CN-224232973-U - Test pencil suitable for chemical composition

Abstract

The utility model discloses a test wire harness suitable for chemical components, which relates to the technical field of test wire harnesses, and comprises an aviation head, wherein the aviation head is connected with a plurality of wire harnesses, the tail end of each wire harness is connected with a joint, the joint is provided with the sheath with pencil junction, and the pencil is inside to be provided with the copper core wire, and the copper core wire outside is provided with a plurality of optic fibre, and optic fibre is responsible for transmitting high frequency signal, and the pencil is inside to be provided with many signal lines. The utility model adopts high-quality materials, silver-plated copper core wires, glass fiber optical fibers and high-purity copper signal wires, ensures stable signal transmission, and a multi-layer protection structure comprises a shielding inner layer, a shielding outer layer, a mechanical reinforcement layer and the like, effectively isolates interference, enhances stretching resistance and fatigue resistance, is suitable for complex environments, ensures high efficiency and reliability of electric connection by adopting a double-contact gold-plated layer on an aviation head and a joint part, prevents signal distortion, and ensures stable signal transmission and durability for a long time by adopting the whole design.

Inventors

• WEI XIAOHUI

Assignees

• 上海银晓科技有限公司

Dates

Publication Date

20260512

Application Date

20250520

Claims (6)

1. 1. The utility model provides a test pencil suitable for chemical composition, includes aircraft nose (1), its characterized in that, aircraft nose (1) is connected with a plurality of pencil (2), pencil (2) end-to-end connection has joint (3), joint (3) are provided with sheath (4) with pencil (2), pencil (2) inside is provided with copper core wire (5), copper core wire (5) outside is provided with a plurality of optic fibre (201), optic fibre (201) are responsible for transmitting high frequency signal, pencil (2) inside is provided with many signal lines (7), signal line (7) are responsible for the transmission of low frequency signal, copper core wire (5) outside cladding has conductor cladding (204), and conductor cladding (204) are used for reinforcing corrosion resistance and oxidation resistance of copper core wire (5), a plurality of signal line (7) outside cladding has shielding inlayer (202), shielding inlayer (202) are used for keeping apart inside and outside signal interference, shielding inlayer (202) skin is provided with mechanical strengthening layer (205), mechanical layer (205) skin is provided with shielding skin (203), and shielding skin (203) are used for outside electromagnetic interference.
2. 2. The test harness for chemical components according to claim 1, characterized in that the mechanical reinforcement layer (205) is used for enhancing the tensile strength and fatigue resistance of the harness (2), the mechanical reinforcement layer (205) is formed by cross-braiding high-strength fibers and wires, and fillers are arranged between the mechanical reinforcement layer (205) and the shielding outer layer (203) and between the mechanical reinforcement layer and the shielding inner layer (202).
3. 3. The test harness for chemical components according to claim 1, characterized in that the optical fiber (201) is made of glass fiber and the signal line (7) is made of high purity copper.
4. 4. The test harness for chemical components according to claim 1, characterized in that the inner shielding layer (202) is formed by an aluminum foil and metal fiber cross-braiding, and the outer shielding layer (203) is formed by a tinned copper wire braiding.
5. 5. The test harness for chemical components according to claim 1, characterized in that the conductor plating (204) is a silver plating.
6. 6. The test harness for chemical components according to claim 1, wherein the aviation head (1) and the connector (3) are both provided with a double-contact gold-plating layer (6), the double-contact gold-plating layer (6) covers the connector (3) and the metal contact part of the aviation head (1), and a high-quality gold material is adopted to plate the electric shock part.

Description

Test pencil suitable for chemical composition Technical Field The utility model relates to the technical field of test wire harnesses, in particular to a test wire harness suitable for chemical components. Background The test harness is a key component for transmitting electric signals between test equipment and a tested product, and is generally composed of a plurality of wires, plugs, connectors and other related components, and is used for simulating an actual working state or verifying whether the connection of a circuit is correct when the test harness is used for testing the electric equipment. The test harness also comprises a test of chemical fiber type and density type signals, the chemical fiber type test needs to collect signals such as tension, tensile strength and the like under high-frequency chemical corrosion environments (such as acid-base solution and high-temperature treatment), and the density type test is often accompanied with the real-time transmission requirement of ultrasonic wave or high-frequency electromagnetic wave signals. However, conventional sheath materials (such as PVC) of the conventional test harness are easily corroded by organic solvents in chemical fiber production, so that insulation failure is caused, high-frequency density detection signals are easily interfered by harness capacitance effects, common mode noise is difficult to inhibit by conventional shielding design, and wire core breakage or poor contact is easily caused by mechanical vibration and frequent plugging of the chemical fiber production line. Therefore, the present invention provides a test harness suitable for chemical components to solve the above-mentioned problems in the prior art. Disclosure of utility model The utility model aims to solve the problems of signal distortion, corrosion failure and mechanical durability pain points in chemical fiber and density testing scenes in the prior art, and provides a testing harness applicable to chemical components. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The utility model provides a test pencil suitable for chemical composition, includes the aircraft nose, the aircraft nose is connected with a plurality of pencil, pencil end-to-end connection has the joint, joint and pencil junction are provided with the sheath, the inside copper core wire that is provided with of pencil, the copper core wire outside is provided with a plurality of optic fibre, and optic fibre is responsible for transmitting high frequency signal, the inside many signal lines that are provided with of pencil, the transmission that the signal line is responsible for low frequency signal, the outside cladding of copper core wire has the conductor cladding, and the conductor cladding is used for reinforcing the corrosion resistance and the oxidation resistance of copper core wire, a plurality of the outside cladding of signal line has the shielding inlayer, and the shielding inlayer is used for keeping apart inside and outside signal interference, the shielding inlayer skin is provided with mechanical strengthening layer, mechanical strengthening layer skin is provided with the shielding skin, and the shielding skin is used for keeping apart outside electromagnetic interference. Preferably, the mechanical strengthening layer is used for enhancing the tensile strength and fatigue resistance of the wire harness, and is formed by interweaving high-strength fibers and metal wires, and fillers are arranged between the mechanical strengthening layer and the shielding outer layer and between the mechanical strengthening layer and the shielding inner layer. Preferably, the optical fiber is made of glass fiber, and the signal wire is made of high-purity copper. Preferably, the shielding inner layer is formed by interweaving aluminum foil and metal fibers, and the shielding outer layer is formed by interweaving tinned copper wires. Preferably, the conductor plating is a silver plating. Preferably, the aviation head and the connector are both provided with a double-contact gold-plating layer, the double-contact gold-plating layer covers the metal contact parts of the connector and the aviation head, and a high-quality gold material is adopted for plating the electric shock part. Compared with the prior art, the utility model has the beneficial effects that: 1. The wire harness adopts a structure of combining a copper core wire, an optical fiber and a high-purity copper signal wire, and the surface of the copper core wire is coated with a silver coating so as to enhance corrosion resistance and conductivity, ensure stable transmission of low-frequency signals, and the optical fiber adopts glass fiber and is specially used for high-frequency signal transmission, so that signal loss is reduced and signal transmission quality is improved; 2. The inside and the outside of the wire harness are provided with the multilayer protection structure, an