Stirring Device Comprising a Stirring Tool and a Drive Motor

• US 20140112092A1
• Filed: 03/28/2012
• Published: 04/24/2014
• Est. Priority Date: 05/27/2011
• Status: Abandoned Application

• Current Assignee: IKA-Werke GmbH & Co. KG
• Original Assignee: IKA-Werke GmbH & Co. KG
• Inventors: Eble, Erhard
• Application Number:
  US14/119,346
• Publication Number:
  US 20140112092A1
• Time in Patent Office: Days
• US Class Current: 366/142
• CPC Class Codes: B01F 33/5011 portable during use, e.g. hand-held
• CPC Class Codes: B01F 33/86 Mixing heads comprising a driven stirrer
• CPC Class Codes: B01F 35/212 of the driving system data, e.g. torque, speed or power data
• CPC Class Codes: B01F 35/221422 Speed of rotation of the mixing axis, stirrer or receptacle during the operation
• CPC Class Codes: B01F 35/3204 Motor driven, i.e. by means of an electric or IC motor
• CPC Class Codes: B01F 35/605 Safety devices concerning the operation of the mixer

Abstract

The invention relates to a stirring device (1) that comprises a stirring tool which can be introduced into a mass or liquid that is to be stirred, a drive motor (4) that drives said stirring tool, a housing (5) enclosing said drive motor (4) and a fastening point (6) for securing said stirring device in a working position. The stirring device (1) has at least one sensor (11) for detecting imbalances which preferably is linked or connected to the open- and closed-loop control systems of the drive motor (4), and which can switch off said drive motor (4) or change the speed thereof in the event of undesired or dangerous oscillations or vibrations.

Claims

1. Stirring device (1) comprising a stirring tool that can be introduced into a mass or liquid to be stirred, comprising a drive motor (4) driving the stirring tool, comprising a housing enclosing the drive motor (4), and comprising an attachment point (6) for fixing the stirring device (1) in the operating position, characterized in that the stirring device (1) has a sensor (11) that responds to imbalance.

2. Stirring device as set forth in claim 1, characterized in that the sensor that responds to imbalance is an acceleration sensor.

3. Stirring device as set forth in claim 1, characterized in that the sensor (11) (i) is provided with at least one of an acoustic display and an optical display, and a signal device or, (ii) controls such a display or device.

4. Stirring device as set forth in claim 1, characterized in that the sensor (11) that responds to imbalance is connected to an open-loop control or a feedback control of the drive motor (4) to one of (i) changes, the speed of the drive motor (4) upon overshooting of a threshold Of and (ii) switches the drive motor (4) off.

5. Stirring device as set forth in claim 1, characterized in that the sensor (11) is arranged on at least one of the housing (5) of the stirring device (1) and on at least one printed circuit board (10) arranged in the housing (5).

6. Stirring device as set forth in claim 4, characterized in that the sensor (11) for detecting an imbalance is arranged on one of the outside surface and the inside surface of the housing wall of the housing (5) enclosing the drive motor (4) and is connected to one of the open-loop control or and the feedback control of the drive motor (4).

7. Stirring device as set forth in claim 1, characterized in that the sensor (11) is arranged on the holder of the stirring device.

8. Stirring device as set forth in claim 1, characterized in that the sensor (11) is at least one of (i) piezo-based, inductive with plunger, and (iii) embodied by means of deflectable mass or by means of a strain gauge.