KR100944150B1 - A laminated stator - Google Patents

Abstract

PURPOSE: A stack stator is provided to simplify an installation structure by maintaining a stack state of the core disks without a support rod and a support frame. CONSTITUTION: A stack stator is formed by stacking a plurality of core disks(100-400). First to fourth inclines(122,124,126,128) are formed on each contact point between outer lines(110) of the core disk. A concave groove is formed on the intermediate point of each incline. A distance from the central point of the core disk to the bottom of the concave groove is equal to the distance between the central point of the core disk to the central point of the outer line. The core disk has an octahedral shape by the first to fourth inclines.

Description

Stacked Stator {A LAMINATED STATOR}

The present invention relates to a stator in which core disks of a generator or an electric motor are stacked front and back.

It improves the existing disc-shaped core disc into square shape, but as each core disc is rotated while being rotated by a certain angle toward the rear, it is possible to secure a larger heat dissipation area than the existing rotor made of disc-shaped core disc. In this regard, the present invention relates to a technology that can simplify the structure of the entire rotor by allowing welding connections to each other.

In general, a generator that generates electromotive force by electromagnetic induction and converts mechanical energy into electrical energy and a motor that generates mechanical driving force by using electrical energy are basically fixedly installed on the inner wall of the housing 1 as shown in FIG. A stator having a cylindrical shape, that is, a stator 100 and a rotor installed inside the stator 100 and rotated by the rotor shaft S and inducing power generation in the stator 100 during the rotation process, That is, the rotor 200 is comprised.

The existing stator 100 has a structure in which the rotor 200 is inserted inside the core disks 10 and 20 in a state of basically stacking disks as shown in FIG. 2.

The stator 100 must have its own heat dissipation structure because the stator 100 continuously generates heat due to mutual electrical reactions during the rotation of the rotor 200.

However, as described above, the existing core disks 10 and 20 are all disks having the same area, and thus the heat dissipation effect is not good because all areas are in close contact with each other in a stacked state.

In addition, the conventional stator 100 is located in the housing 1, the support rods 2 are located on the outer circumferential surface in all directions, and separate support frames 3 are installed at both ends of the stator 100 so that the support frames 3 are each. As the support bar 2 is fixed, the position is fixed and the lamination state is maintained.

However, the support rod 2 is inserted into the gap between the housing 1 and the outer circumferential surface of the stator 100. At this time, the gap between the stator 100 and the housing 1 is narrow, so that the support rod 2 is inserted. It is hard to work.

In addition, since the support frame 3 should be made larger than the diameter of the stator 100, it is inevitably necessary to make the size of the housing 1 unnecessarily large so that the support frame 3 can be accommodated. Therefore, there is a problem that causes a waste of space.

In addition, the support rod (2) and the support frame (3) is a configuration that is inevitably provided in order to maintain the stacking state of the stator 100 purely has no relation to power generation efficiency or heat dissipation efficiency.

The present invention is proposed to solve the problems of the prior art as described above,

First, to improve the structure of each of the core disks to provide a laminated stator that can obtain a self-enhanced heat dissipation effect in a stacked state.

In addition, it is to provide a laminated stator that can simplify the installation structure and reduce the internal space of the generator or the motor by allowing the interconnection itself to maintain a stacked state without a separate support rod and support frame.

The present invention proposed to achieve the above object,

The basic configuration is that the core disks in the form of a plate are laminated along the axial direction,

In the basic configuration, each of the core disks are made of the same angular shape, but is laminated in a rotated form while being increased by a predetermined angle toward the rear.

In addition, when a virtual reference line (B) that divides the angle (A) between the middle point of each line segment forming an outer border with respect to the center point of the core disk (B) is a point that is symmetrical to both sides with respect to the reference line (B) The through part is symmetrically formed,

Each of the core disks is also characterized in that the rotation is laminated to be sequentially increased by the angle between the through.

In addition, the angle between each penetrating portion is characterized in that it is arranged to make an angle equal to three times the angle (A) between the midpoint of the line segment.

Specifically, the shape of each core disk has a rectangular shape, but an inclined surface is formed at each corner portion, and an angle between both ends of the inclined surface from a center point is made of the same angle as the angle between the through portions.

In addition, the angle between both ends of the inclined surface from the center point of the core disk is 30 °, each core disk is characterized in that it is laminated in a rotated state while sequentially increasing by 30 °.

In addition, a groove is formed at the intermediate point of each inclined surface toward the center point of the core disk, and the junction point between the bottom edge of the groove and the outer edge of the core disk located in the stacked state is welded.

The present invention consisting of the above characteristic configuration,

Basically, the edge of each core disk is exposed to the outside than the outer edge of the core disk located in front, there is an advantage that can increase the heat dissipation area is increased by that much.

In addition, by defining the position of the penetrating portion of each core disk, the penetrating portion of each core disk in the laminated state in the laminated state in the rotated state is in communication with each other, and eventually through the entire rotor form the circulation of air through the penetrating portion Since it can be made, there is also an advantage that can further increase the heat radiation effect.

In addition, by forming a welding groove in each core disk and welding the peripheral edge of the core disk located in front of the groove in the laminated state, the entire laminated state of the rotor can be maintained without a separate support rod or support frame, structure Has the advantage of saving installation space as well as being simplified.

Hereinafter, with reference to the configuration illustrated in the drawings will be described embodiments of the specific configuration and its operation of the present invention.

The stacked stator 1000 of the present invention is a part that induces a substantial electrical reaction, and as shown in FIGS. 3 and 4, a plurality of core disks 100, 200, 300 are basically before and after It consists of a laminated structure.

Each of the core disks 100, 200, 300 ... is made in the form of a rectangular plate as a whole, the first, second, third, fourth inclined surface 122 at each point where the line segments 110 of the outer border meet 124, 126, and 128 are formed.

Therefore, each inclined surface 122, 124, 126, 128 has an octagonal shape as a whole.

The reason for forming the inclined surfaces 122, 124, 126 and 128 is that when the core disks 100, 200 and 300 are rotated and stacked, the shape of the stator 1000 is almost circular. To this end, the inclined surface is to have an arc shape of a certain curvature rather than a straight line.

At this time, the setting of the lengths of the inclined surfaces 122, 124, 126, 128 is also important, because, when viewed from the front in the stacked state as shown in FIG. Because it is achieved.

Before describing the length setting method of the inclined surfaces 122, 124, 126, and 128 using FIG. 5, reference numerals of the core disks will be described with reference to the first core disk 100. do.

As shown in FIG. 5, when the core disk 100 is quadrangular, the angle B between the center point A and the midpoint A of each outline segment 110 is 90 ° from the center point. In this state, the center point C is shown. Assuming that there is an angle bisecting the angle B between the adjacent midpoints A from, i.e., an imaginary reference line D of 45 °,

15 degrees to both sides with respect to the reference line (D) to be both ends of the inclined surface 122, the angle between both ends of the inclined surface 122 is 30 ° with respect to the center point.

That is, the length and angle of the inclined surface 122 are formed at an angle corresponding to 1/3 of the angle B between the outer edges 110.

As will be described through the second embodiment below, the angle between both ends of the inclined surface 122 is not limited to 30 ° but is modified according to the square shape of the core disk.

However, the above-described angle setting method between the both ends of the inclined surface 122 is equally applicable to the case where the core disk is a polygon other than a quadrilateral.

The through portion 130 is formed around each corner portion formed with the inclined surface 122 to increase the heat dissipation efficiency, and the through portion 130 is formed at a point inclined 15 ° to the left and right with respect to the reference line D. It is formed by dividing the first and second through portions 132 and 134, and the angle between the center points of the first and second through portions 132 and 134 is also 30 °.

The angle between each of the through portions 132 and 134 is also deformed according to the shape of the core disk, but as described above, a method of forming an angle of 1/3 of the angle B between the midpoints of the outer line segment 110 may be achieved. It is always the same.

In this case, in order to further increase the heat dissipation efficiency, an auxiliary through part 135 may be additionally formed between the first and second through parts 132 and 134 as shown in the drawing.

The auxiliary through part 135 is also located at a point symmetrically with respect to the reference line D, and the angle between the forming position and the auxiliary through part 135 is not very important but is exposed from the front core disk when stacked. All the auxiliary through parts 135 are to be communicated back and forth.

In addition, the groove 140 is formed at the intermediate point of the inclined surface 122, that is, at the point where the inclined surface 122 intersects the reference line D, and the groove 140 is formed at each core disk 100 ( 200) (300) ... are the welded portions between the discs in a stacked state.

At this time, the depth of formation of the groove 140 is the distance (E) from the center point (C) to the inner bottom of the groove 140 is the same as the distance (F) from the center point (C) to the intermediate point of each outer line segment (110). Do it.

In the center of the core disk 100, an installation hole 150 in which a rotor is located is formed, and an insertion groove 152 into which a stator winding (not shown) is fitted is formed at an edge of the installation hole 150, and each insertion groove ( 152 are formed at intervals that can be in communication with the insertion groove of the other core disk even if the core disks are stacked in a rotated state.

Hereinafter, a process of stacking core disks having the above structure will be described.

The core disks are basically stacked back and forth along the rotor shaft direction as shown in FIG. 3, but are stacked in a state of being rotated at an angle instead of simple stacking.

In other words, the first core disk 100 in the front is positioned in a normal state, and the second core disk 200 thereafter is stacked in a state of being rotated by 30 °, and the third core disk 300 is a second core disk ( The stack is rotated by 30 ° more than 200, that is, rotated by 60 ° with respect to the first core disk 100.

And the fourth core disk 400 is stacked in a state that is rotated 30 ° than the third core disk (300).

At this time, as described above, since the angle between each of the core segments 100, 200, 300, 400, ... (the angle between 1100 is 90 degrees, the fourth core disk 400 is the first core disk 100). Is in the same state as.

As described above, when the core disk is a quadrangular shape, the core disk is rotated and stacked in increments of 30 °, that is, 1/3 of the angle B between the outer edges 110.

That is, in the case of a four-core core disk, the angle between both end points of the inclined surface 122 and the angle and rotation angle between the first and second through portions 132 and 134 correspond to one third of the angle between the respective edge segments 110. Is set to an angle.

For reference, the reference numerals of the penetrating portion, the inclined surface, and the outline of the second core disk described below use the same reference numerals as the first core disk, and put '2-' in front of the symbols to distinguish them. The reference numerals of the penetrating portion, the inclined surface and the outline portion are divided by '3-'.

First, as shown in FIG. 6, when the second core disk 200 is rotated 30 ° in the counterclockwise direction, the second core disk 200 is stacked behind the first core disk 100 as shown in FIG. 7. The first through portions 2-132 including the respective inclined surfaces 2-122, 2-124, 2-126, and 2-128 are outside the respective edge segments 110 of the first core disc 100. It protrudes toward the side.

On the contrary, the second through portions 134 including the inclined surfaces 122, 124, 126, and 128 of the first core disk 100 are divided by the outer edges of the second core disk 200. It becomes the form which protrudes toward the outer side more.

In this case, the first through portions 2-132 of the second core disk 200 are positioned on the line of the center of gravity G, which faces in all directions from the center C, and the inclined surface 2-122 defines the center of vertical G. It is located on the right side as a reference.

At this time, since the angle between the first and second through portions 132 and 134 of all the core disks is set to 30 °, the second through portions 2-134 of the second core disk 200 are the first core. The first through portions 132 of the disc 100 coincide with each other.

In addition, the auxiliary through portions 2-135 and the recesses 2-140 of the second core disk 200 are also exposed on the outer edge portion 110 in a state located on the right side with respect to the vertical center line G.

At this time, since the distance from the center point C to the bottom surface of each recess 2-140 and the middle point of each line segment 110 are the same, the bottom surfaces of the recesses 2-140 of the second core disk 200 may be formed. Each of the outer edges 110 of the one core disk 100 is matched.

In this state, according to the welding of the matching point between the bottom surface of each groove (2-140) of the second core disk 200 and each of the outer peripheral portion 110 of the first core disk 100 as shown in FIG. The stacking state between the two core disks 100 and 200 is fixed.

The third core rotated 60 ° counterclockwise with respect to the first core disk 100 as shown in FIGS. 9 and 10 while the first and second core disks 100 and 200 are stacked and fixed. When the disk 300 is stacked behind the second core disk 200, the third core disk 300 includes three inclination surfaces 3-122, 3-124, 3-126, and 3-128. The first through portions 3-132 are protruded outward from the respective outer edge portions 2-110 of the second core disk 200.

In this case, the first through portions 3-132 of the third core disk 300 communicate with the second through portion 134 of the first core disk 100.

Therefore, the first through portion 132 (2-132) (3-132) and the second through portion 134 (2-134) (3-134) of each of the core disks 100, 200, and 300, respectively. They are all in communication in the front-rear direction, and in this state, air is circulated into each of the through parts, so that heat radiation efficiency is increased.

In addition, the inclined surfaces 3-122, 3-124, 3-126, and 3-128 of the third core disk 300 are positioned on the left side of the vertical center line G, so that the second and third core disks are disposed on the left side. (200) 300, each inclined surface (2-122) (2-124) (2-126) (2-128), (3-122) (3-124) (3-126) (3-128) And the auxiliary through portions 2-135 and 3-135 are positioned in a symmetrical direction with respect to the vertical center line G.

Therefore, when viewed from the front as shown in the drawing, the inclined surfaces of the first, second, and three core disks 100, 200 and 300 all protrude to the outside, do not overlap each other, and are sequentially arranged, It is entirely circular by the outer arc.

Therefore, it can be installed in the circular case of the existing standard.

In addition, the auxiliary through portion (3-135) and the groove (3-140) of the third core disk 300 is also located on the right side with respect to the vertical center point (G), the outer segment of the second core disk (200) Is exposed above (2-110)

At this time, since the distance between the center point C and the bottom surface of the grooves 3-140 and the middle point of each line segment 3-110 is the same, the bottom surfaces of the grooves 3-135 of the third core disk 300 are the same. Is coincident with each edge segment 2-110 of the second core disk 200.

In this state, the second and third core disks are welded by matching the matching points between the bottom surface of each groove (3-140) of the third core disk 300 and the respective edge segments 2-110 of the second core disk 200. Since the stacking state between the 200 and 300 is fixed, and the first and second core disks 100 and 200 are already welded in the same manner, the first, second and third cores as shown in FIG. Discs 100, 200 and 300 are all integrated.

Thereafter, the fourth core disk 400 rotated by 90 ° with respect to the first core disk 100 is stacked in the same state as the first core disk 100, and the core disks thereafter are formed in the same shape as the previous structure. Repeatedly stacked.

In addition, since the core disks to be stacked later are all welded to each other in the same manner, the entire stator is integrated.

Therefore, not only does not need a support bar to maintain the overlap between the core disks, but also support frame to prevent the shaking between the core disks, not only simplify the installation structure, but also support rods and support frames This space can also be saved.

And as it operates, it generates heat itself, but as described above, the corners of each of the core disks 100, 200, and 300, that is, the inclined surfaces are all protruded to the outside, so that the overall heat dissipation area is increased. Heat dissipation efficiency is improved.

In addition, as the through-holes communicate with each other in the stacking process of each of the core disks 100, 200 and 300, the heat dissipation effect is inevitably improved by the air passing through.

As described above, the present invention manufactures each core disk 100, 200, 300,... Which constitute the stator 1000 in a square shape, but each core disk is stacked in a rotated state while sequentially increasing by a predetermined angle. 100) (200) (300) ... the corners, that is, the inclined surface is a point that all to ensure the heat dissipation area by protruding outward form is the biggest feature.

In addition, it is another feature that the heat dissipation efficiency can be further increased by forming a moving path of the air by the through parts communicating with each other during the lamination process.

In addition, by improving the structure of each of the core disks to enable the welding connection between each other is characterized in that it can be installed without a separate support rod and support frame.

The present invention may be embodied in various forms and modified, and FIGS. 12 and 13 are views related to the second embodiment of the present invention.

The basic structure of fabricating the core disk in a square shape and laminating it sequentially by a predetermined angle is the same as in the previous embodiment, except that the core disk is overlapped without forming an inclined surface at a corner portion of the core disk.

Therefore, this structure also has a corner portion protruding to the outside. Of course, in this case, the exterior is not circular from the front, but there is a lot of space in the case, but the large area is protruded compared to the case where the inclined surface is formed. have.

14 is related to the third embodiment of the present invention. The basic structure is the same as the previous two embodiments, except that the core disc is implemented by a hexagon.

In this case, the angle between the midpoints of each of the outer edges 110 is 60 ° based on the center point, and the rotation angles of the core disks are sequentially rotated by 20 °, which is 1/3 of them. The angle between () and () is also formed at 20 degrees.

In this way, as they are sequentially rotated by 20 ° and overlapped, the inclined surfaces () are protruded in the same structure as in the first embodiment, and the respective through portions communicate with each other.

The angular change of the core disk can be made in various ways. For example, in the case of an octagon, the angle between the center point of each contour line is 45 ° with respect to the center point, so that the rotation angle and the angle between the penetrating parts are 1/3 of this. Set it to 15 °.

As described above, the features of the present invention may be variously modified and combined by those skilled in the art. However, these modifications and combinations may be produced by forming the core disk in a square shape, but overlapping in a rotated state while sequentially increasing by a predetermined angle toward the rear. When the edge portion of the core disk is protruded to the outside, and is related to the configuration and the purpose of increasing the heat dissipation efficiency, it should be determined that it belongs to the protection scope of the present invention.

1 and 2 are a perspective view and a half sectional view showing an installation structure of a conventional stator

3 to 11 are views related to the first embodiment of the present invention.

3 is a perspective view showing the laminated structure of the stator

Figure 4 is a half cross-sectional view showing a state installed in the housing in a laminated structure

5 is a front view showing the structure of the first core disk;

6 to 8 are front and perspective views showing a state in which the first core disk and the second core disk are stacked

9 to 11 are front and perspective views showing a state in which a third core disk is additionally stacked in a state in which the first and second core disks are stacked.

12 and 13 are views of a second embodiment of the present invention, in which a front view showing a case in which the inclined surface of the core disk is not formed;

14 is a view of a third embodiment of the present invention, showing a state in which a core disc is embodied in eight angles;

Claims (7)

In a laminated rotor in which core disks in the form of sheets are stacked along an axial direction, Each of the stacked core disks is made of the same square, Penetrations are symmetrically formed at both sides of the reference line D that bisects the angle B between the center points C of the core disks adjacent to the center point C of the core disk. Stacked stator, characterized in that laminated in a rotated form while being sequentially increased by a predetermined angle. The method of claim 1, The stacking angle of the adjacent core disk when the core disks are stacked is 1/3 of the angle (B) between the middle point (A) of the adjacent outer portion from the center point (C) of the core disk Type stator. delete The method of claim 1, The core disk has a rectangular shape as a whole, the inclined surface is formed at each corner, Stacked stator, characterized in that the angle between the two ends of the inclined surface from the center point is made the same angle as the angle between the through. The method of claim 4, wherein The angle between the both ends of the inclined surface from the center point of the core disk is 30 °, each core disk is a laminated stator, characterized in that laminated in a rotating state while sequentially increasing by 30 °. The method according to any one of claims 1, 2, 4 and 5, Stacked stator, characterized in that the auxiliary through portion further formed between each through part. The method according to any one of claims 1, 2, 4 and 5, Grooved stator is formed in the intermediate point of each inclined surface toward the center point of the core disk, the distance from the center point of the core disk to the bottom surface of the groove and the middle point of the outer segment is the same.

Images