Environmentally adaptive field grinding probe
By integrating a temperature detection unit and a self-heating module into the field mill probe, the motor temperature is automatically adjusted. Combined with gyroscope and air pressure measurement, the problem of rotor stoppage caused by low temperature frost in high-altitude areas is solved, improving the applicability and measurement accuracy of the probe.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG TIANCHAUNG XINCE COMM TECH
- Filing Date
- 2025-04-16
- Publication Date
- 2026-07-03
AI Technical Summary
Existing field mill probes lack accuracy in extreme environments, especially in high-altitude areas where rotors stop due to low-temperature frost, affecting measurement accuracy and applicability.
It adopts an environment-adaptive field grinding probe, equipped with a temperature detection unit and a self-heating module. The motor heating is automatically started and stopped according to the temperature detection value. Combined with a gyroscope and an altitude and air pressure measurement module, the probe's working state in extreme environments is optimized to reduce the impact of frost.
It improves the applicability and measurement accuracy of the field grinding probe in various environments, ensures normal operation in high-altitude areas, and reduces the problem of shutdown caused by low temperature frost.
Smart Images
Figure CN224456893U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of field strength detection technology, and in particular to an environmentally adaptive field wear probe. Background Technology
[0002] The field mill probe works by utilizing the principle of generating induced charges on a conductor placed in an electric field. The field mill probe includes a stator, a rotor, and a motor. The rotor rotates under the drive of the motor, forming relative motion with the stator, thereby cutting magnetic field lines and generating induced electromotive force. The electric field strength and direction are measured by the change of charge. It is used for real-time monitoring of the composite field strength under power transmission lines.
[0003] Existing field mill probes have the following shortcomings: due to the large number of factors affecting the induced electromotive force, including rotor speed and attitude, the field mill probes are not accurate enough in relatively extreme environments; for example, when power transmission and transformation facilities in high-altitude areas need to be monitored, the probes below may stop or be hindered from rotating due to low temperature frost outdoors. Therefore, this application proposes a new technical solution. Utility Model Content
[0004] To improve the applicability of the field grinding probe in various environments and enhance measurement accuracy, this application provides an environment-adaptive field grinding probe.
[0005] This application provides an environmentally adaptive field grinding probe, which adopts the following technical solution:
[0006] An environmentally adaptive field grinding probe includes a housing and a rotor, stator, motor and microcomputer main control board mounted on the housing. The microcomputer main control board is also electrically connected to a temperature detection unit and a self-heating module. The temperature detection unit is built into the housing, and the self-heating module is fixed to the housing and arranged around the motor.
[0007] Optionally, the microcomputer main control board is electrically connected to a gyroscope and a communication module.
[0008] Optionally, the microcomputer main control board is electrically connected to an altitude and air pressure measurement module.
[0009] Optionally, the housing includes a main housing and a plurality of side lugs, the plurality of side lugs being distributed around the main housing. Each side lug includes an L-plate and a partition block for contacting the mounting surface. One end of the L-plate is fixed to the outer wall of the main housing, and the other end extends outward from one end of the main housing. The partition block is disposed on the L-plate extending outward and away from the main housing. The partition block has a through hole along its thickness direction. The rotor is located on the outer side of the main housing near the partition block and is rotatably connected to the main housing.
[0010] Optionally, the output end of the motor is provided with a transmission component to link the rotor shaft, and the inner cover of the main housing is provided with a heat-concentrating cover, which covers the heat-generating part of the self-heating module and the inner end of the rotor shaft. The rotor and its shaft are heat-conducting components.
[0011] Optionally, the rotor includes a center plate, a plurality of blades surrounding the center plate, and a rotating shaft coaxial with the center plate. An insulating and non-magnetic guide plate is fixed to the side of the blade facing the main housing. One end of the guide plate is close to the rotating shaft, and the other end extends outward toward the rotor and gradually approaches another blade in the subsequent rotation sequence to form an arc structure.
[0012] Optionally, the end of the separator block near the L-plate is an outwardly protruding arc structure and is rotatably connected to the L-plate around the center of the arc structure, and the outwardly extending section of the L-plate is provided with a through hole.
[0013] Optionally, a pneumatic telescopic structure is fixed to the side of the blade facing the main housing. The movable part of the telescopic structure faces the side of the blade away from the middle plate. The outward extension of the L plate is divided into plate A and plate B in a manner perpendicular to the thickness. Plate A is fixed to the main housing, plate B rests on plate A, and a lifting rod is inserted into the lower part of plate B. The section of the lifting rod away from plate B is a threaded section. The threaded section of the lifting rod is threadedly connected to a nut block, and the end is fixed to plate A. A gear set is provided on plate A. The gear set includes a driven gear sleeved on the nut block and a driving gear meshing with the driven gear. The driving gear is rotatably connected to plate A and extends into the moving path of the movable part of the telescopic structure.
[0014] In summary, this application includes the following beneficial technical effects: When this application is applied in high-altitude areas, staff can set the microcomputer main control board according to the historical temperature of the product application location, so that when the temperature detection value fed back by the temperature detection unit meets the standard, it will automatically start and stop the self-heating module to heat the motor, effectively reducing the adverse effects of motor frost and freezing, which can improve the applicability of the field grinding probe in various environments and improve the measurement accuracy. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of this application;
[0016] Figure 2 This is a partial structural diagram of the thermostatic hood of this application after it has been cut open;
[0017] Figure 3 This is the front view of this application;
[0018] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the side ear seat according to another embodiment of this application.
[0019] Explanation of reference numerals in the attached drawings: 1. Outer shell; 11. Main shell; 12. Side ear seat; 121. L-plate; 122. Separator block; 2. Rotor; 21. Middle plate; 22. Blade plate; 23. Shaft; 24. Guide plate; 3. Stator; 4. Self-heating module; 5. Transmission assembly; 6. Temperature-concentrating cover; 71. Vertical plate; 72. Horizontal shaft; 8. Telescopic structure; 91. Lifting rod; 92. Nut block; 93. Driven gear; 94. Driving gear. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0021] This application discloses an environmentally adaptive field grinding probe.
[0022] Reference Figure 1 The environmentally adaptive field grinding probe includes a housing 1 and a rotor 2, a stator 3, a motor, and a microcomputer main control board mounted on the housing 1. The housing 1 includes a cylindrical main shell 11, which is hollow and open at least one end, covered with a suitable end cap to allow opening of the internal cavity for installation of various components. The motor and the microcomputer main control board are both built into the main shell 11. The microcomputer main control board is a circuit board integrating a main control chip and peripheral circuits, which is prior art and will not be described further. The microcomputer main control board and other electrical components of this application are interconnected by electrical signals to ensure the normal operation of the probe.
[0023] The rotor 2 body is located outside one end of the main housing 11, and its shaft 23 is coaxial with the main housing 11 and rotatably connected. The stator 3 is fixed to the side of the main housing 11 facing the rotor 2 and is directly opposite the rotor 2.
[0024] In this embodiment, the microcomputer main control board is also electrically connected to a temperature detection unit and a self-heating module 4. The temperature detection unit can be a temperature sensor or a temperature and humidity sensor. It should be noted that its temperature measuring part should at least be built into the main housing 11, and preferably close to the motor. This is because the purpose of this application is to obtain the motor temperature, not the outside air temperature, and there is a certain difference between the two, especially when the device is working. More importantly, in another embodiment of this application, this point is required. If it is outside, it will cause the product to malfunction, which will be explained later.
[0025] The self-heating module 4 is located and fixed in the main housing 11. In this embodiment, the self-heating module 4 is:
[0026] The first type includes multiple electric heating elements distributed around the motor;
[0027] The second type includes a heat-conducting ring and an electric heating element. The heat-conducting ring surrounds and contacts the motor, and the electric heating element is inserted into the heat-conducting ring. Figure 2 As shown.
[0028] Based on the above settings, when this application is used in high-altitude areas, staff can configure the microcomputer main control board according to the historical temperature of the product application location, so that when the temperature detection value fed back by the temperature detection unit meets the standard, it will automatically start and stop the self-heating module 4 to heat the motor, effectively reducing the adverse effects of motor frost and freezing, which can improve the applicability of the field grinding probe in various environments and improve the measurement accuracy.
[0029] Example: When the temperature is ≤0°, the self-heating module 4 is turned on; when the temperature is ≥5°, the self-heating module 4 is turned off.
[0030] In another embodiment of this application, the microcomputer main control board is electrically connected to a gyroscope and a communication module. The gyroscope can be integrated and installed in the center of the microcomputer main control board to detect the tilt angle of the probe. The communication module can be a Cat.1 communication module for communication via a 4G network.
[0031] Based on the above settings, this application:
[0032] 1. Staff can pre-configure the microcomputer main control board so that when the gyroscope's detected value (i.e., the tilt angle meets the standard) is reached, it sends data to a pre-selected backend or terminal via the communication module. For example, when the tilt angle is >5°, an alarm signal is sent, and data acquisition is paused. This setting can reduce data deviation caused by probe tilting and vibration.
[0033] 2. Due to the presence of the communication module, this application can support remote start / stop of the self-heating module 4, query of equipment status, and download of data by the host computer, which facilitates deployment in remote areas.
[0034] In another embodiment of this application, the microcomputer main control board is also electrically connected to an altitude and barometric pressure measurement module. The altitude and barometric pressure measurement module includes an integrated barometer and an altitude calculation chip, both of which are built into the main housing 11 and the detection part of the barometer can extend out to contact the atmosphere.
[0035] Based on the above settings, this application can reduce interference caused by the increased charge and uneven charge distribution caused by the thin atmosphere at high altitudes after writing appropriate program logic to the microcomputer main control board and correcting the impact of real-time air pressure on the measured values.
[0036] Reference Figure 1In another embodiment of this application, the outer casing 1 further includes a plurality of side lugs 12. For example, two side lugs 12 are symmetrically distributed on both sides of the main casing 11. Each side lug 12 includes an L-plate 121 and a partition block 122. One end of the L-plate 121 is fixed to the outer wall of the main casing 11 by screws, and the other end extends outward from the end of the main casing 11 where the rotor 2 is mounted. The partition block 122 is disposed on the outwardly extending part of the L-plate 121 and away from the main casing 11. The partition block 122 has through holes along its thickness direction.
[0037] Based on the above configuration, after installation, the rotor 2 faces inward rather than outward. Considering that this application is generally installed on the lower surface of structures such as buildings and frames, the rotor 2 is positioned on top and facing inward. This reduces the risk of damage in outdoor environments, since it is not advisable to place the rotor 2 directly inside the casing. Furthermore, because hot air rises, the above-mentioned self-heating module 4 can be used to heat up the rotor 2, reducing the chance of frost formation.
[0038] Reference Figure 2 Furthermore, the output end of the motor is provided with a transmission component 5 that connects to the rotating shaft 23 of the rotor 2. The main housing 11 is covered with a heat-concentrating cover 6, which covers the heat-generating part of the self-heating module 4 and the inner end of the rotating shaft 23 of the rotor 2. The rotor 2 and its rotating shaft 23 are heat-conducting components.
[0039] The transmission component 5 can be a gear, synchronous belt, or belt structure. Taking a gear as an example: a small gear is fixed to the output shaft of the motor, and a large gear is fixed to the rotating shaft 23; the small gear and the large gear mesh.
[0040] According to the above settings, after the self-heating module 4 is turned on, the heat it dissipates is enclosed by the heat-concentrating cover 6 and relatively concentrated at the top, and continues to be transferred upward through the rotating shaft 23 of the contacting rotor 2, so as to defrost the rotor 2.
[0041] It is understood that the above-mentioned motor can be a DC motor, and the motor and stator 3 are insulated from each other. In application, the motor, or the motor output shaft, rotor, and housing are at the same potential. For example, the motor is grounded through a grounding wire to maintain a stable potential and ensure that it will not interfere with the test results.
[0042] Reference Figure 1 and Figure 3 In another embodiment of this application, the rotor 2 includes a middle plate 21, a plurality of blades 22 surrounding the middle plate 21, and a rotating shaft 23 coaxial with the middle plate 21. The side of the blades 22 facing the main housing 11 is fixed with an insulating and non-magnetic guide plate 24, such as a thin wooden board. One end of the guide plate 24 is close to the rotating shaft 23, and the other end extends outward toward the rotor 2 and gradually approaches another blade 22 that rotates later to form an arc structure.
[0043] Because in the above embodiment, the rotor 2 of this application faces inward rather than downward and outward, and the probe is used outdoors, dirt may enter between the rotor 2 and the stator 3 and interfere with the detection results; however, with the above-mentioned guide plate 24, the dirt that accidentally enters can be pushed out by the rotation of the rotor 2, reducing the impact.
[0044] It should be noted that if the stator 3 is a protruding structure, the guide plate 24 should have a guide opening for the stator 3 to pass through, so as to avoid interference between the two.
[0045] The stator 3 comprises multiple sub-units, which are distributed around the shaft of the rotor 2.
[0046] Reference Figure 3 In another embodiment of this application, the end of the separator 122 near the L-plate 121 is an outwardly protruding arc structure and is rotatably connected to the L-plate 121 about the center of the arc structure. Example:
[0047] A vertical plate 71 is fixed on the outward extension of the L-plate 121. The vertical plate 71 is located on the side of the partition block 122. A horizontal shaft 72 is fixed at the end of the partition block 122. The horizontal shaft 72 is rotatably connected to the vertical plate 71.
[0048] The L-plate 121 has through holes in its outward extension section.
[0049] According to the above settings, if the mounting surface is not flat enough, the staff can rotate the partition block 122 to adjust the contact posture, and then fix it with the screws passing through the L plate 121.
[0050] Reference Figure 4 In another embodiment of this application, a telescopic structure 8 is fixed on the side of the blade 22 facing the main housing 11. The telescopic structure 8 can be a pneumatic telescopic structure, for example, a syringe structure. It should be noted that its cylinder should be heat-conducting rather than heat-insulating, and the piston rod end should be fixed with at least one tooth or incomplete tooth structure as a movable part facing outward. The movable part faces the side of the blade 22 away from the middle plate 21.
[0051] The outward extension of plate L121 is divided into plate A and plate B in a manner perpendicular to the thickness. Plate A is fixed to the main housing 11, plate B rests on plate A, and a lifting rod 91 is inserted into the lower part of plate B. The lifting rod 91 and the section away from plate B are threaded sections. The threaded section of the lifting rod 91 is threadedly connected to nut block 92, and the end is fixed to plate A. A gear set is provided on plate A. The gear set includes a driven gear 93 sleeved on nut block 92 and a driving gear 94 meshing with the driven gear 93. The driven gear 93 can slide up and down relative to nut block 92 and is rotatably connected to plate A. The driving gear 94 is rotatably connected to plate A and extends into the moving path of the movable part of telescopic structure 8.
[0052] According to the above settings, when the staff finds that the probe's ambient temperature will not frost when they remotely check the data, but the motor is obstructed to a certain extent, they can force the rotor 2 to heat up, causing the gas in the telescopic structure 8 to expand and lengthen, so that the moving part can move the drive gear 94. The drive gear 94 rotates, driving the driven gear 93, i.e., the nut block 92, to rotate. After the nut block 92 rotates, it moves towards plate A, causing plate B to drop slightly, i.e., increasing the distance between the rotor 2 and the mounting surface, so that the rotor 2 can more easily carry out any dirt that may be stuck in the middle.
[0053] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An environment adaptive field grinding probe, comprising a shell (1) and a rotor (2), a stator (3), a motor and a microcomputer main control board installed on the shell (1), characterized in that: The microcomputer main control board is also electrically connected to a temperature detection unit and a self-heating module (4). The temperature detection unit is built into the outer shell (1), and the self-heating module (4) is fixed to the outer shell (1) and arranged around the motor.
2. The environment adaptive field grind probe of claim 1, wherein: The microcomputer main control board is electrically connected to a gyroscope and a communication module.
3. The environment adaptive field grind probe of claim 1, wherein: The microcomputer main control board is electrically connected to an altitude and air pressure measurement module.
4. The environment adaptive field grind probe of claim 1, wherein: The outer casing (1) includes a main casing (11) and a plurality of side lugs (12). The plurality of side lugs (12) are distributed around the main casing (11). Each side lug (12) includes an L-plate (121) and a partition block (122) for contacting the mounting surface. One end of the L-plate (121) is fixed to the outer wall of the main casing (11), and the other end extends outward from one end of the main casing (11). The partition block (122) is disposed on the L-plate (121) extending outward and away from the main casing (11). The partition block (122) has through holes along the thickness direction. The rotor (2) is located on the outer side of the main casing (11) near the partition block (122) and is rotatably connected to the main casing (11).
5. The environment adaptive field polishing probe of claim 4, wherein: The output end of the motor is provided with a transmission component (5) to link the rotor (2) shaft (23). The main housing (11) is covered with a heat-concentrating cover (6). The heat-concentrating cover (6) covers the heat-generating part of the self-heating module (4) and the inner end of the rotor (2) shaft (23). The rotor (2) and its shaft (23) are heat-conducting components.
6. The environment adaptive field polishing probe of claim 5, wherein: The rotor (2) includes a middle plate (21), a plurality of blades (22) surrounding the middle plate (21), and a rotating shaft (23) coaxial with the middle plate (21). The blades (22) facing the main housing (11) are fixed with an insulating and non-magnetic guide plate (24). One end of the guide plate (24) is close to the rotating shaft (23), and the other end extends outward toward the rotor (2) and gradually approaches another blade (22) that rotates later to form an arc structure.
7. The environment adaptive field polishing probe of claim 6, wherein: The dividing block (122) has an outwardly protruding arc structure at one end near the L plate (121) and is rotatably connected to the L plate (121) around the center of the arc structure. The L plate (121) has through holes in its outwardly extending section.
8. The environment adaptive field grind probe of claim 7, wherein: A pneumatic telescopic structure (8) is fixed to the side of the blade (22) facing the main housing (11). The movable part of the telescopic structure (8) faces the side of the blade (22) away from the middle plate (21). The outward extension of the L plate (121) is divided into plate A and plate B in a way perpendicular to the thickness. Plate A is fixed to the main housing (11), plate B rests on plate A, and a lifting rod (91) is inserted into the lower part of plate B. The section of the lifting rod (91) away from plate B is a threaded section. The threaded section of the lifting rod (91) is threadedly connected to the nut block (92), and the end is fixed to plate A. A gear set is provided on plate A. The gear set includes a driven gear (93) sleeved on the nut block (92) and a driving gear (94) meshing with the driven gear (93). The driving gear (94) is rotatably connected to plate A and extends into the moving path of the movable part of the telescopic structure (8).