CN104852207A - Floating connector for use in mass transit vehicles - Google Patents
Floating connector for use in mass transit vehicles Download PDFInfo
- Publication number
- CN104852207A CN104852207A CN201510278815.0A CN201510278815A CN104852207A CN 104852207 A CN104852207 A CN 104852207A CN 201510278815 A CN201510278815 A CN 201510278815A CN 104852207 A CN104852207 A CN 104852207A
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- China
- Prior art keywords
- socket
- insulation board
- plug
- rail traffic
- traffic vehicles
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
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- Connector Housings Or Holding Contact Members (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses a floating connector for use in mass transit vehicles. The floating connector is used for offsetting a coupler slack. The connector comprises a plug and a socket. The plug and the socket are arranged on one group of couplers in need of connection of a mass transit vehicle. One insulation plate assembly in the plug and the socket is fixed-type, and the other insulation plate assembly in the plug and the socket is floating-type. The fixed insulation plate assembly is provided with guide pins and positioning pins. The plug and the socket are accurately positioned via the guide pins and the positioning pins when being jointed by insertion. A floating gap of the floating-type insulation plate assembly is larger than the coupler slack, so that influences of the coupler slack on the connector are offset. The floating connector has a good application prospection and suitable for industrial production.
Description
Technical field
The present invention relates to a kind of float connector for rail traffic vehicles, belong to rail traffic vehicles interconnection technique field.
Background technology
The effect that connector refers to by the signal of telecommunication or light signal and mechanical forces makes the function element of circuit or optical channel on-off or conversion, connect as the signal of telecommunication between device, assembly, equipment, system or light signal, signal transmission or electromagnetic energy, and there is not the change of distorted signals and energy loss between keeping system and system, simple analogy, be exactly plug and socket, be widely used in the fields such as Aeronautics and Astronautics, military equipment, communications and transportation, communication, computer, automobile, industry, household electrical appliance.
The hitch connector of rail traffic vehicles is one of Primary Component of railcar equipment, hitch connector must realize higher mechanical performance, electric property and environmental performance standard, meet the requirement of highly reliable, resistance to environment, anti-interference, anti-vibrating and impact and the aspect such as high density, high-speed transfer, this makes rail traffic vehicles connector industry in the R & D design, manufacturing process, technological development etc. of product, be in the middle and high end level of industry.
At present, the hitch connector of rail traffic vehicles, as shown in Figure 1, be made up of plug body 101 and socket 102, plug body 101 and socket 102 are assemblied on the hitch contact-making surface of two docking respectively, its contact forms by moving contact 103 and fixed contact 104, moving contact 103 and fixed contact 104 are assemblied on insulation board 105 respectively, and the flange of the pressure line terminal 106 be threaded connection and the tooth be arranged on pressure line terminal 106 overlap 107 claw location, as described in Figure 2, moving contact 103 is push button, comprise overcoat 201, contact 202, interior hat spring 203, spring 204 and contact pin 205 form, the tooth be illustrated in figure 3 on pressure line terminal 106 overlaps the concrete structure of 107 claws, during use, during two hitch docking, be arranged on plug and socket on hitch to inserting, contact in moving contact and fixed contact are collided, contact overcomes spring force and moves to contact pin direction, until two hitch face laminatings, contact works under the state ensureing certain decrement at moving contact.
But, because hitch has certain tolerance in design and manufacturing process, certain gap can be there is after hitch docking, cause vehicle hitch when turning or descending will there is half of gap large, the state that half of gap is little, because the speed of a motor vehicle is fast, the right one side of something of hitch connector contact can be compressed, second half does not reach the speed of bypassing due to spring-compensating speed, moving contact is caused to be separated with the fixed contact short time, thus causing electric signal transmission to interrupt, electric signal transmission is unstable, affects the service data transmission of rail vehicle.
Summary of the invention
The present invention seeks to there is gap to overcome existing hitch connector, when the turning of rail vehicle or descending, because the speed of a motor vehicle is fast, the contact of hitch connector can be compressed one side of something, second half does not reach the speed of bypassing due to spring-compensating speed, cause moving contact to be separated with the fixed contact short time, thus cause electric signal transmission to interrupt, the problem of electric signal transmission instability.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of float connector for rail traffic vehicles, it is characterized in that: comprise plug and socket, described plug, on the hitch that one group of needs that socket is separately positioned on rail traffic vehicles connect, be fixed insulation board assembly in described plug, and the housing corresponding with it is rigidly connected, be floating type insulation board assembly in socket, and there is flying height between the housing corresponding with it, fixed insulation board assembly arranges guide finger, alignment pin, fixed insulation board assembly and floating type insulation board assembly are when plugging together, pass through guide finger, alignment pin is accurately located, the flying height of floating type insulation board assembly is greater than the gap between hitch, the gap be used between counteracting hitch is on the impact of float connector, after fixed insulation board assembly and floating type insulation board components apart, floating type insulation board assembly can automatically reset.
Aforesaid a kind of float connector for rail traffic vehicles, it is characterized in that: the insulation board assembly in described plug is fixed insulation board assembly, comprise plug casing, guide finger, plug insulation board, contact pin and alignment pin, described plug insulation board is embedded in plug casing, and described contact pin, guide finger, alignment pin are distributed on plug insulation board;
Insulation board assembly in described socket is floating type insulation board assembly, comprise Socket casing, socket insulation board, jack, frustum, back-moving spring, spring shaft, socket bonnet, tail cover and cable joint, described socket insulation board is embedded in Socket casing, the jack with contact pin position mating shapes is provided with in described socket insulation board, with the guide pin hole of guide finger position mating shapes, with the dowel hole of alignment pin position mating shapes, the border of described socket insulation board is provided with several floating holes, each floating Kong Jun is embedded with frustum, the rear end of described frustum is connected with socket bonnet by back-moving spring, spring shaft is socketed with in described back-moving spring, one end of described spring shaft is connected with the rear end of frustum, the other end of described spring shaft is embedded in socket bonnet, the rear end of described socket bonnet is connected with tail cover, described cable joint is arranged on the rear end of tail cover.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: described fixed insulation board component is arranged in plug casing or Socket casing, and described floating insulation board assembly is arranged in plug casing or Socket casing.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: described guide finger is odd-shaped cross section guide finger, and described guide pin hole is the hole matched with guide finger.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: the quantity of described guide finger is one or more, and the quantity of alignment pin is one or more.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: the quantity that the border of described socket insulation board is provided with floating hole is one or more, is distributed on the border of socket insulation board.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: the small end of described frustum is placed in corresponding floating hole, and the large end of described frustum, under the effect of back-moving spring, makes socket insulation board reset.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: arrange jack position in the contact pin arranged in described plug, socket replaceable, can arrange jack, can arrange contact pin in described socket in described plug.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: the contact position of described plug casing, Socket casing is provided with sealing ring.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: described socket bonnet is fixed by screws in the rear end of Socket casing, the radial direction of described socket bonnet is provided with sealing ring, realizes sealing with Socket casing.
Aforesaid a kind of float connector for rail traffic vehicles, is characterized in that: be applied in docking between rail traffic vehicles or rail traffic vehicles upper-part and occur gap location.
The invention has the beneficial effects as follows: the float connector for rail traffic vehicles of the present invention, for offsetting coupler slack, connector comprises plug and socket, described plug, on the hitch that one group of needs that socket is separately positioned on rail traffic vehicles connect, described plug, insulation board assembly in socket one of them be fixed, another is floating type, fixed insulation board assembly is provided with guide finger, alignment pin, by guide finger when plug and socket plug together, alignment pin is accurately located, the flying height of floating type insulation board assembly is greater than the gap between hitch, thus offset coupler slack to the impact of connector, have a good application prospect, be applicable to industrial production.
Accompanying drawing explanation
Fig. 1 is the structural representation of traditional hitch connector.
Fig. 2 is the structural representation of traditional moving contact.
Fig. 3 is the structural representation of traditional pressure line terminal.
Fig. 4 is the schematic diagram after the connection of the float connector for rail traffic vehicles of the present invention.
Fig. 5 is the structural representation of plug of the present invention.
Fig. 6 is the structural representation that socket insulation board of the present invention connects guide finger.
Fig. 7 is the structural representation of socket of the present invention.
Fig. 8 is the cutaway view of socket of the present invention.
Fig. 9 is the structural representation that floating hole of the present invention connects back-moving spring.
Figure 10 is the schematic diagram of plug of the present invention and plug alignment pin fine positioning.
The implication marked in accompanying drawing is as follows:
101: plug body; 102: socket; 103: moving contact; 104: fixed contact; 105: insulation board; 106: pressure line terminal; 107: tooth cover; 201: overcoat; 202: contact; 203: interior hat spring; 204: spring; 205: contact pin; 1: plug; 2: socket; 3: plug casing; 4: guide finger; 5: plug insulation board; 6: contact pin; 7: alignment pin; 8: Socket casing; 9: socket insulation board; 10: jack; 11: frustum; 12: back-moving spring; 13: spring shaft; 14: socket bonnet; 15: tail cover; 16: guide pin hole; 18: hole of floating; 19: cable joint; 20: sealing ring; 21: screw; 22: packing ring; 23: dowel hole.
Embodiment
Below in conjunction with specification and accompanying drawing, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Float connector for rail traffic vehicles of the present invention, comprise plug and socket, described plug, on the hitch that one group of needs that socket is separately positioned on rail traffic vehicles connect, be fixed insulation board assembly in described plug, and the housing corresponding with it is rigidly connected, be floating type insulation board assembly in socket, and there is flying height between the housing corresponding with it, fixed insulation board assembly arranges guide finger, alignment pin, fixed insulation board assembly and floating type insulation board assembly are when plugging together, pass through guide finger, alignment pin is accurately located, the flying height of floating type insulation board assembly is greater than the gap between hitch, the gap be used between counteracting hitch is on the impact of float connector, after fixed insulation board assembly and floating type insulation board components apart, floating type insulation board assembly can automatically reset, as shown in Figure 4, one embodiment of the invention, specifically comprise, plug 1 and socket 2, wherein, insulation board assembly in socket 1 is fixed insulation board assembly, insulation board assembly in socket 2 is floating type insulation board assembly, plug 1, on the hitch that one group of needs that socket 2 is separately positioned on rail traffic vehicles connect, as shown in Figures 5 and 6, described plug 1 comprises plug casing 3, guide finger 4, plug insulation board 5, contact pin 6 and alignment pin 7, plug insulation board 5 is embedded in plug casing 3, contact pin 6, alignment pin 7 is distributed on plug insulation board 5, guide finger 4 is odd-shaped cross section guide finger, described guide pin hole 16 is the hole matched with guide finger 4, the quantity of guide finger 4 is one or more, the quantity of alignment pin 7 is one or more, such as guide finger 4 is rhombus guide finger or many rhombuses guide finger, guide pin hole 16 is rhombus guide pin hole or many rhombuses guide pin hole, guide finger 4 is two further, three, four or five rhombus guide fingers, guide pin hole 16 is two, three, four or five rhombus guide pin hole, here guide finger 4 realizes the first location of plug and socket grafting process, alignment pin 7 realizes plug and socket grafting process and accurately locates, according to use occasion, can any one of selective guide pin 4 or alignment pin 7 use, as detent mechanism.
As shown in Figures 7 and 8, described socket 2 comprises Socket casing 8, socket insulation board 9, jack 10, frustum 11, back-moving spring 12, spring shaft 13, socket bonnet 14, tail cover 15 and cable joint 19, described Socket casing 8 and plug casing 3 mating shapes, described socket insulation board 9 is embedded in Socket casing 8, the jack 10 with contact pin 6 position mating shapes is provided with in described socket insulation board 9, with the guide pin hole 16 of guide finger 4 position mating shapes, with the dowel hole 23 of alignment pin 7 position mating shapes, as shown in Figure 9, the border of described socket insulation board 9 is provided with several floating holes 18, each floating hole 18 is all embedded with frustum 11, the rear end of described frustum 11 is connected with socket bonnet 14 by back-moving spring 12, spring shaft 13 is socketed with in described back-moving spring 12, one end of described spring shaft 13 is connected with the rear end of frustum 11, the other end of described spring shaft 13 is embedded in socket bonnet 14, the rear end of described socket bonnet 14 is connected with tail cover 15, described cable joint 19 is arranged on the rear end of tail cover 15, it is one or more for inserting the quantity that the border of insulation board 9 is provided with floating hole 18, be distributed on the border of socket insulation board 9, the small end of frustum 11 is placed in corresponding floating hole 18, the large end of frustum 11 is under the effect of back-moving spring 12, socket insulation board 9 is resetted.
Arrange jack 10 position in the contact pin 6 arranged in described plug 1, socket 2 replaceable, arrange jack 10, arrange contact pin 6 in described socket 2 in described plug 1, as required, design is convenient.
The contact position of described plug casing 3, Socket casing 8 is equipped with a circle sealing ring 20, is soft being tightly connected, prevents the wearing and tearing of rigid contact by contact position, increases resistance to wear, increases the service life.
Described socket bonnet 14 is fixed on the rear end of Socket casing 8 by screw 21, described screw 21 is provided with packing ring 22.
The course of work of the float connector for rail traffic vehicles of the present invention is as follows, is arranged on the plug and socket of the float connector on two hitches of docking respectively, and when vehicle docking, plug and socket is automatic butt with hitch docking.
(1) when vehicle docks with certain speed, first the guide pin hole that the guide finger that plug insulation assembly is provided with is provided with socket insulation assembly contacts, three that are provided with by socket insulation assembly rear or four the floating holes and back-moving spring be spacedly distributed, socket insulation assembly can be compressed and correcting voluntarily, ensure that guide finger inserts in guide pin hole smoothly, thus ensure the first guiding of plug and socket;
(2) when plug and socket inserts again, as shown in Figure 10, the head hemisphere face that the alignment pin that plug insulation assembly is provided with passes through inserts in dowel hole that socket insulation assembly is arranged smoothly, realizes essence guiding;
(3) plug and socket continues to insert, contact pin docks with jack simultaneously, until fit in plug insulation assembly and socket insulation assembly front, contact pin and jack plug together completely, and plug and socket continues to insert again, the sealing ring of the contact position of plug casing, Socket casing is adjacent to mutually, until the laminating of two hitch contact-making surfaces, as shown in Figure 1, now compress socket insulation assembly to draw back the size of T, now in running order, hitch docking is complete.
(4) in actual working state, due to foozle and the safety clearance required when docking of each parts of hitch, certain gap can be there is in two hitch binding faces in motion process, plug insulation assembly and socket insulation assembly precision-fit is made by alignment pin, plug and socket built-in electrical insulation assembly forms entirety, the reduced size T that socket insulation board is preset, ensure that connector reliably connects in vibration environment, when unblock hitch, hitch separately, plug and socket being separately automatically separated with hitch, the frustum of socket insulation assembly by being provided with between three floating holes and back-moving spring, by spring pressure, socket insulation board is automatically reset the size of T, effectively ensure that plug and socket plugging together smoothly next time.
It is right that the present invention adopts contact pin type to contact, even if hitch is after the certain time limit of use, due to wearing and tearing or distortion, dimensional tolerance is caused to increase, hitch binding face gap exceedes connector predesigned compensation gap, contacts extracting certain size, as long as do not deviate from, still can carry out normal electrical signal transmission, greatly improve the practicality of this connector.
Float connector for rail traffic vehicles of the present invention, to be applied on rail traffic vehicles or rail traffic vehicles docking between each parts and to occur gap location, to eliminate gap, ensures normal electrical signal transmission, greatly improves the practicality of this connector.
More than describe and diagram, describe general principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection range is defined by appending claims and equivalent thereof.
Claims (11)
1. the float connector for rail traffic vehicles, it is characterized in that: comprise plug (1) and socket (2), described plug (1), on the hitch that one group of needs that socket (2) is separately positioned on rail traffic vehicles connect, be fixed insulation board assembly in described plug (1), and the housing corresponding with it is rigidly connected, be floating type insulation board assembly in socket (2), and there is flying height between the housing corresponding with it, fixed insulation board assembly is arranged guide finger (4), alignment pin (7), fixed insulation board assembly and floating type insulation board assembly are when plugging together, by guide finger (4), alignment pin (7) is accurately located, the flying height of floating type insulation board assembly is greater than the gap between hitch, the gap be used between counteracting hitch is on the impact of float connector, after fixed insulation board assembly and floating type insulation board components apart, floating type insulation board assembly can automatically reset.
2. a kind of float connector for rail traffic vehicles according to claim 1, it is characterized in that: the insulation board assembly in described plug (1) is fixed insulation board assembly, comprise plug casing (3), guide finger (4), plug insulation board (5), contact pin (6) and alignment pin (7), described plug insulation board (5) is embedded in plug casing (3), and described contact pin (6), guide finger (4), alignment pin (7) are distributed on plug insulation board (5);
Insulation board assembly in described socket (2) is floating type insulation board assembly, comprise Socket casing (8), socket insulation board (9), jack (10), frustum (11), back-moving spring (12), spring shaft (13), socket bonnet (14), tail cover (15) and cable joint (19), described socket insulation board (9) is embedded in Socket casing (8), the jack (10) with contact pin (6) position mating shapes is provided with in described socket insulation board (9), with the guide pin hole (16) of guide finger (4) position mating shapes, with the dowel hole (23) of alignment pin (7) position mating shapes, the border of described socket insulation board (9) is provided with several floating holes (18), each floating hole (18) is all embedded with frustum (11), the rear end of described frustum (11) is connected with socket bonnet (14) by back-moving spring (12), spring shaft (13) is socketed with in described back-moving spring (12), one end of described spring shaft (13) is connected with the rear end of frustum (11), the other end of described spring shaft (13) is embedded in socket bonnet (14), the rear end of described socket bonnet (14) is connected with tail cover (15), described cable joint (19) is arranged on the rear end of tail cover (15).
3. a kind of float connector for rail traffic vehicles according to claim 1 and 2, it is characterized in that: described fixed insulation board component is arranged in plug casing (3) or Socket casing (8), and described floating insulation board assembly is arranged in plug casing (3) or Socket casing (8).
4. a kind of float connector for rail traffic vehicles according to claim 2, is characterized in that: described guide finger (4) is odd-shaped cross section guide finger, and described guide pin hole (16) is the hole matched with guide finger (4).
5. a kind of float connector for rail traffic vehicles according to claim 2, is characterized in that: the quantity of described guide finger (4) is one or more, and the quantity of alignment pin (7) is one or more.
6. a kind of float connector for rail traffic vehicles according to claim 2, is characterized in that: the quantity that the border of described socket insulation board (9) is provided with floating hole (18) is one or more, is distributed on the border of socket insulation board (9).
7. a kind of float connector for rail traffic vehicles according to claim 2, it is characterized in that: the small end of described frustum (11) is placed in corresponding floating hole (18), the large end of described frustum (11), under the effect of back-moving spring (12), makes socket insulation board (9) reset.
8. a kind of float connector for rail traffic vehicles according to claim 2, it is characterized in that: in the contact pin (6) arranged in described plug (1), socket (2), jack (10) position is set replaceable, in described plug (1), jack (10) can be set, in described socket (2), contact pin (6) can be set.
9. a kind of float connector for rail traffic vehicles according to claim 2, is characterized in that: the contact position of described plug casing (3), Socket casing (8) is provided with sealing ring (20).
10. a kind of float connector for rail traffic vehicles according to claim 2, it is characterized in that: described socket bonnet (14) is fixed on the rear end of Socket casing (8) by screw (21), the radial direction of described socket bonnet (14) is provided with sealing ring, realizes sealing with Socket casing (8).
11. a kind of float connectors for rail traffic vehicles according to claim 1-9, is characterized in that: be applied in docking between rail traffic vehicles or rail traffic vehicles upper-part and occur gap location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278815.0A CN104852207B (en) | 2015-05-27 | 2015-05-27 | A kind of float connector for rail traffic vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510278815.0A CN104852207B (en) | 2015-05-27 | 2015-05-27 | A kind of float connector for rail traffic vehicles |
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| Publication Number | Publication Date |
|---|---|
| CN104852207A true CN104852207A (en) | 2015-08-19 |
| CN104852207B CN104852207B (en) | 2017-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510278815.0A Active CN104852207B (en) | 2015-05-27 | 2015-05-27 | A kind of float connector for rail traffic vehicles |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106335517A (en) * | 2016-08-31 | 2017-01-18 | 中车青岛四方机车车辆股份有限公司 | Draw gear structure and vehicle with the same |
| CN107359447A (en) * | 2017-07-11 | 2017-11-17 | 深圳市为致康科技有限公司 | A kind of spring thimble and preparation method of built-in hat spring |
| CN107732571A (en) * | 2017-09-05 | 2018-02-23 | 南京康尼科技实业有限公司 | A kind of electric connector for rail traffic vehicles |
| CN106252987B (en) * | 2016-09-14 | 2018-06-08 | 中车青岛四方车辆研究所有限公司 | Floating type multicore electrical cnnector |
| CN109066227A (en) * | 2018-08-06 | 2018-12-21 | 四川永贵科技有限公司 | A kind of hitch connector with network function |
| CN109870657A (en) * | 2019-02-14 | 2019-06-11 | 株洲福德轨道交通研究院有限公司 | Floating plug-assembly |
| CN110112599A (en) * | 2019-06-12 | 2019-08-09 | 四川永贵科技有限公司 | A kind of power connector suitable for high current |
| CN112810655A (en) * | 2021-01-13 | 2021-05-18 | 中车青岛四方机车车辆股份有限公司 | Electric coupler connector and reconnection motor train unit |
| CN113937579A (en) * | 2021-10-26 | 2022-01-14 | 四川永贵科技有限公司 | Automatic electric connector used between carriages |
| CN114552267A (en) * | 2022-03-02 | 2022-05-27 | 广东韶钢松山股份有限公司 | Coupler electrical connector |
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| CN106335517B (en) * | 2016-08-31 | 2018-09-25 | 中车青岛四方机车车辆股份有限公司 | Structure of couplers and vehicle with it |
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| CN107732571B (en) * | 2017-09-05 | 2023-12-26 | 南京康尼科技实业有限公司 | Electric connector for rail transit vehicle |
| CN107732571A (en) * | 2017-09-05 | 2018-02-23 | 南京康尼科技实业有限公司 | A kind of electric connector for rail traffic vehicles |
| CN109066227A (en) * | 2018-08-06 | 2018-12-21 | 四川永贵科技有限公司 | A kind of hitch connector with network function |
| CN109870657A (en) * | 2019-02-14 | 2019-06-11 | 株洲福德轨道交通研究院有限公司 | Floating plug-assembly |
| CN110112599A (en) * | 2019-06-12 | 2019-08-09 | 四川永贵科技有限公司 | A kind of power connector suitable for high current |
| CN112810655A (en) * | 2021-01-13 | 2021-05-18 | 中车青岛四方机车车辆股份有限公司 | Electric coupler connector and reconnection motor train unit |
| CN113937579A (en) * | 2021-10-26 | 2022-01-14 | 四川永贵科技有限公司 | Automatic electric connector used between carriages |
| CN113937579B (en) * | 2021-10-26 | 2023-12-05 | 四川永贵科技有限公司 | Automatic electric connector for carriage |
| CN114552267A (en) * | 2022-03-02 | 2022-05-27 | 广东韶钢松山股份有限公司 | Coupler electrical connector |
Also Published As
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| CN104852207B (en) | 2017-11-14 |
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