JP5713773B2 - Laminated electric core members - Google Patents

Description

  The present invention relates to a laminated core member of a rotating electrical machine.

Among the iron cores used in rotating electrical machines, an iron core described in Patent Document 1 is given as an iron core that has been devised for rationalization of manufacturing.
The magnetic pole block is thin and connected in a straight line, and the space for winding is wide, the effect of winding at high speed in the winding process, the effect of winding in alignment, and simultaneous multiple winding processing Effects that can be obtained.

Japanese Patent No. 3307888

A linear core as described in Patent Document 1 is manufactured by press working with a mold. Manufactured by press punching in units of iron core members arranged by connecting magnetic pole blocks in a straight line.
The iron core member punched out from the thin plate material is laminated and fixed in the mold by fitting and fitting the protrusions provided on itself.
Protrusion processing, punching, stacking, and caulking are performed in the mold, enabling high-speed, automated, continuous production, and high production efficiency per hour.

In the production of iron cores, in the process after lamination, there are a process of attaching an insulator to the iron core and a process of applying a winding, and there is a case where each process is automatically conveyed.
In these post processes, it is necessary to grip the iron core.
For gripping the iron core, the outer shape of the iron core is utilized, the core is gripped with a special tool corresponding to the shape of the core, and the insulator mounting process and the winding process are performed in that state.

Moreover, after processing one core, it is necessary to replace the processed core and the unprocessed core.
This replacement requires changing the core.
The difficulty of gripping and positioning depends on the shape and size of the core, and if time is required for gripping, the processing time increases in each of the subsequent processes, and the production efficiency per hour is deteriorated and the manufacturing cost is increased.
In order to facilitate gripping and positioning of the iron core, examples of the shape formed on the iron core itself include protrusions, grooves, holes, and the like.
Providing a gripping part that is formed only for gripping causes problems such as an increase in product size, an increase in weight, and a decrease in magnetic path area due to missing shapes such as grooves and holes, resulting in a decrease in magnetic flux. .

  The present invention has been made to solve such a problem, and facilitates the positioning and gripping of the iron core and simplifies the gripping tool to reduce the cost and time required for the production of the core member. An object of the present invention is to provide a laminated core member.

The laminated core member of the rotating electrical machine according to the present invention is
A T-shaped T-shaped magnetic pole member composed of a magnetic pole tooth portion and a back yoke portion, and a frame that is on the outer periphery of the T-shaped magnetic pole member and connected to the T-shaped magnetic pole member are integrated from the same electromagnetic steel plate. the formed core member is stacked, Ri Do a laminated T-type pole member and the laminated frame,
The frame body is formed in a U-shape in which the tip side of the magnetic pole teeth portion is open,
A plurality of the T-type magnetic pole members are connected to one frame body, and are arranged in the direction in which the frame body is opened .
Moreover, the laminated core member of the rotating electrical machine according to the present invention is
A T-shaped T-shaped magnetic pole member composed of a magnetic pole tooth portion and a back yoke portion, and a frame that is on the outer periphery of the T-shaped magnetic pole member and connected to the T-shaped magnetic pole member are integrated from the same electromagnetic steel plate. It is composed of a laminated T-type magnetic pole member and a laminated frame, in which a plurality of formed iron core members are laminated,
It has an identifier for identifying the type and arrangement of the T-shaped magnetic pole member arranged in the frame.

The laminated core member of the rotating electrical machine according to the present invention is
A T-shaped T-shaped magnetic pole member composed of a magnetic pole tooth portion and a back yoke portion, and a frame that is on the outer periphery of the T-shaped magnetic pole member and connected to the T-shaped magnetic pole member are integrated from the same electromagnetic steel plate. the formed core member is stacked, Ri Do a laminated T-type pole member and the laminated frame,
The frame body is formed in a U-shape in which the tip side of the magnetic pole teeth portion is open,
A plurality of the T-type magnetic pole members are connected to one frame body, and are arranged toward the opening direction of the frame body .
For fixing the laminated T-type magnetic pole member in the conveying process, the insulating process, and the winding process, a laminated frame body other than the laminated T-type magnetic pole member main body may be used, which affects the shape of the laminated T-type magnetic pole member as a product. Without gripping the frame, it can be fixed in place.
Further, by using the laminated frame body as a gripping portion, the laminated core member can be gripped and positioned with a simple tool in a short time.
Further, since it is not necessary to form a grip portion on the laminated T-type magnetic pole member itself, the electromagnetic characteristics of the product are not impaired.
Moreover, the laminated core member of the rotating electrical machine according to the present invention is
A T-shaped T-shaped magnetic pole member composed of a magnetic pole tooth portion and a back yoke portion, and a frame that is on the outer periphery of the T-shaped magnetic pole member and connected to the T-shaped magnetic pole member are integrated from the same electromagnetic steel plate. It is composed of a laminated T-type magnetic pole member and a laminated frame, in which a plurality of formed iron core members are laminated,
Since it has an identifier for identifying the type and arrangement of the T-shaped magnetic pole member arranged in the frame,
For fixing the laminated T-type magnetic pole member in the conveying process, the insulating process, and the winding process, a laminated frame body other than the laminated T-type magnetic pole member main body may be used, which affects the shape of the laminated T-type magnetic pole member as a product. Without gripping the frame, it can be fixed in place.
Further, by using the laminated frame body as a gripping portion, the laminated core member can be gripped and positioned with a simple tool in a short time.
Further, since it is not necessary to form a grip portion on the laminated T-type magnetic pole member itself, the electromagnetic characteristics of the product are not impaired.

1 is a perspective view of a laminated core member 100 according to Embodiment 1 of the present invention. It is a top view of the iron core member 30a which concerns on Embodiment 1 of this invention. It is a figure which shows another example of the connection part of the T-type magnetic pole member 12 which concerns on Embodiment 1 of this invention, and the frame 20. FIG. It is a figure which shows a pushback construction method. It is a perspective view of the stator 41 which assembled | stacked the lamination | stacking T type | mold magnetic pole member 40 isolate | separated from the lamination | stacking frame 50 which concerns on Embodiment 1 of this invention in cyclic | annular form. It is a perspective view of the laminated core member 200 which concerns on Embodiment 2 of this invention. It is a top view of the iron core member 230 which concerns on Embodiment 2 of this invention. It is a top view which shows an example of the positioning structure which concerns on Embodiment 2 of this invention. It is a top view of the iron core member 330a which concerns on Embodiment 3 of this invention. It is a top view of the iron core member 330b which concerns on Embodiment 3 of this invention. It is a top view of the iron core member 430 which concerns on Embodiment 4 of this invention. It is a top view which shows another example of the positioning in Embodiment 4 of this invention, and a thin link combined structure. It is a top view of the iron core member 530 which concerns on Embodiment 5 of this invention. It is a top view which shows another example of the iron core member which concerns on Embodiment 1-5 of this invention. It is a top view which shows another example of the iron core member which concerns on Embodiment 1-5 of this invention. It is a top view which shows another example of the iron core member which concerns on Embodiment 1-5 of this invention. It is a top view which shows another example of the iron core member which concerns on Embodiment 1-5 of this invention.

Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view of the laminated core member 100.
FIG. 2 is a plan view of one core member 30a constituting the laminated core member 100 of FIG.

The iron core member 30a is formed by stamping or etching from one electromagnetic steel sheet.
One T-type magnetic pole member 12 is a T-type magnetic pole member having a magnetic pole tooth portion 11a and a back yoke portion 11b.
Then, three T-shaped magnetic pole members 12 having the same shape are connected to each frame body 20 by three frames and the thin wall portion 15 between the frame body 20 and the frame body 20. They are connected as a unit.

The laminated core member 100 is configured by laminating a plurality of the above-described iron core members 30a.
The portion where the T-type magnetic pole member 12 is laminated is the laminated T-type magnetic pole member 40, and the portion where the frame body 20 is laminated becomes the laminated frame 50.

FIG. 3 is a diagram illustrating another example of the connection portion between the T-shaped magnetic pole member 12 and the frame body 20.
FIG. 4 is a diagram showing a pushback method.
In FIG. 1 and FIG. 2, the T-shaped magnetic pole member 12 and the frame body 20 are connected by a thin portion 15.
In the iron core member 30b shown in FIG. 3, both ends of the T-shaped magnetic pole member 12 are once punched from the frame body 20 with the blade 60 in the press working process, and this portion is fitted back to the frame body 20 by the pushback mechanism 61 again. The T-type magnetic pole member 12 is fixed to the frame.

For fixing between the layers, caulking, welding, and bonding in which uneven portions (not shown) processed by being provided on the frame body 20 are fitted between the upper and lower iron core members are used.
When caulking or welding is directly used for the laminated T-type magnetic pole member as a product, the magnetic properties of the electromagnetic steel sheet are impaired due to distortion caused by processing. Deteriorating the magnetic characteristics of the laminated T-type magnetic pole member 40 can be prevented by not providing the member 40 with a fixed portion.

Next, the post process of the laminated core member 100 that has completed the lamination process will be described.
FIG. 5 is a perspective view of the stator 41 completed after being wound around the magnetic teeth and separated from the laminated frame 50.
When the laminated core member 100 is completed through the lamination process, the laminated core member 100 is transported to an insulation process, which is a subsequent process, by a conveying device (not shown). The conveyance is performed by holding the laminated frame 50.

In the insulation process, the resin molded product 6 is attached to each magnetic pole tooth. Even when the resin molded product 6 is mounted, the laminated frame member 50 is held and the laminated core member 100 is fixed.
When the resin molded product 6 is attached to all the teeth, the laminated core member 100 is transported to a winding process which is a subsequent process.

Next, in the winding step, a coil is formed by winding an electric wire around each magnetic pole tooth with a winding machine (not shown).
Also in the winding step, the laminated frame member 50 is held and the laminated core member 100 is fixed.
In the winding process, winding is successively performed sequentially on the magnetic teeth.
Winding is performed by controlling a nozzle of a winding machine (not shown) with respect to the magnetic teeth of the laminated T-type magnetic pole member 40.
At this time, the nozzle of the winding machine turns around the magnetic pole teeth from the open side surface direction of FIG.

After completing the winding of each magnetic tooth of the three laminated T-type magnetic pole members 40 provided in the first row, the thin portion 15 is cut to separate the laminated T-type magnetic pole member 40 from the laminated frame body 50.
Next, the laminated frame body 50 is cut between the first row and the second row, and winding is similarly performed on the magnetic pole teeth of each laminated T-type magnetic pole member 40 in the second row.
Thereafter, when the laminated T-shaped magnetic pole member 40 having a predetermined number of windings is combined, the stator 41 shown in FIG. 5 is obtained.

According to the laminated core member 100 according to the first embodiment of the present invention, the outer wall of the laminated frame body 50 and the inner and outer walls of the laminated frame body 50 can be freely gripped, so that the laminated part that is a part of the product There is no need to provide a gripping portion on the T-shaped magnetic pole member 40 itself, and the laminated T-shaped magnetic pole member 40 included in the laminated frame 50 can be easily fixed indirectly with a simple tool.
Thereby, positioning, fixing, and conveyance of the laminated core member 100 are facilitated in the insulation process and the winding process.

For example, in the insulation process, when the resin molded product 6 is mounted on each magnetic pole tooth, if the laminated frame 50 is held, the tool for mounting the resin molded product 6 does not interfere with the space around the magnetic pole tooth. So work becomes easy.
Further, since the laminated frame 50 is gripped even in the winding process, a work space for gripping can be sufficiently secured, and the laminated T-type magnetic pole member 40 can be securely fixed and wound.
In addition, since it is not necessary to provide a gripping part on the product itself, there is no problem of increasing the outer shape of the product or increasing the weight.

Further, the fixing portion between the layers may be provided on the frame 20 constituting the layered frame 50, so that the surface of the magnetic pole teeth portion 11a and the back yoke portion 11b which are a part of the product has caulking unevenness. There is no need to provide or bond. Thereby, the laminated core member 100 of the rotary electric machine excellent in magnetic characteristics can be obtained.
Even after the laminated T-shaped magnetic pole member 40 is separated from the laminated frame 50, the laminated fixed state is secured by the resin molding 6 and the winding.

  Further, by forming the plurality of T-shaped magnetic pole members 12 together with one frame body 20, the number of manufacturing steps can be significantly reduced, and the manufacturing cost can be reduced.

  In the present embodiment, an example in which the resin molded product 6 is mounted as an insulating process is shown, but the laminated core member 100 may be electrodeposited together with the laminated frame body 50.

Embodiment 2. FIG.
Hereinafter, the laminated core member 200 according to the second embodiment of the present invention will be described with a focus on differences from the first embodiment.
FIG. 6 is a perspective view of the laminated core member 200 according to Embodiment 2 of the present invention.
FIG. 7 is a plan view of an iron core member 230 according to Embodiment 2 of the present invention.
FIG. 8 is a diagram illustrating an example of a positioning structure.

In the second embodiment, the frame body 220 is provided with a positioning structure.
In the iron core member 230 shown in FIG. 7, the round hole 21 is provided as a positioning structure.
Two round holes 21 are arranged with respect to the T-shaped magnetic pole member 12 in a horizontal row at the same pitch as the row width of the T-shaped magnetic pole member 12, and are used for positioning the laminated T-shaped magnetic pole member 40. The laminated core member 200 is also used for gripping and fixing.

The positioning structure shown in FIG. 8 is a notch 22.
If there is the laminated frame 50 as in the first embodiment, it can be gripped using its shape itself, but a simple structure such as the round hole 21 and the notch 22 shown in the present embodiment. By simply adding to the frame body 220, the laminated frame body 50 can be held and transported more easily and reliably.

Note that the positioning structure may be a hole, a notch, or a protrusion.
Further, the shape of the hole or the protrusion may be any structure as long as the laminated core member can be transported and fixed using the shape.

Embodiment 3 FIG.
Hereinafter, the laminated core member according to the third embodiment of the present invention will be described with a focus on differences from the second embodiment.
FIG. 9 is a plan view of the iron core member 330a.
A rectangular hole 23 is provided in a part of the frame 320 a, and the frame 320 a is connected by a thin link portion 24 that is an edge of the hole 23.
When the core member 330a is laminated, the thin link portion 24 is also laminated as it is.
Cutting the thin link portion 24 is much easier than cutting at a place where the thin link portion 24 is not provided.

FIG. 10 is a plan view of another iron core member 330b in the present embodiment.
This is an example in which a thin link portion is employed in an iron core member 330b in which a T-shaped magnetic pole member 12 is fitted to a frame body 320b.
In this case, the winding machine nozzle is inserted between the magnetic pole teeth from the upper side in the stacking direction, and all the magnetic pole teeth are continuously wound. When the portion of the link portion 24 is cut, all the laminated T-type magnetic pole members 40 are separated and can be easily taken out.

According to the laminated core member according to this embodiment, the laminated frame body can be cut with a simple cutting mechanism, and the number of manufacturing steps and the manufacturing cost of the final product can be reduced.
Moreover, when it applies to the core member 330b of a fitting structure, there exists an effect which can disassemble a laminated frame easily.

Embodiment 4 FIG.
Hereinafter, the laminated core member according to the fourth embodiment of the present invention will be described with a focus on differences from the first to third embodiments.
FIG. 11 is a plan view of the iron core member 430.
In this embodiment, a structure having both the positioning structure described in the second embodiment and the thin link portion described in the third embodiment is employed.
A round hole 421 serving as a positioning structure is provided in the middle of the two frame bars 16 to which the T-shaped magnetic pole member 12 is connected by the thin portion 15.
Further, the size of the round hole 421 is adjusted so that the thin link portion 424 is formed between the edge of the round hole 421 and the inner wall surface and the outer wall surface of the frame body 420.

  By forming the round hole 421 in this way, when transporting the laminated core member or winding the magnetic pole teeth, a rod-like transporter / fixer is inserted into the round hole 421, and the laminated core member is inserted. When the laminated frame is conveyed or fixed and the laminated frame is cut, the laminated frame can be easily cut by cutting the portion of the round hole 421 of the laminated frame.

FIG. 12 is a plan view showing another example of the positioning and thin-wall link combined structure. By providing the deep cutout 422 in the frame body 420, the positioning and the thin link portion can be combined.
It should be noted that any structure may be used as long as the structure for positioning and conveyance can also serve as the thin link portion.

  According to the iron core member according to this embodiment, since the positioning structure and the thin link portion can be formed together in one place, the number of manufacturing steps of the laminated iron core member can be reduced, and the manufacturing cost can be reduced.

Embodiment 5 FIG.
Hereinafter, the laminated core member according to the fifth embodiment of the present invention will be described with a focus on differences from the fourth embodiment.
FIG. 13 is a plan view of an iron core member 530 according to Embodiment 5 of the present invention.
The iron core member 530 includes two types of T-type magnetic pole members having different sizes and shapes, ie, T-type magnetic pole members 12 and 512.
The position of the thin link portion 524 that is also used for positioning provided in the frame 520 is also adjusted according to the connection position of the T-shaped magnetic pole members 12 and 512.
That is, both the interval (pitch) between the positioning round holes 521 and the arrangement of the thin link portions 524 vary depending on the configuration of the T-shaped magnetic pole member included in the iron core member 530.

  In a post-process for a laminated core member in which a plurality of such iron core members 530 are laminated, it is necessary to grasp what kind of laminated T-type magnetic pole member is located at what position.

An identifier 9 indicating the position and type of the T-shaped magnetic pole member included in the iron core member 530 is painted or stamped on the frame of FIG.
This identifier 9 is read by an identifier reading means of a winding machine (not shown) and used for controlling the operation of the nozzle in the winding process, transporting the laminated core member, determining the separation position of the laminated frame body, and the like.
For example, the identifier 9 displayed on the iron core member 530 shown in FIG. 13 has four T-shaped magnetic pole members 512 in a row in the horizontal direction and the three T-shaped magnetic pole members 12 in the horizontal direction. It represents that three connected units are connected in two rows.
Further, the identifier 9 may include positioning data and arrangement data of the thin link portion.

  Furthermore, when there is a product that uses the same iron core member 530 and changes the number of stacked layers, a new identifier in which the number of stacked layers is added to the information of the identifier 9 displayed on the individual core member 530 is prepared separately. And one may be displayed on a laminated iron core member, and you may use together. In this case, it is possible to automatically manufacture a wider product group.

  According to the laminated iron core member according to this embodiment, the identifier 9 indicating information such as the type and arrangement of the T-shaped magnetic pole member included in the frame body 520, the positioning structure, the arrangement of the thin link portion, and the like is used. Transport to the process and insulation treatment can be automated, and the winding machine can be automatically controlled for each laminated frame, so the manufacturing process of the product can be greatly automated and the manufacturing cost can be reduced.

In addition, a plurality of types of laminated T-type magnetic pole members can be included in one laminated iron core member, and a small number of products can be mixed and produced in one mold, so that the manufacturing cost of the mold can be reduced.
In addition, the product can be supplied at a low cost and with a short delivery time.

  In addition, since there is no need to set up various devices or replace tools, which is necessary when repeating the manufacture of a single product, the overall time required to manufacture the product can be shortened and the productivity per hour can be increased. .

  Moreover, even if large and small laminated T-shaped magnetic pole members are mixed, the conveyance pitch can be automatically adjusted according to the size, so that the electromagnetic steel sheet can be used without waste.

  Further, the iron core members may be iron core members 30c, 30d, 30e, and 30f shown in FIGS. 14 to 17, and there are no restrictions depending on the size, number, and arrangement of the T-type magnetic pole members included in the frame body. .

  Moreover, simultaneous manufacture of a plurality of types of laminated T-shaped magnetic pole members can be realized using the identifier 9.

100 laminated core member, 11a magnetic pole tooth part, 11b back yoke part,
12,512 T-shaped magnetic pole member, 15 thin part,
20, 220, 320a, 320b, 420, 520 frame, 21, 421 round hole,
22,422 notches,
30a, 30b, 230, 330a, 330b, 430, 530 iron core member,
24,424 Thin link part, 40 laminated T-type magnetic pole member, 41 stator,
50 Laminated frame, 9 identifier.

Claims (21)

A T-shaped T-shaped magnetic pole member composed of a magnetic pole tooth portion and a back yoke portion, and a frame that is on the outer periphery of the T-shaped magnetic pole member and connected to the T-shaped magnetic pole member are integrated from the same electromagnetic steel plate. the formed core member is stacked, Ri Do a laminated T-type pole member and the laminated frame,
The frame body is formed in a U-shape in which the tip side of the magnetic pole teeth portion is open,
A laminated core member of a rotating electrical machine in which a plurality of the T-type magnetic pole members are connected to one frame body and are arranged in a direction in which the frame body is open . 2. The rotation according to claim 1, wherein the T-shaped magnetic pole member and the frame are thin and integrally connected , or the T-shaped magnetic pole member and the crosspieces passed to the frame are integrally connected with the thin wall. Laminated iron core member. To one of said frame body, the laminated core members of the rotary electric machine according to claim 2, connecting a plurality of said T-shaped magnetic pole member sideways direction. The laminated core member of the rotary electric machine according to claim 2 or 3, wherein a thin link portion to be cut is provided in the frame body with the crosspiece interposed therebetween. The laminated core member for a rotating electrical machine according to claim 1, wherein the T-shaped magnetic pole member and the frame are fixed by fitting. Laminated core members of the rotary electric machine according to any one of claims 1 to 5 having a plurality of kinds of said laminated T-pole member. The laminated core member of the rotating electrical machine according to any one of claims 1 to 6 , further comprising an identifier for identifying a type and an arrangement of the T-shaped magnetic pole member arranged in the frame body. The laminated core member of the rotating electric machine according to claim 7 , wherein the identifier includes information on the number of laminated core members. The laminated core member for a rotating electrical machine according to any one of claims 1 to 8 , further comprising caulking uneven portions used when the iron core member is laminated on an upper surface and a lower surface of the frame body. The laminated core member for a rotating electrical machine according to any one of claims 1 to 9 , wherein the entire laminated frame is subjected to electrodeposition coating for insulation. A T-shaped T-shaped magnetic pole member composed of a magnetic pole tooth portion and a back yoke portion, and a frame that is on the outer periphery of the T-shaped magnetic pole member and connected to the T-shaped magnetic pole member are integrated from the same electromagnetic steel plate. the formed core member is stacked, Ri Do a laminated T-type pole member and the laminated frame,
A laminated core member for a rotating electrical machine having an identifier for identifying the type and arrangement of the T-shaped magnetic pole member arranged in the frame . The laminated core member for a rotating electrical machine according to claim 11 , wherein a plurality of the T-type magnetic pole members are connected to one frame body. The laminated core member of the rotating electric machine according to claim 12 , wherein the T-shaped magnetic pole member integrally connected to the frame body has the same direction. The shape of the frame is quadrangular or laminated core members of the rotary electric machine according to any one of claims 11 to 13 which is U-shaped. The laminated core member for a rotating electrical machine according to any one of claims 12 to 14 , wherein a plurality of the T-type magnetic pole members are connected to one frame body in both the vertical and horizontal directions. The upper and lower surfaces of the frame body, the laminated core members of the rotary electric machine according to any one of claims 11 to 15 having a caulking uneven part used during lamination of the core member. Laminated core members of the rotary electric machine according to any one of the T-type pole member and the frame body claims 11 to which is connected integrally with the thin 16. Laminated core members of the rotary electric machine according to any one of the T-type pole member and the frame member is mating with have been fixed claims 11 to 16. The laminated core member for a rotating electrical machine according to any one of claims 12 to 18 , comprising a plurality of types of the laminated T-type magnetic pole members. The laminated core member of the rotating electric machine according to any one of claims 11 to 19 , wherein the identifier includes information on a number of laminated core members. Laminated core members of the rotary electric machine according to any one of claims 11 to 20 to the insulating electrodeposition coating across each of the stacked frame body.

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