Dishwashers and dishwasher treatment cartridges

Abstract

The dishwasher (1) comprises a washing section (110) having one or more dispensing devices (111a-d), a docking section (120) for docking one or more cartridges (2) for one or more treatment agents, and one or more connection sections (130) for directly or indirectly connecting a corresponding cartridge (2) docked to the docking section (120) to the one or more dispensing devices (111a-d) or to a washing tank (180) or a boiler (190) of the dishwasher (1) for using the one or more treatment agents for one or more washing processes of the dishwasher (1).

Description

Technical Field

[0001] The present invention relates to a treatment agent cartridge for a dishwasher, a system including a plurality of cartridges, a dishwasher, and a system including a dishwasher and one or more cartridges.

Background Art

[0002] Dishwashers generally require one or more treatment agents, such as detergents, rinse agents, and / or enzyme solutions, for one or more washing processes. Refilling the treatment agent poses a danger to the user since the user can directly touch the treatment agent at this step, which can cause skin and eye injuries and pose a health risk.

[0003] Furthermore, multiple treatment agents used simultaneously in one or more washing processes, such as detergents and rinse agents, are prone to being mixed up, which deteriorates the quality of one or more washing processes. If the detergent and the rinse agent are mixed, chemical precipitates may occur and block the dosing hose, which can reduce the service life of the dishwasher or cause malfunction.

[0004] Particularly, commercial dishwashers consume a large amount of treatment agents in a short period. For this reason, large storage containers or tanks are used, especially for the continuous operation of treatment agents in the commercial sector. In the case of a business that particularly washes dishes on a large scale, the amount of treatment agent required shortens the lifespan or the service life of the storage pack, so smaller or lighter containers have not gained popularity for economic reasons.

[0005] With the help of a dosing lance, the treatment agent is directly removed from the storage container or tank and used in the washing process of one or more dishwashers. If this arrangement is impossible due to space constraints, a dishwasher with an integrated storage tank is used as another method, and the user has to fill the treatment agent from the storage container.

[0006] However, the storage containers for today's commercial dishwashers are heavy and cumbersome due to their size. Furthermore, transporting these containers typically requires the handling of hazardous materials. The size of the containers makes the risk particularly high, as leaks or unintentional releases of processing agents during transport could cause significant damage to people, the environment, and resources. For this reason, special safety measures must be taken, which increases transportation costs.

[0007] In small-scale dishwashing businesses, or "small-scale dishwashing companies," the lifespan of large storage containers is also extended. As a result, the quality of the treatment agent deteriorates, and the treatment agent becomes difficult to use. In particular, with solid treatment agents, solid treatment agents are usually hygroscopic, and water accumulates in the storage container, for example. Temperature fluctuations between the start and stop times of the dishwasher can cause the chemicals in the treatment agent to dissolve and then re-precipitate, causing troublesome precipitates that clog the dishwasher's pump and hoses. Ultimately, the solubility limits of some substances are exceeded by the evaporation of the solvent in the treatment agent, limiting the usability of the treatment agent.

[0008] Furthermore, large storage containers or containers make it difficult to fill the dishwasher with processing solution. Because the container is under strain and difficult for the user to aim, the dishwasher chemicals are prone to spilling. In particular, if the container is still full, for example, closing the container can cause inconsistent flow behavior of the processing solution. This can lead to splashing and spilling of the processing solution, posing a threat to the user's health. [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] The object of the present invention is to provide one or more cartridges for one or more processing agents, a dishwasher, and a system comprising the dishwasher and one or more cartridges, which improve the ease of use and / or safety of replenishing processing agents in a dishwasher, taking into consideration a desired application. [Means for solving the problem]

[0010] This problem is solved by using the dishwasher according to claim 1, the cartridge system according to claim 13, the dishwashing system according to claim 15, and the cartridge means according to claim 18. Claims 2 to 12 relate to a particularly preferred embodiment of the dishwasher according to claim 1, claim 14 relates to a particularly preferred embodiment of the cartridge system according to claim 13, and claims 16 and 17 relate to a particularly preferred embodiment of the dishwashing system according to claim 15.

[0011] According to the present invention, a dishwasher comprises a washing section or washing container having one or more dispensing devices, a docking section for docking one or more cartridges for one or more processing agents, and one or more connection sections, each for directly or indirectly connecting a corresponding cartridge docked to the docking section to one or more dispensing devices, or to a washing tank or boiler of the dishwasher, for using one or more processing agents for one or more washing processes of the dishwasher.

[0012] In the foregoing, “directly or indirectly connecting” a cartridge to one or more dispensing devices, or a cleaning tank or boiler means that one or more pumps, valves, sensors, in particular level sensors, or other components such as tanks or reservoirs may be connected to one or more dispensing devices, or a cleaning tank or boiler.

[0013] A cartridge is also called a sealed treatment reservoir. Each of one or more cartridges may be a disposable cartridge or a refillable cartridge. A cartridge is designed as a tightly fitting, robust container, in which case it is preferable that the cartridge has a vent valve or a breathable membrane to compensate for volume changes within the cartridge due to treatment consumption. Alternatively, the cartridge is designed as a flexible bag or "bag-in-box" system, in which case the vent valve or breathable membrane may be omitted, as volume changes within the cartridge can be compensated for by the contraction of the cartridge itself. In addition to the treatment reservoir, a cartridge may also include other components, such as coded closure components or integrated intelligence, which will be discussed later.

[0014] Each of the one or more treatment agents may be a liquid, a highly concentrated solution, i.e., a high-viscosity liquid, a gel, a powder, or a solid. Treatment agents are also called detergents, dishwashing detergents, dishwashing chemicals, or dishwashing chemistry. Examples of treatment agents are cleaning agents, rinses, and enzyme solutions. The one or more treatment agents in each cartridge may be the same or different from one another. For example, one cartridge may contain a cleaning agent, and another cartridge may contain a rinse. In this case, the treatment agents in one or more cartridges may be used simultaneously in one or more washing processes. Alternatively, two or more cartridges may each contain the same treatment agent. In this case, the two or more cartridges may be used sequentially, and at least one cartridge may be used as a backup cartridge connected to one or more dispensing devices, or washing tanks or boilers by the corresponding connector only when another cartridge has already been completely, or as completely, emptied. Parallel use of two or more cartridges also helps to extend the cartridge replacement interval. This contributes to ease of use and minimizes hazards. Ultimately, a single cartridge can contain multiple different treatment agents in each area separated by walls within the cartridge. When such a cartridge is connected to one or more dispensing devices, washing tanks, or boilers by corresponding connectors, multiple treatment agents from the cartridge may be used simultaneously in one or more washing processes.

[0015] The docking section may comprise a fastening section for attaching one or more cartridges to a dishwasher, and / or a positioning section for positioning one or more cartridges relative to the dishwasher. In particular, the docking section may constitute a machine-side closing component, and the cartridge may constitute a cartridge-side closing component. The machine-side closing component and the cartridge-side closing component can form a closing component to which the cartridge is positioned relative to the docking section and / or attached to the docking section. In particular, the closing may be a screw closing, a fastening closing, another mechanical closing, or an electromechanical closing. Furthermore, the docking section may be designed as a retaining section for holding one or more cartridges. In particular, the docking section may be designed as a cartridge compartment into which one or more cartridges are inserted, and the docking section surrounds the inserted one or more cartridges from one or more sides via the respective walls of the cartridge compartment.

[0016] One or more connectors may be designed as pins that penetrate the membrane of a cartridge corresponding to one or more dispensing devices, washing tanks, or boilers, or actuate a check valve on the corresponding cartridge to connect the corresponding cartridge. When a cartridge is connected to one or more dispensing devices by the corresponding connectors, the treatment agent may flow from the cartridge to one or more dispensing devices via a supply line, for example, and discharged to the washing section via one or more dispensing devices used in the washing process of one or more dishwashers. When a cartridge is connected to a washing tank or boiler by the corresponding connectors, the treatment agent from the cartridge may enter the washing tank or boiler via a supply line, for example, to be available for use in or used in the washing process of one or more dishwashers. Alternatively, the treatment liquid may first enter a reservoir and then be discharged from the reservoir to one or more dispensing devices, washing tanks, or boilers, as will be described in more detail later. One or more connectors may be integrated into the docking section, or they may be designed separately from the docking section. When a cartridge is docked to a docking unit, it may be automatically connected to one or more dispensing devices, cleaning tanks, or boilers by corresponding connectors. Alternatively, the cartridge may be docked to a docking unit without being automatically connected to one or more dispensing devices, cleaning tanks, or boilers, in which case the cartridge docked to the docking unit may be connected to one or more dispensing devices, cleaning tanks, or boilers only by a different user operation, for example, as will be explained in more detail later, by corresponding connectors.

[0017] The dishwasher according to the present invention has the advantage that the necessary treatment agents for one or more washing processes can be easily replenished by docking and connecting with a new cartridge or by replacing the cartridge, without the user having direct contact with the treatment agents. This reduces the opportunity to endanger the user's health and improves user convenience.

[0018] Furthermore, no additional devices, such as dispensing lances, are required to replenish the treatment agent. This allows for faster and easier replenishment of the treatment agent and reduces the effort required from the user, thereby improving user convenience.

[0019] Furthermore, compared to conventional storage containers, the cartridge according to the present invention is held in a dishwasher, thus taking up less space and offering even greater convenience.

[0020] Ultimately, cartridges can be designed with flexibility in shape and size, making them smaller and lighter than conventional storage containers, and easier for users to lift. This also makes it easier to adjust the amount of treatment agent, especially for small-scale dishwashing businesses and "small-scale dishwashing companies." Furthermore, as will be explained in more detail later, if the maximum amount of treatment agent that a cartridge can hold is within the "limited quantity" regulations for the transport of hazardous substances, it can also reduce the effort and cost of transporting the cartridges.

[0021] In short, the dishwasher according to the present invention makes replenishment of the treatment agent safer (for example, transferring the treatment agent from a storage container is replaced by replacing a cartridge, thus avoiding direct contact of the user with the treatment agent), faster (because heavy, unwieldy storage containers are replaced by lighter, easier-to-handle cartridges, eliminating the need for additional equipment or replenishment devices), and cheaper (because the transportation route to the customer is cheaper, for example, "limited quantity" rules and "small-scale dishwashing businesses" can better estimate the amount of chemicals needed for the dishwasher, so initial storage containers are not left unused). The flexibility of machine operation is also increased by using different treatment agents in smaller packaging units without completely using up different treatment agents.

[0022] A preferred embodiment of the dishwasher according to the present invention comprises a docking section comprising a first docking section for docking with a first cartridge and a second docking section for docking with a second cartridge, wherein the first cartridge is not dockable with the second docking section, and / or the second cartridge is not dockable with the first docking section. The first and second docking sections may each be subsections of an integrated docking section, or the first and second docking sections may be separately molded parts of the dishwasher.

[0023] In particular, the first docking section may be equipped with a closing component on the first machine side, and the second docking section may be equipped with a closing component on the second machine side. Furthermore, the first cartridge may be equipped with a closing component on the first cartridge side, and the second cartridge may be equipped with a closing component on the second cartridge side. As described above, the closing component on the first machine side and the closing component on the first cartridge side can form a first closing section, while the closing component on the second machine side and the closing component on the second cartridge side can form a second closing section. It is preferable that the first closing section and the second closing section are designed to be different so that the closing section on the first cartridge side cannot be attached to the closing component on the second machine side, and / or the closing component on the second cartridge side cannot be attached to the closing component on the first machine side. In this case, the first closing section and the second closing section may be called coded closing sections, and both the machine-side closing component and the cartridge-side closing component of the first closing section and the second closing section may be designed as coded closing components. In other words, the first docking section and the second docking section may each be designed for the precise, but preferably, but not exclusively, characteristic positioning and / or mounting of the corresponding cartridge.

[0024] Furthermore, or alternatively, since the first docking portion and the second docking portion are of different sizes or shapes respectively, only a cartridge of a corresponding size or shape can be docked to each docking portion. In particular, the first docking portion and the second docking portion are each designed as a separate holding portion for holding a corresponding cartridge. Specifically, each docking portion is designed as a separate cartridge compartment into which only a cartridge of an appropriate size or shape can be inserted.

[0025] Furthermore, or alternatively, the first docking portion and the second docking portion may each have a different color coding corresponding to the corresponding color coding of the cartridges. For example, the docking portion marked with the first color is provided or may be suitable for docking to the cartridge marked with the first color, or the docking portion marked with the second cartridge is provided or may be suitable for docking to the cartridge marked with the second color. Since the colors of the docking locations and the cartridges are different, the user can easily assign the cartridges to each docking portion even without language skills.

[0026] The preferred embodiments described above are particularly preferred because they prevent confusion between different cartridges and confusion between different treatment agents for the dishwasher by the user. This improves the user-friendliness and safety of the user with respect to the replenishment of the treatment agent.

[0027] Furthermore, the dishwasher may include a first connection for connecting a first cartridge docked to a first docking unit to one or more dispensing devices, washing tanks, or boilers, and a second connection for connecting a second cartridge docked to a second docking unit to one or more dispensing devices, washing tanks, or boilers. The first and second connection units may be designed separately, and may connect the first and second cartridges to one or more dispensing devices, washing tanks, or boilers independently of each other. In this way, the treatment agents from the first and second cartridges may be used independently of each other in one or more washing processes, depending on the user's desired settings. Alternatively, the first and second connection units may be connected or coupled to each other so that they can be connected to only one or more dispensing devices, washing tanks, or boilers at the same time. In this way, the simultaneous use of the two treatment agents can yield optimal washing results and simplify the use of the dishwasher.

[0028] In a particularly preferred embodiment, the first docking section comprises a first identification and fastening section. The first identification and fastening section is designed to engage with a first mating fastening section of the first cartridge for identifying the first cartridge. The first identification and fastening section is further designed to engage with a first mating fastening section of the first cartridge for docking the identified first cartridge to the first docking section. In particular, the first identification and fastening section may be a component of the first closing part on the machine side. Similarly, the second docking section comprises a second identification and fastening section. The second identification and fastening section is designed to engage with a second mating fastening section of the second cartridge for identifying the second cartridge. The second identification and fastening section is further designed to engage with a fourth mating fastening section of the second cartridge for docking the identified second cartridge to the second docking section. In particular, the second identification and fastening section may be a component of the second closing part on the machine side.

[0029] In particular, the first identification and stopper part may include a convex part, and the first fitting and stopper part and the third fitting and stopper part of the first cartridge may each include a concave part with which the convex part of the first identification and stopper part can engage. Alternatively, the first identification and stopper part may include a concave part, and the first fitting and stopper part and the third fitting and stopper part of the first cartridge may each include a convex part with which the concave part of the first identification and stopper part can engage. The same applies to the second cartridge. For example, the second identification and stopper part may include a convex part, and the second fitting and stopper part and the fourth fitting and stopper part of the second cartridge may each include a concave part with which the convex part of the second identification and stopper part can engage. Alternatively, the second identification and stopper part may include a concave part, and the second fitting and stopper part and the fourth fitting and stopper part of the second cartridge may each include a convex part with which the concave part of the second identification and stopper part can engage.

[0030] The size and shape of the first identification and fastening portion may differ from those of the second identification and fastening portion, so as to ensure that the first identification and fastening portion does not catch on either the second or fourth fitting fastening portion of the second cartridge, and / or that the second identification and fastening portion does not catch on either the first or third fitting fastening portion of the first cartridge. In particular, this enables the identification or detection of the first cartridge by the first identification and fastening portion by fixing the first identification and fastening portion to the first fitting fastening portion of the first cartridge, and similarly enables the identification or detection of the second cartridge by fixing the second identification and fastening portion to the second fitting fastening portion of the second cartridge. As a result, the first or second cartridge is docked to either the first or second docking portion, respectively, and recognized before being connected to one or more dispensing devices, washing tanks, or boilers by either the first or second connection portion. This can prevent the first cartridge from docking with the second docking unit, or the second cartridge from docking with the first docking unit. In other words, this can prevent the docking of an incorrect or inappropriate cartridge, in particular a cartridge of an incorrect or inappropriate treatment agent, with the docking unit, or prevent the user from attempting to dock the wrong or inappropriate cartridge with the docking unit. This prevents damage to the cartridges, docking units, connectors, and / or other components of the dishwasher, and prevents a decrease in cleaning quality. The different sizes and / or shapes of each identification and fastening part represent a particularly efficient, easy-to-manufacture, and cost-effective means of identifying each cartridge. Further advantages of this embodiment are described below in relation to a cartridge system consisting of a first cartridge and a second cartridge.

[0031] Furthermore, the material of the first identification / fastening part may be different from the material of the second identification / fastening part. In particular, the electrical, magnetic, or optical properties of the material of the first identification / fastening part may be different from the electrical, magnetic, or optical properties of the material of the second identification / fastening part. For example, the material of the first identification / fastening part may be magnetic, while the material of the second identification / fastening part may not be magnetic, or the magnetic susceptibility of the first identification / fastening part may be different from that of the second identification / fastening part. Furthermore, the material of the first identification / fastening part may be conductive, while the material of the second identification / fastening part may not be conductive, or the conductivity of the first identification / fastening part may be different from that of the second identification / fastening part.

[0032] When the first identification and fastening portion and the second identification and fastening portion are engaged with the first mating fastening portion of the first cartridge or the second mating fastening portion of the second cartridge, the material of the first identification and fastening portion or the material of the second identification and fastening portion may be detected or recognized by each cartridge. For example, the properties of the material of the identification and fastening portion, such as electrical conductivity, magnetic susceptibility, or optical properties such as the color or transparency of the material, may be detected or measured by each cartridge, for example, by a conductivity sensor, Hall sensor, or optical sensor in the cartridge. Alternatively, the material of each identification and fastening portion may be detected by interaction with the material of the mating fastening portion of each cartridge, for example, by magnetic attraction or repulsion between the two materials.

[0033] The detection result may be converted into a signal, preferably an electrical signal, which controls, for example, the mechanical fastening of each cartridge or each docking part, enabling or preventing further engagement of the first identification / fastening part or the second identification / fastening part with the third mating fastening part of the first cartridge or the fourth mating fastening part of the second cartridge, and consequently, docking of each cartridge to each docking part, depending on the detected material (the third and fourth mating fastening parts will be described in more detail below). Alternatively, the signal may be output to inform the user whether each cartridge is suitable for docking with each docking part. For example, the presence or absence of magnetic attraction or repulsion between the cartridge and the docking part may indicate whether the cartridge is suitable for docking with a particular docking part. In particular, this allows the first cartridge or the second cartridge to be identified by the first identification / fastening part or the second identification / fastening part. Using different materials for the first identification / fastening portion or the second identification / fastening portion is a particularly efficient, easy-to-manufacture, and cost-effective means of identifying cartridges. In another preferred embodiment, the first docking portion (or first identification / fastening portion) includes a first identification transmitter for transmitting a first identification signal, and the second docking portion (or second identification / fastening portion) includes a second identification transmitter for transmitting a second identification signal, the second identification signal being different from the first identification signal. Furthermore, the first cartridge (or first mating fastening portion) includes a first identification receiver for receiving and identifying the first identification signal, and the second cartridge (or second mating fastening portion) includes a second identification receiver for receiving and identifying the second identification signal. Furthermore, the dishwasher and / or the first and second cartridges may be configured such that i) when the first identification receiver receives a first identification signal, the first cartridge is dockable to a first docking unit and / or can be connected to one or more dispensing devices, washing tanks or boilers by a first connection unit; ii) when the first receiver receives a second signal, the first cartridge is not dockable to a second docking unit and / or cannot be connected to one or more dispensing devices, washing tanks or boilers by a second connection unit; iii) when the second identification receiver receives a second identification signal, the second cartridge is dockable to a second docking unit and / or can be connected to one or more dispensing devices, washing tanks or boilers by a second connection unit, and / or, ii) when the second receiver receives a first signal, the second cartridge is not dockable to a first docking unit and / or cannot be connected to one or more dispensing devices, washing tanks or boilers by a first connection unit.

[0034] The first identification transmitter and the second identification transmitter may each be RFID tags, and the first identification receiver or the second identification receiver may each be RFID readers. Conversely, the identification transmitters may be contained within their respective cartridges, and the identification receivers may be contained within their respective docking units.

[0035] Please note that the above describes only two different docking sections for docking the corresponding cartridges. However, a dishwasher may have three or more docking sections, each of which may be different or the same in shape for docking one cartridge at a time. For example, a dishwasher may have three docking sections, one for a detergent cartridge, one for a rinse aid cartridge, and one for another treatment agent (e.g., an antifoaming agent, an enzyme detergent, or a disinfectant).

[0036] In another preferred embodiment, the docking section is designed to dock multiple identical or substantially identical cartridges. Thus, multiple cartridges for the same treatment agent, in particular, may be docked to the docking section and connected by corresponding connectors to one or more dispensing devices, washing tanks, or boilers. As a result, the size and weight of individual cartridges can be reduced, further simplifying the transport and handling of cartridges. Furthermore, multiple identical or substantially identical cartridges can be used in succession. For example, if a first cartridge connected to one or more dispensing devices, washing tanks, or boilers by a first connector is already as completely or entirely empty as possible, a second cartridge, acting as a backup cartridge, cannot be connected to one or more dispensing devices, washing tanks, or boilers by a second connector. This has the advantage that the quality of the treatment agent in the backup cartridge does not deteriorate until the backup cartridge is connected to one or more dispensing devices, washing tanks, or boilers. As a result, adjusting the amount of treatment agent is further simplified, especially for small-scale dishwashing businesses or companies that wash dishes on a small scale.

[0037] In a more preferred embodiment, the docking unit is positioned to move back and forth relative to the cleaning compartment between a docking position for docking one or more cartridges and an operating position for connecting one or more docked cartridges to one or more dispensing devices, cleaning tanks, or boilers by one or more connecting units, the operating position being different from the docking position.

[0038] This prevents one or more cartridges from being automatically connected to one or more dispensing devices, washing tanks, or boilers by one or more connectors, and instead allows them to be docked with the docking unit at the docking position. In particular, when the docking unit moves to the operating position, one or more cartridges cannot be automatically connected to one or more dispensing devices, washing tanks, or boilers by one or more connectors until they are subsequently connected. This allows one or more cartridges to be docked gradually and securely to the docking unit, ensuring that one or more cartridges are safely connected to one or more dispensing devices, washing tanks, or boilers, thereby preventing damage to the cartridges, docking unit, one or more connectors, or components of the dishwasher. In particular, the user can choose the time to connect one or more cartridges to one or more dispensing devices, washing tanks, or boilers, regardless of the time it takes to dock one or more cartridges to the docking unit, thereby improving ease of use.

[0039] When the docking section is in the operating position, at least one connector is positioned to move back and forth relative to the docking section between a first position and a second position, according to a particularly preferred embodiment. When at least one connector is in the first position, the cartridge docks with a docking section to which the corresponding at least one connector is not connected to one or more dispensing devices, washing tanks, or boilers, and when the connector is in the second position, the cartridge is connected to one or more dispensing devices, washing tanks, or boilers. This is preferable for each of the one or more connectors, i.e., each of the one or more connectors may be positioned to move back and forth relative to the docking section between their respective first position and their respective second position as described above.

[0040] Thus, one or more cartridges may be docked to the docking unit in the docking position, or the docking unit may be moved to the operating position without one or more cartridges being automatically connected to one or more dispensing devices, washing tanks, or boilers by one or more connectors. For example, in the first step, one or more cartridges may be docked to the docking unit. In the second step, the docking unit may be moved to the operating position. In the third step, one or more connectors may be moved from the first position to the second position to connect to one or more dispensing devices, washing tanks, or boilers. This ensures stepwise safe docking of one or more cartridges to the docking unit, safe movement of the docking unit to the operating position, and safe connection to one or more dispensing devices, washing tanks, or boilers, thereby preventing damage to the cartridges, docking unit, one or more connectors, or components of the dishwasher. In particular, users can select the time to connect one or more cartridges to one or more dispensing devices, cleaning tanks, or boilers, regardless of the docking time and the time to move the docking unit to the operating position, thereby improving ease of use.

[0041] According to another preferred embodiment, the dishwasher further comprises a housing having an opening for inserting one or more cartridges into the dishwasher, and an opening / closing section, the opening / closing section may be designed in particular as a folding, sliding, rotating or swivel device. The opening / closing section is arranged to move back and forth between an open position for opening the opening and a closed position for closing the opening, and is arranged in particular as a folding, sliding, rotating or swivel device. The opening / closing section is connected to a docking section such that when the opening / closing section is in the open position, the docking section is in the docking position, and when the opening / closing section is in the closed position, the docking section is in the operating position.

[0042] In particular, the opening / closing part may be a dispensing flap that opens and closes a dispensing port provided in the dishwasher's storage compartment, through which one or more cartridges are inserted into the dishwasher. When the opening / closing part is in the open position, the docking part is in the docking position, so one or more cartridges can be easily docked to the docking part by the user. By moving the opening / closing part to the closed position, one or more cartridges may be transported into the dishwasher through the opening. At the same time, the docking part moves to the operating position, so there is no need for the user to move the docking part to the operating position after moving the opening / closing part to the closed position. This improves user convenience regarding the replenishment of the treatment agent.

[0043] In another preferred embodiment, the dishwasher comprises at least one reservoir for holding at least one cartridge of treatment agent and for dispensing the treatment agent to one or more dispensing devices, washing tanks, or boilers. The reservoir may also be called a buffer tank. The reservoir is equipped with sensors for determining quantities such as volume or weight of treatment agent in the reservoir. The quantity of treatment agent is determined, for example, by a capacitive, optical, mechanical, or other physical method for measuring the filling level of treatment agent in the reservoir. The maximum amount of treatment agent that can be held in a cartridge may be greater than or equal to the maximum amount of treatment agent that can be held in the reservoir. In particular, the maximum amount of treatment agent that can be held in a cartridge may be several times the maximum amount of treatment agent that can be held in the reservoir, for example, 2, 3, 4, 5, or 10 times. Note that the dishwasher may have multiple reservoirs, which are designed to hold treatment agents for corresponding cartridges and to dispense the treatment agents for corresponding cartridges to one or more dispensing devices, washing tanks, or boilers. Furthermore, each of the reservoirs may be equipped with a sensor to determine the amount of processing agent in each reservoir and to control the dishwasher accordingly.

[0044] The embodiments described above have the advantage that even after the cartridge is completely empty, one or more washing processes can be carried out by using the treatment agent from a reservoir for one or more washing processes. In particular, the dishwasher reservoir may function as a preventative for preventing the treatment agent transport function from running dry. As a result, the cartridge can be completely emptied, especially with respect to the chemicals. Furthermore, sensors may be used to determine the remaining amount of treatment agent in the reservoir and to perform appropriate control of the dishwasher. For example, the remaining amount of treatment agent in the reservoir is displayed to the user so that the cartridge can be replaced in a timely manner and the reservoir can be prevented from becoming completely empty. Another advantage of integrating the sensor into the dishwasher reservoir rather than the cartridge is that it allows for the use of less waste and more durable technology.

[0045] In particular, the dishwasher may be configured to emit a warning signal when the amount of treatment agent in the reservoir, as determined by a sensor, falls below a first lower limit. The warning signal may be implemented as an audible signal and / or a display on the dishwasher's display. The first lower limit may be greater than or equal to the amount of treatment agent required for one or more washing processes. In particular, the first lower limit may be several times the amount used, for example, 2, 3, 4, 5, or 10 times. The warning signal can prompt the user to replace the cartridge in a timely manner, even if the cartridge is almost completely empty, as long as there is still enough treatment agent in the reservoir for one or more washing processes. This ensures the permanent availability of the treatment agent and improves user convenience. Furthermore, completely emptying the cartridge improves processing efficiency and reduces the amount of treatment agent discharged, thus contributing to environmental protection.

[0046] According to another preferred embodiment, the dishwasher comprises a valve and a control unit. At least one cartridge is connected by a connector to one or more dispensing devices, washing tanks, or boilers, and the valve is designed so that when it is open, the processing agent from the cartridge can enter the reservoir. The valve is also designed so that when it is closed, the processing agent from the cartridge cannot enter the reservoir. The control unit is configured to open and close the valve based on the amount of processing agent in the reservoir determined by a sensor. In particular, the control unit is implemented by mechanical components, hardware components, and / or software components of the dishwasher.

[0047] The valve and control unit enable efficient and automatic control of the amount of processing agent in the reservoir, thereby improving the usability of the dishwasher.

[0048] In particular, the control unit may be set to open the valve when the amount of treatment agent in the reservoir, as determined by the sensor, falls below a second lower limit, preferably the second lower limit being greater than the first lower limit. The second lower limit may be greater than or equal to the amount of treatment agent required for one or more washing processes. In particular, the second lower limit may be several times the amount used, for example, 2, 3, 4, 5, or 10 times. This configuration of the control unit ensures that the amount of treatment agent in the reservoir does not fall below the second lower limit, as long as there is at least some treatment agent remaining in the cartridge that can enter the reservoir. This ensures the permanent availability of treatment agent in the reservoir, improves user convenience, and improves rinsing quality.

[0049] Furthermore, the control unit may be configured to close a valve when the amount of treatment agent in the reservoir, as determined by the sensor, exceeds a maximum value, the maximum value being preferably greater than a first lower limit and / or a second lower limit. The maximum value may be greater than the amount of treatment agent required for one or more cleaning processes. In particular, the maximum value may be several times the amount used, for example, 2, 3, 4, 5, or 10 times. This configuration of the control unit ensures that the amount of treatment agent in the reservoir does not exceed the maximum value. This is particularly preferable when the user performs only a few cleaning processes and wants to leave the remaining treatment agent in the cartridge for later use. Therefore, there is no improvement in user convenience regarding treatment agent replenishment.

[0050] According to the present invention, a system comprising multiple cartridges of one or more processing agents for a dishwasher comprises at least one first cartridge and at least one second cartridge. The first cartridge includes a first fitting fastener portion for engaging with a first identification / fastener portion, and the second cartridge includes a second fitting fastener portion for engaging with a second identification / fastener portion. The size and / or shape of the first fitting fastener portion may differ from the size and / or shape of the second fitting fastener portion. As described above in relation to the dishwasher according to the present invention, this enables identification or detection of the first cartridge by engaging the first identification / fastener portion with the first fitting fastener portion of the first cartridge, and identification or detection of the second cartridge by engaging the second identification / fastener portion with the second fitting fastener portion of the second cartridge. Thus, as described above, damage and deterioration of the quality of the cartridge system or dishwasher are prevented by improper or inappropriate cartridge docking or connection. The different sizes and / or shapes of each fitting stopper portion provide a particularly efficient, easy-to-manufacture, and cost-effective means of identifying each cartridge.

[0051] Furthermore, the material of the first fitting fastener portion may be different from the material of the second fitting fastener portion. In particular, the electrical, magnetic, or optical properties of the material of the first fitting fastener portion may be different from the electrical, magnetic, or optical properties of the material of the second fitting fastener portion. For example, the material of the first fitting fastener portion may be magnetic, while the material of the second fitting fastener portion may not be magnetic, or the magnetic susceptibility of the first fitting fastener portion may be different from that of the second fitting fastener portion. Furthermore, the material of the first fitting fastener portion may be conductive, while the material of the second fitting fastener portion may not be conductive, or the conductivity of the first fitting fastener portion may be different from that of the second fitting fastener portion.

[0052] When the first identification / fastening portion or the second identification / fastening portion engages with the first mating fastening portion of the first cartridge or the second mating fastening portion of the second cartridge, the material of each mating fastening portion may be identified or detected by each identification / fastening portion. The material properties of the mating fastening portion, such as electrical conductivity, magnetic susceptibility, or optical properties such as the color or transparency of the material, may be detected or measured by the docking portion, for example, by a conductivity sensor, Hall sensor, or optical sensor in the docking portion. Alternatively, the material of the mating fastening portion may be detected by interaction with the material of the identification / fastening portion, for example, by magnetic attraction or repulsion between the two materials.

[0053] The detection result may be converted into a signal, preferably an electrical signal, which controls, for example, the mechanical fastening of each docking section or each cartridge, enabling or preventing further engagement of the first identification / fastening section or the second identification / fastening section with the third mating fastening section of the first cartridge or the fourth mating fastening section of the second cartridge, and consequently, docking of each cartridge to each docking section, depending on the detected material (the third and fourth mating fastening sections will be described in more detail below). Alternatively, an electrical signal may be output to inform the user whether each cartridge is suitable for docking with each docking section. For example, the presence or absence of magnetic attraction or repulsion between the cartridge and the docking section may indicate whether the cartridge is suitable for docking with a particular docking section. This makes it possible for the first cartridge or the second cartridge to be identified by the first identification / fastening section or the second identification / fastening section. Using different materials for the first and second locking portions (where applicable) and using different materials for the first and second identification / locking portions of the first and second docking portions is a particularly efficient, easy-to-manufacture, and cost-effective means of identifying cartridges. According to a preferred embodiment, the first cartridge further comprises a third locking portion for engaging with the first identification / locking portion, wherein the size, shape, or material of the third locking portion is the same as or nearly the same as the size, shape, or material of the first locking portion, and the third locking portion and the first locking portion are spaced apart from each other in the direction of insertion of the first cartridge into the dishwasher. Furthermore, the second cartridge includes a fourth fitting fastener portion for engaging with the second identification and fastener portion, the size, shape and / or material of the fourth fitting fastener portion being the same as or nearly the same as the size, shape and / or material of the second fitting fastener portion, and the fourth fitting fastener portion and the second fitting fastener portion are spaced apart from each other in the direction of insertion of the first cartridge into the dishwasher.

[0054] This means that when the first cartridge is inserted into the dishwasher, the first identification and fastening portion first engages with the first mating fastening portion of the first cartridge, thereby identifying or detecting the first cartridge. Only after the first cartridge has been identified or detected, the first identification and fastening portion may engage with the third mating fastening portion of the first cartridge, thereby docking the first cartridge to the first docking portion by applying another force to the first cartridge in the insertion direction, for example, so that the first identification and fastening portion disengages again from the first mating fastening portion and then engages with the third mating fastening portion. Thus, the first cartridge may be docked to the first docking portion only after it has been identified by the first identification and fastening portion. Similarly, the second cartridge may be docked to the second docking portion only after it has been identified by the second identification and fastening portion. This prevents, in particular, the first cartridge from being docked to the second docking portion, or the second cartridge from being docked to the first docking portion. Therefore, as described above, damage to the cartridge system or dishwasher and deterioration of its quality can be prevented by improper or inappropriate cartridge docking or connection.

[0055] According to the present invention, the dishwashing system comprises a dishwasher and a system consisting of one or more cartridges, preferably a plurality of cartridges as described above. The dishwashing system improves ease of use regarding the replenishment of the treatment agent.

[0056] According to another preferred embodiment of the dishwashing system, the multiple cartridges have the same or substantially the same shape, size and / or maximum holding capacity for each processing agent.

[0057] This simplifies the manufacturing, transportation, and storage of multiple cartridges, reducing costs. Furthermore, it enables the simultaneous emptying of multiple cartridges, such as when the same treatment agent from each cartridge is used in one or more cleaning processes. This allows users to always replace multiple cartridges at the same time, reducing the frequency of cartridge replacements. This improves user convenience and safety regarding treatment agent replenishment.

[0058] According to another preferred embodiment of the dishwashing system, at least one of the one or more cartridges comprises a discharge port and a drain surface designed so that when the cartridge is connected by a corresponding connector to one or more dispensing devices, washing tanks or boilers, the treatment agent can be discharged from the cartridge along one or more drain surfaces in the direction of the discharge port, flowing into one or more dispensing devices, or entering a washing tank, boiler or reservoir, and at least one of the discharge surfaces or each discharge surface is inclined at an angle greater than 0° and less than 90° with respect to the direction of discharge of the treatment agent from the cartridge, preferably at an angle of 45°, 50°, 60°, 70° or 80°.

[0059] This allows the treatment agent to flow along one or more inclined drain surfaces towards the outlet, enabling the cartridge to be completely used up through the outlet. This makes it possible to completely empty the cartridge, or empty it as much as possible, leading to cost savings for the user and improved cartridge disposal.

[0060] According to the present invention, the processing agent cartridge for the dishwasher described above further has a maximum processing agent holding capacity level, preferably within the "limited quantity" rules for the transport of hazardous materials. In particular, the maximum holding capacity may be the maximum holding volume for processing agent of 0.5 liters or less, 1 liter or less, 2 liters or less, 5 liters or less, 10 liters or less, or 20 liters or less. Alternatively, the maximum holding capacity may be the maximum weight for processing agent of 0.5 kilograms or less, 1 kilogram or less, 2 kilograms or less, 5 kilograms or less, 10 kilograms or less, or 20 kilograms or less. Alternatively, the sum of the weight of the cartridge itself and the maximum weight of the processing agent may be 0.5 kilograms or less, 1 kilogram or less, 2 kilograms or less, 5 kilograms or less, 10 kilograms or less, or 20 kilograms or less.

[0061] By packaging the treatment agent in individual cartridges, the hazard is minimized to the extent that the transport of the cartridges falls under the "limited quantity" rule. For example, the transport of hazardous materials in internal packaging is permitted up to a total volume of 30 kilograms in complete packaging. In this case, the total volume of the treatment agent is divided into individual smaller units, so the hazard is classified as low. It becomes more likely that not all individual units will be released, and the extent of damage caused by released individual units is reduced. This reduces the risk of treatment agent leakage during cartridge transport, and thus reduces the effort and cost of transporting the treatment agent.

[0062] In a preferred embodiment, the cartridge according to the present invention may include further complex modules, such as an integrated transport mechanism and / or integrated intelligence for the treatment agent (e.g., barcode, pin-en-coating, RFID, QR code®, chip, near-field communication NFC). Connecting the cartridge to the dishwasher's control system enables, for example, automatic detection of the cartridge or treatment agent within the cartridge, automatic dispensing of the treatment agent based on the detection, and timely display or calculation of the remaining rinse cycles to facilitate estimation of whether the remaining treatment agent in the cartridge is sufficient for the washing operation. In other words, the dishwasher's dispensing pump can be controlled to dispense different amounts depending on the treatment agent, and the dishwasher receives information about the corresponding treatment agent through the integrated intelligence. [Brief explanation of the drawing]

[0063] These and other features and advantages of the present invention are illustrated by the accompanying schematic drawings illustrating particularly preferred embodiments. [Figure 1] A schematic diagram illustrating a functional embodiment of a dishwasher according to the present invention. [Figure 2] A perspective view of an embodiment of a dishwasher according to the present invention, comprising two cartridges according to the present invention. [Figure 3] A perspective view of the docking section of a dishwasher, which includes a first docking section and a second docking section, and a first cartridge and a second cartridge that can be docked to the first docking section and the second docking section, respectively. [Figure 4a] A schematic diagram of an embodiment of a dishwasher according to the present invention, which has a flap portion in the open position and a docking portion in the docking position, so that the cartridge is docked to the docking portion. [Figure 4b] Figure 4a shows a schematic diagram in which the cartridge is already docked to the docking unit, and the flap unit is moved from the open position to the closed position in order to move the docking unit from the docking position to the operating position. [Figure 4c]A schematic diagram as shown in Figure 4b, in which the flap is in the closed position, the docking part is in the operating position, and the docked cartridge is connected by a connector to one or more dispensing devices, washing tanks, or boilers. [Figure 5] A schematic diagram of an embodiment of a dishwasher according to the present invention, which includes a cartridge having a reservoir for holding a processing agent from the cartridge. [Figure 6a] A side view of the first cartridge and the first docking section to which the first cartridge is docked. [Figure 6b] A side view of the second cartridge and the second docking section to which the second cartridge is docked. [Figure 7a] A top view of the first cartridge and the first docking part along cross-sectional area AA from Figure 6a, and a top view of the first cartridge and the first docking part along cross-sectional area CC corresponding to the side view from Figure 6a. [Figure 7b] A top view of the second cartridge and second docking section along the cross-sectional area BB from Figure 6b, and a top view of the second cartridge and second docking section along the cross-sectional area CC corresponding to the side view from Figure 6b. [Modes for carrying out the invention]

[0064] Figure 1 schematically shows a functional diagram of one embodiment of a dishwasher according to the present invention 1, comprising a storage section 140 and a washing section 110. The dishwasher 1 comprises a plurality of dispensing devices for dispensing treatment agents to the items to be washed 111a to d, in particular a first dispensing device 111a and a third dispensing device 111c for dispensing treatment agents such as washing solution into the washing section 110, and a second dispensing device 111b and a fourth dispensing device 111d for dispensing other treatment agents such as rinse agents, in particular rinse agent liquid, into the washing section 110. In this embodiment, the dispensing devices 111a-d are designed as washing arms and are rotatably arranged within the washing section 110 of the dishwasher 1. Within the washing section 110, there is also a washing basket 112 in particular for organizing the dishes.

[0065] The dishwasher 1 also includes a first docking section 120a and a second docking section 120b. A first cartridge 2a is docked to the first docking section 120a, and a second cartridge 2b is docked to the second docking section 120b. The first cartridge 2a may contain cleaning solution, and the second cartridge 2b may be filled with a concentrated rinse agent. Since the first cartridge 2a docked to the first docking section 2a is connected to the washing tank 180 by a first connection section 130a, the cleaning solution from the first cartridge 2a is sent to the washing tank 180 via a first supply line 183. Within the first supply line 183, there is a first conveying device, which is equipped with a first dispensing pump 183a. When the first dispensing pump 183a is switched on, it enables dispensing or delivery of cleaning liquid from the first cartridge 2a to the cleaning tank 180. When the first dispensing pump 183a is switched off, the cleaning liquid is not delivered to the cleaning tank 180.

[0066] The washing tank 180 includes a screen system 182 and a heating device 181 for heating the washing liquid inside the washing tank 180. Furthermore, the washing tank 180 is connected to a first dispensing line 185 to which the washing liquid is sent to a first dispensing device 111a and a third dispensing device 111c in the washing section 110. The conveying device in the first dispensing line 185 is provided with a washing pump 185a. When the washing pump 185a is switched on, it enables the dispensing of washing liquid from the washing tank 180 to the dispensing devices 111a and 111c, and when the washing pump 185a is switched off, the washing liquid is not sent to the dispensing devices.

[0067] The cleaning solution discharged via the dispensing devices 111a and 111c is discharged into the cleaning compartment 110 and then re-accumulated in the cleaning tank 180, thus forming a cleaning circuit. Furthermore, the dishwasher 1 is equipped with a drain pipe 310 having a drain pump 310a, and the soiled cleaning solution may be discharged from the cleaning tank 180 and disposed of.

[0068] The second cartridge 2b, docked to the second docking section 2a, is connected to the boiler 190 by a second connection section 130b (not shown). In this process, the rinse agent from the second cartridge 2b reaches the second supply line 193, where it is mixed with tap water from the tap water pipe 330, resulting in diluted rinse solution entering the boiler 190. The second transport device in the second supply line 193 is provided with a second dispensing pump 193a. When the dispensing pump 193a is switched on, it enables the discharge or delivery of concentrated rinse agent from the second cartridge 2b to the boiler 190. When the dispensing pump 193a is switched off, the concentrated rinse agent is not delivered to the boiler 190. In particular, the dispensing pump 193a can accurately control the concentration of the rinse agent solution, i.e., the ratio of concentrated rinse agent to tap water. The tap water pipe 330 is further equipped with a valve device, in this embodiment a solenoid valve 340. The valve device allows the supply of tap water to the boiler 190 when it is in the open position, and blocks the supply of tap water to the boiler 190 when it is in the closed position. There is also a water supply safety device 350 inside the tap water pipe 330.

[0069] The boiler 190 is equipped with a heating device 191 for heating the rinse solution. Furthermore, the boiler 190 is connected to a second dispensing line 195 through which the rinse solution is sent to a second dispensing device 111b and a fourth dispensing device 111d in the washing section 110. The conveying device in the second dispensing line 195 is provided with a rinse pump 195a, which, when switched on, enables the discharge or delivery of the rinse solution from the boiler 200 to the dispensing devices 111b and 111d, and when the rinse pump 195a is switched off, the rinse solution is not discharged to the dispensing devices.

[0070] Figure 2 shows a part of one embodiment of a dishwasher according to the present invention 1, which comprises two cartridges 2 according to the present invention, namely a first cartridge 2a and a second cartridge 2b, each cartridge which may be filled with a processing agent for one or more washing steps of the dishwasher. The dishwasher 1 includes a docking section 120 for docking the two cartridges 2a and 2b. The docking section 120 includes a first docking section 120a for docking the first cartridge 2a and a docking section 120b for docking the second cartridge 2b, and only the second docking section 120b is shown in Figure 2. The dishwasher 1 further includes a first connection part 130a for directly or indirectly connecting the first cartridge 2a, which is docked to the docking part 120, to one or more dispensing devices 111a-d, the washing tank 180 of the dishwasher 1, or the boiler 190 within the washing compartment 110 of the dishwasher, and a second connection part 130b for directly or indirectly connecting the second cartridge 2b, which is docked to the docking part 120, to one or more dispensing devices 111a-d, the washing tank 180, or the boiler 190. In Figure 2, only the second connection part 130b is shown. The first connection part 130a and the second connection part 130b are designed as pins that penetrate the membranes of each cartridge 2a and 2b, or pins that operate the check valves of each cartridge 2a and 2b, in order to connect each cartridge 2a and 2b to one or more dispensing devices 111a-d, washing tanks 180, or boilers 190.

[0071] The dishwasher 1 further includes a storage section 140 having a flap section 142, which in Figure 2 is in the open position, and further details will be described later. The first cartridge 2a shown in Figure 2 is already docked to the first docking section 130a of the docking section 130, and the second cartridge 2b is not yet docked to the second docking section 130b. However, the arrow in Figure 2 illustrates that the user inserts the second cartridge 2b into the dishwasher 1 by docking the second cartridge 2b to the second docking section 130b of the docking section 130. In this embodiment, the first cartridge 2a and the second cartridge 2b have substantially the same shape, size and holding capacity for each processing agent.

[0072] Figure 3 shows a cross-sectional perspective view of the dishwasher 1, in particular of the docking section 120 comprising two docking sections 120a and 120b and two cartridges 2a and 2b. The housing section 140 of the dishwasher 1 is omitted from this figure to better represent the docking section 120 and the two cartridges 2a and 2b. In Figure 3, the first cartridge 2a is already docked to the second docking section 120b of the docking section 120, and the second cartridge 2b is not yet docked to the second docking section 130b of the docking section 130. Vertical arrows indicate the respective directions 3 of the two cartridges 2a and 2b relative to the dishwasher 1 and the direction 4 of the processing agent from the two cartridges 2a and 2b relative to the dishwasher 1. In this embodiment, the insertion direction 3 is parallel to the drainage direction 4, but is not necessarily so. The insertion direction 3 may be at an angle to the drainage direction 4, more preferably between 0° and 90°.

[0073] Figures 4a to 4c show schematic diagrams of one embodiment of a dishwasher 1 according to the present invention, equipped with a cartridge 2 according to the present invention. In this embodiment, the docking section 120 is designed as a holding section 120 for holding the cartridge 2. Since the cartridge 2 is inserted into the holding section 120, the holding section 120 surrounds the inserted cartridge 2 from multiple sides through each wall of the holding section 120. Furthermore, in this embodiment, the docking section 120 is positioned to move back and forth relative to the washing section 110 between a docking position for docking the cartridge 2 and an operating position for connecting the docked cartridge 2 to one or more dispensing devices 111a-d, a washing tank 180, or a boiler 190 by a connecting section 130, the operating position being different from the docking position. Furthermore, Figures 4a to 4c show the housing section 140 of the dishwasher 1, which includes an opening 141 for inserting the cartridge 2 into the dishwasher 1 and a flap section 142. The flap portion 142 is positioned to move back and forth between an open position for opening the opening 141 and a closed position for closing the opening 141. The flap portion 142 is connected to the docking portion 120 such that when the flap portion 142 is in the open position, the docking portion 120 is in the docking position, and when the flap portion 142 is in the closed position, the docking portion 120 is in the operating position. Furthermore, Figures 4a to 4c show a connection portion 130 for connecting the cartridge 2 docked to the docking portion 120 to one or more dispensing devices 111a-d, a washing tank 180, or a boiler 190. The connection portion 130 is designed as a pin that penetrates the membrane of the cartridge 2, or a pin that operates the check valve of the cartridge 2, in order to connect the cartridge 2 to one or more dispensing devices 111a-d, a washing tank 180, or a boiler 190.

[0074] In particular, Figure 4a shows the state of the dishwasher with the flap portion 142 in the open position and the docking portion 120 in the docking position. In the docking position, the docking portion 120 is at least partially outside the opening 141, thereby making it easily accessible to the user. The arrows in Figure 4a indicate that the user inserts the cartridge 2 into the dishwasher by docking and / or engaging or securing the cartridge 2 to the docking portion 120 in the docking position.

[0075] Figure 4b shows the state where the flap section 142 is still in the open position and the docking section is in the operating position. However, in Figure 4b, the cartridge 2 is already docked to the docking section 120. The arrow in Figure 4b indicates that as the flap section 142 moves from the open position to the closed position, the docking section 120 is moved from the docking position to the operating position, and the docked cartridge 2 is sent into the dishwasher 1 through the storage section 141.

[0076] Finally, Figure 4c shows the state where the flap section 142 is in the closed position and the docking section is in the operational position. The docking section 120, the connector section 130, and the cartridge 2 are now completely inside the dishwasher and protected from the outside by the housing section 140 and the flap section 142 in the closed position. In this embodiment, when the docking section 120 is in the operational position, the cartridge 2 is automatically connected by the connector section 130 to one or more dispensing devices 111a-d, washing tanks 180, or boilers 190. Therefore, in Figure 4c, the cartridge 2 is already connected by the connector section 120 to one or more dispensing devices 111a-d, washing tanks 180, or boilers 190. In this state, the treatment agent may flow from the cartridge 2 to one or more dispensing devices 111a-d, or enter the washing tank 180, boiler 190, or reservoir 150, to receive the treatment agent for use in one or more washing processes of the dishwasher 1, as described later.

[0077] Figure 5 shows a schematic diagram of one embodiment of a dishwasher 1 according to the present invention, which includes a cartridge 2 according to the present invention, the dishwasher 1 comprising a reservoir 150 for holding the treatment agent from the cartridge 2 and for dispensing the treatment agent to one or more dispensing devices 111a-d, a washing tank 180, or a boiler 190. The reservoir 150 comprises a sensor 151 for determining the amount of treatment agent in the reservoir 150. The dishwasher 1 may issue a warning signal if the amount of treatment agent in the reservoir 150, as determined by the sensor 151, falls below a first lower limit. The dishwasher 1 also comprises a valve 160 and a control unit. The valve 160 is designed such that i) when the valve 160 is open, the treatment agent from the cartridge 2 can enter the reservoir 150, and ii) when the valve 160 is closed, the treatment agent from the cartridge 2 cannot enter the reservoir 150. Furthermore, the control unit 170 is configured to open and close the valve 160 based on the amount of processing agent in the reservoir 150 determined by the sensor 151. In particular, the control unit 170 may be configured to open the valve 160 when the amount of processing agent in the reservoir 150 determined by the sensor 151 falls below a second lower limit, and the second lower limit may be greater than the first lower limit. Furthermore, the control unit 170 may be configured to close the valve 160 when the amount of processing agent in the reservoir 150 determined by the sensor 151 exceeds a maximum value, and the maximum value may be greater than the first lower limit and / or greater than the second lower limit.

[0078] Figures 6a to 7b show one embodiment of a dishwasher 1 comprising a first docking section 120a to which the first cartridge 2a is docked, and a second docking section 120b to which the second cartridge 2b is docked. More precisely, Figure 6a is a side view of the first docking section 10a to which the first cartridge 2a is docked, Figure 6b is a side view of the second docking section 120b to which the second cartridge 2b is docked, Figure 7a is a top view of the first cartridge 2a and the first docking section 120a along the cross-sectional area AA from Figure 6a, and Figure 7b is a top view of the second cartridge 2b and the second docking section 120b along the cross-sectional area BB from Figure 6b. Conversely, Figure 6a corresponds to a side view of the first docking section 120a along the cross-sectional area CC from Figure 7a, and Figure 6b corresponds to a side view of the second docking section 120b along the cross-sectional area DD from Figure 7b.

[0079] In this embodiment, as will be described later, the first cartridge 2a is not dockable to the second docking unit 120b, and the second cartridge 2b is not dockable to the first docking unit 120a.

[0080] The first docking portion 120a includes a first identification / fastening portion 121a, and the first cartridge 2a includes a first fitting fastening portion 211a and a third fitting fastening portion 211c. These portions are designed such that the first identification / fastening portion 121a can engage with the first fitting fastening portion 211a and the third fitting fastening portion 211c, respectively. The first identification / fastening portion 121a is specifically designed as the first protrusion 121a of the first docking portion 120a, and the first fitting fastening portion 211a and the third fitting fastening portion 211c are designed as the first recess 211a and the third recess 211c of the first cartridge side closing portion 210a of the first cartridge 2a, respectively. The first identification and fastening portion 121a forms a first machine-side closing portion, and as described above, the first machine-side closing portion forms a first closing portion comprising a first cartridge-side closing portion 210a, in particular a first fastening closing portion.

[0081] The size and shape of the first recess 211a are identical or nearly identical to the size and shape of the third recess 211c, and the size and shape of the protrusion 121a correspond to the size and shape of the two recesses 211a and 211c, so that the protrusion 121a can engage with either of the two recesses 211a and 211c. Furthermore, the first recess 211a and the third recess 211c are separated from each other in the insertion direction 3 of the first cartridge 2a into the dishwasher 1. Therefore, when the user inserts the first cartridge 2a into the dishwasher 1, the protrusion 121a first engages with the first recess 211a to identify or detect the first cartridge 2a. Subsequently, when the user applies force to the cartridge in the insertion direction, the first protrusion 121a engages with the third recess 211c from the first recess 211a, so that the identified first cartridge 2a is docked to the first docking part 120a.

[0082] The same applies to the second docking portion 120b and the second cartridge 2b; that is, the second docking portion 120b comprises a second identification / fastening portion 121b, and the second cartridge 2b comprises a second fitting fastening portion 211b and a fourth fitting fastening portion 211d. These portions are designed such that the second identification / fastening portion 121b can engage with the second fitting fastening portion 211b and the fourth fitting fastening portion 211d. The second identification / fastening portion 121b is specifically designed as the second protrusion 121b of the second docking portion 120b, and the second fitting fastening portion 211b and the fourth fitting fastening portion 211d are designed as the second recess 211b and the fourth recess 211d of the first cartridge-side closing portion 210b of the second cartridge 2b, respectively. The second identification / fastening portion 121b forms a second machine-side closing portion, and as described above, the second machine-side closing portion forms a second closing portion, in particular a second fastening closing portion, which includes a second cartridge-side closing portion 210b.

[0083] The size and shape of the second recess 211b are identical or nearly identical to the size and shape of the fourth recess 211d, and the size and shape of the protrusion 121b correspond to the size and shape of the two recesses 211b and 211d, so that the protrusion 121b can engage with either of the two recesses 211b and 211d. Furthermore, the second recess 211b and the fourth recess 211d are separated from each other in the insertion direction 3 of the second cartridge 2b into the dishwasher 1. Therefore, when the user inserts the second cartridge 2b into the dishwasher 1, the protrusion 121b first engages with the second recess 211b to identify or detect the second cartridge 2b. Subsequently, when the user applies force to the cartridge in the insertion direction, the second protrusion 121b engages with the fourth recess 211d from the second recess 211b, so that the identified second cartridge 2b is docked to the second docking portion 120b.

[0084] However, the size and / or shape of the first protrusion 121a is different from the size and shape of the second protrusion 121b. Similarly, the size and / or shape of the first recess 211a is different from the size and / or shape of the second recess 211b, and the size and / or shape of the third recess 211c is different from the fourth recess 211c. This ensures that the first protrusion 121a cannot engage with either the second recess 211b or the fourth recess 211d, and that the second protrusion 121b cannot engage with either the first recess 211a or the third recess 211c. Therefore, when a user attempts to dock the first cartridge 2a with the second docking part 120b, the second protrusion 121b cannot engage with the first recess 211a of the first cartridge 2a, and thus the first cartridge 2a is not identified by the second docking part 120b, and this is unsuccessful. Therefore, the second protrusion 121b cannot engage with the third recess 211a of the first cartridge 2a, and the first cartridge 2a is not docked to the second docking portion 120b. For the same reason, the second cartridge 2b is not docked to the first docking portion 120a.

[0085] Various shapes and sizes of protrusions and recesses are shown as examples in Figures 6a and 6b. In particular, Figure 6a shows that the first recess 211a and the third recess 211c are the same or substantially the same height, that is, they have the same or substantially the same dimensions along the insertion direction 3 of the first cartridge 2a, and that the height of the first protrusion 121a corresponds to (or is slightly smaller than, as shown in Figure 6) the heights of the first recess 211a and the third recess 211c, so that the first protrusion 121a can engage with the first recess 211a and the third recess 211c, respectively. In Figure 6a, the first protrusion 121a is already engaged with the third recess 211c, so the first cartridge 2a is docked to the first docking part 120a. Furthermore, Figure 7a shows that the dimensions of the first protrusion 121a perpendicular to the insertion direction 3 of the first cartridge 2a, or more precisely, the angular dimension of the first protrusion 121a in the cross-sectional region AA from Figure 6a, correspond to (or are slightly smaller than, as shown in Figure 7a) the angular dimension of the third recess 211c, thus indicating that the first protrusion 121a can engage with the third recess 211c. Similarly, the angular dimension of the first protrusion 121a in the cross-sectional region AA corresponds to the angular dimension of the first recess 211a (although not shown in Figure 7a), so the first protrusion 121a can engage with the first recess 211a.

[0086] Similarly, as shown in Figure 6b, the second recess 211b and the fourth recess 211d have the same or substantially the same height, that is, the same or substantially the same dimensions along the insertion direction 3 of the second cartridge 2, and the height of the second protrusion 121b corresponds to (or is slightly smaller than, as shown in Figure 6b) the heights of the second recess 211b and the fourth recess 211d, so that the second protrusion 121b can engage with the second recess 211b and the fourth recess, respectively. In Figure 6b, the second protrusion 121b is already engaged with the fourth recess 211d, so the second cartridge 2b is docked to the second docking portion 120b. Furthermore, as shown in Figure 7b, the dimensions of the second protrusion 121b perpendicular to the insertion direction 3 of the second cartridge 2b, or more precisely, the angular dimension of the second protrusion 121b in the cross-sectional region BB from Figure 6b, correspond to the angular dimension of the fourth recess 211d (or are slightly smaller, as shown in Figure 7b), so the second protrusion 121b can engage with the fourth recess 211d. Similarly, the angular dimension of the second protrusion 121b in the cross-sectional region BB corresponds to the angular dimension of the second recess 211b (although not shown in Figure 7b), so the second protrusion 121b can engage with the second recess 211b.

[0087] However, from Figures 6a and 5b, it is clear that the height of the second protrusion 121b is greater than the height of the first protrusion 121a, and in particular, greater than the heights of the first recess 211a and the third recess 211c. Therefore, the second protrusion 121b cannot engage with either the first recess 211a or the third recess 211c. As a result, the second cartridge 2b cannot dock with the first docking portion 120a.

[0088] Furthermore, from Figures 7a and 6b, it is clear that the angular dimension of the first protrusion 121a is larger than that of the second protrusion 121b, and in particular, larger than that of the fourth recess 211d. Similarly, the angular dimension of the first protrusion 121a is larger than that of the second recess 211b (although the second recess 211b is not shown in Figure 7b). Therefore, the first protrusion 121a cannot engage with either the second recess 211b or the fourth recess 211d. As a result, the first cartridge 2a cannot be docked with the second docking portion 120b.

[0089] Finally, Figure 6b also shows the drain surface 230 of the second cartridge 2b. The drain surface 230 of the second cartridge 2b is inclined at an angle α with respect to the drainage direction 4 of the treatment agent from the second cartridge 2b, where α is greater than 0° and less than 90°. As shown in Figure 6b, in this embodiment, α is approximately or exactly 80° and β is approximately or exactly 10°, such that the drain surface 230 is inclined at an angle β = 90° - α with respect to the horizontal lower boundary surface of the second cartridge 2b. The same applies to the drain surface 230 of the first cartridge 2a shown in Figure 6a.

[0090] The features disclosed in the preceding description, figures, and claims are important for carrying out the invention in various embodiments and can be carried out individually or in any combination. [Explanation of Symbols]

[0091] 1. Dishwasher 2 cartridges 2a First cartridge 2b Second cartridge 3. Insertion direction of the cartridge 4. Drainage direction of the treated liquid 110 Washing section 111a First dispensing device 111b Second dispensing device 111c Third dispensing device 111d Fourth dispensing device 112 Washing basket 120 Docking section 120a First docking section 120b Second docking section 121a First identification / fastening part, first protrusion 121b Second identification / fastening part, second protrusion 130a First connection section 130b Second connection section 140 storage units 141 Opening 142 Opening / Closing Section 150 Reservoir 151 Sensors 160 valve 170 Control Unit 180 Washing Tank 181 Heating device 182-screen system 183 Supply Line 1 183a First medication pump 185 First dispensing line 185a Washing pump 190 boilers 191 Heating device 193 Second Supply Line 193a Second medication pump 195 Second dispensing line 195a Rinse pump 210a First cartridge side closing section 210b Second cartridge side closing section 211a First fitting stopper portion, first recess 211b Second fitting stopper portion, second recess 211c Third fitting stopper portion, third recess 211d Fourth fitting stopper portion, fourth recess 220 Outlet 230 Discharge surface 310 Drain pipe 310a Drainage pump 330 Water supply pipe 340 Solenoid valve 350 Water supply safety device

Claims

1. A washing area (110) having one or more dispensing devices (111a-d), A docking section (120) for docking multiple cartridges (2) for multiple processing agents, Each comprises a plurality of connection parts (130) for directly or indirectly connecting the corresponding cartridge (2) docked to the docking part (120) to one or more dispensing devices (111a-d), or to the washing tank (180) or boiler (190) of the dishwasher (1), for using the plurality of processing agents for one or more washing processes of the dishwasher (1), The docking section (120) comprises a first docking section (120a) for docking with the first cartridge (2a) and a second docking section (120b) for docking with the second cartridge (2b). The first cartridge (2a) is not dockable with the second docking unit (120b), and / or the second cartridge (2b) is not dockable with the first docking unit (120a), The first docking portion (120a) includes a first identification and fastening portion (121a) that i) engages with a first fitting fastening portion (211a) of the first cartridge (2a) to identify the first cartridge (2a), and ii) engages with a third fitting fastening portion (211c) of the first cartridge (2a) to dock the identified first cartridge (2a) to the first docking portion (120a), The second docking portion (120b) includes a second identification and fastening portion (121b) that i) engages with a second fitting fastening portion (211b) of the second cartridge (2b) to identify the second cartridge (2b), and ii) engages with a fourth fitting fastening portion (211d) of the second cartridge (2b) to dock the identified second cartridge (2b) to the second docking portion (120b), The size, shape, and / or material of the first identification / fastening portion (121a) is different from the size, shape, and / or material of the second identification / fastening portion (121b). Dishwasher (1).

2. The docking section (120) is positioned to move back and forth relative to the washing section (110) between a docking position for docking the plurality of cartridges (2) and an operating position for connecting the docked plurality of cartridges (2) to one or more dispensing devices (111a-d), the washing tank (180), or the boiler (190) by the plurality of connecting sections (130), and the operating position is different from the docking position. The dishwasher (1) according to claim 1.

3. When the docking portion (120) is in the operating position, at least one docking portion (120) corresponding to the connecting portion (130) is arranged to move back and forth between a first position and a second position in the following manner: when the connecting portion (130) is in the first position, the corresponding cartridge (2) is not connected to the one or more dispensing devices (111a-d), the cleaning tank (180), or the boiler (190); when the connecting portion (130) is in the second position, the corresponding cartridge (2) is connected to the one or more dispensing devices (111a-d), the cleaning tank (180), or the boiler (190). The dishwasher (1) according to claim 2.

4. Furthermore, it includes a storage section (140) having an opening (141) for inserting the plurality of cartridges (2) into the dishwasher (1), and an opening / closing section (142), The opening / closing part (142) is arranged to be movable back and forth between an open position for opening the opening (141) and a closed position for closing the opening (141). The opening / closing part (142) is connected to the docking part (120) such that when the opening / closing part (142) is in the open position, the docking part (120) is in the docking position, and when the opening / closing part (142) is in the closed position, the docking part (120) is in the operating position. A dishwasher (1) according to claim 2 or 3.

5. The system includes at least one reservoir (150) for holding the processing agent in at least one cartridge (2) and for dispensing the processing liquid to one or more dispensing devices (111a-d), the washing tank (180), or the boiler (190), The reservoir (150) is equipped with a sensor (151) for determining the amount of the processing agent in the reservoir (150). A dishwasher (1) according to any one of claims 1 to 4.

6. The system is configured to issue a warning signal when the amount of the processing agent in the reservoir (150), as determined by the sensor (151), falls below a first lower limit. The dishwasher (1) according to claim 5.

7. Furthermore, it includes a valve (160) and a control unit (170), The valve (160) is designed such that i) when the valve (160) is open, the processing agent from the cartridge (2) can enter the reservoir (150), and ii) when the valve (160) is closed, the processing agent from the cartridge (2) cannot enter the reservoir (150). The control unit (170) is configured to open and close the valve (160) based on the amount of processing liquid in the reservoir (150) determined by the sensor (151). The dishwasher (1) according to claim 6.

8. When the amount of the processing agent in the reservoir (150), as determined by the sensor (151), falls below the second lower limit, the control unit (170) is set to open the valve (160), and the second lower limit is greater than the first lower limit. The dishwasher (1) according to claim 7.

9. When the amount of the processing agent in the reservoir (150), as determined by the sensor (151), exceeds the maximum value, the control unit (170) is set to close the valve (160), and the maximum value is greater than the first lower limit and / or greater than the second lower limit. The dishwasher (1) according to claim 8.

10. The plurality of cartridges (2) comprises at least a first cartridge (2a) and a second cartridge (2b), The first cartridge (2a) is provided with a first fitting fastener portion (211a) for engaging with the first identification and fastener portion (121a), The second cartridge (2b) is provided with a second fitting fastener portion (211b) for engaging with the second identification / fastener portion (121b), The size, shape, and / or material of the first fitting stopper portion (211a) differ from the size, shape, and / or material of the second fitting stopper portion (211b). The first cartridge (2a) further comprises a third fitting stopper portion (211c) for engaging with the first identification / stopper portion (121a), wherein the size, shape and / or material of the third fitting stopper portion (211c) is the same as that of the first fitting stopper portion (211a), and the third fitting stopper portion (211c) and the first fitting stopper portion (211a) are spaced apart from each other in the insertion direction (3) of the first cartridge (2a) into the dishwasher (1). The second cartridge (2b) further comprises a fourth fitting fastener portion (211d) for engaging with the second identification / fastener portion (121b), wherein the size, shape and / or material of the fourth fitting fastener portion (211d) is the same as that of the second fitting fastener portion (211b), and the fourth fitting fastener portion (211d) and the second fitting fastener portion (211b) are spaced apart from each other in the insertion direction (3) of the second cartridge (2b) into the dishwasher (1). A system comprising a plurality of cartridges (2) of a plurality of processing agents for a dishwasher (1) according to any one of claims 1 to 4.

11. A dishwasher (1) according to any one of claims 1 to 4, The system comprises a plurality of cartridges (2) as described in claim 10, Dishwashing system.

12. The plurality of cartridges (2) have the same shape, size and / or maximum holding capacity for each of the processing agents. The dishwashing system according to claim 11.

13. The plurality of cartridges (2) comprises at least a first cartridge (2a) and a second cartridge (2b), The first cartridge (2a) is provided with a first fitting fastener portion (211a) for engaging with the first identification and fastener portion (121a), The second cartridge (2b) is provided with a second fitting fastener portion (211b) for engaging with the second identification / fastener portion (121b), The size, shape, and / or material of the first fitting stopper portion (211a) differ from the size, shape, and / or material of the second fitting stopper portion (211b). The first cartridge (2a) further comprises a third fitting stopper portion (211c) for engaging with the first identification / stopper portion (121a), wherein the size, shape and / or material of the third fitting stopper portion (211c) is the same as that of the first fitting stopper portion (211a), and the third fitting stopper portion (211c) and the first fitting stopper portion (211a) are spaced apart from each other in the insertion direction (3) of the first cartridge (2a) into the dishwasher (1). The second cartridge (2b) further comprises a fourth fitting fastener portion (211d) for engaging with the second identification / fastener portion (121b), wherein the size, shape and / or material of the fourth fitting fastener portion (211d) is the same as that of the second fitting fastener portion (211b), and the fourth fitting fastener portion (211d) and the second fitting fastener portion (211b) are spaced apart from each other in the insertion direction (3) of the second cartridge (2b) into the dishwasher (1). A system comprising a plurality of cartridges (2) of a plurality of processing agents for a dishwasher (1) according to any one of claims 5 to 9.

14. A dishwasher (1) according to any one of claims 5 to 9, The system comprises a plurality of cartridges (2) as described in claim 13, Dishwashing system.

15. The plurality of cartridges (2) have the same shape, size and / or maximum holding capacity for each of the processing agents, The dishwashing system according to claim 14.

16. At least one of the plurality of cartridges (2) comprises an outlet (220) and a drain surface (230) designed so that when the cartridge (2) is connected to one or more dispensing devices (111a-d), the washing tank (180), or the boiler (190) by a corresponding connection (130), the processing agent from the cartridge (2) can be discharged along one or more drain surfaces (230) in the direction of the outlet (220), and the cartridge (2) can be used up by passing through the outlet (220) so that it flows into one or more dispensing devices (111a-d) or into the washing tank (180), the boiler (190), or the reservoir (150), at least one of the outlet surfaces (230) or each outlet surface (230) is inclined at angles greater than 0° and less than 90° with respect to the discharge direction (4) of the processing agent from the cartridge (2), The dishwashing system according to claim 14 or 15.

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