A lithium battery with high impact resistance

By setting up a counteracting box and counteracting unit around the lithium battery, and using components such as pressure plates and linkage rods to change the distribution of impact force, the problem of lithium batteries being easily damaged by impacts is solved, achieving higher impact resistance and safety.

CN119852618BActive Publication Date: 2026-04-21NANJING HUAWU AUTOMATION EQUIP CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING HUAWU AUTOMATION EQUIP CO LTD
Filing Date
2025-01-07
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Lithium batteries are easily damaged by impacts during use, leading to potential dangerous situations. Current technology lacks effective impact resistance.

Method used

An offset box is set around the lithium battery. The offset box contains an offset unit, which includes a pressure plate and an offset part. By changing the position and shape of the pressure plate, the impact force is absorbed and weakened. The components such as the polyurethane layer and the linkage rod work together to reduce the impact of the collision on the lithium battery.

Benefits of technology

It effectively reduces the damage to lithium batteries from collisions, lowers the probability of danger, and improves the impact resistance of lithium batteries.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119852618B_ABST
    Figure CN119852618B_ABST
Patent Text Reader

Abstract

This invention provides a lithium battery with high impact resistance, belonging to the field of battery technology. It includes a lithium battery mounted on a base, a neutralizing box surrounding the lithium battery, and a neutralizing unit mounted on the neutralizing box. The neutralizing box is connected to the lithium battery via the neutralizing unit. The neutralizing unit includes a pressure plate for contacting the top of the lithium battery, and a recessed cavity is provided inside the lithium battery. This invention solves the problem that while lithium batteries are typically encased in a protective casing during use, they are susceptible to impact damage, potentially leading to dangerous situations and lacking effective impact protection.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of battery technology, specifically relating to a lithium battery with strong impact resistance. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as the negative electrode material and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have now become mainstream. Lithium-ion batteries can be broadly classified into two categories: lithium metal batteries and lithium-ion batteries. Lithium-ion batteries do not contain metallic lithium and are rechargeable. Rechargeable batteries offer superior safety, specific capacity, self-discharge rate, and price-performance ratio compared to lithium-ion batteries, and are generally used in electric vehicles or new energy vehicles.

[0003] Currently, lithium batteries are equipped with a protective casing during use. However, lithium batteries are susceptible to impact damage during use, which can lead to the destruction of the internal lithium batteries and cause dangerous situations. They do not have good impact resistance capabilities. Therefore, a lithium battery with strong impact resistance is proposed. Summary of the Invention

[0004] This invention provides a lithium battery with strong impact resistance. Its purpose is to solve the problem that lithium batteries are equipped with a protective casing during use, but they are susceptible to damage from impacts, which can lead to dangerous situations and provide good protection against impacts.

[0005] This invention provides a lithium battery with strong impact resistance, comprising a lithium battery mounted on a base, a counteracting box surrounding the lithium battery, a counteracting unit mounted on the counteracting box, the counteracting box being connected to the lithium battery via the counteracting unit, the counteracting unit including a pressure plate for contacting the top of the lithium battery, a housing cavity reserved inside the lithium battery, and a changing unit for changing the position of the pressure plate being mounted in the housing cavity.

[0006] By adopting the above technical solution, a countermeasure unit is installed in the countermeasure box. When the countermeasure box is bumped, the impact transferred to the lithium battery is weakened by the countermeasure unit, so that the lithium battery can be better protected.

[0007] Furthermore, the offsetting unit includes an offsetting part, the pressing plate is installed at a distance from the inner wall of the offsetting box, the offsetting part is installed between the pressing plate and the inner wall of the offsetting box to connect the pressing plate and the offsetting box, the offsetting part is used to drive the pressing plate to connect with the top contact of the lithium battery, and a polyurethane layer is installed on the side of the pressing plate closer to the lithium battery to offset and weaken the impact force released on the lithium battery.

[0008] By adopting the above technical solution, when the offset box is hit, the offset box is displaced based on the lithium battery, and the offset part is lengthened or shortened to offset the impact and reduce the damage to the lithium battery.

[0009] Furthermore, the side of the offset box furthest from the base is the upper part, and the other sidewalls are the sides. Offsetting units are installed on both the upper and sides of the lithium battery. A linkage rod is installed on the pressure plate at a 90-degree angle. A displacement groove is reserved on the inner wall of the offset box, and the linkage rod slides in the displacement groove. A placement cavity is reserved in the offset box, and the changing unit is installed in the placement cavity. The changing unit includes a connecting line, a take-up reel, and a rotating column. The take-up reel is installed near the central area of ​​the upper part and rotates in the placement cavity. The connecting line is connected to the linkage rod on the side of the offset box. The connecting line is connected to the end of the linkage rod furthest from the pressure plate. The other end of the connecting line is connected to the side of the take-up reel via the placement cavity. One end of the rotating column is connected to the head of the take-up reel, and the other end of the rotating column is installed in a position furthest from the take-up reel.

[0010] By adopting the above technical solution, during the placement of the offset box on the side of the lithium battery, the rotating column is rotated, which drives the winding reel to rotate. The rotating reel winds the connecting line around the winding reel, and the connecting line drives the linkage rod to move, thereby changing the orientation of the pressure plate and increasing the distance between the pressure plate and the lithium battery during the assembly of the offset box.

[0011] Furthermore, a storage cavity is reserved on the outer edge of the offset box. The storage cavity is installed at the end of the rotating column farther from the take-up reel. A drive column is rotatably installed in the storage cavity. A drive bar is installed at the end of the storage cavity closer to the drive column. A drive line is installed in the storage cavity and the placement cavity. One end of the drive line is connected to the end of the rotating column farther from the take-up reel. The other end of the drive line is connected to one end of the drive column via the drive bar.

[0012] By adopting the above technical solution, the drive column is rotated, and the drive column pulls the rotating column through the drive line, causing the rotating column to rotate and changing the orientation of the pressure plate.

[0013] Furthermore, a rotating bead is screwed onto the end of the linkage rod closer to the pressure plate, and the linkage rod is connected to the top of the pressure plate via the rotating bead. A pressure ring is installed on the side of the pressure plate closer to the linkage rod, and the central area of ​​the pressure ring overlaps with the central area of ​​the pressure plate. A corrective element for changing the orientation of the pressure plate is installed between the linkage rod and the pressure ring, and several of the corrective elements are installed at the same distance from the linkage rod.

[0014] By adopting the above technical solution, a rotating bead and a corrector are installed, so that the linkage rod is connected to the top of the pressure plate through the rotating bead. When the offset box encounters a collision at a random angle, the offset part on one side offsets the collision. The linkage rods on the adjacent side walls can be displaced based on the pressure plate, and the corrector is shortened or lengthened to offset the impact of the collision.

[0015] Furthermore, one end of the connecting line that connects to the pressure plate is located on the side of the pressure ring that is farther from the linkage rod, and the connecting line is connected to the pressure plate at a position closer to the base.

[0016] By adopting the above technical solution, during the displacement of the pressure plate by the connecting line, the pressure plate is driven to rotate, so that the pressure plate is in an angled shape, and the distance between the side of the pressure plate closer to the base and the lithium battery is increased, which makes it easier to place the offset box and the pressure plate on the side of the lithium battery.

[0017] Furthermore, a swing module is installed on the side of the pressure plate closer to the base. The swing module is rotatably mounted on the pressure plate. A return component for driving the swing module to rotate is installed on the pin of the swing module. The end of the connecting line closer to the pressure plate is connected to the side of the pressure ring farther from the lithium battery.

[0018] By adopting the above technical solution and installing the swing module, during the displacement of the pressure plate driven by the connecting line, and during the rotation of the pressure plate, the swing module rotates, which can make the distance between the side of the swing module closer to the base and the lithium battery larger, which is beneficial for assembly.

[0019] Furthermore, the connecting lines of several of the offset box sidewalls are connected to the sidewalls of the take-up reel, and the connecting lines are installed at the same distance around the take-up reel at the connection points on the take-up reel.

[0020] By adopting the above technical solution, during the rotation of the take-up reel, several connecting wires can be wound around the take-up reel together, thereby changing the orientation of several pressure plates together.

[0021] Furthermore, a pressure member is installed on one end of the drive column near the drive column screw joint.

[0022] By adopting the above technical solution and installing the pressing member, when the position of the rotating column needs to be changed by the drive column, one end of the drive column can be opened by squeezing the pressing member, which is beneficial to subsequent actions.

[0023] Furthermore, the side of the offset box closer to the base is installed at a distance from the base, and a blocking plate is slidably installed on the side wall of the offset box, the blocking plate being connected to the top of the base.

[0024] By adopting the above technical solution, the offset box is connected to the top of the base via the containment plate, which surrounds the distance between the offset box and the base, making the lithium battery displacement more stable.

[0025] The beneficial effects of this invention are as follows:

[0026] During an impact, the present invention, through the installation of a lithium battery, a counteracting part, and a corrective component, mitigates and reduces the impact on the lithium battery, thereby reducing the damage to the lithium battery, protecting the lithium battery, and reducing the probability of dangerous situations.

[0027] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0028] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention;

[0030] Figure 2 This is a schematic diagram of the cancelling box structure according to an embodiment of the present invention;

[0031] Figure 3 This is a schematic diagram of the drive column structure according to an embodiment of the present invention;

[0032] Figure 4 This is a partial structural schematic diagram of an embodiment of the present invention;

[0033] Figure 5 Embodiments of the present invention Figure 4 Schematic diagram of the structure of region X;

[0034] Figure 6 This is a schematic diagram of the modified unit structure according to an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the swing module structure according to an embodiment of the present invention;

[0036] Reference numerals: 112, base; 12, lithium battery; 13, offset box; 132, displacement trench; 133, placement cavity; 134, storage cavity; 1342, drive bar; 14, offset unit; 142, pressure plate; 143, offset part; 15, linkage rod; 152, rotating bead; 153, fixing plate; 16, changing unit; 162, connecting line; 163, reel; 164, rotating column; 17, drive column; 172, drive line; 173, pressure component; 18, pressure ring; 182, straightening component; 19, swing module; 192, return component; 193, constraint plate one; 194, constraint plate two; 120, containment plate. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0038] Reference Figure 1-7 This invention provides a lithium battery with strong impact resistance, comprising a lithium battery 12 mounted on a base 112, an offset box 13 mounted around the lithium battery 12, a distance between the offset box 13 and the lithium battery 12, an offset unit 14 mounted on the offset box 13, and the offset box 13 connected to the lithium battery 12 via the offset unit 14. During the period when the lithium battery 12 is subjected to impacts from the surrounding environment, the offset box 13 and the offset unit 14 provide protection for it.

[0039] The offset box 13 has a square structure, with the side closer to the base 112 being open. The offset box 13 is mounted on the lithium battery 12 through the open portion. Several offset units 14 are mounted thereon, each of which is adapted to fit several inner walls of the offset box 13. Each offset unit 14 includes a pressure plate 142 and an offset part 143. The offset part 143 can be made of spiral beryllium copper wire. One end of the spiral beryllium copper wire is connected to the inner wall of the offset box 13, and the other end of the spiral beryllium copper wire is connected to the pressure plate 142. There is a distance between the pressure plate 142 and the inner wall of the offset box 13. The end of the pressure plate 142 farther from the offset part 143 is in contact with the top surface of the wall of the lithium battery 12. In the initial stage, the spiral beryllium copper wire is in a compressed and shortened state. The pressure plate 142 is in contact with the wall of the lithium battery 12 due to the spiral beryllium copper wire. During the impact of the surroundings, a pressure impulse is generated and released on the offset box 13. The offset box 13 is displaced due to the impact. Through the change of the spiral beryllium copper wire, the force transferred to the lithium battery 12 is weakened, the impulse borne by the lithium battery 12 is weakened, and the lithium battery 12 is protected.

[0040] A polyurethane layer is installed on the side of the pressure plate 142 closer to the lithium battery 12. The pressure plate 142 is connected to the lithium battery 12 via the polyurethane layer, which can further weaken the force transmitted to the lithium battery 12 when it is hit. The pressure plate 142 is installed facing the inner wall of the adjacent offset box 13 and is spaced apart. A linkage rod 15 is installed on the pressure plate 142 at a 90-degree angle to the pressure plate 142. A displacement channel 132 is reserved on the offset box 13. The end of the linkage rod 15 further from the pressure plate 142 extends into the displacement channel 132 and slides along the 90-degree angle to the pressure plate 142 within the displacement channel 132. A fixing plate 153 is reserved on the linkage rod 15. A spiral beryllium copper wire is installed on the side of the linkage rod 15, with one end connected to the inner wall of the offset box 13 and the other end connected to the fixing plate 153. A placement cavity 133 is reserved in the offset box 13, and a changing unit 16 for changing the position of the linkage rod 15 is installed in the placement cavity 133. By changing the position of the linkage rod 15 through the changing unit 16, the position of the pressure plate 142 is changed, thereby increasing the span between the pressure plate 142 and the lithium battery 12, which makes it easier to install the offset box 13 and the pressure plate 142 on the side of the lithium battery 12.

[0041] The side of the offset box 13 furthest from the base 112 is the upper part, and the other side walls are the sides. The alteration unit 16 includes a connecting line 162, a take-up reel 163, and a rotating column 164. The take-up reel 163 is installed near the central area of ​​the upper part and rotates within the mounting cavity 133. The rotation center line of the take-up reel 163 is at a 90-degree angle to the upper part. One end of the connecting line 162 is connected to the end of the linkage rod 15 furthest from the pressure plate 142. The other end of the connecting line 162 extends to the upper part through the mounting cavity 133 and is connected to the take-up reel 163. One end of the rotating column 164 is connected to the head of the take-up reel 163. Connected to the rotating column 164, the other end is positioned further away from the take-up reel 163. Rotating the rotating column 164 drives the take-up reel 163 to rotate, winding the connecting wire 162 onto the reel 163. The connecting wire 162 drives the linkage rod 15 to shift, which in turn drives the pressure plate 142 to shift towards the inner wall of the offset box 13. This facilitates the placement of the offset box 13, with the pressure plate 142 positioned beside the lithium battery 12. Afterward, the rotating column 164 can be released, and the pressure plate 142 returns to its initial position due to the offset section 143, thus constraining the offset box 13. A guide spool is installed at the corner of the connecting wire 162, changing the placement position of the connecting wire 162 within the mounting cavity 133 and reducing the contact resistance between the connecting wire 162 and the inner wall of the mounting cavity 133.

[0042] Several connecting wires 162 are connected to the take-up reel 163 at the ends further away from the linkage bar 15. The connecting wires 162 are connected to the linkage bar 15 in the side wall. The areas where the several connecting wires 162 are connected on the take-up reel 163 are all installed at the same distance. During the rotation of the take-up reel 163, the several connecting wires 162 are wrapped around the take-up reel 163 together, thereby changing the position of the several pressure plates 142 together.

[0043] To facilitate the rotation of the rotating column 164, a storage cavity 134 is reserved on the outer edge of the offset box 13. The storage cavity 134 is connected to the placement cavity 133. The storage cavity 134 is installed at the end of the rotating column 164 that is farther from the take-up reel 163. A drive column 17 is rotated and installed in the storage cavity 134. One end of the drive column 17 is rotated and installed in the storage cavity 134. A drive bar 1342 is installed at the end of the storage cavity 134 that is closer to the drive column 17. A drive line 172 is installed in the storage cavity 134 and the placement cavity 133. One end of the drive line 172 is connected to the end of the rotating column 164 that is farther from the take-up reel 163. The other end of the drive line 172 is connected to one end of the drive column 17 via the drive bar 1342. Initially, the pressure plate 142 contacts the outer wall of the lithium battery 12, and the drive column 17 contacts the inner wall of the storage cavity 134. When it is necessary to change the position of the pressure plate 142, the drive column 17 is rotated. The drive column 17 drives the rotating column 164 to rotate via the drive line 172, thereby changing the position of the pressure plate 142. A pressure member 173 is mounted on the drive column 17. By driving the pressure member 173 into the storage cavity 134, the end of the drive column 17 further away from the rotation point can be opened, thus facilitating the rotation of the drive column 17.

[0044] The side of the offset box 13 that is closer to the base 112 is installed at a distance from the base 112. The side of the lithium battery 12 that is closer to the base 112 is equipped with a blocking plate 120. The blocking plate 120 is slidably installed outside the lithium battery 12. The side of the blocking plate 120 that is farther from the offset box 13 is in contact with the top of the base 112.

[0045] The end of the linkage rod 15 closer to the pressure plate 142 is connected to the rotating bead 152. The linkage rod 15 is connected to the pressure plate 142 via the rotating bead 152. A pressure ring 18 is installed on the side of the pressure plate 142 closer to the linkage rod 15. Several straightening elements 182 are installed on the sidewall of the linkage rod 15. The straightening elements 182 are spiral beryllium copper wires. One end of the spiral beryllium copper wire is connected to the linkage rod 15, and the other end of the spiral beryllium copper wire is connected to the pressure ring 18. Several spiral beryllium copper wires are installed around the linkage rod 15 at the same distance, that is, several spiral beryllium copper wires are installed at a ninety-degree angle to the linkage rod 15. By installing several spiral beryllium copper wires and rotating beads 152, when the upper side of the offset box 13 is hit by the base 112, the offset part 143 installed on the upper part tightens and shortens, which can offset and weaken the impact. The side linkage rod 15 is displaced based on the pressure plate 142 due to the rotating beads 152. When hit by any direction, the linkage rods 15 that are close to each other can be displaced based on the pressure plate 142, reducing the situation where the side linkage rods 15 and pressure plate 142 hinder the displacement of the offset box 13, making the offset impact action more stable.

[0046] The central area of ​​the compression ring 18 overlaps with the central area of ​​the compression plate 142, which is the initial stage. Several spiral beryllium copper wires are installed around the central area of ​​the compression plate 142 and the drive column 17 at the same distance. The rotating bead 152 is fitted to the central area of ​​the compression plate 142. The end of the connecting line 162 connected to the compression plate 142 is installed on the side of the compression ring 18 further away from the linkage rod 15. The connection between the connecting line 162 and the compression plate 142 is installed between the compression ring 18 and the base 112. During the repositioning of the pressure plate 142 via the connecting line 162, since the connecting line 162 is not in the central area of ​​the pressure plate 142 at the point where the pressure plate 142 exerts force, that is, the driving point, during the displacement of the pressure plate 142, it can drive the side of the pressure plate 142 closer to the base 112 to be installed at an angle along the side farther from the lithium battery 12. This allows the distance between the side of the pressure plate 142 and the base 112 and the lithium battery 12 to be greater, which is beneficial for installing the offset box 13 around the lithium battery 12 during assembly.

[0047] A swing module 19 is mounted on the side of the pressure plate 142 closer to the base 112. The swing module 19 is rotatably mounted on the pressure plate 142. A return member 192 is mounted on the pin of the swing module 19. A spiral beryllium copper wire X is mounted on the return member 192. The spiral beryllium copper wire X can generate opposite torque when it rotates and deforms and recovers. One end of the spiral beryllium copper wire X is connected to the pressure plate 142, and the other end of the pressure plate 142 is connected to the pin of the swing module 19. One end of the connecting wire 162 is connected to the side of the swing module 19 farther from the lithium battery 12. A constraint plate 193 is installed on the swing module 19, and a constraint plate 194 is installed on the pressure plate 142. The constraint plate 193 and the constraint plate 194 are respectively installed on both sides of the swing module 19. The constraint plate 194 is installed on the pressure plate 142 in a position closer to the swing module 19. When the swing module 19 rotates to various positions, it is in contact with the top of the pressure plate 142. In the initial stage, the constraint plate 193 is in contact with the top of the pressure plate 142, and the swing module 19 and the pressure plate 142 are on the same surface. After the swing module 19 rotates one full circle at a specific angle, the constraint plate 194 is in contact with the top of the swing module 19. During the rotation of the pressure plate 142 driven by the connecting line 162, the swing module 19 is initially driven to rotate until the constraint plate 194 is in contact with the top of the swing module 19. Then the connecting line 162 is driven to rotate the pressure plate 142 and change the position of the pressure plate 142. During the rotation of the connecting line 162, the swing module 19 is driven to rotate. After rotation, the swing module 19 forms a guide wall, which facilitates the installation of the offset box 13 on the periphery of the lithium battery 12.

[0048] The specific implementation method is as follows: By installing a pressure plate 142 and a counteracting part 143 in the counteracting box 13, when the lithium battery 12 is subjected to an impact from the surrounding environment, the impact is released onto the counteracting box 13. During the displacement of the counteracting box 13, the counteracting part 143 in each area becomes longer or shorter, thereby counteracting and weakening the impact released onto the lithium battery 12, reducing the damage that the lithium battery 12 may suffer, protecting the lithium battery 12, and reducing the probability of dangerous situations occurring.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A lithium battery with high impact resistance, comprising a lithium battery (12) mounted on a base (112), characterized in that, A counteracting box (13) is installed around the lithium battery (12), and a counteracting unit (14) is installed on the counteracting box (13). The counteracting box (13) is connected to the lithium battery (12) via the counteracting unit (14). The counteracting unit (14) includes a pressure plate (142) for contacting the top of the lithium battery (12). A placement cavity (133) is reserved inside the lithium battery (12), and a changing unit (16) for changing the position of the pressure plate (142) is installed in the placement cavity (133). The offset unit (14) includes an offset part (143). The pressure plate (142) is installed at a distance from the inner wall of the offset box (13). The offset part (143) is installed between the pressure plate (142) and the inner wall of the offset box (13) to connect the pressure plate (142) and the offset box (13). The offset part (143) is used to drive the pressure plate (142) to contact the top of the lithium battery (12). A polyurethane layer is installed on the side of the pressure plate (142) closer to the lithium battery (12) to offset and weaken the impact force released on the lithium battery (12). The side of the offset box (13) furthest from the base (112) is the upper part, and the other side walls are the sides. Offset units (14) are installed on both the upper part and the sides of the lithium battery (12). A linkage rod (15) is installed on the pressure plate (142) at a 90-degree angle. A displacement groove (132) is reserved on the inner wall of the offset box (13). The linkage rod (15) slides in the displacement groove (132). A placement cavity (133) is reserved in the offset box (13). The changing unit (16) is installed in the placement cavity (133). The changing unit (16) includes a connecting wire (162). A take-up reel (163) and a rotating column (164) are provided. The take-up reel (163) is installed near the upper central area and rotates within the mounting cavity (133). A connecting line (162) is connected to a linkage rod (15) on the edge of the offset box (13). The connecting line (162) and the linkage rod (15) are connected at the end farther from the pressure plate (142). The other end of the connecting line (162) is connected to the edge of the take-up reel (163) via the mounting cavity (133). One end of the rotating column (164) is connected to the head of the take-up reel (163), and the other end of the rotating column (164) is installed in a direction farther from the take-up reel (163). The linkage rod (15) is connected to the rotating bead (152) at the end closer to the pressure plate (142). The linkage rod (15) is connected to the pressure plate (142) via the rotating bead (152). A pressure ring (18) is installed on the side of the pressure plate (142) closer to the linkage rod (15). The central area of ​​the pressure ring (18) overlaps with the central area of ​​the pressure plate (142). A corrective element (182) for changing the position of the pressure plate (142) is installed between the linkage rod (15) and the pressure ring (18). Several corrective elements (182) are installed around the linkage rod (15) at the same distance.

2. The lithium battery with high impact resistance according to claim 1, characterized in that: The outer edge of the offset box (13) has a storage cavity (134) reserved. The storage cavity (134) is installed at the end of the rotating column (164) further away from the take-up reel (163). The drive column (17) is rotated in the storage cavity (134). The drive bar (1342) is installed at the end of the storage cavity (134) closer to the drive column (17). The drive line (172) is installed in the storage cavity (134) and the placement cavity (133). One end of the drive line (172) is connected to the end of the rotating column (164) further away from the take-up reel (163). The other end of the drive line (172) is connected to one end of the drive column (17) via the drive bar (1342).

3. A lithium battery with high impact resistance according to claim 1, characterized in that: One end of the connecting line (162) connected to the pressure plate (142) is located on the side of the pressure ring (18) further away from the linkage rod (15), and the connecting line (162) is connected to the pressure plate (142) at a position closer to the base (112).

4. A lithium battery with high impact resistance according to claim 3, characterized in that: A swing module (19) is mounted on the side of the pressure plate (142) closer to the base (112). The swing module (19) is rotatably mounted on the pressure plate (142). A return member (192) for driving the swing module (19) to rotate is mounted on the pin of the swing module (19). The end of the connecting line (162) closer to the pressure plate (142) is connected to the side of the pressure ring (18) farther from the lithium battery (12).

5. A lithium battery with high impact resistance according to claim 1, characterized in that: The connecting lines (162) of several of the sidewalls of the offset box (13) are connected to the sidewall of the take-up reel (163), and the connecting lines (162) are installed at the same distance around the take-up reel (163) at the connection points on the take-up reel (163).

6. A lithium battery with high impact resistance according to claim 2, characterized in that: A pressure member (173) is installed on one end of the drive column (17) near the screw joint of the drive column (17).

7. A lithium battery with high impact resistance according to claim 1, characterized in that: The offset box (13) is installed at a distance from the base (112) on the side closer to the base (112). A blocking plate (120) is slidably installed on the side wall of the offset box (13), and the blocking plate (120) is in contact with the top of the base (112).

Citation Information

Patent Citations

  • Battery tank for lithium ion power battery

    CN219040632U

  • Battery

    JP2013134900A