INDUSTRY COMPONENT

Backplate / Frame

Backplate/Frame is a structural component in keypad assemblies providing mechanical support, alignment, and mounting for keys and electronics.

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Component Specifications

Definition
The Backplate/Frame is a rigid structural element within keypad assemblies that serves as the foundational chassis. It provides dimensional stability, precise alignment for key switches and contact mechanisms, mounting points for electronic components (PCBs, connectors), and interfaces with the host device enclosure. This component ensures consistent key actuation, protects internal electronics from mechanical stress, and maintains the overall integrity of the keypad assembly during operation and environmental exposure.
Working Principle
The Backplate/Frame operates on mechanical support principles, distributing operational forces (keypress impacts, assembly stresses) across its structure to prevent deformation. It maintains precise geometric relationships between components through designed tolerances and mounting features, ensuring reliable electrical contact and mechanical function. Its rigidity prevents flexing that could cause misalignment or inconsistent key response.
Materials
Typically made from engineering plastics (ABS, PC, PC/ABS blends) for lightweight applications or metals (aluminum alloys, stainless steel) for high-durability requirements. Materials are selected based on strength, dimensional stability, weight, cost, and compatibility with manufacturing processes like injection molding or stamping.
Technical Parameters
  • thickness 1.5-3.0 mm
  • material_hardness 80-95 Shore D (plastics) or 70-90 HRB (metals)
  • flatness_tolerance ±0.1 mm
  • operating_temperature -20°C to +70°C
  • mounting_hole_diameter 2.0-3.5 mm
Standards
ISO 9001, ISO 13485, IEC 61000, DIN 41612

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Backplate / Frame.

keypad backplate frame component structural support mechanical alignment mounting chassis keypad assembly industrial keypad electronic enclosure Backplate / Frame Backplate / Frame in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Keypad Assembly

A tactile interface component for an Enterprise-Grade VoIP Desk Phone that enables user input of numbers, letters, and commands.

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Engineering Analysis

Risks & Mitigation
  • Dimensional deformation under load
  • Material fatigue over cycles
  • Corrosion in harsh environments
  • Incompatibility with mating components
FMEA Triads
Trigger: Insufficient material strength or thickness
Failure: Permanent deformation under repeated keypress forces
Mitigation: Conduct structural FEA analysis and specify materials with adequate yield strength and fatigue resistance
Trigger: Poor dimensional control during manufacturing
Failure: Misalignment of key switches causing inconsistent actuation
Mitigation: Implement statistical process control and regular dimensional verification using CMM

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric dimensioning and tolerancing per ASME Y14.5, with flatness within 0.1mm and positional tolerances within 0.05mm
Test Method
Dimensional verification via coordinate measuring machine (CMM), mechanical load testing per ISO 12100, environmental testing per IEC 60068

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the critical tolerances for Backplate/Frame manufacturing?

Critical tolerances include flatness (±0.1 mm), hole positioning (±0.05 mm), and thickness consistency (±0.05 mm) to ensure proper key alignment and mounting.

How does material selection affect Backplate/Frame performance?

Material choice impacts durability, weight, cost, and environmental resistance. Plastics offer cost-effectiveness and design flexibility, while metals provide superior strength and EMI shielding.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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