CN210051801U - Test shielding box - Google Patents
Test shielding box Download PDFInfo
- Publication number
- CN210051801U CN210051801U CN201920348403.3U CN201920348403U CN210051801U CN 210051801 U CN210051801 U CN 210051801U CN 201920348403 U CN201920348403 U CN 201920348403U CN 210051801 U CN210051801 U CN 210051801U
- Authority
- CN
- China
- Prior art keywords
- test
- front door
- box
- fixed frame
- shielding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The utility model discloses a test shielding box, which comprises a test carrier, wherein the test carrier is rotationally connected with a first fixed frame, and the first fixed frame is rotationally connected with a second fixed frame; the test carrier is further connected with a first rotary driving piece for driving the test carrier to rotate around a first rotating shaft, and the first fixed frame is further connected with a second rotary driving piece for driving the first fixed frame to rotate around a second rotating shaft; the first rotary driving piece is fixedly connected with the first fixing frame, and the second rotary driving piece is fixedly connected with the second fixing frame. The utility model provides a test shielded cell utilizes first rotary driving piece drive test carrier to encircle first rotation axis rotation, utilizes the first fixed frame of second rotary driving piece drive to take the first rotary driving piece of test carrier rotatory to make the test carrier can follow two directions and rotate, and then reach the purpose that only needs an antenna can accomplish the test, the antenna that needs is small in quantity, saves the cost, and it is more accurate to make the test.
Description
Technical Field
The utility model relates to a radio frequency test field especially relates to a test shielded cell.
Background
In the field of radio frequency testing in the current market, the highest testing frequency of a common shielding box can only reach 6GHz, an antenna is generally arranged at a plurality of angles around a product to be tested for testing, the testing direction angle precision is low, a plurality of antennas are needed, and the cost is high. When the mobile communication product is about to enter 5G test business, and the fifth generation mobile communication product is tested, the testing frequency band is higher, and the requirement is stricter. At present, a shielding box and an antenna with the testing frequency only reaching 6GHz cannot meet the testing requirements of millimeter-wave band products of fifth-generation mobile communication.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a test shielded cell solves the problem that needs a plurality of antennas to accomplish the test.
To achieve the purpose, the utility model adopts the following technical proposal:
a test shielding box comprises a test carrier, wherein the test carrier is rotatably connected with a first fixed frame, and the first fixed frame is rotatably connected with a second fixed frame; the test carrier is further connected with a first rotary driving piece for driving the test carrier to rotate around a first rotating shaft, and the first fixed frame is further connected with a second rotary driving piece for driving the first fixed frame to rotate around a second rotating shaft;
the first rotary driving piece is fixedly connected with the first fixing frame, and the second rotary driving piece is fixedly connected with the second fixing frame.
Optionally, the test shielding box further comprises a box body, the box body is hollow to form a test cavity, the test carrier is located in the test cavity during testing, and a box body wave absorbing layer is fixedly arranged on the inner wall of the test cavity;
the fixed frame of second is connected with the translation driving piece that has its translation of drive, the fixed antenna that is equipped with in test cavity.
Optionally, a front opening for the test carrier to enter and exit the test chamber is formed in the first surface of the box body, and a front door is arranged at the front opening; the front door is fixedly connected with a sliding rod, and the sliding rod is connected with the box body in a sliding manner through a linear bearing; the second fixing frame is fixedly connected with the front door, and a translation driving rod of the translation driving piece is fixedly connected with the front door;
and a front door wave absorbing layer is arranged on one surface of the front door facing the test cavity.
Optionally, the second fixing frame is a U-shaped fixing frame, and the opening of the U-shaped fixing frame is fixedly connected with the front door; the second rotary driving piece is fixedly connected with the front door and is positioned in the second fixed frame;
the first fixed frame is positioned in the second fixed frame; the first edge of the first fixed frame is fixedly connected with the driving rod of the second rotary driving piece, and the second edge of the first fixed frame is rotatably connected with the second fixed frame;
the test carrier is positioned in the center of the first fixed frame, and two opposite sides of the test carrier are respectively and rotatably connected with the third edge and the fourth edge of the first fixed frame;
the first edge and the second edge of the first fixing frame are two opposite edges, and the third edge and the fourth edge are two opposite edges.
Optionally, the driving rod of the first rotary driving member is fixedly connected with a driving wheel, a transmission belt is tensioned on the driving wheel, and one end of the transmission belt, which is far away from the driving wheel, is tensioned on a driven wheel; and a carrier rotating rod is arranged on the test carrier, and penetrates through the third edge/the fourth edge of the first fixed frame to be fixedly connected with the driven wheel.
Optionally, a front door sealing groove for accommodating a front door shielding sealing gasket is formed in an edge portion of one surface of the front door facing the test chamber, and the front door shielding sealing gasket is fixed in the front door sealing groove;
the box orientation the part of the edge portion of qianmen offers the preceding box seal groove that is used for holding preceding box shielding sealing gasket, preceding box shielding sealing gasket is located in the preceding box seal groove.
Optionally, the front door includes a first front door panel for sealing the front opening, and the second fixing frame is fixedly connected to the first front door panel; one side of the first front door panel, which is away from the test cavity, is fixedly connected with a second front door panel;
the translation driving part is an air cylinder, and a piston rod of the air cylinder is fixedly connected with the bottom of the second front door plate; two sliding rods are fixed on the second front door plate and are symmetrically distributed relative to the piston rod of the air cylinder.
Optionally, a rear opening is formed in the second surface of the box body, and a rear door is arranged at the rear opening; the rear door is hinged with the box body; a rear door wave absorbing layer is arranged on one surface of the rear door facing the test cavity;
the edge part of one surface, facing the test cavity, of the rear door is provided with a rear door sealing groove used for containing a rear door shielding sealing gasket, and the rear door shielding sealing gasket is fixed in the rear door sealing groove;
the box orientation the part of the edge portion of back door is seted up and is used for holding the sealed back box seal groove that fills up of back box shielding, back box shielding is sealed to be fixed in the back box seal groove.
Optionally, the box body is a metal shielding layer, and the antenna is located right above the test carrier;
the test carrier is provided with a test station for placing a product to be tested, and the test carrier is also provided with a product fixing piece for fixing the product to be tested.
Optionally, the first rotation axis is perpendicular to the second rotation axis; the first rotary driving piece and the second rotary driving piece are both motors;
the bottom of the box body is also provided with a control cavity, and the control cavity and the test cavity are separated by a partition plate; and a controller is arranged in the control cavity and electrically connected with the first rotary driving part, the second rotary driving part and the translation driving part.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a test shielded cell utilizes first rotary driving piece drive test carrier to encircle first rotation axis rotation, utilizes the first fixed frame of second rotary driving piece drive to take the first rotary driving piece of test carrier rotatory to make the test carrier can follow two directions and rotate, and then reach the purpose that only needs an antenna can accomplish the test, the antenna that needs is small in quantity, saves the cost, and it is more accurate to make the test.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a test shielding box provided by an embodiment of the present invention.
Fig. 2 is a schematic diagram of a partial structure of a test shielding box according to an embodiment of the present invention.
Fig. 3 is a top view of a partial structure of a test shielding box according to an embodiment of the present invention.
Fig. 4 is a schematic view illustrating a test carrier rotating around a first rotation axis according to an embodiment of the present invention.
Fig. 5 is a schematic view illustrating a test carrier rotating around a second rotation axis according to an embodiment of the present invention.
Fig. 6 is a schematic view of a front door provided in an embodiment of the present invention.
Fig. 7 is another schematic view of a front door according to an embodiment of the present invention.
Fig. 8 is a further schematic view of a front door according to an embodiment of the present invention.
Fig. 9 is a schematic view of a rear door according to an embodiment of the present invention.
Illustration of the drawings: 1. a box body; 11. the front box body is provided with a shielding sealing gasket; 2. a test chamber; 20. a wave absorbing layer of the box body; 21. an antenna; 3. a control chamber; 4. a test carrier; 40. a product to be tested; 41. a test station; 42. a product securing member; 51. a first fixed frame; 52. a second fixed frame; 61. a first rotary drive member; 611. a driving wheel; 612. a transmission belt; 613. a driven wheel; 62. a second rotary drive; 7. a front door; 70. a front door wave-absorbing layer; 71. a first front door panel; 711. a front door shielding gasket; 72. a second front door panel; 73. a slide bar; 74. a translation drive rod; 75. a linear bearing; 76. a translation drive; 8. a rear door; 80. a back door wave absorbing layer; 81. the rear box body is provided with a shielding sealing gasket.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the embodiments described below are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. It should be noted that when one component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
The embodiment provides a test shielding box. Referring to fig. 1, the test shielding box includes a box body 1, and a test chamber 2 is formed in the box body 1. The inner wall of the test cavity 2 is fixedly provided with a box body wave absorbing layer 20, and the box body 1 forms a metal shielding layer. Thus, a good shielding effect can be obtained at the time of testing.
The test shielding box further comprises a test carrier 4, the test carrier 4 being located within the test chamber 2 during testing. An antenna 21 is fixedly arranged in the test chamber 2, and the antenna 21 is positioned right above the test carrier 4 to detect the product 40 to be tested. The bottom of the box body 1 is also provided with a control cavity 3, and the control cavity 3 and the test cavity 2 are separated by a partition plate.
Referring to fig. 2, the test carrier 4 is provided with a test station 41 for placing the product 40 to be tested, and the test carrier 4 is further provided with a product fixing member 42 for fixing the product 40 to be tested. Specifically, one side of the product fixing member 42 is hinged to the test carrier 4, and the other side thereof is provided with a buckle capable of being buckled and connected with the test carrier 4. Thus, the product is convenient to mount and dismount.
Referring to fig. 3, the test carrier 4 is rotatably connected to a first fixed frame 51, and the first fixed frame 51 is rotatably connected to a second fixed frame 52. The test carrier 4 is further connected with a first rotary driving member 61 for driving the test carrier to rotate around a first rotary shaft, and the first fixed frame 51 is further connected with a second rotary driving member 62 for driving the test carrier to rotate around a second rotary shaft.
The first rotary driver 61 is fixedly connected to the first fixed frame 51, and the second rotary driver 62 is fixedly connected to the second fixed frame 52. The first rotation axis and the second rotation axis are perpendicular to each other.
That is, the second rotary driving member 62 drives the first fixed frame 51 to rotate, and drives the first rotary driving member 61 and the test carrier 4 to rotate. Then, the first rotary driving member 61 drives the test carrier 4 to rotate, so that the test carrier 4 can rotate around the first rotation axis and the second rotation axis perpendicular to each other by any angle.
A controller is arranged in the control cavity 3 and electrically connected with the first rotary driving member 61 and the second rotary driving member 62. Specifically, the method comprises the following steps. The first rotary drive 61 and the second rotary drive 62 are both motors.
Thus, the product 40 to be tested can rotate around two directions, fig. 4 is a schematic diagram of the test carrier 4 rotating around the first rotation axis, and fig. 5 is a schematic diagram of the test carrier 4 rotating around the second rotation axis. The design only needs one antenna 21 to complete the test, and the cost is saved.
Referring to fig. 6 to 7, a front opening for the test carrier 4 to enter and exit the test chamber 2 is formed on the first surface of the box 1, and a front door 7 is disposed at the front opening. The front door 7 is fixedly connected with a slide bar 73, and the slide bar 73 is connected with the box body 1 in a sliding way through a linear bearing 75. The second fixed frame 52 is fixedly connected to the front door 7. The driving mode of the front door 7 can be driven manually or by a driving piece.
The front door 7 is provided with a front door wave absorbing layer 70 on the side facing the test chamber 2, so as to achieve a good effect of absorbing and reflecting electromagnetic waves during testing.
The shielding test box further comprises a translation drive 76, the translation drive rod 74 of the translation drive 76 being fixedly connected to the front door 7.
Specifically, the front door 7 includes a first front door panel 71 for sealing the front opening, and a second front door panel 72 is fixedly connected to a side of the first front door panel 71 away from the test chamber 2. The second fixing frame 52 is fixedly coupled to the first front door panel 71.
The translation driving member 76 is a cylinder, and a piston rod of the cylinder is fixedly connected to the bottom of the second front door panel 72. Two sliding rods 73 are fixed on the second front door panel 72, and the two sliding rods 73 are symmetrically distributed around the piston rod of the air cylinder.
Referring to fig. 3, in this embodiment, the second fixing frame 52 is u-shaped, and the u-shaped opening is fixedly connected to the first front door plate 71. The second rotary driving member 62 is fixedly connected to the first front door panel 71 and is located inside the second fixed frame 52.
The first fixed frame 51 is located inside the second fixed frame 52. The first side (right side in fig. 3) of the first fixed frame 51 is fixedly connected to the drive lever of the second rotary drive 62, and the second side (left side in fig. 3) of the first fixed frame 51 is rotatably connected to the second fixed frame 52. The test carrier 4 is located at the center of the first fixed frame 51, and opposite two sides of the test carrier 4 are respectively and rotatably connected with the third side (the upper side in fig. 3) and the fourth side (the lower side in fig. 3) of the first fixed frame 51. The first side and the second side of the first fixed frame 51 are two opposing sides, and the third side and the fourth side are two opposing sides.
The driving rod of the first rotary driving member 61 is fixedly connected with a driving wheel 611, a driving belt 612 is tensioned on the driving wheel 611, and one end of the driving belt 612 far away from the driving wheel 611 is tensioned on a driven wheel 613. The test carrier 4 is provided with a carrier rotating rod, which passes through the third/fourth edge of the first fixing frame 51 and is fixedly connected to the driven wheel 613.
Referring to fig. 2 and 8, in order to further improve the shielding effect of the test shielding box, a front door sealing groove for accommodating a front door shielding gasket 711 is formed in an edge portion of one surface of the front door 7 facing the test chamber 2, and the front door shielding gasket 711 is fixed in the front door sealing groove. The part of the box body 1 facing the edge part of the front door 7 is provided with a front box body sealing groove for accommodating a front box body shielding sealing gasket 11, and the front box body shielding sealing gasket 11 is arranged in the front box body sealing groove.
Referring to fig. 9, in the present embodiment, a rear opening is formed on the second surface of the box body 1, and a rear door 8 is disposed at the rear opening. The back door 8 is hinged with the box body 1. And a back door wave absorbing layer 80 is arranged on one surface of the back door 8 facing the test cavity 2. The back door 8 is provided to facilitate installation and debugging of parts.
The edge part of the one side of back door 8 orientation test chamber 2 offers the back door seal groove that is used for holding the sealed pad of back door shield, and the sealed pad of back door shield is fixed in back door seal groove. The part of the box 1 facing the edge of the rear door 8 is provided with a rear box sealing groove for accommodating a rear box shielding gasket 81, and the rear box shielding gasket 81 is arranged in the rear box sealing groove.
In this embodiment, the connectors inside and outside the test chamber 2 are connected to perform EMI isolation processing, and include a USB filter connector, a DB25 filter connector, an SMA connector, and the like. The test carrier 4, the product fixing member 42, the first fixed frame 51 and the second fixed frame 52 are made of a non-metallic material.
The test shielding box provided by the embodiment has the following beneficial effects:
(1) the first rotary driving member 61 is used for driving the test carrier 4 to rotate around the first rotary shaft, the second rotary driving member 62 is used for driving the first fixing frame 51 to drive the test carrier 4 and the first rotary driving member 61 to rotate, so that the test carrier 4 can rotate along two directions, the purpose that only one antenna 21 is needed to complete the test is achieved, compared with the scheme of other antennas 21, the number of the needed antennas 21 is less, the cost is saved, and the test is more accurate.
(2) The shielding effect is excellent, the shielding sealing material is arranged at the pressing part between the shielding test box and the front door 8 and between the shielding test box and the rear door 8, connectors for connecting the inside and the outside of the shielding box are subjected to EMI isolation treatment, and the testing of millimeter-wave band products in fifth-generation mobile communication can be well met.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. A test shielding box comprises a test carrier, and is characterized in that the test carrier is rotatably connected with a first fixed frame, and the first fixed frame is rotatably connected with a second fixed frame; the test carrier is further connected with a first rotary driving piece for driving the test carrier to rotate around a first rotating shaft, and the first fixed frame is further connected with a second rotary driving piece for driving the first fixed frame to rotate around a second rotating shaft;
the first rotary driving piece is fixedly connected with the first fixing frame, and the second rotary driving piece is fixedly connected with the second fixing frame.
2. The test shielding box of claim 1, further comprising a box body, wherein the box body is hollow to form a test cavity, the test carrier is located in the test cavity during testing, and a box body wave absorbing layer is fixedly arranged on the inner wall of the test cavity;
the fixed frame of second is connected with the translation driving piece that has its translation of drive, the fixed antenna that is equipped with in test cavity.
3. The test shielding box of claim 2, wherein a front opening for the test carrier to enter and exit the test chamber is formed in the first surface of the box body, and a front door is arranged at the front opening; the front door is fixedly connected with a sliding rod, and the sliding rod is connected with the box body in a sliding manner through a linear bearing; the second fixing frame is fixedly connected with the front door, and a translation driving rod of the translation driving piece is fixedly connected with the front door;
and a front door wave absorbing layer is arranged on one surface of the front door facing the test cavity.
4. The test shielding box according to claim 3, wherein the second fixing frame is a U-shaped fixing frame, and the opening of the U-shaped fixing frame is fixedly connected with the front door; the second rotary driving piece is fixedly connected with the front door and is positioned in the second fixed frame;
the first fixed frame is positioned in the second fixed frame; the first edge of the first fixed frame is fixedly connected with the driving rod of the second rotary driving piece, and the second edge of the first fixed frame is rotatably connected with the second fixed frame;
the test carrier is positioned in the center of the first fixed frame, and two opposite sides of the test carrier are respectively and rotatably connected with the third edge and the fourth edge of the first fixed frame;
the first edge and the second edge of the first fixing frame are two opposite edges, and the third edge and the fourth edge are two opposite edges.
5. The test shielding box of claim 4, wherein the driving rod of the first rotary driving member is fixedly connected with a driving wheel, a transmission belt is tensioned on the driving wheel, and one end of the transmission belt, which is far away from the driving wheel, is tensioned on a driven wheel; and a carrier rotating rod is arranged on the test carrier, and penetrates through the third edge/the fourth edge of the first fixed frame to be fixedly connected with the driven wheel.
6. The test shielding box according to claim 3, wherein a front door sealing groove for accommodating a front door shielding gasket is formed in an edge portion of one surface of the front door facing the test cavity, and the front door shielding gasket is fixed in the front door sealing groove;
the box orientation the part of the edge portion of qianmen offers the preceding box seal groove that is used for holding preceding box shielding sealing gasket, preceding box shielding sealing gasket is located in the preceding box seal groove.
7. The test shielded box of claim 3, wherein the front door includes a first front door panel for sealing the front opening, the second securing frame fixedly attached to the first front door panel; one side of the first front door panel, which is away from the test cavity, is fixedly connected with a second front door panel;
the translation driving part is an air cylinder, and a piston rod of the air cylinder is fixedly connected with the bottom of the second front door plate; two sliding rods are fixed on the second front door plate and are symmetrically distributed relative to the piston rod of the air cylinder.
8. The test shielding box of claim 2, wherein a rear opening is provided on the second side of the box body, and a rear door is provided at the rear opening; the rear door is hinged with the box body; a rear door wave absorbing layer is arranged on one surface of the rear door facing the test cavity;
the edge part of one surface, facing the test cavity, of the rear door is provided with a rear door sealing groove used for containing a rear door shielding sealing gasket, and the rear door shielding sealing gasket is fixed in the rear door sealing groove;
the box orientation the part of the edge portion of back door is seted up and is used for holding the sealed back box seal groove that fills up of back box shielding, back box shielding is sealed to be fixed in the back box seal groove.
9. The test shielding box of claim 2, wherein the box body is a metal shielding layer, and the antenna is located right above the test carrier;
the test carrier is provided with a test station for placing a product to be tested, and the test carrier is also provided with a product fixing piece for fixing the product to be tested.
10. The test shielded box of claim 2, wherein the first axis of rotation is perpendicular to the second axis of rotation; the first rotary driving piece and the second rotary driving piece are both motors;
the bottom of the box body is also provided with a control cavity, and the control cavity and the test cavity are separated by a partition plate; and a controller is arranged in the control cavity and electrically connected with the first rotary driving part, the second rotary driving part and the translation driving part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348403.3U CN210051801U (en) | 2019-03-19 | 2019-03-19 | Test shielding box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920348403.3U CN210051801U (en) | 2019-03-19 | 2019-03-19 | Test shielding box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210051801U true CN210051801U (en) | 2020-02-11 |
Family
ID=69378757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920348403.3U Active CN210051801U (en) | 2019-03-19 | 2019-03-19 | Test shielding box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210051801U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181490A (en) * | 2018-02-11 | 2018-06-19 | 珠海博杰电子股份有限公司 | Multi-functional shielded box |
| CN112526322A (en) * | 2020-12-09 | 2021-03-19 | 江苏联康信息股份有限公司 | Millimeter wave function test fixture for electronic mainboard |
| CN115407144A (en) * | 2022-08-23 | 2022-11-29 | 江苏联康信息股份有限公司 | Automatic testing arrangement of shielded cell isolation |
| CN116990612A (en) * | 2023-08-02 | 2023-11-03 | 沈阳大学 | Environment adaptability signal detection equipment suitable for electronic product |
-
2019
- 2019-03-19 CN CN201920348403.3U patent/CN210051801U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181490A (en) * | 2018-02-11 | 2018-06-19 | 珠海博杰电子股份有限公司 | Multi-functional shielded box |
| CN108181490B (en) * | 2018-02-11 | 2024-01-19 | 珠海博杰电子股份有限公司 | Multifunctional shielding box |
| CN112526322A (en) * | 2020-12-09 | 2021-03-19 | 江苏联康信息股份有限公司 | Millimeter wave function test fixture for electronic mainboard |
| CN115407144A (en) * | 2022-08-23 | 2022-11-29 | 江苏联康信息股份有限公司 | Automatic testing arrangement of shielded cell isolation |
| CN115407144B (en) * | 2022-08-23 | 2023-09-22 | 江苏联康信息股份有限公司 | Automatic testing device for isolation degree of shielding box |
| CN116990612A (en) * | 2023-08-02 | 2023-11-03 | 沈阳大学 | Environment adaptability signal detection equipment suitable for electronic product |
| CN116990612B (en) * | 2023-08-02 | 2024-05-17 | 沈阳大学 | Environment adaptability signal detection equipment suitable for electronic product |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210051801U (en) | Test shielding box | |
| CN209390110U (en) | Electronic equipment | |
| JPH08222880A (en) | Emi shield surrounding body | |
| CN109728415A (en) | A kind of wireless electronic communication apparatus | |
| US9413056B2 (en) | Electronic device with aerial glass cover | |
| CN204929541U (en) | Electromagnetic shield glass and shielding cabin body thereof | |
| CN102006766A (en) | Mobile terminal and method for reducing electromagnetic wave energy absorption ratio thereof | |
| CN108181490A (en) | Multi-functional shielded box | |
| CN201985233U (en) | Active antenna | |
| CN215932049U (en) | Double-station electromagnetic interference shielding testing device | |
| CN212646818U (en) | Electromagnetic wave shielding box | |
| CN113451738A (en) | WiFi6E slot antenna assembly and metal shell equipment | |
| CN208904225U (en) | 5G millimeter wave mobile terminal antenna system based on metal frame | |
| CN210840404U (en) | Totally enclosed outdoor electronic equipment host computer structure | |
| CN211557864U (en) | Drawer type shielding box | |
| EP1463211A1 (en) | Portable radiotelephone with reduced specific absorption rate | |
| CN114002565A (en) | GIS partial discharge test sensor interface device capable of being quickly mounted | |
| CN221126349U (en) | 5G base station power connector shielding accessory | |
| CN207866869U (en) | Multi-functional shielded box | |
| CN215499916U (en) | Signal detection equipment for 5G communication construction | |
| CN217212854U (en) | Box type anechoic chamber | |
| CN217427090U (en) | Single-port UWB (ultra-wideband) broadband directional antenna | |
| CN215581156U (en) | Frequency hopping source with strong anti-interference capability | |
| CN216163142U (en) | Data processing assembly and electronic equipment | |
| CN215451748U (en) | WiFi6E slot antenna assembly and metal shell equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |