Intelligent safe power utilization device

Abstract

The invention relates to the field of power equipment, in particular to an intelligent safe power utilization device which comprises a circuit breaker arranged in a cabinet body, the circuit breaker is provided with a plurality of wire inlet ends and a conductive flat cable connected with the wire inlet ends and mains supply, the conductive flat cable is provided with a groove, and the groove is provided with at least one notch communicated with the outside. The conductive flat cable is composed of an outer conductive plate and an inner conductive plate attached to the inner side wall of the outer conductive plate, and the thermal expansion coefficient of the inner conductive plate is larger than that of the outer conductive plate. An isolation plate fixed in the cabinet body, wherein the isolation plate is provided with assembling holes corresponding to the conductive flat cables; the movable parts are in sliding connection with the rotating matching holes, the front ends of the movable parts are provided with end heads made of insulating materials, when the conductive flat cables are not expanded, gaps are formed between the side faces of the end heads and the edges of the notches, and at the moment, the rear end faces of the movable parts located on the same side of the isolation plate are located on the same plane. According to the invention, the overheated conductive flat cable can be quickly judged, so that the maintenance time is saved.

Description

Technical Field

[0001] The present invention relates to the field of electric power equipment, and in particular to an intelligent and safe electricity-using device. Background Art

[0002] In modern society, the stability and safety of power supply are crucial for all aspects of production and daily life. As key equipment for power distribution and control, the health of the busbars and conductive cables within electrical cabinets is directly related to the reliability of the entire power supply system. Therefore, circuit breakers, as a common circuit protection device, are widely used in electrical cabinets. In the event of an overload or short circuit, they can promptly disconnect the circuit, thereby protecting the cabinet.

[0003] Existing technologies typically monitor line status in real time using temperature sensors (such as thermistors and infrared probes) or current detection modules. When the temperature or current exceeds a threshold, a relay or circuit breaker is triggered to trip, quickly shutting off power. For example, smart safety sockets use embedded temperature sensors and an MCU to control on and off, and mining protection devices can interrupt current within 0.01 seconds to suppress arcing. While these technologies can instantly block faults, they have significant limitations. Once the temperature returns to normal, the device automatically resets (e.g., a self-resetting air switch), failing to retain overload history information. This makes it difficult for maintenance personnel to quickly locate the faulted line. In the context of smart grid development, this lack of fault tracing capabilities severely restricts the intelligent operation and maintenance efficiency of the distribution system. Furthermore, electronic sensors are prone to failure in strong magnetic fields or humid environments (e.g., false chip tripping). Especially in unmanned distribution cabinets, tracing the source of overheating after a fault reset is difficult, necessitating a full line inspection. This not only significantly increases repair time and costs, but also results in a double waste of human and power resources, violating the energy-saving and efficiency-enhancing goals of smart grids. Furthermore, to improve protection accuracy, some existing designs attempt to employ independent circuit breakers for each phase line. However, when multiple circuit breakers are connected in parallel, the operating sequence is difficult to synchronize, potentially causing phase-to-phase current imbalance and increasing the risk of equipment damage. Such complex electronic solutions require additional power supply and regular maintenance, which conflicts with the low-power and maintenance-free design requirements of smart grid terminal equipment, making it difficult to achieve cost savings for large-scale deployment. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to propose an intelligent safe electricity device to solve the technical problem in the prior art that when the lines in the distribution cabinet are overloaded or short-circuited, it is difficult for maintenance personnel to quickly determine the faulty line after the circuit breaker is activated.

[0005] Based on the above objectives, the present invention provides an intelligent safe electricity device, including a circuit breaker arranged in a cabinet, the circuit breaker having multiple incoming terminals, and the device further comprising: A conductive cable connecting the incoming line terminal to the mains, the conductive cable having a groove with at least one notch communicating with the outside. The conductive cable comprises an outer conductive plate and an inner conductive plate attached to the inner sidewall of the outer conductive plate. The thermal expansion coefficient of the inner conductive plate is greater than that of the outer conductive plate, so that when the combined cable is heated, the inner conductive plate expands within the groove, gradually closing the notch. An isolation plate fixed in the cabinet, wherein the isolation plate is provided with assembly holes corresponding to the conductive cables; A movable part is slidably connected to the assembly hole, and the front end of the movable part is provided with an end head made of insulating material. The end head extends into the groove through the notch, and the end head is tapered. When the conductive cable is not expanded, there is a gap between the side surface of the end head and the edge of the notch, and at this time, the rear end surface of the movable part located on the same side of the isolation plate is located on the same plane.

[0006] Furthermore, the device further comprises: A rotating sleeve corresponding to the movable member, one end of the rotating sleeve being rotatably connected to the front side surface of the isolation plate, and the central axis of the central hole of the rotating sleeve being collinear with the central axis of the corresponding assembly hole, and the movable member passing through the central hole of the corresponding rotating sleeve; A guide pin fixed to the side surface of the movable member, an arc-shaped guide groove being provided on the inner side surface of the central hole of the rotating sleeve, the guide pin being slidably connected to the arc-shaped guide groove so as to drive the movable member to rotate when the movable member slides along the assembly hole; An indicator member is provided on the movable member, and is used to indicate that the movable member rotates.

[0007] Furthermore, the device further comprises a positioning member having one end fixed to the isolation plate, the positioning member being provided with a rotation hole, the movable member being rotationally connected to the rotation hole, a baffle being provided at the front end of the positioning member, the vertical plate being fixedly connected to the positioning member, and a rotation space being formed between the baffle and the positioning member; The indicator is a color plate fixed to the side surface of the movable part. The color plate is located in the rotating space and is evenly divided into a plurality of sector-shaped areas. The color of each sector-shaped area is different. The vertical plate is provided with an observation port for observing the rotating space. The shape of the observation port is the same as that of the fan-shaped area, and the observation port is located right in front of the color mark plate.

[0008] Furthermore, the color label is divided into three sector-shaped areas, and the colors of the three sector-shaped areas are green, yellow and red in sequence.

[0009] Furthermore, the device also includes a first spring sleeved on the movable member, one end of the first spring is fixed to the isolation plate, and the other end of the first spring is fixed to the front end of the movable member.

[0010] Furthermore, an isolation ring for shielding the notch is provided near the front end of the movable part, and both the isolation ring and the movable part are made of insulating material.

[0011] Furthermore, the groove is a U-shaped structure, and the notch is an opening of the U-shaped structure.

[0012] Furthermore, the groove is a V-shaped structure, and the notch is located at the opening of the V-shaped structure.

[0013] Furthermore, the device further comprises: an extension plate fixed to the positioning member, wherein the extension plate is provided with pin holes penetrating the upper and lower surfaces thereof; a movable pin slidably connected to the pin hole, wherein the bottom end of the movable pin is provided with a pulling end, and the pulling end is located below the extension plate; a limit block fixed to the top of the movable pin and a second spring sleeved on the movable pin, one end of the second spring being fixed to the bottom of the limit block and the other end of the second spring being fixed to the upper surface of the extension plate; The side surface of the movable part located below is provided with multiple inclined grooves along its central axis, and adjacent inclined grooves are connected end to end. The inclined groove includes a first inclined surface and a second inclined surface. The angle between the first inclined surface and the second inclined surface is the vertex angle. The first inclined surface is close to the isolation plate, and the angle between the first inclined surface and the horizontal plane where the vertex angle is located is an oblique angle. The oblique angle is an acute angle, and the sum of the oblique angle and the vertex angle is less than or equal to 90 degrees. The top of the limit block is adapted to the oblique groove.

[0014] Furthermore, the device also includes a heat insulation plate provided between adjacent conductive wires, and the heat insulation plate is fixed on the isolation plate.

[0015] Beneficial effects of the present invention: When an intelligent safety electrical device of the present invention is used, during the normal operation of an electrical appliance in a cabinet, the conductive cable will generate a certain amount of heat due to the flow of current, and the inner conductive plate will expand to a certain extent. However, due to the gap between the side surface of the end and the edge of the recess, during this process, the expansion of the inner conductive plate is not enough to fill the gap, and therefore the movable parts cannot be driven. In this way, the rear end surfaces of all movable parts remain on the same plane. When the circuit where one or more conductive cables are located overheats, the temperature of the conductive cable will rise rapidly. Since the thermal expansion coefficient of the inner conductive plate is greater than that of the outer conductive plate, the expansion degree of the inner conductive plate will be greater than that of the outer conductive plate, thereby having a tendency to close the recess. During the recess closing process, the inner conductive plate first fills the gap and then gradually squeezes the end. The end pushes the movable part, thereby driving the movable part to move in the direction away from the notch. When the conductive cable is disconnected due to overheating, it takes a long time for maintenance personnel to reach the cabinet. During this period, the temperature of the line where the conductive cable is located is likely to return to normal, but the maintenance personnel can quickly determine the overheated line by observing the position of the movable part, thereby saving maintenance time. In addition, the mechanical thermal expansion trigger mechanism of the present invention is essentially an embedded physical intelligence. Through the difference in expansion coefficients of the inner / outer conductive plates and the displacement amplification structure of the movable part, the line temperature rise is directly converted into a visual mechanical signal. This process does not require external power supply and signal processing circuits. After the circuit breaker trips and causes power failure in the cabinet, the fault status record can still be maintained through the mechanical self-locking structure, realizing passive perception of all working conditions and providing reliable physical evidence for subsequent intelligent diagnosis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the partial structure of the air switch, bimetallic strip, and isolation plate in the present invention; Figure 3 It is a rear view of the partial structure of the bimetallic strip, isolation ring and isolation plate of the present invention; Figure 4 It is a rear view of the partial structure of the bimetallic strip, the isolation plate and the first spring of the present invention; Figure 5 It is an exploded schematic diagram of the local structures such as the movable parts, arc-shaped guide grooves and inclined grooves in the present invention; Figure 6 This is an exploded schematic diagram of the local structures of the bimetallic strip, isolation ring, and observation port in the present invention; Figure 7 It is an exploded schematic diagram of the local structures of the present invention, such as the guide pin, the arc guide groove and the color label; Figure 8 It is a cross-sectional schematic diagram of the local structure of the bimetallic strip, isolation ring and positioning member in the present invention; Figure 9 For the present invention Figure 8 A schematic diagram of the structure at center A; Figure 10 It is a bottom view schematic diagram of the local structures such as the movable parts, inclined slots and inclined blocks in the present invention; Figure 11 It is a schematic cross-sectional view of the local structures such as the movable parts, top angles and bevel angles in the present invention.

[0018] The following are marked in the figure: 1. Cabinet; 2. Circuit breaker; 3. Isolation plate; 4. Conductive cable; 5. Movable part; 501. Guide pin; 502. Isolation ring; 6. Rotating sleeve; 601. Arc guide groove; 7. Positioning piece; 701. Observation port; 8. Color code plate; 9. First spring; 10. Inclined groove; 11. Extension plate; 12. Movable pin; 13. Limit block; 14. Second spring; 15. Heat insulation board; 16. Top angle; 17. Bevel angle. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to specific embodiments.

[0020] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0021] The first aspect of the present invention provides an intelligent and safe electricity device, such as Figure 1-11As shown, the device includes a circuit breaker 2 provided in a cabinet 1, the circuit breaker 2 is provided with multiple incoming terminals, and the device further includes: A conductive cable 4 connects the incoming line terminal to the mains. The conductive cable 4 has a groove with at least one notch connected to the outside. The conductive cable 4 is composed of an outer conductive plate and an inner conductive plate attached to the inner sidewall of the outer conductive plate. The thermal expansion coefficient of the inner conductive plate is greater than that of the outer conductive plate. When the conductive cable 4 is heated, the inner conductive plate expands within the groove, gradually closing the notch. An isolation plate 3 fixed in the cabinet 1 is provided with mounting holes corresponding to the conductive cables 4; The movable part 5 is slidably connected to the assembly hole, and the front end of the movable part 5 is provided with an end made of insulating material. The end extends into the groove through the notch, and the end is tapered. When the conductive cable 4 is not expanded, there is a gap between the side of the end and the edge of the notch. At this time, the rear end surface of the movable part 5 located on the same side of the isolation plate 3 is located on the same plane.

[0022] During normal operation of the electrical appliances in the cabinet 1, the conductive cable 4 will generate a certain amount of heat due to the flow of current, and the inner conductive plate will expand to a certain extent. However, due to the gap between the side of the end and the edge of the notch, the expansion of the inner conductive plate is not enough to fill the gap during this process, and therefore the movable part 5 cannot be driven. In this way, the rear end faces of all movable parts 5 remain on the same plane. When the circuit where one or more conductive cables 4 are located overheats, the temperature of the conductive cable 4 will rise rapidly. Since the thermal expansion coefficient of the inner conductive plate is greater than that of the outer conductive plate, the expansion degree of the inner conductive plate will be greater than that of the outer conductive plate, thereby tending to close the notch. During the closing process of the notch, the inner conductive plate first fills the gap and then gradually squeezes the end, causing the end to push the movable part 5, thereby The movable part 5 is driven to move in a direction away from the notch. When the circuit breaker 2 is tripped due to overheating of the conductive cable, it takes a long time for maintenance personnel to reach the cabinet 1. During this time, the temperature of the line where the conductive cable 4 is located is likely to return to normal. However, the maintenance personnel can quickly determine the overheated line by observing the position of the movable part 5, thereby saving maintenance time. In addition, the mechanical thermal expansion trigger mechanism of the present invention is essentially an embedded physical intelligence. Through the difference in expansion coefficients of the inner and outer conductive plates and the displacement amplification structure of the movable part, the line temperature rise is directly converted into a visual mechanical signal. This process does not require external power supply and signal processing circuits. After the circuit breaker trips and causes power loss in the cabinet, the fault status can still be recorded through the mechanical self-locking structure, realizing passive sensing of all working conditions and providing reliable physical evidence for subsequent intelligent diagnosis. By using metal expansion physical triggering, it is completely immune to electromagnetic interference and is suitable for strong electromagnetic scenarios such as frequency conversion cabinets. It eliminates the existing temperature sensors, power supply modules and signal processing systems, reducing BOM costs by more than 30%. It is maintenance-free throughout its life cycle and is especially suitable for harsh industrial scenarios such as mining and chemical industries.

[0023] Here, it is preferred to set a wireless displacement sensor directly behind the rear end face of each movable part 5 to monitor the displacement of the movable part 5 in real time, and upload the displacement to the cloud platform, combine AI to analyze the historical temperature rise curve, and realize fault prediction.

[0024] In this embodiment: the device further includes: A rotating sleeve 6 corresponding to the movable member 5, one end of the rotating sleeve 6 is rotatably connected to the front side of the isolation plate 3, and the central axis of the central hole of the rotating sleeve 6 is collinear with the central axis of the corresponding assembly hole, and the movable member 5 passes through the central hole of the corresponding rotating sleeve 6; A guide pin 501 is fixed to the side surface of the movable member 5, and an arc-shaped guide groove 601 is provided on the inner side surface of the central hole of the rotating sleeve 6. The guide pin 501 is slidably connected to the arc-shaped guide groove 601 to drive the rotating sleeve 6 to rotate when the movable member 5 slides along the assembly hole; The indicator is provided on the rotating sleeve 6 and is used to indicate that the rotating sleeve 6 is rotating.

[0025] When the notch closes and gradually squeezes the end to make the movable part 5 slide, the guide pin 501 on its side moves along the arc guide groove 601 of the rotating sleeve 6, converting the linear displacement into the rotational movement of the rotating sleeve 6. The indicator on the rotating sleeve 6 rotates with the rotating sleeve 6 to display the status. The mechanical signal conversion is realized through the compact structure, which adapts to the narrow space, and the temperature status is quantified by the rotation angle, thereby improving the warning accuracy.

[0026] In this embodiment, the device further includes a positioning member 7 fixed at one end to the isolation plate 3. The positioning member 7 is provided with a rotating hole, and the rotating sleeve 6 is rotatably connected to the rotating hole. A baffle is provided at the front end of the positioning member 7, and the baffle is fixedly connected to the positioning member 7. A rotation space is formed between the baffle and the positioning member 7. The indicator is a color plate 8 fixed to the side surface of the rotating sleeve 6. The color plate 8 is located in the rotating space and is evenly divided into a number of sector-shaped areas, each of which has a different color. The baffle is provided with an observation port 701 for observing the rotating space. The shape of the observation port 701 is the same as that of the sector-shaped area, and the observation port 701 is located right in front of the color label 8 .

[0027] In this embodiment, the color label 8 is divided into three sector-shaped areas, and the colors of the three sector-shaped areas are green, yellow and red in sequence.

[0028] When the rotating sleeve 6 drives the color label 8 to rotate in the rotating space, a specific sector-shaped area (such as green / yellow / red) is exposed through the observation port 701 of the baffle. The color change indicates the temperature rise level, allowing operation and maintenance personnel to identify the risk level by color from a distance (green: normal; yellow: warning; red: danger), and the observation port 701 matches the sector-shaped area to avoid misreading of colors. In addition, an external camera can be used to aim the lens at the position of the color label 8, and the changes of the color label 8 can be monitored in real time from the monitoring room, which meets the needs of smart factories.

[0029] In this embodiment, the device further includes a first spring 9 sleeved on the movable member 5 , one end of the first spring 9 is fixed to the isolation plate 3 , and the other end of the first spring 9 is fixed to the front end of the movable member 5 .

[0030] Since both ends of the first spring 9 are fixed to the isolation plate 3 and the front end of the movable member 5 respectively, a pre-tightening force is provided under normal conditions to move the tapered end of the movable member 5 into the groove of the conductive cable 4, ensuring real-time thermal expansion response; It should also be noted that the elastic coefficient of the first spring 9 is much smaller than the thrust of the conductive cable 4 when it is deformed by heat. When the conductive cable 4 is deformed, the first spring 9 is insufficient to limit the conductive cable 4 from pushing the movable part 5 to move. When the conductive cable 4 is deformed and pushes the movable part 5 to move, the first spring 9 is in a compressed state.

[0031] In this embodiment, a spacer ring 502 is provided near the front end of the movable member 5 to shield the notch. Both the spacer ring 502 and the movable member 5 are made of insulating material. As the movable member 5 moves, the spacer ring 502 moves with it. During the closing process, the notch opens and the insulating material blocks the path for air ionization, providing insulation protection.

[0032] In this embodiment, the groove is a U-shaped structure, and the notch is the opening of the U-shaped structure.

[0033] In this embodiment, the groove is a V-shaped structure, with the notch located at the opening of the V-shaped structure. The corners of the V-shaped conductive cable 4 are rounded to reduce shear stress when the conductive cable 4 is deformed by heat, thereby increasing its service life.

[0034] The groove adopts a U-shaped or V-shaped structure, with the notch as an open end. When the inner conductive plate expands, the two side walls of the U-shaped groove close inward, and the angle of the V-shaped groove decreases, thereby narrowing the notch to adapt to different space layout requirements.

[0035] In this embodiment: the device further includes: An extension plate 11 fixed to the positioning member 7, the extension plate 11 having pin holes extending through its upper and lower surfaces; A movable pin 12 slidably connected to the pin hole, wherein the bottom end of the movable pin 12 is provided with a pulling end, and the pulling end is located below the extension plate 11; A limit block 13 fixed to the top of the movable pin 12 and a second spring 14 sleeved on the movable pin 12, one end of the second spring 14 is fixed to the bottom of the limit block 13, and the other end of the second spring 14 is fixed to the upper surface of the extension plate 11; The lower side surface of the movable part 5 is provided with a plurality of inclined grooves 10 along its central axis, and adjacent inclined grooves 10 are connected end to end. The inclined groove 10 includes a first inclined surface and a second inclined surface. The angle between the first inclined surface and the second inclined surface is a vertex angle 16. The first inclined surface is close to the isolation plate 3, and the angle between the first inclined surface and the horizontal plane where the vertex angle 16 is located is an inclined angle 17. The inclined angle 17 is an acute angle, and the sum of the inclined angle 17 and the vertex angle 16 is less than or equal to 90 degrees. The top of the limit block 13 is adapted to the inclined groove 10.

[0036] When the deformation of the conductive cable 4 pushes the movable part 5 to move, the inclined surface of the limit block 13 below the movable part 5 is squeezed by the inclined surface of the inclined slot 10 at the bottom of the movable part 5, causing the limit block 13 to move downward, and the second spring 14 to contract under the force. When the conductive cable 4 pushes the movable part 5 to stop, the second spring 14 elastically returns to its original position, pushing the limit block 13 to move upward and be inserted into the corresponding inclined slot 10, thereby limiting the movement and reset of the movable part 5 and realizing unidirectional movement of the movable part 5. When the movable part 5 needs to be reset, it is necessary to manually pull down the pulling end of the movable pin 12 to disengage the limit block 13 from the inclined slot 10 to reset it, and under the elastic reset of the first spring 9, the movable part 5 moves and resets; so as to achieve mechanical self-locking in the overheating state and avoid misreading caused by automatic reset of the movable part 5; In addition, it should be noted that since the sum of the oblique angle 17 and the top angle 16 is less than or equal to 90 degrees, the limit block 13 is ensured to be unidirectionally engaged to prevent it from being released; Furthermore, the elastic coefficient of the second spring 14 is much smaller than the thrust of the conductive cable 4 when it is deformed by heat. When the conductive cable 4 is deformed, the second spring 14 is insufficient to prevent the conductive cable 4 from pushing the movable member 5 to move. Compared with the existing electronic sensor solution, the electronic sensor requires an additional power supply line and may lose power after the circuit breaker trips, thus losing the fault recording ability. In this application, the expansion energy of the internal conductive plate is used to drive the movable part 5 to move. After tripping, the position of the movable part 5 is still locked through the cooperation of the inclined slot 10 and the limit block 13, and the displacement state is physically maintained. The maintenance personnel can lock the fault line based on the position deviation of the rear end face of the movable part 5 of 0 seconds, without the need to review historical data, and realize completely passive continuous recording.

[0037] In this embodiment, the device further includes a heat shield 15 disposed between adjacent conductive cables 4. The heat shield 15 is fixed to the isolation plate 3. The heat shield 15 blocks the heat radiation conduction between adjacent conductive cables 4, preventing thermal interference between multiple cables and ensuring that each cable responds only to its own temperature rise.

[0038] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Within the scope of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0039] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An intelligent safe electricity device, comprising a circuit breaker (2) arranged in a cabinet (1), wherein the circuit breaker (2) is provided with a plurality of incoming terminals, characterized in that: The device further comprises: A conductive cable (4) connecting an incoming line terminal and a mains power supply, the conductive cable (4) having a groove, and the groove having at least one notch communicating with the outside, the conductive cable (4) consisting of an outer conductive plate and an inner conductive plate attached to the inner side wall of the outer conductive plate, the thermal expansion coefficient of the inner conductive plate being greater than the thermal expansion coefficient of the outer conductive plate, so that after the conductive cable (4) is heated, the inner conductive plate expands in the groove due to the heat, gradually closing the notch; An isolation plate (3) fixed in the cabinet (1), wherein the isolation plate (3) is provided with an assembly hole corresponding to the conductive cable (4); A movable member (5) is slidably connected to the assembly hole, and a terminal head made of insulating material is provided at the front end of the movable member (5). The terminal head extends into the groove through the notch, and the terminal head is tapered. When the conductive cable (4) is not expanded, there is a gap between the side of the terminal head and the edge of the notch, and at this time, the rear end faces of the movable member (5) located on the same side of the isolation plate (3) are located on the same plane.

2. The intelligent safe electricity device according to claim 1, characterized in that: The device further comprises: A rotating sleeve (6) corresponding to the movable member (5), one end of the rotating sleeve (6) being rotatably connected to the front side of the isolation plate (3), and the central axis of the central hole of the rotating sleeve (6) being collinear with the central axis of the corresponding assembly hole, and the movable member (5) passing through the central hole of the corresponding rotating sleeve (6); A guide pin (501) is fixed to the side surface of the movable member (5), and an arc-shaped guide groove (601) is provided on the inner side surface of the central hole of the rotating sleeve (6). The guide pin (501) is slidably connected to the arc-shaped guide groove (601) to drive the rotating sleeve (6) to rotate when the movable member (5) slides along the assembly hole; An indicator is provided on the rotating sleeve (6), and is used to indicate that the rotating sleeve (6) is rotating.

3. The intelligent safe electricity device according to claim 2, characterized in that: The device further comprises a positioning member (7) with one end fixed on the isolation plate (3), the positioning member (7) being provided with a rotation hole, the rotating sleeve (6) being rotatably connected to the rotation hole, a baffle being provided at the front end of the positioning member (7), the baffle being fixedly connected to the positioning member (7), and a rotation space being formed between the baffle and the positioning member (7); The indicator is a color plate (8) fixed to the side surface of the rotating sleeve (6), the color plate (8) is located in the rotating space, and the color plate (8) is evenly divided into a plurality of sector-shaped areas, and the color of each sector-shaped area is different; The baffle is provided with an observation port (701) for observing the rotation space. The shape of the observation port (701) is the same as the shape of the sector area, and the observation port (701) is located directly in front of the color label (8).

4. The intelligent safe electricity device according to claim 3, characterized in that: The color label (8) is evenly divided into three sector-shaped areas, and the colors of the three sector-shaped areas are green, yellow and red in sequence.

5. An intelligent safe electricity device according to any one of claims 1 to 4, characterized in that: The device further comprises a first spring (9) sleeved on the movable member (5), one end of the first spring (9) being fixed to the isolation plate (3), and the other end of the first spring (9) being fixed to the front end of the movable member (5).

6. The intelligent safe electricity device according to claim 5, characterized in that: The movable part (5) is provided with an isolation ring (502) for shielding the notch near the front end thereof, and both the isolation ring (502) and the movable part (5) are made of insulating material.

7. The intelligent safe electricity device according to claim 6, characterized in that: The groove is a U-shaped structure, and the notch is the opening of the U-shaped structure.

8. The intelligent safe electricity device according to claim 6, characterized in that: The groove is a V-shaped structure, and the notch is located at the opening of the V-shaped structure.

9. An intelligent safe electricity device according to claim 7 or 8, characterized in that: The device further comprises: an extension plate (11) fixed to the positioning member (7), wherein the extension plate (11) is provided with pin holes penetrating the upper and lower surfaces thereof; a movable pin (12) slidably connected to the pin hole, wherein the bottom end of the movable pin (12) is provided with a pulling end, and the pulling end is located below the extension plate (11); A limit block (13) fixed to the top of the movable pin (12) and a second spring (14) sleeved on the movable pin (12), one end of the second spring (14) being fixed to the bottom of the limit block (13), and the other end of the second spring (14) being fixed to the upper surface of the extension plate (11); The side surface of the movable part (5) located below is provided with a plurality of inclined grooves (10) along its central axis, and adjacent inclined grooves (10) are connected end to end, the inclined groove (10) includes a first inclined surface and a second inclined surface, the angle between the first inclined surface and the second inclined surface is a vertex angle (16), the first inclined surface is close to the isolation plate (3), and the angle between the first inclined surface and the horizontal plane where the vertex angle (16) is located is an inclined angle (17), the inclined angle (17) is an acute angle, and the sum of the inclined angle (17) and the vertex angle (16) is less than or equal to 90 degrees, and the top of the limit block (13) is adapted to the inclined groove (10).

10. The intelligent safe electricity device according to claim 9, characterized in that: The device further comprises a heat insulation plate (15) disposed between adjacent conductive wirings (4), wherein the heat insulation plate (15) is fixed on the isolation plate (3).

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