CN2831598Y - Permanent-magnet claw-shape stepmotor - Google Patents
Permanent-magnet claw-shape stepmotor Download PDFInfo
- Publication number
- CN2831598Y CN2831598Y CN 200520087103 CN200520087103U CN2831598Y CN 2831598 Y CN2831598 Y CN 2831598Y CN 200520087103 CN200520087103 CN 200520087103 CN 200520087103 U CN200520087103 U CN 200520087103U CN 2831598 Y CN2831598 Y CN 2831598Y
- Authority
- CN
- China
- Prior art keywords
- stator
- utmost point
- tooth
- permanent
- stepper motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
The utility model discloses a permanent-magnet type claw-shaped step motor, which comprises a casing body, a stator, a rotor, and a mounting plate, wherein the casing body is integral and comprises a single body structure of a back cover and a traditional outer casing, the back part of the casing body is provided with a punched hole, and a back bearing is arranged inside the punched hole; the front part of the casing body is fixedly connected with the mounting plate, and a front bearing is arranged on the mounting plate; the rotor is arranged between the front bearing and the back bearing and is sheathed inside the stator; the stator comprises front and back stator main bodies which are formed by injection molding by four same pole teeth so as to comprise a wire frame, and a copper wire which is wound on the wire frame so as to form a coil; the front and the back stators are fixedly connected mutually and are fixedly connected inside the casing body. The permanent-magnet type claw-shaped step motor has the characteristics of more compact structure, easier processing, lower manufacture cost and more convenient installation after adopting the structure. The permanent-magnet type claw-shaped step motor does not need point welding, and the problem of clamping motor rotation which is caused by a spark ball does not exist at all. In addition, the inside stator only adopts simple pole teeth (YOKE), thus, mold cost and maintenance cost are reduced effectively.
Description
Technical field
The utility model relates to a kind of stepper motor, particularly relates to a kind of permanent-magnet claw type stepper motor.
Background technology
The permanent-magnet claw type stepper motor of prior art is made of parts such as mounting panel, fore bearing, shell, bonnet, rear bearing, coil, stator, rotors usually.Generally comprised mounting panel, fore bearing, shell, bonnet, rear bearing from the parts of obviously seeing in appearance, wherein, mounting panel and shell, bonnet and shell all adopt a welding; Bearing and mounting panel, bonnet then adopt the method for riveted joint to assemble.The installation that realizes these parts just needs spot welder (2) and riveting machine equipment such as (2), spot welder is the high equipment of price still not, and during welding, be easy to generate spark ball, if these spark balls are by omission, move between rotor (ROTOR) and the stator (STATOR), will cause the fatal revolution phenomenon that " gets stuck ".In addition, heat seal strength also is not easy to guarantee, the market complaint that mounting panel comes off often occurs.See on the structure internally, generally comprised coil, stator, rotor, wherein, coil is formed on coil holder by copper cash, and coil holder is that resin forming comes, and die cost is very high; Stator is made up of 2 kinds of utmost point teeth (YOKE), and utmost point tooth a is the stamping parts through dark pull, its stamping Die Design complexity, and difficulty of processing is big, so expense is also high, adds utmost point tooth b, needs to process 2 molds simultaneously.
The utility model content
The purpose of this utility model is to overcome the deficiency of prior art, a kind of permanent-magnet claw type stepper motor is provided, has more compact structure, process simpler and easy, cost of manufacture is lower, characteristics more easily are installed, it need not put welding, the problem that does not exist spark ball that revolution is blocked; And internal stator only adopts a kind of simple utmost point tooth (YOKE), has reduced die cost and maintenance cost effectively.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of permanent-magnet claw type stepper motor, and it comprises housing, stator, rotor, mounting panel; Described housing is the monomer structure that one includes bonnet and conventional enclosure, and the rear portion of housing is provided with punching, and rear bearing is housed in the punching; The front portion of housing connects with the mounting panel immobile phase, and fore bearing is housed on the mounting panel; Rotor is contained between the forward and backward bearing and is enclosed within the stator; Described stator includes the forward and backward stator body that is included coil holder by 4 the same utmost point teeth process injection mo(u)ldings constitutes coil with being wrapped in coil holder copper cash; Forward and backward stator immobile phase each other connects and is fixed in the housing.
Described housing is the monomer structure that is made by disposable punching press that one includes bonnet and conventional enclosure; Owing to adopt conventional enclosure and the disposable punching press of bonnet are come out, so just do not have the some welding problem of bonnet and conventional enclosure.
Described front/rear stator comprises that two have identical shaped utmost point tooth, and utmost point tooth is provided with some denticles, and the dislocation of the denticle of the two poles of the earth tooth is to cover, and the surface of the annular concave path that surrounds at the two poles of the earth tooth is coated with the resinite layer, and resinite also is filled in the space between the tooth of the two poles of the earth; Like this, with utmost point tooth moulding together, effectively utilized the motor inner space when just making the coil holder injection moulding, coil holder is more stable simultaneously, and the motor energising can not produce when rotating because the vortex flow influence that the oscillating magnetic field that traditional independent resin coil does not fixedly cause causes; Just reduced the noise of motor from structure.
The periphery wall of described utmost point tooth is provided with first otch and second otch, becomes the angles of 9 degree between the center line of the center line of first otch and the denticle of adjacent poles tooth, becomes 90 to spend angles between the center line of the center line of second otch and first otch.Like this, just tandem 2 utmost point teeth (YOKE) can be embedded in together by different otch in the axial direction, just interlaced between tooth and the tooth, form accurate utmost point tooth angle degree position relation.Therefore four utmost point teeth that constitute front/rear stator only need a kind of diel just can realize.
The facewidth of the denticle of described utmost point tooth is 1/10 of a utmost point tooth internal diameter circumference, and the denticle height is 0.6 of a utmost point tooth internal diameter size, and the tooth top of denticle is shaped as semicircle, and denticle is contraction gradually the end of by to the top.Like this, just improved the relative area of stator and rotor effectively.
Described utmost point tooth also is provided with some through holes, is full of resinite in the through hole.Like this, help increasing bonding strength between the tooth of the two poles of the earth.
Described fore bearing internal diameter comprise the internal diameter of riveting deforming position and with the internal diameter of the contact site of axle; The internal diameter of described riveted joint deforming position greater than with the internal diameter of the contact site of axle; The riveted joint deflection just can not influence contacting of axle and fore bearing like this.
Spring leaf also is housed between described rotor and the mounting panel; When it is subjected to axial compressive force, will produces counteractive elastic force and push down rotor; The elastic force size of spring leaf is by material and thickness decision.
The internal diameter of described utmost point tooth is 1/2nd of an external diameter.
During making, the utility model is with the shell integration, be divided into tandem shell usually and change a complete part into, and bonnet also and outer shell integrated, and like this, housing has in fact just comprised the forward and backward shell and the bonnet of former technology.Punching on the bonnet position of housing, like this, rear bearing can be riveted on the inside.After adopting this mode, just not existing needs between bonnet and the shell to realize having assembled by technologies such as weldings.Inner utmost point tooth, owing to adopt the little otch of corresponding location, one in front and one in back the utmost point tooth of position is correspondingly pressed different incisions one a positive antidirection finding, the accurate location that can realize utmost point tooth.In the type structure that utmost point tooth is formed by 5 teeth, the angle between otch and the otch is 90 degree, and promptly first tooth and first otch constitute 9 and spend.When located by this otch on two utmost point back of tooth backrest ground, two neighbouring teeth just formed the 18 degree angles of staggering mutually.So, clockwise second tooth and second otch constitute 27 degree angles.Two utmost point tooth teeth are located by second otch tooth ground, and the adjacent tooth in the left and right sides just forms uniform 36 degree angles.Similarly, forward and backward stator has also been realized the assembling that utmost point tooth staggers state mutually by rightabout.Before spiral, utmost point tooth is located as stated above, carry out resin forming.After moulding was finished, the coil holder that spiral is used just formed the stator of outward appearance one with utmost point tooth.On the resin platform of stator, insert the metal needle of coiling usefulness or the direct injection mo(u)lding terminal that comes out.After the coiling, in the housing of just can packing into.Certainly, housing also need have been riveted rear bearing.Forward and backward stator still by little otch location, compresses, and is coated with into glue in intermediate gap and fixes.After the drying, terminal is packed into towards the other places in the housing, and similarly, bottom and inboard in housing apply glue, and stator is fixed.Back, perhaps forward and backward stator location is welded together with the iron plate of centre by argon arc welding, and intensity can be more better like this.Insert in the housing rotor processing back, and the rear end of axle enters in the rear bearing hole.Be pressed into the graphite nylon spacer at front end, be coated with lubricant grease then.Riveted fore bearing on the mounting panel.Housing, stator, the rotor assembling semi-finished product of these semi-finished product and front are passed through orientation tool, be pressed on the housing with certain pressure.At last, utilize argon arc welding to beat 2-3 welding point, just securely whole motor body structure has been assembled at the seam crossing of housing and mounting panel.Because coil bobbin is fixed on the utmost point tooth through injection mo(u)lding, reduced the coil unstable magnetism noise that vibration does not produce fixedly the time effectively.
The beneficial effects of the utility model are, because having adopted case design is the monomer structure that one includes bonnet and conventional enclosure, rear portion at housing is provided with punching, rear bearing is housed in the punching, the front portion of housing connects with the mounting panel immobile phase, fore bearing is housed on the mounting panel, rotor is contained between the forward and backward bearing and is enclosed within the stator, forward and backward stator immobile phase each other connects and is fixed in the housing, like this, just need not put welding, spark ball and the high expense of some welder of having avoided the some welding to be easy to generate; Include the forward and backward stator body of coil holder and be wrapped in the copper cash that coil holder constitutes coil through injection mo(u)ldings owing to having adopted stator design become to include by 4 the same utmost point teeth, four utmost point teeth adopt with a kind of shape, have also saved the high expense of diel; Because adopted at the rear end shaft position to be positioned, front end has spring leaf to play cushioning effect, can reach the effect of noise elimination sound.The utlity model has more compact structure, process simpler and easy, cost of manufacture is lower, characteristics more easily are installed, it need not put welding, the problem that does not exist spark ball that revolution is blocked; And internal stator only adopts a kind of simple utmost point tooth (YOKE), has reduced die cost and maintenance cost effectively.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail; But a kind of permanent-magnet claw type stepper motor of the present utility model is not limited to embodiment.
Fig. 1 is a profile structural map of the present utility model;
Fig. 2 is a structure cutaway view of the present utility model;
Fig. 3 is a structure decomposition map of the present utility model;
Fig. 4 is the structure decomposition map of utmost point tooth in the utility model stator.
Embodiment
Shown in accompanying drawing, permanent-magnet claw type stepper motor of the present utility model has more compact structure, processes more easy characteristics.
A kind of permanent-magnet claw type stepper motor of the present utility model, it comprises housing 1, stator 2, rotor 3, mounting panel 4, fore bearing 51, rear bearing 52.
Stator 2 includes the forward and backward stator body that is included coil holder by the 20 process injection mo(u)ldings of 4 the same utmost point teeth constitutes coil with being wrapped in coil holder copper cash 30; Forward and backward stator 21,22 immobile phase each other connects and is fixed in the housing 1.
Forward and backward stator 21,22 comprises that respectively two have identical shaped utmost point tooth 20, utmost point tooth 20 is provided with 5 denticle 201, denticle 201 dislocation of the two poles of the earth tooth 20 is to cover, and the surface of the annular concave path that surrounds at the two poles of the earth tooth 20 is coated with resinite layer 23, and resinite 23 also is filled in the space between the two poles of the earth tooth 20; Like this, when just making the coil holder injection moulding with utmost point tooth 20 moulding together, effectively utilized the motor inner space, coil holder is more stable simultaneously, and the motor energising can not produce when rotating because the vortex flow influence that the oscillating magnetic field that traditional independent resin coil does not fixedly cause causes; Just reduced the noise of motor from structure.
The denticle 201 of utmost point tooth 20 evenly is located at internal perisporium, and denticle 201 is 1/10th of an internal perisporium with the width that internal perisporium joins; Between the center line of the center line that is provided with first otch 202 and second otch, 203, the first otch 202 on the periphery wall of utmost point tooth 20 and the denticle 201 of adjacent poles tooth, become the angles of 9 degree, become 90 to spend angles between the center line of the center line of second otch 203 and first otch 202.Like this, just tandem 2 utmost point teeth (YOKE) can be embedded in together by different otch in the axial direction, just interlaced between tooth and the tooth, form accurate utmost point tooth angle degree position relation.Therefore four utmost point teeth that constitute front/rear stator only need a kind of diel just can realize.
The facewidth of the denticle 201 of utmost point tooth 20 is 1/10 of a utmost point tooth internal diameter circumference, and denticle 201 highly is 0.6 of a utmost point tooth internal diameter size, and the tooth top of denticle 201 is shaped as semicircle, and denticle is contraction gradually the end of by to the top.Like this, just improved the relative area of stator 2 effectively with rotor 3.
The internal diameter of utmost point tooth is 1/2nd of an external diameter.
Fore bearing 51 internal diameters comprise the internal diameter of riveting deforming position and with the internal diameter of the contact site of axle; Wherein, the internal diameter of riveted joint deforming position greater than with the internal diameter of the contact site of axle; The riveted joint deflection just can not influence contacting of axle and fore bearing like this.
Between rotor 3 and mounting panel 4, spring leaf 61 is housed also; When it is subjected to axial compressive force, will produces counteractive elastic force and push down rotor 3; The elastic force size of spring leaf 61 is by material and thickness decision.
During making, the utility model is with the shell integration, be divided into tandem shell usually and change a complete part into, and bonnet also and outer shell integrated, and like this, housing 1 has in fact just comprised the forward and backward shell and the bonnet of former technology.Punching 11 on the bonnet position of housing 1, like this, rear bearing 52 can be riveted on the inside.After adopting this mode, just not existing needs between bonnet and the shell to realize having assembled by technologies such as weldings.Inner utmost point tooth 20, owing to adopt the little otch 202,203 of corresponding location, one in front and one in back the utmost point tooth 20 of position is correspondingly pressed different incisions one a positive antidirection finding, the accurate location that can realize utmost point tooth.In the type structure that utmost point tooth 20 is formed by 5 teeth 201, the angle between otch 202 and the otch 203 is 90 degree, and promptly first tooth 201 constitutes 9 degree with first otch 202.When located by this otch 202 on two utmost point back of tooth backrest ground, neighbouring two teeth 201 just formed the 18 degree angles of staggering mutually.So, clockwise second tooth and second otch 203 constitute 27 degree angles.Two utmost point tooth teeth are located by second otch 203 tooth ground, and the adjacent tooth in the left and right sides just forms uniform 36 degree angles.Similarly, forward and backward stator 21,22 has also been realized the assembling that utmost point tooth staggers state mutually by rightabout.Before spiral, utmost point tooth is located as stated above, carry out resin forming.After moulding was finished, the coil holder that spiral is used just formed the stator of outward appearance one with utmost point tooth.On the resin platform of stator, insert the metal needle of coiling usefulness or the direct injection mo(u)lding terminal 24 that comes out.After the coiling, in the housing 1 of just can packing into.Certainly, housing 1 also need have been riveted rear bearing 52.Forward and backward stator 21,22 still by little otch 202,203 location, compresses, and is coated with into glue in intermediate gap and fixes.After the drying, terminal is packed into towards the other places in the housing 1, and similarly, bottom and inboard in housing 1 apply glue, and stator 2 is fixing.Back, perhaps forward and backward stator 21,22 location is welded together with the iron plate of centre by argon arc welding, and intensity can be more better like this.Insert in the housing 1 rotor 3 processing backs, and the rear end of axle 32 enters in rear bearing 52 holes.Be pressed into graphite nylon spacer 62 at front end, be coated with lubricant grease then.Riveted fore bearing 51 on the mounting panel 4.Housing 1, stator 2, the rotor 3 assembling semi-finished product of these semi-finished product and front are passed through orientation tool, be pressed on the housing 1 with certain pressure.At last, utilize argon arc welding to beat 2-3 welding point, just securely whole motor body structure has been assembled at the seam crossing of housing 1 and mounting panel 4.Because coil bobbin is fixed on the utmost point tooth 20 through injection mo(u)lding, reduced the coil unstable magnetism noise that vibration does not produce fixedly the time effectively.
Claims (9)
1. permanent-magnet claw type stepper motor, it comprises housing, stator, rotor, mounting panel; It is characterized in that: described housing is the monomer structure that one includes bonnet and conventional enclosure, and the rear portion of housing is provided with punching, and rear bearing is housed in the punching; The front portion of housing connects with the mounting panel immobile phase, and fore bearing is housed on the mounting panel; Rotor is contained between the forward and backward bearing and is enclosed within the stator; Described stator includes the forward and backward stator body that is included coil holder by 4 the same utmost point teeth process injection mo(u)ldings constitutes coil with being wrapped in coil holder copper cash; Forward and backward stator immobile phase each other connects and is fixed in the housing.
2. a kind of permanent-magnet claw type stepper motor according to claim 1 is characterized in that: described housing is the monomer structure that is made by disposable punching press that one includes bonnet and conventional enclosure.
3. a kind of permanent-magnet claw type stepper motor according to claim 1, it is characterized in that: described front/rear stator comprises that two have identical shaped utmost point tooth, utmost point tooth is provided with some denticles, the denticle dislocation of the two poles of the earth tooth is to cover, the surface of the annular concave path that surrounds at the two poles of the earth tooth is coated with the resinite layer, and resinite also is filled in the space between the tooth of the two poles of the earth.
4. a kind of permanent-magnet claw type stepper motor according to claim 3, it is characterized in that: the periphery wall of described utmost point tooth is provided with first otch and second otch, become the angles of 9 degree between the center line of the center line of first otch and the denticle of adjacent poles tooth, become 90 to spend angles between the center line of the center line of second otch and first otch.
5. a kind of permanent-magnet claw type stepper motor according to claim 3, it is characterized in that: the facewidth of the denticle of described utmost point tooth is 1/10 of a utmost point tooth internal diameter circumference, the denticle height is 0.6 of a utmost point tooth internal diameter size, and the tooth top of denticle is shaped as semicircle, and denticle is contraction gradually the end of by to the top.
6. a kind of permanent-magnet claw type stepper motor according to claim 3 is characterized in that: described utmost point tooth also is provided with some through holes, is full of resinite in the through hole.
7. a kind of permanent-magnet claw type stepper motor according to claim 1 is characterized in that: described fore bearing internal diameter comprise the internal diameter of riveting deforming position and with the internal diameter of the contact site of axle; The internal diameter of described riveted joint deforming position greater than with the internal diameter of the contact site of axle.
8. a kind of permanent-magnet claw type stepper motor according to claim 1 is characterized in that: spring leaf also is housed between described rotor and the mounting panel.
9. a kind of permanent-magnet claw type stepper motor according to claim 3 is characterized in that: the internal diameter of described utmost point tooth is 1/2nd of an external diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087103 CN2831598Y (en) | 2005-09-12 | 2005-09-12 | Permanent-magnet claw-shape stepmotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520087103 CN2831598Y (en) | 2005-09-12 | 2005-09-12 | Permanent-magnet claw-shape stepmotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2831598Y true CN2831598Y (en) | 2006-10-25 |
Family
ID=37136518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520087103 Expired - Lifetime CN2831598Y (en) | 2005-09-12 | 2005-09-12 | Permanent-magnet claw-shape stepmotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2831598Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160149443A1 (en) * | 2014-11-26 | 2016-05-26 | Ricoh Company, Ltd. | Permanent magnet motor, position estimation apparatus and motor drive control apparatus |
| CN105656234A (en) * | 2014-11-26 | 2016-06-08 | 株式会社理光 | Permanent magnet motor, position estimation apparatus and motor drive control apparatus |
| CN106968970A (en) * | 2007-06-05 | 2017-07-21 | 瑞思迈发动机及马达技术股份有限公司 | Air blower with bushed bearing |
| CN108028555A (en) * | 2015-10-22 | 2018-05-11 | 三星电子株式会社 | Motor and motor control circuit |
| US10411528B2 (en) | 2015-10-22 | 2019-09-10 | Samsung Electronics Co., Ltd. | Motor and motor control circuit |
-
2005
- 2005-09-12 CN CN 200520087103 patent/CN2831598Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968970A (en) * | 2007-06-05 | 2017-07-21 | 瑞思迈发动机及马达技术股份有限公司 | Air blower with bushed bearing |
| US11293453B2 (en) | 2007-06-05 | 2022-04-05 | Resmed Motor Technologies Inc | Positive airway pressure device including blower and support system therefor |
| US20160149443A1 (en) * | 2014-11-26 | 2016-05-26 | Ricoh Company, Ltd. | Permanent magnet motor, position estimation apparatus and motor drive control apparatus |
| CN105656234A (en) * | 2014-11-26 | 2016-06-08 | 株式会社理光 | Permanent magnet motor, position estimation apparatus and motor drive control apparatus |
| CN105656234B (en) * | 2014-11-26 | 2018-09-04 | 株式会社理光 | Permanent magnet motor, position estimation device and motor drive control device |
| US10680471B2 (en) * | 2014-11-26 | 2020-06-09 | Ricoh Company, Ltd. | Permanent magnet motor, position estimation apparatus and motor drive control apparatus |
| CN108028555A (en) * | 2015-10-22 | 2018-05-11 | 三星电子株式会社 | Motor and motor control circuit |
| US10411528B2 (en) | 2015-10-22 | 2019-09-10 | Samsung Electronics Co., Ltd. | Motor and motor control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2831598Y (en) | Permanent-magnet claw-shape stepmotor | |
| US6211587B1 (en) | Electric rotating machine | |
| US8110956B2 (en) | Small motor of quadrangular external shape | |
| US7148598B2 (en) | Spoke permanent magnet rotors for electrical machines and methods of manufacturing same | |
| KR101865230B1 (en) | Split-core type motor and method of manufacturing armature of split-core type motor | |
| CN103683595B (en) | Electric rotating machine and magnetic pole piece making method | |
| CN1238948C (en) | Method for manafacturing iron core for washer | |
| CN100559681C (en) | Brushless electric machine | |
| EP1806822A1 (en) | Motor generator and automobile carrying the same | |
| JPWO2007114079A1 (en) | Motor, motor manufacturing method and compressor | |
| CN101841193A (en) | Pellet and the magnetic pole core that is used for the use pellet of motor | |
| JPWO2020017133A1 (en) | Distributed winding radial gap type rotary electric machine and its stator | |
| CN1956292A (en) | Commutator motor | |
| EP2157678A1 (en) | Small motor of polygonal external shape | |
| EP1641107A1 (en) | Stepping motor and method of manufacturing the same | |
| JP2015501126A (en) | Electric machine | |
| CN1140702C (en) | Linear compressor piston operation assembly and its manufacturing method | |
| JP5327094B2 (en) | Brushless motor stator, brushless motor, and electric power steering apparatus | |
| JP3252072B2 (en) | Power supply for small motor | |
| JP5003425B2 (en) | Rotor and manufacturing method thereof, rotating electric machine, and compressor | |
| US7414344B2 (en) | Commutator and an armature | |
| JPH11332010A (en) | Motor for hybrid vehicle | |
| JPH11155263A (en) | Stator for dynamo electric machine | |
| JP3617827B2 (en) | Permanent magnet rotor and manufacturing method thereof | |
| KR100321870B1 (en) | A vibration motor of flat type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XIAMEN DAZHEN MOTORS CO., LTD. Free format text: FORMER NAME OR ADDRESS: DAZHEN MAGNETIC RECORDS CO., LTD., XIAMEN |
|
| CP03 | Change of name, title or address |
Address after: Fujian city of Xiamen province Tong'an District Hongtang Head Road 142, zip code: 361006 Patentee after: Xiamen Dazhen Motor Co., Ltd. Address before: 28, Huli Avenue, Xiamen, Fujian Province, China: 361006 Patentee before: Xiamen Dazhen Magnetic Record Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20061025 |
|
| EXPY | Termination of patent right or utility model |