New Energy Vehicle Low-Voltage Wire Harness Industny

Demand Analysis

Low-voltage wire harnesses feature numerous circuits and dense wiring layouts. Manual wiring and assembly easily result in misplugging, incorrect routing and damaged insulation. Conventional testing methods can hardly detect latent circuit faults. Isolated production processes cause difficulty in consistent quality control. These pain points struggle to meet strict automotive mass production standards and obstruct full-process traceability of assembly quality.

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New Energy Vehicle Low-Voltage Wire Harness Industny

Solution for Low‑voltage Wiring of New Energy Vehicles

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Core Customer Pain Points

Low‑voltage signal harnesses for intelligent NEVs confront four major challenges in fine‑wire process, signal transmission, working‑condition durability and flexible production, which bring hidden risks of signal anomaly and after‑service complaints.

Fine‑Wire Processing

Ultra‑fine copper wires such as 0.5mm² are prone to strand breakage during stripping; conventional crimping & tin soldering frequently produce cold solder joints and loose strands, which trigger unstable signal acquisition.

Signal & EMI Performance

Massive signal circuits are densely arranged inside vehicles; defective stripping or crimping may cause shielding damage and electromagnetic interference, resulting in signal distortion for sensors and communication modules.

Working Condition Durability

Under long‑term vehicle vibration and cyclic temperature change ranging from ‑40℃ to +105℃, harness connection points may suffer rising contact resistance and joint failure, threatening the reliability of BMS and body electronic functions.

Flexible‑Production Matching

Low‑voltage harness covers numerous wire specifications with frequent model changeover. Manual‑dependent scattered procedures lead to inconsistent product quality and difficulty adapting to multi‑variant & medium‑large‑batch automotive production.

Customized Landing Solution

Core Idea

Process Innovation

We deploy CNC electric wire‑stripping machine together with precision terminal crimping and low‑power ultrasonic welding technologies to replace manual stripping and traditional tin soldering & riveting. The solution achieves strand‑free stripping, low‑resistance and highly‑consistent fine‑wire connections, satisfying strict signal‑level automotive requirements.

Automation Integration

Multiple working procedures including wire cutting, precision stripping, crimping, multi‑wire merging welding and electrical testing are integrated into flexible automated production lines. Manual intervention is greatly reduced, improving production efficiency and harness consistency for 0.5mm² and other fine‑spec copper wires.

Digital Management & Control

Equipment data acquisition interconnects with MES system to realize full‑production traceability, real‑time quality monitoring and closed‑loop process optimization, complying with IATF 16949 automotive‑quality‑management standards.

Customized Adaptation

Provide exclusive combined process‑and‑equipment solutions for passenger & commercial vehicles, covering BMS sampling harness, body control harness, ADAS sensor harness and cockpit electronic harness scenarios.

Project Implementation Process

We provide one-stop full-cycle services covering demand communication, custom modeling, precision machining, reliability testing, prototype verification, trial & mass production delivery, as well as lifelong after-sales operation and maintenance for customized NEV harness automation equipment.

Demand Communication

In‑depth sorting of production pain points including harness volume, fine‑wire specifications (0.35‑2.5mm²), takt time and change‑over frequency, to confirm core customization requirements for low‑voltage signal harness.

Custom Scheme & Modeling

Build 3D digital models by process‑simulation platform and output dedicated automation solutions for NEV low‑voltage fine‑wire harness.

Precision Manufacturing & Machining

Independently produce core ultrasonic modules and key mechanical components; adopt standardized modular assembly to guarantee high machining precision for fine‑wire processing equipment.

Multi-Dimensional Reliability Testing

Carry out comprehensive performance tests covering stripping quality, welding pull‑off force, contact resistance and temperature‑vibration durability according to ISO9001 multi‑level inspection criteria.

Prototype Debugging & Verification

Repeatedly adjust stripping depth, crimping parameters and ultrasonic welding parameters by simulating customer on‑site working conditions, to complete overall equipment performance verification.

Small-Batch Trial Production

Support customers for sample trial processing of BMS and body low‑voltage harness, optimize process parameters and eliminate potential risks before mass‑volume production.

Mass Production & Delivery

Modular production supports graded lead‑time guarantee for fast delivery, backed by sufficient spare‑parts inventory.

Full-Lifecycle After-Sales O&M

7×24 remote diagnosis, on-site maintenance, and lifelong free optimization for fine-wire stripping and welding processes.

Results Display

Solution for Low-Voltage Wiring of New Energy Vehicles

The solution raises comprehensive processing efficiency of low‑voltage signal harness by over 45%; finished‑product yield stabilizes above 99.8%; rework rate caused by broken copper strands drops sharply, and production cost is reduced by 28%. Fully compliant with IATF16949 automotive‑grade standards, it realizes full‑process production‑data traceability and perfectly satisfies strict quality requirements of Tier‑1 harness suppliers for NEV low‑voltage harness represented by 0.5mm² copper wire.

Project Core Advantages

Relying on more than 20‑year technical accumulation in industrial ultrasonic and precision wire‑processing technology, Himinsen builds a digitized & intelligent integrated innovation platform. Our interdisciplinary R&D team covers acoustics, precision machinery, servo electronic control, vision inspection and industrial software, realizing independent control over core algorithms, hardware and complete sets of low‑voltage‑harness solutions.

R&D Structure

We operate an ultrasonic & fine‑wire‑processing R&D division and joint laboratory. Process‑simulation platform supports technical research and custom automation solutions for NEV low‑voltage fine‑strand harness.

Certifications & Patents

As a national high‑tech enterprise with ISO9001 certification and multiple independent patents. Our self‑developed fine‑wire processing equipment wins industry honors and achieves large‑scale global application.

Global Collaboration

We follow international automotive standards, introduce advanced fine‑wire‑processing technologies and jointly develop high‑precision NEV low‑voltage‑harness manufacturing equipment with leading industry partners.

Self-developed Core Parts

Independent in‑house development & manufacturing for ultrasonic generators, welding heads, high‑precision stripping modules and core mechanical parts, delivering top‑tier processing accuracy for customized NEV low‑voltage harness production lines.

Customer Testimonials

Mr Carter

Harness Engineering Director

“Himinsen’s fine‑wire processing equipment is stable and reliable. Matched with their automatic production line for low‑voltage harness, it effectively solves our persistent pain points of copper‑strand breakage during 0.5mm² wire stripping and unstable welding quality for multi‑strand signal harness. It realizes process integration and full‑data traceability, fully meets automotive‑grade mass‑production standards, and Himinsen is our trusted strategic partner.”

Mr Brooks

Manufacturing Technology Center Manager

“The combined solution from Himinsen is well‑matched to our multi‑specification, frequent‑change‑over production mode for NEV low‑voltage harness. Fast model switching and high‑degree‑of‑automation greatly lift our production capacity. Meanwhile its stripping accuracy and joint‑connection stability fully meet strict requirements of vehicle‑mounted signal harness, helping us realize dual targets of cost reduction and efficiency improvement.”

Mr Liam

Director of Charging Gun R&D

The one-stop wiring harness processing solution jointly provided by HIimisen and Haiseng effectively addresses the core pain points of liquid-cooled ultra-fast charging guns regarding high-current transmission, fatigue resistance and production efficiency. With stable and reliable equipment and a high certification pass rate, you have been a key partner supporting the mass production and launch of our liquid-cooled ultra-fast charging guns.

Mrs Chloe

New Energy Technology Director

Safety and long service life are core competitiveness of energy storage systems. The integrated solution from Himinsen and Haiseng effectively addresses the pain points of high-current transmission, stability and service life of our high-voltage wiring harnesses. Featuring high automation and full data traceability, it delivers robust safety assurance for our energy storage products.

Mr Elijah

Senior R&D Engineer

The aerospace industry sets extremely stringent requirements for product reliability. Himinsen's precision welding technology and Haiseng's precision crimping process fully align with our core demands. Its outstanding lightweight design and superior reliability have exceeded our expectations, delivering solid technical support for our aerospace-grade products.

Miss Evelyn

Quality Director, Medical Device Manufacturer

Safety is the top priority for medical device manufacturing. Himinsen's medical-grade ultrasonic welding equipment fully complies with medical cleanliness standards and precision welding specifications. It also ensures ultra-reliable wiring harness connections and has obtained relevant medical certifications, making us your preferred supplier for medical device harness processing.

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