Home electrical system with two-way data transmission between base and appliance

Abstract

A home electrical system with two-way data transmission between a base and an appliance. [Solution] The present invention relates to a domestic electrical system, for example for ironing, comprising an appliance such as an iron and connected to a base by a cord comprising at least: a first wire formed by a first conductor set for the high voltage (HV) transmission of heating power; a second wire formed by a second conductor set for the low voltage (LV) power supply of an electronic board located within the appliance; and a third wire for providing bidirectional data transmission between the base and the appliance; wherein the third wire is formed by the second conductor set; and the system further comprises a modulator suitable for modulating the voltage and / or current circulating through the second conductor set in order to activate the second wire and the third wire, or exclusively the third wire. [Selected Figure] Figure 1

Description

[Technical field]

[0001] The present invention relates to domestic electrical systems, in particular ironing systems that include an appliance such as an iron connected to a base by a cord, and more particularly to bidirectional data transmission along the cord. [Background technology]

[0002] In most existing ironing systems, the cord comprises a first wire formed of a set of conductors for the high voltage (HV) transmission of heating power and a second wire formed of another set of conductors for the low voltage (LV) power supply to a circuit board within the iron, usually located in the handle.

[0003] HV refers to the voltage required to heat the iron, for example 220V AC.

[0004] LV refers to a voltage sufficient to power a circuit board or provide two-way communication between the base and the iron, for example 5V or 12V DC.

[0005] Where the base includes a steam generator, the cord includes a flexible hose for conveying the steam.

[0006] In some prior art systems, the user can change certain operating parameters of the generator, such as pressure, but these parameters are changed by acting directly on the generator or by activating buttons or potentiometers located on it.

[0007] During this type of procedure, the user must either put down the iron or hold it in one hand and change the generator parameters with the other. In all cases, this type of procedure is cumbersome and even potentially dangerous.

[0008] To avoid these drawbacks, and more generally for controlling the base directly from the iron, an additional wire can be added to the cord, this wire being suitable for providing data transmission between the base and the iron, typically bidirectional data transmission.

[0009] US Pat. No. 5,399,623 and US Pat. No. 5,499,633 describe ironing systems in which the cord includes a data transmission line.

[0010] Although the above system works correctly, it still requires the presence of three sets of wires and possibly a hose to deliver the steam.

[0011] In this type of construction, the cord is relatively thick, bulky and rather stiff, characteristics which have the effect of impairing the handling of the iron. [Prior art documents] [Patent documents]

[0012] [Patent Document 1] EP 1 815 056 B1 [Patent Document 2] US 2009 / 084007 Summary of the Invention

[0013] The present invention makes it possible to overcome the above mentioned drawbacks. To this end, the invention relates to a method for producing a method for treating a subject, comprising the steps of: Next Domestic electrical systems and uses. 1. A domestic electrical system comprising an appliance, the appliance comprising at least: a first wire formed of a first conductor set for high voltage (HV) transmission of AC operating power for the device; a second wire formed by a second set of conductors for a low voltage (LV) supply of DC power to a circuit board located within the device; a third conductor formed by the second set of conductors for providing bidirectional data transmission between the base and the device; connected to the base by a cord including The home electrical system further includes a modulator configured to modulate the voltage and / or current through the second set of conductors to sequentially activate the second and third conductors or to exclusively activate the third conductor; the device includes a power source configured to provide power to the circuit board of the device when the second electrical lead is deactivated. Home electrical systems. 2. The system described in claim 1, wherein the power source is a battery. 3. The system described in claim 1, wherein the power source is a capacitor. 4. The system described in claim 1, wherein the base includes a steam generator. 5. The device includes at least one actuator; A system described in any one of 1 to 4 above, wherein the actuator can be manually activated to control the movement of the base. 6. Use of a system described in any one of 1. to 5. above, characterized in that data is transmitted from the base to the device and from the device to the base. 7. Use of the system described in 4. above, which uses a steam generator, the pressure of which is regulated from the device. 8. Use of the system according to 6. or 7. above, wherein the operating power of the device is regulated from the device.

[0014] The invention thus relates to a domestic electrical system, for example for ironing, which is connected by a cord to a base ( base ) connected to an iron or other appliance, the cord comprising at least the following: a first conductor formed by a first conductor set for HV transmission of heating power; A second wire formed by a second set of conductors for the LV supply of power to a circuit board located in the device; A third wire to provide bidirectional data transmission between the base and the instrument; the third wire is formed by the second conductor set; the system further comprises a modulator suitable for modulating the voltage and / or current through the second conductor set to actuate the second and third wires, or exclusively the third wire.

[0015] The fact that the second and third wires use the same set of conductors makes it possible to reduce the diameter of the cord and therefore its bulk, as well as its stiffness.

[0016] The modulator is preferably designed to allow digital transmission of data, for example successive bits, generated for example as follows: 12V=1, 0V=0.

[0017] According to one aspect of the invention, the base includes a steam generator. In this configuration, the cord includes a flexible hose for supplying steam to the iron.

[0018] Alternatively or additionally, the base may include a liquid reservoir, in this configuration the cord comprises a flexible hose through which liquid can flow.

[0019] The invention also relates to the use of a domestic electrical system as defined above, characterized in that data is transmitted from the base to the appliance and vice versa by means of a modulator.

[0020] The present invention makes it possible to power the electronics of an appliance without HV having to be converted to LV within the appliance. In the context of the present invention, this conversion is performed in the base, preferably by means of a printed circuit board (PCB) and a current limiter. To transmit data, the base transmits an item of information by modulating the voltage as indicated above. The appliance, for example an iron (see FIG. 1), then "replies" and issues an order to the base. During the response phase, power is provided to the iron's circuit board by a power source located in the iron, for example a battery or a capacitor.

[0021] During the phase of transmitting data through the second set of conductors (activation of the third conductor), the "0" state is achieved, for example, by cutting off the voltage, while the "1" state is achieved by maintaining the LV (for example, 12V or 5V).

[0022] FIG. 1 illustrates the mode of operation of the second and third wires along the second conductor set.

[0023] A typical procedure is as follows: 1. Continuous power supply to the iron's circuit board after a period of no communication (the second wire is activated) 2. Base initiates communication (3rd wire activated, 2nd wire continues active) 3. If the communication is received correctly, the iron responds directly (activating the third wire, deactivating the second wire) 4. Start a new cycle from step 1 above.

[0024] Figures 2 and 3 show examples of electronic circuits used in the system according to the invention when applied in the field of ironing: Figure 2 shows the circuit of the base and Figure 3 the circuit of the iron.

[0025] In the base (Figure 2), a current limiter is used with the second set of conductors (wires 2 and 3). During data transmission, the limiter is only active for transmission of the "0" state.

[0026] For state transmission, the iron and base work in the same way. Sending "0" state = short circuit (i.e. 0V) Sending "1" state = Q1 or Q9 open (e.g. 5V or 12V).

[0027] For receiving purposes, the iron and base work in the same way. A comparator detects whether the line level is "high" (="1") or "low" (="0"). Within the iron, the "IRON Power Supply" section ensures that capacitor C26 does not discharge through a line short during communication.

[0028] The HV may be controlled by the base or the iron.

[0029] The steam generator, or more generally the base, may be controlled by actions only on the iron, for example on the handle. [Industrial Applicability]

[0030] Of course, the present invention is not limited to the above mentioned scenario. The invention is not limited to ironing systems or steam generating systems as shown, but covers any domestic electrical system comprising an appliance connected to a base by a cord and having at least two conductor sets, at least one of which provides bidirectional communication between the base and the appliance. [Brief description of the drawings]

[0031] [Figure 1] FIG. 1 illustrates the mode of operation of the second and third wires along the second conductor set. [Diagram 2] Of the electronic circuits used in the system according to the invention when applied in the field of ironing, FIG. 2 shows the basic circuit. [Diagram 3] Of the electronic circuits used in the system according to the invention when applied in the field of ironing, FIG. 3 shows the circuit of the iron.

Claims

1. A domestic electrical system comprising an appliance, the appliance comprising at least: a first wire formed of a first conductor set for high voltage (HV) transmission of AC operating power for the device; a second wire formed by a second set of conductors for a low voltage (LV) supply of DC power to a circuit board located within the device; a third wire formed by the second set of conductors for providing bidirectional data transmission between the base and the device; connected to the base by a cord including The home electrical system further includes a modulator configured to modulate the voltage and / or current through the second set of conductors to sequentially activate the second and third conductors or to exclusively activate the third conductor; the device includes a power source configured to provide power to the circuit board of the device when the second electrical lead is deactivated. Home electrical systems.

2. The system described in claim 1, wherein the power source is a battery.

3. The system of claim 1, wherein the power source is a capacitor.

4. The system of claim 1 , wherein the base comprises a steam generator.

5. The device includes at least one actuator; The system of any one of claims 1 to 4, wherein the actuator can be manually activated to control the movement of the base.

6. Use of a system according to any one of claims 1 to 5, characterised in that data is transmitted from the base to the instrument and from the instrument to the base.

7. 5. Use of the system according to claim 4, using a steam generator, the pressure of which is regulated from said equipment.

8. 8. Use of the system according to claim 6 or 7, wherein the operating power of the device is regulated from the device.

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