CN203827293U - Plum shock-absorbing type shock resistant constant-temperature crystal oscillator - Google Patents

Abstract

The utility model discloses a plum shock-absorbing type shock resistant constant-temperature crystal oscillator, relates to the technical field of crystal oscillators, and solves a technical problem of improving the frequency stability. The oscillator comprises a crystal resonator and an oscillating circuit board carrying an oscillating circuit, wherein the crystal resonator is fixed on the oscillating circuit board and electrically connected with the oscillating circuit on the oscillating circuit board. The plum shock-absorbing type shock resistant constant-temperature crystal oscillator is characterized by further comprising a housing, a fixed plate and at least three elastic arc-shaped shock-absorbing steel wires; the housing is fixedly connected with the oscillating circuit board and covers the crystal oscillator, and the fixed plate and the housing are separated from each other; the shock-absorbing steel wires are symmetrically arranged around a housing shaft into the shape of a flower, the arc top part of each of the shock-absorbing steel wires is fixedly connected with the fixed plate, and two end parts of each of the shock-absorbing steel wires are fixedly connected with the housing. The oscillator provided by the utility model has high frequency stability.

Description

Plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator

Technical field

The utility model relates to crystal oscillator technology, particularly relates to a kind of technology of plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator.

Background technology

High frequency crystal oscillator is the critical component in electronic equipment, and it is widely used in, in the equipment such as navigation, communication, radar, measuring instrument, being called as " heart " of this class of electronic devices as reference frequency source (reference source).

As shown in Figure 4, traditional crystal oscillator mainly consists of oscillating circuit board 22 and crystal resonator 25, and each pin of crystal resonator 22 is all directly fixed on oscillating circuit board 25.

When traditional crystal oscillator is worked in vibration environment, the external force such as the vibration that external environment condition produces, centrifugal and impact can be directly transferred on crystal resonator by oscillating circuit board, thereby can cause frequency stability (the being phase noise) variation of crystal resonator.

Utility model content

For the defect existing in above-mentioned prior art, technical problem to be solved in the utility model is to provide the plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator that a kind of frequency stability is high.

In order to solve the problems of the technologies described above, a kind of plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator provided by the utility model, comprise crystal resonator, and be equipped with the oscillating circuit board of oscillating circuit, described crystal resonator is fixed on oscillating circuit board, and be electrically connected with the oscillating circuit on oscillating circuit board, it is characterized in that: also comprise case, fixed head, and at least three have flexible arc line shaped damping steel wire;

Described case and oscillating circuit board are affixed, and cover cap lives crystal resonator, and described fixed head and case are separated from each other;

Each damping steel wire is set as colored shape around case axial symmetry cloth, and the arc top of each damping steel wire is all affixed with fixed head, and the both ends of each damping steel wire are all affixed with case.

Further, on described crystal resonator, be fixed with balancing weight.

The plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator that the utility model provides, case and oscillating circuit board are affixed, and case is arranged on fixed head by the many colored shape shock-damping structures with flexible arc line shaped damping steel wire composition, the external force acting on fixed head can significantly decay after spending shape shock-damping structure buffering, can effectively reduce the impact of external vibration on crystal resonator, its frequency stability will be far above traditional crystal oscillator.

Accompanying drawing explanation

Fig. 1 is crystal resonator in the plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator of the utility model embodiment and the structural representation of oscillating circuit board;

Fig. 2 is the schematic perspective view of the plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator of the utility model embodiment;

Fig. 3 is the vertical view of the plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator of the utility model embodiment;

Fig. 4 is the structural representation of traditional crystal oscillator.

Embodiment

Below in conjunction with accompanying drawing explanation, embodiment of the present utility model is described in further detail, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof, all should list protection range of the present utility model in.

As shown in Figure 1-Figure 3, a kind of plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator that the utility model embodiment provides, comprise crystal resonator 5, and be equipped with the oscillating circuit board 2 of oscillating circuit, described crystal resonator 5 is fixed on oscillating circuit board 2, and be electrically connected with the oscillating circuit on oscillating circuit board, it is characterized in that: also comprise case 6, fixed head 1, and four have flexible arc line shaped damping steel wire 3;

Described case 6 is affixed with oscillating circuit board 2, and cover cap lives crystal resonator 5, and described fixed head 1 is separated from each other with case 6;

Each damping steel wire 3 is set as colored shape around case 6 axial symmetry cloth, and the arc top of each damping steel wire 3 is all affixed with fixed head 1, and the both ends of each damping steel wire 3 are all affixed with case 6.

In the utility model embodiment, on described crystal resonator 5, be fixed with balancing weight 4, the weight of crystal resonator 5 one sides is increased to some extent, can promote damping, buffering effect.

The utility model embodiment is applicable to being arranged on the electronic equipment of needs reference frequency source and uses, during installation, fixed head is directly fixed on electronic equipment, and all unsettled settings of case and oscillating circuit board, making to conduct by electronic equipment the external force of coming can only act directly on fixed head, while working in vibration environment, the external force acting on fixed head conducts to by fixed head the colored shape shock-damping structure that each damping steel wire forms, after flower shape shock-damping structure buffering, conduct to oscillating circuit board and crystal resonator again, External Force Acting while conducting to crystal resonator is significantly decayed by flower shape shock-damping structure, thereby less on the impact of crystal resonator, the frequency stability of crystal resonator is also relatively high.

The traditional crystal oscillator that the utility model embodiment compares same frequency in frequency stability improves significantly, the crystal oscillator of 10MHz frequency of take is example, under the acceleration environment of 1g sine wave, the stationary value of frequency is at 0.2ppb/g, and the frequency stability value of traditional crystal oscillator is at 1ppb/g.

Claims (2)

1. a plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator, comprise crystal resonator, and be equipped with the oscillating circuit board of oscillating circuit, described crystal resonator is fixed on oscillating circuit board, and be electrically connected with the oscillating circuit on oscillating circuit board, it is characterized in that: also comprise case, fixed head, and at least three have flexible arc line shaped damping steel wire;

Described case and oscillating circuit board are affixed, and cover cap lives crystal resonator, and described fixed head and case are separated from each other;

Each damping steel wire is set as colored shape around case axial symmetry cloth, and the arc top of each damping steel wire is all affixed with fixed head, and the both ends of each damping steel wire are all affixed with case.

2. plum blossom shock-absorbing type antidetonation constant-temperature crystal oscillator according to claim 1, is characterized in that: on described crystal resonator, be fixed with balancing weight.