CN110661121A

CN110661121A - Electric connector terminal fixing structure for positioning lateral terminal and terminal fixing kit

Info

Publication number: CN110661121A
Application number: CN201810702844.9A
Authority: CN
Inventors: 吴明岳; 詹益东; 黄德耀
Original assignee: OUTDOOR SOLUTIONS ELECTRONICS Co Ltd
Current assignee: OUTDOOR SOLUTIONS ELECTRONICS Co Ltd
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2020-01-07

Abstract

The invention provides an electric connector terminal fixing structure for positioning a lateral terminal, which comprises an insulating shell, a terminal fixing sleeve and one or more conductive terminals. A plurality of jacks are arranged on the insulating shell. The terminal fixing kit comprises a body part and one or more terminal positioning units arranged on the circumferential wall surface of the body part. The body of the conductive terminal is laterally fixed on the terminal positioning unit so as to be combined around the body, and one end of the conductive terminal penetrates through the insulating shell through the jack.

Description

Electric connector terminal fixing structure for positioning lateral terminal and terminal fixing kit

Technical Field

The present invention relates to an electrical connector terminal fixing structure, and more particularly, to an electrical connector terminal fixing structure having a lateral slot.

Background

An electrical connector, a conductor device for connecting electrical lines, also commonly referred to as a circuit connector or an electrical connector, is widely used in various electrical lines to connect or disconnect electrical circuits, and the connection may be temporary, easy to plug and unplug, or permanent.

The electric connector generally adopts pin terminals and socket terminals that dock each other, connects a plurality of circuits or electric wires through the connector that docks each other, and wherein, pin terminal one end switches on each other with the sinle silk in the cable, and the connection situation between sinle silk and the pin terminal will directly influence the quality of electric circuit good or bad.

In the assembly process of the electrical connector, the pin terminals are electrically connected to the wire cores, and then the pin terminals are inserted into the through holes of the plastic shell of the electrical connector and fixed. The length of the pin terminal is limited, in the process of inserting the pin, after the first pin terminal is fixed, the rest pin terminals are required to be drawn back firstly to be inserted into the through holes on the rubber shell, so that the length of the wire core is required to be reserved above at least one pin terminal, more cable insulating layers are required to be stripped, and the excessive wire core is exposed outside to increase the chance of oxidation and corrosion.

In view of the above-mentioned problems of the prior art connectors, the inventor of the present invention has recognized a need for a connector structure that is more user-friendly, easy to manufacture, and reliable.

Disclosure of Invention

The main object of the present invention is to provide a connector structure that is more user-friendly, easy to manufacture and produce, and has higher reliability.

To achieve the above objects, the present invention provides a terminal fixing structure of an electrical connector with lateral terminal positioning, which includes an insulating housing, a terminal fixing kit, and one or more conductive terminals. A plurality of jacks are arranged on the insulating shell. The terminal fixing kit comprises a body part and one or more terminal positioning units arranged on the circumferential wall surface of the body part. The body of the conductive terminal is laterally fixed on the terminal positioning unit so as to be combined around the body, and one end of the conductive terminal penetrates through the insulating shell through the jack.

Furthermore, the body of the conductive terminal is provided with one or more grooves, and the terminal positioning unit is provided with one or more clamping arms which are corresponding to the grooves in number and clamp the grooves so as to limit the displacement of the conductive terminal relative to the terminal positioning unit in the vertical direction.

Furthermore, the number of the grooves and the number of the clamping arms are two respectively.

Further, a groove is formed between the adjacent clamping arms in the circumferential direction of the body part.

Furthermore, the conductive terminal is provided with a columnar groove at one end of the tail part for the wire core to be inserted into.

Furthermore, a through hole communicated with the columnar groove is formed in the circumferential wall surface of the tail part of the conductive terminal.

Furthermore, a first guide inclined plane is arranged on the periphery in the jack and corresponds to a second guide inclined plane on the periphery outside the conductive terminal, so that the tail part of the conductive terminal corresponding to the rear end of the second guide inclined plane is limited to penetrate through the jack in the vertical direction.

Furthermore, one side of the insulating casing is provided with a positioning column, the tail end of the positioning column is provided with a locking structure, the terminal fixing sleeve is provided with a positioning hole, the positioning column of the insulating casing is inserted into the positioning hole in the terminal fixing sleeve so that the plurality of conductive terminals respectively pass through the jack, and the locking structure passes through the positioning hole and then fixes the position of the terminal fixing sleeve.

Furthermore, the positioning post has one or more slots for elastic deformation.

Another objective of the present invention is to provide a laterally positioning terminal fixing kit disposed in an electrical connector for fixing conductive terminals, the terminal fixing kit including a body and one or more conductive terminals. One or more terminal positioning units are provided on the circumferential wall surface of the body portion. The body of the conductive terminal is laterally fixed on the terminal positioning unit so as to be fixed around the body.

Compared with the prior art, the invention has the following beneficial effects:

1. the electric connector can complete the terminal insertion without keeping overlong wire cores, can reduce the length of exposed wire cores and increase the reliability of products.

2. The electric connector of the invention is easier to assemble, and the production efficiency is further improved by reducing the difficulty of the manufacturing process.

Drawings

FIG. 1 is a schematic external view of a terminal fixing structure of an electrical connector according to the present invention;

FIG. 2 is an exploded view of the terminal fixing structure of the electrical connector of the present invention;

FIG. 3 is an exploded view of the terminal fixing structure of the electrical connector of the present invention from another perspective;

FIG. 4-1 is a schematic assembly view (I) of the terminal fixing structure of the electrical connector of the present invention;

FIG. 4-2 is a schematic assembly view of the terminal fixing structure of the electrical connector according to the present invention;

fig. 4-3 are assembly views (iii) of the terminal fixing structure of the electrical connector of the present invention.

Description of the symbols

100 electric connector terminal fixing structure

10 outer case

20 terminal fixing structure

21 insulating shell

211 jack

2111 first lead bevel

212 locating column

213 locking structure

2131 first side inclined guide surface

2132 second side inclined guide surface

214 cutting groove

22 terminal fixing kit

221 body part

222 terminal positioning unit

2221 clamping arm

2222 groove

223 positioning hole

2231 first side inclined surface

2232 second side inclined surface

23 conducting terminal

231 second lead bevel

232 groove

233 column groove

234 through hole

30 electric cable

31 wire core

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings. In the drawings, the scale of the drawings is not necessarily to scale, but may be exaggerated for illustrative purposes, and the drawings and the scale are not intended to limit the scope of the present invention.

Please refer to fig. 1, which is an external view of the electrical connector of the present invention, as shown in the figure:

the present invention provides an electrical connector 100, the electrical connector 100 mainly includes an outer housing 10, a terminal fixing structure 20, and a cable 30 electrically connected to a plurality of conductive terminals on the terminal fixing structure 20. The outer housing 10 is used to cover the terminal fixing structure 20 and the outer side of the cable 30, so as to protect the inner terminal and the inner core from oxidation or corrosion. The terminal fixing structure 20 mainly includes an insulating housing 21, a terminal fixing member 22, and a plurality of conductive terminals 23.

Referring to fig. 2 and fig. 3, the following description is an exploded view of the terminal fixing structure of the electrical connector of the present invention, as shown in the drawings:

in a preferred embodiment, the insulating housing 21 is provided with a plurality of insertion holes 211 and a positioning post 212 coupled to one side of the insulating housing 21, and a locking structure 213 is disposed at a distal end of the positioning post 212. The terminal fixing kit 22 includes a main body 221, one or more terminal positioning units 222 disposed on the circumferential wall surface of the main body 221, and a positioning hole 223 disposed on the main body 221. The bodies of the conductive terminals 23 are laterally fixed on the terminal positioning unit 222 to be combined around the body 221. The positioning posts 212 of the insulating housing 21 are inserted into the positioning holes 223 of the terminal fixing assembly 22 so that the locking structures 213 pass through the positioning holes 223 to fix the terminal fixing assembly 22, the conductive terminals 23 pass through the insertion holes 211 respectively, the insertion holes 211 limit the horizontal displacement of the conductive terminals 23, and the locking structures 213 limit the vertical displacement of the terminal fixing assembly 22 and the conductive terminals 23 thereon.

In a preferred embodiment, the receptacle 211 of the insulative housing 21 has a first guiding inclined surface 2111 at the inner periphery thereof, and the first guiding inclined surface 2111 corresponds to a second guiding inclined surface 231 at the outer periphery of the conductive terminal 23, so as to limit the tail portion of the conductive terminal 23 corresponding to the rear end of the second guiding inclined surface 231 from passing through the receptacle 211 in the vertical direction. In another preferred embodiment, the insertion hole 211 can be any other shape capable of forming interference, such as a slot, a step, a groove, or other such mechanisms, which are not limited in the present invention.

In a preferred embodiment, the positioning post 212 has one or more slots 214 for elastic deformation, the slot 214 is in a cross shape, when the positioning post 212 is inserted into the positioning hole 223 of the terminal fixing sleeve 22, the positioning hole 223 presses the positioning post 212 from the outer periphery to the inner side, so that the positioning post 212 is elastically deformed toward the slot 214 to facilitate the locking structure 213 to pass through the positioning hole 223. The slots 214 may be arranged in other numbers or shapes (such as a straight shape, a Y shape or other shapes) according to the mechanical Tolerance (Tolerance) in addition to the above embodiments, and the present invention is not limited to the shapes, numbers, or sizes of the slots 214. In another preferred embodiment, the positioning post 212 may not be provided with the slot 214, and the volume of the locking structure 213 is designed only by the deformation tolerance of the material, so that the locking structure 213 can pass through the positioning hole 223 within the reasonable deformation tolerance range, and the end is restored to form an interference to limit the displacement of the terminal fixing kit 22, and a person or machine in this embodiment can still insert the positioning post 212 into the terminal fixing kit 22 by applying stress.

In a preferred embodiment, the positioning hole 223 has a first side inclined surface 2231 and a second side inclined surface 2232 on the upper and lower circumferences thereof, and the locking structure 213 has a first side inclined guiding surface 2131 and a second side inclined guiding surface 2132 on the upper and lower circumferences thereof. When the positioning post 212 is inserted into the positioning hole 223, the first side inclined guiding surface 2231 contacts the first side inclined surface 2231 to guide the locking structure 213 to be inserted into the positioning hole 223; when the locking structure 213 passes through the positioning hole 223, the second side guiding inclined surface 2132 corresponds to the second side inclined surface 2232, so that the positioning post 212 can be pressed inward by the second side inclined surface 2232 when the terminal fixing assembly 22 is pulled out.

The terminal positioning units 222 on the terminal fixing sleeve 22 are annularly distributed around the terminal fixing sleeve 22 for the conductive terminals 23 to be laterally inserted. The terminal positioning unit 222 may be a slot, a clip arm, a buckle, a hook, or any other mechanism that can be laterally inserted and positioned, which is not limited in the present invention.

The following description is directed to the terminal positioning unit 222 of the present invention, which is a preferred embodiment: in the present embodiment, the conductive terminal 23 has one or more grooves 232, and the terminal positioning unit 222 has one or more clamping arms 2221 corresponding to the number of the grooves 232 to clamp the grooves 232 so as to limit the vertical displacement of the conductive terminal 23 relative to the terminal positioning unit 222. In this embodiment, the number of the grooves 232 and the number of the clamping arms 2221 are two respectively for increasing the stability of the terminal positioning unit 222 for clamping the conductive terminal 23, and the number of the grooves 232 and the number of the clamping arms 2221 may be one or more, which is not limited in the present invention. In order to allow the clip arms 2221 to be clamped with a space for deformation, the terminal positioning unit 222 has a groove 2222 between adjacent clip arms 2221 in the circumferential direction. When the conductive terminal 23 is inserted into the terminal positioning unit 222, the outer diameter of the conductive terminal 23 is slightly larger than that of the terminal positioning unit 222, and the conductive terminal 23 pushes the clamping arms 2221 towards two sides, the groove 2222 provides a space for the clamping arms 2221 to elastically deform outwards, so that the clamping arms 2221 have elasticity, and when the conductive terminal 23 is completely inserted into the terminal positioning unit 222, the clamping arms 2221 elastically clamp the conductive terminal 23, so as to limit the movement of the conductive terminal 23.

The conductive terminal 23 has a cylindrical groove 233 at one end of the tail portion for inserting the wire core 31 of the cable 30, and the metal wire in the wire core 31 contacts with the metal in the cylindrical groove 233 to achieve the conduction function. The conductive terminal 23 is provided with a through hole 234 communicating with the cylindrical groove 233 on the circumferential wall surface of the tail portion, and the wire core 31 is fixed inside the through hole 234 by crimping or welding the wire core 31 in the cylindrical groove 233, so as to prevent the wire core 31 from falling off from the conductive terminal 23.

Referring to fig. 4-1 to 4-3, the assembly diagrams (a) to (b) of the terminal fixing structure of the electrical connector according to the present invention are shown as follows:

first, as shown in fig. 4-1, during assembly, the wire cores 31 of the cable 30 are fixed to the conductive terminals 23, respectively, and the fixing method may be crimping or welding. After all the wire cores 31 are respectively combined on the conductive terminals 23, as shown in fig. 4-2, the conductive terminals 23 are fixed on the terminal positioning unit 222 one by one from the side direction until all the conductive terminals 23 are combined around the terminal fixing sleeve 22. Finally, as shown in fig. 4-3, the conductive terminals 23 are aligned to the insertion holes 211 on the insulating housing 21, and the positioning posts 212 of the insulating housing 21 are inserted through the positioning holes 223 of the terminal fixing kit 22, so that the terminal fixing kit 22 is fixed on the insulating housing 21, and the conductive terminals 23 are inserted through the insertion holes 211 to expose the front ends thereof for fixing the conductive terminals 23. At this time, the conductive terminal 23 is locked by the insertion hole 211 in the plane direction, and the conductive terminal 23 passes through the terminal in the vertical direction, so that the electric connector of the invention can complete the terminal insertion without keeping an overlong wire core, thereby reducing the length of the exposed wire core and increasing the reliability of the product. Moreover, the electric connector of the invention is easier to assemble, and the production efficiency is further improved by reducing the difficulty of the manufacturing process.

The present invention has been described in detail, and it should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.

Claims

1. An electrical connector terminal-securing structure for lateral terminal positioning, comprising:

the insulating shell is provided with a plurality of jacks;

the terminal fixing kit comprises a body part and one or more terminal positioning units arranged on the circumferential wall surface of the body part; and

one or more conductive terminals, the body of which is laterally fixed on the terminal positioning unit to be combined around the body part, and one end of which passes through the insulating shell through the jack.

2. The terminal-fixing structure of claim 1, wherein the body of the conductive terminal has one or more grooves, and the terminal-positioning unit has one or more clamping arms corresponding to the number of the grooves for clamping the grooves to limit the vertical displacement of the conductive terminal relative to the terminal-positioning unit.

3. The terminal-fixing structure of claim 2, wherein there are two recesses and two clamping arms.

4. The electrical connector terminal fixing structure according to claim 3, wherein a groove is provided between the clamping arms adjacent to each other in the circumferential direction of the body portion.

5. The electrical connector terminal holding structure of claim 1, wherein said conductive terminal has a cylindrical slot at one end of said tail portion for insertion of said wire core.

6. The electrical connector terminal fixing structure of claim 5, wherein the peripheral wall surface of the tail portion of the conductive terminal is provided with a through hole communicating with the cylindrical groove.

7. The electrical connector terminal fixing structure of claim 1, wherein a first guiding inclined surface is formed on the inner periphery of the insertion hole corresponding to a second guiding inclined surface on the outer periphery of the conductive terminal to limit the tail portion of the conductive terminal corresponding to the rear end of the second guiding inclined surface to vertically pass through the insertion hole.

8. The electrical connector terminal fixing structure of claim 1, wherein a positioning post is disposed on one side of the insulating housing, a locking structure is disposed at a distal end of the positioning post, a positioning hole is disposed on the terminal fixing sleeve, the positioning post of the insulating housing is inserted into the positioning hole of the terminal fixing sleeve to allow the plurality of conductive terminals to pass through the insertion holes, respectively, and the locking structure passes through the positioning hole to fix the position of the terminal fixing sleeve.

9. The electrical connector terminal fixing structure of claim 8, wherein the positioning post has one or more slots for elastic deformation thereof.

10. A laterally positioned terminal retention assembly for retaining a conductive terminal in an electrical connector, the terminal retention assembly comprising:

a main body part, wherein one or more terminal positioning units are arranged on the circumferential wall surface of the main body part; and

and the body of the conductive terminal is fixed on the terminal positioning unit from the side direction so as to be fixed on the periphery of the body.

11. The terminal-fixing kit as claimed in claim 10, wherein the body of the conductive terminal has one or more grooves, and the terminal-positioning unit has one or more arms for holding the grooves to limit the vertical displacement of the conductive terminal relative to the terminal-positioning unit.

12. The terminal-fixing kit as claimed in claim 11, wherein there are two recesses and two clip arms.

13. The terminal-securing kit as claimed in claim 12, wherein a groove is provided between circumferentially adjacent ones of the arms of the body.

14. The terminal retention assembly of claim 10, wherein the conductive terminal has a cylindrical slot at one end of the tail portion into which the wire core is inserted.

15. The terminal holding kit according to claim 14, wherein the peripheral wall surface of the tail portion of the conductive terminal is provided with a through hole communicating with the cylindrical groove.