CN117039320B - Modular lithium battery adopting net type fixing mechanism - Google Patents

Modular lithium battery adopting net type fixing mechanism Download PDF

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Publication number
CN117039320B
CN117039320B CN202311283663.4A CN202311283663A CN117039320B CN 117039320 B CN117039320 B CN 117039320B CN 202311283663 A CN202311283663 A CN 202311283663A CN 117039320 B CN117039320 B CN 117039320B
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CN
China
Prior art keywords
fixing mechanism
type fixing
fixedly connected
lithium battery
wedge
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CN202311283663.4A
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Chinese (zh)
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CN117039320A (en
Inventor
麦祖升
夏辉
曾可锋
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Shenzhen Huake New Energy Technology Co ltd
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Shenzhen Huake New Energy Technology Co ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/267Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders having means for adapting to batteries or cells of different types or different sizes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213Racks, 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/244Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264Mountings; 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The invention relates to the technical field of lithium batteries, in particular to a modular lithium battery adopting a net type fixing mechanism, which comprises a protective shell, an upper sealing cover and a plurality of cylindrical lithium batteries, wherein a negative electrode contact panel is arranged in the protective shell, a net type fixing mechanism is further arranged in an inner cavity of the protective shell, the net type fixing mechanism comprises a parallelogram movable outer frame, three left dividing strips and three right dividing strips, the parallelogram movable outer frame is hinged with a group of wedge-shaped movable seats, the two groups of wedge-shaped movable seats are connected with a straight moving cross beam in a sliding mode together, the straight moving cross beam is driven by a first pushing mechanism to move up and down, a second driving device is arranged in the straight moving cross beam, two groups of bottom flush supporting pieces are further arranged below the net type fixing mechanism, and the lower end face of the upper sealing cover is fixedly provided with a positive electrode contact panel. The invention can freely adjust the size of the clamping hole, is applicable to cylindrical batteries with different diameters, and has relatively free requirements on the mounting position of the batteries.

Description

Modular lithium battery adopting net type fixing mechanism
Technical Field
The invention relates to the technical field of lithium batteries, in particular to a modular lithium battery adopting a net type fixing mechanism.
Background
At present, most of power of the rail electric automobile is derived from a lithium battery power battery pack, the interior of the power lithium battery pack is formed by connecting a plurality of cylindrical battery modules in series and parallel, and Chinese patent application No. CN201810658303.0 discloses a 18650 cell parallel battery module, which comprises a module shell and a plurality of 18650 single cells, wherein parallel bus plates are arranged on the outer walls of two sides of the module shell, inserting grooves and electrode penetrating holes are arranged on the inner walls of two sides of the module shell, and heat dissipation gaps are arranged on the walls of the inserting grooves; the device fixes 18650 single battery cells in the module shell in a plug-in clamping manner by arranging a plurality of plug-in grooves in the module shell, so that a high-strength structure required by the parallel battery module can be met;
however, the insertion groove of the module shell in the device can only aim at a cylindrical battery with a specific size, the position of the battery is required to be relatively fixed, and the application range is small; the module shell is formed by jointly splicing the plurality of groups of half shells and the plurality of groups of bus plates, strict requirements are required for the opening positions of the half shells and the bus plates, smooth installation of the cylindrical batteries with specific sizes can be met, the assembly difficulty and the task amount are increased intangibly, and the fixing effect on the batteries is general.
Disclosure of Invention
The present invention is directed to a solution to the above-mentioned problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides an adopt net formula fixed establishment's modular lithium cell, includes the protecting crust, goes up closing cap and a plurality of cylinder lithium cell, the fixed negative pole contact panel that is provided with in inner chamber bottom of protecting crust still is provided with the net formula fixed establishment who is used for fixed a plurality of cylinder lithium cell in the inner chamber of protecting crust, net formula fixed establishment includes parallelogram movable frame, many left side segmentation strip and many right side segmentation strip, parallelogram movable frame's horizontal both ends all articulate has a set of wedge to remove the seat, and two sets of wedge remove the seat and slide joint in the translation crossbeam jointly, the translation crossbeam is by first push mechanism drive along the rear end wall of protecting crust about going on, and the inside of translation crossbeam is provided with the second drive arrangement that drives two sets of wedge and remove the seat and carry out sharp opposite directions, and net formula fixed establishment's below still symmetry is provided with two sets of bottom flush support piece, bottom flush support piece upwards overturns the expansion and carry out the bottom support to the cylinder lithium cell, and the bottom flush support piece is folding the multilayer of attaching is on the inside wall of protecting crust, and the upper end face is fixed at the upper end of protecting crust, and the closing cap is fixed under the positive contact panel of setting.
Preferably, rectangular slots are formed in the rear wall of the inner cavity of the protective shell, the translational beam is mounted in the rectangular slots in a limiting sliding mode, a placing groove is formed in the lower portion of each rectangular slot, a first pushing mechanism is arranged in each placing groove, each pushing mechanism comprises two groups of rotary drums, a spur gear, a pushing rack, a pushing block and a hydraulic cylinder, the two groups of rotary drums are arranged at the two horizontal ends of the translational beam in a rotating mode through vertical shafts, each vertical shaft extends into each placing groove and is fixedly connected with one belt pulley, the spur gear is mounted in the middle of each placing groove in a rotating mode through a pin shaft, two belt pulleys are coaxially fixed on each pin shaft, and the two belt pulleys in the same row are connected in series through a group of belts.
Preferably, the front end cover and the rear end cover of the hydraulic cylinder are fixedly arranged on the upper end wall of the placing groove, a piston rod of the hydraulic cylinder extends out and is fixedly connected with a push block, the push block is fixedly connected with a push rack, the push rack is meshed with a straight gear, and the push rack is limited and slidably arranged in the placing groove.
Preferably, the outer wall of rotary drum is inwards concave to be equipped with the helicla flute, and the equal fixedly connected with of horizontal both sides of translation crossbeam stir the post, stir the post and insert and establish in the helicla flute, the both sides all overlap joint has two sets of supplementary protruding edges about the translation crossbeam, and the inboard movable mounting of supplementary protruding edge of every group has the ball, has seted up the spout that holds the ball on the outer wall of translation crossbeam.
Preferably, two groups of auxiliary flanges positioned in the same row are connected with a group of wedge-shaped movable seats together, a cavity is formed in each wedge-shaped movable seat, a second driving device is arranged in each cavity and comprises two coaxial welded rotating screw rods and a driving motor, an output shaft of each driving motor is fixedly connected with one rotating screw rod, the screw threads of the two rotating screw rods are opposite in direction, a screw rod nut is sleeved on each rotating screw rod, and each wedge-shaped movable seat is fixedly connected with the screw rod nut through a joint block.
Preferably, the left dividing strip and the right dividing strip are not less than two, and equally divide the parallelogram movable outer frame into a plurality of clamping holes for plugging and installing the cylindrical lithium battery.
Preferably, the parallelogram movable outer frame is formed by hinging four cross beams with the same length, the top of the front end and the back end of the parallelogram movable outer frame are respectively provided with a first lower counter bore, the top of the left end and the right end of the parallelogram movable outer frame are respectively provided with an upward upright rod in a protruding mode, the left segmentation bar is lapped on the parallelogram movable outer frame, two end parts of the left segmentation bar are respectively fixedly connected with a downward upright rod inserted in the first lower counter bore, the left segmentation bar is further provided with a second lower counter bore, the lower end of the right segmentation bar is provided with a containing gap matched with the left segmentation bar, each containing gap is fixedly inserted with an inserting column, and the inserting column is inserted in the second lower counter bore.
Preferably, the cylindricality perforation that holds up the pole setting is all offered to two tip of right side segmentation strip, and every cylindricality perforation upper end all is provided with L shape bayonet socket, offered in the pole setting up with L shape bayonet socket matched with jack, L shape bayonet socket one end is contradicted on the lateral wall of pole setting up, and L shape bayonet socket other end runs through the jack, and wears out the part inboard and has offered the slot, and limit sliding installs the dog in the slot, and dog one side is fixed and is provided with the magnetic sheet, dog opposite side fixedly connected with location fixture block, and the location fixture block is half arc fixture block, and the horizontal end of location fixture block is contradicted in the pole setting outer wall up.
Preferably, the preset groove for accommodating the bottom flush supporting piece is formed in the front side and the rear side of the inner cavity of the protective shell, the bottom flush supporting piece comprises a first supporting plate, a second supporting plate and a third supporting plate, one end of the first supporting plate is installed in the preset groove through limiting rotation of the driving shaft, the other end of the first supporting plate is connected with the second supporting plate through limiting rotation of the driving shaft, and a second driving shaft for driving the second supporting plate to overturn is arranged on the first supporting plate.
Preferably, one end of the second supporting plate is fixedly connected with the second driving shaft, the other end of the second driving shaft is in limiting rotation connection with the third supporting plate through the third driving shaft, and the upper end surfaces of the first supporting plate, the second supporting plate and the third supporting plate are mutually flush in the unfolding state.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can achieve the purpose of adjusting the size of the clamping hole by increasing or decreasing the number of the left dividing strips and the right dividing strips, thereby being applicable to cylindrical batteries with different diameters and having relatively free requirements on the mounting positions of the batteries.
1. According to the invention, the parallelogram movable outer frame, the left dividing strips and the right dividing strips are arranged to form the net type fixing mechanism, so that a plurality of cylindrical lithium batteries can be synchronously and rapidly clamped and positioned, the cylindrical lithium batteries are tightly abutted against the positive electrode contact panel and the negative electrode contact panel, stable connection is maintained, and meanwhile, the structure is prevented from being further increased, so that the assembly difficulty and the task amount are greatly reduced.
2. According to the invention, the belt pulley, the belt, the straight gear, the pushing rack and the pushing block are arranged for use in a matched manner, so that the linear pushing force of the hydraulic cylinder can be converted into synchronous rotary motion of the two groups of rotary cylinders, and the rotary motion can be converted into linear up-down movement of the straight moving cross beam through the arrangement of the spiral groove on the rotary cylinders and the matched use of the stirring column, so that the height of the net type fixing mechanism can be adjusted, a worker can assemble a cylindrical lithium battery outside the shell conveniently, the operation space is large, the operation difficulty is small, and the whole size of the module is not increased.
3. The invention has smart structure and strong mechanical linkage, and the driving shaft, the second driving shaft and the third driving shaft are arranged to sequentially drive the first supporting plate, the second supporting plate and the third supporting plate to rotate, so that the invention not only can adaptively upwards overturn and spread to align the bottoms of the plurality of cylindrical lithium batteries, but also can downwards overturn and fold and attach the cylindrical lithium batteries in a multi-layer manner on the inner side wall of the protective shell, thereby facilitating storage, facilitating the storage of the cylindrical lithium batteries, and enabling the cylindrical lithium batteries to be in abutting connection with the negative electrode contact panel.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic cut-away view of the structure of the present invention.
Fig. 3 is a schematic cut-away view of another view of the present invention.
Fig. 4 is a schematic diagram of the internal components of the present invention.
Fig. 5 is a schematic diagram of the connection of the net type fixing mechanism and the translational beam of the present invention.
Fig. 6 is a schematic connection diagram of a second driving device according to the present invention.
Fig. 7 is an expanded schematic view of the bottom flush support member of the present invention.
Fig. 8 is a schematic connection diagram of the mesh fixing mechanism in the present invention.
Fig. 9 is an exploded view of the mesh fixing mechanism of the present invention.
Fig. 10 is a schematic view of a portion of a mesh fastening mechanism according to the present invention.
Fig. 11 is an enlarged schematic view of the area a in fig. 10.
In the figure: the protective housing 1, the clamping groove 101, the upper sealing cover 2, the positive electrode contact panel 3, the arc-shaped bulge 301, the negative electrode contact panel 4, the cylindrical lithium battery 5, the net-type fixing mechanism 6, the parallelogram movable outer frame 601, the first lower counter bore 6011, the upward upright 6012, the insertion hole 6013, the left division bar 602, the second lower counter bore 6021, the downward upright 6022, the right division bar 603, the accommodating notch 6031, the insertion post 6032, the L-shaped insertion seat 604, the positioning clamping block 6041, the stop 6042, the magnetic sheet 6043, the bottom flush support 7, the driving shaft 701, the first support plate 702, the second driving shaft 703, the second support plate 704, the third driving shaft 705, the third support plate 706, the wedge-shaped movable seat 8, the auxiliary flange 9, the ball 10, the joint block 11, the screw nut 12, the rotary screw 13, the driving motor 14, the translational beam 15, the sliding groove 1501, the toggle post 16, the drum 17, the spiral groove 18, the vertical shaft 19, the belt pulley 20, the belt 21, the spur gear 22, the pushing rack 23, the pushing block 24, and the hydraulic cylinder 25.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1 to 10, the present invention provides the following technical solutions: the utility model provides a modular lithium battery adopting net type fixed establishment, includes protection shell 1, upper seal cover 2 and a plurality of cylinder lithium battery 5, and the inner chamber bottom of protection shell 1 is fixed to be provided with negative pole contact panel 4, still is provided with net type fixed establishment 6 that is used for fixing a plurality of cylinder lithium battery 5 in the inner chamber of protection shell 1, and net type fixed establishment 6 includes parallelogram activity frame 601, a plurality of left division strip 602 and a plurality of right division strip 603, left division strip 602 and right division strip 603 set up no less than two to divide into a plurality of centre gripping holes with parallelogram activity frame 601 equally, be used for pegging graft installation cylinder lithium battery 5;
further, the purpose of adjusting the size of the clamping hole is achieved by increasing or decreasing the number of the left dividing strips and the right dividing strips, so that the clamping hole is applicable to cylindrical batteries with different diameters, and the requirement on the mounting position of the batteries is relatively free.
The two horizontal ends of the parallelogram movable outer frame 601 are hinged with a group of wedge-shaped movable seats 8, the two groups of wedge-shaped movable seats 8 are connected with a translational cross beam 15 in a sliding mode, the translational cross beam 15 is driven by a first pushing mechanism to move up and down along the rear end wall of the protective shell 1, a second driving device for driving the two groups of wedge-shaped movable seats 8 to move linearly and oppositely is arranged in the translational cross beam 15, two groups of bottom flush supporting pieces 7 are symmetrically arranged below the net-shaped fixing mechanism 6, the bottom flush supporting pieces 7 are turned upwards to be unfolded to carry out bottom supporting on the cylindrical lithium battery 5, the bottom flush supporting pieces 7 are turned downwards to be folded and attached to the inner side wall of the protective shell 1 in a multi-layer mode, the upper sealing cover 2 is detachably fixed at the upper end of the protective shell 1, and the lower end face of the upper sealing cover 2 is fixedly provided with an anode contact panel 3. An arc-shaped protrusion 301 is arranged on the outer wall of the positive electrode contact panel 3 in a protruding manner, and a clamping groove 101 for accommodating the arc-shaped protrusion 301 is formed in the top of the inner wall of the protective shell 1; the arc-shaped protrusion 301 is matched with the clamping groove 101, so that the upper sealing cover 2 and the protecting shell 1 can be conveniently clamped and fixed.
Furthermore, the parallelogram movable outer frame 601, the three left dividing strips 602 and the three right dividing strips 603 are arranged to form the net type fixing mechanism, so that a plurality of cylindrical lithium batteries 5 can be synchronously clamped and positioned, the cylindrical lithium batteries 5 are tightly abutted against the positive electrode contact panel 3 and the negative electrode contact panel 4, stable connection is maintained, the structure is prevented from being further increased, and the assembly difficulty and the task amount are greatly reduced.
Rectangular slots are formed in the rear wall of the inner cavity of the protective shell 1, the translational beam 15 is mounted in the rectangular slots in a limiting sliding mode, a placing groove is formed in the lower portion of each rectangular slot, a first pushing mechanism is arranged in each placing groove, each pushing mechanism comprises two groups of rotary drums 17, a spur gear 22, a pushing rack 23, a pushing block 24 and a hydraulic cylinder 25, the two groups of rotary drums 17 are rotatably arranged at the two horizontal ends of the translational beam 15 through vertical shafts 19, each vertical shaft 19 extends into each placing groove and is fixedly connected with one belt pulley 20, the spur gears 22 are rotatably mounted in the middle of each placing groove through a pin shaft, two belt pulleys 20 are coaxially fixed on each pin shaft, and the two belt pulleys 20 in the same row are connected in series through a group of belts 21.
Further, through setting up belt pulley 20, belt 21, spur gear 22, promote rack 23 and ejector pad 24 cooperation and use, can be with the linear driving force conversion of pneumatic cylinder 25 for the synchronous rotary motion of two sets of rotary drums 17, and through setting up helical groove 18 and stirring post 16 cooperation and use on rotary drum 17, can be with the straight line of rotary motion conversion for translation crossbeam 15 reciprocate, thereby can adjust the height of net formula fixed establishment 6, the staff can assemble cylinder lithium cell 5 outside the casing of convenience, the operating space is big, the operation degree of difficulty is little and do not increase the whole volume of lithium cell package.
The front end cover and the rear end cover of the hydraulic cylinder 25 are fixedly arranged on the upper end wall of the placing groove, a piston rod of the hydraulic cylinder 25 extends out and is fixedly connected with a push block 24, the push block 24 is fixedly connected with a push rack 23, the push rack 23 is meshed with a straight gear 22, and the push rack 23 is arranged in the placing groove in a limiting sliding manner. The outer wall of rotary drum 17 is inwards concave to be equipped with helical groove 18, and the horizontal both sides of translation crossbeam 15 all fixedly connected with stir post 16, stir post 16 and insert and establish in helical groove 18, and translation crossbeam 15 upper and lower both sides all overlap joint has two sets of supplementary protruding edges 9, and the inboard movable mounting of every supplementary protruding edge 9 of group has ball 10, has seted up the spout 1501 that holds ball 10 on the outer wall of translation crossbeam 15.
Furthermore, the auxiliary protruding edge 9 is arranged, so that the wedge-shaped movable seat 8 can be limited and supported, and the ball 10 is arranged as a support of the auxiliary protruding edge 9 to be in contact with the straight-moving cross beam 15, so that sliding connection is converted into rolling connection, and the friction resistance is small;
specifically, by opening the hydraulic cylinder 25, the piston rod of the hydraulic cylinder 25 extends outwards and pushes the pushing block 24, so that the pushing rack 23 drives the spur gear 22 to rotate, the rotary drum 17 rotates under the transmission action of the plurality of groups of belt pulleys 20 and the belt 21, and the spiral groove 18 on the rotary drum 17 acts on the stirring column 16, so that the translational beam 15 moves up and down in a straight line.
Two groups of auxiliary flanges 9 positioned in the same row are connected with a group of wedge-shaped movable seats 8 together, a cavity is formed in each wedge-shaped movable seat 8, a second driving device is arranged in each cavity and comprises two coaxial welded rotating screw rods 13 and a driving motor 14, an output shaft of each driving motor 14 is fixedly connected with one rotating screw rod 13, the thread directions of the two rotating screw rods 13 are opposite, each rotating screw rod 13 is sleeved with a screw rod nut 12, and each wedge-shaped movable seat 8 is fixedly connected with each screw rod nut 12 through a joint block 11.
Furthermore, by arranging two groups of rotating screw rods 13 with opposite screw thread directions, the screw rod nuts 12 on the screw rods are horizontally moved in opposite directions, so that the wedge-shaped movable seat 8 is driven to stretch or compress the net-shaped fixing mechanism 6, and the net-shaped fixing mechanism 6 is of a parallelogram structure, so that the left dividing strip 602 and the right dividing strip 603 can be driven to well compress and fix the cylindrical lithium battery 5.
Specifically, by turning on the driving motor 14 to drive the two rotating screw rods 13 to rotate, the nut seat 12 on the two rotating screw rods 13 moves linearly in opposite directions due to the opposite directions of the threads of the two rotating screw rods 13, and the nut seat 12 is fixedly connected with the coupling block 11, so that the two groups of wedge-shaped moving seats 8 are close to or far from each other.
The parallelogram movable outer frame 601 is formed by hinging four cross beams with the same length, the top of the front end and the back end of the parallelogram movable outer frame 601 are provided with first lower counter bores 6011, the top of the left end and the right end of the parallelogram movable outer frame 601 are provided with upward upright rods 6012 in a protruding mode, the left dividing strip 602 is lapped on the parallelogram movable outer frame 601, two end portions of the left dividing strip 602 are fixedly connected with downward upright rods 6022 inserted in the first lower counter bores 6011, the left dividing strip 602 is further provided with second lower counter bores 6021, the lower end of the right dividing strip 603 is provided with accommodating gaps 6031 matched with the left dividing strip 602, and each accommodating gap 6031 is fixedly inserted with a plug post 6032, and the plug posts 6032 are inserted in the second lower counter bores 6021.
Further, the parallelogram movable outer frame 601, the left dividing strip 602 and the right dividing strip 603 form a modular assembly, so that the disassembly is convenient;
the two ends of the right partition 603 are all provided with cylindrical perforations for accommodating the upright posts 6012 upwards, the upper end of each cylindrical perforation is provided with an L-shaped plug seat 604, the upright posts 6012 are provided with jacks 6013 matched with the L-shaped plug seats 604 upwards, one ends of the L-shaped plug seats 604 are abutted against the side walls of the upright posts 6012 upwards, the other ends of the L-shaped plug seats 604 penetrate through the jacks 6013, narrow-mouth grooves are formed in the inner sides of the penetrating parts, a stop block 6042 is arranged in each narrow-mouth groove in a limiting sliding mode, a magnetic sheet 6043 is fixedly arranged on one side of each stop block 6042, a positioning clamping block 6041 is fixedly connected with the other side of each positioning clamping block 6041, and the horizontal ends of the positioning clamping blocks 6041 are abutted against the outer walls of the upright posts 6012 upwards.
Further, the two groups of magnetic sheets 6043 are oppositely arranged with like magnetic poles, and the positioning clamping blocks 6041 can be stably abutted against the outer wall of the upward upright rod 6012 by utilizing the repulsive force action between the like magnetic poles, so that the L-shaped plug-in socket 604 is stably plugged in the jack 6013, and the right partition 603 is longitudinally limited.
Specifically, when the cylindrical lithium battery 5 needs to be taken out, only two right dividing strips 603 with a certain interval need to be pulled out from the left dividing strip 602, and at this time, the single clamping space of the mesh fixing mechanism 6 becomes large, and the parallelogram movable outer frame 601 can be deformed normally.
The preset grooves for accommodating the bottom flush supporting piece 7 are formed in the front side and the rear side of the inner cavity of the protective shell 1, the bottom flush supporting piece 7 comprises a first supporting plate 702, a second supporting plate 704 and a third supporting plate 706, one end of the first supporting plate 702 is installed in the preset grooves through limiting rotation of a driving shaft 701, the other end of the first supporting plate 702 is connected with the second supporting plate 704 through limiting rotation, and a second driving shaft 703 for driving the second supporting plate 704 to overturn is arranged on the first supporting plate 702. One end of the second supporting plate 704 is fixedly connected with the second driving shaft 703, the other end of the second driving shaft 703 is in limited rotation connection with the third supporting plate 706 through the third driving shaft 705, and the upper end surfaces of the first supporting plate 702, the second supporting plate 704 and the third supporting plate 706 are mutually flush in the unfolding state.
Further, through setting up driving shaft 701, second drive shaft 703 and third drive shaft 705 and driving in proper order No. one fagging 702, no. two fagging 704 and No. three fagging 706 rotate, not only can the self-adaptation upwards overturn and expand and carry out the bottom to a plurality of cylinder lithium cell 5 and align, but also can overturn downwards and the folding subsides of multilayer are on the inside wall of protecting crust 1, be convenient for accomodate to give the cylinder lithium cell 5, make it and the negative pole contact panel 4 carry out the conflict and connect.
The invention is used when in use: firstly, the upper sealing cover 2 is opened, then the straight moving cross beam 15 is pushed upwards by driving the first pushing mechanism, then the two groups of wedge-shaped moving seats 8 are driven by the second driving device to move oppositely, so that the net-shaped fixing mechanism 6 deforms towards the middle, then the first supporting plate 702, the second supporting plate 704 and the third supporting plate 706 are turned upwards and unfolded by driving the driving shaft 701, the second driving shaft 703 and the third driving shaft 705, then a plurality of cylinder lithium batteries 5 are sequentially inserted into a single parallelogram frame of the net-shaped fixing mechanism 6, and the bottom of the cylinder lithium batteries 5 is supported by using the bottom flush supporting piece 7;
then, the driving motor 14 is started to drive the two rotating screw rods 13 to rotate, the nut seat 12 on the two rotating screw rods 13 moves linearly and oppositely due to the opposite screw thread directions of the two rotating screw rods 13, and the nut seat 12 is fixedly connected with the coupling block 11, so that the two groups of wedge-shaped moving seats 8 are far away, and the net-type fixing mechanism 6 extends and deforms to two sides to clamp and fix a plurality of cylinder lithium batteries 5; then, the third driving shaft 705 is used for overturning and accommodating the third supporting plate 706 downwards into the second supporting plate 704, the second driving shaft 703 is used for overturning and accommodating the second supporting plate 704 with the third supporting plate 706 downwards into the first supporting plate 702, finally, the whole body of the second supporting plate 704 is overturned downwards through the driving shaft 701 and attached to the inner side wall of the protective shell 1, the second supporting plate is convenient to accommodate so as to be abducted to the cylindrical lithium battery 5, at the moment, the hydraulic cylinder 25 is started, the piston rod of the hydraulic cylinder 25 stretches outwards and pushes the pushing block 24, so that the pushing rack 23 drives the spur gear 22 to rotate, the rotary drum 17 rotates under the transmission action of a plurality of groups of pulleys 20 and belts 21, the spiral groove 18 on the rotary drum 17 acts on the stirring column 16, the direct-moving cross beam 15 drives the wedge-shaped moving seat 8 to move downwards, the bottom of the cylindrical lithium battery 5 is abutted against the negative electrode contact panel 4, and then the upper sealing cover 2 is covered on the protective shell 1, and the positive electrode contact panel 3 on the upper sealing cover is tightly contacted with the top of the cylindrical lithium battery 5.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an adopt net formula fixed establishment's modular lithium cell, includes protective housing (1), goes up closing cap (2) and a plurality of cylinder lithium cell (5), its characterized in that: the utility model discloses a lithium battery pack, including protection shell (1), inner chamber bottom fixed be provided with negative pole contact panel (4) in protection shell (1), still be provided with net fixed establishment (6) that are used for fixing a plurality of cylinder lithium batteries (5) in the inner chamber of protection shell (1), net fixed establishment (6) are including parallelogram movable frame (601), many left division strip (602) and many right division strip (603), the horizontal both ends of parallelogram movable frame (601) all articulate and have a set of wedge movable seat (8), parallelogram movable frame (601) are articulated each other by four crossbeams that length is the same and form, and first counter bore (6011) have all been seted up at the front and back end top of parallelogram movable frame (601), and the left and right end top of parallelogram movable frame (601) all outstanding pole setting (6012) that is provided with of a plurality of cylinder lithium batteries (5), and left division strip (602) overlap joint is on parallelogram movable frame (601), and two tip all fixedly connected with of left division strip (602) insert down pole setting (6022) in first counter bore (6011), and left division strip (602) are equipped with second counter bore (6021) and cut apart end (6032) and insert down, insert down the gap (6032) and insert down with each other and cut into each other, the plug-in column (6032) is plugged in the second lower counter bore (6021); the right partition strip (603) is characterized in that cylindrical perforations for accommodating upward upright posts (6012) are formed in two end parts of the right partition strip (603), L-shaped plug-in sockets (604) are formed in the upper ends of each cylindrical perforation, jacks (6013) matched with the L-shaped plug-in sockets (604) are formed in the upward upright posts (6012), one ends of the L-shaped plug-in sockets (604) are abutted against the side walls of the upward upright posts (6012), the other ends of the L-shaped plug-in sockets (604) penetrate through the jacks (6013), narrow-mouth grooves are formed in the inner sides of the penetrating parts, stop blocks (6042) are mounted in limiting sliding mode, magnetic sheets (6043) are fixedly arranged on one sides of the stop blocks (6042), positioning clamping blocks (6041) are fixedly connected to the other sides of the stop blocks (6041), the positioning clamping blocks (6041) are semi-arc-shaped clamping blocks, and the horizontal ends of the positioning clamping blocks (6041) are abutted against the outer walls of the upward upright posts (6012);
the two groups of wedge-shaped movable seats (8) are connected with the translational cross beam (15) in a sliding manner, the translational cross beam (15) is driven by a first pushing mechanism to move up and down along the rear end wall of the protective shell (1), a rectangular slot is formed in the rear wall of the inner cavity of the protective shell (1), the translational cross beam (15) is arranged in the rectangular slot in a limiting sliding manner, a placing groove is formed below the rectangular slot, the first pushing mechanism is arranged in the placing groove, the pushing mechanism comprises two groups of rotary drums (17), spur gears (22), pushing racks (23), pushing blocks (24) and hydraulic cylinders (25), the two groups of rotary drums (17) are all arranged at the two horizontal ends of the translational cross beam (15) in a rotating manner through vertical shafts (19), each vertical shaft (19) extends into the placing groove and is fixedly connected with one belt pulley (20), the spur gears (22) are rotatably arranged in the middle of the placing groove through pin shafts, the two belt pulleys (20) are coaxially fixed on the pin shafts, and the two belt pulleys (20) in the same row are connected in series through a group of belts (21); the outer wall of the rotary drum (17) is concavely provided with a spiral groove (18), the horizontal two sides of the translational beam (15) are fixedly connected with a poking column (16), the poking column (16) is inserted into the spiral groove (18), the upper side and the lower side of the translational beam (15) are respectively lapped with two groups of auxiliary convex edges (9), the inner side of each group of auxiliary convex edges (9) is movably provided with a ball (10), and the outer wall of the translational beam (15) is provided with a chute (1501) for accommodating the ball (10); and the inside that moves crossbeam (15) directly is provided with the second drive arrangement that two sets of wedges of drive remove seat (8) and carry out sharp opposite directions and move, and the below of net formula fixed establishment (6) still symmetry is provided with two sets of bottoms and flushes support piece (7), bottom flush support piece (7) upwards overturn and expand and carry out bottom support to cylinder lithium cell (5), bottom flush support piece (7) overturn the folding subsides of multilayer downwards on the inside wall of protecting crust (1), go up upper end at protecting crust (1) is fixed to upper cover (2), and the lower terminal surface of upper cover (2) is fixed and is provided with anodal contact panel (3).
2. A modular lithium battery employing a mesh-type fixing mechanism as claimed in claim 1, wherein: the front end cover and the rear end cover of the hydraulic cylinder (25) are fixedly arranged on the upper end wall of the placing groove, a piston rod of the hydraulic cylinder (25) extends out and is fixedly connected with a push block (24), the push block (24) is fixedly connected with a push rack (23), the push rack (23) is meshed with a straight gear (22), and the push rack (23) is arranged in the placing groove in a limiting sliding mode.
3. A modular lithium battery employing a mesh-type fixing mechanism as claimed in claim 1, wherein: two groups of auxiliary protruding edges (9) located in the same row are connected with a group of wedge-shaped movable seats (8) together, a cavity is formed in each wedge-shaped movable seat (8), a second driving device is arranged in each cavity and comprises two coaxial welded rotary screw rods (13) and a driving motor (14), an output shaft of each driving motor (14) is fixedly connected with one rotary screw rod (13), the thread directions of the two rotary screw rods (13) are opposite, each rotary screw rod (13) is sleeved with one screw rod nut (12), and each wedge-shaped movable seat (8) is fixedly connected with the screw rod nut (12) through a joint block (11).
4. A modular lithium battery employing a mesh-type fixing mechanism as claimed in claim 1, wherein: the left dividing strip (602) and the right dividing strip (603) are not less than two, and the parallelogram movable outer frame (601) is equally divided into a plurality of clamping holes for inserting and installing the cylindrical lithium battery (5).
5. A modular lithium battery employing a mesh-type fixing mechanism as claimed in claim 1, wherein: the utility model discloses a protection shell, including protection shell (1), including support plate (702), no. two support plates (704) and No. three support plates (706), the prearranged groove that holds bottom flush support piece (7) has all been seted up to both sides around protection shell (1) inner chamber, bottom flush support piece (7) include a fagging (702), no. one support plate (702) one end is installed at prearranged inslot through the spacing rotation of driving shaft (701), no. two support plates (704) are connected in spacing rotation of a fagging (702) other end, and be provided with second drive shaft (703) that drive No. two support plates (704) overturn on a fagging (702).
6. A modular lithium battery employing a mesh-type fixing mechanism as claimed in claim 5, wherein: one end of the second supporting plate (704) is fixedly connected with the second driving shaft (703), the other end of the second driving shaft (703) is in limiting rotation connection with the third supporting plate (706) through the third driving shaft (705), and the upper end surfaces of the first supporting plate (702), the second supporting plate (704) and the third supporting plate (706) are mutually flush in the unfolding state.
CN202311283663.4A 2023-10-07 2023-10-07 Modular lithium battery adopting net type fixing mechanism Active CN117039320B (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103137922A (en) * 2011-11-29 2013-06-05 横河电机株式会社 Battery storage device
EP2800164B1 (en) * 2013-04-30 2017-07-26 Schneider Electric Industries SAS Fixing of a battery with varying size in an electric box
CN112310537A (en) * 2020-12-24 2021-02-02 南京沪泰成套电器有限公司 Combined battery
CN212810435U (en) * 2020-07-28 2021-03-26 铠亚(天津)新能源有限公司 Composite lithium battery pack for forklift
CN215451625U (en) * 2021-06-28 2022-01-07 江苏双骏科技有限公司 Waterproof lithium battery
WO2022197830A1 (en) * 2021-03-18 2022-09-22 Grouper Acquistition Company, Llc Vehicle battery tray and method of manufacturing the same
CN217983582U (en) * 2022-08-08 2022-12-06 广州市颢明新能源科技股份有限公司 Lithium battery protection device
CN116031564A (en) * 2023-02-14 2023-04-28 厦门海辰储能科技股份有限公司 Module support, battery module and electric equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103137922A (en) * 2011-11-29 2013-06-05 横河电机株式会社 Battery storage device
EP2800164B1 (en) * 2013-04-30 2017-07-26 Schneider Electric Industries SAS Fixing of a battery with varying size in an electric box
CN212810435U (en) * 2020-07-28 2021-03-26 铠亚(天津)新能源有限公司 Composite lithium battery pack for forklift
CN112310537A (en) * 2020-12-24 2021-02-02 南京沪泰成套电器有限公司 Combined battery
WO2022197830A1 (en) * 2021-03-18 2022-09-22 Grouper Acquistition Company, Llc Vehicle battery tray and method of manufacturing the same
CN215451625U (en) * 2021-06-28 2022-01-07 江苏双骏科技有限公司 Waterproof lithium battery
CN217983582U (en) * 2022-08-08 2022-12-06 广州市颢明新能源科技股份有限公司 Lithium battery protection device
CN116031564A (en) * 2023-02-14 2023-04-28 厦门海辰储能科技股份有限公司 Module support, battery module and electric equipment

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