Real-time monitoring device for working state of switch cabinet contact

Abstract

A real-time monitoring device for the working state of a switch cabinet contact relates to a switch cabinet contact monitoring device and comprises a switch cabinet body, six sleeve holes of a mounting plate are respectively sleeved on six tulip contacts of a handcart, and the mounting plate is close to a protective tube of each contact. The two U-shaped mounting seats are fixedly mounted outside the two lantern rings in the middle and the mounting plates arranged between every two lantern rings on the two sides respectively; the portion, close to the outer side, of the inserting column pipe is inserted into the movable opening, the outer side of a sliding rod arranged on the outer end face of the inserting column pipe penetrates into a sliding hole in an outer side plate of the installation base, the sliding rod is sleeved with a spring, and the inserting firmness of the tulip contact is obtained through the inserting column pipe. X-shaped distributed probes are arranged at the positions, close to the inner ends, of the inserting column pipes, and the probes transmit the temperature of the plum blossom contact to a temperature sensor digital display box on the upper portion outside the switch cabinet handcart tray box in real time through a data line; according to the invention, the X-shaped distributed probe is utilized to obtain the temperature of the contact, and the spring is utilized to sense the connection firmness of the contact.

Description

Technical Field

[0001] The invention relates to a switch cabinet contact monitoring device, in particular to a real-time monitoring device for the working state of a switch cabinet contact. Background Art

[0002] As is known, the main function of the switch cabinet is to open and close, control and protect electricity in the process of power generation, transmission, distribution and power conversion of the power system. The components in the switch cabinet mainly include circuit breakers, disconnectors, load switches, operating mechanisms, mutual inductors, various protection devices and various instruments. The main reasons for the switch cabinet to fail include refusal to operate and malfunction failures, which are usually caused by mechanical failures of the operating mechanism and transmission system or problems with the electrical control and auxiliary circuits. Mechanical failures are manifested as mechanism jamming, component deformation, displacement or damage, loosening and jamming of the opening and closing iron core, loosening or tripping failure of the shaft pin; electrical control and auxiliary circuit failures are manifested as poor contact of secondary wiring, loose terminals, wiring errors, burning of the opening and closing coils, ineffective switching of auxiliary switches, etc. As one of the important equipment of the power, the switch cabinet circuit breaker contacts will increase their resistance due to poor contact, "loose clamping", mechanical wear and air corrosion during long-term operation, causing their heat to increase sharply. If they are not discovered and handled in time, serious safety accidents will occur. Summary of the invention

[0003] The purpose of the present invention is to disclose a real-time monitoring device for the working state of switch cabinet contacts based on the existing deficiencies, which uses an "X"-shaped distributed probe to obtain the contact temperature and senses the connection firmness of the contact through a spring.

[0004] A real-time monitoring device for the working state of a switch cabinet contact comprises a switch cabinet body, six plum blossom contacts are arranged on a trolley of the switch cabinet, six sleeve holes of a mounting plate are respectively sleeved on the six plum blossom contacts of the trolley, the mounting plate is close to the protective tube of each contact, two U-shaped mounting seats are respectively fixedly mounted on the outside of the mounting plate between two sets of rings in the middle and two sets of rings on both sides, a sliding hole is arranged in the middle of the outer plate of the two U-shaped mounting seats, and a movable opening is arranged on the mounting plate corresponding to the two sliding holes; a column tube is inserted into the movable opening near the outer side, a raised ring is arranged near the outer end of the column tube, and the outer side of the sliding rod arranged on the outer end face of the column tube The two ends of the spring on the sliding rod are respectively pressed against the inner surface of the mounting seat and the outer end surface of the plug-in column tube by the spring, and the inner end of the plug-in column tube is pressed against the isolation plate between the upper contact box and the lower contact box of the switch cabinet by the spring, so that the plug-in firmness of the plum blossom contact is obtained through the plug-in column tube; an "X"-shaped distributed probe is arranged near the inner end of the plug-in column tube, and each probe end of the four "X"-shaped distributed probes corresponds to the plum blossom contact, and the probe transmits the temperature of the plum blossom contact to the temperature sensor digital display box on the upper outer part of the switch cabinet trolley tray box in real time through the data cable, and the temperature sensor digital display box displays the temperature of the switch cabinet contact in real time.

[0005] The real-time monitoring device for the working status of the switch cabinet contacts is provided with connecting plates on the inner sides of the outer plates of each mounting seat, and wing plates are provided on the inner and outer sides of the two connecting plates, which are locked by nuts after the locking screws pass through the mounting holes B of the wing plates and the mounting holes A of the mounting plates.

[0006] In the real-time monitoring device for the working state of the switch cabinet contacts, an external thread is arranged at the outer end of the sliding rod, and the external thread of the sliding rod is connected to the internal thread A of the positioning ring.

[0007] The real-time monitoring device for the working status of the switch cabinet contacts is provided with a reducing screw at the inner end of the column tube, and four equidistant notches are provided at the outer edge of the inner end of the column tube. Four probes distributed in an "X" shape are respectively located in the four notches, and the reducing screw is connected by the internal thread B of the locking ring.

[0008] In the real-time monitoring device for the working status of the switch cabinet contacts, a through hole is provided in the sliding rod inside the outer end of the column tube, the main probe and the probe handle of the probe are hidden in the column tube, and the data line outside the probe handle is passed through the sliding rod.

[0009] The real-time monitoring device for the working status of the switch cabinet contacts is provided with three rings at intervals on the upper part of the mounting plate, and downward weight-reducing recesses are respectively provided between the three rings at intervals on the upper part, and three rings at intervals on the lower part of the mounting plate are provided with three rings at intervals, and upward weight-reducing recesses are respectively provided between the three rings at intervals on the lower part, and the middle parts of the six rings are holes; inward weight-reducing recesses are respectively provided between the two sides of the three upper rings and the three lower rings.

[0010] The real-time monitoring device for the working status of the switch cabinet contacts is provided with a weight-reducing opening in the middle of the mounting plate.

[0011] In order to achieve the purpose of the invention, the present application discloses the following technical solutions: Through the above invention content, the beneficial effects of the present invention are: The real-time monitoring device for the working status of the switch cabinet contacts described in the present invention arranges probes between the six plum blossom contacts, so that the probes can timely sense abnormal changes in the connection temperature of the plum blossom contacts and transmit them to the temperature sensor digital display box in time through the data line, so that the abnormal temperature can be discovered and handled in time during the inspection process; the spring arranged in the present invention can press the trolley handle during the inspection process, and then judge whether the plum blossom contact is firmly clamped through the contact between the column tube supported by the spring and the contact box isolation plate; the present invention can effectively improve the timely discovery of abnormalities in the switch cabinet contacts, and provide a guarantee for reducing faults. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the mounting plate of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the column inserting tube part of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the probe needle part of the present invention; In the figure: 1. Plug-in box; 2. Expanded diameter of bushing; 3. Protective tube on contact; 4. Plum blossom contact; 5. Positioning ring; 6. Spring; 7. Sliding rod; 8. Raised ring; 9. Locking ring; 10. Plug-in tube; 11. Probe; 12. Mounting seat; 13. Locking screw; 14. Mounting plate; 15. Protective tube under contact; 16. Circuit breaker column; 17. Top plate; 18. Tray box; 19. Bottom plate of handcart; 20. Handle; 21. Pin; 22. Temperature sensor digital display box; 23. Data cable; 24. Fixing plate; 25. Ring; 26. Movable opening; 27. Weight reduction opening; 28. Mounting hole A; 29. ​​Hole; 30. Internal thread A; 31. Sliding hole; 32. Mounting hole B; 33. Perforation; 34. Reduced diameter screw; 35. Notch; 36. Internal thread B; 37. Main probe; 38. Probe handle. DETAILED DESCRIPTION

[0013] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings so as to more clearly understand the purpose, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to explain that the technical solution of the present invention is not limited to one implementation method.

[0014] Combined with Figures 1 to 4The real-time monitoring device for the working state of the switch cabinet contact described in the embodiment comprises a switch cabinet body, six plum blossom contacts 4 are arranged on the switch cabinet trolley, six sleeve holes 29 of the mounting plate 14 are respectively sleeved on the six plum blossom contacts 4 of the trolley, the mounting plate 14 is close to the protective tube of each contact, and the two U-shaped mounting seats 12 are respectively fixedly mounted on the outside of the mounting plate 14 between the two sets of rings 25 in the middle and the two sets of rings 25 on both sides, a sliding hole 31 is arranged in the middle of the outer plate of the two U-shaped mounting seats 12, and a movable opening 26 is arranged on the mounting plate 14 corresponding to the two sliding holes 31; the column tube 10 is inserted into the movable opening 26 near the outside, and a raised ring 8 is arranged near the outer end of the column tube 10, and a sliding rod 7 is arranged on the outer end face of the column tube 10 The spring 6 which is inserted into the sliding hole 31 of the outer plate of the mounting seat 12 has its two ends respectively pressed against the inner surface of the mounting seat 12 and the outer end surface of the plug-in column tube 10, and the spring 6 makes the inner end of the plug-in column tube 10 press against the isolation plate between the upper contact box and the lower contact box of the switch cabinet, so as to obtain the plug-in firmness of the plum blossom contact 4 through the plug-in column tube 10; an "X"-shaped distributed probe 11 is arranged near the inner end of the plug-in column tube 10, and each end of the four probes 11 distributed in the "X" shape corresponds to the plum blossom contact 4 respectively, and the probe 11 transmits the temperature of the plum blossom contact 4 to the temperature sensor digital display box 22 on the outer upper part of the switch cabinet trolley tray box 18 in real time through the data line 23, and the temperature sensor digital display box 22 displays the temperature of the switch cabinet contact in real time.

[0015] Combined with Figure 1 , 3 Or 4, connecting plates are respectively provided on the inner sides of the outer plates of each mounting seat 12, and wing plates are respectively provided on the outer sides of the inner sides of the two connecting plates, which are locked by nuts after being passed through the mounting holes B32 of the wing plates and the mounting holes A28 of the mounting plates 14 by locking screws 13; an external thread is provided at the outer end of the sliding rod 7, and the external thread of the sliding rod 7 is connected with the internal thread A30 of the positioning ring 5; a reducing screw 34 is provided at the inner end of the column tube 10, and four equidistant notches 35 are provided on the outer edge of the inner end of the column tube 10, and four probes 11 distributed in an "X" shape are respectively located in the four notches 35, and the reducing screw 34 is connected by the internal thread B36 of the locking ring 9; a through hole 33 is provided in the sliding rod 7 inside the outer end of the column tube 10, and the main probe 37 and the probe handle 38 of the probe 11 are hidden in the column tube 10, and the data line 23 on the outside of the probe handle 38 is passed through the sliding rod 7.

[0016] Combined with Figure 1Or 2, three rings 25 are arranged at intervals on the upper part of the mounting plate 14, and downward weight-reducing recesses are respectively provided between the three rings 25 arranged at intervals on the upper part, and three rings 25 are arranged at intervals on the lower part of the mounting plate 14, and upward weight-reducing recesses are respectively provided between the three rings 25 arranged at intervals on the lower part, and the middle part of the six rings 25 is a hole 29; inward weight-reducing recesses are respectively provided between the two sides of the three upper rings 25 and the three lower rings 25; a weight-reducing opening 27 is provided in the middle part of the mounting plate 14.

[0017] The real-time monitoring device for the working state of the switch cabinet contact of the present invention is implemented in combination with the attached Figures 1 to 4 The mounting plate 14, the column tube 10, the locking ring 9, the mounting seat 12 and the positioning ring 5 of the present invention are preferably made of high-temperature resistant nylon "PPa", and the heat deformation temperature of the high-temperature resistant nylon should be as high as 300°C or above; the spring 6 is stainless spring steel; the locking screw 13 is made of stainless steel; the temperature sensor uses a commercially available armored thermocouple "temperature sensor" with a digital display box and its own power supply, in which the probe 11 is partially transformed into four X-shaped probes 11. If a temperature sensor is transformed into a dual data line 23 and a dual plug, a single temperature sensor can be used, or two temperature sensors can be installed.

[0018] The installation and use of the present invention are as follows: the spring 6 is sleeved on the sliding rod 7, and then the sliding rod 7 is inserted into the sliding hole 31 of the mounting seat 12, the positioning ring 5 is connected to the sliding rod 7, and then the column tube 10 is inserted into the movable opening 26 of the mounting plate 14, and the mounting seat 12 and the mounting plate 14 are fixedly connected using the locking screw 13, and the connecting end plug of the temperature sensor and the temperature sensor digital display box 22 is removed, and the connecting end plug is used to penetrate the column tube 10 and enter the sliding rod 7 and then pulled out. At this time, the four probes 11 are respectively in the notches 35 of the column tube 10, and the locking ring 9 is connected to the column tube 10. According to the above method, the temperature sensors of the two sets of four probes 11 are completely installed.

[0019] Further, in the use of the present invention, before the trolley is installed, a through hole is punched on the tray box 18 with a tool to place the data cable 23, or the data cable 23 can be placed in the gap on the upper part of the trolley. The data cable 23 can be wound on the fixing plate 24 connecting the circuit breaker column 16 and the tray box 18, and the temperature sensor digital display box 22 is fixed to a suitable position of the control panel outside the tray box 18. The six sleeve holes 29 of the mounting plate 14 are sleeved on the upper and lower contact protective tubes 3 and the lower contact protective tubes 15 of the three circuit breaker columns 16. Make the outer side of the mounting plate 14 close to the inner surface of the sleeve expansion diameter 2, and then use the pick-up and delivery trolley at the bottom of the trolley bottom plate 19 to deliver it to the switch cabinet trolley cavity, and then use the pin 21 to lock the pick-up and delivery trolley outside the switch cabinet trolley cavity, and use the handle 20 to send the trolley into the switch cabinet trolley cavity. At this time, the upper three of the six plum blossom contacts 4 are connected to the moving contact, and the top plate 17 is also against the plate body at the lower part of the switch cabinet trolley cavity. The lower three of the six plum blossom contacts 4 are connected to the static contact, and then the plug-in box 1 is used to connect it to the upper part of the switch cabinet trolley cavity.

[0020] After completing the above steps or during each power-off inspection, the handle 20 is then pushed to sense the top force of the spring 6 to determine whether the six plum blossom contacts 4 are firmly connected to the static contact and the moving contact respectively; during daily inspections, the digital display temperature of the temperature sensor digital display box 22 can be observed to determine the real-time temperature status of the six plum blossom contacts 4.

[0021] The preferred embodiments of the present invention have been described in detail above, but it should be understood that after reading the above teachings of the present invention, those skilled in the art may make various changes or modifications within the scope of protection of the present invention. These equivalent forms also fall within the scope defined by the claims attached to this application.

[0022] Parts of the present invention not described in detail are prior art.

Claims

1. A real-time monitoring device for the working state of a switch cabinet contact, comprising a switch cabinet body, a switch cabinet trolley provided with six plum blossom contacts (4), wherein: The six sleeve holes (29) of the mounting plate (14) are respectively sleeved on the six plum blossom contacts (4) of the trolley, the mounting plate (14) is close to the protective tube of each contact, the two U-shaped mounting seats (12) are respectively fixedly mounted on the outside of the mounting plate (14) between the two sleeve rings (25) in the middle and the two sleeve rings (25) on both sides, a sliding hole (31) is provided in the middle of the outer plate of the two U-shaped mounting seats (12), and a movable opening (26) is provided on the mounting plate (14) corresponding to the two sliding holes (31); the column tube (10) is inserted into the movable opening (26) near the outer side, and a raised ring (8) is provided near the outer end of the column tube (10), and the sliding rod (7) provided on the outer end surface of the column tube (10) is inserted into the sliding hole (31) of the outer plate of the mounting seat (12) on the outer side, and the sliding rod (7) The two ends of the upper sleeve spring (6) are respectively pressed against the inner surface of the mounting seat (12) and the outer end surface of the plug-in column tube (10), and the spring (6) causes the inner end of the plug-in column tube (10) to press against the isolation plate between the upper contact box and the lower contact box of the switch cabinet, and the plug-in firmness of the plum blossom contact (4) is obtained through the plug-in column tube (10); an "X"-shaped distributed probe (11) is arranged near the inner end of the plug-in column tube (10), and the end of each probe (11) of the four "X"-shaped distributed probes (11) corresponds to the plum blossom contact (4), and the probe (11) transmits the temperature of the plum blossom contact (4) to the temperature sensor digital display box (22) on the upper outer part of the switch cabinet trolley tray box (18) in real time through the data line (23), and the temperature sensor digital display box (22) displays the temperature of the switch cabinet contact in real time.

2. The real-time monitoring device for the working state of the switch cabinet contacts according to claim 1 is characterized in that: Connecting plates are respectively provided on the inner sides of the outer plates of each mounting seat (12), and wing plates are respectively provided on the inner and outer sides of the two connecting plates. Locking screws (13) are passed through the mounting holes B (32) of the wing plates and the mounting holes A (28) of the mounting plates (14) and then locked by nuts.

3. The real-time monitoring device for the working state of the switch cabinet contacts according to claim 1 is characterized in that: An external thread is provided at the outer end of the sliding rod (7), and the external thread of the sliding rod (7) is connected to the internal thread A (30) of the positioning ring (5).

4. The real-time monitoring device for the working state of the switch cabinet contacts according to claim 1 is characterized in that: A reducing screw (34) is provided at the inner end of the column inserting tube (10), and four equidistant notches (35) are provided at the outer edge of the inner end of the column inserting tube (10). Four probes (11) are arranged in an "X" shape and are respectively located in the four notches (35). The reducing screw (34) is connected by an internal thread B (36) of a locking ring (9).

5. The real-time monitoring device for the working state of the switch cabinet contacts according to claim 1 is characterized in that: A through hole (33) is provided in the sliding rod (7) inside the outer end of the column tube (10); a main probe (37) and a probe handle (38) of the probe (11) are hidden in the column tube (10); and a data line (23) outside the probe handle (38) is passed through the sliding rod (7).

6. The real-time monitoring device for the working state of the switch cabinet contacts according to claim 1 is characterized in that: The mounting plate (14) is provided with three collars (25) at intervals on the upper part, and downward weight-reducing recesses are respectively provided between two of the three collars (25) at intervals on the upper part; the mounting plate (14) is provided with three collars (25) at intervals on the lower part, and upward weight-reducing recesses are respectively provided between two of the three collars (25) at intervals on the lower part; the six collars (25) have collar holes (29) in the middle; and inward weight-reducing recesses are respectively provided between the two sides of the three collars (25) at the upper part and the three collars (25) at the lower part.

7. The real-time monitoring device for the working state of the switch cabinet contacts according to claim 6 is characterized in that: A weight-reducing opening (27) is provided in the middle of the mounting plate (14).

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