Technical field
[0001] The present invention is developed in the technical field of household appliances,
in particular multi-function household appliances, including cooking hobs, in accordance
with the preamble of claim 1.
State of the art
[0002] Household appliances that perform functions traditionally attributed to two or more
distinct household appliances are known in the art. They are generally appreciated
for convenience of use and compactness, compared to the use of separate household
appliances.
[0003] Examples include washer dryers, hob ovens, and hob rangehoods.
[0004] In particular, referring to the latter type of multi-function household appliance,
it is noted that the hob integrates, for example, a downdraft hood, that is, a hood
capable of sucking the cooking fumes downwards through an opening obtained in the
hob.
[0005] There are also known household appliances capable of combining more than two functions,
such as a household appliance including a hob, an oven and a downdraft hood.
[0006] Generally, each function of the household appliance involves the activation of an
electrical load suitably designed for the function of interest. An example of an electrical
load can be an electrical motor, usually connected to a pump or a fan, for the circulation
of a liquid or air, or to a mechanical tool, to move bodies in the household appliance.
For example, motors can be provided for pumps that supply liquids to a washing machine,
for fans that circulate hot air in an oven, for fans that suck air into a hood, for
the drum of a washing machine in which clothes to be washed are placed, or for a turntable
of an oven to expose a dish to heat more evenly.
[0007] Another example of an electrical load is a heating element, such as a resistor or
an inductor. Resistors can be used to heat liquid supplied to a washing machine, to
dry cloths in a dryer, to heat an oven compartment, or to heat a region of a hob.
Inductors can be used in a hob, for the inductive transmission of current to a suitable
receiver inductor incorporated in a piece of cookware, in order to heat it.
[0008] An example of a household appliance having multiple electrical loads is shown in
document
EP 4008966 A1, in which a suction hood and heating elements of a hob are independently operable
by an electronic controller.
[0009] Further examples of household appliances with multiple electrical loads are shown
in document
US 8872077 B2, which describes a hob with a ventilation device and an electronic control system,
and in document
CN 112797447 B, which shows a ventilation unit for a hob.
[0010] Nowadays, household appliances that allow for remote activation are widespread. Thus,
a switch-on command, indicating a program to be performed by the household appliance,
may be sent from a remote device, such as a remote control or a smartphone, by wireless
signals, for example wi-fi.
Problems of the background art
[0011] For some household appliances, in particular electric, resistance or induction hobs,
the regulations prohibit remote activation, due to the risks they may cause to people
unaware of the activation of the heating elements.
[0012] Therefore, the hobs are equipped with general switches with only manual activation,
which enable and disable the supply of the heating elements. For example, the main
switch may disable the controller from which a user enters commands.
[0013] The hobs are therefore called household appliances with supervised activation, because
they are impossible to activate without the physical presence of the user.
[0014] The Applicant has noted that in known multifunction household appliances, if a supervised
activation household appliance, such as a hob, is included, the main switch, when
switched off, disables the supply of the entire household appliance. While this complies
with the regulations for the hob, this is an impediment to the other functions of
the household appliance, such as a hood or an oven, which are not remotely controllable,
although this would be permitted by the regulations and would not cause significant
hazards to the user.
Summary of the invention
[0015] The object of the present invention is to overcome the drawbacks set forth with reference
to the prior art, and in particular to provide a multifunction household appliance
in which remote control is permitted, where possible, despite the presence of supervised
activation household appliance functions.
[0016] These and other objects are achieved by a multi-function household appliance according
to any one of the appended claims.
Advantages of the invention
[0017] The invention provides that the household appliance comprises two distinct supply
devices, substantially independent of each other, although connected to the same connector
for mains power supply. The first supply device is dedicated to a first electrical
load, and a main switch allows enabling and disabling the supply of the first load
by the first power supply device. The first electrical load, therefore, can meet the
regulations for supervised activation.
[0018] The second supply device is dedicated to a second electrical load and is also connected
to a controller of the household appliance. The controller can remotely receive an
activation signal, and in response can command the supply of the second electrical
load, even in conditions wherein the main switch is off. Therefore, those functions
of the household appliance that do not require supervised activation can be commanded
remotely, without compromising the safety of the other supervised functions.
[0019] Further features and advantages of the invention will be recognisable by a person
skilled in the art from the following detailed disclosure of exemplary embodiments
of the invention.
Brief disclosure of the figures
[0020] For a better understanding of the following detailed disclosure, some embodiments
of the invention are illustrated in the accompanying drawings, wherein:
- figure 1 shows a block diagram of the steps of a multi-function household appliance
according to the present invention;
- figure 2 shows a perspective view of an embodiment of the multi-function household
appliance according to the present invention;
- figure 3 shows a perspective view of a preferred embodiment of a household appliance
according to the present invention.
DETAILED DESCRIPTION
[0021] The object of the present description is a multi-function household appliance, indicated
by 1 in the attached figures.
[0022] The multi-function household appliance 1 comprises an electrical connector 2 connectable
to an electrical network. As is known to the person skilled in the art, the electrical
connector 2 is configured to be inserted into a respective electrical socket, not
shown. Preferably, the electrical connector 2 is compatible with electrical outlets
in accordance with current national/international regulations or standards.
[0023] Depending on the application and the country of installation, a person skilled in
the art will recognize that the electrical connector 2 can be provided with a plurality
of conductors with different functions, to be connected to corresponding conductors
of the electrical network. For example, the connector 2 may be a single-phase connector,
with a phase conductor and a neutral conductor. In addition, a protective conductor
may be provided.
[0024] The household appliance 1 comprises a first power supply device 3 electrically connected
to the electrical connector 2.
[0025] The household appliance 1 further comprises a second power supply device 4 electrically
connected to the electrical connector 2.
[0026] The first and second power supply devices 3, 4, being powered by the same conductors
of the connector 2, are parallel to each other.
[0027] Preferably, the first power supply device 3 and the second power supply device 4
each comprise at least one electrical converter.
[0028] As is known to the person skilled in the art, the first power supply device 3 and
the second power supply device 4 are configured to receive incoming electrical energy
from the electrical network through the electrical connector 2 and to transmit it
at a reduced voltage level, as well as optionally with adjustable frequency and/or
waveform, to electrical loads of the household appliance 1.
[0029] For example, a converter of the first and/or second power supply device 3, 4 may
be a rectifier, for supplying direct voltage to at least one load of the household
appliance 1. In another example, the first and/or second power supply device 3, 4
may comprise several converters, including a rectifier and an inverter in series with
each other, for supplying the at least one load of the household appliance 1 with
voltage with adjustable amplitude, frequency and/or waveforms.
[0030] The household appliance 1 comprises a first electrical load 5, connected to the first
power supply device 3 and configured to perform a first household appliance function.
[0031] For the purposes of the present description, "household appliance function" means
an operation or a set of operations characteristic of the functionality of a traditional
single-function household appliance, which can be carried out by the action of one
or more respective electrical loads. By way of example, in the case where the first
household appliance function is a hob function, an electrical load may be embodied
in a heating element, such as an inductor for an induction hob, which performs the
operation of inductively transmitting current to a suitable receiver inductor incorporated
in a piece of cookware.
[0032] In this description, for simplicity, reference is made mainly to a first electrical
load 5 for performing a first household appliance function, and a second electrical
load 6 for performing a second household appliance function. However, it should be
noted that to perform a specific household appliance function, multiple electrical
loads may be required, dedicated to the same operation or to different operations
of the same household appliance function. Furthermore, the system may provide several
first electrical loads 5, dedicated to different household appliance functions, and/or
several second electrical loads 6, dedicated to still different household appliance
functions.
[0033] For example, to perform an oven function, multiple electrical loads may be provided
corresponding to distinct operations of the oven function, such as ventilation motors,
resistance heating elements, lighting elements for interior lighting of the oven,
and signal lights.
[0034] According to the preferred embodiment of the invention, illustrated in figure 2 or
figure 3, the household appliance 1 comprises at least one hob 20 comprising a plurality
of heating elements 21, each of which represents a first electrical load 5.
[0035] Still preferably, the first household appliance function of the first electrical
load 5 is therefore of a supervised activation type. In fact, it should be noted that,
according to current regulations, the hob must be supervised to ensure the safety
of users.
[0036] According to one aspect, the household appliance 1 may comprise a plurality of first
electrical loads 5 of supervised activation type.
[0037] The household appliance 1 comprises at least one second electrical load 6, configured
to perform a second household appliance function.
[0038] The second electrical load 6 is electrically connected to the second power supply
device 4, and not to the first power supply device 3. Conversely, the first electrical
load 5 is not connected to the second power supply device 4.
[0039] Preferably, the second household appliance function of the second electrical load
6 is of an unsupervised activation type. Accordingly, the second electrical load 6
is preferably remotely activatable through a remote device 10, preferably comprising
one of a remote control or a smartphone, as detailed below.
[0040] As anticipated, the household appliance 1 can comprise a plurality of second electrical
loads 6 of an unsupervised activation type, to perform operations that contribute
to the same household appliance function or to different household appliance functions.
[0041] For example, in the preferred embodiment, the household appliance 1 comprises, as
a second electrical load 6, one or more of a motor of a suction hood 30 and a heating
element of an oven 40, illustrated in figures 2 and 3.
[0042] The preferred embodiment in particular shown in figure 3 concerns a household appliance
1 that performs the triple function of hob, oven and suction hood, where the sole
function of the hob is of the supervised activation type.
[0043] The household appliance 1 further comprises a main switch 7, manually operable by
a user and not operable, electrically controllable remotely.
[0044] The main switch 7 is configured to switch between a switched-on state, in which the
supply of the first electrical load 5 is enabled, and a switched-off state, in which
the supply of the first electrical load 5 is disabled. It follows that a first electrical
load 5 with supervised action made according to the present description meets the
regulations in force for supervised activation thanks to the presence of a switch
adapted to allow its activation only in the switched-on state that can be operated
manually by the user.
[0045] Note that a single main switch 7 can also enable and disable the supply of further
first electrical loads 5 of the household appliance 1.
[0046] Alternatively, the household appliance 1 may comprise several switches 7 for respective
first electrical loads 5 with supervised activation. In the following of the present
description, reference will be made to the preferred embodiment of a single main switch
7, without however any loss of generality.
[0047] Preferably, the main switch 7 is not configured to disable the supply of the second
electrical load 6 or, possibly, of the plurality of second electrical loads 6.
[0048] Always preferably, the household appliance 1 does not have other switches, manually
operable by a user and not electronically remotely operable, which are configured
to enable and disable the supply of one or more second electrical loads. Advantageously,
the second electrical load 6 is of an unsupervised activation type and, therefore,
can be activated remotely.
[0049] The household appliance 1 also comprises an electronic controller 8 electrically
connected or in signal communication to the first power supply device 3 and to the
second power supply device 4. Preferably, the electronic controller 8 is electrically
powered at least by the second power supply device 4.
[0050] The electronic controller 8 is configured to command activation and deactivation
of the first electrical load 5. In addition, the electronic controller 8 is configured
to control the electrical supply of the first electrical load 5 by the first power
supply device 3. In more detail, to activate and deactivate the first electrical load
5 it is not enough that the main switch 7 is in the switched-on state, but it is necessary
to provide an additional command from the electronic controller 8 to command its activation
and deactivation. Therefore, it should be noted that there are operating conditions
in which the main switch 7 is in the switched-on state but the first load 5 is deactivated,
that is, not powered.
[0051] In other words, the main switch 7 in the switched-on state ensures the electrical
continuity between the first power supply device 3 and the first electrical load 5,
but the actual control of the power supplied to the first electrical load 5 by the
first power supply device 3 is carried out by the electronic controller 8.
[0052] Therefore, the main switch 7 and the electronic controller 8 are configured to realize
three distinct configurations of the first electrical load 5, and in particular:
- a configuration in which the main switch 7 disables the supply of the first load 5,
- a configuration in which the main switch 7 enables the supply of the first load 5
and the first load is active (as activated by the electronic controller 8), and
- a configuration in which the main switch 7 enables the supply of the first load 5
but the first load is deactivated (as deactivated by the electronic controller 8).
[0053] For example, where the first power supply device 3 comprises at least one converter
including controllable switches, the control of the supply of the first electrical
load 5 by the first power supply device 3 takes place by setting and transmitting
control signals for the switches according to predetermined times and alternations.
It should be noted that in the absence of control signals the switches can remain
in a non-conductive state, with the consequence that the first electrical load 5 is
not powered.
[0054] In accordance with the preferred embodiment of the invention, the electronic controller
8 is configured to receive as input a first local activation signal and a first local
deactivation signal manually set, i.e. actuated by the hand of a user. For this purpose,
preferably the controller 8 includes a user interface 9 for inputting control signals
and optionally outputting status messages. Optionally, the main switch 7 is integrated
into the user interface 9 of the electronic controller 8.
[0055] Note that the electronic controller 8 is also configured to command the activation
and deactivation of the first electrical load 5 in response to the first local activation
signal and the first local deactivation signal respectively, at least in an operating
condition in which the supply of the first electrical load 5 is enabled by the main
switch 7. It is emphasised that the local deactivation signal does not bring the main
switch 7 to the switched-off state. However, it is not excluded that, based on different
contingent situations, there may be operating conditions in which, upon receipt of
the first local activation signal, although the supply of the first electrical load
5 is enabled by the main switch 7, the electronic controller 8 prevents the activation
of the first electrical load 5.
[0056] Note that, to ensure the safety of the user, the electronic controller 8 may command
the activation and deactivation of the first electrical load 5 only if the supply
of the first electrical load 5 is enabled by the main switch 7. In this manner, when
the supply of the first electrical load 5 is disabled by the main switch 7, the electronic
controller 8 is unable to command the activation of the first electrical load 5.
[0057] The electronic controller 8 is also configured to receive a remote activation signal
and a remote deactivation signal from the remote device 10.
[0058] The electronic controller 8 is further configured to command activation and deactivation
of the second electrical load 6. In addition, the electronic controller 8 is configured
to control the supply of the second electrical load 6 by the second power supply device
4 in response to the remote activation and deactivation signals, at least in an operating
condition in which the main switch 7 is in the switched-off state, and preferably
also in at least one operating condition in which the main switch 7 is in the switched-on
state.
[0059] It should therefore be noted that the electronic controller 8 is capable of activating
and deactivating the second electrical load 6 regardless of the state of the main
switch 7.
[0060] The control of the second power supply device 4 can be carried out similarly to that
already described for the first power supply device 3, by sending control signals
to the switches of a converter.
[0061] Preferably, the electronic controller 8 comprises a communication module, not illustrated,
configured to connect to an internet network with TCP/IP protocol or the like and/or
to receive and transmit data by wireless radio frequency communication, for example
Bluetooth, Wi-Fi, ZigBee, or the like.
[0062] It should be noted that the remote device 10 is also equipped with a transmitter
receiver module to establish a signal communication with the electronic controller
8 by means of wireless signals, for example Wi-Fi, Bluetooth or ZigBee.
[0063] In accordance with the preferred embodiment of the invention, the electronic controller
8 is configured to receive in input, for example through the user interface 9, a second
local activation signal and a second local deactivation signal by means of a manual
user operation.
[0064] Preferably, the electronic controller 8 is configured to activate and deactivate
the second electrical load 6 in response to the second local activation signal and
the second local deactivation signal, respectively, in at least one operating condition.
In different embodiments, this may be enabled when the main switch 7 is in the switched-on
state, the switched-off state, or both states.
[0065] Note that the electronic controller 8 is configured to activate the second electrical
load 6 independently of the first load 5. Thus, even in the case that the supply of
the first electrical load 5 is disabled by the main switch 7 in the switched-off state,
the controller can still activate the second electrical load 6 according to the second
local activation signal or the remote activation signal.
[0066] In accordance with the preferred embodiment, the electronic controller 8 is configured
to launch and terminate a remote-control mode and a local control mode, which can
be mutually by-passed.
[0067] In detail, in the remote-control mode, the electronic controller 8 is configured
to disable at least the second local activation signal. Preferably the electronic
controller 8 is configured to disable both the first and second local activation signal.
Such signals may, for example, be received but rejected, or the user interface 9 may
prevent input of such signals.
[0068] In further detail, in the local control mode, the electronic controller 8 is configured
to disable the remote activation signal, and to command and control the supply of
the first 5 and/or second electrical load 6 in response to the first and second local
activation signals, respectively.
[0069] It should be noted that the mutual by-passing of the remote-control mode and the
local control mode makes it possible not to overlap two commands received from the
manual mode and the remote mode, which could come from different users, one unaware
of the other's commands.
[0070] According to one aspect of the invention, the electronic controller 8 is configured
to generate status signals selectively indicative of the execution of the local activation
mode and the remote activation mode, which can be displayed on the user interface
9 and/or on the remote device 10, so as to inform the user of the type of commands
enabled and disabled.
[0071] According to one embodiment of the invention, the electronic controller 8 is configured
to also launch and terminate a basic control mode.
[0072] Preferably, the electronic controller 8 is configured, when it is in the basic control
mode and receives the first and/or second local activation signal, to switch to the
local control mode and execute a first and/or second household appliance program by
means of the first 5 and/or second electrical load 6.
[0073] Always preferably, the electronic controller 8 is configured, when it is in the basic
control mode and receives the remote activation signal, to switch to the remote-control
mode and execute a second household appliance program by means of the second electrical
load 6.
[0074] In addition, the electronic controller 8 is configured to return to the basic control
mode at the conclusion of the first and/or second household appliance program. Therefore,
starting from the basic control mode, both remote and local controls are allowed,
based on which is received first and the state of the main switch 7. Upon receipt
of a local or remote command, the household appliance 1 becomes unavailable to the
other control mode until the received commands are completely executed.
[0075] Some possible implementations of the main switch 7 for enabling and disabling the
supply of the first electrical load 5 by the first power supply device 3 are now described.
[0076] In accordance with a first embodiment, illustrated in figure 1, the main switch 7
is configured to connect and disconnect the electronic controller 8 and the first
power supply device 3 to each other. In this way, the first power supply device 3
is configured to substantially continuously receive electrical current from the electrical
connector 2 but cannot be activated by the electronic controller 8 to supply the first
electrical load 5 when the main switch 7 is in the switched-off state. In particular,
the converter of the first power supply device 3 is not reachable by control signals
for its switches, and therefore these remain in a non-conductive state, and do not
power the first electrical load 5.
[0077] In accordance with a second embodiment, not shown, the main switch 7 is configured
to connect and disconnect the first power supply device 3 and the electrical connector
2 to each other, so as to prevent the transfer of current from the electrical connector
2 to the first power supply device 3 and consequently prevent the activation of the
first electrical load 5 when the main switch 7 is in the switched-off state.
[0078] According to a third embodiment, not shown, the main switch 7 is configured to connect
and disconnect the first electrical load 5 and the first power supply device 3 to
each other. In this way, the first power supply device 3 is configured to substantially
continuously receive electrical current from the electrical connector 2 and is activatable
by the electronic controller 8, but the first electrical load 5 is not activatable
by the first power supply device 3 when the main switch 7 is in the switched-off state.
[0079] In accordance with the preferred embodiment of the invention, the household appliance
1 comprises a hob 20, illustrated in figures 2 and 3, comprising the first electrical
load 5 or the plurality of first electrical loads 5, and one or more of a suction
hood 30, for example a downdraft hood, and an oven 40 comprising the second electrical
load 6 or the plurality of second electrical loads 6.
[0080] Optionally, the household appliance 1 allows more than two household appliance functions
to be combined, comprising in addition to the hob, both the exhaust hood and the oven,
as illustrated in figure 3, each comprising a respective second electrical load 6.
[0081] According to no embodiment of the invention, illustrated in figure 3, the household
appliance 1 comprises a functional unit 50, located below the hob, which comprises
one or more of the suction hood 30 and the oven 40.
[0082] According to one aspect of the invention, the first power supply device 3 and the
second power supply device 4 are mounted to the functional unit 50.
[0083] According to the same aspect of the invention, the electronic controller 8 is mounted
to the functional unit.
[0084] It should be noted that the multi-function household appliance according to the present
description allows the compactness of the household appliance itself to be guaranteed,
without however detracting from the convenience of use for the user. In fact, while
complying with the regulations in force for a supervised-action electrical load, thus
ensuring the safety of the supervised functions when the main switch is in the switched-off
state, the household appliance of the present invention still allows the unsupervised
functions of the household appliance to be commanded, without losing functionality.
[0085] Advantageously, this allows, by way of example, the oven 40 and/or the suction hood
30 to be activated locally or remotely even when the supply to the hob 20 is disabled
by means of the main switch 7.
[0086] Obviously, a person skilled in the art will be able to make numerous equivalent modifications
to the variants set forth above, without thereby departing from the scope of protection
as defined by the appended claims.
1. Multi-function household appliance (1), comprising:
- an electrical connector (2) connectable to an electrical network,
- a first power supply device (3) connected to the electrical connector (2),
- a first electrical load (5), connected to the first power supply device (3) and
configured to perform a first household appliance function,
- a main switch (7), manually operable by a user and not electronically operable remotely,
the main switch (7) being configured to switch between a switched-on state, in which
the supply of the first electrical load (5) is enabled, and a switched-off state,
in which the supply of the first electrical load (5) is disabled,
- an electronic controller (8), connected to the first power supply device (3) and
configured to command the activation and deactivation of the first electrical load
(5) and control the electrical supply thereof by the first power supply device (3),
the electronic controller (8) being adapted to command the activation and deactivation
of the first electrical load (5) only when the main switch (7) is in the switched-on
state,
- a second electrical load (6), configured to perform a second household appliance
function,
characterised by comprising:
- a second power supply device (4) connected to the electrical connector (2), the
second electrical load (6) and the electronic controller (8) being connected to the
second power supply device (4),
- said electronic controller (8) being configured to receive a remote activation signal
and a remote deactivation signal from a remote device (10), and to command the activation
and the deactivation of the second electrical load (6) and to control the electrical
supply thereof by the second power supply device (4) in response to the remote activation
and deactivation signals, at least in an operating condition in which the main switch
(7) is in the switched-off state.
2. Household appliance (1) according to claim 1, wherein the main switch (7) and the
electronic controller (8) are configured to realize a configuration in which the main
switch (7) disables the supply of the first load (5), a configuration in which the
main switch (7) enables the supply of the first load (5) and the first load (5) is
active, and a configuration in which the main switch (7) enables the supply of the
first load (5) but the first load (5) is deactivated.
3. Household appliance (1) according to claim 1 or 2, wherein:
- said first electrical load (5) represents a function of the household appliance
of the supervised activation type, and
- said second electrical load (6) represents a function of the household appliance
of the unsupervised activation type.
4. Household appliance (1) according to any one of claims 1 to 3, wherein:
- the electronic controller (8) is configured to receive a first and a second local
activation signal as input, said input being activated by a user,
- the electronic controller (8) is configured to command the activation of the first
electrical load (5) in response to the first local activation signal, at least in
an operating condition in which the supply of the first electrical load (5) is enabled
by the main switch (7),
- the electronic controller (8) is configured to command the activation of the second
electrical load (6) in response to the second local activation signal, in at least
one operating condition.
5. Household appliance (1) according to claim 4, wherein:
- the electronic controller (8) is configured to launch and terminate a remote-control
mode and a local control mode, which can be mutually by-passed,
- in the remote-control mode, the electronic controller (8) is configured to disable
at least the second local activation signal, and
- in the local control mode, the electronic controller (8) is configured to disable
the remote activation signal.
6. Household appliance (1) according to claim 5, wherein:
- the electronic controller (8) is configured to also launch and terminate a basic
control mode,
- the electronic controller (8) is configured, when it is in the basic control mode
and receives the first and/or second local activation signal, to switch to the local
control mode and execute a first and/or second household appliance program by means
of the first (5) and/or second electrical load (6),
- the electronic controller (8) is configured, when it is in the basic control mode
and receives the remote activation signal, to switch to the remote-control mode and
execute a second household appliance program by means of the second electrical load
(6),
- the electronic controller (8) is configured to return to the basic control mode
at the conclusion of the first and/or second household appliance program.
7. Household appliance (1) according to any one of claims 1 to 6, wherein the main switch
(7) is configured to connect and disconnect to each other:
- the first power supply device (3) and the electrical connector (2), and/or
- the electronic controller (8) and the first power supply device (3), and/or
- the first electrical load (5) and the first power supply device (3).
8. Household appliance (1) according to any one of claims 1 to 7, wherein the main switch
(7) is not configured to disable the supply of the second electrical load (6), preferably
the household appliance (1) being without other switches, manually operable by a user
and not electronically operable remotely, which are configured to enable and disable
the supply of the second electrical load (6).
9. Household appliance (1) according to any one of claims 1 to 8, wherein each of the
first and second power supply device (3, 4) comprises a transformer and an electrical
converter.
10. Household appliance (1) according to any one of claims 1 to 9, wherein:
- the first electrical load (5) comprises a heating element of a hob (20), and
- preferably, the second electrical load (6) comprises one or more of a motor of a
suction hood (30) and a heating element of an oven (40).
11. Household appliance (1) according to claim 10, comprising:
- a hob (20) with a plurality of heating elements,
- a functional unit (50) below the hob (20), comprising one or more of a suction hood
(30) and an oven (40),
wherein the first (3) and second power supply devices (4) and the electronic controller
(8) are mounted to the functional unit (50).