CN102331531A - Device for detecting phase sequence of motor stator - Google Patents
Device for detecting phase sequence of motor stator Download PDFInfo
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- CN102331531A CN102331531A CN201110246706A CN201110246706A CN102331531A CN 102331531 A CN102331531 A CN 102331531A CN 201110246706 A CN201110246706 A CN 201110246706A CN 201110246706 A CN201110246706 A CN 201110246706A CN 102331531 A CN102331531 A CN 102331531A
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Abstract
The invention discloses a device for detecting the phase sequence of a motor stator, belonging to the field of permanent magnetic motors. The device comprises an oscilloscope, a rotor, a lower support plate and a base, wherein the oscilloscope is connected with a three-phase lead of a stator to be detected; the rotor is matched with the stator to be detected; the lower support plate is arranged below a fixing structure; the rotor comprises a permanent magnet group; the fixing structure of the permanent magnet group, a fixing structure of the permanent magnet group and a revolving shaft which passes through a central shaft of the fixing structure and is used for driving the central shaft to rotate; the lower support plate has a disk structure; the diameter of a disk is a little smaller than that of an iron core to be detected; the circle center of the disk passes through the lower part of the revolving shaft and is connected with the revolving shaft through a bearing; the base is positioned below the lower support plate and is connected with the lower support plate; the height of the base is same as that of a solenoid at the non-leading-out end of the stator to be detected; and the fixing structure, the lower support plate and the base are made of non-magnetic-conduction materials. The device for detecting the phase sequence of the motor stator provided by the invention has a simple structure, low cost and low stator rejection rate, and is easy to operate.
Description
Technical field
The present invention relates to the magneto field, particularly a kind of device that detects the permanent magnet motor stator phase sequence.
Background technology
Because global climate problem and energy problem are remarkable day by day, energy-saving and emission-reduction become the theme of social development.At machine field, the magneto of efficient energy-saving is by widespread use more and more.
The magneto complex manufacturing, especially when producing motor stator, need be to stator winding installation and wiring, the workman makes a mistake A easily in stator winding installation and wiring process; B, the C phase sequence, if A, B; Mistake appears in the C phase sequence, possibly cause motor not run well, and driver module such as burns at serious consequence.Therefore need check the permanent magnet motor stator phase sequence.Because motor gas-gap is little; Rotor has magnetic force, in the motor production run, is difficult for rotor is packed in the stator; Even reluctantly rotor is packed in the stator; Can be because of there not being the bearing on the motor shell end cover to fix rotor, and can't rotary rotor yet, thereby in the unassembled phase sequence inspection that can't carry out motor stator before intact of motor assembly.The method of the detection stator phase sequence that therefore adopts now can only adopt prime mover to drag the product motor after motor assembly has assembled again, through the A of oscillograph detection stator, B, C phase sequence.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art: if through after the oscillograph detection, find that mistake appears in the stator phase sequence; Because this motor assembly has assembled completion; This stator advances lacquer through shaping, can't do over again and adjust, and causes this stator even this motor to be scrapped; The causes motor rejection rate increases, and production cost increases.
Summary of the invention
In order to solve the problem that exists in the prior art, the embodiment of the invention provides a kind of device that detects the motor stator phase sequence.Said technical scheme is following:
A kind of device that detects the motor stator phase sequence; Said device comprises oscillograph that is connected with three phase terminals of stator to be measured and the rotor that is complementary with said stator to be measured; Said rotor comprises the fixed sturcture of set of permanent magnets, said set of permanent magnets and passes the central shaft of said fixed sturcture and drive the rotating shaft of its rotation; Said rotor also comprises lower supporting plate and the base that is located at said fixed sturcture below, and said lower supporting plate is a disc structure, and the diameter of said disk is less than the diameter of stator core to be measured; And the center of circle is passed the bottom of said rotating shaft and is connected with said rotating shaft through bearing; Said base is positioned at the below of said lower supporting plate and is connected with said lower supporting plate, and its height is identical with the line bag height of the non-leading-out terminal of stator to be measured, and said fixed sturcture, said lower supporting plate and said base are processed by non-magnet material.
Further, said rotor also comprises the upper backup pad that is positioned at said fixed sturcture top, and said upper backup pad is identical with said lower supporting plate size and material, and the top that said rotating shaft is passed in the center of circle of said upper backup pad is connected with said rotating shaft through said bearing.
Particularly, the diameter of said upper backup pad and said lower supporting plate is than the little 1-2mm of diameter of said stator core to be measured.
Particularly, said set of permanent magnets is made up of a plurality of measure-alike strip-shaped permanent-magnet bodies, and the mode that said permanent magnet replaces by N, the S utmost point is successively set on the said fixed sturcture, and the number of poles of said set of permanent magnets is identical with the number of poles of treating measured motor.
Particularly; Said fixed sturcture comprises upper mounted plate and bottom plate, and said upper mounted plate and said bottom plate down are disc structure, and its center of circle is passed and is fixed in the said rotating shaft; Its diameter is less than the diameter of said upper backup pad; Said upper mounted plate is provided with a plurality of locating slots, and it is on the circumference in the center of circle that said a plurality of locating slots are evenly distributed on said rotating shaft, and said bottom plate also is provided with a plurality of said locating slots with identical distribution mode; The upper end of said set of permanent magnets is positioned at the locating slot of said upper mounted plate, and the lower end of said set of permanent magnets is positioned at the locating slot of said bottom plate.
Further, said fixed sturcture also comprises at least one middle part fixed head that is positioned at the middle part of said set of permanent magnets, and said middle part fixed head is provided with the pilot hole that a plurality of and said locating slot is complementary, and said middle part fixed head is passed at the middle part of said set of permanent magnets.
Said locating slot away from the distance at the edge of side of said rotating shaft and said fixed head less than 5mm.
Further, be provided with rocking handle on the said rotating shaft.
Particularly, said fixed head all is fixed in the said rotating shaft through key or nut.
Particularly, said fixed sturcture, said upper and lower back up pad and said base are processed by resin or epoxy plate.
The beneficial effect that the technical scheme that the embodiment of the invention provides is brought is: the fixed sturcture through adopting non-magnetic conduction type material to process substitutes iron core; Permanent magnet fixed sturcture as rotor; The mode that adopts back up pad and base to cooperate is located; Realized after the stator winding installation colligation, can arrange the phase sequence test, can more early find process error.The apparatus structure of detection motor stator phase sequence provided by the invention is simple, cost is low, light, simple to operate, influenced by magnetic force little, for convenience detach, and since stator carry out phase sequence when detecting not shaping advance lacquer, the adjustment of can doing over again, reduction scrappage.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention; The accompanying drawing of required use is done to introduce simply in will describing embodiment below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the device of the detection motor stator phase sequence that provides in the embodiment of the invention structural representation behind the stator of packing into;
Fig. 2 is the structural representation of the device rotor of the detection motor stator phase sequence that provides in the embodiment of the invention;
Fig. 3 is the structural representation of another angle of device rotor of the detection motor stator phase sequence that provides in the embodiment of the invention;
Fig. 4 is the A-A sectional view of Fig. 3;
Fig. 5 is pack into the outside drawing of stator of the device rotor of the detection motor stator phase sequence that provides in the embodiment of the invention;
Fig. 6 is the A-A sectional view of Fig. 5.
Wherein:
1, oscillograph, 2, rotor, 3, stator to be measured, 4, three phase terminals, 5, signal lead; 6, permanent magnet, 7, fixed sturcture, 8, rotating shaft, 9, bearing, 10, lower supporting plate; 11, base, 12, the line bag of non-leading-out terminal, 13, upper backup pad, 14, upper mounted plate; 15, bottom plate, 16, locating slot, 17, the middle part fixed head, 18, rocking handle.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that embodiment of the present invention is done to describe in detail further below.
Embodiment
Referring to Fig. 1; The embodiment of the invention provides a kind of device that detects the motor stator phase sequence; Said device comprises oscillograph 1 and rotor 2, and oscillograph 1 is connected with three phase terminals 4 (being A, B, C three phase terminals) of stator 1 to be measured through signal lead 5, and rotor 2 is complementary with stator 3 to be measured.
Referring to Fig. 2, rotor 2 comprises set of permanent magnets, fixed sturcture 7, rotating shaft 8, lower supporting plate 10 and base 11.Said set of permanent magnets is made up of a plurality of permanent magnets 6, and the number of poles of permanent magnet 6 is identical with motor pole number to be detected, and said set of permanent magnets is fixed on the fixed sturcture 7, and rotor 8 passes the central shaft of fixed sturcture 7, and can drive fixed sturcture 7 rotations.The employed fixed sturcture 7 of the embodiment of the invention can adopt the fixed sturcture of existing fixed permanent magnet 6, but the material selection non-magnet material of fixed sturcture 7.Referring to Fig. 3 and Fig. 6; Lower supporting plate 10 is a disc structure, and its diameter is slightly less than the diameter of stator 3 iron cores to be measured, and back up pad 10 is inserted in the stator 3 to be measured; Can guarantee that again gap between the two is less; Thereby make lower supporting plate 10 be difficult for producing relative motion with stator 3 to be measured, referring to Fig. 4, the center of circle of lower supporting plate 10 is passed the bottom of rotating shaft 8 and is connected with rotating shaft 8 through bearing 9; Can guarantee that lower supporting plate 10 and rotating shaft 8 do not have relative displacement vertically, both are along the circumferential direction relatively rotated.Base 11 is positioned at the below of lower supporting plate 10 and is connected with lower supporting plate 10; Base 11 is a circular ring in the embodiment of the invention; Its center of circle overlaps with rotating shaft 8, and its diameter is less than the diameter of upper backup pad 10, and its height is highly identical with the line bag 12 of stator 1 non-leading-out terminal to be measured.In inventive embodiments; The effect of base 11 is to be rotor 2 axial location; Base 11 also can adopt other structures in other embodiments, and this structure is as long as can satisfy when rotor 2 is packed stator 3 to be measured into, and the iron core position that lower supporting plate 10 is positioned at stator 3 to be measured gets final product.Lower supporting plate 10 and base 11 are also processed by non-magnet material.
The device of the detection motor stator phase sequence that the use embodiment of the invention provides can be arranged the phase sequence test after the stator wiring is accomplished, concrete method of testing is following:
At first; Referring to Fig. 5 and Fig. 6; The rotor that the embodiment of the invention is provided is packed in the stator to be measured, and this moment is because base is identical with the line bag height of the non-leading-out terminal of stator to be measured, and lower supporting plate above the base and the fixed sturcture that is fixed with set of permanent magnets are positioned at the iron core of stator to be measured;
Because fixed sturcture, lower supporting plate and the base of rotor are processed by non-magnet material; Compare with the iron core fixing structure of existing rotor, have characteristics in light weight and that absorption affinity is very little, thereby make rotor be easy to put into stator to be measured; Operate lightly, can reduce workman's operational load effectively.
Then, manually by the direction rotating shaft of regulation, rotating shaft drives the fixed sturcture that is fixed with set of permanent magnets and rotates together, and set of permanent magnets produces rotating magnetic field, and rotating magnetic field with A, B, C three-phase the magnetic field reaction takes place successively;
Because lower supporting plate and rotating shaft can relatively rotate, lower supporting plate was motionless when rotating shaft was rotated, and simultaneously because the gap between lower supporting plate and the stator to be measured is very little, made rotor ability stable rotation.
At last, observe U through oscillograph
Ab, U
BcAnd U
CaThe phase order relation, if find identically with the design phase sequence, stator then to be measured is qualified, can then carry out next process, if find with to design phase sequence different, then can untie the stator wiring and reexamine and adjust A, B, C phase sequence.
The device of the detection motor stator phase sequence that the use embodiment of the invention provides; Can in the stator production run, carry out the phase sequence inspection to it; Can more early find process error; Avoided after the assembling of whole motor is accomplished that just stator is carried out the motor rejection rate that the phase sequence inspection causes and increased the problem that production cost increases.
The apparatus structure of detection motor stator phase sequence provided by the invention is simple, cost is low, light, simple to operate, influenced by magnetic force little, for convenience detach, and since stator carry out phase sequence when detecting not shaping advance lacquer, the adjustment of can doing over again, reduction scrappage.
Referring to Fig. 2-4 in order better to realize above-mentioned purpose; The rotor 2 that the embodiment of the invention provides also comprises the upper backup pad 13 that is positioned at fixed sturcture 7 tops; Upper backup pad 13 is identical with lower supporting plate 10 sizes and material, and the top that rotating shaft 8 is passed in the center of circle of upper backup pad 13 is connected with rotating shaft 8 through bearing 9.
Through upper backup pad is set, the effect of centralized positioning is played in the relative displacement of common restrict rotor of upper backup pad and lower supporting plate and stator better during rotor rotation.
Through calculating repeatedly test; The diameter of upper backup pad 13 and lower supporting plate 10 is during than the little 1-2mm of diameter of stator 3 iron cores to be measured; Can better realize to guarantee that back up pad 10 can insert in the stator 3 to be measured, can guarantee that again lower supporting plate 10 is difficult for producing the purpose of relative motions with stators 3 to be measured.
In order better to realize the foregoing invention purpose; Said in embodiments of the present invention set of permanent magnets is made up of a plurality of measure-alike strip-shaped permanent-magnet bodies 6; Permanent magnet 6 is successively set on the fixed sturcture according to the mode that N, the S utmost point replace, and the number of poles of the set of permanent magnets that permanent magnet 6 is formed is identical with the number of poles of treating measured motor, in embodiments of the present invention; The width of permanent magnet 6 and thickness can be selected as required, generally according to 6 designs of the permanent magnet of treating measured motor.
Referring to Fig. 2-4, fixed sturcture 7 comprises upper mounted plate 14 and bottom plate 15 in the embodiment of the invention.As shown in Figure 4; Upper mounted plate 14 and bottom plate 15 are disc structure; The center of circle of upper mounted plate 14 and bottom plate 15 is all passed and is fixed in the rotating shaft 8, because the rotor that uses 2 and stator 3 couplings to be measured in the embodiment of the invention, so the equal diameters of upper mounted plate 14 and bottom plate 15 and all less than the diameter of upper backup pad 13; Confirm its diameter according to stator 3 to be measured, the distance between upper mounted plate 14 and the bottom plate 15 is also confirmed according to stator 3 to be measured.Referring to Fig. 2 and Fig. 4; The lower surface of upper mounted plate 14 is provided with a plurality of locating slots 16, and the number of locating slot 16 and the number of the permanent magnet in the set of permanent magnets 6 are complementary, and its size is also according to the size design of permanent magnet 6; To guarantee to block permanent magnet 6; Permanent magnet 6 is played the positioning and fixing effect, and it is on the circumference in the center of circle that a plurality of locating slots 16 are evenly distributed on rotating shaft 8, to guarantee to be evenly distributed on after a plurality of permanent magnets 6 are installed on the locating slot 16 around the rotating shaft 8; The upper surface of bottom plate 15 also is provided with a plurality of locating slots 16 with identical distribution mode; And be complementary with locating slot 16 on the upper mounted plate 14, the upper end of forming the permanent magnet 6 of said set of permanent magnets all is positioned at the locating slot 16 of upper mounted plate 14, and the lower end all is positioned at the locating slot 16 of bottom plate 15.
It is rotor core that the fixed sturcture that the embodiment of the invention provides substitutes traditional permanent magnet fixed sturcture through the fixed head of processing with non-magnet material; Further alleviated the weight of rotor and reduced it when inserting stator 3 to be measured and absorption affinity that stator to be measured 3 produces; When carrying out the detection of stator phase sequence, operate lighter.
For fear of only by upper and lower two fixed head fixed permanent magnets 6; The permanent magnet 6 that when rotating shaft 8 rotating speeds are too high, possibly cause breaks away from the problem of locating slot 16; The fixed sturcture 7 that the embodiment of the invention provides also comprises at least one middle part fixed head 17 that is positioned at the middle part of said set of permanent magnets; Structure and upper mounted plate 14, the bottom plate 15 of middle part fixed head 17 are identical; Unique different be that middle part fixed head 17 is not provided with locating slot 16 but is provided with a plurality of pilot holes that are complementary with locating slot 16 (can referring to Fig. 2); The upper end of permanent magnet 6 is positioned at the locating slot 16 of upper mounted plate 14, and the pilot hole of middle part fixed head 17 is passed at the middle part, and the lower end is positioned at the locating slot 16 of bottom plate 15.The piece number of middle part fixed head 17 can be selected as required.
The upper mounted plate 14 that the embodiment of the invention provides; Its locating slot 16 away from the distance at the edge of side of rotating shaft 8 and upper mounted plate 14 less than 5mm; Locating slot 16 on the bottom plate 15 is complementary with locating slot 16 on the upper mounted plate 14, the surface of promptly inserting the permanent magnet 6 in the locating slot 16 to the distance at the edge of fixed head less than 5mm.The low excessively phenomenon of waveforms amplitude when having avoided the excessive test that possibly cause of distance.
Rotating shaft 8 for ease, and rotating shaft 8 upper ends are provided with the rocking handle 18 that is fit to people's grasped.
Upper mounted plate 14 in the embodiment of the invention, bottom plate 15 and middle part fixed head 17 all are fixed in the rotating shaft 8 through key or nut.Key or nut structure are simple, and be easy to operate.
The fixed sturcture 7 that the embodiment of the invention provides, upper mounted plate 14, bottom plate 15, middle part fixed head 17 and base 11 are processed by resin or epoxy plate.Resin or epoxy plate are more common non-magnet material, and their lighter weight, cheap, thereby the absorption affinity of the quality that can alleviate rotor 2 when reducing it and inserting stator 3 to be measured have reduced the detection cost again.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. device that detects the motor stator phase sequence; Said device comprises oscillograph that is connected with three phase terminals of stator to be measured and the rotor that is complementary with said stator to be measured; Said rotor comprises the fixed sturcture of set of permanent magnets, said set of permanent magnets and passes the central shaft of said fixed sturcture and drive the rotating shaft of its rotation; It is characterized in that; Said rotor also comprises lower supporting plate and the base that is located at said fixed sturcture below, and said lower supporting plate is a disc structure, and the diameter of said disk is less than the diameter of stator core to be measured; And the center of circle is passed the bottom of said rotating shaft and is connected with said rotating shaft through bearing; Said base is positioned at the below of said lower supporting plate and is connected with said lower supporting plate, and its height is identical with the line bag height of the non-leading-out terminal of stator to be measured, and said fixed sturcture, said lower supporting plate and said base are processed by non-magnet material.
2. the device of detection motor stator phase sequence according to claim 1; It is characterized in that; Said rotor also comprises the upper backup pad that is positioned at said fixed sturcture top; Said upper backup pad is identical with said lower supporting plate size and material, and the top that said rotating shaft is passed in the center of circle of said upper backup pad is connected with said rotating shaft through said bearing.
3. the device of detection motor stator phase sequence according to claim 2 is characterized in that, the diameter of said upper backup pad and said lower supporting plate is than the little 1-2mm of diameter of said stator core to be measured.
4. the device of detection motor stator phase sequence according to claim 1; It is characterized in that; Said set of permanent magnets is made up of a plurality of measure-alike strip-shaped permanent-magnet bodies; The mode that said permanent magnet replaces by N, the S utmost point is successively set on the said fixed sturcture, and the number of poles of said set of permanent magnets is identical with the number of poles of treating measured motor.
5. the device of detection motor stator phase sequence according to claim 1; It is characterized in that; Said fixed sturcture comprises upper mounted plate and bottom plate, and said upper mounted plate and said bottom plate are disc structure, and its center of circle is passed and is fixed in the said rotating shaft; Its diameter is less than the diameter of said upper backup pad; Said upper mounted plate is provided with a plurality of locating slots, and it is on the circumference in the center of circle that said a plurality of locating slots are evenly distributed on said rotating shaft, and said bottom plate also is provided with a plurality of said locating slots with identical distribution mode; The upper end of said set of permanent magnets is positioned at the locating slot of said upper mounted plate, and the lower end of said set of permanent magnets is positioned at the locating slot of said bottom plate.
6. the device of detection motor stator phase sequence according to claim 5; It is characterized in that; Said fixed sturcture also comprises at least one middle part fixed head that is positioned at the middle part of said set of permanent magnets; Said middle part fixed head is provided with the pilot hole that a plurality of and said locating slot is complementary, and said middle part fixed head is passed at the middle part of said set of permanent magnets.
7. the device of detection motor stator phase sequence according to claim 5 is characterized in that, said locating slot away from the distance at the edge of side of said rotating shaft and said fixed head less than 5mm.
8. the device of detection motor stator phase sequence according to claim 1 is characterized in that, said rotating shaft upper end is provided with rocking handle.
9. the device of detection motor stator phase sequence according to claim 6 is characterized in that said fixed head all is fixed in the said rotating shaft through key or nut.
10. the device of detection motor stator phase sequence according to claim 2 is characterized in that, said fixed sturcture, said upper and lower back up pad and said base are processed by resin or epoxy plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110246706 CN102331531B (en) | 2011-08-25 | 2011-08-25 | Device for detecting phase sequence of motor stator |
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| CN 201110246706 CN102331531B (en) | 2011-08-25 | 2011-08-25 | Device for detecting phase sequence of motor stator |
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| CN102331531A true CN102331531A (en) | 2012-01-25 |
| CN102331531B CN102331531B (en) | 2013-06-12 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777109A (en) * | 2014-01-20 | 2014-05-07 | 广东美芝精密制造有限公司 | Stator outgoing line wiring detecting device and method for three-phase permanent-magnet motor |
| CN104049153A (en) * | 2014-06-23 | 2014-09-17 | 昆山富通电子有限公司 | Three-phase motor body phase sequence testing device |
| CN105911422A (en) * | 2016-04-27 | 2016-08-31 | 精基科技（嘉兴）有限公司 | Three-phase AC motor stator winding coil mismatched wiring detection apparatus and the detection method |
| CN106872809A (en) * | 2017-03-28 | 2017-06-20 | 中国第汽车股份有限公司 | A kind of stator detection device for phase sequence based on voltage-frequency control method |
| WO2024055151A1 (en) * | 2022-09-13 | 2024-03-21 | 威刚科技股份有限公司 | Stator test fixture and stator detection system |
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| CN101718843A (en) * | 2009-12-09 | 2010-06-02 | 电子科技大学 | Stator winding phase sequence, corresponding relation determining method of stator winding phase sequence and coder and device |
| US20110050150A1 (en) * | 2008-01-18 | 2011-03-03 | Magnus Lindmark Lilliestrale | Electric motor |
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| CN2259632Y (en) * | 1996-11-01 | 1997-08-13 | 孙文权 | Three-phase electric machine phase sequence test instrument |
| CN101398313A (en) * | 2007-09-25 | 2009-04-01 | 奇瑞汽车股份有限公司 | Motor rotor position sensor and method for measuring position of motor rotor |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777109A (en) * | 2014-01-20 | 2014-05-07 | 广东美芝精密制造有限公司 | Stator outgoing line wiring detecting device and method for three-phase permanent-magnet motor |
| CN104049153A (en) * | 2014-06-23 | 2014-09-17 | 昆山富通电子有限公司 | Three-phase motor body phase sequence testing device |
| CN105911422A (en) * | 2016-04-27 | 2016-08-31 | 精基科技（嘉兴）有限公司 | Three-phase AC motor stator winding coil mismatched wiring detection apparatus and the detection method |
| CN106872809A (en) * | 2017-03-28 | 2017-06-20 | 中国第汽车股份有限公司 | A kind of stator detection device for phase sequence based on voltage-frequency control method |
| CN106872809B (en) * | 2017-03-28 | 2023-09-08 | 中国第一汽车股份有限公司 | Stator phase sequence detection device based on pressure frequency control method |
| WO2024055151A1 (en) * | 2022-09-13 | 2024-03-21 | 威刚科技股份有限公司 | Stator test fixture and stator detection system |
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Effective date of registration: 20150702 Address after: 241000 Yijiang, Anhui Province, Jin Hua Road, No. 226, South Road, No. Patentee after: New-energy automobile Technology Co., Ltd. of Cherry Address before: 241006 Wuhu economic and Technological Development Zone, Anhui, Changchun Road, No. 8, No. Patentee before: Saic Chery Automobile Co., Ltd. |
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Address after: 241001 No. 226 Huajin South Road, Wuhu High-tech Industrial Development Zone, Wuhu City, Anhui Province Patentee after: Chery New Energy Automobile Co.,Ltd. Address before: 241000 No. 226 Hua Jin South Road, Yijiang District, Anhui, Wuhu Patentee before: CHERY NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. |
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