Electromagnetic shock wave generator

Abstract

The application provides an electromagnetic shock wave generator, comprising an electromagnetic generating assembly and an electromagnetic induction assembly, the electromagnetic generating assembly is arranged on one side of the electromagnetic induction assembly; wherein the electromagnetic generating assembly comprises a coil and a conductive piece connected with each other, the electromagnetic induction assembly comprises a clamping piece and a metal diaphragm fixed at least partially to the periphery of the clamping piece, the metal diaphragm is arranged on one side of the coil and can vibrate under the action of the coil; wherein a metal sheet is arranged on the side of the metal diaphragm away from the coil, the radial dimension of the metal sheet is smaller than the radial dimension of the metal diaphragm, and the metal sheet is arranged at the middle part of the metal diaphragm. The electromagnetic shock wave generator provided by the application can generate shock waves, and the metal diaphragm generating the shock waves will not be damaged due to external microjet impact and other factors, meanwhile, the shock waves will not be excessively lost, the service life is prolonged and the functionality is not reduced.

Description

Technical Field

[0001] This application relates to the technical field of shock wave generators, specifically to an electromagnetic shock wave generator. Background Technology

[0002] Shock wave generators are commonly used in the medical field, such as for the treatment of extracorporeal shock wave lithotripsy, musculoskeletal disorders, erectile dysfunction, and gynecological diseases. Shock wave generators are often used in liquid environments. When an electromagnetic shock wave generator rapidly vibrates its diaphragm in a liquid to produce shock waves, the continuous interaction between the shock wave and the liquid causes vaporization, resulting in bubbles. When the shock wave acts on these bubbles, causing them to collapse, microjets are generated. These microjets can easily act on the vibrating diaphragm of the shock wave generator, leading to cavitation erosion and ultimately shortening the lifespan of the shock wave generator. Summary of the Invention

[0003] This application provides an electromagnetic shock wave generator, including an electromagnetic generating component and an electromagnetic induction component. The electromagnetic generating component is disposed on one side of the electromagnetic induction component. The electromagnetic generating component includes a coil and a conductive element connected to each other. The electromagnetic induction component includes a clamping element and a metal diaphragm at least partially fixed to the clamping element. The metal diaphragm is disposed on one side of the coil and can vibrate under the action of the coil. A metal sheet is provided on the side of the metal diaphragm away from the coil. The radial dimension of the metal sheet is smaller than the radial dimension of the metal diaphragm, and the metal sheet is disposed in the middle of the metal diaphragm.

[0004] Optionally, a metal sheet is disposed in the middle of the metal diaphragm.

[0005] Optionally, a conductive element is provided between the metal sheet and the metal diaphragm, and the metal sheet is flexibly connected to the metal diaphragm through the conductive element.

[0006] Optionally, a metal sheet is embedded in the middle of the metal diaphragm.

[0007] Alternatively, the metal sheet and the metal film may have the same shape.

[0008] Optionally, the metal diaphragm is an aluminum diaphragm or a copper diaphragm, and the metal sheet is a stainless steel sheet.

[0009] Optionally, an insulating sheet is provided between the metal diaphragm and the coil.

[0010] Optionally, the clamping member includes a first clamping member and a second clamping member. A first through hole is formed in the middle of the first clamping member, and a second through hole is formed in the middle of the second clamping member. The radial dimensions of both the first and second through holes are smaller than the radial dimension of the metal diaphragm, and the radial dimension of the second through hole is larger than the radial dimension of the insulating sheet. The first clamping member is connected to the second clamping member, and the metal diaphragm is clamped between the first and second clamping members, with the periphery of the metal diaphragm fixed between the first and second clamping members.

[0011] Optionally, the first clamping member is recessed inward on one side facing the second clamping member to form a groove, and the second clamping member is at least partially accommodated in the groove so that the first clamping member is sleeved on the second clamping member.

[0012] Optionally, the electromagnetic generating assembly also includes a fixing member, with the conductive element fixed to one side of the fixing member and the coil located on the other side of the fixing member.

[0013] Optionally, the coil has an extension at one end of its middle and / or periphery, the fixing member has a through hole, the conductive member has a conductive part, and the extension passes through the through hole and is connected to the conductive part.

[0014] Optionally, the electromagnetic shock wave generator also includes a support member, one end of which abuts against the side of the fixing member where the conductive element is provided, and the other end of the support member is connected to the outside so that the coil abuts against the insulating sheet.

[0015] The electromagnetic shock wave generator provided in this application utilizes a conductive component connected to a coil to allow current to flow through the coil, thereby inducing a reverse current in a metal diaphragm located on one side of the coil. The magnetic fields formed by the two currents repel each other, causing the metal diaphragm to move rapidly. This allows an electromagnetic induction component located on one side of the electromagnetic generation component to generate a shock wave. Furthermore, the electromagnetic shock wave generator uses a clamping component to fix at least a portion of the periphery of the metal diaphragm, concentrating the rapid movement of the metal diaphragm in the center. This prevents the metal diaphragm from being adversely affected by factors such as the impact of microjet flow generated by bubble bursting, thus preventing problems such as cavitation erosion. The metal diaphragm's radial dimension is smaller than that of the metal diaphragm, which avoids excessive loss of the shock wave generated by the metal diaphragm. At the same time, the metal diaphragm can also generate a reverse induced current and move rapidly under the action of the coil, thus generating a shock wave like the metal diaphragm, further compensating for the loss of the shock wave generated by the metal diaphragm. This extends the service life of the electromagnetic shock wave generator without reducing its functionality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an electromagnetic shock wave generator according to an embodiment of this application;

[0018] Figure 2 yes Figure 1 An exploded structural diagram of the electromagnetic shock wave generator in the embodiment;

[0019] Figure 3 yes Figure 1 An exploded view of the electromagnetic induction component in the embodiment;

[0020] Figure 4 yes Figure 1 An exploded view of the electromagnetic generation component in the embodiment;

[0021] Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure of the electromagnetic shock wave generator in the embodiment, cut along section line AA.

[0022] Figure 6 This is a three-dimensional structural schematic diagram of an electromagnetic shock wave generator according to another embodiment of this application.

[0023] Figure Descriptions: 10. Electromagnetic shock wave generator; 100. Electromagnetic induction component; 101. Clamping member; 110. First clamping member; 1101. First through hole; 1102. Groove; 120. Second clamping member; 1201. Second through hole; 102. Metal diaphragm; 103. Metal sheet; 104. Conducting member; 200. Insulating sheet; 300. Electromagnetic generating component; 301. Coil; 310. Extension; 302. Conducting member; 320. Conducting part; 303. Fixing member; 330. Through hole; 400. Support member; 500. Housing. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the invention. Similarly, the following embodiments are only some, not all, embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] It should be noted that the terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0027] Currently, shock wave generators are commonly used in the medical field as components of extracorporeal shock wave therapy devices. Based on their operating principles, shock wave generators can be broadly classified into four types: electrohydraulic, pneumatic ballistic, electromagnetic, and piezoelectric ceramic. This application primarily uses an electromagnetic shock wave generator as an example for illustration. It is understood that at least some of the technical features in the embodiments of this application can also be applied to shock wave generators based on other principles.

[0028] Please see Figures 1 to 2 , Figure 1 This is a three-dimensional structural schematic diagram of the electromagnetic shock wave generator 10 according to one embodiment of this application. Figure 2 yes Figure 1 An exploded view of the electromagnetic shock wave generator 10 in the embodiment.

[0029] Optionally, the electromagnetic shock wave generator 10 in this embodiment includes, but is not limited to, an electromagnetic induction component 100 and an electromagnetic generation component 300. The electromagnetic induction component 100 can interact with the electromagnetic generation component 300 and generate shock waves in the liquid. The electromagnetic generation component 300 can conduct current to generate a magnetic field, and the electromagnetic induction component 100 can generate a reverse induced current and an induced magnetic field. The magnetic field and the reaction magnetic field can repel each other to make the device in the electromagnetic induction component 100 move rapidly in the liquid to generate shock waves.

[0030] Optionally, an insulating sheet 200 may be provided between the electromagnetic induction component 100 and the electromagnetic generating component 300. The insulating sheet 200 may be made of insulating material. The insulating sheet 200 provided between the electromagnetic induction component 100 and the electromagnetic generating component 300 can prevent short circuits between the electromagnetic induction component 100 and the electromagnetic generating component 300, thereby preventing damage to the electromagnetic shock wave generator 10. At the same time, the sheet-like structure of the insulating sheet 200 can minimize the distance between the electromagnetic induction component 100 and the electromagnetic generating component 300. For example, the thickness of the insulating sheet 200 can be in the range of 0.05 to 0.3 mm. In addition, the insulating sheet 200 can also be made of a material with good pressure resistance to avoid short circuits caused by damage to the insulating sheet 200. For example, the insulating sheet 200 can be a polyimide film that has both insulation and excellent pressure resistance.

[0031] Optionally, the electromagnetic induction component 100 includes, but is not limited to, a clamping member 101 and a metal diaphragm 102, and the electromagnetic generation component 300 includes, but is not limited to, a coil 301 and a conductive member 302. The metal diaphragm 102 can be a thin metal sheet with good elasticity and conductivity, such as an aluminum sheet or a copper sheet. The coil 301 can be a metal coil with good conductivity, such as a copper coil or an aluminum coil. The metal diaphragm 102 can be fixed to the clamping member 101, and the coil 301 can be connected to the conductive member 302 to conduct current. The metal diaphragm 102 can be disposed on one side of the coil 301, so that the metal diaphragm 102 can vibrate under the action of the coil 301. Specifically, in one embodiment of this application, a high-voltage current enters the coil 301 through the conductive element 302. According to Lenz's law, a reverse induced current is generated in the metal diaphragm 102. Further, the current in the coil 301 and the reverse induced current in the metal diaphragm 102 respectively form magnetic fields, and the two magnetic fields repel each other, thereby causing the metal diaphragm 102 to move rapidly. Optionally, the metal diaphragm 102 can be placed in or near a liquid, such as water or coolant. In this case, the rapidly moving metal diaphragm 102 can generate shock waves in the liquid. Further, the high-voltage current of the conductive element 302 can be disconnected, causing an induced current in the metal diaphragm 102 to be generated in the same direction as the coil 301. At this time, the magnetic fields formed by the two currents attract each other, thereby causing the metal diaphragm 102 to return to its original position. As the conductive element 302 repeatedly switches on and off the current, the metal diaphragm 102 can repeatedly move rapidly and return to its original position. In other words, the metal diaphragm 102 can vibrate rapidly to generate shock waves in the liquid.

[0032] Optionally, the insulating sheet 200 can be disposed between the metal diaphragm 102 and the coil 301 to prevent the current flowing in the coil 301 from being conducted to the metal diaphragm 102, so as to ensure the functionality and safety of the electromagnetic shock wave generator 10.

[0033] Further research by the applicant revealed that when the metal diaphragm 102 vibrates rapidly in the liquid to generate shock waves, it is easy to generate a large number of bubbles. The microjet generated by the bursting of the bubbles can easily cause cavitation erosion of the metal diaphragm 102, thereby reducing the service life of the electromagnetic shock wave generator 10.

[0034] Optionally, the electromagnetic induction component 100 also includes a metal sheet 103. The metal sheet 103 can be a thin sheet of high-hardness metal, such as stainless steel, covering the metal diaphragm 102. The metal sheet 103 can prevent air bubbles from adhering to the metal diaphragm 102 and prevent the microjet generated by the bursting of air bubbles from impacting the metal diaphragm 102, thereby protecting the metal diaphragm 102 from cavitation erosion. At the same time, the metal sheet 103 can also conduct electricity. Therefore, when the coil 301 is energized, the metal sheet 103 can vibrate and generate shock waves according to Lenz's law, just like the metal diaphragm 102, to compensate for part of the shock wave intensity loss of the electromagnetic shock wave generator 10 caused by the metal sheet 103 covering the metal diaphragm 102.

[0035] Alternatively, the metal sheet 103 can also be made of a material with good conductivity, such as copper or aluminum, to increase the vibration amplitude of the metal sheet 103, thereby increasing the intensity of the shock wave generated by the metal sheet 103, so as to better compensate for the loss of shock wave intensity of the electromagnetic shock wave generator 10 caused by the metal sheet 103 fixed to the metal diaphragm 102.

[0036] Optionally, the metal sheet 103 can be fixed to the metal diaphragm 102 by bonding, welding, or other methods, or it can be embedded in the metal diaphragm 102 to reduce some or all of the increase in thickness of the metal diaphragm 102 caused by the metal sheet 103, thereby avoiding damage to the shock waves generated by the electromagnetic shock wave generator 10. Meanwhile, the metal diaphragm 102 can be made of copper or aluminum alloy with a thickness of 0.2 to 0.4 mm and a diameter of 40 to 60 mm, so that the electromagnetic shock wave generator 10 can generate ideal therapeutic shock waves.

[0037] Optionally, the metal diaphragm 102 and the metal sheet 103 have the same shape. For example, the metal diaphragm 102 can be a circular sheet, while the metal sheet 103 is a circular sheet with a diameter smaller than that of the metal diaphragm 102. Since the waveform of the shock wave generated by the metal diaphragm 102 and the metal sheet 103 depends on their shape, the metal diaphragm 102 and the metal sheet 103 with the same shape can generate shock waves with the same waveform, thereby better utilizing the reinforcing effect of the metal sheet 103 and more effectively reducing the intensity loss of the shock wave generated by the electromagnetic shock wave generator 10, or even not causing any intensity loss of the shock wave generated by the electromagnetic shock wave generator 10.

[0038] Optionally, the electromagnetic generating assembly 300 also includes a fixing member 303, and the coil 301 can be disposed on the fixing member 303 and fixed relative to the fixing member 303 to prevent the coil 301 from moving when energized. The conductive member 302 can be fixed on one side of the fixing member 303, and the coil 301 can be disposed on the other side of the fixing member 303.

[0039] Optionally, the conductive element 302 can be fixed to the fixing element 303 and connected to the coil 301. The fixing element 303 can be a material with good insulation, such as ceramic or fiberglass board. The coil 301 and the conductive element 302 can be materials with good conductivity, such as copper or aluminum. The coil 301 can be a copper coil with a wire diameter of 0.5 to 1.2 mm and 12 to 25 turns, so that when the coil 301 is energized, it can interact with the metal diaphragm 102 to generate an ideal shock wave.

[0040] Please refer to the following: Figure 3 , Figure 3 yes Figure 1 An exploded view of the electromagnetic induction component 100 in the embodiment.

[0041] Optionally, the clamping member 101 may include a first clamping member 110 and a second clamping member 120, which can clamp the metal diaphragm 102 between them. The first clamping member 110 may have a first through hole 1101 in its center, and the second clamping member 120 may have a second through hole 1201. The radial dimensions of both the first through hole 1101 and the second through hole 1201 may be smaller than the radial dimension of the metal diaphragm 102, so that the first clamping member 110 and the second clamping member 120 can fix the periphery of the metal diaphragm 102 between them. Simultaneously, the inwardly extending area of ​​the periphery of the metal diaphragm 102 is driven by the corresponding first through hole 1101 and second through hole 1201, thereby enabling the metal diaphragm 102 to vibrate and generate shock waves, with the center of the metal diaphragm 102 exhibiting the greatest displacement. For example, the metal diaphragm 102 can be a circular piece, and the first clamping member 110 and the second clamping member 120 can be annular pieces that match the metal diaphragm 102. The first clamping member 110 and the second clamping member 120 clamp the metal diaphragm 102 between them and make the center of the three parts in the same axis. Therefore, when the metal diaphragm 102 vibrates, the vibration amplitude in its middle part is the largest. As a result, the bubbles that may be generated when the electromagnetic shock wave generator 10 is working are mainly concentrated in the middle part of the metal diaphragm 102, that is, the middle part of the metal diaphragm 102 is most prone to cavitation.

[0042] Based on this, optionally, the metal sheet 103 can be disposed in the middle of the metal diaphragm 102 to prevent the microjet generated by the bursting of bubbles from damaging the metal diaphragm 102. At the same time, the radial dimension of the metal sheet 103 can be smaller than the first through hole 1101. For example, the metal sheet 103 can be disposed only in the middle area of ​​the metal diaphragm 102 where the vibration amplitude is the largest, so as to minimize the reduction of the vibration amplitude of the metal diaphragm 102.

[0043] Optionally, a conductive element 104 may be provided between the metal sheet 103 and the metal diaphragm 102. The conductive element 104 may be a flexible material to allow the metal sheet 103 to be flexibly connected to the conductive element 104, thereby preventing deformation of the metal diaphragm 102 due to stress concentration and further reducing the intensity loss of the shock wave caused by the metal sheet 103. The conductive element 104 may also be a heat-resistant material to prevent the high temperature generated during the operation of the electromagnetic shock wave generator 10 from melting the conductive element 104, thus affecting the function of the electromagnetic shock wave generator 10. For example, the metal sheet 103 may be an austenitic stainless steel sheet such as SUS304 or SUS316 with a thickness of 0.2 to 0.4 mm and a diameter of 10 to 20 mm, and the conductive element 104 may be flexible silicone. The metal sheet 103 is bonded to the metal diaphragm 102 through the conductive element 104 to protect the metal diaphragm 102 from damage and reduce the intensity loss of the shock wave generated by the electromagnetic shock wave generator 10.

[0044] In this embodiment, the clamping member 101 fixes the periphery of the metal diaphragm 102, which enables the center of the metal diaphragm 102 to generate the greatest vibration displacement. Therefore, during the generation of the shock wave, the micro-jet generated by the bursting of bubbles causes cavitation in the metal diaphragm 102, which is mainly concentrated in the center of the metal diaphragm 102. Thus, the electromagnetic shock wave generator 10 provided in this embodiment can effectively prevent cavitation in the metal diaphragm 102 during the generation of the shock wave through the clamping member 101 and the metal sheet 103 covering the center of the metal diaphragm 102, without hindering the generation effect of the shock wave.

[0045] Please refer to the following: Figure 4 , Figure 4 yes Figure 1 An exploded view of the electromagnetic generation component 300 in the embodiment.

[0046] Optionally, the fixing member 303 may be provided with a through hole 330, through which the coil 301 and the conductive member 302 respectively provided on both sides of the fixing member 303 can be connected. For example, the fixing member 303 may be a disc, and the end of the coil 301 may extend to form an extension 310. Of course, the extension 310 may also be a component provided at the end of the coil 301. The through hole 330 may be a hole that passes through the disc and matches the extension 310. The extension 310 can pass through the through hole 330 and form a conductive connection with the conductive member 302 fixed on the other side of the fixing member 303, so that the high voltage pulse current can flow to the coil 301 through the conductive member 302.

[0047] Optionally, the conductive element 302 can be fixed to the side of the fixing element 303 away from the coil 301 by means of snap-fit, welding, threaded connection, etc. The conductive element 302 can be provided with a conductive part 320, and can be fixedly connected to the conductive part 320 through the extension part 310 of the through hole 330, so that the coil 301 and the conductive element 302 are fixed relative to each other on both sides of the fixing element 303. For example, the conductive part 320 can be a groove formed by the inward indentation of the middle part of the conductive element 302, and the end of the extension part 310 can be wound into a ring and sleeved on the conductive part 320. The conductive part 320 and the extension part 310 can match, so that the coil 301 can be fixed to the conductive element 302 and then fixed to the side of the fixing element 303 away from the conductive element 302, and at the same time, the coil 301 can form a conductive connection with the conductive element 302. Of course, the conductive part 320 can also be a groove formed by the outward protrusion of the conductive element 302, or other shapes and structures that can be snapped with the extension part 310, which is not limited here.

[0048] Optionally, the extension 310 may be provided in the middle and / or periphery of the coil 301. The extension 310 provided in the periphery of the coil 301 may be formed by extending from the outermost end of the coil 301, and the extension 310 provided in the middle of the coil 301 may be formed by extending from the innermost end of the coil 301. The end of the coil 301 may be bent to form the extension 310 and connected to the conductive part 320 through the through hole 330.

[0049] Furthermore, please refer to the following: Figure 5 , Figure 5 yes Figure 1 A schematic diagram of the cross-sectional structure of the electromagnetic shock wave generator 10 in the embodiment, cut along section line AA.

[0050] Optionally, the coil 301 has an extension 310 at its periphery and center, and the fixing member 303 has a through hole 330 that matches the two extensions 310. The fixing member 303 has two conductive members 302 on the side away from the coil 301, and the conductive members 302 have conductive parts 320 that match the extensions 310. The two extensions 310 pass through the fixing member 303 through the through hole 330 and are wound around the conductive parts 320, so that the fixing member 303 has a coil 301 and conductive members 302 that are relatively fixed and electrically connected on both sides.

[0051] Optionally, the coil 301 may be covered with an insulating sheet 200, and a metal diaphragm 102 may be provided on the side of the insulating sheet 200 away from the coil 301. The metal diaphragm 102, the insulating sheet 200 and the coil 301 may be stacked to increase the intensity of the shock wave generated by the electromagnetic shock wave generator 10, while avoiding a short circuit between the metal diaphragm 102 and the coil 301.

[0052] Optionally, the metal diaphragm 102 is clamped between the first clamping member 110 and the second clamping member 120. The side of the first clamping member 110 facing the second clamping member 120 can be partially recessed to form a groove 1102. The second clamping member 120 can be partially or completely accommodated in the groove 1102, so that the first clamping member 110 is sleeved on the second clamping member 120.

[0053] Optionally, the first clamping member 110 and the second clamping member 120 may be provided with threads for mating threaded connection on opposite sides. The second clamping member 120, which is accommodated in the groove 1102, may be threadedly connected to the first clamping member 110 to fix the periphery of the metal diaphragm 102 between the first clamping member 110 and the second clamping member 120.

[0054] Optionally, the second clamping member 120 may be interference-fitted between the first clamping member 110 and the fixing member 303 so that the clamping member 101 is fixedly connected to the fixing member 303; the side wall of the fixing member 303 may also be provided with a thread that mates with the second clamping member 120, so that the clamping member 101 can be sleeved on the fixing member 303 and threadedly connected to the fixing member 303.

[0055] Of course, the first clamping member 110, the second clamping member 120 and the fixing member 303 can also be fixedly connected to each other by means of bonding, welding, snap-fitting or driving in pins or screws from the side, and no specific limitation is made here.

[0056] It should be noted that the clamping member 101 in this embodiment is not limited to this embodiment. For example, the clamping member 101 can be disposed on the side of the metal diaphragm 102 facing the fixing member 303 and fixed to all or part of the periphery of the metal diaphragm 102 by welding or other means; or the clamping member 101 can also be disposed on the side of the metal diaphragm 102 away from the fixing member 303 and fixed to at least part of the periphery of the metal diaphragm 102 by welding or other means, and the clamping member 101 can be fixedly connected to the fixing member 303. In addition, the shape and structure of the first clamping member 110 and the second clamping member 120 are not limited to those of this embodiment, as long as they can fix at least part of the periphery of the metal diaphragm 102.

[0057] Optionally, the metal sheet 103 disposed in the middle of the metal diaphragm 102 can cover the metal diaphragm 102, be embedded in the metal diaphragm 102, or be integrally formed with the metal diaphragm 102. The metal sheet 103 can be a sheet-like material such as stainless steel with high hardness, or a sheet-like material such as aluminum, copper, silver, or gold with good conductivity, and can be covered or embedded in the metal diaphragm 102; the metal sheet 103 can also be a metal of the same material as the metal diaphragm 102, or the metal sheet 103 can be a part of the middle of the metal diaphragm 102, for example, the middle of the metal diaphragm 102 can be thickened to form a metal sheet 103 to prevent cavitation corrosion.

[0058] It should be noted that the fixed connection mentioned in the embodiments of this application can be one or more of the following connection methods: riveting, welding, bonding, bolting, keying, snap-fitting, etc., or it can be integrally formed. For those skilled in the art, they can determine which connection method to adopt based on the specific circumstances.

[0059] Please refer to the following: Figure 6 , Figure 6 This is a three-dimensional structural schematic diagram of the electromagnetic shock wave generator 10 in another embodiment of this application.

[0060] Optionally, the electromagnetic shock wave generator 10 may further include a support member 400. One end of the support member 400 may abut against the side of the fixing member 303 where the conductive element 302 is located, and the other end of the support member 400 may be connected to the outside. The support member 400 abutting against the fixing member 303 allows the coil 301 located on the other side of the fixing member 303 to abut against the insulating sheet 200, thereby reducing the distance between the coil 301 and the metal diaphragm 102. The support member 400 may be a spring or other device that provides support for the fixing member 303. The end of the support member 400 facing away from the fixing member 303 may be fixed to the inside of an external structure, such as the housing 500 of the device housing the electromagnetic shock wave generator 10. Of course, the support member 400 may also be fixed in other positions to provide external pressure for the coil 301 to abut against the insulating sheet 200.

[0061] In the several embodiments provided in this application, it should be understood that the disclosed apparatus or device can be implemented in other ways. For example, the embodiments described above are merely illustrative, and the division of the units described above is only a logical functional division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed.

[0062] It should be noted that the terms "first," "second," and "third" in the embodiments of this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0063] Furthermore, all directional indicators (such as up, down, left, right, front, back, inside, outside, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0064] In summary, the electromagnetic shock wave generator 10 provided in this application embodiment can utilize the cooperative structure of the metal diaphragm 102 and the coil 301 to cause the metal diaphragm 102 to vibrate rapidly, thereby generating shock waves in the liquid. Simultaneously, the metal plate 103 located in the middle of the metal diaphragm 102 can protect it from cavitation and other problems, thus extending the service life of the electromagnetic shock wave generator 10. Furthermore, the metal plate 103 can vibrate synchronously with the metal diaphragm 102 to generate shock waves of the same waveform, thereby reducing or even eliminating the shock wave intensity loss of the electromagnetic shock wave generator 10. Thus, the service life of the electromagnetic shock wave generator 10 is extended without compromising its functionality. Of course, the application environment of this embodiment is not limited to a liquid environment; for example, the electromagnetic shock wave generator 10 can be used as a component of an atomizer, which is not limited here.

[0065] 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, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two devices. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0066] The above description is only a part of the embodiments of the present invention and does not limit the scope of protection of the present invention. Any equivalent device or equivalent process transformation made based on the content of the present invention specification and drawings, or direct or indirect application in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An electromagnetic shock wave generator, characterized in that, include: An electromagnetic generation component and an electromagnetic induction component, wherein the electromagnetic induction component is disposed on one side of the electromagnetic generation component; The electromagnetic generating component includes a coil and a conductive element, the coil being connected to the conductive element; the electromagnetic induction component includes a metal diaphragm and a clamping element, at least a portion of the periphery of the metal diaphragm being fixed to the clamping element; the metal diaphragm is disposed on one side of the coil, and the metal diaphragm can vibrate under the action of the coil; The metal diaphragm has a metal sheet on the side opposite to the coil. The radial dimension of the metal sheet is smaller than that of the metal diaphragm, and the metal sheet is located in the middle of the metal diaphragm. The metal diaphragm and the metal sheet have the same shape. A conductive element is provided between the metal sheet and the metal diaphragm, and the metal sheet is flexibly connected to the metal diaphragm by the conductive element.

2. The electromagnetic shock wave generator according to claim 1, characterized in that, The metal sheet is disposed over the middle of the metal membrane.

3. The electromagnetic shock wave generator according to claim 1, characterized in that, The metal sheet is embedded in the middle of the metal diaphragm.

4. The electromagnetic shock wave generator according to claim 1, characterized in that, The metal diaphragm is an aluminum diaphragm or a copper diaphragm, and the metal sheet is a stainless steel sheet.

5. The electromagnetic shock wave generator according to claim 1, characterized in that, An insulating sheet is provided between the metal diaphragm and the coil.

6. The electromagnetic shock wave generator according to claim 5, characterized in that, The clamping member includes a first clamping member and a second clamping member. A first through hole is formed in the middle of the first clamping member, and a second through hole is formed in the middle of the second clamping member. The radial dimensions of both the first through hole and the second through hole are smaller than the radial dimension of the metal film, and the radial dimension of the second through hole is larger than the radial dimension of the insulating sheet. The first clamping member is connected to the second clamping member, the metal diaphragm is clamped between the first clamping member and the second clamping member, and the periphery of the metal diaphragm is fixed between the first clamping member and the second clamping member.

7. The electromagnetic shock wave generator according to claim 6, characterized in that, The first clamping member is recessed inward on one side facing the second clamping member to form a groove, and the second clamping member is at least partially accommodated in the groove so that the first clamping member is sleeved on the second clamping member.

8. The electromagnetic shock wave generator according to claim 5, characterized in that, The electromagnetic generating assembly also includes a fixing member, the conductive member is fixed to one side of the fixing member, and the coil is located on the other side of the fixing member.

9. The electromagnetic shock wave generator according to claim 8, characterized in that, The coil has an extension at one end of its middle and / or periphery, the fixing member has a through hole, the conductive member has a conductive part, and the extension passes through the through hole and is connected to the conductive part.

10. The electromagnetic shock wave generator according to claim 8, characterized in that, The device includes a support member, one end of which abuts against the side of the fixing member where the conductive element is located, and the other end of the support member is connected to the outside so that the coil abuts against the insulating sheet.

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