DE3442862A1 - Crystal mechanism, especially for wristwatches - Google Patents

Abstract

The invention relates to a crystal mechanism having an electrical drive (crystal module), especially for wristwatches. In this case, it is intended to create a new drive system for crystal watches, which drive system, however, continues to guarantee time accuracy but in which there are no batteries or rechargeable batteries as the energy source. This is made possible by means of a spring clockwork mechanism as an energy store which, by means of a transmission system having rotation-speed control, supplies an electrical generator in order to emit a virtually constant power (voltage) to the electrical watch drive (crystal module). <IMAGE>

Description

Description:

The invention relates to a quartz movement with an electric drive (quartz module), especially for wristwatches.

There are quartz movements with an electric drive, so-called.

Quartz modules known in a compact design; these draw their drive energy from batteries, which today have a capacity of 1 to 2 years, but then through new batteries need to be replaced.

It is also known in wristwatches with a thermal generator, which its energy from the temperature difference between body heat on the wearer's arm and the outside temperature refers to feed a battery, which then provides the drive energy for the quartz module supplies; these batteries must and can also be replaced leak.

After all, it is also known as a source of energy in pocket calculators to use photoelectric cells.

It is now the object of the invention to provide a new drive system for quartz watches to create, which still guarantees accuracy, but which Batteries or rechargeable batteries as an energy source are not required.

This task is performed in a quartz movement with an electric drive (quartz module), esp. Wristwatch according to the invention solved by a spring winding as an energy store, which by means of a transmission system with speed regulation an electric Generator for the delivery of almost constant power (voltage) to the electr. Clock drive (Quartz module) feeds.

If necessary, the spring winding / with slip clutch can be automatic and / or manually operable, i.e. by means of automatic or manual winding in done conventionally.

For an almost constant speed control from the spring accumulator to the electr. Generator can be either a centrifugal governor or a corresponding electronic one Use control circuit.

According to a further concept of the invention, the spring winding can also of a. Thermal generator, preferably with a capacitor circuit for power bridging or by means of photoelectric cells, preferably with an intermediate capacitor circuit be effected via an electric motor with transfer mechanism.

An embodiment of a Querzwerk with electr. Drive (quartz module) with a spring 9 a91s energy source according to the invention is for example in the The drawing shows: Figure 1 shows the schematic representation with automatic and / or manual winding of the spring accumulator and FIG. 2 the schematic representation with spring winding by means of a thermal generator.

As can be seen from the drawing, the quartz movement 1 is electrically powered Drive (quartz module) from an electr.

Generator 2 fed off with almost constant voltage, which (2) in turn by a spring winding 3, 4 by means of a transmission system 5 with a speed controller 6 is driven. The spring winding 3, 4 is a conventional mainspring with slip clutch, which can be operated by hand or by means of automatic winding in a known manner is to be tensioned as an energy source.

Here, the elevator energy for the spring energy store can also be from one Thermal generator 7, if necessary with a capacitor circuit for power bridging Generated via an electric motor 8 with conversion mechanism 9 via the angular drive 10 will. The elevator energy for the spring energy store can also be photo-electric Cells optionally with an intermediate capacitor circuit via an electric motor are generated with conversion mechanics, as this is not specifically shown.

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Claims (6)

"Quartz movement, especially for wristwatches" Claims: Quartz movement with electric drive (quartz module), especially for wristwatches, marked by a spring winding as energy storage, which by means of a translation system with speed control an electric generator to deliver almost constant power (Voltage) to the electr. Clock drive (quartz module) feeds. 2. Quartz movement nZcn claim 1 marked with it, geqeaenen ai s that the spring winding / with slip clutch can be operated automatically and / or manually. 3. Quartz movement according to claim 1 or 2, characterized in that for Speed control a centrifugal governor is used. 4. Quartz movement according to claim 1 or 2, characterized in that the Speed control is effected by an electronic control circuit. 5. quartz movement according to claim 1 or 2, characterized in that the Spring winding from a thermal generator, preferably with a capacitor circuit for Power bridging takes place via an electric motor with a conversion mechanism. 6. Quartz movement according to claim 1 or 2, characterized in that the Spring winding by means of photoelectric cells, preferably with an intermediate capacitor circuit is effected via an electric motor with a transfer mechanism.