JP2805623B2 - Mounting method of slot type stator - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for mounting a slot type stator.

[Summary of the Invention] The present invention relates to a method of mounting a slot type stator, wherein a step of temporarily fixing a terminal plate to which an end of the drive coil is mounted to a core having a drive coil wound in a slot portion, and a motor assembly Sometimes, the terminal plate is removed from the core, and the terminal plate is connected to the electric board, so that the terminal treatment of the drive coil and the attachment to the chassis or the like can be performed extremely easily. It was made.

[Prior Art] For example, a slot type stator used for a brushless motor or the like is known. This will be described in detail with reference to FIGS. 10 and 11. Reference numeral 1 denotes a slot type stator.
The slot-type stator 1 is configured by winding a drive coil 5 between a plurality of slots 3 provided in a core (iron core) 2 made of a silicon steel plate or the like by an automatic winding machine (not shown).

[Problems to be Solved by the Invention] In the above-mentioned slot type stator 1, each drive coil 5 wound between each slot 3 can be fixed with an adhesive or the like, but the tip (terminal) 5a of each drive coil 5 is Since it is connected to an electric circuit or the like of a printed circuit board by soldering or the like, it must be kept free. Therefore, it has been difficult to completely automate the winding of each drive coil 5 in consideration of the post-processing of the terminal of each drive coil 5.

As shown in FIG. 11, the tip 5a of each drive coil 5 of the slot-shaped stator 1 is mounted on the electric circuit of the printed circuit board 11 by soldering.
5a is the slot type stator 1 in the free state as described above.
For example, when transported to an assembly plant or the like and subjected to soldering, since the tip 5a of each drive coil is bent or entangled in the slot 3 side, their positions are not fixed,
Each of the tips 5a of the drive coils 5 must be manually aligned and then soldered, which requires a lot of time for soldering and poor workability. It was extremely difficult to implement it automatically.

Accordingly, the present invention provides a slot-type stator that can completely automate the winding of the drive coil and can easily perform the terminal processing of the drive coil.

[Means for Solving the Problems] A step of temporarily fixing a terminal plate to which an end of the drive coil is attached to a core in which a drive coil is wound into a slot portion, and disassembling the terminal plate from the core during motor assembly. Removing the terminal plate and connecting the terminal plate to the electric board.

[Operation] By winding the terminal of the drive coil wound in the slot of the core around the terminal of the terminal plate detachably provided on the core, the winding can be completely automated. Also,
The terminal treatment of the drive coil on the electric circuit or the like of the board, that is, the mounting of the slot type stator on the board or the like is easily performed by automation.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. The same parts as those of the conventional configuration are denoted by the same reference numerals and described.

In FIG. 1, reference numeral 1 denotes a slot type stator, which is used for a brushless motor or the like. As shown in FIG. 2, the slot-type stator 1 has a disk-shaped annular core (iron core) 2 made of a silicon steel plate or the like. Inverted substantially U-shaped slots 3 are formed on the outer peripheral side of the core 2 at equal intervals. A plurality of slot portions (referred to as core portions between the slots 3) 3a for windings are provided between the slots 3.

A V-shaped groove 2b is formed in a part of the inner peripheral surface 2a of the core 2.
Between the V-shaped groove 2b and the inner peripheral surface 2a of the core 2 facing 180 °, a terminal plate 6 formed of a synthetic resin into a rectangular plate as shown in FIG. 3 is provided. As shown in FIG. 4, they are detachably fitted and temporarily fixed. This terminal plate 6
A plurality of pin-shaped terminals 7 are protruded on the upper surface side, and a pair of mounting pins whose lower part is bifurcated on the lower surface side.
Hanging 8,8.

The slot-shaped stator 1 is configured by winding the drive coil 5 into each of the slot portions 3a of the core 2, respectively. Each slot 3a of the core 2
Is covered with a resin cover 4 by so-called outsert molding or the like, and the drive coil 5 is wound by an automatic winding machine in a state where the slot portions 3a covered with the cover 4 are insulated. At the time of this outsert molding or the like, the terminal plate 6 having the terminals 7 and the like may be simultaneously detachably molded. The winding of each drive coil 5 starts from the terminal 7 of the terminal plate 6 temporarily fixed to the inner peripheral surface 2a of the core 2 and ends at the terminal 7 of the terminal plate 6. Coil 5
As shown in FIG. 5, the length of the tip (terminal) 5a of the terminal can be such that the terminal plate 6 can be detached from the core 2, and the motor driving electric circuit (drive circuit) formed on the printed circuit board 11 It is designed to be long enough to connect up to 12.

According to the slot type stator 1 of the embodiment described above, the core 2
The end (terminal) 5a of the drive coil 5 wound in each slot 3a of the core 2 is wound around the terminal 7 of the terminal plate 6 temporarily fixed to the inner peripheral surface 2a of the core 2. When the drive coil 5 is wound around the portion 3a, the terminal processing of the drive coil 5 can be performed at the same time, and the operation of winding the winding of each drive coil 5 can be completely automated.
Therefore, the time required for the winding can be reduced,
The productivity of the slot type stator 1 can be further increased.

Then, the slot type stator 1 shown in FIG.
For example, when mounting on the chassis 13 of the disk drive device 10 shown in FIG. 6, the terminal plate 6 is removed from the core 2 and
The stator 1 is fixed at a predetermined position facing the rotor of the chassis 13, and a pair of mounting pins 8, 8 of the terminal plate 6 are fitted into a pair of terminal plate mounting holes 13a, 13a formed in the chassis 13 in advance. Then, the terminal plate 6 is fixed. Next, a pattern hole 12a of an electric circuit (drive circuit) 12 for driving a motor of the printed board 11 is inserted into each terminal 7 of the terminal board 6, and soldered. In this manner, the terminal 7 can be positioned only by inserting the terminal 7 of the terminal plate 6 into the pattern hole 11a of the printed circuit board 11, so that the operation of positioning the tips of the drive coils 5 one by one as in the related art is unnecessary. And the electric circuit 12
The workability of the terminal processing of each drive coil 5 on the chassis 13 is improved, and the automatic mounting of the slot-type stator 1 on the chassis 13 can be performed extremely easily.

Also, a harness (assembly wiring) in which the conductor at the tip 5a of each drive coil 5 directly connects the core 2 and the electric circuit 12
Therefore, the cost can be reduced by that much, and the length of the lead wire at the tip 5a can be given a little margin, so that the core 2 of the drive unit (motor) of the disk drive device 10 can be reduced. And the electrical circuit 12 can be freely selected.

Further, even when the drive unit (motor) of the disk drive device 10 is not assembled on the chassis 13 or the like, but is transported to an assembly factory or the like as the slot-type stator 1, the tip (terminal) 5a of the drive coil 5 is connected to the terminal plate. Since the terminal plate 6 is wound around the terminal 7 and the terminal plate 6 is also temporarily fixed to the core 2, there is no need to worry about bending of the tip 5a of the drive coil 5 as in the conventional case.

7 and 8 show the same stator 1 using a terminal plate 16 of another embodiment.
It is a perspective view which shows the other example of mounting. A plurality of terminals 17 project from one side surface of the terminal plate 16 in the longitudinal direction. And
When the pair of terminal pins 16 of the terminal plate 16 are fitted into the pair of terminal plate mounting holes 11a, 11a formed in advance on the printed circuit board 11 of the disk drive device 10, and the terminal plate 16 is fixed,
Each terminal 17 of the terminal board 16 is set on the pattern 12b of the electric circuit (drive circuit) 12 for driving the motor of the printed circuit board 11, and by soldering them, the same operation and effect as in the above embodiment can be obtained. .

FIG. 9 is a perspective view showing another example of mounting the stator 1 using a terminal plate 26 of another embodiment. A plurality of terminals 27 of the terminal plate 26 penetrate the terminal plate 26, and both ends of the terminals 27 project outward.
And the other end of the terminal 27 is fitted to the connector 15 connected to the electric circuit for driving the motor of the printed circuit board 11. Thereby, the same operation and effect as those of the above embodiment can be obtained.

According to the embodiment, the slot type stator of the brushless motor has been described. However, it is needless to say that the present invention can be applied not only to the brushless motor but also to the slot type stator of all motors.

Further, the terminal plate is temporarily fixed to the inner peripheral surface of the core. However, the position is not limited to this position, and any position is possible as long as the terminal plate can be temporarily fixed, such as the outer peripheral surface side of the core.

[Effects of the Invention] As described above, according to the present invention, the terminal of the drive coil wound in the slot portion of the core is wound around the terminal of the terminal plate detachably provided on the core. The winding of the driving coil can be completely automated, and the workability of the terminal processing of the driving coil on an electric circuit or the like of the substrate can be further improved, and the automatic mounting can be performed extremely easily. .

[Brief description of the drawings]

FIG. 1 is a plan view of a slot type stator showing one embodiment of the present invention, FIG. 2 is a perspective view of a core (iron core) used in the stator, and FIG. 3 is a perspective view of a terminal plate used in the stator. FIG. 4, FIG. 4 is a perspective view showing a state before winding with a terminal plate set on a core, FIG. 5 is a perspective view showing a mounting example of the stator, and FIG. 6 is a disk drive device using the stator. FIG. 7 is a perspective view showing another mounting example of the stator using the terminal plate of another embodiment, and FIG. 8 is a perspective view of a disk drive device using the stator using the terminal plate of the other embodiment. , FIG. 9 is a perspective view showing another example of mounting the same stator using a terminal plate of another mode, FIG. 10 is a perspective view of a conventional slot type stator, and FIG. 11 is a conventional slot type stator. It is a top view which shows the example of implementation of. 1 ... slot type stator, 2 ... core, 3a ... slot part, 5 ... drive coil, 5a ... tip (terminal), 6, 16, 2
6 ... Terminal board, 7,17,27 ... Terminal.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H02K 3/00-3/52 H02K 15/04

Claims (1)

(57) [Claims] A step of temporarily fixing a terminal plate having an end portion of the drive coil attached to a core in which a drive coil is wound in a slot portion; and removing the terminal plate from the core during motor assembly. Connecting the terminal plate to the electric board.