CN202749591U

CN202749591U - Dummy plug and waterproof connector

Info

Publication number: CN202749591U
Application number: CN 201220105366
Authority: CN
Inventors: 志贺克己
Original assignee: Tyco Electronics Corp
Current assignee: Tyco Electronics Japan GK; TE Connectivity Corp
Priority date: 2011-03-10
Filing date: 2012-03-09
Publication date: 2013-02-20
Anticipated expiration: 2022-03-09
Also published as: JP2012190632A

Abstract

The utility model relates to a dummy plug and a waterproof connector. Specifically, aiming at waterproof connectors with narrowly arranged contacts, the utility model provides the dummy plug which can be inserted to an assigned position regardless of limitation by the orientation of a snapping head. The dummy plug has a plug body (71) and the snapping head (75), wherein the plug body (71) is inserted into a closed hole of a wire rod sealing member corresponding to a hollow cavity which is formed because of non-insertion of a contact in the waterproof connector, the snapping head (75) is connected with the plug body (71) and is formed at the rear end of an insertion direction the dummy plug (70) which is provided with an open slot (77), and the open slot (77) is axially formed from the top of the snapping head (75) to an assigned position of a major-diameter part (73) along the dummy plug (70). Through arrangement of the open slot (77), radial left and right parts (a first girder part L1 and a second girder part L2) clamping the major-diameter part (73) of the open slot (77) and the snapping head (75) can function as cantilever beams.

Description

Illusory plug and water-proof connector

Technical field

The utility model relates to the illusory plug that is installed on water-proof connector and the water-proof connector that uses this illusory plug.

Background technology

The known water-proof connector that in order to stop moisture to be invaded from the outside Wire seal is set in connector shell or is known as the parts of blanket rubber stopper.The Wire seal that is used for water-proof connector, the corresponding position of each cavity with in a plurality of cavitys at the housing of connector possesses the contact patchhole, if contact passes this contact patchhole and inserts cavity, the electric wire that then is connected in contact is close to the inner peripheral of contact patchhole, has guaranteed thus water proofing property.Yet, for the circuit substrate that is connected with water-proof connector, exist plurality of specifications.Be formed at the cavity of connector, corresponding with the situation of maximum contacts of needs among the specification of circuit substrate and determined its quantity.Therefore, according to the circuit substrate that connects, contact is not limited to insert whole cavitys.In this case, in order to ensure water proofing property, and as the corresponding contact patchhole in the empty chamber of cavity of not inserting contact, insert the plug that is known as illusory plug (dummy plug) or waterproof plug and by inaccessible.

About connector, corresponding with the densification of the circuit that connects, the contact of adjacency and electric wire spacing each other narrows down.So, corresponding to contact interval (interval of the cavity of housing) is narrowed down, also be necessary to make the interval of the contact patchhole of Wire seal to narrow down.

At this, illusory plug possesses the larger locking head of column part that diameter inserts than the contact patchhole to Wire seal.Illusory plug locks head by it and is limited to the housing of water-proof connector, thereby carries out the location of direction of insertion, and guarantee and housing between water proofing property.Yet if the interval of contact patchhole narrows down, as shown in Figure 6, the locking head 101 of the illusory plug 100 of adjacency interferes with each other, and generation can not be inserted into a side illusory plug 100 situation of the assigned position of direction of insertion.If the diameter that locks head 101 is decreased to avoid the degree of interfering, the function that then locks head 101 is unrealized, the illusory depths that is plugged with the cavity that may enter to housing.

For this problem points, patent documentation 1 has proposed a solution.

As shown in Figure 7, patent documentation 1 has proposed to lock the part that all is provided in a side of circumference on every side that head 201 is not located at illusory plug 200.So, because the orientation of the locking head 201 of illusory plug that can be by making adjacency tilts to avoid mutual interference, thereby compare with situation about being located at around all, can make the arrangement pitches of illusory plug 200 narrower.

Patent documentation 1: TOHKEMY 2001-357927 communique

The utility model content

Yet the motion of patent documentation 1 for fear of interference, is necessary to make the orientation that locks head 201 to tilt.Adjust to lock the orientation of head and the cavity that illusory plug that will be small inserts housing, this makes the operating efficiency reduction.In the many situations of the quantity of inserting illusory plug, the productivity ratio of water-proof connector lowly be significant.

The utility model is based on such problem and makes, and its purpose is, for the narrow water-proof connector of the arrangement pitches of contact, provides a kind of illusory plug that can pay no attention to locking the orientation of head and be inserted into assigned position.

In addition, the utility model is to provide the water-proof connector that possesses so illusory plug as purpose.

Illusory plug of the present utility model possesses the plug body and locks head, described plug body inserts the closed hole of Wire seal corresponding to the cavity that becomes the sky chamber with not inserting contact, described locking head and the rear end of filling in body and linking to each other and being formed at the direction of insertion of illusory plug.

And illusory plug of the present utility model constitutes, and the assigned position from the locking head to the direction of insertion of filling in body forms otch, and thus, locking head and plug body can be from the locking head to assigned position along radially carrying out elastic displacement.

According to illusory plug of the present utility model, because the arrangement pitches of contact is narrow, even thereby the locking head of the illusory plug of adjacency is temporarily interfered each other, if against interfering illusory plug further is pressed into, then lock head and carry out elastic displacement one another along radially mutually pushing towards radially inboard or center, thus, lock the reduced of head, thereby can avoid interfering.At this moment, produce owing to elastic displacement and the orientation that locks head are irrelevant, thereby forget it when inserting illusory plug and lock the orientation of head.

In addition, illusory plug of the present utility model possesses the plug body and locks head, the closed hole of the Wire seal that described plug body insertion becomes the sky chamber with not inserting contact cavity is corresponding, described locking head links to each other with described plug body, be formed at the rear end of the direction of insertion of described illusory plug, described illusory plug constitutes, the assigned position of the described direction of insertion from described locking head to described plug body forms along axial fluting, thus, described locking head and described plug body can be from described locking heads to described assigned position along radially carrying out elastic displacement.

In addition, illusory plug of the present utility model possesses the plug body and locks head, the closed hole of the Wire seal that described plug body insertion becomes the sky chamber with not inserting contact cavity is corresponding, described locking head links to each other with described plug body, be formed at the rear end of the direction of insertion of described illusory plug, described illusory plug constitutes, the assigned position of the described direction of insertion from described locking head to described plug body makes along axial fluting and forms across, thus, described locking head and described plug body can be from described locking heads to described assigned position along radially carrying out elastic displacement.

In illusory plug of the present utility model, otch can accomplished in various ways, but from the viewpoint of the making easiness of illusory plug, is preferably along axial fluting.This fluting forms to the assigned position of the direction of insertion of filling in body from locking head.So locking head and plug body can be from the locking head to assigned position along radially carrying out elastic displacement.

In the situation about forming as otch of will slotting, 2 flutings are formed across.Mode according to 2 flutings are intersected can make the circumferential scope stenosis of carrying out elastic displacement narrow.This means week upwards residual in large quantities do not carry out the zone of the locking head of strain, make the original function of the locking that locks head more stable and obtain.

The utility model provides the water-proof connector that possesses above arbitrary illusory plug.This water-proof connector possesses connector shell, Wire seal and illusory plug, described connector shell has a plurality of contact patchholes, described Wire seal is contained in connector shell and has a plurality of closed holes that form in the position corresponding with the contact patchhole, and described illusory plug inserts closed hole corresponding to contact patchhole that becomes the sky chamber with not inserting contact.As this illusory plug, use arbitrary illusory plug described above.

According to the utility model, for the narrow water-proof connector of the arrangement pitches of contact, provide a kind of illusory plug that can pay no attention to locking the orientation of head and be inserted into assigned position.

Description of drawings

Fig. 1 is the stereogram of the water-proof connector of present embodiment, has shown that (a) the illusory plug of adjacency produces the state of interfering, thereby (b) has shown the state of having eliminated interference by the illusory plug that is pressed into a side.

Fig. 2 shows the illusory plug of present embodiment, (a) has shown the example of the fluting that is formed with yi word pattern, (b) has shown the example that is formed with cross fluting.

Fig. 3 (a) has shown the profile of the Width (the x direction of Fig. 1) of Fig. 1 (a), (b) is the enlarged drawing of the 3b part of (a).

Fig. 4 (a) has shown the profile of the thickness direction (the y direction of Fig. 1) of Fig. 1 (a), (b) is the enlarged drawing of the 4b part of (a).

Fig. 5 (a) has shown the profile of the Width (the x direction of Fig. 1) of Fig. 1 (b), (b) is the enlarged drawing of the 5b part of (a).

Fig. 6 is the figure that shows existing water-proof connector, (a) is stereogram, (b) is part sectioned view.

Fig. 7 is the stereogram that shows patent documentation 1 disclosed illusory plug (waterproof plug).

Symbol description

1 water-proof connector

10 inner casings

11 contacts hold cavity

12 surrounding walls

13 seals hold recess

15 retainers hold recess

16 housings lock lance

17 holding tanks

20 lids

21 coupling side contacts part patchholes

30 retainers

31 contact patchholes

40 seal members

50 shells

51 contact patchholes

60 Wire seals

61 closed holes

62,62 ridges

70,70a, 70b, 80 illusory plugs

71 plug bodies

72 minor diameter parts

73 large-diameter portions

74 are pressed into projection

75,75a, 75b lock head

76 locking surfaces

77,87 flutings

L1 the 1st beam section

L2 the 2nd beam section

L3 the 3rd beam section

L4 the 4th beam section

Embodiment

Below, with reference to Fig. 1～Fig. 5 and based on execution mode the utility model is described.

The water-proof connector 1 of present embodiment possesses inner casing 10, lid 20, retainer 30, seal member 40, shell 50 and Wire seal 60.In addition, water-proof connector 1 possesses illusory plug 70, and this illusory plug 70 inserts the closed hole 61 of the Wire seal 60 corresponding with empty chamber.

＜inner casing 10 〉

Inner casing 10 forms the roughly rectangular shape that extends along Width (the x direction of Fig. 1), above-below direction (the y direction of Fig. 1) and fore-and-aft direction (the z direction of Fig. 1) (with reference to Fig. 3～Fig. 5).

At inner casing 10, be provided with for holding electric power that figure do not show and hold cavity 11 with contact or signal with a plurality of contacts of contact (below, both are referred to as " contact ").The direction that contact represents along the arrow A by Fig. 3 (a) is inserted each contact and is held cavity 11.

Hold cavity 11 at each contact that connects along fore-and-aft direction, be provided with for the housing that contact is once locked and lock lance 16 (Fig. 4 (a)).

Be provided with surrounding wall 12 at inner casing 10, the inside of this surrounding wall 12 consists of the seal that holds Wire seal 60 and holds recess 13.Surrounding wall 12 is extending towards the place ahead with the front periphery of shell 50 opposed inner casings 10.

In addition, at inner casing 10, be provided with the retainer that retainer 30 is installed and hold recess 15.Retainer holds recess 15 and holds recess 13 than seal and more be located at the rear.

In addition, in water-proof connector 1, take a side that contact was inserted as before.

＜seal member 40 〉

The seal member 40 that consists of by the rubber reaction-injection moulding with insulating properties, such as Fig. 3～shown in Figure 5, the mode that is close to the outside of inner casing 10 to form ring-type disposes.Sealing parts 40, when the part of coupling side-connector (diagram omit) is inserted the holding tank 17 that is formed between inner casing 10 and the shell 50 and when chimeric with water-proof connector 1, with the coupling side body (diagram is omitted) of coupling side-connector and the clearance seal of inner casing 10, and stop water to immerse the inside of inner casing 10 from fitting portion.

＜lid 20 〉

The lid 20 that consists of by the resin reaction-injection moulding with insulating properties consists of in the mode of the rear side that is installed on inner casing 10.Lid 20 extends and the back side of covering inner casing 10 along Width, and a plurality of coupling side contacts part patchholes 21 that coupling side contacts part inserts connect and form along fore-and-aft direction.

＜retainer 30 〉

The retainer 30 that consists of by the resin reaction-injection moulding with insulating properties consists of to be mounted to the modes that the retainer that is formed at inner casing 10 holds in the recess 15, form along Width extend roughly tabular.Retainer 30 has to hold a plurality of contacts that mode corresponding to cavity 11 form with the contact of being located at inner casing 10 and inserts through holes 31.And retainer 30 can connect contact at contact and insert through hole 31 and insert the void locking position that contact holds cavity 11 in and remained on inner casing 10 by void, and then puts at the real card stop bit that is pressed into and to be fixed on inner casing 10.If retainer 30 is put at the real card stop bit and is fixed on inner casing 10, then contact is stopped the locking of part 30 secondaries.

＜shell 50 (connector shell) 〉

Shell 50, the mode that the seal that holds Wire seal 60 with covering holds recess 13 is mounted, and carries out the anticreep of Wire seal 60.That is, Wire seal 60 is contained in shell 50.

At shell 50, be provided with a plurality of contact patchholes 51 holding position corresponding to cavity 11 with contact.Contact patchhole 51 connects along fore-and-aft direction, and the electric wire (diagram is omitted) that is connected in contact passes contact patchhole 51 and is exported to the rear.

In addition, the face with the side that is inserted with contact of shell 50 is called the contact inserting surface.As shown in Figure 1, in the assigned position of contact inserting surface, the identification signs such as reference numbers.Utilize identification sign, the operator can easily identify each contact patchhole 51.Although limit especially, few or when not having the space etc. when the number of poles of connector, also can not insert the identification signs such as digital.

＜Wire seal 60 〉

Wire seal 60 is waterproof parts of blanket type, and roughly tabular Wire seal 60 seal that is contained in inner casing 10 holds in the recess 13.Common by elastomer (elastomeric polymer) reaction-injection moulding is made Wire seal 60, still, if can bring into play the material of water-proof function, so also without limits.

Peripheral shape, the size of making Wire seal 60 in the mode of being close to the inner peripheral surface of surrounding wall 12.Such as Fig. 3～shown in Figure 5, at the outer peripheral face of Wire seal 60, be provided with for a plurality of ridges 62 that improve the close property of being close to the inner peripheral surface of the surrounding wall 12 of inner casing 10.

In addition, put down in writing for the existence that makes ridge 62 and obviously changed, ridge 62 and inner casing 10 are interfered.

At Wire seal 60, be formed with a plurality of closed holes 61 holding position corresponding to cavity 11 with contact.Closed hole 61 connects along fore-and-aft direction, with the electric wire that the contact that is contained in contact and holds cavity 11 is connected, passes closed hole 61 and is exported to the rear.

Such as Fig. 3～shown in Figure 5, in the interior week of each closed hole 61, be provided with a plurality of ridges 63, these ridges 63 are close to the outer peripheral face of electric wire, have stoped thus the circulation via the moisture of each closed hole 61.Be connected in the electric power diameter of the electric wire of contact, thicker with the diameter of the electric wire of contact than being connected in signal, its diameter is about about 1.0mm.In contrast, being connected in signal is about about 0.5mm with the diameter of the electric wire of contact.The diameter of electric wire means the external diameter of coating.Consider the diameter of these electric wires and suitably determine the opening footpath of closed hole 61, the overhang of ridge 63.But the diameter of this electric wire is an example only.

In the water-proof connector 1 that consists of as above, sometimes contact holds residual the cavity (empty chamber) that does not hold contact among the cavity 11.As mentioned above, by illusory plug 70 being inserted the closed hole 61 of the Wire seal 60 corresponding with this sky chamber with not omitting, thus the function of maintenance water-proof connector 1.Present embodiment has feature at this illusory plug 70.

Shown in Fig. 2 (a), illusory plug 70 possesses columned plug body 71 and is located at the locking head 75 of the rear end of plug body 71.By the raw material reaction-injection moulding identical with Wire seal 60 made illusory plug 70.

Plug body 71 is made of minor diameter part 72 and large-diameter portion 73, and minor diameter part 72 occupies to assigned position from the top, and large-diameter portion 73 links to each other with minor diameter part 72 and occupies to the locking head of rear end.Be mounted at illusory plug 70 under the state of assigned position of water-proof connector 1, the contact of minor diameter part 72 from the closed hole 61 of Wire seal 60 to inner casing 10 holds cavity 11 and disposes, and large-diameter portion 73 is configured in the contact patchhole 51 of shell 50.Minor diameter part 72 can be close to and the mode of bringing into play water-proof function is set its diameter with a plurality of ridges 63 that project to closed hole 61 under the state in insert-seal hole 61.In addition, large-diameter portion 73 is set its diameter in the mode of being close to the inwall of zoning contact patchhole 51 under the state in inserting contact patchhole 51.But around large-diameter portion 73, along the axially extended projection 74 that is pressed into along circumferentially and equally spaced forming, this is pressed into projection 74 and is close to aforementioned inwall.Be close to respectively Wire seal 60 etc. by minor diameter part 72 and large-diameter portion 73, do not extract illusory plug 70 thereby allow to change places from water-proof connector 1.

It is larger than the large-diameter portion 73 of plug body 71 that discoid locking head 75 is set as diameter.Lock head 75, when illusory plug 70 is mounted to water-proof connector 1, be limited to shell 50 by the locking surface 76 that will be located at the lower surface that locks head 75, be pressed into necessarily illusory plug 70 thereby limited to surpass.

At illusory plug 70, be formed with fluting (or slit) 77.The axial formation of fluting 77 from the top that locks head 75 to the assigned position of large-diameter portion 73 along illusory plug 70.By fluting 77 is set, thus can make clip fluting 77 large-diameter portion 73 and lock head 75 radially about part (the 1st L1 of beam section, the 2nd L2 of beam section) work as cantilever beam.That is, if apply power along the direction of the arrow F of Fig. 2 (a), then the 1st L1 of beam section, the 2nd L2 of beam section are respectively independently towards radially inboard or centre deflection.Like this, illusory plug 70 possesses the feature on such formation: from locking head 75 to assigned position, possess the part that makes reduced by carrying out elastic displacement.In addition, fluting 77 the degree of depth (distance from the top that locks head 75) is being set under such prerequisite: as the 1st L1 of beam section, the 2nd L2 of beam section to greatest extent during deflection, this deflection does not involve the part of being close to of Wire seal 60 and illusory plug 70.

So, by illusory plug 70 is mounted to water-proof connector 1, thus the closed hole 61 of the sealing Wire seal 60 corresponding with empty chamber.Illusory plug 70 inserts via the contact patchhole 51 of shell 50.Water-proof connector 1 is corresponding to densification, and the interval of the contact patchhole 51 of shell 50 is straitly set.In addition, to hold the interval of cavity 11 also be same to the contact of the interval of the closed hole 61 of Wire seal 60, inner casing 10.

Therefore, if illusory plug 70 is inserted the contact patchhole 51 of the adjacency of shells 50, then because the diameter of the locking head 75 of illusory plug 70 is set to greatlyr than this interval, thereby such as Fig. 1 (a), Fig. 3, shown in Figure 4, locking head 75 interferes with each other.Therefore, although a side's of adjacency (among the figure, the right side) illusory plug 70a can be inserted into assigned position, the opposing party is (among the figure, the left side) climb to the locking head 75a of illusory plug 70a on the locking head 75b of illusory plug 70b, further insertion is prevented from.

Yet, owing to be formed with fluting 77 at illusory plug 70, thereby can further be pressed into illusory plug 70b.So, as shown in Figure 5, the locking head 75a of illusory plug 70a and the locking head 75b of illusory plug 70b contact, along radially mutually pushing, the 2nd L2 of beam section that locks the 1st L1 of beam section of head 75a and lock head 75b is towards radially inboard deflection, thus, avoided locking the interference of head 75a and locking head 75b.Like this, water-proof connector 1 can both be inserted into assigned position with illusory plug 70a, illusory plug 70b.

And, although the 1st L1 of beam section of illusory plug 70, the 2nd L2 of beam section are as a whole and deflection locks head 75 and self do not carry out elastic displacement.So, because locking surface 76 has been kept the area that locks with shell 50, thereby be pressed into necessarily illusory plug 70 by setting rightly the area of locking surface 76, also being no more than.

In addition, certainly set the width of fluting 77 in the mode that can avoid locking head 75a and locking the interference of head 75b.

In addition, in the present embodiment, in the degree of depth of setting fluting 77 under such prerequisite: as the 1st L1 of beam section, the 2nd L2 of beam section to greatest extent during deflection, this deflection does not involve the part of being close to of Wire seal 60 and illusory plug 70.So, in the part of being close to of Wire seal 60 and illusory plug 70, because illusory plug 70 is not subjected to the impact of deflection, thereby by illusory plug 70 is mounted to water-proof connector 1, thereby do not damage water proofing property.

Fluting 77, suitably to set according to the specification of the water-proof connector 1 of installing, its degree of depth should be set for, and illusory plug 70 is being mounted under the state of assigned position, and 77 the bottom of slotting does not at least arrive the part of being close to of Wire seal 60 and illusory plug 70.As present embodiment, under Wire seal 60 is disposed at situation between inner casing 10 and the shell 50, if 77 the degree of depth of slotting rests in the scope of shell 50, so, do not damage the water proofing property that this is close to part.As present embodiment, if 77 the degree of depth of will slotting be set as shell 50 fore-and-aft direction size about 1/2, so, this water proofing property of being close to part does not have problems.

Illusory plug 70 is provided with around large-diameter portion 73 and is pressed into projection 74.So, even the 1st L1 of beam section or the 2nd L2 of beam section deflection are pressed the wall of the zoning contact patchhole 51 of shell 50, so that illusory plug 70 can easily not come off from water-proof connector 1 yet by being pressed into projection 74.

More than, for by carrying out the reduced that elastic displacement makes illusory plug 70 from locking head 75 to assigned position, form the fluting 77 that plan view is yi word pattern.But in order to make the reduced of illusory plug 70 by carrying out elastic displacement, the utility model can adopt other means.Shown an example (component part to identical with Fig. 2 (a) marks identical symbol) among Fig. 2 (b).This illusory plug 80 is formed with plan view and is cross fluting 87.By cross fluting 87 is set, illusory plug 80 possesses 4 of the 1st L1 of beam section～the 4th L4 of beam section independently beam sections.In this case, the 1st L1 of beam section～the 4th L4 of beam section is along circumferentially being divided into 4, even interfere with each other in abutting connection with 1 beam section of the illusory plug 80 that inserts, other 3 beam sections do not interfere yet.So illusory plug 80 owing to can make the circumferential scope stenosis of carrying out elastic displacement narrow, thereby makes the original function of the locking that locks head more stable and obtain.

The utility model also can adopt the means beyond the fluting 77,87.For example, space cylindraceous (otch) can be set, moreover also can fluting be set in its part.In a word, if can be by carrying out the reduced that elastic displacement makes illusory plug 70 from locking head 75 to assigned position, so the utility model no matter the concrete mode of otch how.

In addition, the water-proof connector that illusory plug of the present utility model is installed is not limited to mode described above, but can be widely applicable for the water-proof connector that possesses Wire seal.As this Wire seal, except the blanket water proof type seal (family expenses seal) that shows in the above-described embodiment, also can be applicable to possess the water-proof connector with the corresponding and divided Wire seal of each circuit.

In addition, only otherwise break away from main idea of the present utility model, just can accept or reject the formation that selection is enumerated in the above-described embodiment, and suitably change to other formation.

Claims

1. illusory plug is characterized in that possessing:

The plug body inserts the closed hole of Wire seal corresponding to the cavity that becomes the sky chamber with not inserting contact; And

Lock head, link to each other with described plug body, be formed at the rear end of the direction of insertion of described illusory plug,

Described illusory plug constitutes, and the assigned position of the described direction of insertion from described locking head to described plug body forms otch, and thus, described locking head and described plug body can be from described locking heads to described assigned position along radially carrying out elastic displacement.

2. illusory plug is characterized in that possessing:

Described illusory plug constitutes, the assigned position of the described direction of insertion from described locking head to described plug body forms along axial fluting, thus, described locking head and described plug body can be from described locking heads to described assigned position along radially carrying out elastic displacement.

3. illusory plug is characterized in that possessing:

Described illusory plug constitutes, the assigned position of the described direction of insertion from described locking head to described plug body makes along axial fluting and forms across, thus, described locking head and described plug body can be from described locking heads to described assigned position along radially carrying out elastic displacement.

4. water-proof connector is characterized in that possessing:

Connector shell has a plurality of contact patchholes;

Wire seal is contained in described connector shell, has a plurality of closed holes that form in the position corresponding with described contact patchhole; And

Illusory plug inserts described closed hole corresponding to described contact patchhole that becomes the sky chamber with not inserting described contact,

Wherein, described illusory plug is each described illusory plug in 3 according to claim 1.