CN215421030U

CN215421030U - Waterproof avionics device

Info

Publication number: CN215421030U
Application number: CN202022164009.XU
Authority: CN
Inventors: 卫首鹏; 周海亮; 张松鹏; 步鹏; 郭文利
Original assignee: Luoyang Institute of Electro Optical Equipment AVIC
Current assignee: Luoyang Institute of Electro Optical Equipment AVIC
Priority date: 2020-09-28
Filing date: 2020-09-28
Publication date: 2022-01-04
Anticipated expiration: 2030-09-28

Abstract

The invention provides a waterproof avionic device.A conductive rubber rope is stuck in an annular groove of an upper cover plate of a case to play a role in sealing; the upper cover plate of the case is fixed with the frame of the case through flat pads and screws. The waterproof performance of the avionic device can be improved, and water cannot enter the case when the top end of the avionic device is in a rain state, and cannot contact the conductive rubber rope; water seeping from the screw holes of the case is discharged, so that accumulation between the cover plate and the frame of the case is avoided; the waterproof measure of the case is realized by structural design, the cost is low, and the reliability is high; even if the case occasionally has a water inlet condition after long-term work, the motherboard module is arranged at the upper end of the case, so that the motherboard module can be prevented from contacting water, and the reliability of the case is improved.

Description

Waterproof avionics device

Technical Field

The invention relates to the field of mechanical structure design, and provides waterproof avionic equipment, which is used for meeting the waterproof capability of the avionic equipment and improving the working reliability of the avionic equipment.

Background

When the avionic device is used, water can enter the interior of the case due to rain, respiration effect and the like, so that the corrosion in the interior of the case is accelerated, and the hidden trouble of short circuit fault of key devices such as a motherboard and the like is increased. In order to prevent water, a conductive rubber rope is generally arranged between the case cover plate and the case frame, but water can enter the mounting surface from the hole of the fixing screw, so that the aging of the conductive rubber rope is accelerated, and then the conductive rubber rope enters the case; water may also enter the gap between the front panel and the frame when the front panel is present in the enclosure. In order to solve the above problems and improve the waterproof performance of the chassis, a new waterproof avionic device structure is urgently needed to solve the problems.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the waterproof avionic device, which avoids water from contacting the conductive rubber rope and entering the interior of the case, and improves the reliability of the electronic device.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a waterproof avionic device can improve the waterproof performance of the electronic device, comprising a chassis frame (1), a chassis upper cover plate (2), a chassis front panel (3) and a conductive rubber rope (4); the conductive rubber rope (4) is stuck in the annular groove (5) of the upper cover plate (2) of the case to play a role in sealing; the upper cover plate (2) of the case is fixed with the frame (1) of the case through a flat gasket (6) and a screw (7).

The hole side of a screw (7) on the chassis frame sinks by 1mm relative to the contact position of the conductive rubber rope (4);

a chute A (8) and a chute B (9) are arranged at the screw hole of the chassis frame.

The two chutes A (8) are positioned on two sides of a frame edge above the chassis frame (1) where the front panel of the chassis is positioned, and the inclined direction of the chutes A (8) is that the outer side is lower than the inner side, namely the water flow flows to the two side panels of the chassis frame (1) along the frame edge of the front panel of the chassis frame (1);

the inclined grooves B (9) are a plurality of and are located at the positions of screws above the case frame (1) where the side panels and the rear panel of the case are located, and the outer sides of the inclined grooves B (9) on the edges of the case frame (1) are lower than the inner sides, namely water flows outwards along the directions of the side panels and the rear panel of the case frame (1).

A gap exists between the upper cover plate (2) of the case and the frame (1) of the case after the upper cover plate and the frame are attached to avoid the capillary phenomenon.

The motherboard module in the case is arranged at the upper end of the case.

The invention has the beneficial effects that:

firstly, the waterproof performance of the avionic device can be improved, water cannot enter the case when the top end of the avionic device is in a rain, and the top end of the avionic device cannot contact a conductive rubber rope;

secondly, water seeping from the screw hole of the case is discharged, so that accumulation between the cover plate and the frame of the case is avoided;

thirdly, the waterproof measure of the case is realized by structural design, so that the cost is low and the reliability is high;

fourthly, even if the case occasionally has water inflow after long-term work, the motherboard module is arranged at the upper end of the case, so that the motherboard module can be prevented from contacting water, and the reliability of the case is improved.

Drawings

Fig. 1(a) and 1(b) are schematic diagrams of an upper cover plate of an avionics device according to the present invention, fig. 1(a) being a side view of the upper cover plate and fig. 1(b) being a cross-sectional view E-E of the upper cover plate.

FIG. 2 is a schematic view of an avionics chassis frame of the present invention

FIG. 3 is a cross-sectional view of an avionics assembly of the present invention

FIG. 4 is a partial cross-sectional view of a screw hole at chute B of the avionics device of the present invention

FIG. 5 is a partial cross-sectional view of a screw hole at chute A of the avionics device of the present invention

1-case frame, 2-upper cover plate, 3-front panel, 4-conductive rubber rope, 5-annular groove of upper cover plate, 6-flat pad, 7-screw, 8-chute A, 9-chute B, 10-upper cover plate and case frame gap.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

As shown in the figure, a waterproof avionics device, in which a conductive rubber cord (4) is glued in an annular groove (5) in an upper cover plate (2) shown in fig. 1(a) and 1 (b); the side of a screw hole of the chassis frame (1) sinks 1mm compared with the contact position of the conductive rubber rope (4), and a chute A (8) and a chute B (9) are arranged at the screw hole; then, according to the figure 3, the case frame (1), the upper cover plate (2) and the front panel (3) are fixed by using screws (7) and flat pads (6); the motherboard module is fixed on the upper side inside the chassis frame.

As shown in fig. 4, when the device is in a rainy state, water permeates into the contact surface of the upper cover plate (2) and the case frame (1) from the screw holes. Due to the existence of the chute B (9), water can be quickly discharged out of the contact surface; and the conductive rubber rope (4) is 1mm higher than the screw hole, and the existence of the gap (10) can avoid the capillary phenomenon, and can effectively prevent water from contacting the conductive rubber rope.

As shown in fig. 5, when the device is in a rainy state, water permeates into the contact surface of the upper cover plate (2) and the case frame (1) from the screw holes. The existence of the chute A (8) can not only discharge water, but also avoid the gap between the front panel and the chassis frame; and the conductive rubber rope is 1mm higher than the screw hole, and the existence of the gap (10) can avoid the capillary phenomenon, and can effectively prevent water from contacting the conductive rubber rope.

As shown in fig. 3, the motherboard module is fixed on the upper side inside the chassis frame, and when water accidentally enters the electronic device, the motherboard and other key electronic modules are located at the upper end of the chassis, so that the key electronic modules can be effectively prevented from contacting with water, and the reliability of the device is greatly improved.

Claims

1. The utility model provides a waterproof avionics equipment, includes quick-witted case frame (1), quick-witted case upper cover plate (2), quick-witted case front panel (3) and conductive rubber rope (4), its characterized in that:

the conductive rubber rope (4) is stuck in the annular groove (5) of the upper cover plate (2) of the case to play a role in sealing; the upper cover plate (2) of the case is fixed with the frame (1) of the case through a flat gasket (6) and a screw (7).

2. A waterproof avionics device according to claim 1, characterized in that:

the hole side of the screw (7) on the chassis frame sinks by 1mm relative to the contact position of the conductive rubber rope (4).

3. A waterproof avionics device according to claim 1, characterized in that:

4. A waterproof avionics device according to claim 3, characterized in that:

the inclined grooves A (8) are two and located on two sides of a frame edge above the chassis frame (1) where the front panel of the chassis is located, and the inclined direction of the inclined grooves A (8) is that the outer side is lower than the inner side, namely water flows to the direction of the two side panels of the chassis frame (1) along the frame edge of the front panel of the chassis frame (1).

5. A waterproof avionics device according to claim 3, characterized in that:

6. A waterproof avionics device according to claim 1, characterized in that:

7. A waterproof avionics device according to claim 1, characterized in that:

the motherboard module in the case is arranged at the upper end of the case.