WO2020103804A1 - 电池包冷却系统及电池包 - Google Patents

电池包冷却系统及电池包

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Publication number
WO2020103804A1
WO2020103804A1 PCT/CN2019/119254 CN2019119254W WO2020103804A1 WO 2020103804 A1 WO2020103804 A1 WO 2020103804A1 CN 2019119254 W CN2019119254 W CN 2019119254W WO 2020103804 A1 WO2020103804 A1 WO 2020103804A1
Authority
WO
WIPO (PCT)
Prior art keywords
connecting pipe
joint
inlet
outlet
battery pack
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.)
Ceased
Application number
PCT/CN2019/119254
Other languages
English (en)
French (fr)
Inventor
谷燕龙
黄小腾
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.)
Contemporary Amperex Technology Co Ltd
Original Assignee
Contemporary Amperex Technology 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 Contemporary Amperex Technology Co Ltd filed Critical Contemporary Amperex Technology Co Ltd
Priority to EP19887362.2A priority Critical patent/EP3796452B1/en
Publication of WO2020103804A1 publication Critical patent/WO2020103804A1/zh
Priority to US17/133,564 priority patent/US11283123B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6552—Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
    • H01M10/6567—Liquids
    • H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/271—Lids or covers for the racks or secondary casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0568—Liquid materials characterised by the solutes
    • 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

Definitions

  • Some embodiments of the present application relate to the technical field of battery modules, and particularly to the structure of a cooling system in a battery pack.
  • the existing battery pack cooling system is a water cooling system, which includes a cooling pipe provided inside the battery pack, and a cooling liquid flows through the cooling pipe.
  • the cooling fluid exchanges heat with the battery module inside the battery pack, and then flows to the outside of the battery pack for cooling and cooling, thereby diffusing the heat inside the battery pack to the outside of the battery pack.
  • the cooled coolant then flows into the battery pack from the cooling pipe inlet Internal recycling.
  • the purpose of some embodiments of the present application is to provide a battery pack cooling system, which is used to solve the problem that the inlet and outlet of the battery pack cooling pipe are easily connected in the prior art, resulting in the opposite direction of the coolant flow and affecting the interior of the battery pack.
  • the technical problem of battery module cooling or heating uniformity is to provide a battery pack cooling system, which is used to solve the problem that the inlet and outlet of the battery pack cooling pipe are easily connected in the prior art, resulting in the opposite direction of the coolant flow and affecting the interior of the battery pack.
  • a battery pack cooling system including: a cooling pipe disposed in the battery pack, the cooling pipe having an inlet and an outlet for cooling the battery module;
  • the inlet connecting tube extends into the battery pack to connect with the inlet, and has a first foolproof structure
  • the outlet connecting tube extends into the battery pack to connect with the outlet, and has a second foolproof structure, which is different from the first foolproof structure.
  • the first foolproof structure includes a first mating member, and a surface of the battery pack is provided with a first assembly hole adapted to the first mating member In the first assembly hole;
  • the second foolproof structure includes a second mating member, and a surface of the battery pack is provided with a second assembly hole adapted to the second mating member, and the second mating member is assembled to the second assembly Inside the hole.
  • the first fitting member is fixed on the outer wall of the inlet connecting pipe, and is connected to the battery pack through the fixing member;
  • the second fitting piece is fixed on the outer wall of the outlet connecting pipe, and is connected to the battery pack through the fixing piece.
  • the first mating member and the second mating member respectively include an elliptical disk and a convex portion, and the convex portion is disposed on a side of the elliptical disk;
  • the position of the convex part in the elliptical disc in the piece is different.
  • the structure of the first matching piece and the second matching piece adopting the combination of an elliptical disk and a convex portion can facilitate processing and assembly, and at the same time, can achieve a foolproof effect.
  • a cover plate and a dustproof pad are provided outside the first assembly hole, the dustproof pad is provided between the cover plate and the first assembly hole, and the inlet connecting pipe passes through The cover plate and the dustproof pad are connected to the inlet; the cover plate and the dustproof pad are provided outside the second assembly hole, and between the cover plate and the second assembly hole, the outlet is connected The tube passes through the cover plate and the dustproof pad is connected with the outlet.
  • non-metallic pads are provided between the outer wall of the inlet connecting pipe and the outer wall of the outlet connecting pipe and the cover plate.
  • the two protection pads block the contact between the cover plate and the inlet connecting pipe and the outlet connecting pipe, thereby blocking the occurrence of the electrochemical reaction.
  • the first fitting member includes: a first elliptical disk and a first convex portion
  • the second fitting member includes: a second elliptical disk and a second convex portion, and the second convex portion is disposed at The side of the second elliptical disk; the position of the first convex portion on the first elliptical disk is different from the position of the second convex portion on the second elliptical disk.
  • a first cover plate and a first dustproof pad are provided outside the first assembly hole, and the first dustproof pad is provided between the first cover plate and the first assembly hole ,
  • the inlet connecting pipe passes through the first cover plate and the first dustproof pad is connected to the inlet;
  • a second cover plate and a second dustproof pad are provided outside the second assembly hole, The second dustproof pad is disposed between the second cover plate and the second assembly hole, and the outlet connecting pipe passes through the second cover plate and the second dustproof pad is connected to the outlet.
  • a first non-metallic pad is provided between the outer wall of the inlet connecting pipe and the first cover plate; a first plate is provided between the outer wall of the outlet connecting pipe and the second cover plate Two non-metallic pads. The two non-metal pads block the contact between the cover plate and the inlet connecting pipe and the outlet connecting pipe, thereby blocking the occurrence of electrochemical reactions.
  • a sealing member is provided between the first fitting member and the first assembly hole; a sealing member is provided between the second fitting member and the second assembly hole.
  • the sealing member can fill the gap between the first fitting and the first assembly hole, and fill the gap between the second fitting and the second assembly hole, so as to achieve a waterproof effect.
  • one end of the inlet connecting pipe or the outlet connecting pipe is provided with a first joint, the first joint is used to connect with the inlet or the outlet, and the inlet connecting pipe or the outlet is connected
  • the other end of the tube is provided with a second joint, and the outer wall of the second joint is provided with a first rib protruding outward; the first rib of the inlet connection tube and the outlet of the outlet connection tube
  • the first ribs have different circumferential positions on the outer wall of the second joint. Therefore, the second joint of the inlet connecting pipe can only be connected to one end of the pipeline outside the battery pack, and the second joint of the outlet connecting pipe can only be connected to the other end of the pipeline outside the battery pack, thereby preventing fools effect.
  • one end of the inlet connecting pipe is provided with a first joint, the first joint is used to connect with the inlet, and the other end of the inlet connecting pipe is provided with a second joint, the second The outer wall of the joint is provided with a first rib protruding outward.
  • one end of the outlet connecting pipe is provided with a first joint, the first joint is used to connect with the outlet, and the other end of the outlet connecting pipe is provided with a second joint, the second The outer wall of the joint is provided with a first rib protruding outward.
  • the position of the first rib on one of the second joints is different from the position of the first rib on the other of the second joints. Therefore, the second joint of the inlet connecting pipe can only be connected to one end of the pipeline outside the battery pack, and the second joint of the outlet connecting pipe can only be connected to the other end of the pipeline outside the battery pack, thereby preventing Stay idle.
  • the outer wall of the second joint of the inlet connecting pipe or the outlet connecting pipe is further provided with a second rib; the second rib of the inlet connecting pipe is connected to the outlet
  • the second ribs of the tube have different circumferential positions on the outer wall of the second joint.
  • the second convex rib and the first convex rib cooperate with each other to further prevent foolproofness.
  • the outer wall of the second joint of the inlet connecting pipe is further provided with a second rib.
  • the outer wall of the second joint of the outlet connecting pipe is further provided with a second rib.
  • the position of the second rib on one of the second joints and the second rib on the other of the second joints are different.
  • the second convex rib and the first convex rib cooperate with each other to further prevent foolproofness.
  • the battery pack includes:
  • a cooling system is used to cool the battery module.
  • the cooling system is the battery pack cooling system described in any one of the above technical solutions.
  • the above technical solutions are provided with different foolproof structures on the inlet connecting pipe and the outlet connecting pipe of the cooling pipe of the battery pack, so that the inlet connecting pipe cannot be connected with the outlet of the cooling pipe, and the outlet connecting pipe cannot be connected with the cooling pipe
  • the connection of the inlet of the cooling tube effectively avoids the reverse flow of the cooling fluid inside the battery pack caused by the incorrect connection of the inlet and outlet of the cooling pipe, thereby effectively ensuring the uniformity of heat dissipation of each battery module in the battery pack.
  • Figure 1a is a schematic structural diagram of a battery pack cooling system
  • Figure 1b is a schematic diagram of the internal structure of the battery pack
  • Figure 2 is a schematic diagram of the structure of the inlet connection assembly
  • Figure 3 is a schematic diagram of the structure of the outlet connection assembly
  • FIG. 4 is a schematic diagram of the box wall of the battery pack
  • FIG. 5 is a schematic diagram of the inlet connection assembly and the outlet connection assembly connected to the box of the battery pack;
  • FIG. 6 is a schematic diagram of the connection of the inlet connection assembly and the external pipe joint.
  • connection refers to two or more; the terms “connection”, “fixed”, etc. should be understood in a broad sense, for example, “connection” may be a fixed connection, or It can be a detachable connection, or an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.
  • connection may be a fixed connection, or It can be a detachable connection, or an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium.
  • the flow rate of the cooling liquid in the battery pack needs to be distributed according to the distribution of the battery modules. That is, the flow rate of the cooling liquid is distributed according to the amount of heat generated. The more concentrated the battery module is, the greater the flow rate of the cooling liquid.
  • the shape and structure of the battery pack are various, and the distribution of the battery modules in the battery pack is also uneven. Therefore, the distribution of the cooling pipes and the cooling liquid of the cooling system is also uneven. distinguish.
  • the cooling fluid needs to flow into the battery pack to heat the battery module in the battery pack. It also requires that the cooling fluid can be distributed in the battery pack according to the distribution of the battery module to reduce Small temperature difference between different battery modules.
  • the inlet and outlet of the cooling pipe are mainly distinguished by adding corresponding marks.
  • the inlet and outlet of the cooling pipe are connected incorrectly, which causes the cooling fluid in the cooling pipe to flow in the opposite direction, affecting the uniformity of cooling or heating of the battery module inside the battery pack.
  • FIG. 1a, FIG. 1b to FIG. 6 some embodiments of the present application provide a battery pack cooling system.
  • the battery pack cooling system includes a cooling pipe 1, an inlet connection assembly 2 and an outlet connection assembly 3.
  • the cooling pipe 1 is provided inside the battery pack, and a cooling liquid circulates inside the cooling pipe 1 for cooling and cooling the battery module 8 inside the battery pack.
  • a cooling liquid circulates inside the cooling pipe 1 for cooling and cooling the battery module 8 inside the battery pack.
  • at least part of the cooling duct 1 may be provided on the support surface 7 of the battery pack, and the battery module 8 may be provided on the support surface 7, so that the support surface 7 and the support surface 7
  • the battery module 8 on 7 performs heat transfer, and transfers the heat of the battery module 8 to the cooling duct 1.
  • the cooling pipe 1 may be formed by connecting multiple sections of pipes in series or parallel, so that the flow rate of the cooling liquid can be reasonably distributed to cool each battery module 8 inside the battery pack.
  • An inlet 11 for the inflow of cooling liquid is provided at one end of the cooling duct 1
  • an outlet 12 for the outflow of cooling liquid is provided at the other end of the cooling duct 1.
  • the inlet connection assembly 2 and the outlet connection assembly 3 are fixed to the box 4 of the battery pack, wherein the inlet connection assembly 2 is used to connect to the inlet 11 and the outlet connection assembly 3 is used to connect to the outlet 12, so that The cooling pipe 1 is connected to a pipeline outside the battery pack.
  • the inlet connection assembly 2 includes an inlet connection tube 21 and a first foolproof structure
  • the outlet connection assembly 3 includes an outlet connection tube 31 and a second foolproof structure.
  • one end of the inlet connecting pipe 21 extends from the outside of the battery pack into the inside of the battery pack, and is connected to the inlet 11 at one end of the cooling duct 1.
  • the outlet connecting pipe 31 extends from the outside of the battery pack to the inside of the battery pack, and is connected to the outlet 12 at the other end of the cooling duct 1.
  • the first foolproof structure and the second foolproof structure are used to prevent the inlet connecting pipe 21 and the outlet connecting pipe 31 from being connected to the inlet 11 and the outlet 12 of the cooling duct 1, respectively, that is, to prevent the inlet connecting pipe 21 from being connected to the outlet 12 , While preventing the outlet connecting pipe 31 from being connected to the inlet 11.
  • the first foolproof structure and the second foolproof structure have different structures.
  • the first foolproof structure enables the inlet connecting pipe 21 to be connected only to the inlet 11 of the cooling pipe 1 but not to the outlet 12 of the cooling pipe 1;
  • the second foolproof structure allows the outlet connecting pipe 31 to be connected only to the outlet 12 of the cooling pipe 1 but not to the inlet 11 of the cooling pipe 1.
  • the first foolproof structure includes a first mating member 22 and the second foolproof structure includes a second mating member 32.
  • the first mating member 22 and the second mating member 32 have different shapes.
  • FIG. 4 it is a schematic structural view of the outer wall of the box 4 connecting the battery pack at the inlet connection assembly 2 and the outlet connection assembly 3.
  • the case 4 of the battery pack is provided with a first assembling hole 41 adapted to the first mating member 22 and a second assembling hole 42 adapted to the second mating member 32.
  • the inlet connecting pipe 21 extends into the battery pack from the first assembly hole 41, and then connects with the inlet 11 of the cooling duct 1, the first fitting 22 is assembled in the first assembly hole 41; similarly, the outlet connecting pipe 31 from the second The assembly hole 42 extends into the interior of the battery pack, and is then connected to the outlet 12 of the cooling pipe 1, and the second fitting 32 is assembled in the second assembly hole 42.
  • the second fitting hole 42 is fitted to the second fitting member 32. Therefore, when the inlet connecting pipe 21 is mistakenly connected to the outlet 12 of the cooling pipe 1, the first fitting 22 and the second assembly hole 42 are not fitted, and thus cannot be installed; in the same way, when the outlet connecting pipe 31 is mistakenly connected to the cooling pipe When the inlet 11 of 1 is used, the second fitting member 32 cannot be inserted into the first assembly hole 41, thereby playing a foolproof role.
  • the first fitting member 22 includes a first elliptical disk 222 to be disposed on the first convex portion 221 on the side of the first elliptical disk 222
  • the second fitting members 32 are respectively It includes a second elliptical disk 322 and a second convex portion 321 disposed on the side of the second elliptical disk 322. It is only that the position of the first convex portion 221 in the first fitting member 22 on the first elliptical disk 222 is different from the position of the second convex portion 321 in the second fitting member 32 on the second elliptical disk 322.
  • the cross-sections of the first mounting hole 41 and the second mounting hole 42 are elliptical holes, and a first escape groove 411 corresponding to the first convex portion 221 is provided on the circumference of the first mounting hole 41, and A second escape groove 421 corresponding to the second convex portion 321 is provided on the circumference of the second fitting hole 42. Therefore, the first fitting member 22 cannot be assembled into the second assembly hole 42 and the second fitting member 32 cannot be inserted into the first assembly hole 41.
  • the structure in which the first mating member 22 and the second mating member 32 are combined with an elliptical disk and a convex portion can facilitate processing and assembly, and at the same time can achieve a foolproof effect.
  • first mating member 22 and the second mating member 32 may be other plate-shaped, column-shaped or block-shaped structures with different profiles, and the first assembly hole 41 and the second assembly hole 42 are open corresponding to the cross-sectional shape. Hole, as long as the first fitting member 22 can fit into the first assembly hole 41 and cannot fit into the second assembly hole 42, and the second fitting member 32 can fit into the second assembly hole 42 and cannot fit into the first assembly hole 41, can.
  • a plate-shaped, column-shaped or block-shaped structure may also be added to the box 4 of the battery pack, and the inlet connection assembly 2 and the outlet connection assembly 3 may be provided with openings of corresponding cross sections or for avoidance. .
  • the end of the inlet connecting tube 21 is disposed through the first fitting 22, so that the end of the inlet connecting tube 21 extends into the battery pack from the box 4 of the battery pack.
  • the first matching member 22 can be fixed on the outer wall of the inlet connecting pipe 21, that is, the first matching member 22 and the outer wall of the inlet connecting pipe 21 are fixed and immovable.
  • a fixing hole 44a and a first through hole 45 are further provided inside the first assembly hole 41 on the box body 4 of the battery pack, wherein the first through hole 45 is for the inlet connecting pipe 21 to pass through and fix
  • the hole 44a is for fixing the first fitting 22. That is, the first fitting 22 is fixed to the outer wall of the inlet connecting pipe 21, and after being inserted into the first assembly hole 41, it can be fixed in the fixing hole 44a by a fixing member such as a bolt, so that the inlet connecting pipe 21 and the battery box The body 4 is fixedly connected to improve the connection strength of the inlet connecting pipe 21.
  • a fixing hole 44b and a second through hole 46 are also provided in the second assembly hole 42 of the box 4 of the battery pack, and the second through hole 46 is used for the outlet connecting pipe 31 to pass through, After the second fitting 32 is inserted into the second assembly hole 42, the outlet connecting tube 31 and the battery pack box 4 can be fixedly connected to the fixing hole 44 b through fixing members such as bolts.
  • a first sealing member 24 may also be provided on the inner side of the first matching member 22, and the first sealing member 24 is provided on the first matching member 22 and the first Between the mounting holes 41.
  • a second sealing member (not shown in FIG. 3) is provided between the second fitting 32 and the second assembly hole 42.
  • both the first sealing member 24 and the second sealing member may be sealing pads or sealing rings made of sealing materials such as rubber or silicone.
  • the sealing member 24 and the second sealing member have a certain elasticity.
  • the first sealing member 24 can be filled The gap between the first fitting member 22 and the first fitting hole 41, and the second sealing member can fill the gap between the second fitting member and the second fitting hole 42, so as to achieve a waterproof effect.
  • the inlet connection assembly 2 further includes a first cover plate 23 and a first dustproof pad 232.
  • the inlet connection tube 21 passes through the first cover plate 23 and the first dustproof pad 232 into the battery pack.
  • the first cover plate 23 can be made of stainless steel plate, aluminum alloy plate and other plate materials.
  • the first cover plate 23 and the first dustproof pad 232 are provided on the outer side of the first fitting 22, and the first cover plate 23 is located on the outer surface of the case 4 of the battery pack to cover the first assembly hole 41.
  • the first dustproof pad 232 is disposed between the first cover plate 23 and the first mounting hole 41 (that is, the surface of the mounting hole), thereby preventing fine particles such as dust in the air from entering the battery pack. As shown in FIGS.
  • the first cover plate 23 in order to fix the first cover plate 23 to the case 4 of the battery pack, is provided with a fixing hole 231, and the first Corresponding fixing holes 43a are provided on both sides of a mounting hole 41. Therefore, the first cover plate 23 can be fixed to the case 4 of the battery pack by fixing means such as bolts.
  • the outlet connection assembly 3 is also provided with a second cover plate 33 and a second dustproof pad 332, wherein, in order to fix the second cover plate 33, the second cover plate 33 is provided A fixing hole 331 is provided, and a corresponding fixing hole 43b is provided in the case 4 of the battery pack.
  • FIG. 5 it is a diagram after the inlet connection assembly 2 and the outlet connection assembly 3 are installed on the box 4 of the battery pack.
  • corresponding logos such as “water inlet” or “water outlet” may be provided on the first cover plate 23 and the second cover plate 33 .
  • a first non-metallic pad 25 made of a non-metallic material is provided between the outer wall of the inlet connecting pipe 21 and the first cover plate 23, and as shown in FIG. 3
  • a second non-metallic pad 35 made of non-metallic material is also provided between the outer wall of the outlet connecting pipe 31 and the second cover plate 33.
  • the first non-metallic pad 25 blocks the first cover plate 23 and the inlet connecting pipe 21, and the second non-metallic pad 35 prevents the contact between the second cover plate 33 and the outlet connecting pipe 31, thereby blocking the electrochemistry The reaction occurs.
  • the end of the inlet connecting tube 21 extending into the battery pack is provided with a first connector 211, which is used to connect to the inlet 11, and the other end of the inlet connecting tube 21 is provided with a second connector 212.
  • the second connector 212 is used to connect with a pipeline outside the battery pack.
  • the second connector 212 may be connected to the third connector 6, and the third connector 6 is a connector connected to a pipeline outside the battery pack.
  • a dust cap 26 for temporary use may be provided at the end of the second connector 212, and the dust cap 26 is removed when the inlet connecting tube 21 is connected to a pipeline outside the battery pack.
  • one end of the outlet connecting tube 31 extending into the battery pack is provided with a first joint 311, and the other end is provided with a second joint 312.
  • the second joint 312 is used to connect with a pipeline outside the battery pack.
  • the outer wall of the second connection 212 of the inlet connection pipe 21 is provided with a The first convex rib 212a protruding from the outside is provided with a groove matching with the first convex rib 212a at the pipeline interface outside the battery pack.
  • a first rib 312a is provided on the outer wall of the second joint 312 of the outlet connecting tube 31, and a groove matching the first rib 312a is provided at the other end interface of the pipeline outside the battery pack.
  • the circumferential position of the first rib 212a on the inlet connection pipe 21 at the outer wall of the second joint 212 is different from the circumferential position of the first rib 312a on the outlet connection pipe 31 at the outer wall of the second joint 312 (in some embodiments Is a mirror image), so that the second connector 212 of the inlet connecting pipe 21 can only be connected to one end of the pipeline outside the battery pack, and the second connector 312 of the outlet connecting pipe 31 can only be connected to the pipeline outside the battery pack The other end is connected to play a foolproof role.
  • the second joint 212 of the inlet connecting pipe 21 is further provided with a second rib 212b, and the second rib 212b and the first rib 212a are disposed on the second At different positions on the outer periphery of the second joint 212, the second rib 212b and the first rib 212a cooperate with each other to play a foolproof role.
  • a second rib 312b is also provided on the second joint 312 of the outlet connecting pipe 31, the second rib 312b and the first rib 312a are disposed at different positions on the outer periphery of the second joint 312, and the second rib 312b Cooperating with the first rib 312a plays a foolproof role.
  • the circumferential position of the second rib 312b on the outer wall of the second joint 212 is different from the circumferential position of the second rib 312b on the outer wall of the second joint 312 .
  • the battery pack includes more than two battery modules 8 and a cooling system for cooling the battery modules 8.
  • the battery module 8 may be disposed on the support surface 7 in the box 4 of the battery pack shown in FIGS. 1a and 1b.
  • the cooling system may be the battery pack cooling system described in any of the above embodiments.

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Abstract

一种电池包冷却系统及电池包，所述电池包冷却系统，包括：冷却管道(1)，设置于所述电池包内，具有入口(11)和出口(12)，用于对电池模组(8)进行冷却；入口连接管(21)，伸入至所述电池包内部与所述入口(11)连接，具有第一防呆结构；出口连接管(31)，伸入至所述电池包内部与所述出口(12)连接，具有第二防呆结构，所述第二防呆结构不同于所述第一防呆结构。所述冷却系统在冷却管道(1)的入口连接管(21)和出口连接管(31)设置了不同的防呆结构，使入口连接管(21)无法与冷却管道(1)的出口(12)连接，出口连接管(31)无法与冷却管道(1)的入口(11)连接，从而有效避免了冷却管道(1)的入口(11)与出口(12)连接错误而导致的冷却液在电池包内部反向流动的情况。

Description

电池包冷却系统及电池包
交叉引用
本申请引用于2018年11月20日递交的名称为“电池包冷却系统及电池包”的第2018219105738号中国专利申请，其通过引用被全部并入本申请。
技术领域
本申请的部分实施例涉及电池模组技术领域，特别涉及电池包中的冷却系统的结构。
背景技术
由于电池在工作时会产生大量的热量，为了维持电池包的内部温度稳定，通常都会在电池包内部设置冷却系统。现有的电池包冷却系统为水冷系统，包括有设置于电池包内部的冷却管道，在冷却管道内流通有冷却液。冷却液在电池包内部与电池模组进行热交换后，流至电池包外部进行冷却降温，从而将电池包内部的热量扩散至电池包外部，冷却后的冷却液再从冷却管道入口流入电池包内部循环使用。
发明内容
为此，本申请部分实施例的目的在于需要提供一种电池包冷却系统，用于解决现有技术中，电池包冷却管道的入口与出口易连接错误，导致冷却液流向相反，影响电池包内部电池模组冷却或加热均匀性的技术问题。
本申请的部分实施例提供了一种电池包冷却系统，包括：冷却管道，设置于所述电池包内，所述冷却管道具有入口和出口，用于对电池模组进行冷却；
入口连接管，伸入至所述电池包内部与所述入口连接，具有第一防呆结构；
出口连接管，伸入至所述电池包内部与所述出口连接，具有第二防呆结构，所述第二防呆结构不同于所述第一防呆结构。
在一些实施例中，所述第一防呆结构包括第一配合件，所述电池包的表面设置有与所述第一配合件相适配的第一装配孔，所述第一配合件装配于所述第一装配孔内；
所述第二防呆结构包括第二配合件，所述电池包的表面设置有与所述第二配合件相 适配的第二装配孔，所述第二配合件装配于所述第二装配孔内。
在一些实施例中，所述第一配合件固定于所述入口连接管的外壁上，并通过固定件与所述电池包连接；
所述第二配合件固定于所述出口连接管的外壁上，并通过固定件与所述电池包连接。
在一些实施例中，所述第一配合件和第二配合件分别包括椭圆盘与凸部，所述凸部设置于所述椭圆盘的侧面；所述第一配合件与所述第二配合件中所述凸部在所述椭圆盘的位置不同。第一配合件和第二配合件采用椭圆盘与凸部结合的结构可便于加工与装配，同时又能达到防呆的作用。
在一些实施例中，所述第一装配孔外侧设置有盖板和防尘垫，所述防尘垫设置于所述盖板与所述第一装配孔之间，所述入口连接管穿过所述盖板以及所述防尘垫与所述入口连接；所述第二装配孔外侧设置有盖板和防尘垫，所述盖板与所述第二装配孔之间，所述出口连接管穿过所述盖板以及所述防尘垫与所述出口连接。通过在第一装配孔和第二装配孔设置防尘垫可防止空气中的粉尘等细小颗粒物进入电池包内部。
在一些实施例中，所述入口连接管的外壁以及所述出口连接管的外壁与所述盖板之间设置有非金属护垫。通过两个护垫阻隔了盖板分别与入口连接管和出口连接管之间的接触，从而阻隔了电化学反应发生。
在一些实施例中，所述第一配合件包括：第一椭圆盘与第一凸部；所述第二配合件包括：第二椭圆盘与第二凸部，所述第二凸部设置于所述第二椭圆盘的侧面；所述第一凸部在所述第一椭圆盘上的位置与第二凸部在所述第二椭圆盘上的位置不同。
在一些实施例中，所述第一装配孔外侧设置有第一盖板和第一防尘垫，所述第一防尘垫设置于所述第一盖板与所述第一装配孔之间，所述入口连接管穿过所述第一盖板以及所述第一防尘垫与所述入口连接；所述第二装配孔外侧设置有第二盖板和第二防尘垫，所述第二防尘垫设置于所述第二盖板与所述第二装配孔之间，所述出口连接管穿过所述第二盖板以及所述第二防尘垫与所述出口连接。
在一些实施例中，所述入口连接管的外壁与所述第一盖板之间设置有第一非金属护垫；所述出口连接管的外壁与所述第二盖板之间设置有第二非金属护垫。通过两个非金属护垫阻隔了盖板分别与入口连接管和出口连接管之间的接触，从而阻隔了电化学反应发生。
在一些实施例中，所述第一配合件与所述第一装配孔之间设置有密封部件；所述第二配合件与所述第二装配孔之间设置有密封部件。密封部件可填充满第一配合件与第一装配孔之间的间隙，以及填充第二配合件与第二装配孔之间的间隙，从而达到防水的作用。
在一些实施例中，所述入口连接管或所述出口连接管的一端设置有第一接头，所述第一接头用于与所述入口或出口连接，所述入口连接管或所述出口连接管的另一端设置有第二接头，所述第二接头的外壁设置有向外侧凸起的第一凸筋；所述入口连接管的所述第一凸筋与所述出口连接管的所述第一凸筋在所述第二接头外壁的圆周位置不同。因此使入口连接管的第二接头只能与电池包外部的管路的其中一端连接，而出口连接管的第二接头只能与电池包外部的管路的另一端连接，从而起到防呆作用。
在一些实施例中，所述入口连接管的一端设置有第一接头，所述第一接头用于与所述入口连接，所述入口连接管的另一端设置有第二接头，所述第二接头的外壁设置有向外凸起的第一凸筋。
在一些实施例中，所述出口连接管的一端设置有第一接头，所述第一接头用于与所述出口连接，所述出口连接管的另一端设置有第二接头，所述第二接头的外壁设置有向外侧凸起的第一凸筋。
在一些实施例中，其中一个所述第二接头上的所述第一凸筋与另一个所述第二接头上的所述第一凸筋的位置不同。因此，使入口连接管的第二接头只能与电池包外部的管路的其中一端连接，而出口连接管的第二接头只能与电池包外部的管路的另一端连接，从而起到防呆作用。
在一些实施例中，所述入口连接管或所述出口连接管的所述第二接头的外壁还设置有第二凸筋；所述入口连接管的所述第二凸筋与所述出口连接管的所述第二凸筋在所述第二接头外壁的圆周位置不同。通过第二凸筋与第一凸筋相互配合，可进一步起到防呆作用。
在一些实施例中，所述入口连接管的所述第二接头的外壁还设置有第二凸筋。
在一些实施例中，所述出口连接管的所述第二接头的外壁还设置有第二凸筋。
在一些实施例中，其中一个所述第二接头上的所述第二凸筋与另一个所述第二接头上的所述第二凸筋的位置不同。通过第二凸筋与第一凸筋相互配合，可进一步起到防呆作用。
本申请的部分实施例还提供了一种电池包，所述电池包包括：
两个以上的电池模组；
冷却系统，用于对所述电池模组进行冷却，所述冷却系统为以上技术方案中任一所述的电池包冷却系统。
区别于现有技术，上述技术方案在电池包的冷却管道的入口连接管和出口连接管设置了不同的防呆结构，使入口连接管无法与冷却管道的出口连接，出口连接管道无法与冷却管道的入口连接，从而有效避免了冷却管道的入口与出口连接错误而导致的冷却液在电池包 内部反向流动的情况，从而有效保障了电池包内各电池模组的散热均匀性。
附图说明
图1a为电池包冷却系统的结构示意图；
图1b为电池包内部的结构示意图；
图2为入口连接组件的结构示意图；
图3为出口连接组件的结构示意图；
图4为电池包的箱体壁的示意图；
图5为入口连接组件和出口连接组件连接在电池包的箱体上示意图；
图6为入口连接组件与外部管路接头连接的示意图。
附图标记说明：
1、冷却管道；
11、入口；
12、出口；
2、入口连接组件；
21、入口连接管；
211、第一接头；
212、第二接头；
212a、第一凸筋；
212b、第二凸筋；
22、第一配合件；
221、第一凸部；
222、第一椭圆盘；
23、第一盖板；
231、固定孔；
232、第一防尘垫；
24、第一密封部件；
25、第一非金属护垫；
26、防尘盖；
3、出口连接组件；
31、出口连接管；
311、第一接头；
312、第二接头；
312a、第一凸筋；
312b、第二凸筋；
32、第二配合件；
321、第二凸部；
322、第二椭圆盘；
33、第二盖板；
331、固定孔；
332、第二防尘垫；
35、第二非金属护垫；
4、箱体；
41、第一装配孔；
411、第一避让槽；
42、第二装配孔；
421、第二避让槽；
43a、固定孔；
43b、固定孔；
44a、固定孔；
44b、固定孔；
45、第一通孔；
46、第二通孔；
5、螺栓；
6、第三接头；
7、支撑面；
8、电池模组；
具体实施例
为详细说明技术方案的技术内容、构造特征、所实现目的及效果，以下结合具体实 施例并配合附图详予说明。
需要说明的是，在本申请各实施例的描述中，除非另有明确的规定和限定，术语“第一”、“第二”、仅用于描述的目的，而不能理解为指示或暗示相对重要性；除非另有规定或说明，术语“多个”是指两个或两个以上；术语“连接”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接，或电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
本说明书的描述中，需要理解的是，本申请各实施例所描述的“上”、“下”、“左”、“右”等方位词是以附图所示的角度来进行描述的，不应理解为对本申请各实施例的限定。此外，在上下文中，还需要理解的是，当提到一个元件连接在另一个元件“上”或者“下”时，其不仅能够直接连接在另一个元件“上”或者“下”，也可以通过中间元件间接连接在另一个元件“上”或者“下”。
目前，为了保证电池包内部冷却的均匀性，防止电池包内部局部冷却不佳，在所述电池包内所述冷却液的流量，需要根据电池模组的分布情况而分配。即冷却液的流量根据发热量而分配，电池模组分布越集中的地方，冷却液的流量也要相应的增大。然而电池包的外形结构各种各样，其内的电池模组分布也是不均匀的，因此冷却系统的冷却管道以及冷却液的分布也是不均匀的，从而对冷却管道的入口与出口也是需要加以区分。
同理，当环境温度较低时，需要冷却液流入电池包，对电池包内的电池模组进行加热，其同样要求冷却液在电池包内能够根据电池模组的分布情况进行分配，以减小不同电池模组之间的温差。
而在现有技术中，冷却管道的入口与出口主要是通过增加对应的标识加以区分。在实际生产中，仍然存在冷却管道的入口与出口连接错误的情况，从而导致冷却管道内冷却液流向相反，影响电池包内部电池模组冷却或加热的均匀性。
基于此，请参阅图1a、图1b至图6，本申请的部分实施例提供了一种电池包冷却系统。
如图1a所示，所述电池包冷却系统包括冷却管道1、入口连接组件2和出口连接组件3。
其中，所述冷却管道1设置于所述电池包内部，冷却管道1内部流通有冷却液，用于对电池包内部的电池模组8进行冷却降温。其中，如图1a和图1b所示，冷却管道1至少有部分可设置于电池包的支撑面7上，支撑面7上可设置有电池模组8，从而通过支撑面7 与设置于支撑面7上的电池模组8进行热传递，将电池模组8的热量传递给冷却管道1。
所述冷却管道1可以由多段管道通过串联或并联方式连接而成，从而可合理分配冷却液的流量，对电池包内部各电池模组8进行冷却。在冷却管道1的一端设置有用于冷却液流入的入口11，冷却管道1的另一端设置有用于冷却液流出的出口12。如图1b所示，入口连接组件2和出口连接组件3固定于电池包的箱体4上，其中，入口连接组件2用于连接于入口11，出口连接组件3用于连接出口12，从而使冷却管道1连接于电池包外部的管路。
另外，如图2和图3所示，入口连接组件2包括入口连接管21和第一防呆结构，出口连接组件3包括出口连接管31和第二防呆结构。其中，如图1b、图2和图3所示，入口连接管21的一端由电池包的外部伸入至电池包内部，并且与冷却管道1一端的入口11连接。出口连接管31由电池包的外部伸入至电池包内部，并且与冷却管道1另一端的出口12相连接。
其中，第一防呆结构和第二防呆结构用于防止入口连接管21与出口连接管31分别与冷却管道1的入口11和出口12连接错误，即防止将入口连接管21连接于出口12，同时防止将出口连接管31连接于入口11。第一防呆结构和第二防呆结构具有不同的结构，第一防呆结构使入口连接管21只能与冷却管道1的入口11连接，而无法与冷却管道1的出口12连接；同理，第二防呆结构使出口连接管31只能与冷却管道1的出口12连接，而无法与冷却管道1的入口11连接。
如图2和图3所示，第一防呆结构包括第一配合件22，第二防呆结构包括第二配合件32，第一配合件22和第二配合件32具有不同的形状。
如图4所示，为连接入口连接组件2和出口连接组件3处的电池包的箱体4的外壁的结构示意图。在电池包的箱体4上开设有与第一配合件22相适配的第一装配孔41，以及与第二配合件32相适配的第二装配孔42。
入口连接管21从第一装配孔41伸入电池包内部，然后与冷却管道1的入口11连接，第一配合件22装配于第一装配孔41内；同理，出口连接管31从第二装配孔42伸入电池包内部，然后与冷却管道1的出口12连接，第二配合件32装配于第二装配孔42内。
由于第一配合件22与第二配合件32的形状不同，并且第一装配孔41与第一配合件22相适配，第二装配孔42与第二配合件32相适配。因此当误拿入口连接管21连接冷却管道1的出口12时，第一配合件22与第二装配孔42不适配，从而无法装入；同理，当误拿出口连接管31连接冷却管道1的入口11时，第二配合件32也无法装入第一装配孔41，从而起到防呆的作用。
如图2至图4所示，在本实施方式中，第一配合件22包括第一椭圆盘222以设置于第一椭圆盘222侧面的第一凸部221，所述第二配合件32分别包括第二椭圆盘322与设置于第二椭圆盘322侧面的第二凸部321。只是在第一配合件22中的第一凸部221在第一椭圆盘222上的位置，与第二配合件32中的第二凸部321在第二椭圆盘322上的位置不同。
如图4所示，第一装配孔41和第二装配孔42的截面为椭圆孔，并且在第一装配孔41的圆周上设置有与第一凸部221对应的第一避让槽411，以及在第二装配孔42的圆周上设置有与第二凸部321对应的第二避让槽421。从而使第一配合件22无法装配第二装配孔42中，以及第二配合件32无法装入第一装配孔41。第一配合件22和第二配合件32采用椭圆盘与凸部结合的结构可便于加工与装配，同时又能达到防呆的作用。
在部分实施方式中，第一配合件22和第二配合件32可以为其他不同轮廓的板状、柱状或块状结构，而第一装配孔41和第二装配孔42为对应截面形状的开孔，只要使第一配合件22能够装入第一装配孔41且无法装入第二装配孔42，并且使第二配合件32能够第二装配孔42且无法装入第一装配孔41即可。
在另一些实施方式中，也可以在电池包的箱体4上增加板状、柱状或块状结构，并且在入口连接组件2和出口连接组件3上设置对应截面的开孔或进行避让亦可。
如图2和图3所示，入口连接管21的末端穿过第一配合件22设置，从而使入口连接管21的末端由电池包的箱体4伸入至电池包内部。其中，第一配合件22可固定于入口连接管21的外壁上，即第一配合件22与入口连接管21的外壁是固定不可移动的。
如图4所示，电池包的箱体4上的第一装配孔41内部还设置有固定孔44a以及第一通孔45，其中，第一通孔45是供入口连接管21穿过，固定孔44a是用于固定第一配合件22。即第一配合件22固定于入口连接管21的外壁上，并在装入第一装配孔41后，可通过螺栓等固定件固定于固定孔44a中，从而使入口连接管21与电池包箱体4固定连接，提高入口连接管21的连接强度。
同理，如图4所示，电池包的箱体4上的第二装配孔42内也设置有固定孔44b以及第二通孔46，第二通孔46是供出口连接管31穿过，第二配合件32装入第二装配孔42后，可通过螺栓等固定件与固定孔44b上，使出口连接管31与电池包箱体4固定连接。
如图2和图3所示，为了保证电池包的防水等级，在第一配合件22的内侧还可设置有第一密封部件24，第一密封部件24设置于第一配合件22与第一装配孔41之间。同理，第二配合件32与第二装配孔42之间设置有第二密封部件(图3中未示出)。其中，第一密封部件24和第二密封部件均可为以橡胶或硅胶等密封材料制成的密封垫或密封圈。使得密 封部件24和第二密封部件具有一定的弹性，当第一配合件22和第二配合件32分别装入第一装配孔41和第二装配孔42内时，第一密封部件24可填充第一配合件22与第一装配孔41间的间隙，而第二密封件可填充第二配合件和第二装配孔42间的间隙，从而达到防水的作用。
如图2所示，入口连接组件2还包括有第一盖板23和第一防尘垫232，入口连接管21穿过第一盖板23以及第一防尘垫232进入电池包内部。其中，第一盖板23可以为不锈钢板、铝合金板等板材制成。第一盖板23和第一防尘垫232设置于第一配合件22的外侧，并且第一盖板23位于电池包的箱体4的外表面上，将第一装配孔41覆盖住。第一防尘垫232设置于第一盖板23与第一装配孔41(即装配孔表面)之间，从而防止空气中的粉尘等细小颗粒物进入电池包内部。如图2和图4所示，为了将第一盖板23固定于电池包的箱体4上，在第一盖板23上设置有固定孔231，并且在电池包的箱体4上的第一装配孔41的两侧设置有对应固定孔43a。因此通过螺栓等固定件可将第一盖板23固定于电池包的箱体4上。
同理，如图3和图4所示，出口连接组件3也设置有第二盖板33和第二防尘垫332，其中，为了固定第二盖板33，在第二盖板33上设置有固定孔331，在电池包的箱体4上设置有对应的固定孔43b。如图5所示，为入口连接组件2和出口连接组件3在电池包的箱体4上安装好后的示图。
另外，在部分实施例中，为了便于识别入口连接组件2和出口连接组件3，可在第一盖板23和第二盖板33上设置对应的“进水口”或“出水口”等标识字样。
考虑到第一盖板23以及第二盖板33与入口连接管21以及出口连接管31的材质不同，两者长期接触可能会发生电化学反应。因此，为了防止电化学反应发生，如图2所示，在入口连接管21的外壁与第一盖板23之间设置有非金属材料制成的第一非金属护垫25，以及如图3所示，在出口连接管31的外壁与第二盖板33之间也设置有非金属材料制成的第二非金属护垫35。第一非金属护垫25阻隔了第一盖板23与入口连接管21，而第二非金属护垫35阻止了第二盖板33与出口连接管31之间的接触，从而阻隔了电化学反应发生。
如图2和图3所示，入口连接管21的伸入电池包的一端设置有第一接头211，第一接头211用于与入口11连接，入口连接管21的另一端设置有第二接头212，第二接头212用于与电池包外部的管路连接。如图6所示，第二接头212可与第三接头6连接，第三接头6是连接于电池包外部的管路的接头。为了防止粉尘进入入口连接管21内部，可在第二接头212的末端设置临时使用的防尘盖26，该防尘盖26在入口连接管21连接电池包外部的管路时被摘除。
同理，如图3所示，出口连接管31伸入电池包的一端设置有第一接头311，另一端设置有第二接头312，第二接头312用于与电池包外部的管路连接。
为了防止所述入口连接管21上的第二接头212以及出口连接管31上的第二接头312与电池包外部的管路连接错误，在入口连接管21的第二接头212的外壁设置有向外侧凸起的第一凸筋212a，在电池包外部的管路接口设置有与第一凸筋212a配合的凹槽。同理，在出口连接管31的第二接头312的外壁设置有第一凸筋312a，并且在电池包外部的管路的另一端接口设置有与第一凸筋312a配合的凹槽。入口连接管21上的第一凸筋212a在第二接头212的外壁的圆周位置与出口连接管31上的第一凸筋312a在第二接头312的外壁的圆周位置不同(在一些实施例中为镜像设置)，因此使入口连接管21的第二接头212只能与电池包外部的管路的其中一端连接，而出口连接管31的第二接头312只能与电池包外部的管路的另一端连接，从而起到防呆作用。
另外，在部分实施例中，如图2和图3所示，入口连接管21的第二接头212上还设置有第二凸筋212b，第二凸筋212b与第一凸筋212a设置于第二接头212外周不同的位置，第二凸筋212b与第一凸筋212a相互配合起到防呆作用。
同理，在出口连接管31的第二接头312上也设置有第二凸筋312b，第二凸筋312b与第一凸筋312a设置于第二接头312外周不同的位置，第二凸筋312b与第一凸筋312a相互配合起到防呆作用。
并且，在部分实施例中，如图2和图3所示，第二凸筋312b在第二接头212的外壁的圆周位置，与第二凸筋312b在第二接头312的外壁的圆周位置不同。从而进一步起到防呆作用。
本申请的部分实施例还提供了一种电池包的实施方式。其中，电池包包括两个以上的电池模组8和用于对电池模组8进行冷却的冷却系统。电池模组8可设置于图1a和图1b所示的电池包的箱体4内的支撑面7上。冷却系统可以为以上任一实施方式所述的电池包冷却系统。

Claims (19)

  1. 一种电池包冷却系统，包括：冷却管道(1)，设置于电池包内，所述冷却管道(1)具有入口(11)和出口(12)，用于对电池模组(8)进行冷却；
    入口连接管(21)，伸入至所述电池包内部与所述入口(11)连接，具有第一防呆结构；
    出口连接管(31)，伸入至所述电池包内部与所述出口(12)连接，具有第二防呆结构，所述第二防呆结构不同于所述第一防呆结构。
  2. 根据权利要求1所述的冷却系统，其中,所述第一防呆结构包括第一配合件(22)，所述电池包的箱体(4)设置有与所述第一配合件(22)相适配的第一装配孔(41)，所述第一配合件(22)装配于所述第一装配孔(41)内；
    所述第二防呆结构包括第二配合件(32)，所述电池包的箱体(4)设置有与所述第二配合件(32)相适配的第二装配孔(42)，所述第二配合件(32)装配于所述第二装配孔(42)内。
  3. 根据权利要求2所述的冷却系统，其中,所述第一配合件(22)固定于所述入口连接管(21)的外壁上，并通过固定件与所述电池包连接；
    所述第二配合件(32)固定于所述出口连接管(31)的外壁上，并通过固定件与所述电池包连接。
  4. 根据权利要求2或3所述的冷却系统，其特征在于,所述第一配合件(22)和第二配合件(32)分别包括椭圆盘(222、322)与凸部(221、321)，所述凸部(221、321)设置于所述椭圆盘(222、322)的侧面；
    所述第一配合件(22)与所述第二配合件(32)中所述凸部(221、321)在所述椭圆盘(222、322)的位置不同。
  5. 根据权利要求2-4中任意一项所述的冷却系统，其特征在于,所述第一装配孔(41)外侧设置有盖板(23)和防尘垫(232)，所述防尘垫(232)设置于所述盖板(23)与所述第一装配孔(41)之间，所述入口连接管(21)穿过所述盖板(23)以及所述防尘垫(232)与所述入口(11)连接；
    所述第二装配孔外侧设置有盖板(33)和防尘垫(332)，所述盖板(33)与所述第二装配孔(42)之间，所述出口连接管(31)穿过所述盖板(33)以及所述防尘垫(332)与所述出口(12)连接。
  6. 根据权利要求5所述的冷却系统，其特征在于,所述入口连接管(21)的外壁以及所述出口连接管(31)的外壁与所述盖板(23、33)之间设置有非金属护垫(25、35)。
  7. 根据权利要求2或3所述的冷却系统，其中,所述第一配合件(22)包括：第一椭圆盘(222)与第一凸部(221)；
    所述第二配合件(32)包括：第二椭圆盘(322)与第二凸部(321)，所述第二凸部(321)设置于所述第二椭圆盘(322)的侧面；
    所述第一凸部(221)在所述第一椭圆盘(222)上的位置与第二凸部(321)在所述第二椭圆盘(322)上的位置不同。
  8. 根据权利要求2或3或7所述的冷却系统，其中,所述第一装配孔(41)外侧设置有第一盖板(23)和第一防尘垫(232)，所述第一防尘垫(232)设置于所述第一盖板(23)与所述第一装配孔(41)之间，所述入口连接管(21)穿过所述第一盖板(23)以及所述第一防尘垫(232)与所述入口(11)连接；
    所述第二装配孔(42)外侧设置有第二盖板(33)和第二防尘垫(332)，所述第二防尘垫(332)设置于所述第二盖板(33)与所述第二装配孔(42)之间，所述出口连接管(31)穿过所述第二盖板(33)以及所述第二防尘垫(332)与所述出口(12)连接。
  9. 根据权利要求8所述的冷却系统，其中,所述入口连接管(21)的外壁与所述第一盖板(23)之间设置有第一非金属护垫(25)；所述出口连接管(31)的外壁与所述第二盖板(33)之间设置有第二非金属护垫(35)。
  10. 根据权利要求2-9中任意一项所述的冷却系统，其中,所述第一配合件(22)与所述第一装配孔(41)之间设置有第一密封部件(24)；所述第二配合件(32)与所述第二装配孔(42)之间设置有第二密封部件。
  11. 根据权利要求1所述的冷却系统，其中,所述入口连接管(21)或所述出口连接管 (31)的一端设置有第一接头，所述第一接头用于与所述入口(11)或出口(12)连接，所述入口连接管(21)或所述出口连接管(31)的另一端设置有第二接头，所述第二接头的外壁设置有向外侧凸起的第一凸筋；
    所述入口连接管(21)的所述第一凸筋(212a)与所述出口连接管(31)的所述第一凸筋(312a)在所述第二接头(212)的外壁的圆周位置不同。
  12. 根据权利要求1-11中任意一项所述的冷却系统，其中，所述入口连接管(21)的一端设置有第一接头(211)，所述第一接头(211)用于与所述入口(11)连接，所述入口连接管(21)的另一端设置有第二接头(212)，所述第二接头(212)的外壁设置有向外凸起的第一凸筋(212a)。
  13. 根据权利要求1-11中任意一项所述的冷却系统，其中，所述出口连接管(31)的一端设置有第一接头(311)，所述第一接头(311)用于与所述出口(12)连接，所述出口连接管(31)的另一端设置有第二接头(312)，所述第二接头(312)的外壁设置有向外侧凸起的第一凸筋(312a)。
  14. 根据权利要求1-11中任意一项所述的冷却系统，其中，所述入口连接管(21)的一端设置有第一接头(211)，所述第一接头(211)用于与所述入口(11)连接，所述入口连接管(21)的另一端设置有第二接头(212)，所述第二接头(212)的外壁设置有向外凸起的第一凸筋(212a)；
    所述出口连接管(31)的一端设置有第一接头(311)，所述第一接头(311)用于与所述出口(12)连接，所述出口连接管(31)的另一端设置有第二接头(312)，所述第二接头(312)的外壁设置有向外侧凸起的第一凸筋(312a)；
    其中一个所述第二接头(212)上的所述第一凸筋(212a)与另一个所述第二接头(212)上的所述第一凸筋(312a)的位置不同。
  15. 根据权利要求11所述的冷却系统，其中,所述入口连接管(21)或所述出口连接管(31)的所述第二接头的外壁还设置有第二凸筋；
    所述入口连接管(21)的所述第二凸筋(212b)与所述出口连接管(31)的所述第二凸 筋(312b)在所述第二接头外壁的圆周位置不同。
  16. 根据权利要求12或14所述的冷却系统，其中,所述入口连接管(21)的所述第二接头(212)的外壁还设置有第二凸筋(212b)。
  17. 根据权利要求13或14所述的冷却系统，其中,所述出口连接管(31)的所述第二接头(312)的外壁还设置有第二凸筋(312b)。
  18. 根据权利要求14所述的冷却系统，其中，所述入口连接管(21)的所述第二接头(212)的外壁还设置有第二凸筋(212b)，所述出口连接管(31)的所述第二接头(312)的外壁还设置有第二凸筋(312b)；
    其中一个所述第二接头(212)上的所述第二凸筋(212b)，与另一个所述第二接头(312)上的所述第二凸筋(312b)的位置不同。
  19. 一种电池包，包括：
    两个以上的电池模组；
    冷却系统，用于对所述电池模组进行冷却，所述冷却系统为权利要求1-18任一所述的电池包冷却系统。
PCT/CN2019/119254 2018-11-20 2019-11-18 电池包冷却系统及电池包 Ceased WO2020103804A1 (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4258417A1 (en) * 2022-04-07 2023-10-11 CALB Co., Ltd. Liquid cooling system, battery casing and battery pack

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209016205U (zh) * 2018-11-20 2019-06-21 宁德时代新能源科技股份有限公司 电池包冷却系统及电池包
CN110212133B (zh) * 2019-06-25 2021-02-05 奇瑞汽车股份有限公司 一种汽车电池包箱体与冷却水管管接头的密封固定结构
CN210566905U (zh) 2019-07-23 2020-05-19 江苏时代新能源科技有限公司 换热管接头以及电池包
JP7399650B2 (ja) * 2019-08-21 2023-12-18 マツダ株式会社 車両用バッテリパック
CN114284593B (zh) * 2021-12-17 2023-07-14 重庆长安汽车股份有限公司 一种智能调节动力电池温度的热管理系统
CN217606896U (zh) * 2022-05-12 2022-10-18 江苏天合储能有限公司 用于储能系统的液冷管路、液冷系统以及储能设备
US20240167774A1 (en) * 2022-11-22 2024-05-23 Valeo Systemes Thermiques Fluid distribution tank for a tube of a heat exchanger
WO2024136007A1 (ko) * 2022-12-23 2024-06-27 주식회사 엘지에너지솔루션 배터리 팩 및 이를 포함하는 자동차
CN116499150B (zh) * 2023-04-27 2026-01-09 长虹美菱股份有限公司 一种管路系统及冰箱

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204558620U (zh) * 2015-04-29 2015-08-12 启明信息技术股份有限公司 一种电动汽车电池模组液冷装置
CN104884892A (zh) * 2012-12-27 2015-09-02 株式会社电装 热交换器
US20160049705A1 (en) * 2013-03-29 2016-02-18 Valeo Systemes Thermiques Heat-exchange panel for battery heat management and associated production method
CN107069142A (zh) * 2017-06-12 2017-08-18 华霆（合肥）动力技术有限公司 管路热管理装置及系统
JP2017215057A (ja) * 2016-05-30 2017-12-07 昭和電工株式会社 液冷式冷却装置およびその製造方法
CN207558861U (zh) * 2017-11-16 2018-06-29 东莞市迈泰热传科技有限公司 一种电池包箱体
CN108346839A (zh) * 2017-01-22 2018-07-31 宁德时代新能源科技股份有限公司 电池换热系统
CN209016205U (zh) * 2018-11-20 2019-06-21 宁德时代新能源科技股份有限公司 电池包冷却系统及电池包

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7658224B2 (en) * 2005-09-19 2010-02-09 Dana Canada Corporation Flanged connection for heat exchanger
EP2602141B1 (en) * 2011-12-07 2014-07-02 Valeo Systèmes Thermiques Interface between an expansion device and wall
JP2015020685A (ja) * 2013-07-23 2015-02-02 株式会社ヴァレオジャパン 封止部材及びこれを用いた蓄電池温度調整装置
US10431860B2 (en) * 2015-02-23 2019-10-01 Ford Global Technologies, Llc Cold plate assembly for electrified vehicle batteries
KR102314041B1 (ko) * 2015-03-12 2021-10-18 삼성에스디아이 주식회사 베터리 팩

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104884892A (zh) * 2012-12-27 2015-09-02 株式会社电装 热交换器
US20160049705A1 (en) * 2013-03-29 2016-02-18 Valeo Systemes Thermiques Heat-exchange panel for battery heat management and associated production method
CN204558620U (zh) * 2015-04-29 2015-08-12 启明信息技术股份有限公司 一种电动汽车电池模组液冷装置
JP2017215057A (ja) * 2016-05-30 2017-12-07 昭和電工株式会社 液冷式冷却装置およびその製造方法
CN108346839A (zh) * 2017-01-22 2018-07-31 宁德时代新能源科技股份有限公司 电池换热系统
CN107069142A (zh) * 2017-06-12 2017-08-18 华霆（合肥）动力技术有限公司 管路热管理装置及系统
CN207558861U (zh) * 2017-11-16 2018-06-29 东莞市迈泰热传科技有限公司 一种电池包箱体
CN209016205U (zh) * 2018-11-20 2019-06-21 宁德时代新能源科技股份有限公司 电池包冷却系统及电池包

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3796452A4 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4258417A1 (en) * 2022-04-07 2023-10-11 CALB Co., Ltd. Liquid cooling system, battery casing and battery pack
US12548816B2 (en) 2022-04-07 2026-02-10 Calb Co., Ltd. Liquid cooling system, battery casing and battery pack

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