted for liquids, e.g. cooling jackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/30—Structural association with control circuits or drive circuits
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode

Definitions

  • the present invention relates to a motor device and an exhaust gas recirculation (hereinafter referred to as "EGR") valve device.
  • EGR exhaust gas recirculation
  • Patent Document 1 discloses a structure in which a motor is cooled by so-called "water cooling”.
  • substantially the entire motor (40) is housed in the housing (100).
  • the housing (100) includes a substantially cylindrical tubular flow path portion (20), a first lid portion (10) provided at one end of the tubular flow path portion (20), and a tubular flow path portion (20). It is composed of a second lid portion (30) provided at the other end of 20).
  • a plurality of partition walls are provided inside the tubular flow path portion (20), a plurality of outward flow paths and a plurality of return flows are provided inside the tubular flow path portion (20).
  • the road is formed.
  • the individual return flow paths and the corresponding forward flow paths are connected by a plurality of folded flow paths provided inside the first lid portion (10).
  • the individual forward flow paths and the corresponding return flow paths are connected by a plurality of folded flow paths provided inside the second lid portion (20).
  • substantially the entire motor (40) is cooled substantially uniformly by a complicated structure using a plurality of parts (10, 20, 30).
  • the amount of cooling required for the cooling structure for the motor may differ for each part of the motor depending on the internal structure of the motor.
  • the amount of cooling required for each part depends on the difference value ⁇ T between the heat resistant temperature T1 of the materials and electronic parts contained in each part and the operating environment temperature T2 of the device including the motor (for example, the EGR valve device). Can be different. Further, the amount of cooling required for each part may differ depending on the amount of heat generated at each part.
  • the difference value ⁇ T is less than 100 degrees (more specifically, 30 degrees), which is an abbreviation for the motor. It may not be necessary to have a substantially uniform cooling of the whole.
  • the conventional cooling structure since the conventional cooling structure is used, there is a problem that a complicated structure is used for unnecessary cooling. Due to such a complicated structure, there is a problem that the weight of the unit including the motor and the cooling structure is increased.
  • the present invention has been made to solve the above problems, and an object of the present invention is to realize cooling according to a required cooling amount by a structure simpler than that of a conventional cooling structure. ..
  • the motor device of the present invention includes a metal cooling jacket and a motor housed in the cooling jacket.
  • the cooling jacket has a flow path for a coolant, and the motor is molded by a resin. It has a stator and a substrate for control, and the flow path is provided at a portion corresponding to the arrangement position of the first flow path and the stator provided at the portion corresponding to the arrangement position of the substrate. It selectively includes at least one of the second flow paths provided.
  • FIG. It is a front view which shows the main part of another motor apparatus which concerns on Embodiment 1.
  • FIG. It is a rear view which shows the main part of another motor apparatus which concerns on Embodiment 1.
  • FIG. It is a left side view which shows the main part of another motor apparatus which concerns on Embodiment 1.
  • FIG. It is a right side view which shows the main part of another motor apparatus which concerns on Embodiment 1.
  • FIG. It is a bottom view which shows the main part of another motor device which concerns on Embodiment 1.
  • FIG. 4 is a cross-sectional view taken along the line AA'shown in FIGS. 4E and 4F. It is explanatory drawing which shows the cooling jacket and the motor in the other motor apparatus which concerns on Embodiment 1.
  • FIG. It is a front view which shows the main part of the motor device which concerns on Embodiment 2.
  • FIG. It is sectional drawing which follows the line BB'shown in FIG. It is a top view which shows the main part of the motor device which concerns on Embodiment 2.
  • It is a front view which shows the main part of the motor device which concerns on Embodiment 3.
  • FIG. 1 is a six-view view showing a main part of the motor device according to the first embodiment.
  • FIG. 2 is a cross-sectional view taken along the line AA'shown in FIG.
  • FIG. 3 is an explanatory view showing a cooling jacket and a motor in the motor device according to the first embodiment.
  • the motor device according to the first embodiment will be described with reference to FIGS. 1 to 3.
  • FIG. 4 is a six-view view showing a main part of another motor device according to the first embodiment.
  • FIG. 5 is a cross-sectional view taken along the line AA'shown in FIG.
  • FIG. 6 is an explanatory view showing a cooling jacket and a motor in another motor device according to the first embodiment.
  • the other motor device according to the first embodiment will be described with reference to FIGS. 4 to 6.
  • 1 is a coil.
  • the coil 1 is molded with the resin 2.
  • the main part of the stator 3 is composed of the coil 1 and the resin 2.
  • the stator 3 has a substantially square columnar outer shape, and has a substantially columnar hollow portion 4.
  • a rotor 5 is provided in the hollow portion 4.
  • the rotor 5 is composed of a permanent magnet.
  • the rotor 5 is rotatably provided with respect to the stator 3.
  • Torque is generated by supplying an electric current to the coil 1.
  • the direction of the generated torque is a direction corresponding to the direction of the supplied current. Further, the magnitude of the generated torque becomes a magnitude corresponding to the magnitude of the supplied current.
  • the rotor 5 is rotatably provided integrally with the shaft 6.
  • the tip of the shaft 6 projects from the bottom surface of the stator 3 to the outside of the stator 3.
  • the rotor 5 is rotatably provided integrally with the magnet 7.
  • the magnetism generated by the magnet 7 is detected by a plurality of magnetic sensors 9 provided on the control substrate 8. By detecting the generated magnetism, the rotational position of the rotor 5 is detected.
  • the detected rotation position is used for controlling the motor 100 by a circuit (not shown) provided on the substrate 8.
  • the substrate 8 is arranged so as to face the top surface portion of the stator 3.
  • the substrate 8 has a substantially rectangular shape. Therefore, the motor 100 has a substantially square columnar outer shape.
  • the motor 100 is housed in a metal cooling jacket (hereinafter referred to as "cooling jacket") 200.
  • the cooling jacket 200 is, for example, an integrally molded product made of aluminum. That is, the cooling jacket 200 is composed of one component.
  • the cooling jacket 200 has a substantially box shape. That is, the cooling jacket 200 has a substantially square columnar outer shape, and has a substantially square columnar recess 11. The shape of the recess 11 corresponds to the outer shape of the motor 100. The motor 100 is housed in the recess 11.
  • the entire top surface portion of the motor 100 that is, the portion including the substrate 8
  • most of the front portion of the motor 100 that is, the portion including the front portion of the stator 3
  • the back portion of the motor 100 that is, the stator 3
  • Most of the left side surface of the motor 100 that is, the part including the back surface of the stator 3
  • the right side surface of the motor 100 that is, the part including the right side surface of the stator 3.
  • Most of the above is arranged in the recess 11.
  • a residual portion on the front surface of the motor 100 a residual portion on the back surface of the motor 100, a residual portion on the left side surface of the motor 100, a residual portion on the right side surface of the motor 100, and a bottom surface portion of the motor 100 (that is, the bottom surface portion).
  • the entire bottom surface of the stator 3 and the tip of the shaft 6) project out of the recess 11 through the opening 12 of the recess 11.
  • the cooling jacket 200 has a shape along the top surface portion, the front surface portion, the back surface portion, the left side surface portion, and the right side surface portion of the motor 100.
  • the cooling jacket 200 has a flow path 13 for the coolant.
  • the flow path 13 is a flow path provided at a portion corresponding to the arrangement position of the substrate 8 (hereinafter referred to as “first flow path”) 13_1 and a flow path provided at a portion corresponding to the arrangement position of the stator 3. It selectively includes at least one of the roads (hereinafter referred to as "second flow paths”) 13_2.
  • FIGS. 1 to 3 show an example in which only the first flow path 13_1 of the first flow path 13_1 and the second flow path 13_2 is provided in the cooling jacket 200.
  • the first flow path 13_1 is composed of one substantially U-shaped hollow portion.
  • the first flow path 13_1 is provided along the side surface portion of the substrate 8.
  • the substrate 8 is arranged in the U-shape.
  • One end of the first flow path 13_1 (hereinafter referred to as "first end") 14_1 constitutes a coolant supply port. That is, the first end portion 14_1 can be freely connected to a hose (not shown) for supplying a coolant.
  • second end 15_1 constitutes a cooling liquid discharge port. That is, the second end portion 15_1 can be freely connected to a hose (not shown) for discharging the coolant. As a result, the coolant flows in the first flow path 13_1.
  • FIGS. 4 to 6 show an example in which only the second flow path 13_2 of the first flow path 13_1 and the second flow path 13_2 is provided in the cooling jacket 200.
  • the second flow path 13_2 is composed of one substantially U-shaped hollow portion.
  • the second flow path 13_2 is provided along the outer peripheral portion of the stator 3.
  • the stator 3 is arranged in the U-shape.
  • One end of the second flow path 13_2 (hereinafter referred to as “first end”) 14_2 constitutes a coolant supply port. That is, the first end portion 14_2 can be freely connected to a hose (not shown) for supplying a coolant.
  • second end portion 15_2 of the second flow path 13_2 constitutes a cooling liquid discharge port. That is, the second end portion 15_2 can be freely connected to a hose (not shown) for discharging the coolant. As a result, the coolant flows in the second flow path 13_2.
  • the main part of the motor device 300 is configured.
  • at least one of the first flow path 13_1 and the second flow path 13_2 may be selectively provided on the cooling jacket 200. Therefore, both the first flow path 13_1 and the second flow path 13_2 may be provided in the cooling jacket 200 (not shown).
  • the substrate 8 is larger than the cooling amount for other parts of the motor 100. Cooling with a cooling amount may be required. At this time, due to the structure in which only the first flow path 13_1 of the first flow path 13_1 and the second flow path 13_1 is provided in the cooling jacket 200 (see FIGS. 1 to 3), the inside of the first flow path 13_1 The substrate 8 can be cooled intensively by the cooling liquid flowing through the substrate 8. Further, the other parts of the motor 100 can be cooled with a cooling amount smaller than the cooling amount with respect to the substrate 8 due to the heat transfer property of the metal cooling jacket 200.
  • the calorific value in the coil 1 is larger than the calorific value in other parts of the motor 100. Therefore, it may be required to cool the stator 3 with a cooling amount larger than the cooling amount for other parts of the motor 100.
  • the inside of the second flow path 13_2 The stator 3 can be cooled intensively by the cooling liquid flowing through the stator 3. Further, the other parts of the motor 100 can be cooled with a cooling amount smaller than the cooling amount with respect to the stator 3 due to the heat transfer property of the metal cooling jacket 200.
  • the substrate 8 and the stator 3 are cooled to be larger than the amount of cooling to other parts of the motor 100. Cooling by volume may be required.
  • the substrate 8 and the stator 3 are separated by the coolant flowing in the flow path 13. It can be cooled intensively. Further, the other parts of the motor 100 can be cooled with a cooling amount smaller than the cooling amount for the substrate 8 and the stator 3 due to the heat transfer property of the metal cooling jacket 200.
  • the coil 1 is molded with the resin 2, the amount of heat conduction from the coil 1 to the cooling jacket 200 can be increased. As a result, the cooling capacity of the cooling jacket 200 for the coil 1 can be improved.
  • the cooling jacket 200 is composed of one component, and each of the first flow path 13_1 and the second flow path 23_2 is composed of one substantially U-shaped hollow portion. Therefore, the structure of the cooling jacket 200 is simpler than the structure of the housing in the conventional cooling structure. With such a simple structure, the weight of the motor device 300 can be reduced. As a result, when the motor device 300 is used for a device that generates intermittent vibration (for example, an EGR valve device), the force generated by such vibration can be reduced. Therefore, additional members and additional structures for improving seismic resistance, additional members and additional structures for improving strength, and the like can be eliminated.
  • intermittent vibration for example, an EGR valve device
  • the shape of the cooling jacket 200 is not limited to the shapes shown in FIGS. 1 to 3 or the shapes shown in FIGS. 4 to 6. That is, the shape of the cooling jacket 200 is not limited to the shape along the top surface portion, the front surface portion, the back surface portion, the left side surface portion, and the right side surface portion of the motor 100.
  • the shape of the cooling jacket 200 may be any shape that follows one or more selected surface portions of these surface portions.
  • the shape of the first flow path 13_1 may be substantially U-shaped and may not be completely U-shaped.
  • the shape of the second flow path 13_2 may be substantially U-shaped and may not be completely U-shaped.
  • the meaning of the term "U-shaped” described in the claims of the present application is not limited to a complete U-shaped shape, but includes a substantially U-shaped shape.
  • the shape of the first flow path 13_1 is not limited to a substantially U shape. As described above, the first flow path 13_1 may be provided at a portion of the cooling jacket 200 corresponding to the arrangement position of the substrate 8. Therefore, the shape of the first flow path 13_1 may be different depending on the shape of the cooling jacket 200.
  • the shape of the second flow path 13_2 is not limited to a substantially U shape. As described above, the second flow path 13_2 may be provided at a portion of the cooling jacket 200 corresponding to the arrangement position of the stator 3. Therefore, the shape of the second flow path 13_2 may be different depending on the shape of the cooling jacket 200.
  • the motor device 300 includes a metal cooling jacket 200 and a motor 100 housed in the cooling jacket 200, and the cooling jacket 200 is for a coolant.
  • the motor 100 has a stator 3 molded by the resin 2 and a control substrate 8, and the flow path 13 is located at a portion corresponding to the arrangement position of the substrate 8. It selectively includes at least one of the first flow path 13_1 provided and the second flow path 13_2 provided at the portion corresponding to the arrangement position of the stator 3.
  • it is possible to realize cooling according to the required cooling amount for each part of the motor 100. Further, such cooling can be realized by a structure simpler than the conventional cooling structure. As a result, the weight of the motor device 300 can be reduced.
  • the flow path 13 includes only the first flow path 13_1 of the first flow path 13_1 and the second flow path 13_2, and the first flow path 13_1 is composed of one U-shaped hollow portion.
  • the substrate 8 is arranged in the U-shape. Thereby, for example, the structures shown in FIGS. 1 to 3 can be realized. With such a structure, the substrate 8 can be cooled intensively.
  • the flow path 13 includes only the second flow path 13_2 of the first flow path 13_1 and the second flow path 13_2, and the second flow path 13_2 is composed of one U-shaped hollow portion.
  • the stator 3 is arranged in the U-shape. Thereby, for example, the structures shown in FIGS. 4 to 6 can be realized. With such a structure, the stator 3 can be cooled intensively.
  • the flow path 13 includes both the first flow path 13_1 and the second flow path 13_1, the first flow path 13_1 is composed of one U-shaped hollow portion, and the inside of the U-shape.
  • the substrate 8 is arranged in the U-shape
  • the second flow path 13_2 is formed by another U-shaped hollow portion
  • the stator 3 is arranged in the U-shape.
  • FIG. 7 is a front view showing a main part of the motor device according to the second embodiment.
  • FIG. 8 is a cross-sectional view taken along the line BB'shown in FIG.
  • FIG. 9 is a plan view showing a main part of the motor device according to the second embodiment.
  • FIG. 10 is a cross-sectional view taken along the line AA'shown in FIG.
  • the motor device according to the second embodiment will be described with reference to FIGS. 7 to 10.
  • FIGS. 7 to 10 the same components as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
  • a heat transfer material 21 is provided between the outer peripheral portion of the stator 3 and the inner peripheral portion of the cooling jacket 200. As shown in FIG. 8, the heat transfer material 21 is provided over the entire circumference of the outer peripheral portion of the stator 3.
  • the heat transfer material 21 is made of a material having high thermal conductivity. Specifically, for example, the heat transfer material 21 is composed of a metal spacer, a semi-solid resin sheet, or a liquid grease having a high viscosity.
  • the main part of the motor device 300a is configured.
  • the adhesion between the stator 3 and the cooling jacket 200 can be improved. Further, the amount of heat conduction from the stator 3 to the cooling jacket 200 can be increased. As a result, the cooling capacity of the cooling jacket 200 for the stator 3 can be improved.
  • the motor device 300a can employ various modifications similar to those described in the first embodiment.
  • the second flow path 13_2 may be provided in the cooling jacket 200.
  • the heat transfer material 21 is provided between the outer peripheral portion of the stator 3 and the inner peripheral portion of the cooling jacket 200. As a result, the amount of heat conduction from the stator 3 to the cooling jacket 200 can be increased.
  • FIG. 11 is a front view showing a main part of the motor device according to the third embodiment.
  • FIG. 12 is a cross-sectional view taken along the line BB'shown in FIG.
  • the motor device according to the third embodiment will be described with reference to FIGS. 11 and 12.
  • FIGS. 11 and 12 the same components as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
  • the outer peripheral portion of the stator 3a is substantially wavy, and the inner peripheral portion of the cooling jacket 200a is substantially wavy.
  • the shape of the inner peripheral portion of the cooling jacket 200a corresponds to the shape of the outer peripheral portion of the stator 3a.
  • the contact surface portion between the stator 3a and the cooling jacket 200a is substantially wavy.
  • the main part of the motor device 300b is configured.
  • the contact surface portion between the stator 3a and the cooling jacket 200a is substantially wavy, the contact area between the stator 3a and the cooling jacket 200a can be increased. As a result, the amount of heat conduction from the stator 3a to the cooling jacket 200a can be increased. As a result, the cooling capacity of the cooling jacket 200a for the stator 3a can be improved.
  • a heat transfer material may be provided between the outer peripheral portion of the stator 3a and the inner peripheral portion of the cooling jacket 200a. That is, the facing surface portion between the stator 3a and the cooling jacket 200a may be substantially wavy. As a result, the facing area between the stator 3a and the cooling jacket 200a can be increased. Further, the heat transfer material is the same as the heat transfer material 21 shown in FIGS. 8 and 10. By providing such a heat transfer material, the adhesion between the stator 3a and the cooling jacket 200a can be improved. Further, the amount of heat conduction from the stator 3a to the cooling jacket 200a can be increased. As a result, the cooling capacity of the cooling jacket 200a for the stator 3a can be improved.
  • the motor device 300b various modifications similar to those described in the first embodiment can be adopted.
  • the second flow path 13_2 may be provided in the cooling jacket 200a.
  • the shape of the outer peripheral portion of the stator 3a may be substantially wavy and may not be completely wavy.
  • the shape of the inner peripheral portion of the cooling jacket 200a may be substantially wavy and may not be completely wavy.
  • the meaning of the term "wavy" described in the claims of the present application is not limited to perfect wavy, but includes substantially wavy.
  • the outer peripheral portion of the stator 3a is wavy and the inner peripheral portion of the cooling jacket 200a is wavy. As a result, the amount of heat conduction from the stator 3a to the cooling jacket 200a can be increased.
  • FIG. 13 is a six-view view showing a main part of the motor device according to the fourth embodiment. A main part of the motor device according to the fourth embodiment will be described with reference to FIG. In FIG. 13, the same components as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
  • a plurality of substantially plate-shaped convex portions (hereinafter referred to as “ribs”) 31 are provided on the surface portion of the cooling jacket 200b. More specifically, a plurality of (for example, 6) ribs 31_1 are provided on the front surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_2 are provided on the back surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_3 are provided on the left side surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_4 are provided on the right side surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_5 are provided on the top surface of the cooling jacket 200b.
  • ribs 31_1 are provided on the front surface of the cooling jacket 200b.
  • a plurality of (for example, 6) ribs 31_2 are provided on the back surface of the cooling jacket 200b
  • the surface area of the cooling jacket 200b can be increased by providing the plurality of ribs 31. As a result, the heat dissipation capacity of the cooling jacket 200b with respect to the external space can be improved. As a result, the cooling capacity of the cooling jacket 200b for the motor 100 can be improved.
  • the surface portion on which the rib 31 is provided is not limited to the front portion, the back portion, the left side surface portion, the right side surface portion, and the top surface portion of the cooling jacket 200b. Further, the number of ribs 31 provided on each surface portion is not limited to six. That is, one or more ribs 31 may be provided on each of one or more selected face portions of the front portion, the back portion, the left side surface portion, the right side surface portion, and the top surface portion of the cooling jacket 200b. Just do it. However, from the viewpoint of improving the heat dissipation capacity of the cooling jacket 200b, it is preferable that a plurality of ribs 31 are provided on each of the plurality of surface portions.
  • a heat transfer material (not shown) may be provided between the outer peripheral portion of the stator 3 and the inner peripheral portion of the cooling jacket 200b.
  • a heat transfer material is the same as the heat transfer material 21 shown in FIGS. 8 and 10.
  • stator 3a may be provided instead of the stator 3, and the inner peripheral portion of the cooling jacket 200b may be substantially wavy.
  • a heat transfer material (not shown) may be provided between the outer peripheral portion of the stator 3a and the inner peripheral portion of the cooling jacket 200b.
  • Such a heat transfer material is the same as the heat transfer material 21 shown in FIGS. 8 and 10.
  • the motor device 300c various modifications similar to those described in the first embodiment can be adopted.
  • the second flow path 13_2 may be provided in the cooling jacket 200b.
  • a plurality of ribs 31 are provided on the surface portion of the cooling jacket 200b. As a result, the heat dissipation capacity of the cooling jacket 200b with respect to the external space can be improved.
  • FIG. 14 is a front view showing a main part of the EGR valve device according to the fifth embodiment.
  • the EGR valve device according to the fifth embodiment will be described with reference to FIG.
  • the main part of the EGR valve device 600 is composed of the butterfly type EGR valve 400 and the rotary actuator 500.
  • the opening degree of the EGR valve 400 is controlled by the actuator 500.
  • Various known techniques can be used to control the opening degree of the EGR valve 400 by the actuator 500. Detailed description of these techniques will be omitted.
  • the actuator 500 uses the motor device 300 shown in FIGS. 1 to 3.
  • the motor device 300 by using the motor device 300, it is possible to realize cooling according to the required cooling amount for each part of the motor 100. Thereby, cooling according to the operating environment temperature T2 of the application of the motor device 300 (that is, the EGR valve device 600) can be realized. More specifically, it is possible to realize cooling according to the difference value ⁇ T between the heat resistant temperature T1 and the operating environment temperature T2 of the materials and electronic parts contained in the motor device 300.
  • the structure of the cooling jacket 200 is simpler than the structure of the housing in the conventional cooling structure. With such a simple structure, the weight of the motor device 300 can be reduced. As a result, when the motor device 300 is used for the device that generates intermittent vibration (that is, the EGR valve device 600), the force generated by such vibration can be reduced. Therefore, additional members and additional structures for improving seismic resistance, additional members and additional structures for improving strength, and the like can be eliminated.
  • the actuator 500 may use the motor device 300 shown in FIGS. 4 to 6 instead of the motor device 300 shown in FIGS. 1 to 3. Further, the actuator 500 may use a motor device 300a, a motor device 300b, or a motor device 300c instead of the motor device 300.
  • a poppet type EGR valve (not shown) is provided in place of the butterfly type EGR valve 400, and a linear actuator (not shown) is provided in place of the rotary actuator 500. It may be a thing. That is, in the EGR valve device 600, the opening degree of the poppet type EGR valve may be controlled by a linear actuator.
  • the direct acting actuator in this case uses a motor device 300, a motor device 300a, a motor device 300b, or a motor device 300c.
  • the EGR valve device 600 includes a motor device 300, a motor device 300a, an actuator 500 using the motor device 300b or the motor device 300c, and an EGR valve 400, and is provided by the actuator 500.
  • the opening degree of the EGR valve 400 is controlled.
  • the motor device 300, the motor device 300a, the motor device 300b, or the motor device 300c it is possible to realize the actuator 500 corresponding to the operating environment temperature T2 of the EGR valve device 600.
  • a lightweight actuator 500 can be realized.
  • the motor device of the present invention can be used, for example, in an EGR valve device.
  • the EGR valve device of the present invention can be used, for example, in an engine system for a vehicle.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Motor Or Generator Frames (AREA)
  • Inverter Devices (AREA)

Abstract

This motor device (300) is provided with a metal cooling jacket (200) and a motor (100) housed in the cooling jacket (200). The cooling jacket (200) has a flow path (13) for a coolant. The motor (100) has a stator (3) and a control board (8), said stator (3) being molded with a resin (2). The flow path (13) selectively includes at least one of a first flow path (13_1) provided in a region corresponding to a position where the board (8) is disposed and a second flow path (13_2) provided in a region corresponding to a position where the stator (3) is disposed.

Description

モータ装置及びＥＧＲバルブ装置Motor device and EGR valve device
　本発明は、モータ装置及び排気再循環（以下「ＥＧＲ」と記載する。）バルブ装置に関する。 The present invention relates to a motor device and an exhaust gas recirculation (hereinafter referred to as "EGR") valve device.
　従来、バタフライ式のＥＧＲバルブの開度が回転式のアクチュエータにより制御される装置が開発されている。また、ポペット式のＥＧＲバルブの開度が直動式のアクチュエータにより制御される装置が開発されている。以下、これらの装置を総称して「ＥＧＲバルブ装置」という。ＥＧＲバルブ装置におけるアクチュエータは、モータを用いたものである。特許文献１には、いわゆる「水冷」によりモータを冷却する構造が開示されている。 Conventionally, a device has been developed in which the opening degree of a butterfly type EGR valve is controlled by a rotary actuator. Further, a device has been developed in which the opening degree of a poppet type EGR valve is controlled by a direct acting actuator. Hereinafter, these devices are collectively referred to as "EGR valve device". The actuator in the EGR valve device uses a motor. Patent Document 1 discloses a structure in which a motor is cooled by so-called "water cooling".
特開２０１４－７５８７０号公報JP-A-2014-75870
　特許文献１記載の冷却構造（以下「従来の冷却構造」という。）においては、モータ（４０）の略全体がハウジング（１００）に収容されている。ハウジング（１００）は、略円筒状の筒状流路部（２０）、筒状流路部（２０）の一端部に設けられた第１の蓋部（１０）、及び筒状流路部（２０）の他端部に設けられた第２の蓋部（３０）により構成されている。 In the cooling structure described in Patent Document 1 (hereinafter referred to as "conventional cooling structure"), substantially the entire motor (40) is housed in the housing (100). The housing (100) includes a substantially cylindrical tubular flow path portion (20), a first lid portion (10) provided at one end of the tubular flow path portion (20), and a tubular flow path portion (20). It is composed of a second lid portion (30) provided at the other end of 20).
　ここで、筒状流路部（２０）の内部に複数枚の仕切り壁が設けられていることにより、筒状流路部（２０）の内部に複数本の往流路及び複数本の復流路が形成されている。また、第１の蓋部（１０）の内部に設けられた複数本の折り返し流路により、個々の復流路と対応する往流路とが接続されている。また、第２の蓋部（２０）の内部に設けられた複数本の折り返し流路により、個々の往流路と対応する復流路とが接続されている。 Here, since a plurality of partition walls are provided inside the tubular flow path portion (20), a plurality of outward flow paths and a plurality of return flows are provided inside the tubular flow path portion (20). The road is formed. Further, the individual return flow paths and the corresponding forward flow paths are connected by a plurality of folded flow paths provided inside the first lid portion (10). Further, the individual forward flow paths and the corresponding return flow paths are connected by a plurality of folded flow paths provided inside the second lid portion (20).
　すなわち、従来の冷却構造においては、モータ（４０）の外周部の略全体に亘り冷却水用の流路が張り巡らされている。これにより、モータ（４０）の略全体を略均一に冷却することが期待される。このように、従来の冷却構造は、複数個の部品（１０，２０，３０）を用いた複雑な構造により、モータ（４０）の略全体を略均一に冷却するものである。 That is, in the conventional cooling structure, a flow path for cooling water is stretched over substantially the entire outer peripheral portion of the motor (40). As a result, it is expected that substantially the entire motor (40) will be cooled substantially uniformly. As described above, in the conventional cooling structure, substantially the entire motor (40) is cooled substantially uniformly by a complicated structure using a plurality of parts (10, 20, 30).
　しかしながら、モータ用の冷却構造に要求される冷却量は、モータの内部構造に応じて、モータの部位毎に異なり得るものである。また、各部位に要求される冷却量は、各部位に含まれる材料及び電子部品などの耐熱温度Ｔ１と、モータを含む装置（例えばＥＧＲバルブ装置）の使用環境温度Ｔ２との差分値ΔＴに応じて異なり得るものである。また、各部位に要求される冷却量は、各部位における発熱量に応じて異なり得るものである。 However, the amount of cooling required for the cooling structure for the motor may differ for each part of the motor depending on the internal structure of the motor. The amount of cooling required for each part depends on the difference value ΔT between the heat resistant temperature T1 of the materials and electronic parts contained in each part and the operating environment temperature T2 of the device including the motor (for example, the EGR valve device). Can be different. Further, the amount of cooling required for each part may differ depending on the amount of heat generated at each part.
　すなわち、必ずしも、モータの略全体に対する略均一な冷却が要求されるものではない。例えば、耐熱温度Ｔ１が１３０度であるのに対して、使用環境温度Ｔ２が１６０度であるとき、差分値ΔＴが１００度未満（より具体的には３０度）であることにより、モータの略全体に対する略均一な冷却が不要となることがある。このとき、従来の冷却構造が用いられることにより、不要な冷却のために複雑な構造が用いられる問題があった。かかる複雑な構造により、モータ及び冷却構造を含むユニットの重量が増加する問題があった。 That is, it is not always required to cool the entire motor substantially uniformly. For example, when the heat-resistant temperature T1 is 130 degrees and the operating environment temperature T2 is 160 degrees, the difference value ΔT is less than 100 degrees (more specifically, 30 degrees), which is an abbreviation for the motor. It may not be necessary to have a substantially uniform cooling of the whole. At this time, since the conventional cooling structure is used, there is a problem that a complicated structure is used for unnecessary cooling. Due to such a complicated structure, there is a problem that the weight of the unit including the motor and the cooling structure is increased.
　本発明は、上記のような課題を解決するためになされたものであり、従来の冷却構造に比して簡単な構造により、要求される冷却量に応じた冷却を実現することを目的とする。 The present invention has been made to solve the above problems, and an object of the present invention is to realize cooling according to a required cooling amount by a structure simpler than that of a conventional cooling structure. ..
　本発明のモータ装置は、金属製の冷却用ジャケットと、冷却用ジャケットに収容されているモータと、を備え、冷却用ジャケットは、冷却液用の流路を有し、モータは、樹脂によりモールドされている固定子と、制御用の基板と、を有し、流路は、基板の配置位置に対応する部位に設けられている第１流路及び固定子の配置位置に対応する部位に設けられている第２流路のうちの少なくとも一方を選択的に含むものである。 The motor device of the present invention includes a metal cooling jacket and a motor housed in the cooling jacket. The cooling jacket has a flow path for a coolant, and the motor is molded by a resin. It has a stator and a substrate for control, and the flow path is provided at a portion corresponding to the arrangement position of the first flow path and the stator provided at the portion corresponding to the arrangement position of the substrate. It selectively includes at least one of the second flow paths provided.
　本発明によれば、上記のように構成したので、従来の冷却構造に比して簡単な構造により、要求される冷却量に応じた冷却を実現することができる。 According to the present invention, since it is configured as described above, it is possible to realize cooling according to the required cooling amount by a structure simpler than the conventional cooling structure.
実施の形態１に係るモータ装置の要部を示す正面図である。It is a front view which shows the main part of the motor device which concerns on Embodiment 1. FIG. 実施の形態１に係るモータ装置の要部を示す背面図である。It is a rear view which shows the main part of the motor device which concerns on Embodiment 1. FIG. 実施の形態１に係るモータ装置の要部を示す左側面図である。It is a left side view which shows the main part of the motor device which concerns on Embodiment 1. FIG. 実施の形態１に係るモータ装置の要部を示す右側面図である。It is a right side view which shows the main part of the motor device which concerns on Embodiment 1. FIG. 実施の形態１に係るモータ装置の要部を示す平面図である。It is a top view which shows the main part of the motor device which concerns on Embodiment 1. FIG. 実施の形態１に係るモータ装置の要部を示す底面図である。It is a bottom view which shows the main part of the motor device which concerns on Embodiment 1. FIG. 図１Ｅ及び図１Ｆに示すＡ－Ａ’線に沿う断面図である。It is sectional drawing which follows the AA' line shown in FIG. 1E and FIG. 1F. 実施の形態１に係るモータ装置における冷却用ジャケット及びモータを示す説明図である。It is explanatory drawing which shows the cooling jacket and the motor in the motor apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る他のモータ装置の要部を示す正面図である。It is a front view which shows the main part of another motor apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る他のモータ装置の要部を示す背面図である。It is a rear view which shows the main part of another motor apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る他のモータ装置の要部を示す左側面図である。It is a left side view which shows the main part of another motor apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る他のモータ装置の要部を示す右側面図である。It is a right side view which shows the main part of another motor apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る他のモータ装置の要部を示す平面図である。It is a top view which shows the main part of another motor apparatus which concerns on Embodiment 1. FIG. 実施の形態１に係る他のモータ装置の要部を示す底面図である。It is a bottom view which shows the main part of another motor device which concerns on Embodiment 1. FIG. 図４Ｅ及び図４Ｆに示すＡ－Ａ’線に沿う断面図である。4 is a cross-sectional view taken along the line AA'shown in FIGS. 4E and 4F. 実施の形態１に係る他のモータ装置における冷却用ジャケット及びモータを示す説明図である。It is explanatory drawing which shows the cooling jacket and the motor in the other motor apparatus which concerns on Embodiment 1. FIG. 実施の形態２に係るモータ装置の要部を示す正面図である。It is a front view which shows the main part of the motor device which concerns on Embodiment 2. FIG. 図７に示すＢ－Ｂ’線に沿う断面図である。It is sectional drawing which follows the line BB'shown in FIG. 実施の形態２に係るモータ装置の要部を示す平面図である。It is a top view which shows the main part of the motor device which concerns on Embodiment 2. FIG. 図９に示すＡ－Ａ’線に沿う断面図である。It is sectional drawing which follows the AA' line shown in FIG. 実施の形態３に係るモータ装置の要部を示す正面図である。It is a front view which shows the main part of the motor device which concerns on Embodiment 3. 図１１に示すＢ－Ｂ’線に沿う断面図である。It is sectional drawing which follows the line BB'shown in FIG. 実施の形態４に係るモータ装置の要部を示す正面図である。It is a front view which shows the main part of the motor device which concerns on Embodiment 4. FIG. 実施の形態４に係るモータ装置の要部を示す背面図である。It is a rear view which shows the main part of the motor device which concerns on Embodiment 4. FIG. 実施の形態４に係るモータ装置の要部を示す左側面図である。It is a left side view which shows the main part of the motor device which concerns on Embodiment 4. FIG. 実施の形態４に係るモータ装置の要部を示す右側面図である。It is a right side view which shows the main part of the motor device which concerns on Embodiment 4. FIG. 実施の形態４に係るモータ装置の要部を示す平面図である。It is a top view which shows the main part of the motor device which concerns on Embodiment 4. FIG. 実施の形態４に係るモータ装置の要部を示す底面図である。It is a bottom view which shows the main part of the motor device which concerns on Embodiment 4. FIG. 実施の形態５に係るＥＧＲバルブ装置の要部を示す正面図である。It is a front view which shows the main part of the EGR valve device which concerns on Embodiment 5.
　以下、この発明をより詳細に説明するために、この発明を実施するための形態について、添付の図面に従って説明する。 Hereinafter, in order to explain the present invention in more detail, a mode for carrying out the present invention will be described with reference to the accompanying drawings.
実施の形態１．
　図１は、実施の形態１に係るモータ装置の要部を示す六面図である。図２は、図１に示すＡ－Ａ’線に沿う断面図である。図３は、実施の形態１に係るモータ装置における冷却用ジャケット及びモータを示す説明図である。図１～図３を参照して、実施の形態１に係るモータ装置について説明する。また、図４は、実施の形態１に係る他のモータ装置の要部を示す六面図である。図５は、図４に示すＡ－Ａ’線に沿う断面図である。図６は、実施の形態１に係る他のモータ装置における冷却用ジャケット及びモータを示す説明図である。図４～図６を参照して、実施の形態１に係る他のモータ装置について説明する。 Embodiment 1.
FIG. 1 is a six-view view showing a main part of the motor device according to the first embodiment. FIG. 2 is a cross-sectional view taken along the line AA'shown in FIG. FIG. 3 is an explanatory view showing a cooling jacket and a motor in the motor device according to the first embodiment. The motor device according to the first embodiment will be described with reference to FIGS. 1 to 3. Further, FIG. 4 is a six-view view showing a main part of another motor device according to the first embodiment. FIG. 5 is a cross-sectional view taken along the line AA'shown in FIG. FIG. 6 is an explanatory view showing a cooling jacket and a motor in another motor device according to the first embodiment. The other motor device according to the first embodiment will be described with reference to FIGS. 4 to 6.
　図中、１はコイルである。コイル１は、樹脂２によりモールドされている。コイル１及び樹脂２により、固定子３の要部が構成されている。固定子３は、略四角柱状の外形を有しており、かつ、略円柱状の中空部４を有している。中空部４内に回転子５が設けられている。回転子５は、永久磁石により構成されている。回転子５は、固定子３に対して回転自在に設けられている。コイル１に電流が供給されることにより、トルクが発生する。当該発生するトルクの方向は、当該供給される電流の方向に応じた方向となる。また、当該発生するトルクの大きさは、当該供給される電流の大きさに応じた大きさとなる。 In the figure, 1 is a coil. The coil 1 is molded with the resin 2. The main part of the stator 3 is composed of the coil 1 and the resin 2. The stator 3 has a substantially square columnar outer shape, and has a substantially columnar hollow portion 4. A rotor 5 is provided in the hollow portion 4. The rotor 5 is composed of a permanent magnet. The rotor 5 is rotatably provided with respect to the stator 3. Torque is generated by supplying an electric current to the coil 1. The direction of the generated torque is a direction corresponding to the direction of the supplied current. Further, the magnitude of the generated torque becomes a magnitude corresponding to the magnitude of the supplied current.
　回転子５は、シャフト６と一体に回転自在に設けられている。シャフト６の先端部は、固定子３の底面部から固定子３外に突出している。また、回転子５は、磁石７と一体に回転自在に設けられている。磁石７により発生した磁気は、制御用の基板８に設けられた複数個の磁気センサ９により検出される。当該発生した磁気が検出されることにより、回転子５の回転位置が検出される。当該検出された回転位置は、基板８に設けられた回路（不図示）によるモータ１００の制御に用いられる。基板８は、固定子３の天面部に対して対向配置されている。 The rotor 5 is rotatably provided integrally with the shaft 6. The tip of the shaft 6 projects from the bottom surface of the stator 3 to the outside of the stator 3. Further, the rotor 5 is rotatably provided integrally with the magnet 7. The magnetism generated by the magnet 7 is detected by a plurality of magnetic sensors 9 provided on the control substrate 8. By detecting the generated magnetism, the rotational position of the rotor 5 is detected. The detected rotation position is used for controlling the motor 100 by a circuit (not shown) provided on the substrate 8. The substrate 8 is arranged so as to face the top surface portion of the stator 3.
　このようにして、モータ１００の要部が構成されている。ここで、基板８は、略矩形状である。したがって、モータ１００は、略四角柱状の外形を有している。 In this way, the main part of the motor 100 is configured. Here, the substrate 8 has a substantially rectangular shape. Therefore, the motor 100 has a substantially square columnar outer shape.
　モータ１００は、金属製の冷却用のジャケット（以下「冷却用ジャケット」という。）２００に収容されている。冷却用ジャケット２００は、例えば、アルミニウムによる一体成形品である。すなわち、冷却用ジャケット２００は、一部品により構成されている。 The motor 100 is housed in a metal cooling jacket (hereinafter referred to as "cooling jacket") 200. The cooling jacket 200 is, for example, an integrally molded product made of aluminum. That is, the cooling jacket 200 is composed of one component.
　より具体的には、冷却用ジャケット２００は、略箱状である。すなわち、冷却用ジャケット２００は、略四角柱状の外形を有しており、かつ、略四角柱状の凹部１１を有している。凹部１１の形状は、モータ１００の外形に対応している。モータ１００は、凹部１１に収容されている。 More specifically, the cooling jacket 200 has a substantially box shape. That is, the cooling jacket 200 has a substantially square columnar outer shape, and has a substantially square columnar recess 11. The shape of the recess 11 corresponds to the outer shape of the motor 100. The motor 100 is housed in the recess 11.
　これにより、モータ１００の天面部（すなわち基板８を含む部位）の全部、モータ１００の正面部（すなわち固定子３の正面部を含む部位）の大部、モータ１００の背面部（すなわち固定子３の背面部を含む部位）の大部、モータ１００の左側面部（すなわち固定子３の背面部を含む部位）の大部、及びモータ１００の右側面部（すなわち固定子３の右側面部を含む部位）の大部が凹部１１内に配置されている。また、モータ１００の正面部の残余の部位、モータ１００の背面部の残余の部位、モータ１００の左側面部の残余の部位、モータ１００の右側面部の残余の部位、及びモータ１００の底面部（すなわち固定子３の底面部及びシャフト６の先端部を含む部位）の全部が凹部１１の開口部１２により凹部１１外に突出している。 As a result, the entire top surface portion of the motor 100 (that is, the portion including the substrate 8), most of the front portion of the motor 100 (that is, the portion including the front portion of the stator 3), and the back portion of the motor 100 (that is, the stator 3). Most of the left side surface of the motor 100 (that is, the part including the back surface of the stator 3), and the right side surface of the motor 100 (that is, the part including the right side surface of the stator 3). Most of the above is arranged in the recess 11. Further, a residual portion on the front surface of the motor 100, a residual portion on the back surface of the motor 100, a residual portion on the left side surface of the motor 100, a residual portion on the right side surface of the motor 100, and a bottom surface portion of the motor 100 (that is, the bottom surface portion). The entire bottom surface of the stator 3 and the tip of the shaft 6) project out of the recess 11 through the opening 12 of the recess 11.
　すなわち、冷却用ジャケット２００は、モータ１００の天面部、正面部、背面部、左側面部及び右側面部に沿う形状を有している。 That is, the cooling jacket 200 has a shape along the top surface portion, the front surface portion, the back surface portion, the left side surface portion, and the right side surface portion of the motor 100.
　ここで、冷却用ジャケット２００は、冷却液用の流路１３を有している。流路１３は、基板８の配置位置に対応する部位に設けられている流路（以下「第１流路」という。）１３＿１及び固定子３の配置位置に対応する部位に設けられている流路（以下「第２流路」という。）１３＿２のうちの少なくとも一方を選択的に含むものである。 Here, the cooling jacket 200 has a flow path 13 for the coolant. The flow path 13 is a flow path provided at a portion corresponding to the arrangement position of the substrate 8 (hereinafter referred to as “first flow path”) 13_1 and a flow path provided at a portion corresponding to the arrangement position of the stator 3. It selectively includes at least one of the roads (hereinafter referred to as "second flow paths") 13_2.
　図１～図３は、第１流路１３＿１及び第２流路１３＿２のうちの第１流路１３＿１のみが冷却用ジャケット２００に設けられている例を示している。図１～図３に示す如く、第１流路１３＿１は、１本の略Ｕ字状の中空部により構成されている。第１流路１３＿１は、基板８の側面部に沿うように設けられている。これにより、基板８が当該Ｕ字内に配置されている。第１流路１３＿１の一端部（以下「第１端部」という。）１４＿１により、冷却液の供給口が構成されている。すなわち、第１端部１４＿１は、冷却液供給用のホース（不図示）と接続自在である。また、第１流路１３＿１の他端部（以下「第２端部」という。）１５＿１により、冷却液の排出口が構成されている。すなわち、第２端部１５＿１は、冷却液排出用のホース（不図示）と接続自在である。これにより、第１流路１３＿１内を冷却液が流れるようになっている。 FIGS. 1 to 3 show an example in which only the first flow path 13_1 of the first flow path 13_1 and the second flow path 13_2 is provided in the cooling jacket 200. As shown in FIGS. 1 to 3, the first flow path 13_1 is composed of one substantially U-shaped hollow portion. The first flow path 13_1 is provided along the side surface portion of the substrate 8. As a result, the substrate 8 is arranged in the U-shape. One end of the first flow path 13_1 (hereinafter referred to as "first end") 14_1 constitutes a coolant supply port. That is, the first end portion 14_1 can be freely connected to a hose (not shown) for supplying a coolant. Further, the other end of the first flow path 13_1 (hereinafter referred to as “second end”) 15_1 constitutes a cooling liquid discharge port. That is, the second end portion 15_1 can be freely connected to a hose (not shown) for discharging the coolant. As a result, the coolant flows in the first flow path 13_1.
　図４～図６は、第１流路１３＿１及び第２流路１３＿２のうちの第２流路１３＿２のみが冷却用ジャケット２００に設けられている例を示している。図４～図６に示す如く、第２流路１３＿２は、１本の略Ｕ字状の中空部により構成されている。第２流路１３＿２は、固定子３の外周部に沿うように設けられている。これにより、固定子３が当該Ｕ字内に配置されている。第２流路１３＿２の一端部（以下「第１端部」という。）１４＿２により、冷却液の供給口が構成されている。すなわち、第１端部１４＿２は、冷却液供給用のホース（不図示）と接続自在である。また、第２流路１３＿２の他端部（以下「第２端部」という。）１５＿２により、冷却液の排出口が構成されている。すなわち、第２端部１５＿２は、冷却液排出用のホース（不図示）と接続自在である。これにより、第２流路１３＿２内を冷却液が流れるようになっている。 4 to 6 show an example in which only the second flow path 13_2 of the first flow path 13_1 and the second flow path 13_2 is provided in the cooling jacket 200. As shown in FIGS. 4 to 6, the second flow path 13_2 is composed of one substantially U-shaped hollow portion. The second flow path 13_2 is provided along the outer peripheral portion of the stator 3. As a result, the stator 3 is arranged in the U-shape. One end of the second flow path 13_2 (hereinafter referred to as “first end”) 14_2 constitutes a coolant supply port. That is, the first end portion 14_2 can be freely connected to a hose (not shown) for supplying a coolant. Further, the other end portion (hereinafter referred to as “second end portion”) 15_2 of the second flow path 13_2 constitutes a cooling liquid discharge port. That is, the second end portion 15_2 can be freely connected to a hose (not shown) for discharging the coolant. As a result, the coolant flows in the second flow path 13_2.
　このようにして、モータ装置３００の要部が構成されている。なお、上記のとおり、第１流路１３＿１及び第２流路１３＿２のうちの少なくとも一方が選択的に冷却用ジャケット２００に設けられているものであれば良い。したがって、第１流路１３＿１及び第２流路１３＿２の両方が冷却用ジャケット２００に設けられているものであっても良い（不図示）。 In this way, the main part of the motor device 300 is configured. As described above, at least one of the first flow path 13_1 and the second flow path 13_2 may be selectively provided on the cooling jacket 200. Therefore, both the first flow path 13_1 and the second flow path 13_2 may be provided in the cooling jacket 200 (not shown).
　次に、モータ装置３００の構造による効果について説明する。 Next, the effect of the structure of the motor device 300 will be described.
　第一に、モータ１００の部位毎に、要求される冷却量に応じた冷却を実現することができる。 First, it is possible to realize cooling according to the required cooling amount for each part of the motor 100.
　すなわち、例えば、基板８に設けられた回路（以下「制御回路」という。）に含まれる電子部品の故障の発生を回避する観点から、基板８をモータ１００の他の部位に対する冷却量よりも大きい冷却量にて冷却することが要求されることがある。このとき、第１流路１３＿１及び第２流路１３＿２のうちの第１流路１３＿１のみが冷却用ジャケット２００に設けられている構造により（図１～図３参照）、第１流路１３＿１内を流れる冷却液により、基板８を重点的に冷却することができる。また、モータ１００の他の部位については、金属製の冷却用ジャケット２００が有する伝熱性により、基板８に対する冷却量に比して小さい冷却量にて冷却することができる。 That is, for example, from the viewpoint of avoiding the occurrence of failure of electronic components included in the circuit provided on the substrate 8 (hereinafter referred to as "control circuit"), the substrate 8 is larger than the cooling amount for other parts of the motor 100. Cooling with a cooling amount may be required. At this time, due to the structure in which only the first flow path 13_1 of the first flow path 13_1 and the second flow path 13_1 is provided in the cooling jacket 200 (see FIGS. 1 to 3), the inside of the first flow path 13_1 The substrate 8 can be cooled intensively by the cooling liquid flowing through the substrate 8. Further, the other parts of the motor 100 can be cooled with a cooling amount smaller than the cooling amount with respect to the substrate 8 due to the heat transfer property of the metal cooling jacket 200.
　または、通常、コイル１における発熱量は、モータ１００の他の部位における発熱量よりも大きい。このため、固定子３をモータ１００の他の部位に対する冷却量よりも大きい冷却量にて冷却することが要求されることがある。このとき、第１流路１３＿１及び第２流路１３＿２のうちの第２流路１３＿２のみが冷却用ジャケット２００に設けられている構造により（図４～図６参照）、第２流路１３＿２内を流れる冷却液により、固定子３を重点的に冷却することができる。また、モータ１００の他の部位については、金属製の冷却用ジャケット２００が有する伝熱性により、固定子３に対する冷却量に比して小さい冷却量にて冷却することができる。 Or, usually, the calorific value in the coil 1 is larger than the calorific value in other parts of the motor 100. Therefore, it may be required to cool the stator 3 with a cooling amount larger than the cooling amount for other parts of the motor 100. At this time, due to the structure in which only the second flow path 13_2 of the first flow path 13_1 and the second flow path 13_2 is provided in the cooling jacket 200 (see FIGS. 4 to 6), the inside of the second flow path 13_2 The stator 3 can be cooled intensively by the cooling liquid flowing through the stator 3. Further, the other parts of the motor 100 can be cooled with a cooling amount smaller than the cooling amount with respect to the stator 3 due to the heat transfer property of the metal cooling jacket 200.
　または、制御回路に含まれる電子部品の故障の発生を回避する観点から、及び、コイル１における発熱量に応じて、基板８及び固定子３をモータ１００の他の部位に対する冷却量よりも大きい冷却量にて冷却することが要求されることがある。このとき、第１流路１３＿１及び第２流路１３＿２の両方が冷却用ジャケット２００に設けられている構造により（不図示）、流路１３内を流れる冷却液により、基板８及び固定子３を重点的に冷却することができる。また、モータ１００の他の部位については、金属製の冷却用ジャケット２００が有する伝熱性により、基板８及び固定子３に対する冷却量に比して小さい冷却量にて冷却することができる。 Alternatively, from the viewpoint of avoiding the occurrence of failure of the electronic components included in the control circuit, and depending on the amount of heat generated in the coil 1, the substrate 8 and the stator 3 are cooled to be larger than the amount of cooling to other parts of the motor 100. Cooling by volume may be required. At this time, due to the structure in which both the first flow path 13_1 and the second flow path 13_2 are provided in the cooling jacket 200 (not shown), the substrate 8 and the stator 3 are separated by the coolant flowing in the flow path 13. It can be cooled intensively. Further, the other parts of the motor 100 can be cooled with a cooling amount smaller than the cooling amount for the substrate 8 and the stator 3 due to the heat transfer property of the metal cooling jacket 200.
　このように、モータ１００の部位毎に、要求される冷却量に応じた冷却を実現することができる。これにより、モータ装置３００のアプリケーション（例えばＥＧＲバルブ装置）の使用環境温度Ｔ２に応じた冷却を実現することができる。より具体的には、モータ装置３００に含まれる材料及び電子部品などの耐熱温度Ｔ１と使用環境温度Ｔ２との差分値ΔＴに応じた冷却を実現することができる。 In this way, it is possible to realize cooling according to the required cooling amount for each part of the motor 100. Thereby, cooling according to the operating environment temperature T2 of the application of the motor device 300 (for example, the EGR valve device) can be realized. More specifically, it is possible to realize cooling according to the difference value ΔT between the heat resistant temperature T1 and the operating environment temperature T2 of the materials and electronic parts contained in the motor device 300.
　第二に、コイル１が樹脂２によりモールドされていることにより、コイル１から冷却用ジャケット２００への熱伝導量を増加させることができる。これにより、冷却用ジャケット２００によるコイル１に対する冷却能力を向上することができる。 Secondly, since the coil 1 is molded with the resin 2, the amount of heat conduction from the coil 1 to the cooling jacket 200 can be increased. As a result, the cooling capacity of the cooling jacket 200 for the coil 1 can be improved.
　第三に、冷却用ジャケット２００が一部品により構成されており、かつ、第１流路１３＿１及び第２流路２３＿２の各々が１本の略Ｕ字状の中空部により構成されている。したがって、冷却用ジャケット２００の構造は、従来の冷却構造におけるハウジングの構造に比して簡単である。かかる簡単な構造により、モータ装置３００の重量の低減を図ることができる。この結果、断続的な振動が発生する装置（例えばＥＧＲバルブ装置）にモータ装置３００が用いられるものであるとき、かかる振動により発生する力を低減することができる。したがって、耐震性を向上するための追加部材及び追加構造、並びに強度を向上するための追加部材及び追加構造などを不要とすることができる。 Third, the cooling jacket 200 is composed of one component, and each of the first flow path 13_1 and the second flow path 23_2 is composed of one substantially U-shaped hollow portion. Therefore, the structure of the cooling jacket 200 is simpler than the structure of the housing in the conventional cooling structure. With such a simple structure, the weight of the motor device 300 can be reduced. As a result, when the motor device 300 is used for a device that generates intermittent vibration (for example, an EGR valve device), the force generated by such vibration can be reduced. Therefore, additional members and additional structures for improving seismic resistance, additional members and additional structures for improving strength, and the like can be eliminated.
　次に、モータ装置３００の変形例について説明する。 Next, a modified example of the motor device 300 will be described.
　冷却用ジャケット２００の形状は、図１～図３に示す形状又は図４～図６に示す形状に限定されるものではない。すなわち、冷却用ジャケット２００の形状は、モータ１００の天面部、正面部、背面部、左側面部及び右側面部に沿う形状に限定されるものではない。冷却用ジャケット２００の形状は、これらの面部のうちの選択された１個以上の面部に沿う形状であれば良い。 The shape of the cooling jacket 200 is not limited to the shapes shown in FIGS. 1 to 3 or the shapes shown in FIGS. 4 to 6. That is, the shape of the cooling jacket 200 is not limited to the shape along the top surface portion, the front surface portion, the back surface portion, the left side surface portion, and the right side surface portion of the motor 100. The shape of the cooling jacket 200 may be any shape that follows one or more selected surface portions of these surface portions.
　また、図１～図３に示す如く、第１流路１３＿１の形状は、略Ｕ字状であれば良く、完全なＵ字状でなくとも良い。また、図４～図６に示す如く、第２流路１３＿２の形状は、略Ｕ字状であれば良く、完全なＵ字状でなくとも良い。本願の請求の範囲に記載された「Ｕ字状」の用語の意義は、完全なＵ字状に限定されるものではなく、略Ｕ字状を包含するものである。 Further, as shown in FIGS. 1 to 3, the shape of the first flow path 13_1 may be substantially U-shaped and may not be completely U-shaped. Further, as shown in FIGS. 4 to 6, the shape of the second flow path 13_2 may be substantially U-shaped and may not be completely U-shaped. The meaning of the term "U-shaped" described in the claims of the present application is not limited to a complete U-shaped shape, but includes a substantially U-shaped shape.
　また、第１流路１３＿１の形状は、略Ｕ字状に限定されるものではない。上記のとおり、第１流路１３＿１は、冷却用ジャケット２００のうちの基板８の配置位置に対応する部位に設けられているものであれば良い。したがって、第１流路１３＿１の形状は、冷却用ジャケット２００の形状に応じて異なるものであっても良い。 Further, the shape of the first flow path 13_1 is not limited to a substantially U shape. As described above, the first flow path 13_1 may be provided at a portion of the cooling jacket 200 corresponding to the arrangement position of the substrate 8. Therefore, the shape of the first flow path 13_1 may be different depending on the shape of the cooling jacket 200.
　また、第２流路１３＿２の形状は、略Ｕ字状に限定されるものではない。上記のとおり、第２流路１３＿２は、冷却用ジャケット２００のうちの固定子３の配置位置に対応する部位に設けられているものであれば良い。したがって、第２流路１３＿２の形状は、冷却用ジャケット２００の形状に応じて異なるものであっても良い。 Further, the shape of the second flow path 13_2 is not limited to a substantially U shape. As described above, the second flow path 13_2 may be provided at a portion of the cooling jacket 200 corresponding to the arrangement position of the stator 3. Therefore, the shape of the second flow path 13_2 may be different depending on the shape of the cooling jacket 200.
　以上のように、実施の形態１に係るモータ装置３００は、金属製の冷却用ジャケット２００と、冷却用ジャケット２００に収容されているモータ１００と、を備え、冷却用ジャケット２００は、冷却液用の流路１３を有し、モータ１００は、樹脂２によりモールドされている固定子３と、制御用の基板８と、を有し、流路１３は、基板８の配置位置に対応する部位に設けられている第１流路１３＿１及び固定子３の配置位置に対応する部位に設けられている第２流路１３＿２のうちの少なくとも一方を選択的に含むものである。これにより、モータ１００の部位毎に、要求される冷却量に応じた冷却を実現することができる。また、従来の冷却構造に比して簡単な構造により、かかる冷却を実現することができる。この結果、モータ装置３００の重量の低減を図ることができる。 As described above, the motor device 300 according to the first embodiment includes a metal cooling jacket 200 and a motor 100 housed in the cooling jacket 200, and the cooling jacket 200 is for a coolant. The motor 100 has a stator 3 molded by the resin 2 and a control substrate 8, and the flow path 13 is located at a portion corresponding to the arrangement position of the substrate 8. It selectively includes at least one of the first flow path 13_1 provided and the second flow path 13_2 provided at the portion corresponding to the arrangement position of the stator 3. As a result, it is possible to realize cooling according to the required cooling amount for each part of the motor 100. Further, such cooling can be realized by a structure simpler than the conventional cooling structure. As a result, the weight of the motor device 300 can be reduced.
　また、流路１３は、第１流路１３＿１及び第２流路１３＿２のうちの第１流路１３＿１のみを含み、第１流路１３＿１が１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に基板８が配置されている。これにより、例えば、図１～図３に示す構造を実現することができる。かかる構造により、基板８を重点的に冷却することができる。 Further, the flow path 13 includes only the first flow path 13_1 of the first flow path 13_1 and the second flow path 13_2, and the first flow path 13_1 is composed of one U-shaped hollow portion. Moreover, the substrate 8 is arranged in the U-shape. Thereby, for example, the structures shown in FIGS. 1 to 3 can be realized. With such a structure, the substrate 8 can be cooled intensively.
　または、流路１３は、第１流路１３＿１及び第２流路１３＿２のうちの第２流路１３＿２のみを含み、第２流路１３＿２が１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に固定子３が配置されている。これにより、例えば、図４～図６に示す構造を実現することができる。かかる構造により、固定子３を重点的に冷却することができる。 Alternatively, the flow path 13 includes only the second flow path 13_2 of the first flow path 13_1 and the second flow path 13_2, and the second flow path 13_2 is composed of one U-shaped hollow portion. Moreover, the stator 3 is arranged in the U-shape. Thereby, for example, the structures shown in FIGS. 4 to 6 can be realized. With such a structure, the stator 3 can be cooled intensively.
　または、流路１３は、第１流路１３＿１及び第２流路１３＿２の両方を含み、第１流路１３＿１が１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に基板８が配置されており、第２流路１３＿２が他の１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に固定子３が配置されている。これにより、基板８及び固定子３を重点的に冷却することができる。 Alternatively, the flow path 13 includes both the first flow path 13_1 and the second flow path 13_1, the first flow path 13_1 is composed of one U-shaped hollow portion, and the inside of the U-shape. The substrate 8 is arranged in the U-shape, the second flow path 13_2 is formed by another U-shaped hollow portion, and the stator 3 is arranged in the U-shape. As a result, the substrate 8 and the stator 3 can be cooled intensively.
実施の形態２．
　図７は、実施の形態２に係るモータ装置の要部を示す正面図である。図８は、図７に示すＢ－Ｂ’線に沿う断面図である。図９は、実施の形態２に係るモータ装置の要部を示す平面図である。図１０は、図９に示すＡ－Ａ’線に沿う断面図である。図７～図１０を参照して、実施の形態２に係るモータ装置について説明する。なお、図７～図１０において、図１～図３に示す構成部材と同様の構成部材には同一符号を付して説明を省略する。 Embodiment 2.
FIG. 7 is a front view showing a main part of the motor device according to the second embodiment. FIG. 8 is a cross-sectional view taken along the line BB'shown in FIG. FIG. 9 is a plan view showing a main part of the motor device according to the second embodiment. FIG. 10 is a cross-sectional view taken along the line AA'shown in FIG. The motor device according to the second embodiment will be described with reference to FIGS. 7 to 10. In FIGS. 7 to 10, the same components as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
　図８及び図１０に示す如く、固定子３の外周部と冷却用ジャケット２００の内周部との間に伝熱材２１が設けられている。図８に示す如く、伝熱材２１は、固定子３の外周部の全周に亘り設けられている。伝熱材２１は、高熱伝導性を有する材料により構成されている。具体的には、例えば、伝熱材２１は、金属製のスペーサ、半固体状の樹脂製のシート、又は高粘度を有する液状のグリスにより構成されている。 As shown in FIGS. 8 and 10, a heat transfer material 21 is provided between the outer peripheral portion of the stator 3 and the inner peripheral portion of the cooling jacket 200. As shown in FIG. 8, the heat transfer material 21 is provided over the entire circumference of the outer peripheral portion of the stator 3. The heat transfer material 21 is made of a material having high thermal conductivity. Specifically, for example, the heat transfer material 21 is composed of a metal spacer, a semi-solid resin sheet, or a liquid grease having a high viscosity.
　このようにして、モータ装置３００ａの要部が構成されている。 In this way, the main part of the motor device 300a is configured.
　伝熱材２１が設けられていることにより、固定子３と冷却用ジャケット２００間の密着性を向上することができる。また、固定子３から冷却用ジャケット２００への熱伝導量を増加させることができる。この結果、冷却用ジャケット２００による固定子３に対する冷却能力を向上することができる。 By providing the heat transfer material 21, the adhesion between the stator 3 and the cooling jacket 200 can be improved. Further, the amount of heat conduction from the stator 3 to the cooling jacket 200 can be increased. As a result, the cooling capacity of the cooling jacket 200 for the stator 3 can be improved.
　なお、モータ装置３００ａは、実施の形態１にて説明したものと同様の種々の変形例を採用することができる。例えば、第１流路１３＿１に代えて又は加えて、第２流路１３＿２が冷却用ジャケット２００に設けられているものであっても良い。 Note that the motor device 300a can employ various modifications similar to those described in the first embodiment. For example, instead of or in addition to the first flow path 13_1, the second flow path 13_2 may be provided in the cooling jacket 200.
　以上のように、実施の形態２に係るモータ装置３００ａにおいては、固定子３の外周部と冷却用ジャケット２００の内周部との間に伝熱材２１が設けられている。これにより、固定子３から冷却用ジャケット２００への熱伝導量を増加させることができる。 As described above, in the motor device 300a according to the second embodiment, the heat transfer material 21 is provided between the outer peripheral portion of the stator 3 and the inner peripheral portion of the cooling jacket 200. As a result, the amount of heat conduction from the stator 3 to the cooling jacket 200 can be increased.
実施の形態３．
　図１１は、実施の形態３に係るモータ装置の要部を示す正面図である。図１２は、図１１に示すＢ－Ｂ’線に沿う断面図である。図１１及び図１２を参照して、実施の形態３に係るモータ装置について説明する。なお、図１１及び図１２において、図１～図３に示す構成部材と同様の構成部材には同一符号を付して説明を省略する。 Embodiment 3.
FIG. 11 is a front view showing a main part of the motor device according to the third embodiment. FIG. 12 is a cross-sectional view taken along the line BB'shown in FIG. The motor device according to the third embodiment will be described with reference to FIGS. 11 and 12. In addition, in FIGS. 11 and 12, the same components as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
　図１２に示す如く、固定子３ａの外周部が略波状であり、かつ、冷却用ジャケット２００ａの内周部が略波状である。冷却用ジャケット２００ａの内周部の形状は、固定子３ａの外周部の形状に対応している。これにより、固定子３ａと冷却用ジャケット２００ａ間の接触面部が略波状である。 As shown in FIG. 12, the outer peripheral portion of the stator 3a is substantially wavy, and the inner peripheral portion of the cooling jacket 200a is substantially wavy. The shape of the inner peripheral portion of the cooling jacket 200a corresponds to the shape of the outer peripheral portion of the stator 3a. As a result, the contact surface portion between the stator 3a and the cooling jacket 200a is substantially wavy.
　このようにして、モータ装置３００ｂの要部が構成されている。 In this way, the main part of the motor device 300b is configured.
　固定子３ａと冷却用ジャケット２００ａ間の接触面部が略波状であることにより、固定子３ａと冷却用ジャケット２００ａ間の接触面積を大きくすることができる。これにより、固定子３ａから冷却用ジャケット２００ａへの熱伝導量を増加させることができる。この結果、冷却用ジャケット２００ａによる固定子３ａに対する冷却能力を向上することができる。 Since the contact surface portion between the stator 3a and the cooling jacket 200a is substantially wavy, the contact area between the stator 3a and the cooling jacket 200a can be increased. As a result, the amount of heat conduction from the stator 3a to the cooling jacket 200a can be increased. As a result, the cooling capacity of the cooling jacket 200a for the stator 3a can be improved.
　なお、固定子３ａの外周部と冷却用ジャケット２００ａの内周部との間に伝熱材（不図示）が設けられているものであっても良い。すなわち、固定子３ａと冷却用ジャケット２００ａ間の対向面部が略波状であっても良い。これにより、固定子３ａと冷却用ジャケット２００ａ間の対向面積を大きくすることができる。また、かかる伝熱材は、図８及び図１０に示す伝熱材２１と同様のものである。かかる伝熱材が設けられていることにより、固定子３ａと冷却用ジャケット２００ａ間の密着性を向上することができる。また、固定子３ａから冷却用ジャケット２００ａへの熱伝導量を増加させることができる。この結果、冷却用ジャケット２００ａによる固定子３ａに対する冷却能力を向上することができる。 A heat transfer material (not shown) may be provided between the outer peripheral portion of the stator 3a and the inner peripheral portion of the cooling jacket 200a. That is, the facing surface portion between the stator 3a and the cooling jacket 200a may be substantially wavy. As a result, the facing area between the stator 3a and the cooling jacket 200a can be increased. Further, the heat transfer material is the same as the heat transfer material 21 shown in FIGS. 8 and 10. By providing such a heat transfer material, the adhesion between the stator 3a and the cooling jacket 200a can be improved. Further, the amount of heat conduction from the stator 3a to the cooling jacket 200a can be increased. As a result, the cooling capacity of the cooling jacket 200a for the stator 3a can be improved.
　また、モータ装置３００ｂは、実施の形態１にて説明したものと同様の種々の変形例を採用することができる。例えば、第１流路１３＿１に代えて又は加えて、第２流路１３＿２が冷却用ジャケット２００ａに設けられているものであっても良い。 Further, as the motor device 300b, various modifications similar to those described in the first embodiment can be adopted. For example, in place of or in addition to the first flow path 13_1, the second flow path 13_2 may be provided in the cooling jacket 200a.
　また、図１２に示す如く、固定子３ａの外周部の形状は、略波状であれば良く、完全な波状でなくとも良い。また、冷却用ジャケット２００ａの内周部の形状は、略波状であれば良く、完全な波状でなくとも良い。本願の請求の範囲に記載された「波状」の用語の意義は、完全な波状に限定されるものではなく、略波状を包含するものである。 Further, as shown in FIG. 12, the shape of the outer peripheral portion of the stator 3a may be substantially wavy and may not be completely wavy. Further, the shape of the inner peripheral portion of the cooling jacket 200a may be substantially wavy and may not be completely wavy. The meaning of the term "wavy" described in the claims of the present application is not limited to perfect wavy, but includes substantially wavy.
　以上のように、実施の形態３に係るモータ装置３００ｂにおいては、固定子３ａの外周部が波状であり、かつ、冷却用ジャケット２００ａの内周部が波状である。これにより、固定子３ａから冷却用ジャケット２００ａへの熱伝導量を増加させることができる。 As described above, in the motor device 300b according to the third embodiment, the outer peripheral portion of the stator 3a is wavy and the inner peripheral portion of the cooling jacket 200a is wavy. As a result, the amount of heat conduction from the stator 3a to the cooling jacket 200a can be increased.
実施の形態４．
　図１３は、実施の形態４に係るモータ装置の要部を示す六面図である。図１３を参照して、実施の形態４に係るモータ装置の要部について説明する。なお、図１３において、図１～図３に示す構成部材と同様の構成部材には同一符号を付して説明を省略する。 Embodiment 4.
FIG. 13 is a six-view view showing a main part of the motor device according to the fourth embodiment. A main part of the motor device according to the fourth embodiment will be described with reference to FIG. In FIG. 13, the same components as those shown in FIGS. 1 to 3 are designated by the same reference numerals, and the description thereof will be omitted.
　図１３に示す如く、冷却用ジャケット２００ｂの表面部に複数個の略板状の凸部（以下「リブ」という。）３１が設けられている。より具体的には、冷却用ジャケット２００ｂの正面部に複数個（例えば６個）のリブ３１＿１が設けられている。また、冷却用ジャケット２００ｂの背面部に複数個（例えば６個）のリブ３１＿２が設けられている。また、冷却用ジャケット２００ｂの左側面部に複数個（例えば６個）のリブ３１＿３が設けられている。また、冷却用ジャケット２００ｂの右側面部に複数個（例えば６個）のリブ３１＿４が設けられている。また、冷却用ジャケット２００ｂの天面部に複数個（例えば６個）のリブ３１＿５が設けられている。 As shown in FIG. 13, a plurality of substantially plate-shaped convex portions (hereinafter referred to as “ribs”) 31 are provided on the surface portion of the cooling jacket 200b. More specifically, a plurality of (for example, 6) ribs 31_1 are provided on the front surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_2 are provided on the back surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_3 are provided on the left side surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_4 are provided on the right side surface of the cooling jacket 200b. Further, a plurality of (for example, 6) ribs 31_5 are provided on the top surface of the cooling jacket 200b.
　このようにして、モータ装置３００ｃの要部が構成されている。 In this way, the main part of the motor device 300c is configured.
　複数個のリブ３１が設けられていることにより、冷却用ジャケット２００ｂの表面積を大きくすることができる。これにより、冷却用ジャケット２００ｂによる外部空間に対する放熱能力を向上することができる。この結果、冷却用ジャケット２００ｂによるモータ１００に対する冷却能力を向上することができる。 The surface area of the cooling jacket 200b can be increased by providing the plurality of ribs 31. As a result, the heat dissipation capacity of the cooling jacket 200b with respect to the external space can be improved. As a result, the cooling capacity of the cooling jacket 200b for the motor 100 can be improved.
　なお、リブ３１が設けられている面部は、冷却用ジャケット２００ｂの正面部、背面部、左側面部、右側面部及び天面部に限定されるものではない。また、各面部に設けられているリブ３１の個数は、６個に限定されるものではない。すなわち、冷却用ジャケット２００ｂの正面部、背面部、左側面部、右側面部及び天面部のうちの選択された１個以上の面部の各々に、１個以上のリブ３１が設けられているものであれば良い。ただし、冷却用ジャケット２００ｂによる放熱能力を向上する観点から、複数個の面部の各々に複数個のリブ３１が設けられているのが好適である。 The surface portion on which the rib 31 is provided is not limited to the front portion, the back portion, the left side surface portion, the right side surface portion, and the top surface portion of the cooling jacket 200b. Further, the number of ribs 31 provided on each surface portion is not limited to six. That is, one or more ribs 31 may be provided on each of one or more selected face portions of the front portion, the back portion, the left side surface portion, the right side surface portion, and the top surface portion of the cooling jacket 200b. Just do it. However, from the viewpoint of improving the heat dissipation capacity of the cooling jacket 200b, it is preferable that a plurality of ribs 31 are provided on each of the plurality of surface portions.
　また、固定子３の外周部と冷却用ジャケット２００ｂの内周部との間に伝熱材（不図示）が設けられているものであっても良い。かかる伝熱材は、図８及び図１０に示す伝熱材２１と同様のものである。 Further, a heat transfer material (not shown) may be provided between the outer peripheral portion of the stator 3 and the inner peripheral portion of the cooling jacket 200b. Such a heat transfer material is the same as the heat transfer material 21 shown in FIGS. 8 and 10.
　また、固定子３に代えて固定子３ａが設けられており、かつ、冷却用ジャケット２００ｂの内周部が略波状であっても良い。また、この場合において、固定子３ａの外周部と冷却用ジャケット２００ｂの内周部との間に伝熱材（不図示）が設けられているものであっても良い。かかる伝熱材は、図８及び図１０に示す伝熱材２１と同様のものである。 Further, the stator 3a may be provided instead of the stator 3, and the inner peripheral portion of the cooling jacket 200b may be substantially wavy. Further, in this case, a heat transfer material (not shown) may be provided between the outer peripheral portion of the stator 3a and the inner peripheral portion of the cooling jacket 200b. Such a heat transfer material is the same as the heat transfer material 21 shown in FIGS. 8 and 10.
　また、モータ装置３００ｃは、実施の形態１にて説明したものと同様の種々の変形例を採用することができる。例えば、第１流路１３＿１に代えて又は加えて、第２流路１３＿２が冷却用ジャケット２００ｂに設けられているものであっても良い。 Further, as the motor device 300c, various modifications similar to those described in the first embodiment can be adopted. For example, in place of or in addition to the first flow path 13_1, the second flow path 13_2 may be provided in the cooling jacket 200b.
　以上のように、実施の形態４に係るモータ装置３００ｃにおいては、冷却用ジャケット２００ｂの表面部に複数個のリブ３１が設けられている。これにより、冷却用ジャケット２００ｂによる外部空間に対する放熱能力を向上することができる。 As described above, in the motor device 300c according to the fourth embodiment, a plurality of ribs 31 are provided on the surface portion of the cooling jacket 200b. As a result, the heat dissipation capacity of the cooling jacket 200b with respect to the external space can be improved.
実施の形態５．
　図１４は、実施の形態５に係るＥＧＲバルブ装置の要部を示す正面図である。図１４を参照して、実施の形態５に係るＥＧＲバルブ装置について説明する。 Embodiment 5.
FIG. 14 is a front view showing a main part of the EGR valve device according to the fifth embodiment. The EGR valve device according to the fifth embodiment will be described with reference to FIG.
　図１４に示す如く、バタフライ式のＥＧＲバルブ４００及び回転式のアクチュエータ５００により、ＥＧＲバルブ装置６００の要部が構成されている。ＥＧＲバルブ４００の開度は、アクチュエータ５００により制御されるものである。アクチュエータ５００によるＥＧＲバルブ４００の開度の制御には、公知の種々の技術を用いることができる。これらの技術についての詳細な説明は省略する。 As shown in FIG. 14, the main part of the EGR valve device 600 is composed of the butterfly type EGR valve 400 and the rotary actuator 500. The opening degree of the EGR valve 400 is controlled by the actuator 500. Various known techniques can be used to control the opening degree of the EGR valve 400 by the actuator 500. Detailed description of these techniques will be omitted.
　ここで、アクチュエータ５００は、図１～図３に示すモータ装置３００を用いたものである。 Here, the actuator 500 uses the motor device 300 shown in FIGS. 1 to 3.
　実施の形態１にて説明したとおり、モータ装置３００を用いることにより、モータ１００の部位毎に、要求される冷却量に応じた冷却を実現することができる。これにより、モータ装置３００のアプリケーション（すなわちＥＧＲバルブ装置６００）の使用環境温度Ｔ２に応じた冷却を実現することができる。より具体的には、モータ装置３００に含まれる材料及び電子部品などの耐熱温度Ｔ１と使用環境温度Ｔ２との差分値ΔＴに応じた冷却を実現することができる。 As described in the first embodiment, by using the motor device 300, it is possible to realize cooling according to the required cooling amount for each part of the motor 100. Thereby, cooling according to the operating environment temperature T2 of the application of the motor device 300 (that is, the EGR valve device 600) can be realized. More specifically, it is possible to realize cooling according to the difference value ΔT between the heat resistant temperature T1 and the operating environment temperature T2 of the materials and electronic parts contained in the motor device 300.
　また、実施の形態１にて説明したとおり、冷却用ジャケット２００の構造は、従来の冷却構造におけるハウジングの構造に比して簡単である。かかる簡単な構造により、モータ装置３００の重量の低減を図ることができる。この結果、断続的な振動が発生する装置（すなわちＥＧＲバルブ装置６００）にモータ装置３００が用いられるものであるとき、かかる振動により発生する力を低減することができる。したがって、耐震性を向上するための追加部材及び追加構造、並びに強度を向上するための追加部材及び追加構造などを不要とすることができる。 Further, as described in the first embodiment, the structure of the cooling jacket 200 is simpler than the structure of the housing in the conventional cooling structure. With such a simple structure, the weight of the motor device 300 can be reduced. As a result, when the motor device 300 is used for the device that generates intermittent vibration (that is, the EGR valve device 600), the force generated by such vibration can be reduced. Therefore, additional members and additional structures for improving seismic resistance, additional members and additional structures for improving strength, and the like can be eliminated.
　なお、アクチュエータ５００は、図１～図３に示すモータ装置３００に代えて、図４～図６に示すモータ装置３００を用いたものであっても良い。また、アクチュエータ５００は、モータ装置３００に代えて、モータ装置３００ａ、モータ装置３００ｂ又はモータ装置３００ｃを用いたものであっても良い。 Note that the actuator 500 may use the motor device 300 shown in FIGS. 4 to 6 instead of the motor device 300 shown in FIGS. 1 to 3. Further, the actuator 500 may use a motor device 300a, a motor device 300b, or a motor device 300c instead of the motor device 300.
　また、バタフライ式のＥＧＲバルブ４００に代えてポペット式のＥＧＲバルブ（不図示）が設けられており、かつ、回転式のアクチュエータ５００に代えて直動式のアクチュエータ（不図示）が設けられているものであっても良い。すなわち、ＥＧＲバルブ装置６００においては、ポペット式のＥＧＲバルブの開度が直動式のアクチュエータにより制御されるものであっても良い。この場合における直動式のアクチュエータは、モータ装置３００、モータ装置３００ａ、モータ装置３００ｂ又はモータ装置３００ｃを用いたものである。 Further, a poppet type EGR valve (not shown) is provided in place of the butterfly type EGR valve 400, and a linear actuator (not shown) is provided in place of the rotary actuator 500. It may be a thing. That is, in the EGR valve device 600, the opening degree of the poppet type EGR valve may be controlled by a linear actuator. The direct acting actuator in this case uses a motor device 300, a motor device 300a, a motor device 300b, or a motor device 300c.
　以上のように、実施の形態５に係るＥＧＲバルブ装置６００は、モータ装置３００、モータ装置３００ａ、モータ装置３００ｂ又はモータ装置３００ｃを用いたアクチュエータ５００と、ＥＧＲバルブ４００と、を備え、アクチュエータ５００によりＥＧＲバルブ４００の開度が制御されるものである。モータ装置３００、モータ装置３００ａ、モータ装置３００ｂ又はモータ装置３００ｃを用いることにより、ＥＧＲバルブ装置６００の使用環境温度Ｔ２に対応したアクチュエータ５００を実現することができる。また、軽量なアクチュエータ５００を実現することができる。 As described above, the EGR valve device 600 according to the fifth embodiment includes a motor device 300, a motor device 300a, an actuator 500 using the motor device 300b or the motor device 300c, and an EGR valve 400, and is provided by the actuator 500. The opening degree of the EGR valve 400 is controlled. By using the motor device 300, the motor device 300a, the motor device 300b, or the motor device 300c, it is possible to realize the actuator 500 corresponding to the operating environment temperature T2 of the EGR valve device 600. In addition, a lightweight actuator 500 can be realized.
　なお、本願発明はその発明の範囲内において、各実施の形態の自由な組み合わせ、あるいは各実施の形態の任意の構成要素の変形、もしくは各実施の形態において任意の構成要素の省略が可能である。 In the present invention, within the scope of the invention, it is possible to freely combine each embodiment, modify any component of each embodiment, or omit any component in each embodiment. ..
　本発明のモータ装置は、例えば、ＥＧＲバルブ装置に用いることができる。本発明のＥＧＲバルブ装置は、例えば、車両用のエンジンシステムに用いることができる。 The motor device of the present invention can be used, for example, in an EGR valve device. The EGR valve device of the present invention can be used, for example, in an engine system for a vehicle.
　１　コイル、２　樹脂、３，３ａ　固定子、４　中空部、５　回転子、６　シャフト、７　磁石、８　基板、９　磁気センサ、１１　凹部、１２　開口部、１３＿１　第１流路、１３＿２　第２流路、１４＿１　第１端部、１４＿２　第１端部、１５＿１　第２端部、１５＿２　第２端部、２１　伝熱材、３１＿１　リブ、３１＿２　リブ、３１＿３　リブ、３１＿４　リブ、３１＿５　リブ、１００　モータ、２００，２００ａ，２００ｂ　冷却用ジャケット、３００，３００ａ，３００ｂ，３００ｃ　モータ装置、４００　ＥＧＲバルブ、５００　アクチュエータ、６００　ＥＧＲバルブ装置。 1 coil, 2 resin, 3,3a stator, 4 hollow part, 5 rotor, 6 shaft, 7 magnet, 8 substrate, 9 magnetic sensor, 11 recess, 12 opening, 13_1 1st flow path, 13_2 2nd flow Road, 14_1 1st end, 14_2 1st end, 15_1 2nd end, 15_2 2nd end, 21 heat transfer material, 31_1 rib, 31_2 rib, 31_3 rib, 31_4 rib, 31_5 rib, 100 motor, 200 , 200a, 200b cooling jacket, 300, 300a, 300b, 300c motor device, 400 EGR valve, 500 actuator, 600 EGR valve device.

Claims (12)

  1. 　金属製の冷却用ジャケットと、
    　前記冷却用ジャケットに収容されているモータと、を備え、
    　前記冷却用ジャケットは、冷却液用の流路を有し、
    　前記モータは、樹脂によりモールドされている固定子と、制御用の基板と、を有し、
    　前記流路は、前記基板の配置位置に対応する部位に設けられている第１流路及び前記固定子の配置位置に対応する部位に設けられている第２流路のうちの少なくとも一方を選択的に含むものである
    　ことを特徴とするモータ装置。     With a metal cooling jacket,
    A motor housed in the cooling jacket and
    The cooling jacket has a flow path for a coolant and has a flow path.
    The motor has a stator molded from resin and a control substrate.
    For the flow path, at least one of the first flow path provided in the portion corresponding to the arrangement position of the substrate and the second flow path provided in the portion corresponding to the arrangement position of the stator is selected. A motor device characterized by including the above.
  2. 　前記流路は、前記第１流路及び前記第２流路のうちの前記第１流路のみを含み、
    　前記第１流路が１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に前記基板が配置されている
    　ことを特徴とする請求項１記載のモータ装置。     The flow path includes only the first flow path of the first flow path and the second flow path.
    The motor device according to claim 1, wherein the first flow path is composed of one U-shaped hollow portion, and the substrate is arranged in the U-shape.
  3. 　前記流路は、前記第１流路及び前記第２流路のうちの前記第２流路のみを含み、
    　前記第２流路が１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に前記固定子が配置されている
    　ことを特徴とする請求項１記載のモータ装置。     The flow path includes only the second flow path of the first flow path and the second flow path.
    The motor device according to claim 1, wherein the second flow path is composed of one U-shaped hollow portion, and the stator is arranged in the U-shape.
  4. 　前記流路は、前記第１流路及び前記第２流路の両方を含み、
    　前記第１流路が１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に前記基板が配置されており、
    　前記第２流路が他の１本のＵ字状の中空部により構成されており、かつ、当該Ｕ字内に前記固定子が配置されている
    　ことを特徴とする請求項１記載のモータ装置。     The flow path includes both the first flow path and the second flow path.
    The first flow path is composed of one U-shaped hollow portion, and the substrate is arranged in the U-shape.
    The motor device according to claim 1, wherein the second flow path is composed of another U-shaped hollow portion, and the stator is arranged in the U-shape. ..
  5. 　前記固定子の外周部と前記冷却用ジャケットの内周部との間に伝熱材が設けられていることを特徴とする請求項１から請求項４のうちのいずれか１項記載のモータ装置。 The motor device according to any one of claims 1 to 4, wherein a heat transfer material is provided between the outer peripheral portion of the stator and the inner peripheral portion of the cooling jacket. ..
  6. 　前記伝熱材は、金属製のスペーサにより構成されていることを特徴とする請求項５記載のモータ装置。 The motor device according to claim 5, wherein the heat transfer material is made of a metal spacer.
  7. 　前記伝熱材は、半固体状の樹脂製のシートにより構成されていることを特徴とする請求項５記載のモータ装置。 The motor device according to claim 5, wherein the heat transfer material is made of a semi-solid resin sheet.
  8. 　前記伝熱材は、グリスにより構成されていることを特徴とする請求項５記載のモータ装置。 The motor device according to claim 5, wherein the heat transfer material is made of grease.
  9. 　前記固定子の外周部が波状であり、かつ、前記冷却用ジャケットの内周部が波状であることを特徴とする請求項１から請求項４のうちのいずれか１項記載のモータ装置。 The motor device according to any one of claims 1 to 4, wherein the outer peripheral portion of the stator is wavy and the inner peripheral portion of the cooling jacket is wavy.
  10. 　前記外周部と前記内周部間に伝熱材が設けられていることを特徴とする請求項９記載のモータ装置。 The motor device according to claim 9, wherein a heat transfer material is provided between the outer peripheral portion and the inner peripheral portion.
  11. 　前記冷却用ジャケットの表面部に複数個のリブが設けられていることを特徴とする請求項１から請求項４のうちのいずれか１項記載のモータ装置。 The motor device according to any one of claims 1 to 4, wherein a plurality of ribs are provided on the surface of the cooling jacket.
  12. 　請求項１から請求項４のうちのいずれか１項記載のモータ装置を用いたアクチュエータと、ＥＧＲバルブと、を備え、
    　前記アクチュエータにより前記ＥＧＲバルブの開度が制御されるものである
    　ことを特徴とするＥＧＲバルブ装置。     An actuator using the motor device according to any one of claims 1 to 4 and an EGR valve are provided.
    An EGR valve device characterized in that the opening degree of the EGR valve is controlled by the actuator.
PCT/JP2019/027993 2019-07-17 2019-07-17 Motor device and egr valve device WO2021009859A1 (en)

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JP2010273423A (en) * 2009-05-20 2010-12-02 Honda Motor Co Ltd Electric motor
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JP2017085692A (en) 2015-10-23 2017-05-18 三菱電機株式会社 Inverter integrated rotating electric machine
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JPH06199139A (en) * 1992-10-01 1994-07-19 Hitachi Ltd Cooling system for electric vehicle and electric motor used for it
JPH08205477A (en) * 1995-01-31 1996-08-09 Hitachi Ltd Motor
JPH10341550A (en) * 1997-06-09 1998-12-22 Toshiba Corp Stator flame of rotating electric machine
JP2005224008A (en) * 2004-02-05 2005-08-18 Toyota Motor Corp Inverter device, inverter integrated type rotating electric machine and vehicle equipped with rotating machine
JP2006074853A (en) * 2004-08-31 2006-03-16 Mitsubishi Electric Corp Vehicle-mounted power converter
JP2008092797A (en) * 2006-10-04 2008-04-17 Robert Bosch Gmbh Converter motor and converter unit
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