CN206295526U - A kind of electrokinetic cell bag with extinguishing device - Google Patents

A kind of electrokinetic cell bag with extinguishing device Download PDF

Info

Publication number
CN206295526U
CN206295526U CN201621090491.4U CN201621090491U CN206295526U CN 206295526 U CN206295526 U CN 206295526U CN 201621090491 U CN201621090491 U CN 201621090491U CN 206295526 U CN206295526 U CN 206295526U
Authority
CN
China
Prior art keywords
shower nozzle
extinguishing
extinguishing device
temperature
electrokinetic cell
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.)
Active
Application number
CN201621090491.4U
Other languages
Chinese (zh)
Inventor
池文茂
何竞波
李星彤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanyu Group JSCL
Original Assignee
Jangmen Idear Hanyu Electrical Joint Stock Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jangmen Idear Hanyu Electrical Joint Stock Co ltd filed Critical Jangmen Idear Hanyu Electrical Joint Stock Co ltd
Priority to CN201621090491.4U priority Critical patent/CN206295526U/en
Application granted granted Critical
Publication of CN206295526U publication Critical patent/CN206295526U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

A kind of electrokinetic cell bag with extinguishing device disclosed in the utility model, including the extinguishing device for being built-in with the casing of several battery modules He be placed on the casing, the extinguishing device includes extinguishing chemical storage tank, arranged along the tank surface and store tank connected pipeline and the multiple shower nozzles being distributed on the pipeline with the extinguishing chemical, the shower nozzle is through the casing and extends to box inside, when there is naked light in certain battery modules, temperature around the battery modules can rise rapidly, now temperature-sensitive glass tube is understood expanded by heating and is ruptured, band pressure extinguishing chemical quickly sprays from shower nozzle, extinguish naked light and battery bag is lowered the temperature, reach the effect of self-extinguishing, battery bag is avoided to cause vehicle on fire, ensure personal safety as well as the property safety.

Description

A kind of electrokinetic cell bag with extinguishing device
Technical field
The utility model is related to the electrokinetic cell of electric automobile or Hybrid Vehicle, especially a kind of band extinguishing device Electrokinetic cell bag.
Background technology
New-energy automobile in the market is mostly hybrid vehicle and pure electric automobile, particularly pure electric automobile, There is energy-efficient, clean environment firendly, government's encouragement and popularization energetically is obtained in recent years.But the peace that electric automobile is present Full hidden danger is that battery bag is easily caught fire, and even thermal runaway is easily caused when battery bag heat produces speed to be more than radiating rate, It is to trigger battery bag that leading cause of fire occurs so as to cause the further up of temperature, therefore the security of battery bag is asked Topic can not be ignored.
Existing electric automobile generally sets battery bag extinguishing device and realizes self-extinguishing to battery bag, but existing electricity Signal is gathered so as to obtain situation information on fire using sensor more than the bag extinguishing device of pond, by automatically controlled mode control piper valve or Shower nozzle spray fire extinguishing agent.Because the electric control elements such as sensor, magnetic valve easily receive influence of fire, there is the failure of electric control element, shadow Ring extinguishing device work.
Utility model content
In order to solve the problems, such as existing battery bag extinguishing device easily by influence of fire, one kind that the utility model is provided is without electricity Control the electrokinetic cell bag with extinguishing device of element.
To achieve these goals, the technical scheme that the utility model is used is:
A kind of electrokinetic cell bag with extinguishing device, including be built-in with the casing of several battery modules and be placed in the case Extinguishing device on body, the extinguishing device include extinguishing chemical storage tank, along the tank surface arrange and with the extinguishing chemical Tank connected pipeline and the multiple shower nozzles being distributed on the pipeline are stored, the shower nozzle is through the casing and extends to case Internal side, the shower nozzle is provided with temperature-sensitive self-starting mechanism, and after battery modules are on fire, temperature rises in battery bag, and temperature-sensitive is certainly Actuating mechanism is heated and shower nozzle is opened in self-starting, and such extinguishing chemical sprays into from shower nozzle battery modules on fire are carried out in battery bag Fire extinguishing.
Preferably, the temperature-sensitive self-starting mechanism is the temperature-sensitive glass tube for being placed in the shower nozzle nozzle, the temperature-sensitive glass Sealing shroud is provided between the spout of glass pipe and the shower nozzle, when battery bag is on fire, temperature-sensitive glass tube is understood expanded by heating and ruptured, So shower nozzle realizes that automatic spraying extinguishing chemical is put out a fire in the case of no temperature-sensitive glass blockage.
Further, the front end of the shower nozzle is provided with hollow out support, and the temperature-sensitive glass tube is fixed on institute by trip bolt State on hollow out support, specifically, one end of temperature-sensitive glass tube is fixed on the nozzle of shower nozzle, the other end is fixed by trip bolt On hollow out support.
Preferably, the casing is provided with dismountable upper lid, and the extinguishing device is arranged on the upper lid, the spray Head is fixedly connected with the upper lid, and the shower nozzle is fixed on lid, thus is avoided that shower nozzle occurs partially caused by the reasons such as collision Move and influence extinguishing effect.
Further, the shower nozzle is distributed in the top of each battery modules, and sealing is provided between the shower nozzle and the upper lid Pad, so, shower nozzle is distributed in the top of battery modules, and battery modules can be quickly sprayed at when extinguishing chemical sprays from shower nozzle On, be conducive to improving fire-fighting efficiency.
Preferably, the extinguishing chemical storage tank is provided with the pressure gauge for observing extinguishing chemical storage tank air pressure inside, adopts Pressure gauge can be mechanical, or electronic type, and electronic pressure meter may be connected to automobile main control unit, Initiative alarming can be realized during pressure anomaly.
Further, the extinguishing chemical storage tank is the flat tank body for being built-in with extinguishing chemical, flat tank body level peace The upper surface of lid is placed in, pipeline is drawn from the side wall of flat tank body, so advantageously reduces taking up room for battery bag.
The beneficial effects of the utility model:Electrokinetic cell bag of the present utility model, by being built-in with the case of battery modules Extinguishing device with automatic fire-extinguishing function is set on body, when certain battery modules occurs naked light, around the battery modules Temperature can rise rapidly, and now temperature-sensitive glass tube is understood expanded by heating and ruptured, and band pressure extinguishing chemical quickly sprays from shower nozzle, makes bright Fire extinguishes and battery bag is lowered the temperature, and reaches the effect of self-extinguishing, it is to avoid battery bag causes vehicle on fire, ensures personal property peace Entirely.
Brief description of the drawings
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is the dimensional structure diagram of electrokinetic cell bag of the present utility model;
Fig. 2 is the overlooking the structure diagram of electrokinetic cell bag of the present utility model;
Fig. 3 is the internal structure schematic diagram of electrokinetic cell bag of the present utility model;
Fig. 4 is A-A directional profile structural representations in Fig. 2;
Fig. 5 is B-B directional profile structural representations in Fig. 2;
Fig. 6 is the mplifying structure schematic diagram at C in Fig. 4;
Fig. 7 is the structural representation of extinguishing device in the utility model.
Specific embodiment
To describe technology contents of the present utility model, structural feature, the objects and the effects in detail, below in conjunction with implementation Mode simultaneously coordinates accompanying drawing to be explained in detail.
Referring to Fig. 1,2 and 3, a kind of electrokinetic cell bag with extinguishing device, including the case for being built-in with several battery modules 6 Body 2 and the extinguishing device being placed on the casing 2, the extinguishing device is including extinguishing chemical storage tank 3, along the surface of the casing 2 Arrange and the pipeline 4 being connected with the extinguishing chemical storage tank 3 and the multiple shower nozzles 5 being distributed on the pipeline 4, according to casing The quantity of battery modules 6 sets the length of pipeline 4 and the number of shower nozzle 5 in 2, and the shower nozzle 5 is through the casing 2 and extends to The inner side of casing 2, the shower nozzle 5 is provided with temperature-sensitive self-starting mechanism, wherein, when there is fire in electrokinetic cell, temperature-sensitive self-starting Mechanism can be heated and shower nozzle 5 is opened in self-starting, and such extinguishing chemical 8 sprays into enter battery modules 6 on fire in battery bag from shower nozzle 5 Row fire extinguishing.
Referring to Fig. 4, in the embodiment, the temperature-sensitive self-starting mechanism is the temperature-sensitive glass for being placed in the nozzle of the shower nozzle 5 Pipe 11, is provided with sealing shroud 10 between the temperature-sensitive glass tube 11 and the spout of the shower nozzle 5, the temperature-sensitive glass tube 11 of use has The advantages of response sensitive, safe and reliable, easy for installation, temperature-sensitive high precision and relatively low cost, it is applied to rapid response sprinkler 5.When When battery modules 6 are on fire, temperature rises in electrokinetic cell bag, and the temperature-sensitive glass tube 11 of near heating sources is understood expanded by heating and ruptured, Now, temperature-sensitive glass tube 11 cannot block shower nozzle 5 because of rupture, and extinguishing chemical 8 is injected to dynamic under inside and outside differential pressure driving from shower nozzle 5 In power battery bag, battery modules 6 on fire are put out a fire, realize the function of self-extinguishing.
Referring to Fig. 6, in order to install fixed temperature-sensitive glass tube 11, hollow out support 9, the temperature-sensitive are set in the front end of shower nozzle 5 Glass tube 11 is fixed on the hollow out support 9 by trip bolt 12, specifically, one end of temperature-sensitive glass tube 11 is fixed on spray First 5 nozzle, the other end is fixed on hollow out support 9 by trip bolt 12, can effectively be discharged using hollow out support 9 and gone out Fiery agent 8, certainly, the utility model is not limited to the structure of hollow out support 9 shown in the drawings, and hollow out effect is realized with identical means Protection domain of the present utility model should all be belonged to.
In the present embodiment, the casing 2 is provided with removably upper lid 1, and the battery modules 6 are placed in casing 2, institute State the top that lid 1 is covered in battery modules 6, the extinguishing device is arranged on the upper lid 1, the shower nozzle 5 with it is described on Lid 1 is fixedly connected, specifically, as described in Figure 5, extinguishing chemical storage tank 3 is arranged on the medium position of the upper surface of upper lid 1, its raising middle flask The pillar 14 for supporting extinguishing chemical storage tank 3 is provided with body 2, the pillar 14 is located at the bottom of extinguishing chemical storage tank 3, pipeline 4 Drawn from the both sides of extinguishing chemical storage tank 3 respectively, i.e., a pipeline 4 is drawn per side, pipeline 4 is laid along the upper surface of upper lid 1.For Make the structure of pipeline 4 more firm, the pipeline 4 of both sides is fastened on lid 1 by fixing bolt 15 respectively.Shower nozzle 5 is passed through Upper lid 1 and clamping are fixed in lid 1, sound construction stabilization, thus be avoided that caused by the reasons such as collision shower nozzle 5 shift and Influence extinguishing effect.
Further, the battery modules 6 in the casing 2 are evenly distributed, and the correspondence of the shower nozzle 5 is distributed in each battery modules 6 Top, i.e. the top of each battery modules 6 is each equipped with a shower nozzle 5 and corresponds, when extinguishing chemical 8 sprays from shower nozzle 5 When can quickly be sprayed in battery modules 6, be conducive to improve fire-fighting efficiency.It is provided with close between the shower nozzle 5 and the upper lid 1 Packing 13, sealing gasket 13 plays fastening and sealing function, makes the connection more close and firm of shower nozzle 5 and upper lid 1.In the embodiment, Battery modules 6 are made up of the connection of multiple cells, specifically, cell is cylindrical cell, it is single in each battery modules 6 Body battery Vertical Uniform is arranged and upper and lower ends are fixedly clamped using clamping plate, and clamping plate is provided with through hole corresponding with cell, When certain cell is on fire in battery modules 6, extinguishing chemical 8 can rapidly spray covering to whole battery modules 6, make on fire Cell can timely be put out.
Referring to Fig. 7, in the present embodiment, the extinguishing chemical storage tank 3 is provided with for observing the inside gas of extinguishing chemical storage tank 3 The pressure gauge 7 of pressure, the pressure gauge 7 of use can be mechanical, or electronic type, and electronic pressure meter 7 can be connected To automobile main control unit, initiative alarming can be realized in pressure anomaly.The extinguishing chemical storage tank 3 that the embodiment is used is for built-in There is the flat tank body of extinguishing chemical 8, in the upper surface of upper lid 1, pipeline 4 is from flat tank body for the flat tank body horizontal setting Side wall is drawn, meanwhile, battery modules 6 are also to be arranged using tile mode, and such electrokinetic cell bag is overall more flat, are reduced dynamic Taking up room for power battery bag, installs more convenient.
The above, simply preferred embodiment of the present utility model, the utility model is not limited to above-mentioned implementation The structure of mode, as long as it reaches technique effect of the present utility model with identical means, should all belong to guarantor of the present utility model Shield scope.

Claims (7)

1. a kind of electrokinetic cell bag with extinguishing device, including be built-in with the casing of several battery modules and be placed in the casing On extinguishing device, it is characterised in that:The extinguishing device include extinguishing chemical storage tank, along the tank surface arrange and with institute State extinguishing chemical and store tank connected pipeline and the multiple shower nozzles being distributed on the pipeline, the shower nozzle passes through the casing simultaneously Box inside is extended to, the shower nozzle is provided with temperature-sensitive self-starting mechanism.
2. the electrokinetic cell bag with extinguishing device according to claim 1, it is characterised in that:The temperature-sensitive self-starting mechanism To be placed in the temperature-sensitive glass tube of the shower nozzle nozzle, sealing is provided between the temperature-sensitive glass tube and the spout of the shower nozzle Set.
3. the electrokinetic cell bag with extinguishing device according to claim 2, it is characterised in that:The front end of the shower nozzle is provided with Hollow out support, the temperature-sensitive glass tube is fixed on the hollow out support by trip bolt.
4. according to any described electrokinetic cell bags with extinguishing device of claim 1-3, it is characterised in that:Set on the casing There is dismountable upper lid, the extinguishing device is arranged on the upper lid, the shower nozzle is fixedly connected with the upper lid.
5. the electrokinetic cell bag with extinguishing device according to claim 4, it is characterised in that:The shower nozzle is distributed in each electricity The top of pond module, sealing gasket is provided between the shower nozzle and the upper lid.
6. according to the electrokinetic cell bag with extinguishing device that one of claim 1-3 is described, it is characterised in that:The extinguishing chemical is deposited Storage tank is provided with the pressure gauge for observing extinguishing chemical storage tank air pressure inside.
7. the electrokinetic cell bag with extinguishing device according to claim 6, it is characterised in that:The extinguishing chemical storage tank is It is built-in with the flat tank body of extinguishing chemical.
CN201621090491.4U 2016-09-28 2016-09-28 A kind of electrokinetic cell bag with extinguishing device Active CN206295526U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621090491.4U CN206295526U (en) 2016-09-28 2016-09-28 A kind of electrokinetic cell bag with extinguishing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621090491.4U CN206295526U (en) 2016-09-28 2016-09-28 A kind of electrokinetic cell bag with extinguishing device

Publications (1)

Publication Number Publication Date
CN206295526U true CN206295526U (en) 2017-07-04

Family

ID=59202198

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201621090491.4U Active CN206295526U (en) 2016-09-28 2016-09-28 A kind of electrokinetic cell bag with extinguishing device

Country Status (1)

Country Link
CN (1) CN206295526U (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107342441A (en) * 2017-07-05 2017-11-10 安徽统凌科技新能源有限公司 A kind of battery safety protection device
CN107349543A (en) * 2017-07-31 2017-11-17 福建中资新能源动力制造有限公司 The extinguishing method of electrokinetic cell extinguishing device, electrokinetic cell and electrokinetic cell
CN108346762A (en) * 2018-02-10 2018-07-31 佛山市建金建电子科技有限公司 A kind of fire-proof and explosion-proof battery pack of electric vehicle
CN110690530A (en) * 2019-10-14 2020-01-14 东软睿驰汽车技术(沈阳)有限公司 Safety device and power battery
CN112072046A (en) * 2020-10-19 2020-12-11 江苏时代新能源科技有限公司 Battery, electric device, method and equipment for preparing battery
CN112891786A (en) * 2021-02-11 2021-06-04 北京工业大学 Discernment electric automobile lithium ion battery high temperature situation and accurate extinguishing device
KR20220003465A (en) * 2020-07-01 2022-01-10 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 Traction battery device with extinguishing apparatus
CN113948807A (en) * 2020-07-16 2022-01-18 哲弗智能系统(上海)有限公司 Battery pack with intelligent fixed-point fire extinguishing function
WO2022012453A1 (en) * 2020-07-16 2022-01-20 哲弗智能系统(上海)有限公司 Smart heat-triggered fire extinguishing apparatus and method, battery pack, energy storage system, and vehicle
WO2022012461A1 (en) * 2020-07-16 2022-01-20 哲弗智能系统(上海)有限公司 Battery pack fire extinguishing system
CN114670704A (en) * 2021-01-29 2022-06-28 北京新能源汽车股份有限公司 Control method and device of power battery pack and electric automobile
CN114796935A (en) * 2022-03-31 2022-07-29 江西新威动力能源科技有限公司 Self-extinguishing power battery
JP2022536482A (en) * 2020-03-04 2022-08-17 エルジー エナジー ソリューション リミテッド Battery modules, battery racks containing same and power storage devices containing battery racks
CN115693475A (en) * 2023-01-03 2023-02-03 常州德众新能源有限公司 Electric integrated distribution control cabinet

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107342441A (en) * 2017-07-05 2017-11-10 安徽统凌科技新能源有限公司 A kind of battery safety protection device
CN107349543A (en) * 2017-07-31 2017-11-17 福建中资新能源动力制造有限公司 The extinguishing method of electrokinetic cell extinguishing device, electrokinetic cell and electrokinetic cell
CN108346762A (en) * 2018-02-10 2018-07-31 佛山市建金建电子科技有限公司 A kind of fire-proof and explosion-proof battery pack of electric vehicle
CN108346762B (en) * 2018-02-10 2020-12-08 昆山艾雷尔精密机械有限公司 Fireproof and explosion-proof battery pack for electric automobile
CN110690530A (en) * 2019-10-14 2020-01-14 东软睿驰汽车技术(沈阳)有限公司 Safety device and power battery
JP7453257B2 (en) 2020-03-04 2024-03-19 エルジー エナジー ソリューション リミテッド A battery module, a battery rack including the battery module, and a power storage device including the battery rack
JP2022536482A (en) * 2020-03-04 2022-08-17 エルジー エナジー ソリューション リミテッド Battery modules, battery racks containing same and power storage devices containing battery racks
CN113952652A (en) * 2020-07-01 2022-01-21 保时捷股份公司 Traction battery device with fire extinguishing device
KR102624326B1 (en) * 2020-07-01 2024-01-15 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 Traction battery device with extinguishing apparatus
KR20220003465A (en) * 2020-07-01 2022-01-10 독터. 인제니어. 하.체. 에프. 포르쉐 악티엔게젤샤프트 Traction battery device with extinguishing apparatus
CN113948807B (en) * 2020-07-16 2022-10-11 哲弗智能系统(上海)有限公司 Battery pack with intelligent fixed-point fire extinguishing function
WO2022012461A1 (en) * 2020-07-16 2022-01-20 哲弗智能系统(上海)有限公司 Battery pack fire extinguishing system
WO2022012453A1 (en) * 2020-07-16 2022-01-20 哲弗智能系统(上海)有限公司 Smart heat-triggered fire extinguishing apparatus and method, battery pack, energy storage system, and vehicle
CN113948807A (en) * 2020-07-16 2022-01-18 哲弗智能系统(上海)有限公司 Battery pack with intelligent fixed-point fire extinguishing function
CN112072046B (en) * 2020-10-19 2022-12-27 江苏时代新能源科技有限公司 Battery, electric device, method and equipment for preparing battery
CN112072046A (en) * 2020-10-19 2020-12-11 江苏时代新能源科技有限公司 Battery, electric device, method and equipment for preparing battery
CN114670704A (en) * 2021-01-29 2022-06-28 北京新能源汽车股份有限公司 Control method and device of power battery pack and electric automobile
CN112891786A (en) * 2021-02-11 2021-06-04 北京工业大学 Discernment electric automobile lithium ion battery high temperature situation and accurate extinguishing device
CN114796935A (en) * 2022-03-31 2022-07-29 江西新威动力能源科技有限公司 Self-extinguishing power battery
CN114796935B (en) * 2022-03-31 2023-02-17 江西新威动力能源科技有限公司 Self-extinguishing power battery
CN115693475A (en) * 2023-01-03 2023-02-03 常州德众新能源有限公司 Electric integrated distribution control cabinet
CN115693475B (en) * 2023-01-03 2023-03-21 常州德众新能源有限公司 Electric integrated power distribution control cabinet

Similar Documents

Publication Publication Date Title
CN206295526U (en) A kind of electrokinetic cell bag with extinguishing device
CN104001297B (en) A kind of lithium ion battery fire-fighting experiment cabinet carrying automatic alarm and fire extinguishing system
CN206295523U (en) A kind of automatic detection and the electrokinetic cell bag put out a fire
CN205069780U (en) Take extinguishing device's lithium ion battery group
CN206192964U (en) Power lithium cell conflagration test device that puts out a fire
CN206134872U (en) Battery and have its vehicle
CN206236353U (en) A kind of lithium ion battery thermal runaway experimental provision
CN205994913U (en) A kind of solid charging garage
KR101253728B1 (en) Fire-extinguisher installed to outer wall of building and install structure of the same
CN207910249U (en) A kind of power distribution cabinet door with fire-extinguishing function concurrently
CN105080008A (en) Fire trace tube type automatic nanometer powder-based dry powder fire extinguishing device
CN109113538A (en) A kind of fire door self-closing type
CN206964917U (en) A kind of battery chamber's automatic fire extinguisher
CN202028088U (en) Flue fire preventing and extinguishing device and circuit control system thereof
CN109585735A (en) A kind of energy storage container
CN114300773A (en) Automatic protection system of lithium battery energy storage cabinet
CN212673885U (en) Cooling tower with fire-fighting spraying equipment
CN209325406U (en) A kind of intelligent portable special gas safe transport cabinet
CN203842219U (en) Equipment cabinet gas fire extinguisher
CN207876488U (en) One kind is with balance external and internal pressure equipment two-layer compound oil tank
CN209378369U (en) A kind of self-extinguishing induction driving circuit
CN206499802U (en) A kind of non-reservoir pressure sustained release ejection-type suspended type ultrafine dry powder extinguishing installation
CN205055265U (en) Tubular nano powder backbone powder automatic fire extinguishing device is visited to fire
CN203017612U (en) Fire-fighting fire-extinguishing device for passenger car
CN110575639A (en) Hidden danger invasion preventing device of refueling system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen

Patentee after: Hanyu Group Co., Ltd.

Address before: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen

Patentee before: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd.

CP01 Change in the name or title of a patent holder