A new energy battery with a safety protection device

By using a linked circulating cooling structure and a variable outer shell component design, the heat dissipation problem of new energy batteries under collision or overload conditions is solved, achieving rapid heat dissipation and cell protection, and reducing the risk of fire and explosion.

CN120073136BActive Publication Date: 2026-04-21NANTONG VOCATIONAL COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANTONG VOCATIONAL COLLEGE
Filing Date
2025-02-27
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing cooling structures for new energy batteries cannot quickly improve heat dissipation when subjected to collisions or overload, leading to heat accumulation and posing a risk of fire or explosion.

Method used

A linkage circulation cooling structure was designed, including a split assembly and a movable outer shell assembly. By increasing the outlet pressure of the liquid storage and pressurization tank, the coolant can be quickly spread to fill the frame and bottom plate cavity, forming an emergency heat dissipation mode. The movable frame and bottom plate reduce the damage to the battery cells caused by irregular forces.

Benefits of technology

It achieves rapid heat dissipation during battery collisions or overload use, reducing the risk of heat buildup, decreasing the possibility of fire or explosion, and protecting the battery cells from damage caused by irregular forces.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of battery cooling and protection technology, and discloses a new energy battery equipped with a safety protection device; it includes a shell assembly; an energy storage assembly; a fixing assembly; a circulation assembly; a cooling assembly; and multiple split assemblies. This invention, by installing split assemblies, allows for increased liquid flow rate and impact force on the pipe wall when the battery cell is damaged by collision or overloaded, generating a large amount of heat. This increases the pressure on the pipe wall, causing multiple long rods to be under pressure. Two steel balls compress the second spring, disengaging it from the hemispherical groove. The long rods then rotate and open on the other side of the groove, allowing coolant to quickly fill the cavity formed by the frame and base plate, creating an emergency heat dissipation mode. This solves the problem that existing radiators lack an emergency structure, making it impossible to quickly improve heat dissipation and reduce heat sources, thus preventing fires and explosions.
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Description

Technical Field

[0001] This invention belongs to the field of battery cooling and protection technology, specifically a new energy battery equipped with a safety protection device. Background Technology

[0002] New energy vehicles refer to vehicles that use unconventional vehicle fuels as a power source, such as pure electric vehicles that rely entirely on built-in batteries and electric motors for power. They integrate advanced technologies in vehicle power control and drive, forming vehicles with advanced technical principles and new technologies and structures. The batteries, which serve as energy storage units, generate heat during use. To ensure the battery's discharge capacity and safety requirements, the batteries are often cooled.

[0003] Liquid cooling is a method that uses coolant flowing through pipes inside the power battery to transfer the heat generated by the battery to the coolant, and then dissipates the heat to the outside through heat exchange. This heat dissipation method is highly efficient and can precisely control the temperature of the battery pack. However, existing cooling structures operate in fixed pipes. When the battery is impacted or overloaded, and generates a temperature far exceeding the maximum heat dissipation temperature designed for the cooler, existing radiators lack an emergency structure and cannot quickly improve the heat dissipation effect and reduce the heat source, thus posing a danger of fire and explosion. Therefore, there is an urgent need for a new energy battery equipped with safety protection devices. Summary of the Invention

[0004] The purpose of this invention is to provide a new energy battery equipped with a safety protection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a new energy battery equipped with a safety protection device, comprising a shell assembly, an energy storage assembly fixedly installed inside the shell assembly, and a linkage circulation cooling structure, which includes a fixing assembly, the fixing assembly being fixedly installed in the middle of the energy storage assembly, a circulation assembly being fixedly installed on the right side of the shell assembly, and a cooling assembly being fixedly installed at the bottom of the fixing assembly.

[0006] Multiple splitting components are fixedly installed on the outer edge of the cooling component. Each splitting component includes a circular tube with two sets of elongated slots through it. Each set of elongated slots has a hemispherical groove. Each set of elongated slots has a long rod movably hinged to one side of each set of elongated slots. Each set of elongated rods has a second spring installed through it on the side away from the hinge. Each set of second springs has steel balls elastically abutting against its upper and lower sides. All four sets of steel balls are movably engaged within the elongated rods.

[0007] Preferably, the outer shell assembly includes a frame, two base plates are fixedly installed at the bottom of the frame, and a hinge is movably hinged at the middle of the two base plates. Two fixing blocks are fixedly connected to the front and rear sides of the frame, and a top plate is fixedly installed at the top of the frame. Multiple reinforcing ribs are provided on the top of the top plate.

[0008] Preferably, the energy storage component includes two rubber strips, both of which are fixedly installed on the inner wall of the frame, and two battery cells are fixedly connected to the other side of each of the two rubber strips. The top of each set of battery cells is provided with a connection port.

[0009] Preferably, the fixing component includes a cross block, which is fixedly installed in the middle of the two sets of battery cells. A round rod is installed through the cross block in the longitudinal direction, and two first springs are elastically connected to the cross block in the transverse direction. Multiple T-rings are movably sleeved on the outer edges of the two first springs.

[0010] Preferably, both ends of the round rod are fixedly connected to the inner wall of the frame, the other ends of the two first springs are fixedly connected to the inner wall of the frame, and the plurality of T-rings are fixedly connected to the outer side of the two sets of battery cells.

[0011] Preferably, the circulation assembly includes a liquid storage and pressurization tank, which is fixedly installed on the right side of the frame, and an inlet pipe and an outlet pipe are fixedly connected to the front side of the liquid storage and pressurization tank.

[0012] Preferably, the cooling assembly includes two fixing strips, both of which are fixedly installed on the inner wall of the frame. Multiple C-shaped blocks are fixedly connected to the other side of each of the two fixing strips. A serpentine copper tube is installed through the middle of the multiple C-shaped blocks. An inlet is fixedly connected to the right side of the serpentine copper tube, and an outlet is fixedly connected to the left side of the serpentine copper tube.

[0013] Preferably, the two fixing strips are installed below the two rubber strips, the bottoms of the plurality of C-shaped blocks are fixedly connected to the base plate, the liquid inlet is fixedly connected to the liquid inlet pipe, and the liquid outlet is fixedly connected to the liquid outlet pipe.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention, by installing a splitting component, increases the liquid flow rate and impact force on the pipe wall when the battery cell is damaged by collision or overloaded, generating a large amount of heat. This increases the pressure on the pipe wall, causing multiple long rods to be under pressure. Two steel balls squeeze the second spring and move out of the hemispherical groove. The long rods rotate and open on the other side of the long groove. At this time, the coolant will quickly fill the cavity formed by the frame and the base plate, forming an emergency heat dissipation mode. This solves the problem that existing radiators lack an emergency structure, which cannot improve the heat dissipation effect and reduce the heat source in a short time, thus causing dangers such as fire and explosion.

[0016] 2. This invention, through the installation of a newly designed cross-shaped fixing component, allows the energy storage component inside the outer shell assembly to move slightly under the support of the fixing component when the bottom of the base plate is subjected to force. The rubber strips installed on both sides of the battery cell allow for flexible compression and displacement over a certain distance. Furthermore, the multiple T-rings installed on the other side of the battery cell will compress the two first springs when subjected to force. The first springs will deform under the force, but will always provide support to the battery cell through the multiple T-rings, preventing the problem that the traditional support structure can no longer fix the battery cell after impact.

[0017] 3. The present invention has a variable base plate, and the frame, base plate and top plate together form a sealed protective shell for the battery cell. The whole can be installed by two sets of fixing blocks. When the base plate comes into contact with the impact, it will bend to both sides along the hinge, allowing the entire frame to bend along the gap of the battery cell, reducing the irregular force on the battery cell when the shell components are under stress, thereby reducing the risk of damage. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a bottom view of the overall structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the energy storage component structure of the present invention;

[0021] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0022] Figure 5 This is a schematic diagram of the loop component structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the cooling component structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the splitting component structure of the present invention.

[0025] In the diagram: 1. Outer shell assembly; 2. Energy storage assembly; 3. Fixing assembly; 4. Circulation assembly; 5. Cooling assembly; 6. Split assembly; 11. Frame; 12. Base plate; 13. Hinge; 14. Fixing block; 15. Top plate; 16. Reinforcing rib; 21. Rubber strip; 22. Battery cell; 23. Connection port; 31. Cross block; 32. Round rod; 33. First spring; 34. T-ring; 41. Liquid storage and pressurization tank; 42. Liquid inlet pipe; 43. Liquid outlet pipe; 51. Fixing strip; 52. C-shaped block; 53. Serpentine copper tube; 54. Liquid inlet; 55. Liquid outlet; 61. Round tube; 62. Long groove; 63. Hemispherical groove; 64. Long rod; 65. Second spring; 66. Steel ball. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, this embodiment of the invention provides a new energy battery with a safety protection device, including a shell assembly 1, an energy storage assembly 2 fixedly installed inside the shell assembly 1, and a linkage circulation cooling structure, which includes a fixing assembly 3, the fixing assembly 3 fixedly installed in the middle of the energy storage assembly 2, a circulation assembly 4 fixedly installed on the right side of the shell assembly 1, and a cooling assembly 5 fixedly installed at the bottom of the fixing assembly 3.

[0028] Multiple split components 6 are fixedly installed on the outer edge of the cooling component 5. Each split component 6 includes a circular tube 61, through which two sets of long slots 62 are opened. Each set of long slots 62 has a hemispherical groove 63. Each set of long slots 62 has a long rod 64 movably hinged to one side. Each set of long rods 64 has a second spring 65 installed through it on the side away from the hinge. Each set of second springs 65 has steel balls 66 elastically abutting against the upper and lower sides. All four sets of steel balls 66 are movably locked inside the long rods 64.

[0029] When the battery cell 22 is damaged by collision or overloaded and generates a large amount of heat, the liquid pressure of the liquid storage and pressurization tank 41 is increased, the liquid flow rate increases, the impact force on the pipe wall increases, and the pressure on the pipe wall increases. At this time, multiple long rods 64 will be under pressure, and two steel balls 66 will squeeze the second spring 65 and move out of the snap-fit ​​of the hemispherical groove 63. The long rods 64 rotate and open on the other side of the long groove 62. At this time, the coolant will quickly fill the cavity formed by the frame 11 and the base plate 12, forming an emergency heat dissipation mode. This solves the problem that existing radiators lack an emergency structure, which cannot improve the heat dissipation effect and reduce the heat source in a short time, thus causing dangers such as fire and explosion.

[0030] The outer shell assembly 1 includes a frame 11, two base plates 12 are fixedly installed at the bottom of the frame 11, a hinge 13 is movably hinged at the middle of the two base plates 12, two fixing blocks 14 are fixedly connected to the front and rear sides of the frame 11, and a top plate 15 is fixedly installed at the top of the frame 11, with multiple reinforcing ribs 16 on the top of the top plate 15.

[0031] The frame 11, the base plate 12, and the top plate 15 together form a sealed protective shell for the battery cell 22. The whole can be installed by two sets of fixing blocks 14. When the base plate 12 comes into contact with a collision, it will bend to both sides along the hinge 13, allowing the entire frame 11 to bend along the gap of the battery cell 22, reducing the irregular force on the battery cell 22 when the shell assembly 1 is under force, thereby reducing the risk of damage.

[0032] The energy storage component 2 includes two rubber strips 21, both of which are fixedly installed on the inner wall of the frame 11. Two battery cells 22 are fixedly connected to the other side of each of the two rubber strips 21, and a connection port 23 is opened on the top of each of the two sets of battery cells 22.

[0033] Under normal temperature conditions, the battery cell 22 can be discharged through the connection port 23, and there are empty slots between the four battery cells 22.

[0034] The fixing component 3 includes a cross block 31, which is fixedly installed in the middle of the two sets of battery cells 22. A round rod 32 is installed through the cross block 31 in the longitudinal direction. Two first springs 33 are elastically connected to the cross block 31 in the transverse direction. Multiple T-rings 34 are movably sleeved on the outer edges of the two first springs 33. Both ends of the round rod 32 are fixedly connected to the inner wall of the frame 11, and the other ends of the two first springs 33 are fixedly connected to the inner wall of the frame 11. The multiple T-rings 34 are fixedly connected to the outer side of the two sets of battery cells 22.

[0035] When the bottom of the base plate 12 is subjected to force, the energy storage component 2 inside the outer casing assembly 1 will also move slightly under the support of the fixing component 3. The rubber strips 21 installed on both sides of the battery cell 22 can allow flexible compression and displacement for a certain distance. Furthermore, the multiple T-rings 34 installed on the other side of the battery cell 22 will compress the two first springs 33 when subjected to force. The first springs 33 will deform under force, but will always provide support to the battery cell 22 through the multiple T-rings 34.

[0036] The circulation component 4 includes a liquid storage and pressurization tank 41, which is fixedly installed on the right side of the frame 11. An inlet pipe 42 and an outlet pipe 43 are fixedly connected to the front side of the liquid storage and pressurization tank 41.

[0037] Under normal temperature conditions, the liquid storage and pressurization tank 41 pressurizes the liquid and enters the serpentine copper tube 53 through the liquid inlet pipe 42 and the liquid inlet 54 to dissipate heat from the battery cell 22. Under abnormally high temperature conditions, the liquid outlet pressure of the liquid storage and pressurization tank 41 is increased, the liquid flow rate increases, the impact force on the tube wall increases, the tube wall pressure increases, and the long rod 64 is rotated to open.

[0038] The cooling assembly 5 includes two fixing strips 51, both of which are fixedly installed on the inner wall of the frame 11. Multiple C-shaped blocks 52 are fixedly connected to the other side of each of the two fixing strips 51. A serpentine copper tube 53 is installed through the middle of the multiple C-shaped blocks 52. An inlet 54 is fixedly connected to the right side of the serpentine copper tube 53, and an outlet 55 is fixedly connected to the left side of the serpentine copper tube 53. The two fixing strips 51 are installed below the two rubber strips 21. The bottom of the multiple C-shaped blocks 52 is fixedly connected to the base plate 12. The inlet 54 is fixedly connected to the inlet pipe 42, and the outlet 55 is fixedly connected to the outlet pipe 43.

[0039] Coolant enters the serpentine copper pipe 53 from the storage and pressurization tank 41 through the inlet pipe 42, displaces heat, and then circulates back to the storage and pressurization tank 41 from the outlet 55 through the outlet pipe 43 for cooling and displacement. This cycle forms a heat dissipation system.

[0040] Working principle:

[0041] When using this invention, under normal temperature conditions, the battery cell 22 discharges through the connection port 23. The liquid storage and pressurization tank 41 pressurizes the liquid and enters the serpentine copper tube 53 through the liquid inlet pipe 42 and the liquid inlet 54 to dissipate heat from the battery cell 22. When the base plate 12 comes into contact with a collision during driving, it will bend to both sides along the hinge 13, allowing the entire frame 11 to bend along the gap of the battery cell 22, reducing the irregular force directly on the battery cell 22 when the outer shell assembly 1 is subjected to force, thereby reducing the risk of damage.

[0042] When the bottom of the base plate 12 is subjected to force, the energy storage component 2 inside the outer casing assembly 1 will also move slightly under the support of the fixing component 3. The rubber strips 21 installed on both sides of the battery cell 22 can allow flexible compression and displacement for a certain distance. Furthermore, the multiple T-rings 34 installed on the other side of the battery cell 22 will compress the two first springs 33 when subjected to force. The first springs 33 will deform under force, but will always provide support to the battery cell 22 through the multiple T-rings 34.

[0043] When the battery cell 22 is damaged by collision or overloaded and generates a large amount of heat, the liquid pressure of the liquid storage and pressurization tank 41 is increased, the liquid flow rate increases, the impact force on the pipe wall increases, and the pressure on the pipe wall increases. At this time, multiple long rods 64 will be under pressure, and two steel balls 66 will squeeze the second spring 65 and move out of the snap-fit ​​of the hemispherical groove 63. The long rods 64 rotate and open on the other side of the long groove 62. At this time, the coolant will quickly fill the cavity formed by the frame 11 and the base plate 12, forming an emergency heat dissipation mode.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new energy battery equipped with a safety protection device, comprising a casing assembly (1), characterized in that: An energy storage component (2) is fixedly installed inside the outer casing assembly (1), and also includes, The linkage circulation cooling structure includes a fixed component (3), which is fixedly installed in the middle of the energy storage component (2), a circulation component (4) is fixedly installed on the right side of the outer shell component (1), and a cooling component (5) is fixedly installed at the bottom of the fixed component (3). Multiple split components (6) are fixedly installed on the outer edge of the cooling component (5). Each split component (6) includes a circular tube (61) through which two sets of long slots (62) are opened. Each set of long slots (62) has a hemispherical groove (63) opened in each set of long slots (62). Each set of long slots (62) has a long rod (64) movably hinged to one side. Each set of long rods (64) has a second spring (65) installed through the side away from the hinge. Each set of second springs (65) has steel balls (66) elastically abutting against the upper and lower sides. All four sets of steel balls (66) are movably locked in the long rods (64). The outer shell assembly (1) includes a frame (11), two base plates (12) are fixedly installed at the bottom of the frame (11), and a hinge (13) is movably hinged at the middle of the two base plates (12). Two fixing blocks (14) are fixedly connected to the front and rear sides of the frame (11). A top plate (15) is fixedly installed on the top of the frame (11), and multiple reinforcing ribs (16) are opened on the top of the top plate (15). The circulation assembly (4) includes a liquid storage and pressurization tank (41), which is fixedly installed on the right side of the frame (11). An inlet pipe (42) and an outlet pipe (43) are fixedly connected to the front side of the liquid storage and pressurization tank (41).

2. A new energy battery equipped with a safety protection device according to claim 1, characterized in that: The energy storage component (2) includes two rubber strips (21), both of which are fixedly installed on the inner wall of the frame (11). Two battery cells (22) are fixedly connected to the other side of each of the two rubber strips (21), and a connection port (23) is provided on the top of each of the two sets of battery cells (22).

3. A new energy battery equipped with a safety protection device according to claim 2, characterized in that: The fixing component (3) includes a cross block (31), which is fixedly installed in the middle of the two sets of battery cells (22). A round rod (32) is installed through the cross block (31) in the longitudinal direction. Two first springs (33) are elastically connected to the cross block (31) in the transverse direction. Multiple T-rings (34) are movably sleeved on the outer edges of the two first springs (33).

4. A new energy battery equipped with a safety protection device according to claim 3, characterized in that: Both ends of the round rod (32) are fixedly connected to the inner wall of the frame (11), the other ends of the two first springs (33) are fixedly connected to the inner wall of the frame (11), and the multiple T-rings (34) are fixedly connected to the outer side of the two sets of battery cells (22).

5. A new energy battery equipped with a safety protection device according to claim 4, characterized in that: The cooling assembly (5) includes two fixing strips (51), both of which are fixedly installed on the inner wall of the frame (11). Multiple C-shaped blocks (52) are fixedly connected to the other side of each of the two fixing strips (51). A serpentine copper tube (53) is installed through the middle of the multiple C-shaped blocks (52). An inlet (54) is fixedly connected to the right side of the serpentine copper tube (53), and an outlet (55) is fixedly connected to the left side of the serpentine copper tube (53).

6. A new energy battery equipped with a safety protection device according to claim 5, characterized in that: The two fixing strips (51) are installed below the two rubber strips (21), the bottom of the multiple C-shaped blocks (52) are fixedly connected to the base plate (12), the liquid inlet (54) is fixedly connected to the liquid inlet pipe (42), and the liquid outlet (55) is fixedly connected to the liquid outlet pipe (43).

Citation Information

Patent Citations

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    CN110224200A

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