CN114675246B - Novel radar signal simulator with long service life - Google Patents
Novel radar signal simulator with long service life Download PDFInfo
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- CN114675246B CN114675246B CN202210583790.5A CN202210583790A CN114675246B CN 114675246 B CN114675246 B CN 114675246B CN 202210583790 A CN202210583790 A CN 202210583790A CN 114675246 B CN114675246 B CN 114675246B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/40—Means for monitoring or calibrating
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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
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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
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Radar Systems Or Details Thereof (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention relates to the technical field of signal simulation, in particular to a novel radar signal simulator with long service life. The shielding and protecting shell comprises a lower shell and an upper shell. The lower casing has the chamber that holds that is used for placing radar signal simulator body, goes up the casing and is connected with the lower casing is detachable in order being used for holding the chamber and seal. The internal first shielding layer that has of inferior valve, the internal second shielding layer that has of epitheca, when the detachable connection of epitheca and inferior valve casing, first shielding layer and second shielding layer electric connection and the two will hold the chamber jointly and surround. The lower shell is provided with a grounding component which is electrically connected with the first shielding layer. The radar signal simulator can effectively reduce adverse effects of an electromagnetic field in a storage environment on a radar signal simulator body, reduce the aging speed of internal elements, and effectively guarantee the precision and the service life of the radar signal simulator.
Description
Technical Field
The invention relates to the technical field of signal simulation, in particular to a novel radar signal simulator with a long service life.
Background
For a high-precision radar signal simulator, in the storage process, if a surrounding electromagnetic field is strong, negative effects are easily generated on electromagnetic components inside the radar signal simulator, and certain negative effects are generated on the service life and the accuracy of internal components of the radar signal simulator.
In view of this, the present application is specifically proposed.
Disclosure of Invention
The invention aims to provide a novel radar signal simulator with long service life, which can effectively reduce the adverse effect of an electromagnetic field in a storage environment on a radar signal simulator body, reduce the aging speed of internal elements and effectively ensure the precision and the service life of the radar signal simulator; compared with a special electromagnetic field prevention warehouse for storage, the electromagnetic field prevention warehouse has the advantages that the cost is greatly reduced, the use is more convenient, the limitation of the position of the electromagnetic field prevention warehouse is avoided, the transferability is stronger, and the universality is stronger.
The technical scheme of the invention is realized as follows:
a high life novel radar signal simulator, comprising: radar signal simulator body and shielding protecting crust.
The shielding and protecting shell comprises a lower shell and an upper shell. The lower shell is provided with a containing cavity for placing the radar signal simulator body, and the upper shell and the lower shell are detachably connected and used for closing the containing cavity.
The internal first shielding layer that is put of inferior valve, the internal second shielding layer that is put of epitheca, when the detachable connection of epitheca and inferior valve body, first shielding layer and second shielding layer electric connection and the two will hold the chamber jointly and surround.
The lower shell is provided with a grounding component which is electrically connected with the first shielding layer.
Further, the grounding assembly includes: first barrel, first lead electrical pillar, second and lead electrical pillar, first stop collar and second stop collar.
The first cylinder is connected with the lower shell. One end of the first cylinder is of a closed structure, and the other end of the first cylinder is of an open structure.
The first conductive column is accommodated in the first cylinder. Along the circumference of first barrel, first leading electrical pillar and the fixed cooperation of first barrel. Along the axial of first barrel, first leading electrical pillar and first barrel sliding fit. A first elastic piece is connected between the end part of the inner end of the first conductive column and the end wall of the first cylinder in an abutting mode. The first conductive column is electrically connected with the first shielding layer through the second conductive column.
Coaxial fixed connection in the tip of first barrel of first stop collar, first leading electrical pillar passes first stop collar.
The first stop collar is provided with a yielding notch, the yielding notch extends towards the first barrel from the end face of one end, far away from the first barrel, of the first stop collar, and the yielding notch penetrates through the outer wall of the first stop collar to the inner wall of the first stop collar.
The second stop collar is sleeved outside the first stop collar. And the second limiting sleeve is fixedly matched with the first limiting sleeve along the circumferential direction of the first limiting sleeve. And the second limiting sleeve is in sliding fit with the first limiting sleeve along the axial direction of the second limiting sleeve.
The outer wall of the first conductive column is fixedly connected with a first convex block, the first convex block is slidably matched in the abdicating notch, the second limiting sleeve is provided with a first stop block used for blocking the first convex block, and the first stop block is positioned on one side of the first convex block, which is far away from the first barrel body.
One end of the second limiting sleeve, which is close to the first barrel, is detachably connected with one end of the first barrel, which is close to the first limiting sleeve.
Furthermore, a second bump is fixedly arranged on the inner wall of the second limiting sleeve and is arranged at one end, close to the first cylinder, of the second limiting sleeve. The outer wall of the first limiting sleeve is fixedly provided with a second stop block used for stopping the second convex block, and the second stop block is positioned on one side, away from the first barrel, of the second convex block.
Further, the grounding assembly further comprises: a second cylinder.
The wall setting of casing under the second barrel perpendicular to, second barrel and casing fixed connection down, the second is led electrical pillar and is held in the middle of the second barrel.
The first cylinder is connected to one end, far away from the lower shell, of the second cylinder, and the central axes of the first cylinder and the second cylinder are perpendicular to each other and are located in the same plane. And the first cylinder body is in running fit with the second cylinder body along the circumferential direction of the second cylinder body. Along the axial of second barrel, first barrel and second barrel fixed fit.
Still fixed being provided with first conductive sleeve in the first barrel, first conductive sleeve cover is located first electrically conductive post and is led electrical connection with first electrically conductive post. Along the axial direction of the first conductive column, the first conductive column is in sliding fit with the first conductive sleeve.
The second conductive column penetrates through the side wall of the first cylinder and extends into the first cylinder, and the second conductive column is electrically connected with the first conductive sleeve and is in rotating fit with the first conductive sleeve.
Furthermore, the first shielding layer is distributed along the peripheral side wall and the bottom wall of the lower shell, and the second shielding layer is distributed along the peripheral side wall and the top wall of the upper shell.
Further, the lower case is provided with a slide bar which is arranged along the height direction of the lower case and slidably fitted to the lower case.
The bottom that holds the chamber is provided with the cushion, and the edge that holds the chamber is located to a plurality of cushions branch. The holding tank has been seted up at the top of cushion, and the direction of height slidable cooperation along the cushion has the sliding block in the holding tank, and the butt joint has the second elastic component between the bottom of sliding block and holding tank.
The cell wall of holding tank has seted up the cooperation through-hole, and the cooperation through-hole runs through to the outer wall of cushion. The matching through hole is internally provided with a rotating shaft, and the rotating shaft axis of the rotating shaft is vertical to the height direction of the lower shell.
Pivot fixedly connected with first extension arm and second extension arm, first extension arm extend towards the holding tank in, the second extension arm extends and extends to the bottom of slide bar towards the cushion outside, the second extension arm and slide bar cooperation.
When the radar signal simulator body was put into down in the middle of the casing, the radar signal simulator body pushed down the sliding block, and first extension arm drive pivot is stirred to the sliding block, and the second extension arm is along with the pivot motion with slide bar jack-up.
Furthermore, the slide bar is made of a conductive material, a second conductive sleeve is fixedly arranged on the lower shell, and the second conductive sleeve is sleeved on the slide bar and is electrically connected with the slide bar. And the sliding rod is in sliding fit with the second conductive sleeve along the axial direction of the sliding rod.
The second conductive sleeve is electrically connected with the first shielding layer, and when the upper shell is detachably connected with the lower shell, the first shielding layer is electrically connected with the second shielding layer through the sliding rod.
Furthermore, the first extension arm and the second extension arm are arranged in parallel and are respectively arranged on two opposite sides of the rotating shaft. Along the height direction of the lower shell, the first extension arm is connected to the upper half part of the rotating shaft, and the second extension arm is connected to the lower half part of the rotating shaft.
Furthermore, the first extension arm is provided with a first arc-shaped section, and the first arc-shaped section is attached to the surface of the rotating shaft and is fixedly connected with the rotating shaft. The second extension arm is provided with a second arc-shaped section, and the second arc-shaped section is attached to the surface of the rotating shaft and is fixedly connected with the rotating shaft. The first arc-shaped section and the second arc-shaped section are positioned at two opposite sides of the rotating shaft.
The first arc-shaped section is connected with a first elastic adhesive layer, and the first elastic adhesive layer extends towards one side far away from the second arc-shaped section and is fixedly connected with the hole wall of the matched through hole. The second arc-shaped section is connected with a second elastic adhesive layer, and the second elastic adhesive layer extends towards one side far away from the first arc-shaped section and is fixedly connected with the hole wall of the matched through hole.
When the sliding block is not under pressure, the first elastic adhesive layer and the second elastic adhesive layer are in a natural state. When the lower casing was put into when the sliding block was pushed down to radar signal simulator body, first elastic adhesive layer and second elastic adhesive layer were by elastic stretching.
Furthermore, the slide bar is provided with a transmission through hole which penetrates through the slide bar along the radial direction of the slide bar. The second extension arm passes through the transmission through hole. The second extension arm is provided with a sliding groove arranged along the length direction of the second extension arm, the inner wall of the transmission through hole is fixedly provided with a positioning column, and the positioning column can be matched with the sliding groove in a sliding mode.
The technical scheme of the invention has the beneficial effects that:
the novel radar signal simulator with long service life can effectively reduce the adverse effect of an electromagnetic field in a storage environment on a radar signal simulator body, reduce the aging speed of internal elements, and effectively guarantee the precision and the service life of the radar signal simulator; compared with a special electromagnetic field prevention warehouse for storage, the electromagnetic field prevention warehouse has the advantages that the cost is greatly reduced, the use is more convenient, the limitation of the position of the electromagnetic field prevention warehouse is avoided, the transferability is stronger, and the universality is stronger.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a novel radar signal simulator provided in an embodiment of the present invention;
fig. 2 is a schematic diagram of an internal structure of the novel radar signal simulator provided in the embodiment of the present invention;
fig. 3 is a schematic diagram of a first operating state of a grounding assembly of the novel radar signal simulator provided by the embodiment of the invention;
fig. 4 is a schematic diagram of a second operating state of the grounding assembly of the novel radar signal simulator provided in the embodiment of the present invention;
fig. 5 is a schematic partial internal structural diagram of a grounding assembly of the novel radar signal simulator provided in the embodiment of the present invention;
fig. 6 is a schematic diagram of a partial internal structure of a grounding assembly of the novel radar signal simulator, which is vertically viewed from fig. 5 according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an internal structure of a grounding assembly of the novel radar signal simulator provided in the embodiment of the present invention;
fig. 8 is a schematic internal structural diagram of a grounding assembly of the novel radar signal simulator according to an embodiment of the present invention, in a state where a first conductive pillar moves toward a first cylinder;
FIG. 9 is a schematic view of the grounding assembly in contact with a wall surface;
FIG. 10 is a schematic structural view of the lower case;
FIG. 11 is a schematic view of the engagement of the spacer;
FIG. 12 is a schematic view of a first operating state of the spacer;
FIG. 13 is a schematic view of the engagement between the first extension arm, the second extension arm and the slide bar;
FIG. 14 is a schematic view of a second operating condition of the spacer;
FIG. 15 is a schematic view of the shielding enclosure without the radar signal simulator body disposed therein;
FIG. 16 is a schematic view of a shielding enclosure with a radar signal simulator body disposed therein;
FIG. 17 is a schematic view of the fitting of the slide bar;
FIG. 18 is an enlarged partial schematic view of the mating assembly of FIG. 17;
FIG. 19 is an enlarged partial schematic view at the slide bar of FIG. 17;
FIG. 20 is a schematic view of the slide bar mated with the mating component;
fig. 21 is a schematic structural view of the mating assembly.
Description of the reference numerals:
a new radar signal simulator 1000; a radar signal simulator body 100; a shielding protective case 200; a lower case 210; the accommodation chamber 211; a first shield layer 212; an upper case 220; a second shield layer 221; a ground assembly 300; a first barrel 310; a first conductive sleeve 311; a first conductive pillar 320; the first bump 321; a second conductive post 330; a first stop collar 340; a yield gap 341; a half shell 343; a second stopper 344; a second stop collar 350; the first stopper 351; the second bump 352; a rotating ring 353; a first elastic member 360; a second cylinder 370; a slide bar 400; a drive through hole 410; a positioning post 420; a cushion block 500; a receiving groove 510; a slider 520; a second elastic member 530; a mating through-hole 540; a rotating shaft 550; a first extension arm 551; a first arcuate segment 552; a first elastic adhesive layer 553; a second extension arm 554; a second arcuate segment 555; a second elastic glue layer 556; a chute 557; a second conductive sleeve 600; a mating assembly 700; a guide 710; a guide section 711; a mating cap 720; a third elastic member 730; a recessed region 810; a blind hole 820; a stopper 830.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. 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 obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection 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.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "parallel," "perpendicular," and the like do not require that the components be absolutely parallel or perpendicular, but may be slightly inclined. For example, "parallel" merely means that the directions are more parallel relative to "perpendicular," and does not mean that the structures must be perfectly parallel, but may be slightly tilted.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Examples
Referring to fig. 1 and fig. 2, the present embodiment provides a novel radar signal simulator 1000 with a long service life, where the novel radar signal simulator 1000 includes: radar signal simulator body 100 and shielding containment 200.
The shield shell 200 includes a lower case 210 and an upper case 220.
The lower case 210 has a receiving cavity 211 for receiving the radar signal simulator body 100, and the upper case 220 is detachably connected to the lower case 210 to close the receiving cavity 211, thereby locking the radar signal simulator body 100 in the shielding shield 200.
When the upper housing 220 is detachably connected to the lower housing 210, the first shielding layer 212 and the second shielding layer 221 are electrically connected and surround the accommodating cavity 211 together. The lower housing 210 is provided with a grounding element 300, and the grounding element 300 is electrically connected to the first shielding layer 212.
In this way, the first shielding layer 212 and the second shielding layer 221 form a complete shielding layer, so as to shield and protect the radar signal simulator body 100 stored in the accommodating cavity 211, and prevent the external electromagnetic field from damaging the internal components of the radar signal simulator body 100.
In this way, each radar signal simulator body 100 is equipped with a shielding shell 200, and when the radar signal simulator body 100 is required to be used, the radar signal simulator body 100 is taken out of the shielding shell 200. After the radar signal simulator body 100 is used, the shielding protective shell 200 is placed back again, and the shielding protective shell 200 can continue to be positioned in the radar signal simulator body 100 to provide shielding protection.
High life's novel radar signal simulator 1000 can reduce effectively and deposit the adverse effect of the electromagnetic field in the environment to radar signal simulator body 100, reduces the ageing speed of internal element, ensures radar signal simulator's precision and life effectively. Compared with the special electromagnetic field prevention warehouse for storage, the electromagnetic field prevention warehouse has the advantages that the cost is greatly reduced, the use is more convenient, the electromagnetic field prevention warehouse is not fixed like the position of the electromagnetic field prevention warehouse, the electromagnetic field prevention warehouse is not limited by the position of the electromagnetic field prevention warehouse any more, the transferability is stronger, and the universality is stronger.
Referring to fig. 1 to 9, in the present embodiment, the grounding assembly 300 includes: the first cylinder 310, the first conductive post 320, the second conductive post 330, the first stop collar 340 and the second stop collar 350.
The first cylinder 310 has a cylindrical shape.
One end of the first cylinder 310 is a closed structure, and the other end is an open structure.
The first conductive pillar 320 is accommodated in the first cylinder 310 and extends from one end of the first cylinder 310. Along the circumference of the first cylinder 310, the first conductive pillar 320 is fixedly engaged with the first cylinder 310. The first conductive post 320 is slidably engaged with the first cylinder 310 along the axial direction of the first cylinder 310.
The first conductive pillar 320 is abutted with a first elastic element 360 between an end of the first cylinder 310 and an inner end wall of the first cylinder 310. The first conductive pillar 320 is electrically connected to the first shielding layer 212 through the second conductive pillar 330.
The first limiting sleeve 340 is coaxially and fixedly connected to the end of the first cylinder 310, and the first conductive post 320 penetrates through the first limiting sleeve 340. The first position-limiting sleeve 340 is also cylindrical, and the outer diameter of the first position-limiting sleeve 340 is smaller than that of the first cylinder 310. In this embodiment, along the circumferential direction of the first position-limiting sleeve 340, the first conductive pillar 320 is fixedly fitted with the first position-limiting sleeve 340; along the axial direction of the first position-limiting sleeve 340, the first conductive post 320 is in sliding fit with the first position-limiting sleeve 340.
The first position-limiting sleeve 340 is provided with a yielding notch 341, the yielding notch 341 extends from the end surface of the first position-limiting sleeve 340 far away from the first cylinder 310 to the first cylinder 310, and the yielding notch 341 penetrates from the outer wall of the first position-limiting sleeve 340 to the inner wall thereof. The yielding notch 341 extends from the end surface of the first position-limiting sleeve 340 far away from the first cylinder 310 to the end of the first cylinder 310, that is, the length of the yielding notch 341 is the same as that of the first position-limiting sleeve 340.
Specifically, the number of the yielding notches 341 is two, the two yielding notches 341 are located on two opposite sides of the first position-limiting sleeve 340, and the two yielding notches 341 divide the first position-limiting sleeve 340 into two half shells 343. The first conductive post 320 fits between the two half shells 343.
The second position-limiting sleeve 350 is sleeved outside the first position-limiting sleeve 340. Along the circumferential direction of the first position-limiting sleeve 340, the second position-limiting sleeve 350 is fixedly matched with the first position-limiting sleeve 340. The second stop collar 350 is slidably engaged with the first stop collar 340 along the axial direction of the second stop collar 350.
The outer wall of the first conductive pillar 320 is fixedly connected with a first bump 321, the first bump 321 is slidably fitted in the yielding notch 341, and the first bump 321 is adapted to the yielding notch 341. The second position-limiting sleeve 350 has a first stopper 351 for stopping the first protrusion 321, and the first stopper 351 is located on a side of the first protrusion 321 away from the first cylinder 310. Specifically, the first stopper 351 is disposed at an end of the second stop collar 350 away from the first cylinder 310.
One end of the second stop collar 350 close to the first cylinder 310 is detachably connected with one end of the first cylinder 310 close to the first stop collar 340.
The inner wall of the second position-limiting sleeve 350 is fixedly provided with a second bump 352, and the second bump 352 is arranged at one end of the second position-limiting sleeve 350 close to the first cylinder 310. A second stopper 344 for stopping the second protrusion 352 is fixedly arranged on the outer wall of the first position-limiting sleeve 340, and the second stopper 344 is located on one side of the second protrusion 352, which is far away from the first cylinder 310.
The two half shells 343 of the first position-limiting sleeve 340 are each provided with a second stop 344, and along the circumferential direction of the first position-limiting sleeve 340, the second stop 344 is located in the middle of the half shell 343, and along the axial direction of the first position-limiting sleeve 340, the second stop 344 is located at one end of the half shell 343 away from the first cylinder 310.
Further, the grounding assembly 300 further includes: and a second cylinder 370. The first cylinder 310 is connected to the lower housing 210 through the second cylinder 370.
The second cylinder 370 is perpendicular to the wall of the lower housing 210, the second cylinder 370 is fixedly connected to the lower housing 210, and the second conductive pillar 330 is accommodated in the second cylinder 370. The second conductive pillars 330 penetrate through the interior of the lower housing 210 and electrically connect with the first shielding layer 212.
The first cylinder 310 is connected to an end of the second cylinder 370 away from the lower housing 210, and central axes of the first cylinder 310 and the second cylinder 370 are perpendicular and in the same plane. Along the circumference of the second cylinder 370, the first cylinder 310 is in damped rotational engagement with the second cylinder 370. The first cylinder 310 is fixedly engaged with the second cylinder 370 in the axial direction of the second cylinder 370.
The first cylinder 310 is further fixedly provided with a first conductive sleeve 311, and the first conductive sleeve 311 is sleeved on the first conductive pillar 320 and electrically connected to the first conductive pillar 320. The first conductive post 320 is slidably fitted with the first conductive sleeve 311 along the axial direction of the first conductive post 320.
The second conductive pillar 330 penetrates through the sidewall of the first cylinder 310 and extends into the first cylinder 310, and the second conductive pillar 330 is electrically connected to and rotationally engaged with the first conductive sleeve 311.
Through the above design, after the radar signal simulator body 100 is mounted in the shielding protection shell 200, the first cylinder 310 is rotated relative to the second cylinder 370, so that the first cylinder 310 is perpendicular to the ground and the first conductive pillar 320 faces the ground.
The connection between the second limiting sleeve 350 and the first cylinder 310 is released, and under the action of the first elastic element 360, the first conductive pillar 320 extends out of the first cylinder 310 and is attached to the ground, so that grounding is completed. The second projection 352 of the second position restricting sleeve 350 is received by the second stopper 344 of the first position restricting sleeve 340, and the second position restricting sleeve 350 does not fall off from the first position restricting sleeve 340.
When the novel radar signal simulator 1000 needs to be moved away, firstly, the second limiting sleeve 350 slides towards the first cylinder body 310 along the first limiting sleeve 340, the first stop block 351 of the second limiting sleeve 350 can push the first conductive column 320 towards the first cylinder body 310 through the first protruding block 321 of the first conductive column 320, so that the first conductive column 320 is retracted, then, the second limiting sleeve 350 is connected with the first cylinder body 310 again, the first conductive column 320 can be locked again, and in this way, the first conductive column 320 is retracted smoothly, the novel radar signal simulator 1000 can be moved normally, and the first conductive column 320 is not easy to damage during moving.
In addition, when placing novel radar signal simulator 1000's local ground unevenness, because the back is relieved with being connected of first barrel 310 when second stop collar 350, first lead electrical pillar 320 and stretch out under the spring action of first elastic component 360, have better adaptability, can adapt to the ground of unevenness, under the spring action of first elastic component 360, also can guarantee that first lead electrical pillar 320 and ground are fully laminated, guarantee ground connection, in order to ensure to exert better shielding effect smoothly.
In a special case, for example, the recessed depth of the region corresponding to the first conductive pillar 320 is too large, since the second position-limiting sleeve 350 cannot fall off from the first position-limiting sleeve 340, the second position-limiting sleeve 350 can block the first bump 321 of the first conductive pillar 320 by the first stopper 351, so as to prevent the first conductive pillar 320 from completely falling out of the first barrel 310.
It should be noted that, novel radar signal simulator 1000 can also realize ground connection through contacting with the wall, and after putting novel radar signal simulator 1000 in the position that is close to the wall, during ground connection, rotate first barrel 310 relative second barrel 370, make first barrel 310 perpendicular to wall and make first conductive pillar 320 towards the wall, pull down second stop collar 350 from first barrel 310 again can.
In order to facilitate the connection between the second position-limiting sleeve 350 and the first cylinder 310, a rotating ring 353 is rotatably fitted at one end of the second position-limiting sleeve 350 close to the first cylinder 310, and the rotating ring 353 and the second position-limiting sleeve 350 are coaxially arranged. The rotating ring 353 has an internal thread, one end of the first cylinder 310 close to the second limiting sleeve 350 has an external thread, and the second limiting sleeve 350 is detachably connected (in threaded connection) with the first cylinder 310 through the rotating ring 353.
Further, in the present embodiment, the first shielding layer 212 is disposed along the peripheral side wall and the bottom wall of the lower casing 210, and the second shielding layer 221 is disposed along the peripheral side wall and the top wall of the upper casing 220. When the upper housing 220 is mated with the lower housing 210, the first shielding layer 212 and the second shielding layer 221 completely enclose the receiving cavity 211, forming a complete shielding layer. The first shielding layer 212 and the second shielding layer 221 may be mesh structures or may be complete layered structures (i.e., not perforated).
In the present embodiment, the first cylinder 310, the second cylinder 370, the first position-limiting sleeve 340, the second position-limiting sleeve 350, and the first elastic element 360 are all made of an insulating material.
Referring to fig. 10 to 16, the lower housing 210 further includes a sliding rod 400, and the sliding rod 400 is disposed along the height direction of the lower housing 210 and slidably engaged with the lower housing 210. The slide bar 400 is disposed inside a sidewall of the lower case 210, and the slide bar 400 may extend to an upper edge of a mouth of the lower case 210.
The bottom that holds chamber 211 is provided with cushion 500, and the edge that holds chamber 211 is located to a plurality of cushion 500 branches. In this embodiment, the spacers 500 are disposed at 4 corners of the receiving cavity 211, and each corner is disposed with one spacer 500, but is not limited thereto.
The top of the spacer 500 is formed with a receiving groove 510 extending along the depth direction of the receiving cavity 211, a sliding block 520 is received in the receiving groove 510, and the sliding block 520 is slidably engaged with the receiving groove 510 along the depth direction of the receiving groove 510. A second elastic member 530 is abutted between the sliding block 520 and the bottom of the receiving groove 510. Naturally, the sliding block 520 is lifted by the second elastic member 530, so that a portion of the sliding block 520 protrudes from the mouth of the receiving groove 510 to the outside of the pad 500.
The groove wall of the receiving groove 510 is formed with a fitting through hole 540, and the fitting through hole 540 penetrates to the outer wall of the cushion block 500 along the radial direction of the receiving groove 510. The rotation shaft 550 is disposed in the fitting through hole 540, and a rotation axis of the rotation shaft 550 is disposed perpendicular to the height direction of the lower housing 210.
A first extension arm 551 and a second extension arm 554 are fixedly attached to the shaft 550. The first extension arm 551 extends toward the receiving groove 510. The inner wall of the lower housing 210 is provided with a yielding region, the yielding region exposes the lower end of the sliding rod 400, the second extension arm 554 extends towards the outside of the cushion block 500 and extends to the bottom end of the sliding rod 400, and the second extension arm 554 is matched with the sliding rod 400. Each spacer 500 is engaged with one of the slide bars 400.
When the radar signal simulator body 100 is put into the lower case 210, the radar signal simulator body 100 is received by the four spacers 500. The sliding block 520 is pressed down by the radar signal simulator body 100, the sliding block 520 presses the end of the first extension arm 551 down, so that the first extension arm 551 is poked to drive the rotating shaft 550 to rotate, and the second extension arm 554 moves along with the rotating shaft 550, so that the sliding rod 400 is jacked up.
Like this, radar signal simulator body 100 is with the cushion 500 after full contact, and after radar signal simulator body 100 put into target in place promptly, four slide bars 400 of lower casing 210 all can upwards stretch out, like this, can place for radar signal simulator body 100 and target in place and indicate, and help judging radar signal simulator body 100 in addition whether to set level.
Further, the sliding bar 400 is made of a conductive material, the lower housing 210 is fixedly provided with a second conductive sleeve 600, and the second conductive sleeve 600 is sleeved on the sliding bar 400 and electrically connected with the sliding bar 400. The slide bar 400 is slidably engaged with the second conductive sleeve 600 in an axial direction of the slide bar 400.
The second conductive sleeve 600 is electrically connected to the first shielding layer 212, and when the upper housing 220 is detachably connected to the lower housing 210, the first shielding layer 212 is electrically connected to the second shielding layer 221 through the sliding bar 400.
With reference to fig. 17 to 21, in particular, the upper housing 220 is provided with a matching component 700 for electrically matching with the sliding rod 400. The mating assembly 700 includes a guide 710 and a mating cap 720. The lower end surface of the upper housing 220 for being attached to the lower housing 210 is provided with a recessed area 810, and the bottom of the recessed area 810 is provided with a blind hole 820. The guide 710 is accommodated in the recessed area 810, the fitting cap 720 is slidably accommodated in the blind hole 820, a third elastic member 730 is connected between the fitting cap 720 and the bottom of the blind hole 820, and naturally, the third elastic member 730 pushes the fitting cap 720 to move to the mouth of the blind hole 820.
In this embodiment, the top end of the sliding rod 400 is formed in a hemispherical shape and is smoothed. The mating cap 720 has a shape on a side thereof adjacent to the outside of the blind hole 820 that is adapted to the shape of the end of the slide bar 400.
The cross section of the guide 710 is circular, the inner diameter of the guide 710 decreases gradually along the depth direction of the recessed area 810 and from the outside of the recessed area 810 to the bottom of the recessed area 810, and the inner diameter of the end of the guide 710 close to the blind hole 820 is the same as the bore diameter of the blind hole 820.
As shown in fig. 21, in the present embodiment, the guide 710 is configured by a plurality of guide segments 711, and the guide segments 711 can be regarded as if the guide 710 is sectioned by a plane perpendicular to the central axis thereof. The recessed area 810 has an inner diameter slightly larger than an outer diameter of the guide 710 such that each guide segment 711 can be displaced relatively independently within the recessed area 810 in a direction perpendicular to the central axis of the guide 710. To avoid the guide 710 from escaping from the recessed area 810, the mouth edge of the recessed area 810 is provided with a stopper 830.
The guiding element 710 is made of an insulating material, the matching cap 720 and the third elastic element 730 are made of a conductive material, the matching cap 720 is electrically connected with the third elastic element 730, and one end of the third elastic element 730 far away from the matching cap 720 is electrically connected with the second shielding layer 221.
When the upper housing 220 is covered on the lower housing 210, the upper end of the sliding rod 400 is gradually close to the guide 710, the end of the sliding rod 400 can be smoothly attached to the fitting cap 720 in the blind hole 820 under the guide of the guide segment 711 of the guide 710, and when the upper housing 220 and the lower housing 210 are completely attached, the sliding rod 400 pushes the fitting cap 720 into the blind hole 820, and the sliding rod 400 is fully attached to the fitting cap 720. Thereby electrically connecting the first shield layer 212 and the second shield layer 221.
Since each guide segment 711 can relatively independently perform a certain displacement in the recessed area 810 in a direction perpendicular to the central axis of the guide 710, and the top of the slide bar 400 is spherical and very smooth, the guide segments 711 can give way for the slide bar 400, thereby ensuring that the slide bar 400 smoothly contacts with the mating cap 720. This effectively reduces the effect of machining errors in the recessed area 810 and the guide 710.
Further, the first extension arm 551 and the second extension arm 554 are disposed in parallel and are respectively disposed on two opposite sides of the rotation shaft 550. Along the height direction of the lower housing 210, the first extension arm 551 is connected to the upper half of the rotation shaft 550, and the second extension arm 554 is connected to the lower half of the rotation shaft 550.
The first extension arm 551 has a first arc segment 552, and the first arc segment 552 fits over the surface of the rotation shaft 550 and is fixedly connected to the rotation shaft 550. The second extension arm 554 has a second arc-shaped segment 555, and the second arc-shaped segment 555 is attached to the surface of the rotation shaft 550 and is fixedly connected to the rotation shaft 550. The first and second arcuate segments 552 and 555 are located on opposite sides of the shaft 550.
The first arc-shaped section 552 is connected with a first elastic adhesive layer 553, and the first elastic adhesive layer 553 extends towards one side far away from the second arc-shaped section 555 and is fixedly connected with the hole wall of the matching through hole 540. The second arc-shaped section 555 is connected with a second elastic adhesive layer 556, and the second elastic adhesive layer 556 extends towards the side far away from the first arc-shaped section 552 and is fixedly connected with the hole wall of the matching through hole 540.
The first elastic glue layer 553 and the second elastic glue layer 556 are configured as: when the sliding block 520 is not under pressure, that is, the radar signal simulator body 100 is not in contact with the pad 500, the first elastic adhesive layer 553 and the second elastic adhesive layer 556 are in a natural state, and the sliding block 520 does not apply pressure to the first extension arm 551 either. At this time, the first extension arm 551 and the second extension arm 554 are both disposed parallel to the bottom of the lower housing 210, and the first extension arm 551 is located above the second extension arm 554.
When the radar signal simulator body 100 is placed in the lower housing 210 to press down the sliding block 520, the first extension arm 551 is pressed down by the sliding block 520, the rotating shaft 550 rotates, the first arc-shaped section 552 and the second arc-shaped section 555 rotate along with the rotating shaft 550, and the first elastic adhesive layer 553 and the second elastic adhesive layer 556 are elastically stretched. The second extension arm 554 lifts the slide bar 400.
When the radar signal simulator body 100 is taken out of the lower housing 210, the sliding block 520 is reset by the third elastic member 730, the rotating shaft 550 is reset by the elastic force of the first elastic glue layer 553 and the second elastic glue layer 556, and the sliding rod 400 is reset by the second extension arm 554.
It should be noted that the special structure of the first extension arm 551 and the second extension arm 554 is designed to make the sliding block 520 effectively drive the second extension arm 554 when moving downwards for a short distance, and the first extension arm 551 and the second extension arm 554 effectively enlarge the moving distance, so that the sliding block 520 can effectively drive the sliding rod 400 to extend upwards and return.
Specifically, the second extending arm 554 and the slide bar 400 are engaged in the following manner (but not limited thereto): the slide bar 400 is provided with a transmission through hole 410, and the transmission through hole 410 penetrates through the slide bar along the radial direction. The second extension arm 554 passes through the drive through hole 410. The second extension arm 554 is provided with a sliding groove 557 arranged along the length direction thereof, the inner wall of the transmission through hole 410 is fixedly provided with a positioning column 420, and the positioning column 420 is slidably fitted to the sliding groove 557. When the second extension arm 554 moves along with the rotation of the rotation shaft 550, the sliding rod 400 can be smoothly jacked up or reset.
In summary, the novel radar signal simulator 1000 with a long service life provided by the embodiment of the invention can effectively reduce adverse effects of an electromagnetic field in a storage environment on the radar signal simulator body 100, reduce the aging speed of internal elements, and effectively guarantee the precision and the service life of the radar signal simulator; compared with a special electromagnetic field prevention warehouse for storage, the electromagnetic field prevention warehouse has the advantages that the cost is greatly reduced, the use is more convenient, the limitation of the position of the electromagnetic field prevention warehouse is avoided, the transferability is stronger, and the universality is stronger.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A novel radar signal simulator with long service life is characterized by comprising: the radar signal simulator comprises a radar signal simulator body and a shielding protective shell;
the shielding protection shell comprises a lower shell and an upper shell; the lower shell is provided with an accommodating cavity for accommodating the radar signal simulator body, and the upper shell and the lower shell are detachably connected so as to seal the accommodating cavity;
the first shielding layer is arranged in the lower shell, the second shielding layer is arranged in the upper shell, and when the upper shell is detachably connected with the lower shell, the first shielding layer and the second shielding layer are electrically connected and surround the accommodating cavity together;
the lower shell is provided with a grounding component which is electrically connected with the first shielding layer;
the grounding assembly includes: the device comprises a first cylinder, a first conductive column, a second conductive column, a first limiting sleeve and a second limiting sleeve;
the first cylinder is connected with the lower shell; one end of the first cylinder is of a closed structure, and the other end of the first cylinder is of an open structure;
the first conductive column is accommodated in the first cylinder; the first conductive column is fixedly matched with the first cylinder along the circumferential direction of the first cylinder; the first conductive column is in sliding fit with the first cylinder along the axial direction of the first cylinder; a first elastic piece is abutted between the end part of the inner end of the first conductive column and the end wall of the first cylinder; the first conductive pillar is electrically connected with the first shielding layer through the second conductive pillar;
the first limiting sleeve is coaxially and fixedly connected to the end part of the first cylinder, and the first conductive column penetrates through the first limiting sleeve;
the first limiting sleeve is provided with a yielding notch, the yielding notch extends towards the first barrel from the end face, far away from the first barrel, of one end of the first limiting sleeve, and the yielding notch penetrates from the outer wall of the first limiting sleeve to the inner wall of the first limiting sleeve;
the second limiting sleeve is sleeved outside the first limiting sleeve; the second limiting sleeve is fixedly matched with the first limiting sleeve along the circumferential direction of the first limiting sleeve; the second limiting sleeve is in sliding fit with the first limiting sleeve along the axial direction of the second limiting sleeve;
the outer wall of the first conductive column is fixedly connected with a first bump, the first bump is slidably matched in the abdicating notch, the second limiting sleeve is provided with a first stop block used for stopping the first bump, and the first stop block is positioned on one side, away from the first barrel, of the first bump;
one end of the second limiting sleeve, which is close to the first barrel, is detachably connected with one end of the first barrel, which is close to the first limiting sleeve.
2. The novel radar signal simulator with the long service life as claimed in claim 1, wherein a second bump is fixedly arranged on the inner wall of the second limiting sleeve, and the second bump is arranged at one end, close to the first cylinder, of the second limiting sleeve; and a second stop block used for stopping the second bump is fixedly arranged on the outer wall of the first limiting sleeve, and the second stop block is positioned on one side, far away from the first barrel, of the second bump.
3. The high life novel radar signal simulator of claim 1, wherein said ground assembly further comprises: a second cylinder;
the second cylinder is perpendicular to the wall surface of the lower shell, the second cylinder is fixedly connected with the lower shell, and the second conductive column is accommodated in the second cylinder;
the first cylinder is connected to one end, far away from the lower shell, of the second cylinder, and the central axes of the first cylinder and the second cylinder are perpendicular and are positioned in the same plane; the first cylinder body is in running fit with the second cylinder body along the circumferential direction of the second cylinder body; the first cylinder is fixedly matched with the second cylinder along the axial direction of the second cylinder;
a first conductive sleeve is fixedly arranged in the first cylinder body, and the first conductive sleeve is sleeved on the first conductive column and electrically connected with the first conductive column; the first conductive column is in sliding fit with the first conductive sleeve along the axial direction of the first conductive column;
the second conductive column penetrates through the side wall of the first cylinder and extends into the first cylinder, and the second conductive column is electrically connected with the first conductive sleeve and is in rotating fit with the first conductive sleeve.
4. The high-service-life novel radar signal simulator of claim 1, wherein the first shielding layer is distributed along the peripheral side wall and the bottom wall of the lower housing, and the second shielding layer is distributed along the peripheral side wall and the top wall of the upper housing.
5. The high-service-life novel radar signal simulator according to claim 1, wherein the lower case is provided with a slide bar which is disposed along a height direction of the lower case and slidably fitted to the lower case;
cushion blocks are arranged at the bottom of the accommodating cavity, and a plurality of cushion blocks are respectively arranged at the corners of the accommodating cavity; the top of the cushion block is provided with a containing groove, a sliding block is slidably matched in the containing groove along the height direction of the cushion block, and a second elastic piece is abutted between the sliding block and the bottom of the containing groove;
a matching through hole is formed in the groove wall of the accommodating groove and penetrates through the outer wall of the cushion block; a rotating shaft is arranged in the matching through hole, and the rotating shaft axis of the rotating shaft is perpendicular to the height direction of the lower shell;
the rotating shaft is fixedly connected with a first extension arm and a second extension arm, the first extension arm extends towards the accommodating groove, the second extension arm extends towards the outside of the cushion block and extends to the bottom end of the sliding rod, and the second extension arm is matched with the sliding rod;
when the radar signal simulator body is placed in the middle of the lower shell, the sliding block is pressed down by the radar signal simulator body, the sliding block toggles the first extension arm to drive the rotating shaft, and the second extension arm moves along with the rotating shaft to jack up the sliding rod.
6. The long-service-life novel radar signal simulator according to claim 5, wherein the sliding rod is made of a conductive material, and a second conductive sleeve is fixedly disposed on the lower housing, and is sleeved on and electrically connected to the sliding rod; the sliding rod is in sliding fit with the second conductive sleeve along the axial direction of the sliding rod;
the second conductive sleeve is electrically connected with the first shielding layer, and when the upper shell is detachably connected with the lower shell, the first shielding layer is electrically connected with the second shielding layer through the sliding rod.
7. The long-service-life novel radar signal simulator as recited in claim 5, wherein said first extension arm and said second extension arm are disposed in parallel and are respectively disposed on two opposite sides of said rotation axis; along the height direction of the lower shell, the first extension arm is connected to the upper half part of the rotating shaft, and the second extension arm is connected to the lower half part of the rotating shaft.
8. The high service life novel radar signal simulator of claim 7, wherein said first extension arm has a first arc-shaped section, said first arc-shaped section is attached to the surface of said rotating shaft and fixedly connected with said rotating shaft; the second extension arm is provided with a second arc-shaped section, and the second arc-shaped section is attached to the surface of the rotating shaft and is fixedly connected with the rotating shaft; the first arc-shaped section and the second arc-shaped section are positioned at two opposite sides of the rotating shaft;
the first arc-shaped section is connected with a first elastic adhesive layer, and the first elastic adhesive layer extends towards one side far away from the second arc-shaped section and is fixedly connected with the hole wall of the matching through hole; the second arc-shaped section is connected with a second elastic adhesive layer, and the second elastic adhesive layer extends towards one side far away from the first arc-shaped section and is fixedly connected with the hole wall of the matching through hole;
when the sliding block does not bear pressure, the first elastic adhesive layer and the second elastic adhesive layer are in a natural state; when the radar signal simulator body is placed into the lower shell, the sliding block is pressed down, and the first elastic adhesive layer and the second elastic adhesive layer are elastically stretched.
9. The novel radar signal simulator with long service life according to claim 7, wherein the slide bar is provided with a transmission through hole, and the transmission through hole penetrates through the slide bar along the radial direction of the slide bar; the second extension arm penetrates through the transmission through hole; the second extension arm is provided with a sliding groove arranged along the length direction of the second extension arm, the inner wall of the transmission through hole is fixedly provided with a positioning column, and the positioning column can be matched with the sliding groove in a sliding mode.
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| CN115649628B (en) * | 2022-11-10 | 2023-03-31 | 成都世源频控技术股份有限公司 | Radar simulator storage device |
| CN115838027B (en) * | 2023-02-17 | 2023-05-12 | 成都世源频控技术股份有限公司 | Modularized radar simulator |
| CN117008070B (en) * | 2023-10-07 | 2023-12-19 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
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