Detergent supply device and laundry treatment apparatus having the same

The detergent supply device addresses residual detergent and user convenience by using a drawer with a discharge valve and separate flow passages, and a pump to efficiently supply detergent, enhancing maintenance and durability in laundry treatment apparatus.

US20250101660A1Pending Publication Date: 2025-03-27LG ELECTRONICS INC
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Patent Information

Application Number
US18/732370
Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
Priority Date
2023-09-26
Filing Date
2024-06-03
Publication Date
2025-03-27

AI Technical Summary

Technical Problem

Conventional detergent supply devices face issues with residual detergent in the flow passage and require frequent user intervention for detergent addition, and the durability of mounting sensing parts is a concern.

Method used

The proposed detergent supply device includes a drawer with a storage portion and a discharge valve, a housing with separate chambers and flow passages, and a pump to efficiently move detergent from the storage to the tub, minimizing residual detergent and enhancing maintenance and durability of the mounting sensing part.

Benefits of technology

This design minimizes residual detergent, simplifies maintenance, and increases the durability of the mounting sensing part, providing a more efficient and user-friendly detergent supply system for laundry treatment apparatus.

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Abstract

Disclosed herein is a detergent supply device including a drawer including a body having a storage portion configured to store detergent, and a discharge valve provided in the body to discharge the detergent out of the storage portion, a housing including a first chamber allowing the body to be withdrawably accommodated therein, a second chamber connected to the first chamber through a connecting flow passage, and a chamber discharge portion configured to discharge a material from the first chamber, a pump fixed to the housing to be connected to the discharge valve when the body is inserted into the first chamber, a first flow passage providing a path for movement of water along a direction orthogonal to a withdrawal direction of the body to supply water to the first chamber, and a second flow passage branching from the first flow passage to supply water to the second chamber.
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