Vibration energy collector with bidirectionally rotating magnet coil

Abstract

The invention belongs to the technical field of motors, particularly relates to a vibration energy collector with a bidirectionally rotating magnet coil, and solves the technical problem that the energy of vibration in the environment is incompletely utilized due to the fact that an existing vibration energy collector with electromagnetic induction as a core only takes a magnet as a rotor and does not take a coil part as a part of rotation. The invention discloses a vibration energy collector with a bidirectionally rotating magnet coil. The vibration energy collector comprises two staggered racks, a spring, a carbon fiber rod, a coil rotor, a magnet rotor, a first sliding shell, a second sliding shell, two optical shafts and four one-way gears, wherein the coil rotor and the magnet rotor are positioned between a front pair of rack plates and a rear pair of rack plates; the first sliding shell and the second sliding shell are arranged front and back; bidirectional rotation of the coil rotor and the magnet rotor is realized through staggered racks on two sides and one-way bearings in opposite directions, so that the energy conversion efficiency is improved; through cooperation of the gear and the rack, linear vibration energy is converted into rotating kinetic energy, the energy utilization rate is increased, and the energy conversion efficiency is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of motors, and in particular relates to a vibration energy collector with a bidirectionally rotating magnetic coil, which is used for converting vibration energy in the environment into electrical energy. Background Art

[0002] Vibration energy is a green renewable energy that is widely present in nature, such as the energy of body vibration when animals move, the vibration energy when trains run, and the vibration energy driven by waves in the ocean. Converting vibration energy into electrical energy can not only utilize the vibration energy in the environment, but also supply it to humans as energy. Therefore, the development of vibration energy harvesters can promote the development of renewable energy technology and achieve sustainable use of energy.

[0003] Through the summary of the above vibration energy harvesters, it is found that the existing harvesters such as those with piezoelectric materials as the core are sensitive to environmental conditions (such as temperature and humidity), which may affect their harvesting performance, and many piezoelectric vibration energy harvesters only work in a specific vibration direction and are not universally applicable. Others such as laminated energy harvesters have low energy conversion efficiency. Chinese patent CN118739523A fixedly connects the magnet component to the rotor component, and the coil component is fixedly installed in the collector stator component. The coil component is not used as part of the transmission, which also leads to low energy conversion efficiency. Therefore, it is of great significance to develop a high-efficiency vibration energy harvester and expand its scope of use. Summary of the invention

[0004] The present invention provides a vibration energy harvester with bidirectional rotation of magnet and coil to solve the technical problem that the existing vibration energy harvester with electromagnetic induction as the core only uses magnet as rotor and fails to use the coil part as part of the transmission, resulting in incomplete utilization of the energy of vibration in the environment.

[0005] A vibration energy harvester with bidirectional rotation of a magnetic coil, comprising: The two-sided offset rack includes a base, a pair of rack plates vertically installed at the front of the base, and a pair of rack plates vertically installed at the rear of the base; the two rack plates in a pair are parallel and arranged in a front-to-back offset manner at a certain distance, a slide rail is vertically arranged on the outer side of the rack plate or the plate body, and a rack is arranged on the inner side of the rack plate; Spring and carbon fiber rod; at least one boss is provided on the base of the two-sided offset racks near the outer side of each rack plate, a carbon fiber rod is vertically mounted on each boss, and a spring with a bottom in contact with the boss is sleeved on each carbon fiber rod; The magnet rotor and coil rotor are located between the front and rear pairs of rack plates. One side of the coil rotor is provided with a center hole and a through-hole conductive slip ring is installed in the hole. The inner wall of the center hole is connected to the rotor part of the through-hole conductive slip ring. The other side is provided with a cylindrical hole inward from the center. The center of one side of the magnet rotor is provided with a cylindrical boss corresponding to the cylindrical hole of the coil rotor. The other side is provided with a center hole. A bearing is installed on the cylindrical boss and extends into the cylindrical hole. The outer ring of the bearing is connected to the inner wall of the cylindrical hole. A first sliding housing and a second sliding housing are arranged front to back, the rear side and the bottom of the first sliding housing are open structures, and the front side and the bottom of the second sliding housing are open structures. After the first sliding housing is movably overlapped with the front side of the second sliding housing to form a shell, it covers the coil rotor, the magnet rotor, the two pairs of rack plates and the outside of the carbon fiber rod from top to bottom. The bottoms of the first and second sliding housings are pressed on the springs, and the tops of the first and second sliding housings are provided with holes corresponding to the carbon fiber rods; a hole is provided on the front side wall of the first sliding housing, and a support bearing is installed in the hole; a hole is provided on the rear side wall of the second sliding housing, and a threading rotor with a bearing-rotor-bearing concentric structure is installed in the hole, and a threading hole is provided on the rotor of the threading rotor; the first sliding housing realizes sliding cooperation with the slide rails of a pair of gear plates at the front through a pair of limiting columns provided on the inner wall, and the second sliding housing realizes sliding cooperation with the slide rails of a pair of gear plates at the rear through a pair of limiting columns provided on the inner wall; Two optical axes and four one-way gears, wherein the one-way gears include a one-way bearing and a gear fixed to the outer ring of the one-way bearing; one end of an optical axis is inserted into a hole reserved by a through-hole conductive slip ring and connected to the rotor part of the through-hole conductive slip ring, and the other end passes through a pair of one-way gears in sequence and is connected to the threading rotor on the second sliding housing, and the pair of one-way gears are respectively meshed with a pair of gear plates located at the rear of the base; one end of another optical axis is inserted into the central hole of the magnet rotor and is fixedly connected to the magnet rotor, and the other end passes through a pair of one-way gears in sequence and is connected to the support bearing on the first sliding housing, and the pair of one-way gears are respectively meshed with a pair of gear plates located at the front of the base; the optical axis is fixedly connected to the inner rings of the one-way bearings in the two one-way gears on it, the pair of one-way gears on the same optical axis rotate in the same direction, and the one-way gears on different optical axes rotate in opposite directions; The conductor of the coil rotor is connected to the rotor wire end of the through-hole conductive slip ring, and the stator conductor of the through-hole conductive slip ring passes through the interval between a pair of rack plates at the rear of the base and the threading hole on the threading rotor to connect the load.

[0006] Furthermore, the upper rear portion of the first sliding housing protrudes backward, the lower front portion of the second sliding housing protrudes forward, and the rear protruding portion of the first sliding housing is clamped above the front protruding portion of the second sliding housing to form a movable housing.

[0007] Furthermore, a support boss is installed in the support bearing of the first sliding housing, the front end of the support boss extends out of the first sliding housing, and the rear end of the support boss is connected to the front end of the optical axis on the magnet rotor.

[0008] Furthermore, one side of the coil rotor and one side of the magnet rotor are each provided with five grooves, coils connected in series are respectively installed in the five grooves of the coil rotor, grooves are opened between adjacent grooves to allow the series wires to pass through, and small holes are opened between the five grooves of the coil rotor to pass through both sides of the coil rotor, and the wires of the coil rotor are connected to the rotor wire ends of the through-hole conductive slip ring after passing through the small holes; magnets are installed in the five grooves of the magnet rotor, and the magnets are arranged in the order of "N", "S", "N", "S", "N" on the side facing the coil rotor.

[0009] Furthermore, four threading holes are formed on the threading rotor at equal intervals around the center.

[0010] Furthermore, there are four bosses, four carbon fiber rods and four springs on the base.

[0011] The present invention proposes a vibration energy harvester with bidirectional rotation of magnet coils, which optimizes the previous method of generating current by rotating magnetic flux lines cutting the coils with only magnets as rotors. The bidirectional rotation of magnets and coils means that if the magnets rotate in a clockwise direction and the coils rotate in a counterclockwise direction, the relative movement of the two increases the speed of the rotation of magnetic flux lines in disguised form, speeds up the cutting of magnetic flux lines by the coils, and thus increases the output of electric energy; the through-hole conductive slip rings and threaded rotors used also solve the problem of winding of the wires connected to the load caused by the rotation of the coils in the past. The power drive part adopts a gear rack transmission structure, and the parts of the tooth surfaces of the two rack plates facing each other are staggered with the width of a gear, and are fixed on the base to form a pair of offset rack plates. A one-way bearing is installed at the center of the gear, and the two gears with one-way bearings installed are placed on a pair of offset rack plates in the same direction. The coil rotor and the magnet rotor are respectively connected to the two one-way gears and are respectively installed on a pair of offset rack plates. The gears move up and down along the rack with the vibration energy, driving the magnet rotor and the coil rotor to move relative to each other. Due to the unidirectional rotation characteristics of a single bearing, the output voltage has the characteristics of a large amplitude and a small range, which is conducive to the back-end energy storage and improves the overall output performance. The vibration energy harvester can be installed on an object or moving object with a vibration source, such as near a train track, to collect vibration energy in the environment when the train passes, and charge the signal light; it can also be installed on an animal robot, to collect energy and convert electrical energy when the animal robot runs, and power small sensors or micro-application equipment. The collector can be flexibly installed according to vibration sources in different directions and environments, thereby expanding its scope of use.

[0012] Beneficial effects of the present invention: (1) The bidirectional rotation function of the coil and the magnet in the present invention can increase the speed at which the magnetic flux lines cut the coil under the same vibration energy environment, thereby increasing the output voltage and improving the efficiency of converting vibration energy into electrical energy; (2) The design of converting vibration energy into rotational kinetic energy in the present invention can more conveniently convert energy forms in mechanical motion, and maximize the use of vibration energy in the environment in a limited space, thereby improving the efficiency of converting vibration energy into electrical energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The figure is a schematic diagram of the assembly of a vibration energy harvester with bidirectional rotation of a magnetic coil according to the present invention.

[0014] Figure 2 for Figure 1 Right view of .

[0015] Figure 3 Schematic diagram of the explosion of the vibration energy harvester.

[0016] Figure 4 It is a schematic diagram of the structure of the side of the coil rotor facing the magnet rotor.

[0017] Figure 5 This is a schematic diagram of the structure of the other side of the coil rotor.

[0018] Figure 6 It is a schematic diagram of the structure of the side of the magnet rotor facing the coil rotor.

[0019] Figure 7 It is a schematic diagram of the three-dimensional structure of the magnet rotor.

[0020] Figure 8 It is a schematic diagram of the cross-sectional structure of the connection between the magnet rotor and the coil rotor.

[0021] Fig. 9 This is a front view schematic diagram of the cooperation between the one-way gear and the rack after the sliding housing is removed.

[0022] Fig.10 It is a three-dimensional perspective schematic diagram of the cooperation between the one-way gear and the rack after removing the sliding housing.

[0023] Fig.11 This is a schematic diagram of the positions of the coil rotor, one-way gear and threading rotor.

[0024] Fig.12 It is a schematic diagram of the top view of the structure of the present invention (without the sliding housing).

[0025] Fig.13 It is a schematic diagram of the present invention connected to an external load.

[0026] 1- two-sided offset racks, 2- supporting bosses, 3- first sliding housing, 4- second sliding housing, 5- spring, 6- threading rotor, 7- carbon fiber rod, 8- bearing, 9- one-way gear, 10- coil rotor, 11- magnet rotor, 12- optical axis, 13- through-hole conductive slip ring, 14- supporting bearing. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0028] refer to Figure 1-13 A vibration energy harvester with bidirectional rotation of magnetic coil has the following specific embodiments. Its structure includes: The two-sided offset rack 1 comprises a base, a pair of rack plates vertically mounted on the front of the base, and a pair of rack plates vertically mounted on the rear of the base; the two rack plates in a pair are parallel and arranged at a certain distance and staggered front and back, a slide rail is vertically arranged on the outer side of the rack plate or on the plate body, and a rack is arranged on the inner side edge of the rack plate (the side facing the rack plate); Spring 5 and carbon fiber rod 7; at least one boss is provided on the base of the two-sided offset rack 1 near the outer side of each rack plate, and a carbon fiber rod 7 is vertically installed on each boss, and a spring 5 with a bottom in contact with the boss is sleeved on each carbon fiber rod 7; The magnet rotor 11 and the coil rotor 10 are located between the front and rear pairs of rack plates. One side of the coil rotor 10 is provided with a center hole and a through-hole conductive slip ring 13 is installed in the hole. The inner wall of the center hole is connected to the rotor part of the through-hole conductive slip ring 13. The other side is provided with a cylindrical hole inward from the center. The center of one side of the magnet rotor 11 is provided with a cylindrical boss corresponding to the cylindrical hole of the coil rotor 10. The other side is provided with a center hole. The cylindrical boss is installed with a bearing 8 and extends into the cylindrical hole. The outer ring of the bearing 8 is connected to the inner wall of the cylindrical hole. The first sliding housing 3 and the second sliding housing 4 are arranged front and back, the rear side and the bottom of the first sliding housing 3 are open structures, and the front side and the bottom of the second sliding housing 4 are open structures. The first sliding housing 3 is movably overlapped with the front side of the second sliding housing 4 to form a shell, and then covers the coil rotor 10, the magnet rotor 11, the two pairs of rack plates and the carbon fiber rod 7 from top to bottom. The bottoms of the first and second sliding housings are pressed on the spring 5, and the tops of the first and second sliding housings are provided with holes corresponding to the carbon fiber rod 7; the front side wall of the first sliding housing 3 is provided with a hole, and a A supporting bearing 14 is provided, and a hole is provided on the rear side wall of the second sliding housing 4, in which a threading rotor 6 having a bearing-rotor-bearing concentric structure is installed, and a threading hole is provided on the rotor of the threading rotor 6; the first sliding housing 3 is slidably matched with the slide rail of a pair of gear plates at the front through a pair of limit columns provided on the inner wall, and the second sliding housing 4 is slidably matched with the slide rail of a pair of gear plates at the rear through a pair of limit columns provided on the inner wall; the bottom of the first and second sliding housings can be directly pressed on the spring 5, or can be pressed on the spring 5 through an annular plate corresponding to the spring 5 to transmit the force of the spring 5.

[0029] Two optical axes 12 and four one-way gears 9, wherein the one-way gears 9 include one-way bearings and gears fixed to the outer rings of the one-way bearings; one end of one optical axis 12 is inserted into the hole reserved by the through-hole conductive slip ring 13 on the coil rotor 10 and connected to the rotor part of the through-hole conductive slip ring 13, and the other end passes through a pair of one-way gears 9 in sequence and is connected to the threading rotor 6 on the second sliding housing 4, and the pair of one-way gears 9 are respectively meshed with a pair of gear plates located at the rear of the base; one end of another optical axis 12 is inserted into the central hole of the magnet rotor 11 and is fixedly connected to the magnet rotor 11, and the other end passes through a pair of one-way gears 9 in sequence and is connected to the support bearing 14 on the first sliding housing 3, and the pair of one-way gears 9 are respectively meshed with a pair of gear plates located at the front of the base; the optical axis 12 is fixedly connected to the inner rings of the one-way bearings in the two one-way gears 9 on it, and the pair of one-way gears on the same optical axis 12 have the same rotation direction, and the one-way gears 9 on different optical axes 12 have opposite rotation directions; The wires of the coil rotor 10 are connected to the rotor wire ends of the through-hole conductive slip ring 13 , and the stator wires of the through-hole conductive slip ring 13 pass through the gap between a pair of rack plates at the rear of the base and the holes on the threading rotor 6 to connect to the load.

[0030] It can be seen that the outermost layer of the vibration energy harvester is the first sliding shell 3 and the second sliding shell 4. The outer shell material is white resin, which can effectively resist corrosion while reducing the weight, protect the internal parts of the collector, and increase the service life. The two sliding shells are restricted to 1 degree of freedom by the two-sided offset racks 1 and the carbon fiber rod 7, and can only slide along the predetermined slide rail. When the two sliding shells slide up and down under the action of the vibration energy in the environment, they contact the spring 5. The spring 5 can store excess energy by compression and protect the structural parts from being damaged by excess energy. The spring 5 releases the stored energy by stretching. The compression and stretching characteristics of the spring 5 can avoid excess energy loss to the greatest extent, thereby achieving the purpose of improving the energy conversion efficiency.

[0031] In the above specific implementation scheme, the cylindrical hole in the center of the coil rotor 10 corresponds to the cylindrical boss of the magnet rotor 11, and a bearing 8 is coaxially installed on the outer periphery of the cylindrical boss to reduce the friction between the coil rotor 10 and the magnet rotor 11 during rotation and enhance the energy conversion efficiency. The through-hole conductive slip ring 13 is installed behind the coil rotor 10, and the optical axis 12 is inserted into the reserved holes behind the magnet rotor 11 and the through-hole conductive slip ring 13, and respectively passes through the gears equipped with two one-way bearings, and the one-way gear 9 is installed on the two-sided offset rack 1. The optical axis 12 on one side of the coil rotor 10 passes through the threading rotor 6 and is installed on the second sliding housing 4, while the optical axis 12 on one side of the magnet rotor 11 is inserted into the supporting boss 2 and installed on the first sliding housing 3. Through the above steps, the problem of low energy utilization rate caused by the previous vibration energy harvester having only a magnet as a rotor and the coil being in a static or incomplete motion state due to the need to connect a load is solved, and at the same time, the vibration energy is more efficiently converted into the kinetic energy of the magnet and coil rotation. The bidirectional rotation of the magnet coil can further increase the rate at which the magnetic flux lines cut the coil. Rotation can more conveniently convert energy forms in mechanical motion and is easier to control than linear motion. It can maximize the use of vibration energy in the environment in a limited space, and the rolling friction motion of the rack and gear can further reduce energy loss.

[0032] As a preferred solution, there are four bosses, four carbon fiber rods 7 and four springs 5 ​​on the substrate. Figure 1 It can also be seen that the upper rear portion of the first sliding housing 3 protrudes backward, and the lower front portion of the second sliding housing 4 protrudes forward, and the protruding portion of the rear side of the first sliding housing 3 is stuck above the protruding portion of the front side of the second sliding housing 4, and they are stacked into a movable shell, realizing synchronous up and down vibration while maintaining a certain degree of independence.

[0033] refer to Figure 3, an exploded schematic diagram of a vibration energy harvester with bidirectional rotation of a magnetic coil, the overall installation method of the harvester is as follows: ①, fix the two-sided offset rack 1 on the vibration source, and insert the four carbon fiber rods 7 on the boss of the base of the two-sided offset rack 1. ②, pass the spring 5 through the carbon fiber rod 7 and place it on the boss of the base of the two-sided offset rack 1, install the through-hole conductive slip ring 13 on the hole reserved on the back of the coil rotor 10, and connect the coil wire to the rotor wire end of the through-hole conductive slip ring 13, then insert the two optical axes 12 through the two one-way gears 9 respectively into the reserved holes of the through-hole conductive slip ring 13 on the back of the coil rotor 10 and the reserved holes on the back of the magnet rotor 11, wherein the one-way gears 9 on both sides of the coil rotor 10 and the magnet rotor 11 are in opposite directions. ③, install the threading rotor 6 on the hole reserved in the center of the second sliding housing 4, and then install the second sliding housing 4 along the guide rail outside the two-sided offset rack 1 and the direction of the carbon fiber rod 7. ④. Put the optical axis 12, one-way gear 9, coil rotor 10 and magnet rotor 11 installed in ② into the two-sided offset rack 1. Because there is a certain gap between the two-sided offset rack 1 and the two rotors, first put the combination in ② toward one side of the magnet rotor 11. After the second sliding housing 4 enters the slide rail outside the two-sided offset rack 1, put the combination in ② to the middle of the two-sided offset rack 1. At this time, the optical axis 12 extends out of the housing and is fixed with the threading rotor 6. ⑤. Install the first sliding housing 3 in the same way along the slide rail outside the two-sided offset rack 1 and the direction of the carbon fiber rod 7. In ④, the optical axis 12 on the side of the magnet rotor 11 does not pass through the first sliding housing 3. After the first sliding housing 3 is installed, connect the support boss 2 to the optical axis 12 on the back of the magnet rotor 11 through the support bearing 14 in the center of the first sliding housing 3, and then install the support bearing 14 on the hole reserved in the center of the first sliding housing 3. After steps ①, ②, ③, ④, and ⑤, the vibration energy harvester with bidirectional rotation of the magnetic coil is installed.

[0034] refer to Figure 4-7 As shown in the figure, the coil rotor 10 and the magnet rotor 11 each have five grooves. The coils are placed in series in the coil rotor 10. The grooves between the grooves of the coil rotor 10 allow the series wires to pass through, and finally two wires are led out through the small holes behind the coil rotor 10. The magnets are installed in the grooves of the magnet rotor 11 in the manner of "N", "S", "N", "S", "N" (either clockwise or counterclockwise arrangement is acceptable). After the cylindrical boss in the center of the magnet rotor 11 is installed with the bearing 8, it matches the cylindrical hole in the center of the coil rotor 10.

[0035] refer to Figure 8-10 as well as Fig.12, the coil rotor 10 and the magnet rotor 11 are connected by bearings 8 and can rotate relative to each other. The driving part of the collector includes four one-way gears 9 and a two-sided offset rack 1. If the one-way gear 9 on one side of the coil rotor 10 is set to rotate clockwise, the one-way gear 9 on the side of the magnet rotor 11 rotates counterclockwise. The one-way gear 9 and the rack can ensure that the linear motion can be converted into rotational motion during the up and down movement (the coil rotor 10 always rotates in the same direction, the magnet rotor 11 also always rotates in the same direction, and the two rotate in opposite directions). At the same time, the alternating placement of adjacent magnet poles can further improve the rate of change of magnetic flux. A pair of racks are respectively meshed with two one-way gears 9, and corresponding slide rail structures are added to the outer sides of the two-sided offset racks 1 to ensure the stable vibration of the collector and improve reliability.

[0036] refer to Fig.11 and Fig.13 The coil wire is connected to the rotor wire end of the through-hole conductive slip ring 13, and the stator wire of the through-hole conductive slip ring 13 passes through the hollow part of the two-sided offset rack 1, and passes through the threading rotor 6 to be directly connected to the load. The two-sided offset rack 1 is provided with a rectangular strip-shaped hollow, which can better adapt to the movement of the coil rotor 10 up and down the rack with the one-way gear 9, so that the wire can adapt to the movement of the collector and connect to the external load. Fig.11 It can be seen that the threading rotor 6 has four threading holes equidistantly arranged around the center.

[0037] The structural features of each component of the present invention are: Coil rotation structure design. In the existing magnet-coil magnetic induction power generation structure, the general processing method for the coil is to connect the copper coil in series and leave two wires for connecting the external load. If a rotating force is applied to the coil rotor, the lead wires are easy to entangle together, thereby destroying the original structure and affecting the power generation function. In the present invention, after the coil is installed in the coil rotor 10, the through-hole conductive slip ring 13 is installed on the back of the coil rotor 10, and the coil wire is connected to the rotor wire end of the through-hole conductive slip ring 13. After the stator wire passes through the rectangular hole reserved by the two-sided offset rack 1, it passes through the threading rotor 6 of the bearing-rotor-bearing concentric structure and directly connects to the external load, thereby realizing the function of coil rotation. The through-hole conductive slip ring 13 is an existing device, including a rotor part and a stator part, which can be coaxially arranged and can rotate relative to each other, and a center hole is reserved for passing the optical axis 12. The threading rotor 6 is a structure in which a rotor is installed between two bearings, that is, the innermost bearing is connected to the optical axis 12, the outer ring of the bearing is connected to the hollow rotor (made of resin material), and an outer bearing is connected to the outside of the rotor, and the outer bearing is connected to the hole on the rear side wall of the second sliding shell 4. This structure can ensure that the wire passing through the rotor will not rotate with the rotation of the optical axis 12.

[0038] Design of vibration energy conversion into rotational kinetic energy. After the magnet and coil are installed on the magnet rotor 11 and the coil rotor 10 respectively, the optical axis 12 is passed through two gears installed with one-way bearings, and connected to the magnet rotor 11 and the coil rotor 10 respectively, and the one-way gear 9 is partially installed in the two-sided offset rack 1. A sliding housing along the rack direction is installed outside the two-sided offset rack 1, and the optical axis 12 is passed through the hole reserved in the center of the sliding housing. The sliding housing is connected to the base of the two-sided offset rack 1 through the carbon fiber rod 7 and the spring 5. Its first function is to ensure that the one-way gear 9 rolls on the rack without falling off; the second function is to limit the movement range of the one-way gear 9 in the vertical direction, and the degree of freedom is limited to 1; the third function is to use the characteristic of the spring 5 that can store energy, reduce the damage of vibration to the structure, and release the energy stored in the spring 5 when needed. The one-way bearing is an existing structure. The one-way bearing and the gear form a one-way gear 9 to ensure that when the gear moves up and down, the one-way bearing can only rotate in one direction, ensuring that the coil rotor 10 or the magnet rotor 11 can only rotate in one direction.

[0039] The above-mentioned implementation method only expresses the implementation mode of the present invention, and does not limit the patent scope of the present invention. It should be pointed out that any modification, equivalent substitution, improvement, etc. made without departing from the concept of the present invention shall fall within the protection scope of the present invention.

Claims

1. A vibration energy harvester with bidirectional rotation of magnetic coils, characterized in that: include: A two-sided offset rack (1), the two-sided offset rack (1) comprising a base, a pair of rack plates vertically mounted on the front of the base, and a pair of rack plates vertically mounted on the rear of the base; the two rack plates in a pair are parallel and arranged at a certain distance and offset from front to back, a slide rail is vertically arranged on the outer side of the rack plate or on the plate body, and a rack is arranged on the inner side of the rack plate; A spring (5) and a carbon fiber rod (7); at least one boss is provided on the base of the two-sided offset rack (1) near the outer side of each rack plate, a carbon fiber rod (7) is vertically mounted on each boss, and each carbon fiber rod (7) is sleeved with a spring (5) whose bottom contacts the boss; A magnet rotor (11) and a coil rotor (10) are located between the front and rear pairs of rack plates, wherein one side of the coil rotor (10) is provided with a center hole and a through-hole conductive slip ring (13) is installed in the hole, the inner wall of the center hole is connected to the rotor part of the through-hole conductive slip ring (13), and the other side is provided with a cylindrical hole inwardly at the center; a cylindrical boss corresponding to the cylindrical hole of the coil rotor (10) is provided at the center of one side of the magnet rotor (11), and the other side is provided with a center hole; a bearing (8) is installed on the cylindrical boss and extends into the cylindrical hole, and the outer ring of the bearing (8) is connected to the inner wall of the cylindrical hole; A first sliding housing (3) and a second sliding housing (4) are arranged front and back, the rear side and bottom of the first sliding housing (3) are open structures, and the front side and bottom of the second sliding housing (4) are open structures. The first sliding housing (3) is movably overlapped with the front side of the second sliding housing (4) to form a shell, and then covers the coil rotor (10), the magnet rotor (11), two pairs of rack plates and the outside of the carbon fiber rod (7) from top to bottom. The bottoms of the first and second sliding housings are pressed on the spring (5), and the tops of the first and second sliding housings are opened with A hole corresponding to the carbon fiber rod (7); a hole is opened on the front side wall of the first sliding housing (3), a support bearing (14) is installed in the hole; a hole is opened on the rear side wall of the second sliding housing (4), a threading rotor (6) having a bearing-rotor-bearing concentric structure is installed in the hole, and a threading hole is opened on the rotor of the threading rotor (6); the first sliding housing (3) achieves sliding cooperation with the slide rails of the front pair of gear plates through a pair of limit columns arranged on the inner wall, and the second sliding housing (4) achieves sliding cooperation with the slide rails of the rear pair of gear plates through a pair of limit columns arranged on the inner wall; Two optical axes (12) and four one-way gears (9), wherein the one-way gears (9) include a one-way bearing and a gear fixed to the outer ring of the one-way bearing; one end of an optical axis (12) is inserted into a hole reserved in a through-hole conductive slip ring (13) and connected to a rotor portion of the through-hole conductive slip ring (13); the other end passes through a pair of one-way gears (9) in sequence and is connected to a threading rotor (6) on a second sliding housing (4); the pair of one-way gears (9) are respectively meshed with a pair of gear plates located at the rear of the base; the other optical axis (12) One end is inserted into the center hole of the magnet rotor (11) and fixedly connected to the magnet rotor (11), and the other end passes through a pair of one-way gears (9) in sequence and is connected to a support bearing (14) on the first sliding housing (3), the pair of one-way gears (9) respectively meshing with a pair of gear plates located at the front of the base; the optical axis (12) is fixedly connected to the inner rings of the one-way bearings in the two one-way gears (9) thereon, the pair of one-way gears (9) on the same optical axis (12) rotate in the same direction, and the one-way gears (9) on different optical axes (12) rotate in opposite directions; The conducting wire of the coil rotor (10) is connected to the rotor wire end of the through-hole conductive slip ring (13), and the stator conducting wire of the through-hole conductive slip ring (13) passes through the gap between a pair of rack plates at the rear of the base and the threading hole on the threading rotor (6) and is connected to the load.

2. A vibration energy harvester with bidirectional rotation of magnetic coils as claimed in claim 1, characterized in that: The upper rear portion of the first sliding housing (3) protrudes backwards, the lower front portion of the second sliding housing (4) protrudes forwards, and the protruding portion of the rear side of the first sliding housing (3) is clamped above the protruding portion of the front side of the second sliding housing (4), and are stacked to form a movable housing.

3. A vibration energy harvester with bidirectional rotation of magnetic coils as claimed in claim 1, characterized in that: A support boss (2) is installed in the support bearing (14) of the first sliding housing (3), the front end of the support boss (2) extends out of the first sliding housing (3), and the rear end of the support boss (2) is connected to the front end of the optical axis (12) on the magnet rotor (11).

4. A vibration energy harvester with bidirectional rotation of magnetic coils as claimed in claim 1, characterized in that: One side of the coil rotor (10) and one side of the magnet rotor (11) are each provided with five grooves. Coils connected in series are respectively installed in the five grooves of the coil rotor (10). A groove is provided between adjacent grooves to allow the series-connected wires to pass through. Small holes are provided between the five grooves of the coil rotor (10) to penetrate through both sides of the coil rotor (10). The wires of the coil rotor (10) pass through the small holes and are connected to the rotor wire ends of the through-hole conductive slip ring (13). Magnets are installed in the five grooves of the magnet rotor (11). The five magnets are arranged in the order of "N", "S", "N", "S", "N" facing one side of the coil rotor (10).

5. A vibration energy harvester with bidirectional rotation of magnetic coils as claimed in claim 1, characterized in that: The threading rotor (6) has four threading holes formed on the rotor at equal intervals around the center.

6. A vibration energy harvester with bidirectional rotation of magnetic coils as described in any one of claims 1 to 5, characterized in that: There are four bosses, four carbon fiber rods (7) and four springs (5) on the base.

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