Electrical connector and method of manufacturing the same

Abstract

The present invention discloses an electrical connector and a manufacturing method thereof. The electrical connector comprises an insulating body, a conductive terminal fixed on the insulating body and a grounding member placed in the insulating body. The conductive terminal comprises a plurality of signal terminals and a plurality of grounding terminals. The grounding member is provided with a plurality of pins. The insulating body is provided with a plurality of glue injection grooves. The pins of the grounding member pass through the corresponding glue injection grooves and contact the corresponding grounding terminals. The glue injection grooves are filled with conductive glue. The conductive glue adheres the pins and the grounding terminals, thereby improving stability and high-frequency performance.

Description

[Technical field]

[0001] The present invention relates to an electrical connector and a manufacturing method thereof, and in particular to an electrical connector that can be mounted on a circuit board and a manufacturing method thereof. [Background technology]

[0002] Chinese utility model patent application No. CN203813128U discloses a connector, which includes an insulating part, the insulating part is connected with a plug contact part and a side contact part respectively, the insulating part has a conductive terminal built in to electrically connect the plug contact part and the side contact part, the conductive terminal includes a grounding terminal and a high-speed communication terminal, and a glue injection channel connected to the grounding terminal is formed in the insulating part, and conductive glue is injected into the glue injection channel. However, such structures will lead to low holding stability of the grounding piece and weak grounding effect, which will cause the grounding piece in the electrical connector to be easily misplaced, thereby affecting the high-frequency signal transmission between the signal terminals and between the signal terminals and the grounding terminals, which is not conducive to high-frequency signal transmission.

[0003] Therefore, it is necessary to provide a new technical solution to improve the above defects. [Summary of the invention]

[0004] The technical problem to be solved by the present invention is to provide an electrical connector with stable contact and good high-frequency transmission performance and a manufacturing method thereof.

[0005] To solve the above problems, the present invention may adopt the following technical solutions: an electrical connector, comprising an insulating body, a conductive terminal fixed on the insulating body and a grounding piece placed in the insulating body, the conductive terminal comprising a plurality of signal terminals and a plurality of grounding terminals, the grounding piece being provided with a plurality of pins; the insulating body being provided with a plurality of glue injection grooves, the pins of the grounding piece passing through the corresponding glue injection grooves one by one and contacting the corresponding grounding terminals; the glue injection grooves being filled with conductive glue, the conductive glue sticking the pins and the grounding terminals.

[0006] Furthermore, the insulating body includes a base and a docking tongue extending from the base, the conductive terminals include a first row of terminals and a second row of terminals respectively located on two surfaces of the docking tongue, and the grounding piece is located between the first row and the second row of terminals; the pins of the grounding piece include a plurality of first spring sheets extending downward and a plurality of second spring sheets extending upward, the first spring sheets press against the grounding terminals in the first row of terminals, and the second spring sheets press against the grounding terminals in the second row of terminals.

[0007] Furthermore, the first spring sheet includes a front first spring sheet extending from front to back and a rear first spring sheet extending from back to front, the front first spring sheet and the rear first spring sheet are respectively pressed against the same grounding terminal, the front first spring sheet is located in the docking tongue plate, and the rear first spring sheet is located in the base.

[0008] Furthermore, the insulating body includes an insulating frame, a first insulator and a second insulator, the conductive terminals include a first row of terminals and a second row of terminals, the first row of terminals is fixed on the lower surface of the first insulator, the grounding piece is installed on the upper surface of the first insulator, the first insulator is provided with the above-mentioned glue injection groove penetrating the upper surface of the first insulator; the second row of terminals is fixed on the upper surface of the second insulator, and the second insulator is provided with the above-mentioned glue injection groove penetrating its lower surface; the upper surface of the first insulator is assembled to the lower surface of the second insulator and fixed to each other; the conductive glue is respectively injected into the above-mentioned glue injection grooves.

[0009] Furthermore, the glue injection groove of the first insulator is an arc-shaped groove expanding outward, and the glue injection groove of the second insulator is a rectangular groove.

[0010] Furthermore, the grounding member also includes a pair of longitudinally arranged long strips and a plurality of beams whose two ends are respectively connected to the long strips, a frame opening is formed between every two beams, and the first and second spring sheets protrude downward and upward from the frame opening respectively.

[0011] Furthermore, the number of the first spring sheets is greater than that of the second spring sheets, the second spring sheets are all located on the same side of the middle of the long strip portion, a small portion of the first spring sheets are located on the same side as the second spring sheets, and most of them are located on the opposite side of the second spring sheets.

[0012] To solve the above problems, the present invention can also adopt the following technical solutions: a method for manufacturing an electrical connector, comprising: a first step, providing an insulating body and a conductive terminal, the insulating body is provided with a glue injection groove, and the conductive terminal includes a signal terminal and a grounding terminal; a second step, providing a grounding piece, the grounding piece protruding with a plurality of pins, the plurality of pins pass through the corresponding glue injection groove and are pressed against the corresponding grounding terminal; a third step, providing conductive glue, injecting the conductive glue into the glue injection groove to bond the grounding piece and the grounding terminal.

[0013] Furthermore, in the first step, the insulating body includes an insulating frame, a first insulator and a second insulator, the conductive terminals include a first row of terminals and a second row of terminals, the first row of terminals is fixed on the lower surface of the first insulator, the grounding piece is installed on the upper surface of the first insulator, and the first insulator is provided with the above-mentioned glue injection groove penetrating the upper surface of the first insulator; the second row of terminals is fixed on the upper surface of the second insulator, and the second insulator is provided with the above-mentioned glue injection groove penetrating its lower surface.

[0014] Furthermore, in the third step, the conductive glue is first injected into the glue injection groove of the first insulator and then placed in an oven for solidification, and then the conductive glue is injected into the glue injection groove of the second insulator, and it is quickly assembled to the first insulator before the conductive glue solidifies, so that the lower surface of the second insulator is assembled to the upper surface of the first insulator and fixed to each other, and then they are placed in an oven together for solidification.

[0015] Compared with the prior art, the present invention has the following beneficial effects: the present invention forms glue injection grooves in both the first and second insulators, electrically connects the grounding piece to the first insulator first and injects conductive glue, then injects the conductive glue into the second insulator and quickly assembles it to the first insulator, thereby bonding the pins of the grounding piece to the grounding terminals in the first and second insulators through the conductive glue to form a stable electrical connection, so that the electrical connector has better grounding performance, which not only forms a stable electrical connection between the grounding piece and the grounding terminal, but also does not affect the signal transmission of other signal terminals, thereby facilitating the efficient transmission of high-frequency signals.

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 A three-dimensional view of the electrical connector from another angle.

[0018] Figure 3 yes Figure 1 A partially disassembled perspective view of the electrical connector is shown.

[0019] Figure 4 yes Figure 3 A partially disassembled stereoscopic view of the terminal module shown.

[0020] Figure 5 yes Figure 4 A three-dimensional image from another angle.

[0021] Figure 6 yes Figure 4 A three-dimensional diagram showing the grounding element being installed in the first insulator but the first conductive adhesive not yet installed.

[0022] Figure 7 yes Figure 6 A three-dimensional diagram after the first conductive adhesive is loaded and then the second conductive adhesive is loaded into the second adhesive injection groove.

[0023] Figure 8 yes Figure 7 A partial enlargement from another perspective.

[0024] Fig. 9 yes Figure 1 Cross-sectional view along the AA direction.

[0025] Fig.10 yes Figure 1 Cross-sectional view along direction BB.

[0026]

Main component symbol description

[0027] Electrical connector 100 Insulation body 1

[0028] Base 11 Docking tongue 12

[0029] Insulation frame 13 First insulator 14

[0030] Grounding piece receiving groove 140 First glue injection groove 141

[0031] Second insulator 15 Second glue injection groove 151

[0032] Conductive terminal 2 First row terminal 21

[0033] Ground terminal 21G Second row terminal 22

[0034] Ground terminal 22G Grounding piece 3

[0035] Strip portion 30 First spring piece 31

[0036] The first front spring piece 311 and the first rear spring piece 312

[0037] Second spring piece 32 Frame opening 33

[0038] Beam 34 Conductive adhesive 4

[0039] The first conductive adhesive 41 and the second conductive adhesive 42

[0040] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. [Specific implementation method]

[0041] The following will be combined Figures 1 to 10 The specific implementation of the present invention is introduced. The present invention provides an electrical connector 100, which is used to be installed on a circuit board (not shown) to be mated with a docking connector (not shown). The electrical connector 100 includes a longitudinal insulating body 1, a conductive terminal 2 fixed to the insulating body 1, a grounding member 3 placed in the insulating body 1, and a conductive adhesive 4 for electrically connecting the grounding member 3 to the grounding terminals 21G and 22G of the conductive terminal 2, so as to achieve a better grounding effect and facilitate signal transmission.

[0042] See also Figures 1 to 4 The insulating body 1 includes a base 11 and a docking tongue 12 extending from the base 11. Specifically, the insulating body 1 includes an insulating frame 13, a first insulator 14 and a second insulator 15. The docking tongue 12 is formed by the front of the insulating frame 13, the first insulator 14 and the second insulator 15. The base 11 is formed by the rear of the insulating frame 13, the first insulator 14 and the second insulator 15. The first row and the second row of conductive terminals 21, 22 and the first and second insulators 14, 15 and the grounding member 3 form a terminal module (not numbered). The terminal module is assembled to the insulating frame 13 from the back to the front to form the electrical connector 100. The first insulator 14 and the second insulator 15 are both provided with a plurality of glue injection grooves (not numbered) and a plurality of terminal receiving grooves (not numbered), and the glue injection grooves are filled with conductive glue 4. Specifically, the glue injection groove includes a first glue injection groove 141 provided on the first insulator 14 and a second glue injection groove 151 provided on the second insulator 15. The first glue injection groove 141 of the first insulator 14 is an arc-shaped groove expanding outward, and the second glue injection groove 151 of the second insulator 15 is a rectangular groove. The first insulator 14 is also provided with a grounding member receiving groove 140 recessed inward from its top surface for receiving the grounding member 3. The first glue injection groove 141 is located below the grounding member receiving groove 140. The conductive glue 4 can be injected into the gap between the first glue injection groove 141 and the grounding terminal receiving groove of the first insulator 14. The conductive glue can also be injected into the gap between the second glue injection groove 151 and the grounding terminal receiving groove of the second insulator 15, so as to stably connect the grounding member 3 and the grounding terminals 21G and 22G.

[0043] The conductive terminal 2 includes a plurality of signal terminals (not numbered) and a plurality of ground terminals 21G, 22G. Specifically, the conductive terminal 2 includes a first row of terminals 21 and a second row of terminals 22 respectively located on two surfaces of the docking tongue plate 12. The first row of terminals 21 and the second row of terminals 22 are both provided with the signal terminals and the ground terminals 21G, 22G. The first row of terminals 21 is fixed on the lower surface of the first insulator 14, the grounding member 3 is installed on the upper surface of the first insulator 14, the first insulator 14 is provided with the first glue injection groove 141 penetrating the upper surface of the first insulator 14; the second row of terminals 22 is fixed on the upper surface of the second insulator 15, the second insulator 15 is provided with the second glue injection groove 151 penetrating the lower surface thereof; the upper surface of the first insulator 14 is assembled to the lower surface of the second insulator 15 and fixed to each other.

[0044] Combination Figures 5 to 10The grounding member 3 is located between the first and second rows of terminals 21 and 22 and can be electrically connected to the grounding terminals 21G and 22G in the first and second rows of terminals 21 and 22. The grounding member 3 is provided with a plurality of pins (not numbered), and the conductive adhesive 4 adheres the pins and the grounding terminals 21G and 22G. The pins of the grounding member 3 pass through the first and second adhesive injection grooves 141 and 151 corresponding to each other and contact the corresponding grounding terminals 21G and 22G. Specifically, the pins of the grounding member 3 include a plurality of first elastic sheets 31 extending downward and a plurality of second elastic sheets 32 extending upward. The first elastic sheets 31 press against the grounding terminals 21G in the first row of terminals 21, and the second elastic sheets 32 press against the grounding terminals 22G in the second row of terminals 22. The first elastic piece 31 includes a front first elastic piece 311 extending from front to rear and a rear first elastic piece 312 extending from rear to front. The front first elastic piece 311 and the rear first elastic piece 312 are respectively pressed against the same grounding terminal 21G. The front first elastic piece 311 is located in the docking tongue plate 12, and the rear first elastic piece 312 is located in the base 11. The grounding member 3 also includes a pair of longitudinally arranged long strips 30 and a plurality of beams 34 whose two ends are respectively connected to the long strips 30. A frame opening 33 is formed between every two beams 34. The first and second elastic pieces 31 and 32 protrude downward and upward from the frame opening 33, respectively. The number of the first spring pieces 31 is greater than that of the second spring pieces 32. The second spring pieces 32 are all located on the same side of the middle of the long strip portion 30. A small part of the first spring pieces 31 is located on the same side of the second spring pieces 32, while most of them are located on the opposite side of the second spring pieces 32. Specifically, the number of the second spring pieces 32 is six, and the number of the first spring pieces 31 is twenty-six. Two of the second spring pieces 32 are located on the outermost sides, and the other four are spaced apart from the four first spring pieces 31 close to the two outermost sides.

[0045] The conductive glue 4 includes a first conductive glue 41 that electrically connects the first spring piece 31 to the ground terminal 21G of the first row of terminals 21 in the first glue injection groove 141, and a second conductive glue 42 that electrically connects the second spring piece 32 to the ground terminal 22G of the second row of terminals 22 in the second glue injection groove 151. Specifically, the first conductive glue 41 is first injected into the first glue injection groove 141, and then put into an oven to solidify, and then the second conductive glue 42 is injected into the second glue injection groove 151, and then quickly assembled onto the first insulator 14, so that the second conductive glue 42 electrically connects the second spring piece 32 to the ground terminal 22G of the second row of terminals 22, so that the entire grounding member 3 forms a stable electrical connection with all the grounding terminals 21G and 22G, achieving a better grounding effect, which is beneficial for the signal terminal to transmit high-frequency signals.

[0046] Please refer to Figures 1 to 10 , the manufacturing method of the electrical connector 100 of the present invention is as follows:

[0047] The first step is to provide an insulating body 1 and a conductive terminal 2, wherein the insulating body 1 is provided with a glue injection groove, and the conductive terminal 2 includes a signal terminal and a ground terminal 21G, 22G; the insulating body 1 includes an insulating frame 13, a first insulator 14 and a second insulator 15, and the conductive terminal 2 includes a first row of terminals 21 and a second row of terminals 22, wherein the first row of terminals 21 is fixed on the lower surface of the first insulator 14, and the first insulator 14 is provided with the above-mentioned first glue injection groove 141 penetrating the upper surface of the first insulator 14; the second row of terminals 22 is fixed on the upper surface of the second insulator 15, and the second insulator 15 is provided with the above-mentioned second glue injection groove 151 penetrating its lower surface.

[0048] The first step is to provide a grounding member 3, wherein the grounding member 3 has a plurality of protruding pins, and the plurality of pins pass through corresponding glue injection grooves and press against corresponding grounding terminals 21G and 22G, and the grounding member 3 is installed on the upper surface of the first insulator 14. Specifically, the grounding member 3 is located between the first row and the second row of terminals 21 and 22. The pins of the grounding member 3 pass through the corresponding first and second glue injection grooves 141 and 151 and contact the corresponding grounding terminals 21G and 22G. The pins of the grounding member 3 include a plurality of first elastic sheets 31 extending downward and a plurality of second elastic sheets 32 extending upward, wherein the first elastic sheet 31 extends to the first glue injection groove 141 and presses against the grounding terminal 21G in the first row of terminals 21, and the second elastic sheet 32 ​​extends to the second glue injection groove 151 and presses against the grounding terminal 22G in the second row of terminals 22.

[0049] The third step is to provide a conductive glue 4, and inject the conductive glue 4 into the first and second glue injection grooves 141 and 151 to bond the grounding member 3 and the grounding terminals 21G and 22G. Specifically, the conductive glue 4 includes a first conductive glue 41 that electrically connects the first spring piece 31 to the grounding terminal 21G of the first row of terminals 21 in the first glue injection groove 141, and a second conductive glue 42 that electrically connects the second spring piece 32 to the grounding terminal 22G of the second row of terminals 22 in the second glue injection groove 151; the first conductive glue 41 is first injected into the first glue injection groove 141 and then placed in an oven for solidification, and then the second conductive glue 42 is injected into the second glue injection groove 151, and is quickly assembled to the first insulator 14 before the conductive glue 4 is solidified, so that the lower surface of the second insulator 15 is assembled to the upper surface of the first insulator 14 and fixed to each other, and then placed in an oven for further solidification.

[0050] Thus, the present invention forms the first and second glue injection grooves 141 and 151 in the first and second insulators 14 and 15, and first electrically connects the grounding member 3 to the first glue injection groove 141 and injects the first conductive glue 41, so as to electrically connect the first spring piece 31 and the grounding terminal 21G of the first row of terminals 21, and then injects the second conductive glue 42 into the second glue injection groove 151 and quickly assembles it to the first insulator 14 before the second conductive glue 42 solidifies, so that the second conductive glue 42 can electrically connect the grounding terminal 22G of the second row of terminals 22 to the second spring piece 32 of the grounding member 3, so that the grounding member 3 and the grounding terminals 21G and 22G in the first and second insulators 14 and 15 form an integrated electrical connection, so that the electrical connector 100 has better grounding performance, and finally, not only can a stable electrical connection be formed between the grounding member 3 and the grounding terminals 21G and 22G, but also the signal transmission of other signal terminals will not be affected, thereby facilitating the efficient transmission of high-frequency signals.

[0051] The above descriptions are only some embodiments of the present invention, not all embodiments. Any equivalent changes made to the technical solution of the present invention by ordinary technicians in this field after reading the specification of the present invention are covered by the claims of the present invention.

Claims

1. An electrical connector, comprising an insulating body, conductive terminals fixed to the insulating body, and a grounding member disposed in the insulating body, wherein the conductive terminals include a plurality of signal terminals and a plurality of grounding terminals, the grounding member is provided with a plurality of pins, the insulating body includes a base and a docking tongue extending from the base, the conductive terminals include a first row of terminals and a second row of terminals respectively disposed on two surfaces of the docking tongue, and the grounding member is disposed between the first row of terminals and the second row of terminals; characterized in that: The insulating body is provided with a plurality of glue injection grooves, and the pins of the grounding member pass through the corresponding glue injection grooves one by one and contact the corresponding grounding terminal; the glue injection grooves are filled with conductive glue, and the conductive glue sticks the pins and the grounding terminal, and the pins of the grounding member include a plurality of first spring sheets extending downward, and the first spring sheets press against the grounding terminals in the first row of terminals, and the first spring sheets include a plurality of front first spring sheets located in the docking tongue plate and a plurality of rear first spring sheets located in the base, and the front first spring sheets and the rear first spring sheets respectively press against the same grounding terminal.

2. The electrical connector according to claim 1, wherein: The pins of the grounding member include a plurality of second elastic sheets extending upward, and the second elastic sheets press against the grounding terminals in the second row of terminals.

3. The electrical connector according to claim 2, wherein: The front first elastic sheet extends from front to back, and the rear first elastic sheet extends from back to front.

4. The electrical connector according to claim 1, wherein: The insulating body includes an insulating frame, a first insulator and a second insulator, the conductive terminals include a first row of terminals and a second row of terminals, the first row of terminals are fixed on the lower surface of the first insulator, the grounding piece is installed on the upper surface of the first insulator, the first insulator is provided with the above-mentioned glue injection groove penetrating the upper surface of the first insulator; the second row of terminals are fixed on the upper surface of the second insulator, and the second insulator is provided with the above-mentioned glue injection groove penetrating its lower surface; the upper surface of the first insulator is assembled to the lower surface of the second insulator and fixed to each other; the conductive glue is respectively injected into the above-mentioned glue injection grooves.

5. The electrical connector according to claim 4, wherein: The glue injection groove of the first insulator is an arc-shaped groove expanding outward, and the glue injection groove of the second insulator is a rectangular shape.

6. The electrical connector according to claim 2, wherein: The grounding member further comprises a pair of longitudinally arranged long strips and a plurality of cross beams respectively connected to the long strips at both ends, a frame opening is formed between every two cross beams, and the first and second spring sheets respectively protrude downward and upward from the frame opening.

7. The electrical connector according to claim 6, wherein: The number of the first spring sheets is greater than that of the second spring sheets, the second spring sheets are all located on the same side of the middle of the long strip portion, a small portion of the first spring sheets are located on the same side as the second spring sheets, and most of them are located on the opposite side of the second spring sheets.

8. A method for manufacturing an electrical connector, comprising: The first step is to provide an insulating body and a conductive terminal, wherein the insulating body includes a base and a docking tongue extending from the base and provided with a glue injection groove, and the conductive terminal includes a first row of terminals and a second row of terminals respectively located on two surfaces of the docking tongue, and includes a signal terminal and a ground terminal; The second step is to provide a grounding member, the grounding member is located between the first row and the second row of terminals and has a plurality of protruding pins, the plurality of pins pass through corresponding glue injection grooves and press against corresponding grounding terminals, the pins of the grounding member include a plurality of first spring sheets extending downward, the first spring sheets press against the grounding terminals in the first row of terminals, the first spring sheets include a plurality of front first spring sheets located in the docking tongue plate and a plurality of rear first spring sheets located in the base, the front first spring sheets and the rear first spring sheets respectively press against the same grounding terminal; The third step is to provide conductive glue, and inject the conductive glue into the glue injection groove to bond the grounding member and the grounding terminal.

9. The method for manufacturing an electrical connector according to claim 8, wherein: In the first step, the insulating body includes an insulating frame, a first insulator and a second insulator, the first row of terminals is fixed on the lower surface of the first insulator, the grounding piece is installed on the upper surface of the first insulator, and the first insulator is provided with the above-mentioned glue injection groove penetrating the upper surface of the first insulator; the second row of terminals is fixed on the upper surface of the second insulator, and the second insulator is provided with the above-mentioned glue injection groove penetrating its lower surface.

10. The method for manufacturing an electrical connector according to claim 9, wherein: In the third step, the conductive glue is first injected into the glue injection groove of the first insulator and then placed in an oven to solidify. The conductive glue is then injected into the glue injection groove of the second insulator and quickly assembled to the first insulator before the conductive glue solidifies. In this way, the lower surface of the second insulator is assembled to the upper surface of the first insulator and fixed to each other. Finally, they are placed in an oven together for solidification.

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