CN101867237A - Stator iron core - Google Patents
Stator iron core Download PDFInfo
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- CN101867237A CN101867237A CN200910130804A CN200910130804A CN101867237A CN 101867237 A CN101867237 A CN 101867237A CN 200910130804 A CN200910130804 A CN 200910130804A CN 200910130804 A CN200910130804 A CN 200910130804A CN 101867237 A CN101867237 A CN 101867237A
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Abstract
The invention discloses a stator iron core which is an integrally-formed magnetizer. An insulating layer is covered on the surface of the magnetizer to provide the advantages of reducing integral axial height, simplifying structure complexity, promoting assembly convenience and the like. Besides, the magnetizer comprise a ring circle part, a plurality of polar teeth and a plurality of magnetic pole parts, wherein the ring circle part is provided with an inner periphery, an accommodating space is formed by encircling the inner periphery, each pole tooth is respectively provided with a first end and a second end, the first end is connected with the inner periphery of the ring circle part, the second end extends to the accommodating space, and each magnetic pole part is respectively connected with the second end of each of the pole teeth, thereby the stator iron core can be suitable for a stator structure of an internal rotor type motor; or, each pole tooth can respectively form an arc guide part so as to be beneficial to carrying out winding operation.
Description
Technical field
The present invention is about a kind of stator structure, especially a kind of motor that can be used for, and the stator core of more simplifying on the more simple and easy and structure in the assembling.
Background technology
Please refer to shown in Figure 1ly, existing stator core 8 comprises several silicon steel sheets 81 and two insulating cases 82, and respectively this silicon steel sheet 81 is made moulding with impact style.Wherein respectively this silicon steel sheet 81 has a ring body 811 respectively, and several support arms 812 are extended in these ring body 811 inboards, and respectively these support arm 812 ends form a magnetic pole strength 813 respectively; After respectively this silicon steel sheet 81 mutually combines by stack manner, again this two insulating case 82 is incorporated into respectively two ends of this silicon steel sheet 81 respectively, and this two insulating case 82 is respectively equipped with also to several extensions 821 that should several support arms 812.
Please refer to shown in Fig. 1 and 2, this stator core 8 can be wound in each support arm 812 of this silicon steel sheet 81 and each extension 821 of this insulating case 82 respectively according to the predefined number of turns with several enamelled wires 83, so that constitute a stator structure when reality is used.Whereby, this stator structure can cooperate as members such as rotor and pedestal (not illustrating) and form a motor configuration.
Generally speaking, existing stator core 8 must make between this silicon steel sheet 81 and this enamelled wire 83 to reach insulation effect by the design of this insulating case 82, and with the effect of protecting this enamelled wire 83.Yet,, cause the axial height of this stator core 8 to increase on the contrary but be somebody's turn to do two insulating cases 82 that have stator core 8 now owing at present common on the market motor designs towards microminiaturized direction research and development gradually; When this stator core 8 during as the stator structure of motor, will the overall volume and the axial height of this motor can't effectively be reduced, cause this motor can't reach microminiaturized purpose.
Moreover existing stator core 8 must be piled up these several silicon steel sheets 81 mutually, therefore, also causes the very big inconvenience in these stator core 8 assemblings; Again when these several silicon steel sheets 81 pile up mutually finish after, also must be in addition in two ends of these several silicon steel sheets 81 respectively in conjunction with this insulating case 82, cause this stator core 8 more difficult in assembling, and increase the structure complexity of this stator core 8 relatively, and do not meet economic benefit.
Please refer to shown in Figure 3, for TaiWan, China is announced " motor stator " patent case I299601 number, the existing stator core 9 of this another kind comprises a hollow sleeved part 91 and several polar arms 92, respectively this polar arm 92 distributes radially along these hollow sleeved part 91 outer rims, and each polar arm 92 is established one in addition and inhaled magnet 921 in the outer end; Wherein this stator core 9 is one-body molded, and each polar arm 92 respectively is provided with a depressed area 93 between this hollow sleeved part 91 and this suction magnet 921, and respectively this depressed area 93 can be twined to finish the winding operation of this stator core 9 for a coil (not illustrating) respectively.
By the design of the depressed area 93 of this stator core 9, because this depressed area 93 is just corresponding to the coiling position of this coil, therefore can the more winding turns of winding under the constant condition of stator shaft orientation height.Yet, because this depressed area 93 does not have the structural design that can concentrate guiding coil and effective set winding, so this coil is in the process that winds the line, and can't effectively concentrate on the respectively central part of this polar arm 92, cause this coil to be not easy to wind the line, and this coil all possibly can't be positioned the predetermined position of this stator core 9 really in carrying out the coiling process or after finishing winding operation, and must position by auxiliary this coil of other tools again, cause the inconvenience on the winding operation.In addition, when this stator core 9 is equiped with insulating case, can cause problems such as axial height increase and the increase of assembling complexity too.
Please refer to shown in Figure 4, first position (A) that existing stator core 9 does not adjoin each other at this polar arm 92 respectively and this suction magnet 921 respectively or this hollow sleeved part 91 and respectively second position (B) that adjoins each other of this polar arm 92 further enlarge the sectional area of its magnetic circuit again, when causing this coil at the feeding electric current and in these stator core 9 generation magnetic lines of force, the magnetic resistance at this first position (A) or this second position (B) can't effectively reduce.
Moreover, with external-rotor motor now compared to inner rotor motor, external-rotor motor roughly has problems such as the relatively poor and rotating speed of rotational stabilization is lower, because electronic product generally towards direction research and development designs such as high speed, function integration and microminiaturized trend, causes the also lifting gradually of the desired heat sinking function of electronic product now.Therefore, the aforementioned existing radiator fan that is driven with external-rotor motor can't satisfy the radiating requirements of portions of electronics product fully, so also there are more and more many electronic products to gradually adopt inner rotor motor to drive radiator fan.Yet owing to should have the outer rim that several polar arms 92 of stator core 9 are distributed in this hollow sleeved part 91 radially now, therefore, this stator core 9 is only applicable to the stator structure of external-rotor motor, and can't further be applicable to the stator structure of inner rotor motor.
Summary of the invention
The invention provides a kind of stator core,, be main goal of the invention in order to solve too shortcoming such as complexity and assembling inconvenience of aforementioned existing stator core structure.
Another goal of the invention of stator core of the present invention is for can all being positioned the predetermined position of this stator core really for this coil in the process that winds the line or after finishing winding operation.
Another goal of the invention of stator core of the present invention can effectively reduce this stator core and produce the magnetic resistance phenomenon.
Another goal of the invention of stator core of the present invention provides and can concentrate the guiding coil conveniently to carry out the stator core of winding operation.
Another goal of the invention of stator core of the present invention can further reduce the axial height of this stator core.
Another goal of the invention of stator core of the present invention can further be omitted as members such as insulating cases.
For reaching aforementioned goal of the invention, technological means that the present invention used and the effect that can reach by this technological means include:
A kind of stator core, a magnetic conductor that is formed in one, this magnetic conductor surface coats an insulating barrier, wherein this magnetic conductor comprises a loop portions, several utmost point teeth and several magnetic pole pieces, and this loop portions has an inner peripheral, and this inner peripheral is around forming an accommodation space, respectively this utmost point tooth has one first end and one second end respectively, this first end connects the inner peripheral of this loop portions, and this second end extends to this accommodation space, and respectively this magnetic pole piece connects respectively second end of this utmost point tooth respectively.Whereby, this stator core is applicable to the stator structure of inner rotor motor, and can reach and simplify structure, the assembling convenience is good and reduces many effects such as whole axial height.
Described respectively this utmost point tooth has the arc guide part respectively, and respectively this arc guide part lays respectively at this loop portions and respectively between this magnetic pole piece.Whereby, when several coils being wound in respectively this utmost point tooth respectively, having and make the respectively more easy effect of winding operation of this coil.
Described these several arc guide parts are formed at two side surfaces that these several utmost point teeth make progress in the footpath respectively.Whereby, this coil respectively can be concentrated effectively and be directed to the respectively central part of this utmost point tooth, to reach the effect that promotes the coiling convenience.
Described these several arc guide parts are formed at upper surface and the lower surface of these several utmost point teeth on axially respectively.Whereby, provide another kind of structural design, be directed to the respectively central part of this utmost point tooth, to reach the effect that promotes the coiling convenience and this coil respectively can be concentrated effectively equally.
Described these several arc guide parts lay respectively at the position that this loop portions and this utmost point tooth respectively adjoin each other.Whereby, can suitably enlarge the adjoin each other sectional area of magnetic circuit at position of this loop portions and this utmost point tooth respectively, but and the structural strength at this position of efficient hardening, and reduce this issuable magnetic resistance in position.
Described these several arc guide parts lay respectively at the position that this utmost point tooth respectively and this magnetic pole piece respectively adjoin each other.Whereby, can suitably enlarge the adjoin each other sectional area of magnetic circuit at position of this utmost point tooth respectively and this magnetic pole piece respectively, but and the structural strength at this position of efficient hardening, and reduce this issuable magnetic resistance in position.
The loop portions of described magnetic conductor has a first end and a second end, and this magnetic conductor forms several positioning convex portion in wherein at least one end of this first end and the second end.Whereby, when process that this coil is respectively winding the line or after finishing winding operation, can utilize all respectively that this positioning convex portion forms locating effect, to promote the convenience of winding operation.
A kind of stator core, a magnetic conductor that is formed in one, this magnetic conductor comprises a loop portions, several utmost point teeth and several magnetic pole pieces, this loop portions has an inner peripheral, this inner peripheral is around forming an accommodation space, respectively this utmost point tooth has one first end and one second end respectively, this first end connects the inner peripheral of this loop portions, this second end extends to this accommodation space, respectively this magnetic pole piece connects respectively second end of this utmost point tooth respectively, wherein respectively this utmost point tooth has the arc guide part respectively, and respectively this arc guide part lays respectively at this loop portions and respectively between this magnetic pole piece.Whereby, can reach equally and simplify structure and assembling many effects such as convenience is good.
Described this magnetic conductor surface coated insulation layer.By this insulating barrier is the thin layer that is coated on this magnetic conductor surface, then can reach the effect that further reduces the whole axial height of this stator core.
Description of drawings
Fig. 1: the three-dimensional exploded view of first kind of existing stator core.
Fig. 2: the stereo appearance figure of first kind of existing stator core.
Fig. 3: the stereo appearance figure of second kind of existing stator core.
Fig. 4: the magnetic force distribution schematic diagram of second kind of existing stator core.
Fig. 5: the stereo appearance figure of the magnetic conductor of the stator core of first embodiment of the invention.
The vertical view cutaway drawing of the stator core of Fig. 6 first embodiment of the invention.
The magnetic force distribution schematic diagram of the stator core of Fig. 7 first embodiment of the invention.
Fig. 8: the stereo appearance figure of the magnetic conductor of the stator core of second embodiment of the invention.
The sectional view of the stator core of Fig. 9 second embodiment of the invention.
The stereo appearance figure of the magnetic conductor of the stator core of Figure 10 third embodiment of the invention.
The user mode reference diagram of the stator core of Figure 11 third embodiment of the invention when winding the line.
User mode reference diagram after the stator core of Figure 12 third embodiment of the invention winds the line.
The main element symbol description:
1,2 stator cores, 10 magnetic conductors, 11 loop portions, 111 inner peripherals
112 accommodation spaces, 12 utmost point teeth, 121 first ends, 122 second ends
123 arc guide parts, 13 magnetic pole pieces, 20 insulating barriers, 30 coils
40 magnetic conductors, 41 loop portions, 411 inner peripherals, 412 accommodation spaces
42 utmost point teeth, 421 first ends, 422 second ends, 423 arc guide parts
43 magnetic pole pieces, 50 insulating barriers, 60 coils, 70 magnetic conductors
71 loop portions, 711 first ends, 712 the second ends, 713 positioning convex portion
8 stator cores of 72 utmost point teeth, 73 magnetic pole pieces, 80 coils
81 silicon steel sheets, 811 ring bodies, 812 support arms, 813 magnetic pole strengths
9 stator cores of 82 insulating cases, 821 extensions, 83 enamelled wires
91 hollow sleeved part, 92 polar arms 921 are inhaled magnet 93 depressed areas
Embodiment
For above-mentioned and other purpose of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and conjunction with figs. are described in detail below:
Please refer to shown in Figure 5, disclose the stator core 1 of first embodiment of the invention, the magnetic conductor 10 that this stator core 1 is formed in one, as shown in Figure 6, this magnetic conductor 10 surfaces coat insulating barriers 20, the coating mode of this insulating barrier can adopt as electroplate or other suitable modes for it.
This magnetic conductor 10 comprises a loop portions 11, several utmost point teeth 12 and several magnetic pole pieces 13.This loop portions 11 is a ring body, so that the inboard inner peripheral 111 that forms of this ring body, this inner peripheral 111 is around forming an accommodation space 112; Respectively this utmost point tooth 12 has one first end 121 and one second end 122 respectively, this first end 121 is connected in the inner peripheral 111 of this loop portions 11, this second end 122 extends to this accommodation space 112, makes respectively this utmost point tooth 12 have a preset distance and ordered state radially each other; Respectively 13 of this magnetic pole pieces are connected to respectively second end 122 of this utmost point tooth 12.
Please refer to shown in Fig. 5 and 6, each utmost point tooth 12 of this magnetic conductor 10 has several arc guide parts 123 respectively, and respectively this arc guide part 123 lays respectively between this loop portions 11 and this several magnetic pole pieces 13.As shown in Figure 7, these several arc guide parts 123 are formed at two side surfaces that these several utmost point teeth 12 make progress in the footpath respectively, preferablely then be positioned at first position (C) that this loop portions 11 and this utmost point tooth 12 respectively adjoin each other, and second position (D) that adjoins each other of this utmost point tooth 12 and this magnetic pole piece 13 respectively respectively.
By the architectural feature of preceding taking off embodiment, the advantage of stator core 1 of the present invention includes at least:
Please refer to shown in Figure 6ly, utilize integrated this magnetic conductor 10, and cooperate design, can effectively improve the assembling inconvenience that is produced is piled up in existing stator core mutually with several silicon steel sheets shortcoming in order to the insulating barrier 20 that coats this magnetic conductor 10; Moreover, this insulating barrier 20 is for being coated on the skim on these magnetic conductor 10 surfaces, therefore, compared to having the insulating case that stator core is installed now, the present invention can effectively reduce whole axial height more undoubtedly, so that when being applied to various motor, all can reaching microminiaturized purpose, and hold concurrently and further to simplify this stator core 1 structure complexity and promote the assembling convenience.
Please refer to shown in Fig. 6 and 7, when stator core 1 of the present invention is wound in each utmost point tooth 12 of this magnetic conductor 10 respectively for several coils 30, can utilize the design of this arc guide part 123, this coil 30 respectively concentrated effectively be directed to the respectively central part of this utmost point tooth 12, so that easier this coil 30 is wound in each utmost point tooth 12 of this magnetic conductor 10, and then promote convenience on the winding operation of this coil 30.Moreover, when these several arc guide parts 123 are selected to lay respectively at wherein at least one position at this first position (C) and this second position (D), but also this overall construction intensity at least one position wherein of efficient hardening.
Please refer to shown in Figure 7, design by several arc guide parts 123 of stator core 1 of the present invention, also can be at this first position (C) or this second position (D) further enlarge the sectional area of its magnetic circuit again, so that this coil when this stator core 1 produces the magnetic line of force, can reduce at this first position (C) or the issuable magnetic resistance in second position (D) feeding electric current relatively.
Please refer to shown in Figure 5, each utmost point tooth 12 and each magnetic pole piece 13 of stator core 1 of the present invention are positioned at this accommodation space 112, so when this stator core 1 at the winding operation of finishing this coil 30 when constituting a stator structure, this stator structure can be in conjunction with a rotor (not illustrating), and a permanent magnet (not illustrating) of this rotor can be positioned at also contraposition this magnetic pole piece 13 respectively of this accommodation space 112.Therefore, stator core 1 of the present invention also can be used as the stator structure of inner rotor motor.
Please refer to shown in Figure 8, the stator core 2 that discloses second embodiment of the invention, this stator core 2 has a magnetic conductor 40, shown in the 9th figure, these magnetic conductor 40 surfaces also can coat an insulating barrier 50; This magnetic conductor 40 is identical with the magnetic conductor 10 of aforementioned first embodiment again, can include a loop portions 41 equally, one inner peripheral 411, one accommodation space 412, several utmost point teeth 42, one first end 421, architectural features such as one second end 422 and several magnetic pole pieces 43, both difference only is: each utmost point tooth 42 of this magnetic conductor 40 has arc guide part 423 respectively, respectively this arc guide part 423 lays respectively between this loop portions 41 and this several magnetic pole pieces 43, these several arc guide parts 423 are formed at upper surface and the lower surface of these several utmost point teeth 42 on axially respectively, preferablely be positioned at the position that this loop portions 41 and this utmost point tooth 42 respectively adjoin each other, and respectively this utmost point tooth 42 and the position that this magnetic pole piece 43 respectively adjoins each other, be beneficial to several coils 60 are wound in respectively each utmost point tooth 42 of this magnetic conductor 40.
By the architectural feature of preceding taking off embodiment, the advantage of stator core 2 of the present invention includes at least: the design that can utilize integrated this magnetic conductor 40 to reach in order to the insulating barrier 50 that coats this magnetic conductor 40 equally, reduce whole axial height to reach, simplify structure complexity and promote advantages such as assembling convenience.Moreover several these arc guide parts 423 are formed at upper surface and the lower surface of these several utmost point teeth 42 on axially respectively, and therefore, respectively this coil 60 is concentrated to the respectively central part of this utmost point tooth 42 effectively equally, with the convenience on the lifting winding operation.
Please refer to shown in Figure 10, disclose the stator core 3 of third embodiment of the invention, this stator core 3 has a magnetic conductor 70, this magnetic conductor 70 is identical with the magnetic conductor 10 of aforementioned first embodiment, can include a loop portions 71 equally, architectural features such as several utmost point teeth 72 and several magnetic pole pieces 73, and also can form arc guide part (not indicating) design as aforementioned first and second embodiment, and can coat an insulating barrier (not indicating) in these magnetic conductor 70 surfaces, the difference of present embodiment and first and second embodiment only is: the loop portions 71 of this magnetic conductor 70 has a first end 711 and a second end 712, and this magnetic conductor 70 can be selected to form several positioning convex portion 713 in a wherein end of this first end 711 and the second end 712; Perhaps this magnetic conductor 70 also can all be formed with several positioning convex portion 713 in this first end 711 and the second end 712; In embodiment as shown in the figure, respectively this positioning convex portion 713 is formed at this first end 711.
Please refer to shown in Figure 11 and 12, when several coils 80 were wound in each utmost point tooth 72 of this magnetic conductor 70 respectively, this coil 80 can utilize the respectively design of this positioning convex portion 713, really this coil 80 is positioned the predetermined position of this stator core 3.As shown in figure 11, disclose this coil 80 in carrying out the coiling process, after this coil 80 is wound in wherein a utmost point tooth 72, can utilize the respectively design of this positioning convex portion 713, with convenient with these coil 80 windings to next utmost point tooth 72 positions; As shown in figure 12, disclose this coil 80 after finishing coiling action, this coil 80 can be connected to the outer rim of this positioning convex portion 713 respectively to form the location.
By the architectural feature of preceding taking off embodiment, the advantage of stator core 3 of the present invention includes at least: can reach described many characteristics as aforementioned first and second embodiment equally; The more important thing is, this coil 80 is in the process that winds the line or after finishing winding operation, all can utilize respectively these positioning convex portion 713 formation positioning actions, thus need not position by auxiliary this coil 80 of other tools again, with the convenience of the whole winding operation of effective lifting.
As mentioned above, stator core 1,2,3 of the present invention can effectively improve the shortcoming of existing stator core really, to reach effects such as simplifying structure and assembling convenience, more can be when winding operation carries out concentrate this coil 30,60,80 in order to guide, and with the effect that can reduce magnetic resistance and reach the purpose of microminiaturization.
Claims (12)
1. stator core, it is characterized in that, the magnetic conductor that it is formed in one, this magnetic conductor surface coated insulation layer, wherein this magnetic conductor comprises a loop portions, several utmost point teeth and several magnetic pole pieces, this loop portions has an inner peripheral, this inner peripheral is around forming an accommodation space, respectively this utmost point tooth has one first end and one second end respectively, this first end connects the inner peripheral of this loop portions, this second end extends to this accommodation space, and respectively this magnetic pole piece is connected in respectively second end of this utmost point tooth respectively.
2. stator core as claimed in claim 1 is characterized in that, the loop portions of this magnetic conductor has a first end and a second end, and this magnetic conductor at least one end in this first end and the second end is formed with several positioning convex portion.
3. stator core as claimed in claim 1 or 2 is characterized in that, respectively this utmost point tooth has the arc guide part respectively, and respectively this arc guide part is in this loop portions and respectively between this magnetic pole piece.
4. stator core as claimed in claim 3 is characterized in that, these several arc guide parts are formed at two side surfaces that these several utmost point teeth make progress in the footpath respectively.
5. stator core as claimed in claim 4 is characterized in that, these several arc guide parts lay respectively at the position that this loop portions and this utmost point tooth respectively adjoin each other.
6. stator core as claimed in claim 4 is characterized in that, these several arc guide parts lay respectively at the position that this utmost point tooth respectively and this magnetic pole piece respectively adjoin each other.
7. stator core as claimed in claim 3 is characterized in that, these several arc guide parts are formed at upper surface and the lower surface of these several utmost point teeth on axially respectively.
8. stator core as claimed in claim 7 is characterized in that, these several arc guide parts lay respectively at the position that this loop portions and this utmost point tooth respectively adjoin each other.
9. stator core as claimed in claim 7 is characterized in that, these several arc guide parts lay respectively at the position that this utmost point tooth respectively and this magnetic pole piece respectively adjoin each other.
10. stator core, it is characterized in that, the magnetic conductor that it is formed in one, this magnetic conductor comprises a loop portions, several utmost point teeth and several magnetic pole pieces, this loop portions has an inner peripheral, this inner peripheral is around forming an accommodation space, respectively this utmost point tooth has one first end and one second end respectively, this first end connects the inner peripheral of this loop portions, this second end extends to this accommodation space, respectively this magnetic pole piece connects respectively second end of this utmost point tooth respectively, and wherein respectively this utmost point tooth has the arc guide part respectively, and respectively this arc guide part is in this loop portions and respectively between this magnetic pole piece.
11. stator core as claimed in claim 10 is characterized in that, this magnetic conductor surface coated insulation layer.
12., it is characterized in that the loop portions of this magnetic conductor has a first end and a second end as claim 10 or 11 described stator cores, this magnetic conductor at least one end in this first end and the second end forms several positioning convex portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910130804A CN101867237A (en) | 2009-04-15 | 2009-04-15 | Stator iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910130804A CN101867237A (en) | 2009-04-15 | 2009-04-15 | Stator iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101867237A true CN101867237A (en) | 2010-10-20 |
Family
ID=42958835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910130804A Pending CN101867237A (en) | 2009-04-15 | 2009-04-15 | Stator iron core |
Country Status (1)
| Country | Link |
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| CN (1) | CN101867237A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787279A (en) * | 2015-11-20 | 2017-05-31 | 博世汽车部件(长沙)有限公司 | Stator and the motor including it |
| CN116163975A (en) * | 2023-04-26 | 2023-05-26 | 苏州睿动电气科技有限公司 | Brushless blower |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818911A (en) * | 1985-03-09 | 1989-04-04 | Asmo Co., Ltd. | Stator of electric motor |
| US7005764B2 (en) * | 2003-12-29 | 2006-02-28 | Petersen Technology Corporation | Electrodynamic apparatus and method of manufacture |
| US20070241630A1 (en) * | 2006-04-12 | 2007-10-18 | Holmes Alan G | Stator for an electric motor and assembly method |
-
2009
- 2009-04-15 CN CN200910130804A patent/CN101867237A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4818911A (en) * | 1985-03-09 | 1989-04-04 | Asmo Co., Ltd. | Stator of electric motor |
| US7005764B2 (en) * | 2003-12-29 | 2006-02-28 | Petersen Technology Corporation | Electrodynamic apparatus and method of manufacture |
| US20070241630A1 (en) * | 2006-04-12 | 2007-10-18 | Holmes Alan G | Stator for an electric motor and assembly method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106787279A (en) * | 2015-11-20 | 2017-05-31 | 博世汽车部件(长沙)有限公司 | Stator and the motor including it |
| CN116163975A (en) * | 2023-04-26 | 2023-05-26 | 苏州睿动电气科技有限公司 | Brushless blower |
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Application publication date: 20101020 |