CN117317838A - An electrical switch cabinet installation structure - Google Patents

Abstract

An installation structure of an electrical switch cabinet, including: a switch cabinet body, the middle partition plate is located in the inner section of the busbar room to install busbar contacts; the space below the busbar room is a cable room, and the outlet contacts are electrically connected to current mutual inductors The current transformer is electrically connected to the grounding switch, and the grounding switch is electrically connected to the line lightning arrester; the upper part of the other side of the middle partition is connected to the L-shaped placement plate through bolts, and the bottom end of the handcart indoor is installed with a track , An automatic socket blocking mechanism is installed above the end of the track near the middle partition to facilitate maintenance and protection. The U-shaped touch panels of the circuit breaker near the lower end of the middle partition are fixedly connected to the U-shaped contact plate of the automatic blocking mechanism for the socket. It is easy to install and disassemble, and the cabinet door is a closed structure. Maintenance and disassembly starts from the L-shaped heat dissipation cover at the top, or from the side cabinet door 3. The circuit breaker can be completely isolated from the components in the switch cabinet. , its safety index is improved.

Description

An electrical switch cabinet installation structure

Technical field

The invention relates to the field of switch cabinet installation structures, and in particular to an electrical switch cabinet installation structure.

Background technique

The switch cabinet is a kind of electrical equipment. The external line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc. Some also have high-voltage chamber and low-voltage chamber switch cabinets and high-voltage busbars, such as power plants, etc. Some also have low-cycle circuits to protect the main equipment. load shedding.

The main function of switchgear is to open and close, control and protect electrical equipment during the power generation, transmission, distribution and power conversion processes of the power system. The components in the switch cabinet mainly include circuit breakers, isolating switches, load switches, operating mechanisms, transformers and various protection devices. There are many ways to classify switch cabinets. For example, they can be divided into removable switch cabinets and fixed switch cabinets according to the circuit breaker installation method; or according to the different cabinet structures, they can be divided into open switch cabinets, metal-enclosed switch cabinets, and metal-enclosed switch cabinets. Closed armored switch cabinet; according to different voltage levels, it can be divided into high-voltage switch cabinet, medium-voltage switch cabinet and low-voltage switch cabinet. Mainly suitable for various occasions such as power plants, substations, petrochemical industry, metallurgical steel rolling, light industry and textile, factories and mines, residential areas, high-rise buildings, etc.

In the prior art, when the electrical switch cabinet is being repaired, the installation of the circuit breaker cannot be completely isolated from the components in the switch cabinet, and the risk of electric shock may easily occur. And after the pull-out components are repaired and returned to their positions, the stability of the circuit breaker is poor.

Contents of the invention

In view of the above-mentioned deficiencies in the prior art, the present invention provides an installation structure of an electrical switch cabinet, which is easy to install and disassemble, and the cabinet door is a closed structure. Maintenance and disassembly starts from the L-shaped heat dissipation cover at the top, or from With three side cabinet doors, the circuit breaker can be completely isolated from the components in the switch cabinet, and its safety index is improved.

In order to achieve the above-mentioned object of the invention, the technical solutions adopted by the present invention are:

An installation structure of an electrical switch cabinet, including: a switch cabinet body, a vertical middle partition plate is installed in the middle of the switch cabinet body, the bottom end of the middle partition plate is connected to the bottom plate through bolts, and the upper part of one side of the middle partition plate is fixed by bolts Connect the L-shaped partition, and the space between the L-shaped partition and the middle partition is the busbar room, and the middle partition is located in the inner section of the busbar room to install the busbar contacts;

The space below the busbar room is a cable room. The cable room includes: outlet contacts installed on the middle partition. The outlet contacts are electrically connected to a current transformer, and the current transformer is electrically connected to a grounding switch. , the grounding switch is electrically connected to the line arrester;

The upper part of the other side of the middle partition is connected to the L-shaped placement plate through bolts. The other side of the L-shaped placement plate is installed with side protection plate 1. The space between the L-shaped placement plate and side protection plate 1 is for instruments. room, a microcomputer protection mechanism is installed in the middle of the outer side of the side protective plate;

The switch cabinet body includes: an L-shaped heat dissipation cover plate located at the top for opening the busbar chamber. The L-shaped heat dissipation cover plate and bottom plate are both snap-fitted to the back plate located on the back side of the switch cabinet body and located in front of the switch cabinet body. The side cabinet door, the middle part of the back panel is hinged to the side cabinet door 3 located in the middle of one side of the switch cabinet body, and the space opened by the side cabinet door 3 is a handcart room;

A track is installed at the bottom of the indoor compartment of the handcart, and the track can be slidably adapted to the circuit breaker. When the switch cabinet body is in working state, side contact one and side contact two of the circuit breaker are inserted into the inner side of the busbar contact and the outlet contact respectively. On the inside of the head, the circuit breaker is connected to the locking block mechanism above the three ends of the side cabinet door. The bottom end of the L-shaped placement plate is fixedly connected to the side slot of the locking block mechanism. The track is close to the upper end of the middle partition board. Install an automatic socket shielding mechanism that facilitates maintenance and protection. The circuit breaker is fixedly connected to U-shaped touch panels that contact the socket automatic shielding mechanism on both sides of the lower end of the middle partition.

The advantages of the present invention compared with the prior art are:

1. Avoid the side opening of the existing technology, and start the inspection from the top during maintenance;

2. The circuit breaker in the handcart room has a pull-out structure, and is fixed in position by placing the clamping block inside the side slot, which is safer and more stable than the direct pop-up method in the prior art;

3. The control baffle 1 and baffle 2 of the connecting rod structure respectively block the socket of the bus contact and the socket of the outlet contact. During maintenance, the insulation is high and the safety index is high. If the switch cabinet is in operation, the baffle 1 and The second baffle can also insulate the upper and lower wires respectively.

4. There are busbar rooms, cable rooms equipped with grounding and lightning arresters, and handcart rooms respectively to separate the lines of each electrical component from each other to avoid entanglement, which not only facilitates installation and maintenance by workers, but also increases the heat dissipation effect of the lines and improves safety. sex.

As an improvement, the sides of the L-shaped partition plate are connected to the second side protection plate through bolts.

As an improvement, the microcomputer protection mechanism is electrically connected to the components in the switch cabinet body, and the microcomputer protection mechanism includes: a live display light, a status indicator light and an operating handle.

As an improvement, the L-shaped heat dissipation cover is provided with heat dissipation holes on both sides and upper part.

As an improvement, the cabinet door includes: side cabinet door 1 and side cabinet door 2 that are snap-fitted to each other. A transparent window is clipped onto the upper part of the side cabinet door 2, and a plurality of insulating rings are installed on the transparent window.

As an improvement, the locking block mechanism includes: a telephone linear rope fixedly connected to the circuit breaker. The other end of the telephone linear rope is fixedly connected to a clamping block inserted inside the side slot. The clamping block is hinged to the outside of the U-shape. The U-shaped outer ring can go around the other end of the clamping block.

As an improvement, the automatic socket blocking mechanism includes: baffle 1 and baffle 2 that respectively block the socket of the busbar contact and the socket of the outlet contact. The two sides of the baffle 1 and the baffle 2 are respectively fixedly connected to the U-shaped seat. 1 and U-shaped seat 2. The U-shaped seat 1 is fixedly connected to the side link 1, the bottom end of the side link is hinged to the Z-shaped link 1, the Z-shaped link 1 is hinged to the side support, and the side support Fixed on the inside of the U-shaped seat, the U-shaped seat is installed above the track, the U-shaped seat two is fixedly connected to the side link two, the side link two is hinged to the side link three, and the side link three is hinged to Z The second Z-shaped connecting rod is hinged with the first Z-shaped connecting rod, and the U-shaped touch plate can contact the hinged joint of the second Z-shaped connecting rod and the first Z-shaped connecting rod.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention;

Figure 2 is a schematic diagram of the explosion structure of the present invention;

Figure 3 is a schematic diagram 2 of the explosion structure of the present invention;

Figure 4 is a schematic structural diagram of the linkage control socket automatic blocking mechanism of the present invention;

Reference symbol comparison table:

1-switch cabinet body, 2-handcart room, 21-side contact one, 22-track, 23-U-shaped touch plate, 3-cable room, 30-outlet contact, 31-current transformer, 32- Line arrester, 33-grounding switch, 4-instrument room, 41-L-shaped placement plate, 5-socket automatic blocking mechanism, 501-U-shaped seat, 50-baffle one, 51-baffle two, 52-U-shaped seat 1. 53-U-shaped seat 2, 54-side link 1, 55-Z-shaped link 1, 56-side link 2, 57-side link 3, 58-side support, 59-Z-shaped link 2. 6-busbar room, 60-busbar contact, 61-L-shaped partition, 7-microcomputer protection mechanism, 70-operating handle, 71-live display light, 72-status indicator light, 8-lock block mechanism, 80-telephone linear rope, 81-clamp block, 82-U-shaped outer ring, 9-middle partition, 10-bottom plate, 11-L-shaped heat dissipation cover, 12-cabinet door, 1201-side cabinet door one, 1202 -Side cabinet door two, 1203-transparent window, 1204-insulation ring, 13-side protective plate two, 14-side protective plate one, 15-side cabinet door three.

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Identical components are designated with the same reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings, and the words "inside" and "outside" ” refers to the direction toward or away from the geometric center of a specific part, respectively.

In order to make the content of the present invention easier to understand clearly, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

As shown in Figures 1 to 4, an electrical switch cabinet installation structure includes: a switch cabinet body 1. A vertical middle partition 9 is installed in the middle of the switch cabinet body 1. The bottom end of the middle partition 9 is fixedly connected with bolts. The bottom plate 10, the upper part of one side of the middle partition 9 is connected to the L-shaped partition 61 through bolts, and the space between the L-shaped partition 61 and the middle partition 9 is the busbar chamber 6, and the middle partition 9 is located on the busbar Bus contacts 60 are installed on the inner section of room 6;

The space below the busbar room 6 is a cable room 3. The cable room 3 includes: an outlet contact 30 installed on the middle partition 9. The outlet contact 30 is electrically connected to a current transformer 31. The transformer 31 is electrically connected to the grounding switch 33, and the grounding switch 33 is electrically connected to the line arrester 32;

The upper part of the other side of the middle partition 9 is connected to the L-shaped placement plate 41 through bolts. The other side of the L-shaped placement plate 41 is installed with a side protection plate 14. The L-shaped placement plate 61 and the side protection plate 14 The space between is the instrument room 4, and a microcomputer protection mechanism 7 is installed in the middle of the outer side of the side protection plate 14;

The switch cabinet body 1 includes: an L-shaped heat dissipation cover 11 located at the top for opening the busbar chamber 6. The L-shaped heat dissipation cover 11 and the bottom plate 10 are both snap-fitted to the back plate located on the back side of the switch cabinet body 1. And the cabinet door 12 is located on the front side of the switch cabinet body 1. The middle part of the back panel is hinged to the side cabinet door 315 located in the middle of one side of the switch cabinet body 1. The opening space of the side cabinet door 315 is the handcart room 2;

A track 22 is installed at the bottom end of the handcart room 2, and the track 22 can slide to adapt to the circuit breaker 20. When the switch cabinet body 1 is in working state, the first side contact 21 and the second side contact 24 of the circuit breaker 20 Insert the inner side of the bus contact 60 and the inner side of the outlet contact 30 respectively. The circuit breaker 20 is connected to the locking block mechanism 8 above the third end 15 of the side cabinet door. The bottom end of the L-shaped placement plate 61 is fixedly connected to the adapting locking block. The side slot 25 of the mechanism 8, the track 22 is installed above the 9 end of the middle partition plate to facilitate maintenance and protection, and the automatic socket shielding mechanism 5 is installed. The circuit breaker 20 is fixedly connected to the contact socket automatically on both sides of the lower part of the 9 end of the middle partition plate. The U-shaped touch plate 23 of the shielding mechanism 5 .

As shown in Figure 1: The side of the L-shaped partition 61 is connected to the side protection plate 2 13 through bolts. The microcomputer protection mechanism 7 is electrically connected to the components in the switch cabinet body 1 . The microcomputer protection mechanism 7 includes: a live display light 71 , a status indicator light 72 and an operating handle 70 . The L-shaped heat dissipation cover 11 is provided with heat dissipation holes on both sides and upper part. The cabinet door 12 includes: a side cabinet door 1201 and a side cabinet door 1202 that are snap-fitted to each other. A transparent window 1203 is clipped onto the upper part of the side cabinet door 1202, and a plurality of insulating rings 1204 are installed on the transparent window 1203.

As shown in Figure 1, the locking block mechanism 8 includes: a telephone linear rope 80 fixedly connected to the circuit breaker 20. The other end of the telephone linear rope 80 is fixedly connected to a clamping block 81 inserted inside the side slot 25. The clamping block 81 The U-shaped outer ring 82 is hinged, and the U-shaped outer ring 82 can bypass the other end of the clamping block 81 .

As shown in Figure 4: the socket automatic blocking mechanism 5 includes: a baffle 50 and a baffle 2 51 that respectively block the busbar contact socket and the outlet contact socket. The two sides of the baffle 50 and the baffle 2 51 are respectively fixedly connected to U The first U-shaped seat 52 and the second U-shaped seat 53 are fixedly connected to the side link 54. The bottom end of the side link 54 is hinged to the Z-shaped link 55, and the Z-shaped link 55 is hinged to the side support 58. , the side support 58 is fixed inside the U-shaped seat 501, the U-shaped seat 501 is installed above the track 22, the U-shaped seat 53 is fixedly connected to the side link 2 56, the side link 56 is hinged to the side link 3 57, and the side link 56 is connected to the side link 56. Rod three 57 is hinged to Z-shaped link two 59, Z-shaped link two 59 is hinged to Z-shaped link one 55, and the U-shaped touch plate 23 can contact the hinge of Z-shaped link two 59 and Z-shaped link one 55. at.

The L-shaped placement plate 61 is fixed with the side protection plate 14 with rivets. When the L-shaped heat dissipation cover 11 is opened from the top, the risk of accidental electric shock is small. The cable room 3 is located at the lower part of the switch cabinet body 1. In addition to the cables connecting the lines, , as well as a current transformer 31, a grounding switch 33, and a line arrester 32 to increase the safety of the operation of the switch cabinet body 1. Before pushing the circuit breaker 20 in the handcart room into the cabinet, check the contacts and the U-shaped touch plate 23 contacts At the hinge of Z-shaped link two 59 and Z-shaped link one 55, push Z-shaped link two 59 and Z-shaped link one 55, so that baffle one 50 and baffle two 51 are separated from the busbar contact socket and the outlet contact. The first side contact 21 and the second side contact 24 are inserted into the inner side of the bus contact 60 and the inner side of the outlet contact 30 respectively.

The above are only preferred embodiments of the patent of the present invention and are not intended to limit the patent of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the patent of the present invention shall be included in this patent. Within the scope of protection of invention patents.

Claims (7)

1. An electrical switch cabinet installation structure, including: a switch cabinet body (1), characterized in that a vertical middle partition (9) is installed in the middle of the switch cabinet body (1), and the bottom of the middle partition (9) The end is connected to the bottom plate (10) by bolts, and the upper part of one side of the middle partition (9) is fixedly connected to the L-shaped partition (61) by bolts, and between the L-shaped partition (61) and the middle partition (9) The space is the busbar room (6), and the middle partition (9) is located in the inner section of the busbar room (6) to install the busbar contacts (60); The space below the busbar room (6) is a cable room (3). The cable room (3) includes: an outlet contact (30) installed on the middle partition (9). The outlet contact (30) ) is electrically connected to the current transformer (31), the current transformer (31) is electrically connected to the grounding switch (33), and the grounding switch (33) is electrically connected to the line arrester (32); The upper part of the other side of the middle partition (9) is fixedly connected to an L-shaped placement plate (41) through bolts, and a side protection plate (14) is installed on the other side of the L-shaped placement plate (41). The space between the board (61) and the side protective plate (14) is the instrument room (4), and a microcomputer protection mechanism (7) is installed in the middle of the outer side of the side protective plate (14); The switch cabinet body (1) includes: an L-shaped heat dissipation cover (11) located at the top for opening the busbar chamber (6). The L-shaped heat dissipation cover (11) and the bottom plate (10) are both snap-fitted. The back plate is located on the back side of the switch cabinet body (1) and the cabinet door (12) is located on the front side of the switch cabinet body (1). The middle part of the back plate is hinged to the three side cabinet doors located in the middle part of one side of the switch cabinet body (1). (15), the space opened by the three side cabinet doors (15) is the handcart room (2); A track (22) is installed at the inner bottom of the handcart room (2), and the track (22) can slide to adapt to the circuit breaker (20). When the switch cabinet body (1) is in working state, the circuit breaker (20) Side contact one (21) and side contact two (24) are inserted into the inside of the bus contact (60) and the inside of the outlet contact (30) respectively. The circuit breaker (20) is close to the third (15) end of the side cabinet door. The upper part is connected to the locking block mechanism (8), the bottom end of the L-shaped placement plate (61) is fixedly connected to the side slot (25) of the adapting locking block mechanism (8), and the track (22) is close to the middle partition An automatic socket blocking mechanism (5) is installed above the end (9) to facilitate maintenance and protection. The circuit breaker (20) is close to the middle partition (9) and both sides of the lower end are fixedly connected to the U-shaped socket automatic blocking mechanism (5). Touchpad(23). 2. An electrical switch cabinet installation structure according to claim 1, characterized in that: the side of the L-shaped partition (61) is connected to the second side protection plate (13) through bolts. 3. An electrical switch cabinet installation structure according to claim 1, characterized in that: the microcomputer protection mechanism (7) is electrically connected to components in the switch cabinet body (1), and the microcomputer protection mechanism (7) Including: live indicator light (71), status indicator light (72) and operating handle (70). 4. An electrical switch cabinet installation structure according to claim 1, characterized in that: the L-shaped heat dissipation cover (11) is provided with heat dissipation holes on both sides and upper part. 5. An electrical switch cabinet installation structure according to claim 1, characterized in that: the cabinet door (12) includes: side cabinet door one (1201) and side cabinet door two (1202) that are snap-connected to each other, A transparent window (1203) is connected to the upper part of the second side cabinet door (1202), and several insulating rings (1204) are installed on the transparent window (1203). 6. An electrical switch cabinet installation structure according to claim 1, characterized in that: the locking block mechanism (8) includes: a telephone linear rope (80) fixedly connected to the circuit breaker (20), so The other end of the telephone linear rope (80) is fixedly connected to the clamping block (81) inserted inside the side slot (25). The clamping block (81) is hinged to the U-shaped outer ring (82), and the U-shaped outer ring (82) can bypass the other end of the blocking block (81). 7. An electrical switch cabinet installation structure according to claim 1, characterized in that the automatic socket blocking mechanism (5) includes: a baffle (50) that blocks the busbar contact socket and the outlet contact socket respectively. and baffle two (51). The two sides of the baffle one (50) and the baffle two (51) are respectively fixedly connected to the U-shaped seat one (52) and the U-shaped seat two (53). The U-shaped seat one (52) is fixedly connected to the side connecting rod one (54), the bottom end of the side connecting rod one (54) is hinged to the Z-shaped connecting rod one (55), and the Z-shaped connecting rod one (55) is hinged to the side support (58), The side support (58) is fixed inside the U-shaped seat (501), the U-shaped seat (501) is installed above the track (22), and the second U-shaped seat (53) is fixedly connected to the two side connecting rods ( 56), the second side link (56) is hinged to the third side link (57), the third side link (57) is hinged to the second Z-shaped link (59), and the second Z-shaped link (59) It is hinged with Z-shaped connecting rod one (55), and the U-shaped touch plate (23) can contact the hinge of Z-shaped connecting rod two (59) and Z-shaped connecting rod one (55).