CN109616835B - Multifunctional circuit interface board applied to GYK equipment - Google Patents
Multifunctional circuit interface board applied to GYK equipment Download PDFInfo
- Publication number
- CN109616835B CN109616835B CN201811199770.8A CN201811199770A CN109616835B CN 109616835 B CN109616835 B CN 109616835B CN 201811199770 A CN201811199770 A CN 201811199770A CN 109616835 B CN109616835 B CN 109616835B
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- Prior art keywords
- unit
- electromagnetic interference
- socket unit
- interference protection
- aviation
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- 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.)
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- 238000001914 filtration Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000003466 welding Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 239000011324 bead Substances 0.000 claims description 7
- 230000001052 transient effect Effects 0.000 abstract description 3
- 208000025274 Lightning injury Diseases 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 210000001503 joint Anatomy 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R24/00—Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
- H01R24/20—Coupling parts carrying sockets, clips or analogous contacts and secured only to wire or cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
- H01R12/70—Coupling devices
- H01R12/71—Coupling devices for rigid printing circuits or like structures
- H01R12/712—Coupling devices for rigid printing circuits or like structures co-operating with the surface of the printed circuit or with a coupling device exclusively provided on the surface of the printed circuit
- H01R12/716—Coupling device provided on the PCB
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/648—Protective earth or shield arrangements on coupling devices, e.g. anti-static shielding
- H01R13/658—High frequency shielding arrangements, e.g. against EMI [Electro-Magnetic Interference] or EMP [Electro-Magnetic Pulse]
- H01R13/6591—Specific features or arrangements of connection of shield to conductive members
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R27/00—Coupling parts adapted for co-operation with two or more dissimilar counterparts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R31/00—Coupling parts supported only by co-operation with counterpart
- H01R31/06—Intermediate parts for linking two coupling parts, e.g. adapter
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Abstract
The invention discloses a multifunctional circuit interface board applied to GYK equipment, which comprises an European socket unit, an electromagnetic compatibility electromagnetic interference protection filter unit and an aviation socket unit which are connected in sequence; the aviation socket unit comprises a plurality of aviation sockets; each aviation socket is welded on the PCB board through a wireless binding connection process; the signal introduced by the circuit interface board through the aviation socket unit is output through the European socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit or the signal introduced by the circuit interface board through the European socket unit is output through the aviation socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit. Therefore, the circuit interface board provided by the invention not only improves the reliability of signal connection introduced to the PCB board through the aviation socket, but also has the functions of lightning stroke surge protection, fast transient pulse group interference protection, electromagnetic anti-interference filtering and the like.
Description
Technical Field
The invention relates to the technical field of wireless ligation technology and signal anti-interference filtering, in particular to a multifunctional circuit interface board applied to GYK equipment.
Background
The rear panel of the rail car running control equipment (GYK equipment for short) on the existing rail car is equivalent to a bridge interface for the interaction connection of the GYK equipment and other equipment on the rail car, and plays a key role in the communication of the GYK equipment and the other equipment or sensors. The existing GYK equipment or aviation seat of a DMI equipment case on the railway car is provided with a traditional manual welding wiring technology when being wired out, and a magnetic ring is sleeved on the tail of each aviation seat in order to prevent electromagnetic interference.
Disclosure of Invention
The invention aims to provide a multifunctional circuit interface board applied to GYK equipment, which not only improves the reliability of signal connection introduced to a PCB (printed circuit board) through an aviation socket, but also has an anti-interference filtering function.
In order to achieve the above object, the present invention provides the following solutions:
the multifunctional circuit interface board applied to GYK equipment comprises an European type socket unit, an electromagnetic compatibility electromagnetic interference protection filter unit and an aviation socket unit which are connected in sequence; the European socket unit and the aviation socket unit are both two-way communication units;
the aerial socket unit comprises a plurality of aerial sockets; each aviation socket is welded on the PCB through a wireless binding connection process;
the signals introduced by the aviation socket unit are output through the European socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit or the signals introduced by the European socket unit are output through the aviation socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit.
Optionally, the aviation socket is a welding pin type aviation socket.
Optionally, the aviation socket is an XCB series solder pin aviation socket.
Optionally, the number of the welding pin type aviation sockets is determined according to actual hardware requirements.
Optionally, the electromagnetic compatibility electromagnetic interference protection filtering unit includes a power electromagnetic interference protection filtering subunit and a signal electromagnetic interference protection filtering subunit.
Optionally, the power electromagnetic interference protection filter subunit comprises a fuse, a lightning surge absorption circuit, a pulse group absorption filter, an anti-reverse connection protection circuit and an output filter capacitor which are connected in sequence; the fusing type fuse is also connected with the aviation socket unit; the output filter capacitor is also connected with the European socket unit.
Optionally, the signal electromagnetic interference protection filtering subunit comprises a TVS protection tube and a magnetic bead filtering circuit which are sequentially connected; the TVS protection tube is also connected with the aviation socket unit; the magnetic bead filter circuit is also connected with the European type socket unit.
Optionally, the european style socket unit includes a plurality of european style sockets; the number of the European style sockets is determined according to actual hardware requirements.
Optionally, the European style socket is a 48-core European style socket.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the invention provides a multifunctional circuit interface board applied to GYK equipment, which comprises an European socket unit, an electromagnetic compatibility electromagnetic interference protection filter unit and an aviation socket unit which are connected in sequence; the aerial socket unit comprises a plurality of aerial sockets; each aviation socket is welded on the PCB through a wireless binding connection process; the signals introduced by the circuit interface board through the aviation socket unit are output through the European socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit or the signals introduced by the circuit interface board through the European socket unit are output through the aviation socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit. Therefore, the circuit interface board provided by the invention not only improves the reliability of signal connection introduced to the PCB board through the aviation socket, but also has the functions of lightning stroke surge protection, fast transient pulse group interference protection, electromagnetic anti-interference filtering and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic block diagram of a multifunctional circuit interface board applied to GYK equipment according to an embodiment of the invention;
fig. 2 is a schematic block diagram of an electromagnetic compatibility electromagnetic interference protection filter unit according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention aims to provide a multifunctional circuit interface board applied to GYK equipment, which not only improves the reliability of signal connection introduced to a PCB (printed circuit board) through an aviation socket, but also has an anti-interference filtering function.
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.
Noun interpretation
GYK device: the rail car operation control equipment.
European style socket: a board-to-board connector for a PCB board.
Electromagnetic compatibility (i.e. Electromagnetic Compatibility): by which is meant the ability of a device or system to operate satisfactorily in its electromagnetic environment without causing intolerable electromagnetic disturbance to any device in its environment.
Welding pin type aviation socket: an aerial socket that can be directly soldered onto a PCB board.
FIG. 1 is a schematic block diagram of a multifunctional circuit interface board applied to GYK equipment according to an embodiment of the invention.
Referring to fig. 1, a circuit interface board provided by the embodiment of the present invention includes an euro-type socket unit 1, an electromagnetic compatibility electromagnetic interference protection circuit unit 2, and an aviation socket unit 3, which are sequentially connected.
The aerial socket unit 3 includes a plurality of aerial sockets; each aviation socket is welded on the PCB through a wireless binding connection process. The aviation socket is a welding pin type aviation socket. Preferably, the aviation socket is an XCB series soldering pin aviation socket.
The European socket unit 1 and the aviation socket unit 2 are both two-way communication units, namely the European socket unit 1 is a signal output end or a signal input end of the circuit interface board; the aviation socket unit 3 is a signal input end or a signal output end of the circuit interface board.
The European-style socket unit 1 is mainly in butt joint with the backboard to complete signal transfer. The electromagnetic compatibility electromagnetic interference protection filtering unit 2 mainly completes electromagnetic interference protection filtering of input and output signals. The aviation socket unit 3 is mainly a hardware interface for connecting the GYK device with other devices or sensors.
The signal introduced by the circuit interface board through the aviation socket unit 3 is output through the European socket unit 1 after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit 2 or the signal introduced by the circuit interface board through the European socket unit 1 is output through the aviation socket unit 3 after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit 2.
Wherein the European style socket unit 1 comprises a plurality of European style sockets; the number of the European style sockets is determined according to actual hardware requirements. Preferably, the European style socket is a 48-core European style socket. As shown in fig. 1, the circuit interface board provided by the embodiment of the invention is in butt joint with the GYK backboard to use 3 groups of 48-core european style sockets.
The number of the welding pin type aviation sockets is determined according to actual hardware requirements. As shown in fig. 1, aviation sockets on a circuit interface board provided by the embodiment of the invention are numbered GX1, GX2, GX3, GX4, GX5, GX6, GX7, GX8, GX9, GX10, GX11 and GX 12. The 12 aviation sockets all adopt XCB series welding pin type aviation sockets. The circuit interface board introduces signals required by the GYK host through the aviation socket, and specifically comprises signals such as a speed sensor, a wind pressure sensor, working condition signals, braking signals, eight display lamps, a machine induction coil, a 24V power supply, RS422 signals, CAN signals, voice input/output and the like.
Fig. 2 is a schematic block diagram of an electromagnetic compatibility electromagnetic interference protection filter unit according to an embodiment of the present invention.
The electromagnetic compatibility electromagnetic interference protection filtering unit disclosed by the invention is used for protecting a 24V power supply of a rail car for supplying power to GYK equipment and filtering signal protection of a wind pressure sensor, a speed sensor, a working condition signal, a communication signal and the like.
The electromagnetic compatibility electromagnetic interference protection filtering unit enhances the anti-interference capability of a GYK device power line and a communication bus through electromagnetic interference protection of a GYK device input power supply and GYK device communication signals. The GYK interface board is added with an electromagnetic interference filter unit circuit and combined with electromagnetic interference protection circuits on other boards of GYK equipment, so that the GYK equipment integrally meets the electromagnetic compatibility requirement of the railway vehicle-mounted equipment.
The electromagnetic compatibility electromagnetic interference protection filtering unit comprises a power electromagnetic interference protection filtering subunit and a signal electromagnetic interference protection filtering subunit.
As shown in fig. 2, the power electromagnetic interference protection filter subunit mainly comprises a fuse, a lightning surge absorbing circuit, a pulse group absorbing filter, a reverse connection preventing protection circuit and an output filter capacitor which are connected in sequence; the fusing type fuse is also connected with the aviation socket unit; the output filter capacitor is also connected with the European socket unit.
The signal electromagnetic interference protection filter subunit mainly comprises a TVS protection tube and a magnetic bead filter circuit which are connected in sequence; the TVS protection tube is also connected with the aviation socket unit; the magnetic bead filter circuit is also connected with the European type socket unit;
the 24V power supply enters the European type socket unit after passing through a fuse type fuse, a lightning surge absorption circuit combined by a safety capacitor and a piezoresistor, a pulse group absorption filter, a differential mode inductor, a high-voltage ceramic chip capacitor, a reverse connection prevention protection circuit, a TVS tube and an output filter capacitor.
The working condition, braking and eight-display lamp signals are connected with a power resistor, a TVS tube and a magnetic bead filter circuit to protect the signals.
In order to further improve the connection reliability of GYK equipment and other equipment or sensors and increase the usability, the invention solves the defects of the original equipment internal manual wiring mode in the aspect of manufacturing process and signal interference problems, and applies the electromagnetic interference protection circuit device to GYK products formed by an interface board of the vehicle-mounted GYK equipment and other functional board cards together, thereby meeting the requirements of various electromagnetic compatibility of the rail vehicle GYK equipment, and simultaneously introducing a wireless connection aviation seat manufacturing process, so as to obtain the circuit interface board with electromagnetic compatibility electromagnetic interference protection and welding reliability. The circuit interface board solves the technical problems of troublesome production, manufacture, maintenance and disassembly of manual wiring, well compensates the technical problems of excessive reliability, usability, poor equipment shock resistance and the like of the manual internal wiring lead in the traditional chassis, and simultaneously avoids the signal interference problem.
Compared with the prior art, the invention has the following advantages:
1. the XCB series welding pin type aviation socket can be directly welded on the PCB by adopting a wireless binding connection process, so that the problem of welding false welding and misplug wiring in wired binding connection is avoided. And the wireless binding connection process is more suitable for the use environment of the vehicle-mounted equipment.
2. The circuit interface board PCB is provided with the electromagnetic compatibility electromagnetic interference protection circuit unit with functions of lightning surge, rapid transient pulse group, static electricity and the like, so that electromagnetic interference signals from the outside cannot enter the GYK equipment and do not affect the work of each board card of the GYK equipment, and meanwhile, electromagnetic signals generated by the GYK equipment cannot interfere other equipment on the rail car through a power supply and a communication cable, so that the GYK equipment meets the electromagnetic compatibility requirements of the on-car equipment of the rail car.
The principles and embodiments of the present invention have been described herein with reference to specific examples, the description of which is intended only to assist in understanding the methods of the present invention and the core ideas thereof; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.
Claims (6)
1. The multifunctional circuit interface board applied to GYK equipment is characterized by comprising an European socket unit, an electromagnetic compatibility electromagnetic interference protection filter unit and an aviation socket unit which are connected in sequence; the European socket unit and the aviation socket unit are both two-way communication units;
the aerial socket unit comprises a plurality of aerial sockets; each aviation socket is welded on the PCB through a wireless binding connection process;
the signals introduced by the aviation socket unit are output through the European socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit or the signals introduced by the European socket unit are output through the aviation socket unit after being subjected to electromagnetic interference protection and filtration by the electromagnetic compatibility electromagnetic interference protection and filtration unit;
the aviation socket is a welding pin type aviation socket;
the aviation socket is an XCB series welding pin type aviation socket;
the electromagnetic compatibility electromagnetic interference protection filtering unit comprises a power electromagnetic interference protection filtering subunit and a signal electromagnetic interference protection filtering subunit.
2. The circuit interface board of claim 1, wherein the number of pin-type aviation sockets is determined based on actual hardware requirements.
3. The circuit interface board of claim 1, wherein the power electromagnetic interference protection filter subunit comprises a fuse, a lightning surge absorbing circuit, a pulse group absorbing filter, a reverse connection preventing protection circuit and an output filter capacitor which are connected in sequence; the fusing type fuse is also connected with the aviation socket unit; the output filter capacitor is also connected with the European socket unit.
4. The circuit interface board of claim 1, wherein the signal electromagnetic interference protection filter subunit comprises a TVS protection tube and a magnetic bead filter circuit connected in sequence; the TVS protection tube is also connected with the aviation socket unit; the magnetic bead filter circuit is also connected with the European type socket unit.
5. The circuit interface board of claim 1, wherein the euro-type socket unit comprises a plurality of euro-type sockets; the number of the European style sockets is determined according to actual hardware requirements.
6. The circuit interface board of claim 5, wherein the euro socket is a 48-core euro socket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199770.8A CN109616835B (en) | 2018-10-16 | 2018-10-16 | Multifunctional circuit interface board applied to GYK equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811199770.8A CN109616835B (en) | 2018-10-16 | 2018-10-16 | Multifunctional circuit interface board applied to GYK equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109616835A CN109616835A (en) | 2019-04-12 |
| CN109616835B true CN109616835B (en) | 2024-03-22 |
Family
ID=66001657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811199770.8A Active CN109616835B (en) | 2018-10-16 | 2018-10-16 | Multifunctional circuit interface board applied to GYK equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109616835B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5779502A (en) * | 1995-06-06 | 1998-07-14 | Ast Research | Socket integrating high frequency capacitor assembly |
| CN200980087Y (en) * | 2006-12-11 | 2007-11-21 | 苏波 | A wireless safety protection device for locomotives |
| CN101404453A (en) * | 2008-10-31 | 2009-04-08 | 崧顺电子（深圳）有限公司 | Anti-interference switch stabilized voltage supply |
| CN202196160U (en) * | 2011-09-01 | 2012-04-18 | 北京嘉捷恒信能源技术有限责任公司 | High-reliability Li-ion battery pack detection panel device for navigation propulsion power units and electronic equipment power units |
| CN103050841A (en) * | 2012-12-19 | 2013-04-17 | 庄景松 | Electric socket connector with universal serial port |
| CN103887965A (en) * | 2012-12-19 | 2014-06-25 | 研祥智能科技股份有限公司 | Power supply design circuit with high-level EMC and safety regulation performance |
| CN106170164A (en) * | 2016-07-01 | 2016-11-30 | 上海铁路车辆工贸有限公司淮南分公司 | A kind of novel rail LED light source illuminating lamp |
| CN107317198A (en) * | 2017-08-18 | 2017-11-03 | 陕西益华电气股份有限公司 | A kind of buckle-type BNC radio frequency three coaxial connectors |
| CN107809032A (en) * | 2017-11-24 | 2018-03-16 | 浙江天时电器有限公司 | A kind of wireless and passive socket |
| CN208970854U (en) * | 2018-10-16 | 2019-06-11 | 西北铁道电子股份有限公司 | One kind being applied to GYK equipment and has multi-functional circuit interface plate |
-
2018
- 2018-10-16 CN CN201811199770.8A patent/CN109616835B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5779502A (en) * | 1995-06-06 | 1998-07-14 | Ast Research | Socket integrating high frequency capacitor assembly |
| CN200980087Y (en) * | 2006-12-11 | 2007-11-21 | 苏波 | A wireless safety protection device for locomotives |
| CN101404453A (en) * | 2008-10-31 | 2009-04-08 | 崧顺电子（深圳）有限公司 | Anti-interference switch stabilized voltage supply |
| CN202196160U (en) * | 2011-09-01 | 2012-04-18 | 北京嘉捷恒信能源技术有限责任公司 | High-reliability Li-ion battery pack detection panel device for navigation propulsion power units and electronic equipment power units |
| CN103050841A (en) * | 2012-12-19 | 2013-04-17 | 庄景松 | Electric socket connector with universal serial port |
| CN103887965A (en) * | 2012-12-19 | 2014-06-25 | 研祥智能科技股份有限公司 | Power supply design circuit with high-level EMC and safety regulation performance |
| CN106170164A (en) * | 2016-07-01 | 2016-11-30 | 上海铁路车辆工贸有限公司淮南分公司 | A kind of novel rail LED light source illuminating lamp |
| CN107317198A (en) * | 2017-08-18 | 2017-11-03 | 陕西益华电气股份有限公司 | A kind of buckle-type BNC radio frequency three coaxial connectors |
| CN107809032A (en) * | 2017-11-24 | 2018-03-16 | 浙江天时电器有限公司 | A kind of wireless and passive socket |
| CN208970854U (en) * | 2018-10-16 | 2019-06-11 | 西北铁道电子股份有限公司 | One kind being applied to GYK equipment and has multi-functional circuit interface plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109616835A (en) | 2019-04-12 |
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