CN104022400A

CN104022400A - Electric connector

Info

Publication number: CN104022400A
Application number: CN201410246866.0A
Authority: CN
Inventors: 余郑军; 纪冬青; 王志信
Original assignee: HU LANE ASSOCIATE Inc
Current assignee: Dongguan hulane Electronic Technology Co., Ltd.
Priority date: 2014-06-05
Filing date: 2014-06-05
Publication date: 2014-09-03
Anticipated expiration: 2034-06-05
Also published as: CN104022400B

Abstract

The invention discloses an electric connector which comprises a body, an end cover and at least one terminal. When the end cover is aligned with the body and placed into the body in a sleeved mode, a first clasp of the end cover is buckled into a first catching groove of the body so that tenons of inner clamping hooks in all terminal grooves in the body and stop tenons of extension sheets of the end cover can be in the first locating state in an abutting mode; when all the terminals are inserted in the terminal grooves of the body, the terminals will touch the bottom surfaces of the hook portions of the inner clamping hooks, so that the inner clamping hooks are made to conduct radial deformation till the hook portions are buckled into clamping grooves of the terminals, and the tenons of the inner clamping hooks and containing grooves of the extension sheets are in an aligned state without insertion; lastly, a second clasp of the end cover is buckled into a second catching groove of the body, and the tenons are inserted into the containing grooves, so that the end cover is in the second locating state relative to the body.

Description

Electric connector

Technical field

The present invention, about a kind of electric connector, refers in particular to a kind of electric connector with terminal position guarantee (Terminal Position Assurance is called for short TPA) function.

Background technology

By electric connector, in electric equipment products, have finding, its main application is the transmission of power supply or signal more, and therefore, electric connector has been widely used for the connection of information products, and is indispensable member.

In practical application, the utilization of electric connector is not only aforementioned electric equipment products, and it is also widely used in the Circuits System of vapour, locomotive, the connection of usining as circuit.For guaranteeing that electric connector inner contact terminal can firmly locate and lock, therefore, known electric connector is comprised of a body and a lid.This body has a plurality of terminal grooves, and each terminal is intercalated in terminal groove.For a plurality of latches of a complementary electrical connector can stably be inserted in the corresponding terminal arranging of this electric connector, these terminals must be in location and lock-out state.Therefore, be sheathed on the lid of body, that is known terminal position ensuring equipment is indispensable necessary member with respect to electric connector speech in fact.

Aforementioned terminal position ensuring equipment is the secondary positioner as terminal, and its major function is: the confining force that 1, increases terminal; And 2, confirm whether terminal is assembled and put in place.Therefore, known terminal position ensuring equipment is typically provided with two-part lock function, wherein the first location kenel is the state of manufactory's assembling shipment, object is the use that facilitates terminal assembly plant, in case leak-stopping fills or fills less this terminal position ensuring equipment, the second location kenel is functional section, is mainly by terminal position.

Be that the common disappearance of aforementioned terminal position ensuring equipment is, when first, second location kenel is changed, convenience in order to ensure assembling terminal, the general practice is when carrying out terminal grafting with location, to form less insertion force, this measure easily causes this terminal position ensuring equipment in transportation, because of collision each other, after making this terminal position ensuring equipment stressed, easily in this body, by the first location kenel, snap in the second location kenel, make terminal assembly plant cannot carry out the assembling of terminal, and to be improved.

Summary of the invention

The object of the invention and the effect gaining are to provide a kind of electric connector, when after its body and end cap socket, kenel is located in formation first, the interior grab of this body and the Extendible flake of this end cap form interference fit, to guarantee, under inserted terminals state not, cannot to form the second location kenel; Moreover, this interior grab becomes interference fit with terminal design, and this interference fit will be impelled this interior grab distortion, make this interior grab and this end cap form matched in clearance by interference fit, be beneficial to terminal group and be filled to after location and lock-out state, this end cap begins to form the second location kenel with this body.

For reaching aforesaid object, the technical solution used in the present invention is to provide a kind of electric connector, comprise: a body, it axially offers at least one terminal groove, and in each terminal groove, axially stretch out grab in a step shape can resilient radial swinging, wherein this interior grab upper and lower axially stretches out forward a tenon and a hook portion, and this at least one terminal groove leading portion in this body the place ahead is provided with a junction surface, and this both sides, junction surface outer wall is respectively equipped with first, second catching groove; One end cap, its corresponding terminal groove forms one and wears groove, and inner corresponding each terminal groove of this end cap is axially arranged with an Extendible flake backward, wherein this Extendible flake free end radially adjoining is provided with a gear tenon and a storage tank, and this end cap both sides inwall is to should first, second catching groove position being respectively equipped with a buckling parts that comprises first, second clasp; And at least one terminal, it is inserted in each terminal groove, and each terminal surfaces is offered a draw-in groove, and connects a wire; The junction surface cover of aiming at this body when the buckling parts of this end cap is fashionable, and this first clasp is buckled in the first catching groove, and the tenon in each terminal groove can form first of butt shape with this gear tenon and locates kenel; When each terminal is inserted by the terminal groove of this body, can touch this hook portion bottom surface, and impel this interior grab radial deformation that makes progress, until this hook portion is buckled in this draw-in groove, and make this tenon and this storage tank form the not contraposition kenel of grafting; Finally the second clasp of this end cap is buckled in the second catching groove of this body, and make this tenon insert in this storage tank, make this end cap form the second location kenel with respect to this body.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the present invention is done further and illustrated, above-mentioned and/or otherwise advantage of the present invention will become apparent.

Fig. 1 and Fig. 2 are the three-dimensional exploded view of electric connector two different visual angles of the present invention;

Fig. 3 and Fig. 4 are stereogram and the transverse cross-sectional view in the first location kenel after electric connector group of the present invention is stood;

Fig. 5 and Fig. 6 are stereogram and horizontal 3 profiles in the second location kenel after electric connector group of the present invention is stood;

Fig. 7 to Fig. 9 is in the first location kenel, inserted terminals and the longitudinal sectional drawing in the second location kenel after electric connector group of the present invention is stood.

Embodiment

In the present invention, the component names that each Reference numeral is corresponding is as follows:

Body 1, terminal groove 11, interior grab 12, tenon 121, hook portion 122, inclined-plane 123, junction surface 13, first, second catching groove 131,132, interface 14, sealing ring 15, end cap 2, wear groove 21, Extendible flake 22, gear tenon 221, storage tank 222, buckling parts 23, first, second clasp 231,232, terminal 3, draw-in groove 31, wire 32.

As shown in Figures 1 to 9, substantially, electric connector of the present invention comprises body 1, one end cap 2, and at least one terminal 3.

This body 1 is by insulating material, for example plastic ejection moulding.This body 1 is axially offered at least one terminal groove 11, and as shown in Figure 2, these terminal groove 11 quantity are two, and axially parallel setting.Refer to Fig. 7, each terminal groove 11 is interior axially stretches out grab 12 in a step shape can resilient radial swinging, and wherein these interior grab 12 upper and lowers axially stretch out forward a tenon 121 and a hook portion 122, and these hook portion 122 lower edges form an inclined-plane 123.

As shown in Fig. 1, Fig. 3 and Fig. 4, two ends pilot trench 11 leading portions in this body 1 the place ahead are provided with a junction surface 13, to for after these end cap 2 tippings, make 1 of this end cap 2 and this body form an interface 14 that can dock for complementary electrical connector.Wherein, these junction surface 13 left and right sides outer walls are respectively equipped with first, second catching groove 131,132, to forms respectively the first location kenel while dispatching from the factory and these terminals 3 for this end cap 2 with respect to the junction surface 13 of this body 1, are assembled to second behind location and locate kenel.

Further, shown in Fig. 1, Fig. 2, Fig. 4 and Fig. 6, this body 1 further comprises a sealing ring 15, and sealing circle 15 is 13 rears, junction surface that are sheathed on these interface 14 inside.After the interface 14 of this body 1 is pegged graft for this complementary electrical connector, can make this two electric connector form sealing effectiveness.

End cap 2 is also by insulating material, for example plastic ejection moulding.This end cap 2 has terminal position security function, its corresponding end pilot trench 11 forms one and wears groove 21, to be sheathed on after the interface 14 of this body 1 for tables of known complementary electric connector, at least one latch (prior art of this complementary electrical connector, in figure, do not mark) by this, wear groove 21, and be plugged in the corresponding terminal 3 arranging of this electric connector, to form electrical connection.Wherein inner corresponding each terminal groove 11 of this end cap 2 is axially arranged with an Extendible flake 22 backward, and each Extendible flake 22 free end radially adjoinings are provided with a gear tenon 221 and a storage tank 222 (being shown in Fig. 7).In addition, these end cap 2 left and right sides inwalls are respectively equipped with first, second clasp 231,232 (being shown in Fig. 4) of a buckling parts 23 to first, second catching groove 131,132 positions that should junction surface 13, wherein this first clasp 231 is based in this end cap 2 right side rear inner wall, and this second clasp 232 is based in this end cap 2 inner left wall front ends, both have range difference to make this first, second clasp 231,232.

Terminal 3 is to be inserted in each terminal groove 11, and a draw-in groove 31 for these hook portion 122 snappings is offered on each terminal 3 surfaces, and this terminal 3 further connects a wire 32 being passed by each terminal groove 13 rears.

Refer to Fig. 1 to Fig. 4 and Fig. 7, with regard to manufactory, say, it produces respectively after body 1 and end cap 2, in the time of need to assembling, first sealing circle 15 is sheathed on to 13 rears, junction surface of these interface 14 inside, then be inserted at the junction surface 13 of the buckling parts of this end cap 2 23 being aimed to this body 1, this first clasp 231 is buckled in the first catching groove 131 (being shown in Fig. 4), make that this end cap 2 is unlikely axially to be deviate from by this body 1, and the gear tenon 221 of this Extendible flake 22 in each terminal groove 11 forms interference fit with the tenon of this interior grab 12 121, and present first of butt shape, locate kenel, to guarantee under inserted terminals 3 states not, after cannot forming, chat the second location kenel.

Refer to Fig. 8, with regard to terminal assembly plant, say, each terminal 3 is inserted by the terminal groove 11 at this body 1 rear, because this interior grab 12 is designed to interference fit with terminal 3, therefore, each terminal 3 penetrates the inclined-plane 123 that terminal groove 11 can touch these hook portion 122 bottom surfaces when interior, and impel upwards radial deformation of this interior grab 122, make this interior grab 12 by interference fit, form matched in clearance with Extendible flake 22, that is this tenon 121 forms the contraposition kenel of not pegging graft with this storage tank 222, the hook portion 122 of this interior grab 12 is buckled in the draw-in groove 31 of this terminal 3, terminal 3 is assembled in terminal groove 11, to form location and lock-out state.

Refer to Fig. 5, Fig. 6 and Fig. 9, finally this end cap 2 is continued to be inserted in to the junction surface 13 of this body 1, this second clasp 232 is buckled in the second catching groove 132 (being shown in Fig. 6), and this storage tank 222 is towards these tenon 121 displacements, until this tenon 121 inserts in this storage tank 222, and what these terminal 3 openings were adjacent to this end cap 12 wears groove 21, makes this end cap 2 form the second location kenel with respect to this body 1.

So, after this electric connector assembling completes, make the terminal 3 of this body 1 inside form location and lock-out state.So complementary electrical connector can be plugged in this interface 14 easily, and this complementary electrical connector and electric connector of the present invention are formed to electrical connection.

The invention provides a kind of thinking and method of electric connector; method and the approach of this technical scheme of specific implementation are a lot; the above is only the preferred embodiment of the present invention; should be understood that; for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.In the present embodiment not clear and definite each part all available prior art realized.

Claims

1. an electric connector, is characterized in that, comprising:

One body, body shaft is to offering at least one terminal groove, and in each terminal groove, axially stretch out a stepped interior grab can resilient radial swinging, wherein this interior grab upper and lower axially stretches out forward a tenon and a hook portion, and at least one terminal groove leading portion in described body the place ahead is provided with a junction surface, this both sides, junction surface outer wall is respectively equipped with the first catching groove and the second catching groove;

One end cap, end cap corresponding terminal groove forms one and wears groove, and inner corresponding each terminal groove of end cap is axially arranged with an Extendible flake backward, wherein this Extendible flake free end radially adjoining is provided with a gear tenon and a storage tank, and this end cap both sides inwall to should the first catching groove and the second catching groove position be respectively equipped with a buckling parts that comprises one first clasp and the second clasp;

And,

At least one terminal, terminal is inserted in each terminal groove, and each terminal surfaces is offered a draw-in groove, and connects a wire;

The junction surface cover of aiming at this body when the buckling parts of this end cap is fashionable, and this first clasp is buckled in the first catching groove, and the tenon in each terminal groove can form first of butt shape with this gear tenon and locates kenel; When each terminal is inserted by the terminal groove of this body, can touch this hook portion bottom surface, and impel this interior grab radial deformation that makes progress, until this hook portion is buckled in this draw-in groove, and make this tenon and this storage tank form the not contraposition kenel of grafting; Finally the second clasp of this end cap is buckled in the second catching groove of this body, and make this tenon insert in this storage tank, make this end cap form the second location kenel with respect to this body.

2. electric connector according to claim 1, is characterized in that, wherein this terminal groove quantity is two, and axially parallel setting.

3. electric connector according to claim 1, is characterized in that, wherein the hook portion lower edge of this interior grab forms an inclined-plane.

4. electric connector according to claim 1, it is characterized in that, wherein the first clasp of this buckling parts is based in this end cap right side rear inner wall, and this second clasp is based in this end cap inner left wall front end, and both have range difference to make this first, second clasp.

5. electric connector according to claim 1, is characterized in that, wherein this body further comprises a sealing ring, and sealing snare is located at the rear, junction surface of this interface inside.