CN1332492C - Structure of motor stator magnetic conductive sheet consisting of single magnetic conductive sheets - Google Patents
Structure of motor stator magnetic conductive sheet consisting of single magnetic conductive sheets Download PDFInfo
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- CN1332492C CN1332492C CNB031046002A CN03104600A CN1332492C CN 1332492 C CN1332492 C CN 1332492C CN B031046002 A CNB031046002 A CN B031046002A CN 03104600 A CN03104600 A CN 03104600A CN 1332492 C CN1332492 C CN 1332492C
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- conduction sheet
- magnetic conduction
- motor stator
- magnetic pole
- magnetic
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Abstract
The present invention discloses a magnetic conductive plate structure of a motor stator, which is composed of a single magnetic conductive plate and comprises a magnetic pole plate, a plurality of magnetic pole surfaces and a shaft hole, wherein the magnetic pole plate, the magnetic pole surfaces and the shaft hole are formed on the single magnetic conductive plate which is used as a base of the stator so as to be combined with a coil. The magnetic pole surfaces are formed by punching a single magnetic conductive plate sheet, are circularly arranged at the periphery of the shaft hole, and are adjacent to the coil; the shaft hole is combined with a fixing seat so as to support a rotor. The utilization of the magnetic conductive plate of the present invention can enable a whole motor to have the functions of simplified integral construction, reduced manufacturing cost and decreased integral thickness.
Description
Technical field
The present invention relates to a kind of magnetic conduction sheet structure that constitutes motor stator by single magnetic conduction sheet, more particularly, relate to a kind of pole piece, magnetic pole strength, axis hole and pedestal that utilizes single magnetic conduction sheet punching press to form motor stator, to reduce the magnetic conduction sheet structure of motor stator the number of components, reduction integral thickness and simplification motor structure
Background technology
The motor stator of conventional axial coiling as shown in Figure 1, includes a superior pole piece group 10a, an inferior pole piece group 10b, a coil 20, a stator seat 21 and a metal central siphon 22 usually.Wherein, superior pole piece group 10a and inferior pole piece group 10b are assembled in the upper and lower both sides of stator seat 21 respectively, and are provided with a pole piece 11a, 11 and a magnetic pole strength 12a, 12b at least respectively arranged respectively at least; Coil 20 windings are in stator seat 21; And metal central siphon 22 passes the axis hole 13b of superior pole piece group 10a in regular turn, and a centre bore 23 of stator seat 21 and the axis hole 13b of inferior pole piece group 10b are so that with the synthetic motor stator of above-mentioned component sets.Because the stacked combination of said motor stator component will inevitably increase axial width, and the number of components is also too much, so the integral thickness of this motor can't effectively reduce and overall volume also can't effectively be dwindled, thereby be not suitable for ultra-thin, accurate electronic installation, for example notebook computer.
In view of this, creator among the present invention relies on it to be engaged in the experience and the practice of relevant industries for many years, and through concentrating on studies and developing, createing one eventually utilizes single magnetic conduction sheet punching press to form pole piece, magnetic pole strength and the axis hole of motor stator, and with pole piece as stator base with stator components such as carrying coil and circuit boards, thereby can effectively reduce stator component quantity and integral thickness, simplification unitary construction and reduce the magnetic conduction sheet of manufacturing cost.
Summary of the invention
The magnetic conduction sheet structure that constitutes motor stator by single magnetic conduction sheet among the present invention mainly is too much in order to solve existing motor stator the number of components, causes the problem that the motor integral thickness is blocked up, overall volume is excessive.
The secondary objective that constitutes the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet among the present invention is to provide a kind of pole piece that utilizes the magnetic conduction sheet punching press to form, this pole piece while is as the pedestal of motor stator, with stator components such as carrying coil and circuit boards, make the present invention have the effect of simplification motor stator unitary construction and reduction manufacturing cost.
The magnetic conduction sheet structure that constitutes motor stator by single magnetic conduction sheet among the present invention includes a pole piece, several magnetic pole strengths and an axis hole, and wherein, pole piece, magnetic pole strength and axis hole are formed on the single magnetic conduction sheet; This pole piece in conjunction with a coil, reaches at least one motor component of carrying as the pedestal of stator, and this motor component comprises a circuit board; Magnetic pole strength is by this single magnetic conduction sheet drawing, and ring be located at axis hole around and be in close proximity to coil; And axis hole is in conjunction with a holder, to be used to support a rotor.
Can effectively reduce integral thickness, the overall volume of motor after utilizing the magnetic conduction sheet among the present invention, and have the effect of simplifying the motor stator unitary construction and reducing manufacturing cost.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment among the present invention is described in further detail.
Fig. 1 is the three-dimensional exploded view of conventional axial coiling motor stator;
Fig. 2 is the three-dimensional structure diagram that is made of the magnetic conduction sheet of motor stator in the first embodiment of the invention single magnetic conduction sheet;
Fig. 3 constitutes the magnetic conduction sheet of motor stator and the cutaway view after the motor rotor combination by single magnetic conduction sheet in the first embodiment of the invention;
Fig. 4 is the three-dimensional structure diagram that is made of the magnetic conduction sheet of motor stator in the second embodiment of the invention single magnetic conduction sheet:
Fig. 5 constitutes the magnetic conduction sheet of motor stator and the cutaway view after first kind of combination of motor rotor by single magnetic conduction sheet in the second embodiment of the invention;
Fig. 6 constitutes the magnetic conduction sheet of motor stator and the cutaway view after second kind of combination of motor rotor by single magnetic conduction sheet in the second embodiment of the invention;
Fig. 7 constitutes the magnetic conduction sheet of motor stator and the cutaway view after the third combination of motor rotor by single magnetic conduction sheet in the second embodiment of the invention;
Fig. 8 is the three-dimensional structure diagram that is made of the magnetic conduction sheet of motor stator in the third embodiment of the invention single magnetic conduction sheet;
Fig. 9 constitutes the magnetic conduction sheet of motor stator and the cutaway view after the motor rotor combination by single magnetic conduction sheet in the third embodiment of the invention;
Constitute the three-dimensional structure diagram of the magnetic conduction sheet of motor stator in Figure 10 fourth embodiment of the invention by single magnetic conduction sheet;
Figure 11 constitutes the magnetic conduction sheet of motor stator and the cutaway view after the motor rotor combination by single magnetic conduction sheet in the fourth embodiment of the invention.
Embodiment
As shown in Figures 2 and 3, the magnetic conduction sheet that constitutes motor stator by single magnetic conduction sheet among the present invention includes a pole piece 11, several magnetic pole strengths 12 and an axis hole 13.Pole piece 11, magnetic pole strength 12 and axis hole 13 are formed on the single magnetic conduction sheet 10.This pole piece 11 is as the pedestal of stator, with in conjunction with a coil 20; These several magnetic pole strengths 12 are formed by these single magnetic conduction sheet 10 punching presses, and ring be located at axis hole 13 around and be in close proximity to coil 20; And axis hole 13 can be in conjunction with a holder 24, for support rotor 30.Thereby, when the present invention utilizes this single magnetic conduction sheet 10 to be assembled into a motor stator, can effectively reduce the quantity and the axial width of motor stator member, and reach the integrally-built purpose of simplification motor simultaneously.
Again as shown in Figures 2 and 3, in these two figure, disclosed the structure of single magnetic conduction sheet 10 in the first embodiment of the invention.This single magnetic conduction sheet 10 is made by the metal sheet punching press with magnetic conductivity, and it includes a pole piece 11, several magnetic pole strengths 12 and an axis hole 13.The main body of this single magnetic conduction sheet 10 forms pole piece 11, and this pole piece 11 can be simultaneously as the pedestal of motor stator, for the various stator components of carrying, ccontaining motor, for example axially a coil 20 and a circuit board 26 of coiling; These several magnetic pole strengths 12 are bent to form by the pole piece 11 vertical punching press that makes progress, and equally spaced be arranged around axis hole 13 around; Axis hole 13 then is formed on the centre of pole piece 11, so that group is established a holder 24 and a bearing 25.Form certain son jointly by above-mentioned member, and articulate an axostylus axostyle 31 of a rotor 30 by bearing 25, and can be the on demand corresponding outside or the inboard that is arranged on magnetic pole strength 12 of the permanent magnet 32 of this rotor 30, corresponding with this permanent magnet 32, coil 20 correspondences are located at the opposite side of magnetic pole strength 12, so can between permanent magnet 32 and magnetic pole strength 12, form the radial air gap of pre-sizing, when the generation alternation is excitatory so that the drive circuit of coil 20 on being located at circuit board 26 drives, each magnetic pole strength 12 can produce alternating magnetic field in radial air gap, thereby drives this rotor 30 rotations.
First embodiment among the present invention also can select to form at least one hole 14 on the pole piece 11 of 12 of circuit board 26 and magnetic pole strengths, so a lead 261 of this circuit board 26 can extend out to the below of the permanent magnet 32 of rotor 30 by this hole 14, so that a sensing element 262 is arranged in the punching press short slot of magnetic pole strength 12 correspondences, so that this sensing element 262 can be pressed close to permanent magnet 32 between on-stream period, to detect the variation of polarity.In addition, this axis hole 13 also can become upwards vertical extent, and promptly when punching press magnetic conduction sheet 10, simultaneously direct punching press forms the holder 24 of one, with further minimizing stator component.
Extremely shown in Figure 7 as Fig. 4, comparing among the single magnetic conduction sheet in the second embodiment of the invention and first embodiment, single magnetic conduction sheet 10 among second embodiment further has additional one group of magnetic pole strength 12 ', this magnetic pole strength 12 ' is that the vertical punching press that makes progress of the ring edge by axis hole 13 is bent to form, and equally spaced be arranged around axis hole 13 around, be that magnetic pole strength 12 and 12 ' is distinguished equally spaced Arranged rings on two concentric circless of axis hole 13, thereby form one group of internal magnetic pole face 12 ' and one group of outer magnetic pole face 12.Simultaneously, these two groups of magnetic pole strengths 12,12 ' be selectable with radially staggered or radially corresponded manner arranged setting.So, the present invention can arrange the design that promotes motor stator by this magnetic pole strength 12,12 ' multilayer magnetic pole face.As shown in Figure 5, motor is due to the inboard that can on demand coil 20 be installed in magnetic pole strength 12, and the selection group establishes the bigger rotor of a diameter 30, and permanent magnet 32 rotable rings of this rotor 30 are located at the outside of magnetic pole strength 12, and the alternating magnetic field that magnetic pole strength 12 is produced can drive rotor 30 rotations.As shown in Figure 6, motor stator also can be installed in coil 20 inboard of magnetic pole strength 12 ' on demand, and the selection group is established the less rotor of a diameter 30, the permanent magnet 32 of this rotor 30 turns between two magnetic pole strengths 12 and 12 ', and can drive rotor 30 rotations equally by the alternating magnetic field that magnetic pole strength 12 ' produces; As shown in Figure 7, this single magnetic conduction sheet 10 also is applicable to the axial air-gap motor, makes rotor 30 that an axial permanent magnet 32 ' is set, to form axial air-gap, so, but this axial permanent magnet 32 ' same induced magnetism pole-face 12,12 ' formed axial magnetic field, to drive rotor 30 rotations.
As shown in Figure 5, the lead 261 of the circuit board 26 in the second embodiment of the invention can directly extend out to the below of rotor 30 permanent magnets 32 via magnetic pole strength 12 ' corresponding punching press short slot, sensing element 262 is arranged in the punching press short slot of magnetic pole strength 12 correspondences; As shown in Figure 6, this lead 261 is also extensible is connected in the hole 14 ' of pole piece 11, so that sensing element 262 is located at the below of the permanent magnet 32 of this rotor 30; Or as shown in Figure 7, sensing element 262 is set directly at the surface of circuit board 26, with the change in polarity of inductive axis to permanent magnet 32 '.
As Fig. 8 and shown in Figure 9, among the single magnetic conduction sheet 10 in the third embodiment of the invention and first and two embodiment and magnetic conduction sheet compare, single magnetic conduction sheet 10 is further to have additional several axial magnetic pole-faces 121 among the 3rd embodiment.This axial magnetic pole-face 121 is to be formed by magnetic pole strength 12 inside vertical extent punching presses, and this single magnetic conduction sheet 10 also is applicable to the axial air-gap motor except that the radial air gap motor that is applicable to first and two embodiment.As shown in Figure 9, this axial magnetic pole-face 121 can be in the face of the axial permanent magnet 32 ' of a rotor 30, and with the formation axial air-gap, and this axial permanent magnet 32 ' can be responded to the axial magnetic pole-face 121 formed axial magnetic fields of stator, to drive rotor 30 rotations.
As shown in Figure 10 and Figure 11, single magnetic conduction sheet 10 in the fourth embodiment of the invention is compared with the single magnetic conduction sheet 10 among the 3rd embodiment, axial magnetic pole-face 122 in the single magnetic conduction sheet 10 among the 4th embodiment is directly to be bent to form by magnetic pole strength 12 outwards vertical punching presses, and this single magnetic conduction sheet 10 is equally applicable to radially reach the axial air-gap motor.As shown in figure 11, this axial magnetic pole-face 122 can be in the face of the axial permanent magnet 32 ' of this rotor 30 of induction, to drive rotor 30 rotations.
As Fig. 9 and shown in Figure 11, when the single magnetic conduction sheet 10 among the present invention the 3rd and the 4th embodiment is used in the axial air-gap motor, circuit board 26 can directly be provided with sensing element 262 in the front, so that press close to permanent magnet 32 during the motor running, detect the variation of its polarity.
As depicted in figs. 1 and 2, shown in Fig. 2 is the magnetic conduction sheet that is made of motor stator among the present invention single magnetic conduction sheet, it utilizes single magnetic conduction sheet 10 punching presses to form pole piece 11, number magnetic pole strength 12 and the axis hole 13 of motor stator, and this pole piece 11 can be used as the pedestal of motor stator, to carry other motor components.Compare with the conventional motor stator shown in Fig. 1, have the function of simplifying unitary construction, reducing manufacturing cost, dwindle integral thickness.
Though more than a plurality of preferred embodiments among the present invention are described; but can not be as protection scope of the present invention; promptly should be understood that to those skilled in the art; do not breaking away from variation and the modification that to make equivalence under the design spirit of the present invention to it; therefore; every not breaking away from the equivalence variation of having done under the design spirit of the present invention and modification, all should think to fall into protection scope of the present invention.
Claims (15)
1. one kind constitutes the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet, and it comprises:
One pole piece, this pole piece is made by a single magnetic conduction sheet, and can be used as the pedestal of stator, with in conjunction with a coil, reaches at least one motor component of carrying, and this motor component comprises a circuit board;
Several magnetic pole strengths, these several magnetic pole strengths are bent to form around pole piece by this single magnetic conduction sheet punching press; And an axis hole, this axis hole is formed on the middle position of this pole piece.
2. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: described magnetic pole strength is equally spaced being arranged around around the described axis hole.
3. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: described magnetic pole strength includes one group of internal magnetic pole face and one group of outer magnetic pole face, and these two groups of equally spaced Arranged ringses of magnetic pole strengths difference are on two concentric circless of described axis hole.
4. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 3, it is characterized in that: described internal magnetic pole face and outer magnetic pole face are radially and are crisscross arranged.
5. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 3, it is characterized in that: described internal magnetic pole face is radially corresponding setting with the outer magnetic pole face.
6. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: the further vertical extent of described magnetic pole strength forms an axial magnetic pole-face, this axial magnetic pole-face can be in the face of an axial permanent magnet of a rotor, so that the axial magnetic field that this permanent magnet induction stator shaft orientation magnetic pole strength forms.
7. must construct according to the magnetic conduction that constitutes motor stator by single magnetic conduction sheet described in the claim 6, it is characterized in that: described magnetic pole strength inwardly vertically is bent to form.
8. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 6, it is characterized in that: described magnetic pole strength outwards vertically is bent to form.
9. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: described coil groups is located at the inboard of several magnetic pole strengths.
10. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: described coil groups is located at the outside of several magnetic pole strengths.
11. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 3, it is characterized in that: described coil groups is located at the inboard of internal magnetic pole face.
12. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: described axis hole can be in conjunction with one for ccontaining one holder that is used to articulate the bearing of a rotor.
13. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 1, it is characterized in that: described axis hole includes by the pole piece vertical extent that makes progress and forms the holder of one.
14. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 13, it is characterized in that: described pole piece is provided with a hole in addition at least, this hole is used to wear a lead of described circuit board, to extend out to the below of rotor one permanent magnet, be used to be provided with a sensing element simultaneously.
15. according to constituting the magnetic conduction sheet structure of motor stator by single magnetic conduction sheet described in the claim 14, it is characterized in that: described sensing element is arranged in the punching press short slot of magnetic pole strength correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031046002A CN1332492C (en) | 2003-02-17 | 2003-02-17 | Structure of motor stator magnetic conductive sheet consisting of single magnetic conductive sheets |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031046002A CN1332492C (en) | 2003-02-17 | 2003-02-17 | Structure of motor stator magnetic conductive sheet consisting of single magnetic conductive sheets |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1523732A CN1523732A (en) | 2004-08-25 |
| CN1332492C true CN1332492C (en) | 2007-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031046002A Expired - Fee Related CN1332492C (en) | 2003-02-17 | 2003-02-17 | Structure of motor stator magnetic conductive sheet consisting of single magnetic conductive sheets |
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| CN (1) | CN1332492C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101615834B (en) * | 2008-06-24 | 2011-11-02 | 建准电机工业股份有限公司 | Brushless direct-current motor |
| CN101931300B (en) * | 2009-06-19 | 2012-07-04 | 建准电机工业股份有限公司 | Brushless DC motor and stator thereof |
| CN102347645B (en) * | 2010-08-03 | 2013-06-05 | 鸿进科技股份有限公司 | Motor pole subassembly and application thereof on motor manufacturing method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2482262Y (en) * | 2001-04-29 | 2002-03-13 | 台达电子工业股份有限公司 | Minimotor unit |
| CN1378324A (en) * | 2001-03-29 | 2002-11-06 | 台达电子工业股份有限公司 | Thin motor |
-
2003
- 2003-02-17 CN CNB031046002A patent/CN1332492C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1378324A (en) * | 2001-03-29 | 2002-11-06 | 台达电子工业股份有限公司 | Thin motor |
| CN2482262Y (en) * | 2001-04-29 | 2002-03-13 | 台达电子工业股份有限公司 | Minimotor unit |
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| Publication number | Publication date |
|---|---|
| CN1523732A (en) | 2004-08-25 |
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