CN217789427U - Enameled wire stator with low alternating current loss - Google Patents
Enameled wire stator with low alternating current loss Download PDFInfo
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- CN217789427U CN217789427U CN202122828103.5U CN202122828103U CN217789427U CN 217789427 U CN217789427 U CN 217789427U CN 202122828103 U CN202122828103 U CN 202122828103U CN 217789427 U CN217789427 U CN 217789427U
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- enameled wire
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Abstract
The utility model discloses a low alternating current loss's enameled wire stator, a plurality of mounting grooves of placing enameled wire group are seted up to the inner wall of stator, enameled wire group contains a plurality of first enameled wires and second enameled wire, the bottom of second enameled wire is equipped with the recess, the second enameled wire set up in the notch one end of mounting groove, first enameled wire set up in the second enameled wire deviate from the one end of notch, the enameled wire of taking the recess is placed in the notch position of mounting groove or is close to the notch position, and armature reaction time leans on the notch position because the magnetic potential is strongest, produces the magnetic leakage chain of inslot in notch department the easiest way, can effectively improve the current distribution homogeneity of notch wire behind the area recess enameled wire to play the effect that reduces alternating current loss, simple structure, convenient to use.
Description
Technical Field
The utility model relates to an enameled wire stator field, concretely relates to enameled wire stator of low alternating current loss.
Background
In order to further improve the power density of a motor product, more and more square-section wires are adopted as elements of a high-power-density motor of a driving motor of a new energy automobile, but due to the existence of a motor slot leakage flux chain, magnetic lines of force always pass through square wires placed in slots along the circumferential direction, so that larger eddy currents are generated inside the wires, the eddy currents also cause that the alternating current loss of the motor in high-speed and high-frequency work is obviously improved, in order to solve the problem in the industry at present, more and more layers of the wires in the slots of the motor are designed, but the excessive number of the slots not only causes more and more areas where insulation and air are located, but also causes more and more expensive manufacturing equipment, and therefore, an enameled wire stator with low alternating current loss is needed.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is the existence of present motor groove magnetic leakage chain, place the square wire in the inslot always have the magnetic line of force to pass along the circumferencial direction, this leads to the inside great vortex that produces of wire, and this vortex has also led to the motor to obviously improve at high-speed high frequency work matter alternating current loss, the utility model provides a low alternating current loss's enameled wire stator, notched wire places in the notch position of mounting groove or is close to the notch position, and armature reaction is by notch position because the magnetomotive force is strongest, produces the magnetic leakage chain of inslot in notch department most easily, can effectively improve notched wire's current distribution homogeneity behind the notched enameled wire to play the effect that reduces alternating current loss, simple structure, convenient to use for solve the defect that prior art leads to.
In order to solve the technical problem, the utility model provides a following technical scheme:
the first aspect, a low exchange loss's enameled wire stator, wherein, a plurality of mounting grooves of placing the enameled wire group are seted up to the inner wall of stator, the enameled wire group contains a plurality of first enameled wires and second enameled wire, the bottom of second enameled wire is equipped with the recess, the second enameled wire set up in the notch one end of mounting groove, first enameled wire set up in the second enameled wire deviate from in the one end of notch.
The enameled wire stator with low alternating current loss is characterized in that the first enameled wire is a square metal core wrapped with an insulating layer, the second enameled wire is a square metal core wrapped with an insulating layer, and the insulating layer uniformly surrounds the metal core.
The enameled wire stator with low alternating current loss is characterized in that the groove is a trapezoidal groove or a semicircular groove or a groove with other shapes, and the groove is preferably arranged in the middle of the second enameled wire, so that eddy current reduction is facilitated.
In the enameled wire stator with low ac loss, the depth of the groove is 0.15mm-0.5mm, and the depth and size of the groove are set according to the shape and size of the second enameled wire.
The enameled wire stator with low alternating current loss is characterized in that the groove of the second enameled wire faces to the notch of the mounting groove, and when the first enameled wire and the second enameled wire are arranged, the second enameled wire is preferentially arranged at one end close to the notch of the mounting groove, and the groove of the second enameled wire faces to the notch of the mounting groove.
In an embodiment, the number of the second enameled wires in each mounting groove is less than half of the total number of the first enameled wires and the second enameled wires, and one or more first enameled wires and one or more second enameled wires are arranged.
The enameled wire stator with low alternating current loss is characterized in that the stator is an iron core formed by stacking a plurality of punching sheets.
In the enameled wire stator with low alternating current loss, the mounting groove is an equal-width mounting groove.
The second aspect, an enameled wire stator of low alternating current loss, wherein, a plurality of mounting grooves of placing the enameled wire group are seted up to the inner wall of stator, the enameled wire group contains a plurality of first enameled wires and second enameled wire, the bottom of second enameled wire is equipped with the recess, the second enameled wire set up in the notch one end of mounting groove, first enameled wire set up in the second enameled wire deviate from the one end of notch.
The enameled wire stator with low alternating current loss is characterized in that the first enameled wire is a square metal core wrapped with an insulating layer, the second enameled wire is a square metal core wrapped with an insulating layer, and the insulating layer uniformly surrounds the metal core.
The enameled wire stator with low alternating current loss is characterized in that the groove is a trapezoidal groove or a semicircular groove or a groove with other shapes, and the groove is preferably arranged in the middle of the second enameled wire, so that eddy current reduction is facilitated.
The depth of the groove is 0.15mm to 0.5mm, and the depth and the size of the groove are set according to the shape and the size of the second enameled wire.
The enameled wire stator with low alternating current loss is characterized in that the groove of the second enameled wire faces to the notch of the mounting groove, and when the first enameled wire and the second enameled wire are arranged, the second enameled wire is preferentially arranged at one end close to the notch of the mounting groove, and the groove of the second enameled wire faces to the notch of the mounting groove.
In the enameled wire stator with low alternating current loss, the number of the second enameled wires in each mounting groove is less than half of the total number of the first enameled wires and the second enameled wires, and one or more first enameled wires and one or more second enameled wires are arranged.
The enameled wire stator with low alternating current loss is characterized in that the stator is an iron core formed by laminating a plurality of punching sheets.
The enameled wire stator with low alternating current loss is characterized in that the mounting grooves are mounting grooves with different widths, and the width of the mounting grooves with different widths, close to the groove opening end, is smaller than that of the mounting grooves with different widths at the other end.
The utility model relates to a technical scheme that low alternating current loss's enameled wire stator provided has following technological effect:
the utility model relates to a low alternating current loss's enameled wire stator adopts the enameled wire of a strip groove, and this enameled wire is placed in the notch position of mounting groove or is close to the notch position, and armature reaction is by notch position because the magnetic potential is strongest, produces the magnetic leakage chain of inslot in notch department most easily, can effectively improve the current distribution homogeneity of notch wire behind the enameled wire of strip groove to play the effect that reduces alternating current loss, simple structure, convenient to use.
Drawings
Fig. 1 is a schematic top view of a first embodiment of a low ac loss enameled wire stator according to the present invention;
FIG. 2 is a schematic view showing a state of use of a single enameled wire set in the first embodiment;
fig. 3 is a schematic structural view of a second enameled wire of a low ac loss type of enameled wire stator according to the present invention in a use state;
fig. 4 is a schematic structural view of another use state of the second enameled wire of the enameled wire stator type with low ac loss according to the present invention;
fig. 5 is a schematic top view of a second embodiment of the enameled wire stator with low ac loss according to the present invention;
FIG. 6 is a schematic view showing a state of use of a single enameled wire set in the second embodiment;
fig. 7 is a schematic diagram showing another use state structure of a single enameled wire group in the second embodiment.
Wherein the reference numbers are as follows:
the stator comprises a stator 100, an enameled wire group 200, a mounting groove 101, a notch 102, a first enameled wire 201, a second enameled wire 202, a groove 203, an insulating layer 204 and a metal core 205.
Detailed Description
In order to make the technical means, the inventive features, the objectives, and the functions of the present invention easy to understand and understand, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be understood that the structure, proportion, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions of the present invention, so that the present invention does not have the substantial technical significance, and the modification of any structure, the change of the proportion relation or the adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.
Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
The utility model discloses a first embodiment provides a low alternating current loss's enameled wire stator, and the purpose is that the enameled wire of taking the recess is placed in the notch position of mounting groove or is close to the notch position, and armature reaction leans on the notch position because the magnetomotive is strongest, produces the magnetic leakage chain of inslot in notch department most easily, can effectively improve the current distribution homogeneity of notch wire behind the area recess enameled wire to play the effect that reduces alternating current loss, simple structure, convenient to use.
As shown in fig. 1-2, in a first aspect, a first embodiment is a low ac loss stator of enameled wires, wherein an inner wall of the stator 100 is provided with a plurality of mounting slots 101 for placing the enameled wire set 200, the enameled wire set 200 includes a plurality of first enameled wires 201 and second enameled wires 202, a groove 203 is formed at a bottom of the second enameled wire 202, the second enameled wire 202 is disposed at one end of the notch 102 of the mounting slot 101, and the first enameled wire 201 is disposed at one end of the second enameled wire 202 away from the notch 102.
As shown in fig. 3-4, the enameled wire stator with low ac loss is described above, wherein the first enameled wire 201 is a square metal core 205 wrapped with an insulation layer 204, the second enameled wire 202 is a square metal core 205 wrapped with an insulation layer 204, and the insulation layer 204 uniformly surrounds the metal core 205.
In the above enameled wire stator with low ac loss, the groove 203 is a trapezoidal groove, a semicircular groove or a groove with other shapes, and the groove 203 is preferably disposed in the middle of the second enameled wire 202, which is more beneficial to reducing eddy current.
In the above-mentioned enameled wire stator with low ac loss, the depth of the slot 203 is 0.15mm-0.5mm, and the depth and size of the slot 203 are set according to the shape and size of the second enameled wire 202.
In the enameled wire stator with low ac loss, the groove 203 of the second enameled wire 202 faces the notch 102 of the mounting slot 101, and when the first enameled wire 201 and the second enameled wire 202 are arranged, the second enameled wire 202 is preferentially arranged at one end close to the notch 102 of the mounting slot 101, and the groove 203 of the second enameled wire 202 faces the notch 102 of the mounting slot 101.
In the enameled wire stator with low ac loss, the number of the second enameled wires 202 in each mounting slot 101 is less than half of the total number of the first enameled wires 201 and the second enameled wires 202, and one or more first enameled wires 201 and one or more second enameled wires 202 are arranged.
In the enameled wire stator with low ac loss, the stator 100 is an iron core formed by stacking a plurality of punching sheets.
In the enameled wire stator with low ac loss, the mounting groove 101 is an equal-width mounting groove.
As shown in fig. 4 to 6, in a second aspect, a second embodiment is a low ac loss enameled wire stator, wherein the inner wall of the stator 100 is provided with a plurality of mounting slots 101 for placing the enameled wire set 200, the enameled wire set 200 includes a plurality of first enameled wires 201 and second enameled wires 202, a groove 203 is formed at the bottom of the second enameled wire 202, the second enameled wire 202 is disposed at one end of the notch 102 of the mounting slot 101, and the first enameled wire 201 is disposed at one end of the second enameled wire 202 away from the notch 102.
As shown in fig. 3-4, the enameled wire stator with low ac loss is described above, wherein the first enameled wire 201 is a square metal core 205 wrapped with an insulation layer 204, the second enameled wire 202 is a square metal core 205 wrapped with an insulation layer 204, and the insulation layer 204 uniformly surrounds the metal core 205.
In the above enameled wire stator with low ac loss, the groove 203 is a trapezoidal groove, a semicircular groove or a groove with other shapes, and the groove 203 is preferably disposed in the middle of the second enameled wire 202, which is more beneficial to reducing eddy current.
In the above-mentioned enameled wire stator with low ac loss, the depth of the slot 203 is 0.15mm-0.5mm, and the depth and size of the slot 203 are set according to the shape and size of the second enameled wire 202.
In the enameled wire stator with low ac loss, the groove 203 of the second enameled wire 202 faces the notch 102 of the mounting groove 101, and when the first enameled wire 201 and the second enameled wire 202 are arranged, the second enameled wire 202 is preferentially arranged at one end close to the notch 102 of the mounting groove 101, and the groove 203 of the second enameled wire 202 faces the notch 102 of the mounting groove 101.
In the enameled wire stator with low alternating current loss, the number of the second enameled wires 202 in each mounting groove 101 is less than half of the total number of the first enameled wires 201 and the second enameled wires 202, and one or more first enameled wires 201 and one or more second enameled wires 202 are arranged.
In the above enameled wire stator with low ac loss, the stator 100 is an iron core formed by stacking a plurality of punching sheets.
In the enameled wire stator with low ac loss, the mounting groove 101 is a mounting groove with different widths, and the width of the mounting groove 101 with different widths near the end of the notch 102 is smaller than that of the other end.
To sum up, the utility model discloses a low alternating current loss's enameled wire stator, the enameled wire of taking the recess is placed in the notch position of mounting groove or is close to the notch position, and armature reaction is by notch position because the magnetic potential is strongest, produces the magnetic leakage chain of inslot in notch department most easily, can effectively improve the current distribution homogeneity of notch wire behind the enameled wire of taking the recess to play the effect that reduces alternating current loss, simple structure, convenient to use.
The above description has been made of specific embodiments of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention.
Claims (9)
1. The utility model provides a low AC loss's enameled wire stator, its characterized in that, a plurality of mounting grooves of placing the enameled wire group are seted up to the inner wall of stator, the enameled wire group contains a plurality of first enameled wires and second enameled wire, the bottom of second enameled wire is equipped with the recess, the second enameled wire set up in the notch one end of mounting groove, first enameled wire set up in the second enameled wire deviate from in the one end of notch.
2. The enameled wire stator with low alternating current loss is characterized in that the first enameled wire is a square metal core wrapped with an insulating layer, and the second enameled wire is a square metal core wrapped with an insulating layer.
3. The enameled wire stator with low ac loss according to claim 2, wherein the groove is a trapezoidal groove or a semicircular groove.
4. The low ac loss enameled wire stator according to claim 3, wherein the depth of said groove is 0.15mm-0.5mm.
5. The enameled wire stator with low AC loss in claim 4, wherein the slot of the second enameled wire faces the notch of the mounting slot.
6. The enameled wire stator with low alternating current loss according to claim 5, wherein the number of the second enameled wires in each mounting slot is less than half of the total number of the first enameled wire and the second enameled wire.
7. The enameled wire stator with low alternating current loss is characterized in that the stator is an iron core formed by laminating a plurality of punching sheets according to any one of claims 1 to 6.
8. The enameled wire stator with low AC loss according to claim 7, wherein the mounting groove is an equal width mounting groove.
9. The enameled wire stator with low AC loss according to claim 7, wherein the mounting slots are unequal-width mounting slots.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122828103.5U CN217789427U (en) | 2021-11-17 | 2021-11-17 | Enameled wire stator with low alternating current loss |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122828103.5U CN217789427U (en) | 2021-11-17 | 2021-11-17 | Enameled wire stator with low alternating current loss |
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| CN217789427U true CN217789427U (en) | 2022-11-11 |
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| CN202122828103.5U Active CN217789427U (en) | 2021-11-17 | 2021-11-17 | Enameled wire stator with low alternating current loss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088328A1 (en) * | 2021-11-17 | 2023-05-25 | 上海易唯科电机技术有限公司 | Stator assembly and motor |
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2021
- 2021-11-17 CN CN202122828103.5U patent/CN217789427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023088328A1 (en) * | 2021-11-17 | 2023-05-25 | 上海易唯科电机技术有限公司 | Stator assembly and motor |
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