Torque Tool Power Amplifier for Energy Storage
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Solution Overview
Problem
Existing torque wrenches have a high energy requirement due to electrically controlled locking mechanisms, limiting the number of releases that can be made with conventional batteries or accumulators, as they require strong energy consumers to move locking bolts against applied forces and spring forces.
Innovation Solution
A power amplifier is used to amplify mechanical and electrical power for the trigger switch, with an energy store for intermediate storage and rapid release of energy to deliver the required power for triggering, allowing for a reduction in energy consumption and increasing the number of releases possible with conventional batteries or accumulators.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electrically controlled locking mechanisms are used in torque wrenches, then the triggering function is improved, but the energy consumption increases significantly
Solution Approach 1:
The energy store (capacitor) is charged in advance during normal operation, storing energy that can be rapidly discharged when triggering is needed. This preliminary energy accumulation allows the locking mechanism to be actuated without requiring continuous high power consumption from the battery during the triggering event itself.
Solution Approach 2:
The system uses periodic charging of the energy store during normal operation, followed by intermittent discharging during triggering events. This periodic charge-discharge cycle allows the system to maintain low average power consumption while providing high peak power when needed for triggering.
2Reliability
If strong electromagnets are used to move locking bolts, then the triggering reliability is improved, but the battery life is reduced
Solution Approach 1:
The capacitor is charged in advance during normal operation, storing energy that can be rapidly discharged when triggering is needed. This preliminary energy accumulation allows the locking mechanism to be actuated without requiring continuous high power consumption from the battery during the triggering event itself.
Solution Approach 2:
The energy store (capacitor) acts as an intermediary between the battery and the electromagnet. It receives energy from the battery during charging and delivers high peak power to the electromagnet during triggering, decoupling the low average power consumption of the battery from the high peak power requirements of the electromagnet.
3Ease of operation
If conventional batteries are used in torque wrenches, then the device portability is improved, but the number of releases is limited
Solution Approach 1:
The energy store (capacitor) is charged in advance during normal operation, storing energy that can be rapidly discharged when triggering is needed. This preliminary energy accumulation allows the locking mechanism to be actuated without requiring continuous high power consumption from the battery during the triggering event itself.
Solution Approach 2:
The system uses periodic charging of the energy store during normal operation, followed by intermittent discharging during triggering events. This periodic charge-discharge cycle allows the system to maintain low average power consumption while providing high peak power when needed for triggering.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The power amplifier ensures that the necessary power is available for triggering the torque tool, reducing energy consumption and enabling more frequent or reliable operation without the need for continuous power sources, such as mains connection.
Implementation Method 1
a power amplifier for amplifying the mechanical and/or electrical power for the electronically or mechanically controlled trigger switch
Implementation Method 2
with an energy store for the intermediate storage and rapid release of energy in order to deliver the required power for a tripping process
Implementation Method 3
The mechanical torque is converted into an electronic signal with a strain gauge
Implementation Method 4
a magnetic coil surrounding the locking bolt is energized in such a way that the ferromagnetic locking bolt releases from the locking recess against a spring force
Implementation Method 5
The spring force is used to return the locking bolt to its original state after it has been triggered
Data Source
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AI summary
The invention relates to a torque tool (10) for measuring and/or triggering a tightening torque on a workpiece. The torque tool (10) has a housing (12) with a handle (14). The torque to be measured is transmitted via a rod (22). A measuring element (50) electronically detects the applied torque. A measuring and control electronic unit (52) processes the detected torque. The electronic measuring and control unit (52) controls a release switch (56) to trigger the torque tool (10).