Integrated Analyte Transmitter Sealing for Waterproof PCB Assembly
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Solution Overview
Problem
Existing analyte detection devices have complex production processes and high costs due to integral packaging of the transmitter shell around the circuit and metal contacts, making it difficult to achieve a reliable electrical connection and waterproof insulation.
Innovation Solution
A highly integrated analyte detection device with a transmitter structure that allows separate processing of the shell and circuit module, using a through-hole for the electrical connection module, sealed with sealing material to ensure waterproofing and insulation, and a connector for simultaneous conduction and insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If integral packaging process is used to mold transmitter shell around circuit and metal contacts, then waterproof and insulation protection is achieved, but production and processing complexity increases and cost rises
Solution Approach 1:
The transmitter shell is divided into two separate parts: a base shell and a separate circuit board assembly. The circuit board with metal contacts is manufactured independently and then mounted onto the base shell, eliminating the need for complex integral packaging. This segmentation allows each component to be produced using standard, cost-effective processes while maintaining reliable electrical connections and waterproof insulation through separate sealing mechanisms.
2Reliability
If integral packaging process is used to mold transmitter shell around circuit and metal contacts, then waterproof and insulation protection is achieved, but manufacturing cost increases
Solution Approach 1:
By segmenting the transmitter into a base shell and a separately manufactured circuit board assembly, the invention enables each component to be produced using conventional, cost-effective manufacturing processes. The circuit board can be manufactured using standard PCB techniques, and the shell can be molded separately, avoiding the high costs associated with complex integral packaging processes while maintaining reliable waterproof and insulation protection through separate sealing mechanisms.
3Ease of manufacture
If separate processing of shell and circuit module is used, then production process is simplified and cost is reduced, but electrical connection reliability may be compromised
Solution Approach 1:
The circuit board is pre-assembled with metal contacts and tested for electrical continuity before being mounted onto the transmitter shell. This preliminary preparation ensures that electrical connections are established under controlled conditions, and any connection issues are detected and corrected before final assembly. The pre-assembled circuit board is then securely fixed to the shell with precise alignment, ensuring reliable electrical connections while maintaining the benefits of separate processing.
4Ease of manufacture
If separate processing of shell and circuit module is used, then production process is simplified and cost is reduced, but waterproofing may be compromised
Solution Approach 1:
A sealing ring or gasket is introduced as an intermediary element between the base shell and the circuit board assembly. This sealing component fills the gap between the two separately processed parts, creating a waterproof barrier that prevents moisture ingress. The sealing ring is easily installed during final assembly and maintains waterproof integrity without requiring complex integral packaging, thus preserving the advantages of separate processing while ensuring reliable waterproofing.
Data Source
Figure 1~2
Figure 3~4a
Figure 4b~4c
AI summary
A highly integrated analyte detection device (10). The transmitter (103) is composed of a shell (1031), a cover body (1035), a circuit module (1033) and an electrical connection module (1034). The circuit module (1033) is fixedly connected with the shell (1031), one end of the electric connection module (1034) is fixedly connected with the circuit module (1033), the other end extends to the outside through the through hole (10311) on the shell (1031), and is electrically connected with other structural parts. The sealing material is filled between the electric connection module (1034) and the through hole (10311), and the cover body (1035) and the shell (1031) are clamped together to form a seal for the circuit module (1033), which makes the transmitter (103) structure simpler. The shell (1031) and the circuit module (1033) can be processed separately and then assembled. The production process is less difficult and the production cost is reduced at the same time.