JPH01268304A - Holding structure for crystal resonator - Google Patents

Abstract

PURPOSE:To obtain a satisfactory impact resistance, to improve the workability at the time of assembly, and also, to reduce the cost by crushing the tip parts of terminals like plates which are faced to each other and forming a slit for fitting and installing an edge part of a crystal plate in this tip part. CONSTITUTION:A pair of terminals 12 are provided vertically on a base 11. These terminals 12 consist of a wire rod such as a piano wire, etc., formed like plates which are faced to each other by crushing the tip parts 13, and rise parts 14 between these tip parts 13 and the base 11 are formed like plates by crushing them in the direction vertical to the plate surface of the tip parts 13. Slits 15 are formed along the axial direction in the tip parts 13, and an edge end part of a crystal plate 16 which has been formed like a round plate is fitted and installed between these slits 15 and fixed by a conductive adhesive agent, etc. In such a way, by bringing a wire rod to press working, the terminal 12 of a desired shape can be obtained easily, the cost of working is also comparatively low, sufficient elasticity is obtained, and the workability of a work for inserting the crystal plate is also satisfactory.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a holding structure for a crystal resonator that has good assembly productivity and excellent characteristics.

(Technical background of the invention and its problems) Crystal resonators have high frequency stability and can operate as stable frequency sources for long periods of time, and are widely used as time and frequency standards for various electronic devices.

Such a quartz crystal resonator is constructed by cutting a quartz crystal at a predetermined angle with respect to the crystal axis, forming it into a plate shape, holding it with a holding member, and storing it in a container.

FIGS. 2 and 3 are perspective views showing different conventional examples of thickness shear crystal resonators.

FIG. 2 shows a plate-like member that holds a crystal plate.One end of a strip-shaped thin metal plate 3 is welded to the tip of a pair of terminals 2 implanted in a base 1 so that they face each other. A slit 4 is formed in 3 along the longitudinal direction. Then, the edge of the crystal plate 5 formed into a round plate shape is fitted into the slit 4 of the thin metal plate 3, and a conductive adhesive or the like is applied thereto to fix it and to obtain electrical continuity. ing.

In this way, in the case where the crystal plate 5 is held by the thin metal plate 3, the thin metal plate 3 can be easily spread outward, and the work efficiency when sandwiching the crystal plate 5 between the thin metal plates 3 is relatively high. Although it is in good condition, it has low impact resistance due to its structural rigidity, and is particularly prone to breakage and cracks if it uses a thin crystal plate.

In addition, in FIG. 3, one end of a wire 6 such as a piano wire is wound around the tip of the terminal 2 and fixed with a wire, and the other end is formed into a coil shape and the edge of the crystal plate 50 is sandwiched. It is fixed with a conductive adhesive or the like to last for one time and to obtain electrical continuity.

In this way, in the case where the crystal plate is held by the wire rod 6, the wire rod can exhibit sufficient elasticity, so the impact resistance is good, but the processing of the wire rod 6 is troublesome, and the workability when sandwiching the crystal plate is poor. There was a problem.

(Objective of the Invention) The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a crystal resonator holding structure that provides good impact resistance and also has good workability during assembly. This is the purpose.

(Summary of the Invention) The present invention involves implanting a pair of terminals made of metal wire in a base, crushing the tips of the terminals into plate shapes facing each other, and connecting the tips between the tips and the base with the tips of the terminals. A slit is formed at the tip of the pair of terminals into which the edge of the crystal plate is fitted, and the edge of the crystal plate is fitted into the slit to form a conductive phase. It is characterized by being firmly fixed.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to a perspective view shown in FIG.

In the figure, reference numeral 11 indicates a metal thin plate that is pressed into a substantially oval shape, and the hollow portion is filled with an insulating material such as hermetic glass.

Then, a pair of terminals 12 are implanted in this herm 11.

This terminal 12 is made of a wire material such as a piano wire, and the tip end 1
3 is crushed and formed into opposing plate shapes, and this 5'i
: The rising part 14 between the end and the base is the tip part 1
It is similarly formed into a plate shape by crushing it in a direction perpendicular to the plate surface of 3.

- It is fixed to the tip portion 13 along the axial direction with a pickpocket adhesive or the like.

The base 11 is covered with a cover (not shown) to airtightly seal the crystal plate and mechanically protect it.

Such a configuration can be achieved by press-working a wire such as a piano wire (thereby, the terminal 12 in the desired shape can be easily obtained, and the processing cost is also relatively low. Since the L-shaped part 14 and the tip part 1-3 are each shaped like a plate and are formed so that their plate surfaces are perpendicular to each other,
Sufficient elasticity is obtained, and since the distal end portion 13 is formed into a plate shape, it can easily spread outward, and the workability of inserting the crystal plate is also good.

Note that the present invention is not limited to the above embodiments,
For example, when forming the tip 13 of the terminal 12 into a plate shape,
The both sides may be curved inward to form a gutter shape. In this way, the work of inserting the crystal plate can be performed more easily.

Further, the material of the terminal 12 is not limited to piano wire, and any suitable wire material having appropriate elasticity, mechanical strength, and workability may be used.

(Effects of the Invention) As described in detail below, the present invention provides a holding structure for a crystal resonator that has good impact resistance, good workability during assembly, and is inexpensive. can.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, FIG.
The figures are perspective views showing different conventional holding structures for crystal resonators. 11... φ pace 12... terminal 13... tip 14... σ rising part 15... pot life/slit 16... crystal plate Fig. 1

Claims (2)

[Claims] (1) A metal wire material whose base and tip are pressed into a plate shape facing each other, and the space between the tip and the base is pressed into a plate shape in a direction perpendicular to the plate surface of the tip and then implanted in the base. a pair of terminals, a slit formed at the tips of the pair of terminals into which the edge of a crystal plate is fitted, a crystal plate with the edge fitted into the slit, and a crystal plate with the edge fitted into the slit; A holding structure for a crystal resonator, comprising: a conductive material fixed to the edge of the slit; (2) A crystal resonator holding structure according to claim 1, wherein the crystal resonator is a thickness shear crystal resonator.