A multilayer composite structure for an ultrasonic transducer

Abstract

The application belongs to the technical field of ultrasonic waves, and discloses a multilayer composite structure of an ultrasonic transducer. The structure body comprises a transducer, a multilayer structure and a heat dissipation structure. The transducer is composed of upper and lower flanges, a clamping ring, a sleeve, a piezoelectric ceramic crystal and a gasket to form a core vibration unit; the multilayer structure comprises a reinforcing layer, a heat dissipation protection layer and a sound insulation layer, the overall mechanical strength is improved through the reinforcing layer, the heat dissipation protection layer is combined with the sound insulation layer to effectively reduce the working noise and enhance the heat conduction; the heat dissipation structure is combined with a spring heat dissipation pipe and a heat dissipation fan to significantly improve the heat dissipation efficiency and ensure the long-time stable operation of the transducer. The cooperative effect of each layer structure is realized through the optimized design, and the problems of insufficient heat dissipation, poor structural stability and excessive noise of the traditional transducer are solved. The utility model has the advantages of compact structure, efficient heat dissipation, stable operation and low noise, and is suitable for the application scene of high-power ultrasonic equipment.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic technology, and in particular to a multi-layer composite structure for an ultrasonic transducer. Background Technology

[0002] The function of an ultrasonic transducer is to convert input electrical power into mechanical power (i.e., ultrasonic waves) and then transmit it, while consuming very little power itself. As the core component of ultrasonic technology, it is widely used in high-power scenarios such as medical, industrial testing, and cleaning equipment.

[0003] Traditional ultrasonic transducers typically consist of a piezoelectric ceramic crystal, a flange, and a simple support structure. Their heat dissipation design often relies on a single heat sink or natural convection, leading to severe heat accumulation during high-power operation, which affects the stability and lifespan of the equipment. In addition, existing structures lack effective mechanical reinforcement measures, and long-term vibration can easily cause components to loosen or suffer fatigue damage, further reducing reliability. At the same time, traditional transducers generate significant mechanical vibration and high-frequency noise during operation, especially under high-power conditions, where the noise problem is even more prominent, not only deteriorating the operating environment but also potentially posing health hazards to operators. Although some improved designs attempt to alleviate the above problems by adding sound insulation layers or optimizing the heat dissipation structure, these solutions often have limited effectiveness due to loose structures and the separation of heat dissipation and sound insulation functions.

[0004] Therefore, this invention proposes a multi-layer composite structure for an ultrasonic transducer to solve the above problems. Utility Model Content

[0005] To address the aforementioned problems, this invention provides a multi-layer composite structure for an ultrasonic transducer.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a multi-layer composite structure for an ultrasonic transducer, comprising a main body including a transducer, a multi-layer structure on the outside of the transducer, and a heat dissipation structure below the multi-layer structure; The transducer includes an upper flange, a gasket is provided below the upper flange, a clamping ring is provided on the outside of the gasket, a sleeve is movably connected below the clamping ring, a piezoelectric ceramic crystal is provided inside the sleeve, and a lower flange is provided below the piezoelectric ceramic crystal. The multi-layer structure includes a reinforcing layer, a heat dissipation and protection layer on the inner side of the reinforcing layer, and a sound insulation layer on the inner side of the heat dissipation and protection layer. The heat dissipation structure includes a spring-loaded heat pipe, and a cooling fan is movably connected below the spring-loaded heat pipe.

[0007] By adopting the above technical solution, the transducer, as a vibration unit, has an outer multi-layer structure that enhances mechanical strength, heat conduction, and noise reduction through a reinforcement layer, a heat dissipation protection layer, and a sound insulation layer, respectively. In the heat dissipation structure below, the spring heat pipe and the fan work together to improve heat dissipation efficiency, thus solving the problems of insufficient heat dissipation, poor stability, and high noise of traditional transducers.

[0008] Furthermore, a clamping ring is provided below the upper flange, a gasket is provided inside the clamping ring, and a piezoelectric ceramic crystal is provided inside the gasket.

[0009] By adopting the above technical solution, the spatial layout relationship of the internal components of the transducer is clarified. The structural hierarchy design ensures the stable fixation of the piezoelectric ceramic crystal and the efficient transmission of vibration, thereby improving the reliability and performance of the transducer.

[0010] Furthermore, a sleeve is provided on the outside of the spring heat dissipation tube, a lower flange is movably installed below the sleeve, and a cooling fan is movably connected below the lower flange.

[0011] By adopting the above technical solution, the hierarchical connection relationship of the spring heat dissipation tube, sleeve, lower flange and cooling fan in the heat dissipation structure is defined, and the mechanical layout of the heat dissipation components is clarified through the movable installation design, so as to enhance the adjustability and heat conduction efficiency of the heat dissipation structure.

[0012] Furthermore, the reinforcing layer is made of a metallic thermally conductive material, and the heat dissipation protective layer is made of a honeycomb thermally conductive material, which is combined with the sound insulation layer to reduce operating noise and enhance heat conduction.

[0013] By adopting the above technical solutions, this section clarifies the material properties and synergistic effects of the reinforcement layer, heat dissipation protection layer, and sound insulation layer, and specifically explains the technical solutions of multi-layer composite structures in terms of improving mechanical strength, reducing working noise, and optimizing heat dissipation performance.

[0014] Furthermore, the sleeve and the clamping ring are connected by a thread, and the vibration frequency of the piezoelectric ceramic crystal is adjusted by the preload.

[0015] By adopting the above technical solution, a design is described in which the sleeve and clamping ring are connected by threads and the vibration frequency of the piezoelectric ceramic crystal is adjusted by using preload. Its function is to achieve precise control of the vibration characteristics of the core component of the transducer through the adjustability of the mechanical structure, thereby optimizing performance, improving stability, and solving the problem of difficult frequency adjustment of traditional transducers.

[0016] Furthermore, the sound insulation layer wraps around the spring heat dissipation tube, and the sound insulation layer is a sound-insulating and heat-conducting material.

[0017] By adopting the above technical solution, the sound insulation layer made of sound insulation and heat conduction material is wrapped around the spring heat dissipation tube, which not only suppresses the noise of equipment operation but also enhances the heat conduction efficiency, thus achieving synergistic optimization of noise reduction and heat dissipation.

[0018] Furthermore, the gasket is made of elastic silicone material, and its surface is provided with wavy grooves to enhance vibration transmission efficiency.

[0019] By adopting the above technical solution, and by using elastic silicone material for the gasket and designing a wavy groove, the vibration transmission path is optimized, energy loss is reduced, thereby improving the working efficiency and stability of the transducer.

[0020] Furthermore, the reinforcing layer and the heat dissipation protection layer are fixed together by an adhesive, which is a high-temperature resistant epoxy resin.

[0021] By adopting the above technical solution, it is shown that the reinforcement layer and the heat dissipation protection layer are fixed with high-temperature resistant epoxy resin adhesive to ensure the stability and durability of the multilayer structure in high-temperature working environment.

[0022] In summary, this utility model has the following beneficial effects: 1. In this application, the multi-layer composite structure of the ultrasonic transducer significantly improves overall performance by optimizing the synergistic effect of each layer component. Its reinforcing layer uses a metal thermally conductive material, combined with a honeycomb heat dissipation and protection layer and a sound insulation layer. This not only enhances mechanical strength but also effectively reduces operating noise and optimizes heat transfer efficiency through the encapsulation of sound-insulating and heat-conducting materials. 2. In this application, the heat dissipation structure integrates a spring-loaded heat pipe and a cooling fan, significantly improving heat dissipation capacity and ensuring stable operation of the transducer under high-power conditions for extended periods. The elastic silicone pad features a wave-shaped groove design on its surface, enhancing vibration transmission efficiency; the threaded connection between the sleeve and the clamping ring, combined with preload adjustment, enables precise control of the piezoelectric ceramic crystal's vibration frequency. 3. In this application, a high-temperature resistant epoxy resin adhesive is used to fix each layer of the structure, further enhancing the high-temperature resistance and overall stability. The overall design is compact, taking into account advantages such as efficient heat dissipation, stable operation, and low noise, making it particularly suitable for high-power ultrasonic equipment applications with stringent performance and reliability requirements. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model; Figure 3 This is a cross-sectional structural schematic diagram of an embodiment of the present utility model; Figure 4This is a schematic cross-sectional view of the transducer according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the piezoelectric ceramic crystal structure according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the piezoelectric ceramic crystal structure according to an embodiment of the present invention.

[0024] In the diagram: 1. Main body; 2. Transducer; 201. Upper flange; 202. Gasket; 203. Clamping ring; 204. Sleeve; 205. Piezoelectric ceramic crystal; 206. Lower flange; 3. Multi-layer structure; 301. Reinforcing layer; 302. Heat dissipation and protection layer; 303. Sound insulation layer; 4. Heat dissipation structure; 401. Spring heat dissipation tube; 402. Cooling fan. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-6 As shown in the figure, this application discloses a multi-layer composite structure of an ultrasonic transducer, including a main body 1 including a transducer 2, a multi-layer structure 3 on the outside of the transducer 2, and a heat dissipation structure 4 below the multi-layer structure 3. Transducer 2 includes an upper flange 201, a gasket 202 is provided below the upper flange 201, a clamping ring 203 is provided on the outside of the gasket 202, a sleeve 204 is movably connected below the clamping ring 203, a piezoelectric ceramic crystal 205 is provided inside the sleeve 204, and a lower flange 206 is provided below the piezoelectric ceramic crystal 205. The multi-layer structure 3 includes a reinforcing layer 301, a heat dissipation protection layer 302 is provided inside the reinforcing layer 301, and a sound insulation layer 303 is provided inside the heat dissipation protection layer 302. The heat dissipation structure 4 includes a spring heat pipe 401, and a cooling fan 402 is movably connected below the spring heat pipe 401.

[0027] The operating principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: The core of the main body 1 is the transducer 2, which internally consists of an upper flange 201, a lower flange 206, a clamping ring 203, a sleeve 204, a piezoelectric ceramic crystal 205, and an elastic gasket 202, forming a core vibration unit. Stable vibration and frequency controllability of the piezoelectric ceramic crystal 205 are ensured through mechanical fastening and pre-tightening force adjustment. The outer multi-layer structure 3 includes a reinforcing layer 301, a heat dissipation and protection layer 302, and a sound insulation layer 303. The reinforcing layer 301 uses a metal thermally conductive material to enhance mechanical strength; the heat dissipation and protection layer 302 enhances heat diffusion through a honeycomb thermally conductive structure and is combined with the sound insulation layer 303 to suppress noise while optimizing the heat conduction path. The bottom heat dissipation structure 4 integrates a spring-loaded heat pipe 401 and a cooling fan 402. The former increases the heat dissipation area through a spiral shape, while the latter actively dissipates heat; the two work together to significantly improve heat dissipation efficiency. Through the synergy of material properties and functions, each layer of the structure solves the problems of insufficient heat dissipation, structural damage and excessive noise of traditional transducers 2 in high-power scenarios, ensuring stable and efficient operation of the equipment.

[0028] like Figure 1-6 As shown in the embodiment of this application, a multi-layer composite structure of an ultrasonic transducer is disclosed, including a clamping ring 203 provided below the upper flange 201, a gasket 202 provided inside the clamping ring 203, and a piezoelectric ceramic crystal 205 provided inside the gasket 202.

[0029] The operating principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: This structure, through the hierarchical layout of the upper flange 201, clamping ring 203, and elastic gasket 202, achieves stable fixation of the piezoelectric ceramic crystal 205 and efficient vibration transmission. The clamping ring 203 ensures the crystal maintains structural stability during vibration by applying preload, while the elastic gasket 202 utilizes its wavy groove design to buffer vibration impact, reduce energy loss, and optimize the vibration transmission path. The overall design balances mechanical constraints and dynamic performance adjustment, ensuring the reliability and efficiency of the transducer 2 core unit under long-term high-load operation.

[0030] like Figure 1-4 As shown in the figure, this application discloses a multi-layer composite structure of an ultrasonic transducer, including a sleeve 204 on the outside of a spring heat sink 401, a lower flange 206 movably installed below the sleeve 204, and a cooling fan 402 movably connected below the lower flange 206.

[0031] The operating principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: the sleeve 204 on the outside of the spring heat dissipation tube 401 serves to fix and support it, and is movably connected to the lower flange 206, forming a mechanical transmission path for the heat dissipation structure; the cooling fan 402, movably installed below the lower flange 206, works in conjunction with the spring heat dissipation tube 401, accelerating the expulsion of heat from the spring heat dissipation tube 401 through forced convection. This design, through the rigid support and movable connection structure of the sleeve 204, ensures the stability of the heat dissipation component while allowing a certain degree of mechanical adaptability, avoiding stress concentration caused by vibration or thermal deformation, thereby improving heat dissipation efficiency and the durability of the overall structure, ensuring the stable operation of the transducer 2 under high-power conditions.

[0032] like Figure 1-3 As shown in the embodiment of this application, a multi-layer composite structure of an ultrasonic transducer is disclosed, including a reinforcing layer 301 made of a metal thermally conductive material, a heat dissipation and protection layer 302 made of a honeycomb thermally conductive material, and a sound insulation layer 303 combined with it to reduce operating noise and enhance heat conduction.

[0033] The operating principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: the reinforcing layer 301 is made of a metal thermally conductive material, which improves the overall mechanical strength while promoting heat conduction; the heat dissipation and protection layer 302 is made of a honeycomb thermally conductive material, which enhances heat dissipation efficiency through its high surface area structure, and is combined with the sound insulation layer 303 to reduce operating noise by utilizing the acoustic damping characteristics of the sound insulation material, while efficiently transferring internal heat to the external heat dissipation structure 4 through its thermal conductivity. The synergistic effect of the three components not only solves the stability problem caused by insufficient heat dissipation in the traditional transducer 2, but also achieves dual optimization of noise reduction and heat dissipation through the acoustic-thermal coupling design.

[0034] like Figure 1-4 As shown in the embodiment of this application, a multi-layer composite structure of an ultrasonic transducer is disclosed, including a sleeve 204 and a clamping ring 203 connected by threads, and the vibration frequency of the piezoelectric ceramic crystal 205 is adjusted by pre-tightening force.

[0035] The operating principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: the threaded connection between the sleeve 204 and the clamping ring 203 achieves precise control of the vibration frequency of the piezoelectric ceramic crystal 205 by adjusting the preload. The tightness of the threaded connection directly affects the mechanical tension applied to the piezoelectric ceramic crystal 205, changing its inherent vibration characteristics, thereby flexibly adapting to the frequency requirements of different application scenarios; at the same time, the optimization of the preload can enhance the structural stability of the crystal during vibration, reduce performance degradation or component damage caused by mechanical loosening or uneven stress, and ultimately improve the adjustment flexibility, operational reliability and service life of the transducer 2.

[0036] like Figure 1-4As shown in the embodiment of this application, a multi-layer composite structure of an ultrasonic transducer is disclosed, including a sound insulation layer 303 wrapping around a spring heat dissipation tube 401, and the sound insulation layer 303 is a sound insulation and heat conduction material.

[0037] The working principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: the sound insulation layer 303 wraps the spring heat sink 401 and is made of sound insulation and heat conduction material. Its function is to suppress mechanical vibration and high-frequency noise during equipment operation through sound insulation characteristics, and at the same time, to efficiently conduct internal heat to the spring heat sink 401 and heat dissipation structure 4 through heat conduction performance, so as to achieve synergistic optimization of noise reduction and heat dissipation, avoid the problem of traditional sound insulation materials hindering heat transfer, and thus improve the stability and heat dissipation efficiency of transducer 2 under high power conditions.

[0038] like Figure 1-4 As shown in the figure, this application discloses a multi-layer composite structure of an ultrasonic transducer, including a gasket 202 made of elastic silicone material, the surface of which is provided with a wavy groove to enhance vibration transmission efficiency.

[0039] The operating principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: the gasket 202 is made of elastic silicone material and designed with a wavy groove. Its elastic properties adapt to deformation during vibration, reducing energy loss. Simultaneously, the groove structure increases the contact area and optimizes the vibration transmission path, thereby improving the vibration transmission efficiency and stability of the transducer 2. This design takes into account the synergistic effect of material heat resistance and geometric shape, ensuring efficient energy conduction and mechanical reliability even under high-frequency vibration.

[0040] like Figure 1-3 As shown in the figure, this application discloses a multilayer composite structure of an ultrasonic transducer, including a reinforcing layer 301 and a heat dissipation and protection layer 302 fixed together by an adhesive, which is a high-temperature resistant epoxy resin.

[0041] The working principle of the multi-layer composite structure of the ultrasonic transducer in this embodiment is as follows: the reinforcing layer 301 and the heat dissipation protection layer 302 are fixed together by a high-temperature resistant epoxy resin adhesive. Its function is to ensure the stable bonding of the two layers under high-temperature working environment and prevent the separation of the layers due to vibration or thermal expansion. At the same time, the adhesive also has the function of heat conduction during the fixing process, which helps to efficiently transfer the heat of the reinforcing layer 301 to the heat dissipation protection layer 302, thereby improving the overall heat dissipation efficiency and further reducing the noise caused by mechanical vibration, enhancing the structural reliability and durability of the equipment.

[0042] This embodiment also discloses a multi-layer composite structure for an ultrasonic transducer. A piezoelectric ceramic crystal 205 is placed inside a sleeve 204, with its upper and lower ends contacting the upper flange 201 and lower flange 206 respectively via elastic silicone gaskets 202. A clamping ring 203 connects the sleeve 204 to the upper flange 201 via threads, and controls the vibration frequency of the piezoelectric ceramic crystal 205 by adjusting the preload, ensuring the stability of the core vibration unit. The gasket 202 has a wave-shaped groove on its surface to optimize the vibration transmission path and reduce energy loss.

[0043] The transducer 2 is sequentially covered by a multi-layer structure 3 consisting of a reinforcing layer 301, a heat dissipation and protection layer 302, and a sound insulation layer 303. The reinforcing layer 301 is made of a thermally conductive metal material and is fixed to the heat dissipation and protection layer 302, which is made of honeycomb thermally conductive material, with a high-temperature resistant epoxy resin adhesive, thereby enhancing mechanical strength and promoting heat dissipation. The sound insulation layer 303 is made of sound-insulating and thermally conductive material and wraps around the spring heat dissipation tube 401, which suppresses operating noise while efficiently conducting internal heat to the heat dissipation structure 4.

[0044] The heat dissipation structure 4 consists of a spring-loaded heat pipe 401 and a cooling fan 402. The spring-loaded heat pipe 401 increases its heat dissipation area through a spiral structure, and its outer side is fixedly supported by a sleeve 204, with a lower flange 206 movably connected below. The cooling fan 402 is installed at the bottom of the lower flange 206, accelerating heat dissipation from the spring-loaded heat pipe 401 through forced convection. The threaded connection between the sleeve 204 and the clamping ring 203 allows for mechanical adaptability and avoids stress concentration caused by vibration or thermal deformation.

[0045] The reinforcing layer 301 enhances overall rigidity, while the heat dissipation and protection layer 302 and the sound insulation layer 303 optimize sound-thermal coupling. The heat dissipation structure 4 ensures efficient thermal management through a combination of active and passive heat dissipation. The elastic silicone gasket 202 and the pre-tightening force adjustment design further guarantee vibration transmission efficiency and frequency controllability. The overall structure is compact, and high-temperature resistant epoxy resin adhesive fixes each layer, making it suitable for long-term stable operation of high-power ultrasonic equipment and effectively solving the problems of insufficient heat dissipation, loose structure, and excessive noise in traditional equipment.

[0046] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A multi-layer composite structure for an ultrasonic transducer, comprising a main body (1), characterized in that: The main body (1) includes a transducer (2), and a multi-layer structure (3) is provided on the outside of the transducer (2), and a heat dissipation structure (4) is provided below the multi-layer structure (3). The transducer (2) includes an upper flange (201), a gasket (202) is provided below the upper flange (201), a clamping ring (203) is provided on the outside of the gasket (202), a sleeve (204) is movably connected below the clamping ring (203), a piezoelectric ceramic crystal (205) is provided inside the sleeve (204), and a lower flange (206) is provided below the piezoelectric ceramic crystal (205). The multi-layer structure (3) includes a reinforcing layer (301), a heat dissipation protection layer (302) is provided on the inner side of the reinforcing layer (301), and a sound insulation layer (303) is provided on the inner side of the heat dissipation protection layer (302). The heat dissipation structure (4) includes a spring heat pipe (401), and a cooling fan (402) is movably connected below the spring heat pipe (401).

2. The multi-layer composite structure of an ultrasonic transducer according to claim 1, characterized in that: A clamping ring (203) is provided below the upper flange (201), a gasket (202) is provided inside the clamping ring (203), and a piezoelectric ceramic crystal (205) is provided inside the gasket (202).

3. The multi-layer composite structure of an ultrasonic transducer according to claim 1, characterized in that: A sleeve (204) is provided on the outside of the spring heat dissipation tube (401), and a lower flange (206) is movably installed below the sleeve (204). A cooling fan (402) is movably connected below the lower flange (206).

4. The multilayer composite structure of an ultrasonic transducer according to claim 1, characterized in that: The reinforcing layer (301) is a metal thermally conductive material, and the heat dissipation protection layer (302) is made of a honeycomb thermally conductive material, and is combined with the sound insulation layer (303) to reduce working noise and enhance heat conduction.

5. The multi-layer composite structure of an ultrasonic transducer according to claim 1, characterized in that: The sleeve (204) and the clamping ring (203) are connected by threads, and the vibration frequency of the piezoelectric ceramic crystal (205) is adjusted by the preload.

6. The multi-layer composite structure of an ultrasonic transducer according to claim 1, characterized in that: The sound insulation layer (303) wraps around the spring heat dissipation tube (401), and the sound insulation layer (303) is a sound insulation and heat conduction material.

7. The multilayer composite structure of an ultrasonic transducer according to claim 1, characterized in that: The gasket (202) is made of elastic silicone material, and its surface is provided with wavy grooves to enhance vibration transmission efficiency.

8. The multilayer composite structure of an ultrasonic transducer according to claim 1, characterized in that: The reinforcing layer (301) and the heat dissipation protection layer (302) are fixed together by an adhesive, which is a high-temperature resistant epoxy resin.

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