CN203367560U

CN203367560U - Novel USB connector

Info

Publication number: CN203367560U
Application number: CN 201320442254
Authority: CN
Inventors: 王金路
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-24
Filing date: 2013-07-24
Publication date: 2013-12-25
Anticipated expiration: 2023-07-24

Abstract

The utility model discloses a novel USB connector, which comprises an insulation body, a metal terminal, a rubber insulation cover and a metal shell. The metal terminal comprises a terminal base; a protruding terminal strip is arranged on one end of the terminal base; and an anti-eject sheet, a positioning sheet and terminal pins are arranged on the other end, wherein there are three terminal pins. By means of the above technical scheme, compared to the prior art, the USB connector learns from the no-soldering techniques of network cable connectors and makes scientific improvement in that the three terminal pins are provided instead of two terminal pins. Tips of the three pins penetrate through wire skin, and are fixed with a conductor and the wire skin in the form of a closely fit triangle; and the whole terminal tip of each terminal pin is changed into a ladder-shaped structure with an arc. The contact surface between the tip of one of the pins and the wire conductor is increased, and so is the total surface between the tips of the three pins and the wire conductor. Pin tip triangular fixing can ensure good conduction performance and stable electrical performance, and the conduction resistance can reach up to 20 milliohm.

Description

A kind of novel USB connector

Technical field

The utility model relates to electronic product, specifically, relates to a kind of improved USB connector.

Background technology

1. existing USB plug connector is that welding manner carries out the wiring conducting, is at first cable core to be peeled off to the heart yearn skin exposed metal conductor of suitable length, after tin sticky, is welded again.There is defect in this welding method, and processing cost is high, inefficiency, and welding needs the technical professional just can complete this operation, and electric fraction defective is high, as: short circuit/opening circuit/open circuit/loose contact/conducting resistance is too high.

2. existing USB plug connector is assembled by three-piece or many covers, at first cable and terminal body are connected and fixed, plug is placed on to terminal body and fixes, then it is assemblied in to metal shell inside, more afterwards another metal shell is placed on it and fixes with it.There is certain defect in this process, and operation is loaded down with trivial details, and the assembler stands more, and production efficiency is low, and staffing is more, and processed finished products is high.

3. the mode of connection of the crystal head of cable interface is exempted from scolding tin at present, fit tightly through heart yearn and conductor with the terminal needle point and realize electrically conducting, its crystal head (the USB joint that comprises the existing similar same structure in market) only has two needle points and cored wire conductor conducting, needle body shape point excessively makes needle point and the cored wire conductor contact area is little and contact point only has 2 points, and 2 contacts are fixing easily looseningly can cause conducting resistance excessive and unstable.More than existing USB plug connector only has two needle point conduction resistance value 22m Ω, and the de-stabilising effect conduction property.Thereby use for reference this technique of exempting from welding manner in addition science improve, change two pins into three pins and needle body changes into circular-arc trapezoidal shape, the area that its needle body of single increasing contacts with cored wire conductor, three are strengthened the area summation that its needle body contacts with cored wire conductor, three pins form 3 fastnesses that fixedly heart yearn and cored wire conductor have been reinforced its needle body and heart yearn, guarantee its superior conduction property and fabulous stability, in resistance value 20m Ω.

4. weld the easy contaminated environment of tin used, destroy environment for human survival.Product component is too much, the how required a large amount of manpower of manufacturing procedure and resource, and under the prerequisite with to the protection of human environment in short supply the present society labour, the design people feels deeply and is necessary to improve this technique and removes welding from and reduce the Product Assembly assembly.

Summary of the invention

The technical problems to be solved in the utility model is to overcome above-mentioned defect, provides that a kind of conduction is good, electric property is stable and the low novel USB connector of conduction resistance value.

For addressing the above problem, the technical scheme that the utility model adopts is:

A kind of novel USB connector, comprise insulating body, metal terminal, insulating cement lid and metal shell, described metal terminal comprises that terminal matrix, terminal matrix one end are provided with the terminal raised line, the other end is provided with anti-back sheet, spacer and terminal pins, it is characterized in that, the quantity of described terminal pins is three.

As a kind of improvement:

Described terminal pins comprises terminal needle point and terminal needle stand.

The front of described terminal needle point is the trapezium structure with circular arc, and top, side is triangular structure.

As further improvement:

Described terminal needle point turns to a lateral deviation.

The yawing moment of the terminal needle point at described two ends is contrary with the yawing moment of middle terminal needle point.

As further improving:

Described insulating body and the clamping of insulating cement lid.

Owing to having adopted technique scheme, compared with prior art, the technique of exempting from welding manner that the utility model is used for reference the network connection joint in addition science is improved, change the sub-needle point of two butts into three butts needle point, the utility model fits tightly triangle by three needle points through heart yearn skin and conductor and the formation of heart yearn skin and fixes, and whole terminal needle point changes into circular-arc trapezoidal shape structure, singlely just strengthen the area that its terminal needle point contacts with cored wire conductor, three are strengthened the area summation that its terminal needle point contacts with cored wire conductor, the needle point triangle is fixing can guarantee the electric property that its superior conduction property is stable with it, conduction resistance value can reach in 20m Ω.

In addition, it is high that the utility model has production efficiency in addition, exempts from welding material pollution-free, and manufacturing procedure can solve present society labour phenomenon in short supply less, simple to operate without the professional, to newly advancing the instant explanation of operator, just can start to work.The metal shell upper and lower covers is that Contiuum type reduces the assembling timeliness.

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

the accompanying drawing explanation

Fig. 1 is the assembling decomposing schematic representation of a kind of novel a kind of embodiment of USB connector of the utility model;

Fig. 2 is the structural representation of metal terminal in Fig. 1.

In figure: the 1-insulating body; The 2-metal terminal; 3-insulating cement lid; The 4-metal shell; 21-terminal raised line; 22-terminal matrix; 23-anti-back sheet; The 24-spacer; 25-terminal needle point; 26-terminal needle stand.

Embodiment

Embodiment: as shown in Figure 1, a kind of novel USB connector, comprise insulating body 1, metal terminal 2, insulating cement lid 3 and metal shell 4, and described insulating body 1 covers 3 clampings with insulating cement.

Described metal terminal 2 comprises that terminal matrix 22, terminal matrix 22 1 ends are provided with terminal raised line 21, and the other end is provided with anti-back sheet 23, spacer 24 and terminal pins, and the quantity of described terminal pins is three.

As shown in Figure 2, described terminal pins comprises terminal needle point 25 and terminal needle stand 26.The front of described terminal needle point 25 is the trapezium structure with circular arc, and side is triangle.Described terminal needle point 25 turns to a lateral deviation.The yawing moment of the terminal needle point 25 at described two ends is contrary with the yawing moment of middle terminal needle point 25.

In the utility model, add insulating cement lid 3 by insulating body 1 and form an assembly, insulating cement covers 3 both sides and is provided with and buckles wall 33 and fix with upper button platform 17 interlocks of insulating body 1.Insulating cement covers 3 outer ends and is provided with four through wires holes, respectively that a pair of power supply through wires hole 31 is distributed in both sides and a pair of signal through wires hole 32 is distributed in middle, corresponding to corresponding heart yearn, a pair of power supply heart yearn and a pair of signal core line, core is penetrated in the heart yearn hole of corresponding insulating cement lid 3, terminal is placed in the terminal groove 12 of insulating body 1, the terminal tails needle point is limited in the limit needle tray 16 of corresponding insulating cement lid 3 upward, with simple and easy fixture, insulating cement lid 3 is pressed into, insulating cement covers 3 both sides and is provided with and buckles wall 33 and fix with lower button platform 18 interlocks of insulating body 1, terminal needle point 25 fits tightly through the exhausted skin of heart yearn and cored wire conductor the electrically conducting effect that achieves, it is the trapezium structure with circular arc that every Pin terminal is provided with its shape of three needle points positive, top, side is that the triangle the top of the horn is its needle point, before and after the long limit of the triangle of three pins of its every Pin terminal two pins in the middle of same direction one in the other direction.

Single metal shell 4 is another assembly, enclosure that the terminal body seat after above-mentioned assembling wire is packed into from metal shell 4 rear ends, and the shell front end is provided with front limit draw-in groove 13 its front limit of assurance that front limit convex closure 42 is placed in insulating body 1.Metal shell 4 upper backs are provided with the disjunctor upper cover, above are covered with two rear spacing convex closures 43, and by the pressing of disjunctor upper cover, the rear spacing convex closure 43 of upper cover two is affixed on insulating body 1 assembly breech face and is fixed.

Claims

1. a novel USB connector, comprise insulating body (1), metal terminal (2), insulating cement lid (3) and metal shell (4), described metal terminal (2) comprises that terminal matrix (22), terminal matrix (22) one ends are provided with terminal raised line (21), the other end is provided with anti-back sheet (23), spacer (24) and terminal pins, it is characterized in that: the quantity of described terminal pins is three.

2. a kind of novel USB connector according to claim 1, it is characterized in that: described terminal pins comprises terminal needle point (25) and terminal needle stand (26).

3. a kind of novel USB connector according to claim 2, it is characterized in that: the front of described terminal needle point (25) is the trapezium structure with circular arc, top, side is triangular structure.

4. a kind of novel USB connector according to claim 3, it is characterized in that: described terminal needle point (25) turns to a lateral deviation.

5. a kind of novel USB connector according to claim 4, it is characterized in that: the yawing moment of the terminal needle point (25) at described two ends is contrary with the yawing moment of middle terminal needle point (25).

6. according to one of them described a kind of novel USB connector of claim 1 to 5, it is characterized in that: described insulating body (1) and (3) clamping of insulating cement lid.