CN204012956U - Iron core and motor - Google Patents
Iron core and motor Download PDFInfo
- Publication number
- CN204012956U CN204012956U CN201420420627.8U CN201420420627U CN204012956U CN 204012956 U CN204012956 U CN 204012956U CN 201420420627 U CN201420420627 U CN 201420420627U CN 204012956 U CN204012956 U CN 204012956U
- Authority
- CN
- China
- Prior art keywords
- yoke portion
- iron core
- syndeton
- plane
- connecting portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 230000008602 contraction Effects 0.000 claims description 15
- 238000003466 welding Methods 0.000 claims description 13
- 230000004907 flux Effects 0.000 abstract description 15
- 229910052742 iron Inorganic materials 0.000 abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model provides a kind of iron core and motor.Iron core comprises body, and body is multiple, and multiple bodies join end to end in turn and are tubular, and each body includes: tooth portion; Yoke portion, the first end of yoke portion is arranged on the outer surface of tooth portion, and the second end of yoke portion stretches out so that body is L-shaped to a side of tooth portion, and forms and coordinate step between the first end of yoke portion and the outer surface of tooth portion; Coordinating step is the first connecting portion, and the second end of yoke portion is the second connecting portion; The first connecting portion and the second connecting portion are connected.Due to the first connecting portion and the second connecting portion are arranged on to the thicker position of yoke portion, thereby increase the distance between the outer surface of tooth portion and the outer surface of yoke portion, namely increase the useful flux area of yoke portion, thereby the magnetic that effectively reduces iron core is close, so reduced motor iron loss, improved the overload capacity of motor.
Description
Technical field
The utility model relates to technical field of motors, more specifically, relates to a kind of iron core and motor.
Background technology
As shown in Figure 1 to Figure 3, iron core comprises multiple bodies, and each body includes tooth portion 10 ' and yoke portion 20 ', and body is T shape, and namely yoke portion 20 ' is symmetrically arranged in tooth portion 10 '.Connecting portion 21 ' is positioned at the two ends of yoke portion 20 ', and for the ease of coiling, the junction of yoke portion 20 ' and the tooth portion 10 ' structure that meets at right angles, makes yoke portion 20 ' along center position attenuation gradually to two ends.In order to ensure the assembly reliability of iron core, thereby need to be reserved with certain gap in connecting portion 21 ' position in actual production.Because the magnetic resistance of the magneto resistive ratio iron core of air gap is much larger, thereby magnetic flux major part is passed through by the position being adjacent to of connecting portion 21 ' both sides.
In prior art, connecting portion 21 ' is just arranged on the thinnest position of yoke portion 20 ', and the core area of connecting portion 21 ' both sides is less, thus make the useful flux area at this place little, magnetic is close higher, thereby easily cause the iron loss of motor to increase, degradation problem under overload capacity.
Utility model content
The utility model aims to provide a kind of iron core and motor, to solve the little problem of useful flux area of iron core in prior art.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of iron core, comprise body, body is multiple, and multiple bodies join end to end in turn and are tubular, and each body includes: tooth portion; Yoke portion, the first end of yoke portion is arranged on the outer surface of tooth portion, and the second end of yoke portion stretches out so that body is L-shaped to a side of tooth portion, and forms and coordinate step between the first end of yoke portion and the outer surface of tooth portion; Coordinating step is the first connecting portion, and the second end of yoke portion is the second connecting portion; The first connecting portion and the second connecting portion are connected.
Further, yoke portion is positioned at a side of the central plane of tooth portion.
Further, the end face of the first end of yoke portion is positioned at the central plane of tooth portion.
Further, yoke portion has contraction section, contraction section is between the first end and the second end of yoke portion, and the distance between the outer surface of yoke portion and the inner surface of yoke portion is the width of yoke portion, and the width at the first end of yoke portion and the second end place is greater than the width at contraction section place.
Further, the outer surface of yoke portion is the first arc surface, and the inner surface of yoke portion comprises: the first plane, and the first plane is near first end; The second plane, the second plane is near the second end, and the junction of the first plane and the second plane is contraction section position place.
Further, the outer surface of yoke portion is the first arc surface, and the first arc surface is projected as the first circular arc line in the cross section of yoke portion; The inner surface of yoke portion is the second arc surface, and the second arc surface is projected as the second circular arc line in the cross section of yoke portion, and the second circular arc curvature of a curve is greater than the first circular arc curvature of a curve.
Further, the end face of the first connecting portion has the first syndeton, and the end face of second connecting portion relative with the first syndeton has the second syndeton matching with the first syndeton.
Further, the first syndeton is detent, and the second syndeton is the positioning convex matching with detent.
Further, the outer surface of yoke portion has welding groove, and welding groove is at least one, and welding groove is positioned at first end and/or the second end.
According to another aspect of the present utility model, a kind of motor is provided, comprise iron core, iron core is above-mentioned iron core.
Body in the utility model is multiple, multiple bodies join end to end in turn and are tubular, each body includes tooth portion and yoke portion, the first end of yoke portion is arranged on the outer surface of tooth portion, the second end of yoke portion stretches out so that body is L-shaped to a side of tooth portion, and forms and coordinate step between the first end of yoke portion and the outer surface of tooth portion, and coordinating step is the first connecting portion, the second end of yoke portion is the second connecting portion, and the first connecting portion and the second connecting portion are connected.Due to the first connecting portion and the second connecting portion are arranged on to the thicker position of yoke portion, thereby increase the distance between the outer surface of tooth portion and the outer surface of yoke portion, namely increase the useful flux area of yoke portion, thereby the magnetic that effectively reduces iron core is close, so reduced motor iron loss, improved the overload capacity of motor.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the structural representation of the body of iron core of the prior art;
Fig. 2 has schematically shown the structural representation of iron core of the prior art;
Fig. 3 has schematically shown the partial enlarged drawing at A place in Fig. 2;
Fig. 4 has schematically shown the structural representation of the body of the iron core in the utility model;
Fig. 5 has schematically shown the structural representation of the iron core in the utility model; And
Fig. 6 has schematically shown the structural representation of the welding groove of the iron core in the utility model.
Reference numeral in figure: 10, tooth portion; 20, yoke portion; 21, first end; 21a, the first syndeton; 22a, the second syndeton; 22, the second end; 23, contraction section; 24, the first arc surface; 25, the first plane; 26, the second plane; 27, welding groove; 30, coordinate step; 10 ', tooth portion; 20 ', yoke portion; 21 ', connecting portion.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As first aspect of the present utility model, provide a kind of iron core.As shown in Figures 4 to 6, iron core comprises body, body is multiple, multiple bodies join end to end in turn and are tubular, each body includes tooth portion 10 and yoke portion 20, the first end 21 of yoke portion 20 is arranged on the outer surface of tooth portion 10, the second end 22 of yoke portion 20 stretches out so that body is L-shaped to a side of tooth portion 10, and form and coordinate step 30 between the first end 21 of yoke portion 20 and the outer surface of tooth portion 10, coordinating step 30 is the first connecting portion, the second end of yoke portion 20 is the second connecting portion, and the first connecting portion and the second connecting portion are connected.Due to the first connecting portion and the second connecting portion are arranged on to the thicker position of yoke portion 20, thereby increase the distance between the outer surface of tooth portion 10 and the outer surface of yoke portion 20, namely increase the useful flux area of yoke portion 20, thereby the magnetic that effectively reduces iron core is close, so reduced motor iron loss, improved the overload capacity of motor.
Yoke portion 20 in the utility model is positioned at a side (please refer to Fig. 4 to Fig. 6) of the central plane of tooth portion 10.Because yoke portion 20 is positioned at a side of the central plane of tooth portion 10, thereby effectively increase the distance between the outer surface of tooth portion 10 and the outer surface of yoke portion 20, thereby ensured that the magnetic surface of crossing of iron core amasss maximization.It should be noted that, the central plane of tooth portion 10 is the symmetrical plane of tooth portion 10 structures self, and this central plane belongs to one in the axial plane of iron core.
In preferred implementation as shown in Figures 4 to 6, the end face of the first end 21 of yoke portion 20 is positioned at the central plane of tooth portion 10.Because the end face of the first end 21 of yoke portion 20 is positioned at the central plane of tooth portion 10, namely the end face of the first end 21 of yoke portion 20 is positioned at the sagittal plane of iron core, thereby be convenient to multiple bodies and assemble, and can ensure the useful flux area maximum of yoke portion 20 at this place, thereby further reduce the functional reliability that the magnetic of iron core is close, ensured iron core.
Preferably, yoke portion 20 has contraction section 23, contraction section 23 is between the first end 21 and the second end 22 of yoke portion 20, distance between the inner surface of the outer surface of yoke portion 20 and yoke portion 20 is the width of yoke portion 20, and the width at the first end 21 of yoke portion 20 and the second end 22 places is greater than the width at contraction section 23 places.Because yoke portion 20 has contraction section 23, contraction section 23 is between the first end 21 and the second end 22 of yoke portion 20, thereby in the situation that ensureing magnetic flux area maximum, make iron core also have advantages of that quality is light, materials are few, production cost is low, can also effectively increase winding space, be convenient to staff and be wound around copper cash in tooth portion 10 simultaneously.
In preferred implementation as shown in Figures 4 to 6, the outer surface of yoke portion 20 is the first arc surface 24, and the inner surface of yoke portion 20 comprises that the first plane 25 and the second plane 26, the first planes 25 are near first end 21; The second plane 26 is near the second end 22, and the junction of the first plane 25 and the second plane 26 is contraction section 23 position places.In this embodiment, the outer surface of tooth portion 10 is plane, and the inner surface of yoke portion 20 is also plane, thereby in the time that multiple bodies are connected, the step 30 that coordinates of being convenient to the yoke portion 20 of a body and the tooth portion 10 of adjacent body coordinates, can effectively avoid the connection gap of the two, improve the assembly reliability of iron core.Meanwhile, because yoke portion 20 is plane near tooth portion 10 1 sides, thereby facilitate staff to carry out winding operation.
In a not shown preferred implementation, the outer surface of yoke portion 20 is that the first arc surface 24, the first arc surfaces 24 are projected as the first circular arc line in the cross section of yoke portion 20; The inner surface of yoke portion 20 is the second arc surface, and the second arc surface is projected as the second circular arc line in the cross section of yoke portion 20, and the second circular arc curvature of a curve is greater than the first circular arc curvature of a curve.In this embodiment, the width that is still the two ends of yoke portion 20 is greater than the width at yoke portion 20 middle parts, thereby has ensured that the magnetic flux area of iron core maximizes, and now, the outer surface of tooth portion 10 should be concave surface, is similar to V-arrangement face.
The end face of the first connecting portion in the utility model has the first syndeton 21a, and the end face of second connecting portion relative with the first syndeton 21a has the second syndeton 22a matching with the first syndeton 21a.Owing to being provided with the first syndeton 21a and the second syndeton 22a, thereby ensure the assembly reliability of multiple bodies, thereby made iron core have the advantages that functional reliability is high.
Preferably, the first syndeton 21a and the second syndeton 22a are multiple.Owing to being provided with multiple the first syndeton 21a and the second syndeton 22a, thereby can improve the assembly reliability of iron core.
In preferred implementation as shown in Figures 4 to 6, the first syndeton 21a is detent, and the second syndeton 22a is the positioning convex matching with detent.Certainly, the first syndeton 21a can also be positioning convex, and the second syndeton 22a is detent.
Preferably, on the end face of the first end 21 of yoke portion 20, there is the first detent and the first positioning convex, on the second end 22 of yoke portion 20, there is the second positioning convex coordinating with the first detent, the second detent coordinating with the first positioning convex.
Preferably, the first syndeton 21a is tooth-shape structure, and the second syndeton 22a is also tooth-shape structure.
Certainly,, as long as it is all feasible to complete the first syndeton 21a and the second syndeton 22a that are linked and packed, concrete shape is not limit.
As shown in Figure 6, the outer surface of yoke portion 20 has welding groove 27, and welding groove 27 is at least one, and welding groove 27 is positioned at first end 21 and/or the second end 22.Owing to being provided with welding groove 27, thereby be convenient to fill scolder after body assembles, and can ensure weld seam neat appearance, improved the end product quality of iron core.
As second aspect of the present utility model, provide a kind of motor.Motor comprises iron core, and iron core is above-mentioned iron core.Preferably, iron core is stator core.
In preferred implementation as shown in Figures 4 to 6, motor is 12 groove motors, and the shared angle of each body is 30 degree.As shown in Figure 5, the width of the first syndeton 21a both sides of yoke portion 20 is L1 and L2, in the time that the additive value of L1 and L2 is larger, long-pending S is larger for this place's core section, when in the certain situation of magnetic flux Φ, known according to formula (1), close B is less for the larger magnetic of area S.
B=Φ/S formula (1)
Wherein, B is that magnetic is close, and S is useful flux area, and Φ is magnetic flux.
Because the larger iron loss of the close B of magnetic is larger, the less iron loss of the close B of magnetic is less, thereby by increasing useful flux area S, the magnetic that can effectively reduce junction is close, reduces iron loss, improves the overload capacity of motor.
The mode that body in the utility model can cut by line laminates into certain folded height after processing and also can opening grinding tool punch forming.
Preferably, the first syndeton 21a and the second syndeton 22a are matched in clearance.By 12, skeleton is installed by frock and has been stitched together with the body that winds copper cash, then formed an integrated iron core with some strength by welding.
Yoke portion 20 junctions that iron core in the utility model can effectively solve body easily produce the problem of Flux saturation, by increasing the width of junction of yoke portion 20, increased iron core useful flux area, to have reduced magnetic close, thereby reduced motor iron loss, improved the overload capacity of motor.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection range of the present utility model.
Claims (10)
1. an iron core, is characterized in that, comprises body, and described body is multiple, and multiple described bodies join end to end in turn and are tubular, and each described body includes:
Tooth portion (10);
Yoke portion (20), the first end (21) of described yoke portion (20) is arranged on the outer surface of described tooth portion (10), second end (22) of described yoke portion (20) stretches out so that described body is L-shaped to a side of described tooth portion (10), and forms and coordinate step (30) between the described first end (21) of described yoke portion (20) and the outer surface of described tooth portion (10);
Described cooperation step (30) is the first connecting portion, and described second end (22) of described yoke portion (20) is the second connecting portion;
Described the first connecting portion and described the second connecting portion are connected.
2. iron core according to claim 1, is characterized in that, described yoke portion (20) is positioned at a side of the central plane of described tooth portion (10).
3. iron core according to claim 2, is characterized in that, the end face of the described first end (21) of described yoke portion (20) is positioned at the central plane of described tooth portion (10).
4. iron core according to claim 1, it is characterized in that, described yoke portion (20) has contraction section (23), described contraction section (23) is positioned between the described first end (21) and described the second end (22) of described yoke portion (20), distance between the inner surface of the outer surface of described yoke portion (20) and described yoke portion (20) is the width of described yoke portion (20), and the width that the described first end (21) of described yoke portion (20) and described the second end (22) are located is greater than the width that described contraction section (23) is located.
5. iron core according to claim 4, is characterized in that, the outer surface of described yoke portion (20) is the first arc surface (24), and the inner surface of described yoke portion (20) comprising:
The first plane (25), described the first plane (25) is near described first end (21);
The second plane (26), described the second plane (26) is near described the second end (22), and described the first plane (25) is described contraction section (23) position place with the junction of described the second plane (26).
6. iron core according to claim 4, is characterized in that,
The outer surface of described yoke portion (20) is the first arc surface (24), and described the first arc surface (24) is projected as the first circular arc line in the cross section of described yoke portion (20);
The inner surface of described yoke portion (20) is the second arc surface, and described the second arc surface is projected as the second circular arc line in the cross section of described yoke portion (20), and described the second circular arc curvature of a curve is greater than described the first circular arc curvature of a curve.
7. iron core according to claim 1, it is characterized in that, the end face of described the first connecting portion has the first syndeton (21a), and the end face of second connecting portion relative with described the first syndeton (21a) has the second syndeton (22a) matching with described the first syndeton (21a).
8. iron core according to claim 7, is characterized in that, described the first syndeton (21a) is detent, the positioning convex of described the second syndeton (22a) for matching with described detent.
9. iron core according to claim 1, it is characterized in that, the outer surface of described yoke portion (20) has welding groove (27), described welding groove (27) is at least one, and described welding groove (27) is positioned at described first end (21) and/or described the second end (22).
10. a motor, comprises iron core, it is characterized in that, described iron core is the iron core described in any one in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420627.8U CN204012956U (en) | 2014-07-28 | 2014-07-28 | Iron core and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420420627.8U CN204012956U (en) | 2014-07-28 | 2014-07-28 | Iron core and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204012956U true CN204012956U (en) | 2014-12-10 |
Family
ID=52052898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420420627.8U Expired - Fee Related CN204012956U (en) | 2014-07-28 | 2014-07-28 | Iron core and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204012956U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322666A (en) * | 2014-07-28 | 2016-02-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Iron core and motor |
-
2014
- 2014-07-28 CN CN201420420627.8U patent/CN204012956U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105322666A (en) * | 2014-07-28 | 2016-02-10 | 珠海格力节能环保制冷技术研究中心有限公司 | Iron core and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141210 |