CN120184488B - A protective structure for lithium battery pack - Google Patents
A protective structure for lithium battery packInfo
- Publication number
- CN120184488B CN120184488B CN202510638762.2A CN202510638762A CN120184488B CN 120184488 B CN120184488 B CN 120184488B CN 202510638762 A CN202510638762 A CN 202510638762A CN 120184488 B CN120184488 B CN 120184488B
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- China
- Prior art keywords
- clamping
- lithium battery
- protective
- fixedly arranged
- sliding
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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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
- H01M50/262—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
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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
本发明公开了一种锂电池组用防护结构，涉及锂电池组防护技术领域，包括温度检测机构，以及安装于温度检测机构内部的锂电池本体，所述温度检测机构的底部设置有安全防护机构，且安全防护机构的内部设置有防护气囊，所述温度检测机构包括第一防护支架，所述第一防护支架的两侧对称安装有散热网板，所述第一防护支架的内部前后对称安装有导电连接头，其中，第一防护支架靠近导电连接头的一侧均固定安装有啮合支架，向内移动固定侧板，在支撑挡板和通孔的作用下，能够实现支撑挂钩的滑动，当支撑挂钩与支撑挡板分离时，在连接弹簧的拉力作用下，使支撑挂钩上升，同时环形连接线移动至导电连接头的顶部，进行线路的连接。
The present invention discloses a protective structure for a lithium battery pack, which relates to the technical field of lithium battery pack protection. The structure comprises a temperature detection mechanism and a lithium battery body installed inside the temperature detection mechanism. A safety protection mechanism is provided at the bottom of the temperature detection mechanism, and a protective airbag is provided inside the safety protection mechanism. The temperature detection mechanism comprises a first protective bracket, heat dissipation mesh plates are symmetrically installed on both sides of the first protective bracket, and a conductive connector is symmetrically installed front and back inside the first protective bracket, wherein an engaging bracket is fixedly installed on one side of the first protective bracket close to the conductive connector, and the fixed side plate is moved inward. Under the action of the support baffle and the through hole, the support hook can slide. When the support hook is separated from the support baffle, the support hook rises under the tension of the connecting spring, and the annular connecting line moves to the top of the conductive connector to connect the line.
Description
Technical Field
The invention relates to the technical field of lithium battery pack protection, in particular to a protection structure for a lithium battery pack.
Background
The lithium battery has the advantages of stable discharge voltage, wide working temperature range, low self-discharge rate, long storage life, no memory effect, small volume, light weight, no pollution and the like, and is gradually replaced with a lead-acid battery and a cadmium-nickel battery at present to become the main stream of a power battery.
The utility model discloses a protection architecture for small-size lithium cell group, through being provided with the guard plate in the protective housing body side, and the guard plate is high temperature resistant elastic rubber board, high temperature resistant and buffering effect are good, elasticity is stronger, the rebound effect is obvious, can not take place deformation because of the collision hardly, and the louvre has been seted up on the guard plate, dispel the heat at lithium cell group during operation, guarantee the good operational environment of lithium cell, through being provided with the radiator in the protective housing body, carry out the heat dissipation to the inside heat dissipation of protective housing body, heat dispersion has been improved, and the bracing piece bottom is provided with spring holder and damping spring, prevent to damage because violent vibrations lithium cell bumps from top to bottom, improve the holistic buffering shock resistance of protective housing body, and the device simple structure, and easy operation, dismantle easily, the installation dismantlement and the transportation of small-size lithium cell group of being convenient for use, improve lithium cell group's life, but this patent still has following problem in the in-service use:
This protection architecture for small-size lithium cell group can realize the safety protection of lithium cell group, but in the use of lithium cell group, single lithium cell is because self quality or outside reason lead to the phenomenon that the lithium cell took place to damage, not only influence the life of lithium cell, can lead to the spontaneous combustion phenomenon of single lithium cell when the condition is serious simultaneously, thereby lead to certain influence to other lithium cells, do not set up relevant protection architecture and protect single lithium cell, thereby lead to the phenomenon that whole lithium cell group burns out to appear, when the phenomenon that whole lithium cell group burns out takes place, do not set up corresponding protection architecture that drops and protect lithium cell group, can lead to the fact the phenomenon of burning out to the device that uses lithium cell group, the safety in utilization of whole device is unfavorable for.
A protective structure for a lithium battery pack has been proposed so as to solve the problems set forth in the foregoing.
Disclosure of Invention
The invention aims to provide a protection structure for a lithium battery pack, which solves the problems that in the use process of the lithium battery pack, the service life of the lithium battery is influenced, and the spontaneous combustion phenomenon of the lithium battery is caused when the situation is serious, so that other lithium batteries are influenced to a certain extent, the protection structure is not arranged to protect the single lithium battery, the whole lithium battery pack is burnt, and when the whole lithium battery pack is burnt, the corresponding falling protection structure is not arranged to protect the lithium battery pack, so that the device using the lithium battery pack is burnt, and the use safety of the whole device is not facilitated.
In order to achieve the above purpose, the invention provides a protective structure for a lithium battery pack, which comprises a temperature detection mechanism and a lithium battery body arranged in the temperature detection mechanism;
The bottom of the temperature detection mechanism is provided with a safety protection mechanism, and a protection air bag is arranged in the safety protection mechanism;
further comprises:
the temperature detection mechanism comprises a first protection bracket, heat dissipation net plates are symmetrically arranged on two sides of the first protection bracket, and conductive connectors are symmetrically arranged in the first protection bracket front and back;
The device comprises a first protective bracket, a second protective bracket, a conductive connector, a first protective bracket, a second protective bracket, a third protective bracket, a fourth protective bracket and a third protective bracket, wherein the side, close to the conductive connector, of the first protective bracket is fixedly provided with a meshing bracket;
the end parts of the two meshing racks are fixedly provided with connecting springs, the top of each meshing rack is fixedly provided with an annular connecting wire, and the bottom of each meshing rack is fixedly provided with a supporting hook.
Preferably, the bottom one side fixed mounting of first protective bracket has first sprocket limiting cover, the inside one side fixed mounting of first sprocket limiting cover has the motor that opens and shuts, the output fixedly connected with first sprocket drive assembly of motor that opens and shuts, the one side symmetry of first sprocket drive assembly installs the two-way threaded rod that opens and shuts, two the equal symmetry threaded connection in the outside of two-way threaded rod that opens and shuts has the thread bush that opens and shuts, two the equal fixed mounting in top of thread bush that opens and shuts has the backup pad that opens and shuts.
Preferably, one side of the opening and closing support plate is fixedly provided with a fixed side plate, the top of the fixed side plate is fixedly provided with a support baffle, the top of the fixed side plate is provided with a through hole, the support hook is in sliding connection with the fixed side plate through the through hole, the lithium battery body is placed at the top of the opening and closing support plate, two ends of the lithium battery body are symmetrically provided with connecting wires, and the connecting wires are connected with the conductive connector in a clamping mode.
Preferably, a second sprocket limiting cover is fixedly arranged on one side of the top of the first protection support, one end of the second sprocket limiting cover is rotationally connected with a unfolding knob, the end part of the unfolding knob is fixedly connected with a second link transmission assembly, one side of the second link transmission assembly is symmetrically provided with a unfolding bidirectional threaded rod, two outer sides of the unfolding bidirectional threaded rod are symmetrically connected with unfolding thread sleeves, two unfolding baffle plates are fixedly arranged on the top of the unfolding thread sleeves, and the unfolding baffle plates are in sliding connection with the first protection support.
Preferably, the clamping base is symmetrically installed on both sides of the top of the first protection support, the connecting sliding groove is formed in the inner center position of the clamping base, the clamping rotating rods are symmetrically connected to the top of the clamping base in a rotating mode, the two clamping sliding sleeves are rotationally connected to the top of the clamping rotating rods, the clamping sliding rods are slidingly connected to the inner sides of the clamping sliding sleeves, the clamping support is fixedly installed on the outer sides of the clamping sliding rods, the clamping spring is fixedly installed on one side of the clamping sliding sleeves, and the clamping arms are fixedly installed on the top of the clamping sliding sleeves.
Preferably, the safety protection mechanism comprises a second protection support, a sealing sliding rod is fixedly installed around the inside of the second protection support, a sealing sliding sleeve is connected to the outer side of the sealing sliding rod in a sliding mode, a sealing spring is fixedly installed at the bottom of the sealing sliding sleeve, a sealing rotating rod is connected to the top of the sealing sliding sleeve in a rotating mode, a sealing baffle is connected to the top of the sealing rotating rod in a rotating mode, connecting hinges are symmetrically installed at the bottom of the sealing baffle, and the connecting hinges are connected with the second protection support in a rotating mode.
Preferably, the bottom fixed mounting of second protective bracket has spacing base, the equal symmetry in top both sides of spacing base rotates and is connected with spacing dwang, the top of spacing dwang rotates and is connected with spacing slip cap, the inside sliding connection of spacing slip cap has spacing slip cap, one side fixed mounting of spacing slip cap has spacing spring, the top fixed mounting of spacing slip cap has spacing bracket, the outside fixed mounting of spacing slip cap has spacing splint.
Preferably, the bottom bilateral symmetry of spacing splint is installed and is connected the slide bar, spacing base is close to the outside fixed mounting who connects the slide bar has supporting spring, supporting spring's bottom fixed mounting has the connection bottom plate, the top of connection bottom plate is fixed mounting all around has the connection rack, one side meshing of connection rack is connected with the rotation gear, two fixed mounting has the rotation baffle between the rotation gear.
Preferably, the second protection support is close to the equal fixed mounting in top and bottom of rotation baffle and has sealing baffle, the equal fixed mounting in both sides of connecting bottom plate has the connecting block, the spliced pole is installed to the top symmetry of connecting block, the spliced pole passes through connecting chute and centre gripping base sliding connection, spliced pole fixed mounting is in the bottom of centre gripping support, protection gasbag is placed at the top of limiting splint, protection gasbag's both sides block is connected with the gasbag stopper.
Compared with the prior art, the protective structure for the lithium battery pack has the beneficial effects that the protective structure for the lithium battery pack moves the fixed side plate inwards, can realize the sliding of the supporting hook under the action of the supporting baffle and the through hole, enables the supporting hook to ascend under the tensile force of the connecting spring when the supporting hook is separated from the supporting baffle, simultaneously moves to the top of the conductive connector to connect a circuit, can realize the rotation of the rotating baffle by utilizing the characteristic that the connecting rack is meshed with the rotating gear, can realize the sealing of the second protective bracket under the action of the sealing baffle, and can realize the safety protection through the second protective bracket under the condition that the lithium battery body is spontaneous or exploded, and the protective structure comprises the following specific contents:
1. Through the arrangement of the temperature detection mechanism, the heat radiation screen plate can be utilized to ventilate and radiate the interior of the first protection bracket, the conductive connector and the connecting wire can be utilized to realize the series connection of the lithium battery body, the interior of the first protection bracket is provided with a temperature sensor, when the temperature of the lithium battery body exceeds sixty degrees centigrade, the chemical reaction in the battery can be possibly aggravated, the heat accumulation is initiated, and finally the battery can possibly be burnt or exploded, so that the PLC controller starts the opening and closing motor to drive the first sprocket transmission assembly and the opening and closing bidirectional threaded rod to rotate, the opening and closing thread sleeve drives the opening and closing support plate and the fixed side plate to move relatively while the outer side of the opening and closing bidirectional threaded rod relatively, the lithium battery body can fall down, the connecting wire is separated from the conductive connector at the moment, the lithium battery body is disconnected, and the second protection bracket at the bottom is fallen into for isolation, the use safety of the battery pack is improved, the fixed side plate is moved inwards, the sliding of the supporting hook can be realized under the action of the supporting baffle and the through hole, when the supporting hook is separated from the supporting baffle, the supporting hook is lifted under the action of the tensile force of the connecting spring, the annular connecting wire is moved to the top of the conductive connector to connect a circuit, when one lithium battery body of the lithium battery pack is damaged, the lithium battery body can be normally used, the temperature sensor and the PLC are in the prior art, therefore, the specific structure and the working principle of the lithium battery pack are not described in detail, the second link transmission assembly is driven by the unfolding knob to rotate with the unfolding bidirectional threaded rod, the unfolding threaded sleeve is driven by the unfolding threaded sleeve to relatively move the unfolding baffle, the top of the first protective bracket can be opened, and therefore, the lithium battery body is installed and detached, when all lithium batteries have high-temperature explosion risks, the connecting column drives the clamping support to descend, the clamping sliding sleeve can slide on the outer side of the clamping sliding rod under the action of the clamping rotating rod, the clamping sliding sleeve drives the clamping arms to be unfolded, and the automatic separation of the lithium battery pack from the using main body can be realized, so that the using main body is safely protected, the phenomenon of spontaneous combustion or explosion of the lithium battery pack is avoided, and the using main body is damaged;
2. Through setting up safety protection mechanism, not only can utilize the elasticity effect of seal spring, when making the lithium cell body of high temperature fall into the top of seal baffle, under the effect of seal dwang, realize seal baffle's slow rotation, make the lithium cell body fall into the top of protection gasbag, and extrude the gasbag stopper, the inside air of protection gasbag slowly flows, finally, the lithium cell body falls into the top of limit clamp plate, utilize the gravity effect of lithium cell body self to drive limit clamp plate and descend, the effect of limit dwang down, can make the limit sliding sleeve drive limit bracket relative movement in the outside slip of limit sliding rod, thereby carry out spacingly to the lithium cell body, the baffle is in the incline state this moment, can realize the normal heat dissipation of lithium cell body, when all lithium cell bodies all appear high temperature phenomenon, under the effect of gravity, make the connecting slide rod extrusion connect the bottom plate and stimulate the extension of support spring, connect the bottom plate drive simultaneously and connect the rack and descend, utilize the characteristics of connecting rack and rotating gear meshing connection, can realize the rotation of rotating baffle, under the effect of seal baffle, can realize the closure of second protection bracket, take place under the effect of lithium cell body spontaneous combustion or can take place under the effect of limit sliding rod, can make the lithium cell body take place, the safety protection of the lithium explosion of the safety protection group, can take place, the safety protection of lithium cell is improved.
Drawings
FIG. 1 is a schematic view of the overall three-dimensional structure of the present invention;
FIG. 2 is a schematic diagram of a three-dimensional structure of a temperature detection mechanism according to the present invention;
FIG. 3 is a schematic cross-sectional three-dimensional structure of a first protective bracket according to the present invention;
FIG. 4 is a schematic view of the three-dimensional structure of the annular connecting wire and the supporting hook in the present invention;
FIG. 5 shows a mesh holder according to the invention schematic cross-sectional three-dimensional structure;
FIG. 6 is a schematic view of a three-dimensional structure of an unfolding baffle according to the present invention;
FIG. 7 shows a clamping bracket according to the present invention schematic cross-sectional three-dimensional structure;
FIG. 8 is a schematic view of a three-dimensional structure of a safety mechanism according to the present invention;
FIG. 9 is a schematic cross-sectional three-dimensional structure of a second protective stent according to the present invention;
FIG. 10 is a schematic view of a three-dimensional structure of a closure baffle according to the present invention;
FIG. 11 shows a limiting clamp plate according to the invention schematic drawing of a cross-sectional three-dimensional structure.
In the figure, 1, a temperature detection mechanism; 101, a first protective bracket; 102, a heat radiation screen plate; 103, conductive connectors, 104, engagement brackets, 105, engagement gears, 106, engagement racks, 107, connection springs, 108, annular connection wires, 109, support hooks, 110, first sprocket stop covers, 111, opening and closing motors, 112, first sprocket transmission components, 113, opening and closing bidirectional threaded rods, 114, opening and closing threaded sleeves, 115, opening and closing support plates, 116, fixed side plates, 117, support baffles, 118, through holes, 119, lithium battery bodies, 120, connection wires, 121, second sprocket stop covers, 122, expansion knobs, 123, second link transmission components, 124, expansion bidirectional threaded rods, 125, expansion threaded sleeves, 126, expansion baffles, 127, clamping bases, 128, connection sliding grooves, 129, clamping rotating rods, 130, clamping sliding sleeves, 131, clamping sliding rods, 132, clamping springs, 133, clamping brackets, 134, clamping arms, 2, safety protection mechanisms, 201, second protection brackets, 202, sealing sliding rods, 203, sealing sliding sleeves, 204, sealing springs, 205, sealing rotating rods, 206, sealing baffles, 207, connection hinges, 208, bases, seat, limit brackets, 210, 209, bearing brackets, 211, bearing brackets, 212, 215, connecting bolts, 215, connecting bolts, 212, connecting bolts, and connecting bolts.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. 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. 1-5, the present invention provides the following technical solutions: the utility model provides a lithium cell group is with protective structure, including temperature detection mechanism 1, and install the lithium cell body 119 in temperature detection mechanism 1 inside, temperature detection mechanism 1's bottom is provided with safety protection mechanism 2, and safety protection mechanism 2's inside is provided with protection gasbag 224, temperature detection mechanism 1 includes first protection support 101, heat dissipation otter board 102 is installed to the both sides symmetry of first protection support 101, electrically conductive connector 103 is installed to the inside front and back symmetry of first protection support 101, wherein, one side that first protection support 101 is close to electrically conductive connector 103 all fixed mounting has meshing support 104, meshing support 104's inside central point puts and rotates and be connected with meshing gear 105, meshing gear 105's both sides meshing is connected with meshing rack 106, wherein, two tip all fixed mounting of meshing rack 106 has connecting spring 107, top fixed mounting of top meshing rack 106 has annular connecting wire 108, bottom fixed mounting of bottom meshing rack 106 has support couple 109, first sprocket limiting cover 110's bottom one side fixed mounting has first sprocket limiting cover 110, first sprocket limiting cover 110's inside one side fixed mounting has the motor 111 that opens and shuts, the output of motor 111 is fixed connection has first sprocket 112 to be close to one side and is close to electrically conductive connector 103 all fixed mounting has meshing support 116, two sides of the top fixed mounting of two side plates 114 of the two side plates 114 that open and close the fixed mounting of the screw thread, two sides of the top of the two side plates 114 are fixed mounting of the top plate 116 have the two-way thread 116, two side plates 114 fixed to open and close assembly, two sides of the top plate 114 fixed mounting of the top plate 114 are fixed mounting has the top plate 116, the support couple 109 is through-hole 118 and fixed curb plate 116 sliding connection, lithium cell body 119 is placed at the top of backup pad 115 that opens and shuts, connecting wire 120 is installed to the both ends symmetry of lithium cell body 119, utilize heat dissipation otter board 102 to carry out ventilation and heat dissipation to the inside of first protection support 101, utilize conductive connector 103 and connecting wire 120 can realize the series connection of lithium cell body 119, the inside of first protection support 101 is provided with the temperature-sensing ware, when the temperature of lithium cell body 119 exceeds sixty degrees centigrade, can lead to the inside chemical reaction of battery to aggravate, cause heat accumulation, finally probably lead to battery burning or explosion, therefore start the motor 111 that opens and shuts through the PLC controller and drive first sprocket drive assembly 112 and open and shut the rotation of two-way threaded rod 113, make the thread bush 114 open and shut backup pad 115 and fixed curb plate 116 relative movement in the outside relative movement of two-way threaded rod 113 that opens and shuts, connecting wire 120 and conductive connector 103 separation at this moment, lithium cell body 119 disconnection, and falling into the second protection support 201 of bottom keep apart, the safety in utilization of group is improved.
Referring to fig. 3-6, the connecting wire 120 is connected with the conductive connector 103 in a clamping manner, a second sprocket limiting cover 121 is fixedly installed on one side of the top of the first protection support 101, one end of the second sprocket limiting cover 121 is rotatably connected with a unfolding knob 122, the end of the unfolding knob 122 is fixedly connected with a second link transmission assembly 123, one side of the second link transmission assembly 123 is symmetrically provided with a unfolding bidirectional threaded rod 124, the outsides of the two unfolding bidirectional threaded rods 124 are symmetrically connected with unfolding threaded sleeves 125 in a threaded manner, the tops of the two unfolding threaded sleeves 125 are fixedly provided with unfolding baffles 126, the unfolding baffles 126 are slidably connected with the first protection support 101, the fixing side plates 116 are moved inwards, sliding of the supporting hooks 109 can be achieved under the action of supporting baffles 117 and through holes 118, when the supporting hooks 109 are separated from the supporting baffles 117, under the tensile force of the connecting springs 107, the supporting hooks 109 are lifted, meanwhile, the annular connecting wire 108 is moved to the top of the conductive connector 103, connection of a circuit is carried out, when the lithium battery body 119 is damaged, the lithium battery body 119 is normally used, the temperature sensor and the controller are not in a specific principle of driving the two-dimensional expansion threaded rods and the two-dimensional PLC are driven to rotate, the two expansion baffles are correspondingly, the upper end of the expansion cylindrical body 119 is opened, and the expansion cylindrical body is driven by the current cylindrical body, and the expansion rod is driven by the two expansion cylindrical body and the expansion cylindrical body, and the expansion rod body is correspondingly driven by the expansion cylindrical body, and the lithium battery body 119, and the lithium battery body is correspondingly has a special expansion cylindrical body and the expansion device.
Referring to fig. 3-7, the clamping base 127 is symmetrically installed on two sides of the top of the first protection support 101, the connecting chute 128 is formed in the inner central position of the clamping base 127, the clamping rotating rods 129 are symmetrically connected to the top of the clamping base 127 in a rotating manner, the clamping sliding sleeves 130 are rotatably connected to the tops of the two clamping rotating rods 129, the clamping sliding rods 131 are slidably connected to the inside of the clamping sliding sleeves 130, the clamping support 133 is fixedly installed on the outer side of the clamping sliding rods 131, the clamping spring 132 is fixedly installed on one side of the clamping sliding sleeve 130, the clamping arm 134 is fixedly installed on the top of the clamping sliding sleeve 130, when all lithium batteries have high-temperature explosion risks, the connecting column 223 drives the clamping support 133 to descend, under the action of the clamping rotating rods 129, the clamping sliding sleeve 130 slides on the outer side of the clamping sliding rods 131, the clamping sliding sleeve 130 drives the clamping arms 134 to be unfolded, and automatic detachment of the lithium battery pack from the using main body can be achieved, so that safety protection is performed on the using main body, spontaneous combustion or explosion phenomena are avoided, and damage is caused to the using main body.
Referring to fig. 1 and 8-10, the safety protection mechanism 2 includes a second protection support 201, a sealing sliding rod 202 is fixedly installed around the inside of the second protection support 201, a sealing sliding sleeve 203 is slidingly connected to the outside of the sealing sliding rod 202, a sealing spring 204 is fixedly installed at the bottom of the sealing sliding sleeve 203, a sealing rotating rod 205 is rotationally connected to the top of the sealing sliding sleeve 203, a sealing baffle 206 is rotationally connected to the top of the sealing rotating rod 205, a connecting hinge 207 is symmetrically installed at the bottom of the sealing baffle 206, the connecting hinge 207 is rotationally connected with the second protection support 201, a limiting base 208 is fixedly installed at the bottom of the second protection support 201, limiting rotating rods 209 are symmetrically rotationally connected to both sides of the top of the limiting base 208, a limiting sliding sleeve 210 is rotationally connected to the top of the limiting rotating rod 209, a limiting sliding rod 211 is slidingly connected to the inside of the limiting sliding sleeve 210, a limit spring 212 is fixedly arranged on one side of the limit sliding sleeve 210, a limit bracket 213 is fixedly arranged at the top of the limit sliding sleeve 210, a limit clamping plate 214 is fixedly arranged on the outer side of the limit sliding rod 211, a connecting sliding rod 215 is symmetrically arranged on two sides of the bottom of the limit clamping plate 214, a supporting spring 216 is fixedly arranged on the outer side of the limit base 208 close to the connecting sliding rod 215, a connecting bottom plate 217 is fixedly arranged at the bottom of the supporting spring 216, a connecting rack 218 is fixedly arranged around the top of the connecting bottom plate 217, a rotating gear 219 is connected with one side of the connecting rack 218 in a meshed manner, a rotating baffle 220 is fixedly arranged between the two rotating gears 219, when the high-temperature lithium battery body 119 falls into the top of the sealing baffle 206 by utilizing the elastic force of the sealing spring 204, slow rotation of the sealing baffle 206 is realized under the action of the sealing rotating rod 205, make lithium cell body 119 fall into the top of protection gasbag 224 to extrude gasbag stopper 225, the inside air of protection gasbag 224 slowly flows out, and finally lithium cell body 119 falls into the top of limit splint 214, utilizes the gravity effect of lithium cell body 119 self to drive limit splint 214 and descends, under the effect of spacing dwang 209, can make spacing slip cap 210 drive spacing support 213 relative movement when the outside of spacing slip rod 211 slides, thereby carry out spacingly to lithium cell body 119, the rotation baffle 220 is in the tilt state this moment, can realize the normal heat dissipation of lithium cell body 119.
Referring to fig. 9-11, the second protection support 201 is close to the top and the bottom of the rotating baffle 220 and is fixedly provided with a sealing baffle 221, two sides of the connecting bottom plate 217 are fixedly provided with connecting blocks 222, the top of each connecting block 222 is symmetrically provided with connecting columns 223, each connecting column 223 is slidably connected with the clamping base 127 through a connecting chute 128, each connecting column 223 is fixedly provided at the bottom of the corresponding clamping support 133, a protection air bag 224 is placed at the top of the corresponding limiting clamp 214, two sides of each protection air bag 224 are clamped and connected with air bag plugs 225, when all lithium battery bodies 119 have high temperature, under the action of gravity, the connecting sliding rods 215 are enabled to extrude the connecting bottom plate 217 to pull the supporting springs 216 to stretch, meanwhile, the connecting bottom plate 217 drives the connecting racks 218 to descend, rotation of the rotating baffle 220 can be achieved by utilizing the characteristics that the connecting racks 218 are meshed with the rotating gears 219, sealing baffle 221 can be closed, under the action of the sealing baffle 221, under the condition that spontaneous combustion or explosion of the lithium battery bodies 119 can be generated, the safety protection can be carried out through the second protection support 201, the impact force generated by explosion of the lithium battery bodies 119 is reduced, and the use safety of the lithium battery packs is improved.
Before the protective structure for the lithium battery pack is used, the whole situation of the device needs to be checked firstly to determine that normal operation can be carried out, as shown in fig. 1-11, firstly, the heat dissipation screen 102 is utilized to ventilate and dissipate heat in the first protective support 101, the conductive connector 103 and the connecting wire 120 are utilized to realize series connection of the lithium battery body 119, a temperature sensor is arranged in the first protective support 101, when the temperature of the lithium battery body 119 exceeds sixty degrees centigrade, chemical reaction in the battery is possibly aggravated, heat accumulation is caused, and finally, the battery is possibly burnt or exploded, so that the PLC controller starts the opening and closing motor 111 to drive the first sprocket driving assembly 112 and the opening and closing bidirectional threaded rod 113 to rotate, the opening and closing threaded sleeve 114 drives the opening and closing support plate 115 and the fixed side plate 116 to relatively move while the outer side of the opening and closing bidirectional threaded rod 113 is relatively moved, the connecting wire 120 is separated from the conductive connector 119 at the moment, the lithium battery body 119 is separated from the conductive connector 119 and falls into the second protective support 201 at the bottom, and the use safety of the battery pack is improved.
Secondly, fixed curb plate 116 inwards moves, under the effect of support baffle 117 and through-hole 118, can realize the slip of support couple 109, when support couple 109 and support baffle 117 separation, under the pulling force effect of connecting spring 107, make support couple 109 rise, annular connecting wire 108 moves to the top of electrically conductive connector 103 simultaneously, carry out the connection of circuit, when one lithium cell body 119 of lithium cell group appears damaging, its lithium cell body 119 can normal use, temperature-sensing ware and PLC controller are prior art, therefore the present case does not make detailed description to its specific structure and theory of operation, drive second link drive assembly 123 and expand two-way threaded rod 124 through expansion knob 122 and rotate, make expansion thread bush 125 drive expansion baffle 126 relative movement, can open the top of first protection support 101, thereby carry out the installation and the dismantlement of lithium cell body 119, when all lithium cells all appear high temperature explosion risk, spliced pole 223 drives clamping support 133 and descends, under the effect of clamping rotating rod 129, can realize that clamping slip cap 130 slides in the outside of clamping slip rod 131, make clamping slip cap 130 drive the arm 134 and expand the lithium cell group, thereby can take place the main part of the spontaneous combustion phenomenon to the main part, and the use of the main part is avoided, thereby the main part is expanded to the safety of using the main part, the safety of the safety protection is avoided.
Finally, when the elastic force of the closing spring 204 is utilized to enable the high-temperature lithium battery body 119 to fall into the top of the closing baffle 206, the slow rotation of the closing baffle 206 is realized under the action of the closing rotating rod 205, the lithium battery body 119 falls into the top of the protection air bag 224, the air in the protection air bag 224 slowly flows out, finally, the lithium battery body 119 falls into the top of the limiting clamp plate 214, the gravity of the lithium battery body 119 is utilized to drive the limiting clamp plate 214 to descend, the limiting rotating rod 209 is utilized to enable the limiting sliding sleeve 210 to drive the limiting support 213 to relatively move when the outer side of the limiting sliding rod 211 slides, so that the lithium battery body 119 is limited, at the moment, the rotating baffle 220 is in an inclined state, normal heat dissipation of the lithium battery body 119 can be realized, when all the lithium battery bodies 119 have high-temperature phenomena, the connecting sliding rod 215 is enabled to extrude the connecting base plate 217 to push the supporting spring 216 to stretch under the action of gravity, and meanwhile, the connecting base plate 217 is driven to descend by the connecting rack 218, the characteristic of meshing connection of the connecting rack 218 and the rotating gear 219 can be realized, the rotation of the rotating baffle 220 can be realized, the lithium battery body 119 can be automatically burnt by the sealing support 201, the second explosion can be realized, the safety of the lithium battery 119 can be protected, and the safety explosion of the second explosion can be protected by the second explosion support 201, and the safety protection of the lithium battery 119 can be greatly reduced.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (9)
1. The protection structure for the lithium battery pack comprises a temperature detection mechanism and a lithium battery body arranged in the temperature detection mechanism;
The bottom of the temperature detection mechanism is provided with a safety protection mechanism, and a protection air bag is arranged in the safety protection mechanism;
characterized by further comprising:
the temperature detection mechanism comprises a first protection bracket, heat dissipation net plates are symmetrically arranged on two sides of the first protection bracket, and conductive connectors are symmetrically arranged in the first protection bracket front and back;
The device comprises a first protective bracket, a second protective bracket, a conductive connector, a first protective bracket, a second protective bracket, a third protective bracket, a fourth protective bracket and a third protective bracket, wherein the side, close to the conductive connector, of the first protective bracket is fixedly provided with a meshing bracket;
The two meshed racks are fixedly arranged at the ends of the two meshed racks, an annular connecting line is fixedly arranged at the top of the meshed racks, and a supporting hook is fixedly arranged at the bottom of the meshed racks;
When the temperature of the lithium battery body exceeds sixty degrees centigrade, the PLC controls the bottom of the temperature detection mechanism to be opened, so that the lithium battery body falls into the safety protection mechanism for isolation, and the use safety of the battery pack is improved.
2. The protective structure for a lithium battery pack according to claim 1, wherein a first sprocket limiting cover is fixedly arranged on one side of the bottom of the first protective support, an opening and closing motor is fixedly arranged on one side of the inside of the first sprocket limiting cover, the output end of the opening and closing motor is fixedly connected with a first sprocket transmission assembly, an opening and closing bidirectional threaded rod is symmetrically arranged on one side of the first sprocket transmission assembly, opening and closing threaded sleeves are symmetrically connected on the outer sides of the two opening and closing bidirectional threaded rods through threads, and opening and closing support plates are fixedly arranged on the tops of the two opening and closing threaded sleeves.
3. The protective structure for a lithium battery pack according to claim 2, wherein a fixed side plate is fixedly arranged on one side of the opening and closing support plate, a support baffle is fixedly arranged on the top of the fixed side plate, a through hole is formed in the top of the fixed side plate, the support hook is in sliding connection with the fixed side plate through the through hole, the lithium battery body is placed on the top of the opening and closing support plate, connecting wires are symmetrically arranged at two ends of the lithium battery body, and the connecting wires are connected with the conductive connectors in a clamping mode.
4. The protective structure for a lithium battery pack according to claim 3, wherein a second sprocket limiting cover is fixedly arranged on one side of the top of the first protective bracket, one end of the second sprocket limiting cover is rotatably connected with a unfolding knob, the end part of the unfolding knob is fixedly connected with a second link transmission assembly, one side of the second link transmission assembly is symmetrically provided with a unfolding bidirectional threaded rod, the outer sides of the two unfolding bidirectional threaded rods are symmetrically connected with unfolding threaded sleeves, the tops of the two unfolding threaded sleeves are fixedly provided with unfolding baffles, and the unfolding baffles are in sliding connection with the first protective bracket.
5. The protective structure for a lithium battery pack according to claim 4, wherein clamping bases are symmetrically arranged on two sides of the top of the first protective support, connecting sliding grooves are formed in the inner center positions of the clamping bases, clamping rotating rods are symmetrically connected to the tops of the clamping bases in a rotating mode, clamping sliding sleeves are rotatably connected to the tops of the two clamping rotating rods, clamping sliding rods are slidably connected to the inner portions of the clamping sliding sleeves, clamping supports are fixedly arranged on the outer sides of the clamping sliding rods, clamping springs are fixedly arranged on one sides of the clamping sliding sleeves, and clamping arms are fixedly arranged on the tops of the clamping sliding sleeves.
6. The protective structure for a lithium battery pack according to claim 5, wherein the safety protection mechanism comprises a second protection support, a sealing sliding rod is fixedly installed around the inside of the second protection support, a sealing sliding sleeve is connected to the outer side of the sealing sliding rod in a sliding manner, a sealing spring is fixedly installed at the bottom of the sealing sliding sleeve, a sealing rotating rod is rotatably connected to the top of the sealing sliding sleeve, a sealing baffle is rotatably connected to the top of the sealing rotating rod, connecting hinges are symmetrically installed at the bottom of the sealing baffle, and the connecting hinges are rotatably connected with the second protection support.
7. The protective structure for a lithium battery pack according to claim 6, wherein a limit base is fixedly arranged at the bottom of the second protective bracket, limit rotating rods are symmetrically and rotatably connected to two sides of the top of the limit base, limit sliding sleeves are rotatably connected to the tops of the limit rotating rods, limit sliding rods are slidably connected to the interiors of the limit sliding sleeves, limit springs are fixedly arranged on one sides of the limit sliding sleeves, limit brackets are fixedly arranged at the tops of the limit sliding sleeves, and limit clamping plates are fixedly arranged on the outer sides of the limit sliding rods.
8. The protective structure for a lithium battery pack according to claim 7, wherein connecting sliding rods are symmetrically arranged on two sides of the bottom of the limiting clamping plate, supporting springs are fixedly arranged on the outer sides of the limiting base close to the connecting sliding rods, connecting bottom plates are fixedly arranged on the bottoms of the supporting springs, connecting racks are fixedly arranged on the periphery of the tops of the connecting bottom plates, rotating gears are meshed and connected on one sides of the connecting racks, and a rotating baffle is fixedly arranged between the two rotating gears.
9. The protective structure for a lithium battery pack according to claim 8, wherein the second protective bracket is fixedly provided with sealing baffles near the top and the bottom of the rotating baffle, connecting blocks are fixedly provided on two sides of the connecting bottom plate, connecting columns are symmetrically arranged on the top of the connecting blocks and are in sliding connection with the clamping base through connecting sliding grooves, the connecting columns are fixedly arranged at the bottom of the clamping bracket, the protective air bag is placed at the top of the limiting clamping plate, and air bag plugs are connected on two sides of the protective air bag in a clamping mode.
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| KR20210006660A (en) * | 2019-07-09 | 2021-01-19 | 유윤종 | Battery storage unit and battery storage room |
| CN113921985A (en) * | 2021-09-26 | 2022-01-11 | 深圳市立杰天源科技有限公司 | Lithium battery protection plate for flame and explosion prevention |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3539168B2 (en) * | 1997-12-10 | 2004-07-07 | 松下電器産業株式会社 | Pack battery box packing device |
| EP2826095A2 (en) * | 2012-03-13 | 2015-01-21 | Maxwell Technologies, Inc. | Capacitor and battery combination |
| CN214706104U (en) * | 2021-04-09 | 2021-11-12 | 徐州力能电子科技有限公司 | A lithium battery for electric vehicle with protective protection structure |
| CN219371110U (en) * | 2023-02-24 | 2023-07-18 | 合肥巨宝新能源科技有限公司 | Lithium battery with fall protection function |
| CN116598615A (en) * | 2023-06-02 | 2023-08-15 | 宁波新扬电子科技有限公司 | Lithium battery pack protection board |
| CN117393939B (en) * | 2023-12-04 | 2025-04-01 | 中汇丰(北京)科技有限公司 | A battery powered safety control device and method of using the same |
| CN117691274A (en) * | 2023-12-13 | 2024-03-12 | 陕西长风动力有限公司 | Lithium battery pack of self-falling battery cell for sensing high-temperature fire |
| CN119725929A (en) * | 2025-01-02 | 2025-03-28 | 山东精拓工程机械有限公司 | A battery monitoring device for excavators |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20210006660A (en) * | 2019-07-09 | 2021-01-19 | 유윤종 | Battery storage unit and battery storage room |
| CN113921985A (en) * | 2021-09-26 | 2022-01-11 | 深圳市立杰天源科技有限公司 | Lithium battery protection plate for flame and explosion prevention |
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