CN219067417U - Coaxial connector - Google Patents

Abstract

The utility model provides a coaxial connector, includes metal casing, insulator, conductive terminal and cable, the metal casing is including the basal portion that forms a tube-shape interface, the insulator set up in the interface and be equipped with downward open-ended butt joint hole, conductive terminal include lengthwise dull and stereotyped portion with from the horizontal both sides limit of dull and stereotyped portion is buckled downwards and is extended into the contact arm of butt joint hole, the cable is including being located its inlayer heart yearn, the heart yearn place in dull and stereotyped portion, the insulator is equipped with convex locating piece, the basal portion is equipped with the breach that upwards runs through, the breach is being close to the upper edge department of basal portion is equipped with a shrink neck, the locating piece embedding breach and by shrink neck card is held fixedly, shrink neck multiplicable metal casing and insulator equipment's holding power reduces the risk that the insulator drops.

Description

Coaxial connector

[ field of technology ]

The present utility model relates to a coaxial connector, and more particularly, to a coaxial connector with improved structural stability.

[ background Art ]

An electrical connector disclosed in the related art please refer to chinese patent No. CN2513254Y, which includes an insulating body, a conductive terminal and a shielding housing, wherein a pair of side wings are symmetrically disposed at the outer side of the bottom end of the insulating body, a pair of bayonets are concavely disposed at the side edge of the bottom end of the shielding housing, and the side wings of the insulating body are engaged with the bayonets of the shielding housing, but the side wings and the bayonets may loose due to weaker holding force therebetween, thereby affecting the electrical performance of the electrical connector.

Accordingly, there is a need for an improved coaxial connector that addresses the above issues.

[ utility model ]

The main objective of the present utility model is to provide a coaxial connector with better structural stability.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a coaxial connector, includes metal casing, insulator, conductive terminal and cable, the metal casing is including the basal portion that forms a tube-shape interface, the insulator set up in the interface and be equipped with downward open-ended butt joint hole, conductive terminal include lengthwise dull and stereotyped portion with from the horizontal both sides limit of dull and stereotyped portion is buckled downwards and is extended into the contact arm of butt joint hole, the cable is including being located its inlayer, the heart yearn place in dull and stereotyped portion, the insulator is equipped with convex locating piece, the basal portion is equipped with the breach that upwards runs through, the breach is being close to the upper edge department of basal portion is equipped with a receipts necking down, the locating piece embedding the breach and by the shrink neck card holds fixedly.

Further, the notch is arranged in a dovetail shape with a small upper part and a large lower part, and the positioning block is embedded into the notch from top to bottom.

Further, the metal shell is provided with clamping parts protruding into two opposite ends of the notch so as to form the necking.

Further, the junction of the notch and the upper edge is in arc transition.

Further, the insulator comprises a body part and a buckling part connected to the body part, the body part is provided with a containing cavity which penetrates through the body part up and down and contains the conductive terminal, the butt joint hole is a lower opening of the containing cavity, two opposite sides of the body part are respectively provided with one positioning block, and the two positioning blocks are symmetrically arranged from the buckling part.

Further, the conductive terminal comprises a pressing part which is reversely bent from the front end of the flat plate part far away from the cable, the core wire is pressed to the flat plate part from top to bottom by the pressing part, and the pressing part is provided with a boss part which protrudes downwards and is tightly pressed against the core wire.

Further, the pressing portion is provided with at least two boss portions.

Further, one of the boss portions is provided at a middle portion of the pressing portion, and the other boss portion is provided at an extension end of the pressing portion.

Further, the body portion includes two notches recessed downward from an upper surface thereof, the two notches are respectively disposed at two sides of the buckling portion, the base portion includes two barb portions protruding inward, and the barb portions are disposed corresponding to the notches and abut against an inner bottom surface of the notches downward.

Further, the metal shell comprises a cover plate connected to the upper edge of the base part and wing parts connected to two sides of the cover plate, the cover plate shields the upper opening of the connector, the corresponding wing parts are bent towards each other to clamp the cable, and the inner surfaces of the cover plate and/or the wing parts are provided with projections for supporting the cable.

Compared with the prior art, the shrinkage neck for clamping and fixing the positioning block is arranged on the notch, so that the assembly maintaining force of the metal shell and the insulator can be effectively increased, the risk of falling off of the insulator is reduced, and the structural stability of the coaxial connector is improved.

[ description of the drawings ]

Fig. 1 is a perspective view of the coaxial connector of the present utility model.

Fig. 2 is a schematic view showing a state in which a core wire of the coaxial connector of the present utility model is placed on a flat plate portion of a conductive terminal.

Fig. 3 is a perspective view of another angle of fig. 2.

Fig. 4 is an exploded perspective view of fig. 2.

Fig. 5 is a perspective view of another angle of fig. 4.

Fig. 6 is a side view of fig. 2.

Fig. 7 is a cross-sectional view taken along line A-A of fig. 1.

[ detailed description ] of the utility model

For a better understanding of the utility model with objects, structures, features, and effects, the utility model will be described further with reference to the drawings and to the detailed description.

Referring to fig. 1 to 4, the present utility model discloses a coaxial connector 100, which comprises a metal shell 1, an insulator 2, a conductive terminal 3 and a cable 4, wherein the metal shell 1 comprises a base 10 forming a cylindrical connector 101, the insulator 2 is disposed in the connector 101 and is provided with a butt joint hole 201 opened downwards, the conductive terminal 3 comprises an elongated flat plate portion 31 and contact arms 32 bent downwards from two lateral side edges of the flat plate portion 31 and extending into the butt joint hole 201, the cable 4 comprises a core wire 40 positioned at the innermost layer of the core wire 40, the core wire 40 is disposed on the flat plate portion 31, the insulator 2 is provided with a protruding positioning block 202, the base 10 is provided with a notch 102 penetrating upwards, the notch 102 is provided with a necking 104 near the upper edge 103 of the base 10, and the positioning block 202 is embedded in the notch 102 and is clamped and fixed by the necking 104 in combination with fig. 6. The metal shell 1 is provided with a clamping part 105 protruding into opposite ends of the notch 102 to form the shrink neck 105. In a preferred embodiment, the notch 102 is configured as a dovetail with a smaller top and a larger bottom, and the positioning block 202 is embedded into the notch 102 from top to bottom. Compared with the prior art, the provision of the shrinkage neck 104 on the notch 102 can effectively increase the holding force for assembling the metal shell 1 and the insulator 2, and reduce the risk of the insulator 2 falling off during the assembling process and loosening during use. Referring to fig. 4 and 6, the junction between the notch 102 and the upper edge 103 is in arc transition, so that the stress of the insulator 2 during pressing down can be effectively reduced, the assembly is convenient, and the risk of damage to the insulator 2 during pressing down can be reduced.

As shown in fig. 4, the insulator 2 includes a main body 21 and a fastening portion 22 connected to the main body 21, the main body 21 is provided with a housing cavity 20 penetrating up and down and housing the conductive terminal 3, the docking hole 201 is a lower opening of the housing cavity 20, two opposite sides of the main body 21 are respectively provided with one positioning block 202, and the two positioning blocks 202 are symmetrically arranged with respect to the fastening portion 22. The conductive terminal 3 includes a pressing portion 33 reversely bent from the flat plate portion 31 far from the front end of the cable 4, the core wire 40 is pressed down to the flat plate portion 31 from above by the pressing portion 33, and the pressing portion 33 is provided with a boss portion 330 protruding downward and closely pressing the core wire 40. Referring to fig. 7, in order to increase the contact force between the pressing portion 33 and the core wire 40, the pressing portion 33 is provided with at least two of the boss portions 330. In this embodiment, one of the boss portions 330 is disposed at the middle portion of the pressing portion 33, and the other boss portion 330 is disposed at the extending end of the pressing portion 33 to press the core wire 40 more uniformly in the extending direction of the core wire 40. The structure of the biconvex table portion 330 disposed on the pressing portion 33 can achieve multipoint contact with the core wire 40, which is beneficial to increasing the holding effect of the pressing portion 33 for pressing the core wire 40, effectively increasing the reliability of clamping the core wire 40, and further improving the structural stability of the coaxial connector 100.

Referring to fig. 2, 4 and 6, the outer periphery of the body 21 of the insulator 2 includes two notches 210 recessed downward from the upper surface thereof, the two notches 210 are respectively disposed on two sides of the fastening portion 22, the base 10 of the metal shell 1 includes two inwardly protruding barb portions 106, and the barb portions 106 are disposed corresponding to the notches 210 and abut against the inner bottom surface of the notches 210 downward. Such an arrangement can not only enhance the positioning effect between the metal shell 1 and the insulator 2, but also enhance the structural stability of the coaxial connector 100 by preventing the insulator 2 from coming out of the metal shell 1 in the up-down direction by the abutment of the barb 106 against the inner bottom surface of the recess 210.

Referring to fig. 1, 4 and 7, the metal shell 1 includes a cover plate 11 connected to an upper edge 103 of the base 10 and wing portions 12 connected to two sides of the cover plate 11, the cover plate 11 shields the upper opening of the connector 101, the corresponding wing portions 12 are bent toward each other to clamp the cable 4, the cable 4 includes an inner insulating layer 41, a shielding layer 42 and an outer insulating layer 43 sequentially covering the outer layer of the core wire 40, the wing portions 12 include a first wing portion 121 tightly fastened to the outer insulating layer 43 and a second wing portion 122 tightly fastened to the shielding layer 42, so that the cover plate 11 is stably fixed on the outer side of the insulator 2 and electrically connected to the shielding layer 42, and thus the metal shell 1 can well form shielding and electrical shielding protection for the conductive terminal 3 inside. In order to increase the holding force of the metal shell 1 in combination with the cable 4, the inner surfaces of the cover plate 11 and the wing 12 are provided with a projection 13 against the cable 4.

The above examples are only preferred embodiments of the present utility model, and should not be construed as limiting the scope of the utility model, i.e. all simple and equivalent changes and modifications that can be made in accordance with the claims and the specification shall still fall within the scope of the utility model covered by the patent claims.

Claims (10)

1. The utility model provides a coaxial connector, includes metal casing, insulator, conductive terminal and cable, the metal casing is including forming the basal portion of a tube-shape interface, the insulator set up in the interface and be equipped with downward open-ended butt joint hole, conductive terminal includes the flat board portion of lengthwise and from the lateral both sides limit of flat board portion is buckled downwards and is extended into the contact arm of butt joint hole, the cable is including being located its innermost heart yearn, the heart yearn place in flat board portion, its characterized in that: the insulator is provided with a convex positioning block, the base is provided with a notch penetrating upwards, the notch is provided with a necking down near the upper edge of the base, and the positioning block is embedded into the notch and is clamped and fixed by the necking down.

2. The coaxial connector of claim 1, wherein: the notch is arranged in a dovetail shape with a small upper part and a large lower part, and the positioning block is embedded into the notch from top to bottom.

3. The coaxial connector of claim 1, wherein: the metal shell is provided with clamping parts protruding into two opposite ends of the notch so as to form the necking.

4. A coaxial connector according to any one of claims 1-3, wherein: the junction of the notch and the upper edge is in arc transition.

5. The coaxial connector of claim 4, wherein: the insulator comprises a body part and a buckling part connected with the body part, wherein the body part is provided with a containing cavity which penetrates through the body part up and down and contains the conductive terminal, the butt joint hole is a lower opening of the containing cavity, two opposite sides of the body part are respectively provided with one positioning block, and the two positioning blocks are symmetrically arranged from the buckling part.

6. The coaxial connector of claim 5, wherein: the conductive terminal comprises a pressing part which is reversely bent from the front end of the flat plate part far away from the cable, the core wire is pressed to the flat plate part from top to bottom by the pressing part, and the pressing part is provided with a boss part which protrudes downwards and is tightly pressed against the core wire.

7. The coaxial connector of claim 6, wherein: the pressing part is provided with at least two boss parts.

8. The coaxial connector of claim 7, wherein: one of the boss portions is provided at the middle portion of the pressing portion, and the other boss portion is provided at the extending end of the pressing portion.

9. The coaxial connector of claim 5, wherein: the body part comprises two notches which are recessed downwards from the upper surface of the body part, the two notches are respectively arranged on two sides of the buckling part, the base part comprises two barb parts which are arranged in a protruding mode inwards, and the barb parts are arranged corresponding to the notches and are propped against the inner bottom surface of the notches downwards.

10. The coaxial connector of claim 1, wherein: the metal shell comprises a cover plate connected to the upper edge of the base part and wing parts connected to two sides of the cover plate, the cover plate shields the upper opening of the connector, the corresponding wing parts are bent towards each other to clamp the cable, and the inner surfaces of the cover plate and/or the wing parts are provided with protruding blocks for propping against the cable.

Images