Connector

Abstract

The utility model discloses a connector. The connector comprises a body and a first terminal. The first terminal is cylindrical, the first terminal comprises an upper elastic arm, a lower elastic arm, a base part and an extension part, and the upper elastic arm and the lower elastic arm are connected through the base part and are opposite up and down; the upper elastic arm comprises a plurality of upper arm parts and an upper connecting part, the plurality of upper arm parts are vertically arranged at intervals and are connected end to end through the upper connecting part, the lower elastic arm comprises a plurality of lower arm parts and a lower connecting part, and the plurality of lower arm parts are vertically arranged at intervals and are connected end to end through the lower connecting part; the extension part is connected with the base part, the upper arm part and the lower arm part and is arranged side by side up and down, and the width of the extension part is larger than that of the upper arm part and that of the lower arm part in the up-down direction, so that the extension part can provide a good buffering effect when the upper elastic arm and the lower elastic arm are subjected to excessive positive force; it is ensured that the upper elastic arm and the lower elastic arm do not deform excessively due to the fact that the upper elastic arm and the lower elastic arm bear too large forward force, it is ensured that the first terminal can keep good connection stability in the final state, and the first terminal has good elasticity.

Description

Technical Field

[0001] The utility model relates to a connector, in particular to a connector for electrically connecting a docking element and a circuit board.

Background Art

[0002] A related prior art discloses a connector, which has a body and a plurality of conductive terminals. The conductive terminals have a first ridge, a second ridge, and a plurality of ribs integrally connected to the first ridge and the second ridge and arranged at intervals in the up and down direction with a relatively small width. The widths of the plurality of ribs are substantially the same. The upper end of the first ridge has a contact portion. The first ridge has a first side edge and a second side edge opposite to each other in the left and right directions. The ribs spiral upward from the first side edge to the second ridge. The second side edge has a first contact portion and a second contact portion. The lower end of the second ridge has a conducting portion. When the contact portion and the conducting portion are forced to approach each other in the up and down direction, the first ridge and the second ridge move toward each other in the up and down direction and contact each other through the first contact portion and the second contact portion.

[0003] However, when a too large positive force is applied in the up and down direction, since the widths of the plurality of ribs are the same, it is easy to cause the conductive terminals to be excessively deformed due to excessive pressure, reducing the stability of the conductive terminals. And due to the structure of the conductive terminals, their elasticity is limited, so the compression stroke of the conductive terminals is restricted.

[0004] Therefore, it is necessary to design a new connector to overcome the above defects.

Summary of the Invention

[0005] The creative purpose of the utility model is to provide a connector with a first terminal having better connection stability and elasticity.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A connector, the connector includes a body and a first terminal, the body has a receiving hole for receiving the first terminal, the receiving hole penetrates the body in the up and down direction, and is characterized in that: the first terminal is in a cylindrical shape, and the first terminal includes: an upper elastic arm, a lower elastic arm, a base portion and an extension portion, the upper elastic arm and the lower elastic arm are connected by the base portion, and the positions where the upper elastic arm and the lower elastic arm are connected to the base portion are opposite to each other in the up and down direction; the upper elastic arm includes a plurality of upper arm portions and at least one upper connecting portion, the plurality of upper arm portions are arranged at intervals in the up and down direction and are connected end to end through the upper connecting portion, the lower elastic arm includes a plurality of lower arm portions and at least one lower connecting portion, the plurality of lower arm portions are arranged at intervals in the up and down direction and are connected end to end through the lower connecting portion; the extension portion is connected to the base portion and is arranged side by side with the upper arm portion and the lower arm portion in the up and down direction, the upper arm portion at the end of the upper elastic arm away from the extension portion in the up and down direction protrudes with an upper contact portion, the lower arm portion at the end of the lower elastic arm away from the extension portion in the up and down direction protrudes with a lower contact portion, and in the up and down direction, the width of the extension portion is greater than the width of the upper arm portion and the width of the lower arm portion.

[0008] Further, the first terminal has a clamping portion extending outward from the end of the extension portion away from the base portion to the outside of its cylinder, and the clamping portion is clamped to the body.

[0009] Further, a connecting portion for connecting a strip is provided on the surface of the clamping portion on the opposite side away from the extension portion.

[0010] Further, the clamping portion has a blanking port that is recessed inward relative to the connecting portion on one side of the connecting portion in the up and down direction.

[0011] Further, the first terminal is formed by stamping and curling a metal sheet. When the first terminal is unfolded into a flat plate structure, the common extension length of the extension portion and the clamping portion is longer than the extension length of the upper arm portion and the extension length of the lower arm portion.

[0012] Further, the extension portion has a first portion, the first portion has a first edge and a second edge that are oppositely arranged in the up and down direction, and the first terminal has at least one limiting portion bent outward from the first edge, and the limiting portion is limited to the body.

[0013] Further, the distance from the one of the upper arm portion and the lower arm portion facing the first edge in the up and down direction to the first edge is greater than the distance from the other of the upper arm portion and the lower arm portion facing the second edge in the up and down direction.

[0014] Furthermore, the main body includes an upper body and a lower body that are separately formed, the receiving hole passes through the upper body and the lower body from top to bottom, the upper body and the lower body jointly limit the limiting portion, and a guide surface surrounding the receiving hole is provided on one side of the upper body and the lower body facing each other in the up and down directions corresponding to the receiving hole.

[0015] Furthermore, the main body comprises an upper body and a lower body which are formed separately, and a notch is recessed on a side of one of the upper body and the lower body facing the other, and the limiting portion is received in the notch.

[0016] Furthermore, the first terminal is stamped from a metal plate and curled into a cylindrical shape, and the first terminal has at least one opening stamped from the plate where the extension portion is located and at least one limiting portion corresponding to at least one of the openings, and the limiting portion is limited to the body.

[0017] Further, the connector is used to electrically connect a docking element and a circuit board. When the circuit board abuts upward against the lower contact portion to move the lower contact portion to a final position, the two upper and lower adjacent lower connection portions contact each other, and the base contacts the lower connection portions adjacent thereto. When the docking element presses the upper contact portion downward to move the upper contact portion to a final position, the two upper and lower adjacent upper connection portions contact each other, and the base contacts the upper connection portion adjacent thereto.

[0018] Further, the connector is used to electrically connect a docking element and a circuit board. When the circuit board abuts upward against the lower contact portion to move the lower contact portion to a final position, the extension portion contacts the lower connecting portion adjacent to it at the end away from the base. When the docking element presses downward against the upper contact portion to move the upper contact portion to a final position, the extension portion contacts the upper connecting portion adjacent to it at the end away from the base.

[0019] Further, the first terminal has a contact portion extending from a side of the base away from the extension portion and a docking portion extending from an end of the extension portion away from the base, the contact portion and the docking portion are arranged opposite to each other, the contact portion has a first side surface facing the docking portion and a contact point protruding from the first side surface toward the docking portion, the docking portion has a second side surface facing the contact portion and a docking point protruding from the second side surface toward the contact portion, the contact point is used to contact the first side surface, the docking point is used to contact the second side surface, and the docking point and the contact point are staggered up and down.

[0020] Further, the first terminal has an abutting portion extending from a side of the base portion away from the extending portion and a docking portion extending from an end of the extending portion away from the base portion. The abutting portion and the docking portion are disposed opposite to each other. The body extends into the receiving hole to form a supporting portion and a column extending upward from the supporting portion. The first terminal is sleeved outside the column, and at least one of the docking portion and the abutting portion is supported upward by the supporting portion.

[0021] Further, a second terminal is further included. The second terminal has a receiving space penetrating up and down. The first terminal is received in the receiving space, and the upper contact portion protrudes upward from the receiving space, and the lower contact portion protrudes downward from the receiving space. The second terminal is provided with a plurality of convex portions protruding into the receiving space, and the convex portions are used for contacting the first terminal.

[0022] Further, the second terminal is stamped and curled from a metal plate into a cylindrical shape. The second terminal includes a plurality of hollow portions, and the hollow portions and the convex portions are alternately arranged circumferentially around the first terminal.

[0023] Further, the first terminal has an abutting portion extending from a side of the base portion away from the extending portion, and a docking portion extending from an end of the extending portion away from the base portion. The abutting portion and the docking portion are disposed opposite to each other. The sizes of both the abutting portion and the docking portion in the up and down direction are greater than the size of the extending portion in the up and down direction and the size of the base portion in the up and down direction. At least part of the convex portions contact the abutting portion and the docking portion.

[0024] Compared with the prior art, the connector of the present utility model has the following beneficial effects:

[0025] The upper elastic arm and the lower elastic arm are connected by the base portion and their positions are relatively upper and lower with respect to the base portion. The base portion connects the extending portion. In the up and down direction, the extending portion, the upper arm portion adjacent to the extending portion in the upper elastic arm, and the lower arm portion adjacent to the extending portion in the lower elastic arm are arranged side by side. In the up and down direction, when the first terminal is subjected to an excessive positive force, since the width of the extending portion is greater than the widths of the upper arm portion and the lower arm portion, the extending portion can provide a good buffering effect when the upper elastic arm and the lower elastic arm are subjected to force, ensuring that the upper elastic arm and the lower elastic arm will not be excessively deformed up and down due to bearing an excessive positive force, and ensuring that the first terminal can maintain good connection stability in the final state. And since the adjacent upper arm portions and the adjacent lower arm portions are connected end to end, the first terminal has good elasticity and the compression stroke can be freely compressed.

Description of the Drawings

[0026] Figure 1 Stereogram of one of the first terminals of the first embodiment of the connector of the present utility model separated from the body;

[0027] Figure 2 It is Figure 1 Stereogram of the first terminal in;

[0028] Figure 3 It is Figure 2 Developed schematic diagram of the first terminal in;

[0029] Figure 4 It is Figure 1 Cross-sectional view of the connector in installed on the circuit board before and the docking element crimping the front edge of the connector along the line A-A;

[0030] Figure 5 It is Figure 4 Schematic diagram of the connector in installed on the circuit board after and the docking element crimping the connector;

[0031] Figure 6 It is Figure 1 Cross-sectional view of the connector in installed on the circuit board after and the docking element crimping the connector along the line B-B;

[0032] Figure 7 Stereogram of one of the first terminals of the second embodiment of the connector of the present utility model separated from the body;

[0033] Figure 8 It is Figure 7 Partial enlarged view of C in;

[0034] Figure 9 It is Figure 7 Stereogram of the first terminal in at another angle;

[0035] Figure 10 It is Figure 9 Developed schematic diagram of the first terminal in;

[0036] Figure 11 It is Figure 7 Top view of the combined connector in;

[0037] Figure 12 It is Figure 11 Cross-sectional view of the connector in installed on the circuit board before and the docking element crimping the front edge of the connector along the line D-D;

[0038] Figure 13 It is Figure 12 Schematic diagram of the connector in installed on the circuit board and the docking element crimping the connector;

[0039] Figure 14 It is Figure 12The cross-sectional view of the connector in installed on the circuit board and the mating component crimped to the connector and sliced in the reverse direction along line D-D;

[0040] Figure 15 The perspective view of one of the first terminals and the second terminals separated from the body in the third embodiment of the connector of the present utility model;

[0041] Figure 16 is Figure 15 The front view of the first terminal in ;

[0042] Figure 17 is Figure 16 The developed schematic view of the first terminal in ;

[0043] Figure 18 is Figure 15 The top view of the assembled connector in ;

[0044] Figure 19 is Figure 18 The partial cross-sectional view of the connector in before being installed on the circuit board and before the mating component is crimped to the connector, with one first terminal and the corresponding second terminal hidden and the body sliced along line E-E;

[0045] Figure 20 is Figure 18 The partial cross-sectional view of the connector in before being installed on the circuit board and before the mating component is crimped to the connector, with one second terminal hidden and only the body, the mating component, and the circuit board sliced along line E-E;

[0046] Figure 21 is Figure 20 The schematic view of the connector in installed on the circuit board and the mating component crimped to the connector;

[0047] Figure 22 is Figure 20 The partial cross-sectional view of the connector in installed on the circuit board and the mating component crimped to the connector, with one second terminal hidden and only the body, the mating component, and the circuit board sliced in the reverse direction along line E-E;

[0048] Figure 23 is Figure 18 The cross-sectional view of when the body is hidden and only one first terminal and the corresponding second terminal are shown, and the first terminal is under force and in the final state, sliced along line F-F;

[0049] Figure 24 is Figure 18 The cross-sectional view of when the body is hidden and only one first terminal and the corresponding second terminal are shown, and the first terminal is under force and in the final state, sliced along line G-G.

[0050] Explanation of the reference numerals in the specific embodiments:

[0051]

[0052]

Detailed Implementation Modes

[0053] For better understanding of the purpose, structure, features, and functions of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings and specific implementation modes.

[0054] For the sake of easy understanding, it is defined that the extending direction of the Z-axis is the up-and-down direction (where the positive direction of the Z-axis is the upward direction), the extending direction of the Y-axis is the left-and-right direction (where the positive direction of the Y-axis is the rightward direction), and the extending direction of the X-axis is the front-and-back direction (where the positive direction of the X-axis is the forward direction).

[0055] As Figures 1 to 6 shown, it is the first embodiment of the connector 100 of the present utility model. As Figures 7 to 14 shown, it is the second embodiment of the connector 100 of the present utility model. As Figures 15 to 24 shown, it is the third embodiment of the connector 100 of the present utility model. In each embodiment, the connector 100 is used for electrically connecting a mating element 200 to a circuit board 300. The connector 100 includes a body 1 and a plurality of first terminals 2. The body 1 is provided with a plurality of receiving holes 11 penetrating through the body 1 up and down. The plurality of first terminals 2 are respectively received in the plurality of receiving holes 11. One end of the first terminal 2 abuts against the mating element 200 upward, and the other end contacts the circuit board 300 downward. In the above three embodiments, the mating element 200 is a chip module. Of course, in other embodiments, according to requirements, the mating element 200 can also be other components, such as a circuit board.

[0056] As Figure 2 and Figure 3 、 Figure 9 and Figure 10 、as well as Figure 16 and Figure 17 shown, in each embodiment, the first terminal 2 is formed by stamping and curling a metal sheet. The first terminal 2 is generally in a cylindrical shape. The first terminal 2 is provided with a base portion 21, an upper elastic arm 22, a lower elastic arm 23, and an extension portion 24. The base portion 21 is a strip-shaped structure extending longitudinally up and down. The upper elastic arm 22 is connected to the upper end of the base portion 21. The lower elastic arm 23 is connected to the lower end of the base portion 21. The positions where the upper elastic arm 22 and the lower elastic arm 23 are respectively connected to the base portion 21 are arranged opposite to each other up and down. The extension portion 24 is connected to the base portion 21 and is located between the upper elastic arm 22 and the lower elastic arm 23 in the up-and-down direction.

[0057] As Figure 2 andFigure 3 , Figure 9 and Figure 10 , as well as Figure 16 and Figure 17 As shown in Figure 16 and Figure 17 , in each embodiment, the upper elastic arm 22 includes a plurality of upper arm portions 22B and a plurality of upper connecting portions 22C. The plurality of upper arm portions 22B are arranged at intervals in the vertical direction and are connected end to end through the upper connecting portions 22C. The lower elastic arm 23 includes a plurality of lower arm portions 23B and a plurality of lower connecting portions 23C. The plurality of lower arm portions 23B are arranged at intervals in the vertical direction and are connected end to end through the lower connecting portions 23C. An upper contact portion 22A protrudes from the upper arm portion 22B at one end of the upper elastic arm 22 away from the extension portion 24 in the vertical direction. A lower contact portion 23A protrudes from the lower arm portion 23B at one end of the lower elastic arm 23 away from the extension portion 24 in the vertical direction. In the vertical direction, the width of the extension portion 24 is greater than the width of the upper arm portion 22B and the width of the lower arm portion 23B.

[0058] As Figure 6 , Figure 13 and Figure 14 , as well as Figure 21 and Figure 22 As shown in Figure 13 , Figure 14 , Figure 21 , and Figure 22 , in each embodiment, when the lower contact portion 23A is mounted on the circuit board 300, the circuit board 300 abuts against the lower contact portion 23A upward. When the lower contact portion 23A moves to the final position, two adjacent lower connecting portions 23C in the vertical direction contact each other, and the base portion 21 contacts the adjacent lower connecting portion 23C. At the same time, the extension portion 24 contacts the adjacent lower connecting portion 23C at one end away from the base portion 21. When the docking element 200 presses the upper contact portion 22A downward and the upper contact portion 22A moves to the final position, two adjacent upper connecting portions 22C in the vertical direction contact each other, and the base portion 21 contacts the adjacent upper connecting portion 22C. At the same time, the extension portion 24 contacts the adjacent upper connecting portion 22C at one end away from the base portion 21.

[0059] As Figure 2 and Figure 4 , Figure 8 and Figure 12 As shown in Figure 4 and Figure 8 , in the first embodiment and the second embodiment, the first terminal 2 has a latching portion 25 extending outward from the cylinder of the extension portion 24 at one end away from the base portion 21. The latching portion 25 is used for latching the body 1. A connecting portion 251 is provided on the opposite side surface of the latching portion 25 away from the extension portion 24 for connecting a tape (not shown), as Figure 3 and Figure 10As shown, when the first terminal 2 is unfolded in the left - right direction to form a flat - plate structure, the combined extended length of the extension part 24 and the clamping part 25 is longer than the extended length of the upper - arm part 22B and the extended length of the lower - arm part 23B, which facilitates providing a space for connecting the tape to the first terminal 2 and facilitating the formation of the clamping part 25 while cutting off the material between two adjacent first terminals 2, thus simplifying the structure of the first terminal 2.

[0060] As Figure 4 and Figure 5 As shown, in the first embodiment, the body 1 includes an upper body 1A and a lower body 1B. The receiving hole 11 penetrates through the upper body 1A and the lower body 1B vertically. For each receiving hole 11, on the side of the lower body 1B facing the upper body 1A, there is a guiding surface 12 surrounding the corresponding receiving hole 11. The guiding surface 12 is used to guide the first terminal 2 into the receiving hole 11. On the side of the upper body 1A facing the lower body 1B, there are a plurality of notches 13 corresponding to the plurality of receiving holes 11, and the notches 13 communicate with the corresponding receiving holes 11. In other embodiments, for each receiving hole 11, on the side of the upper body 1A facing the lower body 1B, there can also be a guiding surface 12 surrounding the corresponding receiving hole 11, and on the side of the lower body 1B facing the upper body 1A, there is at least one notch 13, or a part of the notch 13 is provided on the upper body 1A and another part is provided on the lower body 1B.

[0061] As Figure 2 and Figure 4 As shown, in the first embodiment, a part of the clamping part 25 is received in the upper body 1A and another part is received in the lower body 1B. The clamping part 25 has a cutting - off opening 252 that is located on one side of the connecting - material part 251 in the up - down direction and is recessed inward relative to the connecting - material part 251. The cutting - off opening 252 facilitates cutting off the tape, and the clamping part 25 is clamped between the upper body 1A and the lower body 1B.

[0062] As Figure 3As shown, it is an exploded view of the first terminal 2 according to the first embodiment. The extension portion 24 has a first part 241 and a second part 242 connected to each other. The width of the first part 241 in the up-down direction is smaller than the width of the second part 242 in the up-down direction. In this embodiment, the first part 241 is connected to the base portion 21, and the second part 242 is connected to the clamping portion 25. The first part 241 has a first edge 241A and a second edge 241B oppositely arranged in the up-down direction. In this embodiment, the first edge 241A faces the upper arm portion 22B adjacent to the extension portion 24 in the up-down direction, and the second edge 241B faces the lower arm portion 23B adjacent to the extension portion 24 in the up-down direction. Moreover, the distance from the first edge 241A to the adjacent upper arm portion 22B is greater than the distance from the second edge 241B to the adjacent lower arm portion 23B.

[0063] As Figure 2 and Figure 3 As shown, the first terminal 2 further includes a plurality of limiting portions 26. The plurality of limiting portions 26 are arranged at intervals along the longitudinal direction of the first part 241. The limiting portion 26 is a cantilever structure connected to the first edge 241A, and the limiting portion 26 bends upward and outward from the first edge 241A. In other embodiments, the first edge 241A faces the lower arm portion 23B adjacent to the extension portion 24 in the up-down direction, the second edge 241B faces the upper arm portion 22B adjacent to the extension portion 24 in the up-down direction, and the distance from the first edge 241A to the adjacent lower arm portion 23B is greater than the distance from the second edge 241B to the adjacent upper arm portion 22B. The limiting portion 26 bends downward and outward from the first edge 241A.

[0064] As Figure 6 As shown, in the first embodiment, when the lower contact portion 23A is installed on the circuit board 300, the circuit board 300 abuts against the lower contact portion 23A upward. When the lower contact portion 23A is moved to the final position, the second part 242 contacts the adjacent lower connection portion 23C. The docking element 200 presses the upper contact portion 22A downward. When the upper contact portion 22A is moved to the final position, the second part 242 contacts the adjacent upper connection portion 22C.

[0065] As Figure 9 and Figure 10As shown, in the second embodiment, the first terminal 2 has at least one opening 27 formed by stamping the plate where the extension portion 24 is located, and at least one limiting portion 26 corresponding to at least one of the openings 27. The limiting portion 26 is a cantilever structure formed by bending and extending outward from the edge of the opening 27. In this embodiment, the limiting portion 26 is connected to the edge extending in the up-and-down direction in the opening 27. In other embodiments, the limiting portion 26 may be connected to the edge perpendicular to the up-and-down direction in the opening 27.

[0066] As Figure 19 shown, the body 1 has a support portion 14 extending into each of the receiving holes 11 and a column 15 extending upward from the support portion 14.

[0067] As Figure 16 、 Figure 17 and Figure 19 shown, in the third embodiment, the first terminal 2 is sleeved outside the column 15. The first terminal 2 has a pair of docking portions 28 extending from one end of the extension portion 24 away from the base portion 21, and an abutting portion 29 extending from a side of the base portion 21 facing away from the extension portion 24. The abutting portion 29 is disposed opposite to the docking portion 28. The dimensions of both the abutting portion 29 and the docking portion 28 in the up-and-down direction are greater than the dimensions of the extension portion 24 and the base portion 21 in the up-and-down direction. The docking portion 28 has a first side surface 281 facing the abutting portion 29 and a docking point 282 protruding from the first side surface 281 toward the abutting portion 29. The abutting portion 29 has a second side surface 291 facing the docking portion 28 and an abutting point 292 protruding from the second side surface 291 toward the docking portion 28. The abutting point 292 is used to contact the first side surface 281, and the docking point 282 is used to contact the second side surface 291. The docking point 282 and the abutting point 292 are arranged vertically offset. At least one of the docking portion 28 and the abutting portion 29 is supported upward by the support portion 14. In this embodiment, both the docking portion 28 and the abutting portion 29 are supported upward by the support portion 14.

[0068] As Figure 15 、 Figure 23 and Figure 24As shown, in the third embodiment, the connector 100 further includes a plurality of second terminals 3. The second terminals 3 are stamped and curled into a cylindrical shape from a metal sheet. The second terminal 3 includes a first cross bar 31 and a second cross bar 32 located below the first cross bar 31. The first cross bar 31 and the second cross bar 32 are integrally connected in the vertical direction by a plurality of connecting beams 33 distributed at intervals. A hollow portion 34 is formed between every two adjacent connecting beams 33. The second terminal 3 has a receiving space Q penetrating up and down. The first terminal 2 is received in the receiving space Q, and the upper contact portion 22A protrudes upward from the receiving space Q, and the lower contact portion 23A protrudes downward from the receiving space Q (auxiliary reference Figure 19 ). A plurality of the hollow portions 34 and a plurality of the connecting beams 33 are arranged circumferentially around the first terminal 2. The connecting beam 33 is provided with a convex portion 331 protruding toward the receiving space Q at a substantially middle position in the vertical direction, and a part of the convex portion 331 contacts the abutting portion 29 and the docking portion 28.

[0069] In summary, the connector of the present invention has the following beneficial effects:

[0070] (1) Compared with the prior art, in the present invention, the upper spring arm 22 and the lower spring arm 23 are connected by the base portion 21 and their positions are vertically opposite with respect to the base portion 21. The base portion 21 is connected to the extension portion 24. In the vertical direction, the extension portion 24 and the upper arm portion 22B adjacent to the extension portion 24 in the upper spring arm 22 and the lower arm portion 23B adjacent to the extension portion 24 in the lower spring arm 23 are arranged side by side. In the vertical direction, when the first terminal 2 is subjected to an excessive positive force, since the width of the extension portion 24 is greater than the width of the upper arm portion 22B and the width of the lower arm portion 23B, the extension portion 24 can provide a good buffering effect when the upper spring arm 22 and the lower spring arm 23 are subjected to force, ensuring that the upper spring arm 22 and the lower spring arm 23 will not be excessively deformed up and down due to bearing an excessive positive force, ensuring that the first terminal 2 can maintain good connection stability in the final state, and since the adjacent upper arm portion 22B and the adjacent lower arm portion 23B are connected end to end, the first terminal 2 has good elasticity and the compression stroke can be freely compressed.

[0071] (2) When the lower contact portion 23A is mounted on the circuit board 300, when the circuit board 300 abuts against the lower contact portion 23A upward to move the lower contact portion 23A to the final position, two adjacent lower connecting portions 23C in the vertical direction contact each other, and the base portion 21 contacts the adjacent lower connecting portion 23C. At the same time, the extension portion 24 contacts the adjacent lower connecting portion 23C at one end far from the base portion 21; when the docking element 200 presses the upper contact portion 22A downward to move the upper contact portion 22A to the final position, two adjacent upper connecting portions 22C in the vertical direction contact each other, and the base portion 21 contacts the adjacent upper connecting portion 22C. At the same time, the extension portion 24 also contacts the adjacent upper connecting portion 22C at one end far from the base portion 21, increasing the conduction path of the first terminal 2 and shortening the conduction path of the first terminal 2, and improving the characteristic impedance of the first terminal 2.

[0072] (3) When the first terminal 2 is unfolded into a flat structure, the common extension length of the extension portion 24 and the clamping portion 25 is longer than the extension length of the upper arm portion 22B and the extension length of the lower arm portion 23B, providing a space for the first terminal 2 to be connected to the tape and forming the clamping portion 25 while two adjacent first terminals 2 are cut off, simplifying the structure of the first terminal 2.

[0073] (4) The distance from the first edge 241A to the adjacent upper arm portion 22B is greater than the distance from the second edge 241B to the adjacent lower arm portion 23B. A plurality of limiting portions 26 are connected to the first edge 241A and are bent outward. The plurality of limiting portions 26 stably fix the first terminal 2 between the upper body 1A and the lower body 1B, ensuring that the first terminal 2 will not have excessive position offset due to external force in the receiving hole 11.

[0074] (5) The first terminal 2 is received in the second terminal 3. Some convex portions 331 of the second terminal 3 contact the abutting portion 29 and the docking portion 28, and the dimensions of both the abutting portion 29 and the docking portion 28 in the up-down direction are greater than the dimensions of the extension portion 24 in the up-down direction and the dimensions of the base portion 21 in the up-down direction, so that the contact area between the convex portion 331 and the abutting portion 29 and the docking portion 28 is increased, making the first terminal 2 capacitive, optimizing the impedance, and reducing the return loss.

[0075] The above detailed description is only for the description of the preferred embodiments of the present invention, and does not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the content of this creative specification and drawings are included in the patent scope of this creation.

Claims

1. A connector, comprising a body and a first terminal, wherein the body has a receiving hole for receiving the first terminal, and the receiving hole passes through the body in a vertical direction, characterized in that: The first terminal is cylindrical, and the first terminal comprises: an upper elastic arm, a lower elastic arm, a base and an extension portion, the upper elastic arm and the lower elastic arm are connected by the base, and the positions where the upper elastic arm and the lower elastic arm are connected to the base are opposite to each other; the upper elastic arm comprises a plurality of upper arm portions and at least one upper connecting portion, the plurality of upper arm portions are arranged at intervals up and down and connected end to end by the upper connecting portion, the lower elastic arm comprises a plurality of lower arm portions and at least one lower connecting portion, the plurality of lower arm portions are arranged at intervals up and down and connected end to end by the lower connecting portion; the extension portion is connected to the base and is arranged side by side with the upper arm portion and the lower arm portion in the up and down direction, the upper elastic arm is provided with an upper contact portion protruding from the upper arm portion away from one end of the extension portion in the up and down direction, and the lower elastic arm is provided with a lower contact portion protruding from the lower arm portion away from one end of the extension portion in the up and down direction, and the width of the extension portion is greater than the width of the upper arm portion and the width of the lower arm portion in the up and down direction.

2. The connector according to claim 1, wherein: The first terminal has a clamping portion extending outward from the cylinder of the extension portion at one end of the extension portion away from the base portion, and the clamping portion is clamped on the body.

3. The connector according to claim 2, wherein: The clamping portion is provided with a material connecting portion on a surface of a side opposite to the extending portion, and is used for connecting a material belt.

4. The connector according to claim 3, wherein: The clamping portion has a material cutting opening which is located at one side of the material connecting portion in the up-down direction and is recessed inwardly relative to the material connecting portion.

5. The connector according to claim 2, wherein: The first terminal is formed by stamping and curling a metal plate. When the first terminal is unfolded to form a flat plate structure, the common extension length of the extension portion and the clamping portion is longer than the extension length of the upper arm portion and the extension length of the lower arm portion.

6. The connector according to claim 1, wherein: The extension portion has a first part, the first part has a first edge and a second edge arranged opposite to each other in the up and down directions, the first terminal has at least one limiting portion bent outward from the first edge, and the limiting portion is limited to the body.

7. The connector according to claim 6, wherein: A distance from one of the upper arm and the lower arm facing the first edge in the up-down direction to the first edge is greater than a distance from the other of the upper arm and the lower arm facing the second edge in the up-down direction.

8. The connector according to claim 6, wherein: The main body includes an upper body and a lower body that are formed separately, the receiving hole passes through the upper body and the lower body from top to bottom, the upper body and the lower body jointly limit the limiting portion, and a guide surface surrounding the receiving hole is provided on one side of the upper body and the lower body facing each other in the up and down directions corresponding to the receiving hole.

9. The connector according to claim 6, wherein: The main body comprises an upper body and a lower body which are formed separately. A notch is recessed on one side of the upper body and the lower body facing the other, and the limiting portion is received in the notch.

10. The connector according to claim 1, wherein: The first terminal is stamped from a metal plate and curled into a cylindrical shape. The first terminal has at least one opening stamped from the plate where the extension portion is located and at least one limiting portion corresponding to the at least one opening. The limiting portion is limited to the body.

11. The connector according to claim 1, wherein: The connector is used to electrically connect a docking element and a circuit board. When the circuit board abuts against the lower contact portion upward to move the lower contact portion to a final position, the two upper and lower adjacent lower connection portions contact each other, and the base contacts the lower connection portions adjacent thereto. When the docking element presses the upper contact portion downward to move the upper contact portion to a final position, the two upper and lower adjacent upper connection portions contact each other, and the base contacts the upper connection portion adjacent thereto.

12. The connector according to claim 1, wherein: The connector is used to electrically connect a docking element and a circuit board. When the circuit board abuts against the lower contact portion upward to move the lower contact portion to a final position, the extension portion contacts the adjacent lower connecting portion at an end away from the base. When the docking element presses the upper contact portion downward to move the upper contact portion to a final position, the extension portion contacts the adjacent upper connecting portion at an end away from the base.

13. The connector according to claim 1, wherein: The first terminal has a contact portion extending from a side of the base away from the extension portion and a docking portion extending from an end of the extension portion away from the base, the contact portion and the docking portion are arranged opposite to each other, the contact portion has a first side surface facing the docking portion and a contact point protruding from the first side surface toward the docking portion, the docking portion has a second side surface facing the contact portion and a docking point protruding from the second side surface toward the contact portion, the contact point is used to contact the first side surface, and the docking point is used to contact the second side surface, and the docking point and the contact point are staggered up and down.

14. The connector according to claim 1, wherein: The first terminal has an abutment portion extending from a side of the base away from the extension portion and a docking portion extending from an end of the extension portion away from the base, the abutment portion and the docking portion are arranged opposite to each other, the main body extends into the receiving hole to form a supporting portion and extends upward from the supporting portion to form a column, the first terminal is sleeved outside the column, and at least one of the docking portion and the abutment portion is supported upward by the supporting portion.

15. The connector according to claim 1, wherein: It further includes a second terminal, which has a receiving space that passes through from top to bottom, the first terminal is received in the receiving space, and the upper contact portion protrudes upward from the receiving space, and the lower contact portion protrudes downward from the receiving space, and the second terminal is provided with a plurality of protrusions protruding into the receiving space, and the protrusions are used to contact the first terminal.

16. The connector according to claim 15, wherein: The second terminal is stamped from a metal plate and curled into a cylindrical shape. The second terminal includes a plurality of hollow portions. The hollow portions and the protrusions are alternately arranged in a circumferential direction around the first terminal.

17. The connector according to claim 15, wherein: The first terminal has an abutting portion extending from a side of the base away from the extending portion, and a docking portion extending from an end of the extending portion away from the base, the abutting portion and the docking portion are arranged opposite to each other, and the dimensions of the abutting portion and the docking portion in the up and down direction are both larger than the dimensions of the extending portion in the up and down direction and the dimensions of the base in the up and down direction, and at least a portion of the protrusion contacts the abutting portion and the docking portion.

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