CN111525067B - Battery pack suitable for new energy automobile - Google Patents
Battery pack suitable for new energy automobile Download PDFInfo
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- CN111525067B CN111525067B CN202010372766.8A CN202010372766A CN111525067B CN 111525067 B CN111525067 B CN 111525067B CN 202010372766 A CN202010372766 A CN 202010372766A CN 111525067 B CN111525067 B CN 111525067B
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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
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
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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
- 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
- H01M10/6566—Means within the gas flow to guide the flow around one or more cells, e.g. manifolds, baffles or other barriers
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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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- 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
Abstract
The invention discloses a battery pack suitable for a new energy automobile, which comprises a battery pack shell, a battery pack end cover and a battery pack, wherein the battery pack end cover is covered on the battery pack shell, the battery pack is arranged in the battery pack shell, and the battery pack comprises a liquid cooling radiating assembly, an air cooling radiating assembly and a plurality of battery cells which are arranged side by side and are all of thin plate structures. The battery package that is applicable to new energy automobile who adopts above technical scheme, novel structure, design benefit easily realizes, and liquid cooling subassembly and forced air cooling subassembly all have very big promotion in the heat-sinking capability effect, can avoid battery package overheat problem to appear, guarantee new energy automobile's security, promote new energy automobile's continuation of the journey mileage.
Description
Technical Field
The invention relates to the technical field of new energy automobiles, in particular to a battery pack suitable for a new energy automobile.
Background
The new energy automobile is an automobile which adopts unconventional automobile fuel as a power source, and mainly refers to an electric automobile. With the popularization of governments at home and abroad and the technical progress of new energy automobiles, the new energy automobiles are rapidly popularized, and more families choose to buy the new energy automobiles.
The electric automobile is a vehicle which takes a vehicle-mounted power supply as power and drives wheels to run by using a motor, and meets various requirements of road traffic and safety regulations. The battery, the motor and the electric control system are the most core and most costly three major components of the electric automobile. At present, the biggest problem of a new energy automobile is the endurance mileage of a battery and spontaneous combustion accidents which occur occasionally, wherein the problem of overheating of the battery can not only cause the spontaneous combustion accidents of the new energy automobile, but also influence the endurance mileage of the new energy automobile.
The battery of a part of electric automobiles adopts the installation form of a battery pack, so that the electric quantity of the battery can be increased, decreased and configured in a modularization and platformization mode according to the requirement. Because the battery packs are relatively closed, in order to prevent the battery packs from overheating, a heat dissipation system must be configured for each battery pack, and the existing heat dissipation system generally comprises two heat dissipation modes of liquid cooling and air cooling. However, the existing liquid cooling system and air cooling system have unsatisfactory heat dissipation capability due to the structural design, and therefore the problem of overhigh temperature of the battery pack, which occurs occasionally, cannot be solved all the time.
Disclosure of Invention
In order to solve the technical problems, the invention provides a battery pack suitable for a new energy automobile.
The technical scheme is as follows:
the utility model provides a battery package suitable for new energy automobile, includes that battery package shell, lid close battery package end cover on battery package shell and set up the group battery in battery package shell, the group battery includes liquid cooling radiator unit, forced air cooling radiator unit and a plurality of electric core that set up side by side, and be the sheet structure, its characterized in that: the liquid cooling radiating assembly comprises liquid cooling radiating fins which are respectively arranged on two sides of each electric core in the thickness direction, the adjacent electric cores share the same liquid cooling radiating fin, each liquid cooling radiating fin is sequentially communicated through a cooling liquid connecting pipe, a main liquid inlet pipe is connected to a liquid inlet joint of one liquid cooling radiating fin positioned on the outermost side, a main liquid outlet pipe is connected to a liquid outlet joint of the other liquid cooling fin positioned on the outermost side, and the main liquid inlet pipe and the main liquid outlet pipe both penetrate out of the battery pack end cover;
the air-cooled radiating component comprises a bar air outlet pipe and a bar exhaust pipe which are respectively and relatively arranged on two sides of each electric core in the width direction, a main air inlet pipe for supplying air to each bar air outlet pipe and a main exhaust pipe for outputting hot air discharged by each bar exhaust pipe outwards, wherein gaps are reserved between the outer edge of each electric core and the adjacent bar air outlet pipe, the bar air outlet pipe and the bar exhaust pipe are close to one side wall of the adjacent electric core and are provided with air inlet and outlet gaps extending along the length direction, and the main air inlet pipe and the main exhaust pipe both outwards penetrate out of the battery pack end cover.
By adopting the structure, the liquid cooling radiating fins with the sheet or plate structures are arranged between the adjacent electric cores, and the cooling liquid circulation loop sequentially flows through the liquid cooling radiating fins, so that heat can be continuously and efficiently taken away; the two sides of each electric core are respectively provided with a strip air outlet pipe for forced air outlet and a strip exhaust pipe for forced air exhaust, so that the flow speed and the air exchange efficiency of air around the electric core are greatly improved, the heat dissipation efficiency is greatly improved, meanwhile, through the design of an air inlet and outlet gap extending along the periphery of the electric core, each part of the electric core can be taken care of, uniform air cooling heat dissipation is realized, and the condition of local high temperature caused by uneven heat dissipation is avoided; the liquid cooling heat dissipation assemblies of the battery packs are uniformly connected into a cooling liquid cooling circulation system of the new energy automobile, and the air cooling heat dissipation assemblies of the battery packs are uniformly connected into a cooling air generation system of the new energy automobile, so that the novel battery pack cooling system is stable, reliable and easy to maintain; in conclusion, the liquid cooling assembly and the air cooling assembly have great improvement on the effect of heat dissipation capacity, the problem of overheating of the battery pack can be avoided, the safety of the new energy automobile is guaranteed, and the endurance mileage of the new energy automobile is improved.
Preferably, the method comprises the following steps: the battery pack comprises a battery pack shell and is characterized in that a battery pack mounting cavity for accommodating a battery pack is arranged in the battery pack shell, a plurality of element mounting grooves are distributed on the wall of the battery pack mounting cavity along the circumferential direction, and a plurality of temperature sensors are uniformly distributed in the element mounting grooves. By adopting the structure, the temperature of each part in the battery pack can be accurately monitored, and the problem of overheating of the battery pack is avoided.
Preferably, the method comprises the following steps: one end of the battery pack shell, which is close to the battery pack end cover, is provided with an end cover mounting boss matched with the battery pack end cover, a circle of sealing ring mounting groove is formed in the end cover mounting boss, and a sealing ring protruding outwards is arranged in the sealing ring mounting groove. By adopting the structure, the connection is firm, and the sealing performance is good.
Preferably, the method comprises the following steps: the inside of liquid cooling fin is separated and is formed with the coolant flow area that two at least sets up side by side, all form wavy coolant liquid runner through the water conservancy diversion muscle of parallel crisscross setting in the coolant flow area. By adopting the structure, the cooling liquid can flow through each area of the liquid cooling radiating fins as far as possible, so that the uniform heat dissipation of the battery cell is realized, and the condition that the battery cell is locally overheated is avoided.
Preferably, the method comprises the following steps: the interval width of adjacent diversion ribs in the coolant flow passing area close to one side of the liquid inlet connector is larger than the interval width of adjacent diversion ribs in the coolant flow passing area close to one side of the liquid outlet connector. Because in fact the coolant can not be full of whole coolant flow channel, and then the runner width design that the coolant flow that the coolant temperature is high is narrower for the coolant flow that the coolant temperature is low flows through the runner width in district (being closer to liquid outlet joint), can make unit area's coolant liquid volume more relatively, compensate coolant temperature rise and lead to the problem that the heat absorption efficiency reduces, thereby guaranteed the even heat dissipation to electric core, avoid electric core to take place the local overheated condition.
Preferably, the method comprises the following steps: one end of each flow guide rib is fixed on the side frame of the adjacent partition rib or the liquid cooling radiating fin, and the interval width between the end of the other end of each flow guide rib and the side frame of the adjacent partition rib or the liquid cooling radiating fin is larger than the interval width between the flow guide rib and the adjacent flow guide rib. By adopting the structure, the cooling liquid flows more smoothly, and the condition of cooling liquid siltation is avoided.
Preferably, the method comprises the following steps: and a silica gel heat conducting fin is arranged between the electric core and the corresponding liquid cooling radiating fin. For the design of liquid cooling fin direct and electric core contact heat absorption, structure more than adopting, the heat of electric core can be absorbed better as splendid flexible heat-conducting medium to transmit the electric core for the liquid cooling fin, improved the heat absorption efficiency to the electric core by a wide margin.
Preferably, the method comprises the following steps: each strip-shaped air outlet pipe and each strip-shaped air exhaust pipe are respectively communicated with the corresponding main air inlet pipe or main air exhaust pipe through a strip-shaped transfer joint. By adopting the structure, the air inlet pipe is conveniently in sealing connection with the main air inlet pipe or the main exhaust pipe, the installation tolerance is compensated, and the air inlet and the air exhaust are smoother.
Preferably, the method comprises the following steps: at least two annular air nozzles which are arranged along the length direction of the strip-shaped air outlet pipe or the strip-shaped exhaust pipe are convexly formed on one side surface of the transfer joint, which is close to the strip-shaped air outlet pipe or the strip-shaped exhaust pipe, and mounting clips which are opposite to each other are arranged on two sides of each annular air nozzle;
the bar goes out the tuber pipe and the bar exhaust pipe is close to and sets up the air cock patchhole that suits with corresponding annular air cock on the side of adjacent transfer joint, and each annular air cock can insert respectively in the air cock patchhole that corresponds to hug closely the pore wall of air cock patchhole, the bar goes out the sunken joint groove that is formed with and corresponds installation checkpost and suits on the both sides wall of tuber pipe and bar exhaust pipe, and each installation checkpost can block respectively in the joint groove that corresponds.
Structure more than adopting, multipoint formula's air supply can effectively improve air supply efficiency, reduces the windage, utilizes the joint cooperation simultaneously, and it is firm not only to connect, and the assembly is simple moreover, and the design that annular air cock inserted the air cock patchhole in addition can enough play the effect of installation location, has still guaranteed sealed effect.
Preferably, the method comprises the following steps: the central point that the transfer joint kept away from bar air-out pipe or bar exhaust pipe side puts the protrusion and is formed with the bar coupling, main air inlet pipe and main exhaust pipe have the person in charge that suits with the corresponding connector of being responsible for on. By adopting the structure, the structure is simple and reliable, and is easy to assemble and connect.
Compared with the prior art, the invention has the beneficial effects that:
the battery package that is applicable to new energy automobile who adopts above technical scheme, novel structure, design benefit easily realizes, and liquid cooling subassembly and forced air cooling subassembly all have very big promotion in the heat-sinking capability effect, can avoid battery package overheat problem to appear, guarantee new energy automobile's security, promote new energy automobile's continuation of the journey mileage.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of FIG. 1 with the end cap removed;
FIG. 3 is a schematic structural view of a battery pack case;
fig. 4 is a schematic structural view of a battery pack;
fig. 5 is a schematic diagram of the matching relationship between a single battery cell and adjacent components;
FIG. 6 is a cross-sectional view of FIG. 5;
FIG. 7 is a schematic diagram of the internal structure of a liquid-cooled heat sink;
FIG. 8 is a schematic view of a structure of one of the strip-shaped air outlet duct and the strip-shaped exhaust duct;
FIG. 9 is a schematic view of another view angle of the strip-shaped air outlet duct or the strip-shaped exhaust duct;
fig. 10 is a schematic view of the structure of the transfer joint.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1 and 4, a battery pack suitable for a new energy automobile includes a battery pack case 12, a battery pack end cover 13 covering the battery pack case 12, and a battery pack disposed in the battery pack case 12, where the battery pack includes a liquid cooling heat dissipation assembly, an air cooling heat dissipation assembly, and a plurality of battery cells 1. Each electric core 1 is a thin plate structure and is arranged side by side, and in this embodiment, the electric core 1 is a common lithium ion battery.
Referring to fig. 1-3, a battery pack housing 12 has a battery pack mounting cavity 12a for accommodating a battery pack, a plurality of element mounting grooves 12b are circumferentially distributed on a cavity wall of the battery pack mounting cavity 12a, and a plurality of temperature sensors 14 are uniformly distributed in the element mounting grooves 12b, so that the temperature of each part inside the battery pack can be accurately monitored, and the problem of overheating of the battery pack is avoided. In this embodiment, the temperature sensor 14 is preferably an infrared temperature sensor, which is simple, reliable and high temperature resistant.
One end of the battery pack shell 12 close to the battery pack end cover 13 is provided with an end cover mounting boss 12c matched with the battery pack end cover 13, the end cover mounting boss 12c is provided with a circle of sealing ring mounting groove 12d, an outward convex sealing ring is arranged in the sealing ring mounting groove 12d, and when the battery pack end cover 13 covers the battery pack shell 12, the sealing ring is in interference fit with the battery pack end cover 13.
The outer wall of the battery pack shell 12 is provided with a plurality of weight reducing grooves 12e, and the weight reducing grooves 12e are internally provided with a plurality of reinforcing ribs 12 f.
Referring to fig. 4 to 6, the liquid-cooled heat dissipation assembly includes liquid-cooled heat sinks 2 respectively disposed on two sides of each electrical core 1 in the thickness direction, and the adjacent electrical cores 1 share the same liquid-cooled heat sink 2, that is, the liquid-cooled heat sinks 2 and the electrical cores 1 are alternately disposed. In order to enable the liquid cooling fins 2 to absorb the heat of the battery cell 1 better, a silicone heat conducting fin 10 is provided between the battery cell 1 and the corresponding liquid cooling fin 2. The silica gel heat conducting strip 10 is used as an excellent flexible heat conducting medium, so that the heat of the battery cell 1 can be better transferred to the liquid cooling radiating fin 2, and the heat absorption efficiency of the battery cell 1 is greatly improved.
Referring to fig. 4 to 7, the liquid-cooled heat sink 2 is provided therein with a cooling liquid channel 2b for flowing cooling liquid, the liquid-cooled heat sink 2 is provided thereon with a liquid inlet connector 2c for flowing cooling liquid in and a liquid outlet connector 2d for flowing cooling liquid out, the cooling liquid flows into the cooling liquid channel 2b inside the liquid-cooled heat sink 2 from the liquid inlet connector 2c, and finally flows out from the liquid outlet connector 2d, so as to take away heat of the liquid-cooled heat sink 2 and efficiently dissipate heat of the liquid-cooled heat sink 2.
In this embodiment, the liquid-cooled fins 2 are sequentially communicated through the liquid-cooled connecting pipe 3; a main liquid inlet pipe 8 is connected to a liquid inlet joint 2c of one liquid cooling fin 2 positioned on the outermost side, and a liquid outlet joint 2d is communicated with a liquid inlet joint 2c of the adjacent liquid cooling fin 2 through a corresponding cooling liquid connecting pipe 3; the liquid outlet joint 2d of the other liquid cooling radiating fin 2 positioned at the outermost side is connected with a main liquid outlet pipe 9, and the liquid inlet joint 2c is communicated with the liquid outlet joint 2d of the adjacent liquid cooling radiating fin 2 through the corresponding cooling liquid connecting pipe 3. Referring to fig. 1, a liquid inlet pipe through hole 13c corresponding to the main liquid inlet pipe 8 is formed in the battery pack end cover 13, the main liquid inlet pipe 8 extends out of the liquid inlet pipe through hole 13c, a liquid outlet pipe through hole 13d corresponding to the main liquid outlet pipe 9 is formed in the battery pack end cover 13, and the main liquid outlet pipe 9 extends out of the liquid outlet pipe through hole 13 d.
The cooled cooling liquid flows into the first liquid cooling fin 2 from the main liquid inlet pipe 8, then sequentially flows through each remaining liquid cooling fin 2, and is sent back to the cooling liquid cooling component of the liquid cooling system for cooling through the main liquid outlet pipe 9 after flowing out of the last liquid cooling fin 2, and the finally cooled cooling liquid is recycled to the main liquid inlet pipe 8. Wherein, the outer ends of the main liquid inlet pipe 8 and the main liquid outlet pipe 9 are provided with butt joints e, so that the cooling liquid cooling circulation system can be rapidly connected, and the operation is convenient and rapid.
Further, the outer ends of the liquid inlet joint 2c and the liquid outlet joint 2d are provided with connecting leakage-proof heads formed by protrusions, the connecting leakage-proof heads are of frustum structures gradually reduced towards the liquid inlet joint 2c or the liquid outlet joint 2d, and the connecting leakage-proof heads are made of elastic rubber materials, so that the sealing performance is good, and the sealing structure is durable.
Referring to fig. 7, at least two cooling liquid flow passing areas arranged side by side are formed in the liquid cooling heat sink 2 in a partitioned manner, and the cooling liquid flow passing areas are all formed into wavy cooling liquid flow channels 2b through the flow guiding ribs 2a arranged in parallel and staggered manner. The spacing width of the adjacent flow guide ribs 2a in the cooling liquid flowing area close to the liquid inlet joint 2c is larger than that of the adjacent flow guide ribs 2a in the cooling liquid flowing area close to the liquid outlet joint 2 d; because in fact the coolant can not be full of whole coolant flow channel 2b, and then the runner width that the coolant liquid temperature is high flows through the district (be closer to liquid outlet joint 2d) designs for the coolant liquid that the coolant liquid temperature is low flows through the runner width of district (be closer to liquid inlet joint 2c) narrower, can make the coolant liquid amount of unit area more relatively, compensate the coolant liquid temperature and rise and lead to the problem that the heat absorption efficiency reduces, thereby guaranteed the even heat dissipation to electric core 1, avoid electric core 1 to take place the condition of local overheat. In addition, one end of the diversion rib 2a is fixed on the adjacent separation rib 2e or the side frame 2f of the liquid cooling fin 2, and the interval width between the other end of the diversion rib and the adjacent separation rib 2e or the side frame 2f of the liquid cooling fin 2 is larger than the interval width between the diversion rib 2a and the adjacent diversion rib 2a, so that the flow of the cooling liquid is smoother, and the condition of cooling liquid deposition is avoided.
Please refer to fig. 1, fig. 4 and fig. 5, the air-cooled heat dissipation assembly includes a bar-shaped air outlet pipe 4 and a bar-shaped air outlet pipe 5 respectively and oppositely disposed at two sides of the width direction of each electrical core 1, a main air inlet pipe 6 for supplying air to each bar-shaped air outlet pipe 4, and a main air outlet pipe 7 for outputting hot air discharged from each bar-shaped air outlet pipe 5, wherein a gap is left between the outer edge of each electrical core 1 and the adjacent bar-shaped air outlet pipe 4 and bar-shaped air outlet pipe 5, and one side wall of each bar-shaped air outlet pipe 4 and bar-shaped air outlet pipe 5, which is close to the adjacent electrical core 1, is provided with an air inlet and outlet gap d extending along the length direction. An air inlet pipe passing hole 13a matched with the main air inlet pipe 6 is formed in the battery pack end cover 13, the main air inlet pipe 6 outwards passes through the air inlet pipe passing hole 13a, an air exhaust pipe passing hole 13b matched with the main air exhaust pipe 7 is formed in the battery pack end cover 13, and the main air exhaust pipe 7 outwards passes through the air exhaust pipe passing hole 13 b. The main air inlet duct 6 and the main air discharge duct 7 can be conveniently connected to the cooling air generating system.
Referring to fig. 4-6 and fig. 8 and 9, in order to uniformly blow air to each part of the electrical core 1 and uniformly suck heat from each part of the electrical core 1, each of the strip-shaped air outlet duct 4 and the strip-shaped exhaust duct 5 includes a strip-shaped main body portion and arc-shaped bent portions at two ends of the main body portion, the overall shape of the strip-shaped air outlet duct 4 and the strip-shaped exhaust duct 5 is adapted to the electrical core 1, and correspondingly, the air inlet and outlet gap d extends from one end of the strip-shaped air outlet duct 4 to the other end of the strip-shaped exhaust duct 5.
Referring to fig. 4-6, each strip-shaped air outlet duct 4 and each strip-shaped air outlet duct 5 are respectively communicated with the corresponding main air inlet duct 6 or main air outlet duct 7 through a strip-shaped transfer joint 11.
Referring to fig. 10, at least two annular air nozzles 11a are formed on one side of the transfer joint 11 near the strip-shaped air outlet pipe 4 or the strip-shaped exhaust pipe 5 in a protruding manner and arranged along the length direction of the transfer joint, and mounting clips 11b facing each other are arranged on two sides of the annular air nozzles 11 a. The bar goes out tuber pipe 4 and bar exhaust pipe 5 and is close to and sets up the air cock patchhole a that suits with corresponding annular air cock 11a on the side of adjacent transfer joint 11, each annular air cock 11a can insert respectively in the air cock patchhole a that corresponds, and hug closely air cock patchhole an's pore wall, the bar goes out the sunken joint groove b that is formed with and corresponds installation checkpost 11b and suits that is formed with on the both sides wall of tuber pipe 4 and bar exhaust pipe 5, each installation checkpost 11b can block respectively in the joint groove b that corresponds. The air supply and exhaust design of the annular air nozzles 11a is utilized, so that the air supply efficiency can be effectively improved, the wind resistance is reduced, and the air is uniformly discharged from each part of the air inlet and outlet gap d. Meanwhile, the design that the annular air nozzle is inserted into the air nozzle insertion hole a 11a can play a role in installation and positioning, and the sealing effect is also guaranteed. And utilize the joint cooperation with joint groove b installation checkpost 11b, it is firm not only to connect, and the assembly is simple moreover to, installation checkpost 11b has the multiunit, connects firmly.
Referring to fig. 4-6 and 10, the middle joint 11 is protruded from the center of one side of the strip-shaped air outlet duct 4 or the strip-shaped air outlet duct 5 to form a strip-shaped pipe joint 11c, and the main air inlet duct 6 and the main air outlet duct 7 are provided with main pipe joints c corresponding to the corresponding main pipe joints 11 c. The outer end of the strip pipe joint 11c protrudes outwards to form an elastic sealing flange 11c1, the outer peripheral surface of the sealing flange 11c1 is a conical surface structure which is gradually smaller towards the direction away from the strip pipe joint 11c, and the sealing flange 11c1 is made of rubber materials, so that the sealing performance is good.
The external cold air is simultaneously conveyed to each strip-shaped air outlet pipe 4 from the main air inlet pipe 6, the cold air is absorbed by the heat of the electric core 1 through the corresponding air inlet and outlet gaps d on the strip-shaped air outlet pipes 4, and the hot air is sucked by the air inlet and outlet gaps d on each strip-shaped exhaust pipe 5, collected into the main exhaust pipe 7 and input outwards.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and that those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (7)
1. The utility model provides a battery package suitable for new energy automobile, includes that battery package shell, lid close battery package end cover on battery package shell and set up the group battery in battery package shell, the group battery includes liquid cooling radiator unit, forced air cooling radiator unit and a plurality of electric core that set up side by side, and be the sheet structure, its characterized in that: the liquid cooling radiating assembly comprises liquid cooling radiating fins which are respectively arranged on two sides of each electric core in the thickness direction, the adjacent electric cores share the same liquid cooling radiating fin, each liquid cooling radiating fin is sequentially communicated through a cooling liquid connecting pipe, a main liquid inlet pipe is connected to a liquid inlet joint of one liquid cooling radiating fin positioned on the outermost side, a main liquid outlet pipe is connected to a liquid outlet joint of the other liquid cooling fin positioned on the outermost side, and the main liquid inlet pipe and the main liquid outlet pipe both penetrate out of the battery pack end cover;
the air-cooled radiating assembly comprises strip-shaped air outlet pipes and strip-shaped air exhaust pipes which are respectively oppositely arranged at two sides of each battery cell in the width direction, a main air inlet pipe for supplying air to each strip-shaped air outlet pipe and a main air exhaust pipe for outputting hot air exhausted by each strip-shaped air exhaust pipe outwards, gaps are reserved between the outer edge of each battery cell and the adjacent strip-shaped air outlet pipes and strip-shaped air exhaust pipes, air inlet and outlet gaps extending along the length direction are formed in the side walls, close to the adjacent battery cells, of each strip-shaped air outlet pipe and each strip-shaped air exhaust pipe, and the main air inlet pipe and the main air exhaust pipe outwards penetrate through the end cover of the battery pack;
each strip-shaped air outlet pipe and each strip-shaped air exhaust pipe are respectively communicated with the corresponding main air inlet pipe or main air exhaust pipe through a strip-shaped transfer joint;
at least two annular air nozzles which are arranged along the length direction of the strip-shaped air outlet pipe or the strip-shaped exhaust pipe are convexly formed on one side surface of the transfer joint, which is close to the strip-shaped air outlet pipe or the strip-shaped exhaust pipe, and mounting clips which are opposite to each other are arranged on two sides of each annular air nozzle;
the strip-shaped air outlet pipe and the strip-shaped exhaust pipe are provided with air tap inserting holes matched with corresponding annular air taps on one side face close to the adjacent transfer joint, each annular air tap can be inserted into the corresponding air tap inserting hole respectively and is tightly attached to the hole wall of the air tap inserting hole, clamping grooves matched with corresponding mounting clips are formed in the two side walls of the strip-shaped air outlet pipe and the strip-shaped exhaust pipe in a concave mode, and each mounting clip can be clamped into the corresponding clamping groove respectively;
the central position protrusion that the transfer joint kept away from bar tuber pipe or bar exhaust pipe side is formed with the bar coupling, main air inlet pipe and main exhaust pipe have the person in charge that suits with corresponding bar coupling on.
2. The battery pack suitable for the new energy automobile according to claim 1, wherein: the battery pack shell is internally provided with a battery pack mounting cavity for accommodating a battery pack, a plurality of element mounting grooves are circumferentially distributed on the cavity wall of the battery pack mounting cavity, and a plurality of uniformly distributed temperature sensors are arranged in the element mounting grooves.
3. The battery pack suitable for the new energy automobile according to claim 1, wherein: one end of the battery pack shell, which is close to the battery pack end cover, is provided with an end cover mounting boss matched with the battery pack end cover, a circle of sealing ring mounting groove is formed in the end cover mounting boss, and a sealing ring protruding outwards is arranged in the sealing ring mounting groove.
4. The battery pack suitable for the new energy automobile according to claim 1, wherein: the inside of the liquid cooling radiating fin is divided into at least two cooling liquid flow passing areas which are arranged side by side, and the cooling liquid flow passing areas are all provided with waved cooling liquid flow passages through the flow guide ribs which are arranged in a parallel and staggered mode.
5. The battery pack suitable for the new energy automobile according to claim 4, wherein: the interval width of adjacent diversion ribs in the coolant flow passing area close to one side of the liquid inlet connector is larger than the interval width of adjacent diversion ribs in the coolant flow passing area close to one side of the liquid outlet connector.
6. The battery pack suitable for the new energy automobile according to claim 4, wherein: one end of each flow guide rib is fixed on the side frame of the adjacent partition rib or the liquid cooling radiating fin, and the interval width between the end of the other end of each flow guide rib and the side frame of the adjacent partition rib or the liquid cooling radiating fin is larger than the interval width between the flow guide rib and the adjacent flow guide rib.
7. The battery pack suitable for the new energy automobile according to claim 1, wherein: and a silica gel heat conducting fin is arranged between the electric core and the corresponding liquid cooling radiating fin.
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