Dual-mode synchronous power generation device and piezoelectric gantry

Abstract

The dual-mode synchronous power generation device comprises a shell, and a shifting fork mechanism, a horizontal movement arm, a cantilever power generation module and a stack power generation module are arranged in the shell; the horizontal moving arms are arranged in the shell, the stack power generation modules are arranged at the two ends of the shell and located at the ends of the motion trail of the horizontal moving arms, the horizontal moving arms are connected with the wind power collecting device through the shifting fork mechanism, and the shifting fork mechanism is used for converting rotary motion of the wind power collecting device into linear reciprocating motion of the horizontal moving arms. The horizontal movement arm can apply horizontal pressure stress to the stack power generation module; the cantilever power generation module comprises a plurality of cantilever piezoelectric units which are arranged at intervals, each cantilever piezoelectric unit comprises two cantilevers, the two cantilevers are symmetrically arranged along the horizontal movement arm, the two ends of each cantilever are connected with the shell and the horizontal movement arm, and the horizontal movement arm can enable the cantilever piezoelectric units to perform wing flapping actions; the dual-mode synchronous power generation device is excellent in energy collection efficiency, environmental adaptability, economic benefits and the like, and has wide application prospects and popularization values.

Description

Technical Field

[0001] The invention relates to the field of road engineering, and in particular to a dual-mode synchronous power generation device and a piezoelectric gantry. Background Art

[0002] At present, the quality of power supply and consumption on highways is unbalanced and the management pressure is relatively high. Exploring new ways to expand the supply of clean energy in the road field has great practical significance for promoting all-weather traffic on highways. Road piezoelectric power generation technology can collect and convert the abundant mechanical energy in the road environment into electrical energy, but it is limited by factors such as vibration rolling frequency, structural reliability, and environmental weather. The efficiency of road buried or implanted piezoelectric power generation methods is low, and the actual application and maintenance costs are relatively high. In contrast, the road-attached piezoelectric power generation method is more feasible. Therefore, a self-powered road-attached structure with reasonable structure suitable for practical application is designed to better realize piezoelectric power generation in the road environment and expand new ways to supply clean energy in the road field, while fully protecting the integrity of the road structure and the stability of road performance. Summary of the invention

[0003] In view of the problems existing in the prior art, the present invention provides a dual-mode synchronous power generation device and a piezoelectric gantry, which effectively improve the applicability of energy collection and conversion in road environments and meet the all-weather traffic guarantee for highways under complex weather conditions and in remote conditions such as mountainous areas.

[0004] The present invention is achieved through the following technical solutions: In a first aspect, the present application provides a dual-mode synchronous power generation device, including a housing, a wind power collection device is arranged on the outside of the housing, and a fork mechanism, a horizontal motion arm, a cantilever power generation module and a stack power generation module are arranged inside the housing; The horizontal motion arm is arranged in the shell, and the stacked power generation modules are arranged at both ends of the shell and are located at the ends of the motion track of the horizontal motion arm. The horizontal motion arm is connected to the wind collection device through a fork mechanism. The fork mechanism is used to convert the rotational motion of the wind collection device into the linear reciprocating motion of the horizontal motion arm. The movement of the horizontal motion arm can apply horizontal compressive stress to the stacked power generation module. The cantilever power generation module includes a plurality of cantilever piezoelectric units arranged at intervals, and the cantilever piezoelectric unit includes two cantilevers, which are symmetrically arranged along a horizontal motion arm. Both ends of the cantilever are connected to a shell and a horizontal motion arm, and the horizontal motion arm can make the cantilever piezoelectric unit perform flapping motion.

[0005] Preferably, the wind collection device comprises blades and a rotating shaft, wherein the blades are arranged at the upper end of the rotating shaft, and the lower end of the rotating shaft extends into the housing and is connected to the fork mechanism.

[0006] Preferably, the fork mechanism comprises a guide block, a transmission shaft and a rotating arm; One end of the transmission shaft is connected to the wind collection device, and the other end of the transmission shaft is fixedly connected to one end of the rotating arm. A guide groove is provided in the guide block, and the other end of the rotating arm is located in the guide groove. The guide block is connected to the horizontal motion arm, and the guiding direction of the guide groove is perpendicular to the motion direction of the horizontal motion arm.

[0007] Preferably, the wind collection device is connected to the transmission shaft via a steering gear set.

[0008] Preferably, a limit support is provided in the shell, and the horizontal motion arm is slidably connected to the limit support.

[0009] Preferably, the stacked power generation module comprises two stacked piezoelectric units, which are symmetrically arranged along the axial direction of the horizontal motion arm. An actuating panel is arranged at the end of the horizontal motion arm, and the actuating panel covers the two stacked piezoelectric units.

[0010] Preferably, a buffer device is provided between the two stacked piezoelectric units.

[0011] Preferably, the cantilever piezoelectric unit comprises two cantilevers, the two cantilevers are symmetrically arranged along the horizontal motion arm, one end of the two cantilevers close to the cantilever is rotatably connected to the horizontal motion arm, and the other end of the cantilever is rotatably connected to the housing; The cantilevers on the same side of the multiple cantilever piezoelectric units are electrically connected in series via a metal limiting rod.

[0012] Preferably, the cantilever power generation module and the stack power generation module are connected via a collection circuit module.

[0013] In a second aspect, the present application provides a gantry device for a highway, comprising a gantry, on which a load device and the dual-mode synchronous power generation device are arranged; The dual-mode synchronous power generation device is connected to the energy storage device, and the load device is connected to the energy storage device.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: The present application provides a dual-mode synchronous power generation device, including a cantilever power generation module and a stack power generation module. Relying on capturing vehicle airflow and natural wind within the road area, the wind energy is converted into mechanical energy of horizontal reciprocating motion through a fork mechanism, and piezoelectric excitation is performed on the cantilever power generation module and the stack power generation module at the same time, to achieve dual-mode synchronous piezoelectric excitation and equivalent energy collection, effectively solving the drawbacks of low piezoelectric excitation efficiency, intermittent and disordered energy collection in the open load rolling mode, and solving the problems of low piezoelectric excitation efficiency and intermittent and disordered energy collection in a single mode (such as relying only on wind power or vehicle rolling). Dual-mode operation not only improves the continuity and stability of energy collection, but also significantly improves the efficiency of energy conversion. The dual-mode synchronous power generation device performs well in terms of energy collection efficiency, environmental adaptability, self-power supply and self-maintenance functions, structural rationality, and economic benefits, and has broad application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the internal structure of the dual-mode synchronous power generation device of the present invention; Figure 2 It is a structural schematic diagram of the connecting rod structure of the present invention; Figure 3 It is a structural schematic diagram of the cantilever piezoelectric unit of the present invention; Figure 4 It is a structural schematic diagram of the actuating panel of the present invention; Figure 5 It is a schematic diagram of the structure of the gear set of the present invention; Figure 6 It is a structural schematic diagram of the first gantry of the present invention; Figure 7 It is a structural schematic diagram of a second gantry of the present invention; Figure 8 This is a power supply principle diagram of the dual-mode synchronous power generation device of the present invention.

[0017] In the figure: a dual-mode synchronous power generation device (1), a wind power collection device (2), a cantilever power generation module (3), a stacked power generation module (4), a collection circuit module (5), a housing (1-1), an integrated bearing (1-2), a limit groove (1-3), a side wall inner base (1-4), a cable output port (1-5), a blade (2-1), a rotating shaft (2-2), a fork mechanism (2-3), a limit support (2-4), an actuating panel (2-5), and a buffer spring member (2-6). The connecting rod mechanism (2-3) comprises a transmission shaft (2-3-1), a rotating arm (2-3-2), a horizontal motion arm (2-3-3), a cantilever piezoelectric unit (3-1), a convex fixed support section (3-2), a concave fixed valve (3-3), a rubber pad (3-4), a metal limit rod (3-5), an insulating gasket (4-1), a stacked piezoelectric unit (4-2), a spring unit (4-3), a cantilever piezoelectric circuit board (5-1), a stacked piezoelectric circuit board (5-2), an integrated cable (5-3), and an energy storage capacitor (5-4). DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0020] See also Figure 1-5 A dual-mode synchronous power generation device includes a shell 1-1, a wind collection device 2 is arranged on the outside of the shell, and a fork mechanism, a horizontal motion arm 2-3-3, a cantilever power generation module 3, a stack power generation module 4 and a collection circuit module 5 are arranged inside the shell.

[0021] The horizontal motion arm 2-3-3 is arranged in the shell, and the stacked power generation module 4 is arranged at both ends of the shell and located at the end of the motion track of the horizontal motion arm. The horizontal motion arm is connected to the wind collection device through a fork mechanism. The fork mechanism is used to convert the rotational motion of the wind collection device into a linear reciprocating motion of the horizontal motion arm. The movement of the horizontal motion arm can apply horizontal compressive stress to the stacked power generation module 4; The cantilever power generation module 3 includes a plurality of cantilever piezoelectric units 3-1 arranged at intervals, the cantilever piezoelectric unit includes two cantilevers, the two cantilevers are symmetrically arranged along the horizontal motion arm, the two ends of the cantilever are connected to the housing and the horizontal motion arm, and the horizontal motion arm can make the cantilever piezoelectric unit perform flapping motion; The cantilever power generation module 3 and the stack power generation module 4 are connected to the collection circuit module 5 respectively.

[0022] In some embodiments, the wind collection device is used to collect kinetic energy of wind and input it into the fork structure, thereby causing the horizontal motion arm to reciprocate.

[0023] The wind collection device includes blades 2-1 and a rotating shaft 2-2. The blades 2-1 are arranged at the upper end of the rotating shaft. The lower end of the rotating shaft extends into the shell and is connected to the fork mechanism. The blades rotate under the drive of wind and then drive the rotating shaft to rotate. In order to ensure the stability of the rotating shaft, an integrated bearing 1-2 is arranged at the connection between the rotating shaft and the shell.

[0024] In some embodiments, the fork mechanism 2-3 includes a guide block, a transmission shaft 2-3-1 and a rotating arm 2-3-2, one end of the transmission shaft is meshed with the lower end of the rotating shaft, the other end of the transmission shaft is fixedly connected to one end of the rotating arm, a guide groove is provided in the guide block, the other end of the rotating arm is located in the guide groove, the guide block is connected to the middle part of the horizontal motion arm, and the guiding direction of the guide groove is perpendicular to the movement direction of the horizontal motion arm.

[0025] The core of the fork mechanism is to convert the rotational force into horizontal force through the guide groove. During the working process, the rotating shaft drives the transmission shaft to rotate, and the transmission shaft drives the rotating arm to rotate 360 ​​degrees in one direction. The free end of the rotating arm reciprocates up and down in the guide groove, driving the horizontal motion arm to reciprocate in a straight line.

[0026] In another embodiment, due to the installation position of the wind harvesting device, when the rotating shaft and the transmission shaft are at 90 degrees, the rotating shaft is connected to the transmission shaft through a bevel gear set, and the function of the bevel gear set is to continue to turn the rotation of the rotating shaft. In another embodiment, in order to maintain the movement stability of the horizontal motion arm, a limit support 2-4 is arranged in the shell, the limit support is fixedly connected to the inner wall of the shell, and a guide hole is arranged on the limit support. Two guide holes are arranged at both ends of the limit support. The horizontal motion arm is installed in the two guide holes and reciprocates along the guide holes. A support arm is arranged on the limit support, and the transmission shaft is installed on the support arm.

[0027] Furthermore, the limit support is connected to the horizontal movement arm via a buffer spring member 2-6, which is used to reduce the impact force of the horizontal movement arm on the stacked power generation module and assist the reciprocating movement of the horizontal movement arm. One end of the buffer spring member is connected to the middle part of the horizontal movement arm, and the other end is connected to the bottom of the limit support.

[0028] In another embodiment, the stacked power generation module 4 is divided into two groups, which are respectively arranged at the two ends of the shell. The stacked power generation module 4 includes two stacked piezoelectric units 4-2, a spring unit (4-3) and an insulating gasket 4-1. The two stacked piezoelectric units 4-2 are symmetrically arranged in the shell along the axis of the horizontal motion arm. The reciprocating motion of the horizontal motion arm alternately applies compressive stress to the two stacked piezoelectric units. The two stacked piezoelectric units are provided with spring units. The spring unit 4-3 is used to assist the reciprocating motion of the horizontal motion arm and provide actuating pressure buffer for the stacked piezoelectric unit; the bottom side of the stacked piezoelectric unit 4-2 is fixed in the base 1-4 at the end of the shell inside the side wall, and the outer side is glued and fixed to the force-transmitting insulating gasket 4-1 of the same size; The two ends of the horizontal motion arm are provided with an actuation panel 2-5, which covers two stacked piezoelectric units, thereby applying compressive stress to the two stacked piezoelectric units at the same time. The stacked piezoelectric units are connected through a stacked piezoelectric circuit board 5-2, and the stacked piezoelectric circuit board is connected to the energy storage capacitor 5-4 through a cable for energy storage.

[0029] In another embodiment, the cantilever power generation module 3 includes two groups, which are symmetrically arranged along the axial center of the horizontal motion arm. The cantilever power generation module 3 is connected to the cantilever piezoelectric circuit board 5-1, and the cantilever piezoelectric circuit board is connected to the energy storage module through an integrated cable.

[0030] The cantilever piezoelectric unit comprises two cantilevers, which are symmetrically arranged along a horizontal motion arm, one end of the two cantilevers close to the cantilever is rotatably connected to the horizontal motion arm, and the other end of the cantilever is rotatably connected to a shell, and the rotation direction is the motion direction of the horizontal motion arm. The cantilevers on the same side of the multiple cantilever piezoelectric units are electrically connected in series via a metal limit rod, and the metal limit rod (3-5) is used to tighten and fix each cantilever piezoelectric unit (3-1) and realize electrical series connection.

[0031] The cantilever piezoelectric unit also includes a convex fixed support section 3-2, a plurality of convex fixed support sections are sleeved on the horizontal motion arm, a concave fixed valve 3-3 is provided at the end of the horizontal motion arm, and is used to tighten and clamp each convex fixed support section, the end of the cantilever is clamped between two adjacent convex fixed support sections, a rubber pad 3-4 is provided between the two adjacent convex fixed support sections, and the rubber pad is bonded to the convex fixed support section by coupling glue, so as to clamp and tighten the end of the cantilever. The upper end of the cantilever is embedded in the limiting groove (1-3) of the shell.

[0032] The cantilever piezoelectric circuit board 5-1 is placed in the groove between the shell 1-1 and the base 1-4 inside the side wall and is encapsulated and fixed with epoxy resin; the stacked piezoelectric circuit board 5-2 is placed in the middle groove of the base 1-4 inside the side wall and is encapsulated and fixed with epoxy resin; the integrated cable 5-3 is used to connect the circuit boards, the energy storage capacitor 5-4 and the metal limit rod 3-5 to achieve electrical connection, and a cable output port 1-5 is also provided at the bottom of the shell.

[0033] See also Figure 8 The cantilever piezoelectric unit and the stacked piezoelectric unit are synchronously piezoelectrically excited under the action of the horizontal motion arm, output waveform signals and input into the charge amplifier, the charge amplifier is connected to the full-bridge rectifier element, the full-bridge rectifier element is connected to the storage capacitor, the storage capacitor is connected to the voltage stabilizing element, and the voltage stabilizing element is connected to the load.

[0034] When the dual-mode synchronous power generation device is working, the wind energy is used to drive the fork mechanism to drive the horizontal motion arm to reciprocate, thereby making the cantilever power generation module and the stack power generation module generate electricity. The cantilever piezoelectric unit realizes piezoelectric excitation based on tangential stress actuation, outputs an electrical waveform signal, and performs electrical rectification and energy collection through the cantilever piezoelectric circuit board; the stacked piezoelectric unit realizes piezoelectric excitation based on horizontal compressive stress actuation, outputs an electrical waveform signal, and performs electrical rectification and energy collection through the stacked piezoelectric circuit board; finally, it is synchronously stored in the energy storage capacitor to realize self-power supply; the cantilever piezoelectric unit and the stacked piezoelectric unit are stress-actuated synchronously, so the piezoelectric excitation is at the same frequency, and the output electrical waveform signal period is consistent, which ensures the synchronization of electrical rectification, the same frequency of energy collection, and the compatible and stable energy storage.

[0035] Correspondingly, see Figure 6 The present application also provides a gantry device for a highway, including a gantry, a load device and the above-mentioned dual-mode synchronous power generation device are arranged on the gantry. The dual-mode synchronous power generation device is installed on the column of the gantry, the load device is installed on the crossbeam of the gantry, the dual-mode synchronous power generation device is connected to the energy storage device, and the load device is connected to the energy storage device.

[0036] The load device is a lighting lamp, a monitoring device, or a photoelectric indicating device.

[0037] There are multiple dual-mode synchronous power generation devices, and the multiple dual-mode synchronous power generation devices are evenly installed on two gantries, and the gantries are straddled on the road.

[0038] Correspondingly, see Figure 7 The present application also provides a gantry device for a highway, including a gantry, on which a load device and the above-mentioned dual-mode synchronous power generation device 1 are arranged.

[0039] The dual-mode synchronous power generation device is installed on the crossbeam of the gantry, multiple dual-mode synchronous power generation devices are arranged at intervals, a load device is arranged between two adjacent dual-mode synchronous power generation devices, the dual-mode synchronous power generation device is connected to the energy storage device, and the load device is connected to the energy storage device.

[0040] The gantry captures the vehicle airflow and natural wind force within the road area and realizes dual-mode synchronous piezoelectric excitation and equivalent energy collection, effectively solving the drawbacks of low piezoelectric excitation efficiency, intermittent and disordered energy collection under the open load rolling mode. It has strong environmental applicability and efficient energy conversion.

[0041] The highway piezoelectric gantry device of the present invention can self-power auxiliary electronic equipment such as monitoring, information boards, warning lights, etc., and can realize self-heating and self-cleaning of the gantry structure in severe weather conditions of ice, snow, freezing rain, to ensure that the gantry logo and signage are clear and unobstructed and the electronic equipment operates normally.

[0042] The self-powered gantry device of the present invention has a reasonable structure, simple layout, and strong adaptability. It can be integrated and loaded on various gantries, truss gantries, etc. on highways, as well as various cantilever and column traffic sign poles. It can realize piezoelectric power generation in the road environment and broaden new ways of clean energy supply in the road field without destroying the integrity of the road structure, thereby ensuring stable road performance.

[0043] The above contents are only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A dual-mode synchronous power generation device, characterized in that: It comprises a shell, a wind power collection device is arranged on the outside of the shell, and a fork mechanism, a horizontal motion arm, a cantilever power generation module and a stack power generation module are arranged inside the shell; The horizontal motion arm is arranged in the shell, and the stacked power generation modules are arranged at both ends of the shell and are located at the ends of the motion track of the horizontal motion arm. The horizontal motion arm is connected to the wind collection device through a fork mechanism. The fork mechanism is used to convert the rotational motion of the wind collection device into the linear reciprocating motion of the horizontal motion arm. The movement of the horizontal motion arm can apply horizontal compressive stress to the stacked power generation module. The cantilever power generation module includes a plurality of cantilever piezoelectric units arranged at intervals, and the cantilever piezoelectric unit includes two cantilevers, which are symmetrically arranged along a horizontal motion arm. Both ends of the cantilever are connected to a shell and a horizontal motion arm, and the horizontal motion arm can make the cantilever piezoelectric unit perform flapping motion.

2. A dual-mode synchronous power generation device according to claim 1, characterized in that: The wind power collection device comprises blades and a rotating shaft. The blades are arranged at the upper end of the rotating shaft. The lower end of the rotating shaft extends into the housing and is connected to the fork mechanism.

3. A dual-mode synchronous power generation device according to claim 1, characterized in that: The fork mechanism comprises a guide block, a transmission shaft and a rotating arm; One end of the transmission shaft is connected to the wind collection device, and the other end of the transmission shaft is fixedly connected to one end of the rotating arm. A guide groove is provided in the guide block, and the other end of the rotating arm is located in the guide groove. The guide block is connected to the horizontal motion arm, and the guiding direction of the guide groove is perpendicular to the motion direction of the horizontal motion arm.

4. A dual-mode synchronous power generation device according to claim 3, characterized in that: The wind power collection device is connected with the transmission shaft through a steering gear set.

5. A dual-mode synchronous power generation device according to claim 1, characterized in that: A limited support is arranged in the shell, and the horizontal motion arm is slidably connected with the limited support.

6. A dual-mode synchronous power generation device according to claim 1, characterized in that: The stacked power generation module comprises two stacked piezoelectric units, which are symmetrically arranged along the axial direction of the horizontal motion arm. An actuating panel is arranged at the end of the horizontal motion arm, and the actuating panel covers the two stacked piezoelectric units.

7. A dual-mode synchronous power generation device according to claim 6, characterized in that: A buffer device is arranged between the two stacked piezoelectric units.

8. A dual-mode synchronous power generation device according to claim 1, characterized in that: The cantilever piezoelectric unit comprises two cantilevers, which are symmetrically arranged along the horizontal motion arm, one end of the two cantilevers close to the cantilever is rotatably connected to the horizontal motion arm, and the other end of the cantilever is rotatably connected to the shell; The cantilevers on the same side of the multiple cantilever piezoelectric units are electrically connected in series via a metal limiting rod.

9. A dual-mode synchronous power generation device according to claim 1, characterized in that: The cantilever power generation module and the stack power generation module are connected via a collection circuit module.

10. A gantry device for a highway, comprising a gantry, on which a load device and a dual-mode synchronous power generation device according to any one of claims 1 to 9 are arranged; The dual-mode synchronous power generation device is connected to the energy storage device, and the load device is connected to the energy storage device.

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