Solder Temperature Controller Lock Mechanism
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Solution Overview
Problem
Existing temperature controllers for solder handling devices lack a simple and effective mechanism for mechanically locking the set temperature, leading to potential thermal damage due to inadequate temperature settings during manual soldering operations.
Innovation Solution
A solder handling temperature controller with a rotating shaft and rotary knob that can be interlockingly rotated when a temperature lock key is inserted, allowing easy temperature setting and locking, and preventing changes when the key is withdrawn, ensuring the set temperature is maintained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a temperature lock mechanism is implemented to prevent unauthorized changes, then temperature stability is improved, but device complexity increases
Solution Approach 1:
The temperature lock key is inserted into a receptacle on the controller body, with the key itself containing the locking mechanism. When inserted, the key's protruding portion engages with the rotating shaft, nesting the locking function within the existing temperature adjustment components without adding separate complex locking systems.
Solution Approach 2:
The temperature lock key acts as an intermediary element between the operator and the temperature control system. The key's protruding portion mechanically couples the rotary knob to the rotating shaft, mediating the transmission of rotational motion only when the key is present, thereby enabling simple temperature adjustment while maintaining security.
2Reliability
If a digital authentication system with setting cards is used, then temperature control reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The patent replaces the digital authentication system with a purely mechanical locking mechanism. Instead of using electronic card readers and authentication codes, the system uses a physical temperature lock key that mechanically couples to the rotating shaft through its protruding portion, eliminating complex electronic systems while maintaining reliability.
Solution Approach 2:
The temperature lock key is a simple self-contained mechanical device that operators can use independently without requiring external authentication systems. The key itself contains all necessary locking functionality, allowing operators to securely lock and unlock temperature adjustments without assistance from specialized personnel or complex procedures.
3Ease of operation
If the temperature lock key mechanically couples the rotating shaft and rotary knob, then ease of operation for temperature adjustment is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is nested within the existing temperature adjustment components. The temperature lock key's protruding portion fits into a recess on the rotating shaft, and when inserted, it automatically couples the rotary knob to the rotating shaft through this nested arrangement, enabling easy operation without adding external complex mechanisms.
Data Source
AI summary
A solder handling temperature controller comprises a body (10) of the solder handling temperature controller, a rotating shaft (77) housed in the body (10) and adapted to be rotatable about its axis, a set temperature changing means (75) adapted to change a set temperature according to a rotation angle of the rotating shaft (77), a rotary knob (20) supported by the body (10) in a rotatable manner relative to the rotating shaft (77), and a temperature lock key (40) adapted to be selectively insertable into and withdrawable from the body (10) in a position coaxial with the rotating shaft (77) and the knob (20), and, in an inserted state thereof, to mechanically couple the rotating shaft (77) and the knob (20) together to allow them to be interlockingly rotated, wherein, when the temperature lock key (40) is withdrawn from the body (10), the coupling between the rotating shaft (77) and the knob (20) is released to prohibit the change of the set temperature by the rotation of the knob (20).