Liquid dispenser

Patent metadata

Field	Value
Publication number	US-12358774-B2
Application number	US-202217578962-A
Country	US
Kind code	B2
Filing date	Jan 19, 2022
Priority date	Jan 26, 2021
Publication date	Jul 15, 2025
Grant date	Jul 15, 2025

Abstract

A liquid dispenser, such as water purifier, may have a soft insulation material installed in a space between a rigid insulator surrounding a cold water tank assembly and a cover, the cold water tank accommodating a coolant therein and having a passage through which water passes to be cooled through a heat exchange with the coolant, and the soft insulation material thereby removing the space and improving a cooling effect.

First claim

What is claimed is:

1. A liquid dispenser comprising:
a case including a plurality of covers;
a cold liquid tank assembly provided in the case and configured to accommodate a coolant therein and to cool a liquid using the coolant;
a first insulator surrounding an outer surface of the cold liquid tank assembly; and
a second insulator provided in a space formed between the first insulator and a first cover positioned adjacent to the cold liquid tank assembly among the plurality of covers,
wherein the first insulator is relatively more rigid than the second insulator,
wherein the second insulator insulates the cold liquid tank assembly and reduces vibration and noise when the liquid dispenser is driven, and
wherein the first insulator and the second insulator are made of Polyurethane (PU).

2. The liquid dispenser of claim 1 , wherein the second insulator is attached to a predetermined area of a first surface of the first insulator facing the first cover.

3. The liquid dispenser of claim 2 , wherein:
the first cover and the first surface of the first insulator have respective curved shapes, and
the second insulator has a shape corresponding to the first cover and the first surface of the first insulator.

4. The liquid dispenser of claim 2 , further comprising an evaporator provided in the cold liquid tank assembly,
wherein the second insulator is attached to a first area of the first surface of the first insulator, the first area corresponding to an installation position of the evaporator.

5. The liquid dispenser of claim 1 , wherein the second insulator is attached to a predetermined area of an inner surface of the first cover.

6. The liquid dispenser of claim 1 , further comprising:
a thermal diffusion layer attached to a predetermined area of the second surface of the second insulator.

7. The liquid dispenser of claim 6 , wherein the thermal diffusion layer is a metal tape.

8. The liquid dispenser of claim 7 , wherein the metal tape is an aluminum tape.

9. The liquid dispenser of claim 6 , further comprising an evaporator provided in the cold liquid tank assembly,
wherein:
the second insulator is attached to an entire area of a first surface of the first insulator facing the first cover, and
the thermal diffusion layer is attached to a first area of the second surface of the second insulator, the first area corresponding to an installation position of the evaporator.

10. The liquid dispenser of claim 1 , further comprising:
a thermal diffusion layer attached to a predetermined area of one surface of the second insulator.

11. The liquid dispenser of claim 1 , wherein the second insulator is configured to be removable or to be replaceable from the space.

12. The liquid dispenser of claim 1 , further comprising:
a filter provided in the case and configured to filter the liquid.

13. The liquid dispenser of claim 1 , wherein the second insulator has a lower thermal conductivity than the first insulator.

14. A liquid dispenser comprising:
a cooled liquid tank assembly configured to accommodate a coolant therein, a liquid being cooled when passed through a passage positioned in the coolant;
a first insulator surrounding an outer surface of the cold liquid tank assembly;
a second insulator provided at an outer surface of the first insulator; and
a cover provided at an outer surface of the second insulator,
wherein the first insulator is relatively more rigid than the second insulator,
wherein the second insulator has a curved shape that corresponds to the outer surface of the first insulator and an inner surface of the cover,
wherein the second insulator insulates the cooled liquid tank assembly and reduces vibration and noise when the liquid dispenser is driven, and
wherein the first insulator and the second insulator are made of Polyurethane (PU).

15. The liquid dispenser of claim 14 , further comprising an evaporator provided in the cold liquid tank assembly, wherein a section of the second insulator is attached to at least one of the outer surface of the first insulator or the inner surface of the cover, a location of the section of the second insulator corresponding to a position of the evaporator in the cold liquid tank assembly.

16. The liquid dispenser of claim 14 , wherein the second insulator is coupled to a portion of the outer surface of the first insulator.

17. The liquid dispenser of claim 14 , wherein the second insulator is coupled to a portion of the inner surface of the cover.

18. The liquid dispenser of claim 14 , further comprising:
a thermal diffusion layer provided between the second insulator and the cover.

19. The liquid dispenser of claim 18 , further comprising an evaporator provided in the cold liquid tank assembly,
wherein:
the second insulator extends to cover the outer surface of the first insulator, and
the thermal diffusion layer covers a portion of the outer surface of the second insulator, a location of the portion corresponding to an installation position of the evaporator.

Assignees

• Lg Electronics Inc

Inventors

• Jung Ji Sun
• An Kwang Yong
• Park Jongwoo

Classifications

• B67D1/0859 Primary

  the evaporator being in direct heat contact with the beverage, e.g. placed inside a beverage container · CPC title

• B67D2001/0095

  Constructional details · CPC title

• B67D2210/00044

  Insulation · CPC title

• B67D2210/0001

  for liquid · CPC title

• B67D1/0804 Primary

  Shape or materials · CPC title