CN115407144A - Automatic testing arrangement of shielded cell isolation - Google Patents

Automatic testing arrangement of shielded cell isolation Download PDF

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Publication number
CN115407144A
CN115407144A CN202211010076.3A CN202211010076A CN115407144A CN 115407144 A CN115407144 A CN 115407144A CN 202211010076 A CN202211010076 A CN 202211010076A CN 115407144 A CN115407144 A CN 115407144A
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China
Prior art keywords
shielding box
frame
fixing frame
horn antenna
platform
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Granted
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CN202211010076.3A
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Chinese (zh)
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CN115407144B (en
Inventor
魏善磊
徐伟
唐朝亮
徐欢夏
唐朝阳
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Jiangsu Liankang Information Co ltd
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Jiangsu Liankang Information Co ltd
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Priority to CN202211010076.3A priority Critical patent/CN115407144B/en
Publication of CN115407144A publication Critical patent/CN115407144A/en
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Publication of CN115407144B publication Critical patent/CN115407144B/en
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/001Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

The invention discloses an automatic testing device for isolation of a shielding box, which comprises a testing frame, the shielding box and a PCB antenna assembly, wherein a region platform to be tested is arranged in the testing frame, a rotating platform is arranged on one side of the region platform to be tested, an outlet region platform is arranged on one side of the rotating platform, a motor driving module is arranged at the top of the testing frame, and a manipulator assembly is arranged on the motor driving module; the invention has the beneficial effects that: the method has the advantages of high efficiency, reliability, low cost, low noise, no pollution and no need of manual test for shielding box isolation degree test.

Description

Automatic testing arrangement of shielded cell isolation
Technical Field
The invention relates to the technical field of shielding boxes, in particular to an automatic testing device for isolation of a shielding box.
Background
With the development of wireless technology, the problem of electromagnetic interference is becoming more and more prominent, so in order to avoid electromagnetic interference, technical personnel in the communication field invent shielding boxes, which are metal bodies for inhibiting radiation interference and processing conduction and radiation by utilizing shielding bodies with various shapes made of conductive or magnetic conductive materials to limit electromagnetic capability within a certain space range, so as to realize equipment for providing an interference-free testing environment for tested wireless communication equipment. The shielding box is mainly suitable for testing wireless products, such as mobile phones, wireless network cards, wireless data cards, wireless routers, WIFI and other related products. With the development of the communication field, the scenes generating corresponding electromagnetic interference are varied, and not only is the shielding effect good, but also the unmanned automatic operation process can be achieved.
The performance quality of the shielding box depends on the isolation degree, the isolation degree test of the traditional shielding box is manually controlled, the test effect is poor, the efficiency is low, the operation is complex, the cost and the manual loss are increased in the repeated test process, and the accuracy is low.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic testing device for isolation of a shielding box, which aims to: the shielding box isolation degree testing device solves the problems that the isolation degree of the traditional shielding box is slow in speed and troublesome to operate, the flow is complex, the efficiency is low, and the like, and is more efficient, more reliable, low in cost, low in noise, pollution-free and free of manual testing.
The invention realizes the purpose through the following technical scheme:
the utility model provides an automatic testing arrangement of shielded cell isolation, includes test frame, shielded cell and PCB antenna module, be equipped with the regional platform of examination in the test frame, the regional platform one side of examination is equipped with rotary platform, rotary platform one side is equipped with exit region platform, the test frame top is equipped with motor drive module, the last manipulator subassembly that is equipped with of motor drive module, the manipulator subassembly passes through the transmission of motor drive module, test frame one side is equipped with the extension rod, extension rod one side is equipped with control cylinder, control cylinder passes through the extension rod with test frame fixed connection, control cylinder telescopic link one end is equipped with the connecting block, the connecting block below is equipped with first horn antenna mount, first horn antenna mount one end is equipped with first horn antenna, the first horn antenna mount other end is equipped with second horn antenna mount, second horn antenna mount one end is equipped with the second horn antenna, the second horn antenna locate directly over the rotary platform and horn end orientation rotary platform, first horn antenna locates rotary platform one side, PCB includes fixed support plate, braced frame, power device, transmission device, control panel and PCB antenna assembly.
Furthermore, the periphery of the area platform to be tested and the outlet area platform are provided with positioning grooves, and the bottom of the rotating platform is provided with a rotating motor.
Furthermore, first horn antenna mount with second horn antenna mount is the T type, first horn antenna mount with second horn antenna mount fixed connection, first horn antenna mount volume is greater than second horn antenna mount.
Further, the control panel with power device locates PCB antenna below, and with braced frame fixed connection, transmission is the L type, transmission includes mount and clamping part, the mount with the clamping part junction is equipped with the axis of rotation, the mount with the clamping part passes through the axis of rotation is connected, PCB antenna with clamping part fixed connection, the clamping part accessible the axis of rotation carries out ninety degrees rotations, power device is servo motor, the power device rotation axis with mount one end fixed connection, transmission passes through power device drives.
Furthermore, a fixed carrier plate is arranged in the shielding box, a fine positioning column is arranged on the fixed carrier plate, a positioning hole is formed in the bottom of the supporting frame, and the supporting frame can be connected with the fine positioning column through the positioning hole.
Furthermore, a buckle fixing block is arranged in the fixing frame, a buckle is arranged in the buckle fixing block, the clamping portion is close to one side of the fixing frame, a bayonet is arranged on the other side of the fixing frame, and the supporting frame is close to one side of the fixing frame, and a U-shaped cam is arranged on the other side of the fixing frame.
A placing groove is formed in one side of the top of the testing frame, and a drag chain is arranged in the placing groove.
Furthermore, the test frame outside is equipped with network analyzer and control computer, the PCB antenna passes through the SMA adapter and is connected with network analyzer, be equipped with interior USB interface and outer USB interface on the shielding case, the control panel pass through the USB patch cord with USB interface connection in the shielding case, the outer USB interface of shielding case passes through the USB patch cord and is connected with the control computer.
Compared with the prior art, the invention has the following beneficial effects:
1. the power device placed in the shielding box is controlled by upper computer software of a computer, the upper computer software controls a control panel arranged on a PCB assembly in the shielding box, a PCB antenna in the shielding box is controlled by the upper computer software and can rotate to each direction required by a test, the shielding box is rotated to each different direction by the rotation of a rotating platform outside the shielding box, the tested horn antenna can be moved to different positions by the automatic control of an air cylinder when the test and the test are finished, the horn antenna can be placed at a proper test position of the shielding box when the test is finished, and the rotation of the shielding box cannot be influenced when the test is finished, so that the test time is reduced;
2. the test position of the antenna is controlled by the software of the upper computer to be fast to replace, the position of the PCB antenna does not need to be manually adjusted, the position of the horn antenna and the position of the shielding box do not need to be manually rotated, the direction of the PCB antenna needs to be adjusted by opening the shielding box every time one direction is tested, 20 minutes of test time is needed for completing one complete isolation test, the PCB antenna is automatically rotated to the needed direction through the software of the upper computer at present, the shielding box does not need to be opened during the test, only 5 minutes are needed for completing the one complete isolation test through the automatic test, the test time is greatly saved, and the test efficiency is improved.
3. Through the inside PCB antenna rotation of host computer software control shielded cell, rotary platform on the test frame rotates to and two horn antenna's removal, its scheme reliability is high, easy operation, and efficiency is higher, characteristics such as application scope is extensive.
The PCB antenna is simple with the power device installation, and the shielded cell position is put accurately, and horn antenna position automatic movement, the easy operation, the direction is accurate, and the reliability is high, and shielded cell, PCB antenna, horn antenna, position need not manually can easily realize through host computer software during the test.
5. The power device in the shielding box is arranged below the PCB antenna, when the PCB antenna rotates to all directions, the power device is always positioned below the PCB antenna, and the control panel can not generate any influence on the testing of the isolation degree by controlling the rotation of the motor in the isolation degree testing process.
And 6, the PCB antenna control circuit and the RF circuit are independently separated, so that the upper computer software can not interfere with the RF signal of the PCB antenna when controlling the PCB antenna to rotate in the shielding box isolation test process, and the accuracy of automatic test data is ensured.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a perspective view of a test frame;
FIG. 3 is a side view of a test frame;
fig. 4 is a schematic structural view of the control cylinder, the connecting block, the first horn antenna fixing frame and the second horn antenna fixing frame;
FIG. 5 is a schematic diagram of the shield case and PCB antenna assembly;
FIG. 6 is a perspective view of a PCB antenna assembly;
FIG. 7 is another angular perspective view of the PCB antenna assembly;
FIG. 8 is a side view of a PCB antenna assembly;
FIG. 9 is an exploded view of a PCB antenna assembly;
FIG. 10 is an enlarged view of portion A;
FIG. 11 is a schematic diagram of a wiring connection;
in the figure: the method comprises the following steps of 1-testing a frame, 2-shielding boxes, 3-PCB antenna assemblies, 4-to-be-tested region platforms, 5-rotating platforms, 6-outlet region platforms, 7-manipulator assemblies, 8-extension rods, 9-control cylinders, 10-connecting blocks, 11-first horn antenna fixing frames and 12-second horn antenna fixing frames;
the device comprises a motor driving module 1a, a placing groove 1b, a drag chain 1c, a fixed support plate 2a, a fine positioning column 2b, a supporting frame 3a, a power device 3b, a transmission device 3c, a control panel 3d, a PCB antenna 3e, a positioning hole 3f, a fixing block 3g, a bayonet 3h, a U-shaped cam 3i, a positioning groove 4a and a rotating motor 5 a; 3 ca-fixing frame, 3 cb-clamping part, 3 cc-rotating shaft and 3 ga-buckle.
Detailed Description
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.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Referring to fig. 1, an automatic testing device for shielding box isolation comprises a testing frame 1, the testing frame 1 is used for carrying a manipulator assembly 7 and a testing assembly to test the isolation of a shielding box 2, the shielding box 2 is a main product for testing the isolation, a PCB antenna assembly 3 is placed in the shielding box 2 and tested for isolation with the testing assembly on the testing frame 1, the test result is recorded by a network analyzer and a computer and intelligently controlled to replace manual work, a to-be-tested area platform 4 is arranged in the testing frame 1, a rotating platform 5 is arranged on one side of the to-be-tested area platform 4, an outlet area platform 6 is arranged on one side of the rotating platform 5, a motor driving module 1a is arranged on the top of the testing frame 1, the manipulator assembly 7 is arranged on the motor driving module 1a, the manipulator assembly 7 is driven by the motor driving module 1a, the motor driving module 1a drives the manipulator assembly 7 to clamp and take a shielding box in a testing process, an extension rod 8 is arranged on one side of the testing frame 1, a control cylinder 9 is arranged on one side of the extension rod 8, the control cylinder 9 is fixedly connected with the testing frame 1 through the extension rod 8, a connecting block 10 is arranged at one end of a telescopic rod of the control cylinder 9, a first horn antenna fixing frame 11 is arranged below the connecting block 10, a first horn antenna 11a is arranged at one end of the first horn antenna fixing frame 11, a second horn antenna fixing frame 12 is arranged at the other end of the first horn antenna fixing frame 11, a second horn antenna 12a is arranged at one end of the second horn antenna fixing frame 12, the second horn antenna 12a is arranged above the rotating platform 5, the horn end faces the rotating platform 5, the first horn antenna 11a is arranged on one side of the rotating platform 5, the PCB antenna assembly 3 comprises a supporting frame 3a, a power device 3b, a transmission device 3c, A control board 3d and a PCB antenna 3e.
Referring to fig. 2-4, positioning grooves 4a are disposed around the area platform 4 to be tested and the exit area platform 6, the positioning grooves 4a are used for positioning and limiting the shielding box 2, so that when the shielding box 2 is placed in the positioning grooves 4a, the robot assembly 7 can be accurately clamped and taken, and the rotating motor 5a is disposed at the bottom of the rotating platform 5 to drive the rotating platform 5.
First horn antenna mount 11 and second horn antenna mount 12 are the T type, first horn antenna mount 11 and second horn antenna mount 12 fixed connection, and first horn antenna mount 11 volume is greater than second horn antenna mount 12, and first horn antenna 11a and second horn antenna 12a are towards two directions respectively and perpendicular each other, fix through first horn antenna mount 11 and second horn antenna mount 12.
Referring to fig. 5-10, the control board 3d and the power device 3b are disposed below the PCB antenna 3e and fixedly connected to the supporting frame 3a, the transmission device 3c is L-shaped, the transmission device 3c includes a fixing frame 3ca and a clamping portion 3cb, a rotating shaft 3cc is disposed at a connection position of the fixing frame 3ca and the clamping portion 3cb, the fixing frame 3ca is connected to the clamping portion 3cb through the rotating shaft 3cc, the PCB antenna 3e is fixedly connected to the clamping portion 3cb, the clamping portion 3cb can rotate ninety degrees through the rotating shaft 3cc, the power device 3c is a servo motor, the rotating shaft of the power device 3b is fixedly connected to one end of the fixing frame 3ca, and the transmission device 3c is driven by the power device 3 b.
The shielding box 2 is provided with a fixed carrier plate 2a, the fixed carrier plate 2a is provided with a fine positioning column 2b, the bottom of the supporting frame 3a is provided with a positioning hole 3f, the supporting frame 3a can be connected with the fine positioning column 2b through the positioning hole 3f, and the PCB assembly 3 is fixed in the shielding box 2 by being inserted into the fixed carrier plate 2 a.
The fixing frame 3ca is internally provided with a buckle fixing block 3g, the buckle fixing block 3g is internally provided with a buckle 3ga, the clamping part 3cb is provided with a bayonet 3h close to the fixing frame 3ca, the supporting frame 3a is provided with a U-shaped cam 3i close to the fixing frame 3ca, and the U-shaped cam 3i is positioned in the direction of 10 degrees of anticlockwise rotation of the buckle 3 ga.
A placing groove 1b is formed in one side of the top of the testing frame 1, and a drag chain 1c is arranged in the placing groove 1 b.
Referring to fig. 11, a network analyzer and a control computer are disposed outside the test frame 1, the PCB antenna 3f is connected to the network analyzer through an SMA adapter, the shielding box 2 is provided with an inner USB interface and an outer USB interface, the control board 3e is connected to the inner USB interface of the shielding box 2 through a USB patch cord, and the outer USB interface of the shielding box 2 is connected to the control computer through a USB patch cord.
The working principle and the using method are as follows:
s1, placing the PCB antenna assembly 3 into the shielding box 2, enabling the PCB antenna assembly 3 to be close to the power device 3b and face the back face of the shielding box 2, and closing a door of the shielding box 2 to enable the shielding box 2 to be closed.
S2, the shielding box 2 is placed on the platform 4 of the area to be tested, the back of the shielding box 2 faces to the second horn antenna 11a side, the manipulator assembly 7 of the testing frame 1 is controlled to grab the shielding box 2 placed on the platform 4 of the area to be tested through upper computer software on a computer, the manipulator assembly 7 ascends to lift the shielding box 2 to be tested and moves to the rotary platform 5, then the manipulator assembly 7 loosens the clamping of the shielding box 2 and moves to one side of the testing frame 1 to exit the testing area, the first horn antenna 11a and the second horn antenna 12a are driven by the control cylinder 9 to be far away from the rotary platform 5 and contract to enable the first horn antenna 11a and the second horn antenna to leave the testing area for preparation.
S3, a first surface test is carried out, the control cylinder 9 pushes the first horn antenna fixing frame 11 and the second horn antenna fixing frame 12 to approach one surface of the rotary platform 5, when the second horn antenna 12a is positioned right above the shielding box 2 and the first horn antenna 11a approaches the back surface of the shielding box 2, the control cylinder 9 stops pushing, the upper computer software is clicked through a computer to start the test, the power device 3b in the tested shielding box 2 starts to work, the power device 3b is connected with the PCB antenna 3e for testing the isolation degree, the PCB antenna 3e on the device is buckled through a buckle 3ga on the fixing frame 3ca, the initial test direction of the PCB antenna 3e faces the back surface of the shielding box 2, the upper computer software controlled by the computer is opened to start the click, the test software starts to test the isolation degree of the back surface of the shielding box 2, after the test is finished, the upper computer software can display the test result of the isolation degree of the back surface of the shielding box 2 for observation and recording, and the first horn antenna 11a moves away from the shielding degree test area through the control cylinder 9 to prepare for the second surface test.
S6, second side test, power device 3b continues to work, power device 3b drives PCB antenna 3f clockwise rotation 90 degrees, PCB antenna is towards 4 directions of the regional platform of awaiting measuring, simultaneously, rotary platform 5 on test frame 1 anticlockwise rotation 90 degrees, rotary platform 5 rotates and drives shielded box 2 anticlockwise rotation 90 degrees, shielded box 2 is turned to the one side of the regional platform 4 of awaiting measuring and is turned to the one side towards first horn antenna 11a originally, after the rotation is accomplished, control cylinder 9 drives first horn antenna 11a and second horn antenna 12a to reset, when horn antenna reachs shielded box 2 test position, test software begins to test shielded box 2 second side isolation, the test of second side isolation host computer display shielded box 2 second side isolation test result has been tested, first horn antenna 11a and second horn antenna 12a pass through control cylinder 9 and remove and leave shielded box 2 test area. Adopt same mode test shielded cell 2's third face and fourth face isolation, PCB subassembly 3 anticlockwise rotation 90 at every turn is towards shielded cell 2 new not having the one side tested through the isolation promptly, rethread shielded cell 2 clockwise rotation 90 will await measuring one side orientation control cylinder 9 one side, control first horn antenna 11a and second horn antenna 12a through control cylinder 9 and measure.
S7, testing the top surface of the shielding box 2 on the fifth surface, testing the isolation of the four surfaces of the shielding box, starting to test the isolation of the top surface of the shielding box 2, driving the PCB antenna 3f to rotate by 280 degrees through the power device 3b, driving the PCB antenna 3f to rotate through the transmission device 3c, when the transmission device 3c rotates to 280 degrees, the buckle 3ga on the fixed frame 3ca touches the U-shaped cam 3i at the bottom of the fixed frame 3ca, the buckle 3ga bounces upwards to be separated from the bayonet 3h, at the moment, the clamping part 3cb drives the PCB antenna 3e to bounce by 90 degrees around the rotating shaft 3cc to the surface 3ca far away from the fixed frame, so that the clamping part 3cb and the PCB antenna 3f are erected vertically, then, the transmission device 3c rotates by 10 degrees anticlockwise and is reset to the initial direction, testing the top surface of the shielding box 2 on the fifth surface is carried out, displaying the testing result of the front isolation of the shielding box 2 on the upper surface after testing, and at the moment, completely testing the isolation of the shielding box 5.
And S8, preparing after the test is finished, clamping and transporting the tested shielding box 2 to the outlet platform area 6 through the manipulator assembly 7, and transporting the shielding box out.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. An automatic testing device for shielding box isolation comprises a testing frame (1), a shielding box (2) and a PCB antenna assembly (3), wherein a region platform (4) to be tested is arranged in the testing frame (1), a rotary platform (5) is arranged on one side of the region platform (4) to be tested, an outlet region platform (6) is arranged on one side of the rotary platform (5), a motor driving module (1 a) is arranged at the top of the testing frame (1), a mechanical arm assembly (7) is arranged on the motor driving module (1 a), the mechanical arm assembly (7) is driven by the motor driving module (1 a), an extension rod (8) is arranged on one side of the testing frame (1), a control cylinder (9) is arranged on one side of the extension rod (8), the control cylinder (9) is fixedly connected with the testing frame (1) through the extension rod (8), a connecting block (10) is arranged at one end of a telescopic rod of the control cylinder (9), a first horn antenna fixing frame (11) is arranged below the connecting block (10), a first horn antenna fixing frame (11) is provided with a second horn antenna fixing frame (12), second horn antenna (12 a) are located rotary platform (5) top and loudspeaker end orientation rotary platform (5), first horn antenna (11 a) are located rotary platform (5) one side, PCB antenna module (3) include braced frame (3 a), power device (3 b), transmission (3 c), control panel (3 d) and PCB antenna (3 e).
2. The automatic testing device for the isolation degree of the shielding box according to claim 1 is characterized in that positioning grooves (4 a) are formed in the peripheries of the platform (4) of the area to be tested and the platform (6) of the outlet area, and a rotating motor (5 a) is arranged at the bottom of the rotating platform (5).
3. The automatic testing device for the isolation degree of the shielding box according to claim 1, wherein the first horn antenna fixing frame (11) and the second horn antenna fixing frame (12) are T-shaped, the first horn antenna fixing frame (11) is fixedly connected with the second horn antenna fixing frame (12), and the volume of the first horn antenna fixing frame (11) is larger than that of the second horn antenna fixing frame (12).
4. The automatic shielding box isolation testing device according to claim 1, wherein the control board (3 d) and the power device (3 b) are arranged below the PCB antenna (3 e) and fixedly connected with the supporting frame (3 a), the transmission device (3 c) is L-shaped, the transmission device (3 c) comprises a fixing frame (3 ca) and a clamping portion (3 cb), a rotating shaft (3 cc) is arranged at the joint of the fixing frame (3 ca) and the clamping portion (3 cb), the fixing frame (3 ca) and the clamping portion (3 cb) are connected through the rotating shaft (3 cc), the PCB antenna (3 e) is fixedly connected with the clamping portion (3 cb), the clamping portion (3 cb) can rotate through the rotating shaft (3 cc) by a certain degree, the power device (3 c) is a servo motor, the rotating shaft of the power device (3 b) is fixedly connected with one end of the fixing frame (3 ca), and the transmission device (3 c) drives the driving device (3 b) to drive the power device.
5. The automatic testing device for the isolation degree of the shielding box according to claim 1, wherein a fixed carrier plate (2 a) is arranged in the shielding box (2), a fine positioning column (2 b) is arranged on the fixed carrier plate (2 a), a positioning hole (3 f) is arranged at the bottom of the supporting frame (3 a), and the supporting frame (3 a) can be connected with the fine positioning column (2 b) through the positioning hole (3 f).
6. The automatic testing device for the isolation degree of the shielding box according to claim 4 is characterized in that a buckle fixing block (3 g) is arranged in the fixing frame (3 ca), a card (3 ga) is arranged in the buckle fixing block (3 g), a bayonet (3 h) is arranged on one surface, close to the fixing frame (3 ca), of the clamping portion (3 cb), a U-shaped cam (3 i) is arranged on one surface, close to the fixing frame (3 ca), of the supporting frame (3 a), and the U-shaped cam (3 i) is located in a direction of 10 degrees of anticlockwise rotation of the buckle (3 ga).
7. The automatic testing device for the isolation degree of the shielding box according to claim 1 is characterized in that a placing groove (1 b) is formed in one side of the top of the testing frame (1), and a drag chain (1 c) is arranged in the placing groove (1 b).
8. The automatic testing device for the isolation degree of the shielding box according to claim 1 is characterized in that a network analyzer and a control computer are arranged outside the testing frame (1), the PCB antenna (3 f) is connected with the network analyzer through an SMA adapter, an inner USB interface and an outer USB interface are arranged on the shielding box (2), the control panel (3 e) is connected with the inner USB interface of the shielding box (2) through a USB patch cord, and the outer USB interface of the shielding box (2) is connected with the control computer through a USB patch cord.
CN202211010076.3A 2022-08-23 2022-08-23 Automatic testing device for isolation degree of shielding box Active CN115407144B (en)

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CN115407144A true CN115407144A (en) 2022-11-29
CN115407144B CN115407144B (en) 2023-09-22

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CN113655255A (en) * 2021-08-17 2021-11-16 深圳市精泰达科技有限公司 Efficient multi-functional automatic test shielded cell
CN114599220A (en) * 2022-02-11 2022-06-07 深圳市百泰实业股份有限公司 Automatic shielding box of manipulator
CN216926888U (en) * 2021-12-29 2022-07-08 吴洪斌 Intelligent automatic preheating test shielding machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000340433A (en) * 1999-06-01 2000-12-08 Hioki Ee Corp Magnetic shield structure for current converter for measuring instrument
US20060232491A1 (en) * 2005-04-18 2006-10-19 Anritsu Corporation Electromagnetic wave shield box
JP2018056235A (en) * 2016-09-27 2018-04-05 富士通コンポーネント株式会社 Shield case and electronic device
CN210051801U (en) * 2019-03-19 2020-02-11 广东金龙东创智能装备有限公司 Test shielding box
CN112433111A (en) * 2020-10-27 2021-03-02 苏州菲利波电磁技术有限公司 Electric automobile wireless charging radiation emission test rack
CN113655255A (en) * 2021-08-17 2021-11-16 深圳市精泰达科技有限公司 Efficient multi-functional automatic test shielded cell
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