CN115882621A - Iron core for stator assembly, stator assembly and processing method of stator assembly - Google Patents
Iron core for stator assembly, stator assembly and processing method of stator assembly Download PDFInfo
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- CN115882621A CN115882621A CN202211401283.1A CN202211401283A CN115882621A CN 115882621 A CN115882621 A CN 115882621A CN 202211401283 A CN202211401283 A CN 202211401283A CN 115882621 A CN115882621 A CN 115882621A
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Abstract
The invention relates to the technical field of starting and power generation integrated machines, and discloses an iron core for a stator assembly, the stator assembly and a processing method of the stator assembly. The iron core for the stator assembly comprises an iron core body and convex teeth, the iron core is in a hollow cylindrical shape, the convex teeth are uniformly arranged on the inner wall of the iron core body at intervals along the circumferential direction of the iron core body, a wire slot is defined between every two adjacent convex teeth, and the wire slot is used for accommodating a copper wire; the width of the wire slot is matched with the diameter of the copper wire, so that only one copper wire is accommodated in the wire slot along the width direction of the wire slot; the tip of dogtooth can be provided with the line lock arch towards the wire casing, and the line lock is protruding can lock the copper line in the wire casing. The width of the wire slot is matched with the diameter of the copper wire, so that the copper wire can be arranged in the wire slot in a single-row mode, and the full rate of the wire slot is improved. The wire lock bulge is arranged and used for locking the copper wire in the wire slot, so that the copper wire is not easy to fall off the wire slot, and the installation strength is improved; and a slot tooth angle and a slot wedge are not arranged, so that the structure is optimized, and the material and processing cost is reduced.
Description
Technical Field
The invention relates to the technical field of starting and power generation integrated machines, in particular to an iron core for a stator assembly, the stator assembly and a processing method of the stator assembly.
Background
The stator is a device for generating current for a vehicle, and generates a rotating magnetic field for an IBSG (belt type integrated starter generator), and the rotor is cut by magnetic lines of force in the rotating magnetic field to generate (output) current. This process follows the current law of Fuke. The process of transferring energy to the stator windings is not 100% efficient. Therefore, optimizing the output and providing as few constraints as possible to the client is a major goal. This objective is very important for the stators as they are the source of electrical energy for the vehicle (the primary use of the IBSG).
In the prior art, copper wires are arranged in wire slots of a stator core into two or more rows; meanwhile, the stator core slot type all has slot tooth angle and slot wedge to realize spacing to the copper line, and the arrangement of double row or multirow in-line inslot is not neat on the one hand, leads to the wire inslot space more, and then leads to the full rate of groove to reduce, can not satisfy customer output power demand, and on the other hand process flow goes up more complicated in preface, influences the beat, leads to product cost to rise.
Therefore, there is a need for a stator assembly iron core, a stator assembly and a method for processing the stator assembly to solve the above problems.
Disclosure of Invention
Based on the above, the present invention provides an iron core for a stator assembly, and a method for processing the stator assembly, which effectively improve a slot fullness rate and output power, and simultaneously have a simpler process and a lower cost.
In order to achieve the purpose, the invention adopts the following technical scheme:
iron core for stator assembly includes:
an iron core body which is in a hollow cylindrical shape,
the convex teeth are uniformly arranged on the inner wall of the iron core body at intervals along the circumferential direction of the iron core body, a wire groove is defined between every two adjacent convex teeth, and the wire groove is used for containing a copper wire; the width of the wire slot is matched with the diameter of the copper wire, so that the wire slot only accommodates one copper wire along the width direction of the wire slot; the tip of dogtooth can be provided with the orientation the line lock of wire casing is protruding, the line lock protruding can with the copper line lock in the wire casing.
As a preferred scheme of the iron core for the stator assembly, the groove bottom of the wire groove is in a circular arc shape, and the diameter of the circular arc shape is matched with that of the copper wire.
As a preferred scheme of the iron core for the stator assembly, the wire lock protrusions of the convex teeth positioned on two sides of the same wire slot are oppositely arranged.
As a preferable mode of the iron core for the stator assembly, a plurality of the wire lock protrusions are arranged along the extending direction of the wire grooves.
As a preferred scheme of the iron core for the stator assembly, the wire lock protrusions corresponding to the adjacent wire slots are arranged in a staggered mode along the axial direction of the iron core body.
Stator assembly, including above arbitrary scheme the iron core for stator assembly, stator assembly still includes the copper line, the copper line is around locating a plurality ofly in the wire casing.
As a preferable scheme of the stator assembly, the stator assembly further comprises insulation paper, and the insulation paper is arranged between the copper wire and the wire casing and is formed by cutting.
As an optimal scheme of a stator assembly, the end of the copper wire extends to one end of the iron core body to form a phase end, one end of the phase end, which is far away from the iron core body, is provided with a connector which is communicated with the copper wire, and a heat shrink tube is sleeved on the copper wire between the connector and the iron core body.
As a preferable scheme of the stator assembly, varnish is coated between adjacent copper wires; and/or the outer side of the iron core for the stator assembly is coated with protective paint.
A method of manufacturing a stator assembly, the method being used to manufacture a stator assembly according to any of the preceding claims, the manufacturing steps including:
bending insulation paper into a shape matched with the iron core for the stator assembly, and inserting the insulation paper into the iron core for the stator assembly;
winding copper wires into a single row and in a shape matched with the iron core for the stator assembly, and pressing the copper wires into the iron core for the stator assembly;
the end part of the convex tooth is provided with the wire lock bulge;
cutting the insulating paper at the end of the convex teeth;
dripping varnish outside the copper wire;
spraying protective paint outside the iron core for the stator assembly;
and a connector and a heat shrink tube are arranged on the copper wire convexly arranged on the iron core for the stator assembly.
The beneficial effects of the invention are as follows:
according to the invention, the plurality of convex teeth are uniformly arranged on the inner side of the hollow cylindrical iron core body at intervals in the circumferential direction, so that a wire slot can be formed between every two adjacent convex teeth for accommodating a copper wire, and the copper wire is supported so that the wound copper wire can generate a magnetic field. The width of the wire slot is set to be matched with the diameter of the copper wire, so that the copper wire can be arranged in the wire slot only in a single-row mode, the slot fullness rate of the iron core for the stator assembly is effectively improved, the magnetic field intensity and the efficiency of the stator assembly are improved, and the output power of the stator assembly is further improved; meanwhile, copper wires can be wound according to preset waveforms and then are pressed into the iron cores for the stator assemblies together, bundling is not needed, and installation and operation are convenient and fast. The wire lock bulge facing the wire slot is arranged at the end part of the convex tooth and used for locking the copper wire in the wire slot, so that the copper wire is not easy to fall off the wire slot, and the installation strength is improved; the slot tooth angle and the slot wedge in the prior art are omitted, the structure of the iron core for the stator assembly is optimized, and the material and processing cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
FIG. 1 is a schematic view of a stator assembly core provided in accordance with an embodiment of the present invention;
FIG. 2 is an enlarged partial schematic view at A in FIG. 1;
FIG. 3 is a schematic illustration of a stator assembly core and copper wire in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a stator assembly provided in accordance with an embodiment of the present invention;
fig. 5 is a partially enlarged schematic view at B in fig. 4.
In the figure:
100. an iron core for a stator assembly; 110. an iron core body; 120. convex teeth; 121. a wire lock protrusion; 130. a wire slot;
200. a copper wire;
300. insulating paper;
400. a phase terminal; 410. a connector; 420. a heat shrink tube;
510. varnish; 520. and (4) protecting paint.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "secured" are to be construed broadly and encompass, for example, both fixed and removable connections; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation that the first and second features are not in direct contact, but are in contact via another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
As shown in fig. 1 and 2, the present embodiment provides an iron core for a stator assembly, where the iron core 100 for a stator assembly includes an iron core body 110 and convex teeth 120, and is in a hollow cylindrical shape, the convex teeth 120 are uniformly arranged on an inner wall of the iron core body 110 at intervals along a circumferential direction of the iron core body 110, a slot 130 is defined between two adjacent convex teeth 120, and the slot 130 is used for accommodating a copper wire 200; the width of the wire slot 130 is adapted to the diameter of the copper wire 200, so that the wire slot 130 only accommodates one copper wire 200 along the width direction thereof; the end of the tooth 120 can be provided with a wire lock protrusion 121 facing the wire slot 130, and the wire lock protrusion 121 can lock the copper wire 200 in the wire slot 130.
Set up a plurality of dogteeth 120 through setting up the even interval of inboard circumference at hollow circular cylindrical iron core body 110 for can enclose between two adjacent dogteeth 120 and establish into wire casing 130, be used for holding copper line 200, play the supporting role to copper line 200 and make and can produce the magnetic field around the copper line 200 after establishing. The width of the wire slot 130 is set to be matched with the diameter of the copper wire 200, so that the copper wire 200 can only be arranged in the wire slot 130 in a single-row mode, the slot fullness rate of the iron core 100 for the stator assembly is effectively improved, the magnetic field intensity and the efficiency of the stator assembly are improved, and the output power of the stator assembly is further improved. Meanwhile, the copper wire 200 can be wound according to a preset waveform and then pressed into the stator assembly iron core 100 together, so that bundling is not required, and the installation operation is more convenient. The end part of the convex tooth 120 is provided with the wire locking bulge 121 facing the wire slot 130 and used for locking the copper wire 200 in the wire slot 130, so that the copper wire 200 is not easy to fall off the wire slot 130, and the installation strength is improved; the slot tooth angle and the slot wedge in the prior art are not arranged, the structure of the iron core 100 for the stator assembly is optimized, and the material and processing cost is reduced.
It should be noted that, the slot fullness rate, that is, the occupation ratio of the copper wires 200 in the wire slot 130, in this embodiment, compared with the configuration in which the wire slots 130 in the prior art are arranged in multiple rows, the occupation ratio of the wire portions of the copper wires 200 in the wire slot 130 can be increased, the occupation ratio of the insulating layers coated outside the wires in the wire slot 130 can be decreased, and the improvement of the slot fullness rate of the iron core 100 for a stator assembly is facilitated. The embodiment can improve the tank full rate of 48-50% in the prior art to 55-58%, and the total output power is improved from 4kw to 6kw.
Further, the slot wedge is a plastic sheet inserted into the slot 130 and abutted against the slot corners to prevent the copper wire 200 from coming out of the slot 130. In the embodiment, the wire locking protrusions 121 are arranged on the convex teeth 120 after the copper wires 200 are pressed, so that the use of a slot wedge is replaced, additional parts are reduced, and the cost is reduced.
As an alternative to the core for the stator assembly, the extending direction of the wire slots 130 is arranged in parallel with the axial direction of the core body 110. That is, the axes of the copper wires 200 disposed in the slots 130 are also disposed in parallel to the axial direction of the core body 110, so that the copper wires 200 wound around the slots are easily pressed into the corresponding slots 130.
Preferably, the bottom of the slot 130 is circular arc-shaped, and the diameter of the circular arc is matched with the diameter of the copper wire 200, so that the copper wire 200 placed at the bottom of the slot 130 can more stably abut against the bottom of the circular arc-shaped slot. It can be understood that the width of the slot 130 and the diameter of the arc are slightly larger than the diameter of the copper wire 200, so that the copper wire 200 can be stably arranged in the slot 130 in a single row, friction between the convex teeth 120 and the copper wire 200 when the copper wire 200 is pressed in can be effectively reduced, and the copper wire 200 is conveniently pressed and the wear caused by pressing on the copper wire 200 is reduced.
In this embodiment, as shown in fig. 3, in order to ensure the reliability of the wire lock protrusion 121 for limiting the copper wire 200, the wire lock protrusions 121 of the convex teeth 120 located on two sides of the same wire slot 130 are arranged oppositely, that is, the two opposite wire lock protrusions 121 are limited at the same position of the copper wire 200, so that the limiting strength is higher and more reliable.
Optionally, for making copper line 200 all can obtain spacingly along the not same position of its axis direction, along the extending direction of line groove 130, line lock arch 121 is provided with a plurality ofly to guarantee that each position of copper line 200 can not deviate from wire casing 130, improved copper line 200 and wire casing 130 complex reliability. It can be understood that the wire locking protrusion 121 only cooperates with the copper wires 200 located at the top of the wire slot 130 to limit the position of all the copper wires 200 in the wire slot 130.
Further, the line lock protrusions 121 corresponding to the adjacent wire slots 130 are arranged in a staggered mode along the axis direction of the iron core body 110, so that the line lock protrusions 121 are prevented from being arranged on two sides of the same position of the convex teeth 120 along the axis direction of the iron core body 110, the reliability of the line lock protrusions 121 is guaranteed, and the strength of limiting the copper wire 200 is improved. It is understood that the wire lock protrusion 121 may be manufactured by extruding the teeth 120.
As shown in fig. 4 and 5, the present embodiment further discloses a stator assembly, which includes the iron core 100 for a stator assembly according to any one of the above aspects, and the stator assembly further includes a copper wire 200, and the copper wire 200 is wound in the plurality of wire slots 130. The stator assembly adopting the iron core 100 for the stator assembly has the advantages of higher slot fullness rate, better performance, easier assembly and lower cost.
Specifically, in order to insulate the copper wire 200 from the core 100 for a stator assembly, the stator assembly further includes an insulation paper 300, and the insulation paper 300 is disposed between the copper wire 200 and the wire slot 130. In the embodiment, the convex teeth 120 are provided with the wire lock protrusions 121, so that the groove teeth are not arranged, the plurality of insulating papers 300 are integrally arranged, the integrally arranged insulating papers 300 can be integrally installed without falling off, and the installation reliability is ensured; the insulating paper 300 is formed by cutting after mounting.
In this embodiment, the end of the copper wire 200 extends to one end of the core body 110 to form a phase terminal 400, which facilitates connection between the stator assembly and the outside. Further, one end of the phase terminal 400, which is far away from the core body 110, is provided with a connector 410, which is in conduction with the copper wire 200, and the connector 410 is used for electrically connecting with an external controller to serve as a conductive input terminal. Illustratively, the phase ends 400 are provided in three groups of two.
Preferably, the copper wire 200 between the connector 410 and the core body 110 is sleeved with a heat shrink tube 420, and the heat shrink tube 420 is arranged to insulate the copper wire 200 protruding from the core body 110, so as to effectively prevent electric shock and ensure safety of use function of the stator assembly.
Optionally, a varnish 510 is coated between adjacent copper wires 200 for fixing the copper wires 200, so as to increase the connection strength between the copper wires 200 and facilitate the heat dissipation of the copper wires 200. Further, the outer side of the iron core 100 for the stator assembly is coated with the protective paint 520, and the protective paint 520 can play a role in corrosion prevention, so that the insulation between the stator assembly and the outside is improved, and the service life of the stator assembly is effectively prolonged.
The embodiment also discloses a processing method of the stator assembly, which is used for processing the stator assembly in any scheme, and the processing steps comprise:
bending the integrated insulating paper 300 into a shape adapted to the stator assembly core 100, and inserting the insulating paper 300 into the stator assembly core 100; the integrated insulating paper 300 can be effectively prevented from falling off, so that the copper wire 200 can be effectively insulated after being pressed and mounted. It can be understood that the integral insulation paper 300 extends in an S shape after being bent, and the protrusions of the integral insulation paper 300 in the S shape correspond to the groove bottom of the wire groove 130 and the end of the convex tooth 120, respectively.
A shape in which the copper wire 200 is wound in a single row and is fitted to the stator core 100; the shape of the copper wire 200 wound is related to the predetermined waveform and the number of the wire slots 130, and is not particularly limited thereto. Alternatively, the shape may be fixed by applying a varnish 510 for subsequent press fitting. Pressing the single-row copper wires 200 into the wire slots 130 respectively; each wire casing 130 after press fitting is provided with a single row of copper wires 200.
A wire lock protrusion 121 is arranged at the end of the convex tooth 120; the wire lock protrusion 121 is formed by pressing the end of the convex tooth 120, and the specific number, the setting form and the setting position of the wire lock protrusion 121 are not described in detail, and those skilled in the art can set the wire lock protrusion according to actual needs.
Cutting the insulating paper 300 of the end of the convex tooth 120 such that only the insulating paper 300 remains between the copper wire 200 and the wire slot 130; the cutting of the insulating paper 300 may be performed by a cutting station, which is not particularly limited herein.
The varnish 510 is dropped outside the copper wire 200 to fix and dissipate heat from the outside of the copper wire 200.
The iron core 100 for the stator assembly is sprayed with the protective paint 520, so that the insulation and the corrosion resistance of the stator assembly are improved.
Finally, a connector 410 and a heat shrinkable tube 420 are provided at the end of the copper wire 200 protruded from the stator assembly core 100. The connector 410 is clamped outside the copper wire 200 by a connecting sheet, and the heat shrinkable tube 420 can cover the copper wire 200 and the connecting sheet, so that the connection and insulation are more reliable.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. Iron core for stator assembly, its characterized in that includes:
a core body (110), the core body (110) being in a hollow cylindrical shape,
the convex teeth (120) are uniformly arranged on the inner wall of the iron core body (110) at intervals along the circumferential direction of the iron core body (110), a wire slot (130) is defined between every two adjacent convex teeth (120), and the wire slot (130) is used for accommodating a copper wire (200); the width of the wire slot (130) is matched with the diameter of the copper wire (200), so that the wire slot (130) only accommodates one copper wire (200) along the width direction of the wire slot; the tip of dogtooth (120) can be provided with the orientation line lock arch (121) of wire casing (130), line lock arch (121) can with copper line (200) lock in wire casing (130).
2. The iron core for a stator assembly according to claim 1, wherein the slot bottom of the slot (130) is configured as a circular arc, and the diameter of the circular arc is adapted to the diameter of the copper wire (200).
3. The stator assembly core according to claim 1, wherein the wire locking protrusions (121) of the teeth (120) located at both sides of the same wire slot (130) are oppositely disposed.
4. The stator assembly core according to claim 1, wherein the wire lock protrusion (121) is provided in plurality in an extending direction of the wire groove (130).
5. The core for a stator assembly according to claim 1, wherein the wire locking protrusions (121) corresponding to the adjacent wire slots (130) are staggered in an axial direction of the core body (110).
6. A stator assembly comprising a stator core according to any one of claims 1 to 5, the stator assembly further comprising copper wires (200), the copper wires (200) being wound around a plurality of slots (130).
7. The stator assembly according to claim 6, further comprising an insulation paper (300), wherein the insulation paper (300) is disposed between the copper wire (200) and the wire slot (130), and a plurality of the insulation papers (300) are integrally disposed and cut to form the insulation paper (300).
8. The stator assembly according to claim 6, wherein an end of the copper wire (200) extends to an end of the core body (110) to form a phase end (400), a connector (410) which is connected with the copper wire (200) is disposed at an end of the phase end (400) far away from the core body (110), and a heat shrink tube (420) is sleeved on the copper wire (200) between the connector (410) and the core body (110).
9. The stator assembly according to claim 6, wherein a varnish (510) is coated between adjacent copper wires (200); and/or the outer side of the iron core (100) for the stator assembly is coated with protective paint (520).
10. A method of manufacturing a stator assembly, for use in manufacturing a stator assembly according to any one of claims 6 to 9, the method comprising the steps of:
bending the integrated insulating paper (300) into a shape matched with the iron core for the stator assembly, and inserting the insulating paper (300) into the iron core for the stator assembly;
winding a copper wire (200) into a single row and in a shape matched with the iron core for the stator assembly, and pressing the copper wire (200) into the iron core for the stator assembly;
the end part of the convex tooth (120) is provided with the wire lock bulge (121);
cutting the insulating paper (300) of the end of the teeth (120);
dripping varnish (510) outside the copper wire (200);
spraying protective paint (520) outside the iron core for the stator assembly;
and a connecting head (410) and a heat shrinkable tube (420) are arranged on the copper wire (200) which is convexly arranged on the iron core for the stator assembly.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401283.1A CN115882621A (en) | 2022-11-09 | 2022-11-09 | Iron core for stator assembly, stator assembly and processing method of stator assembly |
| PCT/CN2023/130059 WO2024099286A1 (en) | 2022-11-09 | 2023-11-07 | Iron core for stator assembly, stator assembly, and machining method for stator assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211401283.1A CN115882621A (en) | 2022-11-09 | 2022-11-09 | Iron core for stator assembly, stator assembly and processing method of stator assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115882621A true CN115882621A (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211401283.1A Pending CN115882621A (en) | 2022-11-09 | 2022-11-09 | Iron core for stator assembly, stator assembly and processing method of stator assembly |
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| Country | Link |
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| CN (1) | CN115882621A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024099286A1 (en) * | 2022-11-09 | 2024-05-16 | 上海法雷奥汽车电器系统有限公司 | Iron core for stator assembly, stator assembly, and machining method for stator assembly |
-
2022
- 2022-11-09 CN CN202211401283.1A patent/CN115882621A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024099286A1 (en) * | 2022-11-09 | 2024-05-16 | 上海法雷奥汽车电器系统有限公司 | Iron core for stator assembly, stator assembly, and machining method for stator assembly |
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