CN201008027Y

CN201008027Y - Spring plate compression joint type contact pin structure

Info

Publication number: CN201008027Y
Application number: CNU2007201392015U
Authority: CN
Inventors: 吴清海
Original assignee: Xiamen Delixing Electric Equipment Co Ltd
Current assignee: Xiamen Delixing Electric Equipment Co Ltd
Priority date: 2007-02-06
Filing date: 2007-02-06
Publication date: 2008-01-16
Anticipated expiration: 2017-02-06

Abstract

The utility model relates to a shrapnel pressing type contact pin structure, which is employed in electric circuit connection and comprises a punch block 2, a pressing shrapnel 3 and a plurality of contact pins 1, wherein the pressing shrapnel 3 is made of a long tube shaped stainless steel shrapnel being bended into ring shape and is provided with bar shaped holes 31 and projections 32, the bar shaped holes 31 are sleeved on the punch block 2. When installing the wire, a screwdriver 5 is plugged in the punch block 2 and the wire 6 is plugged in the bar shaped holes 31, then one should extract out the screwdriver 7 to clip the wire 8 firmly on the punch block 2. The utility model is simple in structure, convenient in operation and firm in connection, which is suitable for being employed in vibrating environment.

Description

A kind of shell fragment compression joint type contact pin structure

Technical field

The utility model relates to a kind of contact pin structure of electrical cnnector, particularly a kind of structure of compression joint type contact pin.

Background technology

The electric wiring connector of present various plug-in types, generally form by box body and contact pin, input, output electric wire are connected with contact pin by modes such as welding, screw crimping or terminal grafting, contact pin generally is divided into male plug pin and female plug pin, has solid bar-shaped contact pin on the male plug pin, have the cylindrical shape contact pin or the slot that match with the male plug pin on the female plug pin, after male plug pin and female plug pin are pegged graft mutually, can make the line conduction that is connected on two connectors.Mainly there is following deficiency in existing contact pin structure:

1, because electric wire is connected with contact pin by modes such as welding, screw crimping or terminal grafting, be not easy to installation, time-consumingly take a lot of work and connect insecurely, particularly in the environment of vibration is arranged, wiring place is easy to generate as rosin joint, sealing-off, fault such as become flexible, go offline.

2, contact pin is integrated, needs the customized special-shaped copper bar material of first die sinking, and section is then carried out various cut again and is shaped, and the process-cycle is long, and cost is higher.

The utility model content

It is a kind of simple in structure, easy for installation that the utility model provides, the contact pin structure of the connector that is connected firmly.

The utility model adopts following technical scheme:

A kind of shell fragment compression joint type contact pin structure, form by punch block, the crimping shell fragment and the contact pin that are fixedly arranged on the punch block, described crimping shell fragment is formed by strip shell fragment looped-shaped bending, have a stiff end and a movable end, this stiff end is fixedly arranged on the punch block and its end is provided with a fixture block, movable end is provided with a bar hole, and described fixture block is inserted in this bar hole.

Aforesaid contact pin can be solid by engage thread, engaging, riveted joint or other known method are fixed in the punch block bottom, and preferred fixed form is riveted joint.

A kind of preferable punch block structure roughly takes the shape of the letter U, the one end is provided with the L-shaped projection that curves inwardly, aforesaid bar hole is placed on this projection and described fixture block end holds out against in the inner edge of " L " of this projection shape bend, thereby the crimping shell fragment is fixed on the punch block.

Described contact pin is divided into and is male plug pin and female plug pin, the male plug pin is solid bar-shaped, the female plug pin is cylindrical, for ease of pegging graft, the internal diameter of the opening of female plug pin is greater than the internal diameter of inner chamber, for making grafting more firm, be convexly equipped with some ribs that extend along its axial direction on the inwall of female plug pin, rib is generally established 6.When male plug pin and female plug cushion are connected together, can realize the circuit UNICOM that is attached thereto.

Because contact pin structure of the present utility model adopts split-type structural, but each parts separate machined, wherein punch block can form with the cold stamping of brass sheet material, the male and female contact pin form by common copper rod cut and by riveted and fixed on punch block, the crimping shell fragment is processed by stainless steel substrates, be placed on the punch block, have easy to process, the easy advantage of assembling.

When electric wire is installed, as shown in Figure 5, only need to insert in the punch block with screwdriver, the annulus of extruding crimping shell fragment, the free end of crimping shell fragment outwards moves, thereby makes bar hole be right against electric wire, insert electric wire in the bar hole and extract screwdriver, under the effect of crimping shell fragment self elastic force, the free end of crimping shell fragment inwardly moves, thereby electric wire tightly is clipped on crimping shell fragment and the punch block.Compared with prior art, not only easy to connect quick, saved setting up time greatly, can save for 75% time than screw connected mode, and be connected firmly, especially be fit to be applied in the environment of vibration.

Description of drawings

Fig. 1 is the front view of embodiment one.

Fig. 2 is the left view of embodiment one.

Fig. 3 is the profile of embodiment one.

Fig. 4 is the profile of embodiment two.

Fig. 5 is a mode of connection schematic diagram.

Fig. 6 is the expanded view of crimping shell fragment.

Embodiment

Describe embodiment of the present utility model with reference to the accompanying drawings in detail.

Embodiment one

As shown in Figure 1, be the male plug needle construction, be made up of punch block 2, crimping shell fragment 3 and male plug pin 1 that wherein punch block 2 usefulness brass sheet material cold punchings form, male plug pin 1 forms and is riveted on the punch block 2 by the copper rod cut, and crimping shell fragment 3 is made by stainless steel substrates.Punch block 2 is provided with aduncate projection 21, stiff end on the crimping shell fragment 3 is provided with fixture block 32, movable end is provided with bar hole 31, fixture block 31 is inserted in bar hole 32 and the end holds out against in the inner edge of projection 21 bends, bar hole 31 is placed in the root of projection 21, because the elastic force effect of crimping shell fragment 3 self can be fixed on crimping shell fragment 3 on the punch block.

Embodiment two

As shown in Figure 4, be the female plug needle construction, structure and embodiment one are roughly the same, and difference is that plug connector is made up of punch block 2, crimping shell fragment 3 and female plug pin 4, and female plug pin 4 is cylindrical and can match with male plug pin 1, are convexly equipped with 6 ribs 41 on its inwall.

Male plug pin and female plug pin are formed a set of connections plug-in module, and male plug pin 1 is inserted in the hole of female plug pin 4, make male plug pin and female plug needle guide logical.The installation of electric wire 6 as shown in Figure 5, screwdriver 5 is inserted in the punch block 2, bar hole 31 is moved to the left, electric wire 8 is stretched in the bar hole 31, extract screwdriver 5, under the elastic force effect of crimping shell fragment 3 self, bar hole 31 moves right, and electric wire 6 tightly is clipped on crimping shell fragment 3 and the punch block 2, promptly finishes installation, operate very simply, and be connected firmly.

Above-mentioned is embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all belongs to the behavior of invading the utility model protection range.

Claims

1. shell fragment compression joint type contact pin structure, it is characterized in that: form by punch block, the crimping shell fragment and the contact pin that are fixedly arranged on the punch block, described crimping shell fragment is formed by strip shell fragment looped-shaped bending, have a stiff end and a movable end, this stiff end is fixedly arranged on the punch block and its end is provided with a fixture block, movable end is provided with a bar hole, and described fixture block is inserted in this bar hole.

2. according to the described a kind of shell fragment compression joint type contact pin structure of claim 1, it is characterized in that: described punch block roughly takes the shape of the letter U, the one end is provided with the L-shaped projection that curves inwardly, and described bar hole is placed on this projection and described fixture block end holds out against in the inner edge of " L " of this projection shape bend.

3. according to the described a kind of shell fragment compression joint type contact pin structure of claim 1, it is characterized in that: described contact pin end is riveted on the punch block bottom.

4. according to the described a kind of shell fragment compression joint type contact pin structure of claim 1, it is characterized in that: described contact pin is solid bar-shaped.

5. according to the described a kind of shell fragment compression joint type contact pin structure of claim 1, it is characterized in that: described contact pin is a cylindrical shape, and the internal diameter of its opening is greater than the internal diameter of inner chamber.

6. according to the described a kind of shell fragment compression joint type contact pin structure of claim 5, it is characterized in that: be convexly equipped with some ribs that extend along its axial direction on the inwall of described contact pin.