High-performance transducer

Abstract

The utility model discloses a high-performance energy converter which comprises a method body, a method cover is installed on the top of the method body, an amplitude-change pole is installed at the bottom of the method body, a piezoelectric piece is installed above the method cover, a top cover is installed above the piezoelectric piece, and the top of the top cover is connected with an electric connection end. Welding spots are arranged on the surfaces of the two sides of the piezoelectric piece, an electric wire is welded to one side of the surface of each welding spot, and the surfaces of the welding spots are connected with soldering tin marks; the piezoelectric piece is designed into a structure with a square outer part and a round inner part, on one hand, the piezoelectric piece with the square structure is more convenient to arrange and install in space due to regular shape, and is more convenient than a round piezoelectric piece, and on the other hand, the internal round hole structure can be better installed on a method body, the square piezoelectric piece is stacked together in multiple layers, and the multilayer structure design is adopted, so that the piezoelectric piece is more compact in structure. The energy conversion efficiency of the piezoelectric ceramics is further improved, the piezoelectric effect of each layer can be fully utilized by superposing a plurality of piezoelectric ceramic layers, and the overall output electric energy is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to medical instrument technical field, concretely is a kind of high-performance transducer. BACKGROUND

[0002] Ultrasonic knife is a new energy type cleaning instrument of surgery, compared with traditional electric knife, ultrasonic knife has very obvious advantage: accurate cutting, hemostasis and minimum thermal damage, reduce operation time and can be used for important organ, very little smoke and charring, ensure that the vision is clear in operation, ultrasonic knife is important instrument in pet operation treatment process.

[0003] The existing transducer occupies the use space of the transducer in the use process, the wire connection on both sides of the piezoelectric element, resulting in the increase of the volume of the transducer, and then the use convenience of the instrument matched with the transducer is increased, and when energy conversion is carried out, the resonance frequency of the piezoelectric element is not good, resulting in large loss of the transducer.

[0004] Therefore, the skilled in the art provides a kind of high-performance transducer to solve the problems raised in the above background art. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a kind of high-performance transducer to solve the problems raised in the above background art that the resonance frequency of the existing transducer is not good, and the use convenience of the transducer is reduced.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of high-performance transducer, comprising: law body, the top of the law body is equipped with law cover, the bottom of the law body is equipped with amplitude rod, the top of the law cover is equipped with piezoelectric element, the top of the piezoelectric element is equipped with top cover, the top of the top cover is connected with electric connection end, the surface of both sides of the piezoelectric element is provided with welding spot, the surface side of the welding spot is welded with wire, the surface of the welding spot is connected with solder mark.

[0008] As a further scheme of the utility model: the piezoelectric element is vertically distributed with multiple layers along vertical horizontal line, and the piezoelectric element is connected between multiple layers by solder mark.

[0009] As a further scheme of the utility model: the external structure shape of the piezoelectric element is square, and pre-tightening bolt is connected between the piezoelectric element and the law cover, and the piezoelectric element is connected with the law cover by pre-tightening bolt.

[0010] As a further scheme of the utility model: cooling port is arranged on the surface of the left and right sides of the top cover, and the cooling port and the inside of the law body are communicated by channel.

[0011] As a further scheme of the utility model: the inside of the law cover is provided with a heat dissipation channel, and the heat dissipation channel is provided with a horn mouth at one end close to the center line of the law cover.

[0012] As a further scheme of the utility model: the surface of the law cover is provided with a heat dissipation hole, the heat dissipation hole and the heat dissipation channel are interconnected, and the heat dissipation channel is communicated with the cooling port.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1, piezoelectric piece adopts ceramic material, piezoelectric piece is designed into outer square inner circular hole structure, one aspect square piezoelectric piece is more convenient for layout and installation due to shape regular, compared with circular piezoelectric piece, better convenience, on the other hand, the internal circular hole structure can be better installed on the law body, and the square piezoelectric piece is stacked together, and the multilayer structure design further improves the energy conversion efficiency of piezoelectric ceramic, and the piezoelectric effect of each layer can be fully utilized by stacking multiple piezoelectric ceramic layers, and the overall output electric energy is improved.

[0015] 2, the both sides of piezoelectric piece are provided with welding points, the welding points of the first layer are connected with electric wires, the electric wires are connected through the welding points, the occupied space of the both sides of piezoelectric piece is reduced, the occupied volume of transducer is reduced, the use convenience of instrument is avoided, each layer of piezoelectric piece is provided with welding points, the welding points are connected with soldering material between the welding points, and then each layer of welding points is connected together in the shape of Z, the resonance frequency of multilayer piezoelectric piece is improved, the loss of transducer is reduced, and the heat dissipation pressure of transducer is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a structural schematic view of a high-performance transducer.

[0017] Fig. 2 It is a piezoelectric piece structural schematic view of a high-performance transducer.

[0018] Fig. 3 It is a structural schematic view of law body and law cover in a high-performance transducer.

[0019] Fig. 4 It is a sectional view structural schematic view of law body in a high-performance transducer.

[0020] In the drawing: 1, law body;2, law cover;3, amplitude bar;4, piezoelectric piece;5, top cover;6, cooling port;7, electric connection end;8, welding point;9, soldering mark;10, electric wire;11, pre-tightening bolt;12, heat dissipation channel;13, horn mouth;14, heat dissipation hole. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present utility model.

[0022] Please refer to Figs. 1-4 The utility model discloses a kind of high-performance transducers, comprising: law body 1, law cover 2 is installed on the top of law body 1, amplitude rod 3 is installed on the bottom of law body 1, piezoelectric piece 4 is installed above law cover 2, top cover 5 is installed above piezoelectric piece 4, electric connection end 7 is connected to the top of top cover 5, both sides surface of piezoelectric piece 4 is provided with solder joint 8, electric wire 10 is welded on the surface side of solder joint 8, solder joint 8 surface is connected with solder mark 9.

[0023] Piezoelectric piece 4 is vertically distributed with multiple layers along vertical horizontal line, multiple piezoelectric pieces 4 are connected by solder mark 9, the external structure shape of piezoelectric piece 4 is square, and pre-tightening bolt 11 is connected between piezoelectric piece 4 and law cover 2, piezoelectric piece 4 is connected with law cover 2 by pre-tightening bolt 11;

[0024] Specifically, piezoelectric piece 4 uses ceramic material with good conductivity, piezoelectric piece 4 adopts square structure, and square piezoelectric piece 4 is more easily stacked, which is beneficial to the design of multi-layer structure, and further improves the energy conversion efficiency of piezoelectric ceramic, and by stacking multiple piezoelectric ceramic layers, the piezoelectric effect of each layer can be fully utilized to improve the overall output power, and the solder joint 8 is connected together by solder paste, so that the multiple piezoelectric pieces 4 are connected together, so that the resonance frequency is better, and the loss of the transducer body is reduced.

[0025] Cooling port 6 is arranged on the left and right side surfaces of top cover 5, and the cooling port 6 and the inside of law body 1 are communicated through a channel, and the inside of law cover 2 is provided with a heat dissipation channel 12, one end of the heat dissipation channel 12 close to the center line of the law cover 2 is provided with a horn port 13, and a heat dissipation hole 14 is formed in the surface of the law cover 2, the heat dissipation hole 14 and the heat dissipation channel 12 are communicated, and the heat dissipation channel 12 is communicated with the cooling port 6;

[0026] Specifically, the channel in the cooling port 6 is connected to the inside of the entire transducer, which is convenient for cooling the inside of the transducer, and the heat dissipation hole 14 is arranged on the surface of the law cover 2, the heat dissipation hole 14 is communicated with the cooling port 6, and the inside of the transducer is penetrated, one end of the heat dissipation channel 12 is designed as a horn port 13, and the structure of one end narrow and one end wide of the horn port 13 is used to improve the flow rate of air in the heat dissipation channel 12 and improve the heat dissipation efficiency.

[0027] The working principle of the present utility model is:

[0028] In use of the utility model, electric connection is carried out by electric connection end 7, piezoelectric element 4 of square structure is designed by adopting multilayer structure stacking, the piezoelectric effect of each layer is fully utilized by superimposing multiple piezoelectric ceramic layers, the energy conversion efficiency of piezoelectric element 4 is improved, the output electric energy is improved, secondly, the electric energy is converted into mechanical energy by using inverse piezoelectric effect, the deformation generated by piezoelectric element 4, and its high resolution and response speed, and then precise operation is carried out, when piezoelectric element 4 is stressed and vibrates, the multilayer piezoelectric element 4 is connected by welding spot 8 and soldering paste, so that the resonance frequency between piezoelectric element 4 is better, so the smaller the vibration when stressed, the smaller the energy conversion loss, so as to improve the electric energy conversion efficiency, finally, cooling port 6 and heat dissipation hole 14 are communicated with each other, when air is located at one end of horn mouth 13, the structure of one end narrow and one end wide is utilized, the air flow rate is improved, so that the heat in the transducer can be radiated faster through cooling port 6 and the heat dissipation hole 14 on the surface of cover 2.

[0029] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art in the technical range disclosed by the utility model, according to the technical scheme and utility model concept of the utility model, equivalent replacement or change is carried out, should be covered in the protection scope of the utility model.

Claims

1. A high performance transducer characterized by, Include: The law body (1), the top of the law body (1) is installed with law cover (2), the bottom of the law body (1) is installed with amplitude rod (3), the top of the law cover (2) is installed with piezoelectric piece (4), the top of the piezoelectric piece (4) is installed with top cover (5), the top of the top cover (5) is connected with electric connection end (7), both sides surface of the piezoelectric piece (4) are provided with welding spot (8), the surface one side of the welding spot (8) is welded with electric wire (10), the surface of the welding spot (8) is connected with solder mark (9).

2. A high performance transducer according to claim 1, characterised in that, The piezoelectric piece (4) is vertically distributed with multiple layers along the vertical horizontal line, and the multiple piezoelectric pieces (4) are connected by solder mark (9).

3. A high performance transducer according to claim 1, wherein, The external structure shape of the piezoelectric piece (4) is square, and the piezoelectric piece (4) is connected with pre-tightening bolt (11) between the piezoelectric piece (4) and the law cover (2), and the piezoelectric piece (4) is connected with the law cover (2) through the pre-tightening bolt (11).

4. A high performance transducer according to claim 1, wherein, The left and right surface of the top cover (5) is provided with cooling port (6), and the cooling port (6) and the inside of the law body (1) are communicated through the channel.

5. A high performance transducer according to claim 1, wherein, The inside of the law cover (2) is provided with heat dissipation channel (12), and the heat dissipation channel (12) is provided with horn mouth (13) near the center line of the law cover (2).

6. A high performance transducer according to claim 1, wherein, The surface of the law cover (2) is provided with heat dissipation hole (14), the heat dissipation hole (14) and the heat dissipation channel (12) are communicated, and the heat dissipation channel (12) and the cooling port (6) are communicated.

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