CN112909411B - Lithium cell group for new energy automobile - Google Patents
Lithium cell group for new energy automobile Download PDFInfo
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- CN112909411B CN112909411B CN202110074546.1A CN202110074546A CN112909411B CN 112909411 B CN112909411 B CN 112909411B CN 202110074546 A CN202110074546 A CN 202110074546A CN 112909411 B CN112909411 B CN 112909411B
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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
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
- H01M10/6557—Solid parts with flow channel passages or pipes for heat exchange arranged between the cells
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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
-
- 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/657—Means for temperature control structurally associated with the cells by electric or electromagnetic means
- H01M10/6572—Peltier elements or thermoelectric devices
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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 lithium battery pack for a new energy automobile, which comprises a box body, wherein the lithium battery pack consisting of a plurality of lithium batteries is installed in the box body, two opposite side walls of the box body are respectively provided with a liquid storage tank and a pump liquid cavity, a plurality of one-way liquid inlet pipes are communicated between the liquid storage tank and the pump liquid cavity, each one-way liquid inlet pipe is distributed between two adjacent lithium batteries in a snake shape, a one-way liquid return pipe is also communicated between the liquid storage tank and the pump liquid cavity, an air bag is arranged in the pump liquid cavity, and an air inlet end and an air outlet end of the air bag are respectively communicated with an air inlet pipe and an air outlet pipe. The invention supplies air into the air bag intermittently, thus causing the air bag to expand and contract continuously, thus leading cooling liquid to flow in a one-way circulation way between the liquid storage tank and the pump liquid cavity under the one-way flow limiting action of the one-way liquid inlet pipe and the one-way liquid return pipe, needing no erection of electric equipment for driving, saving energy, generating no extra heat and having good heat dissipation effect.
Description
Technical Field
The invention relates to the technical field of related equipment of new energy automobiles, in particular to a lithium battery pack for a new energy automobile.
Background
At present, an electric automobile is one of the most common new energy automobile types, and the power of the electric automobile is derived from the electric energy of a lithium battery pack. Along with the progress of science and technology, the endurance mileage of electric automobile increases progressively, but battery heat dissipation technology synchronous with it does not promote, and the endurance mileage is more, and then the lithium cell group operating time is also longer, and the heat that produces is also more, and the traditional heat dissipation mode effect that adopts the actuating pump to drive the coolant liquid and flow is general, and mainly actuating equipment such as liquid pumps also can produce a large amount of heats at the during operation, and still can consume the battery electric energy, reduces electric automobile's endurance mileage. Accordingly, the application file provides a lithium battery pack for a new energy automobile.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a lithium battery pack for a new energy automobile.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a lithium cell group for new energy automobile, the power distribution box comprises a box body, install the lithium cell group that a plurality of lithium cells are constituteed in the box, reservoir and pump liquid cavity have been seted up respectively to two relative lateral walls of box, the intercommunication has a plurality of one-way feed liquor pipes between reservoir and the pump liquid cavity, and each one-way feed liquor pipe is snakelike the distribution between two adjacent lithium cells, it has one-way liquid pipe that returns to go back to the intercommunication between reservoir and the pump liquid cavity, pump liquid intracavity is equipped with the gasbag, the inlet end of gasbag and the end of giving vent to anger communicate respectively has intake pipe and outlet duct, install the air feeder to the gasbag air feed in the intake pipe.
Preferably, the air supply device comprises a gas-collecting hood fixedly connected to the air inlet end of the air inlet pipe, the gas-collecting hood is communicated with the air inlet pipe, a wind wheel is rotatably connected to the inner wall of the gas-collecting hood, a baffle is fixedly connected to the side wall of a rotating shaft of the wind wheel, and an air outlet is formed in the inner wall of the gas-collecting hood.
Preferably, the liquid storage tank and the pump liquid cavity are both filled with cooling liquid, the one-way liquid inlet pipe only allows the cooling liquid to flow from the pump liquid cavity to the liquid storage tank, and the one-way liquid return pipe only allows the cooling liquid to flow from the liquid storage tank to the pump liquid cavity.
Preferably, the communicating spout with the intake pipe is seted up to the lateral wall of box, sliding connection has the permanent magnet in the spout, it is equipped with helical coil to inlay on the spout inner wall, just the permanent magnet passes through spring elastic connection on the inner wall of intake pipe, install a plurality of semiconductor refrigeration pieces with the helical coil coupling in the pump liquid intracavity.
The invention has the following beneficial effects:
1. the air supply device is arranged, so that air can be intermittently supplied into the air bag, the air bag can be caused to expand and contract continuously, and the cooling liquid can flow in a one-way circulating manner between the liquid storage tank and the pump liquid cavity under the action of one-way flow limiting of the one-way liquid inlet pipe and the one-way liquid return pipe, so that power equipment does not need to be erected for driving, energy is saved, extra heat cannot be generated, and the heat dissipation effect is good;
2. by arranging the air inlet pipe, the air bag, the air outlet pipe and other parts, air can continuously flow into the air inlet pipe, the air bag and the air outlet pipe when an automobile runs, and the high-speed flowing air can take away heat absorbed by the cooling liquid, so that the heat dissipation efficiency of the device is improved;
3. through setting up parts such as permanent magnet, helical coil and semiconductor refrigeration piece, can make the permanent magnet constantly reciprocate and produce the electric energy when air feeder operates to make the semiconductor refrigeration piece circular telegram, can absorb the heat of coolant liquid fast, further improve this device's radiating efficiency.
Drawings
Fig. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1;
FIG. 3 is a schematic cross-sectional view taken along line B-B in FIG. 1;
FIG. 4 is a schematic structural diagram of a second embodiment of the present invention;
fig. 5 is an enlarged view of the structure at C in fig. 4.
In the figure: the device comprises a box body 1, a lithium battery 2, a liquid storage tank 3, a liquid cavity with a pump 4, an air bag 5, an air inlet pipe 6, an air outlet pipe 7, a one-way liquid inlet pipe 8, a one-way liquid return pipe 9, a gas collecting hood 10, a wind wheel 11, an air outlet hole 111, a baffle plate 12, a sliding chute 13, a permanent magnet 14, a spiral coil 15, a spring 16 and a semiconductor refrigerating sheet 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The first embodiment is as follows:
referring to fig. 1-3, a lithium battery group for new energy automobile, which comprises a box body 1, install the lithium battery group that a plurality of lithium cell 2 constitute in the box body 1, reservoir 3 and pump liquid chamber 4 have been seted up respectively to two relative lateral walls of box body 1, the intercommunication has a plurality of one-way feed liquor pipe 8 between reservoir 3 and the pump liquid chamber 4, and each one-way feed liquor pipe 8 is snakelike distribution between two adjacent lithium cell 2, still the intercommunication has one-way liquid return pipe 9 between reservoir 3 and the pump liquid chamber 4, reservoir 3 and pump liquid chamber 4 are all filled with the coolant liquid, one-way feed liquor pipe 8 only allows the coolant liquid to flow to reservoir 3 from pump liquid chamber 4, one-way liquid return pipe 9 only allows the coolant liquid to flow to pump liquid chamber 4 from reservoir 3, be equipped with gasbag 5 in the pump liquid chamber 4, the inlet end and the end of gasbag 5 communicate respectively has intake pipe 6 and outlet duct 7, install the air feeder who supplies air to gasbag 5 on the intake pipe 6.
It should be noted that the air bag 5 is made of a metal material with good elasticity, such as copper-based elastic alloy, so that the air bag has good elasticity and good heat conductivity, and when air flows in the air inlet pipe 6, the air bag 5 and the air outlet pipe 7, heat of the coolant can be carried away. Furthermore, the pipe diameter of the air inlet pipe 6 is larger than that of the air outlet pipe 7, so that when air flows into the air bag 5 along the air inlet pipe 6, the air inflow is larger than the air outflow, and the air bag 5 can be bulged along with the air inflow.
The air supply device comprises a gas collecting hood 10 fixedly connected to the air inlet end of the air inlet pipe 6, the gas collecting hood 10 is communicated with the air inlet pipe 6, a wind wheel 11 is rotatably connected to the inner wall of the gas collecting hood 10, a baffle 12 is fixedly connected to the side wall of a rotating shaft of the wind wheel 11, and an air outlet 111 is formed in the inner wall of the gas collecting hood 10.
In the use process of the device, the gas collecting hood 10 is placed at the windward part outside the automobile, so that when the automobile runs, air rushes into the gas collecting hood 10 at a high speed to push the wind wheel 11 to rotate, then flows into the air bag 5 through the air inlet pipe 6, and is discharged through the air outlet pipe 7. And wind wheel 11 is at the rotation in-process, will drive baffle 12 synchronous revolution, baffle 12 can intermittent type nature block the air inlet of intake pipe 6, then the air also is the gushing into intake pipe 6 of pulse form, whenever when the air gushes into intake pipe 6 and gasbag 5 in, because the pipe diameter of outlet duct 7 is less than the pipe diameter of intake pipe 6, therefore the air of gushing into can't discharge completely at once, gasbag 5 will be bloated, and when baffle 12 blocks the air inlet of intake pipe 6, the volume greatly reduced that gushes into of air this moment, gasbag 5 can extrude the air in gasbag 5 under self elasticity effect, gasbag 5 shrink. Therefore, in the process of discharging the air pulse, the air bag 5 continuously expands and contracts along with the air bag, when the air bag 5 expands, the cooling liquid in the pump liquid cavity 4 can be squeezed into the liquid storage tank 3 along the one-way liquid inlet pipe 8, when the air bag 5 contracts, the cooling liquid in the liquid storage tank 3 can be pumped back into the pump liquid cavity 4 along the one-way liquid return pipe 9, so that the cooling liquid can flow in the one-way liquid inlet pipe 8 in a one-way circulating mode, the heat generated by the lithium battery 2 can be rapidly dissipated, power equipment driving such as a liquid pump does not need to be erected, energy is saved, extra heat cannot be generated, and compared with a traditional heat dissipation mode, the heat dissipation performance of the device is excellent.
In addition, it is worth mentioning that when the air continuously flows along the air inlet pipe 6, the air bag 5 and the air outlet pipe 7 at a high speed, the cold air outside the vehicle can also radiate the heat absorbed by the cooling liquid, thereby reducing the temperature of the cooling liquid and improving the heat radiation efficiency of the cooling liquid.
The second embodiment:
referring to fig. 4-5, different from the first embodiment, a chute 13 communicated with the air inlet pipe 6 is formed in a side wall of the box body 1, a permanent magnet 14 is slidably connected in the chute 13, and a spiral coil 15 is embedded in an inner wall of the chute 13, it should be noted that, as shown in fig. 5, the spiral coil 15 is only distributed at a part below the chute 13, so that the permanent magnet 14 can completely enter and exit the spiral coil 15 when moving up and down, and the magnetic flux in the spiral coil 15 is changed, thereby generating an induced current. And the permanent magnet 14 is elastically connected to the inner wall of the air inlet pipe 6 through a spring 16, and a plurality of semiconductor refrigeration sheets 17 coupled with the spiral coil 15 are installed in the pump liquid cavity 4.
In this embodiment, when air flows in the air inlet pipe 6, the air flow rate in the air inlet pipe 6 is fast, the generated pressure is small, the air flow rate in the chute 13 communicated with the air inlet pipe 6 is slow, the pressure is large, therefore, the air in the chute 13 is squeezed into the air inlet pipe 6, the air flow direction can refer to the arrow direction of fig. 5, at this time, the air below the permanent magnet 14 is reduced, the permanent magnet 14 moves downwards, when the air inlet pipe 6 is in the air inlet interval, no air flows in the air inlet pipe 6, the air pressure in the air inlet pipe 6 is recovered, the air is communicated with the pressure in the chute 13, and the spring 16 can push the permanent magnet 14 to move upwards and return, therefore, in the pulse air inlet process of the air inlet pipe 6, the permanent magnet 14 moves up and down in the chute 13, the magnetic flux in the spiral coil 15 is continuously changed, and further, the induced current is generated and the semi-conductor refrigeration pieces 17 are electrified, so that the heat of the coolant in the pump liquid chamber 4 is quickly absorbed, the temperature of the coolant is reduced, and the heat dissipation efficiency of the device is further improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (2)
1. The utility model provides a lithium cell group for new energy automobile, includes box (1), install the lithium cell group that a plurality of lithium cell (2) are constituteed in box (1), its characterized in that, reservoir (3) and pump liquid chamber (4) have been seted up respectively to two relative lateral walls of box (1), the intercommunication has a plurality of one-way feed liquor pipes (8) between reservoir (3) and pump liquid chamber (4), and each one-way feed liquor pipe (8) are snakelike distribution between two adjacent lithium cell (2), still the intercommunication has one-way liquid return pipe (9) between reservoir (3) and pump liquid chamber (4), be equipped with gasbag (5) in the pump liquid chamber (4), the inlet end of gasbag (5) communicates respectively with the end of giving vent to anger has intake pipe (6) and outlet duct (7), install the air feeder to gasbag (5) air feed;
the air supply device comprises a gas collecting hood (10) fixedly connected to the air inlet end of the air inlet pipe (6), the gas collecting hood (10) is communicated with the air inlet pipe (6), a wind wheel (11) is rotatably connected to the inner wall of the gas collecting hood (10), a baffle (12) is fixedly connected to the side wall of a rotating shaft of the wind wheel (11), and an air outlet (111) is formed in the inner wall of the gas collecting hood (10);
the liquid storage tank (3) and the pump liquid cavity (4) are filled with cooling liquid, the one-way liquid inlet pipe (8) only allows the cooling liquid to flow to the liquid storage tank (3) from the pump liquid cavity (4), and the one-way liquid return pipe (9) only allows the cooling liquid to flow to the pump liquid cavity (4) from the liquid storage tank (3).
2. The lithium battery pack for the new energy automobile according to claim 1, wherein a sliding groove (13) communicated with the air inlet pipe (6) is formed in a side wall of the box body (1), a permanent magnet (14) is connected in the sliding groove (13) in a sliding mode, a spiral coil (15) is embedded in the inner wall of the sliding groove (13), the permanent magnet (14) is elastically connected to the inner wall of the air inlet pipe (6) through a spring (16), and a plurality of semiconductor refrigerating pieces (17) coupled with the spiral coil (15) are installed in the pump liquid cavity (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110074546.1A CN112909411B (en) | 2021-01-20 | 2021-01-20 | Lithium cell group for new energy automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110074546.1A CN112909411B (en) | 2021-01-20 | 2021-01-20 | Lithium cell group for new energy automobile |
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| CN112909411A CN112909411A (en) | 2021-06-04 |
| CN112909411B true CN112909411B (en) | 2022-11-25 |
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| CN202110074546.1A Active CN112909411B (en) | 2021-01-20 | 2021-01-20 | Lithium cell group for new energy automobile |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113690516B (en) * | 2021-10-26 | 2022-07-05 | 深圳电通信息技术有限公司 | New energy automobile battery radiator fan drive arrangement |
| CN114335808A (en) * | 2022-01-05 | 2022-04-12 | 西安电子科技大学芜湖研究院 | Cooling system of new energy automobile group battery |
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| Publication number | Publication date |
|---|---|
| CN112909411A (en) | 2021-06-04 |
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