JPH0343437Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a small fan used for cooling heat-generating parts used in electronic and electrical equipment, and in particular supports the end of a piezoelectric vibrator. The present invention relates to a piezoelectric fan that applies an AC voltage between both electrodes of a piezoelectric vibrator to vibrate the piezoelectric vibrator and blow air.

[Conventional technology]

A conventional piezoelectric fan of this type is constructed by fixing an end of a piezoelectric vibrator to a support and connecting lead wires to both electrodes of the piezoelectric vibrator.

[The problem that the idea aims to solve]

In the conventional piezoelectric fan mentioned above, the support part is attached to the installation location with bolts, so it is not easy to install the fan.Also, since the lead wire is connected to the electrode of the piezoelectric vibrator, the support part of the piezoelectric vibrator It is difficult to support and remove it, which not only can lead to a decrease in performance, but also makes it expensive.

The present invention was devised in view of these problems, and its purpose is to provide an inexpensive socket-type piezoelectric fan that is easy to install, support and remove the piezoelectric vibrator, and exhibits sufficient performance. That's true.

[Means to solve the problem]

In order to solve the above problems and achieve the above object, the piezoelectric fan of the present invention is fitted into a socket 3 with the end of the piezoelectric vibrator 1 sandwiched between conductive elastic contacts 2a and 2b as shown in the figure. , the protrusions 4a, 4b of the conductive elastic contacts 2a, 2b protrude from the side holes 5a, 5b of the socket 3, and the connector has a socket and a contact connected to the power supply on its inner wall. The configuration is such that it is fitted into the

[Effect]

With this configuration, the socket 3 is fitted into the insertion port 7 of the connector 6 provided at the installation location, and the protrusions 4 of the conductive elastic contacts 2a, 2b of the socket 3
By press-contacting the contacts 8a and 4b to the contacts 8a and 8b of the connector 6, the fan can be attached and power can be supplied to the piezoelectric vibrator 1, and the piezoelectric vibrator 1 can be supported and removed using the conductive elastic contacts 2a and 2b. This makes it easier to insert and pull out the material, and the performance can be fully demonstrated.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

The drawings are front views showing one embodiment of the piezoelectric fan of the present invention, FIG. 2 is a plan view thereof, FIG. 3 is a cross-sectional view taken along the line - in FIG.
FIG. 3 is a sectional view showing an example of the mounting state of the piezoelectric fan of the present invention taken along lines - and - in the figure;

In Figures 1 to 3, 1 is a ceramic type,
Membrane electrodes 10 are provided on both sides of the polymeric membrane piezoelectric material 9.
This is a piezoelectric vibrator which is provided with elements a and 10b. Specifically, a piezoelectric body with a vapor-deposited film of aluminum or the like formed on both sides, and a metal plate (shim) on one side of the piezoelectric body.
with a vapor-deposited film on the other side, or 2
It is possible to use a structure in which two piezoelectric bodies are attached to both sides of a metal plate (shim) and a vapor-deposited film is formed on the outer surface of the piezoelectric body. The end portion of the piezoelectric vibrator 1 is fitted into a socket 3 while being sandwiched between conductive elastic contacts 2a and 2b. The conductive elastic contacts 2a and 2b may be made of rubber, plastic, etc. mixed with metal powder, metal flakes, metal fibers, carbon fibers, carbon powder, etc., phosphor bronze, brass, etc. A metal spring material such as Stentes can be used.

Protrusions 4a, 4 of each conductive contact 2a, 2b
b protrudes from the side holes 5a, 5b of the socket 3. FIG. 3 shows an example in which the conductive elastic contacts 2a and 2b are made of conductive rubber, and FIG. 5 shows an example in which they are made of spring material.

An insulating connecting member 11 is provided at the tip of the piezoelectric vibrator 1.
The blade 12 is attached by. 6 is a connector installed at the installation location, 7 is its insertion port, 8a, 8b
is a contact, 13a, 13b is each contact 8a,
A lead wire connected to 8b is used to apply an alternating current voltage.

Reference numerals 14a and 14b are locking parts such as claws or protrusions provided at symmetrical positions on the upper part of the socket 3, and are provided so as to be freely retractable and retractable by the force of a spring. Reference numerals 15a and 15b are stopper portions provided on the inner surface of the insertion port of the connector 6, which lock the respective locking portions 14a and 14b to prevent the socket 3 from coming off. 16a and 16b are each locking part 1
This hole is used when releasing the lock between 4a and 14b.

When the socket 3 is inserted into the insertion port 7 of the connector 6 provided at the installation location, the conductive elastic contacts 2a, 2b of the socket 3 and the contacts 8a, 8b of the connector 6 are connected as shown in FIG. 4a. are in pressure contact, and the AC voltage is applied to lead wire 1.
3a, 13b to contacts 8a, 8b with protrusions 4a,
The air is applied between the electrodes 10a and 10b of the piezoelectric vibrator 1 through the contacts 2a and 2b which are pressed against each other, the piezoelectric vibrator 1 vibrates, and the blades 12 vibrate greatly to blow air.

FIG. 6 shows a case where the insertion port 7 of the connector 6 is provided laterally so that the socket 3 can be inserted from the side.

Mounting the fan and supplying power to the piezoelectric vibrator 1 can be easily done by simply inserting the socket 3 into the socket 7 of the connector 6. Supporting and removing the piezoelectric vibrator 1 can also be done using the conductive elastic contacts 2a, This can be easily done by inserting it between 2b and pulling it out.

The support of the piezoelectric vibrator 1 is good and stable because no lead wire is connected to the electrode, and the piezoelectric vibrator 1 can fully exhibit its performance.

[Effect of idea]

That is, according to the present invention, it becomes easy to install the fan, supply power to the piezoelectric vibrator 1, support and remove the piezoelectric vibrator 1, and not only can the piezoelectric vibrator 1 be easily replaced but also fully exhibit its performance. It has the effect of being able to be implemented at low cost.

[Brief explanation of the drawing]

Fig. 1 is a front view showing one embodiment of the piezoelectric fan of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a cross-sectional view taken along the line - in Fig. 2, and Figs.
FIGS. 5 and 6 are cross-sectional views showing an example of the mounting state of the piezoelectric fan of the present invention taken along lines - and - in the figure, respectively. FIGS. 5 and 6 are cross-sectional views showing other examples of the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Piezoelectric vibrator, 2a, 2b... Conductive elastic contact, 3... Socket, 4a, 4b... Projection,
5a, 5b...lateral holes.

Claims (1)

[Scope of utility model registration request] The ends of the piezoelectric vibrator are sandwiched between conductive elastic contacts and fitted into the socket, and the protrusions of each conductive elastic contact are made to protrude from the side holes of the socket.
A piezoelectric fan, characterized in that it is fitted into a connector having a socket and a contact connected to a power source on its inner wall.