CN112615204A

CN112615204A - Electrical connection assembly

Info

Publication number: CN112615204A
Application number: CN202011474878.0A
Authority: CN
Inventors: 黄锦源; 周超; 殷向阳; 张新建
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: Avic Optoelectronic Interconnection Technology Nanchang Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-04-06
Anticipated expiration: 2040-12-14
Also published as: CN112615204B

Abstract

The invention relates to an electrical connection assembly, which comprises a locking fixed end and a rotating movable end, wherein a rotary distribution groove is arranged on the locking fixed end and comprises an initial section and a locking section which are communicated, the front end of the locking section is provided with a blocking part which extends towards the inside of the locking section, and an elastic sealing unit is arranged in an installation groove formed in the locking fixed end; the rotary movable end is provided with a rotary matching key in rotary matching with the rotary matching groove and a protruding part corresponding to the mounting groove, the rotary matching key is provided with a locking part in blocking matching with the blocking part along the front-back direction, and in a locking state, the elastic sealing unit provides elastic force for the protruding part to enable the locking part to be tightly abutted against the blocking part so as to realize locking and fixing of the locking fixed end and the rotary movable end along the front-back direction; set up at least one contact on the bellying, set up in the mounting groove and correspond the adaptation contact that connects and switch on under the locking state with the contact, and then realize the electric connection of locking stiff end and rotatory expansion end, use as the connector, realize transmission functions such as charging, signal.

Description

Electrical connection assembly

Technical Field

The invention belongs to the technical field of connectors, and particularly relates to an electrical connection assembly.

Background

In the connector field, thereby plug and socket need carry out headstock locking cooperation through some locking structure and realize the stable of inside contact and switch on, for example through threaded connection, buckle cooperation, bullet round pin locking structure or push-and-pull locking structure realization headstock mechanical connection back inside contact's the light and/or the signal of telecommunication switch on between the headstock, present electrical connection coupling assembling generally faces locking structure occupation space big, complex operation, dismantlement inefficiency scheduling technical problem with the help of above-mentioned locking cooperation structure.

Disclosure of Invention

The invention aims to solve the technical problems of large packaging size, heavy weight and complex operation of a locking mechanism in an electrical connection assembly in the prior art, and accordingly provides the electrical connection assembly.

The purpose of the invention and the technical problem to be solved are realized by adopting the following technical scheme. According to the invention, the electrical connection assembly comprises a locking fixed end and a rotating movable end which are rotatably buckled to realize mutual locking,

the locking and fixing end is provided with at least one rotary distribution groove, the rotary distribution groove comprises an initial section and a locking section which are communicated, the front end of the locking section is provided with a blocking part extending towards the inside of the locking section, and an elastic sealing unit is arranged in a mounting groove formed in the locking and fixing end;

the rotary movable end is provided with a rotary matching key in rotary matching with the rotary matching groove and a protruding part corresponding to the mounting groove, the rotary matching key is provided with a locking part in blocking matching with the blocking part along the front and back directions when the rotary matching key rotates to the locking position, and in the locking state, the elastic sealing unit provides elastic force for the protruding part to enable the locking part to be abutted against the blocking part so as to realize locking and fixing of the locking fixed end and the rotary movable end along the front and back directions;

set up at least one contact on the bellying, set up in the mounting groove and correspond the adaptation contact that connects and switch on under the locking state with the contact, and then realize the electric connection of locking stiff end and rotatory expansion end.

The object of the invention is further achieved by the following technical measures.

In the foregoing electrical connection assembly, the contact is an elastic contact member movable in the front-back direction, and the mating contact is a corresponding socket.

Furthermore, the elastic contact element is an elastic arm type contact element assembled on the boss, or the elastic contact element is a telescopic contact element which comprises a contact pin and a spring element connected with the tail end of the contact pin, and the contact pin is assembled in a corresponding mounting hole formed in the boss in a sliding mode through the guide of the spring element.

Furthermore, a plurality of contacts are uniformly distributed on the protruding part along the circumferential direction, when the rotary matching key is positioned in the starting section, each contact and the corresponding matching contact are arranged in a staggered mode, and the contacts are not conducted with the corresponding matching contacts; when the rotary matching key is rotated into the locking section to reach the locking position, each contact is conducted with the corresponding matching contact.

The electric connection assembly is characterized in that the locking fixing end is further provided with a ball locking assembly, the ball locking assembly comprises a lock ball movably arranged in the front-back direction, and the rotary movable end is provided with a lock groove which is used for allowing the lock ball to fall into the locking state and to be matched with the lock ball in a rotation stopping mode so as to realize relative rotation stopping of the locking fixing end and the rotary movable end.

Furthermore, ball locking Assembly still includes elastic component, sleeve and stopper, the sleeve inlays and locates in the locking stiff end, and lock ball, elastic component are arranged in the sleeve, and the stopper is fixed in the sleeve bottom and is connected with the elastic component bottom, and the elastic component top pushes away the steel ball and makes the lock ball outstanding in the preceding terminal surface of locking stiff end under free state, and sleeve top inner wall has the fender edge of restricting the lock ball and deviating from completely from the sleeve.

Further, the ball locking assemblies are arranged diagonally.

Furthermore, the rotary matching groove is an arc-shaped groove, and the rotary matching key is an arc-shaped key matched with the arc-shaped groove.

Furthermore, the rear end face of the stopping part is provided with a first inclined surface, and the locking part is provided with a second inclined surface matched with the first inclined surface.

Furthermore, the end part of the locking part is provided with a guide inclined plane which is convenient for realizing the screwing of the screwing key from the starting section into the locking section.

Furthermore, the elastic sealing unit is an annular compression rubber ring, and the outer diameter of the elastic sealing unit is matched with the inner diameter of the mounting groove.

The locking fixed end and the rotating movable end are rotatably buckled to realize quick assembly and disassembly, the anti-splash connector has the anti-splash function, the double-end electrical conduction capability is further expanded under the condition of stable locking structure, and the anti-splash connector is used as a connector, so that the transmission functions of charging, signals and the like are realized.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understandable, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

Fig. 1 is an exploded view of an electrical connection assembly of the present invention.

Fig. 2 is a schematic structural view of the locking fixed end in the present invention.

Fig. 3 is a schematic structural view of the rotary movable end in the present invention.

Fig. 4 is a cross-sectional schematic view of an electrical connection assembly of the present invention.

Fig. 5 is a schematic cross-sectional view of a ball lock assembly in the electrical connection assembly of the present invention.

Detailed Description

The following detailed description is to be read in connection with the drawings and the preferred embodiments.

Fig. 1 to 5 show an embodiment of an electrical connection assembly according to the present invention, in which the electrical connection assembly includes a locking fixed end 1 and a rotating movable end 2 that are relatively rotated and fastened to achieve mutual locking, in this embodiment, the locking fixed end 1 is a socket, the rotating movable end 2 is a plug that is adapted to be plugged into the socket, and a plugging end of the plug/socket is a front end; at least one rotating and matching groove 11 is formed in the locking and fixing end 1, the rotating and matching grooves 11 are arc-shaped grooves, preferably, two rotating and matching grooves are formed in the two sides of the front end face of the locking and fixing end and are symmetrically arranged on the two sides of the front end face of the locking and fixing end, and therefore stable locking and matching relations are achieved; the screwing groove 11 comprises an initial section 111 and a locking section 112 which are communicated, the inner wall of the front end of the locking section 112 is provided with a stopping part 113 which extends towards the inner direction of the locking section (vertical to the front-back direction), the stopping part and the locking fixed end are integrally formed, and a gap is formed between the stopping part and the inner wall of the front end of the locking section at the opposite side; locking stiff end 1 middle part has been seted up mounting groove 12, and the mounting groove is the circular recess, and the inslot bonding is fixed with elastic sealing unit, and the preferred annular compression rubber ring 3 of elastic sealing unit, its external diameter and mounting groove internal diameter highly match. In other embodiments, more than two screwing grooves can be arranged on the locking fixed end along the circumferential direction; the elastic sealing unit can also be a closed ring-shaped elastic part with other shapes, and can play a role in providing elasticity and sealing, and certainly, under certain application environments without water resistance, the elastic sealing unit only provides elastic force and does not have a sealing function.

In this embodiment, the front end of the movable rotating end 2 is provided with a rotation-fit key 21 which is rotatably fitted with the rotation-fit groove 11 and locks the movable rotating end 2 in the front-rear direction, and a protruding portion 22 corresponding to the mounting groove, the rotation-fit key 21 is provided with a locking portion 211 which is in stop-fit with the stopping portion 113 in the front-rear direction when the rotation-fit key is rotated to the locking position (i.e. when the rotation-fit key is rotated to the inside of the locking section), in the locking state, the front end surface of the protruding portion 22 presses the annular compression rubber ring 3, and the annular compression rubber ring 3 compresses and provides a reverse elastic force to the protruding portion 22, so that the locking portion 211 presses against the rear end surface of the stopping portion 113 to lock and fix the fixed rotating end 1 and the movable rotating end 2 in.

As preferred, still further set up ball locking Assembly 4 on the locking stiff end 1, ball locking Assembly 4 includes the lock ball 41 that sets up along the fore-and-aft direction activity, be equipped with on the rotatory expansion end and supply lock ball 41 to fall into under locking state and with the lock ball along perpendicular to fore-and-aft direction go on the locking cooperation in order to realize locking stiff end and the relative locked groove 23 of rotatory expansion end to further prevent taking place the mistake unlocking that radial relative rotation leads to after the locking cooperation of rotatory cooperation groove and rotatory cooperation key, consequently ball locking Assembly plays secondary locking effect, use under the suitable high-frequency vibration environment. Specifically, the ball locking assembly 4 further comprises an elastic member 42, a sleeve 43 and a limiting block 44, wherein the sleeve is embedded in the locking fixed end 1 in a manner including but not limited to thread fit, bonding, snap fit or fixed by press riveting; the locking ball and the elastic element are arranged in the sleeve, the limiting block 44 is fixed at the bottom end of the sleeve through threads or buckles and connected with the bottom end of the elastic element to play a role in supporting and limiting the elastic element, the top end of the elastic element 42 pushes the locking ball and enables the locking ball to protrude out of the front end face of the locking fixed end in a free state so as to enter the locking groove to realize a secondary locking function, the inner wall of the top end of the sleeve 43 is provided with a blocking edge 431 for limiting the locking ball to completely separate from the sleeve, and the contact surface of the blocking edge and the locking ball is designed to be an arc surface. The lock ball is preferably a steel ball, and can also be a ball-shaped structure made of non-metal materials; the elastic element is preferably a cylindrical spring, and can also be of other elastic structures capable of axially extending and contracting.

In the embodiment, the locking fixed end 1 and the rotating movable end 2 are made of composite materials, preferably PC/ABS; the annular compression rubber ring 3 is made of silicon rubber; the ball locking assembly 4 is made of metal, and if the locking ball, the spring, the sleeve and the limiting block are made of stainless steel, the ball locking assembly is durable and wear-resistant.

Referring to fig. 2, two ball locking assemblies 4 are arranged diagonally to provide a stable secondary locking function, but in other embodiments, one or three or more ball locking assemblies may be provided, and the invention is not limited thereto.

In this embodiment, at least one contact 5 is arranged on the protruding portion, and an adaptive contact 6 is arranged in the mounting groove and correspondingly connected and conducted with the contact in a locking state, so that the electric connection between the locking fixed end and the rotating movable end is realized on the basis of locking fixation. Preferably, the contact 5 is a resilient contact that is movable in a back and forth direction, and the mating contact 6 is a corresponding socket.

Furthermore, a plurality of contacts 5 are uniformly distributed on the protruding part along the circumferential direction, when the rotary matching key is positioned in the starting section, each contact and the corresponding matching contact are arranged in a staggered manner in the circumferential direction, and the contact and the corresponding matching contact are not in contact conduction at the moment; when the rotary matching key is rotated into the locking section and reaches the locking position, each contact is conducted with the corresponding matching contact. As figure 3, set up the contact of four equipartitions in the bellying periphery, adjacent contact contained angle is 90, and the centre sets up a contact, and the distribution form and the contact one-to-one of jack, the structural design of rotatory movable end are: the rotation angle of the rotating movable end required by the whole stroke of the rotating matching key from the starting section to the locking section and reaching the locking position can be 30-75 degrees, and theoretically is smaller than 90 degrees; before the rotation locking, the peripheral contacts and the adaptive contacts are staggered, and the contacts are correspondingly connected and conducted with the adaptive contacts one by one after the rotation, so that the mistaken conduction of each contact in the operation process can be avoided, for example, when a charging contact and a signal contact are mixed, the charging contact with a larger load is prevented from mistakenly entering a signal jack.

Preferably, the elastic contact is a spring arm type contact assembled on the boss, the spring arm is elastically pressed against the end face of the mounting groove before the rotary movable end rotates to the locking position, the spring arm of the spring arm type contact is compressed, the spring arm can be of a Z-shaped or S-shaped conventional reed structure, and after the spring arm rotates to the locking position, the spring arm of the spring arm type contact resets and enters the jack to be in contact with the jack for conduction.

Preferably, the elastic contact element is a telescopic contact element capable of stretching in the front-back direction, the telescopic contact element comprises a contact pin and a spring element connected with the tail end of the contact pin, the spring element can be a spring, and the contact pin is slidably assembled in a corresponding mounting hole formed in the protruding portion through the guide of the spring. When the plug is in butt joint with the socket, the contact pin pushes the front end face of the mounting groove in advance, the spring is compressed, the contact pin retreats, after the plug is rotated to the locking position, the contact pin is aligned to the jack, and the contact pin is in plug-in fit with the jack under the action of the reset force of the spring to realize contact conduction.

The signal of the contact conducting with the adapting contact can be an electric signal, an optical signal or an optical-electric signal.

In other embodiments, the contact may be a contact with other structures, as long as the fixed end and the free end of the electrical connection assembly can be in contact with the mating contact after being locked by rotation.

Referring to fig. 4, the rear end surface of the stopper 113 is provided with a first inclined surface 1131, and the locking portion 211 is provided with a second inclined surface 2111 matching with the first inclined surface; with reference to fig. 3, the end of the locking portion is provided with a guiding slope 2112 for facilitating the screwing of the screwing key from the initial section into the locking section.

When the headstock is connected, the locking fixed end serves as a positioning reference, an installation groove position is provided for the rotating movable end and plays a limiting role, the protruding part is aligned to the installation groove, the rotary matching key is aligned to the rotary matching groove, and the outer diameter of the protruding part is matched with the inner diameter of the installation groove so as to prevent the headstock from moving radially; the movable end is extruded and rotated towards the direction of the fixed locking end, so that the first inclined surface on the blocking portion is attached to the second inclined surface of the locking portion, the protruding portion extrudes the annular compression rubber ring through attachment between the inclined surfaces, and the attachment of the two inclined surfaces is tighter due to the reverse force of the annular compression rubber ring, so that locking and looseness prevention are realized. After the locking head is rotated to the locking position, the locking ball pressed by the front end face of the rotating movable end is ejected out and enters the locking groove to realize further looseness prevention, and radial rotation prevention between the head bases is completed.

In this embodiment, the locking fixed end may be specifically a socket housing, and the rotating movable end is a plug housing, which is illustrated as a plate-shaped structure, and it may also be in other shapes and structures, such as a circular housing, a square cylindrical housing, and the like, and it may also be a corresponding outer shell or inner shell component of various connectors, such as an optical fiber connector, a charging and discharging connector, a fluid connector, and the like.

In other embodiments, the structural application form of the present invention is not limited to the realization of electrical conduction of the connector, the protruding portion may also be a battery or a device needing sealing/fixing, and the mounting groove may be used as a space for accommodating a corresponding device, thereby expanding the application range of the present invention.

The above description is only a preferred embodiment of the present invention, and any person skilled in the art can make any simple modification, equivalent change and modification to the above embodiments according to the technical essence of the present invention without departing from the scope of the present invention, and still fall within the scope of the present invention.

Claims

1. The electric connection component is characterized by comprising a locking fixed end and a rotating movable end which are rotationally buckled to realize mutual locking,

2. The electrical connection assembly of claim 1, wherein: the contact is an elastic contact piece moving along the front-back direction, and the adaptive contact is a corresponding jack.

3. The electrical connection assembly of claim 2, wherein: the elastic contact is a spring arm type contact fitted on the boss portion, or,

the elastic contact element is a telescopic contact element which comprises a contact pin and a spring element connected with the tail end of the contact pin, and the contact pin is assembled in a corresponding mounting hole formed in the protruding part in a sliding mode through the guide of the spring element.

4. The electrical connection assembly of claim 1, wherein: a plurality of contacts are uniformly distributed on the convex part along the circumferential direction,

when the rotary matching key is positioned in the initial section, each contact and the corresponding matching contact which is contacted with the contact are arranged in a staggered way, and the contact is not conducted with the corresponding matching contact;

when the rotary matching key is rotated into the locking section to reach the locking position, each contact is conducted with the corresponding matching contact.

5. The electrical connection assembly of claim 1, wherein: the locking fixed end is provided with a ball locking assembly, the ball locking assembly comprises a locking ball movably arranged in the front-back direction, and the rotary movable end is provided with a locking groove which is used for allowing the locking ball to fall into the locking state and matched with the locking ball in the front-back direction perpendicular to the locking state to realize relative rotation stop of the locking fixed end and the rotary movable end.

6. The electrical connection assembly of claim 1, wherein: the ball locking component also comprises an elastic piece, a sleeve and a limiting block,

the sleeve is embedded in the locking fixed end, the locking ball and the elastic piece are arranged in the sleeve, the limiting block is fixed at the bottom end of the sleeve and connected with the bottom end of the elastic piece, the top end of the elastic piece pushes the steel ball and enables the locking ball to protrude out of the front end face of the locking fixed end in a free state, and the inner wall of the top end of the sleeve is provided with a blocking edge for limiting the locking ball to be completely separated from the sleeve.

7. The electrical connection assembly of claim 1, wherein: the rotary matching groove is an arc-shaped groove, and the rotary matching key is an arc-shaped key matched with the arc-shaped groove.

8. The electrical connection assembly of claim 1, wherein: the rear end face of the stop part is provided with a first inclined plane, and the locking part is provided with a second inclined plane matched with the first inclined plane.

9. The electrical connection assembly of claim 1, wherein: the end part of the locking part is provided with a guide inclined plane which is convenient for realizing the screwing of the screwing key from the starting section into the locking section.

10. An electrical connection assembly according to any one of claims 1 to 9, wherein: the elastic sealing unit is an annular compression rubber ring, and the outer diameter of the elastic sealing unit is matched with the inner diameter of the mounting groove.