CN112014652A - Compact range testing equipment - Google Patents
Compact range testing equipment Download PDFInfo
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- CN112014652A CN112014652A CN202011151853.7A CN202011151853A CN112014652A CN 112014652 A CN112014652 A CN 112014652A CN 202011151853 A CN202011151853 A CN 202011151853A CN 112014652 A CN112014652 A CN 112014652A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/08—Measuring electromagnetic field characteristics
- G01R29/10—Radiation diagrams of antennas
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides compact range testing equipment, which relates to the technical field of antenna testing and comprises an installation box body, an antenna bearing structure, a feed source, a reflecting surface and an external skin, wherein the installation box body comprises a chassis, a bottom frame, a middle frame and a top frame which are arranged in a split mode. Through the installation box that the components of a whole that can function independently set up, make bottom frame detachably set up on the chassis, middle part frame detachably sets up on bottom frame, top frame detachably sets up on middle part frame, antenna bearing structure sets up on the chassis, the feed sets up the inboard at bottom frame or middle part frame, the plane of reflection sets up top frame's inboard, when equipment is transported, can pull down each frame of installing the box and transport, assemble again after reacing the place, therefore, the high-speed wireless terminal box is very convenient, compact yard test equipment's adaptability has been improved greatly.
Description
Technical Field
The invention relates to the technical field of antenna testing, in particular to compact range testing equipment.
Background
In a compact range, a feed source generally emits spherical waves, the spherical waves are reflected by a reflecting surface to form plane waves, and a dead zone generally refers to a region with good index characteristics such as amplitude, phase and cross polarization of the formed plane waves, that is, the compact range method can simulate the good plane waves in a small field, can be directly used for electromagnetic testing without mathematical conversion, and gradually becomes a mainstream test method for 5G antenna testing.
At present, miniature compact yards at home and abroad are of an integrated structure, and test pieces are assembled and disassembled manually. The miniature compact range of integral type structure is difficult to use the elevator transportation, can only place in special place, and is inconvenient transports between each place.
Disclosure of Invention
The invention solves the problem of how to facilitate the transportation among various fields and improve the adaptability of the fields.
In order to solve the problems, the invention adopts the following technical scheme.
The embodiment of the invention provides compact range testing equipment which comprises an installation box body, an antenna bearing structure, a feed source, a reflecting surface and an external skin, wherein the installation box body comprises a chassis, a bottom frame, a middle frame and a top frame which are arranged in a split mode, the bottom frame is detachably arranged on the chassis, the middle frame is detachably arranged on the bottom frame, the top frame is detachably arranged on the middle frame, the antenna bearing structure is arranged on the chassis, the feed source is arranged on the inner side of the bottom frame or the middle frame, the reflecting surface is arranged on the inner side of the top frame, and the external skin is respectively coated outside the chassis, the bottom frame, the middle frame and the top frame.
Further, the bottom of bottom frame sets up the mounting disc, the mounting disc with the connection can be dismantled on the chassis, the top of bottom frame is provided with first mounting flange, the bottom of middle part frame is provided with second mounting flange, first mounting flange with the connection can be dismantled to second mounting flange, the top of middle part frame is provided with third mounting flange, the top frame with third mounting flange can dismantle the connection.
Further, the chassis comprises an enclosing frame, a mounting layer frame and a bearing layer frame, the mounting layer frame is arranged in the enclosing frame and used for bearing the mounting disc and the antenna bearing structure, and the bearing layer frame is arranged at the bottom of the mounting layer frame and provided with a plurality of bearing grooves.
Further, the antenna bearing structure comprises a mounting seat, a testing rotary table and a testing fixture for mounting the antenna to be tested, wherein the mounting seat is detachably arranged on the base plate, the testing rotary table is rotatably arranged on the mounting seat, and the testing fixture is connected with the testing rotary table and used for being driven by the testing rotary table to rotate relative to the mounting seat.
Furthermore, a lifting driving piece is further arranged on the test rotary table and is in transmission connection with the test fixture and used for lifting or descending the test fixture.
Further, exterior skin is close to the loading opening has still been seted up to the position of bottom frame, the bottom frame is kept away from one side of feed still is provided with automatically-controlled door device, automatically-controlled door device is including being used for the shutoff the door body, horizontal driving spare and the vertical driving spare of loading opening, horizontal driving spare sets up on the bottom frame, and with door body transmission is connected, is used for promoting the door body moves along the horizontal direction, vertical driving spare sets up on the bottom frame, and with door body transmission is connected, is used for promoting the door body moves along vertical direction.
Furthermore, the door body is provided with a slide rail, the horizontal driving part is provided with a slide groove matched with the slide rail, and the slide rail is arranged along the vertical direction, so that the door body can be driven by the vertical driving part to move along the vertical direction relative to the horizontal driving part.
Furthermore, wave-absorbing materials are laid on the inner side surface of the outer skin and the inner side surface of the door body.
Further, exterior skin includes top covering, upper skin, lower floor's covering and bottom covering, the top covering sets up the top frame outside, the upper skin sets up the middle part frame outside, lower floor's covering sets up in the bottom frame outside, the bottom covering sets up on the chassis, the load port is seted up on a lateral wall of lower floor's covering, just the detection opening has still been seted up on another lateral wall of lower floor's covering, it is provided with and is used for opening or closing to detect open-ended detection door to detect the opening part.
Furthermore, gaps between the top skin and the upper skin and between the upper skin and the lower skin are filled with a reticular wave-absorbing structure.
The embodiment of the invention has the beneficial effects that:
the invention provides a compact range testing system, which is characterized in that a bottom frame is detachably arranged on a chassis through a mounting box body which is arranged in a split mode, a middle frame is detachably arranged on the bottom frame, a top frame is detachably arranged on the middle frame, an antenna bearing structure is arranged on the chassis, a feed source is arranged on the inner side of the bottom frame or the middle frame, and a reflecting surface is arranged on the inner side of the top frame.
Drawings
FIG. 1 is a schematic diagram of an external structure of a compact range testing apparatus provided in the present invention;
FIG. 2 is a schematic diagram of the internal structure of the compact range testing apparatus provided by the present invention;
FIG. 3 is an enlarged partial view of III of FIG. 2;
FIG. 4 is a partially enlarged view of IV in FIG. 2;
FIG. 5 is a partially enlarged view of V in FIG. 2;
fig. 6 is an overall schematic view of the antenna carrier structure of fig. 2;
fig. 7 is a partial schematic view of the antenna carrier structure of fig. 2;
FIG. 8 is a schematic diagram of the compact range testing apparatus provided by the present invention in use with a robotic arm;
fig. 9 is a schematic structural view of the automatic door apparatus of fig. 8;
FIG. 10 is a schematic view of a partial structure of a compact range testing apparatus provided in the present invention.
Description of reference numerals:
100-compact range test equipment; 110-mounting the box body; 111-a chassis; 111 a-enclosure; 111 b-mounting a shelf; 111 c-a carrier shelf; 111 d-carrying grooves; 113-a bottom frame; 113 a-mounting plate; 113 b-a first mounting flange; 115-a middle frame; 115 a-a second mounting flange; 115 b-a third mounting flange; 117-top frame; 130-an antenna carrying structure; 131-a mounting seat; 133-a test turret; 135-a test fixture; 137-lifting the drive; 139-rotating the drive member; 150-a feed source; 170-a reflecting surface; 180-automatic door device; 181-a door body; 183-horizontal drive; 185-vertical drive; 187-a slide rail; 189-chute; 190-outer skin; 190 a-a wave-absorbing material; 191-top skin; 193-upper skin; 195-lower skin; 197-bottom skin; 200-mechanical arm.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
As disclosed in the background art, the existing miniature compact is usually of an integrated structure, that is, an integrated frame is adopted, the whole compact structure needs to be transported together in the transportation process, and the compact structure is difficult to transport by using an elevator or a small-sized vehicle due to non-detachability, so that the compact structure can only be placed in a special place and is inconvenient to transport among various places. In addition, current miniature compact field adopts artifical installation, dismantles the antenna under test usually, and when the measuring is great, the dismouting process is complicated and too consuming time, influences efficiency of software testing, and artifical dismouting still can influence the positioning accuracy who is surveyed antenna, installation bearing structure, influences efficiency of software testing. In addition, for the structure of the feeding and discharging position, the wave-absorbing material is not used for covering in the prior art, the test effect can be greatly influenced, and the electromagnetic compatibility and the electromagnetic shielding effect of the whole structure can hardly meet the requirements.
The present invention provides a compact range testing apparatus, which effectively solves the above problems, and will be described in detail below.
First embodiment
With reference to fig. 1 to 5, this embodiment provides a compact range test equipment 100, adopts the removable frame of components of a whole that can function independently, conveniently transports between each place after pulling down, has improved its adaptability, can automatic dismouting antenna that awaits measuring simultaneously, and the dismouting precision is high and the dismouting is efficient, and in addition, electromagnetic shield is effectual, has guaranteed the accuracy of test result.
The compact range testing device 100 provided by the embodiment comprises a mounting box body 110, an antenna bearing structure 130, a feed source 150, a reflecting surface 170 and an external skin 190, wherein the mounting box body 110 comprises a chassis 111, a bottom frame 113, a middle frame 115 and a top frame 117 which are separately arranged, the bottom frame 113 is detachably arranged on the chassis 111, the middle frame 115 is detachably arranged on the bottom frame 113, the top frame 117 is detachably arranged on the middle frame 115, the antenna bearing structure 130 is arranged on the chassis 111, the feed source 150 is arranged on the inner side of the bottom frame 113 or the middle frame 115, the reflecting surface 170 is arranged on the inner side of the top frame 117, and the external skin 190 is respectively coated outside the chassis 111, the bottom frame 113, the middle frame 115 and the top frame 117.
In this embodiment, the whole installation box 110 is rectangular, the chassis 111 and the top frame 117 are arranged oppositely and in parallel, the bottom frame 113 and the middle frame 115 are sequentially overlapped between the top frame 117 and the chassis 111, wherein the chassis 111 and the top frame 117 are rectangular, when transportation is needed, the top frame 117, the middle frame 115, the bottom frame 113 and the chassis 111 can be detached respectively for transportation, the problems that the existing compact yard is not easy to carry and enter the yard for installation are solved, and the parts can be transported by an elevator without being limited by a construction site.
The bottom end of the bottom frame 113 is provided with a mounting disc 113a, the mounting disc 113a is detachably connected with the base disc 111, the top of the bottom frame 113 is provided with a first mounting flange 113b, the bottom of the middle frame 115 is provided with a second mounting flange 115a, the first mounting flange 113b is detachably connected with the second mounting flange 115a, the top of the middle frame 115 is provided with a third mounting flange 115b, and the top frame 117 is detachably connected with the third mounting flange 115 b. Specifically, the mounting plate 113a is provided with screw holes and fixed to the chassis 111 by screws, so that the bottom frame 113 is fixed to the chassis 111, and the bottom frame 113 is rectangular and is distributed at four corners of the chassis 111. And the first mounting flange 113b and the second mounting flange 115a are respectively and correspondingly provided with a screw hole, and the first mounting flange 113b and the second mounting flange 115a are fixed together through bolts, so that the middle frame 115 and the bottom frame 113 are fixed together. The middle frame 115 is also rectangular and distributed on the bottom frame 113 along four corners, and the inner space of the middle frame 115 and the inner space of the bottom frame 113 are used for forming the main body part of the darkroom, and the antenna bearing structure 130 and the feed source 150 are both arranged in the inner space of the bottom frame 113. The third flange is also provided with screw holes, so that the top frame 117 is fixed on the third flange through screws or bolts, and the four corners of the top frame 117 are respectively fixed with the four third flanges at the top of the middle frame 115.
In this embodiment, the feed 150 is also bolted to the inside of the bottom frame 113, and the reflective surface 170 is fastened to the inside of the top frame 117 by a mounting plate and is centered on the top wall of the entire dark room. The arrangement positions of the feed source 150, the antenna bearing structure 130 and the reflecting surface 170 are proper, the reflecting surface 170 is fixed in the middle of the top frame 117 through a mounting back frame, the reflecting surface 170 is located in the middle of the top surface, the feed source 150 is placed at the focus of the reflecting surface 170, the antenna bearing structure 130 is arranged opposite to the feed source 150, and the quiet zone symmetry is guaranteed. With regard to the principle and arrangement of the compact, reference is made to the compact of the prior art and no particular limitation is made here.
The chassis 111 includes a surrounding frame 111a, a mounting layer 111b and a bearing layer 111c, the mounting layer 111b is disposed in the surrounding frame 111a for bearing the mounting plate 113a and the antenna bearing structure 130, and the bearing layer 111c is disposed at the bottom of the mounting layer 111b and has a plurality of bearing grooves 111 d. Specifically, installation layer frame 111b and bearing layer frame 111c overlap the setting, divide into two-layerly, and the upper strata is installation layer frame 111b, and processing has the screw, conveniently with mounting disc 113a and antenna bearing structure 130 fixed connection, and the lower floor is bearing layer frame 111c, convenient to use fork truck transport for it also has whole transport capacity.
In this embodiment, installation layer frame 111b adopts the channel-section steel to constitute to screw hole is processed at the upper portion, and a plurality of channel-sections are fixed into a whole by enclosing frame 111a, and bearing layer frame 111c adopts rectangular steel to constitute, and rectangular steel and channel-section steel welding are in the same place, and rectangular steel sets up for the interval to form and bear recess 111d, when whole transportation, make fork truck's yoke can stretch into and bear fixed effect about realizing in the recess 111 d.
It should be noted that the bottom frame 113, the middle frame 115, and the top frame 117 in this embodiment are also made of steel, and are formed by overlapping channel steel and rectangular steel, so as to reduce weight and ensure structural strength.
With reference to fig. 6 to 10, the antenna bearing structure 130 includes a mounting seat 131, a testing turntable 133, and a testing fixture 135 for mounting the antenna to be tested, the mounting seat 131 is detachably disposed on the chassis 111, the testing turntable 133 is rotatably disposed on the mounting seat 131, and the testing fixture 135 is connected to the testing turntable 133 and is driven by the testing turntable 133 to rotate relative to the mounting seat 131.
In this embodiment, the bottom of the mounting seat 131 is provided with a screw hole and fixed on the chassis 111 by a bolt or a screw, specifically, the height of the mounting seat 131 is 650mm and fixed on the mounting shelf 111b, and the mounting seat 131 is fixed on the side far away from the feed source 150. The testing fixture 135 is movably connected to the testing turntable 133, and is driven by the testing turntable 133 to rotate relative to the mounting base 131. Specifically, the rotation angle of the testing turntable 133 is 180 degrees, that is, the testing fixture 135 can be driven by the testing turntable 133 to rotate 180 degrees, and when the testing fixture rotates to the inner side, the antenna to be tested on the testing fixture 135 is located below the reflecting surface 170, so as to complete the test; when the antenna to be tested on the test fixture 135 is turned to the outside, the antenna to be tested can be extended outwards, and the antenna to be tested can be conveniently disassembled and assembled.
In this embodiment, the testing fixture 135 is a pneumatic fixture, which can realize the positioning and clamping of the antenna to be tested and the fast communication of the cable. Replace traditional screw thread mounting fixture through air jig, can improve the dismouting efficiency by a wide margin, reduce the installation time of being surveyed the antenna. In addition, the antenna to be measured is installed on a sliding platform formed by processing non-metallic materials (such as blackjack wood with strength and electrical property meeting requirements), when the antenna to be measured needs to be replaced, the antenna to be measured and the sliding platform are taken out and sent together, and the sliding platform is clamped and fixed through pneumatic clamps installed on two sides. Meanwhile, the plug cable is connected with the connector required by control and power supply by using a contact type connector (such as a magnetic connector, a socket and the like), the cable of the antenna to be tested is connected with the interface on the sliding platform outside the test area, then the cable and the sliding platform are pushed into the test area, and the two parts of connectors are automatically butted and communicated. With regard to the structure and principle of the automatic plug-in connector and the structure and principle of the pneumatic clamp, reference may be made to the related description in the prior art, and redundant description is not repeated here.
In this embodiment, the test turret 133 is further provided with a lifting driving member 137, and the lifting driving member 137 is in transmission connection with the test fixture 135 and is used for lifting or lowering the test fixture 135. Specifically, promote driving piece 137 for driving actuating cylinder, the piston rod that drives actuating cylinder sets up along vertical direction, cylinder body and test fixture 135 fixed connection to drive test fixture 135 up-and-down motion through driving actuating cylinder. Meanwhile, a slide bar structure arranged in the vertical direction is further arranged on the test turntable 133, the test fixture 135 is connected with the slide bar structure and moves up and down along the slide bar structure under the driving of the driving cylinder, and the slide bar structure plays a role in auxiliary limiting. It should be noted that, other driving schemes can be adopted for the lifting driving element 137 here, for example, the up-and-down driving is realized by a motor in combination with a rack and pinion, or the up-and-down driving is realized by an electric push rod, and the up-and-down driving manner of the test fixture 135 is not limited in detail here.
In this embodiment, the testing turntable 133 is further provided with a rotating driving member 139, the testing turntable 133 is rotatably disposed on the top of the mounting seat 131 through a turntable, and the rotating driving member 139 is used for driving the testing turntable 133 to move relative to the mounting seat 131. Specifically, the rotary driving member 139 is a stepping motor, which can directly drive the test turntable 133 to rotate within a range of 180 degrees, and of course, the rotary driving member 139 may also be another type of driving member, and the rotation structure and the rotation principle of the test turntable 133 are not limited specifically here.
In this embodiment, a loading port is further opened at a position of the outer skin 190 close to the bottom frame 113, an automatic door device 180 is further disposed on a side of the bottom frame 113 away from the feed source 150, the automatic door device 180 includes a door body 181 for blocking the loading port, a horizontal driving element 183 and a vertical driving element 185, the horizontal driving element 183 is disposed on the bottom frame 113 and is in transmission connection with the door body 181 for pushing the door body 181 to move along a horizontal direction, and the vertical driving element 185 is disposed on the bottom frame 113 and is in transmission connection with the door body 181 for pushing the door body 181 to move along a vertical direction.
In this embodiment, the loading port is used for realizing the feeding and the ejection of compact of the antenna that awaits measuring, specifically, when actually carrying out the dismouting antenna that awaits measuring, realizes pressing from both sides, transport and placing of the antenna that awaits measuring through outside manipulator 200, and test revolving stage 133 cooperation automatically-controlled door device 180 realizes the feeding, ejection of compact and the test of the antenna that awaits measuring, and test fixture 135 realizes the location of trolley-bus antenna, the quick intercommunication of clamping and cable.
In this embodiment, the door body 181 is provided with a slide rail 187, the horizontal driving member 183 is provided with a slide groove 189 matching with the slide rail 187, and the slide rail 187 is disposed along the vertical direction, so that the door body 181 can move along the vertical direction relative to the horizontal driving member 183 under the driving of the vertical driving member 185. Specifically, the horizontal driving member 183 is connected to the bottom frame 113 to perform the functions of pushing the door body 181 outwards and retracting the door body 181, the vertical driving member 185 is also connected to the bottom frame 113 to perform the functions of lifting or lowering the door body 181, the sliding rail 187 is disposed inside the door body 181, and the sliding groove 189 of the horizontal driving member 183 is horizontally clamped on the sliding rail 187, that is, the edge of the sliding groove 189 has a stopper, so that the sliding rail 187 is prevented from being separated from the sliding groove 189 when the horizontal driving member 183 pushes the door body 181 inwards.
The automatic door device 180 provided in this embodiment is intended to open or close the loading port, so that the manipulator 200 can quickly grip or place the antenna to be tested from the loading port. Specifically, the work flow during the disassembly and assembly is as follows: firstly, the horizontal driving part 183 pushes the door body 181 outwards to enable the door body 181 to unblock the loading port, then the vertical driving part 185 upwards pulls the door body 181 to enable the loading port to be exposed, then the testing turntable 133 rotates 180 degrees to send the tested antenna on the testing fixture 135 to the loading port, meanwhile, the testing fixture 135 loosens the tested antenna, the external manipulator 200 grabs the tested antenna and then places another new tested antenna, the testing fixture 135 clamps the new tested antenna again, then the testing turntable 133 rotates 180 degrees to send the testing fixture 135 to the position below the reflecting surface 170, then the vertical driving part 185 moves downwards to put down the door body 181, and finally, the horizontal driving part 183 pushes the door body 181 inwards to enable the door body 181 to block the loading port, so that a dismounting action is completed.
It should be noted that, in the present embodiment, by using the automatic door device 180, the testing turntable 133, the manipulator 200 and the testing fixture 135 in a matching manner, the time for the tested antenna to enter and exit the compact range can be shortened to within 60s, the time for replacing the tested antenna is greatly shortened, and the testing efficiency is increased.
It should be noted that in this embodiment, the horizontal driving element 183 and the vertical driving element 185 are both cylinders, and the horizontal cylinder, the vertical cylinder and the sliding rail 187 are all two, two sliding rails 187 are disposed at two ends of the inner side of the door body 181, the two horizontal cylinders are respectively matched with the two sliding rails 187, and the two vertical cylinders are respectively disposed at two sides of the door body 181, so as to ensure the stability of the driving process.
In this embodiment, in order to reduce the influence of the surge of metal equipment and cables on the overall test effect, only the antenna bearing structure 130, the feed source 150 and the reflecting surface 170 are placed inside the compact yard, and other components, such as the vector network, the PLC control cabinet, the pneumatic components, the control computer and other equipment, are externally arranged and connected with the inside of the compact yard through the wire passing hole. The test turret 133 is placed opposite the feed source 150 so that the loading port is located away from the feed source 150, the test turret 133 is placed outside the plane of the reflecting surface 170, an access port is further opened in the other side surface of the outer skin 190, and an access door having a small size, preferably 1400mm × 400mm, is provided.
In this embodiment, wave-absorbing materials 190a are laid on both the inner side surface of the outer skin 190 and the inner side surface of the door body 181. Specifically, in consideration of the relationship between the internal frame and the external skin 190 and the electrical performance requirements, the wave-absorbing material 190a with the height of 190mm is integrally installed inside the compact yard, the wave-absorbing material 190a with the height of 190mm is just higher than the height of the frame relative to the external skin 190, meanwhile, the shielding position of the frame is covered with the flat-plate-type wave-absorbing material 190a, the inner side surface of the door body 181 is covered with the wave-absorbing material 190a with the height of 50mm, so as to avoid interference, and the edge of the door body 181 is pasted with a conductive adhesive tape and a beryllium copper reed, so as to play a role in.
The exterior skin 190 comprises a top skin 191, an upper skin 193, a lower skin 195 and a bottom skin 197, the top skin 191 is arranged outside the top frame 117, the upper skin 193 is arranged outside the middle frame 115, the lower skin 195 is arranged outside the bottom frame 113, the bottom skin 197 is arranged on the chassis 111, a loading opening is formed in one side wall of the lower skin 195, a detection opening is further formed in the other side wall of the lower skin 195, and a detection door for opening or closing the detection opening is arranged at the detection opening. Specifically, the external skin 190 is provided in a split manner, so that each skin part can be detached from the frame at the same time, and the convenience of detachment is further improved.
In this embodiment, the bottom skin 197 is welded on the chassis 111, the lower skin 195 covers the outside of the bottom frame 113, the lower edge of the lower skin is connected to the channel steel of the chassis 111 through bolts, the detection door and the air inlet fan are arranged, the lower edge of the upper skin 193 is connected to the lower skin 195 through bolts and covers the middle frame 115, and the top skin 191 is connected to the upper skin 193 through bolts and has an air outlet fan.
In the embodiment, gaps between the top skin 191 and the upper skin 193 and between the upper skin 193 and the lower skin 195 are filled with the mesh wave-absorbing structure. Specifically, the connection gap between the upper skin 193 and the lower skin 195 is 200mm above the feed source 150, and copper mesh is filled in the connection gap to reduce the shielding effect at the gap, and meanwhile, the screw distance is smaller to achieve a better compression effect. In addition, the fan is also covered with a honeycomb-shaped copper mesh, and the wire through holes are filled with wave absorbing materials 190a, so that the whole shielding effect of the compact range is ensured.
The compact range testing apparatus 100 provided in the present embodiment is assembled as follows: when construction needs exist, all the disassembled parts are transported to a required place through an elevator, the chassis 111 is firstly placed at a preset position during assembly, the bottom frame 113 and the middle frame 115 are installed later, the reflecting surface 170 and the top frame 117 are connected, the pitching angle of the reflecting surface 170 is adjusted and locked, the top frame 117 is integrally hoisted to the top of the middle frame 115, and then the feed source 150 and the antenna bearing structure 130 are installed. After the frame and the internal components are completed, the exterior skin 190 is installed, the top skin 191 is disposed outside the top frame 117, the upper skin 193 is disposed outside the middle frame 115, the lower skin 195 is disposed outside the bottom frame 113, the bottom skin 197 is disposed on the floor pan 111, and other parts such as the inspection door and the automatic door apparatus 180 are installed. After the installation is finished, the wave absorbing material 190a is attached to the back of the connected inner cable, finally the skin at the position of the access door is installed, the relative position of each component is calibrated through the laser tracker, the laser tracker is adjusted by combining with an electrical performance test, after the calibration is finished, the laser tracker stands for one day to release stress, and the test can be carried out after the release.
In conclusion, the compact range testing device 100 provided by the embodiment solves the problems that the existing compact range testing device is difficult to carry and difficult to enter a yard through the split type mounting box body 110, all parts of the device can be transported through a conventional elevator, and the assembly structure eliminates the influence on the relative positions of all parts in a darkroom in the carrying process. Meanwhile, the automatic door device 180, the testing rotary table 133, the manipulator 200 and the testing fixture 135 are used in a matched mode, the control period of a darkroom is shortened, the testing efficiency is improved, conditions are provided for batch testing of the antennas, the time for carrying, installing and inserting cables of the antennas is shortened, and the positioning accuracy of the antennas is also improved through the pneumatic fixture. In addition, different wave-absorbing materials 190a are pasted on different positions of the inner wall of the darkroom, and wave-absorbing structures are added at skin gaps and through holes, so that the problem that the wave-absorbing materials 190a are difficult to cover completely is solved, meanwhile, material carrying is realized by using simpler linear action, interference among the wave-absorbing materials 190a is reduced, and the electromagnetic performance of a compact range is improved.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a compact range test equipment, its characterized in that, is including installation box, antenna bearing structure, feed, plane of reflection and exterior skin, the installation box is including the chassis, bottom frame, middle part frame and the top frame that the components of a whole that can function independently set up, bottom frame detachably sets up on the chassis, middle part frame detachably sets up on the bottom frame, top frame detachably sets up on the middle part frame, antenna bearing structure sets up on the chassis, the feed sets up bottom frame or the inboard of middle part frame, the plane of reflection sets up the inboard of top frame, exterior skin cladding respectively the chassis bottom frame the middle part frame with outside the top frame.
2. The compact range testing apparatus of claim 1, wherein a mounting plate is disposed at a bottom end of the bottom frame, the mounting plate is detachably connected to the chassis, a first mounting flange is disposed at a top of the bottom frame, a second mounting flange is disposed at a bottom of the middle frame, the first mounting flange and the second mounting flange are detachably connected, a third mounting flange is disposed at a top of the middle frame, and the top frame is detachably connected to the third mounting flange.
3. The compact range testing apparatus of claim 2, wherein the chassis includes an enclosure frame, a mounting shelf disposed in the enclosure frame for carrying the mounting plate and the antenna carrying structure, and a carrier shelf disposed at a bottom of the mounting shelf and having a plurality of carrying grooves.
4. The compact range testing apparatus according to claim 1, wherein said antenna carrying structure includes a mounting base, a testing turntable, and a testing fixture for mounting an antenna to be tested, said mounting base being detachably disposed on said chassis, said testing turntable being rotatably disposed on said mounting base, said testing fixture being connected to said testing turntable for rotation relative to said mounting base under the driving of said testing turntable.
5. The compact range testing apparatus of claim 4, wherein a lifting drive is further provided on the testing turntable, the lifting drive being in driving connection with the test fixture for lifting or lowering the test fixture.
6. The compact range testing equipment according to claim 1 or 4, wherein a loading port has been further opened at a position where the exterior skin is close to the bottom frame, an automatic door device has been further provided at a side of the bottom frame away from the feed source, the automatic door device includes a door body for plugging the loading port, a horizontal driving member and a vertical driving member, the horizontal driving member is provided on the bottom frame and is connected with the door body in a transmission manner for pushing the door body to move in a horizontal direction, and the vertical driving member is provided on the bottom frame and is connected with the door body in a transmission manner for pushing the door body to move in a vertical direction.
7. The compact range testing apparatus according to claim 6, wherein the door body is provided with a slide rail, the horizontal driving member is provided with a slide groove matched with the slide rail, and the slide rail is arranged in a vertical direction, so that the door body can be driven by the vertical driving member to move in the vertical direction relative to the horizontal driving member.
8. The compact range testing apparatus of claim 6, wherein wave absorbing materials are laid on both the inside surface of the exterior skin and the inside surface of the door body.
9. The compact range testing apparatus of claim 8, wherein the exterior skin comprises a top skin, an upper skin, a lower skin, and a bottom skin, the top skin being disposed outside the top frame, the upper skin being disposed outside the middle frame, the lower skin being disposed outside the bottom frame, the bottom skin being disposed on the chassis, the load port opening in one of the sidewalls of the lower skin.
10. The compact range testing apparatus of claim 9, wherein gaps between the top skin and the upper skin, and gaps between the upper skin and the lower skin are filled with a mesh wave absorbing structure.
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