CN212017084U - A ventilation and dust filter device and electrical equipment with a fan in the forward and reverse directions - Google Patents

Abstract

The utility model discloses a positive and negative ventilation of fan strains dirt device, electrical equipment belongs to ventilation and strains dirt device technical field. Comprises a filtering air window and a positive and negative rotating fan; the filter air window comprises an air window shell and a filter, the filter is fixedly arranged on the inner side of the air window shell, and a protective shutter is arranged on the air window shell; and an air channel is communicated between the forward and reverse rotating fan and the filter and the protection shutter. The device can ensure normal ventilation and dust filtration functions and can reversely rotate to enable air to flow in the opposite direction through the forward and reverse rotating fan, so that dust accumulated on filter materials can be blown away by virtue of air flow, and the potential danger of over-temperature potential of electrical equipment and dust entering caused by dust blockage are effectively prevented.

Description

A ventilation and dust filter device and electrical equipment with a fan in the forward and reverse directions

technical field

The utility model relates to the technical field of ventilation and dust filtering devices, in particular to a ventilation and dust filtering device and electrical equipment with a fan in positive and reverse rotation.

Background technique

Ventilation and dust filter device, also known as filter fan or fan and filter, is a kind of window that is installed on the casing of electrical equipment as a window for the exchange of air flow inside and outside the electrical equipment, which can realize ventilation, heat dissipation or dehumidification of electrical equipment, and prevent dust from entering the electrical equipment. device device.

In the prior art, after a ventilation and dust filter device operates for a period of time, the filter dust will accumulate, the ventilation is not smooth, the heat dissipation effect is reduced, and the hidden danger of overheating inside the electrical equipment is caused. The reasons are:

Since the fans of the ventilation and dust filter device rotate in one direction, the external cold air flows in one direction through the filter and flows into the interior of the device to cool down. After running for a period of time, the dust in the filtered air accumulates on the filter, which blocks the ventilation micro-channel. holes, resulting in a decrease in the ventilation and heat dissipation effect and an increase in the internal temperature.

It is also easy to cause dust to enter the electrical equipment. The reason is that the dust filtered on the filter will accumulate. If it is not removed in time, the dust will enter the electrical equipment under the wind pressure of the fan, resulting in various failures.

In view of the above-mentioned existing technical situation, the applicant of the present invention has made a lot of repeated and beneficial explorations, and the final product has achieved effective results, and has formed the technical solution to be introduced below.

Utility model content

To this end, the present invention provides a ventilation and dust filter device and electrical equipment in which the fan is in a forward and reverse direction, so as to solve the problem of easy accumulation and filtering on the filter in the prior art because the fan structure of the ventilation and dust filter device rotates in one direction. At the same time, the problem of self-cleaning and dust removal cannot be effectively achieved.

In order to achieve the above purpose, the embodiments of the present invention provide the following technical solutions:

A ventilation and dust filter device with a forward and reverse fan, comprising a filter air window and a forward and reverse fan; wherein,

The filter wind window comprises a wind window casing and a filter, the filter is fixedly arranged on the inner side of the wind window casing, and the wind window casing is provided with a protective shutter;

An air passage is communicated between the forward-reversing fan, the filter and the protective shutter.

On the basis of the above-mentioned technical scheme, the utility model can also be improved as follows:

Further, the filter air window and the forward and reverse rotation fans are arranged separately, the filter air window is used to be fixedly arranged on the equipment shell, and the forward and reverse rotation fans are used to be fixedly arranged inside the equipment.

Further, an adapter is provided between the filter air window and the forward-reverse fan.

Further, one side end of the adapter is fixedly connected with the side end of the windshield housing away from the protective shutter, and the other side end of the adapter is fixedly connected with the forward and reverse fan.

Further, the fixed connection between the adapter and the windshield housing and between the adapter and the forward and reverse fan is bolted and/or clamped.

An electrical equipment includes the ventilation and dust filter device with the fan in forward and reverse rotation.

The utility model has the following advantages:

The device is equipped with a forward and reverse fan, which can ensure the normal ventilation and dust filtering function, and can also reverse the air to flow in the opposite direction, so that the dust accumulated on the filter material can be blown away by the airflow, effectively preventing dust. The hidden danger of overheating of electrical equipment caused by blockage and the hidden danger of dust entering.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. The structures depicted in this specification, The ratio, size, etc., are only used to cooperate with the contents disclosed in the description, so as to be understood and read by those who are familiar with this technology. Under the effect of the utility model and the achievable purpose, it should still fall within the scope that the technical content disclosed in the present invention can cover.

1 is one of the schematic diagrams of the overall structure of the embodiment of the present utility model;

FIG. 2 is the second schematic diagram of the overall structure of the embodiment of the present invention.

In the accompanying drawings, the list of components represented by each number is as follows:

1- Filter air window, 11- Air window housing, 12- Filter, 2- Forward and reverse fan, 3- Adapter.

Detailed ways

The embodiments of the present invention will be described below by specific specific embodiments. Those who are familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are of the present invention. Some examples, but not all examples. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in Figures 1-2, the embodiment of the present utility model provides a ventilation and dust filter device with a fan in the forward and reverse directions, including a filter air window 1, a forward and reverse fan 2, and a fan arranged between the filter air window 1 and the forward and reverse fan 2. The adapter 3 between the two is used to use the forward and reverse fan 2 to ensure the normal ventilation and dust filtering function, and at the same time, it can also reverse the air to flow in the opposite direction, so that the dust accumulated on the filter material can be blown away by the airflow, effectively preventing It eliminates the hidden danger of overheating of electrical equipment caused by dust blockage and the hidden danger of dust entering. The specific settings are as follows:

The filter windshield 1 includes a windshield casing 11 and a filter 12. The filter 12 is fixedly arranged on the inner side of the windshield casing 11. Dustproof and waterproof, reducing the filtration pressure of the filter 12, the material of the filter 12 includes but not limited to filter cotton and filter mesh, so as to significantly reduce the possibility of dust being brought in by the external cold air flow into the interior of the body.

One side end of the adapter 3 is fixedly connected with the side end of the windshield housing 11 away from the protective shutter, and the other side end of the adapter 3 is fixedly connected with the forward and reverse fan 2. The adapter 3 It can be flexibly selected according to the installation and cooperation conditions of the forward and reverse fan 2 and the filter air window 1, which improves the installation adaptability and functional feasibility between different structures. The forward and reverse fan 2 and the filter 12 An air passage is communicated with the protective shutter.

It should be noted that the fixed connection methods between the adapter 3 and the windshield housing 11 and between the adapter 3 and the forward and reverse fan 2 include but are not limited to bolt fixing and clamping.

The model of the forward and reverse fan 2 is AOKMAN01.

The use process of the ventilation and dust filter device is as follows:

When in use, the windshield casing 11 of the filter windshield 1 is fixedly arranged on the casing of the equipment, and the forward and reverse rotation fan 2 is electrically connected to an external control module such as a microcontroller.

When the heat dissipation function is required, the forward and reverse fan 2 is started to rotate forward, and the air is forced to convect inside and outside the electrical equipment through the filter air window 1, so as to realize the ventilation and heat dissipation of the equipment.

When the dust removal function is required, the forward and reverse rotation fan 2 is controlled to reverse, so that the air flow can blow away the dust accumulated on the filter material of the filter 12 and discharge the dust accumulated on the filter 12 for a long time to the outside.

It is also possible to cancel the installation of the adapter 3, fix the air window casing 11 of the filter air window 1 on the casing of the equipment, fix the forward and reverse fan 2 inside the equipment, and leave the filter air window 1 and the forward and reverse fans. The air path between 2 can be used.

For those of ordinary skill in the art, according to the teachings of the present invention, without departing from the principle and spirit of the present invention, changes, modifications, substitutions and alterations to the embodiments still fall within the scope of the present invention within the scope of protection.

Claims (6)

1. a ventilation and dust filter device with a forward and reverse rotation of a fan, characterized in that: comprising a filter wind window and a forward and reverse fan; wherein, The filter wind window comprises a wind window casing and a filter, the filter is fixedly arranged on the inner side of the wind window casing, and the wind window casing is provided with a protective shutter; An air passage is communicated between the forward-reversing fan, the filter and the protective shutter. 2. The ventilation and dust filter device with a forward and reverse rotation of a fan according to claim 1, wherein the filter wind window and the forward and reverse fan are arranged separately, and the filter wind window is used to be fixedly arranged on the On the equipment shell, the forward and reverse fan is used to be fixedly arranged inside the equipment. 3 . The ventilation and dust filter device with forward and reverse rotation of the fan according to claim 1 , wherein an adapter is provided between the filter air window and the forward and reverse rotation fan. 4 . 4. The ventilation and dust filter device with a forward and reverse fan as claimed in claim 3, wherein one side end of the adapter is fixedly connected with the side end of the wind window housing away from the protective shutter, so The other side end of the adapter is fixedly connected with the forward and reverse fan. 5 . The ventilation and dust filter device with a forward and reverse rotation of a fan according to claim 3 or 4 , wherein, between the adapter and the wind window housing, and between the adapter and the forward and reverse fan. 6 . The fixed connection method is bolted and/or snapped. 6 . An electrical equipment, characterized in that it comprises the ventilation and dust filter device of any one of claims 1 to 5 .

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