Power generation device, battery system, and electronic device

Abstract

The application provides a power generation device, a battery system and an electronic device, the power generation device comprising a power generation assembly and a driving assembly, the power generation assembly is configured to be arranged in a living body, the driving assembly is configured to be located outside the living body, the power generation assembly comprises a power generation unit and a first magnetic part, the first magnetic part is movably arranged on the power generation unit, the driving assembly comprises an electromagnet and a current generator, the current generator is electrically connected with the electromagnet, and the current generator passes current to the electromagnet, and the current passed by the current generator is configured to make the electromagnet form a dynamic magnetic field, so that the electromagnet drives the first magnetic part to reciprocate relative to the power generation unit. The power generation device improves the convenience and charging efficiency of the battery system.

Description

Technical Field

[0001] This invention relates to the field of battery technology, and more particularly to a power generation device, a battery system, and an electronic device. Background Technology

[0002] Active implantable medical devices have been widely used in the detection and treatment of various diseases, such as pacemakers, defibrillators, and neurostimulators. Active implantable medical devices require an internal power source to continuously power their operation.

[0003] In related technologies, the power source for implantable medical devices can be either a disposable battery or a rechargeable battery. Disposable batteries require surgery to replace the battery after the power is depleted, causing great pain and inconvenience to the patient. Rechargeable batteries, on the other hand, can be recharged when the power is depleted, but the recharge process requires the patient to move.

[0004] However, many patients are not physically fit for exercise, and charging the batteries for implantable medical devices is currently very difficult. Summary of the Invention

[0005] In view of the above problems, embodiments of this application provide a power generation device, a battery system, and an electronic device to solve the technical problem of the difficulty in charging rechargeable batteries of current implantable medical devices.

[0006] To achieve the above objectives, a first aspect of this application provides a power generation device, which includes a power generation component and a drive component. The power generation component is configured to be disposed inside a living organism, and the drive component is configured to be located outside the living organism. The power generation component includes a power generation unit and a first magnetic element, which is movably disposed on the power generation unit. The drive component includes an electromagnet and a current generator, which is electrically connected to the electromagnet and supplies current to the electromagnet. The current supplied by the current generator is configured to cause the electromagnet to form a dynamic magnetic field, thereby causing the electromagnet to drive the first magnetic element to reciprocate relative to the power generation unit.

[0007] As an alternative implementation, the electromagnet may include an iron core and a first coil, the first coil being wound around the iron core, a current generator being electrically connected to the first coil, the magnetic field of the first coil magnetizing the iron core, and the end of the iron core facing the first magnetic element.

[0008] As an alternative implementation, the magnetic field axis of the iron core can be parallel to the magnetic field axis of the first magnetic element.

[0009] As an alternative implementation, the current generator can be a DC generator, which intermittently supplies DC current to the electromagnet so that the electromagnet intermittently generates a magnetic field.

[0010] As an alternative implementation, when the DC generator supplies DC current to the electromagnet, the polarity of the end of the electromagnet facing the first magnetic element can be the same as the polarity of the end of the first magnetic element facing the electromagnet.

[0011] As an alternative implementation, the current generator can be an AC generator, which supplies alternating current to the electromagnet so that the electromagnet forms a magnetic field with alternating polarity.

[0012] As an optional implementation, the waveform of the alternating current supplied by the AC generator to the electromagnet can be a square wave; or, the waveform of the alternating current supplied by the AC generator to the electromagnet can be a sine wave.

[0013] As an alternative implementation, the frequency of the alternating current supplied by the alternating current generator to the electromagnet can be 20Hz-20000Hz.

[0014] As an optional implementation, the power generation unit may include a housing and multiple electrode plates. The first magnetic element and the multiple electrode plates are disposed inside the housing. The electrode plates may include a metal layer and a first friction layer. The outer wall of the first magnetic element is provided with a second friction layer. The first magnetic element reciprocates between different electrode plates, and the second friction layer rubs against the first friction layer of different electrode plates to generate alternating current between the metal layers of the multiple electrode plates.

[0015] As an optional implementation, the power generation unit may further include a first electrode plate, a second electrode plate, and an elastic element. The elastic element is connected between the first electrode plate and the second electrode plate. The side of the second electrode plate facing the first electrode plate has a piezoelectric layer. When the first magnetic element reciprocates relative to the power generation unit, the first magnetic element abuts against or separates from the first electrode plate, and the elastic element generates alternating pressure on the piezoelectric layer to form an alternating current between the first electrode plate and the second electrode plate.

[0016] As an optional implementation, the power generation unit may further include a second coil, and the housing may include an outer shell and an inner shell, with a cavity between the inner shell and the outer shell. The second coil is disposed in the cavity, wherein when the first magnetic element reciprocates relative to the power generation unit, the first magnetic element cuts the magnetic lines of force of the second coil, so that the second coil generates alternating current.

[0017] As an alternative implementation, the driving component may further include a first detection unit configured to detect the strength of the magnetic field interaction between the first magnetic element and the electromagnet.

[0018] As an optional implementation, the driving component may further include a second detection unit configured to detect external environmental information of the driving component in order to start the driving component based on the detected environmental information.

[0019] Secondly, this application also provides a battery system, which includes a battery and a power generation device as described above. The power generation component in the power generation device is electrically connected to the battery and charges the battery under the drive of the drive component in the power generation device.

[0020] As an alternative implementation, the battery system may also include a rectifier module, a battery management module, and an alarm module. The rectifier module and the battery management module are connected between the power generation component and the battery, and the alarm module is connected to the battery management module and configured to issue a prompt based on the battery's charge level.

[0021] Thirdly, this application also provides an electronic device, which includes a device body and a battery system as described above. The battery and power generation components of the battery system are disposed on the device body, the device body is disposed inside the human body, and the drive components of the battery system are located outside the human body.

[0022] This application provides a power generation device, a battery system, and an electronic device. A dynamic magnetic field is formed by a driving component installed outside the human body to drive a power generation component installed inside the human body, thereby charging the battery inside the human body. The charging process does not cause discomfort to the human body and improves the convenience and efficiency of charging.

[0023] In addition to the technical problems solved by this application, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions as described above, other technical problems that can be solved by the power generation device, battery system, and electronic equipment provided by this application, other technical features contained in the technical solutions, and the beneficial effects brought about by these technical features will be further explained in detail in the specific embodiments. Attached Figure Description

[0024] Figure 1 This is a first schematic diagram of a power generation device provided in an embodiment of this application;

[0025] Figure 2 A schematic diagram of the power generation components in the power generation device provided in the embodiments of this application;

[0026] Figure 3 This is a schematic diagram of a first waveform of a current generator in a power generation device provided in an embodiment of this application;

[0027] Figure 4 This is a second schematic diagram of a power generation device provided in an embodiment of this application;

[0028] Figure 5 This is a schematic diagram of a second waveform of the current generator in the power generation device provided in the embodiments of this application;

[0029] Figure 6This is a schematic diagram of a third waveform of the current generator in the power generation device provided in the embodiments of this application;

[0030] Figure 7 This is a schematic diagram of a battery system provided in an embodiment of this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 100-Power generation component; 110-First magnetic element; 111-Second friction layer; 120-Power generation unit; 121-Housing shell; 1211-Outer shell; 1212-Inner shell; 122-Electrode plate; 1221-First friction layer; 1222-Metal layer; 123-First electrode plate; 124-Second electrode plate; 1241-Piezoelectric layer; 125-Second coil; 126-Elastic element;

[0033] 200-Drive assembly; 210-Electromagnet; 211-Iron core; 212-First coil; 220-Current generator; 220a-DC generator; 220b-AC generator; 230-First detection unit; 240-Second detection unit;

[0034] 300-battery;

[0035] 400-rectifier module;

[0036] 500-Battery Management Module;

[0037] 600-Alarm Module;

[0038] 700 - Main body of the equipment;

[0039] a - First waveform; b - Second waveform; c - Third waveform. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0041] Implantable medical devices can be powered by either disposable or rechargeable batteries. Disposable batteries typically have a lifespan of 7 to 10 years. Once the battery is depleted, surgery is required to replace it, a process that poses safety risks and causes significant pain for the patient. Therefore, rechargeable batteries are now being used in medical devices. When the rechargeable battery is depleted, it can be recharged wirelessly or through the patient's own movement. However, wireless charging, due to its eddy current heating effect, can cause burns to human tissue during the charging process, affecting human health. Furthermore, due to limitations in their physical condition, patients are often not suitable for strenuous exercise, making recharging through their own movement difficult and inefficient.

[0042] This application provides a power generation device, a battery system, and an electronic device. A dynamic magnetic field is formed by a driving component 200 disposed outside the human body, which drives a power generation component disposed inside the human body, thereby charging the battery inside the human body. The charging process does not cause discomfort to the human body and improves the convenience and efficiency of charging.

[0043] The following description, in conjunction with the accompanying drawings, illustrates the power generation device, battery system, and electronic device of this application. It should be noted that the electronic device of this application can be an implantable medical device, including but not limited to pacemakers and defibrillators, implantable cardiac contractility modulators, implantable circulatory support devices, various neurostimulators (e.g., including brain pacemakers, spinal cord stimulators, vagus nerve stimulators, sacral nerve stimulators, phrenic nerve stimulators, etc.), assistive hearing devices, drug pumps, electrocardiogram recorders, etc. Furthermore, it may also include brain-computer interfaces, implanted chips, and other human-computer interaction devices. This application does not specifically limit these aspects.

[0044] Figure 1 This is a first schematic diagram of a power generation device provided in an embodiment of this application. Figure 2 This is a schematic diagram of the power generation components in the power generation device provided in the embodiments of this application.

[0045] Please refer to Figure 1 and Figure 2 This application provides a power generation device, which includes a power generation component 100 and a drive component 200. The power generation component 100 can be disposed on an implantable electronic device, while the drive component 200 can drive the power generation component 100 to generate electricity in a non-contact manner. That is, the power generation component 100 is configured to be disposed inside a biological body, and the drive component 200 is configured to be located outside the biological body, so that the power generation component 100 can charge the battery 300 in the implantable electronic device.

[0046] The power generation component 100 includes a power generation unit 120 and a first magnetic element 110. The first magnetic element 110 is movably disposed on the power generation unit 120. When the first magnetic element 110 moves relative to the power generation unit 120, the first magnetic element 110 can serve as a triggering mechanism for the power generation unit 120, causing the power generation unit 120 to generate electricity. The driving component 200 generates a dynamic magnetic field, which drives the first magnetic element 110 to move relative to the power generation unit 120.

[0047] In some embodiments, the drive assembly 200 may include an electromagnet 210 and a current generator 220. The current generator 220 is electrically connected to the electromagnet 210 and supplies current to the electromagnet 210. The current supplied by the current generator 220 is configured to cause the electromagnet 210 to form a dynamic magnetic field, thereby enabling the electromagnet 210 to drive the first magnetic element 110 to reciprocate relative to the power generation unit 120. Here, the dynamic magnetic field refers to the magnetic field formed by the change in the strength or polarity of the magnetic field of the electromagnet 210.

[0048] It is understandable that the first magnetic component 110 itself also forms a magnetic field. The magnetic field formed by the electromagnet 210 interacts with the magnetic field of the first magnetic component 110, so that there is a magnetic force between the electromagnet 210 and the first magnetic component 110. Furthermore, since the strength or polarity of the magnetic field formed by the electromagnet 210 is in dynamic change, the first magnetic component 110 will move accordingly as the magnetic field of the electromagnet 210 changes.

[0049] Taking the example of a repulsive or attractive force between the electromagnet 210 and the first magnetic component 110, when the magnetic field strength of the electromagnet 210 increases and there is a repulsive force on the first magnetic component 110, the first magnetic component 110 will move away from the electromagnet 210. When the magnetic field strength of the electromagnet 210 weakens or the polarity of the electromagnet 210 changes, causing the electromagnet 210 to have an attractive force on the first magnetic component 110, the first magnetic component 110 will move back. Thus, with the regular change of the magnetic field of the electromagnet 210, the first magnetic component 110 can move back and forth, thereby enabling the first magnetic component 110 to cause the power generation unit 120 to generate electrical energy.

[0050] It should be noted that when the power generation component 100 is placed in an implantable electronic device inside the body, the drive component 200 is placed outside the body. Taking the implantable electronic device applied to the human body as an example, the power generation component 100 can drive the first magnetic component 110 to move relative to the power generation unit 120 through the movement of the human body, thereby enabling the power generation unit 120 to generate electrical energy. The drive component 200 assists the first magnetic component 110 to move outside the human body through a dynamic magnetic field. Thus, for users who have difficulty moving, the power generation component 100 can also realize the charging function, improving the convenience and efficiency of charging. In addition, the magnetic field itself can also play a magnetic therapy role for the human body, which is beneficial to improving human health.

[0051] The structure and specific method by which the electromagnet 210 in the drive assembly 200 generates a dynamic magnetic field will be described in detail below.

[0052] Please continue to refer to Figure 1 and Figure 2 In one possible implementation, the electromagnet 210 may include an iron core 211 and a first coil 212, the first coil 212 being wound around the iron core 211, and a current generator 220 being electrically connected to the first coil 212. The first coil 212 generates a magnetic field when current is applied, and this magnetic field can magnetize the iron core 211. The end of the iron core 211 faces the first magnetic element 110, so that the iron core 211 can generate a magnetic force on the first magnetic element 110.

[0053] It is understandable that the strength and polarity of the magnetic field generated by the first coil 212 can vary depending on the properties of the current supplied by the current generator 220. When the current generated by the current generator 220 has different variation patterns or trends, the magnetic field generated by the first coil 212 has different dynamic variation trends. Correspondingly, the dynamic magnetic field formed by the electromagnet 210 has different variation patterns, thereby making the first magnetic component 110 have different reciprocating motion patterns.

[0054] In some embodiments, the magnetic field axis of the iron core 211 can be parallel to the magnetic field axis of the first magnetic element 110. After the iron core 211 is magnetized by the magnetic field of the first coil 212, the iron core 211 becomes a magnetic body. The magnetic state and polarity of the iron core 211 will change with the change of the magnetic field state of the first coil 212. The parallel arrangement of the magnetic field of the iron core 211 and the first magnetic element 110 can make the magnetic force of the iron core 211 on the first magnetic element 110 more significant, thereby improving the driving efficiency of the first magnetic element 110.

[0055] For example, when using the drive assembly 200, the magnetic field axis of the electromagnet 210 can be coaxially set with the magnetic field axis of the first magnetic component 110. The magnetic field strength of both the first magnetic component 110 and the electromagnet 210 can be between 1000 Gauss and 3000 Gauss. The magnetic field strength of the electromagnet 210 can vary within a preset range, or the range or frequency of the magnetic field strength of the electromagnet 210 can be adjusted according to user needs. The magnetic field strength of the first magnetic component 110 can be, but is not limited to, values ​​such as 1000 Gauss, 1500 Gauss, 2000 Gauss, 2500 Gauss, and 3000 Gauss. Preferably, the magnetic field strength can be controlled within the range of 1000 Gauss to 2000 Gauss, so as to have a good magnetic therapy effect on the human body without causing harm to the human body. The magnetic field strength of the electromagnet 210 can vary within the range of 1000 Gauss to 3000 Gauss, and the variation process is adjusted by the current change of the current generator 220.

[0056] It should be noted that the current generated by the current generator 220 will affect the magnetic field strength and polarity of the electromagnet 210. Different current waveforms generated by the current generator 220 correspond to different magnetic field change patterns of the electromagnet 210, which will be explained through different examples below.

[0057] Figure 3 This is a schematic diagram of a first waveform of a current generator in a power generation device provided in an embodiment of this application;

[0058] Please refer to Figures 1 to 3 In one possible implementation, the current generator 220 can be a DC generator 220a. The DC generator 220a can intermittently supply DC current to the electromagnet 210, and the intermittent DC current can cause the electromagnet 210 to intermittently generate a magnetic field. In this way, the electromagnet 210 can intermittently generate magnetic force on the first magnetic element 110, that is, the electromagnet 210 drives the first magnetic element 110 at a certain period.

[0059] It is understandable that after the current generator 220 connects the first coil 212 with DC current for a certain period of time and then disconnects it for a certain period of time, the first waveform 'a' of the current generated by the current generator 220 is an intermittent waveform with a constant current value, such as... Figure 3 As shown, the horizontal axis represents time t and the vertical axis represents current i. By continuously applying direct current at certain time intervals, the electromagnet 210 can switch back and forth between the state of forming an electromagnetic field and the state of not forming an electromagnetic field.

[0060] For example, when the current generator 220 connects DC power to the first coil 212, the polarity of the end of the electromagnet 210 facing the first magnetic element 110 can be the same as the polarity of the end of the first magnetic element 110 facing the electromagnet 210. For example, the polarity of the end of the electromagnet 210 facing the first magnetic element 110 is the S pole. The first magnetic element 110 can be a permanent magnet. The electromagnet 210 can push the first magnetic element 110 to move away from the electromagnet 210 by the repulsive force formed by the magnetic field. When the current generator 220 disconnects the current to the first coil 212, the force of the electromagnet 210 on the first magnetic element 110 disappears. After the first magnetic element 110 moves to the end of its stroke, it rebounds by impact force and moves towards the electromagnet 210. In this way, when the current generator 220 repeatedly and intermittently supplies DC power, the first magnetic element 110 realizes reciprocating movement.

[0061] Figure 4 This is a second schematic diagram of the power generation device provided in the embodiments of this application. Figure 5 This is a schematic diagram of a second waveform of the current generator in the power generation device provided in the embodiments of this application. Figure 6 This is a schematic diagram of a third waveform of the current generator in the power generation device provided in the embodiments of this application.

[0062] Please refer to Figure 2 , Figure 4 , Figure 5 and Figure 6 In another possible implementation, the current generator 220 can be an AC generator 220b, which can supply AC current to the electromagnet 210. When the first coil 212 is supplied with AC current, the electromagnet 210 can form a magnetic field with alternating polarity.

[0063] It is understandable that the magnetic field change pattern of electromagnet 210 is consistent with the waveform pattern of alternating current of current generator 220. As the magnetic field of electromagnet 210 changes, the dynamic magnetic field can alternately generate repulsive and attractive forces on the first magnetic component 110. For example, when the dynamic magnetic field of electromagnet 210 generates a repulsive force on the first magnetic component 110, the first magnetic component 110 moves away from electromagnet 210, while when the dynamic magnetic field of electromagnet 210 generates an attractive force on the first magnetic component 110, the first magnetic component 110 moves towards electromagnet 210. With the alternating changes of repulsive and attractive forces, the first magnetic component 110 can achieve reciprocating movement.

[0064] In some embodiments, the waveform of the alternating current supplied by the alternating current generator 220b to the electromagnet 210 can be a square wave, such as... Figure 5As shown, the second waveform b of the AC power of the AC generator 220b is a square wave, that is, the first coil 212 is alternately supplied with forward current and reverse current, which alternately change at a certain frequency. Thus, the dynamic magnetic field formed by the electromagnet 210 changes polarity alternately under a certain magnetic field strength value. That is, the absolute value of the magnetic field strength of the electromagnet 210 remains unchanged, but the polarity at the end facing the first magnetic element 110 alternates between the S pole and the N pole.

[0065] In other embodiments, the waveform of the alternating current supplied by the alternating current generator 220b to the electromagnet 210 can be a sine wave, such as... Figure 6 As shown, the third waveform c of the AC power from the AC generator 220b can be a sine wave, the magnetic field strength of the electromagnet 210 changes with the corresponding waveform, and the polarity of the dynamic magnetic field also changes alternately with the corresponding frequency.

[0066] For example, the frequency of the alternating current supplied by the AC generator 220b to the electromagnet 210 can be 20Hz-20000Hz, which is within the frequency range of sound waves that the human body can perceive. For example, the frequency supplied by the AC generator 220b can include, but is not limited to, 20Hz, 30Hz, 50Hz, 1000Hz, 10000Hz, 20000Hz, etc. Preferably, the frequency range of the alternating current supplied by the AC generator 220b to the electromagnet 210 can be 20Hz-50Hz. In this way, the AC generator 220b does not need to increase the frequency, and the cost is also reduced. At the same time, when the implanted electronic device in which the power generation component 100 is applied has non-magnetic metals such as aluminum, copper, and titanium, controlling the frequency range of the AC generator 220b can reduce the eddy current heating effect generated by the metal and ensure the user's comfort during the charging process.

[0067] It should be noted that when the driving component 200 drives the power generation component 100 and causes it to generate electricity, the driving component 200 can be located in front of, behind or to the side of the human body. For example, by adjusting the relative posture of the driving component 200 and the power generation component 100 located inside the human body, the driving component 200 can be located on the same straight line as the power generation component 100, thereby ensuring that the first magnetic component 110 is subjected to more balanced force under the action of the dynamic magnetic field generated by the electromagnet 210 and reducing frictional loss.

[0068] The following is a detailed description of the specific structure and method by which the first magnetic component 110 moves under the drive of the electromagnet 210, thereby causing the power generation unit 120 to generate electricity.

[0069] Please continue to refer to Figure 1 and Figure 2In the power generation device provided in this application embodiment, the power generation unit 120 can use the movement of the first magnetic element 110 as a power source to promote power generation. The movement of the first magnetic element 110 relative to the power generation unit 120 can realize one or more power generation methods such as triboelectric power generation, piezoelectric power generation, or magnetic induction power generation, which will be described below.

[0070] In one possible implementation, the power generation unit 120 may include a housing 121 and a plurality of electrode plates 122. The first magnetic element 110 and the plurality of electrode plates 122 are both disposed inside the housing 121. The electrode plates 122 may include a metal layer 1222 and a first friction layer 1221. The outer wall of the first magnetic element 110 is provided with a second friction layer 111. The first friction layer 1221 and the second friction layer 111 are in contact.

[0071] It is understood that the electrode sheet 122 can be attached to the inner wall of the housing 121. When the first magnetic element 110 moves back and forth between different electrode sheets 122, the first friction layer 1221 and the second friction layer 111 generate charge through relative friction, causing the metal layer 1222 to generate electrostatic induction and polarization. Thus, when the second friction layer 111 rubs against the first friction layer 1221 of different electrode sheets 122 and moves back and forth, an alternating current is formed between the metal layers 1222 of the multiple electrode sheets 122.

[0072] For example, the first friction layer 1221 can be polyvinylidene fluoride (PVDF), the second friction layer 111 can be silicone rubber, and the metal layer 1222 can be aluminum or other conductive metals or alloys. In addition, multiple electrode plates 122 can be respectively disposed on both sides of the inner wall of the housing 121, with two electrode plates 122 disposed on each side. The second friction layer 111 can be disposed on both opposite sides of the first magnetic element 110, so that both sides of the first magnetic element 110 can move rubbed between the two electrode plates 122 to generate electrical energy.

[0073] In one possible implementation, the power generation unit 120 may include a housing 121, a first electrode plate 123, a second electrode plate 124, and an elastic member 126. The elastic member 126 may be connected between the first electrode plate 123 and the second electrode plate 124. The side of the second electrode plate 124 facing the first electrode plate 123 has a piezoelectric layer 1241.

[0074] It is understandable that when the first magnetic element 110 reciprocates relative to the power generation unit 120, the first magnetic element 110 can come into contact with or separate from the first electrode plate 123, and the elastic element 126 exerts alternating pressure on the piezoelectric layer 1241. When the piezoelectric layer 1241 is squeezed, the piezoelectric layer 1241 generates a piezoelectric potential. In order to balance this piezoelectric potential, electrons flow from the first electrode plate 123 to the second electrode plate 124, thereby generating a current. As the elastic element 126 drives the first electrode plate 123 to rebound, the piezoelectric layer 1241 recovers, and the piezoelectric potential weakens. In order to balance the potential difference, electrons flow from the second electrode plate 124 back to the first electrode plate 123, thereby forming an alternating current between the first electrode plate 123 and the second electrode plate 124.

[0075] For example, the elastic element 126 can be a spring, and the first electrode plate 123 and the second electrode plate 124 can both be made of conductive metal materials such as aluminum plates. In addition, the first electrode plate 123 and the second electrode plate 124 can be arranged in pairs. The first electrode plate 123 and the second electrode plate 124 can be arranged at both ends of the reciprocating movement of the first magnetic element 110, so that piezoelectric power generation can be performed at both ends of the movement stroke of the first magnetic element 110 during the movement of the first magnetic element 110, and the elastic force of the elastic element 126 can assist the reciprocating movement of the first magnetic element 110.

[0076] In one possible implementation, the power generation unit 120 may include a housing 121 and a second coil 125. The housing 121 may include an outer shell 1211 and an inner shell 1212, with a cavity between the inner shell 1212 and the outer shell 1211, and the second coil 125 is disposed in the cavity.

[0077] It is understandable that when the first magnetic element 110 reciprocates relative to the power generation unit 120, the first magnetic element 110 moves back and forth inside the housing 121, and the first magnetic element 110 can cut the magnetic lines of force of the second coil 125 so that the second coil 125 generates alternating current, thereby achieving the effect of an electromagnetic induction generator.

[0078] It should be noted that the power generation device provided in this application embodiment can adopt one or a combination of the above-mentioned methods of triboelectric power generation, piezoelectric power generation and magnetic induction power generation. This application embodiment does not make specific limitations on this.

[0079] In one possible implementation, the drive component 200 may further include a first detection unit 230, which is configured to detect the strength of the magnetic field interaction between the first magnetic element 110 and the second magnetic element.

[0080] It is understood that the first detection unit 230 can be a magnetic sensor, and the drive assembly 200 can be equipped with an instrument panel. The instrument panel can be used to display the detection results of the magnetic sensor. When using the power generation device of this application, the user can adjust their body posture according to the instructions on the instrument panel to ensure good charging efficiency. In addition, the magnetic sensor can be turned on automatically or manually through the guidance function of the instrument panel, and this embodiment does not specifically limit this.

[0081] For example, the magnetic sensor may include, but is not limited to, a compass, a magnetic field sensor, a proximity sensor, etc., which can be used to sense the orientation of the first magnetic element 110. This application does not specifically limit the specific type and working principle of the magnetic sensor.

[0082] In some embodiments, the drive assembly 200 may further include a second detection unit 240, which is configured to detect external environmental information of the drive assembly 200, so as to start the drive assembly according to the detected environmental information, thereby turning on the electromagnet 210 and supplying power to the electromagnet 210 by the current generator 220 to form a dynamic magnetic field.

[0083] It is understood that the first detection unit 230 can be an infrared sensor. The infrared sensor can detect whether the user is close to the drive component 200. When the user is close to the drive component 200, the drive component is automatically started, so that the user can directly use the drive component to drive the power generation component 100 to generate electrical energy to charge the implanted electronic device. When the user leaves the drive component 200, the drive component is automatically stopped to save power, thereby improving the convenience of user operation and improving the user experience.

[0084] Figure 7 This is a schematic diagram of a battery system provided in an embodiment of this application.

[0085] Please refer to Figure 7 This application also provides a battery system, which includes a battery 300 and a power generation device as described above. The power generation component 100 in the power generation device is electrically connected to the battery 300 and charges the battery 300 under the drive of the drive component 200 in the power generation device.

[0086] The battery system may further include a rectifier module 400, a battery management module 500, and an alarm module 600. The rectifier module 400 and the battery management module 500 are connected between the power generation component 100 and the battery 300. The rectifier module 400 is used to rectify the AC power generated by the power generation component 100, thereby outputting current and voltage suitable for charging the battery 300. The battery management module 500 is used to manage the power level and operating status of the battery 300. The alarm module 600 can be connected to the battery management module 500 and is configured to issue a prompt based on the power level of the battery 300. For example, when the power level of the battery 300 is close to being depleted, or when the power level of the battery 300 is fully charged, the alarm module 600 can issue an audible prompt.

[0087] For example, the battery 300 can be a lithium metal battery, and the battery system can be a capsule structure for easy implantation into the human body. The lithium metal battery can be recharged, including but not limited to high-energy-density secondary batteries such as secondary lithium-ion batteries, secondary lithium metal batteries, and secondary lithium-sulfur batteries. Preferably, a secondary lithium metal battery can be used, and a secondary negative electrode-free lithium metal battery is preferred among the secondary lithium metal batteries.

[0088] Please continue to refer to Figure 7 This application also provides an electronic device, which includes a device body 700 and a battery system as described above. The battery 300 and power generation component 100 of the battery system are disposed on the device body 700. The device body 700 is disposed inside the human body, and the drive component 200 of the battery system is located outside the human body.

[0089] The battery system and power generation device in the electronic device provided by the present invention have the same structure as the battery system and power generation device described above, and can bring the same or similar technical effects, which will not be described in detail here.

[0090] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0091] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0092] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a particular order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein.

[0093] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A power generation device, characterized in that, include: A power generation component is configured to be disposed inside a living organism. The power generation component includes a power generation unit and a first magnetic element. The first magnetic element is movably disposed on the power generation unit, and when the first magnetic element moves relative to the power generation unit, the power generation unit generates an electric current. A drive assembly is configured to be located outside the organism. The drive assembly includes an electromagnet and a current generator. The current generator is electrically connected to the electromagnet and supplies current to the electromagnet. The current supplied by the current generator is configured to make the electromagnet form a dynamic magnetic field so that the electromagnet drives the first magnetic element to reciprocate relative to the power generation unit. The power generation unit includes a housing, a first electrode plate, a second electrode plate, and an elastic element. The elastic element is connected between the first electrode plate and the second electrode plate, and the side of the second electrode plate facing the first electrode plate has a piezoelectric layer. When the first magnetic component reciprocates relative to the power generation unit, the first magnetic component abuts against or separates from the first electrode plate, and the elastic component exerts alternating pressure on the piezoelectric layer to generate alternating current between the first electrode plate and the second electrode plate. The power generation unit further includes a second coil, and the housing includes an outer shell and an inner shell, with a cavity between the inner shell and the outer shell, and the second coil is disposed in the cavity.

2. The power generation device according to claim 1, characterized in that, The electromagnet includes an iron core and a first coil, the first coil being wound around the iron core, the current generator being electrically connected to the first coil, the magnetic field of the first coil magnetizing the iron core, and the end of the iron core facing the first magnetic element.

3. The power generation device according to claim 2, characterized in that, The magnetic field axis of the iron core is parallel to the magnetic field axis of the first magnetic component.

4. The power generation device according to any one of claims 1-3, characterized in that, The current generator is a DC generator, which intermittently supplies DC current to the electromagnet so that the electromagnet intermittently forms a magnetic field.

5. The power generation device according to claim 4, characterized in that, When the DC generator supplies DC current to the electromagnet, the polarity of the end of the electromagnet facing the first magnetic element is the same as the polarity of the end of the first magnetic element facing the electromagnet.

6. The power generation device according to any one of claims 1-3, characterized in that, The current generator is an AC generator, which supplies alternating current to the electromagnet so that the electromagnet forms a magnetic field with alternating polarity.

7. The power generation device according to claim 6, characterized in that, The alternating current supplied by the AC generator to the electromagnet has a square wave waveform; or, the alternating current supplied by the AC generator to the electromagnet has a sine wave waveform.

8. The power generation device according to claim 6, characterized in that, The frequency of the alternating current supplied by the AC generator to the electromagnet is 20Hz-20000Hz.

9. The power generation device according to any one of claims 1-3, characterized in that, The power generation unit further includes multiple electrode plates. The first magnetic element and the multiple electrode plates are disposed inside the housing. Each electrode plate includes a metal layer and a first friction layer. The outer wall of the first magnetic element is provided with a second friction layer. The first magnetic element reciprocates between different electrode plates, and the second friction layer rubs against the first friction layer of different electrode plates to generate alternating current between the metal layers of the multiple electrode plates.

10. The power generation device according to claim 9, characterized in that, When the first magnetic component reciprocates relative to the power generation unit, it cuts the magnetic lines of force of the second coil, thereby causing the second coil to generate alternating current.

11. The power generation device according to any one of claims 1-3, characterized in that, The driving component further includes a first detection unit configured to detect the strength of the magnetic field interaction between the first magnetic element and the electromagnet.

12. The power generation device according to any one of claims 1-3, characterized in that, The driving component further includes a second detection unit configured to detect external environmental information of the driving component in order to start the driving component based on the detected environmental information.

13. A battery system, characterized in that, The device includes a battery and a power generation apparatus according to any one of claims 1-12, wherein a power generation component in the power generation apparatus is electrically connected to the battery and charges the battery under the drive of a drive component in the power generation apparatus.

14. The battery system according to claim 13, characterized in that, The battery system also includes a rectifier module, a battery management module, and an alarm module. The rectifier module and the battery management module are connected between the power generation component and the battery. The alarm module is connected to the battery management module and is configured to issue a prompt based on the battery's circuitry.

15. An electronic device, characterized in that, The device body and the battery system as described in claim 13 or 14, wherein the battery and power generation components of the battery system are disposed on the device body, the device body is disposed inside the human body, and the drive components of the battery system are located outside the human body.

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