A kind of cabinet
The utility model relates to technical field of electrical equipment, and in particular to a kind of cabinet.
Switchgear is a kind of electrical equipment, and switchgear outside line is introduced into master switch in cabinet, subsequently into sub-control switch, respectively
Branch is set according to its needs.Such as instrument, automatic control, motor magnetic switch, various A.C. contactors etc., some also set hyperbaric chamber with
Low-pressure chamber switchgear, is equipped with high voltage bus, such as power plant, and some is additionally provided with to protect the low-frequency load reduction of capital equipment.
With the development and progress of society, the fast development of power industry is huge to the consumption of switchgear, and switchgear is to electricity
Power supply is also playing an important role, and when interlock circuit failure occurs in inside switch cabinet, electric arc can discharge in a short time
Huge energy, will cause injury to personnel, there are security risks at the case where be easy to causeing inside switch cabinet increased pressure.
Utility model content
The utility model aim is to provide a kind of switchgear that security performance is high, solve in background technique inconvenient maintenance and
It is good and repair convenient switchgear to provide a kind of stability for the low problem of security performance.
In order to achieve the goal above, the technical solution adopted in the utility model are as follows: a kind of cabinet, including switchgear
Ontology, switch cabinet body outer wall side are connected with the instrumentation table of equidistant arrangement, and the instrumentation table bottom is provided with headlamp,
The switch cabinet body is internally provided with breaker, and the breaker top and bottom is separately installed with positioned at the switchgear sheet
Disconnecting switch and on-load switch on internal wall, the disconnecting switch top are connected with by cable vault positioned at the switchgear sheet
Fixation member at the top of internal wall, the on-load switch side is provided with secondary terminals seed cell, institute far from described disconnecting switch one end
It states secondary terminals seed cell side and is provided with protective device, the protective device includes shell, and inner walls bottom end two sides are solid
Surely it is connected with insulating sleeve, is connected at the top of the insulating sleeve by electric conductor and limits arc portion positioned at the first of the enclosure interior
Part, described first limits the extension board being provided with above the electric conductor between arc portion part, fixed peace at the top of the extension board
Equipped with bending part, the striking component being connected at the top of the bending part at the top of the inner walls, the striking component one
Side is equipped with fixed part far from described extension board one end, through-hole is connected on the fixed part, described through-hole one end is through described
Fixed part is simultaneously connected with the inner walls.
The utility model has the technical effect that the cable vault connected by the way that breaker is arranged in switch cabinet body,
Under the two-way function of disconnecting switch and on-load switch, when so that short-circuit interlock circuit problem occurring in inside, can effectively it make
Circuit is closed, and electronic component is protected, when there is short circuit and circuit problem in switchgear, the first limit arc portion part connection on striking component
Second limit arc portion part, the other structures in device can be limited in independent space, avoid influence of the electric arc to its component,
The insulating sleeve on electric conductor can also increase the insulating properties of switchgear simultaneously, and such switchgear considerably increases stability
Can, design rationally, effectively reduces the influence of electric arc, guarantees the safety of staff.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model switchgear；
Fig. 2 is the structural schematic diagram of the utility model protective device.
Appended drawing reference: 1- switch cabinet body；2- instrumentation table；3- headlamp；4- breaker；5- disconnecting switch；6- load is opened
It closes；The cable vault 7-；8- fixation member；9- secondary terminals seed cell；10- protective device；11- shell；12- insulating sleeve；13- is conductive
Body；14- first limits arc portion part；15- extension board；16- bending part；17- striking component；18- fixed part；19- through-hole；20- insertion
End；21- lock；22- accommodating chamber；23- second limits arc portion part.
Referring to attached drawing 1-2, a kind of cabinet, including switch cabinet body 1, the 1 outer wall side of switch cabinet body connect
It is connected to the instrumentation table 2 of equidistant arrangement, 2 bottom of instrumentation table is provided with headlamp 3, and the switch cabinet body 1 is internally provided with
Breaker 4,4 top and bottom of breaker are separately installed with 5 He of disconnecting switch on 1 inner wall of switch cabinet body
On-load switch 6 is connected with the fixation at the top of 1 inner wall of switch cabinet body by cable vault 7 at the top of the disconnecting switch 5
Component 8,6 side of on-load switch are provided with secondary terminals seed cell 9, the secondary terminals seed cell 9 far from described 5 one end of disconnecting switch
Side is provided with protective device 10, and the protective device 10 includes shell 11, and the 11 inner wall bottom end two sides of shell are fixed to be connected
It is connected to insulating sleeve 12, first be connected at the top of the insulating sleeve 12 by electric conductor 13 inside the shell 11
Arc portion part 14 is limited, the extension board 15 for being located at and being placed in 13 top of electric conductor, institute are provided between the first limit arc portion part 14
It states and is fixedly installed with bending part 16 at the top of extension board 15, be connected at the top of the bending part 16 positioned at the 11 inner wall top of shell
The striking component 17 in portion, 17 side of striking component are equipped with fixed part 18, the fixation far from described 15 one end of extension board
Through-hole 19 is connected in portion 18, described 19 one end of through-hole is connected through the fixed part 18 and with 11 inner wall of shell.It is logical
It crosses and the cable vault 7 that breaker 4 connects is set in switch cabinet body 1, under the two-way function of disconnecting switch 5 and on-load switch 6,
When so that short-circuit interlock circuit problem occurring in inside, effectively circuit can be closed, electronic component be protected, when switchgear goes out
When existing short circuit and circuit problem, the second limit arc portion part 23 that first limit arc portion part 14 connects on striking component 17 can will be protected
Other structures in device 10 are limited in independent space, avoid influence of the electric arc to its component, while exhausted on electric conductor 13
Edge casing 12 can also increase the insulating properties of switchgear, and such switchgear considerably increases stability, and design is reasonable, effectively
The influence for reducing electric arc, guarantee the safety of staff.
Preferably, the 1 inner wall side of switch cabinet body is connected with the insertion end 20 above the breaker 4.
Preferably, the lock 21 in the switch cabinet body 1 is provided with below the insertion end 20.
Preferably, the accommodating chamber 22 for being located at 15 lower section of extension board, accommodating chamber 22 are equipped between the insulating sleeve 12
Be provided with conducive to mating connection interstructural in protective device 10.
Preferably, 16 side of bending part is connected with the second limit arc portion part 23, the second limit on the fixed part 18
Electric arc can be enclosed in individual space by the cooperation of arc portion part 23 first limit arc portion part 14, increase safety.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.