CN1277337C

CN1277337C - Water-proof electric connector pair

Info

Publication number: CN1277337C
Application number: CNB021540144A
Authority: CN
Inventors: 北村裕; 小金谷贤
Original assignee: JST Mfg Co Ltd
Current assignee: JST Mfg Co Ltd
Priority date: 2001-12-05
Filing date: 2002-12-05
Publication date: 2006-09-27
Anticipated expiration: 2022-12-05
Also published as: CN1423371A; JP2003173840A; TWI248236B; TW200301028A; KR20030046309A

Abstract

The connector with a lock structure is provided with a locking projection 13 set on an outside surface of a male housing 10, a lock arm 33 having a lock claw 35 engaging with the locking projection 13 on an outside surface of a female housing 20 through hinge-shaped leg parts 35, capable of elastic deformation, and a pressure operating lever 36 at a back end part of the lock arm 33 extending backwards from the hinge-shaped leg parts 35. Protection pillar bodies 50 extending adjacently to both sides of the back end part of the pressure operating lever of the lock arm provided set in protrusion at a rear cover housing 22, and lock shoulder parts 51 to control an upper limit of a range of movement of the pressure operating lever is provided at an upper end of the protection pillar bodies 50, and can prevent deformation and damage of a lock arm.

Description

Paired waterproof electrical connector

Invention field

The present invention relates to the concavo-convex electric connector of a pair of waterproof, be suitable for being engaged with each other and comprise a mutual interlocking gear, wherein the shell that this recessed connector had has a rear aperture that wherein is fixed with a seal.

Background technology

Having known has some to use in comprising the pair of connectors of mutual interlocking gear or to the structure of its suggestion.Involved in the present invention is one of them, is a pair of concavo-convex connector, and male connector has a locking lug on its shell (being protruding shell).Correspondingly, recessed connector has one and one claw type all-in-one-piece locking arm on its shell (being recessed shell), to mesh with the locking lug.Being formed on hinge shape supporting leg on the recessed shell and being it is used for the locking arm supporting and remains on strain part on this shell.Locking arm have one extend back above the rear end of these supporting legs and one and this rear end form the push rod of one.

Here notice that a slit is arranged between the outer surface of push rod and recessed shell.As common in the vehicle, this slit can produce trouble when a large amount of the end of a thread tangle in a very narrow space.Specifically, the end of a thread that belongs to any other lead may be caught push rod, thereby by mistake makes locking arm and locking lug break away from engagement.On recessed shell, forming a pair of retaining wall, thereby extending in the suggestion that this problem proposes for avoiding along the opposite side of above-mentioned locking arm.In another suggestion, these retaining walls or similar protection component are used for covering locking arm and a zone of locking lug maintenance engagement.But the push rod that is arranged at the locking arm rear end must be by user or operator with his or his finger push, thereby should provide an open space around push rod.As a result, although these retaining walls are arranged, outside the end of a thread is invaded in the gap easily, thereby appears at inevitably between the adjacent external space of push rod and recessed shell.In this case, will hinder his or her wiring operations more or less, permanent deformation, fracture or any damage can appear in locking arm.As a result, locking arm can not be used as interlocking member again, and these the end of a thread also can damage or tear and cause connecting up imperfect sometimes.

On the other hand, the water-proof connector that further suggestion provides a pair of interlocking has been proposed.According to one of them suggestion, a sealant piece is arranged in the middle of the intermeshing concavo-convex connector.In another suggestion, the sealant piece that is placed in the recessed shell rear aperture keeps putting in place (for example seeing Japanese Patent Application Publication communique No.2001-185279 and No.2001-196219) by a bonnet as the dispersive element in the above-mentioned opening of can packing into.

Summary of the invention

The present invention proposes in view of these prior art structures, and its objective is provides a pair of improved waterproof electrical connector.Among the present invention, bonnet comprises a protective device in conjunction with recessed shell, is used to make the push rod of locking arm to move freely, and needn't worries to damage above-mentioned arm.

For realizing this purpose, a pair of water-proof connector that is suitable for being engaged with each other is provided, comprise the mutual interlocking gear that a locking arm that is engaged with by a locking lug and basically constitutes.One of them connector is one to have the male connector of this locking lug on its shell (being protruding shell), and another connector is one to have the recessed connector of this locking arm on its shell (being recessed shell).This recessed shell also comprises hinge shape supporting leg formed thereon, is used to support locking arm and makes its strain, and wherein locking arm extends back above these supporting legs, thereby one and a push rod all-in-one-piece rear end are provided.This is characterised in that connector, and this recessed shell consists essentially of a housing and and is contained in bonnet in the rear aperture of this housing, and a recessed contact and a seal are contained in the housing.And bonnet keeps seal to put in place, and locking arm is arranged on the outer surface of housing of recessed shell.A pair of protection pillar is outstanding from bonnet, extends to respectively near the posterior transversal end of push rod, and wherein hook-shaped shoulder forms one with the upper end of protection pillar, thereby limits the upwards oscillating motion of above-mentioned push rod.

The above-mentioned hook-shaped shoulder of protection pillar disturbs the motion of locking arm never when manual operation once in a while, but will positively protect push rod not to be subjected to the effect of any power unintentionally, and this power may make above-mentioned push rod produce distortion, damage and/or fracture.

Preferably, each protection pillar has a housing, and this housing stretches out from the rear end of its hook-shaped shoulder, thereby each back relatively bight of push rod has the rear surface that this housing of a usefulness covers.The back angle part of push rod does not have lateral surfaces, top surface and the posterior face of being covered by the face corresponding with these protection pillars like this.Prevented that any outside the end of a thread from catching locking arm with more guaranteeing in this way.

The recessed contact that remains in the recessed shell can be the pod contact that is fastened on the end of a thread, and the hole that is used to insert wherein is formed on seal and bonnet, thereby in seal these the end of a thread is kept waterproof sealing.

On the other hand, protruding shell roughly is a rectangular shape, has the front end and a cylindrical cavity of an opening of stretching out from here.A plurality of plug contacts penetrate the rear wall of protruding shell, thereby have a inner that is arranged in the cylindrical cavity respectively.Another seal is contained on the rear wall of protruding shell, and has the hole that is used to insert this joint contact.

Accompanying drawing is described

Fig. 1 is the perspective view of a pair of waterproof electrical connector that provides here;

Fig. 2 is the plane graph of water-proof connector;

Fig. 3 is the cutaway view of being got along Fig. 2 center line 3-3;

Fig. 4 is the amplification view of a push rod, and this push rod forms the part of the locking arm that one of them above-mentioned connector comprises;

Fig. 5 is the perspective view of a shell, and this shell constitutes the recessed connector as a water-proof connector;

Fig. 6 is the perspective view of potted component included in the recessed connector of waterproof;

Fig. 7 is the perspective view of the same bonnet that comprises in the recessed connector of waterproof;

Fig. 8 is the central authorities and the vertical sectional view of bonnet;

Fig. 9 is the perspective view as the recessed connector of another water-proof connector.

Embodiment

Referring now to accompanying drawing some embodiments of the present invention are described.

Fig. 1 illustrates a pair of concavo-convex water-

proof connector

1 and 2 that has mutual interlocking gear herein that is arranged at, and is in shown in the figure under the state of packing among another.

As seeing from Fig. 2,3 and 9, male connector 1 comprises an insulation crust 10 of being made by nylon or similar ambroin (below be called protruding shell).This shell 10 is cuboid boxes roughly, and stretch out from a cavity 11 front portion of the opening that extend its side.A plurality of plug contacts 18 penetrate the rear wall or the bottom 12 of shell, and their the inner is arranged in the cavity 11.The lug that can lock 13 that is formed at protruding shell 10 outer surface of upper centers have one forward with downward-sloping slope 14.This shoulder 15 that can lock lug vertically descends from the back top edge on this slope 14.Oncus 16,16 upper surfaces from protruding shell 10 project upwards, and make can lock lug 13 insertions therebetween.Be used for this male connector is fixed on any required object from the

ear

17,17 that the opposite side portion of protruding shell is stretched out.One seal 55 of packing in the cavity 12 rearmost end zones is fastened on the rear wall or bottom 12 of shell.Penetrating the hole 56 that sealing part 55 is formed at wherein is used for plug contacts 18 is inserted wherein (see figure 3).Show the down at right angles bending greatly from the lead-in wire 19 of above-mentioned rear wall 12 rearwardly projecting these plug contacts.Above-mentioned these lead-in wires 19 and ear 17 are used for according to above-mentioned required purpose this male connector being surface mounted in a printed circuit board (PCB) 60.

As shown in Fig. 1,2 and 3, recessed connector 2 also has an insulation crust of being made by any appropriate insulation plastics (below be called recessed shell) 20.This shell 20 comprises a housing 21 and a bonnet 22.Accommodate pod contact (being recessed contact) 40 and another seal 42 (see figure 6)s in the housing 21.Bonnet 22 is packed in the rear aperture 28 of this housing, thereby seal 42 is remained on its fixed position.

Housing 21 has the chamber, contact 24 of a cuboid core 23 (see figure 3)s and a plurality of dispersions.Pod contact (being recessed contact) 40 remains on respectively in these chambers 24, and these chambers 24 form abreast, thereby penetrate core 23 corresponding to plug contacts 18 at fore-and-aft direction.A lance 25 outstanding from the inwall of each chamber 24 will hook each pod contact.One constitute for the wall of set a distance at interval around the shell 26 that core 23 forms with it by a plurality of.Thereby these walls of shell will cover each wall of protruding shell 10 by rights.The one back extension 27 with rectangle cylindrical shape stretches out from the rear end of above-mentioned hexahedron core 23, thereby a rear aperture 28 that is used to receive seal 42 and bonnet 22 is provided as below will describing in detail.Shell 26 has the top of regional opening in the middle, and so that relative and isolated edge to be provided, retaining

wall

29,29 projects upwards from here, with protection locking arm 33.The rear end of retaining wall 29 extends to from the back extension 27 upright wall 30 of respectively locking that makes progress.The whole opposite side edge that connects a shared connection top 31 of the front end of above-mentioned retaining wall 29.The upper end of above-mentioned locking wall 30 forms inwardly outstanding and opposed facing shoulder.Back extension 27 has a upper surface and a lower surface, and they form a pair of locking key 32 of stretching out from these surfaces respectively.

The locking arm 33 that is positioned on the upper surface of core 23 and extension 27 is flat fuel plates.The middle part of locking arm 33 is connected on two hinge shape supporting legs 34 and by they supportings, these two supporting legs 34 are formed between core 23 and the extension 27, thereby self can strain.Locking arm 33 has a front end that is configured as hook-type pawl 35, is used for locked lug 13 engagements with protruding shell 10.One push rod 36 is formed on the rear end of locking arm and is integral with it, and it extends back above the rear end of hinge shape supporting leg 34 and close extension 27.And if as operator or user during with his or her finger push bar 36, locking arm 33 will then as a class fulcrum, thereby make pawl 35 break away from engagement from locking lug 13 around 34 rotations of hinge shape supporting leg.Rigid sheet 37 is given prominence to and is integral with it from the opposite end side direction of push rod 36.

Pod contact 40 is cockle on each lead 41 at first.Rear aperture 28 by cylindrical extension 27 pushes in the chamber 24 then, up to each lance 25 and their permanent engagement.The seal 42 that inserts rear aperture 28 portion 27 that will extend back remains on the fluid seal state.As seen from Figure 6, this seal is the parallelepiped piece, make by rubber or analog, thereby with the interior periphery tight engagement of above-mentioned rear aperture 28.In each pod contact 40, remain in the circular hole 43 of seal 42 to the end of a thread 41 same liquid seals of cockle.These holes are in seal 42 and penetrate it and form one above-listed and one following.

Similar to housing 21, be used for seal 42 with the extension of packing into by its rear aperture keep the bonnet 22 that puts in place equally by nylon or similarly suitably plastics make.As seeing best in Fig. 7 and 8, a main part 45 of bonnet 22 closely is contained in (see figure 3) in the above-mentioned rear aperture 28.The circular hole 46 corresponding with the hole 43 in the sealant is open by bonnet, forms above-listed and following equally.A cover 47 that stretches out from the rear end of main part 45 has a rim that reaches on the mantle 48, on the rear portion extension 27 that installs to housing 21.The outer surface region of the zone of this mantle and bonnet main part 45 is given set a distance at interval.Above-mentioned mantle 48 extends on the whole feather edge of cover 47 and lateral edges.But mantle 48 only partly extends along its top edge, thereby the central region of a blank is provided.To see that each in the upper and lower surface of this mantle 48 has two

otch

49 and 49, thereby be assembled in each locking key 32 of rear portion extension 27.On the other hand, a pair of

protection pillar

50 and 50 upsides from mantle 48 make progress upright at the middle part of its blank.Inwardly face with each other with each hook-shaped shoulder 51 of protecting the upper end of pillar 50 to form one.Each protection pillar 50 also comprises a housing 52, and this housing 52 stretches out from the rear end of its hook-shaped shoulder 51 in such a way, makes housing 52 extend to the upper area of the rim of cover 47.Thereby a groove 53 is provided, its three sidepieces are limited by pillar 50, shoulder 51 and housing 52.When such bonnet 22 inserts in the rear aperture 28 of housing 21 as shown in Figure 1, these up and down to otch 49 will with each locking key 32 fixed engagement.As shown in Figure 3, when this bonnet set by this way put in place after, it positively remains on seal 42 in the rear aperture 28.Protection pillar 50 under this state will with the inner surface engagement of the locking wall 30 of housing 21, thereby near the rear end of the push rod 36 of locking arm and in abutting connection with its opposed end location.Rigid sheet 37 under this state and each groove 53 engagement, thus rise to its stroke upper limit top by hook-shaped shoulder 51 anti-throw-out levers 36.The rear portion of these thin slices 37 is covered by housing 52, thereby can not catch the push rod of locking arm 33 from any the end of a thread of outer lead.Any external force all can not act on the push rod 35 and by mistake or unfriendly make its distortion or fracture.On the other hand, neither one can hinder the proper motion of above-mentioned push rod 36 by any way in protection pillar 50, hook-shaped shoulder 51 and the housing 52.As from Fig. 4, seeing, and if when finger or when similarly instrument promotes this bar, locking arm 33 will be around hinge shape supporting leg 34 (as fulcrum) rotation one low-angle.Therefore the front end pawl 35 of locking arm will rise to locking lug 13 tops of male connector and discharge from here.

Fig. 3 illustrates and such male connector 1 that recessed connector 2 couples, wherein because the part that is sealed each other by the seal of at first mentioning 55 is in the engagement of waterproof sealing them.Another seal 42 provides the water proofing property of the rear aperture 28 of the housing 21 that recessed connector 2 comprised.

In described embodiment, rigid sheet 37 is stretched out from the relative back bight of the push rod 36 of locking arm 33.If but these bights, back are designed so that their position is positioned at hook-shaped shoulder 51 belows of protection pillar 50, then can save this thin slice.

In a word, be positioned at protection pillar on the recessed shell bonnet with hook-shaped shoulder as preventing the upper limit that the locking arm push rod moves upward.Locking arm can move freely, and the protection pillar prevents that it from producing any distortion and damage, even there is any external force to act on the push rod.

According to dependent claims 2, all there are three surfaces in each bight, back of push rod, i.e. side, end face and back of covering by the protection pillar.Therefore further advantageously, any the end of a thread that belongs to outer lead is all caught push rod never.

Claims

1. a pair of water-proof connector that is suitable for being engaged with each other, comprise a mutual interlocking gear that constitutes by a locking lug (13) and a locking arm that is engaged with (33) basically, one of them connector is one to have the male connector (1) of above-mentioned locking lug (13) on its protruding shell (10), another connector is one to have the recessed connector (2) of above-mentioned locking arm (33) on its recessed shell (20), this locking arm (33) has a front end pawl (35) that meshes with this locking lug (13), wherein above-mentioned recessed shell (20) also comprises hinge shape supporting leg (34) formed thereon, be used to support locking arm (33) and make its strain, wherein locking arm (33) extends back above these supporting legs, thereby provide one and a push rod (36) all-in-one-piece rear end

It is characterized in that, this recessed shell (20) consists essentially of a housing (21) and and is contained in bonnet (22) in the rear aperture (28) of this housing, so recessed contact (40) and a seal (42) are contained in the housing (21), and bonnet (22) keeps seal (42) to put in place

Locking arm (33) is arranged on the outer surface of housing (21) of recessed shell (20); And

A pair of protection pillar (50) is outstanding from bonnet (22), extends to respectively near the posterior transversal end of push rod (36), and wherein hook-shaped shoulder (51) forms one with the upper end of protection pillar (50), thereby limits the upwards oscillating motion of above-mentioned push rod (36).

2. a pair of water-proof connector described in claim 1; it is characterized in that; each protection pillar (50) has a housing (52); this housing (52) stretches out from the rear end of its hook-shaped shoulder (51), thereby each back relatively bight of push rod (36) has the rear surface that this housing of a usefulness (52) covers.

3. a pair of water-proof connector as claimed in claim 1 or 2 is characterized in that, push rod (36) has the relative back bight that forms one respectively with a rigid sheet (37), and rigid sheet (37) is limited in below the hook-shaped shoulder (51).

4. a pair of water-proof connector as claimed in claim 1, it is characterized in that, the recessed contact (40) that remains in the recessed shell (20) is the pod contact that is fastened on the end of a thread (41), allows the hole (43,46) of its insertion to be formed on seal (42) and the bonnet (22).

5. a pair of water-proof connector as claimed in claim 1, it is characterized in that, protruding shell (10) roughly is a rectangular shape, a front end and a cylindrical cavity (11) with an opening of stretching out from here, make a plurality of plug contacts (18) penetrate the rear wall (12) of protruding shell, thereby all having a inner that is arranged in the cylindrical cavity (11), another seal (55) is contained on the rear wall of protruding shell (10), and has the hole (56) that is used to insert this plug contacts (18).