Switch cabinet capable of preventing maintenance from electric shock
Technical Field
The utility model relates to the technical field of switch cabinets, in particular to a switch cabinet capable of preventing maintenance from electric shock.
Background
The switch cabinet is an electrical device, and mainly is used for opening and closing, controlling and protecting electric equipment in the process of generating, transmitting, distributing and converting electric energy of a power system, and has a plurality of internal structures and different functions. The low-voltage switch cabinet is used as a main structure in a power supply network and is widely applied to power transmission, distribution and electric energy conversion. However, as a power supply apparatus, a large number of electric components are often mounted inside the power supply apparatus, and thus, improvement of the use safety of the low-voltage switchgear has become an important point of industrial attention.
The existing low-voltage switch cabinet is directly provided with a mounting plate in the low-voltage switch cabinet, an electrical element is mounted through the mounting plate, however, the electrical element is influenced by self factors and external factors in the long-term use process, and the risk of leakage exists, so that the electrical element is usually connected to a metal cabinet body, the electrical element is grounded through the metal cabinet body, and the leakage protection is realized. However, in the actual use process, the problem of poor leakage protection effect still exists, and when operators approach the cabinet body in the process of overhauling and the like, the risk of electric shock still exists, so that the problem to be solved in the industry is urgent to improve the leakage protection capability of the low-voltage switch cabinet.
Disclosure of Invention
The utility model aims to provide a switch cabinet capable of preventing overhauling and electric shock, which is used for solving the problem of poor anti-leakage protection effect of the existing switch cabinet.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a prevent switch cabinet of maintenance electric shock, includes the switch cabinet body, level are located switch cabinet body inner chamber and be used for installing electrical components's a plurality of mounting panels and locate switch cabinet body inner chamber and be used for the conductive copper strip of ground connection, insulating supporting seat is fixed in pairs on the both sides wall of switch cabinet body inner chamber, the both sides edge of mounting panel respectively with insulating supporting seat along horizontal direction slip joint, the rear end of insulating mounting is fixed in the middle part of switch cabinet body inner chamber back wall, the front end of insulating mounting with conductive copper strip's back fixed connection, the wire holder is fixed in conductive copper strip openly corresponds to the position of mounting panel, be equipped with a plurality of wiring holes second on the wire holder respectively, the conductive shell of mounting panel and top surface installation electrical components is connected to corresponding through the wire respectively wiring hole two places, insulating threading subassembly bottom is fixed in the rear end position of switch cabinet body inner chamber bottom surface, the bottom of conductive strip with pass through insulating threading subassembly's earth connection.
Preferably, the insulating supporting seat comprises a channel steel and an insulating column with top and bottom ends respectively sleeved on the top and bottom plates of the inner cavity of the channel steel in a rotating mode, a plurality of mounting holes are formed in the side wall of the channel steel along the axial direction, bolts sleeved in the mounting holes fix the channel steel on the side wall of the inner cavity of the switch cabinet body, and annular grooves matched with the edges of two sides of the mounting plate in a sliding clamping mode are formed in the middle of the peripheral wall of the insulating column.
Preferably, the insulating fixing piece comprises an insulating circular plate and an insulating short column integrally formed in the middle of the front face of the insulating circular plate, an internal thread sleeve is fixedly sleeved on the front face of the insulating short column, a plurality of second installation holes are formed in the position, close to the outer edge, of the insulating circular plate in the circumferential direction, bolts sleeved in the second installation holes fix the insulating circular plate on the rear wall of the inner cavity of the switch cabinet body, connecting holes I are respectively formed in positions, corresponding to the internal thread sleeve, of the conductive copper bars, connecting holes II are respectively formed in positions, corresponding to the connecting holes I, of the wiring base, and screw rear ends, sleeved in the connecting holes II and the connecting holes I, are sequentially in threaded sleeve connection with the internal thread sleeve.
Preferably, the wire holder comprises a vertical conductive plate extending along the horizontal direction and a horizontal conductive plate with the rear end vertically fixed at the center line position of the front surface of the vertical conductive plate, the second connecting hole is arranged on the vertical conductive plate, and the second connecting hole is arranged on the horizontal conductive plate.
Preferably, the insulating threading assembly comprises an insulating cylinder, an insulating ring integrally formed on the periphery of the insulating cylinder and an annular steel ring sleeved on the periphery of the insulating cylinder and supported on the top surface of the insulating ring, a plurality of mounting holes III are uniformly formed in the position, close to the outer edge, of the annular steel ring along the circumferential direction, and screws sleeved in the mounting holes III fix the annular steel ring on the bottom plate of the switch cabinet body.
Preferably, the bottom end of the conductive copper bar is provided with a first wiring hole electrically connected with the grounding wire.
Compared with the prior art, the utility model has the beneficial effects that:
according to the switch cabinet for preventing maintenance and electric shock, the electrical elements, the mounting plate and the switch cabinet body are electrically isolated, the conductive copper bar used for grounding is also insulated with the switch cabinet body through the insulating piece, and conductors with electric leakage, such as the mounting plate, the electrical element shell and the like, are electrically connected with the conductive copper bar through the lead wire and the wiring seat, so that the anti-electric leakage protection effect of the switch cabinet is ensured.
Drawings
FIG. 1 is a schematic diagram of the overall front view structure of the present utility model;
FIG. 2 is a schematic perspective view of an insulating support base according to the present utility model;
fig. 3 is a schematic perspective view of a conductive copper bar according to the present utility model;
FIG. 4 is a schematic perspective view of a wire holder according to the present utility model;
FIG. 5 is a schematic perspective view of an insulating fixture according to the present utility model;
fig. 6 is a schematic perspective view of an insulated threading assembly of the present utility model.
In the figure: 1-a switch cabinet body;
2-mounting plates;
3-an insulating support base; 311-channel steel; 311-mounting hole I; 32-insulating columns; 321-annular grooves;
4-conducting copper strips; 41-connecting hole I; 42-wiring hole I;
5-wire holders; 51-vertical conductive plates; 511-connecting hole two; 52-horizontal conductive plates; 521-wiring holes II;
6-insulating fixing pieces; 61-insulating circular plate; 611-mounting hole two; 62-insulating stub; 63-an internal thread sleeve;
7-an insulating threading assembly; 71-an insulating cylinder; 72-an insulating ring; 73-an annular steel ring; 731-mounting hole three.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-6, the present utility model provides a technical solution: the utility model provides a prevent switch cabinet of maintenance electric shock, including the switch cabinet body 1, the level is located switch cabinet body 1 inner chamber and is used for installing electrical components's a plurality of mounting panels 2 and locate switch cabinet body 1 inner chamber and be used for the conductive copper strip 4 of ground connection, insulating supporting seat 3 is fixed in pairs on the both sides wall of switch cabinet body 1 inner chamber, the both sides edge of mounting panel 2 respectively with insulating supporting seat 3 along horizontal direction slip joint, specifically, insulating supporting seat 3 includes channel-section steel 31 and top bottom rotate the insulating column 32 of suit in channel-section steel 31 inner chamber top bottom plate respectively, the lateral wall of channel-section steel 31 is equipped with a plurality of mounting holes 311 along the axial, the bolt of suit is fixed channel-section steel 31 on switch cabinet body 1's inner chamber lateral wall in the mounting hole 311, the middle part of insulating column 32 periphery wall is equipped with the annular groove 321 that matches with mounting panel 2 both sides edge slip joint, insulating column 32 is insulating between mounting panel 2 and switch cabinet body 1, moreover be convenient for the quick assembly disassembly of mounting panel 2 through annular groove 321.
The rear end of the insulating fixing piece 6 is fixed in the middle of the rear wall of the inner cavity of the switch cabinet body 1, the front end of the insulating fixing piece 6 is fixedly connected with the back surface of the conductive copper bar 4, the wire holder 5 is fixed at the position of the front surface of the conductive copper bar 4 corresponding to the mounting plate 2, a plurality of wire connection holes two 521 are respectively formed in the wire holder 5, and the mounting plate 2 and the conductive shell of the electrical element mounted on the top surface of the mounting plate are respectively connected to the corresponding wire connection holes two 521 through wires; specifically, the insulating fixing member 6 includes an insulating circular plate 61 and an insulating short column 62 integrally formed in the middle of the front surface of the insulating circular plate 61, an internal thread sleeve 63 is fixedly sleeved on the front surface of the insulating short column 62, a plurality of second mounting holes 611 are circumferentially formed in the position, close to the outer edge, of the insulating circular plate 61, a bolt sleeved in each second mounting hole 611 fixes the insulating circular plate 61 to the rear wall of the inner cavity of the switch cabinet body 1, a first connecting hole 41 is formed in the position, corresponding to the internal thread sleeve 63, of the conductive copper strip 4, a second connecting hole 511 is formed in the position, corresponding to the first connecting hole 41, of the wire holder 5, a second connecting hole 511 is formed in the position, corresponding to the first connecting hole 41, of the conductive copper strip 4, a screw sleeved in the first connecting hole 41 in sequence is sleeved in the internal thread sleeve 63, the insulating fixing member 6 simultaneously fixes the conductive copper strip 4 and the wire holder 5, the wire holder 5 includes a vertical conductive plate 51 extending in the horizontal direction and a horizontal conductive plate 52 with the rear end vertically fixed to the center line position of the front surface of the vertical conductive plate 51, the second connecting hole 511 is formed in the vertical conductive plate 51, and the second connecting hole 521 is formed in the horizontal conductive plate 52.
The bottom end of the insulating threading assembly 7 is fixed at the rear end position of the bottom surface of the inner cavity of the switch cabinet body 1, the bottom end of the conductive copper bar 4 is electrically connected with a grounding wire penetrating through the inner cavity of the insulating threading assembly 7, and the grounding wire is a grounding wire pre-buried in the ground; the insulating threading assembly 7 comprises an insulating cylinder 71, an insulating ring 72 integrally formed on the periphery of the insulating cylinder 71 and an annular steel ring 73 sleeved on the periphery of the insulating cylinder 71 and supported on the top surface of the insulating ring 72, a plurality of mounting holes three 731 are uniformly formed in the position, close to the outer edge, of the annular steel ring 73 in the circumferential direction, the annular steel ring 73 is fixed on a bottom plate of an inner cavity of the switch cabinet body 1 by screws sleeved in the mounting holes three 731, through holes are formed in the corresponding positions of the bottom plate of the switch cabinet body 1 in an optimal mounting mode, the bottom end of the insulating cylinder 71 is sleeved in the through holes, the insulating ring 72 is pressed on the top surface of the bottom plate of the switch cabinet body 1, and then the insulating ring 72 is pressed and fixed by the annular steel ring 73.
In order to facilitate the electrical connection between the grounding wire and the conductive copper bar 4, a first wiring hole 42 electrically connected to the grounding wire is formed at the bottom end of the conductive copper bar 4.
The insulating column 32 and the insulating cylinder 71 may be made of insulating material such as ceramic; the wire holder 5 is made of copper.
In summary, the mounting plate 2 is insulated from the side wall of the switch cabinet body 1 through the insulation column 32; the conductive copper bar 4 is insulated from the side wall of the switch cabinet body 1 through an insulating fixing piece 6; the grounding wire is insulated with the wall body of the switch cabinet body 1 through an insulating cylinder 71; the installation plate 2 and the electric element conductive shell which are easy to be conductive during electric leakage are respectively electrically connected with the conductive copper bar 4 through the lead wire and the wiring seat 5, so that the anti-electric leakage protection effect of the switch cabinet is ensured.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.