阅读说明：本技术 一种能量采集器 (Energy collector ) 是由 陈文国 于 2020-12-14 设计创作，主要内容包括：本发明公开了一种能量采集器,包括：盖板,盖板设置有相对布置的两个；限位板位于两个盖板之间且在其板面均布有多个限位通孔,限位通孔内填充有常温液态金属；磁板嵌装在盖板上；线组由一至多根导线组成,各自位于两个盖板上的导线通过常温液态金属导通,分别位于两个盖板上的导线能够各自任意引出一至多个连接端与负载的一至多个输入端各自接通,且多根导线与外部负载连接的一端能够相互接通形成闭合的线圈。本发明通过将具有良好的流动性的常温液态金属应用到能量采集器中,该设置能够保证该能量采集器能够接收非常微小的振动,并有效的将其转化为电动势；通过设置盖板以及限位板,该设置能够有效的将常温液态金属封存在限位通孔内部。(The invention discloses an energy harvester, comprising: the cover plate is provided with two oppositely arranged cover plates; the limiting plate is positioned between the two cover plates, a plurality of limiting through holes are uniformly distributed on the surface of the limiting plate, and normal-temperature liquid metal is filled in the limiting through holes; the magnetic plate is embedded on the cover plate; the wire group is composed of one or more wires, the wires on the two cover plates are conducted through normal-temperature liquid metal, one or more connecting ends can be led out of the wires on the two cover plates respectively and are communicated with one or more input ends of a load, and one ends of the wires connected with an external load can be communicated with each other to form a closed coil. According to the invention, the normal-temperature liquid metal with good fluidity is applied to the energy collector, so that the energy collector can receive very tiny vibration and can be effectively converted into electromotive force; through setting up apron and limiting plate, this setting can be effectual with the liquid metal seal of normal atmospheric temperature inside the spacing through-hole.)

1. An energy harvester electrically connected to an external load for converting ambient vibration energy into electrical energy, comprising:

the cover plate (01) is provided with two opposite cover plates (01);

the limiting plates (02) are arranged in parallel to the cover plates (01) and are positioned between the two cover plates (01), a plurality of strip-shaped limiting through holes (020) are radially and uniformly distributed on the limiting plates (02), two side plate surfaces of the limiting plates (02) are respectively in sealing butt joint with the plate surfaces of the cover plates (01), accommodating cavities are formed at positions corresponding to the limiting through holes (020), and normal-temperature liquid metal (03) is filled in the accommodating cavities;

the magnetic plates (04) are arranged in a plurality of numbers, and the magnetic plates (04) are embedded on the plate surfaces of one sides, far away from the limiting plates (02), of the two cover plates (01) and correspond to the limiting plates (02) in position;

the wire group (05) is fixed on one side plate surface of each of the two cover plates (01) close to the limiting plate (02), the wire group (05) corresponds to the limiting through hole (020), the wire group (05) is composed of one or more wires (050), the wires (050) on the two cover plates (01) are conducted through the normal-temperature liquid metal (03), one or more connecting ends of the wires (050) on the two cover plates (01) can be led out at will respectively and are communicated with one or more input ends of an external load, and one ends of the wires (050) connected with the external load can be communicated with each other to form a closed coil.

2. The energy harvester according to claim 1, wherein the plate surface of the cover plate (01) has a symmetrical center, a circular groove (010) for embedding the magnetic plate (04) is formed in the center of one side plate surface of the cover plate (01) away from the position limiting plate (02), a plurality of wire slots (011) are formed in one side plate surface of the cover plate (01) away from the circular groove (010), the wires (050) correspond to the wire slots (011) in position and are respectively embedded in the wire slots (011), a plurality of first through holes (012) are uniformly distributed in the position of the cover plate (01) close to the side edge along the circumferential direction of the cover plate, the plurality of first through holes (012) on the two cover plates (01) correspond to each other in position, and the diameter of the first through holes (012) is 0.3-2 mm.

3. An energy harvester according to claim 2, characterized in that the cover plate (01) is made of a semiconductor material or an insulating material, has a maximum profile diameter of 3-100mm and a maximum thickness of 0.5-5 mm.

4. The energy harvester according to claim 2, characterized in that the plate surface of the limiting plate (02) has a symmetrical center, a plurality of second through holes (021) are uniformly distributed at the position of the limiting plate (02) close to the side edge along the circumferential direction, the second through holes (021) correspond to the first through holes (012), the diameter of the second through holes (021) is 0.3-2mm, the limiting plate (02) is made of a semiconductor material or an insulating material, the maximum contour diameter of the limiting plate is 3-95mm, and the maximum thickness of the limiting plate is 0.05-10 mm.

5. An energy harvester according to claim 2, characterized in that the wire (050) is fixed inside the wire slot (011) by electroplating or sputter deposition, and the wire (050) has a wire width of 0.01-2mm and a length of 2-48 mm.

6. An energy harvester according to claim 1, characterized in that the limiting through hole (020) is a rectangular hole with a width of 0.5-5mm and a length of 0.05-10 mm.

7. The energy harvester according to claim 1, wherein the ambient liquid metal (03) is one of mercury, gallium-based liquid metal, and bismuth-based liquid metal.

8. An energy harvester according to claim 1, characterized in that the magnetic plate (04) is circular in profile and has a diameter of 2-90mm and a thickness of 0.5-4mm, and the magnetic plate (04) is made of a permanent magnetic material with strong magnetism.

Technical Field

The invention relates to the field of energy collection, in particular to an energy collector.

Background

With the continuous development of micro-electro-mechanical system technology, the technical level and the application range of various micro-electro-mechanical devices, such as micro-electronic devices, micro-sensors, portable electronic devices and the like, are continuously expanded, and the micro-electro-mechanical system has wide application prospects in various military and civil fields.

Vibration is the most common and widely existing energy existence form, the Faraday's law of electromagnetic induction is utilized, vibration energy is collected through an energy collection technology, and the vibration energy is converted into electric energy to be stored and used, so that the method is a mature mode internationally at present.

According to the traditional electromagnetic energy collector, a design mode of moving iron, a moving coil or iron coil synchronous vibration is adopted, and according to the analysis of the current domestic and foreign research conditions, although various experimental prototypes are reported successfully, the output power and the output voltage are small, the number of turns of the coil is large, the preparation process is complex, the precision assembly difficulty is large, and the product yield is low.

Therefore, how to provide an energy harvester to overcome the above problems is a problem that needs to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the present invention provides an energy harvester. The problems that the existing energy collector is complex in processing and assembling and low in output voltage are solved.

In order to achieve the purpose, the invention adopts the following technical scheme:

an energy harvester electrically connected to an external load for converting ambient vibrational energy into electrical energy, comprising:

the cover plates are arranged in two opposite directions;

the limiting plates are arranged in parallel to the cover plates and are positioned between the two cover plates, a plurality of long-strip limiting through holes are radially and uniformly distributed on the limiting plates, the plate surfaces on two sides of each limiting plate are respectively in sealing butt joint with the plate surfaces of the cover plates, accommodating cavities are formed in positions corresponding to the limiting through holes, and normal-temperature liquid metal is filled in the accommodating cavities;

the magnetic plates are embedded on the plate surfaces of one sides of the two cover plates, which are far away from the limiting plate, and correspond to the limiting plate in position;

the wire group is fixed on one side plate surface of each of the two cover plates close to the limiting plate, corresponds to the limiting through hole, and consists of one or more wires, the wires on the two cover plates are conducted through the normal-temperature liquid metal, the wires on the two cover plates can be respectively led out one or more connecting ends and one or more input ends of a load to be respectively communicated, and the ends of the wires connected with the external load can be mutually communicated to form a closed coil.

According to the technical scheme, compared with the prior art, the energy collector is provided by applying the normal-temperature liquid metal with good fluidity into the energy collector, the arrangement can ensure that the energy collector can receive very tiny vibration and effectively convert the tiny vibration into electromotive force, the collection sensitivity of vibration energy is high, and the output voltage is high; through setting up apron and limiting plate, this setting is when guaranteeing simple structure workable, also can effectually seal up normal atmospheric temperature liquid metal inside the limit through-hole, prevents that it from spilling.

Preferably, the face of apron has the center of symmetry, the apron is kept away from one side face of limiting plate is offered between two parties and is used for inlaying the dress the circular recess of magnetic sheet, the apron is kept away from a side face of circular recess has seted up the multichannel wire casing, the wire with the wire casing position corresponds and it inlays separately and establishes inside the wire casing, the position that the apron is close to its side has a plurality of through-holes one, two along its circumference equipartition a plurality of on the apron through-holes one corresponds separately the position, the diameter of through-hole one is 0.3-2 mm. This arrangement ensures reliable fixing of the wire and the magnetic plate to the cover plate.

Preferably, the cover plate is made of a semiconductor material or an insulating material, and has a maximum profile diameter of 3-100mm and a maximum thickness of 0.5-5 mm. This setting can guarantee that the apron can be insulating effectively.

Preferably, the plate surface of the limiting plate is provided with a symmetric center, a plurality of second through holes are uniformly distributed in the position, close to the side edge, of the limiting plate along the circumferential direction of the limiting plate, the second through holes correspond to the first through holes in position, the diameter of the second through holes is 0.3-2mm, the limiting plate is made of a semiconductor material or an insulating material, the maximum outline diameter of the limiting plate is 3-95mm, and the maximum thickness of the limiting plate is 0.05-10 mm. This setting can guarantee that the limiting plate can be reliable fix between two apron and guarantee that it has good insulating effect.

Preferably, the wire is fixed inside the wire slot in an electroplating or sputtering deposition mode, and the wire is 0.01-2mm in line width and 2-48mm in length. This setting can guarantee that the reliable fixing of wire is on the apron, avoids it to drop.

Preferably, the limiting through hole is a rectangular hole, the width of the limiting through hole is 0.5-5mm, and the length of the limiting through hole is 0.05-10 mm. The limiting through hole can be guaranteed to have a certain length by the arrangement, and the normal-temperature liquid metal can smoothly flow in the limiting through hole.

Preferably, the normal-temperature liquid metal is one of mercury, gallium-based liquid metal and bismuth-based liquid metal. Mercury has good conductivity and fluidity.

Preferably, the magnetic plate has a circular contour with a diameter of 2-90mm and a thickness of 0.5-4mm, and is made of a permanent magnetic material having strong magnetism. The setting can improve the intensity of limiting plate department magnetic field effectively.

Through the technical scheme, compared with the prior art, the invention discloses and provides the energy collector. The following technical effects can be achieved:

according to the invention, the normal-temperature liquid metal with good fluidity is applied to the energy collector, the arrangement can ensure that the energy collector can receive very tiny vibration and effectively convert the tiny vibration into electromotive force, the collection sensitivity of vibration energy is high, and the output voltage is high; by arranging the cover plate and the limiting plate, the normal-temperature liquid metal can be effectively sealed in the limiting through hole to be prevented from spilling while the simple structure and the easy processing are ensured; the normal-temperature liquid metal is mercury which has good conductivity and fluidity and can ensure reliable electrical connection with the lead; the limiting through holes are arranged in a plurality of numbers, and the arrangement can improve the sensitivity of collecting vibration of the energy collector on one hand and improve the total output voltage of the energy collector on the other hand.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is an overall isometric view of an energy harvester;

FIG. 2 is an isometric view of a cover plate of an energy harvester;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is a second isometric view of a cover plate of an energy harvester;

FIG. 5 is an isometric view of a limiting plate of an energy harvester;

FIG. 6 is an isometric view of a magnetic plate of an energy harvester;

FIG. 7 is a partial isometric view of an energy harvester;

fig. 8 is a partial enlarged view of fig. 7B.

In the figure:

the cover plate 01 is a cover plate, the groove 010 is a circular groove, the wire groove 011 is a wire groove, the through hole 012 is a first limiting plate 02, the through hole 020 is a limiting through hole, the through hole 021 is a second limiting plate 03, the normal temperature liquid metal 04 is a magnetic plate, the wire group 05 is a wire group, and the wire 050 is a wire.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention discloses an energy collector, which can ensure that the energy collector can receive very tiny vibration and effectively convert the tiny vibration into electromotive force by applying normal-temperature liquid metal 03 with good fluidity into the energy collector, and has high collection sensitivity of vibration energy and high output voltage; by arranging the cover plate 01 and the limiting plate 02, the normal-temperature liquid metal 03 can be effectively sealed in the limiting through hole 020 to prevent the normal-temperature liquid metal from being spilled while the simple structure and the easiness in processing are ensured; the normal-temperature liquid metal 03 is mercury which has good conductivity and fluidity and can ensure reliable electrical connection with the lead 050; the plurality of limiting through holes 020 are arranged, and the arrangement can improve the sensitivity of collecting vibration of the energy collector on one hand and can improve the total output voltage of the energy collector on the other hand.

Examples

Referring to fig. 1-8, which are schematic structural diagrams of an embodiment of the present invention in whole and in part, the present invention specifically discloses an energy harvester electrically connected to an external load for converting ambient vibration energy into electrical energy, comprising:

the cover plate 01 is provided with two cover plates 01 which are oppositely arranged;

the metal plate comprises a limiting plate 02, the limiting plate 02 is arranged in parallel with cover plates 01 and is positioned between the two cover plates 01, a plurality of strip-shaped limiting through holes 020 are radially and uniformly distributed on the limiting plate 02, two side plate surfaces of the limiting plate 02 are respectively in sealing butt joint with the plate surfaces of the cover plates 01, an accommodating cavity is formed at the position corresponding to the limiting through holes 020, normal-temperature liquid metal 03 is partially filled in the accommodating cavity, and the surface tension of the normal-temperature liquid metal 03 in the accommodating cavity is greater than or equal to the gravity;

the magnetic plates 04 are arranged in a plurality of numbers, and the magnetic plates 04 are embedded on the plate surfaces of the two cover plates 01, which are far away from the limiting plate 02 respectively, and correspond to the limiting plate 02 in position;

the wire group 05 is radially and uniformly distributed and fixed on one side plate surface of each of the two cover plates 01 close to the limiting plate 02, the wire group 05 corresponds to the limiting through hole 020, the wire group 05 comprises a plurality of wires 050 which are parallel to the length direction of the limiting through hole 020, the wires 050 which are respectively located on the two cover plates 01 and correspond to the limiting through hole 020 are conducted through normal-temperature liquid metal 03, and one end, far away from the limiting plate 02, of each wire 050 is communicated with the input end of a load.

Further specifically, the face of apron 01 has the center of symmetry, apron 01 keeps away from one side face of limiting plate 02 and sets up the circular recess 010 that is used for inlaying dress magnetic sheet 04 between two parties, apron 01 keeps away from one side face of circular recess 010 and has seted up multichannel wire casing 011, wire 050 corresponds with wire casing 011 position and inlays respectively inside wire casing 011, apron 01 is close to its side position and has a plurality of through-holes 012 along its circumference equipartition, a plurality of through-holes 012 on two apron 01 correspond in position separately, the diameter of through-hole 012 is 0.3-2 mm.

More specifically, the cover plate 01 is made of semiconductor materials or insulating materials such as silicon, silicate glass, polymethyl methacrylate, quartz glass, polydimethylsiloxane and the like, is circular or regular polygon with the number of sides of 3-36, has the maximum outline diameter of 3-100mm, and has the maximum thickness of 0.5-5 mm.

More specifically, the plate surface of the limiting plate 02 is provided with a symmetrical center, a plurality of through holes II 021 are uniformly distributed at the position, close to the side edge, of the limiting plate 02 along the circumferential direction, the through holes II 021 correspond to the through holes I012 in position, the diameter of each through hole II 021 is 0.3-2mm, the limiting plate 02 is made of semiconductor materials or insulating materials such as silicon, silicate glass, polymethyl methacrylate, quartz glass, polydimethylsiloxane and the like, is circular or regular polygon with the number of sides of 3-36, has the maximum outline diameter of 3-95mm and the maximum thickness of 0.05-10mm, and the limiting plate 02 and the cover plate 01 are manufactured in an integrated forming mode.

More specifically, the wires 050 are fixed inside the wire slots 011 in an electroplating or sputtering deposition mode, the wire width of the wires 050 is 0.01-2mm, the length of the wires 050 is 2-48mm, the wires 050 are made of conductive metal materials such as copper, nickel and gold, and the number of the wires 050 in one wire group 05 is 2-2000.

More specifically, the limiting through hole 020 is a rectangular hole, the width of the rectangular hole is 0.5-5mm, and the length of the rectangular hole is 0.05-10 mm.

More specifically, the normal temperature liquid metal 03 is mercury, and since the surface tension thereof is greater than or equal to the gravity, the normal temperature liquid metal 03 in fig. 7 and 8 is entirely spherical.

More specifically, the magnetic plate 04 is circular, the diameter of the magnetic plate 04 is 2-90mm, the thickness of the magnetic plate 04 is 0.5-4mm, the magnetic plate 04 is made of a permanent magnetic material with strong magnetism, and the magnetic plate 04 in the embodiment is made of a rubidium-iron-boron magnet.

The working principle of the energy harvester is as follows:

the face of apron 01 is vertical arranges, when this collector vibration strikes, normal atmospheric temperature liquid metal 03 can flow in spacing through-hole 020, and cut two magnetic fields that inlay the magnetic sheet 04 on apron 01 respectively and form, because be located two apron 01 separately and the wire 050 that the position corresponds switches on through normal atmospheric temperature liquid metal 03, the wire 050 is kept away from the one end of limiting plate 02 and is put through with the input of load, normal atmospheric temperature liquid metal can produce the electromotive force when cutting above-mentioned magnetic field, and then can produce the electric current between the load that lies in wire 050 on two apron 01 separately and rather than the electrical property intercommunication, make this energy collector convert into the electric energy with the vibration energy that self received.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.