Main bus fixing structure of low-voltage switchgear assembly

Abstract

The utility model discloses a main bus fixing structure of a low-voltage switchgear assembly, which relates to the technical field of main bus installation and comprises a switch cabinet and a main bus body, one end of the top of the switch cabinet is fixedly connected with a front partition plate, and the other end of the top of the switch cabinet is fixedly connected with a rear partition plate. One side of the front separator plate and one side of the rear separator plate are provided with an adjusting mechanism which can adjust the position of the bus frame supporting crossbeam, and the surface of the bus frame supporting crossbeam is provided with a fixing mechanism which is used for fixing the main bus body. According to the utility model, through the adjusting mechanism, according to various rated current values and short-time withstand current required values of the main bus, under the condition of not being limited by a cabinet body structure and the width of a switch cabinet, the dynamic thermal stability of the main bus can be reliably ensured through setting the distance and the number of firmware of the bus frame supporting cross beams and the main bus frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to main busbar installation technical field, concretely is a kind of low-voltage switchgear main busbar fixing structure. BACKGROUND

[0002] Domestic general low-voltage switchgear main busbar is placed on the top of cabinet, and it is basically fixed busbar frame by cabinet skeleton side beam, and main busbar system is supported by clamping and fixing, but the spacing of main busbar fixing point is not adjustable, and the fixed spacing is limited by the width of cabinet, and for high-current, short-time current resistance requirement high main busbar system, there is limitation in guaranteeing the dynamic thermal stability of main busbar.

[0003] Based on this, a low-voltage switchgear main busbar fixing structure is provided, which can eliminate the drawbacks of existing devices. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of low-voltage switchgear main busbar fixing structure to solve the problem that the spacing of main busbar fixing point is not adjustable in the background art, and the fixed spacing is limited by the width of cabinet.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A low-voltage switchgear main busbar fixing structure includes a switchgear and a main busbar body, the top of the switchgear is fixedly connected with a front partition plate at one end and a rear partition plate at the other end, one side of the front partition plate and the rear partition plate is provided with an adjusting mechanism that can adjust the position of the busbar frame support beam, and the surface of the busbar frame support beam is provided with a fixing mechanism for fixing the main busbar body.

[0007] On the basis of the above technical scheme, the utility model also provides the following optional technical scheme:

[0008] In an optional scheme, the adjusting mechanism includes a fixing bracket, a connecting slot, a first screw hole, a first screw, a second screw hole and a second screw, one side of the front partition plate and the rear partition plate is fixedly connected with two groups of fixing brackets, the surface of the fixing bracket is provided with a connecting slot, the top of the fixing bracket is provided with a plurality of first screw holes, the inner wall of the first screw hole is threadedly connected with a first screw, the surface of the front partition plate and the rear partition plate is provided with a plurality of second screw holes, the inner wall of the second screw hole is slidably connected with a second screw, the inner wall of the connecting slot is slidably connected with a plurality of busbar frame support beams, and one end of the first screw and the second screw cooperates with the busbar frame support beam.

[0009] In an optional scheme, the inner wall size of the connecting slot is consistent with the outer wall size of one end of the busbar frame support beam.

[0010] In an optional solution: the fixing mechanism comprises a first bolt hole, a first clamping groove, a main busbar frame, a second clamping groove, a second bolt hole, a bolt and a nut, the surface of the busbar frame support crossbeam is provided with a plurality of groups of first bolt holes, the top of the busbar frame support crossbeam is provided with a plurality of groups of first clamping grooves, the surface of the first clamping groove is slidably connected with a main busbar body, the top of the main busbar body is slidably connected with a main busbar frame, the top of the main busbar frame is provided with a plurality of groups of second clamping grooves, the top of the main busbar frame is provided with a plurality of groups of second bolt holes, the inner wall of the first bolt hole and the second bolt hole is threadedly connected with a bolt, and one end of the bolt is threadedly connected with a nut.

[0011] In an optional solution: the inner wall size of the first clamping groove and the second clamping groove is consistent with the outer wall size of the main busbar body.

[0012] In an optional solution: the surface of the bolt is slidably connected with a gasket.

[0013] In an optional solution: the top of the switch cabinet is fixedly connected with two groups of support frames.

[0014] In an optional solution: the surface of the support frame is provided with a plurality of groups of fixing holes, the inner wall of the fixing hole is threadedly connected with a fixing screw, and one end of the fixing screw is matched with the busbar frame support crossbeam.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] The utility model discloses a regulating mechanism, can according to the various rated current value of main busbar, short time withstand current requirement value, under the condition of not being restricted by cabinet structure and switch cabinet width, through setting the fastener distance and quantity of busbar frame support crossbeam and main busbar frame, thereby reliably guaranteeing the main busbar dynamic thermal stability. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structural schematic diagram of the utility model.

[0018] Figure 2 It is the structural schematic diagram of the switch cabinet and front baffle cooperation of the utility model.

[0019] Figure 3 It is the regulating mechanism structural schematic diagram of the utility model.

[0020] Figure 4 It is the first clamping groove and main busbar body cooperation structural schematic diagram of the utility model.

[0021] Figure 5 It is the fixing mechanism structural schematic diagram of the utility model.

[0022] Reference sign annotation: 1, switch cabinet; 2, main bus body; 3, front partition; 4, rear partition; 5, adjusting mechanism; 501, fixed frame; 502, connecting groove; 503, first screw hole; 504, first screw; 505, second screw hole; 506, second screw; 6, bus frame support beam; 7, fixing mechanism; 701, first bolt hole; 702, first clamping groove; 703, main bus frame; 704, second clamping groove; 705, second bolt hole; 706, bolt; 707, nut; 8, washer; 9, support frame; 10, fixing hole; 11, fixing screw. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail with the help of the drawings and examples.

[0024] In one embodiment, as shown in Figures 1-5 A low-voltage complete switchgear main bus fixing structure, comprising a switch cabinet 1 and a main bus body 2, one end of the top of the switch cabinet 1 is fixedly connected with a front partition 3, the other end is fixedly connected with a rear partition 4, one side of the front partition 3 and the rear partition 4 is provided with an adjusting mechanism 5 that can adjust the position of the bus frame support beam 6, the position of the bus frame support beam 6 can be adjusted, so that the fixing point of the main bus can be moved, the surface of the bus frame support beam 6 is provided with a fixing mechanism 7 for fixing the main bus body 2, which is used to fix the main bus body 2 on the bus frame support beam 6 and the main bus frame 703.

[0025] In one embodiment, as shown in Figure 2 The adjusting mechanism 5 comprises a fixed frame 501, a connecting groove 502, a first screw hole 503, a first screw 504, a second screw hole 505 and a second screw 506, one side of the front partition 3 and the rear partition 4 is fixedly connected with two groups of fixed frames 501, the surface of the fixed frame 501 is provided with a connecting groove 502, the top of the fixed frame 501 is provided with a plurality of first screw holes 503, the inner wall of the first screw hole 503 is threadedly connected with a first screw 504, the surface of the front partition 3 and the rear partition 4 is provided with a plurality of second screw holes 505, the inner wall of the second screw hole 505 is slidably connected with a second screw 506, the inner wall of the connecting groove 502 is slidably connected with a plurality of bus frame support beams 6, one end of the first screw 504 and the second screw 506 cooperates with the bus frame support beam 6, the bus frame support beam 6 is inserted in the connecting groove 502, the first screw 504 and the second screw 506 are screwed, one end of the first screw 504 penetrates the first screw hole 503 and is threadedly connected with the bus frame support beam 6, one end of the second screw 506 penetrates the second screw hole 505 and is threadedly connected with the bus frame support beam 6, so that the bus frame support beam 6 can be fixed on the front partition 3 and the rear partition 4.

[0026] In one embodiment, as shown in Figure 2 The inner wall size of the connecting groove 502 matches the outer wall size of one end of the busbar frame support cross beam 6, and the connecting groove 502 can limit the sliding of the busbar frame support cross beam 6 when the busbar frame support cross beam 6 slides inside the connecting groove 502, thereby preventing the busbar frame support cross beam 6 from shaking inside the connecting groove 502.

[0027] In one embodiment, as shown in Figures 4-5 The surface of the busbar frame support cross beam 6 is provided with a plurality of first bolt holes 701, the top of the busbar frame support cross beam 6 is provided with a plurality of first clamping grooves 702, the surface of the first clamping groove 702 is slidingly connected with the main busbar body 2, the top of the main busbar body 2 is slidingly connected with the main busbar frame 703, the top of the main busbar frame 703 is provided with a plurality of second clamping grooves 704, the top of the main busbar frame 703 is provided with a plurality of second bolt holes 705, the inner walls of the first bolt holes 701 and the second bolt holes 705 are threadedly connected with the bolts 706, one end of the bolt 706 is threadedly connected with the nut 707, the main busbar body 2 is inserted into the first clamping groove 702, the main busbar frame 703 is connected with the main busbar body 2 through the second clamping groove 704, the bolt 706 is screwed, the bolt 706 penetrates the first bolt hole 701, the second bolt hole 705 and the washer 8 and is threadedly connected with the nut 707, so that the busbar frame support cross beam 6 and the main busbar frame 703 can be fixed on the main busbar body 2, and the main busbar body 2 can be fixed on the switch cabinet 1.

[0028] In one embodiment, as shown in Figure 4 The inner wall size of the first clamping groove 702 and the second clamping groove 704 matches the outer wall size of the main busbar body 2, so that the main busbar body 2 can be clamped on the busbar frame support cross beam 6 and the main busbar frame 703.

[0029] In one embodiment, as shown in Figure 5 The surface of the bolt 706 is slidingly connected with the washer 8, which is used to protect the surface of the main busbar frame 703 from being scratched by the nut 707.

[0030] In one embodiment, as shown in Figure 3 The top of the switch cabinet 1 is fixedly connected with two groups of support frames 9, which are used to support the busbar frame support cross beam 6.

[0031] In one embodiment, as shown in Figure 3As shown, the surface of the support frame 9 is provided with a plurality of fixing holes 10, the inner wall of the fixing hole 10 is threadedly connected with a fixing screw 11, one end of the fixing screw 11 is matched with the busbar frame support beam 6, the fixing screw 11 is screwed, the fixing screw 11 is threadedly connected with the busbar frame support beam 6 through the fixing hole 10, the busbar frame support beam 6 can be fixed on the support frame 9, and the fixing of the busbar frame support beam 6 is more stable.

[0032] Working principle: the above embodiment discloses a low-voltage switchgear main bus fixing structure, wherein, in use, the busbar frame support beam 6 is inserted into the connecting groove 502, the first screw 504 and the second screw 506 are screwed, one end of the first screw 504 is threadedly connected with the busbar frame support beam 6 through the first screw hole 503, one end of the second screw 506 is threadedly connected with the busbar frame support beam 6 through the second screw hole 505, the busbar frame support beam 6 can be fixed on the front partition plate 3 and the rear partition plate 4, the main bus body 2 is inserted into the first clamping groove 702, the main bus frame 703 is connected with the main bus body 2 through the second clamping groove 704, the bolt 706 is screwed, the bolt 706 is threadedly connected with the nut 707 through the first bolt hole 701, the second bolt hole 705 and the washer 8, the busbar frame support beam 6 and the main bus frame 703 can be fixed on the main bus body 2, the main bus body 2 can be fixed on the switch cabinet 1, in the case that the main bus rated current is large, the first screw 504, the second screw 506 and the fixing screw 11 are unscrewed, the busbar frame support beam 6 can be moved, by adjusting the position of the busbar frame support beam 6, the fixed distance of the busbar frame support beam 6 and the main bus frame 703 or the number of the busbar frame support beam 6 and the main bus frame 703 can be controlled in the cabinet width direction, and the main bus dynamic thermal stability is ensured, so that the main bus fixing scheme is suitable for various cabinet types, and has higher adaptability.

[0033] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A main busbar fixing structure for a low-voltage switchgear assembly, comprising a switch cabinet (1) and a main busbar body (2), wherein a front partition (3) is fixedly connected to one end of the top of the switch cabinet (1), and a rear partition (4) is fixedly connected to the other end, characterized in that: One side of the front partition (3) and the rear partition (4) is provided with an adjustment mechanism (5) that can adjust the position of the busbar frame support beam (6), and the surface of the busbar frame support beam (6) is provided with a fixing mechanism (7) for fixing the main busbar body (2).

2. The main busbar fixing structure for a low-voltage switchgear assembly according to claim 1, characterized in that: The adjustment mechanism (5) includes a fixing bracket (501), a connecting groove (502), a first screw hole (503), a first screw (504), a second screw hole (505), and a second screw (506). Two sets of fixing brackets (501) are fixedly connected to one side of the front partition (3) and the rear partition (4). The surface of the fixing bracket (501) is provided with a connecting groove (502), and the top of the fixing bracket (501) is provided with multiple sets of first screw holes (503). The inner wall of the first screw hole (503) is threaded with a first screw (504). The surfaces of the front partition (3) and the rear partition (4) are provided with multiple sets of second screw holes (505). The inner wall of the second screw hole (505) is slidably connected with a second screw (506). The inner wall of the connecting groove (502) is slidably connected with multiple sets of busbar frame support beams (6). One end of the first screw (504) and the second screw (506) is engaged with the busbar frame support beams (6).

3. The main busbar fixing structure for a low-voltage switchgear assembly according to claim 2, characterized in that: The inner wall dimension of the connecting groove (502) matches the outer wall dimension of one end of the busbar frame support beam (6).

4. The main busbar fixing structure for a low-voltage switchgear assembly according to claim 2, characterized in that: The fixing mechanism (7) includes a first bolt hole (701), a first slot (702), a main busbar frame (703), a second slot (704), a second bolt hole (705), a bolt (706), and a nut (707). Multiple sets of first bolt holes (701) are provided on the surface of the busbar frame supporting beam (6), and multiple sets of first slots (702) are provided on the top of the busbar frame supporting beam (6). The surface of the first slot (702) is slidably connected to... The main busbar body (2) has a main busbar frame (703) slidably connected to its top. The main busbar frame (703) has multiple sets of second slots (704) on its top and multiple sets of second bolt holes (705) on its top. The inner walls of the first bolt hole (701) and the second bolt hole (705) are threaded with bolts (706), and one end of the bolt (706) is threaded with a nut (707).

5. The main busbar fixing structure for a low-voltage switchgear assembly according to claim 4, characterized in that: The inner wall dimensions of the first slot (702) and the second slot (704) match the outer wall dimensions of the main bus body (2).

6. The main busbar fixing structure for a low-voltage switchgear assembly according to claim 4, characterized in that: The bolt (706) has a washer (8) slidably connected to its surface.

7. The main busbar fixing structure for a low-voltage switchgear assembly according to claim 1, characterized in that: The top of the switch cabinet (1) is fixedly connected to two sets of support frames (9).

8. The main busbar fixing structure of a low-voltage switchgear assembly according to claim 7, characterized in that: The surface of the support frame (9) has multiple sets of fixing holes (10), and the inner wall of the fixing holes (10) is threaded with fixing screws (11). One end of the fixing screws (11) is engaged with the busbar frame support beam (6).

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