Constant temperature system of high-voltage switch rotation sensor

Abstract

The invention provides a constant temperature system of a high-voltage switch rotation sensor, which comprises a mounting plate, a rotation sensor arranged above the mounting plate and an operating mechanism arranged below the mounting plate, and is characterized in that the rotation sensor is connected with a rotation main shaft in the operating mechanism through a transmission assembly and is driven by the rotation main shaft to rotate; according to the invention, the coupling head is connected with the external rotating shaft to drive the rotation sensor to act, and when in a low-temperature environment, the constant-temperature mechanism can keep the rotation sensor at a constant temperature through the cooperation of the heating assembly and the cooling assembly, so that the failure caused by high and low temperatures is avoided, and the working reliability and accuracy of the rotation sensor are ensured; therefore, the stability and the reliability of the whole high-voltage switch system are improved; by preventing the influence of extreme temperature on the rotary sensor and the operating mechanism, the abrasion of equipment is reduced, the service life of the equipment is prolonged, the rotary sensor and the operating mechanism can still work normally under severe environment conditions, and the reliability and the stability of the operation of the equipment are improved.

Description

Technical Field

[0001] The invention relates to the field of electric power technology, and in particular to a constant temperature system of a high-voltage switch rotation sensor. Background Art

[0002] High-voltage switchgear is an important component of the power grid, which is used to control high-voltage circuits, including circuit breakers and fast earthing switches. Rotary sensors play a key monitoring role in these switchgear, used to detect the mechanical action characteristics and health status of the switches. In high-voltage power transmission and transformation systems, the normal operation of circuit breakers and fast earthing switches is crucial because they can disconnect or connect circuits, thereby ensuring the safe and stable operation of the power grid.

[0003] Rotary sensors can provide key operating status information by monitoring the mechanical action of switches, such as switch position, action speed and force. By monitoring the action of circuit breakers and fast earthing switches, rotary sensors can help operators understand the operating status of equipment in a timely manner, detect potential faults or anomalies in a timely manner, and take necessary maintenance and repair measures to ensure the safe and reliable operation of the power grid.

[0004] However, in high-temperature environments, the performance of the rotation sensors of high-voltage switching elements is prone to degradation, resulting in reduced accuracy and prolonged response time. At the same time, increased material aging may cause component failure. In low-temperature environments, the rotation sensors of high-voltage switching elements may also experience data anomalies and failure. At the same time, long-term exposure to low temperatures may cause aging, deformation or damage to equipment components, thereby shortening the service life of the equipment. It may also cause the insulation performance of the sensor to degrade, increasing the risk of safety problems such as leakage or breakdown of the equipment. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a constant temperature system for a high-voltage switch rotation sensor, which solves the technical problems mentioned in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A constant temperature system for a high-voltage switch rotary sensor comprises a mounting plate, a rotary sensor mounted above the mounting plate, and an operating mechanism mounted below the mounting plate, wherein the rotary sensor is connected to a rotary main shaft inside the operating mechanism through a transmission assembly and is driven to rotate thereby, and further comprises a constant temperature mechanism arranged above the mounting plate and capable of keeping the rotary sensor at a constant temperature to avoid failure due to high or low temperatures, wherein the constant temperature mechanism comprises a heat preservation cover, a heating assembly arranged in the heat preservation cover, a cooling assembly, and a temperature sensor 1; the cooling assembly is arranged opposite to the rotary sensor, and the temperature sensor 1 monitors the temperature inside the heat preservation cover in real time, and transmits the temperature data collected from the rotary sensor to a power grid cloud platform through a signal sending device, and the power grid cloud platform sends an instruction to the control system to start the heating assembly or the cooling assembly according to the received low or high temperature signal, so as to keep the temperature inside the heat preservation cover constant and prevent the rotary sensor from failing at low or high temperatures.

[0008] Preferably, the constant temperature mechanism also includes an insulation pad, which is arranged on the upper surface of the mounting plate, the temperature sensor is installed above the insulation pad, and the insulation cover is arranged above the insulation pad. The bottom of the insulation cover is sealed with the insulation pad and fixed by screws.

[0009] Preferably, an adjusting screw is provided in the heat preservation cover, the bottom of the adjusting screw is fixed on the mounting plate by a nut, a base plate is provided on the top, a support plate is fixed on one side of the upper end of the base plate by screws, and the heating component is arranged on the side wall of the support plate.

[0010] Preferably, the cooling assembly is fixedly connected to the inner side of the heat preservation cover by means of a buckle and faces the rotation sensor.

[0011] Preferably, a top plate is provided on the other side of the upper end of the bottom plate, the rotation sensor is installed between the top plate and the bottom plate, and the bottom of the rotation sensor is connected to the transmission assembly.

[0012] Preferably, the transmission assembly includes a connecting head, a support sleeve, and an oil seal. The top of the connecting head is connected to the rotation sensor, and its lower end passes through the insulation pad and the mounting plate and is located on the outside of the mounting plate. The connecting head is covered with a support sleeve, which is mounted on the mounting plate by screws. The upper end of the mounting plate is located on the peripheral side of the connecting head and has a groove, in which an oil seal is arranged, and the upper end of the oil seal is against the support sleeve.

[0013] Preferably, a ventilation structure is provided in the middle of the upper end of the insulation cover, and a wire outlet structure is provided on the left and right sides of the ventilation structure. The wire outlet structure includes a wire outlet cover plate, and a sealing O-ring for being mounted on the internal power line and data line is also provided on the inner side of the wire outlet cover plate.

[0014] Preferably, the internal power line and data line include a heating component power line, a cooling component power line / signal line and a temperature sensor data line arranged in one of the output line structures, and a rotation sensor data line arranged in another output line structure, the other end of the heating component power line is connected to the heater, the other end of the cooling component power line / signal line is connected to the cooling component, the other end of the temperature sensor data line is connected to temperature sensor 1, and the other end of the rotation sensor data line is connected to the rotation sensor.

[0015] Preferably, the ventilation structure comprises a pressing plate and a breathing pad, wherein the pressing plate is arranged on the upper side of the breathing pad, and the pressing plate is mounted on the heat-insulating cover by screws.

[0016] Preferably, a heater is provided inside the operating mechanism to realize internal heating drive and avoid low-temperature jamming of the operating mechanism.

[0017] The operating principle of this system is as follows: the rotary sensor is connected to the rotating main shaft inside the operating mechanism through a connecting head. When the operating mechanism is in operation, the rotary sensor is driven to rotate synchronously to realize motion transmission and measurement. The system's built-in temperature sensor monitors the temperature inside the thermal insulation cover in real time. The operating mechanism and the rotary sensor transmit the temperature data to the power grid cloud platform through a signal sending device. The power grid cloud platform sends instructions based on the received signal to start the heater assembly or the cooling assembly to maintain a constant temperature in the thermal insulation cover to prevent the rotary sensor from failing at extreme temperatures. At the same time, in a low temperature environment, the heater inside the operating mechanism is also started to heat the internal environment of the operating mechanism to prevent jamming.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In the present invention, the connector is connected to the external rotating shaft to drive the rotating sensor to move. When in a low temperature environment, the constant temperature mechanism can keep the rotating sensor at a constant temperature through the cooperation of the heating component and the cooling component, thereby avoiding failure caused by high and low temperatures, ensuring its working reliability and accuracy, and thus improving the stability and reliability of the entire high-voltage switch system;

[0020] 2. The present invention reduces equipment wear and prolongs equipment service life by preventing the influence of extreme temperature on the rotary sensor and the operating mechanism, ensures that the rotary sensor and the operating mechanism can still work normally under harsh environmental conditions, and improves the reliability and stability of equipment operation;

[0021] 3. The heating component in the present invention is built into the operating mechanism, and the internal heating drive is realized through the temperature sensor, which can effectively avoid the jamming phenomenon of the operating mechanism in a low temperature environment and ensure the normal operation of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a front cross-sectional view of a constant temperature system of a high-voltage switch rotation sensor provided in Example 1 of the present application;

[0023] Figure 2 It is a side cross-sectional view of a constant temperature system of a high-voltage switch rotation sensor provided in Example 1 of the present application;

[0024] Figure 3 The invention is a thermostatic system of a high-voltage switch rotation sensor provided in Example 1 of the present application. Figure 2 The enlarged view of point A in the middle;

[0025] Figure 4 is a signal control flow chart provided in Example 1 of the present application;

[0026] Figure 5 It is a structural schematic diagram of a temperature measuring component in a constant temperature system of a high-voltage switch rotation sensor provided in Example 2 of the present application;

[0027] Figure 6 It is a top view of a temperature measuring component in a constant temperature system of a high-voltage switch rotation sensor provided in Example 2 of the present application;

[0028] Figure 7 This is a disassembled diagram of a temperature measuring component in a constant temperature system of a high-voltage switch rotation sensor provided in Example 2 of the present application.

[0029] In the figure: 1. mounting plate; 2. insulation pad; 3. insulation cover; 4. adjusting screw; 5. bottom plate; 6. support plate; 7. heating assembly; 8. top plate; 9. rotary sensor; 10. connecting head; 11. support sleeve; 12. groove; 13. oil seal; 14. heating assembly power line; 15. rotary sensor data line; 16. outlet structure; 161. outlet cover plate; 162. O-ring; 17. ventilation structure; 171. pressure plate; 172. breathing pad; 18. temperature measuring assembly; 181. mounting seat; 182. adhesive layer; 183. fixing seat; 184. temperature sensor 2; 19. cooling assembly; 191. cooling assembly power line / signal line; 20. temperature sensor 1; 201. temperature sensor data line; 21. heater; 22. operating mechanism. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0031] Embodiment 1:

[0032] See also Figure 1 to Figure 4 In this embodiment, a constant temperature system for a high-voltage switch rotation sensor is provided, including a mounting plate 1, a rotation sensor 9 mounted above the mounting plate 1, a heater 21, and an operating mechanism 22 mounted below the mounting plate 1. The rotation sensor 9 is connected to a rotating main shaft inside the operating mechanism 22 through a transmission assembly and driven to rotate by the operating mechanism 22 to achieve motion transmission and measurement. The system also includes a constant temperature mechanism disposed above the mounting plate 1 that can keep the rotation sensor 9 at a constant temperature to avoid failure due to high or low temperatures. The rotation sensor 9 is mounted inside the constant temperature mechanism, and the constant temperature mechanism covers and seals the rotation sensor 9 to ensure that the measurement The data is accurate; the constant temperature mechanism includes a heat preservation cover 3, a heating component 7 arranged in the heat preservation cover 3, a cooling component 19 and a temperature sensor 20; the cooling component 19 is arranged opposite to the rotation sensor 9, and the temperature sensor 20 monitors the temperature inside the heat preservation cover 3 in real time, and transmits the temperature data collected by the rotation sensor 9 to the power grid cloud platform through a signal sending device. The power grid cloud platform sends an instruction to the control system to start the heating component 7 or the cooling component 19 according to the received low temperature or high temperature signal, so as to maintain a constant temperature in the heat preservation cover 3 and prevent the rotation sensor 9 from failing at low or high temperature.

[0033] At the same time, one end of the transmission assembly is located in the constant temperature mechanism and connected to the rotation sensor 9, and the other end thereof penetrates the constant temperature mechanism and the mounting plate 1 and is placed outside thereof, and is used to connect the rotating shaft on the outside, so that when the rotating shaft on the outside rotates, it can drive the transmission assembly to rotate, and the transmission assembly then drives the rotation sensor 9 to rotate together. When used in a high temperature environment, the constant temperature mechanism cools down the inside thereof to prevent the rotation sensor 9 from failing at a high temperature, and when used in a low temperature environment, the constant temperature mechanism heats the inside thereof to prevent the rotation sensor 9 from failing at a low temperature.

[0034] The lower end of the mounting plate 1 is connected to an operating mechanism 22, and a heating component 21 is provided inside the operating mechanism 22 and transmits a signal through a temperature sensor 20 to realize internal heating drive and avoid the operating mechanism 22 from being stuck at low temperature; by maintaining a suitable temperature of the operating mechanism, the system can ensure the normal operation of the operating mechanism, thereby ensuring the stability and reliability of the equipment. The operating mechanism is responsible for controlling the switch operation in the low temperature protection system of the high-voltage switch, and maintains a suitable temperature through the internal heating component to ensure the normal operation of the high-voltage switch in a low temperature environment. The operating mechanism 22 is a key component in the high-voltage switchgear. It controls the opening and closing action of the circuit breaker by mechanical or electrical means to ensure the on and off of the circuit. It contains an energy storage and release device, can respond quickly in an emergency, and maintain high reliability under different environmental conditions. It works in coordination with the control system through signal transmission and feedback mechanisms to ensure the stable operation and safe operation of the power system.

[0035] One end of the transmission assembly is located in the constant temperature mechanism and connected to the rotation sensor 9, and the other end thereof penetrates the constant temperature mechanism and the mounting plate 1 and is connected to the rotating main shaft inside the operating mechanism 2 to realize transmission control of the operating mechanism.

[0036] Specifically, the constant temperature mechanism also includes a heat preservation pad 2, the heat preservation pad 2 is arranged on the upper surface of the mounting plate 1, the temperature sensor 20 is installed above the heat preservation pad 2, the heat preservation cover 3 is arranged above the heat preservation pad 2, and the bottom of the heat preservation cover 3 is sealed with the heat preservation pad 2 and fixed by screws;

[0037] The cooling assembly 19 is fixedly connected to the inner side of the heat preservation cover 3 by a buckle and faces the rotation sensor 9, aiming to maintain the suitable working temperature of the rotation sensor, prevent it from overheating in a high temperature environment, and effectively control its temperature.

[0038] The bottom of the adjusting screw 4 is fixed on the mounting plate 1 by a nut, and a bottom plate 5 is provided on the top thereof. A support plate 6 is fixed on one side of the upper end of the bottom plate 5 by screws. A heater 7 is provided on the side wall of the support plate 6. The heater 7 generates heat after being powered on, thereby increasing the temperature in the heat preservation cover 3. In addition to the heat preservation environment, the rotation sensor 9 can be in a suitable working environment.

[0039] A top plate 8 is provided on the other side of the upper end of the bottom plate 5, and a rotation sensor 9 is installed between the top plate 8 and the bottom plate 5. The bottom of the rotation sensor 9 is connected to the transmission component. The insulation pad 2, the insulation cover 3, the adjusting screw 4, the bottom plate 5, the top plate 8, the heater, etc. are all fixedly connected to form a whole, and then when the transmission component is driven to rotate by the rotating shaft, the whole device can rotate together;

[0040] The transmission assembly includes a coupling head 10, a support sleeve 11, and an oil seal 13. The top of the coupling head 10 is connected to the rotation sensor 9, and the lower end thereof passes through the heat-insulating pad 2 and the mounting plate 1 and is located on the outer side of the mounting plate 1. The coupling head 10 is sleeved with a support sleeve 11, which realizes fixed limit of the coupling head 10. The support sleeve 11 is mounted on the mounting plate 1 by screws. Moreover, a groove 12 is formed at the upper end of the mounting plate 1 on the peripheral side of the coupling head 10. An oil seal 13 is arranged in the groove 12. The upper end of the oil seal 13 abuts against the support sleeve 11, so that the support sleeve 11 can maintain the oil seal 13 with good sealing effect and stability.

[0041] A ventilation structure 17 is provided in the middle of the upper end of the heat preservation cover 3, and an outlet structure 16 is provided on both sides of the left and right sides of the ventilation structure 17. The outlet structure 16 and the ventilation structure 17 are in the same straight line. The outlet structure 16 includes an outlet cover plate 161. The inner side of the outlet cover plate 161 is also provided with a sealing O-ring 162 for sleeved on the internal power line and data line. The O-ring 162 can increase the sealing performance; the internal power line and data line include a heating component power line 14, a cooling component power line / signal line 191 and a temperature sensor data line 201 arranged in one of the outlet structures 16, and a cooling component power line / signal line 191 and a temperature sensor data line 201 arranged in another outlet structure 16. The rotation sensor data line 15, the other end of the heating component power line 14 is connected to the heating component 7, the other end of the cooling component power line / signal line 191 is connected to the cooling component 19, the other end of the temperature sensor data line 201 is connected to the temperature sensor 20, the other end of the rotation sensor data line 15 is connected to the rotation sensor 9, and the other end of the temperature sensor data line 201 is connected to the temperature sensor 20, which enables the system to monitor the data of the rotation sensor and the temperature sensor in real time and communicate with the control unit through the data line, thereby ensuring the stable operation and temperature control of the system;

[0042] Among them, the ventilation structure 17 includes a pressure plate 171 and a breathing pad 172. The pressure plate 171 is arranged on the upper side of the breathing pad 172, and the pressure plate 171 is installed on the heat preservation cover 3 by screws, which fixes the breathing pad 172. The breathing pad 172 can realize ventilation between the inside of the heat preservation cover 3 and the outside world to avoid excessive internal air pressure.

[0043] In the present invention, the connecting head 10 is connected to the external rotating shaft to drive the rotating sensor 9 to move. When in a low temperature environment, the heater 7 is started and heats the internal environment of the heat preservation cover 3, so that the rotating sensor 9 has a suitable temperature environment, so that it can still realize the sensor measurement and data analysis functions at low temperatures, and prevent the rotating sensor 9 from failing due to low temperatures. The structure is novel and simple, the performance is stable and reliable, and it meets the use requirements.

[0044] Embodiment 2

[0045] In this embodiment, see Figure 5 to Figure 7 , which is different from the embodiment 1 in that: a temperature measuring component 18 is further provided on the inner wall of the heat preservation cover 3, and the temperature measuring component 18 can monitor the temperature inside the heat preservation cover 3 in real time, and then feed it back to the user, and determine whether to continue heating or stop heating according to the temperature, so that the rotation sensor 9 is always within the applicable temperature range, avoiding low or high temperature affecting the data;

[0046] The temperature measuring component 18 includes a mounting base 181, one side of the mounting base 181 is bonded and fixed to the inner wall of the heat preservation cover 3 by an adhesive layer 182, and the other side of the mounting base 181 is threadedly installed with a fixing base 183, and a temperature sensor 184 is arranged on the fixing base 183. The temperature sensor 184 can monitor the temperature inside the heat preservation cover 3, and the fixing base 183 can be separated from the mounting base 181, which is convenient for replacing or repairing the temperature sensor 184.

[0047] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention are implemented according to the conventional means in the field unless otherwise specified and limited.

Claims

1. A constant temperature system for a high-voltage switch rotary sensor, comprising a mounting plate (1), a rotary sensor (9) mounted above the mounting plate (1), and an operating mechanism (22) mounted below the mounting plate (1), wherein the rotary sensor (9) is connected to a rotary main shaft inside the operating mechanism (22) through a transmission assembly and is driven to rotate to achieve motion transmission and measurement, and is characterized in that: The invention also comprises a constant temperature mechanism arranged above the mounting plate (1) and capable of maintaining a constant temperature of the rotation sensor (9) to avoid failure due to high or low temperature. The constant temperature mechanism comprises a heat preservation cover (3), a heating component (7) arranged in the heat preservation cover (3), a cooling component (19) and a temperature sensor (20); the cooling component (19) is arranged opposite to the rotation sensor (9); the temperature sensor (20) monitors the temperature inside the heat preservation cover (3) in real time, and transmits the temperature data collected from the rotation sensor (9) to the power grid cloud platform through a signal sending device. The power grid cloud platform sends an instruction based on the received low or high temperature signal to control the system to start the heating component (7) or the cooling component (19) to keep the temperature inside the heat preservation cover (3) constant, thereby preventing the rotation sensor (9) from failing at low or high temperature.

2. A constant temperature system for a high voltage switch rotation sensor according to claim 1, characterized in that: The constant temperature mechanism also includes a heat-insulating pad (2), the heat-insulating pad (2) is arranged on the upper surface of the mounting plate (1), the temperature sensor (20) is installed above the heat-insulating pad (2), the heat-insulating cover (3) is arranged above the heat-insulating pad (2), and the bottom of the heat-insulating cover (3) is sealed with the heat-insulating pad (2) and fixed by screws.

3. A constant temperature system for a high voltage switch rotation sensor according to claim 2, characterized in that: The heat-insulating cover (3) is provided with an adjusting screw (4), the bottom of which is fixed on the mounting plate (1) by a nut, and the top of which is provided with a bottom plate (5), and a support plate (6) is fixed on one side of the upper end of the bottom plate (5) by screws, and the heating component (7) is arranged on the side wall of the support plate (6).

4. A constant temperature system for a high voltage switch rotation sensor according to claim 2, characterized in that: The cooling assembly (19) is fixedly connected to the inner side of the heat-insulating cover (3) via a buckle and faces the rotation sensor (9).

5. The constant temperature system of a high voltage switch rotation sensor according to claim 3, characterized in that: A top plate (8) is arranged on the other side of the upper end of the bottom plate (5), a rotation sensor (9) is arranged between the top plate (8) and the bottom plate (5), and the bottom of the rotation sensor (9) is connected to the transmission assembly.

6. A constant temperature system for a high voltage switch rotation sensor according to claim 5, characterized in that: The transmission assembly comprises a coupling head (10), a support sleeve (11), and an oil seal (13); the top of the coupling head (10) is connected to the rotation sensor (9); the lower end thereof passes through the heat-insulating pad (2) and the mounting plate (1) and is located outside the mounting plate (1); the coupling head (10) is sleeved with a support sleeve (11); the support sleeve (11) is mounted on the mounting plate (1) by means of screws; the upper end of the mounting plate (1) is located on the peripheral side of the coupling head (10) and also has a groove (12); an oil seal (13) is arranged in the groove (12); the upper end of the oil seal (13) abuts against the support sleeve (11).

7. The constant temperature system of a high voltage switch rotation sensor according to claim 1, characterized in that: A ventilation structure (17) is provided in the middle of the upper end of the heat-insulating cover (3), and outlet structures (16) are provided on both the left and right sides of the ventilation structure (17), wherein the outlet structure (16) comprises an outlet cover plate (161), and a sealing O-ring (162) for sleeved on the internal power line and data line is further provided on the inner side of the outlet cover plate (161).

8. The constant temperature system of a high voltage switch rotation sensor according to claim 7, characterized in that: The internal power line and data line include a heating component power line (14), a cooling component power line / signal line (191) and a temperature sensor data line (201) arranged in one of the outlet structures (16), and a rotation sensor data line (15) arranged in another outlet structure (16); the other end of the heating component power line (14) is connected to the heating component (7), the other end of the cooling component power line / signal line (191) is connected to the cooling component (19), the other end of the temperature sensor data line (201) is connected to the temperature sensor 1 (20), and the other end of the rotation sensor data line (15) is connected to the rotation sensor (9).

9. The constant temperature system of a high voltage switch rotation sensor according to claim 7, characterized in that: The ventilation structure (17) comprises a pressing plate (171) and a breathing pad (172), wherein the pressing plate (171) is arranged on the upper side of the breathing pad (172), and the pressing plate (171) is mounted on the heat preservation cover (3) by means of screws.

10. The constant temperature system of a high voltage switch rotation sensor according to claim 1, characterized in that: A heater (21) is provided inside the operating mechanism (22) for achieving internal heating drive and preventing the operating mechanism (22) from getting stuck due to low temperature.

Images