WO2013069322A1 - 回転電機及び車両 - Google Patents
回転電機及び車両 Download PDFInfo
- Publication number
- WO2013069322A1 WO2013069322A1 PCT/JP2012/059925 JP2012059925W WO2013069322A1 WO 2013069322 A1 WO2013069322 A1 WO 2013069322A1 JP 2012059925 W JP2012059925 W JP 2012059925W WO 2013069322 A1 WO2013069322 A1 WO 2013069322A1
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- WIPO (PCT)
- Prior art keywords
- frame
- rotating electrical
- electrical machine
- mounting
- flange
- Prior art date
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Classifications
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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
- H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
- H02K5/225—Terminal boxes or connection arrangements
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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
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- 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
- H02K11/33—Drive circuits, e.g. power electronics
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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
Definitions
- the disclosed embodiment relates to a rotating electrical machine and a vehicle including the same.
- Rotating electrical machines are attached to other devices via mounting flanges.
- This mounting flange is generally formed integrally with the frame of the rotating electrical machine by casting.
- the rotating electrical machine has a wide variety of devices that can be attached depending on the intended use, and there are a wide variety of specifications and shapes of the counterpart device even in the same usage. For this reason, although it is necessary to change the shape of a mounting flange each time, since it forms integrally with a flame
- the present invention has been made in view of such problems, and an object thereof is to provide a rotating electrical machine capable of enhancing versatility and a vehicle including the same.
- a frame a stator provided on the inner periphery of the frame, a rotor facing the inner periphery of the stator via a gap,
- a rotating electrical machine is provided that is detachably provided on the frame and includes a mounting flange for mounting the rotating electrical machine to another device.
- a vehicle including the rotating electrical machine according to any one of claims 1 to 6 is applied.
- the versatility of the rotating electrical machine can be improved.
- FIG. 10 is a longitudinal sectional view taken along the line XX in FIG. 9.
- FIG. 10 is a longitudinal sectional view taken along a XI-XI section in FIG. 9. It is a perspective view of the rotary electric machine which shows the state which removed the attachment flange. It is a conceptual diagram of the vehicle carrying a rotary electric machine.
- the up-down direction, the front-rear direction, and the left-right direction correspond to the arrow directions shown as appropriate in each drawing. These directions are used for convenience of explanation, but are changed depending on the installation mode of the rotating electric machine, and the configuration is not limited.
- the rotating electrical machine 1 mainly includes a shaft 10, a rotor 11, a stator 12, a frame 13, a mounting flange 14, an anti-load side bracket 15, a resolver 16, and a first housing portion cover 17. , A second housing part cover 18, a winding switching circuit 20, and bearings 30 and 31.
- the rotating electrical machine 1 may be either an electric motor or a generator.
- the rotor 11 is made of, for example, a permanent magnet, and is provided on the outer periphery of the shaft 10.
- the inner periphery of the stator 12 faces the outer periphery of the rotor 11 via a gap, and the outer periphery of the stator 12 is fixed to the inner peripheral surface of the frame 13.
- a flow path 135 through which a coolant such as water flows is formed inside the frame 13, and the stator 12 can be cooled by the flow path 135.
- the stator 12 includes two sets of windings configured by winding three windings corresponding to each phase of the three-phase AC in parallel.
- three-phase alternating current is supplied to only one of these windings, since the impedance is low, a sufficient current can flow even in a high-frequency region, which is suitable for driving the rotating electrical machine 1 at high speed.
- two sets of windings are connected in series and three-phase alternating current is supplied to the whole, a sufficient voltage can be applied even in the low frequency region because of the high impedance, and rotation is performed for the same current.
- a large torque can be generated in the electric machine 1, which is suitable for driving at a low speed.
- the frame 13 is made of a casting formed by a casting method, and has a substantially bottomed cylindrical shape that integrally includes a load side bracket 130 on the front side (load side) and is open on the rear side (counter load side). is doing.
- a bearing 30 is provided inside the load side bracket 130.
- An anti-load side bracket 15, which is a separate body from the frame 13, is provided at an open portion on the rear side of the frame 13.
- a bearing 31 and a resolver 16 are provided inside the anti-load side bracket 15.
- a mounting flange 14 is detachably provided on the front side of the load side bracket 130 of the frame 13. Details of the mounting flange 14 will be described later.
- the frame 13 has a plurality of openings. Specifically, as shown in FIG. 4, an inflow port 136 for allowing the cooling liquid to flow in from the outside, an outflow port 137 for flowing the cooling liquid to the outside, and the power cable 122 (see FIG. 1 and the later-described FIG. 7) are formed with a cable port 138 for drawing out to the outside, and a circuit port 139 for drawing out circuit lines 204 (see FIG. 1 and FIG. 2) made up of signal lines and power lines. .
- FIG. 4 shows a state where the pipes 32 are connected to the inlet 136 and the outlet 137, respectively.
- the inlet 136, the outlet 137, the cable port 138, and the circuit port 139 are collectively referred to as “openings 136 to 139” as appropriate.
- the right side surface of the frame 13 has a portion 136 a having a shape corresponding to the inflow port 136, a portion 137 a having a shape corresponding to the outflow port 137, and a shape corresponding to the cable port 138.
- a portion 138a and a portion 139a corresponding to the circuit port 139 are formed.
- the portions 136 a and 137 a are openings having substantially the same shape as the inlet 136 and the outlet 137, and are both closed by the closing member 33.
- the said part 138a, 139a is formed as a protrusion part protruded from the surface of the flame
- the openings 136 to 139 and the portions 136a, 137a, 138a, and 139a having shapes corresponding to these openings are substantially symmetrical with respect to a cutting plane P that cuts the frame 13 in the axial direction. It is formed to become.
- the cut surface P is a cut surface when the frame 13 is cut in half in the vertical direction, and also includes the rotation axis O of the rotor 11 (shaft 10) as shown in FIG. That is, the frame 13 is formed in a shape (symmetrical shape) that is substantially symmetric with respect to the cut surface P.
- the openings 136 to 139 described above can be arranged on either the right side or the left side of the frame 13 without changing the mold.
- the cable port 138 and the circuit port 139 when the frame 13 is cast, protrusions are formed on both the left and right sides so as to be substantially symmetrical with respect to the cut surface P, and the protrusions on the side surfaces on the side to be used are formed.
- the opening By forming the opening, the arrangement of the cable port 138 and the circuit port 139 can be freely determined.
- inlet 136 and the outlet 137 when the frame 13 is cast, openings are formed on both sides so as to be substantially symmetric with respect to the cut surface P, and openings on the side that is not used are formed. By closing with the closing member 33, the arrangement of the inlet 136 and outlet 137 can be determined freely.
- two discharge ports 1361 are formed on the left and right side surfaces and two on the bottom surface below. These four discharge ports 1361 are openings for discharging the core forming the flow path 135, and these are also formed so as to be substantially symmetrical with respect to the cut surface P. All the discharge ports 1361 are closed by the closing member 34.
- a first housing part (circuit housing part) 131 that houses the winding switching circuit 20 is formed on the radial direction side (upper side) of the frame 13.
- the winding switching circuit 20 is a circuit that controls how the two sets of windings included in the stator 12 described above are connected and supplied to the three-phase AC power supplied from the outside.
- the first housing 131 is covered with a first housing cover 17 that can be attached to and detached from the frame 13.
- the first accommodating portion cover 17 is fixed to the frame 13 by fastening a plurality of edges (four in this example) with bolts 35.
- a second housing portion (winding housing portion) 132 is formed on the rear side (the antiload side) of the frame 13 with respect to the antiload side bracket 15.
- the second accommodating portion 132 accommodates electrical components such as the resolver 16, the winding cable connecting portion 121, the power cable 122, and the terminal block 123.
- the second housing portion 132 is covered with a second housing portion cover 18 that can be attached to and detached from the frame 13.
- the second accommodating portion cover 18 is fixed to the frame 13 by fastening a plurality of edges (four in this example) with bolts 36.
- the frame 13 is integrally formed by casting in such a shape having the first housing portion 131 and the second housing portion 132 on the outer circumferences on the radial direction side and the anti-load side, respectively. As shown in FIGS. 3 and 4, the first housing part 131 and the second housing part 132 are connected by an opening 134 formed by a bridge 133.
- the bridge 133 constitutes a part of the mounting surface of the first housing portion cover 17 and the second housing portion cover 18 and also serves as a beam that maintains the strength behind the frame 13.
- the winding switching circuit 20 includes circuit components (electrical components) such as an IGBT 201, a diode 202, a bus bar 203, a substrate 204, and a plurality of elements 205 mounted on the substrate 204.
- the diodes 202 are configured in two sets corresponding to the two sets of windings included in the stator 12 described above, and these two sets of diodes 202 are arranged in parallel in the left-right direction (see the drawings described later). 8A).
- the IGBT 201, the diode 202, the bus bar 203, and the like which are heat generating components, are attached to the outer peripheral surface of the frame 13 in the first housing part 131 and cooled by the flow path 135.
- the bus bar 203 connects the diode 202 and the connection part 121 of the winding cable of the stator 12, and is provided in the opening 134.
- the bus bar 203 has an insulating part around a copper bar (not shown) that generates heat, and is attached to the frame 13 through the insulating part.
- FIG. 7 shows the arrangement configuration of the electrical components in the second housing part 132.
- the frame 13 including the bridge 133 is not shown.
- the anti-load side bracket 15 can be attached to and detached from the frame 13, and is fixed to the frame 13 by fastening a plurality of outer edge portions (seven locations in this example) with bolts 37. .
- a shield plate 38 made of, for example, a magnetic material is provided at the center position of the anti-load side bracket 15 to protect the resolver 16 provided therein from noise.
- the terminal block 123 connects the power cable 122 through the cable port 138 and the winding cable connecting portion 124 of the stator 12 by fastening bolts and nuts.
- the power cable 122 is a cable through which a driving three-phase alternating current supplied from an external inverter (not shown) flows, and corresponds to each of the U, V, and W phases of the three-phase alternating current.
- the terminal block 123 has three attachment pieces 123a at both the left and right sides and the lower center position, and is formed in a symmetrical shape.
- the terminal block 123 is attached to the anti-load side bracket 15 by fastening two of the three attachment pieces 123 a with bolts 39.
- the power cable 122 is passed through a cable port 138 formed on the left side surface of the frame 13, and the terminal block 123 is cut as described above by fastening the left and lower attachment pieces 123 a with bolts 39. It is installed on the left side with respect to the plane P.
- the terminal block 123 is fixed to the cut surface P by fastening the right and lower attachment pieces 123 a of the terminal block 123 with the bolts 39.
- a bolt hole to which the bolt 39 is fastened is denoted by reference numeral 40.
- the anti-load side bracket 15 functions as a fixing member that can fix the terminal block 123 at two substantially symmetrical positions with respect to the cut surface P.
- the bus bar 203 is disposed above the anti-load side bracket 15.
- three on the right side (left side in the figure) are the high-speed cable connection parts 121 a and 3 on the left side (right side in the figure).
- Each connection part 121 is connected to the bus bar 203 by fastening bolts and nuts.
- the anti-load side bracket 15 has a plurality of openings 151 (four in this example) for inserting the winding cables, and the winding cables corresponding to the openings 151 are inserted. These openings 151 are also formed in a substantially symmetrical shape with respect to the cutting plane P. Thereby, even when the left and right arrangement of the terminal block 123 is changed, the winding cable of the connecting portion 124 is inserted into the opening 151 on the opposite side in the left and right direction without changing the anti-load side bracket 15. It is possible.
- the winding switching circuit 20 accommodated in the first accommodating portion 131 can be attached or maintained by only accessing from above the frame 13. Further, with respect to the terminal block 123 and the like accommodated in the second accommodating portion 132, it is possible to perform attachment work and wiring work only by accessing from the opposite side of the frame 13. Further, assembling work of the rotating electrical machine 1 including fixing of the stator 12 to the frame 13 and insertion of the shaft 10 can be performed only by accessing from the anti-load side of the frame 13 with the anti-load side bracket 15 removed. It can be carried out.
- the coolant flowing in from the inlet 136 first flows into the first flow path portion 135a of the flow path 135.
- the first flow path part 135 a is formed in the lower part of the first housing part 131, and the winding switching circuit 20 in which the inner circumference of the flow path faces the stator 12 and the outer circumference is housed in the first housing part 131. Opposite to.
- the first flow path part 135a is formed in a substantially U shape, and the IGBT 201 and the two sets of diodes 202 are arranged along the U-shaped first flow path part 135a in the first housing part 131.
- the coolant that has flowed through the first flow path portion 135a flows into the second flow path portion 135b via the communication portion 135c (see FIG. 8B and FIG. 11 described later).
- the second flow path portion 135b is formed to meander in a zigzag manner along the circumferential direction of the frame 13 so as to surround the stator 12 in the circumferential direction.
- the channel width and depth of the second channel part 135b are substantially constant, and the channel area is formed to be substantially constant. Further, the inner periphery faces the stator 12. As shown in FIG.
- the most downstream side of the second flow path portion 135b communicates with the outflow port 137, and the coolant that has flowed through the second flow path portion 135b flows out from the outflow port 137.
- the cooling liquid cools the winding switching circuit 20 and the stator 12 while flowing through the first flow path portion 135a, and cools the stator 12 while flowing through the second flow path portion 135b.
- the first flow path part 135a and the second flow path part 135b constituting the flow path 135 are formed so that the number of turns is relatively small while the flow path width is relatively large.
- the number of turns of the flow path 135 is once in each direction. It is formed to become. Thereby, channel resistance can be reduced and cooling efficiency can be kept favorable.
- a self-disintegrating core (not shown) formed by bonding sand using a predetermined bonding agent is used.
- This core is installed in a mold when the frame 13 is cast, and self-collapses when the temperature becomes high due to injection of molten metal.
- the core support portion is formed along the flow path 135 as an inlet 136, an outlet 137, portions 136a and 137a having shapes corresponding to these, and a plurality of outlets 1361, and collapses into a sand shape. The core is discharged from these openings.
- the first flow path portion 135a and the second flow are formed on the left side surface of the frame 13 where the inflow port 136 and the outflow port 137 are formed.
- the communication part 135c is not formed between the path part 135b and it is necessary to make it non-communication. That is, the left and right arrangement of the communication portion 135c is determined depending on whether the inflow port 136 and the outflow port 137 are formed on the left or right side of the frame 13. Therefore, in this embodiment, two types of cores corresponding to the arrangement of the inlet 136 and the outlet 137 are prepared, and the core is changed according to the arrangement without changing the mold. An optimum flow path 135 for the determined arrangement can be formed.
- the first flow path portion 135 a is formed so that the outer periphery 1351 (outer side) is a flat surface facing the winding switching circuit 20, and the inner periphery 1352 (inner side) is It is formed in a cylindrical shape, and at least a part of the inner periphery 1352 faces the stator 12.
- the planar outer perimeter 1351 and the cylindrical inner perimeter 1352 are closer to the cutting plane P described above, and are closest to each other in the vicinity of the cutting plane P.
- the first flow path portion 135a is the shallowest in the vicinity of the cut surface P, and has a shape in which the depth of the flow path increases as it approaches the left and right end portions of the frame 13.
- the inner periphery 1352 of the first flow path portion 135a is not necessarily cylindrical, and may be a flat surface that is gently inclined downward from the cut surface P toward the left and right sides, for example.
- the first flow path portion 135a is formed in a substantially U-shape that is bent in the vicinity of the cut surface P, which is a proximity portion where the outer periphery 1351 and the inner periphery 1352 are closest to each other.
- the flow path width W (flow path width seen from above) of the first flow path part 135a increases as it approaches the cut surface P, and is the maximum Wmax (> W) at the bent portion in the vicinity of the cut surface P. It is formed to become. This is because the first flow path part 135a is narrowed in the depth direction in the vicinity of the cut surface P due to its structure, and therefore the flow path width W is increased as it approaches the cut surface P. This is because by setting the maximum in the vicinity, the flow path area of the first flow path part 135a can be made substantially constant, and an increase in flow path resistance can be suppressed.
- the communication part 135 c communicates the first flow path part 135 a and the second flow path part 135 b behind the frame 13.
- the communication portion 135 c is formed in a cylindrical shape whose inner periphery 1353 is substantially concentric with the outer periphery of the stator 12, and the bottom portion is inclined closer to the right end portion of the frame 13, The depth of the will increase. As a result, the flow from the first flow path part 135a to the second flow path part 135b can be made smooth, and the cooling efficiency can be improved.
- Mounting flange 14 is a member for attachment to other devices (not shown) rotating electric machine 1. As shown in FIG. 12, the mounting flange 14 is configured to be detachable from the frame 13.
- the mounting flange 14 has a substantially annular shape in which a round hole 141 is formed at the center position, and also has a substantially trumpet shape that expands toward the front (the other device side) as shown in FIG. .
- Insertion holes 142 are provided at a plurality of locations (eight locations in this example) on the inner peripheral portion of the mounting flange 14, and the bolts 41 inserted through these are fastened to the bolt holes 1301 of the frame 13.
- the flange 14 is fixed to the frame 13. In FIG. 12, only two bolts 41 are shown for the purpose of preventing complications.
- the outer surface of the load side bracket 130 described above constitutes a flange mounting surface 1300 to which the mounting flange 14 is mounted.
- the flange mounting surface 1300 is a columnar projecting surface provided at the front side end of the frame 13, and the bolt hole 1301 for fixing the mounting flange 14 is expanded in a circular shape outward in the radial direction.
- the outlet 1302 is provided.
- the flange mounting surface 1300 is formed with a spigot joint 1303 that can be fitted into the round hole 141 of the mounting flange 14.
- the spigot joint portion 1303 is a circular protrusion centered on the rotation axis O of the shaft 10, and as shown in FIGS. 2 and 3, the spigot joint portion 1303 is connected to the mounting flange 14 by fitting with the round hole 141. . Accordingly, the mounting flange 14 can be easily positioned so as to be concentric with the shaft 10 with respect to the frame 13.
- pin holes 1304 and 143 into which the positioning pins 43 can be inserted are provided at corresponding positions of the flange mounting surface 1300 and the mounting flange 14, respectively.
- the positioning pin 43 positions the mounting flange 14 in the rotation direction. In the example shown in FIG. 12, only one positioning pin 43 is used, but pin holes 1304 and 143 may be provided at a plurality of locations and positioned by a plurality of positioning pins 43.
- mounting holes 144 are provided at a plurality of locations (eight positions in this example) on the outer peripheral portion of the mounting flange 14.
- mounting bolts (not shown) for mounting the mounting flange 14 to other devices are inserted from the rear toward the front and fastened to the bolt holes of the other devices.
- the rotary electric machine 1 is fixed to another apparatus.
- at least a part of these mounting holes 144 (in this example, six mounting holes 144 excluding the upper two mounting holes 144) are located on the rear side (anti-load side) of the frame 13. ) And is arranged outside the frame 13.
- the recessed part 1305 is formed in the front upper part of the flame
- the mounting flange 14 for mounting the rotating electrical machine 1 to another device can be attached to and detached from the frame 13.
- the rotary electric machine 1 can be attached to various apparatuses by changing the attachment flange 14 according to the shape of the other apparatus which is an attachment destination. Therefore, the rotating electrical machine 1 (frame 13) can be shared, and versatility can be improved.
- the mold manufacturing can be simplified, and the cost can be reduced and the manufacturing period can be shortened.
- the spigot joint 1303 formed on the flange mounting surface 1300 and the round hole 141 of the mounting flange 14 are spliced together.
- the mounting flange 14 can be easily positioned so as to be concentric with the shaft 10 with respect to the frame 13. Therefore, the positioning work of the mounting flange 14 becomes unnecessary and workability can be improved.
- the contact surface between the mounting flange 14 and the frame 13 is shown in FIG. Since the cross section is L-shaped, the contact area can be increased. As a result, the surface pressure acting on the joint between the mounting flange 14 and the frame 13 due to the weight of the rotating electrical machine 1 can be reduced, and the strength reliability can be improved.
- the mounting flange 14 can be positioned in the rotational direction by inserting the positioning pins 43 into the pin holes 1304 and 143 provided at the corresponding positions of the flange mounting surface 1300 and the mounting flange 14. it can.
- the area of the mounting surface can be increased by having the flange mounting surface 1300 having the bulging portion 1302 that swells outward in the radial direction.
- the surface pressure which acts on the flange mounting surface 1300 can be lowered, and the strength reliability can be further improved.
- the flange mounting surface 1300 has the bolt hole 1301 in the bulging part 1302, the thickness of the said bolt hole 1301 and a flame
- the mounting flange 14 has a substantially trumpet shape that expands toward another device, so that a large joint area with the other device can be obtained, and the mounting stability of the rotating electrical machine 1 can be improved.
- both the stator 12 and the winding switching circuit 20 are cooled by the flow path 135 formed in the frame 13.
- pipes, hoses, and the like for connecting the flow paths can be reduced, and the structure can be simplified, compared to the case where the flow paths are separately provided for the winding switching circuit 20 and the stator 12. can do.
- the flow path 135 can be shortened, the pressure loss in the flow path 135 can be reduced.
- the first accommodating portion 131 is formed in the frame 13 and the winding switching circuit 20 is accommodated therein, the frame for the winding switching circuit 20 and the frame 13 are separate from each other. The structure can be simplified.
- the flow path 135 is disposed between the winding switching circuit 20 and the stator 12, the influence of heat from the stator 12 can be suppressed on the winding switching circuit 20.
- the bus bar 203 connects the diode 202 and the connection part 121 of the winding cable of the stator 12.
- terminal blocks and the like can be reduced.
- the bus bar 203 can be brought into close contact with the frame 13 through the insulating portion of the bus bar 203, the bus bar 203 can be easily cooled.
- the first housing part 131 is disposed on the upper surface of the rotating electrical machine 1
- the second housing part 132 is disposed on the anti-load side (anti-attachment side) of the rotating electrical machine 1.
- the 1st accommodating part cover 17 and the 2nd accommodating part cover 18 are each provided so that attachment or detachment is possible. For this reason, the wiring switching circuit 20, the connection part 121, and the power cable 122 can be easily wired and maintained. In addition, access from the second housing cover 18 to the inside of the rotating electrical machine 1 is also possible.
- the frame 13 is formed to be substantially symmetrical. Accordingly, it is possible to freely determine whether the inlet 136, the outlet 137, the cable port 138, and the circuit port 139 are arranged on the left side or the right side of the rotating electrical machine 1, and the frame 13 is made common. can do.
- the winding switching circuit 20 is accommodated in the first accommodating portion 131, but other circuits such as an inverter may be accommodated.
- the coolant flows from the first flow path portion 135a to the second flow path portion 135b, but conversely, it may flow from the second flow path portion 135b to the first flow path portion 135a. Good.
- the coolant may be introduced from the outlet 137 and out of the inlet 136.
- the vehicle C is, for example, an electric vehicle or a hybrid vehicle.
- a rotating electrical machine for a vehicle has different specifications required depending on the vehicle on which it is mounted, and thus a frame is manufactured each time.
- the rotating electrical machine 1 can be attached to the vehicle without changing the frame 13 simply by exchanging them. That is, the vehicular rotating electrical machine 1 can be made common and used as a general-purpose product.
- the vehicle in which the rotating electrical machine 1 is used may be a construction machine or the like.
- the present invention can be applied to, for example, a ship, an aircraft, and the like.
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- Motor Or Generator Frames (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
まず、本実施形態に係る回転電機1の概略構成について説明する。図1~図3に示すように、回転電機1は、主として、シャフト10、回転子11、固定子12、フレーム13、取付フランジ14、反負荷側ブラケット15、レゾルバ16、第1収容部カバー17、第2収容部カバー18、巻線切替回路20、軸受30,31を備える。なお、回転電機1は、電動機もしくは発電機のいずれであってもよい。
次に、フレーム13の左右対称構造について説明する。図4及び図5に示すように、フレーム13には複数の開口が形成されている。具体的には、図4に示すように、フレーム13の左側面に、冷却液を外部から流入させるための流入口136、冷却液を外部へ流出させるための流出口137、動力ケーブル122(図1及び後述の図7参照)を外部へ引き出すためのケーブル口138、信号線や電源線からなる回路線204(図1及び図2参照)を外部へ引き出すための回路口139が形成されている。なお、図4では流入口136及び流出口137にそれぞれ配管32を接続した状態を示している。また、以下適宜、流入口136、流出口137、ケーブル口138及び回路口139を、「開口136~139」と総称する。
次に、フレーム13の収容部の構造について説明する。図3及び図4に示すように、フレーム13の径方向側(上側)には、巻線切替回路20を収容する第1収容部(回路収容部)131が形成される。巻線切替回路20は、外部から供給された3相交流電力に対して前述した固定子12が備える2組の巻線をどのように接続して供給するかを制御する回路である。図1及び図2に示すように、第1収容部131は、フレーム13に対し着脱可能な第1収容部カバー17により覆われている。第1収容部カバー17は、縁部の複数箇所(この例では4カ所)をボルト35で締結することによりフレーム13に固定される。
次に、フレーム13の流路135の構造について説明する。前述したように、流路135は図示しない中子を用いた鋳造によりフレーム13の内部に一体的に形成されている。流路135による冷却液の流れを図8A~図8Dに太矢印で示す。
次に、取付フランジ14の構造について説明する。取付フランジ14は、回転電機1を図示しない他装置に取り付けるための部材である。図12に示すように、取付フランジ14は、フレーム13に対し着脱可能に構成される。取付フランジ14は、中央位置に丸穴141が形成された略円環形状であると共に、図3にも示すように、前方(他装置側)に向けて拡開する略ラッパ状の形状を有する。取付フランジ14の内周部の複数箇所(この例では8カ所)には挿通孔142が設けられており、これらに挿通させたボルト41をそれぞれフレーム13のボルト穴1301に締結することにより、取付フランジ14はフレーム13に固定される。なお、図12では煩雑防止のため2本のボルト41のみ図示している。
以上のように、本実施形態に係る回転電機1によれば、当該回転電機1を他の装置に取り付けるための取付フランジ14がフレーム13に着脱可能である。これにより、取付フランジ14を取付先である他装置の形状に応じて変更することで、回転電機1を多種多様な装置に取り付けることができる。したがって、回転電機1(フレーム13)を共通化することができ、汎用性を高めることができる。また、フレーム13用の鋳型を変更することなく、取付フランジ14用の鋳型のみを変更すればよいので、鋳型製作を簡略化でき、コストの低減や製作期間の短縮を図ることができる。
以上、一実施形態について説明した。ただし、いわゆる当業者であれば、本実施形態の趣旨を逸脱しない範囲内で、上記実施形態から適宜変更が可能であり、また、上記実施形態と変形例による手法を適宜組み合わせて利用することも可能である。すなわち、このような変更等が施された技術であっても、本実施形態の技術的範囲に含まれることは言うまでもない。
10 シャフト
11 回転子
12 固定子
13 フレーム(回転電機用フレーム)
14 取付フランジ
15 反負荷側ブラケット(固定部材)
16 レゾルバ(電気部品)
17 第1収容部カバー(カバー)
18 第2収容部カバー(カバー)
20 巻線切替回路
30 軸受
31 軸受
43 位置決めピン
121 接続部(電気部品)
122 動力ケーブル(電気部品)
123 端子台(電気部品)
130 負荷側ブラケット
131 第1収容部(回路収容部)
132 第2収容部(巻線収容部)
134 開口
135 流路
135a 第1流路部
135b 第2流路部
136 流入口(開口)
136a 流入口に相当する形状を有する部分(開口に相当する形状を有する部分)
137 流出口(開口)
137a 流出口に相当する形状を有する部分(開口に相当する形状を有する部分)
138 ケーブル口(開口)
138a ケーブル口に相当する形状を有する部分(開口に相当する形状を有する部分)
139 回路口(開口)
139a 回路口に相当する形状を有する部分(開口に相当する形状を有する部分)
141 丸穴
143 ピン用穴
144 取付孔(取付部)
201 IGBT(回路部品、電気部品)
202 ダイオード(回路部品、電気部品)
203 ブスバ(回路部品、電気部品)
204 基板(回路部品、電気部品)
205 素子(回路部品、電気部品)
1300 フランジ取付面
1301 ボルト穴
1302 膨出部
1303 インロー結合部
1304 ピン用穴
1351 外周(外側)
1352 内周(内側)
C 車両
O 回転軸
P 切断面
Claims (7)
- フレームと、
前記フレームの内周に設けられた固定子と、
前記固定子の内周と空隙を介して対向する回転子と、
前記フレームに着脱可能に設けられ、回転電機を他装置に取り付けるための取付フランジと、を備える
ことを特徴とする回転電機。 - 前記フレームは、
前記取付フランジが取り付けられるフランジ取付面を有し、
前記フランジ取付面には、
前記取付フランジにインロー結合するインロー結合部が形成されている
ことを特徴とする請求項1に記載の回転電機。 - 前記取付フランジは、
中心位置に丸穴が形成された略円環形状を有し、
前記インロー結合部は、
前記取付フランジの前記丸穴にはめ合うことが可能な、シャフトの回転軸を中心とする円状の突出部である
ことを特徴とする請求項2記載の回転電機。 - 前記フランジ取付面及び前記取付フランジの対応する位置に、
位置決めピンを挿入可能なピン用穴が少なくとも1箇所に設けられている
ことを特徴とする請求項2又は3記載の回転電機。 - 前記フランジ取付面は、
前記フレームの負荷側端部に設けられた円柱状の突出面であり、前記取付フランジを前記フレームに固定するためのボルト穴を、半径方向外側に膨らんだ膨出部に有している
ことを特徴とする請求項2乃至4のいずれか1項に記載の回転電機。 - 前記取付フランジは、
前記他装置に向けて拡開する略ラッパ状の形状を有し、
当該取付フランジを前記他装置に取り付けるための取付部が、前記フレーム側から見て当該フレームの外側に配置されるように形成されている
ことを特徴とする請求項1乃至5のいずれか1項に記載の回転電機。 - 請求項1乃至6のいずれか1項に記載の回転電機を備える
ことを特徴とする車両。
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JPWO2013069322A1 (ja) | 2015-04-02 |
CN204013085U (zh) | 2014-12-10 |
CN204013086U (zh) | 2014-12-10 |
CN204013013U (zh) | 2014-12-10 |
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JP5831768B2 (ja) | 2015-12-09 |
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