Indoor alternating-current metal-armored centrally-mounted switch equipment

Abstract

The utility model discloses an indoor AC metal armored central switch device, which comprises a base, an electric appliance element assembly frame is fixedly mounted on the base, electric appliance elements are assembled on the electric appliance element assembly frame, a lifting cabinet body is arranged on the outer side of the electric appliance element assembly frame, a heat dissipation opening is formed in the top surface of the lifting cabinet body, and the heat dissipation opening is communicated with the electric appliance element assembly frame. And a heat dissipation fan is mounted in the heat dissipation opening. According to the lifting cabinet, the synchronous motors, the lead screws, the moving blocks and the connecting blocks are used in cooperation, the multiple synchronous motors drive the multiple lead screws to synchronously rotate forwards and backwards at the same time, the multiple lead screws rotate forwards and backwards to drive the moving blocks to move up and down under the cooperation of the connecting blocks, and the lifting cabinet body can be driven to ascend and descend; compared with a reference file, the maintenance cabinet has the advantages that the labor force for manually opening symmetrical openings in the two sides of the electrical element assembly chamber and then supporting the opened cover plate by using a supporting rod is saved, and the maintenance is more labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to an indoor AC metal armored center-mounted switch device. Background Art

[0002] The indoor AC metal-clad center-mounted removable switchgear is a complete set of power distribution equipment for 3-10kv three-phase AC 50Hz single-line and single-busbar segmented systems. It is mainly used for power plants, power transmission of small and medium-sized generators, power distribution of industrial and mining enterprises, and power receiving and transmission of secondary substations in power systems, and starting of large high-voltage motors, etc., for the purpose of control, protection and monitoring.

[0003] The existing technology has the following problems:

[0004] After extensive searching, it was found that Chinese patent publication number: CN210201316U discloses an indoor AC high-voltage metal armored removable switchgear, including a base, a cabinet body is installed on the base, an instrument room is arranged on the top of the cabinet body, a cable trough is arranged directly below the instrument room, a first threading hole is vertically distributed inside the cable trough, an electrical component assembly room is arranged at the bottom of the cabinet body, openings are symmetrically arranged on both sides of the electrical component assembly room, rectangular limit grooves are symmetrically arranged in the middle of the side of the opening, a cover plate is rotatably connected to the top of the opening through a first rotating shaft, and the cover A handle is fixed on the outside of one end of the plate, and support rods are symmetrically installed on both sides of the cover plate. The top of the support rod is connected to the cover plate through a second rotating shaft, and the bottom of the support rod is fixedly connected to a limit block corresponding to the rectangular limit groove. The electrical component assembly room is provided with a fixed plate corresponding to the opening, and mounting plates are equidistantly spaced in the middle of the fixed plate. This patent facilitates maintenance and repair of electrical components on the mounting plate by symmetrically arranging openings on both sides of the electrical component assembly room, opening the cover plate and using the limit block at the bottom of the support rod and the rectangular limit groove in the middle of the opening to prop up the cover plate.

[0005] However, the above patent still has problems that need to be improved during actual use. The most obvious one is that the method of manually opening the symmetrical openings on both sides of the electrical component assembly room and then using support rods to support the open cover is time-consuming and labor-intensive, affecting the efficiency of maintenance and repair of electrical components.

[0006] To this end, we proposed a type of indoor AC metal armored central switchgear to solve the above drawbacks. Utility Model Content

[0007] The utility model aims to solve the shortcomings of the prior art and provides an indoor AC metal armored center-mounted switchgear.

[0008] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an indoor AC metal armored central switch device, comprising a base, an electrical component assembly rack is fixedly installed on the base, and electrical components are assembled on the electrical component assembly rack, a lifting cabinet is arranged on the outer side of the electrical component assembly rack, and a heat dissipation port is opened on the top surface of the lifting cabinet, a heat dissipation fan is installed in the heat dissipation port, a detachable dustproof net is installed on the top of the heat dissipation port, a vent is opened on the side wall of the lifting cabinet, and a dustproof plate is arranged on one side of the vent, synchronous motors are symmetrically installed on the two side surfaces of the electrical component assembly rack, and a lead screw is installed on the output end of the synchronous motor, a moving block is used in conjunction with the surface of the lead screw, and a connecting block is welded on the surface of the moving block, and the other end of the connecting block is connected to the inner wall of the lifting cabinet.

[0009] Preferably, a double-control switch is installed on the surface of the electrical component assembly rack and the outer wall of the lifting cabinet, and the double-control switch is electrically connected to the synchronous motor.

[0010] Preferably, a plurality of the lead screws are provided, and the plurality of lead screws are distributed in pairs on both side surfaces of the electrical component assembly rack.

[0011] Preferably, a plurality of ventilation openings are provided, and the ventilation openings are evenly distributed on the outer wall of the lifting cabinet.

[0012] Preferably, the detachable dustproof net is a rectangular structure, and the material of the detachable dustproof net is 304 stainless steel.

[0013] Preferably, the bottom end of the dustproof plate is tilted downward.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, a synchronous motor, a lead screw, a moving block and a connecting block are arranged to cooperate with each other. A plurality of synchronous motors simultaneously drive a plurality of lead screws to rotate forward and reverse synchronously. The forward and reverse rotation of the plurality of lead screws drives the moving block to move up and down with the cooperation of the connecting block, and can drive the lifting cabinet to be lifted and lowered, so as to facilitate the staff to inspect and maintain the electrical components inside the cabinet. Compared with the reference document, it saves the labor of manually opening the symmetrical openings on both sides of the electrical component assembly room, and then uses the support rods to support the open cover plate, so the inspection and maintenance is more labor-saving.

[0016] 2. In the utility model, a cooling fan and vents are provided to achieve the effect of dissipating heat for the electrical components in the lifting cabinet, thereby ensuring the working efficiency of the electrical components in the lifting cabinet, reducing the impact of heat on the working efficiency of the electrical components, and extending the service life of the electrical components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 This is a structural schematic diagram of an indoor AC metal armored center-mounted switchgear proposed by the utility model;

[0019] Figure 2 It is a three-dimensional diagram of a lifting cabinet;

[0020] Figure 3 for Figure 1 A partial schematic diagram of .

[0021] Legend:

[0022] 1. Base; 2. Liftable cabinet; 3. Electrical component assembly rack; 4. Heat dissipation port; 5. Cooling fan; 6. Removable dust screen; 7. Ventilation port; 8. Dust plate; 9. Synchronous motor; 10. Lead screw; 11. Moving block; 12. Connecting block; 13. Double control switch. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance; in addition, 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 an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Please refer to Figure 1-3 A type of indoor AC metal armored central switchgear comprises a base 1, an electrical component assembly rack 3 is fixedly mounted on the base 1, and electrical components are assembled on the electrical component assembly rack 3, a lifting cabinet 2 is arranged on the outer side of the electrical component assembly rack 3, and a heat dissipation port 4 is provided on the top surface of the lifting cabinet 2, a heat dissipation fan 5 is installed in the heat dissipation port 4, a detachable dustproof net 6 is installed on the top of the heat dissipation port 4, a vent 7 is provided on the side wall of the lifting cabinet 2, and a dustproof plate 8 is arranged on one side of the vent 7, synchronous motors 9 are symmetrically mounted on the two side surfaces of the electrical component assembly rack 3, and screws 10 are installed on the output ends of the synchronous motors 9, a moving block 11 is used in conjunction with the surface of the screw 10, and a connecting block 12 is welded on the surface of the moving block 11, and the other end of the connecting block 12 is connected to the inner wall of the lifting cabinet 2. When in use, refer to Chinese Patent Publication No. : CN210201316U discloses an indoor AC high-voltage metal-clad removable switch device, in which multiple synchronous motors 9 simultaneously drive multiple lead screws 10 to rotate forward and backward synchronously. The multiple lead screws 10 rotate forward and backward and drive the movable block 11 to move up and down with the cooperation of the connecting block 12, which can drive the lifting cabinet 2 to lift, so as to facilitate the staff to inspect and maintain the electrical components inside the cabinet. Compared with the reference document, it saves the labor of manually opening the symmetrical openings on both sides of the electrical component assembly room, and then uses the support rods to support the opening of the cover plate, so the inspection and maintenance is more labor-saving. By arranging the cooling fan 5 and the vent 7, the effect of heat dissipation of the electrical components in the lifting cabinet 2 is achieved, the working efficiency of the electrical components in the lifting cabinet 2 is guaranteed, the influence of heat on the working efficiency of the electrical components is reduced, and the service life of the electrical components is extended.

[0026] In this embodiment, a double-control switch 13 is installed on the surface of the electrical component assembly rack 3 and the outer wall of the lifting cabinet 2 , and the double-control switch 13 is electrically connected to the synchronous motor 9 .

[0027] Specifically, it is a common circuit connection structure, which will not be described in detail here, so as to facilitate maintenance personnel to control the lifting cabinet 2 to lift.

[0028] In this embodiment, a plurality of lead screws 10 are provided, and the plurality of lead screws 10 are distributed in pairs on both side surfaces of the electrical component assembly rack 3 .

[0029] Specifically, there are four groups of lead screws 10, and the four groups of lead screws 10 modules move synchronously to drive the lifting cabinet 2 to lift and lower, thereby ensuring stability during the lifting process.

[0030] In this embodiment, a plurality of ventilation openings 7 are provided, and the ventilation openings 7 are evenly distributed on the outer wall of the liftable cabinet 2 .

[0031] Specifically, it can realize heat exchange of air and achieve a ventilation effect.

[0032] In this embodiment: the detachable dustproof net 6 is a rectangular structure, and the material of the detachable dustproof net 6 is 304 stainless steel.

[0033] Specifically, it has the advantage of not being easily damaged and prolonging service life.

[0034] In this embodiment: the bottom end of the dustproof plate 8 is tilted downward.

[0035] Specifically, it can be dustproof and waterproof at the same time, preventing water from entering the liftable cabinet 2.

[0036] In this embodiment: the controller is an existing structure, and the control circuit can be implemented by simple programming by technicians in this field. It belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0037] Working principle: When in use, refer to the indoor AC high-voltage metal armored removable switch device disclosed in Chinese Patent Publication No.: CN210201316U. Multiple synchronous motors 9 simultaneously drive multiple lead screws 10 to rotate forward and reverse synchronously. The multiple lead screws 10 rotate forward and reverse and drive the moving block 11 to move up and down with the cooperation of the connecting block 12, which can drive the lifting cabinet 2 to lift, so as to facilitate the staff to inspect and maintain the electrical components inside the cabinet. Compared with the reference document, it saves the labor of manually opening the symmetrical openings on both sides of the electrical component assembly room, and then uses the support rods to support the opening of the cover plate, which makes inspection and maintenance more labor-saving. By arranging the cooling fan 5 and the vent 7, the effect of heat dissipation of the electrical components in the lifting cabinet 2 is achieved, the working efficiency of the electrical components in the lifting cabinet 2 is guaranteed, the influence of heat on the working efficiency of the electrical components is reduced, and the service life of the electrical components is extended.

[0038] It should be noted that the model specifications of the dual-control switch 13 and the synchronous motor 9 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0039] The power supply and principle of the double-control switch 13 and the synchronous motor 9 are clear to those skilled in the art and will not be described in detail here.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An indoor AC metal-clad center-mounted switchgear, comprising a base (1), characterized in that: An electrical component assembly rack (3) is fixedly mounted on the base (1), and electrical components are mounted on the electrical component assembly rack (3). A lifting cabinet (2) is arranged on the outer side of the electrical component assembly rack (3), and a heat dissipation port (4) is provided on the top surface of the lifting cabinet (2). A heat dissipation fan (5) is installed in the heat dissipation port (4), and a detachable dustproof net (6) is installed on the top of the heat dissipation port (4). A vent (7) is provided on the side wall of the lifting cabinet (2), and a dustproof plate (8) is provided on one side of the vent (7). Synchronous motors (9) are symmetrically mounted on both side surfaces of the electrical component assembly rack (3), and a lead screw (10) is mounted on the output end of the synchronous motor (9). A moving block (11) is used in conjunction with the surface of the lead screw (10), and a connecting block (12) is welded to the surface of the moving block (11), and the other end of the connecting block (12) is connected to the inner wall of the lifting cabinet (2).

2. The indoor AC metal-clad center-mounted switchgear according to claim 1 is characterized in that: A double-control switch (13) is installed on the surface of the electrical component assembly rack (3) and the outer wall of the lifting cabinet (2), and the double-control switch (13) is electrically connected to the synchronous motor (9).

3. The indoor AC metal-clad center-mounted switchgear according to claim 1 is characterized in that: A plurality of the lead screws (10) are provided, and the plurality of lead screws (10) are distributed in pairs on the two side surfaces of the electrical component assembly rack (3).

4. The indoor AC metal-clad center-mounted switchgear according to claim 1 is characterized in that: A plurality of ventilation openings (7) are provided, and the ventilation openings (7) are evenly distributed on the outer wall of the lifting cabinet (2).

5. The indoor AC metal-clad center-mounted switchgear according to claim 1 is characterized in that: The detachable dustproof net (6) is a rectangular structure, and the material of the detachable dustproof net (6) is 304 stainless steel.

6. The indoor AC metal-clad center-mounted switchgear according to claim 1 is characterized in that: The bottom end of the dustproof plate (8) is arranged to be inclined downward.

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