CN101202390A

CN101202390A - Pins on power source plug

Info

Publication number: CN101202390A
Application number: CNA2007101566115A
Authority: CN
Inventors: 陈毅
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-31
Filing date: 2007-10-31
Publication date: 2008-06-18

Abstract

The invention relates to a pin of an attaching plug, comprising a head (1) with conductive metal material and a tail (2). The head (1) is hollow; furthermore, the tail (2) is provided with an injection hole (22) which is communicated with a hollow part (11) of the head (1); the hollow part (11) of the head (1) is fully filled with an internal core (3) of nonmetal material through the injection hole (22). Compared with the prior art, by designing the head of the conductive metal material into the hollow structure and injecting the hollow part into the internal core of the nonmetal material through the injection hole, the invention can greatly reduce the dosing of the conductive metal material, and can directly reduce the production cost of the pin; furthermore, the structure that the exterior of the metal material of the head of the pin is combined with the internal core of the nonmetal material keeps good rigidity of the head of the pin and keeps the integrative strength of the pin, and avoids the bent deformation of the head of the pin in the application process; furthermore, the service life is longer.

Description

Pin on a kind of attaching plug

Technical field

The present invention relates to the technical field of attaching plug, relate in particular to the pin on a kind of attaching plug.

Background technology

At present, pin on the attaching plug roughly is divided into these three kinds of the flat pins of domestic standard, European standard round pin, English standard side pin, be to adopt conducting metal section bars such as copper or other alloys mostly, be made through manufacturing procedures such as cutting, boring, tapping, chamferings.The pin entire body adopts the conducting metal material, it comprises the head 1 ' and the afterbody 2 ' that is used for being connected as a single entity with the attaching plug body that is used for being inserted into receptacle sockets, as shown in Figure 1, and wherein, the head 1 ' of pin is a solid, is used for the current-carrying part of electric-connected socket.Because the conducting metal price is comparatively expensive, if the pin entire body all is solid, can make that the production cost of pin is higher, especially for European standard round pin; If but pin simply is processed into the structure of hollow, and its integral rigidity does not reach requirement again, when reality is used, need frequently be inserted into the pin header in the socket, flexural deformation easily, even the head that fractures, and influence is normal practical.

Summary of the invention

Technical problem underlying to be solved by this invention is the present situation at prior art, provides a kind of and can reduce the production cost of pin, can guarantee pin on the attaching plug of pin bulk strength again.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: the pin on this attaching plug, include the head and the afterbody of conducting metal material, it is characterized in that: described at least head is a hollow, and, on described afterbody, offer the injecting hole that is communicated with described head hollow space, and be full of the inner core that non-metallic material is arranged by this injecting hole in the hollow space of head.

For ease of when the header body injection mo(u)lding, make connecting as one that pin tails and header body can be more firm, can be provided with a circle groove on the afterbody of described pin, like this, the sidewall of the pin at groove place is thinner, for ease of offering of injecting hole, as a further improvement on the present invention, described injecting hole with on the sidewall that is opened in this groove for good.

Compared with prior art, the invention has the advantages that: become hollow structure by head design with conducting metal material in the pin, and the inner core of non-metallic material is advanced in injection moulding by the injecting hole on the pin tails in the hollow space, can reduce the use amount of conducting metal material significantly, just can directly reduce the production cost of pin, and the inner core structure combining of the outside of pin header metal material and non-metallic material, make the rigidity of pin header still keep better, still can guarantee the bulk strength of pin, avoid pin header diastrophic phenomenon in use to occur, guarantee and good being electrically connected of supply socket, and useful life is longer; Of the present invention simple in structure, effective, go for the flat pin of domestic standard, European standard round pin and English standard side pin.

Description of drawings

Fig. 1 is the cutaway view of pin in the prior art;

The structural representation of Fig. 2 embodiment of the invention;

Fig. 3 is the cutaway view (having removed the inner core of non-metallic material) of Fig. 1;

Fig. 4 is the cutaway view of Fig. 1;

Fig. 5 is applied in structural representation on the attaching plug for the embodiment of the invention.

Embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

To shown in Figure 5, the pin on this attaching plug is an European standard round pin, includes the head 1 and the afterbody 2 of conducting metal material as Fig. 2;

Wherein, described head 1 is the jack that is used for being inserted into supply socket, and described afterbody 2 is provided with a circle groove 21, is used for being connected as a single entity with attaching plug body 4, referring to Fig. 2;

The pin body entire body of this conducting metal material is a hollow, be that head 1 and afterbody 2 all are hollow, referring to Fig. 3, and, on the sidewall of described afterbody 2 grooves 21, offer the injecting hole 22 that is communicated with described head 1 hollow space 11, and be full of the inner core 3 that non-metallic material is arranged by this injecting hole 22 in the hollow space 11 of head 1, referring to Fig. 2, Fig. 3 and Fig. 4.

Add man-hour in that attaching plug is actual, earlier by production standard, adopt conducting metal to process the pin body of entire body hollow, by the injecting hole 22 of pin tails 2, in the hollow space 11 of pin header 1, inject nonmetallic materials then, form inner core 3, at last, the plastic body 4 of one injection moulding attaching plug around that circle groove 21 of this pin tails 2, also the plastic body 4 of injection moulding attaching plug several times forms the attaching plug finished product that has pin.

Claims

1. the pin on the attaching plug, include the head (1) and the afterbody (2) of conducting metal material, it is characterized in that: described at least head (1) is a hollow, and, on described afterbody (2), offer the injecting hole (22) that is communicated with described head (1) hollow space (11), and be full of the inner core (3) that non-metallic material is arranged by this injecting hole (22) in the hollow space (11) of head (1).

2. the pin on the attaching plug according to claim 1 is characterized in that: described afterbody (2) is provided with a circle groove (21), and described injecting hole (22) is opened on the sidewall of this groove (21).