CN104703443B - Heat dissipation plug box - Google Patents
Heat dissipation plug box Download PDFInfo
- Publication number
- CN104703443B CN104703443B CN201510071934.9A CN201510071934A CN104703443B CN 104703443 B CN104703443 B CN 104703443B CN 201510071934 A CN201510071934 A CN 201510071934A CN 104703443 B CN104703443 B CN 104703443B
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- Prior art keywords
- heat
- conducting plate
- subrack
- radiating
- sidepiece
- Prior art date
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- 230000017525 heat dissipation Effects 0.000 title abstract 5
- 239000000758 substrate Substances 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 230000005855 radiation Effects 0.000 claims description 2
- 230000006978 adaptation Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007667 floating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000278713 Theora Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of communication equipment and especially relates to a heat dissipation plug box. The heat dissipation plug box comprises a box, wherein the box comprises a front plug box region, a rear plug box region, and a backboard; the backboard is arranged between the front plug box region and the rear plug box region and the box is sealed. A plug board comprises a front plug board and a rear plug board both which are connected by the backboard, and the rear plug board is used for providing an external connector; the front plug board comprises a front plug board substrate, a top heat-conducting plate and a bottom heat-conducting plate; the top heat-conducting plate is fixedly arranged on the upper surface of the front plug board substrate, and the bottom heat-conducting plate is fixedly arranged on the lower surface of the front plug board substrate; the upper or lower surface of the front plug board substrate is provided with components, a transitive heat-conducting plate is arranged among the component, the top heat-conducting plate and the bottom heat-conducting plate and used for exchanging heat among the component, the top heat-conducting plate and the bottom heat-conducting plate; the heat dissipation plug box further comprises a heat dissipation assembly which is used for dissipating heat conducted to the top heat-conducting plate and the bottom heat-conducting plate outside the plug box.
Description
Technical field
A kind of the present invention relates to technical field of communication equipment, more particularly to radiating subrack.
Background technology
With the development that smart city is built, substantial amounts of demand is generated to access and gateway kind equipment.Most of situation,
These access devices and gateway device be dispersion deployment, be different from good temperature, humidity, dust-proof control professional machine
Room, may be in particular surroundings such as open workshop, wiring channel well, field rain-proof distributing cabinets where these place apparatus.
Plate subrack is most of in the market is radiated using built-in fans, forms cold-hot wind and exchange logical outside casing case
Road.This mode is designed for the application of standard machine room, and when in high humidity, the environment of floating dust, dust can be at cabinet
Deposit on the circuit board of vent passages, add wet environment, it may appear that the failure high discovery such as electric leakage, short circuit and component damage
As.
The Chinese utility model patent of Publication No. " 202603120U " discloses a kind of radiating subrack, the radiating subrack
Structure includes subrack and inserted block, during inserted block is by the heat conduction bar insertion subrack at its two ends, is provided with U-shaped guarantor between subrack and heat conduction bar
Shield protection board, the side of the protection board are filled for hollow out, and another side plate bottom is curved convex, the Openworks shape side plate of protection board and heat conduction
Soft chill bar being provided between bar, locking bar being installed on subrack, the bottom of the locking bar and protection board is the side of curved convex
Plate is affixed, and the subrack of the structure eliminates original contact gap between inserted block and subrack, reduces thermal contact resistance, improves scattered
The reliability of heat.But there is also lower column defects：1. the heat-exchange surface between inserted block and chill bar is little, affects the effect of heat exchange
Rate.2. the process of whole heat exchange needs to adjust manually, operation inconvenience relatively.3. the structure member volume for being used for heat exchange is micro-
Little, easy to wear during use to cause performance significantly to decline, also difficulty or ease are safeguarded.4. the heat for being transferred to devan does not have very efficiently
Disperse mode.
The content of the invention
In order to overcome drawbacks described above, the technical problem to be solved in the present invention to be to provide a kind of radiating subrack.
For solving above-mentioned technical problem, the radiating subrack of the present invention includes casing, and the casing includes front subrack area, inserts afterwards
Case area and backboard, the backboard are arranged between the front subrack area and rear subrack area；The box sealing is arranged；In casing
In portion space, laterally homogeneous interval is provided with some plates, and described each plate includes front card and back card/back board, it is described before insert
Plate is arranged on front subrack area, and the back card/back board is arranged on rear subrack area, and the front card is connected by backboard with back card/back board, described
Back card/back board is used for providing external connector；
The front card includes front card substrate, top heat-conducting plate and bottom heat-conducting plate, and the top heat-conducting plate is fixed and set
The upper surface of front card substrate is placed in, the bottom heat-conducting plate is fixedly installed on the lower surface of front card substrate, described front slotting
The upper surface of plate substrate or lower surface are provided with components and parts, set between the components and parts and top heat-conducting plate, bottom heat-conducting plate
Transition heat-conducting block is equipped with, the transition heat-conducting block is used for exchanging the heat between components and parts and top heat-conducting plate, bottom heat-conducting plate；
Also include radiating subassembly, the radiating subassembly is dissipated for conducting to the heat of top heat-conducting plate and bottom heat-conducting plate
To subrack.
Further, the radiating subassembly includes being arranged on the front card substrate heat conduction company relative to backboard side
Connect block, the heat conduction contiguous block takes the shape of the letter U, including bottom and the first sidepiece and the second sidepiece that are arranged on two bottom sides, it is described before
Plate substrate is arranged in the U-lag that first sidepiece, the second sidepiece and bottom are formed；First sidepiece and the second sidepiece
Contact with the top heat-conducting plate and bottom heat-conducting plate respectively；
The radiating subassembly also includes panel, and the panel is arranged on the opposite side of the heat conduction contiguous block sidepiece, described
Panel is touched with the heat conduction contiguous block bottom connection, and the opposite side of the panel is provided with radiator, and the panel is used for handing over
The heat changed between heat conduction contiguous block and radiator.
Further, aid-pulling device, the aid-pulling device are provided with the ora terminalis in the front card relative to backboard side
Including the power arm that the resistance arm and comparative resistance arm that are arranged on panel are arranged, arrange in power arm and between resistance arm
There is rotating fulcrum, the power arm lengths are more than resistance arm.
Further, radiator fan is additionally provided with the radiator.
Further, the radiator is some radiating hinges that pectination radiator includes setting spreader surface.
Further, backboard side being closed in the front card and being provided with front connector, plate closes on backboard side in the rear
Rear connector is provided with, the front connector is connected with the rear connector with after backplane communication, power taking.
Further, the first sidepiece and the second sidepiece in the heat conduction contiguous block is provided with screwed hole, and the heat conduction connects
Connect block to be fixed between the top heat-conducting plate and bottom heat-conducting plate by the screw rod being adapted with screwed hole.
Further, the top heat-conducting plate is fixed on the front card substrate with bottom heat-conducting plate by screw rod.
Further, the transition heat conduction stock material can for copper, aluminium or other can carry out the material of heat exchange.
Further, the material of the top heat-conducting plate, bottom heat-conducting plate and panel is heat conductive silica gel.
The internal heat for producing can be dispersed, so as to keep away by the radiating subrack of present configuration in the case where subrack is sealed
When having exempted from the environment of high humidity, floating dust, dust can be deposited on plate, add wet environment, it may appear that electric leakage, short circuit and components and parts
Damage etc. failure high discovery as.
Description of the drawings
With reference to specification drawings and specific embodiments, the present invention is described in further detail；
Fig. 1 is the dimensional structure diagram of subrack in present invention radiating subrack embodiment；
Fig. 2 is the front schematic view of subrack in present invention radiating subrack embodiment；
Fig. 3 is the structural representation of present invention radiating subrack embodiment centerboard；
Fig. 4 is the structural representation of front card in present invention radiating subrack embodiment；
Fig. 5 is the structural representation of heat conduction contiguous block in present invention radiating subrack embodiment；
Fig. 6 is front card and aid-pulling device attachment structure schematic diagram in present invention radiating subrack embodiment；
Description of reference numerals
Subrack area before 1-；2- backboards；Subrack area after 3-；4- aid-pulling devices；5- plates；6- front cards；7- back card/back boards；Before 8-
Connector；Connector after 9-；10- front card substrates；11- bottoms heat-conducting plate；Heat-conducting plate at the top of 12-；13- components and parts；14- transition
Heat-conducting block；15- heat conduction contiguous blocks；16- panels；17- radiators；18- screw rods；The first sidepieces of 19-；The second sidepieces of 20-；21- bottoms
Portion；22- screwed holes；23- power arms；24- resistance arms；25- rotating fulcrums.
Specific embodiment
Fig. 1 show the dimensional structure diagram of subrack in present invention radiating subrack embodiment, and including casing, casing is in vertical
Body shape, including four side walls and top board, the base plate of connecting side wall, the casing of the structure is in closed.Box house includes front subrack
Area 1, rear subrack area 3 and backboard 2, backboard 2 are arranged between front subrack area 1 and rear subrack area 3, with reference to embodiment shown in Fig. 2
In subrack front schematic view, in housing interior volume, laterally homogeneous interval is provided with some plates 5, arranges on the wall of side
There is the radiator 17 being connected with front card 6.
Fig. 3 show the structural representation of present invention radiating subrack embodiment centerboard, and each plate 5 includes front card 6
With back card/back board 7, front card 6 is arranged on front subrack area 1, and back card/back board 7 is arranged on rear subrack area 3, and front card 6 and back card/back board 7 pass through
Backboard 2 is connected, and the upper and lower surface of front card 6 is provided with components and parts 13, and back card/back board 7 is used for providing external connector, inserts front
Plate 6 closes on 2 side of backboard and is provided with front connector 8, closes on connector 9 after 2 side of backboard is provided with back card/back board 7, front connector 8 with
Backboard 2 communicates, be connected with rear connector 9 after power taking.Additionally, be provided with to help at ora terminalis of the front card relative to the side of backboard pulling out
Device 4.
Fig. 4 show the structural representation of front card in present invention radiating subrack embodiment, and front card 6 includes front card base
Plate 10, top heat-conducting plate 12 and bottom heat-conducting plate 11, top heat-conducting plate 12 are fixedly installed on front card substrate 10 by screw rod 18
Upper surface, bottom heat-conducting plate 11 is fixedly installed on the lower surface of front card substrate 10 by screw rod 18, in front card substrate 10
Upper and lower surface be provided with components and parts 13, between components and parts 13 and top heat-conducting plate 12, bottom heat-conducting plate 11 arrange
There is transition heat-conducting block 14,14 pieces of transition heat conduction is used for exchanging between components and parts 13 and top heat-conducting plate 12, bottom heat-conducting plate 11
Heat, wherein 14 material of transition heat-conducting block can for copper, aluminium or other can carry out the material of heat exchange.
Front card 6 also includes radiating subassembly, and radiating subassembly includes being arranged on front card substrate 10 relative to 2 side of backboard
Heat conduction contiguous block 15, heat conduction contiguous block 15 take the shape of the letter U, including bottom 21 and the first sidepiece 19 and second for being arranged on 21 both sides of bottom
Sidepiece 20, front card substrate 10 are arranged in the first sidepiece 19, the U-lag that the second sidepiece 20 is formed with bottom 21；First sidepiece
19 are contacted with top heat-conducting plate 12 and bottom heat-conducting plate 11 respectively with the second sidepiece 20.Also include panel 16, panel 16 is arranged
In the opposite side of heat conduction contiguous block sidepiece, panel 16 is contacted with heat conduction contiguous block bottom 21, is arranged in the opposite side of panel 16
There is radiator 17, panel 16 is used for exchanging the heat between heat conduction contiguous block 15 and radiator 17, wherein, top heat-conducting plate 12,
The material of bottom heat-conducting plate 11 and panel 16 is heat conductive silica gel.For the speed for accelerating to radiate, the present invention adopts pectination radiator,
Pectination spreader surface is provided with some blades and greatly increases area of dissipation, and the conduction, convection current and radiation to heat can all bring
Very big convenience.Further, in order to accelerate radiating, radiator fan is additionally provided with a heat sink.
The upper and lower surface of front card substrate 10 is provided with components and parts 13, when components and parts 13 are powered to be run, components and parts 13
Surface can produce heat, and the transition heat-conducting block 14 for being arranged on component surface serves components and parts 13 with top heat-conducting plate 12 and bottom
Heat exchange between portion's heat-conducting plate 11, by the heat transmission for producing to top heat-conducting plate 12 and bottom heat-conducting plate 11, while heat conduction
Contiguous block 15 is contacted with top heat-conducting plate 12 and bottom heat-conducting plate 11 again, 15 one end of heat conduction contiguous block and top heat-conducting plate 12 and
Bottom heat-conducting plate 11 contacts, and is provided with radiator 17 on the other end, and radiator 17 is arranged at outside subrack, and components and parts 13 are produced
Raw heat is transferred to the external world by heat exchange and heat transfer, so as to reach the requirement of radiating.In the process, subrack is sealing
, inside does not almost have the convection current of air, also plate 5 is not exposed in the air being connected with the external world, so as to avoid
When in high humidity, the environment of floating dust, dust can be deposited on plate, add wet environment, it may appear that electric leakage, short circuit and component damage
Etc. failure high discovery as.
Fig. 5 show the structural representation of heat conduction contiguous block in present invention radiating subrack embodiment, in heat conduction contiguous block
First sidepiece 19 and the second sidepiece 20 are provided with screwed hole 22, and heat conduction contiguous block 15 is solid by the screw rod being adapted with screwed hole 22
Due between top heat-conducting plate 12 and bottom heat-conducting plate 11.
Fig. 6 show front card and aid-pulling device attachment structure schematic diagram in present invention radiating subrack embodiment, helps and pulls out dress
Put 4 edges for being fixedly installed on panel 16, the aid-pulling device 4 include being arranged on panel 16 from resistance arm 24 and relative hinder
The power arm 23 that the arm of force is arranged, in power arm 23 and from rotating fulcrum 25 is provided between resistance arm 24,23 length of power arm is big
In resistance arm 24, apply the reciprocal active force that plate extracts casing direction out toward on power arm 23, you can easily plate is taken out
From in subrack.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and specification this
The principle of invention, of the invention without departing from the spirit and scope of the present invention also to have various changes and modifications, these changes
Change and improvement is both fallen within scope of the claimed invention.The claimed scope of the invention by appending claims and its
Equivalent is defined.
Claims (9)
1. a kind of radiating subrack, including casing, the casing includes front subrack area (1), rear subrack area (3) and backboard (2), described
Backboard (2) is arranged between front subrack area (1) and rear subrack area (3)；It is characterized in that：
The box sealing is arranged；
In housing interior volume, laterally homogeneous interval is provided with some plates (5), and described each plate (5) include front card
(6) and back card/back board (7), front card (6) are arranged on front subrack area (1), and back card/back board (7) are arranged on rear subrack area (3),
Front card (6) are connected by backboard (2) with back card/back board (7), and described back card/back board (7) are used for providing external connector；
Described front card (6) include front card substrate (10), top heat-conducting plate (12) and bottom heat-conducting plate (11), and the top is led
Hot plate (12) is fixedly installed on the upper surface of front card substrate (10), and bottom heat-conducting plate (11) are fixedly installed on front card base
The lower surface of plate (10), front card substrate (10) upper surface or lower surface be provided with components and parts (13), in the unit
Transition heat-conducting block (14), the transition heat conduction is provided between device (13) and top heat-conducting plate (12), bottom heat-conducting plate (11)
Block (14) is used for exchanging the heat between components and parts (13) and top heat-conducting plate (12), bottom heat-conducting plate (11)；
Also include radiating subassembly, the radiating subassembly is used for conduct to the heat of top heat-conducting plate (12) and bottom heat-conducting plate (11)
Amount is dissipated to outside subrack；
The radiating subassembly includes being arranged on the heat conduction contiguous block on front card substrate (10) relative to backboard (2) side
(15), heat conduction contiguous block (15) take the shape of the letter U, and including bottom (21) and are arranged on first sidepiece (19) and second of two bottom sides
Sidepiece (20), front card substrate (10) are arranged at the first sidepiece (19), the second sidepiece (20) and bottom (21) and are formed
U-lag in；First sidepiece (19) and the second sidepiece (20) respectively with top heat-conducting plate (12) and bottom heat-conducting plate
(11) contact；
The radiating subassembly also includes panel (16), and panel (16) are arranged on the relative of heat conduction contiguous block (15) sidepiece
Side, panel (16) are touched with heat conduction contiguous block (15) bottom connection, are provided with the opposite side of the panel (16) scattered
Hot device (17), described panel (16) are used for exchanging the heat between heat conduction contiguous block (15) and radiator (17).
2. radiating subrack according to claim 1, it is characterised in that：In the front card (6) relative to backboard (2) side
Ora terminalis at be provided with aid-pulling device (4), the aid-pulling device includes the resistance arm (24) being arranged on panel (16) and relative
The power arm (23) that resistance arm is arranged, in power arm (23) and from being provided with rotating fulcrum, the power between resistance arm (24)
Arm (23) length is more than resistance arm (24).
3. radiating subrack according to claim 2, it is characterised in that：Radiation air is additionally provided with the radiator (17)
Fan.
4. radiating subrack according to claim 3, it is characterised in that：Described radiator (17) include setting for pectination radiator
Put some radiating hinges of spreader surface.
5. radiating subrack according to claim 4, it is characterised in that：The setting of backboard (2) side is closed in the front card (6)
Have front connector (8), plate (7) closes on backboard (2) side and is provided with rear connector (9) in the rear, front connector (8) with
It is connected with rear connector (9) after backplane communication, power taking.
6. the radiating subrack according to any one of claim 1-5, it is characterised in that：The of heat conduction contiguous block (15)
One sidepiece (19) and the second sidepiece (20) are provided with screwed hole (22), heat conduction contiguous block (15) by with screwed hole (22) phase
The screw rod of adaptation is fixed between top heat-conducting plate (12) and bottom heat-conducting plate (11).
7. the radiating subrack according to any one of claim 1-5, it is characterised in that：Top heat-conducting plate (12) and bottom
Heat-conducting plate (11) is fixed on front card substrate (10) by screw rod (18).
8. the radiating subrack according to any one of claim 1-5, it is characterised in that：Transition heat-conducting block (14) material can
Think copper, aluminium or other can carry out the material of heat exchange.
9. the radiating subrack according to any one of claim 1-5, it is characterised in that：Top heat-conducting plate (12), bottom
The material of heat-conducting plate (11) and panel (16) is heat conductive silica gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071934.9A CN104703443B (en) | 2015-02-06 | 2015-02-06 | Heat dissipation plug box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510071934.9A CN104703443B (en) | 2015-02-06 | 2015-02-06 | Heat dissipation plug box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104703443A CN104703443A (en) | 2015-06-10 |
| CN104703443B true CN104703443B (en) | 2017-03-22 |
Family
ID=53350086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510071934.9A Active CN104703443B (en) | 2015-02-06 | 2015-02-06 | Heat dissipation plug box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104703443B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517561A (en) * | 2016-06-16 | 2017-12-26 | 中兴通讯股份有限公司 | A kind of printed circuit harden structure and fan inserting box |
| CN105934141B (en) * | 2016-06-28 | 2018-02-13 | 北京无线电测量研究所 | A kind of closed conduction cooling cabinet of modularization |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201118641Y (en) * | 2007-11-05 | 2008-09-17 | 华为技术有限公司 | A rear insertion board for cutter server, cutter server and insertion frame device |
| CN102566710A (en) * | 2011-11-12 | 2012-07-11 | 孔繁忠 | Novel silent case |
| CN203984804U (en) * | 2014-07-18 | 2014-12-03 | 杭州叙简科技有限公司 | A kind of 3U small size high-density installation subrack |
-
2015
- 2015-02-06 CN CN201510071934.9A patent/CN104703443B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104703443A (en) | 2015-06-10 |
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| C06 | Publication | ||
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| CB02 | Change of applicant information |
Address after: Hangzhou City, Zhejiang province Yuhang District 310000 West Street Wuchang No. 998 Building 5 room 706, room 707 Applicant after: HANGZHOU XUJIAN SCIENCE AND TECHNOLOGY Co.,Ltd. Address before: Yuhang District, Hangzhou City, Zhejiang Province, 310000 West No. 1500 Building 1 room 512 Applicant before: HANGZHOU SCOOPER TECHNOLOGY Co.,Ltd. |
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| C14 | Grant of patent or utility model | ||
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A heat dissipation plug-in box Effective date of registration: 20211202 Granted publication date: 20170322 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: HANGZHOU XUJIAN SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2021980013922 |
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Date of cancellation: 20220322 Granted publication date: 20170322 Pledgee: Hangzhou High-tech Financing Guarantee Co.,Ltd. Pledgor: HANGZHOU XUJIAN SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2021980013922 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A heat dissipation plug-in box Effective date of registration: 20220322 Granted publication date: 20170322 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: HANGZHOU XUJIAN SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2022990000162 |
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Date of cancellation: 20230131 Granted publication date: 20170322 Pledgee: Shanghai Guotai Junan Securities Asset Management Co.,Ltd. Pledgor: HANGZHOU XUJIAN SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2022990000162 |
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