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Troubleshooting Conductive Rubber Strips: Solutions for Zebra Connector Issues
2024-07-29
Does the connection between the conductive rubber strip and the circuit board require welding?
1) When connecting, a structural part is needed to fix the LCD with the conductive rubber strip and the PCB board. Conductive rubber strips, conductive strips, and conductive silicone strips are the common names for conductive silicone connectors. No welding is required, thereby eliminating damage to thermal devices.
2) Generally, there is a frame. The zebra strip is a connector that connects the PCB and the LCD screen. They are assembled together with an iron frame. The tools generally used are screwdrivers, pliers, etc. No equipment is required. They are assembled together with an iron frame.
The wave crystal display (LCD) and the PCB circuit board are connected through conductive, rubber zebra strips. The connection method is to clamp the conductive, rubber strips at the electrode position of the LCD and the PCB. Its compression ratio is generally less than 10%. The conductive principle of the conductive rubber strip is to conduct weak current through the sparse and dense arrangement of carbon black. Therefore, there is no distinction between positive and negative poles in the conductive rubber strip.
3) The performance of the conductive rubber strip is very stable and reliable. This material is mainly used in new technologies, such as computers, electronic watches, telephones, game consoles, and instruments, to connect the LCDs and circuit boards of these products to each other.
4) It uses a special connection method: if there is a contact problem between the "conductive rubber" and the "display screen", the display screen will show: missing strokes, etc.
Experienced: carefully reinstall and adjust the screws around the display screen to find the best "contact surface" (not the tighter the better)
5) Conductive glue (conductive glue) can be used to bond the wires on the circuit board instead of the soldering iron, which is generally available in |C packaging factories. Conductive glue can connect multiple conductive materials together to form an electrical path between the connected materials.
1. Conductive rubber strip/Zebra connector(conductive rubber strip display screen failure)/unstable conductivity
Problem description: The conductive rubber strip shows a decrease in conductivity during use, causing the electronic device to malfunction.
Solution:
Check the raw materials: confirm the quality of the conductive filler and substrate used to ensure that they meet the standards.
Control process parameters: optimize the formula and mixing process to ensure that the conductive filler is evenly distributed.
Test environment: avoid using conductive adhesive strips under extreme temperature or humidity to increase the stability of the use environment.
If there are missing strokes on the segment code LCD screen, you can press the frame or the lower cable. If it can be displayed normally, it means that there is no problem with the screen. If the screen is connected by a conductive adhesive strip, it is likely that the deformation of the circuit board and the aging of the conductive adhesive strip cause poor contact. The solution is to replace the new adhesive strip with better elasticity, or to reinforce the circuit board. How to reinforce it depends on the situation. For example, I use a small piece of foam to hold it up. The method is not only applicable to multimeters, but also to scales, thermometers, voltmeters, etc.
3. Insufficient bonding strength
Problem description: When the conductive adhesive strip is applied to the device, it affects the bonding effect, causing it to fall off or move.
Solution:
Surface treatment: Ensure that the bonding surface is clean, free of grease or dust, and surface pretreatment can be performed.
Choose the appropriate adhesive strength: Select the appropriate adhesive according to the application environment, increase the bonding area or use heating/pressurization methods to improve the bonding strength.
Improve the curing process: Adjust the curing time and temperature to improve the bonding performance of the adhesive strip.
4. Poor temperature resistance
Problem description: The conductive rubber strip ages or its performance degrades in a high temperature environment.
Solution:
Select high temperature resistant materials: Use high temperature resistant conductive rubber materials to ensure that its operating temperature range meets the application requirements.
Testing and certification: Conduct high temperature resistance tests to ensure that the rubber strip maintains stable performance in a high temperature environment.
Protection design: Design appropriate protection measures, such as using heat dissipation design to reduce the temperature of the conductive rubber strip.
5. Insufficient mechanical strength
Problem description: During use, the conductive rubber strip is prone to breakage or deformation.
Solution:
Select reinforcement materials: Use reinforcement fibers or other materials to improve mechanical strength.
Optimize formula: Adjust the formula of the conductive adhesive to increase toughness and tensile strength.
Check application process: Ensure that the installation process meets the requirements and reduce stress concentration.
6. Poor storage stability
Problem description: The conductive rubber strip deteriorates or its performance degrades during storage.
Solution:
Optimize packaging: Use moisture-proof, light-proof and anti-oxidation packaging materials to extend the storage life.
Control storage conditions: Ensure that the storage environment temperature and humidity are appropriate to avoid the impact of extreme environments on the rubber strip.
Regular inspection: Check the rubber strips in stock regularly and replace them in time if any problems are found.
For more information, please visit: Custom ODM custom conductive zebra connector Manufacturer, Supplier | CMAI (cmaisz.com)