CN113381236B - Telescopic electric connector for blind insertion - Google Patents

Telescopic electric connector for blind insertion Download PDF

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Publication number
CN113381236B
CN113381236B CN202110543494.8A CN202110543494A CN113381236B CN 113381236 B CN113381236 B CN 113381236B CN 202110543494 A CN202110543494 A CN 202110543494A CN 113381236 B CN113381236 B CN 113381236B
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electric connector
connector
electrical connector
composite
electrical
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CN113381236A (en
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唐宝富
余觉
吕建路
顾叶青
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CETC 14 Research Institute
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CETC 14 Research Institute
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/56Means for preventing chafing or fracture of flexible leads at outlet from coupling part
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

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  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Connector Housings Or Holding Contact Members (AREA)

Abstract

The invention discloses a telescopic electric connector for blind plugging, which is formed by coaxially and serially connecting 3 electric connectors from left to right in sequence. The left electric connector is used as a socket and is connected with the fixing plate through a flange. The middle electric connector and the right electric connector are combined and packaged to form a compound electric connector capable of linearly stretching, wherein the right electric connector is fixedly installed, the middle electric connector is fixed with the stretching plate through a flange and can relatively slide along the axis, and the middle electric connector is plugged in or disconnected with the left electric connector under the action of external force, so that the whole power supply link is quickly switched on and off; because the electric connector structure self possesses sharp flexible ability, whole blind plugging has realized switching on or breaking off when multicore power link, has avoided pulling the heavy cable at the connector butt joint in-process, greatly reduced the connector installation to the intensity of labour who inserts the process, to improving the efficiency and the automation level of electric connector long stroke plug interconnection process significant.

Description

Telescopic electric connector for blind insertion
Technical Field
The invention relates to the technical field of novel electric connectors, in particular to a telescopic electric connector for blind plugging.
Background
The electric connector is an indispensable important component in the electrical equipment, is used at a blocked position in a circuit, and can erect a bridge for communicating the circuit at any time according to the requirements of users to realize the preset function of the electrical equipment. With the continuous development of electrical automation technology, higher and higher requirements are put forward on the automatic blind-mating performance of the electrical connector. Particularly in the application fields of large-scale weaponry, aerospace, mining machinery and the like, the electric connectors used at key parts often have the problems of high connecting voltage, more inserting and core-combining numbers, large joint volume, heavy dragging cables, huge overall inserting and pulling force, narrow installation space and the like. Under the condition, the connector is plugged and pulled in a manual cable pulling mode, so that the working efficiency is low, the labor intensity is high, the installation and the operation are inconvenient, and the cable is pulled for a long time to cause skin damage and even possibly cause serious safety problems. Therefore, it is highly desirable to design an electrical connector for long-stroke linear mating, which improves the automation level of the blind-mating interconnection of the connectors.
Disclosure of Invention
The present invention is directed to a retractable electrical connector for blind mating, which solves the above problems.
In order to achieve the purpose, the invention provides the following technical scheme:
a telescopic electric connector for blind insertion is composed of 3 electric connectors which are coaxial and connected in series from left to right. The left electric connector is used as a socket and is connected with the fixing plate through a flange. The middle electric connector and the right electric connector are combined and packaged to form a compound electric connector which can be linearly stretched. The right side electric connector is fixedly installed, the middle electric connector is fixed with the expansion plate through the flange and can slide relatively along the axis, and the middle electric connector is plugged in or disconnected with the left side electric connector under the action of external force, so that the whole power supply link can be quickly switched on and off. The expansion plate is connected with power devices such as hydraulic power devices, and full-automatic insertion and interconnection of the electric connectors can be realized.
As a further scheme of the invention: the intermediate electrical connector is divided into a front end and a rear end by a mounting flange. Wherein, the rear end of the connector is distributed with a plurality of power pins and always keeps a plugging connection state with the jacks of the right electric connector, and the middle electric connector and the right electric connector jointly form a linear telescopic composite electric connector. The front end of the middle electric connector is distributed with a plurality of power jacks which are separated from the left electric connector in an initial state. When the linear telescopic composite electric connector is under the stretching action of an external force, the middle electric connector slowly slides to the left side and finally is in contact insertion with the left electric connector, and the whole power supply link is conducted.
As a further scheme of the invention: in order to realize the linear telescopic motion of the composite electric connector, a guide pin and a guide pin hole are respectively arranged in the middle of the middle electric connector and the right electric connector, and the connector pins and the jacks are circumferentially distributed around the periphery of the guide pin and the guide hole. Because the middle electric connector contact pin needs accurate circumferential positioning with being connected between the right side electric connector jack that corresponds, 180 distribution set up two direction parallel keys on the uide pin to prevent that middle connector from taking place the circumference skew for the right side connector. Through the design of the guide pin matching and the guide flat key matching, the middle electric connector only has the freedom degree of linear telescopic motion relative to the right electric connector, and therefore the motion reliability of the linear telescopic composite electric connector is guaranteed.
As a further scheme of the invention: in order to eliminate radial errors and circumferential errors in the process of inserting the linear telescopic composite electric connector and the left side connector socket in a butting mode, a floating sleeve is arranged on a mounting flange of the left side electric connector, and a mounting screw penetrates through the floating sleeve to be connected with a socket fixing plate in a mounting mode. Two positioning pin holes are symmetrically arranged on the flange of the left electric connector in a 180-degree distribution manner; correspondingly, two positioning pins are arranged at the front end of the mounting flange of the middle electric connector. Through the matching of the two pairs of positioning pin holes, the accurate correction of the butting error of the composite electric connector and the socket is realized.
As a further scheme of the invention: the middle electric connector is provided with the radial sealing ring inside the rear end cylinder body and is sealed with the outer cylinder body of the right electric connector, so that the good safety protection characteristic of the linear telescopic composite electric connector is ensured. Similarly, a left radial sealing ring is arranged inside the left electric connector barrel, when the linear telescopic composite electric connector is inserted into the left socket, the sealing ring is sealed with the front end outer barrel of the middle electric connector, and reliability and safety of power supply link communication are guaranteed.
As a further scheme of the invention: the matching position of the middle electric connector and the right electric connector in the composite electric connector is fixedly provided with a rubber sealing ring around one end of the middle electric connector, the arrangement of the rubber sealing ring does not influence the insertion between the middle electric connector and the right electric connector, and a plurality of through holes are arranged on the rubber sealing ring in a way of penetrating through the rubber ring and surrounding the inner wall of the middle electric connector, when the composite electric connector is required to be used in rainwater or other humid environments, the sealing rubber ring can prevent rainwater from entering the composite electric connector through the matching gap between the middle electric connector and the right electric connector to cause the short circuit of the connector or the exit of personnel, and simultaneously, the through holes arranged on the rubber ring close to the inner wall of the middle electric connector can prevent the difficult plugging and unplugging of the composite electric connector due to the incapability of gas discharge or gas entrance in the plugging and unplugging process, simultaneously to the left side electric connector, the outside surface of middle electric connector and right side connector and the locating pin on the middle electric connector after carrying out rust-resistant treatment can prevent to appear when the connector uses under humid environment for a long time because of the complex connector that the connecting position rusty condition caused inserts the practicality that closes the difficulty and reduce whole scalable connector, the life that can also increase the electric connector simultaneously reduces use cost and is provided with the bleeder vent that runs through to the outside on right side electric connector right side in the deepest of the guide pin hole on the electric connector of right side, can be natural when guide pin and guide pin hole cooperation carry out the air flow and prevent to cause the complex electric connector to connect unstably because of the too high cooperation department of causing of gas tightness is flicked open by the atmospheric pressure.
Compared with the prior art, the invention has the beneficial effects that:
1. the electric connector structure has linear telescopic capacity, the multi-core power supply link is connected or disconnected while the multi-core power supply link is realized by integral blind plugging, thick and heavy cables are prevented from being dragged in the connector butt joint process, the labor intensity of the connector installation butt joint process is greatly reduced, and the electric connector structure has important significance for improving the efficiency and the automation level of the long-stroke plugging interconnection process of the electric connector.
2. The combined design is adopted, the two electric connectors with the linear relative motion relation are combined and packaged into the composite electric connector capable of linearly stretching, the overall model is simple, the integration level is high, the installation and the operation are convenient, and the installation and plug-in requirements of narrow operation space are met.
3. The telescopic connector opposite-inserting structure avoids the problem of cable sheath damage possibly caused by cable dragging, and improves the operation safety of the electric connector in the opposite-inserting and connecting process; the electric connector plugging interfaces are provided with radial seals, so that the reliability and safety protection level of the electric connector plugging interconnection are ensured.
4. Carry out rust-resistant processing and set up the electric connector surface rust that the compound electric connector's meeting cooperation position mutually set up the sealing rubber circle and can prevent that the humidity condition from causing and use inconvenience even the potential safety hazard appears and can prevent simultaneously that the rainwater from getting into the inside of some connectors from the joint gap and causing the short circuit condition.
Drawings
Fig. 1 is a schematic view of an assembled and separated state of a retractable electrical connector for blind mating.
Fig. 2 is a schematic view of an assembled plugging state of the retractable electrical connector for blind plugging.
Fig. 3 is a schematic view of an intermediate electrical connector for use in a blind mate retractable electrical connector.
Fig. 4 is a schematic view of a left electrical connector of a retractable electrical connector for blind mating.
Fig. 5 is a schematic view of a right side electrical connector of a retractable electrical connector for blind mating.
Fig. 6 is a cross-sectional view of a composite electrical connector for use in a blind mate retractable electrical connector.
Fig. 7 is a block diagram of the connection position of a composite electrical connector for use in a blind mate retractable electrical connector.
The figures in the drawings represent: the left-side electric connector comprises a left-side electric connector 1, a floating sleeve 1-1, a positioning pin hole 1-2, a left contact pin 1-3, a left cable tail clamp 1-4, a left connector barrel 1-5, a left radial sealing ring 1-6, a middle electric connector 2, a guide pin 2-1, a guide flat key 2-2, a positioning pin 2-3, a radial sealing ring 2-4, a contact pin 2-5, a contact pin hole 2-6, a rear end barrel 2-7, a front end barrel 2-8, a right-side electric connector 3, a guide pin hole 3-1, a guide flat key side connector 3-2, a right-side connector jack 3-3, a threaded barrel 3-4, an outer barrel 3-5, a cable tail clamp 3-6, a flange 4, a left-side fixing mounting plate 5, a telescopic plate 6, a right-side fixing mounting plate 7 and a composite electric connector 8.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
the invention is composed of three electric connectors which are coaxial and connected in series from left to right, when in use, the left electric connector 2 is used as a socket and is connected with a left fixed mounting plate 5 through a flange, and the middle electric connector 2 and the right electric connector 3 are combined and packaged to form a compound electric connector 8 which can be linearly stretched. Wherein, the right side electric connector 3 is fixedly installed, the middle electric connector 2 is fixed with the expansion plate 6 through a flange, can slide along the axis relatively, and is plugged in or disconnected with the left side electric connector 1 under the action of external force, so that the rapid on-off of the whole power supply link is realized. The expansion plate 6 is connected with an external hydraulic power supply device and the like, so that full-automatic plugging interconnection of the electric connectors can be realized.
With reference to fig. 1 and 2, in an embodiment of the present invention, a telescopic electrical connector for blind mating includes a left electrical connector 1, a middle electrical connector 2, a right electrical connector 3, a flange 4, a left fixed mounting plate 5, a telescopic plate 6, a right fixed mounting plate 7, and a composite electrical connector 8, where the left electrical connector 1 is used as a socket and is fastened and mounted on the left fixed mounting plate 5 by a bolt connection; the middle electric connector 2 and the right electric connector 3 are packaged to form a compound electric connector 8 which can be linearly stretched; wherein, right side electric connector 3 is fixed mounting on right side fixed mounting board 7 through two flange nuts 4, and middle electric connector 5 passes through the flange to be connected with expansion plate 6, can follow the axis and relatively slide, inserts with left side electric connector 1 automation under the effect of external power and closes or separate.
The middle electric connector 2 and the right electric connector 3 are always in an insertion connection state to form a linearly telescopic composite electric connector 8; in the initial state, the middle electric connector 2 and the left electric connector 1 are in a separated state; when the expansion plate 6 moves to the left side under the action of external force, the composite electric connector 8 is stretched and extended, the middle electric connector 2 is in contact with and inserted into the left electric connector 1, and the whole power supply link is conducted.
With reference to fig. 3 and 4, the middle electric connector 2 is divided into a front end and a rear end by a mounting flange, the front end comprises a front end cylinder 2-8, a positioning pin 2-3 and a pin hole 2-6, the front end can be butted with or separated from the left electric connector 1 under the action of external force, and the rear end is mainly characterized by a rear end cylinder 2-7, a guide pin 2-1, a guide flat key 2-2, a radial sealing ring 2-4 and a pin 2-5, the rear end and the right electric connector 3 are always in an inserting connection state and can generate telescopic relative motion along an axis; the left electric connector 1 is mainly characterized by comprising a floating sleeve 1-1, a positioning pin hole 1-2, a left contact pin 1-3, a left cable tail clamp 1-4, a left connector cylinder 1-5 and a left radial sealing ring 1-6; meanwhile, two positioning pin holes 1-2 are symmetrically distributed on the flange of the left electric connector 1 at 180 degrees, and two positioning pins 2-3 are correspondingly arranged at the front end of the mounting flange of the middle connector 2; through the matching of the two pairs of positioning pins and the holes, the active correction of the radial error and the circumferential error of the butt joint of the composite electric connector 8 and the left socket is realized; meanwhile, a floating sleeve 1-1 is arranged on a mounting flange of the left electric connector 1, so that the left electric connector 1 has certain translational and rotational floating capacity in the plane of the fixed mounting plate 5, and the insertion error when the middle electric connector 2 is butted with the left electric connector 1 is counteracted; the left radial sealing ring 1-6 is also arranged in the cylinder of the left electric connector 1, and when the composite electric connector 8 and the electric connector with the left side as a socket are plugged, the sealing ring is sealed with the front end cylinder 2-8 of the middle connector 2, so that the reliability and the safety of power supply link communication are guaranteed.
With reference to fig. 3 and 5, the radial sealing ring 2-4 is installed inside the rear cylinder of the middle electrical connector 2 and is always kept in a compressed and sealed state with the outer cylinder 3-5 on the right electrical connector 3, so that the good protection characteristic of the composite electrical connector 8 is ensured.
With reference to fig. 1 and 5, the middle electrical connector 2 and the right electrical connector 3 are packaged to form a linearly retractable composite electrical connector 8, and the two are always in an insertion connection state; in order to facilitate the installation of the composite electric connector 8, the right electric connector 3 is designed into a smooth and flat cylindrical structure; in the process of assembling the connector, the composite electric connector 8 sequentially penetrates through the telescopic plate 6 and the right fixed mounting plate 7 from left to right, the tail end of the right electric connector 3 is provided with threaded cylinders 3-6, and finally the right electric connector 3 is tightly mounted on the right fixed mounting plate 7 through a flange nut 4; the whole installation process of the composite electric connector 8 is simple and convenient, and meanwhile, the problems of damage to a guide structure and a sealing structure and the like caused by disassembling the composite electric connector 8 are solved through integral installation.
With reference to fig. 3, 5 and 6, the middle electrical connector 2 and the right electrical connector 3 are respectively provided with a guide pin 2-1 and a guide pin hole 3-1, which cooperate to realize the linear telescopic motion of the composite electrical connector 8; two guide flat keys 2-2 are distributed on the guide pin 2-1 in a 180-degree manner and are matched with the guide flat key sliding grooves 3-2 of the right-side electric connector 3, so that the circumferential rotation freedom degree of the middle electric connector 2 relative to the right-side electric connector 3 is restrained, and the accurate insertion between the middle connector contact pin 2-5 and the corresponding right-side connector jack 3-3 is ensured. Through the matching of the guide pin and the hole and the matching design of the guide flat key, the middle electric connector 2 only has the freedom degree of linear telescopic motion relative to the right electric connector 3, and the reliability of the linear telescopic motion of the composite electric connector 8 is ensured.
Example 2:
referring to fig. 7, a rubber seal ring 80 is fixedly disposed around one end of the middle electrical connector 2 at the matching position of the middle electrical connector 2 and the right electrical connector 3 in the composite electrical connector 8, the rubber seal ring is disposed without affecting the insertion between the middle electrical connector 2 and the right electrical connector 3, and a plurality of through holes are disposed around the rubber seal ring at a position close to the inner wall of the middle electrical connector through the rubber ring, when the composite electrical connector is used in a rainwater or other humid environment, the rubber seal ring can prevent rainwater from entering the composite electrical connector 8 through the matching gap between the middle electrical connector 2 and the right electrical connector 3 to cause a short circuit of the connector or an electric shock of a person, and meanwhile, due to the through hole disposed at the position close to the inner wall of the middle electrical connector on the rubber ring, the composite electrical connector 8 can be prevented from being difficult to insert or remove gas during the insertion and extraction process; after the outer surfaces of the left electric connector 1, the middle electric connector 2 and the right side connector 3 and the positioning pins 2-3 on the middle electric connector 2 are subjected to rust prevention treatment, when the connector is used in a humid environment for a long time, the phenomenon that the composite connector is difficult to insert and close due to the situation that the connecting position is rusted can be prevented, the practicability of the whole telescopic connector can be reduced, meanwhile, the service life of the electric connector can be prolonged, and the use cost can be reduced; the deepest part of the guide pin hole 3-1 on the right electric connector 3 is provided with an air hole 81 which penetrates through the right outer part of the right electric connector 1, when the guide pin 2-1 is matched with the guide pin hole 3-1, air flow can be naturally carried out, and the phenomenon that the connection of the composite electric connector is unstable due to the fact that the matching position is bounced off by air pressure because of too high air tightness is avoided, and the using function of the whole electric connector is unstable.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof.

Claims (7)

1. A telescopic electric connector for blind plugging comprises a left electric connector (1), a middle electric connector (2), a right electric connector (3), a flange (4), a left fixed mounting plate (5), a telescopic plate (6), a right fixed mounting plate (7) and a composite electric connector (8), and is characterized in that the left electric connector (1) is taken as a socket and is tightly mounted on the left fixed mounting plate (5) through bolt connection; the middle electric connector (2) and the right electric connector (3) are packaged to form a compound electric connector (8) which can be linearly stretched; the right electric connector (3) is fixedly arranged on the right fixed mounting plate (7) through two flange nuts (4), the middle electric connector (5) is connected with the expansion plate (6) through a flange and can slide relatively along the axis, and the middle electric connector and the left electric connector (1) can be automatically plugged or separated under the action of external power;
the middle electric connector (2) and the right electric connector (3) are always in an insertion connection state to jointly form a linearly telescopic composite electric connector (8); in the initial state, the middle electric connector (2) and the left electric connector (1) are in a separated state; when the expansion plate (6) moves to the left side under the action of external force, the composite electric connector (8) is stretched and extended, the middle electric connector (2) is in contact with and inserted into the left electric connector (1), and the whole power supply link is conducted;
the middle electric connector (2) is divided into a front end and a rear end by a mounting flange; the front end comprises a front end cylinder (2-8), a positioning pin (2-3) and a pin hole (2-6), and is butted with or separated from the left electric connector (1) under the action of external force; the rear end comprises a rear end cylinder (2-7), a guide pin (2-1), a guide flat key (2-2), a radial sealing ring (2-4) and a contact pin (2-5), and the rear end and the right electric connector (3) are always kept in an inserting connection state and can generate telescopic relative motion along the axis.
2. A retractable electrical connector for blind mating according to claim 1, characterized in that the main features of the left electrical connector (1) include: the cable connector comprises a floating sleeve (1-1), a positioning pin hole (1-2), a left contact pin (1-3), a left cable tail clamp (1-4), a left connector cylinder (1-5) and a left radial sealing ring (1-6); the right electric connector (3) comprises a guide pin hole (3-1), a guide flat key sliding groove (3-2), a right electric connector jack (3-3), a threaded cylinder (3-4), a right connector cylinder body (3-5) and a cable tail clamp (3-6).
3. The retractable electrical connector for blind mating as claimed in claim 1 or 2, wherein the composite electrical connector (8) is composed of a middle electrical connector (2) and a right electrical connector (3) through a guide pin (2-1) and a guide pin hole (3-1) and realizes linear retractable movement of the composite electrical connector (8), and two guide flat keys (2-2) are distributed on the guide pin (2-1) at 180 ° and matched with the guide flat key sliding grooves (3-2) of the right electrical connector (3), so as to restrict axial rotation freedom of the middle electrical connector (2) relative to the right electrical connector (3) and ensure accurate mating between the contact pins (2-5) on the middle electrical connector (2) and the corresponding right electrical connector jacks (3-3) on the right electrical connector (3); through the design of guide pin matching and guide flat key matching, the middle electric connector (2) only has the degree of freedom of linear telescopic motion relative to the right electric connector (3), and the reliability of the linear telescopic motion of the composite electric connector (8) is ensured.
4. The retractable electrical connector for blind mating as claimed in claim 1 or 2, wherein the connection position of the middle electrical connector (2) and the left electrical connector (1) is provided with two positioning pin holes (1-2) symmetrically distributed at 180 ° on the flange of the left electrical connector (1); correspondingly, two positioning pins (2-3) are arranged at the front end of the mounting flange of the middle connector (2) and are matched with the two positioning pin holes (1-2) to realize the active correction of radial errors and circumferential errors when the composite electric connector (8) is butted with the left electric connector (1) serving as a socket; the floating sleeve (1-1) arranged on the mounting flange of the left electric connector (1) enables the left electric connector (1) to have certain translational and rotational floating capacity in the plane of the fixed mounting plate (5), and insertion error when the middle electric connector (2) is in butt joint with the left electric connector (1) is offset.
5. The retractable electrical connector for blind mating as claimed in claim 1 or 2, wherein the connection position of the middle electrical connector (2) and the right electrical connector (3) is that a radial sealing ring (2-4) is arranged inside the rear cylinder of the middle electrical connector (2) and is always kept in a compression sealing state with the outer cylinder (3-5) on the right electrical connector (3); meanwhile, the middle electric connector (2) and the right electric connector (3) are packaged to form a composite electric connector (8) capable of stretching linearly, the middle electric connector and the right electric connector are always kept in an inserting connection state, in order to facilitate the installation of the composite electric connector (8), the right electric connector (3) is designed into a smooth and flat cylindrical barrel structure, and meanwhile, in the connector assembling process, the composite electric connector (8) sequentially penetrates through a stretching plate (6) and a right fixed mounting plate (7) from left to right; the tail end of the right electric connector (3) is provided with a thread cylinder (3-6) and the whole right electric connector (3) is finally fastened and installed on a right fixed installation plate (7) through a flange nut (4).
6. The retractable electrical connector for blind mating according to claim 1 or 2, wherein a left radial sealing ring (1-6) is also arranged inside the cylinder of the left electrical connector (1), and when the composite electrical connector (8) is mated with the left electrical connector, the left radial sealing ring (1-6) is sealed with the front end cylinder (2-8) of the middle connector (2), so as to ensure the reliability and safety of power link communication.
7. The retractable electrical connector for blind mating according to claim 1, wherein the mating positions of the middle electrical connector (2) and the right electrical connector (3) in the composite electrical connector (8) are fixedly provided with a rubber sealing ring (80) around the inner wall of one end of the middle electrical connector (2), and the arrangement of the rubber sealing ring (80) does not affect the insertion between the middle electrical connector (2) and the right electrical connector (3), and a plurality of through holes are formed around the rubber sealing ring (80) at the position close to the inner wall of the middle electrical connector (2) through the rubber sealing ring, and simultaneously, the outer surfaces of the left electrical connector (1), the middle electrical connector (2) and the right electrical connector (3) and the positioning pins (2-3) on the middle electrical connector are subjected to rust prevention treatment; the deepest part of the guide pin hole (3-1) on the right electric connector (3) is provided with an air hole (81) which penetrates through the right outer part of the right electric connector (1).
CN202110543494.8A 2021-05-19 2021-05-19 Telescopic electric connector for blind insertion Active CN113381236B (en)

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CN202110543494.8A CN113381236B (en) 2021-05-19 2021-05-19 Telescopic electric connector for blind insertion

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CN113381236B true CN113381236B (en) 2023-04-07

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