WO2022084776A1 - Horloge de grande taille consommant peu d'énergie - Google Patents

Horloge de grande taille consommant peu d'énergie Download PDF

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Publication number
WO2022084776A1
WO2022084776A1 PCT/IB2021/059040 IB2021059040W WO2022084776A1 WO 2022084776 A1 WO2022084776 A1 WO 2022084776A1 IB 2021059040 W IB2021059040 W IB 2021059040W WO 2022084776 A1 WO2022084776 A1 WO 2022084776A1
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WO
WIPO (PCT)
Prior art keywords
pendulum
oscillation
clock
pulse
machine
Prior art date
Application number
PCT/IB2021/059040
Other languages
English (en)
Inventor
Dan Dinh DANG
Original Assignee
Dang Dan Dinh
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 Dang Dan Dinh filed Critical Dang Dan Dinh
Priority to JP2023549152A priority Critical patent/JP2023549440A/ja
Publication of WO2022084776A1 publication Critical patent/WO2022084776A1/fr

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/02—Oscillators acting by gravity, e.g. pendulum swinging in a plane
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/02—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum
    • G04C3/027—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a pendulum using electromagnetic coupling between electric power source and pendulum

Definitions

  • the invention refers to a large size clock product, which is similar to tower clocks originated in the 19 th century and found in many places all over the world that some of them are the most famous such as Zytglogge (Switzerland), Big Ben (UK), Philadelphia (US), Spasskaya - Moscow ( Russia), Rathaus Glockenspiel (Germany), Peace Ottawa (Canada) and Rajabai (India), etc.
  • the oscillation is passive object, positioned at the end of mechanical wheel system, it receives energy from gravity of a heavy weight and transfers the energy through a wheel system to maintain its frequent oscillation and through wheel system to maintain its harmonic oscillation, making the wheel system to rotate at a speed compatible to the correct displaying needed of the hand system.
  • the pendulum oscillation is active object, it controlled by an electric pulse with a standard frequency created by quartz, this oscillation produces energy to rotate the wheel system and the displaying hands of clock. Thanks to the quartz, this clock has thousand times higher degree of accuracy than conventional clocks. It is regarded as one large size electronic clock, consuming electric current with low amplitude and having many excellent characteristics which is suitable to new industrial era.
  • a large size clock of 4mx4m with 4 sides positioned on top of Hoan Kiem Lake post office is one of the example for that situation.
  • This clock was originated in China, installed in 1976.
  • Its owner, Hanoi Telecommunication Corporation needs to replace it by a new one but has not found out any domestic provider because if importing a clock from a foreign country, it is expensive and the maintenance is difficult.
  • This invention is to provide a new clock to overcome disadvantages of conventional clocks and have outstanding characteristics.
  • the large size clock consuming low energy of the invention includes: an electronic pulse controlling box wherein an electronic circuit applies piezoelectric effect of quartz crystal to create an oscillation with stable frequency of 32,768 Hz, separated by a complex integrated circuit into a pulse oscillation with a frequency of 1Hz, wherein the pulse width is one per 20 seconds and the electric pulse changes direction each second; a harmonic oscillation structure includes an electromagnet, a pendulum bob, a pendulum rod, a hook holding the pendulum rod and a pawl wherein the generated electric pulse amplified many times is conducted through an electromagnetic coil, the electromagnetic coil becomes a changing electromagnet with frequency of a standard pulse of 1 Hz at the input and a standard frequency of 1 Hz that is almost equal to 1 Hz of a caesium clock which is used as a standard for the international time, in the electronic circuit, as the square pulse has almost vertical side, the change speed of the current through the coil is large, from 0 to maximum value (and in turn) in a period nearly equal to zero
  • Fig.l is to demonstrate the block diagram of the machine of conventional clocks.
  • Fig.2 is to demonstrate the block diagram of the machine of the clock of the invention.
  • Fig.3 is to demonstrate structure of the pendulum bob of the clock with the design of a pawl to make the wheel to rotate non-reversibly.
  • Fig.4 is to demonstrate the machine of the large size clock consuming low energy of the invention.
  • Fig.5 is to demonstrate the position of the arm of the pawl, the ratchet wheel and the pawl in the relation to the pendulum rod.
  • Fig.6 is to demonstrate the square pulse with its width of 1/20 Hz.
  • Fig.7 is the perspective view to illustrate the position the pawl on the arm.
  • Fig.8 is the enlarged view of the pawl according to Fig.7.
  • Fig.9A is to demonstrate the position of the stainless blade.
  • Fig.9B is the perspective view to illustrate the position of the stainless blade.
  • Fig.10 is to illustrate the bevel gear.
  • Fig.l 1A is to demonstrate the quartz circuit.
  • Fig.1 IB is to demonstrate the pulse generated by the quartz circuit.
  • Fig.12 is to demonstrate changing direction bevel gear set of the shaft.
  • Fig.13 is to demonstrate the gear box.
  • Fig.l4A is to demonstrate the thin steel sheet in the hanging structure of the conventional pendulum bob.
  • Fig.l4B is the perspective view to illustrate the hanging position of the thin steel sheet in the hanging structure the conventional pendulum bob.
  • Fig.l5A is to demonstrate the electromagnetic coil in the relation to the electromagnet from front.
  • Fig.l5B is the perspective view of electromagnetic coil in the relation to the electromagnet. Detailed description of the invention
  • Fig.l is to show the block diagram of the machine of conventional clocks wherein the weight over 300 kg transfers a kinetic energy to the hand indication set, the clock hands rotate to make the mechanical machine to operate and transfer oscillation to the pendulum.
  • Fig.l4A and Fig.l4B illustrate the hanging structure of the conventional pendulum bob.
  • the principle of the conventional clocks has been replaced by the principle of the new clock of the invention.
  • the part to make the accuracy of the clock is quartz.
  • the finding out of the piezoelectric effect, its great physical property, is the background to produce the clock with a very high degree of accuracy.
  • it is possible to adjust the frequency of quartz oscillation so that the error of the clock is ⁇ 10 seconds per year based on the international time, i.e., the degree of accuracy is ⁇ 1 second per 20 million years.
  • the clock of the invention includes following parts:
  • the operation mechanism of the clock machine of the invention is an electronic controlling box which operates to create the oscillation for pendulum bob 3, the pendulum oscillation generates a kinetic energy to transfer to gear reducer 4 and gear box 61 then transfer to the time indication set including hands 6.
  • a pendulum oscillation is first generated, this oscillation is transfer to gear reducer 4 and rotate the clock hands. This is the reversed principle compared to the principle of conventional clocks.
  • the large size clock consuming low energy of the invention includes electronic pulse controlling box 2, pendulum bob 3, gear reducer 4 containing ratchet wheel 42, arm 411 and pawl 41, direction unit 5, gear box 61 and a time indication set 6 including hands made of stainless steel.
  • the most important part of the clock of the invention is electronic circuit 2 (it is called the electronic controlling box).
  • the quartz oscillation circuit is shown in Fig.11 A, Fig.1 IB with the frequency of 32,768 Hz, separated by a complex integrated circuit into the pulse oscillation with frequency of 1 Hz and the pulse width is one per 20 seconds and the direction of the pulse is changed second by second. With the said frequency of 1 Hz, the degree of accuracy reaches as high as mentioned above.
  • the pulse with square side is to increase the electromotive force for the electromagnetic coil while the width of 1 per 20 seconds is to make the current to be consumed as low as 5pA.
  • the generated electric pulse amplified many times is conducted through electromagnetic coil 7, the electromagnetic coil becomes a changing electromagnet with a frequency of standard pulse of 1 Hz at the input.
  • the square pulse has almost vertical side so that the change speed of the current through the coil is large, from 0 to maximum value (and in turn) in a period nearly equal to 0 so that it generates a large electromotive force.
  • Electromagnet 8 with a large electromotive force is provided on pendulum rod 33 of pendulum bob 3; it is placed in the changing electromagnetic field of the coil so that the harmonic oscillation is maintained without depending on any factor.
  • the frequency of oscillation When adjusting the length of the hanging rod, the frequency of oscillation will be changed. At the frequency of 1 Hz which is equal to the standard frequency of the electromagnet, the two oscillations will be resonated each other, since then the pendulum bob reaches the maximum amplitude of about 0.22 m with its angle a of 7.0°. At this time, the energy of the oscillation pendulum reaches the maximum value which is calculated by the following equation: wherein W is the energy of the oscillation pendulum; m is the weight of the pendulum bob; and v max is the maximum speed of the pendulum bob.
  • m is equal to 10 kg and the length of pendulum rod is 1.0 m, the energy of oscillation pendulum is significantly high.
  • gear reducer 4 is a group of mechanical wheels assembled inside a seal box containing lubricant, its function is to reduce the rotation speed of the input shaft down to several times which is called the reduction index i. At the output of gear reducer 4, rotation speed is reduced i times, as such the rotation moment is additionally amplified to hundreds of times.
  • the gear box is commonly used in lift machine for heavy weight.
  • the preferred gear box for the invention has the i index of 120 and a motor with the input 0.1 KW is in install to generate output of hundreds of horsepower (Ihp is 745.7 W). With that power, it is possible to lift up items of hundreds of kilograms.
  • Ihp is 745.7 W. With that power, it is possible to lift up items of hundreds of kilograms.
  • the gear box is used as shown in Fig.13, a large moment for the shaft of clock hands is generated, so that it is possible to assemble hand sets with different desired size and designs.
  • the pendulum bob is the non-stop working mechanical part which is designed to permit fulcrum 15 as shown in Fig.9A and Fig.9B to support stainless steel knife blade 151 to hang the pendulum bob so that the friction and the corrosion are very small.
  • the ratchet wheel and the pawl are also parts under heavy working and they are designed with automatic lubricant to minimize the corrosion.
  • the clock of the invention is different from the conventional clocks as below:
  • the two clocks have a harmonic oscillation of a simple pendulum
  • the oscillation of simple pendulum in the machine of the conventional mechanical clock just has one duty which is to keep for the fall of the weight and the wheel system to rotate with a specific speed so that the time indication set is accurate. Therefore, the accuracy of the clock fully depends on the frequency of oscillation of pendulum.
  • the energy for the clock is from the gravity of the weight.
  • the energy is from the electronic circuit quartz to generate and maintain the harmonic oscillation of pendulum.
  • the mechanical energy of pendulum is converted to the rotation moment of the mechanical wheel system of the clock.
  • the harmonic oscillation has a standard frequency of 1 Hz so that the degree of accuracy of the clock is high.
  • the gold proportion in math and Fibonanci series are used so that the effect of the machine is increased, for example, at the balance position of the pendulum oscillation, if the cylinder electromagnet is placed inside the electromagnet coil with the proportion of the inside length of 0.618, the amplitude oscillation is much greater than other options.
  • the gold proportion is 0.61803 which is the proportion between the sum of two values and the higher value and it is equal to the proportion between the higher value and the lower value.
  • the equation is shown as follows: wherein q> is the gold proportion; a is the higher value and b is the lower value.
  • a DC power from 15V to 30V (depending on the length of hands) provided from the electric power system is the power used for the electronic circuit of the clock.
  • the pulse generated from this circuit controls the harmonic oscillation of the machine the clock.
  • the circuit consumes a current of about 5pA so that a power unit of 24V-2200mAh in reality permits the clock to work at least 15 days. Comparing to the power of an iPhone 11 of 5V-4500mAh, the iPhone only operates in about 1 day. This is to show that the machine of the clock of the invention consumes a low energy. It has been known that, the large conventional clock has its huge mechanical machine with big wheel system and facilities which occupies a space of several square meters or occupies a room. To permit the clock to operate, it requires people to take care and maintenance frequently.
  • the machine of the invention is much more simple, it includes main parts as below:
  • a harmonic oscillation system includes a pendulum bob, preferably a pendulum bob of 10 Kg, with a pendulum rod to hang which is made of stainless steel, a small cylinder electromagnet and an electromagnetic coil.
  • a force transferring system in the form of a pawl to transfer energy from pendulum oscillation to become one way moment to rotate a gear box.
  • the invention has provided a large size clock, consuming low energy and achieving criteria: accuracy, durability and simplicity as mentioned above.
  • accuracy accuracy
  • durability simplicity
  • this is just to mention the principle of the clock. From the design and manufacture, it is required skills and a long time experience to produce the clock.
  • the large size clock consuming low energy of the invention has provided a type of new clock for public areas. It can be said that this is a type of large sized electronic clock with very high degree of accuracy and many outstanding characteristics.
  • the product in the testing period has its size up to 5 m. In the future, based on its principle, it is possible to produce larger sizes. It is possible to install the clock at any place without affecting by environment and climate.
  • the manufacturing and mass production are not difficult with low cost.
  • the product has a long lifespan because it uses non-oxidation materials and its machine design is simple.
  • the clock does not require any person to monitor.
  • the period maintenance time is longer and there is no break-down problem as well as the repair is minimized, etc.
  • the monitor and adjustment for the clock from a far center or by a mobile phone are convenient.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)

Abstract

L'invention concerne une horloge de grande taille consommant peu d'énergie. Par comparaison avec la machinerie des horloges conventionnelles, les deux horloges possèdent une machinerie mécanique, un système d'oscillation harmonique et un ensemble d'indication par aiguilles. Cependant, le principe de fonctionnement est totalement différent. Dans la machinerie selon l'invention, un circuit électronique à quartz génère une oscillation d'impulsion avec une fréquence standard de 1 Hz. Cette impulsion maintient l'oscillation du balancier et crée de l'énergie pour faire fonctionner la machinerie de l'horloge. Le balancier à oscillation harmonique est changé en une oscillation contrainte suivant la fréquence d'impulsion, de sorte que le degré de précision de l'horloge électronique peut atteindre ± 10 secondes par an. Par conséquent, l'énergie nécessaire pour faire fonctionner l'horloge est également le courant pour le circuit électronique, elle est très faible avec une moyenne de 5 µA. Un ensemble d'oscillation de balancier comprend une lentille de balancier de 10 kg, une tige de balancier suspendue à la lentille de balancier, un électroaimant fixé sur la tige de balancier, une bobine électromagnétique fixe, une roue à rochet et un cliquet pour convertir l'énergie de l'oscillation de balancier en un moment destiné à faire tourner le système de roue de la machinerie d'horloge. L'ensemble de roues mécaniques est remplacé par une boîte d'engrenages moderne et simple qui est capable de porter des aiguilles de grande taille.
PCT/IB2021/059040 2020-10-22 2021-10-01 Horloge de grande taille consommant peu d'énergie WO2022084776A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023549152A JP2023549440A (ja) 2020-10-22 2021-10-01 低消費エネルギーの大型時計

Applications Claiming Priority (2)

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VN1-2020-06062 2020-10-22
VN1202006062 2020-10-22

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WO2022084776A1 true WO2022084776A1 (fr) 2022-04-28

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196579A (en) * 1977-11-02 1980-04-08 Urgos Uhrenfabrik Schwenningen, Haller, Jauch und Pabst GmbH & Co. Mechanically operating pendulum clock with an electronic correcting device
US4509865A (en) * 1983-11-22 1985-04-09 Chu Kuo Chin Electromagnetically-induced rocking clock
US4641975A (en) * 1985-03-11 1987-02-10 Joseph Kieninger Uhrenfabrik Gmbh Clock with mechanical drive
US20040017734A1 (en) * 2002-07-29 2004-01-29 Hendrik Stallinga Clock device with pendulum producing visual effect
JP2004184289A (ja) * 2002-12-04 2004-07-02 Tojiro Nakamura 半導体電子回路補正式振り子時計

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196579A (en) * 1977-11-02 1980-04-08 Urgos Uhrenfabrik Schwenningen, Haller, Jauch und Pabst GmbH & Co. Mechanically operating pendulum clock with an electronic correcting device
US4509865A (en) * 1983-11-22 1985-04-09 Chu Kuo Chin Electromagnetically-induced rocking clock
US4641975A (en) * 1985-03-11 1987-02-10 Joseph Kieninger Uhrenfabrik Gmbh Clock with mechanical drive
US20040017734A1 (en) * 2002-07-29 2004-01-29 Hendrik Stallinga Clock device with pendulum producing visual effect
JP2004184289A (ja) * 2002-12-04 2004-07-02 Tojiro Nakamura 半導体電子回路補正式振り子時計

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