CN201966776U - Permanent magnet DC brushless motor for driving air compressor - Google Patents
Permanent magnet DC brushless motor for driving air compressor Download PDFInfo
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- CN201966776U CN201966776U CN2011200018488U CN201120001848U CN201966776U CN 201966776 U CN201966776 U CN 201966776U CN 2011200018488 U CN2011200018488 U CN 2011200018488U CN 201120001848 U CN201120001848 U CN 201120001848U CN 201966776 U CN201966776 U CN 201966776U
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- permanent magnet
- radiator
- brushless motor
- air compressor
- driving
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Abstract
A permanent magnet DC brushless motor for driving an air compressor comprises three modules, namely, an electric part, a changeover part and a driving control part, wherein, a changeover housing of the changeover part is connected and fixed with both an inner side end cover and a front end housing of the electric part through connecting screws, so as to fixedly connect the changeover part and the electric part, the changeover housing of the changeover part is connected with a driving PCB (printed circuit board) of the driving control part through screws, so as to integrally connect the driving control part and the changeover part, a circular rear end cover of the driving control part is sleeved with a circular radiator through rear end cover set screws, VMOS (Vertical Metal Oxide Semiconductor) tubes welded on the driving PCB are connected with both arc-shaped radiating fins and the radiator through screws, and the driving PCB and the radiator are integrally connected. In the utility model, the electric part, the changeover part and the driving control part are connected tightly to form a three-section integrated structure which has the electric, driving and control and radiating functions, and the permanent magnet DC brushless motor is widely suitable for driving various undersized air compressors.
Description
Technical field
The utility model relates to a kind of permanent magnet DC brushless motor, is mainly used in to drive all kinds of air compressors.
Background technology
Compressor is a kind of conveying gas and improves the gas pressure fluid machinery, be the heart of refrigerating systems such as air-conditioning and refrigerator, it is from the refrigerant gas of air intake duct suction low-temp low-pressure, after treatment, discharge the refrigerant gas of HTHP to blast pipe, thereby realize kind of refrigeration cycle.For power-actuated compressor, motor is the power core of compressor, in motor when operation, drive piston operation, and the refrigerant gas of low-temp low-pressure is converted into the refrigerant gas of HTHP by compress mode, realizes the cold and hot transfer process of compressor key.Traditional compressor adopts alternating current machine as its power source more, and the alternating current machine invariablenes turning speed is constant, adopts alternating currently, does not have electronic control part.
Summary of the invention
Technical problem
Mainly there is following problem in the traditional compressor drive motors:
1, the most of alternating current machine that adopts of traditional compressor drive motors, its speed regualtion of AC motor poor performance can only can not adapt to the various application operating modes of compressor with constant speed operation.
Even if 2 alternating current machines have been equipped with frequency-variable controller, can carry out speed regulation, still there is following deficiency in the drive system that alternating current machine and frequency-variable controller are formed: the control mode complexity of one side frequency converter, cost is high, makes the AC Driving System with speed adjusting performance be difficult to popularize practical; The energy conversion efficiency of alternating current machine and frequency converter is low on the other hand, does not meet the demand of energy-saving and emission-reduction.
Even if 3 AC converter can high efficiency, cost degradation, frequency converter and alternating current machine remain two relatively independent integral body, do not possess the structure of electromechanical integration.
4, the power density of alternating current machine is low, provides the alternating current machine volume of equal-wattage to be not easy to drive air compressor much larger than the motor of other types.
Technical scheme
For solving the problems of the technologies described above, the utility model proposes a kind of air compressor driving and use permanent magnet DC brushless motor, its technical scheme is specific as follows:
Described air compressor drives uses permanent magnet DC brushless motor, comprise electronic part, switching part and three parts of drive control part, wherein electronic part comprises preceding end housing, front end housing, inboard end cap, outboard bearing, inboard bearing, Hall element position monitoring and control pcb board, Hall element, armature core, armature winding, the armature winding support frame, motor shaft, rotor permanent magnet, the connecting screw nail, the switching shell of the switching part of motor and the inboard end cap of electronic part and preceding end housing are connected and fixed by the connecting screw nail, the switching part is linked together with electronic part, drive control part comprises rear end cap, radiator, the VMOS pipe, the cambered surface fin, the driving PCB plate, the rear end cap setscrew, the rounded back end lid passes through the socket of rear end cap setscrew with circular radiator, the VMOS pipe that is welded on the driving PCB plate is connected with cambered surface fin and radiator by screw, driving PCB plate and radiator are fused, the driving PCB plate is connected by the switching shell of screw with the switching part, drive control part and switching part integral body are linked together, also comprise the single-chip microcomputer of realizing electronic part drive controlling function on the driving PCB plate, UVW three-phase drive circuit, the hall signal modulate circuit, DC power supplier and control signal modulate circuit, electronic part, switching part and three parts of drive control part are combined closely, and it is moving to form current collection, drive controlling, heat sinking function syllogic integral structure.
Described air compressor drives uses permanent magnet DC brushless motor, its Hall element position monitoring and control pcb board is an annular plate, a side of close switching part in the end housing before being installed in, three Hall elements have vertically been welded on the Hall element position monitoring and control pcb board, its positive sensitive surface is over against motor shaft, between three Hall elements according to the armature number of magnetic poles 120 ° of electrical degrees of being separated by.
Described air compressor drives uses permanent magnet DC brushless motor, its driving PCB plate is a circular slab, be placed in annular radiator inside, VMOS pipe is welded on vertically that the VMOS pipe is divided into six groups on the driving PCB plate, every group of VMOS pipe be welded on driving PCB plate circumference in connect on the orthohexagonal limit, each organizes the center symmetry of the relative driving PCB plate in position of VMOS pipe, and the capacitor bond pads is at the central single-chip microcomputer of driving PCB plate, UVW three-phase drive circuit, the hall signal modulate circuit, DC power supplier and control signal modulate circuit place in the space between pipe of VMOS on the driving PCB plate and the capacitor group.
Described air compressor drives uses permanent magnet DC brushless motor, its drive control part comprises six cambered surface fin, the cambered surface fin is that one side is outer convex globoidal, one side is the certain thickness rectangle conducting strip that has on plane, the convexity of its outer convex globoidal is consistent with the concavity of radiator inner surface, outer convex globoidal is close to the inner surface of radiator and installs, and the plane of cambered surface fin and VMOS pipe radiating surface are close to, and compress by screw between radiator, cambered surface fin and the VMOS pipe.
Described air compressor drives and uses permanent magnet DC brushless motor, and the end cap bottom has louvre thereafter.
Described air compressor drives uses permanent magnet DC brushless motor, and the inside of its switching shell comprises a radiator fan impeller, and the radiator fan impeller set is connected on motor shaft on the termination of inboard, and the rotor of forming with motor shaft and rotor permanent magnet rotates synchronously.
Described air compressor drives uses permanent magnet DC brushless motor, square terminal box that its switching shell lateral surface has been used screw fixings, terminal box is by the terminal box top cover, the terminal box base, power-line terminal, signal binding post and aviation plug are formed, power-line terminal and signal binding post are the screw type binding post, all be installed on the bottom of terminal box base, the binding post bottom is directly inserted the switching enclosure and is connected with drive control part, the terminal box base has the power line hole near the side of power-line terminal, the terminal box base has circular socket holes near the side of signal binding post, is used to connect aviation plug.
Technique effect
The air compressor that the utility model proposed drives has following beneficial effect with permanent magnet DC brushless motor:
1, the utility model proposed air compressor drives with permanent magnet DC brushless motor and comprises electronic, switching and three parts of drive controlling, be an independently integral body, electric functions, speed-regulating function and heat sinking function are rolled into one, external control signal and DC power supply can be moved, not needing additionally to add controller, is a kind of incorporate permanent magnet DC brushless motor.
2, the utility model has followed non-brush permanent-magnet DC motor control characteristic of simple; has good speed adjusting performance; can be according to using the automatic governing speed of operating mode; cut down the consumption of energy; and electronic control part added defencive functions such as overcurrent, overvoltage, overload, guaranteed motor and compressor reliability.
3, control section of the present utility model and electronic part all have very high efficient, and the overall efficiency of motor integral body reaches more than 90%, far above the efficient of AC variable-frequency speed regulation system.
4, the utility model permanent magnet DC brushless motor power density height, volume is little, is specially adapted to the drive controlling of the following household electrical appliance compressor of 2KW.
Description of drawings
Fig. 1 air compressor drives with permanent magnet DC brushless motor cascade outside drawing;
Fig. 2 air compressor drives and looks outside drawing with the permanent magnet DC brushless motor right side;
Fig. 3 air compressor drives with permanent magnet DC brushless motor exploded view 1 progressively;
Fig. 4 air compressor drives with permanent magnet DC brushless motor exploded view 2 progressively;
Fig. 5 air compressor drives with permanent magnet DC brushless motor exploded view 3 progressively;
Fig. 6 air compressor drives with permanent magnet DC brushless motor exploded view 4 progressively;
Fig. 7 air compressor drives with permanent magnet DC brushless motor exploded view 5 progressively;
Fig. 8 air compressor drives with permanent magnet DC brushless motor exploded view 6 progressively;
Fig. 9 air compressor drives with the complete exploded view of permanent magnet DC brushless motor;
Figure 10 air compressor drives with permanent magnet DC brushless motor electricity theory diagram.
Label declaration:
End housing 11 front end housings before 10
12 inboard end cap 13 outboard bearings
14 inboard bearings, 15 Hall element position monitoring and control pcb boards
16 Hall elements, 17 armature cores
18 armature winding, 19 armature winding support frames
20 motor shafts, 21 rotor permanent magnets
22 connecting screws nail
30 switching shells, 31 terminal box top covers
32 power line holes, 33 terminal box bases
34 aviation plugs, 35 power-line terminals
36 signal binding posts, 37 radiator fan impellers
50 rear end caps, 51 louvres
52 radiator 53VMOS pipe
54 cambered surface fin, 55 driving PCB plates
56 capacitor groups, 57 rear end cap setscrews
58 single-chip microcomputer 59UVW three-phase drive circuit
60 hall signal modulate circuits, 61 DC power supplier
62 control signal modulate circuits
Embodiment
Below in conjunction with description of drawings embodiment of the present utility model.
The utility model air compressor drives with permanent magnet DC brushless motor such as Fig. 1 extremely shown in Figure 10, and the utility model is made up of electronic part, switching part and three modules of drive control part.Electronic part comprises preceding end housing 10, front end housing 11, inboard end cap 12, outboard bearing 13, inboard bearing 14, Hall element position monitoring and control pcb board 15, Hall element 16, armature core 17, armature winding 18, armature winding support frame 19, motor shaft 20, rotor permanent magnet 21 and connecting screw nail 22, electronic part is mainly used in electric energy and transforms, outputting power.The switching part branch comprises switching shell 30, terminal box top cover 31, power line hole 32, terminal box base 33, aviation plug 34, power-line terminal 35, signal binding post 36, radiator fan impeller 37, the switching part is mainly used in and connects electronic part and drive control part, introduce external signal simultaneously, and play the effect of heat radiation constant temperature.Drive control part comprises rear end cap 50, louvre 51, radiator 52, VMOS pipe 53, cambered surface fin 54, driving PCB plate 55, capacitor group 56, rear end cap setscrew 57, single-chip microcomputer 58, UVW three-phase drive circuit 59, hall signal modulate circuit 60, DC power supplier 61, control signal modulate circuit 62, drive control part receives the rotor-position signal of Hall element 16, the excitation excitation is provided for electronic part.
The progressively deployed configuration of the electronic part of the utility model such as Fig. 3 are to shown in Figure 9, and preceding end housing 10, front end housing 11 and inboard end cap 12 have been formed the external frame of electronic part, and other electronic part parts are positioned at external frame.Armature core 17, armature winding 18 and armature winding support frame 19 have constituted stator jointly, armature core 17 is annular cores that a plurality of arcs " worker " font iron core is formed, every " worker " font iron core is stamped to form by polylith silicon steel thin slice, armature winding support frame 19 is spliced by two parts up and down, and the space solderless wrapped connection of armature winding 18 by armature winding support frame 19 and armature core 17 " worker " font blocking is on whole armature core 17.Outboard bearing 13, inboard bearing 14, motor shaft 20 and rotor permanent magnet 21 are formed rotor, rotor permanent magnet 21 is connected with motor shaft 20 curing, rotor permanent magnet 21 is the cylindrical permanent magnet of a multipole magnetization, outboard bearing 13 is socketed in motor shaft 20 one side towards front end housing 11, inboard bearing 14 is socketed in motor shaft 20 one side towards inboard end cap 12, and whole stator is positioned at the space of ring-shaped rotor central authorities.Hall element position monitoring and control pcb board 15 and Hall element 16 have constituted position feedback mechanism, Hall element position monitoring and control pcb board 15 is an annular plate, be installed in the preceding end housing 10, stator and rotor are near a side of switching part, three Hall elements 16 are vertically welded on the Hall element position monitoring and control pcb board 15, the top of Hall element 16 is towards stator, its positive sensitive surface is over against motor shaft, according to the armature number of magnetic poles 120 ° of electrical degrees of being separated by, feedback mechanism is mainly used in the position of determining rotor between three Hall elements 16.The inboard end cap 12 of electronic part and preceding end housing 10 are connected and fixed by the switching shell 30 of connecting screw nail 22 with the switching part, and electronic part and switching part are fixed together.
The progressively deployed configuration of the utility model switching part such as Fig. 3 are to shown in Figure 9, and the front end of switching part is connected with electronic part, and the rear end is connected with drive control part, is successive part of the present utility model.The switching part is its framework with switching shell 30, inside mainly comprises a radiator fan impeller 37, radiator fan impeller 37 is socketed in motor shaft 20 on the termination of inboard, and the rotor of forming with motor shaft 20 and rotor permanent magnet 21 rotates synchronously, is mainly used in heat radiation.Square terminal box that switching shell 30 lateral surfaces have been used screw fixings, terminal box is by terminal box top cover 31, terminal box base 33, power-line terminal 35, signal binding post 36 and aviation plug 34 are formed, power-line terminal 35 and signal binding post 36 are the screw type binding post, all be installed on the bottom of terminal box base 33, the binding post bottom is directly inserted switching shell 30 inside and is connected with drive control part, terminal box base 33 has power line hole 32 near the side of power-line terminal 35, terminal box base 33 has circular socket holes near the side of signal binding post 36, is used to connect aviation plug 34.Drive signal and power supply signal are supplied with drive control part by terminal box, and the Hall feedback signal of electronic part is supplied with drive control part by the switching part.
The progressively deployed configuration of the utility model drive control part such as Fig. 3 are to shown in Figure 9, drive control part is positioned at the afterbody of the utility model motor, driving PCB plate 55 is connected by the switching shell 30 of screw with the switching part, makes drive control part and switching part integral body be connected and fixed.Driving PCB plate 55 is a circular slab, be placed in annular radiator 52 inside, VMOS pipe 53 vertically is welded on the driving PCB plate 55, its top is towards the motor afterbody, VMOS pipe 53 is divided into six groups, every group of VMOS pipe 53 be welded on driving PCB plate 55 the outline circumference in connect on the orthohexagonal limit, each organizes the center symmetry of the relative driving PCB plate 55 in position of VMOS pipe 53, the VMOS pipe 53 that is welded on the driving PCB plate 55 is connected with cambered surface fin 54 and radiator 52 by screw, rounded back end lid 50 passes through 57 sockets of rear end cap setscrew with circular radiator 52, driving PCB plate 55 and radiator 52 are fused, six cambered surface fin 54 are that one side is outer convex globoidal, one side is the certain thickness rectangle conducting strip that has on plane, the convexity of its outer convex globoidal is consistent with the concavity of radiator 52 inner surfaces, guarantee that fin contacts with the tight of radiator 52, rounded back end is covered 50 bottoms and is had louvre 51, is used to the drive control part heat radiation.Capacitor group 56 is welded on the central authorities of driving PCB plate 55, capacitor group 56 tops are towards the motor afterbody, and single-chip microcomputer 58, UVW three-phase drive circuit 59, hall signal modulate circuit 60, DC power supplier 61 and control signal modulate circuit 62 place on the driving PCB plate 55 in the space between the VMOS pipe 53 and capacitor group 56.Drive control part is a control maincenter part of the present utility model, and the utility model motor can be realized speed governing, protection, various functions such as energy-conservation by drive control part.
Electric theory diagram of the present utility model as shown in figure 10, electric component mainly is distributed in drive control part and the electronic part, drive control part is a core with single-chip microcomputer 58, single-chip microcomputer 58 and DC power supplier 61, UVW three-phase drive circuit 59, hall signal modulate circuit 60, control signal modulate circuit 62 directly connects, single-chip microcomputer 58 obtains power supply by DC power supplier 61, read drive control signal by hall signal modulate circuit 60 and control signal modulate circuit 62, after single-chip microcomputer passes through a series of processing to the data that read, produce drive signal, order about electronic part via the VMOS pipe 53 of UVW three-phase drive circuit 59 and cascade thereof and rotate.The rotor-position signal that single-chip microcomputer 58 reads from hall signal modulate circuit 60 is produced by hall position sensor 16.
The utility model air compressor drives uses permanent magnet DC brushless motor, adopt the integral structure of original creation to replace AC speed regulating control system and alternating current machine, not only can improve the operating efficiency of compressor, and make the compressible drive system more simple and clear, structure has more globality, is particularly suitable for driving all kinds of mini air compressors.
Claims (7)
1. an air compressor drives and uses permanent magnet DC brushless motor, comprise electronic part, switching part and three parts of drive controlling, wherein electronic part comprises preceding end housing (10), front end housing (11), inboard end cap (12), outboard bearing (13), inboard bearing (14), Hall element position monitoring and control pcb board (15), Hall element (16), armature core (17), armature winding (18), armature winding support frame (19), motor shaft (20), rotor permanent magnet (21), connecting screw nail (22), it is characterized in that: the switching shell (30) of switching part is connected and fixed by connecting screw nail (22) with the inboard end cap (12) of electronic part and preceding end housing (10), the switching part is linked together with electronic part, drive control part comprises rear end cap (50), radiator (52), VMOS manages (53), cambered surface fin (54), driving PCB plate (55), rear end cap setscrew (57), rounded back end lid (50) passes through rear end cap setscrew (57) socket with circular radiator (52), the VMOS pipe (53) that is welded on the driving PCB plate (55) is connected with cambered surface fin (54) and radiator (52) by screw, driving PCB plate (55) and radiator (52) are fused, driving PCB plate (55) is connected by the switching shell (30) of screw with the switching part, drive control part and switching part integral body are linked together, (55) include the single-chip microcomputer (58) of realizing electronic part drive controlling function on the driving PCB plate, UVW three-phase drive circuit (59), hall signal modulate circuit (60), DC power supplier (61) and control signal modulate circuit (62), its electronic part, switching part and three parts of drive controlling are combined closely, and it is moving to constitute current collection, drive controlling, heat sinking function syllogic integral structure.
2. air compressor according to claim 1 drives uses permanent magnet DC brushless motor, it is characterized in that: Hall element position monitoring and control pcb board (15) is an annular plate, be installed in the preceding end housing (10) near a switching side partly, three Hall elements (16) have vertically been welded on the Hall element position monitoring and control pcb board (15), its positive sensitive surface is over against motor shaft, between three Hall elements (16) according to the armature number of magnetic poles 120 ° of electrical degrees of spacing mutually.
3. air compressor according to claim 1 drives uses permanent magnet DC brushless motor, it is characterized in that: driving PCB plate (55) is a circular slab, be placed in annular radiator (52) inside, VMOS pipe (53) vertically is welded on the driving PCB plate (55), VMOS pipe (53) is divided into six groups, every group of VMOS pipe (53) be welded on driving PCB plate (55) circumference in connect on the orthohexagonal limit, each organizes the center symmetry of the relative driving PCB plate in position (55) of VMOS pipe (53), capacitor group (56) is welded on the central authorities of driving PCB plate (55), single-chip microcomputer (58), UVW three-phase drive circuit (59), hall signal modulate circuit (60), DC power supplier (61) and control signal modulate circuit (62) place driving PCB plate (55) to go up in the space between VMOS pipe (53) and the capacitor group (56).
4. air compressor according to claim 1 drives uses permanent magnet DC brushless motor, it is characterized in that: drive control part comprises six cambered surface fin (54), cambered surface fin (54) is that one side is outer convex globoidal, one side is the certain thickness rectangle conducting strip that has on plane, the convexity of its outer convex globoidal is consistent with the concavity of radiator (52) inner surface, outer convex globoidal is close to the inner surface of radiator (52) and installs, the plane of cambered surface fin (54) and VMOS pipe (53) radiating surface are close to radiator (52), compress by screw between cambered surface fin (54) and the VMOS pipe (53).
5. air compressor according to claim 1 drives and uses permanent magnet DC brushless motor, and it is characterized in that: rear end cap (50) bottom has louvre (51).
6. air compressor according to claim 1 drives uses permanent magnet DC brushless motor, it is characterized in that: the inside of switching shell (30) comprises a radiator fan impeller (37), radiator fan impeller (37) is socketed in motor shaft (20) on the termination of inboard, and the rotor of forming with motor shaft (20) and rotor permanent magnet (21) rotates synchronously.
7. air compressor according to claim 1 drives uses permanent magnet DC brushless motor, it is characterized in that: square terminal box that switching shell (30) lateral surface has been used screw fixings, terminal box is by terminal box top cover (31), terminal box base (33), power-line terminal (35), signal binding post (36) and aviation plug (34) are formed, power-line terminal (35) and signal binding post (36) are the screw type binding post, all be installed on the bottom of terminal box base (33), the binding post bottom is directly inserted switching shell (30) inside and is connected with drive control part, terminal box base (33) has power line hole (32) near the side of power-line terminal (35), terminal box base (33) has circular socket holes near the side of signal binding post (36), connects aviation plug (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200018488U CN201966776U (en) | 2011-01-06 | 2011-01-06 | Permanent magnet DC brushless motor for driving air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200018488U CN201966776U (en) | 2011-01-06 | 2011-01-06 | Permanent magnet DC brushless motor for driving air compressor |
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| Publication Number | Publication Date |
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| CN201966776U true CN201966776U (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200018488U Expired - Fee Related CN201966776U (en) | 2011-01-06 | 2011-01-06 | Permanent magnet DC brushless motor for driving air compressor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578563A (en) * | 2015-01-29 | 2015-04-29 | 吴传涛 | Square shale shaker driving motor |
| CN105526099A (en) * | 2016-01-19 | 2016-04-27 | 王尉 | Air compressor based on Hall permanent-magnet induction motor |
| CN106208832A (en) * | 2016-09-13 | 2016-12-07 | 彭希南 | Permanent-magnet brushless DC electric machine digital governor |
| CN106224268A (en) * | 2016-09-15 | 2016-12-14 | 彭希南 | DC permanent-magnetic brushless frequency conversion axial flow fan |
-
2011
- 2011-01-06 CN CN2011200018488U patent/CN201966776U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578563A (en) * | 2015-01-29 | 2015-04-29 | 吴传涛 | Square shale shaker driving motor |
| CN105526099A (en) * | 2016-01-19 | 2016-04-27 | 王尉 | Air compressor based on Hall permanent-magnet induction motor |
| CN106208832A (en) * | 2016-09-13 | 2016-12-07 | 彭希南 | Permanent-magnet brushless DC electric machine digital governor |
| CN106208832B (en) * | 2016-09-13 | 2018-10-23 | 彭希南 | Permanent-magnet brushless DC electric machine digital governor |
| CN106224268A (en) * | 2016-09-15 | 2016-12-14 | 彭希南 | DC permanent-magnetic brushless frequency conversion axial flow fan |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUAN YUQIU Free format text: FORMER OWNER: PENG XINAN Effective date: 20130222 Free format text: FORMER OWNER: GUAN YUQIU Effective date: 20130222 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 410003 CHANGSHA, HUNAN PROVINCE TO: 410205 CHANGSHA, HUNAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130222 Address after: 410205 Hunan province Changsha City Lugu high tech Zone Industrial Park A7 building 3012 Patentee after: Guan Yuqiu Address before: 410003 Hunan province Changsha Kaifu District Sifangping teachers village 5 Building No. 402 Patentee before: Peng Xinan Patentee before: Guan Yuqiu |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hunan Tianfu Electromechanical Technology Co., Ltd. Assignor: Guan Yuqiu Contract record no.: 2013430000028 Denomination of utility model: Permanent magnet DC brushless motor for driving air compressor Granted publication date: 20110907 License type: Exclusive License Record date: 20130419 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110907 Termination date: 20190106 |
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| CF01 | Termination of patent right due to non-payment of annual fee |