CN212053249U - A assemble structure, shielding room and darkroom for shielding room - Google Patents
A assemble structure, shielding room and darkroom for shielding room Download PDFInfo
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- CN212053249U CN212053249U CN202020021397.3U CN202020021397U CN212053249U CN 212053249 U CN212053249 U CN 212053249U CN 202020021397 U CN202020021397 U CN 202020021397U CN 212053249 U CN212053249 U CN 212053249U
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Abstract
The utility model relates to a assemble structure, shielded cell and darkroom for shielded cell. The splicing structure comprises a first splicing piece and a second splicing piece, wherein a groove is formed in the edge of the first splicing piece, and a protruding part is formed in the edge of the second splicing piece; when the first splicing piece and the second splicing piece are spliced, the bulge part is placed in the groove, and a gap exists between the bulge part and the groove; the first splicing piece is a splicing strip, and the second splicing piece is a splicing panel; or the first splicing piece is a splicing panel, and the second splicing piece is a splicing strip; the splicing strips are provided with a pressing mechanism, and the pressing mechanism presses and limits the protruding parts in the grooves, so that the first splicing piece and the second splicing piece are stably connected into a whole; the shielding chamber is assembled by the assembling structure. The utility model discloses when promoting shielding effect, the operation of assembling of shielded cell and darkroom has been simplified.
Description
Technical Field
The utility model relates to a test technical field of communication trade, especially a assemble structure, shielded cell and darkroom for shielded cell.
Background
The shielding chamber is used for isolating external electromagnetic interference and ensuring normal work of indoor electronic and electrical equipment. Especially, in the measurement and test of electronic elements and electrical equipment, the electromagnetic shielding chamber (or microwave darkroom) is used for simulating an ideal electromagnetic environment, so that the accuracy of the detection result can be improved. The traditional antenna and terminal are tested in a microwave darkroom or a shielded room, and currently, 5G adopts a large-scale active antenna technology, and the radio frequency test of the antenna needs to be carried out in a microwave darkroom by using an OTA (over the air) test mode. The darkroom generally comprises a shielding room, wave-absorbing materials, a supporting device of the tested equipment arranged in the shielding room, an antenna bracket system and the like. Wherein, shielding housing and shield door have constituteed the shielding room, keep apart external electromagnetic interference, improve the test accuracy.
The assembly of the shielding chamber is divided into a welding type and an assembling type. The welding type shielding chamber is complex in construction process and long in time consumption, and is mainly used for large shielding dark chambers, such as shielding chambers with the length of 40 meters. For small and medium-sized shielding chambers, a split mounting structure is mostly adopted, such as a 3-meter dark chamber. At present, as shown in fig. 1, in the conventional splicing structure, a conductive shielding layer B is clamped between two shielding panels a, and then the two shielding panels are locked by bolts C, so that the conductive shielding layer is tightly clamped between the two shielding panels. The assembling structure has the following defects: (1) when the shielding panels are assembled, a plurality of bolts are required to be arranged from top to bottom along the splicing gap between the two shielding panels to lock the two shielding panels and clamp the conductive shielding layer, and when the bolts are installed, the shielding panels are ensured to be aligned without gaps, so that the construction requirement for bolt installation is high, the construction efficiency is low, the assembling speed of a shielding chamber is influenced, and if the bolts are not installed in place, butt joint gaps are easily generated, so that electromagnetic wave leakage is caused; (2) in the splicing structure shown in fig. 1, the path of electromagnetic wave leakage is a butt joint gap between two shielding panels, and the path is short and straight, and if the bolt is not installed in place, the electromagnetic wave and the electromagnetic wave are easy to leak, which seriously affects the shielding effect.
The invention patent with the patent number 201510925214.4 proposes another shielding shell assembly structure, wherein a first splicing unit and a second splicing unit adjacent to each other are spliced in a non-conducting manner, a loss layer covers the inner side of the splicing position, a shielding layer covers the outer side of the splicing position, the loss layer and the shielding layer are respectively pressed and covered on the splicing position by a non-ferromagnetic metal material plate on the inner side and the outer side, and then the non-ferromagnetic metal material plate is fastened on the splicing position of the first splicing unit and the second splicing unit in a riveting or bolt connection manner. The assembling structure has the following defects: (1) the path of electromagnetic wave leakage is a butt joint gap between the first splicing unit and the second splicing unit, the path is short and straight, and if a loss layer, a shielding layer and the like are not installed in place, the electromagnetic wave is easy to leak; (2) the shielding shell is very complex in assembly structure, multiple in accessories and complex in assembly, at least more than two persons are needed during assembly, the first splicing unit and the second splicing unit are both held by the persons, meanwhile, the persons are needed to attach a shielding layer and a loss layer, bolts are installed, and the like, so that the labor is consumed, and the construction efficiency is low; (3) this structure is assembled to shielding shell is because of adopting rivet and glue film etc. and the rivet has passed first splice unit and second splice unit, causes the leakage easily, and reuse nature is poor, is unfavorable for follow-up dismantlement and maintenance.
Disclosure of Invention
The utility model provides a assemble structure, shielding room and darkroom for shielding room when promoting the shielding effect, has simplified the operation of assembling of shielding room and darkroom.
In order to solve the technical problem, the utility model firstly provides an assembly structure for a shielding chamber, which comprises a first assembly piece and a second assembly piece, wherein a groove is arranged at the edge of the first assembly piece, and a bulge is arranged at the edge of the second assembly piece; when the first splicing piece and the second splicing piece are spliced, the bulge part is placed in the groove, and a gap exists between the bulge part and the groove; wherein,
the first splicing piece is a splicing strip, and the second splicing piece is a splicing panel; or,
the first splicing piece is a splicing panel, and the second splicing piece is a splicing strip;
and a pressing mechanism is arranged on the splicing strips and used for pressing and limiting the protruding parts in the grooves, so that the first splicing piece and the second splicing piece are stably connected into a whole.
As a preferred embodiment, the groove is a U-shaped groove with a planar bottom surface, the protrusion is a flanged portion extending from the edge of the first splicing member or the second splicing member, the flanged portion has three surfaces, and the three surfaces correspond to the three surfaces inside the U-shaped groove respectively during splicing.
As a preferred embodiment, the groove is arranged at the edge of the splicing panel, and the bulge is arranged at the side surface of the splicing strip; the groove is formed by bending the splicing panel body; the splicing strip body is provided with a press mounting groove parallel to one side surface of the splicing strip, and the part between the press mounting groove and the side surface of the splicing strip is used as a convex part matched with the groove; when assembling, the side wall of the outermost side of the groove of the splicing panel is inserted in the press-mounting groove.
As a preferred embodiment, at least one conductive shielding material is placed in the gap between the convex part and the groove; under the action of the pressing mechanism, the conductive shielding material is tightly pressed between the protruding part and the groove.
In a preferred embodiment, the conductive foam is placed or not placed in the gap at the bottom of the groove, and the conductive reeds are placed in the gaps at the two sides of the groove.
In a preferred embodiment, the pressing device is a rotatable press piece or a press buckle.
The utility model also provides a shielding room is assembled by aforementioned structure of assembling and is come.
As a preferred embodiment, the splicing strips are positioned at the corners of the shielding chamber, and a certain splicing angle is formed between two splicing panels connected by the splicing strips; the splicing strip is provided with two rows of pressing devices in the extension direction, the left side and the right side or the two splicing panels on the upper side and the lower side are respectively limited with the splicing strip in a press-fitting mode, the end portion of the splicing strip is provided with an assembly angle, the assembly angle and the splicing strip can be assembled in a pluggable mode, and the assembly angle is hollow.
As a preferred embodiment, the shielding room further comprises a splicing strip positioned on the plane wall body of the shielding room, and the splicing strip splices two splicing panels positioned on the left side and the right side or the upper side and the lower side of the splicing strip together straightly; two rows of pressing devices are arranged in the extension direction of the splicing strips, and the two splicing panels on the left side or the right side or the upper side and the lower side are respectively pressed and limited together with the splicing strips.
The utility model discloses still provide a darkroom, including aforementioned shielded cell.
Compared with the prior art, the utility model, it is showing the advantage and lies in:
(1) the utility model discloses in, through the cooperation of bellying and recess, the gap between bellying and the recess is nonlinear line type, and electromagnetic wave leakage path also is nonlinear line type to electromagnetic wave leakage path has been prolonged, and electromagnetic wave signal need be through multiple reflection in leakage path, has hindered the electromagnetic wave propagation, thereby has hindered the electromagnetic wave and has leaked.
(2) The utility model discloses fill in the gap between bellying and recess, placed one or more electrically conductive shielding material, also set up a heavy or multiple obstacle material that hinders the electromagnetic wave propagation on the leakage path of electromagnetic wave nonlinear type promptly to further hindered the electromagnetic wave and propagated along the concatenation gap, and increased the conductive continuity between the splice, improved the shielding property of shielded room.
(3) This structure of assembling is the modularization, through bellying, recess and the cooperation that compresses tightly spacing part, need not accessories such as riveting or bolt and fastens, has realized building of cordwood ization, repeatedly usable, and it is convenient to dismantle and assemble, and the efficiency of construction is high.
For other advantages not mentioned, reference will be made in the detailed description to the claims.
Drawings
Fig. 1 is a schematic diagram of a splicing structure of a shielding chamber in the prior art.
Fig. 2 is the structure schematic diagram of the middle splicing strip on the plane wall of the shielding room.
Fig. 3 is a schematic structural diagram of the middle splicing strip of the present invention when it is located at the corner of the shielding room.
Fig. 4 is the utility model discloses well closing device pressure equipment concatenation panel's schematic diagram.
Fig. 5 is a schematic view of the middle protruding portion of the present invention disposed on the splicing strip.
Fig. 6 is the schematic diagram of the middle groove of the present invention disposed on the splicing panel.
Fig. 7 is a schematic diagram of the protrusion of fig. 5 being joined to the groove of fig. 6.
Fig. 8 is a schematic view of the shielding chamber frame structure when the middle splicing strip of the present invention is located on the planar wall body and the corner.
Fig. 9 is a schematic structural view of the shielding chamber frame when the splicing strip is only located at the corner of the present invention.
Fig. 10 is a schematic view of the installation of the end of the splice bar at the corner according to an embodiment of the present invention.
Fig. 11 is a schematic view of the set-up angle shown in fig. 10.
Fig. 12 is a schematic view of the installation of the end of the splice bar at the corner according to another embodiment of the present invention.
Fig. 13 is a schematic view of the whole shielding chamber of the present invention.
Reference numerals: splicing strip 1, splicing panel 2, protruding portion (flanging portion) 3, recess (U type groove) 4, closing device (briquetting) 5, electric foam 6, electrically conductive reed 7, assembly angle 8, pressure equipment groove 9, splicing panel recess outside lateral wall 10.
Detailed Description
It is easily understood that, according to the technical solution of the present invention, those skilled in the art can imagine various embodiments of the present invention without changing the essential spirit of the present invention. Therefore, the following detailed description and the accompanying drawings are merely illustrative of the technical solutions of the present invention, and should not be construed as limiting or restricting the technical solutions of the present invention in its entirety or as a limitation of the present invention.
Example 1
As shown in fig. 2, as an embodiment, the assembly structure for a shield room includes a first splicing member 1 and a second splicing member 2, the first splicing member is provided with a groove 4 at an edge thereof, and the second splicing member is provided with a protrusion 3 at an edge thereof. When splicing, the bulge 3 is placed in the groove 4, a nonlinear gap for electromagnetic wave leakage exists between the bulge and the groove, but the electromagnetic wave leakage path is changed from a linear electromagnetic leakage path in the prior art to a nonlinear leakage path, and the electromagnetic wave needs to be reflected for multiple times in the nonlinear leakage path, so that the electromagnetic leakage path is prolonged. Meanwhile, the protruding portion 3 and the groove 4 are installed in a matched mode, the first splicing piece and the second splicing piece are connected in a clamped mode, and therefore the component assembling function is achieved.
In this embodiment, the first splicing member is a splicing strip 1, and the second splicing member is a splicing panel 2; or the first splicing piece is the splicing panel 2, and the second splicing piece is the splicing strip 1. That is, as shown in fig. 2 or 3, the projection 3 may be provided on the splice panel 2, and accordingly, the groove 4 is provided on the splice bar 1. Alternatively, as shown in fig. 5, 6 and 7, the projection 3 is provided on the splice bar 1 and the groove 4 is provided on the splice panel 2.
Example 2
As shown in fig. 2 or fig. 3, on the basis of embodiment 1, as a preferable scheme of the groove, the groove 4 is a U-shaped groove, and the bottom surface of the U-shaped groove is a plane. As a preferred scheme of the protruding portion, the protruding portion 3 is a flanged portion extending from the edge of the first splicing member or the second splicing member, and the flanged portion has three surfaces corresponding to three surfaces of the inner side of the U-shaped groove. During splicing, the flanging part is placed in the U-shaped groove, and three surfaces of the flanging part are in one-to-one correspondence with three surfaces on the inner side of the U-shaped groove respectively.
It should be noted that, in addition to embodiment 2, the protrusion is not necessarily a flanging portion having three surfaces, and the groove is not necessarily a U-shaped groove, as long as the protrusions can be assembled by mutually snapping, and the gap between the protrusions and the groove is a bending path rather than a linear path, for example, the protrusion is a convex V-shaped structure, and the groove is a V-shaped groove.
Example 3
In addition to embodiments 1 and 2, as shown in fig. 2, 3 and 7, one or more conductive shielding materials are disposed on the electromagnetic wave leakage path to prevent the electromagnetic wave from leaking along the gap between the protrusion 3 and the groove 4. For example, on the basis of embodiment 2, the foam 6 is placed at the bottom of the U-shaped groove, and the conductive springs 7 are respectively placed at the two side surfaces in the U-shaped groove. The electric foam 6 and the conductive reed 7 both belong to conductive shielding materials and are used for electrically connecting the flanging part with the U-shaped groove, so that the spliced panel and the spliced strip are continuously conductive, the overall shielding property is improved, electromagnetic waves are prevented from being propagated along a spliced gap, and the shielding property is improved.
Example 4
On the basis of the embodiment 1, the embodiment 2 and the embodiment 3, further, the pressing device 5 is further arranged on the first splicing member and/or the second splicing member, and after the protruding part is placed in the groove, the protruding part is limited in the groove by the pressing device 5 and does not fall off, so that stable splicing is realized. For example, U-shaped grooves 4 are provided on both sides of the splice bar 1, and a rotatable press block or a press buckle is provided on the splice bar 1 as a pressing device 5. After turn-ups portion 3 was put into U type groove 4, rotatory briquetting 5 lets briquetting 5 compress tightly turn-ups portion 3 and spacing in U type groove 4, makes concatenation strip and concatenation panel assemble as an organic whole on the one hand, and on the other hand, the briquetting compresses tightly the shielding panel so that turn-ups portion and U type groove extrude electrically conductive shielding layer mutually, guarantees turn-ups portion and U type groove and electrically conductive shielding material fully contact, avoids leaving the gap between turn-ups portion and U type groove and the electrically conductive shielding material, increases the electrically conductive continuity.
Example 5
In the embodiment shown in fig. 2 and 3, the grooves 4 are provided on both sides of the splice bar 1 and the protrusions 3 are provided on the edge of the splice panel 2. As an alternative to the embodiment shown in fig. 2 and 3, the groove 4 is provided at the edge of the splice panel 2 and the protrusion 3 is provided at the side of the splice bar, as shown in fig. 5, 6 and 7.
In this embodiment, the protrusion 3 and the groove 4 may still be the flanging part and the U-shaped groove shown in fig. 2 and 3. However, as an alternative, as shown in fig. 5, 6 and 7, the groove 4 may be formed by bending the body of the splice panel 2, and the protrusion 3 is no longer a flanging extending from the edge of the splice bar, and the protrusion 3 is a press-fitting groove 9 provided on the body of the splice bar and parallel to one side of the splice bar, and the portion between the press-fitting groove 9 and the side of the splice bar is used as the protrusion 3 engaged with the groove. During assembly, the side wall 10 at the outermost side of the groove of the spliced panel is inserted in the press-fitting groove 9. Similarly, the conductive reeds 7 are respectively arranged at the positions of two side surfaces in the groove 4.
Example 6
As an embodiment, the assembled structure for the shield room includes a spliced panel 2, a spliced strip 1, a conductive shield layer, and a rotatable press block 5. The splicing strip 1 is used for connecting and fixing adjacent splicing panels 2, U-shaped grooves 4 are formed in two sides of the splicing strip 1, and the edge of each shielding panel 2 is provided with a flanging portion 3. The flanging part 3 is matched with the U-shaped groove 4, and specifically, the flanging part extending from the edge of the shielding panel 2 is provided with three surfaces which correspond to the three surfaces on the inner side of the U-shaped groove 4 respectively. During splicing, the flanging part 3 is placed in the U-shaped groove 4 and is assembled in a clearance mode, and three surfaces of the flanging part correspond to three surfaces of the inner side of the U-shaped groove one by one respectively. The bottom surface of the U-shaped groove is provided with a foam 6, and the two side surfaces in the U-shaped groove are respectively provided with a conductive reed 7.
After the flanging part 3 is placed in the U-shaped groove 4, the flanging part 3 is limited and pressed in the U-shaped groove 4 by the pressing block 5 and does not fall off, and the shielding panel 2 is pressed so that the flanging part and the U-shaped groove mutually extrude the conductive shielding material to be fully contacted with the conductive shielding material without a gap.
Example 7
This embodiment shows a shielded room assembled from any of the above-described constructions of embodiments 1-6. As shown in fig. 3 or fig. 7, the shielding room is formed by splicing the splicing panel 2 and the splicing strip 1, but the splicing strip 1 is located at a corner of the shielding room, that is, the splicing strip 1 is located at a corner of a side wall surface of the shielding room, or at a corner of a top surface and a side wall, or at a corner of a ground surface and a side wall of the shielding room. At this time, a certain splicing angle is formed between the two splicing panels 2 connected by the splicing strip 1, and the splicing angle can be an acute angle, a right angle or an obtuse angle. At this time, the opening directions of the U-shaped grooves on the two sides of the splicing strip 2 are not in the same plane. At this time, the splicing strip 1 can also play a role of a supporting frame for shielding the chamber at the corner.
Typically, the splice angle is a right angle, i.e., the shielding cage is a square or rectangular structure.
Fig. 10 and 11 show an embodiment of splicing bars located at corners of a shield room using mounting pins. In the present embodiment, the splicing strip used in the corner of the shielding chamber is shown in fig. 3, the grooves 4 are provided on both sides of the splicing strip 1, and the protrusions 3 are provided on the edge of the splicing panel 2. At the moment, the end part of the splicing strip is provided with an assembly angle 8, the assembly angle 8 and the splicing strip can be assembled in a pluggable mode, and the assembly angle 8 is hollow.
Example 8
The present embodiment shows a shielding chamber, which is formed by splicing a splice panel 2 and a splice bar 1, as shown in fig. 2 and 4, based on the splicing structure described in the foregoing embodiment 7. The splicing strip 1 is positioned on a plane wall body of the shielding room, and the splicing strip 1 splices two splicing panels 2 positioned on the left side and the right side or the upper side and the lower side together straightly. At this time, the splicing strips 1 can also play a role of a supporting frame of the shielding room on the plane wall body. In this embodiment, the both sides of concatenation strip 1 all are provided with U type groove, and the turn-ups part of two concatenation panels 2 is installed respectively in the U type groove that corresponds. Two rows of pressing blocks are arranged in the extension direction of the splicing strips, and the flanging parts of the two splicing panels are respectively pressed in the corresponding U-shaped grooves.
Two ends of the splicing strips on the plane wall of the shielding room are inserted into the horizontally placed splicing strips, so that splicing assembly is realized.
Example 9
Unlike example 8, example 9 provides another example of splicing the strips on the corners of the shield room using the mounting pins as shown in fig. 12. In the present embodiment, the splicing strips used at the corners of the shielding chamber are shown in fig. 5, and the splicing relationship between the splicing strips and the splicing panels is shown in fig. 7. The groove 4 is arranged at the edge of the splicing panel 2, and the bulge 3 is arranged on the side surface of the splicing strip. At this time, an assembly angle as shown in fig. 12 is provided at the end of the splice bar, the assembly angle is assembled with the splice bar in a pluggable manner, and the assembly angle is hollow.
The structure of assembling for the modularization, through bellying, recess and the cooperation that compresses tightly spacing part, need not accessories such as riveting or bolt and fasten, realized buildding of cordwood ization, repeatedly usable dismantles and assembles the convenience, the efficiency of construction is high.
The darkroom generally comprises a shielding room, wave-absorbing materials, a supporting device of the tested equipment arranged in the shielding room, an antenna bracket system and the like. The utility model discloses in, the darkroom adopts above-mentioned shielded cell structure, keeps apart external electromagnetic interference more effectively, improves the test accuracy degree, and the equipment is convenient, and the efficiency of construction is high.
The foregoing is a more detailed description of the invention in connection with specific/preferred embodiments and it is not intended to limit the practice of the invention to those descriptions. For those skilled in the art to which the invention pertains, a plurality of alternatives or modifications can be made to the described embodiments without departing from the concept of the invention, and these alternatives or modifications should be considered as belonging to the protection scope of the invention.
Claims (10)
1. The splicing structure for the shielding chamber is characterized by comprising a first splicing piece and a second splicing piece, wherein a groove is formed in the edge of the first splicing piece, and a protruding part is formed in the edge of the second splicing piece; when the first splicing piece and the second splicing piece are spliced, the bulge part is placed in the groove, and a gap exists between the bulge part and the groove; wherein,
the first splicing piece is a splicing strip, and the second splicing piece is a splicing panel; or,
the first splicing piece is a splicing panel, and the second splicing piece is a splicing strip;
and a pressing mechanism is arranged on the splicing strips and used for pressing and limiting the protruding parts in the grooves, so that the first splicing piece and the second splicing piece are stably connected into a whole.
2. The splicing structure of claim 1, wherein the groove is a U-shaped groove with a planar bottom surface, the protrusion is a flange extending from the edge of the first splicing member or the second splicing member, the flange has three surfaces, and the three surfaces correspond to three surfaces inside the U-shaped groove respectively during splicing.
3. The construction assembly structure according to claim 1, wherein the groove is provided at an edge of the panel assembly, and the protrusion is provided at a side of the strip assembly; the groove is formed by bending the splicing panel body; the splicing strip body is provided with a press mounting groove parallel to one side surface of the splicing strip, and the part between the press mounting groove and the side surface of the splicing strip is used as a convex part matched with the groove; when assembling, the side wall of the outermost side of the groove of the splicing panel is inserted in the press-mounting groove.
4. A modular construction as claimed in any one of claims 1, 2 or 3, wherein at least one conductive shielding material is located in a gap between the projection and the recess; under the action of the pressing mechanism, the conductive shielding material is tightly pressed between the protruding part and the groove.
5. The fabricated structure of claim 4, wherein conductive foam is placed or not placed in the gap at the bottom of the groove, and conductive reeds are placed in the gaps at the two sides of the groove.
6. A building structure as claimed in claim 1, wherein the compression means is a rotatable press block or a compression hasp.
7. A shielded room, comprising the assembled structure of any one of claims 1 to 6.
8. The screened room of claim 7, wherein the splicing strip is positioned at the corner of the screened room, and a certain splicing angle is formed between two splicing panels connected by the splicing strip; the splicing strip is provided with two rows of pressing devices in the extension direction, the left side and the right side or the two splicing panels on the upper side and the lower side are respectively limited with the splicing strip in a press-fitting mode, the end portion of the splicing strip is provided with an assembly angle, the assembly angle and the splicing strip can be assembled in a pluggable mode, and the assembly angle is hollow.
9. The shielded room of claim 8 further comprising a splice bar on the planar wall of the shielded room, the splice bar splicing together two splice panels on the left and right sides or the top and bottom sides of the splice bar; two rows of pressing devices are arranged in the extension direction of the splicing strips, and the two splicing panels on the left side or the right side or the upper side and the lower side are respectively pressed and limited together with the splicing strips.
10. A darkroom, wherein the shielded room of any one of claims 7 to 9 is used.
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Address after: Room 312, Building B, Xingzhi Science and Technology Park, No. 6 Xingzhi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province, 210038 Patentee after: Nanjing Jiexi Technology Co.,Ltd. Country or region after: China Address before: No. 278, Zhonghua Road, Qinhuai District, Nanjing, Jiangsu Patentee before: NANJING JIEXI TECHNOLOGY Co.,Ltd. Country or region before: China |