Monitoring device and method for monitoring temperature of electric meter box

Abstract

The invention relates to the technical field of electric meter box temperature monitoring, and discloses a monitoring device and method for monitoring the temperature of an electric meter box, and the device comprises a housing, an incoming line wiring terminal, a connector, a temperature collector, a data processor, a communication module, and a conductive sheet. The inlet wire binding post is arranged on the outer wall of the shell and is electrically connected with an inlet wire of the electric meter box through a connector; the conducting strip is installed inside the shell, one end of the conducting strip is electrically connected with the incoming line wiring terminal, and the other end of the conducting strip extends out of the shell and is electrically connected with a disconnecting link of the electric meter box; the temperature collector, the data processor and the communication module are all installed in the shell and connected in sequence. The temperature collector is connected with the conducting strip and used for collecting temperature data. The temperature of the electric meter box can be monitored and intelligently judged in real time, and the electric meter box is effectively prevented from working in a continuous high-temperature state and a poor wiring state, so that remote management of the electric meter box is realized, and the safety and stability of power grid operation are ensured.

Description

Technical Field

[0001] This invention relates to the field of meter box temperature monitoring technology, and in particular to a monitoring device and method for monitoring the temperature of meter boxes. Background Technology

[0002] An electricity meter is a measuring instrument used to measure a user's electricity consumption. It is also an essential device for power grid metering and management of user electricity consumption. To increase the safety of electricity meter use, meter boxes are often used to protect the meter.

[0003] Due to the diversification of electrical equipment types and the complexity of power distribution line structures, the modes of electrical fault generation in power distribution lines are also complex and diverse. Moreover, some large-scale electrical fires are caused by electrical faults in power distribution lines. Therefore, preventing or eliminating the causes of fires in meter boxes in advance is helpful in managing the potential fire hazards of meter boxes.

[0004] Analysis of fault work order data for electricity meter boxes reveals that the main causes of burnt-out or fire-related issues with disconnectors / circuit breakers within the meter box include insufficient contact between the incoming power line and the disconnectors / circuit breakers. This leads to excessive contact resistance, which generates significant heat in areas with high current flow, causing discoloration or even melting of the metal and ignition of the wire insulation, ultimately resulting in a fire. Currently, existing technology cannot effectively identify high temperatures at the wiring terminals, hindering timely and effective warnings and responses to meter box malfunctions and fires. Furthermore, modifying the existing power distribution components within the meter box to achieve real-time temperature monitoring would require separate modifications for each type of disconnector / circuit breaker, as different models have varying wiring center distances. This would drastically increase modification costs, hindering the widespread adoption of power grid upgrades. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a monitoring device and method for monitoring the temperature of an electricity meter box. This addresses the limitation of existing technologies in real-time monitoring of electricity meter box temperature, enabling real-time monitoring and intelligent judgment of the meter box temperature. This prevents the meter box from operating under continuous high temperatures or with poor wiring, ensuring the safety and stability of the power grid.

[0006] In a first aspect, the present invention provides a monitoring device for monitoring the temperature of an electricity meter box, the monitoring device being installed inside the electricity meter box, comprising:

[0007] Housing, incoming wiring terminals, connectors, temperature acquisition unit, data processor, communication module, and conductive sheet;

[0008] The incoming line terminal is installed on the outer wall of the housing and is electrically connected to the incoming line of the meter box through the connector;

[0009] The conductive sheet is installed inside the housing. One end of the conductive sheet is electrically connected to the incoming terminal, and the other end of the conductive sheet extends out of the housing and is electrically connected to the knife switch of the meter box.

[0010] The temperature acquisition device, the data processor, and the communication module are all installed inside the housing and connected in sequence.

[0011] The temperature acquisition device is connected to the conductive sheet and is used to collect the temperature data of the conductive sheet and send it to the data processor. The data processor is used to determine whether the temperature data exceeds a preset temperature threshold, and when the temperature threshold is exceeded, it sends an alarm message to an external platform through the communication module.

[0012] Furthermore, the incoming terminal block includes a connector, a wire clamp, and a drive assembly, wherein the connector is electrically connected to the conductive sheet;

[0013] The wire clamp is disposed in the inner cavity of the connector, and the drive assembly is disposed on the top of the connector. The drive assembly is used to drive the wire clamp so that the wire clamp presses the connector head against the conductive sheet.

[0014] Furthermore, the wire clamp includes a slider and an elastic element, the slider being slidably connected to the inner cavity of the connecting seat, and the elastic element being disposed between the slider and the connecting seat;

[0015] The slider passes through the inner cavity of the connector via a sliding hole at the top of the connector.

[0016] Furthermore, a stepped surface is provided on the lower side wall of the inner cavity of the connecting seat, a convex ring is provided on the slider, the elastic element is sleeved on the slider, one end of the elastic element is in contact with the convex ring, and the other end of the elastic element is in contact with the stepped surface.

[0017] Furthermore, the drive assembly includes a first assembly housing, screws, and a locking device;

[0018] The first component housing is mounted on the top of the connector, and a screw hole corresponding to the sliding hole is provided on the top of the first component housing;

[0019] The screw passes through the screw hole into the interior of the first component housing and contacts the slider. The screw is used to push the slider downward to press the connector head.

[0020] The anti-loosening device includes a first ratchet and a first pawl adapted to the first ratchet;

[0021] The first ratchet is disposed on the screw;

[0022] There are at least two first pawls, which are evenly distributed on the top of the first component housing along the circumference of the screw.

[0023] Furthermore, the drive assembly includes a second assembly housing, a cam, and a locking mechanism;

[0024] The second component housing is mounted on top of the connector;

[0025] The cam is rotatably connected inside the second component housing and contacts the slider;

[0026] The locking mechanism includes a second ratchet and a second pawl adapted to the second ratchet;

[0027] The second ratchet is disposed on one side of the curved surface of the cam;

[0028] The second pawl is rotatably connected to the side of the second component housing and is on the same side as the second ratchet;

[0029] The cam is provided with a handle that extends to the outside of the second component housing, and the handle is used to control the cam to press down the slider;

[0030] An operating lever is provided on the second pawl, the operating lever extending to the outside of the second component housing, the operating lever being used to control the disengagement of the second ratchet and the second pawl.

[0031] Furthermore, the second pawl is rotatably connected to the side of the second component housing via a shaft portion, and a torsion spring is sleeved on the shaft portion;

[0032] The side of the second component housing is provided with an arc-shaped clearance groove, and the operating lever extends to the outside of the second component housing through the arc-shaped clearance groove.

[0033] Furthermore, the connector includes a contact plate, a base, a drive tube, and a locking tube, wherein the contact plate, the base, and the locking tube are connected in sequence;

[0034] The contacting piece is in contact with the conductive piece through the wire clamp;

[0035] The base is provided with threads, and one end of the drive tube is provided with a nut. The drive tube is sleeved on the outside of the locking tube and connected to the base through the nut.

[0036] The locking tube is used to connect to the incoming line of the meter box, and the driving tube is used to squeeze the locking tube so that the locking tube locks the incoming line of the meter box.

[0037] Furthermore, grooves are evenly distributed on the side wall of the locking tube, the grooves are arranged along the length direction of the locking tube and penetrate the side wall of the locking tube;

[0038] The inner cavity of the drive tube is truncated cone-shaped, and the diameter of the end of the inner cavity of the drive tube near the nut is smaller than the diameter of the end away from the nut.

[0039] Secondly, the present invention provides a monitoring method for monitoring the temperature of an electricity meter box, the monitoring method being applied to the monitoring device described above, comprising:

[0040] The temperature data of the conductive sheet is monitored in real time by a temperature acquisition device, and the temperature data is sent to a data processor.

[0041] The data processor determines whether the temperature data exceeds a preset temperature threshold, and if it does, sends an alarm message to an external platform via the communication module.

[0042] This invention provides a monitoring device and method for monitoring the temperature of an electricity meter box. The monitoring device provided by this invention enables real-time monitoring and intelligent judgment of the temperature of the electricity meter box without changing the original power distribution components inside the meter box. It can also send alarm information to an external platform in a timely manner through wireless communication technology, thereby preventing the meter box from operating under continuous high temperature conditions or poor wiring conditions, realizing remote management of the meter box, and thus ensuring the safety and stability of the power grid operation. Attached Figure Description

[0043] Figure 1 This is a schematic diagram of the structure of a monitoring device for monitoring the temperature of an electricity meter box in an embodiment of the present invention;

[0044] Figure 2 yes Figure 1 A schematic diagram of the first type of internal structure of the incoming grounding terminal;

[0045] Figure 3 yes Figure 1 A schematic diagram of the second type of internal structure of the incoming grounding terminal;

[0046] Figure 4 yes Figure 3 External structure diagram;

[0047] Figure 5 yes Figure 1 A schematic diagram of the third type of internal structure of the incoming grounding terminal;

[0048] Figure 6 yes Figure 5 External structure diagram;

[0049] Figure 7 yes Figure 1 A cross-sectional view of the connector in the diagram;

[0050] Figure 8 yes Figure 7 Internal structure diagram;

[0051] Figure 9 yes Figure 7 External structure diagram;

[0052] Figure 10 This is a flowchart illustrating a monitoring method for monitoring the temperature of an electricity meter box in an embodiment of the present invention.

[0053] Figure label:

[0054] 1. Housing; 11. Temperature sensor; 12. Data processor; 13. Communication module; 2. Incoming wiring terminal; 21. Conductive sheet; 22. Connecting seat; 221. Inner cavity; 2211. Stepped surface; 222. Slider; 2221. Protruding ring; 223. Elastic element; 224. Sliding hole; 23. Screw; 24. First pawl; 25. First ratchet; 26. Cam; 261. Handle; 241. Second pawl; 251. Second ratchet; 27. Connecting piece; 271. Seat; 2711. Operating part; 272. Locking tube; 2721. Groove; 273. Drive tube; 2731. Nut; 28. Shaft; 281. Torsion spring; 282. Operating lever; 283. Arc-shaped clearance groove; 30. First component housing; 31. Second component housing; 100. Connector. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 those skilled in the art without creative effort are within the scope of protection of the present invention.

[0056] Please see Figure 1The first embodiment of this invention proposes a monitoring device for monitoring the temperature of an electricity meter box. This device is installed inside the electricity meter box and includes: a housing 1, an incoming line terminal 2, a connector 100, a temperature acquisition device 11, a data processor 12, a communication module 13, and a conductive sheet 21. The incoming line terminal 2 is installed on the outer wall of the housing 1 and electrically connected to the incoming line of the electricity meter box via the connector 100. The conductive sheet 21 is installed inside the housing 1, with one end electrically connected to the incoming line terminal and the other end extending out of the housing 1 and electrically connected to the switch of the electricity meter box. The temperature acquisition device 11, data processor 12, and communication module 13 are all installed inside the housing 1 and connected sequentially. The temperature acquisition device 11 is connected to the conductive sheet 21 to collect temperature data from the conductive sheet 21 and send it to the data processor 12. The data processor 12 determines whether the temperature data exceeds a preset temperature threshold and, if it does, sends an alarm message to an external platform via the communication module 13.

[0057] The monitoring device provided by this invention adopts intelligent sensing and wireless transmission technology, which can monitor the temperature of the wiring terminals of the meter box in real time. When the monitored temperature is too high or the temperature changes abnormally, it sends an alarm message to an external platform, so that the equipment management personnel can arrive at the site as soon as possible to check and deal with the problem. This avoids the meter box from working under continuous high temperature and poor wiring conditions. The specific composition and structure of this monitoring device are described below.

[0058] In this embodiment, the incoming line terminal 2 is installed on the outer wall of the housing 1, and the conductive sheet 21 is installed inside the housing 1. One end of the conductive sheet 21 is electrically connected to the incoming line terminal 2, and the other end of the conductive sheet 21 extends out of the housing 1 and is electrically connected to the knife switch of the meter box. The connector 100 is connected to the incoming line of the meter box and the connector 100 is connected to the incoming line terminal 2, thereby realizing the connection between the conductive sheet 21 and the incoming line of the meter box.

[0059] In a preferred embodiment, the specific structure of the incoming terminal 2 is as follows: Figure 2 As shown, the device includes a connector 22, a wire clamp, and a drive assembly. The connector 22 is electrically connected to the conductive sheet 21. To improve conductivity between the connector 22 and the conductive sheet 21, the connector 22 and the conductive sheet 21 are preferably integrated. The shape of the conductive sheet 21 can be flexibly set according to actual needs and is not limited here. The wire clamp is located in the inner cavity 221 of the connector 22. The drive assembly is installed on the top of the connector 22. The connector head 100 is placed in the inner cavity 221 of the connector 22 and contacts the conductive sheet 21. The drive assembly drives the wire clamp to press down, pressing the connector head 100 and the conductive sheet 21 tightly together, thereby achieving close contact between the connector head 100 and the conductive sheet 21.

[0060] Specifically, the wire clamp includes a slider 222 and an elastic element 223. The slider 222 is slidably connected to the inner cavity 221 of the connector 22. A drive assembly located at the top of the connector 22 drives the slider 222 to press the connector 100 downward so that the connector 100 and the conductive sheet 21 are in close contact. An elastic element 223 is provided between the slider 222 and the connector 22. The elastic element 223 is used to push the slider 222 upward so that the connector 100 and the conductive sheet 21 are disengaged.

[0061] To limit the sliding range of the slider 222, a stepped surface 2211 is provided on the lower side wall of the inner cavity 221 of the connecting seat 22. A convex ring 2221 is provided on the slider 222. An elastic element 223 can be sleeved on the slider 222. One end of the elastic element 223 contacts one end face of the convex ring 2221, and the other end of the elastic element 223 contacts the stepped surface 2211. To make the device structure more stable, the convex ring 2221 and the slider 222 can be an integral structure, and the elastic element 223 can be a spring. A sliding hole 224 is provided on the top of the connecting seat 22. The slider 222 can pass through the inner cavity 221 of the connecting seat 22 through the sliding hole 224. When the drive component presses down the slider 222, the slider 222 can slide through the sliding hole 224, the convex ring 2221, and the stepped surface 2211 in the inner cavity 221 of the connecting seat 22, thereby realizing the clamping operation of the connector 100.

[0062] For the driving component that drives the wire clamp to press down, this invention provides two different driving components with different structures. One is mainly based on a screw structure, and the other is mainly based on a cam structure. In practical applications, different driving components can be flexibly selected according to actual needs. The two different driving components are described below.

[0063] In a preferred embodiment, the internal structure diagram of the incoming terminal 2 is shown below. Figure 3 As shown, the drive assembly includes a first component housing 30, a screw 23, and a locking device. The first component housing 30 is mounted on top of the connector 22, and a screw hole corresponding to the position of the sliding hole 224 is provided on the top of the first component housing 30. The screw 23 passes through the screw hole into the interior of the first component housing 30 and contacts the slider 222. The screw 23 is used to push the slider 222 downward to press the connector 100. A schematic diagram of the external structure of the incoming terminal 2 is shown below. Figure 4As shown, in order to prevent the screw 23 from loosening, an anti-loosening device is also provided in the drive assembly. The anti-loosening device includes a first ratchet 25 and a first pawl 24 adapted to the first ratchet 25. The first ratchet 25 is disposed on the screw 23, and the first pawl 24 is disposed on the top of the first assembly housing 30. There are at least two first pawls 24. Multiple first pawls 24 are evenly disposed on the top of the first assembly housing 30 along the circumference of the screw 23, that is, along the first ratchet 25. Preferably, the first ratchet 25 and the screw 23 can be an integral structure.

[0064] In this embodiment, the screw 23 in the drive assembly pushes the slider 222 downward to press the connector 100 through the screw hole. Since the screw 23 and the connector 100 do not directly contact each other, the connector 100 can be prevented from being damaged when the screw 23 is rotated. When the screw 23 is rotated to a certain position, the connector 100 and the conductive sheet 21 are pressed together. The screw 23 is fixed by controlling the first pawl 24 to engage with the first ratchet 25, thus preventing the screw 23 from loosening.

[0065] In another preferred embodiment, the internal structure of the incoming terminal 2 is shown in the schematic diagram below. Figure 5 As shown, the drive assembly includes a second component housing 31, a cam 26, and a locking mechanism. The second component housing 31 is mounted on top of the connector 22. The cam 26 is rotatably connected inside the second component housing 31 and contacts the slider 222. The cam 26 pushes the slider 222 downward to press the connector 100. To prevent the cam 26 from slipping back, the drive assembly is also provided with a corresponding locking mechanism. The locking mechanism includes a second ratchet 251 and a second pawl 241 adapted to the second ratchet 251. The second ratchet 251 is located on one side of the curved surface of the cam 26, and the second pawl 241 is located on the side of the second component housing 31, with the second ratchet 251 and the second pawl 241 on the same side. When the cam 26 rotates and presses the slider 222 to a certain position to press the connector 100 and the conductive sheet 21 together, the second ratchet 251 and the second pawl 241 engage, thereby locking the cam 26 to prevent it from slipping back.

[0066] The external structure diagram of the incoming terminal 2 in this embodiment is shown below. Figure 6 As shown, to facilitate the operation of cam 26 and its downward pressure on slider 222, a handle 261 is provided on cam 26. The handle 261 extends to the outside of the second component housing 31. Preferably, cam 26 and handle 261 can be an integral structure. Furthermore, to enable the second ratchet 251 and the second pawl 241 to disengage from the engaged state, an operating lever 282 is provided on the second pawl 241. The operating lever 282 extends to the outside of the second component housing 31, allowing the operator to control the second pawl 241 to disengage from the second ratchet 251 via the operating lever 282.

[0067] Furthermore, the second pawl 241 is rotatably connected to the side of the second component housing 31 via a shaft 28. A torsion spring 281 is fitted onto the shaft 28, with one end of the torsion spring 281 fixed to the connecting seat 22 and the other end fixed to the shaft 28. The torsion spring 281 is used to maintain the second pawl 241 in engagement with the second ratchet 251. An arc-shaped relief groove 283 is provided on the side of the second component housing 31, and the operating lever 282 extends to the outside of the second component housing 31 through the arc-shaped relief groove 283. When it is necessary to rotate the locked cam 26, the operating lever 282 overcomes the force of the torsion spring 281, causing the second pawl 241 to disengage from the second ratchet 251.

[0068] It should be noted that in the previous embodiment, a torsion spring 281 was also provided on the first pawl 24 to keep the first pawl 24 and the first ratchet 25 in engagement. However, since the first pawl 24 was located on the outside of the first component housing 30, the operator could manually disengage the first pawl 24 and the first ratchet 25. In this embodiment, the second pawl 241 and the second ratchet 251 are located inside the second component housing 31, so the disengagement operation needs to be performed by an operating rod 282 extending to the outside of the second component housing 31. Based on the structure of the drive component in this embodiment, the release and locking of the cam 26 can be achieved simply by using the operating rod 282 and the handle 261, thereby optimizing the operating performance of the drive component.

[0069] In the above embodiments, the present invention prevents malfunction of screw 23 or cam 26 by using a ratchet and pawl in combination. In practical applications, power distribution devices may be under vibration, meaning the device may be subjected to vibration forces. To maintain the stability of the power grid, such vibration should not cause the wiring of the monitoring device to fail or loosen. Therefore, the present invention, by using a ratchet and pawl, can effectively prevent the failure and loosening of screw 23 or cam 26, thereby improving the stability of the monitoring device.

[0070] In a preferred embodiment, the cross-sectional view of the connector 100 is as follows: Figure 7 As shown, the connector 100 includes a contact piece 27, a base 271, a drive tube 273, and a locking tube 272. The contact piece 27, the base 271, and the locking tube 272 are connected in sequence. When the contact piece 27 is connected to the conductive piece 21, it is placed below the inner cavity 221 of the connector 22, that is, on the conductive piece 21. When the slider 222 moves downward, it presses the contact piece 27 and the conductive piece 21 together. One end of the base 271 is connected to the contact piece 27, and the other end is connected to the locking tube 272. The inner cavity of the locking tube 272 is used to house the inlet wire of the meter box. The inlet wire of the meter box is connected to the conductive piece 21 through the locking tube 272, the base 271, and the contact piece 27.

[0071] The internal structure diagram of connector 100 is shown below. Figure 8 As shown, the seat 271 is provided with threads, and one end of the drive tube 273 is provided with a nut 2731 that matches the threads. Grooves 2721 are evenly distributed on the side wall of the locking tube 272. The grooves 2721 are arranged along the length of the locking tube 272 and penetrate through the side wall of the locking tube 272. The diameter of the locking tube 272 can be dynamically adjusted through the grooves 2721, thereby adapting to various different diameter incoming lines. A schematic diagram of the external structure of the connector 100 is shown below. Figure 9 As shown, the drive tube 273 is sleeved on the outside of the locking tube 272 and connected to the seat 271 by the nut 2731. The inner cavity of the drive tube 273 is frustoconical in shape. The diameter of the end of the inner cavity of the drive tube 273 near the nut 2731 is smaller than the diameter of the end away from the nut 2731. By rotating the nut 2731, the connection length between the drive tube 273 and the seat 271 is controlled to squeeze the locking tube 272, thereby locking the inlet wire that is sleeved into the locking tube 272. In addition, the seat 271 is also provided with an operating part 2711. The operating part 2711 has a polygonal structure, which makes it easy for the operator to fix the seat 271, thereby facilitating the rotation of the nut 2731.

[0072] Based on the structure of the connector 100, when the nut 2731 is rotated, the drive tube 273 moves on the seat 271 through the thread. This movement causes the drive tube 273 to shift towards the contact piece 27, thereby giving the drive tube 273 and the locking tube 272 more overlap. Since the inner cavity of the drive tube 273 is frustum-shaped, when the drive tube 273 shifts, its inner cavity will squeeze the locking tube 272. Since the locking tube 272 has a groove 2721 on its side wall, when the locking tube 272 is squeezed, its inner diameter will decrease, thereby fixing the inlet wire of the inner cavity of the locking tube 272 inside the locking tube 272.

[0073] The monitoring device for monitoring the temperature of the meter box provided by this invention enables real-time monitoring and intelligent judgment of the meter box temperature without changing the original power distribution components inside the meter box. It also sends alarm information to an external platform in a timely manner through wireless communication technology, effectively preventing the meter box from operating under continuous high temperature conditions or poor wiring conditions. This enables remote management of the meter box and ensures the safety and stability of the power grid operation.

[0074] Please see Figure 10 Based on the same inventive concept, the second embodiment of the present invention proposes a monitoring method for monitoring the temperature of an electricity meter box. This method is applied to the monitoring device described above and includes steps S10 to S20:

[0075] Step S10: Monitor the temperature data of the conductive sheet in real time using a temperature acquisition device, and send the temperature data to a data processor;

[0076] Step S20: The data processor determines whether the temperature data exceeds a preset temperature threshold, and if the temperature threshold is exceeded, an alarm message is sent to an external platform through the communication module.

[0077] The technical features and effects of the monitoring method for monitoring the temperature of the meter box proposed in this embodiment of the invention are the same as those of the device proposed in this embodiment of the invention, and will not be repeated here.

[0078] In summary, the present invention provides a monitoring device and method for monitoring the temperature of an electricity meter box. The device includes a housing, an incoming line terminal, a connector, a temperature acquisition unit, a data processor, a communication module, and a conductive plate. The incoming line terminal is installed on the outer wall of the housing and is electrically connected to the incoming line of the electricity meter box through the connector. The conductive plate is installed inside the housing, with one end electrically connected to the incoming line terminal and the other end extending out of the housing and electrically connected to the switch of the electricity meter box. The temperature acquisition unit, the data processor, and the communication module are all installed inside the housing and connected in sequence. The temperature acquisition unit is connected to the conductive plate and is used to collect the temperature data of the conductive plate and send it to the data processor. The data processor is used to determine whether the temperature data exceeds a preset temperature threshold, and if the temperature threshold is exceeded, it sends an alarm message to an external platform through the communication module. The monitoring device provided by this invention enables real-time monitoring and intelligent judgment of the temperature of the meter box without changing the original power distribution components inside the meter box. It also sends alarm information to an external platform in a timely manner through wireless communication technology, effectively preventing the meter box from operating under continuous high temperature conditions or poor wiring conditions. This enables remote management of the meter box and ensures the safety and stability of the power grid operation.

[0079] The various embodiments in this specification are described in a progressive manner. For directly identical or similar parts of the embodiments, refer to each other. Each embodiment focuses on its differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments. It should be noted that the technical features of the above embodiments can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification.

[0080] The embodiments described above are merely preferred embodiments of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various improvements and substitutions without departing from the technical principles of this invention, and these improvements and substitutions should also be considered within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the scope of the claims.

Claims

1. A monitoring device for monitoring the temperature of an electricity meter box, characterized in that, The monitoring device is installed inside the meter box and includes: Housing (1), incoming line terminal (2), connector (100), temperature acquisition unit (11), data processor (12), communication module (13) and conductive sheet (21); The incoming line terminal (2) is installed on the outer wall of the housing (1) and is electrically connected to the incoming line of the meter box through the connector (100); The conductive sheet (21) is installed inside the housing (1). One end of the conductive sheet (21) is electrically connected to the incoming terminal (2), and the other end of the conductive sheet (21) extends out of the housing (1) and is electrically connected to the switch of the meter box. The temperature acquisition device (11), the data processor (12), and the communication module (13) are all installed inside the housing (1) and connected in sequence; The temperature acquisition device (11) is connected to the conductive sheet (21) and is used to acquire the temperature data of the conductive sheet (21) and send it to the data processor (12). The data processor (12) is used to determine whether the temperature data exceeds the preset temperature threshold and, when the temperature threshold is exceeded, to send an alarm message to the external platform through the communication module (13).

2. The monitoring device for monitoring the temperature of an electricity meter box according to claim 1, characterized in that, The incoming terminal block (2) includes a connector (22), a wire clamp, and a drive assembly. The connector (22) is electrically connected to the conductive sheet (21). The wire clamp is disposed in the inner cavity (221) of the connector (22), and the drive assembly is disposed on the top of the connector (22). The drive assembly is used to drive the wire clamp so that the wire clamp presses the connector (100) against the conductive sheet (21).

3. The monitoring device for monitoring the temperature of an electricity meter box according to claim 2, characterized in that, The wire clamp includes a slider (222) and an elastic element (223). The slider (222) is slidably connected to the inner cavity (221) of the connecting seat (22), and the elastic element (223) is disposed between the slider (222) and the connecting seat (22). The slider (222) passes through the inner cavity (221) of the connecting seat (22) through the sliding hole (224) at the top of the connecting seat (22).

4. The monitoring device for monitoring the temperature of an electricity meter box according to claim 3, characterized in that, The lower side wall of the inner cavity (221) of the connecting seat (22) is provided with a stepped surface (2211), the slider (222) is provided with a convex ring (2221), the elastic element (223) is sleeved on the slider (222), one end of the elastic element (223) is in contact with the convex ring (2221), and the other end of the elastic element (223) is in contact with the stepped surface (2211).

5. The monitoring device for monitoring the temperature of an electricity meter box according to claim 3, characterized in that, The drive assembly includes a first assembly housing (30), a screw (23), and a locking device; The first component housing (30) is mounted on the top of the connecting seat (22), and a screw hole corresponding to the sliding hole (224) is provided on the top of the first component housing (30); The screw (23) passes through the screw hole into the interior of the first component housing (30) and contacts the slider (222). The screw (23) is used to push the slider (222) downward to press the connector (100). The anti-loosening device includes a first ratchet (25) and a first pawl (24) adapted to the first ratchet (25); The first ratchet (25) is disposed on the screw (23); There are at least two first pawls (24), which are evenly distributed on the top of the first component housing (30) along the circumference of the screw (23).

6. The monitoring device for monitoring the temperature of an electricity meter box according to claim 3, characterized in that, The drive assembly includes a second assembly housing (31), a cam (26), and a locking mechanism; The second component housing (31) is mounted on top of the connector (22); The cam (26) is rotatably connected inside the second component housing (31) and contacts the slider (222); The locking mechanism includes a second ratchet (251) and a second pawl (241) adapted to the second ratchet (251); The second ratchet (251) is disposed on one side of the curved surface of the cam (26); The second pawl (241) is rotatably connected to the side of the second component housing (31) and is on the same side as the second ratchet (251); A handle (261) is provided on the cam (26), the handle (261) extends to the outside of the second component housing (31), and the handle (261) is used to control the cam (26) to press down the slider (222); An operating lever (282) is provided on the second pawl (241), the operating lever (282) extends to the outside of the second component housing (31), and the operating lever (282) is used to control the second ratchet (251) and the second pawl (241) to disengage.

7. The monitoring device for monitoring the temperature of an electricity meter box according to claim 6, characterized in that, The second pawl (241) is rotatably connected to the side of the second component housing (31) via a shaft (28), and a torsion spring (281) is sleeved on the shaft (28); The side of the second component housing (31) is provided with an arc-shaped relief groove (283), and the operating lever (282) extends to the outside of the second component housing (31) through the arc-shaped relief groove (283).

8. The monitoring device for monitoring the temperature of an electricity meter box according to claim 2, characterized in that, The connector (100) includes a contact plate (27), a base (271), a drive tube (273), and a locking tube (272), which are connected in sequence. The contacting piece (27) is in contact with the conductive piece (21) through the wire clamp; The seat (271) is provided with threads, and one end of the drive tube (273) is provided with a nut (2731). The drive tube (273) is sleeved on the outside of the locking tube (272) and connected to the seat (271) through the nut (2731). The locking tube (272) is used to connect the incoming line of the meter box, and the driving tube (273) is used to squeeze the locking tube (272) so that the locking tube (272) locks the incoming line of the meter box.

9. The monitoring device for monitoring the temperature of an electricity meter box according to claim 8, characterized in that, The locking tube (272) has grooves (2721) evenly distributed on its side wall. The grooves (2721) are arranged along the length of the locking tube (272) and penetrate the side wall of the locking tube (272). The inner cavity of the drive tube (273) is frustum-shaped, and the diameter of the end of the inner cavity of the drive tube (273) near the nut (2731) is smaller than the diameter of the end away from the nut (2731).

10. A monitoring method for monitoring the temperature of an electricity meter box, characterized in that, The method is applied to the monitoring device as described in any one of claims 1 to 9, comprising: The temperature data of the conductive sheet is monitored in real time by a temperature acquisition device, and the temperature data is sent to a data processor. The data processor determines whether the temperature data exceeds a preset temperature threshold, and if it does, sends an alarm message to an external platform via the communication module.

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