An ultrasonic high power transducer

Abstract

The application relates to the technical field of transducers and discloses an ultrasonic high-power transducer which comprises a mounting shell, a cable arranged on the outer wall of the mounting shell, a bearing support arranged in the mounting shell, a variable amplitude rod arranged on the side of the bearing support far from the cable, and a welding head arranged on the end of the variable amplitude rod far from the bearing support, the outer wall of the bearing support is fixedly installed with piezoelectric ceramic sheets through prestressed bolts, the piezoelectric ceramic sheets are arranged in four, the four piezoelectric ceramic sheets are uniformly distributed in a star-shaped structure, the outer wall of the bearing support is fixedly installed with a heat conduction support, the end of the heat conduction support far from the bearing support is fixedly installed with a heat conduction ring, and the inside of the mounting shell is provided with a cooling component. The ultrasonic high-power transducer effectively solves the problem that multiple piezoelectric ceramic sheets are prone to local overheating when working together, and improves the overall performance and reliability of the cooling system.

Description

Technical Field

[0001] This invention relates to the technical field of transducers, and more particularly to a high-power ultrasonic transducer. Background Technology

[0002] An ultrasonic transducer is a device that converts electrical energy into mechanical vibration energy. It is widely used in ultrasonic welding, ultrasonic cleaning, ultrasonic flaw detection and other fields. Among them, the ultrasonic transducer for metal welding is a device that uses ultrasonic energy to weld metal. It mainly consists of an ultrasonic generator, a transducer, an amplitude transformer and a welding head.

[0003] An ultrasonic transducer consists of piezoelectric ceramics, a housing, prestressed bolts, and a cooling system. An ultrasonic generator produces a high-frequency electrical signal (typically between 20kHz and 100kHz), which is transmitted to the ultrasonic transducer via a cable. The piezoelectric ceramic sheet (or other piezoelectric material) inside the transducer undergoes periodic mechanical deformation under the action of the high-frequency electrical signal, generating high-frequency mechanical vibrations. These mechanical vibrations are amplified by an amplitude transformer, which simultaneously adjusts the vibration characteristics to make the vibration energy more concentrated and effective. Finally, the mechanical vibrations are transmitted to the surface of the material being welded through a welding head or welding mold, causing high-frequency friction or melting between the contact surfaces, thus achieving the welding effect.

[0004] Currently, transducers on the market can typically transmit power stably up to 8KW. Due to the structure and physical characteristics of piezoelectric ceramic sheets, to achieve greater transmission power, it is generally necessary to use piezoelectric ceramic sheets with larger diameters or more piezoelectric ceramic sheets. However, when multiple sets of piezoelectric ceramic sheets work together, the heat generated tends to concentrate in certain areas, leading to localized overheating. Existing cooling systems are difficult to specifically cool down the localized areas of the transducer, which can easily affect the transducer's performance and lifespan.

[0005] Therefore, an ultrasonic transducer is needed that can achieve greater transmission power while meeting the heat dissipation requirements of the transducer and minimizing local overheating. This is to solve the problem that the heat generated by multiple piezoelectric ceramic plates working together tends to concentrate in certain areas, leading to local overheating. Summary of the Invention

[0006] In view of the above-mentioned problems in the existing technology, a high-power ultrasonic transducer is proposed.

[0007] This application provides a high-power ultrasonic transducer, the purpose of which is to effectively solve the problem of local overheating that easily occurs when multiple sets of piezoelectric ceramic plates work together, thereby improving the overall performance and reliability of the cooling system.

[0008] The technical solution of the present invention is as follows: an ultrasonic high-power transducer, comprising a mounting housing, a cable disposed on the outer wall of the mounting housing, a support bracket disposed inside the mounting housing, an amplitude transformer disposed on the side of the support bracket away from the cable, and a welding head disposed on the end of the amplitude transformer away from the support bracket. The outer wall of the support bracket is fixedly mounted with piezoelectric ceramic sheets by prestressed bolts, and four piezoelectric ceramic sheets are disposed thereon, the four piezoelectric ceramic sheets being evenly distributed in a star-shaped structure. A heat-conducting bracket is fixedly mounted on the outer wall of the support bracket, and a heat-conducting ring is fixedly mounted on the end of the heat-conducting bracket away from the support bracket. A cooling component is disposed inside the mounting housing; the cooling component includes a first liquid inlet pipe disposed inside the mounting housing, a bent pipe fixedly mounted on the end of the first liquid inlet pipe near the support bracket, a first diverting pipe fixedly mounted on the end of the bent pipe away from the first liquid inlet pipe, a second diverting pipe disposed on the end of the first diverting pipe away from the bent pipe, a spiral pipe disposed on the end of the second diverting pipe away from the first diverting pipe, and a first liquid outlet pipe fixedly mounted on the end of the spiral pipe away from the second diverting pipe, with the bent pipe surrounding the outer wall of the heat-conducting ring.

[0009] Furthermore, the cooling component also includes a first transmission tube fixedly installed at the end of the first steering tube away from the bend, and a second transmission tube fixedly installed at the end of the second steering tube away from the first transmission tube. The end of the first transmission tube away from the first steering tube is in communication with the interior of the second steering tube, and the end of the second transmission tube away from the second steering tube is in communication with the interior of the spiral tube.

[0010] Furthermore, there are four cooling components. A flow divider is fixedly installed at the end of the first liquid inlet pipe away from the bend in the four cooling components. A second liquid inlet pipe is fixedly installed inside the flow divider. A fusion component is fixedly installed at the end of the first liquid outlet pipe away from the spiral tube in the four cooling components. A second liquid outlet pipe is fixedly installed inside the fusion component.

[0011] Furthermore, the spiral tube has an internal cavity filled with heat-conducting oil, and a flow channel is provided inside the spiral tube for coolant to flow through. The interior of the second transmission tube is connected to the interior of the flow channel, and the interior of the flow channel is connected to the interior of the first outlet tube.

[0012] Furthermore, the spiral tube includes a first cooling section and a second cooling section, and the pitch of the first cooling section is greater than the pitch of the second cooling section.

[0013] Furthermore, a three-way solenoid valve is fixedly installed on the outer wall of the spiral tube, and a cut-off tube is fixedly installed on the outer wall of the three-way solenoid valve. A temperature sensor for measuring the temperature of the coolant inside the flow channel is fixedly installed inside the spiral tube, and the three-way solenoid valve is located between the first cooling section and the second cooling section.

[0014] Furthermore, the end of the cut-off tube furthest from the three-way solenoid valve is connected to the interior of the first outlet tube.

[0015] Furthermore, the length of the cut-off tube is less than the length of the second cooling section.

[0016] Furthermore, a logic controller is fixedly installed on the outer wall of the mounting housing. The logic controller is electrically connected to the temperature sensor and to the three-way solenoid valve.

[0017] The beneficial effects of this invention are:

[0018] 1. A high-frequency electrical signal generated by an ultrasonic generator is transmitted through a cable to four piezoelectric ceramic plates. The four piezoelectric ceramic plates are evenly distributed in a star-shaped structure. Under the action of the high-frequency electrical signal, the four piezoelectric ceramic plates undergo periodic mechanical deformation, generating waves at the same frequency. After passing through a pre-designed acoustic vibration transmission path, they converge and output simultaneously along the axial direction. According to the principle of acoustic resonance, this can effectively maximize the required vibration power under resonance, generating high-frequency mechanical vibration. These mechanical vibrations are amplified by an amplitude transformer, and the vibration characteristics are adjusted to make the vibration energy more concentrated and effective. Finally, the mechanical vibration is transmitted to the surface of the material being welded through the welding head, causing high-frequency friction or melting between the contact surfaces, achieving the welding effect.

[0019] 2. Through the cooling components, the first inlet pipe, the bend pipe, the first steering pipe, the first speed-changing pipe, the second steering pipe, the second speed-changing pipe, and the spiral pipe are distributed around the heat-conducting ring, the support bracket, and the piezoelectric ceramic plate. This is used to cool the heat-conducting ring, the support bracket, and the piezoelectric ceramic plate. The accommodating cavity is close to the piezoelectric ceramic plate and is a sealed chamber. The heat-conducting oil is used to absorb the heat emitted by the piezoelectric ceramic plate. The flow channel is for the flow of coolant. The heat-conducting oil further improves the heat absorption effect of the spiral pipe wall and ensures the heat dissipation effect of this device.

[0020] 3. Through intelligent control of temperature sensors and logic controllers, when the temperature of the coolant inside the first cooling section is detected to be too high and it is difficult to continue to cool effectively, the three-way solenoid valve will switch to allow the coolant to flow back directly through the cut-off pipe. This avoids the coolant from continuing to circulate during ineffective cooling and reduces the ineffective cooling time of the coolant. This method ensures that the coolant works in the high-efficiency range, significantly improves the cooling efficiency of the entire system, and effectively solves the problem that the heat generated by multiple piezoelectric ceramic plates when working together is easily concentrated in certain areas, resulting in local overheating. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2This is a schematic diagram of the installation of the logic controller in this invention;

[0023] Figure 3 This is a perspective view of the piezoelectric ceramic sheet in this invention;

[0024] Figure 4 This is a cross-sectional view of the housing in this invention;

[0025] Figure 5 This is a schematic diagram of the installation of the heat-conducting bracket in this invention;

[0026] Figure 6 This is a schematic diagram of the installation of the cooling component in this invention;

[0027] Figure 7 This is a perspective view of the bent pipe in this invention;

[0028] Figure 8 This is a perspective view of the first transmission tube in this invention;

[0029] Figure 9 This is a schematic diagram of the installation of the first cooling section and the second cooling section in this invention;

[0030] Figure 10 This is a cross-sectional view of the spiral tube in this invention;

[0031] Figure 11 For the present invention Figure 7 Enlarged diagram of point A in the middle.

[0032] In the picture:

[0033] 1. Mounting housing; 2. Cable; 3. Bearing bracket; 4. Piezoelectric ceramic sheet; 5. Prestressed bolt; 6. Amplifier rod; 7. Welding head; 8. Thermally conductive bracket; 9. Thermally conductive ring; 10. Cooling component; 11. First inlet pipe; 12. Bend; 13. First steering pipe; 14. First speed change pipe; 15. Second steering pipe; 16. Second speed change pipe; 17. Spiral tube; 18. Receptacle; 19. Flow channel; 20. First cooling section; 21. Second cooling section; 22. First outlet pipe; 23. Three-way solenoid valve; 24. Cut-off pipe; 25. Temperature sensor; 26. Diverter; 27. Second inlet pipe; 28. Fusion component; 29. ​​Second outlet pipe; 30. Logic controller. Detailed Implementation

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0035] Example 1, referring to Figures 1-10The first embodiment of the present invention provides an ultrasonic high-power transducer, including a mounting housing 1, a cable 2 disposed on the outer wall of the mounting housing 1, a support bracket 3 disposed inside the mounting housing 1, an amplitude transformer 6 disposed on the side of the support bracket 3 away from the cable 2, and a welding head 7 disposed on the end of the amplitude transformer 6 away from the support bracket 3. The outer wall of the support bracket 3 is fixedly mounted with piezoelectric ceramic plates 4 by prestressed bolts 5, and four piezoelectric ceramic plates 4 are provided, which are evenly distributed in a star-shaped structure.

[0036] Specifically, cable 2 is electrically connected to piezoelectric ceramic plates 4 via a support bracket 3. An ultrasonic generator (not shown in the figure) is electrically connected to the end of cable 2 furthest from the support bracket 3. The ultrasonic generator generates a high-frequency electrical signal, which is transmitted through cable 2 to the four piezoelectric ceramic plates 4 (or other piezoelectric materials). The four piezoelectric ceramic plates 4 are evenly distributed in a star-shaped structure. Under the action of the high-frequency electrical signal, the four piezoelectric ceramic plates 4 undergo periodic mechanical deformation, generating waves at the same frequency according to a verified angle. These waves converge along a designed acoustic vibration transmission path and are simultaneously output along the axial direction. According to the principle of acoustic resonance, this effectively maximizes the required vibration power under resonance, generating high-frequency mechanical vibration. These mechanical vibrations are amplified by the amplitude transformer 6, which simultaneously adjusts the vibration characteristics, making the vibration energy more concentrated and effective. Finally, the mechanical vibration is transmitted to the surface of the material being welded through the welding head 7, causing high-frequency friction or melting between the contact surfaces, achieving the welding effect. During installation, this device needs to maintain a reasonable angle with the entire vibrating arm system, generally avoiding a 45° angle; an angle between 35-55° is considered feasible.

[0037] Reference Figure 5 A heat-conducting bracket 8 is fixedly installed on the outer wall of the support bracket 3. A heat-conducting ring 9 is fixedly installed on the end of the heat-conducting bracket 8 away from the support bracket 3. A cooling component 10 is provided inside the mounting housing 1.

[0038] Specifically, both the heat-conducting bracket 8 and the heat-conducting ring 9 can be made of materials with high thermal conductivity, such as copper and aluminum. The specific material can be determined according to actual needs, and will not be elaborated on here. The cooling component 10 is distributed around the heat-conducting ring 9, the support bracket 3 and the piezoelectric ceramic sheet 4, and is used to cool the heat-conducting ring 9, the support bracket 3 and the piezoelectric ceramic sheet 4.

[0039] Reference Figures 6-7The cooling component 10 includes a first liquid inlet pipe 11 disposed inside the mounting housing 1, a bent pipe 12 fixedly installed at one end of the first liquid inlet pipe 11 near the support bracket 3, a first diverting pipe 13 fixedly installed at one end of the bent pipe 12 away from the first liquid inlet pipe 11, a second diverting pipe 15 disposed at one end of the first diverting pipe 13 away from the bent pipe 12, a spiral pipe 17 disposed at one end of the second diverting pipe 15 away from the first diverting pipe 13, and a first liquid outlet pipe 22 fixedly installed at one end of the spiral pipe 17 away from the second diverting pipe 15, and the bent pipe 12 surrounds the outer wall of the heat-conducting ring 9.

[0040] Specifically, the low-temperature coolant enters from the first inlet pipe 11, and the bend pipe 12 surrounds the outer wall of the heat-conducting ring 9. On the one hand, this increases the contact area between the bend pipe 12 and the heat-conducting ring 9, which is beneficial for the low-temperature coolant inside the bend pipe 12 to cool the heat-conducting ring 9. On the other hand, the bend pipe 12 spirals downward as a whole, and then the coolant is guided by the first diverting pipe 13 along the outer wall of the support bracket 3. The design of the bend pipe 12 structure can prevent the coolant from directly impacting the first diverting pipe 13 after it comes out of the first inlet pipe 11, which would cause damage to the first diverting pipe 13 over time, thus achieving a buffering effect.

[0041] The spiral tube 17 is wrapped around the piezoelectric ceramic plate 4. The coolant enters the second diverting tube 15 from the first diverting tube 13, and then enters the spiral tube 17 from the second diverting tube 15. Finally, the coolant flows out from the inside of the first outlet tube 22. The tube wall of the spiral tube 17 can be made of materials with high thermal conductivity such as copper and aluminum. The specific material can be determined according to actual needs.

[0042] Reference Figure 8 The cooling component 10 also includes a first gear pipe 14 fixedly installed at the end of the first steering pipe 13 away from the bend pipe 12, and a second gear pipe 16 fixedly installed at the end of the second steering pipe 15 away from the first gear pipe 14. The end of the first gear pipe 14 away from the first steering pipe 13 is in communication with the interior of the second steering pipe 15, and the end of the second gear pipe 16 away from the second steering pipe 15 is in communication with the interior of the spiral pipe 17.

[0043] Specifically, the inner diameter of the middle section of the first gear shift tube 14 is smaller than the inner diameter of its two ends, and the inner diameter of the second steering tube 15 is smaller than the inner diameter of the first steering tube 13. The inner diameter of the middle section of the second gear shift tube 16 is smaller than the inner diameter of its two ends. When the coolant enters the middle section of the first gear shift tube 14 or the second gear shift tube 16, the flow rate of the coolant increases, which enhances the impact on the tube wall and the turbulence effect, thereby improving the heat exchange efficiency and cooling effect. When the coolant leaves the first gear shift tube 14 or the second gear shift tube 16, the flow rate of the coolant decreases, which increases the contact time between the coolant and the inner wall of the spiral tube 17, which is conducive to more thorough heat absorption and better cooling effect.

[0044] Reference Figure 4 and Figure 6 The cooling components 10 are provided with four parts. The first liquid inlet pipe 11 of the four cooling components 10 is fixedly installed with a diverter 26 at the end away from the bend pipe 12. The second liquid inlet pipe 27 is fixedly installed inside the diverter 26. The first liquid outlet pipe 22 of the four cooling components 10 is fixedly installed with a fusion member 28 at the end away from the spiral pipe 17. The second liquid outlet pipe 29 is fixedly installed inside the fusion member 28.

[0045] Specifically, the four cooling components 10 correspond to the positions of the four piezoelectric ceramic plates 4 respectively. The end of the second liquid inlet pipe 27 away from the flow divider 26 is connected to a cooling circulation system (not shown in the figure), and the end of the second liquid outlet pipe 29 away from the fusion member 28 is connected to the cooling circulation system. The cooling circulation system can be composed of a cooling water tank, water pump, heat exchanger / heat exchanger, and piping system, which are common in the prior art. Its specific model can be determined according to the actual heat dissipation requirements of the piezoelectric ceramic plates 4 to ensure the stability and reliability of the overall system performance. It will not be elaborated on further here.

[0046] Reference Figure 10 The spiral tube 17 has a receiving cavity 18 inside, which is filled with heat transfer oil. The spiral tube 17 has a flow channel 19 inside, and the interior of the second speed change tube 16 is connected to the interior of the flow channel 19. The interior of the flow channel 19 is connected to the interior of the first liquid outlet tube 22.

[0047] Specifically, the accommodating cavity 18 is close to the piezoelectric ceramic plate 4, and the accommodating cavity 18 is a sealed chamber. The heat-conducting oil is used to absorb the heat emitted by the piezoelectric ceramic plate 4, and the flow channel 19 is for the flow of coolant. The heat-conducting oil can further improve the heat absorption effect of the spiral tube 17 wall and ensure the heat dissipation effect of the device.

[0048] Reference Figure 9 The spiral tube 17 includes a first cooling section 20 and a second cooling section 21, and the pitch of the first cooling section 20 is greater than the pitch of the second cooling section 21.

[0049] Specifically, the temperature of the coolant when passing through the first cooling section 20 is lower than that when passing through the second cooling section 21. Therefore, the pitch of the second cooling section 21 is relatively short, which makes the coolant spend a longer time passing through the second cooling section 21, increasing the contact time between the coolant and the inner wall of the second cooling section 21 and improving the cooling effect.

[0050] Example 2, refer to Figures 1-11This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that a three-way solenoid valve 23 is fixedly installed on the outer wall of the spiral tube 17, a cut-off tube 24 is fixedly installed on the outer wall of the three-way solenoid valve 23, a temperature sensor 25 for measuring the temperature of the coolant inside the flow channel 19 is fixedly installed inside the spiral tube 17, and the three-way solenoid valve 23 is located between the first cooling section 20 and the second cooling section 21.

[0051] Specifically, the temperature sensor 25 is located in the first cooling section 20 and close to the second cooling section 21. The temperature sensor 25 can measure the temperature of the coolant inside the flow channel 19.

[0052] When the coolant reaches a high temperature in the second cooling section 21, it becomes difficult to achieve a cooling effect. At this point, the three-way solenoid valve 23 can be controlled to allow the first cooling section 20 and the cut-off pipe 24 to circulate, thereby enabling the coolant to flow back directly. This reduces the ineffective cooling time of the coolant, further improving the ease of use and cooling efficiency of the device. It effectively solves the problem that the heat generated by multiple piezoelectric ceramic plates 4 when working together tends to concentrate in certain areas, leading to local overheating.

[0053] Reference Figure 11 The end of the cut-off tube 24 away from the three-way solenoid valve 23 is connected to the interior of the first outlet tube 22.

[0054] Specifically, the cut-off pipe 24 and the first outlet pipe 22 are internally connected, so that when the three-way solenoid valve 23 controls the flow between the first cooling section 20 and the cut-off pipe 24, the coolant inside the first cooling section 20 can directly flow back through the cut-off pipe 24 and the first outlet pipe 22.

[0055] Reference Figure 9 ,as well as Figure 11 The length of the cut-off tube 24 is less than the length of the second cooling section 21.

[0056] Specifically, the length of the cut-off pipe 24 is less than the length of the second cooling section 21, which can effectively reduce the ineffective cooling time of the coolant, thereby enabling the coolant to be quickly reprocessed and cooled for the next round.

[0057] Reference Figure 2 A logic controller 30 is fixedly installed on the outer wall of the housing 1. The logic controller 30 is electrically connected to the temperature sensor 25 and to the three-way solenoid valve 23.

[0058] Specifically, the logic controller 30 is a mature existing technology, which will not be described in detail here. The temperature sensor 25 detects the temperature of the coolant inside the first cooling section 20 and transmits the temperature signal to the logic controller 30. The logic controller 30 inputs the temperature range in which the coolant has a cooling effect. The logic controller 30 controls the three-way solenoid valve 23 to work, controlling whether the first cooling section 20 is connected to the second cooling section 21 or to the cut-off pipe 24.

[0059] The remaining structure is the same as that in Example 1.

[0060] Based on Embodiments 1 and 2, the working principle of the present invention is as follows:

[0061] The ultrasonic generator produces a high-frequency electrical signal, which is transmitted through cable 2 to four piezoelectric ceramic plates 4. The four piezoelectric ceramic plates 4 are evenly distributed in a star-shaped structure. Under the action of the high-frequency electrical signal, the four piezoelectric ceramic plates 4 undergo periodic mechanical deformation, uniformly emitting waves at the same frequency. After passing through a pre-designed acoustic vibration transmission path, they converge and output simultaneously along the axial direction. According to the principle of acoustic resonance, this can effectively maximize the output of the required vibration power under resonance, generating high-frequency mechanical vibration. These mechanical vibrations are amplified by the amplitude transformer 6, and the vibration characteristics are adjusted to make the vibration energy more concentrated and effective. Finally, the mechanical vibration is transmitted to the surface of the material being welded through the welding head 7, causing high-frequency friction or melting between the contact surfaces, achieving the welding effect.

[0062] During operation, the transducer generates a large amount of heat. At this time, the cooling component 10 is activated, and the coolant flows out of the cooling circulation system through the second inlet pipe 27 and the diverter 26, and is diverted into the interior of the four cooling components 10. Specifically, the coolant passes through the first inlet pipe 11, the bend pipe 12, the first diverting pipe 13, the first speed change pipe 14, the second diverting pipe 15, the second speed change pipe 16, the spiral pipe 17, and the first outlet pipe 22 in sequence. Finally, the coolant enters the fusion component 28 and the second outlet pipe 29 from the first outlet pipe 22 in the four cooling components 10. After flowing out from the interior of the second outlet pipe 29, the coolant enters the cooling circulation system to achieve reflux.

[0063] During this process, when the temperature sensor 25 detects that the temperature of the coolant inside the first cooling section 20 of the spiral tube 17 is already high and it is difficult to achieve a cooling effect, the temperature sensor 25 detects the temperature of the coolant inside the first cooling section 20 and transmits the temperature signal to the logic controller 30. The logic controller 30 then controls the three-way solenoid valve 23 to work, allowing the first cooling section 20 to circulate with the cut-off tube 24. The coolant inside the first cooling section 20 can then directly flow back through the cut-off tube 24 and the first outlet tube 22, thereby reducing the ineffective cooling time of the coolant. This further improves the ease of use and cooling efficiency of the device and effectively solves the problem that the heat generated by multiple piezoelectric ceramic plates 4 when working together is easily concentrated in certain areas, leading to local overheating.

[0064] Conversely, when the temperature sensor 25 detects that the coolant temperature inside the first cooling section 20 has a cooling effect, the logic controller 30 controls the three-way solenoid valve 23 to work, so that the first cooling section 20 is connected to the second cooling section 21, and the coolant flows through the second cooling section 21 again to cool the piezoelectric ceramic sheet 4 in the second cooling section 21.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A high-power ultrasonic transducer, comprising a mounting housing (1), a cable (2) disposed on the outer wall of the mounting housing (1), a support bracket (3) disposed inside the mounting housing (1), an amplitude transformer (6) disposed on the side of the support bracket (3) away from the cable (2), and a welding head (7) disposed on the end of the amplitude transformer (6) away from the support bracket (3), characterized in that: The outer wall of the support bracket (3) is fixedly installed with piezoelectric ceramic sheets (4) by prestressed bolts (5), and there are four piezoelectric ceramic sheets (4). The four piezoelectric ceramic sheets (4) are evenly distributed in a star-shaped structure. The outer wall of the support bracket (3) is fixedly installed with a heat-conducting bracket (8). A heat-conducting ring (9) is fixedly installed at the end of the heat-conducting bracket (8) away from the support bracket (3). A cooling component (10) is provided inside the mounting housing (1). The cooling component (10) includes a first liquid inlet pipe (11) disposed inside the mounting housing (1), a bent pipe (12) fixedly installed at one end of the first liquid inlet pipe (11) near the support bracket (3), a first diverting pipe (13) fixedly installed at one end of the bent pipe (12) away from the first liquid inlet pipe (11), a second diverting pipe (15) disposed at one end of the first diverting pipe (13) away from the bent pipe (12), a spiral pipe (17) disposed at one end of the second diverting pipe (15) away from the first diverting pipe (13), and a first liquid outlet pipe (22) fixedly installed at one end of the spiral pipe (17) away from the second diverting pipe (15), and the bent pipe (12) surrounds the outer wall of the heat-conducting ring (9); The spiral tube (17) has a flow channel (19) inside. The spiral tube (17) includes a first cooling section (20) and a second cooling section (21), and the pitch of the first cooling section (20) is greater than the pitch of the second cooling section (21). A three-way solenoid valve (23) is fixedly installed on the outer wall of the spiral tube (17), and a cut-off tube (24) is fixedly installed on the outer wall of the three-way solenoid valve (23). A temperature sensor (25) for measuring the temperature of the coolant inside the flow channel (19) is fixedly installed inside the spiral tube (17), and the three-way solenoid valve (23) is located between the first cooling section (20) and the second cooling section (21). The end of the cut-off tube (24) away from the three-way solenoid valve (23) is connected to the interior of the first outlet tube (22).

2. The high-power ultrasonic transducer according to claim 1, characterized in that: The cooling component (10) further includes a first gear tube (14) fixedly installed at the end of the first steering tube (13) away from the bend (12), and a second gear tube (16) fixedly installed at the end of the second steering tube (15) away from the first gear tube (14). The end of the first gear tube (14) away from the first steering tube (13) is connected to the interior of the second steering tube (15), and the end of the second gear tube (16) away from the second steering tube (15) is connected to the interior of the spiral tube (17).

3. The high-power ultrasonic transducer according to claim 2, characterized in that: The cooling components (10) are provided in four parts. A diverter (26) is fixedly installed at the end of the first liquid inlet pipe (11) of the four cooling components (10) away from the bend pipe (12). A second liquid inlet pipe (27) is fixedly installed inside the diverter (26). A fusion component (28) is fixedly installed at the end of the first liquid outlet pipe (22) of the four cooling components (10) away from the spiral pipe (17). A second liquid outlet pipe (29) is fixedly installed inside the fusion component (28).

4. The high-power ultrasonic transducer according to claim 3, characterized in that: The spiral tube (17) has an internal cavity (18) filled with heat-conducting oil. The internal flow channel (19) is used for coolant flow. The internal of the second speed-changing tube (16) is connected to the internal of the flow channel (19). The internal of the flow channel (19) is connected to the internal of the first liquid outlet tube (22).

5. The high-power ultrasonic transducer according to claim 1, characterized in that: The length of the cut-off tube (24) is less than the length of the second cooling section (21).

6. The high-power ultrasonic transducer according to claim 1, characterized in that: A logic controller (30) is fixedly installed on the outer wall of the mounting housing (1). The logic controller (30) is electrically connected to the temperature sensor (25) and to the three-way solenoid valve (23).

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