Human body gait energy collecting device

Abstract

The invention relates to the technical field of mechanical energy collection, and discloses a human gait energy collection device which comprises a base. The polar plate is rotationally connected with the base, and when a human body moves, the polar plate swings relative to the base; the electromagnet assembly comprises a coil and is arranged on the base, a magnet ring set is arranged on the outer side of the coil in a surrounding mode, the magnet ring set is arranged on the polar plate, and the magnet ring set swings relative to the coil so that the coil can cut magnetic induction lines. The technical effects that the energy conversion rate of the human gait energy collector is improved, and the human gait energy collector can adapt to the low-frequency characteristic of human motion are achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical energy collection, and in particular relates to a human gait energy collection device. Background Art

[0002] Human gait energy harvester refers to a device that can convert mechanical energy generated when a person walks into electrical energy. Most of the energy generated when a person walks will be converted into heat and dissipated. In order to explore an efficient conversion mechanism, the research on human gait harvester aims to convert the swinging energy during human movement into electrical energy, achieving the goal of "increasing revenue and reducing expenditure". Human gait energy harvester captures and collects biomechanical energy from human movement when the human arm or leg swings, and then converts the collected biomechanical energy into electrical energy for application in wearable devices such as smart watches, bracelets or mobile phones.

[0003] At present, the energy collection methods of human gait energy harvesters mainly include electromagnetic, piezoelectric or triboelectric, among which the electromagnetic energy harvester has the advantages of small internal resistance, easy manufacturing and high reliability compared with energy harvesters of other collection methods.

[0004] However, in the related art, the energy conversion rate of the electromagnetic energy harvester is low, especially since human body movement is random and has low-frequency characteristics, resulting in less energy collected by the electromagnetic energy harvester. Summary of the invention

[0005] In order to solve the shortcomings of the prior art, the present invention provides a human gait energy collection device, in which a magnet ring group is arranged on the outside of a coil. The magnetic field strength of the electromagnet assembly is large. The magnet ring group swings on the outside of the coil, and the coil cuts the magnetic lines of force, which is beneficial to improving the energy conversion rate of the human gait energy collector and can adapt to the low-frequency characteristics of human movement.

[0006] The technical effects to be achieved by the present invention are achieved through the following technical aspects:

[0007] The present invention provides a human gait energy collection device, comprising a base; a pole plate, which is rotatably connected to the base, and when the human body moves, the pole plate swings relative to the base; and an electromagnet assembly, comprising a coil, which is arranged on the base, and a magnet ring group is arranged around the outer side of the coil, and the magnet ring group is arranged on the pole plate, and the magnet ring group swings relative to the coil so that the coil cuts magnetic flux lines.

[0008] In some implementations, the magnet ring assembly includes a fixed plate, a plurality of magnets are disposed on the fixed plate, and the plurality of magnets are disposed in a ring shape around an axis of the coil.

[0009] In some implementations, the magnets are distributed on the fixed plate in a Halbach array.

[0010] In some implementations, a plurality of magnet ring groups are provided, and the plurality of magnet ring groups are spaced apart and distributed along the axis direction of the coil.

[0011] In some implementations, a support tube seat is disposed on the base, the coil is wound on the support tube seat, and the support tube seat is detachably connected to the base.

[0012] In some implementations, a bearing is disposed on the base, a bearing hole for the bearing to pass through is opened on the pole plate, and the pole plate is rotatably connected to the base at the bearing.

[0013] In some implementations, a limiter for limiting the swing range of the pole plate is provided between the base and the pole plate, and the coil reciprocates in the magnetic field of the magnet ring group.

[0014] In some implementations, the limiter is an elastic limiter, and the elastic limiter buffers the collision with the electrode plate.

[0015] In some implementations, a hollow structure is provided on the electrode plate.

[0016] In some implementations, the base is provided with a strap hole for passing a strap.

[0017] In summary, the present invention has at least the following benefits:

[0018] The human gait energy collection device provided by the present invention is fixed on the human arm or leg. When the human body is walking or performing other exercises, the pole plate is driven to swing relative to the base. When the pole plate moves, it can drive the magnet ring group to swing back and forth relative to the inner coil. The coil cuts the magnetic flux lines formed by the magnet ring group on the inner side of the magnet ring group, and current is generated in the coil. The human gait energy captures and collects biomechanical energy, and converts the biomechanical energy into electrical energy. At the same time, the magnet ring group is arranged on the outside of the coil, which is conducive to ensuring the magnetic field strength of the electromagnet assembly, thereby improving the energy conversion rate of the human gait energy collector. The human gait energy collector can be used in low-frequency exercises to increase the energy generated. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a schematic structural diagram of a human gait energy harvesting device according to a specific embodiment of the present invention.

[0020] Figure 2 It is a schematic diagram of the structure of the electrode plate of a specific embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the structure in which the magnets of a specific embodiment of the present invention are distributed in a Halbach array.

[0022] Figure 4 It is a schematic structural diagram of a base according to a specific embodiment of the present invention.

[0023] Figure 5 It is a schematic structural diagram of a coil and a supporting tube holder according to a specific embodiment of the present invention.

[0024] Markings in the figure:

[0025] 1. Base; 11. Bearing; 12. Limiting piece; 121. Baffle; 13. Strap hole; 131. Side protrusion; 14. Assembly groove; 2. Pole plate; 21. Bearing hole; 22. Hollow structure; 221. Hole; 23. Connecting arm; 3. Electromagnet assembly; 31. Coil; 311. Support tube seat; 32. Magnet ring assembly; 321. Fixing plate; 322. Magnet. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all of them.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Embodiment 1:

[0029] Please see attached Figure 1 The human gait energy harvesting device of the present invention comprises a base 1, on which a pole plate 2 is rotatably arranged, and an electromagnet assembly 3 is arranged between the pole plate 2 and the base 1. The swinging energy generated by human movement is converted into electrical energy through the electromagnet assembly 3. The human gait energy harvesting device of the present invention can be used as a power source for wearable devices, medical equipment and other devices, and can provide continuous and stable power support.

[0030] Among them, the electrode plate 2 is stacked on the base 1 and rotatably connected to the base 1. When in use, the base 1 is fixed to a place with a large swing amplitude such as the outer side of the human body's calf or forearm. The human body can drive the electrode plate 2 to swing relative to the base 1 during walking and other movements.

[0031] An electromagnet assembly 3 is arranged between the base 1 and the pole plate 2. The electromagnet assembly 3 includes a coil 31. Specifically, the coil 31 can be formed by spirally winding a wire covered with an insulating layer. The coil 31 is arranged on the base 1. A magnet ring group 32 is arranged around the outer side of the coil 31. The magnet ring group 32 is arranged on the pole plate 2. When the human body drives the pole plate 2 to swing, the pole plate 2 drives the magnet ring group 32 to swing relative to the inner coil 31. The coil 31 cuts the magnetic flux lines formed by the magnet ring group 32, and alternating current is generated in the coil 31.

[0032] The pole plate 2 can collect the kinetic energy of the human body when it swings with the human body walking, and then the pole plate 2 drives the magnet ring group 32 to swing relative to the inner coil 31. Based on the principle of electromagnetic induction, the electromagnet assembly 3 converts the swinging energy of the human body walking into electrical energy, and the human body gait energy is recovered and utilized. It is convenient to use and has a simple structure. The electromagnet assembly 3 is surrounded by the magnet ring group 32 on the outside of the coil 31, which can enhance the magnetic field strength at the coil 31, and then when the magnet ring group 32 swings relative to the coil 31, the energy conversion rate of the electromagnet assembly 3 is improved, and the energy collected by the human body gait energy collection device is increased. The human body gait energy collection device of the present invention is more suitable for low-frequency human body movements.

[0033] Embodiment 2:

[0034] The difference between this embodiment and embodiment 1 is that this embodiment further optimizes the structure of the electromagnet assembly 3 of the present invention, see Figure 2 to Figure 4 .

[0035] See also Figure 1 and Figure 2 In this embodiment, a connecting arm 23 is provided on the pole plate 2. As shown in some specific embodiments, the connecting arm 23 is an arc-shaped arm, and the inner side of the connecting arm 23 can form a space for accommodating the coil 31. Specifically, a plurality of connecting arms 23 can be provided, and the plurality of connecting arms 23 are spaced apart along the swinging direction of the pole plate 2.

[0036] In a preferred embodiment, the magnet ring group 32 is arranged on the connecting arm 23, and the magnet ring group 32 includes a fixing plate 321. Specifically, the fixing plate 321 can be a C-shaped plate and the axial direction is consistent with the axial direction of the coil 31, so that the fixing plate 321 can be arranged around the outside of the coil 31. It can be understood that this is not the only limitation on the shape of the fixing plate 321, and technicians in the relevant field can adjust it according to the setting method of the coil 31. In some specific embodiments shown, the fixing plate 321 is connected to the connecting arm 23, wherein the fixing plate 321 can be bonded to the connecting arm 23 by glue, or connected by bolts, etc., which is conducive to the disassembly and replacement of the magnet ring group 32.

[0037] A plurality of magnets 322 are arranged on the fixed plate 321. Specifically, the number of magnets 322 is preferably, but not limited to, a multiple of 4, such as 12, 16, 28, etc., which can enhance the magnetic field strength of the magnet ring group 32. The plurality of magnets 322 are arranged in a ring shape around the axis of the coil 31, that is, the plurality of magnets 322 are arranged around the outside of the coil 31. Specifically, the magnets 322 are preferably, but not limited to, permanent magnets such as neodymium iron boron magnets 322, which is conducive to enhancing the magnetic field strength of the magnet ring group 32. In some specific embodiments shown, the magnets 322 are fan-shaped blocks, and the plurality of magnets 322 can fit each other and be arranged in a ring shape. Specifically, the magnets 322 can be bonded to the fixed plate 321 by glue, and the magnets 322 are fixed.

[0038] See also Figure 3 In a preferred embodiment, the magnetic poles of the multiple magnets 322 are distributed in a Halbach array. The multiple magnets 322 distributed in a Halbach array are conducive to concentrating the magnetic field lines at the swing track of the coil 31, and the magnetic field strength of the outer ring of the magnet ring group 32 is relatively small, which can further improve the conversion rate of the human body's swing energy. It can be understood that this is not the only limitation on the specific distribution of the magnetic poles of the multiple magnets 322. In other specific embodiments, the magnetic poles of the multiple magnets 322 can be arranged in a distribution manner in which the S pole is close to the coil 31 and the N pole is far away from the coil 31, or the magnets 322 with the S pole close to the coil 31 and the S pole far away from the coil 31 are alternately arranged.

[0039] In a preferred embodiment, a plurality of magnet ring groups 32 may be provided, such as 9 magnet ring groups 32 in this embodiment, and a plurality of magnet ring groups 32 are arranged at intervals along the swing direction of the pole plate 2. At this time, the connecting arm 23 plays a role in supporting the magnet ring group 32 and the magnet ring groups 32 adjacent to each other at intervals. The arrangement of a plurality of magnet ring groups 32 is conducive to improving the magnetic field strength of the electromagnet assembly 3. The spatial layout of the plurality of magnet ring groups 32 is reasonable, and can reduce the obstruction to human body movement while ensuring the energy conversion rate of the electromagnet 322.

[0040] See also Figure 4 and Figure 5In a preferred embodiment, an assembly groove 14 is provided on the edge of the base 1, and a notch is provided on one side of the assembly groove 14. A support tube seat 311 is provided at the assembly groove 14 of the base 1, and the support tube seat 311 is located in the space surrounded by the connecting arm 23. In some specific embodiments shown, the support tube seat 311 is detachably connected to the base 1 at the assembly groove 14. Specifically, a threaded hole is provided on the inner wall of the assembly groove 14 of the base 1, and the base 1 and the support tube seat 311 are assembled by bolts. The notch can facilitate the disassembly and assembly of the support tube seat 311. The coil 31 is wound on the support tube seat 311. Specifically, the support tube seat 311 includes a limiting portion, and the limiting portion is located at both ends of the axial direction of the coil 31 to limit the movement of the coil 31.

[0041] In a preferred embodiment, a plurality of coils 31 may be provided, and a support tube seat 311 is provided corresponding to the coil 31. The plurality of coils 31 are distributed at intervals along the swinging trajectory of the pole plate 2. The plurality of coils 31 successively cut the magnetic flux lines formed by the magnet ring group 32, which is beneficial to increase the generation and storage of electrical energy.

[0042] The electromagnet assembly 3 can increase the magnetic field strength through the reasonable layout of the magnet ring group 32 and the coil 31, thereby capturing and utilizing the biomechanical energy of the human body during movement to a greater extent, thereby achieving the purpose of energy recovery.

[0043] Embodiment 3:

[0044] The difference between this embodiment and the above embodiment is that this embodiment further optimizes the structure of the electromagnet assembly 3 of the present invention, see Figure 2 and Figure 4 .

[0045] The base 1 of this embodiment is provided with a bearing 11. Specifically, the bearing 11 is vertically arranged relative to the base 1. The bearing 11 can be a deep groove ball bearing 11 to ensure high rotation accuracy. A bearing 11 hole is opened on the pole plate 2. The bearing 11 hole is penetrated in the bearing 11 hole. The pole plate 2 is rotatably connected to the base 1 at the bearing 11. The smooth rotation of the pole plate 2 can reduce the loss of human body swing energy.

[0046] In a preferred embodiment, the base 1 is a fan-shaped plate, wherein the bearing 11 is arranged at the inner arc of the base 1, the support tube seat 311 and the coil 31 are both arranged at the outer arc of the base 1, and the axis of the coil 31 is parallel to the outer arc of the base 1.

[0047] As shown in some specific embodiments, the pole plate 2 is a fan-shaped plate, the outer arc line of the pole plate 2 is parallel to the outer arc line of the base 1, the connecting arm 23 and the magnet ring group 32 are both arranged at the outer arc line of the pole plate 2, and specifically, the movement trajectory of the magnet ring group 32 is arc-shaped, and the magnet ring group 32 swings along the arc trajectory, which can improve the movement efficiency and stability of the magnet ring group 32. At the same time, the base 1 and the pole plate 2 are both fan-shaped plates, and the magnet ring group 32 can achieve a larger range of motion in a limited space, thereby improving the functionality and flexibility of the human gait energy collection device.

[0048] In a preferred embodiment, a baffle 121 is provided on the base 1, and the baffle 121 is specifically an L-shaped plate. The baffle 121 is provided at the inner arc line of the base 1, and a stopper 12 for limiting the swing range of the pole plate 2 is provided on one side of the baffle 121 close to the bearing 11, and the coil 31 reciprocates in the magnetic field of the magnet ring group 32. The setting of the stopper 12 can limit the rotation angle of the pole plate 2 around the bearing 11, reduce the energy loss caused by the excessive rotation angle of the pole plate 2, and enable the coil 31 to effectively cut the magnetic flux lines.

[0049] In some specific embodiments shown, the limiter 12 is an elastic limiter. Specifically, the elastic limiter is preferably, but not limited to, a spring or an elastic pad. The baffle 121 may be provided with a protrusion, and the elastic limiter is sleeved on the outside of the circular protrusion. In other specific embodiments, the baffle 121 may also be provided with a groove, and the elastic limiter is inserted into the groove. When the pole plate 2 rotates around the bearing 11 at an angle that is too large, the pole plate 2 collides with the elastic limiter, and the elastic limiter can limit the pole plate 2 from continuing to rotate. At the same time, the elastic force can buffer the collision of the pole plate 2, thereby reducing energy loss, which is conducive to the collection of gait energy.

[0050] In a preferred embodiment, a side protrusion 131 is provided on the base 1, and the side protrusion 131 is provided on the side of the base 1. A strap hole 13 for passing a strap is opened on the side protrusion 131. The strap passes through the strap hole 13 and is tied to the arm or leg of the human body. The base 1 is fixed and easy to use.

[0051] In a preferred embodiment, holes 221 are provided on both the electrode plate 2 and the base 1. Specifically, the holes 221 can be circular holes 221 or irregular holes 221. The arrangement of the holes allows a hollow structure 22 to be formed on the electrode plate 2. The design of the hollow structure 22 can reduce the weight of the electrode plate 2, making the human gait energy collection device more convenient and flexible to use.

[0052] When in use, the base 1 is tied to a place where the human body moves with a large amplitude, such as the outer side of the human leg or forearm, by means of a strap, and the pole plate 2 is kept naturally perpendicular to the bottom surface. As the limbs of the human body swing when walking, the pole plate 2 swings back and forth around the bearing 11. At this time, the pole plate 2 drives the magnet ring group 32 to swing along an arc track, and the coil 31 cuts the magnetic flux lines on the inner side of the magnet ring group 32, and an alternating current is formed in the coil 31. During the swinging process of the pole plate 2, the elastic limiter limits the swinging range of the pole plate 2 and buffers the collision with the pole plate 2.

[0053] In some specific embodiments, the coil 31 may be electrically connected to a power storage module, and the electric shock module can convert AC power into DC power and store the electric energy, wherein the electric shock module may include components such as chips and capacitors. It is understandable that the way in which the power storage module stores electric energy is known to those skilled in the art and is achievable, and is not described in detail in this embodiment. By converting the human body swing energy into electric energy through the electromagnet assembly 3, the human body gait energy collection device can realize continuous and stable power supply for wearable devices.

[0054] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0056] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0057] In the present invention, unless otherwise clearly specified and limited, a first feature being above or below a second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, a first feature being above, above, and above a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being below, below, and below a second feature includes the first feature being directly below and obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0058] Although the present invention is described in conjunction with the above specific embodiments, it is obvious that those skilled in the art can make many substitutions, modifications and changes according to the above content. Therefore, all such substitutions, improvements and changes are included in the spirit and scope of the appended claims.

Claims

1. A human gait energy collection device, characterized in that: include Base (1); The electrode plate (2) is rotatably connected to the base (1), and when the human body moves, the electrode plate (2) swings relative to the base (1); and The electromagnet assembly (3) comprises a coil (31) arranged on the base (1); a magnet ring group (32) is arranged around the outer side of the coil (31); the magnet ring group (32) is arranged on the pole plate (2); the magnet ring group (32) swings relative to the coil (31) so that the coil (31) cuts the magnetic flux lines.

2. The human gait energy collection device according to claim 1, characterized in that: The magnet ring group (32) comprises a fixed plate (321), on which a plurality of magnets (322) are arranged, and the plurality of magnets (322) are arranged in a ring shape around the axis of the coil (31).

3. The human gait energy collection device according to claim 2, characterized in that: The magnets (322) are distributed on the fixing plate (321) in a Halbach array.

4. The human gait energy collection device according to claim 2 or 3, characterized in that: A plurality of magnet ring groups (32) are provided, and the plurality of magnet ring groups (32) are distributed at intervals along the axial direction of the coil (31).

5. The human gait energy collection device according to claim 1, characterized in that: A support tube seat (311) is provided on the base (1), the coil (31) is wound on the support tube seat (311), and the support tube seat (311) is detachably connected to the base (1).

6. The human gait energy collection device according to claim 1, characterized in that: A bearing (11) is arranged on the base (1), a bearing (11) hole for the bearing (11) to pass through is opened on the pole plate (2), and the pole plate (2) is rotatably connected to the base (1) at the bearing (11).

7. The human gait energy collection device according to claim 1, characterized in that: A limiter (12) for limiting the swing range of the pole plate (2) is provided between the base (1) and the pole plate (2), and the coil (31) reciprocates in the magnetic field of the magnet ring group (32).

8. The human gait energy collection device according to claim 7, characterized in that: The limiting member (12) is an elastic limiting member, and the elastic limiting member buffers the collision between the limiting member and the electrode plate (2).

9. The human gait energy collection device according to claim 1, characterized in that: A hollow structure (22) is provided on the electrode plate (2).

10. The human gait energy collection device according to claim 1, characterized in that: The base (1) is provided with a strap hole (13) for passing a strap.

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