CN106132146B - Electromagnetic compatible case - Google Patents
Electromagnetic compatible case Download PDFInfo
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- CN106132146B CN106132146B CN201610708085.8A CN201610708085A CN106132146B CN 106132146 B CN106132146 B CN 106132146B CN 201610708085 A CN201610708085 A CN 201610708085A CN 106132146 B CN106132146 B CN 106132146B
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- 238000001914 filtration Methods 0.000 claims abstract description 28
- 230000002441 reversible effect Effects 0.000 claims description 31
- 230000000739 chaotic effect Effects 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000002265 prevention Effects 0.000 claims description 6
- 230000003068 static effect Effects 0.000 claims description 3
- 240000009087 Crescentia cujete Species 0.000 claims 3
- 235000005983 Crescentia cujete Nutrition 0.000 claims 3
- 235000009797 Lagenaria vulgaris Nutrition 0.000 claims 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241000219122 Cucurbita Species 0.000 description 7
- 235000009852 Cucurbita pepo Nutrition 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0204—Mounting supporting structures on the outside of casings
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0217—Mechanical details of casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/0247—Electrical details of casings, e.g. terminals, passages for cables or wiring
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0007—Casings
- H05K9/0015—Gaskets or seals
- H05K9/0016—Gaskets or seals having a spring contact
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention provides an electromagnetic compatibility case, which comprises a shielding case body and a filtering module, wherein the filtering module comprises a shielding shell, a filtering circuit, an input connector and an output connector, wherein the input connector and the output connector are arranged on the shielding shell and are respectively and correspondingly connected with the input end and the output end of the filtering circuit; the shielding box body comprises a fixing plate, a shielding bottom plate, a shielding main box and a shielding cover plate, wherein the fixing plate is used for fixedly mounting the electromagnetic compatibility case on an external supporting structure; the fixed plate, the shielding bottom plate, the shielding main body box and the shielding cover plate are sequentially and fixedly connected from bottom to top, and form a sealed box body for shielding external electromagnetic waves together with the shielding shell of the filtering module. The invention has the beneficial effects that: the case is small in size, convenient to install and suitable for more use environments.
Description
Technical Field
The invention relates to the field of electronic equipment, in particular to an electromagnetic compatibility case.
Background
With the development of science and technology, the number and the types of modern various electronic, electrical and information equipment are more and more, various electromagnetic interferences are more and more, the requirements on electromagnetic compatibility in various aspects such as production, test and use are increasingly improved, and the problems of shielding magnetic fields and filtering are mainly solved through an electromagnetic compatibility case at present; the common electromagnetic compatibility case is simple in structural design and cannot be mounted on an external supporting structure or device for combined use, so that the functional application of the electromagnetic compatibility case is limited to a certain extent; the traditional electromagnetic compatibility case is unreasonable in structural design, the electromagnetic shielding case and the filtering module comprise independent shielding shells, the size is large, the weight is heavy, and the electromagnetic compatibility case is not convenient to be assembled with other external supporting structures for use; for the use of the electromagnetic compatibility case, in some cases, because the filter module of the electromagnetic compatibility case or the input butt joint equipment of the filter module is not subjected to fool-proof processing at the terminal, the reverse connection phenomenon may occur in the use process; the existing electromagnetic compatible case does not have the function of reverse connection prevention, and a common reverse connection prevention scheme applied to other fields is reverse connection, disconnection and no output, so that the state sometimes cannot cause the attention of operators in time and even can cause the trouble of the operators; in addition, in practical use, interference needs to be added to signals to detect actual feedback of a back-end product, and when a fault state signal cannot be output by a front-end device, external devices need to be added, so that the device requirements are increased, and therefore a new electromagnetic compatibility chassis needs to be designed to solve the problem.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the reverse connection prevention electromagnetic compatible case which is convenient to be installed on other supporting structures.
In order to achieve the purpose, the invention adopts the following technical scheme:
an electromagnetic compatibility case comprises a shielding case body and a filter module, wherein the filter module comprises a shielding shell, a filter circuit, an input connector and an output connector which are arranged on the shielding shell and respectively correspondingly connected with the input end and the output end of the filter circuit, the shielding shell is of a cuboid structure in general, and the filter circuit comprises an anti-reverse connection unit; the shielding box body comprises a fixing plate, a shielding bottom plate, a shielding main box and a shielding cover plate, wherein the fixing plate is used for fixedly mounting the electromagnetic compatibility case on an external supporting structure; the cross section of the shielding main body box is U-shaped, and the length and the height of the U-shaped shielding main body box are correspondingly equal to those of the shielding shell; one side of the U-shaped opening of the shielding main body box is butted and fixedly connected with a shielding shell of the filtering module; the sizes of the outer edges of the cross sections of the shielding bottom plate, the shielding cover plate and the fixing plate are matched with the sizes of the outer edges of the shielding main body box and the filtering module which are fixedly butted; the fixed plate, the shielding bottom plate, the shielding main body box and the shielding cover plate are fixedly connected in sequence from bottom to top and form a sealed box body for shielding external electromagnetic waves together with the shielding shell of the filtering module; and conductive rubber strips are also arranged among the shielding bottom plate, the shielding main body box and the shielding cover plate and are used for filling the connecting gap and enhancing the integral shielding performance of the electromagnetic compatibility case.
Furthermore, a plane of the shielding bottom plate close to one side of the fixing plate comprises a circle of closed retaining wall; the fixed plate includes the chamber that holds that matches with the closed barricade, is equipped with a plurality of communicating fixed mounting holes that correspond at the lateral wall that closed barricade and hold the chamber.
Furthermore, both sides of the fixing plate also comprise mounting blocks which respectively extend outwards, and the mounting blocks comprise mounting through holes; the accommodating cavity area of the fixing plate further comprises at least three threaded holes and three gourd holes, the three threaded holes and/or the three gourd holes are arranged in a straight line in the direction parallel to the long edge of the shielding shell, and the distance between every two adjacent threaded holes or the gourd holes is equal.
Furthermore, two ends of the side surface of the shielding shell close to the open side of the shielding main body box are provided with lugs which are extended and protruded along the direction vertical to the long side of the shielding shell; the shielding main body box is provided with a groove along the end surface direction of the vertical U-shaped open side; one side of the groove is communicated with the inner side or the outer side of the parallel side surface of the U shape; the side walls of the convex block and the groove comprise connecting holes which are matched in a butt joint mode and used for fixedly connecting through a screw.
Furthermore, the reverse connection prevention unit comprises a reverse connection indicator lamp and a reverse connection protection module, the reverse connection indicator lamp is an LED, and is integrally connected with the input end of the filter circuit in parallel after being connected with the current-limiting resistor in series, wherein one side of the anode of the LED is connected with the high potential input end of the filter circuit, and one side of the cathode of the LED is connected with the low potential input end of the filter circuit; the LED is fixedly arranged on the outer side of the shielding shell through an LED lamp holder; the reverse connection protection module comprises a diode D1 and a double-pole double-throw relay K1; the diode D1 is connected with a trigger coil K1-T of the double-pole double-throw relay K1 in series, and then is integrally connected to the input end of the filter circuit in parallel, wherein one side close to the cathode of the diode D1 is connected with the high-potential input end of the filter circuit; the static contact ends of two switches K1-1 and K1-2 of the double-pole double-throw relay K1 are respectively connected with the high-potential output end and the low-potential output end of the output joint of the filter module, the two normally-closed movable contact ends of the double-pole double-throw relay are respectively connected with the high-potential output end and the low-potential output end of the filter circuit, and the two normally-open movable contact ends are respectively connected with the normally-closed movable contact ends of the other group of switches; the output end of the filter circuit is connected with the output connector of the filter module through a switch of a double-pole double-throw relay K1.
Furthermore, the filtering module also comprises an independent chaotic circuit module, and the output of the independent chaotic circuit module is connected with the input of the filtering circuit through an independent switch.
The electromagnetic compatibility case is fixedly arranged on other external supporting structures through the fixing plate; the shielding shell of the filtering module becomes a component of the electromagnetic wave shielding box body, and the traditional shielding box and two independent shells of the filter are not simply lengthened, so that the material is saved, and the volume and the weight of the electromagnetic compatible case are reduced; in addition, when the input reverse connection occurs, the reverse connection indicator light is turned off, the double-pole double-throw relay K1 acts, the output polarity of the electromagnetic compatibility case is normal, but the filtering effect of the filtering module is influenced due to the fact that the relay coil is incorporated.
Compared with the prior art, the invention has the following beneficial effects:
the novel energy-saving cabinet is small in size, convenient to install and suitable for more use environments;
the anti-connection alarm device has the advantages that the anti-connection prompt and the anti-connection protection function are achieved, the anti-connection alarm signal is sent out in time to inform operating personnel, and adverse effects on rear-section equipment caused by the anti-connection are avoided.
Drawings
Fig. 1 is a schematic right view of the structure of the embodiment.
Fig. 2 is a schematic diagram of the shield main body box and the filter module housing in the embodiment in butt joint.
Fig. 3 is a schematic structural diagram of an electromagnetic compatibility chassis according to an embodiment.
Fig. 4 is a schematic diagram illustrating the connection between the fixing plate and the shielding base plate in the embodiment.
FIG. 5 is a bottom view of the shield base plate according to the embodiment.
Fig. 6 is a schematic structural view of the fixing plate in the embodiment.
FIG. 7 is a logic diagram of the reverse connection preventing unit of the embodiment.
Fig. 8 is a schematic diagram of a connection logic between the chaotic circuit and the filter circuit according to the embodiment.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the embodiments.
An electromagnetic compatibility case comprises a shielding case body and a filter module, wherein the filter module comprises a shielding shell, a filter circuit, an input connector and an output connector which are arranged on the shielding shell and respectively correspondingly connected with the input end and the output end of the filter circuit, the shielding shell is of a cuboid structure in general, and the filter circuit comprises an anti-reverse connection unit; as shown in fig. 1, the shielding box comprises a fixing plate 1, a shielding bottom plate 2, a shielding main body box 3 and a shielding cover plate 4, wherein the fixing plate 1 is used for fixedly mounting the electromagnetic compatibility chassis on an external supporting structure; the cross section of the shielding main body box 3 is U-shaped, and the length and the height of the U-shaped shielding main body box are correspondingly equal to those of the shielding shell; as shown in fig. 2, the open side of the U-shaped shielding main body box 3 is butted and fixedly connected with the shielding shell of the filtering module 5; the two ends of the side surface of the shielding shell close to the U-shaped opening side of the shielding main body box 3 comprise convex blocks 6 which are extended and protruded along the direction vertical to the long side of the shielding shell; the shielding main body box is provided with a groove 7 along the end surface direction of the vertical U-shaped open side; one side of the groove 7 is communicated with the inner side or the outer side of the parallel side surface of the U shape; the side walls of the lug 6 and the groove 7 comprise connecting holes 8 which are matched in a butt joint mode and used for fixedly connecting through a screw; as shown in fig. 1 and 3, the outer dimensions of the cross sections of the shielding bottom plate 2, the shielding cover plate 4 and the fixing plate 1 are matched with the outer dimensions of the shielding main body box 3 and the filtering module 5 after butt joint and fixing; the fixed plate 1, the shielding bottom plate 2, the shielding main body box 3 and the shielding cover plate 4 are fixedly connected in sequence from bottom to top and form a sealed box body for shielding external electromagnetic waves together with the shielding shell of the filtering module 5; and conductive rubber strips are also arranged among the shielding bottom plate 2, the shielding main body box 3 and the shielding cover plate 4 and are used for filling connecting gaps and enhancing the integral shielding performance of the electromagnetic compatibility case.
As shown in fig. 4 and 5, the shielding bottom plate 2 includes a circle of closed retaining wall 9 on the plane of the side close to the fixing plate 1; the fixing plate 1 comprises a containing cavity 10 matched with the closed retaining wall 9, and a plurality of corresponding and communicated fixed mounting holes 11 are formed in the side walls of the closed retaining wall and the containing cavity.
As shown in fig. 3 and 6, the two sides of the fixing plate 1 further include mounting blocks 12 respectively extending outward, and the mounting blocks 12 include mounting through holes 13; the accommodating cavity area of the fixing plate further comprises at least three threaded holes 14 and three gourd holes 15, the three threaded holes 14 and/or the three gourd holes 15 are arranged in a straight line in the direction parallel to the long edge of the shielding shell, and the distance between every two adjacent threaded holes or gourd holes is equal, so that the stress balance can be kept when the fixing plate is clamped outside; when in use, the mounting block 12 and the mounting through hole 13 can be mounted on an external plate bracket by using screws and nuts, and can also be inserted in a fixed rod or a supporting shaft on an external inclined plane through a threaded hole 14 or a gourd-shaped hole 15; the threaded hole 14 can also be screwed into a screw rod with a certain length and the screw rod is clamped into an external clamping groove; in order to improve the supporting strength, the inner diameter of the threaded hole is between 8mm and 20 mm; in addition, a plurality of flexible fixing modes of the fixing plate 1 can be added by using a support in a matched manner, and after the support is fixed on the threaded hole 14 and the gourd hole 15 through screws, the support can be hooked and clamped on other external supporting devices; in order to reduce the dead weight of the fixing plate 1, only the wall thickness near the fixing mounting hole 11 is ensured, and the wall thickness far from the fixing mounting hole 11 is correspondingly reduced.
As shown in fig. 7, the reverse connection preventing unit includes a reverse connection indicating lamp and a reverse connection protecting module, the reverse connection indicating lamp is an LED, and is connected in series with the current limiting resistor and then integrally connected in parallel with the input end of the filter circuit, wherein one side of the anode of the LED is connected to the high potential input end (P end) of the filter circuit, and one side of the cathode of the LED is connected to the low potential input end (N end) of the filter circuit; the LED is fixedly arranged on the outer side of the shielding shell through an LED lamp holder; the reverse connection protection module comprises a diode D1 and a double-pole double-throw relay K1; the diode D1 is connected with a trigger coil K1-T of the double-pole double-throw relay K1 in series, and then is integrally connected to the input end of the filter circuit in parallel, wherein one side close to the cathode of the diode D1 is connected with the high-potential input end of the filter circuit; the static contact ends of two switches K1-1 and K1-2 of the double-pole double-throw relay K1 are respectively connected with a high-potential output end (P 'end) and a low-potential output end (N' end) of an output joint of a filter module, two normally closed movable contact ends of the double-pole double-throw relay are respectively connected with the high-potential output end and the low-potential output end of a filter circuit, and two normally open movable contact ends of the double-pole double-throw relay K1 are respectively connected with the normally closed movable contact ends of the other group of switches; the output end of the filter circuit is connected with the output connector of the filter module through a switch of a double-pole double-throw relay K1.
The electromagnetic compatibility case is fixedly arranged on other external supporting structures through the fixing plate; the shielding shell of the filtering module becomes a component of the electromagnetic wave shielding box body, and the traditional shielding box and two independent shells of the filter are not simply lengthened, so that the material is saved, and the volume and the weight of the electromagnetic compatible case are reduced; in addition, when the input reverse connection occurs, the reverse connection indicator light is turned off, the double-pole double-throw relay K1 acts, the output polarity of the electromagnetic compatibility case is normal, but the filtering effect of the filtering module is influenced due to the fact that the relay coil is incorporated.
As shown in fig. 8, the filtering module further includes an independent chaotic circuit module, which is composed of a chaotic circuit, a double-pole double-throw independent switch and a battery, wherein one switch K2-1 of the double-pole double-throw independent switch is used for connecting the chaotic circuit and the battery, and the other switch K2-2 of the double-pole double-throw independent switch is used for connecting the output of the chaotic circuit and the input of the filtering circuit; when interference needs to be added, the double-pole double-throw independent switch is closed, and an irregular electric signal generated by the chaotic circuit is added to the input end of the filter circuit, so that the actual feedback of the rear-end equipment of the filter circuit can be observed without connecting additional external equipment; different types of chaotic circuits can be used according to actual requirements.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. The utility model provides an electromagnetic compatibility machine case, contains shielding box and filter module, and filter module contains shielding shell, filter circuit and installs on shielding shell and correspond continuous input joint and output joint with filter circuit input, output respectively, its characterized in that: the shielding shell is of a cuboid structure, and the filter circuit comprises an anti-reverse connection unit; the shielding box body comprises a fixing plate, a shielding bottom plate, a shielding main box and a shielding cover plate, wherein the fixing plate is used for fixedly mounting the electromagnetic compatibility case on an external supporting structure; the cross section of the shielding main body box is U-shaped, and the length and the height of the U-shaped shielding main body box are correspondingly equal to those of the shielding shell; one side of the U-shaped opening of the shielding main body box is butted and fixedly connected with a shielding shell of the filtering module; the sizes of the outer edges of the cross sections of the shielding bottom plate, the shielding cover plate and the fixing plate are matched with the sizes of the outer edges of the shielding main body box and the filtering module which are fixedly butted; the fixed plate, the shielding bottom plate, the shielding main body box and the shielding cover plate are fixedly connected in sequence from bottom to top and form a sealed box body for shielding external electromagnetic waves together with the shielding shell of the filtering module; the filtering module also comprises an independent chaotic circuit module, and the output of the chaotic circuit module is connected with the input of the filtering circuit through an independent switch.
2. An electromagnetic compatibility enclosure according to claim 1, wherein: the shielding bottom plate comprises a circle of closed retaining wall on the plane of one side close to the fixed plate; the fixed plate includes the chamber that holds that matches with the closed barricade, is equipped with a plurality of communicating fixed mounting holes that correspond at the lateral wall that closed barricade and hold the chamber.
3. An electromagnetic compatibility enclosure according to claim 1 or 2, wherein: the two sides of the fixing plate also comprise mounting blocks which respectively extend outwards, and the mounting blocks comprise mounting through holes; still include at least three screw hole and three calabash hole in the holding chamber region of fixed plate, three screw hole and three calabash hole are the direction parallel with the long limit of shielding shell and are arranged in a word, and the interval between two adjacent screw holes or the calabash hole equals.
4. An electromagnetic compatibility chassis according to claim 3, wherein: the two ends of the side surface of the shielding shell close to the opened side of the shielding main body box are provided with lugs which are extended and protruded along the direction vertical to the long edge of the shielding shell; the shielding main body box is provided with a groove along the end surface direction of the vertical U-shaped open side; one side of the groove is communicated with the inner side or the outer side of the parallel side surface of the U shape; the side walls of the convex block and the groove comprise connecting holes which are matched in a butt joint mode and used for fixedly connecting through a screw.
5. An electromagnetic compatibility chassis according to claim 4, wherein: the reverse connection prevention unit comprises a reverse connection indicator lamp and a reverse connection protection module, the reverse connection indicator lamp is an LED, the reverse connection indicator lamp is connected with the current-limiting resistor in series and then is integrally connected with the input end of the filter circuit in parallel, wherein one side of the anode of the LED is connected with the high-potential input end of the filter circuit, and one side of the cathode of the LED is connected with the low-potential input end of the filter circuit; the reverse connection prevention unit comprises a reverse connection indicator lamp and a reverse connection protection module, the reverse connection indicator lamp is an LED, the reverse connection indicator lamp is connected with the current-limiting resistor in series and then is integrally connected with the input end of the filter circuit in parallel, wherein one side of the anode of the LED is connected with the high-potential input end of the filter circuit, and one side of the cathode of the LED is connected with the low-potential input end of the filter circuit; the LED is fixedly arranged on the outer side of the shielding shell through an LED lamp holder; the reverse connection protection module comprises a diode D1 and a double-pole double-throw relay K1; the diode D1 is connected with a trigger coil K1-T of the double-pole double-throw relay K1 in series, and then is integrally connected to the input end of the filter circuit in parallel, wherein one side close to the cathode of the diode D1 is connected with the high-potential input end of the filter circuit; the static contact ends of two switches K1-1 and K1-2 of the double-pole double-throw relay K1 are respectively connected with the high-potential output end and the low-potential output end of the output joint of the filter module, the two normally-closed movable contact ends of the double-pole double-throw relay are respectively connected with the high-potential output end and the low-potential output end of the filter circuit, and the two normally-open movable contact ends are respectively connected with the normally-closed movable contact ends of the other group of switches; the output end of the filter circuit is connected with the output connector of the filter module through a switch of a double-pole double-throw relay K1.
6. An electromagnetic compatibility chassis according to claim 3, wherein: the inner diameter of the threaded hole is between 8mm and 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708085.8A CN106132146B (en) | 2016-08-23 | 2016-08-23 | Electromagnetic compatible case |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610708085.8A CN106132146B (en) | 2016-08-23 | 2016-08-23 | Electromagnetic compatible case |
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| CN106132146A CN106132146A (en) | 2016-11-16 |
| CN106132146B true CN106132146B (en) | 2022-01-04 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107041115B (en) * | 2017-05-22 | 2019-06-04 | 中国电子科技集团公司第四十一研究所 | A kind of KVM all-in-one machine electromagnetic compatibility shielding chamber |
| CN107041114A (en) * | 2017-05-22 | 2017-08-11 | 中国电子科技集团公司第四十研究所 | Interface adapter Electro Magnetic Compatibility structure in a kind of Auto-Test System |
| CN108650873B (en) * | 2018-05-15 | 2021-03-02 | 河南科技大学第一附属医院 | An environmental protection device for eliminating the radiation hazards of nuclear magnetic resonance to human body |
| CN113671222B (en) * | 2021-08-17 | 2022-04-22 | 深圳市精泰达科技有限公司 | Filtering module with high shielding performance and corresponding shielding box thereof |
| CN115397229B (en) * | 2022-08-23 | 2024-12-27 | 西安甘鑫科技股份有限公司 | Electromagnetic compatibility processing device of high-power supply |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2680619B2 (en) * | 1988-08-10 | 1997-11-19 | 三洋電機株式会社 | Hybrid integrated circuit |
| JPH0715198Y2 (en) * | 1989-06-26 | 1995-04-10 | 株式会社ナムコ | Electromagnetic wave shield type circuit unit and circuit unit for TV game machine using the same |
| JP3616884B2 (en) * | 1995-05-31 | 2005-02-02 | 三菱電機株式会社 | Electromagnetic shielding device for electrical equipment |
| JPH11307975A (en) * | 1998-04-20 | 1999-11-05 | Tokin Corp | Electromagnetic shield case |
| JP2005252015A (en) * | 2004-03-04 | 2005-09-15 | Japan Radio Co Ltd | Shield box and measurement system |
| CN101272002A (en) * | 2008-04-15 | 2008-09-24 | 天津大学 | Metal mesh electromagnetic shielding device for outdoor small wireless transceiver devices in high voltage substations |
| CN101488702B (en) * | 2009-02-17 | 2011-09-07 | 杨汝 | PWM control circuit |
| CN101540616B (en) * | 2009-05-06 | 2012-11-07 | 中国科学院光电研究院 | Satellite-borne data transmission transmitter using microwave direct modulation technique |
| CN101692511B (en) * | 2009-09-08 | 2012-10-10 | 中国电子科技集团公司第十三研究所 | Millimeter-wave double-pole double-throw switch circuit |
| CN102679972B (en) * | 2012-06-01 | 2015-04-08 | 北京航空航天大学 | Compound housing for fiber optic gyroscope |
| TW201352127A (en) * | 2012-06-07 | 2013-12-16 | Askey Computer Corp | Electromagnetic shielding case and electronic device having the same |
| CN202886423U (en) * | 2012-10-25 | 2013-04-17 | 石家庄拓达科贸有限公司 | Electromagnetic shielding box |
| CN203378162U (en) * | 2013-08-06 | 2014-01-01 | 北京广利核系统工程有限公司 | Shell structure of function module |
| CN104602386A (en) * | 2013-10-31 | 2015-05-06 | 深圳市海洋王照明工程有限公司 | Positive and negative polarity conversion circuit and LED lamp |
| CN203761283U (en) * | 2013-12-28 | 2014-08-06 | 东莞市盈聚电子有限公司 | Output voltage-adjustable power adapter |
| CN204495870U (en) * | 2015-02-06 | 2015-07-22 | 浙江南腾电气有限公司 | New electricity meter case |
| CN105141274B (en) * | 2015-09-24 | 2018-08-07 | 重庆大及电子科技有限公司 | Filtering unit and its application |
| CN105305994A (en) * | 2015-12-09 | 2016-02-03 | 重庆大及电子科技有限公司 | Anti-misoperation filtering assembly |
| CN206024314U (en) * | 2016-08-23 | 2017-03-15 | 重庆大及电子科技有限公司 | A kind of electromagnetic compatibility cabinet |
-
2016
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