CN104201040A - Armored insulating combined high-voltage change-over switch - Google Patents
Armored insulating combined high-voltage change-over switch Download PDFInfo
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- CN104201040A CN104201040A CN201410392060.2A CN201410392060A CN104201040A CN 104201040 A CN104201040 A CN 104201040A CN 201410392060 A CN201410392060 A CN 201410392060A CN 104201040 A CN104201040 A CN 104201040A
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- 230000007246 mechanism Effects 0.000 claims abstract description 84
- 230000008033 biological extinction Effects 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000009977 dual effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses an armored insulating combined high-voltage change-over switch. The armored insulating combined high-voltage change-over switch comprises a dual-power-source switching device, a vacuum circuit breaker and an armored shell; the dual-power-source switching device comprises a main power source binding post, an auxiliary power source binding post, an outgoing line column and a switching operating mechanism; the vacuum circuit breaker comprises an incoming line terminal, outgoing line terminals, vacuum arc extinction mechanisms and an operating mechanism; the switching operating mechanism comprises a driving mechanism with a driving arm, a lever and an interlocking mechanism, the interlocking mechanism is used for synchronously driving a main vacuum arc extinction mechanism and an auxiliary vacuum arc extinction mechanism to perform opening-closing action, the driving arm of the driving mechanism is rotatably connected with one end of the lever, and the other end of the lever is connected with the interlocking mechanism; the incoming line terminal of the vacuum circuit breaker is electrically connected with the outgoing line column of the dual-power-source switching device, and an insulating protective layer sleeves the connecting position. According to the armored insulating combined high-voltage change-over switch, dual-power-source switching is performed, required time is short, and the switching is close to time-difference-free switching.
Description
The application is that application number is 201110157082.7, and the applying date is on June 13rd, 2011, and invention and created name is the divisional application of the application for a patent for invention of " Combined-type high-voltage conversion switch ".
Technical field
The invention belongs to high-voltage dual power construction of switch design field, be specifically related to a kind of Combined-type high-voltage conversion switch.
Background technology
At present, in order to improve the reliability of power supply, a large amount of dual power supply circuits (Liang Tiao supply line, is generally a circuit on power system, and from reserve line) that adopt in electric power system, in the time that a line power breaks down, by another line powering.For this reason need be by control device, indoor will employing is no less than two high-tension switch cabinets, and open air is no less than high-voltage switch gear on two important actors, could realize the requirement of selecting supply line.This control mode, has not only increased user's equipment and operating cost, but also the accident of power supply hidden danger that lies dormant.High-voltage switch gear on two and above high-tension switch cabinet/post, is difficult to realize the mechanical chain between high-voltage switch gear on high-tension switch cabinet/post.It is generally acknowledged, the electrical interlocks that only has control device is insecure, once duplicate supply feed simultaneously all likely appears in control device fault or operations staff's misoperation, will lead to major accident.
Chinese patent application 200610154471.3 discloses a kind of outdoor high voltage double power source vacuum breaker, this kind of vacuum circuit-breaker installs the high-voltage dual power conversion equipment of a chain double-throw disconnecting switch composition additional on vacuum circuit-breaker, although this kind of mode realized high-voltage dual power while automatically switching with electrical interlocks and mechanical chain, reduce the two-way high pressure possibility of feed simultaneously, it is current more satisfactory high-voltage dual power switching device shifter, but also there is drawback, the isolating switch of its double-throw is directly exposed in external environment, along with the number of times using and the increase of time, contact surface is oxidation constantly, causing contact resistance to increase conductive capability reduces, the shortcomings such as the easy heating of contact burns out.In addition, the concrete handover operation process of this kind of double power source vacuum breaker is: first disconnect the sound conductive contact in vacuum interrupter, and then utilize double-throw disconnecting switch to carry out duplicate supply switching, therefore switching time is longer, generally need more than 10 seconds, so long interruption duration, will cause electrical equipment to restart could move, and seriously reduces operating efficiency.
Summary of the invention
The object of this invention is to provide a kind of switch required time shorter, be bordering on without the time difference switch a kind of double-power supply switching device.
The technical scheme that realizes the object of the invention is: a kind of armouring insulated type Combined-type high-voltage conversion switch, comprises double-power supply switching device and vacuum circuit-breaker; Described double-power supply switching device comprises main power source binding post, auxiliary power binding post, outlet column and handover operation mechanism; Described vacuum circuit-breaker comprises input terminal, outlet terminal, vacuum interruption mechanism and operating mechanism; Described double-power supply switching device also comprises the main vacuum interruption mechanism being electrically connected with main power source binding post and the secondary vacuum vacuum interruption mechanism being electrically connected with auxiliary power binding post; Described handover operation mechanism comprises that the driving mechanism, lever and with actuating arm are for the synchronous interlocking gear that drives main vacuum interruption mechanism and secondary vacuum vacuum interruption mechanism to carry out divide-shut brake action, actuating arm in described driving mechanism and one end of lever are rotationally connected, and the other end of described lever is connected with interlocking gear; The input terminal of described vacuum circuit-breaker is electrically connected with the outlet column in double-power supply switching device.Described interlocking gear comprises main shaft, be arranged on main transmission connecting lever, auxiliary spindle on main shaft, be arranged on auxiliary driving connecting lever on auxiliary spindle, two ends are respectively with described main transmission connecting lever and secondaryly rotate the drive link that connecting lever is connected; Described main transmission connecting lever is connected with the moving contact in main vacuum interruption mechanism, and described auxiliary driving connecting lever is connected with the moving contact in secondary vacuum vacuum interruption mechanism; The other end of described lever and the middle part of drive link are rotationally connected.Described main vacuum interruption mechanism and secondary vacuum vacuum interruption mechanism are separately positioned on the two side ends of housing, and the level that is is contour is symmetrical arranged; Described drive link is horizontally disposed with; Described lever is arranged in the middle of main shaft and auxiliary spindle.Outlet column in described double-power supply switching device is arranged in its shell bottom wall; Input terminal in described vacuum circuit-breaker is arranged on its top; Described vacuum circuit-breaker is arranged on described outlet column below, and its input terminal is connected with the outlet column in double-power supply switching device.Described vacuum circuit-breaker is provided with three vacuum arc extinction terminal posts that vertically arrange, and includes a vacuum interruption mechanism vertically arranging in each vacuum arc extinction terminal post; Described operating mechanism is arranged on vacuum interruption mechanism bottom.In each vacuum arc extinction terminal post both sides, be arranged with two outlet terminals that are electrically connected with moving contact in vacuum interruption mechanism in this pole.
In such scheme, being connected position with the outlet column in double-power supply switching device outside, the input terminal of vacuum circuit-breaker is arranged with insulating protective layer.
In such scheme, also comprise an armouring housing and be arranged on two lead-out terminals on armouring housing; Described each lead-out terminal is electrically connected with the corresponding outlet terminal on vacuum circuit-breaker separately; Main power source binding post and auxiliary power binding post in described duplicate supply switching mechanism stretch out armouring housing.
The present invention has following good effect: in (1) the present invention, described double-power supply switching device also comprises the main vacuum interruption mechanism being electrically connected with main power source binding post and the secondary vacuum vacuum interruption mechanism being electrically connected with auxiliary power binding post; Described handover operation mechanism comprises that the driving mechanism, lever and with actuating arm are for the synchronous interlocking gear that drives main vacuum interruption mechanism and secondary vacuum vacuum interruption mechanism to carry out divide-shut brake action, actuating arm in described driving mechanism and one end of lever are rotationally connected, and the other end of described lever is connected with interlocking gear; The input terminal of described vacuum circuit-breaker is electrically connected with the outlet column in double-power supply switching device.This kind of structure can be in main power source break-make, utilize interlocking gear to carry out break-make to auxiliary power, its interruption duration is substantially equal to the operate time of tripping mechanism, approximately tens of milliseconds, compare with the interruption duration of tens of seconds traditionally, can ensure that most of electrical equipment does not need to restart could work, and what effectively ensured to produce carries out continuously, has huge economic benefit.
(2) in the present invention, described interlocking gear comprises main shaft, be arranged on main transmission connecting lever, auxiliary spindle on main shaft, be arranged on auxiliary driving connecting lever on auxiliary spindle, two ends are respectively with described main transmission connecting lever and secondaryly rotate the drive link that connecting lever is connected; Described main transmission connecting lever is connected with the moving contact in main vacuum interruption mechanism, and described auxiliary driving connecting lever is connected with the moving contact in secondary vacuum vacuum interruption mechanism; The other end of described lever and the middle part of drive link are rotationally connected.This structure is comparatively simplified compactness, fully dwindles the installing space that entirety takies, and reduces manufacturing cost; The also effective reliability and stability of safety action of this structure in addition.
Brief description of the drawings
For content of the present invention is more likely to be clearly understood, according to invention effect also by reference to the accompanying drawings, the present invention is further detailed explanation, wherein below
Fig. 1 is a kind of structural representation of the present invention.
Shown in accompanying drawing, be labeled as: double-power supply switching device 1, main power source binding post 11, auxiliary power binding post 12, outlet column 13; main vacuum interruption mechanism 15, secondary vacuum vacuum interruption mechanism 16, vacuum circuit-breaker 2, input terminal 21; outlet terminal 22, handover operation mechanism 3, driving mechanism 31, lever 32; interlocking gear 33, main shaft 331, main transmission connecting lever 332, auxiliary spindle 333; auxiliary driving connecting lever 334, drive link 335, insulating protective layer 4; vacuum arc extinction terminal post 5, armouring housing 7, lead-out terminal 71.
Embodiment
Fig. 1 is a kind of structural representation of the present invention, has shown a kind of embodiment of the present invention.
The present embodiment is a kind of Combined-type high-voltage conversion switch, sees Fig. 1, comprises armouring housing 7, and is arranged on double-power supply switching device 1 and vacuum circuit-breaker 2 in armouring housing 7; Described double-power supply switching device 1 comprises main power source binding post 11, auxiliary power binding post 12, outlet column 13 and handover operation mechanism 3; Described vacuum circuit-breaker 2 comprises input terminal 21, outlet terminal 22, vacuum interruption mechanism and operating mechanism.
Described double-power supply switching device 1 also comprises the main vacuum interruption mechanism 15 being electrically connected with main power source binding post 11 and the secondary vacuum vacuum interruption mechanism 16 being electrically connected with auxiliary power binding post 12; Described handover operation mechanism 3 comprises that the driving mechanism 31, lever 32 and with actuating arm 311 are for the synchronous interlocking gear 33 that drives main vacuum interruption mechanism 15 and secondary vacuum vacuum interruption mechanism 16 to carry out divide-shut brake action, actuating arm in described driving mechanism 31 and one end of lever 32 are rotationally connected, and the other end of described lever 32 is connected with interlocking gear 33; The input terminal 21 of described vacuum circuit-breaker 2 is electrically connected with the outlet column 13 in double-power supply switching device 1.
Described interlocking gear 33 comprises main shaft 331, be arranged on main transmission connecting lever 332, auxiliary spindle 333 on main shaft 331, be arranged on auxiliary driving connecting lever 334 on auxiliary spindle 333, two ends are respectively with described main transmission connecting lever 332 and secondaryly rotate the drive link 335 that connecting lever is connected; Described main transmission connecting lever 332 is connected with the moving contact in main vacuum interruption mechanism 15, and described auxiliary driving connecting lever 334 is connected with the moving contact in secondary vacuum vacuum interruption mechanism 16; The middle part of the other end of described lever 32 and drive link 335 is rotationally connected.
Described main vacuum interruption mechanism 15 and secondary vacuum vacuum interruption mechanism 16 are separately positioned on the two side ends of housing, and the level that is is contour is symmetrical arranged; Described drive link 335 is horizontally disposed with; Described lever 32 is arranged in the middle of main shaft 331 and auxiliary spindle 333.
In the present embodiment, adopt two vacuum interrupters also referred to as vacuum switch tube as main vacuum interruption mechanism 15 and secondary vacuum vacuum interruption mechanism 16.
Outlet column 13 in described double-power supply switching device 1 is arranged in its shell bottom wall; Input terminal 21 in described vacuum circuit-breaker 2 is arranged on its top; Described vacuum circuit-breaker 2 is arranged on described outlet column 13 belows, and its input terminal 21 is connected with the outlet column 13 in double-power supply switching device 1.
Being connected position with the outlet column 13 in double-power supply switching device 1 outside, the input terminal 21 of vacuum circuit-breaker 2 is arranged with insulating protective layer 4.
Described vacuum circuit-breaker 2 is provided with three vacuum arc extinction terminal posts 5 that vertically arrange, and includes a vacuum interruption mechanism vertically arranging in each vacuum arc extinction terminal post 5; Described operating mechanism is arranged on vacuum interruption mechanism bottom.
In each vacuum arc extinction terminal post 5 both sides, be arranged with two outlet terminals 22 that are electrically connected with moving contact in vacuum interruption mechanism in this pole.
Described armouring housing 7 is provided with two lead-out terminals 71; Described each lead-out terminal 71 is electrically connected with the corresponding outlet terminal 22 on vacuum circuit-breaker 2 separately; Main power source binding post 11 and auxiliary power binding post 12 in described duplicate supply switching mechanism stretch out armouring housing 7.
The present invention can be in main power source break-make, utilize interlocking gear to carry out break-make to auxiliary power, its interruption duration is substantially equal to the operate time of tripping mechanism, approximately tens of milliseconds, compare with the interruption duration of tens of seconds traditionally, can ensure that most of electrical equipment does not need to restart could work, and what effectively ensured to produce carries out continuously, has huge economic benefit.Structure of the present invention is comparatively simplified compactness, fully dwindles the installing space that entirety takies, and reduces manufacturing cost; The also effective reliability and stability of safety action of this structure in addition.
Obviously; above-described embodiment is only for example of the present invention is clearly described; and be not the restriction to embodiments of the present invention; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description, and these belong to apparent variation that spirit of the present invention extended out or variation still among protection scope of the present invention.
Claims (1)
1. an armouring insulated type Combined-type high-voltage conversion switch, comprises double-power supply switching device (1) and vacuum circuit-breaker (2); Described double-power supply switching device (1) comprises main power source binding post (11), auxiliary power binding post (12), outlet column (13) and handover operation mechanism (3); Described vacuum circuit-breaker (2) comprises input terminal (21), outlet terminal (22), vacuum interruption mechanism and operating mechanism; It is characterized in that:
Described double-power supply switching device (1) also comprises the main vacuum interruption mechanism (15) being electrically connected with main power source binding post (11) and the secondary vacuum interruption mechanism (16) being electrically connected with auxiliary power binding post (12); Described handover operation mechanism (3) comprises that the have actuating arm driving mechanism (31), lever (32) and of (311) is for the synchronous interlocking gear (33) that drives main vacuum interruption mechanism (15) and secondary vacuum interruption mechanism (16) to carry out divide-shut brake action, one end of actuating arm in described driving mechanism (31) and lever (32) is rotationally connected, and the other end of described lever (32) is connected with interlocking gear (33); The input terminal (21) of described vacuum circuit-breaker (2) is electrically connected with the outlet column (13) in double-power supply switching device (1); Described interlocking gear (33) comprises main shaft (331), be arranged on main transmission connecting lever (332), auxiliary spindle (333) on main shaft (331), be arranged on auxiliary driving connecting lever (334) on auxiliary spindle (333), two ends are respectively with described main transmission connecting lever (332) and secondaryly rotate the drive link (335) that connecting lever is connected; Described main transmission connecting lever (332) is connected with the moving contact in main vacuum interruption mechanism (15), and described auxiliary driving connecting lever (334) is connected with the moving contact in secondary vacuum interruption mechanism (16); The middle part of the other end of described lever (32) and drive link (335) is rotationally connected; Described main vacuum interruption mechanism (15) and secondary vacuum interruption mechanism (16) are separately positioned on the two side ends of housing, and the level that is is contour is symmetrical arranged; Described drive link (335) is horizontally disposed with; Described lever (32) is arranged in the middle of main shaft (331) and auxiliary spindle (333); Outlet column (13) in described double-power supply switching device (1) is arranged in its shell bottom wall; Input terminal (21) in described vacuum circuit-breaker (2) is arranged on its top; Described vacuum circuit-breaker (2) is arranged on described outlet column (13) below, and its input terminal (21) is connected with the outlet column (13) in double-power supply switching device (1); Described vacuum circuit-breaker (2) is provided with three vacuum arc extinction terminal posts (5) that vertically arrange, and includes a vacuum interruption mechanism vertically arranging in each vacuum arc extinction terminal post (5); Described operating mechanism is arranged on vacuum interruption mechanism bottom; In each vacuum arc extinction terminal post (5) both sides, be arranged with two outlet terminals (22) that are electrically connected with moving contact in vacuum interruption mechanism in this pole;
Being connected position with the outlet column (13) in double-power supply switching device (1) outside, the input terminal (21) of vacuum circuit-breaker (2) is arranged with insulating protective layer (4);
Combinations thereof formula high pressure change over switch also comprises an armouring housing (7) and is arranged on two lead-out terminals (71) on armouring housing (7); Described each lead-out terminal (71) is electrically connected with the corresponding outlet terminal (22) on vacuum circuit-breaker (2) separately; Main power source binding post (11) and auxiliary power binding post (12) in described double-power supply switching device stretch out armouring housing (7).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110157082.7A CN102394197B (en) | 2011-06-13 | 2011-06-13 | Combined high voltage transfer switch |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110157082.7A Division CN102394197B (en) | 2011-06-13 | 2011-06-13 | Combined high voltage transfer switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104201040A true CN104201040A (en) | 2014-12-10 |
| CN104201040B CN104201040B (en) | 2016-05-11 |
Family
ID=45861458
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410391957.3A Expired - Fee Related CN104183417B (en) | 2011-06-13 | 2011-06-13 | The insulated type Combined-type high-voltage conversion switch that switching time is shorter |
| CN201410392060.2A Expired - Fee Related CN104201040B (en) | 2011-06-13 | 2011-06-13 | Armouring insulated type Combined-type high-voltage conversion switch |
| CN201110157082.7A Active CN102394197B (en) | 2011-06-13 | 2011-06-13 | Combined high voltage transfer switch |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410391957.3A Expired - Fee Related CN104183417B (en) | 2011-06-13 | 2011-06-13 | The insulated type Combined-type high-voltage conversion switch that switching time is shorter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110157082.7A Active CN102394197B (en) | 2011-06-13 | 2011-06-13 | Combined high voltage transfer switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN104183417B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183418A (en) * | 2011-06-13 | 2014-12-03 | 苏州贝腾特电子科技有限公司 | Armoured insulation type combined high-voltage change-over switch with short switching time |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201046B (en) * | 2011-06-13 | 2017-02-08 | 乐清市华尊电气有限公司 | Combined high-voltage change-over switch with short switching time |
| CN104036985B (en) * | 2014-06-09 | 2016-02-24 | 福开尔（西安）电气有限公司 | A kind of earthed switch of double-fracture circuit breaker |
| CN105390333B (en) * | 2015-12-23 | 2020-04-07 | 黑龙江博瑞特高新技术开发有限公司 | Fast dual-power-supply change-over switch and change-over control method |
| CN111696818B (en) * | 2020-06-23 | 2022-02-08 | 广东电网有限责任公司 | Combined vacuum circuit breaker device |
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| US20020067230A1 (en) * | 2000-12-04 | 2002-06-06 | Yoon Seok Jung | Vacuum circuit breaker |
| CN1945771A (en) * | 2006-10-29 | 2007-04-11 | 宝光集团有限公司 | Outdoor high voltage double power source vacuum breaker |
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| CN101383239A (en) * | 2008-06-26 | 2009-03-11 | 黄勤飞 | Chamber type automatic duplicate supply converting switch |
| CN201252029Y (en) * | 2008-06-26 | 2009-06-03 | 黄勤飞 | Intelligent double-power conversion device |
| CN101504894A (en) * | 2008-04-03 | 2009-08-12 | 黄勤飞 | Intelligent high voltage duplicate power source converting switch |
| CN101814400A (en) * | 2010-03-22 | 2010-08-25 | 郑逸扬 | Automatic high-voltage circuit breaker |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3742459C2 (en) * | 1987-12-15 | 1994-06-16 | Asea Brown Boveri | Drive device for an electrical medium-voltage or high-voltage switch |
| CN202134455U (en) * | 2011-06-13 | 2012-02-01 | 苏肄鹏 | Combined high voltage transfer switch |
-
2011
- 2011-06-13 CN CN201410391957.3A patent/CN104183417B/en not_active Expired - Fee Related
- 2011-06-13 CN CN201410392060.2A patent/CN104201040B/en not_active Expired - Fee Related
- 2011-06-13 CN CN201110157082.7A patent/CN102394197B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020067230A1 (en) * | 2000-12-04 | 2002-06-06 | Yoon Seok Jung | Vacuum circuit breaker |
| CN1945771A (en) * | 2006-10-29 | 2007-04-11 | 宝光集团有限公司 | Outdoor high voltage double power source vacuum breaker |
| CN101266894A (en) * | 2008-04-03 | 2008-09-17 | 黄勤飞 | An intelligent high-voltage dual power conversion switch |
| CN101504894A (en) * | 2008-04-03 | 2009-08-12 | 黄勤飞 | Intelligent high voltage duplicate power source converting switch |
| CN101383239A (en) * | 2008-06-26 | 2009-03-11 | 黄勤飞 | Chamber type automatic duplicate supply converting switch |
| CN201252029Y (en) * | 2008-06-26 | 2009-06-03 | 黄勤飞 | Intelligent double-power conversion device |
| CN101814400A (en) * | 2010-03-22 | 2010-08-25 | 郑逸扬 | Automatic high-voltage circuit breaker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183418A (en) * | 2011-06-13 | 2014-12-03 | 苏州贝腾特电子科技有限公司 | Armoured insulation type combined high-voltage change-over switch with short switching time |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104201040B (en) | 2016-05-11 |
| CN104183417B (en) | 2016-05-11 |
| CN102394197B (en) | 2014-10-01 |
| CN104183417A (en) | 2014-12-03 |
| CN102394197A (en) | 2012-03-28 |
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Inventor after: Li Jianjie Inventor after: Liu Jia Inventor after: Ma Jian Inventor after: Zhang Guobin Inventor after: Qi Bin Inventor after: Liu Tao Inventor after: Song Chunyu Inventor after: Wang Dan Inventor after: Cheng Yinjian Inventor after: An Jun Inventor before: Qian Caiying |
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Effective date of registration: 20160330 Address after: 256600, No. four, 521 the Yellow River Road, Bincheng District, Shandong, Binzhou Applicant after: Binzhou Dong Li Electric Design Co., Ltd Address before: 215121 Suzhou Industrial Park, Jiangsu, South Road, a large harvest Plaza, room 1, room 809 Applicant before: Suzhou Beitengte Electronic Technology Co., Ltd. |
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