CN212258753U

CN212258753U - Frequency converter

Info

Publication number: CN212258753U
Application number: CN202020528122.9U
Authority: CN
Inventors: 董连明
Original assignee: Zhejiang Dovol Electric Technology Co ltd
Current assignee: Zhejiang Dovol Electric Technology Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-29
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a frequency converter, including casing, converter controller and converter module, the converter module includes the base plate and sets up electrical element on the base plate, the casing includes drain pan and epitheca, and its characteristics are: the ventilating and radiating filter device is arranged on the bottom shell and comprises a filter device arranged on the side wall of one end of the bottom shell and a pipeline exhaust fan arranged on the side wall of the other end of the bottom shell, and the filter device comprises an air filtering cotton layer and a water absorbing layer which are sequentially arranged according to the air inlet direction. The utility model discloses can reach the purpose to the electric elements cooling in the converter, the air is through filter equipment moreover, can effectively filter dust and steam in the air, can avoid dust and steam to corrode and damage electric elements, prolongs its life.

Description

Frequency converter

Technical Field

The utility model belongs to the technical field of electrical control equipment, especially, relate to a frequency converter.

Background

The working environment of the frequency converter is generally severe, such as dust, air moisture and the like, because the dust is much, the dust enters the frequency converter and is easy to settle and accumulate on the electric elements in the frequency converter, so that the electric elements in the frequency converter are corroded and damaged, and because the moisture is contained in the moisture air, the electric elements in the frequency converter are easy to damage, so that the service life of the frequency converter is shortened, and the faults of the frequency converter are increased. The existing frequency converter is generally provided with a ventilation window and a fan on a shell to dissipate heat, and dust and humid air can enter the frequency converter without obstruction.

Disclosure of Invention

The utility model aims at providing a converter to the not enough of above-mentioned prior art existence.

The utility model adopts the technical proposal that: the utility model provides a frequency converter, includes casing, converter controller and converter module, the converter module includes the base plate and sets up electrical element on the base plate, the casing includes drain pan and epitheca, be equipped with ventilation and heat dissipation filter equipment on the drain pan, ventilation and heat dissipation filter equipment is including locating the pipeline air exhauster on the filter equipment on the lateral wall of drain pan one end and the lateral wall of the drain pan other end, filter equipment is including the cotton layer of filtration and the layer that absorbs water that set gradually according to the air inlet direction.

The water absorbing layer is composed of water absorbing resin particles.

The side walls at the two ends of the bottom shell are respectively provided with an inwards concave pipe cavity, and the filtering device and the pipeline exhaust fan are respectively arranged in the pipe cavities at the two ends of the bottom shell.

After the structure is adopted, compared with the prior art, the utility model the advantage that has is: the utility model discloses can reach the purpose to the electric elements cooling in the converter, the air is through filter equipment moreover, can effectively filter dust and steam in the air, can avoid dust and steam to corrode and damage electric elements, prolongs its life.

Drawings

Fig. 1 is a schematic structural view (partially sectional view) of the present invention.

Detailed Description

The following description is only for the preferred embodiment of the present invention, and the protection scope of the present invention is not limited thereby, the present invention will be further explained with reference to the drawings and the embodiments.

Example, see figure 1: the utility model provides a frequency converter, includes the casing, the casing includes drain pan 1 and epitheca 2, and base and epitheca 2 splice mutually by the lock structure and form the casing, and the lock structure is including setting up public buckle and the female buckle 3 of setting in drain pan 1 upper end at 2 lower extremes of epitheca, and public buckle and female buckle 3 can lock and split each other. The shell is internally provided with a substrate, the substrate is provided with an electric element, the substrate and the electric element are frequency converter modules, and the upper surface of the upper shell 2 is provided with a frequency converter controller electrically connected with the electric element.

And the side walls at the two ends of the bottom shell 1 are respectively provided with an inwards concave pipe cavity. Be equipped with ventilation cooling filter equipment on drain pan 1, ventilation cooling filter equipment includes filter equipment and pipeline air exhauster 4, filter equipment includes the cotton layer of filtration 5 and the layer 6 that absorbs water that set gradually according to the air inlet direction. The filtering device and the pipeline exhaust fan 4 are respectively arranged in the pipe cavities at two ends of the bottom shell 1, the water absorbing layer 6 is formed by filling water absorbing resin particles into the breathable box body, and gaps are formed among the water absorbing resin particles, so that the water absorbing layer 6 can enable air to pass through and absorb water vapor in the air. The converter during operation, pipeline air exhauster 4 starts, and under the pump drainage wind effect of pipeline air exhauster 4, the air is discharged by pipeline air exhauster 4 after filter equipment gets into the inside heat of taking away of casing, reaches the purpose to the electric elements cooling in the converter, and the air is through filter equipment in addition, dust and steam in the effective filtering air of ability can avoid dust and steam to corrode and damage electric elements, prolongs its life. The filter devices require regular maintenance or replacement. The pipe cavity structure which is inwards concave is adopted, so that the filtering device and the pipeline exhaust fan 4 are very convenient to install, and only the filtering device and the pipeline exhaust fan 4 are required to be respectively inserted into respective pipe cavities.

Claims

1. A converter, includes casing, converter controller and converter module, the converter module includes the base plate and sets up electric elements on the base plate, the casing includes drain pan and epitheca, its characterized in that: the ventilating and radiating filter device is arranged on the bottom shell and comprises a filter device arranged on the side wall of one end of the bottom shell and a pipeline exhaust fan arranged on the side wall of the other end of the bottom shell, and the filter device comprises an air filtering cotton layer and a water absorbing layer which are sequentially arranged according to the air inlet direction.

2. A frequency converter according to claim 1, characterized in that: the water absorbing layer is composed of water absorbing resin particles.

3. A frequency converter according to claim 1, characterized in that: the side walls at the two ends of the bottom shell are respectively provided with an inwards concave pipe cavity, and the filtering device and the pipeline exhaust fan are respectively arranged in the pipe cavities at the two ends of the bottom shell.