CN110030755A - A kind of battery pack carbon dioxide refrigerating system - Google Patents
A kind of battery pack carbon dioxide refrigerating system Download PDFInfo
- Publication number
- CN110030755A CN110030755A CN201910436692.7A CN201910436692A CN110030755A CN 110030755 A CN110030755 A CN 110030755A CN 201910436692 A CN201910436692 A CN 201910436692A CN 110030755 A CN110030755 A CN 110030755A
- Authority
- CN
- China
- Prior art keywords
- carbon dioxide
- pipeline
- battery pack
- refrigerating system
- fire extinguishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B40/00—Subcoolers, desuperheaters or superheaters
- F25B40/06—Superheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2309/00—Gas cycle refrigeration machines
- F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Public Health (AREA)
- Secondary Cells (AREA)
Abstract
Present invention discloses a kind of battery pack carbon dioxide refrigerating systems, it includes evaporator, the cooler of circulation loop is formed by the first pipeline and the second piping connection with the evaporator, compressor on first pipeline is set, expansion valve on second pipeline is set, and the refrigerant in the circulation loop that circulates, the refrigerant is carbon dioxide coolant, outlet side on second pipeline positioned at the expansion valve is provided with a branched pipe, a buffering accumulated energy tank is provided on the branched pipe, the outlet side of the buffering accumulated energy tank is provided with a fire extinguishing solenoid valve.The present invention greatly reduces the possibility of leakage, improves the reliability of system, makes simple and at low cost.
Description
Technical field
The invention belongs to battery pack cooling technology fields, more particularly to a kind of battery pack carbon dioxide refrigerating system.
Background technique
In recent years it with the development of new-energy automobile industry, needs to consider work safety as power unit using lithium battery pack
Property problem.For lithium battery pack, heat can persistently be generated in inside by continuing working, and needed cooling back installation and cooled down to it.
Way currently on the market is using motor vehicle antifreeze fluid as liquid medium, there is cooling coil inside battery pack, and circulating pump will Jie
Medium in matter case is pumped into cooling coil and returns again to medium box, is controlled using steam compression type refrigeration circulator to medium box
Temperature.
The shortcoming of the above way is that system is relatively complicated, needs intermediate liquid medium circulation indirect heat transfer, and
Liquid medium without phase-change, only leans on different transfer of heat, therefore heat exchanger area demand is larger, is unfavorable for mobile unit in battery pack
Small compact design；Furthermore it under the dangerous situation that battery pack has urgent temperature rise, can not take safety measures in time.
Therefore, it is necessary to provide the new battery pack carbon dioxide refrigerating system of one kind to solve the above problems.
Summary of the invention
The main purpose of the present invention is to provide a kind of battery pack carbon dioxide refrigerating systems, can be in lesser equipment volume
Lower realize cools down to battery pack, and has the function of instant fire extinguishment.
The present invention is achieved through the following technical solutions above-mentioned purpose: a kind of battery pack carbon dioxide refrigerating system comprising
Evaporator forms the cooler of circulation loop by the first pipeline and the second piping connection with the evaporator, is arranged described
Compressor on first pipeline, the expansion valve being arranged on second pipeline and the system in the circulation loop that circulates
Cryogen, the refrigerant are carbon dioxide coolant, and the outlet side that the expansion valve is located on second pipeline is provided with one
Branched pipe is provided with a buffering accumulated energy tank on the branched pipe, and the outlet side of the buffering accumulated energy tank is provided with a fire extinguishing electromagnetism
Valve.
Further, the input side on first pipeline positioned at the compressor is respectively arranged with oil with outlet side and separates
Device, liquid storage device.
Further, one section both passes through inside same regenerator on first pipeline and second pipeline.
Further, the end of the branched pipe is arranged towards battery pack installation space inside.
Further, the fire extinguishing solenoid valve is controlled by a controller, according to fire extinguishing instruction action, when generation emergency
When needing to put out a fire, the carbon dioxide in system is ejected into target area as firing-fighting medium and puts out a fire.
Compared with prior art, a kind of beneficial effect of battery pack carbon dioxide refrigerating system of the present invention is: refrigeration machine
Group is compact to design, and structure is simple；Using carbon dioxide as refrigerant, and heat is carried out in condenser end using refrigerant and is released
It puts, in the process of evaporator end progress heat absorption, cools down to the inside of battery pack, improve cooling effect and cooling is imitated
Rate；Regenerator is set in refrigerating circulation, realizes internal automatic heat transfer with heat release need complementarity using the heat absorption on pipeline,
Heat transfer temperature difference is reduced, so that compressor is more energy saving；In the one fire extinguishing solenoid valve of outlet side setting of expansion valve, so that titanium dioxide
Carbon as refrigerant while using, the characteristics of having taken into account extinguishing chemical, can in case of emergency use as firing-fighting medium,
When fire occurring inside battery pack, it can timely play the role of fire extinguishing, timely prevent the sprawling of fire, improved battery
Wrap the safety used.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Digital representation in figure:
1 evaporator；2 first pipelines；3 second pipelines；4 coolers；5 compressors；6 expansion valves；7 oil eliminators；8 liquid storage devices；9 times
Hot device；10 branched pipes；11 buffering accumulated energy tanks；12 fire extinguishing solenoid valves.
Specific embodiment
Embodiment:
Fig. 1 is please referred to, the present embodiment is battery pack carbon dioxide refrigerating system 100 comprising evaporator 1 passes through with evaporator 1
First pipeline 2 and the connection of the second pipeline 3 form the cooler 4, the compressor 5 being arranged on the first pipeline 2, setting of circulation loop
Expansion valve 6 on the second pipeline 3 and the refrigerant in the circulation loop that circulates.
The refrigerant is carbon dioxide coolant.
Oil eliminator 7, liquid storage device 8 are respectively arranged with positioned at the input side of compressor 5 and outlet side on first pipeline 2.Storage
The effect of liquid device 8 is to play gas liquid separating function, prevents liquid refrigerant from returning to compressor 5, avoids compressor liquid hammer, protection pressure
The operational safety of contracting machine.
There is one section to both pass through inside same regenerator 9 on first pipeline 2 and the second pipeline 3.Pass through regenerator 9, sufficiently benefit
With the temperature difference inside the first pipeline 2 and the second pipeline 3, heat exchange is carried out by regenerator 9, improves efficiency, reduces power consumption,
So that the more economical power saving of whole system, is more applicable on new-energy automobile, there is larger effect for mileage continuation of the journey.
The outlet side that second pipeline 3 is located at expansion valve 6 is provided with a branched pipe 10, and it is slow that one is provided on the branched pipe 10
Energy storage canister 11 is rushed, the outlet side of buffering accumulated energy tank 11 is provided with a fire extinguishing solenoid valve 12.The end of branched pipe 10 is towards battery pack
Setting inside installation space.Fire extinguishing solenoid valve 12 is controlled by a controller, according to fire extinguishing instruction action, is needed when emergency occurs
When putting out a fire, the carbon dioxide in system is ejected into target area as firing-fighting medium and puts out a fire.
Evaporator 1 is pressed serpentine tube structure setting inside battery pack.Using carbon dioxide coolant in evaporator 1 by
Liquid is converted to gaseous state and needs to absorb a large amount of heat to cool down to battery pack internal temperature.
The present embodiment battery pack carbon dioxide refrigerating system 100 uses carbon dioxide as refrigerant, and utilizes refrigerant
Heat release is carried out, in the process of evaporator end progress heat absorption in condenser end, is cooled down to the inside of battery pack, is mentioned
High cooling effect and cooling efficiency；Regenerator is set in refrigerating circulation, utilizes the heat absorption and heat release demand on pipeline
Internal automatic heat transfer is realized in complementation, heat transfer temperature difference is reduced, so that compressor is more energy saving；It is arranged one in the outlet side of expansion valve
Fire extinguishing solenoid valve, so that the characteristics of carbon dioxide while using as refrigerant, has taken into account extinguishing chemical, it can be in emergency
It is lower to be used as firing-fighting medium, it when fire occurring inside battery pack, can timely play the role of fire extinguishing, timely prevent
The sprawling of fire improves the safety that battery pack uses.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (5)
1. a kind of battery pack carbon dioxide refrigerating system, it is characterised in that: it includes evaporator and the evaporator by first
Pipeline and the second piping connection form the cooler of circulation loop, the compressor being arranged on first pipeline, are arranged in institute
State the expansion valve on the second pipeline and the refrigerant in the circulation loop that circulates, the refrigerant is carbon dioxide system
Cryogen, the outlet side that the expansion valve is located on second pipeline are provided with a branched pipe, are provided with one on the branched pipe
Buffering accumulated energy tank, the outlet side of the buffering accumulated energy tank are provided with a fire extinguishing solenoid valve.
2. battery pack carbon dioxide refrigerating system as described in claim 1, it is characterised in that: be located at institute on first pipeline
It states the input side of compressor and outlet side is respectively arranged with oil eliminator, liquid storage device.
3. battery pack carbon dioxide refrigerating system as described in claim 1, it is characterised in that: first pipeline and described the
There is one section to both pass through inside same regenerator on two pipelines.
4. battery pack carbon dioxide refrigerating system as described in claim 1, it is characterised in that: the end direction of the branched pipe
Setting inside battery pack installation space.
5. battery pack carbon dioxide refrigerating system as described in claim 1, it is characterised in that: the fire extinguishing solenoid valve is by a control
Device control processed, according to fire extinguishing instruction action, when generation emergency needs to put out a fire, the carbon dioxide in system is situated between as fire extinguishing
Matter is ejected into target area and puts out a fire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910436692.7A CN110030755A (en) | 2019-05-23 | 2019-05-23 | A kind of battery pack carbon dioxide refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910436692.7A CN110030755A (en) | 2019-05-23 | 2019-05-23 | A kind of battery pack carbon dioxide refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110030755A true CN110030755A (en) | 2019-07-19 |
Family
ID=67243239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910436692.7A Pending CN110030755A (en) | 2019-05-23 | 2019-05-23 | A kind of battery pack carbon dioxide refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110030755A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141053A (en) * | 2019-12-10 | 2020-05-12 | 清华大学 | Forced circulation system of power battery pack based on two-phase flow heat transfer and control method |
| CN111167048A (en) * | 2020-01-20 | 2020-05-19 | 东风汽车集团有限公司 | Integrated vehicle-mounted automatic fire extinguishing system and method |
| CN112902485A (en) * | 2021-01-29 | 2021-06-04 | 浙江英诺绿能科技有限公司 | Dual-purpose system for refrigeration and fire fighting |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103779629A (en) * | 2014-01-22 | 2014-05-07 | 浙江吉利控股集团有限公司 | Battery cooling system having extinguishing function |
| CN103946043A (en) * | 2011-11-16 | 2014-07-23 | 丰田自动车株式会社 | Device for cooling electrical apparatus |
| CN104142033A (en) * | 2014-07-25 | 2014-11-12 | 北京市京科伦冷冻设备有限公司 | Carbon dioxide refrigeration device structure |
| CN203964432U (en) * | 2014-07-25 | 2014-11-26 | 北京市京科伦冷冻设备有限公司 | A kind of carbon dioxide refrigeration apparatus structure |
| CN104868194A (en) * | 2015-05-11 | 2015-08-26 | 广东亿纬赛恩斯新能源系统有限公司 | Battery cooling system and method |
| DE102014108993A1 (en) * | 2014-06-26 | 2015-12-31 | Valeo Klimasysteme Gmbh | Battery cooler system |
| CN106797061A (en) * | 2014-08-28 | 2017-05-31 | 橙力电池株式会社 | Energy-storage system |
| CN208460929U (en) * | 2018-08-21 | 2019-02-01 | 郑州新开元科技有限公司 | A kind of power battery box heat management device and the power battery vehicle containing the device |
| CN109489283A (en) * | 2018-11-20 | 2019-03-19 | 华霆（合肥）动力技术有限公司 | Battery pouring-basket cooling system and battery pack structure |
| CN110165329A (en) * | 2019-05-28 | 2019-08-23 | 中国科学院理化技术研究所 | A kind of power battery thermal management system |
| CN209926639U (en) * | 2019-05-23 | 2020-01-10 | 苏州奥德机械有限公司 | Battery package carbon dioxide refrigerating system |
-
2019
- 2019-05-23 CN CN201910436692.7A patent/CN110030755A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103946043A (en) * | 2011-11-16 | 2014-07-23 | 丰田自动车株式会社 | Device for cooling electrical apparatus |
| CN103779629A (en) * | 2014-01-22 | 2014-05-07 | 浙江吉利控股集团有限公司 | Battery cooling system having extinguishing function |
| DE102014108993A1 (en) * | 2014-06-26 | 2015-12-31 | Valeo Klimasysteme Gmbh | Battery cooler system |
| CN104142033A (en) * | 2014-07-25 | 2014-11-12 | 北京市京科伦冷冻设备有限公司 | Carbon dioxide refrigeration device structure |
| CN203964432U (en) * | 2014-07-25 | 2014-11-26 | 北京市京科伦冷冻设备有限公司 | A kind of carbon dioxide refrigeration apparatus structure |
| CN106797061A (en) * | 2014-08-28 | 2017-05-31 | 橙力电池株式会社 | Energy-storage system |
| CN104868194A (en) * | 2015-05-11 | 2015-08-26 | 广东亿纬赛恩斯新能源系统有限公司 | Battery cooling system and method |
| CN208460929U (en) * | 2018-08-21 | 2019-02-01 | 郑州新开元科技有限公司 | A kind of power battery box heat management device and the power battery vehicle containing the device |
| CN109489283A (en) * | 2018-11-20 | 2019-03-19 | 华霆（合肥）动力技术有限公司 | Battery pouring-basket cooling system and battery pack structure |
| CN209926639U (en) * | 2019-05-23 | 2020-01-10 | 苏州奥德机械有限公司 | Battery package carbon dioxide refrigerating system |
| CN110165329A (en) * | 2019-05-28 | 2019-08-23 | 中国科学院理化技术研究所 | A kind of power battery thermal management system |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141053A (en) * | 2019-12-10 | 2020-05-12 | 清华大学 | Forced circulation system of power battery pack based on two-phase flow heat transfer and control method |
| CN111141053B (en) * | 2019-12-10 | 2020-10-09 | 清华大学 | Forced circulation system of power battery pack based on two-phase flow heat transfer and control method |
| CN111167048A (en) * | 2020-01-20 | 2020-05-19 | 东风汽车集团有限公司 | Integrated vehicle-mounted automatic fire extinguishing system and method |
| CN112902485A (en) * | 2021-01-29 | 2021-06-04 | 浙江英诺绿能科技有限公司 | Dual-purpose system for refrigeration and fire fighting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110030755A (en) | A kind of battery pack carbon dioxide refrigerating system | |
| WO2022166392A8 (en) | Multistage-compression energy storage apparatus and method based on carbon dioxide gas-liquid phase change | |
| CN102997484A (en) | Metal hydride refrigerating device | |
| CN104142033A (en) | Carbon dioxide refrigeration device structure | |
| CN110802996A (en) | LNG air conditioner refrigerating system | |
| CN202216448U (en) | Diffusion absorption refrigeration and vapor compression refrigeration combined recycle system | |
| CN204555150U (en) | A kind of LNG Power Vessel air conditioner refrigerating/heating system | |
| CN102322705A (en) | Circulating device combining diffusing absorption-type refrigeration and vapor compression refrigeration | |
| JP2011080736A (en) | Heat exchange device | |
| CN204202062U (en) | With the water-cooled cooling water air conditioner unit of ice-reserving function | |
| CN107421173B (en) | Emergency refrigerating device and machine room air conditioner continuous refrigerating system | |
| CN210707846U (en) | Integrative air conditioning system of boats and ships changes in temperature | |
| CN209926639U (en) | Battery package carbon dioxide refrigerating system | |
| CN218328752U (en) | Cold-storage type evaporator | |
| CN201096428Y (en) | Superposition type refrigerating unit auxiliary device | |
| CN213090169U (en) | Mobile refrigeration system with liquid spraying path | |
| CN212033189U (en) | Hierarchical formula power battery liquid cooling system | |
| KR20080096904A (en) | Heat exchanger | |
| CN109823140A (en) | Automobile air conditioning refrigerating system and refrigerating method based on liquid hydrogen fuel cell | |
| CN209279282U (en) | Heat pipe manifold type air-conditioning | |
| CN110595108A (en) | Dual-purpose switching type heat pump unit for preventing freezing pipe | |
| CN112146300A (en) | Cooling unit serving great temperature difference change environment | |
| CN204693686U (en) | A kind of LNG cold energy retracting device | |
| CN215724551U (en) | Integrated cold box for liquid air energy storage system and liquid air energy storage system | |
| CN211650810U (en) | Liquid fluid cooling device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Room 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Suzhou Aode high end equipment Co.,Ltd. Address before: 215300 rooms 3 and 4, 228 Wulian Road, Yushan Town, Kunshan City, Suzhou City, Jiangsu Province Applicant before: SUZHOU AODE MACHINERY Co.,Ltd. |