JP2008145153A - Rotating electrical machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotating electrical machine having both a member for taking signal wires out of a resolver and a member required to adjust a resolver stator and especially capable of reducing both the number of parts and the number of machining man-hours and improving assembly workability. <P>SOLUTION: A case 107 is provided with a rotating shaft 103 of the rotating electrical machine 1; a connector 20 for high voltage and for supplying high-voltage electric power for the rotating electrical machine 1; a plate 2 for extracting signals from the resolver stator 110B to the outside of the case; and adjusting screws and screw holes (5, 9 and 6) for adjusting positions. The back surface of the plate 2 is provided with a stay 3 for harness fixation and for fixing a harness from the resolver stator 110B. By displacing the plate 2 provided with a resolver connector 4, it is possible to access the resolver stator 110B from an adjusting hole 12, and the plate 2 is hold by the stay 3 for harness fixation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rotating electrical machine, and in particular, a resolver provided in a case for detecting a rotation angle of a rotor, and a plurality of elongated holes provided in the resolver for adjustment. The present invention relates to a rotating electrical machine including a fixing member that is fixed after adjusting the mounting position of a resolver using an adjustment hole.

  Conventionally, in rotary electric machines such as electric motors and generators, rotary encoders, resolvers, and the like have been used as rotation sensors for detecting the rotational position of the rotary shaft, and in particular, rotary electric machines for vehicles that are exposed to vibration, heat, and oil. Then, a resolver with a simple structure is often used.

  FIG. 6 shows a cross section of the drive unit 101 in which the resolver 110 is incorporated. The drive unit 101 generates power as an electric motor during acceleration, and operates as a generator by regenerative control during deceleration. The drive unit 101 includes a rotating shaft 103 that is rotated by a rotating electrical machine 102, a counter gear pair 104 and a final gear pair 105 as a speed reduction mechanism, and a differential mechanism unit 106 that drives two wheels.

  As shown in a circled part A in FIG. 6, the resolver 110 includes an elliptical resolver rotor 110 </ b> A provided on the rotor rotation side and a resolver stator 110 </ b> B provided on the case side. Furthermore, the resolver stator 110B surrounds the outer side of the resolver rotor 110A, and has a measurement excitation coil, a first detection coil, and a second detection coil (not shown).

  When the ellipsoidal resolver rotor 110A rotates with the measurement reference signal output to the measurement excitation coil, the resolver 110 measures the first according to the gap interval between the resolver rotor 110A and the resolver stator 110B. A signal is output from the first and second detection coils, and as a result, the rotational position of the rotor is detected by a signal corresponding to the rotor position. For this reason, in order to know the correct rotor position, the resolver stator needs to be positioned, and a member for position adjustment is provided.

  In particular, rotating electrical machines for vehicles are required to save space, reduce processing man-hours, and improve assembly workability. Therefore, in order to realize such a requirement, Patent Document 1 discloses a technique for shortening the total length of the rotating electrical machine. Patent Document 2 discloses a technique related to a resolver fixing structure of a brushless motor that can prevent a positional shift in a circumferential direction of a stator of a resolver and can be easily fixed to a predetermined position with high accuracy.

Japanese Patent Laying-Open No. 2005-117736 JP 2003-32989 A

  A rotating electrical machine for a vehicle is provided in a case having airtightness so that lubricating oil does not leak to the outside, and a connector hole and a resolver connector for extracting a signal from the resolver to the outside of the case, and a position of the resolver stator It is necessary to provide an adjustment hole for confirming the condition and an adjusting screw for fixing the resolver stator, and a stay for fixing the resolver harness, which reduces the number of parts, reduces the number of processing steps, and improves the assembly workability. It was a hindrance.

  Accordingly, an object of the present invention relates to a rotating electric machine having a signal line take-out member from a resolver and members necessary for adjusting a resolver stator, and in particular, realizes a reduction in the number of parts, a reduction in processing man-hours, and an improvement in assembly workability. It is to provide a rotating electrical machine.

  In order to solve the above-described object, the rotating electrical machine according to the present invention adjusts the mounting position of the resolver using a resolver provided in the case and an adjustment hole provided in the case in order to detect the rotation angle of the rotor. In a rotating electrical machine including a fixing member that fixes a resolver after the fixing, the fixing member takes out an adjustment screw for fixing the resolver to the case and a signal line connected to the resolver from the case and closes the adjustment hole of the case. It has a lid that is closed, and a holding member that holds a state in which the resolver can be adjusted when the lid is opened.

  Further, the rotating electrical machine according to the present invention is provided with a resolver provided in the case for detecting the rotation angle of the rotor, and a plurality of long holes for the adjuster to be held in an adjustable manner. And a fixing member that fixes the resolver after adjusting the mounting position of the resolver using the adjusted holes. The fixing member includes a plurality of adjusting screws that fix the resolver to the case using the resolver long holes. And a lid that takes out the signal line connected to the resolver out of the case and closes the adjustment hole, and the lid moves over the adjustment hole with a single adjustment screw as a fulcrum to a predetermined position. And an engaging claw that engages with the end of the adjustment hole.

  In the rotating electrical machine according to the present invention, the engaging claw provided on the lid body is used as a wire connection tool for collecting and fixing the signal lines.

  Furthermore, in the rotating electrical machine according to the present invention, the resolver is adjustable by loosening an adjusting screw and opening a lid for taking out the signal line to the outside.

  Furthermore, in the rotating electrical machine according to the present invention, the resolver is fixed to the case by at least two adjustment screws for fixing the lid to the case and at least one other adjustment screw.

  According to the present invention, a resolver connector and a harness fixing stay that fixes and protects a harness to a plate that closes an adjustment hole for position adjustment of the resolver stator, and the harness fixing stay is formed by opening the plate. By providing the harness fixing stay that holds the plate where the ends of the adjustment holes fit together, there is an effect that the number of parts can be reduced.

  Also, by opening the plate, the plate is held by the harness fixing stay, and the access of the resolver stator is secured, so that there is an effect that the efficiency of the resolver stator adjustment work can be realized.

  Hereinafter, embodiments of the present invention (hereinafter referred to as embodiments) will be described with reference to the drawings.

  FIG. 1 is a side view of the rotating electrical machine 1 as viewed from the rotational axis direction, and shows a state in which the resolver stator 110B can be accessed from the adjustment hole 12 by shifting the plate 2 provided with the resolver connector 4. The case 107 includes a rotating shaft 103 of the rotating electrical machine, a high voltage connector 20 for supplying high-voltage power to the rotating electrical machine, a plate 2 for taking out a signal from the resolver stator 110B, and a resolver. Adjustment screws and screw holes (5, 9, 6) for position adjustment are provided. Furthermore, a harness fixing stay 3 for fixing the harness from the resolver stator 110B is provided on the back surface of the plate 2.

  FIG. 2 is an enlarged view in which the vicinity of the resolver connector 4 of the rotating electrical machine 1 is enlarged. After adjusting the position of the resolver stator 110B, temporary fixing is performed with the adjusting screws 5 and 9 shown in FIG. The adjustment hole 12 is sealed with the adjustment screws 5 and 6 and the plate fixing screws 7 and 8. The adjustment hole 12 is a space in which the resolver connector 4, the harness, and the harness fixing stay 3 are inserted, and is collected in one place to save space.

  FIG. 3 is an explanatory diagram for explaining a state in which the plate 2 is shifted in order to adjust the resolver stator 110 </ b> B of the rotating electrical machine 1. A harness fixing stay is provided on the back surface of the plate 2, and the harness extending from the resolver connector 11 is fixed by the harness fixing stay 3 and connected to the resolver connector 4.

  The harness fixing stay 3 fixes the harness, and a part of the stay 3 is fixed to the end of the adjusting hole 12 for fixing the harness, and is held by the adjusting screw 5 and the stay 3 for fixing the harness to the resolver stator 110B. Will not block access.

  FIG. 4 is a back view seen from the back side for explaining the plate 2 provided with the resolver connector 4. The harness fixing stay 3 is provided with a sealing bead 10 to ensure airtightness, and has a guide surface with a predetermined curvature instead of a linear guide in order to guide the harness with a gentle curvature. . With this wiring method, even if the plate 2 is moved, no extra tension is applied to the harness, and it is possible to reduce the number of harness stop stays by contacting the inner wall of the case by having an appropriate curvature. became.

  The harness connected to the resolver connector 4 is bent with a gentle curvature along the harness fixing stay 3 and connected to the resolver stator terminal. Furthermore, the concave portion of the base portion of the harness fixing stay and the end portion of the adjustment hole 12 can be fitted together and the plate 2 can be held by the portion indicated by the circled portion B in FIG.

  FIG. 5 is a top view of the plate provided with the resolver connector as viewed from above. As shown in FIG. 5, the plate 2 is provided with a sealing bead 10 and a harness fixing stay 3. Further, the harness fixing stay 3 is provided so as to incline toward the inner side of the recess to fix the harness. A plurality of engagement projections 15 for preventing the drop-out from the end portion and an inner guide are provided.

  In the present embodiment, the plate 2 is made as a part in which the harness fixing stay 3, the resolver connector 4, and the sealing bead are integrally formed with resin, thereby reducing the number of parts.

  As described above, when the present embodiment is used as described above, the resolver connector is attached to the plate that closes the adjustment hole for position adjustment of the resolver stator, and the harness fixing stay and the end of the adjustment hole are opened by opening the plate. By providing the harness fixing stay that holds the fitting plate, the number of parts can be reduced. Further, by collecting the components in one place in this way, it is possible to reduce useless space and realize space saving.

  Also, by opening the plate, the plate is held by the harness fixing stay and the access of the resolver stator is secured, so that the efficiency of the resolver stator adjustment work can be realized.

  In this embodiment, a harness fixing stay is provided on the plate side to provide a stopper function. However, the present invention is not limited to this form, and the adjustment hole is sufficiently opened by protruding the stopper from the outer wall of the case. Needless to say, a structure that can fix the position may be used.

It is the side view which looked at the rotary electric machine which concerns on embodiment of this invention from the rotating shaft direction. It is the enlarged view to which the resolver connector vicinity of a rotary electric machine was expanded. It is explanatory drawing explaining the state which shifted the plate in order to adjust the resolver stator of a rotary electric machine. It is the reverse view seen from the back side in order to demonstrate the plate provided with the resolver connector. It is the top view which looked at the plate which provided the resolver connector from the upper surface. It is sectional drawing which shows the cross section of the drive unit by the conventional resolver attachment method.

Explanation of symbols

  1,102 Rotating electric machine, 2 plates, 3 Harness fixing stay, 4 Resolver connector, 5, 6, 9 Adjustment screw, 7, 8 Plate fixing screw, 10 Sealing bead, 11 Resolver connector, 12 Adjustment hole, 15 Engagement Convex part, 16 harness engaging part, 20 high voltage connector, 101 drive unit, 103 rotating shaft, 104 counter gear pair, 105 final gear pair, 106 differential mechanism part, 107 case, 110 resolver, 110A resolver rotor, 110B Resolver stator.

Claims (5)

In a rotating electrical machine including a resolver provided in a case for detecting a rotation angle of a rotor, and a fixing member for fixing the resolver after adjusting a mounting position of the resolver using an adjustment hole provided in the case,
The fixing member is
An adjustment screw for fixing the resolver to the case;
A lid that takes out the signal line connected to the resolver out of the case and closes the adjustment hole of the case;
A holding member that holds the state in which the resolver can be adjusted when the lid is opened; and
A rotating electrical machine comprising: A resolver provided in the case for detecting the rotation angle of the rotor, and a plurality of elongated holes for adjusting the resolver are provided in the resolver, and the resolver is attached by using the adjustment holes provided in the case. In a rotating electrical machine including a fixing member that fixes a resolver after adjusting the position,
The fixing member is
A plurality of adjusting screws for fixing the resolver to the case using the resolver elongated holes;
A lid that takes out the signal line connected to the resolver from the case and closes the adjustment hole,
Have
The lid includes an engaging claw that moves on the adjustment hole with a single adjustment screw as a fulcrum and engages an end of the adjustment hole at a predetermined position. The rotating electrical machine according to claim 2,
The rotating electric machine is characterized in that the engaging claw provided on the lid is used as a connection tool for collecting and fixing the signal lines. In the rotating electrical machine according to claim 1 or 2,
The resolver
A rotating electric machine characterized in that an adjustment screw is loosened and adjustment is made possible by opening a lid for taking out a signal line to the outside. In the rotating electrical machine according to claim 1 or 2,
The resolver is fixed to the case by at least two adjusting screws for fixing the lid to the case and at least one other adjusting screw.

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