A wireless sensor for monitoring the corrosion status of substation grounding grid

Abstract

This utility model relates to the field of power system monitoring technology, specifically to a wireless monitoring sensor for the corrosion status of substation grounding grids. It includes a cylindrical base, a heat dissipation chassis fixedly mounted on the upper end of the cylindrical base, a layered shielding chamber fixedly mounted on the upper end of the heat dissipation chassis, and a shell fixedly mounted on the upper end of the heat dissipation chassis. The shell is configured as an umbrella cone structure, and a pointed cone-shaped energy-concentrating head is fixedly mounted on the upper end of the shell. The pointed cone-shaped energy-concentrating head is made of conductive and corrosion-resistant materials. Utilizing the principle of point discharge, this utility model enhances the ability to converge spatial electromagnetic field signals, thereby improving signal acquisition sensitivity and ensuring the accuracy of monitoring data. Simultaneously, by configuring the shell as an umbrella cone structure and providing an internal insulating cavity filled with heat-insulating material, the device's environmental adaptability is improved.

Description

Technical Field

[0001] This utility model relates to the field of power system monitoring technology, specifically a wireless monitoring sensor for the corrosion status of substation grounding grid. Background Technology

[0002] The substation grounding grid is a core facility for ensuring the safe operation of the power system, playing a crucial role in discharging fault currents, stabilizing potential, and protecting equipment and personnel safety.

[0003] Traditional sensor housings often use a single insulating material. When monitoring sensors are working outdoors, they are susceptible to measurement errors or leakage risks due to temperature differences and dirt. At the same time, the internal components of traditional sensors are usually directly installed inside the housing, which can easily cause electromagnetic interference between the components and make it difficult to capture low-frequency electromagnetic field changes caused by grounding grid corrosion.

[0004] Therefore, a wireless monitoring sensor for the corrosion status of substation grounding grid is proposed to solve the problems mentioned above. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a wireless monitoring sensor for the corrosion status of substation grounding grids, which can solve the problem of inaccurate outdoor monitoring.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cylindrical base, a heat dissipation chassis fixedly disposed on the upper end of the cylindrical base, a layered shielding chamber fixedly disposed on the upper end of the heat dissipation chassis, an outer shell fixedly disposed on the upper end of the heat dissipation chassis, the outer shell being configured as an umbrella cone structure, and a pointed cone energy focusing head fixedly disposed on the upper end of the outer shell, the pointed cone energy focusing head being configured as a sharp cone shape.

[0007] Preferably, a plurality of heat dissipation grooves are provided through the upper surface of the heat dissipation chassis, the heat dissipation grooves are distributed in a ring on the upper surface of the heat dissipation chassis, and the interior of the heat dissipation grooves is filled with metal foam heat dissipation body.

[0008] Preferably, the layered shielded cavity is internally provided with a power supply cavity, a processing and transmission cavity, and a signal acquisition cavity, and each cavity inside the layered shielded cavity is isolated by a shielding shell.

[0009] Preferably, the power supply cavity is located at the bottom of the layered shielding chamber, the processing and transmission cavity is located in the middle of the layered shielding chamber, the processing and transmission cavity is located above the power supply cavity, and the signal acquisition cavity is located in the part of the layered shielding chamber near the cone.

[0010] Preferably, the outer shell is disposed outside the layered shielding cavity, and the edge of the outer shell is disposed above a plurality of heat dissipation slots.

[0011] Preferably, the outer shell is made entirely of insulating material, and an insulating cavity is provided inside the outer shell, which is filled with heat-insulating material.

[0012] Preferably, a plurality of conductive serrations are fixedly provided on the edge of the outer shell umbrella cone surface, and the conductive serrations are evenly distributed along the edge of the outer shell umbrella surface.

[0013] Compared with the prior art, this utility model provides a wireless monitoring sensor for the corrosion status of substation grounding grids, which has the following advantages:

[0014] 1. This utility model adopts a pointed cone-shaped energy-concentrating head and is made of conductive and corrosion-resistant materials. By utilizing the principle of tip discharge, it can enhance the ability to converge spatial electromagnetic field signals, thereby improving signal acquisition sensitivity and ensuring the accuracy of monitoring data.

[0015] 2. By setting the outer shell as an umbrella cone structure, this utility model can effectively block rainwater, dust and other external debris, providing good protection for the internal structure of the equipment and improving the durability of the equipment in the outdoor environment.

[0016] 3. This utility model uses an insulating material to make the entire outer shell, and sets up an insulating cavity inside and fills it with heat insulation material. The insulating outer shell can ensure the safe operation of the sensor in the high electric field environment of the substation, while improving the equipment's adaptability to the environment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the wireless monitoring sensor for the corrosion status of substation grounding grid proposed in this utility model.

[0018] Figure 2 This is a schematic diagram of the heat sink structure of the wireless monitoring sensor for the corrosion status of the substation grounding grid proposed in this utility model.

[0019] Figure 3 This is a schematic diagram of the layered shielded chamber structure of the wireless monitoring sensor for the corrosion status of substation grounding grid proposed in this utility model.

[0020] Figure 4 This is a conductive sawtooth distribution diagram of the wireless monitoring sensor for the corrosion status of substation grounding grid proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the housing structure of the wireless monitoring sensor for the corrosion status of the substation grounding grid proposed in this utility model.

[0022] In the diagram: 1. Cylindrical base; 2. Heat dissipation chassis; 3. Heat dissipation groove; 4. Outer shell; 5. Conical energy focusing head; 6. Layered shielding chamber; 7. Power supply chamber; 8. Processing and transmission chamber; 9. Signal acquisition chamber; 10. Conductive serrations. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example:

[0025] Please see Figure 1 - Figure 5 The wireless monitoring sensor for the corrosion status of a substation grounding grid in this embodiment includes a cylindrical base 1, a heat dissipation chassis 2 fixedly installed on the upper end of the cylindrical base 1, a layered shielding chamber 6 fixedly installed on the upper end of the heat dissipation chassis 2, an outer shell 4 fixedly installed on the upper end of the heat dissipation chassis 2, the outer shell 4 being configured as an umbrella cone structure, and a pointed cone energy focusing head 5 fixedly installed on the upper end of the outer shell 4, the pointed cone energy focusing head 5 being configured as a sharp cone.

[0026] During use, the cylindrical base 1 is fixed to the outside of the tower with bolts, thereby securing the entire device. A heat dissipation chassis 2 is fixed to the upper end of the cylindrical base 1, supporting and dissipating heat for the structure above it. The layered shielding chamber 6 at the upper end of the heat dissipation chassis 2 separates the chambers to prevent electromagnetic interference and power fluctuations from affecting signal acquisition accuracy. The outer shell 4 of the layered shielding chamber 6 is designed as an umbrella cone structure, which effectively shields against rain, dust, and other external debris. The pointed cone energy focusing head 5 at the upper end of the outer shell 4 is designed as a sharp cone with the tip pointing upwards. The pointed cone energy focusing head 5 is made of conductive and corrosion-resistant materials, such as copper-beryllium alloy. Based on the principle of tip discharge, it can enhance the ability to converge spatial electromagnetic field signals and improve signal acquisition sensitivity.

[0027] Several heat dissipation grooves 3 are provided through the upper surface of the heat dissipation chassis 2. The heat dissipation grooves 3 are distributed in a ring on the upper surface of the heat dissipation chassis 2, and the interior of the heat dissipation grooves 3 is filled with metal foam heat dissipation body.

[0028] When the sensor is working, the heat generated by the internal electronic components is transferred to the heat dissipation chassis 2. The heat is then quickly diffused into the air through the metal foam heat sink in the heat dissipation groove 3, which significantly improves the heat dissipation efficiency. The metal foam heat sink is made of metal foam with heat dissipation properties, such as copper foam.

[0029] The layered shielded chamber 6 has a power supply chamber 7, a processing and transmission chamber 8, and a signal acquisition chamber 9 that are arranged through it. Each chamber inside the layered shielded chamber 6 is isolated by a shielding shell. The power supply chamber 7 is located at the bottom of the layered shielded chamber 6, the processing and transmission chamber 8 is located in the middle of the layered shielded chamber 6, the processing and transmission chamber 8 is located above the power supply chamber 7, and the signal acquisition chamber 9 is located inside the layered shielded chamber 6 near the cone.

[0030] When the sensor is working, the shielding shell and the outer shell of the layered shielding chamber 6 form a complete shielding shell structure, effectively isolating external electromagnetic interference and signal crosstalk between chambers. The power supply chamber 7 houses the power supply module, the processing and transmission chamber 8 houses the data processing and wireless transmission module, and the signal acquisition chamber 9 houses the corrosion signal acquisition element. All modules are connected by shielded wires to ensure stable signal transmission.

[0031] The outer shell 4 is located outside the layered shielding chamber 6, and the edge of the outer shell 4 is located above several heat dissipation slots 3;

[0032] The edge of the outer shell 4 extends outward to the top of the heat dissipation groove 3 and maintains a distance from the upper surface of the heat dissipation groove 3. This not only prevents the outer shell 4 from blocking the ventilation of the heat dissipation groove 3, but also prevents rainwater, fallen leaves and other debris from falling directly into the heat dissipation groove 3, ensuring the long-term effectiveness of the heat dissipation structure.

[0033] The outer shell 4 is made entirely of insulating material, and an insulating cavity is provided inside the outer shell 4. The insulating cavity of the outer shell 4 is filled with heat-insulating material.

[0034] When the sensor is working, the insulated housing 4 ensures the sensor operates safely in the high electric field environment of the substation and avoids the risk of leakage. The heat insulation layer inside the housing 4 prevents the high temperature from affecting the performance of the electronic components in the layered shielded chamber 6. In the low temperature environment in winter, it can also reduce the loss of internal heat and prevent condensation inside the chamber. The housing 4 is made of insulating materials, such as epoxy resin, and the insulating cavity is filled with materials with heat insulation properties, such as silica aerogel.

[0035] Several conductive serrations 10 are fixedly provided on the edge of the umbrella cone surface of the outer shell 4, and the conductive serrations 10 are evenly distributed along the edge of the umbrella surface of the outer shell 4.

[0036] When the sensor is working, the conductive serrations 10 can release the static charge accumulated on the surface of the housing 4, reduce the interference of static electricity on the internal electronic components, and optimize the electric field distribution on the surface of the housing 4 to avoid corona discharge. The serrated tip design utilizes the principle of tip discharge to quickly release the static charge accumulated on the surface of the housing 4 into the air. The conductive serrations 10 are made of conductive materials, such as brass.

[0037] The working principle of the above embodiment is as follows: the cylindrical base 1 is fixed to the outside of the tower with bolts, the outer shell 4 shields against rain and dust, and its edge extends above the heat dissipation groove 3, which not only ensures the ventilation of the heat dissipation groove 3 but also prevents debris from falling in. During operation, the power supply chamber 7 in the layered shielded chamber 6 supplies power to the signal acquisition chamber 9 and the processing and transmission chamber 8. The shielding shell isolates electromagnetic interference, and each module transmits signals stably through shielded wires. The pointed cone energy-gathering head 5 at the top of the outer shell 4 uses the principle of tip discharge to gather spatial electromagnetic field signals and enhance the signal acquisition sensitivity. The conductive serrations 10 on the edge of the umbrella surface of the outer shell 4 release static charge and optimize the electric field distribution to avoid corona discharge. At the same time, the heat dissipation chassis 2 dissipates the internal heat through the heat dissipation groove 3, ensuring that the equipment operates stably in the substation environment and realizing accurate monitoring and wireless data transmission under corrosive conditions.

[0038] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. They are common knowledge in the field. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wireless monitoring sensor for corrosion state of a substation grounding grid, characterized in that: It includes a cylindrical base (1), a heat dissipation chassis (2) is fixedly installed on the upper end of the cylindrical base (1), a layered shielding chamber (6) is fixedly installed on the upper end of the heat dissipation chassis (2), an outer shell (4) is fixedly installed on the upper end of the heat dissipation chassis (2), the outer shell (4) is configured as an umbrella cone structure, and a pointed cone energy focusing head (5) is fixedly installed on the upper end of the outer shell (4), the pointed cone energy focusing head (5) is configured as a sharp cone.

2. The wireless monitoring sensor for corrosion state of substation grounding grid according to claim 1, characterized in that: The upper surface of the heat dissipation chassis (2) is provided with a number of heat dissipation grooves (3), which are distributed in a ring on the upper surface of the heat dissipation chassis (2). The heat dissipation grooves (3) are filled with metal foam heat dissipation body.

3. The wireless monitoring sensor for corrosion status of substation grounding grid according to claim 1, characterized in that: The layered shielded chamber (6) is internally provided with a power supply chamber (7), a processing and transmission chamber (8), and a signal acquisition chamber (9). Each chamber inside the layered shielded chamber (6) is isolated by a shielding shell.

4. The wireless monitoring sensor for corrosion status of substation grounding grid according to claim 3, characterized in that: The power supply cavity (7) is located at the bottom of the layered shielding chamber (6), the processing and transmission cavity (8) is located in the middle of the layered shielding chamber (6), the processing and transmission cavity (8) is located above the power supply cavity (7), and the signal acquisition cavity (9) is located inside the layered shielding chamber (6) near the cone.

5. The wireless monitoring sensor for corrosion status of substation grounding grid according to claim 2, characterized in that: The outer shell (4) is disposed outside the layered shielding chamber (6), and the edge of the outer shell (4) is disposed above a plurality of heat dissipation slots (3).

6. The wireless monitoring sensor for corrosion status of substation grounding grid according to claim 1, characterized in that: The outer shell (4) is made of insulating material as a whole, and an insulating cavity is provided inside the outer shell (4), which is filled with heat-insulating material.

7. The wireless monitoring sensor for corrosion status of substation grounding grid according to claim 1, characterized in that: The outer shell (4) has a number of conductive serrations (10) fixedly arranged on the edge of the umbrella cone surface, and the conductive serrations (10) are evenly distributed along the edge of the umbrella surface of the outer shell (4).

Images