Temperature compensation type oscillator capable of remaining constant temperature

Abstract

The invention relates to a temperature-compensating oscillator device which can keep the temperature constant. The oscillator device comprises a shell, a circuit board arranged inside the shell, a suspended temperature-compensating oscillator arranged on the circuit board and a heating control circuit arranged on the circuit board. The shell is vacuumed and is provided with a plurality of conductive platforms at intervals for jointly supporting the circuit board and a plurality of exposed conductive connection points which are electrically connected with one end of the conductive platforms so as to electrically connect each conductive connection point with the circuit board by each conductive platform. By virtue of the high erection of the circuit board and the small contact area between the circuit board and conductive platform, the thermal conduction of the heat generated by the heating control circuit to the shell is reduced; in addition, the vacuumed shell can effectively eliminate thermal convection and function as a thermal radiation blocking layer by being matched with a gold-plated layer on the surface of the shell, thus guaranteeing that the interior of the shell stays at the constant temperature status. The temperature-compensating oscillator device can effectively reduce thermal conduction and block the thermal convection, thus keeping the temperature-compensating oscillator at stable working temperature, and being rather practical.

Description

technical field [0001] The present invention relates to a temperature-compensated oscillator device that maintains a constant temperature, in particular to a temperature-compensated device that can effectively reduce heat conduction and block thermal convection, so that the temperature-compensated oscillator can be kept at a stable operating temperature. oscillator device. Background technique [0002] Quartz crystal temperature-compensated oscillators are temperature-compensated oscillators with the highest accuracy and stability. They provide frequency references in applications such as global positioning system (GPS) equipment, mobile communications and wireless systems. It is mainly based on ordinary crystal oscillator (SPXO) and voltage controlled crystal oscillator (VCXO), but because the frequency of quartz crystal oscillator will change with temperature, in order to solve this problem, there is a constant temperature controlled crystal oscillator. The advent of the ...

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Problems solved by technology

[0004] However, because the periphery of the circuit board 11 is in contact with the inner wall of the housing 15, and the plurality of pins 14 are connected to the circuit board 11 and the bottom plate 16 and protrude out of the housing 15, the heat generated by the heating circuit 12 is still easy to pass through the circuit board. 11. The paths of the pins 14 and the bottom plate 16, as well as the paths of the circuit board 11 and the housing 15 conduct heat conduction, and then dissipate to the outside world, so that the heating circuit 12 must be frequently activated to heat the housing 15 to maintain a constant temperature. Therefore, the power consumption increases

[0005] In addition, because the overall volume of the existing known constant temperature controlled crystal oscillato...

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