Damping device capable of converting vibrational energy into electrical energy

Abstract

The present invention relates to the technical field of damping devices, and specifically relates to a damping device capable of converting vibrational energy into electrical energy, the damping device comprising a generator and a transmission rod, wherein a stator and a rotor are arranged in the generator, a rotor shaft of the rotor internally has a rotor-shaft inner cavity arranged along the axis, and a spiral diagonal slideway is formed on the rotor-shaft inner cavity; one end of the transmission rod is provided with a driving head engaging with the spiral diagonal slideway, and the driving head is internally provided with a one-way rotating mechanism; and a vibration source alternately cooperates with a damping spring to drive the transmission rod to move in a reciprocating manner along the rotor-shaft inner cavity, so as to drive, by means of the driving head, the rotor to rotate in one direction for power generation. The present invention can make full use of vibrational energy, and achieve the effect of converting vibrational energy into electrical energy, thereby reducing dependence on fossil fuels, and reducing environmental pollution and greenhouse gas emissions. The present invention enables continuous high-power generation in the presence of a stable vibration source. The vibration source may be a variety of vibration generating apparatuses or structures, and such device thus has wide application prospects.

Description

A vibration damping device that converts vibration energy into electrical energy Technical Field

[0001] This invention relates to the field of vibration damping device technology, and more specifically to a vibration damping device that converts vibration energy into electrical energy. Background Technology

[0002] In modern engineering and mechanical design, vibration damping devices are used to reduce or absorb mechanical vibrations and shock waves, thereby protecting structures and equipment from damage. Traditional vibration damping technologies mainly include springs, shock absorbers, and dampers, which reduce the impact of vibrations on structures by absorbing and dissipating vibration energy. However, these technologies primarily focus on suppressing vibrations without converting vibration energy into other forms of energy, thus failing to fully utilize vibration energy.

[0003] Existing technologies such as CN110086375A disclose a vibration-type power generator, but it uses the vibration of piezoelectric ceramic sheets to generate charges, resulting in a small overall power generation capacity, low power generation efficiency, and high manufacturing cost, making it difficult to apply in practice. Technical solutions

[0004] The purpose of this invention is to overcome the above-mentioned problems and provide a vibration damping device that converts vibration energy into electrical energy. This device uses a unidirectional rotation mechanism to convert the vibration of a vibration source into unidirectional rotation of a generator rotor, thereby achieving the purpose of power generation. To achieve the above objective, this invention adopts the following technical solution:

[0005] A vibration damping device that converts vibration energy into electrical energy includes a generator, wherein the generator has a stator and a rotor, the rotor shaft of the rotor is designed as a hollow tube, and the rotor shaft cavity is provided inside the rotor shaft cavity arranged along the axis, and the rotor shaft cavity is provided with a helical grooved slide.

[0006] The generator is also equipped with a transmission rod, one end of which is inserted into the inner cavity of the rotor shaft and the other end is fixed to an external vibration source. The end of the transmission rod inserted into the inner cavity of the rotor shaft is equipped with a drive head that cooperates with the helical groove slide. The drive head is equipped with a one-way rotation mechanism.

[0007] A shock-absorbing spring is fitted on the outer side of the transmission rod. One end of the shock-absorbing spring is pressed against the generator, and the other end is fixed to the side of the transmission rod near the vibration source by a pin fastening device.

[0008] The vibration source vibrates and alternates with the damping spring, driving the transmission rod to reciprocate along the inner cavity of the rotor shaft, which in turn drives the rotor to rotate in one direction through the drive head.

[0009] As an improvement, the end of the transmission rod inserted into the inner cavity of the rotor shaft is provided with an extension, the drive head is provided on the extension and can rotate around the extension, and the drive head is provided with a slider that cooperates with the spiral groove slide.

[0010] As an improvement, the length of the extension is longer than the length of the drive head, so that the drive head can slide along the axial direction of the extension.

[0011] As an improvement, the unidirectional rotation mechanism includes a locking tooth located at the bottom of the drive head and a reverse locking tooth fixed on the transmission rod; the locking tooth and the reverse locking tooth are respectively provided with mutually cooperating inclined portions and a second inclined portion.

[0012] As an improvement, the number of the locking teeth and the reverse locking teeth is multiple.

[0013] As an improvement, the number of spiral grooved slides is multiple, and they are arranged in a circular array along the rotor shaft axis;

[0014] The number of sliders is equal to the number of spiral tracks.

[0015] As an improvement, the cross-section of the slider is either an inverted right-angled trapezoid or a rectangle with a chamfered top. Beneficial effects

[0016] The advantages of this invention are:

[0017] 1. This invention converts the vibration of a vibration source into unidirectional rotation of a generator rotor through a unidirectional rotation mechanism, thereby achieving the purpose of power generation. This invention can fully utilize vibration energy to achieve the effect of converting vibration energy into electrical energy, reducing dependence on fossil fuels and lowering environmental pollution and greenhouse gas emissions.

[0018] 2. In addition to vibration damping through damping springs, this invention also effectively dampens vibrations during the movement of the transmission rod within the rotor shaft cavity, which drives the generator rotor to rotate. Compared to traditional single vibration damping devices, it offers superior vibration damping performance.

[0019] 3. This invention can continuously generate high-power electricity in the presence of a stable vibration source. Furthermore, the vibration source can be various devices or structures that generate vibration, making this device widely applicable.

[0020] 4. This invention has good safety performance, low manufacturing cost, low maintenance cost, and simpler maintenance process. Attached Figure Description

[0021] Figure 1 is a structural diagram of a vibration damping device that converts vibration energy into electrical energy in Example 1.

[0022] Figure 2 is a structural diagram of the rotor shaft in a vibration damping device that converts vibration energy into electrical energy in Example 1.

[0023] Figure 3 is a diagram of the internal structure of the rotor shaft in a vibration damping device that converts vibration energy into electrical energy in Example 1.

[0024] Figure 4 is a schematic diagram of the cooperation between the rotor shaft and the transmission rod in a vibration damping device that converts vibration energy into electrical energy in Example 1.

[0025] Figure 5 is a structural diagram of the drive head and unidirectional rotation mechanism in a shock absorption device that converts vibration energy into electrical energy in Example 1.

[0026] The diagram is labeled as follows:

[0027] 1-Generator, 2-Rotor shaft, 21-Rotor shaft inner cavity, 22-Helical grooved slide, 3-Transmission rod, 31-Extension, 4-Vibration source, 5-Drive head, 51-Slider, 6-One-way rotation mechanism, 61-Clamping tooth, 62-Reverse clamping tooth, 63-Inclined part, 64-Second inclined part, 7-Shock-absorbing spring, 71-Pin fastening device. Embodiments of the present invention

[0028] The present invention will now be described in detail and specifically through specific embodiments to enable a better understanding of the invention. However, the following embodiments do not limit the scope of protection of the present invention. Example

[0029] This embodiment discloses a vibration damping device that converts vibration energy into electrical energy, including a generator 1. The generator 1 has a stator and a rotor. The rotor shaft 2 of the rotor adopts a hollow tubular design and has an inner cavity 21 arranged along the axis. The inner cavity 21 of the rotor shaft is provided with a spiral oblique groove 22.

[0030] The generator 1 is also equipped with a transmission rod 3. One end of the transmission rod 3 is inserted into the inner cavity 21 of the rotor shaft, and the other end is fixed to the external vibration source 4. The end of the transmission rod 3 inserted into the inner cavity 21 of the rotor shaft is equipped with a drive head 5 that cooperates with the spiral groove slide 22. The drive head 5 is equipped with a one-way rotation mechanism 6.

[0031] The vibration source 4 vibrates, driving the transmission rod 3 to reciprocate along the inner cavity 21 of the rotor shaft, which in turn drives the rotor to rotate in one direction through the drive head 5, thereby achieving the purpose of generating electricity.

[0032] The end of the transmission rod 3 inserted into the inner cavity 21 of the rotor shaft is provided with an extension 31. The drive head 5 is provided on the extension 31 and can rotate around the extension 31. The drive head 5 is provided with a slider 51 that cooperates with the spiral groove slide 22.

[0033] The length of the extension 31 is longer than the length of the drive head 5, so that the drive head 5 can slide along the axial direction of the extension 31.

[0034] The unidirectional rotation mechanism 6 includes a locking tooth 61 located at the bottom of the drive head 5 and a reverse locking tooth 62 fixed on the transmission rod 3; the locking tooth 61 and the reverse locking tooth 62 are respectively provided with mutually cooperating inclined portions 63 and second inclined portions 64.

[0035] Because the drive head 5 can slide along the axial direction of the extension 31, an assembly gap exists between the locking teeth 61 and 62. As shown in Figure 5, when the vibration source 4 drives the transmission rod 3 to move to the right, the drive head 5, guided by the inclined portion 63 and the second inclined portion 64, is locked in place by the locking teeth 61 and the reverse locking teeth 62. This pushes the drive head 5 to move to the right along the spiral grooved slide 22, generating rotational torque and thus driving the rotor to rotate. When the vibration source 4 drives the transmission rod 3 to move to the left, the locking teeth 61 disengage from the reverse locking teeth 62, releasing the rotational lock on the drive head 5, thereby achieving the purpose of driving the rotor to rotate in only one direction.

[0036] In this embodiment, there are two locking teeth 61 and two reverse locking teeth 62. There are three spiral grooved slides 22, arranged circumferentially along the rotor shaft 2. The number of sliders 51 is equal to the number of spiral slides 22.

[0037] The cross-section of slider 51 is an inverted right trapezoid.

[0038] In this embodiment, a damping spring 7 is sleeved on the outer side of the transmission rod 3. One end of the damping spring 7 is pressed onto the generator, and the other end is fixed to the side of the transmission rod 3 near the vibration source 4 by a pin fastening device 71. The damping spring 7 can play the role of damping and rebounding. As shown in Figure 1, when the transmission rod 3 moves to the left, the damping spring 7 is compressed, which plays the role of damping and buffering. When the leftward vibration force disappears, the compressed damping spring 7 rebounds, pushing the transmission rod 3 to the right. The reverse locking tooth 62 on the transmission rod 3 separates from the locking tooth 61, achieving the purpose of unlocking. After unlocking, the drive head 5, driven by the spiral groove slide 22 in the inner cavity 21 of the rotor shaft, follows the rotor shaft 2 to rotate. At the same time, driven by the extension part 31, it moves to the left to prepare for driving the rotor shaft 2 to rotate again. This is repeated to achieve the purpose of continuously driving the rotor shaft 2 to rotate in one direction.

[0039] The specific embodiments of the present invention have been described in detail above, but they are merely examples, and the present invention is not equivalent to the specific embodiments described above. For those skilled in the art, any equivalent modifications and substitutions to the present invention are also within the scope of the present invention. Therefore, all equivalent transformations and modifications made without departing from the spirit and scope of the present invention should be covered within the scope of the present invention.

Claims

1. A shock absorbing device that converts vibrational energy into electrical energy, characterized by, The utility model relates to a power generator, which comprises a generator and a transmission rod, the generator is internally provided with a stator and a rotor, the rotor shaft of the rotor adopts a hollow tubular design, and an inner cavity of the rotor shaft is arranged along an axis, a spiral slanted slide is arranged on the inner cavity of the rotor shaft, and the transmission rod is inserted into the inner cavity of the rotor shaft at one end and fixed to an external vibration source at the other end. The transmission rod is externally provided with a damping spring, one end of the damping spring is pressed on the generator, and the other end is fixed to the side of the transmission rod close to the vibration source through a bolt fastening device. The vibration source vibrates and alternately cooperates with the damping spring, drives the transmission rod to reciprocate along the inner cavity of the rotor shaft, and then drives the rotor to rotate in one direction through the driving head. The end of the transmission rod inserted into the inner cavity of the rotor shaft is provided with an extension part, the driving head is arranged on the extension part and can rotate around the extension part, and the driving head is provided with a sliding block matched with the spiral slanted slide.

2. A shock absorbing device that converts vibrational energy into electrical energy according to claim 1, wherein, The length of the extension part is longer than the length of the driving head, so that the driving head can slide along the axial direction of the extension part.

3. A vibration energy harvesting device according to claim 2, wherein, The one-way rotation mechanism comprises a clamping tooth arranged at the bottom of the driving head and a reverse clamping tooth fixed to the transmission rod, and the clamping tooth and the reverse clamping tooth are respectively provided with an inclined part and a second inclined part matched with each other.

4. A shock absorbing device that converts vibrational energy into electrical energy according to claim 2, wherein The number of the clamping tooth and the reverse clamping tooth is multiple.

5. A vibration energy harvesting device according to claim 4, wherein, The number of the spiral slanted slides is multiple, and the spiral slanted slides are arranged in a circular array along the axis of the rotor shaft.

6. A shock absorbing device that converts vibrational energy into electrical energy as recited in claim 2, wherein, The number of the sliding blocks is equal to the number of the spiral slides. The cross section of the sliding block is inverted right-angle trapezoidal.

7. A shock absorbing device that converts vibrational energy into electrical energy as recited in claim 2, wherein ​

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