阅读说明：本技术 具有折叠式结构的摩擦发电机 (Friction generator with folding structure ) 是由 王珊 于 2019-04-18 设计创作，主要内容包括：本发明公开了一种具有折叠式结构的摩擦发电机,包括：基底层、第一电极层和第二电极层。本发明提供的具有折叠式结构的摩擦发电机,通过对具有一定硬度、可折叠性和弹性的基底层进行折叠设置以形成摩擦发电机的摩擦折叠式结构,不仅极大地降低了分层组装摩擦发电机的难度,还解决了多层结构的摩擦发电机随使用时间的延长容易出现错层和偏移的问题,增加了摩擦发电机的稳定性,延长了摩擦发电机的使用寿命,同时,也通过该种摩擦折叠式结构实现了在无压力作用于摩擦发电机时的结构自动回弹效果,保证了摩擦发电机在接触分离过程中的稳定性。(The invention discloses a friction generator with a folding structure, which comprises: a substrate layer, a first electrode layer, and a second electrode layer. According to the friction generator with the folding structure, the base layer with certain hardness, foldability and elasticity is folded to form the friction folding structure of the friction generator, so that the difficulty of assembling the friction generator in a layered mode is greatly reduced, the problem that the friction generator with a multi-layer structure is prone to layer staggering and offset along with the prolonging of the service time is solved, the stability of the friction generator is improved, the service life of the friction generator is prolonged, meanwhile, the automatic rebound effect of the structure when no pressure acts on the friction generator is achieved through the friction folding structure, and the stability of the friction generator in the contact separation process is guaranteed.)

1. A friction generator having a folded configuration, comprising: a base layer, a first electrode layer, and a second electrode layer; wherein the content of the first and second substances,

the base layer having a first fold line, a second fold line and a third fold line thereon; after the first folding line, the second folding line and the third folding line are folded, a first combined friction layer and a second combined friction layer are formed on the first side surface of the substrate layer; the first combined friction layer and the first side surface of the substrate layer opposite to the first combined friction layer are in contact friction with each other to form a friction interface; the second combined friction layer and the first side surface of the substrate layer opposite to the second combined friction layer are in contact friction with each other to form a friction interface;

the first electrode layer and the second electrode layer are arranged on the second side surface of the substrate layer, and the first electrode layer and/or the second electrode layer are/is used as an output end of the friction generator with the folding structure.

2. A friction generator with a foldaway configuration as claimed in claim 1, wherein the first fold line and the second fold line divide the base layer into four disposed regions; the third folding line further divides the first setting area and the second setting area which are positioned at the diagonal positions on the substrate layer into four combined setting areas;

after the first folding line, the second folding line and the third folding line are folded, a first combination setting area and a second combination setting area of the first side surface of the substrate layer are spliced into the first combination friction layer, the first combination friction layer is arranged opposite to a third setting area of the first side surface of the substrate layer, the third combination setting area and a fourth combination setting area of the first side surface of the substrate layer are spliced into the second combination friction layer, and the second combination friction layer is arranged opposite to a fourth setting area of the first side surface of the substrate layer;

the third setting area of the first side surface of the substrate layer and the first combined friction layer and/or the second combined friction layer and the fourth setting area of the first side surface of the substrate layer are in mutual contact friction to form a friction interface;

the first electrode layer and the second electrode layer are respectively and correspondingly arranged on a third arrangement area and a fourth arrangement area of the second side surface of the substrate layer.

3. A friction generator with a folded configuration according to claim 2, further comprising: a first friction layer and/or a second friction layer;

the first friction layer is arranged on a third arrangement area of the first side surface of the substrate layer, the first friction layer and the first combined friction layer are arranged oppositely, and the first friction layer and the first combined friction layer are contacted and rubbed with each other to form a friction interface;

the second friction layer is arranged on a fourth arrangement area of the first side surface of the substrate layer, the second friction layer and the second combined friction layer are arranged oppositely, and the second friction layer and the second combined friction layer are in mutual contact friction to form a friction interface.

4. A friction generator with a folded configuration according to claim 2, further comprising: a third friction layer and/or a fourth friction layer;

the third friction layer is arranged on the first combined friction layer on the first side surface of the substrate layer, the third friction layer is arranged opposite to the third arrangement area on the first side surface of the substrate layer, and the third friction layer and the third arrangement area on the first side surface of the substrate layer are in mutual contact and friction to form a friction interface;

the fourth friction layer is arranged on the second combined friction layer on the first side surface of the substrate layer, the fourth friction layer is arranged opposite to the fourth arrangement area on the first side surface of the substrate layer, and the fourth friction layer and the fourth arrangement area on the first side surface of the substrate layer are in mutual contact and friction to form a friction interface.

5. A friction generator with a folded configuration according to claim 2, further comprising: a first friction layer, a second friction layer, a third friction layer and a fourth friction layer; the first friction layer is arranged on a third arrangement area of the first side surface of the substrate layer, the third friction layer is arranged on a first combined friction layer of the first side surface of the substrate layer, the first friction layer and the third friction layer are arranged oppositely, and the first friction layer and the third friction layer are in contact with each other and rub to form a friction interface; the second friction layer is arranged on a fourth arrangement area of the first side surface of the substrate layer, the fourth friction layer is arranged on a second combined friction layer of the first side surface of the substrate layer, the second friction layer and the fourth friction layer are arranged oppositely, and the second friction layer and the fourth friction layer are in contact with each other and rub to form a friction interface.

6. The triboelectric generator with folded configuration of claim 5, wherein the first friction layer is of a different material than the third friction layer and/or the second friction layer is of a different material than the fourth friction layer.

7. A friction generator with a folded configuration according to any of claims 1-6, further comprising: a third electrode layer and a fourth electrode layer;

the third electrode layer and the fourth electrode layer are respectively and correspondingly arranged on the first arrangement area and the second arrangement area of the second side surface of the substrate layer;

the first electrode layer, the second electrode layer, the third electrode layer and/or the fourth electrode layer serve as output ends of the friction generator with the folding structure.

8. A triboelectric generator according to any of claims 1 to 7, in which at least one of the two surfaces constituting the tribological interface is provided with an array of protrusions.

9. A triboelectric generator according to claim 1 or 2, in which the first fold line and the second fold line intersect perpendicularly with each other, the third fold line passes through the intersection of the first fold line and the second fold line, and the third fold line and a set of diagonal bisectors formed by the intersection of the first fold line and the second fold line intersect perpendicularly with each other coincide.

10. A friction generator with a folding structure as claimed in claim 2 or 9, wherein the four installation areas of the base layer have the same shape and size, and the four combined installation areas of the base layer have the same shape and size; alternatively, the first and second electrodes may be,

the four setting areas of the base layer have the same shape and size, and any two combined setting areas at diagonal positions on the base layer have the same shape and size; alternatively, the first and second electrodes may be,

the shape and the size of any two setting areas at the diagonal positions on the base layer are the same, and the shape and the size of the four combined setting areas of the base layer are the same.

11. A triboelectric generator according to claim 1, in which the first, second and third fold lines are folded towards the first side surface of the base layer.

12. A triboelectric generator according to claim 1, in folded configuration, wherein the base layer is square, rectangular or circular in shape.

13. A friction generator with a folding structure as claimed in claim 2, wherein when the base layer is square in shape and the first and second folding lines divide the base layer into four square arrangement areas of the same shape and size, the vertical projection of the friction generator with a folding structure is square according to the shape and size of the first and second combined friction layers being the same as the shape and size of the third and fourth arrangement areas of the base layer after the first, second and third folding lines are folded; alternatively, the first and second electrodes may be,

when the shape of the substrate layer is square, and the first folding line and the second folding line divide the substrate layer into four isosceles right triangle setting areas with the same shape and size, the shape and size of the first combined friction layer and the second combined friction layer are the same as those of the third setting area and the fourth setting area of the substrate layer according to the fact that the first folding line, the second folding line and the third folding line are folded, and the vertical projection of the friction generator with the folding structure is an isosceles right triangle.

14. A triboelectric generator with a foldaway configuration according to claim 1, wherein the substrate layer is a flexible insulating material; the substrate layer is any one of polyethylene terephthalate, polyvinyl chloride, polypropylene and polyethylene.

Technical Field

The invention relates to the technical field of friction power generation, in particular to a friction power generator with a folding structure.

Background

With the continuous improvement of modern living standard and the continuous acceleration of life rhythm, self-generating equipment which is convenient to apply and low in dependence on environment appears. Existing self-generating devices generally utilize the piezoelectric properties of materials. For example, in 2006, the university of georgia professor wangzhonglin, et al, successfully converted mechanical energy into electrical energy in the nanoscale range, developing the smallest generators in the world, nanogenerators. The basic principle of the nano-generator is as follows: when the Nanowire (NWs) is dynamically stretched under an external force, a piezoelectric potential is generated in the nanowire and a corresponding transient current flows across to balance the fermi level.

When objects rub against each other, one of the objects is charged negatively and the other is charged positively, so that electricity generated by the rubbing between the objects is called triboelectricity. Triboelectricity is one of the most common phenomena in nature, but is ignored because it is difficult to collect and utilize. If can with the triboelectricity application in the self-generating equipment, will certainly bring more facilities for people's life.

Disclosure of Invention

The invention provides a friction generator with a folding structure, which is used for solving the problems that the friction generator in the prior art is difficult to assemble in a layering way, the power generation performance and the service life of the friction generator are influenced by the fact that staggered layers and offset easily occur along with the prolonging of the service time of the friction generator with the multilayer structure, and the friction generator cannot be stably contacted and separated.

According to an aspect of the present invention, there is provided a friction generator having a folding structure, comprising: a base layer, a first electrode layer, and a second electrode layer; wherein the content of the first and second substances,

the base layer is provided with a first folding line, a second folding line and a third folding line; after the first folding line, the second folding line and the third folding line are folded, a first combined friction layer and a second combined friction layer are formed on the first side surface of the substrate layer; the first combined friction layer and the first side surface of the substrate layer opposite to the first combined friction layer are contacted and rubbed with each other to form a friction interface; the second combined friction layer and the first side surface of the substrate layer opposite to the second combined friction layer are contacted and rubbed with each other to form a friction interface;

the first electrode layer and the second electrode layer are arranged on the second side surface of the substrate layer, and the first electrode layer and/or the second electrode layer are/is used as an output end of the friction generator with the folding structure.

Optionally, the first fold line and the second fold line divide the base layer into four setting regions; the third folding line further divides the first setting area and the second setting area which are positioned at the diagonal positions on the substrate layer into four combined setting areas;

after the first folding line, the second folding line and the third folding line are folded, a first combination setting area and a second combination setting area of the first side surface of the substrate layer are spliced into a first combination friction layer, the first combination friction layer is arranged opposite to a third setting area of the first side surface of the substrate layer, a third combination setting area and a fourth combination setting area of the first side surface of the substrate layer are spliced into a second combination friction layer, and the second combination friction layer is arranged opposite to a fourth setting area of the first side surface of the substrate layer;

the third setting area of the first side surface of the substrate layer and the first combined friction layer and/or the second combined friction layer and the fourth setting area of the first side surface of the substrate layer are in mutual contact friction to form a friction interface;

the first electrode layer and the second electrode layer are correspondingly arranged on the third arrangement area and the fourth arrangement area of the second side surface of the substrate layer respectively.

Optionally, the friction generator with a folding structure further comprises: a first friction layer and/or a second friction layer;

the first friction layer is arranged on a third arrangement area of the first side surface of the substrate layer, the first friction layer and the first combined friction layer are arranged oppositely, and the first friction layer and the first combined friction layer are contacted and rubbed with each other to form a friction interface;

the second friction layer is arranged on a fourth arrangement area of the first side surface of the substrate layer, the second friction layer and the second combined friction layer are arranged oppositely, and the second friction layer and the second combined friction layer are in contact friction with each other to form a friction interface.

Optionally, the friction generator with a folding structure further comprises: a third friction layer and/or a fourth friction layer;

the third friction layer is arranged on the first combined friction layer on the first side surface of the substrate layer, the third friction layer is arranged opposite to the third arrangement area on the first side surface of the substrate layer, and the third friction layer and the third arrangement area on the first side surface of the substrate layer are in mutual contact friction to form a friction interface;

the fourth friction layer is arranged on the second combined friction layer on the first side surface of the substrate layer, the fourth friction layer is arranged opposite to the fourth arrangement area on the first side surface of the substrate layer, and the fourth friction layer and the fourth arrangement area on the first side surface of the substrate layer are in mutual contact friction to form a friction interface.

Optionally, the friction generator with a folding structure further comprises: a first friction layer, a second friction layer, a third friction layer and a fourth friction layer;

the first friction layer is arranged on a third arrangement area of the first side surface of the substrate layer, the third friction layer is arranged on the first combined friction layer of the first side surface of the substrate layer, the first friction layer and the third friction layer are oppositely arranged, and the first friction layer and the third friction layer are contacted and rubbed with each other to form a friction interface;

the second friction layer is arranged on a fourth arrangement area of the first side surface of the substrate layer, the fourth friction layer is arranged on a second combined friction layer of the first side surface of the substrate layer, the second friction layer and the fourth friction layer are oppositely arranged, and the second friction layer and the fourth friction layer are in mutual contact and friction to form a friction interface.

Optionally, the first friction layer is of a different material than the third friction layer, and/or the second friction layer is of a different material than the fourth friction layer.

Optionally, the friction generator with a folding structure further comprises: a third electrode layer and a fourth electrode layer;

the third electrode layer and the fourth electrode layer are correspondingly arranged on the first arrangement area and the second arrangement area of the second side surface of the substrate layer respectively;

the first electrode layer, the second electrode layer, the third electrode layer and/or the fourth electrode layer are/is used as an output end of the friction generator with the folding structure.

Optionally, at least one of the two surfaces forming the friction interface is provided with a protrusion array structure.

Optionally, the first folding line and the second folding line intersect perpendicularly to each other, the third folding line passes through an intersection point of the first folding line and the second folding line, and the third folding line and a set of diagonal angle bisectors formed after the first folding line and the second folding line intersect perpendicularly to each other coincide.

Optionally, the four setting regions of the base layer have the same shape and size, and the four combined setting regions of the base layer have the same shape and size; alternatively, the first and second electrodes may be,

the shape and the size of the four setting areas of the base layer are the same, and the shape and the size of any two combined setting areas at diagonal positions on the base layer are the same; alternatively, the first and second electrodes may be,

the shape and size of any two setting areas at diagonal positions on the base layer are the same, and the shape and size of the four combined setting areas of the base layer are the same.

Optionally, the first, second and third fold lines are folded towards the first side surface of the substrate layer.

Optionally, the base layer is square, rectangular or circular in shape.

Optionally, when the shape of the base layer is square and the first folding line and the second folding line divide the base layer into four square arrangement areas with the same shape and size, after the first folding line, the second folding line and the third folding line are folded, the shape and size of the first combined friction layer and the second combined friction layer are the same as those of the third arrangement area and the fourth arrangement area of the base layer, and the vertical projection of the friction generator with the folding structure is square; alternatively, the first and second electrodes may be,

when the shape of the substrate layer is square, and the first folding line and the second folding line divide the substrate layer into four isosceles right triangle setting areas with the same shape and size, after the first folding line, the second folding line and the third folding line are folded, the shape and size of the first combined friction layer and the second combined friction layer are the same as those of the third setting area and the fourth setting area of the substrate layer, and the vertical projection of the friction generator with the folding structure is an isosceles right triangle.

Optionally, the base layer is a flexible insulating material; the substrate layer is any one of polyethylene terephthalate, polyvinyl chloride, polypropylene and polyethylene.

According to the friction generator with the folding structure, the base layer with certain hardness, foldability and elasticity is folded to form the friction folding structure of the friction generator, so that the difficulty of assembling the friction generator in a layered mode is greatly reduced, the problem that the friction generator with a multi-layer structure is prone to layer staggering and offset along with the prolonging of the service time is solved, the stability of the friction generator is improved, the service life of the friction generator is prolonged, meanwhile, the automatic rebound effect of the structure when no pressure acts on the friction generator is achieved through the friction folding structure, and the stability of the friction generator in the contact separation process is guaranteed.

Drawings

Fig. 1a, fig. 1b, fig. 1c and fig. 1d are schematic diagrams of a folded structure, a front structure after folding and unfolding, a back structure after folding and unfolding, and a side structure after folding and unfolding, respectively, of a substrate layer of a first embodiment of a friction generator with a folded structure according to the present invention;

fig. 2a, fig. 2b, fig. 2c and fig. 2d are respectively a schematic view of a folded structure, a schematic view of a front side structure after folding and unfolding, a schematic view of a back side structure after folding and unfolding, and a schematic view of a side structure after folding and unfolding of a substrate layer of a second embodiment of the friction generator with a folded structure according to the present invention;

fig. 3a, fig. 3b and fig. 3c are a schematic front structure diagram after folding and unfolding, a schematic back structure diagram after folding and unfolding, and a schematic side structure diagram after folding and unfolding, respectively, of a third embodiment of the friction generator with a folding structure provided by the present invention;

fig. 4a, fig. 4b and fig. 4c are a schematic front structure diagram after folding and unfolding, a schematic back structure diagram after folding and unfolding, and a schematic side structure diagram after folding and unfolding, respectively, of a fourth embodiment of the friction generator with a folding structure provided by the present invention;

fig. 5a, fig. 5b, fig. 5c and fig. 5d are respectively a schematic view of a folded structure, a schematic view of a front structure after folding and unfolding, a schematic view of a back structure after folding and unfolding, and a schematic view of a side structure after folding and unfolding of a substrate layer of a fifth embodiment of a friction generator with a folded structure according to the present invention;

fig. 6a is a schematic view of a reverse structure of a friction generator with a folding structure according to a first embodiment of the present invention after folding and unfolding;

fig. 6b is a schematic view of a reverse structure of a friction generator with a folding structure according to a second embodiment of the present invention after folding and unfolding.

Detailed Description

The present invention will be described in detail with reference to the following embodiments in order to fully understand the objects, features and effects of the invention, but the present invention is not limited thereto.

In order to solve the problems that the friction generator in the prior art is difficult to assemble in a layered mode, the power generation performance and the service life of the friction generator are affected due to the fact that the friction generator with a multi-layer structure is prone to layer staggering and deviation along with the prolonging of the service time, and the friction generator cannot be stably in contact separation.

The invention provides a friction generator with a folding structure, which comprises: a base layer, a first electrode layer, and a second electrode layer; wherein the base layer has a first fold line, a second fold line and a third fold line thereon; after the first folding line, the second folding line and the third folding line are folded, a first combined friction layer and a second combined friction layer are formed on the first side surface of the substrate layer; the first combined friction layer and the first side surface of the substrate layer opposite to the first combined friction layer are contacted and rubbed with each other to form a friction interface; the second combined friction layer and the first side surface of the substrate layer opposite to the second combined friction layer are contacted and rubbed with each other to form a friction interface; the first electrode layer and the second electrode layer are arranged on the second side surface of the substrate layer, and the first electrode layer and/or the second electrode layer are/is used as an output end of the friction generator with the folding structure.

Specifically, the first folding line and the second folding line divide the base layer into four setting regions; the third folding line further divides the first setting area and the second setting area which are positioned at the diagonal positions on the substrate layer into four combined setting areas; after the first folding line, the second folding line and the third folding line are folded, the first combination setting area and the second combination setting area of the first side surface of the substrate layer are spliced into a first combination friction layer and are oppositely arranged with the third setting area of the first side surface of the substrate layer, and the third combination setting area and the fourth combination setting area of the first side surface of the substrate layer are spliced into a second combination friction layer and are oppositely arranged with the fourth setting area of the first side surface of the substrate layer; the third setting area of the first side surface of the substrate layer and the first combined friction layer and/or the second combined friction layer and the fourth setting area of the first side surface of the substrate layer are in mutual contact friction to form a friction interface; the first electrode layer and the second electrode layer are correspondingly arranged on a third arrangement area and a fourth arrangement area of the second side surface of the substrate layer respectively, and the first electrode layer and/or the second electrode layer are/is used as an output end of the friction generator with a folding structure.

The shape of the substrate layer may be square, rectangle, circle, etc., and those skilled in the art can select any shape of substrate layer according to actual needs, which is not limited herein.

In order to make the friction generator with a folding structure provided by the present invention more clearly understood by those skilled in the art, the friction generator with a folding structure provided by the present invention is described in detail below by way of embodiments one to five, but the present invention is not limited thereto.