Cable and ultrasonic knife transducer

Abstract

The invention relates to the technical field of cables, and particularly discloses a cable and an ultrasonic knife transducer. The cable comprises a cable core part and a protection part wrapping the cable core part. The cable core part comprises a central cable and three single-stranded conductors, each single-stranded conductor is a first twisted pair and comprises a first copper wire, a first reinforcing wire and a first conductor protection layer wrapping the first twisted pair, each first reinforcing wire comprises a first reinforcing wire and a first copper sheet arranged outside the first reinforcing wire, the central cable is a second twisted pair, and each first conductor protection layer comprises a second copper sheet arranged outside the first reinforcing wire. Comprising two twisted-pair wires which are mutually wound and a second wire protection layer which wraps the second twisted-pair wire, the twisted-pair wire is a third twisted-pair wire and comprises a second copper wire, a second reinforcing wire and a third wire protection layer which wraps the third twisted-pair wire, the second reinforcing wire comprises a second reinforcing wire and a second copper sheet which is arranged outside the second reinforcing wire, and the second copper sheet is arranged outside the second reinforcing wire. On the radial cross section of the cable, all the single-strand wires are located on the same side of the central cable. According to the cable, through structural improvement, the anti-bending fatigue strength and the welding reliability of end connection are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cables, in particular to a cable and an ultrasonic knife transducer. BACKGROUND

[0002] As the core carrier of power and signal transmission, the reliability of the cable is directly related to the stable operation of the entire electrical system. In the fields of industrial automation, medical equipment, and robots, the cable not only needs to transmit power and signals, but also often works in harsh conditions such as continuous, high-frequency bending, twisting, rotating, and winding. In addition, some application scenarios also require the cable to withstand repeated high-temperature disinfection processes. Such a combination of harsh working conditions puts high requirements on the mechanical strength and durability of the cable.

[0003] In the prior art, to improve the mechanical strength of the cable, the commonly used method is to fill the anti-tension fiber or Kevlar reinforcing wire in the gap between the conductors in the outer protective layer. This method can indeed play a certain protective role when dealing with low-frequency and small-amplitude bending. However, with the continuous improvement of device operation frequency, the limitations of such traditional reinforcing structures are increasingly prominent. The fundamental reason is that this "external filling" type of reinforcing method does not fundamentally strengthen the conductor itself. Under high-frequency and high-intensity repeated bending stress, stress will be concentrated on the most fragile copper conductor part of the conductor. Long-term accumulation can easily cause metal fatigue of some single conductors inside the cable, and then cause internal strand breakage or even complete rupture. More seriously, stress will be transmitted to the soldered end points of the conductor and the internal elements of the electrical appliance through the conductor, causing the soldered points to loosen, become loose, or even fall off, ultimately causing the overall function of the cable to fail.

[0004] Therefore, the service life of the cable structure in the prior art has been difficult to meet the increasing demand for high-frequency bending and harsh environments. Device manufacturers and end users are both faced with the problem of high maintenance costs and long equipment downtime caused by frequent cable damage. SUMMARY

[0005] The purpose of the present application is to provide a cable and an ultrasonic knife transducer to improve the bending fatigue resistance of the cable and the soldering reliability of the termination.

[0006] To achieve this purpose, the present application adopts the following technical solutions:

[0007] A cable includes a core and a protective part; the core includes a central cable and three single wires, the single wires are a first pair of twisted wires, including a first copper wire, a first reinforcing wire and a first wire protection layer covering the first pair of twisted wires, the first reinforcing wire includes a first reinforcing filament and a first copper sheet arranged outside the first reinforcing filament, the central cable is a second pair of twisted wires, including two twisted pair wires and a second wire protection layer covering the second pair of twisted wires, the twisted pair wires are a third pair of twisted wires, including a second copper wire, a second reinforcing wire and a third wire protection layer covering the third pair of twisted wires, the second reinforcing wire includes a second reinforcing filament and a second copper sheet arranged outside the second reinforcing filament, in the radial cross section of the cable, all the single wires are located on the same side of the central cable; the protective part covers the core.

[0008] As an optional technical solution of the cable, the second wire protection layer includes a spiral layer and an inner protective sleeve which are sequentially sleeved on the second pair of twisted wires from inside to outside.

[0009] As an optional technical solution of the cable, the material of the spiral layer is a metal wire.

[0010] As an optional technical solution of the cable, the protective part includes a braided layer, a rubber layer and an outer protective sleeve which are sequentially sleeved on the core from inside to outside.

[0011] As an optional technical solution of the cable, the material of the braided layer is a metal wire; and / or, the material of the rubber layer is PTFE.

[0012] As an optional technical solution of the cable, the core further includes two filling filaments, and the two filling filaments are located on both sides of the three single wires.

[0013] As an optional technical solution of the cable, the material of the filling filament is Kevlar.

[0014] As an optional technical solution of the cable, the cross section of the filling filament is an oval shape.

[0015] As an optional technical solution of the cable, the material of the first reinforcing filament is Kevlar; and / or, the material of the second reinforcing filament is Kevlar.

[0016] An ultrasonic knife transducer includes a handle connecting cable plug, a knife head connecting part and the above-mentioned cable, and the cable electrically connects the handle connecting cable plug and the knife head connecting part.

[0017] The beneficial effects of the present application are as follows:

[0018] The cable effectively improves the bending resistance and durability of the wire by arranging the first reinforcing wire in the first twisted pair and the second reinforcing wire in the second twisted pair, so that the cable is suitable for high-frequency bending and high-temperature sterilization environment. The internal structure of the twisted pair wire and the single wire is consistent. By adding the first reinforcing wire to the single wire, the strength of the single wire is strengthened, so that the first copper wire for conducting and transmitting electrical signals is not easy to break down in high-frequency bending, so that the single wire has stronger bending resistance during high-frequency bending use. By adding the second reinforcing wire to the twisted pair wire, the strength of the twisted pair wire is strengthened, so that the second copper wire for conducting and transmitting electrical signals is not easy to break down in high-frequency bending, so that the twisted pair wire has stronger bending resistance during high-frequency bending use. Moreover, the first wire protection layer plays an insulating and protective role, and the outer layer of the first reinforcing wire is wrapped with the first copper sheet, so that the first reinforcing wire can be welded with the first copper wire to the external electrical element, thereby improving the welding strength of the single wire and the external electrical element and improving the conductivity efficiency; the third wire protection layer plays an insulating and protective role, and the outer layer of the second reinforcing wire is wrapped with the second copper sheet, so that the second reinforcing wire can be welded with the second copper wire to the external electrical element, thereby improving the welding strength of the twisted pair wire and the external electrical element and improving the conductivity efficiency. In addition, the layout of all single wires on one side of the central cable optimizes the spatial structure of the cable, facilitates installation and wiring, thereby improving the reliability of the cable in the frequent bending environment and ensuring the compactness and stability of the overall cable.

[0019] The ultrasonic knife transducer adopts the above-mentioned cable to connect the handle connecting cable plug and the knife head connecting part. The high bending resistance, electromagnetic shielding ability and high temperature resistance of the cable enable it to withstand frequent twisting, rotation, winding and high temperature sterilization, reduce the damage probability, thereby prolong the overall service life of the ultrasonic knife transducer and ensure the stability and safety of medical operation. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a cross-sectional view of the cable provided by the embodiment of the present application;

[0021] Figure 2 is a cross-sectional view of the single wire provided by the embodiment of the present application;

[0022] Figure 3 is a cross-sectional view of the twisted pair wire provided by the embodiment of the present application;

[0023] Figure 4 is a structural schematic view of the ultrasonic knife transducer provided by the embodiment of the present application.

[0024] In the figure:

[0025] 1. Outer protective sleeve; 2. Adhesive tape layer; 3. Braided layer; 4. Inner protective sleeve; 5. Spiral layer; 6. Twisted pair wire; 61. Third wire protection layer; 62. Second copper foil; 63. Second reinforcing wire; 64. Second copper wire; 7. Filler wire; 8. Single strand wire; 81. First wire protection layer; 82. First copper foil; 83. First reinforcing wire; 84. First copper wire; 9. Handle connecting cable plug; 10. Blade head connecting part. Detailed Implementation

[0026] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The terms "first position" and "second position" refer to two different positions. Furthermore, "above," "on top of," and "over" the first feature in relation to the second feature includes the first feature directly above and diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "under," and "below" the first feature in relation to the second feature includes the first feature directly below and diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0030] like Figures 1 to 3 As shown, the present invention provides a cable including a cable core and a protective portion; the cable core includes a central cable and three single-strand conductors 8, each single-strand conductor 8 being a first twisted pair, including a first copper wire 84, a first reinforcing wire, and a first conductor protective layer 81 covering the first twisted pair; the first reinforcing wire includes a first reinforcing wire 83 and a first copper sheath 82 disposed outside the first reinforcing wire 83; the central cable is a second twisted pair, including two intertwined twisted conductors 6 and a second conductor protective layer covering the second twisted pair; the twisted conductors 6 are third twisted pairs, including a second copper wire 64, a second reinforcing wire, and a third conductor protective layer 61 covering the third twisted pair; the second reinforcing wire includes a second reinforcing wire 63 and a second copper sheath 62 disposed outside the second reinforcing wire 63; in the radial cross-section of the cable, all single-strand conductors 8 are located on the same side of the central cable; the protective portion covers the cable core.

[0031] This cable effectively improves the bending strength and durability of the conductors by incorporating a first reinforcing wire in the first twisted pair and a second reinforcing wire in the second twisted pair, making the cable suitable for high-frequency bending and high-temperature sterilization environments. The internal structures of the twisted pair conductors 6 and the single-strand conductors 8 are identical. By adding a first reinforcing wire 83 to the single-strand conductor 8, its strength is enhanced, making the first copper wire 84, used for conducting electricity and transmitting electrical signals, less prone to breakage and failure during high-frequency bending, thus giving the single-strand conductor 8 stronger bending resistance during high-frequency bending use. Similarly, by adding a second reinforcing wire 63 to the twisted pair conductor 6, its strength is enhanced, making the second copper wire 64, used for conducting electricity and transmitting electrical signals, less prone to breakage and failure during high-frequency bending, thus giving the twisted pair conductor 6 stronger bending resistance during high-frequency bending use. Furthermore, the first conductor protective layer 81 serves as insulation and protection, and the first reinforcing wire 83 is wrapped with a first copper foil 82, allowing the first reinforcing wire 83 to be welded together with the first copper wire 84 to external electrical components. This improves the welding strength between the single-strand conductor 8 and the external electrical components, thereby enhancing conductivity. The third conductor protective layer 61 also serves as insulation and protection, and the second reinforcing wire 63 is wrapped with a second copper foil 62, allowing the second reinforcing wire 63 to be welded together with the second copper wire 64 to external electrical components. This further improves the welding strength between the twisted pair conductor 6 and the external electrical components, enhancing conductivity. In addition, the layout of all single-strand conductors 8 located on one side of the central cable optimizes the cable's spatial structure, facilitating installation and wiring, thus improving the overall reliability of the cable under frequent bending conditions and ensuring the overall compactness and stability of the cable.

[0032] In this embodiment, the second conductor protection layer includes a spiral layer 5 and an inner protective sleeve 4 that are sequentially sleeved on the second twisted pair from the inside out.

[0033] The second conductor protection layer comprises a spiral layer 5 and an inner protective sleeve 4, providing double protection for the central cable. The spiral layer 5 enhances the cable's flexibility and torsional resistance, reduces stress concentration during bending, and protects the twisted-pair conductors 6 from external electrical interference. The inner protective sleeve 4 provides additional insulation and mechanical protection, preventing damage to the internal twisted-pair conductors 6 during frequent bending, thereby extending the cable's service life. This dual-layer protection structure works synergistically to prevent damage to the internal conductors during bending or twisting, extending the cable's lifespan.

[0034] Furthermore, the spiral layer 5 is made of metal wire.

[0035] The spiral layer 5 is made of metal wire, which not only provides mechanical support for the cable, but also provides effective electromagnetic shielding, effectively isolating external electromagnetic interference, protecting internal signal transmission from external electromagnetic interference, ensuring the stability and accuracy of signal transmission in complex electromagnetic environments, ensuring the stable operation of the cable, and thus making it suitable for sensitive application scenarios.

[0036] In this embodiment, the protective part includes a braided layer 3, an adhesive layer 2, and an outer protective sleeve 1, which are sequentially fitted onto the cable core from the inside out.

[0037] The protective layer, through its multi-layered structure of braided layer 3, adhesive layer 2, and outer protective sleeve 1, achieves comprehensive protection, enhancing the cable's environmental adaptability and enabling reliable operation even under high temperature, humidity, or interference-prone conditions. Braided layer 3 provides electromagnetic shielding and tensile strength, protecting the cable from external electrical interference. Adhesive layer 2 provides insulation, corrosion resistance, and fire retardant protection. The outer protective sleeve 1 provides overall waterproofing, insulation, abrasion resistance, and mechanical protection, improving safety and durability.

[0038] In one embodiment of this invention, the braided layer 3 is made of metal wire, and the adhesive layer 2 is made of PTFE.

[0039] The braided layer 3 is made of metal wire, which further enhances the electromagnetic shielding effect and prevents signal interference. The adhesive layer 2 is made of PTFE (Polytetrafluoroethylene), which utilizes the high temperature resistance, chemical corrosion resistance and excellent insulation properties of PTFE to enhance the insulation and flame retardant properties of the protective part, enabling the cable to withstand high temperature sterilization and maintain its long-term stability.

[0040] In another embodiment of this invention, only the material of the braided layer 3 is limited to metal wire. In yet another embodiment of this invention, only the material of the adhesive tape layer 2 is limited to PTFE.

[0041] In this embodiment, the cable core also includes two filler wires 7, which are located on both sides of the three single-strand conductors 8.

[0042] By setting two filler wires 7 on both sides of the single-strand conductor 8, the internal structure of the cable is balanced, deformation and stress concentration during bending are reduced, and the tensile and bending strength of the cable is enhanced. The filler wires 7 fill the gaps in the cable core, improve the roundness and structural stability of the cable, and prevent the displacement of the central cable and single-strand conductor 8 or damage to the welding points during bending.

[0043] Furthermore, the filler filament 7 is made of Kevlar.

[0044] Kevlar has high strength and flexibility, which further enhances the tensile and bending resistance of filler wire 7, making the cable less prone to deformation or breakage during frequent bending or stretching, thus improving its durability.

[0045] For example, the cross-section of the filler wire 7 is elliptical.

[0046] The elliptical design offers better filling efficiency and space utilization, allowing it to better adapt to the internal space of the cable, making the cable structure more compact, reducing internal voids, thereby optimizing bending performance and reducing stress concentration, and enhancing the overall mechanical strength and flexibility of the cable.

[0047] In one embodiment of this invention, the first reinforcing wire 83 is made of Kevlar; and the second reinforcing wire 63 is made of Kevlar.

[0048] The reinforcing wires made of Kevlar give the conductor high strength and fatigue resistance, allowing the conductor to maintain its structural integrity during repeated bending. This effectively prevents the copper wire from breaking during high-frequency bending, while maintaining the conductivity of the central cable and individual conductors, significantly improving the service life and reliability of the cable in harsh operating environments.

[0049] In another embodiment of this invention, only the material of the first reinforcing wire 83 is limited to Kevlar. In yet another embodiment of this invention, only the material of the second reinforcing wire 63 is limited to Kevlar.

[0050] like Figures 1 to 4 As shown, the present invention also provides an ultrasonic scalpel transducer, including a handle connecting cable plug 9, a blade head connecting portion 10, and the aforementioned cable, wherein the cable electrically connects the handle connecting cable plug 9 and the blade head connecting portion 10. Specifically, the ultrasonic scalpel transducer is a reusable product that can be sterilized at high temperatures.

[0051] The ultrasonic scalpel transducer uses the aforementioned cable connection handle connector 9 and scalpel head connection part 10. The cable's high bending strength, electromagnetic shielding ability, and high temperature resistance enable it to withstand frequent twisting, rotation, winding, and high-temperature sterilization, reducing the probability of damage and thus extending the overall service life of the ultrasonic scalpel transducer, ensuring the stability and safety of medical operations.

[0052] In this embodiment, the blade head connection part 10 is used to connect the handle and the blade head, and the handle connection cable plug 9 is used to connect the handle and the ultrasonic scalpel main unit. Specifically, the ultrasonic scalpel main unit is a USG10 type main unit.

[0053] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A cable, characterized in that, include: The cable core includes a central cable and three single-strand conductors (8). The single-strand conductors (8) are first twisted pairs, including a first copper wire (84), a first reinforcing wire, and a first conductor protection layer (81) covering the first twisted pair. The first reinforcing wire includes a first reinforcing wire (83) and a first copper sheath (82) disposed outside the first reinforcing wire (83). The central cable is a second twisted pair, including two intertwined twisted conductors (6) and a second conductor protection layer covering the second twisted pair. The twisted conductors (6) are third twisted pairs, including a second copper wire (64), a second reinforcing wire, and a third conductor protection layer (61) covering the third twisted pair. The second reinforcing wire includes a second reinforcing wire (63) and a second copper sheath (62) disposed outside the second reinforcing wire (63). In the radial cross-section of the cable, all the single-strand conductors (8) are located on the same side of the central cable. The protective section covers the cable core.

2. The cable according to claim 1, characterized in that, The second conductor protection layer includes a spiral layer (5) and an inner protective sleeve (4) sequentially sleeved on the second twisted pair from the inside out.

3. The cable according to claim 2, characterized in that, The spiral layer (5) is made of metal wire.

4. The cable according to claim 1, characterized in that, The protective part includes a braided layer (3), an adhesive layer (2), and an outer protective sleeve (1) that are sequentially fitted onto the cable core from the inside out.

5. The cable according to claim 4, characterized in that, The braided layer (3) is made of metal wire; and / or, The adhesive tape layer (2) is made of PTFE.

6. The cable according to claim 1, characterized in that, The cable core also includes two filler wires (7), which are located on both sides of the three single-strand conductors (8).

7. The cable according to claim 6, characterized in that, The filler wire (7) is made of Kevlar.

8. The cable according to claim 6, characterized in that, The cross-section of the filler wire (7) is elliptical.

9. The cable according to any one of claims 1-8, characterized in that, The first reinforcing wire (83) is made of Kevlar; and / or, The material of the second reinforcing wire (63) is Kevlar.

10. An ultrasonic scalpel transducer, characterized in that, It includes a handle connection cable plug (9), a blade connection portion (10), and a cable according to any one of claims 1-9, wherein the cable electrically connects the handle connection cable plug (9) and the blade connection portion (10).

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