Pump assembly and liquid dispensing device
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Solution Overview
Problem
Existing liquid dispensing devices have complex structures with multiple components, making assembly and maintenance time-consuming, and are prone to leakage and corrosion, which reduces their durability and reliability.
Innovation Solution
An integrated pump assembly with a flow path board, gas-liquid mixing pump, and main control board, where the flow path board comprises an upper and lower board with a pre-mixing and mixed region, and a foam booster made of plastic to reduce corrosion risks, eliminating the need for separate fixing means and silicone hoses, resulting in a simpler, more durable design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a complicated structure with many separate components (motor, gas-liquid transferring assembly, control board, sensor) is adopted, then the device can achieve liquid dispensing function, but the assembly and maintenance become complicated and time-consuming
Solution Approach 1:
The patent integrates the motor, gas-liquid transferring assembly, control board, and sensor into a single integrated pump assembly. The motor is directly mounted on the pump body, eliminating the need for separate fixing means. The control board is integrated with the pump assembly, and the sensor is built-in, creating a unified module that simplifies both assembly and maintenance operations.
2Reliability
If silicone hoses are used to transfer liquid and gas separately, then the gas-liquid transferring function is achieved, but accidental leakage may occur
Solution Approach 1:
The patent eliminates silicone hoses from the gas-liquid transferring system. Instead of using separate hoses for liquid and gas transfer, the invention integrates the transferring function directly into the pump assembly through built-in channels and passages, removing the leakage-prone hose connections entirely.
3Reliability
If stainless steel foam boosters are used, then the foaming function is achieved, but high risk of corrosion may result in product failure
Solution Approach 1:
The patent replaces traditional stainless steel foam boosters with a composite structure consisting of a plastic housing containing a foam generating element. This composite material approach provides superior corrosion resistance while maintaining the foaming function, as the plastic material is inherently resistant to chemical corrosion from dispensing liquids.
4Productivity
If the motor cannot be mounted quickly and firmly onto the gas-liquid transferring assembly, then the device can be assembled, but assembling and maintenance become quite complicated and time-consuming
Solution Approach 1:
The motor is integrated directly with the pump body in a unified structure that eliminates separate mounting steps. The motor housing and pump housing form a single assembly unit, allowing the entire motor-pump assembly to be installed as one component, thereby dramatically increasing assembly speed and ease of maintenance.
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 integrated design simplifies assembly and maintenance, reduces leakage risks, and enhances the device's durability and reliability by eliminating the need for complex hose connections and stainless steel components, leading to a more stable and efficient liquid dispensing process.
Implementation Method 1
a gas-liquid mixing pump connected with the flow path board to receive the liquid therefrom and return the gas-liquid mixture thereto
Implementation Method 2
an integrated pump assembly with a flow path board, gas-liquid mixing pump, and main control board, where the flow path board comprises an upper and lower board with a pre-mixing and mixed region, and a foam booster made of plastic
Data Source
Figure 1
Figure 2
Figure 3a
AI summary
Disclosed is an integrated pump assembly for a liquid dispensing device and a liquid dispensing device thereof. The pump assembly for the liquid dispensing device comprises a flow path board formed with a flow path therein to receive liquid from a liquid source and dispense a gas-liquid mixture, a gas-liquid mixing pump connected with the flow path board to receive the liquid therefrom and return the gas-liquid mixture thereto, and a main control board for controlling the operation of the gas-liquid mixing pump, wherein the flow path board comprises an upper board and a lower board fitted to each other with the flow path formed therebetween. The liquid dispensing device comprises a housing, said pump assembly configured to be accommodated in said housing and a power supply to supply power to said pump assembly.