1. Technical Field
The present invention relates to a resonation device, and an electronic apparatus and a moving object each equipped with a resonation device.
2. Related Art
Since quartz crystal oscillators vary in frequency with a variation in temperature, there are used constant-temperature quartz crystal oscillators in which the temperature of the quartz crystal resonator is maintained at a constant level by heating the quartz crystal resonator using a heating element such as a heater. In such a constant-temperature crystal oscillator, if the quartz crystal resonator is directly mounted on a substrate constituting a part of a thermostatic chamber, the heat of the quartz crystal resonator and the heating element is released to the substrate. Therefore, it becomes difficult to keep the temperature of the quartz crystal resonator constant. Further, if it is attempted to keep the temperature of the quartz crystal resonator constant, a larger amount of power must be supplied to the heating element, and therefore, there is a problem that the power consumption increases.
In order to solve the problem described above, in JP-A-2007-6270 (Document 1), there is disclosed a structure in which a gap is disposed between the substrate and the quartz crystal resonator in connecting/fixing the quartz crystal resonator provided with the heating element and the substrate to each other with a lead wire.
In such a configuration according to Document 1, the gap is disposed between the substrate and the quartz crystal resonator to thereby inhibit the heat of the quartz crystal resonator from being released to the substrate. However, since the lead wire performs both of the electrical connection and the mechanical fixation between the quartz crystal resonator and the substrate, the connection between the quartz crystal resonator and the substrate is achieved by the plate-like lead wire having mechanical strength and silver solder. Since the lead wire and the silver solder are high in thermal conductivity, the heat is released from the quartz crystal resonator to the substrate via the lead wire. Therefore, since the heat is easily released from the quartz crystal resonator, the power consumption increases, and it is difficult to reduce the power consumption.