WO2014061073A1 - 結線板の固定構造、固定方法、および、回転電機 - Google Patents
結線板の固定構造、固定方法、および、回転電機 Download PDFInfo
- Publication number
- WO2014061073A1 WO2014061073A1 PCT/JP2012/076595 JP2012076595W WO2014061073A1 WO 2014061073 A1 WO2014061073 A1 WO 2014061073A1 JP 2012076595 W JP2012076595 W JP 2012076595W WO 2014061073 A1 WO2014061073 A1 WO 2014061073A1
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- WO
- WIPO (PCT)
- Prior art keywords
- connection plate
- sheet metal
- metal member
- frame
- fixing
- 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
- H02K3/00—Details of windings
- H02K3/46—Fastening of windings on the stator or rotor structure
- H02K3/50—Fastening of winding heads, equalising connectors, or connections thereto
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G5/00—Installations of bus-bars
- H02G5/06—Totally-enclosed installations, e.g. in metal casings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2203/00—Specific aspects not provided for in the other groups of this subclass relating to the windings
- H02K2203/09—Machines characterised by wiring elements other than wires, e.g. bus rings, for connecting the winding terminations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
Definitions
- the present invention relates to a connection plate fixing structure, a fixing method, and a rotating electric machine, and more particularly to a connection plate fixing structure, a fixing method, and a rotation using the same used as a structural component for distributing current to a coil in a rotating electric machine. It relates to electric machinery.
- connection plate When fixing a connection plate in a rotating electrical machine, conventionally, for example, as described in Patent Document 1, grooves are provided in the holder of the connection plate, a bus bar is inserted into each groove, and the bus bar is fixed in the radial direction.
- the connection board was fixed.
- the insulating member which ensures the insulation between a coil and a stator core and the holder of the connection board were fitted, and the connection board was fixed.
- stator core and the connection plate are fixed by performing the insert molding, a large molding machine for performing the insert molding is required, which causes a problem that the mass productivity is lowered.
- the present invention has been made in order to solve such a problem, and does not require a large facility, suppresses stress on the welded portion, and can hold the connection plate even when an impact load is applied.
- An object of the present invention is to obtain a connection plate fixing structure, a fixing method, and a rotating electrical machine using the same.
- the present invention is a connection plate fixing structure for fixing a connection plate composed of a bus bar formed in an annular shape and a holder for holding the bus bar, and is a cylindrical structure that accommodates the connection plate therein.
- a frame and a sheet metal member for fixing the connection plate wherein one end of the sheet metal member is fixed to an outer peripheral portion of the frame, and the other end of the sheet metal member faces the connection plate in the frame.
- the movable plate is extended to hold the end surface of the connection plate in the axial direction of the frame to fix the connection plate.
- connection plate fixing structure for fixing a connection plate composed of a bus bar formed in an annular shape and a holder for holding the bus bar, and is a cylindrical structure that accommodates the connection plate therein.
- connection plate In the movable end extended, the end face of the connection plate is pressed in the axial direction of the frame, and the connection plate is fixed, so that due to the elasticity of the sheet metal member, Since the connection plate is fixed, a large facility is not required, the stress on the welded portion is suppressed, and the connection plate can be held even when an impact load is applied.
- FIGS. 1A and 1B are a cross-sectional view and a perspective view showing a connection plate fixing structure and a configuration of a rotating electrical machine according to Embodiment 1 of the present invention.
- 1A shows only the left half of the rotating electrical machine, and the right half of the rotating electrical machine is omitted.
- the dashed-dotted line of Fig.1 (a) is made into an axis of symmetry, and the left half and right half of a rotary electric machine have a line-symmetric structure.
- the rotating electrical machine includes a columnar rotor 1 that is rotatably provided, and a cylindrical stator 2 that is disposed outside the rotor 1.
- the outer peripheral surface of the rotor 1 and the inner peripheral surface of the stator 2 are opposed to each other with a predetermined gap.
- the rotor 1 is fixed to the shaft 3.
- the shaft 3 passes through the center of the rotor 1.
- a plurality of permanent magnets (not shown) are embedded at equal intervals in the circumferential direction inside the outer peripheral portion of the rotor 1. Both ends of the shaft 3 are rotatably supported by bearing members (not shown) such as bearings. As the shaft 3 rotates, the rotor 1 rotates.
- the axial direction of the rotor 1 that is, the longitudinal direction of the shaft 3 and the central axial direction of the cylindrical stator 2 are referred to as “axial direction”, and the direction orthogonal to the “axial direction” is referred to as “diameter”.
- the stator 2 is fitted to the frame 5.
- the frame 5 has a cylindrical shape and has a flange 4 (outer peripheral portion) at one end.
- the flange 4 is formed in an annular shape and protrudes radially outward from the outer periphery of the frame 5.
- the flange 4 and the frame 5 are integrally molded.
- the inside of the cylindrical frame 5 is hollow.
- the rotor 1, the stator 2, the bus bar 9, the connection plate holder 10, and the connection plate cover 11 are accommodated in the cavity.
- the end face of the connection plate cover 11 protrudes outward from the position of the flange 4 of the frame 5.
- the flange 4 is fastened to the aluminum frame 6 (housing) with bolts 14.
- the frame 5 and the aluminum frame 6 constitute an outer frame of the rotating electrical machine. Therefore, the frame 5 and the aluminum frame 6 are collectively referred to as outer frames 5 and 6.
- the stator 2 includes a stator core 7, a coil 8, a bus bar 9, a connection plate holder 10, a connection plate cover 11, and a sheet metal member 12.
- the stator core 7 is formed in a cylindrical shape. On the inner peripheral side of the stator core 7, a plurality of teeth (not shown) are provided so as to protrude in the circumferential direction.
- the coil 8 is inserted into a slot (not shown) formed between the teeth of the stator core 7 and wound around one or more teeth.
- the bus bar 9 is electrically connected to one end of the coil 8.
- the bus bar 9 is formed by concentrically arranging a plurality of bus bar members formed in an annular shape in the radial direction.
- the connection plate holder 10 accommodates the bus bar 9 therein.
- connection plate 9 and the connection plate holder 10 constitute a “connection plate”.
- the connection board cover 11 is formed in an annular shape. As shown in FIG. 1A, the connection plate cover 11 has a substantially U-shaped cross section. The connection plate cover 11 is provided so as to cover the connection plate holder 10 by inserting the connection plate holder 10 and the bus bar 9 therein.
- the connection board cover 11 is made of an insulating material such as a resin made of PPS or nylon.
- the connection board cover 11 has insulation and ensures insulation between the bus bar 9 and the outside environment.
- the sheet metal member 12 is made of a metal having flexibility and / or elasticity. In FIG. 1B, eight sheet metal members 12 are provided. However, an arbitrary number of sheet metal members 12 may be provided. However, since the sheet metal member 12 is provided for pressing and fixing the connection plate cover 11, at least two sheet metal members are provided.
- the sheet metal members 12 are desirably arranged at equal intervals in the circumferential direction. As shown in FIG. 1B, the sheet metal member 12 is formed in a substantially rectangular elongated plate shape. One end of the sheet metal member 12 is fixed to the flange 4 of the frame 5 by bolts 14 as shown in FIG. Therefore, the bolt 14 fastens the flange 4, the sheet metal member 12, and the aluminum frame 6 at the same time.
- the other end of the sheet metal member 12 extends in the radial direction toward the inside of the frame 5.
- the other end of the sheet metal member 12 is not fixed and is a movable end.
- the other end of the sheet metal member 12 presses the connection plate holder 10 and the connection plate cover 11 against the stator core 7.
- the sheet metal member 12 is bent in accordance with the positional shift between the end surface of the flange 4 and the end surface of the connection plate cover 11. As shown in FIG. 1A, the sheet metal member 12 is bent at two locations such as a valley fold at approximately 90 ° and then a mountain fold at approximately 90 ° so as to be stepped. .
- the bending angle is not limited to 90 °, and may be any angle.
- connection plate composed of the connection plate holder 10 and the bus bar 9 is pressed in the axial direction against the end surface of the stator core 7 by the elastic force of the spring of the sheet metal member 12, thereby “ The "connection board” is fixed.
- a sheet metal member having one end held against the outer peripheral portion of the outer frames 5 and 6 and the other end extending in the radial direction and having a force to press the shaft end of the connection plate cover 11. 12 was used.
- the distance between the fulcrum and the working point of the sheet metal member 12 can be made sufficiently long in a limited space, so that the sheet metal member 12 does not yield and absorbs the above tolerance variation.
- the necessary pressing force can be ensured.
- connection plate holder 10 is in contact with the teeth (not shown) of the stator core 7 around which the coil 8 is wound in the vicinity of the end surface of the connection plate holder 10 on the stator core 7 side (FIG. 1 ( a), see FIG. Therefore, the movement of the connection plate holder 10 in the radial direction is restricted by the teeth, and the connection plate holder 10 is more firmly fixed.
- the sheet metal member 12 is made of metal as described above.
- the sheet metal member 12 can secure insulation between the sheet metal member 12 and the bus bar 9 by pressing the bus bar 9 through the connection plate cover 11 having insulating properties.
- the connection board cover 11 is ring-shaped, the pressing force by the sheet metal member 12 can be equalized, and the number of sheet metal members 12 can be reduced.
- the connection plate holder 10, the bus bar 9, and the connection plate cover 11 are fixed using the sheet metal member 12, no load is applied to the welded portion between the coil 8 and the bus bar 9.
- the portion A shown in FIG. 1 is extracted and shown in FIG. A hole for inserting the bolt 14 is formed in the sheet metal member 12.
- burring is performed around the hole to form the burring portion 13.
- the burring process is to perform a rising process around the hole to form a rising part (burring part 13).
- a processing method generally, a pilot hole is extracted by punching, and then a rising process is performed according to the plate thickness.
- the hole for inserting the bolt 14 is also formed in the flange 4 of the frame 5.
- the burring portion 13 of the sheet metal member 12 is press-fitted into the hole of the flange 4 to fix the sheet metal member 12.
- the size of the outer diameter of the burring portion 13 is the same as or slightly smaller than the inner diameter of the hole of the flange 4. Therefore, when the burring portion 13 of the sheet metal member 12 is press-fitted into the hole of the flange 4, the sheet metal member 12 is fixed. Thereby, parts are completed by the frame 5 and the stator 2, and it becomes easy to ship the stator 2 and the rotor 1 separately.
- connection plate fixing method will be briefly described. First, the connection plate is accommodated in the frame 5. Next, a sheet metal member 5 composed of a flat plate is prepared, and one end of the sheet metal member 5 is connected to the frame 5. It fixes to the flange 4, the other end of the sheet-metal member 5 is extended toward the connection board in the frame 5, the end face of the connection board is pressed in the axial direction of the frame 5 by the other end, and the connection board is fixed. The wiring board is fixed by such a procedure.
- connection plate including the bus bar 9 formed in an annular shape and the holder 10 that holds the bus bar 9
- one end of the sheet metal member 12 is the outer peripheral portion of the frame 5. Since the other end of the sheet metal member 12 is fixed to the flange 4 and extends in the radial direction, the shaft end of the connection plate is pressed in the axial direction, and the connection plate is mechanically fixed. The connection board can be held even when it is applied. Thereby, generation
- connection plate is pressed in the axial direction by the elastic force of the sheet metal member 12, it is possible to absorb the tolerance variation of the parts and fix the connection plate. Moreover, since the elastic force of the sheet metal member 12 is used, the larger the displacement of the connection plate, the more the pressure can be suppressed.
- FIG. FIG. 3 is a cross-sectional view showing the connection plate fixing structure and the configuration of the rotating electrical machine according to the second embodiment. Since the entire configuration of the rotating electrical machine according to the second embodiment is the same as the configuration shown in the first embodiment, the description thereof is omitted here.
- the difference between FIG. 3 and FIG. 2 is that a caulking portion 15 is provided at one end of the sheet metal member 12 in FIG.
- the caulking portion 15 is formed in a claw shape and protrudes from the sheet metal member 12.
- the caulking portion 15 may be formed by bending the sheet metal member 12, or may be formed by protruding a part of the sheet metal member 12. Since other configurations are the same as those in the first embodiment, description thereof is omitted here.
- crimping is a method of fixing parts using plastic deformation of metal. That is, it is a method of firmly fastening the joint portion by deforming the claws or metal fittings by hitting or tightening the claws or metal fittings (rivets) fitted in the joint portions with a tool such as pliers. Examples of the deformation include crushing, spreading, folding and crushing, and bending and twisting.
- the caulking portion 15 is driven into the connection plate cover 11 with a tool while the caulking portion 15 is in contact with the connection plate cover 11.
- the connection plate cover 11 is also deformed together with the caulking portion 15, whereby the caulking portion 15 and the connection plate cover 11 are firmly joined.
- the sheet metal member 12 is caulked and fixed to the connection plate cover 11 by the caulking portion 15. Thereby, it is possible to firmly fix the connection plate also in the circumferential direction.
- the sheet metal member 12 is shown to be in contact with the connection plate cover 11 only at the caulking portion 15, but not limited to this case, the caulking portion 15 is connected to the connection plate cover 11.
- the sheet metal member 12 may be in contact with the connection plate cover 11 as shown in FIG.
- connection plate holder 10, the bus bar 9, and the connection plate cover 11 are pressed and fixed using the elastic force of the sheet metal member 12.
- the connection plate is moved in the circumferential direction. In addition, it is possible to fix firmly.
- the sheet metal member 12 is not provided with the burring portion 13 (see FIG. 2), but the burring portion 13 may also be provided in the present embodiment, and in that case, a stronger connection is achieved.
- the plate can be fixed.
- FIG. 4 is a cross-sectional view showing the connection plate fixing structure and the configuration of the rotating electrical machine according to the third embodiment. Since the entire configuration of the rotating electrical machine according to the third embodiment is the same as the configuration shown in the first embodiment, the description thereof is omitted here. The difference between FIG. 4 and FIG. 2 is that, in FIG. 2, the burring portion 13 protrudes toward the flange 4 side, but in FIG. 4, the burring portion 13A protrudes toward the aluminum frame 6 side. It is a point that has been. Since other configurations are the same as those in the first embodiment, description thereof is omitted here.
- the aluminum frame 6 is also formed with holes for inserting the bolts 14. As shown in FIG. 4, the burring portion 13 ⁇ / b> A of the sheet metal member 12 is press-fitted into the hole of the aluminum frame 6 to fix the sheet metal member 12.
- the outer diameter of the burring portion 13A is the same as or slightly smaller than the inner diameter of the hole in the aluminum frame 6. Therefore, when the burring portion 13A of the sheet metal member 12 is press-fitted into the hole of the aluminum frame 6, the sheet metal member 12 is fixed. Further, the flange 4 of the frame 5, the sheet metal member 12, and the aluminum frame 6 are fastened by bolts 14. Thereby, parts are completed by the aluminum frame 6, the frame 5, and the stator 2, and it becomes easy to ship the stator 2 and the rotor 1 separately.
- connection plate holder 10, the bus bar 9, and the connection plate cover 11 are pressed and fixed using the elastic force of the sheet metal member 12.
- a burring portion 13A is provided on the sheet metal member 12, and the burring portion 13A is press-fitted into the aluminum frame 6 and fixed.
- the sheet metal member 12 and the aluminum frame 6 can be more firmly fixed. This embodiment is also effective when the frame 5 is thin.
- FIG. 5 is a cross-sectional view showing the connection plate fixing structure and the configuration of the rotating electrical machine according to the fourth embodiment. Since the entire configuration of the rotating electrical machine according to the fourth embodiment is the same as the configuration shown in the first embodiment, description thereof is omitted here.
- the difference between FIG. 5 and FIG. 1 is that the sheet metal member 12 is fixed to the stator core 7 in FIG.
- the shape of the sheet metal member 12 is also different from that of FIG.
- the flange 4 of the frame 5, the sheet metal member 12, and the aluminum frame 6 are simultaneously fastened by one bolt 14, but this embodiment is not shown in FIG. 5.
- FIG. 6 the flange 4 of the frame 5 and the aluminum frame 6 are directly fastened with one bolt without the sheet metal member 12 interposed (for example, see FIG. 6). Since other configurations are the same as those in the first embodiment, description thereof is omitted here.
- the sheet metal member 12 is formed in a substantially U shape, and one end is fixed to the stator core 7.
- the fixing method may be welding or fastening with bolts.
- the connection plate holder 10, the bus bar 9, and the connection plate cover 11 are disposed inside the substantially U-shaped sheet metal member 12. Then, the other end of the sheet metal member 12 is brought into contact with the end face of the connection plate cover 11 as shown in FIG. Thus, the sheet metal member 12 presses the axial end of the connection plate made of the connection plate holder 10 and the bus bar 9 in the axial direction, and fixes the connection plate.
- the sheet metal member 12 is folded at approximately 90 °, again at approximately 90 °, and again at approximately 90 ° so as to be substantially U-shaped. It is bent at the point.
- the position to be bent is appropriately determined according to the size of the connection plate holder 10 and the connection plate cover 11.
- the bending angle is not limited to 90 °, and may be an arbitrary angle. Since the sheet metal member 12 is bent in this way, it has a function of a leaf spring. Therefore, the shaft end of the connection plate is pressed against the end surface of the stator core 7 by the elastic force of the sheet metal member 12 in the axial direction, thereby fixing the “connection plate”.
- connection plate holder 10 is in contact with teeth (not shown) of the stator core 7 around which the coil 8 is wound (FIG. 1A, FIG. 2 (a)). Therefore, the movement of the connection plate holder 10 in the radial direction is restricted by the teeth, and the connection plate holder 10 is more firmly fixed. Thereby, since the fixing structure is completed with one tooth of the stator core 7, the influence with other parts can be ignored. Moreover, since the tolerance regarding the distance between the frame 5 having the flange 4 and the end face of the stator core 7 does not need to be considered among the above-described component tolerances, the tolerance variation can be reduced accordingly.
- connection plate holder 10, the bus bar 9, and the connection plate cover 11 are pressed and fixed using the elastic force of the sheet metal member 12.
- the sheet metal member 12 is fixed to the stator core 7 and the fixing structure is completed with one tooth of the stator core 7. The impact can be ignored. Moreover, it is not necessary to consider the tolerance regarding the distance between the flame
- FIG. FIG. 6 is a cross-sectional view showing the connection plate fixing structure and the configuration of the rotating electrical machine according to the fifth embodiment. Since the entire configuration of the rotating electrical machine according to the fifth embodiment is the same as the configuration shown in the first embodiment, the description thereof is omitted here. 6 differs from FIG. 1 in that the sheet metal member 12 is screwed to the aluminum frame 6 with bolts 16 in FIG. In FIG. 1, the flange 4 of the frame 5, the sheet metal member 12, and the aluminum frame 6 are simultaneously fastened by one bolt 14. However, in FIG. 6, the flange 4 of the frame 5 and the aluminum frame 6 is fastened with a bolt 14. Since other configurations are the same as those in the first embodiment, description thereof is omitted here.
- one end of the sheet metal member 12 is screwed to the aluminum frame 6 with a bolt 16.
- the sheet metal member 12 is formed in a substantially rectangular elongated plate shape. Unlike Embodiment 1, etc., the sheet metal member 12 of the present embodiment is not bent and is in a flat plate state. Further, the other end of the sheet metal member 12 is extended in the radial direction and presses the connection plate holder 10 and the connection plate cover 11 against the stator core 7. Also in the present embodiment, since one end of the sheet metal member 12 is fixed and the other end is a movable end, the sheet metal member 12 has a function of a plate spring. Accordingly, also in the present embodiment, the connection plate holder 10, the bus bar 9, and the connection plate cover 11 can be pressed and fixed in the axial direction by using the elastic force of the sheet metal member 12.
- connection plate holder 10, the bus bar 9, and the connection plate cover 11 are pressed and fixed using the elastic force of the sheet metal member 12.
- the sheet metal member 12 is screwed to the aluminum frame 6 with the bolts 16 in the present embodiment. Since it can be used without bending, the amount of tolerance stacking is reduced.
- FIG. 7 is a cross-sectional view showing the connection plate fixing structure and the configuration of the rotating electrical machine according to the sixth embodiment. Since the entire configuration of the rotating electrical machine according to the sixth embodiment is the same as the configuration shown in the first embodiment, the description thereof is omitted here.
- the difference between FIG. 7 and FIG. 1B is that the sheet metal member 12 is fixed in the radial direction in FIG. 1B, but the sheet metal member 12 is inclined in the radial direction in FIG. The point that is fixed to. Since other configurations are the same as those in the first embodiment, description thereof is omitted here.
- the sheet metal member 12 is fixed in a direction inclined by a predetermined angle from the radial direction.
- the predetermined angle may be determined as appropriate, but is preferably determined in the range of 15 ° to 85 ° with respect to the radial direction.
- the length of the sheet metal member 12 is longer than the length of the sheet metal member 12 of the first embodiment.
- the load point of the sheet metal member 12 is the end on the connection plate cover 11 side and the start point of the sheet metal member 12 is the end on the bolt 14 side, the distance from the load point to the fulcrum can be increased, so the same displacement Even in the case of handling, the stress generated in the sheet metal member 12 can be reduced.
- connection plate holder 10, the bus bar 9, and the connection plate cover 11 are pressed and fixed using the elastic force of the sheet metal member 12.
- the sheet metal member 12 is inclined at a predetermined angle, so that the distance from the load point to the fulcrum of the sheet metal member 12 is increased. Therefore, even when the same displacement is handled, the stress generated in the sheet metal member 12 can be reduced.
- FIG. FIG. 8 is a cross-sectional view showing the connection plate fixing structure and the configuration of the rotating electrical machine according to the seventh embodiment. Since the entire configuration of the rotating electrical machine according to the seventh embodiment is the same as the configuration shown in the first embodiment, the description thereof is omitted here.
- the difference between FIG. 8 and FIG. 1A is that, in FIG. 1A, the sheet metal member 12 is fixed to the flange 4 of the frame 5 with the bolts 14, but in FIG. 8, the sheet metal member 12 is fixed.
- the method and fixing position are different. Since other configurations are the same as those in the first embodiment, description thereof is omitted here.
- one end of the sheet metal member 12 is press-fitted and fixed to the frame 5 or is fixed by welding.
- the one end of the sheet metal member 12 is fixed to the main body portion of the frame 5 instead of the flange 4.
- the sheet metal member 12 is formed in a substantially rectangular elongated plate shape. Unlike the first embodiment, the sheet metal member 12 of the present embodiment is not bent and is in a flat plate state. Further, the other end of the sheet metal member 12 is extended in the radial direction and presses the connection plate holder 10 and the connection plate cover 11 against the stator core 7.
- the sheet metal member 12 can be used without being bent, and the parts can be completed by the frame 5 and the stator 2. Moreover, the number of parts can be reduced by integrally molding the sheet metal member 12 and the connection plate cover 11.
- connection plate holder 10, the bus bar 9, and the connection plate cover 11 are pressed and fixed using the elastic force of the sheet metal member 12.
- the sheet metal member 12 since one end of the sheet metal member 12 is fixed to the frame 5 body, the sheet metal member 12 is used without being bent. And the parts can be completed by the frame 5 and the stator 2.
- connection plate holder 1 rotor, 2 stator, 3 shaft, 4 flange, 5 frame, 6 aluminum frame (housing), 7 stator core, 8 coil, 9 bus bar, 10 connection plate holder, 11 connection plate cover, 12 sheet metal member, 13, 13A burring part 14 bolts, 15 crimped parts, 16 bolts.
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- Engineering & Computer Science (AREA)
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- Motor Or Generator Frames (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
Description
図1(a),(b)は、この発明の実施の形態1に係る結線板の固定構造および回転電機の構成を示す断面図および斜視図である。なお、図1(a)の断面図は、回転電機の左半分だけを図示しており、回転電機の右半分は省略している。図1(a)の一点鎖線を対称軸とし、回転電機の左半分と右半分とは線対称の構成となっている。
図3は、本実施の形態2に係る結線板の固定構造および回転電機の構成を示す断面図である。本実施の形態2に係る回転電機の全体の構成は、上記の実施の形態1で示した構成と同じであるため、ここでは説明を省略する。図3と図2との違いは、図3においては、板金部材12の一端に、かしめ部15が設けられている点である。かしめ部15は、爪状に形成され、板金部材12から突設されている。かしめ部15は、図3に示すように、板金部材12を折り曲げることによって形成してもよいし、あるいは、板金部材12の一部を突出させることにより形成するようにしてもよい。他の構成については、上記の実施の形態1と同じであるため、ここでは、説明を省略する。
図4は、本実施の形態3に係る結線板の固定構造および回転電機の構成を示す断面図である。本実施の形態3に係る回転電機の全体の構成は、上記の実施の形態1で示した構成と同じであるため、ここでは説明を省略する。図4と図2との違いは、図2においては、バーリング部13がフランジ4側に向かって突設されていたが、図4においては、バーリング部13Aがアルミフレーム6側に向かって突設されている点である。他の構成については、上記の実施の形態1と同じであるため、ここでは、説明を省略する。
図5は、本実施の形態4に係る結線板の固定構造および回転電機の構成を示す断面図である。本実施の形態4に係る回転電機の全体の構成は、上記の実施の形態1で示した構成と同じであるため、ここでは説明を省略する。図5と図1との違いは、図5においては、板金部材12をステータコア7に固定している点である。また、板金部材12の形状も、図1のものとは異なる。また、図1においては、フレーム5のフランジ4と、板金部材12と、アルミフレーム6とを、1つのボルト14で同時に締結していたが、図5では図示されていないが、本実施の形態においては、フレーム5のフランジ4とアルミフレーム6とが、板金部材12を介在させずに、直接、1つのボルトで締結されている(例えば、図6参照)。他の構成については、上記の実施の形態1と同じであるため、ここでは、説明を省略する。
図6は、本実施の形態5に係る結線板の固定構造および回転電機の構成を示す断面図である。本実施の形態5に係る回転電機の全体の構成は、上記の実施の形態1で示した構成と同じであるため、ここでは説明を省略する。図6と図1との違いは、図6においては、板金部材12をアルミフレーム6に、ボルト16により、ネジ止めしている点が異なる。また、図1においては、フレーム5のフランジ4と、板金部材12と、アルミフレーム6とを、1つのボルト14で同時に締結していたが、図6においては、フレーム5のフランジ4とアルミフレーム6とが、ボルト14で締結されている。他の構成については、上記の実施の形態1と同じであるため、ここでは、説明を省略する。
図7は、本実施の形態6に係る結線板の固定構造および回転電機の構成を示す断面図である。本実施の形態6に係る回転電機の全体の構成は、上記の実施の形態1で示した構成と同じであるため、ここでは説明を省略する。図7と図1(b)との違いは、図1(b)においては、板金部材12が径方向に固定していたが、図7においては、板金部材12を、径方向より傾いた方向に固定している点が異なる。他の構成については、上記の実施の形態1と同じであるため、ここでは、説明を省略する。
図8は、本実施の形態7に係る結線板の固定構造および回転電機の構成を示す断面図である。本実施の形態7に係る回転電機の全体の構成は、上記の実施の形態1で示した構成と同じであるため、ここでは説明を省略する。図8と図1(a)との違いは、図1(a)においては、板金部材12をボルト14によりフレーム5のフランジ4に固定していたが、図8においては、板金部材12の固定方法および固定位置が異なる。他の構成については、上記の実施の形態1と同じであるため、ここでは、説明を省略する。
Claims (9)
- 円環状に形成されたバスバーと前記バスバーを保持するホルダとから構成される結線板を固定するための結線板の固定構造であって、
前記結線板を内部に収容する円筒型のフレームと、
前記結線板を固定するための板金部材と
を備え、
前記板金部材の一端は、前記フレームの外周部に固定され、
前記板金部材の他端は、前記フレーム内の前記結線板に向かって延設された可動端で、前記結線板の端面を前記フレームの軸方向に押さえ、前記結線板を固定する
ことを特徴とする結線板の固定構造。 - 円環状に形成されたバスバーと前記バスバーを保持するホルダとから構成される結線板を固定するための結線板の固定構造であって、
前記結線板を内部に収容する円筒型のフレームと、
前記結線板を固定するための板金部材と
を備え、
前記結線板は、回転電機に用いられ、
前記板金部材は略コの字形状を有し、内部に前記結線板が配置され、
前記板金部材の一端は、前記回転電機のステータコアに固定され、
前記板金部材の他端は、可動端で、前記結線板の端面を前記ステータコア側に向かって押さえ、前記結線板を固定する
ことを特徴とする結線板の固定構造。 - 前記板金部材は弾力性を有し、前記板金部材は、前記弾性力で、軸方向に前記結線板を押さえる
ことを特徴とする請求項1または2に記載の結線板の固定構造。 - 前記板金部材の前記可動端は、かしめ部を有し、
前記板金部材が前記結線板に対して軸方向に押圧され、前記可動端の前記かしめ部が、前記結線板に対して埋め込まれることにより、前記結線板が固定される
ことを特徴とする請求項1ないし3のいずれか1項に記載の結線板の固定構造。 - 前記結線板は、絶縁性を有するカバーを有し、
前記板金部材は、前記カバーを介して、前記結線板を押さえる
ことを特徴とする請求項1ないし4のいずれか1項に記載の結線板の固定構造。 - 前記外フレームの外周部に固定される前記板金部材の前記一端は、前記フレームに圧入するためのバーリング部を有している
ことを特徴とする請求項1ないし5のいずれか1項に記載の結線板の固定構造。 - 前記フレームに固定されるハウジングをさらに備え、
前記板金部材は、前記フレームと前記ハウジングとに共締めされ固定される
ことを特徴とする請求項1、3ないし6のいずれか1項に記載の結線板の固定構造。 - 円環状に形成されたバスバーと前記バスバーを保持するホルダとから構成される結線板を固定するための結線板の固定方法であって、
前記結線板をフレームの内部に収容するステップと、
平板から構成された板金部材を用意するステップと、
前記板金部材の一端を、前記フレームの外周部に固定するステップと、
前記板金部材の他端を前記フレーム内の前記結線板に向かって延設させ、当該他端により、前記結線板の端面を前記フレームの軸方向に押さえ、前記結線板を固定するステップと
を備えたことを特徴とする結線板の固定方法。 - 円筒状のステータと、
前記ステータ内に回転可能に設けられたロータと、
前記ステータが固定され、前記ステータおよび前記ロータを内部に収容する円筒型のフレームと
を備えた回転電機であって、
前記ステータは、
円筒状のステータコアと、
前記ステータコアに巻回されたコイルと、
円環状に形成されたバスバーと前記バスバーを保持するホルダとから構成される結線板と、
前記結線板を固定するための板金部材と
を備え、
前記板金部材の一端は、前記フレームの外周部に固定され、
前記板金部材の他端は、前記フレーム内の前記結線板に向かって延設され、前記結線板の端面を前記フレームの軸方向に押さえ、前記結線板を固定している
ことを特徴とする回転電機。
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US14/423,172 US10411542B2 (en) | 2012-10-15 | 2012-10-15 | Fixing structure and fixing method for wire connection plate, and rotating electrical machine |
PCT/JP2012/076595 WO2014061073A1 (ja) | 2012-10-15 | 2012-10-15 | 結線板の固定構造、固定方法、および、回転電機 |
JP2014541824A JP5885177B2 (ja) | 2012-10-15 | 2012-10-15 | 結線板の固定構造、固定方法、および、回転電機 |
DE112012007017.8T DE112012007017T5 (de) | 2012-10-15 | 2012-10-15 | Befestigungsstruktur, Befestigungsverfahren für eine Drahtverbindungsplatte und Elektrodrehmaschine |
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DE112012007017T5 (de) | 2015-07-02 |
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