CN204967440U - Stator magnet steel piece - Google Patents
Stator magnet steel piece Download PDFInfo
- Publication number
- CN204967440U CN204967440U CN201520660933.3U CN201520660933U CN204967440U CN 204967440 U CN204967440 U CN 204967440U CN 201520660933 U CN201520660933 U CN 201520660933U CN 204967440 U CN204967440 U CN 204967440U
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- China
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- magnet steel
- stator magnet
- protuberance
- steel disc
- stator
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Abstract
The utility model discloses a stator magnet steel piece, including head, first protruding portion and second protruding portion, the one end of stator magnet steel piece main part is located to the head, and the other end of stator magnet steel piece main part is located to first protruding portion, and the middle part of stator magnet steel piece main part is located to the second protruding portion, and first protruding portion is the same with the direction that the second protruding portion extends, and the extension length of first protruding portion is greater than the second protruding portion. Technical scheme's stator magnet steel piece more than adopting, generally be applied to the DDR motor in, only need a plurality of stator magnet steel piece heads inwards when the installation, connection, easy dismounting just can be realized to direct card mutually. And compare with current stator magnet steel piece, saved a pin to the cost of installation has been practiced thrift.
Description
Technical field
The utility model relates to motor parts, particularly a kind of stator magnet steel disc.
Background technology
Stator core is the important composition parts of electric rotating machine.The stator core of existing electric rotating machine is generally formed by multiple magnetic steel of stator sheet pile is stacked together.Crimping portion on a stator magnet steel disc is crimped into the crimping portion on another stator magnet steel disc thus is combined by stacking stator magnet steel disc.Such as, Japan Patent JP-A-2003-153474 describes such technology: the core of the multiple salient pole teeth having annular outer ring portion and radially extend internally from the inner circumferential side of outer ring portion, by forming annular crimping portion along the profile of outer ring portion and crimping these crimping portions and combined by multiple electromagnetic steel sheet.This technology can reduce the interference of the magnetic flux in thin plate.
Shown in Fig. 1 and Fig. 2 is current more common stator magnet steel disc and magnetic steel of stator sheet is stacking forms stator core by this.As shown in the figure, stator magnet steel disc is provided with the pin-and-hole 20a run through along its length, needs to use pin to fixedly mount one by one when mounted fixing very inconvenient, and many pins, cause added cost.
Utility model content
In order to overcome, the installation of existing stator magnet steel disc is difficult and installation cost is higher.The purpose of this utility model is to provide a kind of stator magnet steel disc.
According to an aspect of the present utility model, provide a kind of stator magnet steel disc, comprise head, the first protuberance and the second protuberance, head is located at one end of stator magnet steel disc main body, first protuberance is located at the other end of stator magnet steel disc main body, second protuberance is located at the middle part of stator magnet steel disc main body, and the first protuberance is identical with the direction that the second protuberance extends, and the development length of the first protuberance is greater than the second protuberance.
Adopt the stator magnet steel disc of above technical scheme, be generally applied in DDR motor, only need multiple magnetic steel of stator sheet head inwardly when mounted, directly card just can realize connecting mutually, easy accessibility.And compared with existing stator magnet steel disc, save a pin, thus save the cost installed.
In some embodiments, the first protuberance is located at stator magnet steel disc main body both sides, and the second protuberance is also located at stator magnet steel disc main body both sides.The structure of stator magnet steel disc is symmetrical, is conducive to uniform stressed.
In some embodiments, the first protuberance and the second protuberance extend along the circumferencial direction of stator assembly.
In some embodiments, the second protuberance is inclined-plane along the top of the circumferencial direction of stator assembly, and the oblique angle on inclined-plane is the half of the angle of the number cutting angle of circumference of stator magnet steel disc in stator assembly.Namely the oblique angle on inclined-plane is (360/n)/2, and wherein, n is total number of stator magnet steel disc in a stator assembly.This design ensure that in stator assembly, and the second protuberance of all stator magnet steel discs is closely connected, and forms an entirety.
In some embodiments, the first protuberance end face outside is arc, and its arc length is the arc length that the number of stator magnet steel disc in stator assembly divides equally the outer circumference of stator assembly.Namely the arc length of arc is (D π)/n, and wherein D is the outer dia of stator assembly, and n is total number of stator magnet steel disc in a stator assembly.This design ensure that the outer rim of stator assembly is for circular, not only stressed more even.And can effectively avoid wiping between stator assembly outer rim and housing touching.
Accompanying drawing explanation
Fig. 1 is the structure vertical view of existing stator magnet steel disc.
Fig. 2 is the vertical view of the stacking formation stator core of magnetic steel of stator sheet as shown in Figure 1.
Fig. 3 is the stereogram of the stator magnet steel disc of a kind of execution mode of the utility model.
Fig. 4 is the vertical view of stator magnet steel disc as shown in Figure 3.
Fig. 5 is the vertical view of the stacking formation stator core of magnetic steel of stator sheet as shown in Figure 3.
Embodiment
In description of the present utility model, it will be appreciated that, the orientation of the instruction such as " middle part ", " interior ", " outward ", " overlooking " in term or position relationship are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of the device of instruction or hint indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection ", " being connected " should be interpreted broadly, and such as, can be fixedly connected with, and also can be that dismounting connects, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also can be indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term can be understood at concrete meaning of the present invention.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Fig. 3 to Fig. 5 show schematically show the stator magnet steel disc 1 according to a kind of execution mode of the present utility model.As shown in the figure, this device comprises head 11, first protuberance 12 and the second protuberance 13.Wherein, head 11 is located at one end of stator magnet steel disc 1 main body, and the first protuberance 12 is located at the other end of stator magnet steel disc 1 main body, and the second protuberance 13 is located at the middle part of stator magnet steel disc 1 main body.First protuberance 12 is identical with the direction that the second protuberance 13 extends, and the development length of the first protuberance 12 is greater than the second protuberance 13.
The structure of stator magnet steel disc 1 is symmetrical, is conducive to uniform stressed.First protuberance 12 is located at stator magnet steel disc 1 main body both sides, and the second protuberance 13 is also located at stator magnet steel disc 1 main body both sides.First protuberance 12 and the second protuberance 13 extend along the circumferencial direction of stator assembly.
Second protuberance 13 is inclined-plane 13a along the top of the circumferencial direction of stator assembly, and the oblique angle of inclined-plane 13a is the half of the angle of the number cutting angle of circumference of stator magnet steel disc 1 in stator assembly.Namely the oblique angle α of inclined-plane 13a is (360/n)/2, and wherein, n is total number of stator magnet steel disc in a stator assembly.This design ensure that in stator assembly, and the second protuberance of all stator magnet steel discs is closely connected, and forms an entirety.In the present embodiment, n is 54, and namely a stator assembly comprises 54 identical stator magnet steel discs 1, so the oblique angle α of inclined-plane 13a=(360/54)/2=3.33 (degree).
First protuberance 12 end face outside 12a is arc, and its arc length d is the arc length that the number of stator magnet steel disc 1 in stator assembly divides equally the outer circumference of stator assembly.Namely the arc length d of arc is (D π)/n, and wherein D is the outer dia of stator assembly, and n is total number of stator magnet steel disc in a stator assembly.This design ensure that the outer rim of stator assembly is for circular, not only stressed more even.And can effectively avoid wiping between stator assembly outer rim and housing touching.
Adopt the stator magnet steel disc 1 of above technical scheme, be generally applied in DDR motor.
Only need the head 11 of multiple stator magnet steel disc 1 inwardly when mounted, directly card just can realize connecting mutually, easy accessibility.And compared with existing stator magnet steel disc, save a pin, thus save the cost installed.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (5)
1. stator magnet steel disc, it is characterized in that, comprise head, the first protuberance and the second protuberance, described head is located at one end of described stator magnet steel disc main body, described first protuberance is located at the other end of described stator magnet steel disc main body, described second protuberance is located at the middle part of described stator magnet steel disc main body, and described first protuberance is identical with the direction that the second protuberance extends, and the development length of the first protuberance is greater than the second protuberance.
2. stator magnet steel disc according to claim 1, is characterized in that, described first protuberance is located at described stator magnet steel disc main body both sides, and the second protuberance is also located at described stator magnet steel disc main body both sides.
3. stator magnet steel disc according to claim 2, is characterized in that, described first protuberance and the second protuberance extend along the circumferencial direction of described stator assembly.
4. stator magnet steel disc according to claim 3, it is characterized in that, described second protuberance is inclined-plane along the top of the circumferencial direction of described stator assembly, and the oblique angle on described inclined-plane is the half of the angle of the number cutting angle of circumference of stator magnet steel disc in stator assembly.
5. stator magnet steel disc according to claim 3, is characterized in that, described first protuberance end face outside is arc, and its arc length is the arc length that the number of stator magnet steel disc in stator assembly divides equally the outer circumference of stator assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520660933.3U CN204967440U (en) | 2015-08-28 | 2015-08-28 | Stator magnet steel piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520660933.3U CN204967440U (en) | 2015-08-28 | 2015-08-28 | Stator magnet steel piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967440U true CN204967440U (en) | 2016-01-13 |
Family
ID=55062480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520660933.3U Active CN204967440U (en) | 2015-08-28 | 2015-08-28 | Stator magnet steel piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204967440U (en) |
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2015
- 2015-08-28 CN CN201520660933.3U patent/CN204967440U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |