A hybrid heat dissipation system for a supercapacitor module

Abstract

A hybrid heat dissipation system for a supercapacitor module belongs to the field of energy storage and electricity storage technology. It includes a supercapacitor unit and a heat exchange unit. The outer side of the supercapacitor unit is covered with a shell. The supercapacitor unit includes a group of cylindrical supercapacitor units and heat exchange plates. The heat exchange plates are arranged at the bottom of the shell. The heat exchange unit includes a heat exchanger, a radiator and an oil pump. The heat exchanger is arranged inside the supercapacitor unit. The heat exchanger is connected to the radiator and the oil pump through a pipeline to form a circulating cooling loop. The shell is hinged on the air-cooled base through a rotating shaft, and an air-cooled channel is formed between the shell and the air-cooled base. The present invention uses a hybrid heat dissipation technology of air cooling and oil cooling to dissipate heat from the supercapacitor module, while providing a closed and stable working environment for the supercapacitor module. The heat exchange medium does not directly contact the supercapacitor, thereby improving the heat exchange efficiency while ensuring the working stability of the supercapacitor and ensuring its safe operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of energy and electricity storage, and in particular relates to a supercapacitor module hybrid heat dissipation system. Background Art

[0002] Supercapacitors are energy storage devices capable of rapidly storing and releasing electrical energy. They are a special type of capacitor that charges and discharges at the electrode / electrolyte interface based on high-surface-area materials such as porous carbon and some metal oxides. Based on the storage principle, there are three types: electric double-layer capacitors (EDLCs), pseudocapacitors, and hybrid capacitors. EDLCs store electrical energy electrostatically through charge separation in the Helmholtz double layer, located at the interface between the conductive electrode surface and the electrolyte solution. The charge separation in the double layer is approximately 0.3-0.8 nm and is electrostatic. Pseudocapacitors store electrical energy electrochemically, through redox reactions, electrosorption, or intercalation reactions of specifically adsorbed ions on the electrode surface, resulting in reversible Faradaic charge transfer. Hybrid capacitors, such as lithium-ion capacitors, have asymmetric electrodes: one exhibits primary electrostatic capacitance, while the other exhibits electrochemical capacitance.

[0003] Supercapacitors combine the advantages of traditional electrostatic capacitors and batteries. They share a similar energy storage principle, but their electrodes contain a larger effective surface area and thinner electrolytes, resulting in increased capacitance and energy. Compared to batteries, they offer advantages such as higher specific power, shorter charge and discharge times, and higher cycle life and efficiency. These advantages have led to their widespread use in electric vehicle start-stop systems, energy recovery, and energy stabilization for renewable energy generation.

[0004] In the application of supercapacitors, due to the frequent instantaneous high-power charging and discharging, a large amount of heat is generated during operation. Therefore, in the research of supercapacitors, heat dissipation research is a top priority. Supercapacitors generate heat and heat up during operation. It is necessary to quantify this heat to determine whether the temperature rise is tolerable or whether it should be cooled with the help of a cooling system. Temperature is the biggest factor affecting the life of supercapacitors and threatening the safety of supercapacitors. In a long-term high-temperature working environment, the supercapacitor electrode material will detach and agglomerate, leading to failure, seriously affecting the cycle life of the supercapacitor and even threatening the safe operation of the supercapacitor. Especially when using new energy storage, the highly fluctuating charging characteristics require supercapacitors to have an efficient heat dissipation solution to ensure the safety of the supercapacitor during operation. Summary of the Invention

[0005] In view of the above problems existing in the prior art, the purpose of the present invention is to provide a hybrid heat dissipation system for supercapacitor modules, which can combine air cooling and liquid cooling to ensure the safe operation of supercapacitors.

[0006] The present invention provides the following technical solutions:

[0007] A supercapacitor module hybrid heat dissipation system includes a supercapacitor unit and a heat exchange unit. The supercapacitor unit is covered with a shell. The supercapacitor unit includes a group of evenly arranged cylindrical supercapacitor units and heat exchange fins. The heat exchange fins are arranged at the bottom of the shell. The heat exchange unit includes a heat exchange element, a radiator and an oil pump. The heat exchange element is arranged inside the supercapacitor unit and is connected to the radiator and the oil pump through pipelines to form a circulating cooling loop. The shell is hinged to an air-cooled base by a rotating shaft, and an air-cooling channel for air-cooling the supercapacitor unit is formed between the shell and the air-cooled base.

[0008] Furthermore, a group of mounting grooves are provided at the bottom of the shell, and a group of heat exchange fins are embedded in the mounting grooves in a one-to-one correspondence.

[0009] Furthermore, one side of the heat exchange plate contacts the bottom of the supercapacitor unit, and the other side contacts the air space.

[0010] Furthermore, the heat exchange component includes a group of heat exchange fins for increasing the heat dissipation area of the columnar supercapacitor unit and a group of heat exchange tubes for exchanging heat with the columnar supercapacitor unit and the heat exchange fins; the two ends of the heat exchange tubes are respectively connected to the radiator and the oil pump through pipelines.

[0011] Furthermore, a group of heat exchange fins are arranged at intervals along the longitudinal direction between the columnar supercapacitor units, and a group of heat exchange tubes are arranged at intervals along the vertical direction and pass through the heat exchange fins.

[0012] Furthermore, the air-cooling base includes an air-cooling base bottom plate and hinge plates arranged on both sides of the air-cooling base bottom plate, and an air-cooling channel is formed between the air-cooling base bottom plate and the bottom of the shell.

[0013] Furthermore, the bottom of the shell is wrapped with buffer rubber.

[0014] By adopting the above technology, compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The present invention utilizes a hybrid heat dissipation technology of air cooling and oil cooling to dissipate heat from the supercapacitor module, while providing a closed and stable working environment for the supercapacitor module. The heat exchange medium does not come into direct contact with the supercapacitor, thereby improving the heat exchange efficiency while ensuring the working stability of the supercapacitor and ensuring its safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 Schematic diagram of the internal structure of the present invention;

[0018] Figure 3 Schematic diagram of the structure of the heat exchange unit of the present invention;

[0019] Figure 4 Schematic diagram of the structure of the supercapacitor unit of the present invention;

[0020] Figure 5 This is a schematic diagram of the installation structure of the supercapacitor unit and the air-cooling base of the present invention. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0022] On the contrary, the present invention covers any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention as defined by the claims. Furthermore, to facilitate a better understanding of the present invention, certain specific details are described in detail below in the detailed description of the present invention. Those skilled in the art will be able to fully understand the present invention without these details.

[0023] See also Figure 1-5 A supercapacitor module hybrid heat dissipation system includes a supercapacitor unit and a heat exchange unit. The supercapacitor unit can be rotatably arranged on an air-cooled base 4, and the heat exchange unit is used to dissipate heat for the supercapacitor unit.

[0024] Specifically, the supercapacitor unit is covered by the housing 1, and the supercapacitor unit includes a group of columnar supercapacitor units 5 arranged in a 3×6 pattern;

[0025] The bottom of the housing 1 is provided with a set of mounting grooves, each of which is fitted with a heat exchanger 10. The heat exchanger 10 is embedded in the mounting groove to ensure its sealing. One side of the heat exchanger 10 contacts the bottom of the supercapacitor unit 5, and the other side contacts the air space. The heat exchanger 10 is made of a high-efficiency vertical thermal conductive silicone sheet. The bottom of the housing 1 is wrapped with cushioning rubber 13.

[0026] The air-cooling base 4 includes an air-cooling base bottom plate 15 and hinged plates arranged on both sides of the air-cooling base bottom plate 15. The shell 1 can be rotatably arranged on the hinged plates of the air-cooling base 4 through the rotating shaft 14. An air-cooling channel is formed between the air-cooling base bottom plate 15 and the bottom of the shell 1; the dynamic air enters from the air-cooling base 4 and conducts heat exchange with the heat exchange plate 10 at the bottom of the supercapacitor, which not only improves the heat exchange efficiency but also ensures the sealing of the supercapacitor module.

[0027] Specifically, the heat exchange unit includes a heat exchange tube 6, a heat exchange fin 9, a radiator 2 and an oil pump 3; five copper heat exchange fins 9 are arranged at intervals between the columnar supercapacitor unit 5 array to increase the heat dissipation area of the columnar supercapacitor unit 5; three heat exchange tubes 6 are arranged at intervals in the vertical direction and pass through the heat exchange fins 9 to exchange heat with the columnar supercapacitor unit 5 and the heat exchange fins 9.

[0028] Specifically, one end of the radiator 2 is connected to one end of the outlet pipe 7, and the other end is connected to one end of the oil pump 3 through a pipe. The other end of the oil pump 3 is connected to one end of the inlet pipe 8. The other ends of the outlet pipe 7 and the inlet pipe 8 are respectively connected to the two ends of the heat exchange tube 6, and the connection points are respectively provided with a first one-way valve 11 and a second one-way valve 12.

[0029] The oil cooling working principle of the system of the present invention is as follows:

[0030] When the supercapacitor unit is working, the oil pump 3 pumps the cooling oil into the heat exchange tube 6 in the housing 1 through the inlet pipe 8 and the second one-way valve 12; the supercapacitor unit fully exchanges heat with the copper heat exchange fins 9, and the heat exchange fins 9 exchange heat with the cooling oil in the heat exchange tube 6; the cooling oil after absorbing heat and heating flows into the radiator 2 through the one-way valve 11 and the outlet pipe 7, and completes the cycle after being fully cooled by heat exchange with the air in the radiator 2.

[0031] The air cooling working principle of the system of the present invention is as follows:

[0032] When the supercapacitor unit is operating, flowing air enters through the four ports of the air-cooled base and conducts heat exchange with the heat exchange plate 10 at the bottom of the supercapacitor unit. The heat exchange plate 10 uses a high-efficiency vertical thermal conductive silicone sheet, which not only improves heat exchange efficiency but also ensures the sealing of the supercapacitor unit. When the air flow rate is low, one end of the supercapacitor unit contacts the bottom plate 15 of the air-cooled base, increasing the windward area to improve heat exchange efficiency. When the air flow rate is high, the end of the supercapacitor unit is lifted by the upward force, ensuring the air flow rate to increase the heat exchange rate. The greater the air flow rate, the more relative parallel the supercapacitor unit and the bottom plate 15 of the air-cooled base, the closer the air between them is to laminar flow, the smaller the motion resistance, the greater the air flow per unit time, and the greater the heat exchange rate. Users can use a blower for forced convection heat exchange or natural convection heat exchange.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A supercapacitor module hybrid heat dissipation system, characterized by: The supercapacitor unit comprises a supercapacitor unit and a heat exchange unit. The supercapacitor unit is covered with a shell. The supercapacitor unit comprises a group of evenly arranged cylindrical supercapacitor units and heat exchange fins. The heat exchange fins are arranged at the bottom of the shell. The heat exchange unit comprises a heat exchange element, a radiator and an oil pump. The heat exchange element is arranged inside the supercapacitor unit and is connected to the radiator and the oil pump through pipes to form a circulating cooling loop. The shell is hinged to the air-cooling base through a rotating shaft. An air-cooling channel for air-cooling the supercapacitor unit is formed between the shell and the air-cooling base. The bottom of the housing is provided with a set of mounting grooves, and a set of heat exchange fins are correspondingly embedded in the mounting grooves; The heat exchange element includes a set of heat exchange fins for increasing the heat dissipation area of the column supercapacitor unit and a set of heat exchange tubes for exchanging heat with the column supercapacitor unit and the heat exchange fins; the two ends of the heat exchange tubes are respectively connected to the radiator and the oil pump through pipelines; The air-cooling base comprises an air-cooling base bottom plate and hinge plates arranged on both sides of the air-cooling base bottom plate, and an air-cooling channel is formed between the air-cooling base bottom plate and the bottom of the shell.

2. A supercapacitor module hybrid heat dissipation system according to claim 1, characterized in that One side of the heat exchange plate contacts the bottom of the supercapacitor unit, and the other side contacts the air space.

3. A supercapacitor module hybrid heat dissipation system according to claim 2, characterized in that A group of heat exchange fins are arranged at intervals along the longitudinal direction between the columnar supercapacitor units, and a group of heat exchange tubes are arranged at intervals along the vertical direction and pass through the heat exchange fins.

4. The supercapacitor module hybrid heat dissipation system according to claim 1, characterized in that The bottom of the shell is wrapped with buffer rubber all around.

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