PL102251B1 - A THERMOSTAT, ESPECIALLY FOR QUARTZ GENERATORS - Google Patents

Description

The subject of the invention is tenmositat, especially for generators quartz, commonly used as a source reference frequencies in measurement systems and communication. The thermostat may also be turned off used to stabilize elements of other curves of electronic messages, for example, a model differential for voltage rtp.

State of the art. In the hitherto used thermo stats of this type, for example in a gene thermostat rator GWM-5-1 described in the article: "Sun. which technological and measurement issues in the production of highly stable quartz generators memorials "by Wieslaw Krakud, Waclaw Szczurek and Eugeniusz Zajac, News Telecommunications 6 from 1071, thermostabilized element (quartz resonator) is placed in the chamber thermostat in such a way that it is thermally insulated a new layer of air from the metal housing moire. The temperature sensor is so placed ny that it controls only part of the power directly supplied to the chamber housing from the heater, na¬ however, it has no direct effect on the power to do supplied from the chamber housing to the quartz resonator c.

In another solution of this type of thermostat on example from German patents No. 2,390,431 and No. 2,300,398 from Siemens, the thermostat includes two chambers, external and internal. Element thermostabilized (quartz resonator) place It is located in the inner chamber and it is thermal insulated from its conductive housing. Enclosures both internal and external chambers are Thermally linked, but temperature sensor position t is related to the heater (transistor), not with the heat-connecting element of the housing.

Known and used thermostats for generators quartz crystals cannot be directly controlled thermal contact between the resonator quartz and heating pad. In relation with with this transport of heat from the heating system to the re¬ zonator is not carefully controlled and held take different paths. These structures make it difficult precise temperature regulation and stabilization.

Implementation of systems guaranteeing precise re¬ temperature control at high transfer speed the heat port requires a very extensive development important control systems and thermostatic design ts.

The essence of the invention. In the thermostat according to the inventory laLzku is a structure in which a heating element and the thermostabilized element are thermally bonded with a metal plate with good thermal conductivity.

The temperature sensor is located inside a thermal armature connecting the plate with the thermal element stabilized (quartz resonator).

The design of the thermostat according to the invention is the speed of reaching the heat up to resonator, improves the accuracy of the power control heating the thermostat and stabilizing the temperature 102 251ióizsi quartz stone. The use of a heat shield on a quartz resonator enables this supply of heat to the vibrator itself, co positively influences the dynamic properties of the term numerous quartz generators.

Explanation of the drawing. The subject of the invention is shown in the example of the implementation in the figure the axial section shown in Fig. 1 the thermostat is shown, and in Fig. 2 the structure quartz generator with thermostat according to invention.

Example of an embodiment of the invention. In the thermostat shown in Fig. 1 on one side of the plate M a heater (transistor) G is attached. Po on the other side of the plate there is a ther- mostabiiized R, where it is from the M plate connected thermal armature Z. In the armature Z, put the temperature sensor T is present Cylinder C is tightly connected with one wound on it G 'radiator. Everything is surrounded by insulation thermal I.

In a quartz generator with a thermostat according to of the invention in Fig. 2, on one side of the plate M. constituting the supporting structure for the entire system an electronic power transistor G is mounted heating power regulation system of the thermostat. After place the other side of the plate M in the groove Temperature sensor T is connected. To plate M is connected a quartz resonator R is mounted in the housing heat in such a way that the whole forms a con structures with high thermal conductivity.

To the supporting structure on the other side, reso of the quartz stone R, a plate with e- elements of the UG generation system. The whole description- of the supporting structure is placed in the cylinder a tree with good thermal conductivity, on which the additional heating winding is wound in this line G '. C cylinder and M substructure plate z attached transistor G are tightly together combined and constitute the entire thermal heating system the bridge. Fixed on the other side of the M-plate there is a UR plate with elements of an electronic model high heating power regulation on which it is attached there is a plug-in connector for external connections.

Everything is carefully thermally insulated it is in a metal housing P.

Claims (3)

Patent claims 1. A thermostat, especially for quartz generators, comprising a thermostat chamber with a thermostabilized element, a heating element and a temperature control element, and thermal insulation, characterized by the fact that the supporting structure plate (M) with a heating transistor (G) fixed on it is a structure of high thermal conductivity and is connected to the thermostable element (R) by a shaped thermal armature (Z), inside which a temperature control sensor (T) is placed. 2. Thermostat according to claim A cylinder as claimed in claim 1, characterized in that a cylinder (C) with an auxiliary heating coil (G) and / or an additional heating transistor is attached to the support plate (M). 3. Thermostat according to claim The method of claim 2, wherein the cylinder (C) forms an additional thermostat chamber (K). Fig. 1102 251 Fig. 2