Handheld Spray Device with External Atomization Zone
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Solution Overview
Problem
Existing hand-held dispensing devices for sprayable fluids, such as make-up, quickly become non-functional due to fluid drying out and often apply the medium unevenly, making them unsuitable for portable use or quick touch-ups.
Innovation Solution
A hand-held dispensing device with a spray head featuring two nozzles, one for air and one for fluid, positioned at an angle to form an atomization zone outside the head, preventing nozzle drying and enabling even fluid application. The device includes a releasable spray head and storage container design for easy exchange and to prevent mixing of substances, with an air flow system that controls fluid dispensing and atomization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the spray head and storage container are designed as a single integrated unit, then device complexity is reduced, but adaptability for different fluids and cleaning requirements deteriorates
Solution Approach 1:
The spray head is designed as a separable component that can be detached from the storage container. This segmentation allows the spray head to be removed for cleaning or replacement while keeping the storage container, enabling adaptation to different fluids without redesigning the entire device.
Solution Approach 2:
The spray head is designed with universal cleaning capabilities and can be used with different types of fluids by simply replacing or cleaning the spray head component, making the system adaptable to multiple applications while maintaining a relatively simple overall structure.
2Device complexity
If the nozzle remains in contact with the fluid line during storage, then the device structure is simplified, but the nozzle dries out and becomes non-functional
Solution Approach 1:
The spray head containing the nozzle is extracted as a separable component from the fluid line connection. During storage, the spray head can be detached and stored separately, preventing the nozzle from drying out while maintaining a simple nozzle configuration when in use.
Solution Approach 2:
The spray head can be pre-filled with fluid or kept moist during storage by maintaining separation from the fluid line, ensuring the nozzle remains functional without requiring complex retention mechanisms.
3Device complexity
If the spray head is fixed in position, then device complexity is reduced, but the ability to exchange spray heads for different fluids is lost
Solution Approach 1:
The connection between the spray head and storage container is designed as a separable interface rather than a permanent fixed connection. This segmentation enables easy exchange of spray heads for different fluids while keeping the connection system simple and intuitive.
Solution Approach 2:
The connection system transitions from a static fixed state to a dynamic separable state, allowing the spray head to be easily attached or detached based on fluid requirements, thereby achieving adaptability without significant complexity increase.
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 device remains functional for an extended period, allows for precise and even fluid application, and enables selective targeted application, even at a distance, while preventing fluid drying in the nozzle and ensuring complete use of the storage container contents.
Implementation Method 1
a spray head (14) having a first nozzle (38) which is in communication with a fluid line (44), and, separately, a second nozzle (46) in the spray head (14), wherein the first nozzle (38) is supplied with the air flow from a hose line (36) which is in communication with the first nozzle (38), and an atomisation zone (49) is formed outside the spray head (14)
Implementation Method 2
the fluid is conveyed out of the second nozzle according to the Venturi Principle
Data Source
AI summary
The invention relates to a dispensing device which is intended for spraying a sprayable fluid and is designed in the form of a hand-held unit, having a housing (12), in which are provided an air pump (22) and an electric drive motor (18), which drives the air pump (22), having a spray head (14), which is connected to the housing (12) and is intended for dispensing the fluid, having an accommodating chamber (29), which is arranged in the housing (12) and is intended for a storage container (41), in which the fluid which is to be dispensed is stored, having a fluid line (44), which leads from the storage container (41) to the spray head (14), and having a hose line (36), which leads from the air pump (22) to the spray head (14), wherein the spray head (14) has a first nozzle (46), which is connected to the fluid line (44), and, separately from said first nozzle, a second nozzle (38), which is supplied with the air flow from the hose line (36), and an atomizing zone (49) is formed outside the spray head (14).