CN207588047U - Secondary lock, connector assembly and electric connector - Google Patents

Abstract

The utility model discloses a kind of secondary lock, connector assembly and electric connectors.The secondary lock includes lock body, lock part and stop portion.The lock body can keep connection terminal.The lock part is coordinated from the laterally projecting setting of the lock body with that can lock locking eventually with connector shell longitudinal direction when being installed longitudinally forward to connector shell.The stop portion is from the laterally projecting setting of the lock body, can keep prelock one with the connector shell stopping cooperation with connector shell longitudinally rearward.The stop portion is set gradually with the lock part along the secondary lock on installation direction longitudinally forward.The secondary lock of the utility model can eventually be locked with connection terminal to be assembled in firm holding connection terminal and firm steadily prelock on connector shell.

Description

Secondary lock, connector assembly and electric connector

Technical field

The utility model is related to a kind of latch fitting, particularly it is a kind of connection terminal can be held in it is secondary Lock, connector assembly and electric connector.

Background technology

Electric connector generally uses the mode of corresponding housing support connection terminal to realize electrical connection.According to transport, group The requirement of the different applications such as dress, connection terminal are generally just assembled on housing in specific application.Correspondingly, how according to corresponding Using needs, and firm one is kept when connection terminal is conveniently and efficiently installed to housing, then become needed to be considered Problem.

Utility model content

One of the purpose of this utility model is to overcome deficiency of the prior art, and providing one kind can be with connection terminal Eventually lock with it is firm keep connection terminal and firm steadily prelock be assembled in secondary lock on connector shell, connector assembly and Electric connector.

In order to achieve the above object, the utility model is achieved through the following technical solutions：

The utility model provides a kind of secondary lock.The secondary lock includes lock body, lock part and stop portion.The lock is originally Body can keep connection terminal.The lock part is from the laterally projecting setting of the lock body, can longitudinally forward install to even Lock locking coordinates eventually with the connector shell longitudinal direction when connecing device housing.The stop portion is set from the laterally projecting of the lock body It puts, prelock one can be being kept with the connector shell with connector shell blocking cooperation longitudinally rearward.The stop portion It is set gradually on installation direction longitudinally forward along the secondary lock with the lock part.

Preferably, the secondary lock further includes support arm.The support arm is arranged on the lock body.At least partly The support arm is arranged at intervals with the lock body in a cantilever or overarm.The lock part is laterally projecting to be arranged on the support On arm.

Preferably, longitudinally projecting setting of the support arm along the lock body.The lock part is arranged on the support The free end of arm.

Preferably, the secondary lock further includes the second support arm.Second support arm is arranged on the lock body. At least partly described second support arm is arranged at intervals with the lock body in a cantilever or overarm.The stop portion is laterally projecting to be set It puts on second support arm.

Preferably, the lock part keeps the axial direction interval of connection terminal to set with the stop portion along the lock body It puts.

Preferably, the lock part includes prelock blocking surface and whole locking moves back face.The end locking moves back face and perpendicular to institute State lock body longitudinal direction lateral reference plane between form the first angle.The stop portion has prelock retaining face, the prelock Retaining face and perpendicular to the lock body longitudinal direction lateral reference plane between form the second angle.Second angle is less than institute State the first angle.

Preferably, the stop portion has prelock retaining face.The prelock retaining face is horizontally set on the lock body.

Preferably, the stop portion has prelock retaining face.The prelock retaining face is from the lock body along described secondary The installation direction of lock is tilted backwards to be extended in a barb face.

Preferably, it is provided with terminal retention portion on the lock body.When the lock part and connector shell, lock coordinates eventually When, the terminal retention portion is used to axially trap cooperation along the lock body with connection terminal.

Preferably, a pair of lock part is laterally provided projectingly in opposite directions.A pair of stop portion is laterally provided projectingly in opposite directions.

The utility model provides a kind of connector assembly.The connector assembly includes connector shell and according in aforementioned The secondary lock of any one of them.The connector shell includes shell ontology, eventually lock maintaining part and prelock blocking portion.The prelock resistance Stopper and the assembly orientation of lock eventually maintaining part along the secondary lock are successively set on the shell ontology.When the secondary lock When lock coordinates eventually with the connector shell, lock blocking is ordinatedly set the lock part eventually with the maintaining part of lock eventually；Work as institute When stating secondary lock with connector shell prelock cooperation, the stop portion and peace of the prelock blocking portion along the secondary lock The reversed of dress direction stops cooperation to keep being integrally provided.

Preferably, the maintaining part of lock eventually has boss.Laterally projecting setting of the boss along the connector shell. It is set on the boss fluted.When the secondary lock is with connector shell lock cooperation eventually, the lock part laterally prolongs It extends in the groove.

Preferably, the prelock blocking portion has prelock blocking surface.The prelock blocking surface is horizontally installed on the shell sheet On body；Or the prelock blocking surface is laterally projecting is arranged on the shell ontology, and the prelock blocking surface is along the secondary lock Assembly orientation be tilted towards before be extended in a barb face.When the secondary lock coordinates with the connector shell prelock, The stop portion of the prelock blocking surface and the secondary lock stops cooperation along the reversed of installation direction of the secondary lock To keep being integrally provided.

Preferably, the connector shell further includes prelock maintaining part.The prelock maintaining part is arranged on the shell ontology On, and be arranged between the prelock blocking portion and the maintaining part of lock eventually.When the secondary lock is pre- with the connector shell During lock cooperation, the lock part can ordinatedly be set with the prelock maintaining part along the installation direction blocking of the secondary lock.

Preferably, the prelock blocking portion is from the laterally projecting setting of shell ontology, and with prelock maintaining part longitudinal direction It is arranged at intervals.When the secondary lock coordinates with the connector shell prelock, the stop portion of the secondary lock and described Lock part stops cooperation in the interval between the prelock blocking portion and the prelock blocking portion and respectively with it, by described in Secondary lock is maintained at prelock positions.

Preferably, the axial one or both ends of the prelock blocking portion and the axial one or both ends of the prelock maintaining part It is shifted to install along the assembly orientation of the secondary lock.

Preferably, the prelock blocking portion has prelock blocking surface.The prelock blocking surface with perpendicular to the connector Third angle is formed between the lateral reference plane of the longitudinal direction of housing.The maintaining part of lock eventually has lock retaining surface eventually.The lock eventually Retaining surface and the 4th angle of formation between the lateral reference plane of the longitudinal direction of the connector shell.The third angle is small In the 4th angle.

Preferably, the maintaining part of lock eventually also has lock blocking surface eventually.The lock blocking surface eventually locks retaining surface eventually with described It is arranged at intervals, and surrounds a groove.When the secondary lock is with connector shell lock cooperation eventually, the lock part laterally prolongs The groove is extended to set interiorly.

The utility model also provides a kind of electric connector.The electric connector include it is any one of aforementioned described in connector Component and connection terminal.Mounting hole, axially extending setting of the mounting hole along the lock body are provided on the shell ontology. The connection terminal is set in the mounting hole.When the secondary lock is with connector shell lock cooperation eventually, described two Secondary lock is ordinatedly set with the connection terminal along axially trapping for the lock body.

Compared with prior art, the utility model it is secondary lock by lock part can realize with the prelock of connector shell and Lock cooperation eventually, so as to the dismounting of convenient connection terminal.The secondary lock can be enhanced by stop portion and to matching housing Prelock keep one firm performance, avoid detaching with to matching housing due to external force faulty operation, so as to it ensure that after It is continuous that connection terminal consolidates to the end lock being held in is easy to operate, quickly carries out, and then ensure that efficiency of assembling.

Description of the drawings

Fig. 1 is a kind of dimensional structure diagram of secondary lock provided by the utility model.

Fig. 2 is the perspective view of the secondary lock of Fig. 1 in an axial direction.

Fig. 3 is the dimensional structure diagram of the another embodiment of the secondary lock of Fig. 1.

Fig. 4 is the dimensional structure diagram of another embodiment of the secondary lock of Fig. 1.

Fig. 5 is the three-dimensional cutaway view of the connector shell coordinated with the secondary lock of Fig. 1.

Fig. 6 is close-up schematic view of the connector shell of Fig. 5 at M.

Fig. 7 is the perspective view of the connector shell of Fig. 5 in an axial direction.

Fig. 8 is close-up schematic view of the connector shell of Fig. 7 at Z.

Fig. 9 is a kind of three-dimensional cutaway view of connector assembly provided by the utility model, and secondary lock is shown in Fig. 9 and is connected Connect device housing prelock matching relationship.

Figure 10 is close-up schematic view of the connector assembly of Fig. 9 at N.

Three-dimensional cutaway view of the connector assembly that Figure 11 is Fig. 9 when secondary lock coordinates with connector shell end lock.

Specific embodiment

The utility model is described in detail below in conjunction with the accompanying drawings：

Embodiment one：

It please refers to Fig.1 and Fig. 2, being that one kind provided by the utility model is secondary locks 101.The secondary lock 101 includes lock Ontology 10, the laterally projecting lock part 30 being arranged on the lock body 10 can coordinate with following 201 lockings of connector shell, And it is provided projectingly the stop portion 50 on the lock body 10 can coordinate with 201 longitudinal direction blocking of connector shell.

As long as the concrete shape and construction of the lock body 10 can support other component.In the present embodiment, it is Fully save material and reduction occupied space, the 10 substantially u-shaped plate of lock body.In order to facilitate that it realizes to connection terminal The holding of (not shown) is provided with terminal retention portion 14 on the lock body 10.The terminal retention portion 14 is along described The barrier plate laterally and/or longitudinally extended of lock body 10.Specifically, the terminal retention portion 14 is two madial walls of U-board Upper part-structure.A pair of terminal maintaining part 14, the setting of 14b (or 14c, 14d) face, and surround for connection terminal by it is logical Hole 15 (or 15b).A pair of terminal retention portion 14,14b are circumferentially extending.The terminal retention portion 14,14b, 14c, 14d along connection terminal radial direction (plane that the transverse direction and longitudinal direction of the lock body 10 surrounds) extend, so as to connection terminal On stage portion axially trap cooperation along connection terminal.A pair of terminal retention portion 14,14b can it is laterally adjacent and with it is separate Ground is set, so as to the assembling of convenient connection terminal.The through-hole 15,15b respectively with the installation on following connector shells 201 Hole 212,212b face (at this point, the secondary lock 101 is prelock positions) setting one by one, connection terminal can be installed.It is described Through-hole 15,15b respectively on following connector shells 201 mounting hole 212,212b partial transpositions or overlap (at this point, institute Secondary lock 101 is stated as whole lock position) setting, connection terminal is axially trapped with that can realize, and connection terminal is maintained at On following connector assemblies 105.

The lock part 30 is used for and installation side of the whole lock maintaining part 82 of connector shell 201 along the secondary lock 101 To and reversely blocking cooperation, so as to be maintained at whole lock position.The lock part 30 is set relative to the lock body 10 is laterally projecting It puts.As long as the concrete shape and construction of the lock part 30 can realize corresponding blocking.In the present embodiment, the lock Stop 30 includes prelock blocking surface 32 and whole locking moves back face 34.The prelock blocking surface 32 can be with the prelock of connector shell 201 Auxiliary section 84 stops cooperation along the installation direction of the secondary lock 101, so as to which lock part 30 be avoided to be pushed to whole lock by mistake Position.It is installed to reduce the lock part 30 to the resistance of whole lock position, the prelock blocking surface 32 locks this relative to described Body 10 is tilted backwards to be extended.Correspondingly, when the lock part 30 is in whole lock position, the prelock blocking surface 32 also can be with The blocking cooperation of connector shell 201, to avoid excessive assembling.The end locking, which moves back face 34, to be locked with the end of connector shell 201 The blocking cooperation of auxiliary section 82 coordinates so as to which the lock part 30 be avoided to release with the whole lock of connector shell 201.The end locking It moves back before face 34 is tilted towards relative to the lock body 10 and is extended.Correspondingly, in the present embodiment, the lock part 30 constructs For trapezoid boss shape.In order to facilitate that dismounting, the lock part 30 are arranged on following support arms 35.More specifically, in order into The convenient dismounting of one step, the lock part 30 are arranged on the free end of support arm 35.

Coordinate to effortlessly realize to coordinate locking and release locking, the secondary lock 101 further includes support arm 35.Institute Support arm 35 is stated to be arranged on the lock body 10.The support arm 35 of at least part structure is set with the lock body 10 interval It puts, so as to promote elastic deformation ability.In the present embodiment, the support arm 35 is in cantilever-shaped.It that is to say, the support arm 35 One end be fixed at the lock body 10, the other end is extended to be arranged at intervals with the lock body 10.The support arm 35 It is set with 10 transverse direction of lock body, spaced radial.Specifically, the support arm 35 is set along the longitudinally projecting of lock body 10 It puts.

The stop portion 50 is arranged on the lock body 10, the 50 laterally projecting setting of stop portion, with can be with connecting The 201 longitudinal direction blocking cooperation of device housing divides so as to avoid the prelock cooperation of 101 releasing of secondary lock and connector shell 201 From.As long as the shape and structure of the stop portion 50 can realize corresponding blocking cooperation.In the present embodiment, it is described to stop Move back the substantially boss-shaped of portion 50.The stop portion 50 has prelock retaining face 52.The prelock retaining face 52 is perpendicular to the lock Ontology 10 is laterally extended setting, so as to enhance retentivity as far as possible the secondary lock 101 is firmly pre-assembled in On connector shell 201.As deformation, the prelock retaining face 52 could be provided as the installation side relative to the lock body 10 To extension tilted backwards.Correspondingly, the stop portion 50 can be barb-like.In order to described in further convenient dismounting and reduction Interfering with each other between stop portion 50 and the lock part 30, the stop portion 50 and the lock part 30 are along the lock body 10 Spaced radial setting.Specifically, the stop portion 50 is arranged on the lower section of the lock part 30.It is torn open in order to further convenient Dress, the stop portion 50 are arranged on following second support arms 55.

In order to further enhance the prelock retentivity of the stop portion 50, the stop portion 50 has corresponding prelock retaining Face 52,52b.The prelock retaining face 52,52b and the shape between the lateral reference plane 108 of the longitudinal direction of the lock body 10 Into the second angle β.In fig. 2, the prelock retaining face 52,52b are laterally extended setting, that is to say in a manner that angle is zero degree It is parallel to the lateral reference plane 108 of the lock body 10.Coordinate to effortlessly realize to coordinate locking and release locking, it is described Secondary lock 101 further includes the second support arm 55.Second support arm 55 is arranged on the lock body 10.Second support Arm 55 is used to support the stop portion 50, with promoted the stop portion 50 dismounting when activity space and reduce the stop portion 50 Mobile resistance occurs.Second support arm 55 of at least part structure is arranged at intervals with the lock body 10, so as to enhance The elastic deformation ability of second support arm 55.In the present embodiment, second support arm 55 and 10 diameter of lock body To interval setting.Specifically, second support arm 55 is arranged in bridge like or overarm shape on the lock body 10.It is that is, described The both ends of second support arm 55 are arranged on the lock body 10, and the middle section of second support arm 55 and the lock Ontology 10 is arranged at intervals.

In order to enhance firm retention property, in the present embodiment, a pair of support arms 35,35b support a pair of lateral phase respectively To lock part 30, the 30b of setting.A pair of second support arm 55,55b support respectively a pair of laterally opposed setting stop portion 50, 50b。

In order to enhance the mechanical strength of the secondary lock 101, in the present embodiment, the secondary lock 101 is integrated.Tool Body, in order to facilitate that manufacture and promotion elastic deformation ability, the secondary lock 101 is moulding.

Embodiment two：

Referring to Fig. 3, the utility model provides another secondary lock 101 '.What is different from the first embodiment is that the prelock Retaining face 52,52b moves back face 34 with the second angle β of the lateral reference plane 108 and the whole locking, 34b laterally joins with described The first angle α between 108 of showing up is positive value, and the second angle β is less than the first angle α.It that is to say, kept for prelock The prelock retaining face 52,52b are compared to for locking the whole locking kept eventually, to move back face 34,34b more precipitous, so as to enhance Prelock retentivity.

Embodiment three：

Referring to Fig. 4, the utility model provides another secondary lock 101 ".It is deformed as another, it is described pre- in Fig. 4 It is negative value that locking, which moves back face 52,52b and the second angle β of the lateral reference plane 108,.It that is to say, the prelock retaining face 52, 52b forms a barb face.The first angle α that the end locking is moved back between face 34,34b and the lateral reference plane 108 is positive value. Correspondingly, the second angle β is less than the first angle α, so as to enhance prelock retentivity.

Example IV：

Fig. 5 to Fig. 8 is please referred to, the utility model provides a kind of secondary 101 cooperation of lock that can be recorded with embodiment one Connector shell 201.The connector shell 201 includes shell ontology 210, eventually lock maintaining part 230 and prelock blocking portion 270. The prelock blocking portion 270 and the lock maintaining part 230 eventually are successively set on the shell along the installation direction of the secondary lock 101 On ontology 210.

As long as the concrete shape and construction of the shell ontology 210 can support the other structures of the connector shell 201 .In the present embodiment, the radially extending along the lock body 10 of shell ontology 210, that is to say the axis along connection terminal To extension, so as to which convenient support keeps connection terminal.Mounting hole 212 is provided on the shell ontology 210.The mounting hole 212 keep corresponding connection terminal for installing.In the present embodiment, a pair of of mounting hole 212,212b are along the lock body 10 Longitudinal direction is arranged in order setting.

In order to promote the electrical isolation protection to the shell ontology 210, enclosing side wall 220 is provided on the shell ontology 210. The enclosing side wall 220 surrounds the cavity volume 222 for accommodating the shell ontology 210.Resigning is offered on the enclosing side wall 220 Through-hole 224.The resigning through-hole 224 runs through setting along the installation direction of the secondary lock 101, with the convenient secondary lock 101 dismounting.

Installation side of the lock part 30 of the lock maintaining part 230 eventually and the secondary lock 101 along the secondary lock 101 Coordinate to blocking, the secondary lock 101 is maintained at whole lock position.The concrete shape and construction of the maintaining part 230 of lock eventually As long as convenient blocking.The lock 230 laterally projecting setting of maintaining part eventually.In the present embodiment, the lock maintaining part eventually 230 include boss 232.The boss 232 is from the 210 laterally projecting setting of shell ontology.It is set on the boss 232 fluted 234.The groove 234 can accommodate the lock part 30.More specifically, the groove 234 is vee gutter or dovetail groove.

The secondary lock 101 is avoided mistakenly to be installed to whole lock position in order to be promoted, the connector shell 201 also wraps Include prelock maintaining part 250.The prelock maintaining part 250 is arranged on the shell ontology 210.The prelock maintaining part 250 is along vertical To be arranged on the prelock blocking portion 270 and it is described eventually lock maintaining part 230 between.It that is to say, the prelock blocking portion 270, institute It states prelock maintaining part 250 and the lock maintaining part 230 eventually is successively set on the shell sheet along the installation direction of the secondary lock 101 On body 210.The prelock maintaining part 250 is laterally projecting to be arranged on the shell ontology 210.The machine of the prelock maintaining part 250 If platform shape and it is enough can stop with 30 prelock of lock part coordinate.In the present embodiment, the prelock maintaining part 250 have prelock blocking surface 252.34 plane-plane contact of prelock blocking surface of the prelock blocking surface 252 and the lock part 30, with Longitudinal direction blocking cooperation.The resistance of whole lock position, the prelock blocking are moved to reduce the secondary lock 101 from prelock positions The installation direction of face 252 along the secondary lock 101 is extended before being tilted towards.The prelock blocking surface 252 is a boss (figure In do not indicate) rear end face.In the present embodiment, the prelock blocking surface 252 is the boss for locking maintaining part 230 eventually 232 rear end face.

The prelock blocking portion 270 is laterally projecting to be arranged on the shell ontology 210, thus with the secondary lock 101 Reversed blocking cooperation of the stop portion 50 along the installation direction of the secondary lock 101.The specific shape of the prelock blocking portion 270 As long as shape and structure can realize corresponding blocking.The prelock blocking portion 270 can be laterally projecting boss.At this In embodiment, the prelock blocking portion 270 has prelock blocking surface 272.In order to enhance the prelock blocking portion 270 to described two The blocking retention property of the stop portion 50 of secondary lock 101, the prelock blocking surface 272 is laterally perpendicular to the shell ontology 210 Setting.As deformation, the prelock blocking surface 272 along it is described it is secondary lock 101 assembly orientation turn forward it is extended.Namely It is that the prelock blocking portion 270 is in barb-like.

The prelock blocking surface 272 and the shape between the lateral reference plane 208 of the longitudinal direction of the connector shell 201 Into third angle.In the present embodiment, the prelock blocking surface 272 is laterally extended setting along the connector shell 201. It is, it is parallel to each other using angle as zero mode between the prelock blocking surface 272 and the lateral reference plane 208.The end Locking maintaining part 230 has lock retaining surface 235 eventually.Correspondingly, the maintaining part 230 of lock eventually also has lock blocking surface 236 eventually.It is described Lock retaining surface 235 surrounds the groove 234 with the blocking surface 236 of locking eventually eventually.It is described eventually lock retaining surface 235 with perpendicular to described The 4th angle α is formed between the lateral reference plane 208 of the longitudinal direction of connector shell 201 '.

In order to enhance the prelock retentivity of the prelock blocking portion 270, the prelock blocking surface 272 and the lateral reference Third angle between face 208 is less than the 4th angle α locked eventually between retaining surface 235 and the lateral reference face 208 '. The prelock blocking surface 272, described other specific set-up modes for locking retaining surface 235 eventually can be with referring to aforementioned prelock retaining face 52nd, 52b and whole locking move back face 34,34b set-up mode.

In order to facilitate that assembling and the saving space of the secondary lock 101, in the axial direction of the assembly orientation along connection terminal On, axial one end 253 of axial one end 273 of the prelock blocking portion 270 and the prelock maintaining part 250 is longitudinally displaced to be set It puts.The other end 271 of the prelock blocking portion 270 flushes setting with the other end 251 of the prelock maintaining part 250.Certainly, make For deformation, the other end 271 of the prelock blocking portion 270 can also misplace with the other end 251 of the prelock maintaining part 250 to be set It puts.Correspondingly, the axial extension of the prelock blocking portion 270 is less than the axial extension of the prelock maintaining part 250. The prelock blocking portion 270 and the 250 longitudinally spaced setting of prelock maintaining part, so as to fulfill the institute to the secondary lock 101 The limiting of stop portion 50 and the lock part 30 is stated, so that the secondary lock 101 is maintained at prelock positions.

It is kept to enhance accordingly to coordinate with the secondary lock 101, in the present embodiment, a pair of maintaining part 230 of lock eventually, 230b is back to being arranged on the two side of the shell ontology 210.A pair of of prelock maintaining part 250,250b are back to being arranged on the shell On the two side of ontology 210.A pair of of prelock blocking portion 270,270b are back to being arranged on the two side of the shell ontology 210.

In order to enhance the mechanical strength of the connector shell 201, in the present embodiment, the connector shell 201 is Integral piece.Specifically, in order to facilitate that manufacture and promotion elastic deformation ability, the connector shell 201 are moulding.

Embodiment five：

Fig. 9 to Figure 11 is please referred to, the utility model also provides a kind of connector assembly 105.The connector assembly 105 wraps The secondary lock 101 for including the connector shell 201 of the record of embodiment two and being recorded according to embodiment one.The secondary lock 101 are arranged on the connector shell 201, and be assembled into one.

Fig. 9 and Figure 10 shows the prelock matching relationship of the secondary lock 101 and the connector shell 201.At this point, institute It states prelock maintaining part 250 with the lock part 30 blocking to coordinate, so as to prevent the secondary lock 101 in assembly direction by mistakenly It is pushed to whole lock position longitudinally forward, so as to influence the installation of connection terminal.The prelock blocking of the prelock maintaining part 250 Face 252 and the blocking in 34 face of prelock blocking surface and face of the lock part 30 coordinate.The retaining of the secondary lock 101 Portion 50 and the prelock blocking portion 270 blocking of the connector shell 201 coordinate, so as to prevent the secondary lock 101 along peace Dress direction is reversely mistakenly pushed to longitudinally rearward to be detached with the connector shell 201.The institute of the prelock blocking portion 270 It states prelock blocking surface 272 and 52 face of retaining face of the stop portion 50 stops cooperation with face.

Figure 11 shows the whole lock matching relationship of the secondary lock 101 and the connector shell 201.When connection terminal exists When being installed in place on the connector shell 201, the secondary lock 101 is installed longitudinally forward to whole lock position, so as to fulfill right The holding of connection terminal.It that is to say, the terminal retention portion of the secondary lock 101 axially traps connection terminal cooperation.At this point, institute The lock part 30 for stating secondary lock 101 is extended laterally in the groove 274 of the connector shell 201.The locking The prelock blocking surface 34b in portion 30 stops cooperation longitudinally forward with the front bulkhead (non-label in figure) of the groove 274, so as to Avoid the secondary lock 101 excessively assembling.The whole locking of the lock part 30 moves back the rear end of face 32b and the groove 274 Wall (non-label in figure) stops cooperation longitudinally rearward, so as to which the secondary lock 101 be avoided to flee from whole lock position.

Embodiment six：

The utility model also provided a kind of electric connector (not shown).The electric connector includes connection terminal (not shown) and the connector assembly 105 recorded according to embodiment two.The connection terminal is arranged on the connection In device assembly 105.Specifically, one end of the connection terminal is plugged in the mounting hole 212 of the shell ontology 210.The connection Shape, quantity and the specification of terminal are needed according to application and are selected.In the present embodiment, the connection terminal is can be with male terminal To the female terminal matched.Correspondingly, the electric connector is female connectors.

It should be noted that as without particularly pointing out, occur in the utility model " upper and lower ", " left and right ", " it is preceding, Afterwards ", " one end, other end " etc. is relative concept.Upper and lower directions in " longitudinal direction " the i.e. Fig. 2 shown in Fig. 1；Longitudinally forward, As described secondary lock 101 is installed to the installation direction of the connector shell 201；Longitudinally rearward, as with the longitudinal direction to Preceding opposite direction." transverse direction " is the left and right directions " axial direction " in Fig. 2, the as installation direction of connection terminal.In this practicality Novel middle appearance perpendicular to the lock body 10 longitudinal direction lateral reference face 108, that is to say the transversal of the lock body 10 Face.Perpendicular to the lateral reference face 208 of the longitudinal direction of the shell ontology 210, the cross section of the shell ontology 210 that is to say.Accordingly Ground, the lateral reference face 108 of the lock body 10 are parallel with the lateral reference face 208 of the shell ontology 210.Above-mentioned direction limits It is only used for reference to attached drawing with the convenient relative position relation for understanding all parts.

It these are only the utility model preferred embodiment, be not used to limitation the scope of protection of the utility model, it is any Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the right of the utility model.

Claims (18)

1. a kind of secondary lock, which is characterized in that including：

Lock body, the lock body can keep connection terminal；

Lock part, the lock part is from the laterally projecting setting of the lock body, can longitudinally forward install to connector case Lock locking coordinates eventually with the connector shell longitudinal direction during body；And

Stop portion, the stop portion is from the laterally projecting setting of the lock body, that can hindered longitudinally rearward with connector shell Gear coordinates and keeps prelock one with the connector shell；

The stop portion is set gradually with the lock part along the secondary lock on installation direction longitudinally forward.

2. secondary lock according to claim 1, which is characterized in that further include：

Support arm, the support arm are arranged on the lock body；

At least partly described support arm is arranged at intervals with the lock body in a cantilever or overarm；

The lock part is laterally projecting to be arranged on the support arm.

3. secondary lock according to claim 2, it is characterised in that：

Longitudinally projecting setting of the support arm along the lock body；

The lock part is arranged on the free end of the support arm.

4. secondary lock according to claim 1, which is characterized in that further include：

Second support arm, second support arm are arranged on the lock body；At least partly described second support arm with it is described Lock body is arranged at intervals in a cantilever or overarm；

The stop portion is laterally projecting to be arranged on second support arm.

5. secondary lock according to claim 1, it is characterised in that：

The lock part keeps the axial direction of connection terminal to be arranged at intervals with the stop portion along the lock body.

6. secondary lock according to claim 1 or 2, it is characterised in that：

The lock part includes prelock blocking surface and whole locking moves back face；

The end locking moves back face and forms the first angle between the lateral reference plane of the longitudinal direction of the lock body；

The stop portion has prelock retaining face, the prelock retaining face and the lateral reference perpendicular to the longitudinal direction of the lock body The second angle is formed between face；

Second angle is less than first angle.

7. secondary lock according to claim 1, it is characterised in that：

The stop portion has prelock retaining face；

The prelock retaining face is horizontally set on the lock body；Or

The prelock retaining face is extended from the lock body along the installation direction of the secondary lock is tilted backwards in a barb Face.

8. secondary lock according to claim 1, it is characterised in that：

Terminal retention portion is provided on the lock body；

When the lock part is with connector shell lock cooperation eventually, the terminal retention portion is used to lock this along described with connection terminal Body axially traps cooperation.

9. secondary lock according to claim 1, it is characterised in that：

A pair of lock part is laterally provided projectingly in opposite directions；

A pair of stop portion is laterally provided projectingly in opposite directions.

10. a kind of connector assembly, which is characterized in that including：

Connector shell, the connector shell include shell ontology, eventually lock maintaining part and prelock blocking portion；The prelock blocking portion And the assembly orientation of lock eventually maintaining part along the secondary lock is successively set on the shell ontology；And

Secondary lock according to any one of claim 1 to 9；

When the secondary lock is locked eventually with the connector shell to be coordinated, the lock part stops with the maintaining part end lock of locking eventually Ordinatedly set；

When the secondary lock coordinates with the connector shell prelock, the stop portion and the prelock blocking portion are along described two The reversed of the installation direction of secondary lock stops cooperation to keep being integrally provided.

11. connector assembly according to claim 10, it is characterised in that：

The maintaining part of lock eventually has boss；

Laterally projecting setting of the boss along the connector shell；

It is set on the boss fluted；

When the secondary lock is with connector shell lock cooperation eventually, the lock part is extended laterally in the groove.

12. connector assembly according to claim 10, it is characterised in that：

The prelock blocking portion has prelock blocking surface；

The prelock blocking surface is horizontally installed on the shell ontology；Or the prelock blocking surface is laterally projecting is arranged on the shell On ontology, and the assembly orientation of the prelock blocking surface along the secondary lock is tilted towards preceding be extended in a barb face；

When the secondary lock coordinates with the connector shell prelock, the prelock blocking surface stops with the described of the secondary lock Move back portion stops cooperation to keep being integrally provided along the reversed of the installation direction of the secondary lock.

13. connector assembly according to claim 10, it is characterised in that：

The connector shell further includes prelock maintaining part；

The prelock maintaining part is arranged on the shell ontology, and be arranged on the prelock blocking portion with it is described eventually lock maintaining part it Between；

When the secondary lock coordinates with the connector shell prelock, the lock part can be with the prelock maintaining part described in The installation direction blocking of secondary lock is ordinatedly set.

14. connector assembly according to claim 13, it is characterised in that：

The prelock blocking portion from the laterally projecting setting of shell ontology, and with the longitudinally spaced setting of prelock maintaining part；

When the secondary lock coordinates with the connector shell prelock, the stop portion and the lock part of the secondary lock In interval between the prelock blocking portion and the prelock blocking portion and stop cooperation with it respectively, by the secondary lock It is maintained at prelock positions.

15. connector assembly according to claim 13, it is characterised in that：

The axial one or both ends of the axial one or both ends of the prelock blocking portion and the prelock maintaining part are along described secondary The assembly orientation of lock shifts to install.

16. connector assembly according to claim 10, it is characterised in that：

The prelock blocking portion has prelock blocking surface；

The prelock blocking surface and the formation third angle between the lateral reference plane of the longitudinal direction of the connector shell；

The maintaining part of lock eventually has lock retaining surface eventually；

The lock retaining surface eventually and the 4th angle of formation between the lateral reference plane of the longitudinal direction of the connector shell；

The third angle is less than the 4th angle.

17. connector assembly according to claim 16, it is characterised in that：

The maintaining part of lock eventually also has lock blocking surface eventually；

The lock blocking surface eventually is arranged at intervals, and surround a groove with the retaining surface of locking eventually；

When the secondary lock is with connector shell lock cooperation eventually, the lock part extends laterally to the groove and sets interiorly It puts.

18. a kind of electric connector, which is characterized in that including：

Connector assembly according to any one of claim 10 to 17 is provided with mounting hole on the shell ontology, described Axially extending setting of the mounting hole along the lock body；And

Connection terminal, the connection terminal are set in the mounting hole；

When the secondary lock coordinates with connector shell end lock, the secondary lock locks this with the connection terminal along described Axially trapping for body is ordinatedly set.