Electric connector

Abstract

An electric connector comprises a seat body extending in the longitudinal direction, two rows of conductive terminals fixed to the seat body and a spacer arranged between the two rows of conductive terminals in the transverse direction perpendicular to the longitudinal direction, each row of conductive terminals comprises a signal terminal and a grounding terminal, and each conductive terminal comprises a contact part and a pin. The spacer comprises an electrical loss component made of an electrical loss material and a metal shielding plate fixedly held in the electrical loss component, and the grounding terminals in the two rows of conductive terminals are respectively abutted against the electrical loss component. Compared with the prior art, the distance piece is composed of the electric loss component and the metal shielding plate, the electric loss component abuts against the grounding terminal, the metal shielding plate is used for separating the two rows of conductive terminals, and the high-frequency performance of the electric connector is good.

Description

[Technical field]

[0001] The present invention relates to an electric connector, in particular to an electric connector with a metal shielding plate and an electric loss component. [Background technology]

[0002] The prior art refers to Taiwan Invention Patent No. TWM562507U, which discloses an electrical connector, including a seat, two rows of conductive terminals held in the seat, a conductive plastic part disposed between the two rows of conductive terminals, and a metal shell disposed outside the seat, wherein the conductive plastic part is respectively in contact with the grounding terminals in the two rows of conductive terminals, and the conductive plastic part is used to realize the series connection of the grounding terminals, thereby reducing the crosstalk between signals. However, with the development of high-speed connectors, the industry's demand for high-frequency performance of electrical connectors continues to increase, and current electrical connectors can no longer meet the demand.

[0003] Therefore, it is necessary to improve the existing electrical connector to meet the needs. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an electrical connector which can improve high frequency performance.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solution: an electrical connector, comprising a seat body extending in the longitudinal direction, two rows of conductive terminals fixed to the seat body, and a spacer arranged between the two rows of conductive terminals in a transverse direction perpendicular to the longitudinal direction, each row of the conductive terminals comprises a signal terminal and a ground terminal, the conductive terminals comprise a contact portion and a pin, the spacer comprises an electrically lossy component made of an electrically lossy material and a metal shielding plate fixed in the electrically lossy component, and only the grounding terminals in the two rows of the conductive terminals are respectively abutted against the electrically lossy components.

[0006] Furthermore, the spacer includes a plurality of independent electrically lossy components made of electrically lossy material, the metal shielding plate extends longitudinally and is disposed transversely between the two rows of the conductive terminals, a plurality of the electrically lossy components are fixed to the metal shielding plate at intervals along the longitudinal direction, and spacing grooves are formed between adjacent electrically lossy components. The grounding terminals in the two rows of the conductive terminals are respectively located on the transverse sides of the plurality of the electrically lossy components, and the signal terminals of the two rows of the conductive terminals are disposed corresponding to the spacing grooves.

[0007] Furthermore, the conductive terminal includes a flat plate portion and a pin extending from the flat plate portion out of the seat body, the flat plate portion has an outer surface and an inner surface opposite to each other, and the outer surface is exposed from the seat body to form the contact portion.

[0008] Furthermore, the seat body includes a docking block and a seat body block assembled together, the docking block is injection molded on the spacer, the docking block includes a docking tongue plate and a mounting portion, the seat body block includes a base plate and a surrounding wall portion, the base plate is provided with a mounting opening, the mounting portion of the docking block is fixed in the mounting opening, the docking tongue plate is located in the surrounding wall portion, and a docking cavity is formed between the docking tongue plate and the surrounding wall portion, the contact portion of the conductive terminal is exposed to the docking surface of the docking tongue plate, and the inner surface of the flat plate portion abuts against the electrical loss component.

[0009] Furthermore, the docking block includes a base block and a covering block, the base block is injection molded outside the spacer, the covering block is injection molded outside the base block, the lateral sides of the covering block constitute the docking surfaces of the docking tongue plate, a plurality of the electric loss components are injection molded on the metal shielding plate, the electric loss components are rectangular structures, the lateral sides of the electric loss components are planar abutment surfaces, and the inner surfaces of the flat plate portions of the grounding terminals of the two rows of conductive terminals abut against the planar abutment surfaces on the lateral sides of the electric loss components.

[0010] Furthermore, the side surfaces on both lateral sides of the base block protrude to form a plurality of protrusions arranged at intervals along the longitudinal direction, and positioning grooves for fixing the flat plate portion of the conductive terminal are formed between adjacent protrusions, and the planar abutment surfaces of a plurality of the power loss components are exposed to the side surfaces so that the flat plate portion of the grounding terminal is positioned in the positioning groove and then abuts against the planar abutment surface.

[0011] Furthermore, the upper and lower sides of the side surface of the base block protrude to form a plurality of protruding block portions spaced apart in the longitudinal direction, the upper surface of the base block protrudes upward to form a plurality of blocks spaced apart in the longitudinal direction, and the upper surface of the covering block is provided with openings for exposing the blocks after injection molding.

[0012] Furthermore, a pair of recessed portions spaced apart from each other are formed on the side surface of the base block between the protruding portions on the upper and lower sides at the flat plate portion corresponding to the signal terminal, and the covering block is filled into the pair of recessed portions after being injection molded on the base block.

[0013] Furthermore, the power loss component is injection molded on the metal shielding plate, a plate surface of the metal shielding plate is provided with a through hole, and an upper edge of the metal shielding plate is higher than an upper edge of the flat plate portion of the signal terminal.

[0014] Furthermore, the electrical connector also includes a metal shell, which extends upward and protrudes out of the mating surface of the seat body, and the metal shell includes a first side wall, a second side wall opposite to the first side wall, and two end walls connecting the first side wall and the second side wall, the first side wall is provided with a locking hole, and the end wall is provided with a first protruding portion and a second protruding portion protruding out of the mating surface, the second protruding portion is higher than the first protruding portion, the second protruding portion is flush with the first side wall, and the first protruding portion extends to the corner of the second side wall.

[0015] Compared with the prior art, the present invention has the following beneficial effects: in the electrical connector of the present invention, the spacer is composed of an electric loss component and a metal shielding plate, the electric loss component abuts against the ground terminal but does not contact the signal terminal, the electric loss component connects the ground terminal in series, and the metal shielding plate is used to separate two rows of conductive terminals, and the high-frequency performance of the electrical connector is excellent.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the electrical connector of the present invention.

[0017] Figure 2 yes Figure 1 Another perspective of the stereogram.

[0018] Figure 3 It is a three-dimensional exploded view of the electrical connector of the present invention.

[0019] Figure 4 yes Figure 3 Another perspective exploded view with the metal shell removed.

[0020] Figure 5 It is a three-dimensional view showing that the spacer of the electrical connector of the present invention is injection molded on the base block, and the conductive terminal is fixed on the base block.

[0021] Figure 6 It is a partial three-dimensional exploded view of the electrical connector of the present invention.

[0022] Figure 7 yes Figure 6 Another perspective exploded view.

[0023] Figure 8 It is a schematic diagram of the cooperation between the spacer and the conductive terminal of the present invention.

[0024] Fig. 9 yes Figure 1 Section view along line AA.

[0025] Fig.10 yes Figure 1 Section view along line BB. [Specific implementation method]

[0026] In order to facilitate a better understanding of the purpose, structure, characteristics and effects of the present invention, the present invention is further described in conjunction with the accompanying drawings and specific implementation methods.

[0027] See also Figures 1 to 10 As shown, the present invention is an electrical connector 100 for high-speed signal transmission, which is installed on a circuit board (not shown). The electrical connector 100 is an FPIO connector.

[0028] The electrical connector 100 includes an insulating base body 1 extending longitudinally, two rows of conductive terminals 2 fixed to the base body 1 , a spacer 3 arranged between the two rows of conductive terminals 2 in a vertical and longitudinal direction, and a metal shell 4 arranged around and fixed outside the base body 1 .

[0029] The seat body 1 includes a docking tongue plate 101 and a surrounding wall portion 122 surrounding the docking tongue plate 101. The surrounding wall portion 122 and the docking tongue plate 101 are spaced apart to form a docking cavity 103. The docking cavity 103 passes through the docking surface 104 of the seat body 1 upward. The metal shell 4 is installed on the outer side of the surrounding wall portion 122 and extends upward to exceed the docking surface 104 of the seat body 1. The metal shell 4 includes a first side wall 41, a second side wall 42 opposite to the first side wall 41, and two end walls 43 connecting the first side wall 41 and the second side wall 42. The first side wall 41 of the metal shell 4 is provided with a locking hole 411. The locking hole 411 is used for a locking arm (not shown) of a docking connector (not shown) to be buckled in, thereby completing the locking function. The lower ends of the first side wall 41 and the second side wall 42 extend downward to form solder feet 40 soldered to a circuit board (not shown). The height of the second side wall 42 of the metal shell 4 is lower than that of the first side wall 41. The second side wall 42 is roughly flush with the docking surface 104. The two opposite end walls 43 are stepped, including a first protruding portion 431 protruding from the docking surface 104 at a first height and a second protruding portion 432 protruding from the docking surface 104 at a second height. The second protruding portion 432 is higher than the first protruding portion 431. The second protruding portion 432 is roughly flush with the height of the first side wall 41. A portion of the first protruding portion 431 continues to extend to the corner of the second side wall 42. A plurality of guide pieces 44 further extend upward from the second protruding portion 432 and the first side wall 41. The high and low structure of the metal shell 40 can better wrap the docking connector (not shown) therein, which not only has a good alignment effect, but also can ensure force balance. A plurality of retaining blocks 120 are provided on the outer side of the seat body 1. The metal shell 4 is supported downwardly in the slit of the retaining blocks 120, which can fix the metal shell 4 well.

[0030] The seat body 1 includes a docking block 11 and a seat body block 12 assembled together. The docking block 11 is injection molded on the spacer 3, and the two rows of conductive terminals 2 are fixed in the docking block 11. The docking block 11 includes the docking tongue plate 101 and the mounting portion 105. The seat body block 12 includes a bottom plate 121 and the surrounding wall portion 122. The bottom plate 121 is provided with a mounting opening 1211. The docking block 11 is installed into the mounting opening 1211 from the bottom surface of the seat body block 12. The mounting portion 105 of the docking block 11 is installed in the mounting opening 1211 by clamping and interference, so that the two are assembled together to form the seat body 12. The mounting portion 105 is provided with convex portions 1051 at both longitudinal ends. The bottom surface of the bottom plate 121 is concavely formed upward to form a groove 1212. The convex portion 1051 is interference-fixed in the groove 1212. The groove 1212 can limit the upward movement of the docking block 11. The two lateral sides of the mounting portion 105 protrude to form a block portion 1052, and correspondingly, the side wall 1221 extending longitudinally of the surrounding wall portion 122 is provided with a holding hole 1222 for the block portion 1052 to be inserted into, and the two cooperate to limit the movement of the docking block 11 in the up and down directions. In addition, the inner wall surface of the side wall 1221 is provided with a plurality of ribs 1223, and the ribs 1223 are used for interference fit with the two lateral sides of the mounting portion 105.

[0031] Each conductive terminal 2 includes a flat plate portion 21 and a pin 22 extending from the flat plate portion 21 out of the base body 1. The flat plate portion 21 has an outer surface 211 and an inner surface 212 opposite to each other. The outer surface 211 is exposed to the base body 1 to form a contact portion 213. Specifically, the contact portion 213 is exposed to the mating surface 1011 of the mating tongue plate 101. Each row of the conductive terminals 2 includes a signal terminal 20S and a ground terminal 20G. In the present invention, in each row of the conductive terminals 2, two adjacent signal terminals 20S form a differential terminal pair. The differential terminal pair and the ground terminal 20G are arranged alternately with each other. A ground terminal 20G is provided on each longitudinal side of a differential terminal pair. The upper edge of the flat plate portion 21 of the ground terminal 20G protrudes upward from the upper edge of the flat plate portion 21 of the signal terminal 20S. The width of the flat plate portion 21 of the ground terminal 20G is also greater than the width of the flat plate portion 21 of the signal terminal 20S.

[0032] The spacer 3 is laterally disposed between the two rows of conductive terminals 2. The spacer 3 includes an electric loss component 31 made of an electric loss material and a metal shielding plate 32 fixed in the electric loss component 31. The inner surfaces 212 of the flat portions 21 of the ground terminals 20G in the two rows of conductive terminals 2 are respectively in contact with the electric loss component 31, while the signal terminals 20G are not in contact with the electric loss component 31. In the present invention, the spacer 3 includes a plurality of independent electrical loss components 31 made of electrical loss material, the electrical loss components 31 are arranged in a longitudinal interval, and a spacing groove 310 is formed between adjacent electrical loss components 31. The metal shielding plate 32 is a metal plate body extending in the longitudinal direction and arranged between the two rows of the conductive terminals 2 in the transverse direction. The grounding terminals 20G in the two rows of the conductive terminals 2 are respectively located on the transverse sides of the plurality of electrical loss components 31 to abut against the electrical loss components 31, and the signal terminals 20S in the two rows of the conductive terminals 2 correspond to the spacing groove 310 so as not to contact the electrical loss components 31. The grounding terminals 20G. The plurality of electrical loss components 31 are injection molded and fixed on the metal shielding plate 32. The plate surface of the metal shielding plate 32 is provided with a through hole 321. During the process of injection molding the electrical loss components 31 on the metal shielding plate 32, the electrical loss material will pass through the through hole 321, so that the electrical loss components 31 and the metal shielding plate 32 are reliably combined. The upper edge of the metal shielding plate 32 is higher than the upper edge of the signal terminal 20S, so that the metal shielding plate 32 can reliably reduce the signal interference between the two rows of the conductive terminals 2 .

[0033] The docking block 11 further includes a base block 110 and a covering block 111. The base block 110 is injection molded outside the spacer 3, and the covering block 111 is injection molded outside the base block 110. The lateral sides of the covering block 111 constitute the docking surfaces 1011 of the docking tongue plate 101. The electric loss component 31 is a rectangular structure. The lateral sides of the electric loss component 31 are plane abutting surfaces 311. The inner surfaces 212 of the flat plate portions 21 of the two rows of the conductive terminals 2 abut against the plane abutting surfaces 311 on the lateral sides of the electric loss component 31, and the contact between the two is reliable. The side surfaces 1100 on the lateral sides of the base block 110 protrude to form a plurality of protruding blocks 1102 arranged at intervals in the longitudinal direction. Positioning grooves 1103 are formed between adjacent protruding blocks 1102, and the flat plate portions 21 of the conductive terminals 2 are fixed to the positioning grooves 1103. The planar abutting surfaces 311 of the power loss components are exposed on the side surface 1100 in the corresponding positioning grooves 1103 of the grounding terminal 20G, so that the inner surface 212 of the planar portion 21 of the grounding terminal 20G abuts against the planar abutting surfaces 311 after the flat plate portion 21 of the grounding terminal 20G is positioned in the positioning grooves 1103. Specifically, the upper and lower sides of the side surface 1100 of the base block 110 both protrude to form a plurality of the protruding block portions 1102 arranged at intervals in the longitudinal direction, so that the positioning accuracy of the conductive terminal 2 can be guaranteed. In addition, the upper surface 1104 of the base block 110 protrudes upward to form a plurality of blocks 1105 arranged at intervals along the longitudinal direction. Correspondingly, the upper surface 1111 of the covering block 111 is provided with an opening 1112 for exposing the block after injection molding of the base block 110. The side surface 1100 of the base block 110 is recessed between the protruding block portions 1102 on the upper and lower sides at the flat plate portion 21 corresponding to the signal terminal 20S to form a pair of recessed portions 1106 spaced apart from each other in an upper and lower direction. The recessed portions 1106 are filled in when the covering block 111 is injection molded, thereby preventing the docking block 11 from warping due to heat.

[0034] The manufacturing method of the electrical connector 100 of the present invention is described below. A plurality of power loss components 31 and a metal shielding plate 32 extending in the longitudinal direction are provided. The plurality of power loss components 31 are injection molded on the metal shielding plate 32 to form a spacer 3. An insulating material is provided and injection molded outside the spacer 3 to form a base block 110. The power loss components 31 of the spacer 3 are exposed on both lateral sides of the base block 110. Two rows of conductive terminals 2 are provided and the flat plate portions 21 of the conductive terminals 2 are fixed to the positioning grooves 1103 on both sides of the base block 110. The grounding terminals 20G are provided at the bottom of the base block 110. The inner surface 212 of the flat plate portion 21 abuts against the planar abutment surface 311 of the electric loss component 31 exposed to the side surface 1100 of the base block 110; an insulating material is provided and injection molded outside the base block 110 to form a covering block 111; an insulating base block 12 is provided, and the docking block 11 composed of the base block 110 and the covering block 111 is assembled from bottom to top and fixed to the base block 12 through the installation port 1211 of the base block 12; a metal shell 4 is provided, and the metal shell 4 is assembled and fixed to the base block 12 from top to bottom to form the electrical connector 100.

[0035] The above are only preferred embodiments of the present invention, and should not be used to limit the scope of the present invention. That is, all simple equivalent changes and modifications made according to the claims and the contents of the present invention should still fall within the scope of the present invention.

Claims

1. An electrical connector, comprising a seat extending in a longitudinal direction, two rows of conductive terminals fixed to the seat, and a spacer disposed between the two rows of conductive terminals in a transverse direction perpendicular to the longitudinal direction, each row of conductive terminals comprising a signal terminal and a ground terminal, the conductive terminals comprising a contact portion and a pin, characterized in that: The spacer includes an electric loss component made of an electric loss material and a metal shielding plate fixed in the electric loss component. The grounding terminals in the two rows of conductive terminals are respectively in contact with the electric loss component.

2. The electrical connector according to claim 1, wherein: The spacer includes a plurality of electrically lossy components that are independent of each other and are made of electrically lossy material. The metal shielding plate extends longitudinally and is disposed transversely between the two rows of the conductive terminals. The plurality of electrically lossy components are fixed to the metal shielding plate at intervals along the longitudinal direction. Spacing grooves are formed between adjacent electrically lossy components. The grounding terminals in the two rows of the conductive terminals are respectively located on both sides of the plurality of electrically lossy components in the transverse direction. The signal terminals of the two rows of the conductive terminals are disposed corresponding to the spacing grooves.

3. The electrical connector according to claim 2, wherein: The conductive terminal includes a flat plate portion and a pin extending from the flat plate portion out of a seat body. The flat plate portion has an outer surface and an inner surface opposite to each other. The outer surface is exposed to the seat body to form the contact portion.

4. The electrical connector according to claim 3, wherein: The seat body includes a docking block and a seat body block assembled together, the docking block is injection molded on the spacer, the docking block includes a docking tongue plate and a mounting portion, the seat body block includes a bottom plate and a surrounding wall portion, the bottom plate is provided with a mounting opening, the mounting portion of the docking block is fixed in the mounting opening, the docking tongue plate is located in the surrounding wall portion, and a docking cavity is formed between the docking tongue plate and the surrounding wall portion, the contact portion of the conductive terminal is exposed to the docking surface of the docking tongue plate, and the inner surface of the flat plate portion abuts against the electrical loss component.

5. The electrical connector according to claim 4, wherein: The docking block includes a base block and a covering block, the base block is injection molded outside the spacer, the covering block is injection molded outside the base block, the lateral sides of the covering block constitute the docking surfaces of the docking tongue plate, a plurality of the electric loss components are injection molded on the metal shielding plate, the electric loss components are rectangular structures, the lateral sides of the electric loss components are planar abutment surfaces, and the inner surfaces of the flat plate portions of the grounding terminals of the two rows of conductive terminals abut against the planar abutment surfaces on the lateral sides of the electric loss components.

6. The electrical connector according to claim 5, wherein: The side surfaces on both lateral sides of the base block protrude to form a plurality of protrusions arranged at intervals along the longitudinal direction, and positioning grooves for fixing the flat plate portion of the conductive terminal are formed between adjacent protrusions. The planar abutment surfaces of a plurality of the power loss components are exposed on the side surfaces so that the flat plate portion of the grounding terminal is positioned in the positioning groove and then abuts against the planar abutment surface.

7. The electrical connector according to claim 6, wherein: The upper and lower sides of the side surface of the base block protrude to form a plurality of protruding block portions spaced apart in the longitudinal direction, the upper surface of the base block protrudes upward to form a plurality of blocks spaced apart in the longitudinal direction, and the upper surface of the covering block is provided with openings for exposing the blocks after injection molding.

8. The electrical connector according to claim 7, wherein: The side surface of the base block is provided with a pair of recessed portions spaced apart from each other at upper and lower sides between the protruding portions at the flat plate portion corresponding to the signal terminal. The covering block is injection molded on the base block and then filled into the pair of recessed portions.

9. The electrical connector according to claim 1, wherein: The power loss component is injection molded on the metal shielding plate. A through hole is provided on a plate surface of the metal shielding plate. The upper edge of the metal shielding plate is higher than the upper edge of the flat plate portion of the signal terminal.

10. The electrical connector according to claim 1, wherein: The electrical connector also includes a metal shell, which extends upward and protrudes from the mating surface of the seat body. The metal shell includes a first side wall, a second side wall opposite to the first side wall, and two end walls connecting the first side wall and the second side wall. The first side wall is provided with a locking hole, and the end wall is provided with a first protruding portion and a second protruding portion protruding from the mating surface, the second protruding portion is higher than the first protruding portion, the second protruding portion is flush with the first side wall, and the first protruding portion extends to the corner of the second side wall.

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