Mechanical core energy storage device

Abstract

The present invention provides a mechanical core energy storage device, which includes an energy storage mechanism, an input mechanism and an output mechanism, wherein the energy storage mechanism includes a first winding bobbin group, a second winding bobbin group and an elastic line capable of elastic stretching and contraction, wherein the two ends of the elastic line are respectively connected to the first winding bobbin group and the second winding bobbin group, and are wound on the first winding bobbin group and / or the second winding bobbin group; the input mechanism includes a first driving device, which is transmission-connected to the first winding bobbin group and is used to convert electrical energy into rotational energy to drive the first winding bobbin group to rotate; the output mechanism includes a power generation device and a clutch mechanism, wherein the power generation device is connected to the first winding bobbin group through the clutch mechanism, and the clutch mechanism is used to transmission-connect the power generation device and the first winding bobbin group, or to cut off the connection between the power generation device and the first winding bobbin group. The mechanical core energy storage device has a simple structure, a high energy storage density, and stable energy output.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of energy storage devices, and in particular to a mechanical core energy storage device. Background Art

[0002] As an energy storage device, batteries are widely used in various industries and scenarios, such as mobile electronic devices, vehicles, ships, aircraft, factories, office buildings, etc. In the new energy era, batteries will be indispensable. Batteries with excellent performance, low cost, and environmentally friendly production and scrapping will be the direction of technological development. The current batteries are mainly chemical battery cells, such as lithium batteries, nickel-cadmium batteries, zinc-nickel batteries and other ion batteries, as well as hydrogen energy batteries. However, chemical battery cells are expensive, have high safety risks during use, and are highly polluting after damage or scrapping. Their use is limited in some application scenarios with high requirements for chemicals and safety. Summary of the invention

[0003] In view of the above problems existing in the prior art, an embodiment of the present invention provides a mechanical core energy storage device, which has a simple structure, a high energy storage density, and a stable energy output.

[0004] To solve the above problems, the technical solution provided by the embodiment of the present invention is:

[0005] A mechanical core energy storage device, comprising:

[0006] An energy storage mechanism, comprising a first winding spool group, a second winding spool group and an elastic line capable of elastic stretching and contraction, wherein two ends of the elastic line are respectively connected to the first winding spool group and the second winding spool group and are wound on the first winding spool group and / or the second winding spool group;

[0007] An input mechanism, comprising a first drive device, the first drive device being drivingly connected to the first winding bobbin set and configured to convert electrical energy into rotational energy to drive the first winding bobbin set to rotate;

[0008] an output mechanism, comprising a power generation device and a clutch mechanism, wherein the power generation device is connected to the first winding bobbin group through the clutch mechanism, and the clutch mechanism is used to drive and connect the power generation device and the first winding bobbin group, or to cut off the connection between the power generation device and the first winding bobbin group;

[0009] During the energy storage process, the first driving device drives the first winding spool group to wind the elastic wire, and the second winding spool group releases the elastic wire, and the winding speed of the first winding spool group is greater than the unwinding speed of the second winding spool group, so as to tension the elastic wire and convert the rotational energy into elastic potential energy for storage;

[0010] During the energy release process, the first winding spool group is transmission-connected to the power generation device via the clutch mechanism, the elastic wire contracts and drives the first winding spool group to rotate, so as to drive the power generation device to generate electricity and output electrical energy, and the second winding spool group winds up the elastic wire in a relaxed state.

[0011] In some embodiments, the first winding spool assembly includes a first wire wheel and a locking mechanism, wherein the first wire wheel is used to wind or release the elastic wire in a tensioned state, and the locking mechanism is used to lock the first wire wheel to restrict the first wire wheel from rotating.

[0012] In some embodiments, the second winding spool set comprises:

[0013] a second wire wheel for winding or releasing the elastic wire in a slack state;

[0014] a second driving device, which is drivingly connected to the second wire wheel and is used to drive the second wire wheel to rotate so as to wind up the elastic wire in a relaxed state;

[0015] A limiting mechanism is connected to the second wire wheel, and the limiting mechanism is constructed to allow the second wire wheel to rotate and release the elastic line when the torque generated by the second wire wheel is greater than the first torque, and to limit the rotation of the second wire wheel when the torque generated by the second wire wheel is less than the first torque.

[0016] In some embodiments, the limiting mechanism includes a first gear and an elastic arm, the first gear is drivingly connected to the second wire wheel, and one end of the elastic arm extends into the tooth groove of the first gear;

[0017] The elastic arm is constructed to: deform and disengage from the tooth groove of the first gear when the torque generated by the first gear is greater than the second torque to allow the first gear and the second wire wheel to rotate; and stop the first gear when the torque generated by the first gear is not greater than the second torque to limit the rotation of the second wire wheel.

[0018] In some embodiments, the elastic arm is configured to be rotatable around a rotation center at the other end thereof, and a first stop member and a second stop member are respectively provided on the rotation path of the elastic arm;

[0019] The first stop member is located in a rotation direction of the elastic arm, and is used to limit the rotation angle of the elastic arm in the rotation direction, so as to limit the elastic arm from rotating out of the tooth groove of the first gear when the second wire wheel releases the elastic wire and drives the first gear to rotate;

[0020] The second stop member is located in the other rotation direction of the elastic arm, and is used to limit the rotation angle of the elastic arm in the other rotation direction, so as to allow the elastic arm to rotate out of the tooth groove of the first gear when the second wire wheel winds the elastic wire and drives the first gear to rotate.

[0021] In some embodiments, the output mechanism further includes a power conversion circuit, which is connected to the power generation device and is used to adjust power parameters of the electric energy output by the power generation device.

[0022] In some embodiments, the power conversion circuit is connected to the second driving device to supply power to the second driving device.

[0023] In some embodiments, the clutch mechanism includes a first rotating member, a second rotating member and a moving mechanism, the first rotating member and the second rotating member are coaxially arranged, the first rotating member is transmission-connected to the first winding spool group, the second rotating member is transmission-connected to the power generation device, and first clamping structures that can engage with each other are respectively provided on the opposite end faces of the first rotating member and the second rotating member, and the moving mechanism is used to drive the first rotating member or the second rotating member to move axially so that the first rotating member engages with the second rotating member through the first clamping structure, or the first rotating member and the second rotating member are disconnected.

[0024] In some embodiments, the power generation device includes a first gear set, a flywheel and a generator, the first gear set is connected to the clutch mechanism and the flywheel respectively, the first gear set can be transmission-connected to the first winding bobbin set through the clutch mechanism, and the flywheel is transmission-connected to the generator; or

[0025] The power generation device includes a first gear group, a flywheel, a second gear group and a generator. The first gear group is respectively connected to the clutch mechanism and the flywheel. The first gear group can be transmission-connected to the first winding spool group through the clutch mechanism. The flywheel is transmission-connected to the second gear group, and the second gear group is transmission-connected to the generator.

[0026] In some embodiments, the mechanical core energy storage device includes a plurality of the energy storage mechanisms, and the plurality of energy storage mechanisms are all connected to the first driving device and are all connected to the power generation device through the clutch mechanism to enable synchronous energy storage and energy release; and / or

[0027] The mechanical core energy storage device includes a plurality of energy storage mechanisms, the input mechanism includes a plurality of first drive devices, the output mechanism includes a plurality of clutch mechanisms, the energy storage mechanism, the first drive device and the clutch mechanism correspond one to one, the energy storage mechanism is connected to the corresponding first drive device, and the energy storage mechanism is connected to the power generation device through the corresponding clutch mechanism, so as to be able to synchronously or separately drive the power generation device to generate electricity.

[0028] The mechanical core energy storage device of the embodiment of the present invention can convert electrical energy into rotational energy through an input mechanism, and the energy storage mechanism can convert rotational energy into elastic potential energy of an elastic line for storage. The length of the elastic line that can be wound by the first winding spool group and the second winding spool group is usually longer, and the elastic line usually has a larger stretching ratio, so the energy storage capacity of the energy storage mechanism is larger and has a higher energy storage density. In the energy release process, the second winding spool group gradually winds up the elastic line in a relaxed state and the first winding spool group gradually releases the elastic line in a tensioned state. The elastic line contracts and drives the first winding spool group to rotate, thereby driving the power generation mechanism to generate electricity. Within a certain time range, the power generation device can be driven to generate electricity continuously and stably, and the output power is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of a first embodiment of a mechanical core energy storage device according to an embodiment of the present invention;

[0030] Figure 2 It is a partial structural schematic diagram of the energy storage device;

[0031] Figure 3 is a structural diagram of a restriction mechanism;

[0032] Figure 4 It is a structural schematic diagram of the clutch mechanism;

[0033] Figure 5 is a schematic structural diagram of the second rotating member;

[0034] Figure 6 Schematic diagram of the structure of a second embodiment of the mechanical core energy storage device of the present invention.

[0035] Description of reference numerals:

[0036] 100-energy storage mechanism; 101-first winding spool group; 102-first wire wheel; 103-locking mechanism; 104-first motor; 105-telescopic rod; 106-sensor; 107-pressing plate; 108-second winding spool group; 109-second wire wheel; 110-second driving device; 111-limiting mechanism; 112-first gear; 113-elastic arm; 114-roller; 115-first stop member; 116-second stop member; 117-elastic line; 118-first identification part;

[0037] 200-input mechanism; 201-first driving device; 202-first controller; 203-charging interface;

[0038] 300-output mechanism; 301-generating device; 302-second gear set; 303-flywheel; 304-third gear set; 305-generator; 306-clutch mechanism; 307-first rotating member; 308-second rotating member; 309-moving mechanism; 310-third motor; 311-screw rod; 312-nut; 313-first clamping structure; 314-transformer circuit; 315-second controller; 316-output interface. DETAILED DESCRIPTION

[0039] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0040] See also Figure 1As shown, an embodiment of the present invention provides a mechanical core energy storage device, which includes an energy storage mechanism 100, an input mechanism 200 and an output mechanism 300. The energy storage mechanism 100 includes a first winding bobbin group 101, a second winding bobbin group 108 and an elastic wire 117 that can be elastically stretched and contracted, and the two ends of the elastic wire 117 are respectively connected to the first winding bobbin group 101 and the second winding bobbin group 108, and are wound on the first winding bobbin group 101 and / or the second winding bobbin group 108. The first winding spool group 101 is used to wind or release the elastic line 117 in a tensioned state, and the second winding spool group 108 is used to wind or release the elastic line 117 in a relaxed state. When one of the first winding spool group 101 and the second winding spool group 108 winds the elastic line 117, the other releases the elastic line 117. By configuring the winding speed and the unwinding speed of the first winding spool group 101 and the second winding spool group 108, the purpose of tensioning the elastic line 117 for energy storage or contracting the elastic line 117 for energy release can be achieved. Taking the stretching ratio of the elastic line 117 as N as an example, the winding speed of the first winding spool group 101 during energy storage can be N times the unwinding speed of the second winding spool group 108. Optionally, an elastic line 117 can be arranged between the first winding spool group 101 and the second winding spool group 108, or multiple elastic lines 117 can be arranged in parallel.

[0041] The input mechanism 200 includes a first drive device 201, which is in driving connection with the first winding spool group 101 and is used to convert electrical energy into rotational energy to drive the first winding spool group 101 to rotate. Optionally, the first drive device 201 may include a first motor 104. Optionally, the input mechanism 200 may also include a first controller 202 and a charging interface 203, the first controller 202 is connected to the first motor 104 and the charging interface 203 respectively, the charging interface 203 can be used to connect to the mains power supply through a power cord, the first controller 202 is used to receive electrical energy and control the operation of the first motor 104, and the first controller 202 can also be used to convert electrical parameters of electrical energy, such as voltage, current, DC-AC conversion, etc.

[0042] The output mechanism 300 includes a power generation device 301 and a clutch mechanism 306. The power generation device 301 is connected to the first winding bobbin group 101 through the clutch mechanism 306. The clutch mechanism 306 is used to drive and connect the power generation device 301 and the first winding bobbin group 101, or to cut off the connection between the power generation device 301 and the first winding bobbin group 101. During the energy storage process, the clutch mechanism 306 can cut off the connection between the power generation device 301 and the first wire wheel 102, and store energy for the energy storage mechanism 100 through the input mechanism 200. During the energy release process, the power generation device 301 and the first winding bobbin group 101 can be driven and connected through the clutch mechanism 306, so that the first winding bobbin group 101 can drive the power generation device 301 to operate, convert the elastic potential energy into electrical energy, and supply power to the load.

[0043] During the energy storage process, the first driving device 201 drives the first winding spool group 101 to wind the elastic wire 117, and the second winding spool group 108 releases the elastic wire 117. The winding speed of the first winding spool group 101 is greater than the unwinding speed of the second winding spool group 108, so as to tension the elastic wire 117 and convert the rotational energy into elastic potential energy for storage.

[0044] During the energy release process, the first winding spool group 101 is connected to the power generation device 301 through the clutch mechanism 306, the elastic wire 117 contracts and drives the first winding spool group 101 to rotate, so as to drive the power generation device 301 to generate electricity and output electrical energy, and the second winding spool group 108 winds up the elastic wire 117 in a relaxed state.

[0045] The mechanical core energy storage device of the embodiment of the present invention can convert electrical energy into rotational energy through the input mechanism 200, and the energy storage mechanism 100 can convert the rotational energy into the elastic potential energy of the elastic wire 117 for storage. The length of the elastic wire 117 that can be wound by the first winding spool group 101 and the second winding spool group 108 is usually longer, and the elastic wire 117 usually has a larger stretch ratio, so the energy storage capacity of the energy storage mechanism 100 is larger and has a higher energy storage density. In the energy release process, the second winding spool group 108 gradually winds up the elastic wire 117 in a relaxed state and the first winding spool group 101 gradually releases the elastic wire 117 in a tensioned state. When the elastic wire 117 contracts and drives the first winding spool group 101 to rotate, thereby driving the power generation device 301 to generate electricity, the power generation device 301 can be driven to generate electricity continuously and stably within a certain time range, and the output power is stable.

[0046] Cooperate Figure 2As shown, in some embodiments, the first winding spool group 101 includes a first wire wheel 102 and a locking mechanism 103, wherein the first wire wheel 102 is used to wind the elastic wire 117 in a tensioned state, and the locking mechanism 103 is used to lock the first wire wheel 102 to limit the rotation of the first wire wheel 102. After the energy storage is completed, substantially the entire elastic wire 117 is wound on the first wire wheel 102, and then the first wire wheel 102 can be locked by the locking mechanism 103 to prevent the first wire wheel 102 from releasing elastic potential energy in an uncontrolled manner. Of course, during the energy storage process, if it is impossible to continue to store energy, the first wire wheel 102 can also be locked by the locking mechanism 103 to prevent the elastic potential energy from being released.

[0047] Optionally, a first identification portion 118 may be provided at the end of the elastic wire 117 near the end where the elastic wire 117 is connected to the second winding spool group 108. The locking mechanism 103 may include a first motor 104, a telescopic rod 105 and a sensor 106. The sensor 106 is provided near the second winding spool group 108, and is used to send a signal to the first motor 104 after detecting that the line segment where the first identification portion 118 is located is released from the second winding spool group 108. The telescopic rod 105 is provided at a position near the rim of the first wire wheel 102, and one end of the telescopic rod 105 is facing the rim of the first wire wheel 102. The first motor 104 is transmission-connected to the telescopic rod 105. When the first motor 104 receives the signal, it controls the telescopic rod 105 to extend toward the rim of the first wire wheel 102 and press against the rim of the first wire wheel 102 to lock the first wire wheel 102 and limit the rotation of the first wire wheel 102.

[0048] Optionally, a pressure plate 107 may be provided at the end of the telescopic rod 105 opposite to the first wire wheel 102, and the telescopic rod 105 may be pressed against the rim of the first wire wheel 102 through the pressure plate 107. The shape of the pressure plate 107 may correspond to the shape of the rim of the first wire wheel 102, and the side of the pressure plate 107 connected to the rim of the first wire wheel 102 may also be provided with, for example, friction patterns.

[0049] Optionally, the first identification portion 118 may be an identification line of a different color, and the sensor 106 may be, for example, an image acquisition device, and when the image acquisition device recognizes that the identification line is released by the second wire wheel 109, a signal is sent to the first motor 104. Of course, the first identification portion 118 may also be, for example, a magnetic body or a bump, and correspondingly, the sensor 106 may be, for example, a Hall sensor 106 or a micro switch.

[0050] It should be noted that the above-mentioned locking mechanism 103 is only an exemplary implementation method. In a specific embodiment, the purpose of locking the first wire wheel 102 can also be achieved by, for example, interlocking with the first wire wheel 102 or locking the first wire wheel 102.

[0051] Cooperate Figure 2 As shown, in some embodiments, the second winding spool group 108 may include a second wheel 109, a second driving device 110 and a limiting mechanism 111, the second wheel 109 is used to wind or release the elastic line 117 in a relaxed state; the second driving device 110 may include, for example, a second motor, and the second motor may be transmission-connected to the second wheel 109, and is used to drive the second wheel 109 to rotate so as to wind the elastic line 117 in a relaxed state; the limiting mechanism 111 is connected to the second wheel 109, and the limiting mechanism 111 is constructed as follows: when the torque generated by the second wheel 109 is greater than the first torque, the second wheel 109 is allowed to rotate and release the elastic line 117, and when the torque generated by the second wheel 109 is less than the first torque, the second wheel 109 is limited from rotating.

[0052] During the energy storage process, the first winding spool group 101 winds the elastic line 117, and the elastic line 117 is gradually stretched from a relaxed state to a tensioned state. During this process, the tension applied by the elastic line 117 to the second wheel 109 gradually increases, and the torque generated by the second wheel 109 also gradually increases. When the torque generated by the second wheel 109 is less than the first torque, it indicates that the elastic line 117 has not been fully stretched to the tensioned state. The second wheel 109 is restricted from rotating by the limiting mechanism 111, so that the first winding spool group 101 continues to stretch the elastic line 117 for energy storage. When the torque generated by the second wheel 109 is greater than the first torque, it indicates that the elastic line 117 has been stretched to the tensioned state. Continuing to stretch may exceed the bearing limit of the elastic line 117, and the restriction of the limiting mechanism 111 on the second wheel 109 is released, allowing the second wheel 109 to rotate and release the elastic line 117. Afterwards, the tension applied by the elastic wire 117 to the second wire wheel 109 is reduced, and the limiting mechanism 111 may limit the rotation of the second wire wheel 109 again.

[0053] In this way, during the energy storage process, the winding speed of the first winding spool group 101 can be greater than the unwinding speed of the second winding spool group 108, stretching the elastic wire 117, thereby achieving the purpose of converting the rotational energy of the first winding spool group 101 into elastic potential energy of the elastic wire 117 for storage.

[0054] Optionally, the sizes of the first wire wheel 102 and the second wire wheel 109 may be the same or different, and the axes of the first wire wheel 102 and the second wire wheel 109 may be arranged parallel to each other. Of course, the axes of the first wire wheel 102 and the second wire wheel 109 may also be non-parallel to each other.

[0055] Cooperate Figure 3As shown, in some embodiments, the limiting mechanism 111 includes a first gear 112 and an elastic arm 113, the first gear 112 is transmission-connected to the second pulley 109, and one end of the elastic arm 113 extends into the tooth groove of the first gear 112; the elastic arm 113 is constructed as follows: when the torque generated by the first gear 112 is greater than the second torque, it is deformed and disengaged from the tooth groove of the first gear 112 to allow the first gear 112 and the second pulley 109 to rotate; when the torque generated by the first gear 112 is less than or equal to the second torque, it stops the first gear 112 to limit the rotation of the second pulley 109.

[0056] Optionally, the first gear 112 can be arranged coaxially with the second pulley 109, the elastic arm 113 can be arranged along the radial direction of the first gear 112, one end of the elastic arm 113 can extend into the wheel groove of the first gear 112, and the other end of the elastic arm 113 can be fixed on, for example, a machine body or a bracket, and the other end of the elastic arm 113 can also be rotatably connected to the machine body or the bracket.

[0057] During the energy storage process, as the elastic line 117 is gradually tightened, the torque generated by the second wire wheel 109 gradually increases, and the torque generated by the first gear 112 connected thereto also gradually increases. The thrust force applied by the first gear 112 to one end of the elastic arm 113 gradually increases, and the deformation of the elastic arm 113 gradually increases, until the other end of the elastic arm 113 is disengaged from the tooth groove of the first gear 112 due to the excessive deformation, and the restriction on the first gear 112 and the second wire wheel 109 is released, and the second wire wheel 109 starts to release the wire. When the first gear 112 rotates a certain angle, the elastic arm 113 is reset, and one end thereof re-extends into the wheel groove of the first gear 112. Optionally, the elastic arm 113 can be a spring sheet, and a roller 114 can be set at one end of the elastic arm 113 to facilitate one end of the elastic arm 113 to slide out of the wheel groove of the first gear 112, so as to avoid the elastic arm 113 and the first gear 112 from getting stuck to each other and reducing friction.

[0058] In some embodiments, the elastic arm 113 is constructed to be able to rotate around the rotation center at its other end, and a first stop component 115 and a second stop component 116 are respectively provided on the rotation path of the elastic arm 113; the first stop component 115 is located in one rotation direction of the elastic arm 113, and is used to limit the rotation angle of the elastic arm 113 in the rotation direction, so as to limit the elastic arm 113 from rotating out of the tooth groove of the first gear 112 when the second wire wheel 109 releases the elastic wire 117 and drives the first gear 112 to rotate; the second stop component 116 is located in the other rotation direction of the elastic arm 113, and is used to limit the rotation angle of the elastic arm 113 in the other rotation direction, so as to allow the elastic arm 113 to rotate out of the tooth groove of the first gear 112 when the second wire wheel 109 winds the elastic wire 117 and drives the first gear 112 to rotate.

[0059] During the energy storage process, the first stop component 115 can limit the elastic arm 113 from rotating in one rotation direction, so that the elastic arm 113 can limit the rotation speed of the second wire wheel 109, thereby achieving the purpose of stretching the elastic line 117 to store energy. During the energy release process, the second stop component 116 allows the elastic arm 113 to rotate in the other rotation direction within a certain rotation angle range, thereby avoiding limiting the rotation of the second wire wheel 109 and preventing the elastic arm 113 from excessively rotating away from the first gear 112.

[0060] It should be noted that the above-mentioned limiting mechanism 111 is only an exemplary implementation method. In specific implementation, the pay-off speed of the second wire wheel 109 can also be limited by means of, for example, damping or torque detection, so as to achieve the purpose of tensioning the elastic wire 117 for energy storage.

[0061] In some embodiments, the output mechanism 300 further includes a transformer circuit 314, which is connected to the power generation device 301 and is used to adjust the power parameters of the electric energy output by the power generation device 301. Optionally, the transformer circuit 314 can be used to transform, stabilize, rectify, convert DC to AC, etc. the electric energy output by the power generation device 301.

[0062] Optionally, the power conversion circuit 314 is connected to the second drive device 110 to supply power to the second drive device 110. In this way, during the energy release process, self-power can be achieved without relying on an external power supply. Optionally, the output mechanism 300 may also include a second controller 315 and an output interface 316, the power conversion circuit 314 may be connected to the second drive device 110 through the second controller 315, the second controller 315 may also be connected to the output interface 316, the output interface 316 is used to connect to a load, and the second controller 315 is used to control the output of electric energy.

[0063] Cooperate Figure 4 As shown, in some embodiments, the clutch mechanism 306 includes a first rotating member 307, a second rotating member 308 and a moving mechanism 309. The first rotating member 307 and the second rotating member 308 are coaxially arranged, the first rotating member 307 is transmission-connected to the first winding spool group 101, and the second rotating member 308 is transmission-connected to the power generation device 301. The first rotating member 307 and the second rotating member 308 are respectively provided with first clamping structures 313 that can be engaged with each other on the opposite end surfaces, and the moving mechanism 309 is used to drive the first rotating member 307 or the second rotating member 308 to move axially, so that the first rotating member 307 is engaged with the second rotating member 308 through the first clamping structure 313, or the first rotating member 307 and the second rotating member 308 are disconnected.

[0064] When energy storage is required, the first rotating member 307 or the second rotating member 308 can be driven to move axially through the moving mechanism 309, and the first rotating member 307 and the second rotating member 308 are disconnected to avoid the first winding spool group 101 from releasing energy synchronously during the energy storage process.

[0065] When energy release is required, the first rotating member 307 or the second rotating member 308 can be driven to move axially through the moving mechanism 309, so that the first rotating member 307 and the second rotating member 308 are engaged with each other through the first clamping structure 313. In this way, the first winding spool set 101 can drive the power generation device 301 to operate to convert elastic potential energy into electrical energy.

[0066] Optionally, the moving mechanism 309 may include, for example, a third motor 310 and a screw 311, a nut 312 may be provided on the first rotating member 307 or the second rotating member 308, the screw 311 is threadedly connected to the nut 312, and the third motor 310 is drivingly connected to the screw 311. Optionally, the first clamping structure 313 may include a clamping block protruding on the end surface of the second rotating member 308, and a clamping groove provided on the end surface of the first rotating member 307. For example, if the first rotating member 307 or the second rotating member 308 is a ball bearing, a nut 312 may be provided on the outer ring of the ball bearing, and a clamping block may be provided on the inner ring of the ball bearing, such as Figure 5 shown.

[0067] It should be noted that the clutch mechanism 306 can be implemented using a variety of clutch structures and is not limited to the specific structure in the above example.

[0068] Cooperate Figure 6As shown, in some embodiments, the power generation device 301 includes a second gear set 302, a flywheel 303, a third gear set 304 and a generator 305, the first winding spool set 101 can be connected to the second gear set 302 through the clutch mechanism 306, the second gear set 302 is connected to the third gear set 304 through the flywheel 303, and the third gear set 304 is connected to the generator 305. The flywheel 303 can store inertial potential energy to ensure the smooth operation of the generator 305, thereby ensuring the stability of the output power of the generator 305.

[0069] In specific implementation, one or more gear sets may be selected according to actual needs. For example, only the second gear set 302 may be provided, or other gear sets may be provided in addition to the second gear set 302 and the third gear set 304 .

[0070] Cooperate Figure 6 As shown, in some embodiments, the mechanical core energy storage device includes a plurality of the energy storage mechanisms 100, and the plurality of energy storage mechanisms 100 are all connected to the first driving device 201, and are all connected to the power generation device 301 through the clutch mechanism 306, so as to be able to store and release energy synchronously. In this way, the energy storage capacity and power of the mechanical core energy storage device can be improved.

[0071] Cooperate Figure 6 As shown, in some embodiments, the mechanical core energy storage device includes a plurality of the energy storage mechanisms 100, the input mechanism 200 includes a plurality of first drive devices 201, the output mechanism 300 includes a plurality of clutch mechanisms 306, the energy storage mechanism 100, the first drive device 201 and the clutch mechanism 306 correspond one to one, the energy storage mechanism 100 is connected to the corresponding first drive device 201, and the energy storage mechanism 100 is connected to the power generation device 301 through the corresponding clutch mechanism 306, so as to be able to synchronously or separately drive the power generation device 301 to generate electricity. In this way, when the output power required by the load is low, the power generation device 301 can be driven by a single set of energy storage mechanisms 100 to generate electricity, and when the output power required by the load is high, the power generation device 301 can be synchronously driven by multiple sets of energy storage mechanisms 100 to generate electricity, thereby achieving the purpose of flexible power supply.

[0072] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A mechanical core energy storage device, characterized in that: include: An energy storage mechanism, comprising a first winding spool group, a second winding spool group and an elastic line capable of elastic stretching and contraction, wherein two ends of the elastic line are respectively connected to the first winding spool group and the second winding spool group and are wound on the first winding spool group and / or the second winding spool group; An input mechanism, comprising a first drive device, the first drive device being drivingly connected to the first winding bobbin set and configured to convert electrical energy into rotational energy to drive the first winding bobbin set to rotate; an output mechanism, comprising a power generation device and a clutch mechanism, wherein the power generation device is connected to the first winding bobbin group through the clutch mechanism, and the clutch mechanism is used to drive and connect the power generation device and the first winding bobbin group, or to cut off the connection between the power generation device and the first winding bobbin group; During the energy storage process, the first driving device drives the first winding spool group to wind the elastic wire, and the second winding spool group releases the elastic wire, and the winding speed of the first winding spool group is greater than the unwinding speed of the second winding spool group, so as to tension the elastic wire and convert the rotational energy into elastic potential energy for storage; During the energy release process, the first winding spool group is connected to the power generation device through the clutch mechanism, the elastic wire contracts and drives the first winding spool group to rotate, so as to drive the power generation device to generate electricity and output electrical energy, and the second winding spool group winds up the elastic wire in a relaxed state; The clutch mechanism comprises a first rotating member, a second rotating member and a moving mechanism.

2. The mechanical core energy storage device according to claim 1, characterized in that: The first winding spool assembly includes a first wire wheel and a locking mechanism, wherein the first wire wheel is used to wind or release the elastic wire in a tensioned state, and the locking mechanism is used to lock the first wire wheel to limit the rotation of the first wire wheel.

3. The mechanical core energy storage device according to claim 1, characterized in that: The second winding bobbin set comprises: a second wire wheel for winding or releasing the elastic wire in a slack state; a second driving device, which is drivingly connected to the second wire wheel and is used to drive the second wire wheel to rotate so as to wind up the elastic wire in a relaxed state; A limiting mechanism is connected to the second wire wheel, and the limiting mechanism is constructed to allow the second wire wheel to rotate and release the elastic line when the torque generated by the second wire wheel is greater than the first torque, and to limit the rotation of the second wire wheel when the torque generated by the second wire wheel is less than the first torque.

4. The mechanical core energy storage device according to claim 3, characterized in that: The limiting mechanism comprises a first gear and an elastic arm, the first gear is transmission-connected to the second wire wheel, and one end of the elastic arm extends into the tooth groove of the first gear; The elastic arm is constructed to: deform and disengage from the tooth groove of the first gear when the torque generated by the first gear is greater than the second torque to allow the first gear and the second wire wheel to rotate; and stop the first gear when the torque generated by the first gear is not greater than the second torque to limit the rotation of the second wire wheel.

5. The mechanical core energy storage device according to claim 4, characterized in that: The elastic arm is configured to be rotatable around a rotation center at the other end thereof, and a first stop member and a second stop member are respectively provided on the rotation path of the elastic arm; The first stop member is located in a rotation direction of the elastic arm, and is used to limit the rotation angle of the elastic arm in the rotation direction, so as to limit the elastic arm from rotating out of the tooth groove of the first gear when the second wire wheel releases the elastic wire and drives the first gear to rotate; The second stop member is located in the other rotation direction of the elastic arm, and is used to limit the rotation angle of the elastic arm in the other rotation direction, so as to allow the elastic arm to rotate out of the tooth groove of the first gear when the second wire wheel winds the elastic wire and drives the first gear to rotate.

6. The mechanical core energy storage device according to claim 3, characterized in that: The output mechanism also includes a power conversion circuit, which is connected to the power generation device and is used to adjust the power parameters of the electric energy output by the power generation device.

7. The mechanical core energy storage device according to claim 6, characterized in that: The power conversion circuit is connected to the second driving device to supply power to the second driving device.

8. The mechanical core energy storage device according to claim 1, characterized in that: The first rotating member and the second rotating member are coaxially arranged, the first rotating member is transmission-connected to the first winding spool group, the second rotating member is transmission-connected to the power generation device, and first clamping structures that can engage with each other are respectively provided on opposite end faces of the first rotating member and the second rotating member, and the moving mechanism is used to drive the first rotating member or the second rotating member to move axially so that the first rotating member is engaged with the second rotating member through the first clamping structure, or the first rotating member and the second rotating member are disconnected.

9. The mechanical core energy storage device according to claim 1, characterized in that: The power generation device comprises a first gear set, a flywheel and a generator, the first gear set is connected to the clutch mechanism and the flywheel respectively, the first gear set can be transmission-connected to the first winding bobbin set through the clutch mechanism, and the flywheel is transmission-connected to the generator; or The power generation device includes a first gear group, a flywheel, a second gear group and a generator. The first gear group is respectively connected to the clutch mechanism and the flywheel. The first gear group can be transmission-connected to the first winding spool group through the clutch mechanism. The flywheel is transmission-connected to the second gear group, and the second gear group is transmission-connected to the generator.

10. The mechanical core energy storage device according to claim 1, characterized in that: The mechanical core energy storage device comprises a plurality of the energy storage mechanisms, and the plurality of energy storage mechanisms are all connected to the first driving device and are all connected to the power generation device through the clutch mechanism so as to be able to store and release energy synchronously; and / or The mechanical core energy storage device includes a plurality of energy storage mechanisms, the input mechanism includes a plurality of first drive devices, the output mechanism includes a plurality of clutch mechanisms, the energy storage mechanism, the first drive device and the clutch mechanism correspond one to one, the energy storage mechanism is connected to the corresponding first drive device, and the energy storage mechanism is connected to the power generation device through the corresponding clutch mechanism, so as to be able to synchronously or separately drive the power generation device to generate electricity.

Images