A high shielding ventilation window structure

Abstract

The present invention discloses a high-shielding ventilation window structure within the technical field of shelters. The high-shielding ventilation window structure includes a window frame with a ventilation window disposed therein. The structure is characterized in that a first cutoff waveguide plate is disposed on the inner side of the ventilation window, a shielding cover is connected to the inner side of the first cutoff waveguide plate, the shielding cover is filled with a wire ball, a second cutoff waveguide plate is disposed on the upper side of the shielding cover, an axial flow fan is disposed on the upper side of the second cutoff waveguide plate, and the first and second cutoff waveguide plates have different apertures. The high-shielding ventilation window of the present invention, through the cooperation of two inner and outer cutoff waveguide plates with different apertures and the wire ball within the shielding cover, can shield electromagnetic waves of a wider frequency band, thereby improving the shielding effect and ensuring the safe use of the shelter.

Description

Technical Field

[0001] The present invention relates to the technical field of enclosure structures for shelters, electronic equipment rooms, etc., and in particular to a high-shielding ventilation window structure. Background Art

[0002] Shielded ventilation windows are primarily used as necessary ventilation openings in shelters, electronic equipment rooms, and other facilities, providing both electromagnetic shielding and good ventilation. In recent years, with the widespread use of electronic equipment, the shielding requirements for the enclosures of shelters, equipment rooms, and other facilities have become increasingly stringent.

[0003] In the prior art, in order to achieve electromagnetic shielding, a cutoff waveguide plate is often provided on the inner side of the ventilation window to attenuate electromagnetic waves. However, due to the fixed aperture of the cutoff waveguide plate, it can only shield electromagnetic waves in a specific frequency band. Electromagnetic waves in certain frequency bands may even be amplified when passing through the cutoff waveguide plate, causing shielding failure, affecting the normal operation of electronic equipment, and posing a safety hazard.

[0004] Patent 201620264420.5 discloses a high-frequency cutoff waveguide window. Its main structure includes an outer waveguide window, an inner waveguide window, and a metal mesh. The outer waveguide window, inner waveguide window, and metal mesh have the same overall size. The metal mesh is arranged between the outer and inner waveguide windows. The outer and inner waveguide windows are evenly provided with a number of through holes of the same shape. The metal mesh adopts a mesh design, and the mesh density and material of the metal mesh can be adjusted. During the electromagnetic compatibility debugging process, the shielding effectiveness of the waveguide window can be adjusted according to actual conditions by changing the mesh density and material of the metal mesh. This high-frequency cutoff waveguide window significantly improves the shielding effect of waveguide windows based on existing technologies, but still cannot meet increasingly stringent electromagnetic shielding requirements. Summary of the Invention

[0005] The object of the present invention is to provide a high-shielding ventilation window structure that can effectively prevent electromagnetic leakage.

[0006] The object of the present invention is achieved as follows: a high-shielding ventilation window structure includes a window frame, a ventilation window is provided in the window frame, a first cutoff waveguide plate is provided on the inner side of the ventilation window, a shielding cover is connected to the inner side of the first cutoff waveguide plate, the shielding cover is filled with sheet metal wire balls, a second cutoff waveguide plate is provided on the upper side of the shielding cover, an axial flow fan is provided on the upper side of the second cutoff waveguide plate, the apertures of the cutoff waveguide tubes on the first cutoff waveguide plate and the second cutoff waveguide plate are different and the radial surfaces are both hexagonal.

[0007] The high-shielding ventilation window of the present invention forms a three-dimensional shielding structure by providing a shielding cover and filling the shielding cover with a sheet-shaped metal wire ball, compared with the flat metal wire mesh shielding structure used in the prior art, thereby improving the shielding effect. Moreover, since the cross-section of the metal wire in the metal wire ball is sheet-shaped, compared with the metal wire ball with a circular cross-section in the prior art, the reflection and attenuation chance of the electromagnetic wave in the metal wire ball is increased, so that the electromagnetic waves of each frequency band interfere with each other in the metal wire ball, thereby consuming most of the electromagnetic waves of each frequency band. Moreover, since an L-shaped channel is formed in the shielding cover, the electromagnetic wave filtering path is extended, further improving the shielding effect. In addition, the aperture of the first cutoff waveguide plate and the second cutoff waveguide plate can be selected according to the shielding requirements of the square cabin, etc., thereby further enhancing the shielding ability of electromagnetic waves of a specific frequency band. In summary, the high-shielding ventilation window of the present invention can improve the electromagnetic shielding performance of the square cabin, etc. as a whole, achieve effective shielding of electromagnetic waves of a wider frequency band, and has the advantages of simple structure and low cost.

[0008] As a further improvement of the present invention, the thickness of the first cutoff waveguide plate and the second cutoff waveguide plate is not less than seven times of their respective apertures to ensure that the path of the electromagnetic wave passing through the cutoff waveguide plate remains long enough to fully absorb the electromagnetic wave.

[0009] As a further improvement of the present invention, longitudinal and / or transverse metal mesh panels are provided within the shielding enclosure. This creates multiple compartments within the shielding enclosure, each of which is filled with sheet metal clumps. This effectively prevents the sheet metal clumps from shrinking and tangling during long-term use, which could affect shielding and ventilation.

[0010] As a further improvement of the present invention, the shielding cover includes an inner panel, a lower sloping panel connected to the lower end of the inner panel, and side sealing panels connected to both sides of the inner panel and the lower sloping panel. The lower sloping panel slopes downward from rear to front and its distal end connects to the window frame. This shielding cover has a simple structure, and the tilted lower end of the shielding cover reduces the impact on the interior space of the cabin, resulting in a more aesthetically pleasing appearance.

[0011] As a further improvement of the present invention, the end of the lower inclined plate is connected to the lower eaves of the window frame, so that rainwater that hits or splashes in from the window frame in windy and rainy weather can naturally flow out of the window, avoiding the accumulation of rainwater at the bottom of the first cutoff waveguide plate and the shielding cover after hitting the window frame.

[0012] As a further improvement of the present invention, an L-shaped fan base plate is provided within the shielding cover. The horizontal edges of the L-shaped fan base plate are welded and fixed to the side sealing plates and inner side plates, and the upper ends of the vertical edges are flush with the upper ends of the side sealing plates and inner side plates. A second cutoff waveguide plate is inserted into the bottom of the L-shaped fan base plate, and the axial fan is fixed to the L-shaped fan base plate. An oblique plug-in slot is provided on the outer side of the side sealing plates, and first locating pins corresponding to the ends of the oblique plug-in slot are provided on both sides of the window frame. The vertical edge of the L-shaped fan base plate is detachably connected to the cabin wall. Thus, the second cutoff waveguide plate, the axial fan, and the shielding cover form an integrated structure. This integrated structure can be hung and installed as a whole through the cooperation of the oblique plug-in slot and the first locating pin, and then the vertical edge of the L-shaped fan base plate is connected to the cabin wall, thereby improving installation efficiency and connection reliability.

[0013] As a further improvement of the present invention, a hinge is provided at the upper end of the ventilation window, which is hinged to the window frame via the hinge. A first gusset plate and a second gusset plate are symmetrically provided on the inner side of the ventilation window. Each of the first gusset plate and the second gusset plate includes a vertical connecting edge, a short horizontal edge connected to the upper end of the connecting edge, a long horizontal edge connected to the lower end of the connecting edge, and an L-shaped supporting edge connected between the short horizontal edge and the long horizontal edge. The connecting edge is hinged to the inner side of the ventilation window. Therefore, when the ventilation window is opened, the first gusset plate and the second gusset plate can be opened and supported within the window frame, so that the ventilation window remains stably open.

[0014] As a further improvement of the present invention, second locating pins are provided on the lower portions of both sides of the window frame, and locating holes are provided at the corners of the L-shaped support edges to cooperate with the second locating pins. Thus, when the ventilating window is opened, the locating holes and the second locating pins cooperate to keep the ventilating window open at a fixed angle.

[0015] As a further improvement of the present invention, a rotation locking pin is provided on the first gusset plate, and a connection hole is provided on the second gusset plate at a position corresponding to the rotation locking pin, so that when the vent window is closed, the first gusset plate and the second gusset plate can be stably folded together.

[0016] As a further improvement of the present invention, the ventilation window includes a frame, an outer panel, an inner panel and a core panel. The frame cross section is mainly H-shaped, including an outer long connecting surface, an inner short connecting surface, and a middle horizontal connecting surface connected between the outer long connecting surface and the inner short connecting surface. The upper end of the outer long connecting surface is connected to an upper horizontal connecting surface. The outer panel is fixed to the outer side of the outer long connecting surface and the outer surface is flush with the upper horizontal connecting surface. The upper end of the inner short connecting surface is connected to a small horizontal connecting surface. The inner panel is fixed to the inner side of the inner short connecting surface and the outer surface is flush with the small horizontal connecting surface. The C-shaped space formed by the upper horizontal connecting surface, the outer long connecting surface, the middle horizontal connecting surface and the small horizontal connecting surface is filled with a sealing strip. The core panel is sandwiched between the outer panel and the inner panel. The ventilation window has a strong structural integrity and a good waterproof sealing effect. The provision of the upper horizontal connecting surface facilitates the connection of the ventilation window to the hinge, and the provision of the inner short connecting surface facilitates the hinged connection of the first and second gussets to the ventilation window. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of an embodiment of a high-shielding ventilation window structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the ventilation window structure of the high-shielding ventilation window structure of the present invention.

[0019] Figure 3 for Figure 2 K-direction diagram.

[0020] Figure 4 for Figure 2 P-direction diagram.

[0021] Figure 5 This is a schematic diagram of another embodiment of the high-shielding ventilation window structure of the present invention.

[0022] Among them, 1 window frame, 1A inner frame, 1B mouth frame, 2 first cutoff waveguide plate, 3A inner side plate, 3B lower inclined plate, 3C oblique plug-in slot, 4 sheet metal wire ball, 5 second cutoff waveguide plate, 6 axial flow fan, 7 metal mesh plate, 8 L-shaped fan base plate, 9A outer long connecting surface, 9B inner short connecting surface, 9C middle horizontal connecting surface, 9D upper horizontal connecting surface, 9E small horizontal connecting surface, 10 outer panel, 11 inner panel, 12 core board, 13 sealing strip, 14 hinge, 15 first support angle plate, 16 second support angle plate, 17 L-shaped support edge, 18 positioning hole, 19 rotary locking pin. DETAILED DESCRIPTION

[0023] like Figure 1The high-shielding ventilation window structure shown includes a window frame 1, in which a ventilation window is provided. A first cutoff waveguide plate 2 is provided on the inside of the ventilation window, a shielding cover is connected to the inside of the first cutoff waveguide plate 2, a second cutoff waveguide plate 5 is provided on the upper side of the shielding cover, and an axial fan 6 is provided on the upper side of the second cutoff waveguide plate 5. The radial surfaces of the cutoff waveguide tubes on the first cutoff waveguide plate 2 and the second cutoff waveguide plate 5 are both hexagonal. Compared with the cutoff waveguide tube with a rectangular radial surface, the cutoff waveguide tube with a hexagonal radial surface has a better effect of attenuating electromagnetic waves. In this embodiment, the aperture and thickness of the first cutoff waveguide plate and the second cutoff waveguide plate are different. The specific aperture and thickness can be designed according to the electromagnetic wave band range that needs to be shielded in the cabin, machine room, etc. and the shielding level to be achieved. However, preferably, the thickness of the first cutoff waveguide plate 2 and the second cutoff waveguide plate 5 is not less than seven times their respective apertures to ensure that the path of the electromagnetic wave through the cutoff waveguide plate remains long enough to fully attenuate the electromagnetic wave.

[0024] like Figure 1 As shown, the shielding cover includes an inner panel 3A, a lower inclined panel 3B connected to the lower end of the inner panel 3A, and side sealing panels connected to both sides of the inner panel 3A and the lower inclined panel 3B. The lower inclined panel 3B tilts downward from the back to the front and its end is connected to the window frame 1. Specifically, the window frame 1 includes an inner frame 1A and an opening frame 1B, wherein the inner frame 1A has an L-shaped cross-section and is arranged at the inner corner of the wall around the window hole. One side of the opening frame 1B profile is covered on the outer corner of the wall around the window hole and the inner frame 1A, and the other side extends into the window hole to form a fixed position for the ventilation window. In this embodiment, the end of the lower inclined panel 3B is connected to the opening frame 1B. At this time, the ventilation range of the window can be maximized. The shielding cover has a simple structure, and because the lower end of the shielding cover is tilted, the impact on the internal space of the cabin is reduced, avoiding accidents such as people hitting their heads. The outer side of the shielding cover is connected to the first cutoff waveguide plate 2, and the upper side of the shielding cover is connected to the second cutoff waveguide plate 5. The shielding enclosure is provided with longitudinal and transverse metal mesh panels 7, thereby forming multiple well-field-like compartments within the enclosure, each of which is filled with a sheet-like metal wire mass 4. The sheet-like metal wire mass 4 is a metal wire mass in which all the wires have a sheet-like cross-section. Because the metal wires within the metal wire mass are sheet-like in cross-section, the chances of electromagnetic waves reflecting within the mass are significantly increased, allowing electromagnetic waves of various frequency bands to interact with each other within the mass, thereby consuming the vast majority of electromagnetic waves in each frequency band. Furthermore, the L-shaped channel formed within the shielding enclosure extends the electromagnetic wave filtering path, further enhancing the shielding effectiveness. The metal mesh panels 7 have large pores, so they do not affect the ventilation of the high-shielding ventilation windows. Their primary function is to prevent the sheet-like metal wire mass 4 from shrinking and tangling during long-term use, which could affect shielding and ventilation. It should be noted that in this embodiment, the metal mesh panels 7 are arranged in a well-field-like pattern to achieve optimal results. However, in actual implementation, the metal mesh panels 7 can also be arranged only longitudinally or transversely, depending on actual needs.

[0025] like Figure 1 As shown, in this embodiment, the second cutoff waveguide plate 5, the axial flow fan 6, and the shielding cover adopt an integrated structure. Specifically, an L-shaped fan base plate 8 is provided in the shielding cover. The horizontal edges of the L-shaped fan base plate 8 are welded and fixed to the side sealing plate and the inner plate 3A, and the upper ends of the vertical edges are flush with the upper ends of the side sealing plate and the inner plate 3A. The second cutoff waveguide plate 5 is inserted into the bottom of the L-shaped fan base plate 8 and fixed by a detachable part. The axial flow fan 6 is fixed to the L-shaped fan base plate 8. The outer side of the side sealing plate is provided with an oblique plug-in slot 3C. The two sides of the window frame are provided with first positioning pins corresponding to the ends of the oblique plug-in slot 3C. Therefore, the second cutoff waveguide plate 5, the axial flow fan 6, and the shielding cover can be integrally mounted by the cooperation of the oblique plug-in slot 3C and the first positioning pins. Then, the vertical edge of the L-shaped fan base plate 8 is connected to the cabin wall, thereby improving installation efficiency and connection reliability.

[0026] The shielding cover is detachably connected to the first and second cutoff waveguide plates 2 and 5. Specifically, enclosures are provided around the upper and outer sides of the shielding cover. Correspondingly, pressure plates are provided around the inner side of the first cutoff waveguide plate 2 and the lower side of the second cutoff waveguide plate 5. The pressure plates and enclosures are connected by detachable components. A metal mesh plate is sandwiched between the pressure plates and the enclosures, ensuring ventilation while preventing the sheet-like metal wire mass 4 from being squeezed outward and tangled due to deformation during use.

[0027] The high-shielding ventilation window of this embodiment forms a three-dimensional shielding structure by providing a shielding cover and filling the shield with a sheet-like metal wire ball 4. Since the cross-section of the metal wire in the metal wire ball is sheet-like, the reflection opportunity of the electromagnetic wave in the metal wire ball is increased, so that the electromagnetic waves of each frequency band fight with each other in the metal wire ball, thereby consuming the vast majority of electromagnetic waves of each frequency band. In addition, the aperture of the first cutoff waveguide plate and the second cutoff waveguide plate can be selected according to the shielding requirements of the square cabin, etc., so as to further enhance the shielding ability of electromagnetic waves of a specific frequency band. In summary, the high-shielding ventilation window of this embodiment can improve the electromagnetic shielding performance of the square cabin, etc. as a whole, realize effective shielding of electromagnetic waves of a wider frequency band, and has the advantages of simple structure and low cost.

[0028] like Figure 2-4As shown, the ventilation window includes a frame, an outer panel 10, an inner panel 11, and a core panel 12. The frame has an H-shaped cross-section, including an outer long connecting surface 9A, an inner short connecting surface 9B, and a middle horizontal connecting surface 9C connected between the outer long connecting surface 9A and the inner short connecting surface 9B. The upper end of the outer long connecting surface 9A is connected to the upper horizontal connecting surface 9D. The outer panel 10 is fixed to the outside of the outer long connecting surface 9A and its outer surface is flush with the upper horizontal connecting surface 9D. The upper end of the inner short connecting surface 9B is connected to the small horizontal connecting surface 9E. The inner panel 11 is fixed to the inside of the inner short connecting surface 9B and its outer surface is flush with the small horizontal connecting surface 9E. The C-shaped space formed by the upper horizontal connecting surface 9D, the outer long connecting surface 9A, the middle horizontal connecting surface 9C, and the small horizontal connecting surface 9E is filled with a sealing strip 13. The core panel 12 is sandwiched between the outer panel 10 and the inner panel 11. The core panel 12 is preferably made of a spunbond honeycomb core panel. This ventilation window has a strong structural integrity and good waterproof sealing effect.

[0029] A hinge 14 is provided at the upper end of the ventilation window, and the ventilation window is hinged to the mouth frame 1B of the window frame 1 through the hinge 14. Specifically, the upper horizontal connecting surface 9D of the upper side frame of the ventilation window is detachably connected to one side of the hinge 14. A first gusset plate 15 and a second gusset plate 16 are symmetrically provided on the inner side of the ventilation window. The first gusset plate 15 and the second gusset plate 16 both include a vertical connecting edge, a short horizontal edge connected to the upper end of the connecting edge, a long horizontal edge connected to the lower end of the connecting edge, an L-shaped supporting edge 17 connected between the short horizontal edge and the long horizontal edge, the short side of the L-shaped supporting edge 17 is connected to the long horizontal edge, the long side of the L-shaped supporting edge 17 is connected to the short horizontal edge, and the connecting edge is hinged on the inner side of the ventilation window. Specifically, as Figure 3-4 As shown, the first gusset plate 15 and the second gusset plate 16 are hinged to the inner short connecting surface 9B of the frame of the ventilation window on both sides. A second positioning pin is provided at the lower part of both sides of the window frame 1, and a positioning hole 18 that cooperates with the second positioning pin is provided at the corner of the L-shaped support edge 17, so that when the ventilation window is opened, the first gusset plate 15 and the second gusset plate 16 can be opened, so that the positioning hole 18 is sleeved on the second positioning pin, keeping the ventilation window open stably at a fixed angle. A rotary locking pin 19 is provided on the first gusset plate 15, and a connecting hole is provided on the second gusset plate 16 corresponding to the position of the rotary locking pin 19. Therefore, when the ventilation window is closed, after the first gusset plate 15 and the second gusset plate 16 are joined, the rotary locking pin 19 passes through the connecting hole and is rotated and locked, so that the first gusset plate 15 and the second gusset plate 16 are stably folded together.

[0030] In this embodiment, the shielding cover, frame, outer panel 10, and inner panel 11 are all made of aluminum material, and the first cutoff waveguide plate 2 and the second cutoff waveguide plate 5 are both made of aluminum alloy honeycomb panels, which helps to achieve lightweight cabin body. The metal wire ball 4 is preferably made of stainless steel metal wire ball to increase service life and reduce the impact of wind and rain erosion on the metal wire ball.

[0031] Figure 5Another shielding cover structure is shown. Figure 1 Compared to the shielding cover structure shown in FIG, the main difference lies in the following: the end of the lower inclined plate 3B is connected to the lower edge of the window frame 1. Specifically, the end of the lower inclined plate 3B contacts the uppermost edge of the lower window frame 1 (i.e., the upper edge of the opening frame 1B). In this case, the lower end of the first cutoff waveguide plate 2 also has an inclined surface. This allows rainwater that enters or splashes through the window frame during windy and rainy weather to flow naturally out of the window, preventing it from accumulating on the first cutoff waveguide plate 2 and the bottom of the shielding cover.

[0032] The present invention is not limited to the above-mentioned embodiments. On the basis of the technical solutions disclosed in the present invention, those skilled in the art can make some substitutions and modifications to some of the technical features therein according to the disclosed technical content without creative labor, and these substitutions and modifications are all within the protection scope of the present invention.

Claims

1. A high-shielding ventilation window structure, comprising a window frame, wherein a ventilation window is provided in the window frame, characterized in that: A first cutoff waveguide plate is provided on the inner side of the ventilation window, a shielding cover is connected to the inner side of the first cutoff waveguide plate, a sheet metal wire ball is filled in the shielding cover, a second cutoff waveguide plate is provided on the upper side of the shielding cover, an axial flow fan is provided on the upper side of the second cutoff waveguide plate, the apertures of the cutoff waveguide tubes on the first cutoff waveguide plate and the second cutoff waveguide plate are different and the radial surfaces are both hexagonal, the outer side of the shielding cover is connected to the first cutoff waveguide plate, the upper side of the shielding cover is connected to the second cutoff waveguide plate, longitudinal and transverse metal grid plates are provided in the shielding cover, the metal grid plates form a plurality of compartments in the shielding cover, the sheet metal wire ball is filled in each compartment, the thickness of the first cutoff waveguide plate and the second cutoff waveguide plate is not less than Seven times the aperture, the shielding cover includes an inner plate, a lower inclined plate connected to the lower end of the inner plate and side sealing plates connected on both sides of the inner plate and the lower inclined plate, the lower inclined plate is inclined downward from back to front and the end is connected to the window frame, an L-shaped fan seat plate is provided in the shielding cover, the horizontal edge of the L-shaped fan seat plate is welded and fixed to the side sealing plate and the inner plate, the upper end of the vertical edge is flush with the side sealing plate and the upper end of the inner plate, the second cutoff waveguide plate is inserted into the bottom of the L-shaped fan seat plate, the axial fan is fixed on the L-shaped fan seat plate, an oblique plug-in slot is provided on the outer side of the side sealing plate, and first positioning pins corresponding to the ends of the oblique plug-in slot are provided on both sides of the window frame, and the vertical edge of the L-shaped fan seat plate is detachably connected to the cabin wall.

2. The high shielding ventilation window structure according to claim 1, characterized in that: The end of the lower sloping plate is connected to the lower eave of the window frame.

3. The high shielding ventilation window structure according to claim 1, characterized in that: A hinge is provided at the upper end of the ventilation window, and the ventilation window is hinged to the window frame through the hinge. A first support angle plate and a second support angle plate are symmetrically provided on the inner side of the ventilation window. The first support angle plate and the second support angle plate both include a vertical connecting edge, a short horizontal edge connected to the upper end of the connecting edge, a long horizontal edge connected to the lower end of the connecting edge, and an L-shaped supporting edge connected between the short horizontal edge and the long horizontal edge. The connecting edge is hinged on the inner side of the ventilation window.

4. The high shielding ventilation window structure according to claim 3, characterized in that: Second positioning pins are also provided on both sides of the window frame, and positioning holes that cooperate with the second positioning pins are provided at the corners of the L-shaped support edge.

5. The high shielding ventilation window structure according to claim 3, characterized in that: A rotation locking pin is provided on the first support angle plate, and a connection hole is provided on the second support angle plate corresponding to the position of the rotation locking pin.

6. The high shielding ventilation window structure according to claim 1, characterized in that: The ventilation window includes a frame, an outer panel, an inner panel and a core panel. The main cross-section of the frame is H-shaped, including an outer long connecting surface, an inner short connecting surface, and a middle horizontal connecting surface connected between the outer long connecting surface and the inner short connecting surface. The upper end of the outer long connecting surface is connected to an upper horizontal connecting surface. The outer panel is fixed on the outside of the outer long connecting surface and the outer surface is flush with the upper horizontal connecting surface. The upper end of the inner short connecting surface is connected to a small horizontal connecting surface. The inner panel is fixed on the inside of the inner short connecting surface and the outer surface is flush with the small horizontal connecting surface. The C-shaped space formed by the upper horizontal connecting surface, the outer long connecting surface, the middle horizontal connecting surface and the small horizontal connecting surface is filled with a sealing strip, and the core panel is sandwiched between the outer panel and the inner panel.

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