Built-In Motor Lock Body Layout for Compact Smart Door Installation
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Solution Overview
Problem
Existing smart door locks with external motors protrude from the door, requiring larger installation spaces and affecting aesthetics, and lack versatility in installation due to complex structures and limited installation space.
Innovation Solution
A full-automatic single bolt lock body with a built-in motor, featuring a drive unit integrated within the lock case, where the motor is positioned axially behind the lock bolt, allowing for reduced volume and flexible installation, with a drive spring and rotating shaft mechanism to control the lock bolt's extension and retraction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the motor is used externally in the handle or panel, then the lock bolt can be controlled to extend and retract, but the lock body protrudes from the door body requiring larger installation space and affecting aesthetics
Solution Approach 1:
The motor is integrated into the lock body structure, merging the drive unit with the lock mechanism. The motor is positioned in the lock case with its axial direction aligned with the lock bolt's telescopic movement direction, allowing the motor to directly drive the lock bolt without external protrusions.
Solution Approach 2:
The motor is arranged in the axial direction of the lock bolt, utilizing the existing spatial dimension of the lock bolt's movement path. This dimensional arrangement allows the motor to be positioned behind the lock bolt without increasing the overall protrusion distance, effectively utilizing the depth dimension of the lock body.
2Ease of operation
If the lock body has a complex structure with more parts, then the lock bolt can be controlled to extend and retract, but the installation space requirement increases and versatility decreases
Solution Approach 1:
The drive unit is integrated into the lock case, combining the motor, rotating shaft, drive spring, and reset spring into a unified assembly. This integration reduces the number of separate components and simplifies the overall structure while maintaining the lock bolt's extendable and retractable functionality.
Solution Approach 2:
The lock body is designed with a standardized integrated structure that can be adapted to different door body types and installation locations. The compact design with the motor positioned axially allows the same lock body to be installed in various positions and on different door types, enhancing versatility.
3Volume of moving object
If the motor is positioned axially behind the lock bolt, then the lock body volume is reduced and installation flexibility is improved, but the drive mechanism becomes more complex
Solution Approach 1:
The drive mechanism is segmented into distinct functional components: the motor for power generation, the rotating shaft for power transmission, the drive spring for driving the lock bolt extension, and the reset spring for the retraction function. Each component has a specific function and is positioned to optimize the overall compact arrangement.
Solution Approach 2:
The rotating shaft acts as an intermediary between the motor and the lock bolt. It transmits the rotational motion from the motor to the lock bolt, converting the rotational motion into the telescopic linear motion of the lock bolt through the drive spring mechanism.
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 built-in motor design reduces the lock body's volume, enabling convenient installation in various door bodies without external protrusions, enhancing versatility and aesthetic appeal by allowing flexible panel positioning.
Implementation Method 1
drive unit includes a motor (that is the built-in motor), the motor is mounted at a rear side of the lock bolt, an axial direction of the motor is in the same direction as a telescopic movement of the lock bolt, and the lock bolt realizes actions of extending and retracting the lock bolt hole based on a rotation of the motor
Implementation Method 2
a drive spring for driving and controlling a movement of the lock bolt
Implementation Method 3
a reset spring for elastic extension return after the lock bolt has retracted
Data Source
AI summary
A full-automatic single bolt lock body with a built-in motor is disclosed, including a lock case, a lock bolt, and a drive unit. An end of the lock case is provided with a lock bolt hole for extending and retracting the lock bolt, the drive unit is mounted in the lock case and is connected to the lock bolt. The drive unit includes the built-in motor, the built-in motor is mounted at a rear side of the lock bolt, an axial direction of the motor is in the same direction as a telescopic movement of the lock bolt, and the lock bolt realizes actions of extending and retracting the lock bolt hole based on a rotation of the motor. By such designs, the lock body of the present disclosure has high versatility.