CN111743483B

CN111743483B - Dishwasher with optical device and illumination device

Info

Publication number: CN111743483B
Application number: CN202010228727.0A
Authority: CN
Inventors: L·瑟尔吉
Original assignee: Candy SpA
Current assignee: Candy SpA
Priority date: 2019-03-27
Filing date: 2020-03-27
Publication date: 2024-03-29
Anticipated expiration: 2040-03-27
Also published as: EP3725208B1; RU2020111680A; ES2901728T3; IT201900004605A1; EP3725208A1; CN111743483A

Abstract

The present invention relates to a dish washer, comprising: a pump connectable to the main pipe water inlet to draw water from the main pipe; a washing zone in fluid communication with the pump, the washing zone defined by a plurality of walls; a door configured to switch between a closed configuration and an open configuration; one or more illumination, disinfection and image acquisition complexes comprising: an illumination device facing the washing zone and having a first light source configured to emit radiation in the visible spectrum and a second light source configured to emit radiation in the ultraviolet spectrum; an optical device facing the washing zone and configured to acquire a digital image of the washing zone; the dishwasher includes a control unit configured to be in signal communication with one or more of the illumination, disinfection and image acquisition complexes to control the complexes. One or more of the plurality of walls of the washing zone include a seat within the thickness of the wall configured to receive one or more illumination, disinfection, and image acquisition complexes.

Description

Dishwasher with optical device and illumination device

Technical Field

The invention relates to a dishwasher with an optical device provided with an integrated lighting device.

The dishwasher according to the present invention is effectively used in a home environment, but may also be used in an environment such as a bar or a restaurant.

Background

State of the art

Dish washers provided with optical means such as cameras, cameras or video cameras are known in the art. For example, documents WO2016008699 and US 2012/013092 describe the above-mentioned dishwasher.

These optical means are arranged in a fixed or movable position with respect to the washing zone to check the load of the dishes or the cleanliness of the dishes.

Using the optical means, the washing program can be selected based on the conditions of the load of the dishes.

Documents DE 10 2009 023252 A1, WO 2019/015996 A1, US 2012/138092 A1, DE 10 2007 022572 A1 and DE 102 56 A1 also show dishwashers provided with optical devices such as cameras, cameras or video cameras.

In particular, documents DE 10 2009 023252 A1, WO 2019/015996 A1, US 2012/138092 A1 show a dishwasher with an optical device (camera or video camera) and an illumination device paired with the optical device, which allows the optical device to acquire images.

Document DE 10 2007 022572 A1 shows a dishwasher with ultraviolet lamps or LEDs for disinfecting washing tanks.

Document DE 102 56 A1 shows a dishwasher comprising a light bulb designed to indicate the state of a door.

The control unit is in signal communication with these optical devices and allows a user to manage or modify the operating functions of the dishwasher.

Dirt and residue accumulated during the loading and washing steps is collected by the filter. The filter is located at the bottom of the washing zone so as to be able to filter the water during the washing cycle in order to collect and retain any dirt and food deposits.

Another function of the filter is to prevent residues of food and/or other objects from being able to be introduced into the washing and draining circuit of the product.

The filter needs to be cleaned periodically to remove the remaining residue.

Problems of the prior art

Disadvantageously, periodic cleaning of the filter is not sufficient to completely remove accumulated dirt, as it can only remove the largest residues. The micro-deposits, which are difficult to remove, are thus left inside the filter, resulting in the risk of formation of harmful microorganisms such as bacteria, viruses and moulds. These microorganisms stagnate in the filter and thus contaminate the washing water during each cycle and spread inside the dishwasher and over the dishes. In the case of frequent washing cycles, the proliferation and accumulation of the above pathogenic microorganisms are aggravated, and unpleasant odors are also generated.

In the known dishwasher, there is also the problem of poor visibility of the interior of the dishwasher. Therefore, the operation of putting the dirty dishes into the dishwasher before washing is not easy for the user in the dark or when the environment to which the dishwasher is exposed is not very bright, and it is not easy to observe the washed dishes to check their final state.

Furthermore, in documents DE 10 2009 023252 A1, WO 2019/015996 A1 and US 2012/138092 A1, light sources are described in relation to optical devices to allow images to be acquired.

Instead, only UV sources are mentioned in document DE 10 2007 022572 A1, no camera and no visible light source to illuminate the slot when the door is open.

In DE 102 56 A1, a lighting device is present, but is used to signal whether the door is open, without a camera.

Thus, these prior art documents teach that the optical device with its own light source and the UV source are accommodated in separate and distinct parts of the dishwasher frame. Since the sink must have multiple compartments that will accommodate various components such as optics, light sources, and UV sources, more expensive molds for the sink must be made.

Disclosure of Invention

In this case, the technical purpose underlying the present invention is to propose a dishwasher which obviates the drawbacks of the prior art as described above.

In particular, it is an object of the present invention to provide a dishwasher which is able to allow disinfection of microorganisms which normally accumulate in the washing zone.

Another object of the present invention is to provide a dish washer that can be convenient for a user during the configuration of dishes, making the dishes more visible.

The technical task defined and the aims specified are substantially achieved by a dishwasher: the dishwasher comprises the technical features of one or more of the attached claims.

THE ADVANTAGES OF THE PRESENT INVENTION

The dishwasher solves the technical problem in that it comprises an illumination device capable of illuminating the washing zone with visible or ultraviolet radiation. In particular, visible radiation allows the user to see the cutlery better, while ultraviolet radiation has a bactericidal effect.

Thanks to the illumination device according to the invention, it is possible to illuminate the washing zone with visible radiation to check the condition of the dishes and to load the dishwasher more easily without having to turn on the lamp.

Thanks to the illumination device according to the invention, it is also possible to illuminate the washing zone with ultraviolet radiation to disinfect and sterilize the washing zone and the dishes against accumulated pathogenic microorganisms.

Thanks to the invention, it is possible to have a seat in the wall of the washing tank, inside which a single integrated device is stored, having an optical device and two light sources.

Furthermore, thanks to the invention, a dishwasher can be made in which the same lighting device has a first light source for illuminating the washing tub (during a cycle or when the door is open) and a second light source for disinfection.

Finally, the dishwasher with the optical device and the associated lighting device is simpler and cheaper to produce.

Drawings

Other features and advantages of the invention will become more apparent from the following approximate, but non-limiting, description of a preferred, but not exclusive, embodiment of a dishwasher with optical means and lighting means, as illustrated in the accompanying drawings, in which:

fig. 1 shows a front perspective view of the built-in dishwasher, with some parts removed to better show the other parts;

fig. 2 shows a perspective view of the dishwasher of fig. 1, without showing some of the components of the dishwasher and the cutlery;

fig. 3 shows a detailed view of the washing zone of the dishwasher of fig. 1;

fig. 3A shows a schematic view of a detail of the dishwasher of fig. 1;

FIG. 4 is a cross-section taken along line V-V of FIG. 3;

fig. 5 shows a schematic diagram of the operation of a dishwasher according to the invention.

Detailed Description

Each feature described with reference to a particular embodiment must be considered auxiliary and/or interchangeable with other features described with reference to other embodiments, even if not explicitly highlighted.

Referring to the drawings, reference numeral 1 denotes a dishwasher according to the present invention. The dishwasher 1 may be of the type built into a kitchen unit, for example, and the dishwasher is shown without a finished panel for a better understanding of the interior volume.

The dishwasher 1 comprises a washing zone 2 and a door 3.

The washing zone 2 defines a volume in which the dishes S are arranged.

In the following description, the term cutlery S refers to, for example, a dish, a knife, a glassware, a pot, etc.

The dishwasher 1 identifies a base 1A, the base 1A being generally dedicated to housing the necessary mechanisms/means for performing the main operations of the dishwasher 1.

The washing zone 2 is defined by a plurality of walls such as a bottom wall 2A, side walls 2B and 2C, a top wall 2D and a bottom wall 2E, and identifies an upper portion 2' and a lower portion 2".

The term up/down must be understood in terms of the correct installation and use conditions of the dishwasher 1. In this case, the term upper refers to a portion farther from the base 1A, and the term lower refers to a portion nearer to the base 1A.

The door 3 can be activated by the user by hand and/or with an electric servo and the aim is to close the washing zone 2 hermetically, preventing any loss of washing liquid during the execution of the washing cycle.

In particular, the door 3 is configured to switch between a closed configuration, in which it prevents access to the washing zone 2, and at least an open configuration; in the open configuration, the door allows access to the washing zone 2.

In the dishwasher 1 according to the invention, the door 3 can also be positioned in a further approaching configuration, wherein the door 3 is located in the vicinity of the washing zone 2. In other words, when the door 3 is in the access configuration, the door 3 is open but prevents access to the washing zone 2.

The dishwasher further comprises one or more impellers 5. The impeller 5 is of a type known per se and will therefore not be described. It is worth emphasizing here that one or preferably two impellers may be arranged in the washing zone 2. In particular, a first impeller is placed in the lower region 2' close to the base 1A, and the other impeller is placed in the upper region 2", preferably in the lower part of the upper region.

According to techniques known in the art and therefore not illustrated, respective cutlery holding baskets 21 are provided in the lower region 2' and/or in the upper region 2″ and the cutlery holding basket 21 has the function of accommodating various cutlery S.

The term cutlery holding basket 21 refers to any device and/or accessory dedicated to positioning and therefore suitable for supporting cutlery S.

Such basket and/or accessories must be compatible with the dimensions of the washing zone 2 of the dishwasher 1.

The dishwasher 1 comprises a dispenser 6, the dispenser 6 being snugly (formed) so as to define a suitable volume for containing the product or detergent required to clean the dishes S.

For example, these detergents may be powder, tablet or tablet detergents, or may be liquid/gel detergents.

Such a dispenser 6 may comprise one or more compartments, each for receiving a particular washing product.

According to one aspect, also with reference to fig. 1, the dispenser 6 is located at the door 3 at a predetermined height, in particular at the side facing the washing zone 2. More particularly, the dispenser 6 is housed within the thickness of the door 3.

The dishwasher 1 comprises a pump 12, for example, arranged in a base 1A. According to techniques known to those skilled in the art and therefore not illustrated, the pump 12 may be connected to a mains water inlet (mains water inlet) to draw the water required for the washing cycle from the mains.

The wash zone 2 is in fluid communication with a pump 12. In particular, the task of the pump 12 is to let the water flow into the impeller 5 arranged inside the washing zone.

The dishwasher 1 comprises one or more optical devices 81 facing the washing zone 2. The optical means 81 are designed to acquire a digital image J of the washing zone 2. Such an image J may be a fixed and/or continuous two-dimensional digital image in case of a predetermined shooting speed such as a single frame or a burst of images J or an uninterrupted stream of images J. Advantageously, data can be obtained from the acquired image J in a manner that determines some parameters, such as the load of the dishes S, to optimize the washing cycle and reduce consumption.

The optical device 81 is implemented, for example, as a camera and/or video camera. Such devices are known in the art and will not be described in detail in this specification.

The dishwasher 1 further comprises one or more lighting devices 82. The one or more illumination devices 82 face the washing zone 2 and are configured to illuminate the washing zone 2 with visible or ultraviolet light.

Specifically, each lighting device 82 includes at least:

a first light source 83 configured to emit electromagnetic radiation in the visible spectrum, and/or

A second light source 84 configured to emit electromagnetic radiation in the ultraviolet spectrum.

Advantageously, the washing zone 2 can be illuminated with visible radiation in this way, so that the user observes the cutlery S.

Alternatively or together, it is also possible to illuminate the washing zone 2 with ultraviolet radiation, in order to better clean the dishes S or the washing zone 2 itself.

For example, the first light source 83 comprises one or more LED light sources, each capable of emitting a bright light of visible light in a power range between a few watts and a few tens of watts, preferably in a power range between 5W and 40W.

For example, the second light source 84 is implemented by an LED light source.

Preferably, the second light source 84 is configured to emit ultraviolet radiation in the short ultraviolet band. The radiation has in fact a bactericidal effect. Advantageously, the washing zone 2 can be disinfected against pathogenic microorganisms resulting from the accumulation of dirt of the dishes S, eliminating the unpleasant odours caused by the microorganisms.

It is worth emphasizing that in the dishwasher 1 according to the preferred embodiment it comprises at least one light source 83, 84 associated with the respective optical means 81.

Preferably, the first light source 83 is associated with a respective optical device 81. In particular, the first light source 83 is integrated with the corresponding optical device 81.

In addition, the second light source 84 is adjacent to the first light source 83. The first light source 83 and the second light source 84 together with the optical means 81 form an illumination, disinfection and image acquisition complex 8.

Preferably, the second light source 84 is associated with the first light source 83. In other words, the second light source 84 is integrated with the first light source 83.

Thus, in a preferred embodiment, the complex 8 is a single integrated device, wherein the illumination device 82 comprising the first light source 83 and the second light source 84 integrated together is associated with the optical device 81.

Advantageously, the integration of the lighting means 82 with the optical means 81 allows to optimize the space occupied in the dishwasher 1.

Preferably, the dishwasher according to the present invention comprises two or more complexes 8.

In more detail, each wall 2A, 2B, 2C, 2D and/or 2E of the washing zone 2 can house one or more of the above-mentioned complexes 8 within its thickness. For this purpose, a seat 2F is provided for each complex 8, the seat 2F being obtained in the thickness of one of the four side walls 2A, 2B, 2C, 2D. In this seat 2F, all the electrical and electronic components necessary for the operation of the complex 8 are provided.

The seats 2F define a suitable volume for housing the respective complex 8.

Preferably, to protect the light sources 83, 84 and the optics of the optical device 81 from water, dirt or impact, the complex 8 comprises a cover panel 8A.

In particular, the cover panel 8A is transparent to both visible and ultraviolet light. For example, the cover panel is made of glass, quartz, PMMA or other plastics, or of materials with similar technical properties.

The cover panel 8A is preferably configured to be substantially flush with the surface of the wall 2A, 2B, 2C, 2D or 2E or to protrude slightly from the surface of the wall 2A, 2B, 2C, 2D or 2E.

In the embodiment, it is prescribed that the mount 2F provided with the optical device 81 and the illumination device 82 is configured to be waterproof, for example, by using a sealing technique.

It should be noted that the illumination means 82 have an illumination field 8B, the illumination field 8B allowing illumination of the area of the dishes S and/or the washing zone 2 falling within the illumination field 8B. According to a preferred embodiment, the dishwasher 1 comprises two or more lighting devices 82, the lighting devices 82 being integrated in particular in the respective complex 8 and being positioned in diametrically opposite points of the washing zone 2. Advantageously, the washing zone 2 can be illuminated more effectively.

The dishwasher 1 comprises a control unit 4 arranged, for example, in the thickness of the door 3. The control unit 4 is provided with an electronic card on which there are usual electrical and electronic devices. The control unit 4 is configured to control and monitor the operating functions of the dishwasher 1.

In the context of the present description, the control unit 4 will be divided into a plurality of functional modules. This is done for clarity but does not necessarily reflect the implementation of the control unit 4. A module may actually comprise one or more hardware components and/or one or more software programs. The control unit 4 may be implemented on local hardware, in one or more virtual machines and/or may be distributed over one or more devices connected in a network via a cable or wireless connection.

With particular reference to fig. 5, the control unit 4 comprises a storage module 41 and/or an acquisition module 42 and/or a processing module 43 and/or a starting module 44. The control unit 4 further comprises a series of I/O ports (not shown in the figures) for receiving and outputting data.

At least one cleaning program P is permanently stored in a part of the memory module 41. The cleaning procedure P is the result of a combination of one or more of the following parameters:

-the duration of the washing/drying step;

-the pressure of the wash pump;

-the temperature of the washing and drying steps;

-use of a water softening system;

-the amount of detergent dispensed.

Program P may also include other parameters not shown here for simplicity of illustration. According to the selected cleaning program P, the control unit 4 controls various components suitable for performing the washing cycle.

Furthermore, as will be explained in detail in a later part of the present description, the control unit 4 is arranged to communicate signals with the complex 8, in particular via I/O ports, to control both the optical means 81 and the illumination means 82, thereby controlling the light sources 83 and 84.

In particular, as described above, the acquisition module 42 is designed to receive one or more images J acquired by the optical device 81. The processing module 43 processes the image J to obtain data that is compared with the data pre-stored in the storage module 41. Thus, the start-up module 44 acts on various parameters of the cleaning program P. For example, the start-up module 44 regulates the flow F of the pump 12.

The control unit 4 is also arranged in signal communication with the lighting device 82 for controlling the lighting device 82. Advantageously, a single control unit 4 may be used to control both the optical means 81 and the lighting means 82.

The lighting program L is stored in a part of the memory module 41 of the control unit 4. In more detail, the control unit 4 is configured to send an activation signal a for activating the first light source 83 and/or the second light source 84. The control unit 4 is further configured to send a deactivation signal D for deactivating the first light source 83 and/or the second light source 84, for example after a predetermined time interval has elapsed from the start of activation.

The dishwasher 1 according to the invention comprises a sensor member 11 associated with the door 3 and in signal communication with the control unit 4.

These sensor means 11 are configured to detect the position X and/or the movement M of the door 3.

According to an embodiment, the sensor means 11 comprise a first sensor 111 configured to detect the position X of the door 3 and/or a second sensor 112 configured to detect the movement M of the door 3. The first sensor 111 and the second sensor 112 are configured to send data to the control unit 4.

The first sensor 111 may be, for example, a switch capable of defining an open/closed state of the door 3.

The second sensor 112 may be, for example, a gyroscope or an accelerometer, and is thus configured to detect the movement M of the door 3, for example by a change in the position X and/or the speed of the door 3.

In particular, the sensor member 11 is configured to emit a first signal S1 when the door 3 is switched from the closed configuration to the open configuration. The control unit 4 is configured to receive the first signal S1 from the sensor member 11 and to activate the first light source 83 (i.e. the light source configured to emit visible radiation).

The sensor member 11 is configured to also emit a second signal S2 when the door 3 is in the approaching configuration. The control unit 4 is configured to receive the second signal S2 from the sensor member 11 and deactivate the first light source 83.

Advantageously, when the dishwasher 1 is closed after the washing cycle is completed, and the user approaches the door 3 without closing the door 3, the lamp remains closed.

The sensor member 11 is configured to emit a third signal S3 when the door 3 is in the closed configuration. The control unit 4 is configured to receive the third signal S3 from the sensor member 11 and to activate the second light source 84.

With particular reference to fig. 5, the acquisition module 42 of the control unit 4 is designed to receive the signals S1, S2, S3 emitted by the sensor means 11.

The processing module 43 processes the acquired data by comparing the acquired data with data pre-stored in the storage module 41.

Thus, the activation module 44 is configured to send an activation signal a or a deactivation signal D to the lighting device 83. In particular, the start-up module is configured to: the second light source 84 is turned on if the door 3 is in the closed configuration, the first light source 83 is turned on and/or the second light source 84 is turned off if the door 3 is in the open configuration, and the first light source 83 is turned off if the door 3 is in the approximated configuration.

In one embodiment, the dishwasher 1 according to the present invention may be provided with a plurality of sensors to detect the position X and/or the movement M of the door 3 in order to limit the state of the door 3 in one of an open configuration, a closed configuration or an approaching configuration.

According to a preferred embodiment of the dishwasher 1, the control unit 4 is configured to activate said second light source 84 outside the washing cycle. Advantageously, this allows the washing zone 2 to be sterilised when the dishwasher 1 is empty (i.e. without the cutlery S).

Alternatively, the control unit 4 is configured to activate the second light source 84 during steps before and/or after the washing cycle.

According to an embodiment, the control unit 4 is configured to activate the second light source 84 outside the washing cycle and before and/or after the washing cycle. In this way, the cutlery S, the washing region 2 or both can be sterilized.

The dishwasher 1 comprises a user interface 9, i.e. a command and control interface, by means of which a user can control and manage the operation and functions of the dishwasher 1 itself.

To this end, the user interface 9 is in signal communication with the control unit 4 through its I/O port to receive data processed by the processing module 43 of the control unit itself.

In one embodiment, the user interface 9 is a screen 23 integrated in the dishwasher 1, so that the user can see the screen during normal use thereof and/or when a buzzer (not shown in the drawings) is added.

According to one aspect, referring to fig. 1, the user interface 9 is integrated into the door 3 such that the screen faces the washing zone 2 from the outside.

It is emphasized that the screen 23 of the user interface 9 is configured to display a luminous indication, a text message and/or a single or continuous image J. In particular, the image J that can be displayed on the screen may be an image J of the washing zone 2 and related articles disposed in the washing zone 2 acquired by the optical device 81.

In particular, the screen may be a touch-type (or touch-controllable) screen.

In another embodiment, the user interface 9 comprises one or more analog buttons and/or a combination of analog/digital controls and a screen, for example, touch-sensitive.

The purpose of the buzzer of the user interface 9 is to report any operating conditions or situations to the user by means of an acoustic signal.

In one embodiment, dishwasher 1 includes a radio transceiver device configured to create signal communication with a wired and/or wireless network. For example, the wireless network may be an internet protocol-based network connected through Wi-Fi, or a WPAN (wireless personal area network) based on bluetooth protocol.

In this assumption, the user interface 9 includes a software portion 26 that is installed on a portable device (i.e., transportable or graspable by a user's hand) 22, such as a smart phone, tablet, personal computer or similar instrument, for example.

In other words, the user interface 9 includes both a conventional control interface of the dishwasher 1 and a screen of the portable device 22.

In particular, the portable device 22 includes its own radio transceiver device configured to establish signal communication with the radio transceiver device of the dishwasher 1.

According to one aspect, the portable device 22 is capable of communicating with the control unit 4 of the dishwasher 1, and may also be connected to one or more remote servers 24 via the internet (e.g., a mobile digital network) to perform archiving, saving and/or processing operations on the data on the image J acquired by the optical device 81.

Furthermore, according to an embodiment, the user may create, eliminate or modify other cleaning procedures P and/or lighting procedures L through the user interface 9.

With particular reference to the lighting program L, for example, the user may adjust the lighting time interval, or temporarily deactivate the lighting device 82.

In other words, the portable device 22 is adapted to be connected directly to the dishwasher 1 and to the internet via a mobile data network. Thus, in this case, the system is configured to include the dishwasher 1 and the software portion 26 of the portable device 22 in signal communication with each other via a mobile data network, wi-Fi connection, and/or WPAN.

It is obvious that a person skilled in the art will be able to make many equivalent modifications to the variants described above, without thereby abandoning the scope of protection defined by the appended claims.

Claims

1. A dishwasher (1), comprising:

-a pump (12) connectable to a mains water inlet to draw water from the mains;

-a washing zone (2) in fluid communication with the pump (12), the washing zone (2) being defined by a plurality of walls (2A, 2B, 2C, 2D, 2E);

-a door (3) configured to switch between a closed configuration in which it prevents access to the washing zone (2) and at least one open configuration in which it allows access to the washing zone (2);

-one or more integrated illumination, disinfection and image acquisition complexes (8), comprising:

-an illumination device (82) facing the washing zone (2) and having a first light source (83) configured to emit radiation in the visible spectrum and a second light source (84) configured to emit radiation in the ultraviolet spectrum;

-an optical device (81) facing the washing zone (2) and configured to acquire a digital image (J) of the washing zone (2);

a control unit (4) arranged in signal communication with one or more integrated illumination, disinfection and image acquisition complexes (8) for controlling the one or more integrated illumination, disinfection and image acquisition complexes (8),

characterized in that one or more of the walls (2A, 2B, 2C, 2D, 2E) of the washing zone (2) comprise, within the thickness of said wall, a seat (2F) configured to house one or more of said integrated lighting, disinfection and image acquisition complexes (8).

2. Dishwasher (1) according to claim 1, characterized in that the first light source (83) is associated with a respective optical device (81), and the second light source (84) is adjacent to and integrated with the first light source (83).

3. The dishwasher (1) according to claim 1, characterized in that the control unit (4) is configured to send an activation signal (a) for activating the first light source (83) and/or the second light source (84), the control unit (4) being further configured to send a deactivation signal (D) for deactivating the first light source (83) and/or the second light source (84) after a predetermined time interval has elapsed from the start of activation.

4. Dishwasher (1) according to claim 1, characterized in that it further comprises a sensor member (11) in signal communication with the control unit (4) and associated with the door (3) for detecting the position (X) and/or the movement (M) of the door (3), the sensor member (11) being configured to emit a first signal (S1) when the door (3) is switched from the closed configuration to the open configuration, the control unit (4) being configured to receive the first signal (S1) from the sensor member (11) and to activate the first light source (83).

5. Dishwasher (1) according to claim 4, characterized in that the door (3) can be positioned in a proximity configuration close to the washing zone (2), the sensor means (11) being configured to emit a second signal (S2) when the door (3) is in the proximity configuration.

6. Dishwasher (1) according to claim 5, characterized in that the control unit (4) is configured to receive the second signal (S2) from the sensor means (11) and to deactivate the first light source (83).

7. Dishwasher (1) according to claim 4, characterized in that the sensor means (11) are configured to detect a change in the position and/or movement speed of the door (3).

8. Dishwasher (1) according to claim 1, characterized in that the control unit (4) is configured to activate the second light source (84) when the door (3) is in the closed configuration.

9. Dishwasher (1) according to claim 1, characterized in that the control unit (4) is configured to activate the second light source (84) before and/or outside a washing cycle when the door (3) is in the closed configuration.