CN100580584C - Portable clock and electronic device - Google Patents
Portable clock and electronic device Download PDFInfo
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- CN100580584C CN100580584C CN200680026321A CN200680026321A CN100580584C CN 100580584 C CN100580584 C CN 100580584C CN 200680026321 A CN200680026321 A CN 200680026321A CN 200680026321 A CN200680026321 A CN 200680026321A CN 100580584 C CN100580584 C CN 100580584C
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Abstract
The invention relates to a portable timepiece, comprising: an atomic oscillator (13) for generating and outputting a reference clock signal; and a timepiece module (12) which operates according to the reference clock signal, wherein the atomic oscillator (13) and the timepiece module (12) are arranged separately so as to be thermally separated. Moreover, the portable timepiece comprises: a crystal oscillator for generating and outputting a first oscillation signal; an atomic oscillator for generating and outputting a second oscillation signal with a higher precision than the first oscillation signal; a timepiece module which operates according to the first oscillation signal and the second oscillation signal; and a thermal separator for thermally separating for the atomic oscillator, the crystal oscillator (11) and the timepiece module (12). Thereout, a portable timepiece and electronic device can be arranged to reduce the effects of heat generation and power consumption when using the atomic oscillator as a reference oscillator.
Description
Technical field
The present invention relates to portable clock and the electronic equipment that to carry, particularly have the wrist-watch and the electronic equipment of the atomic oscillator that generates reference clock signal.
Background technology
In the electronic watch as electronic equipment, following electronic watch is arranged: it carries out frequency division to the reference clock signal from reference oscillator output and generates for example signal of 1Hz, comes the time is carried out timing according to this 1Hz signal.In this electronic watch, be known in the compensation quartz (controlled) oscillator (Temperature Compensated Crystal Oscillator) of serviceability temperature in the reference oscillator and realized year travel-time difference at ± tens seconds with interior year difference clock and watch (for example with reference to the special fair 6-31731 communique of Japan).
And, a kind of standard oscillator that uses atomic oscillator (for example with reference to No. the 6806784th, United States Patent (USP), No. the 6265945th, United States Patent (USP)) is proposed in recent years.
But, when using atomic oscillator in will reference oscillator at electronic watch, if adopt the structure identical with the clock and watch that used quartz (controlled) oscillator in the past, then (for example result from the heat, the heating of laser diode etc. of well heater of temperature of holding chamber (cell) because the heat of atomic oscillator, be about 85 ℃), therefore produce driving body such as gear mechanism material, be used for the problem that the battery that drives their lubricating oil smoothly and electric power is provided etc. is adversely affected owing to this temperature rise.
Specifically, because from the heat of atomic oscillator, produce the key element (lubricating oil, oscillatory circuit, driving circuit, battery etc.) that constitutes clock and watch driving bodies (movement) and be subjected to dysgenic possibilities such as distortion, rotten, deterioration in characteristics.
And, follow heating to make power consumption increase, the result produces the problem that power consumption increases.
Summary of the invention
The objective of the invention is to, even provide a kind of when in reference oscillator, having used atomic oscillator, also can reduce its heat influence, and can realize portable clock or the electronic equipment that power consumption reduces, a kind of portable clock that constitutes wrist-watch is provided especially.
In order to address the above problem, portable clock is characterised in that it has: generate the also atomic oscillator of output reference clock signal; The clock module that moves according to described reference clock signal; And described atomic oscillator implemented the heat separated part that heat separates with described clock module.
According to said structure, atomic oscillator realizes that by the heat separated part heat separates with clock module, even so more small-sized portable clock, clock module also can not be subjected to the heat effects of atomic oscillator, can suppress to produce the precision reduction of mechanical part and the deterioration of lubricating oil etc.
In this case, preferably have watchcase, described atomic oscillator is configured in the described watchcase, and disposes either party in air layer or the heat-barrier material at least as described heat separated part between described atomic oscillator and described clock module.
In addition, preferred described atomic oscillator is located with respect to described clock module, and becomes one with this clock module.
In addition, preferred described watchcase has the module incorporating section of taking in described clock module, and described atomic oscillator be configured in described module incorporating section around.
In addition, preferred this portable clock has the center that is formed by heat-barrier material, and this center is configured in the described watchcase, supports described clock module, and bring into play the effect of described heat separated part, the described clock module that is supported by described center is taken in described module incorporating section.
In addition, preferred described atomic oscillator is configured to separate on three dimensions with described clock module.
In addition, preferred described clock module and described atomic oscillator are configured to, and described clock module and described atomic oscillator are not overlapped the orthogonal projection of predetermined plane.
In addition, preferred described watchcase has bonnet, and described atomic oscillator is supported by described bonnet.
In addition, preferred described portable clock constitutes the wrist-watch with watchband, and this watchband is used for this portable clock is worn on wrist.
In addition, preferred described atomic oscillator is supported by described watchband.
In addition, preferably this portable clock has the dial plate that the demonstration time uses, and described atomic oscillator is bearing on the described dial plate.
In addition, preferred described atomic oscillator has: the chamber of having enclosed atom; Heat the well heater of described chamber; Control device, it is for described chamber, and the frequency that becomes the energy level and the energy difference between the ground state level of foment with reference to being equivalent to follow the excitation of described atom is controlled described well heater, so that described chamber remains on predetermined temperature.
In addition, preferably in above-mentioned each structure,, use its thermal resistance to have necessary to stop fully the material of value that passes to the heat of clock module from the atomic oscillator side as the material of the signal wire that will be electrically connected between atomic oscillator and the clock module.
In addition, electronic equipment is characterised in that it has: generate the also atomic oscillator of output reference clock signal; The action module of moving according to described reference clock signal; And described atomic oscillator implemented the heat separated part that heat separates with described action module.
According to said structure, atomic oscillator realizes that by the heat separated part heat separates with action module, even so more small-sized electronic equipment, action module also can not be subjected to the heat effects of atomic oscillator, can suppress to produce the precision reduction of mechanical part and the deterioration of lubricating oil etc.
In this case, preferably have housing, described atomic oscillator is configured on the described housing, and disposes the either party at least in air layer or the heat-barrier material between described atomic oscillator and described action module, as described heat separated part.
In addition, electronic equipment is characterised in that to have: the quartz (controlled) oscillator that generates and export the 1st oscillator signal; Generate the atomic oscillator of the 2nd oscillator signal that also output accuracy is higher than the 1st oscillator signal; The action module of moving according to described the 1st oscillator signal and described the 2nd oscillator signal; And described atomic oscillator, described quartz (controlled) oscillator and described action module implemented the heat separated part that heat separates.
According to said structure, atomic oscillator, quartz (controlled) oscillator and action module realize that by the heat separated part heat separates, so quartz (controlled) oscillator and action module can not be subjected to the warming-up effect of atomic oscillator, can keep normal operating state for a long time.
When this situation, preferred quartz (controlled) oscillator and action module are configured to one.
In addition, preferred described atomic oscillator and described action module are configured to one.
In addition, preferred described heat separated part comprises at least one side in air layer or the heat-barrier material.
In addition, preferably have housing, this housing has the module incorporating section of taking in described action module, described atomic oscillator be configured in described housing the module incorporating section around.
In addition, preferably have the center that is formed by heat-barrier material, it supports described action module, and the described action module that is bearing on the described center is taken in described module incorporating section.
In addition, preferred described atomic oscillator is configured on three dimensions with described action module and separates.
In addition, preferred described action module and described atomic oscillator are configured to described action module and described atomic oscillator are not overlapped the orthogonal projection of predetermined plane.
In addition, preferred described electronic equipment constitutes time set, and described action module comprises the clock and watch driving circuit.
In addition, preferably this electronic equipment constitutes wrist-watch, has described wrist-watch is worn on watchband on the human body, and described atomic oscillator is bearing on the described watchband.
In addition, preferably this electronic equipment constitutes wrist-watch, and described atomic oscillator is bearing in and is used for described wrist-watch is worn on watchband on the human body.
In addition, preferably have the dial plate that the demonstration time uses, described atomic oscillator is bearing on the described dial plate.
In addition, preferred described atomic oscillator has: the chamber of having enclosed atom; Heat the well heater of described chamber; And control device, it is at described chamber, and the frequency that becomes the energy level and the energy difference between the ground state level of foment with reference to being equivalent to follow the excitation of described atom is controlled described well heater, makes described chamber keep predetermined temperature.
According to the present invention,, also can constitute the portable clock or the electronic equipment that reduce its heat effects, and can reduce power consumption even when on portable clock or electronic equipment, using atomic oscillator as reference oscillator.
Description of drawings
Fig. 1 is the block scheme of summary structure of the clock and watch of expression embodiment.
Fig. 2 is the key diagram of the component installation state when face side is observed the clock and watch of the 1st embodiment.
Fig. 3 is the major part sectional view of the clock and watch of the 1st embodiment.
Fig. 4 is the key diagram of stationary state of the atomic oscillator of the 1st embodiment.
Fig. 5 is the key diagram of the insulation part of atomic oscillator and the 1st embodiment.
Fig. 6 is the key diagram of the component installation state when face side is observed the clock and watch of the 2nd embodiment.
Fig. 7 is the major part sectional view of the clock and watch of the 2nd embodiment.
Fig. 8 is the key diagram of the 3rd embodiment.
Fig. 9 is the key diagram of the component installation state when face side is observed the clock and watch of the 4th embodiment.
Figure 10 is the major part sectional view of the clock and watch of the 4th embodiment.
Figure 11 is the key diagram of the 5th embodiment.
Figure 12 is the planimetric map of the clock and watch of the 6th embodiment.
Figure 13 is the key diagram of the 1st form of the 6th embodiment.
Figure 14 is the key diagram of the 2nd form of the 6th embodiment.
Figure 15 is the key diagram of the 7th embodiment.
Figure 16 is the key diagram of the 8th embodiment.
Figure 17 is the block scheme of summary structure of the clock and watch of expression the 9th embodiment.
Figure 18 is to be the action flow chart at center with the oscillation action.
Figure 19 is the key diagram of the 1st variation.
Figure 20 is the key diagram of the 2nd variation.
Label declaration
10 wrist-watches (electronic watch); 11 pointer portions; 12 clock modules; 13 atomic oscillators; 14 quartz (controlled) oscillators; 15 frequency dividing circuits; 16 clock and watch driving circuits; 17 motor; 18 trains; 19 comparator circuits, 21 watchcases; 50 heat-barrier materials
Embodiment
Below, with reference to description of drawings preferred implementation of the present invention.
[1] the 1st embodiment
Fig. 1 is the block scheme of summary structure of the clock and watch of expression embodiment.
Roughly be divided into as the wrist-watch (electronic watch) 10 of portable clock and comprise: pointer portion 11 with a plurality of pointers that carry out time showing; Clock module 12 as the action module that drives pointer portion 11 according to reference clock signal CLK0; And the atomic oscillator 13 of generation and output reference clock signal clk 0.
In this case, clock module 12 is configured to separate on three dimensions with atomic oscillator 13, more specifically, is configured to and makes clock module 12 orthogonal projection on predetermined plane (plane parallel with display surface) does not overlap with atomic oscillator 13.
In addition, clock module 12 has: frequency dividing circuit 15, and it carries out frequency division to reference clock signal CLK0, generates and the output action clock signal clk; Clock and watch driving circuit 16, it drives time movement according to Action clock signal CLK; Motor 17, it constitutes time movement, by 16 controls of clock and watch driving circuit; And train 18, it transmits the driving force of motor 17.
Fig. 2 is the key diagram of the component installation state when face side is observed the clock and watch of the 1st embodiment.
Fig. 3 is the major part sectional view of the clock and watch of the 1st embodiment.
Fig. 4 is the key diagram of stationary state of the atomic oscillator of the 1st embodiment.
Clock and watch 10 have watchcase 21.This watchcase 21 is formed by metal (titanium, stainless steel, aluminium etc.) or resin.
Around near the atomic oscillator of being taken in the circumference of watchcase 21 13 all or part of is made of the heat-barrier material 50 of bringing into play the effect of heat separated part.In the 1st embodiment, as shown in Figure 3, all covered around the atomic oscillator 13 by heat-barrier material 50.At this,, can enumerate resins such as propylene, tygon, polystyrene about the material of employed heat-barrier material 50.
And the atomic oscillator 13 that is covered by heat-barrier material 50 also is accommodated among the metal atomic oscillator housing 13A on every side.At this, as atomic oscillator housing 13A, using metal atomic oscillator housing 13A is for diamagnetic.By using this metal atomic oscillator housing 13A, can be with atomic oscillator 13 and motor 17 close configurations.Therefore, the layout restriction when atomic oscillator 13 being configured in the watchcase 21 of electronic watch reduces, and can realize slimming, the miniaturization of clock and watch.In addition, atomic oscillator housing 13A also can pass through coated ceramic, resin etc. and form heat insulation structural.
In addition, can also implement ceramic coated, resin-coating etc., form heat insulation structural by atomic oscillator periphery at watchcase 21.
In addition, take in center 22 that form by heat-barrier material, the effect of performance heat separated part at the middle body of watchcase 21.
In this center 22, take in clock and watch IC24, motor 17 and the train 18 of the effect of battery 23, the atomic oscillator 13 as power supply, the frequency dividing circuit 15 that constitutes clock module 12 and performance clock and watch driving circuit 16.
In this case, atomic oscillator 13 is configured in interior all sides of the center 22 that is made of heat-barrier material.By atomic oscillator 13 being configured in interior all sides of center 22, when the outside of watchcase 21 produces temperature variation, can relax this temperature variation, can reduce the deterioration in characteristics that atomic oscillator 13 causes because of temperature variation.
As the material of the heat-barrier material that constitutes center 22, can enumerate resins such as propylene, tygon, polystyrene, pottery, glass and lead glass etc.
And, in this 1st embodiment, clock module 12 be "
" shape, the atomic oscillator housing 13A that accommodates atomic oscillator 13 is configured on the sunk part of clock module 12.
And, extend to form support 13A1 from the left and right directions of an end among Fig. 2 of atomic oscillator housing 13A, as shown in Figure 4, by screw SC is screwed on base plate BP, be electrically connected with the circuit substrate 13B of the wiring that is formed with atomic oscillator 13 by the substrate 12A1 of pressing plate FP and base plate BP clamping wiring that, that be formed with clock module 12.
In this clock module 12, the rotor 17A of motor 17 described later and 51 engagements of No. 5 gears, the pinion wheel 51A engagement of No. 4 gears 52 and these No. 5 gears 51.
The second hand that constitutes pointer portion 11 is installed on the turning axle of these No. 4 gears 52, follows the rotation of No. 4 gears 52, second hand is driven.
About support 13A1, be not limited to be formed on left and right directions, as long as can utilize support positioning and fixing more than 1 on clock module 12.In addition, also can not use screw SC, and utilize known positioning and fixing means to position fixing.
And, the pinion wheel 52A engagement of No. 3 gears 53 and No. 4 gears 52, the pinion wheel 53A engagement of No. 2 gears 54 and No. 3 gears 53.The minute hand that constitutes pointer portion 11 is installed on the turning axle of these No. 2 gears 54, follows the rotation of No. 2 gears 54, minute hand is driven.And, minute wheel (Ri Li Trucks) and the pinion wheel 54A engagement of 55 and No. 2 gears 54.The turning axle engagement of not shown cylinder gear (tube Trucks) and minute wheel, by the rotation of this cylinder gear, the hour hands that are installed in the formation pointer portion 11 on the turning axle of cylinder gear are driven.
In addition, minute wheel 55 and minute hand breast wheel (Ri Li Zhong Inter Trucks) 56 engagements.This minute hand breast wheel 56 is connected 58 with table via time adjustment train 57.
That is, atomic oscillator 13 need be implemented in separating of heat aspect with clock module 12 based on following reason.
(1) atomic oscillator need heat as required and keep predetermined temperature, prevents that heat from diffusing to clock module or space outerpace, and preventing increases because of the power consumption that the needs heating causes
(2) prevent to constitute the distortion of materials of the structure member, gear etc. of clock module/rotten
(3) prevent to be coated in deterioration of lubricant on gear etc.
(4) prevent deterioration of battery
(5) prevent that circuit is out of shape/goes bad
When this situation, when the thermal conductivity of the material that connects atomic oscillator 13 and clock module 12 is made as λ, sectional area is made as A, when between the two distance was made as x, thermal resistance R between the two utilized following formula to represent.
R＝x/(λ·A)
Therefore, for atomic oscillator 13 is implemented separating of heat aspect with clock module 12, as long as increase thermal resistance R, so when connecting both, preferably increase apart from x, reduce thermal conductivity λ, reduce sectional area A.
But the signal wire that is provided with in order to carry out signal exchange between atomic oscillator 13 and clock module 12 need carry out the transmission of tiny signal, therefore can not excessively increase apart from x, so that can not pick up unnecessary noise.
Therefore, in the present embodiment, the atomic oscillator housing 13A that has accommodated atomic oscillator 13 is configured on the sunk part of action module, with the separation on this implementation space, thereby reduces available heat conductance λ, increases thermal resistance R.
Fig. 5 is the key diagram of the insulation part of atomic oscillator and the 1st embodiment.
The atomic oscillator unit 31 of constituting atom oscillator 13 mainly has: the chamber 41 of having enclosed alkaline metal (caesium); Penetrate the laser diode 42 of excitation to chamber 41 with laser; The well heater 43 that chamber 41 is heated; The photodiode 44 of sensitization 41 light that penetrate from the chamber; Measure the laser temperature sensor 45 of the temperature of laser diode 42; And the room temperature sensor 46 of the temperature of measuring cell 41.
At this, at chamber 41, control circuit portion 33 comes control heater 43 with reference to frequency, makes chamber 41 remain on predetermined temperature, wherein, and this frequency and suitable with the energy difference between the ground state level with the energy level of the corresponding foment of excitation of caesium atom.More specifically, it is consistent with the proper vibration number of caesium atom that laser diode 42 is modulated the difference on the frequency of the upside sideband (sideband) that makes its output and downside sideband, make the transmission laser light quantity in the chamber 41 when the proper vibration number of the difference on the frequency of upside sideband and downside sideband and caesium atom is consistent, reach maximum, thereby make photodiode 44 be output as maximum by the modulating frequency of regulating laser diode, modulating frequency is that benchmark is stabilized with the natural frequency of caesium atom.As a result, reference clock signal CLK0 is that benchmark is stabilized with the natural frequency of caesium atom also.
In this case, adopt atomic oscillator 13 integral body (in Fig. 5, utilizing insulation part A0 to represent) by heat insulation structure.At this, insulation part A0 is made of heat-barrier material.
According to this structure, can make local oscillator 48 constant with the operating temperature maintenance of laser diode 42 with temperature characterisitic, therefore can all eliminate the output pulsation of reference clock signal CLK0.
Only narrated heat insulation structural in the above description, but in the reality from diamagnetic viewpoint, also to consider the shape and the configuration of atomic oscillator 13 and heat insulation structural thereof.
The following describes the action of embodiment.
Thus, clock and watch driving circuit 16 driving motors 17.
As a result, the rotor 17A of motor 17 drives No. 5 gear 51 rotations, by No. 4 gears 52 of pinion wheel 51A driving of No. 5 gears 51.And, follow the rotation of these No. 4 gears 52, second hand is driven.
In addition, by No. 3 gears 53 of pinion wheel 52A driving of No. 4 gears 52, by No. 2 gears 54 of pinion wheel 53A driving of these No. 3 gears 53.And, follow the rotation of these No. 2 gears 54, minute hand is driven.
As described above, according to this 1st embodiment, atomic oscillator 13 is configured at the state that separates aspect the heat with clock module 12, so it is rotten to realize preventing to constitute the distortion of materials such as structural member, gear of clock module 12, prevent to be coated in the deterioration of lubricant on gear etc., prevent battery 23 deteriorations, prevent that circuit is out of shape/goes bad.Therefore, can prevent to result from that these are out of shape the reduction of rotten time showing precision, and generate the Action clock signal CLK of the reference clock signal CLK0 of the superhigh precision that generates based on atomic oscillator 13, so can further realize the high precision int of time showing precision.Therefore, can constitute the railway station personnel of subway etc. of precision prescribed and the railway wrist-watch that train driver uses.
In addition, also can reduce the heating of following the well heater that is used to heat atomic oscillator 13 and the power consumption that causes, and then can reduce power consumption.
[2] the 2nd embodiments
The 1st above embodiment is taken in the interior all sides that are configured in center 22 with atomic oscillator 13, and this 2nd embodiment is that atomic oscillator 13 is configured in embodiment on the part of watchcase 21 of center 22 outer circumferential sides.
Fig. 6 is the key diagram of the component installation state when face side is observed the clock and watch of the 2nd embodiment.
Fig. 7 is the major part sectional view of the clock and watch of the 2nd embodiment.
Clock and watch 10 have watchcase 21.This watchcase 21 is formed by metal (titanium, stainless steel, aluminium etc.) or resin.
All or part of utilizes the heat-barrier material 50 of performance heat separated part effect to constitute around near the atomic oscillator of taking in the circumference of watchcase 21 13, and employed heat-barrier material is resins such as propylene, tygon, polystyrene.In addition, also can implement ceramic coated, resin-coating etc., form heat insulation structural by atomic oscillator periphery at watchcase 21.
And, take in center 22 that form by heat-barrier material, the effect of performance heat separated part at the middle body of watchcase 21.
In this center 22, take in clock and watch IC24, motor 17 and the train 18 of the effect of the battery 23 as power supply, the frequency dividing circuit 15 that constitutes clock module 12 (action module) and performance clock and watch driving circuit 16.
The rotor 17A of motor 17 and 51 engagements of No. 5 gears, the pinion wheel 51A engagement of No. 4 gears 52 and these No. 5 gears 51.
The second hand that constitutes pointer portion 11 is installed on the turning axle of these No. 4 gears 52, follows the rotation of No. 4 gears 52, second hand is driven.
And, the pinion wheel 52A engagement of No. 3 gears 53 and No. 4 gears 52, the pinion wheel 53A engagement of No. 2 gears 54 and No. 3 gears 53.The minute hand that constitutes pointer portion 11 is installed on the turning axle of these No. 2 gears 54, follows the rotation of No. 2 gears 54, minute hand is driven.And, the pinion wheel 54A engagement of minute wheel 55 and No. 2 gears 54.The engagement of not shown cylinder gear and the turning axle of minute wheel, by the rotation of this cylinder gear, the hour hands that are installed in the formation pointer portion 11 on the turning axle of cylinder gear are driven.
In addition, minute wheel 55 and 56 engagements of minute hand breast wheel.This minute hand breast wheel 56 is connected 58 with table by time adjustment train 57.
In watchcase 21, be built-in with across center 22 and become the atomic oscillator 13 of heat released state with clock module 12.This atomic oscillator 13 mainly has atomic oscillator unit 31 and control circuit portion 33, and this control circuit portion 33 is electrically connected with clock module 12 by flexible substrate 34.
At this, atomic oscillator 13 and clock module 12 are considered reason (1)～(4) that above-mentioned enforcement heat separates and the relation of thermal resistance R, in this 2nd embodiment, used the flexible substrate 34 that can reduce thermal conductivity λ and can constitute less sectional area A.
By atomic oscillator 13 being configured in the outer circumferential side of center 22, can realize having utilized the commodity of existing clock module to expand.That is, for example by change circuit substrate and clock and watch IC in existing clock module, and atomic oscillator 13 is connected with clock module behind these change parts, thereby can realizes utilizing the commodity expansion that has watch and clock movement.As a result, can realize commercialization with low cost.
[3] the 3rd embodiments
Fig. 8 is the key diagram of the 3rd embodiment.
The 2nd above embodiment has adopted atomic oscillator 13 has been configured in structure on the part of watchcase 21, but, also can constitute atomic oscillator 13 (utilizing oblique line to represent among Fig. 8) is configured on the circumference of watchcase 21, and surround the movement M (=clock module 12B+ battery 23 etc.) of clock and watch.
[4] the 4th embodiments
Fig. 9 is the key diagram of the component installation state when face side is observed the clock and watch of the 4th embodiment.
Figure 10 is the major part sectional view of the clock and watch of the 4th embodiment.
Above the 1st embodiment and the 2nd embodiment are configured in atomic oscillator 13 on the part of watchcase 21, and this 4th embodiment is that atomic oscillator 13 is accommodated in embodiment in the center 22.
In this case, center 22 is formed by heat-barrier material, and atomic oscillator 13 is covered by heat-barrier material.
About the material of heat-barrier material, can enumerate resins such as propylene, tygon, polystyrene, pottery, soda-lime glass, lead glass etc.
And atomic oscillator 13 also can be formed heat insulation structural by pottery, resin etc. are applied by metal shell covering, this metal shell.
[5] the 5th embodiments
Figure 11 is the key diagram of the 5th embodiment.
More than each embodiment be that atomic oscillator 13 is configured in arbitrary position around the movement M when overlooking, the 5th embodiment is with the embodiment of atomic oscillator 13 overlay configuration in movement M rear side.
And movement M is electrically connected by wind spring 62 with atomic oscillator 13, carries out the signal transmission.Especially when using wind spring 62, when the output frequency of change reference clock signal CLK0 carries out the commodity expansion, only the either party at least in the line footpath of need change wind spring 62, the number of turns, the external diameter need not change other structure members, can easily carry out best signal transmission.
By using this wind spring 62, can further increase between movement M and the atomic oscillator 13 apart from x.As a result, can increase thermal resistance R (with reference to the formula of aforementioned thermal resistance R), can reduce heat transmission, improve thermal insulation from atomic oscillator 13 to movement M.
And, also can replace this wind spring 62, and use conducting rubber to constitute.
As the material of heat-barrier material 61, can enumerate resins such as propylene, tygon, polystyrene, pottery, soda-lime glass, lead glass etc.
[6] the 6th embodiments
Figure 12 is the vertical view of the clock and watch of the 6th embodiment.
Figure 13 is the key diagram of the 1st form of the 6th embodiment.
Figure 14 is the key diagram of the 2nd form of the 6th embodiment.
The 5th above embodiment is the rear side of atomic oscillator 13 overlay configuration at movement M, and this 6th embodiment is that atomic oscillator 13 is configured in embodiment on the dial plate.
The heat-barrier material 80 that atomic oscillator 13 is used as insulating unit covers, and is configured on the 2nd heat-barrier material 81 as insulating unit of being located at dial plate 65 lower surfaces, thereby realizes separating with the heat of internal machine core M.In this case, as shown in figure 13, atomic oscillator 13 and heat-barrier material 80 are configured in dial plate 65 sides under the plane of the rotational trajectory that comprises minute hand Hm, and are configured in the outside of the front end rotational trajectory EH of hour hands Hh.In addition, atomic oscillator 13 inserts from the below with heat-barrier material 80 and is located at the hole of dial plate 65, and its upper surface is provided with from dial plate 65 is outstanding upward.
At this, about the structure of dial plate 65, can only utilize matrix material to constitute dial plate, the matrix material of pottery, resin that also can use upper surface, lower surface or coated on both sides at matrix material.
More than illustrated atomic oscillator 13 and heat-barrier material 80 have been located at the hole of dial plate 65 from the below insertion, and make its upper surface from the outstanding upward situation about being provided with of dial plate 65, but also can be as shown in figure 14, on dial plate 65, form the Visual Confirmation window 65W that is provided with the translucent material as crystalline ceramics, soda-lime glass, lead glass, thereunder dispose atomic oscillator 13 (and heat-barrier material 80), and make and to carry out Visual Confirmation across affirmation window 65W.Perhaps, described affirmation window 65W can be set also, be equal height and heat-barrier material 80 is constituted make the Visual Confirmation side surface of its upper surface and dial plate 65.In addition, can also be formed on the structure of configuration movement M between dial plate 65 and the 2nd heat-barrier material 81.
As mentioned above, according to this 6th embodiment, by being configured in atomic oscillator 13 on the dial plate 65 or being configured in across dial plate 65 identifiable positions, can be easy to from identifying in appearance of clock and watch thus is the clock and watch that atomic oscillator 13 has been installed, and can realize being rich in the commodity expansion of design variation.
[7] the 7th embodiments
Figure 15 is the key diagram of the 7th embodiment.
More than each embodiment be that atomic oscillator 13 is configured in the watchcase 21, this 7th embodiment is that it is accommodated in embodiment in the watchband.
In this case, watchband 67 is made of heat-barrier material, and perhaps atomic oscillator 13 is covered by heat-barrier material.
When constituting watchband 67, can utilize formations such as resins such as propylene, tygon, polystyrene, rubber by heat-barrier material.
When utilizing metal to constitute watchband 67, also can by coated ceramic, resin etc. make atomic oscillator 13 around form heat insulation structural.
In this case, atomic oscillator 13 and comprise that the distance between the movement M of clock module is far away, so signal wire is elongated, pick-up noise etc. has the amplifier that signal amplifies usefulness in the therefore preferred atomic oscillator 13 easily.
By atomic oscillator 13 is configured in the watchband 67, slimming, the miniaturization of the clock and watch of atomic oscillator 13 can have easily been realized installing.In addition, as hereinbefore, realize utilizing the commodity of existing watch and clock movement to expand easily.
[8] the 8th embodiments
Figure 16 is the key diagram of the 8th embodiment.
More than each embodiment be that example is illustrated with the wrist-watch, the 8th embodiment is the embodiment that constitutes clock and watch.
In Figure 16, give same numeral to the part identical with Fig. 5 with Fig. 1, Fig. 2.
Clock and watch (electronic watch) 70 constitute portable clock, mainly have: base 71; By founding clock module 12C and the pointer portion 11 that is located at the pillar 72 on the base 71 and is disposed at top; Be accommodated in the part of base 71, under the state that has been provided alternating current, alternating current be converted to galvanic AC/DC converter unit 73; The galvanic battery 74 that storage provides from AC/DC converter unit 73; And be installed in atomic oscillator 13 on the base 71.
In this case, atomic oscillator 13 is covered by heat-barrier material 75.
And the distance between atomic oscillator 13 and the clock module 12C is far away, so signal wire is elongated, and easy pick-up noise etc., therefore signalization is amplified the amplifier of usefulness in atomic oscillator 13.
About the action of clock and watch 70, identical with above-mentioned each embodiment, so omit its detailed description.
As described above, according to above-mentioned the 2nd～the 8th embodiment, atomic oscillator 13 and clock module (12,12B, 12C) are configured at the state that separates aspect the heat, go bad, prevent to be coated in deterioration of lubricant on the gear etc., prevent battery 23 deteriorations, prevent that the circuit distortion is rotten so can realize preventing constituting the material deformations such as structure member, gear of clock module (12,12B, 12C), can prevent to result from the reduction of the rotten time showing precision of these distortion thus.
In addition, also can reduce the power consumption of following heating to cause, and then can reduce power consumption.
[9] the 9th embodiments
Figure 17 is the block scheme of summary structure of the clock and watch of expression the 9th embodiment.In Figure 17, give same numeral to the part identical with the 1st embodiment shown in Figure 1.
Clock and watch (electronic watch) 10X constitutes wrist-watch, mainly has: as the clock module 12X of action module, it has the quartz (controlled) oscillator 14 that generates and export the 1st oscillator signal SX1; And atomic oscillator 13, it generates and the output accuracy 2nd oscillator signal SX2 higher than the 1st oscillator signal SX1.
In this case, identical with above-mentioned each embodiment, clock module 12X is configured on three dimensions with atomic oscillator 13 and separates, more specifically, be configured to clock module 12X is not overlapped with the orthogonal projection of atomic oscillator 13 relative predetermined planes (plane parallel with display surface).
In addition, clock module 12X has: above-mentioned quartz (controlled) oscillator 14; Frequency/phase comparator circuit 19, it carries out the 1st oscillator signal SX1 and the frequency of the 2nd oscillator signal SX2 that atomic oscillator 13 generates and the comparison of phase place of quartz (controlled) oscillator 14 generations; Frequency dividing circuit 15, it carries out frequency division according to the comparative result of frequency/phase comparator circuit 19 to the 1st oscillator signal SX1, generates and the output reference clock signal clk; Clock and watch driving circuit 16, it drives clockwork according to reference clock signal CLK; Motor 17, it constitutes time movement, by 16 controls of clock and watch driving circuit; Train 18 with the driving force of transmitting motor 17.
In this case, clock module 12X is except that having quartz (controlled) oscillator 14 and comparator circuit 19, and other structures are identical with the clock module 12 of the 1st embodiment.Therefore, describe with reference to Fig. 2～Fig. 5 below.
In this clock module 12X, the rotor 17A of aftermentioned motor 17 and 51 engagements of No. 5 gears, the pinion wheel 51A engagement of No. 4 gears 52 and these No. 5 gears 51.
The second hand that constitutes pointer portion 11 is installed on the turning axle of these No. 4 gears 52, follows the rotation of No. 4 gears 52, second hand is driven.
And, the pinion wheel 52A engagement of No. 3 gears 53 and No. 4 gears 52, the pinion wheel 53A engagement of No. 2 gears 54 and No. 3 gears 53.The minute hand that constitutes pointer portion 11 is installed on the turning axle of these No. 2 gears 54, follows the rotation of No. 2 gears 54, minute hand is driven.And, the pinion wheel 54A engagement of minute wheel 55 and No. 2 gears 54.The engagement of not shown cylinder gear and the turning axle of minute wheel, by the rotation of this cylinder gear, the hour hands that are installed in the formation pointer portion 11 on the turning axle of cylinder gear are driven.
In addition, minute wheel 55 and 56 engagements of minute hand breast wheel.This minute hand breast wheel 56 is connected 58 with table by time adjustment train 57.
In addition, on train 18, connecting have second hand, the pointer portion 11 of pointer such as minute hand, hour hands.
Quartz (controlled) oscillator 14 adopts the structure that makes the tuning fork-type quartz oscillator vibration, for example exports the 1st oscillator signal SX1 of 32.768kHz.
Below, the action of the 9th embodiment is described.
In the present embodiment, be prerequisite with small portable clock and watch such as wrist-watches, therefore, intermittently drive atomic oscillator 13 (driving every 3 hours in this embodiment) from reducing the viewpoint of power consumption.
Figure 18 is to be the action flow chart at center with the oscillation action.
After intermitten end last time, reset not shown counter, make its pick up counting (step S1), according to the count value of this counter, judge the driving stopping period (3 hours) (step S2) that whether passes through atomic oscillator 13.
And, in the judgement of step S2, in result of determination is (step S2 when still being in the driving stopping period of atomic oscillator 13, "No"), the correction data that frequency dividing circuit 15 bases were last time set not shown 1/2 frequency dividing circuit that has the data setting function (the perhaps predetermined correction data of basis when the first time), carry out the logic frequency modulation of the 1st oscillator signal SX1, the frequency of the 1st oscillator signal SX1 is carried out frequency division, to the clock signal clk of clock and watch driving circuit 16 output 1Hz.
Thus, clock and watch driving circuit 16 driving motors 17.
As a result, the rotor 17A of motor 17 drives No. 5 gear 51 rotations, by No. 4 gears 52 of pinion wheel 51A driving of No. 5 gears 51.And, follow the rotation of these No. 4 gears 52, second hand is driven.
In addition, by No. 3 gears 53 of pinion wheel 52A driving of No. 4 gears 52, by No. 2 gears 54 of pinion wheel 53A driving of these No. 3 gears 53.And, follow the rotation of these No. 2 gears 54, minute hand is driven.
And, be driven with the minute wheel 55 of the pinion wheel 54A of No. 2 gears 54 engagement, and then not shown cylinder gear being driven, hour hands are driven thus.
More than the result of Qu Donging shows the current time.
On the other hand, in the judgement of step S2, when being judged to be the driving stopping period that passes through atomic oscillator 13 (step S2, "Yes"), atomic oscillator 13 is provided electric power, makes atomic oscillator unit 31 begin action (step S3).
Then, from the beginning supply capability through the oscillation frequency that making atomic oscillator 13 become stablize required grace time after, frequency/phase comparator circuit 19 is measured difference on the frequency and the phase differential (step S4) of the 1st oscillator signal SX1 and the 2nd oscillator signal SX2, according to difference on the frequency and phase differential, to frequency dividing circuit 15 output calibration datas.
And correction data is exported to 1/2 frequency dividing circuit that has the data setting function of frequency dividing circuit 15, and store correction data.
Then, during atomic oscillator 13 provides electric power to rise through the driving of finishing the required abundance of above-mentioned processing, after (for example 10 seconds), cut off once more the electric power of atomic oscillator 13 is supplied with, make once more to handle to change step S1 (step S7) in beginning.Similarly repeat following processing later on: when the action of atomic oscillator 13 stops, according to the correction data (logic frequency modulation amount) that is stored in 1/2 frequency dividing circuit that has the data setting function, proofread and correct the phase pushing figure of the clock signal clk of 1Hz, and whenever the time through 3 hours, difference on the frequency and phase differential between the 1st oscillator signal SX1 that exports according to the 2nd oscillator signal SX2 of atomic oscillator 13 output and quartz (controlled) oscillator 14, upgrade correction data (logic frequency modulation amount), the phase pushing figure of position signal CLK.
Parallel therewith, frequency dividing circuit 15 carries out the logic frequency modulation of the 1st oscillator signal SX1 according to the correction data that resets, and the frequency of the 1st oscillator signal SX1 is carried out frequency division, to the clock signal clk of clock and watch driving circuit 16 output 1Hz.
Thus, clock and watch driving circuit 16 driving motors 17.
As a result, the rotor 17A of motor 17 drives No. 5 gear 51 rotations, by No. 4 gears 52 of pinion wheel 51A driving of No. 5 gears 51.And, follow the rotation of these No. 4 gears 52, second hand is driven.
In addition, by No. 3 gears 53 of pinion wheel 52A driving of No. 4 gears 52, by No. 2 gears 54 of pinion wheel 53A driving of these No. 3 gears 53.And, follow the rotation of these No. 2 gears 54, minute hand is driven.
As described above, according to this 9th embodiment, atomic oscillator 13 is configured at the state that separates aspect the heat with clock module 12X, so it is rotten to realize preventing to constitute the distortion of materials such as structure member, gear of clock module 12X, prevent to be coated in the deterioration of lubricant on gear etc., prevent battery 23 deteriorations, prevent that the circuit distortion is rotten.Therefore, can prevent to result from that these are out of shape the reduction of rotten time showing precision, and generate the clock signal clk of the reference clock signal (=be equivalent to oscillator signal SX2) of the superhigh precision that generates based on atomic oscillator 13, so can further realize the high precision int of time showing precision.Therefore, can constitute the railway station personnel of subway etc. of precision prescribed and the railway wrist-watch that train driver uses.
In addition, also can reduce the power consumption that the heating of following the well heater that is used to heat atomic oscillator 13 causes, and then can reduce power consumption.
The variation of this 9th embodiment below is described.
[9.1] the 1st variation
In the above description, show the frequency and the situation of bit comparison mutually between the 1st oscillator signal SX1 that carries out quartz (controlled) oscillator 11 output and the 2nd oscillator signal SX2 that atomic oscillator 13 is exported, but also can constitute under the 1st oscillator signal SX1 situation consistent, only phase place relatively with the frequency of the 2nd oscillator signal SX2.
In addition, the frequency ratio that also can carry out the 1st oscillator signal SX1 and the 2nd oscillator signal SX2 is a benchmark with the frequency of the 2nd oscillator signal SX2 of atomic oscillator 13 outputs, proofreaies and correct the oscillation frequency of the 1st oscillator signal SX1 of quartz (controlled) oscillator 11 outputs.
[9.2] the 2nd variation
In the above description, adopted the logic mode of frequency regulation, but also can constitute and with the volume-variable mode of logic mode of frequency regulation and quartz (controlled) oscillator as the correcting mode of reference clock signal CLK.During this situation, by and with logic mode of frequency regulation and volume-variable mode, thereby can enlarge the range of adjustment of reference clock signal CLK.In addition, be not limited in crystal oscillation circuit, be provided with the electric capacity that volume-variable is used, also the electric capacity that can use at crystal oscillation circuit outer setting volume-variable.
[9.3] the 3rd variation
In the above description, the driving stopping period that shows atomic oscillator 13 is set at 3 hours, and during driving, be set at 10 seconds situation, but be not limited thereto, also can be random time.
In addition, can also be not drive cycle intermittently be made as equal intervals, for example the drive cycle at intermittence can be made as unequal interval, for example will drive stopping period and be made as, make between daytime the time period lack (for example 2 hours), make the time period at night grow (for example 4 hours) etc.
[9.4] the 4th variation
In the above description, used the caesium atomic oscillator, but also can use atomic oscillator (for example rubidium atomic oscillator) in addition as atomic oscillator unit 31.In addition, quartz (controlled) oscillator 11 also can be any quartz (controlled) oscillators such as oscillator that use in clock and watch or the monthly error clock and watch etc. differing from year.
[10] effect of embodiment
According to above-mentioned each embodiment, when in portable clock or electronic equipment, using atomic oscillator, also can constitute the portable clock or the electronic equipment that reduce its heat effects as reference oscillator.
And, can reduce the power consumption of following heating to bring, the result can reduce power consumption.In addition, being applied to more small-sized and when portable clock that the layout degree of freedom is lower or electronic equipment, can constituting miniaturization commodity (portable clock or electronic equipment), say very useful from this point.
In addition, can reduce the power consumption of following heating to bring, the result can reduce power consumption.
[11] variation of embodiment
Above-mentioned embodiment is just represented a mode of the present invention after all, certainly distortion arbitrarily within the scope of the invention.
[11.1] the 1st variation
Figure 19 is the key diagram of the 1st variation.
In the above description, adopt atomic oscillator 13 by whole (in Fig. 5, utilizing insulation part A0 to represent) heat insulation structures, but also can constitute the structure that the chamber in the atomic oscillator 13 41, well heater 43, room temperature sensor 46, laser diode 42, photodiode 44 and laser temperature sensor 45 is heat insulation.That is, can constitute atomic oscillator unit 31 (in Figure 19, utilizing insulation part A1 to represent) heat insulation.Wherein, insulation part A1 is made of heat-barrier material.
According to said structure, the operating temperature with laser diode 42 of temperature characterisitic can be kept constant, so can all eliminate the output pulsation of reference clock signal CLK0.
[11.2] the 2nd variation
Figure 20 is the key diagram of the 2nd variation.
In the explanation of above-mentioned the 1st variation, adopt the structure that the chamber in the atomic oscillator 13 41, well heater 43, room temperature sensor 46, laser diode 42, photodiode 44 and laser temperature sensor 45 is heat insulation, but also can form the structure (in Figure 20, utilizing insulation part A2 to represent) that the chamber in the atomic oscillator 13 41, well heater 43 and room temperature sensor 46 is heat insulation.Wherein, insulation part A2 is made of heat-barrier material.
According to said structure, the easiest operating temperature that is subjected to the chamber 41 of influence of temperature variation can be kept constant, so can all eliminate the output pulsation of reference clock signal CLK0.
[11.3] the 3rd variation
In the above description, used the caesium atomic oscillator, but also can use atomic oscillator (for example rubidium atomic oscillator) in addition as atomic oscillator unit 31.
[11.4] the 4th variation
In the above description, as battery 23, can dispose monetary apparatus one-shot batteries such as lithium battery or silver battery, perhaps battery 23 also can use secondary cell by the configuration generator unit, this generator unit comprises that solar panel maybe will utilize gravity etc. and the kinetic energy of the rotary hammer that rotatablely moves passes to the rotor of generator, and kinetic energy is converted to Blast Furnace Top Gas Recovery Turbine Unit (TRT) of electric energy etc.Perhaps, can also use one-shot battery and secondary cell both sides.
[11.5] the 5th variation
In the above description, the situation of wrist-watch or desk clock has been described, but also can be widely used in using display unit beyond the pointer carry out the time indication digital clock and watch, possess calendar mechanism clock and watch, receive the electric wave that has been applied timing code and according to the timing code radio controlled timepiece of correction time, receive gps signal and all clock and watch such as GPS clock and watch, pocket-watch and wall clock of correction time.Perhaps, can also be widely used in having portable phone, PDA (the Personal Digital Assistants of the action module (can comprise clock module can not comprise yet) of moving according to described reference clock signal, personal digital assistant), portable instrumentation equipment, portable GPS (Global Positioning System, GPS) carry-on electronic equipment such as device, or standard oscillator, notebook PC etc. can utilize the electronic equipment of the power drives beyond the source power supply.Perhaps, can also be widely used in having electronic equipment action module (can comprise clock module can not comprise yet), that can utilize source power supply to drive that moves according to described reference clock signal.
Especially when being applied to radio controlled timepiece, under the situation that can not receive electric wave, for example be arranged near the place that electric wave can not arrive (buildings, underground, water, the noise source), be positioned at the place that do not have electric wave (not having place, universe of standard timing radio station etc.) or the direction of antenna is improper, under the situations such as electric field intensity reduction on just different, the meteorology in prophylactic repair electric wave, wave frequency and timing code, also be enough to show correct time, high-precision radio controlled timepiece can be provided in all cases.And, when being applicable to data communications equipment such as portable phone,, can realize the high-speed traffic of high reliability by determining use reference signal as the communication bit rate from the reference clock signal CLK0 of atomic oscillator 13.
Claims (15)
1. a portable clock is characterized in that, this portable clock has:
Atomic oscillator with atomic oscillator unit and control circuit portion, it generates and the output reference clock signal;
The clock module that has base plate and move according to described reference clock signal;
Power supply as the drive source of described atomic oscillator and described clock module;
Watchcase is equipped with described power supply in this watchcase, and has taken in described clock module and described atomic oscillator; And
The heat-barrier material that heat separates is implemented with described clock module in described atomic oscillator unit,
All covered around the described atomic oscillator unit by described heat-barrier material,
Described atomic oscillator is by with respect to described clock module location, and is bearing on the described base plate by 2, thereby becomes one with this clock module.
2. portable clock according to claim 1 is characterized in that, is all covered by described heat-barrier material around described control circuit portion and the described atomic oscillator unit.
3. portable clock according to claim 1 is characterized in that, this portable clock has and possesses diamagnetic atomic oscillator housing, and described atomic oscillator is accommodated in the described atomic oscillator housing.
4. a portable clock is characterized in that, this portable clock has:
Atomic oscillator with atomic oscillator unit and control circuit portion, it generates and the output reference clock signal;
The clock module that moves according to described reference clock signal;
The heat-barrier material that heat separates is implemented with described clock module in described atomic oscillator unit;
Power supply as the drive source of described atomic oscillator and described clock module;
Watchcase is equipped with described power supply in this watchcase, and has taken in described clock module and described atomic oscillator, and this watchcase has the module incorporating section of taking in described clock module,
This portable clock has the center that is formed by heat-barrier material, and this center is configured in the described watchcase, supports described clock module, and the effect of performance heat separated part,
The described clock module that is supported by described center is taken in described module incorporating section,
All covered around the described atomic oscillator unit by heat-barrier material.
5. according to each described portable clock in the claim 1～4, it is characterized in that this portable clock has the dial plate that the demonstration time uses,
Described atomic oscillator is configured to and can looks affirmation from described dial plate sidelong glance.
6. a portable clock is characterized in that, this portable clock has:
Atomic oscillator with atomic oscillator unit and control circuit portion, it generates and the output reference clock signal;
Dial plate;
The clock module that moves according to described reference clock signal;
The heat-barrier material that heat separates is implemented with described clock module in described atomic oscillator unit;
Power supply as the drive source of described atomic oscillator and described clock module;
Watchcase is equipped with described power supply in this watchcase, and has taken in described clock module and described atomic oscillator, the module incorporating section that this watchcase has bonnet and takes in described clock module,
The described atomic oscillator of configuration with respect to this atomic oscillator, is configured in described dial plate side with described clock module across described heat-barrier material on described bonnet,
All covered around the described atomic oscillator unit by described heat-barrier material.
7. a portable clock is characterized in that, this portable clock has:
Atomic oscillator with atomic oscillator unit and control circuit portion, it generates the also atomic oscillator of output reference clock signal;
Dial plate;
The clock module that moves according to described reference clock signal;
The heat-barrier material that heat separates is implemented with described clock module in described atomic oscillator unit;
Power supply as the drive source of described atomic oscillator and described clock module;
Watchcase is equipped with described power supply in this watchcase, and has taken in described clock module and described atomic oscillator; The module incorporating section that this watchcase has bonnet and takes in described clock module,
Described atomic oscillator is configured to the state that can look affirmation from described dial plate sidelong glance,
Described clock module is configured in described bonnet side across described heat-barrier material with respect to described atomic oscillator,
All covered around the described atomic oscillator unit by heat-barrier material.
8. portable clock according to claim 7, it is characterized in that, described atomic oscillator is given prominence to pointer side from described dial plate and is provided with, and be configured in the following dial plate side position in plane of the rotational trajectory that comprises the minute hand that constitutes described pointer, and be positioned at the position in the rotational trajectory outside of the hour hands that constitute described pointer.
9. according to each described portable clock in the claim 1,4,6,7, it is characterized in that,
Described atomic oscillator unit has:
Enclosed the chamber of atom;
Heat the well heater of described chamber; And
Detect the room temperature sensor of the temperature of described chamber,
Described control circuit portion has control device, this control device is for described chamber, the frequency that becomes the energy level and the energy difference between the ground state level of foment with reference to being equivalent to follow the excitation of described atom, and detected state according to described room temperature sensor, control described well heater, so that described chamber remains on predetermined temperature
Described heat-barrier material carries out heat insulation to described chamber, described well heater and described room temperature sensor.
10. according to each described portable clock in the claim 1,4,6,7, it is characterized in that described portable clock constitutes the wrist-watch with watchband, this watchband is used for this portable clock is worn on wrist.
11. an electronic equipment is characterized in that, this electronic equipment has:
Atomic oscillator with atomic oscillator unit and control circuit portion, it generates and the output reference clock signal;
The action module of moving according to described reference clock signal;
The heat-barrier material that heat separates is implemented with described action module in described atomic oscillator unit;
And
Housing disposes described atomic oscillator, described action module and as the power supply of the drive source of described atomic oscillator and described action module in this housing,
Described atomic oscillator is by with respect to described action module location, and is bearing on the described action module by 2, thereby becomes one with this action module,
All covered around the described atomic oscillator unit by heat-barrier material.
12. an electronic equipment is characterized in that, this electronic equipment has:
The generation that constitutes by atomic oscillator unit and control circuit portion and the atomic oscillator of output reference clock signal;
The action module of moving according to described reference clock signal;
The heat-barrier material that heat separates is implemented with described action module in described atomic oscillator unit; And
Housing disposes described atomic oscillator, described action module in this housing and as the power supply of the drive source of described atomic oscillator and described action module, this housing has the module incorporating section of taking in described action module,
This electronic equipment has the center that is formed by heat-barrier material, and this center is configured in the described housing, supports described action module, and the effect of performance heat separated part,
The described action module that is supported by described center is taken in described module incorporating section,
All covered around the described atomic oscillator unit by heat-barrier material.
13. according to claim 11 or 12 described electronic equipments, it is characterized in that,
Described atomic oscillator unit has:
Enclosed the chamber of atom;
Heat the well heater of described chamber; And
Detect the room temperature sensor of the temperature of described chamber,
Described control circuit portion has control device, this control device is for described chamber, the frequency that becomes the energy level and the energy difference between the ground state level of foment with reference to being equivalent to follow the excitation of described atom, and detected state according to described room temperature sensor, control described well heater, so that described chamber remains on predetermined temperature
Described heat-barrier material carries out heat insulation to described chamber, described well heater and described room temperature sensor.
14. according to claim 11 or 12 described electronic equipments, it is characterized in that described electronic equipment has the function of time set, described action module comprises the clock and watch driving circuit.
15. electronic equipment according to claim 14 is characterized in that, this electronic equipment constitutes watch style equipment.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP211940/2005 | 2005-07-21 | ||
| JP2005211846 | 2005-07-21 | ||
| JP211846/2005 | 2005-07-21 | ||
| JP182360/2006 | 2006-06-30 | ||
| JP182518/2006 | 2006-06-30 |
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| Publication Number | Publication Date |
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| CN101223485A CN101223485A (en) | 2008-07-16 |
| CN100580584C true CN100580584C (en) | 2010-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200680026321A Expired - Fee Related CN100580584C (en) | 2005-07-21 | 2006-07-21 | Portable clock and electronic device |
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| CN (1) | CN100580584C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997340A (en) * | 2013-02-18 | 2014-08-20 | 精工爱普生株式会社 | Quantum interference device, atomic oscillator, and moving object |
| CN104518790A (en) * | 2013-09-27 | 2015-04-15 | 精工爱普生株式会社 | Atomic oscillator, electronic apparatus, moving object, and manufacturing method of atomic oscillator |
| CN109283839A (en) * | 2017-07-19 | 2019-01-29 | 精工爱普生株式会社 | Portable electronic device and wrist-worn device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5504851B2 (en) * | 2009-12-01 | 2014-05-28 | セイコーエプソン株式会社 | Atomic oscillator and manufacturing method |
| EP2738628B1 (en) * | 2011-03-09 | 2016-01-06 | Rolex Sa | Wristwatch with atomic oscillator |
| US10646126B2 (en) * | 2017-07-19 | 2020-05-12 | Seiko Epson Corporation | Portable electronic apparatus and wrist apparatus |
-
2006
- 2006-07-21 CN CN200680026321A patent/CN100580584C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103997340A (en) * | 2013-02-18 | 2014-08-20 | 精工爱普生株式会社 | Quantum interference device, atomic oscillator, and moving object |
| CN103997340B (en) * | 2013-02-18 | 2018-06-12 | 精工爱普生株式会社 | Quantum interference device, atomic oscillator and moving body |
| CN104518790A (en) * | 2013-09-27 | 2015-04-15 | 精工爱普生株式会社 | Atomic oscillator, electronic apparatus, moving object, and manufacturing method of atomic oscillator |
| CN109283839A (en) * | 2017-07-19 | 2019-01-29 | 精工爱普生株式会社 | Portable electronic device and wrist-worn device |
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| Publication number | Publication date |
|---|---|
| CN101223485A (en) | 2008-07-16 |
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