CN108321457B - Lithium battery pack for new energy automobile - Google Patents
Lithium battery pack for new energy automobile Download PDFInfo
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- CN108321457B CN108321457B CN201711387795.6A CN201711387795A CN108321457B CN 108321457 B CN108321457 B CN 108321457B CN 201711387795 A CN201711387795 A CN 201711387795A CN 108321457 B CN108321457 B CN 108321457B
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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
- B60L50/00—Electric propulsion with power supplied within the vehicle
- B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
- B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
- B60L50/64—Constructional details of batteries specially adapted for electric vehicles
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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
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of 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
- H01M10/62—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
- H01M10/653—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
- H01M10/6561—Gases
- H01M10/6563—Gases with forced flow, e.g. by blowers
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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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- 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 the technical field of new energy automobile power accessories, in particular to a lithium battery pack for a new energy automobile, which can realize uniform heat dissipation among multiple groups of batteries and prolong the service life of the batteries; the condition that the connection parts of the multiple groups of batteries are loosened due to external impact is prevented, and the use reliability is improved; the charging device comprises a protective shell, a first charging head and a first protective circuit board, wherein multiple groups of batteries are connected in series; the heat dissipation fan comprises a plurality of groups of heat conducting fins, two groups of heat dissipation fans and a transverse pull rod, wherein an upper air outlet and a lower air outlet are respectively formed in the upper end and the lower end of the outer wall of the right side of the protection shell, and the input ends of the two groups of heat dissipation fans are communicated with the upper air outlet and the lower air outlet; the damping device is characterized by further comprising an upper top plate, a lower top plate, an upper bottom plate, a lower bottom plate, two groups of first threaded rods, two groups of second threaded rods, two groups of first nuts and two groups of second nuts, wherein first damping springs are arranged, and rubber damping cushions are arranged between the upper top plate and the lower bottom plate and between the upper bottom plate and the lower bottom plate.
Description
Technical Field
The invention relates to the technical field of new energy automobile power accessories, in particular to a lithium battery pack for a new energy automobile.
Background
As is well known, energy and environmental protection forms are increasingly tense, batteries are increasingly popular as power energy, lithium batteries for new energy automobiles gradually become the first choice in the field of new energy due to the remarkable advantages of high energy density, small volume, light weight, environmental protection, no pollution, no memory effect and the like, are auxiliary devices for electric automobiles to carry out electric energy transmission so as to better realize automobile power transmission, and are widely used in the fields of electric energy storage and new energy automobile power supply; the lithium battery pack for the existing new energy automobile comprises a protective shell, a first charging head and a first protective circuit board, wherein a working cavity is formed in the protective shell, a plurality of groups of batteries are sequentially arranged in the working cavity and are connected in series, a first thermal switch and a first alarm indicator lamp are arranged on each group of batteries, the plurality of groups of batteries are electrically connected with the first protective circuit board through the first thermal switch, the first charging head is installed on the side wall of the left end of the protective shell and is electrically connected with input ends of the plurality of groups of batteries through a transformer, a first discharging port is further formed in the outer wall of the right side of the protective shell, and the first discharging port is electrically connected with output ends of the plurality of groups of batteries; when the lithium battery pack for the existing new energy automobile is used, firstly, a plurality of groups of batteries are charged through a first charging head, then, a power supply input line of an automobile motor is inserted into a first discharging port to be communicated with the plurality of groups of batteries, and the electric quantity stored in the plurality of groups of batteries is supplied to the motor for use; the lithium battery pack for the existing new energy automobile is found to have poor heat dissipation performance in use, and the service life of the battery pack is influenced due to the fact that the temperature of each battery is different when a plurality of groups of batteries work, so that inconsistency is generated among the batteries; and when the multiple groups of batteries are impacted by external force, the connection parts are easy to loosen, so that the output performance of the battery pack is influenced, and the use reliability is reduced.
Disclosure of Invention
In order to solve the technical problems, the invention provides a battery pack which can uniformly dissipate heat among a plurality of groups of batteries and prolong the service life of the batteries; and prevent that multiunit battery from leading to the not hard up condition in connection position because of external striking, improve the lithium cell group that uses for the new energy automobile of reliability.
The lithium battery pack for the new energy automobile comprises a protective shell, a first charging head and a first protective circuit board, wherein a working cavity is formed in the protective shell, a plurality of groups of batteries are sequentially arranged in the working cavity and are connected in series, a first thermal switch and a first alarm indicator lamp are arranged on each group of batteries, the plurality of groups of batteries are electrically connected with the first protective circuit board through the first thermal switch, the first charging head is installed on the side wall of the left end of the protective shell and is electrically connected with input ends of the plurality of groups of batteries through a transformer, a first discharging port is further formed in the outer wall of the right side of the protective shell, and the first discharging port is electrically connected with output ends of the plurality of groups of batteries; comprises a plurality of groups of heat-conducting fins, two groups of heat-radiating fans and a transverse pull rod, wherein one side end surfaces of the plurality of groups of heat-conducting fins are respectively connected with the front side wall and the rear side wall of the plurality of groups of batteries, and a connecting rod is arranged among the multiple groups of heat-conducting fins, one end of the connecting rod is connected with the other end face of the multiple groups of heat-conducting fins, the other end of the connecting rod is connected with the transverse pull rod, the upper end and the lower end of the outer wall of the left side of the protective shell are respectively provided with an upper air inlet and a lower air inlet, the upper air inlet and the lower air inlet are communicated with the working cavity, the upper end and the lower end of the outer wall of the right side of the protective shell are respectively provided with an upper air outlet and a lower air outlet, the upper air outlet and the lower air outlet are communicated with the working cavity, the two groups of heat dissipation fans are respectively arranged at the upper end and the lower end of the outer wall at the right side of the protective shell, the input ends of the two groups of heat dissipation fans are communicated with the upper air outlet and the lower air outlet, and the output ends of the two groups of heat dissipation fans are communicated with the outside; the damping device also comprises an upper top plate, a lower top plate, an upper bottom plate, a lower bottom plate, two groups of first threaded rods, two groups of second threaded rods, two groups of first nuts and two groups of second nuts, wherein the upper top plate and the lower top plate are positioned above the protective shell, through holes are respectively formed in the left side and the right side of the upper top plate and the lower top plate, first damping springs are also arranged in the through holes, the top ends of the two groups of first threaded rods are inserted into and extend out of the outer side from the bottom ends of the first damping springs in the through holes and are respectively in threaded connection with the two groups of first nuts, the upper bottom plate and the lower bottom plate are positioned below the protective shell, through holes are respectively formed in the left side and the right side of the upper bottom plate and the lower bottom plate, second damping springs are also arranged in the through holes, the top ends of the two groups of second threaded rods are inserted into and extend out of the outer side from, rubber shock absorption pads are arranged between the upper top plate and the lower top plate and between the upper bottom plate and the lower bottom plate.
The lithium battery pack for the new energy automobile further comprises a plurality of groups of spare batteries, a second protection circuit board and a second charging head, wherein the plurality of groups of spare batteries are sequentially arranged at the bottom end of the working cavity, the plurality of groups of spare batteries are arranged below the plurality of groups of batteries, the plurality of groups of spare batteries are connected in series, a second thermal switch and a second alarm indicator lamp are arranged on each group of spare batteries, the plurality of groups of spare batteries are electrically connected with the second protection circuit board through the second thermal switch, the second charging head is arranged below the left side end side wall of the protection shell and is electrically connected with the input ends of the plurality of groups of spare batteries through a transformer, a second discharging port is further arranged below the right side outer wall of the protection shell, and the second discharging port is electrically connected with the output ends of the plurality of groups of spare batteries.
The lithium battery pack for the new energy automobile further comprises an upper heat conduction support, a middle heat conduction support and a lower heat conduction support, wherein the upper heat conduction support, the middle heat conduction support and the lower heat conduction support are all located in the working cavity, the upper heat conduction support is installed above the multiple groups of batteries, the middle heat conduction support is installed between the multiple groups of batteries and the multiple groups of standby batteries, the lower heat conduction support is installed below the multiple groups of standby batteries, cavities are formed in the upper heat conduction support, the middle heat conduction support and the lower heat conduction support, multiple groups of heat dissipation holes are further formed in the outer walls of the upper heat conduction support, the middle heat conduction support and the lower heat conduction support, and the multiple groups of heat dissipation holes are communicated with the.
The lithium battery pack for the new energy automobile further comprises an automatic switching circuit box, a first cable and a second cable, wherein a circuit cavity is arranged in the automatic switching circuit box, and the outer side wall of the left end of the automatic switching circuit box is provided with a first power connection port and a second power connection port, the first power interface and the second power interface are both communicated with the circuit cavity, the first cable and the second cable are both positioned in the circuit cavity, the input ends of the first cable and the second cable are electrically connected with the first power connection port and the second power connection port, the outer wall of the right side of the automatic switching circuit box is also provided with a power transmission port, the power transmission port is communicated with the circuit cavity, the output ends of the first cable and the second cable are electrically connected with the power transmission port, and be provided with first circuit breaker, normally open switch and relay on the first cable, be provided with second circuit breaker and normally closed switch on the second cable.
The lithium battery pack for the new energy automobile further comprises two groups of high-efficiency filter cotton, and the two groups of high-efficiency filter cotton are respectively installed at the upper air inlet and the lower air inlet.
The lithium battery pack for the new energy automobile has a detachable protective shell, and comprises an upper top cover, a lower bottom cover, four groups of connecting blocks and four groups of hexagon socket head cap screws, wherein the top end and the bottom end of the protective shell are respectively provided with an inlet and an outlet, the inlet and the outlet are communicated with the working cavity, the top end of the upper top cover is connected with the bottom end of the lower top plate, the bottom end of the lower bottom cover is connected with the top end of the upper bottom plate, the four groups of connecting blocks are respectively arranged on the top end and the bottom end of the left outer wall and the right outer wall of the protective shell, counter bores are arranged in the four groups of connecting blocks, upper threaded holes are arranged at the bottom ends of the left side and the right side of the upper top cover, the top ends of the left side and the right side of the lower bottom cover are respectively provided with a lower threaded hole, the upper threaded holes and the lower threaded holes are respectively concentrically corresponding to the counter bores arranged on the four groups of connecting blocks, and the four groups of socket head cap screws respectively penetrate through the counter bores and are inserted into the upper threaded holes and the lower threaded holes in a screwed mode.
According to the lithium battery pack for the new energy automobile, the multiple groups of heat conducting fins and the connecting rods are all made of heat conducting silicone materials, and the upper heat conducting support, the middle heat conducting support and the lower heat conducting support are all made of aluminum materials.
According to the lithium battery pack for the new energy automobile, the wire passing pipes are arranged inside the upper heat conduction support, the middle heat conduction support and the lower heat conduction support.
The lithium battery pack for the new energy automobile further comprises a first conductive wire and a second conductive wire, wherein the input end of the first conductive wire is electrically connected with the first discharging port, the output end of the first conductive wire is electrically connected with the first power connection port, the input end of the second conductive wire is electrically connected with the second discharging port, and the output end of the second conductive wire is electrically connected with the second power connection port.
Compared with the prior art, the invention has the beneficial effects that: through the arrangement, the temperature generated when the battery is used is reduced through the radiating fins and the radiating fan, so that the heat radiation is uniform and efficient, the effective use of the battery is ensured, and the service life of the battery is prolonged; the protective shell is further protected by the upper top plate, the lower top plate, the upper bottom plate and the lower bottom plate, the influence of vibration on the multiple groups of batteries can be effectively reduced by the damping springs and the rubber damping pads, the condition that the multiple groups of batteries are connected and the use reliability is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic perspective view of the upper, middle and lower thermally conductive holders of the present invention;
FIG. 3 is a schematic view showing the structure of the connection between the heat-conducting fin and the tie rod according to the present invention;
FIG. 4 is a schematic view of the present invention at a position A with a partially enlarged structure;
FIG. 5 is a schematic diagram of the internal circuit connection of the automatic switching circuit box according to the present invention;
in the drawings, the reference numbers: 1. a protective shell; 2. a first charging head; 3. a first protection circuit board; 4. a heat conductive sheet; 5. a heat dissipation fan; 6. a tie rod; 7. an upper top plate; 8. a lower top plate; 9. an upper base plate; 10. a lower base plate; 11. a first threaded rod; 12. a second threaded rod; 13. a first nut; 14. a second nut; 15. a second damping spring; 16. a rubber shock pad; 17. a backup battery; 18. a second protection circuit board; 19. a second charging head; 20. an upper thermally conductive support; 21. a middle heat conducting bracket; 22. a lower thermally conductive support; 23. automatically switching the circuit box; 24. a first cable; 25. a second cable; 26. a first circuit breaker; 27. a normally open switch; 28. a relay; 29. a second circuit breaker; 30. a normally closed switch; 31. high-efficiency filter cotton; 32. a top cover is arranged; 33. a bottom cover is arranged; 34. connecting blocks; 35. a socket head cap screw; 36. a wire passing pipe; 37. a first conductive line; 38. a second conductive line.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1 to 5, the lithium battery pack for the new energy automobile of the present invention includes a protective housing 1, a first charging head 2 and a first protective circuit board 3, a working cavity is provided in the protective housing, a plurality of groups of batteries are sequentially arranged in the working cavity, and the plurality of groups of batteries are connected in series, a first thermal switch and a first alarm indicator are provided on each group of batteries, and the plurality of groups of batteries are electrically connected to the first protective circuit board through the first thermal switch, the first charging head is installed on a left end side wall of the protective housing, and is electrically connected to input ends of the plurality of groups of batteries through a transformer, a first discharging port is further provided on a right side outer wall of the protective housing, and the first discharging port is electrically connected to output ends of the plurality of groups of batteries; comprises a plurality of groups of heat conducting fins 4, two groups of heat radiating fans 5 and a transverse pull rod 6, wherein one side end surfaces of the plurality of groups of heat conducting fins are respectively connected with the front side wall and the rear side wall of the plurality of groups of batteries, and a connecting rod is arranged among the multiple groups of heat-conducting fins, one end of the connecting rod is connected with the other end face of the multiple groups of heat-conducting fins, the other end of the connecting rod is connected with the transverse pull rod, the upper end and the lower end of the outer wall at the left side of the protective shell are respectively provided with an upper air inlet and a lower air inlet, the upper air inlet and the lower air inlet are communicated with the working cavity, the upper end and the lower end of the outer wall of the right side of the protective shell are respectively provided with an upper air outlet and a lower air outlet, the upper air outlet and the lower air outlet are communicated with the working cavity, two groups of radiating fans are respectively arranged at the upper end and the lower end of the outer wall at the right side of the protective shell, the input ends of the two groups of heat dissipation fans are communicated with the upper air outlet and the lower air outlet, and the output ends of the two groups of heat dissipation fans are communicated with the outside; the damping device also comprises an upper top plate 7, a lower top plate 8, an upper bottom plate 9, a lower bottom plate 10, two groups of first threaded rods 11, two groups of second threaded rods 12, two groups of first nuts 13 and two groups of second nuts 14, wherein the upper top plate and the lower top plate are both positioned above the protective shell, through holes are respectively formed in the left side and the right side of the upper top plate and the lower top plate, first damping springs are also arranged in the through holes, the top ends of the two groups of first threaded rods are inserted into and extend out of the bottom ends of the first damping springs in the through holes and are respectively connected with the two groups of first nuts in a screw manner, the upper bottom plate and the lower bottom plate are both positioned below the protective shell, through holes are respectively formed in the left side and the right side of the upper bottom plate and the lower bottom plate, second damping springs 15 are also arranged in the through holes, the top ends of the two groups of second threaded rods are inserted into and, rubber shock absorption pads 16 are arranged between the upper top plate and the lower top plate and between the upper bottom plate and the lower bottom plate; through the arrangement, the temperature generated when the battery is used is reduced through the radiating fins and the radiating fan, so that the heat radiation is uniform and efficient, the effective use of the battery is ensured, and the service life of the battery is prolonged; the protective shell is further protected by the upper top plate, the lower top plate, the upper bottom plate and the lower bottom plate, the influence of vibration on the multiple groups of batteries can be effectively reduced by the damping springs and the rubber damping pads, the condition that the multiple groups of batteries are connected and the use reliability is improved.
The lithium battery pack for the new energy automobile further comprises a plurality of groups of spare batteries 17, a second protection circuit board 18 and a second charging head 19, wherein the plurality of groups of spare batteries are sequentially arranged at the bottom end of the working cavity and are positioned below the plurality of groups of batteries, the plurality of groups of spare batteries are connected in series, the plurality of groups of spare batteries are respectively provided with a second thermal switch and a second alarm indicator lamp, the plurality of groups of spare batteries are respectively and electrically connected with the second protection circuit board through the second thermal switch, the second charging head is arranged below the left side end side wall of the protection shell and is electrically connected with the input ends of the plurality of groups of spare batteries through a transformer, a second discharging port is further arranged below the right side outer wall of the protection shell, and the second discharging port is electrically connected with the output ends of the plurality of groups of spare batteries; through the arrangement, after the electric quantity of the multiple groups of batteries is used up, the multiple groups of standby batteries are switched to continue to provide power, the power supply capacity of the batteries is ensured, and the endurance mileage of the new energy automobile is improved.
The lithium battery pack for the new energy automobile further comprises an upper heat conduction support 20, a middle heat conduction support 21 and a lower heat conduction support 22, wherein the upper heat conduction support, the middle heat conduction support and the lower heat conduction support are all located in the working cavity, the upper heat conduction support is installed above the multiple groups of batteries, the middle heat conduction support is installed between the multiple groups of batteries and the multiple groups of standby batteries, the lower heat conduction support is installed below the multiple groups of standby batteries, cavities are formed in the upper heat conduction support, the middle heat conduction support and the lower heat conduction support, multiple groups of heat dissipation holes are further formed in the outer walls of the upper heat conduction support, the middle heat conduction support and the lower heat conduction support, and the multiple groups of heat dissipation holes are communicated; through the arrangement, heat generated when the battery pack is powered is guided out through the upper heat conduction support, the middle heat conduction support and the heat dissipation holes in the lower heat conduction support, and the effect of fixing the battery pack is further achieved, so that the battery electric connection is more stable.
The lithium battery pack for the new energy automobile further comprises an automatic switching circuit box 23, a first cable 24 and a second cable 25, wherein a circuit cavity is arranged in the automatic switching circuit box, and the outer side wall of the left end of the automatic switching circuit box is provided with a first power connection port and a second power connection port which are both communicated with the circuit cavity, the first cable and the second cable are both positioned in the circuit cavity, the input ends of the first cable and the second cable are electrically connected with the first power connection port and the second power connection port, the outer wall of the right side of the automatic switching circuit box is also provided with a power transmission port, the power transmission port is communicated with the circuit cavity, the output ends of the first cable and the second cable are electrically connected with the power transmission port, a first circuit breaker 26, a normally open switch 27 and a relay 28 are arranged on the first cable, and a second circuit breaker 29 and a normally closed switch 30 are arranged on the second cable; through the arrangement, automatic switching of the multiple groups of standby batteries after the multiple groups of batteries are used is guaranteed.
The lithium battery pack for the new energy automobile further comprises two groups of high-efficiency filter cotton 31, wherein the two groups of high-efficiency filter cotton are respectively arranged at the upper air inlet and the lower air inlet; through the arrangement, when the heat dissipation fan works, heat in the protective shell is blown out from the air outlet, so that the protective shell is in a temporary low-pressure state, outside air enters the protective shell from the air inlet under the action of pressure difference, the air entering the protective shell is filtered by the high-efficiency filter cotton, impurities in the air are prevented from entering the protective shell to cause short circuit, the cleanness of elements in the protective shell is guaranteed, and the safety is improved.
The lithium battery pack for the new energy automobile has a detachable protective shell, and comprises an upper top cover 32, a lower bottom cover 33, four groups of connecting blocks 34 and four groups of hexagon socket head cap screws 35, wherein the top end and the bottom end of the protective shell are respectively provided with an inlet and an outlet, the inlet and the outlet are communicated with the working cavity, the top end of the upper top cover is connected with the bottom end of the lower top plate, the bottom end of the lower bottom cover is connected with the top end of the upper bottom plate, four groups of connecting blocks are respectively arranged on the top ends and the bottom ends of the left outer wall and the right outer wall of the protective shell, counter bores are respectively arranged in the four groups of connecting blocks, upper threaded holes are respectively arranged at the bottom ends of the left side and the right side of the upper top cover, lower threaded holes are respectively arranged at the top ends of the left side and the right side of the lower bottom cover, the upper threaded holes and the lower threaded holes are respectively concentrically corresponding to the counter bores arranged on the; through the arrangement, the upper top cover and the lower bottom cover of the protective shell can be detached, and the battery can be conveniently checked and maintained.
According to the lithium battery pack for the new energy automobile, the multiple groups of heat conducting fins and the connecting rods are all made of heat conducting silicone materials, and the upper heat conducting support, the middle heat conducting support and the lower heat conducting support are all made of aluminum materials; through the above arrangement, the heat-conducting silicone grease material has high heat conductivity, excellent heat conductivity, good electrical insulation, wider service temperature, good use stability, improved use reliability, light aluminum material, good heat-conducting performance and further improved heat-conducting and heat-transferring effects.
According to the lithium battery pack for the new energy automobile, the wire passing pipes 36 are arranged inside the upper heat conduction support, the middle heat conduction support and the lower heat conduction support; through the arrangement, the cable arrangement is convenient when the battery packs are connected in series.
The lithium battery pack for the new energy automobile further comprises a first conducting wire 37 and a second conducting wire 38, wherein the input end of the first conducting wire is electrically connected with the first discharging port, the output end of the first conducting wire is electrically connected with the first power connection port, the input end of the second conducting wire is electrically connected with the second discharging port, and the output end of the second conducting wire is electrically connected with the second power connection port; through the arrangement, the multiple groups of batteries, the multiple groups of standby batteries and the automatic switching circuit box are communicated, and the automatic switching function between the multiple groups of batteries and the multiple groups of standby batteries is realized.
The lithium battery pack for the new energy automobile is characterized in that when the lithium battery pack works, before the actions are completed, the lithium battery pack is moved to a position required by a user, a plurality of groups of batteries and a plurality of groups of standby batteries are charged through a first charging head and a second charging head, then a power supply input line of an automobile motor is inserted into a power transmission port on an automatic switching circuit box, the electric quantity stored in the plurality of groups of batteries is firstly used through the circuit arrangement in the automatic switching circuit box to supply power for the motor, and after the electric quantity of the plurality of groups of batteries is used, the lithium battery pack is automatically switched to the plurality of groups of standby batteries to be continuously used for the new energy automobile.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A lithium battery pack for a new energy automobile comprises a protective shell (1), a first charging head (2) and a first protective circuit board (3), wherein a working cavity is arranged in the protective shell (1), a plurality of groups of batteries are sequentially arranged in the working cavity and are connected in series, a first thermal switch and a first alarm indicator lamp are arranged on each group of batteries, the plurality of groups of batteries are electrically connected with the first protective circuit board (3) through the first thermal switch, the first charging head (2) is arranged on the left end side wall of the protective shell (1), the first charging head (2) is electrically connected with input ends of the plurality of groups of batteries through a transformer, a first discharging port is further arranged on the outer wall of the right side of the protective shell (1) and is electrically connected with output ends of the plurality of groups of batteries, and the lithium battery pack is characterized by further comprising a plurality of groups of heat-conducting fins (4), two groups of heat-radiating fans (5) and a transverse pull, one side end face of each group of heat conducting fins (4) is respectively connected with the front side wall and the rear side wall of each group of batteries, connecting rods are arranged among the groups of heat conducting fins (4), one end of each connecting rod is connected with the other side end face of each group of heat conducting fins (4), the other end of each connecting rod is connected with the corresponding tie rod (6), the upper end and the lower end of the outer wall of the left side of the protective shell (1) are respectively provided with an upper air inlet and a lower air inlet, the upper air inlet and the lower air inlet are respectively communicated with the working cavity, the upper end and the lower end of the outer wall of the right side of the protective shell (1) are respectively provided with an upper air outlet and a lower air outlet, the upper air outlet and the lower air outlet are respectively communicated with the working cavity, the two groups of heat radiating fans (5) are respectively arranged at the upper end and the lower end, the output ends of the two groups of radiating fans (5) are communicated with the outside; the damping device is characterized by further comprising an upper top plate (7), a lower top plate (8), an upper bottom plate (9), a lower bottom plate (10), two groups of first threaded rods (11), two groups of second threaded rods (12), two groups of first nuts (13) and two groups of second nuts (14), wherein the upper top plate (7) and the lower top plate (8) are both positioned above the protective shell (1), through holes are formed in the left side and the right side of the upper top plate (7) and the lower top plate (8), first damping springs are further arranged in the through holes, the top ends of the two groups of first threaded rods (11) are inserted from the bottom ends of the first damping springs in the through holes and extend out to the outside, the two groups of first nuts (13) are connected in a screwed mode respectively, the upper bottom plate (9) and the lower bottom plate (10) are both positioned below the protective shell (1), through holes are further formed in the left side and the right side of the upper bottom plate (9) and the lower bottom plate (10), and second damping, the top ends of the two groups of second threaded rods (12) are inserted from the bottom ends of second damping springs in the through holes and extend out of the outside, the two groups of second nuts (14) are connected in a threaded mode respectively, and rubber damping pads (16) are arranged between the upper top plate (7) and the lower top plate (8) and between the upper bottom plate (9) and the lower bottom plate (10).
2. The lithium battery pack for the new energy automobile according to claim 1, further comprising a plurality of sets of the backup battery (17), the second protection circuit board (18), and the second charging head (19), the multiple groups of spare batteries (17) are connected in series, are sequentially arranged at the bottom end of the working cavity and are positioned below the multiple groups of batteries, the multiple groups of spare batteries (17) are all provided with a second thermosensitive switch and a second alarm indicator lamp, and a plurality of groups of spare batteries (17) are electrically connected with a second protection circuit board (18) through a second thermal switch, a second charging head (19) is arranged below the left end side wall of the protection shell (1), and the second head (19) that charges is connected through the transformer and multiunit spare battery's input electricity, and protective housing (1) right side outer wall below still is provided with the second mouth that discharges to the second mouth that discharges is connected with multiunit spare battery's output electricity.
3. The lithium battery pack for the new energy automobile as claimed in claim 2, further comprising an upper heat conducting bracket (20), a middle heat conducting bracket (21) and a lower heat conducting bracket (22), the upper heat conduction bracket (20), the middle heat conduction bracket (21) and the lower heat conduction bracket (22) are all positioned in the working cavity, the upper heat conduction bracket (20) is arranged above the plurality of groups of batteries, the middle heat conduction bracket (21) is arranged between the plurality of groups of batteries and the plurality of groups of standby batteries (17), the lower heat conduction bracket (22) is arranged below the plurality of groups of standby batteries (17), cavities are arranged in the upper heat conduction bracket (20), the middle heat conduction bracket (21) and the lower heat conduction bracket (22), and the outer walls of the upper heat conduction support (20), the middle heat conduction support (21) and the lower heat conduction support (22) are also provided with a plurality of groups of heat dissipation holes, and the plurality of groups of heat dissipation holes are communicated with the cavity.
4. The lithium battery pack for the new energy automobile as claimed in claim 3, further comprising an automatic switching circuit box (23), a first cable (24) and a second cable (25), wherein a circuit cavity is arranged inside the automatic switching circuit box (23), a first power connection port and a second power connection port are arranged on the outer side wall of the left end of the automatic switching circuit box (23), the first power connection port and the second power connection port are both communicated with the circuit cavity, the first cable (24) and the second cable (25) are both located inside the circuit cavity, the input ends of the first cable (24) and the second cable (25) are both electrically connected with the first power connection port and the second power connection port, a power transmission port is further arranged on the outer wall of the right side of the automatic switching circuit box (23), the power transmission port is communicated with the circuit cavity, the output ends of the first cable (24) and the second cable (25) are both electrically connected with the power transmission port, and a first circuit breaker (26), a normally open switch (27) and a relay (28) are arranged on the first cable (24), and a second circuit breaker (29) and a normally closed switch (30) are arranged on the second cable (25).
5. The lithium battery pack for the new energy automobile as claimed in claim 4, further comprising two sets of high efficiency filter cotton (31), wherein the two sets of high efficiency filter cotton (31) are respectively installed at the upper air inlet and the lower air inlet.
6. The lithium battery pack for the new energy automobile as claimed in claim 5, wherein the protective case (1) is a detachable structure, and comprises an upper top cover (32), a lower bottom cover (33), four sets of connection blocks (34) and four sets of socket head cap screws (35), the top end and the bottom end of the protective case (1) are respectively provided with an inlet and an outlet, and the inlet and the outlet are both communicated with the working chamber, the top end of the upper top cover (32) is connected with the bottom end of the lower top plate (8), the bottom end of the lower bottom cover (33) is connected with the top end of the upper bottom plate (9), the four sets of connection blocks (34) are respectively mounted on the top end and the bottom end of the left outer wall and the right outer wall of the protective case (1), the four sets of connection blocks (34) are respectively provided with counter bores, the bottom ends of the left and the right sides of the upper top cover (32) are respectively provided with upper threaded holes, the top ends, the upper threaded hole and the lower threaded hole are respectively concentrically corresponding to counter bores arranged on four groups of connecting blocks (34), and the four groups of socket head cap screws (35) respectively penetrate through the counter bores to be inserted into the upper threaded hole and the lower threaded hole in a screwed mode.
7. The lithium battery pack for the new energy automobile as claimed in claim 6, wherein the plurality of sets of heat conducting fins (4) and the connecting rod are made of heat conducting silicone grease material, and the upper heat conducting support (20), the middle heat conducting support (21) and the lower heat conducting support (22) are made of aluminum material.
8. The lithium battery pack for the new energy automobile as claimed in claim 7, wherein the upper heat conducting support (20), the middle heat conducting support (21) and the lower heat conducting support (22) are all internally provided with wire passing pipes (36).
9. The lithium battery pack for the new energy automobile according to claim 8, further comprising a first conductive line (37) and a second conductive line (38), wherein an input end of the first conductive line (37) is electrically connected to the first power port, an output end of the first conductive line (37) is electrically connected to the first power port, an input end of the second conductive line (38) is electrically connected to the second power port, and an output end of the second conductive line (38) is electrically connected to the second power port.
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| CN201711387795.6A CN108321457B (en) | 2017-12-20 | 2017-12-20 | Lithium battery pack for new energy automobile |
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| CN201711387795.6A CN108321457B (en) | 2017-12-20 | 2017-12-20 | Lithium battery pack for new energy automobile |
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| CN109059529B (en) * | 2018-08-21 | 2020-06-23 | 江西艾芬达暖通科技股份有限公司 | Drying rack based on graphene material |
| CN110690381A (en) * | 2019-10-25 | 2020-01-14 | 江苏汇鑫新能源汽车科技有限公司 | New energy automobile can dismantle battery package |
| CN112448061A (en) * | 2020-02-09 | 2021-03-05 | 苏州市新方纬电子有限公司 | Two lithium cell package series connection devices |
| CN112563688B (en) * | 2020-12-12 | 2022-11-08 | 江西深超能源科技有限公司 | Ternary lithium battery with leakage collection protection function |
| CN112910028B (en) * | 2021-01-15 | 2021-11-05 | 广东嘉元科技股份有限公司 | Power supply for electrolytic copper foil |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5464168B2 (en) * | 2010-06-04 | 2014-04-09 | 株式会社デンソー | Power supply |
| CN202758945U (en) * | 2012-07-17 | 2013-02-27 | 北汽福田汽车股份有限公司 | Battery pack used for vehicle and battery pack assembly provided with battery pack and vehicle |
| CN204271155U (en) * | 2014-07-01 | 2015-04-15 | 温州海蓝工业设计有限公司 | The special shockproof box of a kind of battery of electric vehicle group |
| CN106848129B (en) * | 2015-12-04 | 2019-04-09 | 中国科学院沈阳自动化研究所 | A kind of power battery pack shell |
| CN205811008U (en) * | 2016-05-30 | 2016-12-14 | 江苏中兴派能电池有限公司 | Soft pack cell module radiator structure |
| CN106410318A (en) * | 2016-09-28 | 2017-02-15 | 东莞市联洲知识产权运营管理有限公司 | Lithium battery device for new energy automobile |
| CN206259402U (en) * | 2016-10-18 | 2017-06-16 | 南京金邦动力科技有限公司 | A kind of automobile lithium battery assembly housing |
| CN107221623A (en) * | 2017-07-20 | 2017-09-29 | 李丽丽 | A kind of new energy car battery module shock-damping structure |
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Effective date of registration: 20201211 Address after: 233399, 4 floor, building 3, industrial Acceleration Center, Wuhe County Economic Development Zone, Bengbu, Anhui. Patentee after: WUHE ZHIKAI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee after: Zeng Yuee Address before: Room 3207, Sanyi incubator, No. 73, Heping South Road, Wanbailin District, Taiyuan City, Shanxi Province Patentee before: SHANXI YUNDU INTELLECTUAL PROPERTY SERVICE Co.,Ltd. |
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Effective date of registration: 20210802 Address after: 276034 northeast corner of the intersection of Shunda road and Fengxiang street, industrial park, Hedong District, Linyi City, Shandong Province (No. 959) Patentee after: Shandong Shizhan Power Equipment Co.,Ltd. Address before: 233399, 4 floor, building 3, industrial Acceleration Center, Wuhe County Economic Development Zone, Bengbu, Anhui. Patentee before: WUHE ZHIKAI ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Patentee before: Zeng Yuee |
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Effective date of registration: 20220728 Address after: 518000 2404, block B, smart home, No. 76 Baohe Avenue, Baolong community, Baolong street, Longgang District, Shenzhen, Guangdong Province Patentee after: Shenzhen nengte Power Technology Co.,Ltd. Address before: 276034 northeast corner of the intersection of Shunda road and Fengxiang street, industrial park, Hedong District, Linyi City, Shandong Province (No. 959) Patentee before: Shandong Shizhan Power Equipment Co.,Ltd. |