JPS6143094Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a high voltage generator having a positive side terminal and a ground side terminal. To provide a high voltage generator that does not wobble.

This type of high voltage generator is desired to have a simple structure, ensure reliable grounding, and be easy to assemble.

The present invention has been devised in view of these points, and one embodiment thereof will be described below with reference to the drawings.

In the figure, 1 is a piezoelectric element, 2 and 2' are aluminum spacers that are in contact with both end surfaces of the piezoelectric element 1, and 3
Reference numeral 4 indicates a metal body to be hit provided on the side of the aluminum spacer 2, and 4 is a receiver having a positive side electrode 4a provided on the side of the aluminum spacer 2'. A slit 5b is provided at the side of the body 3, and the body 3 is inserted and fixed inside an insulating outer box 5 having appropriate elasticity, and these constitute an outer box unit. Reference numeral 6 denotes an inner box having a cam window 6a, and a hammer 8 having a pin 7 fixed thereon is slidably housed inside the inner box 6, and a hammer spring 9 is housed in a state in which the hammer 8 is preloaded. The inner box 6 of the inner box unit thus constructed is slidably inserted into the outer box 5, and the pin 7 is inserted into the cam window 6.
a and protrudes outward from the L-shaped window 5a. 10 is the inner box 6 inserted into the outer box 5
This is a spring for returning the inner box. Reference numeral 11 denotes a ground side terminal bent into an L shape and having a triangular tooth-like protrusion 11a that is slightly wider than the width of the slit 5b and is easy to press fit into and difficult to pull out.This ground side terminal 11 is press fit into the slit 5b. and is pressed by the inner box return spring 10 to abut against the struck metal body 3.

For assembly, first, the receiving plate 4, aluminum spacer 2', piezoelectric element 1, aluminum spacer 2, and struck metal body 3 are housed in the outer box 5, and then the ground terminal 11 is press-fitted into the slit 5b. During this press-fitting, since the slit 5b is formed in the outer box 5 made of plastic or the like with moderate elasticity, the triangular tooth-like protrusion 1 is slightly wider than the width of the slit 5b due to its contractility.
1a can be press-fitted, and after press-fitting, the earth side terminal 11 will not come out from the slit 5b because of the projection 11a. Thereafter, the spring 10 for returning the inner box is put into the outer box 5, and the inner box 6 containing the hammer 8, hammer spring 9, etc. is slidably inserted into the outer box 5. is brought into pressure contact with the ground side terminal 11, and the ground side terminal is further pushed and brought into pressure contact with the struck metal body 3, thereby establishing an electrical connection.

The present invention is constructed as described above, and by simply press-fitting the specially shaped ground side terminal into the slit formed in the outer box, it is possible to securely connect the ground without causing poor contact, and the terminal also does not wobble. It is characterized by being fixed without any
It also has excellent features in terms of a significant reduction in work man-hours.

[Brief explanation of the drawing]

FIG. 1 is a front view showing an embodiment of a high voltage generator according to the present invention, FIG. 2 is a sectional view of the same, and FIG. 3 is an enlarged exploded perspective view of the same. 1... Piezoelectric element, 3... Metal object to be hit, 4...
Receiver, 5...outer box, 5a...L-shaped window, 5b...
...Slit, 6...Inner box, 6a...Cam window, 7...
...pin, 8...hammer, 9...hammer spring,
DESCRIPTION OF SYMBOLS 10... Spring for returning the inner box, 11... Ground side terminal, 11a... Triangular tooth-shaped protrusion.

Claims (1)

[Scope of utility model registration request] An inner box unit that is made into a unit by fixing a hammer slidably inside an inner box having a cam window on the outer periphery, a hammer spring that preloads the hammer, and a pin protruding from the cam window to the hammer. and an outer box unit in which a receiver that also serves as a high voltage terminal, one piezoelectric element, and a metal object to be hit are inserted inside an insulating outer box with moderate elasticity and an approximately L-shaped window on the outer periphery. and a spring for returning the inner box stored in the outer box, the inner box is slidably inserted into the outer box, and a slit is provided on the outer periphery of the outer box on the side of the hit metal body. A height formed by press-fitting and fixing a ground side terminal having a triangular tooth-shaped protrusion slightly wider than the width of the slit so that it is pressed by the inner box return spring and comes into contact with the hit metal body. Voltage generator.