REFRIGIRATOR HAVING USER-CONTROLLED FUNCTIONS

• US 20080295529A1
• Filed: 07/07/2005
• Published: 12/04/2008
• Est. Priority Date: 07/07/2005
• Status: Active Grant

• Current Assignee: Sanyo E & E Corporation
• Original Assignee: Sanyo E & E Corporation
• Inventors: OZAKI, Kunimitsu, KAWAGUCHI, Tomoki
• Granted Patent: US 7,634,918 B2
• Time in Patent Office: Days
• US Class Current: 62/126
• CPC Class Codes: F25B 2600/0251 with on-off operation
• CPC Class Codes: F25B 2600/23 Time delays
• CPC Class Codes: F25B 49/022 Compressor control arrangements
• CPC Class Codes: F25D 2400/28 Quick cooling
• CPC Class Codes: F25D 2400/361 Interactive visual displays
• CPC Class Codes: F25D 2700/12 Sensors measuring the inside temperature
• CPC Class Codes: F25D 2700/16 Sensors measuring the temperature of products
• CPC Class Codes: F25D 29/00 Arrangement or mounting of control or safety devices

Abstract

A refrigeration device may provide a snooze feature, in which the compressor of the refrigeration device is turned off for a predetermined period of time in response to a user command. The refrigeration device may also provide a quick chill feature, in which the compressor of the refrigeration device is turned on for a predetermined period of time in response to a user command. User commands for controlling the operation of the refrigeration device may be provide through a control panel, a remote control or a network interface.

Claims

1. A refrigeration device having a control system for controlling a compressor of the refrigeration device, the control system being switchable among at least three states in response to user commands, the three states comprising a thermostat control state in which the compressor is turned on and off to maintain the interior of the refrigeration device near a target temperature, an off state in which the compressor is maintained continuously off for a first predetermined period of time, and an on state in which the compressor is maintained continuously on for a predetermined period of time.

2. The device claimed in claim 1, wherein the control system reverts from the off state to the thermostat controlled state after expiration of the first predetermined period of time.

3. The device claimed in claim 1, wherein the control system reverts from the on state to the thermostat controlled state after expiration of the second predetermined period of time.

4. The device claimed in claim 1, wherein the control system comprises:

a control logic circuit providing a control signal for controlling the state of the compressor;

a temperature detector located in the interior of the refrigeration device and providing a temperature detector signal to the control logic circuit; and

a control panel comprising a first switch corresponding to the off state and a second switch corresponding to the on state, the first switch and the second switch providing respective signals to the control logic circuit.

5. The device claimed in claim 4, wherein operation of the first switch during the thermostat control state causes the control system to enter the off state, and

wherein operation of the first switch during the off state causes the control system to enter the thermostat control state.

6. The device claimed in claim 4, wherein operation of the second switch during the thermostat control state causes the control system to enter the on state, and

wherein operation of the second switch during the on state causes the control system to enter the thermostat control state.

7. The device claimed in claim 4, wherein operation of the first switch during the on state causes the control system to enter the off state, and

wherein operation of the second switch during the off state causes the control system to enter the on state.

8. The device claimed in claim 4, wherein operation of the first switch during the on state causes the control system to enter the thermostat control state, and

wherein operation of the second switch during the off state causes the control system to enter the thermostat control state.

9. The device claimed in claim 4, wherein the control panel is located in the interior of the refrigeration device.

10. The device claimed in claim 4, wherein the control panel is located at the exterior of the refrigeration device.

11. The device claimed in claim 4, wherein the control panel further comprises a first indicator light associated with the first switch and a second indicator light associated with the second switch, and

wherein the control logic circuit supplies a signal to illuminate the first indicator light when the control system is in the off state, and supplies a signal to illuminate the second indicator light when the control system is in the on state.

12. The device claimed in claim 4, wherein the control logic circuit comprises a switching logic circuit and a timer logic circuit.

13. The device claimed in claim 1, wherein the control system comprises:

a programmable controller providing a control signal for controlling the state of the compressor;

a temperature detector providing a signal to the programmable controller representative of the interior temperature of the refrigeration device;

a temperature selector providing a signal to the microcontroller representative of an target temperature for the thermostat control mode; and

a control panel comprising a first switch corresponding to the off state and a second switch corresponding to the on state, the first switch and the second switch providing respective signals to the programmable controller.

14. The device claimed in claim 13, wherein the programmable controller comprises a microcontroller and a ROM storing programming code for causing the microcontroller to execute processing that comprises, in response to a user command, maintaining the compressor in the off state for the first predetermined period of time.

15. The device claimed in claim 13, wherein the programmable controller comprises a microcontroller and a ROM storing programming code for causing the microcontroller to execute processing that comprises, in response to a user command, maintaining the compressor in the on state for the second predetermined period of time.

16. The device claimed in claim 15, wherein the programming code further causes the microcontroller to execute processing the comprises terminating the on state if the detected interior temperature of the refrigeration device falls below a predetermined temperature.

17. The device claimed in claim 13, the control panel further comprising:

a display for displaying a remaining amount of time that the compressor will be maintained in the on state or the off state; and

one or more switches for adjusting the remaining amount of time.

18. The device claimed in claim 13, the control system further comprising a remote control receiver for providing a signal to the programmable controller representing a command transmitted from a remote control device,

wherein the control system is switchable among the thermostat control state, the on state and the off state in response to user commands received through the remote control receiver.

19. The device claimed in claim 18, wherein the remote control receiver is an infrared sensor.

20. The device claimed in claim 13, the control system further comprising a network interface providing a signal to the programmable controller received through a communications network,

wherein the control system is switchable among the thermostat control state, the on state and the off state in response to user commands received through the network interface.

21. A method for controlling the operation of a compressor in a refrigeration device, comprising:

executing a thermostat control mode in which the compressor is turned on and off in accordance with a target temperature and a detected interior temperature of the refrigeration device;

receiving a user command; and

in response to the user command, turning the compressor off for a predetermined period of time.

22. The method claimed in claim 21, wherein the predetermined period of time is specified by input received from the user.

23. The method claimed in claim 21, further comprising, after the predetermined period of time, returning to execution of the thermostat control mode.

24. The method claimed in claim 21, further comprising:

receiving a second user command; and

turning the compressor on for a second predetermined period of time.

25. A method for controlling the operation of a compressor in a refrigeration device, comprising:

executing a thermostat control mode in which the compressor is turned on and off in accordance with a target temperature and a detected interior temperature of the refrigeration device;

receiving a user command; and

in response to the user command, turning the compressor on for a predetermined period of time.

26. The method claimed in claim 25, wherein the predetermined period of time is specified by input received from the user.

27. The method claimed in claim 25, further comprising, after the predetermined period of time, returning to execution of the thermostat control mode.

28. The method claimed in claim 25, further comprising:

receiving a second user command; and

turning the compressor off for a second predetermined period of time.