CN105977426A - Liquid cooling tank and electric automobile power battery with same - Google Patents

Liquid cooling tank and electric automobile power battery with same Download PDF

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Publication number
CN105977426A
CN105977426A CN201610544342.9A CN201610544342A CN105977426A CN 105977426 A CN105977426 A CN 105977426A CN 201610544342 A CN201610544342 A CN 201610544342A CN 105977426 A CN105977426 A CN 105977426A
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CN
China
Prior art keywords
water inlet
heat exchange
pipe
water
inlet pipe
Prior art date
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Granted
Application number
CN201610544342.9A
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Chinese (zh)
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CN105977426B (en
Inventor
唐志国
楚金甫
陈西山
常乐
古伟鹏
汪世伟
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Hefei University of Technology
Henan Senyuan Heavy Industry Co Ltd
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Hefei University of Technology
Henan Senyuan Heavy Industry Co Ltd
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Priority to CN201610544342.9A priority Critical patent/CN105977426B/en
Publication of CN105977426A publication Critical patent/CN105977426A/en
Application granted granted Critical
Publication of CN105977426B publication Critical patent/CN105977426B/en
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Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/61Types of temperature control
    • H01M10/613Cooling or keeping cold
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/62Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625Vehicles
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/655Solid structures for heat exchange or heat conduction
    • H01M10/6556Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/60Heating or cooling; Temperature control
    • H01M10/65Means for temperature control structurally associated with the cells
    • H01M10/656Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567Liquids
    • H01M10/6568Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • 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

The invention provides a liquid cooling tank and an electric automobile power battery with the same. According to the liquid cooling tank and the electric automobile power battery, the problems of design deficiencies on heat dissipation and heating structures of a cylinder-specification power battery for an electric automobile are solved. The electric automobile power battery comprises the liquid cooling tank and an electric core die set assembled in the liquid cooling tank, wherein the liquid cooling tank comprises a tank body, a water inlet pipe, a water outlet pipe and a plurality of snake-shaped heat exchange flat pipes, the water inlet pipe and the water outlet pipe are arranged in the tank body, and the snake-shaped heat exchange flat pipes are arranged in a battery pack in a warping manner; and the electric core die set comprises an electric core die set shell and an electric core module assembled in the electric core module shell. Compared with a traditional battery heat dissipation manner, the electric automobile power battery has the advantage that heat dissipation flat pipes are inserted among cylindrical electric cores, penetrate into the battery pack and are in adequate contact with each cylindrical electric core, so that the contact areas between the heat dissipation flat pipes and the cylindrical electric cores are greatly increased. The electric automobile power battery has the characteristics of high heat dissipation and heating speeds, and the working temperature of the battery pack is uniform.

Description

A kind of electric automobile power battery with liquid ice chest and liquid ice chest thereof
Technical field
The invention belongs to electric automobile field, particularly relate to a kind of electric automobile power battery with liquid ice chest and liquid ice chest thereof.
Background technology
The key problem in technology of electric automobile is electrokinetic cell, the quality of electrokinetic cell performance directly determines the vehicle performance of electric automobile, safety and service life, owing to temperature can directly affect security performance and the life-span of battery, too low, vehicle performance can be caused to decline, too high, security incident may be caused, so how allow battery be in a kind of metastable working environment of temperature and become extremely important, on the one hand, in high temperature environments, the most during the broiling summer, electrokinetic cell can discharge substantial amounts of heat when using in charge and discharge process and under hot environment, accumulation of heat is produced by spacial influence, if this heat can not be discharged in time, heat will make the temperature of battery bag rise, now must start cooling system electrokinetic cell is cooled down;On the other hand, at low temperatures, especially in cold winter, electrokinetic cell service behaviour is very poor, even cannot be properly functioning, now battery must be carried out heat temperature raising, is allowed to be in optimal use temperature levels.
Additionally, if the heat radiation of power battery pack and heating arrangement design imperfection, battery bag modules temperature distributing disproportionation can be caused even, the working environment making each battery cell is different, this will have a strong impact on the concordance of cell performance, thus has a strong impact on the service life of whole power battery pack.
Electrokinetic cell kind has a lot, with good grounds positive and negative pole material is classified, with good grounds shape specification is classified, for the angle of heat exchange, affect heat exchange structure and be mainly designed to the shape of cell, according to shape, cell specification mainly has cuboid, cylinder, flake etc., wherein, cylinder main specifications is 18650 specifications, so-called 18650, the meaning is, diameter 18 millimeters, long 65 millimeters, than conventional No. 5 batteries, (model is 500, diameter 14 millimeters, long 50 millimeters) larger, typically, use the electric automobile power battery group of 18650 cell specifications, the quantity of required cell is between 2000-5000, cell for such vast number, how to carry out the optimization design of heat radiation and heating arrangement, it it is a major issue.
Factor in view of cost, sealing and safety, the heat transfer medium of electric automobile power battery group heat radiation at present and heating is mostly gas air, but, using air is that medium also has some to limit to, on the one hand, owing to needing the air being heated or cooled to need to flow through each piece of battery cell, and thousands of pieces of battery cells in car, space between battery cell is the least, the resistance which results in air circulation is the biggest, the rotation speed of fan selected and power are increased, causes unnecessary power consumption, make the noise of blower fan increase simultaneously;Some structures design even without space, cannot carry out air temperature modification well into each piece of battery cell the most at all, it is impossible to realize heat radiation and heating function.
Summary of the invention
The problem that electrokinetic cell for existing cylinder specification used for electric vehicle dispels the heat and heating arrangement design is not enough, the present invention provides a kind of electric automobile power battery with liquid ice chest and liquid ice chest thereof, to realize efficient, homogeneous, the safe cooling of cylinder electrokinetic cell and the heating that heats up.
For solving the problems referred to above, the present invention adopts the following technical scheme that
A kind of electric automobile power battery group liquid ice chest includes that casing, the water inlet pipe being arranged on box house and outlet pipe and dish are located at the multiple snakelike flat heat exchange pipe of internal battery pack;Water inlet pipe includes multiple water inlet pipe and for connecting the water inlet connecting leg of multiple water inlet pipe, outlet pipe includes multiple exit branch and for connecting the water outlet connecting leg of multiple exit branch, and water inlet pipe and outlet pipe dislocation are disposed in parallel in the box house position near sidewall;It is respectively arranged with on water inlet pipe and outlet pipe into the total joint of water and the total joint of water outlet, intakes total joint and the total joint of water outlet both passes through wall box and arranges;Water inlet pipe be respectively arranged with the quantity water inlet tap consistent with snakelike flat heat exchange pipe on exit branch along tube length direction and go out water tap, the two ends of snakelike flat heat exchange pipe are respectively arranged with module water supply connector and module water out adapter, the straight length of snakelike flat heat exchange pipe is wavy setting, and the undulating cross of adjacent two straight lengths is arranged, the module water supply connector of each snakelike flat heat exchange pipe and module water out adapter respectively with corresponding water inlet pipe and exit branch connection.
Improvement as the present invention a kind of electric automobile power battery group liquid ice chest, it is characterized in that: box shape is cuboid, being provided with the platform extended on the side, side of casing upper end, platform and body side are with wide, and length is less than the half of body side length.
Improvement as the present invention a kind of electric automobile power battery group liquid ice chest, it is characterised in that: it is wound with thermal insulation layer outside snakelike flat heat exchange pipe.
A kind of electric automobile power battery with liquid ice chest, including liquid ice chest and the battery core module that is assemblied in liquid cold box interior;Liquid ice chest includes that casing, the water inlet pipe being arranged on box house and outlet pipe and dish are located at the multiple snakelike flat heat exchange pipe of battery core module internal, wherein water inlet pipe includes multiple water inlet pipe and for connecting the water inlet connecting leg of multiple water inlet pipe, and outlet pipe includes multiple exit branch and for connecting the water outlet connecting leg of multiple exit branch;Water inlet pipe and outlet pipe dislocation are disposed in parallel in the box house position near sidewall, and it is respectively arranged with into the total joint of water and the total joint of water outlet on it, intake total joint and the total joint of water outlet both pass through wall box and arranges, water inlet pipe be respectively arranged with the quantity water inlet tap consistent with snakelike flat heat exchange pipe on exit branch along tube length direction and go out water tap;The two ends of snakelike flat heat exchange pipe are respectively arranged with module water supply connector and module water out adapter, the straight length of snakelike flat heat exchange pipe is wavy setting, and the undulating cross of adjacent two straight lengths is arranged, the module water supply connector of each snakelike flat heat exchange pipe and module water out adapter respectively with corresponding water inlet pipe and exit branch connection;Above-mentioned battery core module includes battery core module shell and is assemblied in the battery core module within battery core module shell, and battery core module shell includes top board, base plate and two blocks of side plates, and the outside of one of side plate is provided with a plurality of gripper shoe and fixed plate;Battery core module includes some groups of cylindrical battery cores, snakelike flat heat exchange pipe, upper flame-retardant board, lower flame-retardant board and copper nickel collector plate, some groups of cylindrical battery cores are placed between flame-retardant board and lower flame-retardant board, the lower surface of upper flame-retardant board and the upper surface of lower flame-retardant board are separately provided for the shoulder hole of component location guide cylindricality battery core, and the lower surface of the upper surface of upper flame-retardant board and the lower flame-retardant board cylindrical battery core of corresponding often group is provided with the counterbore for assembling copper nickel collector plate, dish is located in the space between adjacent two straight lengths of snakelike flat heat exchange pipe of battery core inside modules and is equipped with two row's cylinder battery cores, row's cylinder battery core it is equipped with in space between straight length and battery modules shell, the groove that each cylindrical battery core is all close on corresponding straight length is arranged.
Improvement as a kind of electric automobile power battery with liquid ice chest of the present invention, it is characterised in that: described snakelike flat heat exchange pipe includes four straight lengths and three bending sections for four straight lengths of connecting.
Improvement as a kind of electric automobile power battery with liquid ice chest of the present invention, it is characterised in that: the appearance of described cylindrical battery core is provided with insulating barrier, and the appearance of snakelike flat heat exchange pipe is provided with heat-conducting layer.
Improvement as a kind of electric automobile power battery with liquid ice chest of the present invention, it is characterised in that: the appearance of described snakelike flat heat exchange pipe is provided with thermal insulation layer.
Improvement as a kind of electric automobile power battery with liquid ice chest of the present invention, it is characterised in that: the material of described upper flame-retardant board and lower flame-retardant board is ABS fire proofing.
Improvement as a kind of electric automobile power battery with liquid ice chest of the present invention, it is characterised in that: the copper-nickel collector plate is fixed on upper flame-retardant board and lower flame-retardant board by the mode such as bolt or riveting.
Beneficial effect
Compared with prior art, the invention have the advantages that a kind of electric automobile power battery with liquid ice chest of the present invention and liquid ice chest thereof use liquid refrigeration technique, it is in close contact with cylindrical battery core by flat heat exchange pipe, this liquid heat transfer is carried out by heat-conducting mode, and heat transfer efficiency is more much higher than conventional air cooling;By intake total joint and the total joint arrangement of water outlet in the middle part of water inlet pipe Yu outlet pipe on water inlet pipe and outlet pipe, so that each piece of battery core module distribution gained inflow and water intake velocity are of substantially equal, so that cell obtains the highest temperature uniformity;Snakelike flat heat exchange pipe groove and cylindrical battery core perfect adaptation, substantially increase contact area, heat is made to obtain high efficiency of transmission, each piece of cylindrical battery core is separated simultaneously, the chain runaway effect caused because of the thermal runaway of one piece of cylindrical battery core can be avoided, improve the safety of electrokinetic cell casing;Battery core module frame is made up of with peripheral fixed structure upper and lower flame-retardant board, and ABS flame-retardant board corrosion-and high-temp-resistant and ABS flame-retardant board contact as module frame isolation battery core and external world's metal, safer during use;The collector plate of battery core module is fixed together by the mode such as bolt or rivet with ABS flame-retardant board so that the integrally-built stability of set of cells improves further.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of the present invention;
Fig. 2 is the cold piping schematic of liquid of the present invention;
Fig. 3 be outlet pipe of the present invention face structure chart;
Fig. 4 is the plan structure figure of outlet pipe of the present invention;
Fig. 5 is the three-dimensional structure diagram of battery core module of the present invention;
Fig. 6 is the decomposition chart of battery core module of the present invention;
Fig. 7 is the plan structure figure of the snakelike flat tube of the present invention;
Label in figure: 1 casing, 3 battery core modules, 4 snakelike flat heat exchange pipe, 5 water inlet pipes, 6 exit branch, the 7 total joints of water inlet, the 8 total joints of water outlet, 9 water inlet taps, 10 go out water tap, 11 module water supply connectors, 12 module water out adapters, 15 top boards, 16 base plates, 17 side plates, 18 gripper shoes, 19 fixed plates, 20 cylindrical battery cores, flame-retardant board on 21,22 times flame-retardant boards, 23 bronze medal nickel collector plate, 27 water inlet connecting legs, 28 water outlet connecting legs.
Detailed description of the invention
Embodiment 1
nullAs shown in the figure,A kind of electric automobile power battery group liquid ice chest includes casing 1、It is arranged on the water inlet pipe within casing 1 and outlet pipe and dish is located at the multiple snakelike flat heat exchange pipe 4 of internal battery pack,Water inlet pipe includes multiple water inlet pipe 5 and for connecting the water inlet connecting leg 27 of multiple water inlet pipe 5,Outlet pipe includes multiple exit branch 6 and for connecting the water outlet connecting leg 28 of multiple exit branch 6,Water inlet pipe and outlet pipe are arranged at the internal position near sidewall of casing 1,It is respectively arranged with on water inlet pipe and outlet pipe into the total joint of water 7 and the total joint of water outlet 8,Intake total joint 7 and the total joint of water outlet 8 both passes through casing 1 sidewall and arranges,Water inlet pipe 5 be respectively arranged with the quantity water inlet tap 9 consistent with snakelike flat heat exchange pipe 4 on exit branch 6 along tube length direction and go out water tap 10,The two ends of snakelike flat heat exchange pipe 4 are respectively arranged with module water supply connector 11 and module water out adapter 12,The straight length of snakelike flat heat exchange pipe 4 is wavy setting,And the undulating cross of adjacent two straight lengths is arranged,The module water supply connector 11 of each snakelike flat heat exchange pipe 4 and module water out adapter 12 connect with corresponding water inlet pipe 5 and exit branch 6 respectively.
The wherein side at Battery case 1 rear portion (in figure, right side is anterior) in the present embodiment is wider; the total joint of water inlet 7 and the total joint of water outlet 8 can be protected as a platform extended; easy for installation for take over; total for water inlet joint 7 and the total joint of water outlet 8 are arranged on middle more to the rear; particular location be the 7th and the 8th go out water tap 10(by Battery case 1 anterior several) between; in actual concrete operations, it is possible to be adjusted according to practical situation, but end positions can not be arranged in;Outside electrokinetic cell casing 1, by the cold pipeline of liquid by heater, radiator, micropump, the joint total with the water inlet in Inlet and outlet water module such as control valve 7 joint 8 total with water outlet connects, define liquid cooling loop, in liquid cooling loop, the fluid carrying out heat transmission is usually the mixed liquor of deionized water and alcohols.
Embodiment 2
nullAs shown in the figure,A kind of electric automobile power battery with liquid ice chest includes liquid ice chest and is assemblied in the battery core module 3 of liquid cold box interior,Liquid ice chest includes casing 1、It is arranged on the water inlet pipe within casing 1 and outlet pipe and dish is located at the multiple snakelike flat heat exchange pipe 4 within battery core module 3,Water inlet pipe includes multiple water inlet pipe 5 and for connecting the water inlet connecting leg 27 of multiple water inlet pipe 5,Outlet pipe includes multiple exit branch 6 and for connecting the water outlet connecting leg 28 of multiple exit branch 6,Water inlet pipe and outlet pipe are arranged at the internal position near sidewall of casing 1,It is respectively arranged with on water inlet pipe and outlet pipe into the total joint of water 7 and the total joint of water outlet 8,Intake total joint 7 and the total joint of water outlet 8 both passes through casing 1 sidewall and arranges,Water inlet pipe 5 be respectively arranged with the quantity water inlet tap 9 consistent with snakelike flat heat exchange pipe 4 on exit branch 6 along tube length direction and go out water tap 10,The two ends of snakelike flat heat exchange pipe 4 are respectively arranged with module water supply connector 11 and module water out adapter 12,The straight length of snakelike flat heat exchange pipe 4 is wavy setting,And the undulating cross of adjacent two straight lengths is arranged,Module water supply connector 11 and the module water out adapter 12 of each snakelike flat heat exchange pipe 4 connect respectively at corresponding water inlet pipe 5 and exit branch 6;Battery core module 3 includes battery core module shell and is assemblied in the battery core module within battery core module shell, and battery core module shell includes top board 15, base plate 16 and two blocks of side plates 17, and the outside of one of side plate 17 is provided with a plurality of gripper shoe 18 and fixed plate 19;nullBattery core module 15 includes some groups of cylindrical battery cores 20、Snakelike flat heat exchange pipe 4、Upper flame-retardant board 21、Lower flame-retardant board 22 and copper nickel collector plate 23,Some groups of cylindrical battery cores 20 are placed between flame-retardant board 21 and lower flame-retardant board 22,The lower surface of upper flame-retardant board 21 and the upper surface of lower flame-retardant board 22 are separately provided for the shoulder hole of component location guide cylindricality battery core 20,And the lower surface of the upper surface of upper flame-retardant board 21 and the lower flame-retardant board 22 cylindrical battery core 20 of corresponding often group is provided with the counterbore for assembling copper nickel collector plate 23,Dish is located in the space between adjacent two straight lengths of snakelike flat heat exchange pipe 4 of battery core inside modules and is equipped with two row's cylinder battery cores 20,Row's cylinder battery core 20 it is equipped with in space between straight length and battery modules shell,The groove that each cylindrical battery core equal 20 is close on corresponding straight length is arranged.
The wherein side at Battery case 1 rear portion (in figure, right side is anterior) in the present embodiment is wider; the total joint of water inlet 7 and the total joint of water outlet 8 can be protected as a platform extended; easy for installation for take over; total for water inlet joint 7 and the total joint of water outlet 8 are arranged on middle more to the rear; particular location be the 7th and the 8th go out water tap 10(by Battery case 1 anterior several) between; in actual concrete operations, it is possible to be adjusted according to practical situation, but end positions can not be arranged in.Outside electrokinetic cell casing 1, by the cold pipeline of liquid by heater, radiator, micropump, the joint total with the water inlet in Inlet and outlet water module such as control valve 7 joint 8 total with water outlet connects, define liquid cooling loop, in liquid cooling loop, the fluid carrying out heat transmission is usually the mixed liquor of deionized water and alcohols, three layers of battery core module 3 are set in Battery case 1, in the side within Battery case 1, water inlet pipe and outlet pipe are set, because Battery case 1 has three-decker, therefore water inlet pipe and outlet pipe are in " E " word shape, simultaneously, interfere for avoiding parts thereon to install, water inlet pipe and outlet pipe have been made the skew of horizontal direction and vertical direction.
In the present embodiment, battery core module 6 is in rule cuboid, in each piece of battery core module 3, arrange one in roundabout layout snakelike type flat heat exchange pipe 4, cylindrical battery core 20 is arranged in snakelike type flat heat exchange pipe 4 both sides simultaneously, cylindrical battery core 20 in eight row, often row 33 pieces, i.e. every piece battery core module 3 has 264 pieces of cylindrical battery cores 20.
The above, it it is only presently preferred embodiments of the present invention, not the present invention is made any pro forma restriction, although the present invention is disclosed above with preferred embodiment, but it is not limited to the present invention, any those skilled in the art, in the range of without departing from technical solution of the present invention, when the technology contents of available the disclosure above makes a little change or is modified to the Equivalent embodiments of equivalent variations, in every case it is without departing from technical solution of the present invention content, any simple modification above example made according to the technical spirit of the present invention, equivalent variations and modification, all still fall within the range of technical solution of the present invention.

Claims (9)

  1. null1. an electric automobile power battery group liquid ice chest,It is characterized in that: liquid ice chest includes casing (1)、It is arranged on the internal water inlet pipe of casing (1) and outlet pipe and dish is located at the multiple snakelike flat heat exchange pipe (4) of internal battery pack,Described water inlet pipe includes multiple water inlet pipe (5) and is used for connecting the water inlet connecting leg (27) of multiple water inlet pipe (5),Outlet pipe includes multiple exit branch (6) and is used for connecting the water outlet connecting leg (28) of multiple exit branch (6),Water inlet pipe and outlet pipe dislocation are disposed in parallel in the internal position near sidewall of casing (1),It is respectively arranged with on described water inlet pipe and outlet pipe into the total joint of water (7) and the total joint of water outlet (8),Intake total joint (7) and the total joint of water outlet (8) both passes through casing (1) sidewall and arranges,Described water inlet pipe (5) be respectively arranged with the quantity water inlet tap (9) consistent with snakelike flat heat exchange pipe (4) quantity on exit branch (6) along tube length direction and go out water tap (10),The two ends of described snakelike flat heat exchange pipe (4) are respectively arranged with module water supply connector (11) and module water out adapter (12),The straight length of snakelike flat heat exchange pipe (4) is wavy setting,And the undulating cross of adjacent two straight lengths is arranged,The module water supply connector (11) of each snakelike flat heat exchange pipe (4) and module water out adapter (12) connect with corresponding water inlet pipe (5) and exit branch (6) respectively.
  2. 2. a kind of electric automobile power battery group liquid ice chest as claimed in claim 1, it is characterized in that: described casing (1) profile is cuboid, being provided with the platform extended on the side, side of casing (1) upper end, platform and body side are with wide, and length is less than the half of body side length.
  3. 3. a kind of electric automobile power battery group liquid ice chest, it is characterised in that: it is wound with thermal insulation layer outside described snakelike flat heat exchange pipe (4).
  4. null4. the electric automobile power battery with liquid ice chest,It is characterized in that: include liquid ice chest and be assemblied in the battery core module (3) of liquid cold box interior,Described liquid ice chest includes casing (1)、It is arranged on the internal water inlet pipe of casing (1) and outlet pipe and dish is located at the multiple snakelike flat heat exchange pipe (4) that battery core module (3) is internal,Described water inlet pipe includes multiple water inlet pipe (5) and is used for connecting the water inlet connecting leg (27) of multiple water inlet pipe (5),Outlet pipe includes multiple exit branch (6) and is used for connecting the water outlet connecting leg (28) of multiple exit branch (6),Water inlet pipe and outlet pipe are arranged at the internal position near sidewall of casing (1),It is respectively arranged with on described water inlet pipe and outlet pipe into the total joint of water (7) and the total joint of water outlet (8),Intake total joint (7) and the total joint of water outlet (8) both passes through casing (1) sidewall and arranges,Described water inlet pipe (5) be respectively arranged with the quantity water inlet tap (9) consistent with snakelike flat heat exchange pipe (4) on exit branch (6) along tube length direction and go out water tap (10),The two ends of the snakelike flat heat exchange pipe (4) that described dish is located at battery core inside modules are respectively arranged with module water supply connector (11) and module water out adapter (12),The module water supply connector (11) of each snakelike flat heat exchange pipe (4) and module water out adapter (12) connect with corresponding water inlet pipe (5) and exit branch (6) respectively;Described battery core module (3) includes battery core module shell and is assemblied in the battery core module within battery core module shell, battery core module shell includes top board (15), base plate (16) and two pieces of side plates (17), and the outside of one of side plate (17) is provided with a plurality of gripper shoe (18) and fixed plate (19);Battery core module (15) includes some groups of cylindrical battery cores (20), snakelike flat heat exchange pipe (4), upper flame-retardant board (21), lower flame-retardant board (22) and copper nickel collector plate (23), some groups of cylindrical battery cores (20) are placed between flame-retardant board (21) and lower flame-retardant board (22), the lower surface of upper flame-retardant board (21) and the upper surface of lower flame-retardant board (22) are separately provided for the shoulder hole of component location guide cylindricality battery core (20), and the lower surface correspondence of the upper surface of upper flame-retardant board (21) and lower flame-retardant board (22) is often organized cylindrical battery core (20) and is provided with the counterbore for assembling copper nickel collector plate (23);Two rows' cylinder battery core (20) it are equipped with in space between adjacent two straight lengths of snakelike flat heat exchange pipe (4), being equipped with row's cylinder battery core (20) in space between straight length and battery modules shell, the groove that each cylindrical battery core all (20) is close on corresponding straight length is arranged.
  5. A kind of electric automobile power battery with liquid ice chest, it is characterised in that: described snakelike flat heat exchange pipe (4) includes four straight lengths and three bending sections for four straight lengths of connecting.
  6. A kind of electric automobile power battery with liquid ice chest, it is characterised in that: the appearance of described cylindrical battery core (20) is provided with insulating barrier, and the appearance of snakelike flat heat exchange pipe (4) is provided with heat-conducting layer.
  7. A kind of electric automobile power battery with liquid ice chest, it is characterised in that: the appearance of described snakelike flat heat exchange pipe (4) is provided with thermal insulation layer.
  8. A kind of electric automobile power battery with liquid ice chest, it is characterised in that: the material of described upper flame-retardant board (21) and lower flame-retardant board (22) is ABS fire proofing.
  9. A kind of electric automobile power battery with liquid ice chest, it is characterised in that: the copper-nickel collector plate (23) is fixed on upper flame-retardant board (21) and lower flame-retardant board (22) by the mode such as bolt or riveting.
CN201610544342.9A 2016-07-12 2016-07-12 A kind of electric automobile power battery and its liquid cooling case with liquid cooling case Active CN105977426B (en)

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CN201610544342.9A CN105977426B (en) 2016-07-12 2016-07-12 A kind of electric automobile power battery and its liquid cooling case with liquid cooling case

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Application Number Priority Date Filing Date Title
CN201610544342.9A CN105977426B (en) 2016-07-12 2016-07-12 A kind of electric automobile power battery and its liquid cooling case with liquid cooling case

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CN105977426B CN105977426B (en) 2019-04-26

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Cited By (8)

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