KR102245750B1 - Non-contact continuous piezoelectric generator using magnetic force - Google Patents

Abstract

The present invention provides a non-contact continuous piezoelectric generator using magnetic force, comprising: n+1 rotor layers in the form of a disk rotating by an external energy source; n stator layers in the form of a disk positioned at each gap between the rotor layers; and a support structure supporting the rotor layers and the stator layers and forming a frame of the non-contact continuous piezoelectric generator, wherein n is a natural number equal to or greater than 2. In a unit element, a permanent magnet (s) is formed at a position corresponding to a permanent magnet (r) of the rotor layer while being formed at an intermediate position in the second direction of an intermediate medium, such that only an intermediate position of the unit element moves in the first direction of the stator layer by allowing the permanent magnet (s) of the unit element to receive attraction and repulsion due to the permanent magnet (r) of the rotor layer, and continuous piezoelectric power generation can be performed in a non-contact manner by forming stopper structures with respect to the outer and inner tip ends of the unit element formed on the surface of the stator layer to be spaced at a predetermined interval in the first direction of the stator layer in order not to separate the outer and inner tip ends of the unit element in the direction of the stator layer, even though outer and inner tip ends of the unit element are not fixatedly supported in the second direction, and only the intermediate position of the unit element moves in the first direction of the stator layer by allowing the permanent magnet (s) of the unit element to receive attraction and repulsion due to the permanent magnet (r) of the rotor layer.

Description

Non-contact continuous piezoelectric generator using magnetic force{NON-CONTACT CONTINUOUS PIEZOELECTRIC GENERATOR USING MAGNETIC FORCE}

The present invention relates to a non-contact continuous piezoelectric generator using magnetic force, and more particularly, various natural forces such as wind power, tidal power, and water power, or unused artificial energy that is extinguished without being recovered, for example, after passing a vehicle. In a non-contact continuous piezoelectric generator that recovers the vibration force of the road and the vibration force inside the vehicle, etc., the permanent magnet of the unit element of the stator layer, even if the outer and inner ends of the unit element are not fixedly supported in the second direction to be described later ( s) Even if only the intermediate position of the unit element moves in the first direction of the stator layer due to the attractive force and repulsive force by the permanent magnet (r) of this rotor layer, the outer and inner ends of the unit element are in the first direction of the stator layer. A stopper structure is formed for the outer and inner ends of the unit elements formed on the circular surface of the stator layer at a predetermined interval in the first direction of the stator layer so as not to be separated from the stator layer, so that continuous piezoelectric power generation is performed without contact. It is possible, to a non-contact continuous piezoelectric generator using magnetic force.

A piezoelectric effect element is an element using crystals or piezoelectric ceramics that generate voltage when mechanical stress is applied and distortion occurs when voltage is applied to the contrary. When pressure is applied, the voltage changes (piezoelectric effect), and when a voltage is applied on the contrary, It refers to a device that has the property of expanding or contracting.

There are also piezoelectric ceramics made of sintered crystal or barium titanate known from the past, but the most widely used is lead zirconate titanate (weak PZT), and can be found in lighters and ignition devices of gas appliances. In automobiles, it is used as a knock sensor or various pressure sensors.

Recently, research and development have been actively conducted on various energy generating devices or power generation devices using such piezoelectric elements.

Various technologies exist in related fields. For example, in Korean Patent No. 1380538 (registered on March 26, 2014), "a piezoelectric harvesting system using a compressive force according to an embodiment of the present invention includes a piezoelectric material made of a piezoelectric material; and the piezoelectric material is attached thereto. Including, the piezoelectric body is attached to one surface where the fixture is compressed, and when a compressive force is applied to the fixture, electric energy may be generated by applying a compressive force to the piezoelectric body. According to an example, a compressive force is applied among external forces generated by a load and a hit, and electric energy can be generated using this. Here, a technology for generating electricity by means of a piezoelectric body subjected to a vibration force or a compressive force by an external blow has been disclosed.

The above-described patent has limitations on continuous power generation, and furthermore, as invented by the applicant in the present invention, even if the outer and inner ends of the unit element are not fixedly supported, the permanent magnet (s) of the unit element is a permanent magnet of the rotor layer. Even if only the intermediate position of the unit element moves in the first direction of the stator layer by receiving the attractive force and repulsive force by (r), the outer and inner ends of the unit element are not separated in the first direction of the stator layer. Non-contact continuous piezoelectricity using magnetic force, which enables continuous piezoelectric power generation without contact, as a stopper structure is formed for the outer and inner ends of the unit element formed on the surface of the stator layer at a predetermined interval in the first direction. There was no disclosure of the generator at all.

Korean Patent No. 1380538 (registered on March 26, 2014), title of invention: Piezoelectric harvesting system using compression force {PIEZOELECTRIC HARVESTING SYSTEM USING COMPRESSIVE FORCE}

The present invention was created to solve the above-described problems, and the present invention is a variety of natural forces such as wind power, tidal power, and hydropower, or unused artificial energy that is extinguished without being recovered, for example, generated after passing a vehicle. In the non-contact continuous piezoelectric generator that recovers the vibration force of the road and the vibration force inside the vehicle, the permanent magnet s of the unit element is not fixed even if the outer and inner ends of the unit element are fixedly supported in the second direction. Even if only the intermediate position of the unit element moves in the first direction of the stator layer by receiving the attractive force and repulsive force by the permanent magnet (r), the outer and inner ends of the unit element do not deviate in the first direction of the stator layer. A stopper structure is formed for the outer and inner ends of the unit elements formed on the disk surface of the stator layer at a predetermined interval in the first direction of the layer, so that continuous piezoelectric power generation is possible without contact, using magnetic force. It is an object to provide a non-contact continuous piezoelectric generator.

도의 일정한 각도 단위로 일정하게 상기 제 3 방향으로 배치되며, 상기 제 1 방향으로 바라보았을 때, 서로 이웃하는 로터층들 간의 영구자석의 자극의 배치는 NS극이 반전되어 배치되며, 상기 스테이터층에는, 상기 로터층의 영구자석(r)에 의한 인력과 척력이 작용하는 영구자석(s)과, 중간 매개체와, 상기 중간 매개체를 통해서 상기 영구자석(s)과 결합되어 연속적 구동으로 에너지를 발생시키는 압전소자의 결합으로 이루어진 단위 소자 m개가 원주를 따라서

도의 일정한 각도 단위로 상기 제 3 방향으로 일정하게 배치되며, 상기 m은 2 이상의 자연수이고, 상기 외부의 에너지원에 의하여, 상기 로터층이 회전이 시작될 때 상기 스테이터층 및 다른 로터층에 존재하는 영구자석 간에 발생하는 초동 토크가 최소화될 수 있도록, 상기 제 1 방향으로 바라보았을 때, k번째의 스테이터층의 m개의 영구자석과, (k+1) 번째의 스테이터층의 m개의 영구자석은 서로 중첩되게 보이지 않고, k번째의 스테이터층의 m개의 영구자석과, (k+1) 번째의 스테이터층의 m개의 영구자석는 전체적으로 θ 각도(θ는 0도가 아님) 만큼씩 엇갈리게 배치되며, n번째의 스테이터 스테이터층의 m개의 영구자석과 1번째의 스테이터층의 m개의 영구자석도 θ 각도(θ는 0도가 아님) 만큼씩 엇갈리게 배치되고, k는 n-1 이하의 자연수이고, 상기 단위 소자에 있어서, 상기 영구자석(s)은 상기 로터층의 영구자석(r)의 대응 위치에 형성되되 상기 중간 매개체의 제 2 방향에서 중간 위치에 형성되어 있어서, 상기 단위 소자의 영구자석(s)이 상기 로터층의 영구자석(r)에 의한 인력과 척력을 작용받아서 상기 단위 소자의 중간 위치만이 상기 스테이터층의 제 1 방향으로 움직이고, 상기 제 2 방향에서 상기 단위 소자의 외측 및 내측 끝단은 고정 지지되지 않아도, 상기 단위 소자의 영구자석(s)이 상기 로터층의 영구자석(r)에 의한 인력과 척력을 작용받아서 상기 단위 소자의 중간 위치만이 상기 스테이터층의 제 1 방향으로 움직이더라도, 상기 단위 소자의 외측 및 내측 끝단은 상기 스테이터층의 제 1 방향으로 이탈되지 않도록, 상기 스테이터층의 제 1 방향으로 소정의 간격을 두고 상기 스테이터층의 표면에 형성된 상기 단위 소자의 외측 및 내측 끝단에 대한 스톱퍼(stopper) 구조가 형성되어 있어서, 비접촉으로 연속 압전 발전을 한다. A non-contact continuous piezoelectric generator using magnetic force according to an embodiment of the present invention for achieving the above object includes, by an external energy source, n+1 rotor layers in the form of a disk rotating; N stator layers in the form of a disk positioned between the rotor layers; And a support structure supporting the rotor layer and the stator layer and forming a frame of the non-contact continuous piezoelectric generator, wherein n is a natural number of 2 or more, and a center of the rotor layer and the stator layer is vertically The rotor layer is a linear direction perpendicular to the first direction and is parallel to the surfaces of the rotor layer and the stator layer, starting from the central point of the rotor layer and the stator layer. And a rotational direction of a linear direction toward the outer circumference of the stator layer as a second direction, and a rotational direction of circularly surrounding the first direction on the surfaces of the rotor layer and the stator layer, and a rotational direction perpendicular to the second direction as a third direction. In the case of, each of the rotor layers has m permanent magnets (r) along the circumference.

The magnetic poles of the permanent magnets are arranged in the third direction in a constant angle unit of the degree, and when viewed in the first direction, the arrangement of the magnetic poles of the permanent magnets between the neighboring rotor layers is arranged with the NS poles reversed, and the stator layer has , The permanent magnet (s) in which the attractive force and repulsive force by the permanent magnet (r) of the rotor layer acts, and the intermediate medium, and the permanent magnet (s) through the intermediate medium to generate energy through continuous driving A unit element consisting of a combination of piezoelectric elements is m units along the circumference.

It is uniformly arranged in the third direction in a certain angle unit of degrees, and m is a natural number of 2 or more, and by the external energy source, permanently present in the stator layer and other rotor layers when the rotor layer starts to rotate. To minimize the initial torque generated between the magnets, when viewed in the first direction, the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer overlap each other. The m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer are arranged alternately by θ angle (θ is not 0 degrees), and the n-th stator The m permanent magnets of the stator layer and the m permanent magnets of the first stator layer are also alternately arranged by θ angle (θ is not 0 degrees), and k is a natural number of n-1 or less, and in the unit element, The permanent magnet (s) is formed at a corresponding position of the permanent magnet (r) of the rotor layer, and is formed at an intermediate position in the second direction of the intermediate medium, so that the permanent magnet (s) of the unit element is the rotor layer Even if only the intermediate position of the unit element is moved in the first direction of the stator layer by receiving the attractive force and repulsive force by the permanent magnet (r) of the unit element, the outer and inner ends of the unit element in the second direction are not fixedly supported. , Even if only the intermediate position of the unit element moves in the first direction of the stator layer as the permanent magnet (s) of the unit element is subjected to attraction and repulsion by the permanent magnet (r) of the rotor layer, the unit element The outer and inner ends of the stator layer are formed at predetermined intervals in the first direction of the stator layer so as not to deviate in the first direction of the stator layer, and stoppers for the outer and inner ends of the unit elements formed on the surface of the stator layer ( stopper) structure is formed, and continuous piezoelectric power generation is performed without contact.

이고, 상기 단위 소자가 상기 스톱퍼에 끼워질 수 있도록, s > t 이여야 한다. Here, the length between the outer and inner ends of the unit element in the second direction is l, the maximum deformable maximum displacement of the unit element in the second direction is dmax, and the unit element in the first direction The thickness is denoted as t, and in the stopper structure, the width of the space in which the unit element is fitted into the stopper is denoted as s, and the outer or inner end of the unit element in the stopper is not separated in the first direction of the stator layer. When p is the length protruding so that the outer or inner end of the unit element is not fixedly supported in the second direction, the permanent magnet (s) of the unit element is caused by the permanent magnet (r) of the rotor layer. Even if only the intermediate position of the unit element is moved in the first direction of the stator layer due to the attractive force and repulsive force, the outer or inner end of the unit element does not deviate in the first direction of the stator layer,

And, so that the unit element can be fitted into the stopper, s> t must be.

도의 일정한 각도 단위로 일정하게 상기 제 3 방향으로 배치되며, 상기 제 1 방향으로 바라보았을 때, 서로 이웃하는 로터층들 간의 영구자석의 자극의 배치는 NS극이 반전되어 배치되며, 상기 스테이터층에는, 상기 로터층의 영구자석(r)에 의한 인력과 척력이 작용하는 영구자석(s)과, 중간 매개체와, 상기 중간 매개체를 통해서 상기 영구자석(s)과 결합되어 연속적 구동으로 에너지를 발생시키는 압전소자의 결합으로 이루어진 단위 소자 m개가 원주를 따라서

도의 일정한 각도 단위로 상기 제 3 방향으로 일정하게 배치되며, 상기 m은 2 이상의 자연수이고, 상기 외부의 에너지원에 의하여, 상기 로터층이 회전이 시작될 때 상기 스테이터층 및 다른 로터층에 존재하는 영구자석 간에 발생하는 초동 토크가 최소화될 수 있도록, 상기 제 1 방향으로 바라보았을 때, k번째의 스테이터층의 m개의 영구자석과, (k+1) 번째의 스테이터층의 m개의 영구자석은 서로 중첩되게 보이지 않고, k번째의 스테이터층의 m개의 영구자석과, (k+1) 번째의 스테이터층의 m개의 영구자석는 전체적으로 θ 각도(θ는 0도가 아님) 만큼씩 엇갈리게 배치되며, n번째의 스테이터 스테이터층의 m개의 영구자석과 1번째의 스테이터층의 m개의 영구자석도 θ 각도(θ는 0도가 아님) 만큼씩 엇갈리게 배치되고, k는 n-1 이하의 자연수이고, 상기 단위 소자에 있어서, 상기 영구자석(s)은 상기 로터층의 영구자석(r)의 대응 위치에 형성되되 상기 중간 매개체의 제 2 방향에서 중간 위치에 형성되어 있어서, 상기 단위 소자의 영구자석(s)이 상기 로터층의 영구자석(r)에 의한 인력과 척력을 작용받아서 상기 단위 소자의 중간 위치만이 상기 스테이터층의 제 1 방향으로 움직이고, 상기 제 2 방향에서 상기 단위 소자의 외측 또는 내측 끝단 중 어느 한 끝단은 고정되고 다른 끝단은 고정 지지되지 않아도, 상기 단위 소자의 영구자석(s)이 상기 로터층의 영구자석(r)에 의한 인력과 척력을 작용받아서 상기 단위 소자의 중간 위치만이 상기 스테이터층의 제 1 방향으로 움직이더라도, 상기 단위 소자의 고정되지 않은 끝단이 상기 스테이터층의 제 1 방향으로 이탈되지 않도록, 상기 스테이터층의 제 1 방향으로 소정의 간격을 두고 상기 스테이터층의 표면에 형성된 상기 단위 소자의 고정되지 않은 끝단에 대한 스톱퍼(stopper) 구조가 형성되어 있어서, 비접촉으로 연속 압전 발전을 한다. On the other hand, the non-contact continuous piezoelectric generator using magnetic force according to another embodiment of the present invention, by an external energy source, n + 1 rotor layer in the form of a disk rotating; N stator layers in the form of a disk positioned between the rotor layers; And a support structure supporting the rotor layer and the stator layer and forming a frame of the non-contact continuous piezoelectric generator, wherein n is a natural number of 2 or more, and a center of the rotor layer and the stator layer is vertically The rotor layer is a linear direction perpendicular to the first direction and is parallel to the surfaces of the rotor layer and the stator layer, starting from the central point of the rotor layer and the stator layer. And a rotational direction of a linear direction toward the outer circumference of the stator layer as a second direction, and a rotational direction of circularly surrounding the first direction on the surfaces of the rotor layer and the stator layer, and a rotational direction perpendicular to the second direction as a third direction. In the case of, each of the rotor layers has m permanent magnets (r) along the circumference.

The magnetic poles of the permanent magnets are arranged in the third direction in a constant angle unit of the degree, and when viewed in the first direction, the arrangement of the magnetic poles of the permanent magnets between the neighboring rotor layers is arranged with the NS poles reversed, and the stator layer has , The permanent magnet (s) in which the attractive force and repulsive force by the permanent magnet (r) of the rotor layer acts, and the intermediate medium, and the permanent magnet (s) through the intermediate medium to generate energy through continuous driving A unit element consisting of a combination of piezoelectric elements is m units along the circumference.

It is uniformly arranged in the third direction in a certain angle unit of degrees, and m is a natural number of 2 or more, and by the external energy source, permanently present in the stator layer and other rotor layers when the rotor layer starts to rotate. To minimize the initial torque generated between the magnets, when viewed in the first direction, the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer overlap each other. The m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer are arranged alternately by θ angle (θ is not 0 degrees), and the n-th stator The m permanent magnets of the stator layer and the m permanent magnets of the first stator layer are also alternately arranged by θ angle (θ is not 0 degrees), and k is a natural number of n-1 or less, and in the unit element, The permanent magnet (s) is formed at a corresponding position of the permanent magnet (r) of the rotor layer, and is formed at an intermediate position in the second direction of the intermediate medium, so that the permanent magnet (s) of the unit element is the rotor layer Only the intermediate position of the unit element moves in the first direction of the stator layer by receiving the attractive force and repulsive force by the permanent magnet (r) of, and either end of the outer or inner end of the unit element in the second direction is Even if it is fixed and the other end is not fixedly supported, the permanent magnet (s) of the unit element is subjected to attractive force and repulsive force by the permanent magnet (r) of the rotor layer, so that only the intermediate position of the unit element is applied to the stator layer. The unit element formed on the surface of the stator layer at a predetermined interval in the first direction of the stator layer so that the unfixed end of the unit element does not deviate in the first direction of the stator layer even if it moves in one direction Since a stopper structure is formed for the unfixed end of the unit, continuous piezoelectric power generation is performed without contact.

이고, 상기 단위 소자가 상기 스톱퍼에 끼워질 수 있도록, s > t 이어야 한다. Here, the length between the outer and inner ends of the unit element in the second direction is l, the maximum deformable maximum displacement of the unit element in the second direction is dmax, and the unit element in the first direction The thickness is denoted as t, and in the stopper structure, the width of the space in which the unit element is inserted into the stopper is denoted as s, and the stopper is not separated from the unfixed end of the unit element in the first direction of the stator layer. When p is the length protruding so that the permanent magnet s of the unit element is not fixedly supported at either the outer or inner end of the unit element in the second direction, the permanent magnet s of the rotor layer ( Even if only the intermediate position of the unit element moves in the first direction of the stator layer by receiving the attractive force and repulsive force by r), the unfixed end of the unit element does not deviate in the first direction of the stator layer,

And, so that the unit element can be fitted into the stopper, s> t must be.

이며, 여기서, l은 정수이다. In addition, the sum of the angular differences in the m number of the third directions between the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer is θ _k , where θn Is the sum of the difference between the angles of the m permanent magnets of the n-th stator layer and the m permanent magnets of the first stator layer, and _{the positive direction of θ k} is a visual direction or a half of the third direction. If you select either clockwise direction,

And, where l is an integer.

일 수 있다. Furthermore, θ ₁ = θ ₂ = ... = θ _k = ... = θ _n = ±360 degrees/n,

Can be

In addition, the unit element is made of stainless steel (SUS), which is an intermediate intermediate between the permanent magnet (s) and the piezoelectric element, and the permanent magnet (s) and the piezoelectric element, and the permanent magnet ( It is preferable that s) and the intermediate medium are bonded with an adhesive, and the piezoelectric element and the intermediate medium are also bonded with an adhesive.

In addition, the unit element includes a two-layer piezoelectric element including one more piezoelectric element, and the unit element including the two-layer piezoelectric element includes the upper piezoelectric element, the upper intermediate medium, stainless steel, and It is preferably made of a permanent magnet (s) in the lower part, stainless steel as a lower intermediate medium in the lower part, and a lower piezoelectric element in the lower part, and each of which is bonded with an adhesive.

In addition, in the unit element, a plurality of perforations are provided in stainless steel (SUS), which is the intermediate medium, so that adhesion between the piezoelectric element and the intermediate medium can be strengthened and the maximum displacement dmax of the unit element can be increased, the unit It is preferable to increase the number of perforations so that the number of perforations can be flexibly deformed in response to large deformation of the unit element as it goes toward the end of the unit element that is not fixed among the outer and inner ends of the element.

In addition, in the unit device, it is preferable that the piezoelectric device is coated with a nickel thin film and reinforced so that the maximum displacement dmax of the unit device can be increased.

In addition, in the unit element, it is preferable to reinforce the piezoelectric element by covering a mesh made of stainless steel (SUS) on the piezoelectric element so that the maximum displacement dmax of the unit element can be increased.

A non-contact continuous piezoelectric generator using magnetic force according to the present invention,

First, a non-contact continuous piezoelectric generator using magnetic force to recover various natural forces such as wind power, tidal power, water power, etc., or unused artificial energy that is extinguished without being recovered when rotational power occurs or can be converted to rotational power. It is possible to provide.

Second, it is possible to prevent the risk of abrasion or damage to the piezoelectric element due to impact or blow compared to the case of conventional piezoelectric power generation by a hitting type.

Third, in the case of conventional piezoelectric power generation, unlike the generation of undesirable waveforms, at least one of both ends of the unit element is not fixed and moves freely so that the waveform generated by piezoelectric power generation is a sine wave or a waveform close to a sine wave, In other words, it is generated in the form of waves alternating with (+) and (-), and has various expansion possibilities.

Fourth, when viewed in the first direction of the non-contact continuous piezoelectric generator, the arrangement of the permanent magnets is dispersed, and when the rotor layer starts to rotate by an external energy source, the stator layer, the rotor layer starting to rotate, and other rotors It is possible to minimize the initial torque generated between the permanent magnets present in the layer.

In other words, one of the big problems in implementing the deformation of a piezoelectric material in a non-contact manner using a permanent magnet is that the number of permanent magnets increases as the number of piezoelectric materials and layers increases, and accordingly the magnitude of magnetic force. The torque increased so that initial driving of the piezoelectric generator was impossible due to the proportional increase. Such a problem, that is, the initial torque problem can be minimized through the present invention.

Fifth, the piezoelectric energy harvest method developed so far has been a factor in causing a lot of adverse effects on the circuit or increasing the internal impedance as well as charging the generated electricity by generating a lot of high frequencies due to the impact of external energy. In addition, in the case of the conventional hitting type, the device for hitting the piezoelectric material occupies most of the module, which has become a major impediment to the improvement of the integration of the piezoelectric material, and has been a fatal factor in shortening the life of the material due to hitting the piezoelectric material. It is possible to protect the material by applying a polymer to the surface of one or more piezoelectric materials, or to fundamentally solve this problem by adopting a non-contact method in the present invention.

1 is an example of a unit harvester applicable to a non-contact continuous piezoelectric generator using magnetic force according to a preferred embodiment of the present invention.
FIG. 2 shows an embodiment of a non-contact continuous piezoelectric generator using magnetic force to which the unit harvester of FIG. 1 is applied.
FIG. 3 shows another embodiment of a non-contact continuous piezoelectric generator using magnetic force to which a plurality of unit harvesters of FIG. 1 are applied.
FIG. 4 is a side view (second direction) of another embodiment of a non-contact continuous piezoelectric generator using magnetic force to which a plurality of unit harvesters of FIG. 1 are applied.
FIG. 5 is a side view (second direction) of another embodiment of a non-contact continuous piezoelectric generator using magnetic force to which a plurality of unit harvesters of FIG. 1 are applied.
FIG. 6 is a side view (second direction) of another embodiment of a non-contact continuous piezoelectric generator using magnetic force to which a plurality of unit harvesters of FIG. 1 are applied.
Figure 7 shows the arrangement of (a) a cylindrical rotating body (R1), a stator (S1), a rotating body (R2), and a stator (S2) in the innermost when the cross section is cut horizontally, and (b) vertical It is a view viewed from the side when hitting the cross section in the direction.
8 is a non-contact continuous non-contact using magnetic force in which a plurality of plates in linear reciprocating motion by converting rotational force due to natural force into linear reciprocating motion, and applying a plurality of unit harvesters to a plurality of fixed plates It shows an embodiment of a piezoelectric generator.
9 is by adjusting or combining the strength of the magnetic force of the first magnetic body portion and the second magnetic body portion or the attractive force and repulsive force of the N-pole and S-pole so that the first magnetic body portion and the second magnetic body portion balance magnetic forces to be offset, Or, it is a diagram for explaining an example of designing such that the total of magnetic force is evenly distributed over the entire driving section in the entire module applied to the drive shaft.
Fig. 10 shows when both ends of the unit device (or piezoelectric material) are fixed, as well as when one or both ends of the unit device are open, that is, when the piezoelectric material is deformed by external energy because it is not fixed and supported. It is a diagram showing a method of constructing or manufacturing a piezoelectric material as a single layer or a multilayer so that one or both ends of an unfixed unit element slide.
FIG. 11 shows a non-contact continuous piezoelectric generator using magnetic force as shown in FIG. 4, that is, a case having n+1 rotor layers and n stator layers.
FIG. 12 shows a (n+1)-th rotor layer in the form of a disk in the non-contact continuous piezoelectric generator using the magnetic force of FIG. 11, in which m permanent magnets are arranged at equal intervals.
13 shows an n-th stator layer in the form of a disk in the non-contact continuous piezoelectric generator using the magnetic force of FIG. 11, in which m unit elements are arranged at equal intervals.
14 is a diagram showing a state in which unit elements of a first stator layer, a second stator layer, a third stator layer, and a fourth stator are alternately arranged in the non-contact continuous piezoelectric generator using the magnetic force of FIG. This is a conceptual diagram for splitting magnetic force to minimize torque.
FIG. 15 is a diagram illustrating a case in which one end of the unit element is open, that is, only one end is fixedly supported, and is a diagram illustrating that a permanent magnet is positioned in the center and is bent and displacement occurs in a horizontal direction.
Fig. 16 shows a case where both ends of the unit element are open, that is, both ends are not fixed. It is shown that the permanent magnet is positioned in the center and is bent, and displacement occurs in the horizontal direction (the second direction). It is an explanatory drawing.
17 is a view showing a first direction, a second direction, and a third direction for explanation of the present invention.
18 is a view for explaining a design limitation condition when both ends of a unit device are open, that is, when both ends are not fixed.
Fig. 19 is a schematic approximation of the drawing in Fig. 18 and is a diagram explaining design constraints.
FIG. 20 is a diagram for explaining a design limitation condition when one end of the unit device is open, that is, when one end is fixedly supported and the other end is not fixed.
21 is a perspective view of a configuration of a unit device and a stopper in a stator layer, and m units of such unit devices and a stopper are configured.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the specification and claims should not be construed as being limited to their usual or dictionary meanings, and the inventors appropriately explain the concept of terms in order to explain their own invention in the best way. Based on the principle that it can be defined, it should be interpreted as a meaning and concept consistent with the technical idea of the present invention.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only the most preferred embodiment of the present invention, and do not represent all the technical spirit of the present invention. It should be understood that there may be equivalents and variations.

According to the non-contact continuous piezoelectric generator using magnetic force according to an embodiment of the present invention, the first magnetic body portion (permanent magnet, etc.); And a second magnetic body portion (permanent magnet, etc.) that is non-contact with the first magnetic body portion and exchanges magnetic force with each other according to the driving of the first magnetic body portion, wherein the first magnetic body portion or the second magnetic body portion, respectively It is directly or indirectly attached to the first piezoelectric element or the second piezoelectric element, and in the case of the first magnetic body portion, electricity is generated from the first piezoelectric element by continuous driving by the non-contact magnetic force of the second magnetic body portion, or In the case of the second magnetic body portion, electricity is generated from the second piezoelectric element by continuous driving by the non-contact magnetic force of the first magnetic body portion. Here, indirect attachment refers to a case of attachment between the magnetic body and the piezoelectric element through a medium. Continuous driving refers to a case in which a sine wave is generated in a piezoelectric element by non-contact magnetic force, but a plurality of sine waves are continuously generated.

1 is an example of a unit harvester (including a unit element) applicable to a non-contact continuous piezoelectric generator using magnetic force according to a preferred embodiment of the present invention, and FIG. 2 is a diagram of a non-contact continuous piezoelectric generator using magnetic force to which the unit harvester of FIG. 1 is applied. It shows an embodiment.

As shown in FIG. 1, the unit harvester 100 is a piezoelectric element mounted to a jig or object 10 so as to be vibrated, and all or part of it is exposed to the outside so as to react to external magnetic force. It may be made of a first magnetic body portion 30 and a first piezoelectric element 20 disposed on the rear surface of the magnetic body portion.

FIG. 1 is an example for explanation, and as described above, the second magnetic body part can be continuously driven by the non-contact magnetic force of the first magnetic body part, so that it is directly or indirectly attached to the second magnetic body part. Piezoelectric power generation may occur in the second piezoelectric element.

The first magnetic body part 30 and the first piezoelectric element 20 may be laminated and manufactured integrally, and in addition to the vibration of the jig or the object 10, the first piezoelectric element 20 and the first magnetic body Elastic coupling between the first magnetic body part 30 and the first piezoelectric element 20 is also possible so as to generate vibrations between the parts 30.

Of course, the unit harvester may be composed of only a unit element composed of a magnetic body and a piezoelectric element without a spring such as 40 of FIG. 1. That is, the unit device may be opened without being fixed at both ends of the unit device with a stopper structure to be described later, or only one end may be fixedly supported and the other end may be opened without being fixedly supported. This will be described later.

As shown in FIG. 2, the object (stator layer) 200 includes a first magnetic body part and a first piezoelectric element directly or indirectly attached to the first magnetic body part 30, and a rotating body (rotor layer) Reference numeral 300 is arranged or installed with a second magnetic body portion providing magnetic force to the first magnetic body portion of the above-described object. As described above, in the case of the second magnetic body, the second magnetic body can be continuously driven by the non-contact magnetic force of the first magnetic body, so that piezoelectric power generation occurs in the second piezoelectric element disposed to be directly or indirectly attached to the second magnetic body. I can.

As shown in FIG. 2, a second magnetic body to provide magnetic force to the object (stator) 200 in which the unit harvester 100 shown in FIG. 1 is disposed or installed, and the first magnetic body part 30 of the unit harvester It includes a rotor 300 that is additionally arranged or installed.

The first piezoelectric element is applied to the jig or object 10 by using an elastic member such as a spring 40 by receiving magnetic force to generate repulsive force and attractive force by a second magnetic body portion mounted on the rotating body 300. Vibration or relative movement. However, the 40 member is not limited to an elastic member such as a spring, and may be a member capable of bending as a plate shape or movable (sliding) as a plate shape. Furthermore, without 40 members, both ends of the unit device may be opened without being fixedly supported by a stopper structure described later, or only one end may be fixedly supported and the other end may be opened without being fixedly supported.

For example, in a unit element disposed on the stator layer and composed of a magnetic material (permanent magnet) and a piezoelectric element, the inner end of the unit element in the second direction (refer to the notation in FIG. 17) is the inside of the stator layer (that is, a circular shape). The unit element is fixed to the center of the stator layer), and the outer end of the unit element in the second direction (i.e., the outer peripheral side of the circular stator layer) is a unit element above and below the outer circumference of the stator layer in the first direction perpendicular to the stator layer plane. Due to the stopper structure formed corresponding to the outer end of the unit element, the bending movement of the unit element is limited to the movement in the first direction of the stator layer plane of the unit element, so that it is in the second direction, which is the plane direction of the stator layer. It appears to be shortened and lengthened, and as a result, Hyogo realizes that the stator layer is displaced in the second direction in the plane direction and slides in the space. (See Fig. 15)

As shown in FIG. 3, the object 200 includes a plurality of first magnetic bodies and a plurality of first piezoelectric materials directly or indirectly attached to the first magnetic body 30, and the rotating body 300 A plurality of the second magnetic bodies for providing magnetic force to the first magnetic body of the object may be disposed or installed.

In the rotating body 300, one or more second magnetic body parts may be arranged or installed, but it is preferable to arrange the number of second magnetic body parts that provide maximum magnetic force such as repulsive force and attraction force to the first magnetic body part 30 of the unit harvester. desirable.

Here, it is preferable that the second magnetic body of the rotating body 300 is disposed or installed at a corresponding position that provides the maximum magnetic force to the first magnetic body. Furthermore, it is preferable that the number of second magnetic bodies be selected to correspond to the vibration frequency of the jig or the object 10.

Specifically, the larger the number of second magnetic body parts, the better it is, and if the frequency at which the piezoelectric element vibrates against the jig or object 10 using an elastic member such as a spring 40 is high, even if there are many second magnetic body parts, the vibration is hindered. I can only do it. Therefore, it is preferable to arrange the second magnetic body portion corresponding to the vibration frequency of the jig or the object 10.

In addition, the energy generated by the first piezoelectric element is a first piezoelectric element as an electric energy storage unit mounted on the jig 10 or the object 200 by using part or all of the spring or the elastic member 40 as a circuit line. It is possible to store the energy generated by piezoelectric power.

FIG. 4 is a side view showing another embodiment of a piezoelectric harvesting apparatus to which a plurality of unit harvesters of FIG. 1 are applied. Rotor (R1, R2, R3, R4, R5) is fixed with respect to the X-axis of the rotation axis, and by the rotation of the X-axis, R1, R2, R3, R4, and R5 rotate in synchronization. On the other hand, although not shown, the stator (S1, S2, S3, S4), which is connected and fixed to the inside of a cylinder-like cylinder structure and does not rotate, has a unit harvester ( One or more of 100) are arranged or installed.

Rotors (R1, R2, R3, R4, R5) rotating by various natural forces such as wind power, tidal power, hydropower, etc. A second magnetic body portion for providing magnetic force to the first magnetic body portion 30 of the unit harvester installed in the stators S1, S2, S3, S4 is arranged or installed.

As shown in FIG. 3, one or more second magnetic floating parts may be arranged or installed in the rotating bodies R1, R2, R3, R4, R5, but magnetic forces such as repulsive force and attractive force are applied to the first magnetic body part 30 of the unit harvester. It is preferable to arrange the number of second magnetic body portions to provide the maximum.

As described in FIG. 3, in this case, in this case, the piezoelectric element vibrates or moves relative to a jig or stator using an elastic member such as a spring 40, or performs a reciprocating motion such as bending or sliding, It is preferable to select the number of second magnetic body parts in consideration of the vibration frequency.

Furthermore, the X-axis has a fixed force enough to provide a structure that rotates by natural force by fixing the rotor (R1, R2, R3, R4, R5), but some parts to allow relative movement between the rotating bodies. It is also possible to design it to have elasticity. Meanwhile, the number of rotors and stators (objects) may vary depending on the design environment or conditions.

FIG. 5 is a side view of another embodiment of a piezoelectric harvesting apparatus to which a plurality of unit harvesters of FIG. 1 are applied. The difference from FIG. 4 is that the rotor and the stator or stator (stator) are not alternately arranged and designed, and the rotors R1 and R2 are configured only at both ends, and the stator inside the remaining rotor ( Object) (stator) (S1, S2, S3, S4, S5, S6, S7) are all arranged. Like FIG. 4, although not shown, the stator (S1, S2, S3, S4, S5, S6), which is connected and fixed to the inside of a cylinder-like cylinder structure and does not rotate, includes FIGS. 1 to 3 At least one unit harvester 100 shown in is disposed or installed. It is preferable to arrange a magnetic body portion having a stronger magnetic force than the magnetic body portion installed in the rotating body shown in FIG. 4 in the rotating body.

FIG. 6 is a side view of another embodiment of a piezoelectric harvesting apparatus to which a plurality of unit harvesters of FIG. 1 are applied. The difference from FIG. 5 is that the unit harvester 100 is not disposed on the stator (object) adjacent to the rotating bodies R1 and R2. This is because dummy stators DS1 and DS2 are additionally arranged or installed in consideration of the possibility of colliding with each other in an unexpected situation in the relationship with the rotating bodies R1 and R2.

Figure 7 shows the arrangement of (a) a cylindrical rotating body (R1), a stator (S1), a rotating body (R2), and a stator (S2) in the innermost when the cross section is cut horizontally, and (b) vertical It is a view viewed from the side when hitting the cross section in the direction. In (b) of FIG. 7, the axes of the rotating bodies R1 and R2 are the same from above, so when the shaft rotates, the rotating body R1 and the rotating body R2 can rotate at the same time, and the stator (object) S1 , S2) is fixed to the lower shaft. In the rotating body, a magnetic body portion is arranged on the cylinder surface, and a unit harvester 100 is arranged in the stators (objects) S1 and S2. It is not limited to such a form, and a linear reciprocating motion in the axial direction of the rotating body may also be a form of driving of the present invention.

8 is a diagram of a piezoelectric harvesting device in which a magnet is installed on a plurality of plates in linear reciprocating motion, and a plurality of unit harvesters are applied to a plurality of fixed plates by converting rotational force due to natural force into linear reciprocating motion. It shows an example. It is possible to convert the rotational force due to natural force or the like into a linear reciprocating motion using a crank. Although not shown in FIG. 8, it is possible for a plurality of fixed plates on the right side of FIG. 8 to perform a linear reciprocating motion similarly to the plurality of plates on the left side of FIG. 8 performing a linear reciprocation motion. However, it is desirable to allow relative movement to occur.

Here, the first magnetic body part or the second magnetic body part is sufficient as long as it is a permanent magnet, a soft magnetic material, etc. that can be magnetized by itself, or is strongly magnetized by applying a small amount of external magnetic field, so that it is an object or a collection of materials. Furthermore, the first magnetic body portion or the second magnetic body portion may be formed of an electromagnet. However, here, the case of a permanent magnet will be described as a representative example.

Materials for power generation used in the present invention include piezoelectric materials in addition to the permanent magnets and soft magnetic materials described above. The first piezoelectric element or the second piezoelectric element is a device made of a conventional piezoelectric material.

In addition, the first magnetic body portion and/or the second magnetic body portion may each have a plurality of flat plate structures or may have a plurality of cylindrical structures. Here, the flat plate structure may be in the form of a disk shape or a polygonal plate shape. The cylindrical structure can form a cylinder structure. Here, a polygonal plate will be described as a representative example.

The power generation plate, which is a plate manufactured to perform piezoelectric power generation, can be manufactured in the following three forms in the case of a flat plate type.

(1) Without physically separating one power generation material, it is divided into all or partitions of a polygonal plate, but piezoelectric elements are divided into two or more. The piezoelectric element is manufactured to generate piezoelectric power, or (2) two or more magnetic elements and piezoelectric elements are attached to the substrate directly or indirectly, but at least one magnetic element is attached to or adjacent to each piezoelectric material. Fabricate the device to generate piezoelectric power, or (3) process the substrate according to the shape of the power generation material so that each type of power generation material can be installed on the substrate, or install a structure in the form of a substrate to correspond to the shape of the power generation material. The power generation material is attached or approached in a single layer or in a multi-layer, but two or more piezoelectric elements are attached or approached at different locations on the same substrate, and at least one magnetic substance is attached or adjacent to each piezoelectric element. It can be manufactured so that the device can generate piezoelectric power.

The power generation plate, which is a plate manufactured to perform piezoelectric power generation, can be manufactured in the following three forms in the case of a cylindrical shape.

(1) Without physically separating one material for power generation, the entire plate surface or the plate surface is divided into divisions, but the piezoelectric element is divided into two or more, and at least one magnetic material is attached or adjacent to each piezoelectric element. Each piezoelectric element can be manufactured to generate piezoelectric power, or (2) two or more magnetic and piezoelectric elements are attached directly or indirectly to the plate surface, but at least one magnetic substance is attached or adjacent to each piezoelectric element. Each piezoelectric element can be manufactured to generate piezoelectric power, or (3) the mail plate surface is processed according to the shape of the power generation material so that each type of power generation material can be installed on the mail plate surface, or the mail plate is made to correspond to the shape of the power generation material. By installing a structure in the form of a single-layer or multi-layered material for power generation, attaching or approaching two or more piezoelectric elements at different locations on the same mail plate, and attaching at least one magnetic substance to each piezoelectric element, or It is manufactured so that each piezoelectric element can generate piezoelectric power in close proximity.

In addition, the word “attachment” used here refers to mechanically integrating the power generation material by attaching it to the substrate with a physical or chemical or other material, and proximity means installing the power generation material directly or indirectly enough to have a physical effect. It means to do. In addition, direct contact refers to a case of contacting or affecting through a medium or an intermediary layer, although not direct contact.

Here, the first magnetic body portion and the second magnetic body portion each have a flat plate structure or a cylindrical structure, and the driving of the first magnetic body portion or the second magnetic body portion is performed in front and rear reciprocating motion, left and right reciprocating motion with respect to each other. It is at least one of a reciprocating motion, a linear reciprocating motion, and a rotary motion.

Here, the forward and backward reciprocating motion, the left and right reciprocating motion, the vertical reciprocating motion, the linear reciprocating motion, and the rotational motion are relative motions and refer to motions that can cause continuous piezoelectric power generation. It is not a one-time or irregular environment of the conventional striking type, but a relative movement capable of continuous movement occurs. Through this, unlike the impulse waveform in the conventional striking piezoelectric power generation, a sine wave or a waveform close to a sine wave can be generated. That is, the waveform of electricity generated from the first piezoelectric material or the second piezoelectric material is a waveform in which both a'+' wave and a'-' wave are generated. In Figures 2 and 3, it is illustrated on the premise of a rotational motion. It is not limited to FIGS. 2 and 3, and may include various linear reciprocating motions such as forward and backward reciprocating motion, left and right reciprocating motion, and vertical reciprocating motion (in FIG. 8, only one movement, but both movements are possible) In addition, two cylindrical plates with a cylinder structure can rotate. Of course, it is naturally possible for two cylindrical plates having a cylinder structure to perform a relative motion in a linear reciprocating motion.

In other words, in the case of a cylindrical plate, a linear motion and a curved motion, such as the plate moving in parallel in the longitudinal direction of the plate, or the plate rotating around the center of the cross section of the plate, may be moved individually or in combination. The diameter of the generator tube of the cylindrical plate refers to the diameter or diagonal length of the cross section of the generator tube.

Further, the first piezoelectric element or the second piezoelectric element is each continuously displaced or deformed two or more times, so that the first piezoelectric element or the second piezoelectric element is manufactured in a structure in which piezoelectric power is continuously performed two or more times. In addition, a piezoelectric generator may be installed by mixing an existing winding type generator and used as a hybrid generator.

On the other hand, FIG. 9 shows that by combining the strength of magnetic force of the first magnetic body portion and the second magnetic body portion or the attractive force and repulsive force of the N-pole and S-pole, the first magnetic body portion and the second magnetic body portion balance magnetic forces to be offset, or Or, it is a diagram for explaining an example of designing such that the total of magnetic force is evenly distributed over the entire driving section in the entire module applied to the drive shaft.

That is, as shown in FIG. 9, after separating eight unit harvesters of one stator into two stators, each of eight unit harvesters is disposed, and then the maximum values of the magnetic force of the magnetic body are alternately disposed. The magnetic body part of the stator at the leftmost position (refer to the circular dotted line mark) was positioned between the magnetic body part of the stator arranged third from the left (refer to the dotted line mark in the circle), that is, the maximum values of the magnetic force were arranged to be staggered. . Through this, assuming the waveform of the magnetic force, the magnetic force of the large upper peak (peak) and the large lower peak (valley) of the magnetic force is obtained, and two upper peaks (peaks) having a size of 1/2 and a lower peak having a size of 1/2 ( Valley) it is possible to divide into two.

In this way, by combining the strength of the magnetic force of the first magnetic body portion and the second magnetic body portion, or the attractive force and repulsive force of the N and S poles, the first magnetic body portion and the second magnetic body portion are balanced with each other to offset the magnetic force, or It is designed so that the total amount of magnetic force is evenly distributed over the entire driving section of the applied module, so that the first magnetic body part or the second magnetic body part is started with less energy than when the first magnetic body part is initially started, and power generation efficiency can be improved.

In fact, in the case of the magnetic force of the large peak and the large valley, the magnetic force was so strong that it was not able to properly maneuver (rotate) at the beginning, but it was divided into two half-sized peaks and two half-sized valleys. In this case, the initial start (rotation) was made more easily, that is, the power generation efficiency could be improved by being driven with minimum energy.

In addition, when the first magnetic body part and the second magnetic body are manufactured as separate modules or as an integral module, respectively, so as not to impair or lose the function of the electric circuit inside the module, and to not corrode all materials inside the module, In a state where the module is completely shielded from external moisture or moisture, the first magnetic body portion or the second magnetic body portion generates energy in a non-contact manner to the second piezoelectric element or the first piezoelectric element using attractive force and repulsive force.

The piezoelectric energy harvest method developed so far has been a factor in causing a lot of bad influence on the circuit or increasing the internal impedance as well as charging the generated electricity by generating a lot of high frequency by the impact of external energy. In addition, in the case of the conventional hitting type, the device for hitting the piezoelectric element occupies most of the module, which has become a major impediment to the improvement of the integration degree of the piezoelectric element, and has been a fatal factor in shortening the life of the material by hitting the piezoelectric element. .

In this case, it is also possible to fabricate a piezoelectric material part in a single layer or a multilayer by attaching or attaching a spacer to the center of one or more piezoelectric elements. As described above, it is possible to protect the material by applying a polymer to the surface of one or more piezoelectric elements, or to mold a piezoelectric element into a single layer or a multi-layer using a polymer to form a block.

In addition, in order to use the first piezoelectric element or the second piezoelectric element semi-permanently, the first piezoelectric element or the second piezoelectric element is molded with epoxy or polymer, or applied to the surface of the first piezoelectric element or the second piezoelectric element. use. In addition, in order to increase the amount of piezoelectric power per unit area or volume, a plurality of first piezoelectric elements or a plurality of second piezoelectric elements are integrated and molded with epoxy or polymer.

On the other hand, Fig. 10 shows that when both ends of the piezoelectric material are fixed, as well as one end or both ends of the piezoelectric element as an open type, one or both ends of the material slide when the piezoelectric element is deformed by external energy. It is a diagram showing a method of constructing or manufacturing a piezoelectric material as a single layer or a multilayer. See FIG. 15 when one end is open, and see FIG. 16 when both ends are open.

2nd and 3rd in FIG. 10, as shown in FIGS. 15 and 16, a structure in which one end of the first piezoelectric element or the second piezoelectric element is opened (the second and third in FIG. 10, 15), or both When the center of the first piezoelectric element or the second piezoelectric element is pressurized by magnetic force by taking a structure with an open end (Fig. 10, Fig. 16) (the permanent magnet 20 is the center of the first piezoelectric element or the second piezoelectric element) When the first piezoelectric element or the second piezoelectric element is bent, the open end is naturally cut and lengthened, and displacement in the horizontal direction occurs, resulting in the same as sliding. In this way, a factor that hinders the deformation of the first piezoelectric element or the second piezoelectric element due to externally applied energy is minimized.

In other words, in the case of the cantilever type, which has been mainly used to improve the output of the piezoelectric energy harvest, an unnecessary factor that greatly hinders the deformation of the material with respect to external energy applied to the material by fixing both ends of the piezoelectric element. This became a major cause of lowering the efficiency by converting energy applied from outside into electric energy.

In the present invention, when one or both ends of the piezoelectric element are open and pressurize the center of the piezoelectric element, the end of the piezoelectric element is naturally bent and shortened and lengthened in the longitudinal direction, resulting in a sliding effect. Unnecessary energy consumption is minimized by minimizing the factors that hinder the deformation of the piezoelectric element due to the applied energy or completely removing the hindering factors, thereby maximizing the energy conversion efficiency of the piezoelectric element.

In the non-contact continuous piezoelectric generator using the magnetic force according to the present invention, the rotating body 300 of FIG. 2 or 3 may be a variety of natural forces such as wind power, tidal power, and hydraulic power, or an unused artificial It rotates by energy, and the rotational force is recovered by this device.

At this time, the piezoelectric power generation (mechanical-electrical energy conversion unit that converts mechanical energy into electrical energy) may be performed by being directly connected to the non-contact continuous piezoelectric generator using magnetic force according to the present invention, but mechanical energy that stores mechanical energy at the front end. Including a storage unit, receives the energy stored in the mechanical energy storage unit, to perform non-contact continuous piezoelectric power generation using magnetic force. Through this, the characteristics of continuous piezoelectric power generation are improved, and the quality of the generated waveform can be made close to that of a sine wave.

For example, the mechanical energy storage unit may have a hydraulically stored energy spring mechanism. Alternatively, it is possible to adopt a configuration that stores mechanical energy such as vibrations caused by the load of a vehicle passing through roads (transportations, highways, railways, etc.) in the form of hydraulic pressure or pneumatic pressure, and immediately following the non-contact continuous piezoelectric power generation of the present invention. It is possible to make it connected with wealth.

In addition, it may further include an electrical energy storage unit for storing the electrical energy generated from the continuous non-contact piezoelectric generator using the magnetic force.

FIG. 11 shows a non-contact continuous piezoelectric generator using magnetic force as shown in FIG. 4, that is, a case having n+1 rotor layers and n stator layers. FIG. 12 shows a (n+1)-th rotor layer in the form of a disk in the non-contact continuous piezoelectric generator using the magnetic force of FIG. 11, in which m permanent magnets are arranged at equal intervals. 13 shows an n-th stator layer in the form of a disk in the non-contact continuous piezoelectric generator using the magnetic force of FIG. 11, in which m unit elements are arranged at equal intervals. 14 is a diagram showing a state in which unit elements of a first stator layer, a second stator layer, a third stator layer, and a fourth stator are alternately arranged in the non-contact continuous piezoelectric generator using the magnetic force of FIG. This is a conceptual diagram for splitting magnetic force to minimize torque.

As shown in FIGS. 11 to 14, the non-contact continuous piezoelectric generator using magnetic force has n+1 rotor layers in the form of a rotating disk by an external energy source, and in the form of a disk located between the rotor layers. n stator layers; And a rotor layer and a support structure supporting the stator layer.

도의 일정한 각도 단위로 일정하게 배치되며, 비접촉 연속 압전 발전기의 축방향(제 1 방향)으로 바라보았을 때, 서로 이웃하는 로터층들 간의 영구자석의 위치는 180도 만큼씩 엇갈리게 배치, 즉 NS극이 반전된다. 여기서, 서로 이웃하는 로터층들 간의 영구자석의 위치가 180도 만큼씩 엇갈리게 배치되는 것은, 영구자석의 N극과 S극 방향이 서로 반대로 뒤집어지는 것으로, 결과적으로 서로 이웃하는 로터층들의 영구자석은 서로 같은 극이 서로를 바라보게 된다. 구체적으로 특정 로터층의 축방향 위면에 N극이 있고 아래면에 S극이 있다면, 해당 특정 로터층의 축방향 위면의 N극과 대향하는 이웃한 로터층의 축방향 아래면에는 똑같은 극성인 N극이 있고, 해당 특정 로터층의 축방향 아래면의 S극과 대향하는 이웃한 로터층의 축방향 위면에는 똑같은 극성인 S극이 있다. (도 9의 300과 500의 영구자석 극성을 참조) Here, each of the rotor layers has m permanent magnets along the circumference.

When viewed in the axial direction (first direction) of the non-contact continuous piezoelectric generator, the positions of the permanent magnets between the neighboring rotor layers are alternately arranged by 180 degrees, that is, the NS pole is Is reversed. Here, the fact that the positions of the permanent magnets between neighboring rotor layers are alternately arranged by 180 degrees is that the directions of the N and S poles of the permanent magnet are reversed. As a result, the permanent magnets of the neighboring rotor layers are The same plays look at each other. Specifically, if there is an N pole on the upper surface in the axial direction of a specific rotor layer and an S pole on the lower surface, the N pole in the axial direction of the neighboring rotor layer opposite to the N pole on the upper surface in the axial direction of the specific rotor layer has the same polarity. There is a pole, and there is an S pole of the same polarity on the upper surface of the adjacent rotor layer in the axial direction opposite to the S pole of the axial lower surface of the specific rotor layer. (Refer to the permanent magnet polarity of 300 and 500 in Fig. 9)

도의 일정한 각도 단위로 일정하게 배치된다. Here, in the stator layer, m unit elements are circumferentially combined with a permanent magnet in which attractive force and repulsive force by the permanent magnet of the rotor layer acts, and a piezoelectric element that is combined with the permanent magnet through an intermediate medium to generate energy through continuous driving. Along

It is uniformly arranged in units of a certain angle of the degree.

At this time, by an external energy source, the axial direction of the non-contact continuous piezoelectric generator can be minimized so that the initial torque generated between the stator layer and the permanent magnets present in the other rotor layer when the rotor layer starts to rotate at the initial stage can be minimized. 1 direction), the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer do not appear to overlap each other, and the m permanent magnets of the k-th stator layer The magnet and the m permanent magnets of the (k+1)-th stator layer are arranged alternately by θ angle (θ is not 0 degrees) as a whole, and the m permanent magnets of the n-th stator stator layer and the first stator layer The m permanent magnets of are also alternately arranged by θ angle (θ is not 0 degrees). Here, n and m are natural numbers of 2 or more, and k is a natural number of n-1 or less. (See Fig. 14)

12 is a view showing a concept for magnetic force division in the non-contact continuous piezoelectric generator as shown in FIG. 11. As shown in FIG. 12, each of the n stator layers divided by 360 degrees/m is divided again so as to be staggered. Through this, as the number of unit elements m in the stator layer increases, the dividing angle decreases and the size of the initial actuation torque decreases, and as the number of stator layers n increases, the dividing angle decreases and thus the size of the initial actuation torque decreases. It also becomes smaller. In fact, in the case of differential division, piezoelectric power generation itself did not occur because rotation was not performed at all due to the initial torque of hundreds to thousands of Nm (Newton meters), that is, it did not start itself. When 360 degrees/nm = 3 degrees, that is, when dividing by 3 degrees, it was possible to lower the initial torque to 1.38 Nm. It can be seen that the initial torque is lowered when all the magnetic forces between a plurality of permanent magnets are analyzed in a vector manner.

인 것이 바람직하다. 여기서, l은 정수이다. Generalizing such an implementation, the sum of the m angular differences between the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer is θ _k , where θn is n It is called the sum of the difference between the angles of the m permanent magnets of the first stator layer and the m permanent magnets of the first stator layer, and _{the positive direction of θ k} is the time when viewed in the axial direction of the non-contact continuous piezoelectric generator. If you select either direction or counterclockwise,

It is preferable to be. Where l is an integer.

이다. In addition, the sum of the m angular differences between the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer is θ _k , where θn is the n-th stator layer. It is called the sum of the difference between the angles of the m permanent magnets and the m permanent magnets of the first stator layer, and _{the positive direction of θ k} is the visual direction or counterclockwise when viewed in the axial direction of the non-contact continuous piezoelectric generator. When selecting any one of the directions _{, it is preferable that θ 1} = θ ₂ = ... = θ _k = ... = θ _n = 360 degrees/n. At this time,

to be.

The unit device has a structure capable of continuously driving in a disc-shaped stator layer. The unit element is made of stainless steel (SUS), an intermediate medium existing between the permanent magnet and the piezoelectric element, and the permanent magnet and the piezoelectric element, and the permanent magnet and the intermediate medium are bonded with an adhesive, and the piezoelectric element Between the and the intermediate medium is also bonded with an adhesive.

The applicant of the present invention has discovered through experiments that a piezoelectric element is cracked, that is, a crack occurs when continuously driven in such a unit element. As a concept to solve this problem, a highly flexible metal thin film is coated on the piezoelectric element. Through this, it was possible to offset the stress and improve the tensile strength.

As a specific example, three experiments were conducted: a case where a mesh reinforcing foam was attached to the piezoelectric element, a case made of SUS was reinforced, and a case where surface treatment was reinforced by coating with nickel. It was found that the case where the surface treatment was reinforced by coating nickel on the piezoelectric element could most suppress the material damage of the piezoelectric element. Through the experiment, the case of attaching the mesh reinforcing foam on the piezoelectric element and the case of reinforcing the mesh made of SUS is less than the case of reinforcing surface treatment by coating nickel on the piezoelectric element, but the existing case where only piezoelectric elements are present. It could be confirmed that it was improved. That is, in the unit element, it is preferable that the piezoelectric element is coated with a nickel thin film and reinforced so that the maximum displacement dmax of the unit element can be increased. In addition, in the unit element, it is preferable to reinforce the piezoelectric element by covering it with a mesh made of stainless steel (SUS) so that the maximum displacement dmax of the unit element can be increased.

In addition, the applicant of the present invention, in the intermediate medium (base) in the unit element, to strengthen the adhesion between the piezoelectric element and the intermediate medium and to have a larger displacement (bending) of the piezoelectric element, the intermediate medium stainless steel (SUS) The experiment was conducted by having a plurality of holes. In the case where the plurality of perforations of the intermediate medium, in particular, the shape of the unit element is a trapezoid, it is possible to provide more perforations in a wide portion and fewer perforations in a narrow portion of the trapezoidal intermediate medium. Through this, the adhesion between the piezoelectric element and the intermediate medium can be strengthened, and the piezoelectric element can be displaced larger, that is, bend larger. Larger displacements mean more energy production in the end.

In addition, in the unit element, a plurality of perforations are provided in stainless steel (SUS), which is an intermediate medium, so that the adhesion between the piezoelectric element and the intermediate medium can be strengthened and the maximum displacement dmax of the unit element can be increased. It is also possible to increase the number of perforations so that it can be more flexibly deformed in response to large deformation of the unit element as it goes toward the end of the unit element that is not fixed in the middle.

FIG. 18 is a diagram for explaining design constraints when both ends of the unit device are open, that is, when both ends are not fixed, and FIG. 19 is a schematic approximation of the diagram of FIG. It is a figure explaining the limiting conditions, and FIG. 21 is a perspective view of the structure of a unit element and a stopper in a stator layer, and such a unit element and m number of stoppers are comprised.

18 and 19, in the unit element, the permanent magnet (s) is formed at a corresponding position of the permanent magnet (r) of the rotor layer, and is located at an intermediate position in the second direction of the intermediate medium. Is formed, wherein the permanent magnet (s) of the unit element receives the attractive force and repulsive force by the permanent magnet (r) of the rotor layer, so that only the intermediate position of the unit element moves in the first direction of the stator layer, and the Even if the outer and inner ends of the unit element are not fixedly supported in the second direction, the permanent magnet (s) of the unit element receives the attractive force and repulsive force by the permanent magnet (r) of the rotor layer, so that the middle of the unit element Even if only the position moves in the first direction of the stator layer, the outer and inner ends of the unit element may be separated from each other in the first direction of the stator layer at a predetermined interval in the first direction of the stator layer. A stopper structure is formed for the outer and inner ends of the unit element formed on the surface of the layer, so that continuous piezoelectric power generation is performed in a non-contact manner.

이고, 상기 단위 소자가 상기 스톱퍼에 끼워질 수 있도록, s > t 이여야 한다. 여기서, l은 dmax나 t와 비교하여 상당히 큰 값으로, 도 18 및 도 19에 도시된 것처럼, 단위소자가 압전 동작으로 휘어지더라도 직선으로 근사화하는 것이 가능하여 위와 같은 설계 조건을 도출하였다. Here, the length between the outer and inner ends of the unit element in the second direction is l, the maximum deformable maximum displacement of the unit element in the second direction is dmax, and the unit element in the first direction The thickness is denoted as t, and in the stopper structure, the width of the space in which the unit element is fitted into the stopper is denoted as s, and the outer or inner end of the unit element in the stopper is not separated in the first direction of the stator layer. When p is the length protruding so that the outer or inner end of the unit element is not fixedly supported in the second direction, the permanent magnet (s) of the unit element is caused by the permanent magnet (r) of the rotor layer. Even if only the intermediate position of the unit element is moved in the first direction of the stator layer due to the attractive force and repulsive force, the outer or inner end of the unit element does not deviate in the first direction of the stator layer,

And, so that the unit element can be fitted into the stopper, s> t must be. Here, l is a considerably larger value compared to dmax or t. As shown in FIGS. 18 and 19, even if the unit element is bent by a piezoelectric motion, it is possible to approximate it in a straight line, and the above design conditions were derived.

FIG. 20 is a diagram for explaining a design limitation condition when one end of the unit device is open, that is, when one end is fixedly supported and the other end is not fixed.

As shown in Fig. 20, in the unit element, the permanent magnet (s) is formed at a corresponding position of the permanent magnet (r) of the rotor layer, and is formed at an intermediate position in the second direction of the intermediate medium. , Only the intermediate position of the unit element moves in the first direction of the stator layer as the permanent magnet (s) of the unit element receives the attractive force and repulsion force by the permanent magnet (r) of the rotor layer, and the second direction In even though one end of the outer or inner end of the unit element is fixed and the other end is not fixedly supported, the permanent magnet (s) of the unit element acts on attractive force and repulsive force by the permanent magnet (r) of the rotor layer. Even if only the intermediate position of the unit element is moved in the first direction of the stator layer, it is determined in the first direction of the stator layer so that the unfixed end of the unit element is not separated in the first direction of the stator layer. A stopper structure is formed for the unfixed end of the unit element formed on the surface of the stator layer with an interval of, so that continuous piezoelectric power generation is performed in a non-contact manner.

이고, 상기 단위 소자가 상기 스톱퍼에 끼워질 수 있도록, s > t 이어야 한다. Here, the length between the outer and inner ends of the unit element in the second direction is l, the maximum deformable maximum displacement of the unit element in the second direction is dmax, and the unit element in the first direction The thickness is denoted as t, and in the stopper structure, the width of the space in which the unit element is inserted into the stopper is denoted as s, and the stopper is not separated from the unfixed end of the unit element in the first direction of the stator layer. When p is the length protruding so that the permanent magnet s of the unit element is not fixedly supported at either the outer or inner end of the unit element in the second direction, the permanent magnet s of the rotor layer ( Even if only the intermediate position of the unit element moves in the first direction of the stator layer by receiving the attractive force and repulsive force by r), the unfixed end of the unit element does not deviate in the first direction of the stator layer,

And, so that the unit element can be fitted into the stopper, s> t must be.

As described above, here, l is a considerably larger value compared to dmax or t, and as shown in FIG. .

18 to 21, the unit element is not fixed at both ends and slides in the second direction, or one end is fixed and one end slides in the second direction may be adopted. . As a result, the life of the unit device is extended, and it is possible to generate a more perfect sinusoidal output.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and the technical spirit of the present invention and the following by those of ordinary skill in the technical field to which the present invention pertains. It goes without saying that various modifications and variations are possible within the equal range of the claims to be described.

Claims (11)

As a non-contact continuous piezoelectric generator using magnetic force,
N+1 rotor layers in the form of a disk rotating by an external energy source;
N stator layers in the form of a disk positioned between the rotor layers; And
And a support structure that supports the rotor layer and the stator layer and forms a frame of the non-contact continuous piezoelectric generator,
N is a natural number of 2 or more,
A linear direction, which is a central axis vertically penetrating the center of the rotor layer and the stator layer, is a first direction, a linear direction perpendicular to the first direction, and is parallel to the surfaces of the rotor layer and the stator layer, Starting from the center point of the rotor layer and the stator layer, a linear direction toward the outer periphery of the rotor layer and the stator layer is a second direction, and the first direction is circularly wrapped on the surfaces of the rotor layer and the stator layer. When the rotation direction is a direction and is perpendicular to the second direction as a third direction,
Each of the rotor layers has m permanent magnets (r) along the circumference.

The magnetic poles of the permanent magnets are arranged in the third direction in a constant angle unit of the degree, and when viewed in the first direction, the arrangement of the magnetic poles of the permanent magnets between the neighboring rotor layers is arranged with the NS poles inverted,
In the stator layer, a permanent magnet (s) in which attractive force and repulsive force by the permanent magnet (r) of the rotor layer acts, and an intermediate medium, and the permanent magnet s through the intermediate medium are coupled to the permanent magnet by continuous driving. M unit elements consisting of a combination of piezoelectric elements generating energy along the circumference

It is uniformly arranged in the third direction in a certain angle unit of degrees,
M is a natural number of 2 or more,
When the rotor layer starts to rotate by the external energy source, the initial torque generated between the stator layer and the permanent magnets present in the other rotor layer can be minimized, when viewed in the first direction, the k-th The m permanent magnets of the stator layer of and the m permanent magnets of the (k+1)-th stator layer do not appear to overlap each other, and the m permanent magnets of the k-th stator layer and the (k+1)-th stator layer The m permanent magnets of the stator layer are arranged alternately by θ angle (θ is not 0 degrees) as a whole, and the m permanent magnets of the n-th stator stator layer and the m permanent magnets of the first stator layer are also θ angle (θ). Is not 0 degrees)
k is a natural number less than or equal to n-1,
In the unit element, the permanent magnet (s) is formed at a corresponding position of the permanent magnet (r) of the rotor layer and is formed at an intermediate position in the second direction of the intermediate medium, so that the permanent magnet ( s) receives the attractive force and repulsive force by the permanent magnet (r) of the rotor layer, so that only the intermediate position of the unit element moves in the first direction of the stator layer,
Even if the outer and inner ends of the unit element are not fixedly supported in the second direction, the permanent magnet (s) of the unit element receives the attractive force and repulsive force by the permanent magnet (r) of the rotor layer, Even if only the intermediate position moves in the first direction of the stator layer, the outer and inner ends of the unit element are spaced at a predetermined interval in the first direction of the stator layer so that the outer and inner ends of the unit element are not separated in the first direction of the stator layer. A stopper structure is formed for the outer and inner ends of the unit element formed on the surface of the stator layer, so that continuous piezoelectric power generation is performed without contact,
The length between the outer and inner ends of the unit element in the second direction is l, the maximum deformable maximum displacement of the unit element in the second direction is dmax, and the thickness of the unit element in the first direction say t,
In the stopper structure, the width of the space in which the unit element is inserted into the stopper is s, and the length of the stopper protruding so that the outer or inner end of the unit element does not deviate in the first direction of the stator layer is p If you say,
Even if the outer or inner ends of the unit element are not fixedly supported in the second direction, the permanent magnet (s) of the unit element is subjected to attractive force and repulsive force by the permanent magnet (r) of the rotor layer. Even if only the intermediate position moves in the first direction of the stator layer, the outer or inner end of the unit element does not deviate in the first direction of the stator layer,

And, so that the unit element can be fitted into the stopper, s> t,
Non-contact continuous piezoelectric generator using magnetic force.
delete As a non-contact continuous piezoelectric generator using magnetic force,
N+1 rotor layers in the form of a disk rotating by an external energy source;
N stator layers in the form of a disk positioned between the rotor layers; And
And a support structure that supports the rotor layer and the stator layer and forms a frame of the non-contact continuous piezoelectric generator,
N is a natural number of 2 or more,
A linear direction, which is a central axis vertically penetrating the center of the rotor layer and the stator layer, is a first direction, a linear direction perpendicular to the first direction, and is parallel to the surfaces of the rotor layer and the stator layer, Starting from the center point of the rotor layer and the stator layer, a linear direction toward the outer periphery of the rotor layer and the stator layer is a second direction, and the first direction is circularly wrapped on the surfaces of the rotor layer and the stator layer. When the rotation direction is a direction and is perpendicular to the second direction as a third direction,
Each of the rotor layers has m permanent magnets (r) along the circumference.

The magnetic poles of the permanent magnets are arranged in the third direction in a constant angle unit of the degree, and when viewed in the first direction, the arrangement of the magnetic poles of the permanent magnets between the neighboring rotor layers is arranged with the NS poles inverted,
In the stator layer, a permanent magnet (s) in which attractive force and repulsive force by the permanent magnet (r) of the rotor layer acts, and an intermediate medium, and the permanent magnet s through the intermediate medium are coupled to the permanent magnet by continuous driving. M unit elements consisting of a combination of piezoelectric elements generating energy along the circumference

It is uniformly arranged in the third direction in a certain angle unit of degrees,
M is a natural number of 2 or more,
When the rotor layer starts to rotate by the external energy source, the initial torque generated between the stator layer and the permanent magnets present in the other rotor layer can be minimized, when viewed in the first direction, the k-th The m permanent magnets of the stator layer of and the m permanent magnets of the (k+1)-th stator layer do not appear to overlap each other, and the m permanent magnets of the k-th stator layer and the (k+1)-th stator layer The m permanent magnets of the stator layer are arranged alternately by θ angle (θ is not 0 degrees) as a whole, and the m permanent magnets of the n-th stator stator layer and the m permanent magnets of the first stator layer are also θ angle (θ). Is not 0 degrees)
k is a natural number less than or equal to n-1,
In the unit element, the permanent magnet (s) is formed at a corresponding position of the permanent magnet (r) of the rotor layer and is formed at an intermediate position in the second direction of the intermediate medium, so that the permanent magnet ( s) receives the attractive force and repulsive force by the permanent magnet (r) of the rotor layer, so that only the intermediate position of the unit element moves in the first direction of the stator layer,
In the second direction, the permanent magnet (s) of the unit element is attracted by the permanent magnet (r) of the rotor layer, even if one of the outer or inner ends of the unit element is fixed and the other end is not fixedly supported. Even if only the intermediate position of the unit element is moved in the first direction of the stator layer due to the overrepulsive force, the unfixed end of the unit element is not separated in the first direction of the stator layer. A stopper structure is formed for the unfixed end of the unit element formed on the surface of the stator layer at a predetermined interval in one direction, so that continuous piezoelectric power generation is performed in a non-contact manner,
The length between the outer and inner ends of the unit element in the second direction is l, the maximum deformable maximum displacement of the unit element in the second direction is dmax, and the thickness of the unit element in the first direction say t,
In the stopper structure, the width of the space in which the unit element is inserted into the stopper is denoted as s, and the length of the stopper protruding so that the unfixed end of the unit element does not deviate in the first direction of the stator layer is p If you say,
Even if one of the outer or inner ends of the unit element is not fixedly supported in the second direction, the permanent magnet (s) of the unit element is subjected to attractive force and repulsive force by the permanent magnet (r) of the rotor layer. Even if only the intermediate position of the unit element moves in the first direction of the stator layer, the unfixed end of the unit element does not deviate in the first direction of the stator layer,

And, so that the unit element can be fitted into the stopper, s> t,
Non-contact continuous piezoelectric generator using magnetic force.
delete The method according to claim 1 or 3,
The sum of the angular differences of the m permanent magnets of the k-th stator layer and the m permanent magnets of the (k+1)-th stator layer in the third direction is θ _k , where θn is n It is called the sum of the difference between the angles of the m permanent magnets of the first stator layer and the m permanent magnets of the first stator layer, and _{the positive direction of θ k} is a visual or counterclockwise direction among the third directions. If you choose either,

Is,
Where l is an integer,
Non-contact continuous piezoelectric generator using magnetic force.
The method of claim 5,
θ ₁ = θ ₂ = ... = θ _k = ... = θ _n = ±360 degrees/n,

sign,
Non-contact continuous piezoelectric generator using magnetic force.
The method of claim 6,
The unit element is made of stainless steel (SUS), which is an intermediate intermediate between the permanent magnet (s) and the piezoelectric element, and the permanent magnet (s) and the piezoelectric element, and the permanent magnet (s) And the intermediate medium is bonded with an adhesive, and the piezoelectric element and the intermediate medium are also bonded with an adhesive,
Non-contact continuous piezoelectric generator using magnetic force.
The method of claim 7,
The unit element includes a two-layer piezoelectric element including one more piezoelectric element,
The unit element including the two-layered piezoelectric element includes an upper piezoelectric element, stainless steel as an upper intermediate medium in the lower part, a permanent magnet (s) in the lower part, stainless steel as a lower intermediate medium in the lower part, and a lower part. It is made of piezoelectric elements, and each of them is bonded with an adhesive.
Non-contact continuous piezoelectric generator using magnetic force.
The method of claim 8,
In the unit element, a plurality of perforations are provided in stainless steel (SUS), which is the intermediate medium, so that adhesion between the piezoelectric element and the intermediate medium can be strengthened and the maximum displacement dmax of the unit element can be increased. It characterized in that the number of perforations is increased so that the number of perforations can be flexibly deformed in response to large deformation of the unit element as it goes toward the end of the unit element that is not fixed among the outer and inner ends,
Non-contact continuous piezoelectric generator using magnetic force.
The method of claim 9,
In the unit element, characterized in that the piezoelectric element is coated with a nickel thin film and reinforced so that the maximum displacement dmax of the unit element can be increased.
Non-contact continuous piezoelectric generator using magnetic force.
The method of claim 9,
In the unit element, characterized in that the piezoelectric element is reinforced by covering a mesh made of stainless steel (SUS) on the piezoelectric element so that the maximum displacement dmax of the unit element can be increased,
Non-contact continuous piezoelectric generator using magnetic force.

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