CN202997173U

CN202997173U - Electrical connector with drainage function

Info

Publication number: CN202997173U
Application number: CN 201220694225
Authority: CN
Inventors: 张家齐; 郑益信
Original assignee: HU LANE ASSOCIATE Inc
Current assignee: HU LANE ASSOCIATE Inc
Priority date: 2012-12-14
Filing date: 2012-12-14
Publication date: 2013-06-12
Anticipated expiration: 2022-12-14

Abstract

Disclosed is an electrical connector with drainage function. The electrical connector is composed of a housing, a sealing element and an end cover. The radial circumferences of a joint part and a skirt part of the housing and the position of a circumferential inner flange arranged on the inner wall of the bottom of an accommodating space of the skirt part in a protruding manner are axially provided with one or more drainage grooves communicated with the accommodating space; the sealing piece is sheathed in the circumferential inner flange of the accommodating space; the end cover is sheathed and locked in the accommodating space to make the circumferential outer wall of the sealing piece protrude outward, deformed and clung to the inner wall of the circumferential inner flange; and one or more water guide grooves are axially opened at the periphery of the end cover to make the water guide grooves and the drainage grooves form a drainage channel.

Description

The electric connector of tool drain function

Technical field

The utility model is relevant a kind of electric connector, especially refers to a kind of electric connector of tool drain function.

Background technology

Finding is arranged in electric equipment products by electric connector, and its main application is the conduction of power supply or signal more, and therefore, electric connector has been widely used for the connection of information products, and is indispensable member.

In fact, the utilization of electric connector not only is aforesaid electric equipment products, and it also is widely used in the Circuits System of vapour, locomotive, with the connection as circuit.Because vapour, locomotive must travel under various weathers, so that have unavoidably foreign matter in car body, for example liquid and dust enters.Therefore, if electric connector without the setting of seal, aforementioned foreign matter can enter electric connector inside, and it can't normally be operated.

The electric connector that namely uses with vapour, locomotive is as example, for forming sealing effectiveness, this electric connector is to be provided with a seal between housing and sheathed end cap, seal periphery projects at least one peripheral flange, this peripheral flange is configured to engage hermetically with the housing inner circumferential wall, make the foreign matters such as liquid and dust unlikely by the seal, and enter in electric connector.Wherein, the seal is axially offered a plurality of jacks that run through, and has the ring-type inboard lip in each jack, in order to the wire by jack is formed independent sealing.The peripheral flange of the seal and housing inner circumferential wall form circumferential seal, that is after this peripheral flange pushed by inner walls, make the jack distortion, and make circumferential seal and sealing separately influence each other, and unfavorablely form best sealing effectiveness.

Before address, because vapour, locomotive are raining or the weather that snows is descending sails, the meeting that rainwater or snow-broth are difficult to avoid enters in car body, even in the carwash process, liquid is easily in the long-pending perforation that invests this end cap and the corresponding setting of jack of seal, in carwash or driving process, because touching or rock wire, make the inboard lip in wire squeezes seal jack, and make liquid pass through this perforation and jack along wire, and easily causing the corrosion of male and female terminal, severe patient even causes the short circuit of Circuits System, and demands relevant dealer's improvement urgently.

The utility model content

The utility model purpose is to provide a kind of electric connector of tool drain function, to be provided with at least one drainage channel between end cap, seal and housing, this drainage channel can allow liquid discharge rapidly outside electric connector, with avoid liquid along wire the perforation by this end cap and the jack of seal, thereby overcome the problem of the easy corrosion of male and female terminal or Circuits System short circuit.

For achieving the above object, the electric connector of the tool drain function that the utility model provides, it comprises:

One housing, its upper and lower section has respectively a skirt section and a junction surface, this skirt section open top forms an accommodation space, this junction surface axially offer one or more than be communicated in accommodation space and for terminal accommodating with the location terminal groove, and each terminal has the extension of wire, and wherein the circumferential inward flange position axis that projects of the radially side face in this junction surface and this skirt section and this accommodation space bottom interior wall is to offering one or rhone above and that this accommodation space connects;

One seal, it is sheathed in the circumferential inward flange of this accommodation space, and or the above jack that passes through for wire offered in corresponding each terminal groove of seal position; And

One end cap, it is sheathed and be locked in this accommodation space, makes the outwards outstanding distortion of seal peripheral outer wall, and is close to this circumferential inward flange inwall; Wherein, or the above perforation that passes for this wire offered in corresponding each jack of this end cap end face, terminal groove position, and this end cap periphery axially offers one or above perforation guiding gutter, makes this guiding gutter and this rhone formation one drainage channel.

The electric connector of described tool drain function wherein has one or above annular inboard lip in each jack, and then defines at least one deformable narrow in jack.

The electric connector of described tool drain function wherein is provided with a locking mechanism between the accommodation space of this housing and this end cap, and this locking mechanism is to offer catching groove at the accommodation space outer wall of this housing, and corresponding each catching groove of this end cap position is provided with the clasp thing; In this clasp is snapped in this catching groove, namely form lock-out state.

The electric connector of described tool drain function, wherein each outer wall with clasp of this end cap extends upward a fin.

Via enforcement of the present utility model, its effect that gains is:

By the guiding gutter of this end cap and housing and offering of rhone, make liquid be able to discharge rapidly via this guiding gutter and the formed drainage channel of rhone, this measure, can avoid liquid to pass through the perforation of this end cap and the jack of seal along wire, and overcome the problem of the easy corrosion of male and female terminal or Circuits System short circuit.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model electric connector.

Fig. 2 is the three-dimensional exploded view at another visual angle of the utility model electric connector.

Fig. 3 is the stereogram after the utility model electric connector assembling.

Fig. 4 is the stereogram of the utility model electric connector partly cut-away.

Embodiment

The technological means that the utility model is taked is to provide a kind of electric connector of tool drain function, and it comprises:

For further disclosing concrete technology contents of the present utility model, at first see also accompanying drawing, wherein:

Fig. 1 is the three-dimensional exploded view of the utility model electric connector, and Fig. 2 is the three-dimensional exploded view at another visual angle of the utility model electric connector, and Fig. 3 is the stereogram after the utility model electric connector assembling, and Fig. 4 is the stereogram of the utility model electric connector partly cut-away.

As shown in Figures 1 to 4, basically, electric connector of the present utility model is by housing 1, one seal 2, and an end cap 3 forms.

Wherein, housing 1 is by insulating material, and for example plastics are made, its hypomere has a

junction surface

11,11 top one size for connection larger skirt sections 12, this junction surface, these 12 inside, skirt section are provided with an accommodation space 121 so that for after chat the accommodating of seal 2 and end cap 3 and locking.These junction surface 11 use are for the docking of complementary electrical connector, therefore, a plurality of terminal grooves 13 that are communicated in accommodation space 121 are axially offered at this junction surface 11, are for terminal (known technology, not shown in the figures) behind accommodating and location, and the wire of each terminal is passed by the seal 2 and end cap 3.

For avoid end cap 3 by the skirt section 12 end face opening shaft of housing 1 to deviating from, therefore be provided with a locking mechanism between the two, for example the relative wall in 12 liang, skirt section is offered at least one pair of catching

groove

14,3 liang of relative outer walls of end cap project the clasp 32 at least one pair of tool inclined-plane.When button hook 32 is snapped in catching groove 14, namely form locking relation as shown in Figure 3, only this is all known technology, does not intend giving unnecessary details at this.

This housing 1 technical characterictic is, the radially side face in this junction surface 11 and this skirt section 12 and circumferential inward flange 15 position axis that this accommodation space 121 bottom interior wall project are to offering one or rhone 16 above and that accommodation space 121 connects, as shown in Figure 1, 2, this rectangle radial perimeter is offered two pairs of rhones 16 relatively, and 15 of this accommodation space 121 circumferential inward flanges in bottom are inserted in for the seal 2.

Seal 2 is made with elastomeric material, and its appearance is corresponding to the cross section appearance of the 121 circumferential inward flanges 15 in bottom between this accommodating appearance, for example rectangle.The seal 2 is sheathed in this circumferential inward flange 15, due to the height of the seal 2 greater than the circumferential height of inward flange 15, so the liquid of the seal 2 end faces is directly discharged outside housing 1 by those rhones 16, after perhaps the liquid of the seal 2 end faces flows to circumferential inward flange 15 indirectly, then flow to those rhones 16 side by side for outside housing 1 along circumferential inward flange 15.

The jack 21 of perforation is offered in corresponding each terminal groove of the seal 2 13 positions, and the annular inboard lip 22 (being shown in Fig. 4) that has at least one pair of axially spaced-apart in each jack 21, therefore, the existence of each jack 22 internal cause inboard lip 22, and define at least one deformable narrow.So, during use, each inboard lip 22 and the wire sealed engagement of passing through jack 21, thus seal separately in the inside of aforesaid narrow formation wire.

End cap 3 is by insulating material, and for example plastics are made, and a plurality of perforation 31 are offered in the corresponding jack 21 of its end face and terminal groove 13 positions, and those perforation 31 pass for wires of terminals.In addition, each catching groove 14 positions in the corresponding skirt section 12 of this end cap 3 outer walls project a clasp 32; Therefore, as shown in Figure 3, when end cap 3 was inserted in accommodation space 121, those clasps 32 were snapped in catching groove 14, with formation lock-out state as shown in Figure 3, and made this end cap 3 push the seal 2, and formed circumferential sealing.

In addition, each outer wall with clasp 32 of this end cap 3 further extends upward a fin 33.As shown in Figures 1 and 2, the forward and backward outer wall of this end cap 3 with clasp 32 extends upward a pair of fin 22 relatively; When pressing this to fin 33, can make clasp 32 and catching groove 14 break away from, and then form release.

The technical characterictic of this end cap 3 is, its periphery is axially offered one or above perforation guiding gutter 34, and as shown in Figures 1 and 2, these end cap 3 long limit peripheries are offered two pairs of guiding gutters 34 relatively, make this guiding gutter 34 and rhone 16 form drainage channels.

During this electric connector assembling, see also Fig. 1 and Fig. 3, at first seal 2 is inserted in the circumferential inward flange 15 of accommodation space 121 bottoms.Then, end cap 3 is inserted in accommodation space 121, clasp 32 is snapped in catching groove 14, and seal 2 is subject to the application of force effect of end cap 3, push and outer mutant form and form, thereby make the seal 2 outer walls be close to circumferential inward flange 15 inwalls, and then form the circumferential seal effect.

See also Fig. 4, as shown by arrows, when liquid is entered by guiding gutter 34, and by the seal 2 and accommodation space 121 15 formed gaps of circumferential inward flange, bottom, by rhone 16, liquid is discharged outside housing 1 at last.

The utility model discloses, and is a kind of of preferred embodiment, such as local change or modification and come from technological thought of the present utility model and be have the knack of this technology personnel were easy to know by inference, all do not take off claim category of the present utility model.

Claims

1. the electric connector of a tool drain function, is characterized in that, comprising:

2. have according to claim 1 an electric connector of drain function, it is characterized in that wherein having one or above annular inboard lip in each jack, and then define at least one deformable narrow in jack.

3. have according to claim 1 an electric connector of drain function, it is characterized in that, wherein be provided with a locking mechanism between the accommodation space of this housing and this end cap, this locking mechanism is to offer catching groove at the accommodation space outer wall of this housing, and corresponding each catching groove of this end cap position is provided with the clasp thing; In this clasp is snapped in this catching groove, namely form lock-out state.

4. have according to claim 3 an electric connector of drain function, it is characterized in that, wherein each outer wall with clasp of this end cap extends upward a fin.