TWI863382B - Wire-end connectors, board-end connectors and their combinations - Google Patents

Abstract

A combination of a line-end connector and a board-end connector includes a line-end connector and a board-end connector. The line-end connector includes a housing with a recessed portion, a first contact, a second contact, a first wire, a second wire, and a first locking structure at least partially located in the recessed portion. The board-end connector is used to dock with the line-end connector, and the board-end connector includes a stopper, a third contact, a fourth contact, and a second locking structure. The present invention can reduce the horizontal width of the wire-end connector and the board-end connector by means of the triangular arrangement of the recessed portion, the first contact and the second contact, and the triangular arrangement of the third contact, the fourth contact and the second locking structure, and can also reserve design space for the first locking structure and the second locking structure, thereby effectively utilizing the space of the wire-end connector and the board-end connector.

Description

Wire-end connectors, board-end connectors and their combinations

The present invention relates to a wire-end connector, in particular to a wire-end connector, a board-end connector and a combination thereof.

Chinese invention patent publication number CN103872484B discloses an electrical connector assembly, in which the first contact portion of the long terminal and the first contact portion of the short terminal are inserted into the elastic cylindrical component of the corresponding first receiving terminal received in the first mounting connector. When further inserted, the first contact portion of the long terminal and the first contact portion of the short terminal respectively elastically expand the diameter of the corresponding annular constriction of the elastic cylindrical component and descend to a specified position. After the elastic expansion, each elastic cylindrical component elastically contacts the outer peripheral surface of the first contact portion and the first contact portion, and the elastic contact pressure relative to the inner peripheral surface of the receiving hole of the first receiving terminal increases. Afterwards, the intermediate connector is fixed to the first circuit substrate with screws. When the intermediate connector is to be removed from the first circuit substrate, the intermediate connector is lifted upward after removing the screws. The contact portions of the terminals are arranged horizontally, and the horizontal width of the connector designed based on this arrangement will be limited by the combined width of the two contact portions and is difficult to reduce.

Therefore, one purpose of the present invention is to provide a wire-end connector, board-end connector and combination thereof that can improve at least one shortcoming of the prior art.

Therefore, in some embodiments of the wire end connector of the present invention, it includes a housing, a first contact, a second contact, at least one first wire, at least one second wire, and a first locking structure. The housing has a mating surface and a recessed portion. The first contact is disposed in the housing and extends toward the mating surface. The second contact is disposed in the housing and extends toward the mating surface. The first wire extends into the housing and is electrically connected to the first contact. The second wire extends into the housing and is electrically connected to the second contact. The first locking structure is disposed in the housing, and the first locking structure is at least partially located in the recessed portion. The recessed portion, the first contact piece, and the second contact piece are arranged in a triangle.

In some embodiments, the butt joint surface is located at the bottom, and the housing also has a front end surface and a rear end surface facing each other, and a first side surface and a second side surface facing each other, and the front end surface, the rear end surface, the first side surface and the second side surface are formed by extending from the side edges of the butt joint surface, and the recessed portion is adjacent to the front end surface or the rear end surface.

In some embodiments, the first contact includes a first docking portion disposed in the housing and extending toward the docking surface, and a first connecting portion connected to the first docking portion; the second contact includes a second docking portion disposed in the housing and extending toward the docking surface, and a second connecting portion connected to the second docking portion; the first wire is electrically connected to the first connecting portion, and the second wire is electrically connected to the second connecting portion.

In some embodiments, the first buckle structure, the first contact piece, and the second contact piece are arranged in a triangle.

In some embodiments, the recessed portion is adjacent to a corner between the front end face and the second side face, the first contact member is adjacent to a corner between the front end face and the first side face, and the second contact member is adjacent to a corner between the rear end face and the second side face.

In some embodiments, the housing is formed by overmolding.

In some embodiments, the housing includes a shell and a cover that are combined with each other.

In some embodiments, the housing has two through grooves for accommodating the first contact member and the second contact member respectively, each through groove is provided with a stop edge located at the bottom and adjacent to the abutting surface, and an elastic stop arm extending from the top into the through groove, the stop edges of the two through grooves are used to stop a bottom edge of the first contact member and a bottom edge of the second contact member respectively, and the elastic stop arms of the two through grooves are used to stop an upper stop surface of the first contact member and an upper stop surface of the second contact member respectively.

In some embodiments, the first docking portion includes a barrel body and a cage-shaped contact body disposed in the barrel body, and the second docking portion includes a barrel body and a cage-shaped contact body disposed in the barrel body.

In some embodiments, the cage-shaped contact bodies of the first docking portion and the second docking portion each have an annular head and an elastic contact sheet extending from the annular head.

In some embodiments, the first buckle structure has a cantilever extending downward, and a first buckle unit disposed on the cantilever.

In some embodiments, the first buckle structure has an opening that passes through from top to bottom.

In some embodiments, the first buckle structure has an opening that passes through the top and bottom, and a screw that is rotatably inserted into the opening.

In some embodiments, the projections of the first contact member and the second contact member on the front end surface partially overlap with each other.

In some embodiments, the projections of the first contact element and the second contact element on the first side surface partially overlap each other.

In some embodiments, the first wire and the second wire extend from the rear end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion respectively.

In some embodiments, the housing further has an upper end surface spaced opposite to the mating surface, and the first wire and the second wire extend from the upper end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion, respectively.

In some embodiments, the first connecting portion and the second connecting portion are in a plate shape, and the first conductive wire and the second conductive wire are electrically connected to the opposite sides of the first connecting portion and the second connecting portion, respectively.

Therefore, in some embodiments of the board-end connector of the present invention, it includes a stop seat, a third contact, a fourth contact, and a second lock structure. The third contact includes a third connection portion disposed on the stop seat, and a third docking portion formed by the third connection portion extending upward. The fourth contact includes a fourth connection portion disposed on the stop seat, and a fourth docking portion formed by the fourth connection portion extending upward. The second lock structure is disposed on the stop seat. The third contact, the fourth contact, and the second lock structure are arranged in a triangle.

In some embodiments, the stopper is a circuit board, the third connection portion is electrically connected to the circuit board, and the fourth connection portion is electrically connected to the circuit board.

In some embodiments, the third contact also has a stopper portion that stops at the top surface of the circuit board, and the fourth contact also has a stopper portion that stops at the top surface of the circuit board.

In some embodiments, the third contact member also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling, and the fourth contact member also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling.

In some embodiments, the circuit board has a rectangular area, a first corner and a second corner located diagonally opposite to each other in the rectangular area, and a third corner in the rectangular area; the third contact is disposed at the first corner; the fourth contact is disposed at the second corner and is arranged obliquely with the third contact; and the second locking structure is disposed at the third corner.

In some embodiments, the second buckle structure includes a base extending upward and a second buckle unit disposed on the base.

In some embodiments, the second locking structure includes a base extending upward and a screw hole disposed on the base.

In some embodiments, the stopper is a rectangular body having two through holes passing through the body up and down, respectively, and the third docking portion and the fourth docking portion extend upward from the two through holes, respectively.

In some embodiments, the second latch structure is integrally formed from the base.

In some embodiments, the third contact member also has an interference rib for interfering with the inner wall surface of the corresponding through hole, and the fourth contact member also has an interference rib for interfering with the inner wall surface of the corresponding through hole.

In some embodiments, the third contact member also has a stopper portion that stops at the top surface of the base body, and the fourth contact member also has a stopper portion that stops at the top surface of the base body.

In some embodiments, the third docking portion and the fourth docking portion are cylindrical.

Therefore, in some embodiments, the combination of the wire-end connector and the board-end connector of the present invention includes a wire-end connector and a board-end connector. The wire-end connector includes an outer shell, a first contact, a second contact, at least one first wire, at least one second wire, and a first locking structure. The outer shell has a mating surface and a recessed portion. The first contact is disposed in the outer shell and extends toward the mating surface and includes a first mating portion. The second contact is disposed in the outer shell and extends toward the mating surface and includes a second mating portion. The first wire extends into the outer shell and is electrically connected to the first contact. The second wire extends into the outer shell and is electrically connected to the second contact. The first locking structure is disposed on the outer shell, and the first locking structure is at least partially located in the recessed portion. The recessed portion and the first contact and the second contact are arranged in a triangular shape. The board end connector includes a stop seat, a third contact, a fourth contact, and a second locking structure. The third contact includes a third connecting portion disposed on the stop seat, and a third docking portion extending upward from the third connecting portion and used to dock with the first docking portion. The fourth contact includes a fourth connecting portion disposed on the stop seat, and a fourth docking portion extending upward from the fourth connecting portion and used to dock with the second docking portion. The second locking structure is disposed on the stop seat, and the second locking structure is used to lock with the first locking structure. The third contact piece, the fourth contact piece and the second locking structure are arranged in a triangle.

In some embodiments, the butt joint surface is located at the bottom, and the housing also has a front end surface and a rear end surface facing each other, and a first side surface and a second side surface facing each other, and the front end surface, the rear end surface, the first side surface and the second side surface are formed by extending from the side edges of the butt joint surface, and the recessed portion is adjacent to the front end surface or the rear end surface.

In some embodiments, the first contact includes the first docking portion disposed in the housing and extending toward the docking surface, and a first connecting portion connected to the first docking portion; the second contact includes the second docking portion disposed in the housing and extending toward the docking surface, and a second connecting portion connected to the second docking portion; the first wire is electrically connected to the first connecting portion, and the second wire is electrically connected to the second connecting portion.

In some embodiments, the first buckle structure, the first contact piece, and the second contact piece are arranged in a triangle.

In some embodiments, the recessed portion is adjacent to a corner between the front end face and the second side face, the first contact piece is adjacent to a corner between the front end face and the first side face, and the second contact piece is adjacent to a corner between the rear end face and the second side face.

In some embodiments, the housing is formed by overmolding.

In some embodiments, the housing includes a shell and a cover that are combined with each other.

In some embodiments, the housing has two through grooves for accommodating the first contact member and the second contact member respectively, each through groove is provided with a stop edge located at the bottom and adjacent to the abutting surface, and an elastic stop arm extending from the top into the through groove, the stop edges of the two through grooves are used to stop a bottom edge of the first contact member and a bottom edge of the second contact member respectively, and the elastic stop arms of the two through grooves are used to stop an upper stop surface of the first contact member and an upper stop surface of the second contact member respectively.

In some embodiments, the first docking portion includes a barrel and a cage-shaped contact body disposed in the barrel, and the second docking portion includes a barrel and a cage-shaped contact body disposed in the barrel; the third docking portion and the fourth docking portion are cylindrical and are respectively used to electrically connect to the cage-shaped contact body of the first docking portion and the cage-shaped contact body of the second docking portion.

In some embodiments, the cage-shaped contact bodies of the first docking portion and the second docking portion each have an annular head and an elastic contact sheet extending from the annular head.

In some embodiments, the first buckle structure has a cantilever extending downward and a first buckle unit disposed on the cantilever; the second buckle structure includes a base extending upward and a second buckle unit disposed on the base and used to buckle with the first buckle unit.

In some embodiments, the second locking structure includes a base extending upward and a screw hole disposed on the base, and the first locking structure has an opening passing through the top and bottom, and a screw rotatably passing through the opening and used to be screwed into the screw hole.

In some embodiments, the stopper is a circuit board, the third connection portion is electrically connected to the circuit board, and the fourth connection portion is electrically connected to the circuit board.

In some embodiments, the third contact member also has a stopper portion that stops at the top surface of the circuit board, and the fourth contact member also has a stopper portion that stops at the top surface of the circuit board.

In some embodiments, the third contact member also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling, and the fourth contact member also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling.

In some embodiments, the stopper is a body having two through holes passing through the body up and down, respectively, the third docking portion and the fourth docking portion extend upward from the two through holes, respectively, and the second buckle structure is formed integrally with the body.

In some embodiments, the third contact member also has a stopper portion that stops at the top surface of the base body, and the fourth contact member also has a stopper portion that stops at the top surface of the base body.

In some embodiments, the third contact member also has an interference rib for interfering with the inner wall surface of the corresponding through hole, and the fourth contact member also has an interference rib for interfering with the inner wall surface of the corresponding through hole.

In some embodiments, the projections of the first contact member and the second contact member on the front end surface partially overlap each other.

In some embodiments, the projections of the first contact element and the second contact element on the first side surface partially overlap each other.

In some embodiments, the first wire and the second wire extend from the rear end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion respectively.

In some embodiments, the housing further has an upper end surface spaced opposite to the mating surface, and the first wire and the second wire extend from the upper end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion, respectively.

In some embodiments, the first connecting portion and the second connecting portion are in a plate shape, and the first conductive wire and the second conductive wire are electrically connected to the opposite sides of the first connecting portion and the second connecting portion, respectively.

In some embodiments, the wire end connector further comprises a supporting rib disposed in the recessed portion of the housing, the supporting rib being capable of supporting the first locking structure, and the second locking structure of the board end connector comprises an avoidance groove corresponding to the supporting rib, the avoidance groove being used to avoid the supporting rib when the first locking structure and the second locking structure are locked with each other.

The present invention can reduce the horizontal width of the wire-end connector and the board-end connector by arranging the first contact and the second contact obliquely and forming a triangle with the first lock structure, and the third contact and the fourth contact obliquely, and can also reserve design space for the first lock structure and the second lock structure, thereby effectively utilizing the space of the wire-end connector and the board-end connector, and at the same time, the size of the first lock structure and the second lock structure can be designed to be larger to increase their structural strength.

1: Wire end connector

11: Shell

111: Butt joint

111a: Plane part

112: Upper end surface

113: Front end

114: Rear end face

115: First side

116: Second side

117: Shell

117a: buckle hole

117b: Through slot

117c:Blocking edge

117d: Elastic stop arm

117e: Cable hole

118: Cover

118a: buckle the bullet arm

118b: Cable hole

119: Depression

12: First contact piece

121: First docking part

121a: Barrel body

121b: Tubular components

121c: Cover-shaped component

121d: Cage-shaped contact body

121e: Ring-shaped head

121f: Elastic contact piece

121g: bottom edge

121h: Upper blocking surface

122: First connection part

13: Second contact piece

131: Second docking part

131a: Barrel body

131b: Tubular components

131c: Cover-shaped component

131d: Cage-shaped contact body

131e: Ring-shaped head

131f: Elastic contact piece

131g: bottom edge

131h: Upper blocking surface

132: Second connection part

14: Wire

141: Line body

15: First buckle structure

151: hanging arms

152: First buckle unit

153: Open mouth

154: Screws

16: Lean against the ribs

2: Board-side connector

21: Circuit board

210: welding hole

211: Rectangular area

211a: First corner

211b: Second corner

211c: The third corner

22: Third contact

221: Third connection part

222: The third docking part

223: Interference ribs

224: Raised convex part

225: Stopper

23: Fourth contact

231: Fourth connection part

232: Fourth docking section

233: Interference ribs

234: Raised convex part

235: Stopper

24: Seat

241: Perforation

25: Second buckle structure

251: Base

252: Second buckle unit

253: screw hole

254: Avoidance slot

26: Locking screw

D1: Up and down direction

D2: front and back direction

D3: Left and right direction

Other features and effects of the present invention will be clearly presented in the implementation method with reference to the drawings, wherein: FIG1 is a three-dimensional diagram of a first embodiment of the combination of the line-end connector and the board-end connector of the present invention.

FIG2 is a three-dimensional exploded view of the first embodiment; FIG3 and FIG4 are two three-dimensional exploded views of the first embodiment in FIG2 viewed from other viewing angles; FIG4 is a three-dimensional exploded view of the first embodiment in FIG2 viewed from another viewing angle; FIG5 is a further three-dimensional exploded view of the first embodiment; FIG6 is a three-dimensional exploded view of the first embodiment in FIG5 viewed from another viewing angle; FIG7 is a top view of the wire end connector of the first embodiment, in which the wires of the wire end connector and the cover of the housing are omitted; FIG8 is a cross-sectional view taken along the A-A line in FIG7; FIG9 is a top view of the board end connector of the first embodiment; FIG10 is a three-dimensional view of the third contact of the board end connector of the first embodiment; FIG11 is a cross-sectional view of the A cross-sectional view of the first embodiment; FIG. 12 is a three-dimensional view of a board-end connector of a second embodiment of the present invention; FIG. 13 is a three-dimensional exploded view of a third embodiment of the present invention; FIG. 14 is a three-dimensional exploded view of the third embodiment in FIG. 13 viewed from another perspective; FIG. 15 is a three-dimensional exploded view of a fourth embodiment of the present invention; FIG. 16 is a three-dimensional view of a line-end connector of a fifth embodiment of the present invention; FIG. 17 is a three-dimensional exploded view of the line-end connector of the fifth embodiment; FIG. 18 is a three-dimensional view of a board-end connector of a sixth embodiment of the present invention; FIG. 19 is a three-dimensional exploded view of the board-end connector of the sixth embodiment; FIG. 20 is a three-dimensional exploded view of the sixth embodiment in FIG. 19 viewed from another perspective.

FIG. 21 is a three-dimensional exploded view of a seventh embodiment of the present invention; FIG. 22 is a three-dimensional exploded view of the seventh embodiment in FIG. 21 viewed from another angle; FIG. 23 is a side view schematic diagram of the wire end connector of the seventh embodiment; and FIG. 24 is a cross-sectional view of the seventh embodiment, in which the wire end connector and the board end connector of the seventh embodiment are connected to each other.

Before the present invention is described in detail, it should be noted that in the following description, similar components are represented by the same number.

Referring to Figures 1 to 4, a first embodiment of a combination of a line-end connector 1 and a board-end connector 2 of the present invention includes a line-end connector 1 and a board-end connector 2.

Referring to FIG. 2 and FIG. 4 to FIG. 6 , the wire end connector 1 includes a housing 11, a first contact 12, a second contact 13, two wires 14, and a first locking structure 15.

The housing 11 is made of an insulating material and has a butt joint surface 111 and an upper end surface 112 respectively located at the bottom and the top and spaced opposite to each other along a vertical direction D1 (the direction indicated by the arrow is upward, and the reverse direction is downward), a front end surface 113 and a rear end surface 114 opposite to each other along a front-rear direction D2 (the direction indicated by the arrow is front, and the reverse direction is rear), and a first side surface 115 and a second side surface 116 opposite to each other along a left-right direction D3 (the direction indicated by the arrow is right, and the reverse direction is left). The front end surface 113, the rear end surface 114, the first side surface 115 and the second side surface 116 are formed by extending from the side edges of the butt joint surface 111 along the vertical direction D1. In the first embodiment, the outer shell 11 includes a shell 117 and a cover 118 that are combined with each other along the up-down direction D1. For example, the shell 117 has two buckle holes 117a, and the cover 118 has two buckle spring arms 118a that are buckled to the two buckle holes 117a.

3 and 5 to 8 , the first contact member 12 is disposed in the housing 11 and extends along the up-down direction D1 and is adjacent to the corner of the front end surface 113 and the first side surface 115. The first contact member 12 includes a first docking portion 121 disposed in the housing 11 and extending toward the docking surface 111, and a first connecting portion 122 disposed in the housing 11 and connected to the first docking portion 121. The second contact 13 is disposed in the housing 11 extending along the up-down direction D1 and adjacent to the corner of the rear end surface 114 and the second side surface 116 and arranged obliquely with the first contact 12. The second contact 13 includes a second abutting portion 131 disposed in the housing 11 and extending toward the abutting surface 111, and a second connecting portion 132 in the housing 11 and connected to the second abutting portion 131. In the first embodiment, the projections of the first contact 12 and the second contact 13 on the front end surface 113 partially overlap each other, and the projections of the first contact 12 and the second contact 13 on the first side surface 115 also partially overlap each other.

Specifically, the first docking portion 121 includes a barrel 121a and a cage-shaped contact body 121d disposed in the barrel 121a. The barrel 121a includes a tubular member 121b located at the bottom and a cover member 121c disposed at the top of the tubular member 121b and sandwiching the cage-shaped contact body 121d. It has an annular head portion 121e sandwiched by the tubular component 121b and the cover-shaped component 121c and a plurality of elastic contact pieces 121f extending downward from the annular head portion 121e toward the mating surface 111. In addition, the first connecting portion 122 is plate-shaped and is integrally extended upward from the top surface of the cover-shaped component 121c of the first mating portion 121. The second docking portion 131 includes a barrel body 131a and a cage-shaped contact body 131d disposed in the barrel body 131a. The barrel body 131a includes a tubular component 131b located at the bottom and a cover component 131c disposed at the top of the tubular component 131b and sandwiching the cage-shaped contact body 131d. The cage-shaped contact body 131d has a The tubular member 131b and the cover member 131c sandwich an annular head 131e and a plurality of elastic contact pieces 131f extending downward from the annular head 131e toward the mating surface 111. In addition, the second connecting portion 132 is plate-shaped and integrally extends upward from the top surface of the cover member 131c of the second mating portion 131.

The housing 117 has two through slots 117b extending along the up-down direction D1 to the mating surface 111 and accommodating the first contact member 12 and the second contact member 13 respectively. Each through slot 117b is provided with a stopper 117c located at the bottom and adjacent to the mating surface 111, and an elastic stopper arm 117d extending from the top into the through slot 117b. The blocking edge 117c of the two through grooves 117b is used to block a bottom edge 121g of the barrel 121a of the first contact member 12 and a bottom edge 131g of the barrel 131a of the second contact member 13, and the elastic blocking arm 117d of the two through grooves 117b is used to block an upper blocking surface 121h of the barrel 121a of the first contact member 12 and an upper blocking surface 131h of the barrel 131a of the second contact member 13.

The two wires 14 extend from two wire holes 117e on the rear end surface 114 of the shell 117 of the shell 11 to the two through grooves 117b of the shell 11, and are electrically connected to the first connecting portion 122 and the second connecting portion 132, respectively. Specifically, the two wires 14 are electrically connected to the opposite sides of the plate-shaped first connecting portion 122 and the plate-shaped second connecting portion 132. It should be noted that in the first embodiment, each wire 14 is composed of two wire bodies 141, but the number of wire bodies 141 in each wire 14 can be adjusted according to demand. The wire 14 can be composed of only one thicker wire body 141, or can be composed of three or more thinner wire bodies 141 to make the wire 14 more flexible as a whole, which is not limited to the first embodiment.

The first buckle structure 15 is disposed on the housing 11 and is located at a corner adjacent to the front end face 113 and the second side face 116. The housing 11 has a recessed portion 119 located at a corner adjacent to the front end face 113 and the second side face 116. The first buckle structure 15 is formed integrally with the housing 11 and is located in the recessed portion 119, so that the first buckle structure 15 and the first contact member 12 and the second contact member 13 are arranged in a triangle. It should be noted that in other embodiments, the first buckle structure 15 may also be at least partially located in the recessed portion 119. In addition, the wire end connector 1 has a flat surface 111a located at the corner of the rear end surface 114 and the first side surface 115, and the flat surface 111a is located away from the recessed portion 119 and on the opposite side of the recessed portion 119. The flat surface 111a is adjacent to the first contact 121 and the second contact 131 of the second contact 13, and is also arranged in a triangular shape with the first contact 12 and the second contact 13. The flat surface 111a can be pressed against the board end connector 2, so that the relative positions of the wire end connector 1 and the board end connector 2 are more stable and less likely to shake when they are connected.

Referring to Figures 2, 4 to 6 and 9, the board-end connector 2 is used to connect with the line-end connector 1 along the up-down direction D1, and the board-end connector 2 includes a circuit board 21, a third contact 22, a fourth contact 23, a base 24, and a second locking structure 25.

The circuit board 21 has a rectangular area 211 facing upward, a first corner 211a and a second corner 211b located diagonally opposite to each other in the rectangular area 211, and a third corner 211c in the rectangular area 211. It should be noted that, although in the first embodiment, the circuit board 21 is rectangular and the entire circuit board 21 is located in the rectangular area 211, in other embodiments, the circuit board 21 may also be in other shapes, and the rectangular area 211 may be only a part of the circuit board 21.

The third contact 22 is provided at the first corner 211a extending along the up-down direction D1, and includes a third connecting portion 221 electrically connected to the circuit board 21, and a third abutting portion 222 extending upward from the third connecting portion 221 and used to abut the first abutting portion 121. The fourth contact 23 is provided at the second corner 211b extending along the up-down direction D1 and is arranged obliquely with the third contact 22, and includes a fourth connecting portion 231 electrically connected to the circuit board 21, and a fourth abutting portion 232 extending upward from the fourth connecting portion 231 and used to abut the second abutting portion 131. Specifically, the third docking portion 222 and the fourth docking portion 232 are cylindrical and are respectively used to be inserted from the docking surface 111 into the two through slots 117b of the outer shell 11 of the wire end connector 1 to be electrically connected to the elastic contact piece 121f of the cage-shaped contact body 121d of the first docking portion 121 and the elastic contact piece 131f of the cage-shaped contact body 131d of the second docking portion 131.

The base 24 is rectangular and is disposed on the rectangular area 211 of the circuit board 21. The base 24 has two through holes 241 formed vertically and respectively at the first corner 211a and the second corner 211b of the circuit board 21. The third abutting portion 222 and the fourth abutting portion 232 extend upward from the two through holes 241. Specifically, the base 24 and the circuit board 21 are locked to each other by two locking screws 26. 6 and 10 , in the present embodiment, the third connection portion 221 and the fourth connection portion 231 are a welding foot, which is passed through and welded to the welding hole 210 of the circuit board 21, and the third contact 22 and the fourth contact 23 respectively have a stop portion 225 and a stop portion 235 for stopping at the top surface of the seat body 24. In addition, it should be noted that, in the first embodiment, the third contact 22 also has a plurality of interference ribs 223 adjacent to the third connecting portion 221 and used to interfere with the corresponding inner wall surface of the through hole 241, and a plurality of raised protrusions 224 adjacent to the third connecting portion 221 and used to stop at the top surface of the circuit board 21 to raise the space for filling with solder; the fourth contact 23 also has a plurality of interference ribs 233 adjacent to the fourth connecting portion 231 and used to interfere with the corresponding inner wall surface of the through hole 241, and a plurality of raised protrusions 234 adjacent to the fourth connecting portion 231 and used to stop at the top surface of the circuit board 21 to raise the space for filling with solder. It should be noted that the function of the raised protrusion 224 and the raised protrusion 234 is to raise the space for solder filling to increase the welding strength. In other embodiments, the raised protrusion 224 and the raised protrusion 234 can also be eliminated.

Referring to FIG. 2, FIG. 4 to FIG. 6 and FIG. 11, the second buckle structure 25 is disposed at the third corner 211c and extends upward. In the first embodiment, it is formed integrally with the base 24. The second buckle structure 25 is used to be buckled with the first buckle structure 15. The first buckle structure 15 has a cantilever 151 extending downward and a first buckle unit 152 disposed at the bottom of the cantilever 151. The second buckle structure 25 includes a base 251 extending upward from the base 24 and a second buckle unit 252 disposed at the top of the base 251 and buckled with the first buckle unit 152. The first buckle unit 152 can be a concave portion, for example, and the second buckle unit 252 can be a convex portion that buckles with the concave portion, but vice versa is also possible, and is not limited to the first embodiment.

As for the wire-end connector 1 and the board-end connector 2 as a whole, the first contact 12 and the second contact 13 arranged obliquely, and the third contact 22 and the fourth contact 23 arranged obliquely, can reduce the width of the wire-end connector 1 and the board-end connector 2 in the horizontal direction (the front-to-back direction D2 and the left-to-right direction D3), and can also reserve design space for the first lock structure 15 and the second lock structure 25, thereby effectively utilizing the space of the wire-end connector 1 and the board-end connector 2, and at the same time, the size of the first lock structure 15 and the second lock structure 25 can be designed to be larger to increase their structural strength.

Referring to FIG. 12 , the second embodiment of the combination of the wire-end connector 1 and the board-end connector 2 of the present invention is different from the first embodiment in that the base 251 of the second locking structure 25 is directly disposed on the third corner 211c of the circuit board 21, and the base 251 of the second locking structure 25 is disposed on the circuit board 21 by way of example but not limited to assembly. In the second embodiment, the seat 24 and the interference ribs 223 of the third contact 22 and the interference ribs 233 of the fourth contact 23 that cooperate with the seat 24 are eliminated, and the raised protrusions 224 and the raised protrusions 234 are formed at the bottom of the stopper 225 and the stopper 235, respectively. In addition, it should be noted that in a variation of the second embodiment, the raised protrusion 224 and the raised protrusion 234 can be eliminated, and the stopper 225 and the stopper 235 stop on the top surface of the circuit board 21.

Referring to Figures 13 and 14, the third embodiment of the combination of the wire-end connector 1 and the board-end connector 2 of the present invention is different from the second embodiment in that the housing 11 is integrally formed by overmolding. The second locking structure 25 includes the base 251 inserted into the circuit board 21 and extending upward, and a screw hole 253 provided at the top of the base 251. The first locking structure 15 has an opening 153 penetrating vertically, and the opening 153 and the screw hole 253 are used to be locked and fixed by a screw 154 (not shown) so that the first locking structure 15 and the second locking structure 25 are locked with each other.

Referring to FIG. 15 , the fourth embodiment of the combination of the wire-end connector 1 and the board-end connector 2 of the present invention is different from the third embodiment in that the first locking structure 15 also has a screw 154 rotatably inserted through the opening 153 and screwed into the screw hole 253. This can prevent the screw 154 from being lost and increase the convenience of the locking.

Referring to Figures 16 and 17, the fifth embodiment of the combination of the wire end connector 1 and the board end connector 2 of the present invention is different from the first embodiment in that the two wires 14 extend from the two wire holes 118b on the upper end surface 112 of the cover 118 of the housing 11 to the two through slots 117b of the housing 11, and are electrically connected to the first connecting portion 122 and the second connecting portion 132, respectively.

Referring to Figures 18 to 20, the sixth embodiment of the combination of the wire-end connector 1 and the board-end connector 2 of the present invention is different from the first embodiment in that the seat 24 and its through hole 241, the third contact 22 and the fourth contact 23 are higher in the vertical direction D1.

Referring to Figures 21 to 24, one of the combinations of the wire-end connector 1 and the board-end connector 2 of the present invention. The seventh embodiment is different from the first embodiment in that the wire-end connector 1 further has a supporting rib 16 disposed in the recessed portion 119 of the housing 11 and located behind the cantilever 151 of the first latch structure 15. The supporting rib 16 can provide the lower section of the cantilever 151 of the first latch structure 15 with abutment when the lower section of the cantilever 151 of the first latch structure 15 is displaced backward (see Figure 23), so as to prevent the first latch structure 15 from being excessively deformed and damaged. The second locking structure 25 of the board-end connector 2 also includes an avoidance groove 254 formed on the base 251 and corresponding to the abutting rib 16. The avoidance groove 254 is used to avoid the abutting rib 16 when the first locking structure 15 and the second locking structure 25 are locked with each other.

In summary, the present invention can reduce the horizontal width of the wire-end connector 1 and the board-end connector 2 by means of the first contact 12 and the second contact 13 arranged diagonally and arranged in a triangle with the first locking structure 15, and the third contact 22 and the fourth contact 23 arranged diagonally, and can also reserve design space for the first locking structure 15 and the second locking structure 25, thereby effectively utilizing the space of the wire-end connector 1 and the board-end connector 2, and at the same time, the size of the first locking structure 15 and the second locking structure 25 can be designed to be larger to increase their structural strength.

However, the above is only an example of the implementation of the present invention, and it cannot be used to limit the scope of the implementation of the present invention. All simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the patent specification are still within the scope of the patent of the present invention.

1: Wire end connector

11: Shell

111: Butt joint

112: Upper end surface

113: Front end

114: Rear end face

115: First side

116: Second side

117: Shell

117a: buckle hole

117b: Through slot

117d: Elastic stop arm

117e: Cable hole

118: Cover

118a: buckle the bullet arm

119: Depression

12: First contact piece

121: First docking part

121a: Barrel body

121b: Tubular components

121c: Cover-shaped component

121d: Cage-shaped contact body

121e: Ring-shaped head

121f: Elastic contact piece

121g: bottom edge

121h: Upper blocking surface

122: First connection part

13: Second contact piece

131: Second docking part

131a: Barrel body

131b: Tubular components

131c: Cover-shaped component

131d: Cage-shaped contact body

131e: Ring-shaped head

131f: Elastic contact piece

131g: bottom edge

131h: Upper blocking surface

132: Second connection part

14: Wire

141: Line body

15: First buckle structure

151: hanging arms

2: Board-side connector

21: Circuit board

210: welding hole

211: Rectangular area

211a: First corner

211b: Second corner

211c: The third corner

22: Third contact

221: Third connection part

222: The third docking part

225: Stopper

23: Fourth contact

231: Fourth connection part

232: Fourth docking section

235: Stopper

24: Seat

241: Perforation

25: Second buckle structure

251: Base

252: Second buckle unit

26: Locking screw

D1: Up and down direction

D2: front and back direction

D3: Left and right direction

Claims (54)

A wire end connector includes: a housing having a mating surface and a recessed portion; a first contact disposed in the housing and extending toward the mating surface; a second contact disposed in the housing and extending toward the mating surface; at least one first wire extending into the housing and electrically connected to the first contact; at least one second wire extending into the housing and electrically connected to the second contact; a first locking structure disposed in the housing, the first locking structure being at least partially located in the recessed portion, wherein the recessed portion and the first contact and the second contact are arranged in a triangle. The wire end connector as described in claim 1, wherein the mating surface is located at the bottom, the housing also has a front end surface and a rear end surface facing each other, and a first side surface and a second side surface facing each other, the front end surface, the rear end surface, the first side surface and the second side surface are formed by extending from the respective side edges of the mating surface, and the recessed portion is adjacent to the front end surface or the rear end surface. The wire end connector as described in claim 2, wherein the first contact includes a first abutting portion disposed in the housing and extending toward the abutting surface, and a first connecting portion connected to the first abutting portion; the second contact includes a second abutting portion disposed in the housing and extending toward the abutting surface, and a second connecting portion connected to the second abutting portion; the first wire is electrically connected to the first connecting portion, and the second wire is electrically connected to the second connecting portion. The wire end connector as described in claim 1, wherein the first locking structure and the first contact piece and the second contact piece are arranged in a triangle. The wire end connector as described in claim 2, wherein the recessed portion is adjacent to the corner between the front end face and the second side face, the first contact piece is adjacent to the corner between the front end face and the first side face, and the second contact piece is adjacent to the corner between the rear end face and the second side face. A wire end connector as described in claim 1, wherein the outer shell is formed by overmolding. A wire end connector as described in claim 1, wherein the outer shell includes a shell and a cover that are combined with each other. The wire end connector as described in claim 7, wherein the housing has two through grooves for accommodating the first contact and the second contact respectively, each through groove is provided with a stop edge located at the bottom and adjacent to the abutting surface, and an elastic stop arm extending from the top into the through groove, the stop edges of the two through grooves are used to stop a bottom edge of the first contact and a bottom edge of the second contact respectively, and the elastic stop arms of the two through grooves are used to stop an upper stop surface of the first contact and an upper stop surface of the second contact respectively. The wire end connector as described in claim 3, wherein the first docking portion includes a barrel body and a cage-shaped contact body disposed in the barrel body, and the second docking portion includes a barrel body and a cage-shaped contact body disposed in the barrel body. As described in claim 9, the wire end connector, wherein the cage-shaped contact body of the first docking portion and the second docking portion each has an annular head and an elastic contact sheet extending from the annular head. The wire end connector as described in claim 1, wherein the first locking structure has a cantilever extending downward, and a first locking unit disposed on the cantilever. A wire end connector as described in claim 1, wherein the first locking structure has an opening that passes through vertically. The wire end connector as described in claim 1, wherein the first locking structure has an opening passing through the top and bottom, and a screw rotatably passing through the opening. A wire end connector as described in claim 2, wherein the projections of the first contact and the second contact on the front end surface partially overlap each other. A wire end connector as described in claim 2, wherein the projections of the first contact and the second contact on the first side surface partially overlap each other. The wire end connector as described in claim 3, wherein the first wire and the second wire extend from the rear end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion respectively. As described in claim 3, the outer shell also has an upper end surface spaced opposite to the mating surface, and the first wire and the second wire extend from the upper end surface into the outer shell and are electrically connected to the first connecting portion and the second connecting portion respectively. The wire end connector as described in claim 3, wherein the first connecting portion and the second connecting portion are in a plate shape, and the first wire and the second wire are electrically connected to the opposite sides of the first connecting portion and the second connecting portion, respectively. A board-end connector includes: a stop seat; a third contact, including a third connection portion provided on the stop seat, and a third mating portion formed by the third connection portion extending upward; a fourth contact, including a fourth connection portion provided on the stop seat, and a fourth mating portion formed by the fourth connection portion extending upward; and a second locking structure provided on the stop seat, wherein the third contact, the fourth contact and the second locking structure are arranged in a triangle. The board-end connector as described in claim 19, wherein the stopper is a circuit board, the third connection portion is electrically connected to the circuit board, and the fourth connection portion is electrically connected to the circuit board. The board-end connector as described in claim 20, wherein the third contact also has a stopper portion that stops at the top surface of the circuit board, and the fourth contact also has a stopper portion that stops at the top surface of the circuit board. The board-end connector as described in claim 20, wherein the third contact also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling, and the fourth contact also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling. The board-end connector as claimed in claim 20, wherein the circuit board has a rectangular area, a first corner and a second corner located diagonally opposite to each other in the rectangular area, and a third corner in the rectangular area; the third contact is disposed at the first corner; the fourth contact is disposed at the second corner and is arranged obliquely with the third contact; the second locking structure is disposed at the third corner. The board end connector as described in claim 19, wherein the second locking structure includes a base extending upward and a second locking unit disposed on the base. The board end connector as described in claim 19, wherein the second locking structure includes a base extending upward and a screw hole provided on the base. As described in claim 19, the board end connector, wherein the stop seat is a rectangular seat body, the seat body has two through holes passing through the upper and lower parts respectively, and the third docking part and the fourth docking part extend upward from the two through holes respectively. A board end connector as described in claim 26, wherein the second locking structure is formed integrally with the base. The board-end connector as described in claim 26, wherein the third contact also has an interference rib for interfering with the inner wall surface of the corresponding through hole, and the fourth contact also has an interference rib for interfering with the inner wall surface of the corresponding through hole. The board end connector as described in claim 26, wherein the third contact also has a stopper portion that stops at the top surface of the base body, and the fourth contact also has a stopper portion that stops at the top surface of the base body. The board end connector as described in claim 19, wherein the third docking portion and the fourth docking portion are cylindrical. A combination of a wire-end connector and a board-end connector comprises: a wire-end connector comprising: an outer shell having a mating surface and a recessed portion; a first contact disposed in the outer shell and extending toward the mating surface and comprising a first mating portion; a second contact disposed in the outer shell and extending toward the mating surface and comprising a second mating portion; at least one first wire extending into the outer shell and electrically connected to the first contact; at least one second wire extending into the outer shell and electrically connected to the second contact; a first locking structure disposed in the outer shell, the first locking structure being at least partially located in the recessed portion, wherein the recessed portion and the first contact and the second contact are arranged in a triangle. and a board-end connector for docking with the wire-end connector, and the board-end connector includes: a stop seat; a third contact, including a third connection portion provided on the stop seat, and a third docking portion formed by the third connection portion extending upward and docking with the first docking portion; a fourth contact, including a fourth connection portion provided on the stop seat, and a fourth docking portion formed by the fourth connection portion extending upward and docking with the second docking portion; and a second lock structure provided on the stop seat, the second lock structure being used to lock with the first lock structure, wherein the third contact, the fourth contact and the second lock structure are arranged in a triangle. As described in claim 31, the combination of a wire-end connector and a board-end connector, wherein the mating surface is located at the bottom, the housing further comprises a front end surface and a rear end surface opposite to each other, and a first side surface and a second side surface opposite to each other, the front end surface, the rear end surface, the first side surface and the second side surface are formed by extending from the respective side edges of the mating surface, and the recessed portion is adjacent to the front end surface or the rear end surface. The combination of a wire-end connector and a board-end connector as described in claim 32, wherein the first contact includes the first abutting portion disposed in the housing and extending toward the abutting surface, and a first connecting portion connected to the first abutting portion; the second contact includes the second abutting portion disposed in the housing and extending toward the abutting surface, and a second connecting portion connected to the second abutting portion; the first wire is electrically connected to the first connecting portion, and the second wire is electrically connected to the second connecting portion. As described in claim 31, the combination of the wire-end connector and the board-end connector, wherein the first locking structure and the first contact piece and the second contact piece are arranged in a triangle. As a combination of a wire-end connector and a board-end connector as described in claim 32, wherein the recessed portion is adjacent to a corner between the front end face and the second side face, the first contact piece is adjacent to a corner between the front end face and the first side face, and the second contact piece is adjacent to a corner between the rear end face and the second side face. A combination of a wire-end connector and a board-end connector as described in claim 31, wherein the housing is formed by coating injection molding. A combination of a line-end connector and a board-end connector as described in claim 31, wherein the outer shell includes a shell body and a cover body that are combined with each other. As claimed in claim 37, the combination of a wire end connector and a board end connector, wherein the housing has two through grooves for accommodating the first contact and the second contact respectively, each through groove is provided with a stop edge located at the bottom and adjacent to the abutting surface, and an elastic stop arm extending from the top into the through groove, the stop edges of the two through grooves are used to stop a bottom edge of the first contact and a bottom edge of the second contact respectively, and the elastic stop arms of the two through grooves are used to stop an upper stop surface of the first contact and an upper stop surface of the second contact respectively. As claimed in claim 33, the combination of a wire end connector and a board end connector, wherein the first docking portion includes a barrel and a cage-shaped contact body disposed in the barrel, the second docking portion includes a barrel and a cage-shaped contact body disposed in the barrel; the third docking portion and the fourth docking portion are cylindrical and are used to electrically connect to the cage-shaped contact body of the first docking portion and the cage-shaped contact body of the second docking portion, respectively. As described in claim 39, the combination of the wire-end connector and the board-end connector, wherein the cage-shaped contact body of the first docking portion and the second docking portion each has an annular head and an elastic contact sheet extending from the annular head. As claimed in claim 31, the combination of a wire-end connector and a board-end connector, wherein the first locking structure has a cantilever extending downward and a first buckle unit disposed on the cantilever; the second locking structure includes a base extending upward and a second buckle unit disposed on the base and used to buckle with the first buckle unit. As a combination of a wire-end connector and a board-end connector as described in claim 31, the second locking structure includes a base extending upward and a screw hole provided on the base, and the first locking structure has an opening passing through vertically, and a screw rotatably passing through the opening and used to be screwed into the screw hole. As described in claim 31, the combination of a line-end connector and a board-end connector, wherein the stopper is a circuit board, the third connection portion is electrically connected to the circuit board, and the fourth connection portion is electrically connected to the circuit board. As a combination of a line-end connector and a board-end connector as described in claim 43, the third contact also has a stopper portion that stops at the top surface of the circuit board, and the fourth contact also has a stopper portion that stops at the top surface of the circuit board. As a combination of a line-end connector and a board-end connector as described in claim 43, the third contact also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling, and the fourth contact also has a raised protrusion for stopping at the top surface of the circuit board to raise the space for solder filling. As described in claim 31, the combination of a wire-end connector and a board-end connector, wherein the blocking seat is a base body, the base body has two through holes passing through the base body respectively, the third docking portion and the fourth docking portion extend upward from the two through holes respectively, and the second locking structure is formed integrally with the base body. As a combination of a wire-end connector and a board-end connector as described in claim 46, the third contact also has a stopper portion that stops at the top surface of the base, and the fourth contact also has a stopper portion that stops at the top surface of the base. As a combination of a wire-end connector and a board-end connector as described in claim 46, the third contact also has an interference rib for interfering with the inner wall surface of the corresponding through hole, and the fourth contact also has an interference rib for interfering with the inner wall surface of the corresponding through hole. A combination of a wire-end connector and a board-end connector as described in claim 32, wherein the projections of the first contact and the second contact on the front end surface partially overlap each other. A combination of a wire-end connector and a board-end connector as described in claim 32, wherein the projections of the first contact and the second contact on the first side surface partially overlap each other. The combination of a line-end connector and a board-end connector as described in claim 33, wherein the first wire and the second wire extend from the rear end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion respectively. As described in claim 33, the combination of a line-end connector and a board-end connector, wherein the housing further has an upper end surface spaced opposite to the mating surface, and the first wire and the second wire extend from the upper end surface into the housing and are electrically connected to the first connecting portion and the second connecting portion, respectively. As described in claim 33, the combination of a line-end connector and a board-end connector, wherein the first connecting portion and the second connecting portion are in a plate shape, and the first wire and the second wire are electrically connected to the opposite sides of the first connecting portion and the second connecting portion, respectively. As claimed in claim 31, the combination of a wire-end connector and a board-end connector, wherein the wire-end connector further comprises a supporting rib disposed in the recessed portion of the housing, the supporting rib being capable of supporting the first locking structure, and the second locking structure of the board-end connector comprising a avoiding groove corresponding to the supporting rib, the avoiding groove being used to avoid the supporting rib when the first locking structure and the second locking structure are locked with each other.

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