Test wire harness suitable for chemical components

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, the aviation head is connected with a plurality of wire harnesses, the tail ends of the wire harnesses are connected with joints, the joints of the joints and the wire harnesses are provided with sheaths, copper core wires are arranged in the wire harnesses, and a plurality of optical fibers are arranged outside the copper core wires. The optical fiber is responsible for transmitting high-frequency signals, and a plurality of signal lines are arranged in the wire harness. The high-quality material, the silver-plated copper core wire, the glass fiber optical fiber and the high-purity copper signal wire are adopted, stable signal transmission and a multi-layer protection structure are ensured, the multi-layer protection structure comprises a shielding inner layer, a shielding outer layer, a mechanical strengthening layer and the like, interference is effectively isolated, stretching resistance and fatigue resistance are enhanced, and the optical cable is suitable for complex environments and has good application prospects. And the aviation head and the joint part adopt double-contact gold-plated layers, so that high efficiency and reliability of electrical connection are ensured, signal distortion is prevented, and long-term stable signal transmission and durability are ensured through the overall design.

Description

Technical Field

[0001] This utility model relates to the field of test harness technology, and in particular to a test harness suitable for chemical composition. Background Technology

[0002] Test harnesses are key components used for electrical signal transmission between test equipment and the product under test. A harness typically consists of multiple wires, plugs, connectors, and other related components. During electrical equipment testing, they are used to simulate actual operating conditions or verify the correctness of circuit connections. Test harnesses also include those for testing synthetic fiber and density-based signals. Synthetic fiber testing requires acquiring signals such as tension and tensile strength under high-frequency chemical corrosion environments (e.g., acid and alkali solutions, high-temperature treatment), while density-based testing often involves real-time transmission of ultrasonic or high-frequency electromagnetic wave signals.

[0003] However, conventional sheath materials for traditional test harnesses (such as PVC) are easily corroded by organic solvents used in chemical fiber production, leading to insulation failure. High-frequency density detection signals are susceptible to interference from harness capacitance effects. Traditional shielding designs struggle to suppress common-mode noise, and mechanical vibrations and frequent insertions and removals in chemical fiber production lines can easily cause core breakage or poor contact. Therefore, this invention proposes a test harness suitable for chemical composition to address the problems mentioned in the background. Utility Model Content

[0004] The purpose of this invention is to address the pain points of signal distortion, corrosion failure, and mechanical durability in existing technologies for testing chemical fibers and density scenarios, and to propose a test wire harness suitable for chemical composition.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A test wire harness suitable for chemical composition includes an aviation head connected to several wire harnesses. Each wire harness has a connector at its end, and a sheath is provided at the connection point between the connector and the wire harness. Each wire harness contains a copper core wire, and several optical fibers are arranged around the copper core wire for transmitting high-frequency signals. Multiple signal lines are also arranged inside the wire harness for transmitting low-frequency signals. The copper core wire is covered with a conductor plating layer to enhance its corrosion and oxidation resistance. Each signal line is covered with a shielding inner layer to isolate internal and external signal interference. A mechanical reinforcement layer is provided outside the shielding inner layer, and an outer shielding layer is provided outside the mechanical reinforcement layer to isolate external electromagnetic interference.

[0007] Preferably, the mechanical reinforcement layer is used to enhance the tensile strength and fatigue resistance of the wire harness. The mechanical reinforcement layer is made of high-strength fibers and metal wires cross-woven together, and fillers are provided between the mechanical reinforcement layer and the outer shielding layer and the inner shielding layer.

[0008] Preferably, the optical fiber is made of glass fiber, and the signal line is made of high-purity copper.

[0009] Preferably, the inner shielding layer is composed of aluminum foil and metal fibers woven together, and the outer shielding layer is composed of tin-plated copper wire woven together.

[0010] Preferably, the conductor plating is a silver plating.

[0011] Preferably, both the aviation head and the connector are provided with a double-contact gold plating layer, which covers the metal contact parts of the connector and the aviation head, and high-quality gold material is used to plate the contact parts.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The wire harness of this utility model adopts a structure combining copper core wire, optical fiber and high-purity copper signal wire. The surface of the copper core wire is coated with silver to enhance its corrosion resistance and conductivity, and ensure the stable transmission of low frequency signals. The optical fiber is made of glass fiber, which is specially used for high frequency signal transmission, reducing signal loss and improving signal transmission quality.

[0014] 2. The wire harness of this utility model has a multi-layer protective structure inside and outside, including an inner shielding layer, a mechanical reinforcement layer and an outer shielding layer, which can effectively isolate internal and external signal interference and electromagnetic interference, and ensure stable signal transmission. The mechanical reinforcement layer is made of high-strength fiber and metal wire interwoven, which greatly improves the tensile strength and fatigue resistance of the wire harness, and is suitable for long-term use in complex environments.

[0015] 3. Both the aviation head and connector of this utility model use a double-contact gold-plated layer to reduce contact resistance, improve the reliability of electrical connection, and prevent signal distortion caused by oxidation and corrosion. The fine gold plating process and high-quality gold material ensure a long-term stable connection and ensure accurate transmission of high-frequency and low-frequency signals. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a test wire harness suitable for chemical composition proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of a wire harness suitable for testing chemical components proposed in this utility model;

[0018] Figure 3 This is a front structural diagram of an aviation head in a test harness for chemical composition proposed in this utility model.

[0019] Figure 4This is a front structural diagram of a connector in a test harness for chemical composition proposed in this utility model.

[0020] In the diagram: 1. Aviation connector; 2. Wire harness; 201. Optical fiber; 202. Inner shielding layer; 203. Outer shielding layer; 204. Conductor plating layer; 205. Mechanical reinforcement layer; 3. Connector; 4. Sheath; 5. Copper core wire; 6. Double contact gold plating layer; 7. Signal line. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1-4 A test wire harness suitable for chemical composition includes an aviation head 1, which is connected to several wire harnesses 2. The ends of the wire harnesses 2 are connected to connectors 3. A sheath 4 is provided at the connection between the connector 3 and the wire harnesses 2. Copper core wires 5 are arranged inside the wire harnesses 2. Several optical fibers 201 are arranged outside the copper core wires 5. The optical fibers 201 are responsible for transmitting high-frequency signals. The optical fibers 201 are made of glass fiber. Signal lines 7 are made of high-purity copper. Multiple signal lines 7 are arranged inside the wire harnesses 2. The signal lines 7 are responsible for transmitting low-frequency signals. The copper core wires 5 are covered with a conductor plating layer 204. The conductor plating layer 204 is used to enhance the corrosion resistance and oxidation resistance of the copper core wires 5.

[0023] The conductor plating layer 204 is a silver plating layer. The wire harness 2 consists of an aviation head 1, several wire harnesses 2, connectors 3, and multiple protective layers. High-quality materials are used to ensure stable signal transmission and durability. The aviation head 1 and connectors 3 are gold-plated to improve the stability of the contact parts and prevent oxidation and corrosion. The wire harness 2 contains multiple transmission media such as copper core wires 5, signal wires 7, and optical fibers 201. The copper core wires 5 are covered with a silver plating layer to improve their corrosion resistance and conductivity. The signal wires 7 use high-purity copper to ensure stable transmission of low-frequency signals. The optical fibers 201 are responsible for the transmission of high-frequency signals and use glass fibers to reduce losses.

[0024] Several signal lines 7 are externally covered by a shielding inner layer 202, which is used to isolate internal and external signal interference. A mechanical reinforcement layer 205 is provided outside the shielding inner layer 202, which is used to enhance the tensile strength and fatigue resistance of the wire harness 2. The mechanical reinforcement layer 205 is made of high-strength fibers and metal wires cross-woven together. Fillers are provided between the mechanical reinforcement layer 205, the shielding outer layer 203, and the shielding inner layer 202. An outer shielding outer layer 203 is provided outside the mechanical reinforcement layer 205, which is used to isolate external electromagnetic interference. The shielding inner layer 202 has aluminum foil and... The wire harness 2 is constructed of cross-woven metal fibers, and the outer shielding layer 203 is made of tin-plated copper wire braid. In order to ensure stable signal transmission and avoid external interference, the wire harness 2 has a multi-layer protection structure. The wire harness 2 has a sheath 4 and a shielding layer on the outside. The inner shielding layer 202 is made of aluminum foil and metal fibers interwoven to isolate electromagnetic interference. The outer shielding layer 203 is made of tin-plated copper wire braid to further enhance anti-interference performance. The mechanical reinforcement layer 205 is made of high-strength fibers and metal wires interwoven to effectively improve the tensile strength and fatigue resistance of the wire harness 2, ensuring that the wire harness 2 is not easily damaged during long-term use in complex environments.

[0025] Both the aviation head 1 and the connector 3 are equipped with a double-contact gold-plated layer 6. The double-contact gold-plated layer 6 covers the metal contact parts of the connector 3 and the aviation head 1. High-quality gold material is used to plate the contact parts. The double-contact gold-plated layer 6 on the connector 3 ensures the high efficiency and reliability of the electrical connection, reduces contact resistance, and improves the signal transmission quality. The gold plating layer covers the metal contact parts of the connector 3 and the aviation head 1. The use of high-quality gold material ensures long-term stable connection performance. Through fine gold plating treatment and material selection, signal distortion caused by corrosion and oxidation can be effectively prevented, and the accurate transmission of high-frequency and low-frequency signals can be guaranteed.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A test harness suitable for chemical composition, comprising an aviation head (1), characterized in that, The aviation head (1) is connected to several wire harnesses (2), and the ends of the wire harnesses (2) are connected to connectors (3). A sheath (4) is provided at the connection between the connector (3) and the wire harnesses (2). Copper core wires (5) are provided inside the wire harnesses (2), and several optical fibers (201) are provided outside the copper core wires (5). The optical fibers (201) are responsible for transmitting high-frequency signals. Multiple signal lines (7) are provided inside the wire harnesses (2). The signal lines (7) are responsible for transmitting low-frequency signals. The copper core wires (5) The outer surface of the signal line (5) is covered with a conductor plating layer (204), which is used to enhance the corrosion resistance and oxidation resistance of the copper core wire (5). The outer surface of the signal line (7) is covered with a shielding inner layer (202), which is used to isolate internal and external signal interference. The outer layer of the shielding inner layer (202) is provided with a mechanical reinforcement layer (205), and the outer layer of the mechanical reinforcement layer (205) is provided with a shielding outer layer (203), which is used to isolate external electromagnetic interference.

2. The test harness for chemical composition according to claim 1, characterized in that, The mechanical reinforcement layer (205) is used to enhance the tensile strength and fatigue resistance of the wire harness (2). The mechanical reinforcement layer (205) is made of high-strength fibers and metal wires woven together. Fillers are provided between the mechanical reinforcement layer (205), the outer shielding layer (203), and the inner shielding layer (202).

3. The test harness for chemical composition 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. The test harness for chemical composition according to claim 1, characterized in that, The inner shielding layer (202) is composed of aluminum foil and metal fiber cross-woven, and the outer shielding layer (203) is composed of tin-plated copper wire woven.

5. The test harness for chemical composition according to claim 1, characterized in that, The conductor plating (204) is a silver plating.

6. The test harness for chemical composition according to claim 1, characterized in that, Both the aviation head (1) and the connector (3) are provided with a double contact gold plating layer (6). The double contact gold plating layer (6) covers the metal contact parts of the connector (3) and the aviation head (1), and high-quality gold material is used to plate the contact parts.

Images