CN-224218140-U - Super capacitor module based on independent power supply

Abstract

The utility model provides an independent power supply-based super capacitor module which comprises a shell, a charging circuit, a super capacitor, a Boost circuit and a control circuit, wherein the super capacitor, the charging circuit, the Boost circuit and the control circuit are all arranged in the shell, the super capacitor is composed of at least one 5F super capacitor unit, the input side of the Boost circuit is connected with the super capacitor, the control circuit is integrated with a switch capacitor circuit, the voltage of the super capacitor unit is monitored and balanced in real time, the balance precision is realized, the charging circuit comprises a constant current charging module and an overvoltage protection unit, and the problems of short cycle life, poor low-temperature performance and complex structure of a traditional lithium battery scheme are solved through a modularized energy storage architecture.

Inventors

• HUANG JIAXIN
• Su Yangkun
• WANG WENQI
• CHEN WEIPEI
• ZHU FENG

Assignees

• 广东樱井科技有限公司

Dates

Publication Date

20260508

Application Date

20250514

Claims (8)

1. 1. The super capacitor module based on independent power supply is characterized by comprising a shell, a charging circuit, a super capacitor, a Boost circuit and a control circuit, wherein the super capacitor, the charging circuit, the Boost circuit and the control circuit are all arranged in the shell, the super capacitor is composed of at least one 5F super capacitor unit, the input side of the Boost circuit is connected with the super capacitor, the control circuit integrates a switch capacitor circuit, monitors and balances the voltage of the super capacitor unit in real time, balances the precision, and the charging circuit comprises a constant current charging module and an overvoltage protection unit.
2. 2. The super capacitor module based on independent power supply of claim 1, wherein each capacitor unit of the super capacitor is made of nitrogen doped porous carbon electrode material, the specific capacitance is more than or equal to 200F/g, and the electrodes are fixed through laser welding.
3. 3. The super capacitor module based on independent power supply of claim 1, wherein the thickness of the shell is 1.2+/-0.1 mm, the inside of the shell is a hollow cavity, radiating fins are arranged on two sides of the cavity, the distance between the radiating fins of the shell is 5mm, the depth of the radiating fins of the shell is 3mm, and heat conduction silicone grease is sprayed on the surface of the radiating fins to enhance heat dissipation performance.
4. 4. The super capacitor module based on independent power supply of claim 1, wherein the working temperature range of the control circuit is-40 ℃ to 85 ℃, a temperature compensation algorithm is built in, and an equalization threshold is automatically adjusted according to the ambient temperature.
5. 5. The super capacitor module based on independent power supply of claim 1, wherein the voltage of the output side of the Boost circuit is stabilized to be 8.5 V+/-0.5V, and the conversion efficiency is more than or equal to 92%.
6. 6. The super capacitor module based on independent power supply according to claim 1, wherein the super capacitor is composed of at least one or a plurality of 5F super capacitor units connected in parallel.
7. 7. The super capacitor module based on independent power supply of claim 1, wherein the outer shell is formed by compounding an outer layer made of flame-retardant plastic material and an inner aluminum alloy layer.
8. 8. The super capacitor module based on independent power supply of claim 7, wherein the flame retardant plastic material is flame retardant ABS material.

Description

Super capacitor module based on independent power supply Technical Field The utility model relates to the technical field of energy storage, in particular to a super capacitor module based on independent power supply. Background The current intelligent closestool no-electricity flushing system mainly depends on a lithium battery pack to supply power, and the technical defects of the lithium battery pack to supply power comprise ‌ points as follows 1.‌ The cycle life is short ‌, namely the charge-discharge cycle life of the lithium battery pack is about 500 times, the capacity is attenuated to be less than 80% of the initial value, and the high-frequency use requirement cannot be met; 2.‌ low-temperature performance is bad ‌, when the ambient temperature is lower than 5 ℃, the discharge efficiency is reduced by more than 40%, and the use stability in winter is obviously reduced; 3.‌ volume and complexity are high ‌, and the lithium battery pack needs to be matched with a complex circuit board and a multi-layer protection structure, and is large in occupied space and high in assembly difficulty. Disclosure of utility model In view of the above, the present utility model aims to provide an independent power supply-based super capacitor module that solves the problems of short cycle life, poor low temperature performance and complex structure of the conventional lithium battery scheme through a modularized energy storage architecture. The super capacitor module based on independent power supply comprises a shell, a charging circuit, a super capacitor, a Boost circuit and a control circuit, wherein the super capacitor, the charging circuit, the Boost circuit and the control circuit are all arranged in the shell, the super capacitor consists of at least one 5F super capacitor unit, the input side of the Boost circuit is connected with the super capacitor, the control circuit integrates a switch capacitor circuit, the voltage of the super capacitor unit is monitored and balanced in real time, and the charging circuit comprises a constant current charging module and an overvoltage protection unit. Furthermore, each capacitor unit of the super capacitor is made of nitrogen doped porous carbon electrode material, the specific capacitance is more than or equal to 200F/g, and the electrodes are fixed through laser welding. Further, the thickness of the shell is 1.2+/-0.1 mm, a hollow cavity is arranged in the shell, radiating fins are arranged on two sides of the cavity, the distance between the radiating fins of the shell is 5mm, the depth is 3mm, and heat conduction silicone grease is sprayed on the surface of the shell to enhance the heat dissipation performance. Further, the working temperature range of the control circuit is-40 ℃ to 85 ℃, a temperature compensation algorithm is built in, and an equalization threshold is automatically adjusted according to the ambient temperature. Furthermore, the voltage of the output side of the Boost circuit is stabilized to be 8.5V plus or minus 0.5V, and the conversion efficiency is more than or equal to 92%. Further, the super capacitor is composed of at least one or a plurality of 5F super capacitor units which are connected in parallel. Further, the shell is formed by compounding an outer layer made of flame-retardant plastic materials and an inner aluminum alloy layer. Further, the flame-retardant plastic material is flame-retardant ABS material. The utility model has the advantages that the technical defects of short cycle life, poor low-temperature adaptability, complex structure and the like of the traditional lithium battery power supply scheme can be overcome by constructing the hybrid energy storage framework based on the super capacitor, the long-acting power supply of the intelligent closestool electroless flushing system is realized by the composite shell, the nitrogen-doped electrode super capacitor group and the synchronous rectification Boost circuit, the module supports wide-temperature-range operation at-40 ℃ to 65 ℃, the cycle life is over 50 ten thousand times, the volume is only 1/3 of that of the traditional scheme, the installation is convenient, and the control circuit is combined with the temperature compensation algorithm, so that the stability and the safety of the system are further improved. Drawings Fig. 1 is a schematic block diagram of the circuit of the present utility model. Fig. 2 is a schematic structural view of the housing. In the figure, a shell-1, a flame-retardant ABS outer layer-2, an aluminum alloy inner layer-3 and radiating fins-4 are shown. Detailed Description The utility model is further described below with reference to the accompanying drawings. Example 1 installation and workflow of super capacitor Module The installation step comprises the following steps: the module is fixed on the left inner wall of the intelligent closestool water tank through M4 stainless steel screws, and the distance between mounting holes is 60mm; Conn