CN206611318U - Exempt from the permanent magnet DC motor of commutating structure - Google Patents
Exempt from the permanent magnet DC motor of commutating structure Download PDFInfo
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- CN206611318U CN206611318U CN201720431420.4U CN201720431420U CN206611318U CN 206611318 U CN206611318 U CN 206611318U CN 201720431420 U CN201720431420 U CN 201720431420U CN 206611318 U CN206611318 U CN 206611318U
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- wing plate
- coil
- fixed
- plate
- motor
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- 238000009413 insulation Methods 0.000 claims description 10
- 238000003491 array Methods 0.000 claims description 9
- 238000002955 isolation Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000005224 forefinger Anatomy 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000003813 thumb Anatomy 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 230000005662 electromechanics Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000009427 motor defect Effects 0.000 description 1
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Abstract
The utility model discloses a kind of permanent magnet DC motor for exempting from commutating structure, comprising：One rotor casing；A pair of end caps, described end cap is located at the two ends of described rotor casing respectively, and a bearing is respectively equipped with the inwall of described end cap；One motor shaft, described motor shaft runs through described bearing；Second magnet ring of the first magnet ring of one annular and an annular, the first described magnet ring and the second magnet ring are located on the inwall of described rotor casing；One stator core, described motor shaft runs through described stator core；A pair of insulating frames, described motor shaft runs through described insulating frame, and described insulating frame is located on the both sides of described stator core, described insulating frame respectively winds enamel-covered wire；Wherein, described insulating frame respectively with described stator core nested encryptions.It is cost-effective due to having lacked the reversing arrangement of complexity, simplify manufacture, time constant of electric motors also shortens, motor reaction is sensitiveer.
Description
Technical field
The utility model is related to a kind of permanent magnet DC motor, more precisely, being a kind of DC for exempting from commutating structure
Motor.
Background technology
With social further development, motor is that demand can be increasing, and wherein permanent magnet DC motor is because of it：Efficiency
It is high, power density is big, simple in construction, reliability is high, smooth speed control scope is wide etc., be widely used in various portable electronics and set
Standby, utensil, household electrical appliances, medical treatment, automobile, motorcycle, electric bicycle, battery car, ship, aviation, machinery etc., China gives birth to every year
The various permanent magnet DC motors of production reach more than billions of.
Permanent magnet DC motor has two types at this stage：There are brush permanent magnet DC motor and brushless permanent magnet DC motor, this two
Plant motor and respectively there are some defects, and the quality problems 95% of motor on reversing arrangement.Carbon brush permanent magnet DC motor
Defect：Carbon brush short life, mechanical friction noise are big, have electric spark, electromagnetic interference, pressure drop electric energy loss etc.；Reversing arrangement zero
Part is more, complex process, full-automatic can not temporarily produce, belongs to labor-intensive industry, miniature carbon brush permanent direct-current electric
Reversing arrangement accounts for the volume of motor 50%, 20% material cost, 30% production hour in machine.
The defect of brushless permanent magnet DC motor：Controller is the industry newly got up, also in the stage early stage of development, it is impossible to do
Big power controller, electronic component is more, and cost is very high, and (core electron element, matter is measured all needs import, core for chip etc.
Technology is all by state's outer control), miniature brushless permanent magnet DC motor controller accounts for more than 40% material cost, 50% or so body
Product.
Utility model content
The utility model is mainly the technical problem solved present in prior art, so as to provide a kind of commutating structure of exempting from
Permanent magnet DC motor.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
The utility model discloses a kind of permanent magnet DC motor for exempting from commutating structure, comprising：
One rotor casing；
A pair of end caps, described end cap is located at the two ends of described rotor casing respectively, on the inwall of described end cap point
She You not a bearing；
One motor shaft, described motor shaft runs through described bearing；
Second magnet ring of the first magnet ring of one annular and an annular, the first described magnet ring and the second magnet ring are located at described
On the inwall of rotor casing；
One stator core, described motor shaft runs through described stator core；
A pair of insulating frames, described motor shaft runs through described insulating frame, and described insulating frame is determined positioned at described respectively
Enamel-covered wire is wound on the both sides of sub- iron core, described insulating frame；
Wherein, described insulating frame respectively with described stator core nested encryptions.
As the utility model preferred embodiment,
Described stator core includes a cylindric stator tube, and the top of the outer wall of described stator tube is provided with some groups
The first coil fixed-wing plate array that constitutes of wing plate is fixed by first coil, the bottom of the outer wall of described stator tube is provided with some
Group fixes the second coil fixed-wing plate array that wing plate is constituted by the second coil, and described first coil fixes the end point of wing plate
Not She You a tiles first coil fixed arch plate, the end that described the second coil fixes wing plate is respectively equipped with the of a tiles
Two coil fixed arch plate；
Insulation ring seat of the described insulating frame comprising a cylindric insulating cylinder and an annular, the week of described insulation ring seat
Upwards provided with some groups of limiting bracket arrays and some groups of inductance loop seclusions being made up of inductance loop seclusion plate being made up of limiting bracket
Plate array, described limiting bracket includes the spacing strip of a strip, and the end of described spacing strip is respectively equipped with an arc
The spacing arc bar of shape, described inductance loop seclusion plate includes an isolation wing plate, and the end of described isolation wing plate is respectively equipped with an arc
A fork bar notch, described fork bar groove are respectively constituted between the connection arc bar of shape and a pair of spacing fork bars, adjacent spacing fork bar
Mouth is fixed wing plate, the second coil fixation wing plate with described first coil and is engaged respectively.
It is described comprising a rotor casing the invention also discloses a kind of permanent magnet DC motor for exempting from commutating structure
The two ends of rotor casing are respectively equipped with an end cap, are respectively equipped with the inwall of described end cap between a bearing, described bearing
Provided with a motor shaft, the inwall of described rotor casing is provided with the first magnet ring of an annular and the second magnet ring of an annular, institute
The motor shaft stated is provided with a stator core and a pair of insulating frames, and described insulating frame is located at the both sides of described stator core,
Enamel-covered wire is wound on described insulating frame；
Described stator core includes a cylindric stator tube, the top of the outer wall of described stator tube provided with two groups by
First coil fixes the first coil fixed-wing plate array of wing plate composition, the bottom of the outer wall of described stator tube provided with two groups by
Second coil fixes the second coil fixed-wing plate array of wing plate composition, and the end that described first coil fixes wing plate is set respectively
There is the first coil fixed arch plate of a tiles, the end of described the second coil fixation wing plate is respectively equipped with the second line of a tiles
Enclose fixed arch plate, the setting direction and the second described coil fixed-wing plate array phase of described first coil fixed-wing plate array
It is mutually vertical；
Insulation ring seat of the described insulating frame comprising a cylindric insulating cylinder and an annular, the week of described insulation ring seat
Upwards provided with two groups of limiting bracket arrays being made up of limiting bracket and two groups of inductance loop seclusion plate battle arrays being made up of inductance loop seclusion plate
Row, the setting direction of described limiting bracket array is mutually perpendicular to described inductance loop seclusion plate array, described limiting bracket
Spacing strip comprising a strip, the end of described spacing strip is respectively equipped with the spacing arc bar of an arc, described line
Enclose division board and include an isolation wing plate, the end of described isolation wing plate is respectively equipped with the connection arc bar of an arc and a pair are isolated
Pitch bar, respectively constitute a fork bar notch between adjacent spacing fork bar, described fork bar notch respectively with described first coil
Fixed wing plate, the second coil are fixed wing plate and are engaged.
The permanent magnet DC motor of the present utility model for exempting from commutating structure has advantages below：Due to having lacked the commutation dress of complexity
Put, it is cost-effective, simplify manufacture.Without electric commutation part, motor reliability qualitative leap is improved.There is no commutation process just
There is no alternating magnetic field generation, just without iron core vortex loss, electromagnetic interference, time constant of electric motors also shortens, and motor reaction is cleverer
It is quick.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the accompanying drawing used required in description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the dimensional structure diagram of the permanent magnet DC motor of the present utility model for exempting from commutating structure；
Fig. 2 is the dimensional structure diagram of the permanent magnet DC motor for exempting from commutating structure in Fig. 1, is now regarded for another
Angle；
Sectional views of the Fig. 3 for the permanent magnet DC motor for exempting from commutating structure in Fig. 2 along line A-A；
Fig. 4 be Fig. 1 in the permanent magnet DC motor for exempting from commutating structure stereochemical structure decomposing schematic representation；
Fig. 5 be Fig. 4 in permanent magnet DC motor further stereochemical structure decomposing schematic representation；
Fig. 6 be Fig. 5 in permanent magnet DC motor further stereochemical structure decomposing schematic representation；
Fig. 7 be Fig. 5 in permanent magnet DC motor rotor dimensional structure diagram；
Fig. 8 be Fig. 5 in permanent magnet DC motor insulating frame dimensional structure diagram；
Fig. 9 be Fig. 8 in insulating frame B regions details enlarged diagram；
Figure 10 be Fig. 8 in insulating frame C regions details enlarged diagram；
Figure 11 is the schematic diagram of the permanent magnet DC motor of the present utility model for exempting from commutating structure；
Figure 12 is electric current/ampere force direction schematic diagram of the permanent magnet DC motor of the present utility model for exempting from commutating structure；
Figure 13 is the dimensional structure diagram of the rotor of the permanent magnet DC motor of the present utility model for exempting from commutating structure, now
For the two poles of the earth；
Figure 14 is the dimensional structure diagram of the insulating frame of the permanent magnet DC motor of the present utility model for exempting from commutating structure, this
When the insulating frame corresponding diagram 13 in rotor；
Figure 15 be Figure 13 in the permanent magnet DC motor for exempting from commutating structure armature winding figure；
Figure 16 is the ampere force direction schematic diagram of the permanent magnet DC motor for exempting from commutating structure in Figure 13, now N poles permanent magnetism
Body is by Ampere force reaction force；
Figure 17 is the ampere force direction schematic diagram of the permanent magnet DC motor for exempting from commutating structure in Figure 13, now S poles permanent magnetism
Body is by Ampere force reaction force；
Figure 18 is the magnetic circuit schematic diagram of the permanent magnet DC motor of the present utility model for exempting from commutating structure.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make protection domain of the present utility model apparent clear and definite
Define.
As shown in Figures 1 to 10, the permanent magnet DC motor 1 for exempting from commutating structure includes a rotor casing 2, the rotor casing
2 two ends, which are respectively equipped with an end cap 3, the inwall of the end cap 3, is respectively equipped with a bearing 5, and a motor shaft is provided between the bearing 5
4, the second magnet ring 7 of first magnet ring 6 and an annular of the inwall provided with an annular of the rotor casing 2, the motor shaft 4 is provided with
One stator core 8 and a pair of insulating frames 9, the insulating frame 9 are located at the both sides of the stator core 8, and enamel-covered wire 10 is wrapped in insulating frame 9
On.The rotor casing 2, the first magnet ring 6, the second magnet ring 7, end cap 3 and the outer ring of bearing 5 fix integral and around the energy of motor shaft 4
Freely rotate.The stator core 8, insulating frame 9, enamel-covered wire 10, motor shaft 4, the inner ring of bearing 5 fix integral, fixed.
The stator core 8 includes a cylindric stator tube 80, and the top of the outer wall of the stator tube 80 is provided with two groups by the
One coil fixes the first coil fixed-wing plate array that wing plate 81 is constituted, and the bottom of the outer wall of the stator tube 80 is provided with two groups by the
Two coil fixes the second coil fixed-wing plate array that wing plate 83 is constituted, and the end that the first coil fixes wing plate 81 is respectively equipped with
The first coil fixed arch plate 82 of one tiles, the end of second coil fixation wing plate 83 is respectively equipped with the second coil of a tiles
Fixed arch plate 84, the setting direction of the first coil fixed-wing plate array is mutually perpendicular to the second coil fixed-wing plate array.
The insulating frame 9 includes the insulation ring seat 91 of a cylindric annular of insulating cylinder 90 and one, the week of the insulation ring seat 91
Upwards provided with two groups of limiting bracket arrays and two groups of inductance loop seclusions being made up of inductance loop seclusion plate 93 being made up of limiting bracket 92
Plate array, the setting direction of the limiting bracket array is mutually perpendicular to the inductance loop seclusion plate array, and the limiting bracket 92 includes one
The spacing strip 921 of strip, the end of the spacing strip 921 is respectively equipped with the spacing arc bar 922 of an arc, the inductance loop seclusion
Plate 93 includes an isolation wing plate 931, the end of the isolation wing plate 931 be respectively equipped with an arc connection arc bar 932 and a pair every
From fork bar 933, respectively constitute a fork bar notch 934 between adjacent spacing fork bar 933, the fork article notch 934 respectively with this
One coil is fixed wing plate 81, the second coil fixation wing plate 83 and is engaged.
The permanent magnet DC motor operation principle is described below：According to left hand rule：Electrical conductor is in magnetic field by ampere
The effect of power, stretches left hand, and thumb is vertical with forefinger, allows the magnetic line of force to pass perpendicularly through the centre of the palm, and forefinger points to sense of current, thumb
Sensing be Impact direction, when change electric current reversely, stress reversely, when change polarity of the magnetic field when, stress reversely, this power it is big
Small and magnitude of field intensity, size of current is directly proportional.
As shown in figure 11, in enamel-covered wire 10 BC/DE sections be in respectively under N/S pole fields, galvanization is by Ampere force in H
Heart axle rotates, and when the anglec of rotation is more than 90 °, is just in respectively under S/N pole fields, and polarity of the magnetic field becomes reverse, then suffered
Ampere force also becomes reverse, causes to become the rotation of enamel-covered wire opposite direction.Now increase changes electric current reversing device, makes suffered Ampere force
Also reversely, final suffered Ampere force does circumference rotation in one direction all the time.Change the process of the sense of current in electromechanics trade
Referred to as commutate, N/S permanent magnets are in same plane in the axial direction, then there must be N/S magnetic poles on circumference.
As shown in figure 12, magnetic pole is biased side by side in the axial direction, and wherein BC/DE wires are under N/S pole fields respectively, is powered
Stream is rotated by Ampere force around H central shafts, when the anglec of rotation is more than 90 °, then rotates BC/DE wires and be not in S/N poles
Under magnetic field, it is under no magnetic field state, now circumferencial direction extension N/S pole fields, then BC/DE wires are always in N/S magnetic fields
Under, suffered Ampere force is consistent with original position direction, and the extension of N/S pole fields is caused one week, and suffered Ampere force is also one
Circumferential direction is rotated, and commutation is not required in this process.The stator core 8, enamel-covered wire 10 are fixed, then the first magnet ring 6, the second magnet ring 7
Opposite direction rotates under the reaction force of Ampere force, externally produces torsional moment.
It should be noted that Fig. 1 has quadrupole to the motor shown in Figure 12, certainly, the number of poles of motor can be according to need
Freely to change.
As shown in Figure 13 and Figure 14, it is another specific implementation of the permanent magnet DC motor of the present utility model for exempting from commutating structure
Mode, now, motor are bipolar machine.
As shown in figure 16, stator core 8 is diamond-shaped cross-section structure, plays and draws magnetic action, the first magnet ring 6 and the second magnet ring 7
Magnetic pole strength section diamondwise, it is necessary to which rhombus stator core 8 draws magnetic, could constitute the magnetic flux path of two magnet rings.
This is exempted from commutation permanent magnet DC motor and possesses permanent magnet DC motor essential advantage some extra advantages simultaneously：Due to few
Complicated reversing arrangement, it is cost-effective, simplify manufacture.Without electric commutation part, motor reliability qualitative leap is improved.Not yet
There is commutation process just to be produced without alternating magnetic field, just without iron core vortex loss, electromagnetic interference, time constant of electric motors also shortens,
Motor reaction is sensitiveer.
In addition, it is necessary to which wing plate 81 is fixed in explanation, the top of the outer wall of the stator tube 80 provided with two groups by first coil
The first coil fixed-wing plate array of composition, it is clear that can also set multigroup, such as 4 groups, 8 groups etc., then corresponding second line
The quantity of corresponding structure is consequently increased on the fixed wing plate 83 of circle and insulating frame 9.
This is not limited to, any change or replacement expected without creative work should all be covered in the utility model
Protection domain within.Therefore, protection domain of the present utility model should be determined by the scope of protection defined in the claims.
Claims (3)
1. a kind of permanent magnet DC motor (1) for exempting from commutating structure, comprising：
One rotor casing (2)；
A pair of end caps (3), described end cap (3) is located at the two ends of described rotor casing (2) respectively, described end cap (3)
A bearing (5) is respectively equipped with inwall；
One motor shaft (4), described motor shaft (4) runs through described bearing (5)；
The second magnet ring (7) of the first magnet ring (6) of one annular and an annular, described the first magnet ring (6) and the second magnet ring (7) position
In on the inwall of described rotor casing (2)；
One stator core (8), described motor shaft (4) runs through described stator core (8)；
A pair of insulating frames (9), described motor shaft (4) runs through described insulating frame (9), and described insulating frame (9) is located at respectively
Enamel-covered wire (10) is wound on the both sides of described stator core (8), described insulating frame (9)；
Wherein, described insulating frame (9) respectively with described stator core (8) nested encryptions.
2. the permanent magnet DC motor (1) according to claim 1 for exempting from commutating structure, it is characterised in that
Described stator core (8) includes a cylindric stator tube (80), and the top of the outer wall of described stator tube (80) is set
Wing plate (81) first coil fixed-wing plate arrays for constitute are fixed by first coil by some groups, described stator tube (80) outside
The second coil fixed-wing plate array that wing plate (83) is constituted, described first are fixed in the bottom of wall provided with some groups by the second coil
The end of coil fixation wing plate (81) is respectively equipped with the first coil fixed arch plate (82) of a tiles, and the second described coil is fixed
The end of wing plate (83) is respectively equipped with the second coil fixed arch plate (84) of a tiles；
Insulation ring seat (91) of the described insulating frame (9) comprising a cylindric insulating cylinder (90) and an annular, described insulation
The circumferential of ring seat (91) is provided with some groups of limiting bracket arrays and some groups being made up of limiting bracket (92) by inductance loop seclusion
The inductance loop seclusion plate array of plate (93) composition, described limiting bracket (92) includes the spacing strip (921) of a strip, described
The end of spacing strip (921) be respectively equipped with the spacing arc bar (922) of an arc, described inductance loop seclusion plate (93) includes one
Isolate wing plate (931), the end of described isolation wing plate (931) be respectively equipped with an arc connection arc bar (932) and a pair every
From fork bar (933), a fork bar notch (934), described fork bar notch are respectively constituted between adjacent spacing fork bar (933)
(934) wing plate (81), the second coil fixation wing plate (83) is fixed with described first coil respectively to be engaged.
3. a kind of permanent magnet DC motor (1) for exempting from commutating structure, comprising a rotor casing (2), the two of described rotor casing (2)
End is respectively equipped with an end cap (3), is respectively equipped with the inwall of described end cap (3) between a bearing (5), described bearing (5)
Provided with a motor shaft (4), first magnet ring (6) and one of the inwall provided with an annular of described rotor casing (2) it is annular the
Two magnet rings (7), described motor shaft (4) is provided with a stator core (8) and a pair of insulating frames (9), described insulating frame (9) position
In winding enamel-covered wire (10) on the both sides of described stator core (8), described insulating frame (9)；
Described stator core (8) includes a cylindric stator tube (80), and the top of the outer wall of described stator tube (80) is set
Wing plate (81) first coil fixed-wing plate arrays for constituting are fixed by first coil by two groups, the outer wall of described stator tube (80)
Bottom wing plate (83) second coil fixed-wing plate arrays for constituting, described first coil are fixed by the second coil provided with two groups
The end of fixed wing plate (81) is respectively equipped with the first coil fixed arch plate (82) of a tiles, and the second described coil fixes wing plate
(83) end is respectively equipped with the second coil fixed arch plate (84) of a tiles, and described first coil fixed-wing plate array is set
Direction is put to be mutually perpendicular to the second described coil fixed-wing plate array；
Insulation ring seat (91) of the described insulating frame (9) comprising a cylindric insulating cylinder (90) and an annular, described insulation
The circumferential of ring seat (91) is provided with two groups of limiting bracket arrays and two groups being made up of limiting bracket (92) by inductance loop seclusion plate
(93) the inductance loop seclusion plate array of composition, the setting direction and described inductance loop seclusion plate array phase of described limiting bracket array
Mutually vertical, described limiting bracket (92) includes the spacing strip (921) of a strip, the end of described spacing strip (921)
End is respectively equipped with the spacing arc bar (922) of an arc, and described inductance loop seclusion plate (93) includes an isolation wing plate (931), described
Isolation wing plate (931) end be respectively equipped with an arc connection arc bar (932) and a pair of spacing fork bars (933), it is adjacent
Respectively constitute a fork bar notch (934) between spacing fork bar (933), described fork bar notch (934) is respectively with described first
Coil is fixed wing plate (81), the second coil fixation wing plate (83) and is engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431420.4U CN206611318U (en) | 2017-04-24 | 2017-04-24 | Exempt from the permanent magnet DC motor of commutating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720431420.4U CN206611318U (en) | 2017-04-24 | 2017-04-24 | Exempt from the permanent magnet DC motor of commutating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206611318U true CN206611318U (en) | 2017-11-03 |
Family
ID=60167536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720431420.4U Withdrawn - After Issue CN206611318U (en) | 2017-04-24 | 2017-04-24 | Exempt from the permanent magnet DC motor of commutating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206611318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921273A (en) * | 2017-04-24 | 2017-07-04 | 陈彬 | Exempt from the permanent magnet DC motor of commutating structure |
| CN113346701A (en) * | 2021-06-16 | 2021-09-03 | 李应光 | Direct current motor |
-
2017
- 2017-04-24 CN CN201720431420.4U patent/CN206611318U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106921273A (en) * | 2017-04-24 | 2017-07-04 | 陈彬 | Exempt from the permanent magnet DC motor of commutating structure |
| CN113346701A (en) * | 2021-06-16 | 2021-09-03 | 李应光 | Direct current motor |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210513 Address after: 518000 b-503, Huaguoshan building, 89 Huaguoshan Road, Huaguoshan community, zhaoshang street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN CHAOWEI SYSTEM TECHNOLOGY Co.,Ltd. Address before: 529222 room 517, No.1, building 2, Jiayi garden, Mudan Road, Sijiu Town, Taishan City, Jiangmen City, Guangdong Province Patentee before: Chen Bin |
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Granted publication date: 20171103 Effective date of abandoning: 20210625 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20171103 Effective date of abandoning: 20210625 |
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| AV01 | Patent right actively abandoned |