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Power supply used for oil type capacitor based sensor

A sensor and capacitor technology, applied in the field of power supply for sensors based on oil-type capacitors, can solve the problems of high-frequency noise interference, regular maintenance or replacement, unfavorable long-term use, etc., achieve long cycle life, meet power consumption, Fast charging effect

Inactive Publication Date: 2017-10-13
NINGBO JIANGBEI GOFRONT HERONG ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] According to the needs of different scenarios, the terminals of oil capacitors are generally equipped with sensors. If it is necessary to monitor the oil pressure inside the oil capacitor, a pressure sensor will be installed, and when the temperature of the oil capacitor needs to be monitored, a temperature sensor will be installed. When working, a power supply is needed to power it. In the prior art, battery power or external power supply is generally used, but (1) if battery power is used, due to the limited battery power, regular maintenance or replacement is required, which is not conducive to Long-term use; (2) If an external power supply is used for power supply, a large number of power lines need to be arranged in a limited space, and the routing of low-voltage wires between capacitors will be interfered by high-frequency noise generated by capacitors

Method used

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  • Power supply used for oil type capacitor based sensor
  • Power supply used for oil type capacitor based sensor
  • Power supply used for oil type capacitor based sensor

Examples

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Effect test

Embodiment 1

[0023] See figure 1 As shown, it is a schematic diagram of the structure of the power supply for sensors based on oil-type capacitors of the present invention figure 1 .

[0024] Such as figure 1 As shown, an oil-type capacitor-based sensor power supply includes a power generation module 1, an energy storage module 2 and a number of oil-type capacitor shells 3. The power generation module 1 and the energy storage module 2 are connected by wires, and the power generation The module 1 is arranged between the two oil-type capacitor shells 3. The oil-type capacitor shell 3 undergoes natural deformation during the operation of the oil-type capacitor 4, and the power generation module 1 generates a certain amount of Electric energy, the energy storage module 2 converts and stores the electric energy for use by the sensor 5 located near the sensor power supply.

[0025] Wherein, the oil-type capacitor 4 itself has a large volume, and the oil-type capacitor housing 3 undergoes a large amou...

Embodiment 2

[0029] According to the above-mentioned power supply for sensors based on oil capacitors, this embodiment differs from it in that the energy storage module 2 is composed of a number of super capacitors. The super capacitors are used as energy storage media and their charge and discharge cycles are The service life is more than 100,000 times, the charge retention ability is strong, the leakage power is small, and the charging is fast.

Embodiment 3

[0031] The difference between this embodiment and the above-mentioned power supply for sensors based on oil-type capacitors is that the calculation formula for the hourly power consumption of the sensor 5 is:

[0032] Q 1 =I×t×n 3

[0033] Among them, Q 1 Is the power consumption of the sensor 5 per hour, I is the current value used for the continuous working of the sensor 5 after starting, t is the time of the continuous working, n 3 Is the number of starts of the sensor 5 per hour;

[0034] Therefore, the hourly energy storage capacity of the energy storage module 2 satisfies the following calculation formula:

[0035]

[0036] Where C is the energy storage capacity of the energy storage module 2 per hour, and Q 1 Is the power consumption of the sensor 5 per hour, U 1 Is the full voltage value of the energy storage module 2, U 2 Is the discharge cut-off voltage value of the energy storage module 2;

[0037] The formula for calculating the electricity generated per hour by the power ge...

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Abstract

The invention provides a power supply used for an oil type capacitor based sensor. The power supply comprises power generation modules, an energy storage module and multiple oil type capacitor shells; the power generation modules are connected with the energy storage module by using wires; each power generation module is arranged between each two oil type capacitor shells; each oil type capacitor shell deforms naturally during the working time of the oil type capacitor; each power generation module when being extruded generates a certain amount of electric energy; and the energy storage module converts the electric energy, then stores the converted electric energy and then provides the stored energy to a sensor which is arranged near the power supply used for the sensor to use. The power supply used for the oil type capacitor based sensor solves the power supply problem of the oil type capacitor terminal sensor by utilizing the electric energy caused by natural deformation of the oil type capacitor shells in a using process.

Description

Technical field [0001] The invention relates to the technical field of power supplies, in particular to a power supply for sensors based on oil-type capacitors. Background technique [0002] According to the needs of different scenarios, the terminals of oil-type capacitors are generally equipped with sensors. If the oil pressure inside the oil-type capacitor needs to be monitored, a pressure sensor will be installed. When the temperature of the oil-type capacitor needs to be monitored, a temperature sensor will be installed. A power supply is needed to supply power during work. In the prior art, battery power supply or external power supply is generally used, but (1) If battery power is used, due to limited battery power, regular maintenance or replacement is required, which is not conducive to Long-term use; (2) If an external power supply is used, a large number of power cords need to be arranged in a limited space, and the low-voltage wire routing between the capacitors will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/32H02J7/34
CPCH02J7/32H02J7/345
Inventor 毛元奇洪光
Owner NINGBO JIANGBEI GOFRONT HERONG ELECTRIC
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