KR20030066365A - Stator support device of motor and manufacturing method thereof - Google Patents

Abstract

The present invention realizes the rigid and reliable fixing and mounting of the plug member and the stator core to the bearing housing with a simplified structure, and eliminates the caulking or bonding process, thereby manufacturing the stator support mechanism of the brushless motor and the support mechanism. To provide a method, the bearing housing 1 is press-fitted into the attachment hole 2a of the stator base 2, and the attachment portion 1a is fixedly attached to the stator base 2 by caulking or the like. In addition, the circuit board 3 is mounted on the surface opposite to the attachment portion 1a of the bearing housing 1 of the stator base 2. In addition, the center hole 5a of the stator core 5, which is accommodated in the outer circumferential large diameter step step portion 1b of the bearing housing 1 and the coil 4 is wound, has an outer circumferential middle diameter portion of the bearing housing 1. It is fitted in (1c). In addition, the bearing 6 is press-fitted to the inner peripheral portion 1d of the bearing housing 1 to support the rotation shaft 7. A stopper member 9 is attached to the opening 1e of the bearing housing 1 to fix the oil packing 8 and the stator core 5.

Description

Stator support mechanism of motor and manufacturing method of this support mechanism {STATOR SUPPORT DEVICE OF MOTOR AND MANUFACTURING METHOD THEREOF}

The present invention relates to the structure of an outer rotor type brushless motor. More specifically, it relates to a support mechanism of a stator and a brushless motor having the mechanism.

The outer rotor type brushless motor has a bearing housing fixedly attached to the center of the stator base, and at the inner circumference of the bearing housing, the shaft fixedly attached to the center of the cup-shaped rotor yoke is rotatable. It has bearings to support it.

In addition, a round annular magnet having a plurality of magnetic poles is fixedly attached to the inner circumference of the cup-shaped rotor yoke. In the outer circumferential portion of the bearing housing, a stator in which an armature is formed by winding a coil around a plurality of arm portions projecting in a radial direction from the center portion of the stator core on which the magnetic plates are laminated is fixed against the magnetic pole of this round annular magnet. It is attached and supported.

The brushless motor configured as described above is generally used for a spindle motor of a disc drive device (hereinafter, abbreviated as device). In recent years, in particular, the device has been required to have high performance such as miniaturization, high speed, low noise, low vibration, and long life, and the same high performance is required for the spindle motor constituting the device. In order to cope with such high performance these days, a hydrostatic fluid bearing is adopted as a brushless motor bearing.

The hydrodynamic fluid bearing forms a dynamic pressure generating groove such as a herringbone groove on the outer circumference of the rotating shaft or the inner circumferential surface of the bearing sleeve which is slide-bonded to the rotating shaft, and fills the lubricating fluid in the gap between the rotating shaft and the sleeve and rotates the rotating shaft. It is a bearing of the structure which generate | occur | produces a pressure in the lubricating fluid of this clearance gap, and rotates and supports the bearing of a rotor by this pressure.

The hydrodynamic fluid bearing configured as described above can reduce the size of the bearing device itself, and interpose fluid between the rotating shaft and the bearing, so that it is excellent in low noise, low vibration and impact resistance, and can take a large load allowance, and prevent the rotation of the rotating shaft. It has a very small performance that can be suppressed.

However, since the majority of the lubricating fluid filled in the hydrodynamic fluid bearings uses oil, leakage and depletion of this oil may lead to significant performance degradation of the motor, or the spilled oil may scatter and contaminate the device. A cap member is attached to the opening of the bearing housing to prevent leakage of oil.

However, in the structure of the stator configured in this way, the fixing work of the bearing housing and the stator core, and the fixing attachment of the stopper member and the bearing housing have been made by press fitting, caulking, or bonding with an adhesive. Due to the shock at the time, repeated expansion and contraction according to the temperature difference in the atmosphere used, variation in the coating amount of the adhesive, and the like, the fixing force is lowered, and the stator core or the cap member may be peeled off from the bearing housing.

In addition, at the assembly site of the motor, the caulking operation and the bonding operation require a separate process, resulting in a high cost in terms of cost, and it is also difficult to realize the low cost required by the market.

SUMMARY OF THE INVENTION The present invention solves the above drawback by inserting and attaching a stopper member for preventing leakage of oil as a lubricating fluid into an opening of a bearing housing, and inserting a stopper core wound with a coil and winding a coil into the bearing housing. The present invention provides a stator support mechanism for a brushless motor that is inexpensive and simplified by eliminating the process of caulking or gluing, and realizing to firmly and reliably fix the plug member and the stator core to the bearing housing.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the principal part of the stator support mechanism which shows 1st Embodiment of this invention.

It is a perspective view which shows the bearing housing in FIG.

It is a perspective view which shows the plug member in FIG.

4 is an explanatory diagram illustrating the procedure of FIG. 1.

FIG. 5 is a sectional view showing the principal parts of the structure of the motor provided with the stator support mechanism of FIG. 1. FIG.

6 is a sectional view of principal parts of a stator support mechanism showing a second embodiment of the present invention.

FIG. 7 is a perspective view illustrating the closure member in FIG. 6. FIG.

8 is a sectional view showing the main parts of a stator support mechanism showing a third embodiment of the present invention.

It is a perspective view which shows the plug member in FIG.

* Description of the symbols for the main parts of the drawings *

1: bearing housing 2: stator base

3: circuit board 4: coil

5: stator core 6: bearing

7: rotating shaft 8: oil packing

9: plug member 10: oil

In order to solve the above problems, as in the invention of claim 1, the stator has a bearing for supporting the rotational axis of the rotor in the inner circumference, inserts a stopper member for preventing the leakage of lubricating fluid in the opening, and winds the coil around the outer circumference. A stator support mechanism of a motor comprising a bearing housing for fixedly attaching a core, comprising: a receiving portion formed on a part of an outer circumference of an opening side of a bearing housing, and a locking portion provided on a side of a stopper portion and engaged with the receiving portion; It can achieve by providing a separation prevention means.

In addition, as in the invention of claim 2, a stopper portion that is pressed in the radial direction from the stator core is provided in the locking fixture of the release preventing means, or, as in the invention of claim 3, This can be achieved by providing a stator pressing portion that presses the stator core in the axial direction in the locking fixing portion.

On the other hand, the receiving portion, as in the invention of claim 4, the projection portion provided near the outer peripheral edge of the opening side of the bearing housing, the locking portion is made of an elastic portion provided in the stopper portion, The said stopper part which has a window part fitted to a projection part, The stopper part is equipped with the stopper part pressed radially from the stator core like the invention of Claim 5, This stopper part is an invention of Claim 6 As described above, this can be achieved by a flange portion which is pressed against the peripheral wall of the central hole of the stator core and fits the window portion into the projection portion.

Further, as in the invention according to claim 7, the receiving portion is a concave groove formed on the outer periphery of the opening side of the bearing housing, and the locking fixing portion is formed of an elastic portion provided in the stopper portion, and the recess is formed as the locking fixing portion. The end face fitted into the groove is a plug portion having an L-shaped claw portion, and as in the invention described in claim 8, the cylindrical side portion of the plug portion is a stopper portion pressed radially from the stator core. The side part can be achieved by cutting the opening part which presses in the circumferential wall of the center hole of the stator core and fits the said toenail part into the said recessed groove like the invention of Claim 9.

Further, as in the invention according to claim 10, the receiving portion is a concave groove formed on the outer periphery of the opening side of the bearing housing, and the locking fixing portion is formed of an elastic portion provided in the stopper portion, and the recess is a locking portion. An upper surface side fitted into the groove is cut and has a lance processing portion that is bent inward. The stopper portion has a stopper portion pressed radially from the stator core as in the invention according to claim 11. Like the invention described in claim 12, the pressing part can be achieved by pressing the circumferential wall of the center hole of the stator core to form a flange part that fits the lance processing part into the concave groove.

On the other hand, in the method of manufacturing the stator support mechanism of the motor, as in the invention described in claim 13, the separation preventing means according to claims 1 to 3 is prepared, the bearing housing is fixedly attached to the stator base, After press-fitting the bearing to the predetermined position of the inner circumference, the lubricating fluid is filled, and the plug member is inserted into the opening of the bearing housing, and the center hole of the stator core wound with the coil is prevented from being detached from the plug member. It can be achieved by inserting into the outer circumference of the bearing housing.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described according to drawing.

BRIEF DESCRIPTION OF THE DRAWINGS It is sectional drawing of the principal part of the stator support mechanism which shows 1st Embodiment of this invention. In FIG. 1, the bearing housing 1 is press-fitted into the attachment hole 2a of the stator base 2, and the attachment portion 1a is fixedly attached to the stator base 2 by caulking or the like. In addition, the circuit board 3 is mounted on the surface opposite to the attachment portion 1a of the bearing housing 1 of the stator base 2.

Moreover, the center hole 5a of the stator core 5 which wound the coil 4 accommodated in the step 1b of the large diameter portion of the outer circumference of the bearing housing 1 is the outer circumferential middle diameter portion of the bearing housing 1 ( 1c). In addition, the bearing 6 is press-fitted to the inner peripheral portion 1d of the bearing housing 1 to support the rotary shaft 7. A stopper member 9 is attached to the opening 1e of the bearing housing 1 to fix the oil packing 8 and the stator core 5.

2 and 3 show, in perspective, the bearing housing 1 and the closure member 9, which further illustrate this attachment structure. In Fig. 2, the bearing housing 1 is made of a metal material or a resin material, and has a wedge shape inclined in a direction opposite to the opening 1e near the opening 1e of the outer diameter 1f. The projection part 1g whose diameter of a part is smaller than the diameter of the center hole 5a of the stator core 5 is formed.

In addition, in FIG. 3, the plug member 9 is a cup shape which consists of a metal or resin elastic member, and the cylindrical side surface has the flange part 9e and the bending part 9d cut | disconnected to the opening side, The inner diameter of the cylinder is larger than the diameter of the outer periphery small diameter portion 1f of the bearing housing 1 and smaller than the diameter of the base portion of the protrusion 1g of the bearing housing 1, and the flange portion 9e. The outer diameter of the hole is slightly larger than the diameter of the center hole 5a of the stator core 5, and a hole 9a having a diameter larger than the outer diameter of the rotation shaft 7 is formed at the center thereof. In addition, the cylindrical side portion 9b having the flange portion 9e is provided with a window portion 9c having a size that can be fitted to the wedge-shaped protrusion portion 1g of the bearing housing 1, and the bending portion 9d is an opening portion. Of the stator core 5 is cut and bent to a position that draws a circle larger than the diameter size of the central hole 5a of the stator core 5.

1, 2 and 3, the stopper member 9 attached to the opening 1e of the bearing housing 1 and the fixing state of the stator core 5 by the stopper member 9 will be described. do. That is, the flange portion 9e of the plug member 9 attached to the opening 1e of the bearing housing 1 with the oil packing 8 interposed around the center hole 5a of the stator core 5. It is pressed against the wall, and the window part 9c is fitted in the protrusion part 1g of the bearing housing 1. Further, the tip of the bending portion 9d of the plug member 9 is near the edge 5b of the central hole 5a of the stator core 5 fitted up to the outer circumferential large diameter stepped portion 1b of the bearing housing 1. Press and hold.

On the other hand, the oil packing 8 is for preventing the outflow of oil which is a lubricating fluid, and the center hole 9a is formed with the minimum clearance which does not inhibit the rotation of the rotation shaft 7. The oil packing 8 may be removed as long as this oil leakage prevention can be combined with the central hole 9a of the plug member 9.

In addition, the protrusion part 1h formed in the axial direction in the outer peripheral middle diameter part 1c of the bearing housing 1 in FIG. 2 is a part of the stator core 5 fitted in this outer peripheral middle diameter part 1c. Positioning member. If the positioning can be performed by the assembling jig, the protrusion 1h may be removed. On the other hand, the protrusion part 1g of the bearing housing 1 and the window part 9c and the bending part 9d of the plug member 9 which comprise the separation prevention means which concern on this invention should just be provided in one or more places, respectively.

4 illustrates a method of manufacturing a stator support mechanism according to the present invention.

First, the attachment portion 1a of the bearing housing 1 is inserted into the attachment hole 2a of the stator base 2 and fixedly attached by caulking or the like. In addition, the fixed attachment may be the integral molding method of welding, press injection, adhesion | attachment, insert molding, or insert molding. Then, the circuit board 3 is mounted on the side opposite to the attachment portion 1a of the stator base 2. On the other hand, the circuit board 3 may be a structure and a circuit part integrated like an iron board | substrate. Next, the bearing 6 is press-fitted to the predetermined position in the inner peripheral part 1d of the bearing housing 1. After that, while the oil packing 8 is stored therein, the window portion 9c of the plug member 9 is fitted to the protrusion 1g of the bearing housing 1 so that the outer circumferential small diameter portion 1f of the bearing housing 1 is fitted. ).

Then, the insertion guide portion 5c of the stator core 5 in which the coil 4 is wound is fitted to the core insertion positioning protrusion 1h of the bearing housing 1, and the center hole 5a is fitted into the plug member. While inserting (9), it fits in the outer peripheral middle diameter part 1c until it contacts the outer diameter large diameter step difference part 1b of the bearing housing 1. As a result, the flange portion 9e of the plug member 9 is pressed against the circumferential wall of the central hole 5a of the stator core 5, so that the window portion 9c is provided to the protrusion 1g of the bearing housing 1. At the same time, the bent portion 9d of the stopper member 9 opens through the central hole 5a of the stator core 5, and the peripheral surface of the central hole 5a of the stator core 5 is opened. By pressing, the stator core 5 and the closure member 9 are fixedly attached to the bearing housing 1. In addition, the stator core 5 which is fixedly attached can be easily detached from the bearing housing 1 by closing the bending part 9d of the plug member 9 with a dedicated jig, so that the model can be changed and the parts can be recycled. Done.

5 is a sectional view showing the principal parts of the structure of the brushless motor provided with the stator support mechanism according to the first embodiment of the present invention. In Fig. 5, the bearing housing 1 is fixedly attached to the stator base 2, and furthermore, the circuit board 3 is mounted on the stator base 2.

In addition, on the inner circumferential portion of the bearing housing 1, a rotary shaft 7 press-fitted to the center of the rotor yoke 12 in which a cup-shaped, round-shaped magnet 11 having a plurality of magnetic poles is fixedly attached to the inner circumferential surface thereof. And a bearing 6 for rotatably supporting the bearing 6, and a stopper member 9 for preventing leakage of oil sandwiching the oil packing 8 therebetween is fixedly attached.

Moreover, the stator core 5 in which the coil 4 was wound is fixedly attached to the outer peripheral part of this bearing housing 1. On the other hand, the fixed attachment of the stator core 5 and the closure member 9 to the bearing housing 1 is such that the stator core 5 and the closure member 9 are mutually connected through the bearing housing 1 as described above. It is made by fitting.

6 is a sectional view showing the main parts of the stator support mechanism showing the second embodiment of the present invention. FIG. 7 is a perspective view showing details of the closure member according to FIG. 6. FIG. The configuration of FIG. 6 is basically the same as that of FIG. 1, but the difference is that the outer peripheral portion of the bearing housing 21 has a concave groove at a position overlapping the center hole 5a of the stator core 5 of the diameter portion 21f. 21 g) is formed.

In addition, as shown in Fig. 7, the plug member 29 has a cup shape made of an elastic member made of metal or resin, and is opened toward the outer side of the opening portion on the cylindrical side thereof, and the tip end thereof is the center hole of the stator core 5. It has the bending part 29d cut | disconnected to the position which draws the circle larger than the diameter size of 5a).

Moreover, the cutout part is provided in the position different from the bending part 29d of the cylindrical side surface, and the side notch part 29g is formed. On the other hand, this side notch part 29g is formed with the opening edge circumference 29e slightly open toward the outer side, and the claw portion 29f which is L-shaped in cross section and bent inward is formed on the opening edge circumference 29e. Have. The inner diameter of the plug member 29 is larger than the diameter of the outer peripheral diameter 21f of the bearing housing 21, and the outer diameter of the circumferential edge 29e of the side notching portion 29g is the stator core ( It is slightly larger than the diameter of the center hole 5a of 5), and the inner diameter of the claw portion 29f is larger than the diameter of the circumferential wall 21i, which is the bottom of the concave groove 21g of the bearing housing 21. Formed.

When the plug member 29 configured as described above is attached to the opening 21e of the bearing housing 21 with the oil packing 8 therebetween, the side notch 29g of the plug member 29 is the stator core 5. The claw portion 29f is fitted into the concave groove 21g of the bearing housing 21 by being pressed by the circumferential wall of the central hole 5a of the center. Further, the tip of the bending portion 29d of the plug member 29 is near the edge 5b of the central hole 5a of the stator core 5 fitted to the outer circumferential large diameter stepped portion 21b of the bearing housing 21. Press.

In addition, the cap member 29 is fixedly attached to the bearing housing 21 while the oil packing 8 is tightly fitted, and the stator core 5 is fixedly attached to the bearing housing 21 by the cap member 29. Will be. In addition, although the recessed groove 21g of the bearing housing 21 may be formed in the whole periphery of the outer periphery small diameter part 21f, you may form in part by the width which the claw part 29f can fit.

8 is a sectional view showing the main parts of a stator support mechanism showing a third embodiment of the present invention. FIG. 9 is a perspective view showing details of the closure member according to FIG. 8. FIG. Although the structure of FIG. 8 is basically the same as that of FIG. 1, the difference that the recessed groove 31g is formed in the outer peripheral diameter part 31f of the bearing housing 31 is different.

In addition, as shown in Fig. 9, the plug member 39 has a cup shape formed of an elastic member made of metal or resin, and the cylindrical side surface portion is opened toward the outer direction of the opening portion, and the tip end thereof is the center hole of the stator core 5. It has the bending part 39d cut | disconnected to the position which draws the circle larger than the diameter size of 5a).

Moreover, the flange part 39e is provided in the opening side edge part at the cylindrical side surface. And at the position different from the bending part 39d, the toe part 39f which is bent toward the inside of a cylinder by notching the upper plate side of a cylindrical side surface is formed. The inner diameter of the plug member 39 is larger than the diameter of the outer peripheral diameter portion 31f of the bearing housing 31, and the outer diameter of the flange portion 39e is the central hole 5a of the stator core 5. It is formed slightly larger than the diameter of. On the other hand, the diameter size drawn by the tip of the claw portion 39f is larger than the diameter size of the circumferential wall 31i serving as the bottom of the concave groove 31g of the bearing housing 31.

When the plug member 39 configured as described above is attached to the opening 31e of the bearing housing 31 with the oil packing 8 therebetween, the flange portion 39e of the plug member 39 is the stator core 5. Is pressed against the inner wall of the central hole 5a, and the claw portion 39f is fitted into the concave groove 31g of the bearing housing 31. Further, the tip of the bending part 39d of the plug member 39 is near the edge 5b of the central hole 5a of the stator core 5 fitted up to the outer circumferential large diameter stepped portion 31b of the bearing housing 31. Press.

As such, the closure member 39 is fixedly attached to the bearing housing 31 while the oil packing 8 is tightly fitted, while the stator core 5 is securely attached to the bearing housing 31 by the closure member 39. Will be. On the other hand, 31 g of recessed grooves of the bearing housing 31 may be formed in the whole periphery of the outer peripheral diameter part 31f, but may be formed in one part with the width which the claw part 39f can fit.

As described above, according to the invention described in claim 1, a stator core having a bearing for supporting a rotating shaft of the rotor in the inner circumference, inserting and attaching a stopper member for preventing leakage of lubricating fluid in the opening, and winding a stator core wound with a coil in the outer circumference A stator support mechanism of a motor comprising a bearing housing for fixed attachment, wherein the stator supporting mechanism of the motor comprises a receiving portion formed on a part of the outer circumference of the opening of the bearing housing, and a locking portion provided on the side of the stopper and engaged with the receiving portion. By providing means, the closure member can provide a rigid and reliable fixing attachment to the outer periphery of the opening side of the bearing housing.

In addition, according to the invention of claim 2, a stopper portion that is pressed radially from the stator core is provided in the locking fixing portion of the release preventing means, or according to the invention of claim 3, the locking of the release preventing means By providing a stator pressing portion that presses the stator core in the axial direction to the stator, the plug member can firmly attach the outer periphery of the opening of the bearing housing and the stator core to the bearing housing respectively.

On the other hand, according to the invention of claim 4, the receiving portion is a protrusion provided near the outer peripheral edge of the opening side of the bearing housing, the locking fixing portion is formed of an elastic portion provided in the stopper portion, According to the invention described in claim 5, the stopper portion includes a stopper portion pressed radially from the stator core according to the invention described in claim 5, and the stopper portion is provided in the invention according to claim 6 According to the present invention, it is possible to provide a flange portion which is pressed against the circumferential wall of the center hole of the stator core and fits the window portion into the projection portion.

Further, according to the invention of claim 7, the receiving portion is a recessed groove formed on the outer periphery of the opening side of the bearing housing, and the locking fixing portion is formed of an elastic portion provided in the stopper portion, and the recessed groove is the locking fixing portion. According to the invention described in claim 8, the cylindrical side portion of the plug portion is a stopper portion pressed radially from the stator core, and the cylindrical side portion is a claim. According to the invention of 9, it can provide by cutting the opening part which is pressed by the circumferential wall of the center hole of the said stator core, and inserts the said toenail part into the said recessed groove.

In addition, according to the invention of claim 10, the receiving portion is a recessed groove formed on the outer periphery of the opening side of the bearing housing, and the locking fixing portion is formed of an elastic portion provided in the stopper portion, and the recessing portion is the recessing portion. The upper surface side which fits into a groove | channel is cut off and it is set as the stopper part which has the lance process part curved inward, The stopper part is provided with the stopper press part which was pressed radially from the stator core according to the invention of Claim 11. According to the invention of Claim 12, a stopper part can be provided by making it into the flange part which presses against the circumferential wall of the center hole of the stator core, and fits the said lance process part into the said recessed groove.

On the other hand, according to the invention as set forth in claim 13, the method for manufacturing a stator support mechanism of the motor includes preparing the separation preventing means as set forth in claims 1 to 3, and fixedly attaching the bearing housing to the stator base. After press-fitting the bearing to a predetermined position of the main part, the lubricating fluid is filled, the plug member is inserted into the opening of the bearing housing, and the center hole of the stator core in which the coil is wound is inserted into the stopper prevention means of the plug member. It can be provided by inserting at the same time to the outer peripheral portion of the bearing housing.

In addition, by fixing the release preventing means of the plug portion to the dedicated jig, the stator core fixedly attached can be easily detached from the bearing housing, thereby making it possible to change the model and recycle the parts.

Claims (13)

Stator bearing bearing supporting the rotation axis of the rotor to the inner circumferential portion, the opening portion and the outer circumferential portion of the bearing housing, inserting and attaching a stopper member for preventing leakage of lubricating fluid in the opening portion, and winding the coil around the outer circumference portion In the stator support mechanism of the motor to which the core is fixedly attached, A stator supporting mechanism for a motor, comprising: a receiving portion formed on a portion of an outer circumference of the opening side of the bearing housing; and a release preventing means formed on a side surface of a stopper portion, and a locking portion coupled to the receiving portion. The method of claim 1, A stator support mechanism for a motor, characterized in that a stopper portion that is pressed radially from the stator core is provided in the locking portion. The method of claim 1, A stator support mechanism for a motor, characterized in that a stator pressing portion for pressing the stator core in the axial direction is provided in the locking fixing portion. The method of claim 1, The receiving portion is a projection portion provided near the outer peripheral edge of the opening side of the bearing housing, and the locking portion is formed of an elastic portion provided in the closure portion, and the closure portion having a window portion fitted to the projection portion as the locking portion. Stator support mechanism of the motor, characterized in that. The method of claim 4, wherein A stator support mechanism for a motor, characterized in that the stopper portion has a stopper pressing portion pressed radially from a stator core. The method of claim 5, And the stopper pressing portion has a flange portion which is pressed against the circumferential wall of the central hole of the stator core and fits the window portion into the projection portion. The method of claim 1, The receiving portion is a concave groove formed on the outer periphery of the opening side of the bearing housing, the locking fixing portion is made of an elastic portion provided in the stopper portion, the cross section fitted into the concave groove as the locking fixing portion is L-shaped claw A stator support mechanism for a motor, comprising a plug portion having a portion. The method of claim 7, wherein A stator support mechanism for a motor, wherein the cylindrical side portion of the plug portion is a plug pressing portion pressed radially from the stator core. The method of claim 8, And the cylindrical side portion is pressed against the circumferential wall of the central hole of the stator core so that the opening for fitting the toenail into the concave groove is cut. The method of claim 1, The receiving portion is a concave groove formed on the outer periphery of the opening side of the bearing housing, the locking fixing portion is made of an elastic portion provided in the stopper portion and the upper surface side to be fitted to the concave groove as the locking fixing portion is cut off the inside A stator support mechanism for a motor, comprising a stopper portion having a lance processing portion bent toward. The method of claim 10, The stopper support mechanism of the motor, characterized in that the stopper portion has a stopper pressing portion pressed radially from the stator core. The method of claim 11, And said stopper pressing portion has a flange portion pressed against the circumferential wall of the central hole of said stator core to fit said lance processing portion into said recessed groove. After the separation preventing means according to claim 1 is prepared, the bearing housing is fixedly attached to the stator base, the bearing is pressed into a predetermined position of the inner circumference of the bearing housing, and then a lubricating fluid is filled therein, Stator support of the motor, characterized in that the stopper member is inserted into the opening of the bearing housing and the center hole of the stator core wound with the coil is inserted into the outer circumferential part of the bearing housing while being inserted into the separation preventing means of the stopper member. Method of manufacturing the appliance.