Control device, particularly in the type of an electric switch for hand-held power tools

Abstract

The invention relates to a control device, particularly an electric switch (1) for use for a hand-held power tool, such as a hand-held power tool using a rechargeable battery and / or mains operation, for example drills, grinders, saws, planes, angle grinders and the like, comprising an electric motor. The switch (1) comprises a housing (2) for receiving at least one heat-generating power element, such as a power transistor, a MS-FET, a triac, or the like, which is particularly arranged in an electric circuit arrangement. The circuit arrangement is used, for example, to control and / or regulate the electric motor through a corresponding control and / or regulation of the electric load current flowing through the power element to the electric motor. The heat-generating power element and / or at least parts of the circuit arrangement are thermally conductively connected to a cooling body (6) disposed on the outside of the housing (2). The cooling body (6) comprises at least two regions, wherein the first region of the cooling body (6) is arranged in the housing (2) such that the heat-generating element and / or at least parts of the circuit arrangement are directly connected to the first region, and wherein the second region (12) of the cooling body (6) protrudes out of the housing (2), particularly in the manner of a lateral emergence on both sides out of the housing (2). Furthermore, an electric switch (1) having a resilient contact bearing is created, wherein the movement of the operating element (3) is deflected approximately in the transversal direction relative to the action on the contact system. Finally, the electric switch (1) can be provided with an on-blocking device (24) having a blocking member, wherein the blocking member comprises a plastic web.

Description

technical field [0001] The invention relates to a control unit according to the preamble of claim 1 or an electrical switch according to the preamble of claim 10 , 18 or 23 . Background technique [0002] Such a controller is primarily used as an electrical switch for a hand-held power tool with an electric motor, for example for a battery power tool and / or a mains power tool. These power tools may be drills, grinders, chainsaws, planers, angle grinders or the like. [0003] An electrical switch for a power tool is known from DE 195 08 925 A1, which has a housing for receiving electrical wiring for controlling and / or regulating an electric motor. Such a circuit arrangement can be an electronic assembly that controls and / or regulates the rotational speed of the electric motor, for example by means of pulse width modulation. Other individual cases for such electronic assemblies may be the control and / or regulation of the freewheel, for example by means of diodes, the control...

AI Technical Summary

Problems solved by technology

A metal pin, which is a comparatively expensive one-piece piece, is used as the locking element in such a locking mechanism

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