Ultrasonic wireless electric energy transmission device with fully-coupled side faces and ultrasonic knife handle

Abstract

The utility model discloses an ultrasonic wireless electric energy transmission device with fully coupled side surface and an ultrasonic knife handle, the ultrasonic wireless electric energy transmission device comprises an ultrasonic transmitter and an ultrasonic receiver, the ultrasonic transmitter comprises a primary side support, a primary side magnetic core and a primary side coil, and the ultrasonic receiver comprises a secondary side support, a secondary side magnetic core and a secondary side coil. The primary side coil, the primary side magnetic core, the secondary side coil and the secondary side magnetic core are respectively of a complete annular structure, the primary side coil is used for connecting an ultrasonic controller, the secondary side coil is used for connecting a load or an ultrasonic transducer, the primary side support is provided with an inner cavity, and the primary side coil and the primary side magnetic core are fixedly arranged in the inner cavity of the primary side support. The secondary coil and the secondary magnetic core are fixedly arranged on the outer wall of the secondary bracket; the primary side magnetic core is coaxially arranged on the outer ring of the secondary side magnetic core in a sleeving mode, and an air gap is formed between the primary side magnetic core and the secondary side magnetic core so that the primary side magnetic core and the secondary side magnetic core can form a full-coupling magnetic circuit. The device is compact in structure and high in energy transmission efficiency.

Description

Technical Field

[0001] This utility model relates to the field of ultrasonic wireless power transmission technology, and in particular to a side-coupled ultrasonic wireless power transmission device and an ultrasonic scalpel handle. Background Technology

[0002] Wireless power transfer technology, also known as contactless power transfer technology, is primarily based on the phenomenon of electromagnetic induction. It works by using current flowing through one coil to generate a magnetic field, which induces an electromotive force in another coil, thus enabling the wireless transmission of electrical energy. In a wireless power transfer system, the magnetic field generated by the transmitting coil is conducted to the receiving coil through a magnetic core. The high permeability of the magnetic core concentrates the magnetic force within the core, focusing and guiding the magnetic field, reducing magnetic leakage, and thereby improving transmission efficiency and system stability.

[0003] With the rapid development of wireless power transmission technology, ultrasonic wireless power transmission has attracted increasing attention due to its high efficiency and non-contact characteristics. However, most existing ultrasonic wireless power transmission devices adopt a vertically coupled design, where the transmitter and receiver are positioned face-to-face. This approach suffers from limitations in installation space and low wireless transmission efficiency in certain application scenarios.

[0004] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a side-coupled ultrasonic wireless power transmission device and ultrasonic scalpel handle, which has a compact structure and high-efficiency energy transmission.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] In a first aspect, this utility model discloses a side-coupled ultrasonic wireless power transmission device, comprising an ultrasonic transmitter and an ultrasonic receiver. The ultrasonic transmitter includes a primary side support, a primary side magnetic core, and a primary side coil. The ultrasonic receiver includes a secondary side support, a secondary side magnetic core, and a secondary side coil. The primary side coil, the primary side magnetic core, the secondary side coil, and the secondary side magnetic core are all complete annular structures. The primary side coil is used to connect to an ultrasonic controller, and the secondary side coil is used to connect to a load or an ultrasonic transducer. The primary side support has an inner cavity, and the primary side coil and the primary side magnetic core are fixedly disposed within the inner cavity of the primary side support. The secondary side coil and the secondary side magnetic core are fixedly disposed on the outer wall of the secondary side support. The primary side magnetic core is coaxially sleeved on the outer ring of the secondary side magnetic core, and an air gap is provided between the primary side magnetic core and the secondary side magnetic core to form a fully coupled magnetic circuit.

[0008] Preferably, the ultrasonic transmitter further includes a primary edge top cover, the opening of the inner cavity of the primary edge support is provided with an internal thread, the outer wall of the primary edge top cover is provided with an external thread, the primary edge top cover is fitted to the opening of the inner cavity of the primary edge support, the primary edge coil is installed on the inner side of the primary edge magnetic core, and one end of the primary edge top cover abuts against the primary edge magnetic core to fix the primary edge coil and the primary edge magnetic core in the inner cavity of the primary edge support.

[0009] Preferably, the ultrasonic receiver further includes a secondary side cover, which is an annular structure with an internal thread on its inner wall and an external thread on its outer wall. The secondary side cover is fitted onto the outer wall of the secondary side bracket, the secondary side coil is mounted on the outside of the secondary side magnetic core, and one end of the secondary side cover abuts against the secondary side magnetic core to fix the secondary side coil and the secondary side magnetic core onto the outer wall of the secondary side bracket.

[0010] Preferably, the primary coil is mounted on the inner side of the primary magnetic core, and the primary coil and the primary magnetic core are respectively encapsulated in the inner cavity of the primary support with epoxy resin.

[0011] Preferably, the secondary coil is mounted on the outside of the secondary magnetic core, and the secondary coil and the secondary magnetic core are respectively encapsulated on the outer wall of the secondary bracket with epoxy resin.

[0012] Preferably, the outer side wall and / or end of the primary magnetic core are inclined.

[0013] Preferably, the outer surfaces of the assembled primary coil and the primary magnetic core, as well as the assembled secondary coil and the secondary magnetic core, are each covered with a protective film.

[0014] Preferably, the protective film is formed by winding aramid fibers or glass fibers with a diameter of 0.005 mm to 0.02 mm.

[0015] Preferably, the thickness of the protective film is ≥0.1mm.

[0016] Secondly, this utility model discloses an ultrasonic scalpel handle, including a scalpel handle base, an ultrasonic transducer, and the ultrasonic wireless power transmission device described in the first aspect, wherein the scalpel handle base has a cavity, the rear end of the ultrasonic transducer is fixed in the cavity, the secondary side bracket is fixedly connected to the outer wall of the scalpel handle base, and the secondary side coil is electrically connected to the ultrasonic transducer.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: The side-coupled ultrasonic wireless power transmission device and ultrasonic scalpel handle disclosed in this utility model significantly reduce the energy loss of wireless transmission and improve the conversion efficiency through the coaxial coupling of the complete circular primary coil, primary magnetic core, secondary coil and secondary magnetic core, thereby realizing flexible and efficient ultrasonic wireless power transmission. The structure is compact and the energy transmission is highly efficient, which can effectively solve the problems of low wireless transmission efficiency and installation limitations in specific installation scenarios. Attached Figure Description

[0018] Figure 1 This is a top view of the side-coupled ultrasonic wireless power transmission device disclosed in Embodiment 1 of this utility model;

[0019] Figure 2 yes Figure 1 A cross-sectional schematic diagram of AA in the diagram;

[0020] Figure 3 yes Figure 2 A schematic diagram of the ultrasonic transmitter in the diagram;

[0021] Figure 4 yes Figure 2 A schematic diagram of the structure of the ultrasound receiver in the image;

[0022] Figure 5 This is a side view of the ultrasonic transmitter in the side-coupled ultrasonic wireless power transmission device disclosed in Embodiment 2 of this utility model;

[0023] Figure 6 yes Figure 5 Top view of the ultrasonic transmitter in the image;

[0024] Figure 7 yes Figure 6 A cross-sectional view of BB in the diagram;

[0025] Figure 8 A schematic diagram of the structure of the ultrasonic scalpel handle disclosed in Embodiment 2 of this utility model.

[0026] Explanation of icon numbers:

[0027] 10. Ultrasonic transmitter; 11. Primary side support; 12. Primary side magnetic core; 13. Primary side coil; 14. Primary side top cover; 20. Ultrasonic receiver; 21. Secondary side support; 22. Secondary side magnetic core; 23. Secondary side coil; 231. Wire; 24. Secondary side top cover; 30. Air gap; 40. Knife handle base; 41. Cavity; 42. Rubber plug; 50. Ultrasonic transducer; 60. Ultrasonic controller; 70. Load; 80. Protective film; 90. Epoxy resin; 100. Magnetic flux circuit. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. It should be emphasized that the following description is merely exemplary and not intended to limit the scope and application of this utility model.

[0029] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as "connected to" another component, it can be directly connected to or indirectly connected to that other component. Furthermore, a connection can be used for both fixing and circuit / signal connectivity.

[0030] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and 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 this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] like Figure 1 and Figure 2The image shows a side-coupled ultrasonic wireless power transmission device disclosed in Embodiment 1 of this utility model, comprising an ultrasonic transmitter 10 and an ultrasonic receiver 20. The ultrasonic transmitter 10 includes a primary side support 11, a primary side magnetic core 12, and a primary side coil 13. The ultrasonic receiver 20 includes a secondary side support 21, a secondary side magnetic core 22, and a secondary side coil 23. The primary side coil 13 and the primary side magnetic core 12, and the secondary side coil 23 and the secondary side magnetic core 22 are each complete annular structures. Figure 3 and Figure 4 The primary coil 13 is used to connect to the ultrasonic controller 60, and the secondary coil 23 is used to connect to the load 70 or the ultrasonic transducer. The primary support 11 has an inner cavity, and the primary coil 13 and primary magnetic core 12 are fixedly installed within this cavity. The secondary coil 23 and secondary magnetic core 22 are fixedly installed on the outer wall of the secondary support 21. The primary magnetic core 12 is coaxially fitted onto the outer ring of the secondary magnetic core 22, and an air gap 30 is provided between them to form a fully coupled magnetic circuit, i.e., a magnetic flux loop 100. This achieves the purpose of side-coupled ultrasonic wireless power transmission, and this coupling method has advantages such as high energy transmission efficiency, compact structure, stable and reliable transmission, and flexible application.

[0033] The ultrasonic transmitter 10 also includes a primary side cover 14. The opening of the inner cavity of the primary side support 11 is provided with an internal thread, and the outer wall of the primary side cover 14 is provided with an external thread. The primary side cover 14 is threadedly connected to the opening of the inner cavity of the primary side support 11. The primary side coil 13 is installed inside the primary side magnetic core 12. The upper end of the primary side cover 14 abuts against the primary side magnetic core 12 to fix the primary side coil 13 and the primary side magnetic core 12 within the inner cavity of the primary side support 11. After fixing the primary side coil 13 and the primary side magnetic core 12 within the inner cavity of the primary side support 11 using the primary side cover 14, they can be further encapsulated with epoxy resin. In some embodiments, the primary side cover 14 may be omitted, and the primary side coil 13 and the primary side magnetic core 12 may be directly encapsulated within the inner cavity of the primary side support 11 using epoxy resin. In practical applications, the diameter and shape of the primary side magnetic core 12 can be adjusted according to actual needs.

[0034] The ultrasonic receiver 20 also includes a secondary side cover 24, which is an annular structure with internal threads on its inner wall and external threads on the outer wall of the secondary side bracket 21. The secondary side cover 24 is threadedly connected to the outer wall of the secondary side bracket 21. The secondary side coil 23 is mounted on the outside of the secondary side magnetic core 22. The upper end of the secondary side cover 24 abuts against the secondary side magnetic core 22 to fix the secondary side coil 23 and the secondary side magnetic core 22 to the outer wall of the secondary side bracket 21. After fixing the secondary side coil 23 and the secondary side magnetic core 22 to the outer wall of the secondary side bracket 21 with the secondary side cover 24, they can be further encapsulated with epoxy resin. In some embodiments, the secondary side cover 24 may be omitted, and the secondary side coil 23 and the secondary side magnetic core 22 may be directly encapsulated on the outer wall of the secondary side bracket 21 with epoxy resin.

[0035] Among them, the primary magnetic core 12 and the secondary magnetic core 22 are made of high magnetic permeability materials, which effectively improves the transmission efficiency of electrical energy; the primary support 11 and the secondary support 21 are made of non-magnetic or low magnetic permeability materials. The appropriate materials can effectively reduce the loss of wireless transmission energy and improve the transmission efficiency of ultrasonic energy.

[0036] Embodiment 1 of this utility model provides a side-coupled ultrasonic wireless power transmission device, which can effectively solve problems such as low wireless transmission efficiency and installation limitations in specific installation scenarios; moreover, it can significantly reduce energy loss in wireless transmission and improve conversion efficiency; on the other hand, by adopting a fully coupled transmission method, the anti-interference capability is greatly improved, thereby improving the stability and reliability of the transmission process.

[0037] like Figures 5 to 7 The diagram shows the structure of the ultrasonic transmitter in the side-coupled ultrasonic wireless power transmission device disclosed in Embodiment 2 of this utility model. In this embodiment, the outer wall, upper end, and lower end of the primary magnetic core 12 are inclined. In Embodiment 1, the outer wall of the primary magnetic core 12 is parallel to the axis of the primary magnetic core, while in this embodiment, the outer wall of the primary magnetic core 12 forms an acute angle with the axis of the primary magnetic core. In Embodiment 1, the upper end and lower end of the primary magnetic core 12 are perpendicular to the axis of the primary magnetic core, while in this embodiment, the upper end and lower end of the primary magnetic core 12 form non-right angles with the axis of the primary magnetic core. Correspondingly, the position where the primary support 11 mates with the primary magnetic core 12 is also inclined, and the position where the primary top cover 14 mates with the primary magnetic core 12 is also inclined. Other structures in this embodiment are the same as in Embodiment 1 and will not be described again here. In this embodiment, the primary magnetic core 12 is set at an angle. On the one hand, the larger cross-section after tilting is more conducive to the energy transmission of the magnetic core. On the other hand, the tilt of the structure will also provide appropriate clearance and reduce interference during processing.

[0038] like Figure 8 The diagram shown is a structural schematic of the ultrasonic scalpel handle disclosed in Embodiment 3 of this utility model. It includes a handle base 40, an ultrasonic transducer 50, and an ultrasonic wireless power transmission device. A cavity 41 is provided on the handle base 40, and the rear end of the ultrasonic transducer 50 is fixed within the cavity 41. The ultrasonic wireless power transmission device is mounted on the handle base 40 and includes an ultrasonic transmitter 10 and an ultrasonic receiver 20. The ultrasonic transmitter 10 includes a primary side support 11, a primary side magnetic core 12, and a primary side coil 13. The ultrasonic receiver 20 includes a secondary side support, a secondary side magnetic core 22, and a secondary side coil 23. The primary side magnetic core 12 and the primary side coil 13 are fixed to the primary side support 11 with epoxy resin 90, and the primary side support 11 is the main axis primary side. The secondary side magnetic core 22 and the secondary side coil 23 are directly fixed to the handle base 40 with epoxy resin 90. In this embodiment, the handle base 40 serves as the secondary side support for the ultrasonic receiver 20. The wire 231 extending from the secondary coil 23 is connected to the ultrasonic transducer 50 via a rubber plug 42, ensuring effective power transmission and enabling the tool holder base 40 to operate normally. The rubber plug 42 itself is flexible and is press-fitted to the holes in the tool holder base 40 to prevent slippage. Simultaneously, in this embodiment, all magnetic cores and coils are uniformly coated with a protective film 80 made of aramid fiber or glass fiber. This protective film 80 is uniformly wound around the surface of the magnetic core and coil using 0.01mm diameter fibers, ensuring a thickness ≥0.1mm for protection. This protective film 80 is applied after the magnetic core and coil are assembled. Specifically, the outer surfaces of the assembled primary coil 13 and primary magnetic core 12, as well as the assembled secondary coil 23 and secondary magnetic core 22, are each wrapped with a protective film 80. The protective film 80 is made of aramid fiber or glass fiber, and further, it is formed by winding aramid fiber filaments or glass fiber filaments with a wire diameter of 0.005 mm to 0.02 mm. The thickness of the protective film 80 is ≥0.1 mm.

[0039] In practical use, ultrasonic scalpel handles need to rotate at high speeds. Compared to the vertically coupled method, the ultrasonic wireless power transmission device with full side coupling in this invention can effectively reduce the diameter of the handle, making it more suitable for high-speed rotation. In addition, compared to the side semi-coupled transmission method, the transmission efficiency is higher.

[0040] The background section of this utility model may include background information about the problems or circumstances surrounding the present utility model, rather than a description of prior art by others. Therefore, the content included in the background section is not an admission of prior art by the applicant.

[0041] The above description, in conjunction with specific / preferred embodiments, provides a further detailed explanation of the present invention and should not be construed as limiting the specific implementation of the present invention to these descriptions. For those skilled in the art, various substitutions or modifications can be made to these described embodiments without departing from the concept of the present invention, and all such substitutions or modifications should be considered within the protection scope of the present invention. In the description of this specification, the reference to terms such as "an embodiment," "some embodiments," "preferred embodiment," "example," "specific example," or "some examples," etc., indicates that the specific features, structures, materials, or characteristics described in connection with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification and the features of different embodiments or examples. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations may be made herein without departing from the scope defined by the appended claims.

Claims

1. A side-coupled ultrasonic wireless power transmission device, characterized in that, The system includes an ultrasonic transmitter and an ultrasonic receiver. The ultrasonic transmitter includes a primary support, a primary magnetic core, and a primary coil. The ultrasonic receiver includes a secondary support, a secondary magnetic core, and a secondary coil. The primary coil, the primary magnetic core, the secondary coil, and the secondary magnetic core are all complete circular ring structures. The primary coil is used to connect to the ultrasonic controller, and the secondary coil is used to connect to the load or the ultrasonic transducer. The primary support has an inner cavity, and the primary coil and the primary magnetic core are fixedly disposed in the inner cavity of the primary support. The secondary coil and the secondary magnetic core are fixedly disposed on the outer wall of the secondary support. The primary magnetic core is coaxially sleeved on the outer ring of the secondary magnetic core, and an air gap is provided between the primary magnetic core and the secondary magnetic core so that the primary magnetic core and the secondary magnetic core form a fully coupled magnetic circuit.

2. The ultrasonic wireless power transmission device according to claim 1, characterized in that, The ultrasonic transmitter also includes a primary edge top cover. The opening of the inner cavity of the primary edge support is provided with an internal thread, and the outer wall of the primary edge top cover is provided with an external thread. The primary edge top cover is fitted to the opening of the inner cavity of the primary edge support. The primary edge coil is installed on the inner side of the primary edge magnetic core. One end of the primary edge top cover abuts against the primary edge magnetic core to fix the primary edge coil and the primary edge magnetic core in the inner cavity of the primary edge support.

3. The ultrasonic wireless power transmission device according to claim 1, characterized in that, The ultrasonic receiver also includes a secondary side cover, which is a circular ring structure. The inner wall of the secondary side cover is provided with an internal thread, and the outer wall of the secondary side bracket is provided with an external thread. The secondary side cover is fitted and connected to the outer wall of the secondary side bracket. The secondary side coil is installed on the outside of the secondary side magnetic core. One end of the secondary side cover abuts against the secondary side magnetic core to fix the secondary side coil and the secondary side magnetic core to the outer wall of the secondary side bracket.

4. The ultrasonic wireless power transmission device according to claim 1, characterized in that, The primary coil is mounted on the inner side of the primary magnetic core, and the primary coil and the primary magnetic core are respectively encapsulated in the inner cavity of the primary support with epoxy resin.

5. The ultrasonic wireless power transmission device according to claim 1, characterized in that, The secondary coil is mounted on the outside of the secondary magnetic core, and the secondary coil and the secondary magnetic core are respectively encapsulated on the outer wall of the secondary bracket with epoxy resin.

6. The ultrasonic wireless power transmission device according to claim 1, characterized in that, The outer side wall and / or end of the primary magnetic core are inclined.

7. The ultrasonic wireless power transmission device according to claim 1, characterized in that, The outer surfaces of the assembled primary coil and primary magnetic core, as well as the assembled secondary coil and secondary magnetic core, are each wrapped with a protective film.

8. The ultrasonic wireless power transmission device according to claim 7, characterized in that, The protective film is formed by winding aramid fibers or glass fibers with a diameter of 0.005 mm to 0.02 mm.

9. The ultrasonic wireless power transmission device according to claim 7, characterized in that, The thickness of the protective film is ≥0.1mm.

10. An ultrasonic scalpel holder, characterized in that, The device includes a knife handle base, an ultrasonic transducer, and an ultrasonic wireless power transmission device according to any one of claims 1 to 9, wherein the knife handle base has a cavity, the rear end of the ultrasonic transducer is fixed in the cavity, the secondary side bracket is fixedly connected to the outer wall of the knife handle base, and the secondary side coil is electrically connected to the ultrasonic transducer.

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