An energy harvesting device of a crank-slider mechanism contact and separation type origami structure
By using a crank-slider mechanism and an origami-structured energy harvesting device, rotational motion is converted into linear motion to achieve triboelectric power generation, solving the problems of complex structure and high cost of triboelectric nanogenerators, and achieving high-efficiency power generation and flexible adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI POLYTECHNIC UNIV
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-24
AI Technical Summary
Existing triboelectric nanogenerators have complex structures, high manufacturing costs, and limited energy conversion efficiency, which restricts their application and promotion.
An energy harvesting device employing a crank-slider mechanism and a paper-folding structure includes a support plate, a rotating assembly, a crank-slider mechanism, an opening and closing motion structure, and a paper-folding triboelectric power generation structure. The crank-slider mechanism converts rotational motion into linear motion, and the paper-folding triboelectric power generation structure is used to generate triboelectric power.
The overall structure is simple, which reduces manufacturing difficulty and cost, improves friction efficiency, increases contact area, has flexible adaptability, and improves power generation efficiency.
Smart Images

Figure CN224555496U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of power generation technology, and in particular to an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure. Background Technology
[0002] With the escalating global energy crisis and rising demand for green energy, the development of novel, green, and self-powered energy harvesting technologies has become particularly important. Triboelectric nanogenerators (TENGs) have become a research hotspot due to their high efficiency, material diversity, and configuration flexibility. However, existing triboelectric power generation structures generally suffer from problems such as structural complexity, high manufacturing costs, and limited energy conversion efficiency, which restrict their application and promotion. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, which has a simple structure and is easy to manufacture.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] An energy harvesting device for a crank-slider mechanism contacting a detachable origami structure includes: a support plate, a rotating assembly, at least one crank-slider mechanism, at least one opening and closing motion structure, and at least one origami triboelectric power generation structure.
[0006] A support plate, which serves as a support for the energy harvesting device;
[0007] A rotating component, mounted on the support plate, is used to drive the energy harvesting device to move;
[0008] At least one crank-slider mechanism is disposed on the support plate for converting rotational motion into linear motion;
[0009] At least one opening and closing motion structure is disposed on the support plate, and each opening and closing motion structure corresponds to and is connected to each of the crank-slider mechanisms;
[0010] At least one origami triboelectric power generation structure is disposed in the opening and closing motion structure, each origami triboelectric power generation structure corresponds to each opening and closing motion structure, and the opening and closing motion structure drives the origami triboelectric power generation structure to generate triboelectric power.
[0011] Preferably, the rotating assembly includes a driving gear, a driven gear, a rotating shaft, and a bearing, wherein,
[0012] The driving gear is used for active rotation;
[0013] The driven gear consists of four identical gears, which are driven to rotate by the rotation of the driving gear.
[0014] A rotating shaft, one end of which is fixedly connected to the gear shaft hole of each driven gear, and the rotating shaft rotates together with the driven gear;
[0015] The bearing is fixed in four through holes on the support plate and sleeved on the rotating shaft. The other end of the rotating shaft is fixedly connected to the center hole of the disk through the bearing.
[0016] Preferably, the crank-slider mechanism includes a disc, a T-shaped rod, a support block, and a U-shaped rod, wherein...
[0017] A disc is used to drive the rotation of the disc through the rotation of the shaft. The disc is provided with a protruding connecting pin, which is used to convert the rotational motion of the driving gear and the driven gear into the horizontal reciprocating motion of the crank-slider mechanism.
[0018] The T-shaped rod has a slot at its front end, which engages with the connecting pin. As the disc rotates, the T-shaped rod slides horizontally along a direction parallel to the support plate.
[0019] The support block is fixed to the support plate and serves to support the T-shaped rod. Each support block is provided with a through hole, and the through hole is clearance-fitted with the rod on the T-shaped rod.
[0020] The U-shaped rod is fixedly connected to the T-shaped rod. The connecting pin is used to move in the arc-shaped track of the opening and closing plate. The T-shaped rod drives the U-shaped rod to move, thereby driving the opening and closing movement of the opening and closing plate.
[0021] Preferably, the opening and closing motion structure includes a pin, a double-slot block, and an opening and closing plate, wherein...
[0022] A pin, which is fixedly connected to the double-hole slotted block and the opening and closing plate;
[0023] A double-hole slotted block is fixedly connected to the support plate through a reserved slot. Each double-hole slotted block has two through holes. The pin passes through the through holes and connects to the opening and closing plate to ensure that the opening and closing plate moves normally in the double-hole slotted block.
[0024] The opening and closing plate consists of two identical structures. The opening and closing plate is fixed to the double-hole slotted block by the pin. The opening and closing plate is provided with an arc-shaped track. The U-shaped rod moves in the arc-shaped track, converting the horizontal reciprocating motion of the crank-slider mechanism into the opening and closing motion of the opening and closing plate.
[0025] Preferably, the origami triboelectric power generation structure includes an origami structure, a first friction layer, and a second friction layer. The origami structure is disposed in the middle of the opening and closing plate. The opening and closing movement of the opening and closing plate drives the folding movement of the origami structure, thereby causing the first friction layer and the second friction layer to separate.
[0026] Preferably, the origami triboelectric structure has nine layers. Each layer contains a PTFE film with an aluminum electrode to form the first friction layer. An aluminum electrode is provided on the corresponding surface of the first friction layer to form the second friction layer. The origami structure, under the relative movement of the opening and closing plates, allows the first friction layer and the second friction layer to come into contact and separate to generate triboelectric power.
[0027] Preferably, the substrate of the origami structure is made of Kapton film.
[0028] Preferably, the support plate has four circular through holes for supporting the rotating assembly, and four rectangular blind holes for fixing the support block. The support plate also has slots around its perimeter for connecting the double-hole groove block.
[0029] Preferably, the crank-slider mechanism, the opening and closing motion structure, and the paper-folding triboelectric power generation structure are all configured in four parts.
[0030] The beneficial effects of this utility model are as follows:
[0031] (1) This utility model includes a support plate, a rotating component, a crank-slider mechanism, an opening and closing motion structure, and a paper-folding friction power generation structure. By cleverly designing the crank-slider mechanism and the paper-folding structure, the various components are organically combined. The overall structure is simple, reducing complex parts and connection methods, which not only reduces manufacturing difficulty but also reduces costs.
[0032] (2) This utility model utilizes the origami structure to make full use of the space between the two opening plates, which greatly increases the contact area, which is conducive to improving the power generation effect and making the friction efficiency higher.
[0033] (3) Because the present invention adopts a paper-folding structure, the device has a certain degree of flexibility and is more adaptable to some application scenarios that require structural flexibility. Attached Figure Description
[0034] The following is a brief explanation of the content and markings in each of the accompanying drawings in this utility model specification:
[0035] Figure 1 This is a general schematic diagram of an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application.
[0036] Figure 2 This is a schematic diagram of a support plate for an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application.
[0037] Figure 3 This is a schematic diagram of the rotating component of an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application.
[0038] Figure 4 This is a schematic diagram of the crank-slider mechanism of an energy harvesting device with a crank-slider mechanism and a contact separation origami structure, provided as an embodiment of this application.
[0039] Figure 5 This is a schematic diagram of the opening and closing motion structure of an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application.
[0040] Figure 6 This is a schematic diagram of the origami triboelectric power generation structure of an energy harvesting device with a crank-slider mechanism contact separation origami structure, provided as an embodiment of this application.
[0041] Figure label:
[0042] 1. Support plate
[0043] 2. Drive gear
[0044] 3. Driven gear
[0045] 4. Shaft
[0046] 5. Disc
[0047] 6. T-shaped bar
[0048] 7. Support block
[0049] 8. U-shaped rod
[0050] 9. Pins
[0051] 10. Double-hole slotted block
[0052] 11. Hinged panel
[0053] 12. Origami Structure
[0054] 13. Bearings
[0055] 14. First friction layer
[0056] 15. Second friction layer Detailed Implementation
[0057] The following detailed description, with reference to the accompanying drawings, further illustrates the specific embodiments of this utility model, including the shape and structure of each component, the relative positions and connections between the parts, the functions and working principles of each part:
[0058] Please see Figure 1 , Figure 1 This is a general schematic diagram of an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application. The present invention provides an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, comprising: a support plate, a rotating assembly, at least one crank-slider mechanism, at least one opening and closing motion structure, and at least one origami triboelectric power generation structure. The support plate 1 serves as a support for the energy harvesting device; the rotating assembly is disposed on the support plate 1 and drives the energy harvesting device to move; at least one crank-slider mechanism is disposed on the support plate 1 and converts rotational motion into linear motion; at least one opening and closing motion structure is disposed on the support plate 1, each opening and closing motion structure corresponding to and connected to each crank-slider mechanism; at least one origami triboelectric power generation structure is disposed within the opening and closing motion structure, each origami triboelectric power generation structure corresponding to each opening and closing motion structure, and the opening and closing motion structure drives the origami triboelectric power generation structure to generate electricity through triboelectricity.
[0059] Please see Figure 2 , Figure 2 This is a schematic diagram of a support plate for an energy harvesting device with a crank-slider mechanism and a contact-separated origami structure, provided in an embodiment of this application. The support plate 1 has four circular through holes for supporting the rotating component, and four rectangular blind holes for fixing the support block 7. The support plate 1 has slots around its perimeter for connecting the double-hole groove block 10.
[0060] Please see Figure 3 , Figure 3 This is a schematic diagram of the rotating assembly of an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application. The rotating assembly includes a driving gear 2, a driven gear 3, a rotating shaft 4, and a bearing 13. The driving gear 2 is used for active rotation; the driven gears 3 are four identical gears, which drive the driven gears 3 to rotate through the rotation of the driving gear 2; one end of each rotating shaft 4 is fixedly connected to the gear shaft hole of each driven gear 3, and the rotating shaft 4 rotates together with the driven gear 3; the bearing 13 is fixed in four through holes on the support plate 1 and sleeved on the rotating shaft 4, and the other end of the rotating shaft 4 is fixedly connected to the center hole of the disk 5 through the bearing 13.
[0061] Please see Figure 4, Figure 4 This is a schematic diagram of the crank-slider mechanism of an energy harvesting device with a crank-slider mechanism and a contact separation origami structure, provided as an embodiment of this application. The crank-slider mechanism includes a disc 5, a T-shaped rod 6, a support block 7, and a U-shaped rod 8. The disc 5 is rotated by the rotation of the shaft 4. The disc 5 has a protruding connecting pin, which converts the rotational motion of the driving gear 2 and the driven gear 3 into the horizontal reciprocating motion of the crank-slider mechanism. The front end of the T-shaped rod 6 has a slot that engages with the connecting pin. As the disc 5 rotates, the T-shaped rod 6 slides horizontally along a direction parallel to the support plate 1. The support block 7 is fixed to the support plate 1 and supports the T-shaped rod 6. Each support block 7 has a through hole that engages with the rod on the T-shaped rod 6. The U-shaped rod 8 is fixedly connected to the T-shaped rod 6. The connecting pin moves in the arc-shaped track of the opening and closing plate 11. The T-shaped rod 6 drives the U-shaped rod 8, thereby driving the opening and closing motion of the opening and closing plate 11.
[0062] Please see Figure 5 , Figure 5 This is a schematic diagram of the opening and closing motion structure of an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, provided in an embodiment of this application. The opening and closing motion structure includes a pin 9, a double-slot block 10, and an opening / closing plate 11. The pin 9 is fixedly connected to the double-slot block 10 and the opening / closing plate 11. The double-slot block 10 is fixedly connected to the support plate 1 via a pre-reserved slot. Each double-slot block 10 has two through holes, through which the pin 9 passes and connects to the opening / closing plate 11 to ensure normal movement of the opening / closing plate 11 within the double-slot block 10. The opening / closing plate 11 consists of two identical structures, fixed to the double-slot block 10 by the pin 9. An arc-shaped track is provided on the opening / closing plate 11, and the U-shaped rod 8 moves within this track, converting the horizontal reciprocating motion of the crank-slider mechanism into the opening and closing motion of the opening / closing plate.
[0063] Please see Figure 6 , Figure 6 This is a schematic diagram of a triboelectric power generation structure for an energy harvesting device with a crank-slider mechanism contact separation triboelectric structure, provided in an embodiment of this application. The triboelectric power generation structure includes a triboelectric structure 12, a first friction layer 14, and a second friction layer 15. The triboelectric structure 12 is disposed in the middle of the opening and closing plate 11. The opening and closing movement of the opening and closing plate 11 drives the folding movement of the triboelectric structure 12, thereby causing the first friction layer 14 and the second friction layer 15 to separate from each other.
[0064] Specifically, the origami structure substrate uses Kapton film, and the origami triboelectric structure has nine layers. Each layer contains a PTFE film with aluminum electrodes to form the first friction layer 14. An aluminum electrode is provided on the corresponding surface of the first friction layer 14 to form the second friction layer 15. Under the relative movement of the opening and closing plates 11, the origami structure 12 causes the first friction layer 14 and the second friction layer 15 to come into contact with each other and separate to generate triboelectric power.
[0065] In summary, this utility model discloses an energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, comprising: a support plate, a rotating assembly, at least one crank-slider mechanism, at least one opening and closing motion structure, and at least one origami triboelectric power generation structure. Through optimized structural design, this utility model uses a single driving gear to drive four driven gears in rotational motion, and utilizes the characteristics of the crank-slider mechanism to convert rotational motion into linear motion. The overall structure is simple, reducing complex parts and connection methods, thus lowering both manufacturing difficulty and cost. Furthermore, by using an origami structure, energy conversion is achieved through the coupling effect of triboelectric charging and electrostatic induction in the triboelectric nano-power generation structure. The origami structure fully utilizes the space between the two opening and closing plates, significantly increasing the contact area and improving power generation efficiency, resulting in higher frictional efficiency. Moreover, the origami structure possesses a certain degree of flexibility, making it adaptable to applications requiring structural flexibility.
[0066] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, other embodiments derived without departing from the technical solution of the present invention should be included within the protection scope of the present invention.
Claims
1. An energy harvesting device with a crank-slider mechanism and a contact-separation origami structure, characterized in that, include: The structure comprises a support plate, a rotating assembly, at least one crank-slider mechanism, at least one opening and closing motion structure, and at least one paper-folding triboelectric power generation structure, wherein... Support plate (1), which serves as a support for the energy harvesting device; A rotating component, which is mounted on the support plate (1), is used to drive the energy harvesting device to move; At least one crank-slider mechanism is disposed on the support plate (1) for converting rotational motion into linear motion; At least one opening and closing motion structure is disposed on the support plate (1), and each of the opening and closing motion structures corresponds to and is connected to each of the crank-slider mechanisms; At least one origami triboelectric power generation structure is disposed in the opening and closing motion structure, each origami triboelectric power generation structure corresponds to each opening and closing motion structure, and the opening and closing motion structure drives the origami triboelectric power generation structure to generate triboelectric power.
2. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 1, characterized in that: The rotating assembly includes a driving gear (2), a driven gear (3), a rotating shaft (4), and a bearing (13), wherein, The driving gear (2) is used for active rotation; The driven gears (3) are four identical gears, which drive the driven gears (3) to rotate through the rotation of the driving gear (2); A rotating shaft (4) is fixedly connected at one end to the gear shaft hole of each driven gear (3), and the rotating shaft (4) rotates together with the driven gear (3); The bearing (13) is fixed in four through holes on the support plate (1) and sleeved on the rotating shaft (4). The other end of the rotating shaft (4) is fixedly connected to the center hole of the disk (5) through the bearing (13).
3. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 2, characterized in that: The crank-slider mechanism includes a disc (5), a T-shaped rod (6), a support block (7), and a U-shaped rod (8), wherein... The disc (5) is used to drive the rotation of the disc (5) by the rotation of the shaft (4). The disc (5) is provided with a protruding connecting pin, which is used to convert the rotational motion of the driving gear (2) and the driven gear (3) into the horizontal reciprocating motion of the crank-slider mechanism. The T-shaped rod (6) has a slot at its front end, which engages with the connecting pin. As the disc (5) rotates, the T-shaped rod (6) slides horizontally along a direction parallel to the support plate (1). Support block (7), which is fixed on the support plate (1) and serves to support the T-shaped rod (6). Each support block (7) is provided with a through hole, and the through hole is in clearance fit with the rod on the T-shaped rod (6). The U-shaped rod (8) is fixedly connected to the T-shaped rod (6). The connecting pin is used to move in the arc track of the opening and closing plate (11). The T-shaped rod (6) drives the U-shaped rod (8) to move, thereby driving the opening and closing movement of the opening and closing plate (11).
4. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 3, characterized in that: The opening and closing motion structure includes a pin (9), a double-groove block (10), and an opening and closing plate (11), wherein... Pin (9), which is fixedly connected to the double-hole slotted block (10) and the opening and closing plate (11); The double-hole slotted block (10) is fixedly connected to the support plate (1) through a reserved slot. Each double-hole slotted block (10) has two through holes. The pin (9) passes through the through holes and is connected to the opening and closing plate (11) to ensure that the opening and closing plate (11) moves normally in the double-hole slotted block (10). The opening and closing plate (11) is composed of two identical structures. The opening and closing plate (11) is fixed to the double-hole slot block (10) by the pin (9). The opening and closing plate (11) is provided with an arc track. The U-shaped rod (8) moves in the arc track and converts the horizontal reciprocating motion of the crank slider mechanism into the opening and closing motion of the opening and closing plate (11).
5. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 4, characterized in that: The origami triboelectric power generation structure includes an origami structure (12), a first friction layer (14), and a second friction layer (15). The origami structure (12) is located in the middle of the opening and closing plate (11). The opening and closing movement of the opening and closing plate (11) drives the folding movement of the origami structure (12), thereby causing the first friction layer (14) and the second friction layer (15) to separate from each other.
6. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 5, characterized in that: The origami triboelectric structure has nine layers. Each layer has a PTFE film with an aluminum electrode, forming the first friction layer (14). An aluminum electrode is provided on the corresponding surface of the first friction layer (14), forming the second friction layer (15). The origami structure (12) is in relative motion with the opening and closing plate (11) so that the first friction layer (14) and the second friction layer (15) come into contact with each other and separate to generate triboelectric power.
7. The energy harvesting device for a crank-slider mechanism contact separation origami structure according to claim 6, characterized in that: The base of the origami structure (12) is made of Kapton film.
8. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 4, characterized in that: The support plate (1) is provided with four circular through holes for supporting the rotating component. The support plate (1) is also provided with four rectangular blind holes for fixing the support block (7). The support plate (1) has slots around its perimeter for connecting the double-hole slot block (10).
9. The energy harvesting device of the crank-slider mechanism contact separation origami structure according to claim 1, characterized in that: The crank-slider mechanism, the opening and closing motion structure, and the paper-folding triboelectric power generation structure are all configured in four parts.