Improvement structure of loading box

Abstract

The invention discloses an improvement structure of a loading box, comprising a box body. A loading zone and a control room are arranged in the box body, the side surface or the bottom end surface of the box body, which corresponds to the loading zone, is provided with a ventilating door, and the top end surface of the box body, which corresponds to the loading zone, is provided with an automaticdoor opening and closing mechanism. The automatic door opening and closing mechanism and the ventilating door arranged on the side surface or the bottom end surface of the box body form a convection current ventilation structure when opened, namely, the loading box adopts lateral air intake or vertical air intake, or hot wind is discharged from the top of the loading box. The invention not only has favourable ventilating and radiating effect, but also is safe and reliable.

Description

technical field [0001] The invention relates to a testing device of power supply equipment, in particular to an improved structure of a load box. Background technique [0002] The super-power load box is used as a simulated load in large-scale generators, high-power UPS, inverter power supply, and large-scale battery systems, and can complete the detection of system parameters and functions. The high-power load element in the super-power load box is an important component of the load box, and it is the key to enabling the equipment to achieve miniaturization, multi-function, and flexibility. The load element will generate a lot of heat when it is working, especially the super-power load box, the heat is more concentrated, if it is not discharged in time, it is very easy to cause serious safety accidents such as burnout or even explosion. Therefore, the ventilation and heat dissipation structure of the load box is suitable for the load box Safe operation is extremely importa...

AI Technical Summary

Problems solved by technology

The load components will generate a lot of heat when they are working, especially the super-high-power load box, where the heat is more concentrated. If it is not discharged in time, serious safety accidents such as burning or even explosion will easily occur. Therefore, the ventilation and heat dissipation structure of the load box is very important for the load box. Safe operation is extremely important, but currently there are few studies on this aspect, and there are many shortcomings in the designed structure. For example, the load box adopts a horizontal ventilation structure. Although it is easier to implement, the actual effect is not ideal.

First of all, the temperature on the load resistor of the super-high-power load box is relatively high. If the horizontal ventilation structure is adopted, the wind enters from the air inlet on one side of the load box, and the high-temperature hot air is blown out from the air outlet on the other side of the load box. If so When there are staff present, they will be scalded by the blown hot air, causing safety accidents. Even if there is no staff present, the hot air blowing to other equipment will also cause certain damage to the equipment, and the horizontal ventilation structure cannot be used in practical applications. To meet the ventilation and heat dissipation requirements of the equipment; secondly, in the prior art, there is a top door air outlet structure, that is, a vent is set on the top surface of the load box to make hot air blow out from the top, but the opening and closing of the vent is manually operated. Completed, it is extremely unsafe for the operator, and the operation is quite inconvenient, which reduces the work efficiency

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