Medical solid-state microwave source over-temperature protection device
By combining heat-conducting components and magnet-controlled fan speed with water atomization cooling, the problem of low heat dissipation efficiency of medical solid-state microwave sources was solved, and stable operation of the equipment was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 百德(苏州)医疗有限公司
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-12
AI Technical Summary
Existing medical solid-state microwave sources have limited heat dissipation efficiency during operation, which causes the equipment to frequently trigger over-temperature protection mechanisms, reducing operational stability.
Heat is transferred to the inside of the main rod using a heat-conducting component. Gas expansion drives the movement of the support rod. The fan speed is controlled by the repulsive force of magnets. Water atomizing nozzles and activated carbon adsorption cotton are used for cooling to achieve active heat dissipation.
It improves the operational stability of the equipment and effectively reduces the equipment temperature through an active heat dissipation mechanism, thus avoiding frequent triggering of the over-temperature protection mechanism.
Smart Images

Figure CN224234044U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of medical solid-state microwave source technology, specifically to an over-temperature protection device for a medical solid-state microwave source. Background Technology
[0002] Medical solid-state microwave sources utilize solid-state electronics technology to generate microwaves, achieving tumor treatment and tissue ablation through thermal effects. They can also assist in physiotherapy and rehabilitation through thermal effects. However, existing medical solid-state microwave sources generate a large amount of heat during operation. When the heat exceeds the expected threshold for safe operation, it will cause the performance of internal electronic components to degrade, shorten their lifespan, and even cause equipment failure. However, current medical solid-state microwave sources rely solely on their own simple heat dissipation vents for passive heat dissipation, which has extremely limited heat dissipation efficiency and cannot effectively dissipate excess heat in a timely manner. This causes the equipment to operate at high temperatures for extended periods, frequently triggering over-temperature protection mechanisms and reducing operational stability. Utility Model Content
[0003] The purpose of this invention is to provide an over-temperature protection device for a medical solid-state microwave source. By using this device, the problem of existing medical solid-state microwave sources being able to dissipate heat through only a single heat dissipation vent, which causes the device to frequently trigger the over-temperature protection mechanism and reduces operational stability, is solved.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a medical solid-state microwave source over-temperature protection device, comprising a microwave source body, with a protective frame fixedly installed on one side of the microwave source body;
[0005] A water tank is fixedly installed on the surface of the protective frame. A round hole is opened on one side of the protective frame. A button is provided on the inner wall of the protective frame. A moving component for moving and pressing the button is fixedly installed on the inner wall of the protective frame. An adjusting component for adjusting the moving distance of the moving component is also fixedly installed on the inner wall of the protective frame. A heat-conducting component for dissipating heat is provided inside the microwave source body. A motor is fixedly installed on one side of the protective frame. A fan is fixedly installed on one end of the motor.
[0006] Furthermore, the heat-conducting assembly includes a heat-conducting plate fixedly installed inside the microwave source body. One end of the heat-conducting plate is fixedly connected to the power amplifier inside the microwave source body, and a main rod is fixedly installed at the other end of the heat-conducting plate. A support rod is movably arranged inside the main rod, and two sets of support rods are arranged. Both the heat-conducting plate and the main rod are filled with gas. A V-shaped plate is fixedly installed at one end of the support rod, and a limiting plate is fixedly installed at the other end of the support rod. The V-shaped plate fits against the inner wall of the main rod, and the limiting plate is located at one end of the main rod. A compression spring is fixedly installed on one side of the limiting plate, and the other end of the compression spring is fixedly connected to one end of the main rod. A rack is fixedly installed on the other side of the limiting plate.
[0007] Furthermore, the adjustment assembly includes a fixing plate fixedly installed on the inner wall of the protective frame. There are two sets of fixing plates, and a column is movably installed between the two sets of fixing plates. A vertical plate is fixedly installed on one side of each of the two sets of fixing plates. A rectangular groove is opened on one side of the vertical plate. A magnet A and a gear are fixedly installed on the outer surface of the column. The gear meshes with the rack.
[0008] Furthermore, the movable component includes a fixed rod that is fixedly installed on the inner wall of the protective frame. There are two sets of fixed rods, and a connecting rod is movably arranged between the two sets of fixed rods. A magnet B is fixedly installed on the upper surface of the connecting rod. Magnet B and magnet A are on the same horizontal line. A base is fixedly installed on the lower surface of the connecting rod. A roller is provided at the bottom of the base. Magnet B and magnet A are magnetically connected.
[0009] Furthermore, water pipes are fixedly installed on both sides of the water tank, a small water pump is fixedly installed on the outer surface of the water pipes, an atomizing nozzle is fixedly installed at one end of the water pipes, a support plate is fixedly installed on one side of the motor, one end of the support plate is fixedly connected to one side of the protective frame, the atomizing nozzle is located in a round hole opened on one side of the protective frame, and the fan is located in front of the atomizing nozzle.
[0010] Furthermore, a heat dissipation vent is provided on the surface of the microwave source body, and a ventilation vent is provided on one side of the microwave source body. Activated carbon adsorption cotton is fixedly installed on the inner wall of the ventilation vent, and the ventilation vent is located inside the protective frame.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention proposes an over-temperature protection device for a medical solid-state microwave source. When the microwave source body operates for an extended period, the high temperature generated inside is transferred to the main rod through a heat-conducting plate. Subsequently, the gas inside the main rod and support rod expands, causing the support rod to move. At this time, the rack contacts the gear. When the temperature is high, the extension distance of the support rod increases, and the column rotates half a turn, causing one side of magnet A to face the other side of magnet B. The repelling magnet B then moves. When the other side of magnet B contacts the button, the fan rotates. Due to the high temperature of the current device, magnet B continues to press against the button until the button reaches the bottom. At this point, the fan's rotation speed increases, cooling the inside of the microwave source body for protection. Combined with the sprayed water mist, the temperature of the air blown out by the fan can be further reduced, thereby improving the stability of the device's operation. Attached Figure Description
[0013] Figure 1 An overall schematic diagram according to one embodiment of the present invention is shown for illustrative purposes.
[0014] Figure 2 A schematic diagram illustrating the overall breakdown according to one embodiment of the present invention is shown.
[0015] Figure 3A schematic diagram of a microwave source body according to one embodiment of the present invention is shown for illustrative purposes.
[0016] Figure 4 A schematic diagram of the interior of a protective frame according to one embodiment of the present invention is shown for illustrative purposes.
[0017] Figure 5 This is a schematic diagram illustrating the internal disassembly of a heat-conducting component according to one embodiment of the present invention;
[0018] Figure 6 A schematic diagram of an adjustment component according to one embodiment of the present invention is shown for illustrative purposes.
[0019] Figure 7 A schematic diagram of a movable component according to one embodiment of the present invention is shown for illustrative purposes.
[0020] Figure 8 A schematic diagram of a water tank and fan according to one embodiment of the present invention is shown for illustrative purposes.
[0021] In the diagram: 1. Microwave source body; 11. Heat dissipation vent; 12. Ventilation vent; 13. Activated carbon absorbent cotton; 2. Protective frame; 21. Water tank; 211. Water pipe; 212. Atomizing nozzle; 22. Adjustment component; 221. Fixing plate; 222. Vertical plate; 223. Rectangular groove; 224. Column; 225. Gear; 226. Magnet A; 23. Heat conduction component; 231. Heat conduction plate; 232. Main rod; 233. Support rod; 234. V-shaped plate; 235. Limiting plate; 236. Compression spring; 237. Rack; 24. Button; 25. Moving component; 251. Fixing rod; 252. Connecting rod; 253. Magnet B; 254. Base; 255. Roller; 26. Motor; 261. Support plate; 262. Fan. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] According to one embodiment of the present invention, Figures 1-8 A medical solid-state microwave source over-temperature protection device includes a microwave source body 1, and a protective frame 2 is fixedly installed on one side of the microwave source body 1.
[0024] A water tank 21 is fixedly installed on the surface of the protective frame 2. A round hole is opened on one side of the protective frame 2. A button 24 is provided on the inner wall of the protective frame 2. A moving component 25 for moving and pressing the button 24 is fixedly installed on the inner wall of the protective frame 2. An adjusting component 22 for adjusting the moving distance of the moving component 25 is also fixedly installed on the inner wall of the protective frame 2. A heat-conducting component 23 for dissipating heat is provided inside the microwave source body 1. A motor 26 is fixedly installed on one side of the protective frame 2. A fan 262 is fixedly installed at one end of the motor 26. The heat-conducting component 23 can directly conduct the heat from the heat-generating components inside the microwave source body 1 to itself. When the heat-conducting component 23 receives heat, it will cause the adjusting component 22 to start working, causing the adjusting component 22 to drive the moving component 25 to move, so that the moving component 25 contacts the button 24, thereby turning on the fan 262. Then the water tank 21 will spray the liquid inside into a mist onto the surface of the fan 262, thereby further reducing the heat.
[0025] The heat-conducting assembly 23 includes a heat-conducting plate 231 fixedly installed inside the microwave source body 1. One end of the heat-conducting plate 231 is fixedly connected to a power amplifier inside the microwave source body 1, and a main rod 232 is fixedly installed at the other end of the heat-conducting plate 231. A support rod 233 is movably arranged inside the main rod 232. Two sets of support rods 233 are provided. Both the heat-conducting plate 231 and the main rod 232 are filled with gas. A V-shaped plate 234 is fixedly installed at one end of the support rod 233, and a limiting plate 235 is fixedly installed at the other end of the support rod 233. The V-shaped plate 234 fits against the inner wall of the main rod 232, and the limiting plate 235 is located at one end of the main rod 232. One side of the limiting plate 235 is fixed. A compression spring 236 is installed, with its other end fixedly connected to one end of the main rod 232. A rack 237 is fixedly installed on the other side of the limiting plate 235. Heat is transferred to the surface of the main rod 232 through the heat conduction plate 231, causing the gas inside the main rod 232 to expand due to the heat, which drives the support rod 233 to move to both sides. As the support rod 233 moves to both sides, the rack 237 will contact the adjustment component 22, thereby starting the adjustment component 22 to work. The greater the heat, the longer the support rod 233 will extend, which will cause the adjustment component 22 to drive the moving component 25 to move a longer distance, and the faster the fan 262 will rotate.
[0026] The adjustment component 22 includes a fixed plate 221 fixedly installed on the inner wall of the protective frame 2. There are two sets of fixed plates 221, and a column 224 is movably installed between the two sets of fixed plates 221. A vertical plate 222 is fixedly installed on one side of the two sets of fixed plates 221. A rectangular groove 223 is opened on one side of the vertical plate 222. A magnet A226 and a gear 225 are fixedly installed on the outer surface of the column 224. The gear 225 meshes with a rack 237. The rotation of the magnet A226 can move the moving component 25. The cooperation between the gear 225 and the rack 237 can precisely control the distance the moving component 25 moves, thereby adjusting the rotation speed of the fan 262 according to the temperature.
[0027] The movable component 25 includes a fixed rod 251 fixedly installed on the inner wall of the protective frame 2. There are two sets of fixed rods 251, and a connecting rod 252 is movably arranged between the two sets of fixed rods 251. A magnet B253 is fixedly installed on the upper surface of the connecting rod 252. Magnet B253 and magnet A226 are on the same horizontal line. A base 254 is fixedly installed on the lower surface of the connecting rod 252. A roller 255 is provided at the bottom of the base 254. Magnet B253 and magnet A226 are magnetically connected. When magnet A226 and magnet B253 are magnetically attracted, one side of magnet B253 will adhere to one side of the upright plate 222. When magnet A226 starts to rotate, magnet A226 and magnet B253 will gradually change from an attractive state to a repulsive state, thereby allowing magnet B253 to start moving. When one side of magnet A226 and one side of magnet B253 are completely repulsive, magnet B253 will press the button 24 to the lowest position, maximizing the rotation speed of fan 262.
[0028] Water pipes 211 are fixedly installed on both sides of the water tank 21. A small water pump is fixedly installed on the outer surface of the water pipes 211. An atomizing nozzle 212 is fixedly installed at one end of the water pipes 211. A support plate 261 is fixedly installed on one side of the motor 26. One end of the support plate 261 is fixedly connected to one side of the protective frame 2. The atomizing nozzle 212 is located in a round hole opened on one side of the protective frame 2. The fan 262 is located in front of the atomizing nozzle 212. When the fan 262 starts to rotate, the small water pump will draw the liquid inside the water tank 21 into the water pipes 211, and then spray it out through the atomizing nozzle 212. At this time, the sprayed water mist will pass through the fan 262, allowing the air blown out by the fan 262 to be further cooled.
[0029] A heat dissipation vent 11 is provided on the surface of the microwave source body 1, and a ventilation vent 12 is provided on one side of the microwave source body 1. Activated carbon adsorption cotton 13 is fixedly installed on the inner wall of the ventilation vent 12. The ventilation vent 12 is located inside the protective frame 2. When the fan 262 starts blowing air and blows water mist along with it, the activated carbon adsorption cotton 13 will block the water mist, while the cold air will pass through the activated carbon adsorption cotton 13 and enter the microwave source body 1 to cool its interior. As the cold air enters, airflow will also be generated inside the microwave source body 1. The airflow entering from the ventilation vent 12 will carry the original hot air inside the microwave source body 1 out through the heat dissipation vent 11, further accelerating the heat dissipation effect.
[0030] Specifically, when the microwave source body 1 is used for a long time, the internal power amplifier will generate high temperatures. At this time, the heat-conducting plate 231 will conduct the temperature of the device to the inside of the main rod 232. At this time, the gas inside the main rod 232 and the support rod 233 will expand due to thermal expansion and contraction, causing the support rod 233 to move with the rack 237. When the rack 237 starts to move, the gear 225 will start to rotate, causing the magnets A226 and B253 to gradually change from an attractive state to a repulsive state. Due to the rotation angle of magnet A226 and the support rod 232, the magnets A226 and B253 will gradually change from an attractive state to a repulsive state. The extension length of support rod 233 is related to the temperature of the device itself. Therefore, when the device temperature reaches a point requiring heat dissipation but does not exceed a threshold, the repulsive surfaces of magnet A226 and magnet B253 will tilt. At this time, magnet B253 will begin to move due to the repulsion with magnet A226, causing the other end of magnet B253 to contact and press button 24. Since the device temperature is not too high, the movement distance of button 24 is very short, and fan 262 will cool the device at its normal rotation speed. When the temperature is about to exceed the threshold, the support rod 233 will extend fully along with the rack 237. At this moment, the repulsive side of magnet A226 will face the repulsive side of magnet B253, causing magnet B253 to move again, moving button 24 to the bottom, thereby increasing the rotation speed of fan 262. When fan 262 starts rotating, the small water pump on the surface of water pipe 211 will periodically add water from water tank 21 to water pipe 211 according to a certain pattern, and then spray it out from atomizing nozzle 212 in an atomized form, further reducing the concentration of pollutants in the air. The temperature is controlled by the cooling air mixed with water mist, which enters the microwave source body 1 through the activated carbon adsorption cotton 13. This forces the hot air inside out of the heat dissipation port 11, ensuring a continuous flow of cool air into the microwave source body 1. Since the small water pump sprays water periodically and the microwave source body 1 itself generates high temperatures, the activated carbon adsorption cotton 13 can dry under the high temperature of the microwave source body 1. Thus, the cooling of the equipment inside the microwave source body 1 is further achieved by the air blowing from the fan 262 and the addition of water mist, thereby improving the stability of the equipment operation.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A medical solid-state microwave source over-temperature protection device, characterized in that: Includes a microwave source body, and a protective frame is fixedly installed on one side of the microwave source body; A water tank is fixedly installed on the surface of the protective frame. A round hole is opened on one side of the protective frame. A button is provided on the inner wall of the protective frame. A moving component for moving and pressing the button is fixedly installed on the inner wall of the protective frame. An adjusting component for adjusting the moving distance of the moving component is also fixedly installed on the inner wall of the protective frame. A heat-conducting component for dissipating heat is provided inside the microwave source body. A motor is fixedly installed on one side of the protective frame. A fan is fixedly installed on one end of the motor.
2. The medical solid-state microwave source over-temperature protection device according to claim 1, characterized in that: The heat-conducting assembly includes a heat-conducting plate fixedly installed inside the microwave source body. One end of the heat-conducting plate is fixedly connected to a power amplifier inside the microwave source body, and a main rod is fixedly installed at the other end of the heat-conducting plate. A support rod is movably arranged inside the main rod, and two sets of support rods are provided. Both the heat-conducting plate and the main rod are filled with gas. A V-shaped plate is fixedly installed at one end of the support rod, and a limiting plate is fixedly installed at the other end of the support rod. The V-shaped plate fits against the inner wall of the main rod, and the limiting plate is located at one end of the main rod. A compression spring is fixedly installed on one side of the limiting plate, and the other end of the compression spring is fixedly connected to one end of the main rod. A rack is fixedly installed on the other side of the limiting plate.
3. The medical solid-state microwave source over-temperature protection device according to claim 2, characterized in that: The adjustment assembly includes a fixing plate fixedly installed on the inner wall of the protective frame. There are two sets of fixing plates, and a column is movably installed between the two sets of fixing plates. A column is fixedly installed on one side of each set of fixing plates. A rectangular groove is opened on one side of the column. A magnet A and a gear are fixedly installed on the outer surface of the column. The gear meshes with a rack.
4. The medical solid-state microwave source over-temperature protection device according to claim 3, characterized in that: The movable component includes two sets of fixed rods fixedly installed on the inner wall of the protective frame. A connecting rod is movably arranged between the two sets of fixed rods. A magnet B is fixedly installed on the upper surface of the connecting rod. The magnet B and the magnet A are on the same horizontal line. A base is fixedly installed on the lower surface of the connecting rod. A roller is provided at the bottom of the base. The magnet B and the magnet A are magnetically connected.
5. The medical solid-state microwave source over-temperature protection device according to claim 4, characterized in that: Water pipes are fixedly installed on both sides of the water tank. A small water pump is fixedly installed on the outer surface of the water pipes. An atomizing nozzle is fixedly installed at one end of the water pipe. A support plate is fixedly installed on one side of the motor. One end of the support plate is fixedly connected to one side of the protective frame. The atomizing nozzle is located in a round hole opened on one side of the protective frame. The fan is located in front of the atomizing nozzle.
6. The medical solid-state microwave source over-temperature protection device according to claim 4, characterized in that: The microwave source body has a heat dissipation vent on its surface and a ventilation vent on one side. Activated carbon absorbent cotton is fixedly installed on the inner wall of the ventilation vent, and the ventilation vent is located inside the protective frame.