CN112254442A

CN112254442A - Drying structure of photoelectric pod

Info

Publication number: CN112254442A
Application number: CN202010943099.4A
Authority: CN
Inventors: 马晓鹏; 梁璐
Original assignee: Luoyang Institute of Electro Optical Equipment AVIC
Current assignee: Luoyang Institute of Electro Optical Equipment AVIC
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-01-22

Abstract

The invention relates to a drying structure of a photoelectric pod, which is a drying box arranged on a shell of the photoelectric pod, wherein the upper part and the lower part of the drying box are respectively provided with a semipermeable membrane and an observation window, and a space formed by the drying box, the semipermeable membrane and the observation window is filled with desiccant particles. The humidity sensor is mounted on a side shell of the photoelectric pod and used for monitoring the air humidity inside the photoelectric pod. The fan is arranged inside the photoelectric pod and used for promoting the circulation of the air inside. The drying protection method of the photoelectric pod solves the problem that residual moisture in the photoelectric pod cannot be removed in the existing non-airtight photoelectric pod, can effectively protect the sensor and the electronic equipment in the photoelectric pod, provides a dry working environment for the sensor and the electronic equipment, and can effectively prolong the service life of the photoelectric pod and improve the working reliability and stability of the photoelectric pod.

Description

Drying structure of photoelectric pod

Technical Field

The invention belongs to the technical field of photoelectric pod and relates to a drying structure of a photoelectric pod.

Background

With the rapid development of the photoelectric technology, photoelectric pods used in an onboard environment are increasingly applied to special fields such as frontier defense monitoring, marine patrol evidence obtaining, disaster monitoring, forest fire prevention and the like, the service environment is more and more complex and severe, the photoelectric pods are often required to bear environmental conditions such as damp and heat, salt mist, mold and the like, and the photoelectric pods are also required to face acidic atmosphere, high temperature and high humidity. The photoelectric pod belongs to a precise product, has a dry internal environment, and can effectively ensure the stability and reliability of the operation of an internal sensor and electronic equipment. Generally, the photoelectric pod is designed into a closed structure, which can effectively isolate corrosive media in the environment, but is difficult to achieve airtight sealing, and partial outside air may enter the inside of the photoelectric pod, so that moisture in the air entering the inside of the photoelectric pod can be condensed into water due to temperature change, stays or remains in the photoelectric pod, and erodes sensors and electronic equipment in the photoelectric pod. In order to ensure that the equipment inside the photovoltaic pod can work reliably in a dry environment, the environment inside the photovoltaic pod needs to be dried.

Disclosure of Invention

Technical problem to be solved

In order to avoid the defects of the prior art, the invention provides the drying structure of the photoelectric pod, so that a dry working environment can be provided for the sensor and the electronic equipment in the photoelectric pod, the moisture remained in the air in the photoelectric pod can be effectively removed, and the working stability and reliability of the photoelectric pod are improved.

Technical scheme

A drying structure of a photoelectric pod comprises the photoelectric pod; it is characterized by also comprising a drying box and a fan 10; the drying box comprises a drying box shell 3, a semi-permeable membrane 5, an observation window 7 and drying agent particles; two opposite sides of the drying box shell 3 are provided with a semi-permeable membrane 5 and an observation window 7, the semi-permeable membrane 5 is arranged in a through hole at the bottom of the middle frame 1 of the photoelectric pod, the drying agent particles 4 are arranged in the drying box shell 3; the fan 10 is positioned in the nacelle and fixed on the upper part of the middle frame 1 of the photoelectric nacelle; the semi-permeable membrane 5 has a one-way permeability to moisture, the one-way being that area which only allows moisture from the interior of the pod to enter the desiccant particles.

A humidity sensor 6 is installed on the bulkhead of the photoelectric pod, and the sensor is partially positioned in the inner cavity of the pod.

The observation window 7 is bonded to the drying box housing 3 by silicone rubber.

The blower 10 is installed at a position of the middle frame opposite to the drying box.

Advantageous effects

The invention provides a drying structure of a photoelectric pod, which is characterized in that a drying box is arranged on a shell of the photoelectric pod, a semi-permeable membrane and an observation window are respectively arranged on the upper part and the lower part of the drying box, and drying agent particles are filled in a space formed by the drying box, the semi-permeable membrane and the observation window. The humidity sensor is mounted on a side shell of the photoelectric pod and used for monitoring the air humidity inside the photoelectric pod. The fan is arranged inside the photoelectric pod and used for promoting the circulation of the air inside. The drying protection method of the photoelectric pod solves the problem that residual moisture in the photoelectric pod cannot be removed in the existing non-airtight photoelectric pod, can effectively protect the sensor and the electronic equipment in the photoelectric pod, provides a dry working environment for the sensor and the electronic equipment, and can effectively prolong the service life of the photoelectric pod and improve the working reliability and stability of the photoelectric pod.

Drawings

FIG. 1: is a structural outline schematic diagram of a photoelectric pod applied by the invention

FIG. 2: the inner composition of the drying agent box of the invention is schematic

FIG. 3: is a concrete position schematic diagram of the drying agent box and the humidity indicator on the photoelectric pod

1-middle frame, 2-side shell, 3-drying box shell, 4-drying agent particles, 5-semipermeable membrane, 6-humidity sensor, 7-observation window, 8-main frame, 9-nacelle upper cover, 10-fan, 11-side cover plate, 12-front ball cover, 13-rear ball cover

Detailed Description

The invention will now be further described with reference to the following examples and drawings:

the drying box comprises a middle frame 1, a side shell 2, a drying box shell 3, drying agent particles 4, a semi-permeable membrane 5, a humidity sensor 6, an observation window 7, a main frame 8, a nacelle upper cover 9, a fan 10, a side cover plate 11, a front ball cover 12 and a rear ball cover 13.

The middle frame 1, the front ball cover 12, the rear ball cover 13, the side shell 1, the main frame 8, the side cover plate 11 and the nacelle upper cover 9 jointly form an internal space which is closed in structural form and is internally communicated with one another; the front ball cover 12 and the rear ball cover 13 are fixed on the middle frame 1; the side casing 2 and the side cover 11 are fixed to the main frame 8.

The drying box shell 3 is fixed at the bottom of the middle frame, the fan 10 is fixed at the top of the middle frame, and the drying box shell and the fan are opposite in position, so that the air flowability in the photoelectric pod can be increased.

The semi-permeable membrane 5 is arranged at the upper part of the drying box shell 3, and the observation window 7 is fixed at the bottom of the drying box shell 3 in a silicon rubber bonding mode; the drying box shell 3, the observation window 7 and the semipermeable membrane 5 form a closed space together; the desiccant particles 4 are filled in a closed space formed by the drying box shell 3, the observation window 7 and the semi-permeable membrane 5; the desiccant beads 4 can be observed through the observation window 7.

The semi-permeable membrane 5 has one-way permeability to moisture, allowing only moisture to enter the area where the desiccant particles are located from the interior of the pod; the semipermeable membrane 5 is fixed on the upper part of the drying box shell 3; the drying box shell 3, the observation window 7 and the semipermeable membrane 5 form a closed space; the desiccant particles 4 are filled in a closed space formed by the drying box shell 3, the observation window 7 and the semi-permeable membrane 5; the observation window 7 can observe the change condition of the desiccant particles 4; the fan 10 is fixed on the top of the nacelle middle frame 1; the fan 10 is installed opposite to the drying box housing 3.

The humidity sensor 6 is fixed on the lateral shell 2 of the nacelle; the humidity sensor displays the air humidity inside the nacelle according to the humidity percentage of the external mark, and the air humidity inside the nacelle can be detected in real time.

Claims

1. A drying structure of a photoelectric pod comprises the photoelectric pod; it is characterized by also comprising a drying box and a fan (10); the drying box comprises a drying box shell (3), a semi-permeable membrane (5), an observation window (7) and drying agent particles; two opposite sides of the drying box shell (3) are provided with a semi-permeable membrane (5) and an observation window (7), the semi-permeable membrane (5) is arranged in a through hole at the bottom of the middle frame (1) of the photoelectric pod, the semi-permeable membrane (5) is positioned at one side of the through hole, and the drying agent particles (4) are arranged in the drying box shell (3); the fan (10) is positioned in the nacelle and fixed on the upper part of the middle frame (1) of the photoelectric nacelle; the semi-permeable membrane (5) has a one-way permeability to moisture, the one-way being that area which only allows moisture from the interior of the pod to enter the desiccant particles.

2. The photovoltaic pod drying structure of claim 1, further comprising: and a humidity sensor (6) is arranged on the bulkhead of the photoelectric nacelle, and the sensor part is positioned in the inner cavity of the nacelle.

3. The photovoltaic pod drying structure of claim 1, further comprising: the observation window (7) is bonded on the drying box shell (3) through silicon rubber.

4. The photovoltaic pod drying structure of claim 1, further comprising: the fan (10) is arranged at the position of the middle frame opposite to the drying box.