Electric connector terminal and electric connector

Abstract

The utility model relates to the field of electric connectors, in particular to an electric connector terminal and an electric connector. The electric connector terminal comprises a base part, an elastic arm arranged at the upper end of the base part and a welding pin arranged at the lower end of the base part. And the elastic arm is conductively connected with the female end of the electric connector. The welding pin is used for welding and fixing with a conductive structure of the male end of the electric connector. The side surface of the base part is provided with an elastic claw which is matched with an elastic claw avoiding groove of an insulating main body of the male end of the electric connector; the elastic claw can retract to avoid interference with the insulation main body when the electric connector terminal is assembled into the insulation main body, and can also reset and extend into the elastic claw avoiding groove after assembly is completed, and the claw end of the elastic claw abuts against the upper groove face or the lower groove face of the elastic claw avoiding groove to achieve the limiting effect. Through the above arrangement, warpage of the insulation main body caused by assembling the electric connector terminal and the insulation main body by means of interference and forced installation can be avoided.

Description

Technical Field

[0001] The utility model belongs to the field of electric connectors, and in particular relates to an electric connector terminal and an electric connector. Background Art

[0002] Socket connector is a connector product used in the chip field, usually used for signal transmission and energy transmission between chips and PCB motherboards. Most existing socket connectors include an insulating body and several terminals arranged in an array. Figure 1 As shown, the existing socket connector terminals are provided with a plurality of clamping points so as to interfere with the clamping point grooves on the insulating body to form a whole. However, the socket connector assembled in this way is difficult to meet the current increasingly high pin number requirements.

[0003] First, the interference force installation between the terminal and the insulation body will cause greater stress on the insulation body. As the number of pins increases, the stress on the insulation body will also accumulate. When the stress accumulates to a certain extent, the insulation body will warp. After the terminal undergoes processes such as reflow soldering, the degree of warping of the insulation body will be further aggravated.

[0004] Secondly, interference installation requires high precision of part dimensions. If the interference between the terminal and the insulation body is too small, the terminal retention force may be insufficient, which may cause the connector to fall off. If the interference is too large, the stress on the insulation body will increase, which will aggravate the warping of the insulation body. Therefore, the existing socket connectors have extremely high precision requirements on the size of the terminal clamping point and the size of the insulation body clamping point slot, which leads to increased processing costs.

[0005] Finally, as the number of pins required for socket connectors increases, the node spacing on the connector will also decrease. As the spacing decreases, the terminals using the above interference forced mounting structure have to become narrower to adapt to the smaller assembly space. This will cause the impedance on the terminal to increase, which in turn affects the transmission rate of the connector. Utility Model Content

[0006] The utility model aims to provide an electrical connector terminal, which is used to avoid the use of interference and forced installation means to assemble the electrical connector terminal and the insulating body. The utility model also aims to provide an electrical connector, which is used to avoid the use of interference and forced installation means to assemble the electrical connector terminal and the insulating body.

[0007] The utility model adopts the following technical solutions:

[0008] An electrical connector terminal comprises a base, an elastic arm arranged at the upper end of the base and a welding foot arranged at the lower end of the base, wherein the elastic arm is used to be conductively connected to the female end of the electrical connector, and the welding foot is used to be welded and fixed to the conductive structure of the male end of the electrical connector; a spring claw is provided on the side surface of the base for cooperating with the spring claw avoidance groove of the insulating body of the male end of the electrical connector; the spring claw can be retracted when the electrical connector terminal is assembled into the insulating body to avoid interference with the insulating body, and can also be reset and extended into the spring claw avoidance groove after the assembly is completed, and the limiting effect is achieved by abutting the claw end against the upper groove surface or the lower groove surface of the spring claw avoidance groove.

[0009] Beneficial effects: The utility model is improved on the basis of the existing electrical connector terminals. The electrical connector terminals described in the utility model can avoid interference and forced installation between the electrical connector terminals and the insulating body during assembly through the setting of the spring claws, and effectively limit the displacement of the electrical connector terminals in the insulating body along the upper end and / or lower end thereof after the assembly is completed. The above technical scheme can effectively avoid the large stress on the insulating body caused by interference and forced installation, thereby avoiding the warping of the connector insulating body due to stress accumulation when the number of pins increases. At the same time, because the spring claws can avoid the interference area on the insulating body when the electrical connector terminals are installed, they do not require too high processing accuracy. When the electrical connector terminals using spring claws are faced with smaller and smaller installation spaces, because the setting position of the spring claws is adjustable, the electrical connector terminals can be adaptively deformed to avoid the problem of increased connector impedance.

[0010] Furthermore: the spring claw is arranged obliquely outward and extends toward the upper end of the electrical connector to limit the displacement of the electrical connector terminal in the insulating body along the upper end direction thereof; a stopping structure is also provided on the base, and the stopping structure is used to stop and cooperate with a certain upward outer end surface of the insulating body to limit the displacement of the electrical connector terminal in the insulating body along the lower end direction thereof.

[0011] Beneficial effect: By adopting the above technical solution, the displacement of the electrical connector terminal in the insulating body along the lower end direction thereof can be limited by the stop structure, and the displacement of the electrical connector terminal in the insulating body along the upper end direction thereof can be limited by the spring claw. The limit structure is further simplified, and the processing cost is effectively reduced.

[0012] Furthermore: there are more than two spring claws.

[0013] Beneficial effect: By adopting the above technical solution, the limiting effect of the spring claw can be made more reliable.

[0014] Furthermore: the stopping structure is a stop boss which is arranged above the spring claw and extends outward.

[0015] Beneficial effect: The above technical solution can simplify the technical solution of the stopper structure. When the space for installing the terminal on the insulating body is reduced due to the increase in the number of pins of the electrical connector, the base width of the terminal of the electrical connector will be reduced accordingly. The stopper boss is arranged at the upper end of the spring claw and extends outward, so that it can avoid the influence of the reduction of the base width when it is stopped and matched with a certain upward outer end surface of the insulating body.

[0016] Furthermore: the base also includes a bent extension arm bent out from its side.

[0017] Beneficial effect: By adopting the above technical solution, side arms can be added on both sides of the base to widen the base, thereby reducing the defect of high impedance of the traditional structure and optimizing high-frequency transmission performance.

[0018] Furthermore, two bending extension arms are provided; they can be bent in the same direction so that the base forms a U-shaped structure, or they can be bent in opposite directions so that the base forms a Z-shaped structure.

[0019] Beneficial effect: Through the above arrangement, the electrical connector terminal can be adapted to a variety of application scenarios.

[0020] Furthermore: the spring claw is arranged on the bent extension arm.

[0021] Beneficial effect: When the space for installing the terminals on the insulating body of the electrical connector decreases due to an increase in the number of pins, the base width of the electrical connector terminal will decrease accordingly. The spring claw is set on the bent extension arm to avoid the impact of the reduction in the base width.

[0022] Furthermore, the lower end of the bent extension arm is bent to form a guide bent edge so as to guide the electric connector terminal to be inserted into the insulating body.

[0023] Beneficial effect: The above arrangement can facilitate the guiding and insertion of the electrical connector terminal into the insulating body.

[0024] Furthermore, the side edge of the bent extension arm is processed with a guiding slope to guide the electric connector terminal to be inserted into the insulating body.

[0025] Beneficial effect: The above arrangement can facilitate the guiding and insertion of the electrical connector terminal into the insulating body.

[0026] An electrical connector comprises an insulating body and a plurality of electrical connector terminals, wherein an assembly structure is arranged on the insulating body so that the electrical connector terminals can be fixedly assembled in the insulating body; the electrical connector terminals comprise a base, an elastic arm arranged at the upper end of the base and a welding foot arranged at the lower end of the base, wherein the elastic arm is used for being conductively connected to the female end of the electrical connector, and the welding foot is used for being welded and fixed to the conductive structure of the male end of the electrical connector; an elastic claw is arranged on the side surface of the base for cooperating with the elastic claw avoidance groove of the insulating body of the male end of the electrical connector; the elastic claw can be retracted when the electrical connector terminal is assembled into the insulating body to avoid interfering with the insulating body, or it can be reset and extended into the elastic claw avoidance groove after the assembly is completed, and the limiting effect is achieved by abutting the claw end against the upper groove surface or the lower groove surface of the elastic claw avoidance groove.

[0027] Beneficial effects: The utility model is improved on the basis of the existing electrical connector. The electrical connector described in the utility model can avoid interference between the electrical connector terminal and the insulating body during assembly through the setting of the spring claw, and effectively limit the displacement of the electrical connector terminal in the insulating body along its upper end and / or lower end. The above technical solution can effectively avoid the problems of connector insulation body warping caused by interference and forced installation, extremely high precision requirements for connector-related assembly structures, and possible increase in impedance of connectors with high pin count requirements.

[0028] Furthermore: the spring claw is arranged obliquely outward and extends toward the upper end of the electrical connector to limit the displacement of the electrical connector terminal in the insulating body along the upper end direction thereof; a stopping structure is also provided on the base, and the stopping structure is used to stop and cooperate with a certain upward outer end surface of the insulating body to limit the displacement of the electrical connector terminal in the insulating body along the lower end direction thereof.

[0029] Beneficial effect: By adopting the above technical solution, the displacement of the electrical connector terminal in the insulating body along the lower end direction thereof can be limited by the stop structure, and the displacement of the electrical connector terminal in the insulating body along the upper end direction thereof can be limited by the spring claw. The limit structure is further simplified, and the processing cost is effectively reduced.

[0030] Furthermore: there are more than two spring claws.

[0031] Beneficial effect: The above technical solution can enhance the limiting effect of the spring claw.

[0032] Furthermore: the stopping structure is a stop boss which is arranged above the spring claw and extends outward.

[0033] Beneficial effect: The above technical solution can simplify the technical solution of the stopper structure. When the space for installing the terminal on the insulating body is reduced due to the increase in the number of pins of the electrical connector, the base width of the terminal of the electrical connector will be reduced accordingly. The stopper boss is arranged at the upper end of the spring claw and extends outward, so that it can avoid the influence of the reduction of the base width when it is stopped and matched with a certain upward outer end surface of the insulating body.

[0034] Furthermore: the base also includes a bent extension arm bent out from its side.

[0035] Beneficial effect: By adopting the above technical solution, side arms can be added on both sides of the base to widen the base, thereby reducing the defect of high impedance of the traditional structure and optimizing high-frequency transmission performance.

[0036] Furthermore, two bending extension arms are provided; they can be bent in the same direction so that the base forms a U-shaped structure, or they can be bent in opposite directions so that the base forms a Z-shaped structure.

[0037] Beneficial effect: Through the above arrangement, the electrical connector terminal can be adapted to a variety of application scenarios.

[0038] Furthermore: the spring claw is arranged on the bent extension arm.

[0039] Beneficial effect: When the space for installing the terminals on the insulating body of the electrical connector decreases due to an increase in the number of pins, the base width of the electrical connector terminal will decrease accordingly. The spring claw is set on the bent extension arm to avoid the impact of the reduction in the base width.

[0040] Furthermore, the lower end of the bent extension arm is bent to form a guide bent edge so as to guide the electric connector terminal to be inserted into the insulating body.

[0041] Beneficial effect: The above arrangement can facilitate the guiding and insertion of the electrical connector terminal into the insulating body.

[0042] Furthermore, the side edge of the bent extension arm is processed with a guiding slope to guide the electric connector terminal to be inserted into the insulating body.

[0043] Beneficial effect: The above arrangement can facilitate the guiding and insertion of the electrical connector terminal into the insulating body. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 The prior art electrical connector terminal structure described in the background technology;

[0045] Figure 2 This is an axial view of the electrical connector embodiment 1 of the utility model;

[0046] Figure 3 for Figure 2 View along another off-axis direction;

[0047] Figure 4 for Figure 2 The axial view of the terminal of the Chinese electric connector;

[0048] Figure 5 for Figure 2 off-axis view in another direction;

[0049] Figure 6 A cross-sectional view of the electrical connector terminal after mating with the mounting hole of the insulating body in Embodiment 3;

[0050] Figure 7 It is a schematic diagram of the cooperation between the through slot of the electrical connector terminal and the stop boss of the insulating body in Embodiment 3;

[0051] Figure 8 is an axial outward view of the electrical connector terminal in Embodiment 4;

[0052] The names of the components corresponding to the corresponding figure marks in the figure are: 1. Insulating body; 2. Electrical connector terminal; 3. Base; 4. Bending extension arm; 5. Spring arm; 6. Spring claw; 7. Stop boss; 8. Guide slope; 9. Stop groove; 10. Welding foot; 11. Guide bent edge; 12. Through groove. DETAILED DESCRIPTION

[0053] The features and performance of the utility model are further described in detail below in conjunction with the embodiments. It should be noted that the words such as up, down, left, right, front, and back mentioned in the text are provided for the convenience of description and do not represent the actual position of the product.

[0054] Embodiment 1 of the electric connector in the utility model:

[0055] like Figure 2 , Figure 3 The electrical connector shown includes an insulating body 1 and 96 electrical connector terminals 2 assembled on the insulating body 1. The electrical connector terminals 2 are specifically arranged in parallel in 12 rows. Two adjacent rows of terminals are staggered to maximize the use of the space of the insulating body 1. The two rows of terminals adjacent to a row of terminals are aligned with each other to facilitate installation. Obviously, multiple insulating bodies 1 can be set on the electrical connector, and the number of electrical connector terminals 2 on a single insulating body 1 can be more or less than 96. On this basis, the electrical connector terminals 2 can also be arranged in non-rows, such as in a multi-circle circumference. The electrical connector terminals 2 arranged in rows can also be non-parallel. The electrical connector terminals 2 can also be arranged in parallel in 13 rows or more, or less than 12 rows. Any pair of adjacent rows of terminals can also be arranged in an aligned arrangement instead of being staggered. The adjacent rows of terminals on both sides of any row of terminals can also be arranged in a non-aligned manner, but continue to be staggered.

[0056] like Figure 4-5 As shown, the electric connector terminal 2 includes a base 3, an elastic arm 5 arranged at the upper end of the base 3, and a welding foot 10 arranged at the lower end of the base 3. The base 3, the elastic arm 5, and the welding foot 10 are integrally formed by a sheet metal process. The base 3 includes a base body and a bent extension arm 4 extending in the same direction on both sides of the base body. The bent extension arm 4 and the base body form a U-shaped base 3 to reduce the impedance on the electric connector terminal 2. In this embodiment, the male end of the electric connector is a PCB board, and the female end of the electric connector is a conductive abutment point on the chip. A solder ball is provided at a position on the PCB board corresponding to the welding of the electric connector terminal to weld with the electric connector terminal. The elastic arm 5 of the electric connector terminal 2 is tilted and cantilevered from the upper end edge of the base body so as to abut and be conductively connected with the conductive abutment point on the chip. The welding foot 10 is a round piece cantilevered from the lower end edge of the base body so that the electric connector terminal 2 can be fixed to the PCB board by the aforementioned solder ball after being assembled into the insulating body 1. It is easy to imagine that the bending extension arm 4 can also be arranged only on one side of the base body; or the two bending extension arms 4 can also extend in opposite directions, so that the base 3 forms a Z-shaped structure. On this basis, the elastic arm 5 can also be tilted and cantilevered from the upper edge of the bending extension arm 4; the welding foot 10 can also be tilted and cantilevered from the lower edge of the bending extension arm 4. The bending extension arm 4 is obtained by bending through a sheet metal process. In this way, the base body and the two bending extension arms 4 can form an integrated U-shaped structure to reduce the impedance on the base 3. The outer surfaces of the two bending extension arms 4 are respectively processed with an outwardly inclined elastic claw 6 by a sheet metal process. The elastic claw 6 extends upward so as to cooperate with the limiting structure on the insulating body 1 to limit the upward displacement of the electrical connector terminal 2 in the insulating body 1. It is easy to imagine that a plurality of elastic claws 6 can be respectively arranged on the outer surfaces of the two bending extension arms 4; correspondingly, the insulating body 1 also has a plurality of limiting structures to cooperate with them. The two sides of the base body of the electrical connector terminal 2 above the spring claws 6 extend outwardly with stop bosses 7 to cooperate with an upward outer end surface of the insulating body 1 to limit the downward displacement of the electrical connector terminal 2 in the insulating body 1.

[0057] The insulating body 1 is provided with a plurality of square mounting holes corresponding to the electric connector terminals 2 so as to adaptably insert the above-mentioned electric connector terminals 2. A stop groove 9 is provided at the upper end of the inner wall of the square mounting hole relative to the bent extension arm 4 of the electric connector terminal 2 so as to limit the downward displacement of the electric connector terminal 2 in the insulating body 1 by abutting the bottom of the stop groove 9 with the lower end surface of the stop boss 7 of the electric connector terminal 2. A spring claw avoidance groove is also provided on the inner wall so that the claw end of the spring claw 6 of the electric connector terminal 2 abuts against the upper groove surface of the spring claw avoidance groove to limit the upward displacement of the electric connector terminal 2 in the insulating body 1.

[0058] Preferably, a guide bend 11 is bent at the lower end of the bent extension arm 4 , and a guide slope 8 is processed on the side of the bent extension arm 4 to guide the electrical connector terminal 2 to be inserted into the insulating body 1 .

[0059] During assembly, the electrical connector terminal 2 is vertically inserted into the mounting hole of the insulating body 1. At this time, the spring claw 6 on the electrical connector terminal 2 is retracted inward by the inner wall of the mounting hole to avoid interference during assembly. After the electrical connector terminal 2 is installed to the predetermined position, the spring claw 6 is reset and extends into the spring claw avoidance groove on the side wall of the mounting hole. At this time, the end of the spring claw 6 of the electrical connector terminal 2 just abuts against the upper groove surface of the spring claw avoidance groove, or there is a small gap between the two. When the electrical connector terminal 2 has a tendency to slip out upward, the claw end of the spring claw 6 of the electrical connector terminal 2 abuts against the upper groove surface of the spring claw avoidance groove to limit the upward displacement of the electrical connector terminal 2 in the insulating body 1. At the same time, the lower end surface of the stop boss 7 of the electrical connector terminal 2 just abuts against the bottom of the stop groove 9, or there is a small gap between the two. When the electrical connector terminal 2 has a tendency to slip out downward, the lower end surface of the stop boss 7 of the electrical connector terminal 2 abuts against the bottom of the stop groove 9 to limit the downward displacement of the electrical connector terminal 2 in the insulating body 1. Through the above arrangement, it is possible to avoid using interference and forced assembly means to assemble the electrical connector terminal 2 and the insulating body 1.

[0060] Embodiment 2 of the electric connector in the utility model:

[0061] The difference between this embodiment and embodiment 1 is that in embodiment 1, the outer sides of the two bent extension arms 4 are respectively processed by sheet metal processing to have an outwardly inclined spring claw 6. The spring claw 6 extends upward. The electrical connector limits the upward displacement of the electrical connector terminal 2 in the insulating body 1 by abutting the claw end of the spring claw 6 of the electrical connector terminal 2 against the upper groove surface of the spring claw avoidance groove. In this embodiment, the outer sides of the two bent extension arms 4 are respectively processed by sheet metal processing to have two outwardly inclined spring claws 6. One of the spring claws 6 extends upward so that the claw end of the spring claw 6 abuts against the upper groove surface of the spring claw avoidance groove to limit the upward displacement of the electrical connector terminal 2 in the insulating body 1. The other spring claw 6 extends downward so that the claw end of the spring claw 6 abuts against the lower groove surface of the spring claw avoidance groove to limit the downward displacement of the electrical connector terminal 2 in the insulating body 1.

[0062] Embodiment 3 of the electric connector in the utility model:

[0063] The difference between this embodiment and embodiment 1 is that in embodiment 1, the stop structure is a stop boss 7 provided at the upper end of the base body and extending outward. Figure 6-7As shown, the stop structure is a through groove 12 arranged at the lower end of the base body and beside the bend between the base body and the welding leg 10. The opening of the through groove 12 is downward and passes through the lower edge of the base 3, so that the bottom of the through groove 12 relative to the opening direction serves as a stop surface to stop and cooperate with a certain upward outer end surface of the insulating body 1. A stop boss is arranged on the bottom end of the inner wall of the mounting hole on the insulating body 1. When the electrical connector terminal 2 is inserted into the insulating body 1, the stop boss extends from the opening of the through groove 12 of the electrical connector terminal 2 into the through groove 12, and the downward displacement of the electrical connector terminal 2 in the insulating body 1 is limited by its upper end surface and the stop cooperation with the bottom of the through groove 12.

[0064] Embodiment 4 of the electric connector in the utility model:

[0065] The difference between this embodiment and the first embodiment is that in the first embodiment, the base body further includes a bent extension arm 4 bent out of its side, and the spring claw 6 is arranged on the bent extension arm 4. Figure 8 As shown, the side edge of the base body is not bent out of the bent extension arm 4. The spring claw 6 is arranged on the base body. The spring claw avoidance groove on the insulating body 1 is also adaptively arranged on the inner wall of the mounting hole of the insulating body 1 corresponding to the outer surface of the base body.

[0066] Embodiments of the electric connector terminal in the utility model:

[0067] The embodiment of the electric connector terminal in the present invention is consistent with the electric connector terminal 2 described in the embodiments 1-4 of the electric connector, and thus will not be described in detail here.

[0068] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the description and drawings of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electrical connector terminal, comprising a base (3), an elastic arm (5) arranged at the upper end of the base (3), and a welding foot (10) arranged at the lower end of the base (3), wherein the elastic arm (5) is used for being conductively connected to the female end of the electrical connector, and the welding foot (10) is used for being welded and fixed to the conductive structure of the male end of the electrical connector; characterized in that: The side surface of the base (3) is provided with an elastic claw (6) for cooperating with the elastic claw avoidance groove of the insulating body (1) of the male end of the electrical connector; the elastic claw (6) can be retracted when the electrical connector terminal is assembled into the insulating body (1) to avoid interference with the insulating body (1), and can also be reset and extended into the elastic claw avoidance groove after assembly is completed, and the claw end thereof is pressed against the upper groove surface or the lower groove surface of the elastic claw avoidance groove to achieve a limiting effect.

2. The electrical connector terminal according to claim 1, characterized in that: The spring claw (6) is arranged obliquely outward and extends toward the upper end of the electrical connector to limit the displacement of the electrical connector terminal in the insulating body (1) along the direction of its upper end; a stop structure is also provided on the base (3), and the stop structure is used to stop and cooperate with a certain upward outer end surface of the insulating body (1) to limit the displacement of the electrical connector terminal in the insulating body (1) along the direction of its lower end.

3. The electrical connector terminal according to claim 1, characterized in that: There are more than two spring claws (6).

4. The electrical connector terminal according to claim 2, characterized in that: The blocking structure is a stop boss (7) which is arranged above the spring claw (6) and extends outward.

5. The electrical connector terminal according to any one of claims 2 to 4, characterized in that: The base (3) also includes a bent extension arm (4) bent out from a side edge thereof.

6. The electrical connector terminal according to claim 5, characterized in that: Two of the bent extension arms (4) are provided; they can be bent in the same direction so that the base (3) forms a U-shaped structure, and can also be bent in opposite directions so that the base (3) forms a Z-shaped structure.

7. The electrical connector terminal according to claim 5, characterized in that: The spring claw (6) is arranged on the bent extension arm (4).

8. The electrical connector terminal according to claim 5, characterized in that: The lower end of the bent extension arm (4) is bent to form a guide bent edge (11) so as to guide the electric connector terminal to be inserted into the insulating body (1).

9. The electrical connector terminal according to claim 5, characterized in that: The side edge of the bent extension arm (4) is machined with a guiding bevel (8) to facilitate guiding the electric connector terminal to be inserted into the insulating body (1).

10. An electrical connector, comprising an insulating body (1) and a plurality of electrical connector terminals (2), wherein the insulating body (1) is provided with an assembly structure so that the electrical connector terminals (2) are fixedly assembled in the insulating body (1); characterized in that: The electrical connector terminal (2) is the electrical connector terminal (2) according to any one of claims 1 to 9.

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