Operating device for an electrical appliance

• US 8,217,292 B2
• Filed: 01/20/2010
• Issued: 07/10/2012
• Est. Priority Date: 01/22/2009
• Status: Expired due to Fees

• Current Assignee: EGO Elektro-Gerã¤Tebau GmbH (EGO Blanc und Fischer & Company GmbH)
• Original Assignee: EGO Elektro-Gerã¤Tebau GmbH (EGO Blanc und Fischer & Company GmbH)
• Inventors: Hamm, Wolfgang Alfred
• Primary Examiner(s): Hammond, Briggitte R
• Application Number:
  US12/690,523
• Publication Number:
  US 20100181181A1
• Time in Patent Office: 902 Days
• Field of Search: 200/600, 200/339
• US Class Current: 200/600
• CPC Class Codes: H01H 2003/0293 with an integrated touch switch
• CPC Class Codes: H01H 2003/085 Retractable turn knobs, e.g. flush mounted
• CPC Class Codes: H01H 2221/01 also rotatable
• CPC Class Codes: H01H 2239/006 Containing a capacitive switch or usable as such
• CPC Class Codes: H01H 3/08 Turn knobs
• CPC Class Codes: H03K 17/962 Capacitive touch switches
• CPC Class Codes: H03K 17/965 Switches controlled by moving an element forming part of the switch

Abstract

An operating device for an electrical appliance comprises a control panel and an operating element arranged in the control panel for operation by rotary actuation. The operating element is mounted in a cup-like receptacle, at least one additional touch-sensitive switch being arranged in a region of the control panel adjacent to or around the operating element. Advantageously, this is a capacitive touch-sensitive switch with a capacitive sensor element.

Claims

1. An operating device for an electrical appliance comprising:

a control panel and an operating element arranged in said control panel for operation by rotary actuation, said operating element being mounted in a cup-like receptacle, wherein at least one additional touch-sensitive switch is arranged in a region of said control panel adjacent to said operating element or around said operating element, and

wherein said touch-sensitive switch is a capacitive touch-sensitive switch with an electrically conductive capacitive sensor element,

wherein an electrical supply lead is incorporated into said receptacle of said operating element as a connection to said touch-sensitive switch or said electrically conductive sensor element thereof, said receptacle being arranged behind said control panel and bearing at a rear end a switching device actuatable with said operating element by rotary actuation.

2. The operating device as claimed in claim 1, wherein said electrically conductive capacitive sensor element is electrically insulated on an outside or on a front of said control panel.

3. The operating device as claimed in claim 1, wherein said electrically conductive sensor element is made up of flat material and is attached as a separate part to said control panel or to said receptacle.

4. The operating device as claimed in claim 1, wherein an electrical supply lead or connector is provided as an electrically conductive coating on a surface of said receptacle.

5. The operating device as claimed in claim 1, wherein an electrical connection from said electrical supply lead or connector on said receptacle to an operating element switching device arranged at said rear end of said receptacle is provided for electrical connection of said touch-sensitive switch to said rear end of said switching device.

6. The operating device as claimed in claim 1, wherein a plurality of additional touch-sensitive switches are provided on said control panel around said operating element, a separate electrical supply lead or connector with a separate terminal being provided for each separate touch-sensitive switch.

7. The operating device as claimed in claim 1, wherein said operating device is inserted into said control panel of said electrical appliance.

8. The operating device as claimed in claim 1, wherein said touch-sensitive switch or said electrically conductive capacitive sensor element thereof is arranged on a collar-like portion of said receptacle around said operating element.

9. The operating device as claimed in claim 8, wherein said collar-like portion covers said touch-sensitive switch or said electrically conductive capacitive sensor element of said touch-sensitive switch.