CN117317448B - Commercial car battery - Google Patents
Commercial car battery Download PDFInfo
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- CN117317448B CN117317448B CN202311598538.2A CN202311598538A CN117317448B CN 117317448 B CN117317448 B CN 117317448B CN 202311598538 A CN202311598538 A CN 202311598538A CN 117317448 B CN117317448 B CN 117317448B
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- battery
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- 239000000498 cooling water Substances 0.000 claims abstract description 90
- 238000001816 cooling Methods 0.000 claims abstract description 69
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000005192 partition Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 2
- 230000020169 heat generation Effects 0.000 abstract description 2
- 230000004308 accommodation Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
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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
-
- 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
- H01M10/615—Heating or keeping warm
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/63—Control systems
- H01M10/637—Control systems characterised by the use of reversible temperature-sensitive devices, e.g. NTC, PTC or bimetal devices; characterised by control of the internal current flowing through the cells, e.g. by switching
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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
-
- 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
-
- 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
-
- 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
- H01M10/6571—Resistive heaters
-
- 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
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- 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
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- 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
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Automation & Control Theory (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Aviation & Aerospace Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention belongs to the technical field of batteries, and particularly relates to a commercial vehicle battery which comprises a battery frame, six electric core groups arranged in the battery frame, a cooling plate and a battery control system. According to the technical scheme, through the structures of the battery frame and the cooling plate, through the layout of the cooling water channel and the PTC heating circuit, the conditions of heat generation and cooling requirement of the battery module during the working period are better matched, so that the temperature of the battery system is in the optimal range, and the stable output of the electric quantity of the battery core is ensured. Through the design of electric core group and battery control system in the frame for battery control system sets up in the battery structure, no longer sets up battery control system's place space alone, has improved vehicle space utilization, and this technical scheme is through the design of compressed insulating piece and circuit board and temperature sensor, under the circumstances of guaranteeing battery work, reduces the cost of battery.
Description
Technical Field
The invention belongs to the technical field of batteries, relates to the field of commercial vehicle batteries, and in particular relates to a commercial vehicle battery.
Background
The electric commercial vehicle has the characteristics of zero emission, the market share rises year by year, and the battery system is one of main components of the electric commercial vehicle and is a key factor for realizing the performance of the electric commercial vehicle. The structure of the electric commercial vehicle is different from the application and structure of the electric passenger vehicle, and the layout of the electric commercial vehicle using the battery system is completely different from that of the electric passenger vehicle.
The battery system arrangement of the existing electric commercial vehicle is basically divided into two cases, the first case is that the battery system is arranged between the cab and the vehicle cabin; the second case is where the battery system is disposed below the vehicle cabin. In the first case, the battery system occupies the longitudinal space of the vehicle and is not generally considered from the viewpoint of the overall appearance, for which reason the electric commercial vehicle of this construction is difficult to enter the market, basically all experimental vehicles. In the second case, since the battery system is disposed below the vehicle compartment, does not occupy the space above the vehicle, and is equivalent to an increase in the weight of the chassis, it is basically in line with the public point of view, and the electric commercial vehicle on the market now basically adopts this layout structure.
However, the overall structure, performance and the like of the conventional commercial vehicle battery can not meet the actual requirements of the commercial vehicle, and the market sales of the conventional commercial vehicle are limited.
Disclosure of Invention
The invention aims to provide a commercial vehicle battery, which is used for improving the performance of the commercial vehicle battery and facilitating the installation and replacement of the commercial vehicle battery so as to solve the problems in the prior art.
In order to achieve the above purpose, the present application is implemented by the following technical schemes:
a commercial vehicle battery comprises a battery frame, six battery cell groups arranged in the battery frame, a cooling plate and a battery control system;
the six battery cell groups are respectively a first battery cell group, a second battery cell group, a third battery cell group, a fourth battery cell group, a fifth battery cell group and a sixth battery cell group; the first battery cell group to the fifth battery cell group have the same structure and are composed of two identical battery modules, and the sixth battery cell group is composed of a group of battery modules;
the cooling plate is attached to the lower part of the battery cell group, a cooling water channel is arranged in the cooling plate, and a water inlet and a water outlet which are communicated with external cooling water are arranged on the cooling plate; a PTC heating circuit is attached below the cooling plate; the cooling water channels in the cooling plate are of parallel serpentine pipe structures, the distances between two adjacent parallel cooling water channels are not completely equal, and the PTC heating circuit is arranged on the lower surface of the cooling plate between the parallel cooling water channels;
the battery control system comprises a battery control module, five battery core acquisition modules and a power distribution module, wherein one battery core acquisition module is respectively connected with two battery core groups through wires, and one battery core group is a sixth battery core group.
Further, the battery frame comprises a lower bottom plate, a shell and an upper cover plate; the lower bottom plate, the shell and the upper cover plate are connected through bolts; the shell is divided into two parts by a longitudinal partition plate, namely a first shell and a second shell, and three battery cell accommodating cavities with the same specification are separated in the first shell through two transverse partition plates; the second shell is internally divided into three battery core accommodating cavities and a battery control system accommodating cavity through three transverse partition boards, wherein the specifications of the two battery core accommodating cavities are the same as those of the three battery core accommodating cavities of the first shell, and the specifications of the other battery core accommodating cavity are the same as those of the battery control system accommodating cavity.
Further, the cooling plate comprises two independent areas, namely a first cooling area and a second cooling area, wherein the first cooling area corresponds to the first shell, and the second cooling area corresponds to the second shell.
Further, the cooling plate comprises an upper plate and a lower plate, a cooling water groove which is sunken downwards is formed in the lower plate, and a cooling water channel is formed between the cooling water groove and the lower surface of the upper plate; the cooling water channel is integrally arranged in a serpentine manner and comprises a plurality of straight cooling water channels and curved cooling water channels connected with two adjacent straight cooling water channels.
Further, a protrusion extending inward is provided in at least one of the straight cooling water passages.
Further, a region without a cooling water passage is formed between the first cooling region and the second cooling region, and a PTC heating circuit perpendicular to the direct cooling water passage is provided in the region.
Further, the power of each PTC heating line is not exactly the same.
Further, each module of the battery control system is arranged in three rows parallel to the transverse partition plate in the battery control system accommodating cavity, wherein the battery control module is arranged in the middle row, and a cooling water pipe connected with the cooling plate passes through the battery control system accommodating cavity between the longitudinal partition plate and the battery control module.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, through the structures of the battery frame and the cooling plate, through the layout of the cooling water channel and the PTC heating circuit, the conditions of heat generation and cooling requirement of the battery module during the working period are better matched, so that the temperature of the battery system is in the optimal range, and the stable output of the electric quantity of the battery core is ensured.
According to the technical scheme, through the design of the battery cell group and the battery control system in the frame, the battery control system is arranged in the battery structure, the placement space of the battery control system is not independently arranged, the vehicle space utilization rate is improved, and the cost of the battery is reduced under the condition that the battery works due to the design of the compressed insulating sheet, the circuit board and the temperature sensor.
Drawings
Fig. 1 is an exploded view of a battery structure according to the present invention.
Fig. 2 is a top view of a battery frame provided with a battery cell stack according to the present invention.
Fig. 3 is a schematic view of the structure of the battery frame according to the present invention.
FIG. 4 is a schematic view of a cooling plate structure according to the present invention.
Fig. 5 is a schematic view of section A-A of fig. 4.
Fig. 6 is an enlarged view at B of fig. 5.
Fig. 7 is a schematic view of an arrangement within a battery control system receiving cavity.
Reference numerals illustrate:
1. a lower base plate; 2. a battery frame; 3. a cooling plate; 4. a cell group; 5. an upper cover plate; 6. a sixth cell group; 7. a wire; 8. a circuit board; 9. a water-cooling water inlet pipe; 10. PTC heating circuit; 11. a battery control system; 12. a longitudinal separator; 13. a transverse partition; 14. water-cooling the water outlet pipe; 15. a cooling water pipe; 21. a mounting part; 22. a mounting hole; 23. a first cell receiving cavity; 24. a second cell receiving cavity; 25. a third cell receiving cavity; 26. a fourth cell receiving cavity; 27. a fifth cell receiving cavity; 28. a sixth cell receiving cavity; 29. a battery control system accommodation chamber; 31. a first cooling zone; 32. a second cooling zone; 33. a cooling water inlet; 34. a cooling water outlet; 35. a first upper plate; 36. a first lower plate; 37. a protruding portion; 38. a first cooling water channel; 41. a first cell group; 42. the second cell group; 43. the third cell group; 44. a fourth cell group; 45. a fifth cell group; 101. A lower plate body, 102, and an extension; 103. an arc-shaped connecting part; 111. a battery control module; 112. the first battery cell acquisition module; 113. the second battery cell acquisition module; 114. the third cell acquisition module; 115. a fourth cell acquisition module; 116. a fifth cell acquisition module; 117. and a power distribution module.
Detailed Description
The following detailed description of the present invention is provided by way of example only, and is not to be construed as limiting the scope of the invention.
The present application relates to commercial vehicle batteries, and in particular to commercial vehicle battery structures, it being understood that commercial vehicle structures are different from passenger vehicle structures, such that commercial vehicle battery structures are different from passenger vehicle battery structures, and the technology relates to commercial vehicle battery structures and is not applicable to passenger vehicle battery structures.
In this technical scheme, commercial car battery sets up in the below in carriage, and specific commercial car battery structure still includes other parts, because this technical scheme only is to commercial car battery structure's improvement, do not relate to other parts of battery structure, such as battery control etc. in this case, the applicant does not all carry out one-to-one to each part of battery structure or introduce, and the battery structure of commercial car should all be clear to the person skilled in the art, therefore, can not regard this application to the insufficient disclosure of battery structure, and the part that does not disclose in this application all belongs to prior art or the conventional technology that the person skilled in the art all knows.
As shown in fig. 1 to 4, the battery structure of this technical scheme includes the battery casing, the battery casing of this application is used for playing the effect such as support protection to the battery, in this embodiment, adopt aluminum alloy battery casing, guarantee promptly to have enough intensity and reduce holistic weight, the battery casing of this embodiment is rectangle generally, specifically regard as the space shape below the commercial car carriage to be standard, be rectangle basically, if set up two or more than two battery structures below the carriage, then the battery casing also can be square, consequently, the realization of this application technical scheme is not influenced to the concrete shape of battery casing.
The battery housing includes a battery frame in which a longitudinal separator 12 is provided, which divides the battery frame into left and right parts (here, for the purpose of illustrating the technical scheme only, the longitudinal separator may also be provided transversely, the battery frame is divided into front and rear parts, and practically the same scheme), and the battery frame is generally divided into two large parts by the longitudinal separator, and in this embodiment, a plurality of transverse separators are further included in the battery frame.
Specifically, the battery housing of the present application includes a lower plate 1, a battery frame 2, and an upper cover plate 5; the lower plate 1, the battery frame 2 and the upper cover plate 5 are connected by bolts. The battery frame 2 is rectangular or square, in particular rectangular or square, depending on the specific situation of the commercial vehicle and without affecting the implementation of the solution according to the application, see the description above.
The battery frame 2 is divided into two parts by a longitudinal partition plate 12, namely a first battery frame and a second battery frame, wherein the first battery frame is divided into three battery cell accommodating cavities with the same specification by two transverse partition plates 13, namely a first battery cell accommodating cavity 23, a second battery cell accommodating cavity 24 and a third battery cell accommodating cavity 25; the second battery frame is divided into three battery cell accommodating cavities and a battery control system accommodating cavity 29 by three transverse partition plates 13, wherein the three battery cell accommodating cavities are a fourth battery cell accommodating cavity 26, a fifth battery cell accommodating cavity 27 and a sixth battery cell accommodating cavity 28 respectively, the fourth battery cell accommodating cavity and the fifth battery cell accommodating cavity have the same specification as the three battery cell accommodating cavities of the first shell, and the sixth battery cell accommodating cavity has the same specification as the battery control system accommodating cavity.
The lower bottom plate 1 is of a flat plate-shaped structure and is used for shielding the lower end of the battery frame 2, the portion, opposite to the range of the battery frame 2, of the lower bottom plate 1 is of a lower bottom plate body 101, the lower bottom plate is of a plane structure, a circle of extension portion 102 is formed around the lower bottom plate body 101, a plurality of through holes are formed in the extension portion 102 and are used for penetrating through battery fixing bolts, the upper surface of the extension portion 102 is higher than the upper surface of the lower bottom plate body 101, an arc-shaped connecting portion 103 is arranged between the extension portion 102 and the lower bottom plate body 101, the arc-shaped connecting portion 103 and the extension portion 102 form an integrated structure.
The outer side surface of the battery frame 2 is provided with a water cooling water inlet pipe 9 and a water cooling water outlet pipe 14 which are respectively connected with a corresponding cooling water pipe 15 in the battery frame; a cooling plate 3 is arranged below the battery frame 2, the cooling plate 3 is positioned above the lower bottom plate 1, a cooling water flow channel is arranged in the cooling plate 3, and a cooling water interface connected with a cooling water pipe 15 and comprising a cooling water inlet 33 and a cooling water outlet 34 is arranged on the cooling plate 3. A lower sealing ring is arranged between the lower bottom plate 1 and the battery frame 2, an upper sealing ring is arranged between the upper cover plate 5 and the battery frame 2, and four pressing strips corresponding to the frame of the battery frame are arranged on the lower surface of the lower bottom plate.
A plurality of mounting portions 21 are provided on the left and right side plates (or the front and rear side plates) of the battery frame 2 in opposition, and mounting holes 22 are provided on the mounting portions 21. A plurality of control module mounting frames are provided in the battery control system accommodation chamber 29, and a relay box mounting frame is further included, which ensures that the main body direction of the relay box is parallel to the direction of the lateral partition. The mounting end surfaces of the plurality of control module mounting brackets are not all in the same plane.
The commercial car battery of this application is provided with six electric core groups 4 of establishing ties in battery frame 2, is first electric core group 41, second electric core group 42, third electric core group 43, fourth electric core group 44, fifth electric core group 45 and sixth electric core group 6 respectively, and wherein the structure and the size of first electric core group to fifth electric core group are the same, constitute by two sets of the same battery module, and sixth electric core group 6 comprises a set of battery module. The first electric core group 41 is arranged in the first electric core accommodating cavity 23, the second electric core group 42 is arranged in the second electric core accommodating cavity 24, the third electric core group 43 is arranged in the third electric core accommodating cavity 25, the fourth electric core group 44 is arranged in the fourth electric core accommodating cavity 26, the fifth electric core group 45 is arranged in the fifth electric core accommodating cavity 27, and the sixth electric core group 6 is arranged in the sixth electric core accommodating cavity 28.
The battery control system 11 is connected to each of the cell groups 4 via the lead wires 7, and further, other structures are included to realize the functions of the battery, and these structures are not described in detail because they are not included in the present modification technique.
In this embodiment, each group of battery modules includes a plurality of electric cores (obtained commercially), the types of the electric cores can be selected according to needs, insulating sheets are disposed between two adjacent electric cores, the number of the electric cores included in each group of battery modules is not explicitly required in this example, a user selects according to actual needs, on one hand, the use of the insulating sheets can realize electric insulation between the two electric cores, and on the other hand, when the electric cores are expanded, there is a swelling space, but the insulating sheets in the technical scheme are not simply placed between the two electric cores, but are compressed to a certain extent, and the compression rate is usually not more than 20% of the thickness of the insulating sheets.
Each group of battery modules is provided with a circuit board 8, the electrode of each battery cell is connected with a battery cell wire, and a voltage sensor connected with the battery cell wire is arranged on the circuit board 8. A temperature sensor is provided on the circuit board 8, the temperature sensor being in contact with the battery cell. The battery cells of each group of battery modules do not have a one-to-one correspondence with the temperature sensors, i.e. in the technical scheme, each battery cell does not correspond to one temperature sensor.
The cooling plate 3 of the present embodiment includes two independent areas, namely, a first cooling area 31 and a second cooling area 32, wherein the first cooling area 31 corresponds to the first housing, and the second cooling area 32 corresponds to the second housing. In embodiments where the first cooling zone and the second cooling zone are separate structures that are assembled side-by-side during battery assembly, the cooling plates may be a unitary structure that is divided into two separate cooling zones on a unitary cooling plate in other embodiments of the present application.
The two independent first cooling areas and the second cooling areas of the embodiment have basically the same overall structure, are formed by combining two plates, are provided with cooling water grooves with set shapes by a stamping mode on a lower plate, and are sealed into cooling water channels by an upper plate.
Specifically, the first cooling area includes a first upper plate 35 and a first lower plate 36, and a first cooling water groove recessed downward is provided on the first lower plate 36, and forms a first cooling water channel 38 with the lower surface of the first upper plate 35. The first cooling water channels are integrally arranged in a serpentine shape and comprise a plurality of first straight cooling water channels which are parallel to each other and first bent cooling water channels which are connected with the end parts of the two adjacent first straight cooling water channels, and the number of the first bent cooling water channels is matched with that of the first straight cooling water channels.
The second cooling area comprises a second upper plate and a second lower plate, a second cooling water groove which is sunken downwards is formed in the second lower plate, and a second cooling water channel is formed in the second cooling water groove and the lower surface of the second upper plate. The second cooling water channels are integrally arranged in a serpentine shape, and comprise a plurality of second straight cooling water channels which are parallel to each other and second bent cooling water channels which are connected with the end parts of the two adjacent second straight cooling water channels, and the number of the second bent cooling water channels is matched with that of the second straight cooling water channels.
The first direct cooling water channels and the second direct cooling water channels are all parallel to each other, and the distance between every two adjacent first direct cooling water channels is not identical, the distance between every two adjacent second direct cooling water channels is not identical, the extension line of the first direct cooling water channel on the second cooling area is not completely coincident with a certain second direct cooling water channel on the second cooling area, and for this reason, the shapes of the first cooling water channel and the second cooling water channel are not identical (here means that the integral cooling water channel arrangement of the first cooling area is not identical with the integral cooling water channel arrangement of the second cooling area). The arrangement of the specific first and second direct-cooling water channels is based on specific temperature detection data, and the arrangement density of the cooling water channels is generally higher in the region where the temperature is high than in other regions.
In the technical solution of the present application, at least one protruding portion 37 extending toward the inside of the first straight cooling water passage is provided on the first straight cooling water passage, and likewise, at least one protruding portion extending toward the inside of the second straight cooling water passage is provided on the second straight cooling water passage. The purpose of the provision of these projections is to disturb the flow of cooling water, i.e. to create turbulence when the cooling water passes the projections, and to increase the heat exchange.
A PTC heating line 10 is attached below the cooling plate 3, and is disposed between parallel straight cooling water passages, and does not interfere with the straight cooling water passages, and a PTC heating line perpendicular to the parallel straight cooling water passages is disposed in the intermediate region (a region where a part of the cooling water passages are not disposed between the first cooling region and the second cooling region). And on the other hand, the power of each PTC heating circuit is not completely the same, and the specific situation is determined according to the temperature distribution detection result.
The modules of the battery control system 11 are arranged in three rows parallel to the transverse partition in the battery control system accommodation chamber 29, wherein the battery control modules are arranged in the middle row, and the cooling water pipes 15 connected to the cooling plates pass through the battery control system accommodation chamber 29 between the longitudinal partition 12 and the battery control modules 111.
That is, the above modules are arranged in three rows in the battery control system cavity, the three rows are a first row close to the diaphragm plate, a second row in the middle and a third row close to the side plate of the battery frame, and the first cell acquisition module 112, the second cell acquisition module 113 and the third cell acquisition module 114 are arranged in the first row; the battery control module 111, the fourth cell acquisition module 115, and the fifth cell acquisition module 116 are arranged in the second row, and the power distribution module 117 is arranged in the third row.
The lower surfaces of the first, second and third cell collection modules 112, 113 and 114 are higher than the upper surfaces of the battery control module 111, the fourth and fifth cell collection modules 115 and 116. The first battery cell acquisition module and the battery control module are partially overlapped in the up-down direction, the second battery cell acquisition module and the fourth battery cell acquisition module are partially overlapped in the up-down direction, and the third battery cell acquisition module and the fifth battery cell acquisition module are partially overlapped in the up-down direction. The above-mentioned overlapping refers to overlapping in the perpendicular projection without touching.
The modules are fixedly installed through the installing support. The first battery cell acquisition module, the second battery cell acquisition module, the third battery cell acquisition module and the fourth battery cell acquisition module are respectively connected with one battery module through wires, the fifth battery cell acquisition module is connected with two battery module through wires, and the battery modules in the sixth battery module cavity are included in the two battery modules.
The battery cooling water pipe passes through the battery control system cavity between the longitudinal partition board of the battery frame and the battery control module, and the purpose of cooling or warming the battery control system cavity is achieved.
The foregoing is merely an embodiment of the present application, and is not intended to limit the present application, but the present application is disclosed in the preferred embodiment, however, it is not intended to limit the present application, and any person skilled in the art may make some changes or modifications using the disclosed technical content and equivalents to the equivalent embodiments without departing from the scope of the technical solution of the present application.
Claims (8)
1. The commercial vehicle battery is characterized by comprising a battery frame, six battery cell groups arranged in the battery frame, a cooling plate and a battery control system;
the six battery cell groups are respectively a first battery cell group, a second battery cell group, a third battery cell group, a fourth battery cell group, a fifth battery cell group and a sixth battery cell group; the first battery cell group to the fifth battery cell group have the same structure and are composed of two identical battery modules, and the sixth battery cell group is composed of a group of battery modules;
the cooling plate is attached to the lower part of the battery cell group, a cooling water channel is arranged in the cooling plate, and a water inlet and a water outlet which are communicated with external cooling water are arranged on the cooling plate; a PTC heating circuit is attached below the cooling plate; the cooling water channels in the cooling plate are of parallel serpentine pipe structures, the distances between two adjacent parallel cooling water channels are not completely equal, and the PTC heating circuit is arranged on the lower surface of the cooling plate between the parallel cooling water channels;
the battery control system is arranged in the battery frame and is connected with the battery cell group through a lead;
the battery frame comprises a lower bottom plate, a shell and an upper cover plate; the lower bottom plate, the shell and the upper cover plate are connected through bolts; the shell is divided into two parts by a longitudinal partition plate, namely a first shell and a second shell, and three battery cell accommodating cavities with the same specification are separated in the first shell through two transverse partition plates; the second shell is internally divided into three battery core accommodating cavities and a battery control system accommodating cavity by three transverse partition boards, wherein the specifications of the two battery core accommodating cavities are the same as those of the three battery core accommodating cavities of the first shell, and the specifications of the other battery core accommodating cavity are the same as those of the battery control system accommodating cavity;
each group of battery modules is provided with a circuit board, the electrode of each battery cell is connected with a battery cell wire, a voltage sensor connected with the battery cell wire is arranged on the circuit board, and a temperature sensor is arranged on the circuit board and is in contact with the battery cell; there is no one-to-one correspondence between all the cells of each group of battery modules and the temperature sensor.
2. The commercial vehicle battery of claim 1, wherein the battery control system comprises a battery control module, five cell collection modules and a power distribution module, wherein one cell collection module is respectively connected with two cell groups by wires, and wherein one cell group is a sixth cell group.
3. The commercial vehicle battery of claim 1, wherein the cooling plate comprises two separate regions, a first cooling region and a second cooling region, respectively, wherein the first cooling region corresponds to the first housing and the second cooling region corresponds to the second housing.
4. The commercial vehicle battery according to claim 3, wherein the cooling plate comprises an upper plate and a lower plate, a cooling water groove recessed downward is provided on the lower plate, and the cooling water groove forms a cooling water channel with a lower surface of the upper plate; the cooling water channel is integrally arranged in a serpentine manner and comprises a plurality of straight cooling water channels and curved cooling water channels connected with two adjacent straight cooling water channels.
5. The commercial vehicle battery of claim 4, wherein an inwardly extending protrusion is provided in at least one of the straight cooling water passages.
6. The commercial vehicle battery according to claim 4, wherein a cooling water channel-free region is formed between the first cooling region and the second cooling region, and a PTC heating line perpendicular to the direct cooling water channel is provided in the region.
7. The commercial vehicle battery of claim 1, wherein the power of each PTC heating line is not exactly the same.
8. The commercial vehicle battery of claim 1, wherein the modules of the battery control system are arranged in three rows parallel with the transverse separator plates in the battery control system receiving chamber, wherein the battery control modules are disposed in a middle row, and wherein a cooling water pipe connected to the cooling plate passes through the battery control system receiving chamber between the longitudinal separator plates and the battery control modules.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311598538.2A CN117317448B (en) | 2023-11-28 | 2023-11-28 | Commercial car battery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311598538.2A CN117317448B (en) | 2023-11-28 | 2023-11-28 | Commercial car battery |
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| CN117317448A CN117317448A (en) | 2023-12-29 |
| CN117317448B true CN117317448B (en) | 2024-03-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311598538.2A Active CN117317448B (en) | 2023-11-28 | 2023-11-28 | Commercial car battery |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140145250A (en) * | 2013-06-12 | 2014-12-23 | 엘지전자 주식회사 | Battery cooling system of an Electric Vehicle |
| CN111834700A (en) * | 2020-07-21 | 2020-10-27 | 山东大学 | Thermal management and pressure management system for power battery of electric automobile |
| CN212907846U (en) * | 2020-07-02 | 2021-04-06 | 银隆新能源股份有限公司 | Liquid cooling plate and battery module with same |
| CN218783111U (en) * | 2022-12-08 | 2023-03-31 | 远景动力技术(江苏)有限公司 | Battery module |
| KR20230057047A (en) * | 2021-10-21 | 2023-04-28 | 주식회사 성우하이텍 | Battery module structure for electric vehicle |
-
2023
- 2023-11-28 CN CN202311598538.2A patent/CN117317448B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140145250A (en) * | 2013-06-12 | 2014-12-23 | 엘지전자 주식회사 | Battery cooling system of an Electric Vehicle |
| CN212907846U (en) * | 2020-07-02 | 2021-04-06 | 银隆新能源股份有限公司 | Liquid cooling plate and battery module with same |
| CN111834700A (en) * | 2020-07-21 | 2020-10-27 | 山东大学 | Thermal management and pressure management system for power battery of electric automobile |
| KR20230057047A (en) * | 2021-10-21 | 2023-04-28 | 주식회사 성우하이텍 | Battery module structure for electric vehicle |
| CN218783111U (en) * | 2022-12-08 | 2023-03-31 | 远景动力技术(江苏)有限公司 | Battery module |
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| CN117317448A (en) | 2023-12-29 |
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