CN109545513A - A kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type - Google Patents
A kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type Download PDFInfo
- Publication number
- CN109545513A CN109545513A CN201811606147.XA CN201811606147A CN109545513A CN 109545513 A CN109545513 A CN 109545513A CN 201811606147 A CN201811606147 A CN 201811606147A CN 109545513 A CN109545513 A CN 109545513A
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- China
- Prior art keywords
- pipe
- fuel tank
- mutual inductor
- pressure
- electromagnetic unit
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/20—Instruments transformers
- H01F38/22—Instruments transformers for single phase ac
- H01F38/24—Voltage transformers
- H01F38/26—Constructions
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The invention discloses a kind of capacitance type potential transformer devices of the anti-oil leakage protection of pressure-releasing type, its structure includes: the compound body of fuel tank, lower section capacitive divider, terminal board, support mobile jib, upper section capacitive divider, electromagnetic unit, output connection slot, the compound body of fuel tank be installed below electromagnetic unit and with electromagnetic unit snapping, it is equipped with output connection slot below electromagnetic unit and is electrically connected with output connection slot, when using equipment, pass through the fuel tank composite structure being equipped with, it enables the invention to realize and avoid when magnetic flow is uneven on mutual inductor, high temperature makes the gradually aging of the sealing ring in fuel tank, the expansion of fuel tank box shell is caused the case where oil leak occur, influence the normal work of mutual inductor, and it is easy to cause mutual inductor to generate heat when electromagnetic sleeve loop current is excessive, and then the problem of making voltage be greatly reduced and cause device failure, Equipment is set to effectively prevent the appearance of oil leak and the structure safety of mutual inductor.
Description
Technical field
The present invention is a kind of capacitance type potential transformer device of anti-oil leakage protection of pressure-releasing type, belongs to voltage transformer equipment
Field.
Background technique
Along with the fast development of high voltage power transmission technology, in order to provide reactive power compensation, enhance system stability and
Improving quality of voltage, needs commonly using capacitance type potential transformer, capacitance type potential transformer is divided by series capacitor,
It is depressured and is isolated, a kind of voltage transformer of relay protection etc. through electromagnetic transformer again.
The prior art has following deficiency: when magnetic flow is uneven on mutual inductor, magnetic flow will excessively lead to high temperature, high
Temperature makes the gradually aging of the sealing ring in fuel tank, causes the expansion of fuel tank box shell the case where oil leak occur, influences the normal of mutual inductor
Work, and it is easy to cause mutual inductor pipe to generate heat when electromagnetic sleeve loop current is excessive, and then be greatly reduced voltage and make
At device failure, use is not safe enough.
Summary of the invention
In view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of capacitive batteries of the anti-oil leakage protection of pressure-releasing type
Transformer device is pressed, it is existing to solve the problems, such as.
To achieve the goals above, the present invention is to realize by the following technical solutions: a kind of anti-oil leakage of pressure-releasing type is protected
The capacitance type potential transformer device of shield, structure include: the compound body of fuel tank, lower section capacitive divider, terminal board, branch
Mobile jib, upper section capacitive divider, electromagnetic unit, output connection slot are supportted, the compound body of fuel tank is installed below electromagnetic unit
And with electromagnetic unit snapping, be equipped with output connection slot below the electromagnetic unit and be electrically connected with output connection slot, the electromagnetism
Be equipped with above unit support mobile jib and with support mobile jib interlocking, the support mobile jib top is equipped with terminal board and and terminals
Daughter board interlocking, the terminal board lower section are equipped with upper section capacitive divider, and the upper section capacitive divider is installed on lower economize on electricity
Hold above divider, the compound body of fuel tank includes tank mounting, magnetic screen sleeve, lifting porose disc, ground connection frid, oil level view
Examine window, the magnetic screen sleeve be installed on the outside of tank mounting and with tank mounting snapping, be equipped with below the tank mounting and connect
Ground frid, the tank mounting side be equipped with oil level inspection hole and with oil level inspection hole interlocking, ground connection frid outside is equipped with
Lift porose disc and with lifting porose disc snapping.
Preferably, the tank mounting includes carrying tube body, liquid level side pipe, conduct current device cylinder, electromagnetism casing, it is described
Liquid level side pipe is embedded in carrying tube body side, and electromagnetism casing is equipped with below the carrying tube body and is connect with electromagnetic sleeve pipe thread, described
Electromagnetism casing is installed on above conduct current device cylinder, and ground connection frid is equipped with below the conduct current device cylinder and is buckled with ground connection frid
It connects, oil level inspection hole is equipped on the outside of the liquid level side pipe.
Preferably, the carrying tube body includes mutual inductor pipe, pressurized seal disk, fuel tank, protection pipe, the fuel tank top
Cooperate equipped with pressurized seal disk and with pressurized seal dish gap, be equipped on the outside of the fuel tank mutual inductor pipe and with mutual inductor pipe sleeve
Connect, be equipped on the outside of the mutual inductor pipe protection pipe and with protection pipe snapping, the liquid level side pipe is set to protection pipe left end, the oil
Case is up-narrow and down-wide structure.
Preferably, the pressurized seal disk includes sealing ring upper cover, cushion hole, seal compression layer, the cushion hole is set
In seal compression layer periphery and be equipped with above connection, the seal compression layer with seal compression layer sealing ring upper cover and with it is close
Seal upper cover snapping.
Preferably, the cushion hole includes airbag casing pipe, outer retainer plate, the airbag casing pipe is installed in outer retainer plate
Side and with outer retainer plate clearance fit.
Preferably, the ground slot intralamellar part is equipped with ground line, the airbag casing pipe is empty set direct type structure in multilayer.
Preferably, in the mutually non-extended state of set under the airbag casing pipe normal condition.
Preferably, user can pass through oil by by terminal board power circuit corresponding with the connection of output connection slot
Position inspection hole can cooperate the oil level situation of liquid level side pipe observation fuel tank internal, be convenient for maintenance test, lifting porose disc is for matching
The installation and displacement of equipment are closed, lower section capacitive divider and upper section capacitive divider are as main partial pressure function device, support master
Bar is as main support interface unit, in the course of work, when electromagnetism casing generates biggish electric current, inside conduct current device cylinder
Sensor will be from ground connection frid direction by unwanted currents grounding, and then electric current is avoided to cross the fever damage of ambassador's mutual inductor pipe
The problem of, the magnetic screen sleeve outside fuel tank plays the role of a protection, when the high temperature that electromagnetic unit magnetic flow generates,
Fuel tank internal will appear the case where pressure increases, and airbag casing pipe is squeezed extension along outer retainer plate by high pressure upwards at this time, into
And play the role of release, and then sealing ring upper cover and seal compression layer is cooperated to play the seal protection for fuel tank, prevent
Only oily leakage, and then protect the structure of carrying tube body and other electrical devices safety.
Beneficial effect
Compared with prior art, the beneficial effects of the present invention are: passing through spy when the magnitude of current that electromagnetism casing generates is excessive
Some conduct current device cylinders are worked in coordination with ground connection frid, and internal sensor can be kept away with ground line by electric current to separating on the ground
Exempt from the damage of mutual inductor pipe, and then influences internal components, while when inner tank temperature is higher, it, will using distinctive cushion hole
The air pressure that inner tank high temperature generates is extended outward by airbag casing pipe, reduces internal pressure, and then sealing ring is protected not damaged
It is bad, the case where preventing oil leak, while fuel tank being protected dilatancy do not occur, use is safer.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is a kind of surface structure signal of the capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type of the present invention
Figure.
Fig. 2 is the schematic diagram of the section structure of the compound body of fuel tank of the present invention.
Fig. 3 is the structural schematic diagram of tank mounting of the present invention.
Fig. 4 is the overlooking structure diagram of present invention carrying tube body.
Fig. 5 is the structural schematic diagram of pressurized seal disk of the present invention.
Fig. 6 is the schematic diagram of the section structure of cushion hole of the present invention.
In figure: the compound body -1 of fuel tank, lower section capacitive divider -2, terminal board -3, support mobile jib -4, upper economize on electricity are held
Divider -5, electromagnetic unit -6, output connection slot -7, tank mounting-a, magnetic screen sleeve-b, lifting porose disc-c, ground connection frid -
D, oil level inspection hole-e, carrying tube body-a1, liquid level side pipe-a2, conduct current device cylinder-a3, electromagnetism casing-a4, mutual inductor pipe-
A11, pressurized seal disk-a12, fuel tank-a13, protection pipe-a14, sealing ring upper cover-a121, cushion hole-a122, seal compression
Layer-a123, airbag casing pipe-a1221, outer retainer plate-a1222.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to
Specific embodiment, the present invention is further explained.
Fig. 1-Fig. 6 is please referred to, the present invention provides a kind of capacitance type potential transformer device skill of anti-oil leakage protection of pressure-releasing type
Art scheme: its structure includes: the compound body 1 of fuel tank, lower section capacitive divider 2, terminal board 3, support mobile jib 4, upper economize on electricity
Hold divider 5, electromagnetic unit 6, output connection slot 7, the compound body 1 of fuel tank is installed on 6 lower section of electromagnetic unit and and electromagnetism
6 snapping of unit is equipped with output connection slot 7 below the electromagnetic unit 6 and is electrically connected with output connection slot 7, the electromagnetic unit 6
Top be equipped with support mobile jib 4 and with support 4 interlocking of mobile jib, 4 top of support mobile jib is equipped with terminal board 3 and and terminals
3 interlocking of daughter board, upper section capacitive divider 5 is equipped with below the terminal board 3, and the upper section capacitive divider 5 is installed on down
2 top of capacitive divider is saved, the compound body 1 of fuel tank includes tank mounting a, magnetic screen sleeve b, lifting porose disc c, ground slot
Plate d, oil level inspection hole e, the magnetic screen sleeve b be installed on the outside of tank mounting a and with tank mounting a snapping, the fuel tank
Be equipped with ground connection frid d below device a, the side the tank mounting a be equipped with oil level inspection hole e and with oil level inspection hole e interlocking, institute
State ground connection frid d on the outside of be equipped with lifting porose disc c and with lifting porose disc c snapping.
The tank mounting a includes carrying tube body a1, liquid level side pipe a2, conduct current device cylinder a3, electromagnetism casing a4, described
Liquid level side pipe a2 is embedded in the carrying side tube body a1, below the carrying tube body a1 equipped with electromagnetism casing a4 and with electromagnetism casing a4
Snapping, the electromagnetism casing a4 are installed on above conduct current device cylinder a3, and ground slot is equipped with below the conduct current device cylinder a3
Plate d and with ground connection frid d snapping, be equipped with oil level inspection hole e on the outside of the liquid level side pipe a2, the tank mounting a passes through electric current
Guider cylinder a3 can disperse the super-high-current of electromagnetism casing a4 generation, and then protect the structure safety of mutual inductor pipe a11.
The carrying tube body a1 includes mutual inductor pipe a11, pressurized seal disk a12, fuel tank a13, protection pipe a14, the oil
Be equipped with above case a13 pressurized seal disk a12 and with pressurized seal disk a12 clearance fit, be equipped with mutual inductor on the outside of the fuel tank a13
Pipe a11 and be socketed with mutual inductor pipe a11, be equipped on the outside of the mutual inductor pipe a11 protection pipe a14 and with protection pipe a14 snapping, institute
Liquid level side pipe a2 is stated set on the left end protection pipe a14, the fuel tank a13 is up-narrow and down-wide structure, and the carrying tube body a1 passes through gas
Densification closing disk a12 plays the oil-leakage-prevention sealing function for fuel tank a13, while avoiding the high compression swelling of high temperature bring.
The pressurized seal disk a12 includes sealing ring upper cover a121, cushion hole a122, seal compression layer a123, described slow
Punching a122 is set to the periphery seal compression layer a123 and with seal compression layer a123 in connection, the seal compression layer a123
Side be equipped with sealing ring upper cover a121 and with sealing ring upper cover a121 snapping, the pressurized seal disk a12 by cushion hole a122 with
Seal compression layer a123 works in coordination, and then fuel tank a13 is made to be not easy the case where oil leak occur.
The cushion hole a122 includes airbag casing pipe a1221, outer retainer plate a1222, and the airbag casing pipe a1221 is installed on
On the inside of outer retainer plate a1222 and with outer retainer plate a1222 clearance fit, the cushion hole a122 is special by airbag casing pipe a1221
The mutual set type structure having enables and reduces internal pressure when fuel tank a13 high temperature.
The method is mainly characterized in that: user can be by connecting corresponding electric power with output connection slot 7 for terminal board 3
Route can cooperate liquid level side pipe a2 to observe the oil level situation inside fuel tank a13 by oil level inspection hole e, be convenient for maintenance inspection
It looks into, lifting porose disc c is used for the installation and displacement of cooperating equipment, and lower section capacitive divider 2 is with upper section capacitive divider 5 as main
Function device is divided, support mobile jib 4 is used as main support interface unit, in the course of work, when electromagnetism casing a4 generates biggish electricity
When stream, the sensor inside conduct current device cylinder a3 will be from the ground connection direction frid d by unwanted currents grounding, and then avoids
It's the problem of ambassador mutual inductor pipe a11 fever damage pasts electric current, and the magnetic screen sleeve b outside fuel tank a13 plays the work of a protection
With, when the high temperature that 6 magnetic flow of electromagnetic unit generates, will appear inside fuel tank a13 pressure increase the case where, at this time high pressure will
Airbag casing pipe a1221 squeezes extension along outer retainer plate a1222 upwards, and then plays the role of release, and then cooperates sealing
Circle upper cover a121 and seal compression layer a123 play the role of the seal protection for fuel tank a13, prevent the leakage of oil, and then protect
Carry tube body a1 and the structure safety of other electrical devices.
The present invention is combined with each other by above-mentioned component, is made equipment in use, passing through the fuel tank composite structure being equipped with, is made this
Invention, which can be realized, to be avoided when magnetic flow is uneven on mutual inductor, and magnetic flow will excessively lead to high temperature, and high temperature makes fuel tank
The gradually aging of interior sealing ring causes the expansion of fuel tank box shell the case where oil leak occur, influences the normal work of mutual inductor, and work as
Electromagnetic sleeve loop current is easy to cause mutual inductor to generate heat when excessive, and then is greatly reduced voltage and causes device failure, makes
With not safe enough problem, equipment is made to effectively prevent the appearance of oil leak and the structure safety of mutual inductor.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention, for this field skill
For art personnel, it is clear that invention is not limited to the details of the above exemplary embodiments, and without departing substantially from spirit of the invention or
In the case where essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes that fall within the meaning and scope of the equivalent elements of the claims in the present invention
It is interior.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (6)
1. a kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type, structure include: the compound body of fuel tank (1),
It is lower section capacitive divider (2), terminal board (3), support mobile jib (4), upper section capacitive divider (5), electromagnetic unit (6), defeated
Connecting groove (7) out, the compound body of fuel tank (1) be installed below electromagnetic unit (6) and with electromagnetic unit (6) snapping, it is described
It is equipped with output connection slot (7) below electromagnetic unit (6) and is electrically connected with output connection slot (7), it is characterised in that:
Be equipped with above the electromagnetic unit (6) support mobile jib (4) and with support mobile jib (4) interlocking, support mobile jib (4) top
Equipped with terminal board (3) and with terminal board (3) interlocking, be equipped with upper section capacitance partial pressure below the terminal board (3)
Device (5), the upper section capacitive divider (5) are installed on above lower section capacitive divider (2)；
The compound body of fuel tank (1) include tank mounting (a), magnetic screen sleeve (b), lifting porose disc (c), ground connection frid (d),
Oil level inspection hole (e), the magnetic screen sleeve (b) be installed on the outside of tank mounting (a) and with tank mounting (a) snapping, it is described
Ground connection frid (d) is equipped with below tank mounting (a), tank mounting (a) side is equipped with oil level inspection hole (e) and regards with oil level
Examine window (e) interlocking, be equipped on the outside of the ground connection frid (d) lifting porose disc (c) and with lifting porose disc (c) snapping.
2. a kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type according to claim 1, feature exist
In: the tank mounting (a) includes carrying tube body (a1), liquid level side pipe (a2), conduct current device cylinder (a3), electromagnetism casing
(a4), the liquid level side pipe (a2) is embedded in carrying side tube body (a1), is equipped with electromagnetism casing below the carrying tube body (a1)
(a4) and with electromagnetism casing (a4) snapping, the electromagnetism casing (a4) is installed on above conduct current device cylinder (a3).
3. a kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type according to claim 2, feature exist
In: the carrying tube body (a1) includes mutual inductor pipe (a11), pressurized seal disk (a12), fuel tank (a13), protection pipe (a14), institute
State be equipped with above fuel tank (a13) pressurized seal disk (a12) and with pressurized seal disk (a12) clearance fit, the fuel tank (a13) is outside
Side is equipped with mutual inductor pipe (a11) and is socketed with mutual inductor pipe (a11), is equipped with protection pipe (a14) on the outside of the mutual inductor pipe (a11)
And with protection pipe (a14) snapping, the liquid level side pipe (a2) be set to the left end protection pipe (a14).
4. a kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type according to claim 3, feature exist
In: the pressurized seal disk (a12) include sealing ring upper cover (a121), cushion hole (a122), seal compression layer (a123), it is described
Cushion hole (a122) is set to the periphery seal compression layer (a123) and with seal compression layer (a123) through connection, the seal compression
Sealing ring upper cover (a121) is equipped with above layer (a123).
5. a kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type according to claim 4, feature exist
In: the cushion hole (a122) includes airbag casing pipe (a1221), outer retainer plate (a1222), airbag casing pipe (a1221) peace
Loaded on the inside of outer retainer plate (a1222) and with outer retainer plate (a1222) clearance fit.
6. a kind of capacitance type potential transformer device of the anti-oil leakage protection of pressure-releasing type according to claim 1, feature exist
In: it is equipped with multiple groups inside the ground connection frid (d) and is grounded, the airbag casing pipe (a1221) is empty set direct type structure in multilayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606147.XA CN109545513B (en) | 2018-12-27 | 2018-12-27 | Pressure relief type oil leakage prevention capacitive voltage transformer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606147.XA CN109545513B (en) | 2018-12-27 | 2018-12-27 | Pressure relief type oil leakage prevention capacitive voltage transformer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109545513A true CN109545513A (en) | 2019-03-29 |
| CN109545513B CN109545513B (en) | 2020-12-15 |
Family
ID=65856761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811606147.XA Active CN109545513B (en) | 2018-12-27 | 2018-12-27 | Pressure relief type oil leakage prevention capacitive voltage transformer device |
Country Status (1)
| Country | Link |
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| CN (1) | CN109545513B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117594346A (en) * | 2023-11-03 | 2024-02-23 | 上海吴淞电气实业有限公司 | Voltage transformer based on clean air |
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| WO2001041273A1 (en) * | 1999-11-30 | 2001-06-07 | Siemens Aktiengesellschaft | Bushing insulator and bushing-type current transformer for metal-encapsulated, air-insulated medium voltage switchgears |
| JP2004170172A (en) * | 2002-11-19 | 2004-06-17 | Hokkei Industries Co Ltd | Electric field and magnetic field sensor |
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| CN206710485U (en) * | 2017-04-27 | 2017-12-05 | 天津君旺同达机电有限公司 | A kind of capacitance type potential transformer of the special oil-leakage-prevention of power equipment |
| CN206848343U (en) * | 2017-06-30 | 2018-01-05 | 中国西电电气股份有限公司 | A kind of voltage transformer of band support |
| CN108987049A (en) * | 2018-08-23 | 2018-12-11 | 云南农业大学 | A kind of capacitor voltage transformer of power construction oil-leakage-prevention |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11203993A (en) * | 1998-01-16 | 1999-07-30 | Mitsubishi Electric Corp | Circuit breaker |
| WO2001041273A1 (en) * | 1999-11-30 | 2001-06-07 | Siemens Aktiengesellschaft | Bushing insulator and bushing-type current transformer for metal-encapsulated, air-insulated medium voltage switchgears |
| JP2004170172A (en) * | 2002-11-19 | 2004-06-17 | Hokkei Industries Co Ltd | Electric field and magnetic field sensor |
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| CN105699727A (en) * | 2014-11-24 | 2016-06-22 | 国家电网公司 | Grading ring for equipotential shielding capacitor voltage transformer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117594346A (en) * | 2023-11-03 | 2024-02-23 | 上海吴淞电气实业有限公司 | Voltage transformer based on clean air |
| CN117594346B (en) * | 2023-11-03 | 2024-05-10 | 上海吴淞电气实业有限公司 | Voltage transformer based on clean air |
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| Publication number | Publication date |
|---|---|
| CN109545513B (en) | 2020-12-15 |
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Effective date of registration: 20201130 Address after: B07-01-21, 7th floor, block B, No. 705, Asia Pacific Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province Applicant after: Jiaxing Aoheng import and Export Co., Ltd Address before: Dandong Xiangshan County, Zhejiang province 315700 Ningbo city streets Jiang Village Applicant before: XIANGSHAN HONGQIANG ELECTRIC MANUFACTURING Co.,Ltd. |
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Address after: B07-01-21, 7th floor, block B, No. 705, Asia Pacific Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee after: Jiaxing aoteng Electronic Technology Co., Ltd Address before: B07-01-21, 7th floor, block B, No. 705, Asia Pacific Road, Daqiao Town, Nanhu District, Jiaxing City, Zhejiang Province Patentee before: Jiaxing Aoheng import and Export Co., Ltd |