Peristaltic Pump U-Shaped Transmission Layout for Compact E-Cigarettes

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Solution Overview

Problem

Existing peristaltic pumps in e-cigarettes have a large volume due to the arrangement of gear sets in a deceleration box, leading to increased product size, manufacturing costs, and inconvenience in use and carrying.

Innovation Solution

A peristaltic pump design with a carrier, drive assembly, transmission assembly, and peristaltic assembly arranged in a U-shape, utilizing two accommodating spaces to integrate and compactly arrange transmission shafts and gears, reducing the need for a conventional deceleration outer box.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a conventional deceleration box with multiple gear sets is used, then the deceleration function is achieved, but the volume of the decelerator and final product increases

Engineering Contradiction:
Improvedeceleration functionVSAvoidvolume of decelerator
Core Design Contradiction:
PowerVSVolume of stationary object

Solution Approach 1:

The patent combines multiple gear sets (first, second, and third gear sets) into a single integrated deceleration box structure, where gears from different stages are arranged within the same housing space. This merging approach eliminates the need for separate deceleration boxes for each gear stage, thereby achieving the required deceleration function while reducing the overall volume of the decelerator.

Inventive Principle:
Principle #5Merging (Combining)

2Power

If the volume of the decelerator is increased to accommodate multiple gear sets, then the deceleration function is maintained, but the volume of the final product increases

Engineering Contradiction:
Improvedeceleration functionVSAvoidvolume of final product
Core Design Contradiction:
PowerVSVolume of stationary object

Solution Approach 1:

The patent integrates multiple gear sets into a single deceleration box, which is then installed within the pump head assembly. This merging strategy allows the decelerator to occupy space within the existing pump head volume rather than adding external volume, thereby maintaining the deceleration function while avoiding an increase in the final product volume.

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If an external motor outer cover is used to house the motor and deceleration apparatus, then the components are protected, but the overall product volume increases

Engineering Contradiction:
Improvecomponent protectionVSAvoidoverall product volume
Core Design Contradiction:
ReliabilityVSVolume of stationary object

Solution Approach 1:

The patent combines the motor and deceleration apparatus into a single integrated assembly where the motor is directly coupled to the deceleration box. This merged configuration allows both components to share the same space within the pump head, eliminating the need for a separate external motor outer cover and thereby reducing the overall product volume while maintaining component protection.

Inventive Principle:
Principle #5Merging (Combining)

4Power

If multiple gear sets are arranged in separate deceleration boxes, then each gear set functions independently, but the device complexity increases

Engineering Contradiction:
Improvegear set functionVSAvoidstructure complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The patent merges multiple gear sets into a single deceleration box with a unified structure. The first, second, and third gear sets are arranged within the same housing, sharing common mounting features and support structures. This integration reduces the number of separate components and assembly steps, thereby decreasing device complexity while maintaining the independent functionality of each gear set.

Inventive Principle:
Principle #5Merging (Combining)

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 compact design reduces the overall volume of the e-cigarette, making it more convenient for carrying and use while maintaining efficient operation.

Implementation Method 1

the hose 240 is squeezed by rotation of the pump head 230, to add or clear e-liquid

Methodology Applied
Scientific EffectPeristalsis: Peristalsis

Data Source

PatentEP4123173B1Electronic cigarette and peristaltic pump thereof
Publication Date: 2026.04.15 SHENZHEN SMOORE TECH LTD
  • EP4123173B1 patent drawingFigure 1
  • EP4123173B1 patent drawingFigure 2
  • EP4123173B1 patent drawingFigure 3

AI summary

The present invention discloses an electronic cigarette and a peristaltic pump thereof, the peristaltic pump including a carrier, a drive assembly, a transmission assembly, and a peristaltic assembly. The drive assembly is arranged on the carrier, the peristaltic assembly and the drive assembly are arranged side by side on the same side of the carrier, a first accommodating space is provided between the drive assembly and the carrier, a second accommodating space is provided between the peristaltic assembly and the carrier, the transmission assembly is respectively disposed in the first accommodating space and the second accommodating space, and the drive assembly is connected to the peristaltic assembly through the transmission assembly. The transmission assembly is respectively in the first accommodating space and the second accommodating space, to further connect the drive assembly to the peristaltic assembly. The transmission assembly, the drive assembly, and the peristaltic assembly are all arranged on the carrier, and are entirely in a shape of "U". Therefore, not only the first accommodating space and the second accommodating space are appropriately utilized, but also a conventional deceleration outer box is reduced. In addition, the arrangement of the transmission assembly is more compact, an effect of volume reduction is achieved, and the volume of a final product is also reduced, which is convenient for carrying and use.