CN108172928B - Battery pack heat radiation structure - Google Patents
Battery pack heat radiation structure Download PDFInfo
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- CN108172928B CN108172928B CN201711278534.0A CN201711278534A CN108172928B CN 108172928 B CN108172928 B CN 108172928B CN 201711278534 A CN201711278534 A CN 201711278534A CN 108172928 B CN108172928 B CN 108172928B
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- 230000005855 radiation Effects 0.000 title claims description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 230000017525 heat dissipation Effects 0.000 claims abstract description 31
- 229910052782 aluminium Inorganic materials 0.000 claims description 39
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 39
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 17
- 239000000741 silica gel Substances 0.000 claims description 17
- 229910002027 silica gel Inorganic materials 0.000 claims description 17
- 238000009434 installation Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000004080 punching Methods 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- 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
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a battery pack heat dissipation structure which comprises a base, a battery core module, a fixing assembly and a data acquisition and wireless transmission module, wherein the fixing assembly is of a frame structure and is arranged on the base; the cell module is fixed in the fixed assembly and forms a first heat dissipation path together with the fixed assembly and the base; the data acquisition and wireless transmission module is arranged on the outer wall of the fixed assembly and forms a second heat dissipation path together with the fixed assembly and the base. The battery pack heat dissipation structure provided by the invention has the advantages of novel structure, easiness in realization, ingenious design, excellent heat conduction capability and high reliability, and the heat emitted by the battery cell module and the data acquisition and wireless transmission module can be stably transferred to the base for centralized rapid cooling, so that the battery cell module and the data acquisition and wireless transmission module are effectively prevented from being overheated.
Description
Technical Field
The invention belongs to the technical field of power batteries of new energy automobiles, and particularly relates to a battery pack heat dissipation structure.
Background
The existing pure electric vehicle is generally time-consuming for more than one hour after full charge, and the problem of low charging efficiency cannot be solved at late time, so that a plurality of inconveniences are brought to a driver, and the problem becomes a key factor for restricting popularization and use of the pure electric vehicle.
Therefore, a quick-change battery pack of the power battery type pure electric vehicle is provided, and the quick-change battery pack can be independently replaced by a driver within a few minutes, which is approximately equal to or even better than one-time refueling time of a traditional fuel vehicle. In order to improve the use convenience of the electric automobile, not only can quick-change battery pack replacement stations be arranged in various places, but also a standby quick-change battery pack can be placed on the automobile so as to meet the needs at any time. Because battery cell module, data acquisition and wireless transmission module and automatically controlled module in the quick change battery package all can send the heat in the use, especially the calorific capacity of battery cell module is bigger, but quick change battery package compact structure, small in size lead to the heat dissipation space limited, need derive heat and concentrate the cooling, consequently, need the design of a set of outstanding battery package heat radiation structure of heat conductivity urgently.
Disclosure of Invention
In order to solve the technical problems, the invention provides the heat dissipation structure of the battery pack, which has excellent heat conduction capability, is stable and reliable, and can intensively lead out heat to the base so as to intensively and rapidly cool.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a battery pack heat radiation structure is characterized in that: the device comprises a base, a battery cell module, a fixing assembly and a data acquisition and wireless transmission module, wherein the fixing assembly is of a frame structure and is arranged on the base; the cell module is fixed in the fixed assembly and forms a first heat dissipation path together with the fixed assembly and the base; the data acquisition and wireless transmission module is arranged on the outer wall of the fixed assembly and forms a second heat dissipation path together with the fixed assembly and the base.
By adopting the structure, the heat emitted by the battery cell module can be transferred to the base through the first heat dissipation path and the heat emitted by the data acquisition and wireless transmission module can be transferred to the base through the second heat dissipation path through the fixed assembly, the structure is simple, the heat conduction capacity is excellent, the reliability is high, the heat emitted by the battery cell module and the heat emitted by the data acquisition and wireless transmission module can be stably transferred to the base for concentrated rapid cooling, and the battery cell module and the data acquisition and wireless transmission module are effectively prevented from being overheated.
As preferable: the base is covered with a box assembly, the box assembly and the base form a containing cavity, and the battery cell module, the fixing assembly and the data acquisition and wireless transmission module are all positioned in the containing cavity; one side outer wall of the box assembly is provided with an electric control box which is integrally formed with the box assembly, an electric control module is arranged in the electric control box, and a balance valve is arranged on one side wall of the electric control box. By adopting the structure, the box assembly can effectively protect and seal the battery cell module, the fixing assembly and the data acquisition and wireless transmission module, and prevent the quick-change battery pack from entering water and dust, meanwhile, the electric control module is arranged in the electric cabinet on the box assembly, and because the electric control module generates less heat relative to the battery cell module, when the heat in the electric cabinet is gathered, the air pressure in the electric cabinet is higher than the outside, and the balance valve is opened, so that the effective heat dissipation can be realized by balancing the air pressure inside and outside, and the electric cabinet has simple design structure, easy realization and low cost.
As preferable: the fixed subassembly includes the fixed underframe of module and the fixed roof of module, wherein, the fixed roof lid of module closes on the fixed underframe of module to form cuboid frame construction with the fixed underframe of module is encircled, the electricity mandrel group is fixed in this frame construction, data acquisition and wireless transmission module install on the fixed roof of module. By adopting the structure, the fixing component can rapidly and effectively lead out the heat emitted by the cell module and the data acquisition and wireless transmission module, and can reliably fix the cell module and the data acquisition and wireless transmission module.
As preferable: the module fixing bottom frame comprises a rectangular bottom plate part, two long side plate parts and two short side plate parts, wherein the two long side plate parts and the two short side plate parts are respectively arranged in a pairwise manner and extend upwards from the outer edge of the bottom plate part respectively, the height of the long side plate part is higher than that of the short side plate part, and the upper edge of the long side plate part is bent inwards and then bent upwards to form a limit connecting part; the module fixing top plate and the two side edges corresponding to the two long side plate parts are bent upwards to form an installation connecting part, the installation connecting part is fixedly connected with the corresponding limit connecting part, and the two side edges corresponding to the module fixing top plate and the two short side plate parts are bent downwards to form a battery cell limiting part. By adopting the structure, the battery cell module can be reliably limited, so that the battery cell module is suitable for severe working conditions, and the battery cell module is protected while the heat emitted by the battery cell module is effectively led out.
As preferable: the base is of a box-shaped structure with an opening at the upper part, and the lower part of the module fixing bottom frame is embedded into the base. By adopting the structure, the base can effectively fix and support the die set fixed bottom frame.
As preferable: the battery cell module consists of battery cell units connected side by side, each battery cell unit consists of a heat conducting aluminum plate and two battery cells, the two battery cells are respectively positioned on two side walls of the heat conducting aluminum plate, the outer edges of the upper side and the lower side of the heat conducting aluminum plate are bent to form lap joint parts, the two lap joint parts are respectively overlapped on the corresponding lap joint parts of the adjacent heat conducting aluminum plates, and the inner walls of the assemblies are fixed and attached; the first heat dissipation path is composed of a battery cell, a heat conduction aluminum plate, a fixing assembly and a base in sequence, and heat emitted by the battery cell is transmitted to the base through the heat conduction aluminum plate and the fixing assembly in sequence. By adopting the structure, each heat conducting aluminum plate can simultaneously conduct out the heat emitted by two electric cores, so that the electric core temperature in the battery pack is prevented from being too high, moreover, the lap joint part of the heat conducting aluminum plate of one electric core unit can be lapped on the lap joint part of the heat conducting aluminum plate of the adjacent electric core unit, the whole heat conduction is realized, the heat conduction efficiency is improved, and certain electric core units in the battery pack can be prevented from being too high due to unsmooth heat conduction.
As preferable: the battery cell comprises a battery mounting plate and two batteries respectively positioned on two side walls of the battery mounting plate, wherein one battery is far away from one side surface of the battery mounting plate and is attached to one side wall of the heat conducting aluminum plate, the outer edges of the upper side and the lower side of the battery mounting plate are bent to form heat conducting parts, and the heat conducting parts are attached to corresponding overlapping parts respectively. By adopting the structure, the heat of the two batteries can be effectively transferred to the heat conducting aluminum plate through the heat conducting part of the battery mounting plate, and the structure is simple and reliable, and the design is reasonable.
As preferable: and a silica gel heat conduction rubber pad is arranged between the heat conduction aluminum plate and the base. By adopting the structure, the heat conduction efficiency between the heat conduction aluminum plate and the base can be effectively improved.
As preferable: the data acquisition and wireless transmission module comprises a protection shell and an integrated circuit board, wherein the protection shell is arranged on the outer wall of the fixed assembly, and the integrated circuit board is arranged in the protection shell; the second heat dissipation path is composed of an integrated circuit board, a protection shell, a fixing component and a base, and heat emitted by the integrated circuit board is transmitted to the base through the protection shell and the fixing component in sequence. By adopting the structure, the heat emitted by the data acquisition and wireless transmission module can be effectively led out and transferred to the base, the data acquisition and wireless transmission module is prevented from overheating, the structure is compact, and the limited space inside the battery pack is reasonably utilized.
As preferable: the bottom of the protection shell is provided with at least one heat-conducting silica gel mounting opening, heat-conducting silica gel sheets are arranged in each heat-conducting silica gel mounting opening, and the surfaces of the two sides of each heat-conducting silica gel sheet are respectively attached to the fixing assembly and the integrated circuit board. By adopting the structure, the heat conduction silica gel sheet more efficiently guides out the heat of the integrated circuit board to the fixed component, and the integrated circuit board is prevented from overheating.
Compared with the prior art, the invention has the beneficial effects that:
the battery pack heat dissipation structure provided by the invention has the advantages of novel structure, easiness in realization, ingenious design, excellent heat conduction capability and high reliability, and the heat emitted by the battery cell module and the data acquisition and wireless transmission module can be stably transferred to the base for centralized rapid cooling, so that the battery cell module and the data acquisition and wireless transmission module are effectively prevented from being overheated.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the connection between the tank assembly and the base;
FIG. 3 is a schematic view of the removal module set top plate and data acquisition and wireless transmission module of FIG. 1;
fig. 4 is a schematic diagram of the internal structure of the cell unit;
fig. 5 is a schematic structural view of a heat conductive aluminum plate;
fig. 6 is a schematic structural diagram of a cell;
FIG. 7 is a schematic structural view of a fixing assembly;
FIG. 8 is a schematic diagram of the connection relationship between a module fixed top plate and a data acquisition and wireless transmission module;
fig. 9 is a schematic view of the location of the thermally conductive silicone mounting port.
Detailed Description
The invention is further described below with reference to examples and figures.
As shown in fig. 1 and 2, a battery pack heat dissipation structure comprises a base 1, a box assembly 2, a battery cell module 3, a fixing component 4 and a data acquisition and wireless transmission module 5. The box assembly 2 and the base 1 are surrounded to form a containing cavity, the battery cell module 3, the fixing component 4 and the data acquisition and wireless transmission module 5 are all located in the containing cavity, and the fixing component 4 is of a frame structure and is installed on the base 1.
Heat dissipation one: one side outer wall of the box assembly 2 is provided with an electric control box 21 integrally formed with the electric control box, an electric control module is arranged on the electric control box 21, and a balance valve 6 for radiating heat of the electric control module is arranged on one side wall of the electric control box 21. When the electronic control module detects that the temperature of the electric cabinet 21 is high, the balance valve 6 is opened to release heat.
And (2) heat dissipation: the cell module 3 is fixed in the fixed component 4 and forms a first heat dissipation path together with the fixed component 4 and the base 1.
And (3) heat dissipation: the data acquisition and wireless transmission module 5 is arranged on the outer wall of the fixed assembly 4 and forms a second heat dissipation path together with the fixed assembly 4 and the base 1.
Referring to fig. 1 and 3, the base 1 is made of metal, preferably aluminum alloy, and has good heat conducting capability, light weight and high structural strength, and is beneficial to heat dissipation. The base 1 has a box-like structure with an upper opening so as to fix the fixing assembly 4.
Referring to fig. 1, 3 and 4, the fixing assembly 4 includes a module fixing base frame 41 and a module fixing top plate 42. Wherein, the lower part of the module fixing bottom frame 41 is embedded into the base 1. The module fixing top plate 42 is covered on the module fixing bottom frame 41 and forms a cuboid frame structure with the module fixing bottom frame 41, the cell module 3 is fixed in the frame structure, and the data acquisition and wireless transmission module 5 is mounted on the module fixing top plate 42.
Specifically, the module fixing bottom frame 41 includes a rectangular bottom plate portion 411, two long side plate portions 412 and two short side plate portions 413, where two long side plate portions 412 and two short side plate portions 413 are disposed in pairs, and extend upward from the outer edges of the bottom plate portion 411, the long side plate portions 412 are higher than the short side plate portions 413, the upper edges of the long side plate portions 412 are bent inward and then bent upward to form limit connection portions 412a, the two side edges of the module fixing top plate 42 corresponding to the two long side plate portions 412 are bent upward to form mounting connection portions 421, the mounting connection portions 421 are fixedly connected to the corresponding limit connection portions 412a by screws, and the two side edges of the module fixing top plate 42 corresponding to the two short side plate portions 413 are bent downward to form cell defining portions 422, so as to reliably fix the cell module 3.
The upper edges of the two short side plate parts 413 are turned outwards to form a base connecting part 413a overlapped on the upper edge of the base 1, and the lower parts of the two long side plate parts 412 are respectively punched and formed with a plurality of base overlapping parts 412b overlapped on the upper edge of the base 1 through a punching process. The base overlap portion 412b and the base connecting portion 413a are respectively provided with at least one screw mounting notch, and the screw mounting notch corresponds to the threaded connection hole of the base 1, so that the base 1 is fixedly connected with the base overlap portion 412b and the base connecting portion 413a through screws.
Referring to fig. 1, 3-6, the battery cell module 3 is composed of battery cell units 31 connected side by side, the battery cell units 31 are composed of a heat conducting aluminum plate 311 and two battery cells 312, the two battery cells 312 are respectively located on two side walls of the heat conducting aluminum plate 311, the outer edges of the upper side and the lower side of the heat conducting aluminum plate 311 are bent to form overlapping parts 311a, the two overlapping parts 311a are respectively overlapped on the corresponding overlapping parts 311a of the adjacent heat conducting aluminum plates 311, and the inner walls of the fixing assemblies 4 are uniformly attached, namely the overlapping part 311a located at the upper part is attached to the module fixing top plate 42, the overlapping part 311a located at the lower part is attached to the module fixing bottom frame 41, and a silica gel heat conducting rubber pad is arranged between the overlapping part 311a at the lower part and the module fixing bottom frame 41 so as to improve heat conducting efficiency.
Further, a portion of the overlap portion 311a is recessed inward to form a step 311a1. The front end of the overlap joint portion 311a of the heat conduction aluminum plate 311 can overlap joint the step 311a1 of the adjacent heat conduction aluminum plates 311, so that a plurality of heat conduction aluminum plates 311 jointly form a stable and reliable integral structure, integral heat conduction is realized, and heat conduction efficiency is improved.
The battery core 312 includes a battery mounting plate 312a and two batteries 312b respectively located on two sidewalls of the battery mounting plate 312a, wherein one side surface of the battery 312b away from the battery mounting plate 312a is attached to one sidewall of the heat conducting aluminum plate 311, the outer edges of the upper and lower sides of the battery mounting plate 312a are bent to form heat conducting portions 312a1, and the heat conducting portions 312a1 are attached to corresponding overlapping portions 311a respectively.
The first heat dissipation path is composed of a battery cell 312, a heat conducting aluminum plate 311, a fixing component 4 and a base 1 in sequence, and the heat emitted by the battery 312b has two heat transfer paths: 1. the heat emitted by the battery 312b attached to the heat conducting aluminum plate 311 is sequentially transferred to the module fixing bottom frame 41 or the module fixing top plate 42 of the fixing assembly 4 through the battery mounting plate 312a and the heat conducting aluminum plate 311, wherein the heat transferred to the module fixing top plate 42 is transferred to the base through the module fixing bottom frame 41, and the heat transferred to the module fixing bottom frame 41 is directly transferred to the base 1; 2. the heat generated by the battery 312b attached to the heat conductive aluminum plate 311 can be transferred not only along the above-described path but also directly to the heat conductive aluminum plate 311 by bypassing the battery mounting plate 312 a.
Referring to fig. 1, 8 and 9, the data acquisition and wireless transmission module 5 includes a protection housing 51 and an integrated circuit board 52, wherein the protection housing 51 includes a housing base 511 and a housing cover 512, the housing base 511 is mounted on a module fixing top plate 42 of the fixing assembly 4, the housing cover 512 is covered on the housing base 511, and the integrated circuit board 52 is mounted in a space formed by surrounding the housing base 511 and the housing cover 512.
The shell base 511 is provided with at least one heat-conducting silica gel mounting opening 511a, heat-conducting silica gel sheets 53 are arranged in each heat-conducting silica gel mounting opening 511a, and two side surfaces of each heat-conducting silica gel sheet c53 are respectively attached to the module fixing top plate 42 and the integrated circuit board 52 of the fixing assembly 4 so as to effectively transfer heat.
The second heat dissipation path is formed by the integrated circuit board 52, the protection shell 51, the fixing component 4 and the base 1 in sequence, and two heat transmission paths of the heat emitted by the integrated circuit board 52 are provided: 1. part of the heat emitted by the integrated circuit board 52 is transferred to the module fixing top plate 42 through the shell base 511, then transferred to the module fixing bottom frame 41 through the module fixing top plate 42, and finally transferred to the base 1 through the module fixing bottom frame 41; 2. part of the heat emitted by the integrated circuit board 52 is transferred to the module fixing top plate 42 through the heat conducting silicon sheet 53, then transferred to the module fixing bottom frame 41 through the module fixing top plate 42, and finally transferred to the base 1 through the module fixing bottom frame 41. Since the heat transfer efficiency of the thermally conductive silicone sheet 53 is higher than that of the case base 511, most of the heat emitted from the integrated circuit board 52 is conducted out of the thermally conductive silicone sheet 53.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and that many similar changes can be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (1)
1. The utility model provides a battery package heat radiation structure which characterized in that: the battery cell module, the fixing assembly and the data acquisition and wireless transmission module are all positioned in the accommodating cavity, and the fixing assembly is of a frame structure and is arranged on the base;
heat dissipation one: an electric control box integrally formed with the electric control box is arranged on one side outer wall of the box assembly, an electric control module is arranged on the electric control box, a balance valve for radiating the electric control module is arranged on one side wall of the electric control box, and when the electric control module detects that the temperature of the electric control box is higher, the balance valve is opened to release heat;
and (2) heat dissipation: the cell module is fixed in the fixed assembly and forms a first heat dissipation path together with the fixed assembly and the base;
and (3) heat dissipation: the data acquisition and wireless transmission module is arranged on the outer wall of the fixed assembly and forms a second heat dissipation path together with the fixed assembly and the base;
the base is made of aluminum alloy and is of a box-shaped structure with an opening at the upper part;
the fixed assembly comprises a module fixed bottom frame and a module fixed top plate, the lower part of the module fixed bottom frame is embedded into the base, the module fixed top plate is covered on the module fixed bottom frame and surrounds the module fixed bottom frame to form a cuboid frame structure, the battery cell module is fixed in the frame structure, and the data acquisition and wireless transmission module is arranged on the module fixed top plate;
the module fixing bottom frame comprises a rectangular bottom plate part, two long side plate parts and two short side plate parts, wherein the two long side plate parts and the two short side plate parts are respectively arranged in a pairwise manner and respectively extend upwards from the outer edges of the bottom plate part, the height of the long side plate part is higher than that of the short side plate part, the upper edge of the long side plate part is inwards bent and then upwards bent to form a limit connecting part, the two side outer edges of the module fixing top plate corresponding to the two long side plate parts are upwards bent to form an installation connecting part, the installation connecting part is fixedly connected with the corresponding limit connecting part through screws, and the two side outer edges of the module fixing top plate corresponding to the two short side plate parts are downwards bent to form a cell limiting part;
the upper edges of the two short side plate parts are outwards folded to form base connecting parts which are overlapped on the upper edges of the bases, the lower parts of the two long side plate parts are respectively punched and formed with a plurality of base overlapping parts which are overlapped on the upper edges of the bases through a punching process, and the base overlapping parts and the base connecting parts are respectively provided with at least one screw mounting notch which corresponds to the threaded connecting holes of the bases;
the battery cell module consists of battery cell units connected side by side, each battery cell unit consists of a heat conducting aluminum plate and two battery cells, the two battery cells are respectively positioned on two side walls of the heat conducting aluminum plate, the outer edges of the upper side and the lower side of the heat conducting aluminum plate are bent to form lap joint parts, the two lap joint parts are respectively overlapped on the corresponding lap joint parts of the adjacent heat conducting aluminum plates, the lap joint parts positioned at the upper part are attached to a module fixing top plate, the lap joint parts positioned at the lower part are attached to a module fixing bottom frame, and a silica gel heat conducting rubber pad is arranged between the lap joint parts positioned at the lower part and the module fixing bottom frame;
the part of the lap joint part is inwards recessed to form a step, and the front end of the lap joint part of the heat conducting aluminum plate can be lapped on the step of the adjacent heat conducting aluminum plate;
the battery cell comprises a battery mounting plate and two batteries respectively positioned on two side walls of the battery mounting plate, wherein one side surface of the battery, which is far away from the battery mounting plate, is attached to one side wall of the heat conducting aluminum plate, the outer edges of the upper side and the lower side of the battery mounting plate are bent to form heat conducting parts, and the heat conducting parts are attached to corresponding overlapping parts respectively;
the first heat dissipation path comprises electric core, heat conduction aluminum plate, fixed subassembly and base in proper order, and the heat that the battery sent has two heat transfer paths: 1. the heat emitted by the battery attached to the heat conducting aluminum plate is transmitted to a module fixing bottom frame or a module fixing top plate of the fixing assembly through the battery mounting plate and the heat conducting aluminum plate in sequence, wherein the heat transmitted to the module fixing top plate is transmitted to the base through the module fixing bottom frame, and the heat transmitted to the module fixing bottom frame is directly transmitted to the base; 2. the heat emitted by the battery attached to the heat-conducting aluminum plate can be transferred along the path, and can skip over the battery mounting plate and be directly transferred to the heat-conducting aluminum plate;
the data acquisition and wireless transmission module comprises a protection shell and an integrated circuit board, wherein the protection shell comprises a shell base and a shell cover, the shell base is arranged on a module fixing top plate of the fixing assembly, the shell cover is covered on the shell base, and the integrated circuit board is arranged in a space formed by the shell base and the shell cover in a surrounding mode;
the shell base is provided with at least one heat-conducting silica gel mounting opening, heat-conducting silica gel sheets are arranged in each heat-conducting silica gel mounting opening, and the surfaces of the two sides of each heat-conducting silica gel sheet are respectively attached to a module fixing top plate and an integrated circuit board of the fixing assembly;
the second heat dissipation path comprises integrated circuit board, protective housing, fixed subassembly and base in proper order, the transfer path of the heat that the integrated circuit board sent has two: 1. part of heat emitted by the integrated circuit board is transferred to the module fixing top plate through the shell base, then transferred to the module fixing bottom frame through the module fixing top plate, and finally transferred to the base through the module fixing bottom frame; 2. part of heat emitted by the integrated circuit board is transferred to the module fixing top plate through the heat-conducting silica gel sheet, then transferred to the module fixing bottom frame through the module fixing top plate, and finally transferred to the base through the module fixing bottom frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278534.0A CN108172928B (en) | 2017-12-06 | 2017-12-06 | Battery pack heat radiation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278534.0A CN108172928B (en) | 2017-12-06 | 2017-12-06 | Battery pack heat radiation structure |
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| Publication Number | Publication Date |
|---|---|
| CN108172928A CN108172928A (en) | 2018-06-15 |
| CN108172928B true CN108172928B (en) | 2023-11-07 |
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| CN201711278534.0A Active CN108172928B (en) | 2017-12-06 | 2017-12-06 | Battery pack heat radiation structure |
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| CN (1) | CN108172928B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111987262B (en) * | 2020-08-31 | 2022-07-08 | 湖州快驴科技有限公司 | Soft-packaged battery cell module of spot welding process |
| CN115224428A (en) * | 2021-04-15 | 2022-10-21 | 南京泉峰科技有限公司 | Battery pack and electric tool |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170933A (en) * | 2017-06-19 | 2017-09-15 | 江苏英耐杰新能源有限公司 | A kind of in groups module of rectangular cell |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011154986A (en) * | 2010-01-28 | 2011-08-11 | Sanyo Electric Co Ltd | Battery pack |
| KR101447057B1 (en) * | 2012-01-26 | 2014-10-07 | 주식회사 엘지화학 | Battery Module Having Heat Dissipation Mounting Member for Dissipating Heat And Mounting Battery cell |
| WO2013168856A1 (en) * | 2012-05-08 | 2013-11-14 | 주식회사 엘지화학 | Battery module including high-efficiency cooling structure |
-
2017
- 2017-12-06 CN CN201711278534.0A patent/CN108172928B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170933A (en) * | 2017-06-19 | 2017-09-15 | 江苏英耐杰新能源有限公司 | A kind of in groups module of rectangular cell |
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| CN108172928A (en) | 2018-06-15 |
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