Linear electromagnetic type dynamic vibration absorption generator

Abstract

The utility model discloses a linear electromagnetic type dynamic vibration absorption generator, which relates to the technical field of vibration absorption generators and comprises a main vibration connecting piece, an elastic supporting element and a vibration absorption power generation assembly. A stator of the vibration absorption power generation assembly is connected to the main vibration connecting piece, and a rotor of the vibration absorption power generation assembly is connected with the main vibration connecting piece through an elastic supporting element. The main vibration connecting piece is used for being connected with a vibration source, and the vibration absorption power generation assembly is used for power generation. In the utility model, the vibration source is connected with the main vibration connecting piece, the main vibration connecting piece and the vibration source do not move relatively, when the vibration source vibrates, the frequency resonance of the vibration source and the vibration absorption system is realized through the matching of the rigidity and damping of the generator and the vibration source, and the elastic supporting element drives the generator rotor to move along the shaft of the generator stator, so that the vibration source vibrates. At the moment, the generator rotor moves relative to the generator stator and performs magnetic induction line cutting motion, namely vibration of the vibration source is absorbed and converted into mechanical energy of the generator rotor, and then the mechanical energy is converted into electric energy.

Description

Technical Field

[0001] The utility model relates to the technical field of vibration absorption generators, in particular to a linear electromagnetic power vibration absorption generator. Background Art

[0002] Vibration is a ubiquitous phenomenon in nature, from the movement of the earth's crust to the vibration of mechanical systems. However, for a long time, most of this vibration energy has been wasted and not effectively utilized. As human beings pay more attention to energy efficiency and sustainability, the technology of absorbing and utilizing vibration energy has gradually become the focus of research and application. The concept of absorbing vibration energy involves capturing and transforming the energy generated during the vibration process and converting it into a usable form, such as electrical energy or mechanical energy. The potential of this technology lies not only in injecting wasted energy back into the system, but also in achieving more efficient energy utilization in many fields. By making full use of vibration energy, we can not only achieve more efficient energy utilization, but also reduce dependence on traditional energy resources, thereby promoting the goal of sustainable development. In this era full of challenges and opportunities, the technology of absorbing vibration energy will play an increasingly important role in creating a more sustainable and prosperous future for us.

[0003] In the era of pursuing sustainable development and energy conservation and emission reduction, people are increasingly studying the innovative use of energy existing in the environment. Dynamic vibration absorption energy absorption technology refers to the use of vibration energy in structures or environments and converting it into usable electrical energy or mechanical energy through electric energy conversion devices, bringing new possibilities to various application fields. The uniqueness of dynamic vibration absorption energy absorption technology lies in its high efficiency and flexibility. Whether it is small vibrations from building structures or larger vibrations caused by mechanical systems or environmental conditions, this technology can effectively capture and utilize energy. Compared with traditional energy collection methods, dynamic vibration absorption energy absorption technology is more environmentally friendly because it does not involve the consumption of natural resources or the emission of harmful substances. With the continuous advancement of science and technology, dynamic vibration absorption energy absorption technology is also constantly developing and improving. From smart buildings to wearable devices, from industrial manufacturing to intelligent transportation systems, this technology is bringing revolutionary changes to various fields. In the future, as the demand for clean energy and energy efficiency continues to grow, dynamic vibration absorption energy absorption technology is expected to become an important solution and bring positive impacts to our society and environment. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a linear electromagnetic dynamic vibration absorbing generator, which converts it into usable electrical energy to meet the energy needs of various application scenarios. Its purpose is to improve energy utilization efficiency, reduce energy costs, and promote sustainable development.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a linear electromagnetic power vibration absorption generator, comprising a main vibration connecting piece, an elastic supporting element and a vibration absorption power generation assembly; the stator of the vibration absorption power generation assembly is rigidly connected to the main vibration connecting piece, and the mover of the vibration absorption power generation assembly and the main vibration connecting piece are connected through the elastic supporting element; the main vibration connecting piece is used for rigid connection with a vibration source, and the vibration absorption power generation assembly is used for generating electricity.

[0007] Optionally, the main vibration connecting member includes a connecting plate, on which a first connecting portion is provided, and the first connecting portion is used to connect to the vibration source.

[0008] Optionally, the first connecting portion includes a vibration source mounting hole.

[0009] Optionally, a vibration source mounting lug is respectively provided at both ends of the connecting plate.

[0010] Optionally, the vibration absorption power generation assembly includes a generator stator, a generator mover and a coil; the generator stator is connected to the main vibration connecting piece, the generator mover is slidingly arranged between the generator stator, and the coil is arranged on the outside of the engine mover; the elastic support element is arranged between the engine mover and the main vibration connecting piece.

[0011] Optionally, the generator stator is a rod-shaped structure, and the end of the generator stator is connected to the middle part of the main vibration connecting member.

[0012] Optionally, the generator mover includes a bobbin and a connecting frame, the bobbin is slidably mounted on the generator stator, the upper and lower ends of the connecting frame are respectively connected to the upper and lower ends of the bobbin, the coil is arranged on the outer wall of the bobbin, one end of the elastic support element is connected to the main vibration connecting piece, and the other end of the elastic support element is connected to the connecting frame.

[0013] Optionally, a lifting lug is provided at the middle portion of the outer side of the connecting frame, and the lifting lug is used to be connected to the other end of the elastic supporting element.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] The utility model discloses a linear electromagnetic dynamic vibration absorbing generator, in which a vibration source is connected to a main vibration connecting piece through an installation ear or a installation hole, and the main vibration connecting piece and the vibration source have no relative movement. When the vibration source vibrates, the frequency resonance of the vibration source and the vibration absorbing system is realized through the matching of the stiffness and damping of the generator and the vibration source, and the generator mover is driven by the elastic supporting element to perform linear movement along the axis of the generator stator. At this time, the generator mover moves relative to the generator stator to perform a movement cutting the magnetic flux lines, that is, the vibration of the vibration source is absorbed and converted into the mechanical energy of the generator mover, and then converted into electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of a double-layer vibration system model of the linear electromagnetic dynamic vibration absorbing generator of the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the linear electromagnetic power vibration absorbing generator of the utility model;

[0019] Figure 3 It is the voltage diagram of the linear electromagnetic power vibration absorbing generator of the utility model;

[0020] Description of reference numerals:

[0021] 1. Vibration source mounting lug; 2. Elastic support element; 3. Generator stator; 4. Coil; 5. Lifting lug; 6. Generator mover; 7. Vibration source mounting hole;

[0022] m1 is the mass unit parameter of the vibration source; m2 is the mass unit parameter of the vibration absorption system; k1 is the equivalent stiffness of the vibration source; k2 is the equivalent stiffness of the vibration absorption system; c1 is the damping coefficient of the vibration source; c2 is the damping coefficient of the vibration absorption system; y1 represents the vibration response of the vibration source; y2 represents the vibration response of the vibration absorption system. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figures 1 to 3 As shown, this embodiment provides a linear electromagnetic dynamic vibration absorption generator, including a main vibration connecting part, an elastic support element 2 and a vibration absorption power generation assembly; the stator of the vibration absorption power generation assembly is rigidly connected to the main vibration connecting part, and the mover of the vibration absorption power generation assembly and the main vibration connecting part are connected through the elastic support element 2; the main vibration connecting part is used to connect to the vibration source, and the vibration absorption power generation assembly is used to generate electricity.

[0025] In this specific embodiment, the main vibration connecting member includes a connecting plate, on which a vibration source mounting lug 1 is provided, and the vibration source mounting lug 1 is used to connect to the vibration source.

[0026] The vibration absorption power generation assembly includes a generator stator 3, a generator mover 6 and a coil 4; the generator stator 3 is rigidly connected to the main vibration connecting piece, the generator mover 6 is slidingly arranged between the generator stator 3, and the coil 4 is arranged on the outside of the engine mover; an elastic support element 2 is arranged between the engine mover and the main vibration connecting piece.

[0027] The generator stator 3 is a rod-shaped structure, and the end of the generator stator 3 is connected to the middle of the main vibration connector. The generator mover 6 includes a bobbin and a connecting frame. The bobbin is slidably mounted on the generator stator 3. The upper and lower ends of the connecting frame are respectively connected to the upper and lower ends of the bobbin. The coil 4 is arranged on the outer wall of the bobbin. One end of the elastic support element 2 is connected to the main vibration connector, and the other end of the elastic support element 2 is connected to the connecting frame. A lifting lug 5 is arranged in the middle of the outer side of the connecting frame, and the lifting lug 5 is used to connect to the other end of the elastic support element 2.

[0028] The elastic supporting element 2 may specifically be a coil spring.

[0029] In order to control the vibration speed and amplitude of the vibration absorption system, based on the optimal coherence and optimal damping conditions, a wide-band resonance between the vibration system and the vibration absorption system is achieved. The vibration frequency of the vibration absorption system and the vibration frequency of the main vibration system satisfy the following relationship:

[0030]

[0031] From the damping parameters of the vibration system, the following relationship is satisfied:

[0032]

[0033] Introduce symbols, Indicates the natural frequency of the vibration source; Indicates the natural frequency of the vibration absorption system; μ = m2 / m1 indicates the ratio of the mass of the vibration absorption system to the mass of the vibration source;

[0034] Among them, m1 is the mass unit parameter of the vibration source; m2 is the mass unit parameter of the vibration absorption system; k1 is the equivalent stiffness of the vibration source; k2 is the equivalent stiffness of the vibration absorption system;

[0035] According to the above formula, in order for the dynamic vibration absorption generator to obtain the maximum converted electrical energy, it should be ensured that the natural frequencies of the vibration absorption system and the vibration system are close, that is, α is approximately equal to 1; at this time, the mass ratio between the vibration system and the vibration absorption system should be as small as possible. When the masses of the vibration system and the vibration absorption system are certain and the condition that α is approximately equal to 1 is satisfied, the vibration response characteristics of the dynamic vibration absorption generator will be affected by the spring stiffness k2 and damping c2 of the vibration absorption system.

[0036] Self-programming analysis of k2 and c2 shows that: as k2 increases, the vibration magnitude of the vibration absorption system shows a trend of first increasing and then decreasing; under the same stiffness, as c2 increases, the vibration magnitude of the vibration absorption system shows a downward trend.

[0037] The damping parameters of the vibration absorption system are determined by the free vibration attenuation curve, which can be expressed as:

[0038]

[0039] Where: A0 is the initial displacement; ζ is the corresponding damping ratio; ω is the natural frequency; w′ is the corrected frequency; is the initial phase angle.

[0040] Since this patent mainly focuses on the amplitude attenuation of the vibration absorption system rather than the phase change, the sine function part in the above formula is ignored, and the simplified formula of the free attenuation curve is obtained as follows:

[0041] y(t)=A0e -ζωt

[0042] The damping parameter ζ can be obtained by self-programming fitting the measured free decay curve using the simplified free decay formula.

[0043] Assuming that the excitation from the vibration source is approximately a sine curve, the voltage curves obtained at different speeds of the vibration absorption system are as follows: Figure 3 shown.

[0044] The linear electromagnetic dynamic vibration absorbing generator in this embodiment has the following application scenarios:

[0045] (1) Building structure: The device can be integrated into the building structure to generate electricity using the vibration energy of stairs, elevators or building structures. This device can provide self-sufficient clean energy for the building and reduce dependence on traditional power grids.

[0046] (2) Transportation: The device can be embedded in vehicles such as cars, trains, and subways to generate electricity using the vibration energy generated by the vehicle. Such a device can provide additional power support for transportation, improve energy efficiency, and reduce dependence on traditional fuel.

[0047] (3) Intelligent building system: The device can be used in intelligent building systems, such as intelligent lighting systems, intelligent security systems, etc. Using the vibration energy of the building structure to generate electricity can provide reliable clean energy for the intelligent system and improve the energy efficiency of the intelligent building.

[0048] (4) Wearable devices: The device can be integrated into wearable devices such as watches, fitness trackers, etc. By utilizing the vibration energy generated by human movement to generate electricity, it can provide continuous power support for wearable devices and extend the battery life.

[0049] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0050] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A linear electromagnetic dynamic vibration absorbing generator, characterized in that: It includes a main vibration connecting part, an elastic supporting element and a vibration absorption power generation component; the stator of the vibration absorption power generation component is rigidly connected to the main vibration connecting part, and the mover of the vibration absorption power generation component and the main vibration connecting part are connected through the elastic supporting element; the main vibration connecting part is used to be connected to a vibration source, and the vibration absorption power generation component is used to generate electricity.

2. The linear electromagnetic dynamic vibration absorbing generator according to claim 1, characterized in that: The main vibration connecting member comprises a connecting plate, on which a first connecting portion is arranged, and the first connecting portion is used to be connected to the vibration source.

3. The linear electromagnetic dynamic vibration absorbing generator according to claim 2, characterized in that: The first connection portion includes a vibration source mounting hole.

4. The linear electromagnetic dynamic vibration absorbing generator according to claim 2, characterized in that: A vibration source mounting lug is respectively arranged at both ends of the connecting plate.

5. The linear electromagnetic dynamic vibration absorbing generator according to claim 1, characterized in that: The vibration absorption power generation assembly includes a generator stator, a generator mover and a coil; the generator stator is rigidly connected to the main vibration connecting piece, the generator mover is slidingly arranged between the generator stator, and the coil is arranged on the outside of the generator mover; the elastic support element is arranged between the generator mover and the main vibration connecting piece.

6. The linear electromagnetic dynamic vibration absorbing generator according to claim 5, characterized in that: The generator stator is a rod-shaped structure, and the end of the generator stator is connected to the middle part of the main vibration connecting member.

7. The linear electromagnetic dynamic vibration absorbing generator according to claim 5, characterized in that: The generator mover includes a bobbin and a connecting frame, the bobbin is slidably mounted on the generator stator, the upper and lower ends of the connecting frame are respectively connected to the upper and lower ends of the bobbin, the coil is arranged on the outer wall of the bobbin, one end of the elastic support element is connected to the main vibration connecting piece, and the other end of the elastic support element is connected to the connecting frame.

8. The linear electromagnetic dynamic vibration absorbing generator according to claim 7, characterized in that: A lifting lug is provided at the middle portion of the outer side of the connecting frame, and the lifting lug is used to be connected to the other end of the elastic supporting element.

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