WO2011026276A1 - 恒温晶体振荡器 - Google Patents

恒温晶体振荡器 Download PDF

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Publication number
WO2011026276A1
WO2011026276A1 PCT/CN2009/074613 CN2009074613W WO2011026276A1 WO 2011026276 A1 WO2011026276 A1 WO 2011026276A1 CN 2009074613 W CN2009074613 W CN 2009074613W WO 2011026276 A1 WO2011026276 A1 WO 2011026276A1
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WIPO (PCT)
Prior art keywords
circuit board
crystal oscillator
temperature
external circuit
constant
Prior art date
Application number
PCT/CN2009/074613
Other languages
English (en)
French (fr)
Inventor
刘朝胜
Original Assignee
广东大普通信技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东大普通信技术有限公司 filed Critical 广东大普通信技术有限公司
Priority to US13/144,425 priority Critical patent/US8446226B2/en
Publication of WO2011026276A1 publication Critical patent/WO2011026276A1/zh

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Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03L—AUTOMATIC CONTROL, STARTING, SYNCHRONISATION OR STABILISATION OF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
    • H03L1/00—Stabilisation of generator output against variations of physical values, e.g. power supply
    • H03L1/02—Stabilisation of generator output against variations of physical values, e.g. power supply against variations of temperature only
    • H03L1/04—Constructional details for maintaining temperature constant

Definitions

  • the present invention relates to a crystal oscillator, and more particularly to an oven controlled crystal oscillator. Background technique
  • Quartz crystal oscillators have been used for decades, and because of their high frequency stability, they have always played an important role in the field of electronic technology. In particular, the rapid development of the information technology industry has made this crystal oscillator alive. Quartz crystal oscillators are used as standard frequency sources or pulse sources in telecommunications, satellite communications, mobile telephony systems, global positioning systems, navigation, remote controls, aerospace, high-speed computers, precision measuring instruments, and consumer consumer electronics. Providing a frequency reference is currently not a substitute for other types of oscillators. Quartz crystal oscillators are classified into non-temperature compensated crystal oscillators, temperature compensated crystal oscillators, voltage controlled crystal oscillators, constant temperature crystal oscillators, and digital / ⁇ ⁇ compensation crystal oscillators.
  • the constant temperature crystal oscillator is the current crystal oscillator with the highest frequency stability and accuracy. It has very good performance in terms of aging rate, temperature stability, long-term stability and short-term stability, so it is often used as a precision time-frequency.
  • Signal sources are widely used in electronic devices such as global positioning systems, communications, metering, telemetry and remote control, spectrum and network analyzers.
  • the constant temperature crystal oscillator is a crystal oscillator that uses a constant temperature bath to keep the temperature of the crystal oscillator or quartz crystal oscillator constant, and minimizes the variation in the oscillator output frequency caused by the change in ambient temperature.
  • the oven-controlled crystal oscillator in order to further reduce the influence of temperature variation to improve the frequency stability of the oven-controlled crystal oscillator, the oven-controlled crystal oscillator generally has an internal circuit board and an external circuit board, and the internal circuit board includes a crystal oscillation circuit due to the crystal.
  • the oscillating circuit is susceptible to temperature and its working performance. Therefore, the internal circuit board is located in the thermostatic bath.
  • the external circuit board includes a temperature control circuit and a power supply circuit.
  • the external circuit board is fixedly connected to the bottom of the thermostat and electrically connected to the internal circuit board.
  • the setting of the constant temperature bath ensures the frequency stability of the constant temperature crystal oscillator, but the prior art constant temperature crystal oscillator has the following problems: First, the thermostatic bath is disposed on the external circuit board, and the structure makes the height of the constant temperature crystal oscillator Too high, it is not conducive to the miniaturization of the product; Second, the internal circuit board uses the bottom plate to take out the needle, so that the internal electricity The circuit board is electrically connected to an external circuit board located under the thermostatic bath.
  • the structure is susceptible to the electrical connection between the internal circuit board and the external circuit board due to the oscillation during the assembly process, or the thermostatic bath is separated from the external circuit due to the oscillation. board.
  • the present invention provides an oven controlled crystal oscillator including a thermostatic bath, an internal circuit board, an external circuit board, a heating element, and a temperature sensor, wherein the internal circuit board is disposed in the thermostatic bath and passes through a lead pin and The external circuit board is electrically connected, the internal circuit board includes a crystal oscillation circuit, and the external circuit board includes a temperature control circuit and a power supply circuit electrically connected to the temperature control circuit, and the heating element and the temperature sensor are both And electrically connected to the external circuit board, wherein: the external circuit board is provided with a through slot, and the thermostatic bath is installed in the through slot.
  • the external circuit board of the constant temperature crystal oscillator of the present invention is provided with a through slot, and the thermostatic bath is installed in the through slot of the external circuit board, the structure greatly reduces the overall height of the constant temperature crystal oscillator, conforms to today's The miniaturization trend of electronic products is conducive to the miniaturization of the client products; and, because of the through holes, the layout structure on the external circuit board is rationally and skillfully utilized, the circuit board is simplified, and the constant temperature crystal oscillator is lowered.
  • the overall weight is arranged to be fixed to the external circuit board by the external circuit board to the constant temperature slot, thereby improving the electrical connection performance between the external circuit board and the internal circuit board, and improving the constant temperature crystal oscillator. stability.
  • the pin extends from the side wall of the thermostatic chamber and extends in a direction parallel to the outer circuit board. Since the pin arrangement extends in a direction parallel to the external circuit board, the electrical connection performance of the oven crystal oscillator as a whole is enhanced on the basis of realizing the electrical connection between the internal circuit board and the external circuit board.
  • the heating element is fixedly connected to the outer surface of the side wall of the thermostatic bath.
  • the heating element is used to heat the thermostat to equalize the temperature in the bath of the bath.
  • the junction of the bottom and the side wall of the thermostatic bath is recessed inward to form a recess, the heating The component is mounted to the recess.
  • the heating element is mounted on the recessed portion, so that the position of the heating element is set more rationally, not only the spatial arrangement of the constant temperature crystal oscillator is reasonably arranged, but also the temperature gradient in the thermostatic bath is more effectively improved.
  • the temperature sensor is fixedly connected to the outer surface of the sidewall of the thermostatic bath.
  • the temperature sensor detects and feedbacks the temperature of the constant temperature bath to equalize the temperature in the constant temperature bath and reduce the temperature of the constant temperature bath from being affected by the outside world.
  • the oven controlled crystal oscillator further comprises a copper tube fixedly connected to the outer surface of the side wall of the thermostatic bath, and the temperature sensor is disposed in the copper tube.
  • FIG. 1 is a schematic view showing the structure of a first embodiment of an oven controlled crystal oscillator of the present invention.
  • Figure 2 is an exploded view of the oven controlled crystal oscillator of Figure 1.
  • Figure 3 is a schematic view showing the structure of an external circuit board in the oven controlled crystal oscillator.
  • FIG. 4 is a schematic structural view of a second embodiment of the oven controlled crystal oscillator of the present invention.
  • Fig. 5 is a structural schematic view of the thermostatic bath in the constant temperature crystal oscillator shown in Fig. 4.
  • the present invention provides an oven controlled crystal oscillator which has the advantages of high stability and being thin and light.
  • the oven controlled crystal oscillator 1 includes a thermostatic bath 11, an internal circuit board 12, an external circuit board 13, a heating element 14, and a temperature sensor 15, which is comprised of a quartz crystal 121 and an oscillating element 122.
  • a crystal oscillation circuit composed of the internal circuit board 12 is fixedly mounted in the thermostatic chamber 11.
  • the external circuit board 13 includes a temperature control circuit (not shown) and a power supply electrically connected to the temperature control circuit.
  • the heating element 14 and the temperature sensor 15 are electrically connected to the external circuit board 13 .
  • the external circuit board 13 is provided with a through slot 131, and the through slot 131 penetrates through the external circuit board 13, and the thermostatic bath 11 is installed in the through slot 131.
  • the thermostatic bath 11 passes through the through slot 131 and is fixedly connected to the external circuit board 13; in detail, the sidewall outer surface 1111 of the thermostatic bath 11 is bonded by an adhesive.
  • the external circuit board 13 is fixedly connected to the central portion of the thermostatic bath 11, and the thermostatic bath 11 is partitioned into two parts: an upper portion 112 of the thermostatic bath above the external circuit board 13, and under the external circuit board 13 The lower part of the thermostatic bath 113.
  • the oven controlled crystal oscillator 1 further includes a side pin 121, the side pin 121 is a conductor, and one end of the side pin 121 is electrically connected to the inner circuit board 12 and is fixed to the side of the inner circuit board 12.
  • the other end of the lead pin 121 passes through the side wall 111 of the thermostatic bath 11, and the lead pin 121 extends in a direction parallel to the external circuit board 13 to the external circuit board 13, the external circuit The board 13 is electrically connected to the internal circuit board 12 through the side pins 121.
  • the oven controlled crystal oscillator 1 of the present invention is disposed by passing the constant temperature bath 11 through the through slot 131 of the external circuit board 13, thereby reducing the overall height of the oven crystal oscillator 1, reducing the weight of the oven crystal oscillator 1;
  • the manner in which the side of the circuit board 12 is ejected and the internal circuit board 12 are electrically connected to the external circuit board 13 improves the electrical connection performance of the oven crystal oscillator 1, thereby improving the stability of the output frequency of the oven crystal oscillator 1.
  • the junction of the bottom surface 114 and the sidewall 111 of the thermostatic bath 11 is recessed inwardly to form a recess 115, and the recess 115 is located in the lower portion 113 of the thermostat, in this embodiment.
  • the bottom portion 114 of the thermostatic bath 11 has a quadrangular shape, and the recessed portions 115 are four, respectively located at four corners of the lower portion 113 of the thermostatic bath.
  • the heating element 14 is a heating tube, and the heating elements 14 are also four, respectively located in the four recesses 115.
  • the heating element 14 is mounted in the recess 115 by soldering.
  • Four of the heating elements 14 are electrically connected to the external circuit board 13.
  • the arrangement of the heating element 14 makes the heating of the constant temperature bath 11 more uniform, effectively improves the temperature gradient inside the thermostatic bath 11, thereby improving the stability of the output frequency of the constant temperature crystal oscillator 1, and improving the constant temperature crystal oscillator. 1 work efficiency.
  • the temperature sensor 15 is fixedly connected to the On the side wall outer surface 1111 of the constant temperature bath chamber 11, the temperature sensor 15 is fixedly connected to the lower portion 113 of the constant temperature bath.
  • the temperature sensor 15 is electrically connected to a temperature control circuit in the external circuit board 13, the temperature sensor 15 detects and feedbacks the temperature of the thermostat bath 11, and the temperature sensor 15 controls the thermostat 11 through the temperature control circuit.
  • the heating element 14 on the upper portion of the thermostatic chamber 11 maintains the temperature in the constant temperature bath 11, and reduces the influence of the outside temperature on the constant temperature bath 11.
  • the number of the heating elements of the constant temperature crystal oscillator in the above embodiment is not limited to four, and is designed as the case may be.
  • the groove in the above embodiment is adjusted according to the number of the heating elements. design.
  • the oven controlled crystal oscillator 2 includes a thermostatic bath 21, an internal circuit board (not shown), an external circuit board 23, a heating element 24, and a temperature sensor (not shown), and the heating element 24 and the temperature sensor are both
  • the external circuit board 23 is electrically connected, and the internal circuit board is fixedly mounted in the constant temperature bath 21.
  • the internal circuit board is electrically connected to the external circuit board 23 by a side pin 221 passing through the thermostatic chamber 21.
  • the oven crystal oscillator 2 has no recess 115; the oven crystal oscillator 2 further includes a copper tube 26, and the heating element 24 is fixedly connected to the side wall of the thermostatic bath 21. Outer surface 2111. Specifically, the copper tube 26 is fixedly connected to the sidewall outer surface 2111 of the thermostatic bath 21 by soldering, and the copper tube 26 is fixedly connected to the upper portion 212 of the thermostat; the temperature sensor is disposed on the copper The inside of the tube 26. In detail, the heating element 24 is fixedly attached to the side wall outer surface 2111 of the thermostatic chamber 21 by soldering.
  • the temperature sensor in the oven controlled crystal oscillator of the present invention is not limited to the design method in the above embodiment, and the addition of the copper tube depends on the specific situation. Further, the manner in which the thermostatic chamber is connected to the external circuit board is not limited to the use of an adhesive, and the thermostatic bath and the external circuit board may be connected by soldering or snapping.

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  • Oscillators With Electromechanical Resonators (AREA)

Description

恒温晶体振荡器
技术领域
本发明涉及一种晶体振荡器， 尤其涉及一种恒温晶体振荡器。 背景技术
石英晶体振荡器的应用已有几十年的历史， 因其具有频率稳定度高这一特 点， 故在电子技术领域中一直占有重要的地位。 尤其是信息技术产业的高速发 展， 更使这种晶体振荡器煥发出勃勃生机。 石英晶体振荡器在远程通信、 卫星 通信、 移动电话系统、 全球定位系统、 导航、 遥控、 航空航天、 高速计算机、 精密计测仪器及消费类民用电子产品中， 作为标准频率源或脉冲信号源， 提供 频率基准， 是目前其它类型的振荡器所不能替代的。 石英晶体振荡器分非温度 补偿式晶体振荡器、 温度补偿晶体振荡器、 电压控制晶体振荡器、 恒温晶体振 荡器和数字化 / μ ρ补偿式晶体振荡器等几种类型。 其中， 恒温晶体振荡器是目 前频率稳定度和精确度最高的晶体振荡器， 它在老化率、 温度稳定性、 长期稳 定度和短期稳定度等方面的性能都非常好， 因此常作为精密时频信号源被广泛 应用于全球定位系统、 通信、 计量、 遥测遥控、 频谱及网络分析仪等电子仪器 中。
由于石英晶体的振荡特性随温度的变化而变化， 从而会影响石英晶体振荡 器的输出频率。 恒温晶体振荡器是利用恒温槽使晶体振荡器或石英晶体振子的 温度保持恒定， 将由周围温度变化引起的振荡器输出频率变化量削减到最小的 晶体振荡器。 在现有技术中， 为了进一步减小温度变化的影响， 以提高恒温晶 体振荡器的频率稳定度， 恒温晶体振荡器一般具有内部电路板和外部电路板， 内部电路板包括晶体振荡电路， 由于晶体振荡电路容易受温度影响其工作性能， 故内部电路板位于恒温槽内， 外部电路板包括控温电路和供电电路， 外部电路 板固定连接在恒温槽的底部， 并与内部电路板电性连接。 恒温槽的设置保证恒 温晶体振荡器的频率稳定度， 但是现有技术中的恒温晶体振荡器有以下问题： 其一， 恒温槽设置在外部电路板之上， 该结构使恒温晶体振荡器的高度过高， 不利于产品的小型化设计； 其二， 内部电路板采用底板出针的方式， 使内部电 路板与位于恒温槽下方的外部电路板电性连接， 该结构容易因装配加工过程时 的震荡， 而影响内部电路板与外部电路板的电连接性能， 或者由于震荡而使恒 温槽脱离外部电路板。
因此， 有必要提供一种高稳定度且轻薄的改进型恒温晶体振荡器来克服上 述缺陷。 发明内容
本发明的目的在于提供一种高稳定度且轻薄的恒温晶体振荡器。
为了实现上述目的， 本发明提供一种恒温晶体振荡器， 包括恒温槽、 内部电 路板、 外部电路板、 加热元件和温度传感器， 所述内部电路板设置于所述恒温 槽中且通过引针与所述外部电路板电连接， 所述内部电路板包括晶体振荡电路， 所述外部电路板包括控温电路和与所述控温电路电连接的供电电路， 所述加热 元件和所述温度传感器均与所述外部电路板电连接， 其特征在于： 所述外部电 路板开设有通槽， 所述恒温槽安装于所述通槽中。
与现有技术相比，本发明恒温晶体振荡器的外部电路板开设有通槽，将恒温 槽安装于外部电路板的通槽中， 该结构大大降低了恒温晶体振荡器的整体高度， 顺应当今电子产品的小型化趋势， 有利于客户端产品的小型化设计； 并且， 由 于开了通孔， 合理且巧妙地利用了外部电路板上的布局结构， 精简了电路板， 降低了恒温晶体振荡器的整体重量。 此外， 该结构设置因外部电路板对恒温槽 的限位作用， 使得恒温槽牢靠地固定在外部电路板上， 进而提高了外部电路板 与内部电路板的电连接性能， 提高恒温晶体振荡器的稳定度。
较佳地，所述引针从所述恒温槽的侧壁穿出且以与所述外部电路板平行的方 向延伸。 由于所述引针设置沿与所述外部电路板平行的方向延伸， 在实现内部 电路板与外部电路板的电连接的基础上， 增强了恒温晶体振荡器整体的电连接 性能。
较佳地， 所述加热元件固定连接于所述恒温槽的侧壁外表面。 所述加热元件 用于对所述恒温槽的加热， 均衡所述恒温槽的槽内温度。
较佳地， 所述恒温槽的底部和侧壁的连接处向内凹陷形成凹陷部， 所述加热 元件安装于所述凹陷部。 将加热元件安装在凹陷部， 使加热元件的位置设置得 更合理， 不仅合理安排了恒温晶体振荡器的空间排布， 且更加有效地改善恒温 槽内的温度梯度。
较佳地， 所述温度传感器固定连接于所述恒温槽的侧壁外表面。 所述温度传 感器对恒温槽的温度进行检测与反馈， 使恒温槽内的温度均衡， 降低恒温槽温 度受外界的影响程度。
较佳地， 所述恒温晶体振荡器还包括铜管， 所述铜管固定连接于所述恒温 槽的侧壁外表面， 所述温度传感器设置于所述铜管内。
通过以下的描述并结合附图， 本发明将变得更加清晰， 这些附图用于解释 本发明的实施例。 附图说明 图 1为本发明恒温晶体振荡器第一个实施例的结构示意图。
图 2为图 1所示恒温晶体振荡器的分解图。
图 3图 1所示恒温晶体振荡器中外部电路板的结构示意图。
图 4为本发明恒温晶体振荡器第二个实施例的结构示意图。
图 5为图 4所示恒温晶体振荡器中恒温槽的结构示意图。 具本实施方式
现在参考附图描述本发明的实施例， 附图中类似的元件标号代表类似的元 件。 如上所述， 本发明提供了一种恒温晶体振荡器， 所述恒温晶体振荡器具有 高稳定度， 且轻薄的优点。
图 1所示为本发明恒温晶体振荡器第一个实施例的结构示意图。参考图 1-3 , 恒温晶体振荡器 1 包括恒温槽 11、 内部电路板 12、 外部电路板 13、 加热元件 14和温度传感器 15, 所述内部电路板 12包括由石英晶体 121和振荡元件 122 所组成的晶体振荡电路， 所述内部电路板 12 固定地安装在所述恒温槽 11 中。 所述外部电路板 13包括控温电路 (图未示）和与所述控温电路电连接的供电电 路（图未示；)， 所述加热元件 14和所述温度传感器 15均与所述外部电路板 13 电性连接。
具体地， 参考图 1-3 , 所述外部电路板 13开设有通槽 131 , 所述通槽 131贯 穿所述外部电路板 13 , 所述恒温槽 11安装于所述通槽 131中。 在本实施例中， 所述恒温槽 11穿过所述通槽 131， 并与所述外部电路板 13固定连接； 详细地， 所述恒温槽 11的侧壁外表面 1111通过粘结剂粘接在所述外部电路板 13的侧壁 内表面 132上。 所述外部电路板 13 固定连接所述恒温槽 11的中部， 将所述恒 温槽 11分隔成两部分： 位于所述外部电路板 13上方的恒温槽上部 112, 以及位 于所述外部电路板 13下方的恒温槽下部 113。 所述恒温晶体振荡器 1还包括侧 针 121 , 所述侧针 121为导体， 所述侧针 121的一端与所述内部电路板 12电连 接， 并固定于所述内部电路板 12的侧边； 所述引针 121的另一端从所述恒温槽 11的侧壁 111穿出， 并且所述引针 121以与所述外部电路板 13平行的方向延伸 至外部电路板 13 , 所述外部电路板 13通过所述侧针 121与所述内部电路板 12 电连接。 本发明恒温晶体振荡器 1通过将恒温槽 11穿过外部电路板 13的通槽 131设置， 从而降低了恒温晶体振荡器 1的整体高度， 减轻了恒温晶体振荡器 1 的重量； 并且， 通过内部电路板 12侧边出针的方式与将内部电路板 12与外部 电路板 13电连接， 提高了恒温晶体振荡器 1的电连接性能， 从而提高恒温晶体 振荡器 1输出频率的稳定度。
具体地， 参考图 1-2, 所述恒温槽 11的底面 114和侧壁 111的连接处向内凹 陷形成凹陷部 115， 所述凹陷部 115位于所述恒温槽下部 113， 在本实施例中， 所述恒温槽 11的底部 114呈四边形， 所述凹陷部 115为四个， 分別位于所述恒 温槽下部 113的四个角。 所述加热元件 14为加热管， 所述加热元件 14也为四 个， 分别位于四个所述凹陷部 115中， 详细地， 所述加热元件 14通过焊接方式 安装在所述凹陷部 115 中。 四个所述加热元件 14均与所述外部电路板 13 电性 连接。 所述加热元件 14的排布设置使对所述恒温槽 11 的加热更加均匀， 有效 地改善恒温槽 11内部的温度梯度， 进而提高恒温晶体振荡器 1输出频率的稳定 度， 提高恒温晶体振荡器 1的工作效率。
具体地， 如图 1所示， 所述温度传感器 15通过焊接的方式固定连接在所述 恒温槽腔体 11的侧壁外表面 1111上， 祥细地， 所述温度传感器 15固定连接在 所述恒温槽下部 113。所述温度传感器 15与外部电路板 13中的控温电路电连接， 所述温度传感器 15对恒温槽 11的温度进行检测与反馈， 所述温度传感器 15通 过所述控温电路， 控制恒温槽 11上的加热元件 14对恒温槽 11的加热程度， 保 持恒温槽 11内的温度均衡， 减少外界温度对所述恒温槽 11的影响。
需要说明的是，上述实施例中恒温晶体振荡器的加热元件的个数并不局限于 四个， 视具体情况而设计， 上述实施例中的凹槽根据加热元件的个数而做相应 的调整设计。
图 4所示为本发明恒温晶体振荡器第二个实施例的结构示意图。参考图 4 - 5 , 恒温晶体振荡器 2包括恒温槽 21、 内部电路板 (图未示）、 外部电路板 23、 加热元件 24和温度传感器（图未示）， 加热元件 24和温度传感器均与所述外部 电路板 23 电连接， 所述内部电路板固定地安装在所述恒温槽 21 中。 所述内部 电路板通过穿过恒温槽 21的侧针 221， 与所述外部电路板 23电连接。 与本发明 第一个实施例恒温晶体振荡器 1不同的是： 恒温晶体振荡器 2没有凹陷部 115; 恒温晶体振荡器 2还包括铜管 26， 以及加热元件 24固定连接恒温槽 21的侧壁 外表面 2111。 具体地， 所述铜管 26通过焊接的方式固定连接在恒温槽 21的侧 壁外表面 2111上， 且所述铜管 26 固定连接在恒温槽上部 212上； 所述温度传 感器设置在所述铜管 26的内部。 详细地， 所述加热元件 24通过焊接的方式固 定连接在恒温槽 21的侧壁外表面 2111上。
需要说明的是，本发明恒温晶体振荡器中的温度传感器并不局限于上述实施 例中的设计方式， 铜管的添加与否视具体情况而定。 另外， 所述恒温槽与所述 外部电路板的连接方式也不局限于使用粘结剂， 也可使用焊接或者卡扣等方式 来连接恒温槽与外部电路板。
以上结合最佳实施例对本发明进行了描述， 但本发明并不局限于以上揭示 的实施例， 而应当涵盖各种根据本发明的本质进行的修改、 等效组合。

Claims

权 利 要 求
1. 一种恒温晶体振荡器， 包括恒温槽、 内部电路板、 外部电路板、 加热元 件和温度传感器， 所述内部电路板设置于所述恒温槽中且通过引针与所述外部 电路板电连接， 所述内部电路板包括晶体振荡电路， 所述外部电路板包括控温 电路和与所述控温电路电连接的供电电路， 所述加热元件和所述温度传感器均 与所述外部电路板电连接， 其特征在于： 所述外部电路板开设有通槽， 所述恒 温槽安装于所述通槽中。
2. 如权利要求 1 所述的恒温晶体振荡器， 其特征在于： 所述引针从所述恒 温槽的侧壁穿出且以与所述外部电路板平行的方向延伸。
3. 如权利要求 1 所述的恒温晶体振荡器， 其特征在于： 所述加热元件固定 连接于所述恒温槽的侧壁外表面。
4. 如权利要求 3所述的恒温晶体振荡器， 其特征在于： 所述恒温槽的底部 和侧壁的连接处向内凹陷形成凹陷部， 所述加热元件安装于所述凹陷部。
5. 如权利要求 1 所述的恒温晶体振荡器， 其特征在于： 所述温度传感器固 定连接于所述恒温槽的侧壁外表面。
6. 如权利要求 1所述的恒温晶体振荡器， 其特征在于： 还包括铜管， 所述 铜管固定连接于所述恒温槽的侧壁外表面， 所述温度传感器设置于所述铜管内。
PCT/CN2009/074613 2009-09-02 2009-10-26 恒温晶体振荡器 WO2011026276A1 (zh)

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