A fixed partition switch cabinet

Abstract

The present invention provides a fixed partition switch cabinet, comprising: a cabinet, a busbar is arranged in a vertical channel of the cabinet; a busbar cover is used to shield and protect the busbar, one end of the busbar cover is hinged to the cabinet, and the other end is detachably connected to the cabinet. The hinged installation method makes it faster and more convenient to disassemble and assemble the busbar cover, and compared with the prior art method in which the busbar cover is connected to the cabinet by bolts, the maintenance efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of switch cabinets, and in particular to a fixed partition type switch cabinet. Background Art

[0002] The fixed-partition drawer-type switch cabinet adopts a closed shell made of steel plates. The electrical components of the incoming and outgoing line circuits are installed in the withdrawable drawers, forming a functional unit that can complete a certain type of power supply task. The drawer-type switch cabinet has high reliability, safety and interchangeability. It is a relatively advanced switch cabinet. As a centralized control distribution center, it is widely used in industrial and mining enterprises and high-rise buildings that require high power supply reliability.

[0003] The traditional fixed partition drawer switch cabinet has the following defects: 1) Figure 7 As shown, the cabinet 01 is provided with a plurality of busbar covers 03 distributed from top to bottom and suitable for shielding the vertical channel busbar 02. Both sides of each busbar cover 03 are fixedly connected to the cabinet 01 by a plurality of bolts. This makes disassembly and assembly very inconvenient, resulting in maintenance personnel often ignoring the busbar cover 03. If screws or rust fall into the cabinet during assembly, or dust accumulates for a long time, a short circuit will be formed between the phases of the vertical channel busbar, resulting in the burning of the cabinet. 2) The panels of the existing drawer 04 are connected by welding or fixed by bolts, such as Figure 8 As shown, a circuit breaker 05 for controlling the incoming busbar and the on-off of the busbar is provided in the drawer 04, and a plug-in 06 for plugging into the vertical channel busbar is provided on the rear panel of the drawer 04. When the circuit breaker 05 needs to be replaced, the drawer 04 needs to be pulled out, so that each time the drawer 04 is pushed in and out, there will be friction between the plug-in 06 and the busbar, which will increase the resistance of the contact part, and it is easy to burn out under long-term action, thereby shortening the service life. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the defect of inconvenient assembly and disassembly of the busbar cover in the prior art, thereby providing a fixed partition switch cabinet that is quick and convenient to assemble and disassemble.

[0005] To this end, the present invention provides a fixed-separation switch cabinet, comprising a cabinet body and a busbar cover, wherein a busbar is provided in a vertical channel of the cabinet body; the busbar cover is used to shield and protect the busbar, wherein one end of the busbar cover is hinged to the cabinet body, and the other end is detachably connected to the cabinet body.

[0006] The busbar cover is one and is arranged along the length direction of the busbar.

[0007] The other end of the busbar cover is detachably connected to the cabinet body through bolts.

[0008] The other end of the busbar cover is detachably connected to the cabinet body through a locking piece.

[0009] An electrical interlocking structure is provided between the busbar cover and a first circuit breaker that controls the power-on or power-off state of the busbar.

[0010] The first circuit breaker has a closing coil X, an opening coil F, a closing button SB1, an opening button SB2 and an auxiliary switch, the auxiliary switch has a first normally closed contact DL1 and a first normally open contact DL2, and the electrical interlocking structure includes: a travel switch, which is arranged on the cabinet, and has a second normally closed contact SQ1 and a second normally open contact SQ2, and the travel switch is driven by the bus cover to switch the switch state of the second normally closed contact SQ1 and the second normally open contact SQ2; wherein, the control power supply, the closing button SB1, the second normally open contact SQ2, the first normally closed contact DL1 and the closing coil X form a closing circuit for controlling the closing of the first circuit breaker; the control power supply, the opening button SB2, the first normally open contact DL2 and the opening coil F form an opening circuit for controlling the opening of the first circuit breaker, wherein the second normally closed contact SQ1 is arranged in parallel with the opening button SB2.

[0011] A plurality of drawers are arranged in the cabinet, and a second circuit breaker for controlling the on and off of the incoming busbar and the outgoing busbar is arranged in the drawer.

[0012] The second circuit breaker is a plug-in circuit breaker, which includes a base fixed in the drawer and a circuit breaker body adapted to be plugged into the base. A side of the base away from the circuit breaker body is provided with a connection terminal electrically connected to the incoming busbar and the outgoing busbar.

[0013] The drawer comprises a drawer body and a front panel arranged on the front side of the drawer body. One end of the front panel is hinged to the drawer body, and the other end is detachably connected to the drawer body.

[0014] The other end of the front panel is detachably connected to the drawer body through a lock.

[0015] The technical solution of the present invention has the following advantages:

[0016] 1. The fixed-separation switch cabinet provided by the present invention comprises a cabinet body and a busbar cover. One end of the busbar cover is hinged to the cabinet body, and the other end is detachably connected to the cabinet body. The hinged installation method makes it faster and more convenient to disassemble and assemble the busbar cover. Compared with the prior art method in which the busbar cover is connected to the cabinet body by bolts, the maintenance efficiency is improved.

[0017] 2. The fixed partitioned switch cabinet provided by the present invention has one busbar cover, which is arranged along the length direction of the busbar. Compared with the prior art method of installing multiple busbar covers, this greatly improves the disassembly and assembly efficiency and facilitates maintenance.

[0018] 3. In the fixed separation type switch cabinet provided by the present invention, the other end of the busbar cover is detachably connected to the cabinet body by bolts or locks, and the installation method of bolts and locks is adopted, which has a simple structure and is convenient for disassembly and assembly.

[0019] 4. The fixed-separation switchgear provided by the present invention has an electrical interlocking structure between the busbar cover and the first circuit breaker that controls the power-on or power-off state of the busbar. When the first circuit breaker is in a closed state, that is, when the busbar cover is opened when the busbar is energized, the second normally open contact SQ2 is triggered to close, and the first circuit breaker is automatically opened after the opening coil is energized, thereby ensuring that the busbar is powered off, which has higher safety performance.

[0020] 5. In the fixed partition switch cabinet provided by the present invention, the second circuit breaker is a plug-in circuit breaker, which includes a base fixed in the drawer and a circuit breaker body adapted to be plugged in with the base. The use of the plug-in circuit breaker makes it easier to replace the circuit breaker and improves maintenance efficiency.

[0021] 6. The fixed-partition switch cabinet provided by the present invention comprises a drawer including a drawer body and a front panel arranged on the front side of the drawer body. One end of the front panel is hinged to the drawer body, and the other end is detachably connected to the drawer body. When the second circuit breaker needs to be replaced, there is no need to pull out the drawer, and only the front panel needs to be opened to replace the second circuit breaker, thereby avoiding frequent friction between the plug-in on the rear panel and the busbar due to pushing in and pulling out the drawer, thereby extending the service life of the plug-in. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a rear view of the fixed partition switch cabinet of the present invention;

[0024] Figure 2 This is a front view of the fixed partition switch cabinet of the present invention;

[0025] Figure 3 It is a structural schematic diagram of a fixed partition type switch cabinet of the present invention;

[0026] Figure 4 It is a structural schematic diagram of a drawer installed on a cabinet;

[0027] Figure 5 is a schematic diagram of the assembly structure of the circuit breaker body and the base of the second circuit breaker;

[0028] Figure 6 It is the circuit schematic diagram of the electrical interlocking structure;

[0029] Figure 7 It is a rear view of a fixed partition type switch cabinet in the prior art;

[0030] Figure 8 It is a schematic diagram of the structure of a drawer and a cabinet in a pulled-out state in the prior art.

[0031] Description of reference numerals: 01, cabinet; 02, busbar; 03, busbar cover; 04, drawer; 05, circuit breaker; 06, plug-in;

[0032] 1. Cabinet; 2. Busbar cover; 3. Travel switch; 4. Drawer; 41. Drawer body; 42. Front panel; 43. Rear panel; 5. Second circuit breaker; 51. Base; 52. Circuit breaker body; X. Closing coil; F. Opening coil; SB1. Closing button; SB2. Opening button; DL1. First normally closed contact; DL2. First normally open contact; SQ1. Second normally closed contact; SQ2. Second normally open contact. DETAILED DESCRIPTION

[0033] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0037] Example

[0038] This embodiment provides a fixed partition switch cabinet, such as Figure 1-3 As shown, it includes a cabinet body 1, a busbar cover 2, an electrical interlocking structure, and a drawer 4.

[0039] A cabinet 1 has a busbar and a travel switch 3 connected to a busbar cover 2 in its vertical channel. A first circuit breaker for controlling the power-on or power-off state of the busbar is provided at the upper level of the busbar. The first circuit breaker has a closing coil X, an opening coil F, a closing button SB1, an opening button SB2 and an auxiliary switch. The auxiliary switch has a first normally closed contact DL1 and a first normally open contact DL2.

[0040] The busbar cover 2 is used to shield and protect the busbar. Figure 1 As shown, one end of the busbar cover 2 is hinged to the cabinet 1, and the other end is detachably connected to the cabinet 1 through bolts or locks. The busbar cover 2 has one and is arranged along the length direction of the busbar. It should be noted that the lock is an existing mature technology, so its specific structure and working principle are not described in detail.

[0041] The electrical interlocking structure includes a travel switch 3, which is arranged on the cabinet 1. Figure 6 As shown, it has a second normally closed contact SQ1 and a second normally open contact SQ2, and the travel switch 3 is driven by the busbar cover 2 to switch the switch state of the second normally closed contact SQ1 and the second normally open contact SQ2; wherein, the control power supply, the closing button SB1, the second normally open contact SQ2, the first normally closed contact DL1 and the closing coil X form a closing circuit for controlling the closing of the first circuit breaker; the control power supply, the opening button SB2, the first normally open contact DL2 and the opening coil F form an opening circuit for controlling the opening of the first circuit breaker, wherein the second normally closed contact SQ1 is arranged in parallel with the opening button SB2 to form a travel interlock tripping circuit. When the first circuit breaker is in the closed state, the first normally open contact DL2 is in the closed state. At this time, if the busbar cover 2 is opened, the second normally closed contact SQ1 will switch to the closed state, and the second normally open contact SQ2 will be in the open state. After the opening coil F is energized, it will drive the first circuit breaker to automatically open, thereby cutting off the power to the busbar; only when the busbar cover 2 is in the closed state, the second normally closed contact SQ1 will be opened and the second normally open contact SQ2 will be closed. At this time, the first circuit breaker can be manually closed.

[0042] There are several drawers 4 arranged in the vertical direction, such as Figure 4 and 5 As shown, a second circuit breaker 5 for controlling the on and off of the incoming busbar and the outgoing busbar is provided in the drawer 4. The second circuit breaker 5 is a plug-in circuit breaker, which includes a base 51 fixed in the drawer 4, and a circuit breaker body 52 adapted to be plugged with the base 51. A side of the base 51 away from the circuit breaker body 52 is provided with a connection terminal that can be electrically connected to the incoming busbar and the outgoing busbar. The drawer 4 includes a drawer body 41, a front panel 42 provided on the front side of the drawer body 41, and a rear panel 43 provided on the rear side of the drawer body 41. One end of the front panel 42 is hinged to the drawer body 41, and the other end is detachably connected to the drawer body 41 through a bolt or a lock.

[0043] The fixed-separation switch cabinet provided by the present invention comprises a cabinet body 1 and a busbar cover 2. One end of the busbar cover 2 is hinged to the cabinet body 1, and the other end is detachably connected to the cabinet body 1. The hinged installation method makes it faster and more convenient to disassemble and assemble the busbar cover 2. Compared with the prior art in which the busbar cover is connected to the cabinet body by bolts, the maintenance efficiency is improved.

[0044] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A fixed partition switch cabinet, characterized in that: include: A cabinet (1) having a busbar disposed in a vertical channel thereof; A busbar cover (2) is used to shield and protect the busbar, one end of the busbar cover (2) is hinged to the cabinet (1), and the other end is detachably connected to the cabinet (1); An electrical interlocking structure is provided between the busbar cover (2) and a first circuit breaker for controlling the power-on or power-off state of the busbar; The first circuit breaker comprises a closing coil (X), an opening coil (F), a closing button (SB1), an opening button (SB2) and an auxiliary switch, wherein the auxiliary switch comprises a first normally closed contact (DL1) and a first normally open contact (DL2), and the electrical interlocking structure comprises: A travel switch (3) is arranged on the cabinet (1), and has a second normally closed contact (SQ1) and a second normally open contact (SQ2); the travel switch (3) is driven by the busbar cover (2) to switch the switch state between the second normally closed contact (SQ1) and the second normally open contact (SQ2); Wherein, the control power supply, the closing button (SB1), the second normally open contact (SQ2), the first normally closed contact (DL1) and the closing coil (X) form a closing circuit for controlling the closing of the first circuit breaker; The control power supply, the opening button (SB2), the first normally open contact (DL2) and the opening coil (F) form an opening circuit for controlling the opening of the first circuit breaker, wherein the second normally closed contact (SQ1) is arranged in parallel with the opening button (SB2).

2. The fixed partition switch cabinet according to claim 1, characterized in that: The busbar cover (2) is one and is arranged along the length direction of the busbar.

3. The fixed partition switch cabinet according to claim 2, characterized in that: The other end of the busbar cover (2) is detachably connected to the cabinet body (1) via bolts.

4. The fixed partition switch cabinet according to claim 2, characterized in that: The other end of the busbar cover (2) is detachably connected to the cabinet body (1) via a locking piece.

5. The fixed partition switch cabinet according to any one of claims 1 to 4, characterized in that: A plurality of drawers (4) are arranged in the cabinet (1), and a second circuit breaker (5) for controlling the on and off of an incoming busbar and an outgoing busbar is arranged in the drawer (4).

6. The fixed partition switch cabinet according to claim 5, characterized in that: The second circuit breaker (5) is a plug-in circuit breaker, comprising a base (51) fixedly arranged in the drawer (4), and a circuit breaker body (52) adapted to be plugged into the base (51), and a connection terminal which can be electrically connected to the incoming busbar and the outgoing busbar is provided on a side of the base (51) away from the circuit breaker body (52).

7. The fixed partition switch cabinet according to claim 6, characterized in that: The drawer (4) comprises a drawer body (41) and a front panel (42) arranged on the front side of the drawer body (41); one end of the front panel (42) is hinged to the drawer body (41) and the other end is detachably connected to the drawer body (41).

8. The fixed partition switch cabinet according to claim 7, characterized in that: The other end of the front panel (42) is detachably connected to the drawer body (41) via a locking member.

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