WO2018214385A1

WO2018214385A1 - Soldering lug and ultrasonic dental descaler comprising same

Info

Publication number: WO2018214385A1
Application number: PCT/CN2017/105787
Authority: WO
Inventors: 李云; 秦明群; 林剑华; 梁丽华
Original assignee: 桂林市啄木鸟医疗器械有限公司
Priority date: 2017-05-20
Filing date: 2017-10-12
Publication date: 2018-11-29
Also published as: JP6788749B2; JP2019536595A; CN107174364A

Abstract

Provided is a soldering lug (1) used in an ultrasonic dental descaler. The soldering lug (1) comprises a first connection plate (110), a second connection plate (120), a third connection plate (130) and a fourth connection plate (140). Both the first connection plate (110) and the second connection plate (120) are connected to the third connection plate (130). The first connection plate (110) and the second connection plate (120) are located at the same side of the third connection plate (130). An end of the fourth connection plate (140) is connected to the third connection plate (130). The soldering lug (1) is made of cupronickel material. Provided is an ultrasonic dental descaler, comprising a piezoelectric ceramic ultrasonic transducer (2) and two soldering lugs (1). Both the two soldering lugs (1) are sheathed at a chip drive electrode on the piezoelectric ceramic ultrasonic transducer (2), and are used for extracting the chip drive electrode. Each of the soldering lugs (1) is connected to a connection wire (3), and the connection wire (3) is connected to the soldering lugs (1) by way of resistance soldering. The beneficial effects are: being easy to realize automatic soldering, being capable of making the diameter of a package structure of the piezoelectric ceramic ultrasonic transducer (2) small, and being capable of solving the problem of sparking failure that easily occurs in an injection layer.

Description

Welding piece and ultrasonic scaler containing same

Technical field

The present invention relates to the field of dental medical devices, and more particularly to a soldering piece and an ultrasonic scaler including the same.

Background technique

The piezoelectric ceramic wafer in the piezoelectric ceramic sheet set in the ultrasonic transducer used in the existing ultrasonic scaler usually has four pieces, and the end faces of the same polarity of the adjacent two piezoelectric ceramic wafers are placed together when placed. . In the case of the assembly of the transducer, in order to achieve the electrical connection of the piezoceramic sheet set, it is generally necessary to use an electrode sheet or a soldering sheet, wherein the patent application No. 2013203070825 discloses a piezoelectric ceramic sheet group. The member constituting the positive electrode of the piezoelectric ceramic sheet group and the member constituting the negative electrode of the piezoelectric ceramic chip group are electrically connected, and the members constituting the positive electrode of the piezoelectric ceramic chip group or the components constituting the negative electrode of the piezoelectric ceramic chip group are The electrical connection of the piezoelectric ceramic chip group can be well realized, but the components constituting the positive electrode of the piezoelectric ceramic chip group or the components constituting the negative electrode of the piezoelectric ceramic chip group are connected to the power supply line (connecting wire) due to the influence of the structure. It is necessary to solder the power cord (connecting wire) to it by hand soldering, and the manual soldering method not only ensures the reliability of the solder joint (the skill of the welding personnel is high), but also It is difficult to achieve automated welding production.

Summary of the invention

The technical problem to be solved by the present invention is to provide a soldering piece and an ultrasonic scaler including the same to overcome the deficiencies in the prior art described above.

The technical solution of the present invention to solve the above technical problems is as follows: a welding for use in an ultrasonic scaler The soldering piece includes a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate. One end of the third connecting plate is connected to the first connecting plate, and the other end of the third connecting plate is connected to the second connecting end. The plates are connected, the first connecting plate and the second connecting plate are located on the same side of the third connecting plate, and one end of the fourth connecting plate is connected with the third connecting plate; the soldering piece is made of white copper material.

The invention has the beneficial effects that the fourth connecting plate for soldering with the connecting wire is fixed on the third connecting plate, so that when the connecting wire and the soldering piece are welded, it is easy to use the electric resistance welding to realize the welding, thereby For the implementation of automated welding, the automatic welding scrap rate is extremely low. In addition, the resistance welding process is not only simpler than manual soldering, the welding quality is reliable, the solder joint is extremely small, and there is no rosin residue, which improves the production efficiency.

Based on the above technical solutions, the present invention can also be improved as follows.

Further, the first connecting plate has an annular structure, the outer diameter of the annular structure is 10 mm, and the inner diameter of the annular structure is 5 mm.

Further, the solder pieces are bilaterally symmetrical.

Further, the thickness of the first connecting plate is 0.1 mm.

Further, the distance between the surface of the third connecting plate and the center of the first connecting plate is 5.5 mm.

Further, the third connecting plate has a thickness of 0.1 mm, the third connecting plate has a width of 1.6 mm, and the third connecting plate has a length of 4.35 mm.

Further, the thickness of the fourth connecting plate is 0.1 mm, the length of the fourth connecting plate is 3.75 mm, and the height of the fourth connecting plate is 2 mm.

Further, one end of the fourth connecting plate is connected to the rear side of the third connecting plate, and the other end of the fourth connecting plate extends away from the first connecting plate or the second connecting plate.

Further, the soldering piece is processed by an integral molding process.

The technical solution of the present invention to solve the above technical problems is as follows: an ultrasonic scaler comprising a piezoelectric ceramic ultrasonic transducer and two soldering pieces; the wafer driving of the two soldering pieces on the piezoelectric ceramic ultrasonic transducer At the electrode, and used to pull out the wafer drive electrode, the outer side of the fourth connecting plate in each soldering piece A connecting wire is connected, and the connecting wire is connected with the fourth connecting plate by electric resistance welding.

A further advantageous effect of the above is that not only the diameter of the piezoelectric ceramic ultrasonic transducer package structure can be made small, but also the problem that the injection molding layer is prone to sparking failure in the prior art can be solved.

DRAWINGS

Figure 1 is a front elevational view of a welding pad for use in an ultrasonic scaler of the present invention;

Figure 2 is a right side view of Figure 1;

Figure 3 is an enlarged view of the portion D in Figure 1;

Figure 4 is an enlarged view of E in Figure 2;

Figure 5 is a perspective view 1 of the welding piece used in the ultrasonic scaler of the present invention;

Figure 6 is a perspective view 2 of the welding piece used in the ultrasonic scaler of the present invention;

Figure 7 is a first effect diagram of the welding piece after welding;

Figure 8 is a second effect diagram of the welding piece after welding;

Figure 9 is a first effect diagram after the bending of the soldering piece;

Fig. 10 is a second view of the effect of the welding piece after bending.

In the drawings, the list of parts represented by each label is as follows:

1. Solder piece, 110, first connecting plate, 120, second connecting plate, 130, third connecting plate, 140, fourth connecting plate, 2. Piezoelectric ceramic ultrasonic transducer, 3. Connecting wire.

detailed description

The principles and features of the present invention are described in the following with reference to the accompanying drawings.

As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , a soldering piece for use in an ultrasonic scaler, the soldering piece 1 includes a first connecting plate 110 , a second connecting plate 120 , The third connecting plate 130 and the fourth connecting plate 140. The soldering piece 1 is processed by an integral molding process.

The first connecting plate 110 is connected to the left end of the third connecting plate 130, and the second connecting plate 120 is connected to the right end of the third connecting plate 130. When connecting, the first connecting plate 110 and the second connecting plate 120 are located at the On the same side of the three connecting plates 130, the first connecting plate 110 and the second connecting plate 120 are parallel, the third connecting plate 130 functions as an electrical connection, and one end of the fourth connecting plate 140 is opposite to the rear side of the third connecting plate 130. The other end of the fourth connecting plate 140 extends in a direction away from the first connecting plate 110 or the second connecting plate 120. The first connecting plate 110, the second connecting plate 120, the third connecting plate 130, and the fourth connecting plate 140 are all made of a white copper material. In addition, the soldering piece 1 of the structure can realize the connection of two identical electrodes by one solder joint, and can reduce the volume of the handle in the scaler and improve the comfort.

The third connecting plate 130 has an inverted U-shaped structure. When the first connecting plate 110 is connected to the third connecting plate 130, it is one end of the connected U-shaped structure, and the second connecting plate 120 is at the third connecting plate. When 130 is connected, it is the other end of the connected U-shaped structure.

In this embodiment, the soldering piece 1 is bilaterally symmetrical, that is, the structure of the first connecting plate 110 and the structure of the second connecting plate 120 are the same, and the plane of symmetry of the third connecting plate 130 and the plane of symmetry of the fourth connecting plate 140 are common. surface.

The first connecting plate 110 has an annular structure, the outer diameter of the annular structure is 10 mm, and the inner diameter of the annular structure is 5 mm. The second connecting plate 120 also has an annular structure, the outer diameter of the annular structure is 10 mm, and the inner diameter of the annular structure is 5 mm. When the third connecting plate 130 is connected to the first connecting plate 110, it is connected to the outer circumferential surface of the first connecting plate 110. When the third connecting plate 130 is connected to the second connecting plate 120, it is outside the second connecting plate 120. The circumferential surfaces are connected.

Further, in the present embodiment, the thickness of the first connecting plate 110 is 0.1 mm, and the thickness of the second connecting plate 120 is 0.1 mm. The distance between the upper surface of the third connecting plate 130 and the center of the first connecting plate 110 is 5.5 mm. The third connecting plate 130 has a thickness of 0.1 mm, the third connecting plate 130 has a width of 1.6 mm, and the third connecting plate 130 has a length of 4.35 mm. The fourth connecting plate 140 has a thickness of 0.1 mm, the fourth connecting plate 140 has a length of 3.75 mm, and the fourth connecting plate 140 has a height of 2 mm. First connecting plate 110 The distance of the inner side from the inner side of the second connecting plate 120 is 4.15 mm. A circular chamfer having a radius of 0.2 mm is provided at the junction of the fourth connecting plate 140 and the third connecting plate 130. The third web 130 is provided with a round chamfer having a radius of 0.3 at each bend (the so-called bend refers to each turn of the inverted U-shaped structure).

As shown in FIG. 7, FIG. 8, FIG. 9, FIG. 10, an ultrasonic scaler includes a piezoelectric ceramic ultrasonic transducer 2 and two soldering pieces 1. Two soldering pieces 1 are sleeved on the wafer driving electrodes on the piezoelectric ceramic ultrasonic transducer 2, and are used to lead out the wafer driving electrodes, and the outer side of the fourth connecting plate 140 in each soldering piece 1 is connected with a connection. The wire 3 (the connecting wire 3 is used for connecting the power source), that is, one soldering piece 1 is connected to the positive electrode of the power source, the other soldering piece 1 is connected to the negative electrode of the power source, and the connecting wire 3 and the fourth connecting plate 140 are connected by electric resistance welding. After the connecting line 3 and the outer side of the fourth connecting plate 140 in the soldering piece 1 are welded, the fourth connecting plate 140 is folded by the folding device, so that the inner side of the fourth connecting plate 140 faces the third connecting plate. The upper surface of 130 is close.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A soldering piece for use in an ultrasonic scaler, characterized in that the soldering piece (1) comprises a first connecting plate (110), a second connecting plate (120), a third connecting plate (130), and a fourth connection a plate (140), one end of the third connecting plate (130) is connected to the first connecting plate (110), and the other end of the third connecting plate (130) is connected to the second connecting plate (120). The first connecting plate (110) and the second connecting plate (120) are located on the same side of the third connecting plate (130), and one end of the fourth connecting plate (140) and the third connecting plate (130) The soldering piece (1) is made of a white copper material.
A soldering sheet for use in an ultrasonic scaler according to claim 1, wherein said first connecting plate (110) has an annular structure, and said annular structure has an outer diameter of 10 mm. The inner diameter of the annular structure is 5 mm.
A soldering sheet for use in an ultrasonic scaler according to claim 2, characterized in that the soldering piece (1) is bilaterally symmetrical.
A soldering sheet for use in an ultrasonic scaler according to claim 3, wherein said first web (110) has a thickness of 0.1 mm.
A soldering sheet for use in an ultrasonic scaler according to claim 4, wherein the upper surface of the third connecting plate (130) is at a distance of 5.5 mm from the center of the first connecting plate (110). .
A soldering sheet for use in an ultrasonic scaler according to claim 1, wherein said third connecting plate (130) has a thickness of 0.1 mm and a width of said third connecting plate (130) The length of the third connecting plate (130) is 4.35 mm.
A soldering sheet for use in an ultrasonic scaler according to claim 1, wherein said fourth connecting plate (140) has a thickness of 0.1 mm and a length of said fourth connecting plate (140) The height of the fourth connecting plate (140) is 3.50 mm, which is 2 mm.
A soldering sheet for use in an ultrasonic scaler according to claim 1, wherein One end of the fourth connecting plate (140) is connected to the rear side of the third connecting plate (130), and the other end of the fourth connecting plate (140) faces away from the first connecting plate (110) or the first The direction of the two connecting plates (120) extends.
A soldering sheet for use in an ultrasonic scaler according to any one of claims 1 to 8, characterized in that the soldering piece (1) is processed by an integral molding process.
An ultrasonic scaler comprising a piezoelectric ceramic ultrasonic transducer (2) and two solder tabs (1) according to any one of claims 1 to 9; two solder tabs (1) Each is placed on the wafer driving electrode on the piezoelectric ceramic ultrasonic transducer (2), and is used to lead out the wafer driving electrode, and the outer side of the fourth connecting plate (140) in each soldering piece (1) is connected to one A connecting wire (3) is connected between the connecting wire (3) and the fourth connecting plate (140) by electric resistance welding.