CN114050368B - Cell module support with high flatness and shock-absorbing function - Google Patents
Cell module support with high flatness and shock-absorbing function Download PDFInfo
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- CN114050368B CN114050368B CN202111530484.7A CN202111530484A CN114050368B CN 114050368 B CN114050368 B CN 114050368B CN 202111530484 A CN202111530484 A CN 202111530484A CN 114050368 B CN114050368 B CN 114050368B
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- bottom plate
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- conductor bottom
- nickel strap
- cell module
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- 238000003466 welding Methods 0.000 claims abstract description 108
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 98
- 239000004020 conductor Substances 0.000 claims abstract description 68
- 210000002105 tongue Anatomy 0.000 claims abstract description 66
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 49
- 230000035939 shock Effects 0.000 claims abstract description 7
- 239000011810 insulating material Substances 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 5
- 229910000679 solder Inorganic materials 0.000 abstract description 8
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004070 electrodeposition Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 240000005979 Hordeum vulgare Species 0.000 description 1
- 235000007340 Hordeum vulgare Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
- H01M50/516—Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/572—Means for preventing undesired use or discharge
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention discloses a cell module bracket with high flatness and shock absorption function, which relates to the technical field of battery modules and comprises a conductor bottom plate, a plurality of first cells and a plurality of second cells, A plurality of welding tongues are uniformly arranged on the top surface and the bottom surface of the conductor bottom plate, and a plurality of second electric cores are connected with the welding tongues on the bottom surface of the conductor bottom plate in a one-to-one correspondence manner. Through the nickel strap that is the spring-like setting with the welding tongue piece, the nickel strap that the spring-like set up has certain elasticity, can guarantee the planarization of each second electric core electrode through compression welding tongue piece when welding. And the nickel strap that the spring form set up can produce the deformation of certain degree at the normal direction of welding face, can be used to absorb vibration, and vibration between buffering second electric core and the conductor bottom plate has reduced the risk of tearing the solder joint, has effectively avoided the solder joint to tear the inhomogeneous, the inhomogeneous scheduling problem that generates heat that leads to, and then has avoided the local problem that generates heat and cause electric core inefficacy or thermal runaway.
Description
Technical Field
The invention belongs to the technical field of battery modules, and particularly relates to an electric core module support with high flatness and damping function.
Background
In the field of batteries, batteries are a generic term, and cells, modules and battery packs are the different stages of battery application. In the battery, in order to safely and effectively manage hundreds or thousands of individual cells, the cells are not randomly placed inside the housing of the power battery, but are placed in order according to modules and packages. The smallest unit is a cell, a group of cells can form a module, and several modules can form a battery pack.
And (3) an electric core: the electrical cell is the smallest unit of a power battery, and is also an electrical energy storage unit, which must have a high energy density in order to store as much electrical energy as possible. In addition, the life of the battery cells is the most critical factor, and damage to any one battery cell can result in damage to the entire battery pack.
And (3) a module: when multiple cells are packaged together by the same housing frame, and are connected to the outside through a uniform boundary, a module is formed.
And (3) battery pack: this unified whole is called a battery pack after several modules are controlled or managed together by the BMS and the thermal management system.
The current cylindrical battery cell module consists of a group, and the battery cell is mechanically fixed by a plastic module bracket; positive and negative poles of the cells are connected in series welding by means of nickel strips to conduct electricity; the insulation between two adjacent cell modules depends on the technical scheme of sticking highland barley paper, adding plastic insulation plates and the like, and the insulation effect is unstable. The battery module has the defects of various parts, relatively low energy density, difficult assembly process, easy electric safety accidents, high cost and the like.
Meanwhile, at the joint of the positive electrode and the negative electrode of each cell and the cell under each cell, the tongue piece is cut out to be connected with the electrode in a welding way for conducting. At present, most of nickel strap tongues are E-shaped. Before welding, the requirement on the coplanar assembly precision of all the cell electrodes is extremely high, and if the cell electrodes are not on the same plane, the cell electrodes may not be welded. After welding, the tongue piece is short, and can not deform along the normal direction of the welding surface to absorb vibration. If the battery core vibrates for a long time, welding spots can be torn, so that uneven conduction and uneven heating are caused, and the battery core is invalid or is out of control due to local heating.
Disclosure of Invention
In order to solve the problems that the flatness of a battery cell electrode is difficult to ensure and vibration between a battery cell and a module support cannot be solved when the module support is connected with the battery cell in the prior art, the invention aims to provide the battery cell module support with high flatness and a damping function.
The technical scheme adopted by the invention is as follows:
cell module support with high planarization and shock-absorbing function installs a plurality of first electric cores and a plurality of second electric core on the module support, and the module support includes conductor bottom plate, a plurality of welding tongue pieces and a plurality of welding point group, and conductor bottom plate's edge is provided with a plurality of turn-ups curb plates, and the lateral wall of turn-ups curb plate covers there is insulating material, and conductor bottom plate top surface and bottom surface all evenly are provided with a plurality of welding tongue pieces, all are provided with the welding point group around a plurality of welding tongue pieces, and a plurality of first electric cores are connected with the welding point group one-to-one of conductor bottom plate top surface, and a plurality of second electric cores are connected with the welding tongue piece one-to-one of conductor bottom plate bottom surface. The welding tongue piece comprises a nickel strap which is spirally arranged, and the second battery cell is connected with the nickel strap.
Alternatively, the welding point group on the top surface of the conductor bottom plate is connected with the negative electrode of the first electric core.
Alternatively, the welding tongue on the bottom surface of the conductor bottom plate is connected with the positive electrode of the second battery cell.
Alternatively, the nickel strap is a nickel strap with the thickness of 0.1-0.2 mm, one end of the nickel strap is welded and fixed on the conductor bottom plate, the other end of the nickel strap is in a spring spiral arrangement, the welding tongue piece further comprises a positioning groove, and the positioning groove is formed on the conductor bottom plate in the spiral center of the nickel strap.
Alternatively, the positioning groove is a straight groove, and the straight groove is arranged on the conductor bottom plate of the spiral center of the nickel strap.
Alternatively, the welding point group comprises a plurality of cylindrical bosses which are uniformly distributed on the same circumference around the welding tongue piece.
Alternatively, the weld stack includes six cylindrical bosses uniformly distributed about the same circumference around the weld tab.
Alternatively, the plurality of cylindrical bosses are circumscribed on the same circumference, the circumference of the plurality of cylindrical bosses circumscribed forms a mounting hole, and the negative electrode of the first battery cell is mounted in the mounting hole.
The beneficial effects of the invention are as follows:
1) The second battery cells are connected with the welding tongue pieces, the welding tongue pieces are nickel strips which are arranged in a spring shape, the nickel strips which are arranged in the spring shape have certain elasticity, and the flatness of each second battery cell electrode can be ensured by compressing the welding tongue pieces during welding. And the nickel strap that the spring form set up can produce the deformation of certain degree at the normal direction of welding face, can be used to absorb vibration, and vibration between buffering second electric core and the conductor bottom plate has reduced the risk of tearing the solder joint, has effectively avoided the solder joint to tear the inhomogeneous, the inhomogeneous scheduling problem that generates heat that leads to, and then has avoided the local problem that generates heat and cause electric core inefficacy or thermal runaway.
Simultaneously, the welding tongue piece still includes the constant head tank, and the constant head tank is offered on the conductor bottom plate at the center of spiraling of nickel strap, and the constant head tank is used for when welding tongue piece and second electric core are connected, provides the location for welder to the precision requirement of second electric core electrode position when can effectively reducing the welding reduces the assembly welding degree of difficulty.
2) The invention provides a cell module support with high flatness and shock absorption function, which comprises a conductor bottom plate, a plurality of first cells and a plurality of second cells, wherein a plurality of welding tongue pieces are uniformly arranged on the top surface and the bottom surface of the conductor bottom plate, a plurality of welding point groups are uniformly arranged around the plurality of welding tongue pieces, the plurality of first cells are in one-to-one correspondence connection with the welding point groups on the top surface of the conductor bottom plate, and the plurality of second cells are in one-to-one correspondence connection with the welding tongue pieces on the bottom surface of the conductor bottom plate. Through respectively connecting a plurality of first electric cores and a plurality of second electric cores at the top surface and the bottom surface of conductor bottom plate, first electric core and second electric core are connected with the welding point group and the welding tongue piece of conductor bottom plate both sides respectively, have reduced the required part kind of first electric core and second electric core and module support equipment greatly, reduce the whole weight of module support to promote the energy density of electric core module, still reduce the assembly technology degree of difficulty, saved the cost.
3) The edge of the conductor bottom plate is provided with the plurality of flanging side plates, the outer side walls of the flanging side plates are covered with the insulating materials, the flanging side plates of the insulating materials can effectively separate two adjacent groups of module supports, insulation is stable, and electric safety accidents can be effectively prevented from being caused.
4) The first battery cells are connected with the welding point group, and when the battery cell is installed, a plurality of cylindrical bosses are arranged in the empty space between the adjacent first battery cells, and are externally connected with the same circumference, namely the circumference is used for positioning and placing the mounting holes of the cylindrical first battery cells. Therefore, a circle of wall thickness material is not needed to form the mounting hole, thereby saving space and improving the volume density of the module. The module has the advantages of simple structure, small size, easy control of precision and reduced assembly difficulty.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the welding tongue in the present invention, and the rest of the structure is omitted.
Fig. 3 is a schematic view of the structure of the welding point set in the present invention, and the rest of the structure is omitted.
Fig. 4 is a schematic top view of the weld assembly of the present invention with the remainder of the structure omitted.
In the figure: the battery comprises a first battery cell, a 2-conductor bottom plate, a 3-flanging side plate, a 4-welding tongue piece, a 41-positioning groove, a 5-welding point group, a 51-cylindrical boss and a 6-second battery cell.
Detailed Description
Embodiment one:
in this embodiment, as shown in fig. 1, a battery cell module support with high flatness and damping function is provided, a plurality of first battery cells 1 and a plurality of second battery cells 6 are installed on the module support, the module support includes a conductor bottom plate 2, a plurality of welding tongue pieces 4 and a plurality of welding point groups 5, the edge of the conductor bottom plate 2 is provided with a plurality of flanging side plates 3, the outer side wall of the flanging side plates 3 is covered with insulating material, the top surface and the bottom surface of the conductor bottom plate 2 are all evenly provided with a plurality of welding tongue pieces 4, welding point groups 5 are all provided around a plurality of welding tongue pieces 4, a plurality of first battery cells 1 are connected with the welding point groups 5 of the top surface of the conductor bottom plate 2 in a one-to-one correspondence, and a plurality of second battery cells 6 are connected with the welding tongue pieces 4 of the bottom surface of the conductor bottom plate 2 in a one-to-one correspondence.
In this embodiment, specifically, through connecting a plurality of first electric core 1 and a plurality of second electric core 6 respectively on two sides of the conductor bottom plate 2, first electric core 1 and second electric core 6 are connected with welding point group 5 and welding tongue piece 4 of conductor bottom plate 2 both sides respectively, have reduced the required part kind of electric core module equipment greatly, reduce electric core module weight to promote the energy density of electric core module, still reduce the assembly technology degree of difficulty, saved the cost.
In this embodiment, as shown in fig. 1, the welding point groups 5 on the top surface of the conductor bottom plate 2 are welded with the negative electrodes of the first battery cells 1, and several welding point groups 5 are welded with the negative electrodes of the first battery cells 1 in one-to-one correspondence, in which only one connection between the first battery cell 1 and the conductor bottom plate 2 is shown.
In this embodiment, as shown in fig. 1, 3 and 4, the welding point set 5 includes a plurality of cylindrical bosses uniformly distributed on the same circumference around the welding tongue 4.
In the present embodiment, as shown in fig. 1, 3 and 4, the welding point group 5 includes six cylindrical bosses 51, and the six cylindrical bosses 51 are uniformly distributed on the same circumference around the welding tongue 4.
In this embodiment, as shown in fig. 1,3 and 4, a plurality of cylindrical bosses 51 are circumscribed on the same circumference, the circumference on which the plurality of cylindrical bosses 51 are circumscribed forms a mounting hole, and the negative electrode of the first cell 1 is mounted in the mounting hole.
In this embodiment, the welding point set 5 comprises six cylindrical bosses, which are uniformly distributed on the same circumference around the welding tongue 4.
In the current module support technology, the connection between the negative electrode of the battery cell and the module support adopts circular holes to position and place the battery cell, and the module support is composed of a series of circular holes. The circular holes are formed by surrounding the module support material with a certain wall thickness, and the module support positioning and cell placement can be formed by connecting the holes into a whole by the material. Because the material forming the holes has a certain wall thickness, a larger gap is formed between two adjacent battery cores, the volume of the assembled whole module unit is larger, and the volume density of the module bracket with the same volume is relatively lower by adopting groups of round holes. In addition, the hole structure of the module support is relatively complex, and the dimensional accuracy and the assembly requirement are high. If the hole size tolerance is too large, although the assembly of the battery cells is convenient, the battery cells are not firmly fixed, and all the battery cells are possibly not in one plane, so that the welding effect of the nickel strap is affected; if the hole size tolerance is too small, the assembly of the battery cell is difficult, and the battery cell can not be inserted and can not be welded seriously, so that the production efficiency is also affected. Some holes are opened into horn mouths at the front ends, but only play a role in guiding in the earlier stage, and the problem of difficult assembly cannot be completely solved. In order to solve the above problem, in this embodiment, the practical welding point group 5 replaces the original circular hole mounting structure, the first electric core 1 is connected with the welding point group 5, and when in mounting, a plurality of cylindrical bosses 51 are arranged in the space by using the space between the adjacent first electric cores 1, the plurality of cylindrical bosses 51 are externally connected on the same circumference, and the circumference is the mounting hole for positioning and placing the first electric core 1. Therefore, a circle of wall thickness material is not needed to form holes for installation, thereby saving space and improving the volume density of the module. The welding point group 5 has the advantages of simple structure, small size, easy control of precision and reduced assembly difficulty.
In this embodiment, as shown in fig. 1, the welding tongues 4 on the bottom surface of the conductor bottom plate 2 are welded to the positive electrodes of the second cells 6, and several welding tongues 4 are welded to the positive electrodes of the second cells 6 in a one-to-one correspondence, in which only one connection between the second cell 6 and the conductor bottom plate 2 is shown.
In this embodiment, as shown in fig. 1 and 2, the welding tab 4 includes a nickel ribbon arranged in a spiral, and the positive electrode of the second cell 6 is welded to the nickel ribbon.
In this embodiment, as shown in fig. 1 and 2, the nickel strap is a nickel strap with a thickness of 0.1-0.2 mm, one end of the nickel strap is welded and fixed on the conductor bottom plate 2, the other end of the nickel strap is in a spring spiral arrangement, and the welding tongue piece 4 further comprises a positioning groove 41, wherein the positioning groove 41 is formed on the conductor bottom plate 2 in the spiral center of the nickel strap.
In this embodiment, the positioning groove 41 is a straight groove, and the straight groove is formed on the conductor bottom plate 2 in the spiral center of the nickel strap.
In this embodiment, specifically, the second electric core 6 is connected with the welding tongue piece 4, the welding tongue piece 4 is a nickel strap arranged in a spring shape, the nickel strap arranged in a spring shape has a certain elasticity, and the flatness of the electrodes of each second electric core 6 can be ensured by compressing the welding tongue piece 4 during welding. And the nickel strap that the spring form set up can produce the deformation of certain degree at the normal direction of welded surface, can be used to absorb vibration, and vibration between buffering second electric core 6 and the conductor bottom plate 2 has reduced the risk of tearing the solder joint, has effectively avoided the solder joint to tear the inhomogeneous, the inhomogeneous scheduling problem that generates heat that leads to, and then has avoided the local problem that generates heat and cause electric core inefficacy or thermal runaway. Simultaneously, the welding tongue piece 4 still includes constant head tank 41, and constant head tank 41 sets up on the conductor bottom plate at the center of spiraling of nickel strap, and the constant head tank is used for when welding tongue piece 4 and second electric core 6 are connected, provides the location for welder, has effectively reduced the precision requirement of second electric core electrode position when welding, reduces the assembly welding degree of difficulty.
In this embodiment, specifically, the edge of the conductor bottom plate 2 is provided with a plurality of flanging side plates 3, and the outer side walls of the flanging side plates 3 are covered with insulating materials, so that the flanging side plates 3 of the insulating materials can effectively separate two adjacent groups of module supports, insulation is stable, and electric safety accidents can be effectively prevented.
Embodiment two:
The present embodiment provides another alternative to the connection structure of the first cell 1 and the conductor bottom plate 2 on the basis of the first embodiment.
In this embodiment, specifically, a battery cell module support with high planarization and shock-absorbing function installs a plurality of first electric core 1 and a plurality of second electric core 6 on the module support, the module support includes conductor bottom plate 2, a plurality of welding tongue piece 4 and a plurality of mounting groove, the edge of conductor bottom plate 2 is provided with a plurality of turn-ups curb plate 3, the lateral wall of turn-ups curb plate 3 covers and has insulating material, conductor bottom plate 2 top surface and bottom surface all evenly are provided with a plurality of welding tongue pieces 4, all be provided with the mounting groove around a plurality of welding tongue pieces 4, a plurality of first electric core 1 are connected with the mounting groove one-to-one of conductor bottom plate 2 top surface, a plurality of second electric core 6 are connected with the welding tongue piece 4 one-to-one of conductor bottom plate 2 bottom surface.
In this embodiment, specifically, through connecting a plurality of first electric core 1 and a plurality of second electric core 6 respectively on two sides of the conductor bottom plate 2, first electric core 1 and second electric core 6 are connected with the mounting groove and the welding tongue piece 4 of conductor bottom plate 2 both sides respectively, have reduced the required part kind of electric core module equipment greatly, reduce electric core module weight to promote the energy density of electric core module, still reduce the assembly technology degree of difficulty, saved the cost.
In this embodiment, specifically, the mounting grooves on the top surface of the conductor bottom plate 2 are welded with the negative electrode of the first cell 1, and the plurality of mounting grooves are welded with the negative electrode of the first cell 1 in one-to-one correspondence.
In this embodiment, specifically, the welding tongue piece 4 is located in the installation groove, and when installing, the negative electrode of the first electric core 1 is directly clamped in the installation groove, and the structure is simple, the size is small and the assembly degree of difficulty is low.
In this embodiment, specifically, the welding tongue pieces 4 on the bottom surface of the conductor bottom plate 2 are welded to the positive electrodes of the second cells 6, and the welding tongue pieces 4 are welded to the positive electrodes of the second cells 6 in a one-to-one correspondence manner, and only one connection between the second cell 6 and the conductor bottom plate 2 is shown in the figure.
In this embodiment, specifically, the welding tongue 4 includes a nickel strap arranged in a spiral manner, and the positive electrode of the second battery cell 6 is welded to the nickel strap.
In this embodiment, specifically, the nickel strap is a nickel strap with a thickness of 0.1-0.2 mm, one end of the nickel strap is welded and fixed on the conductor bottom plate 2, the other end of the nickel strap is in a spring spiral arrangement, the welding tongue piece 4 further comprises a positioning groove 41, and the positioning groove 41 is formed on the conductor bottom plate 2 in the spiral center of the nickel strap.
In this embodiment, the positioning groove 41 is a straight groove, and the straight groove is formed on the conductor bottom plate 2 in the spiral center of the nickel strap.
In this embodiment, specifically, the second electric core 6 is connected with the welding tongue piece 4, the welding tongue piece 4 is a nickel strap arranged in a spring shape, the nickel strap arranged in a spring shape has a certain elasticity, and the flatness of the electrodes of each second electric core 6 can be ensured by compressing the welding tongue piece 4 during welding. And the nickel strap that the spring form set up can produce the deformation of certain degree at the normal direction of welded surface, can be used to absorb vibration, and vibration between buffering second electric core 6 and the conductor bottom plate 2 has reduced the risk of tearing the solder joint, has effectively avoided the solder joint to tear the inhomogeneous, the inhomogeneous scheduling problem that generates heat that leads to, and then has avoided the local problem that generates heat and cause electric core inefficacy or thermal runaway. Simultaneously, the welding tongue piece 4 still includes constant head tank 41, and constant head tank 41 sets up on the conductor bottom plate at the center of spiraling of nickel strap, and the constant head tank is used for when welding tongue piece 4 and second electric core 6 are connected, provides the location for welder, has effectively reduced the precision requirement of second electric core electrode position when welding, reduces the assembly welding degree of difficulty.
In this embodiment, specifically, the edge of the conductor bottom plate 2 is provided with a plurality of flanging side plates 3, and the outer side walls of the flanging side plates 3 are covered with insulating materials, so that the flanging side plates 3 of the insulating materials can effectively separate two adjacent groups of module supports, insulation is stable, and electric safety accidents can be effectively prevented.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
While embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the invention, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the invention.
Claims (8)
1. Cell module support with high flatness and shock-absorbing function, install a plurality of first electric core (1) and a plurality of second electric core (6) on the module support, its characterized in that: the module support comprises a conductor bottom plate (2), a plurality of welding tongue pieces (4) and a plurality of welding point groups (5), a plurality of flanging side plates (3) are arranged at the edge of the conductor bottom plate (2), insulating materials are covered on the outer side walls of the flanging side plates (3), a plurality of welding tongue pieces (4) are uniformly arranged on the top surface and the bottom surface of the conductor bottom plate (2), the welding point groups (5) are arranged on the periphery of the welding tongue pieces (4), a plurality of first electric cores (1) are connected with the welding point groups (5) on the top surface of the conductor bottom plate (2) in a one-to-one mode, a plurality of second electric cores (6) are connected with the welding tongue pieces (4) on the bottom surface of the conductor bottom plate (2) in a one-to-one mode, the welding tongue pieces (4) comprise nickel strips which are arranged in a spiral mode, and the second electric cores (6) are connected with the nickel strips.
2. A cell module holder with high flatness and shock absorbing function according to claim 1, characterized in that the welding point set (5) of the top surface of the conductor bottom plate (2) is connected with the negative electrode of the first cell (1).
3. A cell module holder with high flatness and shock absorbing function according to claim 2, characterized in that the welding tongues (4) of the bottom surface of the conductor bottom plate (2) are connected with the positive electrode of the second cell (6).
4. A cell module support with high flatness and shock absorbing function according to claim 3, characterized in that the thickness of the nickel strap is 0.1-0.2 mm, one end of the nickel strap is welded and fixed on the conductor bottom plate (2), the other end of the nickel strap is in a spring spiral arrangement, the welding tongue piece (4) further comprises a positioning groove (41), and the positioning groove (41) is arranged on the conductor bottom plate (2) in the spiral center of the nickel strap.
5. The cell module holder with high flatness and shock absorbing function according to claim 4, characterized in that the positioning groove (41) is a straight groove, which is opened on the conductor bottom plate (2) of the spiral center of the nickel strap.
6. A cell module holder with high flatness and damping function according to claim 5, characterized in that the weld stack (5) comprises several cylindrical bosses (51), which cylindrical bosses (51) are evenly distributed on the same circumference around the weld tongue (4).
7. A cell module holder with high flatness and damping function according to claim 6, characterized in that the weld stack (5) comprises six cylindrical bosses (51), six of which cylindrical bosses (51) are evenly distributed on the same circumference around the weld tongue (4).
8. A cell module holder with high flatness and shock absorbing function according to claim 7, characterized in that several of the cylindrical bosses (51) are circumscribed to the same circumference, the circumference circumscribed by several of the cylindrical bosses (51) forms a mounting hole, and the negative electrode of the first cell (1) is mounted in the mounting hole.
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| CN114221078B (en) * | 2021-12-14 | 2024-08-20 | 顺加能科技有限公司 | Cell module support with high energy density |
| CN114221079B (en) * | 2021-12-14 | 2024-08-27 | 顺加能科技有限公司 | Module support for cylindrical cell welding |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114221079A (en) * | 2021-12-14 | 2022-03-22 | 顺加能科技有限公司 | Be used for cylinder electricity core welded module support |
| CN114221078A (en) * | 2021-12-14 | 2022-03-22 | 顺加能科技有限公司 | Battery cell module support with high energy density |
| CN216488358U (en) * | 2021-12-14 | 2022-05-10 | 顺加能科技有限公司 | Battery cell module support with high flatness and shock-absorbing function |
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| JP3848565B2 (en) * | 2001-11-27 | 2006-11-22 | 松下電器産業株式会社 | Battery connection structure, battery module, and battery pack |
| JP5722118B2 (en) * | 2011-05-18 | 2015-05-20 | 日立オートモティブシステムズ株式会社 | Power storage module and manufacturing method thereof |
| CN206480686U (en) * | 2017-03-08 | 2017-09-08 | 江西迪比科股份有限公司 | A kind of conduction connecting structure of cylinder power battery module |
| KR102116187B1 (en) * | 2017-11-09 | 2020-06-05 | 신흥에스이씨주식회사 | Battery pack of improved holder for energy storage system |
| CN207852766U (en) * | 2018-02-11 | 2018-09-11 | 量道（厦门）新能源科技有限公司 | A kind of battery pack of energy-storage battery |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114221079A (en) * | 2021-12-14 | 2022-03-22 | 顺加能科技有限公司 | Be used for cylinder electricity core welded module support |
| CN114221078A (en) * | 2021-12-14 | 2022-03-22 | 顺加能科技有限公司 | Battery cell module support with high energy density |
| CN216488358U (en) * | 2021-12-14 | 2022-05-10 | 顺加能科技有限公司 | Battery cell module support with high flatness and shock-absorbing function |
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