A method for monitoring faults in a power control cabinet and a device for monitoring faults in a power component

Abstract

The present invention is applicable to the technical field of fault monitoring of electrical cabinets, and provides a method for monitoring faults in an electric power control cabinet and a monitoring device for electric power components, including an electric power cabinet and a plurality of monitoring devices evenly fixedly installed on the inner wall of the electric power cabinet from top to bottom; the monitoring device includes an I-shaped terminal block; a switch component that is rotatably arranged inside a spherical cavity and slides with an arc-shaped heat-conducting plate; a nickel-titanium two-way memory spring is fixedly connected between the switch component and the I-shaped terminal block; a plurality of monitoring components that are electrically connected to the corresponding switch components are evenly screwed on the surface of the I-shaped terminal block, and when the temperature inside the wiring cavity is transmitted to the arc-shaped heat-conducting plate and the heat-conducting silicone sleeve through a heat-conducting silicone strip, the nickel-titanium two-way memory spring is heated, and the nickel-titanium two-way memory spring is elongated and reset by heat, pushing the switch component to rotate, so that the conductive column rotates and disengages from the two conductive rods, thereby disconnecting the corresponding circuit, preventing the wiring terminal from being continuously overheated, and improving the safety of the use of the electric power components.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical cabinet fault monitoring, and more specifically, to a power control cabinet fault monitoring method and power component monitoring equipment. Background Art

[0002] With the rapid development of my country's economy, the process of urbanization is accelerating, and the requirements for power supply reliability are getting higher and higher. Traditional overhead lines can no longer meet the requirements of power consumption and power supply reliability in large-capacity cities. Overhead lines are gradually replaced by cable lines, and switch boxes, cable junction boxes and other electrical cabinets are increasingly widely used in urban distribution networks, playing an important role in power distribution and control.

[0003] Due to the long-term operation of the power control cabinet, the cables of the power components and the terminal blocks become loose, resulting in increased local resistance. When the current continues to pass through, the cable joints overheat. The high temperature generated by the continuous overheating causes the cable insulation layer to soften or even burn, causing a fire. However, the existing terminal blocks lack the corresponding temperature monitoring function, so that people cannot know in the first time when the temperature of the terminal blocks is high. The continuous temperature rise cannot disconnect the corresponding circuit in time, thus posing a serious safety hazard. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a fault monitoring method for an electric power control cabinet and an electric power component monitoring device. When the temperature inside the wiring cavity is transmitted to the arc-shaped heat-conducting plate and the heat-conducting silicone sleeve through the thermally conductive silicone strip, the nickel-titanium two-way memory spring is heated, and the nickel-titanium two-way memory spring is elongated and reset by heat, pushing the switch part to rotate, so that the two ends of the conductive column are respectively rotated and disengaged from the two conductive rods, thereby disconnecting the corresponding line, preventing the wiring terminal from continuously overheating, and improving the safety of the use of electric power components in the power cabinet.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A power component monitoring device comprises a power cabinet and a plurality of monitoring devices uniformly fixedly installed on the inner wall of the power cabinet from top to bottom; the monitoring device comprises an I-shaped terminal block fixed on the inner wall of the power cabinet; a plurality of heat insulation plates are uniformly fixed on the side of the I-shaped terminal block; each of the heat insulation plates divides the side of the I-shaped terminal block into a plurality of wiring cavities; a plurality of spherical cavities are uniformly opened on the surface of the I-shaped terminal block, and a plurality of arc-shaped heat-conducting plates with the same spherical center as the corresponding spherical cavities are uniformly fixed on the surface; a heat-conducting silicone sleeve is sleeved on the outer peripheral side of the arc-shaped heat-conducting plate; heat-conducting silicone strips extending into the corresponding wiring cavity are fixed at both ends of the arc-shaped heat-conducting plate; a switch member that slides with the arc-shaped heat-conducting plate is rotatably arranged inside the spherical cavity; a nickel-titanium two-way memory spring sleeved on the heat-conducting silicone sleeve is fixedly connected between the switch member and the I-shaped terminal block; a plurality of monitoring members electrically connected to the corresponding switch member are uniformly screwed on the surface of the I-shaped terminal block.

[0007] The present invention is further configured as follows: an L-shaped plate is fixed to the side of the I-shaped terminal block; the L-shaped plate is fixedly mounted on the inner wall of the power cabinet by fastening bolts; the inner wall of the spherical cavity is symmetrically penetrated and connected with conductive rods extending into the corresponding wiring cavity; the switch component includes an insulating ball rotatably arranged in the spherical cavity; a conductive column is penetrated and connected inside the insulating ball; an L-shaped conductive seat fixedly connected to the end of the conductive rod is fixed to the bottom surface of the wiring cavity; a terminal is fixedly connected to the surface of the L-shaped conductive seat.

[0008] The present invention is further configured as follows: a cable is electrically connected between the terminal post and the power components inside the power cabinet; one end of the cable is fixedly connected to a terminal head sleeved on the terminal post; an insulating screw is rotatably provided with a thread passing through the top of the terminal cavity; a fixing sleeve for pressing the terminal head is rotatably provided at the bottom end of the insulating screw; a thermally conductive silicone ring is provided on the side surface around the fixing sleeve; and the thermally conductive silicone ring is fixedly connected to one end of the thermally conductive silicone strip.

[0009] The present invention is further configured as follows: an insulating rod is fixed to the side surface of the insulating ball; a conductive head is fixed to the side surface of the insulating rod; one end of the nickel-titanium two-way memory spring is fixedly connected to the conductive head, and the other end thereof is fixed to the surface of the I-shaped terminal block; the monitoring component includes a sealing cover; a conductive rail having the same spherical center as the insulating ball is fixed to the inner wall of the sealing cover; a wiring rod extending outward through the sealing cover is fixed to one end of the conductive rail; a battery pack and an alarm light are fixedly installed on the top of the sealing cover; the positive and negative poles of the battery pack are connected to the wiring rod and the alarm light in turn through electric wires; a wire is electrically connected between the alarm light and the end of the nickel-titanium two-way memory spring.

[0010] The present invention is further configured as follows: a threaded ring is fixed at the bottom of the sealing cover; a plurality of annular grooves threadedly connected to the corresponding threaded rings are evenly formed on the surface of the I-shaped terminal block; and an arc groove is formed on the side surface of the insulating rod to slide with the thermal conductive silicone sleeve.

[0011] The present invention is further configured as follows: a piston cylinder is fixed on the top of the sealing cover; a guide hole connected to the inside of the sealing cover is opened on the inner bottom surface of the piston cylinder; a piston part slidingly matched with the guide hole is slidably arranged inside the piston cylinder; a hemispherical shell is fixed on the inner wall of the sealing cover; a high-temperature resistant elastic diaphragm is arranged on the end face of the hemispherical shell; an extrusion ball matching with the hemispherical shell is fixed on the circumferential side of the insulating rod; an exhaust pipe and an exhaust pipe are successively penetrated and connected on the circumferential side of the hemispherical shell; an intake pipe is penetrated and connected on the top of the piston cylinder; the intake pipe and the exhaust pipe are connected by a hose.

[0012] The present invention is further configured as follows: a one-way valve is provided on both the exhaust pipe and the exhaust pipe; an air outlet hole is opened on the top of the piston cylinder; a stud is threaded in the air outlet hole; the piston part includes a piston slidably arranged in the piston cylinder; a stopper is fixed to the top of the piston, and a stopper rod slidably matched with the guide hole is fixed to the bottom of the piston; a return spring sleeved on the stopper rod is fixedly connected between the bottom of the piston and the inner bottom surface of the piston cylinder.

[0013] A method for monitoring a fault in a power control cabinet of a power component monitoring device comprises the following steps:

[0014] T1. When the temperature inside the wiring cavity is transferred to the arc-shaped heat-conducting plate and the heat-conducting silicone sleeve through the heat-conducting silicone strip, the nickel-titanium two-way memory spring is heated, and the nickel-titanium two-way memory spring is heated and elongated and reset, pushing the switch to rotate, so that the two ends of the conductive column are respectively rotated and separated from the two conductive rods, realizing the disconnection of the corresponding line, and preventing the continuous overheating of the wiring terminal;

[0015] T2. When the nickel-titanium two-way memory spring is heated and expanded, it drives the conductive head to slide to the side of the conductive rail, the alarm light is turned on and energized to sound an alarm. After the corresponding line is disconnected, the temperature of the terminal drops to room temperature. During this process, the nickel-titanium two-way memory spring contracts due to the cold, pulling the switch to rotate in the opposite direction and reset. The corresponding line is turned on, the corresponding power component is energized and continues to work, and the alarm is eliminated;

[0016] T3. When the nickel-titanium two-way memory spring is heated and expanded, it drives the extrusion ball to squeeze the high-temperature resistant elastic diaphragm, and presses the air inside the hemispherical shell into the piston cylinder, causing the barrier rod to drop and the corresponding reset spring to be compressed. Each time the switch is turned off and reversed to reset, the barrier rod drops a certain distance without resetting. When the barrier rod drops to block the insulating rod so that it cannot reversely rotate and reset, the corresponding electrical component cannot be powered on again and the alarm continues to sound.

[0017] The advantages of the present invention are:

[0018] 1. In the present invention, when the temperature inside the wiring cavity is transmitted to the arc-shaped heat-conducting plate and the heat-conducting silicone sleeve through the heat-conducting silicone strip, the nickel-titanium two-way memory spring 11 is heated, and the nickel-titanium two-way memory spring is heated and elongated and reset, pushing the switch part to rotate, so that the two ends of the conductive column are respectively rotated and separated from the two conductive rods, thereby disconnecting the corresponding line, preventing the continuous overheating of the wiring terminal, and improving the safety of the power components in the power cabinet.

[0019] 2. When the nickel-titanium two-way memory spring of the present invention is heated and expanded, it drives the conductive head to slide to the side of the conductive rail, the alarm light is turned on and energized to emit an alarm sound, and after the corresponding line is disconnected, the temperature of the terminal drops to room temperature. During this process, the nickel-titanium two-way memory spring contracts due to the cold, pulling the switch element to rotate in the opposite direction to reset, the corresponding line is turned on, the corresponding power component is energized to continue working, and the alarm is eliminated, thereby realizing temperature monitoring of the power components in the power cabinet and automatic start and stop of the power components according to the monitoring results, realizing timely monitoring and early warning of high-temperature faults at the terminal of the power components in the power cabinet and disconnecting the line of the corresponding power components, thereby improving the practicality of the device.

[0020] 3. When the nickel-titanium two-way memory spring of the present invention is heated and expanded, it drives the extrusion ball to squeeze the high-temperature resistant elastic diaphragm, and presses the air inside the hemispherical shell into the piston cylinder, so that the barrier rod descends and the corresponding reset spring is compressed. Each time the switch rotates to disconnect and reverses to reset, the barrier rod descends a certain distance without resetting. When the barrier rod descends to block the insulating rod so that it cannot reversely rotate and reset, the corresponding power component cannot be powered on again and the alarm continues to sound. Only when a specified number of repeated alarms are detected will the corresponding power component be completely disconnected, thereby improving the accuracy of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of an electric component monitoring device of the present invention.

[0022] Figure 2 It is a schematic diagram of the structure of the monitoring device of the present invention.

[0023] Figure 3 For the present invention Figure 2 A magnified image of area A.

[0024] Figure 4 It is a schematic structural diagram of the I-shaped terminal block of the present invention.

[0025] Figure 5 For the present invention Figure 4 Schematic diagram of the structure from the right view perspective.

[0026] Figure 6It is a schematic diagram of the structure of the switch element of the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the monitoring element of the present invention.

[0028] Figure 8 It is a schematic structural diagram of the piston part of the present invention.

[0029] Fig. 9 For the present invention Figure 2 Schematic diagram of the structure when the power components are connected.

[0030] Fig.10 For the present invention Figure 2 Schematic diagram of the structure when the power components are disconnected.

[0031] Fig.11 For the present invention Figure 2 Schematic diagram of the structure of the monitoring unit in the continuous alarm state.

[0032] In the figure: 1. Power cabinet; 2. Monitoring device; 3. I-shaped terminal block; 4. Heat insulation board; 5. Wiring cavity; 6. Spherical cavity; 7. Arc-shaped heat-conducting plate; 8. Thermally conductive silicone sleeve; 9. Thermally conductive silicone strip; 10. Switching element; 11. Nickel-titanium two-way memory spring; 12. Monitoring element; 13. L-shaped plate; 14. Conductive rod; 15. Insulating ball; 16. Conductive column; 17. L-shaped conductive seat; 18. Terminal; 19. Cable; 20. Terminal head; 21. Insulating screw; 22. Fixing sleeve; 23. Thermally conductive silicone ring ; 24. Insulating rod; 25. Conductive head; 26. Sealing cover; 27. Conductive rail; 28. Wiring rod; 29. ​​Battery pack; 30. Warning light; 31. Wire; 32. Threaded ring; 33. Annular groove; 34. Arc groove; 35. Piston cylinder; 36. Guide hole; 37. Piston part; 38. Hemispherical shell; 39. High temperature resistant elastic diaphragm; 40. Extrusion ball; 41. Exhaust pipe; 42. Exhaust pipe; 43. Intake pipe; 44. Stud; 45. Piston; 46. Block; 47. Block rod; 48. Return spring. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0035] In the present invention, unless otherwise specified, the directions used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0036] For example, see Figure 1-11 , the present invention provides the following technical solutions:

[0037] A power component monitoring device, specifically, comprises a power cabinet 1 and a plurality of monitoring devices 2 uniformly fixedly installed on the inner wall of the power cabinet 1 from top to bottom; the monitoring device 2 comprises an I-shaped terminal block 3 fixed on the inner wall of the power cabinet 1; a plurality of heat insulation boards 4 are uniformly fixed on the side of the I-shaped terminal block 3; each heat insulation board 4 divides the side of the I-shaped terminal block 3 into a plurality of connection cavities 5; a plurality of spherical cavities 6 are uniformly opened on the surface of the I-shaped terminal block 3, and a plurality of spherical cavities 6 are uniformly fixed on the surface of the I-shaped terminal block 3. The arc-shaped heat-conducting plate 7 is provided with a heat-conducting silicone sleeve 8 on the outer side of the arc-shaped heat-conducting plate 7; heat-conducting silicone strips 9 extending into the corresponding wiring cavity 5 are fixed at both ends of the arc-shaped heat-conducting plate 7; a switch component 10 that slides with the arc-shaped heat-conducting plate 7 is rotatably arranged inside the spherical cavity 6; a nickel-titanium two-way memory spring 11 that is sleeved on the heat-conducting silicone sleeve 8 is fixedly connected between the switch component 10 and the I-shaped terminal block 3; a plurality of monitoring components 12 that are electrically connected to the corresponding switch components 10 are evenly screwed on the surface of the I-shaped terminal block 3.

[0038] Working principle of the first embodiment:

[0039] The nickel-titanium dual-range memory spring 11 is wound with nickel-titanium-based shape memory alloy wire, utilizing the memory effect of shape memory alloy. This spring is also a typical structural component of industrial shape memory alloy components. After being stretched or compressed below the phase transition temperature of the spring, hot water or hot air is used as a heat source. When the ambient temperature returns to the phase transition temperature set by the spring, the spring automatically returns to its initial shape.

[0040] The nickel-titanium two-way memory spring 11 in the present application contracts below the spring phase transition temperature, and is in a contracted state at room temperature (i.e. Fig. 9 The state of the nickel-titanium two-way memory spring 11 is shown), when heated by a heat source, the spring automatically stretches and returns to its initial state ( Fig.10 The state of the nickel-titanium two-way memory spring 11 is shown).

[0041] The diameter of the conductive column 16 is greater than the diameter of the conductive rod 14. When the internal temperature of the wiring cavity 5 is transmitted to the arc-shaped heat-conducting plate 7 and the heat-conducting silicone sleeve 8 through the thermally conductive silicone strip 9, the nickel-titanium two-way memory spring 11 is heated. The nickel-titanium two-way memory spring 11 is heated and elongated and reset, pushing the switch 10 to rotate, so that the two ends of the conductive column 16 are respectively rotated and disengaged from the two conductive rods 14, thereby disconnecting the corresponding line, preventing the wiring terminal from being continuously overheated, and improving the safety of the power components in the power cabinet 1.

[0042] For example 2, please refer to Figure 1-11 The second embodiment is improved on the basis of the first embodiment as follows. Specifically, an L-shaped plate 13 is fixed to the side of the I-shaped terminal row 3; the L-shaped plate 13 is fixedly mounted on the inner wall of the power cabinet 1 by fastening bolts; a conductive rod 14 extending into the corresponding wiring cavity 5 is symmetrically penetrated and connected to the inner wall of the spherical cavity 6; the switch 10 includes an insulating ball 15 rotatably arranged in the spherical cavity 6; a conductive column 16 is penetrated and connected to the inside of the insulating ball 15; an L-shaped conductive seat 17 fixedly connected to the end of the conductive rod 14 is fixed to the bottom surface of the wiring cavity 5; and a terminal 18 is fixedly connected to the surface of the L-shaped conductive seat 17.

[0043] A cable 19 is electrically connected between the terminal 18 and the power components inside the power cabinet 1; one end of the cable 19 is fixedly connected to a terminal head 20 sleeved on the terminal 18; an insulating screw 21 is rotatably provided with a thread passing through the top of the wiring cavity 5; a fixing sleeve 22 for pressing the terminal head 20 is rotatably provided at the bottom end of the insulating screw 21; a thermally conductive silicone ring 23 is provided on the side surface of the fixing sleeve 22; the thermally conductive silicone ring 23 is fixedly connected to one end of the thermally conductive silicone strip 9.

[0044] An insulating rod 24 is fixed to the side surface of the insulating ball 15; a conductive head 25 is fixed to the side surface of the insulating rod 24; one end of the nickel-titanium two-way memory spring 11 is fixedly connected to the conductive head 25, and the other end thereof is fixed to the surface of the I-shaped terminal block 3; the monitoring component 12 includes a sealing cover 26; a conductive rail 27 having the same spherical center as the insulating ball 15 is fixed to the inner wall of the sealing cover 26; a wiring rod 28 extending outward through the sealing cover 26 is fixed to one end of the conductive rail 27; a battery pack 29 and an alarm light 30 are fixedly installed on the top of the sealing cover 26; the positive and negative poles of the battery pack 29 are connected to the wiring rod 28 and the alarm light 30 in turn through electric wires; a wire 31 is electrically connected between the alarm light 30 and the end of the nickel-titanium two-way memory spring 11.

[0045] A threaded ring 32 is fixed at the bottom of the sealing cover 26; a plurality of annular grooves 33 are evenly formed on the surface of the I-shaped terminal block 3 and are screwed to the corresponding threaded rings 32; an arc groove 34 is formed on the side surface of the insulating rod 24 and is slidably matched with the thermal conductive silicone sleeve 8.

[0046] A piston cylinder 35 is fixed to the top of the sealing cover 26; a guide hole 36 connected to the inside of the sealing cover 26 is opened on the inner bottom surface of the piston cylinder 35; a piston part 37 slidingly matched with the guide hole 36 is slidably arranged inside the piston cylinder 35; a hemispherical shell 38 is fixed to the inner wall of the sealing cover 26; a high-temperature resistant elastic diaphragm 39 is arranged on the end face of the hemispherical shell 38; an extrusion ball 40 matched with the hemispherical shell 38 is fixed to the side surface of the insulating rod 24; an exhaust pipe 41 and an exhaust pipe 42 are successively penetrated and connected to the side surface of the hemispherical shell 38; an intake pipe 43 is penetrated and connected to the top of the piston cylinder 35; the intake pipe 43 and the exhaust pipe 41 are connected by a hose.

[0047] Both the exhaust pipe 41 and the suction pipe 42 are provided with a one-way valve; an air outlet is opened at the top of the piston cylinder 35; a stud 44 is screwed in the air outlet; the piston part 37 includes a piston 45 slidably set in the piston cylinder 35; a stopper 46 is fixed to the top of the piston 45, and a stopper rod 47 slidably matched with the guide hole 36 is fixed to the bottom of the piston 45; a return spring 48 mounted on the stopper rod 47 is fixedly connected between the bottom of the piston 45 and the inner bottom surface of the piston cylinder 35.

[0048] Working principle of the second embodiment:

[0049] During the wiring process, disconnect the power switch of the power cabinet 1, and put the terminal head 20 at the end of the cable 19 on the power component inside the power cabinet 1 on the corresponding terminal post 18, rotate the insulating screw 21 to make it rotate and descend, hold the fixing sleeve 22 by hand to drive the fixing sleeve 22 to descend and press the terminal head 20, so as to complete the wiring work between the power component cable 19 in the power cabinet 1 and the corresponding terminal post 18.

[0050] When the power components are in normal working condition, Fig. 9 As shown, the top end of the insulating rod 24 vertically points to the sealing cover 26. At this time, the two ends of the conductive column 16 are respectively connected to the two conductive rods 14, and the electrical components are energized and working normally. At this time, the block 46 is pressed against the top of the piston cylinder 35 under the elastic force of the reset spring 48, the high-temperature resistant elastic diaphragm 39 is disengaged from the squeezing ball 40 and is in a normal state, the conductive head 25 is disengaged from the conductive rail 27 and is not in contact, and the alarm light 30 is powered off and does not alarm.

[0051] When the temperature of the connection point inside the connection cavity 5 rises, Fig.10As shown, the internal temperature of the wiring cavity 5 is transmitted to the arc-shaped heat-conducting plate 7 and the heat-conducting silicone sleeve 8 through the heat-conducting silicone strip 9, and the nickel-titanium two-way memory spring 11 is heated. The nickel-titanium two-way memory spring 11 is stretched and reset by heat, and the switch 10 is pushed to rotate, so that the two ends of the conductive column 16 are respectively rotated and disengaged from the two conductive rods 14, so as to disconnect the corresponding line, and prevent the corresponding power component cable 19 from continuously overheating and causing a fire. In the process of the nickel-titanium two-way memory spring 11 being heated and expanded, the conductive head 25 is driven to slide to the side of the conductive rail 27, and the alarm light 30 is turned on and energized to sound an alarm, so as to timely monitor and warn the high-temperature fault of the power component terminal in the power cabinet 1 and disconnect the line of the corresponding power component. After the corresponding line is disconnected, the temperature of the terminal drops to room temperature. In this process, the nickel-titanium two-way memory spring 11 is cold and shrinks, and pulls the switch 10 to rotate in the opposite direction and reset, so that the corresponding line is turned on, the corresponding power component is energized to continue working, and the alarm is eliminated.

[0052] When the nickel-titanium two-way memory spring 11 is heated and expanded, it drives the extrusion ball 40 to squeeze the high-temperature resistant elastic diaphragm 39, and presses the air inside the hemispherical shell 38 into the piston cylinder 35, so that the blocking rod 47 descends, and the corresponding reset spring 48 is compressed. Each rotation of the switch 10 to disconnect and reverse rotation to reset is a working cycle. In each working cycle, the blocking rod 47 descends a certain distance without resetting. When the blocking rod 47 descends to block the insulating rod 24 so that it cannot reversely rotate and reset (such as Fig.11 As shown), at this time, the corresponding power component cannot be powered on again, and the alarm continues to sound. Only when the specified number of repeated alarms is monitored, it is proved that there is indeed a high-temperature fault at the wiring point of the power component during operation, and the corresponding power component will be completely disconnected, avoiding a single misjudgment and improving the accuracy of monitoring; after the staff completes the on-site maintenance, the stud 44 on the corresponding piston cylinder 35 is rotated and removed, so that the piston cylinder 35 is connected to the outside air, and the piston part 37 is driven to slide and rise and reset under the elastic action of the reset spring 48, thereby releasing the limit on the switch member 10, and tightening the stud 44 again.

[0053] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0054] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0055] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0057] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A power component monitoring device, comprising a power cabinet and a plurality of monitoring devices evenly fixedly installed on the inner wall of the power cabinet from top to bottom; characterized in that: The monitoring device comprises an I-shaped terminal block fixed to the inner wall of the power cabinet; a plurality of heat insulation boards are evenly fixed on the side of the I-shaped terminal block; each of the heat insulation boards divides the side of the I-shaped terminal block into a plurality of connection chambers; The surface of the I-shaped terminal block is uniformly provided with a plurality of spherical cavities, and a plurality of arc-shaped heat-conducting plates having the same spherical center as the corresponding spherical cavities are uniformly fixed on the surface; the outer peripheral side of the arc-shaped heat-conducting plate is covered with a heat-conducting silicone sleeve; both ends of the arc-shaped heat-conducting plate are fixed with heat-conducting silicone strips extending into the corresponding wiring cavity; A switch component is rotatably arranged inside the spherical cavity to slide with the arc-shaped heat-conducting plate; a nickel-titanium two-way memory spring sleeved on a heat-conducting silicone sleeve is fixedly connected between the switch component and the I-shaped terminal block; a plurality of monitoring components electrically connected to the corresponding switch components are evenly screwed on the surface of the I-shaped terminal block; An L-shaped plate is fixed to the side of the I-shaped terminal block; the L-shaped plate is fixedly mounted on the inner wall of the power cabinet by fastening bolts; the inner wall of the spherical cavity is symmetrically penetrated and connected with a conductive rod extending into the corresponding wiring cavity; the switch member includes an insulating ball rotatably arranged in the spherical cavity; a conductive column is penetrated and connected inside the insulating ball; an L-shaped conductive seat fixedly connected to the end of the conductive rod is fixed on the bottom surface of the wiring cavity; a terminal is fixedly connected to the surface of the L-shaped conductive seat; An insulating rod is fixed to the side surface of the insulating ball; a conductive head is fixed to the side surface of the insulating rod; one end of the nickel-titanium two-way memory spring is fixedly connected to the conductive head, and the other end of the nickel-titanium two-way memory spring is fixed to the surface of the I-shaped terminal block; the monitoring component includes a sealing cover; a conductive rail with the same spherical center as the insulating ball is fixed to the inner wall of the sealing cover; a wiring rod extending outward through the sealing cover is fixed to one end of the conductive rail; a battery pack and an alarm light are fixedly installed on the top of the sealing cover; the positive and negative poles of the battery pack are connected to the wiring rod and the alarm light in turn through electric wires; a wire is electrically connected between the alarm light and the end of the nickel-titanium two-way memory spring.

2. The power component monitoring device according to claim 1, characterized in that: A cable is electrically connected between the terminal and the power components inside the power cabinet; one end of the cable is fixedly connected to a terminal head mounted on the terminal; an insulating screw is rotatably provided with a thread passing through the top of the terminal cavity; a fixing sleeve for pressing the terminal head is rotatably provided at the bottom end of the insulating screw; a thermally conductive silicone ring is provided on the side surface of the fixing sleeve; the thermally conductive silicone ring is fixedly connected to one end of the thermally conductive silicone strip.

3. The power component monitoring device according to claim 2, characterized in that: A threaded ring is fixed at the bottom of the sealing cover; a plurality of annular grooves threadedly connected with the corresponding threaded rings are evenly arranged on the surface of the I-shaped terminal block; an arc groove slidingly matched with the thermal conductive silicone sleeve is arranged on the side surface of the insulating rod.

4. The power component monitoring device according to claim 3, characterized in that: A piston cylinder is fixed on the top of the sealing cover; a guide hole communicating with the inside of the sealing cover is opened on the inner bottom surface of the piston cylinder; a piston part slidingly arranged inside the piston cylinder and slidingly cooperating with the guide hole; A hemispherical shell is fixed on the inner wall of the sealing cover; a high temperature resistant elastic diaphragm is arranged on the end surface of the hemispherical shell; an extrusion ball matching the hemispherical shell is fixed on the peripheral side of the insulating rod; The side surface of the hemispherical shell is penetrated and connected with an exhaust pipe and an air extraction pipe in sequence; the top of the piston cylinder is penetrated and connected with an air intake pipe; the air intake pipe and the exhaust pipe are connected by a hose.

5. The power component monitoring device according to claim 4, characterized in that: The exhaust pipe and the air extraction pipe are both provided with a one-way valve; the top of the piston cylinder is provided with an air outlet; a stud is screwed into the air outlet; The piston part includes a piston slidably arranged in a piston cylinder; a stopper is fixed to the top of the piston, and a stopper rod slidably matched with a guide hole is fixed to the bottom of the piston; a return spring sleeved on the stopper rod is fixedly connected between the bottom of the piston and the inner bottom surface of the piston cylinder.

6. The method for monitoring faults of a power control cabinet of a power component monitoring device according to claim 5, characterized in that: The following steps are involved: T1. When the temperature inside the wiring cavity is transferred to the arc-shaped heat-conducting plate and the heat-conducting silicone sleeve through the heat-conducting silicone strip, the nickel-titanium two-way memory spring is heated, and the nickel-titanium two-way memory spring is heated and elongated and reset, pushing the switch to rotate, so that the two ends of the conductive column are respectively rotated and separated from the two conductive rods, realizing the disconnection of the corresponding line, and preventing the continuous overheating of the wiring terminal; T2. When the nickel-titanium two-way memory spring is heated and expanded, it drives the conductive head to slide to the side of the conductive rail, the alarm light is turned on and energized to sound an alarm. After the corresponding line is disconnected, the temperature of the terminal drops to room temperature. During this process, the nickel-titanium two-way memory spring contracts due to the cold, pulling the switch to rotate in the opposite direction and reset. The corresponding line is turned on, the corresponding power component is energized and continues to work, and the alarm is eliminated; T3. When the nickel-titanium two-way memory spring is heated and expanded, it drives the extrusion ball to squeeze the high-temperature resistant elastic diaphragm, and presses the air inside the hemispherical shell into the piston cylinder, causing the barrier rod to drop and the corresponding reset spring to be compressed. Each time the switch is turned off and reversed to reset, the barrier rod drops a certain distance without resetting. When the barrier rod drops to block the insulating rod so that it cannot reversely rotate and reset, the corresponding electrical component cannot be powered on again and the alarm continues to sound.

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