Energy-harvesting shock absorber

Abstract

The application relates to an energy collection shock absorber mainly comprising a first electromagnetic energy-absorbing shock absorbing device. The first electromagnetic energy-absorbing shock absorbing device comprises a first base, a first pipeline assembly and a first magnet assembly. The first base is annular; the first pipeline assembly is annular and is installed on the first base; the first pipeline assembly is provided with a first coil which is arranged around the first pipeline assembly; and the first magnet assembly is arc-shaped and is configured to be capable of freely sliding in the pipeline direction in the first pipeline assembly. The energy collection shock absorber is designed as a whole in an annular shape, vibration energy from multiple directions is absorbed through rotation of the first magnet assembly in the annular first pipeline assembly, and kinetic energy of the first magnet assembly is converted into electric energy through rotation of the first magnet assembly in the first pipeline assembly with the first coil, so that energy collection is completed while multiple-direction vibration elimination is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of energy absorption and vibration reduction, and particularly relates to an energy collection vibration reducer. BACKGROUND

[0002] Vibration energy, as a kind of energy widely existing in nature, has great development and application potential, such as the fluctuation of waves, mechanical vibration, vibration of large-span bridges and high-rise buildings, etc. However, most of the vibrations in life are harmful, and the existence of harmful vibrations can not only affect the normal operation of instruments and equipment, but also can cause the shortening of the service life. With the development of China's economy, people's living environment has also undergone tremendous changes, from low-rise buildings to high-rise and super high-rise buildings, and many large-span bridge structures have also appeared. Therefore, eliminating harmful vibrations of these high-rise buildings and large-span structures and improving the stability of large building structures are necessary prerequisites to ensure the safe operation of the structures, and the collection of vibration energy has also attracted the consideration of many researchers.

[0003] At present, the damping devices used can only absorb vibration in a single direction, and cannot convert the vibration into usable energy. For example, the Chinese patent “vibration energy collection device”, application number CN202121821758.3, uses a magnet to move up and down to cut the coil to generate electricity, which needs to compress the spring, waste vibration energy, and can only move in one direction. However, the vibration generated in the actual structure is multidirectional. SUMMARY

[0004] The application provides an energy collection vibration reducer, which is used to solve the problem that the multidirectional vibration generated in the structure cannot be eliminated and effectively recycled in the prior art.

[0005] The first aspect of the application provides an energy collection vibration reducer, which mainly comprises a first electromagnetic energy absorption and vibration reduction device, and the first electromagnetic energy absorption and vibration reduction device comprises:

[0006] a first base, which is in the shape of a circular ring;

[0007] a first pipeline assembly, which is in the shape of a circular ring and is installed on the first base; the first pipeline assembly has a first coil, which is arranged around the first pipeline assembly for one turn;

[0008] a first magnet assembly, which is in the shape of a circular arc and is configured to be able to freely slide in the pipeline direction within the first pipeline assembly.

[0009] The energy collection shock absorber is designed as a whole in a circular ring shape, absorbs vibration energy from multiple directions by rotating the first magnet assembly in the circular ring-shaped first pipeline assembly, and converts kinetic energy of the first magnet assembly into electric energy by rotating the first magnet assembly in the first pipeline assembly with the first coil, thereby achieving multi-directional vibration elimination and energy collection.

[0010] In an embodiment, the outer edges of the first base are uniformly provided with a plurality of bolt holes, and the bolt holes are equipped with first bolts for fixing the first base to the corresponding structure.

[0011] In an embodiment, the first pipeline assembly includes a first inner pipeline, a first coil, and a first outer pipeline, the first outer pipeline is sleeved outside the first inner pipeline, the first coil is arranged around the first inner pipeline, and the first coil is located between the first inner pipeline and the first outer pipeline.

[0012] In an embodiment, the first magnet assembly includes a first magnet, the first magnet is provided with a first bracket at both ends, the bottom and the left and right sides of the first bracket are provided with first rolling assemblies, and the first rolling assemblies are in sliding fit with the inner wall of the first pipeline assembly.

[0013] In an embodiment, the bottom and the left and right sides of the inner wall of the first pipeline assembly are provided with track grooves, the track grooves are arranged along the axial direction of the first pipeline assembly, and the track grooves are in sliding fit with the corresponding first rolling assemblies.

[0014] In an embodiment, the energy collection shock absorber further includes a piezoelectric energy absorption and damping device, the piezoelectric energy absorption and damping device is in a circular ring shape and is nested inside the first electromagnetic energy absorption and damping device; the piezoelectric energy absorption and damping device includes:

[0015] A second base, the second base is in a circular ring shape;

[0016] A protective shell, the protective shell is in a circular ring shape and is installed on the second base to form a closed annular cavity with the second base;

[0017] A piezoelectric energy collector, the piezoelectric energy collector is located in the annular cavity.

[0018] In an embodiment, the inner edges of the second base are uniformly provided with a plurality of bolt holes, and the bolt holes are equipped with third bolts for fixing the second base to the corresponding structure.

[0019] In an embodiment, the piezoelectric energy collector is a plurality of piezoelectric energy collectors arranged in an annular array in the annular cavity.

[0020] In an embodiment, the piezoelectric energy collector comprises two arc-shaped piezoelectric sheets, the first ends of the two piezoelectric sheets are connected by an energy collection beam to form an open circular ring; the second end of each piezoelectric sheet is provided with a third magnet.

[0021] The second aspect embodiment of the present application also provides an energy collection shock absorber, mainly comprising a second electromagnetic energy absorption shock absorbing device, the second electromagnetic energy absorption shock absorbing device comprises:

[0022] A third base, the third base is a regular polygon;

[0023] A plurality of second pipe assemblies, the second pipe assemblies are straight, and the plurality of second pipe assemblies are installed on each straight side of the third base; the second pipe assemblies have second coils, and the second coils are arranged around the second pipe assemblies;

[0024] A second magnet assembly, the second magnet assembly is straight and is configured to be freely slidable in the pipe direction in the second pipe assemblies.

[0025] In an embodiment, the third base is a square, and is spliced by four right-angle bases; each right-angle base is provided with an ear plate with a bolt hole at the right angle, and the ear plate is provided with a second bolt for fixing the third base on a corresponding structure.

[0026] In an embodiment, the second pipe assembly comprises a second inner pipe and a second coil, and the second coil is arranged around the second inner pipe; both ends of the second inner pipe are provided with springs.

[0027] In an embodiment, the second magnet assembly comprises a second magnet, both ends of the second magnet are provided with a second hoop, and the bottom and both sides of the second hoop are provided with second rolling assemblies; the bottom and both sides of the inner wall of the second inner pipe are provided with track grooves, the track grooves are arranged along the axial direction of the second inner pipe, and the track grooves are in sliding fit with the corresponding second rolling assemblies.

[0028] The above description is only a summary of the technical solutions of the present application, in order to more clearly understand the technical means of the present application, the specific embodiments of the present application can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings in the present application are used to show the preferred embodiments, facilitate the understanding of various other advantages and benefits by those skilled in the art, and cannot be considered as limiting the present application. Moreover, in all the drawings, the same reference numerals represent the same parts.

[0030] Figure 1 Overall schematic diagram of energy-harvesting shock absorber in an embodiment of the present application Figure 1 .

[0031] Figure 2 Cross-sectional schematic diagram of energy-harvesting shock absorber in an embodiment of the present application

[0032] Figure 3 Schematic diagram of first base in an embodiment of the present application

[0033] Figure 4 Cross-sectional schematic diagram of first conduit assembly in an embodiment of the present application

[0034] Figure 5 Schematic diagram of first magnet assembly in an embodiment of the present application

[0035] Figure 6 Schematic diagram of rolling assembly in an embodiment of the present application

[0036] Figure 7 Schematic diagram of second base in an embodiment of the present application

[0037] Figure 8 Schematic diagram of piezoelectric energy harvester in an embodiment of the present application

[0038] Figure 9 Overall schematic diagram of energy-harvesting shock absorber in an embodiment of the present application Figure 2 .

[0039] Figure 10 Cross-sectional schematic diagram of energy-harvesting shock absorber in an embodiment of the present application

[0040] Figure 11 Schematic diagram of third base in an embodiment of the present application

[0041] Figure 12 Cross-sectional schematic diagram of second conduit assembly in an embodiment of the present application

[0042] Figure 13 Schematic diagram of second magnet assembly in an embodiment of the present application

[0043] Reference numerals: 100 - first electromagnetic energy-absorbing shock-absorbing device; 110 - first base; 111 - first bolt; 120 - first conduit assembly; 121 - first inner conduit; 122 - first coil; 123 - first outer conduit; 130 - first magnet assembly; 131 - first clamp; 132 - first magnet; 140 - first rolling assembly;

[0044] 200-piezoelectric energy-absorbing damping device; 210-second base; 211-third bolt; 220-protection shell; 230-piezoelectric energy collector; 231-energy collection beam; 232-third magnet; 233-piezoelectric sheet;

[0045] 300-second electromagnetic energy-absorbing damping device; 310-third base; 311-spring; 312-second bolt; 320-second pipe assembly; 321-second coil; 322-second inner pipe; 323-rail groove; 330-second magnet assembly; 331-second magnet; 332-second hoop; 333-second rolling assembly. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0047] In this document, reference to“an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are they necessarily mutually exclusive of other embodiments. It is explicitly contemplated that embodiments described herein can be combined with other embodiments in combinations other than the ones explicitly presented if such embodiments result in equivalent and / or equivalent- effective devices and / or methods.

[0048] In the description of the embodiments of the present application, the technical terms“first”,“second”, and the like are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of“a plurality of” is two or more (including two), unless otherwise explicitly specified.

[0049] In the description of the embodiments of the present application, the technical terms“center”,“longitudinal”,“transverse”,“length”,“width”,“thickness”,“upper”,“lower”,“front”,“rear”,“left”,“right”,“vertical”,“horizontal”,“top”,“bottom”,“inner”,“outer”,“clockwise”,“counterclockwise”,“axial”,“radial”,“circumferential”, and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0050] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0051] Referring to Figures 1-8 As shown in the first aspect of the present application, the first electromagnetic energy-absorbing damper device 100 is provided. The first electromagnetic energy-absorbing damper device 100 includes a circular first base 110, a circular first pipe assembly 120, and a circular arc first magnet assembly 130. The first pipe assembly 120 is mounted on the first base 110 and arranged with the same center. The first pipe assembly 120 has a first coil 122 arranged around the first pipe assembly 120. The first magnet assembly 130 is located inside the first pipe assembly 120 and can freely slide in the pipe direction inside the first pipe assembly 120. In use, the energy collection damper is first installed on the structure. The vibration from the structure will drive the first magnet assembly 130 to rotate in the circular first pipe assembly 120. The rotation of the first magnet assembly 130 in the first pipe assembly 120 can absorb the vibration energy from multiple directions, thereby achieving the function of vibration reduction. When the first magnet assembly 130 rotates in the first pipe assembly 120 with the first coil 122, electromagnetic induction is generated, thereby converting kinetic energy into electrical energy, achieving energy collection while eliminating multi-directional vibration.

[0052] Specifically Figures 1-3 In the embodiment shown, the edges of the outer side of the first base 110 are uniformly provided with a plurality of bolt holes, and the bolt holes are provided with first bolts 111. The first base 110 can be fixed on the corresponding structure by the first bolts 111.

[0053] Referring to Figure 4 In some embodiments, the first pipe assembly 120 includes a first inner pipe 121, a first coil 122, and a first outer pipe 123. The first outer pipe 123 is sleeved outside the first inner pipe 121, and the first coil 122 is located between the first inner pipe 121 and the first outer pipe 123. The first coil 122 is arranged around the first inner pipe 121, and the first coil 122 is wrapped by the first inner pipe 121 and the first outer pipe 123, thereby playing a protective role for the first coil 122.

[0054] Referring to Figure 5As shown in the drawings, in some embodiments, the first magnet assembly 130 includes a first magnet 132 in the shape of a circular arc, both ends of the first magnet 132 are provided with a first hoop 131, the bottom and both sides of the first hoop 131 are provided with a first rolling assembly 140, and the first rolling assembly 140 is in sliding fit with the inner wall of the first pipeline assembly 120. By setting the first rolling assembly 140 in sliding fit with the first pipeline assembly 120, the smooth movement of the first magnet assembly 130 in the first pipeline assembly 120 can be ensured.

[0055] Specifically, referring to Figure 6 , the first rolling assembly 140 can be a bearing or other component that ensures smooth sliding.

[0056] In further embodiments, the bottom and both sides of the inner wall of the first pipeline assembly 120 are provided with a track groove, the track groove is arranged along the axial direction of the first pipeline assembly 120, and the track groove is in sliding fit with the corresponding first rolling assembly 140. By setting the track groove in sliding fit with the first rolling assembly 140, the first rolling assembly 140 is limited in the track groove, which can prevent the first magnet assembly 130 from sending axial rotation, and further prevent the first magnet assembly 130 from being stuck with the first pipeline assembly 120.

[0057] Please refer to Figure 5 As shown in the drawings, in some embodiments, the energy collection shock absorber can further include a piezoelectric energy absorption damping device 200, which is in the shape of a circular ring and is nested inside the first electromagnetic energy absorption damping device 100. The piezoelectric energy absorption damping device 200 includes a second base 210 in the shape of a circular ring, a protective shell 220 in the shape of a circular ring, and a piezoelectric energy collector 230. The protective shell 220 is installed on the second base 210 and forms a closed annular cavity with the second base 210; the piezoelectric energy collector 230 is located in the annular cavity. Specifically, the piezoelectric energy collector 230 includes two arc-shaped piezoelectric sheets 233, the first ends of the two piezoelectric sheets 233 are connected by an energy collection beam 231; the second end of each piezoelectric sheet 233 is provided with a third magnet 232. In use, the piezoelectric energy absorption damping device 200 is installed on a structure and closely attached to the inner side of the electromagnetic energy absorption damping device 100, and when the first magnet assembly 130 rotates in the first pipeline assembly 120, it will drive the third magnet 232 (same sex attraction or opposite sex repulsion), thereby causing the piezoelectric sheet 233 to deform and generate electricity.

[0058] Specific to Figure 2 , 3 As shown in the drawings, the inner edges of the second base 210 are uniformly provided with a plurality of bolt holes, each of which is equipped with a third bolt 211, and the second base 210 can be fixed to the corresponding structure by the third bolt 211.

[0059] In further embodiments, the piezoelectric energy harvester 230 is multiple, and the multiple piezoelectric energy harvesters 230 are arranged in a ring array within the ring cavity. By designing multiple piezoelectric energy harvesters 230, the efficiency of piezoelectric energy harvesting can be improved.

[0060] Referring to Figures 9-13 The second aspect of the present application also provides an energy-harvesting shock absorber, mainly comprising a second electromagnetic energy-absorbing shock absorbing device 300. The second electromagnetic energy-absorbing shock absorbing device 300 comprises a third base 310 in the shape of a regular polygon, a plurality of second pipe assemblies 320, and a plurality of second magnet assemblies 330. The second pipe assembly 320 is straight, and the plurality of second pipe assemblies 320 are respectively installed on each straight side of the third base 310; the second pipe assembly 320 has a second coil 321, and the second coil 321 is arranged around the second pipe assembly 320. The second magnet assembly 330 is straight and is located in each second pipe assembly 320 and can freely slide in the pipe direction in the second pipe assembly 320. In use, the energy-harvesting shock absorber is first installed on a structure, and vibrations from the structure will drive at least one second magnet assembly 330 to move in the corresponding second pipe assembly 320. Due to the design of the energy-harvesting shock absorber in the shape of a square ring, the movement of the plurality of second magnet assemblies 330 in the plurality of second pipe assemblies 320 can absorb vibration energy from multiple directions, thereby achieving the function of shock absorption; and when the second magnet assembly 330 moves in the second pipe assembly 320 with the second coil 321, electromagnetic induction will be generated, thereby converting kinetic energy into electrical energy, achieving the simultaneous elimination of multi-directional vibration and energy collection.

[0061] Specifically Figures 9-11 In the embodiment shown, the third base 310 is in the shape of a square and is spliced by four right-angled bases; each right-angled base is provided with an ear plate with a bolt hole at the right angle, and the ear plate is provided with a second bolt 312, and the third base 310 can be fixed on the corresponding structure by the second bolt 312.

[0062] Referring to Figure 11 and Figure 12 In some embodiments, the second pipe assembly 320 comprises a second inner pipe 322 and a second coil 321, and the second coil 321 is arranged around the second inner pipe 322. The two ends of the second inner pipe 322 are provided with springs 311. When the second magnet assembly 330 slides in the second pipe assembly 320, the springs 311 will bounce the second magnet assembly 330 back to avoid collision and protect the energy-harvesting shock absorber.

[0063] Referring to Figure 12 and Figure 13As shown, in some embodiments, the second magnet assembly 330 comprises a second magnet 331, two ends of the second magnet 331 are provided with a second hoop 332, the bottom and the left and right sides of the second hoop 332 are provided with a second rolling assembly 333; the bottom and the left and right sides of the inner wall of the second inner pipeline 322 are provided with a track groove 323, the track groove 323 is arranged along the axis of the second inner pipeline 322, and the track groove 323 is in sliding fit with the corresponding second rolling assembly 333. Through the limiting effect of the track groove 323 on the second rolling assembly 333, the self-rotation of the second magnet assembly 330 in the second inner pipeline 322 can be prevented, and the capacity conversion efficiency is improved.

[0064] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should be covered in the scope of the claims and the description of the present application. In particular, the technical features mentioned in each embodiment can be combined in any way as long as there is no contradiction and conflict. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An energy harvesting vibration damper, characterized in that, It mainly includes the first electromagnetic energy absorption and vibration damping device. (100), the first electromagnetic energy absorption and vibration damping device (100) includes: The first base (110) is circular; A first pipe assembly (120) is annular and mounted on a first base (110); the first pipe assembly (120) has a first coil (122) arranged around the first pipe assembly (120); The first magnet assembly (130) is arc-shaped and configured to slide freely within the first pipe assembly (120) along the pipe direction; The energy harvesting vibration damper also includes a piezoelectric energy absorption vibration damping device (200), which is generally annular and nested inside the first electromagnetic energy absorption vibration damping device (100). The piezoelectric energy absorption vibration damping device (200) includes a second base (210), a protective shell (220), and a piezoelectric energy harvester (230). The second base (210) is annular. The protective shell (220) is annular and is installed on the second base (210), forming a closed annular cavity with the second base (210). The piezoelectric energy harvester (230) is located in the annular cavity. The piezoelectric energy harvester (230) includes two arc-shaped piezoelectric plates (233). The first ends of the two piezoelectric plates (233) are connected by an energy harvesting beam (231) to form an open annular shape. The second end of each piezoelectric plate (233) is equipped with a third magnet (232).

2. The energy harvesting vibration damper according to claim 1, characterized in that, The first pipe assembly (120) includes a first inner pipe (121), a first coil (122) and a first outer pipe (123). The first outer pipe (123) is fitted around the first inner pipe (121). The first coil (122) is arranged around the first inner pipe (121) and is located between the first inner pipe (121) and the first outer pipe (123).

3. The energy harvesting vibration damper according to claim 1, characterized in that, The first magnet assembly (130) includes a first magnet (132), and the first magnet (132) is provided with a first clamp (131) at both ends. The first clamp (131) is provided with a first rolling assembly (140) at the bottom and on the left and right sides. The first rolling assembly (140) slides in cooperation with the inner wall of the first pipe assembly (120).

4. The energy harvesting vibration damper according to claim 3, characterized in that, The bottom and left and right sides of the inner wall of the first pipe assembly (120) are provided with track grooves. The track grooves are arranged along the axial direction of the first pipe assembly (120) and slide with the corresponding first rolling assembly (140).

5. The energy harvesting vibration damper according to claim 1, characterized in that, There are multiple piezoelectric energy harvesters (230), and the multiple piezoelectric energy harvesters (230) are arranged in a ring array in the ring cavity.

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