CN2405350Y

CN2405350Y - Improved DC socket

Info

Publication number: CN2405350Y
Application number: CN99249016U
Authority: CN
Inventors: 张永昌
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-10-26
Filing date: 1999-10-26
Publication date: 2000-11-08
Anticipated expiration: 2009-10-26

Abstract

The utility model a DC socket. An inserting part and a welding part are respectively formed on the front end and the back end of a terminal, an external pipe is sheathed at the external part of the terminal, ab external pipe is sheathed at the external part of the terminal, an insulator takes shape between the terminal and the external pipe, an elastic sheet is a circular arc-shaped sheet body and is sheathed between the terminal and the external pipe, and a convex handle is extended on the back end of the elastic sheet. So, the positioning is steady and reliable, the material consumption is reduced and welding points are not easy to fall off.

Description

The DC socket of improvement

The utility model relates to a kind of DC socket.

At present, as shown in Figure 1, 2, known DC socket is made up of terminal 1a, outer tube 2a, insulator 3a and shell fragment 4a, this terminal 1a is fixed on outer tube 2a inside by an insulator 3a, make terminal 1a and outer tube 2a become the state that two utmost points are separated, and the rear end of use as a pretext sub-1a and outer tube 2a, be welded with lead respectively, can reach the function of signal transmission, be provided with a shell fragment 4a in addition in the inside of outer tube 2a, this shell fragment 4a is with the ability of its resilient clamp, the plug that inserts fixed, and can be made two utmost point conductings between termination and terminal 1a and outer tube 2a through shell fragment 4a.

The shell fragment 4a of this known DC socket is connected to outer tube 2a inside by elasticity tension, there is no distinctive positioner, cause the situation of outer tube 2a and shell fragment 4a loose contact easily, moreover, terminal 1a is with the chimeric outer tube 2a inside that is fixed on of an insulator 3a, terminal 1a when combination in the outer tube 2a easily causes off-centre, make plug be difficult to smooth insertion, and the accurate positioning clamping of insulator 3a and outer tube 2a, easily forming the situation of position deviation, in addition, is the hollow cylinder of a smooth-shaped as outer tube 2a, comparatively difficult when desiring welding lead in outer tube 2a rear end, and lead comes off easily.

In view of this, the DC socket that provides a kind of improvement of the present utility model, it is to borrow the protruding pin on the insulator to cooperate with location on the handle of shell fragment rear end, reach the effect of fixed terminal, increase conductivity, press groove fit on a salient point and the insulator in the outer tube upper punch in addition, make outer tube and insulator firmly must be combined into a rock-steady structure.

The purpose of this utility model is achieved in that a kind of DC socket of improvement, include a terminal, an outer tube, an insulator and a shell fragment, it is characterized in that: the front end of terminal and rear end form a Plug Division and a weld part respectively, outer tube sleeve is located at terminal outer, insulator is formed between terminal and the outer tube, shell fragment is a circular-arc lamellar body, and is set between terminal and the outer tube and the handle of this shell fragment rear end extension one protrusion; The weld part of terminal stretches out in the insulator rear end in described; Described shell fragment is an oriented projecting inward salient point on the lamellar body of quadrant arcuation and this shell fragment; Described handle is provided with a perforation and a location hole, this location hole with the insulator external diameter on be provided with a protruding pin and cooperate; Described outer tube upper punch is pressed with the groove fit on a salient point and this salient point and the insulator.

Because adopt such scheme: positioning stablity is reliable, reduce material consumption, the solder joint difficult drop-off.

Below in conjunction with drawings and Examples the utility model is further specified.

The cutaway view of the known DC plug of Fig. 1.

The exploded view of the known DC plug of Fig. 2.

Fig. 3 three-dimensional combination figure of the present utility model.

Fig. 4 exploded view of the present utility model.

Fig. 5 user mode figure of the present utility model.

Shown in Fig. 3-5, the utility model comprises that a terminal 1, an outer tube 2, an insulator 3 and a shell fragment 4 constitute, and cylinder that this terminal 1 is made by, electric conducting material and terminal 1 front end and rear end form a Plug Division 11 and a weld part 12 respectively.

Outer tube 2 is a hollow round tube body, is set in terminal 1 outside, and outer tube 2 also keeps certain spacing with terminal 1, borrows to form the state that two utmost points are separated.

Insulator 3 is made with insulating material such as plastic cement, is formed between terminal 1 and the outer tube 2, and this insulator 3 can make terminal 1 be able to strong fix, and two utmost points can be reached the effect of insulation, and the weld part 12 of terminal 1 stretches out in insulator 3 rear ends.

Shell fragment 4 is set between terminal 1 and the outer tube 2, wherein shell fragment 4 is the lamellar body of quadrant arcuation and the handle 41 that a protrusion is extended in this shell fragment 4 rear ends, this handle 41 is provided with a perforation 42 and one location hole 43, and oriented projecting inward salient point on this shell fragment 4, this salient point 44 can be when plug inserts, outer tube 2 can must be contacted really, to reach the good effect of conductivity with plug.

When plug is plugged on socket, can contact conducting with the Plug Division 11 and the outer tube 2 of terminal 1 respectively, to reach the effect of transmission.

Outer tube 2 upper punches of the present utility model are pressed with a salient point 21, borrow cooperating of tongue 31 on salient point 21 and the insulator 3, make outer tube 2 and insulator 2 can be firm must in conjunction with, become a stable structure, moreover, having a protruding pin 32 outside the insulator 3, can cooperate the location hole on the groove 41 43 with shell fragment 4 rear ends, to reach the effect of fixed terminal 1, make terminal 1 unlikely loosening and can make conductivity better.

Shell fragment 4 has four fens these circular-arc lamellar bodies, when plug is inserted in socket, admittedly the resistance of pegging graft reduces, makes the grafting action more easy, convenient, and the loose contact rate can be reduced; In addition, become quadrant arcuation lamellar body, can reduce the consumption of material, reduce production costs because of simplifying shell fragment 4.

Handle 41 is provided with a perforation 42 and lead can be passed perforation and 42 be welded on the handle 41, does not need the smooth surface of wire bonds at outer tube 2, improves to be welded into power, increases property firm in structure, makes the lead difficult drop-off.

In sum, the member location that the utility model has been eliminated known DC socket is difficult for, and consumption of materials is big, solder joint problem such as easily come off.

Claims

1, a kind of DC socket of improvement, include a terminal, an outer tube, an insulator and a shell fragment, it is characterized in that: the front end of terminal and rear end form a Plug Division and a weld part respectively, outer tube sleeve is located at terminal outer, insulator is formed between terminal and the outer tube, shell fragment is a circular-arc lamellar body, and is set between terminal and the outer tube and the handle of this shell fragment rear end extension one protrusion.

2, by the DC socket of the described a kind of improvement of claim 1, it is characterized in that: the weld part of terminal stretches out in the insulator rear end in described.

3, by the DC socket of the described a kind of improvement of claim 1, it is characterized in that: described shell fragment is an oriented projecting inward salient point on the lamellar body of quadrant arcuation and this shell fragment.

4, by the DC socket of the described a kind of improvement of claim 1, it is characterized in that: described handle is provided with a perforation and a location hole, this location hole with the insulator external diameter on be provided with a protruding pin and cooperate.

5, by the DC socket of the described a kind of improvement of claim 1, it is characterized in that: described outer tube upper punch is pressed with the groove fit on a salient point and this salient point and the insulator.