CN-122026811-A - Crystal oscillator constant temperature structure

Abstract

The invention provides a crystal oscillator constant temperature structure which comprises a base, a printed board, a quartz resonator, a heating element power tube, a crystal, a thermistor and a cover plate, wherein the base is tightly connected with the printed board through a screw hole 1 and is fixed on the printed board, the heating element power tube in the heating circuit is fixed in the constant temperature structure through a screw hole 2, the crystal is tightly connected with the base through the constant temperature structure, a crystal leading leg is connected with the printed board through a through hole 3, the thermistor is positioned in a space 4 at the base of the constant temperature structure and is welded on the printed board, the cover plate is tightly connected with a bottom seat of the constant temperature groove through a screw hole 5, the crystal is installed inside the constant temperature structure through the constant temperature structure crystal oscillator, and the space 4 at the base of the constant temperature structure is used for reducing temperature induction delay and effectively ensuring a temperature control effect.

Inventors

• QIE LI
• LUO MENGJIA
• JIA LINA
• WANG JU
• CHEN JINHE
• QIAO ZHIFENG
• WANG CHAO
• PENG HUILI
• LIU SHA
• YU PANPAN
• SU XIA

Assignees

• 北京无线电计量测试研究所

Dates

Publication Date

20260512

Application Date

20251226

Claims (8)

1. 1. The constant temperature structure of the crystal oscillator is characterized by comprising a base, a printed board, a quartz resonator, a heating element power tube, a crystal, a thermistor and a cover plate.
2. 2. The crystal oscillator constant temperature structure according to claim 1, wherein the base is tightly connected with the printed board through the screw hole (1) to fix the base on the printed board.
3. 3. A crystal oscillator thermostatic structure according to claim 2 wherein the heating element power tube in the heating circuit is fixed in the thermostatic structure by screw holes (2).
4. 4. A crystal oscillator thermostatic structure according to claim 3 wherein the crystal is closely connected by the thermostatic structure base and the crystal legs are connected to the printed board by vias (3).
5. 5. A crystal oscillator thermostatic structure according to claim 4, characterized in that the thermistor is soldered to the printed board in a space (4) at the base of the thermostatic structure.
6. 6. A crystal oscillator thermostatic structure according to claim 5 wherein the cover plate is tightly connected to the base of the thermostatic tank by means of screws through screw holes (5).
7. 7. The crystal oscillator thermostatic structure according to claim 6 wherein the thermostatic structure crystal oscillator mounts the crystal inside the thermostatic structure.
8. 8. A crystal oscillator thermostatic structure according to claim 7, characterized in that the space (4) at the base of the thermostatic structure is used to reduce temperature-induced delay.

Description

Crystal oscillator constant temperature structure Technical Field The invention relates to the technical field of crystal oscillator constant temperature, in particular to a crystal oscillator constant temperature structure. Background The constant temperature crystal oscillator is used as a high stable frequency source to provide stable time and frequency reference for various electronic devices, and is widely applied to mobile communication, navigation, radar, electronic countermeasure and various measuring devices, and the performance of the constant temperature crystal oscillator often influences key performance indexes of the system, so the constant temperature crystal oscillator is often called as a core of the electronic device. Along with the continuous development of various application fields, the temperature environment adaptability requirement of the constant temperature crystal oscillator is also continuously improved. The traditional constant temperature crystal oscillator only depends on a temperature control circuit to control temperature, the temperature control precision is poor, the temperature gradient of a printed board is large, and the frequency variation of the crystal oscillator in a wide temperature control range is large, so that the temperature frequency stability index of the crystal oscillator is affected. In the traditional constant temperature crystal oscillator product, key components are directly arranged on a printed board through a copper plate, heat balance is conducted by air in a crystal oscillator, heat preservation measures are poor, and the key components are greatly influenced by external environment. Therefore, how to effectively ensure the temperature control effect becomes one of the prior art problems to be solved. Disclosure of Invention The invention provides a constant temperature structure of a crystal oscillator, which is used for effectively ensuring the temperature control effect. In a first aspect, a crystal oscillator constant temperature structure is provided, which comprises a base, a printed board, a quartz resonator, a heating element power tube, a crystal, a thermistor and a cover plate. In one embodiment, the base is tightly connected with the printed board through the screw holes 1, and is fixed on the printed board. In one embodiment, the heating element power tube in the heating circuit is fixed in the constant temperature structure through the screw hole 2. In one embodiment, the crystals are closely connected by a base of a thermostatic structure, and the crystal legs are connected with the printed board by the via holes 3. In one embodiment, the thermistor is located in the space 4 at the base of the thermostatic structure and soldered to the printed board. In one embodiment, the cover plate is tightly connected with the bottom seat of the constant temperature tank by using screws through screw holes 5. In one embodiment, a thermostatic structure crystal oscillator mounts a crystal inside a thermostatic structure. In one embodiment, the space 4 at the base of the thermostatic structure is used to reduce temperature-induced delays. The embodiment of the invention provides a crystal oscillator constant temperature structure which comprises a base, a printed board, a quartz resonator, a heating element power tube, a crystal, a thermistor and a cover plate, wherein the base is tightly connected with the printed board through a screw hole 1 and is fixed on the printed board, the heating element power tube in the heating circuit is fixed in the constant temperature structure through a screw hole 2, the crystal is tightly connected with the base through the constant temperature structure, a crystal leading leg is connected with the printed board through a through hole 3, the thermistor is positioned in a space 4 of the base of the constant temperature structure and is welded on the printed board, the cover plate is tightly connected with a bottom seat of the constant temperature groove through a screw hole 5, the crystal is installed in the constant temperature structure through the constant temperature structure crystal oscillator, and the space 4 of the base of the constant temperature structure is used for reducing temperature induction delay and effectively ensuring a temperature control effect. Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. Drawings The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serv