CN103619148A - Electric vehicle controller heat dissipation device fixed by elastic sheet - Google Patents
Electric vehicle controller heat dissipation device fixed by elastic sheet Download PDFInfo
- Publication number
- CN103619148A CN103619148A CN201310545939.1A CN201310545939A CN103619148A CN 103619148 A CN103619148 A CN 103619148A CN 201310545939 A CN201310545939 A CN 201310545939A CN 103619148 A CN103619148 A CN 103619148A
- Authority
- CN
- China
- Prior art keywords
- power switch
- heat dissipation
- shell fragment
- electric vehicle
- switch pipe
- 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.)
- Granted
Links
- 230000017525 heat dissipation Effects 0.000 title abstract description 18
- 239000012634 fragment Substances 0.000 claims description 38
- 238000005452 bending Methods 0.000 claims description 11
- 241000446313 Lamella Species 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 2
- 238000003825 pressing Methods 0.000 abstract 2
- 238000013021 overheating Methods 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000003685 thermal hair damage Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of electric vehicle parts, particularly an electric vehicle controller heat dissipation device fixed by an elastic sheet. A heat dissipation seat of the heat dissipation device is provided with a long strip-shaped elastic sheet; a fixed edge of the long strip-shaped elastic sheet is fixed on the upper top surface of a hollow cavity through a connecting piece; the long strip-shaped elastic sheet is provided with a downward elastically pressing edge; the elastically pressing edge elastically abuts against power switch tubes arranged in rows at the inner side of the fixed edge, and therefore, the power switch tubes can abut against a mounting plane of the hollow cavity, and aluminum strips are not required to be mounted, and the power switch tubes are not required to be mounted one by one.; and thus, the electric vehicle controller heat dissipation device fixed by the elastic sheet is advantageous in convenient installation, simplification of production process and reduction of production cost; bolts are not required to pass through the power switch tubes, and therefore, the problem of incapability of fully satisfying a requirement of high-voltage resistant insulation resistance caused by close creepage distance between the bolts and the power switch tubes of a heat dissipation seat of a traditional heat dissipation device can be avoided; and the heat dissipation path of the heat dissipation seat is shorter than that of the traditional heat dissipation seat, such that, heat energy can be dissipated faster, and therefore, overheating damage rate of the heat dissipation seat is greatly reduced, and the service life of the heat dissipation seat can be prolonged.
Description
Technical field
The present invention relates to electric accessory motor technical field, refer in particular to the fixing controller for electric vehicle heat abstractor of a kind of shell fragment.
Background technology
China was once bicycle big country, along with the raising of people's living standard, and the promotion of clean energy resource and the enhancing of environmental consciousness, electric motor car more and more welcomed by the people, electric motor car industry, during several years of Chinese market, has obtained development at full speed.Controller for electric vehicle is as one of electric motor car four large parts, and the assurance of its quality parameter plays an important role to the development of electric motor car.
In controller for electric vehicle, power switch pipe (metal-oxide-semiconductor) has small volume, and caloric value is large, the feature that heat generation density is high, most controllers are all provided with heat abstractor and distribute with the high heat that its work is produced, and make it because crossing cause thermal damage, not affect controller until the normal operation of car load.
Heat abstractor includes a radiating seat, radiating seat arranges cavity conventionally, cavity inner bottom surface arranges PCB circuit board, one sidewall is arranged side by side some power switch pipes, described power switch pipe connection PCB circuit board, in the radiating seat of existing controller, is fixed on some power switch pipes separately on one aluminum strip by bolt, form power switch pipe in a row, and then aluminum strip is close on a madial wall of radiating seat cavity and carries out heat loss through conduction.Therefore in installation process, power switch pipe need be arranged on aluminum strip in turn, and then aluminum strip is connected and carries out heat loss through conduction with the sidewall of radiating seat.Therefore there is following drawback: bolt that need to be identical with power switch pipe quantity when 1, power switch pipe is locked on aluminum strip, and controller is managed even more according to different 6 pipes, 9 pipes, 12 pipes, 15 pipes, 18 of dividing of the quantity of power switch pipe, too much bolt is installed not only spended time, install not convenient, and the corresponding manufacturing cost that increased; 2, the bolt that power switch pipe connects will be by the thermal component of power switch pipe, and between bolt and power switch pipe, creepage distance is limited, can not meet the requirement of high pressure resistant insulation resistance; 3, heat dissipation path is power switch pipe---aluminum strip---mount pad, cause its heat dissipation path longer, thermal resistance strengthens, the heat that power switch pipe work produces can not distribute faster, when the higher operating mode of ambient temperature is comparatively severe, power switch pipe can, because of the cause thermal damage of can not dispelling the heat in time, cause car load normally not move.
Summary of the invention
The invention reside in the deficiency existing for current electric motor car heat abstractor, and provide a kind of shell fragment overcoming the above problems fixing controller for electric vehicle heat abstractor.
For achieving the above object, the present invention adopts following technical scheme:
The controller for electric vehicle heat abstractor that a kind of shell fragment is fixing, described heat abstractor comprises that one arranges the radiating seat of cavity, the top of the inner bottom surface of described cavity arranges PCB circuit board, and a sidewall is arranged side by side some power switch pipes, and described power switch pipe is by pin connection PCB circuit board; In described cavity, arrange on the sidewall of power switch pipe mounting plane is set, power switch pipe is arranged side by side on mounting plane, the rectangular shell fragment of one bending is set in the cavity of described radiating seat, rectangular shell fragment arranges a fixed edge, fixed edge is fixed on the upper end face of cavity by connector, fixed edge connects the limit of suppressing of a bending downwards, described in suppress limit and overlay on power switch pipe in a row in the inner side elasticity of nearly fixed edge.
Preferably, the periphery of described radiating seat arranges fin.
Preferably, described connector is the above bolts of two of arranged outside that are arranged on the upper end face of cavity, the be spirally connected fixed edge of rectangular shell fragment of described bolt.
Preferably, the centring ring that the end setting of described fixed edge is bent to form, arranges arc positioning groove in described upper end face, and described centring ring is plugged in arc positioning groove.
Preferably, described in suppress edge tail and some openings are set form and suppress bar, described in suppress bar and overlay on power switch pipe.
Preferably, the end that suppresses limit described in arranges overlaying of arc and bends position.
Preferably, between described mounting plane and power switch pipe, heat insulating lamella is set.
Beneficial effect of the present invention is, the controller for electric vehicle heat abstractor that shell fragment of the present invention is fixing, the rectangular shell fragment of one bending is set in the cavity of its radiating seat, rectangular shell fragment arranges a fixed edge, fixed edge is fixed on the upper end face of cavity by connector, connect close and firm, difficult drop-off, safeguard work performance; Fixed edge connects the limit of suppressing of a bending downwards, suppressing limit overlays on power switch pipe in a row in the inner side elasticity of nearly fixed edge, thereby realize on the mounting plane that power switch pipe rides over hollow cavity, realize power switch pipe and ride over the object on radiating seat, only fixed edge need be fixed on to the upper end face of cavity by connector, and without aluminum strip and installation power switching tube are in turn installed, have quick and easy for installation, simplify production technology, reduced the feature of production cost; In addition, during constant power switching tube, the limit of suppressing by rectangular shell fragment is realized power switch pipe and is overlayed on the mounting plane of radiating seat, without bolt, by power switch pipe, avoid the radiating seat of traditional heat-dissipating device because creepage distance between bolt and power switch pipe is very near, can not meet the problem generation that high pressure resistant insulation resistance requires completely; Again, power switch pipe rides over radiating seat and directly dispels the heat and save this heat dissipation path of aluminum strip than existing controller, and the radiating seat that heat dissipation path is more traditional is shorter, and heat can be distributed faster, greatly reduces its overheated spoilage, strengthens its useful life.
Accompanying drawing explanation
Fig. 1 is the structural representation of heat abstractor of the present invention
Fig. 2 is the structural representation of the rectangular shell fragment of the present invention
Embodiment
Below in conjunction with accompanying drawing 1,2, the present invention is further elaborated:
The controller for electric vehicle heat abstractor that a kind of shell fragment is fixing, described heat abstractor comprises that one arranges the radiating seat 1 of cavity 11, the periphery of radiating seat 1 arranges fin 2, can effectively dispel the heat sooner, the top of the inner bottom surface of cavity 11 arranges PCB circuit board 3, one sidewall 12 is arranged side by side some power switch pipes 4, and described power switch pipe 4 is by pin 41 connection PCB circuit boards 3; Described cavity 11 is interior to be arranged on the sidewall 12 of power switch pipe 4 mounting plane 13 is set, power switch pipe 4 is arranged side by side on mounting plane 13, the interior rectangular shell fragment 5 that a bending is set of cavity 11 of described radiating seat 1, rectangular shell fragment 5 arranges a fixed edge 51, fixed edge 51 is fixed on the upper end face 14 of cavity 11 by connector 6, fixed edge 51 connect a bending downward suppress limit 52, suppress limit 52 and overlay on power switch pipe in a row 4 in the inner side elasticity of nearly fixed edge; Rectangular shell fragment 5 materials can be carbon steel elastomeric material.
Fixing connector 6 for rectangular shell fragment 5, can adopt various ways, as rivet connects, welding etc., as a preferred embodiments, in the present embodiment, connector 6 is for being arranged on two above bolts (the present embodiment arranges three bolts) of arranged outside of the upper end face 14 of cavity 11, by the be spirally connected fixed edge 51 of rectangular shell fragment 5 of bolt, by bolt, just can easily the fixed edge of rectangular shell fragment 5 51 be fixed on to the upper end face 14 of radiating seat 1 cavity 11, certainly as those skilled in the art, can coordinating by tapping realization and bolt on fixed edge 51, also can be by be fixedly connected limit 51 and the radiating seat 1 of nut and bolt.
For better fixing rectangular shell fragment 5, at rectangular shell fragment 5, at place, bending position, circular-arc centring ring 53 is set, at the interior arc positioning groove 15 that arranges of upper end face 14, centring ring 53 is plugged in arc positioning groove 15, during installation, power switch pipe 4 is welded to PCB circuit board 3 by pin 41, after PCB circuit board 3 plugs and is in place, power switch pipe 4 general alignment are resisted against on mounting plane 13, to first centring ring 53 be inserted to arc positioning groove 15, in order to prevent the limit 52 of suppressing of rectangular shell fragment 5, in installation process, swipe with power switch pipe 4, damage power switching tube 4, the centring ring 53 that passes through of rectangular shell fragment 5 is rotated to an angle 15 li of arc positioning grooves, while avoiding inserting, contact with power switch pipe 4, after putting in place, insertion passes through again connector 6 fixed edges 51 on upper end face 14, limit 52 elasticity of suppressing that realize gradually rectangular shell fragment 5 by the bolt of connector 6 are pressed on power switch pipe 4.
In the present embodiment, some openings 54 are set form and suppress bar 55 suppressing limit 52 ends, the described bar 55 that suppresses overlays on power switch pipe 4, each suppresses bar 55 can independently produce deformation, thereby can press it is adjacent on mounting plane 13 single power switch pipe 4, even if the plastic packaging thickness between power switch pipe 4 is variant, also can suppress bar 55 and to all power switch pipes 4, be close to the pressure of radiating seat 1 mounting plane 13, avoid can not being close to mounting plane 13 because of power switch pipe 4 became unevens, affect its heat radiation, cause very likely crossing in the controller course of work generation of cause thermal damage problem.
For fear of the end stress deformation lost its bounce that suppresses limit 52, at the end that suppresses limit 52, overlaying of arc is set and bends position 56.
The present embodiment arranges heat insulating lamella 7 at mounting plane 13 and 4 of power switch pipes, realizes the insulation of 1 of power switch pipe 4 and radiating seat.
The controller for electric vehicle heat abstractor that shell fragment of the present invention is fixing, the limit 52 of suppressing by rectangular shell fragment 5 on its radiating seat 1 overlays on power switch pipe in a row 4 in the inner side elasticity of nearly fixed edge 51, thereby realize on the mounting plane 13 that power switch pipe 4 rides over hollow cavity, realize power switch pipe 4 and ride over the object on radiating seat 1, only need fixed edge 51 be fixed on by connector to the upper end face 14 of cavity 11 by connector, and without aluminum strip and installation power switching tube 4 are in turn installed, have quick and easy for installation, simplify production technology, reduced the feature of production cost, in addition, during constant power switching tube 4, the limit 52 of suppressing by rectangular shell fragment 5 is realized power switch pipe 4 and is overlayed the inwall at radiating seat 1, without bolt, by power switch pipe 4, avoid the radiating seat 1 of traditional heat-dissipating device because creepage distance between bolt and power switch pipe 4 is very near, can not meet the problem generation that high pressure resistant insulation resistance requires completely, again, power switch pipe 4 rides over radiating seat 1 and directly dispels the heat and save this heat dissipation path of aluminum strip than existing controller, and the radiating seat 1 that heat dissipation path is more traditional is shorter, and heat can be distributed faster, greatly reduces its overheated spoilage, strengthens its useful life.
The above embodiment, it is preferred embodiments of the present invention, be not to limit the scope of the present invention, the equivalence of doing according to structure, feature and principle described in the present patent application the scope of the claims therefore all changes or modifies, and all should be included in patent claim of the present invention.
Claims (7)
1. the controller for electric vehicle heat abstractor that shell fragment is fixing, described heat abstractor comprises that one arranges the radiating seat (1) of cavity (11), the top of the inner bottom surface of described cavity (11) arranges PCB circuit board (3), one sidewall (12) is arranged side by side some power switch pipes (4), and described power switch pipe (4) is by pin (41) connection PCB circuit board (3), it is characterized in that, in described cavity (11), arrange on the sidewall (12) of power switch pipe (4) mounting plane (13) is set, power switch pipe (4) is arranged side by side on mounting plane (13), the rectangular shell fragment (5) of one bending is set in the cavity (11) of described radiating seat (1), rectangular shell fragment (5) arranges a fixed edge (51), fixed edge (51) is fixed on the upper end face (14) of cavity (11) by connector (6), what fixed edge (51) connected a bending downwards suppresses limit (52), the described limit (52) of suppressing overlays on power switch pipe in a row (4) in the inner side elasticity of nearly fixed edge (51).
2. the fixing controller for electric vehicle heat abstractor of a kind of shell fragment according to claim 1, is characterized in that: the periphery of described radiating seat (1) arranges fin (2).
3. the fixing controller for electric vehicle heat abstractor of a kind of shell fragment according to claim 1, it is characterized in that: described connector (6) is for being arranged on the above bolts of two of arranged outside of the upper end face (14) of cavity (11) the be spirally connected fixed edge (51) of rectangular shell fragment (5) of described bolt.
4. the fixing controller for electric vehicle heat abstractor of a kind of shell fragment according to claim 1, it is characterized in that: described rectangular shell fragment (5) arranges circular-arc centring ring (53) at place, bending position, arc positioning groove (15) is set in described upper end face (14), and described centring ring (53) is plugged in arc positioning groove (15).
5. the fixing controller for electric vehicle heat abstractor of a kind of shell fragment according to claim 1, it is characterized in that: described in suppress limit (52) end and some openings (54) are set form and to suppress bar (55), described in suppress bar (55) and overlay on power switch pipe (4).
6. the fixing controller for electric vehicle heat abstractor of a kind of shell fragment according to claim 1, is characterized in that: described in suppress limit (52) end arc is set overlay bending position (56).
7. according to the fixing controller for electric vehicle heat abstractor of a kind of shell fragment described in claim 1-6 any one, it is characterized in that: between described mounting plane (13) and power switch pipe (4), heat insulating lamella (7) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545939.1A CN103619148B (en) | 2013-11-06 | 2013-11-06 | The electric vehicle controller heat dissipation device that a kind of shell fragment is fixing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310545939.1A CN103619148B (en) | 2013-11-06 | 2013-11-06 | The electric vehicle controller heat dissipation device that a kind of shell fragment is fixing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103619148A true CN103619148A (en) | 2014-03-05 |
| CN103619148B CN103619148B (en) | 2016-04-20 |
Family
ID=50169850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310545939.1A Active CN103619148B (en) | 2013-11-06 | 2013-11-06 | The electric vehicle controller heat dissipation device that a kind of shell fragment is fixing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103619148B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619147A (en) * | 2013-11-06 | 2014-03-05 | 广东高标电子科技有限公司 | Elastically-fixed sheet Electric vehicle controller heat dissipation device |
| CN105702645A (en) * | 2016-03-28 | 2016-06-22 | 江苏协昌电子科技股份有限公司 | MOS transistor radiating structure and electric vehicle controller |
| CN110177438A (en) * | 2019-04-28 | 2019-08-27 | 曾志刚 | Controller for electric vehicle and detection method |
| WO2020211636A1 (en) * | 2019-04-17 | 2020-10-22 | 南京溧水电子研究所有限公司 | Mos transistor fixing structure for electric vehicle controller |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146641Y (en) * | 2008-01-12 | 2008-11-05 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN201197229Y (en) * | 2008-04-30 | 2009-02-18 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN201234409Y (en) * | 2008-05-27 | 2009-05-06 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| WO2013059917A1 (en) * | 2011-10-26 | 2013-05-02 | Accelerated Systems Inc. | Enclosure for an electronic assembly for a battery powered lawn mower |
| KR20130075415A (en) * | 2011-12-27 | 2013-07-05 | 주식회사 에이티티알앤디 | A cooling apparatus |
| CN203242611U (en) * | 2013-05-03 | 2013-10-16 | 杭州阔博科技有限公司 | Fixed assembly for transistors |
| CN203597009U (en) * | 2013-11-06 | 2014-05-14 | 广东高标电子科技有限公司 | Heat dissipation device of electric vehicle controller and fixed through elastic strip |
-
2013
- 2013-11-06 CN CN201310545939.1A patent/CN103619148B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201146641Y (en) * | 2008-01-12 | 2008-11-05 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN201197229Y (en) * | 2008-04-30 | 2009-02-18 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| CN201234409Y (en) * | 2008-05-27 | 2009-05-06 | 天津市松正电动科技有限公司 | Controller for electric vehicle |
| WO2013059917A1 (en) * | 2011-10-26 | 2013-05-02 | Accelerated Systems Inc. | Enclosure for an electronic assembly for a battery powered lawn mower |
| KR20130075415A (en) * | 2011-12-27 | 2013-07-05 | 주식회사 에이티티알앤디 | A cooling apparatus |
| CN203242611U (en) * | 2013-05-03 | 2013-10-16 | 杭州阔博科技有限公司 | Fixed assembly for transistors |
| CN203597009U (en) * | 2013-11-06 | 2014-05-14 | 广东高标电子科技有限公司 | Heat dissipation device of electric vehicle controller and fixed through elastic strip |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103619147A (en) * | 2013-11-06 | 2014-03-05 | 广东高标电子科技有限公司 | Elastically-fixed sheet Electric vehicle controller heat dissipation device |
| CN103619147B (en) * | 2013-11-06 | 2016-06-15 | 广东高标电子科技有限公司 | A kind of resiliently mounted electric vehicle controller heat dissipation device |
| CN105702645A (en) * | 2016-03-28 | 2016-06-22 | 江苏协昌电子科技股份有限公司 | MOS transistor radiating structure and electric vehicle controller |
| CN105702645B (en) * | 2016-03-28 | 2019-01-25 | 张家港凯诚软件科技有限公司 | A kind of metal-oxide-semiconductor radiator structure and controller for electric vehicle |
| WO2020211636A1 (en) * | 2019-04-17 | 2020-10-22 | 南京溧水电子研究所有限公司 | Mos transistor fixing structure for electric vehicle controller |
| CN110177438A (en) * | 2019-04-28 | 2019-08-27 | 曾志刚 | Controller for electric vehicle and detection method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103619148B (en) | 2016-04-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203733570U (en) | Heat dissipation device of high-frequency switching mode power supply transformer | |
| CN103619148B (en) | The electric vehicle controller heat dissipation device that a kind of shell fragment is fixing | |
| CN103619147A (en) | Elastically-fixed sheet Electric vehicle controller heat dissipation device | |
| CN203674416U (en) | Wire connection fixing device | |
| CN203597009U (en) | Heat dissipation device of electric vehicle controller and fixed through elastic strip | |
| CN203597008U (en) | Heat dissipation device of electric vehicle controller in elastic fixation | |
| CN105072710A (en) | Stacked high-power PTC heater | |
| CN203135043U (en) | Conductive polar pole | |
| CN203597004U (en) | Electric vehicle controller radiator | |
| CN201438409U (en) | Planar transformer component device | |
| CN204029936U (en) | A kind of cylindrical battery cell shaping mould | |
| CN202796818U (en) | Direct water-cooling type quick fuse | |
| CN104112937B (en) | A kind of arrangements of electric connection | |
| CN201435892Y (en) | Controller for electric vehicle | |
| CN103208692A (en) | Conductive pole column | |
| CN203674207U (en) | Thyristor welding crimping assembly | |
| CN205249058U (en) | Switching power supply of easy assembly | |
| CN204696905U (en) | The electronic device mounting structure of frequency converter | |
| CN201590984U (en) | Fixing device for power MOS tube and power diode of electric automobile controller | |
| CN201868254U (en) | Integral contact terminal | |
| CN203722842U (en) | PTC heater | |
| CN201298978Y (en) | Electric bicycle controller | |
| CN202930863U (en) | Side-push plate for generatrix groove connector | |
| CN208655553U (en) | A kind of fuse apparatus in power battery | |
| CN201518356U (en) | Electric connector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 3 Gongye West Road, Songshan Lake Park, Dongguan City, Guangdong Province, 523000 Patentee after: Guangdong Gaobiao Intelligent Technology Co.,Ltd. Address before: 523808 No.3, Gongye West Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: SHENZHEN GOBAO ELECTRONIC TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |