CN215011295U - Dustproof filtering ventilation board that keeps off rain - Google Patents

Abstract

The utility model discloses a dustproof filtering ventilation board that keeps off rain, including the fixed frame that four frame strip concatenations formed, install filtering board, dust filter pulp and shield plate in the fixed frame in proper order, be equipped with a plurality of honeycomb holes on the filtering board, each the honeycomb hole all inclines to fixed frame outside below. The utility model discloses a fixed frame is formed by four frame strip concatenations, be convenient for dismantle the clearance and change dustproof filter pulp with filter plate and shield plate, filter and shield through installation filter plate and shield plate in fixed frame to the electromagnetism of vent department, and set up dust filter screen and can prevent that the dust from filtering the ventilation board and getting into electromagnetic shield internal portion, guarantee electronic equipment's normal work, and the honeycomb hole is to fixed frame's outside below slope, when enabling outside rainwater to beat on the filter plate, the rainwater can be along the surperficial landing of honeycomb hole to antimagnetic place outside subaerial.

Description

Dustproof filtering ventilation board that keeps off rain

Technical Field

The utility model relates to a dustproof filtering ventilation board technical field that keeps off rain especially relates to a dustproof filtering ventilation board that keeps off rain.

Background

The waveguide ventilation window is used for shielding electromagnetic waves by utilizing the principle of waveguide high-pass filtering, namely the waveguide passes the electromagnetic waves above a cutoff frequency and attenuates the electromagnetic waves below the cutoff frequency, and the attenuation (shielding efficiency) is proportional to the length of the waveguide.

Along with the increasingly severe electromagnetic environment, electronic products need to work normally in a complex electromagnetic environment and meet increasingly strict electromagnetic compatibility standards, so that electromagnetic shielding of the electronic products is very important work, meanwhile, the electronic products generally need heat dissipation in the working process, and therefore, a vent needs to be arranged on an electromagnetic shielding body, and a filtering ventilation plate is arranged on the vent, so that the vent not only needs to meet the requirements of ventilation and heat dissipation, but also needs to prevent electromagnetic wave from spreading.

At present, a filter ventilation plate in the prior art only has the functions of ventilation and electromagnetic shielding, and after long-time use, dust is easily caused to enter an electromagnetic shielding body from the filter ventilation plate, so that the normal work of an electronic product is influenced, even the electronic product is damaged, and the failure rate of equipment is increased; simultaneously, when electronic equipment has rainproof requirement, the mode that prior art need install the shutter outside filtering ventilation board is rain-proof, and not only the mounting means is troublesome, and occupation space is big, still leads to filtering ventilation board to be difficult to dismantle, and then is difficult to clear up it.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem in the prior art, the utility model provides a dustproof filtering ventilation board that keeps off rain has dustproof function, can avoid the dust to get into the internal damage electronic product of electromagnetic shield to be convenient for clear up, simultaneously, still have outstanding rain-proof ability.

The utility model provides a scheme that its technical problem took is: the utility model provides a dustproof filtering ventilation board that keeps off rain, includes fixed frame, the fixed frame plane of projection is square structure, includes four frame strips of splicing each other, installs the filter board that is used for filtering the electromagnetic wave in the fixed frame in proper order, is used for filtering the dust that blocks the dust and crosses the filter pulp, and is used for shielding electromagnetic shield plate, be equipped with a plurality of honeycomb holes that are used for ventilating and filtering the electromagnetic wave on the filter board, each honeycomb holes all inclines to fixed frame outside below.

Further, the frame strip cross-section is "Contraband" shape structure, all gomphosis in the frame strip is crossed to filter board, dust and crosses filter pulp and shield plate four sides, frame strip projection plane is isosceles trapezoid structure, four frame strip hypotenuse butt each other forms fixed frame.

Furthermore, each be equipped with connecting block and spread groove on the mutual butt's in frame strip both ends lateral wall respectively, the connecting block gomphosis is in the spread groove.

Furthermore, each frame strip junction, fixed frame four corners department is equipped with the first fixed orifices that is used for fixed frame strip to connect and is used for installing fixed frame, be equipped with the second fixed orifices on the position that filtering board, dustproof filter pulp and shield plate correspond with first fixed orifices.

Further, the inclination angle of the honeycomb holes is 45 degrees.

Furthermore, conductive foam is arranged on the periphery of the end face, close to the shielding plate, of the fixed frame.

Furthermore, an electromagnetic shielding net for improving the electromagnetic shielding effect is arranged around the outer side of the conductive foam.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an installation filtering board and shield plate filter and shield the electromagnetism of vent department in fixed frame, set up dust filter screen simultaneously between filtering board and shield plate and filter the dust, can prevent that the dust from getting into the electromagnetic shield body inside from filtering the vent plate, guarantee electronic equipment's normal work.

2. The utility model discloses a be equipped with a plurality of honeycomb holes on the filtering board and ventilate and filter the electromagnetic wave, and the honeycomb hole inclines to fixed frame's outside below, when making outside rainwater beat on the filtering board, the rainwater can be along the surperficial landing of honeycomb hole to the outside subaerial in antimagnetic place.

3. The utility model discloses a fixed frame is formed by four frame strip concatenations, is convenient for dismantle fixed frame, and then makes the utility model discloses the mode of fixed frame is dismantled filtering board and shield plate to the accessible and is dismantled the clearance and change dustproof filtration cotton.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural diagram of the present embodiment;

FIG. 2 is an exploded view of the present embodiment;

FIG. 3 is a sectional view of the present embodiment;

fig. 4 is an enlarged view of the embodiment a.

In the figure: 1. a fixed frame; 11. a frame bar; 111. connecting blocks; 112. connecting grooves; 12. a first fixing hole; 2. a filter plate; 21. honeycomb holes; 3. dust filter cotton; 4. a shielding plate; 5. conductive foam; 6. an electromagnetic shielding mesh; 7. and a second fixing hole.

Detailed Description

In order that the present invention may be more readily and clearly understood, the following description of the present invention is provided in connection with the accompanying drawings.

It should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like as used herein are used in the orientation or positional relationship indicated in the drawings for the convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the present invention. "plurality" means two or more unless otherwise specified.

Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

With reference to fig. 1 to 3, a dust-proof and rain-proof filter ventilation board includes a fixed frame 1, wherein a projection surface of the fixed frame 1 is of a square structure and includes four mutually spliced frame strips 11, so that the fixed frame 1 of the present embodiment can be disassembled into four frame strips 11 with the same structure, which is convenient for production, and the filter ventilation board of the present embodiment can be cleaned and updated by disassembling the fixed frame 1;

as shown in fig. 2 and 3, a filter plate 2, a dust filter plate and a shielding net are sequentially installed inside the fixed frame 1 of the present embodiment, wherein the filter plate 2 absorbs and filters electromagnetic waves, so that the intensity of the electromagnetic waves is reduced; the dust filter plate adsorbs dust entering from the filter plate 2, so that the dust is prevented from entering the electromagnetic shield body to influence the normal work of the electronic equipment, and the dust filter plate has excellent dust-proof capability; the shielding plate 4 shields the electromagnetic wave filtered and weakened by the filter plate 2, so that the external electromagnetic wave is prevented from influencing the normal operation of the electronic equipment inside the electromagnetic shielding body.

The filter plate 2 of the embodiment is provided with a plurality of honeycomb holes 21 for ventilating and filtering electromagnetic waves, wherein the honeycomb holes 21 have excellent mechanical and electromagnetic properties, can effectively block the electromagnetism of the ventilation opening, and ensure the normal operation of electronic equipment in the electromagnetic shielding body; each honeycomb hole 21 of the embodiment inclines towards the lower part of the outer side of the fixed frame 1, so that the honeycomb holes 21 on the surface of the filter plate 2 form a structure similar to a louver, when rainwater falls on the filter plate 2, the rainwater can slide down to the ground outside the fixed frame 1 along the surface of the honeycomb holes 21, the rainwater is prevented from entering the electromagnetic shield from the ventilation opening, and the embodiment has good rainwater-proof capability; honeycomb holes 21's inclination in this embodiment is 45, can guarantee that the rainwater that drips on filtering plate 2 can be fast along honeycomb holes 21's surface landing to subaerial to be convenient for produce.

The cross section of the frame strip 11 is in a structure of 'Contraband', so that the filter plate 2, the dust filter cotton 3 and the shielding plate 4 can be respectively embedded in the four frame strips 11 for installation and fixation, and the filter plate 2, the dust filter cotton 3 and the shielding plate 4 can be taken out by disassembling the frame strip 11, thereby facilitating the cleaning and updating of the filter plate 2, the dust filter cotton 3 and the shielding plate 4;

the projection plane of the frame strips 11 is of an isosceles trapezoid structure, so that the oblique edges of the four frame strips 11 are mutually abutted to form the fixed frame 1 in an assembled mode, and the assembly and disassembly are convenient.

As shown in fig. 2, the side walls of the frame bars 11 of the present embodiment abutting against each other are respectively provided with a connecting block 111 and a connecting groove 112, so that when the four frame bars 11 are assembled, the connecting block 111 at one end of the frame bar 11 is inserted into the connecting groove 112 of the adjacent frame bar 11, thereby enhancing the connecting strength of each frame bar 11.

The junction of the adjacent frame strip 11 of this embodiment, fixed frame 1's four corners department still is equipped with first fixed orifices 12 promptly, and simultaneously, filter plate 2, be equipped with second fixed orifices 7 on dust filter pulp 3 and shield plate 4 and the position that the fixed orifices corresponds, after the filtering ventilating board equipment of this embodiment, the accessible makes the bolt pass filter plate 2 in fixed frame 1 with modes such as second fixed orifices 7, dust filter pulp 3 and shield plate 4 are fixed, fix the connection of four frame strips 11 simultaneously, and can make this embodiment filtering ventilating board fixed mounting in vent department.

As shown in fig. 2 and fig. 4, the periphery of the end surface of the fixing frame 1 near the shielding plate 4 is provided with the conductive foam 5, and the periphery of the outer side of the conductive foam 5 is provided with the battery shielding net, so that after the filtering ventilation plate of the present embodiment is installed at the vent, the gap between the filtering ventilation plate and the vent can be electromagnetically shielded through the conductive foam 5 and the electromagnetic shielding net 6, and the electromagnetic shielding capability of the present embodiment is further improved.

The working principle of the embodiment is as follows: in the embodiment, the filter plate 2, the dustproof filter cotton and the shielding plate 4 are sequentially arranged in the fixed frame 1, so that when external electromagnetic waves enter the ventilation opening, the external electromagnetic waves can be absorbed and filtered by the filter plate 2 firstly, the intensity of the electromagnetic waves is weakened, and then the weakened electromagnetic waves are shielded by the shielding plate 4, so that the external electromagnetic waves are prevented from entering the electromagnetic shield from the ventilation opening to interfere with the normal work of the electronic equipment; meanwhile, dust entering from the vent is adsorbed and filtered through the dustproof filter cotton, so that the dust is prevented from entering the electromagnetic shielding body, and the service life of the electronic equipment is shortened;

in the embodiment, the honeycomb holes 21 inclined by 45 degrees towards the lower part of the outer side of the fixed frame 1 are arranged on the filter plate 2, so that external electromagnetic waves can be filtered and shielded, and meanwhile, when rainwater falls on the filter plate 2, the rainwater can slide to the ground outside the fixed frame 1 along the surfaces of the honeycomb holes 21, so that the rainwater is prevented from entering the electromagnetic shield from a ventilation opening, and the embodiment has good rainwater-proof capability;

the fixed frame 1 of this embodiment can be dismantled to the same frame strip 11 of four structures, installs and fixes filtering board 2, dustproof filter pulp and shield plate 4 through assembling four fixed frame 1, makes this embodiment accessible dismantle the mode of frame strip 11 and take out filtering board 2, dust filter pulp 3 and shield plate 4, the clearance and the renewal of this embodiment board of being convenient for, dust filter pulp 3 and shield plate 4.

The above-mentioned embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and modifications made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (7)

1. The utility model provides a dustproof filtering ventilation board that keeps off rain, includes fixed frame, its characterized in that: the fixed frame projection surface is square structure, includes four frame strips of splicing each other, installs the filter board that is used for filtering the electromagnetic wave in the fixed frame in proper order, is used for filtering the dust that blocks the dust and crosses the filter pulp, and is used for shielding electromagnetic shield plate, be equipped with a plurality of honeycomb holes that are used for ventilating and filtering the electromagnetic wave on the filter board, each honeycomb hole all inclines to fixed frame outside below.

2. A dust and rain resistant filter vent panel according to claim 1, further comprising: the cross-section of the frame strip is of an Contraband-shaped structure, four edges of the filtering plate, the dust filtering cotton and the shielding plate are all embedded in the frame strip, the projection surface of the frame strip is of an isosceles trapezoid structure, and the oblique edges of the frame strip are mutually abutted to form a fixed frame.

3. A dust and rain resistant filter vent panel according to claim 2, further comprising: and the side walls of two ends of each frame strip, which are mutually abutted, are respectively provided with a connecting block and a connecting groove, and the connecting blocks are embedded in the connecting grooves.

4. A dust and rain resistant filter vent panel according to claim 3, further comprising: and the joints of the frame strips, namely the four corners of the fixed frame, are provided with first fixed holes for connecting the fixed frame strips and installing the fixed frame, and the positions of the filter plate, the dustproof filter cotton and the shielding plate corresponding to the first fixed holes are provided with second fixed holes.

5. A dust and rain resistant filter vent panel according to claim 1, further comprising: the honeycomb holes are inclined at an angle of 45 degrees.

6. A dust and rain resistant filter vent panel according to claim 1, further comprising: and conductive foam is arranged on the periphery of the end face, close to the shielding plate, of the fixed frame.

7. A dust and rain resistant filter vent panel according to claim 6, further comprising: and an electromagnetic shielding net for improving the electromagnetic shielding effect is further arranged around the outer side of the conductive foam.

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