Drive unit for dish washing machines
AssigneeLG Electronics Inc.
InventorsSi Jeon, Tae Lee, Young Park
Life of this patent
Estimating the term…
Abstract
A drive unit for dish washing machines includes a flow channel housing, a filter housing and an arm holder, which are thermally fused to one another to form an integral unit. Consequently, assembly of the drive unit is simplified, leakage of wash water is prevented, and pumping performance is increased. Also, the flow channel housing, the filter housing and the arm holder are concurrently fixed to a pump housing of the drive unit by fixing members. Consequently, the assembly process of the drive unit is simplified, and the coupling force between the components of the drive unit is increased.
Claims16
A drive unit for dish washing machines, comprising:
- a sump for receiving wash water;
- a pump housing positioned inside the sump such that the pump housing is supported by the sump, the pump housing having a washing impeller located therein;
- a flow channel housing positioned to cover the top of the pump housing, the flow channel housing having flow channels for guiding some of the wash water pumped out from the washing impeller to washing arms and having a solid waste chamber for filtering some of the pumped-out wash water;
- a filter housing thermally fused to the upper part of the flow channel housingto define an integral housing, the filter housing having a filter opening, which corresponds to the solid waste chamber;
- and
- an arm holder thermally fused to the upper part of the flow channel housingto define an integral structure, the arm holder having a filter positioned to cover the filter opening of the filter housing.
A drive unit for dish washing machines, comprising:
- a sump for receiving wash water;
- a pump housing positioned inside the sump such that the pump housing is supported by the sump, the pump housing having a washing impeller located therein;
- a flow channel housing positioned to cover a top of the pump housing, the flow channel housing having flow channels for guiding some of the wash water pumped out from the washing impeller to washing arms and having a solid waste chamber for filtering some of the pumped-out wash water;
- a filter housing positioned to cover a top of the flow channel housing, the filter housing having a filter opening, which corresponds to the solid waste chamber, and collection holes communicating with the sump for conveying the wash water to the sump;
- an arm holder disposed above the flow channel housing, the arm holder including a filter positioned to cover the filter opening of the filter housing;
- and
- fixing members for securely attaching the pump housing, the flow channel housing, the filter housing and the arm holder to the sump, the fixing members extending into the sump through the arm holder, the filter housing, the flow channel housing and the pump housing.
A drive unit for dish washing machines, comprising:
- a sump for receiving wash water;
- a pump housing positioned inside the sump such that the pump housing is supported by the sump, the pump housing having a washing impeller located therein;
- a flow channel housing positioned to cover a top of the pump housing, the flow channel housing having flow channels for guiding some of the wash water pumped out from the washing impeller to washing arms, a solid waste chamber for filtering some of the pumped-out wash water, and a communication hole positioned such that the communication hole is spaced from the solid waste chamber and from the washing impeller, the communication hole communicating with the sump;
- a filter housing positioned to cover the top of the flow channel housing, the filter housing having a filter opening, which corresponds to the solid waste chamber, collection holes communicating with the sump for conveying the wash water to the sump, and a communication hole located in an area surrounded by the filter opening and the solid waste chamber;
- an arm holder positioned above the flow channel housing, the arm holder having a filter positioned to cover the filter opening of the filter housing;
- and
- fixing members for securely attaching the pump housing, the flow channel housing, the filter housing and the arm holder to the sump.
Dependencies are inferred from the claim text.