Electrical Valve Control Device for Aerosol Spray
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Solution Overview
Problem
Conventional aerosol sprayers lack the ability to control the amount of spray dispensed and require complex mechanical parts to regulate dosage, making them costly and difficult to use.
Innovation Solution
An electrical valve control device with a cover member, base member, motor, axial gear, transmission gear with a spiral track, and a valve assembly that includes a nozzle, plug tube, channel, and a lever system to control the duration of aerosol release, allowing for adjustable spray quantity and direction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a valve is added to control the spray amount, then the spray quantity control is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The patent extracts the valve control function from a separate component and integrates it into the nozzle assembly itself. The valve is formed as an integral part of the nozzle, eliminating the need for a separate valve assembly and reducing overall device complexity while maintaining spray quantity control capability.
Solution Approach 2:
The valve and nozzle are merged into a single integrated component. The valve is formed as part of the nozzle structure, combining two functions (spray delivery and flow control) into one element, thereby reducing the number of parts and simplifying the overall device.
2Ease of operation
If a valve is added to control the spray amount, then the spray quantity control is improved, but the manufacturing cost increases
Solution Approach 1:
The valve and nozzle are merged into a single integrated component that can be manufactured as one piece using injection molding. This eliminates the need for separate valve manufacturing, assembly operations, and associated quality control, thereby reducing manufacturing cost despite adding control functionality.
Solution Approach 2:
The integrated nozzle-valve component serves multiple functions: it delivers the spray and controls the flow quantity. This multi-functionality reduces the total number of components that need to be manufactured and assembled, lowering overall manufacturing costs.
3Measurement precision
If complex mechanical parts are used to regulate dosage, then the spray control precision is improved, but the device complexity increases
Solution Approach 1:
The patent uses a dynamic mechanism where a movable element within the nozzle adjusts the opening size based on actuator position. This dynamic adjustment provides precise dosage control through a simple mechanical arrangement rather than complex multi-component mechanisms.
Solution Approach 2:
The patent introduces a simple intermediary element (a movable plug or valve member within the nozzle) that mediates between the actuator and the fluid flow. This intermediary provides precise control with minimal mechanical complexity by simply varying the opening area.
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
Enables precise control of aerosol release by varying the duration of channel opening and allows for adjustable spray direction, simplifying the mechanism and reducing manufacturing costs.
Implementation Method 1
an electric motor (11) joined to an outer surface of the cover member (12)
Implementation Method 2
a shaft (181) threading through a helical spring (182)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The electrical valve control device (1) contains a cover member (12) and a base member (21) joined together. A motor (11) is joined to the cover member's outer surface, and its axle configured with an axial gear (111) threads through the cover member. A transmission gear (15) having a track (16) engages the axial gear. A valve assembly (18) has a nozzle (186), a plug tube (185), and a channel (184) connected to the plug tube at one end. The other end of the channel is an open end and is in the same space as the nozzle. A cover piece (183) is positioned in front of the open end of the channel, and is joined to a first end of a shaft (181) threading through a helical spring (182). A second end of the shaft is connected to an end of a lever (19). A pin (192) is extended from the second end of the lever and is embedded in the transmission gear's track.