Multistage liquid cooling heat dissipation device for high-density energy storage battery pack

By employing adaptive adjustment of a multi-stage liquid cooling device and turbulence generation technology, the problem of existing battery liquid cooling systems being unable to adaptively adjust has been solved, achieving efficient heat dissipation and improved safety for the battery pack.

CN121416680BActive Publication Date: 2026-05-08HEFEI ZHONGKE BELLUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI ZHONGKE BELLUN TECH CO LTD
Filing Date
2025-11-03
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing battery liquid cooling systems cannot adaptively adjust based on the real-time thermal state of individual battery packs, leading to localized overheating, increasing the risk of battery thermal runaway, and affecting the reliability and safety of energy storage systems.

Method used

A multi-stage liquid cooling heat dissipation device is adopted, including an adaptive multi-stage heat dissipation adjustment mechanism and a turbulence generation mechanism. The battery temperature is monitored by a temperature sensor, and the width and cross-sectional area of ​​the rubber flow channel are adjusted by an electromagnet. Combined with turbulence generation technology, the flow rate and velocity of the coolant are dynamically adjusted to improve heat dissipation efficiency.

Benefits of technology

It enables real-time adjustment of coolant flow rate and velocity based on battery temperature, enhancing heat dissipation efficiency, reducing the risk of battery overheating, and improving the reliability and safety of the energy storage system.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a multistage liquid cooling heat dissipation device of high-density energy storage battery pack, relates to the technical field of battery liquid cooling heat dissipation, and comprises an energy storage mechanism, further comprises a liquid cooling mechanism connected with the energy storage mechanism, and the multistage liquid cooling heat dissipation device of the high-density energy storage battery pack has the advantages that the self-adaptive multistage heat dissipation adjusting mechanism is adopted, temperature is controlled in stages, when the temperature exceeds a threshold value, an electromagnet is started, an iron block / plate is attracted to pull both sides of a rubber flow channel, the width of the rubber flow channel is increased, the flow channel is narrowed, the wall is thinned, the contact area with the bottom of the battery is enlarged, the heat dissipation area is increased, the flow channel is narrowed to accelerate the flow speed of the cooling liquid and enhance heat exchange, the wall of the flow channel is thinned to make the cooling liquid closer to the battery, improve the utilization rate and the heat dissipation efficiency, the electromagnet plate is periodically controlled to be opened and closed by a controller through a turbulent flow generating mechanism, the magnetic plates repel each other and move away or move close to each other, the bottom wall of the rubber flow channel is shaken, the thermal boundary layer is destroyed, the cooling liquid cannot contact the top wall to affect heat exchange, turbulent flow is generated by disturbing the mixing of the cooling liquid, and the heat exchange efficiency is remarkably improved.
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Description

Technical Field

[0001] This invention relates to the field of battery liquid cooling technology, and more particularly to a multi-stage liquid cooling device for high-density energy storage battery packs. Background Technology

[0002] With the rapid development of the new energy vehicle industry, lithium-ion batteries and other secondary batteries, as core energy storage devices, have been widely used in various electric vehicles and energy storage systems. During battery charging and discharging, a large amount of heat is generated due to electrochemical reactions. Furthermore, the compact internal space of the battery module makes it difficult for this heat to dissipate quickly, leading to a sharp rise in battery pack temperature. This not only affects battery efficiency and lifespan but may also cause safety issues. Therefore, new energy vehicles are generally equipped with cooling systems to manage the heat load. Existing cooling systems mainly adopt liquid cooling: liquid cooling systems circulate coolant in dedicated channels to achieve heat exchange with the battery surface. This effectively reduces the overall temperature of the battery pack, ensuring it operates within a suitable range.

[0003] However, the existing battery liquid cooling channel structure is fixed and is usually installed at the bottom of the battery. Heat exchange is achieved by the flow of coolant inside to reduce the temperature at the bottom of the battery. However, this design cannot be adaptively adjusted according to the real-time thermal state of a single battery pack. When the temperature rises, the system lacks targeted heat dissipation capabilities, which can easily lead to local overheating, thereby increasing the risk of battery thermal runaway and affecting the reliability and safety of the entire energy storage system. Summary of the Invention

[0004] This invention proposes a multi-stage liquid cooling device for high-density energy storage battery packs to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-stage liquid cooling system for high-density energy storage battery packs, including the energy storage mechanism, also includes:

[0007] A liquid cooling mechanism connected to an energy storage mechanism includes multiple rows of cooling channels, each cooling channel including multiple rubber channels, and each of the multiple rubber channels is connected to a metal channel.

[0008] An adaptive multi-level heat dissipation adjustment mechanism, which is connected to an energy storage mechanism, includes two inclined iron blocks and two iron plates respectively fixed on both sides of a rubber flow channel. The two inclined iron blocks are symmetrically arranged. A triangular electromagnet is provided on one side of each inclined iron block, and an electromagnet block is provided on one side of each iron plate.

[0009] A turbulence generating mechanism, which is connected to an adaptive multi-stage heat dissipation adjustment mechanism, includes a magnetic plate fixed to the bottom of a rubber flow channel, and an electromagnet plate is provided on one side of the magnetic plate.

[0010] Leak detection facility, which is connected to energy storage facility.

[0011] Furthermore, the energy storage mechanism includes a base plate, and multiple rows of battery compartments are fixed to the top of the base plate;

[0012] Each row of battery compartments contains multiple batteries, and the multiple batteries form a group;

[0013] The power supply terminal of the battery is located on the side away from the base plate;

[0014] Cooling mounting ports are provided on both sides of each row of battery compartments;

[0015] Multiple temperature sensors are fixed to the bottom of the battery.

[0016] Furthermore, the liquid cooling mechanism also includes a liquid supply channel and a liquid outlet channel that are respectively connected to two rubber channels located at the edge;

[0017] The liquid supply channel and liquid outlet channel are fitted inside the cooling installation port;

[0018] One end of the liquid supply channel is connected to a liquid supply pump, the liquid supply pump is connected to a liquid storage tank, and the liquid outlet channel is connected to the liquid storage tank.

[0019] The rubber flow channel is made of flexible TPU material, and the TPU material has fibers inside. The combination of TPU and internal fibers can improve the service life of the rubber flow channel.

[0020] An I-shaped mounting bracket is fixedly fitted at the connection position between the rubber flow channel and the metal flow channel, and the top of the I-shaped mounting bracket is fixedly connected to the bottom of the battery.

[0021] The bottom of the I-shaped mounting bracket is fixedly connected to the base plate. The I-shaped mounting bracket fixes the flow channel, protects the connection position between the metal flow channel and the rubber flow channel to prevent tearing, and keeps the rubber flow channel in a horizontal state so that its top always stays in contact with the bottom of the battery during use.

[0022] Furthermore, the adaptive multi-stage heat dissipation adjustment mechanism also includes a reciprocating screw rotatably connected inside the I-shaped mounting bracket. One end of the reciprocating screw is fixed with an adjustment head, which can be a pentagonal screw head or a motor. If it is a motor, the motor is fixedly connected to the bottom of the battery. If the motor drives the reciprocating screw to rotate, the rotation of the reciprocating screw causes multiple electromagnets to adjust their positions. By adjusting the positions of the electromagnets, the expansion degree of the rubber flow channel is controlled, the cross-sectional area of ​​the flow channel is changed, and multi-stage adjustment of the liquid cooling flow rate is achieved.

[0023] Two C-shaped brackets are provided between the two reciprocating screws. Movable plates are fixed on both sides of the C-shaped brackets, and the two movable plates are respectively threaded onto the outside of the two reciprocating screws.

[0024] The two sides of the C-shaped frame are fixedly connected to triangular electromagnets, and the inner wall of the C-shaped frame is fixedly connected to an electromagnet block.

[0025] The inclined plane of the triangular electromagnet is magnetically attracted to the inclined plane of the iron block, and the electromagnet block is magnetically attracted to the iron sheet.

[0026] The bottom of the electromagnet block corresponds to the middle position of the inclined iron block, and the bottom of the triangular electromagnet corresponds to the middle position of the iron sheet. When magnetic attraction occurs, the electromagnet pulls the iron block and iron sheet to move diagonally upward. While deforming, the top of the rubber channel is always in contact with the bottom of the battery to avoid gaps.

[0027] Furthermore, the adaptive multi-stage heat dissipation adjustment mechanism also includes multiple support plates fixed between two I-shaped mounting brackets. The support plates are located at the bottom of the rubber flow channel, limiting the bottom of the rubber flow channel and preventing its deformation.

[0028] Furthermore, the turbulence generating mechanism also includes a mounting plate rotatably connected to the outside of two adjacent reciprocating screws;

[0029] The electromagnet plate is fixed inside the mounting plate;

[0030] The electromagnet plate and the magnetic plate are attracted by each other magnetically.

[0031] Furthermore, the leakage detection mechanism includes multiple rows of pipe openings on the base plate, the rubber flow channel corresponding to the pipe openings, a detection tube fixed inside the pipe opening, a humidity sensor fixed inside the detection tube, and a collection tube connected to the bottom of each row of pipe openings, with a receiving collection box outside the collection tube.

[0032] The humidity sensor acquires humidity data from the collection tube and transmits it to the controller so that leaks can be detected in a timely manner.

[0033] Furthermore, a controller is fixed to one side of the battery compartment, and the controller is electrically connected to a temperature sensor, a humidity sensor, a triangular electromagnet, an electromagnet block, and an electromagnet plate.

[0034] Compared with existing technologies, the beneficial effects of this invention are:

[0035] 1. This invention uses an adaptive multi-level heat dissipation adjustment mechanism to regulate the temperature in stages. When the temperature exceeds a threshold, an electromagnet is activated to attract an iron block / plate to pull the sides of the rubber flow channel, increasing its width, narrowing the channel, and thinning its walls. The increased width expands the contact area with the bottom of the battery, improving the heat dissipation area; the narrowed flow channel accelerates the coolant flow rate, enhancing heat exchange; and the thinned flow channel brings the coolant closer to the battery, improving utilization and heat dissipation efficiency.

[0036] 2. This invention installs a turbulence generating mechanism, which is controlled by a controller to periodically open and close the electromagnet plates, causing the magnetic plates to repel each other and move away or closer together. This pushes the bottom wall of the rubber flow channel to vibrate, breaking the thermal boundary layer and preventing the coolant from failing to contact the top wall, thus affecting heat exchange. By disturbing the mixed coolant to generate turbulence, the heat exchange efficiency can be significantly improved. Attached Figure Description

[0037] Figure 1 This is a first-view structural schematic diagram of the multi-stage liquid cooling heat dissipation device for the high-density energy storage battery pack proposed in this invention.

[0038] Figure 2 This is a second-view structural schematic diagram of the multi-stage liquid cooling heat dissipation device for the high-density energy storage battery pack proposed in this invention.

[0039] Figure 3 This is an exploded structural diagram of the multi-stage liquid cooling heat dissipation device for the high-density energy storage battery pack proposed in this invention.

[0040] Figure 4 This is a schematic diagram of the bottom structure of the multi-stage liquid cooling heat dissipation device for the high-density energy storage battery pack proposed in this invention.

[0041] Figure 5 This is an exploded first-view structural diagram of the adaptive multi-stage heat dissipation adjustment mechanism of the multi-stage liquid cooling heat dissipation device for the high-density energy storage battery pack proposed in this invention.

[0042] Figure 6 This is an exploded second-view structural diagram of the adaptive multi-stage heat dissipation adjustment mechanism of the multi-stage liquid cooling heat dissipation device for the high-density energy storage battery pack proposed in this invention.

[0043] In the diagram: 1. Energy storage mechanism; 11. Base plate; 12. Battery compartment; 13. Battery; 14. Cooling mounting port; 2. Liquid cooling mechanism; 21. Liquid supply channel; 22. Rubber channel; 23. Metal channel; 24. Liquid outlet channel; 25. I-shaped mounting bracket; 3. Adaptive multi-stage heat dissipation adjustment mechanism; 31. Inclined iron block; 32. Iron sheet; 33. Reciprocating screw; 34. Adjusting head; 35. Moving plate; 36. C-shaped frame; 37. Triangular electromagnet; 38. Electromagnet block; 39. Support plate; 4. Turbulence generation mechanism; 41. Mounting plate; 42. Electromagnet plate; 43. Magnetic plate; 5. Leakage detection mechanism; 51. Detection tube; 52. Collection tube. Detailed Implementation

[0044] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0045] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] Example: Refer to Figures 1-6 The high-density energy storage battery pack includes a multi-stage liquid cooling heat dissipation device, comprising an energy storage mechanism 1, and further comprising:

[0048] The liquid cooling mechanism 2 is connected to the energy storage mechanism 1 and includes multiple rows of cooling channels. Each cooling channel includes multiple rubber flow channels 22, and each of the multiple rubber flow channels 22 is connected to a metal flow channel 23.

[0049] An adaptive multi-level heat dissipation adjustment mechanism 3, which is connected to the energy storage mechanism 1, includes two inclined iron blocks 31 and two iron plates 32 respectively fixed on both sides of the rubber flow channel 22. The two inclined iron blocks 31 are symmetrically arranged. A triangular electromagnet 37 is provided on one side of the inclined iron block 31, and an electromagnet block 38 is provided on one side of the iron plate 32.

[0050] The turbulence generating mechanism 4 is connected to the adaptive multi-stage heat dissipation adjustment mechanism 3, and includes a magnetic plate 43 fixed at the bottom of the rubber flow channel 22, with an electromagnet plate 42 provided on one side of the magnetic plate 43.

[0051] Leakage detection unit 5 is connected to energy storage unit 1.

[0052] The energy storage mechanism 1 includes a base plate 11, and multiple rows of battery compartments 12 are fixed to the top of the base plate 11;

[0053] Each row of battery compartments 12 has multiple batteries 13 fixed inside, and the multiple batteries 13 form a group;

[0054] The power supply terminal of the battery 13 is located on the side away from the base plate 11;

[0055] Each row of battery compartments 12 has cooling mounting ports 14 on both sides;

[0056] Multiple temperature sensors are fixed to the bottom of the battery 13;

[0057] The temperature sensor continuously monitors the temperature data at the bottom of battery 13 and transmits it to the controller in real time.

[0058] The liquid cooling mechanism 2 also includes a liquid supply channel 21 and a liquid outlet channel 24 that are respectively connected to two rubber channels 22 located at the edge;

[0059] The liquid supply channel 21 and the liquid outlet channel 24 are fitted inside the cooling installation port 14;

[0060] One end of the liquid supply channel 21 is connected to a liquid supply pump, the liquid supply pump is connected to a liquid storage tank, and the liquid outlet channel 24 is connected to the liquid storage tank.

[0061] The coolant supply pump inputs coolant into multiple supply channels 21; the coolant flows through rubber channels 22 and metal channels 23. When it passes through the rubber channels 22, it exchanges heat with the bottom of the battery 13, carrying away heat and thus cooling the battery 13 to ensure its normal operation.

[0062] The rubber flow channel 22 is made of flexible TPU material, and the TPU material has fibers inside. The combination of TPU and internal fibers improves the service life of the rubber flow channel 22.

[0063] An I-shaped mounting bracket 25 is fixedly fitted at the connection position between the rubber flow channel 22 and the metal flow channel 23, and the top of the I-shaped mounting bracket 25 is fixedly connected to the bottom of the battery 13.

[0064] The bottom of the I-shaped mounting bracket 25 is fixedly connected to the base plate 11. The I-shaped mounting bracket 25 fixes the flow channel, protects the connection position of the metal flow channel 23 and the rubber flow channel 22 to prevent tearing, and keeps the rubber flow channel 22 in a horizontal state so that its top is always in contact with the bottom of the battery 13 during use.

[0065] The adaptive multi-stage heat dissipation adjustment mechanism 3 also includes a reciprocating screw 33 rotatably connected inside the I-shaped mounting bracket 25. One end of the reciprocating screw 33 is fixed with an adjustment head 34. The adjustment head 34 can be a pentagonal screw head or a motor. If it is a motor, the motor is fixedly connected to the bottom of the battery 13. If the motor drives the reciprocating screw 33 to rotate, the rotation of the reciprocating screw 33 causes multiple electromagnets to adjust their positions. By adjusting the positions of the electromagnets, the degree of expansion of the rubber flow channel 22 can be controlled, thereby changing the cross-sectional area of ​​the flow channel and realizing multi-stage adjustment of the liquid cooling flow rate.

[0066] Two C-shaped brackets 36 are provided between the two reciprocating screws 33. Movable plates 35 are fixed on both sides of the C-shaped brackets 36, and the two movable plates 35 are respectively threaded onto the outside of the two reciprocating screws 33.

[0067] The two sides of the C-shaped frame 36 are fixedly connected to the triangular electromagnet 37, and the inner wall of the C-shaped frame 36 is fixedly connected to the electromagnet block 38.

[0068] The inclined surface of the triangular electromagnet 37 is magnetically attracted to the inclined surface of the inclined iron block 31, and the electromagnet block 38 is magnetically attracted to the iron sheet 32.

[0069] The bottom of the electromagnet block 38 corresponds to the middle position of the inclined iron block 31, and the bottom of the triangular electromagnet 37 corresponds to the middle position of the iron sheet 32. When magnetic attraction occurs, the electromagnet pulls the iron block and iron sheet 32 ​​to move obliquely upward. While deforming, the top of the rubber channel 22 is always in contact with the bottom of the battery 13 to avoid gaps.

[0070] The adaptive multi-level heat dissipation adjustment mechanism 3 also includes multiple support plates 39 fixed between two I-shaped mounting brackets 25. The support plates 39 are located at the bottom of the rubber flow channel 22 and limit the bottom of the rubber flow channel 22 to prevent it from deforming.

[0071] When the temperature of a battery 13 rises abnormally, the temperature sensor transmits the data to the controller. The controller selects the control level based on the data. The adaptive multi-level heat dissipation adjustment mechanism 3 is divided into multiple cooling levels, with different levels corresponding to different temperatures. When the temperature reaches the medium temperature level, the triangular electromagnet 37 below the battery 13 is activated to generate magnetic force. The magnetic force attracts the opposite inclined iron block 31, which pulls the rubber flow channel 22 on both sides, increasing its width, narrowing the channel, and thinning the channel wall. After the rubber flow channel 22 is widened, the contact area between its top and the bottom of the battery 13 is expanded, thereby increasing the cooling heat exchange area. At the same time, the narrowing of the channel increases the flow rate of the coolant, enhancing the heat exchange efficiency. The thinning of the channel brings the coolant closer to the bottom of the battery 13, fully contacting the rubber wall, improving the coolant utilization rate and heat dissipation efficiency.

[0072] When the battery 13 reaches a high temperature, the electromagnet block 38 is activated to generate magnetic force; the magnetic force further attracts the opposing iron sheet 32, thereby further increasing the width of the rubber flow channel 22, reducing the thickness of the flow channel wall, further improving the flow rate and utilization rate of the coolant, and achieving more efficient cooling.

[0073] By installing an adaptive multi-level heat dissipation adjustment mechanism, the temperature is controlled in stages. When the temperature exceeds the threshold, the electromagnet is activated to attract the iron block / plate to pull the two sides of the rubber flow channel, which increases its width, narrows the flow channel, and thins the wall. The increased width expands the contact area with the bottom of the battery, thereby increasing the heat dissipation area; the narrowing of the flow channel accelerates the flow rate of the coolant, enhancing heat exchange; and the thinning of the flow channel brings the coolant closer to the battery, improving utilization and heat dissipation efficiency.

[0074] The turbulence generating mechanism 4 also includes a mounting plate 41 rotatably connected to the outside of two adjacent reciprocating screws 33;

[0075] The electromagnet plate 42 is fixed inside the mounting plate 41;

[0076] The electromagnet plate 42 and the magnetic plate 43 are magnetically attracted to each other.

[0077] After the width of the rubber flow channel 22 changes, the controller controls the electromagnet plate 42 to periodically start and stop. During startup, the magnetic plate 43 repels the electromagnet plate 42 and moves away; during shutdown, they move closer. This moving away and closer motion causes the bottom wall of the rubber flow channel 22 to vibrate up and down, disrupting the thermal boundary layer—the relatively static layer formed when the fluid flows tightly against the smooth pipe wall—and preventing the intermediate coolant from failing to contact the top wall, thus affecting heat exchange. The periodic disturbance of the mixed coolant generates turbulence, thereby significantly improving heat exchange efficiency.

[0078] By installing a turbulence generating mechanism, the controller periodically controls the opening and closing of the electromagnet plates, causing the plates to repel each other and move away or closer together. This pushes the bottom wall of the rubber flow channel to vibrate, breaking the thermal boundary layer and preventing the coolant from not being able to contact the top wall, thus affecting heat exchange. Turbulence is generated by disturbing the mixed coolant, which significantly improves the heat exchange efficiency.

[0079] The leakage detection mechanism 5 includes multiple rows of pipe openings on the base plate 11. The rubber flow channel 22 corresponds to the pipe opening. A detection tube 51 is fixed inside the pipe opening. A humidity sensor is fixed inside the detection tube 51. A collection tube 52 is connected to the bottom of each row of pipe openings. A receiving box is located outside the collection tube 52.

[0080] The humidity sensor acquires humidity data from the collection tube 52 and transmits it to the controller to detect leaks in a timely manner.

[0081] A controller is fixed to one side of the battery compartment 12. The controller is electrically connected to a temperature sensor, a humidity sensor, a triangular electromagnet 37, an electromagnet block 38, and an electromagnet plate 42.

[0082] Working principle:

[0083] The temperature sensor continuously monitors the temperature data at the bottom of battery 13 and transmits it to the controller in real time.

[0084] The coolant supply pump delivers coolant into multiple supply channels 21; the coolant flows through rubber channels 22 and metal channels 23. When passing through the rubber channels 22, it exchanges heat with the bottom of the battery 13, carrying away heat and thus cooling the battery 13 to ensure its normal operation.

[0085] When the temperature of a battery 13 rises abnormally, the temperature sensor transmits the data to the controller; the controller selects the control level based on the data. The adaptive multi-level heat dissipation adjustment mechanism 3 is divided into multiple cooling levels, with different levels corresponding to different temperatures. When the temperature reaches the medium temperature level, the triangular electromagnet 37 below the battery 13 is activated to generate magnetic force; the magnetic force attracts the opposing inclined iron block 31, which pulls the sides of the rubber flow channel 22, increasing its width, narrowing the channel, and thinning the channel wall. After the rubber flow channel 22 is widened, the contact area between its top and the bottom of the battery 13 is expanded, thereby increasing the cooling heat exchange area. At the same time, the narrowing of the channel increases the coolant flow rate, enhancing heat exchange efficiency; the thinning of the channel brings the coolant closer to the bottom of the battery 13, fully contacting the rubber wall, improving coolant utilization and heat dissipation efficiency.

[0086] When the battery 13 reaches a high temperature, the electromagnet block 38 is activated to generate magnetic force; the magnetic force further attracts the opposing iron sheet 32, thereby further increasing the width of the rubber flow channel 22, reducing the thickness of the flow channel wall, further improving the flow rate and utilization rate of the coolant, and achieving more efficient cooling.

[0087] After the width of the rubber flow channel 22 changes, the controller controls the electromagnet plate 42 to periodically start and stop. During startup, the magnetic plate 43 repels the electromagnet plate 42 and moves away; during shutdown, they move closer. This moving away and closer motion causes the bottom wall of the rubber flow channel 22 to vibrate up and down, disrupting the thermal boundary layer—the relatively static layer formed when the fluid flows tightly against the smooth pipe wall—and preventing the intermediate coolant from failing to contact the top wall, thus affecting heat exchange. The periodic disturbance of the mixed coolant generates turbulence, thereby significantly improving heat exchange efficiency.

[0088] After cooling down, the system adjusts the cooling level to ensure stable operation of battery 13.

[0089] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs, comprising an energy storage mechanism (1), characterized in that, Also includes: The liquid cooling mechanism (2) is connected to the energy storage mechanism (1) and includes multiple rows of cooling channels. The cooling channels include multiple rubber channels (22), and the multiple rubber channels (22) are connected to metal channels (23). When the coolant passes through the rubber channels (22), it exchanges heat with the bottom of the battery (13). An adaptive multi-level heat dissipation adjustment mechanism (3) is connected to an energy storage mechanism (1), including inclined iron blocks (31) and iron plates (32) fixed on both sides of a rubber flow channel (22). Each side of the rubber flow channel (22) is provided with two inclined iron blocks (31) and two iron plates (32). A triangular electromagnet (37) is provided on one side of the inclined iron block (31), and an electromagnet block (38) is provided on one side of the iron plate (32). The turbulence generating mechanism (4) is connected to the adaptive multi-stage heat dissipation adjustment mechanism (3), including a magnetic plate (43) fixed at the bottom of the rubber flow channel (22), and an electromagnet plate (42) is provided on one side of the magnetic plate (43). Leakage detection mechanism (5), which is connected to energy storage mechanism (1); The connection position between the rubber flow channel (22) and the metal flow channel (23) is fixedly fitted with an I-shaped mounting bracket (25), and the top of the I-shaped mounting bracket (25) is fixedly connected to the bottom of the battery (13); The adaptive multi-level heat dissipation adjustment mechanism (3) also includes a reciprocating screw (33) rotatably connected inside the I-shaped mounting bracket (25), and an adjustment head (34) is fixed at one end of the reciprocating screw (33). Two C-shaped brackets (36) are provided between the two reciprocating screws (33), and movable plates (35) are fixed on both sides of the C-shaped brackets (36). The two movable plates (35) are respectively threaded onto the outside of the two reciprocating screws (33). The two sides of the C-shaped frame (36) are fixedly connected to the triangular electromagnet (37), and the inner wall of the C-shaped frame (36) is fixedly connected to the electromagnet block (38); The inclined plane of the triangular electromagnet (37) is magnetically attracted to the inclined plane of the inclined iron block (31), and the electromagnet block (38) is magnetically attracted to the iron sheet (32).

2. The multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs according to claim 1, characterized in that, The energy storage mechanism (1) includes a base plate (11), and multiple rows of battery compartments (12) are fixed to the top of the base plate (11). Each row of battery compartments (12) has multiple batteries (13) fixed inside, and the multiple batteries (13) form a group; The power supply terminal of the battery (13) is located on the side away from the base plate (11); Cooling mounting ports (14) are provided on both sides of each row of battery compartments (12). Multiple temperature sensors are fixed to the bottom of the battery (13).

3. The multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs according to claim 2, characterized in that, The liquid cooling mechanism (2) also includes a liquid supply channel (21) and a liquid outlet channel (24) that are respectively connected to two rubber channels (22) located at the edge. The liquid supply channel (21) and the liquid outlet channel (24) are fitted inside the cooling installation port (14); One end of the liquid supply channel (21) is connected to a liquid supply pump, the liquid supply pump is connected to a liquid storage tank, and the liquid outlet channel (24) is connected to the liquid storage tank. The bottom of the I-shaped mounting bracket (25) is fixedly connected to the base plate (11).

4. The multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs according to claim 3, characterized in that, The adaptive multi-level heat dissipation adjustment mechanism (3) also includes multiple support plates (39) fixed between two I-shaped mounting brackets (25), the support plates (39) being located at the bottom of the rubber flow channel (22).

5. The multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs according to claim 4, characterized in that, The turbulence generating mechanism (4) also includes a mounting plate (41) rotatably connected to the outside of two adjacent reciprocating screws (33). The electromagnet plate (42) is fixed inside the mounting plate (41); The electromagnet plate (42) and the magnetic plate (43) are magnetically attracted to each other.

6. The multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs according to claim 5, characterized in that, The leakage detection mechanism (5) includes multiple rows of pipe openings on the base plate (11), the rubber flow channel (22) corresponds to the pipe openings, a detection tube (51) is fixed inside the pipe opening, a humidity sensor is fixed inside the detection tube (51), a collection tube (52) is connected to the bottom of each row of pipe openings, and a receiving box is connected to the outside of the collection tube (52).

7. The multi-stage liquid cooling heat dissipation device for high-density energy storage battery packs according to claim 6, characterized in that, A controller is fixed on one side of the battery compartment (12), and the controller is electrically connected to a temperature sensor, a humidity sensor, a triangular electromagnet (37), an electromagnet block (38), and an electromagnet plate (42).

Citation Information

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