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US 12,324,553 B2Granted
Dishwasher
AssigneeLG Electronics Inc.
InventorsJinhong Kim, Youmin Lee, Jindong Kim
Life of this patent
Estimating the term…
Abstract
A dishwasher uses washing water containing microbubbles. The dishwasher includes a flow path forming rib that defines a washing water flow path inside an upper body and a lower body of a spray arm. The dishwasher further includes a fusion rib for fusion coupling the upper body and the lower body to effectively secure a flow path structure and simplify a fastening structure.
Claims20
A dishwasher comprising:
- a tub that defines a washing space;
- a sump disposed at a lower side of the tub and configured to store washing water;
- and
- a spray arm configured to discharge the washing water from the sump into the washing space,
- wherein the spray arm comprises a main body portion that defines (i) an opening configured to receive the washing water from the sump, (ii) a first flow path configured to carry the washing water, and (iii) a suction hole in fluid communication with the washing space, the spray arm being configured to discharge the washing water having passed through the first flow path into the washing space,
- wherein the first flow path comprises:
- a connection flow path configured to guide the washing water introduced through the opening of the main body portion,
- a buffer flow path fluidly connected to the connection flow path, wherein a cross-sectional area of the buffer flow path is larger than a cross-sectional area of the connection flow path,
- an air suction flow path fluidly connected to the buffer flow path and configured to guide air introduced from the washing space through the suction hole, and
- a discharge flow path fluidly connected to the air suction flow path, the discharge flow path having a discharge hole configured to discharge the washing water having passed through the air suction flow path toward the washing space, and wherein the buffer flow path comprises:
- an inlet configured to receive the washing water from the connection flow path, and
- an outlet configured to discharge the washing water in the buffer flow path to the air suction flow path.
9 more elements
A dishwasher comprising:
- a tub that defines a washing space;
- a sump disposed at a lower side of the tub and configured to store washing water;
- a pump configured to supply the washing water stored in the sump to the washing space;
- and
- a spray arm configured to discharge the washing water into the washing space, the spray arm having a suction hole and a discharge hole that are in fluid communication with an outside of the spray arm,
- wherein the spray arm comprises:
- a first blade that defines a spray flow path configured to carry the washing water therein, the first blade being configured to spray the washing water into the washing space,
- a second blade that defines a bubble generation flow path configured to generate bubbles therein, the second blade being configured to supply the washing water including the bubbles into the washing space, and
- a hub that defines a supply flow path configured to supply the washing water discharged from the pump to the spray flow path and the bubble generation flow path,
- wherein the bubble generation flow path comprises:
- a connection flow path connected to the supply flow path,
- a buffer flow path connected to the connection flow path, wherein a cross-sectional area of the buffer flow path expands and then contracts as the buffer flow path extends in a direction away from the connection flow path,
- an air suction flow path connected to the buffer flow path and configured to receive air introduced through from the suction hole, and
- a discharge flow path connected to the air suction flow path, wherein a cross-sectional area of the discharge flow path expands as the discharge flow path extends in a direction away from the air suction flow path, the discharge flow path being configured to guide the washing water to be discharged to the outside of the spray arm through the discharge hole,
- wherein the buffer flow path comprises:
- an inlet configured to receive the washing water from the connection flow path, and
- an outlet configured to discharge the washing water in the buffer flow path to the air suction flow path.
14 more elements
Dependencies are inferred from the claim text.