Distribution box with efficient heat dissipation

Abstract

The invention belongs to the field of oil field power equipment, and particularly relates to a distribution box with efficient heat dissipation. The distribution box comprises a box body, a cooling fan and a brake resistor, wherein the box body is of a double-layer structure, the two layers of the box bodies are respectively called an inner layer box body and an outer layer box body, and the innerlayer box body is a cubic structure surrounded by a steel plate; a base and an upper cover are respectively and fixedly connected to the upper ends and the lower ends of mounting strips; four cover plates are respectively arranged between two adjacent mounting strips; and a gap for ventilation, namely an air flue, is reserved between the cover plates and the inner layer box body. According to thedistribution box, the internal box body where electronic equipment is located is of a fully-closed structure; during heat dissipation, the heat dissipation air flow does not enter the inner layer boxbody, namely the electronic equipment, so that the air flow in the external environment cannot be in contact with the electronic equipment along with the air circulation, and thus the adverse effectof dust on the electronic equipment is thoroughly avoided, and meanwhile, the explosion-proof performance of the distribution box is effectively improved.

Description

Technical field: [0001] The invention relates to the field of oilfield power equipment, in particular to a high-efficiency heat dissipation distribution box. Background technique: [0002] The distribution box is a kind of power control equipment commonly used in oil field production. In many applications in the petroleum and petrochemical industry, there are a large amount of flammable and explosive gases. In this environment, whether the explosion-proof performance of the distribution box is reliable is particularly important for safe production. The heat dissipation of the electrical components and electronic equipment inside the box needs to continuously discharge the high temperature gas in the distribution box through the cooling fan, so as to meet the heat dissipation demand. However, this method of ventilation and heat dissipation will inevitably bring inflammable and explosive gases from the outside into the distribution box, thereby greatly reducing the explosion-...

AI Technical Summary

Problems solved by technology

However, this method of ventilation and heat dissipation will inevitably bring flammable and explosive gases from the outside into the distribution box, thereby greatly reducing the explosion-proof performance of the distribution box

In addition, during the working process of many power equipment (such as oil pumping units), dynamic braking is required at certain times. The core component of dynamic braking is the braking resistor installed in the distribution box. When braking, the braking The dynamic resistor consumes the braking energy through heat dissipation, and the heat will generate a short-term high temperature in the distribution box, thereby affecting the normal operation of the equipment in the distribution box, which undoubtedly poses a challenge to the heat dissipation performance of the distribution box. Higher requirements, and the current distribution box can not meet this requirement

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