CN110061328B - Battery cooling system - Google Patents
Battery cooling system Download PDFInfo
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- CN110061328B CN110061328B CN201910451763.0A CN201910451763A CN110061328B CN 110061328 B CN110061328 B CN 110061328B CN 201910451763 A CN201910451763 A CN 201910451763A CN 110061328 B CN110061328 B CN 110061328B
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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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- 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
- H01M10/63—Control systems
- H01M10/635—Control systems based on ambient temperature
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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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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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
- 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
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a battery cooling system, which comprises a cooling flow channel and a transmission mechanism, wherein the cooling flow channel comprises a latticed flow channel formed by a transverse flow channel and a longitudinal flow channel which are vertically communicated with each other; the transmission mechanism comprises a longitudinal rack, a transverse rack and a reversing plate assembly; the reversing plate component comprises a fixed rod, a reversing gear and a reversing plate, wherein the reversing gear and the reversing plate are respectively and fixedly arranged at the upper part and the lower part of the fixed rod; the longitudinal rack is fixedly connected with one end of a plurality of transverse racks, and the transverse racks are distributed in parallel and respectively and correspondingly arranged above each transverse flow channel; the longitudinal rack is driven by the motor to reciprocate along the transverse direction, and the transverse rack is meshed with the reversing gear. This technical scheme can change the flow direction of coolant liquid to satisfy different heat dissipation demands.
Description
Technical Field
The invention relates to the technical field of automobile batteries, in particular to a battery cooling system.
Background
In recent years, power batteries are widely applied to various products such as new energy vehicles, mobile communication equipment and energy storage devices, and when the batteries work, a large amount of heat is generated, if the heat cannot be effectively dissipated, the heat is accumulated in the batteries, so that the aging of the batteries is accelerated, and even danger is generated in severe cases. Therefore, the power battery needs to be equipped with a cooling system for heat dissipation.
At present, in a design scheme of a cooling system of a power battery, a battery module is generally cooled by arranging a cooling channel around the battery module. However, the flowing direction of the cooling liquid in the cooling flow channel is fixed, the heat exchange capability of the cooling flow channel is limited, and the cooling performance requirements of the power battery under different working conditions cannot be met.
Disclosure of Invention
In order to overcome the above-mentioned disadvantages of the prior art, it is an object of the present invention to provide a battery cooling system capable of changing the flow direction of a cooling fluid to meet different heat dissipation requirements.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a battery cooling system comprises a cooling flow passage and a transmission mechanism, wherein the cooling flow passage comprises a latticed flow passage formed by a transverse flow passage and a longitudinal flow passage which are mutually and vertically communicated, so that the battery cooling system is convenient for expansion design and can adapt to battery modules in different shapes; one end of the cooling channel is provided with a cooling liquid inlet, and the other end of the cooling channel is provided with a cooling liquid outlet; the transmission mechanism comprises a longitudinal rack, a transverse rack and a reversing plate assembly. The reversing plate component comprises a fixed rod, a reversing gear and a reversing plate, wherein the reversing gear and the reversing plate are respectively and fixedly arranged at the upper part and the lower part of the fixed rod; the size of the reversing plate is the same as that of the inner section of the longitudinal flow passage, and the size of the inner section of the longitudinal flow passage is not smaller than that of the inner section of the transverse flow passage; a longitudinal rack is arranged above the longitudinal flow passage on the outermost side of the cooling flow passage, the longitudinal rack is fixedly connected with one end of a plurality of transverse racks, and the plurality of transverse racks are distributed in parallel and are respectively and correspondingly arranged above each transverse flow passage; the longitudinal rack is driven by the motor to reciprocate along the transverse direction, and the transverse rack is meshed with the reversing gear.
When the longitudinal rack moves to one side provided with the transverse rack, the transverse rack is in meshing transmission with the reversing gear, the reversing gear drives the reversing plate to rotate 90 degrees clockwise to the end face of the transverse flow channel, the transverse flow channel is closed, and at the moment, the cooling liquid flows in the longitudinal flow channel, namely the flowing direction of the cooling liquid is longitudinal; when the longitudinal rack moves to the other side, the transverse rack is in meshing transmission with the reversing gear, the reversing gear drives the reversing plate to rotate 90 degrees anticlockwise to the end face of the longitudinal flow channel, the longitudinal flow channel is closed, and at the moment, cooling liquid flows in the transverse flow channel, namely the flow direction of the cooling liquid is transverse; according to the battery cooling system provided by the technical scheme, the flowing direction of cooling liquid in the cooling flow channel can be changed through the transmission mechanism formed by the longitudinal rack, the transverse rack and the reversing plate assembly.
Preferably, one end of the longitudinal rack is provided with a driving rack, the driving rack is meshed with the driving gear, the shaft of the driving gear is connected with the output shaft of the motor, and the longitudinal rack is driven by the motor to reciprocate along the transverse direction. When the motor drives the driving gear to rotate clockwise, the driving rack drives the longitudinal rack to move towards one side provided with the transverse rack; when the motor drives the driving gear to rotate anticlockwise, the driving rack drives the longitudinal racks to move in opposite directions together.
More preferably, a plurality of rack parts are arranged on the transverse rack at equal intervals, and the rack parts are respectively meshed with the reversing gear; preferably, the reversing gear is a quarter gear, and the rotating angle is 0-90 degrees.
Preferably, the plurality of transverse racks are connected through the longitudinal pull rod, so that the pretightening force between the reversing gear and the transverse racks is increased, and the transmission is ensured to be effective; more preferably, a plurality of connecting holes are equidistantly formed in the transverse rack, and the longitudinal pull rod is fixedly connected to the connecting holes through bolts, so that the connection is firmer.
When the battery cooling system works, because the cooling liquid flows transversely and passes through more battery modules than longitudinally, namely exchanges heat with more battery modules, the temperature difference between the cooling liquid and the battery modules is smaller and smaller, and the heat exchange efficiency is poorer and poorer; and the battery module that passes through when coolant liquid vertically flows is small in quantity, can keep great difference in temperature between coolant liquid and the battery module, and heat exchange efficiency is higher.
Preferably, all be equipped with heat conduction silica gel between each side of battery module and the cooling runner, every battery module has four side contact heat conduction silica gel promptly, has increased heat transfer area, has improved heat transfer rate.
More preferably, a temperature sensor is arranged on the battery module and electrically connected with a controller, and the controller is electrically connected with the motor. When the working temperature is higher than a preset temperature threshold value, the controller controls the motor to rotate clockwise, the transmission mechanism closes the transverse flow channel, and the cooling liquid flows longitudinally; when the working temperature is lower than a preset temperature threshold value, the controller controls the motor to rotate anticlockwise, the transmission mechanism closes the longitudinal flow channel, and the cooling liquid flows transversely; the battery cooling system in the technical scheme can automatically change the flowing direction of the cooling liquid according to different heat exchange requirements, and realizes the heat exchange performance of the battery body at different environmental temperatures.
Preferably, the inner wall of at least one end of the longitudinal flow channel is provided with a fixed ring sleeve, and the fixed rod penetrates through the fixed ring sleeve to install the reversing plate in the longitudinal flow channel; more preferably, the fixed ring sleeve comprises an upper ring sleeve and a lower ring sleeve, the upper ring sleeve is an open ring sleeve and is arranged at the upper part of the inner wall of the longitudinal flow channel, and the lower ring sleeve is a closed ring sleeve and is arranged at the bottom of the inner wall of the longitudinal flow channel, so that the reversing plate assembly is convenient to mount; the fixed rod sequentially penetrates through the upper ring sleeve and the lower ring sleeve from top to bottom and is arranged inside the longitudinal flow channel. When the device is specifically implemented, the fixed ring sleeve can be fixed on the inner wall of the longitudinal flow passage through welding or bolts, or the fixed ring sleeve and the longitudinal flow passage are of an integrally formed structure.
Preferably, one end of the transverse rack is fixedly connected with the longitudinal rack by a rivet, a screw or a plastic connecting buckle.
In order to ensure that the cooling liquid can smoothly flow out from a cooling liquid outlet when flowing longitudinally or transversely, in one technical scheme, a first rack part closest to a longitudinal rack on the last row of transverse racks and rack parts of all transverse racks on a middle flow passage are straight racks or left-handed helical teeth, and other rack parts except the first rack part on the last row of transverse racks are right-handed helical teeth; the rack part at the tail end of each transverse rack is a right-handed helical tooth.
In another technical scheme, the cross-sectional dimension of the outer side flow channel of the cooling flow channel is larger than that of the middle flow channel, the outer side flow channel is a flow channel forming four sides of the outer side of the cooling flow channel, and the middle flow channel is each transverse flow channel and each longitudinal flow channel in the middle of the cooling flow channel.
Preferably, the transverse flow passages and the longitudinal flow passages are formed by molding or assembling hard heat conduction materials, and have the functions of bearing and heat exchange.
Preferably, the reversing plate, the fixing rod and the reversing gear of the reversing plate assembly are integrally molded or welded into a whole by corrosion-resistant plastic or metal materials, and the reversing gear drives the reversing plate to rotate together through the fixing rod.
Compared with the prior art, the invention has the beneficial effects that:
this technical scheme provides a battery cooling system, through the drive mechanism that vertical rack, horizontal rack and reversing plate subassembly constitute, can change the flow direction of cooling liquid in the cooling runner to satisfy different battery heat dissipation demands.
Drawings
Fig. 1 is a schematic top view of a battery cooling system according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of the reversing plate assembly of fig. 1.
Fig. 3 is a schematic structural diagram of a transmission mechanism according to an embodiment of the present invention.
Fig. 4 is a top view of a reversing plate assembly in one embodiment of the invention.
Fig. 5 is a side view of a reversing plate assembly in one embodiment of the invention.
Fig. 6 is a schematic structural diagram of a longitudinal rack in an embodiment of the present invention.
Fig. 7 is a schematic top view of a battery cooling system according to another embodiment of the present invention.
The labels in the figure are: 1. a transverse flow passage; 2. a longitudinal flow passage; 3. a coolant inlet; 4. a coolant outlet; 5. a longitudinal rack; 6. a transverse rack; 7. fixing the rod; 8. a reversing gear; 9. a reversing plate; 10. a battery module; 11. a drive rack; 12. a rack portion; 13. a longitudinal tie rod; 14. heat conducting silica gel; 15. an upper ring sleeve; 16. a lower ring sleeve; 17. an outer flow channel; 18. and an intermediate flow passage.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments is as follows:
the first embodiment is as follows: referring to fig. 1-2, a battery cooling system includes a cooling channel and a transmission mechanism, wherein the cooling channel includes a grid-shaped channel formed by a transverse channel 1 and a longitudinal channel 2 which are vertically communicated with each other; one end of the cooling channel is provided with a cooling liquid inlet 3, and the other end is provided with a cooling liquid outlet 4; referring to fig. 3, the transmission mechanism comprises a longitudinal rack 5, a transverse rack 6 and a reversing plate assembly; referring to fig. 4-5, the reversing plate assembly includes a fixing rod 7, and a reversing gear 8 and a reversing plate 9 respectively fixedly disposed on an upper portion and a lower portion of the fixing rod 7, wherein the reversing plate 9 is rotatably disposed on at least one end of the longitudinal flow passage 2 for closing the longitudinal flow passage 2 or the transverse flow passage 1; a longitudinal rack 5 is arranged above the longitudinal flow channel 2 at the outermost side of the cooling flow channel, the longitudinal rack 5 is fixedly connected with one end of a plurality of transverse racks 6, and the transverse racks 6 are distributed in parallel and are respectively and correspondingly arranged above the transverse flow channels 1; the longitudinal rack 5 is driven by a motor to reciprocate along the transverse direction, and the transverse rack 6 is meshed with the reversing gear 8.
In specific implementation, the plurality of grids formed between the transverse flow channels 1 and the longitudinal flow channels 2 are respectively provided with the battery modules 10, when the battery cooling system works, as the cooling liquid flows transversely and passes through more battery modules 10 than longitudinally, the temperature difference between the cooling liquid and the battery modules 10 is smaller and smaller, the heat exchange efficiency is lower, and the battery cooling system is suitable for the condition of small heat dissipation requirement of the battery; and the battery module 10 that passes through when the coolant liquid vertically flows is small in quantity, can keep great difference in temperature between coolant liquid and the battery module 10, and heat exchange efficiency is higher, is applicable to the big condition of battery heat dissipation demand.
In the embodiment, when the longitudinal rack 5 moves towards the side provided with the transverse rack 6, the transverse rack 6 is in meshing transmission with the reversing gear 8, the reversing gear 8 drives the reversing plate 9 to rotate clockwise by 90 degrees to the end face of the transverse flow channel 1, the transverse flow channel 1 is closed, and the cooling liquid flows longitudinally; when the longitudinal rack 5 moves to the other side, the transverse rack 6 is in meshed transmission with the reversing gear 8, the reversing gear 8 drives the reversing plate 9 to rotate 90 degrees anticlockwise to the end face of the longitudinal flow channel 2, the longitudinal flow channel 2 is closed, and cooling liquid flows transversely.
In one embodiment, referring to fig. 6, a driving rack 11 is disposed at one end of the longitudinal rack 5, the driving rack 11 is engaged with a driving gear, a shaft of the driving gear is connected to an output shaft of a motor, and the longitudinal rack 5 is driven by the motor to reciprocate in a transverse direction.
In one embodiment, a plurality of rack parts 12 are equidistantly arranged on the transverse rack 6, the rack parts 12 are respectively meshed with the reversing gear 8, the reversing gear 8 is a quarter gear, and the maximum rotating angle is 90 degrees.
When the battery cooling system works, on one hand, in order to ensure that the cooling liquid smoothly flows out of the cooling liquid outlet 4 in the last row of transverse flow channels 1 when flowing longitudinally, the first reversing plate 9 on the last row of transverse flow channels 1, which is close to the longitudinal rack 5, needs to rotate in the same direction as the other reversing plates 9 on the same transverse flow channel 1, but in the same direction as the other reversing plates 9 on the middle flow channel, and the middle flow channel is each transverse flow channel and each longitudinal flow channel arranged in the middle of the battery cooling system.
In specific implementation, the rotation directions of the reversing plates 9 can be different by adjusting the rotation directions of the rack parts 12 on the transverse racks 6; for example, when the flow direction of the cooling liquid is changed from the transverse direction to the longitudinal direction, a rack part 12 of the last row of transverse racks 6 closest to the longitudinal rack 5 and a rack part 12 of each transverse rack 6 on the intermediate flow passage all adopt straight racks or left-handed helical teeth, so as to drive the corresponding reversing plate 9 to rotate 90 degrees clockwise, and close the transverse flow passage 1; and the other rack parts 12 on the last row of transverse racks 6 adopt right-handed helical teeth to drive the corresponding reversing plates 9 to rotate 90 degrees anticlockwise and attach to the inner wall of the longitudinal flow channel 2, so that the last row of transverse flow channel 1 cannot be closed, and the cooling liquid is ensured to flow from the last row of transverse flow channel 1 to the cooling liquid outlet 4.
On the other hand, in order to ensure that the coolant flows out of the coolant outlet 4 smoothly in the last row of longitudinal channels 2 when flowing transversely, the direction of rotation of each diverter plate 9 located in the last row of longitudinal channels 2 may be different from the direction of rotation of the other diverter plates 9 in the corresponding transverse channels 1.
In specific implementation, the rotation directions of the reversing plates 9 can be different by adjusting the rotation directions of the rack parts 12 on the transverse racks 6; for example, when the flow direction of the cooling liquid is changed from the longitudinal direction to the transverse direction, the rack portion 12 at the tail end of each transverse rack 6 on the middle flow channel can adopt right-handed helical teeth to drive the corresponding reversing plate 9 to rotate 90 degrees clockwise, and the reversing plate is attached to the inner wall of the transverse flow channel 1, so that the last row of longitudinal flow channels 2 cannot be sealed, and the cooling liquid can be guaranteed to flow from the last row of longitudinal flow channels 2 to the cooling liquid outlet 4; the other rack parts 12 adopt straight racks or left-handed helical teeth to drive the corresponding reversing plates 9 to rotate 90 degrees anticlockwise, and other middle longitudinal flow channels 2 are closed; wherein, the head and the tail of the last column of longitudinal flow channels 2 do not need to be provided with reversing plates 9.
In one embodiment, referring to fig. 3, a plurality of transverse racks 6 are connected by a longitudinal pull rod 13, so that the pretightening force between the reversing gear 8 and the transverse racks 6 can be increased, and the effective transmission is ensured.
In one embodiment, the heat conducting silica gel 14 is disposed between each side surface of the battery module 10 and the cooling channel, so that the heat exchange area is increased, and the heat exchange rate is increased.
In one of the embodiments, a temperature sensor is arranged on the battery module 10, the temperature sensor is electrically connected with the controller, the controller is electrically connected with the motor, the rotation direction of the motor is controlled according to the temperature of the battery module 10 measured by the temperature sensor, the flowing direction of the cooling liquid can be automatically changed according to different heat exchange requirements, and the heat exchange performance of the battery body under different environmental temperatures is realized.
In one embodiment, referring to fig. 5, an upper ring 15 and a lower ring 16 are disposed on an inner wall of at least one end of the longitudinal flow channel 2, and the fixing rod 7 sequentially penetrates through the upper ring 15 and the lower ring 16 from top to bottom to be installed inside the longitudinal flow channel 2, wherein the upper ring 15 is an open ring, and the lower ring 16 is a closed ring, so as to facilitate installation of the reversing plate assembly.
In one embodiment, one end of the transverse rack 6 is fixedly connected to the longitudinal rack 5 by means of rivets, screws or plastic fasteners. The transverse flow channels 1 and the longitudinal flow channels 2 are formed by die casting or assembling hard heat conduction materials and have the functions of bearing and heat exchange. The reversing plate 9, the fixed rod 7 and the reversing gear 8 of the reversing plate component are integrally molded or welded into a whole by corrosion-resistant plastic or metal materials.
Example two: referring to fig. 7, a battery cooling system includes a cooling channel and a transmission mechanism, wherein the cooling channel includes a grid-shaped channel formed by a transverse channel and a longitudinal channel which are vertically communicated with each other; one end of the cooling channel is provided with a cooling liquid inlet, and the other end of the cooling channel is provided with a cooling liquid outlet; the transmission mechanism comprises a longitudinal rack, a transverse rack and a reversing plate assembly; the reversing plate component comprises a fixed rod, a reversing gear and a reversing plate, wherein the reversing gear and the reversing plate are respectively and fixedly arranged at the upper part and the lower part of the fixed rod; the reversing plate has the same size with the inner sections of the longitudinal flow passage and the transverse flow passage and is rotatably arranged at least one end in the longitudinal flow passage; a longitudinal rack is arranged above the longitudinal flow passage on the outermost side of the cooling flow passage, the longitudinal rack is fixedly connected with one end of a plurality of transverse racks, and the plurality of transverse racks are distributed in parallel and are respectively and correspondingly arranged above each transverse flow passage; the longitudinal rack is driven by the motor to reciprocate along the transverse direction, and the transverse rack is meshed with the reversing gear.
In this embodiment, the cross-sectional dimension of the outer side flow channel 17 of the battery cooling system may be larger than the cross-sectional dimension of the middle flow channel 18, wherein the outer side flow channel 17 is a flow channel forming four outer sides of the battery cooling system, and includes two rows of transverse flow channels and two columns of longitudinal flow channels; the intermediate flow channels 18 are each of transverse flow channels and longitudinal flow channels provided in the middle of the battery cooling system. The cross-sectional dimension of the intermediate flow channel 18 is the same as the dimension of the reversing plate, so that the reversing plate is ensured not to close the outer flow channel 17 in two working states, and the cooling liquid can smoothly flow to the cooling liquid outlet through the outer flow channel 17 when flowing transversely or longitudinally.
In one of them embodiment, can set up the bearing board at cooling runner bottom, the bearing board is used for placing battery module and seals the runner bottom, and cooling runner has heat transfer and bearing function concurrently promptly, is favorable to the lightweight design of battery body. The cooling runner top is equipped with the apron, and the lower part of dead lever and reversing plate all are located vertical runner inside, and the reversing gear is located vertical runner outside, is equipped with the space or the through-hole that supplies the dead lever of reversing gear below to pass on the apron, and space or through-hole are sealed through sealing washer or gasket to prevent that the coolant liquid from revealing.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (15)
1. A battery cooling system, characterized in that,
the cooling device comprises a cooling runner and a transmission mechanism, wherein the cooling runner comprises a latticed runner formed by a transverse runner and a longitudinal runner which are mutually and vertically communicated, and the transmission mechanism comprises a longitudinal rack, a transverse rack and a reversing plate assembly;
the reversing plate assembly comprises a fixed rod, a reversing gear and a reversing plate, wherein the reversing gear and the reversing plate are respectively and fixedly arranged at the upper part and the lower part of the fixed rod, and the reversing plate is rotatably arranged at least one end of the longitudinal flow passage and is used for closing the longitudinal flow passage or the transverse flow passage;
the longitudinal racks are arranged above the longitudinal flow channel on the outermost side of the cooling flow channel, the longitudinal racks are fixedly connected with one ends of the transverse racks, and the transverse racks are distributed in parallel and are respectively and correspondingly arranged above the transverse flow channels; the longitudinal rack is driven by a motor to reciprocate along the transverse direction, and the transverse rack is meshed with the reversing gear.
2. The battery cooling system according to claim 1, wherein a driving rack is provided at one end of the longitudinal rack, the driving rack is engaged with a driving gear, and a shaft of the driving gear is connected with an output shaft of the motor.
3. The battery cooling system according to claim 1, wherein a plurality of rack portions are provided on the transverse rack at equal intervals, and the rack portions are respectively engaged with the reversing gear.
4. The battery cooling system of claim 3, wherein the reversing gear is a quarter gear.
5. The battery cooling system according to claim 1, wherein the plurality of transverse racks are connected by a longitudinal tie.
6. The battery cooling system according to claim 5, wherein a plurality of connection holes are equidistantly formed in the transverse rack, and the longitudinal tie bar is fixedly connected to the connection holes by bolts.
7. The battery cooling system according to claim 1, wherein a plurality of grids are formed between the transverse flow channels and the longitudinal flow channels of the cooling flow channels, and battery modules are arranged in the grids.
8. The battery cooling system according to claim 7, wherein a thermally conductive silicone is disposed between each side of the battery module and the cooling channel.
9. The battery cooling system according to claim 7, wherein a temperature sensor is disposed on the battery module, the temperature sensor is electrically connected to a controller, and the controller is electrically connected to the motor.
10. The battery cooling system according to claim 1, wherein a fixing ring is provided on an inner wall of at least one end of the longitudinal flow passage, and the fixing rod penetrates the fixing ring to mount the direction changing plate inside the longitudinal flow passage.
11. The battery cooling system according to claim 10, wherein the fixing collar includes an upper collar and a lower collar, the upper collar is an open collar and is provided on an upper portion of the inner wall of the longitudinal flow passage, and the lower collar is a closed collar and is provided on a bottom portion of the inner wall of the longitudinal flow passage.
12. The battery cooling system according to claim 3, wherein a first rack portion of the last row of the transverse rack closest to the longitudinal rack and rack portions of the transverse racks on the intermediate flow passage are both straight racks or left-handed helical teeth, and other rack portions of the last row of the transverse rack other than the first rack portion are right-handed helical teeth.
13. The battery cooling system according to claim 12, wherein the rack portion at each lateral rack end is right-handed helical teeth.
14. The battery cooling system according to claim 1, wherein a cross-sectional dimension of an outer flow passage of the cooling flow passage is larger than a cross-sectional dimension of an intermediate flow passage, the outer flow passage being a flow passage that constitutes four outer sides of the cooling flow passage, the intermediate flow passage being each of a lateral flow passage and a longitudinal flow passage in the middle of the cooling flow passage.
15. The battery cooling system according to claim 1, wherein one end of the transverse rack is fixedly connected to the longitudinal rack by a rivet, screw, or plastic connector.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910451763.0A CN110061328B (en) | 2019-05-28 | 2019-05-28 | Battery cooling system |
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| CN201910451763.0A CN110061328B (en) | 2019-05-28 | 2019-05-28 | Battery cooling system |
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| CN110061328A CN110061328A (en) | 2019-07-26 |
| CN110061328B true CN110061328B (en) | 2021-06-01 |
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| CN103985831B (en) * | 2014-05-16 | 2016-03-09 | 力帆实业(集团)股份有限公司 | A kind of thermal-control battery case and temperature control method thereof |
| US10741891B2 (en) * | 2015-11-03 | 2020-08-11 | Ford Global Technologies, Llc | Traction battery assembly |
| CN207409571U (en) * | 2017-11-27 | 2018-05-25 | 福建荣华科技有限公司 | Lithium battery storing apparatus and lithium battery pack |
| CN208284516U (en) * | 2018-04-16 | 2018-12-25 | 泰州纳新新能源科技有限公司 | A kind of lithium ion battery packet |
| CN109066006A (en) * | 2018-07-25 | 2018-12-21 | 杭州捷能科技有限公司 | A kind of battery system liquid cooling system and its assembly method |
| CN109449528B (en) * | 2018-09-27 | 2021-08-03 | 江苏大学 | Phase-change energy storage liquid cooling plate, battery pack active thermal management system and control method |
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2019
- 2019-05-28 CN CN201910451763.0A patent/CN110061328B/en active Active
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