CN210725881U

CN210725881U - Ventilation waveguide window for anechoic chamber

Info

Publication number: CN210725881U
Application number: CN201921476666.9U
Authority: CN
Inventors: 吴静平
Original assignee: Changzhou Zhongshuo Electronics Co ltd
Current assignee: Changzhou Zhongshuo Electronics Co ltd
Priority date: 2019-09-06
Filing date: 2019-09-06
Publication date: 2020-06-09
Anticipated expiration: 2029-09-06

Abstract

The utility model discloses a ventilation waveguide window for anechoic chamber, including the waveguide window frame, the fixed ventilation pipe that has cup jointed of waveguide window frame, the ventilation pipe is provided with the connecting plate, the through-hole has been seted up to the connecting plate, the through-hole is cup jointed with the ventilation pipe is fixed, the fluting has been seted up to the connecting plate, the fluting is provided with the flabellum, the connecting plate is provided with the connecting rod, connecting rod fixedly connected with motor, the output and the flabellum transmission of motor are connected, the draw-in groove has been seted up to the connecting plate, connecting rod fixedly connected with gag lever post, the draw-in. The utility model discloses utilize the mode that sets up of flabellum, the motor circular telegram drives the flabellum and rotates, and the wind speed flows in the increase ventilation pipe, and the filter screen can filter external dust particle and get into the anechoic chamber from the ventilation waveguide window, avoids because the aperture of waveguide window is more and more little, and the windage rises sharply, the low condition of ventilation radiating effect.

Description

Ventilation waveguide window for anechoic chamber

Technical Field

The utility model relates to a waveguide window field, in particular to a ventilation waveguide window for anechoic chamber.

Background

With the increasingly severe electromagnetic environment, electronic products need to work normally in a complex electromagnetic environment, and increasingly strict electromagnetic compatibility standards need to be met, so that electromagnetic shielding of the electronic products is one of very important means. Because electronic products generally all need carry out ventilation cooling, need set up the ventilation window on the electromagnetic shield, this ventilation window both need satisfy ventilation cooling's requirement, can prevent electromagnetic wave propagation again. The existing ventilation waveguide window utilizes the cut-off characteristic of a metal pipe, but the aperture of the conventional waveguide window is smaller and smaller along with the improvement of the frequency of electromagnetic waves, so that the wind resistance is increased rapidly, and the ventilation and heat dissipation effects are low.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a ventilation waveguide window for anechoic chamber to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a ventilation waveguide window for anechoic chamber, includes the waveguide window frame, the fixed cover of inner chamber of waveguide window frame has connect the ventilation pipe, the bottom of ventilation pipe is provided with the connecting plate, the through-hole has been seted up at the middle part of connecting plate upper surface, the inner chamber of through-hole is fixed cup joints with the bottom of ventilation pipe outer wall, the fluting has been seted up at the middle part of connecting plate lower surface, the grooved inner chamber is provided with the flabellum, the lower surface symmetry of connecting plate is provided with connecting rod, two the bottom fixedly connected with motor of connecting rod, the output and the flabell.

Preferably, the connecting plate is provided with clamping grooves on two sides of the bottom, the connecting rod is fixedly connected with a limiting rod on the top, an inner cavity of the clamping groove is in sliding sleeve joint with the limiting rod, threaded holes are formed in two sides of the connecting plate, the inner cavity of each threaded hole is communicated with the inner cavity of the corresponding clamping groove, a bolt is sleeved on the inner cavity of each threaded hole in a threaded manner, and one end of the bolt is connected with the limiting rod in a laminating manner.

Preferably, one side of the waveguide window frame is a rectangular array and is provided with connecting holes, and one side of the waveguide window frame is fixedly connected with a leather pad.

Preferably, one end fixedly connected with a plurality of metal pipes of ventilation pipe inner chamber, the one end fixedly connected with of ventilation pipe inner chamber is sealed to fill up, just sealed the pad and be located the outer wall of metal pipe, the fixed absorbing material cover that has cup jointed in bend department of ventilation pipe inner chamber.

Preferably, the fixed cover in bottom in ventilation pipe inner chamber has connect the first lantern ring, the fixed cover in bottom in ventilation pipe inner chamber has connected the second lantern ring, the bottom in ventilation pipe inner chamber is provided with the filter screen, just the filter screen is located between first lantern ring and the second lantern ring.

Preferably, the motor is electrically connected with an external power supply through an external motor switch.

The utility model discloses a technological effect and advantage:

1. the utility model utilizes the arrangement mode of the fan blades, the bottom of the ventilation pipe is fixedly sleeved with the connecting plate, the fan blades are arranged in the grooves of the connecting plate, the motor is electrified to drive the fan blades to rotate, the air speed in the ventilation pipe is increased to flow, the filter screen can filter out external dust particles to enter the anechoic chamber from the ventilation waveguide window, and the conditions that the air resistance is rapidly raised and the ventilation and heat dissipation effects are low because the aperture of the waveguide window is smaller and smaller are avoided;

2. the utility model discloses utilize the mode that sets up of tubular metal resonator and absorbing material cover, a plurality of tubular metal resonators set up in the one end of ventilation pipe, and seal up to it with sealed the pad, filter the electromagnetic wave, not only keep the ventilation cooling function of waveguide window, and improve its microwave absorbing effect, and the fixed absorbing material cover that has cup jointed in ventilation pipe pipeline department further filters the absorption to the electromagnetic wave, avoids the electromagnetic wave diffusion.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the side internal structure of the present invention.

In the figure: 1. a waveguide window frame; 101. connecting holes; 2. a vent pipe; 3. a connecting plate; 301. a through hole; 302. grooving; 4. a fan blade; 5. a connecting rod; 501. a limiting rod; 502. a bolt; 6. a motor; 7. a leather pad; 8. a metal tube; 9. a gasket; 10. a wave-absorbing material sleeve; 11. and (4) a filter screen.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a ventilation waveguide window for anechoic chamber as shown in figure 1-2, which comprises a waveguide window frame 1, a ventilation pipe 2 is fixedly sleeved in the inner cavity of the waveguide window frame 1, a connecting plate 3 is arranged at the bottom of the ventilation pipe 2, a through hole 301 is arranged at the middle part of the upper surface of the connecting plate 3, the inner cavity of the through hole 301 is fixedly sleeved with the bottom of the outer wall of the ventilation pipe 2, a slot 302 is arranged at the middle part of the lower surface of the connecting plate 3, the inner cavity of the slot 302 is provided with a fan blade 4, a motor switch is opened, the output end of a motor 6 drives the fan blade 4 to rotate, the gas flow of the ventilation pipe 2 is increased, connecting rods 5 are symmetrically arranged at the lower surface of the connecting plate 3, the bottom parts of the two connecting rods 5 are fixedly connected with a motor 6, the, the inner cavity of the clamping groove is in sliding sleeve connection with the limiting rod 501, threaded holes are formed in two sides of the connecting plate 3, the inner cavity of each threaded hole is communicated with the inner cavity of the clamping groove, a bolt 502 is in threaded sleeve connection with the inner cavity of each threaded hole, one end of the bolt 502 is connected with the limiting rod 501 in a fit mode, and the bolt 502 limits the position of the limiting rod 501, so that the position of the motor 6 is fixed, the motor 6 is convenient to disassemble and maintain, and the filter screen 11 and the ventilation pipe 2 are convenient to clean;

one side of the waveguide window frame 1 is a rectangular array and is provided with connecting holes 101, one side of the waveguide window frame 1 is fixedly connected with a leather gasket 7, one end of an inner cavity of the ventilation pipe 2 is fixedly connected with a plurality of metal pipes 8, one end of the inner cavity of the ventilation pipe 2 is fixedly connected with a sealing gasket 9, the sealing gasket 9 is positioned on the outer wall of each metal pipe 8, a wave-absorbing material sleeve 10 is fixedly sleeved at a bend of the inner cavity of the ventilation pipe 2, the bottom of the inner cavity of the ventilation pipe 2 is fixedly sleeved with a first lantern ring, the bottom of the inner cavity of the ventilation pipe 2 is fixedly sleeved with a second lantern ring, the bottom of the inner cavity of the ventilation pipe 2 is provided with a filter screen 11, the sealing gasket 9 plays a role in connecting and sealing two adjacent metal pipes 8;

the motor 6 is electrically connected with an external power supply through an external motor switch.

This practical theory of operation: firstly, assembling a anechoic chamber ventilation waveguide window, fixing a leather pad 7 on one side of a waveguide window frame 1, fixing a metal pipe 8 and a sealing pad 9 at one end of an inner cavity of a ventilation pipe 2, fixedly installing a wave-absorbing material sleeve 10 at a bend of the ventilation pipe 2, fixedly connecting one end of the ventilation pipe 2 with the inner cavity of the waveguide window frame 1, fixing the waveguide window frame 1 on a wall body by using a hexagon nut, fixing a first lantern ring, a filter screen 11 and a second lantern ring in the ventilation pipe 2, fixedly sleeving a connecting plate 3 with the ventilation pipe 2, and finally fixing a motor 6 and a fan blade 4 below the connecting plate 3;

after the ventilation waveguide window is installed, a motor switch is opened, the output end of a motor 6 drives a fan blade 4 to rotate, the ventilation pipe 2 is increased in air flow, large particles of external impurities are filtered by a filter screen 11, a sealing gasket 9 plays a role in connecting and sealing two adjacent metal pipes 8, and an electromagnetic wave is filtered by a wave-absorbing material sleeve 10, so that adverse effects of the electromagnetic wave on the outside are avoided;

the ventilation waveguide window is required to regularly clean the filter screen 11 and the metal pipe 8, so that the metal pipe 8 and the filter screen 11 are prevented from being blocked, the wind resistance is increased, and the ventilation effect of the ventilation waveguide window is influenced.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. A ventilation waveguide window for anechoic chambers, comprising a waveguide window frame (1), characterized in that: the fixed ventilation pipe (2) that has cup jointed of inner chamber of waveguide window frame (1), the bottom of ventilation pipe (2) is provided with connecting plate (3), through-hole (301) have been seted up at the middle part of connecting plate (3) upper surface, the inner chamber of through-hole (301) and the fixed bottom of ventilation pipe (2) outer wall cup joint, fluting (302) have been seted up at the middle part of connecting plate (3) lower surface, the inner chamber of fluting (302) is provided with flabellum (4), the lower surface symmetry of connecting plate (3) is provided with connecting rod (5), two the bottom fixedly connected with motor (6) of connecting rod (5), the output and the flabellum (4) transmission of motor (6) are connected.

2. A ventilation waveguide window for an anechoic chamber according to claim 1, wherein: the clamping groove is formed in the two sides of the bottom of the connecting plate (3), the limiting rod (501) is fixedly connected to the top of the connecting rod (5), the inner cavity of the clamping groove is in sliding sleeve connection with the limiting rod (501), threaded holes are formed in the two sides of the connecting plate (3), the inner cavity of each threaded hole is communicated with the inner cavity of the corresponding clamping groove, the inner cavity of each threaded hole is in threaded sleeve connection with the bolt (502), and one end of the bolt (502) is connected with the limiting rod (501) in a laminating mode.

3. A ventilation waveguide window for an anechoic chamber according to claim 1, wherein: one side of the waveguide window frame (1) is a rectangular array and is provided with connecting holes (101), and one side of the waveguide window frame (1) is fixedly connected with a leather pad (7).

4. A ventilation waveguide window for an anechoic chamber according to claim 1, wherein: the one end fixedly connected with of ventilation pipe (2) inner chamber a plurality of tubular metals (8), the sealed pad (9) of one end fixedly connected with of ventilation pipe (2) inner chamber, just sealed pad (9) are located the outer wall of tubular metal (8), wave-absorbing material cover (10) have been cup jointed to the bend department of ventilation pipe (2) inner chamber fixedly.

5. A ventilation waveguide window for an anechoic chamber according to claim 1, wherein: the bottom of ventilation pipe (2) inner chamber is fixed to be cup jointed first lantern ring, the bottom of ventilation pipe (2) inner chamber is fixed to be cup jointed the second lantern ring, the bottom of ventilation pipe (2) inner chamber is provided with filter screen (11), just filter screen (11) are located between first lantern ring and the second lantern ring.

6. A ventilation waveguide window for an anechoic chamber according to claim 1, wherein: the motor (6) is electrically connected with an external power supply through an external motor switch.