CN108266406A - The radiator fan of high-effective water-proof - Google Patents
The radiator fan of high-effective water-proof Download PDFInfo
- Publication number
- CN108266406A CN108266406A CN201810144020.4A CN201810144020A CN108266406A CN 108266406 A CN108266406 A CN 108266406A CN 201810144020 A CN201810144020 A CN 201810144020A CN 108266406 A CN108266406 A CN 108266406A
- Authority
- CN
- China
- Prior art keywords
- installation cavity
- circuit board
- flabellum
- stator
- effective water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000009434 installation Methods 0.000 claims abstract description 60
- 241000883990 Flabellum Species 0.000 claims abstract description 40
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 239000003292 glue Substances 0.000 claims description 19
- 238000009413 insulation Methods 0.000 claims description 9
- 241001075561 Fioria Species 0.000 claims description 2
- 238000005260 corrosion Methods 0.000 abstract description 5
- 208000002925 dental caries Diseases 0.000 abstract description 2
- 238000004078 waterproofing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/002—Details, component parts, or accessories especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid pumps
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention discloses a kind of radiator fan of high-effective water-proof, includes fan frame, flabellum, circuit board, stator and rotor；The top surface of the fan frame is recessed with opening up flabellum installation cavity, the bottom surface jack-post of flabellum installation cavity, in the axis hole of the jack-post in be fixed with bearing, the bottom surface of fan frame is recessed with circuit board installation cavity, and the bottom surface of circuit board installation cavity offers pin mounting hole；The flabellum is set in flabellum installation cavity, and flabellum has an accommodating cavity, is fixed with shaft core in the accommodating cavity, which is plugged in bearing；Stator and circuit board are isolated from each other and are disposed in different installation cavitys by the present invention, effectively avoid in the heat transfer to circuit board of stator, so that circuit board operation is more reliable and more stable, and pass through encapsulating, so that flabellum installation cavity and circuit board installation cavity is sealed against one another separates, better sealing performance is realized, also with anti-corrosion and dust-free characteristics, conducive to product runnability and service life is promoted.
Description
Technical field
The present invention relates to radiator fan field technologies, refer in particular to a kind of radiator fan of high-effective water-proof.
Background technology
Radiator fan is widely used in solving the heat dissipation problem of various electronic equipments or component, in such as PC in
Central processor CPU, video card and power supply etc..Known fan structure mainly includes stator and rotor, in the jack-post of stator base
Axis hole in be provided with oiliness bearing, the electromagnetic coil and silicon steel sheet of stator are installed in outside jack-post, and the shaft core in rotor is plugged in
In oiliness bearing, the permanent magnet ring on rotor is coated at outside electromagnetic coil.When fan activates, by the electromagnetic coil and magnet ring
Magnetic fields drive rotor to be applied around jack-post to turn, and rotor rotation can generate air-flow using flabellum thereon, and be produced electronic building brick
The effect of raw thermal energy is blown out, reaches radiating and cooling.
However, though above-mentioned traditional fan structure has the basic function of heat dissipation, it is had been found that in actual use
There are still there are many deficiencies in self structure and performance, fail to reach best using effect and task performance, there are still
There are many parts to be improved.Particularly, stator and circuit board are placed in same installation cavity so that the heat transfer that stator generates
To circuit board, harmful effect is caused to the operation of circuit board, also, current radiator fan water resistance is bad, it will be serious
Influence the runnability and service life of fan.
Invention content
In view of this, in view of the deficiencies of the prior art, the present invention aims to provide a kind of high-effective water-proofs
Radiator fan can effectively solve the heat that existing radiator fan its stator generates and easily be transferred on circuit board and waterproof
The problem of performance is bad.
To achieve the above object, the present invention is using following technical solution：
A kind of radiator fan of high-effective water-proof, has included fan frame, flabellum, circuit board, stator and rotor；
The top surface of the fan frame is recessed with opening up flabellum installation cavity, the bottom surface jack-post of flabellum installation cavity, the axis hole of the jack-post
In in be fixed with bearing, the bottom surface of fan frame is recessed with downward opening circuit board installation cavity, and the bottom surface of circuit board installation cavity opens up
There is the pin mounting hole of connection flabellum installation cavity；
The flabellum is set in flabellum installation cavity, and flabellum has an accommodating cavity, and shaft core is fixed in the accommodating cavity, shaft core inserting
In in bearing；
The circuit board is set in circuit board installation cavity, which is arranged and is fixed on outside jack-post, and stator is located in accommodating cavity, fixed
The pin of son passes through in pin mounting hole and connection is connected with circuit board, and pin mounting hole is filled with the first marine glue and will fan
Leaf installation cavity and circuit board installation cavity is sealed against one another separates；The rotor is fixed in accommodating cavity and positioned at the periphery of stator.
As a preferred embodiment, the top side of the jack-post is recessed with card groove, and the top of the stator is convexly equipped with card
Buckle, the clamping part are fixed with card groove cooperation buckle.
As a preferred embodiment, the bottom surface of the flabellum installation cavity is convexly equipped with baffle ring, which is located at pin mounting hole
Periphery, baffle ring, which encloses, is configured to storage tank, and being filled in storage tank has aforementioned first marine glue.
As a preferred embodiment, the baffle ring is extended in accommodating cavity, the fully wrapped around firmly stator of the first marine glue.
As a preferred embodiment, formed lead channel in the fan frame, which should
Lead channels are equipped with conducting wire, and connection is connected with circuit board for the inner end of conducting wire, between the outer wall of conducting wire and the inner wall of lead channels
It is folded with plug.
As a preferred embodiment, being filled in the circuit board installation cavity and lead channels has the second marine glue, this second
Marine glue extends to plug and fully wrapped around firmly circuit board.
As a preferred embodiment, the bottom of the fan frame is provided with cover board, which covers circuit board installation cavity
Opening.
As a preferred embodiment, the cover board is fixed on by screw in fan frame, and is folded between cover board and fan frame
Sealing ring.
As a preferred embodiment, the stator, which extends, insulation sleeve, which is sheathed on outside the pin of stator, absolutely
Edge set is inserted into pin mounting hole.
As a preferred embodiment, electronic component is additionally provided in the flabellum installation cavity, which draws
Foot passes through corresponding pin mounting hole to insert conducting connection on circuit boards.
The present invention has clear advantage and advantageous effect compared with prior art, specifically, by above-mentioned technical proposal
It understands：
Stator and circuit board are isolated from each other and are disposed in different installation cavitys by the present invention, and the heat of stator is effectively avoided to pass
It is handed on circuit board, so that circuit board operation is more reliable and more stable, and passes through encapsulating so that flabellum installation cavity and circuit
Plate installation cavity is sealed against one another to be separated, and realizes better sealing performance, also with anti-corrosion and dust-free characteristics, is produced conducive to being promoted
Product runnability and service life.
More clearly to illustrate the structure feature and effect of the present invention, come below in conjunction with the accompanying drawings with specific embodiment to this hair
It is bright to be described in detail.
Description of the drawings
Fig. 1 is the structure diagram of the first preferred embodiment of the present invention；
Fig. 2 is the structure diagram of the second preferred embodiment of the present invention；
Fig. 3 is the structure diagram of the third preferred embodiment of the present invention；
Fig. 4 is the structure diagram of the 4th preferred embodiment of the present invention.
Attached drawing identifier declaration：
10th, fan frame 11, flabellum installation cavity
12nd, circuit board installation cavity 13, pin mounting hole
14th, baffle ring 15, storage tank
16th, lead channels 20, flabellum
21st, accommodating cavity 30, circuit board
40th, stator 41, pin
42nd, clamping part 43, insulation sleeve
50th, rotor 60, jack-post
61st, axis hole 62, card groove
71st, bearing 72, shaft core
73rd, conducting wire 74, plug
75th, cover board 76, screw
77th, sealing ring 81, the first marine glue
82nd, the first marine glue 90, electronic component
91st, pin 92, insulating base.
Specific embodiment
It please refers to shown in Fig. 1, that show the concrete structures of the first preferred embodiment of the present invention, include fan frame
10th, flabellum 20, circuit board 30, stator 40 and rotor 50.
The top surface of the fan frame 10 is recessed with opening up flabellum installation cavity 11, the bottom surface jack-post 60 of flabellum installation cavity 11,
Bearing 71 is fixed in the axis hole 61 of the jack-post 60, the bottom surface of fan frame 10 is recessed with downward opening circuit board installation cavity 12,
The bottom surface of circuit board installation cavity 12 offers the pin mounting hole 13 of connection flabellum installation cavity 11；In the present embodiment, fan frame 10
For plastic cement material, which is metal material, and jack-post 60 is fixed together with 10 produced by insert molding of fan frame.
The flabellum 20 is set in flabellum installation cavity 11, and flabellum 20 has an accommodating cavity 21, is fixed in the accommodating cavity 21
Shaft core 72, the shaft core 72 are plugged in bearing 71.
The circuit board 30 is set in circuit board installation cavity 12, and circuit board 30 is sheathed on the lower end of jack-post 60；This is fixed
Son 40 is arranged and is fixed on outside jack-post 60, and stator 40 is located in accommodating cavity, and the pin 41 of stator 40 is passed through in pin mounting hole 13
And be connected and connect with circuit board 30, and pin mounting hole 13 be filled with the first marine glue 81 and by flabellum installation cavity 11 and circuit board
Installation cavity 12 is sealed against one another to be separated；The rotor 50 is fixed in accommodating cavity 21 and positioned at the periphery of stator 40.
The top side of the jack-post 60 is recessed with card groove 62, and the top of the stator 40 is convexly equipped with clamping part 42, the card
Buckle 42 is fixed with the cooperation buckle of card groove 62, to realize the fixed installation of stator 40.
The bottom surface of the flabellum installation cavity 11 is convexly equipped with baffle ring 14, which is located at the periphery of pin mounting hole 13, gear
Ring 14, which encloses, is configured to storage tank 15, and being filled in storage tank 15 has aforementioned first marine glue 81.Also, the stator 40, which extends, to be had
Insulation sleeve 43, the insulation sleeve 43 are sheathed on outside the pin 41 of stator 40, and insulation sleeve 43 is inserted into pin mounting hole 13, so as to
The sealing of first marine glue 81 combines, and realizes better seal, and pin 41 is copper needle, and pin 41 is fixed with 43 produced by insert molding of insulation sleeve
Together；And electronic component 90 is additionally provided in the flabellum installation cavity 11, the pin 91 of the electronic component 90 passes through
Corresponding pin mounting hole 13, which is inserted on circuit board 30, is connected connection, also, be arranged with insulating base 92, insulating base outside pin 91
92 sockets combine in pin mounting hole 13 to be sealed with the first marine glue 81, realize better seal.
And formed lead channel 16 in the fan frame 10,16 connection circuit plate installation cavity 12 of lead channels, to carry out
Air-leakage test, the lead channels 16 are equipped with conducting wire 73, and inner end and the conducting of circuit board 30 of conducting wire 73 connect, outside conducting wire 73
Plug 74 is folded between wall and the inner wall of lead channels 16.Also, it is filled in the circuit board installation cavity 12 and lead channels 16
Completely there is the second marine glue 82, which extends to plug 74 and fully wrapped around firmly circuit board.
After tested, the product waterproofing grade of the present embodiment has preferable fire resistance characteristic, and can realize anti-up to IP55
Rotten, dust reduction capability, performance are preferable.
It please refers to shown in Fig. 2, that show the concrete structure of the second preferred embodiment of the present invention, the tools of the present embodiment
Body structure and the concrete structure of aforementioned first preferred embodiment are essentially identical, except that：
In the present embodiment, circuit board installation cavity 12 and lead channels 16 are interior there is no filling second marine glue, but pass through lid
Plate 75 seals, and specifically, the bottom of the fan frame 10 is provided with cover board 75, and the cover board 75 sealing covers circuit board installation cavity 12
Opening, also, the cover board 75 is fixed on by screw 76 in fan frame 10, and is folded with sealing ring between cover board 75 and fan frame 10
77。
After tested, the product waterproofing grade of the present embodiment has preferable fire resistance characteristic, and can realize anti-also up to IP55
Rotten, dust reduction capability, performance are preferable.
It please refers to shown in Fig. 3, that show the concrete structure of the third preferred embodiment of the present invention, the tools of the present embodiment
Body structure and the concrete structure of aforementioned first preferred embodiment are essentially identical, except that：
In the present embodiment, the baffle ring 14 is extended in accommodating cavity 21,81 fully wrapped around firmly stator 40 of the first marine glue, with right
Stator 40 carries out waterproofing protection.
After tested, the product waterproofing grade of the present embodiment has better fire resistance characteristic, and can realize more also up to IP68
Anti-corrosion well, dust reduction capability, performance is more preferably.
It please refers to shown in Fig. 4, that show the concrete structure of the 4th preferred embodiment of the present invention, the tools of the present embodiment
Body structure and the concrete structure of aforementioned second preferred embodiment are essentially identical, except that：
In the present embodiment, the baffle ring 14 is extended in accommodating cavity 21,81 fully wrapped around firmly stator 40 of the first marine glue, with right
Stator 40 carries out waterproofing protection.
After tested, the product waterproofing grade of the present embodiment has better fire resistance characteristic, and can realize more also up to IP68
Anti-corrosion well, dust reduction capability, performance is more preferably.
The design focal point of the present invention is：Stator and circuit board are isolated from each other and are disposed on different installations by the present invention
In chamber, in the heat transfer to circuit board that effectively avoids stator, so that circuit board operation is more reliable and more stable, and pass through
Encapsulating so that flabellum installation cavity and circuit board installation cavity is sealed against one another separates is realized better sealing performance, also had
Anti-corrosion and dust-free characteristics, conducive to product runnability and service life is promoted.
The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention,
Therefore any subtle modifications, equivalent variations and modifications that every technical spirit according to the present invention makees above example, still
Belong in the range of technical solution of the present invention.
Claims (10)
1. a kind of radiator fan of high-effective water-proof, it is characterised in that：Include fan frame, flabellum, circuit board, stator and rotor；
The top surface of the fan frame is recessed with opening up flabellum installation cavity, the bottom surface jack-post of flabellum installation cavity, the axis hole of the jack-post
In in be fixed with bearing, the bottom surface of fan frame is recessed with downward opening circuit board installation cavity, and the bottom surface of circuit board installation cavity opens up
There is the pin mounting hole of connection flabellum installation cavity；
The flabellum is set in flabellum installation cavity, and flabellum has an accommodating cavity, and shaft core is fixed in the accommodating cavity, shaft core inserting
In in bearing；
The circuit board is set in circuit board installation cavity, which is arranged and is fixed on outside jack-post, and stator is located in accommodating cavity, fixed
The pin of son passes through in pin mounting hole and connection is connected with circuit board, and pin mounting hole is filled with the first marine glue and will fan
Leaf installation cavity and circuit board installation cavity is sealed against one another separates；The rotor is fixed in accommodating cavity and positioned at the periphery of stator.
2. the radiator fan of high-effective water-proof according to claim 1, it is characterised in that：The top side of the jack-post is recessed
There is card groove, the top of the stator is convexly equipped with clamping part, which fixes with card groove cooperation buckle.
3. the radiator fan of high-effective water-proof according to claim 1, it is characterised in that：The bottom surface of the flabellum installation cavity is convex
Equipped with baffle ring, which is located at the periphery of pin mounting hole, and baffle ring, which encloses, is configured to storage tank, and being filled in storage tank has aforementioned first
Marine glue.
4. the radiator fan of high-effective water-proof according to claim 3, it is characterised in that：The baffle ring extends to accommodating cavity
In, the fully wrapped around firmly stator of the first marine glue.
5. the radiator fan of high-effective water-proof according to claim 1, it is characterised in that：Formed lead leads in the fan frame
Road, the lead channels connection circuit plate installation cavity, the lead channels are equipped with conducting wire, and company is connected with circuit board for the inner end of conducting wire
It connects, plug is folded between the outer wall of conducting wire and the inner wall of lead channels.
6. the radiator fan of high-effective water-proof according to claim 5, it is characterised in that：The circuit board installation cavity and lead
Being filled in channel has the second marine glue, which extends to plug and fully wrapped around firmly circuit board.
7. the radiator fan of high-effective water-proof according to claim 1, it is characterised in that：The bottom of the fan frame is provided with lid
Plate, the cover plate for sealing cover the opening of circuit board installation cavity.
8. the radiator fan of high-effective water-proof according to claim 7, it is characterised in that：The cover board is fixed on by screw
In fan frame, and sealing ring is folded between cover board and fan frame.
9. the radiator fan of high-effective water-proof according to claim 1, it is characterised in that：The stator, which extends, insulation
Set, the insulation sleeve are sheathed on outside the pin of stator, and insulation sleeve is inserted into pin mounting hole.
10. the radiator fan of high-effective water-proof according to claim 1, it is characterised in that：It is also set in the flabellum installation cavity
Electronic component is equipped with, the pin of the electronic component passes through corresponding pin mounting hole to insert conducting connection on circuit boards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144020.4A CN108266406A (en) | 2018-02-12 | 2018-02-12 | The radiator fan of high-effective water-proof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810144020.4A CN108266406A (en) | 2018-02-12 | 2018-02-12 | The radiator fan of high-effective water-proof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108266406A true CN108266406A (en) | 2018-07-10 |
Family
ID=62774035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810144020.4A Pending CN108266406A (en) | 2018-02-12 | 2018-02-12 | The radiator fan of high-effective water-proof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266406A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900536A (en) * | 2005-07-18 | 2007-01-24 | 台达电子工业股份有限公司 | Fan and its fan frame |
| CN201190677Y (en) * | 2008-04-28 | 2009-02-04 | 宝安区龙华凯美电机厂 | Waterproof type radiator fan |
| CN101815874A (en) * | 2007-09-03 | 2010-08-25 | 博泽汽车部件有限公司及两合公司,乌茨堡 | Fan-motor unit |
| CN201627751U (en) * | 2009-12-24 | 2010-11-10 | 东莞寮步新旧围永立电机厂 | Waterproof radiating fan |
| CN202301196U (en) * | 2011-10-24 | 2012-07-04 | 方立忠 | Waterproof fan structure |
| US20130039783A1 (en) * | 2010-03-15 | 2013-02-14 | Ebm-Papst St. Georgen Gmbh & Co. Kg | External rotor motor with integrated bearing housing and box for control electronics |
| CN208236759U (en) * | 2018-02-12 | 2018-12-14 | 广泰电机（吴江）有限公司 | The radiator fan of high-effective water-proof |
-
2018
- 2018-02-12 CN CN201810144020.4A patent/CN108266406A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900536A (en) * | 2005-07-18 | 2007-01-24 | 台达电子工业股份有限公司 | Fan and its fan frame |
| CN101815874A (en) * | 2007-09-03 | 2010-08-25 | 博泽汽车部件有限公司及两合公司,乌茨堡 | Fan-motor unit |
| CN201190677Y (en) * | 2008-04-28 | 2009-02-04 | 宝安区龙华凯美电机厂 | Waterproof type radiator fan |
| CN201627751U (en) * | 2009-12-24 | 2010-11-10 | 东莞寮步新旧围永立电机厂 | Waterproof radiating fan |
| US20130039783A1 (en) * | 2010-03-15 | 2013-02-14 | Ebm-Papst St. Georgen Gmbh & Co. Kg | External rotor motor with integrated bearing housing and box for control electronics |
| CN202301196U (en) * | 2011-10-24 | 2012-07-04 | 方立忠 | Waterproof fan structure |
| CN208236759U (en) * | 2018-02-12 | 2018-12-14 | 广泰电机（吴江）有限公司 | The radiator fan of high-effective water-proof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20181019 Address after: 215200 Jiangxin Road 69, Wujiang economic and Technological Development Zone, Wujiang District, Jiangsu Applicant after: GUANGTAI MOTOR (WUJIANG) Co.,Ltd. Address before: 523000 No. 28, Datang Village, Liaobu Town, Dongguan, Guangdong Applicant before: DONGGUAN PROTECHNIC ELECTRIC Co.,Ltd. |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180710 |