KR20070054373A - Motor with stator made of soft magnetic powder material - Google Patents

Abstract

The present invention relates to a motor having a stator made of a soft magnetic powder material, the motor comprising: a first stator having a plurality of screw grooves formed on one side along an outer circumferential surface thereof and formed by compression of the soft magnetic powder; A first cover is inserted into one side of the first stator, the first engaging position adjusting portion consisting of a plurality of through holes arranged in the direction in which the first stator is fitted, the first cover is formed in a plurality along the periphery of the first stator, the first cover is attached to the first stator It includes a plurality of first coupling bolts that are selectively screwed through any one of the through holes of the first coupling position adjusting portion to be screwed into the screw groove of the first stator so as to change the coupled position. Therefore, the present invention can be easily assembled between the stator and the cover, it is possible to easily change the specifications, such as the length of the interior space, and therefore, even if the product having a different specification to use the cover and the stator in common to produce Has the effect of reducing

Stator, soft magnetic powder, cover, mating position adjusting part

Description

Motor with stator made of soft magnetic powder material {MOTOR HAVING A STATOR FORMED FROM SOFT MAGNETIC POWDER MATERIAL}

1 is an exploded view showing the main part of a motor according to the prior art,

2 is an exploded view showing the main part of a motor having a stator made of a soft magnetic powder material according to a first embodiment of the present invention;

3A and 3B are views for explaining the operation of a motor having a stator made of soft magnetic powder material according to the first embodiment of the present invention;

4 is an exploded view showing the main part of a motor having a stator made of a soft magnetic powder material according to a second embodiment of the present invention;

5A and 5B are views for explaining the operation of a motor having a stator made of a soft magnetic powder material according to a second embodiment of the present invention.

6 is an exploded view showing the main part of a motor having a stator made of a soft magnetic powder material according to a third embodiment of the present invention;

7A and 7B are views for explaining the operation of a motor having a stator made of a soft magnetic powder material according to a third embodiment of the present invention.

8 is an exploded view showing the main part of a motor having a stator made of a soft magnetic powder material according to a fourth embodiment of the present invention;

9A and 9B are views for explaining the operation of a motor having a stator made of soft magnetic powder material according to a fourth embodiment of the present invention.

<Description of Symbols for Main Parts of Drawings>

110: first stator 111: screw groove

120: first cover 121: first coupling position adjustment unit

122: through hole 130: first coupling bolt

210: second stator 211: second engagement position adjustment unit

212: screw groove 220: second cover

221: through hole 230: second coupling bolt

310: third stator 311: engaging projection

320: third cover 321: third coupling position adjustment unit

322: coupling hole 410: fourth stator

411: fourth coupling position control unit 412: coupling groove

420: fourth cover 421: engaging projection

The present invention relates to a motor having a stator made of a soft magnetic powder material, and has a structure that allows the stator to be coupled with the cover, thereby facilitating the coupling between the stator and the cover without using a separate coupling member. A motor having a stator made of magnetic powder material.

In general, a motor is a device that obtains rotational force by converting electrical energy into mechanical energy, and is widely used in not only home appliances but also industrial equipment. These motors are largely divided into a direct current motor and an alternating current motor, and a stator in which a coil is wound, and a rotor installed rotatably with a gap in the stator so as to cause rotation by a rotating magnetic flux generated from the coil. Include.

On the other hand, the motor is fixed to the casing or the cover by the stator in a variety of ways, the conventional motor will be described with reference to the accompanying drawings as follows.

1 is an exploded view showing the main part of a motor according to the prior art. As shown, a conventional motor 10 has a plurality of bolts B and nuts (B) between a pair of covers 11 and 12 in which a shaft 14 is rotatably installed by bearings 14a and 14b. The stator 13 is fixed by N).

The covers 11 and 12 are formed with a plurality of insertion holes 11a and 12a at positions corresponding to each other so that the bolt B penetrates.

The stator 13 has a rotor 15 having a shaft 14 fixed to the center thereof and is provided with a gap therein, and is formed by lamination of silicon steel sheets having the same shape. 13a) is formed.

Such a conventional motor 10 matches the insertion holes 11a, 12a, 13a with the stator 13 positioned between the covers 11, 12, and then matches the insertion holes 11a, 12a, The stator 13 and the covers 11 and 12 are coupled to each other by inserting the bolt B into the 13a and fastening with the nut N.

However, the conventional motor 10 must be assembled using bolts B having a considerable length by simultaneously coupling the covers 11 and 12 to both sides of the stator 13, as well as a pair of covers with the stator 13. Since the 11 and 12 must be assembled at the same time, the insertion holes 11a, 12a, and 13a must be coincident with each other.

In addition, since the conventional motor 10 is used in a variety of products and equipment, etc., there is no doubt that the size and structure of the motor 10 may vary. As a result, the cover as well as the stator may be changed when changing the specifications such as the space length or height inside the motor 10. There was a problem to be newly produced.

The present invention is to solve the above-mentioned conventional problems, an object of the present invention is easy to assemble between the stator and the cover, it is possible to easily change the standard, such as the internal space length, and thus have different specifications The present invention provides a motor having a stator made of a soft magnetic powder material, which can reduce the production cost by allowing the cover and the stator to be used in common.

The present invention for achieving the above object, in the motor, a plurality of screw grooves are formed on one side along the outer circumferential surface, the first stator is formed by the compression of the soft magnetic powder, and one side of the first stator A first cover including a plurality of through holes arranged in a direction in which the first stator is fitted, a first cover formed in plural along one side, and a position at which the first cover is coupled to the first stator so as to be changed; And a plurality of first coupling bolts that selectively pass through any one of the through holes of the first coupling position adjusting unit and are screwed to the screw groove of the first stator.

In addition, the present invention, in the motor, the second engaging position adjusting portion consisting of a plurality of screw grooves arranged in the longitudinal direction is formed in a plurality along the outer peripheral surface on one side, and the second stator formed by the compression of the soft magnetic powder and A second cover fitted to one side of the second stator and having a plurality of through holes coinciding with any one of the screw grooves of the second coupling position adjusting part along a circumference, and the second cover being coupled to the second stator; It characterized in that it comprises a plurality of second coupling bolt that is selectively screwed into any one of the screw groove of the second coupling position adjusting portion through the through hole so as to change.

In addition, the present invention, in the motor, is formed so that a plurality of engaging projections are arranged on one side along the outer circumferential surface, the third stator is formed by the compression of the soft magnetic powder, and is fitted to one side of the third stator, the third The third cover is provided with a plurality of third coupling position adjustment portion formed of a plurality of engaging holes arranged in the direction in which the third stator is fitted and coupled to the coupling projection selectively coupled to change the position on the stator It is characterized by including.

In addition, the present invention, in the motor, the fourth engaging position adjusting portion consisting of a plurality of engaging grooves arranged in the longitudinal direction is formed in a plurality along the outer peripheral surface on one side, and the fourth stator formed by the compression of the soft magnetic powder and A fourth protrusion formed along the inner circumferential surface of the fourth stator, the coupling protrusion being selectively coupled to any one of the coupling grooves of the fourth coupling position adjusting portion so as to be coupled to the fourth stator by changing its position; It characterized in that it comprises a cover.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention.

Fig. 2 is an exploded view showing the main parts of a motor having a stator made of soft magnetic powder material according to the first embodiment of the present invention. As shown, the motor 100 having a stator made of soft magnetic powder material according to the present invention and the first stator 110 is formed by the compression of the soft magnetic powder to form a screw groove 111 on one side; The first cover 120 is fitted to one side of the first stator 110 and the first coupling position adjusting unit 121 is formed, and the first stator 110 and the first cover 120 are coupled to each other. 1 includes a coupling bolt (130).

The first stator 110 is formed with a plurality of teeth (not shown) in which coils (not shown) are wound around the inner circumferential surface at regular intervals, and a rotor (not shown) is rotatably installed with a gap therein, On one side, the screw groove 111 is formed to be arranged in a plurality at regular intervals along the outer circumferential surface.

The first stator 110 may be formed with a screw groove 111 for coupling with the first cover 120 only on one side, and in this embodiment, the first cover 120 by the first coupling bolts 130 on both sides. A plurality of screw grooves 111 are formed on both sides thereof so that the position can be coupled to each other.

The first stator 110 is manufactured by compression of soft magnetic powder. The soft magnetic powder is based on iron-based particles, and each of the soft magnetic powders is coated to be electrically insulated.

The first stator 110 provides a molding space including a shape corresponding to that of the first stator 110 in the compression molding machine so as to be compression molded into soft magnetic powder, fills the molding space with soft magnetic powder, and then compresses a punch. Compression with the member is made so that the thread groove 111 is formed, of course. At this time, the soft magnetic powder may contain a lubricant and / or a binder and may be compressed together.

The first stator 110 becomes a soft magnetic composite (also referred to as "SMC") having a three-dimensional shape by the compression process of the soft magnetic powder, and has a higher degree of freedom than the conventional case using a silicon steel sheet. of freedom) allows the formation of the screw groove 111 unlike the structure in which a large number of silicon steel sheets having the same shape are stacked in the related art.

The first cover 120 has a sufficient internal space to be inserted outside the end of the first stator 110 to adjust the degree of insertion of the first stator 110, a plurality of first at regular intervals along one side Coupling position adjusting unit 121 is formed.

The first cover 120 is composed of a pair of top cover and bottom cover which are respectively coupled to the upper side and the lower side of the first stator 110 as in the present embodiment, each of which is fitted outside the end of the first stator 110. Along with the load, a plurality of first coupling position adjusting units 121 are formed at predetermined intervals along one side circumference.

The first coupling position adjusting unit 121 includes a plurality of through holes 122 arranged in the direction in which the first stator 110 is fitted to the first cover 120.

The first coupling bolt 130 is made of a number, that is, the same number as the number of the screw grooves 111 of the first stator 110, the position where the first cover 120 is coupled to the first stator 110 to change In order to selectively penetrate any one of the through-holes 122 of the first coupling position adjusting portion 121 to be screwed into the screw groove 111 of the first stator 110.

The operation of the motor 100 having a stator made of soft magnetic powder material according to the first embodiment of the present invention having such a structure is performed as follows.

As shown in FIGS. 3A and 3B, the first cover 120 is fitted to both ends of the first stator 110, and then the first coupling bolt 130 is inserted into the through hole of the first coupling position adjusting unit 121. The first stator 110 and the cover 120 are coupled to each other by screwing the screw groove 111 of the first stator 110 through 122. At this time, by selectively fastening the first coupling bolt 130 to any one of the through-holes 122 of the first coupling position adjusting unit 121 to adjust the distance between the first cover 120 inside the motor 100 You can change the length of the space.

As shown in this embodiment, when the through holes 122 of the first coupling position adjusting unit 121 are four for each of the first covers 120, FIG. 3A and the minimum length of the motor 100 are shown. The length can be adjusted in eight steps, including FIG. 3B.

4 is an exploded view showing the main part of a motor having a stator made of a soft magnetic powder material according to a second embodiment of the present invention. As shown, the motor 200 having a stator made of a soft magnetic powder material according to the second embodiment of the present invention is formed by the compression of the soft magnetic powder, so that the second coupling position adjusting unit 211 has a large number. The second stator 210 to be formed, the second cover 220 which is fitted to the second stator 210 and is formed with a plurality of through holes 221, and a plurality of second coupling bolts coupling them to each other ( 230). Hereinafter, the motor 200 having a stator made of a soft magnetic powder material according to the present embodiment will be described in detail with a focus on the differences from the first embodiment.

The second stator 210 is formed by compressing the soft magnetic powder by a compression molding machine, and a plurality of second coupling position adjusting units 211 are formed at intervals along the outer circumferential surface on one side thereof.

Each of the second coupling position adjusting units 211 includes a plurality of screw grooves 212 in the longitudinal direction of the second stator 210.

The second stator 210 is formed not only on one side but also on the other side by a plurality of second coupling position adjusting units 211, respectively, so that the coupling positions of the second cover 220 coupled to both sides by the second coupling bolts 230 are provided. Each can be adjusted.

The second cover 220 is formed in a pair and fitted to both sides of the second stator 210, and the through hole 221 corresponding to any one of the screw grooves 212 of the second coupling position adjusting unit 211. The plurality of through holes 221 is formed in the same number as the number of second coupling position adjusting units 211 formed at one side of the second stator 210.

The second coupling bolt 230 is made of a plurality, the second coupling position adjusting unit 211 through the through hole 221 to change the position where the second cover 220 is coupled to the second stator 210 It is selectively screwed into any one of the screw grooves 212 of.

The operation of the motor 200 having a stator made of a soft magnetic powder material according to the second embodiment of the present invention having such a structure is performed as follows.

Inserting the second cover 220 on both sides of the second stator 210, respectively, the second coupling bolt 230 through the through hole 221 of the second cover 220, the second coupling position adjusting unit 211 By screwing into the screw groove 212 of the second stator 210 and the second cover 220 is assembled, as shown in Figures 5a and 5b, the second coupling bolt 230, the second coupling By selectively fastening to any one of the screw grooves 212 of the position adjusting unit 211, it is possible to adjust the length of the space inside the motor 200 or the overall length of the motor 200.

6 is an exploded view showing the main parts of a motor having a stator made of a soft magnetic powder material according to a third embodiment of the present invention. As shown, the motor 300 having a stator made of a soft magnetic powder material according to a third embodiment of the present invention is formed by the compression of the soft magnetic powder to form a plurality of coupling protrusions 311. The third cover 320 includes a stator 310 and a plurality of third coupling position adjusting parts 321, which are fitted to the third stator 310 and to which the coupling protrusion 311 is coupled. Hereinafter, the motor 300 having a stator made of a soft magnetic powder material according to the present embodiment will be described in detail with reference to the differences of the previous embodiments.

The third stator 310 is formed by compressing the soft magnetic powder by a compression molding machine to protrude so that a plurality of coupling protrusions 311 are arranged along the outer circumferential surface on one side thereof.

The third stator 310 is fitted to both sides such that the third cover 320 is fitted not only to one side but also to the other side so that each of the third covers 320 is coupled by the third coupling position adjusting unit 321. A plurality of coupling protrusions 311 are formed.

The third cover 320 is formed in a pair and fitted to both sides of the third stator 310, respectively, and a plurality of third coupling position adjusting units 321 are formed along one circumference.

The third coupling position adjusting unit 321 is in the direction in which the third stator 310 is fitted to the third cover 320 so that the third cover 320 can be coupled by changing the position on the third stator 310. In addition, the coupling protrusion 311 is formed to be arranged and consists of a plurality of coupling holes 322 to be selectively coupled.

The operation of the motor 300 having a stator made of soft magnetic powder material according to the third embodiment of the present invention having such a structure is performed as follows.

By fitting the third cover 320 to both sides of the third stator 310, the coupling protrusion 311 is inserted into and fixed to the coupling hole 322 of the third coupling position adjusting unit 321 so that the third stator ( 310 and the third cover 320 is assembled. At this time, as shown in Figure 7a and 7b, the engaging projection 311 of the third stator 310 is selectively coupled to any one of the coupling hole 322 of the third coupling position adjusting unit 321 The length of the space inside the motor 300 or the overall length of the motor 300 may be adjusted.

8 is an exploded view showing the main part of a motor having a stator made of a soft magnetic powder material according to a fourth embodiment of the present invention. As shown, the motor 400 having a stator made of a soft magnetic powder material according to the fourth embodiment of the present invention is formed by the compression of the soft magnetic powder, so that the fourth coupling position adjusting part 411 has a large number. The fourth cover 420 formed with a plurality of fourth stator 410 and the coupling protrusion 421 which is fitted to the fourth stator 410 and coupled to the fourth coupling position adjusting unit 411 are formed. Include. Hereinafter, the difference between the present embodiment and the previous embodiments will be described in detail.

The fourth stator 410 is formed by compressing the soft magnetic powder by a compression molding machine, so that a plurality of fourth coupling position adjusting parts 411 are formed at intervals along the outer circumferential surface on one side thereof.

The fourth coupling position adjusting unit 411 is composed of a plurality of coupling grooves 412 arranged in the longitudinal direction.

The fourth stator 410 may adjust a position where each of the fourth covers 420 is coupled by the coupling protrusion 421 by forming a plurality of fourth coupling position adjusting units 411 on one side as well as the other side.

The fourth cover 420 is composed of a pair, the coupling protrusions are fitted to both sides of the fourth stator 410, and selectively coupled to any one of the coupling grooves 412 of the fourth coupling position adjusting unit 411. A plurality of 421s are formed along the inner circumferential surface, and have the same number of coupling protrusions 421 as the fourth coupling position adjusting unit 411 on one side of the fourth stator 410.

The operation of the motor 400 having a stator made of a soft magnetic powder material according to the fourth embodiment of the present invention having such a structure is performed as follows.

Insert the fourth cover 420 on both sides of the fourth stator 410, respectively, and then insert the engaging projection 421 of the fourth cover 420 into the engaging groove 412 of the fourth engaging position adjusting part 411. By assembling the fourth cover 420 to the fourth stator 410, as shown in Figures 9a and 9b, the engaging projection 421 of the fourth cover 420 to the fourth coupling position adjusting unit ( By selectively coupling to any one of the coupling grooves 412 of the 411, the length of the space inside the motor 400 or the overall length of the motor 400 can be adjusted.

As described above, according to the preferred embodiments of the present invention, each of the first to fourth covers 120, 220, 320, and 420 for each of the first to fourth stators 110, 210, 310, and 410 has a relatively short first and second coupling bolts 130, 230, or By coupling the coupling protrusions 311 and 421, respectively, the opening of only one side of the first to fourth stators 110, 210, 310, and 410 is not only possible, but also easy to assemble, and improves convenience during maintenance, and internal space or overall of the motor 100, 200, 300, or 400. By adjusting the length, it is possible not only to respond to the change of the specification of the motor, but also to easily change the dimensions.

In addition, since the first stator (110, 210, 310, 410) is formed by the compression of the soft magnetic powder, it is possible to form the screw groove (111, 212), the engaging projection (311) or the coupling groove (412) is coupled to the first to fourth cover (120, 220, 320, 420) This may have a possible structure.

As described above, the motor having a stator made of a soft magnetic powder material according to the present invention, the object of the present invention can be easily assembled between the stator and the cover, it is easy to change the specifications, such as the internal space length, As a result, even if the product has different specifications, the cover and the stator can be used in common, thereby reducing the production cost.

What has been described above is only an embodiment for carrying out a motor having a stator made of a soft magnetic powder material according to the present invention, and the present invention is not limited to the above-described embodiment, and is claimed in the following claims. As described above, any person having ordinary knowledge in the field of the present invention without departing from the gist of the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (8)

In the motor, The first stator is formed with a plurality of screw grooves along the outer circumferential surface on one side, and formed by the compression of the soft magnetic powder, A first cover fitted to one side of the first stator and having a plurality of first coupling position adjusting parts formed of a plurality of through holes arranged in a direction in which the first stator is fitted; A plurality of first couplings screwed into a screw groove of the first stator by selectively passing through any one of the through holes of the first coupling position adjusting unit so as to change the position at which the first cover is coupled to the first stator; volt A motor having a stator made of soft magnetic powder material comprising a. The method of claim 1, The first cover is composed of a pair and fitted to both sides of the first stator, Wherein the first stator, the screw groove is formed on both sides so as to adjust the engagement position of each of the first cover is coupled by the first coupling bolt A motor having a stator made of soft magnetic powder material, characterized in that. In the motor, A second stator position adjusting portion formed of a plurality of screw grooves arranged in a longitudinal direction, the second stator being formed in plural along an outer circumferential surface at one side thereof, and formed by compression of soft magnetic powder; A second cover fitted to one side of the second stator and having a plurality of through-holes corresponding to any one of the screw grooves of the second coupling position adjusting unit along a circumference; A plurality of second coupling bolts that are selectively screwed into any one of the screw grooves of the second coupling position adjusting portion through the through holes so as to change the position at which the second cover is coupled to the second stator; A motor having a stator made of soft magnetic powder material comprising a. The method of claim 3, wherein The second cover is composed of a pair and fitted to both sides of the second stator, respectively The second stator may be formed on both sides of the second coupling position adjusting portion so as to adjust the coupling position of each of the second cover is coupled by the second coupling bolt A motor having a stator made of soft magnetic powder material, characterized in that. In the motor, A third stator is formed so that a plurality of engaging projections are arranged along the outer circumferential surface on one side, and is formed by the compression of the soft magnetic powder, A third comprising a plurality of coupling holes which are fitted to one side of the third stator, the coupling protrusions are selectively coupled to be coupled to the third stator by changing their positions, and arranged in a direction in which the third stator is fitted; Third cover formed with a plurality of engaging position adjusting portion along the circumference A motor having a stator made of soft magnetic powder material comprising a. The method of claim 5, The third cover is composed of a pair and fitted to both sides of the third stator, respectively Wherein the third stator is the coupling projections are formed on both sides so as to adjust the position where each of the third cover is coupled by the third coupling position adjusting unit A motor having a stator made of soft magnetic powder material, characterized in that. In the motor, A fourth staging position adjusting part formed of a plurality of coupling grooves arranged in a longitudinal direction, the fourth stator being formed in plural along the outer circumferential surface on one side and formed by compression of the soft magnetic powder; Fitted on one side of the fourth stator, a plurality of coupling protrusions are formed along the inner circumferential surface to be selectively coupled to any one of the coupling groove of the fourth coupling position adjusting portion to be coupled to the fourth stator by changing the position Fourth cover A motor having a stator made of soft magnetic powder material comprising a. The method of claim 7, wherein The fourth cover is formed in a pair and fitted to both sides of the fourth stator, The fourth stator may be formed on both sides of the fourth engaging position adjusting portion so as to adjust the position where each of the fourth cover is coupled by the engaging projection, respectively A motor having a stator made of soft magnetic powder material, characterized in that.

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