A kind of burn-in test control device of low-voltage electrical apparatus
Technical field
The utility model is related to burn-in test control device technical field, more particularly to a kind of burn-in test of low-voltage electrical apparatus
Control device.
Background technology
Low-voltage electrical apparatus be it is a kind of can be according to extraneous signal and requirement, manually or automatically on-off circuit, to realize
To the element or equipment of the switching of circuit or non-electrical object, control, protection, detection, conversion and regulation.Control apparatus presses its work
The height of voltage, to exchange 1200V, direct current 1500V as boundary, can be divided into high voltage control electrical equipment and low-voltage controling appliance two is big
Class, generally speaking, low-voltage electrical apparatus can be divided into electrical power distribution apparatus and the major class of control apparatus two, be the basic composition of assembled electric equipment
Element, it is most of to use low-voltage power supply in industry, agricultural, traffic, national defence and people's electricity consumption department.
Low-voltage electrical apparatus is required to carry out burn-in test before dispatching from the factory, and typically it is heated, its degree of aging is seen, existing
Some aging testing apparatus can only carry out test equipment with a temperature, and efficiency is low, and data are few, therefore, the utility model proposes one
The burn-in test control device of low-voltage electrical apparatus is planted, for solving the deficiencies in the prior art.
Utility model content
The purpose of this utility model is and a kind of low-voltage electrical apparatus for proposing in order to solve shortcoming present in prior art
Burn-in test control device.
To achieve these goals, the utility model employs following technical scheme:
A kind of burn-in test control device of low-voltage electrical apparatus, including base, the top both sides of the base pass through bolt
It is fixed with the top of support column, the support column and has been bolted support frame, is fixed between two support frames as described above old
Change test box, the ageing test box is hollow rectangular parallelepiped structure, and the bottom of the ageing test box is provided with fan guard, institute
The bottom for stating fan guard is fixed with servomotor, and the output shaft of servomotor is set upward, and the top of the output shaft is fixed
There is flabellum, the both sides of the fan guard are respectively and fixedly provided with support bar, and the other end of the support bar is bolted on support column
Side wall on, the inner bottom part of the ageing test box is provided with electric heating tube, and the inside of the ageing test box is from bottom to up etc.
Distance is fixed with multiple screen packs, and the side that the ageing test box is located at each screen pack is equipped with chamber door, the aging
The opposite side that test box is located at each screen pack is equipped with air velocity transducer and temperature sensor, and air velocity transducer and temperature
The probe of sensor runs through the side wall of ageing test box and extends to the inside of ageing test box, the side of one of support column
PLC is installed on wall.
It is preferred that, the chamber door is provided with handle, and handle is provided with antiskid thread.
It is preferred that, the surface of the PLC is provided with display, and the inside of the PLC is provided with model
AT89C51 single-chip microcomputer.
It is preferred that, the PLC connects with servomotor, electric heating tube, air velocity transducer and temperature sensor respectively
Connect.
It is preferred that, the side of the ageing test box is provided with multiple observation windows, and observation window is respectively positioned at screen pack
Sideways.
Compared with prior art, the beneficial effects of the utility model are:By the design of ageing test box, and in test box
In be provided with multiple screen packs, can place simultaneously low-voltage electrical apparatus on multiple low-voltage electrical apparatuses, each layer of screen pack it is heated by
The degree of wind is roughly the same, and the heated wind-engaging degree of the low-voltage electrical apparatus on different screen pack is different, can obtain difference
Data at temperature and component parameters, and temperature sensor and air velocity transducer can measure the temperature of each layer screen pack in real time
And component, by the design of observation window, the degree of aging of low-voltage electrical apparatus can be observed, the utility model structure is novel, and design is skilful
It is wonderful, it is rational in infrastructure.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of low-voltage electrical apparatus burn-in test control device profile;
Fig. 2 be the utility model proposes a kind of low-voltage electrical apparatus burn-in test control device front view.
In figure:1 base, 2 support columns, 3 support frames, 4 ageing test boxes, 5 screen packs, 6 electric heating tubes, 7 temperature sensors,
8 air velocity transducers, 9 support bars, 10 servomotors, 11 flabellums, 12 chamber doors, 13 PLCs, 14 fan guards, 15 observation windows.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Reference picture 1-2, a kind of burn-in test control device of low-voltage electrical apparatus, including base 1, the top two of the base 1
Side has been bolted support column 2, and the top of the support column 2 has been bolted support frame 3, two supports
Ageing test box 4 is fixed between frame 3, the ageing test box 4 is hollow rectangular parallelepiped structure, the ageing test box 4
Bottom is provided with fan guard 14, and the bottom of the fan guard 14 is fixed with servomotor 10, and the output shaft court of servomotor 10
It is upper to set, flabellum 11 is fixed with the top of the output shaft, the both sides of the fan guard 14 are respectively and fixedly provided with support bar 9, the branch
The other end of strut 9 is bolted on the side wall of support column 2, and the inner bottom part of the ageing test box 4 is provided with electricity and added
Heat pipe 6, the inside of the ageing test box 4 is equidistant from bottom to up to be fixed with multiple screen packs 5, the ageing test box 4
Chamber door 12 is equipped with the side of each screen pack 5, the opposite side that the ageing test box 4 is located at each screen pack 5 is equal
Probe provided with air velocity transducer 8 and temperature sensor 7, and air velocity transducer 8 and temperature sensor 7 runs through ageing test box
PLC 13 is installed on 4 side wall and the inside for extending to ageing test box 4, the side wall of one of support column 2, led to
The design of ageing test box 4 is crossed, and multiple screen packs 5 are provided with test box, multiple low-voltage electrical apparatuses can be placed simultaneously, it is each
The degree of the heated wind-engaging of low-voltage electrical apparatus on the screen pack 5 of layer is roughly the same, and the low-voltage electrical apparatus on different screen pack 5
Heated wind-engaging degree is different, can obtain the data under different temperatures and component parameters, and temperature sensor 7 and wind speed are passed
Sensor 8 can measure the temperature and component of each layer screen pack 5 in real time, by the design of observation window 15, can observe low-voltage electrical apparatus
Degree of aging, the utility model structure is novel, ingenious in design, rational in infrastructure.
In the utility model, the chamber door 12 is provided with handle, and handle is provided with antiskid thread, the PLC 13
Surface display is installed, the inside of the PLC 13 is provided with model AT89C51 single-chip microcomputer, the PLC controls
Device 13 is connected with servomotor 10, electric heating tube 6, air velocity transducer 8 and temperature sensor 7 respectively, the ageing test box 4
Side is provided with multiple observation windows 15, and observation window 15 is located at the side of screen pack 5 respectively.
The utility model when in use, by the design of ageing test box 4, and in test box be provided with multiple screen packs 5,
The degree that the heated wind-engaging of low-voltage electrical apparatus on multiple low-voltage electrical apparatuses, each layer of screen pack 5 can be placed simultaneously is roughly the same,
And the heated wind-engaging degree of the low-voltage electrical apparatus on different screen packs 5 is different, it can obtain under different temperatures and component parameters
Data, and temperature sensor 7 and air velocity transducer 8 can measure the temperature and component of each layer screen pack 5 in real time, pass through and see
The design of window 15 is examined, the degree of aging of low-voltage electrical apparatus can be observed, low-voltage electrical apparatus is placed on screen pack 5 by chamber door 12, is closed
Upper chamber door 12, opens electric heating tube 6 and servomotor 10, so can be carried out burn-in test.
It is described above, only the utility model preferably embodiment, but protection domain of the present utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model is disclosed, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.