Pump Unit Battery Holder for Power Interruption
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Solution Overview
Problem
Existing pump units, such as heating circulating pumps, face challenges in maintaining partial functionality of control electronics when the supply voltage is switched off for extended periods, as components like real-time clocks and temperature detectors require continuous power.
Innovation Solution
Incorporating a battery holder in the electronics housing to securely store a button cell battery, which is form-fittingly secured to prevent it from falling out, allowing for a compact and efficient power buffer for the control electronics, ensuring continued functionality during power interruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a battery is integrated into the electronics housing to maintain control electronics functionality during power interruptions, then the reliability of critical components is improved, but the device complexity increases due to additional power supply components and integration requirements
Solution Approach 1:
The battery holder is integrated directly into the printed circuit board, combining the power storage function with the existing electronics structure. This merging approach allows the battery to be securely mounted while maintaining a compact design and avoiding separate mounting structures that would increase complexity.
Solution Approach 2:
The battery holder serves multiple functions: it mechanically secures the battery in place, provides electrical connection through soldering lugs, and integrates with the printed circuit board structure. This multi-functionality reduces the need for additional components and simplifies the overall design.
2Reliability
If the battery is form-fittingly secured in the battery holder to prevent falling out, then the reliability of battery retention is improved, but the ease of manufacture decreases due to precise dimensional requirements
Solution Approach 1:
The battery holder is designed as a separate component that is subsequently mounted onto the printed circuit board. This segmentation allows the battery holder to be manufactured with precise form-fitting dimensions independently, while the printed circuit board can be produced using standard manufacturing processes. The assembly of these separate parts achieves reliable battery retention without requiring the entire structure to meet high precision requirements.
3Ease of operation
If the battery holder is open on at least one side to allow battery insertion, then the ease of operation is improved for battery replacement, but the reliability of battery retention is worsened due to potential falling out
Solution Approach 1:
The battery holder is designed with an open side that allows the battery to be inserted in a predetermined orientation before final assembly. The form-fitting structure is pre-configured to guide the battery into the correct position, ensuring that when the holder is closed or sealed, the battery is already properly oriented and securely retained. This preliminary action during assembly simplifies operation while maintaining reliability.
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 battery holder ensures that critical components like the real-time clock continue to function even when the power supply is off, enabling time interval detection outside operating times, while maintaining a compact and thermally stable structure within the pump unit.
Implementation Method 1
a battery is arranged in the electronics housing, which is arranged in a battery holder
Data Source
Figure 1
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Figure 3
AI summary
The pump unit comprises a centrifugal pump driven by an electric motor and an electronics housing (11) containing control electronics with a frequency converter. Printed circuit boards (16) equipped with electronic components (20) are arranged within the electronics housing (11). One of these boards has a battery holder (21) open on one side, designed to accommodate a battery. The battery holder (21) is open on one side to allow insertion of the battery and is closed by a positive locking element (29), which, when installed, secures the battery against falling out of the holder (21). (Fig. 3)