CN110797606A - Cooling system for new energy automobile battery pack - Google Patents
Cooling system for new energy automobile battery pack Download PDFInfo
- Publication number
- CN110797606A CN110797606A CN201911137868.5A CN201911137868A CN110797606A CN 110797606 A CN110797606 A CN 110797606A CN 201911137868 A CN201911137868 A CN 201911137868A CN 110797606 A CN110797606 A CN 110797606A
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- CN
- China
- Prior art keywords
- cooling
- thermal contact
- cooling system
- cooling device
- battery
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
- B60L58/24—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries
- B60L58/26—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries for controlling the temperature of batteries by cooling
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- 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
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- 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
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
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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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The invention relates to a cooling system for a new energy automobile battery pack, wherein the battery pack comprises battery modules arranged in a stacked manner, the cooling system comprises a first cooling device in thermal contact with a first surface of the battery modules and a second cooling device in thermal contact with the first cooling device, and at least one part of the second cooling device extends from the first cooling device in a substantially vertical direction to penetrate through the stacked battery modules and is in thermal contact with a second surface of the stacked battery modules. The cooling system can be widely applied to new energy power vehicles, such as electric vehicles, can effectively and quickly cool the power battery module, can avoid the connection design of the two layers of water cooling plates, avoids the leakage problem caused by the aging of the connection rubber pipe, avoids the leakage risk possibly caused by the joint and the aging of a pipeline and the safety risk of short circuit caused by the leakage when the cooling liquid flows through the upper layer module.
Description
Technical Field
The invention relates to the technical field of power battery cooling, in particular to a cooling system for a new energy automobile battery pack.
Background
The new energy automobile adopts unconventional automobile fuel as a power source (or adopts conventional automobile fuel and a novel vehicle-mounted power device), integrates advanced technologies in the aspects of power control and driving of the automobile, and forms an automobile with advanced technical principle, new technology and new structure. The new energy automobile comprises a pure electric automobile, a range-extended electric automobile, a hybrid electric automobile, a fuel cell electric automobile, a hydrogen engine automobile, other new energy automobiles and the like. Most of which require the use of power cells. For ensuring efficient power and long service life cycle, a new energy automobile power battery generally needs to be cooled by an electric core and a module in a battery pack by a cooling system. The cooling system who adopts at present is mostly water cooling system, and it needs adapter or connection rubber tube usually, along with the battery package is at the use circulation and the vibration of whole car end, can cause the ageing of rubber tube and junction, leads to the weeping risk. In addition, in the battery pack, because the battery power needs to be increased, a plurality of battery modules generally need to be arranged, and in order to reduce the battery floor space, the plurality of battery modules need to be designed into a multilayer overlapping design, and how to radiate and cool the multilayer overlapping battery modules is a big problem which needs to be solved urgently. In the conventional technology, when the battery is designed by a double-layer module, two layers of water cooling plates need to be designed, and a pipeline and a joint need to be connected up and down. And the connection of the pipeline and the joint can greatly increase the risk of aging and leakage in the use process of the battery.
Disclosure of Invention
In order to overcome the technical defects, the invention aims to provide an innovative cooling system for a new energy automobile battery pack, which is preferably used in the design of a multilayer battery module, can effectively avoid the use of multilayer water cooling plates, particularly avoid the use of connectors and connecting pipelines between the water cooling plates, and greatly reduce the risk of aging and leakage of the battery pack.
In order to achieve the technical purpose, the invention adopts the technical scheme that: a cooling system for a new energy vehicle battery pack, wherein the battery pack comprises battery modules arranged in a stack, the cooling system comprising a first cooling device in thermal contact with a first surface of the battery modules and a second cooling device in thermal contact with the first cooling device, at least a portion of the second cooling device extending in a substantially vertical direction from the first cooling device through the battery modules arranged in the stack to be in thermal contact with a second surface of the battery modules arranged in the stack.
The cooling system of the present invention, wherein an upper surface of the first cooling device is in thermal contact with a first surface of the battery module, and the second cooling device includes a first portion and a second portion that are substantially perpendicular to each other, the first portion extending from the first cooling device in a substantially perpendicular direction through the stacked battery modules to be in thermal contact with a second surface of the stacked battery modules, the second portion being in thermal contact with a lower surface of the first cooling device.
The cooling system can be widely applied to new energy power vehicles, such as electric vehicles, can effectively and quickly cool the power battery module, can avoid the connection design of the two layers of water cooling plates, avoids the leakage problem caused by the aging of the connection rubber pipe, avoids the leakage risk possibly caused by the joint and the aging of a pipeline and the safety risk of short circuit caused by the leakage when the cooling liquid flows through the upper layer module.
According to a preferred embodiment, the cooling system of the present invention, wherein the first surface is a bottom surface of the battery module, the first cooling device is horizontally disposed on the bottom surface of the battery module, and the first cooling device is a liquid cooling plate that conducts heat through an internal cooling liquid.
The second cooling means may be various heat conductive plates or bodies having excellent heat conductive properties, wherein preferably, the first portion of the second cooling means is a heat conductive solid copper plate in thermal contact with the second surface of the battery module, which is a side surface of the battery module. In another preferred embodiment, the first portion of the second cooling device is a copper frame in thermal contact with a second surface of the battery module, wherein the second surface is four sides of a side of the battery module.
In order to better obtain the effect of heat transfer and heat conduction and avoid the use of connecting pipelines and joints, the thermal contact mode of the second cooling device and the first cooling device is welding, clamping or riveting.
In a most preferred embodiment of the present invention, the first cooling device is a water-cooled plate made by welding a mouth-shaped pipe, and the second cooling device is an L-shaped heat-conducting copper plate in thermal contact with the mouth-shaped pipe by welding. The technical scheme is simple and easy to implement, low in cost and simple in processing technology, does not need to upgrade the existing equipment too much, and is more beneficial to practical application. Simultaneously, this scheme of adoption can obtain very good heat conduction effect in multilayer battery module, can be fast effectively with the heat that power battery module produced after the conduction of second cooling device to first cooling device, conduct away along with the coolant liquid. Meanwhile, the use of a bent path joint and a pipeline is completely avoided, and the leakage risk is reduced.
The cooling system of the present invention, wherein the first cooling device further comprises an inlet and an outlet through which the cooling medium enters and exits.
The invention also provides a new energy automobile battery pack comprising the cooling system and a new energy automobile. Can effectually carry out quick cooling to the power battery module, still can avoid the connection design of two layers of water-cooling boards simultaneously, avoid connecting the problem of revealing that the rubber tube is ageing to lead to, avoid the coolant liquid to flow through upper module, save pipeline joint and ageing risk of revealing that probably brings, also avoided revealing the safe risk that causes the short circuit.
Drawings
FIG. 1 is a schematic view of one embodiment of a cooling system of the present invention;
FIG. 2 is a schematic view of another embodiment of the cooling system of the present invention.
Detailed Description
Embodiments of the present invention are described below with reference to the drawings. Elements and features depicted in one drawing or one embodiment of the invention may be combined with elements and features shown in one or more other drawings or embodiments. It should be noted that the figures and description omit representation and description of components or processes that are not relevant to the present invention and that are known to those of ordinary skill in the art for the sake of clarity.
The invention provides a cooling system for a new energy automobile battery pack, wherein the battery pack comprises battery modules which are arranged in a stacked mode, the cooling system comprises a first cooling device 1 in thermal contact with a first surface of the battery modules and a second cooling device 2 in thermal contact with the first cooling device, at least one part of the second cooling device 2 extends from the first cooling device 1 in a substantially vertical direction to penetrate through the battery modules which are arranged in the stacked mode so as to be in thermal contact with a second surface of the battery modules which are arranged in the stacked mode.
Example 1:
fig. 1 shows an embodiment of the cooling system of the present invention, which is specifically described with reference to fig. 1, wherein the first surface of the battery module is a bottom surface of the battery module, the first cooling device 1 is horizontally disposed on the bottom surface of the battery module, and the first cooling device 1 is preferably a liquid cooling plate that conducts heat through internal cooling liquid, and may be a water cooling plate fabricated by welding a port pipe; the upper surface of the first cooling device 1 is in thermal contact with the first surface of the battery module; the second cooling device 2 comprises a first portion 21 and a second portion 22 which are substantially perpendicular to each other, the first portion 21 extending in a substantially perpendicular direction from the first cooling device 1 through the stacked battery modules (not shown in the drawings) to be in thermal contact with a second surface of the battery modules (e.g., a side surface of the battery modules), the second portion 22 being in thermal contact with a lower surface of the first cooling device 1. The first portion 21 of the second cooling device 2 of the present embodiment is a thermally conductive solid copper plate in thermal contact with the second surface of the battery module. The second cooling device 2 is riveted to the first cooling device 1 in a thermal contact manner, which may also take the form of welding, clamping, etc. For example, the second cooling means 2 may be an L-shaped heat conducting copper plate in thermal contact with the die plate by welding.
The heat conduction copper plate of this embodiment closely laminates in the both sides of battery module, can be with the instant, quick conduction of the heat that battery work produced in the first cooling device 1 of below, cooling system still include with the coolant liquid import and the coolant liquid export (not shown) that link to each other of the exit of first cooling device. The copper cast heat conducting plate is used for cooling, and upper and lower layer connecting pipes are avoided.
Example 2:
fig. 2 shows another embodiment of the cooling system of the present invention, which is specifically described with reference to fig. 2, and the main difference from example 1 is that the first portion 21 of the second cooling device 2 of this embodiment is a copper frame 22 in thermal contact with the second surface of the battery module (e.g., four sides of the side of the battery module).
The heat conduction copper frame of this embodiment pastes upper battery module, can be with the first cooling device 1 of below in the heat instant, quick conduction that battery work produced, cooling system still include with the coolant liquid import and the coolant liquid export (not shown) that link to each other of first cooling device's exit. The working temperature of the battery module can be effectively reduced, the performance of the battery module is improved, and the risk of battery leakage is reduced.
The invention also provides a new energy automobile battery pack comprising the cooling system and a new energy automobile. Can effectually carry out quick cooling to power battery module, still can avoid the connection design of two layers of water-cooling boards simultaneously, avoid connecting the problem of revealing that the rubber tube is ageing to lead to, avoid the coolant liquid to flow through upper module, save pipeline joint and ageing risk of revealing that probably brings, also avoided revealing the safe risk that causes the short circuit
Although the present invention and its advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims. Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, means, methods and steps described in the specification. As one of ordinary skill in the art will readily appreciate from the disclosure of the present invention, processes, machines, means, methods, or steps, presently existing or later to be developed that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized according to the present invention. Accordingly, the appended claims are intended to include within their scope such processes, devices, means, methods, or steps.
Claims (10)
1. A cooling system for a new energy vehicle battery pack, characterized in that the battery pack comprises battery modules arranged in a stack, the cooling system comprising a first cooling means (1) in thermal contact with a first surface of the battery modules and a second cooling means (2) in thermal contact with the first cooling means, at least a part of the second cooling means (2) extending in a substantially vertical direction from the first cooling means (1) through the battery modules arranged in a stack to be in thermal contact with a second surface of the battery modules arranged in a stack.
2. A cooling system according to claim 1, characterized in that the upper surface of the first cooling device (1) is in thermal contact with a first surface of the battery module, and the second cooling device (2) comprises a first portion (21) and a second portion (22) substantially perpendicular to each other, the first portion (21) extending in a substantially perpendicular direction from the first cooling device (1) through the stacked battery modules to be in thermal contact with a second surface of the stacked battery modules, the second portion (22) being in thermal contact with a lower surface of the first cooling device (1).
3. The cooling system according to claim 1, wherein the first surface is a bottom surface of a battery module, the first cooling device (1) is horizontally disposed on the bottom surface of the battery module, and the first cooling device (1) is a liquid cooling plate that conducts heat through an internal cooling liquid.
4. A cooling system according to claim 2, characterised in that the first part (21) of the second cooling means (2) is a thermally conducting solid copper plate in thermal contact with the second surface of the battery module, which second surface is the side of the battery module.
5. The cooling system according to claim 2, wherein the first portion (21) of the second cooling device (2) is a copper frame in thermal contact with a second surface of the battery module, wherein the second surface is four sides of a side of the battery module.
6. The cooling system according to any of the claims 3, characterized in that the second cooling means (2) is welded, snapped or riveted in thermal contact with the first cooling means (1).
7. A cooling system according to claim 3, characterised in that the first cooling means (1) is a water-cooled plate made by welding of die-tubes and the second cooling means (2) is a copper plate of L-shape heat-conducting material in thermal contact with the die-tubes by welding.
8. A cooling system according to any one of claims 1-7, characterised in that the first cooling means comprises an inlet and an outlet for the inlet and outlet of a cooling medium.
9. A new energy automobile battery pack, characterized in that the new energy automobile battery pack comprises the cooling system according to any one of claims 1-8.
10. A new energy automobile, characterized in that the new energy automobile comprises the battery pack according to claim 9 or the cooling system according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137868.5A CN110797606A (en) | 2019-11-18 | 2019-11-18 | Cooling system for new energy automobile battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911137868.5A CN110797606A (en) | 2019-11-18 | 2019-11-18 | Cooling system for new energy automobile battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110797606A true CN110797606A (en) | 2020-02-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911137868.5A Pending CN110797606A (en) | 2019-11-18 | 2019-11-18 | Cooling system for new energy automobile battery pack |
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| Country | Link |
|---|---|
| CN (1) | CN110797606A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809427A (en) * | 2020-05-27 | 2021-12-17 | 比亚迪股份有限公司 | Heat radiation structure and have its battery package subassembly, vehicle |
-
2019
- 2019-11-18 CN CN201911137868.5A patent/CN110797606A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113809427A (en) * | 2020-05-27 | 2021-12-17 | 比亚迪股份有限公司 | Heat radiation structure and have its battery package subassembly, vehicle |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200214 |