Novel ultrasonic cutting knife

Abstract

The utility model relates to a novel ultrasonic cutting knife which comprises a support, a base plate and a transformer which are isolated from each other are arranged in the support. The cutting knife body is installed at one end of the support, and the cutting end of the cutting knife body extends towards the outside of the support; the self-resetting key is arranged at one end, close to the cutting knife body, of the support, the layout position of the self-resetting key is matched with a natural pressing posture when the cutting knife is held by hand for operation, and the self-resetting key is used for controlling the cutting knife body to be powered on and off; according to the ultrasonic cutting knife, the internal substrate and the transformer are arranged in an isolated mode, the utilization rate of the internal space of the ultrasonic cutting knife can be optimized, the cross section size of the transformer integrated on the substrate can be reduced, the diameter size of the ultrasonic cutting knife is effectively reduced, and the holding comfort degree is improved; and the self-resetting key is mounted on the bracket close to one end of the cutting knife body, so that an operator can naturally press the ultrasonic cutting knife when holding the ultrasonic cutting knife by hand, and the use convenience and the operation efficiency are greatly improved.

Description

Technical Field

[0001] This application relates to the field of ultrasonic cutting tool technology, and in particular to a novel ultrasonic cutting knife. Background Technology

[0002] An ultrasonic cutter is a power tool that achieves efficient cutting through high-frequency mechanical vibration. Its working principle involves converting electrical energy into high-frequency mechanical vibrations of 20-40kHz via an ultrasonic transducer, which is then transmitted to the cutting head via an amplitude transformer, thus enabling precise cutting of materials such as plastics, rubber, and food. Due to its advantages such as precise cutting, clean kerf, and small heat-affected zone, this type of tool is widely used in medical, packaging, and food processing fields.

[0003] However, existing ultrasonic cutters have significant drawbacks: First, because the internal transformer is directly integrated onto the main control board, and traditional transformers generally use a square structure, the device is also made square, resulting in a bulky overall appearance. Furthermore, the excessively large grip area (the largest cross-sectional area of ​​current ultrasonic cutters is 30mm) easily causes hand fatigue during prolonged operation. Second, the power switch in existing products is mostly located in the circuit compartment on the side wall of the device, far from where the operator's fingers naturally rest. Frequent adjustments to the grip are required to activate the switch, reducing ease of operation and affecting the continuity and accuracy of cutting operations. In addition, this layout causes a shift in the device's center of gravity, further exacerbating operator fatigue. Utility Model Content

[0004] To address the problems mentioned in the background art regarding existing ultrasonic cutting knives, such as their bulky shape, excessive size leading to hand fatigue, and the power button being far from the finger area resulting in poor operability, this application provides a novel ultrasonic cutting knife.

[0005] The novel ultrasonic cutting tool provided in this application adopts the following technical solution:

[0006] A novel ultrasonic cutting tool, comprising:

[0007] The support frame contains mutually isolated base plates and transformers;

[0008] The cutting blade body is mounted on one end of the bracket, and its cutting end extends outward from the bracket;

[0009] The self-reset button is located at one end of the bracket near the cutter body. Its layout is adapted to the natural pressing posture when holding the cutter and is used to control the power-on and power-off of the cutter body.

[0010] By adopting the above technical solution, the internal substrate and transformer are arranged in isolation, which optimizes the internal space utilization of the ultrasonic cutter and reduces the cross-sectional size of the transformer when integrated on the substrate. This effectively reduces the diameter of the ultrasonic cutter, improves the comfort of holding it, and allows for easy operation by installing a self-resetting button on the bracket near the cutter body. This greatly enhances the ease of use and operational efficiency.

[0011] Optionally, the self-reset button is an instantaneous trigger button. When pressed, it activates the circuit to make the cutting blade body work, and when released, it automatically resets and cuts off the power.

[0012] By adopting the above technical solution and using an instantaneous trigger-type self-reset button design, an intuitive operation mode of "press to work, release to cut off power" is realized. This not only avoids the trouble of frequent operation required by traditional side wall switches, but also ensures safety. When the operator accidentally releases the button, the power can be cut off immediately, effectively preventing the risk of misoperation.

[0013] Optionally, the bracket has a first mounting area, a second mounting area and a third mounting area inside, and the substrate, the transformer and the cutting blade body are respectively mounted in the first mounting area, the second mounting area and the third mounting area. A first partition is provided between the first mounting area and the second mounting area, and a second partition is provided between the second mounting area and the third mounting area. A wire groove is formed between the first partition and the second partition to facilitate the passage of wires.

[0014] By adopting the above technical solution, the layout of three independent installation areas and double partitions effectively isolates the substrate, transformer and cutting blade body within a limited cylindrical space. The structural design of the wire groove ensures reliable connection between modules and avoids electromagnetic interference caused by messy wiring. The overall structure is compact and easy to maintain.

[0015] Optionally, a display screen and operation keys are mounted on the outside of the bracket, and the display screen and operation keys are respectively connected to the base plate; the operation keys include a power button and a function button, the power button is used to connect the ultrasonic cutting blade to the main power supply, and the function button is used to adjust the working mode of the ultrasonic cutting blade.

[0016] By adopting the above technical solution, the main power of the device can be turned on by the power button, and the working mode of the cutting blade body can be adjusted by using the function buttons, such as vibration frequency and vibration amplitude. Furthermore, when adjusting the working mode, the operation can be visualized through the display screen, which significantly improves the functionality of the product.

[0017] Optionally, it also includes an outer housing installed outside the bracket. The outer housing has a cylindrical structure, and a transparent viewing window is installed on the side wall of the outer housing corresponding to the position of the display screen. The operation keys pass through the side wall of the outer housing and extend outward.

[0018] By adopting the above technical solution, the cylindrical outer shell combined with the transparent observation window provides both protection and visibility, protecting the internal precision components from external damage while ensuring that the operating parameters are visible in real time.

[0019] Optionally, the inner wall of the outer casing is provided with a guide groove along its axial direction, and the outer wall of the bracket has a guide portion that protrudes outward and can be placed in the guide groove; the inner wall of the outer casing is provided with a slot, and the outer surface of the bracket has a snap tongue that can be elastically deformed, and the snap tongue is placed in the slot, thereby locking the bracket and the outer casing together.

[0020] By adopting the above technical solution, the guide groove and guide part can ensure that the outer shell and the bracket are quickly and accurately aligned during the assembly process. The design of the slot and the tongue can ensure the structural stability after assembly, so as to realize the rapid and stable assembly between the outer shell and the bracket.

[0021] Optionally, the transformer has a cylindrical structure, with its axis parallel to the length direction of the support.

[0022] By adopting the above technical solution, compared with the traditional square structure transformer, the lateral space inside the ultrasonic cutting knife can be saved, making the whole product more ergonomic with a slender handle structure, and more comfortable to operate.

[0023] Optionally, a light panel and a diffuser are installed inside the bracket. The light panel and the diffuser are respectively sleeved on the cutting blade body, and the diffuser is located on the side of the cutting blade body closer to the cutting end.

[0024] By adopting the above technical solution, the lamp board and diffuser sheet constitute the lighting system of the ultrasonic cutting knife, forming uniform shadowless lighting at the cutting end to reduce the difficulty of operation.

[0025] Optionally, a sleeve is installed at one end of the bracket near the cutter body, and the sleeve is provided with a pressing area corresponding to the position of the self-reset button.

[0026] By adopting the above technical solution, the sleeve not only protects the internal button mechanism, but also maintains the operating sensitivity through the design of a specific pressing area. This structure is dustproof and waterproof, while ensuring clear feedback of button touch and extending the service life of the switch.

[0027] Optionally, a cover body is also included, which is detachably attached to the sleeve.

[0028] By adopting the above technical solution, the detachable cover is mainly used to protect the cutting head of the cutter when it is not in use, so as to avoid accidental injury or damage to the cutting head.

[0029] Optionally, the outer wall of the bracket is provided with several heat dissipation holes.

[0030] The above technical solution is mainly used to achieve rapid heat dissipation inside the ultrasonic cutting tool, and to avoid damage to electrical components caused by excessive local temperature.

[0031] Optionally, the bracket includes a first bracket and a second bracket that are detachably connected, with the first and second partitions located within the first bracket.

[0032] By adopting the above technical solution, the bracket is divided into a first bracket and a second bracket that can be detachably connected, which is mainly used to meet the installation requirements of internal components and makes assembly more convenient.

[0033] Optionally, the substrate integrates a main control module, a power management module, and a power drive module, with the power management module extending to the end of the bracket; wherein, the power drive module includes a half-bridge drive circuit, the input of which is connected to the main control module, and the output of which is connected to the cutting blade body via a boost resonant network.

[0034] The above technical solution is mainly used to realize the circuit control of the ultrasonic cutting knife, so as to organically integrate the control, power supply and power drive system and realize the normal operation of the ultrasonic cutting knife.

[0035] Optionally, the ultrasonic cutting blade has a cylindrical shape with a diameter of 23mm-25mm.

[0036] By adopting the above technical solution, the cylindrical structure design significantly improves the grip comfort of traditional square cutters. Compared with the 30mm size of traditional square cutters, the size of this cylindrical structure is effectively reduced, making the entire product structure more compact and improving the comfort during use.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] This invention isolates the internal substrate from the transformer, which optimizes the internal space utilization of the ultrasonic cutter and reduces the cross-sectional size of the transformer integrated on the substrate, thereby effectively reducing the diameter of the ultrasonic cutter and improving the comfort of holding it. Furthermore, a self-resetting button is installed on the bracket near the cutter body, which allows the operator to press the ultrasonic cutter naturally when holding it, greatly improving ease of use and operational efficiency. Attached Figure Description

[0039] Figure 1 This is a perspective view of the present invention;

[0040] Figure 2 This is a perspective view of the present invention with the cover concealed.

[0041] Figure 3 This is an exploded view of the present invention;

[0042] Figure 4 This is a diagram of the internal structure of this utility model;

[0043] Figure 5 This is an exploded view of the connection between the first and second supports of this utility model;

[0044] Figure 6 This is a partial exploded view of the structure of this utility model;

[0045] Figure 7 This is a perspective view of the outer shell of this utility model;

[0046] Figure 8 This is a system flowchart of this utility model.

[0047] Explanation of reference numerals in the attached figures:

[0048] 1. Outer shell; 101. Guide groove; 102. Slot; 2. Observation window; 3. First bracket; 301. Guide part; 302. First mounting area; 303. First partition; 304. Second mounting area; 305. Second partition; 306. Positioning hole; 307. Third mounting area; 308. Wire groove; 4. Display screen; 5. Substrate; 6. Operation key; 7. Transformer; 8. Self-reset button; 9. Lamp board; 10. Diffuser sheet; 11. Cutting blade body; 12. Sleeve; 1201. Pressing area; 13. Cover; 14. Second bracket; 1401. Limiting block; 1402. Limiting post; 15. Tongue; 16. Heat dissipation hole. Detailed Implementation

[0049] The present application will be further described in detail below with reference to the accompanying drawings.

[0050] like Figure 1-8 As shown in the embodiment of this application, a novel ultrasonic cutting blade is disclosed. The ultrasonic cutting blade has a cylindrical structure with a diameter of 23mm-25mm, and includes:

[0051] The bracket internally houses an isolated substrate 5 and a transformer 7, which are connected by wires. The substrate 5 is a circuit board, specifically a PCB board, but it can also be a ceramic circuit board, a metal circuit board, or a silicon-based circuit board. In this example, the bracket includes a detachably connected first bracket 3 and a second bracket 14, which are connected by screws. The first bracket 3 has a positioning hole 306 inside, and the second bracket 14 extends from the center of its inner wall to form a limiting post 1402. The limiting post 1402 can be inserted into the positioning hole 306 to form a preliminary positioning, and then the two are tightly assembled by screw connection. In other embodiments, the two can also be assembled by snap-fit ​​connection.

[0052] The isolation of substrate 5 and transformer 7 is to replace the traditional structure in which transformer 7 is integrated on substrate 5. On the one hand, it can reduce the lateral dimension, thereby reducing the overall diameter of the ultrasonic cutting blade. On the other hand, it can also optimize the internal layout structure of the product and avoid the problem of center offset.

[0053] It also includes a cutting blade body 11, which is installed at one end of the bracket and its cutting end extends outward from the bracket. The cutting blade body 11 is an ultrasonic transducer blade. Its internal structure and principle are conventional designs in the prior art, and will not be described in detail here. The cutting blade body 11 is connected to the substrate 5 by a wire.

[0054] The self-reset button 8 is located at one end of the bracket near the cutter body 11. Its position is adapted to the natural pressing posture when holding the cutter, and it is used to control the power-on and power-off of the cutter body 11. In this example, the self-reset button 8 is a momentary trigger button. When pressed, it conducts the circuit to make the cutter body 11 work, and it automatically resets and cuts off the power when released. In actual use, the user holds the lower end of the ultrasonic cutter, with the web of their hand located at the position of the self-reset button 8, so that the fingers can press the self-reset button 8 to realize the opening and closing of the cutter body 11.

[0055] Specifically, the bracket has a first mounting area 302, a second mounting area 304, and a third mounting area 307 inside. More specifically, the first mounting area 302, the second mounting area 304, and the third mounting area 307 are arranged sequentially along the length of the bracket, so that the display screen 4 and the operation keys 6 are located near the middle and tail of the bracket. The substrate 5, the transformer 7, and the cutting blade body 11 are respectively installed in the first mounting area 302, the second mounting area 304, and the third mounting area 307. A first partition 303 is provided between the first mounting area 302 and the second mounting area 304, and a second partition 305 is provided between the second mounting area 304 and the third mounting area 307. A wire groove 308 is formed between the first partition 303 and the second partition 305 to facilitate the passage of wires. The first partition 303 and the second partition 305 are located inside the first bracket 3. The second mounting area 304 formed by the first partition 303 and the second partition 305 can facilitate the installation and positioning of the transformer 7. The second bracket 14 has an outwardly protruding limiting block 1401 near the wire groove 308. After the first bracket 3 and the second bracket 14 are assembled, the limiting block 1401 can limit the wire in the guide groove 101 to prevent the wire from coming out of the wire groove 308.

[0056] Specifically, a display screen 4 and operation keys 6 are mounted on the outside of the bracket. The operation keys 6 have elongated keycaps on the outside. The display screen 4 and operation keys 6 are respectively connected to the base plate 5. The operation keys 6 include a power button and a function button. The power button is used to connect the ultrasonic cutting blade to the main power supply, and the function button is used to adjust the working mode of the ultrasonic cutting blade. When pressing the power button and the function button, the working mode of the product can be viewed through the display screen 4. It has the advantages of simple operation and good visualization effect.

[0057] Specifically, it also includes an outer shell 1 installed outside the bracket. The outer shell 1 is a cylindrical structure. A transparent viewing window 2 is installed on the side wall of the outer shell 1 at a position corresponding to the display screen 4. The operation key 6 passes through the side wall of the outer shell 1 and extends outward. The content displayed on the display screen 4 can be viewed through the viewing window 2. During operation, the two ends of the long strip keycap can be pressed to achieve the effects of powering on the main power and adjusting the working mode.

[0058] Specifically, the inner wall of the outer shell 1 is provided with a guide groove 101 along its axial direction, and the outer wall of the bracket has a guide portion 301 that protrudes outward and can be placed in the guide groove 101. In this example, there are two guide grooves 101 on the inner wall of the outer shell 1. In other embodiments, there may be multiple guide grooves 101. The number of guide portions 301 is the same as the number of guide grooves 101. During the assembly process, the guide portion 301 cooperates with the guide groove 101 to achieve precise installation of the outer shell 1 on the bracket. The inner wall of the outer shell 1 is provided with a locking groove 102, and the outer surface of the bracket has a locking tongue 15 that can be elastically deformed. The locking tongue 15 is placed in the locking groove 102, thereby locking the bracket and the outer shell 1 together.

[0059] Specifically, the transformer 7 has a cylindrical structure with its axis parallel to the length direction of the support, so as to make full use of the space inside the support and reduce the size of the ultrasonic cutting blade.

[0060] Specifically, the bracket is equipped with a lamp plate 9 and a diffuser plate 10. The lamp plate 9 and the diffuser plate 10 are respectively sleeved on the cutting blade body 11, and the diffuser plate 10 is close to the cutting end of the cutting blade body 11. In this example, the lamp plate 9 is an LED lamp, which is connected to the substrate 5 and is used to provide illumination during operation. The diffuser plate 10 is a ring-shaped light-transmitting component, which is mainly used to perform secondary light distribution when the LED lamp is working, to form uniform diffused illumination in the cutting area, eliminate local light spots and improve the uniformity of illumination on the working surface.

[0061] Specifically, a sleeve 12 is installed at one end of the bracket near the cutter body 11. The sleeve 12 is provided with a pressing area 1201 corresponding to the position of the self-reset button 8. The sleeve 12 can be made of materials such as nylon, rubber, silicone or plastic to increase the friction with the human hand and make the grip more stable. When in use, the self-reset button 8 can be pressed by pressing the pressing area 1201.

[0062] Specifically, it also includes a cover 13, which is detachably connected to the sleeve 12.

[0063] Specifically, the outer wall of the bracket is provided with a number of heat dissipation holes 16. The heat dissipation holes 16 can be specifically located near the transformer 7, the cutting blade body 11, and near the substrate 5, which can avoid the problem of damage to components caused by excessive local temperature.

[0064] Specifically, the substrate 5 integrates a main control module, a power management module, and a power drive module, with the power management module extending to the end of the bracket; wherein, the power drive module includes a half-bridge drive circuit, the input of which is connected to the main control module, and the output of which is connected to the cutting blade body 11 via a boost resonant network.

[0065] More specifically, in this example, the main control module uses a 32-bit ARM Cortex-M4 architecture MCU, which is electrically connected to the aforementioned display screen 4, operation keys 6, self-reset button 8, light board 9, and buzzer; the power management module includes a USB PD protocol power supply unit, whose first output terminal supplies power to the main control module, and whose second output terminal provides operating voltage to the boost resonant network through an isolation circuit.

[0066] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A novel ultrasonic cutting blade characterized in that, It includes: The bracket is internally provided with mutually isolated substrate (5) and transformer (7); Cutting knife body (11) is installed at one end of the bracket, and its cutting end extends to the outside of the bracket; Self-resetting button (8) is arranged at one end of the bracket close to cutting knife body (11), and its layout position is adapted to the natural pressing posture during handheld cutting knife operation, for controlling the power-on start and stop of cutting knife body (11).

2. A novel ultrasonic cutting blade as claimed in claim 1, wherein, The self-resetting button (8) is a momentary trigger type button, which is turned on when pressed to make cutting knife body (11) work, and is automatically reset after being released.

3. A novel ultrasonic cutting blade as claimed in claim 1, wherein, The inside of the bracket is provided with a first mounting area (302), a second mounting area (304) and a third mounting area (307), the substrate (5), the transformer (7) and the cutting knife body (11) are respectively installed in the first mounting area (302), the second mounting area (304) and the third mounting area (307), the first mounting area (302) and the second mounting area (304) are provided with a first partition (303), the second mounting area (304) and the third mounting area (307) are provided with a second partition (305), and the first partition (303) and the second partition (305) form a wire slot (308) for facilitating wire passing.

4. A novel ultrasonic cutting blade as claimed in claim 1, wherein, The outside of the bracket is provided with a display screen (4) and an operation key (6), the display screen (4) and the operation key (6) are connected with the substrate (5) respectively; the operation key (6) includes a power button and a function button, the power button is used for connecting the ultrasonic cutting knife to the main power supply, and the function button is used for adjusting the working mode of the ultrasonic cutting knife.

5. A novel ultrasonic cutting blade as claimed in claim 4, wherein, It also includes an outer shell (1) installed outside the bracket, the outer shell (1) is a cylindrical structure, a transparent observation window (2) is installed on the side wall of the outer shell (1) and corresponds to the position of the display screen (4), and the operation key (6) extends outward through the side wall of the outer shell (1).

6. A novel ultrasonic cutting blade as claimed in claim 5, wherein, The inner wall of the outer shell (1) is provided with a guide groove (101) in the axial direction, the outer wall of the bracket has a guide portion (301) which protrudes outward and can be placed in the guide groove (101); the inner wall of the outer shell (1) is provided with a clamping groove (102), and the outer surface of the bracket has a clamping tongue (15) which can be elastically deformed, the clamping tongue (15) is placed in the clamping groove (102), so that the bracket and the outer shell (1) are clamped and connected.

7. A new ultrasonic cutting blade as claimed in claim 1, wherein, The transformer (7) is a cylindrical structure, and its axis is parallel to the length direction of the bracket.

8. A new ultrasonic cutting blade as claimed in claim 1, wherein, The inside of the bracket is provided with a lamp panel (9) and a diffusion sheet (10), the lamp panel (9) and the diffusion sheet (10) are respectively sleeved on the cutting knife body (11), and the diffusion sheet (10) is close to one side of the cutting end of the cutting knife body (11).

9. A new ultrasonic cutting blade as claimed in claim 1, wherein, The bracket is provided with a sleeve (12) at one end close to the cutting knife body (11), and the sleeve (12) is provided with a pressing area (1201) corresponding to the position of the self-resetting button (8).

10. A novel ultrasonic cutting blade as claimed in claim 9, wherein, It also includes a cover (13) which is detachably connected to the sleeve (12).

11. A new ultrasonic cutting blade as claimed in claim 1, wherein, The outer wall of the bracket is provided with a plurality of heat dissipation holes (16).

12. A new ultrasonic cutting blade as claimed in claim 3, wherein, The support comprises a first support (3) and a second support (14) which are detachably connected, and the first partition plate (303) and the second partition plate (305) are located in the first support (3).

13. A new ultrasonic cutting blade as claimed in claim 1, wherein, The main control module, the power management module and the power drive module are integrated on the substrate (5), the power management module extends to the end position of the support, and the power drive module comprises a half-bridge drive circuit, an input end of the half-bridge drive circuit is connected with the main control module, and an output end of the half-bridge drive circuit is connected with the cutting knife body (11) through a boost resonant network.

14. A new ultrasonic cutting blade as claimed in claim 1, wherein, The ultrasonic cutting knife has a cylindrical structure, and the diameter is 23mm-25mm.

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