CN206155082U - Battery cooling system of electric motor car - Google Patents
Battery cooling system of electric motor car Download PDFInfo
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- CN206155082U CN206155082U CN201621202104.1U CN201621202104U CN206155082U CN 206155082 U CN206155082 U CN 206155082U CN 201621202104 U CN201621202104 U CN 201621202104U CN 206155082 U CN206155082 U CN 206155082U
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- valve
- battery
- electric motor
- motor car
- cooling system
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- 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
Abstract
The utility model provides a battery cooling system of electric motor car, including battery pack, refrigeration subassembly and scattered heat -insulating material, the refrigeration subassembly through first pipeline with scattered heat -insulating material's import and export intercommunication, loose heat -insulating material with battery pack's surface contact. Refrigerate in to the carriage through the refrigeration subassembly, loose heat -insulating material and battery pack's surface contact, the cooling to the battery is realized through heat -insulating material and the battery pack heat transfer of loosing to the refrigeration subassembly. The utility model discloses need not parts such as low temperature water tank, water pipe, expansion tank, plate type evaporator, under the condition that does not influence carriage refrigeration and battery cooling, greatly reduced the weight of complete machine.
Description
Technical field
The utility model is related to battery cooling technology field, more particularly to a kind of battery cooling system of electric motor car.
Background technology
The battery cooling of the heat pump of electric motor car at present is more using the double condenser systems of double evaporations, and system is steamed all the way at summer
The system of sending out is exchanged heat by plate type heat exchanger or other heat exchangers with water route, then the water after cooling is passed through into electricity by water pump
In the pipeline of pond side, battery is cooled down；Winter is then exchanged heat by low temperature water tank with extraneous, then by the water after cooling by water pump
In the pipeline of system introducing battery side, battery is cooled down.But the system unit is various, needs to include water circuit system, steam
Heat exchanger, low temperature water tank system that system and water are exchanged heat are sent out, wherein water circuit system includes low temperature water tank, pipeline, swelling water
The larger part of the weight such as case, the subassembly of other systems is also more various, and weight is all than larger, so as to meet to electricity
The loss of weight of motor-car is required.
The Chinese patent of the A of Publication No. CN 104822550 proposes a kind of heat-pump type air-conditioner, and it has：It is electronic
Compressor, it is configured in the motor room of electric automobile；Condenser, it is configured in car room；And refrigerant discharge pipe, it will
The motor compressor and the condenser link, and make refrigerant flow to the condenser from the motor compressor, described
The half-way of refrigerant discharge pipe arranges pulsation and suppresses unit, and the pulsation suppresses unit to suppress what is discharged from the motor compressor
The pulsation of refrigerant, suppresses unit to configure in the vehicle up direction compared with the coolant outlet port of the motor compressor arteries and veins stream
Position, suppresses the refrigerant inflow entrance of unit to be set in compared with the refrigerant flow export that the arteries and veins stream suppresses unit the arteries and veins stream
Vehicle up direction position.
Comparatively main screw lift is less for above-mentioned heat-pump type air-conditioner, but the device is not accounted for the cold of battery
But, it is not suitable for the heat pump of battery car.
Utility model content
Technical problem to be solved in the utility model is：A kind of battery of the little electric motor car of simple structure, weight is provided
Cooling system.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is：
A kind of battery cooling system of electric motor car, including battery component, cooling assembly and radiating piece, the cooling assembly leads to
Cross the first pipeline to connect with the inlet and outlet of the radiating piece, the radiating piece is contacted with the surface of the battery component.
Further, the radiating piece be microchannel aluminium flat conduit, the cooling assembly include compressor, internal condensation device,
External condenser, evaporimeter and gas-liquid separator, the compressor, internal condensation device, external condenser, evaporimeter and gas-liquid point
Connected by second pipe successively head and the tail from device, the external condenser is connected by the 3rd pipeline with the gas-liquid separator,
The external condenser, microchannel aluminium flat conduit, gas-liquid separator are sequentially connected by the first pipeline, the internal condensation device, micro-
Passage aluminium flat conduit, gas-liquid separator are sequentially connected by the first pipeline.
Further, also including the first valve, the second valve, the 3rd valve and the 4th valve, first valve is located at
Between internal condensation device and external condenser, the 3rd valve is located between external condenser and evaporimeter, the 3rd valve
Door is also connected by the 3rd pipeline and gas-liquid separator, the 4th valve located at internal condensation device and microchannel aluminium flat conduit it
Between, second valve is located between internal condensation device and the 4th valve.
Further, also including first segment flow tube, the first segment flow tube and first valve in parallel.
Further, also including check valve, the 3rd valve and microchannel aluminium flat conduit respectively by the check valve with
Gas-liquid separator connects.
Further, also including the second throttle pipe, second throttle pipe is located between the 3rd valve and evaporimeter.
Further, also including cooling fan, the cooling fan is located at the side of the external condenser.
Further, also including pump, power component, motor and cooling water tank, divide on the power component and motor
Heat abstractor is not provided with, the heat abstractor of the pump, cooling water tank and power component is connected by the 4th pipeline successively head and the tail,
The heat abstractor of pump, cooling water tank and motor is connected by the 4th pipeline successively head and the tail, and the cooling water tank is close and is located at
The opposite side of the external condenser.
Further, also it is arranged at the steaming including air-conditioning heater and air blast, the air-conditioning heater and air blast
Send out the side of device.
Further, the surfaces of cell is provided with ptc heater.
The beneficial effects of the utility model are：By cooling assembly to refrigeration in compartment, radiating piece and battery component
Surface contacts, and cooling assembly is exchanged heat by radiating piece with battery component, realizes the cooling to battery.The utility model is without the need for low temperature
The parts such as water tank, waterway pipe, expansion tank, plate-type evaporator, in the case where not affecting chiller compartment and battery to cool down, pole
The earth reduces the weight of whole machine.
Description of the drawings
Fig. 1 is the attachment structure schematic diagram of the heat management system of the electric motor car of the utility model embodiment；
Fig. 2 is the attachment structure schematic diagram of the heat management system of the electric motor car of the utility model embodiment one.
Label declaration：
100th, battery component；200th, cooling assembly；300th, radiating piece；1st, compressor；2nd, internal condensation device；3rd, external condensation
Device；4th, evaporimeter；5th, gas-liquid separator；6th, the first valve；7th, the second valve；8th, the 3rd valve；9th, the 4th valve；10th, first
Throttle pipe；11st, check valve；12nd, the second throttle pipe；13rd, cooling fan；14th, pump；15th, power component；16th, motor；17th, dissipate
Boiler；18th, air-conditioning heater；19th, air blast；20th, expansion tank.
Specific embodiment
To describe technology contents of the present utility model, structural feature in detail, purpose and effect being realized, below in conjunction with enforcement
Mode simultaneously coordinates accompanying drawing to be explained in detail.
The design of the utility model most critical is：Refrigerating circuit is contacted by radiating piece with battery, and directly battery is entered
Row cooling.
Fig. 1 is referred to, the utility model provides a kind of battery cooling system of electric motor car, including battery component 100, refrigeration
Component 200 and radiating piece 300, the cooling assembly 200 is connected by the first pipeline with the inlet and outlet of the radiating piece 300
Logical, the radiating piece 300 is contacted with the surface of the battery component 100.
Knowable to foregoing description, the radiating piece can be arranged around the battery component, in may also extend through battery component
Between gap, for example, battery component includes multiple batteries, and radiating piece is located at gap between battery and battery.
Further, the radiating piece 300 is microchannel aluminium flat conduit, and the cooling assembly 200 includes compressor 1, inside
Condenser 2, external condenser 3, evaporimeter 4 and gas-liquid separator 5, the compressor 1, internal condensation device 2, external condenser 3,
Evaporimeter 4 and gas-liquid separator 5 are connected by second pipe successively head and the tail, and the external condenser 3 is by the 3rd pipeline and institute
State gas-liquid separator 5 to connect, the external condenser 3, microchannel aluminium flat conduit, gas-liquid separator 5 are connected successively by the first pipeline
Connect, the internal condensation device 2, microchannel aluminium flat conduit, gas-liquid separator 5 are sequentially connected by the first pipeline.
From the foregoing, the beneficial effects of the utility model are：Compressor, internal condensation device, external condenser, evaporation
Device, gas-liquid separator are connected by second pipe successively head and the tail, it is possible to achieve refrigeration in compartment and the switching for heating；It is outside cold
Condenser, microchannel aluminium flat conduit, gas-liquid separator are sequentially connected by the first pipeline, internal condensation device, microchannel aluminium flat conduit, gas-liquid
Separator is sequentially connected by the first pipeline, and microchannel aluminium flat conduit is contacted with battery, is contacted with battery by microchannel aluminium flat conduit,
Cold-producing medium in microchannel aluminium flat conduit is directly exchanged heat with battery, realizes the cooling to battery.
Further, also including the first valve 6, the second valve 7, the 3rd valve 8 and the 4th valve 9, first valve 6
Between internal condensation device 2 and external condenser 3, the 3rd valve 8 is located between external condenser 3 and evaporimeter 4, institute
State the 3rd valve 8 also to connect by the 3rd pipeline and gas-liquid separator 5, the 4th valve 9 is located at internal condensation device 2 and micro- logical
Between road aluminium flat conduit, second valve 7 is between the valve 9 of internal condensation device 2 and the 4th.
From the foregoing, by controlling the first valve, the second valve, the 3rd valve and the folding condition of the 4th valve, energy
Enough control systems realize different refrigerating modes, to tackle different environment.As summer closes on the first valve opening, the second valve
Close, the 3rd valve opening, the 4th valve opening, condensed using external condenser, evaporimeter is for environment temperature reduction and electricity in compartment
Pond cools down；And winter by the first valve closing, the second valve opening, the 3rd valve opening, the 4th valve opening, it is cold using inside
Condenser is condensed, and evaporimeter is cooled down for battery.
Further, also including first segment flow tube 10, the first segment flow tube 10 is in parallel with first valve 6.
Knowable to foregoing description, throttle pipe can control fluid flow by changing throttling section or chock length, arrange
First segment flow tube and the first valve in parallel, form easy flow control valve, realize Flow-rate adjustment.Except throttle pipe, it is also possible to
Using in prior art other can carry out throttle control device or device.Wherein, the first valve, the second valve are using common
Magnetic valve, the 3rd valve adopts triple valve, and external condenser is controlled out by the circulating direction of regulating three-way valve
Which loop of refrigerant flow direction, the 4th valve adopts electric expansion valve, reaches the purpose of flow control.
Further, also the check valve is passed through respectively including check valve 11, the 3rd valve 8 and microchannel aluminium flat conduit
11 are connected with gas-liquid separator 5.
Further, also including the second throttle pipe 12, second throttle pipe 12 located at the 3rd valve 8 and evaporimeter 4 it
Between.
Knowable to foregoing description, throttling action is realized by the second throttle pipe.
Further, also including cooling fan 13, the cooling fan 13 is located at the side of the external condenser 3.
Knowable to foregoing description, arranging cooling fan can reach the heat in air on external condenser, to improve system
Heat, reduces the possibility of external condenser frosting.
Further, also including pump 14, power component 15, motor 16 and cooling water tank 17, the He of the power component 15
Heat abstractor is respectively equipped with motor 16, the heat abstractor of the pump 14, cooling water tank 17 and power component 15 passes through the 4th
Successively head and the tail connect pipeline, and the heat abstractor of pump 14, cooling water tank 17 and motor 16 is connected by the 4th pipeline successively head and the tail,
The cooling water tank 17 near and be located at the external condenser 3 opposite side.
Knowable to foregoing description, motor and power component can be radiated by cooling water tank, then by cooling down wind
Heat in cooling water tank is reached external condenser by fan, to carry out the recovery of waste heat.
Further, also arrange including air-conditioning heater 18 and air blast 19, the air-conditioning heater 18 and air blast 19
In the side of the evaporimeter 4.
Knowable to foregoing description, when heating in compartment, when the temperature of setting differs greatly with vehicle interior temperature, drum can be started
Blower fan, control air-conditioning heater is heated.
Further, the surface of the battery component 100 is provided with ptc heater.
Knowable to foregoing description, when battery temperature is less than normal working temperature, battery can be entered using ptc heater
Row heating, makes battery temperature reach normal working temperature.The ptc heater can be the heating film made using PTC.
Fig. 2 is refer to, embodiment of the present utility model is：
A kind of battery cooling system of electric motor car, including battery component 100, cooling assembly 200 and microchannel aluminium flat conduit, institute
Cooling assembly 200 is stated including compressor 1, internal condensation device 2, external condenser 3, evaporimeter 4 and gas-liquid separator 5, the electricity
Pond cooling system also include the first valve, first segment flow tube, the second valve, cooling fan, the 3rd valve, the second throttle pipe, the
Four valves, check valve, air-conditioning heater, air blast, pump, power component, motor, cooling water tank and expansion tank, the work(
Heat abstractor is respectively equipped with rate element and motor；
The compressor 1, internal condensation device 2, first valve 6 in parallel and first segment flow tube 10, external condenser
3rd, the 3rd valve 8, the second throttle pipe 12, evaporimeter 4 and gas-liquid separator 5 are connected by second pipe successively head and the tail, form the
Primary Ioops；
Wherein, the external condenser 3 is connected by second pipe with the entrance of the 3rd valve 8, and the first of the 3rd valve 8
Outlet is connected by the first pipeline with first segment flow tube 10；
The second outlet of the 3rd valve 8 is connected by the 3rd pipeline with one end of check valve 11, check valve 11 it is another
One end is connected by the 3rd pipeline with gas-liquid separator 5, the compressor 1, internal condensation device 2, first valve 6 in parallel
With first segment flow tube 10, external condenser 3, the 3rd valve 8, check valve 11, the composition second servo loop of gas-liquid separator 5；
The external condenser 3, the 4th valve 9, microchannel aluminium flat conduit, check valve 11, gas-liquid separator 5 also pass through first
Pipeline is sequentially connected, compressor 1, internal condensation device 2, first valve 6 in parallel and first segment flow tube 10, external condenser
3rd, the 4th valve 9, microchannel aluminium flat conduit, check valve 11, the composition tertiary circuit of gas-liquid separator 5；
The internal condensation device 2, the second valve 7, the 4th valve 9, microchannel aluminium flat conduit, check valve 11, gas-liquid separator 5
It is sequentially connected by the first pipeline, compressor 1, internal condensation device 2, the second valve 7, the 4th valve 9, microchannel aluminium flat conduit, list
The 4th loop is constituted to valve 11, gas-liquid separator 5；As shown in Figure 2；
Above-mentioned microchannel aluminium flat conduit is contacted with battery component 100, and the surface of the battery component 100 is additionally provided with made by PTC
Heating film.
, located at the side of evaporimeter 4, cooling fan 13 is located at external condenser 3 for the air blast 19 and air-conditioning heater 18
Side, cooling water tank 17 located at external condenser 3 opposite side；The pump 14, cooling water tank 17 and power component 15 dissipate
Thermal is connected by the 4th pipeline successively head and the tail, and the heat abstractor of pump 14, cooling water tank 17 and motor 16 is by the 4th pipe
Successively head and the tail connect in road, and the pump 14 is also connected by the 4th pipeline with expansion tank 20.
The operation principle of the battery cooling system of above-mentioned electric motor car is described below, mainly includes four kinds of Working moulds
Formula：
Summer mode：First valve 6 is opened, and the second valve 7 is closed, and the 3rd valve 8 is opened, and the 4th valve 9 is opened, now
For the single condensation mode of double evaporations, by refrigerant compression into high-pressure gaseous, external condenser 3 freezes the high-pressure gaseous to compressor 1
Agent is condensed into liquid, and liquid refrigerant reaches evaporimeter 4 and lowers the temperature for compartment inner ring Jing, reaches cold for battery in microchannel aluminium flat conduit
But, the air entry of compressor 1 is entered after the gaseous refrigerant mixing out of last evaporator 4 and microchannel aluminium flat conduit.
Winter mode：That is air-conditioning heating battery refrigerating mode, the first valve 6 is closed, and the second valve 7 is opened, the 3rd valve 8
Open, the 4th valve 9 is opened, be now the single condensation mode of double evaporations, compressor 1 into high-pressure gaseous, plays refrigerant compression cold
Solidifying effect for internal condensation device 2, external condenser 3 is exchanged heat as evaporimeter 4 in outdoor, the system in microchannel aluminium flat conduit
Cryogen is cooled down for battery, final double evaporators 4 (i.e. external condenser 3 and microchannel aluminium flat conduit) gaseous refrigerant mixing out
The air entry of compressor 1 is entered by check valve 11；
Spring and autumn pattern：First valve 6 is closed, and the second valve 7 is opened, and the 4th valve 9 is opened, and compressor 1 is by cold-producing medium
High-pressure gaseous are compressed into, play condenser effect is internal condensation device 2, and external condenser 3 and microchannel aluminium flat conduit are used as evaporation
Device 4, and according to ambient temperature situations, adjust the air door of air-conditioning heater 18 and the circulating direction of the 3rd valve 8；
Low temperature battery heating mode：First valve 6 is closed, and the second valve 7 is opened, and the 4th valve 9 is closed, and is played condenser and is made
It is internal condensation device 2, used as evaporimeter 4, the heating film of surfaces of cell is that battery is heated to external condenser 3, and root
According to ambient temperature situations, the circulating direction of air conditioner damper and triple valve 7 is adjusted；
When being worked with above-mentioned winter mode, spring and autumn pattern, low temperature battery heating mode, outdoor temperature is all relatively low, existing
Heat pump refrigerant suction specific volume increase under low temperature, the inspiratory capacity of compressor can reduce rapidly, and compressor pressure ratio increases
Greatly, the coefficient of performance of system is constantly reduced, and delivery temperature also can be raised constantly, and compressor usually can stop because of overtemperature protection
Machine, and the battery cooling system of the utility model electric motor car, the evaporator evaporation temperature for cooling down battery is of a relatively high, double evaporators
The admission pressure of compressor is improve after outlet cold-producing medium mixing, the specific volume of compressor air suction mouth cold-producing medium is reduced, is improve
The inspiratory capacity of cold-producing medium, reduces compressor pressure ratio, so as to improve the coefficient of performance of system；
Defrost pattern：When motor 16, power component 15 are radiated by cooling water tank 17, be able to will be dissipated by cooling fan 13
Heat in boiler 17 is reached on external condenser 3, to improve heat, reduces the possibility of frosting.Can increase outside cold simultaneously
The EAT of condenser 3, improves the heating capacity of whole system.
In sum, the battery cooling system of the electric motor car that the utility model is provided, can be according to actual environment using not
Same pattern is cooled down to battery, reduces system operation energy consumption, and can realize, to the refrigeration in compartment, reaching again
Cooling purpose to battery, without the need for parts such as low temperature water tank, waterway pipe, expansion tank, plate-type evaporators, considerably reduces
The weight of whole machine.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalents made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in the technology neck of correlation
Domain, is included in the same manner in scope of patent protection of the present utility model.
Claims (10)
1. a kind of battery cooling system of electric motor car, including battery component, it is characterised in that also including cooling assembly and radiating
Part, the cooling assembly is connected by the first pipeline with the inlet and outlet of the radiating piece, the radiating piece and the battery
The surface contact of component.
2. the battery cooling system of electric motor car according to claim 1, it is characterised in that the radiating piece is microchannel aluminium
Flat tube, the cooling assembly includes compressor, internal condensation device, external condenser, evaporimeter and gas-liquid separator, the compression
Machine, internal condensation device, external condenser, evaporimeter and gas-liquid separator are connected by second pipe successively head and the tail, the outside
Condenser is connected by the 3rd pipeline with the gas-liquid separator, the external condenser, microchannel aluminium flat conduit, gas-liquid separator
It is sequentially connected by the first pipeline, the internal condensation device, microchannel aluminium flat conduit, gas-liquid separator are connected successively by the first pipeline
Connect.
3. the battery cooling system of electric motor car according to claim 2, it is characterised in that also including the first valve, second
Valve, the 3rd valve and the 4th valve, first valve is located between internal condensation device and external condenser, the 3rd valve
Door is located between external condenser and evaporimeter, and the 3rd valve is also connected by the 3rd pipeline and gas-liquid separator, described
4th valve is located between internal condensation device and microchannel aluminium flat conduit, and second valve is located at internal condensation device and the 4th valve
Between.
4. the battery cooling system of electric motor car according to claim 3, it is characterised in that also including first segment flow tube, institute
First segment flow tube is stated with first valve in parallel.
5. the battery cooling system of electric motor car according to claim 3, it is characterised in that also including check valve, described
Three valves and microchannel aluminium flat conduit are connected respectively by the check valve with gas-liquid separator.
6. the battery cooling system of electric motor car according to claim 3, it is characterised in that also including the second throttle pipe, institute
State the second throttle pipe to be located between the 3rd valve and evaporimeter.
7. the battery cooling system of electric motor car according to claim 2, it is characterised in that described also including cooling fan
Cooling fan is located at the side of the external condenser.
8. the battery cooling system of electric motor car according to claim 7, it is characterised in that also including pump, power component, electricity
Motivation and cooling water tank, are respectively equipped with heat abstractor, the pump, cooling water tank and power unit on the power component and motor
The heat abstractor of part is connected by the 4th pipeline successively head and the tail, and the heat abstractor of pump, cooling water tank and motor is by the 4th pipe
Road successively head and the tail connect, the cooling water tank near and be located at the external condenser opposite side.
9. the battery cooling system of electric motor car according to claim 2, it is characterised in that also including air-conditioning heater and drum
Blower fan, the air-conditioning heater and air blast are arranged at the side of the evaporimeter.
10. the battery cooling system of electric motor car according to claim 1, it is characterised in that the surfaces of cell sets
It is equipped with ptc heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621202104.1U CN206155082U (en) | 2016-11-08 | 2016-11-08 | Battery cooling system of electric motor car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621202104.1U CN206155082U (en) | 2016-11-08 | 2016-11-08 | Battery cooling system of electric motor car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206155082U true CN206155082U (en) | 2017-05-10 |
Family
ID=58659455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621202104.1U Active CN206155082U (en) | 2016-11-08 | 2016-11-08 | Battery cooling system of electric motor car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206155082U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585318A (en) * | 2016-11-08 | 2017-04-26 | 福州丹诺西诚电子科技有限公司 | Battery cooling system for electric vehicle |
| CN107310344A (en) * | 2017-06-29 | 2017-11-03 | 知豆电动汽车有限公司 | Thermal management system of electric automobile |
-
2016
- 2016-11-08 CN CN201621202104.1U patent/CN206155082U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106585318A (en) * | 2016-11-08 | 2017-04-26 | 福州丹诺西诚电子科技有限公司 | Battery cooling system for electric vehicle |
| CN106585318B (en) * | 2016-11-08 | 2023-06-02 | 福州丹诺西诚电子科技有限公司 | Battery cooling system of electric vehicle |
| CN107310344A (en) * | 2017-06-29 | 2017-11-03 | 知豆电动汽车有限公司 | Thermal management system of electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force 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 utility model: Battery cooling system for electric vehicles Effective date of registration: 20230616 Granted publication date: 20170510 Pledgee: China Co. truction Bank Corp Fuzhou Chengbei Branch Pledgor: FUZHOU XICHENG ELECTRONIC CO.,LTD. Registration number: Y2023350000155 |