JP4774542B2 - Motor stator structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a motor stator structure, and in particular, by connecting the other end of a ground wire, one end of which is fixed to the outer peripheral surface of a ring-shaped stator, to a ring-shaped printed circuit board, stator assembly and resin molding are facilitated. It relates to a new improvement.
[0002]
[Prior art]
Conventionally, as this type of motor stator structure used in the past, in the case of a structure that is not resin-molded, a ground terminal is directly attached to the front lid or rear lid with a screw so as to be grounded. It was.
In the case of a structure with a resin mold, a hole is formed in the end face of the ring-shaped stator, and a pin is attached to the hole to connect the ground wire.
[0003]
[Problems to be solved by the invention]
Since the conventional motor stator structure is configured as described above, the following problems exist.
That is, in the structure where the resin mold is not applied, the ground wire is attached after the ground terminal is directly attached to the front lid and the rear lid, so that it takes time for assembly, and automatic assembly is difficult. .
Also, in the structure where the resin mold is applied, holes must be made in the end face of the stator and the pins must be set up before connecting the ground wire. As in the case described above, assembling takes time and automatic assembly is difficult. there were.
[0004]
The present invention has been made to solve the above problems, in particular, connects the other end of the solid boss was ground wire by welding or a conductive adhesive at one end to the outer peripheral surface of the annular stator on the printed circuit board Accordingly, an object of the present invention is to provide a motor stator structure that achieves easy stator assembly and easy resin molding.
[0005]
[Means for Solving the Problems]
Motor stator structure according to the present invention, each slot formed along the axial direction of the annular stator, an outer insulating inner side insulating cover portion positioned spaced along the radial direction of the annular stator together formed in ring together provided through an insulating cover having a cover portion, and the scan stator winding in position wound along the axial direction between the inner insulation cover portion and the outer insulating cover, wherein a claw portion upper formed in the outer insulating cover, and the outer insulation is shorter in length along the axial direction than the cover portion and the inner end surface on which is formed on the insulating cover portion, one end of the insulating cover a printed circuit board provided, and a ground wire in which one end is fixed by welding or a conductive adhesive to the outer peripheral surface of the annular stator, between the pawl portion and the upper end face is formed in a ring The above Is held in a state where the cement board is sandwiched, said rear surface of said printed circuit board with the outer periphery of the printed circuit board engages on the inside of the claw portion is in contact on the upper surface, the other end of the pre-Symbol ground wire the printed The configuration is connected to a substrate.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, preferred embodiments of a motor stator structure according to the present invention will be described with reference to the drawings.
1 and 2, reference numeral 1 denotes a ring-shaped stator having a ring shape as a whole and laminated in multiple layers . In each slot 2 formed along the axial direction A of the ring-shaped stator 1, U through the insulating cover 4 having an inner side insulating cover part 4A and the outer insulating cover portion 4B positioned spaced along the radial direction B of the annular stator 1 together are formed in annular, V, W phase A stator winding 3 is wound between the insulating cover portions 4A and 4B along the axial direction A. The inner insulating cover portion 4A is formed to have a shorter length along the axial direction A than the outer insulating cover portion 4B.
[0007]
State wherein between the outer end face 4 b after being formed on the upper to the formed claw portion 4a and the inner insulating cover part 4A of the insulating cover portion 4B, the printed circuit board 5 formed annular is sandwiched The printed circuit board 5 is formed with an electronic circuit portion (not shown) and a printed pattern 6.
The outer periphery of the printed circuit board 5 is engaged with the inside of the claw portion 4a, and the back surface 5a of the printed circuit board 5 is in contact with the upper end surface 4b, and the outer peripheral surface 1a of the annular stator 1 can be bent. One end 6a of the ground wire 6 made of a conducting wire is fixed by welding, spot welding, conductive adhesive or the like, and the other end 6b of the ground wire 6 is connected to the ground pattern 6A (FIG. 2) of the printed circuit board 5. .
[0008]
Therefore, the stator structure 10 configured as shown in FIG. 1 can be integrally solidified by a known resin mold, or can be accommodated by a casing (not shown) without performing the resin mold.
[0009]
【The invention's effect】
Since the motor stator structure according to the present invention is configured as described above, the following effects can be obtained.
That is, by connecting to a printed circuit board which holds the other end of the ground wire fixed one end by welding or a conductive adhesive to the outer peripheral surface of the annular stator on one side of the insulating cover, ground connection of annular stator can be achieved Assembling of the stator structure is greatly facilitated as compared with the prior art, and can greatly contribute to the realization of automatic assembly.
[Brief description of the drawings]
FIG. 1 is a half sectional view showing a motor stator structure according to the present invention.
FIG. 2 is a plan view of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ring-shaped stator 2 Slot 3 Stator winding 4 Insulation cover 4A Inner insulation cover part 4B Outer insulation cover part 4a Claw part A Axial direction
B radial direction 4b upper end 5 printed circuit board 1a outer peripheral surface 6 ground wire 6a one end 6b other end

Claims (1)

Each slot (2) formed along the axial direction (A ) of the annular stator (1) is formed in an annular shape and is spaced apart from each other along the radial direction (B) of the annular stator (1). It is provided via an insulating cover (4) having a side insulating cover part (4A) and an outer insulating cover part (4B), and between the inner insulating cover part (4A) and the outer insulating cover part (4B). second place location to the shaft wound scan stator winding along the direction (a) and (3), wherein the outer insulating cover upper part formed claw portion (4B) and (4a), the outer insulating cover part and the end surface on which is formed in an upper portion of the inner insulation cover unit is shorter in length along the axial direction (a) than (4B) (4A) (4b), at one end of the insulating cover (4) and provided printed circuit board (5), and a one end (6a) is fixed ground wire (6) by welding or a conductive adhesive to the outer peripheral surface (1a) of the annular stator (1), said pawl between parts and (4a) on the end face and (4b) Is held in a state where the printed circuit board (5) formed in a ring shape is sandwiched , the outer periphery of the printed circuit board (5) is engaged with the inside of the claw portion (4a) and the printed circuit board (5) motor stator structure back surface (5a), characterized in that the the constitution that the other end (6b) connected the the printed circuit board (5) of the upper end surface (4b) on the contact, before Symbol ground wire (6) of .

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