Apparatus for heating or cooling drinks

• US 5,842,353 A
• Filed: 12/13/1996
• Issued: 12/01/1998
• Est. Priority Date: 12/13/1996
• Status: Expired due to Fees

• Current Assignee: Lin Kuo-Liang
• Original Assignee: Lin Kuo-Liang
• Inventors: Kuo-Liang, Lin
• Primary Examiner(s): Sollecito, John M.
• Application Number:
  US08/764,215
• Time in Patent Office: 718 Days
• Field of Search: 62/3.64, 62/3.6, 62/3.3, 62/3.2, 62/457.3, 62/457.9, 62/190, 219/438, 219/432, 219/435, 219/385, 219/386, 219/387, 219/388, 219/425, 219/419, 219/441
• US Class Current: 62/190
• CPC Class Codes: A47G 19/2288 with means for keeping liquid cool or hot
• CPC Class Codes: A47J 36/2472 of the cordless type, i.e. whereby the cup can be plugged into an electrically-powered base element
• CPC Class Codes: F25B 21/04 reversible
• CPC Class Codes: F25D 2331/808 Glasses
• CPC Class Codes: H10N 10/00 Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects integrated devices or assemblies of multiple devices H10N19/00

Abstract

An liquid heating and cooling apparatus for heating or cooling liquid such as drinks is disclosed. The apparatus comprises a cup-shaped container for loading the liquid, a thermo device installed in the container for heating or cooling the liquid, and a base removably attached to the lower end of the container for supplying DC power to the thermo device and controlling the cooling or heating of the liquid by controlling the direction of the DC power supplied to the thermo device when the container is attached to the base.

Claims

1. Apparatus for heating or cooling liquid comprising:

(1) a cup-shaped thermo-resistent container for loading the liquid, the container comprising a lower end and an upper opening;

(2) a thermo device installed in the lower end of the container for heating or cooling the liquid;

(3) a heat sink installed on the lower end of the container attached under the thermo device for increasing heat exchange efficiency of the thermo device; and

(4) a base having a recess which is removably attached to the lower end of the container for supplying DC (direct current) power to the thermo device and controlling the cooling or heating of the liquid by controlling the direction of the DC power supplied to the thermo device;

wherein the DC power is supplied to thermo device when the lower end of the container is attached to the recess of the base and the DC power is disconnected when the container is removed from the base.

2. The apparatus of claim 1 wherein the base comprises an opening installed at one side of the recess for providing air ventilation to the heat sink when the lower end of the container is attached to the recess.

3. The apparatus of claim 2 wherein the base further comprises an electric fan installed at the other side of the recess opposite to the opening for creating an air flow through the heat sink and the opening to increase the heat dissipation capability of the heat sink.

4. The apparatus of claim 1 wherein the container comprises a latch means installed over its lower end, and wherein the base further comprises a latch receiving means installed in the recess for receiving the latch means, wherein the latch means of the container is removably latched to the latch receiving means of the base when the lower end of the container is attached to the recess of the base.

5. The apparatus of claim 1 wherein the container comprises a heat conductive layer installed inside the container which is in contact with the thermo device for increasing heat exchange efficiency between the thermo device and the liquid and also for isolating the thermo device from the liquid.

6. The apparatus of claim 1 further comprising a thermo-resistent cap removably attached to the upper opening of the container for maintaining the temperature of the liquid.

7. The apparatus of claim 1 wherein the apparatus is a liquid cooling and heating apparatus for heating or cooling the liquid.

8. Apparatus for heating or cooling liquid comprising:

(1) a cup-shaped thermo-resistent container for loading the liquid, the container comprising a lower end and an upper opening;

(2) a thermo device installed in the lower end of the container for heating or cooling the liquid;

(3) a heat conductive pad installed on the lower end of the container attached under the thermo device;

(4) a base having a recess which is removably attached to the lower end of the container for supplying DC (direct current) power to the thermo device and controlling the cooling or heating of the liquid by controlling the direction of the DC power supplied to the thermo device; and

(5) a heat sink installed in the recess for contacting the heat conductive pad and conducting heat out of or into the thermo device through the heat conductive pad when the lower end of the container is attached to the recess;

wherein the DC power is supplied to thermo device when the lower end of the container is attached to the recess of the base and the DC power is disconnected when the container is removed from the base.

9. The apparatus of claim 8 wherein the base further comprises a flexible pad made of heat conductive material fixedly installed on top of the heat sink for contacting the heat conductive pad of the container to increase heat conductivity between the heat sink of the base and the heat conductive pad of the container.

10. The apparatus of claim 8 wherein the base comprises an opening installed at one side of the base for ventilating air through the heat sink.

11. The apparatus of claim 10 wherein the base further comprises an electric fan installed at the other side of the base opposite to the opening for creating an air flow through the heat sink and the opening to increase the heat dissipating capability of the heat sink.

12. Apparatus for heating or cooling liquid comprising:

(1) a cup-shaped thermo-resistent container for loading the liquid, the container comprising a lower end and an upper opening;

(2) a thermo device installed in the lower end of the container for heating or cooling the liquid; and

(3) a temperature sensor for sensing the temperature of the liquid;

(4) a base having a recess which is removably attached to the lower end of the container for supplying DC (direct current) power to the thermo device and controlling the cooling or heating of the liquid by controlling the direction of the DC power supplied to the thermo device; and

(5) a control circuit installed in the base which is electrically connected to the temperature sensor and the thermo device when the lower end of the container is attached to the base for controlling the heating or cooling of the liquid;

wherein the DC power is supplied to thermo device when the lower end of the container is attached to the recess of the base and the DC power is disconnected when the container is removed from the base.

13. The apparatus of claim 12 wherein the sensor comprises an electrical connector installed on the lower end of the container, and the control circuit comprises a corresponding connector for removably connecting the connector of the sensor wherein the connectors of the sensor and the control circuit are connected together when the lower end of the container is attached to the base.

14. The apparatus of claim 12 wherein the thermo device comprises an electrical connector installed on the lower end of the container, and the control circuit comprises a corresponding connector for removably connecting the connector of the thermo device wherein the connectors of the thermo device and the control circuit are connected together when the lower end of the container is attached to the base.

15. The apparatus of claim 12 wherein the control circuit comprises a bi-directional circuit for supplying DC powers of various directions to the thermo device.

16. The apparatus of claim 15 wherein the base further comprises a temperature setting means electrically connected to the control circuit for setting a target temperature by a user and wherein the control circuit uses the bi-directional circuit and the temperature sensor to control the heating or cooling of the liquid to achieve the target temperature.

17. The apparatus of claim 12 wherein the control circuit uses a pulse width modulation method (PWM) to control the supplying of the DC power to the thermo device to achieve the target temperature.

18. The apparatus of claim 12 wherein the base comprises a temperature display electrically connected to the control circuit for displaying the temperature of the liquid sensed by the sensor.