JPH0585474U - Ultrasonic transducer - Google Patents

Abstract

(57) [Summary] [Purpose] Even when stacked, take out the objects directly below so that they do not lift at the same time. [Structure] Three protrusions 15b are integrally formed on the surface of an insulator 15 of the ultrasonic vibrator 12. Even in the stacked state, a gap A is formed between the upper and lower portions by the protrusion 15b of the insulator 15, so that a close contact does not occur. Therefore, when the stacked items are taken out from above. , The one below it will not be lifted by suction. As a result, the ultrasonic transducers 11 can be reliably taken out one by one, so that workability is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an ultrasonic vibrator in which electrode plates are attached to both surfaces of a flat plate-shaped ultrasonic vibrator and an insulating film is provided on at least one of the surfaces.

[0002]

[Prior Art]

 For example, an ultrasonic transducer incorporated in a mirror of an automobile removes water droplets adhering to the mirror surface by applying ultrasonic vibration to the mirror body (not shown) to atomize or drop the water droplets. There is an appearance as shown in FIG.

That is, the ultrasonic transducer 1 is provided with silver electrodes on substantially the entire upper and lower surfaces of the ultrasonic vibrating body 2 made of a disk-shaped piezoelectric material, and a copper foil and a polyimide foil are provided on the upper surface thereof. The insulator 3 to which the film is attached is attached, and the plate 4 as an electrode is attached to the lower surface.

A window portion 3a for connecting a lead wire is formed in the insulator 3, and a connection terminal portion 4a is formed in the plate 4. When the ultrasonic transducers 1 formed in this way are assembled into the apparatus, they are housed in the cassette 5 in a stacked state as shown in FIG. It is designed to be taken out one by one.

[0005]

[Problems to be solved by the device]

 However, in the ultrasonic transducer 1 having the above-described conventional configuration, when the ultrasonic transducers 1 are housed in the cassette 5 in a stacked state, the plate 4 of the upper one and the plate 4 of the lower one are placed between the adjacent ultrasonic transducers 1. Since the surface of the insulator 3 is likely to come into close contact with the surface of the insulator 3, when the uppermost ultrasonic transducer 1a is taken out from the cassette 5 by the hand 6, another ultrasonic transducer 1b located immediately below is sucked. It may be lifted.

When such an adsorption phenomenon occurs, the machine is stopped, or the ultrasonic vibrator 1b lifted in the adsorbed state falls on the way, so that workability in the assembly process is improved. There is a problem that decreases.

The present invention has been made in view of the above circumstances, and an object thereof is to reliably take out one by one when taking out from the top even when they are stored in a stacked state, An object is to provide an ultrasonic transducer that can improve workability.

[0008]

[Means for Solving the Problems]

 The present invention is intended for an ultrasonic vibrator in which electrode plates are attached to both surfaces of a flat plate-shaped ultrasonic vibrator and an insulating film is provided on at least one surface of the ultrasonic vibrator. The feature is that the film is formed by integrally providing one or more protrusions.

[0009]

[Action]

 According to the ultrasonic transducer of the present invention, since one or more protrusions are formed on the insulating film, in the stacked state, between the vertically adjacent components, A gap is formed by the protrusions and the state of close contact is lost, and when lifting one by one from the top, it is not necessary to adsorb adjacent ones at the bottom and lift simultaneously, so it is possible to reliably take out one by one. ..

[0010]

【Example】

 An embodiment of the present invention will be described below with reference to FIGS. 1 and 2.

In FIG. 1, which shows the overall appearance of the ultrasonic transducer 11, a disc-shaped ultrasonic vibrator 12 is made of a material having piezoelectric characteristics such as lead zirconate titanate (PZT). A pair of silver electrodes are formed on the front surface and the back surface, respectively, over substantially the entire surface.

The plate 13 as an electrode plate having the connection terminal portion 13a is attached in a state of being in electrical contact with the silver electrode on the back surface side of the ultrasonic vibrator 12. A thin copper plate 14 as an electrode plate is attached to the surface side of the ultrasonic vibrator 12 so as to cover the upper surface of the silver electrode in an electrically contacting state, and further as a film having an insulating property thereon. The insulator 15 is bonded so as to cover the thin plate 14.

In this case, the thin plate 14 is provided so as to prevent discharge or the like due to potential distribution occurring in the plane of the silver electrode when a voltage is applied. The insulator 15 is for ensuring insulation from the outside, and is formed in a state where the electrode extraction portion 15a portion is removed, and the surface of the thin plate 14 is exposed in that portion. Further, on the surface of the insulator 15, there are formed projections 15b at three positions which are isotropically arranged at a plurality of 120 ° intervals.

According to such a configuration, as shown in FIG. 2, when the ultrasonic transducers 11a and 11b are stacked and housed in the cassette 16, the ultrasonic transducers 11a located above the ultrasonic transducers 11a and 11b are stacked. A space A is formed between the plate 13 and the insulator 13 of the ultrasonic transducer 11b located below the plate 13 by being separated by three projections 13b formed on the insulator 13.

Therefore, the ultrasonic transducers 11a and 11b do not come into close contact with each other, and even when the ultrasonic transducers 11a and 11b are housed in the cassette in a stacked state, when being lifted by the hand 17 from above, The adjacent ultrasonic vibrating body 11b immediately below is not lifted up together with the suction state, and it becomes possible to take out one by one with certainty, and the workability during handling such as assembly is improved.

In the above-described embodiment, the three protrusions 15b are provided, but the present invention is not limited to this, and one or more protrusions 15b may be provided.

[0017]

[Effect of the device]

 As described above, according to the ultrasonic transducer of the present invention, the insulating film has the structure in which one or more protrusions are integrally provided. Since a gap is formed between them, the adjacent ones do not come into close contact with each other.Therefore, when taking out the uppermost one in a stacked state, the lower one is accompanied by the adsorption state. It is not taken out and can be taken out one by one surely, which is an excellent effect that workability is improved.

[Brief description of drawings]

FIG. 1 is an external perspective view of the overall configuration showing an embodiment of the present invention.

FIG. 2 is a vertical sectional side view showing a stacked state.

FIG. 3 is a view corresponding to FIG. 1 showing a conventional example.

FIG. 4 is a view corresponding to FIG.

[Explanation of symbols]

11, 11a and 11b are ultrasonic vibrators, 12 is an ultrasonic vibrator, 13 is a plate (electrode plate), 14 is a thin plate (electrode plate), 15 is an insulator (insulating film), 15
Reference numeral b is a protrusion, 16 is a cassette, and 17 is a hand.

Claims (1)

[Scope of utility model registration request] 1. A flat ultrasonic vibration body having electrode plates attached to both surfaces thereof, and an insulating film provided on at least one surface thereof, wherein the insulating film has a thickness of 1 mm.
An ultrasonic transducer characterized by integrally providing at least one protrusion.