A flexible installable power equipment monitoring device

Abstract

The utility model discloses a kind of electric power equipment monitoring devices of flexible installation, including temperature monitoring terminal and shear shape clamping structure, the shear shape clamping structure is installed in the conduction groove of temperature monitoring terminal, the shear shape clamping structure includes fixed clamping arm and movable clamping arm by center pivot swing joint, fixed clamping arm and movable clamping arm two ends are respectively provided with hand handle and clamping ring, silicon rubber insulation buffer layer is equipped in the clamping ring, buffer layer is embedded with the nickel-plated copper heat-conducting wire of outer insulation layer, the heat-conducting wire is connected in temperature sensor in temperature monitoring terminal, the temperature monitoring terminal is equipped with wireless communication module and movable antenna;The utility model realizes bare-handed quick installation and disassembly by shear shape clamping structure, can self-adapting different specifications of connecting nut, utilize directional heat conduction design in guaranteeing electrical insulation while realizing accurate temperature measurement, especially suitable for temperature monitoring of outdoor cable terminal head.

Description

Technical Field

[0001] This utility model relates to the field of power equipment monitoring, and in particular to a power equipment monitoring device that can be flexibly installed. Background Technology

[0002] In power systems, cable terminals are critical components connecting cables to substation equipment or other cables. Their operating status directly affects the reliability and safety of the power grid. Due to long-term exposure to load current, environmental stress, and potential installation defects, cable terminals are prone to becoming high-risk points for failure. Overheating at the connection between the cable terminal and the cable due to increased contact resistance is a common precursor to failure. Therefore, temperature monitoring of cable terminals, especially their connection points, is an important means of achieving condition-based maintenance and preventing accidents.

[0003] Currently, there are various applications for temperature monitoring devices on power equipment such as cable terminals, but their installation methods still have many limitations. On the one hand, common installation methods often involve directly fixing the sensor to the device being measured using cable ties or metal clamps. This method is cumbersome, requires tools, and cable ties are prone to aging and breakage, while metal clamps pose a short-circuit risk. Magnetic adsorption installation is relatively convenient, but it is only applicable to ferromagnetic materials and cannot be used on copper, aluminum, or insulating materials commonly found in cable terminals. Flange bolt connections require pre-fabricated interfaces and usually require power outages during installation, resulting in poor flexibility and making them unsuitable for already operational lines. On the other hand, for scenarios such as outdoor cable terminal connection nuts, different manufacturers and specifications of terminal connection nuts vary in size, and installation space is often limited by adjacent equipment. This requires the monitoring device to have a compact structure and adaptive size capabilities. Outdoor environments are also more complex and variable, making it difficult for monitoring equipment to maintain long-term reliability.

[0004] Therefore, how to provide a power equipment monitoring device that can be flexibly installed is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a power equipment monitoring device that can be flexibly installed. This invention can effectively monitor power equipment such as cables, while the installation method is simple and quick, and ensures stable and reliable installation.

[0006] A power equipment monitoring device that can be flexibly installed according to an embodiment of the present invention includes a temperature monitoring terminal and a scissor clamping structure. The scissor clamping structure is installed in the conductive groove of the temperature monitoring terminal. The temperature monitoring terminal is provided with a temperature sensor and a wireless communication module. An external antenna is movably installed on one side of the temperature monitoring terminal.

[0007] Furthermore, the scissor-shaped clamping structure includes a fixed clamping arm and a movable clamping arm. The fixed clamping arm is fixedly connected to the temperature monitoring terminal, and the middle section of the movable clamping arm is movably connected to the middle section of the fixed clamping arm through a central rotating shaft.

[0008] Furthermore, a hand handle is provided at one end of the fixed clamping arm and the movable clamping arm on the same side, and a locking separation spring is provided between the two sets of hand handles, with the two ends of the locking separation spring respectively hinged to the two sets of hand handles.

[0009] Furthermore, the retaining spring keeps the scissor clamping structure in a relaxed state through its elastic force.

[0010] Furthermore, each of the fixed clamping arm and the movable clamping arm is provided with a clamping ring on the other side. The two sets of clamping rings are of the same specification, and an insulating buffer layer is provided inside the clamping ring. The insulating buffer layer is made of silicone rubber.

[0011] Furthermore, the insulating buffer layer is embedded with a heat-conducting wire, which is fixedly attached to the inner wall of the clamping ring, the fixed clamping arm and the moving clamping arm and connected to the temperature sensor of the temperature monitoring terminal. The heat-conducting wire is a nickel-plated copper wire and is covered with an insulating layer on the outside.

[0012] Furthermore, one end of the external antenna is hinged to the temperature monitoring terminal, and the temperature monitoring terminal has an antenna groove on the side near the external antenna. The external antenna is electrically connected to the internal wireless communication module of the temperature monitoring terminal.

[0013] The beneficial effects of this utility model are: This utility model features a unique scissor-shaped clamping structure design, particularly with a hand handle and a locking release spring. This allows operators to quickly clamp and release the device by hand without any tools. The locking release spring provides a constant preload to open the clamping end, ensuring the device can stably clamp onto cable termination nuts of different specifications, significantly improving installation efficiency. It is especially suitable for outdoor high-voltage environments where power is not interrupted.

[0014] This invention innovatively embeds a nickel-plated copper heat-conducting wire with an outer insulating layer within the insulating buffer layer, forming a directional and efficient heat conduction path from the clamping point to the temperature sensor. This design, while ensuring absolute electrical insulation, greatly reduces heat loss during the transfer process, ensuring the accuracy and response speed of temperature monitoring, and providing a reliable data basis for accurately judging the equipment status. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a flexibly installable power equipment monitoring device proposed in this utility model. Figure 2 This is a schematic diagram of the installation structure of a flexibly installable power equipment monitoring device proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the scissor clamping structure of a power equipment monitoring device that can be flexibly installed according to this utility model.

[0017] Figure 4 This is a schematic diagram of the clamping ring of a power equipment monitoring device that can be flexibly installed according to this utility model.

[0018] In the diagram: 1. Temperature monitoring terminal; 2. Scissor-shaped clamping structure; 3. External antenna; 11. Conductive groove; 12. Antenna groove; 21. Fixed clamping arm; 22. Movable clamping arm; 23. Central pivot; 24. Hand handle; 25. Fixed release spring; 26. Clamping ring; 27. Heat-conducting wire; 261. Insulating buffer layer. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0020] refer to Figures 1-2 It includes a temperature monitoring terminal 1 and a scissor clamping structure 2. The scissor clamping structure 2 is installed in the conduction groove 11 of the temperature monitoring terminal 1. The temperature monitoring terminal 1 is equipped with a temperature sensor and a wireless communication module. An external antenna 3 is movably installed on one side of the temperature monitoring terminal 1.

[0021] In this embodiment, the temperature monitoring terminal 1 is made of weather-resistant engineering plastic injection molding. Its internal circuit board integrates a high-precision digital temperature sensor, processor and wireless communication module. The terminal shell can effectively resist outdoor rain and dust erosion. The conduction groove 11 is matched with the shape of the scissor clamping structure 2. The groove is provided with positioning protrusions to ensure accurate positioning during installation.

[0022] refer to Figure 3 The scissor-shaped clamping structure 2 includes a fixed clamping arm 21 and a movable clamping arm 22. The fixed clamping arm 21 is fixedly connected to the temperature monitoring terminal 1, and the middle section of the movable clamping arm 22 is movably connected to the middle section of the fixed clamping arm 21 through a central rotating shaft 23.

[0023] In this embodiment, the fixed clamping arm 21 and the movable clamping arm 22 are made of high-strength aluminum alloy and the surface is anodized, which has excellent mechanical strength and corrosion resistance. The central rotating shaft 23 is a stainless steel pin, which ensures that the two arms can rotate flexibly and are durable. By setting the fixed clamping arm 21 and the movable clamping arm 22, the need for flexible manual opening and closing of the device can be met, and the stability between the scissor clamping structure 2 and the temperature monitoring terminal 1 can be ensured, thus preventing the structure from loosening and separating.

[0024] refer to Figure 3 Each of the fixed clamping arm 21 and the movable clamping arm 22 is provided with a hand handle 24 on one side. A fixed separation spring 25 is provided between the two sets of hand handles 24. The two ends of the fixed separation spring 25 are respectively hinged to the two sets of hand handles 24. The fixed separation spring 25 keeps the scissor clamping structure 2 in a relaxed state by means of elasticity.

[0025] In this embodiment, the surface of the handle 24 is provided with anti-slip texture and covered with an insulating rubber sleeve, which makes it easy for operators to hold and operate while wearing insulating gloves. The locking release spring 25 is a linear compression spring, and its two ends are connected to the mounting holes on the handle 24 through pins. By setting the locking release spring 25, the scissor clamping structure 2 is provided with an elastic restoring force that makes the end of the handle 24 open, and also provides a clamping force for the clamping ring 26 in the working state.

[0026] refer to Figure 3-4 On the other side of the fixed clamping arm 21 and the movable clamping arm 22, there is a clamping ring 26. The two sets of clamping rings 26 are of the same specification. An insulating buffer layer 261 is provided inside the clamping ring 26. The insulating buffer layer 261 is made of silicone rubber.

[0027] In this embodiment, the clamping ring 26 has a large inner diameter, which can accommodate most cable end connection nuts. The insulating buffer layer 261 is made of silicone rubber, which has the characteristics of high friction coefficient, high insulation performance and low thermal conductivity, and completely covers the inner ring of the clamping ring 26. By setting the clamping ring 26, it can adapt to different nut sizes, provide sufficient clamping friction, and a certain degree of elastic deformation can tightly wrap the clamping part, increase the contact area, and ensure insulation performance, so that the device can be stably and safely connected to the cable end.

[0028] refer to Figures 3-4 The insulating buffer layer 261 has a heat-conducting wire 27 embedded in it. The heat-conducting wire 27 is fixedly attached to the inner wall of the clamping ring 26, the fixed clamping arm 21 and the moving clamping arm 22 and connected to the temperature sensor of the temperature monitoring terminal 1. The heat-conducting wire 27 is a nickel-plated copper wire and is covered with an insulating layer on the outside.

[0029] In this embodiment, by setting a heat-conducting wire 27, an efficient heat conduction path is formed between the clamping ring 26 and the temperature sensor of the temperature monitoring terminal 1. The low thermal conductivity and insulation of the path support reduces heat loss and avoids damage to the circuit board and precision instruments in the temperature monitoring terminal 1 by high voltage. It can also effectively prevent the device from being damaged and unable to alarm when the power equipment fails, thereby improving the monitoring accuracy and reliability of the device.

[0030] refer to Figures 1-2 One end of the external antenna 3 is hinged to the temperature monitoring terminal 1. The temperature monitoring terminal 1 has an antenna groove 12 on the side near the external antenna 3. The external antenna 3 is electrically connected to the internal wireless communication module of the temperature monitoring terminal 1.

[0031] In this implementation scheme, by setting an external antenna 3, remote monitoring of equipment such as cables can be realized, alarms can be quickly triggered for faults, faults can be reported in a timely manner, and data support can be provided for maintenance. When not in operation, the external antenna 3 can be stored in the antenna groove 12 for easy transportation and storage, and to avoid damage.

[0032] Working principle: During installation, the operator manually squeezes the two handles 24 to overcome the elastic preload of the release spring 25, causing the moving clamping arm 22 to rotate around the central axis 23. This causes the two clamping rings 26 to close until they completely overlap. At this point, the overlapping clamping rings 26 are fitted into the connecting nut of the cable terminal to be monitored. After releasing the handles 24, the restoring force of the release spring 25 drives the two handles 24 to move away from each other. This leverages the two clamping rings 26 to quickly open to both sides until the inner insulating buffer layer 261 is tightly attached to and clamped onto the opposite two sides of the connecting nut. The high friction characteristics of the insulating buffer layer 261 provide sufficient static friction, and the elastic deformation of the insulating buffer layer 261 also makes the nut more tightly wrapped, effectively preventing the device from loosening in a vibration environment. This makes it compatible with outdoor working conditions and achieves tool-free, fast, and reliable manual installation.

[0033] During the monitoring phase, the heat at the cable terminal connection nut is transferred to the insulation buffer layer 261 through physical contact. Since the insulation buffer layer 261 is made of a low thermal conductivity material, the heat will not diffuse over a large area. Instead, it will be efficiently conducted through the directional heat-conducting wire 27 embedded inside. This heat-conducting wire 27 acts as an independent heat channel, accurately transferring the heat to the high-precision temperature sensor inside the temperature monitoring terminal 1. The sensor converts the temperature signal into an electrical signal, which is then processed by the processor inside the temperature monitoring terminal 1. The data is then remotely transmitted to the monitoring center through the wireless communication module and the external antenna 3, thereby achieving real-time, online, and accurate monitoring of the operating temperature of the cable terminal and improving the efficiency of maintenance and troubleshooting.

[0034] 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 flexibly installable power equipment monitoring device, characterized in that, It includes a temperature monitoring terminal (1) and a scissor clamping structure (2). The scissor clamping structure (2) is installed in the conduction groove (11) of the temperature monitoring terminal (1). The temperature monitoring terminal (1) is equipped with a temperature sensor and a wireless communication module. An external antenna (3) is movably installed on one side of the temperature monitoring terminal (1).

2. The power equipment monitoring device that can be flexibly installed according to claim 1, characterized in that, The scissor clamping structure (2) includes a fixed clamping arm (21) and a movable clamping arm (22). The fixed clamping arm (21) is fixedly connected to the temperature monitoring terminal (1), and the middle section of the movable clamping arm (22) is movably connected to the middle section of the fixed clamping arm (21) through a central rotating shaft (23).

3. The power equipment monitoring device that can be flexibly installed according to claim 2, characterized in that, Each of the fixed clamping arm (21) and the movable clamping arm (22) is provided with a hand handle (24) on one side. A fixed separation spring (25) is provided between the two sets of hand handles (24). The two ends of the fixed separation spring (25) are respectively hinged to the two sets of hand handles (24).

4. The power equipment monitoring device that can be flexibly installed according to claim 3, characterized in that, The fixed separation spring (25) keeps the scissor clamping structure (2) in a relaxed state by means of elastic force.

5. The power equipment monitoring device that can be flexibly installed according to claim 2, characterized in that, Each of the fixed clamping arm (21) and the movable clamping arm (22) is provided with a clamping ring (26) on the other side. The two sets of clamping rings (26) are of the same specification. An insulating buffer layer (261) is provided inside the clamping ring (26). The insulating buffer layer (261) is made of silicone rubber.

6. The power equipment monitoring device that can be flexibly installed according to claim 5, characterized in that, The insulating buffer layer (261) has a heat-conducting wire (27) embedded in it. The heat-conducting wire (27) is fixedly attached to the inner wall of the clamping ring (26), the fixed clamping arm (21) and the moving clamping arm (22) and connected to the temperature sensor of the temperature monitoring terminal (1). The heat-conducting wire (27) is a nickel-plated copper wire and is covered with an insulating layer on the outside.

7. The power equipment monitoring device that can be flexibly installed according to claim 1, characterized in that, One end of the external antenna (3) is hinged to the temperature monitoring terminal (1). The temperature monitoring terminal (1) has an antenna groove (12) on the side near the external antenna (3). The external antenna (3) is electrically connected to the internal wireless communication module of the temperature monitoring terminal (1).

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