Lithium battery high-temperature protection structure and lithium battery

Abstract

The invention belongs to the technical field of battery protection, particularly relates to a lithium battery high-temperature protection structure and a lithium battery, and aims to solve the problems that most existing high-temperature protection structures are simple fan type structures, air exchange in a battery pack shell is realized through blowing of fan blades, the air flowing direction is fixed in the heat dissipation mode, and the heat dissipation efficiency is low. In order to solve the problem that heat accumulation at a certain position in a shell is easily caused, the defect still causes heat accumulation of a battery pack, and when a battery is subjected to heat dissipation, the heat dissipation mode is single, heat dissipation is not comprehensive, and the heat dissipation effect is poor, the following scheme is provided: the heat dissipation device comprises a tool supporting plate, and the upper side of the tool supporting plate is connected with a tool protection frame through bolts. The lithium battery high-temperature protection structure and the lithium battery have the advantages that the air flowing direction is changed, heat accumulation at a certain position in the battery is avoided, heat accumulation of a battery pack is reduced, and when the battery is subjected to heat dissipation, the lithium battery is uniformly subjected to heat dissipation, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery protection, and in particular to a lithium battery high temperature protection structure and a lithium battery. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. Lithium batteries have gradually become the mainstream of power batteries due to their small size and light weight, high energy and power, low self-discharge rate, environmental protection and long service life. With the rapid development of the new energy vehicle market, lithium batteries have been widely used, and their safety issues have become increasingly prominent. Fire accidents of new energy vehicles occur from time to time, and their safety has become the focus of social attention. The vast majority of fires in new energy vehicles are caused by thermal runaway of lithium batteries. Lithium batteries catch fire due to thermal runaway, and thermal expansion causes the entire battery system and the entire vehicle to catch fire. Therefore, the requirements for the safety performance of lithium-ion power batteries have become more stringent. Once the existing lithium battery of new energy vehicles has thermal runaway, the temperature of the battery body will rise abnormally, and there is a risk of thermal runaway fire.

[0003] Most of the existing high-temperature protection structures are simple fan-type structures, which achieve air exchange in the battery pack casing by blowing air through fan blades. However, this heat dissipation method has a fixed air flow direction, which easily causes heat accumulation in a certain place in the casing. This defect will still cause heat accumulation in the battery pack. When cooling the battery, the heat dissipation method is single and the incomplete heat dissipation leads to poor heat dissipation effect. Summary of the invention

[0004] The present invention discloses a lithium battery high temperature protection structure and a lithium battery, aiming to solve the technical problem that most of the existing high temperature protection structures in the background technology are simple fan-type structures, and air exchange in the battery pack casing is achieved by blowing air through fan blades. However, the air flow direction of this heat dissipation method is fixed, which easily causes heat accumulation in a certain place in the casing. This defect still causes heat accumulation in the battery pack. When the battery is cooled, the heat dissipation method is single, and the incomplete heat dissipation leads to poor heat dissipation effect.

[0005] The lithium battery high-temperature protection structure proposed in the present invention includes a tooling support plate, the upper side of the tooling support plate is connected to a tooling protection frame by bolts, and a heat dissipation module is arranged inside the tooling protection frame, and the heat dissipation module includes a tooling mounting plate and a tooling adjustment sliding frame, the upper side of the tooling protection frame is connected to a tooling sealing cover plate by bolts, tooling mounting rods are fixedly connected to the tooling support plate at equal distances by bolts, and the sides of multiple tooling mounting rods are each provided with an installation circular hole one, and the inside of the multiple installation circular holes one is fixedly connected with the same serpentine circulation cooling water pipe, and the serpentine circulation cooling water pipe is located inside the tooling protection frame.

[0006] In a preferred solution, a cooling circulation box is provided on the tooling support plate, and the water inlet end of the cooling circulation box is connected to one end of a serpentine circulation cooling water pipe through a circulation connecting pipe, two mounting circular holes 2 are provided on both sides of the tooling protection frame, and the interiors of the two opposite mounting circular holes 2 are fixedly connected to limiting cylinders, and smooth holes are provided on both sides of the tooling adjustment sliding frame, and extrusion springs are distributed in an annular manner inside the two smooth holes, and the other ends of multiple extrusion springs located on the same side are fixedly connected to the same U-shaped mounting long frame, and circular holes 1 are provided on both sides of the multiple U-shaped mounting long frames at equal distances, and the interiors of the two opposite circular holes 1 on the same U-shaped mounting long frame are connected to fitting balls through bearings, and the outer walls of the fitting balls are against the outer walls of the limiting cylinders.

[0007] In a preferred solution, the tooling adjustment slide frame is provided with a third mounting circular hole, and the interior of the third mounting circular hole is fixedly connected to a limited circular tooth frame, the upper side of the tooling adjustment slide frame is connected to a fixing plate by bolts, the upper side of the fixing plate is connected to a U-shaped mounting seat by bolts, the side of the U-shaped mounting seat is provided with screw holes, and both sides of the tooling protection frame are provided with second circular holes, the interiors of the two second circular holes are connected to the same adjusting screw rod by bearings, the adjusting screw rod moves in the screw hole on the U-shaped mounting seat, the side of the tooling mounting plate is fixedly connected to a driving motor, the driving end of the driving motor and one end of the adjusting screw rod are fixedly connected to pulleys, and the external sliding connection of the two pulleys is the same linkage belt.

[0008] In a preferred solution, a circular hole three is provided on the fixed plate, and a rotating cylinder is connected to the inside of the circular hole three through a bearing, an adjusting rotating rod is fixedly connected to the outside of the rotating cylinder, two sliding grooves are provided on one side of the adjusting rotating rod, and an adjusting slide seat is slidably connected to the inside of the two sliding grooves, and a temperature monitor and a blower fan body are fixedly connected to the sides of the two adjusting slide seats facing the tooling support plate, respectively, and a circular hole four is provided on the sides of the two adjusting slide seats facing the tooling sealing cover plate, and the insides of the two circular holes four are connected to a rotating shaft one through a bearing.

[0009] In a preferred solution, two circular holes five are opened on one side of the adjusting rotating rod, and the interiors of the two circular holes five are connected to rotating shafts through bearings, and the exteriors of the two rotating shafts are fixedly connected to linkage gears, which are meshed with the tooth block ends of the limiting circular gear frame, and one end of the two rotating shafts is fixedly connected to a rotating push plate.

[0010] In a preferred solution, the two rotating push plates are each provided with a circular hole six away from the center thereof, the interior of the two circular holes six are connected with an eccentric push shaft via a bearing, the eccentric push shaft and the exterior of the rotating shaft one on the same side are movably connected with the same adjusting push rod, a universal motor is fixedly connected to the inner side of the U-shaped mounting seat, the driving end of the universal motor is connected to one end of the rotating cylinder via a coupling, and the side of the tooling protection frame is connected with an insulation frame via bolts.

[0011] By providing a heat dissipation module, during the use of the lithium battery, the cooling circulation box is started to circulate and cool the lithium battery in the tooling protection frame through the serpentine circulation cooling water pipe, and the blower fan body is started to blow air to the lithium battery, so that the generated cold air is blown to the outside of the lithium battery, and the universal motor is started at the same time, and the rotating cylinder is driven by the universal motor to rotate the adjusting rotating rod. During the rotation of the adjusting rotating rod, the linkage gear on the adjusting rotating rod rotates under the limit of the limit spherical gear frame, so that the linkage gear drives the rotating shaft to rotate the rotating push plate, and the adjusting push rod on the rotating push plate drives the adjusting slide to reciprocate in the slide groove on the adjusting rotating rod, so that the blower fan body on the adjusting slide is horizontally multi-positioned to perform air blowing and cooling treatment on the lithium battery, and the temperature monitoring meter on the adjusting slide is used to monitor the temperature of the lithium battery. The temperature is accurately monitored, so as to achieve accurate cooling operation of the lithium battery. At the same time, the driving motor is started to drive the linkage belt to rotate the adjusting screw, so that the adjusting screw drives the tooling adjusting slide frame to slide outside the limit cylinder, so that the lithium battery is evenly cooled. When the tooling adjusting slide frame slides outside the limit cylinder, the extrusion spring on the tooling adjusting slide frame uses its own elasticity to make the fitting ball in the U-shaped installation long frame resist the outer wall of the limit cylinder. The contact area between the fitting ball and the outer wall of the limit cylinder is small, thereby reducing the friction of the tooling adjusting slide frame on the limit cylinder and increasing its service life. The heat dissipation module changes the direction of air flow to avoid heat accumulation in a certain place in the battery, thereby reducing the heat accumulation of the battery pack. When the battery is dissipated, the lithium battery is evenly dissipated to improve the heat dissipation effect.

[0012] A lithium battery, according to any of the lithium battery high temperature protection structures as described above, also includes a lithium battery pack body, the lithium battery pack body is arranged on the upper side of the tooling support plate, a ventilation module is arranged below the tooling support plate, the ventilation module includes a spoiler mounting frame, one side of the tooling support plate is equidistantly provided with mounting openings one, and opposite sides of multiple mounting openings one are fixedly connected with telescopic springs, the other ends of two telescopic springs located in the same mounting opening one are fixedly connected with the same filter dustproof plate, the opposite sides of multiple mounting openings one are fixedly connected with the same support limit plate, the side surfaces of multiple support limit plates are provided with limited circular holes, the interiors of multiple limited circular holes are slidably connected with reciprocating impact columns, one end of the multiple reciprocating impact columns is fixedly connected with the same lifting impact plate, and the other side of the lifting impact plate is fixedly connected with the same lifting impact plate at equal distances. A return spring is connected, and the other end of the return spring is fixedly connected to the inner side of the spoiler mounting frame. A mounting opening 2 is provided on the lifting impact plate, and circular holes 7 are provided on both sides of the mounting opening 2 at equal distances. The interiors of the two opposite circular holes 7 are connected with rubber rollers through bearings. A servo motor is fixedly connected to the inner side of the spoiler mounting frame, and an eccentric pushing block is fixedly connected to the driving end of the servo motor. Two mounting openings 3 are provided on the outer side of the spoiler mounting frame, and the sides of the two mounting openings 3 are connected with ventilation blades through hinges. The inner sides of the two ventilation blades and the inner side of the spoiler mounting frame are fixedly connected with mounting blocks. A circular hole 8 is provided on one side of the multiple mounting blocks, and the interiors of the two opposite circular holes 8 are connected with a rotating support seat through a bearing. The opposite sides of the two rotating support seats on the same side are fixedly connected with the same electric driving rod.

[0013] By providing a ventilation module, when the lithium battery pack body is in use, the ventilation blades are opened by starting the electric drive rod to ventilate the air in the tooling protection frame. At this time, the filter dustproof plate filters the incoming gas to prevent dust from entering the tooling protection frame and polluting the lithium battery pack body. While the filter dustproof plate is filtering, the servo motor is started to drive the eccentric push block to rotate in a circle through the servo motor, so that the eccentric push block drives the reciprocating impact column on the lifting impact plate to intermittently impact the filter dustproof plate under the limit of the support limit plate, so as to prevent dust from clogging the filter dustproof plate during the dust filtering process and affecting the ventilation operation.

[0014] As can be seen from the above, the lithium battery high temperature protection structure provided by the present invention has the function of changing the air flow direction to avoid heat accumulation in a certain place inside the battery, thereby reducing heat accumulation in the battery pack and evenly dissipating the heat for the lithium battery when dissipating the heat from the battery, thereby improving the beneficial effect of heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the lithium battery high temperature protection structure proposed by the present invention;

[0016] Figure 2 A partial structural schematic diagram of the lithium battery high temperature protection structure proposed by the present invention;

[0017] Figure 3 This is a schematic diagram of the limiting scalloped frame structure of the lithium battery high temperature protection structure proposed by the present invention;

[0018] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of part A;

[0019] Figure 5 This is a schematic diagram of the structure of a lithium battery tooling protection frame proposed by the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of a tooling sealing cover plate of a lithium battery proposed by the present invention;

[0021] Figure 7 This is a schematic diagram of the structure of a ventilation module for a lithium battery proposed by the present invention;

[0022] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of part B;

[0023] Fig. 9 This is a partial structural schematic diagram of a ventilation module of a lithium battery proposed by the present invention;

[0024] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of part C.

[0025] In the figure: 1. tooling support plate; 2. tooling protection frame; 3. tooling sealing cover plate; 4. lithium battery pack body; 5. heat dissipation module; 501. serpentine circulation cooling water pipe; 502. tooling installation rod; 503. circulation connecting pipe; 504. cooling circulation box; 505. insulation frame; 506. limit cylinder; 507. adjustment screw rod; 508. tooling installation plate; 509. linkage belt; 510. driving motor; 511. tooling adjustment slide frame; 512. fixing plate; 513. U-shaped mounting seat; 514. limit spherical tooth frame; 515. rotating cylinder; 516. universal motor; 517. adjustment slide seat; 518. rotating shaft; 519. rotating push plate; 520. eccentric Push shaft; 521, rotating shaft 1; 522, adjusting push rod; 523, linkage gear; 524, temperature monitor; 525, blower fan body; 526, extrusion spring; 527, U-shaped installation long frame; 528, fitting ball; 529, adjusting rotating rod; 6, ventilation module; 601, servo motor; 602, eccentric push block; 603, spoiler installation frame; 604, ventilation blade; 605, telescopic spring; 606, filter dust plate; 607, reset spring; 608, lifting impact plate; 609, support limit plate; 610, reciprocating impact column; 611, rubber roller; 612, installation block; 613, rotating support seat; 614, electric drive rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The lithium battery high temperature protection structure disclosed in the present invention is mainly used in most of the existing high temperature protection structures, which are simple fan-type structures. Air exchange in the battery pack casing is achieved by blowing air through fan blades. However, the air flow direction of this heat dissipation method is fixed, which easily causes heat accumulation in a certain place in the casing. This defect will still cause heat accumulation in the battery pack. When the battery is cooled, the heat dissipation method is single and the incomplete heat dissipation leads to a poor heat dissipation effect.

[0028] Reference Figure 1-Figure 6The lithium battery high temperature protection structure includes a tooling support plate 1, a tooling protection frame 2 is connected to the upper side of the tooling support plate 1 by bolts, and a heat dissipation module 5 is arranged inside the tooling protection frame 2, and the heat dissipation module 5 includes a tooling mounting plate 508 and a tooling adjustment sliding frame 511, a tooling sealing cover plate 3 is connected to the upper side of the tooling protection frame 2 by bolts, a tooling mounting rod 502 is fixedly connected to the tooling support plate 1 by bolts at equal distances, and a plurality of tooling mounting rods 502 are provided with mounting circular holes 1 on the sides, and the same serpentine circulation cooling water pipe 501 is fixedly connected to the inside of the plurality of mounting circular holes 1, and the serpentine circulation cooling water pipe 501 is located inside the tooling protection frame 2.

[0029] Reference Figure 1-Figure 6 A cooling circulation box 504 is provided on the tooling support plate 1, and the water inlet end of the cooling circulation box 504 is connected to one end of the serpentine circulation cooling water pipe 501 through a circulation connecting pipe 503. Two mounting circular holes 2 are provided on both sides of the tooling protection frame 2, and the interiors of the two opposite mounting circular holes 2 are fixedly connected to the limiting cylinder 506. Smooth holes are provided on both sides of the tooling adjustment sliding frame 511, and the interiors of the two smooth holes are annularly distributed with extrusion springs 526. The other ends of multiple extrusion springs 526 on the same side are fixedly connected to the same U-shaped mounting long frame 527. Circular holes 1 are provided on both sides of the multiple U-shaped mounting long frames 527 at equal distances. The interiors of the two opposite circular holes 1 on the same U-shaped mounting long frame 527 are connected to fitting balls 528 through bearings, and the outer walls of the fitting balls 528 are against the outer walls of the limiting cylinder 506.

[0030] Reference Figure 1-Figure 6 A third mounting circular hole is provided on the tooling adjustment slide frame 511, and the interior of the third mounting circular hole is fixedly connected to a limited circular tooth frame 514. A fixing plate 512 is connected to the upper side of the tooling adjustment slide frame 511 by bolts, and a U-shaped mounting seat 513 is connected to the upper side of the fixing plate 512 by bolts. Screw holes are provided on the sides of the U-shaped mounting seat 513. Circular holes 2 are provided on both sides of the tooling protection frame 2. The interiors of the two circular holes 2 are connected to the same adjusting screw rod 507 through bearings. The adjusting screw rod 507 moves in the screw hole on the U-shaped mounting seat 513. A driving motor 510 is fixedly connected to the side of the tooling mounting plate 508. The driving end of the driving motor 510 and one end of the adjusting screw rod 507 are fixedly connected to pulleys, and the external sliding connection of the two pulleys is the same linkage belt 509.

[0031] Reference Figure 1-Figure 6A circular hole three is provided on the fixed plate 512, and a rotating cylinder 515 is connected to the inside of the circular hole three through a bearing, an adjusting rotating rod 529 is fixedly connected to the outside of the rotating cylinder 515, and two sliding grooves are provided on one side of the adjusting rotating rod 529, and the insides of the two sliding grooves are both slidably connected with an adjusting slide seat 517, and the two adjusting slide seats 517 are respectively fixedly connected with a temperature monitor 524 and a blower fan body 525 on the side facing the tooling support plate 1, and the two adjusting slide seats 517 are both provided with a circular hole four on the side facing the tooling sealing cover plate 3, and the insides of the two circular holes four are both connected with a rotating shaft 1 521 through a bearing.

[0032] Reference Figure 1-Figure 6 Two circular holes five are provided on one side of the adjusting rotating rod 529, and the interiors of the two circular holes five are connected to the rotating shaft 518 through bearings, and the exteriors of the two rotating shafts 518 are fixedly connected to the linkage gears 523, and the linkage gears 523 are meshed with the tooth block end of the limiting circular gear frame 514, and one end of the two rotating shafts 518 is fixedly connected to the rotating push plate 519.

[0033] Reference Figure 1-Figure 6 , the two rotating push plates 519 are each provided with a circular hole six at a position away from the center of the circle, the interior of the two circular holes six are connected with an eccentric push shaft 520 through a bearing, the eccentric push shaft 520 located on the same side and the outside of the rotating shaft 1 521 are movably connected with the same adjusting push rod 522, the inner side of the U-shaped mounting seat 513 is fixedly connected with a universal motor 516, the driving end of the universal motor 516 is connected to one end of the rotating cylinder 515 through a coupling, and the side of the tooling protection frame 2 is connected with the insulation frame 505 through bolts.

[0034] In a specific application scenario, when the lithium battery is in use, the cooling circulation box 504 is started, and the lithium battery in the tooling protection frame 2 is cooled by water circulation through the serpentine circulation cooling water pipe 501, and the blower fan body 525 is started to blow air to the lithium battery, so that the generated cold air is blown to the outside of the lithium battery, and the universal motor 516 is started at the same time, and the universal motor 516 drives the rotating cylinder 515 to rotate the adjusting rotating rod 529. During the rotation of the adjusting rotating rod 529, the linkage gear 523 on the adjusting rotating rod 529 rotates under the limit of the limit spherical gear frame 514, so that the linkage gear 523 drives the rotating shaft 518 to rotate the rotating push plate 519, and the adjusting push rod 522 on the rotating push plate 519 drives the adjusting slide 517 to move back and forth in the slide groove on the adjusting rotating rod 529, so that the blower fan body 525 on the adjusting slide 517 is horizontally multi-positioned to perform air blowing and cooling treatment on the lithium battery, and at the same time, the temperature monitoring meter on the adjusting slide 517 is adjusted. 524 accurately monitors the temperature of the lithium battery, thereby achieving accurate cooling of the lithium battery. At the same time, the driving motor 510 is started to drive the linkage belt 509 to rotate the adjusting screw rod 507, so that the adjusting screw rod 507 drives the tooling adjustment slide frame 511 to slide outside the limiting cylinder 506, so that the lithium battery is evenly cooled. When the tooling adjustment slide frame 511 slides outside the limiting cylinder 506, the extrusion spring 526 on the tooling adjustment slide frame 511 is pressed by its own The elasticity makes the fitting ball 528 in the U-shaped installation long frame 527 abut against the outer wall of the limiting cylinder 506, and the contact area between the fitting ball 528 and the outer wall of the limiting cylinder 506 is small, thereby reducing the friction of the tooling adjustment slide frame 511 on the limiting cylinder 506 and increasing its service life. The heat dissipation module 5 changes the direction of air flow to avoid heat accumulation in a certain place in the battery, thereby reducing heat accumulation in the battery pack. When the battery is cooled, the lithium battery is cooled evenly, thereby improving the heat dissipation effect.

[0035] It should be noted that the serpentine circulating cooling water pipe 501 is located inside the tooling protection frame 2, the outer wall of the fitting ball 528 is against the outer wall of the limiting cylinder 506, and the two adjustment slides 517 are fixedly connected with a temperature monitor 524 and a blower fan body 525 on one side facing the tooling support plate 1.

[0036] Reference Figure 1 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 A lithium battery, according to any of the above-mentioned lithium battery high temperature protection structures, also includes a lithium battery pack body 4, the lithium battery pack body 4 is arranged on the upper side of the tooling support plate 1, and a ventilation module 6 is arranged below the tooling support plate 1, and the ventilation module 6 includes a spoiler mounting frame 603.

[0037] Reference Figure 1 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 One side of the tooling support plate 1 is provided with mounting openings 1 at equal distances, and the opposite sides of the multiple mounting openings 1 are fixedly connected with telescopic springs 605, the other ends of the two telescopic springs 605 located in the same mounting opening 1 are fixedly connected with the same filtering dustproof plate 606, the opposite sides of the multiple mounting openings 1 are fixedly connected with the same supporting limiting plate 609, the sides of the multiple supporting limiting plates 609 are provided with limiting circular holes, the interiors of the multiple limiting circular holes are slidably connected with reciprocating impact columns 610, one end of the multiple reciprocating impact columns 610 is fixedly connected with the same lifting impact plate 608, the other side of the lifting impact plate 608 is fixedly connected with a reset spring 607 at equal distances, and the other end of the reset spring 607 is fixedly connected to the inner side of the spoiler mounting frame 603.

[0038] Reference Figure 1 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 The lifting impact plate 608 is provided with a second installation opening, and circular holes 7 are provided at equal distances on both sides of the second installation opening, and the interiors of the two opposite circular holes 7 are connected with rubber rollers 611 through bearings.

[0039] Reference Figure 1 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 A servo motor 601 is fixedly connected to the inner side of the spoiler mounting frame 603, and an eccentric pushing block 602 is fixedly connected to the driving end of the servo motor 601. Two mounting openings three are provided on the outer side of the spoiler mounting frame 603. The sides of the two mounting openings three are connected to ventilation blades 604 through hinges. The inner sides of the two ventilation blades 604 and the inner side of the spoiler mounting frame 603 are fixedly connected to mounting blocks 612. A circular hole eight is provided on one side of the plurality of mounting blocks 612. The interiors of the two opposite circular holes eight are connected to a rotating support seat 613 through a bearing. The opposite sides of the two rotating support seats 613 on the same side are fixedly connected to the same electric driving rod 614.

[0040] In a specific application scenario, during the use of the lithium battery pack body 4, the ventilation blade 604 is opened by starting the electric drive rod 614 to ventilate the air in the tooling protection frame 2. At this time, the filter dust plate 606 filters the incoming gas to prevent dust from entering the tooling protection frame 2 and polluting the lithium battery pack body 4. While the filter dust plate 606 is filtering, the servo motor 601 is started, and the eccentric push block 602 is driven by the servo motor 601 to rotate in a circle, so that the eccentric push block 602 drives the reciprocating impact column 610 on the lifting impact plate 608 to intermittently impact the filter dust plate 606 under the limit of the support limit plate 609, so as to prevent the filter dust plate 606 from being blocked by dust during the dust filtering process, thereby affecting the ventilation operation.

[0041] Working principle: When the lithium battery is in use, the cooling circulation box 504 is started, and the serpentine circulating cooling water pipe 501 is used to circulate and cool the lithium battery in the tooling protection frame 2, and at the same time, the blower fan body 525 is started to blow air to the lithium battery, so that the generated cold air is blown to the outside of the lithium battery, and at the same time, the universal motor 516 is started, and the universal motor 516 drives the rotating cylinder 515 to rotate the adjusting rotating rod 529. During the rotation of the adjusting rotating rod 529, the linkage gear 523 on the adjusting rotating rod 529 rotates under the limit of the limit scallop frame 514, so that the linkage gear 523 drives the rotating shaft 518 to rotate the rotating push plate 519, and the rotating push plate 519 is rotated. The adjusting push rod 522 on the plate 519 drives the adjusting slide 517 to move back and forth in the slide groove on the adjusting rotating rod 529, so that the blower fan body 525 on the adjusting slide 517 is horizontally multi-positioned to perform air blowing and cooling treatment on the lithium battery. At the same time, the temperature of the lithium battery is accurately monitored by the temperature monitoring meter 524 on the adjusting slide 517, so as to achieve accurate cooling operation on the lithium battery. At the same time, the driving motor 510 is started to drive the linkage belt 509 to rotate the adjusting screw rod 507, so that the adjusting screw rod 507 drives the tooling adjusting slide frame 511 to slide outside the limiting cylinder 506, so that the lithium battery is evenly cooled. The tooling adjusting slide frame 511 is in the limiting position. When the outer wall of the limiting cylinder 506 slides, the extrusion spring 526 on the tool adjustment slide frame 511 uses its own elasticity to make the fitting ball 528 in the U-shaped installation long frame 527 abut against the outer wall of the limiting cylinder 506. The contact area between the fitting ball 528 and the outer wall of the limiting cylinder 506 is small, thereby reducing the friction of the tool adjustment slide frame 511 on the limiting cylinder 506 and improving its service life. The heat dissipation module 5 changes the air flow direction to avoid heat accumulation in a certain place in the battery, thereby reducing the heat accumulation of the battery pack. When the battery is cooled, the lithium battery is evenly cooled to improve the heat dissipation effect. During use, the lithium battery pack body 4 starts the electric drive rod 61 4 makes the ventilation blade 604 open to ventilate the air in the tooling protection frame 2. At this time, the filter dust plate 606 filters the incoming gas to prevent dust from entering the tooling protection frame 2 and polluting the lithium battery pack body 4. While the filter dust plate 606 is filtering, the servo motor 601 is started at this time, and the servo motor 601 drives the eccentric push block 602 to rotate in a circle, so that the eccentric push block 602 drives the reciprocating impact column 610 on the lifting impact plate 608 to intermittently impact the filter dust plate 606 under the limit of the support limit plate 609, so as to prevent the filter dust plate 606 from being blocked by dust during the process of filtering dust, thereby affecting the ventilation operation.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A lithium battery high temperature protection structure, comprising a tooling support plate (1), characterized in that: The upper side of the tooling support plate (1) is connected to a tooling protection frame (2) by bolts, and a heat dissipation module (5) is arranged inside the tooling protection frame (2), and the heat dissipation module (5) includes a tooling installation plate (508) and a tooling adjustment sliding frame (511), the upper side of the tooling protection frame (2) is connected to a tooling sealing cover plate (3) by bolts, and tooling installation rods (502) are fixedly connected to the tooling support plate (1) by bolts at equal distances, and the sides of multiple tooling installation rods (502) are each provided with a mounting circular hole 1, and the inside of the multiple mounting circular holes 1 is fixedly connected with the same serpentine circulation cooling water pipe (501), and the serpentine circulation cooling water pipe (501) is located inside the tooling protection frame (2).

2. The lithium battery high temperature protection structure according to claim 1, characterized in that: A cooling circulation box (504) is arranged on the tooling support plate (1), and the water inlet end of the cooling circulation box (504) is connected to one end of the serpentine circulation cooling water pipe (501) through a circulation connecting pipe (503). Two mounting circular holes (2) are provided on both sides of the tooling protection frame (2), and the interiors of the two opposite mounting circular holes (2) are fixedly connected to a limiting cylinder (506). Smooth holes are provided on both sides of the tooling adjustment sliding frame (511), and the interiors of the two smooth holes are annularly distributed with extrusion springs (526). The other ends of multiple extrusion springs (526) located on the same side are fixedly connected to the same U-shaped mounting long frame (527). Circular holes (1) are provided on both sides of the multiple U-shaped mounting long frames (527) at equal distances, and the interiors of the two opposite circular holes (1) located on the same U-shaped mounting long frame (527) are connected to fitting balls (528) through bearings, and the outer walls of the fitting balls (528) are against the outer walls of the limiting cylinder (506).

3. The lithium battery high temperature protection structure according to claim 2, characterized in that: The tooling adjustment sliding frame (511) is provided with a third mounting circular hole, and the interior of the third mounting circular hole is fixedly connected to a limited circular tooth frame (514); the upper side of the tooling adjustment sliding frame (511) is connected to a fixing plate (512) by bolts; the upper side of the fixing plate (512) is connected to a U-shaped mounting seat (513) by bolts; screw holes are provided on the side of the U-shaped mounting seat (513); second circular holes are provided on both sides of the tooling protection frame (2); the interiors of the two second circular holes are connected to the same adjusting screw rod (507) by bearings; the adjusting screw rod (507) moves in the screw hole on the U-shaped mounting seat (513); the side of the tooling mounting plate (508) is fixedly connected to a driving motor (510); the driving end of the driving motor (510) and one end of the adjusting screw rod (507) are fixedly connected to pulleys; the exteriors of the two pulleys are slidably connected to the same linkage belt (509).

4. The lithium battery high temperature protection structure according to claim 3, characterized in that: The fixing plate (512) is provided with a circular hole three, and the interior of the circular hole three is connected to a rotating cylinder (515) via a bearing, and the exterior of the rotating cylinder (515) is fixedly connected to an adjusting rotating rod (529), and two sliding grooves are provided on one side of the adjusting rotating rod (529), and the interiors of the two sliding grooves are both slidably connected to an adjusting slide seat (517), and the two adjusting slide seats (517) are respectively fixedly connected to a temperature monitor (524) and a blower fan body (525) on the side facing the tooling support plate (1), and the two adjusting slide seats (517) are provided with a circular hole four on the side facing the tooling sealing cover plate (3), and the interiors of the two circular holes four are both connected to a rotating shaft one (521) via a bearing.

5. The lithium battery high temperature protection structure according to claim 4, characterized in that: Two circular holes five are provided on one side of the adjusting rotating rod (529), and the interiors of the two circular holes five are connected to rotating shafts (518) via bearings, and the exteriors of the two rotating shafts (518) are fixedly connected to linkage gears (523), which mesh with the tooth block end of the limiting circular tooth frame (514), and one end of the two rotating shafts (518) is fixedly connected to a rotating push plate (519).

6. The lithium battery high temperature protection structure according to claim 5, characterized in that: The two rotating push plates (519) are each provided with a circular hole six at a position away from the center of the circle, and the interior of the two circular holes six are connected to an eccentric push shaft (520) through a bearing, and the exterior of the eccentric push shaft (520) and the rotating shaft (521) located on the same side are movably connected to the same adjustment push rod (522), and the inner side of the U-shaped mounting seat (513) is fixedly connected to a universal motor (516), and the driving end of the universal motor (516) is connected to one end of the rotating cylinder (515) through a coupling, and the side of the tooling protection frame (2) is connected to a heat preservation frame (505) through bolts.

7. A lithium battery, according to any one of claims 1-6, characterized in that: It also includes a lithium battery pack body (4), wherein the lithium battery pack body (4) is arranged on the upper side of the tooling support plate (1), and a ventilation module (6) is arranged below the tooling support plate (1), and the ventilation module (6) includes a spoiler installation frame (603).

8. A lithium battery according to claim 7, characterized in that: One side of the tooling support plate (1) is provided with mounting openings 1 at equal distances, and a telescopic spring (605) is fixedly connected to the opposite side of the plurality of mounting openings 1, the other ends of the two telescopic springs (605) located in the same mounting opening 1 are fixedly connected to the same filtering dustproof plate (606), the opposite sides of the plurality of mounting openings 1 are fixedly connected to the same supporting limit plate (609), the sides of the plurality of supporting limit plates (609) are provided with limit circular holes, the interiors of the plurality of limit circular holes are slidably connected with reciprocating impact columns (610), one end of the plurality of reciprocating impact columns (610) is fixedly connected to the same lifting impact plate (608), the other side of the lifting impact plate (608) is fixedly connected with a reset spring (607) at equal distances, and the other end of the reset spring (607) is fixedly connected to the inner side of the spoiler mounting frame (603).

9. A lithium battery according to claim 8, characterized in that: The lifting impact plate (608) is provided with a second installation opening, and circular holes (7) are provided at equal distances on both sides of the second installation opening, and rubber rollers (611) are connected inside the two opposite circular holes (7) via bearings.

10. A lithium battery according to claim 9, characterized in that: The inner side of the spoiler installation frame (603) is fixedly connected to a servo motor (601), and the driving end of the servo motor (601) is fixedly connected to an eccentric push block (602). Two installation openings (3) are provided on the outer side of the spoiler installation frame (603). The sides of the two installation openings (3) are connected to ventilation blades (604) via hinges. The inner sides of the two ventilation blades (604) and the inner side of the spoiler installation frame (603) are fixedly connected to installation blocks (612). One side of the plurality of installation blocks (612) is provided with a circular hole (8). The interiors of the two opposite circular holes (8) are connected to a rotating support seat (613) via a bearing. The opposite sides of the two rotating support seats (613) on the same side are fixedly connected to the same electric drive rod (614).

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