CN217306784U - High-current plug connector - Google Patents

Abstract

The utility model discloses a heavy current plug connector, it includes insulator, conductive terminal and metal casing, the insulator is equipped with the spliced eye, conductive terminal arranges for two rows from top to bottom, and each row of conductive terminal includes two ground terminal, is located two inboard power supply terminals of these two ground terminal and is located a plurality of signal terminal between these two power supply terminals, the metal casing cover is located the insulator outside, the power supply terminal is the formula of bending structure, and the normal pressure when guaranteeing the terminal contact avoids contact failure hidden danger, reduces terminal conductor resistance, and signal terminal is unloading formula structure, guarantees terminal contact reliability.

Description

High-current plug connector

Technical Field

The utility model relates to a connector technical field especially relates to a heavy current plug connector.

Background

The conventional plug connector has a spring plate type terminal structure disposed in a conductive terminal thereof for transmitting signals and current, and the requirements for signal transmission and current transmission between electronic devices are increased along with the miniaturization development of the electronic devices and the increase of auxiliary functions between the electronic devices. The conductive terminal of the plug connector adopts a blanking terminal structure or a bending terminal structure; the blanking type terminal structure has the problems that the positive pressure of the terminal is large or the sectional area of the terminal is small, so that the impedance of a terminal conductor cannot meet the requirement of large-current transmission, and the bent type terminal structure easily causes the problems of insufficient positive pressure of the terminal and the like.

Therefore, a new high-current plug connector is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improve the heavy current plug connector of contact reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a high-current plug connector comprises an insulator, conductive terminals and a metal shell, wherein the insulator is provided with plug holes, the conductive terminals are arranged in an upper row and a lower row, each row of conductive terminals comprises two grounding terminals, two power terminals positioned on the inner sides of the two grounding terminals and a plurality of signal terminals positioned between the two power terminals, each conductive terminal comprises a fixing part, a contact arm extending into the plug holes forwards from the fixing part and a welding pin extending out of the insulator backwards from the fixing part, the metal shell is sleeved on the outer side of the insulator, the power terminals are of a bent structure, and the signal terminals are of a blanking structure.

In a further improvement, the grounding terminal is of a bending structure.

In a further improvement, the ground terminal includes a first fixing portion, a first contact arm extending forward from the first fixing portion, and a first soldering foot extending backward from the first fixing portion, the power terminal includes a second fixing portion, a second contact arm extending forward from the second fixing portion, and a second soldering foot extending backward from the second fixing portion, the signal terminal includes a third fixing portion, a third contact arm extending forward from the third fixing portion, and a third soldering foot extending backward from the third fixing portion, and a width of the second fixing portion and/or the second soldering foot is greater than a width of the second contact arm.

In a further improvement, the width of the first fixing part and/or the first welding foot is larger than that of the first contact arm.

In a further improvement, the fixing parts of the ground terminal and the power terminal which are adjacent left and right in the conductive terminal and the same insulating block are formed by injection molding.

In a further improvement, the welding pins are arranged in an upper row and a lower row in a vertically symmetrical manner.

In a further improvement, the metal shell comprises a top wall, a bottom wall and two side walls for connecting the top wall and the bottom wall, two pairs of clamping walls extending backwards are respectively arranged at the joint of the top wall and the side walls and the joint of the bottom wall and the side walls, and the clamping walls and the welding feet are arranged together in a left-right alignment manner.

In a further improvement, the insulator is provided with a convex strip which is forwards abutted against the top wall and the bottom wall, and the convex strip is positioned between the two pairs of clamping walls.

In a further improvement, the top wall is provided with buckling holes, the rear end of the bottom wall is provided with notches, and the insulator is provided with bosses which are buckled one by one and correspond to the buckling holes and positioned in the notches.

The improved structure of the metal lock catch comprises a metal lock catch piece, wherein the lock catch piece comprises a main beam, a lock catch arm and a welding tail portion, the main beam extends forwards from the left end and the right end of the main beam, the welding tail portion extends backwards from the left end and the right end of the main beam, the main beam is fixed on an insulator through an insulating strip, slots are formed in two sides of the insulator, the front ends of the slots are communicated with the insertion holes, the lock catch arm is contained in the slots, and lock catch convex portions located in the insertion holes are formed in the front ends of the lock catch arms.

The power terminal of the high-current plug connector is of a bending structure, so that the positive pressure of the terminal during contact is ensured, the hidden danger of poor contact is avoided, and meanwhile, the resistance of a terminal conductor is reduced by adopting a high-conductivity material; because the signal terminal is limited by space, in order to improve the positive pressure of the terminal, a blanking structure is adopted, and the contact reliability of the terminal is ensured.

Drawings

Fig. 1 is a perspective view of the high-current plug connector of the present invention.

Fig. 2 is a perspective view of the high-current plug connector according to another angle.

Fig. 3 is a front view of the high current plug connector of the present invention.

Fig. 4 is a side view of the high current plug connector of the present invention.

Fig. 5 is an exploded perspective view of the high current plug connector of the present invention.

Fig. 6 is a perspective view of a terminal module of the high-current plug connector of the present invention.

Detailed Description

Referring to fig. 1 to 6, the present invention discloses a high current plug connector 100, which includes an insulator 10, a plurality of conductive terminals 20, a metal locking member 30 and a metal shell 40.

The insulator 10 includes a top plate 11, a bottom plate 12, left and right side plates 13 connecting the top plate 11 and the bottom plate 12, and a plug hole 14 between the top plate 11, the bottom plate 12, and the side plates 13. The insertion holes 14 are symmetrical left and right, up and down, and have the function of forward and reverse insertion. The top plate 11 and the bottom plate 12 are respectively provided with convex strips 111 and 121 and bosses 112 and 122 located at the front ends of the corresponding convex strips 111 and 121, each convex strip 111 and 121 is located at the rear end of the corresponding top plate 11 and bottom plate 12 and protrudes upwards from the top plate 11 and downwards from the bottom plate 12, and each boss 112 and 122 is located on the upper surface of the corresponding top plate 11 and the lower surface of the corresponding bottom plate 12. The bosses 112, 122 have forwardly facing slopes. A slot 132 is concavely provided on the outer side surface of each side plate 13, the front end of the slot 132 is penetrated through the insertion hole 14, and the rear end is penetrated through the insulator 10 rearward.

The conductive terminals 20 are arranged in two rows, each row of conductive terminals 20 includes two ground terminals 21, two power terminals 22 located between the two ground terminals 21, and a plurality of signal terminals 23 located between the two power terminals 22.

The ground terminal 21 and the power terminal 22 are of a bent structure, and the ground terminal 21 includes a first fixing portion 211, a first contact arm 211 extending forward from the first fixing portion 211, and a first soldering leg 213 extending backward from the first fixing portion 211. The power terminal 22 includes a second fixing portion 221, a second contact arm 221 extending forward from the second fixing portion 221, and a second soldering pin 223 extending rearward from the second fixing portion 221. The widths of the first fixing part 211, the second fixing part 221, the first welding pin 213 and the second welding pin 233 are greater than the widths of the corresponding first contact arm 212 and the second contact arm 222, so that the positive pressure of the terminal is improved.

An adjacent ground terminal 21 and an adjacent power terminal 22 in each row of conductive terminals 20 are fixed on the same insulating block 24, the insulating block 24 is injection molded on the corresponding first fixing portion 211 and second fixing portion 221 to form a terminal module, a groove 241 and a protrusion 242 which are mutually clamped are arranged between the two insulating blocks 24 which are adjacent up and down, the two insulating blocks 24 are fixed together, and the left and right movement of one insulating block 24 relative to the other insulating block 24 is limited.

The signal terminal 23 is of a blanking structure, is formed by blanking a metal plate, and is vertically arranged on the surface. The signal terminal 23 includes a third fixing portion 231, a third contact arm 232 extending forward from the third fixing portion 231, and a third soldering leg 233 extending backward from the third fixing portion 231. The first fixing portion 211, the second fixing portion 221, and the third fixing portion 231 constitute a fixing portion of the conductive terminal 20, the first contact arm 212, the second contact arm 222, and the third contact arm 232 constitute a contact arm of the conductive terminal, and the first solder pin 213, the second solder pin 223, and the third solder pin 233 constitute a solder pin of the conductive terminal.

The conductive terminal 20 is assembled forward on the insulator 10, the ground terminal 21 and the power terminal 22 are fixed on the insulator 10 through the insulating block 24, and the third fixing portion 231 is fixed on the insulator 10; the first contact arm 211, the second contact arm 221 and the third contact arm 231 extend forwards into the plugging hole 14 of the insulator 10 and are symmetrically arranged in an upper row and a lower row. The first welding leg 213, the second welding leg 223 and the third welding leg 233 extend backward from the insulator 10, and are arranged in two rows, one above the other, in a vertically symmetrical manner.

The latch 30 is assembled forward on the insulator 10, and the latch 30 is i-shaped and includes a main beam extending horizontally from left to right, latch arms 32 extending forward from left and right ends of the main beam, and solder tails 33 extending backward from left and right ends of the main beam 31. The main beam is fixed on the insulator 10 through an insulating strip 31, and is located between the first welding pin 213, the second welding pin 223 and the third welding pin 233 of the upper and lower rows, and the insulating strip 31 is injection molded on the main beam. Latch arm 32 is received in slot 132 of insulator 10 and has a front end with a latch protrusion 324 positioned in mating opening 14. The two solder tail portions 32 are staggered from left to right, one solder tail portion 32 is arranged with the first solder foot 213, the second solder foot 223 and the third solder foot 233 which are positioned in the upper row, and the other solder tail portion 32 is arranged with the first solder foot 213, the second solder foot 223 and the third solder foot 233 which are positioned in the lower row. The solder tail portion 32, the first solder foot 213, the second solder foot 223 and the third solder foot 233 are used for being soldered to the upper and lower surfaces of the circuit board.

The metal shell 40 is sleeved outside the insulator 10 and the locking member 30, and includes a top wall 41, a bottom wall 42, and two side walls 43 connecting the top wall 41 and the bottom wall 42, and two pairs of holding walls 44 extending backwards are respectively disposed at the connection position of the top wall 41 and the side walls 43 and the connection position of the bottom wall 42 and the side walls 43 for holding on the circuit board. The ribs 111, 121 of the insulator 10 are located between the two pairs of gripping walls 44 and abut forwardly against the top and bottom walls 41, 42, limiting the forward movement of the insulator 10. The top wall 41 has a latching hole 411 at the rear end, the bottom wall 42 has a notch 421 at the rear end, the boss 112 on the top plate 11 of the insulator 10 is latched in the latching hole 411, and the boss 122 on the bottom plate 12 is positioned in the notch 421.

The ground terminal 21 and the power terminal 22 of the high-current plug connector 100 of the present invention adopt a bending structure, and widen the terminals at the same time, so as to ensure the positive pressure when the terminals are contacted, avoid the hidden danger of poor contact, and reduce the resistance of the terminal conductor by adopting the material with high conductivity; because the signal terminal 23 is limited by space, in order to improve the positive pressure of the terminal, a blanking structure is adopted, and the contact reliability of the terminal is ensured.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims (10)

1. The utility model provides a high-current plug connector, its includes insulator, conductive terminal and metal casing, the insulator is equipped with the spliced eye, conductive terminal arranges for two rows from top to bottom, and each row of conductive terminal includes two ground terminal, is located two power supply terminals of these two ground terminal inboards and is located a plurality of signal terminal between these two power supply terminals, and each conductive terminal includes the fixed part, follows the fixed part extends forward to go into the contact arm of spliced eye and follow the fixed part extends backward the welding foot of insulator, the metal casing cover is located the insulator outside, its characterized in that: the power supply terminal is of a bending structure, and the signal terminal is of a blanking structure.

2. A high current plug connector as recited in claim 1, wherein: the grounding terminal is of a bending structure.

3. A high current plug connector as recited in claim 1, wherein: the ground terminal comprises a first fixing part, a first contact arm extending forwards from the first fixing part and a first welding foot extending backwards from the first fixing part, the power terminal comprises a second fixing part, a second contact arm extending forwards from the second fixing part and a second welding foot extending backwards from the second fixing part, the signal terminal comprises a third fixing part, a third contact arm extending forwards from the third fixing part and a third welding foot extending backwards from the third fixing part, and the width of the second fixing part and/or the width of the second welding foot are/is larger than the width of the second contact arm.

4. A high current plug connector as claimed in claim 3, wherein: the width of the first fixing part and/or the first welding foot is larger than that of the first contact arm.

5. A high current plug connector as recited in claim 1, wherein: the fixing parts of the grounding terminal and the power terminal which are adjacent left and right in the conductive terminal are formed with the same insulating block in an injection molding mode.

6. A high current plug connector according to claim 1, wherein: the welding pins are arranged in an upper row and a lower row in a vertically symmetrical mode.

7. A high current plug connector as claimed in claim 6, wherein: the metal shell comprises a top wall, a bottom wall and two side walls for connecting the top wall and the bottom wall, two pairs of clamping walls extending backwards are arranged at the joint of the top wall and the side walls and the joint of the bottom wall and the side walls respectively, and the clamping walls and the welding feet are arranged together in a left-right alignment mode.

8. A high current plug connector as recited in claim 7, wherein: the insulator is provided with a convex strip which is forwards abutted against the top wall and the bottom wall, and the convex strip is positioned between the two pairs of clamping walls.

9. A high current plug connector according to claim 8, wherein: the top wall is provided with a buckling hole, the rear end of the bottom wall is provided with a notch, and the insulators are provided with bosses which are buckled one by one and correspond to the buckling hole and the notch.

10. A high current plug connector as recited in claim 1, wherein: the metal lock catch comprises a main beam, a lock catch arm and a welding tail part, wherein the main beam extends horizontally from left to right, the lock catch arm extends forwards from the left end and the right end of the main beam respectively, the welding tail part extends backwards from the left end and the right end of the main beam, the main beam is fixed on the insulator through an insulating strip, slots are formed in two sides of the insulator, the front ends of the slots are communicated with the insertion holes, the lock catch arm is contained in the slots, and lock catch convex parts located in the insertion holes are formed in the front ends of the lock catch arms.

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