CN219477248U - Switch cabinet contact joint protection structure - Google Patents
Switch cabinet contact joint protection structure Download PDFInfo
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- CN219477248U CN219477248U CN202320347336.XU CN202320347336U CN219477248U CN 219477248 U CN219477248 U CN 219477248U CN 202320347336 U CN202320347336 U CN 202320347336U CN 219477248 U CN219477248 U CN 219477248U
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- fixedly connected
- room
- switch cabinet
- contact
- cable
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model discloses a switch cabinet contact joint protection structure which comprises a switch cabinet, wherein a handcart room is formed in the middle of the front end of the inside of the switch cabinet, a cable room is formed in the rear end of the inside of the switch cabinet close to the bottom, an instrument room is formed in the inside of the switch cabinet above the handcart room, a bus room is formed in the inside of the switch cabinet above the cable room, and a bus contact box is fixedly connected to the front end of the inside of the bus room close to the bottom. According to the utility model, the movable contact is connected with the bus contact box and the outlet contact box through the protection mechanism, and when the movable contact is connected with the bus contact box and the outlet contact box, the movable contact is tightly clamped by the multi-groove elastic clamping head, so that a series of problems of loose connection caused by long-term contact friction, short circuit caused by loose connection and the like are avoided.
Description
Technical Field
The utility model relates to the technical field of switch cabinet protection mechanisms, in particular to a switch cabinet contact joint protection structure.
Background
The switch cabinet is equipment for connecting high-voltage or low-voltage cables, external wires firstly enter a main control switch in the cabinet and then enter a sub-control switch, each shunt is arranged according to the requirements of the switch cabinet, the switch cabinet is also provided with a high-voltage chamber and a low-voltage chamber, the switch cabinet mainly plays roles of on-off, control or protection in power generation, transmission, distribution, electric energy conversion and consumption of a power system, is often applied to occasions such as power plants, substations, petrochemical industry, metallurgical rolling, light industry textiles, factories and mining enterprises and residential communities, high-rise buildings and the like, the high-voltage switch cabinet can be divided into a fixed switch cabinet and a movable (handcart) switch cabinet according to the installation mode of a circuit breaker, wherein the handcart type switch cabinet controls the separation of a moving contact and a fixed contact through the handcart, the moving contact and the fixed contact in the prior art are mainly connected through a sleeve, the connection mode is not tight after long-time use, because friction can lead to gaps in connection between the moving contact and the moving contact, the voltage is insufficient, serious interruption can occur, the power supply can occur, the bad connection can be greatly, the contact is heated due to the fact that the contact resistance is larger, and the contact resistance is further serious, and the electrical fire disaster can occur.
Disclosure of Invention
The utility model discloses a switch cabinet contact joint protection structure, which aims to solve the problems in the background technology.
In order to solve the technical problems, the utility model adopts a technical scheme that: the utility model provides a cubical switchboard contact joint protection architecture, including the cubical switchboard, the handcart room has been seted up to the inside front end middle part position of cubical switchboard, the cable chamber has been seted up to the inside rear end of cubical switchboard near bottom position, the instrument room has been seted up to the inside position that is located the handcart room of cubical switchboard, the busbar room has been seted up to the inside position that is located the cable room of cubical switchboard, the inside front end of busbar room is close to bottom position fixedly connected with busbar contact box, the inside front end of cable room is close to top position fixedly connected with outlet contact box, busbar contact box and the inside fixedly connected with connection protection mechanism of outlet contact box.
The utility model further provides that the connection protection mechanism comprises an extrusion block fixedly connected with the inner side wall of the bus contact box, an inclined wall is arranged in the extrusion block near the front end, a limit baffle is fixedly connected with the inner side wall of the extrusion block near the rear end, one side of the limit baffle is fixedly connected with a plurality of springs, and the bus contact box is fixedly connected with the inner wall of the bus chamber through a second fixing bolt.
The utility model is further characterized in that a limiting slide hole is formed in the center of the side wall of the limiting baffle in a penetrating manner, a multi-groove elastic chuck is connected to the inner side wall of the extrusion block in a sliding manner, a plurality of notches are formed in the side wall of the multi-groove elastic chuck, the rear end of the multi-groove elastic chuck is fixedly connected with a spring, a positioning slide rod is fixedly connected to the center of the rear end of the multi-groove elastic chuck, and the side wall of the positioning slide rod is connected with the inner wall of the limiting slide hole of the limiting baffle in a sliding manner.
The utility model is further characterized in that bus insulating sleeves are symmetrically and fixedly connected to the two sides of the switch cabinet at the positions of the bus chamber through first fixing bolts, the bus insulating sleeves are fixedly connected with main buses, the main buses penetrate through the switch cabinet and are fixedly connected, first auxiliary lines are fixedly connected to the inner side walls of the main buses in the bus chamber, and one ends of the first auxiliary lines are fixedly connected with the bus contact box.
The utility model is further characterized in that a current transformer is fixedly connected to the top of the indoor side of the cable, a second auxiliary line is fixedly connected to the current transformer, one end of the second auxiliary line is fixedly connected with the side wall of the outgoing line contact box, and a third auxiliary line is fixedly connected to the bottom of the current transformer, close to the second auxiliary line.
The utility model is further characterized in that one end of the third auxiliary line is fixedly connected with a grounding switch, the side wall of the grounding switch is fixedly connected with the inner wall of the cable chamber, the bottom of the rear end of the grounding switch is fixedly connected with a line arrester, the bottom of the line arrester is fixedly connected with the bottom of the cable chamber, and the bottom of the inner side of the cable chamber is fixedly connected with a zero sequence current transformer close to the rear end.
The utility model is further characterized in that the bottom of the indoor side of the handcart is connected with a breaker handcart in a sliding manner, one side of the breaker handcart is fixedly connected with a plurality of connecting rods, the side walls of the connecting rods are fixedly connected with a plurality of moving contacts, and the side walls of the moving contacts are connected with the inner wall of the protection mechanism in a sliding manner.
The utility model is further characterized in that the front end of the switch cabinet is rotatably connected with an instrument switch door at a position close to the instrument room, the front end of the switch cabinet is rotatably connected with a handcart switch door at a position close to the handcart room, and the front end of the switch cabinet is rotatably connected with a cable switch door at a position close to the cable room.
The beneficial effects of the utility model are as follows:
according to the switch cabinet contact joint protection structure, when the movable contact is connected with the bus contact box and the outgoing contact box, the movable contact is contacted with the multi-groove elastic chuck in the bus contact box and the outgoing contact box, the movable contact moves towards the inside of the multi-groove elastic chuck until the movable contact is at the bottom, then the movable contact drives the multi-groove elastic chuck to go deep into the extrusion block, the movable contact is extruded by the extrusion block in the moving process, the front end position of the multi-groove elastic chuck is contracted inwards, the movable contact is clamped stably, the connection tightness between the movable contact and the contact box is improved, and the problems of short circuit, heating and the like caused by unstable contact can be avoided.
Drawings
The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.
It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is an internal block diagram of the present utility model;
FIG. 4 is an exploded view of FIG. 3 at A;
fig. 5 is a cross-sectional view at a in fig. 3.
In the figure: 1. a switch cabinet; 2. a handcart room; 3. a bus bar chamber; 4. a cable chamber; 5. an instrument room; 6. the handcart is opened and closed; 7. a cable switch door; 8. the instrument switches the door; 9. bus insulating sleeve; 10. a first fixing bolt; 11. a main bus; 12. a circuit breaker trolley; 13. a connecting rod; 14. a moving contact; 15. a busbar contact box; 16. a second fixing bolt; 17. extruding a block; 18. a limit baffle; 19. a multi-groove elastic chuck; 20. a spring; 21. positioning a slide bar; 22. a first auxiliary line; 23. an outgoing line contact box; 24. a second auxiliary line; 25. a current transformer; 26. a third auxiliary line; 27. a grounding switch; 28. a line arrester; 29. zero sequence current transformer.
Description of the embodiments
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
Referring to fig. 1, 2, 3, 4 and 5, a switch cabinet contact joint protection structure comprises a switch cabinet 1, wherein a handcart room 2 is arranged in the middle of the front end inside the switch cabinet 1, a cable room 4 is arranged at the rear end inside the switch cabinet 1 near the bottom, an instrument room 5 is arranged at the position above the handcart room 2 inside the switch cabinet 1, a bus room 3 is arranged at the position above the cable room 4 inside the switch cabinet 1, a bus contact box 15 is fixedly connected to the front end inside the bus room 3 near the bottom, an outgoing line contact box 23 is fixedly connected to the front end inside the cable room 4 near the top, and a connection protection mechanism is fixedly connected to the bus contact box 15 and the outgoing line contact box 23 inside;
the circuit breaker handcart 12 is arranged in the handcart room 2 and used for controlling the connection of the brake contact 14 and the contact box, and the protection mechanism is used for tightly connecting the movable contact 14 and the contact box.
The connection protection mechanism comprises an extrusion block 17 fixedly connected with the inner side wall of the bus contact box 15, an inclined wall is arranged in the extrusion block 17 near the front end, a limit baffle 18 is fixedly connected with the inner side wall of the extrusion block 17 near the rear end, a plurality of springs 20 are fixedly connected with one side of the limit baffle 18, and the bus contact box 15 is fixedly connected with the inner wall of the bus chamber 3 through a second fixing bolt 16;
the circuit breaker handcart 12 is used for controlling the connection and separation of the brake contact 14, the bus contact box 15 and the outlet contact box 23, when the movable contact 14 is connected with the contact box, the movable contact 14 is firstly contacted with the multi-groove elastic clamping head 19, the movable contact 14 moves to the bottom inside the multi-groove elastic clamping head 19, and then the movable contact 14 drives the multi-groove elastic clamping head 19 to penetrate into the extrusion block 17.
The center of the side wall of the limit baffle 18 is provided with a limit sliding hole in a penetrating way, the inner side wall of the extrusion block 17 is connected with a multi-groove elastic chuck 19 in a sliding way, the side wall of the multi-groove elastic chuck 19 is provided with a plurality of notches, the rear end of the multi-groove elastic chuck 19 is fixedly connected with a spring 20, the center of the rear end of the multi-groove elastic chuck 19 is fixedly connected with a positioning sliding rod 21, and the side wall of the positioning sliding rod 21 is connected with the inner wall of the limit sliding hole of the limit baffle 18 in a sliding way;
the front end position inside the extrusion block 17 is provided with a slope, the front end of the multi-groove elastic chuck 19 is also provided with a slope, when the multi-groove elastic chuck 19 moves, the multi-groove elastic chuck 19 can be extruded by the extrusion block 17, the front end position of the multi-groove elastic chuck 19 can shrink inwards, the movable contact 14 can be clamped stably by the shrinkage of the front end of the multi-groove elastic chuck 19, and shaking caused by unstable contact can be avoided.
The two sides of the switch cabinet 1 are symmetrically and fixedly connected with bus insulating sleeves 9 at the positions of the bus chambers 3 through first fixing bolts 10, the bus insulating sleeves 9 are fixedly connected with main buses 11, the main buses 11 penetrate through the switch cabinet 1 and are fixedly connected, first auxiliary lines 22 are fixedly connected to the side walls of the main buses 11 in the bus chambers 3, and one ends of the first auxiliary lines 22 are fixedly connected with bus contact boxes 15;
the bus insulating sleeve 9 is used for avoiding the connection of the main bus 11 with the switch cabinet 1 and avoiding the short circuit of the switch.
The top of the inner side of the cable room 4 is fixedly connected with a current transformer 25, the current transformer 25 is fixedly connected with a second auxiliary line 24, one end of the second auxiliary line 24 is fixedly connected with the side wall of the outlet contact box 23, and the bottom of the current transformer 25 is fixedly connected with a third auxiliary line 26 at a position close to the second auxiliary line 24;
the current transformer 25 can convert the primary current with larger value into the secondary current with smaller value through a certain transformation ratio for protection, measurement and other purposes.
One end of the third auxiliary line 26 is fixedly connected with a grounding switch 27, the side wall of the grounding switch 27 is fixedly connected with the inner wall of the cable chamber 4, the bottom of the rear end of the grounding switch 27 is fixedly connected with a line arrester 28, the bottom of the line arrester 28 is fixedly connected with the bottom of the cable chamber 4, and the position, close to the rear end, of the inner side bottom of the cable chamber 4 is fixedly connected with a zero sequence current transformer 29;
the grounding switch 27 grounds equipment during high-voltage equipment and line maintenance, meets protection requirements, ensures that an obvious mechanical grounding point exists in a loop, ensures no residual voltage of a line, ensures maintenance and line outage safety, and the line arrester 28 limits line lightning overvoltage, improves line lightning resistance level, reduces tripping rate of a system caused by lightning strike faults and is mainly used for protecting and monitoring the circuit.
The bottom of the inner side of the handcart room 2 is slidably connected with a breaker handcart 12, one side of the breaker handcart 12 is fixedly connected with a plurality of connecting rods 13, the side walls of the connecting rods 13 are fixedly connected with a plurality of moving contacts 14, and the side walls of the moving contacts 14 are slidably connected with the inner wall of the protection mechanism;
the circuit breaker trolley 12 is used for controlling the connection and disconnection of the brake contact 14 with the busbar contact box 15 and the outgoing contact box 23.
The position that the switch cabinet 1 front end is close to instrument room 5 rotates and is connected with instrument switch door 8, and the position that the switch cabinet 1 front end is close to handcart room 2 rotates and is connected with handcart switch door 6, and the position that the switch cabinet 1 front end is close to cable chamber 4 rotates and is connected with cable switch door 7.
The instrument switch door 8, the handcart switch door 6 and the cable switch door 7 are used for protecting each sub-room conveniently.
When the utility model is used, the current transformer 25 can convert primary current with larger value into secondary current with smaller value through a certain transformation ratio for protecting and measuring, the grounding switch 27 grounds equipment when high-voltage equipment and lines are overhauled, meets the protection requirement, ensures that obvious mechanical grounding points exist in a loop, determines no residual voltage of the lines, ensures the safety of overhauling and line shutdown, the line arrester 28 limits the line lightning overvoltage, improves the lightning-resistant level of the lines, reduces the tripping rate of the system caused by lightning strike faults, is mainly used for protecting and monitoring the circuits, the zero-sequence current transformer 29 outputs current when the circuits are leaked, cuts off power supply or gives out alarm and other measures, and the breaker handcart 12 is used for controlling the connection and separation of the brake contact 14, the bus contact box 15 and the line outlet contact box 23;
when the movable contact 14 is connected with the contact box, the movable contact 14 is contacted with the multi-groove elastic chuck 19, the movable contact 14 moves towards the inside of the multi-groove elastic chuck 19 until the movable contact 14 reaches the bottom, then the movable contact 14 carries the multi-groove elastic chuck 19 to go deep into the inside of the extrusion block 17, a slope is arranged at the front end position of the inside of the extrusion block 17, the front end of the multi-groove elastic chuck 19 is also provided with a slope, when the multi-groove elastic chuck 19 moves, the front end position of the multi-groove elastic chuck 19 is extruded by the extrusion block 17, the front end of the multi-groove elastic chuck 19 is contracted inwards, the movable contact 14 is clamped stably by contraction of the front end of the multi-groove elastic chuck 19, shaking caused by unstable contact can be avoided, a positioning slide bar 21 is connected with a limiting baffle 18, the positioning slide bar 21 is used for increasing the moving stability of the multi-groove elastic chuck 19, and a spring 20 is used for assisting the multi-groove elastic chuck 19 to restore to the original position after the movable contact 14 is separated from the contact box.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.
The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.
Claims (8)
1. The utility model provides a cubical switchboard contact joint protection architecture, includes cubical switchboard (1), its characterized in that: the utility model discloses a bus bar is characterized in that a handcart room (2) is arranged in the middle of the front end inside a switch cabinet (1), a cable room (4) is arranged at the rear end inside the switch cabinet (1) and close to the bottom, an instrument room (5) is arranged at the upper position inside the switch cabinet (1) and above the handcart room (2), a bus bar room (3) is arranged at the upper position inside the switch cabinet (1), a bus bar contact box (15) is fixedly connected with the front end inside the bus bar room (3) and close to the bottom, a wire outlet contact box (23) is fixedly connected with the front end inside the cable room (4) and close to the top, and a connection protection mechanism is fixedly connected with the bus bar contact box (15) and the wire outlet contact box (23).
2. A switchgear contact terminal protection arrangement according to claim 1, characterized in that: the connection protection mechanism comprises an extrusion block (17) fixedly connected with the inner side wall of the bus contact box (15), an inclined wall is arranged in the extrusion block (17) near the front end, a limit baffle (18) is fixedly connected with the inner side wall of the extrusion block (17) near the rear end, a plurality of springs (20) are fixedly connected with one side of the limit baffle (18), and the bus contact box (15) is fixedly connected with the inner wall of the bus chamber (3) through a second fixing bolt (16).
3. A switchgear contact terminal protection arrangement as claimed in claim 2, wherein: limiting baffle (18) lateral wall central point puts and runs through and has offered spacing slide hole, inside lateral wall sliding connection of extrusion piece (17) has multislot collet (19), a plurality of notches have been seted up to multislot collet (19) lateral wall, multislot collet (19) rear end and spring (20) fixed connection, multislot collet (19) rear end central point puts fixedly connected with location slide bar (21), location slide bar (21) lateral wall and limiting baffle (18) spacing slide hole inner wall sliding connection.
4. A switchgear contact terminal protection arrangement according to claim 1, characterized in that: the position that cubical switchboard (1) both sides are located busbar room (3) is through first fixing bolt (10) symmetry fixedly connected with busbar insulation sleeve (9), busbar insulation sleeve (9) fixedly connected with main busbar (11), main busbar (11) run through cubical switchboard (1) and fixed connection, main busbar (11) are located inside lateral wall fixedly connected with first auxiliary line (22) of busbar room (3), first auxiliary line (22) one end and busbar contact box (15) fixed connection.
5. A switchgear contact terminal protection arrangement according to claim 1, characterized in that: the cable chamber (4) inboard top position fixedly connected with current transformer (25), current transformer (25) fixedly connected with second auxiliary line (24), second auxiliary line (24) one end and wire outlet contact box (23) lateral wall fixed connection, position fixedly connected with third auxiliary line (26) that is close to second auxiliary line (24) bottom current transformer (25).
6. The switchgear contact terminal protection architecture of claim 5, wherein: the utility model discloses a three auxiliary line (26), including cable room (4) and cable loop, the third auxiliary line (26) one end fixedly connected with earthing switch (27), earthing switch (27) lateral wall and cable room (4) inner wall fixed connection, earthing switch (27) rear end bottom position fixedly connected with line arrester (28), line arrester (28) bottom and cable room (4) bottom fixed connection, cable room (4) inboard bottom is close to rear end position fixedly connected with zero sequence current transformer (29).
7. A switchgear contact terminal protection arrangement according to claim 1, characterized in that: the circuit breaker handcart is characterized in that a circuit breaker handcart (12) is slidably connected to the bottom position of the inner side of the handcart chamber (2), a plurality of connecting rods (13) are fixedly connected to one side of the circuit breaker handcart (12), a plurality of moving contacts (14) are fixedly connected to the side walls of the connecting rods (13), and the side walls of the moving contacts (14) are slidably connected with the inner walls of the protection mechanisms.
8. A switchgear contact terminal protection arrangement according to claim 1, characterized in that: the position that switch cabinet (1) front end is close to instrument room (5) rotates and is connected with instrument switch door (8), the position that switch cabinet (1) front end is close to handcart room (2) rotates and is connected with handcart switch door (6), the position that switch cabinet (1) front end is close to cable chamber (4) rotates and is connected with cable switch door (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320347336.XU CN219477248U (en) | 2023-03-01 | 2023-03-01 | Switch cabinet contact joint protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320347336.XU CN219477248U (en) | 2023-03-01 | 2023-03-01 | Switch cabinet contact joint protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219477248U true CN219477248U (en) | 2023-08-04 |
Family
ID=87440001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320347336.XU Active CN219477248U (en) | 2023-03-01 | 2023-03-01 | Switch cabinet contact joint protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219477248U (en) |
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2023
- 2023-03-01 CN CN202320347336.XU patent/CN219477248U/en active Active
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