CN108172702B - New energy automobile grafting stack dress battery - Google Patents
New energy automobile grafting stack dress battery Download PDFInfo
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- CN108172702B CN108172702B CN201711474842.0A CN201711474842A CN108172702B CN 108172702 B CN108172702 B CN 108172702B CN 201711474842 A CN201711474842 A CN 201711474842A CN 108172702 B CN108172702 B CN 108172702B
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- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 32
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims description 31
- 238000001514 detection method Methods 0.000 claims description 12
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 10
- 229910052802 copper Inorganic materials 0.000 claims description 10
- 239000010949 copper Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 230000005389 magnetism Effects 0.000 claims 4
- 238000013461 design Methods 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 4
- 238000003860 storage Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000003014 reinforcing effect Effects 0.000 description 7
- 230000008093 supporting effect Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000010415 tidying Methods 0.000 description 1
Classifications
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
-
- 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
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-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
-
- 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)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a new energy automobile plug-in stacked battery, which comprises an external protection assembly, wherein a battery cell module and a fixed sleeve of the battery cell module are arranged in the external protection assembly, the battery cell module is formed by stacking at least two battery cell units with the same structure, and the battery cell module is inserted in the fixed sleeve; the fixing sleeve is of an opening structure with surrounding upper, lower, left and right walls and front and rear, wherein the upper end face of the upper wall of the fixing sleeve is provided with a PCB electric control board, and an electric control circuit is arranged on the PCB electric control board; the battery cell unit is three layers, the middle of the battery cell unit is a heat dissipation aluminum plate, the two sides of the heat dissipation aluminum plate are respectively provided with battery cells with the same structure, and all the battery cells are connected with the electric control circuit after being connected in series and parallel. The beneficial effects are that: the portable intelligent power supply device is ingenious in design, extremely high in integration level, compact in structure, small in size, high in power storage capacity, high in safety coefficient, long in service life, extremely good in portability and extremely high in market application value.
Description
Technical Field
The invention relates to the technical field of power batteries of new energy automobiles, in particular to a spliced and stacked battery of a new energy automobile.
Background
New energy automobiles, particularly pure electric automobiles, become hot spots for development of automobile industry, and the existing pure electric automobiles all adopt power batteries as power sources. The existing pure electric vehicles are mainly divided into plug-in type and quick-change type based on the difference of charging modes. The number of the power batteries of the plug-in type pure electric vehicle is limited, so that the driving range of the pure electric vehicle is limited, and when the pure electric vehicle needs to drive a long range, the pure electric vehicle must be charged for many times along the way. However, the conventional plug-in type pure electric vehicle is generally charged for more than one hour at a time, so that the problem of low charging efficiency cannot be solved at a later time, and a plurality of inconveniences are brought to a driver, so that the problem becomes a key factor for restricting the popularization and the 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 convenience of use of such an electric vehicle, not only quick-change battery pack replacement stations need to be provided in various places, but also a stand-by quick-change battery pack needs to be placed on the vehicle to cope with the need from time to time at any time.
Therefore, in order to facilitate storage of the quick-change battery pack on the pure electric vehicle or to meet the requirements of vehicle space design and arrangement, it is highly desirable to design a quick-change battery pack with small volume, reliable structure and high safety coefficient.
Disclosure of Invention
In order to solve the problems, the invention provides the new energy automobile plug-in stacked battery which is extremely high in integration level, compact in structure, small in size, capable of monitoring working states in real time and extremely high in safety coefficient.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
a new energy automobile grafting stack battery, its key lies in: the battery cell module comprises an external protection assembly, wherein a battery cell module and a fixed sleeve of the battery cell module are arranged in the external protection assembly, the battery cell module is formed by stacking at least two battery cell units with the same structure, and the battery cell module is inserted into the fixed sleeve; the fixing sleeve is of an opening structure with surrounding upper, lower, left and right walls and front and rear, wherein the upper end face of the upper wall of the fixing sleeve is provided with a PCB electric control board, and an electric control circuit is arranged on the PCB electric control board; the battery cell unit is three layers, the middle of the battery cell unit is a heat dissipation aluminum plate, the two sides of the heat dissipation aluminum plate are respectively provided with battery cells with the same structure, and all the battery cells are connected with the electric control circuit after being connected in series and parallel.
By adopting the scheme, the battery is small in size and is of an integrated structure, and firstly, the external protection assembly can play a role in sealing and protecting the internal battery cell module, so that the use safety is improved. The cell module realizes power supply. And the PCB electric control board realizes charging control. The battery is high in tightness between the inside and the outside, is suitable for frequent replacement, disassembly and assembly and movement, and effectively avoids damage caused by frequent movement.
Further, one side surface of the external protection component is provided with an electric cabinet which is integrally formed with the external protection component, and the electric cabinet is internally divided into a battery pack connecting wire arrangement area, a connection installation area, a high-voltage fusing protection area and a low-voltage arrangement area through a partition plate;
the battery pack connecting wire arrangement area is used for installing a charging socket and arranging battery pack inlet wires;
the connection installation area is used for installing a positive and negative power supply plug pair for connecting the battery with the vehicle body;
the high-voltage fusing protection area is used for arranging a battery pack positive electrode high-voltage element and fusing protection equipment;
the low-voltage arrangement area is used for installing low-voltage elements and arranging low-voltage signal wires and power supply lines.
The electric cabinet controls the battery charging process and the connection condition of the charging power supply, and the fusing protection, the low-voltage high-voltage wiring and the power supply connection control of the power supply are all centralized in the electric cabinet, so that the electric cabinet is small in size and powerful in function. The battery charging control circuit is integrated in the electric cabinet and is divided into four sections which are isolated from each other through the partition plate, the sections are isolated from each other, the mutual influence is avoided, and the whole space occupation is small. The high-voltage fusing protection is realized through the high-voltage protection area; the power supply is connected through the connecting installation area, and intelligent control of the power supply connection is realized; the power lines are reasonably arranged through the battery pack connecting line arrangement area, and the power lines are not mutually influenced; and then the wiring of the weak current circuit is realized through the low-voltage arrangement area, so that the reasonable planning is realized.
Still further described, a charging socket is installed on the side wall of the battery pack connecting wire arrangement area, a connecting wire row of the charging socket penetrates into the battery box, and an anode wire in the connecting wire row is connected with a wire row in the high-voltage fusing protection area; a fuse is arranged in the high-voltage fusing protection area and guides the positive electrode wire to a positive electrode connecting post of the battery box in the connecting installation area; the connection installation area is internally provided with the positive pole connecting post of the battery box, the magnetic protection relay and the negative pole connecting post of the battery box, the magnetic protection relay is connected with the negative pole connecting post of the battery box, the magnetic protection relay is also connected with a negative pole line of the connecting line row, and a coil connecting line of the magnetic protection relay stretches into the low-voltage arrangement area.
The power lines are arranged in a tidying way, and the mutual influence is avoided; and the low-voltage distribution area is used for realizing weak current circuit wiring and reasonable planning. The low-pressure arrangement area is also provided with an electric cabinet pressure detector for detecting air pressure in the electric cabinet, so that the temperature is detected in real time, and when the temperature is increased or reduced, the internal air pressure is regulated.
The connecting wire is connected with the battery voltage detection connector of the PCB and the positive and negative balance detection connector of the battery core through the low-current fuse; the positive electrode connecting column of the battery box is provided with a high-voltage column temperature sensor, the negative electrode connecting column of the battery box is provided with a low-voltage column temperature sensor, signal wires of the high-voltage column temperature sensor and the low-voltage column temperature sensor extend into the low-voltage arrangement area, and the high-voltage column temperature sensor and the low-voltage column temperature sensor are also connected with the PCB electric control board temperature detection plug-in; and a reserved plug-in unit is also arranged on the PCB.
By adopting the scheme, the data acquisition and the charging control are realized by arranging the plug-in on the PCB. And a reserved plug-in is arranged, so that the subsequent battery system is convenient to update and wire, and preparation is made for the subsequent battery upgrade.
Still further describing, the electric core unit also comprises two electric core brackets which are oppositely arranged, the two electric core brackets clamp the heat conduction aluminum plate and the two electric cores, two vertical edges of the heat conduction aluminum plate are respectively and fixedly connected with the corresponding electric core brackets, the outer edges of the upper transverse edge and the lower transverse edge are respectively bent to form heat conduction parts, and the two heat conduction parts are in close contact with the fixed sleeve;
two opposite vertical edges of the battery core are respectively provided with a pole eye, the two pole eyes at one end of the battery core unit are oppositely bent and are mutually overlapped, the two pole eyes at the other end are oppositely bent and are respectively overlapped with the pole eyes of the adjacent battery core units.
The parallel battery cells are connected with each other through the connecting structure, the heat-conducting aluminum plates can simultaneously lead out the heat emitted by the two battery cells, so that the battery cell temperature in the battery pack is prevented from being too high, and the lap joint part of the heat-conducting aluminum plates of one battery cell can be lap-jointed on the lap joint part of the heat-conducting aluminum plates of the adjacent battery cell, so that the overall heat conduction is realized, the heat conduction efficiency is improved, and the battery cells in the battery pack can be prevented from being too high due to unsmooth heat conduction; through the connection mode of the battery cell electrode eyes, two battery cells in the same battery cell unit are connected in series, and each battery cell of the adjacent battery cell unit is connected in series, so that the arrangement of a circuit is simplified.
The battery cell support comprises an anode part and a cathode part, wherein a first connecting part and a first functional part are formed after the middle part of the anode part is bent, a second connecting part and a second functional part are formed after the middle part of the cathode part is bent, one side surfaces of the first connecting part and the second connecting part are combined, and the outer edges of one adjacent side of the first functional part and the second functional part are attached to each other, so that the cross sections of the anode part and the cathode part form a T-shaped structure together;
the two side vertical edges of the heat conduction aluminum plate are respectively fixed between the first connecting part and the second connecting part of the corresponding battery cell bracket, and the connecting structure is positioned on the first functional part and the second functional part.
By adopting the structure, the cross section is of the T-shaped structure, so that the whole structure is more compact, the first connecting part and the second connecting part can reliably fix the heat conducting aluminum plate, and the connecting structure on the first functional part and the second functional part is used for connecting and combining the cell supports of the adjacent cell units.
Still further described, be formed with the collection line fixed knot that converges piece mounting structure and lie in this collection line both ends of converging piece mounting structure on the adjacent first functional part and second functional part it converges and installs the piece to converge on the piece mounting structure, the utmost point eye overlap joint of the electric core that lies in the piece both sides is converging on this piece, utmost point eye passes through collection line and gathers the wireless transmission module on line fixed knot and the PCB automatically controlled board through collection line and links to each other.
By adopting the scheme, the collecting plate can support the electrode eyes, so that all the electric cores are connected in series stably and reliably, the wired connection of the collecting wires is stable and reliable, and the collecting wire fixing structure can reasonably and reliably fix the collecting wires and guide the collecting wires to run.
Still further describing, install total positive copper bar and total negative copper bar respectively on two electric core supports of the outermost of electric core module same side, total positive copper bar and total negative copper bar are all fixed on corresponding electric core support through two at least installation dops to overlap with corresponding utmost point eye, installation dop respectively with corresponding electric core support integrated into one piece.
By adopting the scheme, the total positive copper bars and the total negative copper bars can be reliably fixed on the corresponding cell supports, so that the electric cabinet and the cell module are connected in series and parallel, the structure is compact, and the integration level is high.
Still further described, the outer protective component comprises a cover body made of plastic material, a base made of metal material and a box outer frame made of metal material;
the cover body is covered on the base and surrounds the base to form a cuboid-shaped box dustproof and waterproof structure, the box body outer frame at least covers part of the outer surface of the cover body, and the lower bottom of the box body outer frame is turned inwards and buckled with the lower bottom of the base and fixed through screws.
By adopting the scheme, the cover body is made of plastic materials, the weight of the cover body made of plastic materials is light, the design requirement of light weight is met, the structure is reliable, the processing is easy, the cost is low, the box body outer frame is made of metal materials with high strength and good wear resistance, the cover body can be protected, the wear of the cover body is reduced, the base is matched to reliably protect the battery cell module inside the cover body, and the service life is prolonged. Compact structure, high supporting strength.
Compared with the prior art, the invention has the beneficial effects that: the quick-change battery pack assembly provided by the invention has the advantages of ingenious design, extremely high integration level, compact structure, small volume, strong electricity storage capacity, high safety coefficient, long service life, extremely good portability and extremely high market application value.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 with the external protective component and the electric cabinet removed;
FIG. 3 is a schematic structural view of a retaining sleeve;
FIG. 4 is a schematic diagram of a structure of a cell unit from one view angle;
FIG. 5 is a schematic diagram of a structure of a cell unit from another view angle;
fig. 6 is a schematic diagram of the internal structure of the cell unit;
fig. 7 is a schematic structural view of a heat conductive aluminum plate;
Fig. 8 is a schematic structural diagram of a cell;
fig. 9 is a schematic structural view of a cell holder from one view;
fig. 10 is a schematic view of a cell holder from another perspective;
fig. 11 is a schematic structural view of the positive electrode portion;
fig. 12 is a schematic structural view of a negative electrode portion;
FIG. 13 is a schematic diagram of the connection between the base and the housing;
FIG. 14 is a schematic view of the structure of the cover;
FIG. 15 is a schematic view of the structure of the outer frame of the case;
FIG. 16 is a schematic view of the structure of the base;
FIG. 17 is a schematic diagram of the connection between the base and the O-ring;
fig. 18 is a schematic view of an installation structure of the electric cabinet;
fig. 19 is a schematic diagram of the connection of the electric cabinet circuit to the PCB board.
Detailed Description
The following describes the embodiments and working principles of the present invention with reference to the drawings.
As shown in fig. 1-3, a new energy automobile plug-in stacked battery comprises an external protection component f, wherein a battery cell module 2 and a fixed sleeve b of the battery cell module 2 are arranged in the external protection component f, the battery cell module 2 is formed by stacking at least two battery cell units a with identical structures, and the battery cell module 2 is plugged in the fixed sleeve b; the fixed sleeve b is of an opening structure with surrounding upper, lower, left and right walls and front and rear walls, wherein the upper end face of the upper wall of the fixed sleeve b is provided with a PCB electric control board 4, and an electric control circuit is arranged on the PCB electric control board 4; the battery cell unit a is three layers, the middle of the battery cell unit a is a heat dissipation aluminum plate a2, two sides of the heat dissipation aluminum plate a2 are respectively provided with battery cells a3 with the same structure, and all the battery cells a3 are connected with the electric control circuit after being connected in series and parallel.
In this embodiment, the battery cell a3 is connected to the electronic control circuit after being connected in series.
In this embodiment, the cell module 2 is inserted longitudinally into the stationary sleeve b.
Referring to fig. 4 to 6, the battery cell unit a includes a heat conductive aluminum plate a2, two battery cells a3 and two battery cell supports a1 disposed opposite to each other. The battery cell support a1 is of a strip-shaped structure, and the battery cell support a1 is provided with a connecting structure. The heat conducting aluminum plate a2 is fixed between the two cell supports a1, namely, the outer edges of two sides of the heat conducting aluminum plate a2 are respectively fixed on the corresponding cell supports a1, and the outer edges of the other two sides are respectively bent to form a lap joint part a21. The two electric cores a3 are respectively positioned at two sides of the heat-conducting aluminum plate a2, the outer edges of two sides of the electric cores a3 adjacent to the corresponding electric core supports a1 are respectively provided with a polar eye a33, the two polar eyes a33 respectively positioned at one end of the two electric cores a3 penetrate through one electric core support a1 and then are combined with each other, and the two polar eyes a33 respectively positioned at the other end of the two electric cores a3 penetrate through the other electric core support a1 and then are separated from each other.
Two electrode eyes a33 at one end of two electric cores a3 of the same electric core unit a respectively inwards bend and overlap each other after penetrating through one electric core support a1, and two electrode eyes a33 at the other end respectively outwards bend after penetrating through the other electric core support a1 and overlap corresponding electrode eyes a33 of two adjacent electric core units a respectively, so that the two electric cores a3 in the same electric core unit a are connected in series, and the electric cores a3 of the adjacent electric core units a are connected in series.
Referring to fig. 9 and 10, the battery cell support a1 includes a positive electrode portion a11 and a negative electrode portion a12 that are combined together, and the positive electrode portion a11 and the negative electrode portion a12 are made of plastic materials, so that the battery cell support is stable and reliable in structure, easy to process and form, low in cost and capable of meeting the design requirement of light weight.
Referring to fig. 9 and 10, the positive electrode portion a11 and the negative electrode portion a12 are each of a long strip structure, and the positive electrode portion a11 and the negative electrode portion a12 are preferably fixedly connected by laser welding in this embodiment. The middle part of the positive electrode part a11 is bent to form a first connecting part a111 and a first functional part a112, the middle part of the negative electrode part a12 is bent to form a second connecting part a121 and a second functional part a122, one side surfaces of the first connecting part a111 and the second connecting part a121 are combined, and the outer edges of the adjacent sides of the first functional part a112 and the second functional part a122 are attached, so that the cross sections of the positive electrode part a11 and the negative electrode part a12 jointly form a T-shaped structure. The positive electrode part a11 and the negative electrode part a12 with the T-shaped cross sections are convenient for the installation and the fixation of the battery cell a3 and the connection and the combination between the adjacent battery cell brackets a1, so that the whole structure is more compact.
Referring to fig. 11 and 12, a side surface of the first connecting portion a111, which is close to the second connecting portion a121, has a first weight-reducing groove a111a, and a first reinforcing rib structure a111c is disposed in the first weight-reducing groove a111 a. The second connecting portion a121 has a second weight-reducing groove a121a on a side surface thereof adjacent to the first connecting portion a111, and a second reinforcing rib structure a121c is provided in the second weight-reducing groove a121 a. The above structure makes the first connection portion a111 and the second connection portion a121 satisfy the requirement of lightweight design, and at the same time, the structural strength is high. In addition, n cylindrical sinking grooves a111b are arranged in the first weight-reducing groove a111a, n cylindrical protruding columns a121b which are matched with the sinking grooves a111b are arranged in the second weight-reducing groove a121a, wherein n is a positive integer, when the first connecting part a111 and the second connecting part a121 are combined, each protruding column a121b is embedded into the corresponding sinking groove a111b, the side edge of the heat conducting aluminum plate a2, which is respectively combined with the corresponding first connecting part a111 and the corresponding second connecting part a121, is provided with a connecting hole a24 which is matched with the protruding column a121b, and when each protruding column a121b is respectively inserted into the corresponding sinking groove a111b after passing through the corresponding connecting hole a24, the cell support a1 can reliably fix the heat conducting aluminum plate a2.
Referring to fig. 9 and 10, the outer edge of the side of the first functional portion a112 away from the second functional portion a122 has a busbar mounting notch a113, a driving engagement structure a and a driven engagement structure a. The first busbar mounting notch a113 is located in the middle of the first functional portion a112, and the first driving clamping structure and the first driven clamping structure are distributed at two ends of the first busbar mounting notch a 113.
Referring to fig. 9 and 10, the outer edge of the side of the second functional portion a122 away from the first functional portion a112 has a second busbar mounting notch a123, a second driving engaging structure and a second driven engaging structure. The second bus plate mounting notch a123 is located in the middle of the second functional portion a122 and is opposite to the first bus plate mounting notch a113, the second driving clamping structure and the second driven clamping structure are distributed at two ends of the second bus plate mounting notch a123, the second driving clamping structure and the first driven clamping structure are opposite, and the first driven clamping structure and the first driving clamping structure are opposite, namely the first bus plate mounting notch a113, the second bus plate mounting notch a123, the first driving clamping structure, the second driven clamping structure and the first driven clamping structure are symmetrically distributed at two sides of the joint surface of the first functional portion a112 and the second functional portion a 122.
Referring to fig. 2, 6 and 4, when two adjacent cell supports a1 are connected, a first busbar mounting notch a113 of one cell support a1 surrounds a second busbar mounting notch a123 of the cell support a1 adjacent to the first busbar mounting notch a113 to form a mounting opening for fixing the busbar mounting support a4, and a second busbar mounting notch a23 of the cell support a1 surrounds a first busbar mounting notch a113 of the cell support a1 adjacent to the other side to form a mounting opening for fixing the busbar mounting support a 4. The first driving clamping structure of one cell support a1 is combined with the second driven clamping structure of the other cell support a1, and the first driven clamping structure of the cell support a1 is combined with the second driving clamping structure of the other cell support a 1. The above structure enables the plurality of cell supports a1 to be reliably connected side by side, and the cell a3 is installed in a modularized manner.
Referring to fig. 2 and fig. 9 to fig. 10, the first driving engaging structure and the second driving engaging structure each include a clamping head portion a151 and a connecting protrusion a152, the clamping head portion a151 and the connecting protrusion a152 extend outwards from the outer edge of the first functional portion a112 or the second functional portion a122, the first driven engaging structure and the second driven engaging structure each include a bayonet portion a153 and a connecting slot a154, the bayonet portion a153 and the connecting slot a154 extend inwards from the outer edge of the first functional portion a112 or the second functional portion a122, the clamping head portion a151 can be embedded into the corresponding bayonet portion a153, the connecting protrusion a152 can be embedded into the corresponding connecting slot a154, the adjacent cell support a1 can be assembled and disassembled quickly through the cooperation of the clamping head portion a151 and the bayonet portion a153 and the cooperation of the connecting protrusion a152 and the connecting slot a154, and meanwhile, the "double-insurance" type connecting structure is more stable and reliable. In addition, the connecting protrusion a152 is semi-cylindrical, and the connecting groove a154 is cylindrical, so that the assembling difficulty between the adjacent cell brackets a1 can be effectively reduced on the premise of ensuring the connection reliability.
Referring to fig. 1 and fig. 8 to fig. 11, the first functional portion a112 and the second functional portion a122 together form a busbar mounting structure a13, and the busbar mounting structure a13 is located between the busbar mounting notch a113 and the busbar mounting notch b 123. The bus bar mounting structure a13 includes two positioning projections a131 and four positioning clips a132, and the two positioning projections a131 and the four positioning clips a132 protrude outward from the surfaces of the corresponding first functional portion a112 and second functional portion a122, respectively. The two positioning clips a132 are located on the first functional portion a112, the other two positioning clips a132 are located on the second functional portion a122, the connecting lines of the four positioning clips a132 are rectangular, the two positioning protrusions a131 are distributed among the four positioning clips a132 along the length direction of the first functional portion a112 and the second functional portion a122, and through the cooperation of the two positioning protrusions a131 and the four positioning clips a132, the bus bar a5 can be stably and reliably installed and fixed, specifically, two positioning holes corresponding to the corresponding positioning protrusions a131 are formed in the bus bar a5, and when the two positioning protrusions a131 are embedded into the corresponding positioning holes in the bus bar a5, two ends of the bus bar a5 are respectively positioned by the two positioning clips a 132. Note that, the bus bar a5 may be mounted on either the bus bar mounting structure a13 or the bus bar mounting bracket a4, and part of the pole eye 33 is overlapped on the bus bar a5 fixed by the bus bar mounting structure a 13.
Referring to fig. 9-12, the positioning protrusion a131 protrudes from the outer edge of the second functional portion a122 near the first functional portion a112, the outer edge of the first functional portion a112 near the second functional portion a122 has a circular arc-shaped groove a114 corresponding to the positioning protrusion a131, part of the side surfaces of the positioning protrusion a131 are respectively embedded into the corresponding groove a114, and the matching of the positioning protrusion a131 and the groove a114 not only plays a role in positioning the assembly of the positive electrode portion a11 and the negative electrode portion a12, effectively improves the assembly efficiency, but also has an error-proofing effect during the assembly. The positive electrode part a11 and the negative electrode part a12 are easy to process and mold, the assembly of the positive electrode part a11 and the negative electrode part a12 is positioned, and the assembly efficiency is effectively improved.
Referring to fig. 2 and fig. 9 to fig. 12, the first functional portion a112 and the second functional portion a122 are formed with two collection line fixing structures a14 together, and the two collection line fixing structures a14 are respectively located at two ends of the busbar mounting structure a 13. Specifically, the two collecting wire fixing structures a14 each include a wire slot a141 and a collecting wire clip seat a142 adapted to the wire slot a141, where the two wire slots a141 extend outwards from two ends of the busbar mounting structure a13 along the length direction of the first functional portion a112 and the second functional portion a122, that is, each wire slot a141 extends outwards from between two adjacent positioning clips a132 along the length direction of the first functional portion a112 and the second functional portion a 122. The wiring groove a141 is formed by recessing adjacent corners of the first functional portion a112 and the second functional portion a 122. The collecting wire clamp seat a142 comprises claw parts which are oppositely arranged at two sides of the corresponding wiring groove a141, the outer ends of the two claw parts are respectively provided with a hook-shaped part, and the hook-shaped parts of the two claw parts are opposite. The structure is simple and reliable, the processing is easy, and the fixing effect on the acquisition line d is further improved. Further, the surfaces of the first functional portion a112 and the second functional portion a122 are respectively provided with two block-shaped protrusions a143, the block-shaped protrusions a143 are distributed on two sides of the corresponding wiring groove a141 in a group, and the two block-shaped protrusions a143 can play a better limiting role on the acquisition line d.
Referring to fig. 4 to 7, the heat conductive aluminum plate a2 includes a plate-shaped main body a22 and overlapping portions a21 respectively located at two ends of the main body a22, wherein the overlapping portions a21 are perpendicular to the main body a22, and are recessed inwards to form a step a23 near the main body a 22. The front end of the lap joint part a21 of the heat conduction aluminum plates a2 can be lapped on the step a23 of the adjacent heat conduction aluminum plates a2, so that a plurality of heat conduction aluminum plates a2 jointly form a stable and reliable integral structure, integral heat conduction is realized, and heat conduction efficiency is improved.
Referring to fig. 4-6 and 8, the battery cell a3 includes a battery plate a31 and two batteries a32 respectively fixed on two sides of the battery plate a31, and two polar eyes a33 are respectively fixed on two sides of the battery plate a31, and the three form a sandwich structure together. One side surface, far away from the battery plate a31, of one battery a32 is attached to the heat-conducting aluminum plate a2, two ends, extending along the length direction of the battery cell support a1, of the battery plate a31 are respectively bent to form fixing portions a311, and two fixing portions a311 of the battery plate a31 of one battery cell a3 are respectively attached to corresponding lap joint portions a 21. The cell plates a31 function to support and fix the cells a32, wherein one cell plate a31 is fixed on the heat conductive aluminum plate a2, and the other cell plate a31 is fixed on the adjacent heat conductive aluminum plate a 2.
Referring to fig. 2, 4, 5 and 8, the pole eyes a33 are sheet-shaped, wherein two adjacent pole eyes a33 penetrate through the corresponding cell support a1 and bend inwards, at this time, the pole eyes a33 are supported by the bus bar a5 on the bus bar mounting structure a13, and the three are fixed by a welding process, and the other two adjacent pole eyes a33 penetrate through the corresponding cell support a1 and bend outwards, at this time, the pole eyes a33 are respectively supported by the bus bar a5 mounted on the corresponding bus bar mounting support a4, and the two pole eyes a33 overlapped on the bus bar a5 are respectively from two adjacent cell units.
Referring to fig. 2 and 3, the battery module 2 further includes a module fixing base b1 and a module fixing top plate b2, and the fixing sleeve b is disposed between the module fixing base b1 and the module fixing top plate b 2.
The module fixing base b1 includes a rectangular bottom plate portion b11, two long side plate portions b12, and two short side plate portions b13, the two long side plate portions b12 and the two short side plate portions b13 are disposed in pairs, and extend upward from the outer edge of the bottom plate portion b11, specifically, the two long side plate portions b12 and the two short side plate portions b13 are folded by different sides of the bottom plate portion b 11.
The height of the long side plate part b12 is higher than that of the short side plate part b13, and the upper edge of the long side plate part b12 is bent inwards and then bent upwards to form a limit connection part b121, wherein the limit connection part b121 can be bent inwards to each cell unit a and then bent upwards so as to be connected with the module fixing top plate b 2. And the reinforcing grooves b123 protruding outwards are distributed on the long side plate part b12 in an array mode, and the reinforcing grooves b123 extend in the height direction, so that the supporting strength of the long side plate part b12 of the module fixing base b1 is effectively improved.
Referring to fig. 2 and 3, the outer edges of two sides of the module fixing top plate b2 corresponding to the two long side plate portions b12 are bent upwards to form a mounting connection portion b21, and the mounting connection portion b21 is fixedly connected with a corresponding limit connection portion b121, specifically, the mounting connection portion b21 is fixedly connected with the corresponding limit connection portion b121 through a screw. The outer edges of the two sides of the module fixing top plate b2 corresponding to the two short side plate portions b13 are bent downwards to form cell limiting portions b22, and the cell limiting portions b22 can be matched with the limiting connection portions b121 to reliably limit the positions of the cell units a. In addition, at least one supporting seat b24 protruding upwards is formed on the module fixing top plate b2 close to one of the mounting connection parts b21 through a stamping process, and related components such as the acquisition line d can be elastically supported. And, be fixed with four pairs of fixed column b23 that set up on module fixed roof b2, each fixed column b23 all upwards extends from module fixed roof b2 to be convenient for connect and fixed data acquisition and wireless transmission module c.
The upper edges of the two short side plate parts b13 are turned outwards to form a base connecting part b131 which is lapped on the upper edge of the base f1, and the lower parts of the two long side plate parts b12 are respectively punched and formed with a plurality of base lapping parts b122 which are lapped on the upper edge of the base f1 through a punching process. The base lap joint part b122 and the base connecting part b131 are respectively provided with at least one screw installation notch, and the screw installation notch corresponds to the threaded connection hole f17 of the base f1 respectively, so that the base f1 is fixedly connected with the base lap joint part b122 and the base connecting part b131 respectively through screws.
Referring to fig. 1, 13-17, the external protection component f includes a cover f2 made of plastic, a base f1 made of metal, and a box outer frame f3 made of metal;
the cover body f2 is covered on the base f1 and forms a cuboid-shaped box dustproof and waterproof structure with the base f1, the box outer frame f3 at least covers part of the outer surface of the cover body f2, and the lower bottom of the box outer frame f3 is turned inwards and buckled with the lower bottom of the base f1 and is fixed through screws.
And the intensity of the box body outer frame f3 is larger than that of the cover body f 2.
Referring to fig. 13 and 16, the base f1 is made of aluminum alloy, so that the strength of the base is high, the wear rate is low, the wear resistance is good, the weight is light, and the requirement of lightweight design of a vehicle is met. The base f1 is of a rectangular box-shaped structure with an opening at the upper part, the outer edge of the lower end of the base f1 is provided with an annular boss f13 protruding outwards, two opposite sides of the bottom wall f12 are respectively provided with a sinking table f14, two annular sealing ring mounting grooves f15 are processed along each side wall f11 of the base f1, the two sealing ring mounting grooves f15 are arranged side by side along the height direction of the side wall f11, O-shaped sealing rings f4 are arranged in each sealing ring mounting groove f15, the O-shaped sealing rings f4 are in interference fit with the base f1 and the cover body f2, an effective sealing effect can be achieved, entry of impurities such as water and dust is prevented, an internal electric core is protected, and the service life is prolonged. Further, screw holes f16 are formed in each side wall f11 of the base f1 and in the sinking table f14 so as to be reliably fixed to the cover f2 and the housing frame f3 by screws.
Referring to fig. 1, 13 and 14, the cover f2 is made of plastic, so that the structure is reliable, easy to process and low in cost. The cover body f2 is of a rectangular shell-shaped structure, after the cover body f2 is covered on the base f1, the lower ends of the side faces f22 are abutted against the annular boss f13, then threaded holes corresponding to the threaded holes f16 on the corresponding side walls f11 are machined in the side faces f22 of the cover body f2 so as to be connected with the side walls f11 of the base f1 through screws, and at the moment, the side walls f11 of the base f1 are respectively located on the inner sides of the corresponding side faces f 22. In addition, the inner surface of the cover body f2 is provided with the reinforcing ribs f24, and each reinforcing rib f24 is arranged along the vertical direction and is arranged on two opposite side surfaces f22 side by side, so that the support strength of the cover body f2 can be effectively improved. The upper end of each reinforcing rib f24 has a projection f241 projected outward in the thickness direction, and the projection f241 is projected closer to the top surface portion to a greater height than the projection farther from the top surface portion. The supporting strength and the bearing capacity of the top surface are improved, so that the internal components are better protected.
The cover body f2 is provided with four handle rope installation through holes f23, each handle rope installation through hole f23 is arranged at four corners of the upper part of the cover body f2 in a pair, one end opening of each handle rope installation through hole f23 is located on the top surface of the cover body f2, the other end opening of each handle rope installation through hole f23 is located on one side surface f22 adjacent to the cover body f2, the opening size of each handle rope installation through hole f23 on the top surface is smaller than the opening size of each handle rope installation through hole f22, and the position of a handle rope h knot can be effectively limited by one opening of each handle rope installation through hole f23, so that the handle ropes h are prevented from slipping. The handle rope h is arranged on the handle rope mounting through hole f23, so that an operator can conveniently move the quick-change battery pack.
Referring to fig. 3, one side f22 of the cover f2 has an electric cabinet f25 integrally formed therewith, an opening f251 is formed on the outer side of the electric cabinet f25, a side cover for sealing the opening f251 is covered on the electric cabinet f25, and the side cover has a flat plate structure and can be mounted on the electric cabinet f25 to completely close the opening f251. The outer edge of the electric cabinet f25 is turned outwards to form a connecting surface f252, an annular sealing ring is arranged between the connecting surface f252 and the side cover, and the connecting surface f252, the annular sealing ring and the side cover are fastened through bolts distributed in an array. The electric element is convenient to install and maintain in the electric cabinet f25 through the opening f251, and the annular sealing ring can play a better waterproof and dustproof performance and prevent water or dust from entering the inner electric element. The electric cabinet f25 has a positive electrode joint mounting port f253 and a negative electrode joint mounting port f254, the positive electrode joint mounting port f253 being used for mounting the battery box positive electrode connection post e32, and the negative electrode joint mounting port f254 being used for mounting the battery box negative electrode connection post e33. In addition, a balance valve f5 is provided in the electric cabinet f25 to balance the internal and external air pressures.
Referring to fig. 1 and 15, the casing outer frame f3 is made of stainless steel, so that the casing outer frame has high strength, corrosion resistance and wear resistance, and can reliably support the internal components of the battery pack. The box body outer frame f3 is of a door-shaped plate structure, and covers the top surface of the cover body f2 and any two opposite side surfaces f22, the box body outer frame f3 is provided with a hollowed-out part f32, part of the top surface of the cover body f2 is exposed through the hollowed-out part f32, and two opposite side surfaces f22 are partially exposed, so that the box body outer frame f3 made of metal materials is prevented from shielding wireless signals received or emitted by electrical elements in the cover body f 2. The four handle rope installation through holes f23 are all located the inboard of box body outer frame f3, have on the box body outer frame f3 with handle rope installation through hole f23 one-to-one's installation opening f31, the shape and the size of each installation opening f31 are unanimous with the opening shape and the size of corresponding handle rope installation through hole f23, make box body outer frame f3 can play certain supporting effect to handle rope h, reduce the wearing and tearing of cover body f 2. It should be noted that, after the two side portions f33 of the outer frame f3 of the box body cover the two side portions f22 of the cover body f2, the corresponding sinking table f14 is embedded after being bent inwards, and the sinking table f is fixedly connected with the base f1 through screws.
Referring to fig. 1 and 18, one side f22 of the external protection component f is provided with an electric cabinet f25 integrally formed therewith, and the electric cabinet f25 is internally divided into a battery pack connecting line arrangement area e2, a connection installation area e3, a high-voltage fusing protection area e4 and a low-voltage arrangement area e1 by partition boards.
The battery pack connecting wire arrangement area e2 is used for installing a charging socket and arranging battery pack incoming wires, the connection installation area e3 is used for installing a positive and negative power supply plug pair connected with a vehicle body, the high-voltage fusing protection area e4 is used for arranging battery pack positive high-voltage elements and fusing protection equipment, the low-voltage arrangement area e1 is used for installing low-voltage elements, and low-voltage signal wires and power supply lines are arranged.
The side wall of the battery pack connecting wire arrangement area e2 is provided with a charging socket e22, a connecting wire row e21 of the charging socket e22 penetrates into the battery box, and an anode wire in the connecting wire row e21 is connected with a wire row in the high-voltage fusing protection area e 4. A fuse e41 is provided in the high-voltage fuse protection area e4, and the fuse e41 guides the positive electrode line to the battery box positive electrode connection post e32 in the connection mounting area e 3.
Preferably, a battery box positive electrode connecting column e32, a magnetic protection relay e31 and a battery box negative electrode connecting column e33 are arranged in the connection installation area e3, the magnetic protection relay e31 is connected with the battery box negative electrode connecting column e33, the magnetic protection relay e31 is also connected with a negative electrode wire of the connecting wire row e21, and a coil connecting wire of the magnetic protection relay e31 stretches into the low-voltage arrangement area e1.
As can be seen from fig. 19, the connection line row e21 is connected with the battery voltage detection connector and the battery core positive-negative balance detection connector of the PCB electric control board 4 through the low current fuse respectively;
a high-voltage column temperature sensor e34 is arranged on the positive electrode connecting column e32 of the battery box, a low-voltage column temperature sensor e35 is arranged on the negative electrode connecting column e33 of the battery box, signal wires of the high-voltage column temperature sensor e34 and the low-voltage column temperature sensor e35 extend into a low-voltage arrangement area e1, and the high-voltage column temperature sensor e34 and the low-voltage column temperature sensor e35 are also connected with a PCB electric control board 4 temperature detection plug-in unit; a reserved plug-in unit is also arranged on the PCB electric control board 4.
In this embodiment, a high-voltage column temperature sensor e34 is provided on the positive electrode connection column e32 of the battery box, a low-voltage column temperature sensor e35 is provided on the negative electrode connection column e33 of the battery box, and signal lines of the high-voltage column temperature sensor e34 and the low-voltage column temperature sensor e35 extend into the low-voltage arrangement region e1. Through temperature detection, safe power supply is realized.
A busbar e36 is arranged in the connection mounting region e3, and the busbar e36 is arranged on the connection end of the positive pole connection post e32 of the battery box. The bus plate e36 gathers all positive wires together, achieves power supply gathering, supplies power, is high-voltage resistant, combines temperature detection and fusing protection, and improves charging reliability.
In the process of power connection control, the power to be connected needs to be identified and controlled, and a radio frequency module e37 is arranged in the connection installation area e 3. Signal recognition, transmission and determination are achieved by means of the radio frequency module e37. And performing intelligent power connection control. In this embodiment, the positive battery case electrode connection post e32, the negative battery case electrode connection post e33 and the radio frequency module e37 are mounted on the same side wall of the electric control case f25, and the radio frequency module e37 is located between the positive battery case electrode connection post e32 and the negative battery case electrode connection post e 33. The positive electrode connecting column e32 and the negative electrode connecting column e33 of the battery box are arranged on the same side, connection and disassembly are convenient, the radio frequency module e37 is arranged at a position close to the connecting end, short-distance radio frequency signal identification is achieved, identification time is shortened, identification signals are enhanced, and signal transmission is convenient. In the present embodiment, all the wire harnesses in the low-voltage arrangement area e1 extend into the battery box. The reasonable arrangement of the lines is realized. Preferably, the isolation wall is a PP material wall, so that high-quality shielding and isolation functions are realized.
As can be seen from fig. 19, the adjacent first functional part a112 and second functional part a122 are formed with a busbar mounting structure a13 and a collection line fixing structure a14 located at two ends of the busbar mounting structure a13, the busbar mounting structure a13 is provided with a busbar a5, the polar eyes a33 of the battery cells a3 located at two sides of the busbar a5 are lapped on the busbar a5, and the polar eyes a33 are connected with the wireless transmission module c on the data collection and PCB electric control board 4 through the collection line fixing structure a14 by the collection line d.
The working principle of the electric cabinet is as follows:
the positive line passes through the battery pack connecting line arrangement area e2 and stretches into the high-voltage fusing protection area e4, and the power supply line is protected in real time through the fuse e 41; the positive electrode wires are gathered through a bus plate e36, so that the positive electrode wires are communicated with a positive electrode connecting column e32 of the battery box. A magnetic protection relay e31 is arranged on a negative electrode wire connected with a battery box negative electrode connecting column e33, and the on-off of the negative electrode wire is realized through the magnetic protection relay e31, so that the connection and disconnection of a power supply are controlled. Realizing intelligent control. The high-voltage column temperature sensor e34 is arranged on the positive electrode connecting column e32 of the battery box, the low-voltage column temperature sensor e35 is arranged on the negative electrode connecting column e33 of the battery box, so that the detection and alarm of the charging temperature are realized, and the connection reliability of a power supply is improved.
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 (5)
1. The utility model provides a new energy automobile grafting stack battery which characterized in that: the battery cell module comprises an external protection component (f), wherein a battery cell module (2) and a fixed sleeve (b) of the battery cell module (2) are arranged in the external protection component (f), the battery cell module (2) is formed by stacking at least two battery cell units (a) with identical structures, and the battery cell module (2) is inserted in the fixed sleeve (b);
The fixing sleeve (b) is of a structure with surrounding upper, lower, left and right walls and front and rear openings, wherein a PCB electric control board (4) is arranged on the upper end face of the upper wall of the fixing sleeve (b), and an electric control circuit is arranged on the PCB electric control board (4);
the battery cell unit (a) is three layers, the middle layer of the battery cell unit is a heat-conducting aluminum plate (a 2), the two sides of the heat-conducting aluminum plate (a 2) are respectively provided with battery cells (a 3) with consistent structures, and all the battery cells (a 3) are connected with the electric control circuit after being connected in series and parallel;
an electric cabinet (f 25) integrally formed with one side surface (f 22) of the external protection assembly (f) is arranged on one side surface (f 22), and the electric cabinet (f 25) is internally divided into a battery pack connecting wire arrangement area (e 2), a connection installation area (e 3), a high-voltage fusing protection area (e 4) and a low-voltage arrangement area (e 1) through partition boards;
the battery pack connecting wire arrangement area (e 2) is used for installing a charging socket and arranging a battery pack inlet wire;
the connection installation area (e 3) is used for installing a positive and negative power supply plug pair for connecting the battery with the vehicle body;
the high-voltage fusing protection area (e 4) is used for arranging a battery pack positive electrode high-voltage element and fusing protection equipment;
the low-voltage arrangement area (e 1) is used for installing low-voltage elements and arranging low-voltage signal lines and power supply lines;
The battery cell unit (a) further comprises two oppositely arranged battery cell supports (a 1), the two battery cell supports (a 1) clamp the heat-conducting aluminum plate (a 2) and the two battery cells (a 3), two vertical edges of the heat-conducting aluminum plate (a 2) are respectively fixedly connected with the corresponding battery cell supports (a 1), the outer edges of the upper transverse edge and the lower transverse edge are respectively bent to form heat-conducting parts (a 21), and the two heat-conducting parts (a 21) are in close contact with the fixed sleeve (b);
two opposite vertical edges of the battery cell (a 3) are respectively provided with a pole eye (a 33), the two pole eyes (a 33) at one end of the battery cell unit (a) are oppositely bent and are mutually overlapped, the two pole eyes (a 33) at the other end are oppositely bent and are respectively overlapped with the pole eyes (a 33) of the adjacent battery cell unit (a);
the battery cell support (a 1) comprises a positive electrode part (a 11) and a negative electrode part (a 12), wherein a first connecting part (a 111) and a first functional part (a 112) are formed after the middle part of the positive electrode part (a 11) is bent, a second connecting part (a 121) and a second functional part (a 122) are formed after the middle part of the negative electrode part (a 12) is bent, one side surface of the first connecting part (a 111) and one side surface of the second connecting part (a 121) are combined, and the outer edges of one side, adjacent to the first functional part (a 112) and the second functional part (a 122), are attached to each other, so that the cross sections of the positive electrode part (a 11) and the negative electrode part (a 12) jointly form a T-shaped structure;
The two vertical edges of the heat conduction aluminum plate (a 2) are respectively fixed between a first connecting part (a 111) and a second connecting part (a 121) of the corresponding battery cell bracket (a 1), and the connecting structure is positioned on a first functional part (a 112) and a second functional part (a 122);
be formed with on adjacent first functional part (a 112) and second functional part (a 122) and converge piece mounting structure (a 13) and be located collection line fixed knot who gathers piece mounting structure (a 13) both ends construct (a 13) install on converging piece mounting structure (a 13) and converge piece (a 5), be located converging piece (a 5) both sides utmost point eye (a 33) overlap joint of electric core (a 3) is on should converging piece (a 5), utmost point eye (a 33) link to each other with wireless transmission module (c) on data acquisition and PCB automatically controlled board (4) through collection line (d) through collection line fixed knot construct (a 14).
2. The new energy automobile plug-in stacked battery of claim 1, wherein: a charging socket (e 22) is arranged on the side wall of the battery pack connecting wire arrangement area (e 2), a connecting wire row (e 21) of the charging socket (e 22) penetrates into the battery box, and a positive wire in the connecting wire row (e 21) is connected with a wire row in the high-voltage fusing protection area (e 4);
A fuse (e 41) is arranged in the high-voltage fusing protection area (e 4), and the fuse (e 41) leads the positive electrode wire to a positive electrode connecting post (e 32) of the battery box in the connecting installation area (e 3);
be provided with in connection installation district (e 3) battery box positive pole spliced pole (e 32), magnetism protection relay (e 31) and battery box negative pole spliced pole (e 33), magnetism protection relay (e 31) with battery box negative pole spliced pole (e 33) are connected, magnetism protection relay (e 31) still with the negative pole line connection of connecting wire row (e 21), the coil connecting wire of magnetism protection relay (e 31) stretches into low pressure district (e 1) of arranging.
3. The new energy automobile plug-in stacked battery of claim 2, wherein: the connecting line row (e 21) is respectively connected with a battery voltage detection connector and a battery core positive and negative balance detection connector of the PCB electric control board (4) through a low-current fuse;
a high-voltage column temperature sensor (e 34) is arranged on the positive electrode connecting column (e 32) of the battery box, a low-voltage column temperature sensor (e 35) is arranged on the negative electrode connecting column (e 33) of the battery box, signal wires of the high-voltage column temperature sensor (e 34) and the low-voltage column temperature sensor (e 35) extend into the low-voltage arrangement area (e 1), and the high-voltage column temperature sensor (e 34) and the low-voltage column temperature sensor (e 35) are also connected with the PCB electric control board (4) temperature detection plug-in unit;
A reserved plug-in unit is also arranged on the PCB (4).
4. The new energy automobile plug-in stacked battery of claim 2, wherein: the battery cell module comprises a battery cell module body (2) and is characterized in that a total positive copper bar (e 51) and a total negative copper bar (e 52) are respectively arranged on two battery cell supports (a 1) on the outermost layer on the same side of the battery cell module body (2), the total positive copper bar (e 51) and the total negative copper bar (e 52) are fixed on the corresponding battery cell supports (a 1) through at least two mounting chucks (a 6) and are overlapped with corresponding electrode eyes (a 33), and the mounting chucks (a 6) are integrally formed with the corresponding battery cell supports (a 1) respectively.
5. The new energy automobile plug-in stacked battery of claim 1, wherein: the external protection component (f) comprises a cover body (f 2) made of plastic materials, a base (f 1) made of metal materials and a box body outer frame (f 3) made of metal materials;
the cover body (f 2) is covered on the base (f 1) and surrounds the base (f 1) to form a cuboid-shaped box dustproof and waterproof structure, the box outer frame (f 3) at least covers part of the outer surface of the cover body (f 2), and the lower bottom of the box outer frame (f 3) is turned inwards and buckled with the lower bottom of the base (f 1) and is fixed through screws.
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| CN201711474842.0A CN108172702B (en) | 2017-12-29 | 2017-12-29 | New energy automobile grafting stack dress battery |
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| CN201711474842.0A CN108172702B (en) | 2017-12-29 | 2017-12-29 | New energy automobile grafting stack dress battery |
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| CN108172702B true CN108172702B (en) | 2023-09-15 |
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| CN109166995A (en) * | 2018-09-18 | 2019-01-08 | 北斗航天汽车（北京）有限公司 | New-energy automobile energy resource system |
| CN109244280B (en) * | 2018-09-25 | 2024-04-16 | 福建易动力电子科技股份有限公司 | Cylindrical lithium ion battery module structure |
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| CN205645963U (en) * | 2016-04-18 | 2016-10-12 | 重庆无线绿洲通信技术有限公司 | Electric automobile modularization quick change power battery unit |
| CN107275532A (en) * | 2017-05-24 | 2017-10-20 | 广东工业大学 | A kind of new driving battery case for electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105742554A (en) * | 2016-04-18 | 2016-07-06 | 重庆无线绿洲通信技术有限公司 | Modular quick-replacement power battery unit of electromobile |
| CN205645963U (en) * | 2016-04-18 | 2016-10-12 | 重庆无线绿洲通信技术有限公司 | Electric automobile modularization quick change power battery unit |
| CN107275532A (en) * | 2017-05-24 | 2017-10-20 | 广东工业大学 | A kind of new driving battery case for electric vehicle |
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