Electronic electric energy meter with acquisition function

Abstract

The application belongs to the technical field of electric energy meter, and particularly relates to an electronic electric energy meter with a data collection function, which comprises a meter shell, a meter cover, a data collection unit, a data display unit and a safety unit. The meter cover is connected and installed on the meter shell through bolts. A protruding part is formed on the bottom of the meter cover. The data collection unit is installed inside the protruding part. The smart control terminal controls the extension equipment to start. After starting, the driving cutting knife moves downward. The downward cutting knife contacts the data transmission wire distributed in the corresponding area and cuts the data transmission wire, so as to avoid the high temperature, flame and possible current along the data transmission wire from threatening the data collector located in the electric energy meter, thereby ensuring the safety of the stored data.

Description

Technical Field

[0001] This invention belongs to the field of electricity meter technology, specifically an electronic electricity meter with data collection function. Background Technology

[0002] An electricity meter is an instrument used to measure electrical energy; it is also called an electricity meter, watt-hour meter, or kilowatt-hour meter, and refers to instruments that measure various electrical quantities. Electronic electricity meters sample the voltage and current supplied to the user in real time, use dedicated integrated circuits to process and multiply the sampled voltage and current signals, converting them into pulse outputs proportional to the electrical energy, which are then displayed through a counter or digital display.

[0003] To improve work efficiency and monitor and record the power consumption of multiple electrical devices simultaneously, existing smart meters typically have data acquisition units installed inside. These units connect to the metering devices within various electrical appliances, converting relevant data into pulse signals for output. The data acquisition unit collects the pulse signals from each meter according to the constant values ​​of each type of meter, then performs internal calculations to obtain the corresponding meter data, which is stored in the data acquisition unit and displayed on the surface screen for easy data recording by the user.

[0004] Data acquisition devices are typically connected to external electrical equipment via physical wires. Especially in environments with a large number of electronic devices, wireless data transmission is difficult to stabilize due to the influence of the electromagnetic environment. Therefore, a more stable and secure wired method is adopted, which uses physical wires to connect various external power devices and data acquisition devices to achieve smooth and stable transmission of power data.

[0005] When a safety accident occurs, the collected circuit data becomes abnormal. For example, a major accident such as an overload or fire of an external electrical appliance may damage the electricity meter from the outside, affecting the stored data and making it difficult to retrieve the stored real-time data after the accident, thus hindering the investigation of the cause of the accident. Therefore, to ensure circuit safety, the electricity meter casing is designed to withstand high temperatures, and the electricity meter is often equipped with a safety alarm and an automatic power-off device. The alarm will automatically sound when the circuit is unstable, and the automatic power-off device will automatically cut off the circuit after the alarm sounds. Existing automatic power-off devices mainly preload the power-off program into the microprocessor inside the data acquisition unit. Through the control of the microprocessor, the data and current transmission with the outside world is cut off, reducing the overload damage to the data acquisition unit caused by unstable current signals due to accidents.

[0006] However, in actual use, it has been found that even if the outer casing of the electricity meter is made of high-temperature resistant insulating material, thus providing sealed protection for the internal electronic components, and with the timely operation of the fire extinguishing and security system, the preservation of the electricity meter during an accident can be greatly improved. However, due to the presence of physical external wiring, even if the power supply and data transmission are cut off, the physical connection is difficult to sever in time. Furthermore, physical wires often include flammable rubber sheaths, and the internal metal wires may also act as carriers of overload current. In an electrical fire accident, the high temperature of the flame or the overload current may be conducted along the physical wires into the electronic components inside the electricity meter, causing damage to the internal electronic components, resulting in data loss, expanding the damage, and even hindering subsequent investigations. Moreover, manually cutting off the physical external wiring during an accident is too dangerous and difficult to achieve. Summary of the Invention

[0007] To overcome the shortcomings of existing technologies and solve the aforementioned technical problems, this invention proposes an electronic energy meter with data acquisition function.

[0008] The technical solution adopted by this invention to solve its technical problem is: an electronic energy meter with data collection function, including a meter casing, a meter cover, a data collection unit, a data display unit, and a safety unit. The meter cover is installed on the meter casing by bolts, and the bottom of the meter cover protrudes to form a protrusion. The data collection unit is installed inside the protrusion. The data collection unit includes a data collector and a data transmission wire. The data collector is installed inside the protrusion and is connected to an external circuit through the data transmission wire.

[0009] The data display unit is connected to the data acquisition unit and is used to process the data collected by the data acquisition unit and display it on the electronic display screen installed on the watch cover; the safety unit includes an alarm and an automatic power-off module. The alarm is used to automatically sound an alarm when the circuit is unstable, and the automatic power-off device automatically cuts off the circuit after the alarm sounds. Its features are:

[0010] The protrusion has a control chamber inside, and the bottom of the control chamber has wire holes that are evenly distributed and communicate with the outside. The side wall of the control chamber has wire inlet holes that are evenly distributed at the corresponding parts of the wire holes. The wire inlet holes communicate with the inside of the watch case. The data transmission wire connected to the external line is introduced from the wire holes and passes through the wire inlet holes to enter the inside of the watch case.

[0011] The automatic power-off device includes a cutting blade installed at the bottom of the control room, and a telescopic device is installed between the cutting blade and the top of the control room. The cutting blade is used to cut the data transmission line.

[0012] Preferably, the control room is connected to an external gas fire extinguishing system via a safety pipe.

[0013] Preferably, a support platform is provided on the side wall of the control room below the inlet hole, and a limiting groove is provided on the top of the support platform corresponding to the data transmission cable, and the part of the data transmission cable corresponding to the limiting groove is embedded in the limiting groove;

[0014] The top of the support platform is provided with a cutting groove at the location corresponding to the bottom of the cutting blade.

[0015] Preferably, the cutting blade includes a fixing plate and a cutting edge, the fixing plate being fixedly installed at the bottom of the telescopic device; the bottom of the fixing plate is in contact with the adjacent side wall of the control room, and the part of the bottom of the fixing plate in contact with the side wall of the control room is an insulating part;

[0016] The blade is installed at the bottom of the fixed plate, and a semi-circular groove is provided at the end of the blade corresponding to the limiting groove, and a cutting edge is provided inside the semi-circular groove.

[0017] Preferably, the cutting blades located in the semi-circular groove are symmetrically arranged, and the cutting edge portion at the bottom of the cutting blade is inclined to the horizontal plane; the cutting edge portion of the cutting blade is uniformly provided with serrated protrusions.

[0018] Preferably, the support platform includes a stabilizing part and a detaching part, the gap between the stabilizing part and the detaching part forms a cutting groove, and the stabilizing part and the detaching part are fixed together by a connecting member;

[0019] A release plate is provided at the bottom of the control room, the wire hole is located on the release plate, and the release plate is fixedly connected to the connector release plate.

[0020] Preferably, the connecting member is a fixed electromagnet, which is located inside the cutting groove on the side wall corresponding to the stabilizing part;

[0021] The detachment part located inside the cutting groove is made of iron and is in close contact with the fixed electromagnet.

[0022] Preferably, the connector is a fixing rope, which is located inside the cutting groove and directly below the limiting groove; and the vertical cross-section of the blade is conical.

[0023] The beneficial effects of this invention are as follows:

[0024] 1. The present invention discloses an electronic energy meter with data acquisition function, which controls the telescopic device to start via an intelligent control terminal. After starting, the device drives the cutting blade to move downward. The downward-moving cutting blade contacts the data transmission wires distributed in the corresponding area and cuts the data transmission wires, thereby preventing high temperature, flames and possible current from threatening the data acquisition device located inside the energy meter along the data transmission wires, thus ensuring the safety of the stored data.

[0025] 2. The electronic energy meter with data acquisition function described in this invention sets the cut-off point of the data transmission wire in the temporal part of the nearly sealed control chamber. The control chamber acts as a buffer against potential flames. Even if a flame enters the control chamber along the data transmission wire, it will be interrupted at the cut-off point. Furthermore, the nearly enclosed environment in the control chamber further prevents the flame or current from extending into the energy meter, thus further protecting the inside of the energy meter. Attached Figure Description

[0026] The invention will now be further described with reference to the accompanying drawings.

[0027] Figure 1 This is a perspective view of the present invention;

[0028] Figure 2 This is a structural diagram of the control room in this invention;

[0029] Figure 3 yes Figure 2 A magnified view of a section at point A in the middle;

[0030] Figure 4 This is a cross-sectional view of the protruding part of the connector in this invention, which uses a fixed electromagnet.

[0031] Figure 5 This is a cross-sectional view of the protruding part of the connector using a fixing rope in this invention;

[0032] Figure 6 This is an internal structural diagram of the fixed chamber when the release part and release plate are removed and the connecting parts are fixed electromagnets;

[0033] Figure 7 This is an internal structural diagram of the fixed chamber when the release part and release plate are removed and the connecting parts are fixed ropes;

[0034] Figure 8 This is a perspective view of the cutting blade in this invention;

[0035] Figure 9 yes Figure 8 A magnified view of a section at point B in the middle;

[0036] Figure 10 This is a perspective view of the detachment part and the detachment plate in this invention;

[0037] In the diagram: 1. Case 2. Cover 2. Protrusion 21. Control chamber 22. Wire hole 221. Inlet hole 222. Safety tube 23. Electronic display screen 24. Data collection unit 3. Data transmission wire 31. Data display unit 4. Automatic power-off module 5. Cutting knife 51. Fixing plate 511. Blade 512. Insulation part 513. Semicircular groove 514. Cutting blade 515. Telescopic device 52. Support platform 53. Limiting groove 531. Cutting groove 532. Stabilizing part 533. Detachment part 534. Detachment plate 535. Fixing electromagnet 536. Fixing rope 537. Detailed Implementation

[0038] 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, and 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.

[0039] Example 1:

[0040] An electronic energy meter with data collection function, as shown in the attached diagram of the instruction manual. Figure 1-3 As shown, it includes a watch case 1, a watch cover 2, a data collection unit 3, a data display unit 4, and a safety unit. The watch cover 2 is bolted to the watch case 1. The watch cover 2 and the watch case 1 are made of high-temperature resistant insulating material, which encloses and protects the internal electronic components. When it is necessary to replace the internal electronic components, the watch cover 2 can be removed to open the interior for operation.

[0041] The data collection unit 3 includes a data acquisition unit and a data transmission cable 31. The data acquisition unit is installed inside the protrusion 21 and is connected to the external circuit via the data transmission cable 31. Especially in environments with many electronic devices, wireless data transmission is difficult to stabilize due to the influence of the electromagnetic environment. Therefore, a more stable and secure wired method is adopted. By using the data transmission cable 31 to connect various external power devices and the data acquisition unit located inside the meter housing 1, the smooth and stable transmission of power consumption data is achieved. The data acquisition unit here is a prior art technology that can collect pulse current data signals generated by meters inside multiple power devices, convert them into data information, record and store them for use as backup data during the inspection process. Furthermore, a microprocessor is installed inside the data acquisition unit as an intelligent control terminal to control the movement of various components.

[0042] The data display unit 4 is connected to the data acquisition unit and is used to process the data collected by the data acquisition unit and display it on the electronic display screen 24 installed on the meter cover 2, so that maintenance and inspection personnel can observe and record the data. When a safety accident occurs, the collected circuit data becomes abnormal. For example, a major accident such as an overload or fire of an external electrical appliance may damage the electricity meter from the outside, which will affect the stored data and make it difficult to retrieve the stored real-time data after the accident, thus affecting the investigation of the cause of the accident. Therefore, in order to ensure circuit safety, a safety unit including an alarm and an automatic power-off module 5 is required. The alarm is used to automatically alarm when the circuit is unstable, and the automatic power-off module 5 automatically cuts off the circuit after the alarm is triggered. The existing power-off module mainly preloads the power-off program of the intelligent control terminal. Through the function of the intelligent control terminal, the data and current transmission with the outside world is cut off, reducing the overload damage to the connected data acquisition unit caused by unstable current signals due to accidents through the data transmission wire 31.

[0043] However, in actual use, it has been found that using high-temperature resistant insulating materials for the meter cover 2 and the meter casing 1 to seal and protect the internal electronic components, combined with the timely operation of the fire extinguishing and security system, can greatly improve the preservation of the electricity meter during an accident. However, due to the presence of external lines such as the data transmission line 31, even if the power supply and data transmission are cut off, the physical connection is difficult to disconnect in time. Furthermore, the data transmission line 31 often includes a flammable rubber outer sheath, and the internal metal wire may also act as a carrier for overload current. In an electrical fire accident, the high temperature of the flame or the overload current may be conducted along the data transmission line 31 into the internal electronic components of the electricity meter, causing damage to the internal electronic components, resulting in data loss, expanding the damage, and even hindering subsequent investigations. In the event of an accident, manually cutting off external lines such as the data transmission line 31 is too dangerous and difficult to achieve.

[0044] To avoid the above problems, a protrusion 21 is formed at the bottom of the watch cover 2. The data collection unit 3 is installed inside the protrusion 21. A control chamber 22 is provided inside the protrusion 21. The bottom of the control chamber 22 is provided with wire holes 221 that communicate with the outside. The side wall of the control chamber 22 is provided with wire inlet holes 222 that correspond to the wire holes 221. The wire inlet holes 222 communicate with the inside of the watch case 1. The inside of the control chamber 22 is in a nearly closed state. The side walls are all made of high-temperature resistant insulating material. Only the wire inlet holes 222 are left to enter the inside of the watch case 1. The wire holes 221 communicate with the outside. The data transmission wire 31 connected to the outside line is introduced from the wire holes 221 and passes through the wire inlet holes 222 to enter the inside of the watch case 1.

[0045] The automatic power-off module 5 includes a cutting blade 51, which is installed at the bottom of the control room 22. A telescopic device 52 is installed between the cutting blade 51 and the top of the control room 22. The cutting blade 51 is used to cut the data transmission line 31.

[0046] Specific workflow: During normal operation, the electrical equipment corresponding to the electricity meter transmits data to the data acquisition unit located inside the electricity meter via the data transmission cable 31. After backup and storage, the data is transmitted to the data display unit 4. After data processing, the data is displayed on the electronic display screen 24 on the surface, facilitating data recording by personnel. When an overload occurs in the surrounding electrical equipment, causing an accident, the intelligent control terminal in the data acquisition unit automatically cuts off the transmission signal in the data transmission cable 31 leading to the electricity meter. It also quickly sends a feedback to security and maintenance personnel via the alarm, enabling timely measures to be taken, the security system to be activated, the accident to be controlled, and losses to be minimized.

[0047] When an accident is severe and difficult to control in time, and may cause a fire, high temperatures and flames may enter the electricity meter along the data transmission line 31, threatening data security. In this case, it is necessary to physically cut off the data transmission line 31 to ensure the safety of the electricity meter. Therefore, the telescopic device 52 is activated by the intelligent control terminal. The telescopic device 52 can be an electric telescopic pole or other equipment in the prior art. After activation, the cutting blade 51 is driven to move downward. The downward-moving cutting blade 51 contacts the data transmission line 31 distributed in the corresponding area and cuts off the data transmission line 31. This prevents high temperatures, flames, and possible currents from threatening the data acquisition unit located inside the electricity meter along the data transmission line 31, thereby ensuring the safety of the stored data.

[0048] If the automatic power-off program of the intelligent control terminal malfunctions and fails to start in time, cutting the data transmission line 31 may cause an electric spark. The appearance of an open flame may cause the accident to escalate. Therefore, the cutting point is controlled inside the nearly sealed control room 22 to prevent the possible open flame from spreading and reduce the scope of impact. In addition, the control room 22 acts as a buffer for any flames that may enter. Even if the flame enters the control room 22 along the data transmission line 31, it will be unable to continue to extend and will be interrupted at the cutting point. Furthermore, the nearly enclosed environment in the control room 22 will further prevent the flame or current from extending into the electricity meter, thus further protecting the inside of the electricity meter.

[0049] Example 2:

[0050] Based on Embodiment 1, as shown in the accompanying drawings of the specification. Figure 1-7As shown, in existing electrical security systems, gas extinguishing systems are an important component. By inputting extinguishing gases that do not support combustion, such as a mixed gas extinguishing agent composed of nitrogen, argon, and carbon dioxide in a certain proportion, it can achieve flame-retardant and fire-extinguishing effects without corroding electronic components. During installation, the output end of the gas extinguishing system is first placed in an area close to the installation location of the electricity meter. This effectively and promptly prevents the spread of flames from damaging the electricity meter in the event of an accident. On the other hand, the output end of the gas extinguishing system is equipped with a safety pipe 23, which connects the control room 22 to the external gas extinguishing system. When the gas extinguishing system is activated, a portion of the output extinguishing gas is guided into the control room 22 through the safety pipe 23, achieving the effect of fire extinguishing and flame retardant.

[0051] Specific workflow: Based on the specific workflow in Example 1, when an electrical equipment malfunctions and causes a fire, the electrical security system automatically starts, and the gas extinguishing system also starts. While controlling the fire by outputting extinguishing gas through the output terminal, because the electricity meter is close to the output terminal of the gas extinguishing system, the outflowing extinguishing gas washes over the electricity meter, preventing the fire from extending into the electricity meter and threatening the internal circuit components and stored data. Furthermore, through the safety pipe 23, a portion of the extinguishing gas flows into the control room 22. In the near-sealed environment, the extinguishing gas accumulates and expels oxygen from inside the control room 22, thereby creating a flame-retardant environment and further reducing the extension of the flame along the data transmission cable 31. Simultaneously, the extinguishing gas inside the control room 22 flows out through the cable hole 221, washing over the section of the disconnected data transmission cable 31 that is connected to the outside, further preventing the flame from extending along the data transmission cable 31 and ensuring the safety of the internal electronic components.

[0052] Example 3:

[0053] Based on Embodiment 2, as shown in the accompanying drawings of the specification. Figure 1-7 As shown, a support platform 53 is provided on the side wall of the control room 22 below the inlet hole 222. A limiting groove 531 is provided on the top of the support platform 53 corresponding to the data transmission cable 31. The vertical cross-section of the limiting groove 531 is semi-circular, and the part of the data transmission cable 31 corresponding to the limiting groove 531 is embedded in the limiting groove 531 and is limited, reducing the possibility of the data transmission cable 31 being difficult to cut completely due to pressure movement during the cutting process. A cutting groove 532 is provided on the top of the support platform 53 corresponding to the bottom of the cutting blade 51.

[0054] Specific workflow: Based on the specific workflow in Example 2, during the installation of the data transmission cable 31, the portion of the data transmission cable 31 located inside the control room 22 near the inlet hole 222 is embedded in the limiting groove 531 to ensure the stability of the data transmission cable 31 during use. After the telescopic device 52 is activated, the downward-moving cutting blade 51 continues to move downward after contacting the data transmission cable 31. At this time, the data transmission cable 31 is deformed and broken under pressure. Under the action of the limiting groove 531, the deformation of the data transmission cable 31 is restricted, ensuring its cooperation with the cutting blade 51 and being cut in a stable state. Furthermore, after the end of the cutting blade 51 moves downward, it can be embedded in the cutting groove 532, so that the downward movement distance of the end of the cutting blade 51 after contacting the data transmission cable 31 exceeds the diameter of the data transmission cable 31. This ensures that even if the data transmission cable 31 is deformed and stretched, it will be completely cut off, further ensuring the physical isolation of the data transmission cable 31, effectively blocking the extension of external flames into the electricity meter, and protecting the safety of internal data.

[0055] Example 4:

[0056] Based on Embodiment 3, as shown in the accompanying drawings of the specification. Figure 2-9 As shown, the cutting blade 51 includes a fixing plate 511 and a cutting edge 512. The fixing plate 511 is fixedly installed at the bottom of the telescopic device 52. The bottom of the fixing plate 511 contacts the side wall of the adjacent control chamber 22, and the part of the bottom of the fixing plate 511 that contacts the side wall of the control chamber 22 is an insulating part 513. The insulating part 513 of the fixing plate 511 can be made of insulating rubber and the surface is smoothed. In this way, during the downward movement of the fixing plate 511, the insulating part 513 can move down along the side wall of the control chamber 22 and act as a barrier to the inlet hole 222 after cutting the data transmission wire 31.

[0057] The blade 512 is installed at the bottom of the fixed plate 511, and a semi-circular groove 514 is provided at the end of the blade 512 corresponding to the limiting groove 531. The semi-circular groove 514 can further limit the data transmission wire 31 to be cut, and a cutting blade 515 is provided inside the semi-circular groove 514.

[0058] Furthermore, the cutting blades 515 located in the semi-circular groove 514 are symmetrically arranged. The cutting edge of the bottom of the cutting blade 515 is inclined to the horizontal plane, and an acute angle is formed between the cutting edges of the two cutting blades 515 on both sides. The distance between the cutting edges of the two cutting blades 515 on both sides gradually decreases from bottom to top. The cutting edge of the cutting blade 515 is uniformly provided with serrated protrusions. In addition, both the blade 512 and the cutting blade 515 here are made of ceramic cutting tool material to avoid the influence of the conductivity of metal cutting tools on the cutting of the data transmission wire 31.

[0059] Specific workflow: Based on the specific workflow in Embodiment 3, when the cutting blade 51 moves downward, the fixing plate 511 stabilizes the blade 512. After the blade 512 is pushed down and contacts the data transmission cable 31, the semi-circular groove 514 at the end of the blade 512 first contacts the part of the data transmission cable 31 located in the limiting groove 531. This further limits the part of the data transmission cable 31 to be cut under the cooperation of the limiting groove 531 and the semi-circular groove 514, ensuring that the data transmission cable 31 remains stable during the cutting process. Subsequently, the data transmission line 31 comes into contact with the cutting blade 515 located in the semi-circular groove 514. The parts of the cutting blades 515 on both sides that come into contact with the data transmission line 31 are inclined and tilted towards each other. As the cutting blades 515 move down, the data transmission line 31 is sheared and tightened by the cutting action of the cutting blades 515 on both sides. At the same time, the sharp serrations on the cutting blades 515 can accelerate the breaking of the outer skin of the data transmission line 31 during the contact process, making the cutting process smoother and ensuring that the data transmission line 31 is completely cut.

[0060] Furthermore, as the cutting blade 51 continues to move downward, the blade 512 is fully embedded in the cutting groove 532, and at this time, the bottom of the fixing plate 511 contacts the top of the support 53. At this time, the insulating part 513 on the surface of the fixing plate 511 is in close contact with the part of the inlet hole 222 located above the cutting groove 532, while the part of the inlet hole 222 located below the cutting groove 532 is blocked by the blade 512 embedded in the cutting groove 532. This further seals the inlet hole 222, preventing flame smoke and various debris generated during the accident from entering the inside of the electricity meter through the inlet hole 222, causing damage to the internal electronic components, and ensuring the safety of the electricity meter's backup stored data.

[0061] Example 5:

[0062] Based on Embodiment 4, as shown in the accompanying drawings of the specification. Figure 2-7 , Figure 10 As shown, the support platform 53 includes a stabilizing part 533 and a disengaging part 534. The stabilizing part 533 is plate-shaped and is fixedly connected to the side wall of the corresponding control room 22. The gap between the stabilizing part 533 and the disengaging part 534 forms a cutting groove 532. The stabilizing part 533 and the disengaging part 534 are fixed together by a connector. There are many possible implementations of the connector here.

[0063] The bottom of the control room 22 is provided with a release plate 535, the wire hole 221 is located on the release plate 535, and the release plate 535 is fixedly connected to the bottom of the release part 534, forming a plate structure with an L-shaped cross section.

[0064] Specific workflow: Based on the specific workflow in Example 4, when the fire is large, the flames extend along the data transmission line 31 and are difficult to control. Even if the fire is cut off, the high temperature brought by the extension of the fire may cause the temperature of the control room 22 to rise, thereby threatening the safety of the electronic components inside the electricity meter. Therefore, in dangerous situations, the connector is released from its fixed position, so that the detachment part 534 and the detachment plate 535 lose their fixed position and fall off under their own gravity. On the one hand, the end of the data transmission line fixed in the wire hole 221 that is connected to the outside is pulled down synchronously and detached from the electricity meter, further preventing the flames from extending along the data transmission line into the electricity meter.

[0065] On the other hand, this increases the opening at the bottom of the control room 22, thereby increasing the output power of the gas extinguishing system. This allows the extinguishing gas to flow out of the safety pipe 23 and the control room 22 more quickly, thus playing a role in extinguishing fire and retardant fire. At the same time, the flowing air accelerates the heat loss inside the control room 22 as it passes through it, thereby cooling the electricity meter and further ensuring the safety of the electronic components inside the electricity meter and the safety of its storage.

[0066] Example 6:

[0067] Based on Embodiment 5, as shown in the accompanying drawings of the specification. Figure 4 , Figure 6 As shown, in this embodiment, the connecting member is a fixed electromagnet 536. The fixed electromagnet 536 is located inside the cutting groove 532 on the side wall corresponding to the stabilizing part 533 and is fixedly connected to the side wall of the stabilizing part 533. The detachment part 534 is made of iron inside the cutting groove 532 and is in close contact with the fixed electromagnet 536. When the fixed electromagnet 536 is activated, it generates magnetic force to attract the detachment part 534, thereby achieving relative fixation between the detachment part 534 and the stabilizing part 533.

[0068] Specific workflow: Based on the specific workflow in Example 5, when it is necessary to disconnect the disconnection part 534 and the disconnection plate 535, simply de-energizing the fixed electromagnet 536 is sufficient to disconnect the disconnection part 534 and the disconnection plate 535 from the electricity meter. In factories with many electrical devices, the level of security system completeness and the severity of accidents vary. In environments with complete security systems, a sufficiently strong gas extinguishing system can ensure that the extinguishing air flowing in after disconnection part 534 and the disconnection plate 535 is disconnected, thus ensuring the safety of the control room 22. However, in working environments with incomplete security systems, or even without a gas extinguishing system, in the event of a minor accident, it is only necessary to cut off the data transmission wire 31. It is not necessary to disconnect the disconnection part 534 and the disconnection plate 535. Retaining the disconnection part 534 and the disconnection plate 535 can provide protection for the interior of the control room 22. Therefore, using the fixed electromagnet 536 as a connector allows for more intelligent and flexible adjustment of different modes to cope with different working environments and accidents, improving applicability.

[0069] Example 7:

[0070] Based on Embodiment 5, as shown in the accompanying drawings of the specification. Figure 5 , Figure 7 As shown, unlike Embodiment Six, the connector in this embodiment uses a fixing rope 537, which is located inside the cutting groove 532 and directly below the limiting groove 531. While the method of using a fixing electromagnet 536 in Embodiment Six improves the intelligence level, it also requires power supply and control for the fixing electromagnet 536, increasing cost and structural complexity. This method is suitable for working environments with concentrated electrical equipment, but not for home work environments, because there are usually fewer electrical devices in home environments, and the possible accidents are usually less serious. Therefore, this embodiment uses the method of cutting the data transmission wire 31 and removing the disconnection part 534 and the disconnection plate 535 at the same time.

[0071] Specific Workflow: Based on the specific workflow in Example 5, because users in home work environments often have low technical skills and are unable to perform technical maintenance and replace consumable parts, the probability of the electricity meter itself being damaged during long-term use increases. In this case, when the electricity meter itself is overloaded, the data transmission line 31 can be cut off through the intelligent control terminal to avoid adverse effects on external electrical equipment. While the cutting blade 515 cuts the data transmission line 31, it moves down to cut the fixing rope 537. At the same time, the detachment part 534 and the detachment plate 535 detach in time. On the one hand, this creates a large noise to remind the user to notice and deal with the accident in time; on the other hand, after detachment, the bottom of the control room 22 opens, allowing the dense smoke and heat generated inside the electricity meter due to overload damage to be discharged in time, reducing the degree of damage. In the event of a severe overload and open flame, only the inlet hole 222 is connected, making it difficult for the flame to enter the control room 22 and spread to the outside, providing the user with a longer reaction time to control the accident in time and reduce losses.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electronic energy meter with data collection function, comprising a meter case (1), a meter cover (2), a data collection unit (3), a data display unit (4), and a safety unit, wherein the meter cover (2) is bolted to the meter case (1), and the bottom of the meter cover (2) protrudes to form a protrusion (21), and the data collection unit (3) is installed inside the protrusion (21); the data collection unit (3) comprises a data collector and a data transmission wire (31), the data collector is installed inside the protrusion (21), and the data collector is connected to an external circuit through the data transmission wire (31); The data display unit (4) is connected to the data collector and is used to process the data collected by the data collector and display it on the electronic display screen (24) installed on the cover (2); the safety unit includes an alarm and an automatic power-off module (5), the alarm is used to automatically alarm when the circuit is unstable, and the automatic power-off module (5) automatically cuts off the circuit after the alarm is triggered, characterized in that: The protrusion (21) has a control chamber (22) inside. The bottom of the control chamber (22) is provided with wire holes (221) and communicates with the outside. The side wall of the control chamber (22) is provided with inlet holes (222) at the corresponding part of the wire holes (221). The inlet holes (222) communicate with the inside of the watch case (1). The data transmission wire (31) connected to the outside line is introduced from the wire holes (221) and passes through the inlet holes (222) to enter the inside of the watch case (1). The automatic power-off module (5) includes a cutting blade (51), which is installed at the bottom of the control room (22), and a telescopic device (52) is installed between the cutting blade (51) and the top of the control room (22). The cutting blade (51) is used to cut the data transmission line (31). A support platform (53) is provided on the side wall of the control room (22) below the inlet hole (222). A limiting groove (531) is provided on the top of the support platform (53) corresponding to the data transmission cable (31), and the part of the data transmission cable (31) corresponding to the limiting groove (531) is embedded in the limiting groove (531). The top of the support (53) is provided with a cutting groove (532) at the part corresponding to the bottom of the cutting blade (51); The cutting blade (51) includes a fixing plate (511) and a blade (512). The fixing plate (511) is fixedly installed at the bottom of the telescopic device (52). The bottom of the fixing plate (511) contacts the adjacent side wall of the control chamber (22), and the part of the bottom of the fixing plate (511) that contacts the side wall of the control chamber (22) is an insulating part (513). The blade (512) is installed at the bottom of the fixing plate (511), and a semi-circular groove (514) is provided at the end of the blade (512) corresponding to the limiting groove (531), and a cutting blade (515) is provided inside the semi-circular groove (514). The cutting blades (515) located in the semi-circular groove (514) are symmetrically arranged, and the cutting edge portion at the bottom of the cutting blade (515) is inclined to the horizontal plane; the cutting edge portion of the cutting blade (515) is uniformly provided with serrated protrusions. The support platform (53) includes a stabilizing part (533) and a disengaging part (534). The gap between the stabilizing part (533) and the disengaging part (534) forms a cutting groove (532). The stabilizing part (533) and the disengaging part (534) are fixed together by a connector. The bottom of the control room (22) is provided with a release plate (535), the wire hole (221) is located on the release plate (535), and the release plate (535) is fixedly connected to the bottom of the release part (534); The connector is a fixed electromagnet (536), which is located inside the cutting groove (532) on the side wall corresponding to the stabilizing part (533); the detachment part (534) is made of iron inside the cutting groove (532) and is in close contact with the fixed electromagnet (536).

2. An electronic energy meter with data acquisition function according to claim 1, characterized in that: The control room (22) is connected to the gas extinguishing system installed outside the room through a safety pipe (23).

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