CN103915282A - Novel solid insulation vacuum switch three-position isolation earthing switch module - Google Patents
Novel solid insulation vacuum switch three-position isolation earthing switch module Download PDFInfo
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- CN103915282A CN103915282A CN201410170359.3A CN201410170359A CN103915282A CN 103915282 A CN103915282 A CN 103915282A CN 201410170359 A CN201410170359 A CN 201410170359A CN 103915282 A CN103915282 A CN 103915282A
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Abstract
A novel solid insulation vacuum switch three-position isolation earthing switch module is composed of a three-position isolation earthing switch operation end, a three-position isolation earthing switch, a bus interface, an outgoing line terminal, a vacuum switch, an isolation static contact, an earthing contact, an epoxy resin shell and an end cover. The novel solid insulation vacuum switch three-position isolation earthing switch module is characterized in that the three-position isolation earthing switch and the vacuum switch are cast in the epoxy resin shell in parallel and connected with a conductive contact finger base through a movable contact support, the earthing contact is installed on the end cover or the epoxy resin shell in a rear-assembly mode, and the isolation static contact is fixedly sealed inside the epoxy resin shell. According to the novel solid insulation vacuum switch three-position isolation earthing switch module, the outer contours of high-voltage parts at the working position are optimized, no additional shielding nets need to be cast inside the epoxy resin shell, product miniaturization is easily achieved, and the manufacturing technology is simplified; local electric field concentration does not exist, and the product local discharge capacity is low even if the requirement that portions which the human body can touch are earthed is met; the whole product scrapped risk is reduced.
Description
Technical field
The present invention relates to a kind of vacuum switch three station isolation grounding switch modules that are used in high voltage switchgear, particularly a kind of for the novel solid insulation vacuum switch three station isolation grounding switch modules on solid insulation fully closed combined electrical apparatus.
Background technology
Ring network power supply is power supply form conventional in distribution system, and ring main unit is the core component of realizing safe power supply, generally divides air insulation, SF6 insulation and solid insulation three classes.Due to air insulation performance limitations, the general volume of air insulation ring main unit is larger, and floor space is large.And because electrification in high voltage parts are directly exposed in air, properties of product are subject to can be directly affected by environment with reliability.SF6 is the extremely strong gases of a kind of greenhouse effect, is about more than 23000 times of CO2, and is extremely difficult for decomposing, and SF6 ring main unit also exists and leaks and seriously reduce the hidden danger of product insulation property in addition.
Solid insulation ring main unit passes through electrification in high voltage parts sealing, in epoxy material, to utilize the electric property of epoxy excellence to realize insulation.Although be air equally at the dielectric of epoxy inside cavity, its volume is far smaller than conventional air ring main unit.Because electrification in high voltage parts are all sealed in epoxy cavity, product strengthens greatly to the adaptability of environment.In addition the outer surface of epoxy resin housing coat conduction or semi-conductive layer be grounded, more make product reliability greatly improve.Solid insulation has its unique advantage as new technique, in same design, also brings new challenge, how to realize product miniaturization, obtains lower partial discharge quantity when insulating part is external surface grounded.
Solid insulation ring main unit primary side element mainly comprises vacuum switch, earthed switch, and isolating switch,, there is sleeve pipe/interface in entrance bushing/interface, fuse etc.And by vacuum switch, earthed switch and/or isolating switch and to cast in a module be the main flow design in market.In at present design, earthed switch and isolating switch have and make disconnecting link formula three-station, and also useful vacuum switch is realized isolation and grounding function.
Fixing disconnecting link need to be used screw or pin, because can causing electric field, the projection of screw or pin concentrates, thus the voltage endurance capability of reduction product.Particularly, for the design of insulating part external ground, be unfavorable for product miniaturization.This class design gauze screen of also need to casting in epoxy material improves electric field, manufacturing process complexity.Can effectively control electric field with vacuum switch, reduce partial discharge quantity, but vacuum switch cost be high, vacuum switch is not also widely accepted as isolating switch owing to the factor such as leaking and fracture is invisible in addition.
Summary of the invention
For the defect of above-mentioned prior art, the design's object is to provide simple, the inner field intensity of a kind of manufacture craft evenly controlled, the miniaturization solid isolated vacuum switch three station isolation grounding switch modules that insulating part is external surface grounded.
To achieve these goals, the design's technical scheme is as follows:
A kind of novel solid insulation vacuum switch three station isolation grounding switch module solid isolated vacuum switch three station isolation grounding switch modules, by three station isolation grounding switch operating sides, three station isolation grounding switchs, bus interface, outlet terminal, vacuum switch, isolation fixed contact, grounding contact, epoxy resin housing and end cap main element composition; Water parallel with vacuum switch of described three station isolation grounding switchs casts from epoxy resin housing, and supported with conductive contact finger seat and be connected by moving contact; Described grounding contact is installed on end cap or epoxy resin housing by the mode of rear assembling; Isolation fixed contact sealing is in epoxy resin housing.
Described three one end, station isolation grounding switch operating side and three station operating mechanism output shafts are fixed together by (being not limited to) such as pins, and the other end is fixed together by screw thread (being not limited to) through grounding contact and insulation drive rod; Three station isolation grounding switch operating sides and grounding contact seal with sealing ring.
Described grounding contact both sides are provided with bearing, for supporting three station isolation grounding switch operating sides.
Described insulation drive rod coordinates formation screw-nut structure with drive nut.
Described drive nut is fixedly connected with moving contact; Insulation drive rod drives drive nut and moving contact to move up and down to realize the closing of three station isolation grounding switchs, isolation and ground connection.
Three described station operating mechanisms are prior art, can select motor-driven gear transmission composition, drive the three positive and negative rotations in station isolation grounding switch operating side by motor positive and inverse, and the diverse location of realizing switch switches.
Described moving contact supports on the sidewall of two ends and is fixed with guide pad; Three described station isolation grounding switchs support inwall by moving contact and are provided with fixing guide pad, rotate for limiting moving contact.
Described moving contact is fixedly connected with drive nut.
Conductive contact finger is equipped with at described moving contact two ends; Support for the isolation fixed contact of conducting in the time closing position and moving contact, in the time of earthing position, conducting grounding contact and moving contact support.
After described grounding contact, assembling mode is the removable mode that is fixedly connected with; After described grounding contact, assembling mode can be fixed by screw.
In described conductive contact finger seat, be processed with the groove that conductive contact finger is installed.
Described conductive contact finger seat is arranged in moving contact support by the removable mode that is fixedly connected with.
Removable being fixedly connected with between described conductive contact finger seat and moving contact support can be to be threaded, to sell connection, elastic deformation connection, snap close connection, inserting mode.
Described moving contact supports distance between epoxy resin housing and is not less than 2mm.
Described moving contact stayed surface can be coated with last layer insulation or semi-conductive layer; Can improve moving contact stayed surface electric field, improve particularly lightning impulse breakdown voltage of puncture voltage.
Described vacuum switch waters and casts from epoxy resin housing together with conductive contact finger seat, between connect by conductive contact finger.
Described vacuum switch lower end is cast with outlet terminal, and for connecting outlet, upper end is connected with insulated tension pole by screw thread.
Described insulated tension pole and bellows upper end are tightly connected, and bellows lower end is sealingly fastened on end cap, realize the sealing of insulated tension pole interface and epoxy resin shell cavity.
On described epoxy resin housing and the contact-making surface of end cap, there is seal groove, for packing sealing ring into, reach the sealing between epoxy resin housing and end cap.
Described epoxy resin housing left side has observation window, and for judging the service position of moving contact, epoxy resin housing inner side is cast with full skirt.
Described moving contact inside is provided with position indicator and back-moving spring; The moving contact total holding position of back-moving spring direction board in the time of ungrounded position is given prominence to outside moving contact; When moving contact is in isolated location, operator can see position indicator by observation window; In the time that moving contact moves to earthing position, grounding contact will promote position indicator compression reseting spring.This method for indicating position is not increasing under the prerequisite of contact head insulated distance, does not increase under the prerequisite of product size, and clearer and more definite location identification mark can be provided.
The present invention has the following advantages:
1, all high voltage components in the time of service position outside table skeleton all pass through optimization, need to be at epoxy resin
The extra gauze screen of casting in housing, product electric field is even, and insulation distance required under identical withstand voltage is shorter, is easy to realize product miniaturization.Due to without casting gauze screen, simplify manufacturing process in addition.
2, under whole module operating state charged parts around air gap can set according to designing requirement, do not exist internal field to concentrate, though meet human body can touch position all under the condition of ground connection product partial discharge quantity also very low.
3, in the design, conductive contact finger seat is assemblied in moving contact support by dismountable mode, mode than direct pouring in epoxy resin housing, has avoided owing to forgetting and packing the risk that conductive contact finger causes whole product rejection into before conductive contact finger damage or casting.
Brief description of the drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is that structure of the present invention is implemented principle composition
Embodiment
As shown in Figure 1, a kind of novel solid insulation vacuum switch three station isolation grounding switch modules, comprise three station isolation grounding switch operating sides 1, three station isolation grounding switchs 3, bus interface 11, outlet terminal 13, vacuum switch 16, epoxy resin housing 18 and end cap 20.Three station isolation grounding switchs 2 and vacuum switch 16 horizontal arrangement are in same air chamber, and support 6 by moving contact and be connected with conductive contact finger seat 15, and conductive contact finger seat 15 is arranged on moving contact and is supported on 6 by the removable mode that is fixedly connected with.Removable being fixedly connected with between conductive contact finger seat and moving contact support can be to be threaded, to sell connection, elastic deformation connection, snap close connection, inserting mode.
Select in the present embodiment: conductive contact finger seat 15 is threaded connection mode and is arranged in moving contact support 6, and conductive contact finger seat 15 inside are processed with the groove that conductive contact finger is installed.
Three 1 one end, station isolation grounding switch operating sides are connected with three station operating mechanisms, and the other end is fixed together through grounding contact 2 and insulation drive rod 4.Three station isolation grounding switch operating sides 1 also can be made of one with insulation drive rod 4.Three station isolation grounding switch operating sides 1 seal by sealing ring with grounding contact 2.Grounding contact 2 both sides are provided with bearing, for supporting three station isolation grounding switch operating sides 1.
The grounding contact 2 of three station isolation grounding switchs 3 is installed on end cap 20 or epoxy resin housing 18 by the mode of rear assembling.Isolation fixed contact 12 sealings are in epoxy resin housing 18.Moving contact supports 6 modes by rear assembling and is connected with conductive contact finger seat 15.Moving contact 9 moves up and down and realizes closing of three station isolation grounding switchs, isolation and ground connection work, its motion implementation is: three station operating mechanisms drive insulation drive rods 4 to rotate by three station isolation grounding switch operating sides 1, and the drive nut 10 that is fixed together of drive and moving contact 9.Can rotate by restriction moving contact 9 owing to supporting the fixing guide pad of 6 inwalls 7 at moving contact, drive nut 10 and moving contact 9 can only be moved up and down.Conductive contact finger 8 is equipped with at moving contact 9 two ends, for the circuit between conducting moving contact 9 and other parts.
Water and cast from epoxy resin housing together with vacuum switch 14 for supporting the 6 contacts of vacuum switch seats 15 that are connected with moving contact, between them, connect by conductive contact finger.Vacuum switch 14 lower ends are cast with the outlet terminal 13 for connecting outlet, and upper end is connected with insulated tension pole 17 by screw thread.Insulated tension pole 17 is tightly connected with bellows 21 upper ends, and bellows 21 lower ends are sealingly fastened on end cap 20, realize the sealing of insulated tension pole 17 interfaces and epoxy resin housing 18 cavitys.On the contact-making surface of epoxy resin housing 18 and end cap 20, there is seal groove 19, realize the sealing between the two for packing sealing ring into.After assembling, all electrification in high voltage parts all can be reached the degree of protection of IP68 by epoxy sealing, and module can normally be moved under water.The outer surface of epoxy material scribble conduction or semi-conductive layer for ground connection, so just ensured that the territory, access area of whole module is all in low potential.
Epoxy resin housing 18 left sides have observation window 5, for judging the service position of moving contact 9, have improved processing safety.Its feasible implementation is: in moving contact 9 inside, position indicator 22 and back-moving spring 23 are installed, the moving contact 9 total holding position of back-moving spring direction board 22 in the time of ungrounded position is given prominence to outside moving contact 9.When moving contact 9 is in isolated location, operator can see position indicator 22 by observation window 5.In the time that moving contact 9 moves to earthing position, grounding contact 2 will promote position indicator 22 compression reseting springs 23.This method for indicating position is not increasing under the prerequisite of contact head insulated distance, does not increase under the prerequisite of product size, and clearer and more definite location identification mark can be provided.
Under different service conditions, because conductor insulating material is around by electric polarization, cause insulating material to present electrification phenomenon, the radius of this live zone is creepage distance.In order to meet creepage distance requirement in the confined space, epoxy resin housing 18 inner sides are cast with full skirt.
Claims (15)
1. novel solid insulation vacuum switch three station isolation grounding switch modules, by three station isolation grounding switch operating sides, three station isolation grounding switchs, bus interface, outlet terminal, vacuum switch, isolation fixed contact, grounding contact, epoxy resin housing and end cap composition; It is characterized in that: water parallel with vacuum switch of described three station isolation grounding switchs casts from epoxy resin housing, and supported with conductive contact finger seat and be connected by moving contact; Described grounding contact is installed on end cap or epoxy resin housing by the mode of rear assembling; Isolation fixed contact sealing is in epoxy resin housing.
2. novel solid insulation vacuum switch according to claim 1 three station isolation grounding switch modules, it is characterized in that: described three one end, station isolation grounding switch operating side and three station operating mechanism output shafts are fixed together by (being not limited to) such as pins, the other end is fixed together by screw thread (being not limited to) through grounding contact and insulation drive rod; Between three station isolation grounding switch operating sides and grounding contact, seal with sealing ring.
3. novel solid insulation vacuum switch according to claim 2 three station isolation grounding switch modules, is characterized in that: described grounding contact both sides are provided with bearing, support three station isolation grounding switch operating sides.
4. novel solid insulation vacuum switch according to claim 2 three station isolation grounding switch modules, is characterized in that: described insulation drive rod coordinates formation screw-nut structure with drive nut.
5. novel solid insulation vacuum switch according to claim 4 three station isolation grounding switch modules, is characterized in that: described drive nut is fixedly connected with moving contact; Insulation drive rod drives drive nut and moving contact to move up and down to realize the closing of three station isolation grounding switchs, isolation and ground connection.
6. novel solid insulation vacuum switch according to claim 1 three station isolation grounding switch modules, is characterized in that: described moving contact supports on the sidewall of two ends and is fixed with guide pad; Three described station isolation grounding switchs support inwall by moving contact and are provided with fixing guide pad, rotate for limiting moving contact.
7. according to the novel solid insulation vacuum switch three station isolation grounding switch modules described in claim 1 or 6, it is characterized in that: conductive contact finger is equipped with at described moving contact two ends.
8. novel solid insulation vacuum switch according to claim 1 three station isolation grounding switch modules, is characterized in that: after described grounding contact, assembling mode is the removable mode that is fixedly connected with.
9. novel solid insulation vacuum switch according to claim 1 three station isolation grounding switch modules, is characterized in that: in described conductive contact finger seat, be processed with the groove that conductive contact finger is installed.
10. according to the novel solid insulation vacuum switch three station isolation grounding switch modules described in claim 1 or 9, it is characterized in that: described conductive contact finger seat is arranged in moving contact support by the removable mode that is fixedly connected with.
11. novel solid insulation vacuum switch according to claim 10 three station isolation grounding switch modules, it is characterized in that: removable being fixedly connected with between described conductive contact finger seat and moving contact support can be to be threaded, to sell connection, elastic deformation connection, snap close connection, inserting mode.
12. according to the novel solid insulation vacuum switch three station isolation grounding switch modules described in claim 1 or 10, it is characterized in that: described moving contact supports distance between epoxy resin housing and is not less than 2mm.
13. according to the novel solid insulation vacuum switch three station isolation grounding switch modules described in claim 1 or 10 or 12, it is characterized in that: moving contact stayed surface can be coated with last layer insulation or semi-conductive layer.
14. novel solids according to claim 1 insulation vacuum switch three station isolation grounding switch modules, is characterized in that: described vacuum switch waters and casts from epoxy resin housing together with conductive contact finger seat, between connect by conductive contact finger.
15. according to the novel solid insulation vacuum switch three station isolation grounding switch modules described in claim 1 or 10, it is characterized in that: described moving contact inside is provided with position indicator and back-moving spring; The moving contact total holding position of back-moving spring direction board in the time of ungrounded position is given prominence to outside moving contact; When moving contact is in isolated location, operator can see position indicator by observation window; In the time that moving contact moves to earthing position, grounding contact will promote position indicator compression reseting spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170359.3A CN103915282B (en) | 2014-04-25 | 2014-04-25 | Novel solid insulation vacuum switch three-station isolating grounding switch module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410170359.3A CN103915282B (en) | 2014-04-25 | 2014-04-25 | Novel solid insulation vacuum switch three-station isolating grounding switch module |
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| Publication Number | Publication Date |
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| CN103915282A true CN103915282A (en) | 2014-07-09 |
| CN103915282B CN103915282B (en) | 2016-10-05 |
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| CN201410170359.3A Active CN103915282B (en) | 2014-04-25 | 2014-04-25 | Novel solid insulation vacuum switch three-station isolating grounding switch module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390332A (en) * | 2015-12-21 | 2016-03-09 | 华仪电气股份有限公司 | High-voltage vacuum circuit breaker having isolation function |
| CN107731608A (en) * | 2017-11-08 | 2018-02-23 | 北京北开电气股份有限公司 | A kind of high-voltage isulation multi-turn drive mechanism |
| CN115831656A (en) * | 2022-12-02 | 2023-03-21 | 江苏德易迪康科技有限公司 | Stable GIS isolation composite grounding switch with dismounting function |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1355337A2 (en) * | 2002-04-16 | 2003-10-22 | Hitachi, Ltd. | Vacuum switch |
| US20110036811A1 (en) * | 2009-08-12 | 2011-02-17 | Hitachi, Ltd. | Switchgear and Method for Operating Switchgear |
| CN102013354A (en) * | 2010-12-29 | 2011-04-13 | 常州森源力拓开关有限公司 | Three-station isolating switch |
| CN102110956A (en) * | 2010-12-14 | 2011-06-29 | 北京清畅电力技术股份有限公司 | Novel solid insulated switch |
| CN102420399A (en) * | 2011-08-19 | 2012-04-18 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
| CN102810426A (en) * | 2011-06-01 | 2012-12-05 | 北京维益埃电气有限公司 | Combined type vacuum circuit breaker |
| CN202856229U (en) * | 2012-10-24 | 2013-04-03 | 福建中能电气股份有限公司 | Solid insulating ring main unit |
| CN103050325A (en) * | 2012-12-20 | 2013-04-17 | 云南云开电气股份有限公司 | Pole component of solid insulation switch equipment |
| CN203103824U (en) * | 2012-12-31 | 2013-07-31 | 西渥电气（福州）有限公司 | An epoxy resin solid insulation vacuum switch module |
| CN103400720A (en) * | 2013-07-27 | 2013-11-20 | 北海银河开关设备有限公司 | Solid insulation pole |
| CN203326458U (en) * | 2013-06-04 | 2013-12-04 | 虞旭海 | Mounting structure for vacuum switch and isolation ground switch in solid insulation cabinet |
| CN103632882A (en) * | 2013-12-10 | 2014-03-12 | 戴顿（重庆）高压开关有限公司 | Three-position disconnecting switch and vacuum switch integrated insulator |
| CN203910629U (en) * | 2014-04-25 | 2014-10-29 | 协励行(厦门)电气有限公司 | Novel solid insulating vacuum switch three-station isolating grounding switch module |
-
2014
- 2014-04-25 CN CN201410170359.3A patent/CN103915282B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1355337A2 (en) * | 2002-04-16 | 2003-10-22 | Hitachi, Ltd. | Vacuum switch |
| US20110036811A1 (en) * | 2009-08-12 | 2011-02-17 | Hitachi, Ltd. | Switchgear and Method for Operating Switchgear |
| CN102110956A (en) * | 2010-12-14 | 2011-06-29 | 北京清畅电力技术股份有限公司 | Novel solid insulated switch |
| CN102013354A (en) * | 2010-12-29 | 2011-04-13 | 常州森源力拓开关有限公司 | Three-station isolating switch |
| CN102810426A (en) * | 2011-06-01 | 2012-12-05 | 北京维益埃电气有限公司 | Combined type vacuum circuit breaker |
| CN102420399A (en) * | 2011-08-19 | 2012-04-18 | 北京清畅电力技术股份有限公司 | Isolated insulation cover and isolating switch device |
| CN202856229U (en) * | 2012-10-24 | 2013-04-03 | 福建中能电气股份有限公司 | Solid insulating ring main unit |
| CN103050325A (en) * | 2012-12-20 | 2013-04-17 | 云南云开电气股份有限公司 | Pole component of solid insulation switch equipment |
| CN203103824U (en) * | 2012-12-31 | 2013-07-31 | 西渥电气（福州）有限公司 | An epoxy resin solid insulation vacuum switch module |
| CN203326458U (en) * | 2013-06-04 | 2013-12-04 | 虞旭海 | Mounting structure for vacuum switch and isolation ground switch in solid insulation cabinet |
| CN103400720A (en) * | 2013-07-27 | 2013-11-20 | 北海银河开关设备有限公司 | Solid insulation pole |
| CN103632882A (en) * | 2013-12-10 | 2014-03-12 | 戴顿（重庆）高压开关有限公司 | Three-position disconnecting switch and vacuum switch integrated insulator |
| CN203910629U (en) * | 2014-04-25 | 2014-10-29 | 协励行(厦门)电气有限公司 | Novel solid insulating vacuum switch three-station isolating grounding switch module |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105390332A (en) * | 2015-12-21 | 2016-03-09 | 华仪电气股份有限公司 | High-voltage vacuum circuit breaker having isolation function |
| CN105390332B (en) * | 2015-12-21 | 2017-09-08 | 华仪电气股份有限公司 | A kind of high-pressure vacuum breaker with isolation features |
| CN107731608A (en) * | 2017-11-08 | 2018-02-23 | 北京北开电气股份有限公司 | A kind of high-voltage isulation multi-turn drive mechanism |
| CN107731608B (en) * | 2017-11-08 | 2024-04-12 | 北京北开电气股份有限公司 | High-voltage insulation multi-circle transmission structure |
| CN115831656A (en) * | 2022-12-02 | 2023-03-21 | 江苏德易迪康科技有限公司 | Stable GIS isolation composite grounding switch with dismounting function |
| CN115831656B (en) * | 2022-12-02 | 2023-10-17 | 江苏德易迪康科技有限公司 | Stable GIS isolation composite grounding switch with disassembly and assembly functions |
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|---|---|
| CN103915282B (en) | 2016-10-05 |
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Effective date of registration: 20160322 Address after: 361006 Mike building, torch high tech Industrial Development Zone, Huli District, Fujian, Xiamen, China Applicant after: AI Kai (Xiamen) Electric Technology Co., Ltd. Address before: 361006 Mike building, torch high tech Industrial Development Zone, Huli District, Fujian, Xiamen, China Applicant before: SPEED FAIR (XIAMEN) CO., LTD. |
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