Constant temperature crystal oscillator

Abstract

The invention relates to the technical field of electronic components, and discloses a constant-temperature crystal oscillator, which comprises a constant-temperature oscillation module and a shell assembly, and is characterized in that the constant-temperature oscillation module comprises a PCB substrate which is arranged along the horizontal direction and comprises a first surface provided with an etching circuit and a second surface opposite to the first surface; a heat conduction metal plate, which is arranged on the second surface of the PCB substrate, and the heat conduction metal plate comprises a heat conduction mainboard and a hollow heat conduction pipe; a crystal which is connected to the heat conduction mainboard in a manner of deviating from the PCB substrate; a temperature sensor, which is arranged in the hollow heat conduction pipe and is connected with the etching circuit; and a heating element, which is arranged on the first surface of the PCB substrate and is connected with the etching circuit. The constant temperature crystal oscillator provided by the invention is higher in temperature control precision and temperature stability, simpler in production process, lower in manufacturing cost and more suitable for mass production.

Description

technical field [0001] The invention relates to the technical field of electronic components, in particular to a constant temperature crystal oscillator. Background technique [0002] Quartz crystal oscillators, referred to as crystal oscillators, have the advantages of high frequency stability, high reliability, small size, and light weight, and are widely used in the field of modern electronic technology. With the rapid development of electronic technology, the frequency stability and precision of the system reference signal are increasingly demanding, and temperature is the most important factor affecting this performance. [0003] The working principle of the constant temperature crystal oscillator is to control the heating transistor and temperature sensor through the temperature control circuit to control the internal temperature of the constant temperature crystal oscillator at a constant temperature. When the external environment temperature changes, the internal wo...

AI Technical Summary

Problems solved by technology

However, due to the large volume of the constant temperature bath and the relatively complicated production process, the constant temperature crystal oscillator will have higher process requirements and production costs during the production process, making it difficult to achieve mass production

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