CN213340995U

CN213340995U - Coaxial electric connector

Info

Publication number: CN213340995U
Application number: CN202021905019.8U
Authority: CN
Inventors: 邱智鸿
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-06-01
Anticipated expiration: 2030-09-03

Abstract

The utility model provides a coaxial electric connector, which comprises a first insulating body, wherein the first insulating body is provided with a plurality of first terminals and a plurality of second terminals; an upper cover mounted on the first insulating body; at least one coaxial line, a slot for the coaxial line to be installed is formed between the upper cover and the first insulating body; the two pressing strips are respectively arranged on two opposite sides of the grounding wire layer, the other side of one side of the two pressing strips relative to the grounding wire layer respectively props against the inner surface of an upper cover and the second contact part, and the signal wire props against the first contact part; and a second insulation body, the second insulation body is arranged on the first insulation body, so as to provide a coaxial electric connector which fixes the coaxial line and makes the whole structure stable.

Description

Coaxial electric connector

Technical Field

The present invention relates to a coaxial electrical connector, and more particularly to a coaxial electrical connector with a coaxial cable and a stable structure.

Background

With the increasing use of high-speed internet and mass storage devices, the demand for processing a large amount of information data and signal transmission speed is higher and higher, and further, in order to bring convenience to people, the structural design of electronic appliances is gradually developing towards high performance, power saving and miniaturization.

Compared with the conventional electronic wire structure, the Micro Coaxial Cable has a smaller outer diameter and higher data transmission capability, and is widely applied to signal transmission between internal module boards of electrical appliances or intelligent products, such as personal computers, tablet computers, smart phones and the like, and even applied to signal transmission between fields of precision instruments, such as medical treatment, transportation equipment, aviation and the like.

When the traditional micro coaxial cable is assembled in the electrical connector, the phenomena of offset and falling off during the assembly often occur easily, which causes the influence on the signal transmission quality, or when the micro coaxial cable is assembled in the electrical connector only by using the traditional crimping combination mode during the assembly and combination, the electrical connector is aged for a long time, and further causes the defects of offset and falling off caused by uneven crimping pressure or improper crimping position, and the like.

Therefore, how to effectively improve the unstable problem of assembling the conventional micro coaxial cable and the electrical connector by means of innovative hardware design requires continuous efforts of related industry developers and related researchers to overcome and solve the problem.

SUMMERY OF THE UTILITY MODEL

In view of this, the technical problem solved by the present invention is to solve the bottleneck encountered when assembling the conventional ultra-thin coaxial cable and the electrical connector, and therefore, the inventor of the present invention develops the assembly relationship between the first terminal, the second terminal, the third terminal and the position-limiting member using the special engaging structure and the coaxial electrical connector performing welding through the welding layer by assisting with the abundant professional knowledge and practical experience.

The technical means adopted by the utility model are as follows.

A coaxial electric connector comprises a first insulating body, a second insulating body and a plurality of first terminals, wherein the first insulating body is provided with a plurality of first terminals and a plurality of second terminals, the first terminals are provided with a first contact part and a first butt-joint arm bent downwards from one end of the first contact part to form a U shape, the second terminals are provided with a second contact part and a second butt-joint arm bent downwards from one end of the second contact part, and the second terminals are provided with L-shaped sections; an upper cover mounted on the first insulating body; at least one coaxial line, a slot for the coaxial line to be installed is formed between the upper cover and the first insulating body, each coaxial line takes a signal line as an axis, a signal end insulating layer, a grounding line layer and a grounding line insulating layer are sequentially coated from inside to outside, and one end part of the coaxial line is exposed out of the signal line, the signal end insulating layer and the grounding line layer; the two pressing strips are respectively arranged on two opposite sides of the grounding wire layer, the other side of one side of the two pressing strips relative to the grounding wire layer respectively props against the inner surface of an upper cover and the second contact part, and the signal wire props against the first contact part; and a second insulating body mounted to the first insulating body.

In an embodiment of the present invention, the two pressing strips further include a first welding layer and a second welding layer abutting against the inner surface of the upper cover and one side of the second contact portion.

In an embodiment of the present invention, one side of the signal line abutting against the first contact portion further includes a third solder layer.

In an embodiment of the present invention, an outer surface of an upper cover of the upper cover has a plurality of pressing grooves.

In an embodiment of the present invention, the shape of the pressing groove is any shape.

In an embodiment of the present invention, wherein the shape of the pressing groove is circular, oval, or polygonal.

In an embodiment of the present invention, an outer surface of an upper cover of the upper cover has a plurality of welding holes.

In an embodiment of the present invention, a limiting protrusion is extended from one side of the welding hole.

In an embodiment of the present invention, a weld bead is disposed between the inner side of the welding hole and the coaxial line.

In an embodiment of the present invention, one end of the top cover has at least one engaging portion, and each of the engaging portions is engaged with a protruding portion of the first insulating body.

The utility model discloses an in, wherein, this upper cover has a shell fragment portion for the other end of this block portion one end, and this shell fragment portion contradicts in this earth connection insulating layer.

In an embodiment of the present invention, the coaxial electrical connector further includes a first fixing portion, and the first fixing portion fixes the position of the coaxial line.

In an embodiment of the present invention, the coaxial electrical connector further includes a second fixing portion and a third fixing portion, the second fixing portion and the third fixing portion are disposed on opposite sides of the coaxial line.

In an embodiment of the present invention, the signal line is formed by twisting a plurality of metal wires.

In an embodiment of the present invention, the second insulating body includes a circuit board, the circuit board is provided with a plurality of third terminals and a plurality of position-limiting parts, the third terminals have an elastic part and a stopping part connected to the elastic part, and the elastic part and the stopping part form a notch.

In an embodiment of the present invention, the first butt-joint arm can be embedded in the notch.

In an embodiment of the present invention, the position-limiting member can be engaged with a position-limiting hole of the second docking arm.

The utility model discloses produced beneficial effect: therefore, the utility model discloses a coaxial electric connector sees through stable cooperation each other between special block structure's first terminal, second terminal, third terminal and locating part during the equipment to and use the welding layer to weld, with the coaxial electric connector structure that provides more firm, skew and the bottleneck of obscission during the equipment that meets easily when solving traditional superfine coaxial line and electric connector equipment.

Drawings

FIG. 1: the present invention is a coaxial electrical connector according to one preferred embodiment.

FIG. 2: the present invention provides an overall assembly diagram of a coaxial electrical connector according to a preferred embodiment of the present invention.

FIG. 3: the present invention provides an assembly diagram of the coaxial line and the two pressing bars in one preferred embodiment.

FIG. 4: the present invention is an assembly diagram (I) of a cross section and a coaxial line according to the 4-4 cutting line and the direction indicated by the arrow of FIG. 1 in a preferred embodiment of the present invention.

FIG. 5: the present invention is an assembly diagram of a cross section and a coaxial line according to the 4-4 cutting line and the direction indicated by the arrow of fig. 1 (ii) in a preferred embodiment of the present invention.

FIG. 6: the present invention is an assembly diagram of a cross section and a coaxial line according to the 6-6 cutting line of fig. 1 and the direction indicated by the arrow in a preferred embodiment of the present invention.

FIG. 7: the present invention provides an overall assembly state diagram of the coaxial electrical connector according to a preferred embodiment of the present invention.

FIG. 8: the present invention provides a coaxial electrical connector according to a preferred embodiment of the present invention.

FIG. 9: the present invention provides a coaxial electrical connector according to a preferred embodiment of the present invention.

Description of the figure numbers:

1000 coaxial electric connector

1 first insulating body

10 first terminal

101 first contact part

102 first docking arm

11: a protrusion

12 second terminal

121: second contact part

122 second docking arm

1221 limiting hole

2: upper cover

21 inner surface of upper cover

22 outer surface of the upper cover

221 pressing groove

222 welding hole

223 limit projection part

224 welding bead

225 engaging part

226 spring plate part

3: coaxial line

31 signal line

32 signal terminal insulating layer

33 ground wire layer

34 insulating layer of ground wire

4: slot

5, pressing strip

51 first fixed part

52 second fixed part

53 third fixing part

6: second insulating body

61 third terminal

611 elastic part

612 stop part

613 notch

614 limiting part

7, a circuit board.

Detailed Description

Fig. 1 to fig. 3 are an overall schematic view of a coaxial electrical connector, an overall assembly view of the coaxial electrical connector, and an assembly view of a coaxial line and two press bars according to a preferred embodiment of the present invention. The utility model provides a coaxial electric connector, which comprises a first insulating body 1, wherein the first insulating body 1 is provided with a plurality of first terminals 10 and a plurality of second terminals 12, the first terminal 10 is provided with a first contact part 101 and a first butt-joint arm 102 which is bent downwards from one end of the first contact part 101 and is in a U shape, the second terminal 12 is provided with a second contact part 121 and a second butt-joint arm 122 which is bent downwards from one end of the second contact part 121, and the second terminal 12 is provided with an L-shaped section; an upper cover 2, the upper cover 2 is made of metal, the upper cover 2 is installed on the first insulating body 1; at least one coaxial line 3, a slot 4 for mounting the coaxial line 3 is formed between the upper cover 2 and the first insulating body 1, each coaxial line 3 takes a signal line 31 as an axis, the signal line 31 is formed by twisting a plurality of metal wires, a signal end insulating layer 32, a grounding line layer 33 and a grounding line insulating layer 34 are sequentially coated from inside to outside, and one end part of the coaxial line 3 is exposed out of the signal line 31, the signal end insulating layer 32 and the grounding line layer 33; two pressing strips 5, the two pressing strips 5 are respectively arranged on two opposite sides of the grounding wire layer 33, the other side of one side of the two pressing strips 5, which is opposite to the grounding wire layer 33, respectively abuts against an upper cover inner surface 21 and the second contact part 121, the signal wire 31 abuts against the first contact part 101, the grounding wire layer 33, the upper cover inner surface 21 and the second contact part 121 are electrically connected with each other, and the signal wire 31 and the first contact part 101 are electrically connected with each other; and a second insulating body 6, the second insulating body 6 being mounted to the first insulating body 1. In practice, the upper cover 2, the first insulator 1 and the second insulator 6 are assembled and pressed in sequence.

In an embodiment of the present invention, the two pressing bars 5 further include a first welding layer (not shown) and a second welding layer (not shown) abutting on one side of the inner surface 21 of the upper cover and the second contact portion 121, the signal line 31 further includes a third welding layer (not shown) abutting on one side of the first contact portion 101, the coaxial line 3 is fixed on the first welding layer, the second welding layer and the third welding layer by welding, so as to avoid the offset and the falling-off phenomenon during assembling.

In an embodiment of the present invention, an upper surface 22 of the upper lid 2 has a plurality of pressing grooves 221, the pressing grooves 221 have any shape, and the pressing grooves 221 have a circular, elliptical, or polygonal shape. In order to increase the stability after assembly, the pressing grooves 221 with different shapes can be formed according to actual requirements, and the pressing grooves 221 are pressed by a pressing manner, so that the upper cover 2, the first insulating body 1 and the second insulating body 6 can be stably pressed to avoid the phenomenon of falling off after assembly.

In an embodiment of the present invention, an outer surface 22 of the upper cover 2 has a plurality of welding holes 222, and a limit protrusion 223 extends from one side of the welding holes 222, so that the welding holes 222 can be used to weld the coaxial electrical connector 1000.

In an embodiment of the present invention, one end of the upper cover 2 has at least one engaging portion 225, each engaging portion 225 corresponds to a protruding portion 11 of the first insulating body 1, the other end of the upper cover 2 opposite to one end of the engaging portion 225 has a spring portion 226, and the spring portion 226 abuts against the ground wire insulating layer 34.

Referring to fig. 4 to 5, in accordance with a preferred embodiment of the present invention, an assembly diagram (a) and an assembly diagram (b) of a cross section and a coaxial line viewed from a direction indicated by a cutting line 4-4 and an arrow in fig. 1 are shown, wherein at least one coaxial line 3 is disposed, each coaxial line 3 is covered with a signal line 31 as an axis, a signal end insulating layer 32, a ground line layer 33 and a ground line insulating layer 34 from inside to outside in sequence, and one end portion of the coaxial line 3 is exposed out of the signal line 31, the signal end insulating layer 32 and the ground line layer 33, and in the specific implementation, each coaxial line 3 can be installed between the upper cover 2 and the first insulating body 1 to form a slot 4, and then assembled and pressed with the upper cover 2, the first insulating body 1 and the second insulating body 6.

Please refer to fig. 6, which is an assembly diagram of a cross section and a coaxial line according to a preferred embodiment of the present invention, as viewed from the direction indicated by the arrow and the cut line 6-6 of fig. 1.

In an embodiment of the present invention, a welding bead 224 is disposed between the welding hole 222 and the coaxial line 3, and the welding hole 222 is used to weld the coaxial electrical connector 1000 and form the welding bead 224 to fix the position of the coaxial line 3.

In an embodiment of the present invention, the coaxial electrical connector 1000 further includes a first fixing portion 51, the first fixing portion 51 fixes the position of the coaxial cable 3, the coaxial electrical connector 1000 further includes a second fixing portion 52 and a third fixing portion 53, the second fixing portion 52 and the third fixing portion 53 are disposed on two opposite sides of the coaxial cable 3, the position of the coaxial cable 3 is fixed by the first fixing portion 51, the second fixing portion 52 and the third fixing portion 53 during the specific implementation, so as to form a more stable coaxial electrical connector 1000 structure.

Fig. 7 to 9 are a first state diagram, a second state diagram and a third state diagram of the coaxial electrical connector according to a preferred embodiment of the present invention.

In an embodiment of the present invention, the second insulating body 6 includes a circuit board 7, the circuit board 7 is provided with a plurality of third terminals 61 and a plurality of limiting members 614, the third terminals 61 have an elastic portion 611, a stopping portion 612 connected to the elastic portion 611, and the elastic portion 611 and the stopping portion 612 form a notch 613, wherein the first terminal 10 and the third terminal 61 are electrically connected to each other and the second terminal 12 and the limiting member 614 are electrically connected to each other. In practical implementation, the first terminal 10, the second terminal 12, the third terminal 61 and the limiting member 614 with special engaging structures can be assembled and welded through the welding layer to avoid the falling-off phenomenon after assembly.

In an embodiment of the present invention, the first docking arm 102 may be embedded in the notch 613; the position-limiting member 614 can be engaged with a position-limiting hole 1221 of the second docking arm 122 to form a more stable coaxial electrical connector 1000 structure.

To sum up, the utility model discloses compare with prior art and product under, the utility model has one of following advantage.

One of the objectives of the present invention is to provide a stable connection between the first terminal, the second terminal, the third terminal and the position-limiting part of the special engaging structure, and to use the welding layer to weld, and to use the remaining fixing structure to fix, so as to provide a more stable coaxial electrical connector structure, and further to effectively maintain the quality and reliability of the whole coaxial electrical connector.

Claims

1. A coaxial electric connector is characterized by comprising a first insulating body (1), wherein the first insulating body (1) is provided with a plurality of first terminals (10) and a plurality of second terminals (12), the first terminals (10) are provided with a first contact part (101) and a first butt arm (102) bent downwards from one end of the first contact part (101) to form a U shape, the second terminals (12) are provided with a second contact part (121) and a second butt arm (122) bent downwards from one end of the second contact part (121), and the second terminals (12) are provided with L-shaped sections;

an upper cover (2), the upper cover (2) is installed on the first insulating body (1);

at least one coaxial line (3), a slot (4) for mounting the coaxial line (3) is formed between the upper cover (2) and the first insulating body (1), each coaxial line (3) takes a signal line (31) as an axis, a signal end insulating layer (32), a grounding line layer (33) and a grounding line insulating layer (34) are sequentially coated from inside to outside, and one end part of the coaxial line (3) is exposed out of the signal line (31), the signal end insulating layer (32) and the grounding line layer (33);

the two pressing strips (5), the two pressing strips (5) are respectively arranged on two opposite sides of the grounding wire layer (33), the other sides of the two pressing strips (5) relative to the grounding wire layer (33) respectively abut against an upper cover inner surface (21) and the second contact part (121), and the signal wire (31) abuts against the first contact part (101); and

a second insulating body (6), the second insulating body (6) being mounted to the first insulating body (1).

2. The coaxial electrical connector of claim 1, wherein the side of the two beads (5) abutting against the inner surface (21) of the top cover and the second contact portion (121) comprises a first solder layer and a second solder layer; wherein, one side of the signal line (31) abutting against the first contact part (101) comprises a third welding layer.

3. The coaxial electrical connector of claim 1, wherein a top cover outer surface (22) of the top cover (2) has a plurality of pressing grooves (221); wherein the shape of the pressing groove (221) is any shape.

4. The coaxial electrical connector of claim 1, wherein a cover outer surface (22) of the cover (2) has a plurality of solder apertures (222); wherein, a limit protrusion (223) extends from one side of the welding hole (222), and a welding bead (224) is disposed between the welding hole (222) and the coaxial line (3).

5. The coaxial electrical connector of claim 1, wherein the top cover (2) has at least one engaging portion (225) at one end, and the engaging portion (225) is engaged with a protrusion (11) of the first insulating body (1).

6. The coaxial electrical connector of claim 5, wherein the other end of the top cover (2) opposite to the one end of the engaging portion (225) has a spring portion (226), and the spring portion (226) abuts against the ground line insulation layer (34).

7. The coaxial electrical connector of claim 1, wherein the coaxial electrical connector (1000) comprises a first fixing portion (51), the first fixing portion (51) fixing the position of the coaxial wire (3).

8. The coaxial electrical connector of claim 7, wherein the coaxial electrical connector (1000) comprises a second fixing portion (52) and a third fixing portion (53), the second fixing portion (52) and the third fixing portion (53) being disposed on opposite sides of the coaxial cable (3).

9. The coaxial electrical connector of claim 1, wherein the signal line (31) is formed by twisting a plurality of metal wires.

10. The coaxial electrical connector of claim 1, wherein the second housing (6) comprises a circuit board (7), the circuit board (7) is provided with a plurality of third terminals (61) and a plurality of stoppers (614), the third terminals (61) have an elastic portion (611) and a stopper portion (612) connected to the elastic portion (611), and the elastic portion (611) and the stopper portion (612) form a slot (613); wherein the first docking arm (102) is fittable into the slot (613); the limiting member (614) can be engaged with a limiting hole (1221) of the second docking arm (122).