APPLIANCE WITH AUTOMATIC DOOR OPENER

• US 20140265805A1
• Filed: 03/15/2013
• Published: 09/18/2014
• Est. Priority Date: 03/15/2013
• Status: Abandoned Application

• Current Assignee: Whirlpool Corporation
• Original Assignee: Whirlpool Corporation
• Inventors: CHAMBERLIN, MICHAEL T.
• Application Number:
  US13/832,245
• Publication Number:
  US 20140265805A1
• Time in Patent Office: Days
• US Class Current: 312/405
• CPC Class Codes: E05F 15/73 responsive to movement or presence of persons or objects
• CPC Class Codes: F25D 23/028 Details
• CPC Class Codes: F25D 2700/04 Sensors detecting the presence of a person

Abstract

A system is provided for automatically opening the doors of appliances such as refrigerators and freezers. In one example, an appliance door handle includes a capacitive touch sensor. When a user touches the touch sensor, visual and audio indicators are activated. After a slight delay, a motor and drive mechanism opens the appliance door.

Claims

1. A refrigerator comprising:

a cabinet;

a door providing access to the interior of the cabinet;

a motor coupled to the door for opening the door;

a handle formed on the door; and

a capacitive touch switch formed on the handle for activating the motor when a user touches the capacitive touch switch.

2. The refrigerator of claim 1, further comprising an indicator light, wherein the indicator light is illuminated in response to a user activating the capacitive touch switch.

3. The refrigerator of claim 2, wherein the indicator light is integrated with the handle.

4. The refrigerator of claim 1, further comprising an audio device, wherein the audio device is triggered in response to a user activating the capacitive touch switch.

5. The refrigerator of claim 4, wherein the audio device is triggered prior to activating the motor.

6. The refrigerator of claim 1, further comprising delay circuitry for delaying the activation of the motor after a user touches the capacitive touch switch.

7. A refrigerator comprising:

a cabinet;

a door coupled to the cabinet, the door having an open position and a closed position;

a handle coupled to the door;

a motor coupled to the door for moving the door from the closed position to the open position; and

a touch switch formed on the handle, wherein the touch switch is electrically coupled to the motor for activating the motor in response to a touch from a user.

8. The refrigerator of claim 7, wherein the touch switch is a capacitance touch switch.

9. The refrigerator of claim 7, further comprising an indicator light formed on the refrigerator, wherein the indicator light is illuminated in response to a user touching the touch switch.

10. The refrigerator of claim 9, wherein the indicator light is integrated with the handle.

11. The refrigerator of claim 7, further comprising an audio signaling device, wherein the audio signaling device is activated in response to a user touching the touch switch.

12. The refrigerator of claim 10, wherein the audio signaling device is triggered prior to activating the motor.

13. The refrigerator of claim 7, further comprising delay circuitry coupled to the motor for delaying the activation of the motor after the touch switch is touched by a user.

14. A refrigerator comprising:

a cabinet;

a door coupled to the cabinet, the door having an open position and a closed position;

a handle coupled to the door;

a motor coupled to the door for moving the door from the closed position to the open position;

a touch switch formed on the handle of the door; and

a controller electrically coupled to the motor and touch switch, the controller including program code for controlling the operation of the motor, wherein the controller activates the motor causing the door to open in response to a user activating the touch switch.

15. The refrigerator of claim 14, wherein the touch switch is a capacitance touch switch.

16. The refrigerator of claim 14, wherein the controller delays the opening of the door for a first duration after the user activates the touch switch.

17. The refrigerator of claim 14, further comprising an indicator light electrically coupled to the controller, wherein the controller triggers the indicator light in response to a user activating the touch switch.

18. The refrigerator of claim 14, further comprising a piezoelectric element electrically coupled to the controller, wherein the controller triggers the piezoelectric element in response to a user activating the touch switch.