Self-powered variable-frequency and variable-speed motor based on vibration energy recovery

Abstract

The invention relates to the technical field of motor self-energy supply, and discloses a self-energy-supply variable-frequency and variable-speed motor based on vibration energy recovery, which comprises a variable-frequency motor, a variable-frequency box is mounted at the top end of the variable-frequency motor, an energy storage assembly is mounted in the variable-frequency box, and the energy storage assembly comprises a cylinder fixedly connected in the variable-frequency box. A sliding column is slidably connected into the column body, an energy storage spring is fixedly connected between the end of the sliding column and the column body, a plurality of second fixing pieces are fixedly connected to the outer wall of the sliding column, first fixing pieces corresponding to the second fixing pieces are arranged at the upper end and the lower end of the inner wall of the frequency conversion box, and transmission rods are hinged between the first fixing pieces and the second fixing pieces. According to the energy recovery device, physical buffering and stable-pressure output of vibration energy are achieved, the energy recovery efficiency is improved, and meanwhile the heat dissipation problem during low-speed operation of the variable frequency motor is solved.

Description

Technical Field

[0001] This invention relates to the field of self-powered motor technology, specifically to a self-powered variable frequency speed control motor based on vibration energy recovery. Background Technology

[0002] With the development of industrial automation, variable frequency speed control motors are increasingly widely used in various mechanical equipment. However, variable frequency motors inevitably generate multi-frequency, irregular mechanical vibrations during operation. This vibration energy is usually dissipated in the form of heat or noise, resulting in energy waste.

[0003] While some devices utilizing piezoelectric elements or electromagnetic induction principles have emerged in the existing technology to recover motor vibration energy, the following problems still exist in practical applications: First, the vibration frequency and amplitude of variable frequency motors fluctuate drastically at different speeds, resulting in highly unstable recovered electrical energy that is difficult to directly drive precision electronic components or frequency converters; second, existing mechanical energy recovery devices lack effective overload protection mechanisms, and when the motor vibrates violently or the spring is wound too tightly, internal precision transmission components are prone to fatigue fracture or gear slippage damage; furthermore, when the variable frequency motor operates at low speed and high torque, the cooling efficiency of its built-in coaxial fan decreases significantly, leading to excessively rapid motor temperature rise, and existing energy recovery systems have failed to effectively solve this heat dissipation bottleneck. Therefore, developing a self-powered variable frequency motor that can achieve stable energy output, possess mechanical protection functions, and assist in forced cooling has become an urgent technical problem to be solved in this field. Summary of the Invention

[0004] This invention provides a self-powered variable frequency speed control motor based on vibration energy recovery, which has the advantages of physical buffering of vibration energy and stable voltage output. While improving energy recovery efficiency, it also provides active heat dissipation for the variable frequency motor when running at low speed, thus solving the problems mentioned in the background art.

[0005] This invention provides the following technical solution: a self-powered variable frequency speed control motor based on vibration energy recovery, comprising a variable frequency motor, a variable frequency box mounted on the top of the variable frequency motor, an energy storage component installed inside the variable frequency box, the energy storage component comprising a column fixedly connected inside the variable frequency box, a sliding column slidably connected inside the column, an energy storage spring fixedly connected between the end of the sliding column and the column, a plurality of second fixing members fixedly connected to the outer wall of the sliding column, and first fixing members provided at both the upper and lower ends of the inner wall of the variable frequency box corresponding to the second fixing members, the first fixing members and the second fixing members being connected to the second fixing members. All fixed components are hinged with transmission rods; the end of the column is provided with a swing assembly, which includes a rack fixedly connected to the end of the column. Input gears mesh on both sides of the rack, and two output gear rings are provided on the outer side of each input gear. Each input gear meshes with one of the output gear rings. Pawls are hinged to the inner rings of each output gear ring, and return springs are fixedly connected between the pawls and the output gear rings. A ratchet is provided inside each output gear ring, and the ratchet engages with the pawls. An output gear is located below the ratchet, and the ratchet and output gear are fixedly connected. A rotating rod is fixedly connected to each of the two output gears; both output gears are fitted with a winding assembly, the winding assembly including a large winding gear meshing with the output gears, a small winding gear located below the large winding gear, and a rotating shaft fixedly connected between the large winding gear and the small winding gear; both small winding gears are fitted with a mainspring assembly, the mainspring assembly including a mainspring gear meshing with the small winding gear, a mainspring shaft fixedly connected to the bottom end of the mainspring gear, the mainspring shaft passing through and rotatably connected to the mainspring barrel, and a mainspring installed inside the mainspring barrel. One end of the mainspring is fixedly connected to the mainspring shaft, and the other end of the mainspring is fixedly connected to the auxiliary mainspring. Several L-shaped scrapers are fixedly connected inside the mainspring barrel. The outer wall of the auxiliary mainspring is in contact with the scrapers. An external gear ring is fixedly connected to the outer wall of the mainspring barrel. Both of the external gear rings are fitted with a generator assembly. The generator assembly includes two generators installed in a frequency converter box. A second rotating rod is fixedly connected to the output end of the generator. A second gear is fixedly connected to the outer wall of the second rotating rod. The second gear meshes with a first gear. The first gear meshes with the external gear ring.

[0006] In a preferred embodiment, the outer wall of the column has a through groove corresponding to the second fixing member, and sliders are fixedly connected to both sides of the outer wall of the sliding column. The inner wall of the column has a sliding groove corresponding to the slider, and the slider is located in the sliding groove and slidably connected thereto.

[0007] In a preferred embodiment, a storage battery is installed inside the inverter box, and the storage battery is electrically connected to the generator.

[0008] In a preferred embodiment, a first rotating rod is fixedly connected to the bottom end of the first gear, and the bottom end of the first rotating rod is rotatably connected to the bottom wall inside the frequency converter box. The radius of the first gear is larger than the radius of the second gear.

[0009] In a preferred embodiment, the inverter box has a heat dissipation port and a heat exhaust port at its upper and lower ends, respectively. The two second rotating rods extend into the heat dissipation port and the heat exhaust port, respectively, and several fan blades are fixedly connected to the outer wall of each of the second rotating rods. The heat exhaust port is connected to the inside of the inverter motor.

[0010] In a preferred embodiment, a support block is fixedly connected to both the heat dissipation port and the heat exhaust port, and the second rotating rod is rotatably connected to the support block.

[0011] In a preferred embodiment, a light rod is fixedly connected to the bottom end of the input gear, and a support frame is rotatably connected to the bottom ends of both the light rod and the rotating rod. The rotating shaft passes through the support frame and is rotatably connected to it.

[0012] In a preferred embodiment, the upper and lower ends of the output gear ring are fixedly connected to a fixing frame, and the optical rod passes through the fixing frame and is rotatably connected to it.

[0013] In a preferred embodiment, the outer wall of the frequency converter box is provided with an adjustment assembly, the adjustment assembly including a limiting post fixedly connected to the outer wall of the frequency converter box, a threaded rod internally connected to the limiting post, one end of the threaded rod being located outside the frequency converter box and fixedly connected to a knob, and the other end of the threaded rod passing through the end of the post and fixedly connected to a limiting block, the limiting block being in contact with the end of the sliding post.

[0014] In a preferred embodiment, the bottom end of the spring shaft is rotatably connected to the bottom wall of the inverter box.

[0015] The present invention has the following beneficial effects: 1. The present invention, through the symmetrical linkage structure composed of the first fixing member, the second fixing member and the transmission rod, can amplify the small vibration of the motor housing into the axial displacement of the sliding column. Then, through the cooperation of the rack and pinion and the ratchet and pawl mechanism, the mechanical rectification of reciprocating vibration into unidirectional rotational power is realized, which significantly improves the stability of energy recovery.

[0016] 2. By setting up a main and auxiliary spring series structure and cooperating with the L-shaped scraper on the inner wall of the spring box, the present invention utilizes the alternating engagement and slippage mechanism of the auxiliary spring between the scrapers to achieve mechanical constant torque output and overload energy discharge, effectively protecting the internal transmission mechanism and ensuring the stability of the generator output voltage.

[0017] 3. This invention utilizes the recovered vibration energy to directly drive the fan blades to rotate, converting kinetic energy into heat dissipation and exhaust energy. This effectively solves the problem of insufficient airflow from the built-in fan in the low-speed operation of the variable frequency motor, thus extending the service life of the variable frequency motor. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the inverter box of the present invention; Figure 3 This is a schematic diagram of the energy storage component of the present invention; Figure 4 This is an exploded view of the sliding column, column body, and threaded rod of the present invention; Figure 5 This is a schematic diagram showing the connection between the rack and the input gear of the present invention; Figure 6 This is a schematic diagram of the output toothed ring of the present invention; Figure 7 This is a schematic diagram showing the connection between the output gear and the upper chord gear of the present invention; Figure 8 This is a schematic diagram of the structure of the spring assembly of the present invention; Figure 9 This is a schematic diagram of the support frame of the present invention; Figure 10 This is a cross-sectional view of the spring box of the present invention; Figure 11 This is a split view of the mainspring and mainspring barrel of the present invention; Figure 12 This is a schematic diagram of the power generation component of the present invention.

[0019] In the diagram: 1. Variable frequency motor; 2. Variable frequency box; 21. Battery; 3. Heat sink; 4. Column; 41. Sliding column; 42. Transmission rod; 43. First fixing component; 44. Through slot; 45. Second fixing component; 46. Energy storage spring; 47. Sliding block; 48. Sliding groove; 5. Limiting post; 51. Threaded rod; 52. Knob; 53. Limiting block; 6. Rack; 61. Input gear; 62. Output gear ring; 63. Fixing bracket; 64. Rotating rod; 65. Ratchet; 66. Return spring 67. Spring; 68. Pawl; 69. Output gear; 7. Spur bar; 80. Support frame; 91. Large upper winding gear; 82. Small upper winding gear; 93. Shaft; 94. Mainspring; 95. External gear ring; 96. Mainspring shaft; 10. Generator; 101. First gear; 102. First rotating rod; 103. Fan blade; 104. Support block; 105. Second gear; 106. Second rotating rod; 11. Heat exhaust port. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The self-powered variable frequency speed control motor based on vibration energy recovery involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example 1:

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, a self-powered variable frequency speed control motor based on vibration energy recovery has a main structure including a variable frequency motor 1 and a variable frequency box 2 fixedly installed on the top of its housing by high-strength bolts. The variable frequency box 2 integrates a mechanical linkage mechanism, a bidirectional rectification mechanism, a spring-loaded voltage stabilization and energy storage mechanism, and a power generation and heat dissipation mechanism. It aims to capture the multi-frequency random vibrations generated by the variable frequency motor 1 at different speeds and convert them into stable electrical energy and auxiliary heat dissipation wind energy.

[0022] In this embodiment, it should be noted that an energy storage component for capturing minute vibrations is installed inside the frequency converter box 2, such as... Figure 3 and Figure 4 As shown, the energy storage assembly includes a column 4 fixedly connected to the bottom surface of the inverter box 2 via a bottom flange. The column 4 has a hollow tubular structure, and a sliding column 41 is axially slidably connected inside it. Two longitudinal through slots 44 are symmetrically opened on the outer wall of the column 4. Several second fixing members 45 passing through the through slots 44 and extending to the outside are welded to the outer wall of the sliding column 41. First fixing members 43 are fixed to the top and bottom of the inner wall of the inverter box 2 at positions corresponding to the second fixing members 45 via supports. A transmission rod 42 is hinged between the first fixing member 43 and the second fixing member 45 via a pin, thereby allowing the sliding column 41 to move freely. Two sets of rhomboid symmetrical linkage structures are formed on the upper and lower sides. This structure uses the principle of geometric amplification to amplify the small radial runout of the variable frequency motor 1 housing into a large displacement reciprocating motion of the slide column 41 along the axis of the column 4. An energy storage spring 46 is fixedly connected between the bottom end of the slide column 41 and the inner wall of the bottom of the column 4 to provide reset elasticity and kinetic energy buffer. In order to eliminate sliding gap and prevent the slide column 41 from rotating, sliders 47 are integrally formed on the left and right sides of the outer wall of the slide column 41. The inner wall of the column 4 is provided with a longitudinal groove 48 corresponding to the slider 47. The slider 47 is embedded in the groove 48 to form a precise guiding fit.

[0023] In this embodiment, it should be noted that, as Figure 5 , Figure 6 and Figure 7As shown, the top of the column 4 is provided with a swing assembly for mechanical rectification of motion. The swing assembly includes a rack 6 fixedly connected to the top of the sliding column 41 by screws. Two input gears 61 are symmetrically meshed on both sides of the rack 6. A guide rod 69 is fixedly connected to the central axis of each input gear 61. Two sets of output gear rings 62 are sleeved on the outer circumference of the guide rod 69. One set of output gear rings 62 directly meshes with the teeth of the input gears 61, and the other set of output gear rings 62 achieves reverse synchronization through an intermediate gear. The inner ring of the output gear rings 62 is hinged with multiple circular rings by pins. A circumferentially distributed pawl 67 is connected to an output gear ring 62 by a return spring 66. The output gear ring 62 contains a ratchet 65. The tip of the pawl 67 engages with the ratchet teeth of the ratchet 65 to form a mechanical "full-bridge rectifier" circuit. An output gear 68 is coaxially fixed to the lower side of the ratchet 65. The ratchet 65 and the output gear 68 are both fixed on a rotating rod 64. Both the upper and lower ends of the output gear ring 62 are fixed with a fixing bracket 63. The guide rod 69 passes through the fixing bracket 63 and is rotatably connected to it to ensure the axial stability of the gear transmission under severe vibration.

[0024] In this embodiment, it should be noted that, as Figure 7 , Figure 8 and Figure 9 As shown, both output gears 68 are fitted with upper chord assemblies, which include a large upper chord gear 8 that meshes with the output gears 68. A small upper chord gear 81 is coaxially arranged below the large upper chord gear 8, and the two are fixed by a rotating shaft 82. The bottom ends of the rotating shaft 82, the guide rod 69, and the rotating rod 64 are all rotatably connected to the support frame 7 via deep groove ball bearings. The support frame 7 has a multi-layer frame structure, ensuring the parallelism of the axes of each stage of the transmission chain.

[0025] In this embodiment, it should be noted that, as Figure 10 , Figure 11 and Figure 12 As shown, both of the upper winding pinions 81 are fitted with a spring assembly for physical energy storage and mechanical voltage stabilization. The spring assembly includes a spring gear 92 that meshes with the upper winding pinion 81, and a spring shaft 93 is fixed axially at its center. The spring shaft 93 passes through the spring box 9 and is rotatably connected to it. A main spring 94 made of high-strength carbon spring steel is wound inside the spring box 9. The inner end of the main spring 94 is fastened to the spring shaft 93 by a hook, and the outer end is fixedly connected to a thinner auxiliary spring 96 with a lower elastic modulus by riveting. Multiple L-shaped scrapers 95 are welded to the inner circumferential wall of the spring box 9. The auxiliary spring 96 adheres tightly to the scrapers 95 by its own elasticity to form friction transmission. An external toothed ring 91 is integrally machined on the outer wall of the spring box 9.

[0026] In this embodiment, it should be noted that the power generation and heat dissipation component is as follows: Figure 12 As shown, the system includes an (AC / DC) generator 10 installed inside the inverter box 2. The rotor output shaft of the generator 10 is fixed with a second rotating rod 106. A second gear 105 is fixed on the second rotating rod 106. The second gear 105 meshes with a first gear 101, and the first gear 101 meshes with the outer gear ring 91 of the spring box 9, forming a high-speed transmission chain with a large transmission ratio. The inverter box 2 has heat dissipation vents 3 and heat exhaust vents 11 at its upper and lower ends, respectively. Each vent has a support block 104. The end of the second rotating rod 106 extends into the heat dissipation vents 3 and heat exhaust vents 11 and is fixed with a fan blade 103. The current output by the generator 10 is stored in the battery 21 after passing through a rectifier and filter circuit, which powers the microprocessor or communication module of the variable frequency speed control motor. Example 2:

[0027] Based on Example 1, in order to adapt to different motor models and vibration frequencies under different operating conditions, this example adds a stroke and preload adjustment mechanism, such as... Figure 4 As shown, a limiting post 5 is fixedly welded to the outer wall of the frequency converter box 2. The post has fine internal threads. A threaded rod 51 is connected to the limiting post 5 through a threaded pair. A knob 52 for easy manual operation is fixed to the outer end of the threaded rod 51. The inner end passes through the column 4 and is fixedly connected to a disc-shaped limiting block 53. The end face of the limiting block 53 abuts against the end face of the sliding column 41. By rotating the knob 52, the axial depth of the limiting block 53 in the column 4 can be precisely changed, thereby pre-compressing the energy storage spring 46 to adjust the natural frequency of the system, so that it and the main vibration frequency of the frequency converter motor 1 tend to the maximum amplitude point of the forced vibration, thereby maximizing the recovery of vibration energy.

[0028] Working principle: Phase 1 When the variable frequency motor 1 starts, adjusts its speed, or bears a changing load, factors such as rotor imbalance magnetic pull, bearing clearance, and electromagnetic torque pulsation will cause multi-dimensional mechanical vibrations. These vibrations are directly transmitted to the housing of the variable frequency box 2 through a rigid mounting structure, as shown in the attached diagram. Figure 2 , 3 As shown, the fixed column 4, sliding column 41 and hinged transmission rod 42 inside the frequency converter box 2 constitute a precision lever amplification vibration capture mechanism. The small vibration of the housing of the frequency converter box 2 (especially the radial component) forces the transmission rod 42, which is hinged to its inner wall, to swing. Since the other end of the transmission rod 42 is hinged to the second fixing member 45 on the sliding column 41, and the sliding column 41 is restricted to the sliding groove 48 of the column 4 and can only move axially, the swing of the transmission rod 42 is forcibly converted into the reciprocating linear motion of the sliding column 41 along the axis of the column 4 with a significantly amplified amplitude. By utilizing the lever principle, the high-frequency vibration of the frequency converter motor 1 is amplified into the effective mechanical stroke of the sliding column 41.

[0029] In this process, the energy storage spring 46 plays a key role. When the slide column 41 moves outward, the energy storage spring 46 is stretched and stores potential energy. When the slide column 41 moves inward, the energy storage spring 46 is compressed and stores potential energy. The extension and contraction of the energy storage spring 46 not only provides the force to reset the slide column 41, but more importantly, as a mechanical filter, it can absorb and buffer the impact vibration energy, making the movement of the slide column 41 more stable and regular, creating stable input conditions for subsequent energy conversion. The precise cooperation between the slider 47 and the groove 48 ensures the accuracy of the motion trajectory, eliminates lateral swaying, and concentrates all kinetic energy in the axial direction.

[0030] Phase Two The reciprocating linear motion of the slide column 41 drives the rack 6 at its top to reciprocate synchronously. This is one of the most innovative parts of the entire system. The mechanical full-bridge rectifier functions similarly to a rectifier bridge in a circuit, with the aim of converting an input with alternating directions into an output with a constant direction.

[0031] As attached Figure 5 , 6 As shown, the rack 6 drives the input gears 61 on both sides to rotate alternately in both directions. Taking the transmission path of the lower input gear 61 as an example, when the rack 6 moves to the right, it drives the input gear 61 to rotate clockwise. At this time, the upper output gear ring 62, which is directly meshed with the input gear 61, tends to rotate counterclockwise. Under this tendency, the pawl 67 installed in the gear ring quickly engages in the tooth groove of the ratchet 65 concentric with it under the action of friction, forming a "locked" state. Thus, the counterclockwise rotation of the upper output gear ring 62 is directly transmitted to the ratchet 65 through the pawl 67, causing the ratchet 65 and the output gear 68 fixed coaxially below it to rotate counterclockwise together. At the same time, the same input gear 61... It also drives the lower output gear ring 62 to rotate clockwise. At this time, the tip of the pawl 67 in the lower gear ring contacts the inclined surface of the back of the ratchet 65, and cannot be engaged in the tooth groove. Under the action of the return spring 66, the pawl 67 is lifted up and slides continuously on the back of the ratchet 65, making a slight "clicking" sound. This process is the "slipping" state. Therefore, the free rotation of the lower output gear ring 62 does not drive the ratchet 65. When the rack 6 moves to the left, the situation is completely reversed. The input gear 61 rotates counterclockwise, the upper output gear ring 62 rotates clockwise, and its pawl 67 slips, while the lower output gear ring 62 rotates counterclockwise, and its pawl 67 is engaged. This also drives the ratchet 65 and the output gear 68 to rotate counterclockwise.

[0032] It can be seen that, regardless of the direction of movement of the rack 6, the rotation direction of the lower output gear 68 is always kept counterclockwise due to the alternating operation of the two sets of symmetrically arranged ratchet 65-pawl 67 mechanisms. The transmission path principle on the upper side is exactly the same. However, since the meshing relationship between the rack 6 and the right input gear 61 is opposite to that on the left, the rotation direction of its final output gear 68 is always kept clockwise. This ingenious symmetrical design successfully converts the bidirectional reciprocating linear motion of the slide column 41 into a unidirectional continuous rotational motion of the two output gears 68 with constant direction but opposite rotation direction without loss.

[0033] Phase Three After obtaining unidirectional rotational power, the system does not directly drive the generator 10, but instead introduces a mechanical "buffer" or "voltage regulator" spring-loaded energy storage mechanism, as shown in the attached diagram. Figure 8 , 10 As shown in Figure 11, this is to address the intermittent and unstable vibration energy input characteristics of the variable frequency motor 1.

[0034] The output gear 68 on the left drives the large upper winding gear 8 through meshing, and the output gear 68 on the right drives another large upper winding gear 8. Each large upper winding gear 8 drives the small upper winding gear 81 below to rotate at high speed through the coaxial rotating shaft 82. The small upper winding gear 81 meshes with the mainspring gear 92 to further increase the speed, thereby driving the mainspring shaft 93 to rotate at high speed. The rotation of the mainspring shaft 93 causes the mainspring 94 to be wound up from the inner wall of the mainspring box 9 and tightly wound around the mainspring shaft 93. This process is called "winding", which is essentially converting the kinetic energy of rotation into the elastic potential energy of the deformation of the mainspring 94 and storing it.

[0035] Here, it is important to explain the force and motion relationship of the mainspring barrel 9. The inner end of the mainspring 94 is fixed to the mainspring shaft 93, and the outer end is fixed to the inner wall of the mainspring barrel 9. During the winding process, the mainspring shaft 93 is the driving component. It overcomes the elastic force of the mainspring 94 and the static friction between the mainspring barrel 9 and the scraper 95 through the auxiliary mainspring 96, and winds the mainspring 94 tightly. At this time, the mainspring barrel 9 itself has a tendency to rotate due to the mainspring 94, but it is usually balanced by the initial static friction between the scraper 95 and the auxiliary mainspring 96, keeping it relatively still or slowly following.

[0036] When the mainspring 94 is wound to a certain extent and stores enough elastic potential energy, it becomes a stable power source. Driven by the elastic restoring force of the mainspring 94, it generates a continuous torque on the inner wall of the mainspring barrel 9. This torque drives the entire mainspring barrel 9 to begin rotating slowly and smoothly in the opposite direction. This characteristic of the mainspring allows it to release intermittent and impactful input energy smoothly and continuously, making it suitable for driving the generator 10, which requires a stable speed.

[0037] To prevent the mainspring 94 from being over-tightened and breaking under strong and continuous vibration, a secondary mainspring 96 and an L-shaped scraper 95 are designed. The secondary mainspring 96 is thinner and softer. When the mainspring 94 is close to full winding, the end of the secondary mainspring 96 is pulled out of the wound state. Once pulled out, it will come into contact with the L-shaped scraper 95 welded to the inner wall of the mainspring barrel 9. The scraper 95 will repeatedly hook the secondary mainspring 96, generating resistance and thus preventing the mainspring shaft 93 from continuing to wind the mainspring 94, which plays the role of mechanical limit and overload protection.

[0038] Phase 4 The stored elastic potential energy is released through the smooth rotation of the spring barrel 9. (See attached image) Figure 12 As shown, the external gear ring 91 fixed to the outer wall of the spring box 9 rotates accordingly. The external gear ring 91, through meshing with the first gear 101 and the second gear 105, forms a speed-increasing transmission chain, converting the low-speed, high-torque rotation of the spring box 9 into the high-speed rotation of the rotor of the generator 10, thereby meeting the speed requirements for efficient power generation of the generator. The rotor inside the generator 10 cuts the magnetic field lines of the stator magnetic field, generating alternating current according to the principle of electromagnetic induction. This current is processed by the rectification and voltage regulation circuit integrated inside the frequency converter box 2, and then converted into direct current suitable for storage and use.

[0039] The generated electrical energy is first sent to the built-in battery 21 for storage. The battery 21 serves as the system's "energy pool," achieving time-based decoupling between power generation and consumption. The stored electrical energy can continuously power the low-power circuits inside the inverter box 2.

[0040] The second rotating rod 106 of the output shaft of the generator 10 extends directly, and axial flow fan blades 103 are installed at the positions of the top heat dissipation port 3 and the bottom heat exhaust port 11. Since the rotation directions of the left and right spring boxes 9 are opposite, the output shafts of the two generators 10 also rotate in opposite directions. The bottom fan (located at the heat exhaust port 11) acts as an intake fan, actively drawing out the heat generated inside the variable frequency motor 1 during operation and bringing it into the lower space of the variable frequency box 2. The top fan (located at the heat dissipation port 3) acts as an exhaust fan, forcefully drawing out the hot air (including the heat generated by its own circuit and the hot air introduced from the motor) accumulated inside the variable frequency box 2 and discharging it into the external environment.

[0041] The two fans, which rotate in opposite directions, work together to form a forced convection cooling airflow channel from bottom to top between the housing of the variable frequency motor 1 and the variable frequency box 2. Most importantly, the energy that drives the two fans comes entirely from the recovered vibration energy of the motor, achieving active cooling with "zero additional energy consumption" and further improving the energy utilization efficiency and operational reliability of the system.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-powered variable frequency speed control motor based on vibration energy recovery, comprising a variable frequency motor (1), characterized in that: The variable frequency motor (1) is equipped with a variable frequency box (2) at its top. An energy storage component is installed inside the variable frequency box (2). The energy storage component includes a column (4) fixedly connected inside the variable frequency box (2). A sliding column (41) is slidably connected inside the column (4). An energy storage spring (46) is fixedly connected between the end of the sliding column (41) and the column (4). Several second fixing parts (45) are fixedly connected to the outer wall of the sliding column (41). A first fixing part (43) is provided at both the upper and lower ends of the inner wall of the variable frequency box (2) corresponding to the second fixing parts (45). A transmission rod (42) is hinged between the first fixing part (43) and the second fixing part (45). The end of the column (4) is provided with a swing assembly, which includes a rack (6) fixedly connected to the end of the column (4). Both sides of the rack (6) are meshed with input gears (61). Two output gear rings (62) are provided on the outer side of the input gears (61). The input gears (61) mesh with one of the output gear rings (62). The inner ring of the output gear rings (62) is hinged with pawls (67). A return spring (66) is fixedly connected between the pawls (67) and the output gear rings (62). A ratchet (65) is provided inside the output gear rings (62). The ratchet (65) cooperates with the pawls (67). An output gear (68) is provided on the lower side of the ratchet (65). A rotating rod (64) is fixedly connected between the ratchet (65) and the output gear (68). Both output gears (68) are fitted with an upper chord assembly, which includes an upper chord large gear (8) that meshes with the output gear (68), an upper chord small gear (81) is provided on the lower side of the upper chord large gear (8), and a rotating shaft (82) is fixedly connected between the upper chord large gear (8) and the upper chord small gear (81). Both of the aforementioned pinions (81) are fitted with a mainspring assembly. The mainspring assembly includes a mainspring gear (92) that meshes with the pinions (81). The bottom end of the mainspring gear (92) is fixedly connected to a mainspring shaft (93). The mainspring shaft (93) passes through the mainspring box (9) and is rotatably connected to it. The mainspring box (9) contains a mainspring (94). One end of the mainspring (94) is fixedly connected to the mainspring shaft (93). The other end of the mainspring (94) is fixedly connected to a secondary mainspring (96). Several L-shaped scrapers (95) are fixedly connected inside the mainspring box (9). The outer wall of the secondary mainspring (96) is in contact with the scrapers (95). An external gear ring (91) is fixedly connected to the outer wall of the mainspring box (9). Both of the external gear rings (91) are fitted with power generation components. The power generation components include two generators (10) installed in the frequency converter box (2). The output end of the generator (10) is fixedly connected to a second rotating rod (106). The outer wall of the second rotating rod (106) is fixedly connected to a second gear (105). The second gear (105) meshes with a first gear (101). The first gear (101) meshes with the external gear ring (91).

2. The self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The outer wall of the column (4) is provided with a through groove (44) corresponding to the second fixing member (45). The two sides of the outer wall of the sliding column (41) are fixedly connected with sliders (47). The inner wall of the column (4) is provided with a sliding groove (48) corresponding to the slider (47). The slider (47) is located in the sliding groove (48) and is slidably connected to it.

3. The self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The inverter box (2) is equipped with a storage battery (21), which is electrically connected to the generator (10).

4. The self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The bottom end of the first gear (101) is fixedly connected to the first rotating rod (102), and the bottom end of the first rotating rod (102) is rotatably connected to the inner bottom wall of the frequency converter box (2). The radius of the first gear (101) is greater than the radius of the second gear (105).

5. A self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The inverter box (2) has a heat dissipation port (3) and a heat exhaust port (11) at its upper and lower ends, respectively. The two second rotating rods (106) extend into the heat dissipation port (3) and the heat exhaust port (11), respectively. Several fan blades (103) are fixedly connected to the outer wall of the second rotating rods (106). The heat exhaust port (11) is connected to the inside of the inverter motor (1).

6. A self-powered variable frequency speed control motor based on vibration energy recovery according to claim 5, characterized in that: Both the heat dissipation port (3) and the heat exhaust port (11) are fixedly connected to a support block (104), and the second rotating rod (106) is rotatably connected to the support block (104).

7. A self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The bottom end of the input gear (61) is fixedly connected to a light rod (69), and the bottom ends of the light rod (69) and the rotating rod (64) are rotatably connected to a support frame (7). The rotating shaft (82) passes through the support frame (7) and is rotatably connected to it.

8. A self-powered variable frequency speed control motor based on vibration energy recovery according to claim 7, characterized in that: The output gear ring (62) is fixedly connected to a fixed frame (63) at both the upper and lower ends, and the light rod (69) passes through the fixed frame (63) and is rotatably connected to it.

9. A self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The variable frequency box (2) is provided with an adjustment component on its outer wall. The adjustment component includes a limiting post (5) fixedly connected to the outer wall of the variable frequency box (2). A threaded rod (51) is threadedly connected to the limiting post (5). One end of the threaded rod (51) is located outside the variable frequency box (2) and is fixedly connected to a knob (52). The other end of the threaded rod (51) passes through the end of the column (4) and is fixedly connected to a limiting block (53). The limiting block (53) is in contact with the end of the sliding column (41).

10. A self-powered variable frequency speed control motor based on vibration energy recovery according to claim 1, characterized in that: The bottom end of the spring shaft (93) is rotatably connected to the bottom wall of the inverter box (2).

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