Liquid leakage detection line

By employing a design in which parallel conductors, insulating isolation layers, protective layers, and resistors are used in the leakage detection line, the problems of high false alarm rate, inaccurate leakage degree, and poor anti-interference ability are solved, thereby improving the reliability and detection accuracy of the leakage detection line and enabling the patented technology to be applied to leakage detection in servers and data centers.

CN224122114UActive Publication Date: 2026-04-14AMPHENOL ASSEMBLETECH (XIAMEN) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
AMPHENOL ASSEMBLETECH (XIAMEN) CO LTD
Filing Date
2025-04-17
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing leak detection lines have a high false alarm rate, cannot accurately locate the extent of leakage, have poor anti-interference capabilities, and cannot detect open circuits in the leads in a timely manner, resulting in insufficient reliability and accuracy of detection.

Method used

Two parallel conductors are used, covered with an insulating layer and a protective layer. A resistor is connected in series between the conductors. The resistor is used to calibrate the initial resistance value and measure the resistance change to determine the degree of leakage and open circuit of the conductor. At the same time, the water permeability and water absorption of the glass fiber protective layer are used for leakage detection.

Benefits of technology

It significantly reduces false alarm rate, improves detection accuracy and reliability, can accurately determine the degree of leakage and open circuit of conductors, enhances anti-electromagnetic interference capability, reduces cost and adapts to complex environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid leakage detection line, which belongs to the field of liquid leakage detection, and comprises at least two conductors, insulation isolation layers, a protection layer and a resistor, each conductor is coated with the insulation isolation layer, all the conductors and the insulation isolation layers are coated with the protection layer, and the resistor is electrically connected with the conductors. According to the liquid leakage detection line, the initial resistance value between the conductors is calibrated through the resistor, interference of environmental factors is effectively weakened, and the false alarm rate is greatly reduced. Meanwhile, by measuring the resistance change between the conductors, the liquid leakage degree can be accurately judged, and whether the conductors are open-circuited or not can be judged according to the resistance measurement result. In addition, the resistor plays a key role in stabilizing the circuit, and the anti-electromagnetic interference capability of the detection line is remarkably enhanced.
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Description

Technical Field

[0001] This utility model belongs to the field of leakage detection, and in particular relates to a leakage detection line. Background Technology

[0002] Leak detection lines play a crucial role in industrial production, electronic equipment manufacturing, and various fields requiring liquid leakage monitoring. They can promptly detect liquid leaks, providing an effective technical means to prevent safety accidents and reduce property damage. However, existing leak detection lines on the market have revealed numerous problems in practical applications, which urgently need to be addressed.

[0003] On the one hand, the existing leak detection lines have a persistently high false alarm rate. Changes in ambient humidity are a significant influencing factor. In high-humidity environments, moisture in the air condenses on the surface of the detection line, forming a thin water film. This water film alters the resistance between the wires, triggering the detection signal and leading to false alarms. Simultaneously, dust accumulation is also a concern. After prolonged use, dust easily adheres to the detection lines. When dust accumulates to a certain level, especially under humid conditions, it may affect the electrical performance of the detection lines, causing abnormal resistance between the wires and triggering unnecessary alarms.

[0004] On the other hand, traditional leak detection lines have serious limitations in detecting the extent of leaks. They can only detect whether liquid has come into contact with the detection line and will sound an alarm once contact is detected, but they cannot accurately pinpoint the extent of the leak. In practical applications, different levels of leaks require different response measures and have varying degrees of urgency.

[0005] Furthermore, existing leak detection lines have poor anti-interference capabilities. In modern industrial environments and complex electronic equipment operating scenarios, there are numerous sources of electromagnetic interference. For example, large motors and transformers generate strong electromagnetic fields during operation, which can affect the detection accuracy of the line. When the detection line is in a strong electromagnetic interference environment, its internal electronic components may be affected, generating incorrect electrical signals, leading to inaccurate detection results and failing to accurately reflect the true extent of the leak.

[0006] Another important issue is that existing leak detection lines cannot determine whether the lead wires are open-circuited. During long-term use, the lead wires may break and become open-circuited due to mechanical wear, corrosion, and other reasons. Once an open circuit occurs, the detection line cannot function properly. However, current detection technologies cannot detect this open circuit in a timely manner, causing the detection line to continue operating in a faulty state, which greatly reduces the reliability and effectiveness of the detection. Utility Model Content

[0007] The purpose of this invention is to provide a leakage detection line to overcome at least one of the above-mentioned defects in the prior art.

[0008] To achieve this objective, the present invention adopts the following technical solution:

[0009] The present invention provides a leakage detection line, comprising at least two conductors, an insulating layer, a protective layer, and a resistor. Each conductor is covered with an insulating layer, and the protective layer covers all conductors and the insulating layer. The resistor is electrically connected to the conductors.

[0010] Preferably, there are two conductors, which are arranged parallel to each other.

[0011] Preferably, the resistor is connected in series between the two conductors via a wire.

[0012] Preferably, the two ends of the wire are connected to the ends of the two conductors respectively.

[0013] Preferably, the conductor is tin-plated copper wire.

[0014] Preferably, the insulating layer is made of thermoplastic resin wound or woven.

[0015] Preferably, the thermoplastic resin is polyphenylene sulfide.

[0016] Preferably, the protective layer is made of a high-temperature resistant material that is wound or woven.

[0017] Preferably, the high-temperature resistant material is glass fiber.

[0018] Preferably, the resistance value is 100-1000KΩ.

[0019] The beneficial effects of this utility model are as follows:

[0020] 1. By calibrating the initial resistance value between conductors using a resistor, environmental interference is effectively reduced, significantly lowering the false alarm rate. Simultaneously, by measuring the resistance change between conductors, the degree of leakage can be accurately determined, and whether a conductor is open-circuited can be determined based on the resistance measurement results. Furthermore, the resistor plays a crucial role in stabilizing the circuit, significantly enhancing the detection lead's resistance to electromagnetic interference.

[0021] 2. The design uses two parallel conductors, which not only creates a stable capacitance and a uniform electric field, greatly facilitating signal transmission and processing and improving detection accuracy and reliability, but also simplifies manufacturing and reduces costs due to its simple structure.

[0022] 3. Fiberglass itself possesses excellent high-temperature resistance, effectively protecting the internal structure from damage caused by high-temperature environments. After being wound or woven, its structure forms numerous micropores, giving the protective layer water absorption. When liquid is present, the protective layer can quickly absorb the liquid, and through these pores, the liquid can rapidly penetrate to the inner insulating layer.

[0023] 4. While providing insulation, the insulating layer also allows for water permeability. Therefore, liquids that have passed through the protective layer can easily penetrate the insulating layer and eventually contact the conductor, thus enabling the detection of liquid leaks. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0025] Figure 2 This is a top view of the structure of this utility model.

[0026] Figure 3 This is a schematic diagram of the main structure of this utility model.

[0027] The labels in the attached diagram are: 1-conductor, 2-insulating layer, 3-protective layer, 4-resistor, 5-wire. Detailed Implementation

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0029] Contents not described in detail in this specification are existing technologies known to those skilled in the art. In the description of this utility model, it should be understood that terms such as "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model. Furthermore, terms such as "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] like Figures 1 to 3 As shown, the leakage detection line provided in this embodiment includes two parallel conductors 1, an insulating layer 2, a protective layer 3, and a resistor 4. Each conductor 1 is covered with an insulating layer 2, and the protective layer 3 covers all conductors 1 and the insulating layer 2. The resistor 4 is electrically connected to the conductors 1. Specifically, the resistor 4 is connected in series between the two conductors 1 via a wire 5, and the two ends of the wire 5 are respectively connected to the ends of the two conductors 1.

[0031] This invention's leakage detection line boasts numerous innovative advantages. It calibrates the initial resistance 4 between conductors 1 using resistor 4, effectively reducing environmental interference and significantly lowering the false alarm rate. Simultaneously, by measuring the change in resistance 4 between conductors 1, the degree of leakage can be accurately determined, and the measurement results can also be used to determine whether conductor 1 is open-circuited. Furthermore, resistor 4 plays a crucial role in stabilizing the circuit, significantly enhancing the detection line's resistance to electromagnetic interference.

[0032] Taking a water-cooled server as an example, the leakage detection line is laid at the water-cooling plate or interface. Once a leak occurs, the detection line quickly absorbs the moisture and triggers an alarm. Maintenance personnel can understand the extent of the leak in a timely manner based on the change in resistance and carry out the handling work efficiently.

[0033] In terms of structural design, the detection line uses two parallel conductors 1. This design not only forms a stable capacitance and a uniform electric field, greatly facilitating signal transmission and processing and improving detection accuracy and reliability, but also simplifies manufacturing and reduces costs due to its simple structure.

[0034] In summary, this leak detection line features a low false alarm rate, strong anti-interference capability, accurate positioning of the leak level, and detection of open circuit in conductor 1. It can be widely used in leak detection in scenarios such as servers and data centers, providing strong support for the safe and stable operation of related equipment.

[0035] In this embodiment, conductor 1 is a tin-plated copper wire, which has the characteristics of corrosion resistance and good conductivity.

[0036] The insulating layer 2 is made of thermoplastic resin through winding or weaving, and is used to isolate adjacent conductors 1 to prevent short circuits caused by contact between adjacent conductors 1. The protective layer 3 is made of high-temperature resistant material through winding or weaving. In this embodiment, the thermoplastic resin is polyphenylene sulfide, which has the characteristics of high temperature resistance, corrosion resistance, radiation resistance, and high flame retardancy. The high-temperature resistant material in this embodiment is glass fiber.

[0037] Glass fiber itself possesses excellent high-temperature resistance, effectively protecting the internal structure from damage caused by high-temperature environments. After being wound or woven, its structure forms numerous micropores, giving the protective layer 3 water absorption properties. When liquid is present, the protective layer 3 can quickly absorb the liquid, and through these pores, the liquid can rapidly penetrate to the inner insulating layer 2.

[0038] The insulating layer 2 serves both insulating and waterproofing functions. Therefore, liquid passing through the protective layer 3 can easily penetrate the insulating layer 2 and eventually contact the conductor 1, thus enabling the detection of liquid leaks.

[0039] In addition, the protective layer 3 provides physical protection for the internal structure, effectively resisting external mechanical impacts and dust intrusion, and comprehensively protecting the integrity and functionality of the internal components of the equipment.

[0040] The resistance of resistor 4 is 100-1000KΩ. The resistance value of resistor 4 is selected based on the length and material properties of conductor 1.

[0041] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A leakage detection line, characterized in that: It includes at least two conductors (1), an insulating layer (2), a protective layer (3), and a resistor (4); each conductor (1) is covered with an insulating layer (2); The protective layer (3) covers all the conductors (1) and the insulating layer (2); the resistor (4) is electrically connected to the conductors (1).

2. The leakage detection line according to claim 1, characterized in that: The conductor (1) consists of two conductors, which are arranged parallel to each other.

3. The leakage detection line according to claim 2, characterized in that: The resistor (4) is connected in series between the two conductors (1) via a wire (5).

4. The leakage detection line according to claim 3, characterized in that: The two ends of the wire (5) are respectively connected to the ends of the two conductors (1).

5. The leakage detection line according to claim 1, characterized in that: The conductor (1) is a tin-plated copper wire.

6. The leakage detection line according to claim 1, characterized in that: The insulating layer (2) is made of thermoplastic resin by winding or weaving.

7. The leakage detection line according to claim 6, characterized in that: The thermoplastic resin is polyphenylene sulfide.

8. The leakage detection line according to claim 1, characterized in that: The protective layer (3) is made of high-temperature resistant material wound or woven.

9. The leakage detection line according to claim 8, characterized in that: The high-temperature resistant material is glass fiber.

10. The leakage detection line according to claim 1, characterized in that: The resistance of the resistor (4) is 100-1000KΩ.