CN216625749U - Signal shielding component and signal shielding equipment - Google Patents
Signal shielding component and signal shielding equipment Download PDFInfo
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- CN216625749U CN216625749U CN202122859675.XU CN202122859675U CN216625749U CN 216625749 U CN216625749 U CN 216625749U CN 202122859675 U CN202122859675 U CN 202122859675U CN 216625749 U CN216625749 U CN 216625749U
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Abstract
The utility model relates to the technical field of radio frequency signal detection, in particular to a signal shielding component and signal shielding equipment. The signal shielding component comprises a support plate of the piece to be detected and a shielding cover, wherein the support plate of the piece to be detected comprises a port which is in line connection with the piece to be detected and is in line connection with a signal detection system, and a groove is arranged on the support plate of the piece to be detected; the shielding case comprises a pressing block, and the pressing block is used for fixing the piece to be detected in the groove in the signal performance detection of the piece to be detected. The utility model also provides a signal shielding device which comprises a buckling device and the signal shielding component. The signal shielding component and the signal shielding equipment provided by the utility model have the advantages of small occupied space, simple structure, low production cost and benefit for mass production, and meanwhile, the box body and the clamp do not need to be operated to pick and place the piece to be detected, so that the time for detecting the signal performance of the piece to be detected is saved.
Description
Technical Field
The utility model relates to the technical field of radio frequency signal detection, in particular to a signal shielding component and signal shielding equipment.
Background
In the production process of radio products, the performance detection of radio frequency signals on the radio products is an essential step. When performing performance detection of radio frequency signals on radio products, it is necessary to shield interference of radio frequency signals in the external environment. At present, there are some solutions for the interference of the radio frequency signal in the external environment during the performance detection of the radio frequency signal, such as: a microwave darkroom, a shielding room, a shielding box and the like.
However, the above solutions also have some problems, such as large occupied space of the microwave darkroom and the shielding room, complex internal structure, high construction cost and incapability of large-scale construction; the equipment cost of the shielding box is low, and when the performance of radio frequency signals is detected on the piece to be detected of the radio product, the shielding box and the clamp in the shielding box need to be opened and closed for multiple times to take and place the piece to be detected, so that the production efficiency of the radio product is limited to a certain extent, and the production cost of the radio product is high.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of large occupied space, complex internal structure, high construction cost, limited production efficiency of radio products, high production cost and the like of the conventional radio frequency signal shielding technology, the embodiment of the utility model provides a signal shielding component and signal shielding equipment.
The signal shielding component provided by the embodiment of the utility model is applied to the detection process of signal performance, and comprises a to-be-detected piece carrier plate and a shielding cover, wherein the to-be-detected piece carrier plate comprises a port which is in line connection with a to-be-detected piece and is in line connection with a signal detection system, a groove is formed in the to-be-detected piece carrier plate and is used for placing the to-be-detected piece, and the to-be-detected piece carrier plate is used for placing the to-be-detected piece and enabling the to-be-detected piece to be in line connection with the signal detection system when the to-be-detected piece is subjected to signal detection; the shield cover is used for right when the piece that awaits measuring carries out signal performance detection, with the piece support plate lock that awaits measuring is used for forming and is used for acceping the piece that awaits measuring and can shield external signal airtight space, the shield cover includes a pressfitting piece, works as the shield cover with the piece support plate lock that awaits measuring is in order to form during airtight space, in the shield cover the pressfitting piece is pressed on the piece that awaits measuring, and then with the piece support plate that awaits measuring the recess cooperation will the piece that awaits measuring is fixed in the recess of the piece support plate that awaits measuring.
The embodiment of the utility model also provides signal shielding equipment which comprises a buckling device and the signal shielding component, wherein the buckling device is connected with the signal shielding component and is used for driving the shielding cover to be buckled with the carrier plate of the piece to be detected when the piece to be detected carries out signal performance detection.
The signal shielding component and the signal shielding device provided by the embodiment of the utility model can shield the interference of radio frequency signals in the external environment when the performance of the radio frequency signals is detected on radio products, have small occupied space, simple structure and low production cost, are beneficial to mass production, do not need to operate the clamp because no clamp is arranged in the signal shielding component, and do not need to open and close the box when the signal performance of the piece to be detected is detected because the signal shielding device does not need to be designed into the box, so that the time for detecting the signal performance of the piece to be detected is saved, and the production cost of the piece to be detected, namely the radio products, is reduced.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below.
Fig. 1 is an overall schematic view of a signal shielding member according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a shielding case in a signal shielding component according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a carrier board of a device under test in a signal shielding component according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a carrier board of a device under test in a signal shielding component according to another embodiment of the present invention;
fig. 5 is a schematic structural diagram of a tray to be tested in a carrier board to be tested of the signal shielding component according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a tray of a device under test in a device under test carrier of a signal shielding component according to another embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, 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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It should also be understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
It should be further understood that the term "signal" as used in the present specification and appended claims refers to radio frequency signals, unless otherwise specified.
The utility model is to be protected by the principle that the signal shielding part completes radio frequency signal shielding, and the specific shape of the signal shielding part is changed according to an actual piece to be detected, wherein the piece to be detected is a radio product to be subjected to radio frequency signal performance detection, and specifically comprises a WIFI/BLE product, a mobile phone, a PAD, a wireless communication module, a router and the like.
Referring to fig. 1 and fig. 2 together, fig. 1 is an overall schematic view of a signal shielding component according to an embodiment of the present invention, and fig. 2 is a schematic structural view of a shielding cover in the signal shielding component according to the embodiment of the present invention:
the signal shielding component 100 is applied to a radio frequency signal performance detection process, and the signal shielding component 100 comprises a to-be-detected piece carrier plate 101 and a shielding case 102; the carrier plate 101 for the piece to be detected comprises a port which is in line connection with the piece to be detected and is in line connection with a signal detection system, a groove A is formed in the carrier plate 101 for the piece to be detected, the groove A is used for placing the piece to be detected, and the carrier plate 101 for the piece to be detected is used for placing the piece to be detected and enabling the piece to be detected to be in line connection with the signal detection system when the signal detection is carried out on the piece to be detected; the shielding case 102 is used for buckling with the to-be-tested piece carrier plate 101 to form a closed space for accommodating the to-be-tested piece and shielding an external signal when the signal performance of the to-be-tested piece is detected.
The shielding case 102 further comprises a pressing block 2011, when the shielding case 102 is buckled with the carrier plate 101 to be tested to form the closed space, the pressing block 2011 in the shielding case 102 is pressed on the to-be-tested piece, and further, the groove A of the carrier plate 101 to be tested is matched, so that the to-be-tested piece is fixed in the groove A of the carrier plate 101 to be tested.
Therefore, in this application, shield radio frequency signal's interference among the external environment when carrying out radio frequency signal's performance detection to the radio product, occupation space is little moreover, simple structure, low in production cost, be favorable to mass production, simultaneously because shield cover 102 still include the pressfitting piece 2011 come with recess A cooperation is right the piece that awaits measuring carries out the centre gripping, consequently need not to set up extra anchor clamps, so also need not right anchor clamps operate the centre gripping or the release that realize the piece that awaits measuring to save the time that the piece signal performance that awaits measuring detected improves detection efficiency.
The circuit connection (including "circuit connection" appearing hereinafter) includes transmission of electrical signals and radio frequency signals, and the circuit connection between the test object carrier plate 101 and the signal detection system includes circuit connection established in a wired manner through wires, flexible circuit boards, pins, and the like.
The port of the carrier plate 101 to be tested, which is connected to the line of the to-be-tested device, may be a pin port, a USB (universal Serial bus) Interface, a Type-C USB Interface, an HDMI (High-Definition Multimedia Interface) Interface, or other physical ports, and the specific port Type is changed according to the actual situation.
The signal detection system can be an external program system for detecting the performance of the radio frequency signal, and the specific signal detection system is flexible according to actual conditions.
The groove a is sufficient to accommodate the object to be tested and has a certain position fixing ability for the object to be tested, and in some embodiments, the shape and size of the groove a are matched with those of the object to be tested. Wherein, the shape and the size of the groove A are matched with the shape and the size of the piece to be detected, and the shape and the size of the groove A can comprise: the shape of the projection of the piece to be measured in the groove A is approximately the same as that of the accommodating space surrounded by the groove A, and the size of the projection of the piece to be measured in the groove A is slightly smaller than that of the accommodating space surrounded by the groove A.
When the shielding cover 102 is fastened with the test object carrier plate 101 to form the enclosed space, the distance between the cover edge of the shielding cover 102 and the periphery of the groove a is smaller than a preset distance. The predetermined distance may be 2mm (millimeter), 3mm, or the like, so that the shielding case 101 may just cover the groove a and be accommodated in the groove a, thereby reducing the size of the shielding case 101.
The external signal is an interference signal which is outside the closed space and influences the signal performance detection of the piece to be detected when the signal performance detection of the piece to be detected is carried out.
As shown in fig. 2, (a) in fig. 2 is a top view of the shield 102 with its mouth facing upward, (B) is a front view of the shield 102 with its mouth facing upward, (c) is a right view of the shield 102 with its mouth facing upward, (d) is a perspective view of the shield 102, and the press-fit block 2011 is connected to the inner wall B of the shield 102, and in some embodiments, as shown in fig. 2, the inner wall B of the shield 102 includes a first inner wall B1 facing the mouth, and the press-fit block 2011 is connected and fixed to the first inner wall B1 of the shield 102. In other embodiments, the connection includes a spring connection, that is, the press-fit block is connected to the first inner wall B1 of the shield enclosure by a spring, the spring is in a compressed state when the shield enclosure 102 is fastened to the dut carrier 101 to form the sealed space, and the spring is in a stretched or restored state when the shield enclosure 102 is separated from the dut carrier 101. The groove a itself has a certain position fixing ability to the piece to be measured, when the press-fit block 2011 in the shield case 102 presses on the piece to be measured, and further cooperates with the groove a, the press-fit block 2011 further fixes the piece to be measured in the groove a.
Therefore, when the signal performance of the to-be-detected piece is detected, the shielding cover 102 and the to-be-detected piece carrier plate 101 are in a buckling state, the shielding cover 102 and the to-be-detected piece carrier plate 101 are buckled to form a closed space for accommodating the to-be-detected piece and shielding an external signal, so that the interference of a radio frequency signal in an external environment is shielded, meanwhile, the to-be-detected piece carrier plate 101 comprises a port which is in line connection with the to-be-detected piece and is in line connection with the to-be-detected piece through the port which is in line connection with the to-be-detected piece, and is in line connection with the signal detection system, so that the to-be-detected piece is in line connection with the signal detection system, and the signal performance of the to-be-detected piece is detected by the signal detection system.
Therefore, the signal shielding component 100 has a simple structure, and the occupied space and the component production cost change correspondingly with the condition of the to-be-tested piece, generally speaking, the occupied space is small, the production cost is low, mass production is facilitated, and meanwhile, when the to-be-tested piece is subjected to signal performance detection, the key for shielding the external signal is the buckling of the shielding cover 102 and the to-be-tested piece carrier plate 101, and a box body does not need to be designed for the shielding cover 102 and the to-be-tested piece carrier plate 101 and the box body does not need to be opened and closed; furthermore, it is right when the piece that awaits measuring carries out signal performance detection, shield 102 with the piece support plate 101 that awaits measuring carries out the lock, through pressfitting piece 2011 with recess A's cooperation can be fixed the piece that awaits measuring need not to aim at the piece that awaits measuring designs anchor clamps and right anchor clamps operate, thereby saves the time that the piece signal performance that awaits measuring detected improves efficiency of software testing to can omit complicated anchor clamps and reduce cost.
With continued reference to figure 2 of the drawings,
the shield case 102 further includes: a metal case 201, a wave absorbing material part (not shown), and a shielding material part C.
The wave-absorbing material part (not shown) is arranged on the whole inner wall B of the metal shell 201 and used for absorbing the signal scattered by the piece to be detected to the inner wall B of the metal shell 201 when the piece to be detected is subjected to signal performance detection, so that the signal scattered by the piece to be detected is prevented from being reflected in the metal shell 201 to cause signal self-interference in the signal performance detection process.
The press-fit block 2011 is specifically an inner wall B connected to the shield case 102 and provided with a wave-absorbing material part.
The shielding material portion C is arranged at the periphery of the shell, which is used for the metal shell 201 and is in buckling contact with the carrier plate 101 to be tested, of the metal shell, and the shielding material portion C is used for right when the signal performance of the to-be-tested piece is detected, preventing the external signal from entering the metal shell 201 and the gap of the buckling contact of the carrier plate 101 to be tested into the metal shell 201, and further shielding the external signal.
Therefore, when in the shield cover 102 the metal casing 201 with when awaiting measuring a carrier plate 101 and being in both lock states, the metal casing 201 can shield most radio frequency signal, shielding material can prevent external signal from following the metal casing 201 with the gap department of awaiting measuring a carrier plate 101 lock contact enters into in the metal casing 201, further shielding external signal, wave-absorbing material absorbs awaiting measuring a scattering to the signal of metal casing 201 inner wall, and then each part provides the environment that a good signal performance detected jointly in the shield cover 102, can not only shield external signal, can absorb simultaneously the signal that probably produces the self-disturbance of awaiting measuring a scattering.
In some embodiments, as shown in fig. 2, the shield can 102 further includes a conductive material portion D. The conductive material portion D is disposed on one side of the press block 2011, which is used for contacting the to-be-tested object, that is, on one side of the inner wall B where the press block 2011 is located.
When the shielding case 102 is in operation, that is, when the signal performance of the to-be-detected element is detected, the shielding case 102 is conducted with the ground, the press-fit block 2011 is in conductive connection with the shielding case 102, the conductive material portion D is in conductive connection with the press-fit block 2011, and further, the conductive material portion D is in indirect conductive connection with the shielding case 102. The conductive material portion D is used for making the shield case 102 and the to-be-detected member grounded by performing conductive connection with the press-fit block and the shield case 102 when the to-be-detected member is subjected to signal performance detection, so as to prevent the press-fit block 2011 from generating electrostatic interference when contacting with the to-be-detected member.
Fig. 3 is a schematic structural diagram of a carrier board of a device under test in a signal shielding component according to an embodiment of the present invention:
as shown in fig. 3, (e) in fig. 3 is a top view of the dut carrier 101, (f) is a front view of the dut carrier 101, (g) is a right side view of the dut carrier 101, and (h) is an isometric view of the dut carrier 101.
The carrier 101 to be tested comprises a tray 301 to be tested and a communication board 302.
Await measuring a tray 301 include with await measuring a port that carries out line connection, be equipped with on the first side E of awaiting measuring a tray 301 recess A, communication board 302 is fixed in await measuring a tray 301 with the relative second side F of first side E, and with await measuring a tray 301 and carry out line connection, await measuring a tray 301 be used for right it carries out signal performance detection time measuring to await measuring, place await measuring a piece, simultaneously pass through with await measuring a port that carries out line connection with await measuring a piece and carry out line connection, so that await measuring a piece with establish line connection between the communication board.
The tray 301 to be tested is made of a non-metal material so as to prevent the to-be-tested piece from interfering with the circuit connection between the to-be-tested piece and the communication board 302 when the to-be-tested piece is placed on the tray 301 to be tested.
The line connection between the communication board 302 and the tray 301 to be tested includes connecting through physical ports such as a pin port, a USB interface, a Type-C USB interface or an HDMI interface, the communication board 302 and the line connection between the signal detection systems includes the line connection established through a wired mode.
In some embodiments, the area of the tray 301 for the dut occupying the communication board 302 is smaller than the area of the opening of the metal shell 201 in the shielding case 102, and the area of the surface of the communication board 302 is larger than the area of the opening of the metal shell 201 in the shielding case 102, so that the metal shell 201 in the shielding case 102 can be fastened with the communication board 302 and form a closed space capable of accommodating the dut.
Therefore, the carrier plate 101 to be tested is placed through the groove A of the carrier plate 301 to be tested in the carrier plate 101 to be tested, and meanwhile, the carrier plate 301 to be tested is connected with the communication plate 302 through a line, when the carrier plate to be tested detects the signal performance of the carrier plate to be tested, the carrier plate 301 to be tested is connected with the carrier plate to be tested through a port connected with the carrier plate to be tested through a line, so that the carrier plate to be tested is connected with the communication plate 302 through a line, and the carrier plate to be tested is connected with the signal detection system through a line. When the piece to be detected and the signal detection system are connected through a line, the signal detection system can receive the radio-frequency signal sent by the piece to be detected and detect the performance of the radio-frequency signal sent by the piece to be detected.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a carrier board of a device under test in a signal shielding component according to another embodiment of the present invention:
as shown in fig. 4, (i) in fig. 4 is a top view of the dut carrier 101 in another embodiment, (j) is a front view of the dut carrier 101 in another embodiment, (k) is a right side view of the dut carrier 101 in another embodiment, and (l) is an isometric view of the dut carrier 101 in another embodiment.
In other embodiments, the dut carrier 101 includes a dut tray 401 and a metal plate 402.
Await measuring a tray 401 include with await measuring a port that carries out line connection, and with signal detection system carries out line connection, await measuring a tray 401 be equipped with on the first side E recess A, metal sheet 402 is fixed in await measuring a tray 401 with first side E is relative second side F, await measuring a tray 401 be used for right await measuring a piece and carry out signal performance detection time measuring, place await measuring a piece, simultaneously with await measuring a piece and carry out line connection, so that await measuring a piece with establish line connection between the signal detection system.
The metal plate 402 is configured to be buckled with the metal shell 201 in the shielding case 102 to form the enclosed space when the signal performance of the to-be-detected piece is detected.
The port of the tray 401 to be tested, which is in line connection with the piece to be tested, can be a physical port such as a pin port, a USB interface, a Type-C USB interface, an HDMI interface, and the specific port Type is changed according to actual conditions.
The tray 401 to be tested is made of a non-metal material so as to prevent the to-be-tested piece from interfering with the line connection between the to-be-tested piece and the signal detection system when the to-be-tested piece is placed on the tray 401 to be tested.
The line connection between the tray 401 to be tested and the signal detection system includes line connection established in a wired manner.
In some embodiments, the ports of the tray 401 for testing the parts to be tested are a plurality of pins and a plurality of wires connected to the pins, the grooves a of the tray 401 for testing have a plurality of through holes penetrating the first side E and the second side F of the tray 401 for testing, the metal plate 402 also has a plurality of through holes penetrating the metal plate 402 and coinciding with the through holes in the grooves a of the tray 401 for testing, the plurality of pins are respectively disposed in the plurality of through holes and penetrate the tray 401 for testing and the metal plate 402, and are respectively connected to the plurality of wires in the through holes of the metal plate 402, wherein the insulating outer layer of the wires is fixed in the through holes of the metal plate 402, and one end of the wires is fixedly connected to the pins, the other end of the guide pin is connected with the signal detection system, one end of the guide pin is fixedly connected with the lead, and the other end of the guide pin is connected with the piece to be detected when the piece to be detected is subjected to signal performance detection, so that line connection is established between the piece to be detected and the signal detection system.
In some embodiments, the area of the tray 401 occupying the metal plate 402 is smaller than the area of the opening of the metal shell 201 in the shielding case 102, and the area of the plate surface of the metal plate 402 is larger than the area of the opening of the metal shell 201 in the shielding case 102, so that the metal shell 201 in the shielding case 102 can be buckled with the metal plate 402, and a closed space capable of accommodating the dut is formed.
Therefore, the carrier plate 101 to be tested is placed in the groove A of the tray 401 to be tested in the carrier plate 101 to be tested, meanwhile, the tray 401 to be tested is in line connection with the signal detection system, when the carrier plate to be tested is subjected to signal performance detection, the tray 401 to be tested is in line connection with the tray to be tested through the port in line connection with the tray to be tested, and therefore line connection is established between the tray to be tested and the signal detection system. When the piece to be detected and the signal detection system are connected through a line, the signal detection system can receive the radio-frequency signal sent by the piece to be detected and detect the performance of the radio-frequency signal sent by the piece to be detected.
Referring to fig. 3 and fig. 5, fig. 5 is a schematic structural diagram of a tray of a device under test in a device under test carrier of a signal shielding component according to an embodiment of the present invention:
the tray 301 to be tested includes: a tray body 501, a line connector 502 and an elastic member 503.
The tray body 501 constitutes a main body of the tray 301 to be tested, the communication board 302 is fixed to the third side G of the tray body 501, a first cylindrical hole (not shown) extending along the direction from the fourth side H of the tray body 501 to the third side G is formed in the tray body 501, and the circuit connecting piece 502 and the elastic element 503 are disposed in the first cylindrical hole (not shown); the third side G of the tray body 501 corresponds to the second side F of the tray to be tested, and the fourth side H of the tray body 501 corresponds to the first side E of the tray to be tested.
The circuit connecting piece 502 is supported in the first cylindrical hole (not shown), and forms the groove a with the tray body 501, the groove a is located on the fourth side H of the tray body 501, the circuit connecting piece 502 includes a port for performing circuit connection with a piece to be tested, and performs circuit connection with the communication board 302, the circuit connecting piece 502 is used for cooperating with the tray body 501 to place the piece to be tested, and performs circuit connection with the piece to be tested simultaneously when detecting the signal performance of the piece to be tested, so that circuit connection is established between the piece to be tested and the communication board 302.
The space occupied by the groove a belongs to the space occupied by the first cylindrical hole (not shown), and the circuit connecting part 502 and the inner wall surface of the first cylindrical hole (not shown) in the tray body 501 form the groove a.
Therefore, the line connecting piece 502 and the groove a formed on the inner wall surface of the first cylindrical hole (not shown) are used for placing the piece to be tested, meanwhile, the line connecting piece 502 in the tray 301 to be tested comprises a port which is in line connection with the piece to be tested and is in line connection with the communication board 302, when the piece to be tested is subjected to signal performance detection, the line connecting piece 502 in the tray 301 to be tested is in line connection with the piece to be tested through the port which is in line connection with the piece to be tested, and therefore line connection is established between the piece to be tested and the communication board 302.
Further, in some embodiments, the line connector 502 includes a slidable post 5021 and a plurality of pins 5022.
The slidable column 5021 is disposed in the first cylindrical hole (not shown) of the tray body 501, a cylindrical surface of the slidable column 5021 is matched with an inner wall surface of the first cylindrical hole (not shown) in the tray body 501, the slidable column 5021 can slide in the first cylindrical hole (not shown) of the tray body 501 relative to the tray body 501, and a sliding direction of the slidable column 5021 relative to the tray body 501 is an extending direction of the first cylindrical hole (not shown); a first end surface of the slidable column 5021 near the third side G of the tray body 501 is supported by an elastic member 503 in the first cylindrical hole (not shown) of the tray body 501, and a second end surface of the slidable column 5021 near the fourth side H of the tray body 501 forms the groove a with the tray body 501 in the tray body 501.
A plurality of leading needle 5022 is made by conducting material, but in the sliding column 5021 have a plurality of to run through the second columnar hole I of sliding column 5021, just the extending direction of second columnar hole I with the direction of first columnar hole (not shown in the figure) is the same, a plurality of leading needle 5022 sets up respectively in a plurality of in the second columnar hole I, the one end of leading needle 5022 respectively with communication board 302 fixed connection, and with communication board 302 carries out the line connection, the other end is in respectively follow in the second columnar hole I the direction that first terminal surface of sliding column 5021 was to the second terminal surface is no longer than the second terminal surface. Wherein the first end surface of the slidable column 5021 is close to the third side G of the tray body 501, and the second end surface is close to the fourth side H of the tray body 501.
The press block 2011 is disposed in the metal housing 201 of the shielding cover 102, and is connected to the metal housing 201 on the side B opposite to the opening in the metal housing 201, when the signal performance of the to-be-detected member is detected, the press block 2011 contacts the to-be-detected member and presses the to-be-detected member, so that the to-be-detected member and the slidable column 5021 slide in the direction from the fourth side H to the third side G of the tray body 501, and further the other end of the leading pin 5022 exceeds the second end surface in the second cylindrical hole I along the direction from the first end surface to the second end surface of the slidable column 5021, and further contacts with the to-be-detected member and is in line connection with the to-be-detected member, at this time, one end of the leading pin 5022 is in line connection with the communication board 302, and the other end is in line connection with the to-be-detected member, thereby enabling a line connection to be established between the piece under test and the communication board 302.
The resilient member 503 comprises a spring, such that the slidable post 5021 in the line connector 502 is supported in the first cylindrical hole (not shown), and the slidable post 5021 can slide in and relative to the first cylindrical hole (not shown).
The relative positions of the needle 5022 and the slidable column 5021 are set as follows: when the slidable cylinder 5021 is in an original installation position, an end of the lead pins 5022 close to the fourth side H of the tray body 501 does not exceed the second end face of the slidable cylinder 5021, and a distance from an end of the lead pins 5022 close to the fourth side H of the tray body 501 to the second end face is smaller than a distance from an end of the lead pins 5022 fixedly connected with the communication board 302 to the first end face, so that when the slidable cylinder 5021 slides in a direction from the fourth side H to the third side G of the tray body 501, an end of the lead pins 5022 close to the fourth side H of the tray body 501 exceeds the second end face in a direction from the first end face to the second end face of the slidable cylinder 5021 within the second cylindrical hole I; when the slidable column 5021 is restored to the original installation position, one end of the guide needle 5022 near the fourth side H of the tray body 501 does not exceed the second end face in the direction in which the first end of the slidable column 5021 faces the second end face within the second cylindrical hole I.
Therefore, the pins 5022 are the pins of the port of the circuit connector 502 of the tray 301 to be tested, which are in circuit connection with the to-be-tested object, the pins 5022 have a circuit connection with the communication board 302 at the end close to the third side G of the tray body 501, the pins 5022 have a circuit connection with the to-be-tested object at the end close to the fourth side H of the tray body 501, and when the to-be-tested object is tested for signal performance, the pins 5022 have a circuit connection with the to-be-tested object at the end close to the fourth side H of the tray body 501, so that the to-be-tested object is in circuit connection with the communication board 302.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a tray of a device under test in a device under test carrier of a signal shielding component according to another embodiment of the present invention:
in some embodiments, the first cylindrical hole (not shown) only penetrates through the fourth side H of the tray body 501, two ends of the elastic element 503 are respectively and fixedly connected to the first end surface of the slidable column 5021 in the line connector 502 and the portion of the tray body 501 close to the third side G, the slidable column 5021 in the line connector 502 is supported in the first cylindrical hole (not shown) through the elastic element 503 fixed to the portion of the tray body 501 close to the third side G, and the line connector 502 is supported in the first cylindrical hole (not shown) through the elastic element 503 fixed to the portion of the tray body 501 close to the third side G.
In other embodiments, referring to fig. 5, the first cylindrical hole (not shown) penetrates through the third side G and the fourth side H of the tray body 501, two ends of the elastic element 503 are respectively and fixedly connected to the first end surface of the slidable column 5021 in the circuit connector 502 and the communication board 302, the slidable column 5021 in the circuit connector 502 is supported in the first cylindrical hole (not shown) through the elastic element 503 fixed on the communication board 302, and the circuit connector 502 is supported in the first cylindrical hole (not shown) through the elastic element 503 fixed on the communication board 302.
In addition, the embodiment of the present invention further provides a signal shielding apparatus, which includes a fastening device and the signal shielding component 100. The buckling device is connected with the signal shielding component 100 and is used for driving the shielding cover 102 in the signal shielding component 100 to be buckled with the carrier plate 101 to be tested when the signal performance of the to-be-tested piece is detected.
In some embodiments, the fastening device is connected to the shielding case 102 in the signal shielding component 100, and is configured to drive the shielding case 102 to move to fasten with the dut carrier 101 when the dut performs signal performance detection.
Further, in some embodiments, the snap fit device includes a mechanical transmission and a connecting member. The connecting part is fixedly connected with the outer side, close to the side B in the figure 2, of the shielding cover, and is also fixedly connected with the mechanical transmission device; the mechanical transmission device is used for enabling the shielding cover 102 to move towards the direction of the carrier plate 101 to be tested and to be buckled through the connecting component, and further enabling a closed space which is used for containing the to-be-tested piece and can shield external signals to be formed between the shielding cover 102 and the carrier plate 101 to be tested.
In some embodiments, the signal shielding device is a semi-automated device, and in other embodiments, the signal shielding device is an automated device. Wherein, the power source of the mechanical transmission device comprises the control of related technical operators and automatic control.
While the utility model has been described with reference to specific embodiments, the utility model is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the utility model. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (11)
1. A signal shielding member for use in a signal performance testing process, said signal shielding member comprising:
the device comprises a to-be-detected piece carrier plate, a signal detection system and a signal processing system, wherein the to-be-detected piece carrier plate comprises a port in line connection with a to-be-detected piece and is in line connection with the signal detection system, a groove is formed in the to-be-detected piece carrier plate and is used for placing the to-be-detected piece, and the to-be-detected piece carrier plate is used for placing the to-be-detected piece and enabling the to-be-detected piece to be in line connection with the signal detection system when the to-be-detected piece is subjected to signal detection;
the shielding cover is used for buckling with the carrier plate of the piece to be detected to form a closed space for accommodating the piece to be detected and shielding an external signal when the signal performance of the piece to be detected is detected;
the shielding case further comprises a pressing block, when the shielding case is buckled with the carrier plate of the piece to be detected to form the closed space, the pressing block in the shielding case is pressed on the piece to be detected, and then is matched with the groove of the carrier plate of the piece to be detected to fix the piece to be detected in the groove of the carrier plate of the piece to be detected.
2. The signal shielding component of claim 1, wherein the shape and size of the groove are adapted to the shape and size of the dut, and when the shielding cover is fastened to the dut carrier plate to form the enclosed space, a distance between a cover edge of the shielding cover and an outer periphery of the groove is smaller than a predetermined distance.
3. The signal shielding component of claim 1, wherein the shield further comprises a metal shell, a wave absorbing material portion, a shielding material portion;
the metal shell forms a shell of the shielding case, one side of the metal shell is provided with an opening, and the metal shell is buckled with the carrier plate of the piece to be detected at the side provided with the opening to form the closed space when the signal performance of the piece to be detected is detected, so that the external signal is shielded;
the wave-absorbing material part is arranged on the whole inner wall of the metal shell and is used for absorbing signals scattered to the inner wall of the metal shell by the piece to be detected when the piece to be detected is subjected to signal performance detection so as to prevent the signals scattered by the piece to be detected from being reflected in the metal shell to cause signal self-interference in the signal performance detection process;
the shielding material part is arranged at the periphery of the shell, which is used for being buckled and contacted with the carrier plate of the piece to be detected, of the metal shell, and the shielding material part is used for further shielding the external signal when the signal performance of the piece to be detected is detected.
4. The signal shielding component of claim 3, wherein the dut carrier plate comprises a dut tray, a communication board;
the tray to be tested comprises a port in line connection with the piece to be tested, the groove is formed in the first side of the tray to be tested, the communication plate is fixed to the second side, opposite to the first side, of the tray to be tested and in line connection with the tray to be tested, the tray to be tested is used for placing the piece to be tested when the signal performance of the piece to be tested is detected, and is in line connection with the piece to be tested, so that line connection is established between the piece to be tested and the communication plate;
the communication board, with signal detection system carries out the line connection, thereby makes await measuring with signal detection system carries out the line connection, the communication board be used for right when awaiting measuring a signal performance detection, with in the shield cover metal casing lock is in order to form airtight space, and pass through the communication board with line connection between the tray that awaits measuring receives the signal that awaits measuring a piece sent, and will await measuring the signal transmission that a piece sent extremely signal detection system.
5. The signal shielding component of claim 3, further characterized in that the dut carrier plate comprises a dut tray, a metal plate;
the tray to be detected comprises a port in line connection with the part to be detected and is in line connection with the signal detection system, the groove is formed in the first side of the tray to be detected, the metal plate is fixed to the second side, opposite to the first side, of the tray to be detected, and the tray to be detected is used for placing the part to be detected and is in line connection with the part to be detected when the signal performance of the part to be detected is detected, so that line connection is established between the part to be detected and the signal detection system;
the metal plate is used for buckling with the metal shell in the shielding case to form the closed space when the signal performance of the piece to be detected is detected.
6. The signal shielding member according to claim 4, wherein the tray to be tested includes a tray body, a line connector, and an elastic member;
the tray body forms a main body of the tray to be tested, the communication board is fixed on the third side of the tray body, a first cylindrical hole extending from the fourth side to the third side of the tray body is formed in the tray body, and the circuit connecting piece and the elastic element are arranged in the first cylindrical hole; wherein the third side of the tray body corresponds to the second side of the tray to be tested, and the fourth side of the tray body corresponds to the first side of the tray to be tested;
the circuit connecting piece is supported in the first cylindrical hole and forms the groove with the tray body, the groove is located on the fourth side of the tray body, the circuit connecting piece comprises a port which is in circuit connection with a piece to be detected and is in circuit connection with the communication board, and the circuit connecting piece is used for being matched with the tray body to place the piece to be detected and is in circuit connection with the piece to be detected when the piece to be detected is subjected to signal performance detection so that circuit connection is established between the piece to be detected and the communication board.
7. The signal shielding member of claim 6, wherein said wire connection member comprises a slidable post and a plurality of pins;
the slidable column is arranged in the first cylindrical hole of the tray body, the cylindrical surface of the slidable column is matched with the inner wall surface of the first cylindrical hole in the tray body, the slidable column can slide in the first cylindrical hole of the tray body relative to the tray body, and the sliding direction of the slidable column relative to the tray body is the extending direction of the first cylindrical hole; a first end surface of the slidable column, which is close to the third side of the tray body, is supported by the elastic element in the first cylindrical hole of the tray body, and a second end surface of the slidable column, which is close to the fourth side of the tray body, forms the groove with the tray body in the tray body;
the plurality of guide pins are made of conductive materials, a plurality of second cylindrical holes penetrating through the slidable cylinder are formed in the slidable cylinder, the extending direction of the second cylindrical holes is the same as the direction of the first cylindrical holes, the plurality of guide pins are respectively arranged in the plurality of second cylindrical holes, one ends of the guide pins are respectively fixedly connected with the communication board and are in line connection with the communication board, and the other ends of the guide pins are respectively not more than the second end face in the second cylindrical holes along the direction from the first end face to the second end face of the slidable cylinder;
the pressing block is arranged in the metal shell of the shielding cover and is connected with the metal shell at the side opposite to the opening in the metal shell, when the signal performance of the piece to be detected is detected, the pressing block is contacted with the piece to be detected, and pressing the piece to be tested to slide the piece to be tested and the slidable column along the direction from the fourth side to the third side of the tray body, thereby causing the other end of the needle to pass beyond the second end face in the direction of the first end face of the slidable cylinder toward the second end face within the second cylindrical hole, and then the contact with the piece to be tested and the line connection with the piece to be tested are carried out, at the moment, one end of the guide pin is in line connection with the communication board, and the other end of the guide pin is in line connection with the piece to be tested, so that the line connection is established between the piece to be tested and the communication board.
8. The signal shielding member according to claim 7, wherein the first cylindrical hole penetrates the third side and the fourth side of the tray body or the first cylindrical hole penetrates only the fourth side of the tray body;
when the first cylindrical hole penetrates through the third side and the fourth side of the tray body, two ends of the elastic element are respectively and fixedly connected to the first end face of the slidable column in the circuit connecting piece and the communication board, the slidable column in the circuit connecting piece is supported in the first cylindrical hole through the elastic element fixed on the communication board, and then the circuit connecting piece is supported in the first cylindrical hole through the elastic element fixed on the communication board;
when the first cylindrical hole only penetrates through the fourth side of the tray body, two ends of the elastic element are respectively and fixedly connected to the first end face of the slidable column in the circuit connecting piece and the part, close to the third side, of the tray body, the slidable column in the circuit connecting piece is supported in the first cylindrical hole through the elastic element fixed to the part, close to the third side, of the tray body, and then the circuit connecting piece is supported in the first cylindrical hole through the elastic element fixed to the part, close to the third side, of the tray body.
9. The signal shielding member of claim 7, wherein the shield further comprises a conductive material portion;
the conductive material part is arranged on one side of the pressing block, which is used for being in contact with the piece to be detected, and is used for preventing the pressing block from generating electrostatic interference when the pressing block is in contact with the piece to be detected when the signal performance of the piece to be detected is detected.
10. A signal shielding device, characterized in that it comprises snap means and a signal shielding component according to any of claims 1-9;
the buckling device is connected with the signal shielding component and used for driving the shielding cover to be buckled with the carrier plate of the piece to be detected when the piece to be detected carries out signal performance detection.
11. The signal shielding apparatus according to claim 10, wherein the fastening device is connected to the shielding cover of the signal shielding component, and configured to drive the shielding cover to move when the dut performs signal performance detection, so as to fasten the dut to the carrier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859675.XU CN216625749U (en) | 2021-11-18 | 2021-11-18 | Signal shielding component and signal shielding equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122859675.XU CN216625749U (en) | 2021-11-18 | 2021-11-18 | Signal shielding component and signal shielding equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216625749U true CN216625749U (en) | 2022-05-27 |
Family
ID=81697194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122859675.XU Active CN216625749U (en) | 2021-11-18 | 2021-11-18 | Signal shielding component and signal shielding equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216625749U (en) |
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2021
- 2021-11-18 CN CN202122859675.XU patent/CN216625749U/en active Active
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