Spray Button Rotational Chamber Design for Wide-Angle Atomization
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Solution Overview
Problem
Conventional mechanical breakup spray buttons are limited to spraying angles of 80° or less, failing to achieve the required wide-angle and fine particle distribution for applications like hair cosmetic products and garden insecticides when using compressed or liquefied gases.
Innovation Solution
The spray button design is optimized by adjusting the ratios of the rotation chamber diameter to the spray orifice diameter, rotation chamber width to spray groove width, and rotation chamber length to spray orifice length, ensuring D/Da > 1, D/Dd ≥ 5, and D/L ≥ 3, with additional desirable dimensions for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional mechanical breakup spray buttons are used, then spraying function is provided, but spraying angle is limited to 80° or less
Solution Approach 1:
The patent applies parameter changes by optimizing the dimensional ratios of the rotation chamber relative to the spray orifice and spray groove. Specifically, it sets the rotation chamber diameter to spray orifice diameter ratio (D/Da) greater than 1, the rotation chamber diameter to spray groove width ratio (D/Dd) of 5 or more, and the rotation chamber diameter to distance from stem-side sidewall to spray orifice tip ratio (D/L) of 3 or more. These parameter optimizations enable the spray button to achieve a spraying angle of 90° or more while maintaining a simple mechanical breakup structure without requiring complex additional components.
2Manufacturing precision
If conventional spray button dimensions are used, then structure is simple, but particle diameter is not sufficiently reduced
Solution Approach 1:
The patent achieves finer particle diameter through parameter changes in the rotation chamber dimensions. By setting the rotation chamber diameter to spray orifice diameter ratio (D/Da) greater than 1, the patent ensures sufficient rotation space for effective mechanical breakup of the sprayed liquid, resulting in finer particles. The optimized parameters enable particle diameter reduction without complicating the overall device structure, as the solution lies in precise dimensional ratios rather than additional complex mechanisms.
3Shape
If rotation chamber diameter is increased, then spraying angle increases, but device size increases
Solution Approach 1:
The patent resolves the contradiction between spraying angle and device size through optimized parameter relationships. By establishing that the rotation chamber diameter to spray groove width ratio (D/Dd) should be 5 or more and the rotation chamber diameter to distance ratio (D/L) should be 3 or more, the patent achieves efficient utilization of the rotation chamber volume. These parameter optimizations enable the system to achieve a spraying angle of 90° or more while keeping the overall device size compact, as the precise dimensional ratios maximize the functional efficiency of each component.
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 configuration allows for spraying angles of 90° or greater and reduces particle diameter, achieving a wider spray range and improved coating effects compared to conventional systems.
Implementation Method 1
a rotational force is imparted to the content in the vicinity of a spray orifice and the content is sprayed from the spray orifice, thereby spraying fine and uniform particles
Implementation Method 2
mechanical breakup button is known as a mechanism in which a rotational force is imparted to the content in the vicinity of a spray orifice
Data Source
Figure 1~2
Figure 3(a)~4
Figure 5~6
AI summary
A spray button which is capable of spraying a content widely and decreasing the diameter of a sprayed particle. In the spray button comprising a spray button body and a nozzle body and having a rotation chamber, a spray orifice, and a plurality of spray grooves, assuming a diameter of the rotation chamber to be (D), a diameter of the spray orifice to be (Da), a width of a connection portion with the spray grooves and the rotation chamber to be (Dd), and a length from a stem-side sidewall of the nozzle body to a tip of the spray orifice to be (L), the relationships of D/Da > 1, D/Dd ≥ 5, D/L ≥ 3 are satisfied.