CN113300024A - Power battery liquid cooling device, power battery system and vehicle - Google Patents
Power battery liquid cooling device, power battery system and vehicle Download PDFInfo
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- CN113300024A CN113300024A CN202110560753.8A CN202110560753A CN113300024A CN 113300024 A CN113300024 A CN 113300024A CN 202110560753 A CN202110560753 A CN 202110560753A CN 113300024 A CN113300024 A CN 113300024A
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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
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6567—Liquids
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
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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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- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The embodiment of the invention provides a power battery liquid cooling device, a power battery system and a vehicle, wherein the power battery liquid cooling device comprises a lower box body frame, a heat management pipeline and a liquid cooling plate; the lower box body frame comprises a front frame beam, and is provided with a plurality of chambers for accommodating the power battery modules; the heat management pipeline is positioned between the front frame beam and the cavity; the liquid cooling plate is positioned below the chamber and connected with the heat management pipeline; the heat management pipeline transmits the cooling liquid to the liquid cooling plate, so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery module in the cavity. In the embodiment of the invention, the liquid cooling plate and the lower box body frame are integrated, the internal space of the power battery is utilized to the maximum extent, the heat management pipeline between the front frame beam and the cavity is connected with the liquid cooling plate to realize the transmission of cooling liquid, the traditional mode that the heat management pipeline is arranged on two sides of the battery is avoided, and the risk of damage and leakage of the heat management pipeline during side column collision is effectively reduced.
Description
Technical Field
The invention relates to the technical field of power battery liquid cooling, in particular to a power battery liquid cooling device, a power battery system and a vehicle.
Background
The car running type and super running type electric vehicles in the market have the power batteries as important components of power sources, and play a very key role. At present, a power battery on a vehicle is thermally managed by arranging thermal management pipelines on two sides of the power battery and cooling liquid in the thermal management pipelines.
However, the power battery is generally arranged at the bottom of the whole vehicle, and the problem of low ground clearance generally exists, so that when the vehicle passes through partial obstacles, once a side column collision occurs, the thermal management pipelines arranged at two sides of the power battery are extruded, when the stress received by the thermal management pipelines exceeds the limit of the thermal management pipelines, the thermal management pipelines are broken, and when the stress received by the thermal management pipelines exceeds the limit of the thermal management pipelines, an electric core deforms or cooling liquid leaks to cause internal short circuit, the thermal runaway of the power battery is triggered, and the safety of passengers in the vehicle is threatened.
Disclosure of Invention
In view of the above, embodiments of the present invention are proposed in order to provide a power battery liquid cooling device, a power battery system, and a vehicle that overcome or at least partially solve the above-described problems.
In order to solve the above problems, an embodiment of the present invention discloses a power battery liquid cooling device, including:
the lower box body frame comprises a front frame beam, and is provided with a plurality of chambers for accommodating the power battery modules;
a thermal management conduit between the front frame rail and the chamber; and
the liquid cooling plate is positioned below the cavity and is connected with the heat management pipeline;
wherein the heat management pipeline transmits cooling liquid to the liquid cooling plate so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery modules in the cavity.
Optionally, the lower box body frame comprises side frame beams, a middle longitudinal beam, a rear frame beam and a plurality of cross beams;
wherein the plurality of chambers are formed by combining the side frame beams, the center longitudinal beam, the rear frame beam and the plurality of cross beams.
Optionally, the lower box frame comprises a connecting column and a middle hanging point, and the cross beam is provided with a glue groove;
one end of the connecting column is fixedly connected with the liquid cooling plate, and the other end of the connecting column is fixedly connected with the cross beam; one end of the middle hanging point is fixedly connected with the liquid cooling plate, and the middle part of the middle hanging point is fixedly connected with the cross beam; the liquid cooling plate is fixedly connected with the cross beam through structural adhesive coated on the adhesive groove of the cross beam; one end of the liquid cooling plate is fixedly connected with the side frame beam, and the other end of the liquid cooling plate is fixedly connected with the middle longitudinal beam.
Optionally, the liquid cooling plate includes a liquid cooling upper plate and a liquid cooling lower plate.
Optionally, the device further comprises a protective bottom plate, wherein the protective bottom plate is provided with a through hole; the lower box body frame comprises a rivet nut;
and the protective bottom plate is fixedly connected below the liquid cooling plate by assembling bolts on the through holes of the protective bottom plate and the rivet nuts of the lower box body frame.
Optionally, the protective bottom plate is a steel plate, and polyvinyl chloride is sprayed on the outer surface of the protective bottom plate.
Optionally, the protection bottom plate is provided with a rib position.
Optionally, the cooling system further comprises a heat insulation pad located between the protective base plate and the liquid cooling plate.
The embodiment of the invention discloses a power battery system, which comprises a lower box frame, a power battery module and at least one power battery liquid cooling device of any one of the power battery liquid cooling devices; the power battery module is accommodated in the cavity of the lower box body frame, and the upper box body frame covers the lower box body frame; the power battery liquid cooling device comprises:
the lower box body frame comprises a front frame beam, and is provided with a plurality of chambers for accommodating the power battery modules;
a thermal management conduit between the front frame rail and the chamber; and
the liquid cooling plate is positioned below the cavity and is connected with the heat management pipeline;
wherein the heat management pipeline transmits cooling liquid to the liquid cooling plate so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery modules in the cavity.
Optionally, the lower box body frame comprises side frame beams, a middle longitudinal beam, a rear frame beam and a plurality of cross beams;
wherein the plurality of chambers are formed by combining the side frame beams, the center longitudinal beam, the rear frame beam and the plurality of cross beams.
Optionally, the lower box frame comprises a connecting column and a middle hanging point, and the cross beam is provided with a glue groove;
one end of the connecting column is fixedly connected with the liquid cooling plate, and the other end of the connecting column is fixedly connected with the cross beam; one end of the middle hanging point is fixedly connected with the liquid cooling plate, and the middle part of the middle hanging point is fixedly connected with the cross beam; the liquid cooling plate is fixedly connected with the cross beam through structural adhesive coated on the adhesive groove of the cross beam; one end of the liquid cooling plate is fixedly connected with the side frame beam, and the other end of the liquid cooling plate is fixedly connected with the middle longitudinal beam.
Optionally, the liquid cooling plate includes a liquid cooling upper plate and a liquid cooling lower plate.
Optionally, the device further comprises a protective bottom plate, wherein the protective bottom plate is provided with a through hole; the lower box body frame comprises a rivet nut;
and the protective bottom plate is fixedly connected below the liquid cooling plate by assembling bolts on the through holes of the protective bottom plate and the rivet nuts of the lower box body frame.
Optionally, the protective bottom plate is a steel plate, and polyvinyl chloride is sprayed on the outer surface of the protective bottom plate.
Optionally, the protection bottom plate is provided with a rib position.
Optionally, the cooling system further comprises a heat insulation pad located between the protective base plate and the liquid cooling plate.
The embodiment of the invention discloses a vehicle which comprises the power battery system.
The embodiment of the invention has the following advantages:
in the embodiment of the invention, the heat management pipeline positioned between the front frame beam and the cavity (the front end of the lower box body frame) is connected with the liquid cooling plate positioned below the cavity, and the cooling liquid is transmitted to the liquid cooling plate through the heat management pipeline, so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery modules in the cavity, and the temperature of the power battery modules is further controlled. In the embodiment of the invention, the liquid cooling plate and the lower box body frame are integrated, the internal space of the power battery is utilized to the maximum extent, the heat management pipeline between the front frame beam and the cavity is connected with the liquid cooling plate to realize the transmission of cooling liquid, the traditional mode that the heat management pipeline is arranged on two sides of the battery is avoided, and the risk of damage and leakage of the heat management pipeline during side column collision is effectively reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a power battery cooling apparatus according to the present invention;
FIG. 2 is a second schematic structural diagram of an embodiment of the power battery liquid cooling apparatus of the present invention;
FIG. 3 is a third schematic structural diagram of an embodiment of the power battery liquid cooling apparatus of the present invention;
FIG. 4 is a partial cross-sectional view in the Y-direction of an embodiment of the power cell cooling apparatus of the present invention;
FIG. 5 is a fourth schematic structural diagram of an embodiment of the power battery liquid cooling apparatus of the present invention;
FIG. 6 is a partial cross-sectional view in the X-direction of an embodiment of the power battery liquid cooling apparatus of the present invention.
Reference numerals:
100-lower box body frame, 110-front frame beam, 120-chamber, 130-middle longitudinal beam, 140-cross beam, 141-rubber groove, 150-side frame beam, 160-rear frame beam, 170-connecting column, 180-middle hanging point and 190-rivet nut;
400-liquid cooling plate, 410-liquid cooling upper plate, 420-liquid cooling lower plate; 500-protective floor, 510-polyvinyl chloride;
200-thermal management pipeline, 300-power battery module, 600-bolt, 700-heat insulation pad, 800-connecting part of cross beam and side frame beam, and 900-connecting part of cross beam and middle longitudinal beam.
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted; the same or similar reference numerals correspond to the same or similar parts; the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Referring to fig. 1, which shows one of the schematic structural diagrams of an embodiment of the power battery liquid cooling apparatus of the present invention, as can be seen, the power battery liquid cooling apparatus includes a lower case frame 100, a heat management pipeline 200 and a liquid cooling plate 400 (see fig. 4);
the lower box body frame 100 comprises a front frame beam 110, the lower box body frame 100 is provided with a plurality of chambers 120, and the chambers 120 are used for accommodating the power battery modules 300; the thermal management pipe 200 is located between the front frame beam 110 and the chamber 120; and the liquid cooling plate 400 is positioned below the chamber 120 and connected with the thermal management pipeline 200; wherein the thermal management pipeline 200 transmits the cooling liquid to the liquid cooling plate 400, so that the cooling liquid in the liquid cooling plate 400 exchanges heat with the power battery module 300 in the cavity 120.
The front end of the lower box frame 100 is arranged between the front frame beam 110 and the chamber 120, the number of the liquid cooling plates 400 corresponds to the number of the thermal management pipelines 200, and the number of the liquid cooling plates is changed correspondingly according to the arrangement number of the chambers 120 (the power battery modules 300); the power battery is composed of a plurality of power battery modules 300, and each power battery module 300 is composed of a plurality of battery cores, for example, 96 battery cores are shared in a certain power battery, each 12 battery cores form one power battery module 300, and 8 power battery modules 300 are shared; referring to fig. 2, there is shown a second schematic structural diagram of an embodiment of the power battery cooling device of the present invention, in which the power battery device corresponds to a vehicle traveling direction and a side pillar collision direction.
Specifically, the liquid cooling plate 400 is arranged below the chamber 120 of the lower case frame 100, and is connected with the liquid cooling plate 400 through the heat management pipeline 200 arranged between the front frame beam 110 and the chamber 120 (at the front end of the lower case frame 100), in the embodiment of the invention, the chamber 120 is divided into two rows, one liquid cooling plate 400 is arranged in each row, and the liquid cooling plate 400 is connected with one heat management pipeline 200 at the front end of the lower case frame 100, so that the cooling liquid in the liquid cooling plate 400 exchanges heat with the power battery modules 300 in the chamber 120, and the temperature of the power battery modules 300 is controlled.
In the embodiment of the invention, the liquid cooling plate 400 is integrated with the lower box body frame 100, the internal space of the power battery is utilized to the maximum extent, the heat management pipeline 200 positioned between the front frame beam 110 and the cavity 120 is connected with the liquid cooling plate 400 to realize the transmission of cooling liquid, the traditional mode that the heat management pipeline 200 is arranged on two sides of the battery is avoided, and the risk of damage and leakage of the heat management pipeline 200 during side column collision is effectively reduced.
Meanwhile, arranging the thermal management piping 200 between the front frame beam 110 and the cavity 120 (the front end of the lower case frame 100) can leave a space for designing a reinforcing structure at both sides of the lower case frame.
It should be noted that, in the embodiment of the present invention, the chambers 120 of the lower box frame 100 are not limited, and may be arranged in three rows, four rows, five rows, and the like, besides two rows, and the number of the liquid cooling plates 400 and the number of the thermal management pipes 200 vary according to the number of the arrangement rows of the chambers 120 (the power battery modules 300).
Referring to fig. 3, a third schematic structural view of an embodiment of the power battery liquid cooling apparatus of the present invention is shown, and as can be seen, the lower box frame 100 includes side frame beams 150, a middle longitudinal beam 130, a rear frame beam 160 and a plurality of cross beams 140; wherein a plurality of the chambers 120 are formed by combining the side frame members 150, the center longitudinal member 130, the rear frame member 160, and a plurality of the cross members 140.
Specifically, as can be seen in fig. 3, the embodiment of the present invention forms two rows of chambers 120 by combining two side frame beams 150, three cross beams 140, one middle longitudinal beam 130, and a rear frame beam 160, each row including 3 chambers 120. With one liquid-cooled panel 400 and one thermal management tube 200 for each column of chambers 120.
Referring to fig. 4, a partial cross-sectional view in the Y direction of an embodiment of the power battery liquid cooling apparatus of the present invention is shown, wherein the Y direction is a direction perpendicular to the traveling direction of the vehicle, the lower case frame 100 includes a connection column 170 and a middle mounting point 180, and the cross beam 140 is provided with a glue groove 141; one end of the connecting column 170 is fixedly connected with the liquid cooling plate 400, and the other end is fixedly connected with the cross beam 140; one end of the middle hanging point 180 is fixedly connected with the liquid cooling plate 400, and the middle part is fixedly connected with the cross beam 140; the liquid cooling plate 400 is fixedly connected with the cross beam 140 through structural adhesive coated on the adhesive groove 141 of the cross beam 140, and referring to fig. 6, the liquid cooling plate is an X-direction partial sectional view of an embodiment of the power battery liquid cooling device of the present invention, wherein the X direction is a vehicle driving direction; one end of the liquid cooling plate 400 is fixedly connected to the side frame beam 150, and the other end is fixedly connected to the center longitudinal beam 130.
The middle mounting point 180 is disposed on the cross beam 140 and located in the middle of the side frame beam 150 and the middle longitudinal beam 130, and is used for mounting the power battery module 300 and/or stabilizing the power battery module 300.
Specifically, the liquid cooling plate 400 is located below the chamber 120 of the lower frame, and one end of the liquid cooling plate 400 is friction stir welded to the side frame beam 150, see the connection 800 between the cross beam and the side frame beam in fig. 4, and the other end is friction stir welded to the middle longitudinal beam 130, see the connection 900 between the cross beam and the middle longitudinal beam in fig. 4. Meanwhile, the liquid cooling plate 400 is welded with the connecting column 170, the bottom (one end) CMT (cold metal transfer) of the middle hanging point 180, the beam 140 is welded with the other end (top) of the connecting column 170 and the middle of the middle hanging point 180, and the liquid cooling plate 400 is connected with the structural adhesive coated on the glue groove 141 of the beam 140, so that the liquid cooling plate 400 is fixedly connected with the beam 140, the liquid cooling plate 400 is fixedly connected below the cavity 120 of the lower frame body frame, and the integral sealing of the lower box body is ensured.
In an example of the present invention, a sealant is added between the first cross beam 140 at the front end of the lower box frame 100 and the liquid cooling plate 400, so that when the thermal management pipeline 200 leaks, the cooling liquid does not flow to the region of the cavity 120 (power battery module 300).
In one embodiment of the present invention, the liquid-cooled plate 400 includes a liquid-cooled upper plate 410 and a liquid-cooled lower plate 420.
Specifically, the liquid-cooled plate 400 is divided into a liquid-cooled upper plate 410 and a liquid-cooled lower plate 420. The upper liquid-cooled plate 400 and the lower liquid-cooled plate 400 are welded by brazing, and the upper liquid-cooled plate 410 and the lower liquid-cooled plate 420 are hollow and used for containing cooling liquid.
Referring to fig. 5, a fourth schematic structural diagram of an embodiment of the power battery liquid cooling device of the present invention is shown, as can be seen from the figure, the power battery liquid cooling device further includes a protection bottom plate 500, where the protection bottom plate 500 is provided with a through hole; the lower case frame 100 includes a blind rivet nut 190; the protection base plate 500 is fixedly connected to the lower side of the liquid cooling plate 400 by assembling bolts 600 on the through holes of the protection base plate 500 and the blind rivet nuts 190 of the lower case frame 100.
In an embodiment of the present invention, the protection base plate 500 is a steel plate, and polyvinyl chloride 510 is sprayed on an outer surface of the protection base plate 500.
In an embodiment of the present invention, the protection bottom plate 500 is provided with a rib position.
Specifically, be equipped with the through-hole at protection bottom plate 500, lower box frame 100 includes rivet nut 190 (or adopts steel wire facing to replace rivet nut 190), through at protection bottom plate 500's through-hole and below the assembly bolt 600 on box frame 100's rivet nut 190, with protection bottom plate 500 fixed connection in the below of liquid cooling plate 400, protection bottom plate 500 is the steel sheet, and protection bottom plate 500's surface spraying has PVC (polyvinyl chloride 510) to be equipped with at protection bottom plate 500 along the strengthening rib (muscle position) of vehicle direction of travel.
In the embodiment of the invention, PVC (polyvinyl chloride 510) is sprayed on the outer surface of the protective bottom plate 500, and the protective bottom plate 500 is provided with the reinforcing ribs (rib positions) along the running direction of the vehicle, so that the vehicle can be protected to the bottom of the battery to the greatest extent when the vehicle runs and is scratched by the bottom.
Referring to fig. 4, the power battery liquid cooling apparatus further includes a heat insulation pad 700, the heat insulation pad 700 being located between the protection bottom plate 500 and the liquid cooling plate 400.
Specifically, a heat insulation pad 700 is disposed on the protection bottom plate 500 and the liquid cooling plate 400, and the heat insulation pad 700 is used for enhancing the heat insulation capability of the bottom of the power battery.
The embodiment of the invention discloses a power battery system, which comprises a lower box frame, a power battery module and a power battery liquid cooling device, wherein the lower box frame is provided with a plurality of lower box frames; the power battery module is accommodated in the cavity of the lower box body frame, and the upper box body frame covers the lower box body frame; the power battery liquid cooling device comprises:
the lower box body frame comprises a front frame beam, and is provided with a plurality of chambers for accommodating the power battery modules;
a thermal management conduit between the front frame rail and the chamber; and
the liquid cooling plate is positioned below the cavity and is connected with the heat management pipeline;
wherein the heat management pipeline transmits cooling liquid to the liquid cooling plate so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery modules in the cavity.
In one embodiment of the invention, the lower box body frame comprises side frame beams, a middle longitudinal beam, a rear frame beam and a plurality of cross beams;
wherein the plurality of chambers are formed by combining the side frame beams, the center longitudinal beam, the rear frame beam and the plurality of cross beams.
In one embodiment of the invention, the lower box body frame comprises a connecting column and a middle hanging point, and the cross beam is provided with a rubber groove;
one end of the connecting column is fixedly connected with the liquid cooling plate, and the other end of the connecting column is fixedly connected with the cross beam; one end of the middle hanging point is fixedly connected with the liquid cooling plate, and the middle part of the middle hanging point is fixedly connected with the cross beam; the liquid cooling plate is fixedly connected with the cross beam through structural adhesive coated on the adhesive groove of the cross beam; one end of the liquid cooling plate is fixedly connected with the side frame beam, and the other end of the liquid cooling plate is fixedly connected with the middle longitudinal beam.
In an embodiment of the present invention, the liquid cooling plate includes a liquid cooling upper plate and a liquid cooling lower plate.
In one embodiment of the invention, the device also comprises a protective bottom plate, wherein the protective bottom plate is provided with a through hole; the lower box body frame comprises a rivet nut;
and the protective bottom plate is fixedly connected below the liquid cooling plate by assembling bolts on the through holes of the protective bottom plate and the rivet nuts of the lower box body frame.
In one embodiment of the invention, the protective bottom plate is a steel plate, and polyvinyl chloride is sprayed on the outer surface of the protective bottom plate.
In an embodiment of the present invention, the protection bottom plate is provided with a rib position.
In an embodiment of the present invention, a heat insulation pad is further included, and the heat insulation pad is located between the protective base plate and the liquid cooling plate.
The embodiment of the invention discloses a vehicle, which comprises a power battery system, wherein the power battery system comprises a lower box body frame, a power battery module and a power battery liquid cooling device; the power battery module is accommodated in the cavity of the lower box body frame, and the upper box body frame covers the lower box body frame; the power battery liquid cooling device comprises:
the lower box body frame comprises a front frame beam, and is provided with a plurality of chambers for accommodating the power battery modules;
a thermal management conduit between the front frame rail and the chamber; and
the liquid cooling plate is positioned below the cavity and is connected with the heat management pipeline;
wherein the heat management pipeline transmits cooling liquid to the liquid cooling plate so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery modules in the cavity.
In one embodiment of the invention, the lower box body frame comprises side frame beams, a middle longitudinal beam, a rear frame beam and a plurality of cross beams;
wherein the plurality of chambers are formed by combining the side frame beams, the center longitudinal beam, the rear frame beam and the plurality of cross beams.
In one embodiment of the invention, the lower box body frame comprises a connecting column and a middle hanging point, and the cross beam is provided with a rubber groove;
one end of the connecting column is fixedly connected with the liquid cooling plate, and the other end of the connecting column is fixedly connected with the cross beam; one end of the middle hanging point is fixedly connected with the liquid cooling plate, and the middle part of the middle hanging point is fixedly connected with the cross beam; the liquid cooling plate is fixedly connected with the cross beam through structural adhesive coated on the adhesive groove of the cross beam; one end of the liquid cooling plate is fixedly connected with the side frame beam, and the other end of the liquid cooling plate is fixedly connected with the middle longitudinal beam.
In an embodiment of the present invention, the liquid cooling plate includes a liquid cooling upper plate and a liquid cooling lower plate.
In one embodiment of the invention, the device also comprises a protective bottom plate, wherein the protective bottom plate is provided with a through hole; the lower box body frame comprises a rivet nut;
and the protective bottom plate is fixedly connected below the liquid cooling plate by assembling bolts on the through holes of the protective bottom plate and the rivet nuts of the lower box body frame.
In one embodiment of the invention, the protective bottom plate is a steel plate, and polyvinyl chloride is sprayed on the outer surface of the protective bottom plate.
In an embodiment of the present invention, the protection bottom plate is provided with a rib position.
In an embodiment of the present invention, a heat insulation pad is further included, and the heat insulation pad is located between the protective base plate and the liquid cooling plate.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the embodiments of the invention.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The power battery liquid cooling device, the power battery system and the vehicle provided by the invention are described in detail, and specific examples are applied in the description to explain the principle and the implementation mode of the invention, and the description of the examples is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A power battery liquid cooling device, characterized by comprising:
the lower box body frame comprises a front frame beam, and is provided with a plurality of chambers for accommodating the power battery modules;
a thermal management conduit between the front frame rail and the chamber; and
the liquid cooling plate is positioned below the cavity and is connected with the heat management pipeline;
wherein the heat management pipeline transmits cooling liquid to the liquid cooling plate so that the cooling liquid in the liquid cooling plate exchanges heat with the power battery modules in the cavity.
2. The power battery liquid cooling device of claim 1, wherein the lower box frame comprises side frame beams, a middle longitudinal beam, a rear frame beam and a plurality of cross beams;
wherein the plurality of chambers are formed by combining the side frame beams, the center longitudinal beam, the rear frame beam and the plurality of cross beams.
3. The power battery liquid cooling device of claim 2, wherein the lower box frame comprises a connecting column and a middle hanging point, and the cross beam is provided with a glue groove;
one end of the connecting column is fixedly connected with the liquid cooling plate, and the other end of the connecting column is fixedly connected with the cross beam; one end of the middle hanging point is fixedly connected with the liquid cooling plate, and the middle part of the middle hanging point is fixedly connected with the cross beam; the liquid cooling plate is fixedly connected with the cross beam through structural adhesive coated on the adhesive groove of the cross beam; one end of the liquid cooling plate is fixedly connected with the side frame beam, and the other end of the liquid cooling plate is fixedly connected with the middle longitudinal beam.
4. The power battery liquid cooling apparatus of claim 1, wherein the liquid cooled plate comprises a liquid cooled upper plate and a liquid cooled lower plate.
5. The power battery liquid cooling device of claim 1, further comprising a protective bottom plate, wherein the protective bottom plate is provided with a through hole; the lower box body frame comprises a rivet nut;
and the protective bottom plate is fixedly connected below the liquid cooling plate by assembling bolts on the through holes of the protective bottom plate and the rivet nuts of the lower box body frame.
6. The power battery liquid cooling device of claim 5, characterized in that the protection bottom plate is a steel plate, and the outer surface of the protection bottom plate is coated with polyvinyl chloride.
7. The power battery hydraulic cooling device of claim 5, wherein the protective bottom plate is provided with a rib position.
8. The power battery liquid cooling device of claim 5, further comprising a thermal insulation pad located between the protective base plate and the liquid cooling plate.
9. A power battery system, characterized in that it comprises an upper box frame, a power battery module and at least one power battery hydro-cooling device according to any one of claims 1 to 8; the power battery module is accommodated in the cavity of the lower case frame, and the upper case frame covers the lower case frame.
10. A vehicle comprising a power battery system as claimed in claim 9.
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| CN202110560753.8A CN113300024A (en) | 2021-05-21 | 2021-05-21 | Power battery liquid cooling device, power battery system and vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024076A (en) * | 2021-11-02 | 2022-02-08 | 安徽舟之航电池有限公司 | Power battery pack lower box body of novel integrated liquid cooling system for new energy automobile |
| CN114267917A (en) * | 2021-11-26 | 2022-04-01 | 浙江零跑科技股份有限公司 | Vehicle body and battery pack integrated mounting point structure |
| CN114361693A (en) * | 2022-01-06 | 2022-04-15 | 广州小鹏汽车科技有限公司 | Power battery lower box body |
| CN114374021A (en) * | 2022-01-06 | 2022-04-19 | 广州小鹏汽车科技有限公司 | Power battery assembly |
| CN114614151A (en) * | 2022-03-21 | 2022-06-10 | 东风汽车集团股份有限公司 | Power battery cooling system arrangement structure and power battery cooling method |
| WO2024113497A1 (en) * | 2022-12-01 | 2024-06-06 | 宁德时代新能源科技股份有限公司 | Lower case body of battery, battery, and electrical apparatus |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208690457U (en) * | 2018-09-01 | 2019-04-02 | 杭州捷能科技有限公司 | The lightweight battery cabinet of the outer heat management of one plants case |
| CN209472023U (en) * | 2019-01-29 | 2019-10-08 | 广州小鹏汽车科技有限公司 | Battery pack and electric car |
| CN210092152U (en) * | 2019-04-24 | 2020-02-18 | 北京新能源汽车股份有限公司 | Battery pack shell, power battery pack and vehicle with power battery pack shell |
| CN210866302U (en) * | 2019-11-29 | 2020-06-26 | 昆山宝创新能源科技有限公司 | Liquid cooling power battery box body assembly |
| CN111370813A (en) * | 2018-12-25 | 2020-07-03 | 合肥国轩高科动力能源有限公司 | Power battery pack with built-in cooling pipeline |
| CN111674250A (en) * | 2020-06-09 | 2020-09-18 | 广州小鹏汽车科技有限公司 | Battery system and vehicle |
| CN211789381U (en) * | 2020-04-28 | 2020-10-27 | 北京新能源汽车股份有限公司 | Liquid cooling system, battery system and car |
-
2021
- 2021-05-21 CN CN202110560753.8A patent/CN113300024A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208690457U (en) * | 2018-09-01 | 2019-04-02 | 杭州捷能科技有限公司 | The lightweight battery cabinet of the outer heat management of one plants case |
| CN111370813A (en) * | 2018-12-25 | 2020-07-03 | 合肥国轩高科动力能源有限公司 | Power battery pack with built-in cooling pipeline |
| CN209472023U (en) * | 2019-01-29 | 2019-10-08 | 广州小鹏汽车科技有限公司 | Battery pack and electric car |
| CN210092152U (en) * | 2019-04-24 | 2020-02-18 | 北京新能源汽车股份有限公司 | Battery pack shell, power battery pack and vehicle with power battery pack shell |
| CN210866302U (en) * | 2019-11-29 | 2020-06-26 | 昆山宝创新能源科技有限公司 | Liquid cooling power battery box body assembly |
| CN211789381U (en) * | 2020-04-28 | 2020-10-27 | 北京新能源汽车股份有限公司 | Liquid cooling system, battery system and car |
| CN111674250A (en) * | 2020-06-09 | 2020-09-18 | 广州小鹏汽车科技有限公司 | Battery system and vehicle |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114024076A (en) * | 2021-11-02 | 2022-02-08 | 安徽舟之航电池有限公司 | Power battery pack lower box body of novel integrated liquid cooling system for new energy automobile |
| CN114267917A (en) * | 2021-11-26 | 2022-04-01 | 浙江零跑科技股份有限公司 | Vehicle body and battery pack integrated mounting point structure |
| CN114361693A (en) * | 2022-01-06 | 2022-04-15 | 广州小鹏汽车科技有限公司 | Power battery lower box body |
| CN114374021A (en) * | 2022-01-06 | 2022-04-19 | 广州小鹏汽车科技有限公司 | Power battery assembly |
| CN114614151A (en) * | 2022-03-21 | 2022-06-10 | 东风汽车集团股份有限公司 | Power battery cooling system arrangement structure and power battery cooling method |
| CN114614151B (en) * | 2022-03-21 | 2023-09-05 | 东风汽车集团股份有限公司 | Power battery cooling system arrangement structure and power battery cooling method |
| WO2024113497A1 (en) * | 2022-12-01 | 2024-06-06 | 宁德时代新能源科技股份有限公司 | Lower case body of battery, battery, and electrical apparatus |
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