KR20150047182A - Power supply apparatus using capacitance - Google Patents

Abstract

The present invention relates to a fine power device using a capacitance. The fine power device comprises; a substrate; a beta battery layered on the top of the substrate; a driving power supplying unit which is charged by using the power produced in the beta battery and supplies charged voltage to a driving power source; a pair of electrodes formed on one side of the top of a board to be connected to the driving power supplying unit; and a protection cover layered on the top of a package. Therefore, a capacitance is charged by using ultrafine power which is consistently discharged from the beta battery using a beta line (β) source having a high energy storage density. The beta line (β) source is a self-charging type and has a long live more than 10 years in proportion to a half-life of a radioactive isotope. The driving power source can be supplied to a product such as a sensor which requires fine power. Therefore, the corresponding product can be used semi-permanently.

Description

POWER SUPPLY APPARATUS USING CAPACITANCE USING CAPACITANCE BACKGROUND OF THE INVENTION [0001]

The present invention relates to a micro-power technology, and more particularly, to a micro-power technology in which a capacitance is charged using micro-power generated through a beta cell produced by combining a beta wire and a diode generated in Ni-63 among radioactive isotopes, To a driving power source at a lower stage.

The contents described in this section merely provide background information on the present embodiment and do not constitute the prior art.

BACKGROUND ART [0002] Recently, power supply required for operation of a device depends on a conventional chemical battery or a physical battery, so that operation time is limited, and there is inconvenience and limitation in battery replacement or charging.

Accordingly, development of a battery that can be used for a long period of time has been required, and a radioactive isotope cell has been developed in response to this demand. That is, the radioactive isotope cell has a principle of generating electrical energy in the form of irradiating a PN junction using charged particles that are released while the radioactive material collapses. Particles generated from the radioactive isotope source are absorbed into the PN junction, and electron hole pairs are formed due to the radioactive beta rays larger than the band gap energy of the semiconductor. In this case, the electron-hole pair moves to the n-type semiconductor and the hole to the p-type semiconductor by the electric field in the PN junction in the cell, and is collected at the interface electrode. When the load is connected to the electrodes at both ends, current flows and electric energy is generated.

Research on utilization of such radioactive isotope cells has recently been conducted in the United States and the like, and such radioactive isotope cells have a great advantage in life spans of several decades to several hundred years.

However, there is a disadvantage that the generated power is small, and a lot of researches have been made to improve the problem. As a result, in the United States, researches have been made to increase the generated power by using a trench structure.

In an embodiment of the present invention, the micro-power generated through the beta cell produced by the combination of the beta ray and the diode generated in Ni-63 among the radioactive isotopes is boosted to charge the entire solid secondary battery, And a micro-power device using the entire solid secondary battery.

According to an aspect of the present invention, there is provided a micro-power device using capacitance, comprising: a substrate; a beta cell stacked on the substrate; A pair of electrodes formed on one side of the upper part of the board to be connected to the driving power supply part, and a protective cover stacked on the package.

In one embodiment, the beta cell may be stacked on the substrate, and a driving power supply may be stacked on the beta cell.

In one embodiment, the substrate and the top of the substrate may further include a test socket between a beta cell and a ceramic package having a capacitance.

In one embodiment, the beta cell, the capacitance, and the electrodes may be electrically coupled by a connecting member.

The present invention relates to a self-charging type lithium secondary battery which has a lifetime of 10 years or more in proportion to the half-life period of a radioisotope and which is charged with capacitance using ultrafine power continuously generated in a beta battery using a beta ray source having a high energy storage density , A sensor that is a device requiring very little electric power, and the like, so that the product can be used semi-permanently.

1 is a view for explaining a micropower device using a capacitance according to an embodiment of the present invention.
2 is a view for explaining a micropower device using a capacitance according to another embodiment of the present invention.
FIG. 3 is a graph showing self absorption of Ni-63, a radioisotope source applied to the present invention, according to thickness.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description and the accompanying drawings, detailed description of well-known functions or constructions that may obscure the subject matter of the present invention will be omitted. It should be noted that the same constituent elements are denoted by the same reference numerals as possible throughout the drawings.

The terms and words used in the present specification and claims should not be construed to be limited to ordinary or dictionary meanings and the inventor is not limited to the concept of terminology for describing his or her invention in the best way. It should be interpreted as meaning and concept consistent with the technical idea of the present invention. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

BEST MODE FOR CARRYING OUT THE INVENTION First, a micro-power device using a capacitance according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a view for explaining a micropower device using a capacitance according to an embodiment of the present invention.

1, a micropower device 100 using a capacitance includes a substrate 110, a beta cell 120, a driving power supply 130, a pair of electrodes 140 (+) and (-), (150) and a protective cover (160).

The substrate 110 is a PCB substrate.

The beta cell 120 is provided on the substrate 110 and attached and fixed to the upper part of the substrate 110 by a general fixing and fixing method. The beta cell 120 uses Ni-63 as a radioactive isotope source. As shown in FIG. 3, when the thickness of the Ni-63 source is about 0.2 μm, the relative strength is about 1.0, The relative strength also increases to about 1.7. The relative intensities were gradually increased after the thickness of the Ni-63 isotope source was increased to 1.4 μm and then gradually saturated after 2.0 μm. This indicates that the thickness of the Ni-63 isotope source Even if it becomes thicker than about 2.5 ㎛, it means that the intensity of the produced beta rays becomes constant.

The driving power supply unit 130 is a capacitor and is provided on the substrate 110. The driving power supply unit 130 is charged with minute power generated by the beta cell 120 and supplies the charged power to the driving power source. Also, the capacitance 130 is attached and fixed to the upper part of the substrate 110 by a general fixing method like the beta cell 120.

The electrodes 140 and 150 of the pair ((+) and (-)) connect the capacitance 130 and the lower end to which the power is supplied, and supply the power stored in the capacitance 130 to the lower driving power .

The protective cover 160 is stacked on the substrate 110 to perform a shielding function to prevent the release of the beta rays to the outside.

The operating state of the micro-power device using the capacitance thus constructed will be described below.

(Example 1)

1 and 2, a micropower device 100 using a capacitance according to the present invention may be formed by stacking a beta cell 120 and a capacitance 130 on a substrate 110 in various forms. For example, as shown in FIGS. 1 and 2, the capacitance 130 may be disposed in a lower region of the beta cell 120, and the capacitance 130 may be disposed on the beta cell 120.

The connection terminals of the beta cell 120 and the capacitance 130 are connected in series and the electric energy generated in the beta cell 120 can be stored in the capacitance 130 directly.

(Example 2)

The second embodiment differs from the first embodiment in that a beta cell 120 and a capacitance 130 are formed in a package on the ceramic substrate 170 and the ceramic substrate 170 is bonded to the test socket 180, (110).

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of specific examples for the purpose of understanding and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100: Micro power device
110: substrate
120: Beta battery
130: Driving power supply (capacitance)
140, 150: a pair of electrodes
160: Protective cover
170: Ceramic substrate
180: Test socket

Claims (5)

Board;
A beta cell stacked on the substrate;
A driving power supply unit charging the battery using the power generated by the beta cell and supplying the charged voltage to the driving power source;
A pair of electrodes formed on one side of the upper part of the board to be connected to the driving power supply part; And
A protective cover laminated on the package;
And a capacitor connected to the power supply.
The method according to claim 1,
Wherein the beta cell is stacked on the substrate, and a driving power supply unit is stacked on the beta cell.
The method according to claim 1,
Further comprising a ceramic package on the substrate. The method according to claim 1,
Further comprising a test socket between the substrate and the ceramic package.
The method according to claim 1,
Wherein the first electrode, the second electrode, the first electrode, the second electrode, the first electrode, the second electrode, the first electrode, the second electrode, the first electrode, the second electrode, and the second electrode.

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