CN209709974U - A kind of the support deformation structure and piezoelectric generating device of piezoelectric patches/foil gauge - Google Patents

Abstract

The utility model discloses a kind of support deformation structure of piezoelectric patches/foil gauge and piezoelectric generating devices, including support deformation component, and the support deformation component includes bottom plate, and the bottom plate is equipped at least one support deformable member；The support deformable member includes two clamping components being oppositely arranged, two clamping components can clamp piezoelectric patches/foil gauge, leverage component is set between two clamping components, at the top of the piezoelectric patches that the pressure holding side pressure of the leverage component is clamped in a clamping component/foil gauge, the support end of leverage component is supported in piezoelectric patches/foil gauge bottom of another clamping component clamping.The structure can not only preferably fix piezoelectric patches/foil gauge, also more easy for piezoelectric patches/foil gauge assembly and disassembly, and its leverage component can make piezoelectric patches/foil gauge generate bigger deformation quantity.

Description

A support deformation structure of a piezoelectric sheet/strain gauge and a piezoelectric power generation device

technical field

The disclosure relates to a support deformation structure of a piezoelectric sheet/strain gauge and a piezoelectric power generation device.

Background technique

With the acceleration of industrialization and urbanization and the continuous upgrading of the consumption structure, my country's energy demand has grown rigidly, resource and environmental issues are still one of the bottlenecks restricting my country's economic and social development, and energy conservation and emission reduction are still a grim situation and a arduous task.

In recent years, with the in-depth research on piezoelectric materials, the collection of vibration energy has gradually become popular. The collection of vibration energy has the advantages of environmental protection and low cost. The positive piezoelectric effect of piezoelectric materials can convert the vibration energy of moving parts into electrical energy. , and can realize the energy supply of the floor laid on the ground to other microelectronic devices, which is a feasible energy supply method.

The piezoelectric energy harvesting device has the advantages of simple structure, less heat generation, strong anti-interference, etc., and has a good effect on the utilization of mechanical vibration energy, especially in the collection and utilization of micro energy.

At present, piezoelectric sheets/strain gauges are used in the power generation floor to capture the energy of human trampling, but the deformation utilization of piezoelectric sheets/strain gauges only considers a single force, and the piezoelectric sheets/strain gauges are trampled. The deformation of the floor is small, that is, the amount of power generated is small, so the power generation efficiency of the entire power generation floor is low, and it can only be used for short-term electricity demand of low-power electrical appliances.

Utility model content

The purpose of this disclosure is to overcome the deficiencies in the prior art above, and provide a support deformation structure for piezoelectric sheets/strain gauges; this structure can not only better fix piezoelectric sheets/strain gauges, but also provide Assembly and disassembly are also easier, and the lever member can cause the piezoelectric sheet/strain gauge to generate a greater amount of deformation, that is, to generate a greater amount of power generation.

The first purpose of the present disclosure is to propose a support deformation structure of a piezoelectric sheet/strain gauge. To achieve the above-mentioned purpose, the present disclosure adopts the following technical solutions:

A support deformation structure of a piezoelectric sheet/strain gauge, including a support deformation assembly,

The support deformation assembly includes a base plate, and at least one support deformation member is provided on the base plate;

The supporting deformation member includes two oppositely arranged clamping members, both clamping members can clamp the piezoelectric sheet/strain gauge, a lever member is arranged between the two clamping members, and the clamping end of the lever member is pressed on The top of the piezoelectric sheet/strain gauge clamped by one clamping member, and the support end of the lever member is supported on the bottom of the piezoelectric sheet/strain gauge clamped by the other clamping member.

The working principle of the support deformation structure of the present disclosure is:

When the piezoelectric sheet/strain gauge is generated by an external force, the external force acts on the clamping end of the lever member, and the clamping end exerts a downward force on a piezoelectric sheet/strain gauge. Through the force transmission of the lever member, the lever member The support end of the support end acts upwardly on another piezoelectric sheet/strain gauge, which can increase the deformation of the piezoelectric sheet/strain gauge, and then increase the power generation.

As a further technical solution, the clamping member includes at least one fixed clamping block and a movable clamping block, the fixed clamping block is fixedly connected to the bottom plate, and the movable clamping block is detachably connected to the bottom plate.

As a further technical solution, the middle part of the fixed clamping block has a first groove arranged horizontally, and the piezoelectric sheet/strain gauge can be clamped in the first groove.

As a further technical solution, the first groove is set at the set height of the fixed clamping block, so that when the lever member is pressed down under force, all other parts except the end of the lever member will not interact with the piezoelectric sheet/strain gauge. contact interference.

As a further technical solution, there is a second groove arranged horizontally in the middle of the movable clamping block, and the piezoelectric sheet/strain gauge can be clamped in the second groove.

As a further technical solution, the middle part of the lever member is hingedly connected to the bottom plate.

As a further technical solution, the lever member includes a first rod, a fixed part, and a second rod connected in sequence, the fixed part is hinged to the bottom plate, and both the first rod and the second rod are extended outward from the fixed part .

As a further technical solution, the first rod, the fixing part and the second rod are integrally formed.

As a further technical solution, the length of the first rod is greater than the length of the second rod.

As a further technical solution, the bottom of the end of the first rod is provided with a raised pressing block, which can be pressed against the top of the piezoelectric sheet/strain gauge.

As a further technical solution, there is a smooth transition connection between the end of the first rod and the raised pressing block.

As a further technical solution, the top of the end of the second rod is provided with a raised jacking block, and the raised jacking block can be supported on the bottom of the piezoelectric sheet/strain gauge.

As a further technical solution, there is a smooth transition connection between the end of the second rod and the raised top block.

As a further technical solution, two lever members are provided for each of the support deformation members, and the two lever members are symmetrically arranged to cross.

As a further technical solution, the pressing end of one lever member and the supporting end of the other lever member are oppositely arranged at the same clamping member.

The second object of the present disclosure is to propose a piezoelectric generator, comprising the above-mentioned support deformation structure.

The beneficial effects of the disclosure are:

The support deformation structure of the present disclosure can not only better fix the piezoelectric sheet/strain gauge, but also facilitate the assembly and disassembly of the piezoelectric sheet/strain gauge.

In the support deformation structure of the present disclosure, the setting of the lever member is such that when an external force is applied, the pressing end of the lever member acts downward on a piezoelectric sheet/strain gauge, and through the force transmission of the lever member, the supporting end of the lever member Apply upward force to another piezoelectric sheet/strain gauge, the top of the same piezoelectric sheet/strain gauge receives downward force, and the bottom receives upward force, the deformation of the piezoelectric sheet/strain gauge can be doubled, and then Double the power generation.

The support deformation structure of the present disclosure can make the piezoelectric sheet/strain sheet produce as large a micro deformation as possible under the same pressure, and at the same time can play the role of support and protection to ensure that the piezoelectric ceramic sheet will not be moved and deformed due to damaged by excess.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application, and do not constitute improper limitations to the present application.

Figure 1 is a schematic diagram of the overall structure of a support deformation structure disclosed in an embodiment;

Fig. 2 is the front view of the support deformation structure;

Fig. 3 is the structural representation of lever member;

Fig. 4 is the front view of lever member;

Fig. 5 is the structural representation of moving clamping block;

In the figure, 1 base plate, 2 clamping member, 3 piezoelectric sheet/strain gauge, 4 lever member, 5 pressing end, 6 supporting end, 7 fixed clamping block, 8 moving clamping block, 9 groove, 10th One rod, 11 fixed part, 12 second rod, 13 raised pressure block, 14 raised top block.

Detailed ways

It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof;

For the convenience of description, if the words "up", "down", "left" and "right" appear in the present disclosure, they only indicate that they are consistent with the directions of up, down, left and right in the drawings themselves, and do not limit the structure. It is for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present disclosure.

As introduced in the background art, in order to solve the above technical problems, the present application proposes a piezoelectric sheet/strain gauge support deformation structure and a piezoelectric power generation device.

The application provides a support deformation structure of a piezoelectric sheet/strain gauge, including a support deformation assembly,

The support deformation assembly includes a base plate, and at least one support deformation member is provided on the base plate;

The supporting deformation member includes two oppositely arranged clamping members, both clamping members can clamp the piezoelectric sheet/strain gauge, a lever member is arranged between the two clamping members, and the clamping end of the lever member is pressed on The top of the piezoelectric sheet/strain gauge clamped by one clamping member, and the support end of the lever member is supported on the bottom of the piezoelectric sheet/strain gauge clamped by the other clamping member.

Example 1

The supporting deformation structure disclosed in this embodiment will be further described below in conjunction with accompanying drawings 1 to 5;

Referring to Figure 1, the supporting deformation structure of the piezoelectric sheet/strain gauge includes a supporting deformation assembly,

The support deformation assembly includes a bottom plate 1, at least one support deformation member is arranged on the bottom plate 1, and two support deformation members are arranged on the bottom plate 1 in this embodiment;

The supporting deformation member includes two oppositely arranged clamping members 2, both clamping members 2 can clamp the piezoelectric sheet/strain gauge 3, a lever member 4 is arranged between the two clamping members 2, and the middle part of the lever member 4 is hingedly connected to Bottom plate 1; the pressing end 5 of the lever member 4 is pressed on the top of the piezoelectric sheet/strain gauge 3 held by one clamping member 2, and the supporting end 6 of the lever member 4 is supported by the piezoelectric sheet/strain gauge 3 held by the other clamping member 2. Gauge/strain gauge 3 bottom.

As shown in Figure 1, the clamping member 2 includes at least one fixed clamping block 7 and a movable clamping block 8. In this embodiment, two fixed clamping blocks 7 and one movable clamping block 8 are set, and the fixed clamping block 7 Both the clamping block and the moving clamping block 8 are arc-shaped structures, and the three clamping blocks surround a circle, and the piezoelectric sheet/strain gauge 3 is clamped between the three clamping blocks.

The fixed clamping block 7 is fixedly connected to the base plate 1 , and the movable clamping block 8 is detachably connected to the base plate 1 .

The support deformation structure of the present disclosure adopts a three-point positioning method to fix the piezoelectric sheet/strain gauge, the bottom plate fixes two fixed clamping blocks, and after the piezoelectric sheet/strain gauge is installed, the movable clamping block is installed. The simple assembly method makes the disassembly and maintenance of the piezoelectric sheet/strain gauge easier, and the precise assembly ensures the reliability of actual use.

As shown in FIG. 5 , there is a groove 9 arranged horizontally in the middle of the moving clamping block 8 , and the piezoelectric sheet/strain gauge 3 can be clamped in the groove 9 .

There is a groove arranged horizontally in the middle of the fixed clamping block 7, and the piezoelectric sheet/strain gauge can be clamped in the groove. The groove is set the same as the groove 9 of the moving clamping block 8. When clamping the piezoelectric sheet/strain gauge, the piezoelectric sheet/strain gauge is clamped in the groove, so that the clamping member can reliably and stably clamp the pressure gauge. Electric/strain gauges.

The groove of the fixed clamping block 7 is set at the set height of the fixed clamping block 7, so that when the lever member is pressed down under force, other parts except the end of the lever member will not contact and interfere with the piezoelectric sheet/strain gauge .

The supporting deformation structure of the present disclosure relies on the height of the clamping block to limit the sag of the piezoelectric sheet/strain gauge, which can avoid the situation that the deformation of the piezoelectric sheet/strain gauge is too large to be damaged due to excessive pedaling pressure; The deformation of the electric sheet/strain gauge is at the maximum beneficial deformation (for example: the maximum effective deformation of the piezoelectric ceramic sheet is within 3mm);

Compared with the existing mechanical structure, its compression deformation is less than 1.5mm, and there is almost no obvious sinking feeling, and the comfort is better.

As shown in Figures 3-4, the lever member 4 includes a first rod 10, a fixed portion 11, and a second rod 12 connected in sequence, the fixed portion 11 is hinged to the bottom plate 1, and the first rod 10 and the second rod 12 are fixed by The portion 11 extends outward; the length of the first rod 10 is greater than the length of the second rod 12 .

The end of the first rod 10 (that is, the pressing end 5 of the lever member 4) has a raised pressure block 13 at the bottom, and the raised pressure block 13 can be pressed on the top of the piezoelectric sheet/strain gauge 3; the end of the first rod 10 There is a smooth transition connection with the raised pressing block 13 .

The top of the second rod 12 ends (that is, the support end 6 of the lever member 4) has a raised top block 14, and the raised top block 14 can be supported on the bottom of the piezoelectric sheet/strain gauge 3; the second rod 12 ends and Smooth transition connection between the raised top blocks 14 .

When under force, the raised pressure block 13 of the first rod 10 of the lever member 4 presses down on the top of the piezoelectric sheet/strain gauge, and is hinged to the bottom plate by its middle, and the raised top block 14 of the second rod 12 pushes upwards. At the bottom of the piezoelectric sheet/strain gauge, the lever member 4 can simultaneously act on the two piezoelectric sheets/strain gauges under the same pressure to deform the piezoelectric sheet/strain gauge.

As a preferred solution, the first rod 10, the fixing part 11, and the second rod 12 are integrally formed.

In this embodiment, as shown in FIGS. 1-2 , two lever members 4 are provided for each supporting deformation member, and the two lever members 4 are symmetrically arranged to cross.

The pressing end 5 of one of the lever members 4 is opposite to the supporting end 6 of the other lever member 4 at the same clamping member 2, that is: the pressing end 5 of one lever member 4 is pressed on the clamping member 2 to clamp The top of the piezoelectric sheet/strain gauge 3 held by the clamping member 2, the support end 6 of another lever member 4 is supported on the bottom of the piezoelectric sheet/strain gauge 3 clamped by the clamping member 2; the support end 6 of a lever member 4 is supported on the second The bottom of the piezoelectric sheet/strain gauge 3 clamped by the two clamping members 2 , and the pressing end 5 of the other lever member 4 presses on the top of the piezoelectric sheet/strain gauge 3 clamped by the clamping member 2 .

When the piezoelectric sheet/strain gauge is subjected to an external force to generate electricity, the external force acts on the pressing end 5 of the lever member 4, and the raised pressure block 13 of the first rod 10 of the two lever members 4 simultaneously presses down on the two piezoelectric sheets/ The top of the strain gauge is hinged to the bottom plate 1 by the middle part of the lever member 4, and through the force transmission of the lever member, the raised top block 14 of the second rod 12 of the two lever members 4 pushes up against the bottom of the two piezoelectric sheets/strain gauges , that is, when an external force is applied to the upper end of one piezoelectric sheet/strain gauge, the lower end of the other piezoelectric sheet/strain gauge can receive an upward force, and the lever member 4 can simultaneously exert pressure on the two piezoelectric sheets/strain gauges under the same pressure. The strain gauge acts to deform the piezoelectric sheet/strain gauge, and the force on each piezoelectric sheet/strain gauge is doubled. From the perspective of a piezoelectric sheet/strain gauge, its deformation will become a sine (Wave shape), the deformation amount is doubled, which means that the power generation capacity is doubled when the piezoelectric sheet/strain gauge is used for power generation.

Considering the offsetting effect of frictional resistance with the lever, the force on the lower end of the piezoelectric sheet/strain gauge will be slightly reduced, but it should still be relatively large, so the deformation at the lower end can be guaranteed; compared with the same stepping depth before, it can The deformation of the piezoelectric sheet/strain gauge is more than twice that of the piezoelectric sheet/strain gauge, and the power generation of the piezoelectric sheet/strain gauge is proportional to the deformation, thereby improving the power generation efficiency.

The principle of piezoelectric sheet power generation is to deform the piezoelectric sheet to generate electric energy. The supporting deformation structure of the present disclosure enables the piezoelectric sheet to produce as large a micro-deformation as possible under the same pressure, and at the same time, it can play the role of support and protection , to ensure that the piezoelectric sheet will not be damaged due to excessive movement and deformation.

The present disclosure also provides a piezoelectric power generation device, including the support deformation structure as described above, a support plate, and a top plate, and a plurality of support deformation components are fixedly arranged on the support plate, and the piezoelectric sheets/strain gauges of the multiple support deformation components are connected in series, The top plate is covered on the supporting deformation component; the piezoelectric sheet/strain gauge is subjected to external force to generate electricity.

The support deformable structure of the present disclosure can be applied to a piezoelectric power generation floor for pedestrians to step on to generate electricity. With the support deformable structure of the present disclosure, the power generation capacity can be increased and the power generation efficiency can be improved.

Although the specific implementation of the present disclosure has been described above in conjunction with the accompanying drawings, it does not limit the protection scope of the present disclosure. Those skilled in the art should understand that on the basis of the technical solutions of the present disclosure, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present disclosure.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the present application. For those skilled in the art, there may be various modifications and changes in the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this application shall be included within the protection scope of this application.

Claims (10)

1. A support deformation structure of a piezoelectric sheet/strain gauge, characterized in that it comprises a support deformation assembly, The support deformation assembly includes a base plate, and at least one support deformation member is provided on the base plate; The supporting deformation member includes two oppositely arranged clamping members, both clamping members can clamp the piezoelectric sheet/strain gauge, a lever member is arranged between the two clamping members, and the clamping end of the lever member is pressed on The top of the piezoelectric sheet/strain gauge clamped by one clamping member, and the support end of the lever member is supported on the bottom of the piezoelectric sheet/strain gauge clamped by the other clamping member. 2. The supporting deformation structure of the piezoelectric sheet/strain gauge according to claim 1, wherein the clamping member comprises at least one fixed clamping block and a movable clamping block, and the fixed clamping block is fixedly connected On the base plate, the movable clamping block is detachably connected with the base plate. 3. The supporting deformation structure of the piezoelectric sheet/strain gauge according to claim 2, characterized in that, the middle part of the fixed clamping block has a first groove arranged horizontally, and the first groove can be clamped Piezoelectric sheet/strain gauge; the middle part of the moving clamping block has a second groove arranged horizontally, and the piezoelectric sheet/strain gauge can be clamped in the second groove; the first groove is set on the fixed clamp Hold the block at the set height. 4 . The supporting deformation structure of the piezoelectric sheet/strain gauge according to claim 1 , wherein the middle part of the lever member is hingedly connected to the bottom plate. 5. The supporting deformation structure of the piezoelectric sheet/strain gauge as claimed in claim 1, wherein the lever member comprises a first rod, a fixed part, and a second rod connected in sequence, and the fixed part is hinged to the bottom plate , the first rod and the second rod both extend outward from the fixing part. 6. The support deformation structure of piezoelectric sheet/strain gauge as claimed in claim 5, characterized in that, the first rod, the fixing part, and the second rod are integrally formed; the length of the first rod is longer than that of the second rod length. 7. The supporting deformation structure of the piezoelectric sheet/strain gauge as claimed in claim 5, characterized in that, the bottom of the end of the first rod has a raised pressing block, and the raised pressing block can be pressed on the piezoelectric sheet/strain The top of the strain gauge; the smooth transition connection between the end of the first rod and the raised pressure block. 8. The supporting deformation structure of the piezoelectric sheet/strain gauge as claimed in claim 5, characterized in that, the top of the second rod end has a raised jacking block, and the raised jacking block can be supported on the piezoelectric sheet/strain gauge. The bottom of the strain gauge; the smooth transition connection between the end of the second rod and the raised top block. 9. The supporting deformation structure of piezoelectric sheet/strain gauge as claimed in claim 1, characterized in that, two lever members are provided for each of the supporting deformation members, and the two lever members are arranged symmetrically and crosswise; The pressing end of one of the lever members and the supporting end of the other lever member are oppositely arranged at the same clamping member. 10. A piezoelectric generator, characterized by comprising the supporting deformation structure according to any one of claims 1-9.