Refrigerator Dispenser Linkage for Space-Saving Switch Actuation
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Solution Overview
Problem
Conventional refrigerator dispensers require additional space for the transfer mechanism, which increases the installation space and reduces storage capacity.
Innovation Solution
A dispenser design featuring a planar pushing member, a switch operated by a parallel force, and a motion conversion unit with an oblique member and transfer member, allowing for parallel rotation and reducing the need for additional space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a transfer mechanism is rotated with respect to the rear surface of the dispenser housing, then the switch can be operated, but a spare space for rotation is required which enlarges the installation space and decreases storage space
Solution Approach 1:
The transfer member changes the motion dimension from rotational (requiring radial space) to linear parallel motion (requiring minimal space). The pushing member moves back and forth in a linear direction parallel to the rear surface, and the transfer member converts this linear motion to activate the switch, eliminating the need for rotational spare space.
Solution Approach 2:
The invention extracts the rotational motion requirement from the system by using a linear pushing motion that parallels the rear surface. The transfer member isolates the switch activation function from the rotational transfer mechanism, allowing the pushing member to move in a space-efficient linear path while still achieving switch operation.
2Reliability
If a rotational transfer mechanism is used, then the switch can be activated, but the complexity of the mechanism increases
Solution Approach 1:
The invention replaces the complex rotational mechanical transfer mechanism with a simpler linear pushing system. The transfer member acts as a motion converter that transforms linear back-and-forth motion into switch activation without requiring complex rotational joints, bearings, or spatial arrangements, thereby reducing mechanical complexity.
Solution Approach 2:
Instead of rotating the transfer mechanism to activate the switch, the invention inverts the approach by moving the pushing member in a linear fashion parallel to the rear surface and using the transfer member to convert this motion. This inversion simplifies the mechanism by eliminating rotational components.
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
This design minimizes installation space requirements and enhances operational reliability by converting force direction through simple configurations, reducing the likelihood of undesired operations.
Implementation Method 1
a motion conversion unit cooperating with the motion of the pushing member so as for the switch to be pushed. Here, the motion conversion unit comprises an oblique member configured to be protruded with being oblique from one side of a rear surface of the pushing member; and a transfer member coming in contact with the oblique member and the switch and having one side fixed to be rotatable in parallel with the pushing member
Data Source
AI summary
A dispenser for a refrigerator including a pushing member formed in a planar shape and configured to be movable in a back and forth direction, a switch configured to be operated by a pushing force applied to be parallel with the pushing member, and a motion conversion unit cooperating with the motion of the pushing member to enable the switch to be pushed, wherein the motion conversion unit includes an oblique member configured to be protruded obliquely from one side of a rear surface of the pushing member, and a transfer member coming in contact with the oblique member and the switch and having one side fixed to be rotatable in parallel with the pushing member.