CN202817362U - Locomotive low-voltage connector - Google Patents
Locomotive low-voltage connector Download PDFInfo
- Publication number
- CN202817362U CN202817362U CN 201220524436 CN201220524436U CN202817362U CN 202817362 U CN202817362 U CN 202817362U CN 201220524436 CN201220524436 CN 201220524436 CN 201220524436 U CN201220524436 U CN 201220524436U CN 202817362 U CN202817362 U CN 202817362U
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- CN
- China
- Prior art keywords
- housing
- circuit board
- voltage connector
- core
- wire harness
- 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.)
- Expired - Fee Related
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Abstract
The utility model specifically discloses a locomotive low-voltage connector, solving the problems that traditionally, a large number of cables are needed; the installation and the maintenance are inconvenient; connection portions are easy to be corroded by water and dust; and short circuits are easy to cause. The locomotive low-voltage connector comprises a housing. A distribution circuit board is arranged inside the housing. Two 15-core connectors are connected with and extend out of the distribution circuit board through shielding wire harnesses. A 37-core connector is arranged on the housing. A path of power supply and three sets of control signals are connected between the 37-core connector and the distribution circuit board. The housing adopts an epoxy pouring sealant. The shielding wire harnesses are sleeved by thermal-shrinkable sleeves at a certain distance. A heat gun is utilized so as to make the shielding wire harnesses be shaped up through thermal shrinkage. According to the utility model, the number of the cables is reduced; the space is saved; the layout is simplified; the problem of inconvenience of installation and maintenance is solved; and the resistance to the external environment is enhanced.
Description
Technical field
The utility model relates to the circuit connecting mechanism that locomotive or motor-car are used, and is specially a kind of locomotive low voltage connector.
Background technology
Along with the development of electronic technology and locomotive AC technology, and the extensive use of high-power IGBT on current transformer, power cell is as the core component of whole current transformer, also just towards the future development of high frequency, miniaturization, intellectuality, high reliability.The command signal that locomotive control unit sends need to could arrive power cell through the transmission of certain distance, and can the situation of signal transmission will be related to current transformer normally, reliable work.The major function of low voltage connector be the power supply, drive pulse signal etc. of transmission drive circuit to power cell, also the fault-signal of power cell is fed back to control unit simultaneously.Every drive plate needs independently power supply and drive control signal.Conventional method adopts the cables such as twisted-pair feeder, shielding conductor to form wire harness, connects by connecting terminal block or metal connector, carries out the transmission of signal.The problem that exists is:
1) number of cables is more, and structure is too fat to move, is unfavorable for that less locomotive power unit, space uses;
2) globality is not strong, inconvenience is installed, maintain and replace when yet being unfavorable for fault;
3) externally the junction seals not, is subject to the corrosion of water and dust, easily short circuit.
Summary of the invention
Traditional cable quantity is more, installation and maintenance are inconvenient, the junction is subject to water and the problem of the easy short circuit of dust burn in order to solve for the utility model, and a kind of locomotive low voltage connector is provided.
The utility model is to adopt following technical scheme to realize: the locomotive low voltage connector, comprise housing, be provided with wired circuit board in the housing, wired circuit board connects two 15 core connectors by shielded wire harness, housing is provided with 37 core connectors, wherein is connected with one road power supply and three groups of control signals between 37 core connectors and the wired circuit board, and housing adopts epoxy pouring sealant, shielded wire harness keeps at a certain distance away and puts heat-shrinkable T bush, with the heat gun pyrocondensation shielded wire harness is shaped.
During use, 37 core connectors link to each other with the current transformer control unit, be used for accepting control signal, wired circuit board is placed in the housing, housing is provided with metal aperture and is used for fixedly low voltage connector, also as the earth point of shielded wire harness, shielded wire harness is divided into two strands, and transfer control signal is given the IGBT drive circuit of upper and lower brachium pontis respectively.
Adopt circuit board to realize the multichannel distribution of signal, simplified the wiring of control system.Control system only need to provide one road power supply signal like this, for the IGBT drive circuit of upper and lower bridge arm, also only need to provide one tunnel drive control signal, thereby low voltage connector can drive six tunnel IGBT drive circuits independently.Epoxy pouring sealant adopts bicomponent epoxy resin glue, and its host and curing agent separate packing and deposit, and with the front AB mixing match that carries out according to a specific ratio, just can carry out the embedding operation after stirring.It is liquid that casting glue belongs to before uncured, have preferably mobile, colloid itself for metal, wiring board, electronic devices and components and working of plastics without corrosion.Solidify the rear surface bright, smooth, do not ftracture.The finished product thermal diffusivity is good, and hardness is high, and is strong to the resistance of external shock, vibrations.It has avoided the direct exposure of device, improves the performance such as waterproof, protection against the tide, anticorrosion of device, has also improved between inner member, circuit and has insulated.The environmental protection flame retardant of material own, nontoxic, meet harsh environmental requirement.The use of casting glue make connector have preferably globality, and its density is lower, also is conducive to device miniaturization, light-weight design.
The beneficial effects of the utility model are as follows:
1) adopts wired circuit board, reduced number of cables, save the space, simplified topology;
2) connected mode of the better plugs and sockets of employing globality has solved the problem of installation and maintenance inconvenience;
3) adopt epoxy pouring sealant, make connection more firm, also increased the resistance of the to external world environment of parts.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is circuit theory schematic diagram of the present utility model.
Among the figure: 1-15 core connector, 2-shielded wire harness, 3-housing, 4-37 core connector, B-wired circuit board, D-IGBT drive circuit, E-power supply, F-control signal.
Embodiment
By reference to the accompanying drawings execution mode of the present utility model is further described.
The locomotive low voltage connector, comprise housing 3, be provided with wired circuit board B in the housing 3, wired circuit board B connects two 15 core connectors 1 by shielded wire harness 2, housing 3 is provided with 37 core connectors 4, wherein is connected with one road power supply E and three groups of control signal F between 37 core connectors 4 and the wired circuit board B, and housing 3 adopts epoxy pouring sealant, shielded wire harness 2 keeps at a certain distance away and puts heat-shrinkable T bush, with the heat gun pyrocondensation shielded wire harness 2 is shaped.
During use, 37 core connectors 4 link to each other with the current transformer control unit, be used for accepting control signal, wired circuit board is placed in the housing 3, housing 3 is provided with metal aperture and is used for fixedly low voltage connector, also as the earth point of shielded wire harness 2, shielded wire harness 2 is divided into two strands, and transfer control signal is given the IGBT drive circuit D of upper and lower brachium pontis respectively.
Claims (1)
1. locomotive low voltage connector, it is characterized in that: comprise housing (3), be provided with wired circuit board (B) in the housing (3), wired circuit board (B) connects two 15 core connectors (1) by shielded wire harness (2), housing (3) is provided with 37 core connectors (4), wherein be connected with one road power supply (E) and three groups of control signals (F) between 37 core connectors (4) and the wired circuit board (B), housing (3) adopts epoxy pouring sealant, shielded wire harness (2) keeps at a certain distance away and puts heat-shrinkable T bush, with the heat gun pyrocondensation shielded wire harness (2) is shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524436 CN202817362U (en) | 2012-10-15 | 2012-10-15 | Locomotive low-voltage connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524436 CN202817362U (en) | 2012-10-15 | 2012-10-15 | Locomotive low-voltage connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202817362U true CN202817362U (en) | 2013-03-20 |
Family
ID=47876182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524436 Expired - Fee Related CN202817362U (en) | 2012-10-15 | 2012-10-15 | Locomotive low-voltage connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202817362U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882057A (en) * | 2012-10-15 | 2013-01-16 | 永济新时速电机电器有限责任公司 | Low-voltage connector for motor vehicle |
-
2012
- 2012-10-15 CN CN 201220524436 patent/CN202817362U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102882057A (en) * | 2012-10-15 | 2013-01-16 | 永济新时速电机电器有限责任公司 | Low-voltage connector for motor vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20171015 |