CN203025330U

CN203025330U - High-power nonlinear loading box

Info

Publication number: CN203025330U
Application number: CN 201220686569
Authority: CN
Inventors: 吴少华
Original assignee: WUJIANG CITY HUACHENG ELECTRONICS CO Ltd
Current assignee: WUJIANG CITY HUACHENG ELECTRONICS CO Ltd
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2013-06-26
Anticipated expiration: 2022-12-13

Abstract

The utility model discloses a high-power nonlinear loading box. The loading box comprises a box body, wherein the front end inside the box body is provided with a plurality of groups of holes, a temperature controller, an alternating current contactor, a single-phase rectifying bridge, a miniature circuit breaker and an axial flow fan; the axial flow fan is arranged at the bottom of the box body; an electrolytic capacitor is arranged at the rear end inside the box body; heat insulation cotton is arranged in the middle of the box body; the electrolytic capacitor is arranged on a bottom plate which can be adjusted up and down; and a plurality of U type resistors are arranged at the left side of the box body. The loading box can be loaded continuously for twenty four hours, but the internal resistors neither become red nor hot; due to an automatic overheat protection function, the loading box is neither overheated nor burnt even when the fan does not rotate, and therefore, the safe life of the loading box is long; and the miniature circuit breaker is selected for controlling power of branch loops, so that the fault, which is caused when a contact is burnt after the alternating current contactor is electrified for a long time, is avoided.

Description

A kind of high power nonlinear load case

Technical field

The utility model relates to the pick-up unit field of AC power, particularly relate to a kind of high power nonlinear load case.

Background technology

When load box was check electric current, voltage transformer (VT), the various service loads that provide specially were the equipment for test rectifier, transducer, accumulator and genset AC power power.In commercial production, need to load capacity, the capacity of rectifier, transducer, accumulator and genset AC power be detected, guaranteeing the normal operation of equipment, during detection except using detector, also must survey load by the training biopsy, so that Measurement accuracy.But easily rubescent hot during load box of the prior art work, and minute power loop is controlled and has been selected the contact of can't avoiding switching on for a long time after A.C. contactor to burn and cause fault.

Therefore, design for above-mentioned situation and have overheated automatic protection functions, and can effectively avoid the A.C. contactor contact that switches on for a long time burn and cause a kind of high power nonlinear load case of fault, just inventor's problem to be solved.

The utility model content

The technical matters that the utility model mainly solves is to provide a kind of high power nonlinear load case; can effectively avoid the A.C. contactor contact that switches on for a long time burn and cause fault; and have overheated automatic protection functions, load continuously 24 hours internal resistances also without the red heat phenomenon.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of high power nonlinear load case is provided, comprise casing, described casing Inner Front End is provided with some groups of holes, temperature controller, A.C. contactor, single-phase rectification bridge, miniature circuit breaker and axial flow blower, described axial flow blower is arranged on the bottom of casing, in described casing, the rear end is provided with electrochemical capacitor, and the middle part of described casing is provided with heat insulation foam.

In preferred embodiment of the utility model, described electrochemical capacitor is arranged on base plate, but described base plate position up-down adjustment, and described casing left side is provided with some U-shaped resistance; Described casing arranged outside has some buttons and hummer.

The beneficial effects of the utility model are:

1, the utility model is for detection of the performance of AC power when getting involved different loads, and to adapt to the needs of different loads and different capacity, this load can be accomplished to load in continuous 24 hours, and internal resistance is without the red heat phenomenon; This load has overheated automatic protection functions, in the situation that blower fan does not turn, situation overheated, scaling loss can not occur yet, and its safe life is long;

What 2, the utility model divided power loop to control to select is miniature circuit breaker, has so just avoided selecting the A.C. contactor contact that switches on for a long time to burn and cause the phenomenon of fault.

Description of drawings

Fig. 1 is that the inner member of the utility model high power nonlinear load case is faced structural drawing;

Fig. 2 be shown in the inner member backsight structural drawing of high power nonlinear load case;

Fig. 3 be shown in the left side arrangement schematic diagram of high power nonlinear load case;

In accompanying drawing, the mark of each parts is as follows: 1, casing 2, temperature controller 3, A.C. contactor 4, single-phase rectification bridge 5, miniature circuit breaker 6, axial flow blower 7, hole 8, electrochemical capacitor 9, heat insulation foam 10, base plate 11, U-shaped resistance.

Embodiment

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection domain of the present utility model is made more explicit defining.

See also Fig. 1 to Fig. 3, the utility model embodiment comprises: casing 1, described casing 1 Inner Front End is provided with some groups of holes 7, temperature controller 2, A.C. contactor 3, single-phase rectification bridge 4, miniature circuit breaker 5 and axial flow blower 6, described axial flow blower 6 is arranged on the bottom of casing 1, the interior rear end of described casing 1 is provided with electrochemical capacitor 8, and the middle part of described casing 1 is provided with heat insulation foam 9; Described electrochemical capacitor 8 is arranged on base plate 10, but described base plate 10 position up-down adjustment, and described casing 1 left side is provided with some U-shaped resistance 11; Described casing arranged outside has some buttons and hummer.

As shown in Figure 1, described axial flow blower 6 is 3, is arranged at casing 1 bottom and is used for the internal resistance heat dissipation ventilation; Described hole 7 is 144 groups, is used for connecting each electrical equipment, and whole like this electric wire is arranged more neat and artistic.

The utility model is for detection of the performance of AC power when getting involved different loads, and to adapt to the needs of different loads and different capacity, this load can be accomplished to load in continuous 24 hours, and internal resistance is without the red heat phenomenon; This load has overheated automatic protection functions, in the situation that blower fan does not turn, situation overheated, scaling loss can not occur yet, and its safe life is long; The utility model divides power loop to control and has replaced A.C. contactor 2 with miniature circuit breaker 4, has so just avoided selecting A.C. contactor 2 contact that switches on for a long time to burn and cause the phenomenon of fault.

The above is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model instructions and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in scope of patent protection of the present utility model.

Claims

1. high power nonlinear load case, it is characterized in that, comprise casing, described casing Inner Front End is provided with some groups of holes, temperature controller, A.C. contactor, single-phase rectification bridge, miniature circuit breaker and axial flow blower, described axial flow blower is arranged on the bottom of casing, in described casing, the rear end is provided with electrochemical capacitor, and the middle part of described casing is provided with heat insulation foam.

2. high power nonlinear load case according to claim 1, it is characterized in that: described electrochemical capacitor is arranged on base plate, but described base plate position up-down adjustment, described casing left side is provided with some U-shaped resistance.

3. high power nonlinear load case according to claim 1, it is characterized in that: described casing arranged outside has some buttons and hummer.