Electromagnetic Diaphragm Pump Coil Container for Leakage Prevention
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Solution Overview
Problem
Conventional electromagnetic vibrating diaphragm pumps face the risk of short circuits and explosions due to liquid or flammable gas penetration into the electromagnetic drive when the diaphragm is damaged, as these fluids can contact live parts of the electromagnet coils.
Innovation Solution
An airtight electromagnet coil container is integrated within the casing, with a passage for the oscillator's reciprocating motion, formed by a partition wall of magnetic permeability and non-magnetic material, preventing fluid penetration into the coil area and reducing the risk of electrical contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the diaphragm pump uses a simple casing structure without additional containment, then the device complexity is reduced and manufacturing is easier, but fluid can penetrate into the electromagnetic drive causing short circuits or explosions
Solution Approach 1:
The electromagnet coil container is nested inside the casing, creating a hierarchical containment structure. The container holds the electromagnet coils and is positioned within the larger casing that contains the diaphragm and pump chambers. This nested arrangement allows the fluid-containing pump chambers to be separated from the electromagnetic drive components through multiple containment layers, preventing fluid penetration while maintaining a compact integrated structure.
Solution Approach 2:
The pump is divided into distinct functional segments: the electromagnet coil container housing the electromagnetic drive components, and the pump chambers housing the fluid handling components with diaphragms. This segmentation separates the electromagnetic system from the fluid system, allowing independent protection strategies for each segment. The electromagnet coil container acts as a protective barrier that segments the overall structure to prevent fluid ingress into sensitive electrical components.
2Reliability
If the electromagnet coils are housed directly in the casing without a separate container, then the assembly process is simpler and fewer parts are required, but fluid penetration poses a risk to the electromagnetic components
Solution Approach 1:
The electromagnet coil container is nested inside the casing, creating a hierarchical containment structure. The container holds the electromagnet coils and is positioned within the larger casing that contains the diaphragm and pump chambers. This nested arrangement allows the fluid-containing pump chambers to be separated from the electromagnetic drive components through multiple containment layers, preventing fluid penetration while maintaining a compact integrated structure.
3Reliability
If the passage for oscillator movement is not sealed, then the oscillator can move freely, but fluid can penetrate through the passage into the electromagnet coil container
Solution Approach 1:
The partition wall of the electromagnet coil container features a localized passage that is specifically designed to allow oscillator movement while maintaining fluid isolation. The passage has precise dimensions and positioning that permit the oscillator to pass through and move during operation, while the surrounding sealed structure of the partition wall prevents fluid penetration. This local quality approach allows the wall to have different properties in different locations: sealed in most areas for protection, and open in the passage area for mechanical function.
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 ensures the electromagnet coils remain protected from liquids and flammable gases, minimizing the risk of short circuits and explosions, enabling safe operation of the pump even with a damaged diaphragm, and simplifies the assembly process by integrating the electromagnet coil container with the casing.
Implementation Method 1
an electromagnetic vibrating diaphragm pump disclosed in Patent Document 1 comprises a drive 14 adapted to drive diaphragms 13 by the vibration of an oscillator 12 provided with permanent magnets 11 caused by magnetic interactions between a pair of magnet coils 10 and the permanent magnets 11
Implementation Method 2
the electromagnet coil container has a passage formed for the oscillator to move in reciprocation and the passage is formed of an outer surface of a partition wall of the electromagnet coil container
Data Source
AI summary
An electromagnetic vibrating diaphragm pump is provided which is safe even when a diaphragm of a diaphragm pump is damaged and liquid or flammable gas penetrates an electromagnetic drive. An electromagnet coil container containing electromagnet coils in an airtight manner is further provided inside a casing, preventing fluid which has penetrated into the space outside the electromagnet coil container from penetrating into the space inside the electromagnet coil container. The electromagnet coil container has a passage formed for an oscillator to move in reciprocation and the passage is formed of a partition wall outside the container. The electromagnetic coil container is configured to prevent fluid which has penetrated into the space inside the passage from penetrating into the space inside the electromagnet coil container.