Detergent Feeding Device and Washing Machine Having Same

This application is a continuation application is a continuation application, under 35 U.S.C. § 111 (a), of international application No. PCT/KR2024/002025, filed Feb. 13, 2024, which claims priority under 35 U. S. C. § 119 to Korean Patent Application No. 10-2023-0051011, filed Apr. 18, 2023, Korean Patent Application No. 10-2023-0085270, filed Jun. 30, 2023, the disclosures of which are incorporated herein by reference in their entireties.

The disclosure relates to a detergent feeding device that does not generate remaining water, and a washing machine having the same.

In general, a washing machine is a device that washes laundry by rotating a cylindrical rotating tub containing laundry and water. Such washing machines include drum washing machines, in which a rotating tub is horizontally arranged and rotates forward and backward about a horizontal axis to lift laundry along an inner circumferential surface of the rotating tub and drop the laundry for washing, and pulsator washing machines, in which a rotating tub equipped with a pulsator is vertically arranged and rotates forward and backward about a vertical axis to wash laundry using a water flow generated by the pulsator.

In such drum washing machines or pulsator washing machines, a detergent feeding device is installed at an upper portion of the washing machine to dissolve detergent using water supplied from an external water source into the rotating tub and to supply the detergent-mixed water into the rotating tub.

The detergent feeding device is equipped with a mixing device that rotates within a detergent drawer to improve the dissolving ability of the detergent, and the water is discharged through a siphon channel provided within the mixing device. However, the water flowing through the siphon channel provided within the rotating mixing device does not cause a siphon effect due to the vortex generated by rotation, resulting in the water frequently remaining in the detergent drawer.

An embodiment of the present disclosure provides a detergent feeding device that does not generate remaining water and a washing machine having the same.

A washing machine according to an embodiment of the disclosure includes a case including a receiving portion configured to receive a detergent and an outlet provided on a bottom surface of the receiving portion, a siphon tube protruding from the bottom surface of the receiving portion and having a first flow path in communication with the outlet, a siphon cap configured to cover an outer side of the siphon tube to form a second flow path allowing the receiving portion and the first flow path to be in communication with each other, the siphon cap having an agitating blade configured to be rotated by water supplied to the receiving portion to agitate the water received in the receiving portion, and a plurality of support ribs extending from an inner surface of the siphon cap toward the siphon tube and configured to be supported by the siphon tube, wherein a cross-section of a corner at which the plurality of support ribs and the inner surface of the siphon cap meet has a curved shape.

A washing machine according to an embodiment of the disclosure includes a cabinet, a tub disposed inside the cabinet; a detergent feeding device configured to supply detergent into the tub, and a water supply device configured to supply water to the detergent feeding device, wherein the detergent feeding device includes a case including a siphon tube having a first flow path communicating with an outlet provided on a bottom of a receiving portion configured to receive a detergent, a siphon cap rotatably supported on the siphon tube to be rotated by the water supplied by the water supply device to agitate the water in the receiving portion, the siphon cap forming a second flow path communicating with the first flow path, and a plurality of support ribs positioned in the second flow path to support the siphon cap relative to the siphon tube, wherein a cross-section of a corner at which the plurality of support ribs and an inner surface of the siphon cap meet may have a rounded shape.

According to various embodiments of the present disclosure, it is possible to prevent water from remaining in the detergent feeding device.

Various embodiments of the disclosure and terms used herein are not intended to limit the technical features described herein to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of the corresponding embodiments.

In describing of the drawings, similar reference numerals may be used for similar or related elements.

The singular form of a noun corresponding to an item may include one or more of the items unless clearly indicated otherwise in a related context.

In the disclosure, phrases, such as “A or B”, “at least one of A and B”, “at least one of A or B”, “A, B or C”, “at least one of A, B and C”, and “at least one of A, B, or C” may include any one or all possible combinations of the items listed together in the corresponding phrase among the phrases.

As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items.

Terms such as “1st”, “2nd”, “primary”, or “secondary” may be used simply to distinguish an element from other elements, without limiting the element in other aspects (e.g., importance or order).

When an element (e.g., a first element) is referred to as being “(functionally or communicatively) coupled” or “connected” to another element (e.g., a second element), the first element may be connected to the second element, directly (e.g., wired), wirelessly, or through a third element.

It will be understood that when the terms “includes”, “comprises”, has”, “including”, “comprising”, and/or “having” are used in the disclosure, they specify the presence of the specified features, figures, steps, operations, components, members, or combinations thereof, but do not preclude the presence or addition of one or more other features, figures, steps, operations, components, members, or combinations thereof.

When a given element is referred to as being “connected to”, “coupled to”, “supported by” or “in contact with” another element, it is to be understood that it may be directly or indirectly connected to, coupled to, supported by, or in contact with the other element. When a given element is indirectly connected to, coupled to, supported by, or in contact with another element, it is to be understood that it may be connected to, coupled to, supported by, or in contact with the other element through a third element.

It will also be understood that when an element is referred to as being “on” another element, it may be directly on the other element or intervening elements may also be present.

A washing machine according to various embodiments may perform washing, rinsing, spin-drying, and drying processes. The washing machine is an example of a clothes treating apparatus, and the clothes treating apparatus is a concept including a device capable of washing clothes (objects to be washed, and objects to be dried), a device capable of drying clothes, and a device capable of washing and drying clothes.

The washing machine according to various embodiments may include a top-loading washing machine in which a laundry inlet for inserting or removing laundry is provided to face upward, or a front-loading washing machine in which a laundry inlet is provided to face forward. The washing machine according to various embodiments may include a washing machine of a loading type other than the top-loading washing machine and the front-loading washing machine.

For the top-loading washing machine, laundry may be washed using water current generated by a rotating body such as a pulsator. For the front-loading washing machine, laundry may be washed by repeatedly lifting and lowering laundry by rotating a drum. The front-loading washing machine may include a dryer combined washing machine capable of drying laundry stored in a drum. The dryer combined washing machine may include a hot air supply device for supplying high-temperature air into the drum and a condensing device for removing moisture from air discharged from the drum. For example, the dryer combined washing machine may include a heat pump device. The washing machine according to various embodiments may include a washing machine using a washing method other than the above-described washing method.

The washing machine according to various embodiments may include a housing accommodating various components therein. The housing may be provided in the form of a box including a laundry inlet on one side thereof.

The washing machine may include a door for opening and closing the laundry inlet. The door may be rotatably mounted to the housing by a hinge. At least a portion of the door may be transparent or translucent to allow the inside of the housing to be visible.

The washing machine may include a tub disposed within the housing to store water. The tub may be formed in a substantially cylindrical shape with a tub opening formed on one side thereof. The tub may be disposed inside the housing in such a way that the tub opening corresponds to the laundry inlet.

The tub may be connected to the housing by a damper. The damper may absorb vibration generated when the drum rotates, and the damper may reduce vibration transmitted to the housing.

The washing machine may include a drum provided to accommodate laundry.

The drum may be disposed inside the tub such that a drum opening provided on one side of the drum corresponds to the laundry inlet and the tub opening. Laundry may pass sequentially through the laundry inlet, the tub opening, and the drum opening and then be received in the drum or removed from the drum.

The drum may perform each operation according to washing, rinsing, and/or spin-drying while rotating in the tub. A plurality of through holes may be formed in a cylindrical wall of the drum to allow water stored in the tub to be introduced into or to be discharged from the drum.

The washing machine may include a driving device configured to rotate the drum. The driving device may include a drive motor and a rotating shaft for transmitting a driving force generated by the drive motor to the drum. The rotating shaft may penetrate the tub to be connected to the drum.

The driving device may perform respective operations according to washing, rinsing, and/or spin-drying, or drying processes by rotating the drum in a forward or reverse direction.

The washing machine may include a water supply device configured to supply water to the tub. The water supply device may include a water supply pipe and a water supply valve disposed in the water supply pipe. The water supply pipe may be connected to an external water supply source. The water supply pipe may extend from an external water supply source to a detergent feeding device and/or the tub. Water may be supplied to the tub through the detergent feeding device. Alternatively, water may be supplied to the tub without passing through the detergent feeding device.

The water supply valve may open or close the water supply pipe in response to an electrical signal from a controller. The water supply valve may allow or block the supply of water to the tub from an external water supply source. The water supply valve may include a solenoid valve configured to open or close in response to an electrical signal.

The washing machine may include the detergent feeding device configured to supply detergent to the tub. The detergent feeding device may include a manual detergent feeding device that requires a user to enter detergent to be used for each washing, and an automatic detergent feeding device that stores a large amount of detergent and automatically adds a predetermined amount of detergent during washing. The detergent feeding device may include a detergent container for storing detergent. The detergent feeding device may be configured to supply detergent into the tub during a water supply process. Water supplied through the water supply pipe may be mixed with detergent via the detergent feeding device. Water mixed with detergent may be supplied into the tub. Detergent is used as a term including detergent for pre-washing, detergent for main washing, fabric softener, bleach, etc., and the detergent container may be partitioned into a storage region for the pre-washing detergent, a storage region for the main washing detergent, a storage region for the fabric softener, and a storage region for the bleach.

The washing machine may include a drainage device configured to discharge water contained in the tub to the outside. The drainage device may include a drain pipe extending from a bottom of the tub to the outside of the housing, a drain valve disposed on the drain pipe to open or close the drain pipe, and a pump disposed on the drain pipe. The pump may pump water from the drain pipe to the outside of the housing.

The washing machine may include a control panel disposed on one side of the housing. The control panel may provide a user interface for interaction between a user and the washing machine. The user interface may include at least one input interface and at least one output interface.

The at least one input interface may convert sensory information received from a user into an electrical signal.

The at least one input interface may include a power button, an operation button, a course selection dial (or a course selection button), and a washing/rinsing/spin-drying setting button. The at least one input interface may include a tact switch, a push switch, a slide switch, a toggle switch, a micro switch, a touch switch, a touch pad, a touch screen, a jog dial, and/or a microphone.

The at least one output interface may visually or audibly transmit information related to the operation of the washing machine to a user.

For example, the at least one output interface may transmit information related to a washing course, operation time of the washing machine, and washing/rinsing/spin-drying settings to the user. Information about the operation of the washing machine may be output via a screen, an indicator, or a voice. The at least one output interface may include a liquid crystal display (LCD) panel, a light emitting diode (LED) panel, or a speaker.

The washing machine may include a communication module for wired and/or wireless communication with an external device.

The communication module may include at least one of a short-range wireless communication module and a long-range wireless communication module.

The communication module may transmit data to an external device (e.g., a server, a user device, and/or a home appliance) or receive data from the external device. For example, the communication module may establish communication with a server and/or a user device and/or a home appliance, and transmit and receive various types of data.

For the communication, the communication module may establish a direct (e.g., wired) communication channel or a wireless communication channel between the external devices, and support the performance of the communication through the established communication channel. According to an embodiment, the communication module may include a wireless communication module (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (e.g., a local area network (LAN) communication module, or a power line communication module). Among these communication modules, the corresponding communication module may communicate with an external device through a first network (e.g., a short-range wireless communication network such as Bluetooth, wireless fidelity (Wi-Fi) direct, or infrared data association (IrDA)) or a second network (e.g., a long-range wireless communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., LAN or wide area network WAN)). These various types of communication modules may be integrated as a single component (e.g., a single chip) or implemented as a plurality of separate components (e.g., multiple chips).

The short-range wireless communication module may include a Bluetooth communication module, a Bluetooth Low Energy (BLE) communication module, a near field communication module, a WLAN (Wi-Fi) communication module, and a Zigbee communication module, an IrDA communication module, a Wi-Fi Direct (WFD) communication module, an ultrawideband (UWB) communication module, an Ant+ communication module, a microwave (uWave) communication module, etc., but is not limited thereto.

The long-range wireless communication module may include a communication module that performs various types of long-range wireless communication, and may include a mobile communication circuitry. The mobile communication circuitry transmits and receives radio signals with at least one of a base station, an external terminal, and a server in a mobile communication network.

According to an embodiment, the communication module may communicate with an external device such as a server, a user device and other home appliances through an access point (AP). The AP may connect a LAN, to which a washing machine or a user device is connected, to a WAN to which a server is connected. The washing machine or the user device may be connected to the server via the WAN. The controller may control various components of the washing machine (e.g., the drive motor, and the water supply valve). The controller may control various components of the washing machine to perform at least one operation including water supply, washing, rinsing, and/or spin-drying according to a user input. For example, the controller may control the drive motor to adjust the rotational speed of the drum or control the water supply valve of the water supply device to supply water to the tub.

The controller may include hardware such as a CPU or memory, and software such as a control program. For example, the controller may include at least one memory for storing an algorithm and program-type data for controlling the operation of components in the washing machine, and at least one processor configured to perform the above-mentioned operation by using the data stored in the at least one memory. The memory and the processor may each be implemented as separate chips. The processor may include one or more processor chips or may include one or more processing cores. The memory may include one or more memory chips or one or more memory blocks. Alternatively, the memory and the processor may be implemented as a single chip.

Hereinafter, various embodiments according to the disclosure will be described in detail with reference to the accompanying drawings.

is a view illustrating a washing machine according to an embodiment of the present disclosure.