TWI669865B - Electrical connector - Google Patents

Abstract

The present invention relates to an electrical connector having an insulating base and a plurality of power terminals. The insulating base has two opposite side walls and a mating cavity formed between the two side walls. The mating cavity is formed for a pair of connections. Each of the foregoing power terminals is in the form of a sheet, and has a fixing piece fixed on the side wall, a contact piece extending from one end of the fixing piece into the mating cavity, and an insulating body extending from the other end of the fixing piece. a soldering leg, wherein the contact piece is formed by bending one end of the adjacent insertion interface of the fixing piece toward the soldering leg, and each of the contact pieces is formed with a plurality of laterally spaced contact portions, and the contact portion is disposed on the contact piece away from the insertion interface. .

Description

Electrical connector

The invention relates to an electrical connector.

In the conventional power connector, the contact portion of the power terminal is disposed close to the plug connector, and the plugging depth is shallow when the electrical connection with the mating component is made, and the plug stability is difficult to be secured.

In view of this, it is indeed necessary to further improve the conventional electrical connector to solve the above problems.

It is an object of the present invention to provide an electrical connector that can improve plug stability.

In order to achieve the above object, the present invention provides an electrical connector having an insulating base and a plurality of power terminals, wherein the insulating base has two opposite sidewalls, and a mating cavity formed between the two sidewalls, the mating cavity Forming a plug-in interface for inserting a pair of connecting elements, each of the power terminals is in a sheet shape design, and has a fixing piece fixed on the side wall, a contact piece extending from one end of the fixing piece into the mating cavity, and extending from the other end of the fixing piece a soldering leg of the insulating body, wherein the contact piece is formed by bending from one end of the adjacent insertion interface of the fixing piece toward the soldering leg, and each of the contact pieces is formed with a plurality of laterally spaced contact portions, the contact portion Set away from the plug connector on the contact piece.

As a further improvement of the present invention, the contact piece is formed with a plurality of elastic arms disposed at a lateral interval, and the plurality of elastic arms are separately extended from the starting end of the contact piece and are laterally connected to each other at the free end of the contact piece. The portion is formed on the aforementioned elastic arm.

According to a further improvement of the present invention, the insertion direction of the mating component is set to be the front-rear direction, and the side wall is provided with a fixing groove for fixing the fixing piece and a blocking portion located at the front end of the fixing groove to restrict the power terminal from moving forward.

According to a further improvement of the present invention, the fixing piece has a convex shape, and has a substrate portion on the rear side, an engaging portion formed on both sides of the substrate portion, and a protruding portion projecting forward from the substrate portion, formed in the foregoing a limiting portion on both sides of the protrusion; the width of the protruding portion is smaller than a width of the substrate portion, and the fixing groove is also formed in a convex shape as a whole, and has an intermediate portion for accommodating the substrate portion and the protruding portion, and is formed on both sides of the intermediate portion The fixing portion is configured to interfere with the limiting portion and the engaging portion.

As a further improvement of the present invention, the contact piece is formed to extend from the front end of the protrusion, and the substrate portion is formed with a reinforcing rib extending in the lateral direction.

According to a further improvement of the present invention, the fixing groove is open rearward, and the blocking portion is formed with a gas permeable window which is opened forward and communicates rearwardly with the fixing groove.

According to a further improvement of the present invention, the heat dissipation flow path is formed on the side of the fixing groove facing away from the mating cavity, and the heat dissipation flow path communicates with the fixing groove and is opened rearward. .

As a further improvement of the present invention, the heat dissipating opening is formed on the fixing piece, and the heat dissipating opening communicates with the mating cavity and the heat dissipating flow path in the up and down direction.

According to a further improvement of the present invention, the plurality of power terminals are disposed along the lateral direction of the insulating base, and the mating chambers corresponding to the upper and lower sides of the plurality of power terminals are disposed in a lateral direction, and the sidewalls are formed at spaced positions between adjacent power terminals. The heat dissipation channel penetrates the front and rear, and the heat dissipation channel communicates with the mating cavity.

According to a further improvement of the present invention, the outer side of the side wall protrudes outwardly from the position of the adjacent power supply terminal, and the protruding portion extends along the insertion direction to form an outer surface of the insulating base.

Compared with the prior art, the contact portion of the electrical connector of the present invention is disposed on the contact piece away from the insertion interface to increase the insertion depth of the docking component and improve the plugging stability.

Referring to FIG. 1 to FIG. 11 , the electrical connector 100 of the present invention includes an insulating base 1 and a plurality of power terminals 2 fixed to the insulating base 1 . For convenience of explanation, the following description will be made with the butt end of the electrical connector 100 as the front end and the other end opposite to the mating end as the rear end, that is, the front and rear directions are the electrical connector 100 and the docking component (not shown). In the plugging direction, another direction perpendicular to the front-rear direction is defined as a lateral direction, and the other direction perpendicular to the front-rear direction is a height direction (also referred to as an up-and-down direction). In the embodiment, the insulating base 1 is laterally The dimension in the direction is larger than the dimension in the height direction and the front-rear direction.

Referring to FIGS. 1 to 6 and in conjunction with the eighth to eleventh drawings, in the present invention, the insulating base 1 has two side walls 11 disposed opposite each other in the up and down direction and formed on the two side walls 11 Between the mating chambers 12, the aforementioned docking chamber 12 is formed with a plug connector 120 into which a pair of mating members are inserted. In the present embodiment, each of the foregoing side walls 11 is horizontally disposed, and the two side walls 11 are spaced apart in the up and down direction to form the abutting cavity 12 therebetween, and the two side walls 11 face each other on the side of each side wall 11 The other side of the inner side opposite to the inner side is provided on the outer side thereof, and each of the side walls 11 is provided with an inclined extending guiding surface 111 on the inner side thereof. The guiding surface 111 is rearward and inward from the front end surface 110 of the side wall 11 The tilting is extended to maximize the opening size of the front end of the plug connector 120.

In the present invention, the insertion direction of the mating component is set to be the front-rear direction, and the side wall 11 is provided with a fixing groove 112 and a blocking portion 113 located at the front end of the fixing groove 112. In the present embodiment, the barrier portions 113 on the two aforementioned side walls 11 are disposed opposite to each other. The fixing groove 112 is integrally formed in a convex shape, and has an intermediate portion 1121 located at a middle portion and a fixing portion 1122 formed at both sides of the intermediate portion 1121.

The fixing groove 112 is opened rearward, and the blocking portion 113 is formed with a gas permeable window 1131 which is opened forward and communicates rearwardly with the fixing groove 112. In the present embodiment, the gas permeable window 1131 penetrates the barrier portion 113 in the front-rear direction, and the width of the gas permeable window 1131 in the lateral direction is smaller than the width of the fixing groove 112.

The heat dissipation flow path 114 is formed on the side of the fixing groove 112 facing away from the mating cavity 12, and the heat dissipation flow path 114 communicates with the fixing groove 112 and the ventilation window 1131, and Open the settings backwards. In other words, the inner side of the side wall 11 has the heat dissipation flow path 114, and the heat dissipation flow path 114 and the abutting cavity 12 are respectively disposed on opposite sides of the corresponding fixing groove 112 in the height direction.

In addition, at least one recess 118 (shown in FIG. 8 and FIG. 9 ) is recessed from the inner surface of the sidewall 11 , and the recess 118 communicates with the corresponding heat dissipation channel 114 and the fixing slot 112 . Each of the outer sides of the fixing groove 112 is correspondingly provided with a plurality of the aforementioned grooves 118 arranged side by side in the lateral direction, each of the grooves 118 extending in the front-rear direction and extending rearward to the rear end surface of the side wall 11 to exhibit a rearward open state, the foregoing The groove 118 extends forward to be flush with the aforementioned fixing groove 112, that is, it does not penetrate the aforementioned side wall 11 forward.

In the present embodiment, the insulating base 1 has the upper and lower rows of the fixing groove 112 and the partition wall 13 formed between the upper row fixing groove 112 and the lower row fixing groove 112. The partition wall 13 is along the lateral direction. The extension is formed inside the insulating base 1 and separates the upper and lower rows of the fixing slots 112. The plurality of power terminals 2 in the same row are arranged along the lateral direction of the insulating housing 1. Further, the partition wall 13 is located between the two side walls 11 in the up-and-down direction and is disposed near the rear end surface of the side wall 11. Further, in the front-rear direction, the rear end surface of the partition wall 13 is located on the front side of the rear end of the side wall 11.

In other embodiments, the insulating base 1 may be formed by spacing the two side walls 11 to form only one row of the fixing slots 112. The plurality of power terminals 2 are arranged along the lateral spacing of the insulating housing 1.

In addition, the sidewalls 11 form a heat dissipation channel 115 extending through the front and rear at an interval between adjacent power terminals 2, and the heat dissipation channel 115 communicates with the docking cavity 12. In the embodiment, the heat dissipation channel 115 is divided into a first heat dissipation channel 1151 on the front side and a second heat dissipation channel 1152 on the rear side of the first heat dissipation channel 1151. The width of the first heat dissipation channel 1151 is wider in the lateral direction. The width of the second heat dissipation channel 1152 is small. In the front-rear direction, the length of the first heat dissipation channel 1151 is smaller than the length of the second heat dissipation channel 1152, and the first heat dissipation channel 1151 is located on the front side of the fixing groove 112.

The outer side of the side wall 11 is outwardly provided with a protruding portion 116 at a position spaced apart from the adjacent power source terminal 2, and the protruding portion 116 extends along the insertion direction and along the wall thickness direction of the side wall 11 (that is, the height) Direction) protrudes outward. Further, in the front-rear direction, the protruding portion 116 extends over the entire length of the insulating base 1 , that is, extends from the front end of the insulating base 1 to the rear end of the insulating base 1 , thereby reinforcing the insulating seat. The structural strength of the body 1 is such that the protruding portion 116 is disposed at an interval between adjacent power supply terminals 2, so that the heat dissipation of the power supply terminal 2 is not affected.

The side wall 11 is provided with at least one through groove 117 penetrating in the height direction at a position corresponding to the fixing groove 112, that is, at least one of the aforementioned through grooves 117 is interposed between each two adjacent protruding portions 116. The through groove 117 is in communication with the fixing groove 112, the heat dissipation channel 114 and the groove 118 to release the heat generated by the power terminal 2 in the height direction. In other embodiments, the number of the aforementioned through grooves 117 interposed between each two adjacent projections 116 can be adjusted as needed.

Referring to FIG. 7 to FIG. 11 and in conjunction with the third to fourth figures, each of the foregoing power terminals 2 has a sheet shape design and has a fixing piece 21 fixed to the side wall 11 and the fixing piece. A contact piece 22 extending into the mating cavity 12 at one end and a soldering leg 23 extending from the other end of the fixing piece 21 to the insulating seat are formed. In the present embodiment, the fixing piece 21 is formed in a horizontally flat plate shape, and the contact piece 22 and the welding leg 23 are located on the same side of the fixing piece 21 in the height direction.

Specifically, the fixing piece 21 has a convex shape, and has a substrate portion 211 on the rear side, an engaging portion 212 formed on both sides of the substrate portion 211, and a protrusion 213 protruding forward from the substrate portion 211 to form a protrusion 213. The limiting portion 214 on both sides of the protrusion 213; in the embodiment, the width of the protrusion 213 is smaller than the width of the substrate portion 211 in the lateral direction.

Further, the fixing piece 21 is formed with at least one heat dissipation opening 215. The heat dissipation opening 215 penetrates the fixing piece 21 in the height direction, and the heat dissipation opening 215 communicates with the abutting cavity 12, the heat dissipation flow path 114, and the through groove in the up and down direction. 117, the heat generated by the power terminal 2 is radiated backward and in the height direction. Further, in the vertical direction, the heat dissipation opening 215 is aligned with the corresponding through groove 117 on the insulating base 1 . In the embodiment of the present invention, the foregoing fixing piece 21 is provided with two heat dissipation openings 215, and the two heat dissipation openings 215 are arranged side by side and spaced apart in the lateral direction. In other embodiments, the number of the heat dissipation openings 215 is It can be set according to the use requirements so that the heat accumulated on the fixing piece 21 is dissipated more quickly.

The contact piece 22 is formed to extend from the front end of the protrusion 213, and the substrate portion 211 is formed with a reinforcing rib 2112 extending in the lateral direction. Further, the contact piece 22 is formed by extending backward and backward from the front end of the protrusion 213 so that the corner opening between the contact piece 22 and the fixing piece 21 faces rearward.

Specifically, the contact piece 22 is formed by bending and extending from one end of the fixing piece 21 adjacent to the insertion port 120 toward the welding leg 23, and each of the contact pieces 22 is formed with a plurality of laterally spaced contact portions 221, The contact portion 221 is disposed on the contact piece 22 away from the aforementioned insertion interface 120. That is, the starting end 220 of the contact piece 22 (that is, the contact position of the contact piece 22 and the fixing piece 21) is closer to the front end surface 110 of the side wall 11, and the contact portion 221 is located behind the starting end 220.

In addition, the contact piece 22 is formed with a plurality of elastic arms 223 disposed at a lateral interval. The plurality of elastic arms 223 are separated from the starting end 220 of the contact piece 22 and are connected to each other at a free end of the contact piece 22 in the lateral direction. The portion 221 is formed on the elastic arm 223 and protrudes in a direction away from the fixing piece 21 . In the present embodiment, each of the contact pieces 22 connects the plurality of the elastic arms 223 to each other at a rear end thereof by a connecting arm 224 extending in the lateral direction, and the contact portions on the two contact pieces 22 disposed opposite each other in the height direction. The 221 are arched toward each other to clamp the docking element therein.

During assembly, the power terminals 2 are assembled into the insulative housing 1 from the rear to the front, and the plurality of power terminals 2 in the same row are arranged along the lateral direction of the insulative housing 1 and the mating chambers 12 corresponding to the upper and lower power terminals are arranged. At least a part of the power supply terminals 2 of the two rows of the aforementioned power supply terminals 2 are disposed to face each other in the vertical direction.

The fixing piece 21 of each of the power terminals 2 is fixed in the fixing groove 112 of the side wall 11. The blocking portion 113 is located on the front side of the power terminal 2 to restrict the forward movement of the power terminal 2, and the heat dissipation channel 114 is located at the foregoing fixing. The outer side of the sheet 21 is placed next to it. A gap exists between the outer surface of the fixing piece 21 and the inner surface of the side wall 11 in the height direction. The gap is the heat dissipation flow path 114, and the outer surface of the fixing piece 21 is exposed to the heat dissipation flow path 114. It is not directly in contact with the inner surface of the side wall 11, so that heat can be transmitted along the heat dissipation flow path 114; and the heat dissipation flow path 114 exists between the outer surface of the fixing piece 21 and the side wall 11, and the heat dissipation is performed. The groove 114 is further disposed between the flow channel 114 and the through groove 117, so that a space for supplying a hot air flow between the fixing piece 21 and the side wall 11 is larger, and the heat generated on the power terminal 2 in the height direction is The heat dissipation flow path 114, the groove 118 and the through groove 117 are radiated outward, and the heat dissipation effect is better.

The substrate portion 211 and the protrusion 213 of the fixing piece 21 are received in the intermediate portion 1121 of the fixing groove 112, and the engaging portion 212 and the limiting portion 214 are interference-fitted with the fixing portion 1122 formed on both sides of the intermediate portion 1121 to The front and rear sections of the fixing piece 21 are simultaneously fixed, and the power terminal 2 is stably held in the corresponding fixing groove 112 to prevent the power terminal 2 from shaking when the docking element is docked, thereby improving the docking stability.

The rear edge of the connecting arm 224 is located in front of the front surface of the partition wall 13. In the embodiment, the distance between the contact portion 221 and the front end surface 110 of the sidewall 11 is greater than the contact portion 221 to the sidewall 11 in the front-rear direction. The distance between the end faces is such that the mating component is in electrical contact with the contact portion 221 at a position away from the plug connector, so that the plugging depth of the docking component is effectively deepened, thereby improving the plugging stability. Moreover, since the insertion position is deep, the side wall 11 of the insulating base 1 is provided with a heat dissipation passage 114 which is open rearward, a ventilation window 1131 which is open to the front, and a heat dissipation passage 115 which is disposed in the front-rear direction. Moreover, the power supply terminal 2 does not contact the side wall 11 in the up and down direction due to the existence of the heat dissipation flow path 114, thereby avoiding excessive heat and accumulation due to poor air permeability on both sides of the power supply terminal 2, and the docking cavity 12 is caused. The heat inside is quickly dissipated. Further, the power supply terminal 2 is provided with a heat dissipation opening 215 disposed corresponding to the vertical direction of the through groove 117, so that the power supply terminal 2 dissipates heat more quickly.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

100‧‧‧Electrical connector

1‧‧‧Insulated body

11‧‧‧ side wall

110‧‧‧ front end

111‧‧‧ Guide surface

112‧‧‧fixed slot

1121‧‧‧Intermediate

1122‧‧‧Fixed Department

113‧‧‧Block

1131‧‧‧ Breathable window

114‧‧‧heating runner

115‧‧‧heating channel

1151‧‧‧First heat dissipation channel

1152‧‧‧Second heat dissipation channel

116‧‧‧Protruding

117‧‧‧through slot

118‧‧‧ Groove

12‧‧‧ docking chamber

120‧‧‧ Plug interface

13‧‧‧ partition wall

2‧‧‧Power terminal

21‧‧‧Fixed tablets

211‧‧‧Parts Department

2112‧‧‧Strengthened ribs

212‧‧‧Contact Department

213‧‧‧

214‧‧‧Limited

215‧‧‧heating opening

22‧‧‧Contacts

220‧‧‧starting end

221‧‧‧Contacts

223‧‧‧Flexible arm

224‧‧‧Connecting arm

23‧‧‧ soldering feet

The first figure is an assembled view of the electrical connector of the present invention. The second figure is a view of another view of the electrical connector shown in the first figure. The third figure is an exploded perspective view of the electrical connector shown in the second figure. The fourth figure is a view of another view of the electrical connector shown in the third figure. The fifth figure is a perspective view of the insulative body in the electrical connector shown in the third figure. The sixth figure is a view of another view of the insulating body shown in the fifth figure. Figure 7 is a perspective view of two power supply terminals disposed opposite to each other in the electrical connector shown in Figure 3. The eighth figure is a cross-sectional view taken along line VIII-VIII in the first figure. The ninth drawing is a view of another view of the electrical connector shown in the eighth figure. The tenth figure is a cross-sectional view of the electrical connector shown in the first figure along the line X-X after the partial power terminal is removed. The eleventh figure is another cross-sectional view of the electrical connector shown in the first figure after the partial power terminal is removed.

Claims (10)

An electrical connector includes an insulating base body and a plurality of power supply terminals, wherein the insulating base body has opposite side walls and a mating cavity formed between the two side walls, wherein the mating cavity is formed with a pair of connecting elements inserted therein The plug-in interface, each of the foregoing power terminals has a sheet-like design, and has a fixing piece fixed on the side wall, a contact piece extending from one end of the fixing piece into the mating cavity, and a soldering leg extending from the other end of the fixing piece to the insulating seat body, wherein The contact piece is bent and extended from one end of the adjacent insertion interface of the fixing piece toward the soldering leg. Each of the contact pieces is formed with a plurality of laterally spaced contact portions, and the contact portion is disposed on the contact piece away from the insertion interface. The electrical connector of claim 1, wherein the contact piece is formed with a plurality of elastic arms disposed at a lateral interval, and the plurality of elastic arms extend apart from the starting end of the contact piece and are at the free end of the contact piece. The plurality of contact portions are connected to each other in the lateral direction, and the contact portion is formed on the elastic arm. The electrical connector of claim 1 or 2, wherein the plugging direction of the mating component is set to a front-rear direction, and the side wall is provided with a fixing slot for fixing the fixing piece and a front end of the fixing slot to limit the power terminal. The block that moves forward. The electrical connector of claim 3, wherein the fixing piece has a convex shape, and has a substrate portion on the rear side, an engaging portion formed on both sides of the substrate portion, and protrudes from the substrate portion. a protruding portion formed on the two sides of the protruding portion; the width of the protruding portion is smaller than a width of the substrate portion, and the fixing groove is also provided in a convex shape as a whole, and has a middle portion for accommodating the substrate portion and the protruding portion And a fixing portion formed on both sides of the intermediate portion to interfere with the limiting portion and the engaging portion. The electrical connector of claim 4, wherein the contact piece is formed to extend from a front end of the protrusion, and the substrate portion is formed with a reinforcing rib extending in a lateral direction. The electrical connector of claim 3, wherein the fixing groove is open rearward, and the blocking portion is formed with a gas permeable window that opens forward and communicates rearwardly with the fixing groove. The electrical connector of claim 3, wherein the side wall is formed with a heat dissipation flow path on a side of the fixing groove facing away from the mating cavity, and the heat dissipation flow path is connected to the foregoing Secure the slot and open it back. The electrical connector of claim 7, wherein the fixing piece is formed with a heat dissipation opening, and the heat dissipation opening communicates with the abutting cavity and the heat dissipation flow path in an up and down direction. The electrical connector of claim 3, wherein the plurality of power terminals are disposed along a lateral interval of the insulating base, and the butting chamber corresponding to the upper and lower power terminals is disposed in a lateral direction, and the sidewall is adjacent to the power terminal. A heat dissipation passage penetrating through the front and the rear is formed at a position between the spaces, and the heat dissipation passage is in communication with the abutting cavity. The electrical connector of claim 9, wherein the outer side of the side wall protrudes outwardly from the adjacent power supply terminal, and the protruding portion extends along the insertion direction to form the insulation. The outer surface of the seat.