CN201259982Y

CN201259982Y - Anti-reverse plug waterproof connector

Info

Publication number: CN201259982Y
Application number: CNU2008201626101U
Authority: CN
Inventors: 应俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-08-07
Filing date: 2008-08-07
Publication date: 2009-06-17
Anticipated expiration: 2018-08-07

Abstract

Disclosed is a reverse-inserting preventing waterproof connector, which is composed of a socket which has a inserting pin and a plug which has an inserting hole for the inserting pin to insert; wherein, an embedded concave part to be connected with the plug is formed on the shell of the socket; an embedded convex part is correspondingly formed on the shell of the plug; the embedded concave part of the socket has an interference fit with the embedded convex part of the plug; a ring-shaped groove and a ring-shaped lug boss which can be mutually embedded are respectively arranged on the inner circular surface of the embedded concave part and the outer circular surface of the embedded convex part. The connector has perfect waterproof performance; the connection is firm, stable and reliable; and the socket is not easy to have reverse insertion and wrong insertion.

Description

Water-proof connector is inserted in counnter attack

Technical field

The utility model relates to a kind of electric connector, particularly relates to a kind of counnter attack and inserts water-proof connector

Background technology

At present, common connector adopts PA6 usually, and materials such as phenolic resins are as manufactured materials, in use because easily suction, have change in size and insulation property can descend or adopt aviation to insert blow-by design own, moisture-sensitive or water inlet in use influences the use of complete machine.Therefore the application of this connector lacks reliability, fail safe.And Chinese patent 032286686 disclosed a kind of " water-proof connector ", the characteristics of this connector are that the external packing of male connector and female connector is constructed by inner injection mo(u)lding, and interlaminar resin bonds fully, thereby water resistance is more stable, but, make trouble owing to want dual injection moulding.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of novel counnter attack to insert water-proof connector at above-mentioned prior art present situation, and this connector water resistance is splendid, secure and reliable connection and be difficult for anti-inserted wrong plug.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: water-proof connector is inserted in this counnter attack, form by socket that is provided with contact pin and the plug butt joint that is provided with the jack that can insert contact pin, wherein be formed with the chimeric recess that docks with plug on the shell of socket, correspondingly on the shell of described plug, be formed with fitting projection, it is characterized in that being interference fit between the fitting projection of the chimeric recess of described socket and plug, and be respectively equipped with on the outer peripheral face of the inner peripheral surface of chimeric recess and fitting projection can chimeric mutually annular recess and annular projection.

Also can be provided with the spring leaf that is used for clamping contact pin in the jack of described plug, make secure and reliable connection between contact pin and the jack, contact is good, difficult drop-off.

Also be provided with an inserts in described jack housing, contact pin is fixed on this inserts, and is fixed in wherein simultaneously when the shell injection molded.

On the fitting projection of the chimeric recess of described socket and plug, also be formed separately the triangle boss and the triangular shaped recess of the location that can cooperatively interact.

The shell of described plug and socket all adopts the flexible PVC injection molded.

Compared with prior art, advantage of the present utility model is: by the design of interference fit and annular recess and annular projection between chimeric recess and the fitting projection, both are combined closely, water proofing property is guaranteed when making the socket and plug butt joint, even long-time under water, do not intake yet; By the setting of spring leaf, make secure and reliable connection between contact pin and the jack simultaneously, contact is good, difficult drop-off; And contact pin is coated and fixed in the shell by an inserts, can guarantee the contact pin height, and moulding is easier.Simultaneously leg-of-mutton boss location has effectively prevented the possibility that both positive and negative polarity is instead inserted.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment socket.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 is the structural representation of the utility model embodiment plug.

Fig. 4 is that the B of Fig. 3 is to view.

Embodiment

Embodiment is further described the utility model below in conjunction with accompanying drawing.

This connector can be made 2 cores, 3 cores, 4 cores, multi-core connectors such as 5 cores, be example now with 2 cores, specifically in conjunction with Fig. 1-shown in Figure 4, this counnter attack is inserted water-proof connector and is made of phase mutual energy chimeric socket 1 and plug 2, two contact pins 13 are arranged on the socket (1), the back of each contact pin 13 is fixed on the inserts 12, and inserts 12 is embedded in the shell 11 of socket, and shell 11 adopts the flexible PVC material, when shell 11 injection moldeds, inserts 12 is coated and fixed in the shell 11 together with contact pin 13, can guarantees height and the extension elongation of each contact pin 13 in socket like this.And the chimeric recess 14 (as Fig. 1, shown in Figure 3) that can insert for plug 2 fitting projection 24 is arranged on the shell 11, and be provided with annular recess 15 at the inner peripheral surface of chimeric recess 14, can with the annular convex 25 mutual chimeric location on the outer peripheral face of the fitting projection 24 of plug 2.In addition on the chimeric recess 14 of socket 1, be provided with triangle boss 16, the location that cooperatively interacts of the triangular shaped recess 26 on the fitting projection 24 of this triangle boss 16 and plug 2.

As Fig. 3, the shell 21 of plug 2 shown in Figure 4 adopts the flexible PVC material too, 21 have two jacks 23 that can supply contact pin 13 to insert on shell, and be provided with spring leaf 22 in each jack 23, clamp the contact pin 13 that inserts in the jack with this spring leaf 22, to guarantee that both firmly connect, and do not come off.The fitting projection 24 of plug body is an interference fit with the chimeric recess 14 of socket, be formed with the annular recess 15 corresponding annular projections 25 on several and the socket on its outer peripheral face, after the fitting projection 24 of plug is inserted in the chimeric recess 14 of sockets, annular recess 15 and annular projection 25 tablings, form combining closely between the two, reach good waterproof effect.Simultaneously triangle boss 16 matches with triangular shaped recess 26, plays the tailor-made usefulness in location, prevents that anti-slotting or wrong plug is to plug wire polarity.

Claims

1, water-proof connector is inserted in a kind of counnter attack, by the socket that is provided with contact pin (13) (1) and plug (2) butt joint that is provided with the jack (23) that can insert contact pin form, wherein be formed with the chimeric recess (14) that docks with plug on the shell of socket, correspondingly on the shell of plug, be formed with fitting projection (24), it is characterized in that: be interference fit between the chimeric recess (14) of described socket and the fitting projection (24) of plug, and on the outer peripheral face of the inner peripheral surface of chimeric recess and fitting projection, be respectively equipped with can be chimeric mutually annular recess (15) and annular projection (25).

2, water-proof connector is inserted in counnter attack as claimed in claim 1, it is characterized in that: also be provided with the spring leaf (22) that is used for clamping contact pin in the jack (23) of described plug (2).

3, water-proof connector is inserted in counnter attack as claimed in claim 1 or 2, it is characterized in that: in described socket (1) shell (11), also be provided with an inserts (12), contact pin (13) is fixed on this inserts (12), and is fixed in wherein simultaneously when the shell injection molded.

4, water-proof connector is inserted in counnter attack as claimed in claim 1 or 2, it is characterized in that: the triangle boss (16) and the triangular shaped recess (26) that are formed separately the location that can cooperatively interact on the fitting projection (24) of the chimeric recess (14) of described socket (1) and plug (2).

5, water-proof connector is inserted in counnter attack as claimed in claim 1, it is characterized in that: described plug (2) all adopts the flexible PVC injection molded with the shell of socket (1).