JP2008283738A - Spool for continuous winding form coil and method for forming continuous winding form coil - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spool for continuous winding form coil in which variation in profile is suppressed by making tension substantially constant through mechanical winding, and wasted wiring due to cutting is eliminated by continuous winding. <P>SOLUTION: A spool 10 for form coil is loaded to a holder 13, the spool 10 is turned forward through the holder 13 to wind a wire Ca by a predetermined number of turns. A next spool 10 is loaded and turned reversely around the axis of rotation through the holder 13 and the wire Ca is wound by one half turn. A next spool 10 is then loaded, and so as to form a next coil, the spool 10 is turned forward and the wire Ca is wound by the predetermined number of turns. The spool 10 is composed of a rectangular plate body of a proper material, and a thin winding portion 10t is formed on the distal end side as a space for winding the wire Ca. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a winding frame for a continuous winding foam coil of a rotating electrical machine and a method for forming a continuous winding foam coil.

In recent years, a coil wound using a conductive wire has been used for each tooth of a core in a stator of a rotating electrical machine.
For example, in Patent Document 1, a tooth coil winding method in which the starting end of a tooth coil is disposed at the root (or tip) of the tooth and the end is disposed at the tip (or root) of the tooth, and the starting end of the tooth coil and A tooth coil winding method is proposed in which the end is arranged at the tip of the tooth.

JP 2001-186703 A

Furthermore, when the stator is continuously wound by the conductive wire Ca (in this case, a flat wire), the foam coil 1 provided with the reversing portion Rs is used (see FIG. 11). In order to form such a foam coil 1, it is assumed that a desired shape can be obtained by winding with a jig 2 as shown in FIG. Yes.
However, such a forming method cannot be adopted because there is a possibility that the strength of the reversal portion Rs is insufficient due to work hardening and disconnection occurs.

In addition, as shown in FIG. 14, when winding the conducting wire Ca between the pins P and P for winding in the jig 2, a method of reversing through the gap can be considered, but the pins P and P are thin ( The pin diameter is 1 to 2.5 mm), the bending is likely to occur, and the dimensions of the foam coil 1 are likely to vary.
Furthermore, in order to pass the conducting wire Ca between the pins P and P for winding in the jig 2, it is necessary to remove from the reel or to remove the pin P, which makes winding difficult.

  Due to the disadvantages described above, at present, the form coil 1 is produced by directly winding it around the winding frame (10) F as shown in FIG.

Therefore, the productivity is low due to the manual work as described above, and it is difficult to avoid the unevenness of the finish, that is, the variation of the shape due to the fluctuation of the tension at the time of winding.
The present invention has been proposed in order to solve such problems, and is easy to wind mechanically, and by making the tension constant by mechanical winding, variation in shape can be suppressed, and continuous winding is possible. An object of the present invention is to provide a winding frame for a continuous winding form coil of a rotating electrical machine that eliminates waste of a conducting wire by cutting.

  In order to solve the above-mentioned problem, in the invention described in claim 1, a continuous winding form coil (1) is formed by winding a conductive wire (Ca) a predetermined number of times and reversing continuously every time the predetermined number of windings are performed. ) And a plurality of plates that are sequentially loaded into the winding machine (11) every time the winding machine (11) is wound a predetermined number of times and every time it is half-reversed. .

  As a result, the tension can be made substantially constant by mechanical winding, variation in shape can be suppressed, and the use of the conductive wire by cutting can be eliminated by the continuous winding.

  In the invention according to claim 2, the plate body has a rectangular shape and has a thin-walled winding portion (10t) as a winding space for winding the conducting wire (Ca) on the tip side. Features.

  Thereby, the drawn-out conducting wire (Ca) can be accommodated in the place of the thin-walled winding part (10t), and does not rise even when stacked, and corresponds to the multilayer winding specification.

  Further, the invention according to claim 3 is characterized in that the winding frame (10) has an expanded dimension corresponding to the winding space in the winding order.

  Thereby, when each winding frame (10) is loaded into the winding machine (11), the winding work can be prevented from being hindered by the mutual winding frame (10).

  Further, in the invention according to claim 4, when the conductive wire (Ca) is wound a predetermined number of times and reversed every time the conductive wire (Ca) is wound a predetermined number of times to form the foam coil (1) continuously, the winding frame (10) After winding a predetermined number of times in the forward rotation, and then winding the next winding frame (10) half a turn in the reverse rotation, and further winding the next winding frame (10) a predetermined number of times in the forward rotation. And

  Thus, the foam coil (1) can be formed by using a different winding frame (10) each time it is wound a predetermined number of times and half-turned by reverse rotation.

  Furthermore, in the invention described in claim 5, the winding frame (10) is loaded into the holder (13) fixed to the rotating shaft of the winding machine (11), and the lead wire (Ca) is wound a predetermined number of times by forward rotation. Later, the next reel (10) is loaded into the holder (13), the holder (13) is rotated in the reverse direction, and the lead wire (Ca) is half wound around the reel (10). ) Is loaded into the holder (13) and wound a predetermined number of times by forward rotation.

  Thereby, the form coil (1) can be continuously formed by the winding machine (11), and a constant quality with little variation can be efficiently produced.

It should be noted that the above-described forward rotation refers to rotation in a specific direction, either clockwise or counterclockwise.
Moreover, the code | symbol in the parenthesis attached | subjected to each component described to each said component is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

FIG. 1 schematically shows an example of a winding machine 11 for forming a foam coil 1 by using a continuous-winding form coil winding frame 10 according to the present invention.
The winding machine 11 has a well-known configuration. The winding machine main body 12 is detachably provided with a holder 13 that is dynamically connected to a rotational drive source (not shown), and the foam loaded in the holder 13 is provided. The coil holding frame 14 is provided with a winding holding means 14 for supplying the conductive wire Ca wound and held.
Here, a rectangular wire is used for the conducting wire Ca. A coil using a flat wire has a higher occupation ratio (conductive wire area / cross-sectional area of coil arrangement space) than a coil formed by bending a round wire.

  The winding machine main body 12 has a well-known configuration, and a plurality of foam coil reels 10 are placed on a holder 13 along a rotation axis direction of the holder 13 by a well-known linear drive means (for example, a cylinder 15S) as appropriate. A winding frame moving mechanism 15 for loading / unloading is mounted, and a rotation drive mechanism (not shown) for winding the lead wire Ca around the foam coil winding frame 10 loaded in the holder 13 a predetermined number of times is provided. ing. In addition, since these drive mechanisms themselves are not the main part of this invention, those detailed structures are not shown here and description is also abbreviate | omitted.

The holder 13 is a cylindrical ring member provided with an inner loading portion 16 for sequentially loading the form coil winding frame 10 according to the present invention every predetermined number of turns and holding it in a normally reversible direction around the rotation axis. 17.
The cylindrical ring member 17 includes a lower part of a winding holder for supporting the state in which the winding frame moving mechanism 15 is activated and moved to a position where the loaded winding frame 10 is subjected to a winding operation in a stable state. 18 is provided.

The form coil winding frame 10 is made of an appropriate material and is formed of a plate having a rectangular shape and a thin winding portion 10t as a winding space for winding the conductive wire Ca on the tip side. (See FIG. 4).
That is, for example, in the case of a six-layer winding (three rounds) specification, the reel 10 is used one by one for each circumference and inversion portion, and for that purpose, a total of five reels 10 are used. .
Note that the order of the winding frames 10 is determined, and the thin winding portions 10t as the winding space have a long dimension according to the order of use.

Next, the formation method of the continuous winding foam coil 1 using the winding frame 10 for continuous winding foam coils according to the present invention will be described. Here, as described above, a method of forming the continuous winding foam coil 1 using the five winding frames 10 will be described.
First, the holder 13 is attached to the rotating shaft (not shown) of the winding machine body 12 in the winding machine 11 (see FIG. 5). Next, the winding operation is performed according to the following procedure.
(1) The first reel 10 for winding the first round is loaded (see FIG. 6). At this time, the winding frame 10 is loaded with the thin winding portion 10t facing the inner loading portion 16 of the holder 13 in the same direction as the forming direction of the lower portion 18 of the winding holder projecting forward of the holder 13. To do. Here, the winding frame 10 can be supported in a stable state by the take-up holder lower part 18 protruding forward of the holder 13.

And the rotation drive means of the winding machine main body 12 in the winding machine 11 is started, and the holder 13 is rotated in one direction (forward rotation direction). As a result, the conductive wire Ca wound and held by the winding holding means 14 is drawn out, and can be wound around the thin winding portion 10t of the winding frame 10 by a predetermined number of turns without breaking the shape. (See FIG. 7).
Thus, since the conducting wire Ca can be accommodated in the place of the thin-walled winding part 10t, even if it overlaps, it corresponds to a multilayer winding specification, without rising.
(2) When the winding is completed for a predetermined number of turns, the holder 13 is stopped so that the lower part 18 of the take-up holder faces up.

(3) Next, in order to load the second reel 10, the reel moving mechanism 15 is activated and is placed under the reel 10 that has already been wound, that is, opposite to the lower part 18 of the take-up holder. The reel 10 is protruded in the same direction as the formation direction of the holder 13 front and the winding holder lower part 18.
The second reel 10 is slightly protruded (half a space) compared to the already wound reel 10 (see FIG. 8). Then, the rotary drive mechanism in the winding machine main body 12 is driven to reverse the holder 13, and the lead wire Ca is wound half a turn to stop the rotary drive mechanism (see FIG. 9).
(4) Next, the third reel 10 is loaded, and the reel moving mechanism 15 is activated to wind it one turn at a predetermined number of turns, and as a winding space compared to the second reel 10. The thin-walled winding part 10t is projected. Next, the rotary drive mechanism is driven to rotate the holder 13 in the forward rotation. Thereby, the conducting wire Ca is drawn out from the winding holding means 14, and can be wound around the thin winding portion 10t of the winding frame 10 by a predetermined number of turns (see FIG. 7).
(5) In the same manner as the second reel 10, the fourth reel 10 is stopped by winding the conductor Ca half a turn conversely as a half-turn space and protruding state.
(6) The fifth reel 10 is loaded, and the reel moving mechanism 15 is activated to wind it one turn at a predetermined number of turns. Compared to the fourth reel 10, the thin reel as the winding space The shape winding part 10t is protruded.
Then, the rotation drive mechanism is driven to rotate the holder 13 in the normal rotation, and the thin winding portion 10t of the fifth reel 10 is wound by a predetermined number of turns to complete (see FIG. 10).

As described above, mechanical winding is easy, and the tension is fixed by mechanical winding, so that variation in shape can be suppressed, and continuous winding makes it possible to eliminate waste of conductors due to cutting. .
The above-described embodiment is merely an example, and it is a matter of course that an arbitrary number of layer windings can be set, and continuous and mechanical winding work can be performed based on the setting.

It is typical structure explanatory drawing which shows an example of the winding machine for forming a foam coil using the winding frame for continuous winding foam coils concerning this invention. It is an isometric view explanatory drawing of the holder which mounts the winding frame for continuous winding foam coils concerning this invention. FIG. 3 is a schematic cross-sectional explanatory view of the holder shown in FIG. 2. It is a perspective view which shows an example of the winding frame for continuous winding foam coils concerning this invention. It is a schematic diagram with which it uses for description of the formation method of the continuous winding foam coil using the winding frame for continuous winding foam coils concerning this invention. It is a schematic diagram with which it uses for description of the formation method of the continuous winding foam coil using the winding frame for continuous winding foam coils concerning this invention. It is a schematic diagram with which it uses for description of the formation method of the continuous winding foam coil using the winding frame for continuous winding foam coils concerning this invention. It is a schematic diagram with which it uses for description of the formation method of the continuous winding foam coil using the winding frame for continuous winding foam coils concerning this invention. It is a schematic diagram with which it uses for description of the formation method of the continuous winding foam coil using the winding frame for continuous winding foam coils concerning this invention. It is an isometric view explanatory drawing of the continuous winding foam coil formed using the winding frame for continuous winding foam coils concerning this invention. It is a perspective view which shows an example of the foam coil which has an inversion part. It is a perspective view for demonstrating the method of forming the conventional foam coil. It is a perspective view for demonstrating the method of forming the conventional foam coil. It is a perspective view for demonstrating the method of forming the conventional foam coil. It is a perspective view for demonstrating the method of forming the conventional foam coil.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Winding frame 10t Thin-walled winding part 11 Winding machine 12 Winding machine main body 13 Holder 14 Winding holding means 15 Winding frame moving mechanism 15s Cylinder 16 Inner loading part 17 Cylindrical ring member 18 Winding holder lower part Ca conducting wire

Claims (5)

  A winding frame (10) for a continuous winding foam coil (1) which is continuously formed by winding a conductive wire (Ca) a predetermined number of times and reversing every time the conductive wire (Ca) is wound a predetermined number of times. 11) A winding frame for a continuous-winding form coil, comprising a plurality of plates that are sequentially loaded every time a predetermined number of turns and every time a half turn is reversed.   2. The continuous plate according to claim 1, wherein the plate body has a rectangular shape and has a thin-walled winding portion (10 t) as a winding space for winding the conductive wire (Ca) on the distal end side. Winding form winding coil.   The winding frame (10) according to claim 1 or 2, wherein the winding frame (10) has an expanded dimension corresponding to a winding space in the winding order.   When the conductive wire (Ca) is wound a predetermined number of times and reversed every time the winding is performed a predetermined number of times to form the foam coil (1) continuously, the winding frame (10) is wound a predetermined number of times by forward rotation, A method of forming a continuous-winding form coil, comprising: forming a half-winding by reverse rotation on the next winding frame (10) and then winding the next winding frame (10) by a predetermined number of turns by forward rotation.   The winding frame (10) is loaded into the holder (13) fixed to the rotating shaft of the winding machine (11), and after winding the conducting wire (Ca) a predetermined number of times in the forward rotation, the next winding frame (10) is The holder (13) is loaded, and the holder (13) is rotated in the reverse direction and the wire (Ca) is half-wound around the reel (10). Then, the next reel (10) is further attached to the holder (13). A method of forming a continuous-winding foam coil, comprising loading and forming a predetermined number of turns by forward rotation.

Images